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e04a16fb AG |
1 | /* Source code parsing and tree node generation for the GNU compiler |
2 | for the Java(TM) language. | |
df32d2ce | 3 | Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc. |
e04a16fb AG |
4 | Contributed by Alexandre Petit-Bianco (apbianco@cygnus.com) |
5 | ||
6 | This file is part of GNU CC. | |
7 | ||
8 | GNU CC is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GNU CC is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GNU CC; see the file COPYING. If not, write to | |
20 | the Free Software Foundation, 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. | |
22 | ||
23 | Java and all Java-based marks are trademarks or registered trademarks | |
24 | of Sun Microsystems, Inc. in the United States and other countries. | |
25 | The Free Software Foundation is independent of Sun Microsystems, Inc. */ | |
26 | ||
27 | /* This file parses java source code and issues a tree node image | |
28 | suitable for code generation (byte code and targeted CPU assembly | |
29 | language). | |
30 | ||
31 | The grammar conforms to the Java grammar described in "The Java(TM) | |
32 | Language Specification. J. Gosling, B. Joy, G. Steele. Addison Wesley | |
33 | 1996, ISBN 0-201-63451-1" | |
34 | ||
35 | The following modifications were brought to the original grammar: | |
36 | ||
37 | method_body: added the rule '| block SC_TK' | |
e04a16fb AG |
38 | static_initializer: added the rule 'static block SC_TK'. |
39 | ||
40 | Note: All the extra rules described above should go away when the | |
41 | empty_statement rule will work. | |
42 | ||
43 | statement_nsi: 'nsi' should be read no_short_if. | |
44 | ||
45 | Some rules have been modified to support JDK1.1 inner classes | |
46 | definitions and other extensions. */ | |
47 | ||
48 | %{ | |
e04a16fb | 49 | #include "config.h" |
36635152 GS |
50 | #include "system.h" |
51 | #include <dirent.h> | |
e04a16fb AG |
52 | #include "tree.h" |
53 | #include "rtl.h" | |
54 | #include "obstack.h" | |
0a2138e2 | 55 | #include "toplev.h" |
e04a16fb AG |
56 | #include "flags.h" |
57 | #include "java-tree.h" | |
58 | #include "jcf.h" | |
59 | #include "lex.h" | |
60 | #include "parse.h" | |
61 | #include "zipfile.h" | |
5e942c50 | 62 | #include "convert.h" |
63a212ed | 63 | #include "buffer.h" |
f099f336 | 64 | #include "xref.h" |
b384405b | 65 | #include "function.h" |
138657ec | 66 | #include "except.h" |
0ae70c6a | 67 | #include "defaults.h" |
e04a16fb | 68 | |
c2952b01 APB |
69 | #ifndef DIR_SEPARATOR |
70 | #define DIR_SEPARATOR '/' | |
71 | #endif | |
72 | ||
82371d41 | 73 | /* Local function prototypes */ |
df32d2ce KG |
74 | static char *java_accstring_lookup PARAMS ((int)); |
75 | static void classitf_redefinition_error PARAMS ((const char *,tree, tree, tree)); | |
76 | static void variable_redefinition_error PARAMS ((tree, tree, tree, int)); | |
df32d2ce KG |
77 | static tree create_class PARAMS ((int, tree, tree, tree)); |
78 | static tree create_interface PARAMS ((int, tree, tree)); | |
c2952b01 | 79 | static void end_class_declaration PARAMS ((int)); |
df32d2ce KG |
80 | static tree find_field PARAMS ((tree, tree)); |
81 | static tree lookup_field_wrapper PARAMS ((tree, tree)); | |
82 | static int duplicate_declaration_error_p PARAMS ((tree, tree, tree)); | |
83 | static void register_fields PARAMS ((int, tree, tree)); | |
c2952b01 | 84 | static tree parser_qualified_classname PARAMS ((int, tree)); |
df32d2ce KG |
85 | static int parser_check_super PARAMS ((tree, tree, tree)); |
86 | static int parser_check_super_interface PARAMS ((tree, tree, tree)); | |
87 | static void check_modifiers_consistency PARAMS ((int)); | |
88 | static tree lookup_cl PARAMS ((tree)); | |
89 | static tree lookup_java_method2 PARAMS ((tree, tree, int)); | |
90 | static tree method_header PARAMS ((int, tree, tree, tree)); | |
91 | static void fix_method_argument_names PARAMS ((tree ,tree)); | |
92 | static tree method_declarator PARAMS ((tree, tree)); | |
93 | static void parse_warning_context PARAMS ((tree cl, const char *msg, ...)) | |
d4476be2 | 94 | ATTRIBUTE_PRINTF_2; |
df32d2ce KG |
95 | static void issue_warning_error_from_context PARAMS ((tree, const char *msg, va_list)); |
96 | static void parse_ctor_invocation_error PARAMS ((void)); | |
97 | static tree parse_jdk1_1_error PARAMS ((const char *)); | |
98 | static void complete_class_report_errors PARAMS ((jdep *)); | |
99 | static int process_imports PARAMS ((void)); | |
100 | static void read_import_dir PARAMS ((tree)); | |
101 | static int find_in_imports_on_demand PARAMS ((tree)); | |
9a7ab4b3 | 102 | static void find_in_imports PARAMS ((tree)); |
df32d2ce | 103 | static int check_pkg_class_access PARAMS ((tree, tree)); |
9a7ab4b3 | 104 | static void register_package PARAMS ((tree)); |
df32d2ce KG |
105 | static tree resolve_package PARAMS ((tree, tree *)); |
106 | static tree lookup_package_type PARAMS ((const char *, int)); | |
107 | static tree lookup_package_type_and_set_next PARAMS ((const char *, int, tree *)); | |
c2952b01 | 108 | static tree resolve_class PARAMS ((tree, tree, tree, tree)); |
df32d2ce KG |
109 | static void declare_local_variables PARAMS ((int, tree, tree)); |
110 | static void source_start_java_method PARAMS ((tree)); | |
111 | static void source_end_java_method PARAMS ((void)); | |
112 | static void expand_start_java_method PARAMS ((tree)); | |
113 | static tree find_name_in_single_imports PARAMS ((tree)); | |
114 | static void check_abstract_method_header PARAMS ((tree)); | |
115 | static tree lookup_java_interface_method2 PARAMS ((tree, tree)); | |
116 | static tree resolve_expression_name PARAMS ((tree, tree *)); | |
c2952b01 | 117 | static tree maybe_create_class_interface_decl PARAMS ((tree, tree, tree, tree)); |
df32d2ce | 118 | static int check_class_interface_creation PARAMS ((int, int, tree, |
82371d41 | 119 | tree, tree, tree)); |
df32d2ce | 120 | static tree patch_method_invocation PARAMS ((tree, tree, tree, |
89e09b9a | 121 | int *, tree *)); |
df32d2ce KG |
122 | static int breakdown_qualified PARAMS ((tree *, tree *, tree)); |
123 | static tree resolve_and_layout PARAMS ((tree, tree)); | |
9a7ab4b3 | 124 | static tree qualify_and_find PARAMS ((tree, tree, tree)); |
df32d2ce KG |
125 | static tree resolve_no_layout PARAMS ((tree, tree)); |
126 | static int invocation_mode PARAMS ((tree, int)); | |
127 | static tree find_applicable_accessible_methods_list PARAMS ((int, tree, | |
82371d41 | 128 | tree, tree)); |
df32d2ce | 129 | static void search_applicable_methods_list PARAMS ((int, tree, tree, tree, |
1982388a | 130 | tree *, tree *)); |
df32d2ce KG |
131 | static tree find_most_specific_methods_list PARAMS ((tree)); |
132 | static int argument_types_convertible PARAMS ((tree, tree)); | |
133 | static tree patch_invoke PARAMS ((tree, tree, tree)); | |
c2952b01 | 134 | static int maybe_use_access_method PARAMS ((int, tree *, tree *)); |
df32d2ce KG |
135 | static tree lookup_method_invoke PARAMS ((int, tree, tree, tree, tree)); |
136 | static tree register_incomplete_type PARAMS ((int, tree, tree, tree)); | |
137 | static tree obtain_incomplete_type PARAMS ((tree)); | |
138 | static tree java_complete_lhs PARAMS ((tree)); | |
139 | static tree java_complete_tree PARAMS ((tree)); | |
c2952b01 | 140 | static tree maybe_generate_pre_expand_clinit PARAMS ((tree)); |
92d83515 | 141 | static int maybe_yank_clinit PARAMS ((tree)); |
df32d2ce KG |
142 | static void java_complete_expand_method PARAMS ((tree)); |
143 | static int unresolved_type_p PARAMS ((tree, tree *)); | |
144 | static void create_jdep_list PARAMS ((struct parser_ctxt *)); | |
145 | static tree build_expr_block PARAMS ((tree, tree)); | |
146 | static tree enter_block PARAMS ((void)); | |
147 | static tree enter_a_block PARAMS ((tree)); | |
148 | static tree exit_block PARAMS ((void)); | |
149 | static tree lookup_name_in_blocks PARAMS ((tree)); | |
150 | static void maybe_absorb_scoping_blocks PARAMS ((void)); | |
151 | static tree build_method_invocation PARAMS ((tree, tree)); | |
152 | static tree build_new_invocation PARAMS ((tree, tree)); | |
153 | static tree build_assignment PARAMS ((int, int, tree, tree)); | |
154 | static tree build_binop PARAMS ((enum tree_code, int, tree, tree)); | |
155 | static int check_final_assignment PARAMS ((tree ,tree)); | |
156 | static tree patch_assignment PARAMS ((tree, tree, tree )); | |
157 | static tree patch_binop PARAMS ((tree, tree, tree)); | |
158 | static tree build_unaryop PARAMS ((int, int, tree)); | |
159 | static tree build_incdec PARAMS ((int, int, tree, int)); | |
160 | static tree patch_unaryop PARAMS ((tree, tree)); | |
161 | static tree build_cast PARAMS ((int, tree, tree)); | |
162 | static tree build_null_of_type PARAMS ((tree)); | |
163 | static tree patch_cast PARAMS ((tree, tree)); | |
164 | static int valid_ref_assignconv_cast_p PARAMS ((tree, tree, int)); | |
165 | static int valid_builtin_assignconv_identity_widening_p PARAMS ((tree, tree)); | |
166 | static int valid_cast_to_p PARAMS ((tree, tree)); | |
167 | static int valid_method_invocation_conversion_p PARAMS ((tree, tree)); | |
168 | static tree try_builtin_assignconv PARAMS ((tree, tree, tree)); | |
169 | static tree try_reference_assignconv PARAMS ((tree, tree)); | |
170 | static tree build_unresolved_array_type PARAMS ((tree)); | |
171 | static tree build_array_from_name PARAMS ((tree, tree, tree, tree *)); | |
172 | static tree build_array_ref PARAMS ((int, tree, tree)); | |
173 | static tree patch_array_ref PARAMS ((tree)); | |
174 | static tree make_qualified_name PARAMS ((tree, tree, int)); | |
175 | static tree merge_qualified_name PARAMS ((tree, tree)); | |
176 | static tree make_qualified_primary PARAMS ((tree, tree, int)); | |
177 | static int resolve_qualified_expression_name PARAMS ((tree, tree *, | |
82371d41 | 178 | tree *, tree *)); |
df32d2ce | 179 | static void qualify_ambiguous_name PARAMS ((tree)); |
df32d2ce KG |
180 | static tree resolve_field_access PARAMS ((tree, tree *, tree *)); |
181 | static tree build_newarray_node PARAMS ((tree, tree, int)); | |
182 | static tree patch_newarray PARAMS ((tree)); | |
183 | static tree resolve_type_during_patch PARAMS ((tree)); | |
184 | static tree build_this PARAMS ((int)); | |
9a7ab4b3 | 185 | static tree build_wfl_wrap PARAMS ((tree, int)); |
df32d2ce KG |
186 | static tree build_return PARAMS ((int, tree)); |
187 | static tree patch_return PARAMS ((tree)); | |
188 | static tree maybe_access_field PARAMS ((tree, tree, tree)); | |
189 | static int complete_function_arguments PARAMS ((tree)); | |
c2952b01 APB |
190 | static int check_for_static_method_reference PARAMS ((tree, tree, tree, |
191 | tree, tree)); | |
df32d2ce KG |
192 | static int not_accessible_p PARAMS ((tree, tree, int)); |
193 | static void check_deprecation PARAMS ((tree, tree)); | |
194 | static int class_in_current_package PARAMS ((tree)); | |
195 | static tree build_if_else_statement PARAMS ((int, tree, tree, tree)); | |
196 | static tree patch_if_else_statement PARAMS ((tree)); | |
197 | static tree add_stmt_to_compound PARAMS ((tree, tree, tree)); | |
198 | static tree add_stmt_to_block PARAMS ((tree, tree, tree)); | |
199 | static tree patch_exit_expr PARAMS ((tree)); | |
200 | static tree build_labeled_block PARAMS ((int, tree)); | |
201 | static tree finish_labeled_statement PARAMS ((tree, tree)); | |
202 | static tree build_bc_statement PARAMS ((int, int, tree)); | |
203 | static tree patch_bc_statement PARAMS ((tree)); | |
204 | static tree patch_loop_statement PARAMS ((tree)); | |
205 | static tree build_new_loop PARAMS ((tree)); | |
206 | static tree build_loop_body PARAMS ((int, tree, int)); | |
207 | static tree finish_loop_body PARAMS ((int, tree, tree, int)); | |
208 | static tree build_debugable_stmt PARAMS ((int, tree)); | |
209 | static tree finish_for_loop PARAMS ((int, tree, tree, tree)); | |
210 | static tree patch_switch_statement PARAMS ((tree)); | |
211 | static tree string_constant_concatenation PARAMS ((tree, tree)); | |
212 | static tree build_string_concatenation PARAMS ((tree, tree)); | |
213 | static tree patch_string_cst PARAMS ((tree)); | |
214 | static tree patch_string PARAMS ((tree)); | |
215 | static tree build_try_statement PARAMS ((int, tree, tree)); | |
216 | static tree build_try_finally_statement PARAMS ((int, tree, tree)); | |
217 | static tree patch_try_statement PARAMS ((tree)); | |
218 | static tree patch_synchronized_statement PARAMS ((tree, tree)); | |
219 | static tree patch_throw_statement PARAMS ((tree, tree)); | |
220 | static void check_thrown_exceptions PARAMS ((int, tree)); | |
221 | static int check_thrown_exceptions_do PARAMS ((tree)); | |
222 | static void purge_unchecked_exceptions PARAMS ((tree)); | |
223 | static void check_throws_clauses PARAMS ((tree, tree, tree)); | |
224 | static void finish_method_declaration PARAMS ((tree)); | |
225 | static tree build_super_invocation PARAMS ((tree)); | |
226 | static int verify_constructor_circularity PARAMS ((tree, tree)); | |
227 | static char *constructor_circularity_msg PARAMS ((tree, tree)); | |
228 | static tree build_this_super_qualified_invocation PARAMS ((int, tree, tree, | |
82371d41 | 229 | int, int)); |
df32d2ce KG |
230 | static const char *get_printable_method_name PARAMS ((tree)); |
231 | static tree patch_conditional_expr PARAMS ((tree, tree, tree)); | |
c2952b01 APB |
232 | static tree generate_finit PARAMS ((tree)); |
233 | static void add_instance_initializer PARAMS ((tree)); | |
df32d2ce | 234 | static void fix_constructors PARAMS ((tree)); |
c2952b01 APB |
235 | static tree build_alias_initializer_parameter_list PARAMS ((int, tree, |
236 | tree, int *)); | |
237 | static void craft_constructor PARAMS ((tree, tree)); | |
238 | static int verify_constructor_super PARAMS ((tree)); | |
df32d2ce KG |
239 | static tree create_artificial_method PARAMS ((tree, int, tree, tree, tree)); |
240 | static void start_artificial_method_body PARAMS ((tree)); | |
241 | static void end_artificial_method_body PARAMS ((tree)); | |
242 | static int check_method_redefinition PARAMS ((tree, tree)); | |
243 | static int reset_method_name PARAMS ((tree)); | |
165f37bc | 244 | static int check_method_types_complete PARAMS ((tree)); |
df32d2ce KG |
245 | static void java_check_regular_methods PARAMS ((tree)); |
246 | static void java_check_abstract_methods PARAMS ((tree)); | |
247 | static tree maybe_build_primttype_type_ref PARAMS ((tree, tree)); | |
248 | static void unreachable_stmt_error PARAMS ((tree)); | |
249 | static tree find_expr_with_wfl PARAMS ((tree)); | |
250 | static void missing_return_error PARAMS ((tree)); | |
251 | static tree build_new_array_init PARAMS ((int, tree)); | |
252 | static tree patch_new_array_init PARAMS ((tree, tree)); | |
253 | static tree maybe_build_array_element_wfl PARAMS ((tree)); | |
254 | static int array_constructor_check_entry PARAMS ((tree, tree)); | |
255 | static const char *purify_type_name PARAMS ((const char *)); | |
256 | static tree fold_constant_for_init PARAMS ((tree, tree)); | |
257 | static tree strip_out_static_field_access_decl PARAMS ((tree)); | |
258 | static jdeplist *reverse_jdep_list PARAMS ((struct parser_ctxt *)); | |
259 | static void static_ref_err PARAMS ((tree, tree, tree)); | |
260 | static void parser_add_interface PARAMS ((tree, tree, tree)); | |
261 | static void add_superinterfaces PARAMS ((tree, tree)); | |
262 | static tree jdep_resolve_class PARAMS ((jdep *)); | |
263 | static int note_possible_classname PARAMS ((const char *, int)); | |
c2952b01 APB |
264 | static void java_complete_expand_classes PARAMS ((void)); |
265 | static void java_complete_expand_class PARAMS ((tree)); | |
266 | static void java_complete_expand_methods PARAMS ((tree)); | |
df32d2ce KG |
267 | static tree cut_identifier_in_qualified PARAMS ((tree)); |
268 | static tree java_stabilize_reference PARAMS ((tree)); | |
269 | static tree do_unary_numeric_promotion PARAMS ((tree)); | |
270 | static char * operator_string PARAMS ((tree)); | |
271 | static tree do_merge_string_cste PARAMS ((tree, const char *, int, int)); | |
272 | static tree merge_string_cste PARAMS ((tree, tree, int)); | |
273 | static tree java_refold PARAMS ((tree)); | |
274 | static int java_decl_equiv PARAMS ((tree, tree)); | |
275 | static int binop_compound_p PARAMS ((enum tree_code)); | |
276 | static tree search_loop PARAMS ((tree)); | |
277 | static int labeled_block_contains_loop_p PARAMS ((tree, tree)); | |
278 | static void check_abstract_method_definitions PARAMS ((int, tree, tree)); | |
279 | static void java_check_abstract_method_definitions PARAMS ((tree)); | |
280 | static void java_debug_context_do PARAMS ((int)); | |
c2952b01 APB |
281 | static void java_parser_context_push_initialized_field PARAMS ((void)); |
282 | static void java_parser_context_pop_initialized_field PARAMS ((void)); | |
283 | static tree reorder_static_initialized PARAMS ((tree)); | |
284 | static void java_parser_context_suspend PARAMS ((void)); | |
285 | static void java_parser_context_resume PARAMS ((void)); | |
286 | ||
287 | /* JDK 1.1 work. FIXME */ | |
288 | ||
289 | static tree maybe_make_nested_class_name PARAMS ((tree)); | |
290 | static void make_nested_class_name PARAMS ((tree)); | |
291 | static void set_nested_class_simple_name_value PARAMS ((tree, int)); | |
292 | static void link_nested_class_to_enclosing PARAMS ((void)); | |
293 | static tree find_as_inner_class PARAMS ((tree, tree, tree)); | |
294 | static tree find_as_inner_class_do PARAMS ((tree, tree)); | |
295 | static int check_inner_class_redefinition PARAMS ((tree, tree)); | |
296 | ||
297 | static tree build_thisn_assign PARAMS ((void)); | |
298 | static tree build_current_thisn PARAMS ((tree)); | |
299 | static tree build_access_to_thisn PARAMS ((tree, tree, int)); | |
300 | static tree maybe_build_thisn_access_method PARAMS ((tree)); | |
301 | ||
302 | static tree build_outer_field_access PARAMS ((tree, tree)); | |
303 | static tree build_outer_field_access_methods PARAMS ((tree)); | |
304 | static tree build_outer_field_access_expr PARAMS ((int, tree, tree, | |
305 | tree, tree)); | |
306 | static tree build_outer_method_access_method PARAMS ((tree)); | |
307 | static tree build_new_access_id PARAMS ((void)); | |
308 | static tree build_outer_field_access_method PARAMS ((tree, tree, tree, | |
309 | tree, tree)); | |
310 | ||
311 | static int outer_field_access_p PARAMS ((tree, tree)); | |
312 | static int outer_field_expanded_access_p PARAMS ((tree, tree *, | |
313 | tree *, tree *)); | |
314 | static tree outer_field_access_fix PARAMS ((tree, tree, tree)); | |
315 | static tree build_incomplete_class_ref PARAMS ((int, tree)); | |
316 | static tree patch_incomplete_class_ref PARAMS ((tree)); | |
317 | static tree create_anonymous_class PARAMS ((int, tree)); | |
318 | static void patch_anonymous_class PARAMS ((tree, tree, tree)); | |
319 | static void add_inner_class_fields PARAMS ((tree, tree)); | |
82371d41 | 320 | |
165f37bc APB |
321 | static tree build_dot_class_method PARAMS ((tree)); |
322 | static tree build_dot_class_method_invocation PARAMS ((tree)); | |
c0b864fc | 323 | static void create_new_parser_context PARAMS ((int)); |
165f37bc | 324 | |
e04a16fb AG |
325 | /* Number of error found so far. */ |
326 | int java_error_count; | |
327 | /* Number of warning found so far. */ | |
328 | int java_warning_count; | |
ce6e9147 APB |
329 | /* Tell when not to fold, when doing xrefs */ |
330 | int do_not_fold; | |
c2952b01 APB |
331 | /* Cyclic inheritance report, as it can be set by layout_class */ |
332 | char *cyclic_inheritance_report; | |
333 | ||
334 | /* Tell when we're within an instance initializer */ | |
335 | static int in_instance_initializer; | |
e04a16fb AG |
336 | |
337 | /* The current parser context */ | |
d4370213 | 338 | struct parser_ctxt *ctxp; |
e04a16fb | 339 | |
d4370213 | 340 | /* List of things that were analyzed for which code will be generated */ |
b351b287 APB |
341 | static struct parser_ctxt *ctxp_for_generation = NULL; |
342 | ||
e04a16fb AG |
343 | /* binop_lookup maps token to tree_code. It is used where binary |
344 | operations are involved and required by the parser. RDIV_EXPR | |
345 | covers both integral/floating point division. The code is changed | |
346 | once the type of both operator is worked out. */ | |
347 | ||
348 | static enum tree_code binop_lookup[19] = | |
349 | { | |
350 | PLUS_EXPR, MINUS_EXPR, MULT_EXPR, RDIV_EXPR, TRUNC_MOD_EXPR, | |
351 | LSHIFT_EXPR, RSHIFT_EXPR, URSHIFT_EXPR, | |
352 | BIT_AND_EXPR, BIT_XOR_EXPR, BIT_IOR_EXPR, | |
353 | TRUTH_ANDIF_EXPR, TRUTH_ORIF_EXPR, | |
354 | EQ_EXPR, NE_EXPR, GT_EXPR, GE_EXPR, LT_EXPR, LE_EXPR, | |
355 | }; | |
356 | #define BINOP_LOOKUP(VALUE) \ | |
357 | binop_lookup [((VALUE) - PLUS_TK)% \ | |
358 | (sizeof (binop_lookup) / sizeof (binop_lookup[0]))] | |
359 | ||
5cbdba64 APB |
360 | /* This is the end index for binary operators that can also be used |
361 | in compound assignements. */ | |
362 | #define BINOP_COMPOUND_CANDIDATES 11 | |
363 | ||
e04a16fb AG |
364 | /* Fake WFL used to report error message. It is initialized once if |
365 | needed and reused with it's location information is overriden. */ | |
15fdcfe9 | 366 | tree wfl_operator = NULL_TREE; |
e04a16fb AG |
367 | |
368 | /* The "$L" identifier we use to create labels. */ | |
b67d701b PB |
369 | static tree label_id = NULL_TREE; |
370 | ||
371 | /* The "StringBuffer" identifier used for the String `+' operator. */ | |
372 | static tree wfl_string_buffer = NULL_TREE; | |
373 | ||
374 | /* The "append" identifier used for String `+' operator. */ | |
375 | static tree wfl_append = NULL_TREE; | |
376 | ||
377 | /* The "toString" identifier used for String `+' operator. */ | |
378 | static tree wfl_to_string = NULL_TREE; | |
ba179f9f APB |
379 | |
380 | /* The "java.lang" import qualified name. */ | |
381 | static tree java_lang_id = NULL_TREE; | |
09ed0f70 | 382 | |
c2952b01 APB |
383 | /* The generated `inst$' identifier used for generated enclosing |
384 | instance/field access functions. */ | |
385 | static tree inst_id = NULL_TREE; | |
386 | ||
09ed0f70 APB |
387 | /* The "java.lang.Cloneable" qualified name. */ |
388 | static tree java_lang_cloneable = NULL_TREE; | |
f099f336 APB |
389 | |
390 | /* Context and flag for static blocks */ | |
391 | static tree current_static_block = NULL_TREE; | |
392 | ||
c2952b01 APB |
393 | /* The generated `write_parm_value$' identifier. */ |
394 | static tree wpv_id; | |
395 | ||
ee07f4f4 APB |
396 | /* The list of all packages we've seen so far */ |
397 | static tree package_list = NULL_TREE; | |
2884c41e KG |
398 | |
399 | /* Check modifiers. If one doesn't fit, retrieve it in its declaration | |
400 | line and point it out. */ | |
401 | /* Should point out the one that don't fit. ASCII/unicode, going | |
402 | backward. FIXME */ | |
403 | ||
404 | #define check_modifiers(__message, __value, __mask) do { \ | |
405 | if ((__value) & ~(__mask)) \ | |
406 | { \ | |
407 | int i, remainder = (__value) & ~(__mask); \ | |
408 | for (i = 0; i <= 10; i++) \ | |
409 | if ((1 << i) & remainder) \ | |
410 | parse_error_context (ctxp->modifier_ctx [i], (__message), \ | |
411 | java_accstring_lookup (1 << i)); \ | |
412 | } \ | |
413 | } while (0) | |
ee07f4f4 | 414 | |
e04a16fb AG |
415 | %} |
416 | ||
417 | %union { | |
418 | tree node; | |
419 | int sub_token; | |
420 | struct { | |
421 | int token; | |
422 | int location; | |
423 | } operator; | |
424 | int value; | |
425 | } | |
426 | ||
9ee9b555 KG |
427 | %{ |
428 | #include "lex.c" | |
429 | %} | |
430 | ||
e04a16fb AG |
431 | %pure_parser |
432 | ||
433 | /* Things defined here have to match the order of what's in the | |
434 | binop_lookup table. */ | |
435 | ||
436 | %token PLUS_TK MINUS_TK MULT_TK DIV_TK REM_TK | |
437 | %token LS_TK SRS_TK ZRS_TK | |
438 | %token AND_TK XOR_TK OR_TK | |
439 | %token BOOL_AND_TK BOOL_OR_TK | |
440 | %token EQ_TK NEQ_TK GT_TK GTE_TK LT_TK LTE_TK | |
441 | ||
442 | /* This maps to the same binop_lookup entry than the token above */ | |
443 | ||
444 | %token PLUS_ASSIGN_TK MINUS_ASSIGN_TK MULT_ASSIGN_TK DIV_ASSIGN_TK | |
445 | %token REM_ASSIGN_TK | |
446 | %token LS_ASSIGN_TK SRS_ASSIGN_TK ZRS_ASSIGN_TK | |
447 | %token AND_ASSIGN_TK XOR_ASSIGN_TK OR_ASSIGN_TK | |
448 | ||
449 | ||
450 | /* Modifier TOKEN have to be kept in this order. Don't scramble it */ | |
451 | ||
452 | %token PUBLIC_TK PRIVATE_TK PROTECTED_TK | |
453 | %token STATIC_TK FINAL_TK SYNCHRONIZED_TK | |
454 | %token VOLATILE_TK TRANSIENT_TK NATIVE_TK | |
455 | %token PAD_TK ABSTRACT_TK MODIFIER_TK | |
456 | ||
457 | /* Keep those two in order, too */ | |
458 | %token DECR_TK INCR_TK | |
459 | ||
460 | /* From now one, things can be in any order */ | |
461 | ||
462 | %token DEFAULT_TK IF_TK THROW_TK | |
463 | %token BOOLEAN_TK DO_TK IMPLEMENTS_TK | |
464 | %token THROWS_TK BREAK_TK IMPORT_TK | |
465 | %token ELSE_TK INSTANCEOF_TK RETURN_TK | |
466 | %token VOID_TK CATCH_TK INTERFACE_TK | |
467 | %token CASE_TK EXTENDS_TK FINALLY_TK | |
468 | %token SUPER_TK WHILE_TK CLASS_TK | |
469 | %token SWITCH_TK CONST_TK TRY_TK | |
470 | %token FOR_TK NEW_TK CONTINUE_TK | |
471 | %token GOTO_TK PACKAGE_TK THIS_TK | |
472 | ||
473 | %token BYTE_TK SHORT_TK INT_TK LONG_TK | |
474 | %token CHAR_TK INTEGRAL_TK | |
475 | ||
476 | %token FLOAT_TK DOUBLE_TK FP_TK | |
477 | ||
478 | %token ID_TK | |
479 | ||
480 | %token REL_QM_TK REL_CL_TK NOT_TK NEG_TK | |
481 | ||
482 | %token ASSIGN_ANY_TK ASSIGN_TK | |
483 | %token OP_TK CP_TK OCB_TK CCB_TK OSB_TK CSB_TK SC_TK C_TK DOT_TK | |
484 | ||
485 | %token STRING_LIT_TK CHAR_LIT_TK INT_LIT_TK FP_LIT_TK | |
486 | %token TRUE_TK FALSE_TK BOOL_LIT_TK NULL_TK | |
487 | ||
c2952b01 | 488 | %type <value> modifiers MODIFIER_TK final synchronized |
e04a16fb AG |
489 | |
490 | %type <node> super ID_TK identifier | |
491 | %type <node> name simple_name qualified_name | |
c2952b01 | 492 | %type <node> type_declaration compilation_unit |
e04a16fb AG |
493 | field_declaration method_declaration extends_interfaces |
494 | interfaces interface_type_list | |
c2952b01 | 495 | class_member_declaration |
e04a16fb AG |
496 | import_declarations package_declaration |
497 | type_declarations interface_body | |
498 | interface_member_declaration constant_declaration | |
499 | interface_member_declarations interface_type | |
500 | abstract_method_declaration interface_type_list | |
501 | %type <node> class_body_declaration class_member_declaration | |
502 | static_initializer constructor_declaration block | |
22eed1e6 | 503 | %type <node> class_body_declarations constructor_header |
e04a16fb AG |
504 | %type <node> class_or_interface_type class_type class_type_list |
505 | constructor_declarator explicit_constructor_invocation | |
b9f7e36c | 506 | %type <node> dim_expr dim_exprs this_or_super throws |
e04a16fb AG |
507 | |
508 | %type <node> variable_declarator_id variable_declarator | |
509 | variable_declarators variable_initializer | |
22eed1e6 | 510 | variable_initializers constructor_body |
ac825856 | 511 | array_initializer |
e04a16fb | 512 | |
2e5eb5c5 | 513 | %type <node> class_body block_end constructor_block_end |
e04a16fb AG |
514 | %type <node> statement statement_without_trailing_substatement |
515 | labeled_statement if_then_statement label_decl | |
516 | if_then_else_statement while_statement for_statement | |
517 | statement_nsi labeled_statement_nsi do_statement | |
518 | if_then_else_statement_nsi while_statement_nsi | |
519 | for_statement_nsi statement_expression_list for_init | |
520 | for_update statement_expression expression_statement | |
521 | primary_no_new_array expression primary | |
522 | array_creation_expression array_type | |
523 | class_instance_creation_expression field_access | |
524 | method_invocation array_access something_dot_new | |
525 | argument_list postfix_expression while_expression | |
526 | post_increment_expression post_decrement_expression | |
527 | unary_expression_not_plus_minus unary_expression | |
528 | pre_increment_expression pre_decrement_expression | |
529 | unary_expression_not_plus_minus cast_expression | |
530 | multiplicative_expression additive_expression | |
531 | shift_expression relational_expression | |
532 | equality_expression and_expression | |
533 | exclusive_or_expression inclusive_or_expression | |
534 | conditional_and_expression conditional_or_expression | |
535 | conditional_expression assignment_expression | |
536 | left_hand_side assignment for_header for_begin | |
537 | constant_expression do_statement_begin empty_statement | |
b67d701b | 538 | switch_statement synchronized_statement throw_statement |
f8976021 | 539 | try_statement switch_expression switch_block |
15fdcfe9 | 540 | catches catch_clause catch_clause_parameter finally |
c2952b01 | 541 | anonymous_class_creation |
e04a16fb AG |
542 | %type <node> return_statement break_statement continue_statement |
543 | ||
544 | %type <operator> ASSIGN_TK MULT_ASSIGN_TK DIV_ASSIGN_TK | |
545 | %type <operator> REM_ASSIGN_TK PLUS_ASSIGN_TK MINUS_ASSIGN_TK | |
546 | %type <operator> LS_ASSIGN_TK SRS_ASSIGN_TK ZRS_ASSIGN_TK | |
547 | %type <operator> AND_ASSIGN_TK XOR_ASSIGN_TK OR_ASSIGN_TK | |
548 | %type <operator> ASSIGN_ANY_TK assignment_operator | |
549 | %token <operator> EQ_TK GTE_TK ZRS_TK SRS_TK GT_TK LTE_TK LS_TK | |
550 | %token <operator> BOOL_AND_TK AND_TK BOOL_OR_TK OR_TK INCR_TK PLUS_TK | |
551 | %token <operator> DECR_TK MINUS_TK MULT_TK DIV_TK XOR_TK REM_TK NEQ_TK | |
7f10c2e2 | 552 | %token <operator> NEG_TK REL_QM_TK REL_CL_TK NOT_TK LT_TK OCB_TK CCB_TK |
5e942c50 | 553 | %token <operator> OP_TK OSB_TK DOT_TK THROW_TK INSTANCEOF_TK |
b9f7e36c APB |
554 | %type <operator> THIS_TK SUPER_TK RETURN_TK BREAK_TK CONTINUE_TK |
555 | %type <operator> CASE_TK DEFAULT_TK TRY_TK CATCH_TK SYNCHRONIZED_TK | |
c2952b01 | 556 | %type <operator> NEW_TK |
e04a16fb AG |
557 | |
558 | %type <node> method_body | |
559 | ||
560 | %type <node> literal INT_LIT_TK FP_LIT_TK BOOL_LIT_TK CHAR_LIT_TK | |
561 | STRING_LIT_TK NULL_TK VOID_TK | |
562 | ||
563 | %type <node> IF_TK WHILE_TK FOR_TK | |
564 | ||
565 | %type <node> formal_parameter_list formal_parameter | |
566 | method_declarator method_header | |
567 | ||
c2952b01 | 568 | %type <node> primitive_type reference_type type |
e04a16fb AG |
569 | BOOLEAN_TK INTEGRAL_TK FP_TK |
570 | ||
c2952b01 APB |
571 | /* Added or modified JDK 1.1 rule types */ |
572 | %type <node> type_literals array_type_literal | |
573 | ||
e04a16fb AG |
574 | %% |
575 | /* 19.2 Production from 2.3: The Syntactic Grammar */ | |
576 | goal: | |
577 | compilation_unit | |
578 | {} | |
579 | ; | |
580 | ||
581 | /* 19.3 Productions from 3: Lexical structure */ | |
582 | literal: | |
583 | INT_LIT_TK | |
584 | | FP_LIT_TK | |
585 | | BOOL_LIT_TK | |
586 | | CHAR_LIT_TK | |
587 | | STRING_LIT_TK | |
588 | | NULL_TK | |
589 | ; | |
590 | ||
591 | /* 19.4 Productions from 4: Types, Values and Variables */ | |
592 | type: | |
593 | primitive_type | |
594 | | reference_type | |
595 | ; | |
596 | ||
597 | primitive_type: | |
598 | INTEGRAL_TK | |
599 | | FP_TK | |
600 | | BOOLEAN_TK | |
601 | ; | |
602 | ||
603 | reference_type: | |
604 | class_or_interface_type | |
605 | | array_type | |
606 | ; | |
607 | ||
608 | class_or_interface_type: | |
609 | name | |
610 | ; | |
611 | ||
612 | class_type: | |
613 | class_or_interface_type /* Default rule */ | |
614 | ; | |
615 | ||
616 | interface_type: | |
617 | class_or_interface_type | |
618 | ; | |
619 | ||
620 | array_type: | |
621 | primitive_type OSB_TK CSB_TK | |
622 | { | |
623 | $$ = build_java_array_type ($1, -1); | |
624 | CLASS_LOADED_P ($$) = 1; | |
625 | } | |
626 | | name OSB_TK CSB_TK | |
627 | { $$ = build_unresolved_array_type ($1); } | |
628 | | array_type OSB_TK CSB_TK | |
629 | { $$ = build_unresolved_array_type ($1); } | |
630 | | primitive_type OSB_TK error | |
631 | {RULE ("']' expected"); RECOVER;} | |
632 | | array_type OSB_TK error | |
633 | {RULE ("']' expected"); RECOVER;} | |
634 | ; | |
635 | ||
636 | /* 19.5 Productions from 6: Names */ | |
637 | name: | |
638 | simple_name /* Default rule */ | |
639 | | qualified_name /* Default rule */ | |
640 | ; | |
641 | ||
642 | simple_name: | |
643 | identifier /* Default rule */ | |
644 | ; | |
645 | ||
646 | qualified_name: | |
647 | name DOT_TK identifier | |
648 | { $$ = make_qualified_name ($1, $3, $2.location); } | |
649 | ; | |
650 | ||
651 | identifier: | |
652 | ID_TK | |
653 | ; | |
654 | ||
655 | /* 19.6: Production from 7: Packages */ | |
656 | compilation_unit: | |
657 | {$$ = NULL;} | |
658 | | package_declaration | |
659 | | import_declarations | |
660 | | type_declarations | |
661 | | package_declaration import_declarations | |
662 | | package_declaration type_declarations | |
663 | | import_declarations type_declarations | |
664 | | package_declaration import_declarations type_declarations | |
665 | ; | |
666 | ||
667 | import_declarations: | |
668 | import_declaration | |
669 | { | |
670 | $$ = NULL; | |
671 | } | |
672 | | import_declarations import_declaration | |
673 | { | |
674 | $$ = NULL; | |
675 | } | |
676 | ; | |
677 | ||
678 | type_declarations: | |
679 | type_declaration | |
680 | | type_declarations type_declaration | |
681 | ; | |
682 | ||
683 | package_declaration: | |
684 | PACKAGE_TK name SC_TK | |
ee07f4f4 APB |
685 | { |
686 | ctxp->package = EXPR_WFL_NODE ($2); | |
9a7ab4b3 | 687 | register_package (ctxp->package); |
ee07f4f4 | 688 | } |
e04a16fb AG |
689 | | PACKAGE_TK error |
690 | {yyerror ("Missing name"); RECOVER;} | |
691 | | PACKAGE_TK name error | |
692 | {yyerror ("';' expected"); RECOVER;} | |
693 | ; | |
694 | ||
695 | import_declaration: | |
696 | single_type_import_declaration | |
697 | | type_import_on_demand_declaration | |
698 | ; | |
699 | ||
700 | single_type_import_declaration: | |
701 | IMPORT_TK name SC_TK | |
702 | { | |
9a7ab4b3 | 703 | tree name = EXPR_WFL_NODE ($2), last_name; |
e04a16fb | 704 | int i = IDENTIFIER_LENGTH (name)-1; |
49f48c71 | 705 | const char *last = &IDENTIFIER_POINTER (name)[i]; |
e04a16fb AG |
706 | while (last != IDENTIFIER_POINTER (name)) |
707 | { | |
708 | if (last [0] == '.') | |
709 | break; | |
710 | last--; | |
711 | } | |
712 | last_name = get_identifier (++last); | |
713 | if (IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P (last_name)) | |
714 | { | |
715 | tree err = find_name_in_single_imports (last_name); | |
716 | if (err && err != name) | |
717 | parse_error_context | |
718 | ($2, "Ambiguous class: `%s' and `%s'", | |
719 | IDENTIFIER_POINTER (name), | |
720 | IDENTIFIER_POINTER (err)); | |
5e942c50 | 721 | else |
9a7ab4b3 | 722 | REGISTER_IMPORT ($2, last_name); |
e04a16fb AG |
723 | } |
724 | else | |
5e942c50 | 725 | REGISTER_IMPORT ($2, last_name); |
e04a16fb AG |
726 | } |
727 | | IMPORT_TK error | |
728 | {yyerror ("Missing name"); RECOVER;} | |
729 | | IMPORT_TK name error | |
730 | {yyerror ("';' expected"); RECOVER;} | |
731 | ; | |
732 | ||
733 | type_import_on_demand_declaration: | |
734 | IMPORT_TK name DOT_TK MULT_TK SC_TK | |
735 | { | |
736 | tree name = EXPR_WFL_NODE ($2); | |
ba179f9f APB |
737 | /* Don't import java.lang.* twice. */ |
738 | if (name != java_lang_id) | |
739 | { | |
ba179f9f | 740 | read_import_dir ($2); |
9a7ab4b3 APB |
741 | ctxp->import_demand_list = |
742 | chainon (ctxp->import_demand_list, | |
743 | build_tree_list ($2, NULL_TREE)); | |
ba179f9f | 744 | } |
e04a16fb AG |
745 | } |
746 | | IMPORT_TK name DOT_TK error | |
747 | {yyerror ("'*' expected"); RECOVER;} | |
748 | | IMPORT_TK name DOT_TK MULT_TK error | |
749 | {yyerror ("';' expected"); RECOVER;} | |
750 | ; | |
751 | ||
752 | type_declaration: | |
753 | class_declaration | |
c2952b01 | 754 | { end_class_declaration (0); } |
e04a16fb | 755 | | interface_declaration |
c2952b01 | 756 | { end_class_declaration (0); } |
e04a16fb AG |
757 | | SC_TK |
758 | { $$ = NULL; } | |
759 | | error | |
760 | { | |
761 | YYERROR_NOW; | |
762 | yyerror ("Class or interface declaration expected"); | |
763 | } | |
764 | ; | |
765 | ||
766 | /* 19.7 Shortened from the original: | |
767 | modifiers: modifier | modifiers modifier | |
768 | modifier: any of public... */ | |
769 | modifiers: | |
770 | MODIFIER_TK | |
771 | { | |
772 | $$ = (1 << $1); | |
773 | } | |
774 | | modifiers MODIFIER_TK | |
775 | { | |
776 | int acc = (1 << $2); | |
777 | if ($$ & acc) | |
778 | parse_error_context | |
779 | (ctxp->modifier_ctx [$2], "Modifier `%s' declared twice", | |
780 | java_accstring_lookup (acc)); | |
781 | else | |
782 | { | |
783 | $$ |= acc; | |
784 | } | |
785 | } | |
786 | ; | |
787 | ||
788 | /* 19.8.1 Production from $8.1: Class Declaration */ | |
789 | class_declaration: | |
790 | modifiers CLASS_TK identifier super interfaces | |
791 | { create_class ($1, $3, $4, $5); } | |
792 | class_body | |
e04a16fb AG |
793 | | CLASS_TK identifier super interfaces |
794 | { create_class (0, $2, $3, $4); } | |
795 | class_body | |
e04a16fb AG |
796 | | modifiers CLASS_TK error |
797 | {yyerror ("Missing class name"); RECOVER;} | |
798 | | CLASS_TK error | |
799 | {yyerror ("Missing class name"); RECOVER;} | |
800 | | CLASS_TK identifier error | |
0b4d333e APB |
801 | { |
802 | if (!ctxp->class_err) yyerror ("'{' expected"); | |
803 | DRECOVER(class1); | |
804 | } | |
e04a16fb AG |
805 | | modifiers CLASS_TK identifier error |
806 | {if (!ctxp->class_err) yyerror ("'{' expected"); RECOVER;} | |
807 | ; | |
808 | ||
809 | super: | |
810 | { $$ = NULL; } | |
811 | | EXTENDS_TK class_type | |
812 | { $$ = $2; } | |
813 | | EXTENDS_TK class_type error | |
814 | {yyerror ("'{' expected"); ctxp->class_err=1;} | |
815 | | EXTENDS_TK error | |
816 | {yyerror ("Missing super class name"); ctxp->class_err=1;} | |
817 | ; | |
818 | ||
819 | interfaces: | |
820 | { $$ = NULL_TREE; } | |
821 | | IMPLEMENTS_TK interface_type_list | |
822 | { $$ = $2; } | |
823 | | IMPLEMENTS_TK error | |
824 | { | |
825 | ctxp->class_err=1; | |
826 | yyerror ("Missing interface name"); | |
827 | } | |
828 | ; | |
829 | ||
830 | interface_type_list: | |
831 | interface_type | |
832 | { | |
833 | ctxp->interface_number = 1; | |
834 | $$ = build_tree_list ($1, NULL_TREE); | |
835 | } | |
836 | | interface_type_list C_TK interface_type | |
837 | { | |
838 | ctxp->interface_number++; | |
839 | $$ = chainon ($1, build_tree_list ($3, NULL_TREE)); | |
840 | } | |
841 | | interface_type_list C_TK error | |
842 | {yyerror ("Missing interface name"); RECOVER;} | |
843 | ; | |
844 | ||
845 | class_body: | |
846 | OCB_TK CCB_TK | |
7f10c2e2 APB |
847 | { |
848 | /* Store the location of the `}' when doing xrefs */ | |
849 | if (flag_emit_xref) | |
c2952b01 | 850 | DECL_END_SOURCE_LINE (GET_CPC ()) = |
7f10c2e2 | 851 | EXPR_WFL_ADD_COL ($2.location, 1); |
c2952b01 | 852 | $$ = GET_CPC (); |
7f10c2e2 | 853 | } |
e04a16fb | 854 | | OCB_TK class_body_declarations CCB_TK |
7f10c2e2 APB |
855 | { |
856 | /* Store the location of the `}' when doing xrefs */ | |
857 | if (flag_emit_xref) | |
c2952b01 | 858 | DECL_END_SOURCE_LINE (GET_CPC ()) = |
7f10c2e2 | 859 | EXPR_WFL_ADD_COL ($3.location, 1); |
c2952b01 | 860 | $$ = GET_CPC (); |
7f10c2e2 | 861 | } |
e04a16fb AG |
862 | ; |
863 | ||
864 | class_body_declarations: | |
865 | class_body_declaration | |
866 | | class_body_declarations class_body_declaration | |
867 | ; | |
868 | ||
869 | class_body_declaration: | |
870 | class_member_declaration | |
871 | | static_initializer | |
872 | | constructor_declaration | |
873 | | block /* Added, JDK1.1, instance initializer */ | |
c2952b01 APB |
874 | { |
875 | TREE_CHAIN ($1) = CPC_INSTANCE_INITIALIZER_STMT (ctxp); | |
876 | SET_CPC_INSTANCE_INITIALIZER_STMT (ctxp, $1); | |
877 | } | |
e04a16fb AG |
878 | ; |
879 | ||
880 | class_member_declaration: | |
881 | field_declaration | |
0b4d333e APB |
882 | | field_declaration SC_TK |
883 | { $$ = $1; } | |
e04a16fb AG |
884 | | method_declaration |
885 | | class_declaration /* Added, JDK1.1 inner classes */ | |
c2952b01 APB |
886 | { end_class_declaration (1); } |
887 | | interface_declaration /* Added, JDK1.1 inner interfaces */ | |
888 | { end_class_declaration (1); } | |
e04a16fb AG |
889 | ; |
890 | ||
891 | /* 19.8.2 Productions from 8.3: Field Declarations */ | |
892 | field_declaration: | |
893 | type variable_declarators SC_TK | |
894 | { register_fields (0, $1, $2); } | |
895 | | modifiers type variable_declarators SC_TK | |
896 | { | |
e04a16fb AG |
897 | check_modifiers |
898 | ("Illegal modifier `%s' for field declaration", | |
899 | $1, FIELD_MODIFIERS); | |
900 | check_modifiers_consistency ($1); | |
901 | register_fields ($1, $2, $3); | |
902 | } | |
903 | ; | |
904 | ||
905 | variable_declarators: | |
906 | /* Should we use build_decl_list () instead ? FIXME */ | |
907 | variable_declarator /* Default rule */ | |
908 | | variable_declarators C_TK variable_declarator | |
909 | { $$ = chainon ($1, $3); } | |
910 | | variable_declarators C_TK error | |
911 | {yyerror ("Missing term"); RECOVER;} | |
912 | ; | |
913 | ||
914 | variable_declarator: | |
915 | variable_declarator_id | |
916 | { $$ = build_tree_list ($1, NULL_TREE); } | |
917 | | variable_declarator_id ASSIGN_TK variable_initializer | |
918 | { | |
919 | if (java_error_count) | |
920 | $3 = NULL_TREE; | |
921 | $$ = build_tree_list | |
922 | ($1, build_assignment ($2.token, $2.location, $1, $3)); | |
923 | } | |
924 | | variable_declarator_id ASSIGN_TK error | |
925 | { | |
926 | yyerror ("Missing variable initializer"); | |
927 | $$ = build_tree_list ($1, NULL_TREE); | |
928 | RECOVER; | |
929 | } | |
930 | | variable_declarator_id ASSIGN_TK variable_initializer error | |
931 | { | |
932 | yyerror ("';' expected"); | |
933 | $$ = build_tree_list ($1, NULL_TREE); | |
934 | RECOVER; | |
935 | } | |
936 | ; | |
937 | ||
938 | variable_declarator_id: | |
939 | identifier | |
940 | | variable_declarator_id OSB_TK CSB_TK | |
c583dd46 | 941 | { $$ = build_unresolved_array_type ($1); } |
e04a16fb AG |
942 | | identifier error |
943 | {yyerror ("Invalid declaration"); DRECOVER(vdi);} | |
944 | | variable_declarator_id OSB_TK error | |
945 | {yyerror ("']' expected"); DRECOVER(vdi);} | |
946 | | variable_declarator_id CSB_TK error | |
947 | {yyerror ("Unbalanced ']'"); DRECOVER(vdi);} | |
948 | ; | |
949 | ||
950 | variable_initializer: | |
951 | expression | |
952 | | array_initializer | |
e04a16fb AG |
953 | ; |
954 | ||
955 | /* 19.8.3 Productions from 8.4: Method Declarations */ | |
956 | method_declaration: | |
957 | method_header | |
958 | { | |
959 | current_function_decl = $1; | |
c2952b01 APB |
960 | if (current_function_decl |
961 | && TREE_CODE (current_function_decl) == FUNCTION_DECL) | |
962 | source_start_java_method (current_function_decl); | |
963 | else | |
964 | current_function_decl = NULL_TREE; | |
e04a16fb AG |
965 | } |
966 | method_body | |
b635eb2f | 967 | { finish_method_declaration ($3); } |
e04a16fb AG |
968 | | method_header error |
969 | {YYNOT_TWICE yyerror ("'{' expected"); RECOVER;} | |
970 | ; | |
971 | ||
972 | method_header: | |
973 | type method_declarator throws | |
b9f7e36c | 974 | { $$ = method_header (0, $1, $2, $3); } |
e04a16fb | 975 | | VOID_TK method_declarator throws |
b9f7e36c | 976 | { $$ = method_header (0, void_type_node, $2, $3); } |
e04a16fb | 977 | | modifiers type method_declarator throws |
b9f7e36c | 978 | { $$ = method_header ($1, $2, $3, $4); } |
e04a16fb | 979 | | modifiers VOID_TK method_declarator throws |
b9f7e36c | 980 | { $$ = method_header ($1, void_type_node, $3, $4); } |
e04a16fb | 981 | | type error |
efa0a23f APB |
982 | { |
983 | yyerror ("Invalid method declaration, method name required"); | |
984 | RECOVER; | |
985 | } | |
e04a16fb AG |
986 | | modifiers type error |
987 | {RECOVER;} | |
988 | | VOID_TK error | |
989 | {yyerror ("Identifier expected"); RECOVER;} | |
990 | | modifiers VOID_TK error | |
991 | {yyerror ("Identifier expected"); RECOVER;} | |
992 | | modifiers error | |
993 | { | |
994 | yyerror ("Invalid method declaration, return type required"); | |
995 | RECOVER; | |
996 | } | |
997 | ; | |
998 | ||
999 | method_declarator: | |
1000 | identifier OP_TK CP_TK | |
c2952b01 APB |
1001 | { |
1002 | ctxp->formal_parameter_number = 0; | |
1003 | $$ = method_declarator ($1, NULL_TREE); | |
1004 | } | |
e04a16fb AG |
1005 | | identifier OP_TK formal_parameter_list CP_TK |
1006 | { $$ = method_declarator ($1, $3); } | |
1007 | | method_declarator OSB_TK CSB_TK | |
1008 | { | |
1886c9d8 APB |
1009 | EXPR_WFL_LINECOL (wfl_operator) = $2.location; |
1010 | TREE_PURPOSE ($1) = | |
1011 | build_unresolved_array_type (TREE_PURPOSE ($1)); | |
1012 | parse_warning_context | |
1013 | (wfl_operator, | |
1014 | "Discouraged form of returned type specification"); | |
e04a16fb AG |
1015 | } |
1016 | | identifier OP_TK error | |
1017 | {yyerror ("')' expected"); DRECOVER(method_declarator);} | |
1018 | | method_declarator OSB_TK error | |
1019 | {yyerror ("']' expected"); RECOVER;} | |
1020 | ; | |
1021 | ||
1022 | formal_parameter_list: | |
1023 | formal_parameter | |
1024 | { | |
1025 | ctxp->formal_parameter_number = 1; | |
1026 | } | |
1027 | | formal_parameter_list C_TK formal_parameter | |
1028 | { | |
1029 | ctxp->formal_parameter_number += 1; | |
1030 | $$ = chainon ($1, $3); | |
1031 | } | |
1032 | | formal_parameter_list C_TK error | |
c2952b01 | 1033 | { yyerror ("Missing formal parameter term"); RECOVER; } |
e04a16fb AG |
1034 | ; |
1035 | ||
1036 | formal_parameter: | |
1037 | type variable_declarator_id | |
1038 | { | |
1039 | $$ = build_tree_list ($2, $1); | |
1040 | } | |
18990de5 | 1041 | | final type variable_declarator_id /* Added, JDK1.1 final parms */ |
5256aa37 | 1042 | { |
5256aa37 | 1043 | $$ = build_tree_list ($3, $2); |
c2952b01 | 1044 | ARG_FINAL_P ($$) = 1; |
5256aa37 | 1045 | } |
e04a16fb | 1046 | | type error |
f8989a66 APB |
1047 | { |
1048 | yyerror ("Missing identifier"); RECOVER; | |
1049 | $$ = NULL_TREE; | |
1050 | } | |
18990de5 | 1051 | | final type error |
e04a16fb | 1052 | { |
e04a16fb | 1053 | yyerror ("Missing identifier"); RECOVER; |
f8989a66 | 1054 | $$ = NULL_TREE; |
e04a16fb AG |
1055 | } |
1056 | ; | |
1057 | ||
18990de5 JB |
1058 | final: |
1059 | modifiers | |
1060 | { | |
1061 | check_modifiers ("Illegal modifier `%s'. Only `final' was expected here", | |
1062 | $1, ACC_FINAL); | |
1063 | if ($1 != ACC_FINAL) | |
1064 | MODIFIER_WFL (FINAL_TK) = build_wfl_node (NULL_TREE); | |
1065 | } | |
1066 | ; | |
1067 | ||
e04a16fb | 1068 | throws: |
b9f7e36c | 1069 | { $$ = NULL_TREE; } |
e04a16fb | 1070 | | THROWS_TK class_type_list |
b9f7e36c | 1071 | { $$ = $2; } |
e04a16fb AG |
1072 | | THROWS_TK error |
1073 | {yyerror ("Missing class type term"); RECOVER;} | |
1074 | ; | |
1075 | ||
1076 | class_type_list: | |
1077 | class_type | |
c877974e | 1078 | { $$ = build_tree_list ($1, $1); } |
e04a16fb | 1079 | | class_type_list C_TK class_type |
c877974e | 1080 | { $$ = tree_cons ($3, $3, $1); } |
e04a16fb AG |
1081 | | class_type_list C_TK error |
1082 | {yyerror ("Missing class type term"); RECOVER;} | |
1083 | ; | |
1084 | ||
1085 | method_body: | |
1086 | block | |
1087 | | block SC_TK | |
1088 | | SC_TK | |
1089 | { $$ = NULL_TREE; } /* Probably not the right thing to do. */ | |
1090 | ; | |
1091 | ||
1092 | /* 19.8.4 Productions from 8.5: Static Initializers */ | |
1093 | static_initializer: | |
1094 | static block | |
1095 | { | |
c2952b01 APB |
1096 | TREE_CHAIN ($2) = CPC_STATIC_INITIALIZER_STMT (ctxp); |
1097 | SET_CPC_STATIC_INITIALIZER_STMT (ctxp, $2); | |
e04a16fb AG |
1098 | } |
1099 | | static block SC_TK /* Shouldn't be here. FIXME */ | |
1100 | { | |
c2952b01 APB |
1101 | TREE_CHAIN ($2) = CPC_STATIC_INITIALIZER_STMT (ctxp); |
1102 | SET_CPC_STATIC_INITIALIZER_STMT (ctxp, $2); | |
e04a16fb AG |
1103 | } |
1104 | ; | |
1105 | ||
1106 | static: /* Test lval.sub_token here */ | |
c2952b01 | 1107 | modifiers |
e04a16fb | 1108 | { |
c2952b01 APB |
1109 | check_modifiers ("Illegal modifier `%s' for static initializer", $1, ACC_STATIC); |
1110 | /* Can't have a static initializer in an innerclass */ | |
1111 | if ($1 | ACC_STATIC && | |
1112 | GET_CPC_LIST () && !TOPLEVEL_CLASS_DECL_P (GET_CPC ())) | |
1113 | parse_error_context | |
1114 | (MODIFIER_WFL (STATIC_TK), | |
1115 | "Can't define static initializer in class `%s'. Static initializer can only be defined in top-level classes", | |
1116 | IDENTIFIER_POINTER (DECL_NAME (GET_CPC ()))); | |
e04a16fb AG |
1117 | SOURCE_FRONTEND_DEBUG (("Modifiers: %d", $1)); |
1118 | } | |
1119 | ; | |
1120 | ||
1121 | /* 19.8.5 Productions from 8.6: Constructor Declarations */ | |
e04a16fb | 1122 | constructor_declaration: |
22eed1e6 | 1123 | constructor_header |
e04a16fb | 1124 | { |
22eed1e6 APB |
1125 | current_function_decl = $1; |
1126 | source_start_java_method (current_function_decl); | |
e04a16fb | 1127 | } |
22eed1e6 | 1128 | constructor_body |
b635eb2f | 1129 | { finish_method_declaration ($3); } |
22eed1e6 APB |
1130 | ; |
1131 | ||
1132 | constructor_header: | |
1133 | constructor_declarator throws | |
1134 | { $$ = method_header (0, NULL_TREE, $1, $2); } | |
1135 | | modifiers constructor_declarator throws | |
1136 | { $$ = method_header ($1, NULL_TREE, $2, $3); } | |
e04a16fb AG |
1137 | ; |
1138 | ||
1139 | constructor_declarator: | |
1140 | simple_name OP_TK CP_TK | |
c2952b01 APB |
1141 | { |
1142 | ctxp->formal_parameter_number = 0; | |
1143 | $$ = method_declarator ($1, NULL_TREE); | |
1144 | } | |
e04a16fb | 1145 | | simple_name OP_TK formal_parameter_list CP_TK |
22eed1e6 | 1146 | { $$ = method_declarator ($1, $3); } |
e04a16fb AG |
1147 | ; |
1148 | ||
1149 | constructor_body: | |
22eed1e6 APB |
1150 | /* Unlike regular method, we always need a complete (empty) |
1151 | body so we can safely perform all the required code | |
1152 | addition (super invocation and field initialization) */ | |
2e5eb5c5 | 1153 | block_begin constructor_block_end |
22eed1e6 | 1154 | { |
9bbc7d9f | 1155 | BLOCK_EXPR_BODY ($2) = empty_stmt_node; |
22eed1e6 APB |
1156 | $$ = $2; |
1157 | } | |
2e5eb5c5 | 1158 | | block_begin explicit_constructor_invocation constructor_block_end |
22eed1e6 | 1159 | { $$ = $3; } |
2e5eb5c5 | 1160 | | block_begin block_statements constructor_block_end |
22eed1e6 | 1161 | { $$ = $3; } |
2e5eb5c5 | 1162 | | block_begin explicit_constructor_invocation block_statements constructor_block_end |
22eed1e6 | 1163 | { $$ = $4; } |
e04a16fb AG |
1164 | ; |
1165 | ||
2e5eb5c5 APB |
1166 | constructor_block_end: |
1167 | block_end | |
1168 | | block_end SC_TK | |
1169 | ||
e04a16fb AG |
1170 | /* Error recovery for that rule moved down expression_statement: rule. */ |
1171 | explicit_constructor_invocation: | |
1172 | this_or_super OP_TK CP_TK SC_TK | |
22eed1e6 APB |
1173 | { |
1174 | $$ = build_method_invocation ($1, NULL_TREE); | |
1175 | $$ = build_debugable_stmt (EXPR_WFL_LINECOL ($1), $$); | |
1176 | $$ = java_method_add_stmt (current_function_decl, $$); | |
1177 | } | |
e04a16fb | 1178 | | this_or_super OP_TK argument_list CP_TK SC_TK |
22eed1e6 APB |
1179 | { |
1180 | $$ = build_method_invocation ($1, $3); | |
1181 | $$ = build_debugable_stmt (EXPR_WFL_LINECOL ($1), $$); | |
1182 | $$ = java_method_add_stmt (current_function_decl, $$); | |
1183 | } | |
e04a16fb AG |
1184 | /* Added, JDK1.1 inner classes. Modified because the rule |
1185 | 'primary' couldn't work. */ | |
1186 | | name DOT_TK SUPER_TK OP_TK argument_list CP_TK SC_TK | |
b67d701b | 1187 | {$$ = parse_jdk1_1_error ("explicit constructor invocation"); } |
e04a16fb | 1188 | | name DOT_TK SUPER_TK OP_TK CP_TK SC_TK |
b67d701b | 1189 | {$$ = parse_jdk1_1_error ("explicit constructor invocation"); } |
e04a16fb AG |
1190 | ; |
1191 | ||
1192 | this_or_super: /* Added, simplifies error diagnostics */ | |
1193 | THIS_TK | |
1194 | { | |
9ee9b555 | 1195 | tree wfl = build_wfl_node (this_identifier_node); |
e04a16fb AG |
1196 | EXPR_WFL_LINECOL (wfl) = $1.location; |
1197 | $$ = wfl; | |
1198 | } | |
1199 | | SUPER_TK | |
1200 | { | |
9ee9b555 | 1201 | tree wfl = build_wfl_node (super_identifier_node); |
e04a16fb AG |
1202 | EXPR_WFL_LINECOL (wfl) = $1.location; |
1203 | $$ = wfl; | |
1204 | } | |
1205 | ; | |
1206 | ||
1207 | /* 19.9 Productions from 9: Interfaces */ | |
1208 | /* 19.9.1 Productions from 9.1: Interfaces Declarations */ | |
1209 | interface_declaration: | |
1210 | INTERFACE_TK identifier | |
1211 | { create_interface (0, $2, NULL_TREE); } | |
1212 | interface_body | |
e04a16fb AG |
1213 | | modifiers INTERFACE_TK identifier |
1214 | { create_interface ($1, $3, NULL_TREE); } | |
1215 | interface_body | |
e04a16fb AG |
1216 | | INTERFACE_TK identifier extends_interfaces |
1217 | { create_interface (0, $2, $3); } | |
1218 | interface_body | |
e04a16fb AG |
1219 | | modifiers INTERFACE_TK identifier extends_interfaces |
1220 | { create_interface ($1, $3, $4); } | |
1221 | interface_body | |
e04a16fb | 1222 | | INTERFACE_TK identifier error |
0b4d333e | 1223 | {yyerror ("'{' expected"); RECOVER;} |
e04a16fb | 1224 | | modifiers INTERFACE_TK identifier error |
0b4d333e | 1225 | {yyerror ("'{' expected"); RECOVER;} |
e04a16fb AG |
1226 | ; |
1227 | ||
1228 | extends_interfaces: | |
1229 | EXTENDS_TK interface_type | |
1230 | { | |
1231 | ctxp->interface_number = 1; | |
1232 | $$ = build_tree_list ($2, NULL_TREE); | |
1233 | } | |
1234 | | extends_interfaces C_TK interface_type | |
1235 | { | |
1236 | ctxp->interface_number++; | |
1237 | $$ = chainon ($1, build_tree_list ($3, NULL_TREE)); | |
1238 | } | |
1239 | | EXTENDS_TK error | |
1240 | {yyerror ("Invalid interface type"); RECOVER;} | |
1241 | | extends_interfaces C_TK error | |
1242 | {yyerror ("Missing term"); RECOVER;} | |
1243 | ; | |
1244 | ||
1245 | interface_body: | |
1246 | OCB_TK CCB_TK | |
1247 | { $$ = NULL_TREE; } | |
1248 | | OCB_TK interface_member_declarations CCB_TK | |
1249 | { $$ = NULL_TREE; } | |
1250 | ; | |
1251 | ||
1252 | interface_member_declarations: | |
1253 | interface_member_declaration | |
1254 | | interface_member_declarations interface_member_declaration | |
1255 | ; | |
1256 | ||
1257 | interface_member_declaration: | |
1258 | constant_declaration | |
1259 | | abstract_method_declaration | |
1260 | | class_declaration /* Added, JDK1.1 inner classes */ | |
c2952b01 APB |
1261 | { end_class_declaration (1); } |
1262 | | interface_declaration /* Added, JDK1.1 inner interfaces */ | |
1263 | { end_class_declaration (1); } | |
e04a16fb AG |
1264 | ; |
1265 | ||
1266 | constant_declaration: | |
1267 | field_declaration | |
1268 | ; | |
1269 | ||
1270 | abstract_method_declaration: | |
1271 | method_header SC_TK | |
1272 | { | |
1273 | check_abstract_method_header ($1); | |
1274 | current_function_decl = NULL_TREE; /* FIXME ? */ | |
1275 | } | |
1276 | | method_header error | |
1277 | {yyerror ("';' expected"); RECOVER;} | |
1278 | ; | |
1279 | ||
1280 | /* 19.10 Productions from 10: Arrays */ | |
1281 | array_initializer: | |
1282 | OCB_TK CCB_TK | |
1179ebc2 | 1283 | { $$ = build_new_array_init ($1.location, NULL_TREE); } |
e04a16fb | 1284 | | OCB_TK variable_initializers CCB_TK |
f8976021 | 1285 | { $$ = build_new_array_init ($1.location, $2); } |
e04a16fb | 1286 | | OCB_TK variable_initializers C_TK CCB_TK |
f8976021 | 1287 | { $$ = build_new_array_init ($1.location, $2); } |
e04a16fb AG |
1288 | ; |
1289 | ||
1290 | variable_initializers: | |
1291 | variable_initializer | |
f8976021 APB |
1292 | { |
1293 | $$ = tree_cons (maybe_build_array_element_wfl ($1), | |
1294 | $1, NULL_TREE); | |
1295 | } | |
e04a16fb | 1296 | | variable_initializers C_TK variable_initializer |
1179ebc2 APB |
1297 | { |
1298 | $$ = tree_cons (maybe_build_array_element_wfl ($3), $3, $1); | |
1299 | } | |
e04a16fb AG |
1300 | | variable_initializers C_TK error |
1301 | {yyerror ("Missing term"); RECOVER;} | |
1302 | ; | |
1303 | ||
1304 | /* 19.11 Production from 14: Blocks and Statements */ | |
1305 | block: | |
1306 | OCB_TK CCB_TK | |
7f10c2e2 APB |
1307 | { |
1308 | /* Store the location of the `}' when doing xrefs */ | |
1309 | if (current_function_decl && flag_emit_xref) | |
1310 | DECL_END_SOURCE_LINE (current_function_decl) = | |
1311 | EXPR_WFL_ADD_COL ($2.location, 1); | |
1312 | $$ = empty_stmt_node; | |
1313 | } | |
22eed1e6 APB |
1314 | | block_begin block_statements block_end |
1315 | { $$ = $3; } | |
1316 | ; | |
1317 | ||
1318 | block_begin: | |
1319 | OCB_TK | |
e04a16fb | 1320 | { enter_block (); } |
22eed1e6 APB |
1321 | ; |
1322 | ||
1323 | block_end: | |
e04a16fb AG |
1324 | CCB_TK |
1325 | { | |
1326 | maybe_absorb_scoping_blocks (); | |
7f10c2e2 APB |
1327 | /* Store the location of the `}' when doing xrefs */ |
1328 | if (current_function_decl && flag_emit_xref) | |
1329 | DECL_END_SOURCE_LINE (current_function_decl) = | |
1330 | EXPR_WFL_ADD_COL ($1.location, 1); | |
e04a16fb | 1331 | $$ = exit_block (); |
c280e37a APB |
1332 | if (!BLOCK_SUBBLOCKS ($$)) |
1333 | BLOCK_SUBBLOCKS ($$) = empty_stmt_node; | |
e04a16fb AG |
1334 | } |
1335 | ; | |
1336 | ||
1337 | block_statements: | |
1338 | block_statement | |
1339 | | block_statements block_statement | |
1340 | ; | |
1341 | ||
1342 | block_statement: | |
1343 | local_variable_declaration_statement | |
1344 | | statement | |
15fdcfe9 | 1345 | { java_method_add_stmt (current_function_decl, $1); } |
c2952b01 APB |
1346 | | class_declaration /* Added, JDK1.1 local classes */ |
1347 | { | |
1348 | LOCAL_CLASS_P (TREE_TYPE (GET_CPC ())) = 1; | |
1349 | end_class_declaration (1); | |
1350 | } | |
e04a16fb AG |
1351 | ; |
1352 | ||
1353 | local_variable_declaration_statement: | |
1354 | local_variable_declaration SC_TK /* Can't catch missing ';' here */ | |
1355 | ; | |
1356 | ||
1357 | local_variable_declaration: | |
1358 | type variable_declarators | |
1359 | { declare_local_variables (0, $1, $2); } | |
a003f638 | 1360 | | final type variable_declarators /* Added, JDK1.1 final locals */ |
e04a16fb AG |
1361 | { declare_local_variables ($1, $2, $3); } |
1362 | ; | |
1363 | ||
1364 | statement: | |
1365 | statement_without_trailing_substatement | |
1366 | | labeled_statement | |
e04a16fb | 1367 | | if_then_statement |
e04a16fb | 1368 | | if_then_else_statement |
e04a16fb | 1369 | | while_statement |
e04a16fb | 1370 | | for_statement |
cd9643f7 | 1371 | { $$ = exit_block (); } |
e04a16fb AG |
1372 | ; |
1373 | ||
1374 | statement_nsi: | |
1375 | statement_without_trailing_substatement | |
1376 | | labeled_statement_nsi | |
e04a16fb | 1377 | | if_then_else_statement_nsi |
e04a16fb | 1378 | | while_statement_nsi |
e04a16fb | 1379 | | for_statement_nsi |
9dd939b2 | 1380 | { $$ = exit_block (); } |
e04a16fb AG |
1381 | ; |
1382 | ||
1383 | statement_without_trailing_substatement: | |
1384 | block | |
e04a16fb | 1385 | | empty_statement |
e04a16fb | 1386 | | expression_statement |
e04a16fb | 1387 | | switch_statement |
e04a16fb | 1388 | | do_statement |
e04a16fb | 1389 | | break_statement |
e04a16fb | 1390 | | continue_statement |
e04a16fb AG |
1391 | | return_statement |
1392 | | synchronized_statement | |
e04a16fb | 1393 | | throw_statement |
e04a16fb | 1394 | | try_statement |
e04a16fb AG |
1395 | ; |
1396 | ||
1397 | empty_statement: | |
1398 | SC_TK | |
9bbc7d9f | 1399 | { $$ = empty_stmt_node; } |
e04a16fb AG |
1400 | ; |
1401 | ||
1402 | label_decl: | |
1403 | identifier REL_CL_TK | |
1404 | { | |
1405 | $$ = build_labeled_block (EXPR_WFL_LINECOL ($1), | |
0a2138e2 | 1406 | EXPR_WFL_NODE ($1)); |
e04a16fb AG |
1407 | pushlevel (2); |
1408 | push_labeled_block ($$); | |
1409 | PUSH_LABELED_BLOCK ($$); | |
1410 | } | |
1411 | ; | |
1412 | ||
1413 | labeled_statement: | |
1414 | label_decl statement | |
b635eb2f | 1415 | { $$ = finish_labeled_statement ($1, $2); } |
e04a16fb AG |
1416 | | identifier error |
1417 | {yyerror ("':' expected"); RECOVER;} | |
1418 | ; | |
1419 | ||
1420 | labeled_statement_nsi: | |
1421 | label_decl statement_nsi | |
b635eb2f | 1422 | { $$ = finish_labeled_statement ($1, $2); } |
e04a16fb AG |
1423 | ; |
1424 | ||
1425 | /* We concentrate here a bunch of error handling rules that we couldn't write | |
1426 | earlier, because expression_statement catches a missing ';'. */ | |
1427 | expression_statement: | |
1428 | statement_expression SC_TK | |
1429 | { | |
1430 | /* We have a statement. Generate a WFL around it so | |
1431 | we can debug it */ | |
1432 | $$ = build_expr_wfl ($1, input_filename, lineno, 0); | |
1433 | /* We know we have a statement, so set the debug | |
1434 | info to be eventually generate here. */ | |
1435 | $$ = JAVA_MAYBE_GENERATE_DEBUG_INFO ($$); | |
1436 | } | |
1437 | | error SC_TK | |
1438 | { | |
1439 | if (ctxp->prevent_ese != lineno) | |
1440 | yyerror ("Invalid expression statement"); | |
1441 | DRECOVER (expr_stmt); | |
1442 | } | |
1443 | | error OCB_TK | |
1444 | { | |
1445 | if (ctxp->prevent_ese != lineno) | |
1446 | yyerror ("Invalid expression statement"); | |
1447 | DRECOVER (expr_stmt); | |
1448 | } | |
1449 | | error CCB_TK | |
1450 | { | |
1451 | if (ctxp->prevent_ese != lineno) | |
1452 | yyerror ("Invalid expression statement"); | |
1453 | DRECOVER (expr_stmt); | |
1454 | } | |
1455 | | this_or_super OP_TK error | |
1456 | {yyerror ("')' expected"); RECOVER;} | |
1457 | | this_or_super OP_TK CP_TK error | |
22eed1e6 | 1458 | { |
8119c720 | 1459 | parse_ctor_invocation_error (); |
22eed1e6 APB |
1460 | RECOVER; |
1461 | } | |
e04a16fb AG |
1462 | | this_or_super OP_TK argument_list error |
1463 | {yyerror ("')' expected"); RECOVER;} | |
1464 | | this_or_super OP_TK argument_list CP_TK error | |
22eed1e6 | 1465 | { |
8119c720 | 1466 | parse_ctor_invocation_error (); |
22eed1e6 APB |
1467 | RECOVER; |
1468 | } | |
e04a16fb AG |
1469 | | name DOT_TK SUPER_TK error |
1470 | {yyerror ("'(' expected"); RECOVER;} | |
1471 | | name DOT_TK SUPER_TK OP_TK error | |
1472 | {yyerror ("')' expected"); RECOVER;} | |
1473 | | name DOT_TK SUPER_TK OP_TK argument_list error | |
1474 | {yyerror ("')' expected"); RECOVER;} | |
1475 | | name DOT_TK SUPER_TK OP_TK argument_list CP_TK error | |
1476 | {yyerror ("';' expected"); RECOVER;} | |
1477 | | name DOT_TK SUPER_TK OP_TK CP_TK error | |
1478 | {yyerror ("';' expected"); RECOVER;} | |
1479 | ; | |
1480 | ||
1481 | statement_expression: | |
1482 | assignment | |
1483 | | pre_increment_expression | |
e04a16fb | 1484 | | pre_decrement_expression |
e04a16fb | 1485 | | post_increment_expression |
e04a16fb | 1486 | | post_decrement_expression |
e04a16fb AG |
1487 | | method_invocation |
1488 | | class_instance_creation_expression | |
e04a16fb AG |
1489 | ; |
1490 | ||
1491 | if_then_statement: | |
1492 | IF_TK OP_TK expression CP_TK statement | |
2aa11e97 APB |
1493 | { |
1494 | $$ = build_if_else_statement ($2.location, $3, | |
1495 | $5, NULL_TREE); | |
1496 | } | |
e04a16fb AG |
1497 | | IF_TK error |
1498 | {yyerror ("'(' expected"); RECOVER;} | |
1499 | | IF_TK OP_TK error | |
1500 | {yyerror ("Missing term"); RECOVER;} | |
1501 | | IF_TK OP_TK expression error | |
1502 | {yyerror ("')' expected"); RECOVER;} | |
1503 | ; | |
1504 | ||
1505 | if_then_else_statement: | |
1506 | IF_TK OP_TK expression CP_TK statement_nsi ELSE_TK statement | |
2aa11e97 | 1507 | { $$ = build_if_else_statement ($2.location, $3, $5, $7); } |
e04a16fb AG |
1508 | ; |
1509 | ||
1510 | if_then_else_statement_nsi: | |
1511 | IF_TK OP_TK expression CP_TK statement_nsi ELSE_TK statement_nsi | |
2aa11e97 | 1512 | { $$ = build_if_else_statement ($2.location, $3, $5, $7); } |
e04a16fb AG |
1513 | ; |
1514 | ||
1515 | switch_statement: | |
15fdcfe9 PB |
1516 | switch_expression |
1517 | { | |
1518 | enter_block (); | |
1519 | } | |
1520 | switch_block | |
b67d701b | 1521 | { |
15fdcfe9 | 1522 | /* Make into "proper list" of COMPOUND_EXPRs. |
f8976021 APB |
1523 | I.e. make the last statment also have its own |
1524 | COMPOUND_EXPR. */ | |
15fdcfe9 PB |
1525 | maybe_absorb_scoping_blocks (); |
1526 | TREE_OPERAND ($1, 1) = exit_block (); | |
b67d701b PB |
1527 | $$ = build_debugable_stmt (EXPR_WFL_LINECOL ($1), $1); |
1528 | } | |
1529 | ; | |
1530 | ||
1531 | switch_expression: | |
1532 | SWITCH_TK OP_TK expression CP_TK | |
1533 | { | |
1534 | $$ = build (SWITCH_EXPR, NULL_TREE, $3, NULL_TREE); | |
1535 | EXPR_WFL_LINECOL ($$) = $2.location; | |
1536 | } | |
e04a16fb AG |
1537 | | SWITCH_TK error |
1538 | {yyerror ("'(' expected"); RECOVER;} | |
1539 | | SWITCH_TK OP_TK error | |
1540 | {yyerror ("Missing term or ')'"); DRECOVER(switch_statement);} | |
1541 | | SWITCH_TK OP_TK expression CP_TK error | |
1542 | {yyerror ("'{' expected"); RECOVER;} | |
1543 | ; | |
1544 | ||
f8976021 APB |
1545 | /* Default assignment is there to avoid type node on switch_block |
1546 | node. */ | |
1547 | ||
e04a16fb AG |
1548 | switch_block: |
1549 | OCB_TK CCB_TK | |
f8976021 | 1550 | { $$ = NULL_TREE; } |
e04a16fb | 1551 | | OCB_TK switch_labels CCB_TK |
f8976021 | 1552 | { $$ = NULL_TREE; } |
e04a16fb | 1553 | | OCB_TK switch_block_statement_groups CCB_TK |
f8976021 | 1554 | { $$ = NULL_TREE; } |
e04a16fb | 1555 | | OCB_TK switch_block_statement_groups switch_labels CCB_TK |
f8976021 | 1556 | { $$ = NULL_TREE; } |
e04a16fb AG |
1557 | ; |
1558 | ||
1559 | switch_block_statement_groups: | |
1560 | switch_block_statement_group | |
1561 | | switch_block_statement_groups switch_block_statement_group | |
1562 | ; | |
1563 | ||
1564 | switch_block_statement_group: | |
15fdcfe9 | 1565 | switch_labels block_statements |
e04a16fb AG |
1566 | ; |
1567 | ||
e04a16fb AG |
1568 | switch_labels: |
1569 | switch_label | |
1570 | | switch_labels switch_label | |
1571 | ; | |
1572 | ||
1573 | switch_label: | |
1574 | CASE_TK constant_expression REL_CL_TK | |
b67d701b | 1575 | { |
15fdcfe9 PB |
1576 | tree lab = build1 (CASE_EXPR, NULL_TREE, $2); |
1577 | EXPR_WFL_LINECOL (lab) = $1.location; | |
1578 | java_method_add_stmt (current_function_decl, lab); | |
b67d701b | 1579 | } |
e04a16fb | 1580 | | DEFAULT_TK REL_CL_TK |
b67d701b | 1581 | { |
15fdcfe9 PB |
1582 | tree lab = build1 (DEFAULT_EXPR, NULL_TREE, NULL_TREE); |
1583 | EXPR_WFL_LINECOL (lab) = $1.location; | |
1584 | java_method_add_stmt (current_function_decl, lab); | |
b67d701b | 1585 | } |
e04a16fb AG |
1586 | | CASE_TK error |
1587 | {yyerror ("Missing or invalid constant expression"); RECOVER;} | |
1588 | | CASE_TK constant_expression error | |
1589 | {yyerror ("':' expected"); RECOVER;} | |
1590 | | DEFAULT_TK error | |
1591 | {yyerror ("':' expected"); RECOVER;} | |
1592 | ; | |
1593 | ||
1594 | while_expression: | |
1595 | WHILE_TK OP_TK expression CP_TK | |
1596 | { | |
1597 | tree body = build_loop_body ($2.location, $3, 0); | |
1598 | $$ = build_new_loop (body); | |
1599 | } | |
1600 | ; | |
1601 | ||
1602 | while_statement: | |
1603 | while_expression statement | |
b635eb2f | 1604 | { $$ = finish_loop_body (0, NULL_TREE, $2, 0); } |
e04a16fb AG |
1605 | | WHILE_TK error |
1606 | {YYERROR_NOW; yyerror ("'(' expected"); RECOVER;} | |
1607 | | WHILE_TK OP_TK error | |
1608 | {yyerror ("Missing term and ')' expected"); RECOVER;} | |
1609 | | WHILE_TK OP_TK expression error | |
1610 | {yyerror ("')' expected"); RECOVER;} | |
1611 | ; | |
1612 | ||
1613 | while_statement_nsi: | |
1614 | while_expression statement_nsi | |
b635eb2f | 1615 | { $$ = finish_loop_body (0, NULL_TREE, $2, 0); } |
e04a16fb AG |
1616 | ; |
1617 | ||
1618 | do_statement_begin: | |
1619 | DO_TK | |
1620 | { | |
1621 | tree body = build_loop_body (0, NULL_TREE, 1); | |
1622 | $$ = build_new_loop (body); | |
1623 | } | |
1624 | /* Need error handing here. FIXME */ | |
1625 | ; | |
1626 | ||
1627 | do_statement: | |
1628 | do_statement_begin statement WHILE_TK OP_TK expression CP_TK SC_TK | |
b635eb2f | 1629 | { $$ = finish_loop_body ($4.location, $5, $2, 1); } |
e04a16fb AG |
1630 | ; |
1631 | ||
1632 | for_statement: | |
1633 | for_begin SC_TK expression SC_TK for_update CP_TK statement | |
b635eb2f | 1634 | { $$ = finish_for_loop (EXPR_WFL_LINECOL ($3), $3, $5, $7); } |
e04a16fb AG |
1635 | | for_begin SC_TK SC_TK for_update CP_TK statement |
1636 | { | |
b635eb2f | 1637 | $$ = finish_for_loop (0, NULL_TREE, $4, $6); |
e04a16fb AG |
1638 | /* We have not condition, so we get rid of the EXIT_EXPR */ |
1639 | LOOP_EXPR_BODY_CONDITION_EXPR (LOOP_EXPR_BODY ($$), 0) = | |
9bbc7d9f | 1640 | empty_stmt_node; |
e04a16fb AG |
1641 | } |
1642 | | for_begin SC_TK error | |
1643 | {yyerror ("Invalid control expression"); RECOVER;} | |
1644 | | for_begin SC_TK expression SC_TK error | |
1645 | {yyerror ("Invalid update expression"); RECOVER;} | |
1646 | | for_begin SC_TK SC_TK error | |
1647 | {yyerror ("Invalid update expression"); RECOVER;} | |
1648 | ; | |
1649 | ||
1650 | for_statement_nsi: | |
1651 | for_begin SC_TK expression SC_TK for_update CP_TK statement_nsi | |
b635eb2f | 1652 | { $$ = finish_for_loop (EXPR_WFL_LINECOL ($3), $3, $5, $7);} |
e04a16fb AG |
1653 | | for_begin SC_TK SC_TK for_update CP_TK statement_nsi |
1654 | { | |
b635eb2f | 1655 | $$ = finish_for_loop (0, NULL_TREE, $4, $6); |
e04a16fb AG |
1656 | /* We have not condition, so we get rid of the EXIT_EXPR */ |
1657 | LOOP_EXPR_BODY_CONDITION_EXPR (LOOP_EXPR_BODY ($$), 0) = | |
9bbc7d9f | 1658 | empty_stmt_node; |
e04a16fb AG |
1659 | } |
1660 | ; | |
1661 | ||
1662 | for_header: | |
1663 | FOR_TK OP_TK | |
1664 | { | |
1665 | /* This scope defined for local variable that may be | |
1666 | defined within the scope of the for loop */ | |
1667 | enter_block (); | |
1668 | } | |
1669 | | FOR_TK error | |
1670 | {yyerror ("'(' expected"); DRECOVER(for_1);} | |
1671 | | FOR_TK OP_TK error | |
1672 | {yyerror ("Invalid init statement"); RECOVER;} | |
1673 | ; | |
1674 | ||
1675 | for_begin: | |
1676 | for_header for_init | |
1677 | { | |
1678 | /* We now declare the loop body. The loop is | |
1679 | declared as a for loop. */ | |
1680 | tree body = build_loop_body (0, NULL_TREE, 0); | |
1681 | $$ = build_new_loop (body); | |
c2952b01 | 1682 | FOR_LOOP_P ($$) = 1; |
e04a16fb AG |
1683 | /* The loop is added to the current block the for |
1684 | statement is defined within */ | |
1685 | java_method_add_stmt (current_function_decl, $$); | |
1686 | } | |
1687 | ; | |
1688 | for_init: /* Can be empty */ | |
9bbc7d9f | 1689 | { $$ = empty_stmt_node; } |
e04a16fb AG |
1690 | | statement_expression_list |
1691 | { | |
1692 | /* Init statement recorded within the previously | |
1693 | defined block scope */ | |
1694 | $$ = java_method_add_stmt (current_function_decl, $1); | |
1695 | } | |
1696 | | local_variable_declaration | |
1697 | { | |
1698 | /* Local variable are recorded within the previously | |
1699 | defined block scope */ | |
1700 | $$ = NULL_TREE; | |
1701 | } | |
1702 | | statement_expression_list error | |
1703 | {yyerror ("';' expected"); DRECOVER(for_init_1);} | |
1704 | ; | |
1705 | ||
1706 | for_update: /* Can be empty */ | |
9bbc7d9f | 1707 | {$$ = empty_stmt_node;} |
e04a16fb AG |
1708 | | statement_expression_list |
1709 | { $$ = build_debugable_stmt (BUILD_LOCATION (), $1); } | |
1710 | ; | |
1711 | ||
1712 | statement_expression_list: | |
1713 | statement_expression | |
1714 | { $$ = add_stmt_to_compound (NULL_TREE, NULL_TREE, $1); } | |
1715 | | statement_expression_list C_TK statement_expression | |
1716 | { $$ = add_stmt_to_compound ($1, NULL_TREE, $3); } | |
1717 | | statement_expression_list C_TK error | |
1718 | {yyerror ("Missing term"); RECOVER;} | |
1719 | ; | |
1720 | ||
1721 | break_statement: | |
1722 | BREAK_TK SC_TK | |
1723 | { $$ = build_bc_statement ($1.location, 1, NULL_TREE); } | |
1724 | | BREAK_TK identifier SC_TK | |
1725 | { $$ = build_bc_statement ($1.location, 1, $2); } | |
1726 | | BREAK_TK error | |
1727 | {yyerror ("Missing term"); RECOVER;} | |
1728 | | BREAK_TK identifier error | |
1729 | {yyerror ("';' expected"); RECOVER;} | |
1730 | ; | |
1731 | ||
1732 | continue_statement: | |
1733 | CONTINUE_TK SC_TK | |
1734 | { $$ = build_bc_statement ($1.location, 0, NULL_TREE); } | |
1735 | | CONTINUE_TK identifier SC_TK | |
1736 | { $$ = build_bc_statement ($1.location, 0, $2); } | |
1737 | | CONTINUE_TK error | |
1738 | {yyerror ("Missing term"); RECOVER;} | |
1739 | | CONTINUE_TK identifier error | |
1740 | {yyerror ("';' expected"); RECOVER;} | |
1741 | ; | |
1742 | ||
1743 | return_statement: | |
1744 | RETURN_TK SC_TK | |
1745 | { $$ = build_return ($1.location, NULL_TREE); } | |
1746 | | RETURN_TK expression SC_TK | |
1747 | { $$ = build_return ($1.location, $2); } | |
1748 | | RETURN_TK error | |
1749 | {yyerror ("Missing term"); RECOVER;} | |
1750 | | RETURN_TK expression error | |
1751 | {yyerror ("';' expected"); RECOVER;} | |
1752 | ; | |
1753 | ||
1754 | throw_statement: | |
1755 | THROW_TK expression SC_TK | |
b9f7e36c APB |
1756 | { |
1757 | $$ = build1 (THROW_EXPR, NULL_TREE, $2); | |
1758 | EXPR_WFL_LINECOL ($$) = $1.location; | |
1759 | } | |
e04a16fb AG |
1760 | | THROW_TK error |
1761 | {yyerror ("Missing term"); RECOVER;} | |
1762 | | THROW_TK expression error | |
1763 | {yyerror ("';' expected"); RECOVER;} | |
1764 | ; | |
1765 | ||
1766 | synchronized_statement: | |
1767 | synchronized OP_TK expression CP_TK block | |
b9f7e36c APB |
1768 | { |
1769 | $$ = build (SYNCHRONIZED_EXPR, NULL_TREE, $3, $5); | |
1770 | EXPR_WFL_LINECOL ($$) = | |
1771 | EXPR_WFL_LINECOL (MODIFIER_WFL (SYNCHRONIZED_TK)); | |
1772 | } | |
e04a16fb AG |
1773 | | synchronized OP_TK expression CP_TK error |
1774 | {yyerror ("'{' expected"); RECOVER;} | |
1775 | | synchronized error | |
1776 | {yyerror ("'(' expected"); RECOVER;} | |
1777 | | synchronized OP_TK error CP_TK | |
1778 | {yyerror ("Missing term"); RECOVER;} | |
1779 | | synchronized OP_TK error | |
1780 | {yyerror ("Missing term"); RECOVER;} | |
1781 | ; | |
1782 | ||
b9f7e36c | 1783 | synchronized: |
efa0a23f | 1784 | modifiers |
e04a16fb | 1785 | { |
781b0558 KG |
1786 | check_modifiers ( |
1787 | "Illegal modifier `%s'. Only `synchronized' was expected here", | |
efa0a23f APB |
1788 | $1, ACC_SYNCHRONIZED); |
1789 | if ($1 != ACC_SYNCHRONIZED) | |
1790 | MODIFIER_WFL (SYNCHRONIZED_TK) = | |
1791 | build_wfl_node (NULL_TREE); | |
e04a16fb AG |
1792 | } |
1793 | ; | |
1794 | ||
1795 | try_statement: | |
1796 | TRY_TK block catches | |
a7d8d81f | 1797 | { $$ = build_try_statement ($1.location, $2, $3); } |
e04a16fb | 1798 | | TRY_TK block finally |
a7d8d81f | 1799 | { $$ = build_try_finally_statement ($1.location, $2, $3); } |
e04a16fb | 1800 | | TRY_TK block catches finally |
2aa11e97 APB |
1801 | { $$ = build_try_finally_statement |
1802 | ($1.location, build_try_statement ($1.location, | |
1803 | $2, $3), $4); | |
1804 | } | |
e04a16fb AG |
1805 | | TRY_TK error |
1806 | {yyerror ("'{' expected"); DRECOVER (try_statement);} | |
1807 | ; | |
1808 | ||
1809 | catches: | |
1810 | catch_clause | |
1811 | | catches catch_clause | |
b67d701b PB |
1812 | { |
1813 | TREE_CHAIN ($2) = $1; | |
1814 | $$ = $2; | |
1815 | } | |
e04a16fb AG |
1816 | ; |
1817 | ||
1818 | catch_clause: | |
b67d701b PB |
1819 | catch_clause_parameter block |
1820 | { | |
1821 | java_method_add_stmt (current_function_decl, $2); | |
1822 | exit_block (); | |
1823 | $$ = $1; | |
1824 | } | |
1825 | ||
1826 | catch_clause_parameter: | |
1827 | CATCH_TK OP_TK formal_parameter CP_TK | |
1828 | { | |
1829 | /* We add a block to define a scope for | |
1830 | formal_parameter (CCBP). The formal parameter is | |
1831 | declared initialized by the appropriate function | |
1832 | call */ | |
1833 | tree ccpb = enter_block (); | |
1834 | tree init = build_assignment (ASSIGN_TK, $2.location, | |
1835 | TREE_PURPOSE ($3), | |
1836 | soft_exceptioninfo_call_node); | |
1837 | declare_local_variables (0, TREE_VALUE ($3), | |
1838 | build_tree_list (TREE_PURPOSE ($3), | |
1839 | init)); | |
1840 | $$ = build1 (CATCH_EXPR, NULL_TREE, ccpb); | |
1841 | EXPR_WFL_LINECOL ($$) = $1.location; | |
1842 | } | |
e04a16fb | 1843 | | CATCH_TK error |
97f30284 | 1844 | {yyerror ("'(' expected"); RECOVER; $$ = NULL_TREE;} |
e04a16fb | 1845 | | CATCH_TK OP_TK error |
97f30284 APB |
1846 | { |
1847 | yyerror ("Missing term or ')' expected"); | |
1848 | RECOVER; $$ = NULL_TREE; | |
1849 | } | |
b67d701b | 1850 | | CATCH_TK OP_TK error CP_TK /* That's for () */ |
97f30284 | 1851 | {yyerror ("Missing term"); RECOVER; $$ = NULL_TREE;} |
e04a16fb AG |
1852 | ; |
1853 | ||
1854 | finally: | |
1855 | FINALLY_TK block | |
a7d8d81f | 1856 | { $$ = $2; } |
e04a16fb AG |
1857 | | FINALLY_TK error |
1858 | {yyerror ("'{' expected"); RECOVER; } | |
1859 | ; | |
1860 | ||
1861 | /* 19.12 Production from 15: Expressions */ | |
1862 | primary: | |
1863 | primary_no_new_array | |
1864 | | array_creation_expression | |
1865 | ; | |
1866 | ||
1867 | primary_no_new_array: | |
1868 | literal | |
1869 | | THIS_TK | |
1870 | { $$ = build_this ($1.location); } | |
1871 | | OP_TK expression CP_TK | |
1872 | {$$ = $2;} | |
1873 | | class_instance_creation_expression | |
1874 | | field_access | |
1875 | | method_invocation | |
1876 | | array_access | |
c2952b01 | 1877 | | type_literals |
e04a16fb AG |
1878 | /* Added, JDK1.1 inner classes. Documentation is wrong |
1879 | refering to a 'ClassName' (class_name) rule that doesn't | |
c2952b01 | 1880 | exist. Used name: instead. */ |
e04a16fb | 1881 | | name DOT_TK THIS_TK |
c2952b01 APB |
1882 | { |
1883 | tree wfl = build_wfl_node (this_identifier_node); | |
1884 | $$ = make_qualified_primary ($1, wfl, EXPR_WFL_LINECOL ($1)); | |
1885 | } | |
e04a16fb AG |
1886 | | OP_TK expression error |
1887 | {yyerror ("')' expected"); RECOVER;} | |
1888 | | name DOT_TK error | |
1889 | {yyerror ("'class' or 'this' expected" ); RECOVER;} | |
1890 | | primitive_type DOT_TK error | |
1891 | {yyerror ("'class' expected" ); RECOVER;} | |
1892 | | VOID_TK DOT_TK error | |
1893 | {yyerror ("'class' expected" ); RECOVER;} | |
1894 | ; | |
1895 | ||
c2952b01 APB |
1896 | /* Added, JDK1.1 type literals. We can't use `type' directly, so we |
1897 | broke the rule down a bit. */ | |
1898 | ||
1899 | array_type_literal: | |
1900 | primitive_type OSB_TK CSB_TK | |
1901 | { | |
1902 | $$ = build_java_array_type ($1, -1); | |
1903 | CLASS_LOADED_P ($$) = 1; | |
1904 | } | |
1905 | | name OSB_TK CSB_TK | |
1906 | { $$ = build_unresolved_array_type ($1); } | |
1907 | /* This triggers two reduce/reduce conflict between array_type_literal and | |
1908 | dims. FIXME. | |
1909 | | array_type OSB_TK CSB_TK | |
1910 | { $$ = build_unresolved_array_type ($1); } | |
1911 | */ | |
1912 | ; | |
1913 | ||
1914 | type_literals: | |
1915 | name DOT_TK CLASS_TK | |
1916 | { $$ = build_incomplete_class_ref ($2.location, $1); } | |
1917 | | array_type_literal DOT_TK CLASS_TK | |
1918 | { $$ = build_incomplete_class_ref ($2.location, $1); } | |
1919 | | primitive_type DOT_TK CLASS_TK | |
1920 | { $$ = build_class_ref ($1); } | |
1921 | | VOID_TK DOT_TK CLASS_TK | |
1922 | { $$ = build_class_ref (void_type_node); } | |
1923 | ; | |
1924 | ||
e04a16fb AG |
1925 | class_instance_creation_expression: |
1926 | NEW_TK class_type OP_TK argument_list CP_TK | |
b67d701b | 1927 | { $$ = build_new_invocation ($2, $4); } |
e04a16fb | 1928 | | NEW_TK class_type OP_TK CP_TK |
b67d701b | 1929 | { $$ = build_new_invocation ($2, NULL_TREE); } |
c2952b01 | 1930 | | anonymous_class_creation |
e04a16fb AG |
1931 | /* Added, JDK1.1 inner classes, modified to use name or |
1932 | primary instead of primary solely which couldn't work in | |
1933 | all situations. */ | |
1934 | | something_dot_new identifier OP_TK CP_TK | |
c2952b01 APB |
1935 | { |
1936 | tree ctor = build_new_invocation ($2, NULL_TREE); | |
1937 | $$ = make_qualified_primary ($1, ctor, | |
1938 | EXPR_WFL_LINECOL ($1)); | |
1939 | } | |
e04a16fb AG |
1940 | | something_dot_new identifier OP_TK CP_TK class_body |
1941 | | something_dot_new identifier OP_TK argument_list CP_TK | |
c2952b01 APB |
1942 | { |
1943 | tree ctor = build_new_invocation ($2, $4); | |
1944 | $$ = make_qualified_primary ($1, ctor, | |
1945 | EXPR_WFL_LINECOL ($1)); | |
1946 | } | |
e04a16fb AG |
1947 | | something_dot_new identifier OP_TK argument_list CP_TK class_body |
1948 | | NEW_TK error SC_TK | |
1949 | {yyerror ("'(' expected"); DRECOVER(new_1);} | |
1950 | | NEW_TK class_type error | |
1951 | {yyerror ("'(' expected"); RECOVER;} | |
1952 | | NEW_TK class_type OP_TK error | |
1953 | {yyerror ("')' or term expected"); RECOVER;} | |
1954 | | NEW_TK class_type OP_TK argument_list error | |
1955 | {yyerror ("')' expected"); RECOVER;} | |
1956 | | something_dot_new error | |
1957 | {YYERROR_NOW; yyerror ("Identifier expected"); RECOVER;} | |
1958 | | something_dot_new identifier error | |
1959 | {yyerror ("'(' expected"); RECOVER;} | |
1960 | ; | |
1961 | ||
c2952b01 APB |
1962 | /* Created after JDK1.1 rules originally added to |
1963 | class_instance_creation_expression, but modified to use | |
1964 | 'class_type' instead of 'TypeName' (type_name) which is mentionned | |
1965 | in the documentation but doesn't exist. */ | |
1966 | ||
1967 | anonymous_class_creation: | |
1968 | NEW_TK class_type OP_TK argument_list CP_TK | |
1969 | { create_anonymous_class ($1.location, $2); } | |
1970 | class_body | |
1971 | { | |
1972 | tree id = build_wfl_node (DECL_NAME (GET_CPC ())); | |
1973 | EXPR_WFL_LINECOL (id) = EXPR_WFL_LINECOL ($2); | |
1974 | ||
1975 | end_class_declaration (1); | |
1976 | ||
1977 | /* Now we can craft the new expression */ | |
1978 | $$ = build_new_invocation (id, $4); | |
1979 | ||
1980 | /* Note that we can't possibly be here if | |
1981 | `class_type' is an interface (in which case the | |
1982 | anonymous class extends Object and implements | |
1983 | `class_type', hence its constructor can't have | |
1984 | arguments.) */ | |
1985 | ||
1986 | /* Otherwise, the innerclass must feature a | |
1987 | constructor matching `argument_list'. Anonymous | |
1988 | classes are a bit special: it's impossible to | |
1989 | define constructor for them, hence constructors | |
1990 | must be generated following the hints provided by | |
1991 | the `new' expression. Whether a super constructor | |
1992 | of that nature exists or not is to be verified | |
1993 | later on in verify_constructor_super. | |
1994 | ||
1995 | It's during the expansion of a `new' statement | |
1996 | refering to an anonymous class that a ctor will | |
1997 | be generated for the anonymous class, with the | |
1998 | right arguments. */ | |
1999 | ||
2000 | } | |
2001 | | NEW_TK class_type OP_TK CP_TK | |
2002 | { create_anonymous_class ($1.location, $2); } | |
2003 | class_body | |
2004 | { | |
2005 | tree id = build_wfl_node (DECL_NAME (GET_CPC ())); | |
2006 | EXPR_WFL_LINECOL (id) = EXPR_WFL_LINECOL ($2); | |
2007 | ||
2008 | end_class_declaration (1); | |
2009 | ||
2010 | /* Now we can craft the new expression. The | |
2011 | statement doesn't need to be remember so that a | |
2012 | constructor can be generated, since its signature | |
2013 | is already known. */ | |
2014 | $$ = build_new_invocation (id, NULL_TREE); | |
2015 | } | |
2016 | ; | |
2017 | ||
e04a16fb AG |
2018 | something_dot_new: /* Added, not part of the specs. */ |
2019 | name DOT_TK NEW_TK | |
c2952b01 | 2020 | { $$ = $1; } |
e04a16fb | 2021 | | primary DOT_TK NEW_TK |
c2952b01 | 2022 | { $$ = $1; } |
e04a16fb AG |
2023 | ; |
2024 | ||
2025 | argument_list: | |
2026 | expression | |
2027 | { | |
2028 | $$ = tree_cons (NULL_TREE, $1, NULL_TREE); | |
2029 | ctxp->formal_parameter_number = 1; | |
2030 | } | |
2031 | | argument_list C_TK expression | |
2032 | { | |
2033 | ctxp->formal_parameter_number += 1; | |
2034 | $$ = tree_cons (NULL_TREE, $3, $1); | |
2035 | } | |
2036 | | argument_list C_TK error | |
2037 | {yyerror ("Missing term"); RECOVER;} | |
2038 | ; | |
2039 | ||
2040 | array_creation_expression: | |
2041 | NEW_TK primitive_type dim_exprs | |
2042 | { $$ = build_newarray_node ($2, $3, 0); } | |
2043 | | NEW_TK class_or_interface_type dim_exprs | |
2044 | { $$ = build_newarray_node ($2, $3, 0); } | |
2045 | | NEW_TK primitive_type dim_exprs dims | |
ba179f9f | 2046 | { $$ = build_newarray_node ($2, $3, CURRENT_OSB (ctxp));} |
e04a16fb | 2047 | | NEW_TK class_or_interface_type dim_exprs dims |
ba179f9f | 2048 | { $$ = build_newarray_node ($2, $3, CURRENT_OSB (ctxp));} |
e04a16fb AG |
2049 | /* Added, JDK1.1 anonymous array. Initial documentation rule |
2050 | modified */ | |
2051 | | NEW_TK class_or_interface_type dims array_initializer | |
c2952b01 APB |
2052 | { |
2053 | char *sig; | |
2054 | while (CURRENT_OSB (ctxp)--) | |
2055 | obstack_1grow (&temporary_obstack, '['); | |
2056 | sig = obstack_finish (&temporary_obstack); | |
2057 | $$ = build (NEW_ANONYMOUS_ARRAY_EXPR, NULL_TREE, | |
2058 | $2, get_identifier (sig), $4); | |
2059 | } | |
e04a16fb | 2060 | | NEW_TK primitive_type dims array_initializer |
c2952b01 APB |
2061 | { |
2062 | tree type = $2; | |
2063 | while (CURRENT_OSB (ctxp)--) | |
2064 | type = build_java_array_type (type, -1); | |
2065 | $$ = build (NEW_ANONYMOUS_ARRAY_EXPR, NULL_TREE, | |
2066 | build_pointer_type (type), NULL_TREE, $4); | |
2067 | } | |
e04a16fb AG |
2068 | | NEW_TK error CSB_TK |
2069 | {yyerror ("'[' expected"); DRECOVER ("]");} | |
2070 | | NEW_TK error OSB_TK | |
2071 | {yyerror ("']' expected"); RECOVER;} | |
2072 | ; | |
2073 | ||
2074 | dim_exprs: | |
2075 | dim_expr | |
2076 | { $$ = build_tree_list (NULL_TREE, $1); } | |
2077 | | dim_exprs dim_expr | |
2078 | { $$ = tree_cons (NULL_TREE, $2, $$); } | |
2079 | ; | |
2080 | ||
2081 | dim_expr: | |
2082 | OSB_TK expression CSB_TK | |
2083 | { | |
9a7ab4b3 APB |
2084 | if (JNUMERIC_TYPE_P (TREE_TYPE ($2))) |
2085 | { | |
2086 | $2 = build_wfl_node ($2); | |
2087 | TREE_TYPE ($2) = NULL_TREE; | |
2088 | } | |
e04a16fb AG |
2089 | EXPR_WFL_LINECOL ($2) = $1.location; |
2090 | $$ = $2; | |
2091 | } | |
2092 | | OSB_TK expression error | |
2093 | {yyerror ("']' expected"); RECOVER;} | |
2094 | | OSB_TK error | |
2095 | { | |
2096 | yyerror ("Missing term"); | |
2097 | yyerror ("']' expected"); | |
2098 | RECOVER; | |
2099 | } | |
2100 | ; | |
2101 | ||
2102 | dims: | |
2103 | OSB_TK CSB_TK | |
ba179f9f APB |
2104 | { |
2105 | int allocate = 0; | |
2106 | /* If not initialized, allocate memory for the osb | |
2107 | numbers stack */ | |
2108 | if (!ctxp->osb_limit) | |
2109 | { | |
2110 | allocate = ctxp->osb_limit = 32; | |
2111 | ctxp->osb_depth = -1; | |
2112 | } | |
c2952b01 | 2113 | /* If capacity overflown, reallocate a bigger chunk */ |
ba179f9f APB |
2114 | else if (ctxp->osb_depth+1 == ctxp->osb_limit) |
2115 | allocate = ctxp->osb_limit << 1; | |
2116 | ||
2117 | if (allocate) | |
2118 | { | |
2119 | allocate *= sizeof (int); | |
2120 | if (ctxp->osb_number) | |
2121 | ctxp->osb_number = (int *)xrealloc (ctxp->osb_number, | |
2122 | allocate); | |
2123 | else | |
2124 | ctxp->osb_number = (int *)xmalloc (allocate); | |
2125 | } | |
2126 | ctxp->osb_depth++; | |
2127 | CURRENT_OSB (ctxp) = 1; | |
2128 | } | |
e04a16fb | 2129 | | dims OSB_TK CSB_TK |
ba179f9f | 2130 | { CURRENT_OSB (ctxp)++; } |
e04a16fb AG |
2131 | | dims OSB_TK error |
2132 | { yyerror ("']' expected"); RECOVER;} | |
2133 | ; | |
2134 | ||
2135 | field_access: | |
2136 | primary DOT_TK identifier | |
2137 | { $$ = make_qualified_primary ($1, $3, $2.location); } | |
9bbc7d9f PB |
2138 | /* FIXME - REWRITE TO: |
2139 | { $$ = build_binop (COMPONENT_REF, $2.location, $1, $3); } */ | |
e04a16fb AG |
2140 | | SUPER_TK DOT_TK identifier |
2141 | { | |
2142 | tree super_wfl = | |
9ee9b555 | 2143 | build_wfl_node (super_identifier_node); |
e04a16fb AG |
2144 | EXPR_WFL_LINECOL (super_wfl) = $1.location; |
2145 | $$ = make_qualified_name (super_wfl, $3, $2.location); | |
2146 | } | |
2147 | | SUPER_TK error | |
2148 | {yyerror ("Field expected"); DRECOVER (super_field_acces);} | |
2149 | ; | |
2150 | ||
2151 | method_invocation: | |
2152 | name OP_TK CP_TK | |
2153 | { $$ = build_method_invocation ($1, NULL_TREE); } | |
2154 | | name OP_TK argument_list CP_TK | |
2155 | { $$ = build_method_invocation ($1, $3); } | |
2156 | | primary DOT_TK identifier OP_TK CP_TK | |
2157 | { | |
22eed1e6 APB |
2158 | if (TREE_CODE ($1) == THIS_EXPR) |
2159 | $$ = build_this_super_qualified_invocation | |
2160 | (1, $3, NULL_TREE, 0, $2.location); | |
2161 | else | |
2162 | { | |
2163 | tree invok = build_method_invocation ($3, NULL_TREE); | |
2164 | $$ = make_qualified_primary ($1, invok, $2.location); | |
2165 | } | |
e04a16fb AG |
2166 | } |
2167 | | primary DOT_TK identifier OP_TK argument_list CP_TK | |
2168 | { | |
22eed1e6 APB |
2169 | if (TREE_CODE ($1) == THIS_EXPR) |
2170 | $$ = build_this_super_qualified_invocation | |
2171 | (1, $3, $5, 0, $2.location); | |
2172 | else | |
2173 | { | |
2174 | tree invok = build_method_invocation ($3, $5); | |
2175 | $$ = make_qualified_primary ($1, invok, $2.location); | |
2176 | } | |
e04a16fb AG |
2177 | } |
2178 | | SUPER_TK DOT_TK identifier OP_TK CP_TK | |
22eed1e6 APB |
2179 | { |
2180 | $$ = build_this_super_qualified_invocation | |
2181 | (0, $3, NULL_TREE, $1.location, $2.location); | |
e04a16fb AG |
2182 | } |
2183 | | SUPER_TK DOT_TK identifier OP_TK argument_list CP_TK | |
2184 | { | |
22eed1e6 APB |
2185 | $$ = build_this_super_qualified_invocation |
2186 | (0, $3, $5, $1.location, $2.location); | |
e04a16fb AG |
2187 | } |
2188 | /* Screws up thing. I let it here until I'm convinced it can | |
2189 | be removed. FIXME | |
2190 | | primary DOT_TK error | |
2191 | {yyerror ("'(' expected"); DRECOVER(bad);} */ | |
2192 | | SUPER_TK DOT_TK error CP_TK | |
2193 | { yyerror ("'(' expected"); DRECOVER (method_invocation); } | |
2194 | | SUPER_TK DOT_TK error DOT_TK | |
2195 | { yyerror ("'(' expected"); DRECOVER (method_invocation); } | |
2196 | ; | |
2197 | ||
2198 | array_access: | |
2199 | name OSB_TK expression CSB_TK | |
2200 | { $$ = build_array_ref ($2.location, $1, $3); } | |
2201 | | primary_no_new_array OSB_TK expression CSB_TK | |
2202 | { $$ = build_array_ref ($2.location, $1, $3); } | |
2203 | | name OSB_TK error | |
2204 | { | |
2205 | yyerror ("Missing term and ']' expected"); | |
2206 | DRECOVER(array_access); | |
2207 | } | |
2208 | | name OSB_TK expression error | |
2209 | { | |
2210 | yyerror ("']' expected"); | |
2211 | DRECOVER(array_access); | |
2212 | } | |
2213 | | primary_no_new_array OSB_TK error | |
2214 | { | |
2215 | yyerror ("Missing term and ']' expected"); | |
2216 | DRECOVER(array_access); | |
2217 | } | |
2218 | | primary_no_new_array OSB_TK expression error | |
2219 | { | |
2220 | yyerror ("']' expected"); | |
2221 | DRECOVER(array_access); | |
2222 | } | |
2223 | ; | |
2224 | ||
2225 | postfix_expression: | |
2226 | primary | |
2227 | | name | |
2228 | | post_increment_expression | |
2229 | | post_decrement_expression | |
2230 | ; | |
2231 | ||
2232 | post_increment_expression: | |
2233 | postfix_expression INCR_TK | |
2234 | { $$ = build_incdec ($2.token, $2.location, $1, 1); } | |
2235 | ; | |
2236 | ||
2237 | post_decrement_expression: | |
2238 | postfix_expression DECR_TK | |
2239 | { $$ = build_incdec ($2.token, $2.location, $1, 1); } | |
2240 | ; | |
2241 | ||
2242 | unary_expression: | |
2243 | pre_increment_expression | |
2244 | | pre_decrement_expression | |
2245 | | PLUS_TK unary_expression | |
2246 | {$$ = build_unaryop ($1.token, $1.location, $2); } | |
2247 | | MINUS_TK unary_expression | |
2248 | {$$ = build_unaryop ($1.token, $1.location, $2); } | |
2249 | | unary_expression_not_plus_minus | |
2250 | | PLUS_TK error | |
2251 | {yyerror ("Missing term"); RECOVER} | |
2252 | | MINUS_TK error | |
2253 | {yyerror ("Missing term"); RECOVER} | |
2254 | ; | |
2255 | ||
2256 | pre_increment_expression: | |
2257 | INCR_TK unary_expression | |
2258 | {$$ = build_incdec ($1.token, $1.location, $2, 0); } | |
2259 | | INCR_TK error | |
2260 | {yyerror ("Missing term"); RECOVER} | |
2261 | ; | |
2262 | ||
2263 | pre_decrement_expression: | |
2264 | DECR_TK unary_expression | |
2265 | {$$ = build_incdec ($1.token, $1.location, $2, 0); } | |
2266 | | DECR_TK error | |
2267 | {yyerror ("Missing term"); RECOVER} | |
2268 | ; | |
2269 | ||
2270 | unary_expression_not_plus_minus: | |
2271 | postfix_expression | |
2272 | | NOT_TK unary_expression | |
2273 | {$$ = build_unaryop ($1.token, $1.location, $2); } | |
2274 | | NEG_TK unary_expression | |
2275 | {$$ = build_unaryop ($1.token, $1.location, $2); } | |
2276 | | cast_expression | |
2277 | | NOT_TK error | |
2278 | {yyerror ("Missing term"); RECOVER} | |
2279 | | NEG_TK error | |
2280 | {yyerror ("Missing term"); RECOVER} | |
2281 | ; | |
2282 | ||
2283 | cast_expression: /* Error handling here is potentially weak */ | |
2284 | OP_TK primitive_type dims CP_TK unary_expression | |
2285 | { | |
2286 | tree type = $2; | |
ba179f9f | 2287 | while (CURRENT_OSB (ctxp)--) |
e04a16fb | 2288 | type = build_java_array_type (type, -1); |
ba179f9f | 2289 | ctxp->osb_depth--; |
e04a16fb AG |
2290 | $$ = build_cast ($1.location, type, $5); |
2291 | } | |
2292 | | OP_TK primitive_type CP_TK unary_expression | |
2293 | { $$ = build_cast ($1.location, $2, $4); } | |
2294 | | OP_TK expression CP_TK unary_expression_not_plus_minus | |
2295 | { $$ = build_cast ($1.location, $2, $4); } | |
2296 | | OP_TK name dims CP_TK unary_expression_not_plus_minus | |
2297 | { | |
49f48c71 | 2298 | const char *ptr; |
ba179f9f | 2299 | while (CURRENT_OSB (ctxp)--) |
e04a16fb | 2300 | obstack_1grow (&temporary_obstack, '['); |
ba179f9f | 2301 | ctxp->osb_depth--; |
e04a16fb AG |
2302 | obstack_grow0 (&temporary_obstack, |
2303 | IDENTIFIER_POINTER (EXPR_WFL_NODE ($2)), | |
2304 | IDENTIFIER_LENGTH (EXPR_WFL_NODE ($2))); | |
2305 | ptr = obstack_finish (&temporary_obstack); | |
2306 | EXPR_WFL_NODE ($2) = get_identifier (ptr); | |
2307 | $$ = build_cast ($1.location, $2, $5); | |
2308 | } | |
2309 | | OP_TK primitive_type OSB_TK error | |
2310 | {yyerror ("']' expected, invalid type expression");} | |
2311 | | OP_TK error | |
2312 | { | |
2313 | if (ctxp->prevent_ese != lineno) | |
2314 | yyerror ("Invalid type expression"); RECOVER; | |
2315 | RECOVER; | |
2316 | } | |
2317 | | OP_TK primitive_type dims CP_TK error | |
2318 | {yyerror ("Missing term"); RECOVER;} | |
2319 | | OP_TK primitive_type CP_TK error | |
2320 | {yyerror ("Missing term"); RECOVER;} | |
2321 | | OP_TK name dims CP_TK error | |
2322 | {yyerror ("Missing term"); RECOVER;} | |
2323 | ; | |
2324 | ||
2325 | multiplicative_expression: | |
2326 | unary_expression | |
2327 | | multiplicative_expression MULT_TK unary_expression | |
2328 | { | |
2329 | $$ = build_binop (BINOP_LOOKUP ($2.token), | |
2330 | $2.location, $1, $3); | |
2331 | } | |
2332 | | multiplicative_expression DIV_TK unary_expression | |
2333 | { | |
2334 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2335 | $1, $3); | |
2336 | } | |
2337 | | multiplicative_expression REM_TK unary_expression | |
2338 | { | |
2339 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2340 | $1, $3); | |
2341 | } | |
2342 | | multiplicative_expression MULT_TK error | |
2343 | {yyerror ("Missing term"); RECOVER;} | |
2344 | | multiplicative_expression DIV_TK error | |
2345 | {yyerror ("Missing term"); RECOVER;} | |
2346 | | multiplicative_expression REM_TK error | |
2347 | {yyerror ("Missing term"); RECOVER;} | |
2348 | ; | |
2349 | ||
2350 | additive_expression: | |
2351 | multiplicative_expression | |
2352 | | additive_expression PLUS_TK multiplicative_expression | |
2353 | { | |
2354 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2355 | $1, $3); | |
2356 | } | |
2357 | | additive_expression MINUS_TK multiplicative_expression | |
2358 | { | |
2359 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2360 | $1, $3); | |
2361 | } | |
2362 | | additive_expression PLUS_TK error | |
2363 | {yyerror ("Missing term"); RECOVER;} | |
2364 | | additive_expression MINUS_TK error | |
2365 | {yyerror ("Missing term"); RECOVER;} | |
2366 | ; | |
2367 | ||
2368 | shift_expression: | |
2369 | additive_expression | |
2370 | | shift_expression LS_TK additive_expression | |
2371 | { | |
2372 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2373 | $1, $3); | |
2374 | } | |
2375 | | shift_expression SRS_TK additive_expression | |
2376 | { | |
2377 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2378 | $1, $3); | |
2379 | } | |
2380 | | shift_expression ZRS_TK additive_expression | |
2381 | { | |
2382 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2383 | $1, $3); | |
2384 | } | |
2385 | | shift_expression LS_TK error | |
2386 | {yyerror ("Missing term"); RECOVER;} | |
2387 | | shift_expression SRS_TK error | |
2388 | {yyerror ("Missing term"); RECOVER;} | |
2389 | | shift_expression ZRS_TK error | |
2390 | {yyerror ("Missing term"); RECOVER;} | |
2391 | ; | |
2392 | ||
2393 | relational_expression: | |
2394 | shift_expression | |
2395 | | relational_expression LT_TK shift_expression | |
2396 | { | |
2397 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2398 | $1, $3); | |
2399 | } | |
2400 | | relational_expression GT_TK shift_expression | |
2401 | { | |
2402 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2403 | $1, $3); | |
2404 | } | |
2405 | | relational_expression LTE_TK shift_expression | |
2406 | { | |
2407 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2408 | $1, $3); | |
2409 | } | |
2410 | | relational_expression GTE_TK shift_expression | |
2411 | { | |
2412 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2413 | $1, $3); | |
2414 | } | |
2415 | | relational_expression INSTANCEOF_TK reference_type | |
5e942c50 | 2416 | { $$ = build_binop (INSTANCEOF_EXPR, $2.location, $1, $3); } |
e04a16fb AG |
2417 | | relational_expression LT_TK error |
2418 | {yyerror ("Missing term"); RECOVER;} | |
2419 | | relational_expression GT_TK error | |
2420 | {yyerror ("Missing term"); RECOVER;} | |
2421 | | relational_expression LTE_TK error | |
2422 | {yyerror ("Missing term"); RECOVER;} | |
2423 | | relational_expression GTE_TK error | |
2424 | {yyerror ("Missing term"); RECOVER;} | |
2425 | | relational_expression INSTANCEOF_TK error | |
2426 | {yyerror ("Invalid reference type"); RECOVER;} | |
2427 | ; | |
2428 | ||
2429 | equality_expression: | |
2430 | relational_expression | |
2431 | | equality_expression EQ_TK relational_expression | |
2432 | { | |
2433 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2434 | $1, $3); | |
2435 | } | |
2436 | | equality_expression NEQ_TK relational_expression | |
2437 | { | |
2438 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2439 | $1, $3); | |
2440 | } | |
2441 | | equality_expression EQ_TK error | |
2442 | {yyerror ("Missing term"); RECOVER;} | |
2443 | | equality_expression NEQ_TK error | |
2444 | {yyerror ("Missing term"); RECOVER;} | |
2445 | ; | |
2446 | ||
2447 | and_expression: | |
2448 | equality_expression | |
2449 | | and_expression AND_TK equality_expression | |
2450 | { | |
2451 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2452 | $1, $3); | |
2453 | } | |
2454 | | and_expression AND_TK error | |
2455 | {yyerror ("Missing term"); RECOVER;} | |
2456 | ; | |
2457 | ||
2458 | exclusive_or_expression: | |
2459 | and_expression | |
2460 | | exclusive_or_expression XOR_TK and_expression | |
2461 | { | |
2462 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2463 | $1, $3); | |
2464 | } | |
2465 | | exclusive_or_expression XOR_TK error | |
2466 | {yyerror ("Missing term"); RECOVER;} | |
2467 | ; | |
2468 | ||
2469 | inclusive_or_expression: | |
2470 | exclusive_or_expression | |
2471 | | inclusive_or_expression OR_TK exclusive_or_expression | |
2472 | { | |
2473 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2474 | $1, $3); | |
2475 | } | |
2476 | | inclusive_or_expression OR_TK error | |
2477 | {yyerror ("Missing term"); RECOVER;} | |
2478 | ; | |
2479 | ||
2480 | conditional_and_expression: | |
2481 | inclusive_or_expression | |
2482 | | conditional_and_expression BOOL_AND_TK inclusive_or_expression | |
2483 | { | |
2484 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2485 | $1, $3); | |
2486 | } | |
2487 | | conditional_and_expression BOOL_AND_TK error | |
2488 | {yyerror ("Missing term"); RECOVER;} | |
2489 | ; | |
2490 | ||
2491 | conditional_or_expression: | |
2492 | conditional_and_expression | |
2493 | | conditional_or_expression BOOL_OR_TK conditional_and_expression | |
2494 | { | |
2495 | $$ = build_binop (BINOP_LOOKUP ($2.token), $2.location, | |
2496 | $1, $3); | |
2497 | } | |
2498 | | conditional_or_expression BOOL_OR_TK error | |
2499 | {yyerror ("Missing term"); RECOVER;} | |
2500 | ; | |
2501 | ||
2502 | conditional_expression: /* Error handling here is weak */ | |
2503 | conditional_or_expression | |
2504 | | conditional_or_expression REL_QM_TK expression REL_CL_TK conditional_expression | |
22eed1e6 APB |
2505 | { |
2506 | $$ = build (CONDITIONAL_EXPR, NULL_TREE, $1, $3, $5); | |
2507 | EXPR_WFL_LINECOL ($$) = $2.location; | |
2508 | } | |
e04a16fb AG |
2509 | | conditional_or_expression REL_QM_TK REL_CL_TK error |
2510 | { | |
2511 | YYERROR_NOW; | |
2512 | yyerror ("Missing term"); | |
2513 | DRECOVER (1); | |
2514 | } | |
2515 | | conditional_or_expression REL_QM_TK error | |
2516 | {yyerror ("Missing term"); DRECOVER (2);} | |
2517 | | conditional_or_expression REL_QM_TK expression REL_CL_TK error | |
2518 | {yyerror ("Missing term"); DRECOVER (3);} | |
2519 | ; | |
2520 | ||
2521 | assignment_expression: | |
2522 | conditional_expression | |
2523 | | assignment | |
2524 | ; | |
2525 | ||
2526 | assignment: | |
2527 | left_hand_side assignment_operator assignment_expression | |
2528 | { $$ = build_assignment ($2.token, $2.location, $1, $3); } | |
2529 | | left_hand_side assignment_operator error | |
2530 | { | |
2531 | if (ctxp->prevent_ese != lineno) | |
2532 | yyerror ("Missing term"); | |
2533 | DRECOVER (assign); | |
2534 | } | |
2535 | ; | |
2536 | ||
2537 | left_hand_side: | |
2538 | name | |
2539 | | field_access | |
2540 | | array_access | |
2541 | ; | |
2542 | ||
2543 | assignment_operator: | |
2544 | ASSIGN_ANY_TK | |
2545 | | ASSIGN_TK | |
2546 | ; | |
2547 | ||
2548 | expression: | |
2549 | assignment_expression | |
2550 | ; | |
2551 | ||
2552 | constant_expression: | |
2553 | expression | |
2554 | ; | |
2555 | ||
2556 | %% | |
2557 | \f | |
2558 | ||
c2952b01 APB |
2559 | /* This section of the code deal with save/restoring parser contexts. |
2560 | Add mode documentation here. FIXME */ | |
e04a16fb | 2561 | |
c2952b01 APB |
2562 | /* Helper function. Create a new parser context. With |
2563 | COPY_FROM_PREVIOUS set to a non zero value, content of the previous | |
2564 | context is copied, otherwise, the new context is zeroed. The newly | |
2565 | created context becomes the current one. */ | |
e04a16fb | 2566 | |
c2952b01 APB |
2567 | static void |
2568 | create_new_parser_context (copy_from_previous) | |
2569 | int copy_from_previous; | |
e04a16fb | 2570 | { |
c2952b01 | 2571 | struct parser_ctxt *new; |
e04a16fb | 2572 | |
c2952b01 APB |
2573 | new = (struct parser_ctxt *)xmalloc(sizeof (struct parser_ctxt)); |
2574 | if (copy_from_previous) | |
2575 | { | |
2576 | memcpy ((PTR)new, (PTR)ctxp, sizeof (struct parser_ctxt)); | |
2577 | new->saved_data_ctx = 1; | |
2578 | } | |
2579 | else | |
2580 | bzero ((PTR) new, sizeof (struct parser_ctxt)); | |
2581 | ||
e04a16fb AG |
2582 | new->next = ctxp; |
2583 | ctxp = new; | |
c2952b01 APB |
2584 | } |
2585 | ||
2586 | /* Create a new parser context and make it the current one. */ | |
2587 | ||
2588 | void | |
2589 | java_push_parser_context () | |
2590 | { | |
2591 | create_new_parser_context (0); | |
e04a16fb | 2592 | if (ctxp->next) |
5e942c50 APB |
2593 | { |
2594 | ctxp->incomplete_class = ctxp->next->incomplete_class; | |
2595 | ctxp->gclass_list = ctxp->next->gclass_list; | |
2596 | } | |
e04a16fb AG |
2597 | } |
2598 | ||
c2952b01 APB |
2599 | void |
2600 | java_pop_parser_context (generate) | |
2601 | int generate; | |
2602 | { | |
2603 | tree current; | |
2604 | struct parser_ctxt *toFree, *next; | |
2605 | ||
2606 | if (!ctxp) | |
2607 | return; | |
2608 | ||
2609 | toFree = ctxp; | |
2610 | next = ctxp->next; | |
2611 | if (next) | |
2612 | { | |
2613 | next->incomplete_class = ctxp->incomplete_class; | |
2614 | next->gclass_list = ctxp->gclass_list; | |
2615 | lineno = ctxp->lineno; | |
2616 | finput = ctxp->finput; | |
2617 | current_class = ctxp->current_class; | |
2618 | } | |
2619 | ||
2620 | /* Set the single import class file flag to 0 for the current list | |
2621 | of imported things */ | |
2622 | for (current = ctxp->import_list; current; current = TREE_CHAIN (current)) | |
2623 | IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P (TREE_PURPOSE (current)) = 0; | |
2624 | ||
2625 | /* And restore those of the previous context */ | |
2626 | if ((ctxp = next)) /* Assignment is really meant here */ | |
2627 | for (current = ctxp->import_list; current; current = TREE_CHAIN (current)) | |
2628 | IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P (TREE_PURPOSE (current)) = 1; | |
2629 | ||
2630 | /* If we pushed a context to parse a class intended to be generated, | |
2631 | we keep it so we can remember the class. What we could actually | |
2632 | do is to just update a list of class names. */ | |
2633 | if (generate) | |
2634 | { | |
2635 | toFree->next = ctxp_for_generation; | |
2636 | ctxp_for_generation = toFree; | |
2637 | } | |
2638 | else | |
2639 | free (toFree); | |
2640 | } | |
2641 | ||
2642 | /* Create a parser context for the use of saving some global | |
2643 | variables. */ | |
2644 | ||
e04a16fb AG |
2645 | void |
2646 | java_parser_context_save_global () | |
2647 | { | |
22eed1e6 APB |
2648 | if (!ctxp) |
2649 | { | |
2650 | java_push_parser_context (); | |
ee07f4f4 APB |
2651 | ctxp->saved_data_ctx = 1; |
2652 | } | |
c2952b01 APB |
2653 | |
2654 | /* If this context already stores data, create a new one suitable | |
2655 | for data storage. */ | |
ee07f4f4 | 2656 | else if (ctxp->saved_data) |
c2952b01 APB |
2657 | create_new_parser_context (1); |
2658 | ||
e04a16fb AG |
2659 | ctxp->finput = finput; |
2660 | ctxp->lineno = lineno; | |
2661 | ctxp->current_class = current_class; | |
2662 | ctxp->filename = input_filename; | |
2663 | ctxp->current_function_decl = current_function_decl; | |
ee07f4f4 | 2664 | ctxp->saved_data = 1; |
e04a16fb AG |
2665 | } |
2666 | ||
c2952b01 APB |
2667 | /* Restore some global variables from the previous context. Make the |
2668 | previous context the current one. */ | |
2669 | ||
e04a16fb AG |
2670 | void |
2671 | java_parser_context_restore_global () | |
2672 | { | |
2673 | finput = ctxp->finput; | |
2674 | lineno = ctxp->lineno; | |
2675 | current_class = ctxp->current_class; | |
2676 | input_filename = ctxp->filename; | |
2677 | current_function_decl = ctxp->current_function_decl; | |
c2952b01 | 2678 | ctxp->saved_data = 0; |
ee07f4f4 APB |
2679 | if (ctxp->saved_data_ctx) |
2680 | java_pop_parser_context (0); | |
e04a16fb AG |
2681 | } |
2682 | ||
c2952b01 APB |
2683 | /* Suspend vital data for the current class/function being parsed so |
2684 | that an other class can be parsed. Used to let local/anonymous | |
2685 | classes be parsed. */ | |
2686 | ||
2687 | static void | |
2688 | java_parser_context_suspend () | |
e04a16fb | 2689 | { |
c2952b01 | 2690 | /* This makes debugging through java_debug_context easier */ |
3b304f5b | 2691 | static const char *name = "<inner buffer context>"; |
e04a16fb | 2692 | |
c2952b01 APB |
2693 | /* Duplicate the previous context, use it to save the globals we're |
2694 | interested in */ | |
2695 | create_new_parser_context (1); | |
2696 | ctxp->current_function_decl = current_function_decl; | |
2697 | ctxp->current_class = current_class; | |
5e942c50 | 2698 | |
c2952b01 APB |
2699 | /* Then create a new context which inherits all data from the |
2700 | previous one. This will be the new current context */ | |
2701 | create_new_parser_context (1); | |
2702 | ||
2703 | /* Help debugging */ | |
2704 | ctxp->next->filename = name; | |
2705 | } | |
2706 | ||
2707 | /* Resume vital data for the current class/function being parsed so | |
2708 | that an other class can be parsed. Used to let local/anonymous | |
2709 | classes be parsed. The trick is the data storing file position | |
2710 | informations must be restored to their current value, so parsing | |
2711 | can resume as if no context was ever saved. */ | |
2712 | ||
2713 | static void | |
2714 | java_parser_context_resume () | |
2715 | { | |
2716 | struct parser_ctxt *old = ctxp; /* This one is to be discarded */ | |
2717 | struct parser_ctxt *saver = old->next; /* This one contain saved info */ | |
2718 | struct parser_ctxt *restored = saver->next; /* This one is the old current */ | |
2719 | ||
2720 | /* We need to inherit the list of classes to complete/generate */ | |
2721 | restored->incomplete_class = old->incomplete_class; | |
2722 | restored->gclass_list = old->gclass_list; | |
2723 | restored->classd_list = old->classd_list; | |
2724 | restored->class_list = old->class_list; | |
2725 | ||
2726 | /* Restore the current class and function from the saver */ | |
2727 | current_class = saver->current_class; | |
2728 | current_function_decl = saver->current_function_decl; | |
2729 | ||
2730 | /* Retrive the restored context */ | |
2731 | ctxp = restored; | |
2732 | ||
2733 | /* Re-installed the data for the parsing to carry on */ | |
2734 | bcopy (&old->marker_begining, &ctxp->marker_begining, | |
2735 | (size_t)(&ctxp->marker_end - &ctxp->marker_begining)); | |
2736 | ||
2737 | /* Buffer context can now be discarded */ | |
2738 | free (saver); | |
2739 | free (old); | |
2740 | } | |
2741 | ||
2742 | /* Add a new anchor node to which all statement(s) initializing static | |
2743 | and non static initialized upon declaration field(s) will be | |
2744 | linked. */ | |
2745 | ||
2746 | static void | |
2747 | java_parser_context_push_initialized_field () | |
2748 | { | |
2749 | tree node; | |
2750 | ||
2751 | node = build_tree_list (NULL_TREE, NULL_TREE); | |
2752 | TREE_CHAIN (node) = CPC_STATIC_INITIALIZER_LIST (ctxp); | |
2753 | CPC_STATIC_INITIALIZER_LIST (ctxp) = node; | |
2754 | ||
2755 | node = build_tree_list (NULL_TREE, NULL_TREE); | |
2756 | TREE_CHAIN (node) = CPC_INITIALIZER_LIST (ctxp); | |
2757 | CPC_INITIALIZER_LIST (ctxp) = node; | |
2758 | ||
2759 | node = build_tree_list (NULL_TREE, NULL_TREE); | |
2760 | TREE_CHAIN (node) = CPC_INSTANCE_INITIALIZER_LIST (ctxp); | |
2761 | CPC_INSTANCE_INITIALIZER_LIST (ctxp) = node; | |
2762 | } | |
2763 | ||
2764 | /* Pop the lists of initialized field. If this lists aren't empty, | |
2765 | remember them so we can use it to create and populate the $finit$ | |
2766 | or <clinit> functions. */ | |
2767 | ||
2768 | static void | |
2769 | java_parser_context_pop_initialized_field () | |
2770 | { | |
2771 | tree stmts; | |
2772 | tree class_type = TREE_TYPE (GET_CPC ()); | |
2773 | ||
2774 | if (CPC_INITIALIZER_LIST (ctxp)) | |
e04a16fb | 2775 | { |
c2952b01 APB |
2776 | stmts = CPC_INITIALIZER_STMT (ctxp); |
2777 | CPC_INITIALIZER_LIST (ctxp) = TREE_CHAIN (CPC_INITIALIZER_LIST (ctxp)); | |
2778 | if (stmts && !java_error_count) | |
2779 | TYPE_FINIT_STMT_LIST (class_type) = reorder_static_initialized (stmts); | |
e04a16fb AG |
2780 | } |
2781 | ||
c2952b01 APB |
2782 | if (CPC_STATIC_INITIALIZER_LIST (ctxp)) |
2783 | { | |
2784 | stmts = CPC_STATIC_INITIALIZER_STMT (ctxp); | |
2785 | CPC_STATIC_INITIALIZER_LIST (ctxp) = | |
2786 | TREE_CHAIN (CPC_STATIC_INITIALIZER_LIST (ctxp)); | |
2787 | /* Keep initialization in order to enforce 8.5 */ | |
2788 | if (stmts && !java_error_count) | |
2789 | TYPE_CLINIT_STMT_LIST (class_type) = nreverse (stmts); | |
2790 | } | |
e04a16fb | 2791 | |
c2952b01 APB |
2792 | /* JDK 1.1 instance initializers */ |
2793 | if (CPC_INSTANCE_INITIALIZER_LIST (ctxp)) | |
b351b287 | 2794 | { |
c2952b01 APB |
2795 | stmts = CPC_INSTANCE_INITIALIZER_STMT (ctxp); |
2796 | CPC_INSTANCE_INITIALIZER_LIST (ctxp) = | |
2797 | TREE_CHAIN (CPC_INSTANCE_INITIALIZER_LIST (ctxp)); | |
2798 | if (stmts && !java_error_count) | |
2799 | TYPE_II_STMT_LIST (class_type) = nreverse (stmts); | |
b351b287 | 2800 | } |
c2952b01 APB |
2801 | } |
2802 | ||
2803 | static tree | |
2804 | reorder_static_initialized (list) | |
2805 | tree list; | |
2806 | { | |
2807 | /* We have to keep things in order. The alias initializer have to | |
2808 | come first, then the initialized regular field, in reverse to | |
2809 | keep them in lexical order. */ | |
2810 | tree marker, previous = NULL_TREE; | |
2811 | for (marker = list; marker; previous = marker, marker = TREE_CHAIN (marker)) | |
2812 | if (TREE_CODE (marker) == TREE_LIST | |
2813 | && !TREE_VALUE (marker) && !TREE_PURPOSE (marker)) | |
2814 | break; | |
2815 | ||
2816 | /* No static initialized, the list is fine as is */ | |
2817 | if (!previous) | |
2818 | list = TREE_CHAIN (marker); | |
2819 | ||
2820 | /* No marker? reverse the whole list */ | |
2821 | else if (!marker) | |
2822 | list = nreverse (list); | |
2823 | ||
2824 | /* Otherwise, reverse what's after the marker and the new reordered | |
2825 | sublist will replace the marker. */ | |
b351b287 | 2826 | else |
c2952b01 APB |
2827 | { |
2828 | TREE_CHAIN (previous) = NULL_TREE; | |
2829 | list = nreverse (list); | |
2830 | list = chainon (TREE_CHAIN (marker), list); | |
2831 | } | |
2832 | return list; | |
e04a16fb AG |
2833 | } |
2834 | ||
c2952b01 APB |
2835 | /* Helper functions to dump the parser context stack. */ |
2836 | ||
2837 | #define TAB_CONTEXT(C) \ | |
2838 | {int i; for (i = 0; i < (C); i++) fputc (' ', stderr);} | |
ee07f4f4 APB |
2839 | |
2840 | static void | |
2841 | java_debug_context_do (tab) | |
2842 | int tab; | |
2843 | { | |
ee07f4f4 APB |
2844 | struct parser_ctxt *copy = ctxp; |
2845 | while (copy) | |
2846 | { | |
c2952b01 | 2847 | TAB_CONTEXT (tab); |
ee07f4f4 | 2848 | fprintf (stderr, "ctxt: 0x%0lX\n", (unsigned long)copy); |
c2952b01 | 2849 | TAB_CONTEXT (tab); |
ee07f4f4 | 2850 | fprintf (stderr, "filename: %s\n", copy->filename); |
c2952b01 APB |
2851 | TAB_CONTEXT (tab); |
2852 | fprintf (stderr, "lineno: %d\n", copy->lineno); | |
2853 | TAB_CONTEXT (tab); | |
ee07f4f4 APB |
2854 | fprintf (stderr, "package: %s\n", |
2855 | (copy->package ? | |
2856 | IDENTIFIER_POINTER (copy->package) : "<none>")); | |
c2952b01 | 2857 | TAB_CONTEXT (tab); |
ee07f4f4 | 2858 | fprintf (stderr, "context for saving: %d\n", copy->saved_data_ctx); |
c2952b01 | 2859 | TAB_CONTEXT (tab); |
ee07f4f4 APB |
2860 | fprintf (stderr, "saved data: %d\n", copy->saved_data); |
2861 | copy = copy->next; | |
2862 | tab += 2; | |
2863 | } | |
ee07f4f4 APB |
2864 | } |
2865 | ||
c2952b01 APB |
2866 | /* Dump the stacked up parser contexts. Intended to be called from a |
2867 | debugger. */ | |
2868 | ||
ee07f4f4 APB |
2869 | void |
2870 | java_debug_context () | |
2871 | { | |
2872 | java_debug_context_do (0); | |
2873 | } | |
2874 | ||
c2952b01 APB |
2875 | \f |
2876 | ||
2877 | /* Flag for the error report routine to issue the error the first time | |
2878 | it's called (overriding the default behavior which is to drop the | |
2879 | first invocation and honor the second one, taking advantage of a | |
2880 | richer context. */ | |
2881 | static int force_error = 0; | |
ee07f4f4 | 2882 | |
8119c720 APB |
2883 | /* Reporting an constructor invocation error. */ |
2884 | static void | |
2885 | parse_ctor_invocation_error () | |
2886 | { | |
2887 | if (DECL_CONSTRUCTOR_P (current_function_decl)) | |
2888 | yyerror ("Constructor invocation must be first thing in a constructor"); | |
2889 | else | |
2890 | yyerror ("Only constructors can invoke constructors"); | |
2891 | } | |
2892 | ||
2893 | /* Reporting JDK1.1 features not implemented. */ | |
b67d701b PB |
2894 | |
2895 | static tree | |
2896 | parse_jdk1_1_error (msg) | |
49f48c71 | 2897 | const char *msg; |
b67d701b PB |
2898 | { |
2899 | sorry (": `%s' JDK1.1(TM) feature", msg); | |
2900 | java_error_count++; | |
9bbc7d9f | 2901 | return empty_stmt_node; |
b67d701b PB |
2902 | } |
2903 | ||
e04a16fb AG |
2904 | static int do_warning = 0; |
2905 | ||
2906 | void | |
2907 | yyerror (msg) | |
49f48c71 | 2908 | const char *msg; |
e04a16fb AG |
2909 | { |
2910 | static java_lc elc; | |
2911 | static int prev_lineno; | |
49f48c71 | 2912 | static const char *prev_msg; |
e04a16fb | 2913 | |
0a2138e2 | 2914 | int save_lineno; |
e04a16fb AG |
2915 | char *remainder, *code_from_source; |
2916 | extern struct obstack temporary_obstack; | |
2917 | ||
2918 | if (!force_error && prev_lineno == lineno) | |
2919 | return; | |
2920 | ||
2921 | /* Save current error location but report latter, when the context is | |
2922 | richer. */ | |
2923 | if (ctxp->java_error_flag == 0) | |
2924 | { | |
2925 | ctxp->java_error_flag = 1; | |
2926 | elc = ctxp->elc; | |
2927 | /* Do something to use the previous line if we're reaching the | |
2928 | end of the file... */ | |
2929 | #ifdef VERBOSE_SKELETON | |
2930 | printf ("* Error detected (%s)\n", (msg ? msg : "(null)")); | |
2931 | #endif | |
2932 | return; | |
2933 | } | |
2934 | ||
2935 | /* Ignore duplicate message on the same line. BTW, this is dubious. FIXME */ | |
2936 | if (!force_error && msg == prev_msg && prev_lineno == elc.line) | |
2937 | return; | |
2938 | ||
2939 | ctxp->java_error_flag = 0; | |
2940 | if (do_warning) | |
2941 | java_warning_count++; | |
2942 | else | |
2943 | java_error_count++; | |
2944 | ||
807bc1db | 2945 | if (elc.col == 0 && msg && msg[1] == ';') |
e04a16fb AG |
2946 | { |
2947 | elc.col = ctxp->p_line->char_col-1; | |
2948 | elc.line = ctxp->p_line->lineno; | |
2949 | } | |
2950 | ||
2951 | save_lineno = lineno; | |
2952 | prev_lineno = lineno = elc.line; | |
2953 | prev_msg = msg; | |
2954 | ||
2955 | code_from_source = java_get_line_col (ctxp->filename, elc.line, elc.col); | |
2956 | obstack_grow0 (&temporary_obstack, | |
2957 | code_from_source, strlen (code_from_source)); | |
2958 | remainder = obstack_finish (&temporary_obstack); | |
2959 | if (do_warning) | |
2960 | warning ("%s.\n%s", msg, remainder); | |
2961 | else | |
2962 | error ("%s.\n%s", msg, remainder); | |
2963 | ||
2964 | /* This allow us to cheaply avoid an extra 'Invalid expression | |
2965 | statement' error report when errors have been already reported on | |
2966 | the same line. This occurs when we report an error but don't have | |
2967 | a synchronization point other than ';', which | |
2968 | expression_statement is the only one to take care of. */ | |
2969 | ctxp->prevent_ese = lineno = save_lineno; | |
2970 | } | |
2971 | ||
2972 | static void | |
15fdcfe9 | 2973 | issue_warning_error_from_context (cl, msg, ap) |
5e942c50 | 2974 | tree cl; |
d4476be2 | 2975 | const char *msg; |
15fdcfe9 | 2976 | va_list ap; |
5e942c50 | 2977 | { |
3b304f5b | 2978 | const char *saved, *saved_input_filename; |
15fdcfe9 PB |
2979 | char buffer [4096]; |
2980 | vsprintf (buffer, msg, ap); | |
2981 | force_error = 1; | |
5e942c50 APB |
2982 | |
2983 | ctxp->elc.line = EXPR_WFL_LINENO (cl); | |
82371d41 APB |
2984 | ctxp->elc.col = (EXPR_WFL_COLNO (cl) == 0xfff ? -1 : |
2985 | (EXPR_WFL_COLNO (cl) == 0xffe ? -2 : EXPR_WFL_COLNO (cl))); | |
5e942c50 APB |
2986 | |
2987 | /* We have a CL, that's a good reason for using it if it contains data */ | |
2988 | saved = ctxp->filename; | |
2989 | if (TREE_CODE (cl) == EXPR_WITH_FILE_LOCATION && EXPR_WFL_FILENAME_NODE (cl)) | |
2990 | ctxp->filename = EXPR_WFL_FILENAME (cl); | |
1886c9d8 APB |
2991 | saved_input_filename = input_filename; |
2992 | input_filename = ctxp->filename; | |
15fdcfe9 PB |
2993 | java_error (NULL); |
2994 | java_error (buffer); | |
5e942c50 | 2995 | ctxp->filename = saved; |
1886c9d8 | 2996 | input_filename = saved_input_filename; |
15fdcfe9 | 2997 | force_error = 0; |
5e942c50 APB |
2998 | } |
2999 | ||
e04a16fb AG |
3000 | /* Issue an error message at a current source line CL */ |
3001 | ||
15fdcfe9 | 3002 | void |
df32d2ce | 3003 | parse_error_context VPARAMS ((tree cl, const char *msg, ...)) |
e04a16fb | 3004 | { |
d4476be2 | 3005 | #ifndef ANSI_PROTOTYPES |
e04a16fb | 3006 | tree cl; |
d4476be2 | 3007 | const char *msg; |
e04a16fb | 3008 | #endif |
e04a16fb AG |
3009 | va_list ap; |
3010 | ||
3011 | VA_START (ap, msg); | |
d4476be2 | 3012 | #ifndef ANSI_PROTOTYPES |
e04a16fb | 3013 | cl = va_arg (ap, tree); |
d4476be2 | 3014 | msg = va_arg (ap, const char *); |
e04a16fb | 3015 | #endif |
15fdcfe9 PB |
3016 | issue_warning_error_from_context (cl, msg, ap); |
3017 | va_end (ap); | |
e04a16fb AG |
3018 | } |
3019 | ||
3020 | /* Issue a warning at a current source line CL */ | |
3021 | ||
3022 | static void | |
df32d2ce | 3023 | parse_warning_context VPARAMS ((tree cl, const char *msg, ...)) |
e04a16fb | 3024 | { |
d4476be2 | 3025 | #ifndef ANSI_PROTOTYPES |
e04a16fb | 3026 | tree cl; |
d4476be2 | 3027 | const char *msg; |
e04a16fb | 3028 | #endif |
e04a16fb AG |
3029 | va_list ap; |
3030 | ||
3031 | VA_START (ap, msg); | |
d4476be2 | 3032 | #ifndef ANSI_PROTOTYPES |
e04a16fb | 3033 | cl = va_arg (ap, tree); |
d4476be2 | 3034 | msg = va_arg (ap, const char *); |
e04a16fb | 3035 | #endif |
e04a16fb | 3036 | |
c877974e | 3037 | force_error = do_warning = 1; |
15fdcfe9 | 3038 | issue_warning_error_from_context (cl, msg, ap); |
c877974e | 3039 | do_warning = force_error = 0; |
15fdcfe9 | 3040 | va_end (ap); |
e04a16fb AG |
3041 | } |
3042 | ||
82371d41 APB |
3043 | static tree |
3044 | find_expr_with_wfl (node) | |
3045 | tree node; | |
3046 | { | |
3047 | while (node) | |
3048 | { | |
3049 | char code; | |
3050 | tree to_return; | |
3051 | ||
3052 | switch (TREE_CODE (node)) | |
3053 | { | |
3054 | case BLOCK: | |
c0d87ff6 PB |
3055 | node = BLOCK_EXPR_BODY (node); |
3056 | continue; | |
82371d41 APB |
3057 | |
3058 | case COMPOUND_EXPR: | |
3059 | to_return = find_expr_with_wfl (TREE_OPERAND (node, 0)); | |
3060 | if (to_return) | |
3061 | return to_return; | |
c0d87ff6 PB |
3062 | node = TREE_OPERAND (node, 1); |
3063 | continue; | |
82371d41 APB |
3064 | |
3065 | case LOOP_EXPR: | |
c0d87ff6 PB |
3066 | node = TREE_OPERAND (node, 0); |
3067 | continue; | |
82371d41 APB |
3068 | |
3069 | case LABELED_BLOCK_EXPR: | |
c0d87ff6 PB |
3070 | node = TREE_OPERAND (node, 1); |
3071 | continue; | |
3072 | ||
82371d41 APB |
3073 | default: |
3074 | code = TREE_CODE_CLASS (TREE_CODE (node)); | |
3075 | if (((code == '1') || (code == '2') || (code == 'e')) | |
3076 | && EXPR_WFL_LINECOL (node)) | |
3077 | return node; | |
ba179f9f | 3078 | return NULL_TREE; |
82371d41 APB |
3079 | } |
3080 | } | |
3081 | return NULL_TREE; | |
3082 | } | |
3083 | ||
3084 | /* Issue a missing return statement error. Uses METHOD to figure the | |
3085 | last line of the method the error occurs in. */ | |
3086 | ||
3087 | static void | |
3088 | missing_return_error (method) | |
3089 | tree method; | |
3090 | { | |
3091 | EXPR_WFL_SET_LINECOL (wfl_operator, DECL_SOURCE_LINE_LAST (method), -2); | |
3092 | parse_error_context (wfl_operator, "Missing return statement"); | |
3093 | } | |
3094 | ||
3095 | /* Issue an unreachable statement error. From NODE, find the next | |
3096 | statement to report appropriately. */ | |
3097 | static void | |
3098 | unreachable_stmt_error (node) | |
3099 | tree node; | |
3100 | { | |
3101 | /* Browse node to find the next expression node that has a WFL. Use | |
3102 | the location to report the error */ | |
3103 | if (TREE_CODE (node) == COMPOUND_EXPR) | |
3104 | node = find_expr_with_wfl (TREE_OPERAND (node, 1)); | |
3105 | else | |
3106 | node = find_expr_with_wfl (node); | |
3107 | ||
3108 | if (node) | |
3109 | { | |
3110 | EXPR_WFL_SET_LINECOL (wfl_operator, EXPR_WFL_LINENO (node), -2); | |
3111 | parse_error_context (wfl_operator, "Unreachable statement"); | |
3112 | } | |
3113 | else | |
3114 | fatal ("Can't get valid statement - unreachable_stmt_error"); | |
3115 | } | |
3116 | ||
c877974e | 3117 | int |
e04a16fb AG |
3118 | java_report_errors () |
3119 | { | |
3120 | if (java_error_count) | |
3121 | fprintf (stderr, "%d error%s", | |
3122 | java_error_count, (java_error_count == 1 ? "" : "s")); | |
3123 | if (java_warning_count) | |
3124 | fprintf (stderr, "%s%d warning%s", (java_error_count ? ", " : ""), | |
3125 | java_warning_count, (java_warning_count == 1 ? "" : "s")); | |
3126 | if (java_error_count || java_warning_count) | |
3127 | putc ('\n', stderr); | |
c877974e | 3128 | return java_error_count; |
e04a16fb AG |
3129 | } |
3130 | ||
3131 | static char * | |
3132 | java_accstring_lookup (flags) | |
3133 | int flags; | |
3134 | { | |
3135 | static char buffer [80]; | |
3136 | #define COPY_RETURN(S) {strcpy (buffer, S); return buffer;} | |
3137 | ||
3138 | /* Access modifier looked-up first for easier report on forbidden | |
3139 | access. */ | |
3140 | if (flags & ACC_PUBLIC) COPY_RETURN ("public"); | |
3141 | if (flags & ACC_PRIVATE) COPY_RETURN ("private"); | |
3142 | if (flags & ACC_PROTECTED) COPY_RETURN ("protected"); | |
3143 | if (flags & ACC_STATIC) COPY_RETURN ("static"); | |
3144 | if (flags & ACC_FINAL) COPY_RETURN ("final"); | |
3145 | if (flags & ACC_SYNCHRONIZED) COPY_RETURN ("synchronized"); | |
3146 | if (flags & ACC_VOLATILE) COPY_RETURN ("volatile"); | |
3147 | if (flags & ACC_TRANSIENT) COPY_RETURN ("transient"); | |
3148 | if (flags & ACC_NATIVE) COPY_RETURN ("native"); | |
3149 | if (flags & ACC_INTERFACE) COPY_RETURN ("interface"); | |
3150 | if (flags & ACC_ABSTRACT) COPY_RETURN ("abstract"); | |
3151 | ||
3152 | buffer [0] = '\0'; | |
3153 | return buffer; | |
3154 | #undef COPY_RETURN | |
3155 | } | |
3156 | ||
b67d701b PB |
3157 | /* Issuing error messages upon redefinition of classes, interfaces or |
3158 | variables. */ | |
3159 | ||
e04a16fb | 3160 | static void |
b67d701b | 3161 | classitf_redefinition_error (context, id, decl, cl) |
49f48c71 | 3162 | const char *context; |
e04a16fb AG |
3163 | tree id, decl, cl; |
3164 | { | |
3165 | parse_error_context (cl, "%s `%s' already defined in %s:%d", | |
3166 | context, IDENTIFIER_POINTER (id), | |
3167 | DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl)); | |
3168 | /* Here we should point out where its redefined. It's a unicode. FIXME */ | |
3169 | } | |
3170 | ||
b67d701b PB |
3171 | static void |
3172 | variable_redefinition_error (context, name, type, line) | |
3173 | tree context, name, type; | |
3174 | int line; | |
3175 | { | |
49f48c71 | 3176 | const char *type_name; |
b67d701b PB |
3177 | |
3178 | /* Figure a proper name for type. We might haven't resolved it */ | |
c877974e APB |
3179 | if (TREE_CODE (type) == POINTER_TYPE && !TREE_TYPE (type)) |
3180 | type_name = IDENTIFIER_POINTER (TYPE_NAME (type)); | |
b67d701b | 3181 | else |
0a2138e2 | 3182 | type_name = lang_printable_name (type, 0); |
b67d701b PB |
3183 | |
3184 | parse_error_context (context, | |
781b0558 | 3185 | "Variable `%s' is already defined in this method and was declared `%s %s' at line %d", |
b67d701b PB |
3186 | IDENTIFIER_POINTER (name), |
3187 | type_name, IDENTIFIER_POINTER (name), line); | |
3188 | } | |
3189 | ||
c583dd46 APB |
3190 | static tree |
3191 | build_array_from_name (type, type_wfl, name, ret_name) | |
3192 | tree type, type_wfl, name, *ret_name; | |
3193 | { | |
3194 | int more_dims = 0; | |
49f48c71 | 3195 | const char *string; |
c583dd46 APB |
3196 | |
3197 | /* Eventually get more dims */ | |
3198 | string = IDENTIFIER_POINTER (name); | |
3199 | while (string [more_dims] == '[') | |
3200 | more_dims++; | |
3201 | ||
3202 | /* If we have, then craft a new type for this variable */ | |
3203 | if (more_dims) | |
3204 | { | |
c0d87ff6 | 3205 | name = get_identifier (&string [more_dims]); |
c583dd46 | 3206 | |
34f4db93 APB |
3207 | /* If we have a pointer, use its type */ |
3208 | if (TREE_CODE (type) == POINTER_TYPE) | |
3209 | type = TREE_TYPE (type); | |
c583dd46 APB |
3210 | |
3211 | /* Building the first dimension of a primitive type uses this | |
3212 | function */ | |
3213 | if (JPRIMITIVE_TYPE_P (type)) | |
3214 | { | |
3215 | type = build_java_array_type (type, -1); | |
22eed1e6 | 3216 | CLASS_LOADED_P (type) = 1; |
c583dd46 APB |
3217 | more_dims--; |
3218 | } | |
3219 | /* Otherwise, if we have a WFL for this type, use it (the type | |
3220 | is already an array on an unresolved type, and we just keep | |
3221 | on adding dimensions) */ | |
3222 | else if (type_wfl) | |
3223 | type = type_wfl; | |
3224 | ||
3225 | /* Add all the dimensions */ | |
3226 | while (more_dims--) | |
3227 | type = build_unresolved_array_type (type); | |
3228 | ||
3229 | /* The type may have been incomplete in the first place */ | |
3230 | if (type_wfl) | |
3231 | type = obtain_incomplete_type (type); | |
3232 | } | |
3233 | ||
c2952b01 APB |
3234 | if (ret_name) |
3235 | *ret_name = name; | |
c583dd46 APB |
3236 | return type; |
3237 | } | |
3238 | ||
e04a16fb AG |
3239 | /* Build something that the type identifier resolver will identify as |
3240 | being an array to an unresolved type. TYPE_WFL is a WFL on a | |
3241 | identifier. */ | |
3242 | ||
3243 | static tree | |
3244 | build_unresolved_array_type (type_or_wfl) | |
3245 | tree type_or_wfl; | |
3246 | { | |
49f48c71 | 3247 | const char *ptr; |
e04a16fb | 3248 | |
1886c9d8 | 3249 | /* TYPE_OR_WFL might be an array on a resolved type. In this case, |
e04a16fb AG |
3250 | just create a array type */ |
3251 | if (TREE_CODE (type_or_wfl) == RECORD_TYPE) | |
3252 | { | |
3253 | tree type = build_java_array_type (type_or_wfl, -1); | |
3254 | CLASS_LOADED_P (type) = CLASS_LOADED_P (type_or_wfl); | |
3255 | return type; | |
3256 | } | |
3257 | ||
3258 | obstack_1grow (&temporary_obstack, '['); | |
3259 | obstack_grow0 (&temporary_obstack, | |
3260 | IDENTIFIER_POINTER (EXPR_WFL_NODE (type_or_wfl)), | |
3261 | IDENTIFIER_LENGTH (EXPR_WFL_NODE (type_or_wfl))); | |
3262 | ptr = obstack_finish (&temporary_obstack); | |
3263 | return build_expr_wfl (get_identifier (ptr), | |
3264 | EXPR_WFL_FILENAME (type_or_wfl), | |
3265 | EXPR_WFL_LINENO (type_or_wfl), | |
3266 | EXPR_WFL_COLNO (type_or_wfl)); | |
3267 | } | |
3268 | ||
e04a16fb AG |
3269 | static void |
3270 | parser_add_interface (class_decl, interface_decl, wfl) | |
3271 | tree class_decl, interface_decl, wfl; | |
3272 | { | |
3273 | if (maybe_add_interface (TREE_TYPE (class_decl), TREE_TYPE (interface_decl))) | |
3274 | parse_error_context (wfl, "Interface `%s' repeated", | |
3275 | IDENTIFIER_POINTER (DECL_NAME (interface_decl))); | |
3276 | } | |
3277 | ||
3278 | /* Bulk of common class/interface checks. Return 1 if an error was | |
3279 | encountered. TAG is 0 for a class, 1 for an interface. */ | |
3280 | ||
3281 | static int | |
3282 | check_class_interface_creation (is_interface, flags, raw_name, qualified_name, decl, cl) | |
3283 | int is_interface, flags; | |
3284 | tree raw_name, qualified_name, decl, cl; | |
3285 | { | |
3286 | tree node; | |
c2952b01 APB |
3287 | int sca = 0; /* Static class allowed */ |
3288 | int icaf = 0; /* Inner class allowed flags */ | |
3289 | int uaaf = CLASS_MODIFIERS; /* Usually allowed access flags */ | |
e04a16fb AG |
3290 | |
3291 | if (!quiet_flag) | |
c2952b01 APB |
3292 | fprintf (stderr, " %s%s %s", |
3293 | (CPC_INNER_P () ? "inner" : ""), | |
3294 | (is_interface ? "interface" : "class"), | |
e04a16fb AG |
3295 | IDENTIFIER_POINTER (qualified_name)); |
3296 | ||
3297 | /* Scope of an interface/class type name: | |
3298 | - Can't be imported by a single type import | |
3299 | - Can't already exists in the package */ | |
3300 | if (IS_A_SINGLE_IMPORT_CLASSFILE_NAME_P (raw_name) | |
3301 | && (node = find_name_in_single_imports (raw_name))) | |
3302 | { | |
3303 | parse_error_context | |
3304 | (cl, "%s name `%s' clashes with imported type `%s'", | |
3305 | (is_interface ? "Interface" : "Class"), | |
3306 | IDENTIFIER_POINTER (raw_name), IDENTIFIER_POINTER (node)); | |
3307 | return 1; | |
3308 | } | |
3309 | if (decl && CLASS_COMPLETE_P (decl)) | |
3310 | { | |
b67d701b PB |
3311 | classitf_redefinition_error ((is_interface ? "Interface" : "Class"), |
3312 | qualified_name, decl, cl); | |
e04a16fb AG |
3313 | return 1; |
3314 | } | |
3315 | ||
c2952b01 APB |
3316 | if (check_inner_class_redefinition (raw_name, cl)) |
3317 | return 1; | |
3318 | ||
3319 | /* If public, file name should match class/interface name, except | |
3320 | when dealing with an inner class */ | |
3321 | if (!CPC_INNER_P () && (flags & ACC_PUBLIC )) | |
e04a16fb | 3322 | { |
49f48c71 | 3323 | const char *f; |
e04a16fb AG |
3324 | |
3325 | /* Contains OS dependent assumption on path separator. FIXME */ | |
3326 | for (f = &input_filename [strlen (input_filename)]; | |
fa322ab5 TT |
3327 | f != input_filename && f[0] != '/' && f[0] != DIR_SEPARATOR; |
3328 | f--) | |
3329 | ; | |
847fe791 | 3330 | if (f[0] == '/' || f[0] == DIR_SEPARATOR) |
e04a16fb AG |
3331 | f++; |
3332 | if (strncmp (IDENTIFIER_POINTER (raw_name), | |
3333 | f , IDENTIFIER_LENGTH (raw_name)) || | |
3334 | f [IDENTIFIER_LENGTH (raw_name)] != '.') | |
781b0558 KG |
3335 | parse_error_context |
3336 | (cl, "Public %s `%s' must be defined in a file called `%s.java'", | |
e04a16fb AG |
3337 | (is_interface ? "interface" : "class"), |
3338 | IDENTIFIER_POINTER (qualified_name), | |
3339 | IDENTIFIER_POINTER (raw_name)); | |
3340 | } | |
3341 | ||
c2952b01 APB |
3342 | /* Static classes can be declared only in top level classes. Note: |
3343 | once static, a inner class is a top level class. */ | |
3344 | if (flags & ACC_STATIC) | |
3345 | { | |
3346 | /* Catch the specific error of declaring an class inner class | |
3347 | with no toplevel enclosing class. Prevent check_modifiers from | |
3348 | complaining a second time */ | |
3349 | if (CPC_INNER_P () && !TOPLEVEL_CLASS_DECL_P (GET_CPC())) | |
3350 | { | |
3351 | parse_error_context (cl, "Inner class `%s' can't be static. Static classes can only occur in interfaces and top-level classes", | |
3352 | IDENTIFIER_POINTER (qualified_name)); | |
3353 | sca = ACC_STATIC; | |
3354 | } | |
3355 | /* Else, in the context of a top-level class declaration, let | |
3356 | `check_modifiers' do its job, otherwise, give it a go */ | |
3357 | else | |
3358 | sca = (GET_CPC_LIST () ? ACC_STATIC : 0); | |
3359 | } | |
3360 | ||
a40d21da | 3361 | /* Inner classes can be declared private or protected |
c2952b01 APB |
3362 | within their enclosing classes. */ |
3363 | if (CPC_INNER_P ()) | |
3364 | { | |
3365 | /* A class which is local to a block can't be public, private, | |
3366 | protected or static. But it is created final, so allow this | |
3367 | one. */ | |
3368 | if (current_function_decl) | |
3369 | icaf = sca = uaaf = ACC_FINAL; | |
3370 | else | |
3371 | { | |
3372 | check_modifiers_consistency (flags); | |
3373 | icaf = ACC_PRIVATE|ACC_PROTECTED; | |
3374 | } | |
3375 | } | |
3376 | ||
a40d21da APB |
3377 | if (is_interface) |
3378 | { | |
3379 | if (CPC_INNER_P ()) | |
3380 | uaaf = INTERFACE_INNER_MODIFIERS; | |
3381 | else | |
3382 | uaaf = INTERFACE_MODIFIERS; | |
3383 | ||
3384 | check_modifiers ("Illegal modifier `%s' for interface declaration", | |
3385 | flags, uaaf); | |
3386 | } | |
2884c41e | 3387 | else |
a40d21da APB |
3388 | check_modifiers ((current_function_decl ? |
3389 | "Illegal modifier `%s' for local class declaration" : | |
3390 | "Illegal modifier `%s' for class declaration"), | |
c2952b01 | 3391 | flags, uaaf|sca|icaf); |
e04a16fb AG |
3392 | return 0; |
3393 | } | |
3394 | ||
c2952b01 APB |
3395 | static void |
3396 | make_nested_class_name (cpc_list) | |
3397 | tree cpc_list; | |
3398 | { | |
3399 | tree name; | |
3400 | ||
3401 | if (!cpc_list) | |
3402 | return; | |
3403 | else | |
3404 | make_nested_class_name (TREE_CHAIN (cpc_list)); | |
3405 | ||
3406 | /* Pick the qualified name when dealing with the first upmost | |
3407 | enclosing class */ | |
3408 | name = (TREE_CHAIN (cpc_list) ? | |
3409 | TREE_PURPOSE (cpc_list) : DECL_NAME (TREE_VALUE (cpc_list))); | |
3410 | obstack_grow (&temporary_obstack, | |
3411 | IDENTIFIER_POINTER (name), IDENTIFIER_LENGTH (name)); | |
3412 | /* Why is NO_DOLLAR_IN_LABEL defined? */ | |
3413 | #if 0 | |
3414 | #ifdef NO_DOLLAR_IN_LABEL | |
3415 | fatal ("make_nested_class_name: Can't use '$' as a separator " | |
3416 | "for inner classes"); | |
3417 | #endif | |
3418 | #endif | |
3419 | obstack_1grow (&temporary_obstack, '$'); | |
3420 | } | |
3421 | ||
3422 | /* Can't redefine a class already defined in an earlier scope. */ | |
3423 | ||
3424 | static int | |
3425 | check_inner_class_redefinition (raw_name, cl) | |
3426 | tree raw_name, cl; | |
3427 | { | |
3428 | tree scope_list; | |
3429 | ||
3430 | for (scope_list = GET_CPC_LIST (); scope_list; | |
3431 | scope_list = GET_NEXT_ENCLOSING_CPC (scope_list)) | |
3432 | if (raw_name == GET_CPC_UN_NODE (scope_list)) | |
3433 | { | |
3434 | parse_error_context | |
3435 | (cl, "The class name `%s' is already defined in this scope. An inner class may not have the same simple name as any of its enclosing classes", | |
3436 | IDENTIFIER_POINTER (raw_name)); | |
3437 | return 1; | |
3438 | } | |
3439 | return 0; | |
3440 | } | |
3441 | ||
3442 | static tree | |
3443 | find_as_inner_class (enclosing, name, cl) | |
3444 | tree enclosing, name, cl; | |
3445 | { | |
3446 | tree qual, to_return; | |
3447 | if (!enclosing) | |
3448 | return NULL_TREE; | |
3449 | ||
3450 | name = TYPE_NAME (name); | |
3451 | ||
3452 | /* First search: within the scope of `enclosing', search for name */ | |
3453 | if (QUALIFIED_P (name) && cl && EXPR_WFL_NODE (cl) == name) | |
3454 | qual = EXPR_WFL_QUALIFICATION (cl); | |
3455 | else if (cl) | |
3456 | qual = build_tree_list (cl, NULL_TREE); | |
3457 | else | |
3458 | qual = build_tree_list (build_expr_wfl (name, NULL, 0, 0), NULL_TREE); | |
3459 | ||
3460 | if ((to_return = find_as_inner_class_do (qual, enclosing))) | |
3461 | return to_return; | |
3462 | ||
3463 | /* We're dealing with a qualified name. Try to resolve thing until | |
3464 | we get something that is an enclosing class. */ | |
3465 | if (QUALIFIED_P (name) && cl && EXPR_WFL_NODE (cl) == name) | |
3466 | { | |
3467 | tree acc = NULL_TREE, decl = NULL_TREE, ptr; | |
3468 | ||
3469 | for(qual = EXPR_WFL_QUALIFICATION (cl); qual && !decl; | |
3470 | qual = TREE_CHAIN (qual)) | |
3471 | { | |
3472 | acc = merge_qualified_name (acc, | |
3473 | EXPR_WFL_NODE (TREE_PURPOSE (qual))); | |
3474 | BUILD_PTR_FROM_NAME (ptr, acc); | |
3475 | decl = do_resolve_class (NULL_TREE, ptr, NULL_TREE, cl); | |
3476 | } | |
3477 | ||
3478 | /* A NULL qual and a decl means that the search ended | |
3479 | successfully?!? We have to do something then. FIXME */ | |
3480 | ||
3481 | if (decl) | |
3482 | enclosing = decl; | |
3483 | else | |
3484 | qual = EXPR_WFL_QUALIFICATION (cl); | |
3485 | } | |
3486 | /* Otherwise, create a qual for the other part of the resolution. */ | |
3487 | else | |
3488 | qual = build_tree_list (build_expr_wfl (name, NULL, 0, 0), NULL_TREE); | |
3489 | ||
3490 | return find_as_inner_class_do (qual, enclosing); | |
3491 | } | |
3492 | ||
3493 | /* We go inside the list of sub classes and try to find a way | |
3494 | through. */ | |
3495 | ||
3496 | static tree | |
3497 | find_as_inner_class_do (qual, enclosing) | |
3498 | tree qual, enclosing; | |
3499 | { | |
3500 | if (!qual) | |
3501 | return NULL_TREE; | |
3502 | ||
3503 | for (; qual && enclosing; qual = TREE_CHAIN (qual)) | |
3504 | { | |
3505 | tree name_to_match = EXPR_WFL_NODE (TREE_PURPOSE (qual)); | |
3506 | tree next_enclosing = NULL_TREE; | |
3507 | tree inner_list; | |
3508 | ||
3509 | for (inner_list = DECL_INNER_CLASS_LIST (enclosing); | |
3510 | inner_list; inner_list = TREE_CHAIN (inner_list)) | |
3511 | { | |
3512 | if (TREE_VALUE (inner_list) == name_to_match) | |
3513 | { | |
3514 | next_enclosing = TREE_PURPOSE (inner_list); | |
3515 | break; | |
3516 | } | |
3517 | } | |
3518 | enclosing = next_enclosing; | |
3519 | } | |
3520 | ||
3521 | return (!qual && enclosing ? enclosing : NULL_TREE); | |
3522 | } | |
3523 | ||
3524 | /* Reach all inner classes and tie their unqualified name to a | |
3525 | DECL. */ | |
3526 | ||
3527 | static void | |
3528 | set_nested_class_simple_name_value (outer, set) | |
3529 | tree outer; | |
3530 | int set; | |
3531 | { | |
3532 | tree l; | |
3533 | ||
3534 | for (l = DECL_INNER_CLASS_LIST (outer); l; l = TREE_CHAIN (l)) | |
3535 | IDENTIFIER_GLOBAL_VALUE (TREE_VALUE (l)) = (set ? | |
3536 | TREE_PURPOSE (l) : NULL_TREE); | |
3537 | } | |
3538 | ||
3539 | static void | |
3540 | link_nested_class_to_enclosing () | |
3541 | { | |
3542 | if (GET_ENCLOSING_CPC ()) | |
3543 | { | |
3544 | tree enclosing = GET_ENCLOSING_CPC_CONTEXT (); | |
3545 | DECL_INNER_CLASS_LIST (enclosing) = | |
3546 | tree_cons (GET_CPC (), GET_CPC_UN (), | |
3547 | DECL_INNER_CLASS_LIST (enclosing)); | |
3548 | enclosing = enclosing; | |
3549 | } | |
3550 | } | |
3551 | ||
3552 | static tree | |
3553 | maybe_make_nested_class_name (name) | |
3554 | tree name; | |
3555 | { | |
3556 | tree id = NULL_TREE; | |
3557 | ||
3558 | if (CPC_INNER_P ()) | |
3559 | { | |
3560 | make_nested_class_name (GET_CPC_LIST ()); | |
48a840d9 APB |
3561 | obstack_grow0 (&temporary_obstack, |
3562 | IDENTIFIER_POINTER (name), | |
3563 | IDENTIFIER_LENGTH (name)); | |
c2952b01 APB |
3564 | id = get_identifier (obstack_finish (&temporary_obstack)); |
3565 | if (ctxp->package) | |
3566 | QUALIFIED_P (id) = 1; | |
3567 | } | |
3568 | return id; | |
3569 | } | |
3570 | ||
3571 | /* If DECL is NULL, create and push a new DECL, record the current | |
3572 | line CL and do other maintenance things. */ | |
3573 | ||
e04a16fb | 3574 | static tree |
c2952b01 APB |
3575 | maybe_create_class_interface_decl (decl, raw_name, qualified_name, cl) |
3576 | tree decl, raw_name, qualified_name, cl; | |
e04a16fb | 3577 | { |
5e942c50 | 3578 | if (!decl) |
e04a16fb | 3579 | decl = push_class (make_class (), qualified_name); |
c2952b01 | 3580 | |
e04a16fb AG |
3581 | /* Take care of the file and line business */ |
3582 | DECL_SOURCE_FILE (decl) = EXPR_WFL_FILENAME (cl); | |
f099f336 APB |
3583 | /* If we're emiting xrefs, store the line/col number information */ |
3584 | if (flag_emit_xref) | |
3585 | DECL_SOURCE_LINE (decl) = EXPR_WFL_LINECOL (cl); | |
3586 | else | |
3587 | DECL_SOURCE_LINE (decl) = EXPR_WFL_LINENO (cl); | |
e04a16fb | 3588 | CLASS_FROM_SOURCE_P (TREE_TYPE (decl)) = 1; |
b351b287 APB |
3589 | CLASS_FROM_CURRENTLY_COMPILED_SOURCE_P (TREE_TYPE (decl)) = |
3590 | IS_A_COMMAND_LINE_FILENAME_P (EXPR_WFL_FILENAME_NODE (cl)); | |
e04a16fb | 3591 | |
c2952b01 APB |
3592 | PUSH_CPC (decl, raw_name); |
3593 | DECL_CONTEXT (decl) = GET_ENCLOSING_CPC_CONTEXT (); | |
3594 | ||
e04a16fb AG |
3595 | /* Link the declaration to the already seen ones */ |
3596 | TREE_CHAIN (decl) = ctxp->class_list; | |
3597 | ctxp->class_list = decl; | |
5e942c50 | 3598 | |
23a79c61 | 3599 | /* Create a new nodes in the global lists */ |
5e942c50 | 3600 | ctxp->gclass_list = tree_cons (NULL_TREE, decl, ctxp->gclass_list); |
23a79c61 | 3601 | all_class_list = tree_cons (NULL_TREE, decl, all_class_list); |
5e942c50 | 3602 | |
e04a16fb AG |
3603 | /* Install a new dependency list element */ |
3604 | create_jdep_list (ctxp); | |
3605 | ||
3606 | SOURCE_FRONTEND_DEBUG (("Defining class/interface %s", | |
3607 | IDENTIFIER_POINTER (qualified_name))); | |
3608 | return decl; | |
3609 | } | |
3610 | ||
3611 | static void | |
3612 | add_superinterfaces (decl, interface_list) | |
3613 | tree decl, interface_list; | |
3614 | { | |
3615 | tree node; | |
3616 | /* Superinterface(s): if present and defined, parser_check_super_interface () | |
3617 | takes care of ensuring that: | |
3618 | - This is an accessible interface type, | |
3619 | - Circularity detection. | |
3620 | parser_add_interface is then called. If present but not defined, | |
3621 | the check operation is delayed until the super interface gets | |
3622 | defined. */ | |
3623 | for (node = interface_list; node; node = TREE_CHAIN (node)) | |
3624 | { | |
15fdcfe9 | 3625 | tree current = TREE_PURPOSE (node); |
5e942c50 APB |
3626 | tree idecl = IDENTIFIER_CLASS_VALUE (EXPR_WFL_NODE (current)); |
3627 | if (idecl && CLASS_LOADED_P (TREE_TYPE (idecl))) | |
e04a16fb | 3628 | { |
5e942c50 APB |
3629 | if (!parser_check_super_interface (idecl, decl, current)) |
3630 | parser_add_interface (decl, idecl, current); | |
e04a16fb AG |
3631 | } |
3632 | else | |
3633 | register_incomplete_type (JDEP_INTERFACE, | |
3634 | current, decl, NULL_TREE); | |
3635 | } | |
3636 | } | |
3637 | ||
3638 | /* Create an interface in pass1 and return its decl. Return the | |
3639 | interface's decl in pass 2. */ | |
3640 | ||
3641 | static tree | |
3642 | create_interface (flags, id, super) | |
3643 | int flags; | |
3644 | tree id, super; | |
3645 | { | |
e04a16fb | 3646 | tree raw_name = EXPR_WFL_NODE (id); |
c2952b01 | 3647 | tree q_name = parser_qualified_classname (flags & ACC_STATIC, raw_name); |
e04a16fb AG |
3648 | tree decl = IDENTIFIER_CLASS_VALUE (q_name); |
3649 | ||
3650 | EXPR_WFL_NODE (id) = q_name; /* Keep source location, even if refined. */ | |
3651 | ||
3652 | /* Basic checks: scope, redefinition, modifiers */ | |
3653 | if (check_class_interface_creation (1, flags, raw_name, q_name, decl, id)) | |
c2952b01 APB |
3654 | { |
3655 | PUSH_ERROR (); | |
3656 | return NULL_TREE; | |
3657 | } | |
3658 | ||
3659 | /* Suspend the current parsing context if we're parsing an inner | |
3660 | interface */ | |
3661 | if (CPC_INNER_P ()) | |
3662 | java_parser_context_suspend (); | |
3663 | ||
3664 | /* Push a new context for (static) initialized upon declaration fields */ | |
3665 | java_parser_context_push_initialized_field (); | |
e04a16fb AG |
3666 | |
3667 | /* Interface modifiers check | |
3668 | - public/abstract allowed (already done at that point) | |
3669 | - abstract is obsolete (comes first, it's a warning, or should be) | |
3670 | - Can't use twice the same (checked in the modifier rule) */ | |
c877974e | 3671 | if ((flags & ACC_ABSTRACT) && flag_redundant) |
e04a16fb AG |
3672 | parse_warning_context |
3673 | (MODIFIER_WFL (ABSTRACT_TK), | |
781b0558 | 3674 | "Redundant use of `abstract' modifier. Interface `%s' is implicitely abstract", IDENTIFIER_POINTER (raw_name)); |
e04a16fb AG |
3675 | |
3676 | /* Create a new decl if DECL is NULL, otherwise fix it */ | |
c2952b01 | 3677 | decl = maybe_create_class_interface_decl (decl, raw_name, q_name, id); |
e04a16fb AG |
3678 | |
3679 | /* Set super info and mark the class a complete */ | |
2aa11e97 | 3680 | set_super_info (ACC_INTERFACE | flags, TREE_TYPE (decl), |
e04a16fb AG |
3681 | object_type_node, ctxp->interface_number); |
3682 | ctxp->interface_number = 0; | |
3683 | CLASS_COMPLETE_P (decl) = 1; | |
3684 | add_superinterfaces (decl, super); | |
3685 | ||
3686 | return decl; | |
3687 | } | |
3688 | ||
c2952b01 APB |
3689 | /* Anonymous class counter. Will be reset to 1 every time a non |
3690 | anonymous class gets created. */ | |
3691 | static int anonymous_class_counter = 1; | |
3692 | ||
3693 | /* Patch anonymous class CLASS, by either extending or implementing | |
3694 | DEP. */ | |
3695 | ||
3696 | static void | |
3697 | patch_anonymous_class (type_decl, class_decl, wfl) | |
3698 | tree type_decl, class_decl, wfl; | |
3699 | { | |
3700 | tree class = TREE_TYPE (class_decl); | |
3701 | tree type = TREE_TYPE (type_decl); | |
3702 | tree binfo = TYPE_BINFO (class); | |
3703 | ||
3704 | /* If it's an interface, implement it */ | |
3705 | if (CLASS_INTERFACE (type_decl)) | |
3706 | { | |
3707 | tree s_binfo; | |
3708 | int length; | |
3709 | ||
3710 | if (parser_check_super_interface (type_decl, class_decl, wfl)) | |
3711 | return; | |
3712 | ||
3713 | s_binfo = TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (class)), 0); | |
3714 | length = TREE_VEC_LENGTH (TYPE_BINFO_BASETYPES (class))+1; | |
3715 | TYPE_BINFO_BASETYPES (class) = make_tree_vec (length); | |
3716 | TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (class)), 0) = s_binfo; | |
3717 | /* And add the interface */ | |
3718 | parser_add_interface (class_decl, type_decl, wfl); | |
3719 | } | |
3720 | /* Otherwise, it's a type we want to extend */ | |
3721 | else | |
3722 | { | |
3723 | if (parser_check_super (type_decl, class_decl, wfl)) | |
3724 | return; | |
3725 | BINFO_TYPE (TREE_VEC_ELT (BINFO_BASETYPES (binfo), 0)) = type; | |
3726 | } | |
3727 | } | |
3728 | ||
3729 | static tree | |
3730 | create_anonymous_class (location, type_name) | |
3731 | int location; | |
3732 | tree type_name; | |
3733 | { | |
3734 | char buffer [80]; | |
3735 | tree super = NULL_TREE, itf = NULL_TREE; | |
3736 | tree id, type_decl, class; | |
3737 | ||
3738 | /* The unqualified name of the anonymous class. It's just a number. */ | |
3739 | sprintf (buffer, "%d", anonymous_class_counter++); | |
3740 | id = build_wfl_node (get_identifier (buffer)); | |
3741 | EXPR_WFL_LINECOL (id) = location; | |
3742 | ||
3743 | /* We know about the type to extend/implement. We go ahead */ | |
3744 | if ((type_decl = IDENTIFIER_CLASS_VALUE (EXPR_WFL_NODE (type_name)))) | |
3745 | { | |
3746 | /* Create a class which either implements on extends the designated | |
3747 | class. The class bears an innacessible name. */ | |
3748 | if (CLASS_INTERFACE (type_decl)) | |
3749 | { | |
3750 | /* It's OK to modify it here. It's been already used and | |
3751 | shouldn't be reused */ | |
3752 | ctxp->interface_number = 1; | |
3753 | /* Interfaces should presented as a list of WFLs */ | |
3754 | itf = build_tree_list (type_name, NULL_TREE); | |
3755 | } | |
3756 | else | |
3757 | super = type_name; | |
3758 | } | |
3759 | ||
3760 | class = create_class (ACC_FINAL, id, super, itf); | |
3761 | ||
3762 | /* We didn't know anything about the stuff. We register a dependence. */ | |
3763 | if (!type_decl) | |
3764 | register_incomplete_type (JDEP_ANONYMOUS, type_name, class, NULL_TREE); | |
3765 | ||
3766 | ANONYMOUS_CLASS_P (TREE_TYPE (class)) = 1; | |
3767 | return class; | |
3768 | } | |
3769 | ||
a40d21da | 3770 | /* Create a class in pass1 and return its decl. Return class |
e04a16fb AG |
3771 | interface's decl in pass 2. */ |
3772 | ||
3773 | static tree | |
3774 | create_class (flags, id, super, interfaces) | |
3775 | int flags; | |
3776 | tree id, super, interfaces; | |
3777 | { | |
e04a16fb AG |
3778 | tree raw_name = EXPR_WFL_NODE (id); |
3779 | tree class_id, decl; | |
9ee9b555 | 3780 | tree super_decl_type; |
e04a16fb | 3781 | |
c2952b01 | 3782 | class_id = parser_qualified_classname (0, raw_name); |
e04a16fb AG |
3783 | decl = IDENTIFIER_CLASS_VALUE (class_id); |
3784 | EXPR_WFL_NODE (id) = class_id; | |
3785 | ||
3786 | /* Basic check: scope, redefinition, modifiers */ | |
3787 | if (check_class_interface_creation (0, flags, raw_name, class_id, decl, id)) | |
c2952b01 APB |
3788 | { |
3789 | PUSH_ERROR (); | |
3790 | return NULL_TREE; | |
3791 | } | |
3792 | ||
3793 | /* Suspend the current parsing context if we're parsing an inner | |
3794 | class or an anonymous class. */ | |
3795 | if (CPC_INNER_P ()) | |
3796 | java_parser_context_suspend (); | |
3797 | /* Push a new context for (static) initialized upon declaration fields */ | |
3798 | java_parser_context_push_initialized_field (); | |
e04a16fb AG |
3799 | |
3800 | /* Class modifier check: | |
3801 | - Allowed modifier (already done at that point) | |
3802 | - abstract AND final forbidden | |
3803 | - Public classes defined in the correct file */ | |
3804 | if ((flags & ACC_ABSTRACT) && (flags & ACC_FINAL)) | |
781b0558 KG |
3805 | parse_error_context |
3806 | (id, "Class `%s' can't be declared both abstract and final", | |
3807 | IDENTIFIER_POINTER (raw_name)); | |
e04a16fb AG |
3808 | |
3809 | /* Create a new decl if DECL is NULL, otherwise fix it */ | |
c2952b01 | 3810 | decl = maybe_create_class_interface_decl (decl, raw_name, class_id, id); |
e04a16fb AG |
3811 | |
3812 | /* If SUPER exists, use it, otherwise use Object */ | |
3813 | if (super) | |
3814 | { | |
3815 | /* Can't extend java.lang.Object */ | |
3816 | if (TREE_TYPE (IDENTIFIER_CLASS_VALUE (class_id)) == object_type_node) | |
3817 | { | |
3818 | parse_error_context (id, "Can't extend `java.lang.Object'"); | |
3819 | return NULL_TREE; | |
3820 | } | |
3821 | ||
2c3199bc PB |
3822 | super_decl_type = |
3823 | register_incomplete_type (JDEP_SUPER, super, decl, NULL_TREE); | |
e04a16fb AG |
3824 | } |
3825 | else if (TREE_TYPE (decl) != object_type_node) | |
3826 | super_decl_type = object_type_node; | |
3827 | /* We're defining java.lang.Object */ | |
3828 | else | |
3829 | super_decl_type = NULL_TREE; | |
3830 | ||
3831 | /* Set super info and mark the class a complete */ | |
3832 | set_super_info (flags, TREE_TYPE (decl), super_decl_type, | |
3833 | ctxp->interface_number); | |
3834 | ctxp->interface_number = 0; | |
3835 | CLASS_COMPLETE_P (decl) = 1; | |
3836 | add_superinterfaces (decl, interfaces); | |
3837 | ||
c2952b01 APB |
3838 | /* If the class is a top level inner class, install an alias. */ |
3839 | if (INNER_CLASS_DECL_P (decl) && CLASS_STATIC (decl)) | |
3840 | { | |
3841 | tree alias = parser_qualified_classname (1, raw_name); | |
3842 | IDENTIFIER_GLOBAL_VALUE (alias) = decl; | |
3843 | } | |
3844 | ||
3845 | /* Add the private this$<n> field, Replicate final locals still in | |
3846 | scope as private final fields mangled like val$<local_name>. | |
3847 | This doesn't not occur for top level (static) inner classes. */ | |
3848 | if (PURE_INNER_CLASS_DECL_P (decl)) | |
3849 | add_inner_class_fields (decl, current_function_decl); | |
3850 | ||
7f10c2e2 APB |
3851 | /* If doing xref, store the location at which the inherited class |
3852 | (if any) was seen. */ | |
3853 | if (flag_emit_xref && super) | |
3854 | DECL_INHERITED_SOURCE_LINE (decl) = EXPR_WFL_LINECOL (super); | |
3855 | ||
5e942c50 APB |
3856 | /* Eventually sets the @deprecated tag flag */ |
3857 | CHECK_DEPRECATED (decl); | |
3858 | ||
165f37bc APB |
3859 | /* Reset the anonymous class counter when declaring non inner classes */ |
3860 | if (!INNER_CLASS_DECL_P (decl)) | |
c2952b01 APB |
3861 | anonymous_class_counter = 1; |
3862 | ||
e04a16fb AG |
3863 | return decl; |
3864 | } | |
3865 | ||
c2952b01 APB |
3866 | /* End a class declaration: register the statements used to create |
3867 | $finit$ and <clinit>, pop the current class and resume the prior | |
3868 | parser context if necessary. */ | |
3869 | ||
3870 | static void | |
3871 | end_class_declaration (resume) | |
3872 | int resume; | |
3873 | { | |
3874 | /* If an error occured, context weren't pushed and won't need to be | |
3875 | popped by a resume. */ | |
3876 | int no_error_occured = ctxp->next && GET_CPC () != error_mark_node; | |
3877 | ||
3878 | java_parser_context_pop_initialized_field (); | |
3879 | POP_CPC (); | |
3880 | if (resume && no_error_occured) | |
3881 | java_parser_context_resume (); | |
93220702 APB |
3882 | |
3883 | /* We're ending a class declaration, this is a good time to reset | |
3884 | the interface cout. Note that might have been already done in | |
3885 | create_interface, but if at that time an inner class was being | |
3886 | dealt with, the interface count was reset in a context created | |
3887 | for the sake of handling inner classes declaration. */ | |
3888 | ctxp->interface_number = 0; | |
c2952b01 APB |
3889 | } |
3890 | ||
3891 | static void | |
3892 | add_inner_class_fields (class_decl, fct_decl) | |
3893 | tree class_decl; | |
3894 | tree fct_decl; | |
3895 | { | |
3896 | tree block, marker, f; | |
3897 | ||
3898 | f = add_field (TREE_TYPE (class_decl), | |
3899 | build_current_thisn (TREE_TYPE (class_decl)), | |
3900 | build_pointer_type (TREE_TYPE (DECL_CONTEXT (class_decl))), | |
3901 | ACC_PRIVATE); | |
3902 | FIELD_THISN (f) = 1; | |
3903 | ||
3904 | if (!fct_decl) | |
3905 | return; | |
3906 | ||
3907 | for (block = GET_CURRENT_BLOCK (fct_decl); | |
3908 | block && TREE_CODE (block) == BLOCK; block = BLOCK_SUPERCONTEXT (block)) | |
3909 | { | |
3910 | tree decl; | |
3911 | for (decl = BLOCK_EXPR_DECLS (block); decl; decl = TREE_CHAIN (decl)) | |
3912 | { | |
3913 | char *name, *pname; | |
3914 | tree wfl, init, list; | |
3915 | ||
3916 | /* Avoid non final arguments. */ | |
3917 | if (!LOCAL_FINAL (decl)) | |
3918 | continue; | |
3919 | ||
3920 | MANGLE_OUTER_LOCAL_VARIABLE_NAME (name, DECL_NAME (decl)); | |
3921 | MANGLE_ALIAS_INITIALIZER_PARAMETER_NAME_ID (pname, DECL_NAME (decl)); | |
3922 | wfl = build_wfl_node (get_identifier (name)); | |
3923 | init = build_wfl_node (get_identifier (pname)); | |
3924 | /* Build an initialization for the field: it will be | |
3925 | initialized by a parameter added to $finit$, bearing a | |
3926 | mangled name of the field itself (param$<n>.) The | |
3927 | parameter is provided to $finit$ by the constructor | |
3928 | invoking it (hence the constructor will also feature a | |
3929 | hidden parameter, set to the value of the outer context | |
3930 | local at the time the inner class is created.) | |
3931 | ||
3932 | Note: we take into account all possible locals that can | |
3933 | be accessed by the inner class. It's actually not trivial | |
3934 | to minimize these aliases down to the ones really | |
3935 | used. One way to do that would be to expand all regular | |
3936 | methods first, then $finit$ to get a picture of what's | |
3937 | used. It works with the exception that we would have to | |
3938 | go back on all constructor invoked in regular methods to | |
3939 | have their invokation reworked (to include the right amount | |
3940 | of alias initializer parameters.) | |
3941 | ||
3942 | The only real way around, I think, is a first pass to | |
3943 | identify locals really used in the inner class. We leave | |
3944 | the flag FIELD_LOCAL_ALIAS_USED around for that future | |
3945 | use. | |
3946 | ||
3947 | On the other hand, it only affect local inner classes, | |
3948 | whose constructors (and $finit$ call) will be featuring | |
3949 | unecessary arguments. It's easy for a developper to keep | |
3950 | this number of parameter down by using the `final' | |
3951 | keyword only when necessary. For the time being, we can | |
3952 | issue a warning on unecessary finals. FIXME */ | |
3953 | init = build_assignment (ASSIGN_TK, EXPR_WFL_LINECOL (wfl), | |
3954 | wfl, init); | |
3955 | ||
3956 | /* Register the field. The TREE_LIST holding the part | |
3957 | initialized/initializer will be marked ARG_FINAL_P so | |
3958 | that the created field can be marked | |
3959 | FIELD_LOCAL_ALIAS. */ | |
3960 | list = build_tree_list (wfl, init); | |
3961 | ARG_FINAL_P (list) = 1; | |
3962 | register_fields (ACC_PRIVATE | ACC_FINAL, TREE_TYPE (decl), list); | |
3963 | } | |
3964 | } | |
3965 | ||
3966 | if (!CPC_INITIALIZER_STMT (ctxp)) | |
3967 | return; | |
3968 | ||
3969 | /* If we ever registered an alias field, insert and marker to | |
3970 | remeber where the list ends. The second part of the list (the one | |
3971 | featuring initialized fields) so it can be later reversed to | |
3972 | enforce 8.5. The marker will be removed during that operation. */ | |
3973 | marker = build_tree_list (NULL_TREE, NULL_TREE); | |
3974 | TREE_CHAIN (marker) = CPC_INITIALIZER_STMT (ctxp); | |
3975 | SET_CPC_INITIALIZER_STMT (ctxp, marker); | |
3976 | } | |
3977 | ||
e04a16fb AG |
3978 | /* Can't use lookup_field () since we don't want to load the class and |
3979 | can't set the CLASS_LOADED_P flag */ | |
3980 | ||
3981 | static tree | |
3982 | find_field (class, name) | |
3983 | tree class; | |
3984 | tree name; | |
3985 | { | |
3986 | tree decl; | |
3987 | for (decl = TYPE_FIELDS (class); decl; decl = TREE_CHAIN (decl)) | |
3988 | { | |
3989 | if (DECL_NAME (decl) == name) | |
3990 | return decl; | |
3991 | } | |
3992 | return NULL_TREE; | |
3993 | } | |
3994 | ||
3995 | /* Wrap around lookup_field that doesn't potentially upset the value | |
3996 | of CLASS */ | |
3997 | ||
3998 | static tree | |
3999 | lookup_field_wrapper (class, name) | |
4000 | tree class, name; | |
4001 | { | |
4002 | tree type = class; | |
9a7ab4b3 | 4003 | tree decl = NULL_TREE; |
c877974e | 4004 | java_parser_context_save_global (); |
f2760b27 APB |
4005 | |
4006 | /* Last chance: if we're within the context of an inner class, we | |
4007 | might be trying to access a local variable defined in an outer | |
4008 | context. We try to look for it now. */ | |
9a7ab4b3 | 4009 | if (INNER_CLASS_TYPE_P (class)) |
f2760b27 APB |
4010 | { |
4011 | char *alias_buffer; | |
9a7ab4b3 | 4012 | tree new_name; |
f2760b27 | 4013 | MANGLE_OUTER_LOCAL_VARIABLE_NAME (alias_buffer, name); |
9a7ab4b3 APB |
4014 | new_name = get_identifier (alias_buffer); |
4015 | decl = lookup_field (&type, new_name); | |
f2760b27 APB |
4016 | if (decl && decl != error_mark_node) |
4017 | FIELD_LOCAL_ALIAS_USED (decl) = 1; | |
4018 | } | |
9a7ab4b3 APB |
4019 | if (!decl || decl == error_mark_node) |
4020 | { | |
4021 | type = class; | |
4022 | decl = lookup_field (&type, name); | |
4023 | } | |
f2760b27 | 4024 | |
c877974e | 4025 | java_parser_context_restore_global (); |
93024893 | 4026 | return decl == error_mark_node ? NULL : decl; |
e04a16fb AG |
4027 | } |
4028 | ||
4029 | /* Find duplicate field within the same class declarations and report | |
c583dd46 APB |
4030 | the error. Returns 1 if a duplicated field was found, 0 |
4031 | otherwise. */ | |
e04a16fb AG |
4032 | |
4033 | static int | |
c583dd46 | 4034 | duplicate_declaration_error_p (new_field_name, new_type, cl) |
0a2138e2 | 4035 | tree new_field_name, new_type, cl; |
e04a16fb AG |
4036 | { |
4037 | /* This might be modified to work with method decl as well */ | |
c2952b01 | 4038 | tree decl = find_field (TREE_TYPE (GET_CPC ()), new_field_name); |
e04a16fb AG |
4039 | if (decl) |
4040 | { | |
c2e3db92 | 4041 | char *t1 = xstrdup (purify_type_name |
4a5f66c3 APB |
4042 | ((TREE_CODE (new_type) == POINTER_TYPE |
4043 | && TREE_TYPE (new_type) == NULL_TREE) ? | |
4044 | IDENTIFIER_POINTER (TYPE_NAME (new_type)) : | |
4045 | lang_printable_name (new_type, 1))); | |
c877974e APB |
4046 | /* The type may not have been completed by the time we report |
4047 | the error */ | |
c2e3db92 | 4048 | char *t2 = xstrdup (purify_type_name |
4a5f66c3 | 4049 | ((TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE |
c877974e APB |
4050 | && TREE_TYPE (TREE_TYPE (decl)) == NULL_TREE) ? |
4051 | IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))) : | |
4052 | lang_printable_name (TREE_TYPE (decl), 1))); | |
e04a16fb AG |
4053 | parse_error_context |
4054 | (cl , "Duplicate variable declaration: `%s %s' was `%s %s' (%s:%d)", | |
4055 | t1, IDENTIFIER_POINTER (new_field_name), | |
4056 | t2, IDENTIFIER_POINTER (DECL_NAME (decl)), | |
4057 | DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl)); | |
4058 | free (t1); | |
4059 | free (t2); | |
c583dd46 | 4060 | return 1; |
e04a16fb | 4061 | } |
c583dd46 | 4062 | return 0; |
e04a16fb AG |
4063 | } |
4064 | ||
4065 | /* Field registration routine. If TYPE doesn't exist, field | |
4066 | declarations are linked to the undefined TYPE dependency list, to | |
4067 | be later resolved in java_complete_class () */ | |
4068 | ||
4069 | static void | |
4070 | register_fields (flags, type, variable_list) | |
4071 | int flags; | |
4072 | tree type, variable_list; | |
4073 | { | |
c583dd46 | 4074 | tree current, saved_type; |
c2952b01 | 4075 | tree class_type = NULL_TREE; |
e04a16fb AG |
4076 | int saved_lineno = lineno; |
4077 | int must_chain = 0; | |
4078 | tree wfl = NULL_TREE; | |
4079 | ||
c2952b01 APB |
4080 | if (GET_CPC ()) |
4081 | class_type = TREE_TYPE (GET_CPC ()); | |
4082 | ||
4083 | if (!class_type || class_type == error_mark_node) | |
4084 | return; | |
4085 | ||
e04a16fb AG |
4086 | /* If we're adding fields to interfaces, those fields are public, |
4087 | static, final */ | |
4088 | if (CLASS_INTERFACE (TYPE_NAME (class_type))) | |
4089 | { | |
4090 | OBSOLETE_MODIFIER_WARNING (MODIFIER_WFL (PUBLIC_TK), | |
2884c41e | 4091 | flags, ACC_PUBLIC, "interface field(s)"); |
e04a16fb | 4092 | OBSOLETE_MODIFIER_WARNING (MODIFIER_WFL (STATIC_TK), |
2884c41e | 4093 | flags, ACC_STATIC, "interface field(s)"); |
e04a16fb | 4094 | OBSOLETE_MODIFIER_WARNING (MODIFIER_WFL (FINAL_TK), |
2884c41e | 4095 | flags, ACC_FINAL, "interface field(s)"); |
e04a16fb AG |
4096 | check_modifiers ("Illegal interface member modifier `%s'", flags, |
4097 | INTERFACE_FIELD_MODIFIERS); | |
4098 | flags |= (ACC_PUBLIC | ACC_STATIC | ACC_FINAL); | |
4099 | } | |
4100 | ||
c583dd46 APB |
4101 | /* Obtain a suitable type for resolution, if necessary */ |
4102 | SET_TYPE_FOR_RESOLUTION (type, wfl, must_chain); | |
4103 | ||
4104 | /* If TYPE is fully resolved and we don't have a reference, make one */ | |
1886c9d8 | 4105 | PROMOTE_RECORD_IF_COMPLETE (type, must_chain); |
e04a16fb | 4106 | |
c583dd46 APB |
4107 | for (current = variable_list, saved_type = type; current; |
4108 | current = TREE_CHAIN (current), type = saved_type) | |
e04a16fb | 4109 | { |
c877974e | 4110 | tree real_type; |
c583dd46 | 4111 | tree field_decl; |
e04a16fb AG |
4112 | tree cl = TREE_PURPOSE (current); |
4113 | tree init = TREE_VALUE (current); | |
4114 | tree current_name = EXPR_WFL_NODE (cl); | |
4115 | ||
c2952b01 APB |
4116 | /* Can't declare static fields in inner classes */ |
4117 | if ((flags & ACC_STATIC) && !TOPLEVEL_CLASS_TYPE_P (class_type) | |
4118 | && !CLASS_INTERFACE (TYPE_NAME (class_type))) | |
4119 | parse_error_context | |
4120 | (cl, "Field `%s' can't be static in innerclass `%s'. Only members of interfaces and top-level classes can be static", | |
4121 | IDENTIFIER_POINTER (EXPR_WFL_NODE (cl)), | |
4122 | lang_printable_name (class_type, 0)); | |
4123 | ||
c583dd46 APB |
4124 | /* Process NAME, as it may specify extra dimension(s) for it */ |
4125 | type = build_array_from_name (type, wfl, current_name, ¤t_name); | |
4126 | ||
c583dd46 APB |
4127 | /* Type adjustment. We may have just readjusted TYPE because |
4128 | the variable specified more dimensions. Make sure we have | |
22eed1e6 APB |
4129 | a reference if we can and don't have one already. Also |
4130 | change the name if we have an init. */ | |
4131 | if (type != saved_type) | |
4132 | { | |
1886c9d8 | 4133 | PROMOTE_RECORD_IF_COMPLETE (type, must_chain); |
22eed1e6 APB |
4134 | if (init) |
4135 | EXPR_WFL_NODE (TREE_OPERAND (init, 0)) = current_name; | |
4136 | } | |
e04a16fb | 4137 | |
c877974e APB |
4138 | real_type = GET_REAL_TYPE (type); |
4139 | /* Check for redeclarations */ | |
4140 | if (duplicate_declaration_error_p (current_name, real_type, cl)) | |
4141 | continue; | |
4142 | ||
c583dd46 | 4143 | /* Set lineno to the line the field was found and create a |
5e942c50 | 4144 | declaration for it. Eventually sets the @deprecated tag flag. */ |
f099f336 APB |
4145 | if (flag_emit_xref) |
4146 | lineno = EXPR_WFL_LINECOL (cl); | |
4147 | else | |
4148 | lineno = EXPR_WFL_LINENO (cl); | |
c877974e | 4149 | field_decl = add_field (class_type, current_name, real_type, flags); |
5e942c50 | 4150 | CHECK_DEPRECATED (field_decl); |
c2952b01 APB |
4151 | |
4152 | /* If the couple initializer/initialized is marked ARG_FINAL_P, we | |
4153 | mark the created field FIELD_LOCAL_ALIAS, so that we can | |
4154 | hide parameters to this inner class $finit$ and constructors. */ | |
4155 | if (ARG_FINAL_P (current)) | |
4156 | FIELD_LOCAL_ALIAS (field_decl) = 1; | |
c583dd46 APB |
4157 | |
4158 | /* Check if we must chain. */ | |
4159 | if (must_chain) | |
4160 | register_incomplete_type (JDEP_FIELD, wfl, field_decl, type); | |
e04a16fb | 4161 | |
c583dd46 APB |
4162 | /* If we have an initialization value tied to the field */ |
4163 | if (init) | |
4164 | { | |
4165 | /* The field is declared static */ | |
e04a16fb | 4166 | if (flags & ACC_STATIC) |
e04a16fb | 4167 | { |
7525cc04 APB |
4168 | /* We include the field and its initialization part into |
4169 | a list used to generate <clinit>. After <clinit> is | |
ba179f9f APB |
4170 | walked, field initializations will be processed and |
4171 | fields initialized with known constants will be taken | |
4172 | out of <clinit> and have their DECL_INITIAL set | |
7525cc04 | 4173 | appropriately. */ |
c2952b01 APB |
4174 | TREE_CHAIN (init) = CPC_STATIC_INITIALIZER_STMT (ctxp); |
4175 | SET_CPC_STATIC_INITIALIZER_STMT (ctxp, init); | |
7f10c2e2 APB |
4176 | if (TREE_OPERAND (init, 1) |
4177 | && TREE_CODE (TREE_OPERAND (init, 1)) == NEW_ARRAY_INIT) | |
5bba4807 | 4178 | TREE_STATIC (TREE_OPERAND (init, 1)) = 1; |
e04a16fb | 4179 | } |
5e942c50 APB |
4180 | /* A non-static field declared with an immediate initialization is |
4181 | to be initialized in <init>, if any. This field is remembered | |
4182 | to be processed at the time of the generation of <init>. */ | |
c583dd46 APB |
4183 | else |
4184 | { | |
c2952b01 APB |
4185 | TREE_CHAIN (init) = CPC_INITIALIZER_STMT (ctxp); |
4186 | SET_CPC_INITIALIZER_STMT (ctxp, init); | |
c583dd46 | 4187 | } |
5b09b33e | 4188 | MODIFY_EXPR_FROM_INITIALIZATION_P (init) = 1; |
8576f094 | 4189 | DECL_INITIAL (field_decl) = TREE_OPERAND (init, 1); |
e04a16fb AG |
4190 | } |
4191 | } | |
4192 | lineno = saved_lineno; | |
4193 | } | |
4194 | ||
c2952b01 APB |
4195 | /* Generate $finit$, using the list of initialized fields to populate |
4196 | its body. $finit$'s parameter(s) list is adjusted to include the | |
4197 | one(s) used to initialized the field(s) caching outer context | |
4198 | local(s). */ | |
22eed1e6 | 4199 | |
c2952b01 APB |
4200 | static tree |
4201 | generate_finit (class_type) | |
4202 | tree class_type; | |
22eed1e6 | 4203 | { |
c2952b01 APB |
4204 | int count = 0; |
4205 | tree list = TYPE_FINIT_STMT_LIST (class_type); | |
4206 | tree mdecl, current, parms; | |
4207 | ||
4208 | parms = build_alias_initializer_parameter_list (AIPL_FUNCTION_CREATION, | |
4209 | class_type, NULL_TREE, | |
4210 | &count); | |
4211 | CRAFTED_PARAM_LIST_FIXUP (parms); | |
4212 | mdecl = create_artificial_method (class_type, ACC_PRIVATE, void_type_node, | |
4213 | finit_identifier_node, parms); | |
4214 | fix_method_argument_names (parms, mdecl); | |
4215 | layout_class_method (class_type, CLASSTYPE_SUPER (class_type), | |
4216 | mdecl, NULL_TREE); | |
4217 | DECL_FUNCTION_NAP (mdecl) = count; | |
22eed1e6 APB |
4218 | start_artificial_method_body (mdecl); |
4219 | ||
c2952b01 | 4220 | for (current = list; current; current = TREE_CHAIN (current)) |
22eed1e6 APB |
4221 | java_method_add_stmt (mdecl, |
4222 | build_debugable_stmt (EXPR_WFL_LINECOL (current), | |
4223 | current)); | |
22eed1e6 | 4224 | end_artificial_method_body (mdecl); |
c2952b01 | 4225 | return mdecl; |
22eed1e6 APB |
4226 | } |
4227 | ||
e04a16fb | 4228 | static void |
c2952b01 APB |
4229 | add_instance_initializer (mdecl) |
4230 | tree mdecl; | |
e04a16fb | 4231 | { |
c2952b01 APB |
4232 | tree current; |
4233 | tree stmt_list = TYPE_II_STMT_LIST (DECL_CONTEXT (mdecl)); | |
4234 | tree compound = NULL_TREE; | |
e04a16fb | 4235 | |
c2952b01 | 4236 | if (stmt_list) |
e04a16fb | 4237 | { |
c2952b01 APB |
4238 | for (current = stmt_list; current; current = TREE_CHAIN (current)) |
4239 | compound = add_stmt_to_compound (compound, NULL_TREE, current); | |
e04a16fb | 4240 | |
c2952b01 APB |
4241 | java_method_add_stmt (mdecl, build1 (INSTANCE_INITIALIZERS_EXPR, |
4242 | NULL_TREE, compound)); | |
4243 | } | |
e04a16fb AG |
4244 | } |
4245 | ||
4246 | /* Shared accros method_declarator and method_header to remember the | |
4247 | patch stage that was reached during the declaration of the method. | |
4248 | A method DECL is built differently is there is no patch | |
4249 | (JDEP_NO_PATCH) or a patch (JDEP_METHOD or JDEP_METHOD_RETURN) | |
4250 | pending on the currently defined method. */ | |
4251 | ||
4252 | static int patch_stage; | |
4253 | ||
4254 | /* Check the method declaration and add the method to its current | |
4255 | class. If the argument list is known to contain incomplete types, | |
4256 | the method is partially added and the registration will be resume | |
22eed1e6 APB |
4257 | once the method arguments resolved. If TYPE is NULL, we're dealing |
4258 | with a constructor. */ | |
e04a16fb AG |
4259 | |
4260 | static tree | |
4261 | method_header (flags, type, mdecl, throws) | |
4262 | int flags; | |
4263 | tree type, mdecl, throws; | |
4264 | { | |
4265 | tree meth = TREE_VALUE (mdecl); | |
4266 | tree id = TREE_PURPOSE (mdecl); | |
1886c9d8 | 4267 | tree type_wfl = NULL_TREE; |
79d13333 | 4268 | tree meth_name = NULL_TREE; |
c2952b01 | 4269 | tree current, orig_arg, this_class = NULL; |
e04a16fb | 4270 | int saved_lineno; |
1886c9d8 | 4271 | int constructor_ok = 0, must_chain; |
c2952b01 | 4272 | int count; |
e04a16fb AG |
4273 | |
4274 | check_modifiers_consistency (flags); | |
79d13333 | 4275 | |
c2952b01 APB |
4276 | if (GET_CPC ()) |
4277 | this_class = TREE_TYPE (GET_CPC ()); | |
4278 | ||
4279 | if (!this_class || this_class == error_mark_node) | |
79d13333 | 4280 | return NULL_TREE; |
e04a16fb AG |
4281 | |
4282 | /* There are some forbidden modifiers for an abstract method and its | |
4283 | class must be abstract as well. */ | |
22eed1e6 | 4284 | if (type && (flags & ACC_ABSTRACT)) |
e04a16fb AG |
4285 | { |
4286 | ABSTRACT_CHECK (flags, ACC_PRIVATE, id, "Private"); | |
4287 | ABSTRACT_CHECK (flags, ACC_STATIC, id, "Static"); | |
4288 | ABSTRACT_CHECK (flags, ACC_FINAL, id, "Final"); | |
4289 | ABSTRACT_CHECK (flags, ACC_NATIVE, id, "Native"); | |
4290 | ABSTRACT_CHECK (flags, ACC_SYNCHRONIZED,id, "Synchronized"); | |
2aa11e97 APB |
4291 | if (!CLASS_ABSTRACT (TYPE_NAME (this_class)) |
4292 | && !CLASS_INTERFACE (TYPE_NAME (this_class))) | |
e04a16fb | 4293 | parse_error_context |
781b0558 | 4294 | (id, "Class `%s' must be declared abstract to define abstract method `%s'", |
e04a16fb AG |
4295 | IDENTIFIER_POINTER (DECL_NAME (ctxp->current_parsed_class)), |
4296 | IDENTIFIER_POINTER (EXPR_WFL_NODE (id))); | |
4297 | } | |
c2952b01 | 4298 | |
22eed1e6 APB |
4299 | /* Things to be checked when declaring a constructor */ |
4300 | if (!type) | |
4301 | { | |
4302 | int ec = java_error_count; | |
4303 | /* 8.6: Constructor declarations: we might be trying to define a | |
4304 | method without specifying a return type. */ | |
c2952b01 | 4305 | if (EXPR_WFL_NODE (id) != GET_CPC_UN ()) |
22eed1e6 APB |
4306 | parse_error_context |
4307 | (id, "Invalid method declaration, return type required"); | |
4308 | /* 8.6.3: Constructor modifiers */ | |
4309 | else | |
4310 | { | |
4311 | JCONSTRUCTOR_CHECK (flags, ACC_ABSTRACT, id, "abstract"); | |
4312 | JCONSTRUCTOR_CHECK (flags, ACC_STATIC, id, "static"); | |
4313 | JCONSTRUCTOR_CHECK (flags, ACC_FINAL, id, "final"); | |
4314 | JCONSTRUCTOR_CHECK (flags, ACC_NATIVE, id, "native"); | |
4315 | JCONSTRUCTOR_CHECK (flags, ACC_SYNCHRONIZED, id, "synchronized"); | |
4316 | } | |
4317 | /* If we found error here, we don't consider it's OK to tread | |
4318 | the method definition as a constructor, for the rest of this | |
4319 | function */ | |
4320 | if (ec == java_error_count) | |
4321 | constructor_ok = 1; | |
4322 | } | |
e04a16fb AG |
4323 | |
4324 | /* Method declared within the scope of an interface are implicitly | |
4325 | abstract and public. Conflicts with other erroneously provided | |
c0d87ff6 | 4326 | modifiers are checked right after. */ |
e04a16fb AG |
4327 | |
4328 | if (CLASS_INTERFACE (TYPE_NAME (this_class))) | |
4329 | { | |
4330 | /* If FLAGS isn't set because of a modifier, turn the | |
4331 | corresponding modifier WFL to NULL so we issue a warning on | |
4332 | the obsolete use of the modifier */ | |
4333 | if (!(flags & ACC_PUBLIC)) | |
4334 | MODIFIER_WFL (PUBLIC_TK) = NULL; | |
4335 | if (!(flags & ACC_ABSTRACT)) | |
4336 | MODIFIER_WFL (ABSTRACT_TK) = NULL; | |
4337 | flags |= ACC_PUBLIC; | |
4338 | flags |= ACC_ABSTRACT; | |
4339 | } | |
4340 | ||
c2952b01 APB |
4341 | /* Inner class can't declare static methods */ |
4342 | if ((flags & ACC_STATIC) && !TOPLEVEL_CLASS_TYPE_P (this_class)) | |
4343 | { | |
4344 | parse_error_context | |
4345 | (id, "Method `%s' can't be static in inner class `%s'. Only members of interfaces and top-level classes can be static", | |
4346 | IDENTIFIER_POINTER (EXPR_WFL_NODE (id)), | |
4347 | lang_printable_name (this_class, 0)); | |
4348 | } | |
4349 | ||
e04a16fb AG |
4350 | /* Modifiers context reset moved up, so abstract method declaration |
4351 | modifiers can be later checked. */ | |
4352 | ||
22eed1e6 APB |
4353 | /* Set constructor returned type to void and method name to <init>, |
4354 | unless we found an error identifier the constructor (in which | |
4355 | case we retain the original name) */ | |
4356 | if (!type) | |
4357 | { | |
4358 | type = void_type_node; | |
4359 | if (constructor_ok) | |
4360 | meth_name = init_identifier_node; | |
4361 | } | |
4362 | else | |
4363 | meth_name = EXPR_WFL_NODE (id); | |
e04a16fb | 4364 | |
1886c9d8 APB |
4365 | /* Do the returned type resolution and registration if necessary */ |
4366 | SET_TYPE_FOR_RESOLUTION (type, type_wfl, must_chain); | |
4367 | ||
4a5f66c3 APB |
4368 | if (meth_name) |
4369 | type = build_array_from_name (type, type_wfl, meth_name, &meth_name); | |
1886c9d8 APB |
4370 | EXPR_WFL_NODE (id) = meth_name; |
4371 | PROMOTE_RECORD_IF_COMPLETE (type, must_chain); | |
4372 | ||
4373 | if (must_chain) | |
e04a16fb | 4374 | { |
1886c9d8 APB |
4375 | patch_stage = JDEP_METHOD_RETURN; |
4376 | register_incomplete_type (patch_stage, type_wfl, id, type); | |
4377 | TREE_TYPE (meth) = GET_REAL_TYPE (type); | |
e04a16fb AG |
4378 | } |
4379 | else | |
1886c9d8 | 4380 | TREE_TYPE (meth) = type; |
e04a16fb AG |
4381 | |
4382 | saved_lineno = lineno; | |
4383 | /* When defining an abstract or interface method, the curly | |
4384 | bracket at level 1 doesn't exist because there is no function | |
4385 | body */ | |
4386 | lineno = (ctxp->first_ccb_indent1 ? ctxp->first_ccb_indent1 : | |
4387 | EXPR_WFL_LINENO (id)); | |
4388 | ||
5e942c50 APB |
4389 | /* Remember the original argument list */ |
4390 | orig_arg = TYPE_ARG_TYPES (meth); | |
4391 | ||
e04a16fb AG |
4392 | if (patch_stage) /* includes ret type and/or all args */ |
4393 | { | |
4394 | jdep *jdep; | |
4395 | meth = add_method_1 (this_class, flags, meth_name, meth); | |
4396 | /* Patch for the return type */ | |
4397 | if (patch_stage == JDEP_METHOD_RETURN) | |
4398 | { | |
4399 | jdep = CLASSD_LAST (ctxp->classd_list); | |
4400 | JDEP_GET_PATCH (jdep) = &TREE_TYPE (TREE_TYPE (meth)); | |
4401 | } | |
4402 | /* This is the stop JDEP. METH allows the function's signature | |
4403 | to be computed. */ | |
4404 | register_incomplete_type (JDEP_METHOD_END, NULL_TREE, meth, NULL_TREE); | |
4405 | } | |
4406 | else | |
5e942c50 APB |
4407 | meth = add_method (this_class, flags, meth_name, |
4408 | build_java_signature (meth)); | |
4409 | ||
c2952b01 APB |
4410 | /* Remember final parameters */ |
4411 | MARK_FINAL_PARMS (meth, orig_arg); | |
4412 | ||
5e942c50 APB |
4413 | /* Fix the method argument list so we have the argument name |
4414 | information */ | |
4415 | fix_method_argument_names (orig_arg, meth); | |
4416 | ||
4417 | /* Register the parameter number and re-install the current line | |
4418 | number */ | |
e04a16fb AG |
4419 | DECL_MAX_LOCALS (meth) = ctxp->formal_parameter_number+1; |
4420 | lineno = saved_lineno; | |
b9f7e36c APB |
4421 | |
4422 | /* Register exception specified by the `throws' keyword for | |
4423 | resolution and set the method decl appropriate field to the list. | |
4424 | Note: the grammar ensures that what we get here are class | |
4425 | types. */ | |
4426 | if (throws) | |
4427 | { | |
4428 | throws = nreverse (throws); | |
4429 | for (current = throws; current; current = TREE_CHAIN (current)) | |
4430 | { | |
4431 | register_incomplete_type (JDEP_EXCEPTION, TREE_VALUE (current), | |
4432 | NULL_TREE, NULL_TREE); | |
4433 | JDEP_GET_PATCH (CLASSD_LAST (ctxp->classd_list)) = | |
4434 | &TREE_VALUE (current); | |
4435 | } | |
4436 | DECL_FUNCTION_THROWS (meth) = throws; | |
4437 | } | |
4438 | ||
e04a16fb AG |
4439 | /* We set the DECL_NAME to ID so we can track the location where |
4440 | the function was declared. This allow us to report | |
4441 | redefinition error accurately. When method are verified, | |
4442 | DECL_NAME is reinstalled properly (using the content of the | |
4443 | WFL node ID) (see check_method_redefinition). We don't do that | |
22eed1e6 APB |
4444 | when Object is being defined. Constructor <init> names will be |
4445 | reinstalled the same way. */ | |
c2952b01 | 4446 | if (TREE_TYPE (GET_CPC ()) != object_type_node) |
e04a16fb | 4447 | DECL_NAME (meth) = id; |
22eed1e6 APB |
4448 | |
4449 | /* Set the flag if we correctly processed a constructor */ | |
4450 | if (constructor_ok) | |
c2952b01 APB |
4451 | { |
4452 | DECL_CONSTRUCTOR_P (meth) = 1; | |
4453 | /* Compute and store the number of artificial parameters declared | |
4454 | for this constructor */ | |
4455 | for (count = 0, current = TYPE_FIELDS (this_class); current; | |
4456 | current = TREE_CHAIN (current)) | |
4457 | if (FIELD_LOCAL_ALIAS (current)) | |
4458 | count++; | |
4459 | DECL_FUNCTION_NAP (meth) = count; | |
4460 | } | |
22eed1e6 | 4461 | |
5e942c50 APB |
4462 | /* Eventually set the @deprecated tag flag */ |
4463 | CHECK_DEPRECATED (meth); | |
4464 | ||
7f10c2e2 APB |
4465 | /* If doing xref, store column and line number information instead |
4466 | of the line number only. */ | |
4467 | if (flag_emit_xref) | |
4468 | DECL_SOURCE_LINE (meth) = EXPR_WFL_LINECOL (id); | |
4469 | ||
e04a16fb AG |
4470 | return meth; |
4471 | } | |
4472 | ||
5e942c50 APB |
4473 | static void |
4474 | fix_method_argument_names (orig_arg, meth) | |
4475 | tree orig_arg, meth; | |
4476 | { | |
4477 | tree arg = TYPE_ARG_TYPES (TREE_TYPE (meth)); | |
4478 | if (TREE_CODE (TREE_TYPE (meth)) == METHOD_TYPE) | |
4479 | { | |
4480 | TREE_PURPOSE (arg) = this_identifier_node; | |
4481 | arg = TREE_CHAIN (arg); | |
4482 | } | |
de4c7b02 | 4483 | while (orig_arg != end_params_node) |
5e942c50 APB |
4484 | { |
4485 | TREE_PURPOSE (arg) = TREE_PURPOSE (orig_arg); | |
4486 | orig_arg = TREE_CHAIN (orig_arg); | |
4487 | arg = TREE_CHAIN (arg); | |
4488 | } | |
4489 | } | |
4490 | ||
22eed1e6 APB |
4491 | /* Complete the method declaration with METHOD_BODY. */ |
4492 | ||
4493 | static void | |
b635eb2f | 4494 | finish_method_declaration (method_body) |
22eed1e6 APB |
4495 | tree method_body; |
4496 | { | |
79d13333 APB |
4497 | int flags; |
4498 | ||
4499 | if (!current_function_decl) | |
4500 | return; | |
4501 | ||
4502 | flags = get_access_flags_from_decl (current_function_decl); | |
5256aa37 APB |
4503 | |
4504 | /* 8.4.5 Method Body */ | |
4505 | if ((flags & ACC_ABSTRACT || flags & ACC_NATIVE) && method_body) | |
4506 | { | |
4507 | tree wfl = DECL_NAME (current_function_decl); | |
4508 | parse_error_context (wfl, | |
4509 | "%s method `%s' can't have a body defined", | |
4510 | (METHOD_NATIVE (current_function_decl) ? | |
4511 | "Native" : "Abstract"), | |
4512 | IDENTIFIER_POINTER (EXPR_WFL_NODE (wfl))); | |
4513 | method_body = NULL_TREE; | |
4514 | } | |
4515 | else if (!(flags & ACC_ABSTRACT) && !(flags & ACC_NATIVE) && !method_body) | |
4516 | { | |
4517 | tree wfl = DECL_NAME (current_function_decl); | |
781b0558 KG |
4518 | parse_error_context |
4519 | (wfl, | |
4520 | "Non native and non abstract method `%s' must have a body defined", | |
4521 | IDENTIFIER_POINTER (EXPR_WFL_NODE (wfl))); | |
5256aa37 APB |
4522 | method_body = NULL_TREE; |
4523 | } | |
4524 | ||
2c56429a APB |
4525 | if (flag_emit_class_files && method_body |
4526 | && TREE_CODE (method_body) == NOP_EXPR | |
4527 | && TREE_TYPE (current_function_decl) | |
4528 | && TREE_TYPE (TREE_TYPE (current_function_decl)) == void_type_node) | |
4529 | method_body = build1 (RETURN_EXPR, void_type_node, NULL); | |
e803d3b2 | 4530 | |
22eed1e6 APB |
4531 | BLOCK_EXPR_BODY (DECL_FUNCTION_BODY (current_function_decl)) = method_body; |
4532 | maybe_absorb_scoping_blocks (); | |
4533 | /* Exit function's body */ | |
4534 | exit_block (); | |
4535 | /* Merge last line of the function with first line, directly in the | |
4536 | function decl. It will be used to emit correct debug info. */ | |
7f10c2e2 APB |
4537 | if (!flag_emit_xref) |
4538 | DECL_SOURCE_LINE_MERGE (current_function_decl, ctxp->last_ccb_indent1); | |
c2952b01 APB |
4539 | |
4540 | /* Since function's argument's list are shared, reset the | |
4541 | ARG_FINAL_P parameter that might have been set on some of this | |
4542 | function parameters. */ | |
4543 | UNMARK_FINAL_PARMS (current_function_decl); | |
4544 | ||
f099f336 APB |
4545 | /* So we don't have an irrelevant function declaration context for |
4546 | the next static block we'll see. */ | |
4547 | current_function_decl = NULL_TREE; | |
22eed1e6 APB |
4548 | } |
4549 | ||
4550 | /* Build a an error message for constructor circularity errors. */ | |
4551 | ||
4552 | static char * | |
4553 | constructor_circularity_msg (from, to) | |
4554 | tree from, to; | |
4555 | { | |
4556 | static char string [4096]; | |
c2e3db92 | 4557 | char *t = xstrdup (lang_printable_name (from, 0)); |
22eed1e6 APB |
4558 | sprintf (string, "`%s' invokes `%s'", t, lang_printable_name (to, 0)); |
4559 | free (t); | |
4560 | return string; | |
4561 | } | |
4562 | ||
4563 | /* Verify a circular call to METH. Return 1 if an error is found, 0 | |
4564 | otherwise. */ | |
4565 | ||
4566 | static int | |
4567 | verify_constructor_circularity (meth, current) | |
4568 | tree meth, current; | |
4569 | { | |
4570 | static tree list = NULL_TREE; | |
4571 | tree c; | |
4572 | for (c = DECL_CONSTRUCTOR_CALLS (current); c; c = TREE_CHAIN (c)) | |
4573 | { | |
4574 | if (TREE_VALUE (c) == meth) | |
4575 | { | |
4576 | char *t; | |
4577 | if (list) | |
4578 | { | |
4579 | tree liste; | |
4580 | list = nreverse (list); | |
4581 | for (liste = list; liste; liste = TREE_CHAIN (liste)) | |
4582 | { | |
4583 | parse_error_context | |
c63b98cd | 4584 | (TREE_PURPOSE (TREE_PURPOSE (liste)), "%s", |
22eed1e6 APB |
4585 | constructor_circularity_msg |
4586 | (TREE_VALUE (liste), TREE_VALUE (TREE_PURPOSE (liste)))); | |
4587 | java_error_count--; | |
4588 | } | |
4589 | } | |
c2e3db92 | 4590 | t = xstrdup (lang_printable_name (meth, 0)); |
22eed1e6 APB |
4591 | parse_error_context (TREE_PURPOSE (c), |
4592 | "%s: recursive invocation of constructor `%s'", | |
4593 | constructor_circularity_msg (current, meth), t); | |
4594 | free (t); | |
4595 | list = NULL_TREE; | |
4596 | return 1; | |
4597 | } | |
4598 | } | |
4599 | for (c = DECL_CONSTRUCTOR_CALLS (current); c; c = TREE_CHAIN (c)) | |
4600 | { | |
4601 | list = tree_cons (c, current, list); | |
4602 | if (verify_constructor_circularity (meth, TREE_VALUE (c))) | |
4603 | return 1; | |
4604 | list = TREE_CHAIN (list); | |
4605 | } | |
4606 | return 0; | |
4607 | } | |
4608 | ||
e04a16fb AG |
4609 | /* Check modifiers that can be declared but exclusively */ |
4610 | ||
4611 | static void | |
4612 | check_modifiers_consistency (flags) | |
4613 | int flags; | |
4614 | { | |
4615 | int acc_count = 0; | |
4616 | tree cl = NULL_TREE; | |
4617 | ||
e0fc4118 TT |
4618 | THIS_MODIFIER_ONLY (flags, ACC_PUBLIC, PUBLIC_TK, acc_count, cl); |
4619 | THIS_MODIFIER_ONLY (flags, ACC_PRIVATE, PRIVATE_TK, acc_count, cl); | |
4620 | THIS_MODIFIER_ONLY (flags, ACC_PROTECTED, PROTECTED_TK, acc_count, cl); | |
e04a16fb AG |
4621 | if (acc_count > 1) |
4622 | parse_error_context | |
e0fc4118 TT |
4623 | (cl, "Inconsistent member declaration. At most one of `public', `private', or `protected' may be specified"); |
4624 | ||
4625 | acc_count = 0; | |
4626 | cl = NULL_TREE; | |
14d075d8 TT |
4627 | THIS_MODIFIER_ONLY (flags, ACC_FINAL, FINAL_TK, acc_count, cl); |
4628 | THIS_MODIFIER_ONLY (flags, ACC_VOLATILE, VOLATILE_TK, acc_count, cl); | |
e0fc4118 TT |
4629 | if (acc_count > 1) |
4630 | parse_error_context (cl, | |
4631 | "Inconsistent member declaration. At most one of `final' or `volatile' may be specified"); | |
e04a16fb AG |
4632 | } |
4633 | ||
4634 | /* Check the methode header METH for abstract specifics features */ | |
4635 | ||
4636 | static void | |
4637 | check_abstract_method_header (meth) | |
4638 | tree meth; | |
4639 | { | |
4640 | int flags = get_access_flags_from_decl (meth); | |
4641 | /* DECL_NAME might still be a WFL node */ | |
c877974e | 4642 | tree name = GET_METHOD_NAME (meth); |
e04a16fb | 4643 | |
2884c41e KG |
4644 | OBSOLETE_MODIFIER_WARNING2 (MODIFIER_WFL (ABSTRACT_TK), flags, |
4645 | ACC_ABSTRACT, "abstract method", | |
4646 | IDENTIFIER_POINTER (name)); | |
4647 | OBSOLETE_MODIFIER_WARNING2 (MODIFIER_WFL (PUBLIC_TK), flags, | |
4648 | ACC_PUBLIC, "abstract method", | |
4649 | IDENTIFIER_POINTER (name)); | |
e04a16fb AG |
4650 | |
4651 | check_modifiers ("Illegal modifier `%s' for interface method", | |
4652 | flags, INTERFACE_METHOD_MODIFIERS); | |
4653 | } | |
4654 | ||
4655 | /* Create a FUNCTION_TYPE node and start augmenting it with the | |
4656 | declared function arguments. Arguments type that can't be resolved | |
4657 | are left as they are, but the returned node is marked as containing | |
4658 | incomplete types. */ | |
4659 | ||
4660 | static tree | |
4661 | method_declarator (id, list) | |
4662 | tree id, list; | |
4663 | { | |
4664 | tree arg_types = NULL_TREE, current, node; | |
4665 | tree meth = make_node (FUNCTION_TYPE); | |
4666 | jdep *jdep; | |
e04a16fb AG |
4667 | |
4668 | patch_stage = JDEP_NO_PATCH; | |
c2952b01 APB |
4669 | |
4670 | /* If we're dealing with an inner class constructor, we hide the | |
4671 | this$<n> decl in the name field of its parameter declaration. We | |
4672 | also might have to hide the outer context local alias | |
4673 | initializers. Not done when the class is a toplevel class. */ | |
4674 | if (PURE_INNER_CLASS_DECL_P (GET_CPC ()) | |
4675 | && EXPR_WFL_NODE (id) == GET_CPC_UN ()) | |
4676 | { | |
4677 | tree aliases_list, type, thisn; | |
4678 | /* First the aliases, linked to the regular parameters */ | |
4679 | aliases_list = | |
4680 | build_alias_initializer_parameter_list (AIPL_FUNCTION_DECLARATION, | |
4681 | TREE_TYPE (GET_CPC ()), | |
4682 | NULL_TREE, NULL); | |
4683 | list = chainon (nreverse (aliases_list), list); | |
4684 | ||
4685 | /* Then this$<n> */ | |
4686 | type = TREE_TYPE (DECL_CONTEXT (GET_CPC ())); | |
9a7ab4b3 | 4687 | thisn = build_current_thisn (TREE_TYPE (GET_CPC ())); |
c2952b01 APB |
4688 | list = tree_cons (build_wfl_node (thisn), build_pointer_type (type), |
4689 | list); | |
4690 | } | |
e04a16fb AG |
4691 | |
4692 | for (current = list; current; current = TREE_CHAIN (current)) | |
4693 | { | |
c583dd46 | 4694 | int must_chain = 0; |
e04a16fb AG |
4695 | tree wfl_name = TREE_PURPOSE (current); |
4696 | tree type = TREE_VALUE (current); | |
4697 | tree name = EXPR_WFL_NODE (wfl_name); | |
c583dd46 APB |
4698 | tree already, arg_node; |
4699 | tree type_wfl = NULL_TREE; | |
23a79c61 | 4700 | tree real_type; |
c583dd46 APB |
4701 | |
4702 | /* Obtain a suitable type for resolution, if necessary */ | |
4703 | SET_TYPE_FOR_RESOLUTION (type, type_wfl, must_chain); | |
4704 | ||
4705 | /* Process NAME, as it may specify extra dimension(s) for it */ | |
4706 | type = build_array_from_name (type, type_wfl, name, &name); | |
4707 | EXPR_WFL_NODE (wfl_name) = name; | |
e04a16fb | 4708 | |
23a79c61 APB |
4709 | real_type = GET_REAL_TYPE (type); |
4710 | if (TREE_CODE (real_type) == RECORD_TYPE) | |
4711 | { | |
4712 | real_type = promote_type (real_type); | |
4713 | if (TREE_CODE (type) == TREE_LIST) | |
4714 | TREE_PURPOSE (type) = real_type; | |
4715 | } | |
5e942c50 | 4716 | |
e04a16fb AG |
4717 | /* Check redefinition */ |
4718 | for (already = arg_types; already; already = TREE_CHAIN (already)) | |
4719 | if (TREE_PURPOSE (already) == name) | |
4720 | { | |
781b0558 KG |
4721 | parse_error_context |
4722 | (wfl_name, "Variable `%s' is used more than once in the argument list of method `%s'", | |
4723 | IDENTIFIER_POINTER (name), | |
e04a16fb AG |
4724 | IDENTIFIER_POINTER (EXPR_WFL_NODE (id))); |
4725 | break; | |
4726 | } | |
4727 | ||
4728 | /* If we've an incomplete argument type, we know there is a location | |
4729 | to patch when the type get resolved, later. */ | |
4730 | jdep = NULL; | |
c583dd46 | 4731 | if (must_chain) |
e04a16fb | 4732 | { |
c583dd46 APB |
4733 | patch_stage = JDEP_METHOD; |
4734 | type = register_incomplete_type (patch_stage, | |
4735 | type_wfl, wfl_name, type); | |
4736 | jdep = CLASSD_LAST (ctxp->classd_list); | |
4737 | JDEP_MISC (jdep) = id; | |
e04a16fb | 4738 | } |
c583dd46 | 4739 | |
c2952b01 | 4740 | /* The argument node: a name and a (possibly) incomplete type. */ |
23a79c61 | 4741 | arg_node = build_tree_list (name, real_type); |
c2952b01 APB |
4742 | /* Remeber arguments declared final. */ |
4743 | ARG_FINAL_P (arg_node) = ARG_FINAL_P (current); | |
4744 | ||
e04a16fb AG |
4745 | if (jdep) |
4746 | JDEP_GET_PATCH (jdep) = &TREE_VALUE (arg_node); | |
4747 | TREE_CHAIN (arg_node) = arg_types; | |
4748 | arg_types = arg_node; | |
4749 | } | |
de4c7b02 | 4750 | TYPE_ARG_TYPES (meth) = chainon (nreverse (arg_types), end_params_node); |
e04a16fb AG |
4751 | node = build_tree_list (id, meth); |
4752 | return node; | |
4753 | } | |
4754 | ||
4755 | static int | |
4756 | unresolved_type_p (wfl, returned) | |
4757 | tree wfl; | |
4758 | tree *returned; | |
4759 | ||
4760 | { | |
4761 | if (TREE_CODE (wfl) == EXPR_WITH_FILE_LOCATION) | |
4762 | { | |
e04a16fb | 4763 | if (returned) |
165f37bc APB |
4764 | { |
4765 | tree decl = IDENTIFIER_CLASS_VALUE (EXPR_WFL_NODE (wfl)); | |
4766 | if (decl && current_class && (decl == TYPE_NAME (current_class))) | |
4767 | *returned = TREE_TYPE (decl); | |
4768 | else if (GET_CPC_UN () == EXPR_WFL_NODE (wfl)) | |
4769 | *returned = TREE_TYPE (GET_CPC ()); | |
4770 | else | |
4771 | *returned = NULL_TREE; | |
4772 | } | |
e04a16fb AG |
4773 | return 1; |
4774 | } | |
4775 | if (returned) | |
4776 | *returned = wfl; | |
4777 | return 0; | |
4778 | } | |
4779 | ||
4780 | /* From NAME, build a qualified identifier node using the | |
4781 | qualification from the current package definition. */ | |
4782 | ||
4783 | static tree | |
c2952b01 APB |
4784 | parser_qualified_classname (is_static, name) |
4785 | int is_static; | |
e04a16fb AG |
4786 | tree name; |
4787 | { | |
c2952b01 APB |
4788 | tree nested_class_name; |
4789 | ||
4790 | if (!is_static | |
4791 | && (nested_class_name = maybe_make_nested_class_name (name))) | |
4792 | return nested_class_name; | |
4793 | ||
e04a16fb | 4794 | if (ctxp->package) |
c2952b01 | 4795 | return merge_qualified_name (ctxp->package, name); |
e04a16fb | 4796 | else |
c2952b01 | 4797 | return name; |
e04a16fb AG |
4798 | } |
4799 | ||
4800 | /* Called once the type a interface extends is resolved. Returns 0 if | |
4801 | everything is OK. */ | |
4802 | ||
4803 | static int | |
4804 | parser_check_super_interface (super_decl, this_decl, this_wfl) | |
4805 | tree super_decl, this_decl, this_wfl; | |
4806 | { | |
4807 | tree super_type = TREE_TYPE (super_decl); | |
4808 | ||
4809 | /* Has to be an interface */ | |
c2952b01 | 4810 | if (!CLASS_INTERFACE (super_decl)) |
e04a16fb AG |
4811 | { |
4812 | parse_error_context | |
4813 | (this_wfl, "Can't use %s `%s' to implement/extend %s `%s'", | |
4814 | (TYPE_ARRAY_P (super_type) ? "array" : "class"), | |
4815 | IDENTIFIER_POINTER (DECL_NAME (super_decl)), | |
4816 | (CLASS_INTERFACE (TYPE_NAME (TREE_TYPE (this_decl))) ? | |
4817 | "interface" : "class"), | |
4818 | IDENTIFIER_POINTER (DECL_NAME (this_decl))); | |
4819 | return 1; | |
4820 | } | |
4821 | ||
4822 | /* Check scope: same package OK, other package: OK if public */ | |
4823 | if (check_pkg_class_access (DECL_NAME (super_decl), lookup_cl (this_decl))) | |
4824 | return 1; | |
4825 | ||
4826 | SOURCE_FRONTEND_DEBUG (("Completing interface %s with %s", | |
4827 | IDENTIFIER_POINTER (DECL_NAME (this_decl)), | |
4828 | IDENTIFIER_POINTER (DECL_NAME (super_decl)))); | |
4829 | return 0; | |
4830 | } | |
4831 | ||
4832 | /* Makes sure that SUPER_DECL is suitable to extend THIS_DECL. Returns | |
4833 | 0 if everthing is OK. */ | |
4834 | ||
4835 | static int | |
4836 | parser_check_super (super_decl, this_decl, wfl) | |
4837 | tree super_decl, this_decl, wfl; | |
4838 | { | |
e04a16fb AG |
4839 | tree super_type = TREE_TYPE (super_decl); |
4840 | ||
4841 | /* SUPER should be a CLASS (neither an array nor an interface) */ | |
4842 | if (TYPE_ARRAY_P (super_type) || CLASS_INTERFACE (TYPE_NAME (super_type))) | |
4843 | { | |
4844 | parse_error_context | |
4845 | (wfl, "Class `%s' can't subclass %s `%s'", | |
4846 | IDENTIFIER_POINTER (DECL_NAME (this_decl)), | |
4847 | (CLASS_INTERFACE (TYPE_NAME (super_type)) ? "interface" : "array"), | |
4848 | IDENTIFIER_POINTER (DECL_NAME (super_decl))); | |
4849 | return 1; | |
4850 | } | |
4851 | ||
4852 | if (CLASS_FINAL (TYPE_NAME (super_type))) | |
4853 | { | |
4854 | parse_error_context (wfl, "Can't subclass final classes: %s", | |
4855 | IDENTIFIER_POINTER (DECL_NAME (super_decl))); | |
4856 | return 1; | |
4857 | } | |
4858 | ||
4859 | /* Check scope: same package OK, other package: OK if public */ | |
4860 | if (check_pkg_class_access (DECL_NAME (super_decl), wfl)) | |
4861 | return 1; | |
4862 | ||
4863 | SOURCE_FRONTEND_DEBUG (("Completing class %s with %s", | |
4864 | IDENTIFIER_POINTER (DECL_NAME (this_decl)), | |
4865 | IDENTIFIER_POINTER (DECL_NAME (super_decl)))); | |
4866 | return 0; | |
4867 | } | |
4868 | ||
4869 | /* Create a new dependency list and link it (in a LIFO manner) to the | |
4870 | CTXP list of type dependency list. */ | |
4871 | ||
4872 | static void | |
4873 | create_jdep_list (ctxp) | |
4874 | struct parser_ctxt *ctxp; | |
4875 | { | |
23a79c61 | 4876 | jdeplist *new = (jdeplist *)xmalloc (sizeof (jdeplist)); |
e04a16fb AG |
4877 | new->first = new->last = NULL; |
4878 | new->next = ctxp->classd_list; | |
4879 | ctxp->classd_list = new; | |
4880 | } | |
4881 | ||
4882 | static jdeplist * | |
4883 | reverse_jdep_list (ctxp) | |
4884 | struct parser_ctxt *ctxp; | |
4885 | { | |
4886 | register jdeplist *prev = NULL, *current, *next; | |
4887 | for (current = ctxp->classd_list; current; current = next) | |
4888 | { | |
4889 | next = current->next; | |
4890 | current->next = prev; | |
4891 | prev = current; | |
4892 | } | |
4893 | return prev; | |
4894 | } | |
4895 | ||
23a79c61 APB |
4896 | /* Create a fake pointer based on the ID stored in |
4897 | TYPE_NAME. TYPE_NAME can be a WFL or a incomplete type asking to be | |
4898 | registered again. */ | |
e04a16fb AG |
4899 | |
4900 | static tree | |
23a79c61 APB |
4901 | obtain_incomplete_type (type_name) |
4902 | tree type_name; | |
e04a16fb | 4903 | { |
23a79c61 APB |
4904 | tree ptr, name; |
4905 | ||
4906 | if (TREE_CODE (type_name) == EXPR_WITH_FILE_LOCATION) | |
4907 | name = EXPR_WFL_NODE (type_name); | |
4908 | else if (INCOMPLETE_TYPE_P (type_name)) | |
4909 | name = TYPE_NAME (type_name); | |
4910 | else | |
4911 | fatal ("invalid type name - obtain_incomplete_type"); | |
e04a16fb AG |
4912 | |
4913 | for (ptr = ctxp->incomplete_class; ptr; ptr = TREE_CHAIN (ptr)) | |
78d21f92 | 4914 | if (TYPE_NAME (ptr) == name) |
e04a16fb AG |
4915 | break; |
4916 | ||
4917 | if (!ptr) | |
4918 | { | |
e04a16fb | 4919 | push_obstacks (&permanent_obstack, &permanent_obstack); |
78d21f92 PB |
4920 | BUILD_PTR_FROM_NAME (ptr, name); |
4921 | layout_type (ptr); | |
e04a16fb AG |
4922 | pop_obstacks (); |
4923 | TREE_CHAIN (ptr) = ctxp->incomplete_class; | |
4924 | ctxp->incomplete_class = ptr; | |
4925 | } | |
4926 | ||
4927 | return ptr; | |
4928 | } | |
4929 | ||
4930 | /* Register a incomplete type whose name is WFL. Reuse PTR if PTR is | |
4931 | non NULL instead of computing a new fake type based on WFL. The new | |
4932 | dependency is inserted in the current type dependency list, in FIFO | |
4933 | manner. */ | |
4934 | ||
4935 | static tree | |
4936 | register_incomplete_type (kind, wfl, decl, ptr) | |
4937 | int kind; | |
4938 | tree wfl, decl, ptr; | |
4939 | { | |
23a79c61 | 4940 | jdep *new = (jdep *)xmalloc (sizeof (jdep)); |
e04a16fb | 4941 | |
e04a16fb AG |
4942 | if (!ptr && kind != JDEP_METHOD_END) /* JDEP_METHOD_END is a mere marker */ |
4943 | ptr = obtain_incomplete_type (wfl); | |
4944 | ||
4945 | JDEP_KIND (new) = kind; | |
4946 | JDEP_DECL (new) = decl; | |
4947 | JDEP_SOLV (new) = ptr; | |
4948 | JDEP_WFL (new) = wfl; | |
4949 | JDEP_CHAIN (new) = NULL; | |
4950 | JDEP_MISC (new) = NULL_TREE; | |
e803d3b2 APB |
4951 | /* For some dependencies, set the enclosing class of the current |
4952 | class to be the enclosing context */ | |
4953 | if ((kind == JDEP_SUPER || kind == JDEP_INTERFACE || kind == JDEP_ANONYMOUS) | |
165f37bc APB |
4954 | && GET_ENCLOSING_CPC ()) |
4955 | JDEP_ENCLOSING (new) = TREE_VALUE (GET_ENCLOSING_CPC ()); | |
4956 | else | |
324ed8fd | 4957 | JDEP_ENCLOSING (new) = GET_CPC (); |
e04a16fb AG |
4958 | JDEP_GET_PATCH (new) = (tree *)NULL; |
4959 | ||
4960 | JDEP_INSERT (ctxp->classd_list, new); | |
4961 | ||
4962 | return ptr; | |
4963 | } | |
4964 | ||
4965 | void | |
4966 | java_check_circular_reference () | |
4967 | { | |
4968 | tree current; | |
4969 | for (current = ctxp->class_list; current; current = TREE_CHAIN (current)) | |
4970 | { | |
4971 | tree type = TREE_TYPE (current); | |
e920ebc9 | 4972 | if (CLASS_INTERFACE (current)) |
e04a16fb AG |
4973 | { |
4974 | /* Check all interfaces this class extends */ | |
4975 | tree basetype_vec = TYPE_BINFO_BASETYPES (type); | |
4976 | int n, i; | |
4977 | ||
4978 | if (!basetype_vec) | |
4979 | return; | |
4980 | n = TREE_VEC_LENGTH (basetype_vec); | |
4981 | for (i = 0; i < n; i++) | |
4982 | { | |
4983 | tree vec_elt = TREE_VEC_ELT (basetype_vec, i); | |
4984 | if (vec_elt && BINFO_TYPE (vec_elt) != object_type_node | |
4985 | && interface_of_p (type, BINFO_TYPE (vec_elt))) | |
4986 | parse_error_context (lookup_cl (current), | |
4987 | "Cyclic interface inheritance"); | |
4988 | } | |
4989 | } | |
4990 | else | |
4991 | if (inherits_from_p (CLASSTYPE_SUPER (type), type)) | |
4992 | parse_error_context (lookup_cl (current), | |
c2952b01 APB |
4993 | "Cyclic class inheritance%s", |
4994 | (cyclic_inheritance_report ? | |
4995 | cyclic_inheritance_report : "")); | |
4996 | } | |
4997 | } | |
4998 | ||
4999 | /* Augment the parameter list PARM with parameters crafted to | |
5000 | initialize outer context locals aliases. Through ARTIFICIAL, a | |
5001 | count is kept of the number of crafted parameters. MODE governs | |
5002 | what eventually gets created: something suitable for a function | |
5003 | creation or a function invocation, either the constructor or | |
5004 | $finit$. */ | |
5005 | ||
5006 | static tree | |
5007 | build_alias_initializer_parameter_list (mode, class_type, parm, artificial) | |
5008 | int mode; | |
5009 | tree class_type, parm; | |
5010 | int *artificial; | |
5011 | { | |
5012 | tree field; | |
5013 | for (field = TYPE_FIELDS (class_type); field; field = TREE_CHAIN (field)) | |
5014 | if (FIELD_LOCAL_ALIAS (field)) | |
5015 | { | |
5016 | char *buffer = IDENTIFIER_POINTER (DECL_NAME (field)); | |
5017 | tree purpose = NULL_TREE, value = NULL_TREE, name = NULL_TREE; | |
5018 | ||
5019 | switch (mode) | |
5020 | { | |
5021 | case AIPL_FUNCTION_DECLARATION: | |
5022 | MANGLE_ALIAS_INITIALIZER_PARAMETER_NAME_STR (buffer, &buffer [4]); | |
5023 | purpose = build_wfl_node (get_identifier (buffer)); | |
5024 | if (TREE_CODE (TREE_TYPE (field)) == POINTER_TYPE) | |
5025 | value = build_wfl_node (TYPE_NAME (TREE_TYPE (field))); | |
5026 | else | |
5027 | value = TREE_TYPE (field); | |
5028 | break; | |
5029 | ||
5030 | case AIPL_FUNCTION_CREATION: | |
5031 | MANGLE_ALIAS_INITIALIZER_PARAMETER_NAME_STR (buffer, &buffer [4]); | |
5032 | purpose = get_identifier (buffer); | |
5033 | value = TREE_TYPE (field); | |
5034 | break; | |
5035 | ||
5036 | case AIPL_FUNCTION_FINIT_INVOCATION: | |
5037 | MANGLE_ALIAS_INITIALIZER_PARAMETER_NAME_STR (buffer, &buffer [4]); | |
5038 | /* Now, this is wrong. purpose should always be the NAME | |
5039 | of something and value its matching value (decl, type, | |
5040 | etc...) FIXME -- but there is a lot to fix. */ | |
5041 | ||
5042 | /* When invoked for this kind of operation, we already | |
5043 | know whether a field is used or not. */ | |
5044 | purpose = TREE_TYPE (field); | |
5045 | value = build_wfl_node (get_identifier (buffer)); | |
5046 | break; | |
5047 | ||
5048 | case AIPL_FUNCTION_CTOR_INVOCATION: | |
5049 | /* There are two case: the constructor invokation happends | |
5050 | outside the local inner, in which case, locales from the outer | |
5051 | context are directly used. | |
5052 | ||
5053 | Otherwise, we fold to using the alias directly. */ | |
5054 | if (class_type == current_class) | |
5055 | value = field; | |
5056 | else | |
5057 | { | |
5058 | name = get_identifier (&buffer[4]); | |
5059 | value = IDENTIFIER_LOCAL_VALUE (name); | |
5060 | } | |
5061 | break; | |
5062 | } | |
5063 | parm = tree_cons (purpose, value, parm); | |
5064 | if (artificial) | |
5065 | *artificial +=1; | |
5066 | } | |
5067 | return parm; | |
5068 | } | |
5069 | ||
5070 | /* Craft a constructor for CLASS_DECL -- what we should do when none | |
5071 | where found. ARGS is non NULL when a special signature must be | |
5072 | enforced. This is the case for anonymous classes. */ | |
5073 | ||
5074 | static void | |
5075 | craft_constructor (class_decl, args) | |
5076 | tree class_decl, args; | |
5077 | { | |
5078 | tree class_type = TREE_TYPE (class_decl); | |
5079 | tree parm = NULL_TREE; | |
5080 | int flags = (get_access_flags_from_decl (class_decl) & ACC_PUBLIC ? | |
5081 | ACC_PUBLIC : 0); | |
5082 | int i = 0, artificial = 0; | |
5083 | tree decl, ctor_name; | |
5084 | char buffer [80]; | |
5085 | ||
5086 | push_obstacks (&permanent_obstack, &permanent_obstack); | |
5087 | ||
5088 | /* The constructor name is <init> unless we're dealing with an | |
5089 | anonymous class, in which case the name will be fixed after having | |
5090 | be expanded. */ | |
5091 | if (ANONYMOUS_CLASS_P (class_type)) | |
5092 | ctor_name = DECL_NAME (class_decl); | |
5093 | else | |
5094 | ctor_name = init_identifier_node; | |
5095 | ||
5096 | /* If we're dealing with an inner class constructor, we hide the | |
5097 | this$<n> decl in the name field of its parameter declaration. */ | |
5098 | if (PURE_INNER_CLASS_TYPE_P (class_type)) | |
5099 | { | |
5100 | tree type = TREE_TYPE (DECL_CONTEXT (TYPE_NAME (class_type))); | |
5101 | parm = tree_cons (build_current_thisn (class_type), | |
5102 | build_pointer_type (type), parm); | |
5103 | ||
5104 | /* Some more arguments to be hidden here. The values of the local | |
5105 | variables of the outer context that the inner class needs to see. */ | |
5106 | parm = build_alias_initializer_parameter_list (AIPL_FUNCTION_CREATION, | |
5107 | class_type, parm, | |
5108 | &artificial); | |
5109 | } | |
5110 | ||
5111 | /* Then if there are any args to be enforced, enforce them now */ | |
5112 | for (; args && args != end_params_node; args = TREE_CHAIN (args)) | |
5113 | { | |
5114 | sprintf (buffer, "parm%d", i++); | |
5115 | parm = tree_cons (get_identifier (buffer), TREE_VALUE (args), parm); | |
e04a16fb | 5116 | } |
c2952b01 APB |
5117 | |
5118 | CRAFTED_PARAM_LIST_FIXUP (parm); | |
5119 | decl = create_artificial_method (class_type, flags, void_type_node, | |
5120 | ctor_name, parm); | |
5121 | fix_method_argument_names (parm, decl); | |
5122 | /* Now, mark the artificial parameters. */ | |
5123 | DECL_FUNCTION_NAP (decl) = artificial; | |
5124 | ||
5125 | pop_obstacks (); | |
5126 | DECL_CONSTRUCTOR_P (decl) = 1; | |
e04a16fb AG |
5127 | } |
5128 | ||
c2952b01 | 5129 | |
e920ebc9 APB |
5130 | /* Fix the constructors. This will be called right after circular |
5131 | references have been checked. It is necessary to fix constructors | |
5132 | early even if no code generation will take place for that class: | |
5133 | some generated constructor might be required by the class whose | |
5134 | compilation triggered this one to be simply loaded. */ | |
5135 | ||
5136 | void | |
5137 | java_fix_constructors () | |
5138 | { | |
5139 | tree current; | |
5140 | ||
5141 | for (current = ctxp->class_list; current; current = TREE_CHAIN (current)) | |
5142 | { | |
e920ebc9 APB |
5143 | tree class_type = TREE_TYPE (current); |
5144 | int saw_ctor = 0; | |
c2952b01 APB |
5145 | tree decl; |
5146 | ||
5147 | if (CLASS_INTERFACE (TYPE_NAME (class_type))) | |
5148 | continue; | |
e920ebc9 APB |
5149 | |
5150 | for (decl = TYPE_METHODS (class_type); decl; decl = TREE_CHAIN (decl)) | |
5151 | { | |
5152 | if (DECL_CONSTRUCTOR_P (decl)) | |
5153 | { | |
5154 | fix_constructors (decl); | |
5155 | saw_ctor = 1; | |
5156 | } | |
5157 | } | |
5158 | ||
c2952b01 APB |
5159 | /* Anonymous class constructor can't be generated that early. */ |
5160 | if (!saw_ctor && !ANONYMOUS_CLASS_P (class_type)) | |
5161 | craft_constructor (current, NULL_TREE); | |
e920ebc9 APB |
5162 | } |
5163 | } | |
5164 | ||
23a79c61 APB |
5165 | /* safe_layout_class just makes sure that we can load a class without |
5166 | disrupting the current_class, input_file, lineno, etc, information | |
5167 | about the class processed currently. */ | |
5168 | ||
e04a16fb AG |
5169 | void |
5170 | safe_layout_class (class) | |
5171 | tree class; | |
5172 | { | |
5173 | tree save_current_class = current_class; | |
3b304f5b | 5174 | const char *save_input_filename = input_filename; |
e04a16fb | 5175 | int save_lineno = lineno; |
5e942c50 | 5176 | |
e04a16fb | 5177 | push_obstacks (&permanent_obstack, &permanent_obstack); |
5e942c50 | 5178 | |
e04a16fb AG |
5179 | layout_class (class); |
5180 | pop_obstacks (); | |
5e942c50 | 5181 | |
e04a16fb AG |
5182 | current_class = save_current_class; |
5183 | input_filename = save_input_filename; | |
5184 | lineno = save_lineno; | |
5185 | CLASS_LOADED_P (class) = 1; | |
5186 | } | |
5187 | ||
5188 | static tree | |
5189 | jdep_resolve_class (dep) | |
5190 | jdep *dep; | |
5191 | { | |
5192 | tree decl; | |
5193 | ||
23a79c61 APB |
5194 | if (JDEP_RESOLVED_P (dep)) |
5195 | decl = JDEP_RESOLVED_DECL (dep); | |
5196 | else | |
e04a16fb | 5197 | { |
c2952b01 | 5198 | decl = resolve_class (JDEP_ENCLOSING (dep), JDEP_TO_RESOLVE (dep), |
23a79c61 | 5199 | JDEP_DECL (dep), JDEP_WFL (dep)); |
e04a16fb AG |
5200 | JDEP_RESOLVED (dep, decl); |
5201 | } | |
23a79c61 | 5202 | |
e04a16fb | 5203 | if (!decl) |
23a79c61 APB |
5204 | complete_class_report_errors (dep); |
5205 | ||
e04a16fb AG |
5206 | return decl; |
5207 | } | |
5208 | ||
5209 | /* Complete unsatisfied class declaration and their dependencies */ | |
5210 | ||
5211 | void | |
5212 | java_complete_class () | |
5213 | { | |
e04a16fb AG |
5214 | tree cclass; |
5215 | jdeplist *cclassd; | |
5216 | int error_found; | |
b67d701b | 5217 | tree type; |
e04a16fb AG |
5218 | |
5219 | push_obstacks (&permanent_obstack, &permanent_obstack); | |
5220 | ||
9a7ab4b3 | 5221 | /* Process imports */ |
e04a16fb | 5222 | process_imports (); |
e04a16fb AG |
5223 | |
5224 | /* Rever things so we have the right order */ | |
5225 | ctxp->class_list = nreverse (ctxp->class_list); | |
5226 | ctxp->classd_list = reverse_jdep_list (ctxp); | |
c877974e | 5227 | |
e04a16fb AG |
5228 | for (cclassd = ctxp->classd_list, cclass = ctxp->class_list; |
5229 | cclass && cclassd; | |
5230 | cclass = TREE_CHAIN (cclass), cclassd = CLASSD_CHAIN (cclassd)) | |
5231 | { | |
5232 | jdep *dep; | |
5233 | for (dep = CLASSD_FIRST (cclassd); dep; dep = JDEP_CHAIN (dep)) | |
5234 | { | |
5235 | tree decl; | |
e04a16fb AG |
5236 | if (!(decl = jdep_resolve_class (dep))) |
5237 | continue; | |
5238 | ||
5239 | /* Now it's time to patch */ | |
5240 | switch (JDEP_KIND (dep)) | |
5241 | { | |
5242 | case JDEP_SUPER: | |
5243 | /* Simply patch super */ | |
5244 | if (parser_check_super (decl, JDEP_DECL (dep), JDEP_WFL (dep))) | |
5245 | continue; | |
5246 | BINFO_TYPE (TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO | |
5247 | (TREE_TYPE (JDEP_DECL (dep)))), 0)) = TREE_TYPE (decl); | |
5248 | break; | |
5249 | ||
5250 | case JDEP_FIELD: | |
5251 | { | |
5252 | /* We do part of the job done in add_field */ | |
5253 | tree field_decl = JDEP_DECL (dep); | |
5254 | tree field_type = TREE_TYPE (decl); | |
5255 | push_obstacks (&permanent_obstack, &permanent_obstack); | |
e04a16fb | 5256 | if (TREE_CODE (field_type) == RECORD_TYPE) |
e04a16fb AG |
5257 | field_type = promote_type (field_type); |
5258 | pop_obstacks (); | |
5259 | TREE_TYPE (field_decl) = field_type; | |
5e942c50 | 5260 | DECL_ALIGN (field_decl) = 0; |
11cf4d18 | 5261 | DECL_USER_ALIGN (field_decl) = 0; |
5e942c50 | 5262 | layout_decl (field_decl, 0); |
e04a16fb AG |
5263 | SOURCE_FRONTEND_DEBUG |
5264 | (("Completed field/var decl `%s' with `%s'", | |
5265 | IDENTIFIER_POINTER (DECL_NAME (field_decl)), | |
5266 | IDENTIFIER_POINTER (DECL_NAME (decl)))); | |
5267 | break; | |
5268 | } | |
5269 | case JDEP_METHOD: /* We start patching a method */ | |
5270 | case JDEP_METHOD_RETURN: | |
5271 | error_found = 0; | |
5272 | while (1) | |
5273 | { | |
5274 | if (decl) | |
5275 | { | |
b67d701b PB |
5276 | type = TREE_TYPE(decl); |
5277 | if (TREE_CODE (type) == RECORD_TYPE) | |
5278 | type = promote_type (type); | |
e04a16fb AG |
5279 | JDEP_APPLY_PATCH (dep, type); |
5280 | SOURCE_FRONTEND_DEBUG | |
5281 | (((JDEP_KIND (dep) == JDEP_METHOD_RETURN ? | |
5282 | "Completing fct `%s' with ret type `%s'": | |
5283 | "Completing arg `%s' with type `%s'"), | |
5284 | IDENTIFIER_POINTER (EXPR_WFL_NODE | |
5285 | (JDEP_DECL_WFL (dep))), | |
5286 | IDENTIFIER_POINTER (DECL_NAME (decl)))); | |
5287 | } | |
5288 | else | |
5289 | error_found = 1; | |
5290 | dep = JDEP_CHAIN (dep); | |
5291 | if (JDEP_KIND (dep) == JDEP_METHOD_END) | |
5292 | break; | |
5293 | else | |
5294 | decl = jdep_resolve_class (dep); | |
5295 | } | |
5296 | if (!error_found) | |
5297 | { | |
5298 | tree mdecl = JDEP_DECL (dep), signature; | |
5299 | push_obstacks (&permanent_obstack, &permanent_obstack); | |
165f37bc APB |
5300 | /* Recompute and reset the signature, check first that |
5301 | all types are now defined. If they're not, | |
5302 | dont build the signature. */ | |
5303 | if (check_method_types_complete (mdecl)) | |
5304 | { | |
5305 | signature = build_java_signature (TREE_TYPE (mdecl)); | |
5306 | set_java_signature (TREE_TYPE (mdecl), signature); | |
5307 | } | |
e04a16fb AG |
5308 | pop_obstacks (); |
5309 | } | |
5310 | else | |
5311 | continue; | |
5312 | break; | |
5313 | ||
5314 | case JDEP_INTERFACE: | |
5315 | if (parser_check_super_interface (decl, JDEP_DECL (dep), | |
5316 | JDEP_WFL (dep))) | |
5317 | continue; | |
5318 | parser_add_interface (JDEP_DECL (dep), decl, JDEP_WFL (dep)); | |
5319 | break; | |
5320 | ||
b67d701b | 5321 | case JDEP_PARM: |
e04a16fb | 5322 | case JDEP_VARIABLE: |
b67d701b PB |
5323 | type = TREE_TYPE(decl); |
5324 | if (TREE_CODE (type) == RECORD_TYPE) | |
5325 | type = promote_type (type); | |
5326 | JDEP_APPLY_PATCH (dep, type); | |
e04a16fb AG |
5327 | break; |
5328 | ||
5329 | case JDEP_TYPE: | |
5330 | JDEP_APPLY_PATCH (dep, TREE_TYPE (decl)); | |
5331 | SOURCE_FRONTEND_DEBUG | |
5332 | (("Completing a random type dependency on a '%s' node", | |
5333 | tree_code_name [TREE_CODE (JDEP_DECL (dep))])); | |
5334 | break; | |
5335 | ||
b9f7e36c | 5336 | case JDEP_EXCEPTION: |
c877974e APB |
5337 | JDEP_APPLY_PATCH (dep, TREE_TYPE (decl)); |
5338 | SOURCE_FRONTEND_DEBUG | |
5339 | (("Completing `%s' `throws' argument node", | |
5340 | IDENTIFIER_POINTER (EXPR_WFL_NODE (JDEP_WFL (dep))))); | |
b9f7e36c APB |
5341 | break; |
5342 | ||
c2952b01 APB |
5343 | case JDEP_ANONYMOUS: |
5344 | patch_anonymous_class (decl, JDEP_DECL (dep), JDEP_WFL (dep)); | |
5345 | break; | |
5346 | ||
e04a16fb | 5347 | default: |
0a2138e2 APB |
5348 | fatal ("Can't handle patch code %d - java_complete_class", |
5349 | JDEP_KIND (dep)); | |
e04a16fb AG |
5350 | } |
5351 | } | |
5352 | } | |
5353 | pop_obstacks (); | |
5354 | return; | |
5355 | } | |
5356 | ||
5357 | /* Resolve class CLASS_TYPE. Handle the case of trying to resolve an | |
5358 | array. */ | |
5359 | ||
5360 | static tree | |
c2952b01 APB |
5361 | resolve_class (enclosing, class_type, decl, cl) |
5362 | tree enclosing, class_type, decl, cl; | |
e04a16fb | 5363 | { |
49f48c71 KG |
5364 | const char *name = IDENTIFIER_POINTER (TYPE_NAME (class_type)); |
5365 | const char *base = name; | |
78d21f92 PB |
5366 | tree resolved_type = TREE_TYPE (class_type); |
5367 | tree resolved_type_decl; | |
e04a16fb | 5368 | |
78d21f92 PB |
5369 | if (resolved_type != NULL_TREE) |
5370 | { | |
5371 | tree resolved_type_decl = TYPE_NAME (resolved_type); | |
5372 | if (resolved_type_decl == NULL_TREE | |
5373 | || TREE_CODE (resolved_type_decl) == IDENTIFIER_NODE) | |
5374 | { | |
5375 | resolved_type_decl = build_decl (TYPE_DECL, | |
5376 | TYPE_NAME (class_type), | |
5377 | resolved_type); | |
5378 | } | |
5379 | return resolved_type_decl; | |
5380 | } | |
5381 | ||
e04a16fb AG |
5382 | /* 1- Check to see if we have an array. If true, find what we really |
5383 | want to resolve */ | |
5384 | while (name[0] == '[') | |
5385 | name++; | |
5386 | if (base != name) | |
5387 | TYPE_NAME (class_type) = get_identifier (name); | |
5388 | ||
5389 | /* 2- Resolve the bare type */ | |
c2952b01 APB |
5390 | if (!(resolved_type_decl = do_resolve_class (enclosing, class_type, |
5391 | decl, cl))) | |
e04a16fb AG |
5392 | return NULL_TREE; |
5393 | resolved_type = TREE_TYPE (resolved_type_decl); | |
5394 | ||
5395 | /* 3- If we have and array, reconstruct the array down to its nesting */ | |
5396 | if (base != name) | |
5397 | { | |
5398 | while (base != name) | |
5399 | { | |
5400 | if (TREE_CODE (resolved_type) == RECORD_TYPE) | |
5401 | resolved_type = promote_type (resolved_type); | |
5402 | resolved_type = build_java_array_type (resolved_type, -1); | |
c583dd46 | 5403 | CLASS_LOADED_P (resolved_type) = 1; |
e04a16fb AG |
5404 | name--; |
5405 | } | |
5406 | /* Build a fake decl for this, since this is what is expected to | |
5407 | be returned. */ | |
5408 | resolved_type_decl = | |
5409 | build_decl (TYPE_DECL, TYPE_NAME (resolved_type), resolved_type); | |
5410 | /* Figure how those two things are important for error report. FIXME */ | |
5411 | DECL_SOURCE_LINE (resolved_type_decl) = 0; | |
5412 | DECL_SOURCE_FILE (resolved_type_decl) = input_filename; | |
78d21f92 | 5413 | TYPE_NAME (class_type) = TYPE_NAME (resolved_type); |
e04a16fb | 5414 | } |
78d21f92 | 5415 | TREE_TYPE (class_type) = resolved_type; |
e04a16fb AG |
5416 | return resolved_type_decl; |
5417 | } | |
5418 | ||
5419 | /* Effectively perform the resolution of class CLASS_TYPE. DECL or CL | |
5420 | are used to report error messages. */ | |
5421 | ||
78d21f92 | 5422 | tree |
c2952b01 APB |
5423 | do_resolve_class (enclosing, class_type, decl, cl) |
5424 | tree enclosing, class_type, decl, cl; | |
e04a16fb AG |
5425 | { |
5426 | tree new_class_decl; | |
e04a16fb AG |
5427 | |
5428 | /* Do not try to replace TYPE_NAME (class_type) by a variable, since | |
9a7ab4b3 APB |
5429 | it is changed by find_in_imports{_on_demand} and (but it doesn't |
5430 | really matter) qualify_and_find */ | |
e04a16fb | 5431 | |
c2952b01 APB |
5432 | /* 0- Search in the current class as an inner class */ |
5433 | ||
5434 | /* Maybe some code here should be added to load the class or | |
5435 | something, at least if the class isn't an inner class and ended | |
5436 | being loaded from class file. FIXME. */ | |
a40d21da APB |
5437 | while (enclosing) |
5438 | { | |
5439 | tree name; | |
5440 | ||
5441 | if ((new_class_decl = find_as_inner_class (enclosing, class_type, cl))) | |
5442 | return new_class_decl; | |
5443 | ||
5444 | /* Now go to the upper classes, bail out if necessary. */ | |
5445 | enclosing = CLASSTYPE_SUPER (TREE_TYPE (enclosing)); | |
5446 | if (!enclosing || enclosing == object_type_node) | |
5447 | break; | |
5448 | ||
5449 | if (TREE_CODE (enclosing) == RECORD_TYPE) | |
5450 | { | |
5451 | enclosing = TYPE_NAME (enclosing); | |
5452 | continue; | |
5453 | } | |
5454 | ||
5455 | if (TREE_CODE (enclosing) == IDENTIFIER_NODE) | |
5456 | { | |
5457 | BUILD_PTR_FROM_NAME (name, enclosing); | |
5458 | } | |
5459 | else | |
5460 | name = enclosing; | |
5461 | enclosing = do_resolve_class (NULL, name, NULL, NULL); | |
5462 | } | |
c2952b01 | 5463 | |
9a7ab4b3 APB |
5464 | /* 1- Check for the type in single imports. This will change |
5465 | TYPE_NAME() if something relevant is found */ | |
5466 | find_in_imports (class_type); | |
e04a16fb | 5467 | |
9a7ab4b3 | 5468 | /* 2- And check for the type in the current compilation unit */ |
e04a16fb AG |
5469 | if ((new_class_decl = IDENTIFIER_CLASS_VALUE (TYPE_NAME (class_type)))) |
5470 | { | |
5471 | if (!CLASS_LOADED_P (TREE_TYPE (new_class_decl)) && | |
5472 | !CLASS_FROM_SOURCE_P (TREE_TYPE (new_class_decl))) | |
5473 | load_class (TYPE_NAME (class_type), 0); | |
5474 | return IDENTIFIER_CLASS_VALUE (TYPE_NAME (class_type)); | |
5475 | } | |
5476 | ||
9a7ab4b3 APB |
5477 | /* 3- Search according to the current package definition */ |
5478 | if (!QUALIFIED_P (TYPE_NAME (class_type))) | |
5479 | { | |
5480 | if ((new_class_decl = qualify_and_find (class_type, ctxp->package, | |
5481 | TYPE_NAME (class_type)))) | |
5482 | return new_class_decl; | |
5483 | } | |
5484 | ||
5485 | /* 4- Check the import on demands. Don't allow bar.baz to be | |
5486 | imported from foo.* */ | |
5487 | if (!QUALIFIED_P (TYPE_NAME (class_type))) | |
5488 | if (find_in_imports_on_demand (class_type)) | |
5489 | return NULL_TREE; | |
5490 | ||
5491 | /* If found in find_in_imports_on_demant, the type has already been | |
5492 | loaded. */ | |
5493 | if ((new_class_decl = IDENTIFIER_CLASS_VALUE (TYPE_NAME (class_type)))) | |
5494 | return new_class_decl; | |
5495 | ||
5496 | /* 5- Try with a name qualified with the package name we've seen so far */ | |
ee07f4f4 | 5497 | if (!QUALIFIED_P (TYPE_NAME (class_type))) |
bc3ca41b | 5498 | { |
ee07f4f4 APB |
5499 | tree package; |
5500 | for (package = package_list; package; package = TREE_CHAIN (package)) | |
9a7ab4b3 APB |
5501 | if ((new_class_decl = qualify_and_find (class_type, |
5502 | TREE_PURPOSE (package), | |
5503 | TYPE_NAME (class_type)))) | |
5504 | return new_class_decl; | |
5505 | } | |
5506 | ||
5507 | /* 5- Check an other compilation unit that bears the name of type */ | |
e04a16fb AG |
5508 | load_class (TYPE_NAME (class_type), 0); |
5509 | if (check_pkg_class_access (TYPE_NAME (class_type), | |
5510 | (cl ? cl : lookup_cl (decl)))) | |
5511 | return NULL_TREE; | |
5512 | ||
5513 | if ((new_class_decl = IDENTIFIER_CLASS_VALUE (TYPE_NAME (class_type)))) | |
5514 | return new_class_decl; | |
5515 | ||
9a7ab4b3 | 5516 | /* 6- Last call for a resolution */ |
e04a16fb AG |
5517 | return IDENTIFIER_CLASS_VALUE (TYPE_NAME (class_type)); |
5518 | } | |
5519 | ||
9a7ab4b3 APB |
5520 | static tree |
5521 | qualify_and_find (class_type, package, name) | |
5522 | tree class_type, package, name; | |
5523 | { | |
5524 | tree new_qualified = merge_qualified_name (package, name); | |
5525 | tree new_class_decl; | |
5526 | ||
5527 | if (!IDENTIFIER_CLASS_VALUE (new_qualified)) | |
5528 | load_class (new_qualified, 0); | |
5529 | if ((new_class_decl = IDENTIFIER_CLASS_VALUE (new_qualified))) | |
5530 | { | |
5531 | if (!CLASS_LOADED_P (TREE_TYPE (new_class_decl)) && | |
5532 | !CLASS_FROM_SOURCE_P (TREE_TYPE (new_class_decl))) | |
5533 | load_class (new_qualified, 0); | |
5534 | TYPE_NAME (class_type) = new_qualified; | |
5535 | return IDENTIFIER_CLASS_VALUE (new_qualified); | |
5536 | } | |
5537 | return NULL_TREE; | |
5538 | } | |
5539 | ||
e04a16fb | 5540 | /* Resolve NAME and lay it out (if not done and if not the current |
23a79c61 APB |
5541 | parsed class). Return a decl node. This function is meant to be |
5542 | called when type resolution is necessary during the walk pass. */ | |
e04a16fb AG |
5543 | |
5544 | static tree | |
c877974e APB |
5545 | resolve_and_layout (something, cl) |
5546 | tree something; | |
e04a16fb AG |
5547 | tree cl; |
5548 | { | |
c877974e APB |
5549 | tree decl; |
5550 | ||
23a79c61 APB |
5551 | /* Don't do that on the current class */ |
5552 | if (something == current_class) | |
5553 | return TYPE_NAME (current_class); | |
c877974e | 5554 | |
23a79c61 | 5555 | /* Don't do anything for void and other primitive types */ |
c877974e APB |
5556 | if (JPRIMITIVE_TYPE_P (something) || something == void_type_node) |
5557 | return NULL_TREE; | |
5558 | ||
23a79c61 APB |
5559 | /* Pointer types can be reall pointer types or fake pointers. When |
5560 | finding a real pointer, recheck for primitive types */ | |
5561 | if (TREE_CODE (something) == POINTER_TYPE) | |
5562 | { | |
5563 | if (TREE_TYPE (something)) | |
5564 | { | |
5565 | something = TREE_TYPE (something); | |
5566 | if (JPRIMITIVE_TYPE_P (something) || something == void_type_node) | |
5567 | return NULL_TREE; | |
5568 | } | |
5569 | else | |
5570 | something = TYPE_NAME (something); | |
5571 | } | |
5572 | ||
5573 | /* Don't do anything for arrays of primitive types */ | |
5574 | if (TREE_CODE (something) == RECORD_TYPE && TYPE_ARRAY_P (something) | |
5575 | && JPRIMITIVE_TYPE_P (TYPE_ARRAY_ELEMENT (something))) | |
5576 | return NULL_TREE; | |
5577 | ||
c2952b01 APB |
5578 | /* Something might be a WFL */ |
5579 | if (TREE_CODE (something) == EXPR_WITH_FILE_LOCATION) | |
5580 | something = EXPR_WFL_NODE (something); | |
5581 | ||
5582 | /* Otherwise, if something is not and IDENTIFIER_NODE, it can be a a | |
5583 | TYPE_DECL or a real TYPE */ | |
5584 | else if (TREE_CODE (something) != IDENTIFIER_NODE) | |
c877974e APB |
5585 | something = (TREE_CODE (TYPE_NAME (something)) == TYPE_DECL ? |
5586 | DECL_NAME (TYPE_NAME (something)) : TYPE_NAME (something)); | |
5587 | ||
23a79c61 APB |
5588 | if (!(decl = resolve_no_layout (something, cl))) |
5589 | return NULL_TREE; | |
5590 | ||
5591 | /* Resolve and layout if necessary */ | |
5592 | layout_class_methods (TREE_TYPE (decl)); | |
7705e9db APB |
5593 | /* Check methods, but only once */ |
5594 | if (CLASS_FROM_SOURCE_P (TREE_TYPE (decl)) | |
5595 | && !CLASS_LOADED_P (TREE_TYPE (decl))) | |
23a79c61 APB |
5596 | CHECK_METHODS (decl); |
5597 | if (TREE_TYPE (decl) != current_class && !CLASS_LOADED_P (TREE_TYPE (decl))) | |
e04a16fb | 5598 | safe_layout_class (TREE_TYPE (decl)); |
23a79c61 | 5599 | |
e04a16fb AG |
5600 | return decl; |
5601 | } | |
5602 | ||
5603 | /* Resolve a class, returns its decl but doesn't perform any | |
5604 | layout. The current parsing context is saved and restored */ | |
5605 | ||
5606 | static tree | |
5607 | resolve_no_layout (name, cl) | |
5608 | tree name, cl; | |
5609 | { | |
5610 | tree ptr, decl; | |
5611 | BUILD_PTR_FROM_NAME (ptr, name); | |
5612 | java_parser_context_save_global (); | |
c2952b01 | 5613 | decl = resolve_class (TYPE_NAME (current_class), ptr, NULL_TREE, cl); |
e04a16fb AG |
5614 | java_parser_context_restore_global (); |
5615 | ||
5616 | return decl; | |
5617 | } | |
5618 | ||
23a79c61 APB |
5619 | /* Called when reporting errors. Skip leader '[' in a complex array |
5620 | type description that failed to be resolved. */ | |
e04a16fb | 5621 | |
49f48c71 | 5622 | static const char * |
e04a16fb | 5623 | purify_type_name (name) |
49f48c71 | 5624 | const char *name; |
e04a16fb AG |
5625 | { |
5626 | while (*name && *name == '[') | |
5627 | name++; | |
5628 | return name; | |
5629 | } | |
5630 | ||
5631 | /* The type CURRENT refers to can't be found. We print error messages. */ | |
5632 | ||
5633 | static void | |
5634 | complete_class_report_errors (dep) | |
5635 | jdep *dep; | |
5636 | { | |
49f48c71 | 5637 | const char *name; |
23a79c61 APB |
5638 | |
5639 | if (!JDEP_WFL (dep)) | |
5640 | return; | |
5641 | ||
5642 | name = IDENTIFIER_POINTER (EXPR_WFL_NODE (JDEP_WFL (dep))); | |
e04a16fb AG |
5643 | switch (JDEP_KIND (dep)) |
5644 | { | |
5645 | case JDEP_SUPER: | |
5646 | parse_error_context | |
5647 | (JDEP_WFL (dep), "Superclass `%s' of class `%s' not found", | |
23a79c61 | 5648 | purify_type_name (name), |
e04a16fb AG |
5649 | IDENTIFIER_POINTER (DECL_NAME (JDEP_DECL (dep)))); |
5650 | break; | |
5651 | case JDEP_FIELD: | |
5652 | parse_error_context | |
5653 | (JDEP_WFL (dep), "Type `%s' not found in declaration of field `%s'", | |
23a79c61 | 5654 | purify_type_name (name), |
e04a16fb AG |
5655 | IDENTIFIER_POINTER (DECL_NAME (JDEP_DECL (dep)))); |
5656 | break; | |
5657 | case JDEP_METHOD: /* Covers arguments */ | |
5658 | parse_error_context | |
781b0558 | 5659 | (JDEP_WFL (dep), "Type `%s' not found in the declaration of the argument `%s' of method `%s'", |
23a79c61 | 5660 | purify_type_name (name), |
e04a16fb AG |
5661 | IDENTIFIER_POINTER (EXPR_WFL_NODE (JDEP_DECL_WFL (dep))), |
5662 | IDENTIFIER_POINTER (EXPR_WFL_NODE (JDEP_MISC (dep)))); | |
5663 | break; | |
5664 | case JDEP_METHOD_RETURN: /* Covers return type */ | |
5665 | parse_error_context | |
781b0558 | 5666 | (JDEP_WFL (dep), "Type `%s' not found in the declaration of the return type of method `%s'", |
23a79c61 | 5667 | purify_type_name (name), |
e04a16fb AG |
5668 | IDENTIFIER_POINTER (EXPR_WFL_NODE (JDEP_DECL_WFL (dep)))); |
5669 | break; | |
5670 | case JDEP_INTERFACE: | |
5671 | parse_error_context | |
5672 | (JDEP_WFL (dep), "Superinterface `%s' of %s `%s' not found", | |
5673 | IDENTIFIER_POINTER (EXPR_WFL_NODE (JDEP_WFL (dep))), | |
5674 | (CLASS_OR_INTERFACE (JDEP_DECL (dep), "class", "interface")), | |
5675 | IDENTIFIER_POINTER (DECL_NAME (JDEP_DECL (dep)))); | |
5676 | break; | |
5677 | case JDEP_VARIABLE: | |
5678 | parse_error_context | |
781b0558 | 5679 | (JDEP_WFL (dep), "Type `%s' not found in the declaration of the local variable `%s'", |
b67d701b PB |
5680 | purify_type_name (IDENTIFIER_POINTER |
5681 | (EXPR_WFL_NODE (JDEP_WFL (dep)))), | |
e04a16fb AG |
5682 | IDENTIFIER_POINTER (DECL_NAME (JDEP_DECL (dep)))); |
5683 | break; | |
b9f7e36c APB |
5684 | case JDEP_EXCEPTION: /* As specified by `throws' */ |
5685 | parse_error_context | |
5686 | (JDEP_WFL (dep), "Class `%s' not found in `throws'", | |
5687 | IDENTIFIER_POINTER (EXPR_WFL_NODE (JDEP_WFL (dep)))); | |
5688 | break; | |
0a2138e2 APB |
5689 | default: |
5690 | /* Fix for -Wall. Just break doing nothing. The error will be | |
5691 | caught later */ | |
5692 | break; | |
e04a16fb AG |
5693 | } |
5694 | } | |
5695 | ||
22eed1e6 APB |
5696 | /* Return a static string containing the DECL prototype string. If |
5697 | DECL is a constructor, use the class name instead of the form | |
5698 | <init> */ | |
5699 | ||
49f48c71 | 5700 | static const char * |
22eed1e6 APB |
5701 | get_printable_method_name (decl) |
5702 | tree decl; | |
5703 | { | |
49f48c71 | 5704 | const char *to_return; |
9ee9b555 | 5705 | tree name = NULL_TREE; |
22eed1e6 APB |
5706 | |
5707 | if (DECL_CONSTRUCTOR_P (decl)) | |
5708 | { | |
5709 | name = DECL_NAME (decl); | |
5e942c50 | 5710 | DECL_NAME (decl) = DECL_NAME (TYPE_NAME (DECL_CONTEXT (decl))); |
22eed1e6 APB |
5711 | } |
5712 | ||
5713 | to_return = lang_printable_name (decl, 0); | |
5714 | if (DECL_CONSTRUCTOR_P (decl)) | |
5715 | DECL_NAME (decl) = name; | |
5716 | ||
5717 | return to_return; | |
5718 | } | |
5719 | ||
5e942c50 APB |
5720 | /* Reinstall the proper DECL_NAME on METHOD. Return 0 if the method |
5721 | nevertheless needs to be verfied, 1 otherwise. */ | |
5722 | ||
5723 | static int | |
5724 | reset_method_name (method) | |
5725 | tree method; | |
5726 | { | |
c2952b01 | 5727 | if (!DECL_CLINIT_P (method) && !DECL_FINIT_P (method)) |
5e942c50 APB |
5728 | { |
5729 | /* NAME is just the plain name when Object is being defined */ | |
5730 | if (DECL_CONTEXT (method) != object_type_node) | |
c877974e APB |
5731 | DECL_NAME (method) = (DECL_CONSTRUCTOR_P (method) ? |
5732 | init_identifier_node : GET_METHOD_NAME (method)); | |
5e942c50 APB |
5733 | return 0; |
5734 | } | |
5735 | else | |
5736 | return 1; | |
5737 | } | |
5738 | ||
c877974e APB |
5739 | /* Return the name of METHOD_DECL, when DECL_NAME is a WFL */ |
5740 | ||
5741 | tree | |
5742 | java_get_real_method_name (method_decl) | |
5743 | tree method_decl; | |
5744 | { | |
5745 | tree method_name = DECL_NAME (method_decl); | |
5746 | if (DECL_CONSTRUCTOR_P (method_decl)) | |
5747 | return init_identifier_node; | |
82371d41 APB |
5748 | |
5749 | /* Explain here why METHOD_DECL doesn't have the DECL_CONSTRUCTUR_P | |
5750 | and still can be a constructor. FIXME */ | |
5751 | ||
23a79c61 APB |
5752 | /* Don't confuse method only bearing the name of their class as |
5753 | constructors */ | |
82371d41 APB |
5754 | else if (!CLASS_FROM_SOURCE_P (DECL_CONTEXT (method_decl)) |
5755 | && ctxp | |
c2952b01 | 5756 | && GET_CPC_UN () == EXPR_WFL_NODE (method_name) |
23a79c61 APB |
5757 | && get_access_flags_from_decl (method_decl) <= ACC_PROTECTED |
5758 | && TREE_TYPE (TREE_TYPE (method_decl)) == void_type_node) | |
c877974e APB |
5759 | return init_identifier_node; |
5760 | else | |
5761 | return EXPR_WFL_NODE (method_name); | |
5762 | } | |
5763 | ||
22eed1e6 APB |
5764 | /* Track method being redefined inside the same class. As a side |
5765 | effect, set DECL_NAME to an IDENTIFIER (prior entering this | |
d77613be | 5766 | function it's a FWL, so we can track errors more accurately.) */ |
22eed1e6 | 5767 | |
e04a16fb AG |
5768 | static int |
5769 | check_method_redefinition (class, method) | |
5770 | tree class, method; | |
5771 | { | |
5772 | tree redef, name; | |
5773 | tree cl = DECL_NAME (method); | |
c3f2a476 | 5774 | tree sig = TYPE_ARGUMENT_SIGNATURE (TREE_TYPE (method)); |
ba179f9f APB |
5775 | /* decl name of artificial <clinit> and $finit$ doesn't need to be |
5776 | fixed and checked */ | |
5e942c50 APB |
5777 | |
5778 | /* Reset the method name before running the check. If it returns 1, | |
5779 | the method doesn't need to be verified with respect to method | |
5780 | redeclaration and we return 0 */ | |
5781 | if (reset_method_name (method)) | |
e04a16fb | 5782 | return 0; |
5e942c50 APB |
5783 | |
5784 | name = DECL_NAME (method); | |
e04a16fb AG |
5785 | for (redef = TYPE_METHODS (class); redef; redef = TREE_CHAIN (redef)) |
5786 | { | |
c3f2a476 | 5787 | if (redef == method) |
e04a16fb | 5788 | break; |
c3f2a476 APB |
5789 | if (DECL_NAME (redef) == name |
5790 | && sig == TYPE_ARGUMENT_SIGNATURE (TREE_TYPE (redef))) | |
e04a16fb | 5791 | { |
22eed1e6 APB |
5792 | parse_error_context |
5793 | (cl, "Duplicate %s declaration `%s'", | |
5794 | (DECL_CONSTRUCTOR_P (redef) ? "constructor" : "method"), | |
5795 | get_printable_method_name (redef)); | |
e04a16fb AG |
5796 | return 1; |
5797 | } | |
5798 | } | |
5799 | return 0; | |
5800 | } | |
5801 | ||
d77613be APB |
5802 | static void |
5803 | check_abstract_method_definitions (do_interface, class_decl, type) | |
5804 | int do_interface; | |
5805 | tree class_decl, type; | |
5806 | { | |
5807 | tree class = TREE_TYPE (class_decl); | |
5808 | tree method, end_type; | |
5809 | ||
5810 | end_type = (do_interface ? object_type_node : type); | |
5811 | for (method = TYPE_METHODS (type); method; method = TREE_CHAIN (method)) | |
5812 | { | |
5813 | tree other_super, other_method, method_sig, method_name; | |
5814 | int found = 0; | |
165f37bc | 5815 | int end_type_reached = 0; |
d77613be APB |
5816 | |
5817 | if (!METHOD_ABSTRACT (method) || METHOD_FINAL (method)) | |
5818 | continue; | |
5819 | ||
5820 | /* Now verify that somewhere in between TYPE and CLASS, | |
5821 | abstract method METHOD gets a non abstract definition | |
5822 | that is inherited by CLASS. */ | |
5823 | ||
5824 | method_sig = build_java_signature (TREE_TYPE (method)); | |
5825 | method_name = DECL_NAME (method); | |
5826 | if (TREE_CODE (method_name) == EXPR_WITH_FILE_LOCATION) | |
5827 | method_name = EXPR_WFL_NODE (method_name); | |
5828 | ||
165f37bc APB |
5829 | other_super = class; |
5830 | do { | |
5831 | if (other_super == end_type) | |
5832 | end_type_reached = 1; | |
5833 | ||
5834 | /* Method search */ | |
5835 | for (other_method = TYPE_METHODS (other_super); other_method; | |
5836 | other_method = TREE_CHAIN (other_method)) | |
5837 | { | |
5838 | tree s = build_java_signature (TREE_TYPE (other_method)); | |
5839 | tree other_name = DECL_NAME (other_method); | |
5840 | ||
5841 | if (TREE_CODE (other_name) == EXPR_WITH_FILE_LOCATION) | |
5842 | other_name = EXPR_WFL_NODE (other_name); | |
5843 | if (!DECL_CLINIT_P (other_method) | |
5844 | && !DECL_CONSTRUCTOR_P (other_method) | |
5845 | && method_name == other_name && method_sig == s) | |
5846 | { | |
5847 | found = 1; | |
5848 | break; | |
5849 | } | |
5850 | } | |
5851 | other_super = CLASSTYPE_SUPER (other_super); | |
5852 | } while (!end_type_reached); | |
5853 | ||
d77613be APB |
5854 | /* Report that abstract METHOD didn't find an implementation |
5855 | that CLASS can use. */ | |
5856 | if (!found) | |
5857 | { | |
c2e3db92 | 5858 | char *t = xstrdup (lang_printable_name |
d77613be APB |
5859 | (TREE_TYPE (TREE_TYPE (method)), 0)); |
5860 | tree ccn = DECL_NAME (TYPE_NAME (DECL_CONTEXT (method))); | |
5861 | tree saved_wfl = NULL_TREE; | |
5862 | ||
5863 | if (TREE_CODE (DECL_NAME (method)) == EXPR_WITH_FILE_LOCATION) | |
5864 | { | |
5865 | saved_wfl = DECL_NAME (method); | |
5866 | DECL_NAME (method) = EXPR_WFL_NODE (DECL_NAME (method)); | |
5867 | } | |
5868 | ||
5869 | parse_error_context | |
5870 | (lookup_cl (class_decl), | |
781b0558 | 5871 | "Class `%s' doesn't define the abstract method `%s %s' from %s `%s'. This method must be defined or %s `%s' must be declared abstract", |
d77613be APB |
5872 | IDENTIFIER_POINTER (DECL_NAME (class_decl)), |
5873 | t, lang_printable_name (method, 0), | |
5874 | (CLASS_INTERFACE (TYPE_NAME (DECL_CONTEXT (method))) ? | |
5875 | "interface" : "class"), | |
5876 | IDENTIFIER_POINTER (ccn), | |
5877 | (CLASS_INTERFACE (class_decl) ? "interface" : "class"), | |
5878 | IDENTIFIER_POINTER (DECL_NAME (class_decl))); | |
5879 | ||
5880 | free (t); | |
5881 | ||
5882 | if (saved_wfl) | |
5883 | DECL_NAME (method) = saved_wfl; | |
5884 | } | |
5885 | } | |
5886 | } | |
5887 | ||
614eaae0 | 5888 | /* Check that CLASS_DECL somehow implements all inherited abstract |
d77613be APB |
5889 | methods. */ |
5890 | ||
5891 | static void | |
5892 | java_check_abstract_method_definitions (class_decl) | |
5893 | tree class_decl; | |
5894 | { | |
5895 | tree class = TREE_TYPE (class_decl); | |
5896 | tree super, vector; | |
5897 | int i; | |
5898 | ||
5899 | if (CLASS_ABSTRACT (class_decl)) | |
5900 | return; | |
5901 | ||
5902 | /* Check for inherited types */ | |
165f37bc APB |
5903 | super = class; |
5904 | do { | |
5905 | super = CLASSTYPE_SUPER (super); | |
5906 | check_abstract_method_definitions (0, class_decl, super); | |
5907 | } while (super != object_type_node); | |
d77613be APB |
5908 | |
5909 | /* Check for implemented interfaces. */ | |
5910 | vector = TYPE_BINFO_BASETYPES (class); | |
5911 | for (i = 1; i < TREE_VEC_LENGTH (vector); i++) | |
5912 | { | |
5913 | super = BINFO_TYPE (TREE_VEC_ELT (vector, i)); | |
5914 | check_abstract_method_definitions (1, class_decl, super); | |
5915 | } | |
5916 | } | |
5917 | ||
165f37bc APB |
5918 | /* Check all the types method DECL uses and return 1 if all of them |
5919 | are now complete, 0 otherwise. This is used to check whether its | |
5920 | safe to build a method signature or not. */ | |
5921 | ||
5922 | static int | |
5923 | check_method_types_complete (decl) | |
5924 | tree decl; | |
5925 | { | |
5926 | tree type = TREE_TYPE (decl); | |
5927 | tree args; | |
5928 | ||
5929 | if (!INCOMPLETE_TYPE_P (TREE_TYPE (type))) | |
5930 | return 0; | |
5931 | ||
5932 | args = TYPE_ARG_TYPES (type); | |
5933 | if (TREE_CODE (type) == METHOD_TYPE) | |
5934 | args = TREE_CHAIN (args); | |
5935 | for (; args != end_params_node; args = TREE_CHAIN (args)) | |
5936 | if (INCOMPLETE_TYPE_P (TREE_VALUE (args))) | |
5937 | return 0; | |
5938 | ||
5939 | return 1; | |
5940 | } | |
5941 | ||
d77613be APB |
5942 | /* Check all the methods of CLASS_DECL. Methods are first completed |
5943 | then checked according to regular method existance rules. If no | |
5944 | constructor for CLASS_DECL were encountered, then build its | |
5945 | declaration. */ | |
e04a16fb AG |
5946 | |
5947 | static void | |
5948 | java_check_regular_methods (class_decl) | |
5949 | tree class_decl; | |
5950 | { | |
c2952b01 | 5951 | int saw_constructor = ANONYMOUS_CLASS_P (TREE_TYPE (class_decl)); |
e04a16fb AG |
5952 | tree method; |
5953 | tree class = CLASS_TO_HANDLE_TYPE (TREE_TYPE (class_decl)); | |
5e942c50 | 5954 | tree saved_found_wfl = NULL_TREE, found = NULL_TREE; |
c877974e APB |
5955 | tree mthrows; |
5956 | ||
5957 | /* It is not necessary to check methods defined in java.lang.Object */ | |
5958 | if (class == object_type_node) | |
5959 | return; | |
e04a16fb | 5960 | |
23a79c61 APB |
5961 | if (!TYPE_NVIRTUALS (class)) |
5962 | TYPE_METHODS (class) = nreverse (TYPE_METHODS (class)); | |
e04a16fb AG |
5963 | |
5964 | /* Should take interfaces into account. FIXME */ | |
5965 | for (method = TYPE_METHODS (class); method; method = TREE_CHAIN (method)) | |
5966 | { | |
5e942c50 | 5967 | tree sig; |
e04a16fb AG |
5968 | tree method_wfl = DECL_NAME (method); |
5969 | int aflags; | |
5970 | ||
5e942c50 APB |
5971 | /* If we previously found something and its name was saved, |
5972 | reinstall it now */ | |
5973 | if (found && saved_found_wfl) | |
ba179f9f APB |
5974 | { |
5975 | DECL_NAME (found) = saved_found_wfl; | |
5976 | saved_found_wfl = NULL_TREE; | |
5977 | } | |
5e942c50 | 5978 | |
e04a16fb AG |
5979 | /* Check for redefinitions */ |
5980 | if (check_method_redefinition (class, method)) | |
5981 | continue; | |
5982 | ||
22eed1e6 APB |
5983 | /* If we see one constructor a mark so we don't generate the |
5984 | default one. Also skip other verifications: constructors | |
5985 | can't be inherited hence hiden or overriden */ | |
5986 | if (DECL_CONSTRUCTOR_P (method)) | |
5987 | { | |
5988 | saw_constructor = 1; | |
5989 | continue; | |
5990 | } | |
5991 | ||
c877974e APB |
5992 | /* We verify things thrown by the method. They must inherits from |
5993 | java.lang.Throwable */ | |
5994 | for (mthrows = DECL_FUNCTION_THROWS (method); | |
5995 | mthrows; mthrows = TREE_CHAIN (mthrows)) | |
5996 | { | |
5997 | if (!inherits_from_p (TREE_VALUE (mthrows), throwable_type_node)) | |
5998 | parse_error_context | |
781b0558 | 5999 | (TREE_PURPOSE (mthrows), "Class `%s' in `throws' clause must be a subclass of class `java.lang.Throwable'", |
c877974e APB |
6000 | IDENTIFIER_POINTER |
6001 | (DECL_NAME (TYPE_NAME (TREE_VALUE (mthrows))))); | |
6002 | } | |
6003 | ||
e04a16fb | 6004 | sig = build_java_argument_signature (TREE_TYPE (method)); |
614eaae0 | 6005 | found = lookup_argument_method2 (class, DECL_NAME (method), sig); |
b9f7e36c | 6006 | |
c2952b01 APB |
6007 | /* Inner class can't declare static methods */ |
6008 | if (METHOD_STATIC (method) && !TOPLEVEL_CLASS_DECL_P (class_decl)) | |
6009 | { | |
6010 | char *t = xstrdup (lang_printable_name (class, 0)); | |
6011 | parse_error_context | |
6012 | (method_wfl, "Method `%s' can't be static in inner class `%s'. Only members of interfaces and top-level classes can be static", | |
6013 | lang_printable_name (method, 0), t); | |
6014 | free (t); | |
6015 | } | |
6016 | ||
5e942c50 | 6017 | /* Nothing overrides or it's a private method. */ |
aabd7048 | 6018 | if (!found) |
5e942c50 | 6019 | continue; |
aabd7048 PB |
6020 | if (METHOD_PRIVATE (found)) |
6021 | { | |
6022 | found = NULL_TREE; | |
6023 | continue; | |
6024 | } | |
5e942c50 APB |
6025 | |
6026 | /* If found wasn't verified, it's DECL_NAME won't be set properly. | |
6027 | We set it temporarily for the sake of the error report. */ | |
6028 | saved_found_wfl = DECL_NAME (found); | |
6029 | reset_method_name (found); | |
6030 | ||
614eaae0 APB |
6031 | /* If `found' is declared in an interface, make sure the |
6032 | modifier matches. */ | |
6033 | if (CLASS_INTERFACE (TYPE_NAME (DECL_CONTEXT (found))) | |
6034 | && clinit_identifier_node != DECL_NAME (found) | |
6035 | && !METHOD_PUBLIC (method)) | |
6036 | { | |
6037 | tree found_decl = TYPE_NAME (DECL_CONTEXT (found)); | |
6038 | parse_error_context (method_wfl, "Class `%s' must override `%s' with a public method in order to implement interface `%s'", | |
6039 | IDENTIFIER_POINTER (DECL_NAME (class_decl)), | |
6040 | lang_printable_name (method, 0), | |
6041 | IDENTIFIER_POINTER (DECL_NAME (found_decl))); | |
6042 | } | |
6043 | ||
e04a16fb AG |
6044 | /* Can't override a method with the same name and different return |
6045 | types. */ | |
6046 | if (TREE_TYPE (TREE_TYPE (found)) != TREE_TYPE (TREE_TYPE (method))) | |
b9f7e36c | 6047 | { |
614eaae0 APB |
6048 | char *t = xstrdup |
6049 | (lang_printable_name (TREE_TYPE (TREE_TYPE (found)), 0)); | |
b9f7e36c | 6050 | parse_error_context |
7f10c2e2 | 6051 | (method_wfl, |
b9f7e36c | 6052 | "Method `%s' was defined with return type `%s' in class `%s'", |
0a2138e2 | 6053 | lang_printable_name (found, 0), t, |
b9f7e36c APB |
6054 | IDENTIFIER_POINTER |
6055 | (DECL_NAME (TYPE_NAME (DECL_CONTEXT (found))))); | |
6056 | free (t); | |
6057 | } | |
e04a16fb | 6058 | |
7f10c2e2 APB |
6059 | aflags = get_access_flags_from_decl (found); |
6060 | /* If the method has default, access in an other package, then | |
6061 | issue a warning that the current method doesn't override the | |
6062 | one that was found elsewhere. Do not issue this warning when | |
6063 | the match was found in java.lang.Object. */ | |
6064 | if (DECL_CONTEXT (found) != object_type_node | |
a003f638 | 6065 | && ((aflags & ACC_VISIBILITY) == 0) |
7f10c2e2 | 6066 | && !class_in_current_package (DECL_CONTEXT (found)) |
c2952b01 | 6067 | && !DECL_CLINIT_P (found) |
7f10c2e2 APB |
6068 | && flag_not_overriding) |
6069 | { | |
6070 | parse_warning_context | |
781b0558 | 6071 | (method_wfl, "Method `%s' in class `%s' does not override the corresponding method in class `%s', which is private to a different package", |
7f10c2e2 APB |
6072 | lang_printable_name (found, 0), |
6073 | IDENTIFIER_POINTER (DECL_NAME (class_decl)), | |
6074 | IDENTIFIER_POINTER (DECL_NAME | |
6075 | (TYPE_NAME (DECL_CONTEXT (found))))); | |
6076 | continue; | |
6077 | } | |
6078 | ||
e04a16fb AG |
6079 | /* Can't override final. Can't override static. */ |
6080 | if (METHOD_FINAL (found) || METHOD_STATIC (found)) | |
6081 | { | |
6082 | /* Static *can* override static */ | |
6083 | if (METHOD_STATIC (found) && METHOD_STATIC (method)) | |
6084 | continue; | |
6085 | parse_error_context | |
6086 | (method_wfl, | |
6087 | "%s methods can't be overriden. Method `%s' is %s in class `%s'", | |
6088 | (METHOD_FINAL (found) ? "Final" : "Static"), | |
0a2138e2 | 6089 | lang_printable_name (found, 0), |
e04a16fb AG |
6090 | (METHOD_FINAL (found) ? "final" : "static"), |
6091 | IDENTIFIER_POINTER | |
6092 | (DECL_NAME (TYPE_NAME (DECL_CONTEXT (found))))); | |
6093 | continue; | |
6094 | } | |
7f10c2e2 | 6095 | |
e04a16fb AG |
6096 | /* Static method can't override instance method. */ |
6097 | if (METHOD_STATIC (method)) | |
6098 | { | |
6099 | parse_error_context | |
6100 | (method_wfl, | |
781b0558 | 6101 | "Instance methods can't be overriden by a static method. Method `%s' is an instance method in class `%s'", |
0a2138e2 | 6102 | lang_printable_name (found, 0), |
e04a16fb AG |
6103 | IDENTIFIER_POINTER |
6104 | (DECL_NAME (TYPE_NAME (DECL_CONTEXT (found))))); | |
6105 | continue; | |
6106 | } | |
5e942c50 | 6107 | |
5e942c50 APB |
6108 | /* - Overriding/hiding public must be public |
6109 | - Overriding/hiding protected must be protected or public | |
6110 | - If the overriden or hidden method has default (package) | |
6111 | access, then the overriding or hiding method must not be | |
614eaae0 APB |
6112 | private; otherwise, a compile-time error occurs. If |
6113 | `found' belongs to an interface, things have been already | |
6114 | taken care of. */ | |
6115 | if (!CLASS_INTERFACE (TYPE_NAME (DECL_CONTEXT (found))) | |
6116 | && ((METHOD_PUBLIC (found) && !METHOD_PUBLIC (method)) | |
6117 | || (METHOD_PROTECTED (found) | |
6118 | && !(METHOD_PUBLIC (method) || METHOD_PROTECTED (method))) | |
6119 | || (!(aflags & (ACC_PUBLIC | ACC_PRIVATE | ACC_STATIC)) | |
6120 | && METHOD_PRIVATE (method)))) | |
e04a16fb AG |
6121 | { |
6122 | parse_error_context | |
6123 | (method_wfl, | |
781b0558 | 6124 | "Methods can't be overridden to be more private. Method `%s' is not %s in class `%s'", lang_printable_name (method, 0), |
5e942c50 APB |
6125 | (METHOD_PUBLIC (method) ? "public" : |
6126 | (METHOD_PRIVATE (method) ? "private" : "protected")), | |
6127 | IDENTIFIER_POINTER (DECL_NAME | |
6128 | (TYPE_NAME (DECL_CONTEXT (found))))); | |
e04a16fb AG |
6129 | continue; |
6130 | } | |
6131 | ||
b9f7e36c APB |
6132 | /* Overriding methods must have compatible `throws' clauses on checked |
6133 | exceptions, if any */ | |
6134 | check_throws_clauses (method, method_wfl, found); | |
6135 | ||
e04a16fb AG |
6136 | /* Inheriting multiple methods with the same signature. FIXME */ |
6137 | } | |
6138 | ||
5e942c50 APB |
6139 | /* Don't forget eventual pending found and saved_found_wfl. Take |
6140 | into account that we might have exited because we saw an | |
d77613be | 6141 | artificial method as the last entry. */ |
5e942c50 APB |
6142 | |
6143 | if (found && !DECL_ARTIFICIAL (found) && saved_found_wfl) | |
6144 | DECL_NAME (found) = saved_found_wfl; | |
6145 | ||
23a79c61 APB |
6146 | if (!TYPE_NVIRTUALS (class)) |
6147 | TYPE_METHODS (class) = nreverse (TYPE_METHODS (class)); | |
e04a16fb | 6148 | |
d77613be APB |
6149 | /* Search for inherited abstract method not yet implemented in this |
6150 | class. */ | |
6151 | java_check_abstract_method_definitions (class_decl); | |
6152 | ||
22eed1e6 | 6153 | if (!saw_constructor) |
e920ebc9 | 6154 | fatal ("No constructor found"); |
e04a16fb AG |
6155 | } |
6156 | ||
b9f7e36c APB |
6157 | /* Return a non zero value if the `throws' clause of METHOD (if any) |
6158 | is incompatible with the `throws' clause of FOUND (if any). */ | |
6159 | ||
6160 | static void | |
6161 | check_throws_clauses (method, method_wfl, found) | |
6162 | tree method, method_wfl, found; | |
6163 | { | |
6164 | tree mthrows, fthrows; | |
6165 | ||
c877974e APB |
6166 | /* Can't check these things with class loaded from bytecode. FIXME */ |
6167 | if (!CLASS_FROM_SOURCE_P (DECL_CONTEXT (found))) | |
6168 | return; | |
6169 | ||
b9f7e36c APB |
6170 | for (mthrows = DECL_FUNCTION_THROWS (method); |
6171 | mthrows; mthrows = TREE_CHAIN (mthrows)) | |
6172 | { | |
6173 | /* We don't verify unchecked expressions */ | |
c877974e | 6174 | if (IS_UNCHECKED_EXCEPTION_P (TREE_VALUE (mthrows))) |
b9f7e36c APB |
6175 | continue; |
6176 | /* Checked expression must be compatible */ | |
6177 | for (fthrows = DECL_FUNCTION_THROWS (found); | |
6178 | fthrows; fthrows = TREE_CHAIN (fthrows)) | |
6179 | if (inherits_from_p (TREE_VALUE (mthrows), TREE_VALUE (fthrows))) | |
6180 | break; | |
6181 | if (!fthrows) | |
6182 | { | |
6183 | parse_error_context | |
781b0558 | 6184 | (method_wfl, "Invalid checked exception class `%s' in `throws' clause. The exception must be a subclass of an exception thrown by `%s' from class `%s'", |
b9f7e36c | 6185 | IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (TREE_VALUE (mthrows)))), |
0a2138e2 | 6186 | lang_printable_name (found, 0), |
b9f7e36c APB |
6187 | IDENTIFIER_POINTER |
6188 | (DECL_NAME (TYPE_NAME (DECL_CONTEXT (found))))); | |
6189 | } | |
6190 | } | |
6191 | } | |
6192 | ||
e04a16fb AG |
6193 | /* Check abstract method of interface INTERFACE */ |
6194 | ||
6195 | static void | |
5e942c50 APB |
6196 | java_check_abstract_methods (interface_decl) |
6197 | tree interface_decl; | |
e04a16fb AG |
6198 | { |
6199 | int i, n; | |
6200 | tree method, basetype_vec, found; | |
5e942c50 | 6201 | tree interface = TREE_TYPE (interface_decl); |
e04a16fb AG |
6202 | |
6203 | for (method = TYPE_METHODS (interface); method; method = TREE_CHAIN (method)) | |
6204 | { | |
b9f7e36c | 6205 | tree method_wfl = DECL_NAME (method); |
e04a16fb AG |
6206 | |
6207 | /* 2- Check for double definition inside the defining interface */ | |
6208 | if (check_method_redefinition (interface, method)) | |
6209 | continue; | |
6210 | ||
6211 | /* 3- Overriding is OK as far as we preserve the return type and | |
b9f7e36c | 6212 | the thrown exceptions (FIXME) */ |
e04a16fb AG |
6213 | found = lookup_java_interface_method2 (interface, method); |
6214 | if (found) | |
6215 | { | |
5e942c50 APB |
6216 | char *t; |
6217 | tree saved_found_wfl = DECL_NAME (found); | |
6218 | reset_method_name (found); | |
c2e3db92 | 6219 | t = xstrdup (lang_printable_name (TREE_TYPE (TREE_TYPE (found)), 0)); |
e04a16fb | 6220 | parse_error_context |
b9f7e36c | 6221 | (method_wfl, |
5e942c50 | 6222 | "Method `%s' was defined with return type `%s' in class `%s'", |
0a2138e2 | 6223 | lang_printable_name (found, 0), t, |
b9f7e36c APB |
6224 | IDENTIFIER_POINTER |
6225 | (DECL_NAME (TYPE_NAME (DECL_CONTEXT (found))))); | |
6226 | free (t); | |
5e942c50 | 6227 | DECL_NAME (found) = saved_found_wfl; |
c63b98cd | 6228 | continue; |
e04a16fb AG |
6229 | } |
6230 | } | |
6231 | ||
6232 | /* 4- Inherited methods can't differ by their returned types */ | |
6233 | if (!(basetype_vec = TYPE_BINFO_BASETYPES (interface))) | |
6234 | return; | |
6235 | n = TREE_VEC_LENGTH (basetype_vec); | |
6236 | for (i = 0; i < n; i++) | |
6237 | { | |
6238 | tree sub_interface_method, sub_interface; | |
6239 | tree vec_elt = TREE_VEC_ELT (basetype_vec, i); | |
6240 | if (!vec_elt) | |
6241 | continue; | |
6242 | sub_interface = BINFO_TYPE (vec_elt); | |
6243 | for (sub_interface_method = TYPE_METHODS (sub_interface); | |
6244 | sub_interface_method; | |
6245 | sub_interface_method = TREE_CHAIN (sub_interface_method)) | |
6246 | { | |
6247 | found = lookup_java_interface_method2 (interface, | |
6248 | sub_interface_method); | |
6249 | if (found && (found != sub_interface_method)) | |
5e942c50 APB |
6250 | { |
6251 | tree saved_found_wfl = DECL_NAME (found); | |
6252 | reset_method_name (found); | |
6253 | parse_error_context | |
6254 | (lookup_cl (sub_interface_method), | |
781b0558 | 6255 | "Interface `%s' inherits method `%s' from interface `%s'. This method is redefined with a different return type in interface `%s'", |
5e942c50 APB |
6256 | IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (interface))), |
6257 | lang_printable_name (found, 0), | |
6258 | IDENTIFIER_POINTER | |
6259 | (DECL_NAME (TYPE_NAME | |
6260 | (DECL_CONTEXT (sub_interface_method)))), | |
6261 | IDENTIFIER_POINTER | |
6262 | (DECL_NAME (TYPE_NAME (DECL_CONTEXT (found))))); | |
6263 | DECL_NAME (found) = saved_found_wfl; | |
6264 | } | |
e04a16fb AG |
6265 | } |
6266 | } | |
6267 | } | |
6268 | ||
e04a16fb AG |
6269 | /* Lookup methods in interfaces using their name and partial |
6270 | signature. Return a matching method only if their types differ. */ | |
6271 | ||
6272 | static tree | |
6273 | lookup_java_interface_method2 (class, method_decl) | |
6274 | tree class, method_decl; | |
6275 | { | |
6276 | int i, n; | |
6277 | tree basetype_vec = TYPE_BINFO_BASETYPES (class), to_return; | |
6278 | ||
6279 | if (!basetype_vec) | |
6280 | return NULL_TREE; | |
6281 | ||
6282 | n = TREE_VEC_LENGTH (basetype_vec); | |
6283 | for (i = 0; i < n; i++) | |
6284 | { | |
6285 | tree vec_elt = TREE_VEC_ELT (basetype_vec, i), to_return; | |
6286 | if ((BINFO_TYPE (vec_elt) != object_type_node) | |
6287 | && (to_return = | |
6288 | lookup_java_method2 (BINFO_TYPE (vec_elt), method_decl, 1))) | |
6289 | return to_return; | |
6290 | } | |
6291 | for (i = 0; i < n; i++) | |
6292 | { | |
6293 | to_return = lookup_java_interface_method2 | |
6294 | (BINFO_TYPE (TREE_VEC_ELT (basetype_vec, i)), method_decl); | |
6295 | if (to_return) | |
6296 | return to_return; | |
6297 | } | |
6298 | ||
6299 | return NULL_TREE; | |
6300 | } | |
6301 | ||
6302 | /* Lookup method using their name and partial signature. Return a | |
6303 | matching method only if their types differ. */ | |
6304 | ||
6305 | static tree | |
6306 | lookup_java_method2 (clas, method_decl, do_interface) | |
6307 | tree clas, method_decl; | |
6308 | int do_interface; | |
6309 | { | |
5e942c50 APB |
6310 | tree method, method_signature, method_name, method_type, name; |
6311 | ||
e04a16fb | 6312 | method_signature = build_java_argument_signature (TREE_TYPE (method_decl)); |
5e942c50 APB |
6313 | name = DECL_NAME (method_decl); |
6314 | method_name = (TREE_CODE (name) == EXPR_WITH_FILE_LOCATION ? | |
6315 | EXPR_WFL_NODE (name) : name); | |
e04a16fb AG |
6316 | method_type = TREE_TYPE (TREE_TYPE (method_decl)); |
6317 | ||
6318 | while (clas != NULL_TREE) | |
6319 | { | |
6320 | for (method = TYPE_METHODS (clas); | |
6321 | method != NULL_TREE; method = TREE_CHAIN (method)) | |
6322 | { | |
6323 | tree method_sig = build_java_argument_signature (TREE_TYPE (method)); | |
5e942c50 APB |
6324 | tree name = DECL_NAME (method); |
6325 | if ((TREE_CODE (name) == EXPR_WITH_FILE_LOCATION ? | |
6326 | EXPR_WFL_NODE (name) : name) == method_name | |
e04a16fb AG |
6327 | && method_sig == method_signature |
6328 | && TREE_TYPE (TREE_TYPE (method)) != method_type) | |
5e942c50 | 6329 | return method; |
e04a16fb AG |
6330 | } |
6331 | clas = (do_interface ? NULL_TREE : CLASSTYPE_SUPER (clas)); | |
6332 | } | |
6333 | return NULL_TREE; | |
6334 | } | |
6335 | ||
f441f671 APB |
6336 | /* Return the line that matches DECL line number, and try its best to |
6337 | position the column number. Used during error reports. */ | |
e04a16fb AG |
6338 | |
6339 | static tree | |
6340 | lookup_cl (decl) | |
6341 | tree decl; | |
6342 | { | |
6343 | static tree cl = NULL_TREE; | |
f441f671 | 6344 | char *line, *found; |
e04a16fb AG |
6345 | |
6346 | if (!decl) | |
6347 | return NULL_TREE; | |
6348 | ||
6349 | if (cl == NULL_TREE) | |
6350 | cl = build_expr_wfl (NULL_TREE, NULL, 0, 0); | |
6351 | ||
6352 | EXPR_WFL_FILENAME_NODE (cl) = get_identifier (DECL_SOURCE_FILE (decl)); | |
6353 | EXPR_WFL_SET_LINECOL (cl, DECL_SOURCE_LINE_FIRST (decl), -1); | |
6354 | ||
f441f671 APB |
6355 | line = java_get_line_col (IDENTIFIER_POINTER (EXPR_WFL_FILENAME_NODE (cl)), |
6356 | EXPR_WFL_LINENO (cl), EXPR_WFL_COLNO (cl)); | |
6357 | ||
6358 | found = strstr ((const char *)line, | |
6359 | (const char *)IDENTIFIER_POINTER (DECL_NAME (decl))); | |
6360 | if (found) | |
6361 | EXPR_WFL_SET_LINECOL (cl, EXPR_WFL_LINENO (cl), found - line); | |
6362 | ||
e04a16fb AG |
6363 | return cl; |
6364 | } | |
6365 | ||
6366 | /* Look for a simple name in the single-type import list */ | |
6367 | ||
6368 | static tree | |
6369 | find_name_in_single_imports (name) | |
6370 | tree name; | |
6371 | { | |
6372 | tree node; | |
6373 | ||
6374 | for (node = ctxp->import_list; node; node = TREE_CHAIN (node)) | |
6375 | if (TREE_VALUE (node) == name) | |
6376 | return (EXPR_WFL_NODE (TREE_PURPOSE (node))); | |
6377 | ||
6378 | return NULL_TREE; | |
6379 | } | |
6380 | ||
6381 | /* Process all single-type import. */ | |
6382 | ||
6383 | static int | |
6384 | process_imports () | |
6385 | { | |
6386 | tree import; | |
6387 | int error_found; | |
6388 | ||
6389 | for (import = ctxp->import_list; import; import = TREE_CHAIN (import)) | |
6390 | { | |
6391 | tree to_be_found = EXPR_WFL_NODE (TREE_PURPOSE (import)); | |
6392 | ||
6393 | /* Don't load twice something already defined. */ | |
6394 | if (IDENTIFIER_CLASS_VALUE (to_be_found)) | |
6395 | continue; | |
6396 | QUALIFIED_P (to_be_found) = 1; | |
6397 | load_class (to_be_found, 0); | |
6398 | error_found = | |
6399 | check_pkg_class_access (to_be_found, TREE_PURPOSE (import)); | |
6400 | if (!IDENTIFIER_CLASS_VALUE (to_be_found)) | |
6401 | { | |
6402 | parse_error_context (TREE_PURPOSE (import), | |
6403 | "Class or interface `%s' not found in import", | |
6404 | IDENTIFIER_POINTER (to_be_found)); | |
6405 | return 1; | |
6406 | } | |
6407 | if (error_found) | |
6408 | return 1; | |
6409 | } | |
6410 | return 0; | |
6411 | } | |
6412 | ||
9a7ab4b3 APB |
6413 | /* Possibly find and mark a class imported by a single-type import |
6414 | statement. */ | |
e04a16fb | 6415 | |
9a7ab4b3 | 6416 | static void |
e04a16fb AG |
6417 | find_in_imports (class_type) |
6418 | tree class_type; | |
6419 | { | |
6420 | tree import; | |
6421 | ||
6422 | for (import = ctxp->import_list; import; import = TREE_CHAIN (import)) | |
6423 | if (TREE_VALUE (import) == TYPE_NAME (class_type)) | |
6424 | { | |
6425 | TYPE_NAME (class_type) = EXPR_WFL_NODE (TREE_PURPOSE (import)); | |
6426 | QUALIFIED_P (TYPE_NAME (class_type)) = 1; | |
e04a16fb | 6427 | } |
e04a16fb AG |
6428 | } |
6429 | ||
e04a16fb | 6430 | static int |
63a212ed | 6431 | note_possible_classname (name, len) |
49f48c71 | 6432 | const char *name; |
63a212ed | 6433 | int len; |
e04a16fb | 6434 | { |
63a212ed PB |
6435 | tree node; |
6436 | if (len > 5 && strncmp (&name [len-5], ".java", 5) == 0) | |
6437 | len = len - 5; | |
6438 | else if (len > 6 && strncmp (&name [len-6], ".class", 6) == 0) | |
6439 | len = len - 6; | |
e04a16fb | 6440 | else |
63a212ed PB |
6441 | return 0; |
6442 | node = ident_subst (name, len, "", '/', '.', ""); | |
6443 | IS_A_CLASSFILE_NAME (node) = 1; /* Or soon to be */ | |
fe0e4d76 | 6444 | QUALIFIED_P (node) = strchr (name, '/') ? 1 : 0; |
63a212ed | 6445 | return 1; |
e04a16fb AG |
6446 | } |
6447 | ||
6448 | /* Read a import directory, gathering potential match for further type | |
6449 | references. Indifferently reads a filesystem or a ZIP archive | |
6450 | directory. */ | |
6451 | ||
6452 | static void | |
6453 | read_import_dir (wfl) | |
6454 | tree wfl; | |
6455 | { | |
63a212ed | 6456 | tree package_id = EXPR_WFL_NODE (wfl); |
49f48c71 | 6457 | const char *package_name = IDENTIFIER_POINTER (package_id); |
63a212ed | 6458 | int package_length = IDENTIFIER_LENGTH (package_id); |
e04a16fb | 6459 | DIR *dirp = NULL; |
d8fccff5 | 6460 | JCF *saved_jcf = current_jcf; |
e04a16fb | 6461 | |
63a212ed PB |
6462 | int found = 0; |
6463 | int k; | |
6464 | void *entry; | |
6465 | struct buffer filename[1]; | |
6466 | ||
6467 | ||
6468 | if (IS_AN_IMPORT_ON_DEMAND_P (package_id)) | |
6469 | return; | |
6470 | IS_AN_IMPORT_ON_DEMAND_P (package_id) = 1; | |
6471 | ||
6472 | BUFFER_INIT (filename); | |
6473 | buffer_grow (filename, package_length + 100); | |
6474 | ||
6475 | for (entry = jcf_path_start (); entry != NULL; entry = jcf_path_next (entry)) | |
6476 | { | |
49f48c71 | 6477 | const char *entry_name = jcf_path_name (entry); |
63a212ed PB |
6478 | int entry_length = strlen (entry_name); |
6479 | if (jcf_path_is_zipfile (entry)) | |
6480 | { | |
6481 | ZipFile *zipf; | |
6482 | buffer_grow (filename, entry_length); | |
6483 | memcpy (filename->data, entry_name, entry_length - 1); | |
6484 | filename->data[entry_length-1] = '\0'; | |
6485 | zipf = opendir_in_zip (filename->data, jcf_path_is_system (entry)); | |
6486 | if (zipf == NULL) | |
6487 | error ("malformed .zip archive in CLASSPATH: %s", entry_name); | |
6488 | else | |
6489 | { | |
6490 | ZipDirectory *zipd = (ZipDirectory *) zipf->central_directory; | |
6491 | BUFFER_RESET (filename); | |
6492 | for (k = 0; k < package_length; k++) | |
6493 | { | |
6494 | char ch = package_name[k]; | |
6495 | *filename->ptr++ = ch == '.' ? '/' : ch; | |
6496 | } | |
6497 | *filename->ptr++ = '/'; | |
6498 | ||
345137c7 | 6499 | for (k = 0; k < zipf->count; k++, zipd = ZIPDIR_NEXT (zipd)) |
63a212ed | 6500 | { |
49f48c71 | 6501 | const char *current_entry = ZIPDIR_FILENAME (zipd); |
63a212ed PB |
6502 | int current_entry_len = zipd->filename_length; |
6503 | ||
345137c7 TT |
6504 | if (current_entry_len >= BUFFER_LENGTH (filename) |
6505 | && strncmp (filename->data, current_entry, | |
6506 | BUFFER_LENGTH (filename)) != 0) | |
63a212ed | 6507 | continue; |
345137c7 | 6508 | found |= note_possible_classname (current_entry, |
63a212ed PB |
6509 | current_entry_len); |
6510 | } | |
6511 | } | |
6512 | } | |
6513 | else | |
6514 | { | |
6515 | BUFFER_RESET (filename); | |
6516 | buffer_grow (filename, entry_length + package_length + 4); | |
6517 | strcpy (filename->data, entry_name); | |
6518 | filename->ptr = filename->data + entry_length; | |
6519 | for (k = 0; k < package_length; k++) | |
6520 | { | |
6521 | char ch = package_name[k]; | |
6522 | *filename->ptr++ = ch == '.' ? '/' : ch; | |
6523 | } | |
6524 | *filename->ptr = '\0'; | |
6525 | ||
6526 | dirp = opendir (filename->data); | |
6527 | if (dirp == NULL) | |
6528 | continue; | |
6529 | *filename->ptr++ = '/'; | |
6530 | for (;;) | |
6531 | { | |
63a212ed | 6532 | int len; |
49f48c71 | 6533 | const char *d_name; |
63a212ed PB |
6534 | struct dirent *direntp = readdir (dirp); |
6535 | if (!direntp) | |
6536 | break; | |
6537 | d_name = direntp->d_name; | |
6538 | len = strlen (direntp->d_name); | |
6539 | buffer_grow (filename, len+1); | |
6540 | strcpy (filename->ptr, d_name); | |
345137c7 | 6541 | found |= note_possible_classname (filename->data + entry_length, |
63a212ed PB |
6542 | package_length+len+1); |
6543 | } | |
6544 | if (dirp) | |
6545 | closedir (dirp); | |
6546 | } | |
6547 | } | |
e04a16fb | 6548 | |
63a212ed | 6549 | free (filename->data); |
e04a16fb | 6550 | |
63a212ed PB |
6551 | /* Here we should have a unified way of retrieving an entry, to be |
6552 | indexed. */ | |
6553 | if (!found) | |
e04a16fb AG |
6554 | { |
6555 | static int first = 1; | |
6556 | if (first) | |
6557 | { | |
781b0558 | 6558 | error ("Can't find default package `%s'. Check the CLASSPATH environment variable and the access to the archives.", package_name); |
e04a16fb AG |
6559 | java_error_count++; |
6560 | first = 0; | |
6561 | } | |
6562 | else | |
63a212ed PB |
6563 | parse_error_context (wfl, "Package `%s' not found in import", |
6564 | package_name); | |
e04a16fb AG |
6565 | current_jcf = saved_jcf; |
6566 | return; | |
6567 | } | |
e04a16fb AG |
6568 | current_jcf = saved_jcf; |
6569 | } | |
6570 | ||
6571 | /* Possibly find a type in the import on demands specified | |
6572 | types. Returns 1 if an error occured, 0 otherwise. Run throught the | |
6573 | entire list, to detected potential double definitions. */ | |
6574 | ||
6575 | static int | |
6576 | find_in_imports_on_demand (class_type) | |
6577 | tree class_type; | |
6578 | { | |
ab3a6dd6 | 6579 | tree node, import, node_to_use = NULL_TREE; |
e04a16fb | 6580 | int seen_once = -1; |
ab3a6dd6 | 6581 | tree cl = NULL_TREE; |
e04a16fb AG |
6582 | |
6583 | for (import = ctxp->import_demand_list; import; import = TREE_CHAIN (import)) | |
6584 | { | |
49f48c71 | 6585 | const char *id_name; |
e04a16fb AG |
6586 | obstack_grow (&temporary_obstack, |
6587 | IDENTIFIER_POINTER (EXPR_WFL_NODE (TREE_PURPOSE (import))), | |
6588 | IDENTIFIER_LENGTH (EXPR_WFL_NODE (TREE_PURPOSE (import)))); | |
63a212ed | 6589 | obstack_1grow (&temporary_obstack, '.'); |
e04a16fb AG |
6590 | obstack_grow0 (&temporary_obstack, |
6591 | IDENTIFIER_POINTER (TYPE_NAME (class_type)), | |
6592 | IDENTIFIER_LENGTH (TYPE_NAME (class_type))); | |
6593 | id_name = obstack_finish (&temporary_obstack); | |
6594 | ||
6595 | node = maybe_get_identifier (id_name); | |
6596 | if (node && IS_A_CLASSFILE_NAME (node)) | |
6597 | { | |
6598 | if (seen_once < 0) | |
6599 | { | |
6600 | cl = TREE_PURPOSE (import); | |
6601 | seen_once = 1; | |
6602 | node_to_use = node; | |
6603 | } | |
6604 | else | |
6605 | { | |
6606 | seen_once++; | |
6607 | parse_error_context | |
6608 | (import, "Type `%s' also potentially defined in package `%s'", | |
6609 | IDENTIFIER_POINTER (TYPE_NAME (class_type)), | |
6610 | IDENTIFIER_POINTER (EXPR_WFL_NODE (TREE_PURPOSE (import)))); | |
6611 | } | |
6612 | } | |
6613 | } | |
6614 | ||
6615 | if (seen_once == 1) | |
6616 | { | |
6617 | /* Setup lineno so that it refers to the line of the import (in | |
6618 | case we parse a class file and encounter errors */ | |
6619 | tree decl; | |
6620 | int saved_lineno = lineno; | |
6621 | lineno = EXPR_WFL_LINENO (cl); | |
63a212ed | 6622 | TYPE_NAME (class_type) = node_to_use; |
e04a16fb AG |
6623 | QUALIFIED_P (TYPE_NAME (class_type)) = 1; |
6624 | decl = IDENTIFIER_CLASS_VALUE (TYPE_NAME (class_type)); | |
6625 | /* If there is no DECL set for the class or if the class isn't | |
6626 | loaded and not seen in source yet, the load */ | |
6627 | if (!decl || (!CLASS_LOADED_P (TREE_TYPE (decl)) | |
6628 | && !CLASS_FROM_SOURCE_P (TREE_TYPE (decl)))) | |
6629 | load_class (node_to_use, 0); | |
6630 | lineno = saved_lineno; | |
6631 | return check_pkg_class_access (TYPE_NAME (class_type), cl); | |
6632 | } | |
6633 | else | |
6634 | return (seen_once < 0 ? 0 : seen_once); /* It's ok not to have found */ | |
6635 | } | |
6636 | ||
9a7ab4b3 APB |
6637 | /* Add package NAME to the list of package encountered so far. To |
6638 | speed up class lookup in do_resolve_class, we make sure a | |
6639 | particular package is added only once. */ | |
6640 | ||
6641 | static void | |
6642 | register_package (name) | |
6643 | tree name; | |
6644 | { | |
6645 | static struct hash_table _pht, *pht = NULL; | |
6646 | ||
6647 | if (!pht) | |
6648 | { | |
6649 | hash_table_init (&_pht, hash_newfunc, | |
6650 | java_hash_hash_tree_node, java_hash_compare_tree_node); | |
6651 | pht = &_pht; | |
6652 | } | |
6653 | ||
6654 | if (!hash_lookup (pht, (const hash_table_key) name, FALSE, NULL)) | |
6655 | { | |
6656 | package_list = chainon (package_list, build_tree_list (name, NULL)); | |
6657 | hash_lookup (pht, (const hash_table_key) name, TRUE, NULL); | |
6658 | } | |
6659 | } | |
6660 | ||
5e942c50 APB |
6661 | static tree |
6662 | resolve_package (pkg, next) | |
6663 | tree pkg, *next; | |
6664 | { | |
c2952b01 | 6665 | tree current, acc; |
5e942c50 | 6666 | tree type_name = NULL_TREE; |
49f48c71 | 6667 | const char *name = IDENTIFIER_POINTER (EXPR_WFL_NODE (pkg)); |
5e942c50 APB |
6668 | |
6669 | /* The trick is to determine when the package name stops and were | |
6670 | the name of something contained in the package starts. Then we | |
6671 | return a fully qualified name of what we want to get. */ | |
6672 | ||
6673 | /* Do a quick search on well known package names */ | |
6674 | if (!strncmp (name, "java.lang.reflect", 17)) | |
6675 | { | |
6676 | *next = | |
6677 | TREE_CHAIN (TREE_CHAIN (TREE_CHAIN (EXPR_WFL_QUALIFICATION (pkg)))); | |
6678 | type_name = lookup_package_type (name, 17); | |
6679 | } | |
6680 | else if (!strncmp (name, "java.lang", 9)) | |
6681 | { | |
6682 | *next = TREE_CHAIN (TREE_CHAIN (EXPR_WFL_QUALIFICATION (pkg))); | |
6683 | type_name = lookup_package_type (name, 9); | |
6684 | } | |
5e942c50 | 6685 | |
2c56429a APB |
6686 | /* If we found something here, return */ |
6687 | if (type_name) | |
6688 | return type_name; | |
6689 | ||
6690 | *next = EXPR_WFL_QUALIFICATION (pkg); | |
6691 | ||
6692 | /* Try the current package. */ | |
6693 | if (ctxp->package && !strncmp (name, IDENTIFIER_POINTER (ctxp->package), | |
6694 | IDENTIFIER_LENGTH (ctxp->package))) | |
6695 | { | |
6696 | type_name = | |
6697 | lookup_package_type_and_set_next (name, | |
6698 | IDENTIFIER_LENGTH (ctxp->package), | |
6699 | next ); | |
6700 | if (type_name) | |
6701 | return type_name; | |
6702 | } | |
6703 | ||
6704 | /* Search in imported package */ | |
6705 | for (current = ctxp->import_list; current; current = TREE_CHAIN (current)) | |
6706 | { | |
6707 | tree current_pkg_name = EXPR_WFL_NODE (TREE_PURPOSE (current)); | |
6708 | int len = IDENTIFIER_LENGTH (current_pkg_name); | |
6709 | if (!strncmp (name, IDENTIFIER_POINTER (current_pkg_name), len)) | |
6710 | { | |
6711 | tree left, dummy; | |
6712 | ||
6713 | breakdown_qualified (&left, &dummy, current_pkg_name); | |
6714 | len = IDENTIFIER_LENGTH (left); | |
6715 | type_name = lookup_package_type_and_set_next (name, len, next); | |
6716 | if (type_name) | |
6717 | break; | |
6718 | } | |
6719 | } | |
6720 | ||
c2952b01 APB |
6721 | /* Try to progressively construct a type name */ |
6722 | if (TREE_CODE (pkg) == EXPR_WITH_FILE_LOCATION) | |
6723 | for (acc = NULL_TREE, current = EXPR_WFL_QUALIFICATION (pkg); | |
6724 | current; current = TREE_CHAIN (current)) | |
6725 | { | |
6726 | acc = merge_qualified_name (acc, EXPR_WFL_NODE (QUAL_WFL (current))); | |
6727 | if ((type_name = resolve_no_layout (acc, NULL_TREE))) | |
6728 | { | |
6729 | type_name = acc; | |
6b48deee APB |
6730 | /* resolve_package should be used in a loop, hence we |
6731 | point at this one to naturally process the next one at | |
6732 | the next iteration. */ | |
6733 | *next = current; | |
c2952b01 APB |
6734 | break; |
6735 | } | |
6736 | } | |
2c56429a APB |
6737 | return type_name; |
6738 | } | |
6739 | ||
6740 | static tree | |
6741 | lookup_package_type_and_set_next (name, len, next) | |
49f48c71 | 6742 | const char *name; |
2c56429a APB |
6743 | int len; |
6744 | tree *next; | |
6745 | { | |
49f48c71 | 6746 | const char *ptr; |
2c56429a APB |
6747 | tree type_name = lookup_package_type (name, len); |
6748 | ||
6749 | if (!type_name) | |
6750 | return NULL; | |
6751 | ||
6752 | ptr = IDENTIFIER_POINTER (type_name); | |
6753 | while (ptr && (ptr = strchr (ptr, '.'))) | |
6754 | { | |
6755 | *next = TREE_CHAIN (*next); | |
6756 | ptr++; | |
6757 | } | |
5e942c50 APB |
6758 | return type_name; |
6759 | } | |
6760 | ||
6761 | static tree | |
6762 | lookup_package_type (name, from) | |
49f48c71 | 6763 | const char *name; |
5e942c50 APB |
6764 | int from; |
6765 | { | |
6766 | char subname [128]; | |
49f48c71 | 6767 | const char *sub = &name[from+1]; |
5e942c50 APB |
6768 | while (*sub != '.' && *sub) |
6769 | sub++; | |
6770 | strncpy (subname, name, sub-name); | |
6771 | subname [sub-name] = '\0'; | |
6772 | return get_identifier (subname); | |
6773 | } | |
6774 | ||
e04a16fb AG |
6775 | /* Check that CLASS_NAME refers to a PUBLIC class. Return 0 if no |
6776 | access violations were found, 1 otherwise. */ | |
6777 | ||
6778 | static int | |
6779 | check_pkg_class_access (class_name, cl) | |
6780 | tree class_name; | |
6781 | tree cl; | |
6782 | { | |
6783 | tree type; | |
e04a16fb AG |
6784 | |
6785 | if (!QUALIFIED_P (class_name) || !IDENTIFIER_CLASS_VALUE (class_name)) | |
6786 | return 0; | |
6787 | ||
6788 | if (!(type = TREE_TYPE (IDENTIFIER_CLASS_VALUE (class_name)))) | |
6789 | return 0; | |
6790 | ||
6791 | if (!CLASS_PUBLIC (TYPE_NAME (type))) | |
6792 | { | |
e28cd97b APB |
6793 | /* Access to a private class within the same package is |
6794 | allowed. */ | |
6795 | tree l, r; | |
6796 | breakdown_qualified (&l, &r, class_name); | |
6797 | if (l == ctxp->package) | |
6798 | return 0; | |
6799 | ||
e04a16fb | 6800 | parse_error_context |
781b0558 | 6801 | (cl, "Can't access %s `%s'. Only public classes and interfaces in other packages can be accessed", |
e04a16fb AG |
6802 | (CLASS_INTERFACE (TYPE_NAME (type)) ? "interface" : "class"), |
6803 | IDENTIFIER_POINTER (class_name)); | |
6804 | return 1; | |
6805 | } | |
6806 | return 0; | |
6807 | } | |
6808 | ||
6809 | /* Local variable declaration. */ | |
6810 | ||
6811 | static void | |
6812 | declare_local_variables (modifier, type, vlist) | |
6813 | int modifier; | |
6814 | tree type; | |
6815 | tree vlist; | |
6816 | { | |
c583dd46 APB |
6817 | tree decl, current, saved_type; |
6818 | tree type_wfl = NULL_TREE; | |
e04a16fb | 6819 | int must_chain = 0; |
c2952b01 | 6820 | int final_p = 0; |
e04a16fb | 6821 | |
2aa11e97 | 6822 | /* Push a new block if statements were seen between the last time we |
e04a16fb | 6823 | pushed a block and now. Keep a cound of block to close */ |
f099f336 | 6824 | if (BLOCK_EXPR_BODY (GET_CURRENT_BLOCK (current_function_decl))) |
e04a16fb | 6825 | { |
f099f336 | 6826 | tree body = GET_CURRENT_BLOCK (current_function_decl); |
e04a16fb | 6827 | tree b = enter_block (); |
f099f336 | 6828 | BLOCK_EXPR_ORIGIN (b) = body; |
e04a16fb AG |
6829 | } |
6830 | ||
6831 | if (modifier) | |
6832 | { | |
6833 | int i; | |
6834 | for (i = 0; i <= 10; i++) if (1 << i & modifier) break; | |
c877974e | 6835 | if (modifier == ACC_FINAL) |
c2952b01 | 6836 | final_p = 1; |
c877974e APB |
6837 | else |
6838 | { | |
6839 | parse_error_context | |
6840 | (ctxp->modifier_ctx [i], | |
6841 | "Only `final' is allowed as a local variables modifier"); | |
6842 | return; | |
6843 | } | |
e04a16fb AG |
6844 | } |
6845 | ||
c583dd46 APB |
6846 | /* Obtain an incomplete type if TYPE is not complete. TYPE_WFL will |
6847 | hold the TYPE value if a new incomplete has to be created (as | |
6848 | opposed to being found already existing and reused). */ | |
6849 | SET_TYPE_FOR_RESOLUTION (type, type_wfl, must_chain); | |
6850 | ||
6851 | /* If TYPE is fully resolved and we don't have a reference, make one */ | |
1886c9d8 | 6852 | PROMOTE_RECORD_IF_COMPLETE (type, must_chain); |
c583dd46 APB |
6853 | |
6854 | /* Go through all the declared variables */ | |
6855 | for (current = vlist, saved_type = type; current; | |
6856 | current = TREE_CHAIN (current), type = saved_type) | |
e04a16fb | 6857 | { |
c877974e | 6858 | tree other, real_type; |
e04a16fb AG |
6859 | tree wfl = TREE_PURPOSE (current); |
6860 | tree name = EXPR_WFL_NODE (wfl); | |
6861 | tree init = TREE_VALUE (current); | |
e04a16fb | 6862 | |
c583dd46 APB |
6863 | /* Process NAME, as it may specify extra dimension(s) for it */ |
6864 | type = build_array_from_name (type, type_wfl, name, &name); | |
6865 | ||
6866 | /* Variable redefinition check */ | |
6867 | if ((other = lookup_name_in_blocks (name))) | |
6868 | { | |
6869 | variable_redefinition_error (wfl, name, TREE_TYPE (other), | |
6870 | DECL_SOURCE_LINE (other)); | |
6871 | continue; | |
6872 | } | |
6873 | ||
6874 | /* Type adjustment. We may have just readjusted TYPE because | |
6875 | the variable specified more dimensions. Make sure we have | |
6876 | a reference if we can and don't have one already. */ | |
1886c9d8 | 6877 | PROMOTE_RECORD_IF_COMPLETE (type, must_chain); |
c877974e APB |
6878 | |
6879 | real_type = GET_REAL_TYPE (type); | |
c583dd46 APB |
6880 | /* Never layout this decl. This will be done when its scope |
6881 | will be entered */ | |
c877974e | 6882 | decl = build_decl (VAR_DECL, name, real_type); |
c2952b01 | 6883 | LOCAL_FINAL (decl) = final_p; |
c583dd46 APB |
6884 | BLOCK_CHAIN_DECL (decl); |
6885 | ||
d4370213 APB |
6886 | /* If doing xreferencing, replace the line number with the WFL |
6887 | compound value */ | |
6888 | if (flag_emit_xref) | |
6889 | DECL_SOURCE_LINE (decl) = EXPR_WFL_LINECOL (wfl); | |
6890 | ||
e04a16fb AG |
6891 | /* Don't try to use an INIT statement when an error was found */ |
6892 | if (init && java_error_count) | |
6893 | init = NULL_TREE; | |
c583dd46 APB |
6894 | |
6895 | /* Add the initialization function to the current function's code */ | |
6896 | if (init) | |
e04a16fb | 6897 | { |
c583dd46 APB |
6898 | /* Name might have been readjusted */ |
6899 | EXPR_WFL_NODE (TREE_OPERAND (init, 0)) = name; | |
6900 | MODIFY_EXPR_FROM_INITIALIZATION_P (init) = 1; | |
6901 | java_method_add_stmt (current_function_decl, | |
6902 | build_debugable_stmt (EXPR_WFL_LINECOL (init), | |
6903 | init)); | |
6904 | } | |
6905 | ||
6906 | /* Setup dependency the type of the decl */ | |
6907 | if (must_chain) | |
6908 | { | |
6909 | jdep *dep; | |
6910 | register_incomplete_type (JDEP_VARIABLE, type_wfl, decl, type); | |
6911 | dep = CLASSD_LAST (ctxp->classd_list); | |
6912 | JDEP_GET_PATCH (dep) = &TREE_TYPE (decl); | |
e04a16fb AG |
6913 | } |
6914 | } | |
6915 | SOURCE_FRONTEND_DEBUG (("Defined locals")); | |
6916 | } | |
6917 | ||
6918 | /* Called during parsing. Build decls from argument list. */ | |
6919 | ||
6920 | static void | |
6921 | source_start_java_method (fndecl) | |
6922 | tree fndecl; | |
6923 | { | |
6924 | tree tem; | |
6925 | tree parm_decl; | |
6926 | int i; | |
6927 | ||
79d13333 APB |
6928 | if (!fndecl) |
6929 | return; | |
6930 | ||
e04a16fb AG |
6931 | current_function_decl = fndecl; |
6932 | ||
6933 | /* New scope for the function */ | |
6934 | enter_block (); | |
6935 | for (tem = TYPE_ARG_TYPES (TREE_TYPE (fndecl)), i = 0; | |
de4c7b02 | 6936 | tem != end_params_node; tem = TREE_CHAIN (tem), i++) |
e04a16fb AG |
6937 | { |
6938 | tree type = TREE_VALUE (tem); | |
6939 | tree name = TREE_PURPOSE (tem); | |
6940 | ||
23a79c61 APB |
6941 | /* If type is incomplete. Create an incomplete decl and ask for |
6942 | the decl to be patched later */ | |
e04a16fb AG |
6943 | if (INCOMPLETE_TYPE_P (type)) |
6944 | { | |
6945 | jdep *jdep; | |
c877974e APB |
6946 | tree real_type = GET_REAL_TYPE (type); |
6947 | parm_decl = build_decl (PARM_DECL, name, real_type); | |
23a79c61 | 6948 | type = obtain_incomplete_type (type); |
e04a16fb AG |
6949 | register_incomplete_type (JDEP_PARM, NULL_TREE, NULL_TREE, type); |
6950 | jdep = CLASSD_LAST (ctxp->classd_list); | |
6951 | JDEP_MISC (jdep) = name; | |
6952 | JDEP_GET_PATCH (jdep) = &TREE_TYPE (parm_decl); | |
6953 | } | |
6954 | else | |
6955 | parm_decl = build_decl (PARM_DECL, name, type); | |
6956 | ||
c2952b01 APB |
6957 | /* Remember if a local variable was declared final (via its |
6958 | TREE_LIST of type/name.) Set LOCAL_FINAL accordingly. */ | |
6959 | if (ARG_FINAL_P (tem)) | |
6960 | LOCAL_FINAL (parm_decl) = 1; | |
6961 | ||
e04a16fb AG |
6962 | BLOCK_CHAIN_DECL (parm_decl); |
6963 | } | |
6964 | tem = BLOCK_EXPR_DECLS (DECL_FUNCTION_BODY (current_function_decl)); | |
6965 | BLOCK_EXPR_DECLS (DECL_FUNCTION_BODY (current_function_decl)) = | |
6966 | nreverse (tem); | |
6967 | DECL_ARG_SLOT_COUNT (current_function_decl) = i; | |
c2952b01 | 6968 | DECL_MAX_LOCALS (current_function_decl) = i; |
e04a16fb AG |
6969 | } |
6970 | ||
22eed1e6 APB |
6971 | /* Called during parsing. Creates an artificial method declaration. */ |
6972 | ||
6973 | static tree | |
6974 | create_artificial_method (class, flags, type, name, args) | |
6975 | tree class; | |
6976 | int flags; | |
6977 | tree type, name, args; | |
6978 | { | |
22eed1e6 APB |
6979 | tree mdecl; |
6980 | ||
c2952b01 | 6981 | java_parser_context_save_global (); |
22eed1e6 APB |
6982 | lineno = 0; |
6983 | mdecl = make_node (FUNCTION_TYPE); | |
6984 | TREE_TYPE (mdecl) = type; | |
6985 | TYPE_ARG_TYPES (mdecl) = args; | |
6986 | mdecl = add_method (class, flags, name, build_java_signature (mdecl)); | |
c2952b01 | 6987 | java_parser_context_restore_global (); |
22eed1e6 APB |
6988 | DECL_ARTIFICIAL (mdecl) = 1; |
6989 | return mdecl; | |
6990 | } | |
6991 | ||
6992 | /* Starts the body if an artifical method. */ | |
6993 | ||
6994 | static void | |
6995 | start_artificial_method_body (mdecl) | |
6996 | tree mdecl; | |
6997 | { | |
6998 | DECL_SOURCE_LINE (mdecl) = 1; | |
6999 | DECL_SOURCE_LINE_MERGE (mdecl, 1); | |
7000 | source_start_java_method (mdecl); | |
7001 | enter_block (); | |
7002 | } | |
7003 | ||
7004 | static void | |
7005 | end_artificial_method_body (mdecl) | |
7006 | tree mdecl; | |
7007 | { | |
7008 | BLOCK_EXPR_BODY (DECL_FUNCTION_BODY (mdecl)) = exit_block (); | |
7009 | exit_block (); | |
7010 | } | |
7011 | ||
e04a16fb AG |
7012 | /* Called during expansion. Push decls formerly built from argument |
7013 | list so they're usable during expansion. */ | |
7014 | ||
7015 | static void | |
7016 | expand_start_java_method (fndecl) | |
7017 | tree fndecl; | |
7018 | { | |
7019 | tree tem, *ptr; | |
e04a16fb | 7020 | |
e04a16fb AG |
7021 | current_function_decl = fndecl; |
7022 | ||
c2952b01 APB |
7023 | if (! quiet_flag) |
7024 | fprintf (stderr, " [%s.", lang_printable_name (DECL_CONTEXT (fndecl), 0)); | |
e04a16fb | 7025 | announce_function (fndecl); |
c2952b01 APB |
7026 | if (! quiet_flag) |
7027 | fprintf (stderr, "]"); | |
7028 | ||
7029 | pushlevel (1); /* Prepare for a parameter push */ | |
e04a16fb AG |
7030 | ptr = &DECL_ARGUMENTS (fndecl); |
7031 | tem = BLOCK_EXPR_DECLS (DECL_FUNCTION_BODY (current_function_decl)); | |
7032 | while (tem) | |
7033 | { | |
7034 | tree next = TREE_CHAIN (tem); | |
b67d701b | 7035 | tree type = TREE_TYPE (tem); |
e438e1b7 JJ |
7036 | if (PROMOTE_PROTOTYPES |
7037 | && TYPE_PRECISION (type) < TYPE_PRECISION (integer_type_node) | |
b67d701b PB |
7038 | && INTEGRAL_TYPE_P (type)) |
7039 | type = integer_type_node; | |
b67d701b | 7040 | DECL_ARG_TYPE (tem) = type; |
e04a16fb AG |
7041 | layout_decl (tem, 0); |
7042 | pushdecl (tem); | |
e04a16fb AG |
7043 | *ptr = tem; |
7044 | ptr = &TREE_CHAIN (tem); | |
7045 | tem = next; | |
7046 | } | |
7047 | *ptr = NULL_TREE; | |
7048 | pushdecl_force_head (DECL_ARGUMENTS (fndecl)); | |
7049 | lineno = DECL_SOURCE_LINE_FIRST (fndecl); | |
e04a16fb AG |
7050 | } |
7051 | ||
7052 | /* Terminate a function and expand its body. */ | |
7053 | ||
7054 | static void | |
7055 | source_end_java_method () | |
7056 | { | |
7057 | tree fndecl = current_function_decl; | |
138657ec | 7058 | int flag_asynchronous_exceptions = asynchronous_exceptions; |
e04a16fb | 7059 | |
79d13333 APB |
7060 | if (!fndecl) |
7061 | return; | |
7062 | ||
e04a16fb AG |
7063 | java_parser_context_save_global (); |
7064 | lineno = ctxp->last_ccb_indent1; | |
7065 | ||
b67d701b PB |
7066 | /* Set EH language codes */ |
7067 | java_set_exception_lang_code (); | |
7068 | ||
5423609c APB |
7069 | /* Turn function bodies with only a NOP expr null, so they don't get |
7070 | generated at all and we won't get warnings when using the -W | |
7071 | -Wall flags. */ | |
7072 | if (BLOCK_EXPR_BODY (DECL_FUNCTION_BODY (fndecl)) == empty_stmt_node) | |
7073 | BLOCK_EXPR_BODY (DECL_FUNCTION_BODY (fndecl)) = NULL_TREE; | |
7074 | ||
e04a16fb AG |
7075 | /* Generate function's code */ |
7076 | if (BLOCK_EXPR_BODY (DECL_FUNCTION_BODY (fndecl)) | |
e8fc7396 APB |
7077 | && ! flag_emit_class_files |
7078 | && ! flag_emit_xref) | |
e04a16fb AG |
7079 | expand_expr_stmt (BLOCK_EXPR_BODY (DECL_FUNCTION_BODY (fndecl))); |
7080 | ||
7081 | /* pop out of its parameters */ | |
7082 | pushdecl_force_head (DECL_ARGUMENTS (fndecl)); | |
7083 | poplevel (1, 0, 1); | |
7084 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
7085 | ||
7086 | /* Generate rtl for function exit. */ | |
e8fc7396 | 7087 | if (! flag_emit_class_files && ! flag_emit_xref) |
e04a16fb AG |
7088 | { |
7089 | lineno = DECL_SOURCE_LINE_LAST (fndecl); | |
b67d701b PB |
7090 | /* Emit catch-finally clauses */ |
7091 | emit_handlers (); | |
e04a16fb AG |
7092 | expand_function_end (input_filename, lineno, 0); |
7093 | ||
138657ec AH |
7094 | /* FIXME: If the current method contains any exception handlers, |
7095 | force asynchronous_exceptions: this is necessary because signal | |
7096 | handlers in libjava may throw exceptions. This is far from being | |
7097 | a perfect solution, but it's better than doing nothing at all.*/ | |
7098 | if (catch_clauses) | |
7099 | asynchronous_exceptions = 1; | |
7100 | ||
e04a16fb AG |
7101 | /* Run the optimizers and output assembler code for this function. */ |
7102 | rest_of_compilation (fndecl); | |
7103 | } | |
7104 | ||
7105 | current_function_decl = NULL_TREE; | |
8226320b | 7106 | permanent_allocation (1); |
e04a16fb | 7107 | java_parser_context_restore_global (); |
138657ec | 7108 | asynchronous_exceptions = flag_asynchronous_exceptions; |
e04a16fb AG |
7109 | } |
7110 | ||
7111 | /* Record EXPR in the current function block. Complements compound | |
7112 | expression second operand if necessary. */ | |
7113 | ||
7114 | tree | |
7115 | java_method_add_stmt (fndecl, expr) | |
7116 | tree fndecl, expr; | |
7117 | { | |
b771925e APB |
7118 | if (!GET_CURRENT_BLOCK (fndecl)) |
7119 | return NULL_TREE; | |
f099f336 | 7120 | return add_stmt_to_block (GET_CURRENT_BLOCK (fndecl), NULL_TREE, expr); |
b67d701b | 7121 | } |
e04a16fb | 7122 | |
b67d701b PB |
7123 | static tree |
7124 | add_stmt_to_block (b, type, stmt) | |
7125 | tree b, type, stmt; | |
7126 | { | |
7127 | tree body = BLOCK_EXPR_BODY (b), c; | |
7128 | ||
e04a16fb AG |
7129 | if (java_error_count) |
7130 | return body; | |
b67d701b PB |
7131 | |
7132 | if ((c = add_stmt_to_compound (body, type, stmt)) == body) | |
e04a16fb AG |
7133 | return body; |
7134 | ||
b67d701b PB |
7135 | BLOCK_EXPR_BODY (b) = c; |
7136 | TREE_SIDE_EFFECTS (c) = 1; | |
7137 | return c; | |
e04a16fb AG |
7138 | } |
7139 | ||
7140 | /* Add STMT to EXISTING if possible, otherwise create a new | |
7141 | COMPOUND_EXPR and add STMT to it. */ | |
7142 | ||
7143 | static tree | |
7144 | add_stmt_to_compound (existing, type, stmt) | |
7145 | tree existing, type, stmt; | |
7146 | { | |
15fdcfe9 PB |
7147 | if (existing) |
7148 | return build (COMPOUND_EXPR, type, existing, stmt); | |
e04a16fb | 7149 | else |
15fdcfe9 | 7150 | return stmt; |
e04a16fb AG |
7151 | } |
7152 | ||
7153 | /* Hold THIS for the scope of the current public method decl. */ | |
7154 | static tree current_this; | |
7155 | ||
1886c9d8 APB |
7156 | void java_layout_seen_class_methods () |
7157 | { | |
7158 | tree previous_list = all_class_list; | |
7159 | tree end = NULL_TREE; | |
7160 | tree current; | |
7161 | ||
7162 | while (1) | |
7163 | { | |
7164 | for (current = previous_list; | |
7165 | current != end; current = TREE_CHAIN (current)) | |
7166 | layout_class_methods (TREE_TYPE (TREE_VALUE (current))); | |
7167 | ||
7168 | if (previous_list != all_class_list) | |
7169 | { | |
7170 | end = previous_list; | |
7171 | previous_list = all_class_list; | |
7172 | } | |
7173 | else | |
7174 | break; | |
7175 | } | |
7176 | } | |
7177 | ||
e04a16fb | 7178 | void |
c2952b01 | 7179 | java_reorder_fields () |
e04a16fb | 7180 | { |
c2952b01 | 7181 | static tree stop_reordering = NULL_TREE; |
23a79c61 | 7182 | |
c2952b01 | 7183 | tree current; |
5e942c50 | 7184 | for (current = ctxp->gclass_list; current; current = TREE_CHAIN (current)) |
e04a16fb | 7185 | { |
5e942c50 | 7186 | current_class = TREE_TYPE (TREE_VALUE (current)); |
22eed1e6 | 7187 | |
c2952b01 APB |
7188 | if (current_class == stop_reordering) |
7189 | break; | |
7190 | ||
c877974e APB |
7191 | /* Reverse the fields, but leave the dummy field in front. |
7192 | Fields are already ordered for Object and Class */ | |
7193 | if (TYPE_FIELDS (current_class) && current_class != object_type_node | |
7194 | && current_class != class_type_node) | |
7195 | { | |
23a79c61 APB |
7196 | /* If the dummy field is there, reverse the right fields and |
7197 | just layout the type for proper fields offset */ | |
c877974e APB |
7198 | if (!DECL_NAME (TYPE_FIELDS (current_class))) |
7199 | { | |
7200 | tree fields = TYPE_FIELDS (current_class); | |
7201 | TREE_CHAIN (fields) = nreverse (TREE_CHAIN (fields)); | |
7202 | TYPE_SIZE (current_class) = NULL_TREE; | |
c877974e | 7203 | } |
23a79c61 APB |
7204 | /* We don't have a dummy field, we need to layout the class, |
7205 | after having reversed the fields */ | |
c877974e APB |
7206 | else |
7207 | { | |
7208 | TYPE_FIELDS (current_class) = | |
7209 | nreverse (TYPE_FIELDS (current_class)); | |
7210 | TYPE_SIZE (current_class) = NULL_TREE; | |
c877974e APB |
7211 | } |
7212 | } | |
c2952b01 APB |
7213 | } |
7214 | stop_reordering = TREE_TYPE (TREE_VALUE (ctxp->gclass_list)); | |
7215 | } | |
7216 | ||
7217 | /* Layout the methods of all classes loaded in one way on an | |
7218 | other. Check methods of source parsed classes. Then reorder the | |
7219 | fields and layout the classes or the type of all source parsed | |
7220 | classes */ | |
7221 | ||
7222 | void | |
7223 | java_layout_classes () | |
7224 | { | |
7225 | tree current; | |
7226 | int save_error_count = java_error_count; | |
7227 | ||
7228 | /* Layout the methods of all classes seen so far */ | |
7229 | java_layout_seen_class_methods (); | |
7230 | java_parse_abort_on_error (); | |
7231 | all_class_list = NULL_TREE; | |
7232 | ||
7233 | /* Then check the methods of all parsed classes */ | |
7234 | for (current = ctxp->gclass_list; current; current = TREE_CHAIN (current)) | |
7235 | if (CLASS_FROM_SOURCE_P (TREE_TYPE (TREE_VALUE (current)))) | |
7236 | CHECK_METHODS (TREE_VALUE (current)); | |
7237 | java_parse_abort_on_error (); | |
7238 | ||
7239 | for (current = ctxp->gclass_list; current; current = TREE_CHAIN (current)) | |
7240 | { | |
7241 | current_class = TREE_TYPE (TREE_VALUE (current)); | |
7242 | layout_class (current_class); | |
5e942c50 | 7243 | |
c877974e APB |
7244 | /* From now on, the class is considered completely loaded */ |
7245 | CLASS_LOADED_P (current_class) = 1; | |
7246 | ||
5e942c50 APB |
7247 | /* Error reported by the caller */ |
7248 | if (java_error_count) | |
7249 | return; | |
e04a16fb | 7250 | } |
23a79c61 APB |
7251 | |
7252 | /* We might have reloaded classes durign the process of laying out | |
7253 | classes for code generation. We must layout the methods of those | |
7254 | late additions, as constructor checks might use them */ | |
1886c9d8 | 7255 | java_layout_seen_class_methods (); |
23a79c61 | 7256 | java_parse_abort_on_error (); |
e04a16fb AG |
7257 | } |
7258 | ||
c2952b01 APB |
7259 | /* Expand methods in the current set of classes rememebered for |
7260 | generation. */ | |
e04a16fb | 7261 | |
49f48c71 | 7262 | static void |
c2952b01 | 7263 | java_complete_expand_classes () |
e04a16fb AG |
7264 | { |
7265 | tree current; | |
ce6e9147 APB |
7266 | |
7267 | do_not_fold = flag_emit_xref; | |
c2952b01 | 7268 | |
e04a16fb | 7269 | for (current = ctxp->class_list; current; current = TREE_CHAIN (current)) |
c2952b01 APB |
7270 | if (!INNER_CLASS_DECL_P (current)) |
7271 | java_complete_expand_class (current); | |
7272 | } | |
e04a16fb | 7273 | |
c2952b01 APB |
7274 | /* Expand the methods found in OUTER, starting first by OUTER's inner |
7275 | classes, if any. */ | |
e04a16fb | 7276 | |
c2952b01 APB |
7277 | static void |
7278 | java_complete_expand_class (outer) | |
7279 | tree outer; | |
7280 | { | |
7281 | tree inner_list; | |
e04a16fb | 7282 | |
c2952b01 | 7283 | set_nested_class_simple_name_value (outer, 1); /* Set */ |
cd9643f7 | 7284 | |
c2952b01 APB |
7285 | /* We need to go after all inner classes and start expanding them, |
7286 | starting with most nested ones. We have to do that because nested | |
7287 | classes might add functions to outer classes */ | |
e04a16fb | 7288 | |
c2952b01 APB |
7289 | for (inner_list = DECL_INNER_CLASS_LIST (outer); |
7290 | inner_list; inner_list = TREE_CHAIN (inner_list)) | |
7291 | java_complete_expand_class (TREE_PURPOSE (inner_list)); | |
22eed1e6 | 7292 | |
c2952b01 APB |
7293 | java_complete_expand_methods (outer); |
7294 | set_nested_class_simple_name_value (outer, 0); /* Reset */ | |
7295 | } | |
7296 | ||
7297 | /* Expand methods registered in CLASS_DECL. The general idea is that | |
7298 | we expand regular methods first. This allows us get an estimate on | |
7299 | how outer context local alias fields are really used so we can add | |
7300 | to the constructor just enough code to initialize them properly (it | |
7301 | also lets us generate $finit$ correctly.) Then we expand the | |
7302 | constructors and then <clinit>. */ | |
7303 | ||
7304 | static void | |
7305 | java_complete_expand_methods (class_decl) | |
7306 | tree class_decl; | |
7307 | { | |
7308 | tree clinit, finit, decl, first_decl; | |
7309 | ||
7310 | current_class = TREE_TYPE (class_decl); | |
7311 | ||
7312 | /* Initialize a new constant pool */ | |
7313 | init_outgoing_cpool (); | |
7314 | ||
7315 | /* Pre-expand <clinit> to figure whether we really need it or | |
7316 | not. If we do need it, we pre-expand the static fields so they're | |
7317 | ready to be used somewhere else. <clinit> will be fully expanded | |
7318 | after we processed the constructors. */ | |
7319 | first_decl = TYPE_METHODS (current_class); | |
7320 | clinit = maybe_generate_pre_expand_clinit (current_class); | |
7321 | ||
7322 | /* Then generate $finit$ (if we need to) because constructor will | |
7323 | try to use it.*/ | |
7324 | if (TYPE_FINIT_STMT_LIST (current_class)) | |
7325 | { | |
7326 | finit = generate_finit (current_class); | |
7327 | java_complete_expand_method (finit); | |
7328 | } | |
7329 | ||
7330 | /* Now do the constructors */ | |
7331 | for (decl = first_decl ; !java_error_count && decl; decl = TREE_CHAIN (decl)) | |
7332 | { | |
7333 | int no_body; | |
7334 | ||
7335 | if (!DECL_CONSTRUCTOR_P (decl)) | |
7336 | continue; | |
7337 | ||
7338 | no_body = !DECL_FUNCTION_BODY (decl); | |
7339 | /* Don't generate debug info on line zero when expanding a | |
7340 | generated constructor. */ | |
7341 | if (no_body) | |
7342 | restore_line_number_status (1); | |
7343 | ||
7344 | java_complete_expand_method (decl); | |
7345 | ||
7346 | if (no_body) | |
7347 | restore_line_number_status (0); | |
7348 | } | |
7349 | ||
7350 | /* First, do the ordinary methods. */ | |
7351 | for (decl = first_decl; decl; decl = TREE_CHAIN (decl)) | |
7352 | { | |
7145d9fe TT |
7353 | /* Skip abstract or native methods -- but do handle native |
7354 | methods when generating JNI stubs. */ | |
7355 | if (METHOD_ABSTRACT (decl) | |
7356 | || (! flag_jni && METHOD_NATIVE (decl)) | |
b7805411 | 7357 | || DECL_CONSTRUCTOR_P (decl) || DECL_CLINIT_P (decl)) |
c2952b01 | 7358 | continue; |
7145d9fe TT |
7359 | |
7360 | if (METHOD_NATIVE (decl)) | |
7361 | { | |
7362 | tree body = build_jni_stub (decl); | |
7363 | BLOCK_EXPR_BODY (DECL_FUNCTION_BODY (decl)) = body; | |
7364 | } | |
7365 | ||
c2952b01 APB |
7366 | java_complete_expand_method (decl); |
7367 | } | |
7368 | ||
7369 | /* If there is indeed a <clinit>, fully expand it now */ | |
7370 | if (clinit) | |
7371 | { | |
7372 | /* Prevent the use of `this' inside <clinit> */ | |
7373 | ctxp->explicit_constructor_p = 1; | |
7374 | java_complete_expand_method (clinit); | |
7375 | ctxp->explicit_constructor_p = 0; | |
e04a16fb | 7376 | } |
c2952b01 | 7377 | |
165f37bc APB |
7378 | /* We might have generated a class$ that we now want to expand */ |
7379 | if (TYPE_DOT_CLASS (current_class)) | |
7380 | java_complete_expand_method (TYPE_DOT_CLASS (current_class)); | |
7381 | ||
c2952b01 APB |
7382 | /* Now verify constructor circularity (stop after the first one we |
7383 | prove wrong.) */ | |
7384 | if (!CLASS_INTERFACE (class_decl)) | |
7385 | for (decl = TYPE_METHODS (current_class); decl; decl = TREE_CHAIN (decl)) | |
7386 | if (DECL_CONSTRUCTOR_P (decl) | |
7387 | && verify_constructor_circularity (decl, decl)) | |
7388 | break; | |
7389 | ||
7390 | /* Save the constant pool. We'll need to restore it later. */ | |
7391 | TYPE_CPOOL (current_class) = outgoing_cpool; | |
e04a16fb AG |
7392 | } |
7393 | ||
b9f7e36c APB |
7394 | /* Hold a list of catch clauses list. The first element of this list is |
7395 | the list of the catch clauses of the currently analysed try block. */ | |
7396 | static tree currently_caught_type_list; | |
7397 | ||
c2952b01 APB |
7398 | /* Attempt to create <clinit>. Pre-expand static fields so they can be |
7399 | safely used in some other methods/constructors. */ | |
e920ebc9 | 7400 | |
c2952b01 APB |
7401 | static tree |
7402 | maybe_generate_pre_expand_clinit (class_type) | |
7403 | tree class_type; | |
e920ebc9 | 7404 | { |
c2952b01 APB |
7405 | tree current, mdecl; |
7406 | ||
7407 | if (!TYPE_CLINIT_STMT_LIST (class_type)) | |
7408 | return NULL_TREE; | |
e920ebc9 | 7409 | |
c2952b01 APB |
7410 | /* Go through all static fields and pre expand them */ |
7411 | for (current = TYPE_FIELDS (class_type); current; | |
7412 | current = TREE_CHAIN (current)) | |
7413 | if (FIELD_STATIC (current)) | |
7414 | build_field_ref (NULL_TREE, class_type, DECL_NAME (current)); | |
7415 | ||
7416 | /* Then build the <clinit> method */ | |
7417 | mdecl = create_artificial_method (class_type, ACC_STATIC, void_type_node, | |
7418 | clinit_identifier_node, end_params_node); | |
7419 | layout_class_method (class_type, CLASSTYPE_SUPER (class_type), | |
7420 | mdecl, NULL_TREE); | |
7421 | start_artificial_method_body (mdecl); | |
7422 | ||
7423 | /* We process the list of assignment we produced as the result of | |
7424 | the declaration of initialized static field and add them as | |
7425 | statement to the <clinit> method. */ | |
7426 | for (current = TYPE_CLINIT_STMT_LIST (class_type); current; | |
7427 | current = TREE_CHAIN (current)) | |
e920ebc9 | 7428 | { |
9a7ab4b3 | 7429 | tree stmt = current; |
c2952b01 APB |
7430 | /* We build the assignment expression that will initialize the |
7431 | field to its value. There are strict rules on static | |
7432 | initializers (8.5). FIXME */ | |
9a7ab4b3 APB |
7433 | if (TREE_CODE (stmt) != BLOCK) |
7434 | stmt = build_debugable_stmt (EXPR_WFL_LINECOL (stmt), stmt); | |
c2952b01 APB |
7435 | java_method_add_stmt (mdecl, stmt); |
7436 | } | |
e920ebc9 | 7437 | |
c2952b01 APB |
7438 | end_artificial_method_body (mdecl); |
7439 | ||
92d83515 APB |
7440 | /* Now we want to place <clinit> as the last method (because we need |
7441 | it at least for interface so that it doesn't interfere with the | |
7442 | dispatch table based lookup. */ | |
7443 | if (TREE_CHAIN (TYPE_METHODS (class_type))) | |
c2952b01 | 7444 | { |
92d83515 APB |
7445 | current = TREE_CHAIN (TYPE_METHODS (class_type)); |
7446 | TYPE_METHODS (class_type) = current; | |
c2952b01 APB |
7447 | |
7448 | while (TREE_CHAIN (current)) | |
7449 | current = TREE_CHAIN (current); | |
92d83515 | 7450 | |
c2952b01 APB |
7451 | TREE_CHAIN (current) = mdecl; |
7452 | TREE_CHAIN (mdecl) = NULL_TREE; | |
e920ebc9 | 7453 | } |
c2952b01 APB |
7454 | |
7455 | return mdecl; | |
e920ebc9 APB |
7456 | } |
7457 | ||
92d83515 APB |
7458 | /* See whether we could get rid of <clinit>. Criteria are: all static |
7459 | final fields have constant initial values and the body of <clinit> | |
7460 | is empty. Return 1 if <clinit> was discarded, 0 otherwise. */ | |
7461 | ||
7462 | static int | |
7463 | maybe_yank_clinit (mdecl) | |
7464 | tree mdecl; | |
7465 | { | |
7466 | tree type, current; | |
7467 | tree fbody, bbody; | |
7468 | ||
7469 | if (!DECL_CLINIT_P (mdecl)) | |
7470 | return 0; | |
7471 | ||
7472 | /* If the body isn't empty, then we keep <clinit> */ | |
7473 | fbody = DECL_FUNCTION_BODY (mdecl); | |
7474 | if ((bbody = BLOCK_EXPR_BODY (fbody))) | |
7475 | bbody = BLOCK_EXPR_BODY (bbody); | |
7476 | if (bbody && bbody != empty_stmt_node) | |
7477 | return 0; | |
7478 | ||
7479 | type = DECL_CONTEXT (mdecl); | |
7480 | current = TYPE_FIELDS (type); | |
7481 | ||
7482 | for (current = (current ? TREE_CHAIN (current) : current); | |
7483 | current; current = TREE_CHAIN (current)) | |
7484 | if (!(FIELD_STATIC (current) && FIELD_FINAL (current) | |
7485 | && DECL_INITIAL (current) && TREE_CONSTANT (DECL_INITIAL (current)))) | |
7486 | break; | |
7487 | ||
7488 | if (current) | |
7489 | return 0; | |
7490 | ||
7491 | /* Get rid of <clinit> in the class' list of methods */ | |
7492 | if (TYPE_METHODS (type) == mdecl) | |
7493 | TYPE_METHODS (type) = TREE_CHAIN (mdecl); | |
7494 | else | |
7495 | for (current = TYPE_METHODS (type); current; | |
7496 | current = TREE_CHAIN (current)) | |
7497 | if (TREE_CHAIN (current) == mdecl) | |
7498 | { | |
7499 | TREE_CHAIN (current) = TREE_CHAIN (mdecl); | |
7500 | break; | |
7501 | } | |
7502 | ||
7503 | return 1; | |
7504 | } | |
7505 | ||
7506 | ||
e04a16fb AG |
7507 | /* Complete and expand a method. */ |
7508 | ||
7509 | static void | |
7510 | java_complete_expand_method (mdecl) | |
7511 | tree mdecl; | |
7512 | { | |
92d83515 APB |
7513 | int yank_clinit = 0; |
7514 | ||
c2952b01 | 7515 | current_function_decl = mdecl; |
22eed1e6 APB |
7516 | /* Fix constructors before expanding them */ |
7517 | if (DECL_CONSTRUCTOR_P (mdecl)) | |
7518 | fix_constructors (mdecl); | |
e04a16fb | 7519 | |
22eed1e6 | 7520 | /* Expand functions that have a body */ |
e04a16fb AG |
7521 | if (DECL_FUNCTION_BODY (mdecl)) |
7522 | { | |
9bbc7d9f PB |
7523 | tree fbody = DECL_FUNCTION_BODY (mdecl); |
7524 | tree block_body = BLOCK_EXPR_BODY (fbody); | |
cd531a2e | 7525 | tree exception_copy = NULL_TREE; |
e04a16fb | 7526 | expand_start_java_method (mdecl); |
939d7216 | 7527 | build_result_decl (mdecl); |
e04a16fb AG |
7528 | |
7529 | current_this | |
7530 | = (!METHOD_STATIC (mdecl) ? | |
7531 | BLOCK_EXPR_DECLS (DECL_FUNCTION_BODY (mdecl)) : NULL_TREE); | |
7532 | ||
ce6e9147 APB |
7533 | /* Purge the `throws' list of unchecked exceptions. If we're |
7534 | doing xref, save a copy of the list and re-install it | |
7535 | later. */ | |
7536 | if (flag_emit_xref) | |
7537 | exception_copy = copy_list (DECL_FUNCTION_THROWS (mdecl)); | |
7538 | ||
b9f7e36c APB |
7539 | purge_unchecked_exceptions (mdecl); |
7540 | ||
7541 | /* Install exceptions thrown with `throws' */ | |
7542 | PUSH_EXCEPTIONS (DECL_FUNCTION_THROWS (mdecl)); | |
7543 | ||
9bbc7d9f | 7544 | if (block_body != NULL_TREE) |
bc3ca41b PB |
7545 | { |
7546 | block_body = java_complete_tree (block_body); | |
c2952b01 | 7547 | |
7145d9fe | 7548 | if (! flag_emit_xref && ! METHOD_NATIVE (mdecl)) |
ce6e9147 | 7549 | check_for_initialization (block_body); |
f099f336 | 7550 | ctxp->explicit_constructor_p = 0; |
bc3ca41b | 7551 | } |
e803d3b2 | 7552 | |
9bbc7d9f | 7553 | BLOCK_EXPR_BODY (fbody) = block_body; |
5e942c50 | 7554 | |
c2952b01 APB |
7555 | /* If we saw a return but couldn't evaluate it properly, we'll |
7556 | have an error_mark_node here. */ | |
7557 | if (block_body != error_mark_node | |
7558 | && (block_body == NULL_TREE || CAN_COMPLETE_NORMALLY (block_body)) | |
ce6e9147 APB |
7559 | && TREE_CODE (TREE_TYPE (TREE_TYPE (mdecl))) != VOID_TYPE |
7560 | && !flag_emit_xref) | |
82371d41 | 7561 | missing_return_error (current_function_decl); |
7525cc04 | 7562 | |
92d83515 APB |
7563 | /* Check wether we could just get rid of clinit, now the picture |
7564 | is complete. */ | |
7565 | if (!(yank_clinit = maybe_yank_clinit (mdecl))) | |
7566 | complete_start_java_method (mdecl); | |
7567 | ||
e04a16fb | 7568 | /* Don't go any further if we've found error(s) during the |
92d83515 APB |
7569 | expansion */ |
7570 | if (!java_error_count && !yank_clinit) | |
e04a16fb | 7571 | source_end_java_method (); |
22eed1e6 APB |
7572 | else |
7573 | { | |
92d83515 APB |
7574 | if (java_error_count) |
7575 | pushdecl_force_head (DECL_ARGUMENTS (mdecl)); | |
22eed1e6 APB |
7576 | poplevel (1, 0, 1); |
7577 | } | |
b9f7e36c APB |
7578 | |
7579 | /* Pop the exceptions and sanity check */ | |
7580 | POP_EXCEPTIONS(); | |
7581 | if (currently_caught_type_list) | |
7582 | fatal ("Exception list non empty - java_complete_expand_method"); | |
ce6e9147 APB |
7583 | |
7584 | if (flag_emit_xref) | |
7585 | DECL_FUNCTION_THROWS (mdecl) = exception_copy; | |
e04a16fb AG |
7586 | } |
7587 | } | |
7588 | ||
c2952b01 APB |
7589 | \f |
7590 | ||
7591 | /* This section of the code deals with accessing enclosing context | |
7592 | fields either directly by using the relevant access to this$<n> or | |
7593 | by invoking an access method crafted for that purpose. */ | |
7594 | ||
7595 | /* Build the necessary access from an inner class to an outer | |
7596 | class. This routine could be optimized to cache previous result | |
7597 | (decl, current_class and returned access). When an access method | |
7598 | needs to be generated, it always takes the form of a read. It might | |
7599 | be later turned into a write by calling outer_field_access_fix. */ | |
7600 | ||
7601 | static tree | |
7602 | build_outer_field_access (id, decl) | |
7603 | tree id, decl; | |
7604 | { | |
7605 | tree access = NULL_TREE; | |
7606 | tree ctx = TREE_TYPE (DECL_CONTEXT (TYPE_NAME (current_class))); | |
7607 | ||
7608 | /* If decl's class is the direct outer class of the current_class, | |
7609 | build the access as `this$<n>.<field>'. Not that we will break | |
7610 | the `private' barrier if we're not emitting bytecodes. */ | |
7611 | if (ctx == DECL_CONTEXT (decl) | |
7612 | && (!FIELD_PRIVATE (decl) || !flag_emit_class_files )) | |
7613 | { | |
7614 | tree thisn = build_current_thisn (current_class); | |
7615 | access = make_qualified_primary (build_wfl_node (thisn), | |
7616 | id, EXPR_WFL_LINECOL (id)); | |
7617 | } | |
7618 | /* Otherwise, generate access methods to outer this and access the | |
7619 | field (either using an access method or by direct access.) */ | |
7620 | else | |
7621 | { | |
7622 | int lc = EXPR_WFL_LINECOL (id); | |
7623 | ||
7624 | /* Now we chain the required number of calls to the access$0 to | |
7625 | get a hold to the enclosing instance we need, and the we | |
7626 | build the field access. */ | |
7627 | access = build_access_to_thisn (ctx, DECL_CONTEXT (decl), lc); | |
7628 | ||
7629 | /* If the field is private and we're generating bytecode, then | |
7630 | we generate an access method */ | |
7631 | if (FIELD_PRIVATE (decl) && flag_emit_class_files ) | |
7632 | { | |
7633 | tree name = build_outer_field_access_methods (decl); | |
7634 | access = build_outer_field_access_expr (lc, DECL_CONTEXT (decl), | |
7635 | name, access, NULL_TREE); | |
7636 | } | |
7637 | /* Otherwise we use `access$(this$<j>). ... access$(this$<i>).<field>'. | |
7638 | Once again we break the `private' access rule from a foreign | |
7639 | class. */ | |
7640 | else | |
7641 | access = make_qualified_primary (access, id, lc); | |
7642 | } | |
7643 | return resolve_expression_name (access, NULL); | |
7644 | } | |
7645 | ||
7646 | /* Return a non zero value if NODE describes an outer field inner | |
7647 | access. */ | |
7648 | ||
7649 | static int | |
7650 | outer_field_access_p (type, decl) | |
7651 | tree type, decl; | |
7652 | { | |
7653 | if (!INNER_CLASS_TYPE_P (type) | |
7654 | || TREE_CODE (decl) != FIELD_DECL | |
7655 | || DECL_CONTEXT (decl) == type) | |
7656 | return 0; | |
7657 | ||
7658 | for (type = TREE_TYPE (DECL_CONTEXT (TYPE_NAME (type))); ; | |
7659 | type = TREE_TYPE (DECL_CONTEXT (TYPE_NAME (type)))) | |
7660 | { | |
7661 | if (type == DECL_CONTEXT (decl)) | |
7662 | return 1; | |
7663 | if (!DECL_CONTEXT (TYPE_NAME (type))) | |
7664 | break; | |
7665 | } | |
7666 | ||
7667 | return 0; | |
7668 | } | |
7669 | ||
7670 | /* Return a non zero value if NODE represents an outer field inner | |
7671 | access that was been already expanded. As a side effect, it returns | |
7672 | the name of the field being accessed and the argument passed to the | |
7673 | access function, suitable for a regeneration of the access method | |
7674 | call if necessary. */ | |
7675 | ||
7676 | static int | |
7677 | outer_field_expanded_access_p (node, name, arg_type, arg) | |
7678 | tree node, *name, *arg_type, *arg; | |
7679 | { | |
7680 | int identified = 0; | |
7681 | ||
7682 | if (TREE_CODE (node) != CALL_EXPR) | |
7683 | return 0; | |
7684 | ||
7685 | /* Well, gcj generates slightly different tree nodes when compiling | |
7686 | to native or bytecodes. It's the case for function calls. */ | |
7687 | ||
7688 | if (flag_emit_class_files | |
7689 | && TREE_CODE (node) == CALL_EXPR | |
7690 | && OUTER_FIELD_ACCESS_IDENTIFIER_P (DECL_NAME (TREE_OPERAND (node, 0)))) | |
7691 | identified = 1; | |
7692 | else if (!flag_emit_class_files) | |
7693 | { | |
7694 | node = TREE_OPERAND (node, 0); | |
7695 | ||
7696 | if (node && TREE_OPERAND (node, 0) | |
7697 | && TREE_CODE (TREE_OPERAND (node, 0)) == ADDR_EXPR) | |
7698 | { | |
7699 | node = TREE_OPERAND (node, 0); | |
7700 | if (TREE_OPERAND (node, 0) | |
7701 | && TREE_CODE (TREE_OPERAND (node, 0)) == FUNCTION_DECL | |
7702 | && (OUTER_FIELD_ACCESS_IDENTIFIER_P | |
7703 | (DECL_NAME (TREE_OPERAND (node, 0))))) | |
7704 | identified = 1; | |
7705 | } | |
7706 | } | |
7707 | ||
7708 | if (identified && name && arg_type && arg) | |
7709 | { | |
7710 | tree argument = TREE_OPERAND (node, 1); | |
7711 | *name = DECL_NAME (TREE_OPERAND (node, 0)); | |
7712 | *arg_type = TREE_TYPE (TREE_TYPE (TREE_VALUE (argument))); | |
7713 | *arg = TREE_VALUE (argument); | |
7714 | } | |
7715 | return identified; | |
7716 | } | |
7717 | ||
7718 | /* Detect in NODE an outer field read access from an inner class and | |
7719 | transform it into a write with RHS as an argument. This function is | |
7720 | called from the java_complete_lhs when an assignment to a LHS can | |
7721 | be identified. */ | |
7722 | ||
7723 | static tree | |
7724 | outer_field_access_fix (wfl, node, rhs) | |
7725 | tree wfl, node, rhs; | |
7726 | { | |
7727 | tree name, arg_type, arg; | |
7728 | ||
7729 | if (outer_field_expanded_access_p (node, &name, &arg_type, &arg)) | |
7730 | { | |
7731 | /* At any rate, check whether we're trying to assign a value to | |
7732 | a final. */ | |
7733 | tree accessed = (JDECL_P (node) ? node : | |
7734 | (TREE_CODE (node) == COMPONENT_REF ? | |
7735 | TREE_OPERAND (node, 1) : node)); | |
7736 | if (check_final_assignment (accessed, wfl)) | |
7737 | return error_mark_node; | |
7738 | ||
7739 | node = build_outer_field_access_expr (EXPR_WFL_LINECOL (wfl), | |
7740 | arg_type, name, arg, rhs); | |
7741 | return java_complete_tree (node); | |
7742 | } | |
7743 | return NULL_TREE; | |
7744 | } | |
7745 | ||
7746 | /* Construct the expression that calls an access method: | |
7747 | <type>.access$<n>(<arg1> [, <arg2>]); | |
7748 | ||
7749 | ARG2 can be NULL and will be omitted in that case. It will denote a | |
7750 | read access. */ | |
7751 | ||
7752 | static tree | |
7753 | build_outer_field_access_expr (lc, type, access_method_name, arg1, arg2) | |
7754 | int lc; | |
7755 | tree type, access_method_name, arg1, arg2; | |
7756 | { | |
7757 | tree args, cn, access; | |
7758 | ||
7759 | args = arg1 ? arg1 : | |
7760 | build_wfl_node (build_current_thisn (current_class)); | |
7761 | args = build_tree_list (NULL_TREE, args); | |
7762 | ||
7763 | if (arg2) | |
7764 | args = tree_cons (NULL_TREE, arg2, args); | |
7765 | ||
7766 | access = build_method_invocation (build_wfl_node (access_method_name), args); | |
7767 | cn = build_wfl_node (DECL_NAME (TYPE_NAME (type))); | |
7768 | return make_qualified_primary (cn, access, lc); | |
7769 | } | |
7770 | ||
7771 | static tree | |
7772 | build_new_access_id () | |
7773 | { | |
7774 | static int access_n_counter = 1; | |
7775 | char buffer [128]; | |
7776 | ||
7777 | sprintf (buffer, "access$%d", access_n_counter++); | |
7778 | return get_identifier (buffer); | |
7779 | } | |
7780 | ||
7781 | /* Create the static access functions for the outer field DECL. We define a | |
7782 | read: | |
7783 | TREE_TYPE (<field>) access$<n> (DECL_CONTEXT (<field>) inst$) { | |
7784 | return inst$.field; | |
7785 | } | |
7786 | and a write access: | |
7787 | TREE_TYPE (<field>) access$<n> (DECL_CONTEXT (<field>) inst$, | |
7788 | TREE_TYPE (<field>) value$) { | |
7789 | return inst$.field = value$; | |
7790 | } | |
7791 | We should have a usage flags on the DECL so we can lazily turn the ones | |
7792 | we're using for code generation. FIXME. | |
7793 | */ | |
7794 | ||
7795 | static tree | |
7796 | build_outer_field_access_methods (decl) | |
7797 | tree decl; | |
7798 | { | |
7799 | tree id, args, stmt, mdecl; | |
7800 | ||
7801 | /* Check point, to be removed. FIXME */ | |
7802 | if (FIELD_INNER_ACCESS (decl) | |
7803 | && TREE_CODE (FIELD_INNER_ACCESS (decl)) != IDENTIFIER_NODE) | |
7804 | abort (); | |
7805 | ||
7806 | if (FIELD_INNER_ACCESS (decl)) | |
7807 | return FIELD_INNER_ACCESS (decl); | |
7808 | ||
7809 | push_obstacks (&permanent_obstack, &permanent_obstack); | |
7810 | ||
7811 | /* Create the identifier and a function named after it. */ | |
7812 | id = build_new_access_id (); | |
7813 | ||
7814 | /* The identifier is marked as bearing the name of a generated write | |
7815 | access function for outer field accessed from inner classes. */ | |
7816 | OUTER_FIELD_ACCESS_IDENTIFIER_P (id) = 1; | |
7817 | ||
7818 | /* Create the read access */ | |
7819 | args = build_tree_list (inst_id, build_pointer_type (DECL_CONTEXT (decl))); | |
7820 | TREE_CHAIN (args) = end_params_node; | |
7821 | stmt = make_qualified_primary (build_wfl_node (inst_id), | |
7822 | build_wfl_node (DECL_NAME (decl)), 0); | |
7823 | stmt = build_return (0, stmt); | |
7824 | mdecl = build_outer_field_access_method (DECL_CONTEXT (decl), | |
7825 | TREE_TYPE (decl), id, args, stmt); | |
7826 | DECL_FUNCTION_ACCESS_DECL (mdecl) = decl; | |
7827 | ||
7828 | /* Create the write access method */ | |
7829 | args = build_tree_list (inst_id, build_pointer_type (DECL_CONTEXT (decl))); | |
7830 | TREE_CHAIN (args) = build_tree_list (wpv_id, TREE_TYPE (decl)); | |
7831 | TREE_CHAIN (TREE_CHAIN (args)) = end_params_node; | |
7832 | stmt = make_qualified_primary (build_wfl_node (inst_id), | |
7833 | build_wfl_node (DECL_NAME (decl)), 0); | |
7834 | stmt = build_return (0, build_assignment (ASSIGN_TK, 0, stmt, | |
7835 | build_wfl_node (wpv_id))); | |
7836 | ||
7837 | mdecl = build_outer_field_access_method (DECL_CONTEXT (decl), | |
7838 | TREE_TYPE (decl), id, args, stmt); | |
7839 | DECL_FUNCTION_ACCESS_DECL (mdecl) = decl; | |
7840 | pop_obstacks (); | |
7841 | ||
7842 | /* Return the access name */ | |
7843 | return FIELD_INNER_ACCESS (decl) = id; | |
7844 | } | |
7845 | ||
7846 | /* Build an field access method NAME. */ | |
7847 | ||
7848 | static tree | |
7849 | build_outer_field_access_method (class, type, name, args, body) | |
7850 | tree class, type, name, args, body; | |
7851 | { | |
7852 | tree saved_current_function_decl, mdecl; | |
7853 | ||
7854 | /* Create the method */ | |
7855 | mdecl = create_artificial_method (class, ACC_STATIC, type, name, args); | |
7856 | fix_method_argument_names (args, mdecl); | |
7857 | layout_class_method (class, NULL_TREE, mdecl, NULL_TREE); | |
7858 | ||
7859 | /* Attach the method body. */ | |
7860 | saved_current_function_decl = current_function_decl; | |
7861 | start_artificial_method_body (mdecl); | |
7862 | java_method_add_stmt (mdecl, body); | |
7863 | end_artificial_method_body (mdecl); | |
7864 | current_function_decl = saved_current_function_decl; | |
7865 | ||
7866 | return mdecl; | |
7867 | } | |
7868 | ||
7869 | \f | |
7870 | /* This section deals with building access function necessary for | |
7871 | certain kinds of method invocation from inner classes. */ | |
7872 | ||
7873 | static tree | |
7874 | build_outer_method_access_method (decl) | |
7875 | tree decl; | |
7876 | { | |
7877 | tree saved_current_function_decl, mdecl; | |
7878 | tree args = NULL_TREE, call_args = NULL_TREE; | |
7879 | tree carg, id, body, class; | |
7880 | char buffer [80]; | |
7881 | int parm_id_count = 0; | |
7882 | ||
7883 | /* Test this abort with an access to a private field */ | |
7884 | if (!strcmp (IDENTIFIER_POINTER (DECL_NAME (decl)), "access$")) | |
7885 | abort (); | |
7886 | ||
7887 | /* Check the cache first */ | |
7888 | if (DECL_FUNCTION_INNER_ACCESS (decl)) | |
7889 | return DECL_FUNCTION_INNER_ACCESS (decl); | |
7890 | ||
7891 | class = DECL_CONTEXT (decl); | |
7892 | ||
7893 | /* Obtain an access identifier and mark it */ | |
7894 | id = build_new_access_id (); | |
7895 | OUTER_FIELD_ACCESS_IDENTIFIER_P (id) = 1; | |
7896 | ||
7897 | push_obstacks (&permanent_obstack, &permanent_obstack); | |
7898 | ||
7899 | carg = TYPE_ARG_TYPES (TREE_TYPE (decl)); | |
7900 | /* Create the arguments, as much as the original */ | |
7901 | for (; carg && carg != end_params_node; | |
7902 | carg = TREE_CHAIN (carg)) | |
7903 | { | |
7904 | sprintf (buffer, "write_parm_value$%d", parm_id_count++); | |
7905 | args = chainon (args, build_tree_list (get_identifier (buffer), | |
7906 | TREE_VALUE (carg))); | |
7907 | } | |
7908 | args = chainon (args, end_params_node); | |
7909 | ||
7910 | /* Create the method */ | |
7911 | mdecl = create_artificial_method (class, ACC_STATIC, | |
7912 | TREE_TYPE (TREE_TYPE (decl)), id, args); | |
7913 | layout_class_method (class, NULL_TREE, mdecl, NULL_TREE); | |
7914 | /* There is a potential bug here. We should be able to use | |
7915 | fix_method_argument_names, but then arg names get mixed up and | |
7916 | eventually a constructor will have its this$0 altered and the | |
7917 | outer context won't be assignment properly. The test case is | |
7918 | stub.java FIXME */ | |
7919 | TYPE_ARG_TYPES (TREE_TYPE (mdecl)) = args; | |
7920 | ||
7921 | /* Attach the method body. */ | |
7922 | saved_current_function_decl = current_function_decl; | |
7923 | start_artificial_method_body (mdecl); | |
7924 | ||
7925 | /* The actual method invocation uses the same args. When invoking a | |
7926 | static methods that way, we don't want to skip the first | |
7927 | argument. */ | |
7928 | carg = args; | |
7929 | if (!METHOD_STATIC (decl)) | |
7930 | carg = TREE_CHAIN (carg); | |
7931 | for (; carg && carg != end_params_node; carg = TREE_CHAIN (carg)) | |
7932 | call_args = tree_cons (NULL_TREE, build_wfl_node (TREE_PURPOSE (carg)), | |
7933 | call_args); | |
7934 | ||
7935 | body = build_method_invocation (build_wfl_node (DECL_NAME (decl)), | |
7936 | call_args); | |
7937 | if (!METHOD_STATIC (decl)) | |
7938 | body = make_qualified_primary (build_wfl_node (TREE_PURPOSE (args)), | |
7939 | body, 0); | |
7940 | if (TREE_TYPE (TREE_TYPE (decl)) != void_type_node) | |
7941 | body = build_return (0, body); | |
7942 | java_method_add_stmt (mdecl,body); | |
7943 | end_artificial_method_body (mdecl); | |
7944 | current_function_decl = saved_current_function_decl; | |
7945 | pop_obstacks (); | |
7946 | ||
7947 | /* Back tag the access function so it know what it accesses */ | |
7948 | DECL_FUNCTION_ACCESS_DECL (decl) = mdecl; | |
7949 | ||
7950 | /* Tag the current method so it knows it has an access generated */ | |
7951 | return DECL_FUNCTION_INNER_ACCESS (decl) = mdecl; | |
7952 | } | |
7953 | ||
7954 | \f | |
7955 | /* This section of the code deals with building expressions to access | |
7956 | the enclosing instance of an inner class. The enclosing instance is | |
7957 | kept in a generated field called this$<n>, with <n> being the | |
7958 | inner class nesting level (starting from 0.) */ | |
7959 | ||
7960 | /* Build an access to a given this$<n>, possibly by chaining access | |
7961 | call to others. Access methods to this$<n> are build on the fly if | |
7962 | necessary */ | |
7963 | ||
7964 | static tree | |
7965 | build_access_to_thisn (from, to, lc) | |
7966 | tree from, to; | |
7967 | int lc; | |
7968 | { | |
7969 | tree access = NULL_TREE; | |
7970 | ||
7971 | while (from != to) | |
7972 | { | |
7973 | tree access0_wfl, cn; | |
7974 | ||
7975 | maybe_build_thisn_access_method (from); | |
7976 | access0_wfl = build_wfl_node (access0_identifier_node); | |
7977 | cn = build_wfl_node (DECL_NAME (TYPE_NAME (from))); | |
7978 | EXPR_WFL_LINECOL (access0_wfl) = lc; | |
7979 | ||
7980 | if (!access) | |
7981 | { | |
7982 | access = build_current_thisn (current_class); | |
7983 | access = build_wfl_node (access); | |
7984 | } | |
7985 | access = build_tree_list (NULL_TREE, access); | |
7986 | access = build_method_invocation (access0_wfl, access); | |
7987 | access = make_qualified_primary (cn, access, lc); | |
7988 | ||
7989 | from = TREE_TYPE (DECL_CONTEXT (TYPE_NAME (from))); | |
7990 | } | |
7991 | return access; | |
7992 | } | |
7993 | ||
7994 | /* Build an access function to the this$<n> local to TYPE. NULL_TREE | |
7995 | is returned if nothing needs to be generated. Otherwise, the method | |
152de068 | 7996 | generated and a method decl is returned. |
c2952b01 APB |
7997 | |
7998 | NOTE: These generated methods should be declared in a class file | |
7999 | attribute so that they can't be referred to directly. */ | |
8000 | ||
8001 | static tree | |
8002 | maybe_build_thisn_access_method (type) | |
8003 | tree type; | |
8004 | { | |
8005 | tree mdecl, args, stmt, rtype; | |
8006 | tree saved_current_function_decl; | |
8007 | ||
8008 | /* If TYPE is a top-level class, no access method is required. | |
8009 | If there already is such an access method, bail out. */ | |
8010 | if (CLASS_ACCESS0_GENERATED_P (type) || !INNER_CLASS_TYPE_P (type)) | |
8011 | return NULL_TREE; | |
8012 | ||
8013 | /* We generate the method. The method looks like: | |
8014 | static <outer_of_type> access$0 (<type> inst$) { return inst$.this$<n>; } | |
8015 | */ | |
8016 | push_obstacks (&permanent_obstack, &permanent_obstack); | |
8017 | args = build_tree_list (inst_id, build_pointer_type (type)); | |
8018 | TREE_CHAIN (args) = end_params_node; | |
8019 | rtype = build_pointer_type (TREE_TYPE (DECL_CONTEXT (TYPE_NAME (type)))); | |
8020 | mdecl = create_artificial_method (type, ACC_STATIC, rtype, | |
8021 | access0_identifier_node, args); | |
8022 | fix_method_argument_names (args, mdecl); | |
8023 | layout_class_method (type, NULL_TREE, mdecl, NULL_TREE); | |
8024 | stmt = build_current_thisn (type); | |
8025 | stmt = make_qualified_primary (build_wfl_node (inst_id), | |
8026 | build_wfl_node (stmt), 0); | |
8027 | stmt = build_return (0, stmt); | |
8028 | ||
8029 | saved_current_function_decl = current_function_decl; | |
8030 | start_artificial_method_body (mdecl); | |
8031 | java_method_add_stmt (mdecl, stmt); | |
8032 | end_artificial_method_body (mdecl); | |
8033 | current_function_decl = saved_current_function_decl; | |
8034 | pop_obstacks (); | |
8035 | ||
8036 | CLASS_ACCESS0_GENERATED_P (type) = 1; | |
8037 | ||
8038 | return mdecl; | |
8039 | } | |
8040 | ||
8041 | /* Craft an correctly numbered `this$<n>'string. this$0 is used for | |
8042 | the first level of innerclassing. this$1 for the next one, etc... | |
8043 | This function can be invoked with TYPE to NULL, available and then | |
8044 | has to count the parser context. */ | |
8045 | ||
8046 | static tree | |
8047 | build_current_thisn (type) | |
8048 | tree type; | |
8049 | { | |
8050 | static int saved_i = -1; | |
8051 | static tree saved_thisn = NULL_TREE; | |
8052 | ||
8053 | tree decl; | |
8054 | char buffer [80]; | |
8055 | int i = 0; | |
8056 | ||
8057 | if (type) | |
8058 | { | |
8059 | static tree saved_type = NULL_TREE; | |
8060 | static int saved_type_i = 0; | |
8061 | ||
8062 | if (type == saved_type) | |
8063 | i = saved_type_i; | |
8064 | else | |
8065 | { | |
8066 | for (i = -1, decl = DECL_CONTEXT (TYPE_NAME (type)); | |
8067 | decl; decl = DECL_CONTEXT (decl), i++) | |
8068 | ; | |
8069 | ||
8070 | saved_type = type; | |
8071 | saved_type_i = i; | |
8072 | } | |
8073 | } | |
8074 | else | |
8075 | i = list_length (GET_CPC_LIST ())-2; | |
8076 | ||
8077 | if (i == saved_i) | |
8078 | return saved_thisn; | |
8079 | ||
8080 | sprintf (buffer, "this$%d", i); | |
8081 | saved_i = i; | |
8082 | saved_thisn = get_identifier (buffer); | |
8083 | return saved_thisn; | |
8084 | } | |
8085 | ||
8086 | /* Return the assignement to the hidden enclosing context `this$<n>' | |
8087 | by the second incoming parameter to the innerclass constructor. The | |
8088 | form used is `this.this$<n> = this$<n>;'. */ | |
8089 | ||
8090 | static tree | |
8091 | build_thisn_assign () | |
8092 | { | |
8093 | if (current_class && PURE_INNER_CLASS_TYPE_P (current_class)) | |
8094 | { | |
8095 | tree thisn = build_current_thisn (current_class); | |
8096 | tree lhs = make_qualified_primary (build_wfl_node (this_identifier_node), | |
8097 | build_wfl_node (thisn), 0); | |
8098 | tree rhs = build_wfl_node (thisn); | |
8099 | EXPR_WFL_SET_LINECOL (lhs, lineno, 0); | |
8100 | return build_assignment (ASSIGN_TK, EXPR_WFL_LINECOL (lhs), lhs, rhs); | |
8101 | } | |
8102 | return NULL_TREE; | |
8103 | } | |
8104 | ||
8105 | \f | |
165f37bc APB |
8106 | /* Building the synthetic `class$' used to implement the `.class' 1.1 |
8107 | extension for non primitive types. This method looks like: | |
8108 | ||
8109 | static Class class$(String type) throws NoClassDefFoundError | |
8110 | { | |
8111 | try {return (java.lang.Class.forName (String));} | |
8112 | catch (ClassNotFoundException e) { | |
8113 | throw new NoClassDefFoundError(e.getMessage());} | |
8114 | } */ | |
8115 | ||
8116 | static tree | |
8117 | build_dot_class_method (class) | |
8118 | tree class; | |
8119 | { | |
8120 | #define BWF(S) build_wfl_node (get_identifier ((S))) | |
8121 | #define MQN(X,Y) make_qualified_name ((X), (Y), 0) | |
8122 | tree args, tmp, saved_current_function_decl, mdecl; | |
8123 | tree stmt, throw_stmt, catch, catch_block, try_block; | |
8124 | tree catch_clause_param; | |
8125 | tree class_not_found_exception, no_class_def_found_error; | |
8126 | ||
8127 | static tree get_message_wfl, type_parm_wfl; | |
8128 | ||
8129 | if (!get_message_wfl) | |
8130 | { | |
8131 | get_message_wfl = build_wfl_node (get_identifier ("getMessage")); | |
8132 | type_parm_wfl = build_wfl_node (get_identifier ("type$")); | |
8133 | } | |
8134 | ||
8135 | /* Build the arguments */ | |
8136 | args = build_tree_list (get_identifier ("type$"), | |
8137 | build_pointer_type (string_type_node)); | |
8138 | TREE_CHAIN (args) = end_params_node; | |
8139 | ||
8140 | /* Build the qualified name java.lang.Class.forName */ | |
8141 | tmp = MQN (MQN (MQN (BWF ("java"), | |
8142 | BWF ("lang")), BWF ("Class")), BWF ("forName")); | |
8143 | ||
8144 | /* For things we have to catch and throw */ | |
8145 | class_not_found_exception = | |
8146 | lookup_class (get_identifier ("java.lang.ClassNotFoundException")); | |
8147 | no_class_def_found_error = | |
8148 | lookup_class (get_identifier ("java.lang.NoClassDefFoundError")); | |
8149 | load_class (class_not_found_exception, 1); | |
8150 | load_class (no_class_def_found_error, 1); | |
8151 | ||
8152 | /* Create the "class$" function */ | |
8153 | mdecl = create_artificial_method (class, ACC_STATIC, | |
8154 | build_pointer_type (class_type_node), | |
8155 | get_identifier ("class$"), args); | |
8156 | DECL_FUNCTION_THROWS (mdecl) = build_tree_list (NULL_TREE, | |
8157 | no_class_def_found_error); | |
8158 | ||
8159 | /* We start by building the try block. We need to build: | |
8160 | return (java.lang.Class.forName (type)); */ | |
8161 | stmt = build_method_invocation (tmp, | |
8162 | build_tree_list (NULL_TREE, type_parm_wfl)); | |
8163 | stmt = build_return (0, stmt); | |
8164 | /* Put it in a block. That's the try block */ | |
8165 | try_block = build_expr_block (stmt, NULL_TREE); | |
8166 | ||
8167 | /* Now onto the catch block. We start by building the expression | |
8168 | throwing a new exception: | |
8169 | throw new NoClassDefFoundError (_.getMessage); */ | |
8170 | throw_stmt = make_qualified_name (build_wfl_node (wpv_id), | |
8171 | get_message_wfl, 0); | |
8172 | throw_stmt = build_method_invocation (throw_stmt, NULL_TREE); | |
8173 | ||
8174 | /* Build new NoClassDefFoundError (_.getMessage) */ | |
8175 | throw_stmt = build_new_invocation | |
8176 | (build_wfl_node (get_identifier ("NoClassDefFoundError")), | |
8177 | build_tree_list (build_pointer_type (string_type_node), throw_stmt)); | |
8178 | ||
8179 | /* Build the throw, (it's too early to use BUILD_THROW) */ | |
8180 | throw_stmt = build1 (THROW_EXPR, NULL_TREE, throw_stmt); | |
8181 | ||
8182 | /* Build the catch block to encapsulate all this. We begin by | |
8183 | building an decl for the catch clause parameter and link it to | |
8184 | newly created block, the catch block. */ | |
8185 | catch_clause_param = | |
8186 | build_decl (VAR_DECL, wpv_id, | |
8187 | build_pointer_type (class_not_found_exception)); | |
8188 | catch_block = build_expr_block (NULL_TREE, catch_clause_param); | |
8189 | ||
8190 | /* We initialize the variable with the exception handler. */ | |
8191 | catch = build (MODIFY_EXPR, NULL_TREE, catch_clause_param, | |
8192 | soft_exceptioninfo_call_node); | |
8193 | add_stmt_to_block (catch_block, NULL_TREE, catch); | |
8194 | ||
8195 | /* We add the statement throwing the new exception */ | |
8196 | add_stmt_to_block (catch_block, NULL_TREE, throw_stmt); | |
8197 | ||
8198 | /* Build a catch expression for all this */ | |
8199 | catch_block = build1 (CATCH_EXPR, NULL_TREE, catch_block); | |
8200 | ||
8201 | /* Build the try/catch sequence */ | |
8202 | stmt = build_try_statement (0, try_block, catch_block); | |
8203 | ||
8204 | fix_method_argument_names (args, mdecl); | |
8205 | layout_class_method (class, NULL_TREE, mdecl, NULL_TREE); | |
8206 | saved_current_function_decl = current_function_decl; | |
8207 | start_artificial_method_body (mdecl); | |
8208 | java_method_add_stmt (mdecl, stmt); | |
8209 | end_artificial_method_body (mdecl); | |
8210 | current_function_decl = saved_current_function_decl; | |
8211 | TYPE_DOT_CLASS (class) = mdecl; | |
8212 | ||
8213 | return mdecl; | |
8214 | } | |
8215 | ||
8216 | static tree | |
8217 | build_dot_class_method_invocation (name) | |
8218 | tree name; | |
8219 | { | |
8220 | tree s = make_node (STRING_CST); | |
8221 | TREE_STRING_LENGTH (s) = IDENTIFIER_LENGTH (name); | |
8222 | TREE_STRING_POINTER (s) = obstack_alloc (expression_obstack, | |
8223 | TREE_STRING_LENGTH (s)+1); | |
8224 | strcpy (TREE_STRING_POINTER (s), IDENTIFIER_POINTER (name)); | |
8225 | return build_method_invocation (build_wfl_node (get_identifier ("class$")), | |
8226 | build_tree_list (NULL_TREE, s)); | |
8227 | } | |
8228 | ||
c2952b01 APB |
8229 | /* This section of the code deals with constructor. */ |
8230 | ||
22eed1e6 APB |
8231 | /* Craft a body for default constructor. Patch existing constructor |
8232 | bodies with call to super() and field initialization statements if | |
8233 | necessary. */ | |
8234 | ||
8235 | static void | |
8236 | fix_constructors (mdecl) | |
8237 | tree mdecl; | |
8238 | { | |
8239 | tree body = DECL_FUNCTION_BODY (mdecl); | |
c2952b01 APB |
8240 | tree thisn_assign, compound = NULL_TREE; |
8241 | tree class_type = DECL_CONTEXT (mdecl); | |
22eed1e6 | 8242 | |
22eed1e6 APB |
8243 | if (!body) |
8244 | { | |
22eed1e6 APB |
8245 | /* It is an error for the compiler to generate a default |
8246 | constructor if the superclass doesn't have a constructor that | |
c2952b01 APB |
8247 | takes no argument, or the same args for an anonymous class */ |
8248 | if (verify_constructor_super (mdecl)) | |
22eed1e6 | 8249 | { |
c2952b01 APB |
8250 | tree sclass_decl = TYPE_NAME (CLASSTYPE_SUPER (class_type)); |
8251 | tree save = DECL_NAME (mdecl); | |
49f48c71 | 8252 | const char *n = IDENTIFIER_POINTER (DECL_NAME (sclass_decl)); |
c2952b01 | 8253 | DECL_NAME (mdecl) = DECL_NAME (sclass_decl); |
781b0558 | 8254 | parse_error_context |
c2952b01 APB |
8255 | (lookup_cl (TYPE_NAME (class_type)), |
8256 | "No constructor matching `%s' found in class `%s'", | |
8257 | lang_printable_name (mdecl, 0), n); | |
8258 | DECL_NAME (mdecl) = save; | |
22eed1e6 APB |
8259 | } |
8260 | ||
c2952b01 APB |
8261 | /* The constructor body must be crafted by hand. It's the |
8262 | constructor we defined when we realize we didn't have the | |
8263 | CLASSNAME() constructor */ | |
22eed1e6 APB |
8264 | start_artificial_method_body (mdecl); |
8265 | ||
8266 | /* We don't generate a super constructor invocation if we're | |
8267 | compiling java.lang.Object. build_super_invocation takes care | |
8268 | of that. */ | |
e920ebc9 | 8269 | compound = java_method_add_stmt (mdecl, build_super_invocation (mdecl)); |
22eed1e6 | 8270 | |
c2952b01 APB |
8271 | /* Insert the instance initializer block right here, after the |
8272 | super invocation. */ | |
8273 | add_instance_initializer (mdecl); | |
8274 | ||
8275 | /* Insert an assignment to the this$<n> hidden field, if | |
8276 | necessary */ | |
8277 | if ((thisn_assign = build_thisn_assign ())) | |
8278 | java_method_add_stmt (mdecl, thisn_assign); | |
8279 | ||
22eed1e6 APB |
8280 | end_artificial_method_body (mdecl); |
8281 | } | |
8282 | /* Search for an explicit constructor invocation */ | |
8283 | else | |
8284 | { | |
8285 | int found = 0; | |
8286 | tree main_block = BLOCK_EXPR_BODY (body); | |
22eed1e6 APB |
8287 | |
8288 | while (body) | |
8289 | switch (TREE_CODE (body)) | |
8290 | { | |
8291 | case CALL_EXPR: | |
8292 | found = CALL_EXPLICIT_CONSTRUCTOR_P (body); | |
8293 | body = NULL_TREE; | |
8294 | break; | |
8295 | case COMPOUND_EXPR: | |
8296 | case EXPR_WITH_FILE_LOCATION: | |
8297 | body = TREE_OPERAND (body, 0); | |
8298 | break; | |
8299 | case BLOCK: | |
8300 | body = BLOCK_EXPR_BODY (body); | |
8301 | break; | |
8302 | default: | |
8303 | found = 0; | |
8304 | body = NULL_TREE; | |
8305 | } | |
8306 | /* The constructor is missing an invocation of super() */ | |
8307 | if (!found) | |
8308 | compound = add_stmt_to_compound (compound, NULL_TREE, | |
c2952b01 | 8309 | build_super_invocation (mdecl)); |
22eed1e6 | 8310 | |
c2952b01 APB |
8311 | /* Insert the instance initializer block right here, after the |
8312 | super invocation. */ | |
8313 | add_instance_initializer (mdecl); | |
8314 | ||
8315 | /* Generate the assignment to this$<n>, if necessary */ | |
8316 | if ((thisn_assign = build_thisn_assign ())) | |
8317 | compound = add_stmt_to_compound (compound, NULL_TREE, thisn_assign); | |
8318 | ||
22eed1e6 APB |
8319 | /* Fix the constructor main block if we're adding extra stmts */ |
8320 | if (compound) | |
8321 | { | |
8322 | compound = add_stmt_to_compound (compound, NULL_TREE, | |
8323 | BLOCK_EXPR_BODY (main_block)); | |
8324 | BLOCK_EXPR_BODY (main_block) = compound; | |
8325 | } | |
8326 | } | |
8327 | } | |
8328 | ||
8329 | /* Browse constructors in the super class, searching for a constructor | |
8330 | that doesn't take any argument. Return 0 if one is found, 1 | |
c2952b01 APB |
8331 | otherwise. If the current class is an anonymous inner class, look |
8332 | for something that has the same signature. */ | |
22eed1e6 APB |
8333 | |
8334 | static int | |
c2952b01 APB |
8335 | verify_constructor_super (mdecl) |
8336 | tree mdecl; | |
22eed1e6 APB |
8337 | { |
8338 | tree class = CLASSTYPE_SUPER (current_class); | |
152de068 | 8339 | int super_inner = PURE_INNER_CLASS_TYPE_P (class); |
c2952b01 APB |
8340 | tree sdecl; |
8341 | ||
22eed1e6 APB |
8342 | if (!class) |
8343 | return 0; | |
8344 | ||
c2952b01 | 8345 | if (ANONYMOUS_CLASS_P (current_class)) |
22eed1e6 | 8346 | { |
c2952b01 APB |
8347 | tree mdecl_arg_type; |
8348 | SKIP_THIS_AND_ARTIFICIAL_PARMS (mdecl_arg_type, mdecl); | |
8349 | for (sdecl = TYPE_METHODS (class); sdecl; sdecl = TREE_CHAIN (sdecl)) | |
8350 | if (DECL_CONSTRUCTOR_P (sdecl)) | |
8351 | { | |
152de068 APB |
8352 | tree arg_type = TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (sdecl))); |
8353 | if (super_inner) | |
8354 | arg_type = TREE_CHAIN (arg_type); | |
8355 | for (; (arg_type != end_params_node | |
8356 | && mdecl_arg_type != end_params_node); | |
c2952b01 APB |
8357 | arg_type = TREE_CHAIN (arg_type), |
8358 | mdecl_arg_type = TREE_CHAIN (mdecl_arg_type)) | |
8359 | if (TREE_VALUE (arg_type) != TREE_VALUE (mdecl_arg_type)) | |
8360 | break; | |
8361 | ||
8362 | if (arg_type == end_params_node && | |
8363 | mdecl_arg_type == end_params_node) | |
8364 | return 0; | |
8365 | } | |
8366 | } | |
8367 | else | |
8368 | { | |
8369 | for (sdecl = TYPE_METHODS (class); sdecl; sdecl = TREE_CHAIN (sdecl)) | |
22eed1e6 | 8370 | { |
152de068 APB |
8371 | tree arg = TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (sdecl))); |
8372 | if (super_inner) | |
8373 | arg = TREE_CHAIN (arg); | |
8374 | if (DECL_CONSTRUCTOR_P (sdecl) && arg == end_params_node) | |
22eed1e6 APB |
8375 | return 0; |
8376 | } | |
8377 | } | |
8378 | return 1; | |
8379 | } | |
8380 | ||
22eed1e6 | 8381 | /* Generate code for all context remembered for code generation. */ |
b351b287 APB |
8382 | |
8383 | void | |
8384 | java_expand_classes () | |
8385 | { | |
5423609c | 8386 | int save_error_count = 0; |
c2952b01 APB |
8387 | static struct parser_ctxt *saved_ctxp = NULL; |
8388 | ||
23a79c61 APB |
8389 | java_parse_abort_on_error (); |
8390 | if (!(ctxp = ctxp_for_generation)) | |
5e942c50 APB |
8391 | return; |
8392 | java_layout_classes (); | |
8393 | java_parse_abort_on_error (); | |
8394 | ||
c2952b01 | 8395 | saved_ctxp = ctxp_for_generation; |
b351b287 APB |
8396 | for (; ctxp_for_generation; ctxp_for_generation = ctxp_for_generation->next) |
8397 | { | |
8398 | ctxp = ctxp_for_generation; | |
8399 | lang_init_source (2); /* Error msgs have method prototypes */ | |
c2952b01 | 8400 | java_complete_expand_classes (); /* Complete and expand classes */ |
b351b287 APB |
8401 | java_parse_abort_on_error (); |
8402 | } | |
c2952b01 APB |
8403 | |
8404 | /* Find anonymous classes and expand their constructor, now they | |
8405 | have been fixed. */ | |
8406 | for (ctxp_for_generation = saved_ctxp; | |
8407 | ctxp_for_generation; ctxp_for_generation = ctxp_for_generation->next) | |
8408 | { | |
8409 | tree current; | |
8410 | ctxp = ctxp_for_generation; | |
8411 | for (current = ctxp->class_list; current; current = TREE_CHAIN (current)) | |
8412 | { | |
8413 | current_class = TREE_TYPE (current); | |
8414 | if (ANONYMOUS_CLASS_P (current_class)) | |
8415 | { | |
8416 | tree d; | |
8417 | for (d = TYPE_METHODS (current_class); d; d = TREE_CHAIN (d)) | |
8418 | { | |
8419 | if (DECL_CONSTRUCTOR_P (d)) | |
8420 | { | |
8421 | restore_line_number_status (1); | |
8422 | reset_method_name (d); | |
8423 | java_complete_expand_method (d); | |
8424 | restore_line_number_status (0); | |
8425 | break; /* We now there are no other ones */ | |
8426 | } | |
8427 | } | |
8428 | } | |
8429 | } | |
8430 | } | |
8431 | ||
8432 | /* If we've found error at that stage, don't try to generate | |
8433 | anything, unless we're emitting xrefs or checking the syntax only | |
8434 | (but not using -fsyntax-only for the purpose of generating | |
8435 | bytecode. */ | |
8436 | if (java_error_count && !flag_emit_xref | |
8437 | && (!flag_syntax_only && !flag_emit_class_files)) | |
8438 | return; | |
8439 | ||
8440 | /* Now things are stable, go for generation of the class data. */ | |
8441 | for (ctxp_for_generation = saved_ctxp; | |
8442 | ctxp_for_generation; ctxp_for_generation = ctxp_for_generation->next) | |
8443 | { | |
8444 | tree current; | |
8445 | ctxp = ctxp_for_generation; | |
8446 | for (current = ctxp->class_list; current; current = TREE_CHAIN (current)) | |
8447 | { | |
8448 | current_class = TREE_TYPE (current); | |
8449 | outgoing_cpool = TYPE_CPOOL (current_class); | |
8450 | if (flag_emit_class_files) | |
8451 | write_classfile (current_class); | |
8452 | if (flag_emit_xref) | |
8453 | expand_xref (current_class); | |
8454 | else if (! flag_syntax_only) | |
8455 | finish_class (); | |
8456 | } | |
8457 | } | |
b351b287 APB |
8458 | } |
8459 | ||
e04a16fb AG |
8460 | /* Wrap non WFL PRIMARY around a WFL and set EXPR_WFL_QUALIFICATION to |
8461 | a tree list node containing RIGHT. Fore coming RIGHTs will be | |
8462 | chained to this hook. LOCATION contains the location of the | |
8463 | separating `.' operator. */ | |
8464 | ||
8465 | static tree | |
8466 | make_qualified_primary (primary, right, location) | |
8467 | tree primary, right; | |
8468 | int location; | |
8469 | { | |
8470 | tree wfl; | |
8471 | ||
c2952b01 | 8472 | if (TREE_CODE (primary) != EXPR_WITH_FILE_LOCATION) |
9a7ab4b3 | 8473 | wfl = build_wfl_wrap (primary, location); |
e04a16fb AG |
8474 | else |
8475 | { | |
8476 | wfl = primary; | |
c2952b01 APB |
8477 | /* If wfl wasn't qualified, we build a first anchor */ |
8478 | if (!EXPR_WFL_QUALIFICATION (wfl)) | |
8479 | EXPR_WFL_QUALIFICATION (wfl) = build_tree_list (wfl, NULL_TREE); | |
e04a16fb AG |
8480 | } |
8481 | ||
c2952b01 | 8482 | /* And chain them */ |
e04a16fb AG |
8483 | EXPR_WFL_LINECOL (right) = location; |
8484 | chainon (EXPR_WFL_QUALIFICATION (wfl), build_tree_list (right, NULL_TREE)); | |
8485 | PRIMARY_P (wfl) = 1; | |
8486 | return wfl; | |
8487 | } | |
8488 | ||
8489 | /* Simple merge of two name separated by a `.' */ | |
8490 | ||
8491 | static tree | |
8492 | merge_qualified_name (left, right) | |
8493 | tree left, right; | |
8494 | { | |
8495 | tree node; | |
c2952b01 APB |
8496 | if (!left && !right) |
8497 | return NULL_TREE; | |
8498 | ||
8499 | if (!left) | |
8500 | return right; | |
8501 | ||
8502 | if (!right) | |
8503 | return left; | |
8504 | ||
e04a16fb AG |
8505 | obstack_grow (&temporary_obstack, IDENTIFIER_POINTER (left), |
8506 | IDENTIFIER_LENGTH (left)); | |
8507 | obstack_1grow (&temporary_obstack, '.'); | |
8508 | obstack_grow0 (&temporary_obstack, IDENTIFIER_POINTER (right), | |
8509 | IDENTIFIER_LENGTH (right)); | |
8510 | node = get_identifier (obstack_base (&temporary_obstack)); | |
8511 | obstack_free (&temporary_obstack, obstack_base (&temporary_obstack)); | |
8512 | QUALIFIED_P (node) = 1; | |
8513 | return node; | |
8514 | } | |
8515 | ||
8516 | /* Merge the two parts of a qualified name into LEFT. Set the | |
8517 | location information of the resulting node to LOCATION, usually | |
8518 | inherited from the location information of the `.' operator. */ | |
8519 | ||
8520 | static tree | |
8521 | make_qualified_name (left, right, location) | |
8522 | tree left, right; | |
8523 | int location; | |
8524 | { | |
bc3ca41b PB |
8525 | #ifdef USE_COMPONENT_REF |
8526 | tree node = build (COMPONENT_REF, NULL_TREE, left, right); | |
8527 | EXPR_WFL_LINECOL (node) = location; | |
8528 | return node; | |
8529 | #else | |
e04a16fb AG |
8530 | tree left_id = EXPR_WFL_NODE (left); |
8531 | tree right_id = EXPR_WFL_NODE (right); | |
8532 | tree wfl, merge; | |
8533 | ||
8534 | merge = merge_qualified_name (left_id, right_id); | |
8535 | ||
8536 | /* Left wasn't qualified and is now qualified */ | |
8537 | if (!QUALIFIED_P (left_id)) | |
8538 | { | |
8539 | tree wfl = build_expr_wfl (left_id, ctxp->filename, 0, 0); | |
8540 | EXPR_WFL_LINECOL (wfl) = EXPR_WFL_LINECOL (left); | |
8541 | EXPR_WFL_QUALIFICATION (left) = build_tree_list (wfl, NULL_TREE); | |
8542 | } | |
8543 | ||
8544 | wfl = build_expr_wfl (right_id, ctxp->filename, 0, 0); | |
8545 | EXPR_WFL_LINECOL (wfl) = location; | |
8546 | chainon (EXPR_WFL_QUALIFICATION (left), build_tree_list (wfl, NULL_TREE)); | |
8547 | ||
8548 | EXPR_WFL_NODE (left) = merge; | |
8549 | return left; | |
bc3ca41b | 8550 | #endif |
e04a16fb AG |
8551 | } |
8552 | ||
8553 | /* Extract the last identifier component of the qualified in WFL. The | |
8554 | last identifier is removed from the linked list */ | |
8555 | ||
8556 | static tree | |
8557 | cut_identifier_in_qualified (wfl) | |
8558 | tree wfl; | |
8559 | { | |
8560 | tree q; | |
8561 | tree previous = NULL_TREE; | |
8562 | for (q = EXPR_WFL_QUALIFICATION (wfl); ; previous = q, q = TREE_CHAIN (q)) | |
8563 | if (!TREE_CHAIN (q)) | |
8564 | { | |
8565 | if (!previous) | |
781b0558 | 8566 | fatal ("Operating on a non qualified qualified WFL - cut_identifier_in_qualified"); |
e04a16fb AG |
8567 | TREE_CHAIN (previous) = NULL_TREE; |
8568 | return TREE_PURPOSE (q); | |
8569 | } | |
8570 | } | |
8571 | ||
8572 | /* Resolve the expression name NAME. Return its decl. */ | |
8573 | ||
8574 | static tree | |
5e942c50 | 8575 | resolve_expression_name (id, orig) |
e04a16fb | 8576 | tree id; |
5e942c50 | 8577 | tree *orig; |
e04a16fb AG |
8578 | { |
8579 | tree name = EXPR_WFL_NODE (id); | |
8580 | tree decl; | |
8581 | ||
8582 | /* 6.5.5.1: Simple expression names */ | |
8583 | if (!PRIMARY_P (id) && !QUALIFIED_P (name)) | |
8584 | { | |
8585 | /* 15.13.1: NAME can appear within the scope of a local variable | |
8586 | declaration */ | |
8587 | if ((decl = IDENTIFIER_LOCAL_VALUE (name))) | |
8588 | return decl; | |
8589 | ||
8590 | /* 15.13.1: NAME can appear within a class declaration */ | |
8591 | else | |
8592 | { | |
8593 | decl = lookup_field_wrapper (current_class, name); | |
8594 | if (decl) | |
8595 | { | |
c2952b01 | 8596 | tree access = NULL_TREE; |
e04a16fb | 8597 | int fs = FIELD_STATIC (decl); |
f2760b27 APB |
8598 | |
8599 | /* If we're accessing an outer scope local alias, make | |
8600 | sure we change the name of the field we're going to | |
8601 | build access to. */ | |
8602 | if (FIELD_LOCAL_ALIAS_USED (decl)) | |
8603 | name = DECL_NAME (decl); | |
8604 | ||
e04a16fb AG |
8605 | /* Instance variable (8.3.1.1) can't appear within |
8606 | static method, static initializer or initializer for | |
8607 | a static variable. */ | |
8608 | if (!fs && METHOD_STATIC (current_function_decl)) | |
8609 | { | |
7f10c2e2 | 8610 | static_ref_err (id, name, current_class); |
e04a16fb AG |
8611 | return error_mark_node; |
8612 | } | |
22eed1e6 APB |
8613 | /* Instance variables can't appear as an argument of |
8614 | an explicit constructor invocation */ | |
8615 | if (!fs && ctxp->explicit_constructor_p) | |
8616 | { | |
8617 | parse_error_context | |
781b0558 | 8618 | (id, "Can't reference `%s' before the superclass constructor has been called", IDENTIFIER_POINTER (name)); |
22eed1e6 APB |
8619 | return error_mark_node; |
8620 | } | |
5e942c50 | 8621 | |
c2952b01 APB |
8622 | /* If we're processing an inner class and we're trying |
8623 | to access a field belonging to an outer class, build | |
8624 | the access to the field */ | |
8625 | if (!fs && outer_field_access_p (current_class, decl)) | |
8626 | return build_outer_field_access (id, decl); | |
8627 | ||
5e942c50 | 8628 | /* Otherwise build what it takes to access the field */ |
c2952b01 APB |
8629 | access = build_field_ref ((fs ? NULL_TREE : current_this), |
8630 | DECL_CONTEXT (decl), name); | |
e8fc7396 | 8631 | if (fs && !flag_emit_class_files && !flag_emit_xref) |
c2952b01 | 8632 | access = build_class_init (DECL_CONTEXT (access), access); |
5e942c50 APB |
8633 | /* We may be asked to save the real field access node */ |
8634 | if (orig) | |
c2952b01 | 8635 | *orig = access; |
5e942c50 | 8636 | /* And we return what we got */ |
c2952b01 | 8637 | return access; |
e04a16fb AG |
8638 | } |
8639 | /* Fall down to error report on undefined variable */ | |
8640 | } | |
8641 | } | |
8642 | /* 6.5.5.2 Qualified Expression Names */ | |
8643 | else | |
8644 | { | |
5e942c50 APB |
8645 | if (orig) |
8646 | *orig = NULL_TREE; | |
e04a16fb AG |
8647 | qualify_ambiguous_name (id); |
8648 | /* 15.10.1 Field Access Using a Primary and/or Expression Name */ | |
8649 | /* 15.10.2: Accessing Superclass Members using super */ | |
98f3c1db | 8650 | return resolve_field_access (id, orig, NULL); |
e04a16fb AG |
8651 | } |
8652 | ||
8653 | /* We've got an error here */ | |
8654 | parse_error_context (id, "Undefined variable `%s'", | |
8655 | IDENTIFIER_POINTER (name)); | |
8656 | ||
8657 | return error_mark_node; | |
8658 | } | |
8659 | ||
7f10c2e2 APB |
8660 | static void |
8661 | static_ref_err (wfl, field_id, class_type) | |
8662 | tree wfl, field_id, class_type; | |
8663 | { | |
8664 | parse_error_context | |
8665 | (wfl, | |
8666 | "Can't make a static reference to nonstatic variable `%s' in class `%s'", | |
8667 | IDENTIFIER_POINTER (field_id), | |
8668 | IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (class_type)))); | |
8669 | } | |
8670 | ||
e04a16fb AG |
8671 | /* 15.10.1 Field Acess Using a Primary and/or Expression Name. |
8672 | We return something suitable to generate the field access. We also | |
8673 | return the field decl in FIELD_DECL and its type in FIELD_TYPE. If | |
8674 | recipient's address can be null. */ | |
8675 | ||
8676 | static tree | |
8677 | resolve_field_access (qual_wfl, field_decl, field_type) | |
8678 | tree qual_wfl; | |
8679 | tree *field_decl, *field_type; | |
8680 | { | |
8681 | int is_static = 0; | |
8682 | tree field_ref; | |
8683 | tree decl, where_found, type_found; | |
8684 | ||
8685 | if (resolve_qualified_expression_name (qual_wfl, &decl, | |
8686 | &where_found, &type_found)) | |
8687 | return error_mark_node; | |
8688 | ||
8689 | /* Resolve the LENGTH field of an array here */ | |
9a7ab4b3 APB |
8690 | if (DECL_P (decl) && DECL_NAME (decl) == length_identifier_node |
8691 | && TYPE_ARRAY_P (type_found) | |
e8fc7396 | 8692 | && ! flag_emit_class_files && ! flag_emit_xref) |
e04a16fb AG |
8693 | { |
8694 | tree length = build_java_array_length_access (where_found); | |
8695 | field_ref = | |
8696 | build_java_arraynull_check (type_found, length, int_type_node); | |
611a4b87 APB |
8697 | |
8698 | /* In case we're dealing with a static array, we need to | |
8699 | initialize its class before the array length can be fetched. | |
8700 | It's also a good time to create a DECL_RTL for the field if | |
8701 | none already exists, otherwise if the field was declared in a | |
8702 | class found in an external file and hasn't been (and won't | |
8703 | be) accessed for its value, none will be created. */ | |
8704 | if (TREE_CODE (where_found) == VAR_DECL && FIELD_STATIC (where_found)) | |
8705 | { | |
8706 | build_static_field_ref (where_found); | |
8707 | field_ref = build_class_init (DECL_CONTEXT (where_found), field_ref); | |
8708 | } | |
e04a16fb AG |
8709 | } |
8710 | /* We might have been trying to resolve field.method(). In which | |
8711 | case, the resolution is over and decl is the answer */ | |
34f4db93 | 8712 | else if (JDECL_P (decl) && IDENTIFIER_LOCAL_VALUE (DECL_NAME (decl)) == decl) |
e04a16fb | 8713 | field_ref = decl; |
34f4db93 | 8714 | else if (JDECL_P (decl)) |
e04a16fb | 8715 | { |
5e942c50 APB |
8716 | int static_final_found = 0; |
8717 | if (!type_found) | |
8718 | type_found = DECL_CONTEXT (decl); | |
34f4db93 | 8719 | is_static = JDECL_P (decl) && FIELD_STATIC (decl); |
5e942c50 APB |
8720 | if (FIELD_FINAL (decl) |
8721 | && JPRIMITIVE_TYPE_P (TREE_TYPE (decl)) | |
7525cc04 | 8722 | && DECL_INITIAL (decl)) |
5e942c50 | 8723 | { |
0f145be8 | 8724 | field_ref = java_complete_tree (DECL_INITIAL (decl)); |
5e942c50 APB |
8725 | static_final_found = 1; |
8726 | } | |
8727 | else | |
7f10c2e2 APB |
8728 | field_ref = build_field_ref ((is_static && !flag_emit_xref? |
8729 | NULL_TREE : where_found), | |
5e942c50 | 8730 | type_found, DECL_NAME (decl)); |
e04a16fb AG |
8731 | if (field_ref == error_mark_node) |
8732 | return error_mark_node; | |
e8fc7396 APB |
8733 | if (is_static && !static_final_found |
8734 | && !flag_emit_class_files && !flag_emit_xref) | |
40aaba2b | 8735 | field_ref = build_class_init (DECL_CONTEXT (decl), field_ref); |
e04a16fb AG |
8736 | } |
8737 | else | |
8738 | field_ref = decl; | |
8739 | ||
8740 | if (field_decl) | |
8741 | *field_decl = decl; | |
8742 | if (field_type) | |
c877974e APB |
8743 | *field_type = (QUAL_DECL_TYPE (decl) ? |
8744 | QUAL_DECL_TYPE (decl) : TREE_TYPE (decl)); | |
e04a16fb AG |
8745 | return field_ref; |
8746 | } | |
8747 | ||
e28cd97b APB |
8748 | /* If NODE is an access to f static field, strip out the class |
8749 | initialization part and return the field decl, otherwise, return | |
8750 | NODE. */ | |
8751 | ||
8752 | static tree | |
8753 | strip_out_static_field_access_decl (node) | |
8754 | tree node; | |
8755 | { | |
8756 | if (TREE_CODE (node) == COMPOUND_EXPR) | |
8757 | { | |
8758 | tree op1 = TREE_OPERAND (node, 1); | |
8759 | if (TREE_CODE (op1) == COMPOUND_EXPR) | |
8760 | { | |
8761 | tree call = TREE_OPERAND (op1, 0); | |
8762 | if (TREE_CODE (call) == CALL_EXPR | |
8763 | && TREE_CODE (TREE_OPERAND (call, 0)) == ADDR_EXPR | |
8764 | && TREE_OPERAND (TREE_OPERAND (call, 0), 0) | |
8765 | == soft_initclass_node) | |
8766 | return TREE_OPERAND (op1, 1); | |
8767 | } | |
2f11d407 TT |
8768 | else if (JDECL_P (op1)) |
8769 | return op1; | |
e28cd97b APB |
8770 | } |
8771 | return node; | |
8772 | } | |
8773 | ||
e04a16fb AG |
8774 | /* 6.5.5.2: Qualified Expression Names */ |
8775 | ||
8776 | static int | |
8777 | resolve_qualified_expression_name (wfl, found_decl, where_found, type_found) | |
8778 | tree wfl; | |
8779 | tree *found_decl, *type_found, *where_found; | |
8780 | { | |
8781 | int from_type = 0; /* Field search initiated from a type */ | |
c2952b01 | 8782 | int from_super = 0, from_cast = 0, from_qualified_this = 0; |
e04a16fb AG |
8783 | int previous_call_static = 0; |
8784 | int is_static; | |
8785 | tree decl = NULL_TREE, type = NULL_TREE, q; | |
c2952b01 APB |
8786 | /* For certain for of inner class instantiation */ |
8787 | tree saved_current, saved_this; | |
8788 | #define RESTORE_THIS_AND_CURRENT_CLASS \ | |
8789 | { current_class = saved_current; current_this = saved_this;} | |
8790 | ||
c877974e | 8791 | *type_found = *where_found = NULL_TREE; |
e04a16fb AG |
8792 | |
8793 | for (q = EXPR_WFL_QUALIFICATION (wfl); q; q = TREE_CHAIN (q)) | |
8794 | { | |
8795 | tree qual_wfl = QUAL_WFL (q); | |
7705e9db APB |
8796 | tree ret_decl; /* for EH checking */ |
8797 | int location; /* for EH checking */ | |
e04a16fb AG |
8798 | |
8799 | /* 15.10.1 Field Access Using a Primary */ | |
e04a16fb AG |
8800 | switch (TREE_CODE (qual_wfl)) |
8801 | { | |
8802 | case CALL_EXPR: | |
b67d701b | 8803 | case NEW_CLASS_EXPR: |
e04a16fb AG |
8804 | /* If the access to the function call is a non static field, |
8805 | build the code to access it. */ | |
34f4db93 | 8806 | if (JDECL_P (decl) && !FIELD_STATIC (decl)) |
e04a16fb | 8807 | { |
ac825856 APB |
8808 | decl = maybe_access_field (decl, *where_found, |
8809 | DECL_CONTEXT (decl)); | |
e04a16fb AG |
8810 | if (decl == error_mark_node) |
8811 | return 1; | |
8812 | } | |
c2952b01 | 8813 | |
e04a16fb AG |
8814 | /* And code for the function call */ |
8815 | if (complete_function_arguments (qual_wfl)) | |
8816 | return 1; | |
c2952b01 APB |
8817 | |
8818 | /* We might have to setup a new current class and a new this | |
8819 | for the search of an inner class, relative to the type of | |
8820 | a expression resolved as `decl'. The current values are | |
8821 | saved and restored shortly after */ | |
8822 | saved_current = current_class; | |
8823 | saved_this = current_this; | |
8824 | if (decl && TREE_CODE (qual_wfl) == NEW_CLASS_EXPR) | |
8825 | { | |
8826 | current_class = type; | |
8827 | current_this = decl; | |
8828 | } | |
8829 | ||
89e09b9a PB |
8830 | if (from_super && TREE_CODE (qual_wfl) == CALL_EXPR) |
8831 | CALL_USING_SUPER (qual_wfl) = 1; | |
7705e9db APB |
8832 | location = (TREE_CODE (qual_wfl) == CALL_EXPR ? |
8833 | EXPR_WFL_LINECOL (TREE_OPERAND (qual_wfl, 0)) : 0); | |
8834 | *where_found = patch_method_invocation (qual_wfl, decl, type, | |
8835 | &is_static, &ret_decl); | |
e04a16fb | 8836 | if (*where_found == error_mark_node) |
c2952b01 APB |
8837 | { |
8838 | RESTORE_THIS_AND_CURRENT_CLASS; | |
8839 | return 1; | |
8840 | } | |
e04a16fb AG |
8841 | *type_found = type = QUAL_DECL_TYPE (*where_found); |
8842 | ||
c2952b01 APB |
8843 | /* If we're creating an inner class instance, check for that |
8844 | an enclosing instance is in scope */ | |
8845 | if (TREE_CODE (qual_wfl) == NEW_CLASS_EXPR | |
165f37bc | 8846 | && INNER_ENCLOSING_SCOPE_CHECK (type)) |
c2952b01 APB |
8847 | { |
8848 | parse_error_context | |
165f37bc APB |
8849 | (qual_wfl, "No enclosing instance for inner class `%s' is in scope%s", |
8850 | lang_printable_name (type, 0), | |
8851 | (!current_this ? "" : | |
8852 | "; an explicit one must be provided when creating this inner class")); | |
c2952b01 APB |
8853 | RESTORE_THIS_AND_CURRENT_CLASS; |
8854 | return 1; | |
8855 | } | |
8856 | ||
8857 | /* In case we had to change then to resolve a inner class | |
8858 | instantiation using a primary qualified by a `new' */ | |
8859 | RESTORE_THIS_AND_CURRENT_CLASS; | |
8860 | ||
7705e9db APB |
8861 | /* EH check */ |
8862 | if (location) | |
8863 | check_thrown_exceptions (location, ret_decl); | |
8864 | ||
e04a16fb AG |
8865 | /* If the previous call was static and this one is too, |
8866 | build a compound expression to hold the two (because in | |
8867 | that case, previous function calls aren't transported as | |
8868 | forcoming function's argument. */ | |
8869 | if (previous_call_static && is_static) | |
8870 | { | |
8871 | decl = build (COMPOUND_EXPR, type, decl, *where_found); | |
8872 | TREE_SIDE_EFFECTS (decl) = 1; | |
8873 | } | |
8874 | else | |
8875 | { | |
8876 | previous_call_static = is_static; | |
8877 | decl = *where_found; | |
8878 | } | |
c2952b01 | 8879 | from_type = 0; |
e04a16fb AG |
8880 | continue; |
8881 | ||
d8fccff5 | 8882 | case NEW_ARRAY_EXPR: |
c2952b01 | 8883 | case NEW_ANONYMOUS_ARRAY_EXPR: |
d8fccff5 APB |
8884 | *where_found = decl = java_complete_tree (qual_wfl); |
8885 | if (decl == error_mark_node) | |
8886 | return 1; | |
8887 | *type_found = type = QUAL_DECL_TYPE (decl); | |
8888 | CLASS_LOADED_P (type) = 1; | |
8889 | continue; | |
8890 | ||
e04a16fb AG |
8891 | case CONVERT_EXPR: |
8892 | *where_found = decl = java_complete_tree (qual_wfl); | |
8893 | if (decl == error_mark_node) | |
8894 | return 1; | |
8895 | *type_found = type = QUAL_DECL_TYPE (decl); | |
8896 | from_cast = 1; | |
8897 | continue; | |
8898 | ||
22eed1e6 | 8899 | case CONDITIONAL_EXPR: |
5e942c50 | 8900 | case STRING_CST: |
ac22f9cb | 8901 | case MODIFY_EXPR: |
22eed1e6 APB |
8902 | *where_found = decl = java_complete_tree (qual_wfl); |
8903 | if (decl == error_mark_node) | |
8904 | return 1; | |
8905 | *type_found = type = QUAL_DECL_TYPE (decl); | |
8906 | continue; | |
8907 | ||
e04a16fb AG |
8908 | case ARRAY_REF: |
8909 | /* If the access to the function call is a non static field, | |
8910 | build the code to access it. */ | |
34f4db93 | 8911 | if (JDECL_P (decl) && !FIELD_STATIC (decl)) |
e04a16fb AG |
8912 | { |
8913 | decl = maybe_access_field (decl, *where_found, type); | |
8914 | if (decl == error_mark_node) | |
8915 | return 1; | |
8916 | } | |
8917 | /* And code for the array reference expression */ | |
8918 | decl = java_complete_tree (qual_wfl); | |
8919 | if (decl == error_mark_node) | |
8920 | return 1; | |
8921 | type = QUAL_DECL_TYPE (decl); | |
8922 | continue; | |
0a2138e2 | 8923 | |
37feda7d APB |
8924 | case PLUS_EXPR: |
8925 | if ((decl = java_complete_tree (qual_wfl)) == error_mark_node) | |
8926 | return 1; | |
8927 | if ((type = patch_string (decl))) | |
8928 | decl = type; | |
8929 | *where_found = QUAL_RESOLUTION (q) = decl; | |
8930 | *type_found = type = TREE_TYPE (decl); | |
8931 | break; | |
8932 | ||
165f37bc APB |
8933 | case CLASS_LITERAL: |
8934 | if ((decl = java_complete_tree (qual_wfl)) == error_mark_node) | |
8935 | return 1; | |
8936 | *where_found = QUAL_RESOLUTION (q) = decl; | |
8937 | *type_found = type = TREE_TYPE (decl); | |
8938 | break; | |
8939 | ||
0a2138e2 APB |
8940 | default: |
8941 | /* Fix for -Wall Just go to the next statement. Don't | |
8942 | continue */ | |
a3f406ce | 8943 | break; |
e04a16fb AG |
8944 | } |
8945 | ||
8946 | /* If we fall here, we weren't processing a (static) function call. */ | |
8947 | previous_call_static = 0; | |
8948 | ||
8949 | /* It can be the keyword THIS */ | |
8950 | if (EXPR_WFL_NODE (qual_wfl) == this_identifier_node) | |
8951 | { | |
8952 | if (!current_this) | |
8953 | { | |
8954 | parse_error_context | |
8955 | (wfl, "Keyword `this' used outside allowed context"); | |
8956 | return 1; | |
8957 | } | |
f63991a8 APB |
8958 | if (ctxp->explicit_constructor_p) |
8959 | { | |
781b0558 | 8960 | parse_error_context (wfl, "Can't reference `this' before the superclass constructor has been called"); |
f63991a8 APB |
8961 | return 1; |
8962 | } | |
e04a16fb | 8963 | /* We have to generate code for intermediate acess */ |
c2952b01 APB |
8964 | if (!from_type || TREE_TYPE (TREE_TYPE (current_this)) == type) |
8965 | { | |
8966 | *where_found = decl = current_this; | |
8967 | *type_found = type = QUAL_DECL_TYPE (decl); | |
8968 | } | |
8969 | /* We're trying to access the this from somewhere else... */ | |
8970 | else | |
8971 | { | |
8972 | *where_found = decl = build_current_thisn (type); | |
8973 | from_qualified_this = 1; | |
8974 | } | |
8975 | ||
8976 | from_type = 0; | |
e04a16fb AG |
8977 | continue; |
8978 | } | |
8979 | ||
8980 | /* 15.10.2 Accessing Superclass Members using SUPER */ | |
8981 | if (EXPR_WFL_NODE (qual_wfl) == super_identifier_node) | |
8982 | { | |
8983 | tree node; | |
8984 | /* Check on the restricted use of SUPER */ | |
8985 | if (METHOD_STATIC (current_function_decl) | |
8986 | || current_class == object_type_node) | |
8987 | { | |
8988 | parse_error_context | |
8989 | (wfl, "Keyword `super' used outside allowed context"); | |
8990 | return 1; | |
8991 | } | |
8992 | /* Otherwise, treat SUPER as (SUPER_CLASS)THIS */ | |
8993 | node = build_cast (EXPR_WFL_LINECOL (qual_wfl), | |
8994 | CLASSTYPE_SUPER (current_class), | |
8995 | build_this (EXPR_WFL_LINECOL (qual_wfl))); | |
8996 | *where_found = decl = java_complete_tree (node); | |
22eed1e6 APB |
8997 | if (decl == error_mark_node) |
8998 | return 1; | |
e04a16fb AG |
8999 | *type_found = type = QUAL_DECL_TYPE (decl); |
9000 | from_super = from_type = 1; | |
9001 | continue; | |
9002 | } | |
9003 | ||
9004 | /* 15.13.1: Can't search for field name in packages, so we | |
9005 | assume a variable/class name was meant. */ | |
9006 | if (RESOLVE_PACKAGE_NAME_P (qual_wfl)) | |
9007 | { | |
5e942c50 APB |
9008 | tree name = resolve_package (wfl, &q); |
9009 | if (name) | |
9010 | { | |
c2952b01 | 9011 | tree list; |
5e942c50 | 9012 | *where_found = decl = resolve_no_layout (name, qual_wfl); |
6b48deee | 9013 | /* We want to be absolutely sure that the class is laid |
5e942c50 APB |
9014 | out. We're going to search something inside it. */ |
9015 | *type_found = type = TREE_TYPE (decl); | |
9016 | layout_class (type); | |
9017 | from_type = 1; | |
c2952b01 | 9018 | |
dde1da72 APB |
9019 | /* Fix them all the way down, if any are left. */ |
9020 | if (q) | |
c2952b01 | 9021 | { |
dde1da72 APB |
9022 | list = TREE_CHAIN (q); |
9023 | while (list) | |
9024 | { | |
9025 | RESOLVE_EXPRESSION_NAME_P (QUAL_WFL (list)) = 1; | |
9026 | RESOLVE_PACKAGE_NAME_P (QUAL_WFL (list)) = 0; | |
9027 | list = TREE_CHAIN (list); | |
9028 | } | |
c2952b01 | 9029 | } |
5e942c50 | 9030 | } |
e04a16fb | 9031 | else |
5e942c50 APB |
9032 | { |
9033 | if (from_super || from_cast) | |
9034 | parse_error_context | |
9035 | ((from_cast ? qual_wfl : wfl), | |
9036 | "No variable `%s' defined in class `%s'", | |
9037 | IDENTIFIER_POINTER (EXPR_WFL_NODE (qual_wfl)), | |
9038 | lang_printable_name (type, 0)); | |
9039 | else | |
9040 | parse_error_context | |
9041 | (qual_wfl, "Undefined variable or class name: `%s'", | |
9042 | IDENTIFIER_POINTER (EXPR_WFL_NODE (qual_wfl))); | |
9043 | return 1; | |
9044 | } | |
e04a16fb AG |
9045 | } |
9046 | ||
9047 | /* We have a type name. It's been already resolved when the | |
9048 | expression was qualified. */ | |
9049 | else if (RESOLVE_TYPE_NAME_P (qual_wfl)) | |
9050 | { | |
9051 | if (!(decl = QUAL_RESOLUTION (q))) | |
9052 | return 1; /* Error reported already */ | |
9053 | ||
c2952b01 APB |
9054 | /* Sneak preview. If next we see a `new', we're facing a |
9055 | qualification with resulted in a type being selected | |
9056 | instead of a field. Report the error */ | |
9057 | if(TREE_CHAIN (q) | |
9058 | && TREE_CODE (TREE_PURPOSE (TREE_CHAIN (q))) == NEW_CLASS_EXPR) | |
9059 | { | |
9060 | parse_error_context (qual_wfl, "Undefined variable `%s'", | |
9061 | IDENTIFIER_POINTER (EXPR_WFL_NODE (wfl))); | |
9062 | return 1; | |
9063 | } | |
9064 | ||
e04a16fb AG |
9065 | if (not_accessible_p (TREE_TYPE (decl), decl, 0)) |
9066 | { | |
9067 | parse_error_context | |
9068 | (qual_wfl, "Can't access %s field `%s.%s' from `%s'", | |
9069 | java_accstring_lookup (get_access_flags_from_decl (decl)), | |
2aa11e97 | 9070 | GET_TYPE_NAME (type), |
e04a16fb AG |
9071 | IDENTIFIER_POINTER (DECL_NAME (decl)), |
9072 | IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (current_class)))); | |
9073 | return 1; | |
9074 | } | |
5e942c50 | 9075 | check_deprecation (qual_wfl, decl); |
c2952b01 | 9076 | |
e04a16fb AG |
9077 | type = TREE_TYPE (decl); |
9078 | from_type = 1; | |
9079 | } | |
9080 | /* We resolve and expression name */ | |
9081 | else | |
9082 | { | |
cd531a2e | 9083 | tree field_decl = NULL_TREE; |
e04a16fb AG |
9084 | |
9085 | /* If there exists an early resolution, use it. That occurs | |
9086 | only once and we know that there are more things to | |
9087 | come. Don't do that when processing something after SUPER | |
9088 | (we need more thing to be put in place below */ | |
9089 | if (!from_super && QUAL_RESOLUTION (q)) | |
b67d701b PB |
9090 | { |
9091 | decl = QUAL_RESOLUTION (q); | |
c877974e | 9092 | if (!type) |
5e942c50 | 9093 | { |
7f10c2e2 APB |
9094 | if (TREE_CODE (decl) == FIELD_DECL && !FIELD_STATIC (decl)) |
9095 | { | |
9096 | if (current_this) | |
9097 | *where_found = current_this; | |
9098 | else | |
9099 | { | |
9100 | static_ref_err (qual_wfl, DECL_NAME (decl), | |
9101 | current_class); | |
9102 | return 1; | |
9103 | } | |
9104 | } | |
c877974e APB |
9105 | else |
9106 | { | |
9107 | *where_found = TREE_TYPE (decl); | |
9108 | if (TREE_CODE (*where_found) == POINTER_TYPE) | |
9109 | *where_found = TREE_TYPE (*where_found); | |
9110 | } | |
5e942c50 | 9111 | } |
b67d701b | 9112 | } |
e04a16fb AG |
9113 | |
9114 | /* We have to search for a field, knowing the type of its | |
9115 | container. The flag FROM_TYPE indicates that we resolved | |
9116 | the last member of the expression as a type name, which | |
5e942c50 APB |
9117 | means that for the resolution of this field, we'll look |
9118 | for other errors than if it was resolved as a member of | |
9119 | an other field. */ | |
e04a16fb AG |
9120 | else |
9121 | { | |
9122 | int is_static; | |
5e942c50 APB |
9123 | tree field_decl_type; /* For layout */ |
9124 | ||
e04a16fb AG |
9125 | if (!from_type && !JREFERENCE_TYPE_P (type)) |
9126 | { | |
9127 | parse_error_context | |
9128 | (qual_wfl, "Attempt to reference field `%s' in `%s %s'", | |
9129 | IDENTIFIER_POINTER (EXPR_WFL_NODE (qual_wfl)), | |
0a2138e2 | 9130 | lang_printable_name (type, 0), |
e04a16fb AG |
9131 | IDENTIFIER_POINTER (DECL_NAME (field_decl))); |
9132 | return 1; | |
9133 | } | |
9134 | ||
dc0b3eff PB |
9135 | field_decl = lookup_field_wrapper (type, |
9136 | EXPR_WFL_NODE (qual_wfl)); | |
9137 | if (field_decl == NULL_TREE) | |
e04a16fb AG |
9138 | { |
9139 | parse_error_context | |
2aa11e97 | 9140 | (qual_wfl, "No variable `%s' defined in type `%s'", |
e04a16fb | 9141 | IDENTIFIER_POINTER (EXPR_WFL_NODE (qual_wfl)), |
2aa11e97 | 9142 | GET_TYPE_NAME (type)); |
e04a16fb AG |
9143 | return 1; |
9144 | } | |
dc0b3eff PB |
9145 | if (field_decl == error_mark_node) |
9146 | return 1; | |
5e942c50 APB |
9147 | |
9148 | /* Layout the type of field_decl, since we may need | |
c877974e APB |
9149 | it. Don't do primitive types or loaded classes. The |
9150 | situation of non primitive arrays may not handled | |
9151 | properly here. FIXME */ | |
5e942c50 APB |
9152 | if (TREE_CODE (TREE_TYPE (field_decl)) == POINTER_TYPE) |
9153 | field_decl_type = TREE_TYPE (TREE_TYPE (field_decl)); | |
9154 | else | |
9155 | field_decl_type = TREE_TYPE (field_decl); | |
9156 | if (!JPRIMITIVE_TYPE_P (field_decl_type) | |
c877974e APB |
9157 | && !CLASS_LOADED_P (field_decl_type) |
9158 | && !TYPE_ARRAY_P (field_decl_type)) | |
9159 | resolve_and_layout (field_decl_type, NULL_TREE); | |
9160 | if (TYPE_ARRAY_P (field_decl_type)) | |
9161 | CLASS_LOADED_P (field_decl_type) = 1; | |
e04a16fb AG |
9162 | |
9163 | /* Check on accessibility here */ | |
9164 | if (not_accessible_p (type, field_decl, from_super)) | |
9165 | { | |
9166 | parse_error_context | |
9167 | (qual_wfl, | |
9168 | "Can't access %s field `%s.%s' from `%s'", | |
9169 | java_accstring_lookup | |
9170 | (get_access_flags_from_decl (field_decl)), | |
2aa11e97 | 9171 | GET_TYPE_NAME (type), |
e04a16fb AG |
9172 | IDENTIFIER_POINTER (DECL_NAME (field_decl)), |
9173 | IDENTIFIER_POINTER | |
9174 | (DECL_NAME (TYPE_NAME (current_class)))); | |
9175 | return 1; | |
9176 | } | |
5e942c50 | 9177 | check_deprecation (qual_wfl, field_decl); |
e04a16fb AG |
9178 | |
9179 | /* There are things to check when fields are accessed | |
9180 | from type. There are no restrictions on a static | |
9181 | declaration of the field when it is accessed from an | |
9182 | interface */ | |
9183 | is_static = FIELD_STATIC (field_decl); | |
9184 | if (!from_super && from_type | |
c2952b01 APB |
9185 | && !TYPE_INTERFACE_P (type) |
9186 | && !is_static | |
9187 | && (current_function_decl | |
9188 | && METHOD_STATIC (current_function_decl))) | |
e04a16fb | 9189 | { |
7f10c2e2 | 9190 | static_ref_err (qual_wfl, EXPR_WFL_NODE (qual_wfl), type); |
e04a16fb AG |
9191 | return 1; |
9192 | } | |
9193 | from_cast = from_super = 0; | |
9194 | ||
c2952b01 APB |
9195 | /* It's an access from a type but it isn't static, we |
9196 | make it relative to `this'. */ | |
9197 | if (!is_static && from_type) | |
9198 | decl = current_this; | |
9199 | ||
5e942c50 APB |
9200 | /* If we need to generate something to get a proper |
9201 | handle on what this field is accessed from, do it | |
9202 | now. */ | |
e04a16fb AG |
9203 | if (!is_static) |
9204 | { | |
c583dd46 | 9205 | decl = maybe_access_field (decl, *where_found, *type_found); |
e04a16fb AG |
9206 | if (decl == error_mark_node) |
9207 | return 1; | |
9208 | } | |
9209 | ||
9210 | /* We want to keep the location were found it, and the type | |
9211 | we found. */ | |
9212 | *where_found = decl; | |
9213 | *type_found = type; | |
9214 | ||
c2952b01 APB |
9215 | /* Generate the correct expression for field access from |
9216 | qualified this */ | |
9217 | if (from_qualified_this) | |
9218 | { | |
9219 | field_decl = build_outer_field_access (qual_wfl, field_decl); | |
9220 | from_qualified_this = 0; | |
9221 | } | |
9222 | ||
e04a16fb AG |
9223 | /* This is the decl found and eventually the next one to |
9224 | search from */ | |
9225 | decl = field_decl; | |
9226 | } | |
e04a16fb AG |
9227 | from_type = 0; |
9228 | type = QUAL_DECL_TYPE (decl); | |
c2952b01 APB |
9229 | |
9230 | /* Sneak preview. If decl is qualified by a `new', report | |
9231 | the error here to be accurate on the peculiar construct */ | |
9232 | if (TREE_CHAIN (q) | |
9233 | && TREE_CODE (TREE_PURPOSE (TREE_CHAIN (q))) == NEW_CLASS_EXPR | |
9234 | && !JREFERENCE_TYPE_P (type)) | |
9235 | { | |
9236 | parse_error_context (qual_wfl, "Attempt to reference field `new' in a `%s'", | |
9237 | lang_printable_name (type, 0)); | |
9238 | return 1; | |
9239 | } | |
e04a16fb | 9240 | } |
dde1da72 APB |
9241 | /* `q' might have changed due to a after package resolution |
9242 | re-qualification */ | |
9243 | if (!q) | |
9244 | break; | |
e04a16fb AG |
9245 | } |
9246 | *found_decl = decl; | |
9247 | return 0; | |
9248 | } | |
9249 | ||
9250 | /* 6.6 Qualified name and access control. Returns 1 if MEMBER (a decl) | |
9251 | can't be accessed from REFERENCE (a record type). */ | |
9252 | ||
be245ac0 KG |
9253 | static int |
9254 | not_accessible_p (reference, member, from_super) | |
e04a16fb AG |
9255 | tree reference, member; |
9256 | int from_super; | |
9257 | { | |
9258 | int access_flag = get_access_flags_from_decl (member); | |
9259 | ||
9260 | /* Access always granted for members declared public */ | |
9261 | if (access_flag & ACC_PUBLIC) | |
9262 | return 0; | |
9263 | ||
9264 | /* Check access on protected members */ | |
9265 | if (access_flag & ACC_PROTECTED) | |
9266 | { | |
9267 | /* Access granted if it occurs from within the package | |
9268 | containing the class in which the protected member is | |
9269 | declared */ | |
9270 | if (class_in_current_package (DECL_CONTEXT (member))) | |
9271 | return 0; | |
9272 | ||
9bbc7d9f PB |
9273 | /* If accessed with the form `super.member', then access is granted */ |
9274 | if (from_super) | |
9275 | return 0; | |
e04a16fb | 9276 | |
9bbc7d9f PB |
9277 | /* Otherwise, access is granted if occuring from the class where |
9278 | member is declared or a subclass of it */ | |
473e7b07 | 9279 | if (inherits_from_p (reference, DECL_CONTEXT (member))) |
9bbc7d9f | 9280 | return 0; |
e04a16fb AG |
9281 | return 1; |
9282 | } | |
9283 | ||
9284 | /* Check access on private members. Access is granted only if it | |
473e7b07 TT |
9285 | occurs from within the class in which it is declared. Exceptions |
9286 | are accesses from inner-classes. This section is probably not | |
c2952b01 | 9287 | complete. FIXME */ |
e04a16fb | 9288 | if (access_flag & ACC_PRIVATE) |
c2952b01 APB |
9289 | return (current_class == DECL_CONTEXT (member) ? 0 : |
9290 | (INNER_CLASS_TYPE_P (current_class) ? 0 : 1)); | |
e04a16fb AG |
9291 | |
9292 | /* Default access are permitted only when occuring within the | |
9293 | package in which the type (REFERENCE) is declared. In other words, | |
9294 | REFERENCE is defined in the current package */ | |
9295 | if (ctxp->package) | |
9296 | return !class_in_current_package (reference); | |
473e7b07 | 9297 | |
e04a16fb AG |
9298 | /* Otherwise, access is granted */ |
9299 | return 0; | |
9300 | } | |
9301 | ||
5e942c50 APB |
9302 | /* Test deprecated decl access. */ |
9303 | static void | |
9304 | check_deprecation (wfl, decl) | |
9305 | tree wfl, decl; | |
9306 | { | |
49f48c71 | 9307 | const char *file = DECL_SOURCE_FILE (decl); |
5e942c50 APB |
9308 | /* Complain if the field is deprecated and the file it was defined |
9309 | in isn't compiled at the same time the file which contains its | |
9310 | use is */ | |
9311 | if (DECL_DEPRECATED (decl) | |
9312 | && !IS_A_COMMAND_LINE_FILENAME_P (get_identifier (file))) | |
9313 | { | |
9314 | char the [20]; | |
9315 | switch (TREE_CODE (decl)) | |
9316 | { | |
9317 | case FUNCTION_DECL: | |
9318 | strcpy (the, "method"); | |
9319 | break; | |
9320 | case FIELD_DECL: | |
9321 | strcpy (the, "field"); | |
9322 | break; | |
9323 | case TYPE_DECL: | |
9324 | strcpy (the, "class"); | |
9325 | break; | |
15fdcfe9 PB |
9326 | default: |
9327 | fatal ("unexpected DECL code - check_deprecation"); | |
5e942c50 APB |
9328 | } |
9329 | parse_warning_context | |
9330 | (wfl, "The %s `%s' in class `%s' has been deprecated", | |
9331 | the, lang_printable_name (decl, 0), | |
9332 | IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (DECL_CONTEXT (decl))))); | |
9333 | } | |
9334 | } | |
9335 | ||
e04a16fb AG |
9336 | /* Returns 1 if class was declared in the current package, 0 otherwise */ |
9337 | ||
9338 | static int | |
9339 | class_in_current_package (class) | |
9340 | tree class; | |
9341 | { | |
9342 | static tree cache = NULL_TREE; | |
9343 | int qualified_flag; | |
9344 | tree left; | |
9345 | ||
9346 | if (cache == class) | |
9347 | return 1; | |
9348 | ||
9349 | qualified_flag = QUALIFIED_P (DECL_NAME (TYPE_NAME (class))); | |
9350 | ||
9351 | /* If the current package is empty and the name of CLASS is | |
9352 | qualified, class isn't in the current package. If there is a | |
9353 | current package and the name of the CLASS is not qualified, class | |
9354 | isn't in the current package */ | |
0a2138e2 | 9355 | if ((!ctxp->package && qualified_flag) || (ctxp->package && !qualified_flag)) |
e04a16fb AG |
9356 | return 0; |
9357 | ||
9358 | /* If there is not package and the name of CLASS isn't qualified, | |
9359 | they belong to the same unnamed package */ | |
9360 | if (!ctxp->package && !qualified_flag) | |
9361 | return 1; | |
9362 | ||
9363 | /* Compare the left part of the name of CLASS with the package name */ | |
9364 | breakdown_qualified (&left, NULL, DECL_NAME (TYPE_NAME (class))); | |
9365 | if (ctxp->package == left) | |
9366 | { | |
9367 | cache = class; | |
9368 | return 1; | |
9369 | } | |
9370 | return 0; | |
9371 | } | |
9372 | ||
9373 | /* This function may generate code to access DECL from WHERE. This is | |
9374 | done only if certain conditions meet. */ | |
9375 | ||
9376 | static tree | |
9377 | maybe_access_field (decl, where, type) | |
9378 | tree decl, where, type; | |
9379 | { | |
5e942c50 APB |
9380 | if (TREE_CODE (decl) == FIELD_DECL && decl != current_this |
9381 | && !FIELD_STATIC (decl)) | |
e04a16fb | 9382 | decl = build_field_ref (where ? where : current_this, |
c583dd46 APB |
9383 | (type ? type : DECL_CONTEXT (decl)), |
9384 | DECL_NAME (decl)); | |
e04a16fb AG |
9385 | return decl; |
9386 | } | |
9387 | ||
15fdcfe9 | 9388 | /* Build a method invocation, by patching PATCH. If non NULL |
e04a16fb AG |
9389 | and according to the situation, PRIMARY and WHERE may be |
9390 | used. IS_STATIC is set to 1 if the invoked function is static. */ | |
9391 | ||
9392 | static tree | |
89e09b9a | 9393 | patch_method_invocation (patch, primary, where, is_static, ret_decl) |
e04a16fb AG |
9394 | tree patch, primary, where; |
9395 | int *is_static; | |
b9f7e36c | 9396 | tree *ret_decl; |
e04a16fb AG |
9397 | { |
9398 | tree wfl = TREE_OPERAND (patch, 0); | |
9399 | tree args = TREE_OPERAND (patch, 1); | |
9400 | tree name = EXPR_WFL_NODE (wfl); | |
5e942c50 | 9401 | tree list; |
22eed1e6 | 9402 | int is_static_flag = 0; |
89e09b9a | 9403 | int is_super_init = 0; |
bccaf73a | 9404 | tree this_arg = NULL_TREE; |
e04a16fb AG |
9405 | |
9406 | /* Should be overriden if everything goes well. Otherwise, if | |
9407 | something fails, it should keep this value. It stop the | |
9408 | evaluation of a bogus assignment. See java_complete_tree, | |
9409 | MODIFY_EXPR: for the reasons why we sometimes want to keep on | |
9410 | evaluating an assignment */ | |
9411 | TREE_TYPE (patch) = error_mark_node; | |
9412 | ||
9413 | /* Since lookup functions are messing with line numbers, save the | |
9414 | context now. */ | |
9415 | java_parser_context_save_global (); | |
9416 | ||
9417 | /* 15.11.1: Compile-Time Step 1: Determine Class or Interface to Search */ | |
9418 | ||
9419 | /* Resolution of qualified name, excluding constructors */ | |
9420 | if (QUALIFIED_P (name) && !CALL_CONSTRUCTOR_P (patch)) | |
9421 | { | |
dde1da72 | 9422 | tree identifier, identifier_wfl, type, resolved; |
e04a16fb AG |
9423 | /* Extract the last IDENTIFIER of the qualified |
9424 | expression. This is a wfl and we will use it's location | |
9425 | data during error report. */ | |
9426 | identifier_wfl = cut_identifier_in_qualified (wfl); | |
9427 | identifier = EXPR_WFL_NODE (identifier_wfl); | |
9428 | ||
9429 | /* Given the context, IDENTIFIER is syntactically qualified | |
9430 | as a MethodName. We need to qualify what's before */ | |
9431 | qualify_ambiguous_name (wfl); | |
dde1da72 | 9432 | resolved = resolve_field_access (wfl, NULL, NULL); |
e04a16fb | 9433 | |
dde1da72 APB |
9434 | if (resolved == error_mark_node) |
9435 | PATCH_METHOD_RETURN_ERROR (); | |
9436 | ||
9437 | type = GET_SKIP_TYPE (resolved); | |
9438 | resolve_and_layout (type, NULL_TREE); | |
6518c7b5 BM |
9439 | |
9440 | if (JPRIMITIVE_TYPE_P (type)) | |
9441 | { | |
9442 | parse_error_context | |
9443 | (identifier_wfl, | |
9444 | "Can't invoke a method on primitive type `%s'", | |
9445 | IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type)))); | |
9446 | PATCH_METHOD_RETURN_ERROR (); | |
9447 | } | |
9448 | ||
dde1da72 APB |
9449 | list = lookup_method_invoke (0, identifier_wfl, type, identifier, args); |
9450 | args = nreverse (args); | |
2c56429a | 9451 | |
e04a16fb | 9452 | /* We're resolving a call from a type */ |
dde1da72 | 9453 | if (TREE_CODE (resolved) == TYPE_DECL) |
e04a16fb | 9454 | { |
dde1da72 | 9455 | if (CLASS_INTERFACE (resolved)) |
e04a16fb AG |
9456 | { |
9457 | parse_error_context | |
781b0558 KG |
9458 | (identifier_wfl, |
9459 | "Can't make static reference to method `%s' in interface `%s'", | |
9460 | IDENTIFIER_POINTER (identifier), | |
e04a16fb | 9461 | IDENTIFIER_POINTER (name)); |
b9f7e36c | 9462 | PATCH_METHOD_RETURN_ERROR (); |
e04a16fb | 9463 | } |
e04a16fb AG |
9464 | if (list && !METHOD_STATIC (list)) |
9465 | { | |
c2e3db92 | 9466 | char *fct_name = xstrdup (lang_printable_name (list, 0)); |
e04a16fb AG |
9467 | parse_error_context |
9468 | (identifier_wfl, | |
9469 | "Can't make static reference to method `%s %s' in class `%s'", | |
0a2138e2 APB |
9470 | lang_printable_name (TREE_TYPE (TREE_TYPE (list)), 0), |
9471 | fct_name, IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type)))); | |
e04a16fb | 9472 | free (fct_name); |
b9f7e36c | 9473 | PATCH_METHOD_RETURN_ERROR (); |
e04a16fb AG |
9474 | } |
9475 | } | |
e04a16fb | 9476 | else |
dde1da72 APB |
9477 | this_arg = primary = resolved; |
9478 | ||
5e942c50 | 9479 | /* IDENTIFIER_WFL will be used to report any problem further */ |
e04a16fb AG |
9480 | wfl = identifier_wfl; |
9481 | } | |
9482 | /* Resolution of simple names, names generated after a primary: or | |
9483 | constructors */ | |
9484 | else | |
9485 | { | |
cd531a2e | 9486 | tree class_to_search = NULL_TREE; |
c2952b01 | 9487 | int lc; /* Looking for Constructor */ |
e04a16fb AG |
9488 | |
9489 | /* We search constructor in their target class */ | |
9490 | if (CALL_CONSTRUCTOR_P (patch)) | |
9491 | { | |
22eed1e6 APB |
9492 | if (TREE_CODE (patch) == NEW_CLASS_EXPR) |
9493 | class_to_search = EXPR_WFL_NODE (wfl); | |
9494 | else if (EXPR_WFL_NODE (TREE_OPERAND (patch, 0)) == | |
9495 | this_identifier_node) | |
9496 | class_to_search = NULL_TREE; | |
9497 | else if (EXPR_WFL_NODE (TREE_OPERAND (patch, 0)) == | |
9498 | super_identifier_node) | |
e04a16fb | 9499 | { |
89e09b9a | 9500 | is_super_init = 1; |
22eed1e6 APB |
9501 | if (CLASSTYPE_SUPER (current_class)) |
9502 | class_to_search = | |
9503 | DECL_NAME (TYPE_NAME (CLASSTYPE_SUPER (current_class))); | |
9504 | else | |
9505 | { | |
781b0558 | 9506 | parse_error_context (wfl, "Can't invoke super constructor on java.lang.Object"); |
22eed1e6 APB |
9507 | PATCH_METHOD_RETURN_ERROR (); |
9508 | } | |
e04a16fb | 9509 | } |
22eed1e6 APB |
9510 | |
9511 | /* Class to search is NULL if we're searching the current one */ | |
9512 | if (class_to_search) | |
e04a16fb | 9513 | { |
c2952b01 APB |
9514 | class_to_search = resolve_and_layout (class_to_search, wfl); |
9515 | ||
22eed1e6 APB |
9516 | if (!class_to_search) |
9517 | { | |
9518 | parse_error_context | |
9519 | (wfl, "Class `%s' not found in type declaration", | |
9520 | IDENTIFIER_POINTER (EXPR_WFL_NODE (wfl))); | |
9521 | PATCH_METHOD_RETURN_ERROR (); | |
9522 | } | |
9523 | ||
5e942c50 APB |
9524 | /* Can't instantiate an abstract class, but we can |
9525 | invoke it's constructor. It's use within the `new' | |
9526 | context is denied here. */ | |
9527 | if (CLASS_ABSTRACT (class_to_search) | |
9528 | && TREE_CODE (patch) == NEW_CLASS_EXPR) | |
22eed1e6 APB |
9529 | { |
9530 | parse_error_context | |
781b0558 KG |
9531 | (wfl, "Class `%s' is an abstract class. It can't be instantiated", |
9532 | IDENTIFIER_POINTER (EXPR_WFL_NODE (wfl))); | |
22eed1e6 APB |
9533 | PATCH_METHOD_RETURN_ERROR (); |
9534 | } | |
c2952b01 | 9535 | |
22eed1e6 | 9536 | class_to_search = TREE_TYPE (class_to_search); |
e04a16fb | 9537 | } |
22eed1e6 APB |
9538 | else |
9539 | class_to_search = current_class; | |
e04a16fb AG |
9540 | lc = 1; |
9541 | } | |
9542 | /* This is a regular search in the local class, unless an | |
9543 | alternate class is specified. */ | |
9544 | else | |
9545 | { | |
9546 | class_to_search = (where ? where : current_class); | |
9547 | lc = 0; | |
9548 | } | |
c2952b01 | 9549 | |
e04a16fb AG |
9550 | /* NAME is a simple identifier or comes from a primary. Search |
9551 | in the class whose declaration contain the method being | |
9552 | invoked. */ | |
c877974e | 9553 | resolve_and_layout (class_to_search, NULL_TREE); |
e04a16fb | 9554 | |
c2952b01 | 9555 | list = lookup_method_invoke (lc, wfl, class_to_search, name, args); |
e04a16fb AG |
9556 | /* Don't continue if no method were found, as the next statement |
9557 | can't be executed then. */ | |
b9f7e36c APB |
9558 | if (!list) |
9559 | PATCH_METHOD_RETURN_ERROR (); | |
e04a16fb AG |
9560 | |
9561 | /* Check for static reference if non static methods */ | |
9562 | if (check_for_static_method_reference (wfl, patch, list, | |
9563 | class_to_search, primary)) | |
b9f7e36c | 9564 | PATCH_METHOD_RETURN_ERROR (); |
e04a16fb | 9565 | |
165f37bc APB |
9566 | /* Check for inner classes creation from illegal contexts */ |
9567 | if (lc && (INNER_CLASS_TYPE_P (class_to_search) | |
9568 | && !CLASS_STATIC (TYPE_NAME (class_to_search))) | |
9569 | && INNER_ENCLOSING_SCOPE_CHECK (class_to_search)) | |
9570 | { | |
9571 | parse_error_context | |
9572 | (wfl, "No enclosing instance for inner class `%s' is in scope%s", | |
9573 | lang_printable_name (class_to_search, 0), | |
9574 | (!current_this ? "" : | |
9575 | "; an explicit one must be provided when creating this inner class")); | |
9576 | PATCH_METHOD_RETURN_ERROR (); | |
9577 | } | |
9578 | ||
22eed1e6 APB |
9579 | /* Non static methods are called with the current object extra |
9580 | argument. If patch a `new TYPE()', the argument is the value | |
9581 | returned by the object allocator. If method is resolved as a | |
9582 | primary, use the primary otherwise use the current THIS. */ | |
b9f7e36c | 9583 | args = nreverse (args); |
bccaf73a | 9584 | if (TREE_CODE (patch) != NEW_CLASS_EXPR) |
c2952b01 APB |
9585 | { |
9586 | this_arg = primary ? primary : current_this; | |
9587 | ||
9588 | /* If we're using an access method, things are different. | |
9589 | There are two familly of cases: | |
9590 | ||
9591 | 1) We're not generating bytecodes: | |
9592 | ||
9593 | - LIST is non static. It's invocation is transformed from | |
9594 | x(a1,...,an) into this$<n>.x(a1,....an). | |
9595 | - LIST is static. It's invocation is transformed from | |
9596 | x(a1,...,an) into TYPE_OF(this$<n>).x(a1,....an) | |
9597 | ||
9598 | 2) We're generating bytecodes: | |
9599 | ||
9600 | - LIST is non static. It's invocation is transformed from | |
9601 | x(a1,....,an) into access$<n>(this$<n>,a1,...,an). | |
9602 | - LIST is static. It's invocation is transformed from | |
9603 | x(a1,....,an) into TYPEOF(this$<n>).x(a1,....an). | |
9604 | ||
9605 | Of course, this$<n> can be abitrary complex, ranging from | |
9606 | this$0 (the immediate outer context) to | |
9607 | access$0(access$0(...(this$0))). | |
9608 | ||
9609 | maybe_use_access_method returns a non zero value if the | |
dfb99c83 APB |
9610 | this_arg has to be moved into the (then generated) stub |
9611 | argument list. In the mean time, the selected function | |
9612 | might have be replaced by a generated stub. */ | |
c2952b01 APB |
9613 | if (maybe_use_access_method (is_super_init, &list, &this_arg)) |
9614 | args = tree_cons (NULL_TREE, this_arg, args); | |
9615 | } | |
e04a16fb | 9616 | } |
b67d701b | 9617 | |
e04a16fb AG |
9618 | /* Merge point of all resolution schemes. If we have nothing, this |
9619 | is an error, already signaled */ | |
b9f7e36c APB |
9620 | if (!list) |
9621 | PATCH_METHOD_RETURN_ERROR (); | |
b67d701b | 9622 | |
e04a16fb AG |
9623 | /* Check accessibility, position the is_static flag, build and |
9624 | return the call */ | |
9bbc7d9f | 9625 | if (not_accessible_p (DECL_CONTEXT (current_function_decl), list, 0)) |
e04a16fb | 9626 | { |
c2e3db92 | 9627 | char *fct_name = xstrdup (lang_printable_name (list, 0)); |
e04a16fb AG |
9628 | parse_error_context |
9629 | (wfl, "Can't access %s method `%s %s.%s' from `%s'", | |
9630 | java_accstring_lookup (get_access_flags_from_decl (list)), | |
0a2138e2 | 9631 | lang_printable_name (TREE_TYPE (TREE_TYPE (list)), 0), |
5e942c50 APB |
9632 | IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (DECL_CONTEXT (list)))), |
9633 | fct_name, IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (current_class)))); | |
e04a16fb | 9634 | free (fct_name); |
b9f7e36c | 9635 | PATCH_METHOD_RETURN_ERROR (); |
e04a16fb | 9636 | } |
5e942c50 | 9637 | check_deprecation (wfl, list); |
22eed1e6 | 9638 | |
c2952b01 APB |
9639 | /* If invoking a innerclass constructor, there are hidden parameters |
9640 | to pass */ | |
9641 | if (TREE_CODE (patch) == NEW_CLASS_EXPR | |
9642 | && PURE_INNER_CLASS_TYPE_P (DECL_CONTEXT (list))) | |
9643 | { | |
9644 | /* And make sure we add the accessed local variables to be saved | |
9645 | in field aliases. */ | |
9646 | args = build_alias_initializer_parameter_list | |
9647 | (AIPL_FUNCTION_CTOR_INVOCATION, DECL_CONTEXT (list), args, NULL); | |
9648 | ||
9649 | /* We have to reverse things. Find out why. FIXME */ | |
9650 | if (ANONYMOUS_CLASS_P (DECL_CONTEXT (list))) | |
9651 | args = nreverse (args); | |
9652 | ||
9653 | /* Secretely pass the current_this/primary as a second argument */ | |
165f37bc APB |
9654 | if (primary || current_this) |
9655 | args = tree_cons (NULL_TREE, (primary ? primary : current_this), args); | |
9656 | else | |
9657 | args = tree_cons (NULL_TREE, integer_zero_node, args); | |
c2952b01 APB |
9658 | } |
9659 | ||
152de068 APB |
9660 | /* This handles the situation where a constructor invocation needs |
9661 | to have an enclosing context passed as a second parameter (the | |
9662 | constructor is one of an inner class. We extract it from the | |
9663 | current function. */ | |
9664 | if (is_super_init && PURE_INNER_CLASS_TYPE_P (DECL_CONTEXT (list))) | |
9665 | { | |
9666 | tree enclosing_decl = DECL_CONTEXT (TYPE_NAME (current_class)); | |
9667 | tree extra_arg; | |
9668 | ||
9669 | if (ANONYMOUS_CLASS_P (current_class) || !DECL_CONTEXT (enclosing_decl)) | |
9670 | { | |
9671 | extra_arg = DECL_FUNCTION_BODY (current_function_decl); | |
9672 | extra_arg = TREE_CHAIN (BLOCK_EXPR_DECLS (extra_arg)); | |
9673 | } | |
9674 | else | |
9675 | { | |
9676 | tree dest = TREE_TYPE (DECL_CONTEXT (enclosing_decl)); | |
9677 | extra_arg = | |
9678 | build_access_to_thisn (TREE_TYPE (enclosing_decl), dest, 0); | |
9679 | extra_arg = java_complete_tree (extra_arg); | |
9680 | } | |
9681 | args = tree_cons (NULL_TREE, extra_arg, args); | |
9682 | } | |
9683 | ||
22eed1e6 | 9684 | is_static_flag = METHOD_STATIC (list); |
bccaf73a PB |
9685 | if (! METHOD_STATIC (list) && this_arg != NULL_TREE) |
9686 | args = tree_cons (NULL_TREE, this_arg, args); | |
22eed1e6 | 9687 | |
c3f2a476 APB |
9688 | /* In the context of an explicit constructor invocation, we can't |
9689 | invoke any method relying on `this'. Exceptions are: we're | |
9690 | invoking a static function, primary exists and is not the current | |
9691 | this, we're creating a new object. */ | |
22eed1e6 | 9692 | if (ctxp->explicit_constructor_p |
c3f2a476 APB |
9693 | && !is_static_flag |
9694 | && (!primary || primary == current_this) | |
9695 | && (TREE_CODE (patch) != NEW_CLASS_EXPR)) | |
22eed1e6 | 9696 | { |
781b0558 | 9697 | parse_error_context (wfl, "Can't reference `this' before the superclass constructor has been called"); |
22eed1e6 APB |
9698 | PATCH_METHOD_RETURN_ERROR (); |
9699 | } | |
e04a16fb | 9700 | java_parser_context_restore_global (); |
22eed1e6 APB |
9701 | if (is_static) |
9702 | *is_static = is_static_flag; | |
b9f7e36c APB |
9703 | /* Sometimes, we want the decl of the selected method. Such as for |
9704 | EH checking */ | |
9705 | if (ret_decl) | |
9706 | *ret_decl = list; | |
89e09b9a PB |
9707 | patch = patch_invoke (patch, list, args); |
9708 | if (is_super_init && CLASS_HAS_FINIT_P (current_class)) | |
9709 | { | |
c2952b01 APB |
9710 | tree finit_parms, finit_call; |
9711 | ||
9712 | /* Prepare to pass hidden parameters to $finit$, if any. */ | |
9713 | finit_parms = build_alias_initializer_parameter_list | |
9714 | (AIPL_FUNCTION_FINIT_INVOCATION, current_class, NULL_TREE, NULL); | |
89e09b9a | 9715 | |
c2952b01 APB |
9716 | finit_call = |
9717 | build_method_invocation (build_wfl_node (finit_identifier_node), | |
9718 | finit_parms); | |
9719 | ||
9720 | /* Generate the code used to initialize fields declared with an | |
9721 | initialization statement and build a compound statement along | |
9722 | with the super constructor invocation. */ | |
89e09b9a PB |
9723 | patch = build (COMPOUND_EXPR, void_type_node, patch, |
9724 | java_complete_tree (finit_call)); | |
9725 | CAN_COMPLETE_NORMALLY (patch) = 1; | |
9726 | } | |
9727 | return patch; | |
e04a16fb AG |
9728 | } |
9729 | ||
9730 | /* Check that we're not trying to do a static reference to a method in | |
9731 | non static method. Return 1 if it's the case, 0 otherwise. */ | |
9732 | ||
9733 | static int | |
9734 | check_for_static_method_reference (wfl, node, method, where, primary) | |
9735 | tree wfl, node, method, where, primary; | |
9736 | { | |
9737 | if (METHOD_STATIC (current_function_decl) | |
9738 | && !METHOD_STATIC (method) && !primary && !CALL_CONSTRUCTOR_P (node)) | |
9739 | { | |
c2e3db92 | 9740 | char *fct_name = xstrdup (lang_printable_name (method, 0)); |
e04a16fb AG |
9741 | parse_error_context |
9742 | (wfl, "Can't make static reference to method `%s %s' in class `%s'", | |
0a2138e2 | 9743 | lang_printable_name (TREE_TYPE (TREE_TYPE (method)), 0), fct_name, |
e04a16fb AG |
9744 | IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (where)))); |
9745 | free (fct_name); | |
9746 | return 1; | |
9747 | } | |
9748 | return 0; | |
9749 | } | |
9750 | ||
c2952b01 APB |
9751 | /* Fix the invocation of *MDECL if necessary in the case of a |
9752 | invocation from an inner class. *THIS_ARG might be modified | |
9753 | appropriately and an alternative access to *MDECL might be | |
9754 | returned. */ | |
9755 | ||
9756 | static int | |
9757 | maybe_use_access_method (is_super_init, mdecl, this_arg) | |
9758 | int is_super_init; | |
9759 | tree *mdecl, *this_arg; | |
9760 | { | |
9761 | tree ctx; | |
9762 | tree md = *mdecl, ta = *this_arg; | |
9763 | int to_return = 0; | |
9764 | int non_static_context = !METHOD_STATIC (md); | |
9765 | ||
9766 | if (is_super_init | |
165f37bc APB |
9767 | || DECL_CONTEXT (md) == current_class |
9768 | || !PURE_INNER_CLASS_TYPE_P (current_class) | |
9769 | || DECL_FINIT_P (md)) | |
c2952b01 APB |
9770 | return 0; |
9771 | ||
9772 | /* If we're calling a method found in an enclosing class, generate | |
9773 | what it takes to retrieve the right this. Don't do that if we're | |
9774 | invoking a static method. */ | |
9775 | ||
9776 | if (non_static_context) | |
9777 | { | |
9778 | ctx = TREE_TYPE (DECL_CONTEXT (TYPE_NAME (current_class))); | |
9779 | if (ctx == DECL_CONTEXT (md)) | |
9780 | { | |
9781 | ta = build_current_thisn (current_class); | |
9782 | ta = build_wfl_node (ta); | |
9783 | } | |
9784 | else | |
9785 | { | |
9786 | tree type = ctx; | |
9787 | while (type) | |
9788 | { | |
9789 | maybe_build_thisn_access_method (type); | |
9790 | if (type == DECL_CONTEXT (md)) | |
9791 | { | |
9792 | ta = build_access_to_thisn (ctx, type, 0); | |
9793 | break; | |
9794 | } | |
9795 | type = (DECL_CONTEXT (TYPE_NAME (type)) ? | |
9796 | TREE_TYPE (DECL_CONTEXT (TYPE_NAME (type))) : NULL_TREE); | |
9797 | } | |
9798 | } | |
9799 | ta = java_complete_tree (ta); | |
9800 | } | |
9801 | ||
9802 | /* We might have to use an access method to get to MD. We can | |
9803 | break the method access rule as far as we're not generating | |
9804 | bytecode */ | |
9805 | if (METHOD_PRIVATE (md) && flag_emit_class_files) | |
9806 | { | |
9807 | md = build_outer_method_access_method (md); | |
9808 | to_return = 1; | |
9809 | } | |
9810 | ||
9811 | *mdecl = md; | |
9812 | *this_arg = ta; | |
9813 | ||
9814 | /* Returnin a non zero value indicates we were doing a non static | |
9815 | method invokation that is now a static invocation. It will have | |
9816 | callee displace `this' to insert it in the regular argument | |
9817 | list. */ | |
9818 | return (non_static_context && to_return); | |
9819 | } | |
9820 | ||
e04a16fb AG |
9821 | /* Patch an invoke expression METHOD and ARGS, based on its invocation |
9822 | mode. */ | |
9823 | ||
9824 | static tree | |
89e09b9a | 9825 | patch_invoke (patch, method, args) |
e04a16fb | 9826 | tree patch, method, args; |
e04a16fb AG |
9827 | { |
9828 | tree dtable, func; | |
0a2138e2 | 9829 | tree original_call, t, ta; |
e815887f | 9830 | tree cond = NULL_TREE; |
e04a16fb | 9831 | |
5e942c50 APB |
9832 | /* Last step for args: convert build-in types. If we're dealing with |
9833 | a new TYPE() type call, the first argument to the constructor | |
e815887f | 9834 | isn't found in the incoming argument list, but delivered by |
5e942c50 APB |
9835 | `new' */ |
9836 | t = TYPE_ARG_TYPES (TREE_TYPE (method)); | |
9837 | if (TREE_CODE (patch) == NEW_CLASS_EXPR) | |
9838 | t = TREE_CHAIN (t); | |
ac825856 APB |
9839 | for (ta = args; t != end_params_node && ta; |
9840 | t = TREE_CHAIN (t), ta = TREE_CHAIN (ta)) | |
b9f7e36c APB |
9841 | if (JPRIMITIVE_TYPE_P (TREE_TYPE (TREE_VALUE (ta))) && |
9842 | TREE_TYPE (TREE_VALUE (ta)) != TREE_VALUE (t)) | |
9843 | TREE_VALUE (ta) = convert (TREE_VALUE (t), TREE_VALUE (ta)); | |
1a6d4fb7 APB |
9844 | |
9845 | /* Resolve unresolved returned type isses */ | |
9846 | t = TREE_TYPE (TREE_TYPE (method)); | |
9847 | if (TREE_CODE (t) == POINTER_TYPE && !CLASS_LOADED_P (TREE_TYPE (t))) | |
9848 | resolve_and_layout (TREE_TYPE (t), NULL); | |
c2952b01 | 9849 | |
e8fc7396 | 9850 | if (flag_emit_class_files || flag_emit_xref) |
15fdcfe9 PB |
9851 | func = method; |
9852 | else | |
e04a16fb | 9853 | { |
15fdcfe9 | 9854 | tree signature = build_java_signature (TREE_TYPE (method)); |
89e09b9a | 9855 | switch (invocation_mode (method, CALL_USING_SUPER (patch))) |
15fdcfe9 PB |
9856 | { |
9857 | case INVOKE_VIRTUAL: | |
9858 | dtable = invoke_build_dtable (0, args); | |
9859 | func = build_invokevirtual (dtable, method); | |
9860 | break; | |
b9f7e36c | 9861 | |
e815887f TT |
9862 | case INVOKE_NONVIRTUAL: |
9863 | /* If the object for the method call is null, we throw an | |
9864 | exception. We don't do this if the object is the current | |
9865 | method's `this'. In other cases we just rely on an | |
9866 | optimization pass to eliminate redundant checks. */ | |
9867 | if (TREE_VALUE (args) != current_this) | |
9868 | { | |
9869 | /* We use a SAVE_EXPR here to make sure we only evaluate | |
9870 | the new `self' expression once. */ | |
9871 | tree save_arg = save_expr (TREE_VALUE (args)); | |
9872 | TREE_VALUE (args) = save_arg; | |
9873 | cond = build (EQ_EXPR, boolean_type_node, save_arg, | |
9874 | null_pointer_node); | |
9875 | } | |
9876 | /* Fall through. */ | |
9877 | ||
15fdcfe9 PB |
9878 | case INVOKE_SUPER: |
9879 | case INVOKE_STATIC: | |
9880 | func = build_known_method_ref (method, TREE_TYPE (method), | |
9881 | DECL_CONTEXT (method), | |
9882 | signature, args); | |
9883 | break; | |
e04a16fb | 9884 | |
15fdcfe9 PB |
9885 | case INVOKE_INTERFACE: |
9886 | dtable = invoke_build_dtable (1, args); | |
173f556c | 9887 | func = build_invokeinterface (dtable, method); |
15fdcfe9 | 9888 | break; |
5e942c50 | 9889 | |
15fdcfe9 | 9890 | default: |
89e09b9a | 9891 | fatal ("internal error - unknown invocation_mode result"); |
15fdcfe9 PB |
9892 | } |
9893 | ||
9894 | /* Ensure self_type is initialized, (invokestatic). FIXME */ | |
9895 | func = build1 (NOP_EXPR, build_pointer_type (TREE_TYPE (method)), func); | |
e04a16fb AG |
9896 | } |
9897 | ||
e04a16fb AG |
9898 | TREE_TYPE (patch) = TREE_TYPE (TREE_TYPE (method)); |
9899 | TREE_OPERAND (patch, 0) = func; | |
9900 | TREE_OPERAND (patch, 1) = args; | |
9901 | original_call = patch; | |
9902 | ||
e815887f | 9903 | /* We're processing a `new TYPE ()' form. New is called and its |
22eed1e6 APB |
9904 | returned value is the first argument to the constructor. We build |
9905 | a COMPOUND_EXPR and use saved expression so that the overall NEW | |
9906 | expression value is a pointer to a newly created and initialized | |
9907 | class. */ | |
9908 | if (TREE_CODE (original_call) == NEW_CLASS_EXPR) | |
e04a16fb AG |
9909 | { |
9910 | tree class = DECL_CONTEXT (method); | |
9911 | tree c1, saved_new, size, new; | |
e8fc7396 | 9912 | if (flag_emit_class_files || flag_emit_xref) |
15fdcfe9 PB |
9913 | { |
9914 | TREE_TYPE (patch) = build_pointer_type (class); | |
9915 | return patch; | |
9916 | } | |
e04a16fb AG |
9917 | if (!TYPE_SIZE (class)) |
9918 | safe_layout_class (class); | |
9919 | size = size_in_bytes (class); | |
9920 | new = build (CALL_EXPR, promote_type (class), | |
9921 | build_address_of (alloc_object_node), | |
9922 | tree_cons (NULL_TREE, build_class_ref (class), | |
9923 | build_tree_list (NULL_TREE, | |
9924 | size_in_bytes (class))), | |
9925 | NULL_TREE); | |
9926 | saved_new = save_expr (new); | |
9927 | c1 = build_tree_list (NULL_TREE, saved_new); | |
9928 | TREE_CHAIN (c1) = TREE_OPERAND (original_call, 1); | |
9929 | TREE_OPERAND (original_call, 1) = c1; | |
9930 | TREE_SET_CODE (original_call, CALL_EXPR); | |
9931 | patch = build (COMPOUND_EXPR, TREE_TYPE (new), patch, saved_new); | |
9932 | } | |
e815887f TT |
9933 | |
9934 | /* If COND is set, then we are building a check to see if the object | |
9935 | is NULL. */ | |
9936 | if (cond != NULL_TREE) | |
9937 | { | |
9938 | /* We have to make the `then' branch a compound expression to | |
9939 | make the types turn out right. This seems bizarre. */ | |
9940 | patch = build (COND_EXPR, TREE_TYPE (patch), cond, | |
9941 | build (COMPOUND_EXPR, TREE_TYPE (patch), | |
9942 | build (CALL_EXPR, void_type_node, | |
9943 | build_address_of (soft_nullpointer_node), | |
9944 | NULL_TREE, NULL_TREE), | |
9945 | (FLOAT_TYPE_P (TREE_TYPE (patch)) | |
9946 | ? build_real (TREE_TYPE (patch), dconst0) | |
9947 | : build1 (CONVERT_EXPR, TREE_TYPE (patch), | |
9948 | integer_zero_node))), | |
9949 | patch); | |
9950 | TREE_SIDE_EFFECTS (patch) = 1; | |
9951 | } | |
9952 | ||
e04a16fb AG |
9953 | return patch; |
9954 | } | |
9955 | ||
9956 | static int | |
9957 | invocation_mode (method, super) | |
9958 | tree method; | |
9959 | int super; | |
9960 | { | |
9961 | int access = get_access_flags_from_decl (method); | |
9962 | ||
22eed1e6 APB |
9963 | if (super) |
9964 | return INVOKE_SUPER; | |
9965 | ||
e815887f | 9966 | if (access & ACC_STATIC) |
e04a16fb AG |
9967 | return INVOKE_STATIC; |
9968 | ||
e815887f TT |
9969 | /* We have to look for a constructor before we handle nonvirtual |
9970 | calls; otherwise the constructor will look nonvirtual. */ | |
9971 | if (DECL_CONSTRUCTOR_P (method)) | |
e04a16fb | 9972 | return INVOKE_STATIC; |
e815887f TT |
9973 | |
9974 | if (access & ACC_FINAL || access & ACC_PRIVATE) | |
9975 | return INVOKE_NONVIRTUAL; | |
9976 | ||
9977 | if (CLASS_FINAL (TYPE_NAME (DECL_CONTEXT (method)))) | |
9978 | return INVOKE_NONVIRTUAL; | |
9979 | ||
e04a16fb AG |
9980 | if (CLASS_INTERFACE (TYPE_NAME (DECL_CONTEXT (method)))) |
9981 | return INVOKE_INTERFACE; | |
22eed1e6 | 9982 | |
e04a16fb AG |
9983 | return INVOKE_VIRTUAL; |
9984 | } | |
9985 | ||
b67d701b PB |
9986 | /* Retrieve a refined list of matching methods. It covers the step |
9987 | 15.11.2 (Compile-Time Step 2) */ | |
e04a16fb AG |
9988 | |
9989 | static tree | |
9990 | lookup_method_invoke (lc, cl, class, name, arg_list) | |
9991 | int lc; | |
9992 | tree cl; | |
9993 | tree class, name, arg_list; | |
9994 | { | |
de4c7b02 | 9995 | tree atl = end_params_node; /* Arg Type List */ |
c877974e | 9996 | tree method, signature, list, node; |
49f48c71 | 9997 | const char *candidates; /* Used for error report */ |
b5b8a0e7 | 9998 | char *dup; |
e04a16fb | 9999 | |
5e942c50 | 10000 | /* Fix the arguments */ |
e04a16fb AG |
10001 | for (node = arg_list; node; node = TREE_CHAIN (node)) |
10002 | { | |
e3884b71 | 10003 | tree current_arg = TREE_TYPE (TREE_VALUE (node)); |
c877974e | 10004 | /* Non primitive type may have to be resolved */ |
e3884b71 | 10005 | if (!JPRIMITIVE_TYPE_P (current_arg)) |
c877974e APB |
10006 | resolve_and_layout (current_arg, NULL_TREE); |
10007 | /* And promoted */ | |
b67d701b | 10008 | if (TREE_CODE (current_arg) == RECORD_TYPE) |
c877974e | 10009 | current_arg = promote_type (current_arg); |
5e942c50 | 10010 | atl = tree_cons (NULL_TREE, current_arg, atl); |
e04a16fb | 10011 | } |
e04a16fb | 10012 | |
c2952b01 APB |
10013 | /* Presto. If we're dealing with an anonymous class and a |
10014 | constructor call, generate the right constructor now, since we | |
10015 | know the arguments' types. */ | |
10016 | ||
10017 | if (lc && ANONYMOUS_CLASS_P (class)) | |
10018 | craft_constructor (TYPE_NAME (class), atl); | |
10019 | ||
5e942c50 APB |
10020 | /* Find all candidates and then refine the list, searching for the |
10021 | most specific method. */ | |
10022 | list = find_applicable_accessible_methods_list (lc, class, name, atl); | |
10023 | list = find_most_specific_methods_list (list); | |
b67d701b PB |
10024 | if (list && !TREE_CHAIN (list)) |
10025 | return TREE_VALUE (list); | |
e04a16fb | 10026 | |
b67d701b PB |
10027 | /* Issue an error. List candidates if any. Candidates are listed |
10028 | only if accessible (non accessible methods may end-up here for | |
10029 | the sake of a better error report). */ | |
10030 | candidates = NULL; | |
10031 | if (list) | |
e04a16fb | 10032 | { |
e04a16fb | 10033 | tree current; |
b67d701b | 10034 | obstack_grow (&temporary_obstack, ". Candidates are:\n", 18); |
e04a16fb AG |
10035 | for (current = list; current; current = TREE_CHAIN (current)) |
10036 | { | |
b67d701b PB |
10037 | tree cm = TREE_VALUE (current); |
10038 | char string [4096]; | |
10039 | if (!cm || not_accessible_p (class, cm, 0)) | |
10040 | continue; | |
b67d701b | 10041 | sprintf |
22eed1e6 APB |
10042 | (string, " `%s' in `%s'%s", |
10043 | get_printable_method_name (cm), | |
b67d701b PB |
10044 | IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (DECL_CONTEXT (cm)))), |
10045 | (TREE_CHAIN (current) ? "\n" : "")); | |
10046 | obstack_grow (&temporary_obstack, string, strlen (string)); | |
10047 | } | |
10048 | obstack_1grow (&temporary_obstack, '\0'); | |
10049 | candidates = obstack_finish (&temporary_obstack); | |
10050 | } | |
10051 | /* Issue the error message */ | |
c877974e APB |
10052 | method = make_node (FUNCTION_TYPE); |
10053 | TYPE_ARG_TYPES (method) = atl; | |
b67d701b | 10054 | signature = build_java_argument_signature (method); |
c63b98cd | 10055 | dup = xstrdup (lang_printable_name (class, 0)); |
b5b8a0e7 | 10056 | parse_error_context (cl, "Can't find %s `%s(%s)' in type `%s'%s", |
22eed1e6 | 10057 | (lc ? "constructor" : "method"), |
b5b8a0e7 APB |
10058 | (lc ? dup : IDENTIFIER_POINTER (name)), |
10059 | IDENTIFIER_POINTER (signature), dup, | |
b67d701b | 10060 | (candidates ? candidates : "")); |
b5b8a0e7 | 10061 | free (dup); |
b67d701b PB |
10062 | return NULL_TREE; |
10063 | } | |
10064 | ||
5e942c50 APB |
10065 | /* 15.11.2.1: Find Methods that are Applicable and Accessible. LC is 1 |
10066 | when we're looking for a constructor. */ | |
b67d701b PB |
10067 | |
10068 | static tree | |
5e942c50 APB |
10069 | find_applicable_accessible_methods_list (lc, class, name, arglist) |
10070 | int lc; | |
b67d701b PB |
10071 | tree class, name, arglist; |
10072 | { | |
165f37bc | 10073 | static int object_done = 0; |
b67d701b PB |
10074 | tree list = NULL_TREE, all_list = NULL_TREE; |
10075 | ||
c2952b01 APB |
10076 | if (!CLASS_LOADED_P (class) && !CLASS_FROM_SOURCE_P (class)) |
10077 | { | |
10078 | load_class (class, 1); | |
10079 | safe_layout_class (class); | |
10080 | } | |
10081 | ||
1982388a | 10082 | /* Search interfaces */ |
9a7ab4b3 APB |
10083 | if (TREE_CODE (TYPE_NAME (class)) == TYPE_DECL |
10084 | && CLASS_INTERFACE (TYPE_NAME (class))) | |
b67d701b | 10085 | { |
e0422ed0 | 10086 | static struct hash_table t, *searched_interfaces = NULL; |
de0b553f | 10087 | static int search_not_done = 0; |
1982388a APB |
10088 | int i, n; |
10089 | tree basetype_vec = TYPE_BINFO_BASETYPES (class); | |
10090 | ||
e0422ed0 APB |
10091 | /* Search in the hash table, otherwise create a new one if |
10092 | necessary and insert the new entry. */ | |
10093 | ||
de0b553f | 10094 | if (searched_interfaces) |
e0422ed0 APB |
10095 | { |
10096 | if (hash_lookup (searched_interfaces, | |
10097 | (const hash_table_key) class, FALSE, NULL)) | |
10098 | return NULL; | |
de0b553f | 10099 | } |
e0422ed0 APB |
10100 | else |
10101 | { | |
10102 | hash_table_init (&t, hash_newfunc, java_hash_hash_tree_node, | |
10103 | java_hash_compare_tree_node); | |
10104 | searched_interfaces = &t; | |
10105 | } | |
10106 | ||
10107 | hash_lookup (searched_interfaces, | |
10108 | (const hash_table_key) class, TRUE, NULL); | |
de0b553f | 10109 | |
165f37bc APB |
10110 | search_applicable_methods_list (lc, TYPE_METHODS (class), |
10111 | name, arglist, &list, &all_list); | |
1982388a | 10112 | n = TREE_VEC_LENGTH (basetype_vec); |
165f37bc | 10113 | for (i = 1; i < n; i++) |
b67d701b | 10114 | { |
de0b553f APB |
10115 | tree t = BINFO_TYPE (TREE_VEC_ELT (basetype_vec, i)); |
10116 | tree rlist; | |
10117 | ||
de0b553f APB |
10118 | search_not_done++; |
10119 | rlist = find_applicable_accessible_methods_list (lc, t, name, | |
10120 | arglist); | |
165f37bc | 10121 | list = chainon (rlist, list); |
de0b553f APB |
10122 | search_not_done--; |
10123 | } | |
10124 | ||
10125 | /* We're done. Reset the searched interfaces list and finally search | |
10126 | java.lang.Object */ | |
10127 | if (!search_not_done) | |
10128 | { | |
165f37bc APB |
10129 | if (!object_done) |
10130 | search_applicable_methods_list (lc, | |
10131 | TYPE_METHODS (object_type_node), | |
10132 | name, arglist, &list, &all_list); | |
e0422ed0 APB |
10133 | hash_table_free (searched_interfaces); |
10134 | searched_interfaces = NULL; | |
e04a16fb | 10135 | } |
e04a16fb | 10136 | } |
1982388a APB |
10137 | /* Search classes */ |
10138 | else | |
c2952b01 | 10139 | { |
165f37bc APB |
10140 | tree sc = class; |
10141 | int seen_inner_class = 0; | |
c2952b01 APB |
10142 | search_applicable_methods_list (lc, TYPE_METHODS (class), |
10143 | name, arglist, &list, &all_list); | |
10144 | ||
165f37bc APB |
10145 | /* We must search all interfaces of this class */ |
10146 | if (!lc) | |
10147 | { | |
10148 | tree basetype_vec = TYPE_BINFO_BASETYPES (sc); | |
10149 | int n = TREE_VEC_LENGTH (basetype_vec), i; | |
10150 | object_done = 1; | |
10151 | for (i = 1; i < n; i++) | |
10152 | { | |
10153 | tree t = BINFO_TYPE (TREE_VEC_ELT (basetype_vec, i)); | |
165f37bc | 10154 | if (t != object_type_node) |
30a3caef ZW |
10155 | { |
10156 | tree rlist | |
10157 | = find_applicable_accessible_methods_list (lc, t, | |
10158 | name, arglist); | |
10159 | list = chainon (rlist, list); | |
10160 | } | |
165f37bc APB |
10161 | } |
10162 | object_done = 0; | |
10163 | } | |
10164 | ||
c2952b01 APB |
10165 | /* Search enclosing context of inner classes before looking |
10166 | ancestors up. */ | |
10167 | while (!lc && INNER_CLASS_TYPE_P (class)) | |
10168 | { | |
165f37bc APB |
10169 | tree rlist; |
10170 | seen_inner_class = 1; | |
c2952b01 | 10171 | class = TREE_TYPE (DECL_CONTEXT (TYPE_NAME (class))); |
165f37bc APB |
10172 | rlist = find_applicable_accessible_methods_list (lc, class, |
10173 | name, arglist); | |
10174 | list = chainon (rlist, list); | |
c2952b01 | 10175 | } |
165f37bc APB |
10176 | |
10177 | if (!lc && seen_inner_class | |
10178 | && TREE_TYPE (DECL_CONTEXT (TYPE_NAME (sc))) == CLASSTYPE_SUPER (sc)) | |
10179 | class = CLASSTYPE_SUPER (sc); | |
10180 | else | |
10181 | class = sc; | |
10182 | ||
10183 | for (class = (lc ? NULL_TREE : CLASSTYPE_SUPER (class)); | |
10184 | class; class = CLASSTYPE_SUPER (class)) | |
10185 | search_applicable_methods_list (lc, TYPE_METHODS (class), | |
10186 | name, arglist, &list, &all_list); | |
c2952b01 | 10187 | } |
1982388a | 10188 | |
b67d701b PB |
10189 | /* Either return the list obtained or all selected (but |
10190 | inaccessible) methods for better error report. */ | |
10191 | return (!list ? all_list : list); | |
10192 | } | |
e04a16fb | 10193 | |
1982388a APB |
10194 | /* Effectively search for the approriate method in method */ |
10195 | ||
10196 | static void | |
c2952b01 | 10197 | search_applicable_methods_list (lc, method, name, arglist, list, all_list) |
1982388a APB |
10198 | int lc; |
10199 | tree method, name, arglist; | |
10200 | tree *list, *all_list; | |
10201 | { | |
10202 | for (; method; method = TREE_CHAIN (method)) | |
10203 | { | |
10204 | /* When dealing with constructor, stop here, otherwise search | |
10205 | other classes */ | |
10206 | if (lc && !DECL_CONSTRUCTOR_P (method)) | |
10207 | continue; | |
10208 | else if (!lc && (DECL_CONSTRUCTOR_P (method) | |
10209 | || (GET_METHOD_NAME (method) != name))) | |
10210 | continue; | |
10211 | ||
10212 | if (argument_types_convertible (method, arglist)) | |
10213 | { | |
10214 | /* Retain accessible methods only */ | |
10215 | if (!not_accessible_p (DECL_CONTEXT (current_function_decl), | |
10216 | method, 0)) | |
10217 | *list = tree_cons (NULL_TREE, method, *list); | |
10218 | else | |
10219 | /* Also retain all selected method here */ | |
10220 | *all_list = tree_cons (NULL_TREE, method, *list); | |
10221 | } | |
10222 | } | |
10223 | } | |
10224 | ||
b67d701b PB |
10225 | /* 15.11.2.2 Choose the Most Specific Method */ |
10226 | ||
10227 | static tree | |
10228 | find_most_specific_methods_list (list) | |
10229 | tree list; | |
10230 | { | |
10231 | int max = 0; | |
9a7ab4b3 | 10232 | int abstract, candidates; |
b67d701b PB |
10233 | tree current, new_list = NULL_TREE; |
10234 | for (current = list; current; current = TREE_CHAIN (current)) | |
e04a16fb | 10235 | { |
b67d701b PB |
10236 | tree method; |
10237 | DECL_SPECIFIC_COUNT (TREE_VALUE (current)) = 0; | |
10238 | ||
10239 | for (method = list; method; method = TREE_CHAIN (method)) | |
10240 | { | |
10241 | /* Don't test a method against itself */ | |
10242 | if (method == current) | |
10243 | continue; | |
10244 | ||
10245 | /* Compare arguments and location where method where declared */ | |
10246 | if (argument_types_convertible (TREE_VALUE (method), | |
10247 | TREE_VALUE (current)) | |
10248 | && valid_method_invocation_conversion_p | |
10249 | (DECL_CONTEXT (TREE_VALUE (method)), | |
10250 | DECL_CONTEXT (TREE_VALUE (current)))) | |
10251 | { | |
10252 | int v = ++DECL_SPECIFIC_COUNT (TREE_VALUE (current)); | |
10253 | max = (v > max ? v : max); | |
10254 | } | |
10255 | } | |
e04a16fb AG |
10256 | } |
10257 | ||
b67d701b | 10258 | /* Review the list and select the maximally specific methods */ |
9a7ab4b3 APB |
10259 | for (current = list, abstract = -1, candidates = -1; |
10260 | current; current = TREE_CHAIN (current)) | |
b67d701b | 10261 | if (DECL_SPECIFIC_COUNT (TREE_VALUE (current)) == max) |
9a7ab4b3 APB |
10262 | { |
10263 | new_list = tree_cons (NULL_TREE, TREE_VALUE (current), new_list); | |
10264 | abstract += (METHOD_ABSTRACT (TREE_VALUE (current)) ? 1 : 0); | |
10265 | candidates++; | |
10266 | } | |
b67d701b | 10267 | |
165f37bc APB |
10268 | /* If we have several and they're all abstract, just pick the |
10269 | closest one. */ | |
9a7ab4b3 APB |
10270 | if (candidates > 0 && (candidates == abstract)) |
10271 | { | |
10272 | new_list = nreverse (new_list); | |
10273 | TREE_CHAIN (new_list) = NULL_TREE; | |
10274 | } | |
165f37bc | 10275 | |
9a7ab4b3 APB |
10276 | /* We have several, we couldn't find a most specific, all but one are |
10277 | abstract, we pick the only non abstract one. */ | |
10278 | if (candidates > 0 && !max && (candidates == abstract+1)) | |
165f37bc | 10279 | { |
9a7ab4b3 APB |
10280 | for (current = new_list; current; current = TREE_CHAIN (current)) |
10281 | if (!METHOD_ABSTRACT (TREE_VALUE (current))) | |
10282 | { | |
10283 | TREE_CHAIN (current) = NULL_TREE; | |
10284 | new_list = current; | |
10285 | } | |
165f37bc APB |
10286 | } |
10287 | ||
b67d701b PB |
10288 | /* If we can't find one, lower expectations and try to gather multiple |
10289 | maximally specific methods */ | |
165f37bc | 10290 | while (!new_list && max) |
b67d701b PB |
10291 | { |
10292 | while (--max > 0) | |
10293 | { | |
10294 | if (DECL_SPECIFIC_COUNT (TREE_VALUE (current)) == max) | |
10295 | new_list = tree_cons (NULL_TREE, TREE_VALUE (current), new_list); | |
10296 | } | |
b67d701b PB |
10297 | } |
10298 | ||
10299 | return new_list; | |
e04a16fb AG |
10300 | } |
10301 | ||
b67d701b PB |
10302 | /* Make sure that the type of each M2_OR_ARGLIST arguments can be |
10303 | converted by method invocation conversion (5.3) to the type of the | |
10304 | corresponding parameter of M1. Implementation expects M2_OR_ARGLIST | |
10305 | to change less often than M1. */ | |
e04a16fb | 10306 | |
b67d701b PB |
10307 | static int |
10308 | argument_types_convertible (m1, m2_or_arglist) | |
10309 | tree m1, m2_or_arglist; | |
e04a16fb | 10310 | { |
b67d701b PB |
10311 | static tree m2_arg_value = NULL_TREE; |
10312 | static tree m2_arg_cache = NULL_TREE; | |
e04a16fb | 10313 | |
b67d701b | 10314 | register tree m1_arg, m2_arg; |
e04a16fb | 10315 | |
c2952b01 | 10316 | SKIP_THIS_AND_ARTIFICIAL_PARMS (m1_arg, m1) |
e04a16fb | 10317 | |
b67d701b PB |
10318 | if (m2_arg_value == m2_or_arglist) |
10319 | m2_arg = m2_arg_cache; | |
10320 | else | |
10321 | { | |
10322 | /* M2_OR_ARGLIST can be a function DECL or a raw list of | |
10323 | argument types */ | |
10324 | if (m2_or_arglist && TREE_CODE (m2_or_arglist) == FUNCTION_DECL) | |
10325 | { | |
10326 | m2_arg = TYPE_ARG_TYPES (TREE_TYPE (m2_or_arglist)); | |
10327 | if (!METHOD_STATIC (m2_or_arglist)) | |
10328 | m2_arg = TREE_CHAIN (m2_arg); | |
10329 | } | |
10330 | else | |
10331 | m2_arg = m2_or_arglist; | |
e04a16fb | 10332 | |
b67d701b PB |
10333 | m2_arg_value = m2_or_arglist; |
10334 | m2_arg_cache = m2_arg; | |
10335 | } | |
e04a16fb | 10336 | |
de4c7b02 | 10337 | while (m1_arg != end_params_node && m2_arg != end_params_node) |
b67d701b | 10338 | { |
c877974e | 10339 | resolve_and_layout (TREE_VALUE (m1_arg), NULL_TREE); |
b67d701b PB |
10340 | if (!valid_method_invocation_conversion_p (TREE_VALUE (m1_arg), |
10341 | TREE_VALUE (m2_arg))) | |
10342 | break; | |
10343 | m1_arg = TREE_CHAIN (m1_arg); | |
10344 | m2_arg = TREE_CHAIN (m2_arg); | |
e04a16fb | 10345 | } |
de4c7b02 | 10346 | return m1_arg == end_params_node && m2_arg == end_params_node; |
e04a16fb AG |
10347 | } |
10348 | ||
10349 | /* Qualification routines */ | |
10350 | ||
10351 | static void | |
10352 | qualify_ambiguous_name (id) | |
10353 | tree id; | |
10354 | { | |
cd531a2e KG |
10355 | tree qual, qual_wfl, name = NULL_TREE, decl, ptr_type = NULL_TREE, |
10356 | saved_current_class; | |
d8fccff5 | 10357 | int again, super_found = 0, this_found = 0, new_array_found = 0; |
8576f094 | 10358 | int code; |
e04a16fb AG |
10359 | |
10360 | /* We first qualify the first element, then derive qualification of | |
10361 | others based on the first one. If the first element is qualified | |
10362 | by a resolution (field or type), this resolution is stored in the | |
10363 | QUAL_RESOLUTION of the qual element being examined. We need to | |
10364 | save the current_class since the use of SUPER might change the | |
10365 | its value. */ | |
10366 | saved_current_class = current_class; | |
10367 | qual = EXPR_WFL_QUALIFICATION (id); | |
10368 | do { | |
10369 | ||
10370 | /* Simple qualified expression feature a qual_wfl that is a | |
10371 | WFL. Expression derived from a primary feature more complicated | |
10372 | things like a CALL_EXPR. Expression from primary need to be | |
10373 | worked out to extract the part on which the qualification will | |
10374 | take place. */ | |
10375 | qual_wfl = QUAL_WFL (qual); | |
10376 | switch (TREE_CODE (qual_wfl)) | |
10377 | { | |
10378 | case CALL_EXPR: | |
10379 | qual_wfl = TREE_OPERAND (qual_wfl, 0); | |
10380 | if (TREE_CODE (qual_wfl) != EXPR_WITH_FILE_LOCATION) | |
10381 | { | |
10382 | qual = EXPR_WFL_QUALIFICATION (qual_wfl); | |
10383 | qual_wfl = QUAL_WFL (qual); | |
10384 | } | |
10385 | break; | |
d8fccff5 | 10386 | case NEW_ARRAY_EXPR: |
c2952b01 | 10387 | case NEW_ANONYMOUS_ARRAY_EXPR: |
d8fccff5 | 10388 | qual = TREE_CHAIN (qual); |
1a6d4fb7 | 10389 | again = new_array_found = 1; |
d8fccff5 | 10390 | continue; |
e04a16fb | 10391 | case CONVERT_EXPR: |
f2760b27 APB |
10392 | break; |
10393 | case NEW_CLASS_EXPR: | |
e04a16fb AG |
10394 | qual_wfl = TREE_OPERAND (qual_wfl, 0); |
10395 | break; | |
c583dd46 APB |
10396 | case ARRAY_REF: |
10397 | while (TREE_CODE (qual_wfl) == ARRAY_REF) | |
10398 | qual_wfl = TREE_OPERAND (qual_wfl, 0); | |
10399 | break; | |
8576f094 APB |
10400 | case STRING_CST: |
10401 | qual = TREE_CHAIN (qual); | |
10402 | qual_wfl = QUAL_WFL (qual); | |
10403 | break; | |
165f37bc APB |
10404 | case CLASS_LITERAL: |
10405 | qual = TREE_CHAIN (qual); | |
10406 | qual_wfl = QUAL_WFL (qual); | |
10407 | break; | |
0a2138e2 APB |
10408 | default: |
10409 | /* Fix for -Wall. Just break doing nothing */ | |
10410 | break; | |
e04a16fb | 10411 | } |
8576f094 | 10412 | |
e04a16fb AG |
10413 | ptr_type = current_class; |
10414 | again = 0; | |
8576f094 APB |
10415 | code = TREE_CODE (qual_wfl); |
10416 | ||
10417 | /* Pos evaluation: non WFL leading expression nodes */ | |
10418 | if (code == CONVERT_EXPR | |
10419 | && TREE_CODE (TREE_TYPE (qual_wfl)) == EXPR_WITH_FILE_LOCATION) | |
10420 | name = EXPR_WFL_NODE (TREE_TYPE (qual_wfl)); | |
10421 | ||
cd7c5840 APB |
10422 | else if (code == INTEGER_CST) |
10423 | name = qual_wfl; | |
10424 | ||
ac22f9cb | 10425 | else if ((code == ARRAY_REF || code == CALL_EXPR || code == MODIFY_EXPR) && |
8576f094 APB |
10426 | TREE_CODE (TREE_OPERAND (qual_wfl, 0)) == EXPR_WITH_FILE_LOCATION) |
10427 | name = EXPR_WFL_NODE (TREE_OPERAND (qual_wfl, 0)); | |
10428 | ||
c2952b01 APB |
10429 | else if (code == TREE_LIST) |
10430 | name = EXPR_WFL_NODE (TREE_PURPOSE (qual_wfl)); | |
10431 | ||
37feda7d APB |
10432 | else if (code == STRING_CST || code == CONDITIONAL_EXPR |
10433 | || code == PLUS_EXPR) | |
8576f094 APB |
10434 | { |
10435 | qual = TREE_CHAIN (qual); | |
10436 | qual_wfl = QUAL_WFL (qual); | |
10437 | again = 1; | |
10438 | } | |
10439 | else | |
f441f671 APB |
10440 | { |
10441 | name = EXPR_WFL_NODE (qual_wfl); | |
10442 | if (!name) | |
10443 | { | |
10444 | qual = EXPR_WFL_QUALIFICATION (qual_wfl); | |
10445 | again = 1; | |
10446 | } | |
10447 | } | |
10448 | ||
e04a16fb AG |
10449 | /* If we have a THIS (from a primary), we set the context accordingly */ |
10450 | if (name == this_identifier_node) | |
10451 | { | |
10452 | qual = TREE_CHAIN (qual); | |
10453 | qual_wfl = QUAL_WFL (qual); | |
22eed1e6 APB |
10454 | if (TREE_CODE (qual_wfl) == CALL_EXPR) |
10455 | again = 1; | |
10456 | else | |
10457 | name = EXPR_WFL_NODE (qual_wfl); | |
e04a16fb AG |
10458 | this_found = 1; |
10459 | } | |
10460 | /* If we have a SUPER, we set the context accordingly */ | |
10461 | if (name == super_identifier_node) | |
10462 | { | |
10463 | current_class = CLASSTYPE_SUPER (ptr_type); | |
10464 | /* Check that there is such a thing as a super class. If not, | |
10465 | return. The error will be caught later on, during the | |
10466 | resolution */ | |
10467 | if (!current_class) | |
10468 | { | |
10469 | current_class = saved_current_class; | |
10470 | return; | |
10471 | } | |
10472 | qual = TREE_CHAIN (qual); | |
10473 | /* Do one more interation to set things up */ | |
10474 | super_found = again = 1; | |
10475 | } | |
10476 | } while (again); | |
10477 | ||
f2760b27 APB |
10478 | /* If name appears within the scope of a local variable declaration |
10479 | or parameter declaration, then it is an expression name. We don't | |
10480 | carry this test out if we're in the context of the use of SUPER | |
10481 | or THIS */ | |
cd7c5840 APB |
10482 | if (!this_found && !super_found |
10483 | && TREE_CODE (name) != STRING_CST && TREE_CODE (name) != INTEGER_CST | |
10484 | && (decl = IDENTIFIER_LOCAL_VALUE (name))) | |
e04a16fb AG |
10485 | { |
10486 | RESOLVE_EXPRESSION_NAME_P (qual_wfl) = 1; | |
10487 | QUAL_RESOLUTION (qual) = decl; | |
10488 | } | |
10489 | ||
10490 | /* If within the class/interface NAME was found to be used there | |
10491 | exists a (possibly inherited) field named NAME, then this is an | |
d8fccff5 APB |
10492 | expression name. If we saw a NEW_ARRAY_EXPR before and want to |
10493 | address length, it is OK. */ | |
10494 | else if ((decl = lookup_field_wrapper (ptr_type, name)) | |
10495 | || (new_array_found && name == length_identifier_node)) | |
e04a16fb AG |
10496 | { |
10497 | RESOLVE_EXPRESSION_NAME_P (qual_wfl) = 1; | |
d8fccff5 | 10498 | QUAL_RESOLUTION (qual) = (new_array_found ? NULL_TREE : decl); |
e04a16fb AG |
10499 | } |
10500 | ||
1a6d4fb7 | 10501 | /* We reclassify NAME as yielding to a type name resolution if: |
e04a16fb AG |
10502 | - NAME is a class/interface declared within the compilation |
10503 | unit containing NAME, | |
10504 | - NAME is imported via a single-type-import declaration, | |
10505 | - NAME is declared in an another compilation unit of the package | |
10506 | of the compilation unit containing NAME, | |
10507 | - NAME is declared by exactly on type-import-on-demand declaration | |
1a6d4fb7 APB |
10508 | of the compilation unit containing NAME. |
10509 | - NAME is actually a STRING_CST. */ | |
cd7c5840 APB |
10510 | else if (TREE_CODE (name) == STRING_CST || TREE_CODE (name) == INTEGER_CST |
10511 | || (decl = resolve_and_layout (name, NULL_TREE))) | |
e04a16fb AG |
10512 | { |
10513 | RESOLVE_TYPE_NAME_P (qual_wfl) = 1; | |
10514 | QUAL_RESOLUTION (qual) = decl; | |
10515 | } | |
10516 | ||
f2760b27 | 10517 | /* Method call, array references and cast are expression name */ |
9bbc7d9f | 10518 | else if (TREE_CODE (QUAL_WFL (qual)) == CALL_EXPR |
8576f094 APB |
10519 | || TREE_CODE (QUAL_WFL (qual)) == ARRAY_REF |
10520 | || TREE_CODE (QUAL_WFL (qual)) == CONVERT_EXPR) | |
e04a16fb AG |
10521 | RESOLVE_EXPRESSION_NAME_P (qual_wfl) = 1; |
10522 | ||
10523 | /* Check here that NAME isn't declared by more than one | |
10524 | type-import-on-demand declaration of the compilation unit | |
10525 | containing NAME. FIXME */ | |
10526 | ||
10527 | /* Otherwise, NAME is reclassified as a package name */ | |
10528 | else | |
10529 | RESOLVE_PACKAGE_NAME_P (qual_wfl) = 1; | |
10530 | ||
10531 | /* Propagate the qualification accross other components of the | |
10532 | qualified name */ | |
10533 | for (qual = TREE_CHAIN (qual); qual; | |
10534 | qual_wfl = QUAL_WFL (qual), qual = TREE_CHAIN (qual)) | |
10535 | { | |
10536 | if (RESOLVE_PACKAGE_NAME_P (qual_wfl)) | |
10537 | RESOLVE_PACKAGE_NAME_P (QUAL_WFL (qual)) = 1; | |
10538 | else | |
10539 | RESOLVE_EXPRESSION_NAME_P (QUAL_WFL (qual)) = 1; | |
10540 | } | |
10541 | ||
10542 | /* Store the global qualification for the ambiguous part of ID back | |
10543 | into ID fields */ | |
10544 | if (RESOLVE_EXPRESSION_NAME_P (qual_wfl)) | |
10545 | RESOLVE_EXPRESSION_NAME_P (id) = 1; | |
10546 | else if (RESOLVE_TYPE_NAME_P (qual_wfl)) | |
10547 | RESOLVE_TYPE_NAME_P (id) = 1; | |
10548 | else if (RESOLVE_PACKAGE_NAME_P (qual_wfl)) | |
10549 | RESOLVE_PACKAGE_NAME_P (id) = 1; | |
10550 | ||
10551 | /* Restore the current class */ | |
10552 | current_class = saved_current_class; | |
10553 | } | |
10554 | ||
10555 | static int | |
10556 | breakdown_qualified (left, right, source) | |
10557 | tree *left, *right, source; | |
10558 | { | |
10559 | char *p = IDENTIFIER_POINTER (source), *base; | |
10560 | int l = IDENTIFIER_LENGTH (source); | |
10561 | ||
10562 | /* Breakdown NAME into REMAINDER . IDENTIFIER */ | |
10563 | base = p; | |
10564 | p += (l-1); | |
10565 | while (*p != '.' && p != base) | |
10566 | p--; | |
10567 | ||
10568 | /* We didn't find a '.'. Return an error */ | |
10569 | if (p == base) | |
10570 | return 1; | |
10571 | ||
10572 | *p = '\0'; | |
10573 | if (right) | |
10574 | *right = get_identifier (p+1); | |
10575 | *left = get_identifier (IDENTIFIER_POINTER (source)); | |
10576 | *p = '.'; | |
10577 | ||
10578 | return 0; | |
10579 | } | |
10580 | ||
e04a16fb | 10581 | /* Patch tree nodes in a function body. When a BLOCK is found, push |
5b09b33e PB |
10582 | local variable decls if present. |
10583 | Same as java_complete_lhs, but does resolve static finals to values. */ | |
e04a16fb AG |
10584 | |
10585 | static tree | |
10586 | java_complete_tree (node) | |
10587 | tree node; | |
5b09b33e PB |
10588 | { |
10589 | node = java_complete_lhs (node); | |
10590 | if (TREE_CODE (node) == VAR_DECL && FIELD_STATIC (node) | |
7f10c2e2 APB |
10591 | && FIELD_FINAL (node) && DECL_INITIAL (node) != NULL_TREE |
10592 | && !flag_emit_xref) | |
5b09b33e PB |
10593 | { |
10594 | tree value = DECL_INITIAL (node); | |
10595 | DECL_INITIAL (node) = NULL_TREE; | |
100f7cd8 | 10596 | push_obstacks (&permanent_obstack, &permanent_obstack); |
5b09b33e | 10597 | value = fold_constant_for_init (value, node); |
100f7cd8 | 10598 | pop_obstacks (); |
5b09b33e PB |
10599 | DECL_INITIAL (node) = value; |
10600 | if (value != NULL_TREE) | |
c2952b01 APB |
10601 | { |
10602 | /* fold_constant_for_init sometimes widen the original type | |
10603 | of the constant (i.e. byte to int.) It's not desirable, | |
10604 | especially if NODE is a function argument. */ | |
10605 | if (TREE_CODE (value) == INTEGER_CST | |
10606 | && TREE_TYPE (node) != TREE_TYPE (value)) | |
10607 | return convert (TREE_TYPE (node), value); | |
10608 | else | |
10609 | return value; | |
10610 | } | |
5b09b33e PB |
10611 | } |
10612 | return node; | |
10613 | } | |
10614 | ||
2aa11e97 APB |
10615 | static tree |
10616 | java_stabilize_reference (node) | |
10617 | tree node; | |
10618 | { | |
10619 | if (TREE_CODE (node) == COMPOUND_EXPR) | |
10620 | { | |
10621 | tree op0 = TREE_OPERAND (node, 0); | |
10622 | tree op1 = TREE_OPERAND (node, 1); | |
642f15d1 | 10623 | TREE_OPERAND (node, 0) = save_expr (op0); |
2aa11e97 APB |
10624 | TREE_OPERAND (node, 1) = java_stabilize_reference (op1); |
10625 | return node; | |
10626 | } | |
5cbdba64 | 10627 | return stabilize_reference (node); |
2aa11e97 APB |
10628 | } |
10629 | ||
5b09b33e PB |
10630 | /* Patch tree nodes in a function body. When a BLOCK is found, push |
10631 | local variable decls if present. | |
10632 | Same as java_complete_tree, but does not resolve static finals to values. */ | |
10633 | ||
10634 | static tree | |
10635 | java_complete_lhs (node) | |
10636 | tree node; | |
e04a16fb | 10637 | { |
22eed1e6 | 10638 | tree nn, cn, wfl_op1, wfl_op2, wfl_op3; |
b67d701b | 10639 | int flag; |
e04a16fb AG |
10640 | |
10641 | /* CONVERT_EXPR always has its type set, even though it needs to be | |
b67d701b | 10642 | worked out. */ |
e04a16fb AG |
10643 | if (TREE_TYPE (node) && TREE_CODE (node) != CONVERT_EXPR) |
10644 | return node; | |
10645 | ||
10646 | /* The switch block implements cases processing container nodes | |
10647 | first. Contained nodes are always written back. Leaves come | |
10648 | next and return a value. */ | |
10649 | switch (TREE_CODE (node)) | |
10650 | { | |
10651 | case BLOCK: | |
10652 | ||
10653 | /* 1- Block section. | |
10654 | Set the local values on decl names so we can identify them | |
10655 | faster when they're referenced. At that stage, identifiers | |
10656 | are legal so we don't check for declaration errors. */ | |
10657 | for (cn = BLOCK_EXPR_DECLS (node); cn; cn = TREE_CHAIN (cn)) | |
10658 | { | |
10659 | DECL_CONTEXT (cn) = current_function_decl; | |
10660 | IDENTIFIER_LOCAL_VALUE (DECL_NAME (cn)) = cn; | |
e04a16fb | 10661 | } |
15fdcfe9 PB |
10662 | if (BLOCK_EXPR_BODY (node) == NULL_TREE) |
10663 | CAN_COMPLETE_NORMALLY (node) = 1; | |
10664 | else | |
e04a16fb | 10665 | { |
15fdcfe9 PB |
10666 | tree stmt = BLOCK_EXPR_BODY (node); |
10667 | tree *ptr; | |
10668 | int error_seen = 0; | |
10669 | if (TREE_CODE (stmt) == COMPOUND_EXPR) | |
10670 | { | |
c877974e APB |
10671 | /* Re-order from (((A; B); C); ...; Z) to |
10672 | (A; (B; (C ; (...; Z)))). | |
15fdcfe9 PB |
10673 | This makes it easier to scan the statements left-to-right |
10674 | without using recursion (which might overflow the stack | |
10675 | if the block has many statements. */ | |
10676 | for (;;) | |
10677 | { | |
10678 | tree left = TREE_OPERAND (stmt, 0); | |
10679 | if (TREE_CODE (left) != COMPOUND_EXPR) | |
10680 | break; | |
10681 | TREE_OPERAND (stmt, 0) = TREE_OPERAND (left, 1); | |
10682 | TREE_OPERAND (left, 1) = stmt; | |
10683 | stmt = left; | |
10684 | } | |
10685 | BLOCK_EXPR_BODY (node) = stmt; | |
10686 | } | |
10687 | ||
c877974e APB |
10688 | /* Now do the actual complete, without deep recursion for |
10689 | long blocks. */ | |
15fdcfe9 | 10690 | ptr = &BLOCK_EXPR_BODY (node); |
dc0b3eff PB |
10691 | while (TREE_CODE (*ptr) == COMPOUND_EXPR |
10692 | && TREE_OPERAND (*ptr, 1) != empty_stmt_node) | |
15fdcfe9 PB |
10693 | { |
10694 | tree cur = java_complete_tree (TREE_OPERAND (*ptr, 0)); | |
10695 | tree *next = &TREE_OPERAND (*ptr, 1); | |
10696 | TREE_OPERAND (*ptr, 0) = cur; | |
cd9643f7 PB |
10697 | if (cur == empty_stmt_node) |
10698 | { | |
10699 | /* Optimization; makes it easier to detect empty bodies. | |
10700 | Most useful for <clinit> with all-constant initializer. */ | |
10701 | *ptr = *next; | |
10702 | continue; | |
10703 | } | |
15fdcfe9 PB |
10704 | if (TREE_CODE (cur) == ERROR_MARK) |
10705 | error_seen++; | |
10706 | else if (! CAN_COMPLETE_NORMALLY (cur)) | |
10707 | { | |
10708 | wfl_op2 = *next; | |
10709 | for (;;) | |
10710 | { | |
10711 | if (TREE_CODE (wfl_op2) == BLOCK) | |
10712 | wfl_op2 = BLOCK_EXPR_BODY (wfl_op2); | |
10713 | else if (TREE_CODE (wfl_op2) == COMPOUND_EXPR) | |
10714 | wfl_op2 = TREE_OPERAND (wfl_op2, 0); | |
10715 | else | |
10716 | break; | |
10717 | } | |
10718 | if (TREE_CODE (wfl_op2) != CASE_EXPR | |
dc0b3eff | 10719 | && TREE_CODE (wfl_op2) != DEFAULT_EXPR) |
82371d41 | 10720 | unreachable_stmt_error (*ptr); |
15fdcfe9 PB |
10721 | } |
10722 | ptr = next; | |
10723 | } | |
10724 | *ptr = java_complete_tree (*ptr); | |
10725 | ||
10726 | if (TREE_CODE (*ptr) == ERROR_MARK || error_seen > 0) | |
e04a16fb | 10727 | return error_mark_node; |
15fdcfe9 | 10728 | CAN_COMPLETE_NORMALLY (node) = CAN_COMPLETE_NORMALLY (*ptr); |
e04a16fb AG |
10729 | } |
10730 | /* Turn local bindings to null */ | |
10731 | for (cn = BLOCK_EXPR_DECLS (node); cn; cn = TREE_CHAIN (cn)) | |
10732 | IDENTIFIER_LOCAL_VALUE (DECL_NAME (cn)) = NULL_TREE; | |
10733 | ||
10734 | TREE_TYPE (node) = void_type_node; | |
10735 | break; | |
10736 | ||
10737 | /* 2- They are expressions but ultimately deal with statements */ | |
b67d701b | 10738 | |
b9f7e36c APB |
10739 | case THROW_EXPR: |
10740 | wfl_op1 = TREE_OPERAND (node, 0); | |
10741 | COMPLETE_CHECK_OP_0 (node); | |
c2952b01 APB |
10742 | /* 14.19 A throw statement cannot complete normally. */ |
10743 | CAN_COMPLETE_NORMALLY (node) = 0; | |
b9f7e36c APB |
10744 | return patch_throw_statement (node, wfl_op1); |
10745 | ||
10746 | case SYNCHRONIZED_EXPR: | |
10747 | wfl_op1 = TREE_OPERAND (node, 0); | |
b9f7e36c APB |
10748 | return patch_synchronized_statement (node, wfl_op1); |
10749 | ||
b67d701b PB |
10750 | case TRY_EXPR: |
10751 | return patch_try_statement (node); | |
10752 | ||
a7d8d81f PB |
10753 | case TRY_FINALLY_EXPR: |
10754 | COMPLETE_CHECK_OP_0 (node); | |
10755 | COMPLETE_CHECK_OP_1 (node); | |
10756 | CAN_COMPLETE_NORMALLY (node) | |
10757 | = (CAN_COMPLETE_NORMALLY (TREE_OPERAND (node, 0)) | |
10758 | && CAN_COMPLETE_NORMALLY (TREE_OPERAND (node, 1))); | |
10759 | TREE_TYPE (node) = TREE_TYPE (TREE_OPERAND (node, 0)); | |
10760 | return node; | |
10761 | ||
5a005d9e PB |
10762 | case CLEANUP_POINT_EXPR: |
10763 | COMPLETE_CHECK_OP_0 (node); | |
10764 | TREE_TYPE (node) = void_type_node; | |
2aa11e97 APB |
10765 | CAN_COMPLETE_NORMALLY (node) = |
10766 | CAN_COMPLETE_NORMALLY (TREE_OPERAND (node, 0)); | |
5a005d9e PB |
10767 | return node; |
10768 | ||
10769 | case WITH_CLEANUP_EXPR: | |
10770 | COMPLETE_CHECK_OP_0 (node); | |
10771 | COMPLETE_CHECK_OP_2 (node); | |
2aa11e97 APB |
10772 | CAN_COMPLETE_NORMALLY (node) = |
10773 | CAN_COMPLETE_NORMALLY (TREE_OPERAND (node, 0)); | |
5a005d9e PB |
10774 | TREE_TYPE (node) = void_type_node; |
10775 | return node; | |
10776 | ||
e04a16fb AG |
10777 | case LABELED_BLOCK_EXPR: |
10778 | PUSH_LABELED_BLOCK (node); | |
10779 | if (LABELED_BLOCK_BODY (node)) | |
10780 | COMPLETE_CHECK_OP_1 (node); | |
10781 | TREE_TYPE (node) = void_type_node; | |
10782 | POP_LABELED_BLOCK (); | |
1fb89a4d APB |
10783 | |
10784 | if (LABELED_BLOCK_BODY (node) == empty_stmt_node) | |
9dd939b2 APB |
10785 | { |
10786 | LABELED_BLOCK_BODY (node) = NULL_TREE; | |
10787 | CAN_COMPLETE_NORMALLY (node) = 1; | |
10788 | } | |
1fb89a4d | 10789 | else if (CAN_COMPLETE_NORMALLY (LABELED_BLOCK_BODY (node))) |
15fdcfe9 | 10790 | CAN_COMPLETE_NORMALLY (node) = 1; |
e04a16fb AG |
10791 | return node; |
10792 | ||
10793 | case EXIT_BLOCK_EXPR: | |
10794 | /* We don't complete operand 1, because it's the return value of | |
10795 | the EXIT_BLOCK_EXPR which doesn't exist it Java */ | |
10796 | return patch_bc_statement (node); | |
10797 | ||
15fdcfe9 PB |
10798 | case CASE_EXPR: |
10799 | cn = java_complete_tree (TREE_OPERAND (node, 0)); | |
10800 | if (cn == error_mark_node) | |
10801 | return cn; | |
10802 | ||
8576f094 APB |
10803 | /* First, the case expression must be constant. Values of final |
10804 | fields are accepted. */ | |
15fdcfe9 | 10805 | cn = fold (cn); |
8576f094 APB |
10806 | if ((TREE_CODE (cn) == COMPOUND_EXPR || TREE_CODE (cn) == COMPONENT_REF) |
10807 | && JDECL_P (TREE_OPERAND (cn, 1)) | |
10808 | && FIELD_FINAL (TREE_OPERAND (cn, 1)) | |
10809 | && DECL_INITIAL (TREE_OPERAND (cn, 1))) | |
100f7cd8 APB |
10810 | { |
10811 | push_obstacks (&permanent_obstack, &permanent_obstack); | |
10812 | cn = fold_constant_for_init (DECL_INITIAL (TREE_OPERAND (cn, 1)), | |
10813 | TREE_OPERAND (cn, 1)); | |
10814 | pop_obstacks (); | |
10815 | } | |
15fdcfe9 | 10816 | |
ce6e9147 | 10817 | if (!TREE_CONSTANT (cn) && !flag_emit_xref) |
15fdcfe9 PB |
10818 | { |
10819 | EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node); | |
10820 | parse_error_context (node, "Constant expression required"); | |
10821 | return error_mark_node; | |
10822 | } | |
10823 | ||
10824 | nn = ctxp->current_loop; | |
10825 | ||
10826 | /* It must be assignable to the type of the switch expression. */ | |
c877974e APB |
10827 | if (!try_builtin_assignconv (NULL_TREE, |
10828 | TREE_TYPE (TREE_OPERAND (nn, 0)), cn)) | |
15fdcfe9 PB |
10829 | { |
10830 | EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node); | |
10831 | parse_error_context | |
10832 | (wfl_operator, | |
10833 | "Incompatible type for case. Can't convert `%s' to `int'", | |
10834 | lang_printable_name (TREE_TYPE (cn), 0)); | |
10835 | return error_mark_node; | |
10836 | } | |
10837 | ||
10838 | cn = fold (convert (int_type_node, cn)); | |
10839 | ||
10840 | /* Multiple instance of a case label bearing the same | |
10841 | value is checked during code generation. The case | |
10842 | expression is allright so far. */ | |
10843 | TREE_OPERAND (node, 0) = cn; | |
9bbc7d9f | 10844 | TREE_TYPE (node) = void_type_node; |
15fdcfe9 | 10845 | CAN_COMPLETE_NORMALLY (node) = 1; |
10100cc7 | 10846 | TREE_SIDE_EFFECTS (node) = 1; |
15fdcfe9 PB |
10847 | break; |
10848 | ||
10849 | case DEFAULT_EXPR: | |
10850 | nn = ctxp->current_loop; | |
10851 | /* Only one default label is allowed per switch statement */ | |
10852 | if (SWITCH_HAS_DEFAULT (nn)) | |
10853 | { | |
10854 | EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node); | |
10855 | parse_error_context (wfl_operator, | |
10856 | "Duplicate case label: `default'"); | |
10857 | return error_mark_node; | |
10858 | } | |
10859 | else | |
10860 | SWITCH_HAS_DEFAULT (nn) = 1; | |
9bbc7d9f | 10861 | TREE_TYPE (node) = void_type_node; |
10100cc7 | 10862 | TREE_SIDE_EFFECTS (node) = 1; |
15fdcfe9 PB |
10863 | CAN_COMPLETE_NORMALLY (node) = 1; |
10864 | break; | |
10865 | ||
b67d701b | 10866 | case SWITCH_EXPR: |
e04a16fb AG |
10867 | case LOOP_EXPR: |
10868 | PUSH_LOOP (node); | |
10869 | /* Check whether the loop was enclosed in a labeled | |
10870 | statement. If not, create one, insert the loop in it and | |
10871 | return the node */ | |
10872 | nn = patch_loop_statement (node); | |
b67d701b | 10873 | |
e04a16fb | 10874 | /* Anyways, walk the body of the loop */ |
b67d701b PB |
10875 | if (TREE_CODE (node) == LOOP_EXPR) |
10876 | TREE_OPERAND (node, 0) = java_complete_tree (TREE_OPERAND (node, 0)); | |
10877 | /* Switch statement: walk the switch expression and the cases */ | |
10878 | else | |
10879 | node = patch_switch_statement (node); | |
10880 | ||
e04a16fb | 10881 | if (TREE_OPERAND (node, 0) == error_mark_node) |
b635eb2f PB |
10882 | nn = error_mark_node; |
10883 | else | |
15fdcfe9 | 10884 | { |
b635eb2f PB |
10885 | TREE_TYPE (nn) = TREE_TYPE (node) = void_type_node; |
10886 | /* If we returned something different, that's because we | |
10887 | inserted a label. Pop the label too. */ | |
10888 | if (nn != node) | |
10889 | { | |
10890 | if (CAN_COMPLETE_NORMALLY (node)) | |
10891 | CAN_COMPLETE_NORMALLY (nn) = 1; | |
10892 | POP_LABELED_BLOCK (); | |
10893 | } | |
15fdcfe9 | 10894 | } |
e04a16fb AG |
10895 | POP_LOOP (); |
10896 | return nn; | |
10897 | ||
10898 | case EXIT_EXPR: | |
10899 | TREE_OPERAND (node, 0) = java_complete_tree (TREE_OPERAND (node, 0)); | |
10900 | return patch_exit_expr (node); | |
10901 | ||
10902 | case COND_EXPR: | |
10903 | /* Condition */ | |
10904 | TREE_OPERAND (node, 0) = java_complete_tree (TREE_OPERAND (node, 0)); | |
10905 | if (TREE_OPERAND (node, 0) == error_mark_node) | |
10906 | return error_mark_node; | |
10907 | /* then-else branches */ | |
10908 | TREE_OPERAND (node, 1) = java_complete_tree (TREE_OPERAND (node, 1)); | |
10909 | if (TREE_OPERAND (node, 1) == error_mark_node) | |
10910 | return error_mark_node; | |
10911 | TREE_OPERAND (node, 2) = java_complete_tree (TREE_OPERAND (node, 2)); | |
10912 | if (TREE_OPERAND (node, 2) == error_mark_node) | |
10913 | return error_mark_node; | |
10914 | return patch_if_else_statement (node); | |
10915 | break; | |
10916 | ||
22eed1e6 APB |
10917 | case CONDITIONAL_EXPR: |
10918 | /* Condition */ | |
10919 | wfl_op1 = TREE_OPERAND (node, 0); | |
10920 | COMPLETE_CHECK_OP_0 (node); | |
10921 | wfl_op2 = TREE_OPERAND (node, 1); | |
10922 | COMPLETE_CHECK_OP_1 (node); | |
10923 | wfl_op3 = TREE_OPERAND (node, 2); | |
10924 | COMPLETE_CHECK_OP_2 (node); | |
10925 | return patch_conditional_expr (node, wfl_op1, wfl_op2); | |
10926 | ||
e04a16fb AG |
10927 | /* 3- Expression section */ |
10928 | case COMPOUND_EXPR: | |
15fdcfe9 | 10929 | wfl_op2 = TREE_OPERAND (node, 1); |
ac825856 APB |
10930 | TREE_OPERAND (node, 0) = nn = |
10931 | java_complete_tree (TREE_OPERAND (node, 0)); | |
dc0b3eff PB |
10932 | if (wfl_op2 == empty_stmt_node) |
10933 | CAN_COMPLETE_NORMALLY (node) = CAN_COMPLETE_NORMALLY (nn); | |
10934 | else | |
15fdcfe9 | 10935 | { |
dc0b3eff | 10936 | if (! CAN_COMPLETE_NORMALLY (nn) && TREE_CODE (nn) != ERROR_MARK) |
bccaf73a | 10937 | { |
dc0b3eff PB |
10938 | /* An unreachable condition in a do-while statement |
10939 | is *not* (technically) an unreachable statement. */ | |
10940 | nn = wfl_op2; | |
10941 | if (TREE_CODE (nn) == EXPR_WITH_FILE_LOCATION) | |
10942 | nn = EXPR_WFL_NODE (nn); | |
10943 | if (TREE_CODE (nn) != EXIT_EXPR) | |
10944 | { | |
10945 | SET_WFL_OPERATOR (wfl_operator, node, wfl_op2); | |
10946 | parse_error_context (wfl_operator, "Unreachable statement"); | |
10947 | } | |
bccaf73a | 10948 | } |
dc0b3eff PB |
10949 | TREE_OPERAND (node, 1) = java_complete_tree (TREE_OPERAND (node, 1)); |
10950 | if (TREE_OPERAND (node, 1) == error_mark_node) | |
10951 | return error_mark_node; | |
10952 | CAN_COMPLETE_NORMALLY (node) | |
10953 | = CAN_COMPLETE_NORMALLY (TREE_OPERAND (node, 1)); | |
15fdcfe9 | 10954 | } |
e04a16fb AG |
10955 | TREE_TYPE (node) = TREE_TYPE (TREE_OPERAND (node, 1)); |
10956 | break; | |
10957 | ||
10958 | case RETURN_EXPR: | |
15fdcfe9 | 10959 | /* CAN_COMPLETE_NORMALLY (node) = 0; */ |
e04a16fb AG |
10960 | return patch_return (node); |
10961 | ||
10962 | case EXPR_WITH_FILE_LOCATION: | |
10963 | if (!EXPR_WFL_NODE (node) /* Or a PRIMARY flag ? */ | |
10964 | || TREE_CODE (EXPR_WFL_NODE (node)) == IDENTIFIER_NODE) | |
15fdcfe9 | 10965 | { |
5423609c | 10966 | tree wfl = node; |
15fdcfe9 | 10967 | node = resolve_expression_name (node, NULL); |
dc0b3eff PB |
10968 | if (node == error_mark_node) |
10969 | return node; | |
5423609c APB |
10970 | /* Keep line number information somewhere were it doesn't |
10971 | disrupt the completion process. */ | |
2c56429a | 10972 | if (flag_emit_xref && TREE_CODE (node) != CALL_EXPR) |
5423609c APB |
10973 | { |
10974 | EXPR_WFL_NODE (wfl) = TREE_OPERAND (node, 1); | |
10975 | TREE_OPERAND (node, 1) = wfl; | |
10976 | } | |
15fdcfe9 PB |
10977 | CAN_COMPLETE_NORMALLY (node) = 1; |
10978 | } | |
e04a16fb AG |
10979 | else |
10980 | { | |
5b09b33e PB |
10981 | tree body; |
10982 | int save_lineno = lineno; | |
10983 | lineno = EXPR_WFL_LINENO (node); | |
10984 | body = java_complete_tree (EXPR_WFL_NODE (node)); | |
10985 | lineno = save_lineno; | |
15fdcfe9 | 10986 | EXPR_WFL_NODE (node) = body; |
dc0b3eff | 10987 | TREE_SIDE_EFFECTS (node) = TREE_SIDE_EFFECTS (body); |
15fdcfe9 | 10988 | CAN_COMPLETE_NORMALLY (node) = CAN_COMPLETE_NORMALLY (body); |
cd9643f7 PB |
10989 | if (body == empty_stmt_node) |
10990 | { | |
10991 | /* Optimization; makes it easier to detect empty bodies. */ | |
10992 | return body; | |
10993 | } | |
dc0b3eff | 10994 | if (body == error_mark_node) |
e04a16fb AG |
10995 | { |
10996 | /* Its important for the evaluation of assignment that | |
10997 | this mark on the TREE_TYPE is propagated. */ | |
10998 | TREE_TYPE (node) = error_mark_node; | |
10999 | return error_mark_node; | |
11000 | } | |
11001 | else | |
11002 | TREE_TYPE (node) = TREE_TYPE (EXPR_WFL_NODE (node)); | |
15fdcfe9 | 11003 | |
e04a16fb AG |
11004 | } |
11005 | break; | |
11006 | ||
b67d701b | 11007 | case NEW_ARRAY_EXPR: |
e04a16fb AG |
11008 | /* Patch all the dimensions */ |
11009 | flag = 0; | |
11010 | for (cn = TREE_OPERAND (node, 1); cn; cn = TREE_CHAIN (cn)) | |
11011 | { | |
11012 | int location = EXPR_WFL_LINECOL (TREE_VALUE (cn)); | |
3a1760ac APB |
11013 | tree dim = convert (int_type_node, |
11014 | java_complete_tree (TREE_VALUE (cn))); | |
e04a16fb AG |
11015 | if (dim == error_mark_node) |
11016 | { | |
11017 | flag = 1; | |
11018 | continue; | |
11019 | } | |
11020 | else | |
11021 | { | |
b9f7e36c | 11022 | TREE_VALUE (cn) = dim; |
e04a16fb AG |
11023 | /* Setup the location of the current dimension, for |
11024 | later error report. */ | |
11025 | TREE_PURPOSE (cn) = | |
11026 | build_expr_wfl (NULL_TREE, input_filename, 0, 0); | |
11027 | EXPR_WFL_LINECOL (TREE_PURPOSE (cn)) = location; | |
11028 | } | |
11029 | } | |
11030 | /* They complete the array creation expression, if no errors | |
11031 | were found. */ | |
15fdcfe9 | 11032 | CAN_COMPLETE_NORMALLY (node) = 1; |
aee48ef8 PB |
11033 | return (flag ? error_mark_node |
11034 | : force_evaluation_order (patch_newarray (node))); | |
e04a16fb | 11035 | |
c2952b01 APB |
11036 | case NEW_ANONYMOUS_ARRAY_EXPR: |
11037 | /* Create the array type if necessary. */ | |
11038 | if (ANONYMOUS_ARRAY_DIMS_SIG (node)) | |
11039 | { | |
11040 | tree type = ANONYMOUS_ARRAY_BASE_TYPE (node); | |
11041 | if (!(type = resolve_type_during_patch (type))) | |
11042 | return error_mark_node; | |
11043 | type = build_array_from_name (type, NULL_TREE, | |
11044 | ANONYMOUS_ARRAY_DIMS_SIG (node), NULL); | |
11045 | ANONYMOUS_ARRAY_BASE_TYPE (node) = build_pointer_type (type); | |
11046 | } | |
11047 | node = patch_new_array_init (ANONYMOUS_ARRAY_BASE_TYPE (node), | |
11048 | ANONYMOUS_ARRAY_INITIALIZER (node)); | |
11049 | if (node == error_mark_node) | |
11050 | return error_mark_node; | |
11051 | CAN_COMPLETE_NORMALLY (node) = 1; | |
11052 | return node; | |
11053 | ||
b67d701b | 11054 | case NEW_CLASS_EXPR: |
e04a16fb | 11055 | case CALL_EXPR: |
b67d701b | 11056 | /* Complete function's argument(s) first */ |
e04a16fb AG |
11057 | if (complete_function_arguments (node)) |
11058 | return error_mark_node; | |
11059 | else | |
b9f7e36c | 11060 | { |
22eed1e6 APB |
11061 | tree decl, wfl = TREE_OPERAND (node, 0); |
11062 | int in_this = CALL_THIS_CONSTRUCTOR_P (node); | |
11063 | ||
c877974e | 11064 | node = patch_method_invocation (node, NULL_TREE, |
89e09b9a | 11065 | NULL_TREE, 0, &decl); |
c877974e APB |
11066 | if (node == error_mark_node) |
11067 | return error_mark_node; | |
11068 | ||
11069 | check_thrown_exceptions (EXPR_WFL_LINECOL (node), decl); | |
11070 | /* If we call this(...), register signature and positions */ | |
11071 | if (in_this) | |
11072 | DECL_CONSTRUCTOR_CALLS (current_function_decl) = | |
11073 | tree_cons (wfl, decl, | |
11074 | DECL_CONSTRUCTOR_CALLS (current_function_decl)); | |
de4c7b02 | 11075 | CAN_COMPLETE_NORMALLY (node) = 1; |
dc0b3eff | 11076 | return force_evaluation_order (node); |
b9f7e36c | 11077 | } |
e04a16fb AG |
11078 | |
11079 | case MODIFY_EXPR: | |
11080 | /* Save potential wfls */ | |
11081 | wfl_op1 = TREE_OPERAND (node, 0); | |
cd9643f7 | 11082 | TREE_OPERAND (node, 0) = nn = java_complete_lhs (wfl_op1); |
c2952b01 | 11083 | |
cd9643f7 PB |
11084 | if (MODIFY_EXPR_FROM_INITIALIZATION_P (node) |
11085 | && TREE_CODE (nn) == VAR_DECL && TREE_STATIC (nn) | |
11086 | && DECL_INITIAL (nn) != NULL_TREE) | |
11087 | { | |
100f7cd8 APB |
11088 | tree value; |
11089 | ||
11090 | push_obstacks (&permanent_obstack, &permanent_obstack); | |
11091 | value = fold_constant_for_init (nn, nn); | |
11092 | pop_obstacks (); | |
c2952b01 | 11093 | |
cd9643f7 PB |
11094 | if (value != NULL_TREE) |
11095 | { | |
11096 | tree type = TREE_TYPE (value); | |
c2952b01 APB |
11097 | if (JPRIMITIVE_TYPE_P (type) || |
11098 | (type == string_ptr_type_node && ! flag_emit_class_files)) | |
cd9643f7 PB |
11099 | return empty_stmt_node; |
11100 | } | |
11101 | DECL_INITIAL (nn) = NULL_TREE; | |
11102 | } | |
e04a16fb | 11103 | wfl_op2 = TREE_OPERAND (node, 1); |
cd9643f7 | 11104 | |
e04a16fb AG |
11105 | if (TREE_OPERAND (node, 0) == error_mark_node) |
11106 | return error_mark_node; | |
11107 | ||
5cbdba64 APB |
11108 | flag = COMPOUND_ASSIGN_P (wfl_op2); |
11109 | if (flag) | |
e04a16fb | 11110 | { |
c2952b01 APB |
11111 | /* This might break when accessing outer field from inner |
11112 | class. TESTME, FIXME */ | |
2aa11e97 | 11113 | tree lvalue = java_stabilize_reference (TREE_OPERAND (node, 0)); |
e04a16fb AG |
11114 | |
11115 | /* Hand stablize the lhs on both places */ | |
e04a16fb | 11116 | TREE_OPERAND (node, 0) = lvalue; |
5cbdba64 APB |
11117 | TREE_OPERAND (TREE_OPERAND (node, 1), 0) = |
11118 | (flag_emit_class_files ? lvalue : save_expr (lvalue)); | |
2aa11e97 | 11119 | |
5cbdba64 | 11120 | /* 15.25.2.a: Left hand is not an array access. FIXME */ |
2aa11e97 APB |
11121 | /* Now complete the RHS. We write it back later on. */ |
11122 | nn = java_complete_tree (TREE_OPERAND (node, 1)); | |
11123 | ||
642f15d1 APB |
11124 | if ((cn = patch_string (nn))) |
11125 | nn = cn; | |
11126 | ||
2aa11e97 APB |
11127 | /* The last part of the rewrite for E1 op= E2 is to have |
11128 | E1 = (T)(E1 op E2), with T being the type of E1. */ | |
642f15d1 APB |
11129 | nn = java_complete_tree (build_cast (EXPR_WFL_LINECOL (wfl_op2), |
11130 | TREE_TYPE (lvalue), nn)); | |
5cbdba64 APB |
11131 | |
11132 | /* 15.25.2.b: Left hand is an array access. FIXME */ | |
e04a16fb AG |
11133 | } |
11134 | ||
f8976021 | 11135 | /* If we're about to patch a NEW_ARRAY_INIT, we call a special |
c2952b01 APB |
11136 | function to complete this RHS. Note that a NEW_ARRAY_INIT |
11137 | might have been already fully expanded if created as a result | |
11138 | of processing an anonymous array initializer. We avoid doing | |
11139 | the operation twice by testing whether the node already bears | |
11140 | a type. */ | |
11141 | else if (TREE_CODE (wfl_op2) == NEW_ARRAY_INIT && !TREE_TYPE (wfl_op2)) | |
fdec99c6 | 11142 | nn = patch_new_array_init (TREE_TYPE (TREE_OPERAND (node, 0)), |
f8976021 | 11143 | TREE_OPERAND (node, 1)); |
2aa11e97 | 11144 | /* Otherwise we simply complete the RHS */ |
f8976021 APB |
11145 | else |
11146 | nn = java_complete_tree (TREE_OPERAND (node, 1)); | |
11147 | ||
e04a16fb | 11148 | if (nn == error_mark_node) |
c0d87ff6 | 11149 | return error_mark_node; |
2aa11e97 APB |
11150 | |
11151 | /* Write back the RHS as we evaluated it. */ | |
e04a16fb | 11152 | TREE_OPERAND (node, 1) = nn; |
b67d701b PB |
11153 | |
11154 | /* In case we're handling = with a String as a RHS, we need to | |
11155 | produce a String out of the RHS (it might still be a | |
11156 | STRING_CST or a StringBuffer at this stage */ | |
11157 | if ((nn = patch_string (TREE_OPERAND (node, 1)))) | |
11158 | TREE_OPERAND (node, 1) = nn; | |
c2952b01 APB |
11159 | |
11160 | if ((nn = outer_field_access_fix (wfl_op1, TREE_OPERAND (node, 0), | |
11161 | TREE_OPERAND (node, 1)))) | |
11162 | { | |
11163 | /* We return error_mark_node if outer_field_access_fix | |
11164 | detects we write into a final. */ | |
11165 | if (nn == error_mark_node) | |
11166 | return error_mark_node; | |
11167 | node = nn; | |
11168 | } | |
11169 | else | |
11170 | { | |
11171 | node = patch_assignment (node, wfl_op1, wfl_op2); | |
11172 | /* Reorganize the tree if necessary. */ | |
11173 | if (flag && (!JREFERENCE_TYPE_P (TREE_TYPE (node)) | |
11174 | || JSTRING_P (TREE_TYPE (node)))) | |
11175 | node = java_refold (node); | |
11176 | } | |
11177 | ||
15fdcfe9 PB |
11178 | CAN_COMPLETE_NORMALLY (node) = 1; |
11179 | return node; | |
e04a16fb AG |
11180 | |
11181 | case MULT_EXPR: | |
11182 | case PLUS_EXPR: | |
11183 | case MINUS_EXPR: | |
11184 | case LSHIFT_EXPR: | |
11185 | case RSHIFT_EXPR: | |
11186 | case URSHIFT_EXPR: | |
11187 | case BIT_AND_EXPR: | |
11188 | case BIT_XOR_EXPR: | |
11189 | case BIT_IOR_EXPR: | |
11190 | case TRUNC_MOD_EXPR: | |
c2952b01 | 11191 | case TRUNC_DIV_EXPR: |
e04a16fb AG |
11192 | case RDIV_EXPR: |
11193 | case TRUTH_ANDIF_EXPR: | |
11194 | case TRUTH_ORIF_EXPR: | |
11195 | case EQ_EXPR: | |
11196 | case NE_EXPR: | |
11197 | case GT_EXPR: | |
11198 | case GE_EXPR: | |
11199 | case LT_EXPR: | |
11200 | case LE_EXPR: | |
11201 | /* Operands 0 and 1 are WFL in certain cases only. patch_binop | |
11202 | knows how to handle those cases. */ | |
11203 | wfl_op1 = TREE_OPERAND (node, 0); | |
11204 | wfl_op2 = TREE_OPERAND (node, 1); | |
b67d701b | 11205 | |
15fdcfe9 | 11206 | CAN_COMPLETE_NORMALLY (node) = 1; |
b67d701b PB |
11207 | /* Don't complete string nodes if dealing with the PLUS operand. */ |
11208 | if (TREE_CODE (node) != PLUS_EXPR || !JSTRING_P (wfl_op1)) | |
2aa11e97 APB |
11209 | { |
11210 | nn = java_complete_tree (wfl_op1); | |
11211 | if (nn == error_mark_node) | |
11212 | return error_mark_node; | |
48a840d9 | 11213 | |
2aa11e97 APB |
11214 | TREE_OPERAND (node, 0) = nn; |
11215 | } | |
b67d701b | 11216 | if (TREE_CODE (node) != PLUS_EXPR || !JSTRING_P (wfl_op2)) |
2aa11e97 APB |
11217 | { |
11218 | nn = java_complete_tree (wfl_op2); | |
11219 | if (nn == error_mark_node) | |
11220 | return error_mark_node; | |
48a840d9 | 11221 | |
2aa11e97 APB |
11222 | TREE_OPERAND (node, 1) = nn; |
11223 | } | |
dc0b3eff | 11224 | return force_evaluation_order (patch_binop (node, wfl_op1, wfl_op2)); |
e04a16fb | 11225 | |
5e942c50 APB |
11226 | case INSTANCEOF_EXPR: |
11227 | wfl_op1 = TREE_OPERAND (node, 0); | |
11228 | COMPLETE_CHECK_OP_0 (node); | |
ce6e9147 APB |
11229 | if (flag_emit_xref) |
11230 | { | |
11231 | TREE_TYPE (node) = boolean_type_node; | |
11232 | return node; | |
11233 | } | |
5e942c50 APB |
11234 | return patch_binop (node, wfl_op1, TREE_OPERAND (node, 1)); |
11235 | ||
b67d701b | 11236 | case UNARY_PLUS_EXPR: |
e04a16fb AG |
11237 | case NEGATE_EXPR: |
11238 | case TRUTH_NOT_EXPR: | |
11239 | case BIT_NOT_EXPR: | |
11240 | case PREDECREMENT_EXPR: | |
11241 | case PREINCREMENT_EXPR: | |
11242 | case POSTDECREMENT_EXPR: | |
11243 | case POSTINCREMENT_EXPR: | |
11244 | case CONVERT_EXPR: | |
11245 | /* There are cases were wfl_op1 is a WFL. patch_unaryop knows | |
11246 | how to handle those cases. */ | |
11247 | wfl_op1 = TREE_OPERAND (node, 0); | |
15fdcfe9 | 11248 | CAN_COMPLETE_NORMALLY (node) = 1; |
e04a16fb AG |
11249 | TREE_OPERAND (node, 0) = java_complete_tree (wfl_op1); |
11250 | if (TREE_OPERAND (node, 0) == error_mark_node) | |
11251 | return error_mark_node; | |
4a5f66c3 APB |
11252 | node = patch_unaryop (node, wfl_op1); |
11253 | CAN_COMPLETE_NORMALLY (node) = 1; | |
11254 | break; | |
e04a16fb AG |
11255 | |
11256 | case ARRAY_REF: | |
11257 | /* There are cases were wfl_op1 is a WFL. patch_array_ref knows | |
11258 | how to handle those cases. */ | |
11259 | wfl_op1 = TREE_OPERAND (node, 0); | |
11260 | TREE_OPERAND (node, 0) = java_complete_tree (wfl_op1); | |
11261 | if (TREE_OPERAND (node, 0) == error_mark_node) | |
11262 | return error_mark_node; | |
7f1d4866 | 11263 | if (!flag_emit_class_files && !flag_emit_xref) |
b67d701b | 11264 | TREE_OPERAND (node, 0) = save_expr (TREE_OPERAND (node, 0)); |
e04a16fb AG |
11265 | /* The same applies to wfl_op2 */ |
11266 | wfl_op2 = TREE_OPERAND (node, 1); | |
11267 | TREE_OPERAND (node, 1) = java_complete_tree (wfl_op2); | |
11268 | if (TREE_OPERAND (node, 1) == error_mark_node) | |
11269 | return error_mark_node; | |
7f1d4866 | 11270 | if (!flag_emit_class_files && !flag_emit_xref) |
22eed1e6 | 11271 | TREE_OPERAND (node, 1) = save_expr (TREE_OPERAND (node, 1)); |
939d7216 | 11272 | return patch_array_ref (node); |
e04a16fb | 11273 | |
63a212ed PB |
11274 | case RECORD_TYPE: |
11275 | return node;; | |
11276 | ||
11277 | case COMPONENT_REF: | |
11278 | /* The first step in the re-write of qualified name handling. FIXME. | |
11279 | So far, this is only to support PRIMTYPE.class -> PRIMCLASS.TYPE. */ | |
9bbc7d9f | 11280 | TREE_OPERAND (node, 0) = java_complete_tree (TREE_OPERAND (node, 0)); |
63a212ed PB |
11281 | if (TREE_CODE (TREE_OPERAND (node, 0)) == RECORD_TYPE) |
11282 | { | |
11283 | tree name = TREE_OPERAND (node, 1); | |
11284 | tree field = lookup_field_wrapper (TREE_OPERAND (node, 0), name); | |
11285 | if (field == NULL_TREE) | |
11286 | { | |
11287 | error ("missing static field `%s'", IDENTIFIER_POINTER (name)); | |
11288 | return error_mark_node; | |
11289 | } | |
11290 | if (! FIELD_STATIC (field)) | |
11291 | { | |
11292 | error ("not a static field `%s'", IDENTIFIER_POINTER (name)); | |
11293 | return error_mark_node; | |
11294 | } | |
11295 | return field; | |
11296 | } | |
11297 | else | |
11298 | fatal ("unimplemented java_complete_tree for COMPONENT_REF"); | |
9bbc7d9f | 11299 | break; |
9bbc7d9f | 11300 | |
b67d701b | 11301 | case THIS_EXPR: |
e04a16fb AG |
11302 | /* Can't use THIS in a static environment */ |
11303 | if (!current_this) | |
11304 | { | |
11305 | EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node); | |
781b0558 KG |
11306 | parse_error_context (wfl_operator, |
11307 | "Keyword `this' used outside allowed context"); | |
e04a16fb AG |
11308 | TREE_TYPE (node) = error_mark_node; |
11309 | return error_mark_node; | |
11310 | } | |
22eed1e6 APB |
11311 | if (ctxp->explicit_constructor_p) |
11312 | { | |
11313 | EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node); | |
11314 | parse_error_context | |
781b0558 | 11315 | (wfl_operator, "Can't reference `this' or `super' before the superclass constructor has been called"); |
22eed1e6 APB |
11316 | TREE_TYPE (node) = error_mark_node; |
11317 | return error_mark_node; | |
11318 | } | |
e04a16fb | 11319 | return current_this; |
c2952b01 APB |
11320 | |
11321 | case CLASS_LITERAL: | |
11322 | CAN_COMPLETE_NORMALLY (node) = 1; | |
11323 | node = patch_incomplete_class_ref (node); | |
11324 | if (node == error_mark_node) | |
11325 | return error_mark_node; | |
11326 | break; | |
11327 | ||
11328 | case INSTANCE_INITIALIZERS_EXPR: | |
11329 | in_instance_initializer++; | |
11330 | node = java_complete_tree (TREE_OPERAND (node, 0)); | |
11331 | in_instance_initializer--; | |
11332 | if (node != error_mark_node) | |
11333 | TREE_TYPE (node) = void_type_node; | |
11334 | else | |
11335 | return error_mark_node; | |
11336 | break; | |
e04a16fb | 11337 | |
e04a16fb | 11338 | default: |
15fdcfe9 | 11339 | CAN_COMPLETE_NORMALLY (node) = 1; |
b67d701b | 11340 | /* Ok: may be we have a STRING_CST or a crafted `StringBuffer' |
c2952b01 APB |
11341 | and it's time to turn it into the appropriate String object */ |
11342 | if ((nn = patch_string (node))) | |
11343 | node = nn; | |
11344 | else | |
11345 | fatal ("No case for tree code `%s' - java_complete_tree\n", | |
11346 | tree_code_name [TREE_CODE (node)]); | |
e04a16fb AG |
11347 | } |
11348 | return node; | |
11349 | } | |
11350 | ||
11351 | /* Complete function call's argument. Return a non zero value is an | |
11352 | error was found. */ | |
11353 | ||
11354 | static int | |
11355 | complete_function_arguments (node) | |
11356 | tree node; | |
11357 | { | |
11358 | int flag = 0; | |
11359 | tree cn; | |
11360 | ||
f63991a8 | 11361 | ctxp->explicit_constructor_p += (CALL_EXPLICIT_CONSTRUCTOR_P (node) ? 1 : 0); |
e04a16fb AG |
11362 | for (cn = TREE_OPERAND (node, 1); cn; cn = TREE_CHAIN (cn)) |
11363 | { | |
b67d701b | 11364 | tree wfl = TREE_VALUE (cn), parm, temp; |
e04a16fb | 11365 | parm = java_complete_tree (wfl); |
c2952b01 | 11366 | |
e04a16fb AG |
11367 | if (parm == error_mark_node) |
11368 | { | |
11369 | flag = 1; | |
11370 | continue; | |
11371 | } | |
b67d701b PB |
11372 | /* If have a string literal that we haven't transformed yet or a |
11373 | crafted string buffer, as a result of use of the the String | |
11374 | `+' operator. Build `parm.toString()' and expand it. */ | |
11375 | if ((temp = patch_string (parm))) | |
b9f7e36c | 11376 | parm = temp; |
5e942c50 APB |
11377 | /* Inline PRIMTYPE.TYPE read access */ |
11378 | parm = maybe_build_primttype_type_ref (parm, wfl); | |
b9f7e36c | 11379 | |
5e942c50 | 11380 | TREE_VALUE (cn) = parm; |
e04a16fb | 11381 | } |
f63991a8 | 11382 | ctxp->explicit_constructor_p -= (CALL_EXPLICIT_CONSTRUCTOR_P (node) ? 1 : 0); |
e04a16fb AG |
11383 | return flag; |
11384 | } | |
11385 | ||
11386 | /* Sometimes (for loops and variable initialized during their | |
11387 | declaration), we want to wrap a statement around a WFL and turn it | |
11388 | debugable. */ | |
11389 | ||
11390 | static tree | |
11391 | build_debugable_stmt (location, stmt) | |
11392 | int location; | |
11393 | tree stmt; | |
11394 | { | |
11395 | if (TREE_CODE (stmt) != EXPR_WITH_FILE_LOCATION) | |
11396 | { | |
11397 | stmt = build_expr_wfl (stmt, input_filename, 0, 0); | |
11398 | EXPR_WFL_LINECOL (stmt) = location; | |
11399 | } | |
11400 | JAVA_MAYBE_GENERATE_DEBUG_INFO (stmt); | |
11401 | return stmt; | |
11402 | } | |
11403 | ||
11404 | static tree | |
11405 | build_expr_block (body, decls) | |
11406 | tree body, decls; | |
11407 | { | |
11408 | tree node = make_node (BLOCK); | |
11409 | BLOCK_EXPR_DECLS (node) = decls; | |
b67d701b | 11410 | BLOCK_EXPR_BODY (node) = body; |
e04a16fb AG |
11411 | if (body) |
11412 | TREE_TYPE (node) = TREE_TYPE (body); | |
11413 | TREE_SIDE_EFFECTS (node) = 1; | |
11414 | return node; | |
11415 | } | |
11416 | ||
b67d701b PB |
11417 | /* Create a new function block and link it approriately to current |
11418 | function block chain */ | |
e04a16fb AG |
11419 | |
11420 | static tree | |
11421 | enter_block () | |
11422 | { | |
b67d701b PB |
11423 | return (enter_a_block (build_expr_block (NULL_TREE, NULL_TREE))); |
11424 | } | |
11425 | ||
11426 | /* Link block B supercontext to the previous block. The current | |
11427 | function DECL is used as supercontext when enter_a_block is called | |
11428 | for the first time for a given function. The current function body | |
11429 | (DECL_FUNCTION_BODY) is set to be block B. */ | |
11430 | ||
11431 | static tree | |
11432 | enter_a_block (b) | |
11433 | tree b; | |
11434 | { | |
e04a16fb AG |
11435 | tree fndecl = current_function_decl; |
11436 | ||
f099f336 APB |
11437 | if (!fndecl) { |
11438 | BLOCK_SUPERCONTEXT (b) = current_static_block; | |
11439 | current_static_block = b; | |
11440 | } | |
11441 | ||
11442 | else if (!DECL_FUNCTION_BODY (fndecl)) | |
e04a16fb AG |
11443 | { |
11444 | BLOCK_SUPERCONTEXT (b) = fndecl; | |
11445 | DECL_FUNCTION_BODY (fndecl) = b; | |
11446 | } | |
11447 | else | |
11448 | { | |
11449 | BLOCK_SUPERCONTEXT (b) = DECL_FUNCTION_BODY (fndecl); | |
11450 | DECL_FUNCTION_BODY (fndecl) = b; | |
11451 | } | |
11452 | return b; | |
11453 | } | |
11454 | ||
11455 | /* Exit a block by changing the current function body | |
11456 | (DECL_FUNCTION_BODY) to the current block super context, only if | |
11457 | the block being exited isn't the method's top level one. */ | |
11458 | ||
11459 | static tree | |
11460 | exit_block () | |
11461 | { | |
f099f336 APB |
11462 | tree b; |
11463 | if (current_function_decl) | |
11464 | { | |
11465 | b = DECL_FUNCTION_BODY (current_function_decl); | |
11466 | if (BLOCK_SUPERCONTEXT (b) != current_function_decl) | |
11467 | DECL_FUNCTION_BODY (current_function_decl) = BLOCK_SUPERCONTEXT (b); | |
11468 | } | |
11469 | else | |
11470 | { | |
11471 | b = current_static_block; | |
e04a16fb | 11472 | |
f099f336 APB |
11473 | if (BLOCK_SUPERCONTEXT (b)) |
11474 | current_static_block = BLOCK_SUPERCONTEXT (b); | |
11475 | } | |
e04a16fb AG |
11476 | return b; |
11477 | } | |
11478 | ||
11479 | /* Lookup for NAME in the nested function's blocks, all the way up to | |
11480 | the current toplevel one. It complies with Java's local variable | |
11481 | scoping rules. */ | |
11482 | ||
11483 | static tree | |
11484 | lookup_name_in_blocks (name) | |
11485 | tree name; | |
11486 | { | |
f099f336 | 11487 | tree b = GET_CURRENT_BLOCK (current_function_decl); |
e04a16fb AG |
11488 | |
11489 | while (b != current_function_decl) | |
11490 | { | |
11491 | tree current; | |
11492 | ||
11493 | /* Paranoid sanity check. To be removed */ | |
11494 | if (TREE_CODE (b) != BLOCK) | |
11495 | fatal ("non block expr function body - lookup_name_in_blocks"); | |
11496 | ||
11497 | for (current = BLOCK_EXPR_DECLS (b); current; | |
11498 | current = TREE_CHAIN (current)) | |
11499 | if (DECL_NAME (current) == name) | |
11500 | return current; | |
11501 | b = BLOCK_SUPERCONTEXT (b); | |
11502 | } | |
11503 | return NULL_TREE; | |
11504 | } | |
11505 | ||
11506 | static void | |
11507 | maybe_absorb_scoping_blocks () | |
11508 | { | |
f099f336 | 11509 | while (BLOCK_EXPR_ORIGIN (GET_CURRENT_BLOCK (current_function_decl))) |
e04a16fb AG |
11510 | { |
11511 | tree b = exit_block (); | |
11512 | java_method_add_stmt (current_function_decl, b); | |
11513 | SOURCE_FRONTEND_DEBUG (("Absorbing scoping block at line %d", lineno)); | |
11514 | } | |
11515 | } | |
11516 | ||
11517 | \f | |
11518 | /* This section of the source is reserved to build_* functions that | |
11519 | are building incomplete tree nodes and the patch_* functions that | |
11520 | are completing them. */ | |
11521 | ||
c2952b01 APB |
11522 | /* Wrap a non WFL node around a WFL. */ |
11523 | static tree | |
9a7ab4b3 | 11524 | build_wfl_wrap (node, location) |
c2952b01 | 11525 | tree node; |
9a7ab4b3 | 11526 | int location; |
c2952b01 APB |
11527 | { |
11528 | tree wfl, node_to_insert = node; | |
11529 | ||
11530 | /* We want to process THIS . xxx symbolicaly, to keep it consistent | |
11531 | with the way we're processing SUPER. A THIS from a primary as a | |
11532 | different form than a SUPER. Turn THIS into something symbolic */ | |
11533 | if (TREE_CODE (node) == THIS_EXPR) | |
11534 | node_to_insert = wfl = build_wfl_node (this_identifier_node); | |
11535 | else | |
11536 | wfl = build_expr_wfl (NULL_TREE, ctxp->filename, 0, 0); | |
11537 | ||
9a7ab4b3 | 11538 | EXPR_WFL_LINECOL (wfl) = location; |
c2952b01 APB |
11539 | EXPR_WFL_QUALIFICATION (wfl) = build_tree_list (node_to_insert, NULL_TREE); |
11540 | return wfl; | |
11541 | } | |
11542 | ||
11543 | ||
9bbc7d9f | 11544 | /* Build a super() constructor invocation. Returns empty_stmt_node if |
22eed1e6 APB |
11545 | we're currently dealing with the class java.lang.Object. */ |
11546 | ||
11547 | static tree | |
e920ebc9 APB |
11548 | build_super_invocation (mdecl) |
11549 | tree mdecl; | |
22eed1e6 | 11550 | { |
e920ebc9 | 11551 | if (DECL_CONTEXT (mdecl) == object_type_node) |
9bbc7d9f | 11552 | return empty_stmt_node; |
22eed1e6 APB |
11553 | else |
11554 | { | |
9ee9b555 | 11555 | tree super_wfl = build_wfl_node (super_identifier_node); |
c2952b01 APB |
11556 | tree a = NULL_TREE, t; |
11557 | /* If we're dealing with an anonymous class, pass the arguments | |
11558 | of the crafted constructor along. */ | |
11559 | if (ANONYMOUS_CLASS_P (DECL_CONTEXT (mdecl))) | |
11560 | { | |
11561 | SKIP_THIS_AND_ARTIFICIAL_PARMS (t, mdecl); | |
11562 | for (; t != end_params_node; t = TREE_CHAIN (t)) | |
11563 | a = tree_cons (NULL_TREE, build_wfl_node (TREE_PURPOSE (t)), a); | |
11564 | } | |
11565 | return build_method_invocation (super_wfl, a); | |
22eed1e6 APB |
11566 | } |
11567 | } | |
11568 | ||
11569 | /* Build a SUPER/THIS qualified method invocation. */ | |
11570 | ||
11571 | static tree | |
11572 | build_this_super_qualified_invocation (use_this, name, args, lloc, rloc) | |
11573 | int use_this; | |
11574 | tree name, args; | |
11575 | int lloc, rloc; | |
22eed1e6 APB |
11576 | { |
11577 | tree invok; | |
11578 | tree wfl = | |
9ee9b555 | 11579 | build_wfl_node (use_this ? this_identifier_node : super_identifier_node); |
22eed1e6 APB |
11580 | EXPR_WFL_LINECOL (wfl) = lloc; |
11581 | invok = build_method_invocation (name, args); | |
11582 | return make_qualified_primary (wfl, invok, rloc); | |
11583 | } | |
11584 | ||
b67d701b | 11585 | /* Build an incomplete CALL_EXPR node. */ |
e04a16fb AG |
11586 | |
11587 | static tree | |
11588 | build_method_invocation (name, args) | |
11589 | tree name; | |
11590 | tree args; | |
11591 | { | |
11592 | tree call = build (CALL_EXPR, NULL_TREE, name, args, NULL_TREE); | |
11593 | TREE_SIDE_EFFECTS (call) = 1; | |
b67d701b PB |
11594 | EXPR_WFL_LINECOL (call) = EXPR_WFL_LINECOL (name); |
11595 | return call; | |
11596 | } | |
11597 | ||
11598 | /* Build an incomplete new xxx(...) node. */ | |
11599 | ||
11600 | static tree | |
11601 | build_new_invocation (name, args) | |
11602 | tree name, args; | |
11603 | { | |
11604 | tree call = build (NEW_CLASS_EXPR, NULL_TREE, name, args, NULL_TREE); | |
11605 | TREE_SIDE_EFFECTS (call) = 1; | |
e04a16fb AG |
11606 | EXPR_WFL_LINECOL (call) = EXPR_WFL_LINECOL (name); |
11607 | return call; | |
11608 | } | |
11609 | ||
11610 | /* Build an incomplete assignment expression. */ | |
11611 | ||
11612 | static tree | |
11613 | build_assignment (op, op_location, lhs, rhs) | |
11614 | int op, op_location; | |
11615 | tree lhs, rhs; | |
11616 | { | |
11617 | tree assignment; | |
11618 | /* Build the corresponding binop if we deal with a Compound | |
11619 | Assignment operator. Mark the binop sub-tree as part of a | |
11620 | Compound Assignment expression */ | |
11621 | if (op != ASSIGN_TK) | |
11622 | { | |
11623 | rhs = build_binop (BINOP_LOOKUP (op), op_location, lhs, rhs); | |
11624 | COMPOUND_ASSIGN_P (rhs) = 1; | |
11625 | } | |
11626 | assignment = build (MODIFY_EXPR, NULL_TREE, lhs, rhs); | |
11627 | TREE_SIDE_EFFECTS (assignment) = 1; | |
11628 | EXPR_WFL_LINECOL (assignment) = op_location; | |
11629 | return assignment; | |
11630 | } | |
11631 | ||
11632 | /* Print an INTEGER_CST node in a static buffer, and return the buffer. */ | |
11633 | ||
15fdcfe9 | 11634 | char * |
e04a16fb AG |
11635 | print_int_node (node) |
11636 | tree node; | |
11637 | { | |
11638 | static char buffer [80]; | |
11639 | if (TREE_CONSTANT_OVERFLOW (node)) | |
11640 | sprintf (buffer, "<overflow>"); | |
11641 | ||
11642 | if (TREE_INT_CST_HIGH (node) == 0) | |
11643 | sprintf (buffer, HOST_WIDE_INT_PRINT_UNSIGNED, | |
11644 | TREE_INT_CST_LOW (node)); | |
11645 | else if (TREE_INT_CST_HIGH (node) == -1 | |
11646 | && TREE_INT_CST_LOW (node) != 0) | |
11647 | { | |
11648 | buffer [0] = '-'; | |
11649 | sprintf (&buffer [1], HOST_WIDE_INT_PRINT_UNSIGNED, | |
11650 | -TREE_INT_CST_LOW (node)); | |
11651 | } | |
11652 | else | |
11653 | sprintf (buffer, HOST_WIDE_INT_PRINT_DOUBLE_HEX, | |
11654 | TREE_INT_CST_HIGH (node), TREE_INT_CST_LOW (node)); | |
11655 | ||
11656 | return buffer; | |
11657 | } | |
11658 | ||
7f1d4866 APB |
11659 | /* Return 1 if an assignment to a FINAL is attempted in a non suitable |
11660 | context. */ | |
5e942c50 APB |
11661 | |
11662 | static int | |
11663 | check_final_assignment (lvalue, wfl) | |
11664 | tree lvalue, wfl; | |
11665 | { | |
6632dcdd APB |
11666 | if (TREE_CODE (lvalue) == COMPOUND_EXPR |
11667 | && JDECL_P (TREE_OPERAND (lvalue, 1))) | |
11668 | lvalue = TREE_OPERAND (lvalue, 1); | |
11669 | ||
bc2874c9 TT |
11670 | /* When generating class files, references to the `length' field |
11671 | look a bit different. */ | |
11672 | if ((flag_emit_class_files | |
11673 | && TREE_CODE (lvalue) == COMPONENT_REF | |
11674 | && TYPE_ARRAY_P (TREE_TYPE (TREE_OPERAND (lvalue, 0))) | |
11675 | && FIELD_FINAL (TREE_OPERAND (lvalue, 1))) | |
11676 | || (TREE_CODE (lvalue) == FIELD_DECL | |
11677 | && FIELD_FINAL (lvalue) | |
11678 | && !DECL_CLINIT_P (current_function_decl) | |
11679 | && !DECL_FINIT_P (current_function_decl))) | |
5e942c50 APB |
11680 | { |
11681 | parse_error_context | |
11682 | (wfl, "Can't assign a value to the final variable `%s'", | |
11683 | IDENTIFIER_POINTER (EXPR_WFL_NODE (wfl))); | |
11684 | return 1; | |
11685 | } | |
11686 | return 0; | |
11687 | } | |
11688 | ||
11689 | /* Inline references to java.lang.PRIMTYPE.TYPE when accessed in | |
11690 | read. This is needed to avoid circularities in the implementation | |
11691 | of these fields in libjava. */ | |
11692 | ||
11693 | static tree | |
11694 | maybe_build_primttype_type_ref (rhs, wfl) | |
11695 | tree rhs, wfl; | |
11696 | { | |
11697 | tree to_return = NULL_TREE; | |
11698 | tree rhs_type = TREE_TYPE (rhs); | |
11699 | if (TREE_CODE (rhs) == COMPOUND_EXPR) | |
11700 | { | |
11701 | tree n = TREE_OPERAND (rhs, 1); | |
11702 | if (TREE_CODE (n) == VAR_DECL | |
11703 | && DECL_NAME (n) == TYPE_identifier_node | |
9a7ab4b3 APB |
11704 | && rhs_type == class_ptr_type |
11705 | && TREE_CODE (EXPR_WFL_NODE (wfl)) == IDENTIFIER_NODE) | |
5e942c50 | 11706 | { |
49f48c71 | 11707 | const char *self_name = IDENTIFIER_POINTER (EXPR_WFL_NODE (wfl)); |
5e942c50 APB |
11708 | if (!strncmp (self_name, "java.lang.", 10)) |
11709 | to_return = build_primtype_type_ref (self_name); | |
11710 | } | |
11711 | } | |
11712 | return (to_return ? to_return : rhs ); | |
11713 | } | |
11714 | ||
e04a16fb AG |
11715 | /* 15.25 Assignment operators. */ |
11716 | ||
11717 | static tree | |
11718 | patch_assignment (node, wfl_op1, wfl_op2) | |
11719 | tree node; | |
11720 | tree wfl_op1; | |
11721 | tree wfl_op2; | |
11722 | { | |
0a2138e2 | 11723 | tree rhs = TREE_OPERAND (node, 1); |
5e942c50 | 11724 | tree lvalue = TREE_OPERAND (node, 0), llvalue; |
cd531a2e | 11725 | tree lhs_type = NULL_TREE, rhs_type, new_rhs = NULL_TREE; |
e04a16fb AG |
11726 | int error_found = 0; |
11727 | int lvalue_from_array = 0; | |
11728 | ||
c2952b01 | 11729 | /* Can't assign to a (blank) final. */ |
5e942c50 APB |
11730 | if (check_final_assignment (lvalue, wfl_op1)) |
11731 | error_found = 1; | |
e04a16fb AG |
11732 | |
11733 | EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node); | |
11734 | ||
11735 | /* Lhs can be a named variable */ | |
34f4db93 | 11736 | if (JDECL_P (lvalue)) |
e04a16fb | 11737 | { |
e04a16fb AG |
11738 | lhs_type = TREE_TYPE (lvalue); |
11739 | } | |
11740 | /* Or Lhs can be a array acccess. Should that be lvalue ? FIXME + | |
11741 | comment on reason why */ | |
11742 | else if (TREE_CODE (wfl_op1) == ARRAY_REF) | |
11743 | { | |
11744 | lhs_type = TREE_TYPE (lvalue); | |
11745 | lvalue_from_array = 1; | |
11746 | } | |
11747 | /* Or a field access */ | |
11748 | else if (TREE_CODE (lvalue) == COMPONENT_REF) | |
11749 | lhs_type = TREE_TYPE (lvalue); | |
11750 | /* Or a function return slot */ | |
11751 | else if (TREE_CODE (lvalue) == RESULT_DECL) | |
11752 | lhs_type = TREE_TYPE (lvalue); | |
5e942c50 APB |
11753 | /* Otherwise, we might want to try to write into an optimized static |
11754 | final, this is an of a different nature, reported further on. */ | |
11755 | else if (TREE_CODE (wfl_op1) == EXPR_WITH_FILE_LOCATION | |
1504b2b4 | 11756 | && resolve_expression_name (wfl_op1, &llvalue)) |
5e942c50 | 11757 | { |
6632dcdd | 11758 | if (!error_found && check_final_assignment (llvalue, wfl_op1)) |
1504b2b4 APB |
11759 | { |
11760 | /* What we should do instead is resetting the all the flags | |
11761 | previously set, exchange lvalue for llvalue and continue. */ | |
11762 | error_found = 1; | |
11763 | return error_mark_node; | |
11764 | } | |
11765 | else | |
11766 | lhs_type = TREE_TYPE (lvalue); | |
5e942c50 APB |
11767 | } |
11768 | else | |
e04a16fb AG |
11769 | { |
11770 | parse_error_context (wfl_op1, "Invalid left hand side of assignment"); | |
11771 | error_found = 1; | |
11772 | } | |
11773 | ||
11774 | rhs_type = TREE_TYPE (rhs); | |
b67d701b | 11775 | /* 5.1 Try the assignment conversion for builtin type. */ |
0a2138e2 | 11776 | new_rhs = try_builtin_assignconv (wfl_op1, lhs_type, rhs); |
e04a16fb | 11777 | |
b67d701b | 11778 | /* 5.2 If it failed, try a reference conversion */ |
0a2138e2 | 11779 | if (!new_rhs && (new_rhs = try_reference_assignconv (lhs_type, rhs))) |
b67d701b | 11780 | lhs_type = promote_type (rhs_type); |
e04a16fb AG |
11781 | |
11782 | /* 15.25.2 If we have a compound assignment, convert RHS into the | |
11783 | type of the LHS */ | |
11784 | else if (COMPOUND_ASSIGN_P (TREE_OPERAND (node, 1))) | |
11785 | new_rhs = convert (lhs_type, rhs); | |
11786 | ||
11787 | /* Explicit cast required. This is an error */ | |
11788 | if (!new_rhs) | |
11789 | { | |
c2e3db92 KG |
11790 | char *t1 = xstrdup (lang_printable_name (TREE_TYPE (rhs), 0)); |
11791 | char *t2 = xstrdup (lang_printable_name (lhs_type, 0)); | |
e04a16fb AG |
11792 | tree wfl; |
11793 | char operation [32]; /* Max size known */ | |
11794 | ||
11795 | /* If the assignment is part of a declaration, we use the WFL of | |
11796 | the declared variable to point out the error and call it a | |
11797 | declaration problem. If the assignment is a genuine = | |
11798 | operator, we call is a operator `=' problem, otherwise we | |
11799 | call it an assignment problem. In both of these last cases, | |
11800 | we use the WFL of the operator to indicate the error. */ | |
11801 | ||
11802 | if (MODIFY_EXPR_FROM_INITIALIZATION_P (node)) | |
11803 | { | |
11804 | wfl = wfl_op1; | |
11805 | strcpy (operation, "declaration"); | |
11806 | } | |
11807 | else | |
11808 | { | |
11809 | wfl = wfl_operator; | |
11810 | if (COMPOUND_ASSIGN_P (TREE_OPERAND (node, 1))) | |
11811 | strcpy (operation, "assignment"); | |
11812 | else if (TREE_CODE (TREE_OPERAND (node, 0)) == RESULT_DECL) | |
11813 | strcpy (operation, "`return'"); | |
11814 | else | |
11815 | strcpy (operation, "`='"); | |
11816 | } | |
11817 | ||
1ebadc60 | 11818 | if (!valid_cast_to_p (rhs_type, lhs_type)) |
781b0558 KG |
11819 | parse_error_context |
11820 | (wfl, "Incompatible type for %s. Can't convert `%s' to `%s'", | |
11821 | operation, t1, t2); | |
1ebadc60 | 11822 | else |
781b0558 | 11823 | parse_error_context (wfl, "Incompatible type for %s. Explicit cast needed to convert `%s' to `%s'", |
1ebadc60 | 11824 | operation, t1, t2); |
e04a16fb AG |
11825 | free (t1); free (t2); |
11826 | error_found = 1; | |
11827 | } | |
11828 | ||
c877974e APB |
11829 | /* Inline read access to java.lang.PRIMTYPE.TYPE */ |
11830 | if (new_rhs) | |
11831 | new_rhs = maybe_build_primttype_type_ref (new_rhs, wfl_op2); | |
5e942c50 | 11832 | |
e04a16fb AG |
11833 | if (error_found) |
11834 | return error_mark_node; | |
11835 | ||
2622b947 APB |
11836 | /* 10.10: Array Store Exception runtime check */ |
11837 | if (!flag_emit_class_files | |
e8fc7396 | 11838 | && !flag_emit_xref |
2622b947 | 11839 | && lvalue_from_array |
afc390b1 | 11840 | && JREFERENCE_TYPE_P (TYPE_ARRAY_ELEMENT (lhs_type))) |
2622b947 APB |
11841 | { |
11842 | tree check; | |
11843 | tree base = lvalue; | |
11844 | ||
11845 | /* We need to retrieve the right argument for _Jv_CheckArrayStore */ | |
11846 | if (TREE_CODE (lvalue) == COMPOUND_EXPR) | |
11847 | base = TREE_OPERAND (lvalue, 0); | |
11848 | else | |
11849 | { | |
11850 | if (flag_bounds_check) | |
11851 | base = TREE_OPERAND (TREE_OPERAND (TREE_OPERAND (base, 0), 1), 0); | |
11852 | else | |
11853 | base = TREE_OPERAND (TREE_OPERAND (base, 0), 0); | |
11854 | } | |
11855 | ||
11856 | /* Build the invocation of _Jv_CheckArrayStore */ | |
dc4e6ccf | 11857 | new_rhs = save_expr (new_rhs); |
2622b947 APB |
11858 | check = build (CALL_EXPR, void_type_node, |
11859 | build_address_of (soft_checkarraystore_node), | |
11860 | tree_cons (NULL_TREE, base, | |
11861 | build_tree_list (NULL_TREE, new_rhs)), | |
11862 | NULL_TREE); | |
11863 | TREE_SIDE_EFFECTS (check) = 1; | |
11864 | ||
11865 | /* We have to decide on an insertion point */ | |
11866 | if (TREE_CODE (lvalue) == COMPOUND_EXPR) | |
11867 | { | |
11868 | tree t; | |
11869 | if (flag_bounds_check) | |
11870 | { | |
11871 | t = TREE_OPERAND (TREE_OPERAND (TREE_OPERAND (lvalue, 1), 0), 0); | |
11872 | TREE_OPERAND (TREE_OPERAND (TREE_OPERAND (lvalue, 1), 0), 0) = | |
11873 | build (COMPOUND_EXPR, void_type_node, t, check); | |
11874 | } | |
11875 | else | |
11876 | TREE_OPERAND (lvalue, 1) = build (COMPOUND_EXPR, lhs_type, | |
11877 | check, TREE_OPERAND (lvalue, 1)); | |
11878 | } | |
11879 | else | |
11880 | { | |
11881 | /* Make sure the bound check will happen before the store check */ | |
11882 | if (flag_bounds_check) | |
11883 | TREE_OPERAND (TREE_OPERAND (lvalue, 0), 0) = | |
11884 | build (COMPOUND_EXPR, void_type_node, | |
11885 | TREE_OPERAND (TREE_OPERAND (lvalue, 0), 0), check); | |
11886 | else | |
11887 | lvalue = build (COMPOUND_EXPR, lhs_type, check, lvalue); | |
11888 | } | |
11889 | } | |
22eed1e6 | 11890 | |
e04a16fb AG |
11891 | TREE_OPERAND (node, 0) = lvalue; |
11892 | TREE_OPERAND (node, 1) = new_rhs; | |
11893 | TREE_TYPE (node) = lhs_type; | |
11894 | return node; | |
11895 | } | |
11896 | ||
b67d701b PB |
11897 | /* Check that type SOURCE can be cast into type DEST. If the cast |
11898 | can't occur at all, return 0 otherwise 1. This function is used to | |
11899 | produce accurate error messages on the reasons why an assignment | |
11900 | failed. */ | |
e04a16fb | 11901 | |
b67d701b PB |
11902 | static tree |
11903 | try_reference_assignconv (lhs_type, rhs) | |
11904 | tree lhs_type, rhs; | |
e04a16fb | 11905 | { |
b67d701b PB |
11906 | tree new_rhs = NULL_TREE; |
11907 | tree rhs_type = TREE_TYPE (rhs); | |
e04a16fb | 11908 | |
b67d701b PB |
11909 | if (!JPRIMITIVE_TYPE_P (rhs_type) && JREFERENCE_TYPE_P (lhs_type)) |
11910 | { | |
11911 | /* `null' may be assigned to any reference type */ | |
11912 | if (rhs == null_pointer_node) | |
11913 | new_rhs = null_pointer_node; | |
11914 | /* Try the reference assignment conversion */ | |
11915 | else if (valid_ref_assignconv_cast_p (rhs_type, lhs_type, 0)) | |
11916 | new_rhs = rhs; | |
11917 | /* This is a magic assignment that we process differently */ | |
11918 | else if (rhs == soft_exceptioninfo_call_node) | |
11919 | new_rhs = rhs; | |
11920 | } | |
11921 | return new_rhs; | |
11922 | } | |
11923 | ||
11924 | /* Check that RHS can be converted into LHS_TYPE by the assignment | |
11925 | conversion (5.2), for the cases of RHS being a builtin type. Return | |
11926 | NULL_TREE if the conversion fails or if because RHS isn't of a | |
11927 | builtin type. Return a converted RHS if the conversion is possible. */ | |
11928 | ||
11929 | static tree | |
11930 | try_builtin_assignconv (wfl_op1, lhs_type, rhs) | |
11931 | tree wfl_op1, lhs_type, rhs; | |
11932 | { | |
11933 | tree new_rhs = NULL_TREE; | |
11934 | tree rhs_type = TREE_TYPE (rhs); | |
11935 | ||
5e942c50 APB |
11936 | /* Zero accepted everywhere */ |
11937 | if (TREE_CODE (rhs) == INTEGER_CST | |
11938 | && TREE_INT_CST_HIGH (rhs) == 0 && TREE_INT_CST_LOW (rhs) == 0 | |
11939 | && JPRIMITIVE_TYPE_P (rhs_type)) | |
11940 | new_rhs = convert (lhs_type, rhs); | |
11941 | ||
b67d701b PB |
11942 | /* 5.1.1 Try Identity Conversion, |
11943 | 5.1.2 Try Widening Primitive Conversion */ | |
5e942c50 | 11944 | else if (valid_builtin_assignconv_identity_widening_p (lhs_type, rhs_type)) |
b67d701b PB |
11945 | new_rhs = convert (lhs_type, rhs); |
11946 | ||
11947 | /* Try a narrowing primitive conversion (5.1.3): | |
11948 | - expression is a constant expression of type int AND | |
11949 | - variable is byte, short or char AND | |
11950 | - The value of the expression is representable in the type of the | |
11951 | variable */ | |
11952 | else if (rhs_type == int_type_node && TREE_CONSTANT (rhs) | |
11953 | && (lhs_type == byte_type_node || lhs_type == char_type_node | |
11954 | || lhs_type == short_type_node)) | |
11955 | { | |
11956 | if (int_fits_type_p (rhs, lhs_type)) | |
11957 | new_rhs = convert (lhs_type, rhs); | |
11958 | else if (wfl_op1) /* Might be called with a NULL */ | |
11959 | parse_warning_context | |
781b0558 | 11960 | (wfl_op1, "Constant expression `%s' to wide for narrowing primitive conversion to `%s'", |
0a2138e2 | 11961 | print_int_node (rhs), lang_printable_name (lhs_type, 0)); |
b67d701b PB |
11962 | /* Reported a warning that will turn into an error further |
11963 | down, so we don't return */ | |
11964 | } | |
11965 | ||
11966 | return new_rhs; | |
11967 | } | |
11968 | ||
11969 | /* Return 1 if RHS_TYPE can be converted to LHS_TYPE by identity | |
11970 | conversion (5.1.1) or widening primitve conversion (5.1.2). Return | |
11971 | 0 is the conversion test fails. This implements parts the method | |
11972 | invocation convertion (5.3). */ | |
11973 | ||
11974 | static int | |
11975 | valid_builtin_assignconv_identity_widening_p (lhs_type, rhs_type) | |
11976 | tree lhs_type, rhs_type; | |
11977 | { | |
acd663ee | 11978 | /* 5.1.1: This is the identity conversion part. */ |
5e942c50 APB |
11979 | if (lhs_type == rhs_type) |
11980 | return 1; | |
11981 | ||
acd663ee APB |
11982 | /* Reject non primitive types */ |
11983 | if (!JPRIMITIVE_TYPE_P (lhs_type) || !JPRIMITIVE_TYPE_P (rhs_type)) | |
b67d701b PB |
11984 | return 0; |
11985 | ||
acd663ee APB |
11986 | /* 5.1.2: widening primitive conversion. byte, even if it's smaller |
11987 | than a char can't be converted into a char. Short can't too, but | |
11988 | the < test below takes care of that */ | |
b67d701b PB |
11989 | if (lhs_type == char_type_node && rhs_type == byte_type_node) |
11990 | return 0; | |
11991 | ||
5e942c50 APB |
11992 | /* Accept all promoted type here. Note, we can't use <= in the test |
11993 | below, because we still need to bounce out assignments of short | |
11994 | to char and the likes */ | |
11995 | if (lhs_type == int_type_node | |
11996 | && (rhs_type == promoted_byte_type_node | |
11997 | || rhs_type == promoted_short_type_node | |
11998 | || rhs_type == promoted_char_type_node | |
11999 | || rhs_type == promoted_boolean_type_node)) | |
12000 | return 1; | |
12001 | ||
acd663ee APB |
12002 | /* From here, an integral is widened if its precision is smaller |
12003 | than the precision of the LHS or if the LHS is a floating point | |
12004 | type, or the RHS is a float and the RHS a double. */ | |
12005 | if ((JINTEGRAL_TYPE_P (rhs_type) && JINTEGRAL_TYPE_P (lhs_type) | |
12006 | && (TYPE_PRECISION (rhs_type) < TYPE_PRECISION (lhs_type))) | |
12007 | || (JINTEGRAL_TYPE_P (rhs_type) && JFLOAT_TYPE_P (lhs_type)) | |
12008 | || (rhs_type == float_type_node && lhs_type == double_type_node)) | |
b67d701b PB |
12009 | return 1; |
12010 | ||
12011 | return 0; | |
e04a16fb AG |
12012 | } |
12013 | ||
12014 | /* Check that something of SOURCE type can be assigned or cast to | |
12015 | something of DEST type at runtime. Return 1 if the operation is | |
12016 | valid, 0 otherwise. If CAST is set to 1, we're treating the case | |
12017 | were SOURCE is cast into DEST, which borrows a lot of the | |
12018 | assignment check. */ | |
12019 | ||
12020 | static int | |
12021 | valid_ref_assignconv_cast_p (source, dest, cast) | |
12022 | tree source; | |
12023 | tree dest; | |
12024 | int cast; | |
12025 | { | |
09ed0f70 APB |
12026 | /* SOURCE or DEST might be null if not from a declared entity. */ |
12027 | if (!source || !dest) | |
12028 | return 0; | |
5e942c50 APB |
12029 | if (JNULLP_TYPE_P (source)) |
12030 | return 1; | |
e04a16fb AG |
12031 | if (TREE_CODE (source) == POINTER_TYPE) |
12032 | source = TREE_TYPE (source); | |
12033 | if (TREE_CODE (dest) == POINTER_TYPE) | |
12034 | dest = TREE_TYPE (dest); | |
12035 | /* Case where SOURCE is a class type */ | |
12036 | if (TYPE_CLASS_P (source)) | |
12037 | { | |
12038 | if (TYPE_CLASS_P (dest)) | |
c2952b01 APB |
12039 | return (source == dest |
12040 | || inherits_from_p (source, dest) | |
12041 | || enclosing_context_p (dest, source /*source, dest*/) | |
12042 | || (cast && inherits_from_p (dest, source))); | |
e04a16fb AG |
12043 | if (TYPE_INTERFACE_P (dest)) |
12044 | { | |
12045 | /* If doing a cast and SOURCE is final, the operation is | |
12046 | always correct a compile time (because even if SOURCE | |
12047 | does not implement DEST, a subclass of SOURCE might). */ | |
12048 | if (cast && !CLASS_FINAL (TYPE_NAME (source))) | |
12049 | return 1; | |
12050 | /* Otherwise, SOURCE must implement DEST */ | |
12051 | return interface_of_p (dest, source); | |
12052 | } | |
12053 | /* DEST is an array, cast permited if SOURCE is of Object type */ | |
12054 | return (cast && source == object_type_node ? 1 : 0); | |
12055 | } | |
12056 | if (TYPE_INTERFACE_P (source)) | |
12057 | { | |
12058 | if (TYPE_CLASS_P (dest)) | |
12059 | { | |
12060 | /* If not casting, DEST must be the Object type */ | |
12061 | if (!cast) | |
12062 | return dest == object_type_node; | |
12063 | /* We're doing a cast. The cast is always valid is class | |
12064 | DEST is not final, otherwise, DEST must implement SOURCE */ | |
b67d701b | 12065 | else if (!CLASS_FINAL (TYPE_NAME (dest))) |
e04a16fb AG |
12066 | return 1; |
12067 | else | |
12068 | return interface_of_p (source, dest); | |
12069 | } | |
12070 | if (TYPE_INTERFACE_P (dest)) | |
12071 | { | |
12072 | /* If doing a cast, then if SOURCE and DEST contain method | |
12073 | with the same signature but different return type, then | |
12074 | this is a (compile time) error */ | |
12075 | if (cast) | |
12076 | { | |
12077 | tree method_source, method_dest; | |
12078 | tree source_type; | |
0a2138e2 | 12079 | tree source_sig; |
e04a16fb AG |
12080 | tree source_name; |
12081 | for (method_source = TYPE_METHODS (source); method_source; | |
12082 | method_source = TREE_CHAIN (method_source)) | |
12083 | { | |
12084 | source_sig = | |
12085 | build_java_argument_signature (TREE_TYPE (method_source)); | |
12086 | source_type = TREE_TYPE (TREE_TYPE (method_source)); | |
12087 | source_name = DECL_NAME (method_source); | |
12088 | for (method_dest = TYPE_METHODS (dest); | |
12089 | method_dest; method_dest = TREE_CHAIN (method_dest)) | |
12090 | if (source_sig == | |
12091 | build_java_argument_signature (TREE_TYPE (method_dest)) | |
12092 | && source_name == DECL_NAME (method_dest) | |
12093 | && source_type != TREE_TYPE (TREE_TYPE (method_dest))) | |
12094 | return 0; | |
12095 | } | |
12096 | return 1; | |
12097 | } | |
12098 | else | |
12099 | return source == dest || interface_of_p (dest, source); | |
12100 | } | |
12101 | else /* Array */ | |
93024893 APB |
12102 | return (cast ? |
12103 | (DECL_NAME (TYPE_NAME (source)) == java_lang_cloneable) : 0); | |
e04a16fb AG |
12104 | } |
12105 | if (TYPE_ARRAY_P (source)) | |
12106 | { | |
12107 | if (TYPE_CLASS_P (dest)) | |
12108 | return dest == object_type_node; | |
09ed0f70 APB |
12109 | /* Can't cast an array to an interface unless the interface is |
12110 | java.lang.Cloneable */ | |
e04a16fb | 12111 | if (TYPE_INTERFACE_P (dest)) |
09ed0f70 | 12112 | return (DECL_NAME (TYPE_NAME (dest)) == java_lang_cloneable ? 1 : 0); |
e04a16fb AG |
12113 | else /* Arrays */ |
12114 | { | |
12115 | tree source_element_type = TYPE_ARRAY_ELEMENT (source); | |
12116 | tree dest_element_type = TYPE_ARRAY_ELEMENT (dest); | |
12117 | ||
b9f7e36c APB |
12118 | /* In case of severe errors, they turn out null */ |
12119 | if (!dest_element_type || !source_element_type) | |
12120 | return 0; | |
e04a16fb AG |
12121 | if (source_element_type == dest_element_type) |
12122 | return 1; | |
12123 | return valid_ref_assignconv_cast_p (source_element_type, | |
12124 | dest_element_type, cast); | |
12125 | } | |
12126 | return 0; | |
12127 | } | |
12128 | return 0; | |
12129 | } | |
12130 | ||
b67d701b PB |
12131 | static int |
12132 | valid_cast_to_p (source, dest) | |
12133 | tree source; | |
12134 | tree dest; | |
12135 | { | |
12136 | if (TREE_CODE (source) == POINTER_TYPE) | |
12137 | source = TREE_TYPE (source); | |
12138 | if (TREE_CODE (dest) == POINTER_TYPE) | |
12139 | dest = TREE_TYPE (dest); | |
12140 | ||
12141 | if (TREE_CODE (source) == RECORD_TYPE && TREE_CODE (dest) == RECORD_TYPE) | |
12142 | return valid_ref_assignconv_cast_p (source, dest, 1); | |
12143 | ||
12144 | else if (JNUMERIC_TYPE_P (source) && JNUMERIC_TYPE_P (dest)) | |
12145 | return 1; | |
12146 | ||
12147 | return 0; | |
12148 | } | |
12149 | ||
12150 | /* Method invocation conversion test. Return 1 if type SOURCE can be | |
12151 | converted to type DEST through the methond invocation conversion | |
12152 | process (5.3) */ | |
12153 | ||
15fdcfe9 PB |
12154 | static tree |
12155 | do_unary_numeric_promotion (arg) | |
12156 | tree arg; | |
12157 | { | |
12158 | tree type = TREE_TYPE (arg); | |
12159 | if (TREE_CODE (type) == INTEGER_TYPE ? TYPE_PRECISION (type) < 32 | |
12160 | : TREE_CODE (type) == CHAR_TYPE) | |
12161 | arg = convert (int_type_node, arg); | |
12162 | return arg; | |
12163 | } | |
12164 | ||
acd663ee APB |
12165 | /* Return a non zero value if SOURCE can be converted into DEST using |
12166 | the method invocation conversion rule (5.3). */ | |
b67d701b PB |
12167 | static int |
12168 | valid_method_invocation_conversion_p (dest, source) | |
12169 | tree dest, source; | |
12170 | { | |
e3884b71 | 12171 | return ((JPRIMITIVE_TYPE_P (source) && JPRIMITIVE_TYPE_P (dest) |
acd663ee APB |
12172 | && valid_builtin_assignconv_identity_widening_p (dest, source)) |
12173 | || ((JREFERENCE_TYPE_P (source) || JNULLP_TYPE_P (source)) | |
12174 | && (JREFERENCE_TYPE_P (dest) || JNULLP_TYPE_P (dest)) | |
12175 | && valid_ref_assignconv_cast_p (source, dest, 0))); | |
b67d701b PB |
12176 | } |
12177 | ||
e04a16fb AG |
12178 | /* Build an incomplete binop expression. */ |
12179 | ||
12180 | static tree | |
12181 | build_binop (op, op_location, op1, op2) | |
12182 | enum tree_code op; | |
12183 | int op_location; | |
12184 | tree op1, op2; | |
12185 | { | |
5e942c50 | 12186 | tree binop = build (op, NULL_TREE, op1, op2); |
e04a16fb AG |
12187 | TREE_SIDE_EFFECTS (binop) = 1; |
12188 | /* Store the location of the operator, for better error report. The | |
12189 | string of the operator will be rebuild based on the OP value. */ | |
12190 | EXPR_WFL_LINECOL (binop) = op_location; | |
12191 | return binop; | |
12192 | } | |
12193 | ||
12194 | /* Build the string of the operator retained by NODE. If NODE is part | |
12195 | of a compound expression, add an '=' at the end of the string. This | |
12196 | function is called when an error needs to be reported on an | |
12197 | operator. The string is returned as a pointer to a static character | |
12198 | buffer. */ | |
12199 | ||
12200 | static char * | |
12201 | operator_string (node) | |
12202 | tree node; | |
12203 | { | |
12204 | #define BUILD_OPERATOR_STRING(S) \ | |
12205 | { \ | |
12206 | sprintf (buffer, "%s%s", S, (COMPOUND_ASSIGN_P (node) ? "=" : "")); \ | |
12207 | return buffer; \ | |
12208 | } | |
12209 | ||
12210 | static char buffer [10]; | |
12211 | switch (TREE_CODE (node)) | |
12212 | { | |
12213 | case MULT_EXPR: BUILD_OPERATOR_STRING ("*"); | |
12214 | case RDIV_EXPR: BUILD_OPERATOR_STRING ("/"); | |
12215 | case TRUNC_MOD_EXPR: BUILD_OPERATOR_STRING ("%"); | |
12216 | case PLUS_EXPR: BUILD_OPERATOR_STRING ("+"); | |
12217 | case MINUS_EXPR: BUILD_OPERATOR_STRING ("-"); | |
12218 | case LSHIFT_EXPR: BUILD_OPERATOR_STRING ("<<"); | |
12219 | case RSHIFT_EXPR: BUILD_OPERATOR_STRING (">>"); | |
12220 | case URSHIFT_EXPR: BUILD_OPERATOR_STRING (">>>"); | |
12221 | case BIT_AND_EXPR: BUILD_OPERATOR_STRING ("&"); | |
12222 | case BIT_XOR_EXPR: BUILD_OPERATOR_STRING ("^"); | |
12223 | case BIT_IOR_EXPR: BUILD_OPERATOR_STRING ("|"); | |
12224 | case TRUTH_ANDIF_EXPR: BUILD_OPERATOR_STRING ("&&"); | |
12225 | case TRUTH_ORIF_EXPR: BUILD_OPERATOR_STRING ("||"); | |
12226 | case EQ_EXPR: BUILD_OPERATOR_STRING ("=="); | |
12227 | case NE_EXPR: BUILD_OPERATOR_STRING ("!="); | |
12228 | case GT_EXPR: BUILD_OPERATOR_STRING (">"); | |
12229 | case GE_EXPR: BUILD_OPERATOR_STRING (">="); | |
12230 | case LT_EXPR: BUILD_OPERATOR_STRING ("<"); | |
12231 | case LE_EXPR: BUILD_OPERATOR_STRING ("<="); | |
b67d701b | 12232 | case UNARY_PLUS_EXPR: BUILD_OPERATOR_STRING ("+"); |
e04a16fb AG |
12233 | case NEGATE_EXPR: BUILD_OPERATOR_STRING ("-"); |
12234 | case TRUTH_NOT_EXPR: BUILD_OPERATOR_STRING ("!"); | |
12235 | case BIT_NOT_EXPR: BUILD_OPERATOR_STRING ("~"); | |
12236 | case PREINCREMENT_EXPR: /* Fall through */ | |
12237 | case POSTINCREMENT_EXPR: BUILD_OPERATOR_STRING ("++"); | |
12238 | case PREDECREMENT_EXPR: /* Fall through */ | |
12239 | case POSTDECREMENT_EXPR: BUILD_OPERATOR_STRING ("--"); | |
12240 | default: | |
12241 | fatal ("unregistered operator %s - operator_string", | |
12242 | tree_code_name [TREE_CODE (node)]); | |
12243 | } | |
12244 | return NULL; | |
12245 | #undef BUILD_OPERATOR_STRING | |
12246 | } | |
12247 | ||
5cbdba64 APB |
12248 | /* Return 1 if VAR_ACCESS1 is equivalent to VAR_ACCESS2. */ |
12249 | ||
12250 | static int | |
12251 | java_decl_equiv (var_acc1, var_acc2) | |
12252 | tree var_acc1, var_acc2; | |
12253 | { | |
12254 | if (JDECL_P (var_acc1)) | |
12255 | return (var_acc1 == var_acc2); | |
12256 | ||
12257 | return (TREE_CODE (var_acc1) == COMPONENT_REF | |
12258 | && TREE_CODE (var_acc2) == COMPONENT_REF | |
12259 | && TREE_OPERAND (TREE_OPERAND (var_acc1, 0), 0) | |
12260 | == TREE_OPERAND (TREE_OPERAND (var_acc2, 0), 0) | |
12261 | && TREE_OPERAND (var_acc1, 1) == TREE_OPERAND (var_acc2, 1)); | |
12262 | } | |
12263 | ||
12264 | /* Return a non zero value if CODE is one of the operators that can be | |
12265 | used in conjunction with the `=' operator in a compound assignment. */ | |
12266 | ||
12267 | static int | |
12268 | binop_compound_p (code) | |
12269 | enum tree_code code; | |
12270 | { | |
12271 | int i; | |
12272 | for (i = 0; i < BINOP_COMPOUND_CANDIDATES; i++) | |
12273 | if (binop_lookup [i] == code) | |
12274 | break; | |
12275 | ||
12276 | return i < BINOP_COMPOUND_CANDIDATES; | |
12277 | } | |
12278 | ||
12279 | /* Reorganize after a fold to get SAVE_EXPR to generate what we want. */ | |
12280 | ||
12281 | static tree | |
12282 | java_refold (t) | |
12283 | tree t; | |
12284 | { | |
12285 | tree c, b, ns, decl; | |
12286 | ||
12287 | if (TREE_CODE (t) != MODIFY_EXPR) | |
12288 | return t; | |
12289 | ||
12290 | c = TREE_OPERAND (t, 1); | |
12291 | if (! (c && TREE_CODE (c) == COMPOUND_EXPR | |
12292 | && TREE_CODE (TREE_OPERAND (c, 0)) == MODIFY_EXPR | |
12293 | && binop_compound_p (TREE_CODE (TREE_OPERAND (c, 1))))) | |
12294 | return t; | |
12295 | ||
12296 | /* Now the left branch of the binary operator. */ | |
12297 | b = TREE_OPERAND (TREE_OPERAND (c, 1), 0); | |
12298 | if (! (b && TREE_CODE (b) == NOP_EXPR | |
12299 | && TREE_CODE (TREE_OPERAND (b, 0)) == SAVE_EXPR)) | |
12300 | return t; | |
12301 | ||
12302 | ns = TREE_OPERAND (TREE_OPERAND (b, 0), 0); | |
12303 | if (! (ns && TREE_CODE (ns) == NOP_EXPR | |
12304 | && TREE_CODE (TREE_OPERAND (ns, 0)) == SAVE_EXPR)) | |
12305 | return t; | |
12306 | ||
12307 | decl = TREE_OPERAND (TREE_OPERAND (ns, 0), 0); | |
12308 | if ((JDECL_P (decl) || TREE_CODE (decl) == COMPONENT_REF) | |
12309 | /* It's got to be the an equivalent decl */ | |
12310 | && java_decl_equiv (decl, TREE_OPERAND (TREE_OPERAND (c, 0), 0))) | |
12311 | { | |
12312 | /* Shorten the NOP_EXPR/SAVE_EXPR path. */ | |
12313 | TREE_OPERAND (TREE_OPERAND (c, 1), 0) = TREE_OPERAND (ns, 0); | |
12314 | /* Substitute the COMPOUND_EXPR by the BINOP_EXPR */ | |
12315 | TREE_OPERAND (t, 1) = TREE_OPERAND (c, 1); | |
12316 | /* Change the right part of the BINOP_EXPR */ | |
12317 | TREE_OPERAND (TREE_OPERAND (t, 1), 1) = TREE_OPERAND (c, 0); | |
12318 | } | |
12319 | ||
12320 | return t; | |
12321 | } | |
12322 | ||
e04a16fb AG |
12323 | /* Binary operators (15.16 up to 15.18). We return error_mark_node on |
12324 | errors but we modify NODE so that it contains the type computed | |
12325 | according to the expression, when it's fixed. Otherwise, we write | |
12326 | error_mark_node as the type. It allows us to further the analysis | |
12327 | of remaining nodes and detects more errors in certain cases. */ | |
12328 | ||
12329 | static tree | |
12330 | patch_binop (node, wfl_op1, wfl_op2) | |
12331 | tree node; | |
12332 | tree wfl_op1; | |
12333 | tree wfl_op2; | |
12334 | { | |
12335 | tree op1 = TREE_OPERAND (node, 0); | |
12336 | tree op2 = TREE_OPERAND (node, 1); | |
12337 | tree op1_type = TREE_TYPE (op1); | |
12338 | tree op2_type = TREE_TYPE (op2); | |
48a840d9 | 12339 | tree prom_type = NULL_TREE, cn; |
e04a16fb | 12340 | int code = TREE_CODE (node); |
b67d701b | 12341 | |
e04a16fb AG |
12342 | /* If 1, tell the routine that we have to return error_mark_node |
12343 | after checking for the initialization of the RHS */ | |
12344 | int error_found = 0; | |
12345 | ||
e04a16fb AG |
12346 | EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node); |
12347 | ||
e04a16fb AG |
12348 | switch (code) |
12349 | { | |
12350 | /* 15.16 Multiplicative operators */ | |
12351 | case MULT_EXPR: /* 15.16.1 Multiplication Operator * */ | |
12352 | case RDIV_EXPR: /* 15.16.2 Division Operator / */ | |
c2952b01 | 12353 | case TRUNC_DIV_EXPR: /* 15.16.2 Integral type Division Operator / */ |
e04a16fb AG |
12354 | case TRUNC_MOD_EXPR: /* 15.16.3 Remainder operator % */ |
12355 | if (!JPRIMITIVE_TYPE_P (op1_type) || !JPRIMITIVE_TYPE_P (op2_type)) | |
12356 | { | |
12357 | if (!JPRIMITIVE_TYPE_P (op1_type)) | |
12358 | ERROR_CANT_CONVERT_TO_NUMERIC (wfl_operator, node, op1_type); | |
12359 | if (!JPRIMITIVE_TYPE_P (op2_type) && (op1_type != op2_type)) | |
12360 | ERROR_CANT_CONVERT_TO_NUMERIC (wfl_operator, node, op2_type); | |
12361 | TREE_TYPE (node) = error_mark_node; | |
12362 | error_found = 1; | |
12363 | break; | |
12364 | } | |
12365 | prom_type = binary_numeric_promotion (op1_type, op2_type, &op1, &op2); | |
12366 | /* Change the division operator if necessary */ | |
12367 | if (code == RDIV_EXPR && TREE_CODE (prom_type) == INTEGER_TYPE) | |
12368 | TREE_SET_CODE (node, TRUNC_DIV_EXPR); | |
0b4d333e | 12369 | |
aa4759c1 AH |
12370 | if (TREE_CODE (prom_type) == INTEGER_TYPE |
12371 | && flag_use_divide_subroutine | |
12372 | && ! flag_emit_class_files | |
12373 | && (code == RDIV_EXPR || code == TRUNC_MOD_EXPR)) | |
12374 | return build_java_soft_divmod (TREE_CODE (node), prom_type, op1, op2); | |
12375 | ||
0b4d333e APB |
12376 | /* This one is more complicated. FLOATs are processed by a |
12377 | function call to soft_fmod. Duplicate the value of the | |
12378 | COMPOUND_ASSIGN_P flag. */ | |
e04a16fb | 12379 | if (code == TRUNC_MOD_EXPR) |
0b4d333e APB |
12380 | { |
12381 | tree mod = build_java_binop (TRUNC_MOD_EXPR, prom_type, op1, op2); | |
12382 | COMPOUND_ASSIGN_P (mod) = COMPOUND_ASSIGN_P (node); | |
dc0b3eff PB |
12383 | TREE_SIDE_EFFECTS (mod) |
12384 | = TREE_SIDE_EFFECTS (op1) | TREE_SIDE_EFFECTS (op2); | |
0b4d333e APB |
12385 | return mod; |
12386 | } | |
e04a16fb AG |
12387 | break; |
12388 | ||
12389 | /* 15.17 Additive Operators */ | |
12390 | case PLUS_EXPR: /* 15.17.1 String Concatenation Operator + */ | |
b67d701b PB |
12391 | |
12392 | /* Operation is valid if either one argument is a string | |
12393 | constant, a String object or a StringBuffer crafted for the | |
12394 | purpose of the a previous usage of the String concatenation | |
12395 | operator */ | |
12396 | ||
12397 | if (TREE_CODE (op1) == STRING_CST | |
12398 | || TREE_CODE (op2) == STRING_CST | |
12399 | || JSTRING_TYPE_P (op1_type) | |
12400 | || JSTRING_TYPE_P (op2_type) | |
12401 | || IS_CRAFTED_STRING_BUFFER_P (op1) | |
12402 | || IS_CRAFTED_STRING_BUFFER_P (op2)) | |
12403 | return build_string_concatenation (op1, op2); | |
12404 | ||
e04a16fb AG |
12405 | case MINUS_EXPR: /* 15.17.2 Additive Operators (+ and -) for |
12406 | Numeric Types */ | |
12407 | if (!JPRIMITIVE_TYPE_P (op1_type) || !JPRIMITIVE_TYPE_P (op2_type)) | |
12408 | { | |
12409 | if (!JPRIMITIVE_TYPE_P (op1_type)) | |
12410 | ERROR_CANT_CONVERT_TO_NUMERIC (wfl_operator, node, op1_type); | |
12411 | if (!JPRIMITIVE_TYPE_P (op2_type) && (op1_type != op2_type)) | |
12412 | ERROR_CANT_CONVERT_TO_NUMERIC (wfl_operator, node, op2_type); | |
12413 | TREE_TYPE (node) = error_mark_node; | |
12414 | error_found = 1; | |
12415 | break; | |
12416 | } | |
12417 | prom_type = binary_numeric_promotion (op1_type, op2_type, &op1, &op2); | |
12418 | break; | |
12419 | ||
12420 | /* 15.18 Shift Operators */ | |
12421 | case LSHIFT_EXPR: | |
12422 | case RSHIFT_EXPR: | |
12423 | case URSHIFT_EXPR: | |
12424 | if (!JINTEGRAL_TYPE_P (op1_type) || !JINTEGRAL_TYPE_P (op2_type)) | |
12425 | { | |
12426 | if (!JINTEGRAL_TYPE_P (op1_type)) | |
12427 | ERROR_CAST_NEEDED_TO_INTEGRAL (wfl_operator, node, op1_type); | |
12428 | else | |
1ebadc60 KG |
12429 | { |
12430 | if (JPRIMITIVE_TYPE_P (op2_type)) | |
12431 | parse_error_context (wfl_operator, | |
781b0558 | 12432 | "Incompatible type for `%s'. Explicit cast needed to convert shift distance from `%s' to integral", |
1ebadc60 KG |
12433 | operator_string (node), |
12434 | lang_printable_name (op2_type, 0)); | |
12435 | else | |
781b0558 KG |
12436 | parse_error_context (wfl_operator, |
12437 | "Incompatible type for `%s'. Can't convert shift distance from `%s' to integral", | |
1ebadc60 KG |
12438 | operator_string (node), |
12439 | lang_printable_name (op2_type, 0)); | |
12440 | } | |
e04a16fb AG |
12441 | TREE_TYPE (node) = error_mark_node; |
12442 | error_found = 1; | |
12443 | break; | |
12444 | } | |
12445 | ||
12446 | /* Unary numeric promotion (5.6.1) is performed on each operand | |
12447 | separatly */ | |
15fdcfe9 PB |
12448 | op1 = do_unary_numeric_promotion (op1); |
12449 | op2 = do_unary_numeric_promotion (op2); | |
e04a16fb AG |
12450 | |
12451 | /* The type of the shift expression is the type of the promoted | |
12452 | type of the left-hand operand */ | |
12453 | prom_type = TREE_TYPE (op1); | |
12454 | ||
c2952b01 APB |
12455 | /* Shift int only up to 0x1f and long up to 0x3f */ |
12456 | if (prom_type == int_type_node) | |
12457 | op2 = fold (build (BIT_AND_EXPR, int_type_node, op2, | |
12458 | build_int_2 (0x1f, 0))); | |
12459 | else | |
12460 | op2 = fold (build (BIT_AND_EXPR, int_type_node, op2, | |
12461 | build_int_2 (0x3f, 0))); | |
e04a16fb AG |
12462 | |
12463 | /* The >>> operator is a >> operating on unsigned quantities */ | |
15fdcfe9 | 12464 | if (code == URSHIFT_EXPR && ! flag_emit_class_files) |
e04a16fb | 12465 | { |
0b4d333e | 12466 | tree to_return; |
73333a87 AH |
12467 | tree utype = unsigned_type (prom_type); |
12468 | op1 = convert (utype, op1); | |
e04a16fb | 12469 | TREE_SET_CODE (node, RSHIFT_EXPR); |
73333a87 AH |
12470 | TREE_OPERAND (node, 0) = op1; |
12471 | TREE_OPERAND (node, 1) = op2; | |
12472 | TREE_TYPE (node) = utype; | |
0b4d333e APB |
12473 | to_return = convert (prom_type, node); |
12474 | /* Copy the original value of the COMPOUND_ASSIGN_P flag */ | |
12475 | COMPOUND_ASSIGN_P (to_return) = COMPOUND_ASSIGN_P (node); | |
dc0b3eff PB |
12476 | TREE_SIDE_EFFECTS (to_return) |
12477 | = TREE_SIDE_EFFECTS (op1) | TREE_SIDE_EFFECTS (op2); | |
0b4d333e | 12478 | return to_return; |
e04a16fb AG |
12479 | } |
12480 | break; | |
5e942c50 APB |
12481 | |
12482 | /* 15.19.1 Type Comparison Operator instaceof */ | |
12483 | case INSTANCEOF_EXPR: | |
12484 | ||
12485 | TREE_TYPE (node) = boolean_type_node; | |
12486 | ||
12487 | if (!(op2_type = resolve_type_during_patch (op2))) | |
12488 | return error_mark_node; | |
12489 | ||
12490 | /* The first operand must be a reference type or the null type */ | |
12491 | if (!JREFERENCE_TYPE_P (op1_type) && op1 != null_pointer_node) | |
12492 | error_found = 1; /* Error reported further below */ | |
12493 | ||
12494 | /* The second operand must be a reference type */ | |
12495 | if (!JREFERENCE_TYPE_P (op2_type)) | |
12496 | { | |
12497 | SET_WFL_OPERATOR (wfl_operator, node, wfl_op2); | |
12498 | parse_error_context | |
12499 | (wfl_operator, "Invalid argument `%s' for `instanceof'", | |
12500 | lang_printable_name (op2_type, 0)); | |
12501 | error_found = 1; | |
12502 | } | |
12503 | ||
12504 | if (!error_found && valid_ref_assignconv_cast_p (op1_type, op2_type, 1)) | |
12505 | { | |
12506 | /* If the first operand is null, the result is always false */ | |
12507 | if (op1 == null_pointer_node) | |
12508 | return boolean_false_node; | |
15fdcfe9 PB |
12509 | else if (flag_emit_class_files) |
12510 | { | |
12511 | TREE_OPERAND (node, 1) = op2_type; | |
dc0b3eff | 12512 | TREE_SIDE_EFFECTS (node) = TREE_SIDE_EFFECTS (op1); |
15fdcfe9 PB |
12513 | return node; |
12514 | } | |
5e942c50 APB |
12515 | /* Otherwise we have to invoke instance of to figure it out */ |
12516 | else | |
67db0ce7 | 12517 | return build_instanceof (op1, op2_type); |
5e942c50 APB |
12518 | } |
12519 | /* There is no way the expression operand can be an instance of | |
12520 | the type operand. This is a compile time error. */ | |
12521 | else | |
12522 | { | |
c2e3db92 | 12523 | char *t1 = xstrdup (lang_printable_name (op1_type, 0)); |
5e942c50 APB |
12524 | SET_WFL_OPERATOR (wfl_operator, node, wfl_op1); |
12525 | parse_error_context | |
12526 | (wfl_operator, "Impossible for `%s' to be instance of `%s'", | |
12527 | t1, lang_printable_name (op2_type, 0)); | |
12528 | free (t1); | |
12529 | error_found = 1; | |
12530 | } | |
e04a16fb | 12531 | |
5e942c50 | 12532 | break; |
e04a16fb AG |
12533 | |
12534 | /* 15.21 Bitwise and Logical Operators */ | |
12535 | case BIT_AND_EXPR: | |
12536 | case BIT_XOR_EXPR: | |
12537 | case BIT_IOR_EXPR: | |
12538 | if (JINTEGRAL_TYPE_P (op1_type) && JINTEGRAL_TYPE_P (op2_type)) | |
12539 | /* Binary numeric promotion is performed on both operand and the | |
12540 | expression retain that type */ | |
12541 | prom_type = binary_numeric_promotion (op1_type, op2_type, &op1, &op2); | |
12542 | ||
12543 | else if (TREE_CODE (op1_type) == BOOLEAN_TYPE | |
12544 | && TREE_CODE (op1_type) == BOOLEAN_TYPE) | |
12545 | /* The type of the bitwise operator expression is BOOLEAN */ | |
12546 | prom_type = boolean_type_node; | |
12547 | else | |
12548 | { | |
12549 | if (!JINTEGRAL_TYPE_P (op1_type)) | |
12550 | ERROR_CAST_NEEDED_TO_INTEGRAL (wfl_operator, node, op1_type); | |
12551 | if (!JINTEGRAL_TYPE_P (op2_type) && (op1_type != op2_type)) | |
12552 | ERROR_CAST_NEEDED_TO_INTEGRAL (wfl_operator, node, op2_type); | |
12553 | TREE_TYPE (node) = error_mark_node; | |
12554 | error_found = 1; | |
12555 | /* Insert a break here if adding thing before the switch's | |
12556 | break for this case */ | |
12557 | } | |
12558 | break; | |
12559 | ||
12560 | /* 15.22 Conditional-And Operator */ | |
12561 | case TRUTH_ANDIF_EXPR: | |
12562 | /* 15.23 Conditional-Or Operator */ | |
12563 | case TRUTH_ORIF_EXPR: | |
12564 | /* Operands must be of BOOLEAN type */ | |
12565 | if (TREE_CODE (op1_type) != BOOLEAN_TYPE || | |
12566 | TREE_CODE (op2_type) != BOOLEAN_TYPE) | |
12567 | { | |
12568 | if (TREE_CODE (op1_type) != BOOLEAN_TYPE) | |
12569 | ERROR_CANT_CONVERT_TO_BOOLEAN (wfl_operator, node, op1_type); | |
12570 | if (TREE_CODE (op2_type) != BOOLEAN_TYPE && (op1_type != op2_type)) | |
12571 | ERROR_CANT_CONVERT_TO_BOOLEAN (wfl_operator, node, op2_type); | |
12572 | TREE_TYPE (node) = boolean_type_node; | |
12573 | error_found = 1; | |
12574 | break; | |
12575 | } | |
12576 | /* The type of the conditional operators is BOOLEAN */ | |
12577 | prom_type = boolean_type_node; | |
12578 | break; | |
12579 | ||
12580 | /* 15.19.1 Numerical Comparison Operators <, <=, >, >= */ | |
12581 | case LT_EXPR: | |
12582 | case GT_EXPR: | |
12583 | case LE_EXPR: | |
12584 | case GE_EXPR: | |
12585 | /* The type of each of the operands must be a primitive numeric | |
12586 | type */ | |
12587 | if (!JNUMERIC_TYPE_P (op1_type) || ! JNUMERIC_TYPE_P (op2_type)) | |
12588 | { | |
12589 | if (!JNUMERIC_TYPE_P (op1_type)) | |
12590 | ERROR_CANT_CONVERT_TO_NUMERIC (wfl_operator, node, op1_type); | |
12591 | if (!JNUMERIC_TYPE_P (op2_type) && (op1_type != op2_type)) | |
12592 | ERROR_CANT_CONVERT_TO_NUMERIC (wfl_operator, node, op2_type); | |
12593 | TREE_TYPE (node) = boolean_type_node; | |
12594 | error_found = 1; | |
12595 | break; | |
12596 | } | |
12597 | /* Binary numeric promotion is performed on the operands */ | |
12598 | binary_numeric_promotion (op1_type, op2_type, &op1, &op2); | |
12599 | /* The type of the relation expression is always BOOLEAN */ | |
12600 | prom_type = boolean_type_node; | |
12601 | break; | |
12602 | ||
12603 | /* 15.20 Equality Operator */ | |
12604 | case EQ_EXPR: | |
12605 | case NE_EXPR: | |
48a840d9 APB |
12606 | /* It's time for us to patch the strings. */ |
12607 | if ((cn = patch_string (op1))) | |
12608 | { | |
12609 | op1 = cn; | |
12610 | op1_type = TREE_TYPE (op1); | |
12611 | } | |
12612 | if ((cn = patch_string (op2))) | |
12613 | { | |
12614 | op2 = cn; | |
12615 | op2_type = TREE_TYPE (op2); | |
12616 | } | |
12617 | ||
e04a16fb AG |
12618 | /* 15.20.1 Numerical Equality Operators == and != */ |
12619 | /* Binary numeric promotion is performed on the operands */ | |
5e942c50 | 12620 | if (JNUMERIC_TYPE_P (op1_type) && JNUMERIC_TYPE_P (op2_type)) |
e04a16fb AG |
12621 | binary_numeric_promotion (op1_type, op2_type, &op1, &op2); |
12622 | ||
12623 | /* 15.20.2 Boolean Equality Operators == and != */ | |
12624 | else if (TREE_CODE (op1_type) == BOOLEAN_TYPE && | |
12625 | TREE_CODE (op2_type) == BOOLEAN_TYPE) | |
12626 | ; /* Nothing to do here */ | |
12627 | ||
12628 | /* 15.20.3 Reference Equality Operators == and != */ | |
5e942c50 APB |
12629 | /* Types have to be either references or the null type. If |
12630 | they're references, it must be possible to convert either | |
12631 | type to the other by casting conversion. */ | |
b9f7e36c APB |
12632 | else if (op1 == null_pointer_node || op2 == null_pointer_node |
12633 | || (JREFERENCE_TYPE_P (op1_type) && JREFERENCE_TYPE_P (op2_type) | |
5e942c50 APB |
12634 | && (valid_ref_assignconv_cast_p (op1_type, op2_type, 1) |
12635 | || valid_ref_assignconv_cast_p (op2_type, | |
12636 | op1_type, 1)))) | |
e04a16fb AG |
12637 | ; /* Nothing to do here */ |
12638 | ||
12639 | /* Else we have an error figure what can't be converted into | |
12640 | what and report the error */ | |
12641 | else | |
12642 | { | |
12643 | char *t1; | |
c2e3db92 | 12644 | t1 = xstrdup (lang_printable_name (op1_type, 0)); |
e04a16fb | 12645 | parse_error_context |
781b0558 KG |
12646 | (wfl_operator, |
12647 | "Incompatible type for `%s'. Can't convert `%s' to `%s'", | |
12648 | operator_string (node), t1, | |
0a2138e2 | 12649 | lang_printable_name (op2_type, 0)); |
e04a16fb AG |
12650 | free (t1); |
12651 | TREE_TYPE (node) = boolean_type_node; | |
12652 | error_found = 1; | |
12653 | break; | |
12654 | } | |
12655 | prom_type = boolean_type_node; | |
12656 | break; | |
12657 | } | |
12658 | ||
e04a16fb AG |
12659 | if (error_found) |
12660 | return error_mark_node; | |
12661 | ||
12662 | TREE_OPERAND (node, 0) = op1; | |
12663 | TREE_OPERAND (node, 1) = op2; | |
12664 | TREE_TYPE (node) = prom_type; | |
dc0b3eff PB |
12665 | TREE_SIDE_EFFECTS (node) = TREE_SIDE_EFFECTS (op1) | TREE_SIDE_EFFECTS (op2); |
12666 | ||
ce6e9147 APB |
12667 | if (flag_emit_xref) |
12668 | return node; | |
12669 | ||
d1472141 PB |
12670 | /* fold does not respect side-effect order as required for Java but not C. |
12671 | * Also, it sometimes create SAVE_EXPRs which are bad when emitting | |
12672 | * bytecode. | |
12673 | */ | |
12674 | if (flag_emit_class_files ? (TREE_CONSTANT (op1) && TREE_CONSTANT (op2)) | |
12675 | : ! TREE_SIDE_EFFECTS (node)) | |
aee48ef8 PB |
12676 | node = fold (node); |
12677 | return node; | |
e04a16fb AG |
12678 | } |
12679 | ||
b67d701b PB |
12680 | /* Concatenate the STRING_CST CSTE and STRING. When AFTER is a non |
12681 | zero value, the value of CSTE comes after the valude of STRING */ | |
12682 | ||
12683 | static tree | |
12684 | do_merge_string_cste (cste, string, string_len, after) | |
12685 | tree cste; | |
49f48c71 | 12686 | const char *string; |
b67d701b PB |
12687 | int string_len, after; |
12688 | { | |
12689 | int len = TREE_STRING_LENGTH (cste) + string_len; | |
49f48c71 | 12690 | const char *old = TREE_STRING_POINTER (cste); |
b67d701b PB |
12691 | TREE_STRING_LENGTH (cste) = len; |
12692 | TREE_STRING_POINTER (cste) = obstack_alloc (expression_obstack, len+1); | |
12693 | if (after) | |
12694 | { | |
12695 | strcpy (TREE_STRING_POINTER (cste), string); | |
12696 | strcat (TREE_STRING_POINTER (cste), old); | |
12697 | } | |
12698 | else | |
12699 | { | |
12700 | strcpy (TREE_STRING_POINTER (cste), old); | |
12701 | strcat (TREE_STRING_POINTER (cste), string); | |
12702 | } | |
12703 | return cste; | |
12704 | } | |
12705 | ||
12706 | /* Tries to merge OP1 (a STRING_CST) and OP2 (if suitable). Return a | |
12707 | new STRING_CST on success, NULL_TREE on failure */ | |
12708 | ||
12709 | static tree | |
12710 | merge_string_cste (op1, op2, after) | |
12711 | tree op1, op2; | |
12712 | int after; | |
12713 | { | |
12714 | /* Handle two string constants right away */ | |
12715 | if (TREE_CODE (op2) == STRING_CST) | |
12716 | return do_merge_string_cste (op1, TREE_STRING_POINTER (op2), | |
12717 | TREE_STRING_LENGTH (op2), after); | |
12718 | ||
12719 | /* Reasonable integer constant can be treated right away */ | |
12720 | if (TREE_CODE (op2) == INTEGER_CST && !TREE_CONSTANT_OVERFLOW (op2)) | |
12721 | { | |
49f48c71 KG |
12722 | static const char *boolean_true = "true"; |
12723 | static const char *boolean_false = "false"; | |
12724 | static const char *null_pointer = "null"; | |
b67d701b | 12725 | char ch[3]; |
49f48c71 | 12726 | const char *string; |
b67d701b PB |
12727 | |
12728 | if (op2 == boolean_true_node) | |
12729 | string = boolean_true; | |
12730 | else if (op2 == boolean_false_node) | |
12731 | string = boolean_false; | |
12732 | else if (op2 == null_pointer_node) | |
12733 | string = null_pointer; | |
12734 | else if (TREE_TYPE (op2) == char_type_node) | |
12735 | { | |
12736 | ch[0] = (char )TREE_INT_CST_LOW (op2); | |
12737 | ch[1] = '\0'; | |
12738 | string = ch; | |
12739 | } | |
12740 | else | |
12741 | string = print_int_node (op2); | |
12742 | ||
12743 | return do_merge_string_cste (op1, string, strlen (string), after); | |
12744 | } | |
12745 | return NULL_TREE; | |
12746 | } | |
12747 | ||
12748 | /* Tries to statically concatenate OP1 and OP2 if possible. Either one | |
12749 | has to be a STRING_CST and the other part must be a STRING_CST or a | |
12750 | INTEGRAL constant. Return a new STRING_CST if the operation | |
12751 | succeed, NULL_TREE otherwise. | |
12752 | ||
12753 | If the case we want to optimize for space, we might want to return | |
12754 | NULL_TREE for each invocation of this routine. FIXME */ | |
12755 | ||
12756 | static tree | |
12757 | string_constant_concatenation (op1, op2) | |
12758 | tree op1, op2; | |
12759 | { | |
12760 | if (TREE_CODE (op1) == STRING_CST || (TREE_CODE (op2) == STRING_CST)) | |
12761 | { | |
0a2138e2 | 12762 | tree string, rest; |
b67d701b PB |
12763 | int invert; |
12764 | ||
12765 | string = (TREE_CODE (op1) == STRING_CST ? op1 : op2); | |
12766 | rest = (string == op1 ? op2 : op1); | |
12767 | invert = (string == op1 ? 0 : 1 ); | |
12768 | ||
12769 | /* Walk REST, only if it looks reasonable */ | |
12770 | if (TREE_CODE (rest) != STRING_CST | |
12771 | && !IS_CRAFTED_STRING_BUFFER_P (rest) | |
12772 | && !JSTRING_TYPE_P (TREE_TYPE (rest)) | |
12773 | && TREE_CODE (rest) == EXPR_WITH_FILE_LOCATION) | |
12774 | { | |
12775 | rest = java_complete_tree (rest); | |
12776 | if (rest == error_mark_node) | |
12777 | return error_mark_node; | |
12778 | rest = fold (rest); | |
12779 | } | |
12780 | return merge_string_cste (string, rest, invert); | |
12781 | } | |
12782 | return NULL_TREE; | |
12783 | } | |
12784 | ||
12785 | /* Implement the `+' operator. Does static optimization if possible, | |
12786 | otherwise create (if necessary) and append elements to a | |
12787 | StringBuffer. The StringBuffer will be carried around until it is | |
12788 | used for a function call or an assignment. Then toString() will be | |
12789 | called on it to turn it into a String object. */ | |
12790 | ||
12791 | static tree | |
12792 | build_string_concatenation (op1, op2) | |
12793 | tree op1, op2; | |
12794 | { | |
12795 | tree result; | |
dc0b3eff | 12796 | int side_effects = TREE_SIDE_EFFECTS (op1) | TREE_SIDE_EFFECTS (op2); |
ce6e9147 APB |
12797 | |
12798 | if (flag_emit_xref) | |
12799 | return build (PLUS_EXPR, string_type_node, op1, op2); | |
b67d701b PB |
12800 | |
12801 | /* Try to do some static optimization */ | |
12802 | if ((result = string_constant_concatenation (op1, op2))) | |
12803 | return result; | |
12804 | ||
c0d87ff6 PB |
12805 | /* Discard empty strings on either side of the expression */ |
12806 | if (TREE_CODE (op1) == STRING_CST && TREE_STRING_LENGTH (op1) == 0) | |
acd663ee APB |
12807 | { |
12808 | op1 = op2; | |
12809 | op2 = NULL_TREE; | |
12810 | } | |
c0d87ff6 | 12811 | else if (TREE_CODE (op2) == STRING_CST && TREE_STRING_LENGTH (op2) == 0) |
acd663ee | 12812 | op2 = NULL_TREE; |
b67d701b | 12813 | |
acd663ee | 12814 | /* If operands are string constant, turn then into object references */ |
b67d701b PB |
12815 | if (TREE_CODE (op1) == STRING_CST) |
12816 | op1 = patch_string_cst (op1); | |
acd663ee | 12817 | if (op2 && TREE_CODE (op2) == STRING_CST) |
b67d701b PB |
12818 | op2 = patch_string_cst (op2); |
12819 | ||
acd663ee APB |
12820 | /* If either one of the constant is null and the other non null |
12821 | operand is a String object, return it. */ | |
12822 | if (JSTRING_TYPE_P (TREE_TYPE (op1)) && !op2) | |
12823 | return op1; | |
12824 | ||
b67d701b PB |
12825 | /* If OP1 isn't already a StringBuffer, create and |
12826 | initialize a new one */ | |
12827 | if (!IS_CRAFTED_STRING_BUFFER_P (op1)) | |
12828 | { | |
12829 | /* Two solutions here: | |
c52b5771 AG |
12830 | 1) OP1 is a constant string reference, we call new StringBuffer(OP1) |
12831 | 2) OP1 is something else, we call new StringBuffer().append(OP1). */ | |
12832 | if (TREE_CONSTANT (op1) && JSTRING_TYPE_P (TREE_TYPE (op1))) | |
b67d701b PB |
12833 | op1 = BUILD_STRING_BUFFER (op1); |
12834 | else | |
12835 | { | |
12836 | tree aNew = BUILD_STRING_BUFFER (NULL_TREE); | |
12837 | op1 = make_qualified_primary (aNew, BUILD_APPEND (op1), 0); | |
12838 | } | |
12839 | } | |
12840 | ||
acd663ee APB |
12841 | if (op2) |
12842 | { | |
12843 | /* OP1 is no longer the last node holding a crafted StringBuffer */ | |
12844 | IS_CRAFTED_STRING_BUFFER_P (op1) = 0; | |
12845 | /* Create a node for `{new...,xxx}.append (op2)' */ | |
12846 | if (op2) | |
12847 | op1 = make_qualified_primary (op1, BUILD_APPEND (op2), 0); | |
12848 | } | |
12849 | ||
b67d701b PB |
12850 | /* Mark the last node holding a crafted StringBuffer */ |
12851 | IS_CRAFTED_STRING_BUFFER_P (op1) = 1; | |
dc0b3eff PB |
12852 | |
12853 | TREE_SIDE_EFFECTS (op1) = side_effects; | |
b67d701b PB |
12854 | return op1; |
12855 | } | |
12856 | ||
12857 | /* Patch the string node NODE. NODE can be a STRING_CST of a crafted | |
12858 | StringBuffer. If no string were found to be patched, return | |
12859 | NULL. */ | |
12860 | ||
12861 | static tree | |
12862 | patch_string (node) | |
12863 | tree node; | |
12864 | { | |
1179ebc2 APB |
12865 | if (node == error_mark_node) |
12866 | return error_mark_node; | |
b67d701b PB |
12867 | if (TREE_CODE (node) == STRING_CST) |
12868 | return patch_string_cst (node); | |
12869 | else if (IS_CRAFTED_STRING_BUFFER_P (node)) | |
12870 | { | |
c877974e | 12871 | int saved = ctxp->explicit_constructor_p; |
b67d701b | 12872 | tree invoke = build_method_invocation (wfl_to_string, NULL_TREE); |
c877974e APB |
12873 | tree ret; |
12874 | /* Temporary disable forbid the use of `this'. */ | |
12875 | ctxp->explicit_constructor_p = 0; | |
12876 | ret = java_complete_tree (make_qualified_primary (node, invoke, 0)); | |
1729c265 APB |
12877 | /* String concatenation arguments must be evaluated in order too. */ |
12878 | ret = force_evaluation_order (ret); | |
c877974e APB |
12879 | /* Restore it at its previous value */ |
12880 | ctxp->explicit_constructor_p = saved; | |
12881 | return ret; | |
b67d701b PB |
12882 | } |
12883 | return NULL_TREE; | |
12884 | } | |
12885 | ||
12886 | /* Build the internal representation of a string constant. */ | |
12887 | ||
12888 | static tree | |
12889 | patch_string_cst (node) | |
12890 | tree node; | |
12891 | { | |
12892 | int location; | |
15fdcfe9 PB |
12893 | if (! flag_emit_class_files) |
12894 | { | |
12895 | push_obstacks (&permanent_obstack, &permanent_obstack); | |
12896 | node = get_identifier (TREE_STRING_POINTER (node)); | |
12897 | location = alloc_name_constant (CONSTANT_String, node); | |
12898 | node = build_ref_from_constant_pool (location); | |
8226320b | 12899 | pop_obstacks (); |
15fdcfe9 | 12900 | } |
cd9643f7 | 12901 | TREE_TYPE (node) = string_ptr_type_node; |
b67d701b PB |
12902 | TREE_CONSTANT (node) = 1; |
12903 | return node; | |
12904 | } | |
12905 | ||
12906 | /* Build an incomplete unary operator expression. */ | |
e04a16fb AG |
12907 | |
12908 | static tree | |
12909 | build_unaryop (op_token, op_location, op1) | |
12910 | int op_token, op_location; | |
12911 | tree op1; | |
12912 | { | |
12913 | enum tree_code op; | |
12914 | tree unaryop; | |
12915 | switch (op_token) | |
12916 | { | |
b67d701b | 12917 | case PLUS_TK: op = UNARY_PLUS_EXPR; break; |
e04a16fb AG |
12918 | case MINUS_TK: op = NEGATE_EXPR; break; |
12919 | case NEG_TK: op = TRUTH_NOT_EXPR; break; | |
12920 | case NOT_TK: op = BIT_NOT_EXPR; break; | |
12921 | default: fatal ("Unknown token `%d' for unary operator - build_unaryop", | |
12922 | op_token); | |
12923 | } | |
12924 | ||
12925 | unaryop = build1 (op, NULL_TREE, op1); | |
e04a16fb AG |
12926 | TREE_SIDE_EFFECTS (unaryop) = 1; |
12927 | /* Store the location of the operator, for better error report. The | |
12928 | string of the operator will be rebuild based on the OP value. */ | |
12929 | EXPR_WFL_LINECOL (unaryop) = op_location; | |
12930 | return unaryop; | |
12931 | } | |
12932 | ||
12933 | /* Special case for the ++/-- operators, since they require an extra | |
12934 | argument to build, which is set to NULL and patched | |
12935 | later. IS_POST_P is 1 if the operator, 0 otherwise. */ | |
12936 | ||
12937 | static tree | |
12938 | build_incdec (op_token, op_location, op1, is_post_p) | |
12939 | int op_token, op_location; | |
12940 | tree op1; | |
12941 | int is_post_p; | |
12942 | { | |
12943 | static enum tree_code lookup [2][2] = | |
12944 | { | |
12945 | { PREDECREMENT_EXPR, PREINCREMENT_EXPR, }, | |
12946 | { POSTDECREMENT_EXPR, POSTINCREMENT_EXPR, }, | |
12947 | }; | |
12948 | tree node = build (lookup [is_post_p][(op_token - DECR_TK)], | |
12949 | NULL_TREE, op1, NULL_TREE); | |
12950 | TREE_SIDE_EFFECTS (node) = 1; | |
12951 | /* Store the location of the operator, for better error report. The | |
12952 | string of the operator will be rebuild based on the OP value. */ | |
12953 | EXPR_WFL_LINECOL (node) = op_location; | |
12954 | return node; | |
12955 | } | |
12956 | ||
12957 | /* Build an incomplete cast operator, based on the use of the | |
12958 | CONVERT_EXPR. Note that TREE_TYPE of the constructed node is | |
12959 | set. java_complete_tree is trained to walk a CONVERT_EXPR even | |
12960 | though its type is already set. */ | |
12961 | ||
12962 | static tree | |
12963 | build_cast (location, type, exp) | |
12964 | int location; | |
12965 | tree type, exp; | |
12966 | { | |
12967 | tree node = build1 (CONVERT_EXPR, type, exp); | |
12968 | EXPR_WFL_LINECOL (node) = location; | |
12969 | return node; | |
12970 | } | |
12971 | ||
c2952b01 APB |
12972 | /* Build an incomplete class reference operator. */ |
12973 | static tree | |
12974 | build_incomplete_class_ref (location, class_name) | |
12975 | int location; | |
12976 | tree class_name; | |
12977 | { | |
12978 | tree node = build1 (CLASS_LITERAL, NULL_TREE, class_name); | |
12979 | EXPR_WFL_LINECOL (node) = location; | |
12980 | return node; | |
12981 | } | |
12982 | ||
12983 | /* Complete an incomplete class reference operator. */ | |
12984 | static tree | |
12985 | patch_incomplete_class_ref (node) | |
12986 | tree node; | |
12987 | { | |
12988 | tree type = TREE_OPERAND (node, 0); | |
12989 | tree ref_type; | |
12990 | ||
12991 | if (!(ref_type = resolve_type_during_patch (type))) | |
12992 | return error_mark_node; | |
12993 | ||
165f37bc APB |
12994 | if (!flag_emit_class_files || JPRIMITIVE_TYPE_P (ref_type)) |
12995 | return build_class_ref (ref_type); | |
12996 | ||
12997 | /* If we're emitting class files and we have to deal with non | |
12998 | primitive types, we invoke (and consider generating) the | |
12999 | synthetic static method `class$'. */ | |
13000 | if (!TYPE_DOT_CLASS (current_class)) | |
13001 | build_dot_class_method (current_class); | |
13002 | ref_type = | |
13003 | build_dot_class_method_invocation (DECL_NAME (TYPE_NAME (ref_type))); | |
13004 | return java_complete_tree (ref_type); | |
c2952b01 APB |
13005 | } |
13006 | ||
e04a16fb AG |
13007 | /* 15.14 Unary operators. We return error_mark_node in case of error, |
13008 | but preserve the type of NODE if the type is fixed. */ | |
13009 | ||
13010 | static tree | |
13011 | patch_unaryop (node, wfl_op) | |
13012 | tree node; | |
13013 | tree wfl_op; | |
13014 | { | |
13015 | tree op = TREE_OPERAND (node, 0); | |
13016 | tree op_type = TREE_TYPE (op); | |
ab3a6dd6 | 13017 | tree prom_type = NULL_TREE, value, decl; |
c2952b01 | 13018 | int outer_field_flag = 0; |
e04a16fb AG |
13019 | int code = TREE_CODE (node); |
13020 | int error_found = 0; | |
13021 | ||
13022 | EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node); | |
13023 | ||
13024 | switch (code) | |
13025 | { | |
13026 | /* 15.13.2 Postfix Increment Operator ++ */ | |
13027 | case POSTINCREMENT_EXPR: | |
13028 | /* 15.13.3 Postfix Increment Operator -- */ | |
13029 | case POSTDECREMENT_EXPR: | |
13030 | /* 15.14.1 Prefix Increment Operator ++ */ | |
13031 | case PREINCREMENT_EXPR: | |
13032 | /* 15.14.2 Prefix Decrement Operator -- */ | |
13033 | case PREDECREMENT_EXPR: | |
5cbdba64 | 13034 | op = decl = strip_out_static_field_access_decl (op); |
c2952b01 APB |
13035 | outer_field_flag = outer_field_expanded_access_p (op, NULL, NULL, NULL); |
13036 | /* We might be trying to change an outer field accessed using | |
13037 | access method. */ | |
13038 | if (outer_field_flag) | |
13039 | { | |
13040 | /* Retrieve the decl of the field we're trying to access. We | |
13041 | do that by first retrieving the function we would call to | |
13042 | access the field. It has been already verified that this | |
13043 | field isn't final */ | |
13044 | if (flag_emit_class_files) | |
13045 | decl = TREE_OPERAND (op, 0); | |
13046 | else | |
13047 | decl = TREE_OPERAND (TREE_OPERAND (TREE_OPERAND (op, 0), 0), 0); | |
13048 | decl = DECL_FUNCTION_ACCESS_DECL (decl); | |
13049 | } | |
b3edebcf | 13050 | /* We really should have a JAVA_ARRAY_EXPR to avoid this */ |
c2952b01 | 13051 | else if (!JDECL_P (decl) |
b3edebcf APB |
13052 | && TREE_CODE (decl) != COMPONENT_REF |
13053 | && !(flag_emit_class_files && TREE_CODE (decl) == ARRAY_REF) | |
13054 | && TREE_CODE (decl) != INDIRECT_REF | |
13055 | && !(TREE_CODE (decl) == COMPOUND_EXPR | |
13056 | && TREE_OPERAND (decl, 1) | |
13057 | && (TREE_CODE (TREE_OPERAND (decl, 1)) == INDIRECT_REF))) | |
e04a16fb | 13058 | { |
5e942c50 APB |
13059 | tree lvalue; |
13060 | /* Before screaming, check that we're not in fact trying to | |
13061 | increment a optimized static final access, in which case | |
13062 | we issue an different error message. */ | |
13063 | if (!(TREE_CODE (wfl_op) == EXPR_WITH_FILE_LOCATION | |
13064 | && resolve_expression_name (wfl_op, &lvalue) | |
13065 | && check_final_assignment (lvalue, wfl_op))) | |
13066 | parse_error_context (wfl_operator, "Invalid argument to `%s'", | |
13067 | operator_string (node)); | |
e04a16fb AG |
13068 | TREE_TYPE (node) = error_mark_node; |
13069 | error_found = 1; | |
13070 | } | |
c2952b01 APB |
13071 | |
13072 | if (check_final_assignment (op, wfl_op)) | |
5e942c50 APB |
13073 | error_found = 1; |
13074 | ||
e04a16fb AG |
13075 | /* From now on, we know that op if a variable and that it has a |
13076 | valid wfl. We use wfl_op to locate errors related to the | |
13077 | ++/-- operand. */ | |
13078 | else if (!JNUMERIC_TYPE_P (op_type)) | |
13079 | { | |
13080 | parse_error_context | |
13081 | (wfl_op, "Invalid argument type `%s' to `%s'", | |
0a2138e2 | 13082 | lang_printable_name (op_type, 0), operator_string (node)); |
e04a16fb AG |
13083 | TREE_TYPE (node) = error_mark_node; |
13084 | error_found = 1; | |
13085 | } | |
13086 | else | |
13087 | { | |
4a5f66c3 | 13088 | /* Before the addition, binary numeric promotion is performed on |
5cbdba64 APB |
13089 | both operands, if really necessary */ |
13090 | if (JINTEGRAL_TYPE_P (op_type)) | |
13091 | { | |
13092 | value = build_int_2 (1, 0); | |
13093 | TREE_TYPE (value) = TREE_TYPE (node) = op_type; | |
13094 | } | |
13095 | else | |
13096 | { | |
13097 | value = build_int_2 (1, 0); | |
13098 | TREE_TYPE (node) = | |
13099 | binary_numeric_promotion (op_type, | |
13100 | TREE_TYPE (value), &op, &value); | |
13101 | } | |
c2952b01 APB |
13102 | |
13103 | /* We remember we might be accessing an outer field */ | |
13104 | if (outer_field_flag) | |
13105 | { | |
13106 | /* We re-generate an access to the field */ | |
13107 | value = build (PLUS_EXPR, TREE_TYPE (op), | |
13108 | build_outer_field_access (wfl_op, decl), value); | |
13109 | ||
13110 | /* And we patch the original access$() into a write | |
13111 | with plus_op as a rhs */ | |
13112 | return outer_field_access_fix (node, op, value); | |
13113 | } | |
13114 | ||
5cbdba64 | 13115 | /* And write back into the node. */ |
4a5f66c3 | 13116 | TREE_OPERAND (node, 0) = op; |
e04a16fb | 13117 | TREE_OPERAND (node, 1) = value; |
5cbdba64 APB |
13118 | /* Convert the overall back into its original type, if |
13119 | necessary, and return */ | |
13120 | if (JINTEGRAL_TYPE_P (op_type)) | |
13121 | return fold (node); | |
13122 | else | |
13123 | return fold (convert (op_type, node)); | |
e04a16fb AG |
13124 | } |
13125 | break; | |
13126 | ||
13127 | /* 15.14.3 Unary Plus Operator + */ | |
b67d701b | 13128 | case UNARY_PLUS_EXPR: |
e04a16fb AG |
13129 | /* 15.14.4 Unary Minus Operator - */ |
13130 | case NEGATE_EXPR: | |
13131 | if (!JNUMERIC_TYPE_P (op_type)) | |
13132 | { | |
13133 | ERROR_CANT_CONVERT_TO_NUMERIC (wfl_operator, node, op_type); | |
13134 | TREE_TYPE (node) = error_mark_node; | |
13135 | error_found = 1; | |
13136 | } | |
13137 | /* Unary numeric promotion is performed on operand */ | |
13138 | else | |
13139 | { | |
15fdcfe9 PB |
13140 | op = do_unary_numeric_promotion (op); |
13141 | prom_type = TREE_TYPE (op); | |
b67d701b | 13142 | if (code == UNARY_PLUS_EXPR) |
4a5f66c3 | 13143 | return fold (op); |
e04a16fb AG |
13144 | } |
13145 | break; | |
13146 | ||
13147 | /* 15.14.5 Bitwise Complement Operator ~ */ | |
13148 | case BIT_NOT_EXPR: | |
13149 | if (!JINTEGRAL_TYPE_P (op_type)) | |
13150 | { | |
13151 | ERROR_CAST_NEEDED_TO_INTEGRAL (wfl_operator, node, op_type); | |
13152 | TREE_TYPE (node) = error_mark_node; | |
13153 | error_found = 1; | |
13154 | } | |
13155 | else | |
13156 | { | |
15fdcfe9 PB |
13157 | op = do_unary_numeric_promotion (op); |
13158 | prom_type = TREE_TYPE (op); | |
e04a16fb AG |
13159 | } |
13160 | break; | |
13161 | ||
13162 | /* 15.14.6 Logical Complement Operator ! */ | |
13163 | case TRUTH_NOT_EXPR: | |
13164 | if (TREE_CODE (op_type) != BOOLEAN_TYPE) | |
13165 | { | |
13166 | ERROR_CANT_CONVERT_TO_BOOLEAN (wfl_operator, node, op_type); | |
c877974e APB |
13167 | /* But the type is known. We will report an error if further |
13168 | attempt of a assignment is made with this rhs */ | |
e04a16fb AG |
13169 | TREE_TYPE (node) = boolean_type_node; |
13170 | error_found = 1; | |
13171 | } | |
13172 | else | |
13173 | prom_type = boolean_type_node; | |
13174 | break; | |
13175 | ||
13176 | /* 15.15 Cast Expression */ | |
13177 | case CONVERT_EXPR: | |
0a2138e2 | 13178 | value = patch_cast (node, wfl_operator); |
e04a16fb | 13179 | if (value == error_mark_node) |
c877974e APB |
13180 | { |
13181 | /* If this cast is part of an assignment, we tell the code | |
13182 | that deals with it not to complain about a mismatch, | |
13183 | because things have been cast, anyways */ | |
13184 | TREE_TYPE (node) = error_mark_node; | |
13185 | error_found = 1; | |
13186 | } | |
13187 | else | |
dc0b3eff PB |
13188 | { |
13189 | value = fold (value); | |
13190 | TREE_SIDE_EFFECTS (value) = TREE_SIDE_EFFECTS (op); | |
13191 | return value; | |
13192 | } | |
e04a16fb AG |
13193 | break; |
13194 | } | |
13195 | ||
e04a16fb AG |
13196 | if (error_found) |
13197 | return error_mark_node; | |
4a5f66c3 APB |
13198 | |
13199 | /* There are cases where node has been replaced by something else | |
13200 | and we don't end up returning here: UNARY_PLUS_EXPR, | |
13201 | CONVERT_EXPR, {POST,PRE}{INCR,DECR}EMENT_EXPR. */ | |
7525cc04 | 13202 | TREE_OPERAND (node, 0) = fold (op); |
4a5f66c3 | 13203 | TREE_TYPE (node) = prom_type; |
dc0b3eff | 13204 | TREE_SIDE_EFFECTS (node) = TREE_SIDE_EFFECTS (op); |
e04a16fb AG |
13205 | return fold (node); |
13206 | } | |
13207 | ||
13208 | /* Generic type resolution that sometimes takes place during node | |
13209 | patching. Returned the resolved type or generate an error | |
13210 | message. Return the resolved type or NULL_TREE. */ | |
13211 | ||
13212 | static tree | |
13213 | resolve_type_during_patch (type) | |
13214 | tree type; | |
13215 | { | |
13216 | if (unresolved_type_p (type, NULL)) | |
13217 | { | |
13218 | tree type_decl = resolve_no_layout (EXPR_WFL_NODE (type), NULL_TREE); | |
13219 | if (!type_decl) | |
13220 | { | |
13221 | parse_error_context (type, | |
13222 | "Class `%s' not found in type declaration", | |
13223 | IDENTIFIER_POINTER (EXPR_WFL_NODE (type))); | |
13224 | return NULL_TREE; | |
13225 | } | |
13226 | else | |
5e942c50 APB |
13227 | { |
13228 | CLASS_LOADED_P (TREE_TYPE (type_decl)) = 1; | |
13229 | return TREE_TYPE (type_decl); | |
13230 | } | |
e04a16fb AG |
13231 | } |
13232 | return type; | |
13233 | } | |
13234 | /* 5.5 Casting Conversion. error_mark_node is returned if an error is | |
13235 | found. Otherwise NODE or something meant to replace it is returned. */ | |
13236 | ||
13237 | static tree | |
0a2138e2 | 13238 | patch_cast (node, wfl_operator) |
e04a16fb | 13239 | tree node; |
e04a16fb AG |
13240 | tree wfl_operator; |
13241 | { | |
13242 | tree op = TREE_OPERAND (node, 0); | |
13243 | tree op_type = TREE_TYPE (op); | |
13244 | tree cast_type = TREE_TYPE (node); | |
13245 | char *t1; | |
13246 | ||
13247 | /* First resolve OP_TYPE if unresolved */ | |
13248 | if (!(cast_type = resolve_type_during_patch (cast_type))) | |
13249 | return error_mark_node; | |
13250 | ||
13251 | /* Check on cast that are proven correct at compile time */ | |
13252 | if (JNUMERIC_TYPE_P (cast_type) && JNUMERIC_TYPE_P (op_type)) | |
13253 | { | |
e04a16fb AG |
13254 | /* Same type */ |
13255 | if (cast_type == op_type) | |
13256 | return node; | |
13257 | ||
0b4d333e APB |
13258 | /* float and double type are converted to the original type main |
13259 | variant and then to the target type. */ | |
13260 | if (JFLOAT_TYPE_P (op_type) && TREE_CODE (cast_type) == CHAR_TYPE) | |
13261 | op = convert (integer_type_node, op); | |
13262 | ||
e04a16fb AG |
13263 | /* Try widening/narowwing convertion. Potentially, things need |
13264 | to be worked out in gcc so we implement the extreme cases | |
13265 | correctly. fold_convert() needs to be fixed. */ | |
13266 | return convert (cast_type, op); | |
13267 | } | |
13268 | ||
0b4d333e APB |
13269 | /* It's also valid to cast a boolean into a boolean */ |
13270 | if (op_type == boolean_type_node && cast_type == boolean_type_node) | |
13271 | return node; | |
13272 | ||
5e942c50 APB |
13273 | /* null can be casted to references */ |
13274 | if (op == null_pointer_node && JREFERENCE_TYPE_P (cast_type)) | |
13275 | return build_null_of_type (cast_type); | |
13276 | ||
e04a16fb AG |
13277 | /* The remaining legal casts involve conversion between reference |
13278 | types. Check for their compile time correctness. */ | |
13279 | if (JREFERENCE_TYPE_P (op_type) && JREFERENCE_TYPE_P (cast_type) | |
09ed0f70 | 13280 | && valid_ref_assignconv_cast_p (op_type, cast_type, 1)) |
e04a16fb AG |
13281 | { |
13282 | TREE_TYPE (node) = promote_type (cast_type); | |
13283 | /* Now, the case can be determined correct at compile time if | |
13284 | OP_TYPE can be converted into CAST_TYPE by assignment | |
13285 | conversion (5.2) */ | |
13286 | ||
13287 | if (valid_ref_assignconv_cast_p (op_type, cast_type, 0)) | |
15fdcfe9 PB |
13288 | { |
13289 | TREE_SET_CODE (node, NOP_EXPR); | |
13290 | return node; | |
13291 | } | |
13292 | ||
13293 | if (flag_emit_class_files) | |
13294 | { | |
13295 | TREE_SET_CODE (node, CONVERT_EXPR); | |
13296 | return node; | |
13297 | } | |
e04a16fb AG |
13298 | |
13299 | /* The cast requires a run-time check */ | |
13300 | return build (CALL_EXPR, promote_type (cast_type), | |
13301 | build_address_of (soft_checkcast_node), | |
13302 | tree_cons (NULL_TREE, build_class_ref (cast_type), | |
13303 | build_tree_list (NULL_TREE, op)), | |
13304 | NULL_TREE); | |
13305 | } | |
13306 | ||
13307 | /* Any other casts are proven incorrect at compile time */ | |
c2e3db92 | 13308 | t1 = xstrdup (lang_printable_name (op_type, 0)); |
e04a16fb | 13309 | parse_error_context (wfl_operator, "Invalid cast from `%s' to `%s'", |
0a2138e2 | 13310 | t1, lang_printable_name (cast_type, 0)); |
e04a16fb AG |
13311 | free (t1); |
13312 | return error_mark_node; | |
13313 | } | |
13314 | ||
5e942c50 APB |
13315 | /* Build a null constant and give it the type TYPE. */ |
13316 | ||
13317 | static tree | |
13318 | build_null_of_type (type) | |
13319 | tree type; | |
13320 | { | |
13321 | tree node = build_int_2 (0, 0); | |
13322 | TREE_TYPE (node) = promote_type (type); | |
13323 | return node; | |
13324 | } | |
13325 | ||
e04a16fb AG |
13326 | /* Build an ARRAY_REF incomplete tree node. Note that operand 1 isn't |
13327 | a list of indices. */ | |
13328 | static tree | |
13329 | build_array_ref (location, array, index) | |
13330 | int location; | |
13331 | tree array, index; | |
13332 | { | |
13333 | tree node = build (ARRAY_REF, NULL_TREE, array, index); | |
13334 | EXPR_WFL_LINECOL (node) = location; | |
13335 | return node; | |
13336 | } | |
13337 | ||
13338 | /* 15.12 Array Access Expression */ | |
13339 | ||
13340 | static tree | |
c877974e APB |
13341 | patch_array_ref (node) |
13342 | tree node; | |
e04a16fb AG |
13343 | { |
13344 | tree array = TREE_OPERAND (node, 0); | |
13345 | tree array_type = TREE_TYPE (array); | |
13346 | tree index = TREE_OPERAND (node, 1); | |
13347 | tree index_type = TREE_TYPE (index); | |
e04a16fb AG |
13348 | int error_found = 0; |
13349 | ||
13350 | EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node); | |
13351 | ||
e04a16fb AG |
13352 | if (TREE_CODE (array_type) == POINTER_TYPE) |
13353 | array_type = TREE_TYPE (array_type); | |
13354 | ||
13355 | /* The array reference must be an array */ | |
13356 | if (!TYPE_ARRAY_P (array_type)) | |
13357 | { | |
13358 | parse_error_context | |
781b0558 KG |
13359 | (wfl_operator, |
13360 | "`[]' can only be applied to arrays. It can't be applied to `%s'", | |
13361 | lang_printable_name (array_type, 0)); | |
e04a16fb AG |
13362 | TREE_TYPE (node) = error_mark_node; |
13363 | error_found = 1; | |
13364 | } | |
13365 | ||
c2952b01 | 13366 | /* The array index undergoes unary numeric promotion. The promoted |
e04a16fb | 13367 | type must be int */ |
15fdcfe9 PB |
13368 | index = do_unary_numeric_promotion (index); |
13369 | if (TREE_TYPE (index) != int_type_node) | |
e04a16fb | 13370 | { |
1ebadc60 | 13371 | if (valid_cast_to_p (index_type, int_type_node)) |
781b0558 KG |
13372 | parse_error_context (wfl_operator, |
13373 | "Incompatible type for `[]'. Explicit cast needed to convert `%s' to `int'", | |
1ebadc60 KG |
13374 | lang_printable_name (index_type, 0)); |
13375 | else | |
781b0558 KG |
13376 | parse_error_context (wfl_operator, |
13377 | "Incompatible type for `[]'. Can't convert `%s' to `int'", | |
1ebadc60 | 13378 | lang_printable_name (index_type, 0)); |
e04a16fb AG |
13379 | TREE_TYPE (node) = error_mark_node; |
13380 | error_found = 1; | |
13381 | } | |
13382 | ||
e04a16fb AG |
13383 | if (error_found) |
13384 | return error_mark_node; | |
e04a16fb | 13385 | |
5e942c50 | 13386 | array_type = TYPE_ARRAY_ELEMENT (array_type); |
5e942c50 | 13387 | |
7f1d4866 | 13388 | if (flag_emit_class_files || flag_emit_xref) |
e04a16fb | 13389 | { |
15fdcfe9 PB |
13390 | TREE_OPERAND (node, 0) = array; |
13391 | TREE_OPERAND (node, 1) = index; | |
e04a16fb AG |
13392 | } |
13393 | else | |
939d7216 PB |
13394 | { |
13395 | /* The save_expr is for correct evaluation order. It would be cleaner | |
13396 | to use force_evaluation_order (see comment there), but that is | |
13397 | difficult when we also have to deal with bounds checking. */ | |
13398 | if (TREE_SIDE_EFFECTS (index)) | |
13399 | array = save_expr (array); | |
13400 | node = build_java_arrayaccess (array, array_type, index); | |
13401 | if (TREE_SIDE_EFFECTS (index)) | |
13402 | node = build (COMPOUND_EXPR, array_type, array, node); | |
13403 | } | |
e04a16fb AG |
13404 | TREE_TYPE (node) = array_type; |
13405 | return node; | |
13406 | } | |
13407 | ||
13408 | /* 15.9 Array Creation Expressions */ | |
13409 | ||
13410 | static tree | |
13411 | build_newarray_node (type, dims, extra_dims) | |
13412 | tree type; | |
13413 | tree dims; | |
13414 | int extra_dims; | |
13415 | { | |
13416 | tree node = | |
b67d701b | 13417 | build (NEW_ARRAY_EXPR, NULL_TREE, type, nreverse (dims), |
e04a16fb | 13418 | build_int_2 (extra_dims, 0)); |
e04a16fb AG |
13419 | return node; |
13420 | } | |
13421 | ||
13422 | static tree | |
13423 | patch_newarray (node) | |
13424 | tree node; | |
13425 | { | |
13426 | tree type = TREE_OPERAND (node, 0); | |
13427 | tree dims = TREE_OPERAND (node, 1); | |
13428 | tree cdim, array_type; | |
13429 | int error_found = 0; | |
13430 | int ndims = 0; | |
13431 | int xdims = TREE_INT_CST_LOW (TREE_OPERAND (node, 2)); | |
e04a16fb AG |
13432 | |
13433 | /* Dimension types are verified. It's better for the types to be | |
13434 | verified in order. */ | |
13435 | for (cdim = dims, ndims = 0; cdim; cdim = TREE_CHAIN (cdim), ndims++ ) | |
13436 | { | |
13437 | int dim_error = 0; | |
13438 | tree dim = TREE_VALUE (cdim); | |
13439 | ||
13440 | /* Dim might have been saved during its evaluation */ | |
13441 | dim = (TREE_CODE (dim) == SAVE_EXPR ? dim = TREE_OPERAND (dim, 0) : dim); | |
13442 | ||
13443 | /* The type of each specified dimension must be an integral type. */ | |
13444 | if (!JINTEGRAL_TYPE_P (TREE_TYPE (dim))) | |
13445 | dim_error = 1; | |
13446 | ||
13447 | /* Each expression undergoes an unary numeric promotion (5.6.1) and the | |
13448 | promoted type must be int. */ | |
13449 | else | |
13450 | { | |
15fdcfe9 | 13451 | dim = do_unary_numeric_promotion (dim); |
e04a16fb AG |
13452 | if (TREE_TYPE (dim) != int_type_node) |
13453 | dim_error = 1; | |
13454 | } | |
13455 | ||
13456 | /* Report errors on types here */ | |
13457 | if (dim_error) | |
13458 | { | |
13459 | parse_error_context | |
13460 | (TREE_PURPOSE (cdim), | |
781b0558 | 13461 | "Incompatible type for dimension in array creation expression. %s convert `%s' to `int'", |
b67d701b | 13462 | (valid_cast_to_p (TREE_TYPE (dim), int_type_node) ? |
e04a16fb | 13463 | "Explicit cast needed to" : "Can't"), |
0a2138e2 | 13464 | lang_printable_name (TREE_TYPE (dim), 0)); |
e04a16fb AG |
13465 | error_found = 1; |
13466 | } | |
13467 | ||
e04a16fb AG |
13468 | TREE_PURPOSE (cdim) = NULL_TREE; |
13469 | } | |
13470 | ||
13471 | /* Resolve array base type if unresolved */ | |
13472 | if (!(type = resolve_type_during_patch (type))) | |
13473 | error_found = 1; | |
13474 | ||
13475 | if (error_found) | |
13476 | { | |
13477 | /* We don't want further evaluation of this bogus array creation | |
13478 | operation */ | |
13479 | TREE_TYPE (node) = error_mark_node; | |
13480 | return error_mark_node; | |
13481 | } | |
13482 | ||
15fdcfe9 PB |
13483 | /* Set array_type to the actual (promoted) array type of the result. */ |
13484 | if (TREE_CODE (type) == RECORD_TYPE) | |
13485 | type = build_pointer_type (type); | |
13486 | while (--xdims >= 0) | |
13487 | { | |
13488 | type = promote_type (build_java_array_type (type, -1)); | |
13489 | } | |
13490 | dims = nreverse (dims); | |
13491 | array_type = type; | |
13492 | for (cdim = dims; cdim; cdim = TREE_CHAIN (cdim)) | |
13493 | { | |
13494 | type = array_type; | |
05bccae2 RK |
13495 | array_type |
13496 | = build_java_array_type (type, | |
13497 | TREE_CODE (cdim) == INTEGER_CST | |
13498 | ? (HOST_WIDE_INT) TREE_INT_CST_LOW (cdim) | |
13499 | : -1); | |
15fdcfe9 PB |
13500 | array_type = promote_type (array_type); |
13501 | } | |
13502 | dims = nreverse (dims); | |
13503 | ||
e04a16fb AG |
13504 | /* The node is transformed into a function call. Things are done |
13505 | differently according to the number of dimensions. If the number | |
13506 | of dimension is equal to 1, then the nature of the base type | |
13507 | (primitive or not) matters. */ | |
15fdcfe9 | 13508 | if (ndims == 1) |
fdec99c6 | 13509 | return build_new_array (type, TREE_VALUE (dims)); |
e04a16fb | 13510 | |
e04a16fb AG |
13511 | /* Can't reuse what's already written in expr.c because it uses the |
13512 | JVM stack representation. Provide a build_multianewarray. FIXME */ | |
15fdcfe9 | 13513 | return build (CALL_EXPR, array_type, |
e04a16fb | 13514 | build_address_of (soft_multianewarray_node), |
15fdcfe9 | 13515 | tree_cons (NULL_TREE, build_class_ref (TREE_TYPE (array_type)), |
e04a16fb | 13516 | tree_cons (NULL_TREE, |
15fdcfe9 | 13517 | build_int_2 (ndims, 0), dims )), |
e04a16fb AG |
13518 | NULL_TREE); |
13519 | } | |
13520 | ||
f8976021 APB |
13521 | /* 10.6 Array initializer. */ |
13522 | ||
13523 | /* Build a wfl for array element that don't have one, so we can | |
13524 | pin-point errors. */ | |
13525 | ||
13526 | static tree | |
13527 | maybe_build_array_element_wfl (node) | |
13528 | tree node; | |
13529 | { | |
13530 | if (TREE_CODE (node) != EXPR_WITH_FILE_LOCATION) | |
13531 | return build_expr_wfl (NULL_TREE, ctxp->filename, | |
13532 | ctxp->elc.line, ctxp->elc.prev_col); | |
13533 | else | |
13534 | return NULL_TREE; | |
13535 | } | |
13536 | ||
13537 | /* Build a NEW_ARRAY_INIT that features a CONSTRUCTOR node. This makes | |
13538 | identification of initialized arrays easier to detect during walk | |
13539 | and expansion. */ | |
13540 | ||
13541 | static tree | |
13542 | build_new_array_init (location, values) | |
13543 | int location; | |
13544 | tree values; | |
13545 | { | |
13546 | tree constructor = build (CONSTRUCTOR, NULL_TREE, NULL_TREE, values); | |
13547 | tree to_return = build1 (NEW_ARRAY_INIT, NULL_TREE, constructor); | |
5bba4807 | 13548 | EXPR_WFL_LINECOL (to_return) = location; |
f8976021 APB |
13549 | return to_return; |
13550 | } | |
13551 | ||
13552 | /* Expand a NEW_ARRAY_INIT node. Return error_mark_node if an error | |
13553 | occurred. Otherwise return NODE after having set its type | |
13554 | appropriately. */ | |
13555 | ||
13556 | static tree | |
13557 | patch_new_array_init (type, node) | |
13558 | tree type, node; | |
f8976021 APB |
13559 | { |
13560 | int error_seen = 0; | |
fdec99c6 | 13561 | tree current, element_type; |
f8976021 | 13562 | HOST_WIDE_INT length; |
fdec99c6 PB |
13563 | int all_constant = 1; |
13564 | tree init = TREE_OPERAND (node, 0); | |
f8976021 | 13565 | |
fdec99c6 PB |
13566 | if (TREE_CODE (type) != POINTER_TYPE || ! TYPE_ARRAY_P (TREE_TYPE (type))) |
13567 | { | |
13568 | parse_error_context (node, | |
13569 | "Invalid array initializer for non-array type `%s'", | |
13570 | lang_printable_name (type, 1)); | |
13571 | return error_mark_node; | |
13572 | } | |
13573 | type = TREE_TYPE (type); | |
13574 | element_type = TYPE_ARRAY_ELEMENT (type); | |
f8976021 | 13575 | |
fdec99c6 PB |
13576 | CONSTRUCTOR_ELTS (init) = nreverse (CONSTRUCTOR_ELTS (init)); |
13577 | ||
13578 | for (length = 0, current = CONSTRUCTOR_ELTS (init); | |
13579 | current; length++, current = TREE_CHAIN (current)) | |
f8976021 | 13580 | { |
fdec99c6 PB |
13581 | tree elt = TREE_VALUE (current); |
13582 | if (elt == NULL_TREE || TREE_CODE (elt) != NEW_ARRAY_INIT) | |
f8976021 | 13583 | { |
fdec99c6 | 13584 | error_seen |= array_constructor_check_entry (element_type, current); |
5bba4807 PB |
13585 | elt = TREE_VALUE (current); |
13586 | /* When compiling to native code, STRING_CST is converted to | |
13587 | INDIRECT_REF, but still with a TREE_CONSTANT flag. */ | |
13588 | if (! TREE_CONSTANT (elt) || TREE_CODE (elt) == INDIRECT_REF) | |
fdec99c6 | 13589 | all_constant = 0; |
f8976021 | 13590 | } |
fdec99c6 PB |
13591 | else |
13592 | { | |
13593 | TREE_VALUE (current) = patch_new_array_init (element_type, elt); | |
13594 | TREE_PURPOSE (current) = NULL_TREE; | |
13595 | all_constant = 0; | |
13596 | } | |
9a7ab4b3 APB |
13597 | if (elt && TREE_CODE (elt) == TREE_LIST |
13598 | && TREE_VALUE (elt) == error_mark_node) | |
fdec99c6 | 13599 | error_seen = 1; |
f8976021 APB |
13600 | } |
13601 | ||
13602 | if (error_seen) | |
13603 | return error_mark_node; | |
13604 | ||
13605 | /* Create a new type. We can't reuse the one we have here by | |
13606 | patching its dimension because it originally is of dimension -1 | |
13607 | hence reused by gcc. This would prevent triangular arrays. */ | |
fdec99c6 PB |
13608 | type = build_java_array_type (element_type, length); |
13609 | TREE_TYPE (init) = TREE_TYPE (TREE_CHAIN (TREE_CHAIN (TYPE_FIELDS (type)))); | |
13610 | TREE_TYPE (node) = promote_type (type); | |
13611 | TREE_CONSTANT (init) = all_constant; | |
bc3ca41b | 13612 | TREE_CONSTANT (node) = all_constant; |
f8976021 APB |
13613 | return node; |
13614 | } | |
13615 | ||
13616 | /* Verify that one entry of the initializer element list can be | |
13617 | assigned to the array base type. Report 1 if an error occurred, 0 | |
13618 | otherwise. */ | |
13619 | ||
13620 | static int | |
13621 | array_constructor_check_entry (type, entry) | |
13622 | tree type, entry; | |
13623 | { | |
13624 | char *array_type_string = NULL; /* For error reports */ | |
13625 | tree value, type_value, new_value, wfl_value, patched; | |
13626 | int error_seen = 0; | |
13627 | ||
13628 | new_value = NULL_TREE; | |
13629 | wfl_value = TREE_VALUE (entry); | |
13630 | ||
100f7cd8 | 13631 | push_obstacks (&permanent_obstack, &permanent_obstack); |
f8976021 | 13632 | value = java_complete_tree (TREE_VALUE (entry)); |
1179ebc2 | 13633 | /* patch_string return error_mark_node if arg is error_mark_node */ |
f8976021 APB |
13634 | if ((patched = patch_string (value))) |
13635 | value = patched; | |
1179ebc2 APB |
13636 | if (value == error_mark_node) |
13637 | return 1; | |
f8976021 | 13638 | |
f8976021 APB |
13639 | type_value = TREE_TYPE (value); |
13640 | ||
1179ebc2 | 13641 | /* At anytime, try_builtin_assignconv can report a warning on |
f8976021 APB |
13642 | constant overflow during narrowing. */ |
13643 | SET_WFL_OPERATOR (wfl_operator, TREE_PURPOSE (entry), wfl_value); | |
13644 | new_value = try_builtin_assignconv (wfl_operator, type, value); | |
13645 | if (!new_value && (new_value = try_reference_assignconv (type, value))) | |
13646 | type_value = promote_type (type); | |
100f7cd8 APB |
13647 | |
13648 | pop_obstacks (); | |
f8976021 APB |
13649 | /* Check and report errors */ |
13650 | if (!new_value) | |
13651 | { | |
49f48c71 | 13652 | const char *msg = (!valid_cast_to_p (type_value, type) ? |
f8976021 APB |
13653 | "Can't" : "Explicit cast needed to"); |
13654 | if (!array_type_string) | |
c2e3db92 | 13655 | array_type_string = xstrdup (lang_printable_name (type, 1)); |
f8976021 APB |
13656 | parse_error_context |
13657 | (wfl_operator, "Incompatible type for array. %s convert `%s' to `%s'", | |
13658 | msg, lang_printable_name (type_value, 1), array_type_string); | |
13659 | error_seen = 1; | |
13660 | } | |
13661 | ||
13662 | if (new_value) | |
13663 | { | |
b8c5b1c6 | 13664 | new_value = maybe_build_primttype_type_ref (new_value, wfl_value); |
f8976021 APB |
13665 | TREE_VALUE (entry) = new_value; |
13666 | } | |
13667 | ||
13668 | if (array_type_string) | |
13669 | free (array_type_string); | |
13670 | ||
13671 | TREE_PURPOSE (entry) = NULL_TREE; | |
13672 | return error_seen; | |
13673 | } | |
13674 | ||
e04a16fb AG |
13675 | static tree |
13676 | build_this (location) | |
13677 | int location; | |
13678 | { | |
9ee9b555 | 13679 | tree node = build_wfl_node (this_identifier_node); |
b67d701b | 13680 | TREE_SET_CODE (node, THIS_EXPR); |
e04a16fb AG |
13681 | EXPR_WFL_LINECOL (node) = location; |
13682 | return node; | |
13683 | } | |
13684 | ||
13685 | /* 14.15 The return statement. It builds a modify expression that | |
13686 | assigns the returned value to the RESULT_DECL that hold the value | |
13687 | to be returned. */ | |
13688 | ||
13689 | static tree | |
13690 | build_return (location, op) | |
13691 | int location; | |
13692 | tree op; | |
13693 | { | |
13694 | tree node = build1 (RETURN_EXPR, NULL_TREE, op); | |
13695 | EXPR_WFL_LINECOL (node) = location; | |
b67d701b | 13696 | node = build_debugable_stmt (location, node); |
e04a16fb AG |
13697 | return node; |
13698 | } | |
13699 | ||
13700 | static tree | |
13701 | patch_return (node) | |
13702 | tree node; | |
13703 | { | |
13704 | tree return_exp = TREE_OPERAND (node, 0); | |
13705 | tree meth = current_function_decl; | |
13706 | tree mtype = TREE_TYPE (TREE_TYPE (current_function_decl)); | |
e04a16fb AG |
13707 | int error_found = 0; |
13708 | ||
13709 | TREE_TYPE (node) = error_mark_node; | |
13710 | EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node); | |
13711 | ||
13712 | /* It's invalid to have a return value within a function that is | |
13713 | declared with the keyword void or that is a constructor */ | |
13714 | if (return_exp && (mtype == void_type_node || DECL_CONSTRUCTOR_P (meth))) | |
13715 | error_found = 1; | |
13716 | ||
f099f336 | 13717 | /* It's invalid to use a return statement in a static block */ |
c2952b01 | 13718 | if (DECL_CLINIT_P (current_function_decl)) |
f099f336 APB |
13719 | error_found = 1; |
13720 | ||
e04a16fb AG |
13721 | /* It's invalid to have a no return value within a function that |
13722 | isn't declared with the keyword `void' */ | |
13723 | if (!return_exp && (mtype != void_type_node && !DECL_CONSTRUCTOR_P (meth))) | |
13724 | error_found = 2; | |
c2952b01 APB |
13725 | |
13726 | if (in_instance_initializer) | |
13727 | error_found = 1; | |
e04a16fb AG |
13728 | |
13729 | if (error_found) | |
13730 | { | |
c2952b01 | 13731 | if (in_instance_initializer) |
f099f336 | 13732 | parse_error_context (wfl_operator, |
c2952b01 APB |
13733 | "`return' inside instance initializer"); |
13734 | ||
13735 | else if (DECL_CLINIT_P (current_function_decl)) | |
13736 | parse_error_context (wfl_operator, | |
13737 | "`return' inside static initializer"); | |
f099f336 APB |
13738 | |
13739 | else if (!DECL_CONSTRUCTOR_P (meth)) | |
22eed1e6 | 13740 | { |
c2e3db92 | 13741 | char *t = xstrdup (lang_printable_name (mtype, 0)); |
22eed1e6 APB |
13742 | parse_error_context (wfl_operator, |
13743 | "`return' with%s value from `%s %s'", | |
13744 | (error_found == 1 ? "" : "out"), | |
13745 | t, lang_printable_name (meth, 0)); | |
13746 | free (t); | |
13747 | } | |
13748 | else | |
13749 | parse_error_context (wfl_operator, | |
13750 | "`return' with value from constructor `%s'", | |
13751 | lang_printable_name (meth, 0)); | |
e04a16fb AG |
13752 | return error_mark_node; |
13753 | } | |
13754 | ||
5e942c50 APB |
13755 | /* If we have a return_exp, build a modify expression and expand |
13756 | it. Note: at that point, the assignment is declared valid, but we | |
13757 | may want to carry some more hacks */ | |
e04a16fb AG |
13758 | if (return_exp) |
13759 | { | |
5e942c50 APB |
13760 | tree exp = java_complete_tree (return_exp); |
13761 | tree modify, patched; | |
13762 | ||
13763 | /* If the function returned value and EXP are booleans, EXP has | |
13764 | to be converted into the type of DECL_RESULT, which is integer | |
13765 | (see complete_start_java_method) */ | |
13766 | if (TREE_TYPE (exp) == boolean_type_node && | |
13767 | TREE_TYPE (TREE_TYPE (meth)) == boolean_type_node) | |
13768 | exp = convert_to_integer (TREE_TYPE (DECL_RESULT (meth)), exp); | |
13769 | ||
13770 | /* `null' can be assigned to a function returning a reference */ | |
13771 | if (JREFERENCE_TYPE_P (TREE_TYPE (TREE_TYPE (meth))) && | |
13772 | exp == null_pointer_node) | |
13773 | exp = build_null_of_type (TREE_TYPE (TREE_TYPE (meth))); | |
13774 | ||
13775 | if ((patched = patch_string (exp))) | |
13776 | exp = patched; | |
13777 | ||
13778 | modify = build (MODIFY_EXPR, NULL_TREE, DECL_RESULT (meth), exp); | |
e04a16fb AG |
13779 | EXPR_WFL_LINECOL (modify) = EXPR_WFL_LINECOL (node); |
13780 | modify = java_complete_tree (modify); | |
5e942c50 | 13781 | |
e04a16fb AG |
13782 | if (modify != error_mark_node) |
13783 | { | |
13784 | TREE_SIDE_EFFECTS (modify) = 1; | |
13785 | TREE_OPERAND (node, 0) = modify; | |
13786 | } | |
13787 | else | |
13788 | return error_mark_node; | |
13789 | } | |
13790 | TREE_TYPE (node) = void_type_node; | |
13791 | TREE_SIDE_EFFECTS (node) = 1; | |
13792 | return node; | |
13793 | } | |
13794 | ||
13795 | /* 14.8 The if Statement */ | |
13796 | ||
13797 | static tree | |
13798 | build_if_else_statement (location, expression, if_body, else_body) | |
13799 | int location; | |
13800 | tree expression, if_body, else_body; | |
13801 | { | |
13802 | tree node; | |
e04a16fb | 13803 | if (!else_body) |
9bbc7d9f | 13804 | else_body = empty_stmt_node; |
e04a16fb AG |
13805 | node = build (COND_EXPR, NULL_TREE, expression, if_body, else_body); |
13806 | EXPR_WFL_LINECOL (node) = location; | |
b67d701b | 13807 | node = build_debugable_stmt (location, node); |
e04a16fb AG |
13808 | return node; |
13809 | } | |
13810 | ||
13811 | static tree | |
13812 | patch_if_else_statement (node) | |
13813 | tree node; | |
13814 | { | |
13815 | tree expression = TREE_OPERAND (node, 0); | |
13816 | ||
13817 | TREE_TYPE (node) = error_mark_node; | |
13818 | EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node); | |
13819 | ||
13820 | /* The type of expression must be boolean */ | |
b67d701b PB |
13821 | if (TREE_TYPE (expression) != boolean_type_node |
13822 | && TREE_TYPE (expression) != promoted_boolean_type_node) | |
e04a16fb AG |
13823 | { |
13824 | parse_error_context | |
13825 | (wfl_operator, | |
13826 | "Incompatible type for `if'. Can't convert `%s' to `boolean'", | |
0a2138e2 | 13827 | lang_printable_name (TREE_TYPE (expression), 0)); |
e04a16fb AG |
13828 | return error_mark_node; |
13829 | } | |
13830 | ||
13831 | TREE_TYPE (node) = void_type_node; | |
13832 | TREE_SIDE_EFFECTS (node) = 1; | |
15fdcfe9 | 13833 | CAN_COMPLETE_NORMALLY (node) |
9bbc7d9f PB |
13834 | = CAN_COMPLETE_NORMALLY (TREE_OPERAND (node, 1)) |
13835 | | CAN_COMPLETE_NORMALLY (TREE_OPERAND (node, 2)); | |
e04a16fb AG |
13836 | return node; |
13837 | } | |
13838 | ||
13839 | /* 14.6 Labeled Statements */ | |
13840 | ||
13841 | /* Action taken when a lableled statement is parsed. a new | |
13842 | LABELED_BLOCK_EXPR is created. No statement is attached to the | |
b635eb2f | 13843 | label, yet. LABEL can be NULL_TREE for artificially-generated blocks. */ |
e04a16fb AG |
13844 | |
13845 | static tree | |
0a2138e2 | 13846 | build_labeled_block (location, label) |
e04a16fb | 13847 | int location; |
0a2138e2 | 13848 | tree label; |
e04a16fb | 13849 | { |
b635eb2f | 13850 | tree label_name ; |
e04a16fb | 13851 | tree label_decl, node; |
b635eb2f PB |
13852 | if (label == NULL_TREE || label == continue_identifier_node) |
13853 | label_name = label; | |
13854 | else | |
e04a16fb | 13855 | { |
b635eb2f PB |
13856 | label_name = merge_qualified_name (label_id, label); |
13857 | /* Issue an error if we try to reuse a label that was previously | |
13858 | declared */ | |
13859 | if (IDENTIFIER_LOCAL_VALUE (label_name)) | |
13860 | { | |
13861 | EXPR_WFL_LINECOL (wfl_operator) = location; | |
781b0558 KG |
13862 | parse_error_context (wfl_operator, |
13863 | "Declaration of `%s' shadows a previous label declaration", | |
b635eb2f PB |
13864 | IDENTIFIER_POINTER (label)); |
13865 | EXPR_WFL_LINECOL (wfl_operator) = | |
13866 | EXPR_WFL_LINECOL (IDENTIFIER_LOCAL_VALUE (label_name)); | |
781b0558 KG |
13867 | parse_error_context (wfl_operator, |
13868 | "This is the location of the previous declaration of label `%s'", | |
b635eb2f PB |
13869 | IDENTIFIER_POINTER (label)); |
13870 | java_error_count--; | |
13871 | } | |
e04a16fb AG |
13872 | } |
13873 | ||
13874 | label_decl = create_label_decl (label_name); | |
13875 | node = build (LABELED_BLOCK_EXPR, NULL_TREE, label_decl, NULL_TREE); | |
13876 | EXPR_WFL_LINECOL (node) = location; | |
13877 | TREE_SIDE_EFFECTS (node) = 1; | |
13878 | return node; | |
13879 | } | |
13880 | ||
b67d701b | 13881 | /* A labeled statement LBE is attached a statement. */ |
e04a16fb AG |
13882 | |
13883 | static tree | |
b635eb2f | 13884 | finish_labeled_statement (lbe, statement) |
e04a16fb AG |
13885 | tree lbe; /* Labeled block expr */ |
13886 | tree statement; | |
13887 | { | |
13888 | /* In anyways, tie the loop to its statement */ | |
13889 | LABELED_BLOCK_BODY (lbe) = statement; | |
b635eb2f PB |
13890 | pop_labeled_block (); |
13891 | POP_LABELED_BLOCK (); | |
e04a16fb AG |
13892 | return lbe; |
13893 | } | |
13894 | ||
13895 | /* 14.10, 14.11, 14.12 Loop Statements */ | |
13896 | ||
13897 | /* Create an empty LOOP_EXPR and make it the last in the nested loop | |
13898 | list. */ | |
13899 | ||
13900 | static tree | |
13901 | build_new_loop (loop_body) | |
13902 | tree loop_body; | |
13903 | { | |
13904 | tree loop = build (LOOP_EXPR, NULL_TREE, loop_body); | |
13905 | TREE_SIDE_EFFECTS (loop) = 1; | |
13906 | PUSH_LOOP (loop); | |
13907 | return loop; | |
13908 | } | |
13909 | ||
13910 | /* Create a loop body according to the following structure: | |
13911 | COMPOUND_EXPR | |
13912 | COMPOUND_EXPR (loop main body) | |
13913 | EXIT_EXPR (this order is for while/for loops. | |
13914 | LABELED_BLOCK_EXPR the order is reversed for do loops) | |
34f4db93 | 13915 | LABEL_DECL (a continue occuring here branches at the |
e04a16fb AG |
13916 | BODY end of this labeled block) |
13917 | INCREMENT (if any) | |
13918 | ||
13919 | REVERSED, if non zero, tells that the loop condition expr comes | |
b67d701b PB |
13920 | after the body, like in the do-while loop. |
13921 | ||
13922 | To obtain a loop, the loop body structure described above is | |
13923 | encapsulated within a LOOP_EXPR surrounded by a LABELED_BLOCK_EXPR: | |
13924 | ||
13925 | LABELED_BLOCK_EXPR | |
13926 | LABEL_DECL (use this label to exit the loop) | |
13927 | LOOP_EXPR | |
13928 | <structure described above> */ | |
e04a16fb AG |
13929 | |
13930 | static tree | |
13931 | build_loop_body (location, condition, reversed) | |
13932 | int location; | |
13933 | tree condition; | |
13934 | int reversed; | |
13935 | { | |
0a2138e2 | 13936 | tree first, second, body; |
e04a16fb AG |
13937 | |
13938 | condition = build (EXIT_EXPR, NULL_TREE, condition); /* Force walk */ | |
13939 | EXPR_WFL_LINECOL (condition) = location; /* For accurate error report */ | |
13940 | condition = build_debugable_stmt (location, condition); | |
13941 | TREE_SIDE_EFFECTS (condition) = 1; | |
13942 | ||
b635eb2f | 13943 | body = build_labeled_block (0, continue_identifier_node); |
e04a16fb AG |
13944 | first = (reversed ? body : condition); |
13945 | second = (reversed ? condition : body); | |
13946 | return | |
13947 | build (COMPOUND_EXPR, NULL_TREE, | |
9bbc7d9f | 13948 | build (COMPOUND_EXPR, NULL_TREE, first, second), empty_stmt_node); |
e04a16fb AG |
13949 | } |
13950 | ||
13951 | /* Install CONDITION (if any) and loop BODY (using REVERSED to tell | |
13952 | their order) on the current loop. Unlink the current loop from the | |
13953 | loop list. */ | |
13954 | ||
13955 | static tree | |
b635eb2f | 13956 | finish_loop_body (location, condition, body, reversed) |
e04a16fb AG |
13957 | int location; |
13958 | tree condition, body; | |
13959 | int reversed; | |
13960 | { | |
13961 | tree to_return = ctxp->current_loop; | |
13962 | tree loop_body = LOOP_EXPR_BODY (to_return); | |
13963 | if (condition) | |
13964 | { | |
13965 | tree cnode = LOOP_EXPR_BODY_CONDITION_EXPR (loop_body, reversed); | |
13966 | /* We wrapped the EXIT_EXPR around a WFL so we can debug it. | |
13967 | The real EXIT_EXPR is one operand further. */ | |
13968 | EXPR_WFL_LINECOL (cnode) = location; | |
13969 | /* This one is for accurate error reports */ | |
13970 | EXPR_WFL_LINECOL (TREE_OPERAND (cnode, 0)) = location; | |
13971 | TREE_OPERAND (TREE_OPERAND (cnode, 0), 0) = condition; | |
13972 | } | |
13973 | LOOP_EXPR_BODY_BODY_EXPR (loop_body, reversed) = body; | |
13974 | POP_LOOP (); | |
13975 | return to_return; | |
13976 | } | |
13977 | ||
b635eb2f | 13978 | /* Tailored version of finish_loop_body for FOR loops, when FOR |
e04a16fb AG |
13979 | loops feature the condition part */ |
13980 | ||
13981 | static tree | |
b635eb2f | 13982 | finish_for_loop (location, condition, update, body) |
e04a16fb AG |
13983 | int location; |
13984 | tree condition, update, body; | |
13985 | { | |
13986 | /* Put the condition and the loop body in place */ | |
b635eb2f | 13987 | tree loop = finish_loop_body (location, condition, body, 0); |
e04a16fb AG |
13988 | /* LOOP is the current loop which has been now popped of the loop |
13989 | stack. Install the update block */ | |
13990 | LOOP_EXPR_BODY_UPDATE_BLOCK (LOOP_EXPR_BODY (loop)) = update; | |
13991 | return loop; | |
13992 | } | |
13993 | ||
5cbdba64 APB |
13994 | /* Try to find the loop a block might be related to. This comprises |
13995 | the case where the LOOP_EXPR is found as the second operand of a | |
13996 | COMPOUND_EXPR, because the loop happens to have an initialization | |
13997 | part, then expressed as the first operand of the COMPOUND_EXPR. If | |
13998 | the search finds something, 1 is returned. Otherwise, 0 is | |
13999 | returned. The search is assumed to start from a | |
14000 | LABELED_BLOCK_EXPR's block. */ | |
14001 | ||
14002 | static tree | |
14003 | search_loop (statement) | |
14004 | tree statement; | |
14005 | { | |
14006 | if (TREE_CODE (statement) == LOOP_EXPR) | |
14007 | return statement; | |
14008 | ||
14009 | if (TREE_CODE (statement) == BLOCK) | |
14010 | statement = BLOCK_SUBBLOCKS (statement); | |
14011 | else | |
14012 | return NULL_TREE; | |
14013 | ||
14014 | if (statement && TREE_CODE (statement) == COMPOUND_EXPR) | |
14015 | while (statement && TREE_CODE (statement) == COMPOUND_EXPR) | |
14016 | statement = TREE_OPERAND (statement, 1); | |
14017 | ||
14018 | return (TREE_CODE (statement) == LOOP_EXPR | |
c2952b01 | 14019 | && FOR_LOOP_P (statement) ? statement : NULL_TREE); |
5cbdba64 APB |
14020 | } |
14021 | ||
14022 | /* Return 1 if LOOP can be found in the labeled block BLOCK. 0 is | |
14023 | returned otherwise. */ | |
14024 | ||
14025 | static int | |
14026 | labeled_block_contains_loop_p (block, loop) | |
14027 | tree block, loop; | |
14028 | { | |
14029 | if (!block) | |
14030 | return 0; | |
14031 | ||
14032 | if (LABELED_BLOCK_BODY (block) == loop) | |
14033 | return 1; | |
14034 | ||
c2952b01 | 14035 | if (FOR_LOOP_P (loop) && search_loop (LABELED_BLOCK_BODY (block)) == loop) |
5cbdba64 APB |
14036 | return 1; |
14037 | ||
14038 | return 0; | |
14039 | } | |
14040 | ||
e04a16fb | 14041 | /* If the loop isn't surrounded by a labeled statement, create one and |
b635eb2f | 14042 | insert LOOP as its body. */ |
e04a16fb AG |
14043 | |
14044 | static tree | |
14045 | patch_loop_statement (loop) | |
14046 | tree loop; | |
14047 | { | |
cd9643f7 | 14048 | tree loop_label; |
5cbdba64 | 14049 | |
cd9643f7 | 14050 | TREE_TYPE (loop) = void_type_node; |
5cbdba64 APB |
14051 | if (labeled_block_contains_loop_p (ctxp->current_labeled_block, loop)) |
14052 | return loop; | |
14053 | ||
cd9643f7 | 14054 | loop_label = build_labeled_block (0, NULL_TREE); |
5cbdba64 APB |
14055 | /* LOOP is an EXPR node, so it should have a valid EXPR_WFL_LINECOL |
14056 | that LOOP_LABEL could enquire about, for a better accuracy. FIXME */ | |
cd9643f7 PB |
14057 | LABELED_BLOCK_BODY (loop_label) = loop; |
14058 | PUSH_LABELED_BLOCK (loop_label); | |
5cbdba64 | 14059 | return loop_label; |
e04a16fb AG |
14060 | } |
14061 | ||
14062 | /* 14.13, 14.14: break and continue Statements */ | |
14063 | ||
14064 | /* Build a break or a continue statement. a null NAME indicates an | |
14065 | unlabeled break/continue statement. */ | |
14066 | ||
14067 | static tree | |
14068 | build_bc_statement (location, is_break, name) | |
14069 | int location, is_break; | |
14070 | tree name; | |
14071 | { | |
14072 | tree break_continue, label_block_expr = NULL_TREE; | |
14073 | ||
14074 | if (name) | |
14075 | { | |
14076 | if (!(label_block_expr = IDENTIFIER_LOCAL_VALUE | |
14077 | (merge_qualified_name (label_id, EXPR_WFL_NODE (name))))) | |
14078 | /* Null means that we don't have a target for this named | |
14079 | break/continue. In this case, we make the target to be the | |
14080 | label name, so that the error can be reported accuratly in | |
14081 | patch_bc_statement. */ | |
14082 | label_block_expr = EXPR_WFL_NODE (name); | |
14083 | } | |
14084 | /* Unlabeled break/continue will be handled during the | |
14085 | break/continue patch operation */ | |
14086 | break_continue | |
14087 | = build (EXIT_BLOCK_EXPR, NULL_TREE, label_block_expr, NULL_TREE); | |
14088 | ||
14089 | IS_BREAK_STMT_P (break_continue) = is_break; | |
14090 | TREE_SIDE_EFFECTS (break_continue) = 1; | |
14091 | EXPR_WFL_LINECOL (break_continue) = location; | |
b67d701b | 14092 | break_continue = build_debugable_stmt (location, break_continue); |
e04a16fb AG |
14093 | return break_continue; |
14094 | } | |
14095 | ||
14096 | /* Verification of a break/continue statement. */ | |
14097 | ||
14098 | static tree | |
14099 | patch_bc_statement (node) | |
14100 | tree node; | |
14101 | { | |
14102 | tree bc_label = EXIT_BLOCK_LABELED_BLOCK (node), target_stmt; | |
b635eb2f | 14103 | tree labeled_block = ctxp->current_labeled_block; |
b67d701b | 14104 | EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node); |
e04a16fb | 14105 | |
e04a16fb | 14106 | /* Having an identifier here means that the target is unknown. */ |
b635eb2f | 14107 | if (bc_label != NULL_TREE && TREE_CODE (bc_label) == IDENTIFIER_NODE) |
e04a16fb AG |
14108 | { |
14109 | parse_error_context (wfl_operator, "No label definition found for `%s'", | |
14110 | IDENTIFIER_POINTER (bc_label)); | |
14111 | return error_mark_node; | |
14112 | } | |
b635eb2f | 14113 | if (! IS_BREAK_STMT_P (node)) |
e04a16fb | 14114 | { |
b635eb2f PB |
14115 | /* It's a continue statement. */ |
14116 | for (;; labeled_block = TREE_CHAIN (labeled_block)) | |
e04a16fb | 14117 | { |
b635eb2f PB |
14118 | if (labeled_block == NULL_TREE) |
14119 | { | |
14120 | if (bc_label == NULL_TREE) | |
14121 | parse_error_context (wfl_operator, | |
14122 | "`continue' must be in loop"); | |
14123 | else | |
1504b2b4 APB |
14124 | parse_error_context |
14125 | (wfl_operator, "continue label `%s' does not name a loop", | |
14126 | IDENTIFIER_POINTER (bc_label)); | |
b635eb2f PB |
14127 | return error_mark_node; |
14128 | } | |
14129 | if ((DECL_NAME (LABELED_BLOCK_LABEL (labeled_block)) | |
14130 | == continue_identifier_node) | |
14131 | && (bc_label == NULL_TREE | |
14132 | || TREE_CHAIN (labeled_block) == bc_label)) | |
14133 | { | |
14134 | bc_label = labeled_block; | |
14135 | break; | |
14136 | } | |
e04a16fb | 14137 | } |
e04a16fb | 14138 | } |
b635eb2f | 14139 | else if (!bc_label) |
34f4db93 | 14140 | { |
b635eb2f | 14141 | for (;; labeled_block = TREE_CHAIN (labeled_block)) |
e04a16fb | 14142 | { |
b635eb2f PB |
14143 | if (labeled_block == NULL_TREE) |
14144 | { | |
14145 | parse_error_context (wfl_operator, | |
14146 | "`break' must be in loop or switch"); | |
14147 | return error_mark_node; | |
14148 | } | |
14149 | target_stmt = LABELED_BLOCK_BODY (labeled_block); | |
14150 | if (TREE_CODE (target_stmt) == SWITCH_EXPR | |
5cbdba64 | 14151 | || search_loop (target_stmt)) |
b635eb2f PB |
14152 | { |
14153 | bc_label = labeled_block; | |
14154 | break; | |
14155 | } | |
e04a16fb | 14156 | } |
e04a16fb AG |
14157 | } |
14158 | ||
b635eb2f | 14159 | EXIT_BLOCK_LABELED_BLOCK (node) = bc_label; |
15fdcfe9 PB |
14160 | CAN_COMPLETE_NORMALLY (bc_label) = 1; |
14161 | ||
e04a16fb AG |
14162 | /* Our break/continue don't return values. */ |
14163 | TREE_TYPE (node) = void_type_node; | |
14164 | /* Encapsulate the break within a compound statement so that it's | |
5cbdba64 | 14165 | expanded all the times by expand_expr (and not clobbered |
e04a16fb AG |
14166 | sometimes, like after a if statement) */ |
14167 | node = add_stmt_to_compound (NULL_TREE, void_type_node, node); | |
14168 | TREE_SIDE_EFFECTS (node) = 1; | |
14169 | return node; | |
14170 | } | |
14171 | ||
14172 | /* Process the exit expression belonging to a loop. Its type must be | |
14173 | boolean. */ | |
14174 | ||
14175 | static tree | |
14176 | patch_exit_expr (node) | |
14177 | tree node; | |
14178 | { | |
14179 | tree expression = TREE_OPERAND (node, 0); | |
14180 | TREE_TYPE (node) = error_mark_node; | |
14181 | EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node); | |
14182 | ||
14183 | /* The type of expression must be boolean */ | |
14184 | if (TREE_TYPE (expression) != boolean_type_node) | |
14185 | { | |
14186 | parse_error_context | |
14187 | (wfl_operator, | |
781b0558 | 14188 | "Incompatible type for loop conditional. Can't convert `%s' to `boolean'", |
0a2138e2 | 14189 | lang_printable_name (TREE_TYPE (expression), 0)); |
e04a16fb AG |
14190 | return error_mark_node; |
14191 | } | |
14192 | /* Now we know things are allright, invert the condition, fold and | |
14193 | return */ | |
14194 | TREE_OPERAND (node, 0) = | |
14195 | fold (build1 (TRUTH_NOT_EXPR, boolean_type_node, expression)); | |
15fdcfe9 PB |
14196 | |
14197 | if (! integer_zerop (TREE_OPERAND (node, 0)) | |
14198 | && ctxp->current_loop != NULL_TREE | |
14199 | && TREE_CODE (ctxp->current_loop) == LOOP_EXPR) | |
14200 | CAN_COMPLETE_NORMALLY (ctxp->current_loop) = 1; | |
14201 | if (! integer_onep (TREE_OPERAND (node, 0))) | |
14202 | CAN_COMPLETE_NORMALLY (node) = 1; | |
14203 | ||
14204 | ||
e04a16fb AG |
14205 | TREE_TYPE (node) = void_type_node; |
14206 | return node; | |
14207 | } | |
b67d701b PB |
14208 | |
14209 | /* 14.9 Switch statement */ | |
14210 | ||
14211 | static tree | |
14212 | patch_switch_statement (node) | |
14213 | tree node; | |
14214 | { | |
c877974e | 14215 | tree se = TREE_OPERAND (node, 0), se_type; |
b67d701b PB |
14216 | |
14217 | /* Complete the switch expression */ | |
14218 | se = TREE_OPERAND (node, 0) = java_complete_tree (se); | |
14219 | se_type = TREE_TYPE (se); | |
14220 | /* The type of the switch expression must be char, byte, short or | |
14221 | int */ | |
14222 | if (!JINTEGRAL_TYPE_P (se_type)) | |
14223 | { | |
14224 | EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (node); | |
781b0558 KG |
14225 | parse_error_context (wfl_operator, |
14226 | "Incompatible type for `switch'. Can't convert `%s' to `int'", | |
0a2138e2 | 14227 | lang_printable_name (se_type, 0)); |
b67d701b PB |
14228 | /* This is what java_complete_tree will check */ |
14229 | TREE_OPERAND (node, 0) = error_mark_node; | |
14230 | return error_mark_node; | |
14231 | } | |
14232 | ||
15fdcfe9 | 14233 | TREE_OPERAND (node, 1) = java_complete_tree (TREE_OPERAND (node, 1)); |
b67d701b PB |
14234 | |
14235 | /* Ready to return */ | |
15fdcfe9 | 14236 | if (TREE_CODE (TREE_OPERAND (node, 1)) == ERROR_MARK) |
b67d701b PB |
14237 | { |
14238 | TREE_TYPE (node) = error_mark_node; | |
14239 | return error_mark_node; | |
14240 | } | |
14241 | TREE_TYPE (node) = void_type_node; | |
14242 | TREE_SIDE_EFFECTS (node) = 1; | |
15fdcfe9 | 14243 | CAN_COMPLETE_NORMALLY (node) |
c877974e APB |
14244 | = CAN_COMPLETE_NORMALLY (TREE_OPERAND (node, 1)) |
14245 | || ! SWITCH_HAS_DEFAULT (node); | |
b67d701b PB |
14246 | return node; |
14247 | } | |
14248 | ||
165f37bc | 14249 | /* 14.18 The try/catch statements */ |
b67d701b | 14250 | |
b67d701b | 14251 | static tree |
a7d8d81f | 14252 | build_try_statement (location, try_block, catches) |
b67d701b | 14253 | int location; |
a7d8d81f PB |
14254 | tree try_block, catches; |
14255 | { | |
14256 | tree node = build (TRY_EXPR, NULL_TREE, try_block, catches); | |
b67d701b | 14257 | EXPR_WFL_LINECOL (node) = location; |
a7d8d81f | 14258 | return node; |
b67d701b PB |
14259 | } |
14260 | ||
a7d8d81f PB |
14261 | static tree |
14262 | build_try_finally_statement (location, try_block, finally) | |
14263 | int location; | |
14264 | tree try_block, finally; | |
b67d701b | 14265 | { |
a7d8d81f PB |
14266 | tree node = build (TRY_FINALLY_EXPR, NULL_TREE, try_block, finally); |
14267 | EXPR_WFL_LINECOL (node) = location; | |
14268 | return node; | |
b67d701b PB |
14269 | } |
14270 | ||
14271 | static tree | |
14272 | patch_try_statement (node) | |
14273 | tree node; | |
14274 | { | |
14275 | int error_found = 0; | |
14276 | tree try = TREE_OPERAND (node, 0); | |
14277 | /* Exception handlers are considered in left to right order */ | |
14278 | tree catch = nreverse (TREE_OPERAND (node, 1)); | |
b9f7e36c | 14279 | tree current, caught_type_list = NULL_TREE; |
b67d701b PB |
14280 | |
14281 | /* Check catch clauses, if any. Every time we find an error, we try | |
b9f7e36c APB |
14282 | to process the next catch clause. We process the catch clause before |
14283 | the try block so that when processing the try block we can check thrown | |
14284 | exceptions againts the caught type list. */ | |
b67d701b PB |
14285 | for (current = catch; current; current = TREE_CHAIN (current)) |
14286 | { | |
14287 | tree carg_decl, carg_type; | |
14288 | tree sub_current, catch_block, catch_clause; | |
14289 | int unreachable; | |
14290 | ||
b67d701b | 14291 | /* At this point, the structure of the catch clause is |
b67d701b PB |
14292 | CATCH_EXPR (catch node) |
14293 | BLOCK (with the decl of the parameter) | |
14294 | COMPOUND_EXPR | |
7525cc04 | 14295 | MODIFY_EXPR (assignment of the catch parameter) |
b67d701b | 14296 | BLOCK (catch clause block) |
a7d8d81f PB |
14297 | */ |
14298 | catch_clause = TREE_OPERAND (current, 0); | |
b67d701b PB |
14299 | carg_decl = BLOCK_EXPR_DECLS (catch_clause); |
14300 | carg_type = TREE_TYPE (TREE_TYPE (carg_decl)); | |
14301 | ||
14302 | /* Catch clauses can't have more than one parameter declared, | |
14303 | but it's already enforced by the grammar. Make sure that the | |
14304 | only parameter of the clause statement in of class Throwable | |
14305 | or a subclass of Throwable, but that was done earlier. The | |
14306 | catch clause parameter type has also been resolved. */ | |
14307 | ||
14308 | /* Just make sure that the catch clause parameter type inherits | |
14309 | from java.lang.Throwable */ | |
14310 | if (!inherits_from_p (carg_type, throwable_type_node)) | |
14311 | { | |
14312 | EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (current); | |
14313 | parse_error_context (wfl_operator, | |
781b0558 | 14314 | "Can't catch class `%s'. Catch clause parameter type must be a subclass of class `java.lang.Throwable'", |
0a2138e2 | 14315 | lang_printable_name (carg_type, 0)); |
b67d701b PB |
14316 | error_found = 1; |
14317 | continue; | |
14318 | } | |
14319 | ||
14320 | /* Partial check for unreachable catch statement: The catch | |
14321 | clause is reachable iff is no earlier catch block A in | |
14322 | the try statement such that the type of the catch | |
14323 | clause's parameter is the same as or a subclass of the | |
14324 | type of A's parameter */ | |
14325 | unreachable = 0; | |
14326 | for (sub_current = catch; | |
14327 | sub_current != current; sub_current = TREE_CHAIN (sub_current)) | |
14328 | { | |
14329 | tree sub_catch_clause, decl; | |
a7d8d81f | 14330 | sub_catch_clause = TREE_OPERAND (sub_current, 0); |
b67d701b PB |
14331 | decl = BLOCK_EXPR_DECLS (sub_catch_clause); |
14332 | ||
14333 | if (inherits_from_p (carg_type, TREE_TYPE (TREE_TYPE (decl)))) | |
14334 | { | |
14335 | EXPR_WFL_LINECOL (wfl_operator) = EXPR_WFL_LINECOL (current); | |
14336 | parse_error_context | |
781b0558 KG |
14337 | (wfl_operator, |
14338 | "`catch' not reached because of the catch clause at line %d", | |
14339 | EXPR_WFL_LINENO (sub_current)); | |
b67d701b PB |
14340 | unreachable = error_found = 1; |
14341 | break; | |
14342 | } | |
14343 | } | |
b67d701b PB |
14344 | /* Complete the catch clause block */ |
14345 | catch_block = java_complete_tree (TREE_OPERAND (current, 0)); | |
14346 | if (catch_block == error_mark_node) | |
14347 | { | |
14348 | error_found = 1; | |
14349 | continue; | |
14350 | } | |
15fdcfe9 PB |
14351 | if (CAN_COMPLETE_NORMALLY (catch_block)) |
14352 | CAN_COMPLETE_NORMALLY (node) = 1; | |
b67d701b | 14353 | TREE_OPERAND (current, 0) = catch_block; |
15fdcfe9 PB |
14354 | |
14355 | if (unreachable) | |
14356 | continue; | |
14357 | ||
14358 | /* Things to do here: the exception must be thrown */ | |
14359 | ||
14360 | /* Link this type to the caught type list */ | |
14361 | caught_type_list = tree_cons (NULL_TREE, carg_type, caught_type_list); | |
b67d701b PB |
14362 | } |
14363 | ||
b9f7e36c APB |
14364 | PUSH_EXCEPTIONS (caught_type_list); |
14365 | if ((try = java_complete_tree (try)) == error_mark_node) | |
14366 | error_found = 1; | |
15fdcfe9 PB |
14367 | if (CAN_COMPLETE_NORMALLY (try)) |
14368 | CAN_COMPLETE_NORMALLY (node) = 1; | |
b9f7e36c APB |
14369 | POP_EXCEPTIONS (); |
14370 | ||
b67d701b PB |
14371 | /* Verification ends here */ |
14372 | if (error_found) | |
14373 | return error_mark_node; | |
14374 | ||
14375 | TREE_OPERAND (node, 0) = try; | |
14376 | TREE_OPERAND (node, 1) = catch; | |
b67d701b PB |
14377 | TREE_TYPE (node) = void_type_node; |
14378 | return node; | |
14379 | } | |
b9f7e36c APB |
14380 | |
14381 | /* 14.17 The synchronized Statement */ | |
14382 | ||
14383 | static tree | |
14384 | patch_synchronized_statement (node, wfl_op1) | |
14385 | tree node, wfl_op1; | |
14386 | { | |
5a005d9e | 14387 | tree expr = java_complete_tree (TREE_OPERAND (node, 0)); |
b9f7e36c | 14388 | tree block = TREE_OPERAND (node, 1); |
5a005d9e | 14389 | |
d8fccff5 | 14390 | tree enter, exit, expr_decl, assignment; |
5a005d9e PB |
14391 | |
14392 | if (expr == error_mark_node) | |
14393 | { | |
14394 | block = java_complete_tree (block); | |
14395 | return expr; | |
14396 | } | |
b9f7e36c APB |
14397 | |
14398 | /* The TYPE of expr must be a reference type */ | |
5a005d9e | 14399 | if (!JREFERENCE_TYPE_P (TREE_TYPE (expr))) |
b9f7e36c APB |
14400 | { |
14401 | SET_WFL_OPERATOR (wfl_operator, node, wfl_op1); | |
781b0558 | 14402 | parse_error_context (wfl_operator, "Incompatible type for `synchronized'. Can't convert `%s' to `java.lang.Object'", |
0a2138e2 | 14403 | lang_printable_name (TREE_TYPE (expr), 0)); |
b9f7e36c APB |
14404 | return error_mark_node; |
14405 | } | |
14406 | ||
ce6e9147 APB |
14407 | if (flag_emit_xref) |
14408 | { | |
14409 | TREE_OPERAND (node, 0) = expr; | |
14410 | TREE_OPERAND (node, 1) = java_complete_tree (block); | |
14411 | CAN_COMPLETE_NORMALLY (node) = 1; | |
14412 | return node; | |
14413 | } | |
14414 | ||
b9f7e36c APB |
14415 | /* Generate a try-finally for the synchronized statement, except |
14416 | that the handler that catches all throw exception calls | |
14417 | _Jv_MonitorExit and then rethrow the exception. | |
14418 | The synchronized statement is then implemented as: | |
14419 | TRY | |
14420 | { | |
14421 | _Jv_MonitorEnter (expression) | |
14422 | synchronized_block | |
14423 | _Jv_MonitorExit (expression) | |
14424 | } | |
14425 | CATCH_ALL | |
14426 | { | |
14427 | e = _Jv_exception_info (); | |
14428 | _Jv_MonitorExit (expression) | |
14429 | Throw (e); | |
14430 | } */ | |
14431 | ||
5a005d9e PB |
14432 | expr_decl = build_decl (VAR_DECL, generate_name (), TREE_TYPE (expr)); |
14433 | BUILD_MONITOR_ENTER (enter, expr_decl); | |
14434 | BUILD_MONITOR_EXIT (exit, expr_decl); | |
14435 | CAN_COMPLETE_NORMALLY (enter) = 1; | |
14436 | CAN_COMPLETE_NORMALLY (exit) = 1; | |
96847892 AH |
14437 | assignment = build (MODIFY_EXPR, NULL_TREE, expr_decl, expr); |
14438 | TREE_SIDE_EFFECTS (assignment) = 1; | |
5a005d9e PB |
14439 | node = build1 (CLEANUP_POINT_EXPR, NULL_TREE, |
14440 | build (COMPOUND_EXPR, NULL_TREE, | |
14441 | build (WITH_CLEANUP_EXPR, NULL_TREE, | |
14442 | build (COMPOUND_EXPR, NULL_TREE, | |
96847892 | 14443 | assignment, enter), |
5a005d9e PB |
14444 | NULL_TREE, exit), |
14445 | block)); | |
14446 | node = build_expr_block (node, expr_decl); | |
14447 | ||
14448 | return java_complete_tree (node); | |
b9f7e36c APB |
14449 | } |
14450 | ||
14451 | /* 14.16 The throw Statement */ | |
14452 | ||
14453 | static tree | |
14454 | patch_throw_statement (node, wfl_op1) | |
14455 | tree node, wfl_op1; | |
14456 | { | |
14457 | tree expr = TREE_OPERAND (node, 0); | |
14458 | tree type = TREE_TYPE (expr); | |
14459 | int unchecked_ok = 0, tryblock_throws_ok = 0; | |
14460 | ||
14461 | /* Thrown expression must be assignable to java.lang.Throwable */ | |
14462 | if (!try_reference_assignconv (throwable_type_node, expr)) | |
14463 | { | |
14464 | SET_WFL_OPERATOR (wfl_operator, node, wfl_op1); | |
781b0558 KG |
14465 | parse_error_context (wfl_operator, |
14466 | "Can't throw `%s'; it must be a subclass of class `java.lang.Throwable'", | |
0a2138e2 | 14467 | lang_printable_name (type, 0)); |
b9f7e36c APB |
14468 | /* If the thrown expression was a reference, we further the |
14469 | compile-time check. */ | |
14470 | if (!JREFERENCE_TYPE_P (type)) | |
14471 | return error_mark_node; | |
14472 | } | |
14473 | ||
14474 | /* At least one of the following must be true */ | |
14475 | ||
14476 | /* The type of the throw expression is a not checked exception, | |
14477 | i.e. is a unchecked expression. */ | |
c877974e | 14478 | unchecked_ok = IS_UNCHECKED_EXCEPTION_P (TREE_TYPE (type)); |
b9f7e36c | 14479 | |
c2952b01 APB |
14480 | SET_WFL_OPERATOR (wfl_operator, node, wfl_op1); |
14481 | /* An instance can't throw a checked excetion unless that exception | |
14482 | is explicitely declared in the `throws' clause of each | |
14483 | constructor. This doesn't apply to anonymous classes, since they | |
14484 | don't have declared constructors. */ | |
14485 | if (!unchecked_ok | |
14486 | && in_instance_initializer && !ANONYMOUS_CLASS_P (current_class)) | |
14487 | { | |
14488 | tree current; | |
14489 | for (current = TYPE_METHODS (current_class); current; | |
14490 | current = TREE_CHAIN (current)) | |
14491 | if (DECL_CONSTRUCTOR_P (current) | |
14492 | && !check_thrown_exceptions_do (TREE_TYPE (expr))) | |
14493 | { | |
14494 | parse_error_context (wfl_operator, "Checked exception `%s' can't be thrown in instance initializer (not all declared constructor are declaring it in their `throws' clause)", | |
14495 | lang_printable_name (TREE_TYPE (expr), 0)); | |
14496 | return error_mark_node; | |
14497 | } | |
14498 | } | |
14499 | ||
b9f7e36c APB |
14500 | /* Throw is contained in a try statement and at least one catch |
14501 | clause can receive the thrown expression or the current method is | |
14502 | declared to throw such an exception. Or, the throw statement is | |
14503 | contained in a method or constructor declaration and the type of | |
14504 | the Expression is assignable to at least one type listed in the | |
14505 | throws clause the declaration. */ | |
b9f7e36c | 14506 | if (!unchecked_ok) |
f099f336 | 14507 | tryblock_throws_ok = check_thrown_exceptions_do (TREE_TYPE (expr)); |
b9f7e36c APB |
14508 | if (!(unchecked_ok || tryblock_throws_ok)) |
14509 | { | |
14510 | /* If there is a surrounding try block that has no matching | |
14511 | clatch clause, report it first. A surrounding try block exits | |
14512 | only if there is something after the list of checked | |
14513 | exception thrown by the current function (if any). */ | |
14514 | if (IN_TRY_BLOCK_P ()) | |
781b0558 | 14515 | parse_error_context (wfl_operator, "Checked exception `%s' can't be caught by any of the catch clause(s) of the surrounding `try' block", |
0a2138e2 | 14516 | lang_printable_name (type, 0)); |
b9f7e36c APB |
14517 | /* If we have no surrounding try statement and the method doesn't have |
14518 | any throws, report it now. FIXME */ | |
f099f336 APB |
14519 | |
14520 | /* We report that the exception can't be throw from a try block | |
14521 | in all circumstances but when the `throw' is inside a static | |
14522 | block. */ | |
b9f7e36c APB |
14523 | else if (!EXCEPTIONS_P (currently_caught_type_list) |
14524 | && !tryblock_throws_ok) | |
f099f336 | 14525 | { |
c2952b01 | 14526 | if (DECL_CLINIT_P (current_function_decl)) |
781b0558 KG |
14527 | parse_error_context (wfl_operator, |
14528 | "Checked exception `%s' can't be thrown in initializer", | |
f099f336 APB |
14529 | lang_printable_name (type, 0)); |
14530 | else | |
781b0558 KG |
14531 | parse_error_context (wfl_operator, |
14532 | "Checked exception `%s' isn't thrown from a `try' block", | |
f099f336 APB |
14533 | lang_printable_name (type, 0)); |
14534 | } | |
b9f7e36c APB |
14535 | /* Otherwise, the current method doesn't have the appropriate |
14536 | throws declaration */ | |
14537 | else | |
781b0558 | 14538 | parse_error_context (wfl_operator, "Checked exception `%s' doesn't match any of current method's `throws' declaration(s)", |
0a2138e2 | 14539 | lang_printable_name (type, 0)); |
b9f7e36c APB |
14540 | return error_mark_node; |
14541 | } | |
14542 | ||
ce6e9147 | 14543 | if (! flag_emit_class_files && ! flag_emit_xref) |
15fdcfe9 | 14544 | BUILD_THROW (node, expr); |
ce6e9147 APB |
14545 | |
14546 | /* If doing xrefs, keep the location where the `throw' was seen. */ | |
14547 | if (flag_emit_xref) | |
14548 | EXPR_WFL_LINECOL (node) = EXPR_WFL_LINECOL (wfl_op1); | |
b9f7e36c APB |
14549 | return node; |
14550 | } | |
14551 | ||
14552 | /* Check that exception said to be thrown by method DECL can be | |
14553 | effectively caught from where DECL is invoked. */ | |
14554 | ||
14555 | static void | |
14556 | check_thrown_exceptions (location, decl) | |
14557 | int location; | |
14558 | tree decl; | |
14559 | { | |
14560 | tree throws; | |
14561 | /* For all the unchecked exceptions thrown by DECL */ | |
14562 | for (throws = DECL_FUNCTION_THROWS (decl); throws; | |
14563 | throws = TREE_CHAIN (throws)) | |
0a2138e2 | 14564 | if (!check_thrown_exceptions_do (TREE_VALUE (throws))) |
b9f7e36c | 14565 | { |
3e78f871 PB |
14566 | #if 1 |
14567 | /* Temporary hack to suppresses errors about cloning arrays. FIXME */ | |
14568 | if (DECL_NAME (decl) == get_identifier ("clone")) | |
14569 | continue; | |
14570 | #endif | |
b9f7e36c | 14571 | EXPR_WFL_LINECOL (wfl_operator) = location; |
c2952b01 | 14572 | if (DECL_FINIT_P (current_function_decl)) |
7705e9db APB |
14573 | parse_error_context |
14574 | (wfl_operator, "Exception `%s' can't be thrown in initializer", | |
14575 | lang_printable_name (TREE_VALUE (throws), 0)); | |
14576 | else | |
14577 | { | |
14578 | parse_error_context | |
781b0558 | 14579 | (wfl_operator, "Exception `%s' must be caught, or it must be declared in the `throws' clause of `%s'", |
7705e9db | 14580 | lang_printable_name (TREE_VALUE (throws), 0), |
c2952b01 | 14581 | (DECL_INIT_P (current_function_decl) ? |
7705e9db APB |
14582 | IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (current_class))) : |
14583 | IDENTIFIER_POINTER (DECL_NAME (current_function_decl)))); | |
14584 | } | |
b9f7e36c APB |
14585 | } |
14586 | } | |
14587 | ||
c877974e | 14588 | /* Return 1 if checked EXCEPTION is caught at the current nesting level of |
b9f7e36c APB |
14589 | try-catch blocks, OR is listed in the `throws' clause of the |
14590 | current method. */ | |
14591 | ||
14592 | static int | |
0a2138e2 | 14593 | check_thrown_exceptions_do (exception) |
b9f7e36c APB |
14594 | tree exception; |
14595 | { | |
14596 | tree list = currently_caught_type_list; | |
c877974e | 14597 | resolve_and_layout (exception, NULL_TREE); |
b9f7e36c APB |
14598 | /* First, all the nested try-catch-finally at that stage. The |
14599 | last element contains `throws' clause exceptions, if any. */ | |
c877974e APB |
14600 | if (IS_UNCHECKED_EXCEPTION_P (exception)) |
14601 | return 1; | |
b9f7e36c APB |
14602 | while (list) |
14603 | { | |
14604 | tree caught; | |
14605 | for (caught = TREE_VALUE (list); caught; caught = TREE_CHAIN (caught)) | |
14606 | if (valid_ref_assignconv_cast_p (exception, TREE_VALUE (caught), 0)) | |
14607 | return 1; | |
14608 | list = TREE_CHAIN (list); | |
14609 | } | |
14610 | return 0; | |
14611 | } | |
14612 | ||
14613 | static void | |
14614 | purge_unchecked_exceptions (mdecl) | |
14615 | tree mdecl; | |
14616 | { | |
14617 | tree throws = DECL_FUNCTION_THROWS (mdecl); | |
14618 | tree new = NULL_TREE; | |
14619 | ||
14620 | while (throws) | |
14621 | { | |
14622 | tree next = TREE_CHAIN (throws); | |
c877974e | 14623 | if (!IS_UNCHECKED_EXCEPTION_P (TREE_VALUE (throws))) |
b9f7e36c APB |
14624 | { |
14625 | TREE_CHAIN (throws) = new; | |
14626 | new = throws; | |
14627 | } | |
14628 | throws = next; | |
14629 | } | |
14630 | /* List is inverted here, but it doesn't matter */ | |
14631 | DECL_FUNCTION_THROWS (mdecl) = new; | |
14632 | } | |
22eed1e6 APB |
14633 | |
14634 | /* 15.24 Conditional Operator ?: */ | |
14635 | ||
14636 | static tree | |
14637 | patch_conditional_expr (node, wfl_cond, wfl_op1) | |
14638 | tree node, wfl_cond, wfl_op1; | |
14639 | { | |
14640 | tree cond = TREE_OPERAND (node, 0); | |
14641 | tree op1 = TREE_OPERAND (node, 1); | |
14642 | tree op2 = TREE_OPERAND (node, 2); | |
22eed1e6 | 14643 | tree resulting_type = NULL_TREE; |
ac825856 | 14644 | tree t1, t2, patched; |
22eed1e6 APB |
14645 | int error_found = 0; |
14646 | ||
ac825856 APB |
14647 | /* Operands of ?: might be StringBuffers crafted as a result of a |
14648 | string concatenation. Obtain a descent operand here. */ | |
14649 | if ((patched = patch_string (op1))) | |
14650 | TREE_OPERAND (node, 1) = op1 = patched; | |
14651 | if ((patched = patch_string (op2))) | |
14652 | TREE_OPERAND (node, 2) = op2 = patched; | |
14653 | ||
14654 | t1 = TREE_TYPE (op1); | |
14655 | t2 = TREE_TYPE (op2); | |
14656 | ||
22eed1e6 APB |
14657 | /* The first expression must be a boolean */ |
14658 | if (TREE_TYPE (cond) != boolean_type_node) | |
14659 | { | |
14660 | SET_WFL_OPERATOR (wfl_operator, node, wfl_cond); | |
781b0558 KG |
14661 | parse_error_context (wfl_operator, |
14662 | "Incompatible type for `?:'. Can't convert `%s' to `boolean'", | |
22eed1e6 APB |
14663 | lang_printable_name (TREE_TYPE (cond), 0)); |
14664 | error_found = 1; | |
14665 | } | |
14666 | ||
14667 | /* Second and third can be numeric, boolean (i.e. primitive), | |
14668 | references or null. Anything else results in an error */ | |
14669 | if (!((JNUMERIC_TYPE_P (t1) && JNUMERIC_TYPE_P (t2)) | |
14670 | || ((JREFERENCE_TYPE_P (t1) || op1 == null_pointer_node) | |
14671 | && (JREFERENCE_TYPE_P (t2) || op2 == null_pointer_node)) | |
14672 | || (t1 == boolean_type_node && t2 == boolean_type_node))) | |
14673 | error_found = 1; | |
14674 | ||
14675 | /* Determine the type of the conditional expression. Same types are | |
14676 | easy to deal with */ | |
14677 | else if (t1 == t2) | |
14678 | resulting_type = t1; | |
14679 | ||
14680 | /* There are different rules for numeric types */ | |
14681 | else if (JNUMERIC_TYPE_P (t1)) | |
14682 | { | |
14683 | /* if byte/short found, the resulting type is short */ | |
14684 | if ((t1 == byte_type_node && t2 == short_type_node) | |
14685 | || (t1 == short_type_node && t2 == byte_type_node)) | |
14686 | resulting_type = short_type_node; | |
14687 | ||
14688 | /* If t1 is a constant int and t2 is of type byte, short or char | |
14689 | and t1's value fits in t2, then the resulting type is t2 */ | |
14690 | else if ((t1 == int_type_node && TREE_CONSTANT (TREE_OPERAND (node, 1))) | |
14691 | && JBSC_TYPE_P (t2) && int_fits_type_p (TREE_OPERAND (node, 1), t2)) | |
14692 | resulting_type = t2; | |
14693 | ||
14694 | /* If t2 is a constant int and t1 is of type byte, short or char | |
14695 | and t2's value fits in t1, then the resulting type is t1 */ | |
14696 | else if ((t2 == int_type_node && TREE_CONSTANT (TREE_OPERAND (node, 2))) | |
14697 | && JBSC_TYPE_P (t1) && int_fits_type_p (TREE_OPERAND (node, 2), t1)) | |
14698 | resulting_type = t1; | |
14699 | ||
14700 | /* Otherwise, binary numeric promotion is applied and the | |
14701 | resulting type is the promoted type of operand 1 and 2 */ | |
14702 | else | |
93024893 | 14703 | resulting_type = binary_numeric_promotion (t1, t2, |
22eed1e6 APB |
14704 | &TREE_OPERAND (node, 1), |
14705 | &TREE_OPERAND (node, 2)); | |
14706 | } | |
14707 | ||
14708 | /* Cases of a reference and a null type */ | |
14709 | else if (JREFERENCE_TYPE_P (t1) && op2 == null_pointer_node) | |
14710 | resulting_type = t1; | |
14711 | ||
14712 | else if (JREFERENCE_TYPE_P (t2) && op1 == null_pointer_node) | |
14713 | resulting_type = t2; | |
14714 | ||
14715 | /* Last case: different reference types. If a type can be converted | |
14716 | into the other one by assignment conversion, the latter | |
14717 | determines the type of the expression */ | |
14718 | else if ((resulting_type = try_reference_assignconv (t1, op2))) | |
14719 | resulting_type = promote_type (t1); | |
14720 | ||
14721 | else if ((resulting_type = try_reference_assignconv (t2, op1))) | |
14722 | resulting_type = promote_type (t2); | |
14723 | ||
14724 | /* If we don't have any resulting type, we're in trouble */ | |
14725 | if (!resulting_type) | |
14726 | { | |
c2e3db92 | 14727 | char *t = xstrdup (lang_printable_name (t1, 0)); |
22eed1e6 | 14728 | SET_WFL_OPERATOR (wfl_operator, node, wfl_op1); |
781b0558 KG |
14729 | parse_error_context (wfl_operator, |
14730 | "Incompatible type for `?:'. Can't convert `%s' to `%s'", | |
14731 | t, lang_printable_name (t2, 0)); | |
22eed1e6 APB |
14732 | free (t); |
14733 | error_found = 1; | |
14734 | } | |
14735 | ||
14736 | if (error_found) | |
14737 | { | |
14738 | TREE_TYPE (node) = error_mark_node; | |
14739 | return error_mark_node; | |
14740 | } | |
14741 | ||
14742 | TREE_TYPE (node) = resulting_type; | |
14743 | TREE_SET_CODE (node, COND_EXPR); | |
15fdcfe9 | 14744 | CAN_COMPLETE_NORMALLY (node) = 1; |
22eed1e6 APB |
14745 | return node; |
14746 | } | |
ac825856 | 14747 | |
5b09b33e PB |
14748 | /* Try to constant fold NODE. |
14749 | If NODE is not a constant expression, return NULL_EXPR. | |
14750 | CONTEXT is a static final VAR_DECL whose initializer we are folding. */ | |
14751 | ||
14752 | static tree | |
14753 | fold_constant_for_init (node, context) | |
14754 | tree node; | |
14755 | tree context; | |
14756 | { | |
14757 | tree op0, op1, val; | |
14758 | enum tree_code code = TREE_CODE (node); | |
14759 | ||
93024893 | 14760 | if (code == STRING_CST) |
5b09b33e | 14761 | return node; |
93024893 APB |
14762 | |
14763 | if (code == INTEGER_CST || code == REAL_CST) | |
14764 | return convert (TREE_TYPE (context), node); | |
5b09b33e PB |
14765 | |
14766 | switch (code) | |
14767 | { | |
5b09b33e PB |
14768 | case PLUS_EXPR: |
14769 | case MINUS_EXPR: | |
bc3ca41b PB |
14770 | case MULT_EXPR: |
14771 | case TRUNC_MOD_EXPR: | |
14772 | case RDIV_EXPR: | |
5b09b33e PB |
14773 | case LSHIFT_EXPR: |
14774 | case RSHIFT_EXPR: | |
14775 | case URSHIFT_EXPR: | |
14776 | case BIT_AND_EXPR: | |
14777 | case BIT_XOR_EXPR: | |
14778 | case BIT_IOR_EXPR: | |
5b09b33e PB |
14779 | case TRUTH_ANDIF_EXPR: |
14780 | case TRUTH_ORIF_EXPR: | |
14781 | case EQ_EXPR: | |
14782 | case NE_EXPR: | |
14783 | case GT_EXPR: | |
14784 | case GE_EXPR: | |
14785 | case LT_EXPR: | |
14786 | case LE_EXPR: | |
14787 | op0 = TREE_OPERAND (node, 0); | |
14788 | op1 = TREE_OPERAND (node, 1); | |
14789 | val = fold_constant_for_init (op0, context); | |
14790 | if (val == NULL_TREE || ! TREE_CONSTANT (val)) | |
14791 | return NULL_TREE; | |
14792 | TREE_OPERAND (node, 0) = val; | |
14793 | val = fold_constant_for_init (op1, context); | |
14794 | if (val == NULL_TREE || ! TREE_CONSTANT (val)) | |
14795 | return NULL_TREE; | |
14796 | TREE_OPERAND (node, 1) = val; | |
14797 | return patch_binop (node, op0, op1); | |
14798 | ||
14799 | case UNARY_PLUS_EXPR: | |
14800 | case NEGATE_EXPR: | |
14801 | case TRUTH_NOT_EXPR: | |
14802 | case BIT_NOT_EXPR: | |
14803 | case CONVERT_EXPR: | |
14804 | op0 = TREE_OPERAND (node, 0); | |
14805 | val = fold_constant_for_init (op0, context); | |
14806 | if (val == NULL_TREE || ! TREE_CONSTANT (val)) | |
14807 | return NULL_TREE; | |
14808 | TREE_OPERAND (node, 0) = val; | |
5a005d9e | 14809 | return patch_unaryop (node, op0); |
5b09b33e PB |
14810 | break; |
14811 | ||
14812 | case COND_EXPR: | |
14813 | val = fold_constant_for_init (TREE_OPERAND (node, 0), context); | |
14814 | if (val == NULL_TREE || ! TREE_CONSTANT (val)) | |
14815 | return NULL_TREE; | |
14816 | TREE_OPERAND (node, 0) = val; | |
14817 | val = fold_constant_for_init (TREE_OPERAND (node, 1), context); | |
14818 | if (val == NULL_TREE || ! TREE_CONSTANT (val)) | |
14819 | return NULL_TREE; | |
14820 | TREE_OPERAND (node, 1) = val; | |
14821 | val = fold_constant_for_init (TREE_OPERAND (node, 2), context); | |
14822 | if (val == NULL_TREE || ! TREE_CONSTANT (val)) | |
14823 | return NULL_TREE; | |
14824 | TREE_OPERAND (node, 2) = val; | |
14825 | return integer_zerop (TREE_OPERAND (node, 0)) ? TREE_OPERAND (node, 1) | |
14826 | : TREE_OPERAND (node, 2); | |
14827 | ||
14828 | case VAR_DECL: | |
8576f094 APB |
14829 | case FIELD_DECL: |
14830 | if (! FIELD_FINAL (node) | |
5b09b33e PB |
14831 | || DECL_INITIAL (node) == NULL_TREE) |
14832 | return NULL_TREE; | |
14833 | val = DECL_INITIAL (node); | |
14834 | /* Guard against infinite recursion. */ | |
14835 | DECL_INITIAL (node) = NULL_TREE; | |
cd9643f7 | 14836 | val = fold_constant_for_init (val, node); |
5b09b33e PB |
14837 | DECL_INITIAL (node) = val; |
14838 | return val; | |
14839 | ||
14840 | case EXPR_WITH_FILE_LOCATION: | |
14841 | /* Compare java_complete_tree and resolve_expression_name. */ | |
14842 | if (!EXPR_WFL_NODE (node) /* Or a PRIMARY flag ? */ | |
14843 | || TREE_CODE (EXPR_WFL_NODE (node)) == IDENTIFIER_NODE) | |
14844 | { | |
14845 | tree name = EXPR_WFL_NODE (node); | |
14846 | tree decl; | |
14847 | if (PRIMARY_P (node)) | |
14848 | return NULL_TREE; | |
14849 | else if (! QUALIFIED_P (name)) | |
14850 | { | |
14851 | decl = lookup_field_wrapper (DECL_CONTEXT (context), name); | |
8576f094 APB |
14852 | if (decl == NULL_TREE |
14853 | || (! FIELD_STATIC (decl) && ! FIELD_FINAL (decl))) | |
5b09b33e PB |
14854 | return NULL_TREE; |
14855 | return fold_constant_for_init (decl, decl); | |
14856 | } | |
14857 | else | |
14858 | { | |
5b09b33e PB |
14859 | /* Wait until the USE_COMPONENT_REF re-write. FIXME. */ |
14860 | qualify_ambiguous_name (node); | |
14861 | if (resolve_field_access (node, &decl, NULL) | |
14862 | && decl != NULL_TREE) | |
14863 | return fold_constant_for_init (decl, decl); | |
5b09b33e PB |
14864 | return NULL_TREE; |
14865 | } | |
14866 | } | |
14867 | else | |
14868 | { | |
14869 | op0 = TREE_OPERAND (node, 0); | |
14870 | val = fold_constant_for_init (op0, context); | |
14871 | if (val == NULL_TREE || ! TREE_CONSTANT (val)) | |
14872 | return NULL_TREE; | |
14873 | TREE_OPERAND (node, 0) = val; | |
14874 | return val; | |
14875 | } | |
14876 | ||
bc3ca41b PB |
14877 | #ifdef USE_COMPONENT_REF |
14878 | case IDENTIFIER: | |
14879 | case COMPONENT_REF: | |
14880 | ?; | |
14881 | #endif | |
14882 | ||
5b09b33e PB |
14883 | default: |
14884 | return NULL_TREE; | |
14885 | } | |
14886 | } | |
bc3ca41b PB |
14887 | |
14888 | #ifdef USE_COMPONENT_REF | |
14889 | /* Context is 'T' for TypeName, 'P' for PackageName, | |
14890 | 'M' for MethodName, 'E' for ExpressionName, and 'A' for AmbiguousName. */ | |
14891 | ||
14892 | tree | |
14893 | resolve_simple_name (name, context) | |
14894 | tree name; | |
14895 | int context; | |
14896 | { | |
14897 | } | |
14898 | ||
14899 | tree | |
14900 | resolve_qualified_name (name, context) | |
14901 | tree name; | |
14902 | int context; | |
14903 | { | |
14904 | } | |
14905 | #endif |