]>
Commit | Line | Data |
---|---|---|
8d08fdba | 1 | /* Process declarations and variables for C compiler. |
ad236eab | 2 | Copyright (C) 1988, 92-98, 1999 Free Software Foundation, Inc. |
8d08fdba MS |
3 | Hacked by Michael Tiemann (tiemann@cygnus.com) |
4 | ||
5 | This file is part of GNU CC. | |
6 | ||
7 | GNU CC is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU CC is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU CC; see the file COPYING. If not, write to | |
e9fa0c7c RK |
19 | the Free Software Foundation, 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
8d08fdba MS |
21 | |
22 | ||
23 | /* Process declarations and symbol lookup for C front end. | |
24 | Also constructs types; the standard scalar types at initialization, | |
25 | and structure, union, array and enum types when they are declared. */ | |
26 | ||
27 | /* ??? not all decl nodes are given the most useful possible | |
28 | line numbers. For example, the CONST_DECLs for enum values. */ | |
29 | ||
30 | #include "config.h" | |
8d052bc7 | 31 | #include "system.h" |
8d08fdba MS |
32 | #include "tree.h" |
33 | #include "rtl.h" | |
34 | #include "flags.h" | |
35 | #include "cp-tree.h" | |
36 | #include "decl.h" | |
37 | #include "lex.h" | |
e8abc66f | 38 | #include "output.h" |
49c249e1 | 39 | #include "except.h" |
9f617717 | 40 | #include "expr.h" |
eb773359 | 41 | #include "defaults.h" |
54f92bfb | 42 | #include "toplev.h" |
bcb80729 KG |
43 | #include "dwarf2out.h" |
44 | #include "dwarfout.h" | |
0aafb128 MM |
45 | #include "splay-tree.h" |
46 | #include "varray.h" | |
49c249e1 | 47 | |
297441fd DB |
48 | #if USE_CPPLIB |
49 | #include "cpplib.h" | |
50 | extern cpp_reader parse_in; | |
297441fd DB |
51 | #endif |
52 | ||
0aafb128 MM |
53 | /* This structure contains information about the initializations |
54 | and/or destructions required for a particular priority level. */ | |
55 | typedef struct priority_info_s { | |
56 | /* A label indicating where we should generate the next | |
57 | initialization with this priority. */ | |
58 | rtx initialization_sequence; | |
59 | /* A label indicating where we should generate the next destruction | |
60 | with this priority. */ | |
61 | rtx destruction_sequence; | |
0352cfc8 MM |
62 | /* Non-zero if there have been any initializations at this priority |
63 | throughout the translation unit. */ | |
64 | int initializations_p; | |
65 | /* Non-zero if there have been any destructions at this priority | |
66 | throughout the translation unit. */ | |
67 | int destructions_p; | |
0aafb128 MM |
68 | } *priority_info; |
69 | ||
49c249e1 JM |
70 | static tree get_sentry PROTO((tree)); |
71 | static void mark_vtable_entries PROTO((tree)); | |
6b5fbb55 | 72 | static void grok_function_init PROTO((tree, tree)); |
0aafb128 MM |
73 | static int finish_vtable_vardecl PROTO((tree *, void *)); |
74 | static int prune_vtable_vardecl PROTO((tree *, void *)); | |
75 | static int finish_sigtable_vardecl PROTO((tree *, void *)); | |
69ac77ce | 76 | static int is_namespace_ancestor PROTO((tree, tree)); |
69ac77ce | 77 | static void add_using_namespace PROTO((tree, tree, int)); |
52c11ef6 | 78 | static tree ambiguous_decl PROTO((tree, tree, tree,int)); |
cb96daa2 | 79 | static tree build_anon_union_vars PROTO((tree, tree*, int, int)); |
d8e178a0 KG |
80 | static int acceptable_java_type PROTO((tree)); |
81 | static void output_vtable_inherit PROTO((tree)); | |
d8e178a0 KG |
82 | static void start_objects PROTO((int, int)); |
83 | static void finish_objects PROTO((int, int)); | |
d8e178a0 KG |
84 | static tree merge_functions PROTO((tree, tree)); |
85 | static tree decl_namespace PROTO((tree)); | |
86 | static tree validate_nonmember_using_decl PROTO((tree, tree *, tree *)); | |
87 | static void do_nonmember_using_decl PROTO((tree, tree, tree, tree, | |
88 | tree *, tree *)); | |
0aafb128 MM |
89 | static void start_static_storage_duration_function PROTO((void)); |
90 | static int generate_inits_for_priority PROTO((splay_tree_node, void *)); | |
91 | static void finish_static_storage_duration_function PROTO((void)); | |
92 | static priority_info get_priority_info PROTO((int)); | |
93 | static void do_static_initialization PROTO((tree, tree, tree, int)); | |
94 | static void do_static_destruction PROTO((tree, tree, int)); | |
95 | static void do_static_initialization_and_destruction PROTO((tree, tree)); | |
96 | static void generate_ctor_or_dtor_function PROTO((int, int)); | |
97 | static int generate_ctor_and_dtor_functions_for_priority | |
98 | PROTO((splay_tree_node, void *)); | |
cffa8729 | 99 | extern int current_class_depth; |
8d08fdba MS |
100 | |
101 | /* A list of virtual function tables we must make sure to write out. */ | |
102 | tree pending_vtables; | |
103 | ||
104 | /* A list of static class variables. This is needed, because a | |
105 | static class variable can be declared inside the class without | |
106 | an initializer, and then initialized, staticly, outside the class. */ | |
0aafb128 MM |
107 | static varray_type pending_statics; |
108 | static size_t pending_statics_used; | |
8d08fdba | 109 | |
8926095f | 110 | /* A list of functions which were declared inline, but which we |
e92cc029 | 111 | may need to emit outline anyway. */ |
0aafb128 MM |
112 | static varray_type saved_inlines; |
113 | static size_t saved_inlines_used; | |
8d08fdba MS |
114 | |
115 | /* Used to help generate temporary names which are unique within | |
116 | a function. Reset to 0 by start_function. */ | |
117 | ||
7215f9a0 | 118 | int temp_name_counter; |
8d08fdba MS |
119 | |
120 | /* Same, but not reset. Local temp variables and global temp variables | |
121 | can have the same name. */ | |
122 | static int global_temp_name_counter; | |
123 | ||
51c184be | 124 | /* Flag used when debugging spew.c */ |
8d08fdba MS |
125 | |
126 | extern int spew_debug; | |
e1cd6e56 | 127 | |
5566b478 MS |
128 | /* Nonzero if we're done parsing and into end-of-file activities. */ |
129 | ||
130 | int at_eof; | |
131 | ||
e1cd6e56 MS |
132 | /* Functions called along with real static constructors and destructors. */ |
133 | ||
134 | tree static_ctors, static_dtors; | |
30394414 | 135 | |
2c73f9f5 | 136 | /* The current open namespace, and ::. */ |
30394414 JM |
137 | |
138 | tree current_namespace; | |
139 | tree global_namespace; | |
140 | ||
2c73f9f5 ML |
141 | /* The stack for namespaces of current declarations. */ |
142 | ||
143 | static tree decl_namespace_list; | |
144 | ||
8d08fdba MS |
145 | \f |
146 | /* C (and C++) language-specific option variables. */ | |
147 | ||
148 | /* Nonzero means allow type mismatches in conditional expressions; | |
149 | just make their values `void'. */ | |
150 | ||
151 | int flag_cond_mismatch; | |
152 | ||
153 | /* Nonzero means give `double' the same size as `float'. */ | |
154 | ||
155 | int flag_short_double; | |
156 | ||
157 | /* Nonzero means don't recognize the keyword `asm'. */ | |
158 | ||
159 | int flag_no_asm; | |
160 | ||
e1cd6e56 MS |
161 | /* Nonzero means don't recognize any extension keywords. */ |
162 | ||
163 | int flag_no_gnu_keywords; | |
164 | ||
8d08fdba MS |
165 | /* Nonzero means don't recognize the non-ANSI builtin functions. */ |
166 | ||
167 | int flag_no_builtin; | |
168 | ||
00595019 MS |
169 | /* Nonzero means don't recognize the non-ANSI builtin functions. |
170 | -ansi sets this. */ | |
171 | ||
172 | int flag_no_nonansi_builtin; | |
173 | ||
d22c8596 MS |
174 | /* Nonzero means do some things the same way PCC does. Only provided so |
175 | the compiler will link. */ | |
8d08fdba MS |
176 | |
177 | int flag_traditional; | |
178 | ||
179 | /* Nonzero means to treat bitfields as unsigned unless they say `signed'. */ | |
180 | ||
181 | int flag_signed_bitfields = 1; | |
182 | ||
e1cd6e56 MS |
183 | /* Nonzero means enable obscure ANSI features and disable GNU extensions |
184 | that might cause ANSI-compliant code to be miscompiled. */ | |
8d08fdba | 185 | |
e1cd6e56 | 186 | int flag_ansi; |
8d08fdba | 187 | |
8d08fdba MS |
188 | /* Nonzero means do emit exported implementations of functions even if |
189 | they can be inlined. */ | |
190 | ||
191 | int flag_implement_inlines = 1; | |
192 | ||
193 | /* Nonzero means do emit exported implementations of templates, instead of | |
e92cc029 | 194 | multiple static copies in each file that needs a definition. */ |
8d08fdba | 195 | |
e1cd6e56 | 196 | int flag_external_templates; |
8d08fdba MS |
197 | |
198 | /* Nonzero means that the decision to emit or not emit the implementation of a | |
199 | template depends on where the template is instantiated, rather than where | |
200 | it is defined. */ | |
201 | ||
e1cd6e56 | 202 | int flag_alt_external_templates; |
8d08fdba | 203 | |
a0a33927 MS |
204 | /* Nonzero means that implicit instantiations will be emitted if needed. */ |
205 | ||
206 | int flag_implicit_templates = 1; | |
207 | ||
5eea678f JM |
208 | /* Nonzero means that implicit instantiations of inline templates will be |
209 | emitted if needed, even if instantiations of non-inline templates | |
210 | aren't. */ | |
211 | ||
212 | int flag_implicit_inline_templates = 1; | |
213 | ||
8d08fdba MS |
214 | /* Nonzero means warn about implicit declarations. */ |
215 | ||
216 | int warn_implicit = 1; | |
217 | ||
795add94 VM |
218 | /* Nonzero means warn about usage of long long when `-pedantic'. */ |
219 | ||
220 | int warn_long_long = 1; | |
221 | ||
8d08fdba MS |
222 | /* Nonzero means warn when all ctors or dtors are private, and the class |
223 | has no friends. */ | |
224 | ||
225 | int warn_ctor_dtor_privacy = 1; | |
226 | ||
a80e4195 | 227 | /* True if we want to implement vtables using "thunks". |
6467930b | 228 | The default is off. */ |
8926095f | 229 | |
da20811c JM |
230 | #ifndef DEFAULT_VTABLE_THUNKS |
231 | #define DEFAULT_VTABLE_THUNKS 0 | |
c73964b2 | 232 | #endif |
da20811c | 233 | int flag_vtable_thunks = DEFAULT_VTABLE_THUNKS; |
51c184be | 234 | |
faae18ab MS |
235 | /* True if we want to deal with repository information. */ |
236 | ||
237 | int flag_use_repository; | |
238 | ||
dc8263bc JM |
239 | /* Nonzero if we want to issue diagnostics that the standard says are not |
240 | required. */ | |
241 | ||
242 | int flag_optional_diags = 1; | |
243 | ||
d9cf7c82 JM |
244 | /* Nonzero means give string constants the type `const char *', as mandated |
245 | by the standard. */ | |
246 | ||
247 | int flag_const_strings = 1; | |
248 | ||
f71f87f9 MM |
249 | /* If non-NULL, dump the tree structure for the entire translation |
250 | unit to this file. */ | |
251 | ||
252 | char *flag_dump_translation_unit = 0; | |
253 | ||
d9cf7c82 JM |
254 | /* Nonzero means warn about deprecated conversion from string constant to |
255 | `char *'. */ | |
8d08fdba MS |
256 | |
257 | int warn_write_strings; | |
258 | ||
259 | /* Nonzero means warn about pointer casts that can drop a type qualifier | |
260 | from the pointer target type. */ | |
261 | ||
262 | int warn_cast_qual; | |
263 | ||
8d08fdba MS |
264 | /* Nonzero means warn about sizeof(function) or addition/subtraction |
265 | of function pointers. */ | |
266 | ||
be99da77 | 267 | int warn_pointer_arith = 1; |
8d08fdba | 268 | |
8d08fdba MS |
269 | /* Nonzero means warn for any function def without prototype decl. */ |
270 | ||
271 | int warn_missing_prototypes; | |
272 | ||
273 | /* Nonzero means warn about multiple (redundant) decls for the same single | |
274 | variable or function. */ | |
275 | ||
276 | int warn_redundant_decls; | |
277 | ||
278 | /* Warn if initializer is not completely bracketed. */ | |
279 | ||
280 | int warn_missing_braces; | |
281 | ||
2ee887f2 MS |
282 | /* Warn about comparison of signed and unsigned values. */ |
283 | ||
284 | int warn_sign_compare; | |
285 | ||
e92cc029 | 286 | /* Warn about *printf or *scanf format/argument anomalies. */ |
8d08fdba MS |
287 | |
288 | int warn_format; | |
289 | ||
290 | /* Warn about a subscript that has type char. */ | |
291 | ||
292 | int warn_char_subscripts; | |
293 | ||
294 | /* Warn if a type conversion is done that might have confusing results. */ | |
295 | ||
296 | int warn_conversion; | |
297 | ||
298 | /* Warn if adding () is suggested. */ | |
299 | ||
e1cd6e56 | 300 | int warn_parentheses; |
8d08fdba MS |
301 | |
302 | /* Non-zero means warn in function declared in derived class has the | |
303 | same name as a virtual in the base class, but fails to match the | |
304 | type signature of any virtual function in the base class. */ | |
305 | int warn_overloaded_virtual; | |
306 | ||
307 | /* Non-zero means warn when declaring a class that has a non virtual | |
e92cc029 | 308 | destructor, when it really ought to have a virtual one. */ |
9a0e77ba | 309 | int warn_nonvdtor; |
8d08fdba MS |
310 | |
311 | /* Non-zero means warn when a function is declared extern and later inline. */ | |
312 | int warn_extern_inline; | |
313 | ||
f376e137 MS |
314 | /* Non-zero means warn when the compiler will reorder code. */ |
315 | int warn_reorder; | |
316 | ||
ddd5a7c1 | 317 | /* Non-zero means warn when synthesis behavior differs from Cfront's. */ |
f376e137 MS |
318 | int warn_synth; |
319 | ||
9a3b49ac MS |
320 | /* Non-zero means warn when we convert a pointer to member function |
321 | into a pointer to (void or function). */ | |
322 | int warn_pmf2ptr = 1; | |
323 | ||
eb448459 MS |
324 | /* Nonzero means warn about violation of some Effective C++ style rules. */ |
325 | ||
da20811c JM |
326 | int warn_ecpp; |
327 | ||
328 | /* Nonzero means warn where overload resolution chooses a promotion from | |
329 | unsigned to signed over a conversion to an unsigned of the same size. */ | |
330 | ||
331 | int warn_sign_promo; | |
eb448459 | 332 | |
0c4b14c4 JM |
333 | /* Nonzero means warn when an old-style cast is used. */ |
334 | ||
335 | int warn_old_style_cast; | |
336 | ||
f9fc59e8 NC |
337 | /* Warn about #pragma directives that are not recognised. */ |
338 | ||
dc8263bc JM |
339 | int warn_unknown_pragmas; /* Tri state variable. */ |
340 | ||
341 | /* Nonzero means warn about use of multicharacter literals. */ | |
342 | ||
343 | int warn_multichar = 1; | |
f9fc59e8 | 344 | |
7f84cec9 BK |
345 | /* Nonzero means warn when non-templatized friend functions are |
346 | declared within a template */ | |
347 | ||
348 | int warn_nontemplate_friend = 1; | |
349 | ||
2de45c06 ML |
350 | /* Nonzero means complain about deprecated features. */ |
351 | ||
352 | int warn_deprecated = 1; | |
353 | ||
4f6140be | 354 | /* Nonzero means `$' can be in an identifier. */ |
8d08fdba MS |
355 | |
356 | #ifndef DOLLARS_IN_IDENTIFIERS | |
357 | #define DOLLARS_IN_IDENTIFIERS 1 | |
358 | #endif | |
359 | int dollars_in_ident = DOLLARS_IN_IDENTIFIERS; | |
360 | ||
a3203465 | 361 | /* Nonzero for -fno-strict-prototype switch: do not consider empty |
8d08fdba MS |
362 | argument prototype to mean function takes no arguments. */ |
363 | ||
e1cd6e56 | 364 | int flag_strict_prototype = 2; |
8d08fdba MS |
365 | int strict_prototype = 1; |
366 | int strict_prototypes_lang_c, strict_prototypes_lang_cplusplus = 1; | |
367 | ||
368 | /* Nonzero means that labels can be used as first-class objects */ | |
369 | ||
370 | int flag_labels_ok; | |
371 | ||
372 | /* Non-zero means to collect statistics which might be expensive | |
373 | and to print them when we are done. */ | |
374 | int flag_detailed_statistics; | |
375 | ||
376 | /* C++ specific flags. */ | |
8d08fdba MS |
377 | /* Zero means that `this' is a *const. This gives nice behavior in the |
378 | 2.0 world. 1 gives 1.2-compatible behavior. 2 gives Spring behavior. | |
379 | -2 means we're constructing an object and it has fixed type. */ | |
380 | ||
381 | int flag_this_is_variable; | |
382 | ||
56ae6d77 | 383 | /* Nonzero means we should attempt to elide constructors when possible. */ |
8d08fdba | 384 | |
56ae6d77 | 385 | int flag_elide_constructors = 1; |
8d08fdba | 386 | |
8d08fdba MS |
387 | /* Nonzero means recognize and handle signature language constructs. */ |
388 | ||
389 | int flag_handle_signatures; | |
390 | ||
391 | /* Nonzero means that member functions defined in class scope are | |
392 | inline by default. */ | |
393 | ||
394 | int flag_default_inline = 1; | |
395 | ||
db5ae43f | 396 | /* Controls whether compiler generates 'type descriptor' that give |
8d08fdba | 397 | run-time type information. */ |
6b5fbb55 | 398 | int flag_rtti = 1; |
8d08fdba MS |
399 | |
400 | /* Nonzero if we wish to output cross-referencing information | |
401 | for the GNU class browser. */ | |
402 | extern int flag_gnu_xref; | |
403 | ||
8d08fdba | 404 | /* Nonzero if we want to support huge (> 2^(sizeof(short)*8-1) bytes) |
e92cc029 | 405 | objects. */ |
e1cd6e56 | 406 | |
8d08fdba MS |
407 | int flag_huge_objects; |
408 | ||
409 | /* Nonzero if we want to conserve space in the .o files. We do this | |
410 | by putting uninitialized data and runtime initialized data into | |
ddd5a7c1 | 411 | .common instead of .data at the expense of not flagging multiple |
8d08fdba | 412 | definitions. */ |
e1cd6e56 | 413 | |
8d08fdba MS |
414 | int flag_conserve_space; |
415 | ||
eae89e04 | 416 | /* Nonzero if we want to obey access control semantics. */ |
e1cd6e56 | 417 | |
eae89e04 JM |
418 | int flag_access_control = 1; |
419 | ||
e1cd6e56 MS |
420 | /* Nonzero if we want to understand the operator names, i.e. 'bitand'. */ |
421 | ||
422 | int flag_operator_names; | |
423 | ||
d18c083e MS |
424 | /* Nonzero if we want to check the return value of new and avoid calling |
425 | constructors if it is a null pointer. */ | |
426 | ||
427 | int flag_check_new; | |
428 | ||
863adfc0 | 429 | /* Nonzero if we want the new ANSI rules for pushing a new scope for `for' |
57c0c9ca PB |
430 | initialization variables. |
431 | 0: Old rules, set by -fno-for-scope. | |
432 | 2: New ANSI rules, set by -ffor-scope. | |
abc95ed3 | 433 | 1: Try to implement new ANSI rules, but with backup compatibility |
57c0c9ca | 434 | (and warnings). This is the default, for now. */ |
863adfc0 MS |
435 | |
436 | int flag_new_for_scope = 1; | |
437 | ||
72b7eeff MS |
438 | /* Nonzero if we want to emit defined symbols with common-like linkage as |
439 | weak symbols where possible, in order to conform to C++ semantics. | |
440 | Otherwise, emit them as local symbols. */ | |
441 | ||
442 | int flag_weak = 1; | |
443 | ||
a59ca936 JM |
444 | /* Nonzero to enable experimental ABI changes. */ |
445 | ||
446 | int flag_new_abi; | |
732dcb6f | 447 | |
2c73f9f5 ML |
448 | /* Nonzero to not ignore namespace std. */ |
449 | ||
450 | int flag_honor_std; | |
451 | ||
e9f32eb5 MS |
452 | /* Maximum template instantiation depth. Must be at least 17 for ANSI |
453 | compliance. */ | |
454 | ||
455 | int max_tinst_depth = 17; | |
456 | ||
386b8a85 JM |
457 | /* The name-mangling scheme to use. Must be 1 or greater to support |
458 | template functions with identical types, but different template | |
459 | arguments. */ | |
1d9ffce9 | 460 | int name_mangling_version = 2; |
386b8a85 JM |
461 | |
462 | /* Nonzero means that guiding declarations are allowed. */ | |
463 | int flag_guiding_decls; | |
464 | ||
1d9ffce9 AM |
465 | /* Nonzero if squashed mangling is to be performed. |
466 | This uses the B and K codes to reference previously seen class types | |
467 | and class qualifiers. */ | |
468 | int flag_do_squangling; | |
469 | ||
a1dd0d36 JM |
470 | /* Nonzero means output .vtable_{entry,inherit} for use in doing vtable gc. */ |
471 | ||
472 | int flag_vtable_gc; | |
1d9ffce9 | 473 | |
2642b9bf JM |
474 | /* Nonzero means make the default pedwarns warnings instead of errors. |
475 | The value of this flag is ignored if -pedantic is specified. */ | |
476 | ||
477 | int flag_permissive; | |
478 | ||
8d08fdba MS |
479 | /* Table of language-dependent -f options. |
480 | STRING is the option name. VARIABLE is the address of the variable. | |
481 | ON_VALUE is the value to store in VARIABLE | |
482 | if `-fSTRING' is seen as an option. | |
483 | (If `-fno-STRING' is seen as an option, the opposite value is stored.) */ | |
484 | ||
d8e178a0 KG |
485 | static struct { const char *string; int *variable; int on_value;} |
486 | lang_f_options[] = | |
8d08fdba | 487 | { |
e5b0708a | 488 | /* C/C++ options. */ |
8d08fdba MS |
489 | {"signed-char", &flag_signed_char, 1}, |
490 | {"unsigned-char", &flag_signed_char, 0}, | |
491 | {"signed-bitfields", &flag_signed_bitfields, 1}, | |
492 | {"unsigned-bitfields", &flag_signed_bitfields, 0}, | |
493 | {"short-enums", &flag_short_enums, 1}, | |
494 | {"short-double", &flag_short_double, 1}, | |
495 | {"cond-mismatch", &flag_cond_mismatch, 1}, | |
496 | {"asm", &flag_no_asm, 0}, | |
497 | {"builtin", &flag_no_builtin, 0}, | |
e5b0708a JM |
498 | |
499 | /* C++-only options. */ | |
500 | {"access-control", &flag_access_control, 1}, | |
501 | {"check-new", &flag_check_new, 1}, | |
502 | {"conserve-space", &flag_conserve_space, 1}, | |
d9cf7c82 | 503 | {"const-strings", &flag_const_strings, 1}, |
e5b0708a JM |
504 | {"default-inline", &flag_default_inline, 1}, |
505 | {"dollars-in-identifiers", &dollars_in_ident, 1}, | |
8d08fdba | 506 | {"elide-constructors", &flag_elide_constructors, 1}, |
e5b0708a JM |
507 | {"external-templates", &flag_external_templates, 1}, |
508 | {"for-scope", &flag_new_for_scope, 2}, | |
509 | {"gnu-keywords", &flag_no_gnu_keywords, 0}, | |
da20811c | 510 | {"handle-exceptions", &flag_exceptions, 1}, |
8d08fdba | 511 | {"handle-signatures", &flag_handle_signatures, 1}, |
2c73f9f5 | 512 | {"honor-std", &flag_honor_std, 1}, |
e5b0708a | 513 | {"huge-objects", &flag_huge_objects, 1}, |
8d08fdba | 514 | {"implement-inlines", &flag_implement_inlines, 1}, |
5eea678f | 515 | {"implicit-inline-templates", &flag_implicit_inline_templates, 1}, |
e5b0708a | 516 | {"implicit-templates", &flag_implicit_templates, 1}, |
e5b0708a | 517 | {"labels-ok", &flag_labels_ok, 1}, |
e1cd6e56 | 518 | {"nonansi-builtins", &flag_no_nonansi_builtin, 0}, |
d18c083e | 519 | {"operator-names", &flag_operator_names, 1}, |
dc8263bc | 520 | {"optional-diags", &flag_optional_diags, 1}, |
2642b9bf | 521 | {"permissive", &flag_permissive, 1}, |
863adfc0 | 522 | {"repo", &flag_use_repository, 1}, |
e5b0708a JM |
523 | {"rtti", &flag_rtti, 1}, |
524 | {"squangle", &flag_do_squangling, 1}, | |
525 | {"stats", &flag_detailed_statistics, 1}, | |
526 | {"strict-prototype", &flag_strict_prototype, 1}, | |
527 | {"this-is-variable", &flag_this_is_variable, 1}, | |
528 | {"vtable-gc", &flag_vtable_gc, 1}, | |
529 | {"vtable-thunks", &flag_vtable_thunks, 1}, | |
530 | {"weak", &flag_weak, 1}, | |
531 | {"xref", &flag_gnu_xref, 1} | |
8d08fdba MS |
532 | }; |
533 | ||
534 | /* Decode the string P as a language-specific option. | |
297441fd DB |
535 | Return the number of strings consumed for a valid option. |
536 | Otherwise return 0. */ | |
8d08fdba MS |
537 | |
538 | int | |
297441fd | 539 | lang_decode_option (argc, argv) |
b370501f KG |
540 | int argc |
541 | #if !USE_CPPLIB | |
542 | ATTRIBUTE_UNUSED | |
543 | #endif | |
544 | ; | |
297441fd DB |
545 | char **argv; |
546 | ||
8d08fdba | 547 | { |
297441fd DB |
548 | int strings_processed; |
549 | char *p = argv[0]; | |
550 | #if USE_CPPLIB | |
297441fd DB |
551 | strings_processed = cpp_handle_option (&parse_in, argc, argv); |
552 | #else | |
553 | strings_processed = 0; | |
554 | #endif /* ! USE_CPPLIB */ | |
555 | ||
8d08fdba | 556 | if (!strcmp (p, "-ftraditional") || !strcmp (p, "-traditional")) |
8cd4c175 | 557 | /* ignore */; |
8d08fdba MS |
558 | else if (p[0] == '-' && p[1] == 'f') |
559 | { | |
560 | /* Some kind of -f option. | |
561 | P's value is the option sans `-f'. | |
562 | Search for it in the table of options. */ | |
85066503 MH |
563 | int found = 0; |
564 | size_t j; | |
8d08fdba MS |
565 | |
566 | p += 2; | |
567 | /* Try special -f options. */ | |
568 | ||
da20811c JM |
569 | if (!strcmp (p, "handle-exceptions") |
570 | || !strcmp (p, "no-handle-exceptions")) | |
8251199e | 571 | warning ("-fhandle-exceptions has been renamed to -fexceptions (and is now on by default)"); |
da20811c | 572 | |
e907984f JM |
573 | if (!strcmp (p, "memoize-lookups") |
574 | || !strcmp (p, "no-memoize-lookups") | |
575 | || !strcmp (p, "save-memoized") | |
84663f74 JM |
576 | || !strcmp (p, "no-save-memoized") |
577 | || !strcmp (p, "no-all-virtual") | |
578 | || !strcmp (p, "no-enum-int-equiv") | |
579 | || !strcmp (p, "nonnull-objects") | |
580 | || !strcmp (p, "ansi-overloading")) | |
8d08fdba | 581 | { |
e907984f | 582 | /* ignore */ |
8d08fdba MS |
583 | found = 1; |
584 | } | |
84663f74 JM |
585 | else if (!strcmp (p, "all-virtual") |
586 | || !strcmp (p, "enum-int-equiv") | |
587 | || !strcmp (p, "no-nonnull-objects") | |
588 | || !strcmp (p, "no-ansi-overloading")) | |
589 | { | |
8251199e | 590 | warning ("-f%s is no longer supported", p); |
84663f74 JM |
591 | found = 1; |
592 | } | |
8d08fdba MS |
593 | else if (! strcmp (p, "alt-external-templates")) |
594 | { | |
595 | flag_external_templates = 1; | |
596 | flag_alt_external_templates = 1; | |
597 | found = 1; | |
2de45c06 | 598 | cp_deprecated ("-falt-external-templates"); |
8d08fdba MS |
599 | } |
600 | else if (! strcmp (p, "no-alt-external-templates")) | |
601 | { | |
602 | flag_alt_external_templates = 0; | |
603 | found = 1; | |
604 | } | |
79ff2c6c MS |
605 | else if (!strcmp (p, "repo")) |
606 | { | |
607 | flag_use_repository = 1; | |
608 | flag_implicit_templates = 0; | |
609 | found = 1; | |
00595019 | 610 | } |
386b8a85 JM |
611 | else if (!strcmp (p, "guiding-decls")) |
612 | { | |
613 | flag_guiding_decls = 1; | |
614 | name_mangling_version = 0; | |
615 | found = 1; | |
616 | } | |
617 | else if (!strcmp (p, "no-guiding-decls")) | |
618 | { | |
619 | flag_guiding_decls = 0; | |
620 | found = 1; | |
621 | } | |
2de45c06 ML |
622 | else if (!strcmp (p, "this-is-variable")) |
623 | { | |
624 | flag_this_is_variable = 1; | |
625 | found = 1; | |
626 | cp_deprecated ("-fthis-is-variable"); | |
627 | } | |
628 | else if (!strcmp (p, "external-templates")) | |
629 | { | |
630 | flag_external_templates = 1; | |
631 | found = 1; | |
632 | cp_deprecated ("-fexternal-templates"); | |
633 | } | |
a59ca936 JM |
634 | else if (!strcmp (p, "new-abi")) |
635 | { | |
636 | flag_new_abi = 1; | |
637 | flag_do_squangling = 1; | |
2c73f9f5 | 638 | flag_honor_std = 1; |
9577319f | 639 | flag_vtable_thunks = 1; |
a59ca936 JM |
640 | } |
641 | else if (!strcmp (p, "no-new-abi")) | |
642 | { | |
643 | flag_new_abi = 0; | |
644 | flag_do_squangling = 0; | |
2c73f9f5 | 645 | flag_honor_std = 0; |
a59ca936 | 646 | } |
e9f32eb5 MS |
647 | else if (!strncmp (p, "template-depth-", 15)) |
648 | { | |
0daa67d1 TP |
649 | max_tinst_depth = |
650 | read_integral_parameter (p + 15, p - 2, max_tinst_depth); | |
e9f32eb5 | 651 | } |
386b8a85 JM |
652 | else if (!strncmp (p, "name-mangling-version-", 22)) |
653 | { | |
0daa67d1 TP |
654 | name_mangling_version = |
655 | read_integral_parameter (p + 22, p - 2, name_mangling_version); | |
386b8a85 | 656 | } |
f71f87f9 MM |
657 | else if (!strncmp (p, "dump-translation-unit-", 22)) |
658 | { | |
659 | if (p[22] == '\0') | |
660 | error ("no file specified with -fdump-translation-unit"); | |
661 | else | |
662 | flag_dump_translation_unit = p + 22; | |
663 | } | |
8d08fdba MS |
664 | else for (j = 0; |
665 | !found && j < sizeof (lang_f_options) / sizeof (lang_f_options[0]); | |
666 | j++) | |
667 | { | |
668 | if (!strcmp (p, lang_f_options[j].string)) | |
669 | { | |
670 | *lang_f_options[j].variable = lang_f_options[j].on_value; | |
671 | /* A goto here would be cleaner, | |
672 | but breaks the vax pcc. */ | |
673 | found = 1; | |
674 | } | |
675 | if (p[0] == 'n' && p[1] == 'o' && p[2] == '-' | |
676 | && ! strcmp (p+3, lang_f_options[j].string)) | |
677 | { | |
678 | *lang_f_options[j].variable = ! lang_f_options[j].on_value; | |
679 | found = 1; | |
680 | } | |
681 | } | |
682 | return found; | |
683 | } | |
684 | else if (p[0] == '-' && p[1] == 'W') | |
685 | { | |
686 | int setting = 1; | |
687 | ||
688 | /* The -W options control the warning behavior of the compiler. */ | |
689 | p += 2; | |
690 | ||
691 | if (p[0] == 'n' && p[1] == 'o' && p[2] == '-') | |
692 | setting = 0, p += 3; | |
693 | ||
694 | if (!strcmp (p, "implicit")) | |
695 | warn_implicit = setting; | |
795add94 VM |
696 | else if (!strcmp (p, "long-long")) |
697 | warn_long_long = setting; | |
8d08fdba MS |
698 | else if (!strcmp (p, "return-type")) |
699 | warn_return_type = setting; | |
700 | else if (!strcmp (p, "ctor-dtor-privacy")) | |
701 | warn_ctor_dtor_privacy = setting; | |
702 | else if (!strcmp (p, "write-strings")) | |
703 | warn_write_strings = setting; | |
704 | else if (!strcmp (p, "cast-qual")) | |
705 | warn_cast_qual = setting; | |
8d08fdba MS |
706 | else if (!strcmp (p, "char-subscripts")) |
707 | warn_char_subscripts = setting; | |
708 | else if (!strcmp (p, "pointer-arith")) | |
709 | warn_pointer_arith = setting; | |
8d08fdba MS |
710 | else if (!strcmp (p, "missing-prototypes")) |
711 | warn_missing_prototypes = setting; | |
712 | else if (!strcmp (p, "redundant-decls")) | |
713 | warn_redundant_decls = setting; | |
714 | else if (!strcmp (p, "missing-braces")) | |
715 | warn_missing_braces = setting; | |
2ee887f2 MS |
716 | else if (!strcmp (p, "sign-compare")) |
717 | warn_sign_compare = setting; | |
8d08fdba MS |
718 | else if (!strcmp (p, "format")) |
719 | warn_format = setting; | |
720 | else if (!strcmp (p, "conversion")) | |
721 | warn_conversion = setting; | |
722 | else if (!strcmp (p, "parentheses")) | |
723 | warn_parentheses = setting; | |
21474714 MS |
724 | else if (!strcmp (p, "non-virtual-dtor")) |
725 | warn_nonvdtor = setting; | |
8d08fdba MS |
726 | else if (!strcmp (p, "extern-inline")) |
727 | warn_extern_inline = setting; | |
f376e137 MS |
728 | else if (!strcmp (p, "reorder")) |
729 | warn_reorder = setting; | |
730 | else if (!strcmp (p, "synth")) | |
731 | warn_synth = setting; | |
9a3b49ac MS |
732 | else if (!strcmp (p, "pmf-conversions")) |
733 | warn_pmf2ptr = setting; | |
eb448459 MS |
734 | else if (!strcmp (p, "effc++")) |
735 | warn_ecpp = setting; | |
da20811c JM |
736 | else if (!strcmp (p, "sign-promo")) |
737 | warn_sign_promo = setting; | |
0c4b14c4 JM |
738 | else if (!strcmp (p, "old-style-cast")) |
739 | warn_old_style_cast = setting; | |
dc8263bc JM |
740 | else if (!strcmp (p, "overloaded-virtual")) |
741 | warn_overloaded_virtual = setting; | |
742 | else if (!strcmp (p, "multichar")) | |
743 | warn_multichar = setting; | |
f9fc59e8 NC |
744 | else if (!strcmp (p, "unknown-pragmas")) |
745 | /* Set to greater than 1, so that even unknown pragmas in | |
746 | system headers will be warned about. */ | |
747 | warn_unknown_pragmas = setting * 2; | |
7f84cec9 BK |
748 | else if (!strcmp (p, "non-template-friend")) |
749 | warn_nontemplate_friend = setting; | |
2de45c06 ML |
750 | else if (!strcmp (p, "deprecated")) |
751 | warn_deprecated = setting; | |
8d08fdba MS |
752 | else if (!strcmp (p, "comment")) |
753 | ; /* cpp handles this one. */ | |
754 | else if (!strcmp (p, "comments")) | |
755 | ; /* cpp handles this one. */ | |
756 | else if (!strcmp (p, "trigraphs")) | |
757 | ; /* cpp handles this one. */ | |
758 | else if (!strcmp (p, "import")) | |
759 | ; /* cpp handles this one. */ | |
760 | else if (!strcmp (p, "all")) | |
761 | { | |
8d08fdba MS |
762 | warn_return_type = setting; |
763 | warn_unused = setting; | |
764 | warn_implicit = setting; | |
8d08fdba MS |
765 | warn_switch = setting; |
766 | warn_format = setting; | |
e1cd6e56 | 767 | warn_parentheses = setting; |
8d08fdba | 768 | warn_missing_braces = setting; |
2ee887f2 | 769 | warn_sign_compare = setting; |
dc8263bc | 770 | warn_multichar = setting; |
8d08fdba MS |
771 | /* We save the value of warn_uninitialized, since if they put |
772 | -Wuninitialized on the command line, we need to generate a | |
773 | warning about not using it without also specifying -O. */ | |
774 | if (warn_uninitialized != 1) | |
775 | warn_uninitialized = (setting ? 2 : 0); | |
f9fc59e8 NC |
776 | /* Only warn about unknown pragmas that are not in system |
777 | headers. */ | |
7f84cec9 | 778 | warn_unknown_pragmas = 1; |
9af3a23b JM |
779 | |
780 | /* C++-specific warnings. */ | |
781 | warn_ctor_dtor_privacy = setting; | |
782 | warn_nonvdtor = setting; | |
783 | warn_reorder = setting; | |
7f84cec9 | 784 | warn_nontemplate_friend = setting; |
8d08fdba | 785 | } |
297441fd | 786 | else return strings_processed; |
8d08fdba MS |
787 | } |
788 | else if (!strcmp (p, "-ansi")) | |
4f6140be | 789 | flag_no_nonansi_builtin = 1, flag_ansi = 1, |
e1cd6e56 | 790 | flag_no_gnu_keywords = 1, flag_operator_names = 1; |
8d08fdba MS |
791 | #ifdef SPEW_DEBUG |
792 | /* Undocumented, only ever used when you're invoking cc1plus by hand, since | |
793 | it's probably safe to assume no sane person would ever want to use this | |
794 | under normal circumstances. */ | |
795 | else if (!strcmp (p, "-spew-debug")) | |
796 | spew_debug = 1; | |
797 | #endif | |
798 | else | |
297441fd | 799 | return strings_processed; |
8d08fdba MS |
800 | |
801 | return 1; | |
802 | } | |
803 | \f | |
804 | /* Incorporate `const' and `volatile' qualifiers for member functions. | |
805 | FUNCTION is a TYPE_DECL or a FUNCTION_DECL. | |
806 | QUALS is a list of qualifiers. */ | |
e92cc029 | 807 | |
8d08fdba MS |
808 | tree |
809 | grok_method_quals (ctype, function, quals) | |
810 | tree ctype, function, quals; | |
811 | { | |
812 | tree fntype = TREE_TYPE (function); | |
813 | tree raises = TYPE_RAISES_EXCEPTIONS (fntype); | |
91063b51 MM |
814 | int type_quals = TYPE_UNQUALIFIED; |
815 | int dup_quals = TYPE_UNQUALIFIED; | |
8d08fdba MS |
816 | |
817 | do | |
818 | { | |
91063b51 MM |
819 | int tq = cp_type_qual_from_rid (TREE_VALUE (quals)); |
820 | ||
821 | if (type_quals & tq) | |
822 | dup_quals |= tq; | |
8d08fdba | 823 | else |
91063b51 | 824 | type_quals |= tq; |
8d08fdba | 825 | quals = TREE_CHAIN (quals); |
91063b51 | 826 | } |
8d08fdba | 827 | while (quals); |
91063b51 MM |
828 | |
829 | if (dup_quals != TYPE_UNQUALIFIED) | |
830 | cp_error ("duplicate type qualifiers in %s declaration", | |
831 | TREE_CODE (function) == FUNCTION_DECL | |
832 | ? "member function" : "type"); | |
833 | ||
834 | ctype = cp_build_qualified_type (ctype, type_quals); | |
8d08fdba MS |
835 | fntype = build_cplus_method_type (ctype, TREE_TYPE (fntype), |
836 | (TREE_CODE (fntype) == METHOD_TYPE | |
837 | ? TREE_CHAIN (TYPE_ARG_TYPES (fntype)) | |
838 | : TYPE_ARG_TYPES (fntype))); | |
839 | if (raises) | |
f30432d7 | 840 | fntype = build_exception_variant (fntype, raises); |
8d08fdba MS |
841 | |
842 | TREE_TYPE (function) = fntype; | |
843 | return ctype; | |
844 | } | |
845 | ||
8d08fdba MS |
846 | /* Warn when -fexternal-templates is used and #pragma |
847 | interface/implementation is not used all the times it should be, | |
848 | inform the user. */ | |
e92cc029 | 849 | |
8d08fdba | 850 | void |
8ccc31eb MS |
851 | warn_if_unknown_interface (decl) |
852 | tree decl; | |
8d08fdba MS |
853 | { |
854 | static int already_warned = 0; | |
8ccc31eb MS |
855 | if (already_warned++) |
856 | return; | |
857 | ||
858 | if (flag_alt_external_templates) | |
859 | { | |
860 | struct tinst_level *til = tinst_for_decl (); | |
861 | int sl = lineno; | |
862 | char *sf = input_filename; | |
863 | ||
f30432d7 MS |
864 | if (til) |
865 | { | |
866 | lineno = til->line; | |
867 | input_filename = til->file; | |
868 | } | |
8251199e | 869 | cp_warning ("template `%#D' instantiated in file without #pragma interface", |
8ccc31eb MS |
870 | decl); |
871 | lineno = sl; | |
872 | input_filename = sf; | |
873 | } | |
874 | else | |
8251199e | 875 | cp_warning_at ("template `%#D' defined in file without #pragma interface", |
8ccc31eb | 876 | decl); |
8d08fdba MS |
877 | } |
878 | ||
879 | /* A subroutine of the parser, to handle a component list. */ | |
e92cc029 | 880 | |
61a127b3 MM |
881 | void |
882 | grok_x_components (specs) | |
883 | tree specs; | |
8d08fdba | 884 | { |
61a127b3 MM |
885 | struct pending_inline **p; |
886 | tree t; | |
8d08fdba | 887 | |
72a93143 JM |
888 | specs = strip_attrs (specs); |
889 | ||
890 | check_tag_decl (specs); | |
891 | t = groktypename (build_decl_list (specs, NULL_TREE)); | |
36a117a5 | 892 | |
61a127b3 MM |
893 | /* The only case where we need to do anything additional here is an |
894 | anonymous union field, e.g.: `struct S { union { int i; }; };'. */ | |
6bdb8141 | 895 | if (t == NULL_TREE || !ANON_AGGR_TYPE_P (t)) |
61a127b3 | 896 | return; |
8d08fdba | 897 | |
6bdb8141 | 898 | fixup_anonymous_aggr (t); |
61a127b3 MM |
899 | finish_member_declaration (build_lang_field_decl (FIELD_DECL, |
900 | NULL_TREE, | |
901 | t)); | |
902 | ||
903 | /* Ignore any inline function definitions in the anonymous union | |
904 | since an anonymous union may not have function members. */ | |
905 | p = &pending_inlines; | |
906 | for (; *p; *p = (*p)->next) | |
907 | if (DECL_CONTEXT ((*p)->fndecl) != t) | |
908 | break; | |
8d08fdba MS |
909 | } |
910 | ||
711734a9 JM |
911 | /* Constructors for types with virtual baseclasses need an "in-charge" flag |
912 | saying whether this constructor is responsible for initialization of | |
913 | virtual baseclasses or not. All destructors also need this "in-charge" | |
914 | flag, which additionally determines whether or not the destructor should | |
915 | free the memory for the object. | |
916 | ||
917 | This function adds the "in-charge" flag to member function FN if | |
918 | appropriate. It is called from grokclassfn and tsubst. | |
919 | FN must be either a constructor or destructor. */ | |
920 | ||
921 | void | |
922 | maybe_retrofit_in_chrg (fn) | |
923 | tree fn; | |
924 | { | |
925 | tree basetype, arg_types, parms, parm, fntype; | |
926 | ||
927 | if (DECL_CONSTRUCTOR_P (fn) | |
928 | && TYPE_USES_VIRTUAL_BASECLASSES (DECL_CLASS_CONTEXT (fn)) | |
929 | && ! DECL_CONSTRUCTOR_FOR_VBASE_P (fn)) | |
930 | /* OK */; | |
931 | else if (! DECL_CONSTRUCTOR_P (fn) | |
932 | && TREE_CHAIN (DECL_ARGUMENTS (fn)) == NULL_TREE) | |
933 | /* OK */; | |
934 | else | |
935 | return; | |
936 | ||
937 | if (DECL_CONSTRUCTOR_P (fn)) | |
938 | DECL_CONSTRUCTOR_FOR_VBASE_P (fn) = 1; | |
939 | ||
940 | /* First add it to DECL_ARGUMENTS... */ | |
941 | parm = build_decl (PARM_DECL, in_charge_identifier, integer_type_node); | |
942 | /* Mark the artificial `__in_chrg' parameter as "artificial". */ | |
943 | SET_DECL_ARTIFICIAL (parm); | |
944 | DECL_ARG_TYPE (parm) = integer_type_node; | |
945 | TREE_READONLY (parm) = 1; | |
946 | parms = DECL_ARGUMENTS (fn); | |
947 | TREE_CHAIN (parm) = TREE_CHAIN (parms); | |
948 | TREE_CHAIN (parms) = parm; | |
949 | ||
950 | /* ...and then to TYPE_ARG_TYPES. */ | |
951 | arg_types = TYPE_ARG_TYPES (TREE_TYPE (fn)); | |
952 | basetype = TREE_TYPE (TREE_VALUE (arg_types)); | |
953 | arg_types = hash_tree_chain (integer_type_node, TREE_CHAIN (arg_types)); | |
954 | fntype = build_cplus_method_type (basetype, TREE_TYPE (TREE_TYPE (fn)), | |
955 | arg_types); | |
956 | if (TYPE_RAISES_EXCEPTIONS (TREE_TYPE (fn))) | |
957 | fntype = build_exception_variant (fntype, | |
958 | TYPE_RAISES_EXCEPTIONS (TREE_TYPE (fn))); | |
959 | TREE_TYPE (fn) = fntype; | |
960 | } | |
961 | ||
8d08fdba MS |
962 | /* Classes overload their constituent function names automatically. |
963 | When a function name is declared in a record structure, | |
964 | its name is changed to it overloaded name. Since names for | |
965 | constructors and destructors can conflict, we place a leading | |
966 | '$' for destructors. | |
967 | ||
968 | CNAME is the name of the class we are grokking for. | |
969 | ||
970 | FUNCTION is a FUNCTION_DECL. It was created by `grokdeclarator'. | |
971 | ||
972 | FLAGS contains bits saying what's special about today's | |
973 | arguments. 1 == DESTRUCTOR. 2 == OPERATOR. | |
974 | ||
975 | If FUNCTION is a destructor, then we must add the `auto-delete' field | |
976 | as a second parameter. There is some hair associated with the fact | |
977 | that we must "declare" this variable in the manner consistent with the | |
978 | way the rest of the arguments were declared. | |
979 | ||
980 | QUALS are the qualifiers for the this pointer. */ | |
981 | ||
982 | void | |
b370501f KG |
983 | grokclassfn (ctype, function, flags, quals) |
984 | tree ctype, function; | |
8d08fdba MS |
985 | enum overload_flags flags; |
986 | tree quals; | |
987 | { | |
988 | tree fn_name = DECL_NAME (function); | |
989 | tree arg_types; | |
990 | tree parm; | |
700f8a87 | 991 | tree qualtype; |
8d08fdba MS |
992 | |
993 | if (fn_name == NULL_TREE) | |
994 | { | |
8251199e | 995 | error ("name missing for member function"); |
8d08fdba MS |
996 | fn_name = get_identifier ("<anonymous>"); |
997 | DECL_NAME (function) = fn_name; | |
998 | } | |
999 | ||
1000 | if (quals) | |
700f8a87 MS |
1001 | qualtype = grok_method_quals (ctype, function, quals); |
1002 | else | |
1003 | qualtype = ctype; | |
8d08fdba MS |
1004 | |
1005 | arg_types = TYPE_ARG_TYPES (TREE_TYPE (function)); | |
1006 | if (TREE_CODE (TREE_TYPE (function)) == METHOD_TYPE) | |
1007 | { | |
1008 | /* Must add the class instance variable up front. */ | |
1009 | /* Right now we just make this a pointer. But later | |
1010 | we may wish to make it special. */ | |
1011 | tree type = TREE_VALUE (arg_types); | |
863adfc0 | 1012 | int constp = 1; |
8d08fdba | 1013 | |
2986ae00 MS |
1014 | if ((flag_this_is_variable > 0) |
1015 | && (flags == DTOR_FLAG || DECL_CONSTRUCTOR_P (function))) | |
863adfc0 | 1016 | constp = 0; |
2986ae00 | 1017 | |
8d08fdba MS |
1018 | parm = build_decl (PARM_DECL, this_identifier, type); |
1019 | /* Mark the artificial `this' parameter as "artificial". */ | |
700f8a87 | 1020 | SET_DECL_ARTIFICIAL (parm); |
8d08fdba MS |
1021 | DECL_ARG_TYPE (parm) = type; |
1022 | /* We can make this a register, so long as we don't | |
1023 | accidentally complain if someone tries to take its address. */ | |
1024 | DECL_REGISTER (parm) = 1; | |
863adfc0 | 1025 | if (constp) |
8d08fdba MS |
1026 | TREE_READONLY (parm) = 1; |
1027 | TREE_CHAIN (parm) = last_function_parms; | |
1028 | last_function_parms = parm; | |
1029 | } | |
1030 | ||
711734a9 JM |
1031 | DECL_ARGUMENTS (function) = last_function_parms; |
1032 | /* First approximations. */ | |
1033 | DECL_CONTEXT (function) = ctype; | |
1034 | DECL_CLASS_CONTEXT (function) = ctype; | |
1035 | ||
1036 | if (flags == DTOR_FLAG || DECL_CONSTRUCTOR_P (function)) | |
1037 | { | |
1038 | maybe_retrofit_in_chrg (function); | |
1039 | arg_types = TYPE_ARG_TYPES (TREE_TYPE (function)); | |
1040 | } | |
1041 | ||
8d08fdba MS |
1042 | if (flags == DTOR_FLAG) |
1043 | { | |
711734a9 | 1044 | DECL_ASSEMBLER_NAME (function) = build_destructor_name (ctype); |
8d08fdba MS |
1045 | TYPE_HAS_DESTRUCTOR (ctype) = 1; |
1046 | } | |
1047 | else | |
36a117a5 | 1048 | set_mangled_name_for_decl (function); |
8d08fdba MS |
1049 | } |
1050 | ||
1051 | /* Work on the expr used by alignof (this is only called by the parser). */ | |
e92cc029 | 1052 | |
8d08fdba MS |
1053 | tree |
1054 | grok_alignof (expr) | |
1055 | tree expr; | |
1056 | { | |
1057 | tree best, t; | |
1058 | int bestalign; | |
1059 | ||
abff8e06 JM |
1060 | if (processing_template_decl) |
1061 | return build_min (ALIGNOF_EXPR, sizetype, expr); | |
1062 | ||
8d08fdba | 1063 | if (TREE_CODE (expr) == COMPONENT_REF |
162bc98d | 1064 | && DECL_C_BIT_FIELD (TREE_OPERAND (expr, 1))) |
8251199e | 1065 | error ("`__alignof__' applied to a bit-field"); |
8d08fdba MS |
1066 | |
1067 | if (TREE_CODE (expr) == INDIRECT_REF) | |
1068 | { | |
1069 | best = t = TREE_OPERAND (expr, 0); | |
1070 | bestalign = TYPE_ALIGN (TREE_TYPE (TREE_TYPE (t))); | |
1071 | ||
1072 | while (TREE_CODE (t) == NOP_EXPR | |
1073 | && TREE_CODE (TREE_TYPE (TREE_OPERAND (t, 0))) == POINTER_TYPE) | |
1074 | { | |
1075 | int thisalign; | |
1076 | t = TREE_OPERAND (t, 0); | |
1077 | thisalign = TYPE_ALIGN (TREE_TYPE (TREE_TYPE (t))); | |
1078 | if (thisalign > bestalign) | |
1079 | best = t, bestalign = thisalign; | |
1080 | } | |
1081 | return c_alignof (TREE_TYPE (TREE_TYPE (best))); | |
1082 | } | |
1083 | else | |
1084 | { | |
1085 | /* ANSI says arrays and fns are converted inside comma. | |
1086 | But we can't convert them in build_compound_expr | |
1087 | because that would break commas in lvalues. | |
1088 | So do the conversion here if operand was a comma. */ | |
1089 | if (TREE_CODE (expr) == COMPOUND_EXPR | |
1090 | && (TREE_CODE (TREE_TYPE (expr)) == ARRAY_TYPE | |
1091 | || TREE_CODE (TREE_TYPE (expr)) == FUNCTION_TYPE)) | |
1092 | expr = default_conversion (expr); | |
1093 | return c_alignof (TREE_TYPE (expr)); | |
1094 | } | |
1095 | } | |
1096 | ||
1097 | /* Create an ARRAY_REF, checking for the user doing things backwards | |
1098 | along the way. */ | |
e92cc029 | 1099 | |
8d08fdba MS |
1100 | tree |
1101 | grok_array_decl (array_expr, index_exp) | |
1102 | tree array_expr, index_exp; | |
1103 | { | |
1104 | tree type = TREE_TYPE (array_expr); | |
b7484fbe | 1105 | tree p1, p2, i1, i2; |
8d08fdba MS |
1106 | |
1107 | if (type == error_mark_node || index_exp == error_mark_node) | |
1108 | return error_mark_node; | |
5156628f | 1109 | if (processing_template_decl) |
5566b478 MS |
1110 | return build_min (ARRAY_REF, type ? TREE_TYPE (type) : NULL_TREE, |
1111 | array_expr, index_exp); | |
1112 | ||
8d08fdba MS |
1113 | if (type == NULL_TREE) |
1114 | { | |
1115 | /* Something has gone very wrong. Assume we are mistakenly reducing | |
1116 | an expression instead of a declaration. */ | |
8251199e | 1117 | error ("parser may be lost: is there a '{' missing somewhere?"); |
8d08fdba MS |
1118 | return NULL_TREE; |
1119 | } | |
1120 | ||
1121 | if (TREE_CODE (type) == OFFSET_TYPE | |
1122 | || TREE_CODE (type) == REFERENCE_TYPE) | |
1123 | type = TREE_TYPE (type); | |
1124 | ||
1125 | /* If they have an `operator[]', use that. */ | |
3c215895 | 1126 | if (IS_AGGR_TYPE (type) || IS_AGGR_TYPE (TREE_TYPE (index_exp))) |
8d08fdba | 1127 | return build_opfncall (ARRAY_REF, LOOKUP_NORMAL, |
00595019 | 1128 | array_expr, index_exp, NULL_TREE); |
8d08fdba | 1129 | |
03d0f4af MM |
1130 | /* Otherwise, create an ARRAY_REF for a pointer or array type. It |
1131 | is a little-known fact that, if `a' is an array and `i' is an | |
1132 | int, you can write `i[a]', which means the same thing as `a[i]'. */ | |
8d08fdba | 1133 | |
b7484fbe MS |
1134 | if (TREE_CODE (type) == ARRAY_TYPE) |
1135 | p1 = array_expr; | |
1136 | else | |
1137 | p1 = build_expr_type_conversion (WANT_POINTER, array_expr, 0); | |
8d08fdba | 1138 | |
b7484fbe MS |
1139 | if (TREE_CODE (TREE_TYPE (index_exp)) == ARRAY_TYPE) |
1140 | p2 = index_exp; | |
1141 | else | |
1142 | p2 = build_expr_type_conversion (WANT_POINTER, index_exp, 0); | |
8d08fdba | 1143 | |
b7484fbe MS |
1144 | i1 = build_expr_type_conversion (WANT_INT | WANT_ENUM, array_expr, 0); |
1145 | i2 = build_expr_type_conversion (WANT_INT | WANT_ENUM, index_exp, 0); | |
8d08fdba | 1146 | |
b7484fbe | 1147 | if ((p1 && i2) && (i1 && p2)) |
8251199e | 1148 | error ("ambiguous conversion for array subscript"); |
8d08fdba | 1149 | |
b7484fbe MS |
1150 | if (p1 && i2) |
1151 | array_expr = p1, index_exp = i2; | |
1152 | else if (i1 && p2) | |
1153 | array_expr = p2, index_exp = i1; | |
1154 | else | |
1155 | { | |
8251199e | 1156 | cp_error ("invalid types `%T[%T]' for array subscript", |
b7484fbe MS |
1157 | type, TREE_TYPE (index_exp)); |
1158 | return error_mark_node; | |
1159 | } | |
1160 | ||
1161 | if (array_expr == error_mark_node || index_exp == error_mark_node) | |
8251199e | 1162 | error ("ambiguous conversion for array subscript"); |
b7484fbe MS |
1163 | |
1164 | return build_array_ref (array_expr, index_exp); | |
8d08fdba MS |
1165 | } |
1166 | ||
1167 | /* Given the cast expression EXP, checking out its validity. Either return | |
1168 | an error_mark_node if there was an unavoidable error, return a cast to | |
1169 | void for trying to delete a pointer w/ the value 0, or return the | |
1170 | call to delete. If DOING_VEC is 1, we handle things differently | |
1171 | for doing an array delete. If DOING_VEC is 2, they gave us the | |
1172 | array size as an argument to delete. | |
1173 | Implements ARM $5.3.4. This is called from the parser. */ | |
e92cc029 | 1174 | |
8d08fdba MS |
1175 | tree |
1176 | delete_sanity (exp, size, doing_vec, use_global_delete) | |
1177 | tree exp, size; | |
1178 | int doing_vec, use_global_delete; | |
1179 | { | |
02020185 | 1180 | tree t, type; |
8d08fdba MS |
1181 | /* For a regular vector delete (aka, no size argument) we will pass |
1182 | this down as a NULL_TREE into build_vec_delete. */ | |
1183 | tree maxindex = NULL_TREE; | |
5566b478 | 1184 | |
909e536a MS |
1185 | if (exp == error_mark_node) |
1186 | return exp; | |
1187 | ||
5156628f | 1188 | if (processing_template_decl) |
5566b478 MS |
1189 | { |
1190 | t = build_min (DELETE_EXPR, void_type_node, exp, size); | |
1191 | DELETE_EXPR_USE_GLOBAL (t) = use_global_delete; | |
1192 | DELETE_EXPR_USE_VEC (t) = doing_vec; | |
1193 | return t; | |
1194 | } | |
1195 | ||
02020185 JM |
1196 | if (TREE_CODE (exp) == OFFSET_REF) |
1197 | exp = resolve_offset_ref (exp); | |
1198 | exp = convert_from_reference (exp); | |
1199 | t = stabilize_reference (exp); | |
1200 | t = build_expr_type_conversion (WANT_POINTER, t, 1); | |
8d08fdba | 1201 | |
02020185 | 1202 | if (t == NULL_TREE || t == error_mark_node) |
8d08fdba | 1203 | { |
8251199e | 1204 | cp_error ("type `%#T' argument given to `delete', expected pointer", |
02020185 JM |
1205 | TREE_TYPE (exp)); |
1206 | return error_mark_node; | |
8d08fdba MS |
1207 | } |
1208 | ||
02020185 | 1209 | if (doing_vec == 2) |
8d08fdba | 1210 | { |
337c90cc | 1211 | maxindex = build_binary_op (MINUS_EXPR, size, integer_one_node); |
8251199e | 1212 | pedwarn ("anachronistic use of array size in vector delete"); |
8d08fdba MS |
1213 | } |
1214 | ||
02020185 JM |
1215 | type = TREE_TYPE (t); |
1216 | ||
1217 | /* As of Valley Forge, you can delete a pointer to const. */ | |
1218 | ||
1219 | /* You can't delete functions. */ | |
1220 | if (TREE_CODE (TREE_TYPE (type)) == FUNCTION_TYPE) | |
8926095f | 1221 | { |
8251199e | 1222 | error ("cannot delete a function"); |
02020185 | 1223 | return error_mark_node; |
8926095f | 1224 | } |
02020185 | 1225 | |
7f477e81 NS |
1226 | /* Deleting ptr to void is undefined behaviour [expr.delete/3]. */ |
1227 | if (TREE_CODE (TREE_TYPE (type)) == VOID_TYPE) | |
1228 | cp_warning ("`%T' is not a pointer-to-object type", type); | |
1229 | ||
02020185 JM |
1230 | /* An array can't have been allocated by new, so complain. */ |
1231 | if (TREE_CODE (t) == ADDR_EXPR | |
1232 | && TREE_CODE (TREE_OPERAND (t, 0)) == VAR_DECL | |
1233 | && TREE_CODE (TREE_TYPE (TREE_OPERAND (t, 0))) == ARRAY_TYPE) | |
8251199e | 1234 | cp_warning ("deleting array `%#D'", TREE_OPERAND (t, 0)); |
02020185 JM |
1235 | |
1236 | /* Deleting a pointer with the value zero is valid and has no effect. */ | |
1237 | if (integer_zerop (t)) | |
1238 | return build1 (NOP_EXPR, void_type_node, t); | |
8d08fdba MS |
1239 | |
1240 | if (doing_vec) | |
5566b478 | 1241 | return build_vec_delete (t, maxindex, integer_one_node, |
8a72a046 | 1242 | integer_zero_node, use_global_delete); |
8d08fdba | 1243 | else |
863adfc0 MS |
1244 | { |
1245 | if (IS_AGGR_TYPE (TREE_TYPE (type)) | |
1246 | && TYPE_GETS_REG_DELETE (TREE_TYPE (type))) | |
1247 | { | |
1248 | /* Only do access checking here; we'll be calling op delete | |
1249 | from the destructor. */ | |
519ebd1e JM |
1250 | tree tmp = build_op_delete_call (DELETE_EXPR, t, size_zero_node, |
1251 | LOOKUP_NORMAL, NULL_TREE); | |
863adfc0 MS |
1252 | if (tmp == error_mark_node) |
1253 | return error_mark_node; | |
1254 | } | |
1255 | ||
1256 | return build_delete (type, t, integer_three_node, | |
bd6dd845 | 1257 | LOOKUP_NORMAL, use_global_delete); |
863adfc0 | 1258 | } |
8d08fdba MS |
1259 | } |
1260 | ||
98c1c668 JM |
1261 | /* Report an error if the indicated template declaration is not the |
1262 | sort of thing that should be a member template. */ | |
1263 | ||
1264 | void | |
1265 | check_member_template (tmpl) | |
1266 | tree tmpl; | |
1267 | { | |
1268 | tree decl; | |
1269 | ||
1270 | my_friendly_assert (TREE_CODE (tmpl) == TEMPLATE_DECL, 0); | |
1271 | decl = DECL_TEMPLATE_RESULT (tmpl); | |
1272 | ||
1701f21e MM |
1273 | if (TREE_CODE (decl) == FUNCTION_DECL |
1274 | || (TREE_CODE (decl) == TYPE_DECL | |
1275 | && IS_AGGR_TYPE (TREE_TYPE (decl)))) | |
98c1c668 JM |
1276 | { |
1277 | if (current_function_decl) | |
1278 | /* 14.5.2.2 [temp.mem] | |
1279 | ||
1280 | A local class shall not have member templates. */ | |
8251199e | 1281 | cp_error ("declaration of member template `%#D' in local class", |
98c1c668 JM |
1282 | decl); |
1283 | ||
1701f21e | 1284 | if (TREE_CODE (decl) == FUNCTION_DECL && DECL_VIRTUAL_P (decl)) |
98c1c668 JM |
1285 | { |
1286 | /* 14.5.2.3 [temp.mem] | |
1287 | ||
1288 | A member function template shall not be virtual. */ | |
8251199e JM |
1289 | cp_error |
1290 | ("invalid use of `virtual' in template declaration of `%#D'", | |
98c1c668 JM |
1291 | decl); |
1292 | DECL_VIRTUAL_P (decl) = 0; | |
1293 | } | |
1294 | ||
1295 | /* The debug-information generating code doesn't know what to do | |
1296 | with member templates. */ | |
1297 | DECL_IGNORED_P (tmpl) = 1; | |
1298 | } | |
98c1c668 | 1299 | else |
8251199e | 1300 | cp_error ("template declaration of `%#D'", decl); |
98c1c668 JM |
1301 | } |
1302 | ||
eff71ab0 PB |
1303 | /* Return true iff TYPE is a valid Java parameter or return type. */ |
1304 | ||
d8e178a0 | 1305 | static int |
eff71ab0 PB |
1306 | acceptable_java_type (type) |
1307 | tree type; | |
1308 | { | |
1309 | if (TREE_CODE (type) == VOID_TYPE || TYPE_FOR_JAVA (type)) | |
1310 | return 1; | |
1311 | if (TREE_CODE (type) == POINTER_TYPE) | |
1312 | { | |
1313 | type = TREE_TYPE (type); | |
1314 | if (TREE_CODE (type) == RECORD_TYPE) | |
1315 | { | |
824f42ab PB |
1316 | tree args; int i; |
1317 | if (! TYPE_FOR_JAVA (type)) | |
1318 | return 0; | |
1319 | if (! CLASSTYPE_TEMPLATE_INFO (type)) | |
1320 | return 1; | |
1321 | args = CLASSTYPE_TI_ARGS (type); | |
1322 | i = TREE_VEC_LENGTH (args); | |
1323 | while (--i >= 0) | |
1324 | { | |
1325 | type = TREE_VEC_ELT (args, i); | |
1326 | if (TREE_CODE (type) == POINTER_TYPE) | |
1327 | type = TREE_TYPE (type); | |
1328 | if (! TYPE_FOR_JAVA (type)) | |
1329 | return 0; | |
1330 | } | |
1331 | return 1; | |
eff71ab0 PB |
1332 | } |
1333 | } | |
1334 | return 0; | |
1335 | } | |
1336 | ||
1337 | /* For a METHOD in a Java class CTYPE, return 1 if | |
1338 | the parameter and return types are valid Java types. | |
1339 | Otherwise, print appropriate error messages, and return 0. */ | |
1340 | ||
1341 | int | |
b370501f KG |
1342 | check_java_method (method) |
1343 | tree method; | |
eff71ab0 PB |
1344 | { |
1345 | int jerr = 0; | |
1346 | tree arg_types = TYPE_ARG_TYPES (TREE_TYPE (method)); | |
1347 | tree ret_type = TREE_TYPE (TREE_TYPE (method)); | |
1348 | if (! acceptable_java_type (ret_type)) | |
1349 | { | |
8251199e | 1350 | cp_error ("Java method '%D' has non-Java return type `%T'", |
eff71ab0 PB |
1351 | method, ret_type); |
1352 | jerr++; | |
1353 | } | |
1354 | for (; arg_types != NULL_TREE; arg_types = TREE_CHAIN (arg_types)) | |
1355 | { | |
1356 | tree type = TREE_VALUE (arg_types); | |
1357 | if (! acceptable_java_type (type)) | |
1358 | { | |
8251199e | 1359 | cp_error ("Java method '%D' has non-Java parameter type `%T'", |
eff71ab0 PB |
1360 | method, type); |
1361 | jerr++; | |
1362 | } | |
1363 | } | |
1364 | return jerr ? 0 : 1; | |
1365 | } | |
1366 | ||
8d08fdba MS |
1367 | /* Sanity check: report error if this function FUNCTION is not |
1368 | really a member of the class (CTYPE) it is supposed to belong to. | |
1369 | CNAME is the same here as it is for grokclassfn above. */ | |
1370 | ||
f30432d7 | 1371 | tree |
5566b478 MS |
1372 | check_classfn (ctype, function) |
1373 | tree ctype, function; | |
8d08fdba MS |
1374 | { |
1375 | tree fn_name = DECL_NAME (function); | |
2c73f9f5 | 1376 | tree fndecl, fndecls; |
5566b478 | 1377 | tree method_vec = CLASSTYPE_METHOD_VEC (complete_type (ctype)); |
8d08fdba MS |
1378 | tree *methods = 0; |
1379 | tree *end = 0; | |
03017874 MM |
1380 | |
1381 | if (DECL_USE_TEMPLATE (function) | |
1382 | && is_member_template (DECL_TI_TEMPLATE (function))) | |
1383 | /* Since this is a specialization of a member template, | |
1384 | we're not going to find the declaration in the class. | |
1385 | For example, in: | |
1386 | ||
1387 | struct S { template <typename T> void f(T); }; | |
1388 | template <> void S::f(int); | |
1389 | ||
1390 | we're not going to find `S::f(int)', but there's no | |
1391 | reason we should, either. We let our callers know we didn't | |
1392 | find the method, but we don't complain. */ | |
1393 | return NULL_TREE; | |
1394 | ||
8d08fdba MS |
1395 | if (method_vec != 0) |
1396 | { | |
1397 | methods = &TREE_VEC_ELT (method_vec, 0); | |
1398 | end = TREE_VEC_END (method_vec); | |
1399 | ||
1400 | /* First suss out ctors and dtors. */ | |
2c73f9f5 | 1401 | if (*methods && fn_name == DECL_NAME (OVL_CURRENT (*methods)) |
fc378698 MS |
1402 | && DECL_CONSTRUCTOR_P (function)) |
1403 | goto got_it; | |
2c73f9f5 | 1404 | if (*++methods && fn_name == DECL_NAME (OVL_CURRENT (*methods)) |
fc378698 | 1405 | && DESTRUCTOR_NAME_P (DECL_ASSEMBLER_NAME (function))) |
8d08fdba MS |
1406 | goto got_it; |
1407 | ||
61a127b3 | 1408 | while (++methods != end && *methods) |
8d08fdba | 1409 | { |
98c1c668 | 1410 | fndecl = *methods; |
2c73f9f5 | 1411 | if (fn_name == DECL_NAME (OVL_CURRENT (*methods))) |
8d08fdba MS |
1412 | { |
1413 | got_it: | |
2c73f9f5 ML |
1414 | for (fndecls = *methods; fndecls != NULL_TREE; |
1415 | fndecls = OVL_NEXT (fndecls)) | |
8d08fdba | 1416 | { |
2c73f9f5 | 1417 | fndecl = OVL_CURRENT (fndecls); |
6b4b3deb MM |
1418 | /* The DECL_ASSEMBLER_NAME for a TEMPLATE_DECL, or |
1419 | for a for member function of a template class, is | |
f84b4be9 | 1420 | not mangled, so the check below does not work |
6b4b3deb MM |
1421 | correctly in that case. Since mangled destructor |
1422 | names do not include the type of the arguments, | |
1423 | we can't use this short-cut for them, either. | |
1424 | (It's not legal to declare arguments for a | |
1425 | destructor, but some people try.) */ | |
1426 | if (!DESTRUCTOR_NAME_P (DECL_ASSEMBLER_NAME (function)) | |
1427 | && (DECL_ASSEMBLER_NAME (function) | |
1428 | != DECL_NAME (function)) | |
1429 | && (DECL_ASSEMBLER_NAME (fndecl) | |
1430 | != DECL_NAME (fndecl)) | |
f84b4be9 JM |
1431 | && (DECL_ASSEMBLER_NAME (function) |
1432 | == DECL_ASSEMBLER_NAME (fndecl))) | |
f30432d7 | 1433 | return fndecl; |
f84b4be9 JM |
1434 | |
1435 | /* We cannot simply call decls_match because this | |
1436 | doesn't work for static member functions that are | |
1437 | pretending to be methods, and because the name | |
1438 | may have been changed by asm("new_name"). */ | |
8145f082 MS |
1439 | if (DECL_NAME (function) == DECL_NAME (fndecl)) |
1440 | { | |
1441 | tree p1 = TYPE_ARG_TYPES (TREE_TYPE (function)); | |
1442 | tree p2 = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); | |
1443 | ||
1444 | /* Get rid of the this parameter on functions that become | |
e92cc029 | 1445 | static. */ |
8145f082 MS |
1446 | if (DECL_STATIC_FUNCTION_P (fndecl) |
1447 | && TREE_CODE (TREE_TYPE (function)) == METHOD_TYPE) | |
1448 | p1 = TREE_CHAIN (p1); | |
1449 | ||
3bfdc719 MM |
1450 | if (same_type_p (TREE_TYPE (TREE_TYPE (function)), |
1451 | TREE_TYPE (TREE_TYPE (fndecl))) | |
91063b51 | 1452 | && compparms (p1, p2) |
386b8a85 JM |
1453 | && (DECL_TEMPLATE_SPECIALIZATION (function) |
1454 | == DECL_TEMPLATE_SPECIALIZATION (fndecl)) | |
1455 | && (!DECL_TEMPLATE_SPECIALIZATION (function) | |
1456 | || (DECL_TI_TEMPLATE (function) | |
1457 | == DECL_TI_TEMPLATE (fndecl)))) | |
5566b478 | 1458 | return fndecl; |
8145f082 | 1459 | } |
8d08fdba MS |
1460 | } |
1461 | break; /* loser */ | |
1462 | } | |
1463 | } | |
1464 | } | |
1465 | ||
61a127b3 | 1466 | if (methods != end && *methods) |
f30432d7 MS |
1467 | { |
1468 | tree fndecl = *methods; | |
8251199e | 1469 | cp_error ("prototype for `%#D' does not match any in class `%T'", |
f30432d7 | 1470 | function, ctype); |
8251199e | 1471 | cp_error_at ("candidate%s: %+#D", OVL_NEXT (fndecl) ? "s are" : " is", |
2c73f9f5 ML |
1472 | OVL_CURRENT (fndecl)); |
1473 | while (fndecl = OVL_NEXT (fndecl), fndecl) | |
8251199e | 1474 | cp_error_at (" %#D", OVL_CURRENT(fndecl)); |
f30432d7 | 1475 | } |
8d08fdba MS |
1476 | else |
1477 | { | |
1478 | methods = 0; | |
ddaed37e JM |
1479 | if (TYPE_SIZE (ctype) == 0) |
1480 | incomplete_type_error (function, ctype); | |
1481 | else | |
1482 | cp_error ("no `%#D' member function declared in class `%T'", | |
1483 | function, ctype); | |
8d08fdba MS |
1484 | } |
1485 | ||
fc378698 | 1486 | /* If we did not find the method in the class, add it to avoid |
6b4b3deb MM |
1487 | spurious errors (unless the CTYPE is not yet defined, in which |
1488 | case we'll only confuse ourselves when the function is declared | |
1489 | properly within the class. */ | |
1490 | if (TYPE_SIZE (ctype)) | |
1491 | add_method (ctype, methods, function); | |
f30432d7 | 1492 | return NULL_TREE; |
8d08fdba MS |
1493 | } |
1494 | ||
fa8d6e85 MM |
1495 | /* We have just processed the DECL, which is a static data member. |
1496 | Its initializer, if present, is INIT. The ASMSPEC_TREE, if | |
1497 | present, is the assembly-language name for the data member. | |
1498 | NEED_POP and FLAGS are as for cp_finish_decl. */ | |
1499 | ||
1500 | void | |
1501 | finish_static_data_member_decl (decl, init, asmspec_tree, need_pop, flags) | |
1502 | tree decl; | |
1503 | tree init; | |
1504 | tree asmspec_tree; | |
1505 | int need_pop; | |
1506 | int flags; | |
1507 | { | |
9c0758dd | 1508 | const char *asmspec = 0; |
fa8d6e85 MM |
1509 | |
1510 | if (asmspec_tree) | |
1511 | asmspec = TREE_STRING_POINTER (asmspec_tree); | |
1512 | ||
1513 | my_friendly_assert (TREE_PUBLIC (decl), 0); | |
1514 | ||
1515 | /* We cannot call pushdecl here, because that would fill in the | |
1516 | decl of our TREE_CHAIN. Instead, we modify cp_finish_decl to do | |
1517 | the right thing, namely, to put this decl out straight away. */ | |
1518 | /* current_class_type can be NULL_TREE in case of error. */ | |
1519 | if (!asmspec && current_class_type) | |
1520 | { | |
1521 | DECL_INITIAL (decl) = error_mark_node; | |
1522 | DECL_ASSEMBLER_NAME (decl) | |
1523 | = build_static_name (current_class_type, DECL_NAME (decl)); | |
1524 | } | |
1525 | if (! processing_template_decl) | |
0aafb128 MM |
1526 | { |
1527 | if (!pending_statics) | |
1528 | VARRAY_TREE_INIT (pending_statics, 32, "pending_statics"); | |
1529 | ||
1530 | if (pending_statics_used == pending_statics->num_elements) | |
1531 | VARRAY_GROW (pending_statics, | |
1532 | 2 * pending_statics->num_elements); | |
1533 | VARRAY_TREE (pending_statics, pending_statics_used) = decl; | |
1534 | ++pending_statics_used; | |
1535 | } | |
1536 | ||
fa8d6e85 MM |
1537 | /* Static consts need not be initialized in the class definition. */ |
1538 | if (init != NULL_TREE && TYPE_NEEDS_CONSTRUCTING (TREE_TYPE (decl))) | |
1539 | { | |
1540 | static int explanation = 0; | |
1541 | ||
1542 | error ("initializer invalid for static member with constructor"); | |
1543 | if (explanation++ == 0) | |
1544 | error ("(you really want to initialize it separately)"); | |
1545 | init = 0; | |
1546 | } | |
1547 | /* Force the compiler to know when an uninitialized static const | |
1548 | member is being used. */ | |
1549 | if (CP_TYPE_CONST_P (TREE_TYPE (decl)) && init == 0) | |
1550 | TREE_USED (decl) = 1; | |
1551 | DECL_INITIAL (decl) = init; | |
1552 | DECL_IN_AGGR_P (decl) = 1; | |
1553 | DECL_CONTEXT (decl) = current_class_type; | |
1554 | DECL_CLASS_CONTEXT (decl) = current_class_type; | |
1555 | ||
1556 | cp_finish_decl (decl, init, asmspec_tree, need_pop, flags); | |
1557 | } | |
1558 | ||
8d08fdba MS |
1559 | /* Process the specs, declarator (NULL if omitted) and width (NULL if omitted) |
1560 | of a structure component, returning a FIELD_DECL node. | |
1561 | QUALS is a list of type qualifiers for this decl (such as for declaring | |
1562 | const member functions). | |
1563 | ||
1564 | This is done during the parsing of the struct declaration. | |
1565 | The FIELD_DECL nodes are chained together and the lot of them | |
1566 | are ultimately passed to `build_struct' to make the RECORD_TYPE node. | |
1567 | ||
1568 | C++: | |
1569 | ||
1570 | If class A defines that certain functions in class B are friends, then | |
1571 | the way I have set things up, it is B who is interested in permission | |
1572 | granted by A. However, it is in A's context that these declarations | |
1573 | are parsed. By returning a void_type_node, class A does not attempt | |
1574 | to incorporate the declarations of the friends within its structure. | |
1575 | ||
1576 | DO NOT MAKE ANY CHANGES TO THIS CODE WITHOUT MAKING CORRESPONDING | |
1577 | CHANGES TO CODE IN `start_method'. */ | |
1578 | ||
1579 | tree | |
c11b6f21 MS |
1580 | grokfield (declarator, declspecs, init, asmspec_tree, attrlist) |
1581 | tree declarator, declspecs, init, asmspec_tree, attrlist; | |
8d08fdba MS |
1582 | { |
1583 | register tree value; | |
9c0758dd | 1584 | const char *asmspec = 0; |
6060a796 | 1585 | int flags = LOOKUP_ONLYCONVERTING; |
8d08fdba MS |
1586 | |
1587 | /* Convert () initializers to = initializers. */ | |
1588 | if (init == NULL_TREE && declarator != NULL_TREE | |
1589 | && TREE_CODE (declarator) == CALL_EXPR | |
1590 | && TREE_OPERAND (declarator, 0) | |
1591 | && (TREE_CODE (TREE_OPERAND (declarator, 0)) == IDENTIFIER_NODE | |
1592 | || TREE_CODE (TREE_OPERAND (declarator, 0)) == SCOPE_REF) | |
1593 | && parmlist_is_exprlist (TREE_OPERAND (declarator, 1))) | |
1594 | { | |
1595 | init = TREE_OPERAND (declarator, 1); | |
1596 | declarator = TREE_OPERAND (declarator, 0); | |
6060a796 | 1597 | flags = 0; |
8d08fdba MS |
1598 | } |
1599 | ||
cffa8729 | 1600 | if (declspecs == NULL_TREE |
7fcdf4c2 MS |
1601 | && TREE_CODE (declarator) == SCOPE_REF |
1602 | && TREE_CODE (TREE_OPERAND (declarator, 1)) == IDENTIFIER_NODE) | |
cffa8729 MS |
1603 | { |
1604 | /* Access declaration */ | |
5566b478 MS |
1605 | if (! IS_AGGR_TYPE_CODE (TREE_CODE (TREE_OPERAND (declarator, 0)))) |
1606 | ; | |
1607 | else if (TREE_COMPLEXITY (declarator) == current_class_depth) | |
b74a0560 | 1608 | pop_nested_class (); |
cffa8729 MS |
1609 | return do_class_using_decl (declarator); |
1610 | } | |
1611 | ||
8d08fdba MS |
1612 | if (init |
1613 | && TREE_CODE (init) == TREE_LIST | |
1614 | && TREE_VALUE (init) == error_mark_node | |
1615 | && TREE_CHAIN (init) == NULL_TREE) | |
cffa8729 | 1616 | init = NULL_TREE; |
8d08fdba | 1617 | |
419c6212 | 1618 | value = grokdeclarator (declarator, declspecs, FIELD, init != 0, attrlist); |
6c30752f | 1619 | if (! value || value == error_mark_node) |
3ddfb0e6 MM |
1620 | /* friend or constructor went bad. */ |
1621 | return value; | |
8d08fdba MS |
1622 | |
1623 | /* Pass friendly classes back. */ | |
1624 | if (TREE_CODE (value) == VOID_TYPE) | |
1625 | return void_type_node; | |
1626 | ||
1627 | if (DECL_NAME (value) != NULL_TREE | |
1628 | && IDENTIFIER_POINTER (DECL_NAME (value))[0] == '_' | |
1629 | && ! strcmp (IDENTIFIER_POINTER (DECL_NAME (value)), "_vptr")) | |
8251199e | 1630 | cp_error ("member `%D' conflicts with virtual function table field name", |
3c215895 | 1631 | value); |
8d08fdba MS |
1632 | |
1633 | /* Stash away type declarations. */ | |
1634 | if (TREE_CODE (value) == TYPE_DECL) | |
1635 | { | |
1636 | DECL_NONLOCAL (value) = 1; | |
700f8a87 MS |
1637 | DECL_CONTEXT (value) = current_class_type; |
1638 | DECL_CLASS_CONTEXT (value) = current_class_type; | |
8145f082 | 1639 | |
61cd1234 MM |
1640 | /* Now that we've updated the context, we need to remangle the |
1641 | name for this TYPE_DECL. */ | |
1642 | DECL_ASSEMBLER_NAME (value) = DECL_NAME (value); | |
35fce3ce MM |
1643 | if (!uses_template_parms (value)) |
1644 | DECL_ASSEMBLER_NAME (value) = | |
1645 | get_identifier (build_overload_name (TREE_TYPE (value), 1, 1)); | |
61cd1234 | 1646 | |
8d08fdba MS |
1647 | return value; |
1648 | } | |
1649 | ||
1650 | if (IS_SIGNATURE (current_class_type) | |
1651 | && TREE_CODE (value) != FUNCTION_DECL) | |
1652 | { | |
8251199e | 1653 | error ("field declaration not allowed in signature"); |
8d08fdba MS |
1654 | return void_type_node; |
1655 | } | |
1656 | ||
1657 | if (DECL_IN_AGGR_P (value)) | |
1658 | { | |
6b4b3deb MM |
1659 | cp_error ("`%D' is already defined in `%T'", value, |
1660 | DECL_CONTEXT (value)); | |
8d08fdba MS |
1661 | return void_type_node; |
1662 | } | |
1663 | ||
8d08fdba MS |
1664 | if (asmspec_tree) |
1665 | asmspec = TREE_STRING_POINTER (asmspec_tree); | |
1666 | ||
1667 | if (init) | |
1668 | { | |
1669 | if (IS_SIGNATURE (current_class_type) | |
1670 | && TREE_CODE (value) == FUNCTION_DECL) | |
1671 | { | |
8251199e | 1672 | error ("function declarations cannot have initializers in signature"); |
8d08fdba MS |
1673 | init = NULL_TREE; |
1674 | } | |
1675 | else if (TREE_CODE (value) == FUNCTION_DECL) | |
1676 | { | |
1677 | grok_function_init (value, init); | |
1678 | init = NULL_TREE; | |
1679 | } | |
5b605f68 | 1680 | else if (pedantic && TREE_CODE (value) != VAR_DECL) |
a0a33927 MS |
1681 | /* Already complained in grokdeclarator. */ |
1682 | init = NULL_TREE; | |
8d08fdba MS |
1683 | else |
1684 | { | |
a0a33927 MS |
1685 | /* We allow initializers to become parameters to base |
1686 | initializers. */ | |
8d08fdba MS |
1687 | if (TREE_CODE (init) == TREE_LIST) |
1688 | { | |
1689 | if (TREE_CHAIN (init) == NULL_TREE) | |
1690 | init = TREE_VALUE (init); | |
1691 | else | |
1692 | init = digest_init (TREE_TYPE (value), init, (tree *)0); | |
1693 | } | |
1694 | ||
1695 | if (TREE_CODE (init) == CONST_DECL) | |
1696 | init = DECL_INITIAL (init); | |
1697 | else if (TREE_READONLY_DECL_P (init)) | |
1698 | init = decl_constant_value (init); | |
1699 | else if (TREE_CODE (init) == CONSTRUCTOR) | |
1700 | init = digest_init (TREE_TYPE (value), init, (tree *)0); | |
1701 | my_friendly_assert (TREE_PERMANENT (init), 192); | |
1702 | if (init == error_mark_node) | |
1703 | /* We must make this look different than `error_mark_node' | |
1704 | because `decl_const_value' would mis-interpret it | |
1705 | as only meaning that this VAR_DECL is defined. */ | |
1706 | init = build1 (NOP_EXPR, TREE_TYPE (value), init); | |
5156628f | 1707 | else if (processing_template_decl) |
5566b478 | 1708 | ; |
8d08fdba MS |
1709 | else if (! TREE_CONSTANT (init)) |
1710 | { | |
1711 | /* We can allow references to things that are effectively | |
1712 | static, since references are initialized with the address. */ | |
1713 | if (TREE_CODE (TREE_TYPE (value)) != REFERENCE_TYPE | |
1714 | || (TREE_STATIC (init) == 0 | |
1715 | && (TREE_CODE_CLASS (TREE_CODE (init)) != 'd' | |
1716 | || DECL_EXTERNAL (init) == 0))) | |
1717 | { | |
8251199e | 1718 | error ("field initializer is not constant"); |
8d08fdba MS |
1719 | init = error_mark_node; |
1720 | } | |
1721 | } | |
1722 | } | |
1723 | } | |
1724 | ||
b3417a04 | 1725 | /* The corresponding pop_obstacks is in cp_finish_decl. */ |
8d08fdba MS |
1726 | push_obstacks_nochange (); |
1727 | ||
5156628f | 1728 | if (processing_template_decl && ! current_function_decl |
5566b478 | 1729 | && (TREE_CODE (value) == VAR_DECL || TREE_CODE (value) == FUNCTION_DECL)) |
3ac3d9ea | 1730 | value = push_template_decl (value); |
5566b478 | 1731 | |
45537677 MS |
1732 | if (attrlist) |
1733 | cplus_decl_attributes (value, TREE_PURPOSE (attrlist), | |
1734 | TREE_VALUE (attrlist)); | |
1735 | ||
8d08fdba MS |
1736 | if (TREE_CODE (value) == VAR_DECL) |
1737 | { | |
fa8d6e85 MM |
1738 | finish_static_data_member_decl (value, init, asmspec_tree, |
1739 | /*need_pop=*/1, flags); | |
8d08fdba MS |
1740 | return value; |
1741 | } | |
1742 | if (TREE_CODE (value) == FIELD_DECL) | |
1743 | { | |
1744 | if (asmspec) | |
6060a796 MS |
1745 | { |
1746 | /* This must override the asm specifier which was placed | |
1747 | by grokclassfn. Lay this out fresh. */ | |
1748 | DECL_RTL (value) = NULL_RTX; | |
1749 | DECL_ASSEMBLER_NAME (value) = get_identifier (asmspec); | |
1750 | } | |
8d08fdba MS |
1751 | if (DECL_INITIAL (value) == error_mark_node) |
1752 | init = error_mark_node; | |
b3417a04 | 1753 | cp_finish_decl (value, init, asmspec_tree, 1, flags); |
8d08fdba MS |
1754 | DECL_INITIAL (value) = init; |
1755 | DECL_IN_AGGR_P (value) = 1; | |
1756 | return value; | |
1757 | } | |
1758 | if (TREE_CODE (value) == FUNCTION_DECL) | |
1759 | { | |
6060a796 MS |
1760 | if (asmspec) |
1761 | { | |
1762 | /* This must override the asm specifier which was placed | |
1763 | by grokclassfn. Lay this out fresh. */ | |
1764 | DECL_RTL (value) = NULL_RTX; | |
1765 | DECL_ASSEMBLER_NAME (value) = get_identifier (asmspec); | |
1766 | } | |
b3417a04 | 1767 | cp_finish_decl (value, init, asmspec_tree, 1, flags); |
8d08fdba MS |
1768 | |
1769 | /* Pass friends back this way. */ | |
1770 | if (DECL_FRIEND_P (value)) | |
1771 | return void_type_node; | |
1772 | ||
f376e137 | 1773 | #if 0 /* Just because a fn is declared doesn't mean we'll try to define it. */ |
a0a33927 | 1774 | if (current_function_decl && ! IS_SIGNATURE (current_class_type)) |
8251199e | 1775 | cp_error ("method `%#D' of local class must be defined in class body", |
7177d104 | 1776 | value); |
f376e137 | 1777 | #endif |
7177d104 | 1778 | |
8d08fdba MS |
1779 | DECL_IN_AGGR_P (value) = 1; |
1780 | return value; | |
1781 | } | |
1782 | my_friendly_abort (21); | |
1783 | /* NOTREACHED */ | |
1784 | return NULL_TREE; | |
1785 | } | |
1786 | ||
1787 | /* Like `grokfield', but for bitfields. | |
1788 | WIDTH is non-NULL for bit fields only, and is an INTEGER_CST node. */ | |
1789 | ||
1790 | tree | |
1791 | grokbitfield (declarator, declspecs, width) | |
1792 | tree declarator, declspecs, width; | |
1793 | { | |
f30432d7 | 1794 | register tree value = grokdeclarator (declarator, declspecs, BITFIELD, |
c11b6f21 | 1795 | 0, NULL_TREE); |
8d08fdba MS |
1796 | |
1797 | if (! value) return NULL_TREE; /* friends went bad. */ | |
1798 | ||
1799 | /* Pass friendly classes back. */ | |
1800 | if (TREE_CODE (value) == VOID_TYPE) | |
1801 | return void_type_node; | |
1802 | ||
1803 | if (TREE_CODE (value) == TYPE_DECL) | |
1804 | { | |
8251199e | 1805 | cp_error ("cannot declare `%D' to be a bitfield type", value); |
8d08fdba MS |
1806 | return NULL_TREE; |
1807 | } | |
1808 | ||
ae58fa02 MM |
1809 | /* Usually, finish_struct_1 catches bitifields with invalid types. |
1810 | But, in the case of bitfields with function type, we confuse | |
1811 | ourselves into thinking they are member functions, so we must | |
1812 | check here. */ | |
1813 | if (TREE_CODE (value) == FUNCTION_DECL) | |
1814 | { | |
8251199e | 1815 | cp_error ("cannot declare bitfield `%D' with funcion type", |
ae58fa02 MM |
1816 | DECL_NAME (value)); |
1817 | return NULL_TREE; | |
1818 | } | |
1819 | ||
8d08fdba MS |
1820 | if (IS_SIGNATURE (current_class_type)) |
1821 | { | |
8251199e | 1822 | error ("field declaration not allowed in signature"); |
8d08fdba MS |
1823 | return void_type_node; |
1824 | } | |
1825 | ||
1826 | if (DECL_IN_AGGR_P (value)) | |
1827 | { | |
8251199e | 1828 | cp_error ("`%D' is already defined in the class %T", value, |
8d08fdba MS |
1829 | DECL_CONTEXT (value)); |
1830 | return void_type_node; | |
1831 | } | |
1832 | ||
1833 | GNU_xref_member (current_class_name, value); | |
1834 | ||
1835 | if (TREE_STATIC (value)) | |
1836 | { | |
8251199e | 1837 | cp_error ("static member `%D' cannot be a bitfield", value); |
8d08fdba MS |
1838 | return NULL_TREE; |
1839 | } | |
b3417a04 | 1840 | cp_finish_decl (value, NULL_TREE, NULL_TREE, 0, 0); |
8d08fdba MS |
1841 | |
1842 | if (width != error_mark_node) | |
1843 | { | |
5566b478 MS |
1844 | constant_expression_warning (width); |
1845 | DECL_INITIAL (value) = width; | |
162bc98d | 1846 | SET_DECL_C_BIT_FIELD (value); |
8d08fdba MS |
1847 | } |
1848 | ||
1849 | DECL_IN_AGGR_P (value) = 1; | |
1850 | return value; | |
1851 | } | |
1852 | ||
8d08fdba | 1853 | tree |
51c184be MS |
1854 | grokoptypename (declspecs, declarator) |
1855 | tree declspecs, declarator; | |
8d08fdba | 1856 | { |
c11b6f21 | 1857 | tree t = grokdeclarator (declarator, declspecs, TYPENAME, 0, NULL_TREE); |
51c184be | 1858 | return build_typename_overload (t); |
8d08fdba MS |
1859 | } |
1860 | ||
1861 | /* When a function is declared with an initializer, | |
1862 | do the right thing. Currently, there are two possibilities: | |
1863 | ||
1864 | class B | |
1865 | { | |
1866 | public: | |
1867 | // initialization possibility #1. | |
1868 | virtual void f () = 0; | |
1869 | int g (); | |
1870 | }; | |
1871 | ||
1872 | class D1 : B | |
1873 | { | |
1874 | public: | |
1875 | int d1; | |
1876 | // error, no f (); | |
1877 | }; | |
1878 | ||
1879 | class D2 : B | |
1880 | { | |
1881 | public: | |
1882 | int d2; | |
1883 | void f (); | |
1884 | }; | |
1885 | ||
1886 | class D3 : B | |
1887 | { | |
1888 | public: | |
1889 | int d3; | |
1890 | // initialization possibility #2 | |
1891 | void f () = B::f; | |
1892 | }; | |
1893 | ||
1894 | */ | |
1895 | ||
f0e01782 MS |
1896 | int |
1897 | copy_assignment_arg_p (parmtype, virtualp) | |
1898 | tree parmtype; | |
b370501f | 1899 | int virtualp ATTRIBUTE_UNUSED; |
f0e01782 | 1900 | { |
691c003d MS |
1901 | if (current_class_type == NULL_TREE) |
1902 | return 0; | |
1903 | ||
f0e01782 MS |
1904 | if (TREE_CODE (parmtype) == REFERENCE_TYPE) |
1905 | parmtype = TREE_TYPE (parmtype); | |
1906 | ||
1907 | if ((TYPE_MAIN_VARIANT (parmtype) == current_class_type) | |
824b9a4c MS |
1908 | #if 0 |
1909 | /* Non-standard hack to support old Booch components. */ | |
1910 | || (! virtualp && DERIVED_FROM_P (parmtype, current_class_type)) | |
1911 | #endif | |
1912 | ) | |
f0e01782 MS |
1913 | return 1; |
1914 | ||
1915 | return 0; | |
1916 | } | |
1917 | ||
8d08fdba MS |
1918 | static void |
1919 | grok_function_init (decl, init) | |
1920 | tree decl; | |
1921 | tree init; | |
1922 | { | |
1923 | /* An initializer for a function tells how this function should | |
1924 | be inherited. */ | |
1925 | tree type = TREE_TYPE (decl); | |
8d08fdba MS |
1926 | |
1927 | if (TREE_CODE (type) == FUNCTION_TYPE) | |
8251199e | 1928 | cp_error ("initializer specified for non-member function `%D'", decl); |
cffa8729 MS |
1929 | #if 0 |
1930 | /* We'll check for this in finish_struct_1. */ | |
8d08fdba | 1931 | else if (DECL_VINDEX (decl) == NULL_TREE) |
8251199e | 1932 | cp_error ("initializer specified for non-virtual method `%D'", decl); |
cffa8729 | 1933 | #endif |
8d08fdba MS |
1934 | else if (integer_zerop (init)) |
1935 | { | |
8926095f | 1936 | #if 0 |
8d08fdba MS |
1937 | /* Mark this function as being "defined". */ |
1938 | DECL_INITIAL (decl) = error_mark_node; | |
e92cc029 | 1939 | /* pure virtual destructors must be defined. */ |
8926095f MS |
1940 | /* pure virtual needs to be defined (as abort) only when put in |
1941 | vtbl. For wellformed call, it should be itself. pr4737 */ | |
8d08fdba MS |
1942 | if (!DESTRUCTOR_NAME_P (DECL_ASSEMBLER_NAME (decl))) |
1943 | { | |
8926095f | 1944 | extern tree abort_fndecl; |
8d08fdba MS |
1945 | /* Give this node rtl from `abort'. */ |
1946 | DECL_RTL (decl) = DECL_RTL (abort_fndecl); | |
1947 | } | |
8926095f | 1948 | #endif |
8d08fdba | 1949 | DECL_ABSTRACT_VIRTUAL_P (decl) = 1; |
f0e01782 MS |
1950 | if (DECL_NAME (decl) == ansi_opname [(int) MODIFY_EXPR]) |
1951 | { | |
1952 | tree parmtype | |
1953 | = TREE_VALUE (TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (decl)))); | |
1954 | ||
1955 | if (copy_assignment_arg_p (parmtype, 1)) | |
1956 | TYPE_HAS_ABSTRACT_ASSIGN_REF (current_class_type) = 1; | |
1957 | } | |
8d08fdba | 1958 | } |
8d08fdba | 1959 | else |
8251199e | 1960 | cp_error ("invalid initializer for virtual method `%D'", decl); |
8d08fdba MS |
1961 | } |
1962 | \f | |
28cbf42c MS |
1963 | void |
1964 | cplus_decl_attributes (decl, attributes, prefix_attributes) | |
f6abb50a | 1965 | tree decl, attributes, prefix_attributes; |
8d08fdba | 1966 | { |
e8abc66f MS |
1967 | if (decl == NULL_TREE || decl == void_type_node) |
1968 | return; | |
1969 | ||
1970 | if (TREE_CODE (decl) == TEMPLATE_DECL) | |
1971 | decl = DECL_TEMPLATE_RESULT (decl); | |
1972 | ||
1973 | decl_attributes (decl, attributes, prefix_attributes); | |
863adfc0 MS |
1974 | |
1975 | if (TREE_CODE (decl) == TYPE_DECL) | |
1976 | SET_IDENTIFIER_TYPE_VALUE (DECL_NAME (decl), TREE_TYPE (decl)); | |
8d08fdba MS |
1977 | } |
1978 | \f | |
1979 | /* CONSTRUCTOR_NAME: | |
1980 | Return the name for the constructor (or destructor) for the | |
1981 | specified class. Argument can be RECORD_TYPE, TYPE_DECL, or | |
1982 | IDENTIFIER_NODE. When given a template, this routine doesn't | |
1983 | lose the specialization. */ | |
e92cc029 | 1984 | |
8d08fdba MS |
1985 | tree |
1986 | constructor_name_full (thing) | |
1987 | tree thing; | |
1988 | { | |
73b0fce8 | 1989 | if (TREE_CODE (thing) == TEMPLATE_TYPE_PARM |
97e7cbe4 JM |
1990 | || TREE_CODE (thing) == TEMPLATE_TEMPLATE_PARM |
1991 | || TREE_CODE (thing) == TYPENAME_TYPE) | |
be99da77 MS |
1992 | thing = TYPE_NAME (thing); |
1993 | else if (IS_AGGR_TYPE_CODE (TREE_CODE (thing))) | |
8d08fdba MS |
1994 | { |
1995 | if (TYPE_WAS_ANONYMOUS (thing) && TYPE_HAS_CONSTRUCTOR (thing)) | |
42c7b807 | 1996 | thing = DECL_NAME (OVL_CURRENT (TREE_VEC_ELT (CLASSTYPE_METHOD_VEC (thing), 0))); |
8d08fdba MS |
1997 | else |
1998 | thing = TYPE_NAME (thing); | |
1999 | } | |
2000 | if (TREE_CODE (thing) == TYPE_DECL | |
2001 | || (TREE_CODE (thing) == TEMPLATE_DECL | |
5566b478 | 2002 | && TREE_CODE (DECL_TEMPLATE_RESULT (thing)) == TYPE_DECL)) |
8d08fdba MS |
2003 | thing = DECL_NAME (thing); |
2004 | my_friendly_assert (TREE_CODE (thing) == IDENTIFIER_NODE, 197); | |
2005 | return thing; | |
2006 | } | |
2007 | ||
2008 | /* CONSTRUCTOR_NAME: | |
2009 | Return the name for the constructor (or destructor) for the | |
2010 | specified class. Argument can be RECORD_TYPE, TYPE_DECL, or | |
2011 | IDENTIFIER_NODE. When given a template, return the plain | |
2012 | unspecialized name. */ | |
e92cc029 | 2013 | |
8d08fdba MS |
2014 | tree |
2015 | constructor_name (thing) | |
2016 | tree thing; | |
2017 | { | |
2018 | tree t; | |
2019 | thing = constructor_name_full (thing); | |
2020 | t = IDENTIFIER_TEMPLATE (thing); | |
2021 | if (!t) | |
2022 | return thing; | |
5566b478 | 2023 | return t; |
8d08fdba MS |
2024 | } |
2025 | \f | |
2026 | /* Cache the value of this class's main virtual function table pointer | |
2027 | in a register variable. This will save one indirection if a | |
2028 | more than one virtual function call is made this function. */ | |
e92cc029 | 2029 | |
8d08fdba MS |
2030 | void |
2031 | setup_vtbl_ptr () | |
2032 | { | |
f30432d7 | 2033 | extern tree base_init_expr; |
8d08fdba | 2034 | |
a9aedbc2 | 2035 | if (base_init_expr == 0 |
8d08fdba | 2036 | && DECL_CONSTRUCTOR_P (current_function_decl)) |
5566b478 | 2037 | { |
5156628f | 2038 | if (processing_template_decl) |
5566b478 MS |
2039 | add_tree (build_min_nt |
2040 | (CTOR_INITIALIZER, | |
2041 | current_member_init_list, current_base_init_list)); | |
2042 | else | |
2043 | emit_base_init (current_class_type, 0); | |
2044 | } | |
8d08fdba MS |
2045 | } |
2046 | ||
2047 | /* Record the existence of an addressable inline function. */ | |
e92cc029 | 2048 | |
8d08fdba MS |
2049 | void |
2050 | mark_inline_for_output (decl) | |
2051 | tree decl; | |
2052 | { | |
6060a796 | 2053 | decl = DECL_MAIN_VARIANT (decl); |
8926095f MS |
2054 | if (DECL_SAVED_INLINE (decl)) |
2055 | return; | |
6060a796 | 2056 | my_friendly_assert (TREE_PERMANENT (decl), 363); |
8926095f | 2057 | DECL_SAVED_INLINE (decl) = 1; |
0aafb128 MM |
2058 | if (!saved_inlines) |
2059 | VARRAY_TREE_INIT (saved_inlines, 32, "saved_inlines"); | |
2060 | ||
2061 | if (saved_inlines_used == saved_inlines->num_elements) | |
2062 | VARRAY_GROW (saved_inlines, | |
2063 | 2 * saved_inlines->num_elements); | |
2064 | VARRAY_TREE (saved_inlines, saved_inlines_used) = decl; | |
2065 | ++saved_inlines_used; | |
8d08fdba MS |
2066 | } |
2067 | ||
2068 | void | |
2069 | clear_temp_name () | |
2070 | { | |
2071 | temp_name_counter = 0; | |
2072 | } | |
2073 | ||
2074 | /* Hand off a unique name which can be used for variable we don't really | |
2075 | want to know about anyway, for example, the anonymous variables which | |
2076 | are needed to make references work. Declare this thing so we can use it. | |
2077 | The variable created will be of type TYPE. | |
2078 | ||
2079 | STATICP is nonzero if this variable should be static. */ | |
2080 | ||
2081 | tree | |
2082 | get_temp_name (type, staticp) | |
2083 | tree type; | |
2084 | int staticp; | |
2085 | { | |
2086 | char buf[sizeof (AUTO_TEMP_FORMAT) + 20]; | |
2087 | tree decl; | |
a9aedbc2 | 2088 | int toplev = toplevel_bindings_p (); |
8d08fdba MS |
2089 | |
2090 | push_obstacks_nochange (); | |
2091 | if (toplev || staticp) | |
2092 | { | |
2093 | end_temporary_allocation (); | |
2094 | sprintf (buf, AUTO_TEMP_FORMAT, global_temp_name_counter++); | |
2095 | decl = pushdecl_top_level (build_decl (VAR_DECL, get_identifier (buf), type)); | |
2096 | } | |
2097 | else | |
2098 | { | |
2099 | sprintf (buf, AUTO_TEMP_FORMAT, temp_name_counter++); | |
2100 | decl = pushdecl (build_decl (VAR_DECL, get_identifier (buf), type)); | |
2101 | } | |
2102 | TREE_USED (decl) = 1; | |
2103 | TREE_STATIC (decl) = staticp; | |
fc378698 | 2104 | DECL_ARTIFICIAL (decl) = 1; |
8d08fdba MS |
2105 | |
2106 | /* If this is a local variable, then lay out its rtl now. | |
2107 | Otherwise, callers of this function are responsible for dealing | |
2108 | with this variable's rtl. */ | |
2109 | if (! toplev) | |
2110 | { | |
2111 | expand_decl (decl); | |
2112 | expand_decl_init (decl); | |
2113 | } | |
2114 | pop_obstacks (); | |
2115 | ||
2116 | return decl; | |
2117 | } | |
2118 | ||
2119 | /* Get a variable which we can use for multiple assignments. | |
2120 | It is not entered into current_binding_level, because | |
2121 | that breaks things when it comes time to do final cleanups | |
2122 | (which take place "outside" the binding contour of the function). */ | |
e92cc029 | 2123 | |
8d08fdba MS |
2124 | tree |
2125 | get_temp_regvar (type, init) | |
2126 | tree type, init; | |
2127 | { | |
8d08fdba MS |
2128 | tree decl; |
2129 | ||
a0d5fba7 | 2130 | decl = build_decl (VAR_DECL, NULL_TREE, type); |
8d08fdba MS |
2131 | TREE_USED (decl) = 1; |
2132 | DECL_REGISTER (decl) = 1; | |
a0d5fba7 | 2133 | DECL_ARTIFICIAL (decl) = 1; |
8d08fdba | 2134 | |
a0d5fba7 | 2135 | DECL_RTL (decl) = assign_temp (type, 2, 0, 1); |
8d08fdba MS |
2136 | /* We can expand these without fear, since they cannot need |
2137 | constructors or destructors. */ | |
a0d5fba7 JM |
2138 | expand_expr (build_modify_expr (decl, INIT_EXPR, init), |
2139 | NULL_RTX, VOIDmode, 0); | |
8d08fdba | 2140 | |
8d08fdba MS |
2141 | return decl; |
2142 | } | |
2143 | ||
cb96daa2 MM |
2144 | /* Hunts through the global anonymous union ANON_DECL, building |
2145 | appropriate VAR_DECLs. Stores cleanups on the list of ELEMS, and | |
2146 | returns a VAR_DECL whose size is the same as the size of the | |
2147 | ANON_DECL, if one is available. */ | |
ce1b9eb9 | 2148 | |
e9659ab0 | 2149 | static tree |
cb96daa2 | 2150 | build_anon_union_vars (anon_decl, elems, static_p, external_p) |
ce1b9eb9 | 2151 | tree anon_decl; |
cb96daa2 MM |
2152 | tree* elems; |
2153 | int static_p; | |
2154 | int external_p; | |
ce1b9eb9 | 2155 | { |
cb96daa2 | 2156 | tree type = TREE_TYPE (anon_decl); |
ce1b9eb9 | 2157 | tree main_decl = NULL_TREE; |
cb96daa2 | 2158 | tree field; |
ce1b9eb9 | 2159 | |
6bdb8141 JM |
2160 | /* Rather than write the code to handle the non-union case, |
2161 | just give an error. */ | |
2162 | if (TREE_CODE (type) != UNION_TYPE) | |
2163 | error ("anonymous struct not inside named type"); | |
2164 | ||
cb96daa2 | 2165 | for (field = TYPE_FIELDS (type); |
ce1b9eb9 MM |
2166 | field != NULL_TREE; |
2167 | field = TREE_CHAIN (field)) | |
2168 | { | |
cb96daa2 | 2169 | tree decl; |
8ebeee52 JM |
2170 | |
2171 | if (DECL_ARTIFICIAL (field)) | |
ce1b9eb9 | 2172 | continue; |
8ebeee52 JM |
2173 | if (TREE_CODE (field) != FIELD_DECL) |
2174 | { | |
2175 | cp_pedwarn_at ("`%#D' invalid; an anonymous union can only have non-static data members", | |
2176 | field); | |
2177 | continue; | |
2178 | } | |
ce1b9eb9 | 2179 | |
cb96daa2 | 2180 | if (TREE_PRIVATE (field)) |
8251199e | 2181 | cp_pedwarn_at ("private member `%#D' in anonymous union", field); |
cb96daa2 | 2182 | else if (TREE_PROTECTED (field)) |
8251199e | 2183 | cp_pedwarn_at ("protected member `%#D' in anonymous union", field); |
cb96daa2 MM |
2184 | |
2185 | if (DECL_NAME (field) == NULL_TREE | |
6bdb8141 | 2186 | && ANON_AGGR_TYPE_P (TREE_TYPE (field))) |
67ffc812 MM |
2187 | { |
2188 | decl = build_anon_union_vars (field, elems, static_p, external_p); | |
2189 | if (!decl) | |
2190 | continue; | |
2191 | } | |
18141e4c JM |
2192 | else if (DECL_NAME (field) == NULL_TREE) |
2193 | continue; | |
cb96daa2 MM |
2194 | else |
2195 | { | |
2196 | decl = build_decl (VAR_DECL, DECL_NAME (field), TREE_TYPE (field)); | |
2197 | /* tell `pushdecl' that this is not tentative. */ | |
2198 | DECL_INITIAL (decl) = error_mark_node; | |
2199 | TREE_PUBLIC (decl) = 0; | |
2200 | TREE_STATIC (decl) = static_p; | |
2201 | DECL_EXTERNAL (decl) = external_p; | |
2202 | decl = pushdecl (decl); | |
2203 | DECL_INITIAL (decl) = NULL_TREE; | |
2204 | } | |
2205 | ||
ce1b9eb9 MM |
2206 | /* Only write out one anon union element--choose the one that |
2207 | can hold them all. */ | |
2208 | if (main_decl == NULL_TREE | |
cb96daa2 MM |
2209 | && simple_cst_equal (DECL_SIZE (decl), |
2210 | DECL_SIZE (anon_decl)) == 1) | |
2211 | main_decl = decl; | |
2212 | else | |
ce1b9eb9 MM |
2213 | /* ??? This causes there to be no debug info written out |
2214 | about this decl. */ | |
cb96daa2 MM |
2215 | TREE_ASM_WRITTEN (decl) = 1; |
2216 | ||
2217 | if (DECL_NAME (field) == NULL_TREE | |
6bdb8141 | 2218 | && ANON_AGGR_TYPE_P (TREE_TYPE (field))) |
cb96daa2 MM |
2219 | /* The remainder of the processing was already done in the |
2220 | recursive call. */ | |
2221 | continue; | |
ce1b9eb9 | 2222 | |
cb96daa2 MM |
2223 | /* If there's a cleanup to do, it belongs in the |
2224 | TREE_PURPOSE of the following TREE_LIST. */ | |
2225 | *elems = scratch_tree_cons (NULL_TREE, decl, *elems); | |
2226 | TREE_TYPE (*elems) = type; | |
2227 | } | |
2228 | ||
ce1b9eb9 MM |
2229 | return main_decl; |
2230 | } | |
2231 | ||
8d08fdba MS |
2232 | /* Finish off the processing of a UNION_TYPE structure. |
2233 | If there are static members, then all members are | |
2234 | static, and must be laid out together. If the | |
2235 | union is an anonymous union, we arrange for that | |
2236 | as well. PUBLIC_P is nonzero if this union is | |
2237 | not declared static. */ | |
e92cc029 | 2238 | |
8d08fdba MS |
2239 | void |
2240 | finish_anon_union (anon_union_decl) | |
2241 | tree anon_union_decl; | |
2242 | { | |
2243 | tree type = TREE_TYPE (anon_union_decl); | |
8d08fdba | 2244 | tree elems = NULL_TREE; |
cb96daa2 | 2245 | tree main_decl; |
8d08fdba MS |
2246 | int public_p = TREE_PUBLIC (anon_union_decl); |
2247 | int static_p = TREE_STATIC (anon_union_decl); | |
2248 | int external_p = DECL_EXTERNAL (anon_union_decl); | |
2249 | ||
cb96daa2 | 2250 | if (TYPE_FIELDS (type) == NULL_TREE) |
8d08fdba MS |
2251 | return; |
2252 | ||
2253 | if (public_p) | |
2254 | { | |
8251199e | 2255 | error ("global anonymous unions must be declared static"); |
8d08fdba MS |
2256 | return; |
2257 | } | |
2258 | ||
cb96daa2 MM |
2259 | main_decl = build_anon_union_vars (anon_union_decl, &elems, |
2260 | static_p, external_p); | |
ce1b9eb9 | 2261 | |
18141e4c JM |
2262 | if (main_decl == NULL_TREE) |
2263 | { | |
2264 | warning ("anonymous union with no members"); | |
2265 | return; | |
2266 | } | |
2267 | ||
8d08fdba MS |
2268 | if (static_p) |
2269 | { | |
18141e4c JM |
2270 | make_decl_rtl (main_decl, 0, toplevel_bindings_p ()); |
2271 | DECL_RTL (anon_union_decl) = DECL_RTL (main_decl); | |
8d08fdba MS |
2272 | } |
2273 | ||
2274 | /* The following call assumes that there are never any cleanups | |
2275 | for anonymous unions--a reasonable assumption. */ | |
2276 | expand_anon_union_decl (anon_union_decl, NULL_TREE, elems); | |
8d08fdba MS |
2277 | } |
2278 | ||
8d08fdba MS |
2279 | /* Finish processing a builtin type TYPE. It's name is NAME, |
2280 | its fields are in the array FIELDS. LEN is the number of elements | |
2281 | in FIELDS minus one, or put another way, it is the maximum subscript | |
2282 | used in FIELDS. | |
2283 | ||
2284 | It is given the same alignment as ALIGN_TYPE. */ | |
e92cc029 | 2285 | |
8d08fdba MS |
2286 | void |
2287 | finish_builtin_type (type, name, fields, len, align_type) | |
2288 | tree type; | |
d8e178a0 | 2289 | const char *name; |
8d08fdba MS |
2290 | tree fields[]; |
2291 | int len; | |
2292 | tree align_type; | |
2293 | { | |
2294 | register int i; | |
2295 | ||
2296 | TYPE_FIELDS (type) = fields[0]; | |
2297 | for (i = 0; i < len; i++) | |
2298 | { | |
2299 | layout_type (TREE_TYPE (fields[i])); | |
2300 | DECL_FIELD_CONTEXT (fields[i]) = type; | |
2301 | TREE_CHAIN (fields[i]) = fields[i+1]; | |
2302 | } | |
2303 | DECL_FIELD_CONTEXT (fields[i]) = type; | |
2304 | DECL_CLASS_CONTEXT (fields[i]) = type; | |
2305 | TYPE_ALIGN (type) = TYPE_ALIGN (align_type); | |
2306 | layout_type (type); | |
2307 | #if 0 /* not yet, should get fixed properly later */ | |
2308 | TYPE_NAME (type) = make_type_decl (get_identifier (name), type); | |
2309 | #else | |
2310 | TYPE_NAME (type) = build_decl (TYPE_DECL, get_identifier (name), type); | |
2311 | #endif | |
d2e5ee5c | 2312 | TYPE_STUB_DECL (type) = TYPE_NAME (type); |
8d08fdba MS |
2313 | layout_decl (TYPE_NAME (type), 0); |
2314 | } | |
2315 | \f | |
2316 | /* Auxiliary functions to make type signatures for | |
2317 | `operator new' and `operator delete' correspond to | |
2318 | what compiler will be expecting. */ | |
2319 | ||
8d08fdba MS |
2320 | tree |
2321 | coerce_new_type (type) | |
2322 | tree type; | |
2323 | { | |
2324 | int e1 = 0, e2 = 0; | |
2325 | ||
2326 | if (TREE_CODE (type) == METHOD_TYPE) | |
2327 | type = build_function_type (TREE_TYPE (type), TREE_CHAIN (TYPE_ARG_TYPES (type))); | |
ee996e9e | 2328 | if (! same_type_p (TREE_TYPE (type), ptr_type_node)) |
8251199e | 2329 | e1 = 1, error ("`operator new' must return type `void *'"); |
8d08fdba MS |
2330 | |
2331 | /* Technically the type must be `size_t', but we may not know | |
2332 | what that is. */ | |
2333 | if (TYPE_ARG_TYPES (type) == NULL_TREE) | |
8251199e | 2334 | e1 = 1, error ("`operator new' takes type `size_t' parameter"); |
ee996e9e | 2335 | else if (! same_type_p (TREE_VALUE (TYPE_ARG_TYPES (type)), sizetype)) |
8251199e | 2336 | e2 = 1, error ("`operator new' takes type `size_t' as first parameter"); |
8d08fdba MS |
2337 | if (e2) |
2338 | type = build_function_type (ptr_type_node, tree_cons (NULL_TREE, sizetype, TREE_CHAIN (TYPE_ARG_TYPES (type)))); | |
2339 | else if (e1) | |
2340 | type = build_function_type (ptr_type_node, TYPE_ARG_TYPES (type)); | |
2341 | return type; | |
2342 | } | |
2343 | ||
2344 | tree | |
2345 | coerce_delete_type (type) | |
2346 | tree type; | |
2347 | { | |
a703fb38 KG |
2348 | int e1 = 0, e2 = 0; |
2349 | #if 0 | |
2350 | e3 = 0; | |
2351 | #endif | |
8d08fdba MS |
2352 | tree arg_types = TYPE_ARG_TYPES (type); |
2353 | ||
2354 | if (TREE_CODE (type) == METHOD_TYPE) | |
2355 | { | |
2356 | type = build_function_type (TREE_TYPE (type), TREE_CHAIN (arg_types)); | |
2357 | arg_types = TREE_CHAIN (arg_types); | |
2358 | } | |
824b9a4c | 2359 | |
8d08fdba | 2360 | if (TREE_TYPE (type) != void_type_node) |
8251199e | 2361 | e1 = 1, error ("`operator delete' must return type `void'"); |
824b9a4c | 2362 | |
8d08fdba | 2363 | if (arg_types == NULL_TREE |
ee996e9e | 2364 | || ! same_type_p (TREE_VALUE (arg_types), ptr_type_node)) |
8251199e | 2365 | e2 = 1, error ("`operator delete' takes type `void *' as first parameter"); |
8d08fdba | 2366 | |
da4768fe | 2367 | #if 0 |
8d08fdba MS |
2368 | if (arg_types |
2369 | && TREE_CHAIN (arg_types) | |
2370 | && TREE_CHAIN (arg_types) != void_list_node) | |
2371 | { | |
2372 | /* Again, technically this argument must be `size_t', but again | |
2373 | we may not know what that is. */ | |
2374 | tree t2 = TREE_VALUE (TREE_CHAIN (arg_types)); | |
ee996e9e | 2375 | if (! same_type_p (t2, sizetype)) |
8251199e | 2376 | e3 = 1, error ("second argument to `operator delete' must be of type `size_t'"); |
8d08fdba MS |
2377 | else if (TREE_CHAIN (TREE_CHAIN (arg_types)) != void_list_node) |
2378 | { | |
2379 | e3 = 1; | |
2380 | if (TREE_CHAIN (TREE_CHAIN (arg_types))) | |
8251199e | 2381 | error ("too many arguments in declaration of `operator delete'"); |
8d08fdba | 2382 | else |
8251199e | 2383 | error ("`...' invalid in specification of `operator delete'"); |
8d08fdba MS |
2384 | } |
2385 | } | |
824b9a4c | 2386 | |
8d08fdba | 2387 | if (e3) |
824b9a4c MS |
2388 | arg_types = tree_cons (NULL_TREE, ptr_type_node, |
2389 | build_tree_list (NULL_TREE, sizetype)); | |
8d08fdba MS |
2390 | else if (e3 |= e2) |
2391 | { | |
2392 | if (arg_types == NULL_TREE) | |
a28e3c7f | 2393 | arg_types = tree_cons (NULL_TREE, ptr_type_node, void_list_node); |
8d08fdba MS |
2394 | else |
2395 | arg_types = tree_cons (NULL_TREE, ptr_type_node, TREE_CHAIN (arg_types)); | |
2396 | } | |
2397 | else e3 |= e1; | |
da4768fe | 2398 | #endif |
8d08fdba | 2399 | |
da4768fe JM |
2400 | if (e2) |
2401 | arg_types = tree_cons (NULL_TREE, ptr_type_node, | |
2402 | arg_types ? TREE_CHAIN (arg_types): NULL_TREE); | |
2403 | if (e2 || e1) | |
8d08fdba MS |
2404 | type = build_function_type (void_type_node, arg_types); |
2405 | ||
2406 | return type; | |
2407 | } | |
2408 | \f | |
2409 | static void | |
8926095f | 2410 | mark_vtable_entries (decl) |
8d08fdba MS |
2411 | tree decl; |
2412 | { | |
f30432d7 MS |
2413 | tree entries = CONSTRUCTOR_ELTS (DECL_INITIAL (decl)); |
2414 | ||
8d08fdba MS |
2415 | for (; entries; entries = TREE_CHAIN (entries)) |
2416 | { | |
aff08c18 JM |
2417 | tree fnaddr; |
2418 | tree fn; | |
2419 | ||
db39aa0b AO |
2420 | fnaddr = (flag_vtable_thunks ? TREE_VALUE (entries) |
2421 | : FNADDR_FROM_VTABLE_ENTRY (TREE_VALUE (entries))); | |
2422 | ||
2423 | if (TREE_CODE (fnaddr) == NOP_EXPR) | |
aff08c18 JM |
2424 | /* RTTI offset. */ |
2425 | continue; | |
2426 | ||
aff08c18 | 2427 | fn = TREE_OPERAND (fnaddr, 0); |
8926095f | 2428 | TREE_ADDRESSABLE (fn) = 1; |
a80e4195 MS |
2429 | if (TREE_CODE (fn) == THUNK_DECL && DECL_EXTERNAL (fn)) |
2430 | { | |
2431 | DECL_EXTERNAL (fn) = 0; | |
2432 | emit_thunk (fn); | |
2433 | } | |
5566b478 | 2434 | mark_used (fn); |
7177d104 MS |
2435 | } |
2436 | } | |
2437 | ||
d11ad92e MS |
2438 | /* Set DECL up to have the closest approximation of "initialized common" |
2439 | linkage available. */ | |
2440 | ||
2441 | void | |
2442 | comdat_linkage (decl) | |
2443 | tree decl; | |
2444 | { | |
d11ad92e | 2445 | if (flag_weak) |
7fcdf4c2 | 2446 | make_decl_one_only (decl); |
2f435bed JM |
2447 | else if (TREE_CODE (decl) == FUNCTION_DECL || DECL_VIRTUAL_P (decl)) |
2448 | /* We can just emit functions and vtables statically; it doesn't really | |
2449 | matter if we have multiple copies. */ | |
7fcdf4c2 | 2450 | TREE_PUBLIC (decl) = 0; |
ea735e02 JM |
2451 | else |
2452 | { | |
2f435bed JM |
2453 | /* Static data member template instantiations, however, cannot |
2454 | have multiple copies. */ | |
ea735e02 JM |
2455 | if (DECL_INITIAL (decl) == 0 |
2456 | || DECL_INITIAL (decl) == error_mark_node) | |
2457 | DECL_COMMON (decl) = 1; | |
2458 | else if (EMPTY_CONSTRUCTOR_P (DECL_INITIAL (decl))) | |
2459 | { | |
2460 | DECL_COMMON (decl) = 1; | |
2461 | DECL_INITIAL (decl) = error_mark_node; | |
2462 | } | |
2463 | else | |
2464 | { | |
2465 | /* We can't do anything useful; leave vars for explicit | |
2466 | instantiation. */ | |
2467 | DECL_EXTERNAL (decl) = 1; | |
2468 | DECL_NOT_REALLY_EXTERN (decl) = 0; | |
2469 | } | |
2470 | } | |
ab23f787 JM |
2471 | |
2472 | if (DECL_LANG_SPECIFIC (decl)) | |
2473 | DECL_COMDAT (decl) = 1; | |
d11ad92e MS |
2474 | } |
2475 | ||
b385c841 JM |
2476 | /* For win32 we also want to put explicit instantiations in |
2477 | linkonce sections, so that they will be merged with implicit | |
2478 | instantiations; otherwise we get duplicate symbol errors. */ | |
2479 | ||
2480 | void | |
2481 | maybe_make_one_only (decl) | |
2482 | tree decl; | |
2483 | { | |
2484 | /* This is not necessary on targets that support weak symbols, because | |
2485 | the implicit instantiations will defer to the explicit one. */ | |
2486 | if (! supports_one_only () || SUPPORTS_WEAK) | |
2487 | return; | |
2488 | ||
2489 | /* We can't set DECL_COMDAT on functions, or finish_file will think | |
ea735e02 JM |
2490 | we can get away with not emitting them if they aren't used. We need |
2491 | to for variables so that cp_finish_decl will update their linkage, | |
2492 | because their DECL_INITIAL may not have been set properly yet. */ | |
b385c841 | 2493 | |
ea735e02 JM |
2494 | make_decl_one_only (decl); |
2495 | ||
2496 | if (TREE_CODE (decl) == VAR_DECL && DECL_LANG_SPECIFIC (decl)) | |
2497 | DECL_COMDAT (decl) = 1; | |
b385c841 JM |
2498 | } |
2499 | ||
d18c083e | 2500 | /* Set TREE_PUBLIC and/or DECL_EXTERN on the vtable DECL, |
7177d104 MS |
2501 | based on TYPE and other static flags. |
2502 | ||
2503 | Note that anything public is tagged TREE_PUBLIC, whether | |
2504 | it's public in this file or in another one. */ | |
2505 | ||
5b605f68 | 2506 | void |
e3417fcd MS |
2507 | import_export_vtable (decl, type, final) |
2508 | tree decl, type; | |
2509 | int final; | |
7177d104 | 2510 | { |
e3417fcd MS |
2511 | if (DECL_INTERFACE_KNOWN (decl)) |
2512 | return; | |
2513 | ||
56ae6d77 | 2514 | if (TYPE_FOR_JAVA (type)) |
7177d104 MS |
2515 | { |
2516 | TREE_PUBLIC (decl) = 1; | |
56ae6d77 | 2517 | DECL_EXTERNAL (decl) = 1; |
e3417fcd MS |
2518 | DECL_INTERFACE_KNOWN (decl) = 1; |
2519 | } | |
2520 | else if (CLASSTYPE_INTERFACE_KNOWN (type)) | |
2521 | { | |
2522 | TREE_PUBLIC (decl) = 1; | |
2523 | DECL_EXTERNAL (decl) = ! CLASSTYPE_VTABLE_NEEDS_WRITING (type); | |
2524 | DECL_INTERFACE_KNOWN (decl) = 1; | |
2525 | } | |
2526 | else | |
2527 | { | |
b7484fbe MS |
2528 | /* We can only wait to decide if we have real non-inline virtual |
2529 | functions in our class, or if we come from a template. */ | |
e3417fcd MS |
2530 | |
2531 | int found = CLASSTYPE_TEMPLATE_INSTANTIATION (type); | |
2532 | ||
2533 | if (! found && ! final) | |
2534 | { | |
e3417fcd | 2535 | tree method; |
72b7eeff MS |
2536 | for (method = TYPE_METHODS (type); method != NULL_TREE; |
2537 | method = TREE_CHAIN (method)) | |
faae18ab MS |
2538 | if (DECL_VINDEX (method) != NULL_TREE |
2539 | && ! DECL_THIS_INLINE (method) | |
e3417fcd MS |
2540 | && ! DECL_ABSTRACT_VIRTUAL_P (method)) |
2541 | { | |
2542 | found = 1; | |
2543 | break; | |
2544 | } | |
2545 | } | |
2546 | ||
2547 | if (final || ! found) | |
2548 | { | |
d11ad92e | 2549 | comdat_linkage (decl); |
e3417fcd | 2550 | DECL_EXTERNAL (decl) = 0; |
e3417fcd MS |
2551 | } |
2552 | else | |
2553 | { | |
2554 | TREE_PUBLIC (decl) = 1; | |
2555 | DECL_EXTERNAL (decl) = 1; | |
e3417fcd | 2556 | } |
8d08fdba MS |
2557 | } |
2558 | } | |
2559 | ||
7e776093 JM |
2560 | /* Determine whether or not we want to specifically import or export CTYPE, |
2561 | using various heuristics. */ | |
67f7c391 JM |
2562 | |
2563 | void | |
2564 | import_export_class (ctype) | |
2565 | tree ctype; | |
8d08fdba | 2566 | { |
7e776093 JM |
2567 | /* -1 for imported, 1 for exported. */ |
2568 | int import_export = 0; | |
2569 | ||
2570 | if (CLASSTYPE_INTERFACE_KNOWN (ctype)) | |
2571 | return; | |
2572 | ||
e9659ab0 JM |
2573 | /* If MULTIPLE_SYMBOL_SPACES is defined and we saw a #pragma interface, |
2574 | we will have CLASSTYPE_INTERFACE_ONLY set but not | |
2575 | CLASSTYPE_INTERFACE_KNOWN. In that case, we don't want to use this | |
2576 | heuristic because someone will supply a #pragma implementation | |
2577 | elsewhere, and deducing it here would produce a conflict. */ | |
2578 | if (CLASSTYPE_INTERFACE_ONLY (ctype)) | |
2579 | return; | |
2580 | ||
7e776093 JM |
2581 | #ifdef VALID_MACHINE_TYPE_ATTRIBUTE |
2582 | /* FIXME this should really use some sort of target-independent macro. */ | |
2583 | if (lookup_attribute ("dllimport", TYPE_ATTRIBUTES (ctype))) | |
2584 | import_export = -1; | |
2585 | else if (lookup_attribute ("dllexport", TYPE_ATTRIBUTES (ctype))) | |
2586 | import_export = 1; | |
2587 | #endif | |
2588 | ||
2589 | /* If we got -fno-implicit-templates, we import template classes that | |
2590 | weren't explicitly instantiated. */ | |
2591 | if (import_export == 0 | |
2592 | && CLASSTYPE_IMPLICIT_INSTANTIATION (ctype) | |
2593 | && ! flag_implicit_templates) | |
2594 | import_export = -1; | |
7177d104 | 2595 | |
7e776093 JM |
2596 | /* Base our import/export status on that of the first non-inline, |
2597 | non-abstract virtual function, if any. */ | |
2598 | if (import_export == 0 | |
2599 | && TYPE_VIRTUAL_P (ctype) | |
b7484fbe | 2600 | && ! CLASSTYPE_TEMPLATE_INSTANTIATION (ctype)) |
51c184be MS |
2601 | { |
2602 | tree method; | |
72b7eeff MS |
2603 | for (method = TYPE_METHODS (ctype); method != NULL_TREE; |
2604 | method = TREE_CHAIN (method)) | |
51c184be | 2605 | { |
28cbf42c | 2606 | if (DECL_VINDEX (method) != NULL_TREE |
faae18ab | 2607 | && !DECL_THIS_INLINE (method) |
a0a33927 | 2608 | && !DECL_ABSTRACT_VIRTUAL_P (method)) |
51c184be | 2609 | { |
7e776093 | 2610 | import_export = (DECL_REALLY_EXTERN (method) ? -1 : 1); |
51c184be MS |
2611 | break; |
2612 | } | |
2613 | } | |
2614 | } | |
ad236eab JM |
2615 | |
2616 | #ifdef MULTIPLE_SYMBOL_SPACES | |
2617 | if (import_export == -1) | |
2618 | import_export = 0; | |
c11b6f21 | 2619 | #endif |
7e776093 JM |
2620 | |
2621 | if (import_export) | |
2622 | { | |
2623 | SET_CLASSTYPE_INTERFACE_KNOWN (ctype); | |
2624 | CLASSTYPE_VTABLE_NEEDS_WRITING (ctype) = (import_export > 0); | |
2625 | CLASSTYPE_INTERFACE_ONLY (ctype) = (import_export < 0); | |
2626 | } | |
67f7c391 JM |
2627 | } |
2628 | ||
a1dd0d36 | 2629 | /* We need to describe to the assembler the relationship between |
59fa060f | 2630 | a vtable and the vtable of the parent class. */ |
a1dd0d36 JM |
2631 | |
2632 | static void | |
2633 | output_vtable_inherit (vars) | |
2634 | tree vars; | |
2635 | { | |
2636 | tree parent; | |
2637 | rtx op[2]; | |
2638 | ||
2639 | op[0] = XEXP (DECL_RTL (vars), 0); /* strip the mem ref */ | |
2640 | ||
2641 | parent = binfo_for_vtable (vars); | |
2642 | ||
2643 | if (parent == TYPE_BINFO (DECL_CONTEXT (vars))) | |
2644 | op[1] = const0_rtx; | |
2645 | else if (parent) | |
2646 | { | |
2647 | parent = TYPE_BINFO_VTABLE (BINFO_TYPE (parent)); | |
2648 | op[1] = XEXP (DECL_RTL (parent), 0); /* strip the mem ref */ | |
2649 | } | |
2650 | else | |
2651 | my_friendly_abort (980826); | |
2652 | ||
59fa060f | 2653 | output_asm_insn (".vtable_inherit %c0, %c1", op); |
a1dd0d36 JM |
2654 | } |
2655 | ||
fc378698 | 2656 | static int |
0aafb128 MM |
2657 | finish_vtable_vardecl (t, data) |
2658 | tree *t; | |
2659 | void *data ATTRIBUTE_UNUSED; | |
d18c083e | 2660 | { |
0aafb128 | 2661 | tree vars = *t; |
2455f26f JM |
2662 | tree ctype = DECL_CONTEXT (vars); |
2663 | import_export_class (ctype); | |
2664 | import_export_vtable (vars, ctype, 1); | |
2665 | ||
56ae6d77 | 2666 | if (! DECL_EXTERNAL (vars) |
0352cfc8 MM |
2667 | && (DECL_INTERFACE_KNOWN (vars) |
2668 | || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (vars)) | |
2669 | || (hack_decl_function_context (vars) && TREE_USED (vars))) | |
fc378698 | 2670 | && ! TREE_ASM_WRITTEN (vars)) |
d18c083e | 2671 | { |
8d08fdba | 2672 | /* Write it out. */ |
8926095f | 2673 | mark_vtable_entries (vars); |
8d08fdba | 2674 | if (TREE_TYPE (DECL_INITIAL (vars)) == 0) |
b7484fbe | 2675 | store_init_value (vars, DECL_INITIAL (vars)); |
8d08fdba | 2676 | |
faf5394a | 2677 | if (write_symbols == DWARF_DEBUG || write_symbols == DWARF2_DEBUG) |
8d08fdba MS |
2678 | { |
2679 | /* Mark the VAR_DECL node representing the vtable itself as a | |
2680 | "gratuitous" one, thereby forcing dwarfout.c to ignore it. | |
2681 | It is rather important that such things be ignored because | |
2682 | any effort to actually generate DWARF for them will run | |
2683 | into trouble when/if we encounter code like: | |
2684 | ||
2685 | #pragma interface | |
2686 | struct S { virtual void member (); }; | |
2687 | ||
2688 | because the artificial declaration of the vtable itself (as | |
2689 | manufactured by the g++ front end) will say that the vtable | |
2690 | is a static member of `S' but only *after* the debug output | |
2691 | for the definition of `S' has already been output. This causes | |
2692 | grief because the DWARF entry for the definition of the vtable | |
2693 | will try to refer back to an earlier *declaration* of the | |
2694 | vtable as a static member of `S' and there won't be one. | |
2695 | We might be able to arrange to have the "vtable static member" | |
2696 | attached to the member list for `S' before the debug info for | |
2697 | `S' get written (which would solve the problem) but that would | |
2698 | require more intrusive changes to the g++ front end. */ | |
2699 | ||
2700 | DECL_IGNORED_P (vars) = 1; | |
2701 | } | |
8d08fdba | 2702 | |
e2213efb JM |
2703 | /* Always make vtables weak. */ |
2704 | if (flag_weak) | |
2705 | comdat_linkage (vars); | |
2706 | ||
311862c8 | 2707 | rest_of_decl_compilation (vars, NULL_PTR, 1, 1); |
a1dd0d36 JM |
2708 | |
2709 | if (flag_vtable_gc) | |
2710 | output_vtable_inherit (vars); | |
2711 | ||
fc378698 | 2712 | return 1; |
8d08fdba | 2713 | } |
0352cfc8 | 2714 | else if (! TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (vars))) |
b7484fbe | 2715 | /* We don't know what to do with this one yet. */ |
fc378698 | 2716 | return 0; |
b7484fbe | 2717 | |
0aafb128 | 2718 | *t = TREE_CHAIN (vars); |
fc378698 | 2719 | return 0; |
b7484fbe MS |
2720 | } |
2721 | ||
fc378698 | 2722 | static int |
0aafb128 MM |
2723 | prune_vtable_vardecl (t, data) |
2724 | tree *t; | |
2725 | void *data ATTRIBUTE_UNUSED; | |
b7484fbe | 2726 | { |
0aafb128 | 2727 | *t = TREE_CHAIN (*t); |
fc378698 | 2728 | return 1; |
8d08fdba MS |
2729 | } |
2730 | ||
0aafb128 MM |
2731 | static int |
2732 | finish_sigtable_vardecl (t, data) | |
2733 | tree *t; | |
2734 | void *data ATTRIBUTE_UNUSED; | |
311862c8 GB |
2735 | { |
2736 | /* We don't need to mark sigtable entries as addressable here as is done | |
2737 | for vtables. Since sigtables, unlike vtables, are always written out, | |
2738 | that was already done in build_signature_table_constructor. */ | |
2739 | ||
0aafb128 MM |
2740 | rest_of_decl_compilation (*t, NULL_PTR, 1, 1); |
2741 | *t = TREE_CHAIN (*t); | |
2742 | return 1; | |
311862c8 GB |
2743 | } |
2744 | ||
00595019 | 2745 | /* Determines the proper settings of TREE_PUBLIC and DECL_EXTERNAL for an |
5566b478 | 2746 | inline function or template instantiation at end-of-file. */ |
00595019 MS |
2747 | |
2748 | void | |
5566b478 | 2749 | import_export_decl (decl) |
00595019 MS |
2750 | tree decl; |
2751 | { | |
db5ae43f | 2752 | if (DECL_INTERFACE_KNOWN (decl)) |
00595019 MS |
2753 | return; |
2754 | ||
61289ca3 MM |
2755 | if (DECL_TEMPLATE_INSTANTIATION (decl) |
2756 | || DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (decl)) | |
00595019 | 2757 | { |
5566b478 | 2758 | DECL_NOT_REALLY_EXTERN (decl) = 1; |
61289ca3 MM |
2759 | if ((DECL_IMPLICIT_INSTANTIATION (decl) |
2760 | || DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (decl)) | |
5eea678f JM |
2761 | && (flag_implicit_templates |
2762 | || (flag_implicit_inline_templates && DECL_THIS_INLINE (decl)))) | |
a9aedbc2 | 2763 | { |
75650646 MM |
2764 | if (!TREE_PUBLIC (decl)) |
2765 | /* Templates are allowed to have internal linkage. See | |
2766 | [basic.link]. */ | |
2767 | ; | |
d11ad92e | 2768 | else |
ea735e02 | 2769 | comdat_linkage (decl); |
a9aedbc2 | 2770 | } |
db5ae43f | 2771 | else |
faae18ab | 2772 | DECL_NOT_REALLY_EXTERN (decl) = 0; |
00595019 MS |
2773 | } |
2774 | else if (DECL_FUNCTION_MEMBER_P (decl)) | |
2775 | { | |
2776 | tree ctype = DECL_CLASS_CONTEXT (decl); | |
8452b1d3 | 2777 | import_export_class (ctype); |
047f64a3 JM |
2778 | if (CLASSTYPE_INTERFACE_KNOWN (ctype) |
2779 | && (! DECL_ARTIFICIAL (decl) || DECL_VINDEX (decl))) | |
00595019 | 2780 | { |
faae18ab MS |
2781 | DECL_NOT_REALLY_EXTERN (decl) |
2782 | = ! (CLASSTYPE_INTERFACE_ONLY (ctype) | |
9c73ec84 MS |
2783 | || (DECL_THIS_INLINE (decl) && ! flag_implement_inlines |
2784 | && !DECL_VINDEX (decl))); | |
1a408d07 JM |
2785 | |
2786 | /* Always make artificials weak. */ | |
2787 | if (DECL_ARTIFICIAL (decl) && flag_weak) | |
2788 | comdat_linkage (decl); | |
1f901793 JM |
2789 | else |
2790 | maybe_make_one_only (decl); | |
00595019 | 2791 | } |
db5ae43f | 2792 | else |
d11ad92e | 2793 | comdat_linkage (decl); |
00595019 | 2794 | } |
0aafb128 | 2795 | else if (DECL_TINFO_FN_P (decl)) |
6b5fbb55 MS |
2796 | { |
2797 | tree ctype = TREE_TYPE (DECL_NAME (decl)); | |
8452b1d3 JM |
2798 | |
2799 | if (IS_AGGR_TYPE (ctype)) | |
2800 | import_export_class (ctype); | |
2801 | ||
d11ad92e | 2802 | if (IS_AGGR_TYPE (ctype) && CLASSTYPE_INTERFACE_KNOWN (ctype) |
7e776093 | 2803 | && TYPE_VIRTUAL_P (ctype) |
af9c2d8a MM |
2804 | /* If the type is a cv-qualified variant of a type, then we |
2805 | must emit the tinfo function in this translation unit | |
2806 | since it will not be emitted when the vtable for the type | |
2807 | is output (which is when the unqualified version is | |
2808 | generated). */ | |
1b5f5f76 | 2809 | && same_type_p (ctype, TYPE_MAIN_VARIANT (ctype))) |
7e776093 | 2810 | { |
6b5fbb55 | 2811 | DECL_NOT_REALLY_EXTERN (decl) |
7e776093 | 2812 | = ! (CLASSTYPE_INTERFACE_ONLY (ctype) |
9c73ec84 MS |
2813 | || (DECL_THIS_INLINE (decl) && ! flag_implement_inlines |
2814 | && !DECL_VINDEX (decl))); | |
eb773359 | 2815 | |
1a408d07 JM |
2816 | /* Always make artificials weak. */ |
2817 | if (flag_weak) | |
2818 | comdat_linkage (decl); | |
6b5fbb55 | 2819 | } |
1b5f5f76 MM |
2820 | else if (TYPE_BUILT_IN (ctype) |
2821 | && same_type_p (ctype, TYPE_MAIN_VARIANT (ctype))) | |
6b5fbb55 | 2822 | DECL_NOT_REALLY_EXTERN (decl) = 0; |
6b5fbb55 | 2823 | else |
d11ad92e | 2824 | comdat_linkage (decl); |
6b5fbb55 | 2825 | } |
db5ae43f | 2826 | else |
d11ad92e | 2827 | comdat_linkage (decl); |
e8abc66f MS |
2828 | |
2829 | DECL_INTERFACE_KNOWN (decl) = 1; | |
00595019 | 2830 | } |
db5ae43f | 2831 | |
72b7eeff MS |
2832 | tree |
2833 | build_cleanup (decl) | |
2834 | tree decl; | |
2835 | { | |
2836 | tree temp; | |
2837 | tree type = TREE_TYPE (decl); | |
2838 | ||
2839 | if (TREE_CODE (type) == ARRAY_TYPE) | |
2840 | temp = decl; | |
2841 | else | |
2842 | { | |
2843 | mark_addressable (decl); | |
2844 | temp = build1 (ADDR_EXPR, build_pointer_type (type), decl); | |
2845 | } | |
2846 | temp = build_delete (TREE_TYPE (temp), temp, | |
2847 | integer_two_node, | |
2848 | LOOKUP_NORMAL|LOOKUP_NONVIRTUAL|LOOKUP_DESTRUCTOR, 0); | |
2849 | return temp; | |
2850 | } | |
2851 | ||
8d08fdba MS |
2852 | extern int parse_time, varconst_time; |
2853 | ||
824b9a4c | 2854 | static tree |
67d743fe MS |
2855 | get_sentry (base) |
2856 | tree base; | |
2857 | { | |
2858 | tree sname = get_id_2 ("__sn", base); | |
2c73f9f5 | 2859 | /* For struct X foo __attribute__((weak)), there is a counter |
30394414 JM |
2860 | __snfoo. Since base is already an assembler name, sname should |
2861 | be globally unique */ | |
67d743fe MS |
2862 | tree sentry = IDENTIFIER_GLOBAL_VALUE (sname); |
2863 | if (! sentry) | |
2864 | { | |
88537ff2 JM |
2865 | push_obstacks_nochange (); |
2866 | end_temporary_allocation (); | |
67d743fe MS |
2867 | sentry = build_decl (VAR_DECL, sname, integer_type_node); |
2868 | TREE_PUBLIC (sentry) = 1; | |
2869 | DECL_ARTIFICIAL (sentry) = 1; | |
2870 | TREE_STATIC (sentry) = 1; | |
2871 | TREE_USED (sentry) = 1; | |
2872 | DECL_COMMON (sentry) = 1; | |
2873 | pushdecl_top_level (sentry); | |
2874 | cp_finish_decl (sentry, NULL_TREE, NULL_TREE, 0, 0); | |
2875 | pop_obstacks (); | |
2876 | } | |
2877 | return sentry; | |
2878 | } | |
2879 | ||
961ec1a5 JM |
2880 | /* Start the process of running a particular set of global constructors |
2881 | or destructors. Subroutine of do_[cd]tors. */ | |
2882 | ||
2883 | static void | |
2ce3c6c6 JM |
2884 | start_objects (method_type, initp) |
2885 | int method_type, initp; | |
961ec1a5 JM |
2886 | { |
2887 | tree fnname; | |
2ce3c6c6 | 2888 | char type[10]; |
961ec1a5 JM |
2889 | |
2890 | /* Make ctor or dtor function. METHOD_TYPE may be 'I' or 'D'. */ | |
2891 | ||
000ab922 | 2892 | if (initp != DEFAULT_INIT_PRIORITY) |
2ce3c6c6 | 2893 | { |
066d147c MH |
2894 | char joiner; |
2895 | ||
2896 | #ifdef JOINER | |
2897 | joiner = JOINER; | |
2898 | #else | |
2899 | joiner = '_'; | |
2900 | #endif | |
2ce3c6c6 | 2901 | |
066d147c | 2902 | sprintf (type, "%c%c%.5u", method_type, joiner, initp); |
2ce3c6c6 JM |
2903 | } |
2904 | else | |
2905 | sprintf (type, "%c", method_type); | |
2906 | ||
2907 | fnname = get_file_function_name_long (type); | |
961ec1a5 JM |
2908 | |
2909 | start_function (void_list_node, | |
2910 | make_call_declarator (fnname, void_list_node, NULL_TREE, | |
2911 | NULL_TREE), | |
2912 | NULL_TREE, 0); | |
2913 | ||
b4bb92e5 | 2914 | #if defined(ASM_OUTPUT_CONSTRUCTOR) && defined(ASM_OUTPUT_DESTRUCTOR) |
14686fcd JL |
2915 | /* It can be a static function as long as collect2 does not have |
2916 | to scan the object file to find its ctor/dtor routine. */ | |
b4bb92e5 L |
2917 | TREE_PUBLIC (current_function_decl) = 0; |
2918 | #endif | |
2919 | ||
961ec1a5 JM |
2920 | store_parm_decls (); |
2921 | pushlevel (0); | |
2922 | clear_last_expr (); | |
2923 | push_momentary (); | |
2924 | expand_start_bindings (0); | |
b3f738da MM |
2925 | |
2926 | /* We cannot allow these functions to be elided, even if they do not | |
2927 | have external linkage. And, there's no point in deferring | |
2928 | copmilation of thes functions; they're all going to have to be | |
2929 | out anyhow. */ | |
2930 | current_function_cannot_inline | |
2931 | = "static constructors and destructors cannot be inlined"; | |
961ec1a5 JM |
2932 | } |
2933 | ||
2934 | /* Finish the process of running a particular set of global constructors | |
2935 | or destructors. Subroutine of do_[cd]tors. */ | |
2936 | ||
2937 | static void | |
2ce3c6c6 JM |
2938 | finish_objects (method_type, initp) |
2939 | int method_type, initp; | |
961ec1a5 | 2940 | { |
0aafb128 | 2941 | char *fnname = XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0); |
961ec1a5 JM |
2942 | |
2943 | /* Finish up. */ | |
2944 | expand_end_bindings (getdecls (), 1, 0); | |
2945 | poplevel (1, 0, 0); | |
2946 | pop_momentary (); | |
2947 | finish_function (lineno, 0, 0); | |
2948 | ||
000ab922 | 2949 | if (initp == DEFAULT_INIT_PRIORITY) |
2ce3c6c6 JM |
2950 | { |
2951 | if (method_type == 'I') | |
2952 | assemble_constructor (fnname); | |
2953 | else | |
2954 | assemble_destructor (fnname); | |
2955 | } | |
2956 | ||
7a8f9fa9 | 2957 | #if defined (ASM_OUTPUT_SECTION_NAME) && defined (ASM_OUTPUT_CONSTRUCTOR) |
2ce3c6c6 JM |
2958 | /* If we're using init priority we can't use assemble_*tor, but on ELF |
2959 | targets we can stick the references into named sections for GNU ld | |
2960 | to collect. */ | |
000ab922 | 2961 | else |
2ce3c6c6 JM |
2962 | { |
2963 | char buf[15]; | |
2ce3c6c6 JM |
2964 | sprintf (buf, ".%ctors.%.5u", method_type == 'I' ? 'c' : 'd', |
2965 | /* invert the numbering so the linker puts us in the proper | |
2966 | order; constructors are run from right to left, and the | |
2967 | linker sorts in increasing order. */ | |
2968 | MAX_INIT_PRIORITY - initp); | |
2969 | named_section (NULL_TREE, buf, 0); | |
2970 | assemble_integer (gen_rtx_SYMBOL_REF (Pmode, fnname), | |
2971 | POINTER_SIZE / BITS_PER_UNIT, 1); | |
2972 | } | |
2973 | #endif | |
961ec1a5 JM |
2974 | } |
2975 | ||
0aafb128 MM |
2976 | /* The names of the parameters to the function created to handle |
2977 | initializations and destructions for objects with static storage | |
2978 | duration. */ | |
2979 | #define INITIALIZE_P_IDENTIFIER "__initialize_p" | |
2980 | #define PRIORITY_IDENTIFIER "__priority" | |
2981 | ||
2982 | /* The name of the function we create to handle initializations and | |
2983 | destructions for objects with static storage duration. */ | |
2984 | #define SSDF_IDENTIFIER "__static_initialization_and_destruction" | |
2985 | ||
2986 | /* The declaration for the __INITIALIZE_P argument. */ | |
2987 | static tree initialize_p_decl; | |
2988 | ||
2989 | /* The declaration for the __PRIORITY argument. */ | |
2990 | static tree priority_decl; | |
2991 | ||
2992 | /* The declaration for the static storage duration function. */ | |
2993 | static tree ssdf_decl; | |
2994 | ||
0352cfc8 MM |
2995 | /* All the static storage duration functions created in this |
2996 | translation unit. */ | |
2997 | static varray_type ssdf_decls; | |
2998 | static size_t ssdf_decls_used; | |
2999 | ||
0aafb128 MM |
3000 | /* A map from priority levels to information about that priority |
3001 | level. There may be many such levels, so efficient lookup is | |
3002 | important. */ | |
3003 | static splay_tree priority_info_map; | |
3004 | ||
3005 | /* Begins the generation of the function that will handle all | |
3006 | initialization and destruction of objects with static storage | |
3007 | duration. The function generated takes two parameters of type | |
3008 | `int': __INITIALIZE_P and __PRIORITY. If __INITIALIZE_P is | |
3009 | non-zero, it performs initializations. Otherwise, it performs | |
3010 | destructions. It only performs those initializations or | |
3011 | destructions with the indicated __PRIORITY. The generated function | |
3012 | returns no value. | |
3013 | ||
3014 | It is assumed that this function will only be called once per | |
3015 | translation unit. */ | |
961ec1a5 JM |
3016 | |
3017 | static void | |
0aafb128 | 3018 | start_static_storage_duration_function () |
961ec1a5 | 3019 | { |
0352cfc8 MM |
3020 | static unsigned ssdf_number; |
3021 | ||
0aafb128 MM |
3022 | tree parm_types; |
3023 | tree type; | |
0352cfc8 MM |
3024 | char id[sizeof (SSDF_IDENTIFIER) + 1 /* '\0' */ + 32]; |
3025 | ||
3026 | /* Create the identifier for this function. It will be of the form | |
3027 | SSDF_IDENTIFIER_<number>. */ | |
3028 | sprintf (id, "%s_%u", SSDF_IDENTIFIER, ssdf_number++); | |
3029 | if (ssdf_number == 0) | |
3030 | { | |
3031 | /* Overflow occurred. That means there are at least 4 billion | |
3032 | initialization functions. */ | |
3033 | sorry ("too many initialization functions required"); | |
3034 | my_friendly_abort (19990430); | |
3035 | } | |
0aafb128 MM |
3036 | |
3037 | /* Create the parameters. */ | |
3038 | parm_types = void_list_node; | |
3039 | parm_types = perm_tree_cons (NULL_TREE, integer_type_node, parm_types); | |
3040 | parm_types = perm_tree_cons (NULL_TREE, integer_type_node, parm_types); | |
3041 | type = build_function_type (void_type_node, parm_types); | |
3042 | ||
3043 | /* Create the FUNCTION_DECL itself. */ | |
3044 | ssdf_decl = build_lang_decl (FUNCTION_DECL, | |
0352cfc8 | 3045 | get_identifier (id), |
0aafb128 MM |
3046 | type); |
3047 | TREE_PUBLIC (ssdf_decl) = 0; | |
3048 | DECL_ARTIFICIAL (ssdf_decl) = 1; | |
0352cfc8 MM |
3049 | |
3050 | /* Put this function in the list of functions to be called from the | |
3051 | static constructors and destructors. */ | |
3052 | if (!ssdf_decls) | |
3053 | { | |
3054 | VARRAY_TREE_INIT (ssdf_decls, 32, "ssdf_decls"); | |
3055 | ||
3056 | /* Take this opportunity to initialize the map from priority | |
3057 | numbers to information about that priority level. */ | |
3058 | priority_info_map = splay_tree_new (splay_tree_compare_ints, | |
3059 | /*delete_key_fn=*/0, | |
3060 | /*delete_value_fn=*/ | |
3061 | (splay_tree_delete_value_fn) &free); | |
3062 | ||
3063 | /* We always need to generate functions for the | |
3064 | DEFAULT_INIT_PRIORITY so enter it now. That way when we walk | |
3065 | priorities later, we'll be sure to find the | |
3066 | DEFAULT_INIT_PRIORITY. */ | |
3067 | get_priority_info (DEFAULT_INIT_PRIORITY); | |
3068 | } | |
3069 | ||
3070 | if (ssdf_decls_used == ssdf_decls->num_elements) | |
3071 | VARRAY_GROW (ssdf_decls, 2 * ssdf_decls_used); | |
3072 | VARRAY_TREE (ssdf_decls, ssdf_decls_used) = ssdf_decl; | |
3073 | ++ssdf_decls_used; | |
0aafb128 MM |
3074 | |
3075 | /* Create the argument list. */ | |
3076 | initialize_p_decl = build_decl (PARM_DECL, | |
3077 | get_identifier (INITIALIZE_P_IDENTIFIER), | |
3078 | integer_type_node); | |
3079 | DECL_CONTEXT (initialize_p_decl) = ssdf_decl; | |
3080 | DECL_ARG_TYPE (initialize_p_decl) = integer_type_node; | |
3081 | TREE_USED (initialize_p_decl) = 1; | |
3082 | priority_decl = build_decl (PARM_DECL, get_identifier (PRIORITY_IDENTIFIER), | |
3083 | integer_type_node); | |
3084 | DECL_CONTEXT (priority_decl) = ssdf_decl; | |
3085 | DECL_ARG_TYPE (priority_decl) = integer_type_node; | |
3086 | TREE_USED (priority_decl) = 1; | |
3087 | ||
3088 | TREE_CHAIN (initialize_p_decl) = priority_decl; | |
3089 | DECL_ARGUMENTS (ssdf_decl) = initialize_p_decl; | |
3090 | ||
3091 | /* Start the function itself. This is equivalent to declarating the | |
3092 | function as: | |
3093 | ||
c472cdfd | 3094 | static void __ssdf (int __initialize_p, init __priority_p); |
0aafb128 MM |
3095 | |
3096 | It is static because we only need to call this function from the | |
3097 | various constructor and destructor functions for this module. */ | |
3098 | start_function (/*specs=*/NULL_TREE, | |
3099 | ssdf_decl, | |
3100 | /*attrs=*/NULL_TREE, | |
3101 | /*pre_parsed_p=*/1); | |
3102 | ||
3103 | /* Set up the scope of the outermost block in the function. */ | |
3104 | store_parm_decls (); | |
3105 | pushlevel (0); | |
3106 | clear_last_expr (); | |
3107 | push_momentary (); | |
3108 | expand_start_bindings (0); | |
2ce3c6c6 | 3109 | |
0352cfc8 MM |
3110 | /* This function must not be deferred because we are depending on |
3111 | its compilation to tell us what is TREE_SYMBOL_REFERENCED. */ | |
3112 | current_function_cannot_inline | |
3113 | = "static storage duration functions cannot be inlined"; | |
0aafb128 | 3114 | } |
961ec1a5 | 3115 | |
0aafb128 | 3116 | /* Generate the initialization code for the priority indicated in N. */ |
961ec1a5 | 3117 | |
0aafb128 MM |
3118 | static int |
3119 | generate_inits_for_priority (n, data) | |
3120 | splay_tree_node n; | |
3121 | void *data ATTRIBUTE_UNUSED; | |
3122 | { | |
3123 | int priority = (int) n->key; | |
3124 | priority_info pi = (priority_info) n->value; | |
ae58fa02 | 3125 | |
0aafb128 MM |
3126 | /* For each priority N which has been used generate code which looks |
3127 | like: | |
ae58fa02 | 3128 | |
0aafb128 MM |
3129 | if (__priority == N) { |
3130 | if (__initialize_p) | |
3131 | ... | |
3132 | else | |
3133 | ... | |
3134 | } | |
ae58fa02 | 3135 | |
0aafb128 MM |
3136 | We use the sequences we've accumulated to fill in the `...'s. */ |
3137 | expand_start_cond (build_binary_op (EQ_EXPR, | |
3138 | priority_decl, | |
3139 | build_int_2 (priority, 0)), | |
3140 | /*exit_flag=*/0); | |
ae58fa02 | 3141 | |
0aafb128 MM |
3142 | /* Do the initializations. */ |
3143 | expand_start_cond (build_binary_op (NE_EXPR, | |
3144 | initialize_p_decl, | |
3145 | integer_zero_node), | |
3146 | /*exit_flag=*/0); | |
3147 | if (pi->initialization_sequence) | |
3148 | { | |
3149 | rtx insns; | |
961ec1a5 | 3150 | |
0aafb128 MM |
3151 | push_to_sequence (pi->initialization_sequence); |
3152 | insns = gen_sequence (); | |
3153 | end_sequence (); | |
961ec1a5 | 3154 | |
0aafb128 | 3155 | emit_insn (insns); |
0352cfc8 MM |
3156 | pi->initialization_sequence = NULL_RTX; |
3157 | pi->initializations_p = 1; | |
0aafb128 | 3158 | } |
961ec1a5 | 3159 | |
0aafb128 MM |
3160 | /* Do the destructions. */ |
3161 | expand_start_else (); | |
3162 | if (pi->destruction_sequence) | |
3163 | { | |
3164 | rtx insns; | |
3165 | ||
3166 | push_to_sequence (pi->destruction_sequence); | |
3167 | insns = gen_sequence (); | |
3168 | end_sequence (); | |
3169 | ||
3170 | emit_insn (insns); | |
0352cfc8 MM |
3171 | pi->destruction_sequence = NULL_RTX; |
3172 | pi->destructions_p = 1; | |
961ec1a5 | 3173 | } |
0aafb128 MM |
3174 | |
3175 | /* Close out the conditionals. */ | |
3176 | expand_end_cond (); | |
3177 | expand_end_cond (); | |
961ec1a5 | 3178 | |
0aafb128 MM |
3179 | /* Don't stop iterating. */ |
3180 | return 0; | |
961ec1a5 JM |
3181 | } |
3182 | ||
0aafb128 MM |
3183 | /* Finish the generation of the function which performs initialization |
3184 | and destruction of objects with static storage duration. After | |
3185 | this point, no more such objects can be created. */ | |
961ec1a5 JM |
3186 | |
3187 | static void | |
0aafb128 | 3188 | finish_static_storage_duration_function () |
961ec1a5 | 3189 | { |
0aafb128 MM |
3190 | splay_tree_foreach (priority_info_map, |
3191 | generate_inits_for_priority, | |
3192 | /*data=*/0); | |
2ce3c6c6 | 3193 | |
0aafb128 MM |
3194 | /* Close out the function. */ |
3195 | expand_end_bindings (getdecls (), 1, 0); | |
3196 | poplevel (1, 0, 0); | |
3197 | pop_momentary (); | |
3198 | finish_function (lineno, 0, 0); | |
3199 | } | |
961ec1a5 | 3200 | |
0aafb128 MM |
3201 | /* Return the information about the indicated PRIORITY level. If no |
3202 | code to handle this level has yet been generated, generate the | |
3203 | appropriate prologue. */ | |
961ec1a5 | 3204 | |
0aafb128 MM |
3205 | static priority_info |
3206 | get_priority_info (priority) | |
3207 | int priority; | |
3208 | { | |
3209 | priority_info pi; | |
3210 | splay_tree_node n; | |
3211 | ||
3212 | n = splay_tree_lookup (priority_info_map, | |
3213 | (splay_tree_key) priority); | |
3214 | if (!n) | |
3215 | { | |
3216 | /* Create a new priority information structure, and insert it | |
3217 | into the map. */ | |
3218 | pi = (priority_info) xmalloc (sizeof (struct priority_info_s)); | |
3219 | pi->initialization_sequence = NULL_RTX; | |
3220 | pi->destruction_sequence = NULL_RTX; | |
0352cfc8 MM |
3221 | pi->initializations_p = 0; |
3222 | pi->destructions_p = 0; | |
0aafb128 MM |
3223 | splay_tree_insert (priority_info_map, |
3224 | (splay_tree_key) priority, | |
3225 | (splay_tree_value) pi); | |
3226 | } | |
3227 | else | |
3228 | pi = (priority_info) n->value; | |
961ec1a5 | 3229 | |
0aafb128 MM |
3230 | return pi; |
3231 | } | |
961ec1a5 | 3232 | |
0aafb128 MM |
3233 | /* Generate code to do the static initialization of DECL. The |
3234 | initialization is INIT. If DECL may be initialized more than once | |
3235 | in different object files, SENTRY is the guard variable to | |
3236 | check. PRIORITY is the priority for the initialization. */ | |
961ec1a5 | 3237 | |
0aafb128 MM |
3238 | static void |
3239 | do_static_initialization (decl, init, sentry, priority) | |
3240 | tree decl; | |
3241 | tree init; | |
3242 | tree sentry; | |
3243 | int priority; | |
3244 | { | |
3245 | priority_info pi; | |
961ec1a5 | 3246 | |
0aafb128 MM |
3247 | /* Get the priority information for this PRIORITY, */ |
3248 | pi = get_priority_info (priority); | |
3249 | if (!pi->initialization_sequence) | |
3250 | start_sequence (); | |
3251 | else | |
3252 | push_to_sequence (pi->initialization_sequence); | |
3253 | ||
3254 | /* Tell the debugger that we are at the location of the static | |
3255 | variable in question. */ | |
3256 | emit_note (input_filename, lineno); | |
3257 | ||
3258 | /* If there's a SENTRY, we only do the initialization if it is | |
3259 | zero, i.e., if we are the first to initialize it. */ | |
3260 | if (sentry) | |
3261 | expand_start_cond (build_binary_op (EQ_EXPR, | |
3262 | build_unary_op (PREINCREMENT_EXPR, | |
3263 | sentry, | |
3264 | /*noconvert=*/0), | |
3265 | integer_one_node), | |
3266 | /*exit_flag=*/0); | |
3267 | ||
3268 | /* Prepare a binding level for temporaries created during the | |
3269 | initialization. */ | |
3270 | expand_start_target_temps (); | |
3271 | ||
3272 | if (IS_AGGR_TYPE (TREE_TYPE (decl)) | |
3273 | || TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE) | |
3274 | expand_aggr_init (decl, init, 0); | |
3275 | else if (TREE_CODE (init) == TREE_VEC) | |
3276 | expand_expr (expand_vec_init (decl, TREE_VEC_ELT (init, 0), | |
3277 | TREE_VEC_ELT (init, 1), | |
3278 | TREE_VEC_ELT (init, 2), 0), | |
3279 | const0_rtx, VOIDmode, EXPAND_NORMAL); | |
3280 | else | |
3281 | expand_assignment (decl, init, 0, 0); | |
3282 | ||
3283 | /* The expression might have involved increments and decrements. */ | |
3284 | emit_queue (); | |
961ec1a5 | 3285 | |
0aafb128 MM |
3286 | /* Cleanup any temporaries needed for the initial value. */ |
3287 | expand_end_target_temps (); | |
961ec1a5 | 3288 | |
b94c0f4f | 3289 | /* Cleanup any deferred pops from function calls. This would be done |
0352cfc8 | 3290 | by expand_end_cond, but we also need it when !SENTRY, since we are |
b94c0f4f RH |
3291 | constructing these sequences by parts. */ |
3292 | do_pending_stack_adjust (); | |
3293 | ||
0aafb128 MM |
3294 | /* Close the conditional opened above. */ |
3295 | if (sentry) | |
3296 | expand_end_cond (); | |
961ec1a5 | 3297 | |
0aafb128 MM |
3298 | /* Save the sequence for later use. */ |
3299 | pi->initialization_sequence = get_insns (); | |
3300 | end_sequence (); | |
3301 | } | |
961ec1a5 | 3302 | |
0aafb128 MM |
3303 | /* Generate code to do the static destruction of DECL. If DECL may be |
3304 | initialized more than once in different object files, SENTRY is the | |
3305 | guard variable to check. PRIORITY is the priority for the | |
3306 | destruction. */ | |
3307 | ||
3308 | static void | |
3309 | do_static_destruction (decl, sentry, priority) | |
3310 | tree decl; | |
3311 | tree sentry; | |
3312 | int priority; | |
3313 | { | |
3314 | rtx new_insns; | |
3315 | priority_info pi; | |
961ec1a5 | 3316 | |
0aafb128 MM |
3317 | /* If we don't need a destructor, there's nothing to do. */ |
3318 | if (!TYPE_NEEDS_DESTRUCTOR (TREE_TYPE (decl))) | |
3319 | return; | |
3320 | ||
3321 | /* Get the priority information for this PRIORITY, */ | |
3322 | pi = get_priority_info (priority); | |
3323 | if (!pi->destruction_sequence) | |
3324 | start_sequence (); | |
3325 | else | |
3326 | push_to_sequence (pi->destruction_sequence); | |
3327 | ||
3328 | /* Start a new sequence to handle just this destruction. */ | |
3329 | start_sequence (); | |
3330 | ||
3331 | /* Tell the debugger that we are at the location of the static | |
3332 | variable in question. */ | |
3333 | emit_note (input_filename, lineno); | |
3334 | ||
0352cfc8 MM |
3335 | /* If there's a SENTRY, we only do the destruction if it is one, |
3336 | i.e., if we are the last to destroy it. */ | |
0aafb128 MM |
3337 | if (sentry) |
3338 | expand_start_cond (build_binary_op (EQ_EXPR, | |
3339 | build_unary_op (PREDECREMENT_EXPR, | |
3340 | sentry, | |
3341 | /*nonconvert=*/1), | |
0352cfc8 | 3342 | integer_zero_node), |
0aafb128 MM |
3343 | /*exit_flag=*/0); |
3344 | ||
3345 | /* Actually to the destruction. */ | |
3346 | expand_expr_stmt (build_cleanup (decl)); | |
3347 | ||
b94c0f4f | 3348 | /* Cleanup any deferred pops from function calls. This would be done |
0352cfc8 | 3349 | by expand_end_cond, but we also need it when !SENTRY, since we are |
b94c0f4f RH |
3350 | constructing these sequences by parts. */ |
3351 | do_pending_stack_adjust (); | |
3352 | ||
0aafb128 MM |
3353 | /* Close the conditional opened above. */ |
3354 | if (sentry) | |
3355 | expand_end_cond (); | |
3356 | ||
3357 | /* Insert the NEW_INSNS before the current insns. (Destructions are | |
3358 | run in reverse order of initializations.) */ | |
3359 | new_insns = gen_sequence (); | |
3360 | end_sequence (); | |
3361 | if (pi->destruction_sequence) | |
3362 | emit_insn_before (new_insns, pi->destruction_sequence); | |
3363 | else | |
3364 | emit_insn (new_insns); | |
3365 | ||
3366 | /* Save the sequence for later use. */ | |
3367 | pi->destruction_sequence = get_insns (); | |
3368 | end_sequence (); | |
961ec1a5 JM |
3369 | } |
3370 | ||
0aafb128 MM |
3371 | /* Add code to the static storage duration function that will handle |
3372 | DECL (a static variable that needs initializing and/or destruction) | |
3373 | with the indicated PRIORITY. If DECL needs initializing, INIT is | |
3374 | the initializer. */ | |
8d08fdba | 3375 | |
0aafb128 MM |
3376 | static void |
3377 | do_static_initialization_and_destruction (decl, init) | |
3378 | tree decl; | |
3379 | tree init; | |
8d08fdba | 3380 | { |
0aafb128 MM |
3381 | tree sentry = NULL_TREE; |
3382 | int priority; | |
8d08fdba | 3383 | |
0aafb128 MM |
3384 | /* Deal gracefully with error. */ |
3385 | if (decl == error_mark_node) | |
3386 | return; | |
8d2733ca | 3387 | |
0aafb128 MM |
3388 | /* The only things that can be initialized are variables. */ |
3389 | my_friendly_assert (TREE_CODE (decl) == VAR_DECL, 19990420); | |
5566b478 | 3390 | |
0aafb128 MM |
3391 | /* If this object is not defined, we don't need to do anything |
3392 | here. */ | |
3393 | if (DECL_EXTERNAL (decl)) | |
8d08fdba MS |
3394 | return; |
3395 | ||
0aafb128 MM |
3396 | /* Also, if the initializer already contains errors, we can bail out |
3397 | now. */ | |
3398 | if (init && TREE_CODE (init) == TREE_LIST | |
3399 | && value_member (error_mark_node, init)) | |
3400 | return; | |
8d08fdba | 3401 | |
0aafb128 MM |
3402 | /* Trick the compiler into thinking we are at the file and line |
3403 | where DECL was declared so that error-messages make sense, and so | |
3404 | that the debugger will show somewhat sensible file and line | |
3405 | information. */ | |
3406 | input_filename = DECL_SOURCE_FILE (decl); | |
3407 | lineno = DECL_SOURCE_LINE (decl); | |
8d08fdba | 3408 | |
0aafb128 | 3409 | /* Because of: |
d18c083e | 3410 | |
0aafb128 | 3411 | [class.access.spec] |
1139b3d8 | 3412 | |
0aafb128 MM |
3413 | Access control for implicit calls to the constructors, |
3414 | the conversion functions, or the destructor called to | |
3415 | create and destroy a static data member is performed as | |
3416 | if these calls appeared in the scope of the member's | |
3417 | class. | |
1139b3d8 | 3418 | |
0aafb128 MM |
3419 | we pretend we are in a static member function of the class of |
3420 | which the DECL is a member. */ | |
3421 | if (member_p (decl)) | |
3422 | { | |
3423 | DECL_CLASS_CONTEXT (current_function_decl) = DECL_CONTEXT (decl); | |
3424 | DECL_STATIC_FUNCTION_P (current_function_decl) = 1; | |
909e536a | 3425 | } |
0aafb128 MM |
3426 | |
3427 | /* We need a sentry if this is an object with external linkage that | |
3428 | might be initialized in more than one place. */ | |
3429 | if (TREE_PUBLIC (decl) && (DECL_COMMON (decl) | |
3430 | || DECL_ONE_ONLY (decl) | |
3431 | || DECL_WEAK (decl))) | |
3432 | sentry = get_sentry (DECL_ASSEMBLER_NAME (decl)); | |
3433 | ||
3434 | /* Generate the code to actually do the intialization and | |
3435 | destruction. */ | |
3436 | priority = DECL_INIT_PRIORITY (decl); | |
3437 | if (!priority) | |
3438 | priority = DEFAULT_INIT_PRIORITY; | |
3439 | do_static_initialization (decl, init, sentry, priority); | |
3440 | do_static_destruction (decl, sentry, priority); | |
3441 | ||
3442 | /* Now that we're done with DECL we don't need to pretend to be a | |
3443 | member of its class any longer. */ | |
3444 | DECL_CLASS_CONTEXT (current_function_decl) = NULL_TREE; | |
3445 | DECL_STATIC_FUNCTION_P (current_function_decl) = 0; | |
3446 | } | |
909e536a | 3447 | |
0aafb128 MM |
3448 | /* Generate a static constructor (if CONSTRUCTOR_P) or destructor |
3449 | (otherwise) that will initialize all gobal objects with static | |
3450 | storage duration having the indicated PRIORITY. */ | |
73aad9b9 | 3451 | |
0aafb128 MM |
3452 | static void |
3453 | generate_ctor_or_dtor_function (constructor_p, priority) | |
3454 | int constructor_p; | |
3455 | int priority; | |
3456 | { | |
3457 | char function_key; | |
3458 | tree arguments; | |
0352cfc8 | 3459 | size_t i; |
73aad9b9 | 3460 | |
0aafb128 MM |
3461 | /* We use `I' to indicate initialization and `D' to indicate |
3462 | destruction. */ | |
3463 | if (constructor_p) | |
3464 | function_key = 'I'; | |
3465 | else | |
3466 | function_key = 'D'; | |
73aad9b9 | 3467 | |
0aafb128 MM |
3468 | /* Begin the function. */ |
3469 | start_objects (function_key, priority); | |
2c73f9f5 | 3470 | |
0aafb128 MM |
3471 | /* Call the static storage duration function with appropriate |
3472 | arguments. */ | |
0352cfc8 MM |
3473 | for (i = 0; i < ssdf_decls_used; ++i) |
3474 | { | |
3475 | arguments = tree_cons (NULL_TREE, build_int_2 (priority, 0), | |
3476 | NULL_TREE); | |
3477 | arguments = tree_cons (NULL_TREE, build_int_2 (constructor_p, 0), | |
3478 | arguments); | |
3479 | expand_expr_stmt (build_function_call (VARRAY_TREE (ssdf_decls, i), | |
3480 | arguments)); | |
3481 | } | |
909e536a | 3482 | |
0aafb128 MM |
3483 | /* If we're generating code for the DEFAULT_INIT_PRIORITY, throw in |
3484 | calls to any functions marked with attributes indicating that | |
3485 | they should be called at initialization- or destruction-time. */ | |
3486 | if (priority == DEFAULT_INIT_PRIORITY) | |
3487 | { | |
3488 | tree fns; | |
3489 | ||
3490 | for (fns = constructor_p ? static_ctors : static_dtors; | |
3491 | fns; | |
3492 | fns = TREE_CHAIN (fns)) | |
3493 | expand_expr_stmt (build_function_call (TREE_VALUE (fns), NULL_TREE)); | |
3494 | } | |
28cbf42c | 3495 | |
0aafb128 MM |
3496 | /* Close out the function. */ |
3497 | finish_objects (function_key, priority); | |
3498 | } | |
44a8d0b3 | 3499 | |
0aafb128 | 3500 | /* Generate constructor and destructor functions for the priority |
0352cfc8 | 3501 | indicated by N. */ |
44a8d0b3 | 3502 | |
0aafb128 MM |
3503 | static int |
3504 | generate_ctor_and_dtor_functions_for_priority (n, data) | |
3505 | splay_tree_node n; | |
0352cfc8 | 3506 | void *data ATTRIBUTE_UNUSED; |
0aafb128 MM |
3507 | { |
3508 | int priority = (int) n->key; | |
3509 | priority_info pi = (priority_info) n->value; | |
0aafb128 MM |
3510 | |
3511 | /* Generate the functions themselves, but only if they are really | |
3512 | needed. */ | |
0352cfc8 | 3513 | if (pi->initializations_p |
0aafb128 MM |
3514 | || (priority == DEFAULT_INIT_PRIORITY && static_ctors)) |
3515 | generate_ctor_or_dtor_function (/*constructor_p=*/1, | |
3516 | priority); | |
0352cfc8 | 3517 | if (pi->destructions_p |
0aafb128 MM |
3518 | || (priority == DEFAULT_INIT_PRIORITY && static_dtors)) |
3519 | generate_ctor_or_dtor_function (/*constructor_p=*/0, | |
3520 | priority); | |
3521 | ||
3522 | /* Keep iterating. */ | |
3523 | return 0; | |
3524 | } | |
2ce3c6c6 | 3525 | |
0aafb128 MM |
3526 | /* This routine is called from the last rule in yyparse (). |
3527 | Its job is to create all the code needed to initialize and | |
3528 | destroy the global aggregates. We do the destruction | |
3529 | first, since that way we only need to reverse the decls once. */ | |
44a8d0b3 | 3530 | |
0aafb128 MM |
3531 | void |
3532 | finish_file () | |
3533 | { | |
3534 | extern int lineno; | |
3535 | int start_time, this_time; | |
0aafb128 MM |
3536 | tree vars; |
3537 | int reconsider; | |
3538 | size_t i; | |
8d08fdba | 3539 | |
0aafb128 | 3540 | at_eof = 1; |
faae18ab | 3541 | |
0aafb128 MM |
3542 | /* Bad parse errors. Just forget about it. */ |
3543 | if (! global_bindings_p () || current_class_type || decl_namespace_list) | |
3544 | return; | |
8d08fdba | 3545 | |
0aafb128 | 3546 | start_time = get_run_time (); |
ea735e02 | 3547 | |
0aafb128 MM |
3548 | /* Otherwise, GDB can get confused, because in only knows |
3549 | about source for LINENO-1 lines. */ | |
3550 | lineno -= 1; | |
5566b478 | 3551 | |
0aafb128 MM |
3552 | interface_unknown = 1; |
3553 | interface_only = 0; | |
ea735e02 | 3554 | |
0aafb128 MM |
3555 | /* We now have to write out all the stuff we put off writing out. |
3556 | These include: | |
d2e5ee5c | 3557 | |
0aafb128 MM |
3558 | o Template specializations that we have not yet instantiated, |
3559 | but which are needed. | |
3560 | o Initialization and destruction for non-local objects with | |
3561 | static storage duration. (Local objects with static storage | |
3562 | duration are initialized when their scope is first entered, | |
3563 | and are cleaned up via atexit.) | |
3564 | o Virtual function tables. | |
ea735e02 | 3565 | |
0aafb128 MM |
3566 | All of these may cause others to be needed. For example, |
3567 | instantiating one function may cause another to be needed, and | |
3568 | generating the intiailzer for an object may cause templates to be | |
3569 | instantiated, etc., etc. */ | |
8d08fdba MS |
3570 | |
3571 | this_time = get_run_time (); | |
3572 | parse_time -= this_time - start_time; | |
3573 | varconst_time += this_time - start_time; | |
8d08fdba | 3574 | start_time = get_run_time (); |
0aafb128 | 3575 | permanent_allocation (1); |
8d08fdba | 3576 | |
0aafb128 MM |
3577 | do |
3578 | { | |
c472cdfd MM |
3579 | /* Non-zero if we need a static storage duration function on |
3580 | this iteration through the loop. */ | |
3581 | int need_ssdf_p = 0; | |
0352cfc8 | 3582 | |
0aafb128 MM |
3583 | reconsider = 0; |
3584 | ||
1a6580ec MM |
3585 | /* If there are templates that we've put off instantiating, do |
3586 | them now. */ | |
0aafb128 MM |
3587 | instantiate_pending_templates (); |
3588 | ||
3589 | /* Write out signature-tables and virtual tables as required. | |
1a6580ec MM |
3590 | Note that writing out the virtual table for a template class |
3591 | may cause the instantiation of members of that class. */ | |
0aafb128 MM |
3592 | if (flag_handle_signatures |
3593 | && walk_globals (sigtable_decl_p, | |
3594 | finish_sigtable_vardecl, | |
3595 | /*data=*/0)) | |
3596 | reconsider = 1; | |
3597 | if (walk_globals (vtable_decl_p, | |
3598 | finish_vtable_vardecl, | |
3599 | /*data=*/0)) | |
3600 | reconsider = 1; | |
3601 | ||
0aafb128 MM |
3602 | /* The list of objects with static storage duration is built up |
3603 | in reverse order, so we reverse it here. We also clear | |
3604 | STATIC_AGGREGATES so that any new aggregates added during the | |
3605 | initialization of these will be initialized in the correct | |
3606 | order when we next come around the loop. */ | |
3607 | vars = nreverse (static_aggregates); | |
3608 | static_aggregates = NULL_TREE; | |
3609 | while (vars) | |
3610 | { | |
3611 | if (! TREE_ASM_WRITTEN (TREE_VALUE (vars))) | |
3612 | rest_of_decl_compilation (TREE_VALUE (vars), 0, 1, 1); | |
c472cdfd MM |
3613 | if (!need_ssdf_p) |
3614 | { | |
3615 | /* We need to start a new initialization function each | |
3616 | time through the loop. That's because we need to | |
3617 | know which vtables have been referenced, and | |
3618 | TREE_SYMBOL_REFERENCED isn't computed until a | |
3619 | function is finished, and written out. That's a | |
3620 | deficiency in the back-end. When this is fixed, | |
3621 | these initialization functions could all become | |
3622 | inline, with resulting performance improvements. */ | |
3623 | start_static_storage_duration_function (); | |
3624 | need_ssdf_p = 1; | |
3625 | } | |
3626 | ||
0aafb128 MM |
3627 | do_static_initialization_and_destruction (TREE_VALUE (vars), |
3628 | TREE_PURPOSE (vars)); | |
3629 | reconsider = 1; | |
3630 | vars = TREE_CHAIN (vars); | |
3631 | } | |
0aafb128 | 3632 | |
0352cfc8 MM |
3633 | /* Finish up the static storage duration function for this |
3634 | round. */ | |
c472cdfd MM |
3635 | if (need_ssdf_p) |
3636 | finish_static_storage_duration_function (); | |
0352cfc8 | 3637 | |
0aafb128 MM |
3638 | /* Go through the various inline functions, and see if any need |
3639 | synthesizing. */ | |
3640 | for (i = 0; i < saved_inlines_used; ++i) | |
3641 | { | |
3642 | tree decl = VARRAY_TREE (saved_inlines, i); | |
3643 | import_export_decl (decl); | |
3644 | if (DECL_ARTIFICIAL (decl) && ! DECL_INITIAL (decl) | |
3645 | && TREE_USED (decl) | |
3646 | && (! DECL_REALLY_EXTERN (decl) || DECL_INLINE (decl))) | |
3647 | { | |
3648 | /* Even though we're already at the top-level, we push | |
3649 | there again. That way, when we pop back a few lines | |
3650 | hence, all of our state is restored. Otherwise, | |
3651 | finish_function doesn't clean things up, and we end | |
3652 | up with CURRENT_FUNCTION_DECL set. */ | |
3653 | push_to_top_level (); | |
3654 | if (DECL_TINFO_FN_P (decl)) | |
3655 | synthesize_tinfo_fn (decl); | |
3656 | else | |
3657 | synthesize_method (decl); | |
3658 | pop_from_top_level (); | |
3659 | reconsider = 1; | |
3660 | } | |
3661 | } | |
0aafb128 | 3662 | |
0352cfc8 MM |
3663 | /* Mark all functions that might deal with exception-handling as |
3664 | referenced. */ | |
3665 | mark_all_runtime_matches (); | |
0aafb128 | 3666 | |
0352cfc8 MM |
3667 | /* We lie to the back-end, pretending that some functions are |
3668 | not defined when they really are. This keeps these functions | |
3669 | from being put out unncessarily. But, we must stop lying | |
3670 | when the functions are referenced, or if they are not comdat | |
3671 | since they need to be put out now. */ | |
4cb02ea1 MM |
3672 | for (i = 0; i < saved_inlines_used; ++i) |
3673 | { | |
3674 | tree decl = VARRAY_TREE (saved_inlines, i); | |
3675 | ||
3676 | if (DECL_NOT_REALLY_EXTERN (decl) | |
3677 | && DECL_INITIAL (decl) | |
0352cfc8 MM |
3678 | && (TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)) |
3679 | || !DECL_COMDAT (decl))) | |
4cb02ea1 MM |
3680 | DECL_EXTERNAL (decl) = 0; |
3681 | } | |
3682 | ||
3683 | if (saved_inlines_used | |
3684 | && wrapup_global_declarations (&VARRAY_TREE (saved_inlines, 0), | |
3685 | saved_inlines_used)) | |
3686 | reconsider = 1; | |
4cb02ea1 MM |
3687 | if (walk_namespaces (wrapup_globals_for_namespace, /*data=*/0)) |
3688 | reconsider = 1; | |
0aafb128 MM |
3689 | |
3690 | /* Static data members are just like namespace-scope globals. */ | |
3691 | for (i = 0; i < pending_statics_used; ++i) | |
3692 | { | |
3693 | tree decl = VARRAY_TREE (pending_statics, i); | |
3694 | if (TREE_ASM_WRITTEN (decl)) | |
3695 | continue; | |
3696 | import_export_decl (decl); | |
3697 | if (DECL_NOT_REALLY_EXTERN (decl) && ! DECL_IN_AGGR_P (decl)) | |
3698 | DECL_EXTERNAL (decl) = 0; | |
3699 | } | |
4cb02ea1 MM |
3700 | if (pending_statics |
3701 | && wrapup_global_declarations (&VARRAY_TREE (pending_statics, 0), | |
3702 | pending_statics_used)) | |
3703 | reconsider = 1; | |
0352cfc8 | 3704 | } |
0aafb128 | 3705 | while (reconsider); |
28cbf42c | 3706 | |
0352cfc8 MM |
3707 | /* We give C linkage to static constructors and destructors. */ |
3708 | push_lang_context (lang_name_c); | |
3709 | ||
3710 | /* Generate initialization and destruction functions for all | |
3711 | priorities for which they are required. */ | |
3712 | if (priority_info_map) | |
3713 | splay_tree_foreach (priority_info_map, | |
3714 | generate_ctor_and_dtor_functions_for_priority, | |
3715 | /*data=*/0); | |
3716 | ||
3717 | /* We're done with the splay-tree now. */ | |
3718 | if (priority_info_map) | |
3719 | splay_tree_delete (priority_info_map); | |
3720 | ||
3721 | /* We're done with static constructors, so we can go back to "C++" | |
3722 | linkage now. */ | |
3723 | pop_lang_context (); | |
3724 | ||
3725 | /* Now delete from the chain of variables all virtual function tables. | |
3726 | We output them all ourselves, because each will be treated | |
3727 | specially. */ | |
3728 | walk_globals (vtable_decl_p, prune_vtable_vardecl, /*data=*/0); | |
3729 | ||
0aafb128 MM |
3730 | /* Now, issue warnings about static, but not defined, functions, |
3731 | etc. */ | |
3732 | walk_namespaces (wrapup_globals_for_namespace, /*data=*/&reconsider); | |
b7484fbe | 3733 | |
faae18ab MS |
3734 | finish_repo (); |
3735 | ||
f71f87f9 MM |
3736 | /* The entire file is now complete. If requested, dump everything |
3737 | file. */ | |
3738 | if (flag_dump_translation_unit) | |
3739 | dump_node_to_file (global_namespace, flag_dump_translation_unit); | |
3740 | ||
8d08fdba MS |
3741 | this_time = get_run_time (); |
3742 | parse_time -= this_time - start_time; | |
3743 | varconst_time += this_time - start_time; | |
3744 | ||
3745 | if (flag_detailed_statistics) | |
27bb8339 JM |
3746 | { |
3747 | dump_tree_statistics (); | |
3748 | dump_time_statistics (); | |
3749 | } | |
8d08fdba | 3750 | } |
51c184be MS |
3751 | |
3752 | /* This is something of the form 'A()()()()()+1' that has turned out to be an | |
3753 | expr. Since it was parsed like a type, we need to wade through and fix | |
3754 | that. Unfortunately, since operator() is left-associative, we can't use | |
3755 | tail recursion. In the above example, TYPE is `A', and DECL is | |
3756 | `()()()()()'. | |
3757 | ||
3758 | Maybe this shouldn't be recursive, but how often will it actually be | |
3759 | used? (jason) */ | |
e92cc029 | 3760 | |
51c184be MS |
3761 | tree |
3762 | reparse_absdcl_as_expr (type, decl) | |
3763 | tree type, decl; | |
3764 | { | |
3765 | /* do build_functional_cast (type, NULL_TREE) at bottom */ | |
3766 | if (TREE_OPERAND (decl, 0) == NULL_TREE) | |
3767 | return build_functional_cast (type, NULL_TREE); | |
3768 | ||
3769 | /* recurse */ | |
d8f8dca1 | 3770 | decl = reparse_absdcl_as_expr (type, TREE_OPERAND (decl, 0)); |
51c184be | 3771 | |
4ac14744 | 3772 | decl = build_x_function_call (decl, NULL_TREE, current_class_ref); |
51c184be | 3773 | |
66543169 NS |
3774 | if (TREE_CODE (decl) == CALL_EXPR |
3775 | && (! TREE_TYPE (decl) | |
3776 | || TREE_CODE (TREE_TYPE (decl)) != VOID_TYPE)) | |
51c184be MS |
3777 | decl = require_complete_type (decl); |
3778 | ||
3779 | return decl; | |
3780 | } | |
3781 | ||
3782 | /* This is something of the form `int ((int)(int)(int)1)' that has turned | |
3783 | out to be an expr. Since it was parsed like a type, we need to wade | |
3784 | through and fix that. Since casts are right-associative, we are | |
3785 | reversing the order, so we don't have to recurse. | |
3786 | ||
3787 | In the above example, DECL is the `(int)(int)(int)', and EXPR is the | |
3788 | `1'. */ | |
e92cc029 | 3789 | |
51c184be MS |
3790 | tree |
3791 | reparse_absdcl_as_casts (decl, expr) | |
3792 | tree decl, expr; | |
3793 | { | |
3794 | tree type; | |
3795 | ||
4ac14744 MS |
3796 | if (TREE_CODE (expr) == CONSTRUCTOR |
3797 | && TREE_TYPE (expr) == 0) | |
51c184be MS |
3798 | { |
3799 | type = groktypename (TREE_VALUE (TREE_OPERAND (decl, 1))); | |
3800 | decl = TREE_OPERAND (decl, 0); | |
3801 | ||
3802 | if (IS_SIGNATURE (type)) | |
3803 | { | |
8251199e | 3804 | error ("cast specifies signature type"); |
51c184be MS |
3805 | return error_mark_node; |
3806 | } | |
3807 | ||
3808 | expr = digest_init (type, expr, (tree *) 0); | |
3809 | if (TREE_CODE (type) == ARRAY_TYPE && TYPE_SIZE (type) == 0) | |
3810 | { | |
3811 | int failure = complete_array_type (type, expr, 1); | |
3812 | if (failure) | |
3813 | my_friendly_abort (78); | |
3814 | } | |
3815 | } | |
3816 | ||
3817 | while (decl) | |
3818 | { | |
3819 | type = groktypename (TREE_VALUE (TREE_OPERAND (decl, 1))); | |
3820 | decl = TREE_OPERAND (decl, 0); | |
faf5394a | 3821 | expr = build_c_cast (type, expr); |
51c184be MS |
3822 | } |
3823 | ||
1d02ac83 JM |
3824 | if (warn_old_style_cast && ! in_system_header |
3825 | && current_lang_name != lang_name_c) | |
8251199e | 3826 | warning ("use of old-style cast"); |
0c4b14c4 | 3827 | |
51c184be MS |
3828 | return expr; |
3829 | } | |
3830 | ||
e92cc029 | 3831 | /* Given plain tree nodes for an expression, build up the full semantics. */ |
5566b478 MS |
3832 | |
3833 | tree | |
3834 | build_expr_from_tree (t) | |
3835 | tree t; | |
51c184be | 3836 | { |
5566b478 MS |
3837 | if (t == NULL_TREE || t == error_mark_node) |
3838 | return t; | |
3839 | ||
3840 | switch (TREE_CODE (t)) | |
51c184be MS |
3841 | { |
3842 | case IDENTIFIER_NODE: | |
a759e627 | 3843 | return do_identifier (t, 0, NULL_TREE); |
5566b478 MS |
3844 | |
3845 | case LOOKUP_EXPR: | |
3846 | if (LOOKUP_EXPR_GLOBAL (t)) | |
3847 | return do_scoped_id (TREE_OPERAND (t, 0), 0); | |
3848 | else | |
a759e627 | 3849 | return do_identifier (TREE_OPERAND (t, 0), 0, NULL_TREE); |
5566b478 | 3850 | |
386b8a85 | 3851 | case TEMPLATE_ID_EXPR: |
00d3396f JM |
3852 | return (lookup_template_function |
3853 | (build_expr_from_tree (TREE_OPERAND (t, 0)), | |
3854 | build_expr_from_tree (TREE_OPERAND (t, 1)))); | |
386b8a85 | 3855 | |
51c184be MS |
3856 | case INDIRECT_REF: |
3857 | return build_x_indirect_ref | |
5566b478 MS |
3858 | (build_expr_from_tree (TREE_OPERAND (t, 0)), "unary *"); |
3859 | ||
3860 | case CAST_EXPR: | |
3861 | return build_functional_cast | |
3862 | (TREE_TYPE (t), build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3863 | ||
3864 | case REINTERPRET_CAST_EXPR: | |
3865 | return build_reinterpret_cast | |
3866 | (TREE_TYPE (t), build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3867 | ||
e92cc029 MS |
3868 | case CONST_CAST_EXPR: |
3869 | return build_const_cast | |
3870 | (TREE_TYPE (t), build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3871 | ||
3872 | case DYNAMIC_CAST_EXPR: | |
3873 | return build_dynamic_cast | |
3874 | (TREE_TYPE (t), build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3875 | ||
3876 | case STATIC_CAST_EXPR: | |
3877 | return build_static_cast | |
3878 | (TREE_TYPE (t), build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3879 | ||
5566b478 MS |
3880 | case PREDECREMENT_EXPR: |
3881 | case PREINCREMENT_EXPR: | |
3882 | case POSTDECREMENT_EXPR: | |
3883 | case POSTINCREMENT_EXPR: | |
3884 | case NEGATE_EXPR: | |
51c184be | 3885 | case BIT_NOT_EXPR: |
5566b478 MS |
3886 | case ABS_EXPR: |
3887 | case TRUTH_NOT_EXPR: | |
3888 | case ADDR_EXPR: | |
3889 | case CONVERT_EXPR: /* Unary + */ | |
fc378698 MS |
3890 | if (TREE_TYPE (t)) |
3891 | return t; | |
5566b478 MS |
3892 | return build_x_unary_op (TREE_CODE (t), |
3893 | build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3894 | ||
3895 | case PLUS_EXPR: | |
3896 | case MINUS_EXPR: | |
3897 | case MULT_EXPR: | |
3898 | case TRUNC_DIV_EXPR: | |
3899 | case CEIL_DIV_EXPR: | |
3900 | case FLOOR_DIV_EXPR: | |
3901 | case ROUND_DIV_EXPR: | |
3902 | case EXACT_DIV_EXPR: | |
3903 | case BIT_AND_EXPR: | |
3904 | case BIT_ANDTC_EXPR: | |
3905 | case BIT_IOR_EXPR: | |
3906 | case BIT_XOR_EXPR: | |
3907 | case TRUNC_MOD_EXPR: | |
3908 | case FLOOR_MOD_EXPR: | |
3909 | case TRUTH_ANDIF_EXPR: | |
3910 | case TRUTH_ORIF_EXPR: | |
3911 | case TRUTH_AND_EXPR: | |
3912 | case TRUTH_OR_EXPR: | |
3913 | case RSHIFT_EXPR: | |
3914 | case LSHIFT_EXPR: | |
3915 | case RROTATE_EXPR: | |
3916 | case LROTATE_EXPR: | |
3917 | case EQ_EXPR: | |
3918 | case NE_EXPR: | |
3919 | case MAX_EXPR: | |
3920 | case MIN_EXPR: | |
3921 | case LE_EXPR: | |
3922 | case GE_EXPR: | |
3923 | case LT_EXPR: | |
3924 | case GT_EXPR: | |
3925 | case MEMBER_REF: | |
3926 | return build_x_binary_op | |
3927 | (TREE_CODE (t), | |
3928 | build_expr_from_tree (TREE_OPERAND (t, 0)), | |
3929 | build_expr_from_tree (TREE_OPERAND (t, 1))); | |
3930 | ||
3931 | case DOTSTAR_EXPR: | |
3932 | return build_m_component_ref | |
3933 | (build_expr_from_tree (TREE_OPERAND (t, 0)), | |
3934 | build_expr_from_tree (TREE_OPERAND (t, 1))); | |
3935 | ||
a28e3c7f | 3936 | case SCOPE_REF: |
5566b478 MS |
3937 | return build_offset_ref (TREE_OPERAND (t, 0), TREE_OPERAND (t, 1)); |
3938 | ||
a28e3c7f | 3939 | case ARRAY_REF: |
5566b478 MS |
3940 | if (TREE_OPERAND (t, 0) == NULL_TREE) |
3941 | /* new-type-id */ | |
3942 | return build_parse_node (ARRAY_REF, NULL_TREE, | |
3943 | build_expr_from_tree (TREE_OPERAND (t, 1))); | |
3944 | return grok_array_decl (build_expr_from_tree (TREE_OPERAND (t, 0)), | |
3945 | build_expr_from_tree (TREE_OPERAND (t, 1))); | |
3946 | ||
3947 | case SIZEOF_EXPR: | |
abff8e06 | 3948 | case ALIGNOF_EXPR: |
5566b478 MS |
3949 | { |
3950 | tree r = build_expr_from_tree (TREE_OPERAND (t, 0)); | |
3951 | if (TREE_CODE_CLASS (TREE_CODE (r)) != 't') | |
3952 | r = TREE_TYPE (r); | |
abff8e06 | 3953 | return TREE_CODE (t) == SIZEOF_EXPR ? c_sizeof (r) : c_alignof (r); |
5566b478 MS |
3954 | } |
3955 | ||
3956 | case MODOP_EXPR: | |
3957 | return build_x_modify_expr | |
3958 | (build_expr_from_tree (TREE_OPERAND (t, 0)), | |
3959 | TREE_CODE (TREE_OPERAND (t, 1)), | |
3960 | build_expr_from_tree (TREE_OPERAND (t, 2))); | |
3961 | ||
3962 | case ARROW_EXPR: | |
3963 | return build_x_arrow | |
3964 | (build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3965 | ||
3966 | case NEW_EXPR: | |
3967 | return build_new | |
3968 | (build_expr_from_tree (TREE_OPERAND (t, 0)), | |
3969 | build_expr_from_tree (TREE_OPERAND (t, 1)), | |
3970 | build_expr_from_tree (TREE_OPERAND (t, 2)), | |
3971 | NEW_EXPR_USE_GLOBAL (t)); | |
3972 | ||
3973 | case DELETE_EXPR: | |
3974 | return delete_sanity | |
3975 | (build_expr_from_tree (TREE_OPERAND (t, 0)), | |
3976 | build_expr_from_tree (TREE_OPERAND (t, 1)), | |
3977 | DELETE_EXPR_USE_VEC (t), DELETE_EXPR_USE_GLOBAL (t)); | |
3978 | ||
3979 | case COMPOUND_EXPR: | |
3980 | if (TREE_OPERAND (t, 1) == NULL_TREE) | |
3981 | return build_x_compound_expr | |
3982 | (build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3983 | else | |
3984 | my_friendly_abort (42); | |
3985 | ||
3986 | case METHOD_CALL_EXPR: | |
3987 | if (TREE_CODE (TREE_OPERAND (t, 0)) == SCOPE_REF) | |
3988 | { | |
3989 | tree ref = TREE_OPERAND (t, 0); | |
3990 | return build_scoped_method_call | |
3991 | (build_expr_from_tree (TREE_OPERAND (t, 1)), | |
3992 | build_expr_from_tree (TREE_OPERAND (ref, 0)), | |
3993 | TREE_OPERAND (ref, 1), | |
3994 | build_expr_from_tree (TREE_OPERAND (t, 2))); | |
3995 | } | |
d8f8dca1 MM |
3996 | else |
3997 | { | |
3998 | tree fn = TREE_OPERAND (t, 0); | |
074917ba | 3999 | |
d8f8dca1 MM |
4000 | /* We can get a TEMPLATE_ID_EXPR here on code like: |
4001 | ||
4002 | x->f<2>(); | |
4003 | ||
4004 | so we must resolve that. However, we can also get things | |
4005 | like a BIT_NOT_EXPR here, when referring to a destructor, | |
4006 | and things like that are not correctly resolved by | |
4007 | build_expr_from_tree. So, just use build_expr_from_tree | |
4008 | when we really need it. */ | |
4009 | if (TREE_CODE (fn) == TEMPLATE_ID_EXPR) | |
074917ba JM |
4010 | fn = lookup_template_function |
4011 | (TREE_OPERAND (fn, 0), | |
4012 | build_expr_from_tree (TREE_OPERAND (fn, 1))); | |
d8f8dca1 MM |
4013 | |
4014 | return build_method_call | |
4015 | (build_expr_from_tree (TREE_OPERAND (t, 1)), | |
4016 | fn, | |
4017 | build_expr_from_tree (TREE_OPERAND (t, 2)), | |
4018 | NULL_TREE, LOOKUP_NORMAL); | |
4019 | } | |
5566b478 MS |
4020 | |
4021 | case CALL_EXPR: | |
4022 | if (TREE_CODE (TREE_OPERAND (t, 0)) == SCOPE_REF) | |
4023 | { | |
4024 | tree ref = TREE_OPERAND (t, 0); | |
4025 | return build_member_call | |
4026 | (build_expr_from_tree (TREE_OPERAND (ref, 0)), | |
4027 | TREE_OPERAND (ref, 1), | |
4028 | build_expr_from_tree (TREE_OPERAND (t, 1))); | |
4029 | } | |
4030 | else | |
4031 | { | |
4032 | tree name = TREE_OPERAND (t, 0); | |
a759e627 ML |
4033 | tree id; |
4034 | tree args = build_expr_from_tree (TREE_OPERAND (t, 1)); | |
4035 | if (args != NULL_TREE && TREE_CODE (name) == LOOKUP_EXPR | |
4036 | && !LOOKUP_EXPR_GLOBAL (name) | |
4037 | && TREE_CODE ((id = TREE_OPERAND (name, 0))) == IDENTIFIER_NODE | |
4038 | && (!current_class_type | |
4039 | || !lookup_member (current_class_type, id, 0, 0))) | |
4040 | { | |
4041 | /* Do Koenig lookup if there are no class members. */ | |
4042 | name = do_identifier (id, 0, args); | |
4043 | } | |
4044 | else if (TREE_CODE (name) == TEMPLATE_ID_EXPR | |
00d3396f | 4045 | || ! really_overloaded_fn (name)) |
5566b478 | 4046 | name = build_expr_from_tree (name); |
a759e627 | 4047 | return build_x_function_call (name, args, current_class_ref); |
5566b478 MS |
4048 | } |
4049 | ||
4050 | case COND_EXPR: | |
4051 | return build_x_conditional_expr | |
4052 | (build_expr_from_tree (TREE_OPERAND (t, 0)), | |
4053 | build_expr_from_tree (TREE_OPERAND (t, 1)), | |
4054 | build_expr_from_tree (TREE_OPERAND (t, 2))); | |
4055 | ||
4056 | case TREE_LIST: | |
4057 | { | |
4058 | tree purpose, value, chain; | |
4059 | ||
4060 | if (t == void_list_node) | |
4061 | return t; | |
4062 | ||
4063 | purpose = TREE_PURPOSE (t); | |
4064 | if (purpose) | |
4065 | purpose = build_expr_from_tree (purpose); | |
4066 | value = TREE_VALUE (t); | |
4067 | if (value) | |
4068 | value = build_expr_from_tree (value); | |
4069 | chain = TREE_CHAIN (t); | |
4070 | if (chain && chain != void_type_node) | |
4071 | chain = build_expr_from_tree (chain); | |
e66d884e | 4072 | return expr_tree_cons (purpose, value, chain); |
5566b478 MS |
4073 | } |
4074 | ||
4075 | case COMPONENT_REF: | |
74322f31 MM |
4076 | { |
4077 | tree object = build_expr_from_tree (TREE_OPERAND (t, 0)); | |
4078 | tree field = TREE_OPERAND (t, 1); | |
4079 | ||
4080 | /* We use a COMPONENT_REF to indicate things of the form `x.b' | |
4081 | and `x.A::b'. We must distinguish between those cases | |
4082 | here. */ | |
4083 | if (TREE_CODE (field) == SCOPE_REF) | |
4084 | return build_object_ref (object, | |
4085 | TREE_OPERAND (field, 0), | |
4086 | TREE_OPERAND (field, 1)); | |
4087 | else | |
4088 | return build_x_component_ref (object, field, | |
4089 | NULL_TREE, 1); | |
4090 | } | |
4091 | ||
fc378698 MS |
4092 | case THROW_EXPR: |
4093 | return build_throw (build_expr_from_tree (TREE_OPERAND (t, 0))); | |
4094 | ||
5156628f MS |
4095 | case CONSTRUCTOR: |
4096 | { | |
2fcdec57 JM |
4097 | tree r; |
4098 | ||
4099 | /* digest_init will do the wrong thing if we let it. */ | |
4100 | if (TREE_TYPE (t) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t))) | |
4101 | return t; | |
4102 | ||
4103 | r = build_nt (CONSTRUCTOR, NULL_TREE, | |
4104 | build_expr_from_tree (CONSTRUCTOR_ELTS (t))); | |
8452b1d3 | 4105 | TREE_HAS_CONSTRUCTOR (r) = TREE_HAS_CONSTRUCTOR (t); |
5156628f MS |
4106 | |
4107 | if (TREE_TYPE (t)) | |
4108 | return digest_init (TREE_TYPE (t), r, 0); | |
4109 | return r; | |
4110 | } | |
4111 | ||
4112 | case TYPEID_EXPR: | |
e9f32eb5 MS |
4113 | if (TREE_CODE_CLASS (TREE_CODE (TREE_OPERAND (t, 0))) == 't') |
4114 | return get_typeid (TREE_OPERAND (t, 0)); | |
5156628f MS |
4115 | return build_x_typeid (build_expr_from_tree (TREE_OPERAND (t, 0))); |
4116 | ||
9a3b49ac MS |
4117 | case VAR_DECL: |
4118 | return convert_from_reference (t); | |
4119 | ||
8926095f | 4120 | default: |
5566b478 | 4121 | return t; |
51c184be | 4122 | } |
51c184be MS |
4123 | } |
4124 | ||
4125 | /* This is something of the form `int (*a)++' that has turned out to be an | |
4126 | expr. It was only converted into parse nodes, so we need to go through | |
4127 | and build up the semantics. Most of the work is done by | |
5566b478 | 4128 | build_expr_from_tree, above. |
51c184be MS |
4129 | |
4130 | In the above example, TYPE is `int' and DECL is `*a'. */ | |
e92cc029 | 4131 | |
51c184be MS |
4132 | tree |
4133 | reparse_decl_as_expr (type, decl) | |
4134 | tree type, decl; | |
4135 | { | |
5566b478 | 4136 | decl = build_expr_from_tree (decl); |
e3417fcd | 4137 | if (type) |
e66d884e | 4138 | return build_functional_cast (type, build_expr_list (NULL_TREE, decl)); |
e3417fcd MS |
4139 | else |
4140 | return decl; | |
51c184be MS |
4141 | } |
4142 | ||
4143 | /* This is something of the form `int (*a)' that has turned out to be a | |
4144 | decl. It was only converted into parse nodes, so we need to do the | |
e92cc029 | 4145 | checking that make_{pointer,reference}_declarator do. */ |
51c184be MS |
4146 | |
4147 | tree | |
4148 | finish_decl_parsing (decl) | |
4149 | tree decl; | |
4150 | { | |
8926095f MS |
4151 | extern int current_class_depth; |
4152 | ||
51c184be MS |
4153 | switch (TREE_CODE (decl)) |
4154 | { | |
4155 | case IDENTIFIER_NODE: | |
4156 | return decl; | |
4157 | case INDIRECT_REF: | |
4158 | return make_pointer_declarator | |
4159 | (NULL_TREE, finish_decl_parsing (TREE_OPERAND (decl, 0))); | |
4160 | case ADDR_EXPR: | |
4161 | return make_reference_declarator | |
4162 | (NULL_TREE, finish_decl_parsing (TREE_OPERAND (decl, 0))); | |
4163 | case BIT_NOT_EXPR: | |
4164 | TREE_OPERAND (decl, 0) = finish_decl_parsing (TREE_OPERAND (decl, 0)); | |
4165 | return decl; | |
8926095f | 4166 | case SCOPE_REF: |
a4443a08 | 4167 | push_nested_class (TREE_TYPE (TREE_OPERAND (decl, 0)), 3); |
8926095f MS |
4168 | TREE_COMPLEXITY (decl) = current_class_depth; |
4169 | return decl; | |
a28e3c7f MS |
4170 | case ARRAY_REF: |
4171 | TREE_OPERAND (decl, 0) = finish_decl_parsing (TREE_OPERAND (decl, 0)); | |
4172 | return decl; | |
52fbc847 JM |
4173 | case TREE_LIST: |
4174 | /* For attribute handling. */ | |
4175 | TREE_VALUE (decl) = finish_decl_parsing (TREE_VALUE (decl)); | |
4176 | return decl; | |
8926095f MS |
4177 | default: |
4178 | my_friendly_abort (5); | |
4179 | return NULL_TREE; | |
51c184be MS |
4180 | } |
4181 | } | |
2986ae00 MS |
4182 | |
4183 | tree | |
4184 | check_cp_case_value (value) | |
4185 | tree value; | |
4186 | { | |
4187 | if (value == NULL_TREE) | |
4188 | return value; | |
4189 | ||
5566b478 MS |
4190 | /* Strip NON_LVALUE_EXPRs since we aren't using as an lvalue. */ |
4191 | STRIP_TYPE_NOPS (value); | |
2986ae00 MS |
4192 | |
4193 | if (TREE_READONLY_DECL_P (value)) | |
4194 | { | |
4195 | value = decl_constant_value (value); | |
5566b478 | 4196 | STRIP_TYPE_NOPS (value); |
2986ae00 MS |
4197 | } |
4198 | value = fold (value); | |
4199 | ||
4200 | if (TREE_CODE (value) != INTEGER_CST | |
4201 | && value != error_mark_node) | |
4202 | { | |
8251199e | 4203 | cp_error ("case label `%E' does not reduce to an integer constant", |
2986ae00 MS |
4204 | value); |
4205 | value = error_mark_node; | |
4206 | } | |
4207 | else | |
4208 | /* Promote char or short to int. */ | |
4209 | value = default_conversion (value); | |
4210 | ||
4211 | constant_expression_warning (value); | |
4212 | ||
4213 | return value; | |
4214 | } | |
6060a796 | 4215 | |
2c73f9f5 ML |
4216 | /* Return 1 if root encloses child. */ |
4217 | ||
30394414 JM |
4218 | static int |
4219 | is_namespace_ancestor (root, child) | |
4220 | tree root, child; | |
4221 | { | |
4222 | if (root == child) | |
4223 | return 1; | |
4224 | if (root == global_namespace) | |
4225 | return 1; | |
4226 | if (child == global_namespace) | |
4227 | return 0; | |
cb0dbb9a | 4228 | return is_namespace_ancestor (root, CP_DECL_CONTEXT (child)); |
30394414 JM |
4229 | } |
4230 | ||
4231 | ||
2c73f9f5 ML |
4232 | /* Return the namespace that is the common ancestor |
4233 | of two given namespaces. */ | |
4234 | ||
9ed182dc | 4235 | tree |
30394414 JM |
4236 | namespace_ancestor (ns1, ns2) |
4237 | tree ns1, ns2; | |
4238 | { | |
4239 | if (is_namespace_ancestor (ns1, ns2)) | |
4240 | return ns1; | |
a41461c9 | 4241 | return namespace_ancestor (CP_DECL_CONTEXT (ns1), ns2); |
30394414 JM |
4242 | } |
4243 | ||
4244 | /* Insert used into the using list of user. Set indirect_flag if this | |
4245 | directive is not directly from the source. Also find the common | |
4246 | ancestor and let our users know about the new namespace */ | |
4247 | static void | |
4248 | add_using_namespace (user, used, indirect) | |
4249 | tree user; | |
4250 | tree used; | |
4251 | int indirect; | |
4252 | { | |
52c11ef6 | 4253 | tree t; |
2c73f9f5 | 4254 | /* Using oneself is a no-op. */ |
30394414 JM |
4255 | if (user == used) |
4256 | return; | |
4257 | my_friendly_assert (TREE_CODE (user) == NAMESPACE_DECL, 380); | |
4258 | my_friendly_assert (TREE_CODE (used) == NAMESPACE_DECL, 380); | |
2c73f9f5 | 4259 | /* Check if we already have this. */ |
52c11ef6 JM |
4260 | t = purpose_member (used, DECL_NAMESPACE_USING (user)); |
4261 | if (t != NULL_TREE) | |
4262 | { | |
4263 | if (!indirect) | |
4264 | /* Promote to direct usage. */ | |
4265 | TREE_INDIRECT_USING (t) = 0; | |
4266 | return; | |
4267 | } | |
30394414 | 4268 | |
2c73f9f5 | 4269 | /* Add used to the user's using list. */ |
30394414 JM |
4270 | DECL_NAMESPACE_USING (user) |
4271 | = perm_tree_cons (used, namespace_ancestor (user, used), | |
4272 | DECL_NAMESPACE_USING (user)); | |
4273 | ||
4274 | TREE_INDIRECT_USING (DECL_NAMESPACE_USING (user)) = indirect; | |
4275 | ||
2c73f9f5 | 4276 | /* Add user to the used's users list. */ |
30394414 JM |
4277 | DECL_NAMESPACE_USERS (used) |
4278 | = perm_tree_cons (user, 0, DECL_NAMESPACE_USERS (used)); | |
85c6cbaf ML |
4279 | |
4280 | /* Recursively add all namespaces used. */ | |
52c11ef6 | 4281 | for (t = DECL_NAMESPACE_USING (used); t; t = TREE_CHAIN (t)) |
30394414 | 4282 | /* indirect usage */ |
52c11ef6 | 4283 | add_using_namespace (user, TREE_PURPOSE (t), 1); |
85c6cbaf ML |
4284 | |
4285 | /* Tell everyone using us about the new used namespaces. */ | |
52c11ef6 JM |
4286 | for (t = DECL_NAMESPACE_USERS (user); t; t = TREE_CHAIN (t)) |
4287 | add_using_namespace (TREE_PURPOSE (t), used, 1); | |
30394414 JM |
4288 | } |
4289 | ||
5eea678f JM |
4290 | /* Combines two sets of overloaded functions into an OVERLOAD chain, removing |
4291 | duplicates. The first list becomes the tail of the result. | |
4292 | ||
61a127b3 MM |
4293 | The algorithm is O(n^2). We could get this down to O(n log n) by |
4294 | doing a sort on the addresses of the functions, if that becomes | |
4295 | necessary. */ | |
2c73f9f5 ML |
4296 | |
4297 | static tree | |
4298 | merge_functions (s1, s2) | |
4299 | tree s1; | |
4300 | tree s2; | |
4301 | { | |
5eea678f JM |
4302 | for (; s2; s2 = OVL_NEXT (s2)) |
4303 | { | |
4304 | tree fn = OVL_CURRENT (s2); | |
4305 | if (! ovl_member (fn, s1)) | |
4306 | s1 = build_overload (fn, s1); | |
4307 | } | |
2c73f9f5 ML |
4308 | return s1; |
4309 | } | |
4310 | ||
30394414 JM |
4311 | /* This should return an error not all definitions define functions. |
4312 | It is not an error if we find two functions with exactly the | |
4313 | same signature, only if these are selected in overload resolution. | |
2c73f9f5 | 4314 | old is the current set of bindings, new the freshly-found binding. |
30394414 JM |
4315 | XXX Do we want to give *all* candidates in case of ambiguity? |
4316 | XXX In what way should I treat extern declarations? | |
4317 | XXX I don't want to repeat the entire duplicate_decls here */ | |
2c73f9f5 | 4318 | |
30394414 | 4319 | static tree |
52c11ef6 | 4320 | ambiguous_decl (name, old, new, flags) |
2c73f9f5 ML |
4321 | tree name; |
4322 | tree old; | |
4323 | tree new; | |
52c11ef6 | 4324 | int flags; |
30394414 | 4325 | { |
52c11ef6 | 4326 | tree val, type; |
2c73f9f5 ML |
4327 | my_friendly_assert (old != NULL_TREE, 393); |
4328 | /* Copy the value. */ | |
52c11ef6 JM |
4329 | val = BINDING_VALUE (new); |
4330 | if (val) | |
4331 | switch (TREE_CODE (val)) | |
4332 | { | |
4333 | case TEMPLATE_DECL: | |
4334 | /* If we expect types or namespaces, and not templates, | |
4335 | or this is not a template class. */ | |
4336 | if (LOOKUP_QUALIFIERS_ONLY (flags) | |
c592d5d2 | 4337 | && !DECL_CLASS_TEMPLATE_P (val)) |
52c11ef6 JM |
4338 | val = NULL_TREE; |
4339 | break; | |
4340 | case TYPE_DECL: | |
4341 | if (LOOKUP_NAMESPACES_ONLY (flags)) | |
4342 | val = NULL_TREE; | |
4343 | break; | |
4344 | case NAMESPACE_DECL: | |
4345 | if (LOOKUP_TYPES_ONLY (flags)) | |
4346 | val = NULL_TREE; | |
4347 | break; | |
4348 | default: | |
4349 | if (LOOKUP_QUALIFIERS_ONLY (flags)) | |
4350 | val = NULL_TREE; | |
4351 | } | |
4352 | ||
2c73f9f5 | 4353 | if (!BINDING_VALUE (old)) |
52c11ef6 JM |
4354 | BINDING_VALUE (old) = val; |
4355 | else if (val && val != BINDING_VALUE (old)) | |
2c73f9f5 ML |
4356 | { |
4357 | if (is_overloaded_fn (BINDING_VALUE (old)) | |
52c11ef6 | 4358 | && is_overloaded_fn (val)) |
2c73f9f5 ML |
4359 | { |
4360 | BINDING_VALUE (old) = merge_functions (BINDING_VALUE (old), | |
52c11ef6 | 4361 | val); |
2c73f9f5 ML |
4362 | } |
4363 | else | |
4364 | { | |
4365 | /* Some declarations are functions, some are not. */ | |
52c11ef6 JM |
4366 | if (flags & LOOKUP_COMPLAIN) |
4367 | { | |
2642b9bf JM |
4368 | /* If we've already given this error for this lookup, |
4369 | BINDING_VALUE (old) is error_mark_node, so let's not | |
4370 | repeat ourselves. */ | |
4371 | if (BINDING_VALUE (old) != error_mark_node) | |
4372 | { | |
4373 | cp_error ("use of `%D' is ambiguous", name); | |
4374 | cp_error_at (" first declared as `%#D' here", | |
4375 | BINDING_VALUE (old)); | |
4376 | } | |
8251199e | 4377 | cp_error_at (" also declared as `%#D' here", val); |
52c11ef6 | 4378 | } |
2c73f9f5 ML |
4379 | return error_mark_node; |
4380 | } | |
4381 | } | |
4382 | /* ... and copy the type. */ | |
52c11ef6 JM |
4383 | type = BINDING_TYPE (new); |
4384 | if (LOOKUP_NAMESPACES_ONLY (flags)) | |
4385 | type = NULL_TREE; | |
2c73f9f5 | 4386 | if (!BINDING_TYPE (old)) |
52c11ef6 | 4387 | BINDING_TYPE (old) = type; |
1c35f5b6 | 4388 | else if (type && BINDING_TYPE (old) != type) |
30394414 | 4389 | { |
52c11ef6 JM |
4390 | if (flags & LOOKUP_COMPLAIN) |
4391 | { | |
8251199e JM |
4392 | cp_error ("`%D' denotes an ambiguous type",name); |
4393 | cp_error_at (" first type here", BINDING_TYPE (old)); | |
4394 | cp_error_at (" other type here", type); | |
52c11ef6 | 4395 | } |
30394414 | 4396 | } |
2c73f9f5 | 4397 | return old; |
30394414 JM |
4398 | } |
4399 | ||
2c73f9f5 | 4400 | /* Add the bindings of name in used namespaces to val. |
ea9635c7 | 4401 | The using list is defined by usings, and the lookup goes to scope. |
2c73f9f5 ML |
4402 | Returns zero on errors. */ |
4403 | ||
4404 | int | |
52c11ef6 | 4405 | lookup_using_namespace (name, val, usings, scope, flags) |
ea9635c7 | 4406 | tree name, val, usings, scope; |
52c11ef6 | 4407 | int flags; |
30394414 JM |
4408 | { |
4409 | tree iter; | |
4410 | tree val1; | |
ea9635c7 ML |
4411 | /* Iterate over all used namespaces in current, searching for using |
4412 | directives of scope. */ | |
4413 | for (iter = usings; iter; iter = TREE_CHAIN (iter)) | |
4414 | if (TREE_VALUE (iter) == scope) | |
4415 | { | |
4416 | val1 = binding_for_name (name, TREE_PURPOSE (iter)); | |
4417 | /* Resolve ambiguities. */ | |
52c11ef6 | 4418 | val = ambiguous_decl (name, val, val1, flags); |
ea9635c7 | 4419 | } |
2c73f9f5 | 4420 | return val != error_mark_node; |
30394414 JM |
4421 | } |
4422 | ||
2c73f9f5 | 4423 | /* [namespace.qual] |
6ad07332 JM |
4424 | Accepts the NAME to lookup and its qualifying SCOPE. |
4425 | Returns the name/type pair found into the CPLUS_BINDING RESULT, | |
2c73f9f5 ML |
4426 | or 0 on error. */ |
4427 | ||
4428 | int | |
52c11ef6 | 4429 | qualified_lookup_using_namespace (name, scope, result, flags) |
30394414 JM |
4430 | tree name; |
4431 | tree scope; | |
2c73f9f5 | 4432 | tree result; |
52c11ef6 | 4433 | int flags; |
30394414 | 4434 | { |
2c73f9f5 | 4435 | /* Maintain a list of namespaces visited... */ |
30394414 | 4436 | tree seen = NULL_TREE; |
2c73f9f5 | 4437 | /* ... and a list of namespace yet to see. */ |
30394414 JM |
4438 | tree todo = NULL_TREE; |
4439 | tree usings; | |
2c73f9f5 | 4440 | while (scope && (result != error_mark_node)) |
30394414 JM |
4441 | { |
4442 | seen = temp_tree_cons (scope, NULL_TREE, seen); | |
52c11ef6 JM |
4443 | result = ambiguous_decl (name, result, |
4444 | binding_for_name (name, scope), flags); | |
2c73f9f5 ML |
4445 | if (!BINDING_VALUE (result) && !BINDING_TYPE (result)) |
4446 | /* Consider using directives. */ | |
30394414 JM |
4447 | for (usings = DECL_NAMESPACE_USING (scope); usings; |
4448 | usings = TREE_CHAIN (usings)) | |
2c73f9f5 | 4449 | /* If this was a real directive, and we have not seen it. */ |
30394414 | 4450 | if (!TREE_INDIRECT_USING (usings) |
2b9dc906 | 4451 | && !purpose_member (TREE_PURPOSE (usings), seen)) |
30394414 JM |
4452 | todo = temp_tree_cons (TREE_PURPOSE (usings), NULL_TREE, todo); |
4453 | if (todo) | |
4454 | { | |
4455 | scope = TREE_PURPOSE (todo); | |
4456 | todo = TREE_CHAIN (todo); | |
4457 | } | |
4458 | else | |
2c73f9f5 | 4459 | scope = NULL_TREE; /* If there never was a todo list. */ |
30394414 | 4460 | } |
2c73f9f5 | 4461 | return result != error_mark_node; |
30394414 | 4462 | } |
6060a796 | 4463 | |
2c73f9f5 ML |
4464 | /* [namespace.memdef]/2 */ |
4465 | ||
4466 | /* Set the context of a declaration to scope. Complain if we are not | |
4467 | outside scope. */ | |
4468 | ||
4469 | void | |
b262d64c | 4470 | set_decl_namespace (decl, scope, friendp) |
2c73f9f5 ML |
4471 | tree decl; |
4472 | tree scope; | |
b262d64c | 4473 | int friendp; |
2c73f9f5 ML |
4474 | { |
4475 | tree old; | |
4476 | if (scope == std_node) | |
4477 | scope = global_namespace; | |
3e3f722c ML |
4478 | /* Get rid of namespace aliases. */ |
4479 | scope = ORIGINAL_NAMESPACE (scope); | |
4480 | ||
b262d64c JM |
4481 | /* It is ok for friends to be qualified in parallel space. */ |
4482 | if (!friendp && !is_namespace_ancestor (current_namespace, scope)) | |
8251199e | 4483 | cp_error ("declaration of `%D' not in a namespace surrounding `%D'", |
2c73f9f5 | 4484 | decl, scope); |
cb0dbb9a | 4485 | DECL_CONTEXT (decl) = FROB_CONTEXT (scope); |
2c73f9f5 ML |
4486 | if (scope != current_namespace) |
4487 | { | |
4488 | /* See whether this has been declared in the namespace. */ | |
4489 | old = namespace_binding (DECL_NAME (decl), scope); | |
4490 | if (!old) | |
4491 | /* No old declaration at all. */ | |
4492 | goto complain; | |
4493 | if (!is_overloaded_fn (decl)) | |
4494 | /* Don't compare non-function decls with decls_match here, | |
4495 | since it can't check for the correct constness at this | |
4496 | point. pushdecl will find those errors later. */ | |
4497 | return; | |
4498 | /* Since decl is a function, old should contain a function decl. */ | |
4499 | if (!is_overloaded_fn (old)) | |
4500 | goto complain; | |
4501 | for (; old; old = OVL_NEXT (old)) | |
4502 | if (decls_match (decl, OVL_CURRENT (old))) | |
4503 | return; | |
4504 | } | |
4505 | else | |
4506 | return; | |
4507 | complain: | |
8251199e | 4508 | cp_error ("`%D' should have been declared inside `%D'", |
2c73f9f5 ML |
4509 | decl, scope); |
4510 | } | |
4511 | ||
4512 | /* Compute the namespace where a declaration is defined. */ | |
e92cc029 | 4513 | |
d8e178a0 | 4514 | static tree |
2c73f9f5 ML |
4515 | decl_namespace (decl) |
4516 | tree decl; | |
6060a796 | 4517 | { |
2c73f9f5 ML |
4518 | while (DECL_CONTEXT (decl)) |
4519 | { | |
4520 | decl = DECL_CONTEXT (decl); | |
4521 | if (TREE_CODE (decl) == NAMESPACE_DECL) | |
4522 | return decl; | |
4523 | if (TREE_CODE_CLASS (TREE_CODE (decl)) == 't') | |
4524 | decl = TYPE_STUB_DECL (decl); | |
4525 | my_friendly_assert (TREE_CODE_CLASS (TREE_CODE (decl)) == 'd', 390); | |
4526 | } | |
4527 | ||
cb0dbb9a | 4528 | return global_namespace; |
6060a796 MS |
4529 | } |
4530 | ||
2c73f9f5 | 4531 | /* Return the namespace where the current declaration is declared. */ |
e92cc029 | 4532 | |
6060a796 | 4533 | tree |
2c73f9f5 | 4534 | current_decl_namespace () |
6060a796 | 4535 | { |
2c73f9f5 ML |
4536 | tree result; |
4537 | /* If we have been pushed into a different namespace, use it. */ | |
4538 | if (decl_namespace_list) | |
4539 | return TREE_PURPOSE (decl_namespace_list); | |
4540 | ||
4541 | if (current_class_type) | |
c3baf4b5 | 4542 | result = decl_namespace (TYPE_STUB_DECL (current_class_type)); |
2c73f9f5 | 4543 | else if (current_function_decl) |
c3baf4b5 | 4544 | result = decl_namespace (current_function_decl); |
2c73f9f5 ML |
4545 | else |
4546 | result = current_namespace; | |
4547 | return result; | |
4548 | } | |
6060a796 | 4549 | |
2c73f9f5 | 4550 | /* Temporarily set the namespace for the current declaration. */ |
6060a796 | 4551 | |
2c73f9f5 ML |
4552 | void |
4553 | push_decl_namespace (decl) | |
4554 | tree decl; | |
4555 | { | |
4556 | if (TREE_CODE (decl) != NAMESPACE_DECL) | |
4557 | decl = decl_namespace (decl); | |
4558 | decl_namespace_list = tree_cons (decl, NULL_TREE, decl_namespace_list); | |
4559 | } | |
4560 | ||
4561 | void | |
4562 | pop_decl_namespace () | |
4563 | { | |
4564 | decl_namespace_list = TREE_CHAIN (decl_namespace_list); | |
4565 | } | |
4566 | ||
f09bbbed ML |
4567 | /* Enter a class or namespace scope. */ |
4568 | ||
4569 | void | |
4570 | push_scope (t) | |
4571 | tree t; | |
4572 | { | |
4573 | if (TREE_CODE (t) == NAMESPACE_DECL) | |
4574 | push_decl_namespace (t); | |
4575 | else | |
4576 | pushclass (t, 2); | |
4577 | } | |
4578 | ||
4579 | /* Leave scope pushed by push_scope. */ | |
4580 | ||
4581 | void | |
4582 | pop_scope (t) | |
4583 | tree t; | |
4584 | { | |
4585 | if (TREE_CODE (t) == NAMESPACE_DECL) | |
4586 | pop_decl_namespace (); | |
4587 | else | |
b74a0560 | 4588 | popclass (); |
f09bbbed ML |
4589 | } |
4590 | ||
2c73f9f5 ML |
4591 | /* [basic.lookup.koenig] */ |
4592 | /* A non-zero return value in the functions below indicates an error. | |
4593 | All nodes allocated in the procedure are on the scratch obstack. */ | |
4594 | ||
4595 | struct arg_lookup | |
4596 | { | |
4597 | tree name; | |
4598 | tree namespaces; | |
4599 | tree classes; | |
4600 | tree functions; | |
4601 | }; | |
4602 | ||
4603 | static int arg_assoc PROTO((struct arg_lookup*, tree)); | |
4604 | static int arg_assoc_args PROTO((struct arg_lookup*, tree)); | |
61a127b3 | 4605 | static int arg_assoc_type PROTO((struct arg_lookup*, tree)); |
d8e178a0 KG |
4606 | static int add_function PROTO((struct arg_lookup *, tree)); |
4607 | static int arg_assoc_namespace PROTO((struct arg_lookup *, tree)); | |
4608 | static int arg_assoc_class PROTO((struct arg_lookup *, tree)); | |
2c73f9f5 | 4609 | |
2d390867 JM |
4610 | /* Add a function to the lookup structure. |
4611 | Returns 1 on error. */ | |
2c73f9f5 ML |
4612 | |
4613 | static int | |
4614 | add_function (k, fn) | |
4615 | struct arg_lookup *k; | |
4616 | tree fn; | |
4617 | { | |
4618 | if (ovl_member (fn, k->functions)) | |
4619 | return 0; | |
5f8ac7d1 ML |
4620 | /* We must find only functions, or exactly one non-function. */ |
4621 | if (k->functions && is_overloaded_fn (k->functions) | |
4622 | && is_overloaded_fn (fn)) | |
4623 | k->functions = build_overload (fn, k->functions); | |
4624 | else | |
4625 | if(k->functions) | |
4626 | { | |
4627 | tree f1 = OVL_CURRENT (k->functions); | |
4628 | tree f2 = fn; | |
4629 | if (is_overloaded_fn (f1)) | |
4630 | { | |
4631 | fn = f1; f1 = f2; f2 = fn; | |
4632 | } | |
8251199e JM |
4633 | cp_error_at ("`%D' is not a function,", f1); |
4634 | cp_error_at (" conflict with `%D'", f2); | |
4635 | cp_error (" in call to `%D'", k->name); | |
5f8ac7d1 ML |
4636 | return 1; |
4637 | } | |
4638 | else | |
4639 | k->functions = fn; | |
2c73f9f5 ML |
4640 | return 0; |
4641 | } | |
4642 | ||
2d390867 JM |
4643 | /* Add functions of a namespace to the lookup structure. |
4644 | Returns 1 on error. */ | |
2c73f9f5 ML |
4645 | |
4646 | static int | |
4647 | arg_assoc_namespace (k, scope) | |
4648 | struct arg_lookup *k; | |
4649 | tree scope; | |
4650 | { | |
4651 | tree value; | |
4652 | ||
4653 | if (purpose_member (scope, k->namespaces)) | |
4654 | return 0; | |
4655 | k->namespaces = tree_cons (scope, NULL_TREE, k->namespaces); | |
4656 | ||
4657 | value = namespace_binding (k->name, scope); | |
4658 | if (!value) | |
4659 | return 0; | |
4660 | ||
2c73f9f5 ML |
4661 | for (; value; value = OVL_NEXT (value)) |
4662 | if (add_function (k, OVL_CURRENT (value))) | |
4663 | return 1; | |
4664 | ||
4665 | return 0; | |
6060a796 | 4666 | } |
2c73f9f5 | 4667 | |
2d390867 JM |
4668 | /* Adds everything associated with class to the lookup structure. |
4669 | Returns 1 on error. */ | |
2c73f9f5 ML |
4670 | |
4671 | static int | |
4672 | arg_assoc_class (k, type) | |
4673 | struct arg_lookup* k; | |
4674 | tree type; | |
4675 | { | |
4676 | tree list, friends, context; | |
4677 | int i; | |
4678 | ||
4679 | if (purpose_member (type, k->classes)) | |
4680 | return 0; | |
4681 | k->classes = tree_cons (type, NULL_TREE, k->classes); | |
4682 | ||
4683 | context = decl_namespace (TYPE_MAIN_DECL (type)); | |
4684 | if (arg_assoc_namespace (k, context)) | |
4685 | return 1; | |
4686 | ||
4687 | /* Process baseclasses. */ | |
4688 | for (i = 0; i < CLASSTYPE_N_BASECLASSES (type); i++) | |
4689 | if (arg_assoc_class (k, TYPE_BINFO_BASETYPE (type, i))) | |
4690 | return 1; | |
4691 | ||
4692 | /* Process friends. */ | |
4693 | for (list = DECL_FRIENDLIST (TYPE_MAIN_DECL (type)); list; | |
4694 | list = TREE_CHAIN (list)) | |
4695 | if (k->name == TREE_PURPOSE (list)) | |
4696 | for (friends = TREE_VALUE (list); friends; | |
4697 | friends = TREE_CHAIN (friends)) | |
4698 | /* Only interested in global functions with potentially hidden | |
4699 | (i.e. unqualified) declarations. */ | |
4700 | if (TREE_PURPOSE (list) == error_mark_node && TREE_VALUE (list) | |
4701 | && decl_namespace (TREE_VALUE (list)) == context) | |
4702 | if (add_function (k, TREE_VALUE (list))) | |
4703 | return 1; | |
00dc6358 JM |
4704 | |
4705 | /* Process template arguments. */ | |
4706 | if (CLASSTYPE_TEMPLATE_INFO (type)) | |
4707 | { | |
36a117a5 | 4708 | list = innermost_args (CLASSTYPE_TI_ARGS (type)); |
00dc6358 JM |
4709 | for (i = 0; i < TREE_VEC_LENGTH (list); ++i) |
4710 | arg_assoc (k, TREE_VEC_ELT (list, i)); | |
4711 | } | |
4712 | ||
2c73f9f5 ML |
4713 | return 0; |
4714 | } | |
4715 | ||
2d390867 JM |
4716 | /* Adds everything associated with a given type. |
4717 | Returns 1 on error. */ | |
2c73f9f5 ML |
4718 | |
4719 | static int | |
4720 | arg_assoc_type (k, type) | |
4721 | struct arg_lookup *k; | |
4722 | tree type; | |
4723 | { | |
4724 | switch (TREE_CODE (type)) | |
4725 | { | |
4726 | case VOID_TYPE: | |
4727 | case INTEGER_TYPE: | |
4728 | case REAL_TYPE: | |
4729 | case COMPLEX_TYPE: | |
4730 | case CHAR_TYPE: | |
4731 | case BOOLEAN_TYPE: | |
4732 | return 0; | |
4733 | case RECORD_TYPE: | |
4734 | if (TYPE_PTRMEMFUNC_P (type)) | |
4735 | return arg_assoc_type (k, TYPE_PTRMEMFUNC_FN_TYPE (type)); | |
4736 | return arg_assoc_class (k, type); | |
4737 | case POINTER_TYPE: | |
4738 | case REFERENCE_TYPE: | |
4739 | case ARRAY_TYPE: | |
4740 | return arg_assoc_type (k, TREE_TYPE (type)); | |
4741 | case UNION_TYPE: | |
4742 | case ENUMERAL_TYPE: | |
4743 | return arg_assoc_namespace (k, decl_namespace (TYPE_MAIN_DECL (type))); | |
1813dd7b ML |
4744 | case OFFSET_TYPE: |
4745 | /* Pointer to member: associate class type and value type. */ | |
4746 | if (arg_assoc_type (k, TYPE_OFFSET_BASETYPE (type))) | |
4747 | return 1; | |
4748 | return arg_assoc_type (k, TREE_TYPE (type)); | |
2c73f9f5 | 4749 | case METHOD_TYPE: |
2d390867 JM |
4750 | /* The basetype is referenced in the first arg type, so just |
4751 | fall through. */ | |
2c73f9f5 ML |
4752 | case FUNCTION_TYPE: |
4753 | /* Associate the parameter types. */ | |
4754 | if (arg_assoc_args (k, TYPE_ARG_TYPES (type))) | |
4755 | return 1; | |
4756 | /* Associate the return type. */ | |
4757 | return arg_assoc_type (k, TREE_TYPE (type)); | |
2d390867 | 4758 | case TEMPLATE_TYPE_PARM: |
700466c2 | 4759 | case TEMPLATE_TEMPLATE_PARM: |
2d390867 | 4760 | return 0; |
1813dd7b ML |
4761 | case LANG_TYPE: |
4762 | if (type == unknown_type_node) | |
4763 | return 0; | |
4764 | /* else fall through */ | |
2c73f9f5 ML |
4765 | default: |
4766 | my_friendly_abort (390); | |
4767 | } | |
4768 | return 0; | |
4769 | } | |
4770 | ||
2d390867 | 4771 | /* Adds everything associated with arguments. Returns 1 on error. */ |
2c73f9f5 ML |
4772 | |
4773 | static int | |
4774 | arg_assoc_args (k, args) | |
4775 | struct arg_lookup* k; | |
4776 | tree args; | |
4777 | { | |
4778 | for (; args; args = TREE_CHAIN (args)) | |
4779 | if (arg_assoc (k, TREE_VALUE (args))) | |
4780 | return 1; | |
4781 | return 0; | |
4782 | } | |
4783 | ||
2d390867 | 4784 | /* Adds everything associated with a given tree_node. Returns 1 on error. */ |
2c73f9f5 ML |
4785 | |
4786 | static int | |
4787 | arg_assoc (k, n) | |
4788 | struct arg_lookup* k; | |
4789 | tree n; | |
4790 | { | |
00dc6358 JM |
4791 | if (n == error_mark_node) |
4792 | return 0; | |
4793 | ||
2d390867 JM |
4794 | if (TREE_CODE_CLASS (TREE_CODE (n)) == 't') |
4795 | return arg_assoc_type (k, n); | |
4796 | ||
4797 | if (! type_unknown_p (n)) | |
4798 | return arg_assoc_type (k, TREE_TYPE (n)); | |
4799 | ||
4800 | if (TREE_CODE (n) == ADDR_EXPR) | |
4801 | n = TREE_OPERAND (n, 0); | |
51924768 JM |
4802 | if (TREE_CODE (n) == COMPONENT_REF) |
4803 | n = TREE_OPERAND (n, 1); | |
05e0b2f4 JM |
4804 | if (TREE_CODE (n) == OFFSET_REF) |
4805 | n = TREE_OPERAND (n, 1); | |
00dc6358 | 4806 | while (TREE_CODE (n) == TREE_LIST) |
2d390867 JM |
4807 | n = TREE_VALUE (n); |
4808 | ||
51924768 JM |
4809 | if (TREE_CODE (n) == FUNCTION_DECL) |
4810 | return arg_assoc_type (k, TREE_TYPE (n)); | |
0c8bfdbc MM |
4811 | if (TREE_CODE (n) == TEMPLATE_ID_EXPR) |
4812 | { | |
4813 | /* [basic.lookup.koenig] | |
4814 | ||
4815 | If T is a template-id, its associated namespaces and classes | |
4816 | are the namespace in which the template is defined; for | |
4817 | member templates, the member template's class; the namespaces | |
4818 | and classes associated with the types of the template | |
4819 | arguments provided for template type parameters (excluding | |
4820 | template template parameters); the namespaces in which any | |
4821 | template template arguments are defined; and the classes in | |
4822 | which any member templates used as template template | |
4823 | arguments are defined. [Note: non-type template arguments do | |
4824 | not contribute to the set of associated namespaces. ] */ | |
4825 | tree template = TREE_OPERAND (n, 0); | |
4826 | tree args = TREE_OPERAND (n, 1); | |
4827 | tree ctx; | |
4828 | tree arg; | |
4829 | ||
4830 | /* First, the template. There may actually be more than one if | |
4831 | this is an overloaded function template. But, in that case, | |
4832 | we only need the first; all the functions will be in the same | |
4833 | namespace. */ | |
4834 | template = OVL_CURRENT (template); | |
4835 | ||
4836 | ctx = CP_DECL_CONTEXT (template); | |
4837 | ||
4838 | if (TREE_CODE (ctx) == NAMESPACE_DECL) | |
4839 | { | |
4840 | if (arg_assoc_namespace (k, ctx) == 1) | |
4841 | return 1; | |
4842 | } | |
4843 | /* It must be a member template. */ | |
4844 | else if (arg_assoc_class (k, ctx) == 1) | |
4845 | return 1; | |
2d390867 | 4846 | |
0c8bfdbc MM |
4847 | /* Now the arguments. */ |
4848 | for (arg = args; arg != NULL_TREE; arg = TREE_CHAIN (arg)) | |
4849 | { | |
4850 | tree t = TREE_VALUE (arg); | |
4851 | ||
4852 | if (TREE_CODE (t) == TEMPLATE_DECL) | |
4853 | { | |
4854 | ctx = CP_DECL_CONTEXT (t); | |
4855 | if (TREE_CODE (ctx) == NAMESPACE_DECL) | |
4856 | { | |
4857 | if (arg_assoc_namespace (k, ctx) == 1) | |
4858 | return 1; | |
4859 | } | |
4860 | else if (arg_assoc_class (k, ctx) == 1) | |
4861 | return 1; | |
4862 | } | |
4863 | else if (TREE_CODE_CLASS (TREE_CODE (t)) == 't' | |
61a127b3 | 4864 | && arg_assoc_type (k, t) == 1) |
0c8bfdbc MM |
4865 | return 1; |
4866 | } | |
4867 | } | |
4868 | else | |
4869 | { | |
4870 | my_friendly_assert (TREE_CODE (n) == OVERLOAD, 980715); | |
4871 | ||
4872 | for (; n; n = OVL_CHAIN (n)) | |
51924768 | 4873 | if (arg_assoc_type (k, TREE_TYPE (OVL_FUNCTION (n)))) |
0c8bfdbc MM |
4874 | return 1; |
4875 | } | |
2c73f9f5 | 4876 | |
2c73f9f5 ML |
4877 | return 0; |
4878 | } | |
4879 | ||
4880 | /* Performs Koenig lookup depending on arguments, where fns | |
4881 | are the functions found in normal lookup. */ | |
4882 | ||
4883 | tree | |
4884 | lookup_arg_dependent (name, fns, args) | |
4885 | tree name; | |
4886 | tree fns; | |
4887 | tree args; | |
4888 | { | |
4889 | struct arg_lookup k; | |
4890 | k.name = name; | |
4891 | k.functions = fns; | |
4892 | k.namespaces = NULL_TREE; | |
4893 | k.classes = NULL_TREE; | |
4894 | ||
4895 | push_scratch_obstack (); | |
4896 | arg_assoc_args (&k, args); | |
4897 | pop_obstacks (); | |
4898 | return k.functions; | |
4899 | } | |
4900 | ||
4901 | /* Process a namespace-alias declaration. */ | |
6060a796 | 4902 | |
6060a796 | 4903 | void |
a9aedbc2 MS |
4904 | do_namespace_alias (alias, namespace) |
4905 | tree alias, namespace; | |
6060a796 | 4906 | { |
3e3f722c | 4907 | if (TREE_CODE (namespace) != NAMESPACE_DECL) |
30394414 | 4908 | { |
3e3f722c | 4909 | /* The parser did not find it, so it's not there. */ |
8251199e | 4910 | cp_error ("unknown namespace `%D'", namespace); |
30394414 JM |
4911 | return; |
4912 | } | |
3e3f722c ML |
4913 | |
4914 | namespace = ORIGINAL_NAMESPACE (namespace); | |
4915 | ||
85c6cbaf ML |
4916 | /* Build the alias. */ |
4917 | alias = build_lang_decl (NAMESPACE_DECL, alias, void_type_node); | |
4918 | DECL_NAMESPACE_ALIAS (alias) = namespace; | |
4919 | pushdecl (alias); | |
6060a796 MS |
4920 | } |
4921 | ||
ea9635c7 ML |
4922 | /* Check a non-member using-declaration. Return the name and scope |
4923 | being used, and the USING_DECL, or NULL_TREE on failure. */ | |
2c73f9f5 | 4924 | |
ea9635c7 ML |
4925 | static tree |
4926 | validate_nonmember_using_decl (decl, scope, name) | |
a9aedbc2 | 4927 | tree decl; |
ea9635c7 ML |
4928 | tree *scope; |
4929 | tree *name; | |
6060a796 | 4930 | { |
6633d636 MS |
4931 | if (TREE_CODE (decl) == SCOPE_REF |
4932 | && TREE_OPERAND (decl, 0) == std_node) | |
39ee4d93 | 4933 | { |
7bdbfa05 MM |
4934 | if (namespace_bindings_p () |
4935 | && current_namespace == global_namespace) | |
4936 | /* There's no need for a using declaration at all, here, | |
4937 | since `std' is the same as `::'. We can't just pass this | |
4938 | on because we'll complain later about declaring something | |
4939 | in the same scope as a using declaration with the same | |
4940 | name. We return NULL_TREE which indicates to the caller | |
4941 | that there's no need to do any further processing. */ | |
4942 | return NULL_TREE; | |
4943 | ||
39ee4d93 ML |
4944 | *scope = global_namespace; |
4945 | *name = TREE_OPERAND (decl, 1); | |
4946 | } | |
4947 | else if (TREE_CODE (decl) == SCOPE_REF) | |
2c73f9f5 | 4948 | { |
ea9635c7 ML |
4949 | *scope = TREE_OPERAND (decl, 0); |
4950 | *name = TREE_OPERAND (decl, 1); | |
066b4a1c MM |
4951 | |
4952 | /* [namespace.udecl] | |
4953 | ||
4954 | A using-declaration for a class member shall be a | |
4955 | member-declaration. */ | |
4956 | if (TREE_CODE (*scope) != NAMESPACE_DECL) | |
4957 | { | |
b5d51daa MM |
4958 | if (TYPE_P (*scope)) |
4959 | cp_error ("`%T' is not a namespace", *scope); | |
4960 | else | |
4961 | cp_error ("`%D' is not a namespace", *scope); | |
066b4a1c MM |
4962 | return NULL_TREE; |
4963 | } | |
2c73f9f5 | 4964 | } |
0228fa7e | 4965 | else if (TREE_CODE (decl) == IDENTIFIER_NODE |
75fbcb7d ML |
4966 | || TREE_CODE (decl) == TYPE_DECL |
4967 | || TREE_CODE (decl) == TEMPLATE_DECL) | |
2c73f9f5 | 4968 | { |
ea9635c7 ML |
4969 | *scope = global_namespace; |
4970 | *name = decl; | |
2c73f9f5 ML |
4971 | } |
4972 | else | |
4973 | my_friendly_abort (382); | |
ea9635c7 ML |
4974 | if (TREE_CODE_CLASS (TREE_CODE (*name)) == 'd') |
4975 | *name = DECL_NAME (*name); | |
2c73f9f5 | 4976 | /* Make a USING_DECL. */ |
ea9635c7 ML |
4977 | return push_using_decl (*scope, *name); |
4978 | } | |
4979 | ||
4980 | /* Process local and global using-declarations. */ | |
4981 | ||
4982 | static void | |
4983 | do_nonmember_using_decl (scope, name, oldval, oldtype, newval, newtype) | |
4984 | tree scope, name; | |
4985 | tree oldval, oldtype; | |
4986 | tree *newval, *newtype; | |
4987 | { | |
4988 | tree decls; | |
4989 | struct tree_binding _decls; | |
4990 | ||
4991 | *newval = *newtype = NULL_TREE; | |
2c73f9f5 | 4992 | decls = binding_init (&_decls); |
52c11ef6 | 4993 | if (!qualified_lookup_using_namespace (name, scope, decls, 0)) |
2c73f9f5 | 4994 | /* Lookup error */ |
a9aedbc2 | 4995 | return; |
6060a796 | 4996 | |
2c73f9f5 ML |
4997 | if (!BINDING_VALUE (decls) && !BINDING_TYPE (decls)) |
4998 | { | |
8251199e | 4999 | cp_error ("`%D' not declared", name); |
2c73f9f5 ML |
5000 | return; |
5001 | } | |
2c73f9f5 ML |
5002 | |
5003 | /* Check for using functions. */ | |
5004 | if (BINDING_VALUE (decls) && is_overloaded_fn (BINDING_VALUE (decls))) | |
5005 | { | |
2c73f9f5 | 5006 | tree tmp, tmp1; |
9ed182dc JM |
5007 | |
5008 | if (oldval && !is_overloaded_fn (oldval)) | |
5009 | { | |
5010 | duplicate_decls (OVL_CURRENT (BINDING_VALUE (decls)), oldval); | |
5011 | oldval = NULL_TREE; | |
5012 | } | |
5013 | ||
ea9635c7 | 5014 | *newval = oldval; |
2c73f9f5 ML |
5015 | for (tmp = BINDING_VALUE (decls); tmp; tmp = OVL_NEXT (tmp)) |
5016 | { | |
7bdbfa05 MM |
5017 | tree new_fn = OVL_CURRENT (tmp); |
5018 | ||
5019 | /* [namespace.udecl] | |
5020 | ||
5021 | If a function declaration in namespace scope or block | |
5022 | scope has the same name and the same parameter types as a | |
5023 | function introduced by a using declaration the program is | |
5024 | ill-formed. */ | |
2c73f9f5 | 5025 | for (tmp1 = oldval; tmp1; tmp1 = OVL_NEXT (tmp1)) |
7bdbfa05 MM |
5026 | { |
5027 | tree old_fn = OVL_CURRENT (tmp1); | |
a9aedbc2 | 5028 | |
7bdbfa05 MM |
5029 | if (!OVL_USED (tmp1) |
5030 | && compparms (TYPE_ARG_TYPES (TREE_TYPE (new_fn)), | |
5031 | TYPE_ARG_TYPES (TREE_TYPE (old_fn)))) | |
5032 | { | |
5033 | /* There was already a non-using declaration in | |
5034 | this scope with the same parameter types. */ | |
5035 | cp_error ("`%D' is already declared in this scope", | |
5036 | name); | |
5037 | break; | |
5038 | } | |
5039 | else if (duplicate_decls (new_fn, old_fn)) | |
5040 | /* We're re-using something we already used | |
5041 | before. We don't need to add it again. */ | |
5042 | break; | |
5043 | } | |
5044 | ||
5045 | /* If we broke out of the loop, there's no reason to add | |
5046 | this function to the using declarations for this | |
5047 | scope. */ | |
2c73f9f5 ML |
5048 | if (tmp1) |
5049 | continue; | |
5050 | ||
ea9635c7 ML |
5051 | *newval = build_overload (OVL_CURRENT (tmp), *newval); |
5052 | if (TREE_CODE (*newval) != OVERLOAD) | |
5053 | *newval = ovl_cons (*newval, NULL_TREE); | |
5054 | OVL_USED (*newval) = 1; | |
2c73f9f5 ML |
5055 | } |
5056 | } | |
5057 | else | |
a9aedbc2 | 5058 | { |
ea9635c7 | 5059 | *newval = BINDING_VALUE (decls); |
9ed182dc JM |
5060 | if (oldval) |
5061 | duplicate_decls (*newval, oldval); | |
2c73f9f5 ML |
5062 | } |
5063 | ||
ea9635c7 ML |
5064 | *newtype = BINDING_TYPE (decls); |
5065 | if (oldtype && *newtype && oldtype != *newtype) | |
2c73f9f5 | 5066 | { |
8251199e | 5067 | cp_error ("using directive `%D' introduced ambiguous type `%T'", |
ea9635c7 | 5068 | name, oldtype); |
2c73f9f5 | 5069 | return; |
a9aedbc2 | 5070 | } |
ea9635c7 ML |
5071 | } |
5072 | ||
5073 | /* Process a using-declaration not appearing in class or local scope. */ | |
5074 | ||
5075 | void | |
5076 | do_toplevel_using_decl (decl) | |
5077 | tree decl; | |
5078 | { | |
5079 | tree scope, name, binding; | |
5080 | tree oldval, oldtype, newval, newtype; | |
5081 | ||
5082 | decl = validate_nonmember_using_decl (decl, &scope, &name); | |
5083 | if (decl == NULL_TREE) | |
5084 | return; | |
5085 | ||
5086 | binding = binding_for_name (name, current_namespace); | |
5087 | ||
5088 | oldval = BINDING_VALUE (binding); | |
5089 | oldtype = BINDING_TYPE (binding); | |
5090 | ||
5091 | do_nonmember_using_decl (scope, name, oldval, oldtype, &newval, &newtype); | |
5092 | ||
2c73f9f5 ML |
5093 | /* Copy declarations found. */ |
5094 | if (newval) | |
5095 | BINDING_VALUE (binding) = newval; | |
5096 | if (newtype) | |
5097 | BINDING_TYPE (binding) = newtype; | |
5098 | return; | |
6060a796 MS |
5099 | } |
5100 | ||
9ed182dc JM |
5101 | /* Process a using-declaration at function scope. */ |
5102 | ||
ea9635c7 ML |
5103 | void |
5104 | do_local_using_decl (decl) | |
5105 | tree decl; | |
5106 | { | |
5107 | tree scope, name; | |
5108 | tree oldval, oldtype, newval, newtype; | |
9ed182dc | 5109 | |
ea9635c7 ML |
5110 | decl = validate_nonmember_using_decl (decl, &scope, &name); |
5111 | if (decl == NULL_TREE) | |
5112 | return; | |
5113 | ||
9ed182dc JM |
5114 | oldval = lookup_name_current_level (name); |
5115 | oldtype = lookup_type_current_level (name); | |
ea9635c7 ML |
5116 | |
5117 | do_nonmember_using_decl (scope, name, oldval, oldtype, &newval, &newtype); | |
5118 | ||
5119 | if (newval) | |
7bdbfa05 MM |
5120 | { |
5121 | if (is_overloaded_fn (newval)) | |
5122 | { | |
0580c9aa | 5123 | tree fn, term; |
7bdbfa05 MM |
5124 | |
5125 | /* We only need to push declarations for those functions | |
0580c9aa ML |
5126 | that were not already bound in the current level. |
5127 | The old value might be NULL_TREE, it might be a single | |
5128 | function, or an OVERLOAD. */ | |
5129 | if (oldval && TREE_CODE (oldval) == OVERLOAD) | |
5130 | term = OVL_FUNCTION (oldval); | |
5131 | else | |
5132 | term = oldval; | |
5133 | for (fn = newval; fn && OVL_CURRENT (fn) != term; | |
5134 | fn = OVL_NEXT (fn)) | |
7bdbfa05 MM |
5135 | push_overloaded_decl (OVL_CURRENT (fn), |
5136 | PUSH_LOCAL | PUSH_USING); | |
5137 | } | |
5138 | else | |
0034cf72 | 5139 | push_local_binding (name, newval, PUSH_USING); |
7bdbfa05 | 5140 | } |
9ed182dc JM |
5141 | if (newtype) |
5142 | set_identifier_type_value (name, newtype); | |
ea9635c7 ML |
5143 | } |
5144 | ||
6060a796 | 5145 | tree |
a9aedbc2 | 5146 | do_class_using_decl (decl) |
6060a796 MS |
5147 | tree decl; |
5148 | { | |
cffa8729 | 5149 | tree name, value; |
f30432d7 | 5150 | |
2c73f9f5 ML |
5151 | if (TREE_CODE (decl) != SCOPE_REF |
5152 | || TREE_CODE_CLASS (TREE_CODE (TREE_OPERAND (decl, 0))) != 't') | |
cffa8729 | 5153 | { |
8251199e | 5154 | cp_error ("using-declaration for non-member at class scope"); |
cffa8729 MS |
5155 | return NULL_TREE; |
5156 | } | |
5157 | name = TREE_OPERAND (decl, 1); | |
5158 | if (TREE_CODE (name) == BIT_NOT_EXPR) | |
5159 | { | |
8251199e | 5160 | cp_error ("using-declaration for destructor"); |
cffa8729 MS |
5161 | return NULL_TREE; |
5162 | } | |
1c35f5b6 JM |
5163 | if (TREE_CODE (name) == TYPE_DECL) |
5164 | name = DECL_NAME (name); | |
5165 | ||
5166 | my_friendly_assert (TREE_CODE (name) == IDENTIFIER_NODE, 980716); | |
cffa8729 | 5167 | |
5566b478 | 5168 | value = build_lang_field_decl (USING_DECL, name, void_type_node); |
cffa8729 MS |
5169 | DECL_INITIAL (value) = TREE_OPERAND (decl, 0); |
5170 | return value; | |
6060a796 MS |
5171 | } |
5172 | ||
2c73f9f5 ML |
5173 | /* Process a using-directive. */ |
5174 | ||
6060a796 MS |
5175 | void |
5176 | do_using_directive (namespace) | |
5177 | tree namespace; | |
5178 | { | |
6633d636 MS |
5179 | if (namespace == std_node) |
5180 | return; | |
3e3f722c | 5181 | /* using namespace A::B::C; */ |
30394414 JM |
5182 | if (TREE_CODE (namespace) == SCOPE_REF) |
5183 | namespace = TREE_OPERAND (namespace, 1); | |
2c73f9f5 ML |
5184 | if (TREE_CODE (namespace) == IDENTIFIER_NODE) |
5185 | { | |
5186 | /* Lookup in lexer did not find a namespace. */ | |
8251199e | 5187 | cp_error ("namespace `%T' undeclared", namespace); |
2c73f9f5 ML |
5188 | return; |
5189 | } | |
5190 | if (TREE_CODE (namespace) != NAMESPACE_DECL) | |
5191 | { | |
8251199e | 5192 | cp_error ("`%T' is not a namespace", namespace); |
2c73f9f5 ML |
5193 | return; |
5194 | } | |
3e3f722c | 5195 | namespace = ORIGINAL_NAMESPACE (namespace); |
ea9635c7 | 5196 | if (!toplevel_bindings_p ()) |
9ed182dc | 5197 | push_using_directive (namespace); |
ea9635c7 ML |
5198 | else |
5199 | /* direct usage */ | |
5200 | add_using_namespace (current_namespace, namespace, 0); | |
6060a796 | 5201 | } |
f30432d7 MS |
5202 | |
5203 | void | |
5204 | check_default_args (x) | |
5205 | tree x; | |
5206 | { | |
5207 | tree arg = TYPE_ARG_TYPES (TREE_TYPE (x)); | |
5208 | int saw_def = 0, i = 0 - (TREE_CODE (TREE_TYPE (x)) == METHOD_TYPE); | |
5209 | for (; arg && arg != void_list_node; arg = TREE_CHAIN (arg), ++i) | |
5210 | { | |
5211 | if (TREE_PURPOSE (arg)) | |
5212 | saw_def = 1; | |
5213 | else if (saw_def) | |
5214 | { | |
8251199e | 5215 | cp_error_at ("default argument missing for parameter %P of `%+#D'", |
b7698cf0 | 5216 | i, x); |
f30432d7 MS |
5217 | break; |
5218 | } | |
5219 | } | |
5220 | } | |
72b7eeff MS |
5221 | |
5222 | void | |
5223 | mark_used (decl) | |
5224 | tree decl; | |
5225 | { | |
5226 | TREE_USED (decl) = 1; | |
5156628f | 5227 | if (processing_template_decl) |
5566b478 | 5228 | return; |
72b7eeff | 5229 | assemble_external (decl); |
36a117a5 | 5230 | |
73aad9b9 JM |
5231 | /* Is it a synthesized method that needs to be synthesized? */ |
5232 | if (TREE_CODE (decl) == FUNCTION_DECL && DECL_CLASS_CONTEXT (decl) | |
5233 | && DECL_ARTIFICIAL (decl) && ! DECL_INITIAL (decl) | |
5234 | /* Kludge: don't synthesize for default args. */ | |
5235 | && current_function_decl) | |
5236 | synthesize_method (decl); | |
36a117a5 MM |
5237 | |
5238 | /* If this is a function or variable that is an instance of some | |
5239 | template, we now know that we will need to actually do the | |
5240 | instantiation. A TEMPLATE_DECL may also have DECL_TEMPLATE_INFO, | |
5241 | if it's a partial instantiation, but there's no need to | |
03d0f4af MM |
5242 | instantiate such a thing. We check that DECL is not an explicit |
5243 | instantiation because that is not checked in instantiate_decl. */ | |
36a117a5 | 5244 | if (TREE_CODE (decl) != TEMPLATE_DECL |
03d0f4af MM |
5245 | && DECL_LANG_SPECIFIC (decl) && DECL_TEMPLATE_INFO (decl) |
5246 | && !DECL_EXPLICIT_INSTANTIATION (decl)) | |
5566b478 | 5247 | instantiate_decl (decl); |
72b7eeff | 5248 | } |
f62dbf03 | 5249 | |
3d7de1fa MM |
5250 | /* Helper function for named_class_head_sans_basetype nonterminal. We |
5251 | have just seen something of the form `AGGR SCOPE::ID'. Return a | |
5252 | TYPE_DECL for the type declared by ID in SCOPE. */ | |
f62dbf03 JM |
5253 | |
5254 | tree | |
5255 | handle_class_head (aggr, scope, id) | |
5256 | tree aggr, scope, id; | |
5257 | { | |
3d7de1fa MM |
5258 | tree decl; |
5259 | ||
f62dbf03 | 5260 | if (TREE_CODE (id) == TYPE_DECL) |
3d7de1fa MM |
5261 | decl = id; |
5262 | else if (DECL_CLASS_TEMPLATE_P (id)) | |
5263 | decl = DECL_TEMPLATE_RESULT (id); | |
5264 | else | |
5265 | { | |
5266 | if (scope) | |
8bcc97de MM |
5267 | { |
5268 | cp_error ("`%T' does not have a nested type named `%D'", scope, id); | |
5269 | return error_mark_node; | |
5270 | } | |
3d7de1fa MM |
5271 | else |
5272 | cp_error ("no file-scope type named `%D'", id); | |
5273 | ||
5274 | decl = TYPE_MAIN_DECL (xref_tag (aggr, make_anon_name (), 1)); | |
5275 | } | |
f62dbf03 | 5276 | |
3d7de1fa MM |
5277 | /* This syntax is only allowed when we're defining a type, so we |
5278 | enter the SCOPE. */ | |
5279 | push_scope (CP_DECL_CONTEXT (decl)); | |
5280 | ||
5281 | /* If we see something like: | |
f62dbf03 | 5282 | |
3d7de1fa MM |
5283 | template <typename T> struct S::I .... |
5284 | ||
5285 | we must create a TEMPLATE_DECL for the nested type. */ | |
5286 | if (PROCESSING_REAL_TEMPLATE_DECL_P ()) | |
5287 | decl = push_template_decl (decl); | |
5288 | ||
5289 | return decl; | |
f62dbf03 | 5290 | } |