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Commit | Line | Data |
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8d08fdba | 1 | /* Process declarations and variables for C compiler. |
357a4089 | 2 | Copyright (C) 1988, 92, 93, 94, 95, 1996 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" |
49c249e1 | 43 | |
49c249e1 JM |
44 | static tree get_sentry PROTO((tree)); |
45 | static void mark_vtable_entries PROTO((tree)); | |
46 | static void import_export_template PROTO((tree)); | |
6b5fbb55 | 47 | static void grok_function_init PROTO((tree, tree)); |
49c249e1 JM |
48 | static int finish_vtable_vardecl PROTO((tree, tree)); |
49 | static int prune_vtable_vardecl PROTO((tree, tree)); | |
50 | static void finish_sigtable_vardecl PROTO((tree, tree)); | |
69ac77ce JL |
51 | static int is_namespace_ancestor PROTO((tree, tree)); |
52 | static tree namespace_ancestor PROTO((tree, tree)); | |
53 | static void add_using_namespace PROTO((tree, tree, int)); | |
9ac1d79d | 54 | static tree ambiguous_decl PROTO((tree, tree, tree)); |
cb96daa2 | 55 | static tree build_anon_union_vars PROTO((tree, tree*, int, int)); |
49c249e1 | 56 | |
cffa8729 | 57 | extern int current_class_depth; |
8d08fdba MS |
58 | |
59 | /* A list of virtual function tables we must make sure to write out. */ | |
60 | tree pending_vtables; | |
61 | ||
62 | /* A list of static class variables. This is needed, because a | |
63 | static class variable can be declared inside the class without | |
64 | an initializer, and then initialized, staticly, outside the class. */ | |
65 | tree pending_statics; | |
66 | ||
8926095f | 67 | /* A list of functions which were declared inline, but which we |
e92cc029 | 68 | may need to emit outline anyway. */ |
8926095f | 69 | static tree saved_inlines; |
8d08fdba MS |
70 | |
71 | /* Used to help generate temporary names which are unique within | |
72 | a function. Reset to 0 by start_function. */ | |
73 | ||
7215f9a0 | 74 | int temp_name_counter; |
8d08fdba MS |
75 | |
76 | /* Same, but not reset. Local temp variables and global temp variables | |
77 | can have the same name. */ | |
78 | static int global_temp_name_counter; | |
79 | ||
51c184be | 80 | /* Flag used when debugging spew.c */ |
8d08fdba MS |
81 | |
82 | extern int spew_debug; | |
e1cd6e56 | 83 | |
5566b478 MS |
84 | /* Nonzero if we're done parsing and into end-of-file activities. */ |
85 | ||
86 | int at_eof; | |
87 | ||
e1cd6e56 MS |
88 | /* Functions called along with real static constructors and destructors. */ |
89 | ||
90 | tree static_ctors, static_dtors; | |
30394414 | 91 | |
2c73f9f5 | 92 | /* The current open namespace, and ::. */ |
30394414 JM |
93 | |
94 | tree current_namespace; | |
95 | tree global_namespace; | |
96 | ||
2c73f9f5 ML |
97 | /* The stack for namespaces of current declarations. */ |
98 | ||
99 | static tree decl_namespace_list; | |
100 | ||
8d08fdba MS |
101 | \f |
102 | /* C (and C++) language-specific option variables. */ | |
103 | ||
104 | /* Nonzero means allow type mismatches in conditional expressions; | |
105 | just make their values `void'. */ | |
106 | ||
107 | int flag_cond_mismatch; | |
108 | ||
109 | /* Nonzero means give `double' the same size as `float'. */ | |
110 | ||
111 | int flag_short_double; | |
112 | ||
113 | /* Nonzero means don't recognize the keyword `asm'. */ | |
114 | ||
115 | int flag_no_asm; | |
116 | ||
e1cd6e56 MS |
117 | /* Nonzero means don't recognize any extension keywords. */ |
118 | ||
119 | int flag_no_gnu_keywords; | |
120 | ||
8d08fdba MS |
121 | /* Nonzero means don't recognize the non-ANSI builtin functions. */ |
122 | ||
123 | int flag_no_builtin; | |
124 | ||
00595019 MS |
125 | /* Nonzero means don't recognize the non-ANSI builtin functions. |
126 | -ansi sets this. */ | |
127 | ||
128 | int flag_no_nonansi_builtin; | |
129 | ||
d22c8596 MS |
130 | /* Nonzero means do some things the same way PCC does. Only provided so |
131 | the compiler will link. */ | |
8d08fdba MS |
132 | |
133 | int flag_traditional; | |
134 | ||
135 | /* Nonzero means to treat bitfields as unsigned unless they say `signed'. */ | |
136 | ||
137 | int flag_signed_bitfields = 1; | |
138 | ||
139 | /* Nonzero means handle `#ident' directives. 0 means ignore them. */ | |
140 | ||
e1cd6e56 | 141 | int flag_no_ident; |
8d08fdba | 142 | |
e1cd6e56 MS |
143 | /* Nonzero means enable obscure ANSI features and disable GNU extensions |
144 | that might cause ANSI-compliant code to be miscompiled. */ | |
8d08fdba | 145 | |
e1cd6e56 | 146 | int flag_ansi; |
8d08fdba | 147 | |
8d08fdba MS |
148 | /* Nonzero means do emit exported implementations of functions even if |
149 | they can be inlined. */ | |
150 | ||
151 | int flag_implement_inlines = 1; | |
152 | ||
153 | /* Nonzero means do emit exported implementations of templates, instead of | |
e92cc029 | 154 | multiple static copies in each file that needs a definition. */ |
8d08fdba | 155 | |
e1cd6e56 | 156 | int flag_external_templates; |
8d08fdba MS |
157 | |
158 | /* Nonzero means that the decision to emit or not emit the implementation of a | |
159 | template depends on where the template is instantiated, rather than where | |
160 | it is defined. */ | |
161 | ||
e1cd6e56 | 162 | int flag_alt_external_templates; |
8d08fdba | 163 | |
a0a33927 MS |
164 | /* Nonzero means that implicit instantiations will be emitted if needed. */ |
165 | ||
166 | int flag_implicit_templates = 1; | |
167 | ||
8d08fdba MS |
168 | /* Nonzero means warn about implicit declarations. */ |
169 | ||
170 | int warn_implicit = 1; | |
171 | ||
172 | /* Nonzero means warn when all ctors or dtors are private, and the class | |
173 | has no friends. */ | |
174 | ||
175 | int warn_ctor_dtor_privacy = 1; | |
176 | ||
a80e4195 | 177 | /* True if we want to implement vtables using "thunks". |
6467930b | 178 | The default is off. */ |
8926095f | 179 | |
da20811c JM |
180 | #ifndef DEFAULT_VTABLE_THUNKS |
181 | #define DEFAULT_VTABLE_THUNKS 0 | |
c73964b2 | 182 | #endif |
da20811c | 183 | int flag_vtable_thunks = DEFAULT_VTABLE_THUNKS; |
51c184be | 184 | |
faae18ab MS |
185 | /* True if we want to deal with repository information. */ |
186 | ||
187 | int flag_use_repository; | |
188 | ||
8d08fdba MS |
189 | /* Nonzero means give string constants the type `const char *' |
190 | to get extra warnings from them. These warnings will be too numerous | |
191 | to be useful, except in thoroughly ANSIfied programs. */ | |
192 | ||
193 | int warn_write_strings; | |
194 | ||
195 | /* Nonzero means warn about pointer casts that can drop a type qualifier | |
196 | from the pointer target type. */ | |
197 | ||
198 | int warn_cast_qual; | |
199 | ||
200 | /* Nonzero means warn that dbx info for template class methods isn't fully | |
201 | supported yet. */ | |
202 | ||
203 | int warn_template_debugging; | |
204 | ||
8d08fdba MS |
205 | /* Nonzero means warn about sizeof(function) or addition/subtraction |
206 | of function pointers. */ | |
207 | ||
be99da77 | 208 | int warn_pointer_arith = 1; |
8d08fdba | 209 | |
8d08fdba MS |
210 | /* Nonzero means warn for any function def without prototype decl. */ |
211 | ||
212 | int warn_missing_prototypes; | |
213 | ||
214 | /* Nonzero means warn about multiple (redundant) decls for the same single | |
215 | variable or function. */ | |
216 | ||
217 | int warn_redundant_decls; | |
218 | ||
219 | /* Warn if initializer is not completely bracketed. */ | |
220 | ||
221 | int warn_missing_braces; | |
222 | ||
2ee887f2 MS |
223 | /* Warn about comparison of signed and unsigned values. */ |
224 | ||
225 | int warn_sign_compare; | |
226 | ||
e92cc029 | 227 | /* Warn about *printf or *scanf format/argument anomalies. */ |
8d08fdba MS |
228 | |
229 | int warn_format; | |
230 | ||
231 | /* Warn about a subscript that has type char. */ | |
232 | ||
233 | int warn_char_subscripts; | |
234 | ||
235 | /* Warn if a type conversion is done that might have confusing results. */ | |
236 | ||
237 | int warn_conversion; | |
238 | ||
239 | /* Warn if adding () is suggested. */ | |
240 | ||
e1cd6e56 | 241 | int warn_parentheses; |
8d08fdba MS |
242 | |
243 | /* Non-zero means warn in function declared in derived class has the | |
244 | same name as a virtual in the base class, but fails to match the | |
245 | type signature of any virtual function in the base class. */ | |
246 | int warn_overloaded_virtual; | |
247 | ||
248 | /* Non-zero means warn when declaring a class that has a non virtual | |
e92cc029 | 249 | destructor, when it really ought to have a virtual one. */ |
9a0e77ba | 250 | int warn_nonvdtor; |
8d08fdba MS |
251 | |
252 | /* Non-zero means warn when a function is declared extern and later inline. */ | |
253 | int warn_extern_inline; | |
254 | ||
f376e137 MS |
255 | /* Non-zero means warn when the compiler will reorder code. */ |
256 | int warn_reorder; | |
257 | ||
ddd5a7c1 | 258 | /* Non-zero means warn when synthesis behavior differs from Cfront's. */ |
f376e137 MS |
259 | int warn_synth; |
260 | ||
9a3b49ac MS |
261 | /* Non-zero means warn when we convert a pointer to member function |
262 | into a pointer to (void or function). */ | |
263 | int warn_pmf2ptr = 1; | |
264 | ||
eb448459 MS |
265 | /* Nonzero means warn about violation of some Effective C++ style rules. */ |
266 | ||
da20811c JM |
267 | int warn_ecpp; |
268 | ||
269 | /* Nonzero means warn where overload resolution chooses a promotion from | |
270 | unsigned to signed over a conversion to an unsigned of the same size. */ | |
271 | ||
272 | int warn_sign_promo; | |
eb448459 | 273 | |
0c4b14c4 JM |
274 | /* Nonzero means warn when an old-style cast is used. */ |
275 | ||
276 | int warn_old_style_cast; | |
277 | ||
f9fc59e8 NC |
278 | /* Warn about #pragma directives that are not recognised. */ |
279 | ||
280 | int warn_unknown_pragmas = 0; /* Tri state variable. */ | |
281 | ||
4f6140be | 282 | /* Nonzero means `$' can be in an identifier. */ |
8d08fdba MS |
283 | |
284 | #ifndef DOLLARS_IN_IDENTIFIERS | |
285 | #define DOLLARS_IN_IDENTIFIERS 1 | |
286 | #endif | |
287 | int dollars_in_ident = DOLLARS_IN_IDENTIFIERS; | |
288 | ||
a3203465 | 289 | /* Nonzero for -fno-strict-prototype switch: do not consider empty |
8d08fdba MS |
290 | argument prototype to mean function takes no arguments. */ |
291 | ||
e1cd6e56 | 292 | int flag_strict_prototype = 2; |
8d08fdba MS |
293 | int strict_prototype = 1; |
294 | int strict_prototypes_lang_c, strict_prototypes_lang_cplusplus = 1; | |
295 | ||
296 | /* Nonzero means that labels can be used as first-class objects */ | |
297 | ||
298 | int flag_labels_ok; | |
299 | ||
300 | /* Non-zero means to collect statistics which might be expensive | |
301 | and to print them when we are done. */ | |
302 | int flag_detailed_statistics; | |
303 | ||
304 | /* C++ specific flags. */ | |
305 | /* Nonzero for -fall-virtual: make every member function (except | |
306 | constructors) lay down in the virtual function table. Calls | |
307 | can then either go through the virtual function table or not, | |
308 | depending. */ | |
309 | ||
310 | int flag_all_virtual; | |
311 | ||
312 | /* Zero means that `this' is a *const. This gives nice behavior in the | |
313 | 2.0 world. 1 gives 1.2-compatible behavior. 2 gives Spring behavior. | |
314 | -2 means we're constructing an object and it has fixed type. */ | |
315 | ||
316 | int flag_this_is_variable; | |
317 | ||
318 | /* Nonzero means memoize our member lookups. */ | |
319 | ||
320 | int flag_memoize_lookups; int flag_save_memoized_contexts; | |
321 | ||
322 | /* 3 means write out only virtuals function tables `defined' | |
323 | in this implementation file. | |
324 | 2 means write out only specific virtual function tables | |
325 | and give them (C) public access. | |
326 | 1 means write out virtual function tables and give them | |
327 | (C) public access. | |
328 | 0 means write out virtual function tables and give them | |
329 | (C) static access (default). | |
330 | -1 means declare virtual function tables extern. */ | |
331 | ||
332 | int write_virtuals; | |
333 | ||
c1bc6829 JM |
334 | /* Nonzero means we should attempt to elide constructors when possible. |
335 | FIXME: This flag is obsolete, and should be torn out along with the | |
336 | old overloading code. */ | |
8d08fdba MS |
337 | |
338 | int flag_elide_constructors; | |
339 | ||
8d08fdba MS |
340 | /* Nonzero means recognize and handle signature language constructs. */ |
341 | ||
342 | int flag_handle_signatures; | |
343 | ||
344 | /* Nonzero means that member functions defined in class scope are | |
345 | inline by default. */ | |
346 | ||
347 | int flag_default_inline = 1; | |
348 | ||
349 | /* Controls whether enums and ints freely convert. | |
350 | 1 means with complete freedom. | |
351 | 0 means enums can convert to ints, but not vice-versa. */ | |
352 | int flag_int_enum_equivalence; | |
353 | ||
db5ae43f | 354 | /* Controls whether compiler generates 'type descriptor' that give |
8d08fdba | 355 | run-time type information. */ |
6b5fbb55 | 356 | int flag_rtti = 1; |
8d08fdba MS |
357 | |
358 | /* Nonzero if we wish to output cross-referencing information | |
359 | for the GNU class browser. */ | |
360 | extern int flag_gnu_xref; | |
361 | ||
362 | /* Nonzero if compiler can make `reasonable' assumptions about | |
363 | references and objects. For example, the compiler must be | |
364 | conservative about the following and not assume that `a' is nonnull: | |
365 | ||
366 | obj &a = g (); | |
367 | a.f (2); | |
368 | ||
369 | In general, it is `reasonable' to assume that for many programs, | |
370 | and better code can be generated in that case. */ | |
371 | ||
e1cd6e56 | 372 | int flag_assume_nonnull_objects = 1; |
8d08fdba MS |
373 | |
374 | /* Nonzero if we want to support huge (> 2^(sizeof(short)*8-1) bytes) | |
e92cc029 | 375 | objects. */ |
e1cd6e56 | 376 | |
8d08fdba MS |
377 | int flag_huge_objects; |
378 | ||
379 | /* Nonzero if we want to conserve space in the .o files. We do this | |
380 | by putting uninitialized data and runtime initialized data into | |
ddd5a7c1 | 381 | .common instead of .data at the expense of not flagging multiple |
8d08fdba | 382 | definitions. */ |
e1cd6e56 | 383 | |
8d08fdba MS |
384 | int flag_conserve_space; |
385 | ||
eae89e04 | 386 | /* Nonzero if we want to obey access control semantics. */ |
e1cd6e56 | 387 | |
eae89e04 JM |
388 | int flag_access_control = 1; |
389 | ||
e1cd6e56 MS |
390 | /* Nonzero if we want to understand the operator names, i.e. 'bitand'. */ |
391 | ||
392 | int flag_operator_names; | |
393 | ||
d18c083e MS |
394 | /* Nonzero if we want to check the return value of new and avoid calling |
395 | constructors if it is a null pointer. */ | |
396 | ||
397 | int flag_check_new; | |
398 | ||
863adfc0 | 399 | /* Nonzero if we want the new ANSI rules for pushing a new scope for `for' |
57c0c9ca PB |
400 | initialization variables. |
401 | 0: Old rules, set by -fno-for-scope. | |
402 | 2: New ANSI rules, set by -ffor-scope. | |
abc95ed3 | 403 | 1: Try to implement new ANSI rules, but with backup compatibility |
57c0c9ca | 404 | (and warnings). This is the default, for now. */ |
863adfc0 MS |
405 | |
406 | int flag_new_for_scope = 1; | |
407 | ||
72b7eeff MS |
408 | /* Nonzero if we want to emit defined symbols with common-like linkage as |
409 | weak symbols where possible, in order to conform to C++ semantics. | |
410 | Otherwise, emit them as local symbols. */ | |
411 | ||
412 | int flag_weak = 1; | |
413 | ||
a59ca936 JM |
414 | /* Nonzero to enable experimental ABI changes. */ |
415 | ||
416 | int flag_new_abi; | |
732dcb6f | 417 | |
2c73f9f5 ML |
418 | /* Nonzero to not ignore namespace std. */ |
419 | ||
420 | int flag_honor_std; | |
421 | ||
e9f32eb5 MS |
422 | /* Maximum template instantiation depth. Must be at least 17 for ANSI |
423 | compliance. */ | |
424 | ||
425 | int max_tinst_depth = 17; | |
426 | ||
386b8a85 JM |
427 | /* The name-mangling scheme to use. Must be 1 or greater to support |
428 | template functions with identical types, but different template | |
429 | arguments. */ | |
1d9ffce9 | 430 | int name_mangling_version = 2; |
386b8a85 JM |
431 | |
432 | /* Nonzero means that guiding declarations are allowed. */ | |
433 | int flag_guiding_decls; | |
434 | ||
1d9ffce9 AM |
435 | /* Nonzero if squashed mangling is to be performed. |
436 | This uses the B and K codes to reference previously seen class types | |
437 | and class qualifiers. */ | |
438 | int flag_do_squangling; | |
439 | ||
440 | ||
8d08fdba MS |
441 | /* Table of language-dependent -f options. |
442 | STRING is the option name. VARIABLE is the address of the variable. | |
443 | ON_VALUE is the value to store in VARIABLE | |
444 | if `-fSTRING' is seen as an option. | |
445 | (If `-fno-STRING' is seen as an option, the opposite value is stored.) */ | |
446 | ||
447 | static struct { char *string; int *variable; int on_value;} lang_f_options[] = | |
448 | { | |
449 | {"signed-char", &flag_signed_char, 1}, | |
450 | {"unsigned-char", &flag_signed_char, 0}, | |
451 | {"signed-bitfields", &flag_signed_bitfields, 1}, | |
452 | {"unsigned-bitfields", &flag_signed_bitfields, 0}, | |
453 | {"short-enums", &flag_short_enums, 1}, | |
454 | {"short-double", &flag_short_double, 1}, | |
455 | {"cond-mismatch", &flag_cond_mismatch, 1}, | |
1d9ffce9 | 456 | {"squangle", &flag_do_squangling, 1}, |
8d08fdba MS |
457 | {"asm", &flag_no_asm, 0}, |
458 | {"builtin", &flag_no_builtin, 0}, | |
459 | {"ident", &flag_no_ident, 0}, | |
460 | {"labels-ok", &flag_labels_ok, 1}, | |
461 | {"stats", &flag_detailed_statistics, 1}, | |
462 | {"this-is-variable", &flag_this_is_variable, 1}, | |
e1cd6e56 | 463 | {"strict-prototype", &flag_strict_prototype, 1}, |
8d08fdba MS |
464 | {"all-virtual", &flag_all_virtual, 1}, |
465 | {"memoize-lookups", &flag_memoize_lookups, 1}, | |
466 | {"elide-constructors", &flag_elide_constructors, 1}, | |
da20811c | 467 | {"handle-exceptions", &flag_exceptions, 1}, |
8d08fdba | 468 | {"handle-signatures", &flag_handle_signatures, 1}, |
8d08fdba MS |
469 | {"default-inline", &flag_default_inline, 1}, |
470 | {"dollars-in-identifiers", &dollars_in_ident, 1}, | |
471 | {"enum-int-equiv", &flag_int_enum_equivalence, 1}, | |
2c73f9f5 | 472 | {"honor-std", &flag_honor_std, 1}, |
db5ae43f | 473 | {"rtti", &flag_rtti, 1}, |
8d08fdba MS |
474 | {"xref", &flag_gnu_xref, 1}, |
475 | {"nonnull-objects", &flag_assume_nonnull_objects, 1}, | |
476 | {"implement-inlines", &flag_implement_inlines, 1}, | |
477 | {"external-templates", &flag_external_templates, 1}, | |
a0a33927 | 478 | {"implicit-templates", &flag_implicit_templates, 1}, |
8d08fdba MS |
479 | {"huge-objects", &flag_huge_objects, 1}, |
480 | {"conserve-space", &flag_conserve_space, 1}, | |
8926095f | 481 | {"vtable-thunks", &flag_vtable_thunks, 1}, |
eae89e04 | 482 | {"access-control", &flag_access_control, 1}, |
e1cd6e56 MS |
483 | {"nonansi-builtins", &flag_no_nonansi_builtin, 0}, |
484 | {"gnu-keywords", &flag_no_gnu_keywords, 0}, | |
d18c083e | 485 | {"operator-names", &flag_operator_names, 1}, |
faae18ab | 486 | {"check-new", &flag_check_new, 1}, |
863adfc0 | 487 | {"repo", &flag_use_repository, 1}, |
72b7eeff | 488 | {"for-scope", &flag_new_for_scope, 2}, |
a59ca936 | 489 | {"weak", &flag_weak, 1} |
8d08fdba MS |
490 | }; |
491 | ||
492 | /* Decode the string P as a language-specific option. | |
493 | Return 1 if it is recognized (and handle it); | |
494 | return 0 if not recognized. */ | |
495 | ||
496 | int | |
497 | lang_decode_option (p) | |
498 | char *p; | |
499 | { | |
500 | if (!strcmp (p, "-ftraditional") || !strcmp (p, "-traditional")) | |
4f6140be | 501 | flag_writable_strings = 1, |
863adfc0 | 502 | flag_this_is_variable = 1, flag_new_for_scope = 0; |
8d08fdba MS |
503 | /* The +e options are for cfront compatibility. They come in as |
504 | `-+eN', to kludge around gcc.c's argument handling. */ | |
505 | else if (p[0] == '-' && p[1] == '+' && p[2] == 'e') | |
506 | { | |
507 | int old_write_virtuals = write_virtuals; | |
508 | if (p[3] == '1') | |
509 | write_virtuals = 1; | |
510 | else if (p[3] == '0') | |
511 | write_virtuals = -1; | |
512 | else if (p[3] == '2') | |
513 | write_virtuals = 2; | |
514 | else error ("invalid +e option"); | |
515 | if (old_write_virtuals != 0 | |
516 | && write_virtuals != old_write_virtuals) | |
517 | error ("conflicting +e options given"); | |
518 | } | |
519 | else if (p[0] == '-' && p[1] == 'f') | |
520 | { | |
521 | /* Some kind of -f option. | |
522 | P's value is the option sans `-f'. | |
523 | Search for it in the table of options. */ | |
85066503 MH |
524 | int found = 0; |
525 | size_t j; | |
8d08fdba MS |
526 | |
527 | p += 2; | |
528 | /* Try special -f options. */ | |
529 | ||
da20811c JM |
530 | if (!strcmp (p, "handle-exceptions") |
531 | || !strcmp (p, "no-handle-exceptions")) | |
532 | warning ("-fhandle-exceptions has been renamed to -fexceptions (and is now on by default)"); | |
533 | ||
8d08fdba MS |
534 | if (!strcmp (p, "save-memoized")) |
535 | { | |
536 | flag_memoize_lookups = 1; | |
537 | flag_save_memoized_contexts = 1; | |
538 | found = 1; | |
539 | } | |
da20811c | 540 | else if (!strcmp (p, "no-save-memoized")) |
8d08fdba MS |
541 | { |
542 | flag_memoize_lookups = 0; | |
543 | flag_save_memoized_contexts = 0; | |
544 | found = 1; | |
545 | } | |
8d08fdba MS |
546 | else if (! strcmp (p, "alt-external-templates")) |
547 | { | |
548 | flag_external_templates = 1; | |
549 | flag_alt_external_templates = 1; | |
550 | found = 1; | |
551 | } | |
552 | else if (! strcmp (p, "no-alt-external-templates")) | |
553 | { | |
554 | flag_alt_external_templates = 0; | |
555 | found = 1; | |
556 | } | |
79ff2c6c MS |
557 | else if (!strcmp (p, "repo")) |
558 | { | |
559 | flag_use_repository = 1; | |
560 | flag_implicit_templates = 0; | |
561 | found = 1; | |
00595019 | 562 | } |
386b8a85 JM |
563 | else if (!strcmp (p, "guiding-decls")) |
564 | { | |
565 | flag_guiding_decls = 1; | |
566 | name_mangling_version = 0; | |
567 | found = 1; | |
568 | } | |
569 | else if (!strcmp (p, "no-guiding-decls")) | |
570 | { | |
571 | flag_guiding_decls = 0; | |
572 | found = 1; | |
573 | } | |
277294d7 JM |
574 | else if (!strcmp (p, "ansi-overloading")) |
575 | found = 1; | |
576 | else if (!strcmp (p, "no-ansi-overloading")) | |
577 | { | |
578 | error ("-fno-ansi-overloading is no longer supported"); | |
579 | found = 1; | |
580 | } | |
a59ca936 JM |
581 | else if (!strcmp (p, "new-abi")) |
582 | { | |
583 | flag_new_abi = 1; | |
584 | flag_do_squangling = 1; | |
2c73f9f5 | 585 | flag_honor_std = 1; |
9577319f | 586 | flag_vtable_thunks = 1; |
a59ca936 JM |
587 | } |
588 | else if (!strcmp (p, "no-new-abi")) | |
589 | { | |
590 | flag_new_abi = 0; | |
591 | flag_do_squangling = 0; | |
2c73f9f5 | 592 | flag_honor_std = 0; |
a59ca936 | 593 | } |
e9f32eb5 MS |
594 | else if (!strncmp (p, "template-depth-", 15)) |
595 | { | |
596 | char *endp = p + 15; | |
597 | while (*endp) | |
598 | { | |
599 | if (*endp >= '0' && *endp <= '9') | |
600 | endp++; | |
601 | else | |
602 | { | |
603 | error ("Invalid option `%s'", p - 2); | |
604 | goto template_depth_lose; | |
605 | } | |
606 | } | |
607 | max_tinst_depth = atoi (p + 15); | |
608 | template_depth_lose: ; | |
609 | } | |
386b8a85 JM |
610 | else if (!strncmp (p, "name-mangling-version-", 22)) |
611 | { | |
612 | char *endp = p + 22; | |
613 | while (*endp) | |
614 | { | |
615 | if (*endp >= '0' && *endp <= '9') | |
616 | endp++; | |
617 | else | |
618 | { | |
619 | error ("Invalid option `%s'", p - 2); | |
620 | goto mangling_version_lose; | |
621 | } | |
622 | } | |
623 | name_mangling_version = atoi (p + 22); | |
893de33c | 624 | mangling_version_lose: ; |
386b8a85 | 625 | } |
8d08fdba MS |
626 | else for (j = 0; |
627 | !found && j < sizeof (lang_f_options) / sizeof (lang_f_options[0]); | |
628 | j++) | |
629 | { | |
630 | if (!strcmp (p, lang_f_options[j].string)) | |
631 | { | |
632 | *lang_f_options[j].variable = lang_f_options[j].on_value; | |
633 | /* A goto here would be cleaner, | |
634 | but breaks the vax pcc. */ | |
635 | found = 1; | |
636 | } | |
637 | if (p[0] == 'n' && p[1] == 'o' && p[2] == '-' | |
638 | && ! strcmp (p+3, lang_f_options[j].string)) | |
639 | { | |
640 | *lang_f_options[j].variable = ! lang_f_options[j].on_value; | |
641 | found = 1; | |
642 | } | |
643 | } | |
644 | return found; | |
645 | } | |
646 | else if (p[0] == '-' && p[1] == 'W') | |
647 | { | |
648 | int setting = 1; | |
649 | ||
650 | /* The -W options control the warning behavior of the compiler. */ | |
651 | p += 2; | |
652 | ||
653 | if (p[0] == 'n' && p[1] == 'o' && p[2] == '-') | |
654 | setting = 0, p += 3; | |
655 | ||
656 | if (!strcmp (p, "implicit")) | |
657 | warn_implicit = setting; | |
658 | else if (!strcmp (p, "return-type")) | |
659 | warn_return_type = setting; | |
660 | else if (!strcmp (p, "ctor-dtor-privacy")) | |
661 | warn_ctor_dtor_privacy = setting; | |
662 | else if (!strcmp (p, "write-strings")) | |
663 | warn_write_strings = setting; | |
664 | else if (!strcmp (p, "cast-qual")) | |
665 | warn_cast_qual = setting; | |
8d08fdba MS |
666 | else if (!strcmp (p, "char-subscripts")) |
667 | warn_char_subscripts = setting; | |
668 | else if (!strcmp (p, "pointer-arith")) | |
669 | warn_pointer_arith = setting; | |
8d08fdba MS |
670 | else if (!strcmp (p, "missing-prototypes")) |
671 | warn_missing_prototypes = setting; | |
672 | else if (!strcmp (p, "redundant-decls")) | |
673 | warn_redundant_decls = setting; | |
674 | else if (!strcmp (p, "missing-braces")) | |
675 | warn_missing_braces = setting; | |
2ee887f2 MS |
676 | else if (!strcmp (p, "sign-compare")) |
677 | warn_sign_compare = setting; | |
8d08fdba MS |
678 | else if (!strcmp (p, "format")) |
679 | warn_format = setting; | |
680 | else if (!strcmp (p, "conversion")) | |
681 | warn_conversion = setting; | |
682 | else if (!strcmp (p, "parentheses")) | |
683 | warn_parentheses = setting; | |
21474714 MS |
684 | else if (!strcmp (p, "non-virtual-dtor")) |
685 | warn_nonvdtor = setting; | |
8d08fdba MS |
686 | else if (!strcmp (p, "extern-inline")) |
687 | warn_extern_inline = setting; | |
f376e137 MS |
688 | else if (!strcmp (p, "reorder")) |
689 | warn_reorder = setting; | |
690 | else if (!strcmp (p, "synth")) | |
691 | warn_synth = setting; | |
9a3b49ac MS |
692 | else if (!strcmp (p, "pmf-conversions")) |
693 | warn_pmf2ptr = setting; | |
eb448459 MS |
694 | else if (!strcmp (p, "effc++")) |
695 | warn_ecpp = setting; | |
da20811c JM |
696 | else if (!strcmp (p, "sign-promo")) |
697 | warn_sign_promo = setting; | |
0c4b14c4 JM |
698 | else if (!strcmp (p, "old-style-cast")) |
699 | warn_old_style_cast = setting; | |
f9fc59e8 NC |
700 | else if (!strcmp (p, "unknown-pragmas")) |
701 | /* Set to greater than 1, so that even unknown pragmas in | |
702 | system headers will be warned about. */ | |
703 | warn_unknown_pragmas = setting * 2; | |
8d08fdba MS |
704 | else if (!strcmp (p, "comment")) |
705 | ; /* cpp handles this one. */ | |
706 | else if (!strcmp (p, "comments")) | |
707 | ; /* cpp handles this one. */ | |
708 | else if (!strcmp (p, "trigraphs")) | |
709 | ; /* cpp handles this one. */ | |
710 | else if (!strcmp (p, "import")) | |
711 | ; /* cpp handles this one. */ | |
712 | else if (!strcmp (p, "all")) | |
713 | { | |
8d08fdba MS |
714 | warn_return_type = setting; |
715 | warn_unused = setting; | |
716 | warn_implicit = setting; | |
717 | warn_ctor_dtor_privacy = setting; | |
718 | warn_switch = setting; | |
719 | warn_format = setting; | |
e1cd6e56 | 720 | warn_parentheses = setting; |
8d08fdba | 721 | warn_missing_braces = setting; |
2ee887f2 | 722 | warn_sign_compare = setting; |
8d08fdba | 723 | warn_extern_inline = setting; |
9a0e77ba | 724 | warn_nonvdtor = setting; |
8d08fdba MS |
725 | /* We save the value of warn_uninitialized, since if they put |
726 | -Wuninitialized on the command line, we need to generate a | |
727 | warning about not using it without also specifying -O. */ | |
728 | if (warn_uninitialized != 1) | |
729 | warn_uninitialized = (setting ? 2 : 0); | |
730 | warn_template_debugging = setting; | |
f376e137 | 731 | warn_reorder = setting; |
da20811c | 732 | warn_sign_promo = setting; |
f9fc59e8 NC |
733 | /* Only warn about unknown pragmas that are not in system |
734 | headers. */ | |
735 | warn_unknown_pragmas = 1; | |
8d08fdba MS |
736 | } |
737 | ||
738 | else if (!strcmp (p, "overloaded-virtual")) | |
739 | warn_overloaded_virtual = setting; | |
740 | else return 0; | |
741 | } | |
742 | else if (!strcmp (p, "-ansi")) | |
4f6140be | 743 | flag_no_nonansi_builtin = 1, flag_ansi = 1, |
e1cd6e56 | 744 | flag_no_gnu_keywords = 1, flag_operator_names = 1; |
8d08fdba MS |
745 | #ifdef SPEW_DEBUG |
746 | /* Undocumented, only ever used when you're invoking cc1plus by hand, since | |
747 | it's probably safe to assume no sane person would ever want to use this | |
748 | under normal circumstances. */ | |
749 | else if (!strcmp (p, "-spew-debug")) | |
750 | spew_debug = 1; | |
751 | #endif | |
752 | else | |
753 | return 0; | |
754 | ||
755 | return 1; | |
756 | } | |
757 | \f | |
758 | /* Incorporate `const' and `volatile' qualifiers for member functions. | |
759 | FUNCTION is a TYPE_DECL or a FUNCTION_DECL. | |
760 | QUALS is a list of qualifiers. */ | |
e92cc029 | 761 | |
8d08fdba MS |
762 | tree |
763 | grok_method_quals (ctype, function, quals) | |
764 | tree ctype, function, quals; | |
765 | { | |
766 | tree fntype = TREE_TYPE (function); | |
767 | tree raises = TYPE_RAISES_EXCEPTIONS (fntype); | |
768 | ||
769 | do | |
770 | { | |
771 | extern tree ridpointers[]; | |
772 | ||
773 | if (TREE_VALUE (quals) == ridpointers[(int)RID_CONST]) | |
774 | { | |
775 | if (TYPE_READONLY (ctype)) | |
776 | error ("duplicate `%s' %s", | |
777 | IDENTIFIER_POINTER (TREE_VALUE (quals)), | |
778 | (TREE_CODE (function) == FUNCTION_DECL | |
779 | ? "for member function" : "in type declaration")); | |
780 | ctype = build_type_variant (ctype, 1, TYPE_VOLATILE (ctype)); | |
781 | build_pointer_type (ctype); | |
782 | } | |
783 | else if (TREE_VALUE (quals) == ridpointers[(int)RID_VOLATILE]) | |
784 | { | |
785 | if (TYPE_VOLATILE (ctype)) | |
786 | error ("duplicate `%s' %s", | |
787 | IDENTIFIER_POINTER (TREE_VALUE (quals)), | |
788 | (TREE_CODE (function) == FUNCTION_DECL | |
789 | ? "for member function" : "in type declaration")); | |
790 | ctype = build_type_variant (ctype, TYPE_READONLY (ctype), 1); | |
791 | build_pointer_type (ctype); | |
792 | } | |
793 | else | |
794 | my_friendly_abort (20); | |
795 | quals = TREE_CHAIN (quals); | |
796 | } | |
797 | while (quals); | |
798 | fntype = build_cplus_method_type (ctype, TREE_TYPE (fntype), | |
799 | (TREE_CODE (fntype) == METHOD_TYPE | |
800 | ? TREE_CHAIN (TYPE_ARG_TYPES (fntype)) | |
801 | : TYPE_ARG_TYPES (fntype))); | |
802 | if (raises) | |
f30432d7 | 803 | fntype = build_exception_variant (fntype, raises); |
8d08fdba MS |
804 | |
805 | TREE_TYPE (function) = fntype; | |
806 | return ctype; | |
807 | } | |
808 | ||
8d08fdba MS |
809 | /* Warn when -fexternal-templates is used and #pragma |
810 | interface/implementation is not used all the times it should be, | |
811 | inform the user. */ | |
e92cc029 | 812 | |
8d08fdba | 813 | void |
8ccc31eb MS |
814 | warn_if_unknown_interface (decl) |
815 | tree decl; | |
8d08fdba MS |
816 | { |
817 | static int already_warned = 0; | |
8ccc31eb MS |
818 | if (already_warned++) |
819 | return; | |
820 | ||
821 | if (flag_alt_external_templates) | |
822 | { | |
823 | struct tinst_level *til = tinst_for_decl (); | |
824 | int sl = lineno; | |
825 | char *sf = input_filename; | |
826 | ||
f30432d7 MS |
827 | if (til) |
828 | { | |
829 | lineno = til->line; | |
830 | input_filename = til->file; | |
831 | } | |
8ccc31eb MS |
832 | cp_warning ("template `%#D' instantiated in file without #pragma interface", |
833 | decl); | |
834 | lineno = sl; | |
835 | input_filename = sf; | |
836 | } | |
837 | else | |
838 | cp_warning_at ("template `%#D' defined in file without #pragma interface", | |
839 | decl); | |
8d08fdba MS |
840 | } |
841 | ||
842 | /* A subroutine of the parser, to handle a component list. */ | |
e92cc029 | 843 | |
8d08fdba MS |
844 | tree |
845 | grok_x_components (specs, components) | |
846 | tree specs, components; | |
847 | { | |
848 | register tree t, x, tcode; | |
849 | ||
850 | /* We just got some friends. They have been recorded elsewhere. */ | |
851 | if (components == void_type_node) | |
852 | return NULL_TREE; | |
853 | ||
854 | if (components == NULL_TREE) | |
855 | { | |
856 | t = groktypename (build_decl_list (specs, NULL_TREE)); | |
857 | ||
858 | if (t == NULL_TREE) | |
859 | { | |
860 | error ("error in component specification"); | |
861 | return NULL_TREE; | |
862 | } | |
863 | ||
864 | switch (TREE_CODE (t)) | |
865 | { | |
866 | case VAR_DECL: | |
867 | /* Static anonymous unions come out as VAR_DECLs. */ | |
67ffc812 | 868 | if (ANON_UNION_TYPE_P (TREE_TYPE (t))) |
8d08fdba MS |
869 | return t; |
870 | ||
871 | /* We return SPECS here, because in the parser it was ending | |
872 | up with not doing anything to $$, which is what SPECS | |
873 | represents. */ | |
874 | return specs; | |
875 | break; | |
876 | ||
877 | case RECORD_TYPE: | |
878 | /* This code may be needed for UNION_TYPEs as | |
879 | well. */ | |
880 | tcode = record_type_node; | |
fc378698 | 881 | if (CLASSTYPE_DECLARED_CLASS (t)) |
8d08fdba | 882 | tcode = class_type_node; |
fc378698 | 883 | else if (IS_SIGNATURE (t)) |
8d08fdba | 884 | tcode = signature_type_node; |
6757edfe MM |
885 | |
886 | if (CLASSTYPE_IS_TEMPLATE (t)) | |
887 | /* In this case, the TYPE_IDENTIFIER will be something | |
888 | like S<T>, rather than S, so to get the correct name we | |
889 | look at the template. */ | |
890 | x = DECL_NAME (CLASSTYPE_TI_TEMPLATE (t)); | |
891 | else | |
892 | x = TYPE_IDENTIFIER (t); | |
893 | ||
894 | t = xref_tag (tcode, x, NULL_TREE, 0); | |
8d08fdba MS |
895 | return NULL_TREE; |
896 | break; | |
897 | ||
898 | case UNION_TYPE: | |
899 | case ENUMERAL_TYPE: | |
fc378698 | 900 | if (TREE_CODE (t) == UNION_TYPE) |
8d08fdba MS |
901 | tcode = union_type_node; |
902 | else | |
903 | tcode = enum_type_node; | |
904 | ||
8ccc31eb | 905 | t = xref_tag (tcode, TYPE_IDENTIFIER (t), NULL_TREE, 0); |
67ffc812 | 906 | if (ANON_UNION_TYPE_P (t)) |
8d08fdba | 907 | { |
d2e5ee5c MS |
908 | /* See also shadow_tag. */ |
909 | ||
8d08fdba | 910 | struct pending_inline **p; |
d2e5ee5c | 911 | tree *q; |
8d08fdba MS |
912 | x = build_lang_field_decl (FIELD_DECL, NULL_TREE, t); |
913 | ||
914 | /* Wipe out memory of synthesized methods */ | |
915 | TYPE_HAS_CONSTRUCTOR (t) = 0; | |
916 | TYPE_HAS_DEFAULT_CONSTRUCTOR (t) = 0; | |
917 | TYPE_HAS_INIT_REF (t) = 0; | |
918 | TYPE_HAS_CONST_INIT_REF (t) = 0; | |
919 | TYPE_HAS_ASSIGN_REF (t) = 0; | |
920 | TYPE_HAS_ASSIGNMENT (t) = 0; | |
921 | TYPE_HAS_CONST_ASSIGN_REF (t) = 0; | |
922 | ||
d2e5ee5c MS |
923 | q = &TYPE_METHODS (t); |
924 | while (*q) | |
925 | { | |
926 | if (DECL_ARTIFICIAL (*q)) | |
927 | *q = TREE_CHAIN (*q); | |
928 | else | |
929 | q = &TREE_CHAIN (*q); | |
930 | } | |
931 | if (TYPE_METHODS (t)) | |
932 | error ("an anonymous union cannot have function members"); | |
933 | ||
8d08fdba MS |
934 | p = &pending_inlines; |
935 | for (; *p; *p = (*p)->next) | |
936 | if (DECL_CONTEXT ((*p)->fndecl) != t) | |
937 | break; | |
938 | } | |
939 | else if (TREE_CODE (t) == ENUMERAL_TYPE) | |
86052cc3 | 940 | x = grok_enum_decls (NULL_TREE); |
8d08fdba MS |
941 | else |
942 | x = NULL_TREE; | |
943 | return x; | |
944 | break; | |
945 | ||
946 | default: | |
947 | if (t != void_type_node) | |
948 | error ("empty component declaration"); | |
949 | return NULL_TREE; | |
950 | } | |
951 | } | |
952 | else | |
86052cc3 JM |
953 | /* There may or may not be any enum decls to grok, but |
954 | grok_enum_decls will just return components, if there aren't | |
955 | any. We used to try to figure out whether or not there were | |
956 | any enum decls based on the type of components, but that's too | |
957 | hard; it might be something like `enum { a } *p;'. */ | |
958 | return grok_enum_decls (components); | |
8d08fdba MS |
959 | } |
960 | ||
961 | /* Classes overload their constituent function names automatically. | |
962 | When a function name is declared in a record structure, | |
963 | its name is changed to it overloaded name. Since names for | |
964 | constructors and destructors can conflict, we place a leading | |
965 | '$' for destructors. | |
966 | ||
967 | CNAME is the name of the class we are grokking for. | |
968 | ||
969 | FUNCTION is a FUNCTION_DECL. It was created by `grokdeclarator'. | |
970 | ||
971 | FLAGS contains bits saying what's special about today's | |
972 | arguments. 1 == DESTRUCTOR. 2 == OPERATOR. | |
973 | ||
974 | If FUNCTION is a destructor, then we must add the `auto-delete' field | |
975 | as a second parameter. There is some hair associated with the fact | |
976 | that we must "declare" this variable in the manner consistent with the | |
977 | way the rest of the arguments were declared. | |
978 | ||
979 | QUALS are the qualifiers for the this pointer. */ | |
980 | ||
981 | void | |
982 | grokclassfn (ctype, cname, function, flags, quals) | |
983 | tree ctype, cname, function; | |
984 | enum overload_flags flags; | |
985 | tree quals; | |
986 | { | |
987 | tree fn_name = DECL_NAME (function); | |
988 | tree arg_types; | |
989 | tree parm; | |
700f8a87 | 990 | tree qualtype; |
f30432d7 MS |
991 | tree fntype = TREE_TYPE (function); |
992 | tree raises = TYPE_RAISES_EXCEPTIONS (fntype); | |
8d08fdba MS |
993 | |
994 | if (fn_name == NULL_TREE) | |
995 | { | |
996 | error ("name missing for member function"); | |
997 | fn_name = get_identifier ("<anonymous>"); | |
998 | DECL_NAME (function) = fn_name; | |
999 | } | |
1000 | ||
1001 | if (quals) | |
700f8a87 MS |
1002 | qualtype = grok_method_quals (ctype, function, quals); |
1003 | else | |
1004 | qualtype = ctype; | |
8d08fdba MS |
1005 | |
1006 | arg_types = TYPE_ARG_TYPES (TREE_TYPE (function)); | |
1007 | if (TREE_CODE (TREE_TYPE (function)) == METHOD_TYPE) | |
1008 | { | |
1009 | /* Must add the class instance variable up front. */ | |
1010 | /* Right now we just make this a pointer. But later | |
1011 | we may wish to make it special. */ | |
1012 | tree type = TREE_VALUE (arg_types); | |
863adfc0 | 1013 | int constp = 1; |
8d08fdba | 1014 | |
2986ae00 MS |
1015 | if ((flag_this_is_variable > 0) |
1016 | && (flags == DTOR_FLAG || DECL_CONSTRUCTOR_P (function))) | |
863adfc0 | 1017 | constp = 0; |
2986ae00 MS |
1018 | |
1019 | if (DECL_CONSTRUCTOR_P (function)) | |
8d08fdba MS |
1020 | { |
1021 | if (TYPE_USES_VIRTUAL_BASECLASSES (ctype)) | |
1022 | { | |
1023 | DECL_CONSTRUCTOR_FOR_VBASE_P (function) = 1; | |
1024 | /* In this case we need "in-charge" flag saying whether | |
1025 | this constructor is responsible for initialization | |
1026 | of virtual baseclasses or not. */ | |
1027 | parm = build_decl (PARM_DECL, in_charge_identifier, integer_type_node); | |
1028 | /* Mark the artificial `__in_chrg' parameter as "artificial". */ | |
700f8a87 | 1029 | SET_DECL_ARTIFICIAL (parm); |
8d08fdba | 1030 | DECL_ARG_TYPE (parm) = integer_type_node; |
72b7eeff | 1031 | TREE_READONLY (parm) = 1; |
8d08fdba MS |
1032 | TREE_CHAIN (parm) = last_function_parms; |
1033 | last_function_parms = parm; | |
1034 | } | |
1035 | } | |
1036 | ||
1037 | parm = build_decl (PARM_DECL, this_identifier, type); | |
1038 | /* Mark the artificial `this' parameter as "artificial". */ | |
700f8a87 | 1039 | SET_DECL_ARTIFICIAL (parm); |
8d08fdba MS |
1040 | DECL_ARG_TYPE (parm) = type; |
1041 | /* We can make this a register, so long as we don't | |
1042 | accidentally complain if someone tries to take its address. */ | |
1043 | DECL_REGISTER (parm) = 1; | |
863adfc0 | 1044 | if (constp) |
8d08fdba MS |
1045 | TREE_READONLY (parm) = 1; |
1046 | TREE_CHAIN (parm) = last_function_parms; | |
1047 | last_function_parms = parm; | |
1048 | } | |
1049 | ||
1050 | if (flags == DTOR_FLAG) | |
1051 | { | |
1052 | char *buf, *dbuf; | |
8d08fdba MS |
1053 | int len = sizeof (DESTRUCTOR_DECL_PREFIX)-1; |
1054 | ||
7834ab39 | 1055 | arg_types = hash_tree_chain (integer_type_node, void_list_node); |
8d08fdba MS |
1056 | TREE_SIDE_EFFECTS (arg_types) = 1; |
1057 | /* Build the overload name. It will look like `7Example'. */ | |
1058 | if (IDENTIFIER_TYPE_VALUE (cname)) | |
1059 | dbuf = build_overload_name (IDENTIFIER_TYPE_VALUE (cname), 1, 1); | |
1060 | else if (IDENTIFIER_LOCAL_VALUE (cname)) | |
3c215895 JM |
1061 | dbuf = build_overload_name (TREE_TYPE (IDENTIFIER_LOCAL_VALUE (cname)), |
1062 | 1, 1); | |
8d08fdba MS |
1063 | else |
1064 | /* Using ctype fixes the `X::Y::~Y()' crash. The cname has no type when | |
1065 | it's defined out of the class definition, since poplevel_class wipes | |
1066 | it out. This used to be internal error 346. */ | |
1067 | dbuf = build_overload_name (ctype, 1, 1); | |
1068 | buf = (char *) alloca (strlen (dbuf) + sizeof (DESTRUCTOR_DECL_PREFIX)); | |
1069 | bcopy (DESTRUCTOR_DECL_PREFIX, buf, len); | |
1070 | buf[len] = '\0'; | |
1071 | strcat (buf, dbuf); | |
1072 | DECL_ASSEMBLER_NAME (function) = get_identifier (buf); | |
72b7eeff | 1073 | parm = build_decl (PARM_DECL, in_charge_identifier, integer_type_node); |
8d08fdba | 1074 | /* Mark the artificial `__in_chrg' parameter as "artificial". */ |
700f8a87 | 1075 | SET_DECL_ARTIFICIAL (parm); |
8d08fdba | 1076 | TREE_READONLY (parm) = 1; |
72b7eeff | 1077 | DECL_ARG_TYPE (parm) = integer_type_node; |
8d08fdba MS |
1078 | /* This is the same chain as DECL_ARGUMENTS (...). */ |
1079 | TREE_CHAIN (last_function_parms) = parm; | |
1080 | ||
f30432d7 MS |
1081 | fntype = build_cplus_method_type (qualtype, void_type_node, |
1082 | arg_types); | |
1083 | if (raises) | |
1084 | { | |
1085 | fntype = build_exception_variant (fntype, raises); | |
1086 | } | |
1087 | TREE_TYPE (function) = fntype; | |
8d08fdba MS |
1088 | TYPE_HAS_DESTRUCTOR (ctype) = 1; |
1089 | } | |
1090 | else | |
1091 | { | |
1092 | tree these_arg_types; | |
1093 | ||
1094 | if (DECL_CONSTRUCTOR_FOR_VBASE_P (function)) | |
1095 | { | |
1096 | arg_types = hash_tree_chain (integer_type_node, | |
1097 | TREE_CHAIN (arg_types)); | |
f30432d7 MS |
1098 | fntype = build_cplus_method_type (qualtype, |
1099 | TREE_TYPE (TREE_TYPE (function)), | |
1100 | arg_types); | |
1101 | if (raises) | |
1102 | { | |
1103 | fntype = build_exception_variant (fntype, raises); | |
1104 | } | |
1105 | TREE_TYPE (function) = fntype; | |
8d08fdba MS |
1106 | arg_types = TYPE_ARG_TYPES (TREE_TYPE (function)); |
1107 | } | |
1108 | ||
1109 | these_arg_types = arg_types; | |
1110 | ||
1111 | if (TREE_CODE (TREE_TYPE (function)) == FUNCTION_TYPE) | |
1112 | /* Only true for static member functions. */ | |
f30432d7 | 1113 | these_arg_types = hash_tree_chain (build_pointer_type (qualtype), |
700f8a87 | 1114 | arg_types); |
8d08fdba MS |
1115 | |
1116 | DECL_ASSEMBLER_NAME (function) | |
1117 | = build_decl_overload (fn_name, these_arg_types, | |
1118 | 1 + DECL_CONSTRUCTOR_P (function)); | |
8d08fdba MS |
1119 | } |
1120 | ||
1121 | DECL_ARGUMENTS (function) = last_function_parms; | |
1122 | /* First approximations. */ | |
1123 | DECL_CONTEXT (function) = ctype; | |
1124 | DECL_CLASS_CONTEXT (function) = ctype; | |
1125 | } | |
1126 | ||
1127 | /* Work on the expr used by alignof (this is only called by the parser). */ | |
e92cc029 | 1128 | |
8d08fdba MS |
1129 | tree |
1130 | grok_alignof (expr) | |
1131 | tree expr; | |
1132 | { | |
1133 | tree best, t; | |
1134 | int bestalign; | |
1135 | ||
abff8e06 JM |
1136 | if (processing_template_decl) |
1137 | return build_min (ALIGNOF_EXPR, sizetype, expr); | |
1138 | ||
8d08fdba MS |
1139 | if (TREE_CODE (expr) == COMPONENT_REF |
1140 | && DECL_BIT_FIELD (TREE_OPERAND (expr, 1))) | |
1141 | error ("`__alignof__' applied to a bit-field"); | |
1142 | ||
1143 | if (TREE_CODE (expr) == INDIRECT_REF) | |
1144 | { | |
1145 | best = t = TREE_OPERAND (expr, 0); | |
1146 | bestalign = TYPE_ALIGN (TREE_TYPE (TREE_TYPE (t))); | |
1147 | ||
1148 | while (TREE_CODE (t) == NOP_EXPR | |
1149 | && TREE_CODE (TREE_TYPE (TREE_OPERAND (t, 0))) == POINTER_TYPE) | |
1150 | { | |
1151 | int thisalign; | |
1152 | t = TREE_OPERAND (t, 0); | |
1153 | thisalign = TYPE_ALIGN (TREE_TYPE (TREE_TYPE (t))); | |
1154 | if (thisalign > bestalign) | |
1155 | best = t, bestalign = thisalign; | |
1156 | } | |
1157 | return c_alignof (TREE_TYPE (TREE_TYPE (best))); | |
1158 | } | |
1159 | else | |
1160 | { | |
1161 | /* ANSI says arrays and fns are converted inside comma. | |
1162 | But we can't convert them in build_compound_expr | |
1163 | because that would break commas in lvalues. | |
1164 | So do the conversion here if operand was a comma. */ | |
1165 | if (TREE_CODE (expr) == COMPOUND_EXPR | |
1166 | && (TREE_CODE (TREE_TYPE (expr)) == ARRAY_TYPE | |
1167 | || TREE_CODE (TREE_TYPE (expr)) == FUNCTION_TYPE)) | |
1168 | expr = default_conversion (expr); | |
1169 | return c_alignof (TREE_TYPE (expr)); | |
1170 | } | |
1171 | } | |
1172 | ||
1173 | /* Create an ARRAY_REF, checking for the user doing things backwards | |
1174 | along the way. */ | |
e92cc029 | 1175 | |
8d08fdba MS |
1176 | tree |
1177 | grok_array_decl (array_expr, index_exp) | |
1178 | tree array_expr, index_exp; | |
1179 | { | |
1180 | tree type = TREE_TYPE (array_expr); | |
b7484fbe | 1181 | tree p1, p2, i1, i2; |
8d08fdba MS |
1182 | |
1183 | if (type == error_mark_node || index_exp == error_mark_node) | |
1184 | return error_mark_node; | |
5156628f | 1185 | if (processing_template_decl) |
5566b478 MS |
1186 | return build_min (ARRAY_REF, type ? TREE_TYPE (type) : NULL_TREE, |
1187 | array_expr, index_exp); | |
1188 | ||
8d08fdba MS |
1189 | if (type == NULL_TREE) |
1190 | { | |
1191 | /* Something has gone very wrong. Assume we are mistakenly reducing | |
1192 | an expression instead of a declaration. */ | |
1193 | error ("parser may be lost: is there a '{' missing somewhere?"); | |
1194 | return NULL_TREE; | |
1195 | } | |
1196 | ||
1197 | if (TREE_CODE (type) == OFFSET_TYPE | |
1198 | || TREE_CODE (type) == REFERENCE_TYPE) | |
1199 | type = TREE_TYPE (type); | |
1200 | ||
1201 | /* If they have an `operator[]', use that. */ | |
3c215895 | 1202 | if (IS_AGGR_TYPE (type) || IS_AGGR_TYPE (TREE_TYPE (index_exp))) |
8d08fdba | 1203 | return build_opfncall (ARRAY_REF, LOOKUP_NORMAL, |
00595019 | 1204 | array_expr, index_exp, NULL_TREE); |
8d08fdba MS |
1205 | |
1206 | /* Otherwise, create an ARRAY_REF for a pointer or array type. */ | |
8d08fdba | 1207 | |
b7484fbe MS |
1208 | if (TREE_CODE (type) == ARRAY_TYPE) |
1209 | p1 = array_expr; | |
1210 | else | |
1211 | p1 = build_expr_type_conversion (WANT_POINTER, array_expr, 0); | |
8d08fdba | 1212 | |
b7484fbe MS |
1213 | if (TREE_CODE (TREE_TYPE (index_exp)) == ARRAY_TYPE) |
1214 | p2 = index_exp; | |
1215 | else | |
1216 | p2 = build_expr_type_conversion (WANT_POINTER, index_exp, 0); | |
8d08fdba | 1217 | |
b7484fbe MS |
1218 | i1 = build_expr_type_conversion (WANT_INT | WANT_ENUM, array_expr, 0); |
1219 | i2 = build_expr_type_conversion (WANT_INT | WANT_ENUM, index_exp, 0); | |
8d08fdba | 1220 | |
b7484fbe MS |
1221 | if ((p1 && i2) && (i1 && p2)) |
1222 | error ("ambiguous conversion for array subscript"); | |
8d08fdba | 1223 | |
b7484fbe MS |
1224 | if (p1 && i2) |
1225 | array_expr = p1, index_exp = i2; | |
1226 | else if (i1 && p2) | |
1227 | array_expr = p2, index_exp = i1; | |
1228 | else | |
1229 | { | |
1230 | cp_error ("invalid types `%T[%T]' for array subscript", | |
1231 | type, TREE_TYPE (index_exp)); | |
1232 | return error_mark_node; | |
1233 | } | |
1234 | ||
1235 | if (array_expr == error_mark_node || index_exp == error_mark_node) | |
1236 | error ("ambiguous conversion for array subscript"); | |
1237 | ||
1238 | return build_array_ref (array_expr, index_exp); | |
8d08fdba MS |
1239 | } |
1240 | ||
1241 | /* Given the cast expression EXP, checking out its validity. Either return | |
1242 | an error_mark_node if there was an unavoidable error, return a cast to | |
1243 | void for trying to delete a pointer w/ the value 0, or return the | |
1244 | call to delete. If DOING_VEC is 1, we handle things differently | |
1245 | for doing an array delete. If DOING_VEC is 2, they gave us the | |
1246 | array size as an argument to delete. | |
1247 | Implements ARM $5.3.4. This is called from the parser. */ | |
e92cc029 | 1248 | |
8d08fdba MS |
1249 | tree |
1250 | delete_sanity (exp, size, doing_vec, use_global_delete) | |
1251 | tree exp, size; | |
1252 | int doing_vec, use_global_delete; | |
1253 | { | |
5566b478 MS |
1254 | tree t; |
1255 | tree type; | |
1256 | enum tree_code code; | |
8d08fdba MS |
1257 | /* For a regular vector delete (aka, no size argument) we will pass |
1258 | this down as a NULL_TREE into build_vec_delete. */ | |
1259 | tree maxindex = NULL_TREE; | |
5566b478 | 1260 | |
909e536a MS |
1261 | if (exp == error_mark_node) |
1262 | return exp; | |
1263 | ||
5156628f | 1264 | if (processing_template_decl) |
5566b478 MS |
1265 | { |
1266 | t = build_min (DELETE_EXPR, void_type_node, exp, size); | |
1267 | DELETE_EXPR_USE_GLOBAL (t) = use_global_delete; | |
1268 | DELETE_EXPR_USE_VEC (t) = doing_vec; | |
1269 | return t; | |
1270 | } | |
1271 | ||
19754d4c JM |
1272 | t = exp; |
1273 | if (TREE_CODE (t) == OFFSET_REF) | |
1274 | t = resolve_offset_ref (t); | |
1275 | t = stabilize_reference (convert_from_reference (t)); | |
5566b478 MS |
1276 | type = TREE_TYPE (t); |
1277 | code = TREE_CODE (type); | |
8d08fdba MS |
1278 | |
1279 | switch (doing_vec) | |
1280 | { | |
1281 | case 2: | |
1282 | maxindex = build_binary_op (MINUS_EXPR, size, integer_one_node, 1); | |
d22c8596 | 1283 | pedwarn ("anachronistic use of array size in vector delete"); |
8d08fdba MS |
1284 | /* Fall through. */ |
1285 | case 1: | |
8d08fdba MS |
1286 | break; |
1287 | default: | |
1288 | if (code != POINTER_TYPE) | |
1289 | { | |
1290 | cp_error ("type `%#T' argument given to `delete', expected pointer", | |
1291 | type); | |
1292 | return error_mark_node; | |
1293 | } | |
1294 | ||
59be0cdd | 1295 | /* Deleting a pointer with the value zero is valid and has no effect. */ |
8d08fdba MS |
1296 | if (integer_zerop (t)) |
1297 | return build1 (NOP_EXPR, void_type_node, t); | |
1298 | } | |
1299 | ||
f376e137 | 1300 | if (code == POINTER_TYPE) |
8d08fdba | 1301 | { |
8ccc31eb | 1302 | #if 0 |
19754d4c | 1303 | /* As of Valley Forge, you can delete a pointer to const. */ |
f376e137 MS |
1304 | if (TREE_READONLY (TREE_TYPE (type))) |
1305 | { | |
1306 | error ("`const *' cannot be deleted"); | |
1307 | return error_mark_node; | |
1308 | } | |
8ccc31eb | 1309 | #endif |
19754d4c | 1310 | /* You can't delete functions. */ |
f376e137 MS |
1311 | if (TREE_CODE (TREE_TYPE (type)) == FUNCTION_TYPE) |
1312 | { | |
1313 | error ("cannot delete a function"); | |
1314 | return error_mark_node; | |
1315 | } | |
8d08fdba MS |
1316 | } |
1317 | ||
a28e3c7f | 1318 | #if 0 |
8d08fdba MS |
1319 | /* If the type has no destructor, then we should build a regular |
1320 | delete, instead of a vector delete. Otherwise, we would end | |
1321 | up passing a bogus offset into __builtin_delete, which is | |
1322 | not expecting it. */ | |
1323 | if (doing_vec | |
1324 | && TREE_CODE (type) == POINTER_TYPE | |
1325 | && !TYPE_HAS_DESTRUCTOR (TREE_TYPE (type))) | |
8926095f MS |
1326 | { |
1327 | doing_vec = 0; | |
1328 | use_global_delete = 1; | |
1329 | } | |
a28e3c7f | 1330 | #endif |
8d08fdba MS |
1331 | |
1332 | if (doing_vec) | |
5566b478 | 1333 | return build_vec_delete (t, maxindex, integer_one_node, |
a28e3c7f | 1334 | integer_two_node, use_global_delete); |
8d08fdba | 1335 | else |
863adfc0 MS |
1336 | { |
1337 | if (IS_AGGR_TYPE (TREE_TYPE (type)) | |
1338 | && TYPE_GETS_REG_DELETE (TREE_TYPE (type))) | |
1339 | { | |
1340 | /* Only do access checking here; we'll be calling op delete | |
1341 | from the destructor. */ | |
da4768fe JM |
1342 | tree tmp = build_op_delete_call (DELETE_EXPR, t, |
1343 | size_zero_node, LOOKUP_NORMAL); | |
863adfc0 MS |
1344 | if (tmp == error_mark_node) |
1345 | return error_mark_node; | |
1346 | } | |
1347 | ||
1348 | return build_delete (type, t, integer_three_node, | |
bd6dd845 | 1349 | LOOKUP_NORMAL, use_global_delete); |
863adfc0 | 1350 | } |
8d08fdba MS |
1351 | } |
1352 | ||
98c1c668 JM |
1353 | /* Report an error if the indicated template declaration is not the |
1354 | sort of thing that should be a member template. */ | |
1355 | ||
1356 | void | |
1357 | check_member_template (tmpl) | |
1358 | tree tmpl; | |
1359 | { | |
1360 | tree decl; | |
1361 | ||
1362 | my_friendly_assert (TREE_CODE (tmpl) == TEMPLATE_DECL, 0); | |
1363 | decl = DECL_TEMPLATE_RESULT (tmpl); | |
1364 | ||
1701f21e MM |
1365 | if (TREE_CODE (decl) == FUNCTION_DECL |
1366 | || (TREE_CODE (decl) == TYPE_DECL | |
1367 | && IS_AGGR_TYPE (TREE_TYPE (decl)))) | |
98c1c668 JM |
1368 | { |
1369 | if (current_function_decl) | |
1370 | /* 14.5.2.2 [temp.mem] | |
1371 | ||
1372 | A local class shall not have member templates. */ | |
38e01259 | 1373 | cp_error ("declaration of member template `%#D' in local class", |
98c1c668 JM |
1374 | decl); |
1375 | ||
1701f21e | 1376 | if (TREE_CODE (decl) == FUNCTION_DECL && DECL_VIRTUAL_P (decl)) |
98c1c668 JM |
1377 | { |
1378 | /* 14.5.2.3 [temp.mem] | |
1379 | ||
1380 | A member function template shall not be virtual. */ | |
1381 | cp_error | |
1382 | ("invalid use of `virtual' in template declaration of `%#D'", | |
1383 | decl); | |
1384 | DECL_VIRTUAL_P (decl) = 0; | |
1385 | } | |
1386 | ||
1387 | /* The debug-information generating code doesn't know what to do | |
1388 | with member templates. */ | |
1389 | DECL_IGNORED_P (tmpl) = 1; | |
1390 | } | |
98c1c668 JM |
1391 | else |
1392 | cp_error ("template declaration of `%#D'", decl); | |
1393 | } | |
1394 | ||
8d08fdba MS |
1395 | /* Sanity check: report error if this function FUNCTION is not |
1396 | really a member of the class (CTYPE) it is supposed to belong to. | |
1397 | CNAME is the same here as it is for grokclassfn above. */ | |
1398 | ||
f30432d7 | 1399 | tree |
5566b478 MS |
1400 | check_classfn (ctype, function) |
1401 | tree ctype, function; | |
8d08fdba MS |
1402 | { |
1403 | tree fn_name = DECL_NAME (function); | |
2c73f9f5 | 1404 | tree fndecl, fndecls; |
5566b478 | 1405 | tree method_vec = CLASSTYPE_METHOD_VEC (complete_type (ctype)); |
8d08fdba MS |
1406 | tree *methods = 0; |
1407 | tree *end = 0; | |
98c1c668 | 1408 | tree templates = NULL_TREE; |
8d08fdba MS |
1409 | |
1410 | if (method_vec != 0) | |
1411 | { | |
1412 | methods = &TREE_VEC_ELT (method_vec, 0); | |
1413 | end = TREE_VEC_END (method_vec); | |
1414 | ||
1415 | /* First suss out ctors and dtors. */ | |
2c73f9f5 | 1416 | if (*methods && fn_name == DECL_NAME (OVL_CURRENT (*methods)) |
fc378698 MS |
1417 | && DECL_CONSTRUCTOR_P (function)) |
1418 | goto got_it; | |
2c73f9f5 | 1419 | if (*++methods && fn_name == DECL_NAME (OVL_CURRENT (*methods)) |
fc378698 | 1420 | && DESTRUCTOR_NAME_P (DECL_ASSEMBLER_NAME (function))) |
8d08fdba MS |
1421 | goto got_it; |
1422 | ||
1423 | while (++methods != end) | |
1424 | { | |
98c1c668 | 1425 | fndecl = *methods; |
2c73f9f5 | 1426 | if (fn_name == DECL_NAME (OVL_CURRENT (*methods))) |
8d08fdba MS |
1427 | { |
1428 | got_it: | |
2c73f9f5 ML |
1429 | for (fndecls = *methods; fndecls != NULL_TREE; |
1430 | fndecls = OVL_NEXT (fndecls)) | |
8d08fdba | 1431 | { |
2c73f9f5 | 1432 | fndecl = OVL_CURRENT (fndecls); |
f84b4be9 JM |
1433 | /* The DECL_ASSEMBLER_NAME for a TEMPLATE_DECL is |
1434 | not mangled, so the check below does not work | |
1435 | correctly in that case. */ | |
1436 | if (TREE_CODE (function) != TEMPLATE_DECL | |
1437 | && TREE_CODE (fndecl) != TEMPLATE_DECL | |
1438 | && (DECL_ASSEMBLER_NAME (function) | |
1439 | == DECL_ASSEMBLER_NAME (fndecl))) | |
f30432d7 | 1440 | return fndecl; |
f84b4be9 JM |
1441 | |
1442 | /* We cannot simply call decls_match because this | |
1443 | doesn't work for static member functions that are | |
1444 | pretending to be methods, and because the name | |
1445 | may have been changed by asm("new_name"). */ | |
8145f082 MS |
1446 | if (DECL_NAME (function) == DECL_NAME (fndecl)) |
1447 | { | |
1448 | tree p1 = TYPE_ARG_TYPES (TREE_TYPE (function)); | |
1449 | tree p2 = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); | |
1450 | ||
1451 | /* Get rid of the this parameter on functions that become | |
e92cc029 | 1452 | static. */ |
8145f082 MS |
1453 | if (DECL_STATIC_FUNCTION_P (fndecl) |
1454 | && TREE_CODE (TREE_TYPE (function)) == METHOD_TYPE) | |
1455 | p1 = TREE_CHAIN (p1); | |
1456 | ||
1457 | if (comptypes (TREE_TYPE (TREE_TYPE (function)), | |
1458 | TREE_TYPE (TREE_TYPE (fndecl)), 1) | |
386b8a85 JM |
1459 | && compparms (p1, p2, 3) |
1460 | && (DECL_TEMPLATE_SPECIALIZATION (function) | |
1461 | == DECL_TEMPLATE_SPECIALIZATION (fndecl)) | |
1462 | && (!DECL_TEMPLATE_SPECIALIZATION (function) | |
1463 | || (DECL_TI_TEMPLATE (function) | |
1464 | == DECL_TI_TEMPLATE (fndecl)))) | |
5566b478 | 1465 | return fndecl; |
98c1c668 | 1466 | |
386b8a85 | 1467 | if (is_member_template (fndecl)) |
98c1c668 JM |
1468 | /* This function might be an instantiation |
1469 | or specialization of fndecl. */ | |
1470 | templates = | |
e66d884e | 1471 | scratch_tree_cons (NULL_TREE, fndecl, templates); |
8145f082 | 1472 | } |
8d08fdba MS |
1473 | } |
1474 | break; /* loser */ | |
1475 | } | |
98c1c668 JM |
1476 | else if (TREE_CODE (fndecl) == TEMPLATE_DECL |
1477 | && IDENTIFIER_TYPENAME_P (DECL_NAME (fndecl)) | |
1478 | && IDENTIFIER_TYPENAME_P (fn_name)) | |
1479 | /* The method in the class is a member template | |
1480 | conversion operator. We are declaring another | |
1481 | conversion operator. It is possible that even though | |
1482 | the names don't match, there is some specialization | |
1483 | occurring. */ | |
1484 | templates = | |
e66d884e | 1485 | scratch_tree_cons (NULL_TREE, fndecl, templates); |
8d08fdba MS |
1486 | } |
1487 | } | |
1488 | ||
98c1c668 JM |
1489 | if (templates) |
1490 | /* This function might be an instantiation or a specialization. | |
1491 | We should verify that this is possible. If it is, we must | |
1492 | somehow add the new declaration to the method vector for the | |
1493 | class. Perhaps we should use add_method? For now, we simply | |
1494 | return NULL_TREE, which lets the caller know that this | |
1495 | function is new, but we don't print an error message. */ | |
1496 | return NULL_TREE; | |
1497 | ||
8d08fdba | 1498 | if (methods != end) |
f30432d7 MS |
1499 | { |
1500 | tree fndecl = *methods; | |
1501 | cp_error ("prototype for `%#D' does not match any in class `%T'", | |
1502 | function, ctype); | |
2c73f9f5 ML |
1503 | cp_error_at ("candidate%s: %+#D", OVL_NEXT (fndecl) ? "s are" : " is", |
1504 | OVL_CURRENT (fndecl)); | |
1505 | while (fndecl = OVL_NEXT (fndecl), fndecl) | |
1506 | cp_error_at (" %#D", OVL_CURRENT(fndecl)); | |
f30432d7 | 1507 | } |
8d08fdba MS |
1508 | else |
1509 | { | |
1510 | methods = 0; | |
00595019 MS |
1511 | cp_error ("no `%#D' member function declared in class `%T'", |
1512 | function, ctype); | |
8d08fdba MS |
1513 | } |
1514 | ||
fc378698 MS |
1515 | /* If we did not find the method in the class, add it to avoid |
1516 | spurious errors. */ | |
8d08fdba | 1517 | add_method (ctype, methods, function); |
f30432d7 | 1518 | return NULL_TREE; |
8d08fdba MS |
1519 | } |
1520 | ||
1521 | /* Process the specs, declarator (NULL if omitted) and width (NULL if omitted) | |
1522 | of a structure component, returning a FIELD_DECL node. | |
1523 | QUALS is a list of type qualifiers for this decl (such as for declaring | |
1524 | const member functions). | |
1525 | ||
1526 | This is done during the parsing of the struct declaration. | |
1527 | The FIELD_DECL nodes are chained together and the lot of them | |
1528 | are ultimately passed to `build_struct' to make the RECORD_TYPE node. | |
1529 | ||
1530 | C++: | |
1531 | ||
1532 | If class A defines that certain functions in class B are friends, then | |
1533 | the way I have set things up, it is B who is interested in permission | |
1534 | granted by A. However, it is in A's context that these declarations | |
1535 | are parsed. By returning a void_type_node, class A does not attempt | |
1536 | to incorporate the declarations of the friends within its structure. | |
1537 | ||
1538 | DO NOT MAKE ANY CHANGES TO THIS CODE WITHOUT MAKING CORRESPONDING | |
1539 | CHANGES TO CODE IN `start_method'. */ | |
1540 | ||
1541 | tree | |
c11b6f21 MS |
1542 | grokfield (declarator, declspecs, init, asmspec_tree, attrlist) |
1543 | tree declarator, declspecs, init, asmspec_tree, attrlist; | |
8d08fdba MS |
1544 | { |
1545 | register tree value; | |
1546 | char *asmspec = 0; | |
6060a796 | 1547 | int flags = LOOKUP_ONLYCONVERTING; |
8d08fdba MS |
1548 | |
1549 | /* Convert () initializers to = initializers. */ | |
1550 | if (init == NULL_TREE && declarator != NULL_TREE | |
1551 | && TREE_CODE (declarator) == CALL_EXPR | |
1552 | && TREE_OPERAND (declarator, 0) | |
1553 | && (TREE_CODE (TREE_OPERAND (declarator, 0)) == IDENTIFIER_NODE | |
1554 | || TREE_CODE (TREE_OPERAND (declarator, 0)) == SCOPE_REF) | |
1555 | && parmlist_is_exprlist (TREE_OPERAND (declarator, 1))) | |
1556 | { | |
1557 | init = TREE_OPERAND (declarator, 1); | |
1558 | declarator = TREE_OPERAND (declarator, 0); | |
6060a796 | 1559 | flags = 0; |
8d08fdba MS |
1560 | } |
1561 | ||
cffa8729 | 1562 | if (declspecs == NULL_TREE |
7fcdf4c2 MS |
1563 | && TREE_CODE (declarator) == SCOPE_REF |
1564 | && TREE_CODE (TREE_OPERAND (declarator, 1)) == IDENTIFIER_NODE) | |
cffa8729 MS |
1565 | { |
1566 | /* Access declaration */ | |
5566b478 MS |
1567 | if (! IS_AGGR_TYPE_CODE (TREE_CODE (TREE_OPERAND (declarator, 0)))) |
1568 | ; | |
1569 | else if (TREE_COMPLEXITY (declarator) == current_class_depth) | |
cffa8729 MS |
1570 | pop_nested_class (1); |
1571 | return do_class_using_decl (declarator); | |
1572 | } | |
1573 | ||
8d08fdba MS |
1574 | if (init |
1575 | && TREE_CODE (init) == TREE_LIST | |
1576 | && TREE_VALUE (init) == error_mark_node | |
1577 | && TREE_CHAIN (init) == NULL_TREE) | |
cffa8729 | 1578 | init = NULL_TREE; |
8d08fdba | 1579 | |
c11b6f21 | 1580 | value = grokdeclarator (declarator, declspecs, FIELD, init != 0, NULL_TREE); |
8d08fdba | 1581 | if (! value) |
a0a33927 | 1582 | return value; /* friend or constructor went bad. */ |
8d08fdba MS |
1583 | |
1584 | /* Pass friendly classes back. */ | |
1585 | if (TREE_CODE (value) == VOID_TYPE) | |
1586 | return void_type_node; | |
1587 | ||
1588 | if (DECL_NAME (value) != NULL_TREE | |
1589 | && IDENTIFIER_POINTER (DECL_NAME (value))[0] == '_' | |
1590 | && ! strcmp (IDENTIFIER_POINTER (DECL_NAME (value)), "_vptr")) | |
3c215895 JM |
1591 | cp_error ("member `%D' conflicts with virtual function table field name", |
1592 | value); | |
8d08fdba MS |
1593 | |
1594 | /* Stash away type declarations. */ | |
1595 | if (TREE_CODE (value) == TYPE_DECL) | |
1596 | { | |
1597 | DECL_NONLOCAL (value) = 1; | |
700f8a87 MS |
1598 | DECL_CONTEXT (value) = current_class_type; |
1599 | DECL_CLASS_CONTEXT (value) = current_class_type; | |
8d08fdba | 1600 | CLASSTYPE_LOCAL_TYPEDECLS (current_class_type) = 1; |
8145f082 | 1601 | |
61cd1234 MM |
1602 | /* Now that we've updated the context, we need to remangle the |
1603 | name for this TYPE_DECL. */ | |
1604 | DECL_ASSEMBLER_NAME (value) = DECL_NAME (value); | |
1605 | DECL_ASSEMBLER_NAME (value) = | |
1606 | get_identifier (build_overload_name (TREE_TYPE (value), 1, 1)); | |
1607 | ||
8ccc31eb | 1608 | pushdecl_class_level (value); |
8d08fdba MS |
1609 | return value; |
1610 | } | |
1611 | ||
1612 | if (IS_SIGNATURE (current_class_type) | |
1613 | && TREE_CODE (value) != FUNCTION_DECL) | |
1614 | { | |
1615 | error ("field declaration not allowed in signature"); | |
1616 | return void_type_node; | |
1617 | } | |
1618 | ||
1619 | if (DECL_IN_AGGR_P (value)) | |
1620 | { | |
1621 | cp_error ("`%D' is already defined in the class %T", value, | |
1622 | DECL_CONTEXT (value)); | |
1623 | return void_type_node; | |
1624 | } | |
1625 | ||
8d08fdba MS |
1626 | if (asmspec_tree) |
1627 | asmspec = TREE_STRING_POINTER (asmspec_tree); | |
1628 | ||
1629 | if (init) | |
1630 | { | |
1631 | if (IS_SIGNATURE (current_class_type) | |
1632 | && TREE_CODE (value) == FUNCTION_DECL) | |
1633 | { | |
1634 | error ("function declarations cannot have initializers in signature"); | |
1635 | init = NULL_TREE; | |
1636 | } | |
1637 | else if (TREE_CODE (value) == FUNCTION_DECL) | |
1638 | { | |
1639 | grok_function_init (value, init); | |
1640 | init = NULL_TREE; | |
1641 | } | |
5b605f68 | 1642 | else if (pedantic && TREE_CODE (value) != VAR_DECL) |
a0a33927 MS |
1643 | /* Already complained in grokdeclarator. */ |
1644 | init = NULL_TREE; | |
8d08fdba MS |
1645 | else |
1646 | { | |
a0a33927 MS |
1647 | /* We allow initializers to become parameters to base |
1648 | initializers. */ | |
8d08fdba MS |
1649 | if (TREE_CODE (init) == TREE_LIST) |
1650 | { | |
1651 | if (TREE_CHAIN (init) == NULL_TREE) | |
1652 | init = TREE_VALUE (init); | |
1653 | else | |
1654 | init = digest_init (TREE_TYPE (value), init, (tree *)0); | |
1655 | } | |
1656 | ||
1657 | if (TREE_CODE (init) == CONST_DECL) | |
1658 | init = DECL_INITIAL (init); | |
1659 | else if (TREE_READONLY_DECL_P (init)) | |
1660 | init = decl_constant_value (init); | |
1661 | else if (TREE_CODE (init) == CONSTRUCTOR) | |
1662 | init = digest_init (TREE_TYPE (value), init, (tree *)0); | |
1663 | my_friendly_assert (TREE_PERMANENT (init), 192); | |
1664 | if (init == error_mark_node) | |
1665 | /* We must make this look different than `error_mark_node' | |
1666 | because `decl_const_value' would mis-interpret it | |
1667 | as only meaning that this VAR_DECL is defined. */ | |
1668 | init = build1 (NOP_EXPR, TREE_TYPE (value), init); | |
5156628f | 1669 | else if (processing_template_decl) |
5566b478 | 1670 | ; |
8d08fdba MS |
1671 | else if (! TREE_CONSTANT (init)) |
1672 | { | |
1673 | /* We can allow references to things that are effectively | |
1674 | static, since references are initialized with the address. */ | |
1675 | if (TREE_CODE (TREE_TYPE (value)) != REFERENCE_TYPE | |
1676 | || (TREE_STATIC (init) == 0 | |
1677 | && (TREE_CODE_CLASS (TREE_CODE (init)) != 'd' | |
1678 | || DECL_EXTERNAL (init) == 0))) | |
1679 | { | |
1680 | error ("field initializer is not constant"); | |
1681 | init = error_mark_node; | |
1682 | } | |
1683 | } | |
1684 | } | |
1685 | } | |
1686 | ||
b3417a04 | 1687 | /* The corresponding pop_obstacks is in cp_finish_decl. */ |
8d08fdba MS |
1688 | push_obstacks_nochange (); |
1689 | ||
5156628f | 1690 | if (processing_template_decl && ! current_function_decl |
5566b478 | 1691 | && (TREE_CODE (value) == VAR_DECL || TREE_CODE (value) == FUNCTION_DECL)) |
3ac3d9ea | 1692 | value = push_template_decl (value); |
5566b478 | 1693 | |
45537677 MS |
1694 | if (attrlist) |
1695 | cplus_decl_attributes (value, TREE_PURPOSE (attrlist), | |
1696 | TREE_VALUE (attrlist)); | |
1697 | ||
8d08fdba MS |
1698 | if (TREE_CODE (value) == VAR_DECL) |
1699 | { | |
3ac3d9ea MM |
1700 | my_friendly_assert (TREE_PUBLIC (value), 0); |
1701 | ||
8d08fdba MS |
1702 | /* We cannot call pushdecl here, because that would |
1703 | fill in the value of our TREE_CHAIN. Instead, we | |
b3417a04 | 1704 | modify cp_finish_decl to do the right thing, namely, to |
8d08fdba | 1705 | put this decl out straight away. */ |
3ac3d9ea MM |
1706 | /* current_class_type can be NULL_TREE in case of error. */ |
1707 | if (asmspec == 0 && current_class_type) | |
8d08fdba | 1708 | { |
3ac3d9ea MM |
1709 | TREE_PUBLIC (value) = 1; |
1710 | DECL_INITIAL (value) = error_mark_node; | |
1711 | DECL_ASSEMBLER_NAME (value) | |
1712 | = build_static_name (current_class_type, DECL_NAME (value)); | |
1713 | } | |
1714 | if (! processing_template_decl) | |
1715 | pending_statics = perm_tree_cons (NULL_TREE, value, pending_statics); | |
1716 | ||
1717 | /* Static consts need not be initialized in the class definition. */ | |
1718 | if (init != NULL_TREE && TYPE_NEEDS_CONSTRUCTING (TREE_TYPE (value))) | |
1719 | { | |
1720 | static int explanation = 0; | |
1721 | ||
1722 | error ("initializer invalid for static member with constructor"); | |
1723 | if (explanation++ == 0) | |
1724 | error ("(you really want to initialize it separately)"); | |
1725 | init = 0; | |
8d08fdba | 1726 | } |
3ac3d9ea MM |
1727 | /* Force the compiler to know when an uninitialized static |
1728 | const member is being used. */ | |
1729 | if (TYPE_READONLY (value) && init == 0) | |
1730 | TREE_USED (value) = 1; | |
8d08fdba MS |
1731 | DECL_INITIAL (value) = init; |
1732 | DECL_IN_AGGR_P (value) = 1; | |
5566b478 MS |
1733 | DECL_CONTEXT (value) = current_class_type; |
1734 | DECL_CLASS_CONTEXT (value) = current_class_type; | |
8d08fdba | 1735 | |
b3417a04 | 1736 | cp_finish_decl (value, init, asmspec_tree, 1, flags); |
8d08fdba MS |
1737 | pushdecl_class_level (value); |
1738 | return value; | |
1739 | } | |
1740 | if (TREE_CODE (value) == FIELD_DECL) | |
1741 | { | |
1742 | if (asmspec) | |
6060a796 MS |
1743 | { |
1744 | /* This must override the asm specifier which was placed | |
1745 | by grokclassfn. Lay this out fresh. */ | |
1746 | DECL_RTL (value) = NULL_RTX; | |
1747 | DECL_ASSEMBLER_NAME (value) = get_identifier (asmspec); | |
1748 | } | |
8d08fdba MS |
1749 | if (DECL_INITIAL (value) == error_mark_node) |
1750 | init = error_mark_node; | |
b3417a04 | 1751 | cp_finish_decl (value, init, asmspec_tree, 1, flags); |
8d08fdba MS |
1752 | DECL_INITIAL (value) = init; |
1753 | DECL_IN_AGGR_P (value) = 1; | |
1754 | return value; | |
1755 | } | |
1756 | if (TREE_CODE (value) == FUNCTION_DECL) | |
1757 | { | |
6060a796 MS |
1758 | if (asmspec) |
1759 | { | |
1760 | /* This must override the asm specifier which was placed | |
1761 | by grokclassfn. Lay this out fresh. */ | |
1762 | DECL_RTL (value) = NULL_RTX; | |
1763 | DECL_ASSEMBLER_NAME (value) = get_identifier (asmspec); | |
1764 | } | |
b3417a04 | 1765 | cp_finish_decl (value, init, asmspec_tree, 1, flags); |
8d08fdba MS |
1766 | |
1767 | /* Pass friends back this way. */ | |
1768 | if (DECL_FRIEND_P (value)) | |
1769 | return void_type_node; | |
1770 | ||
f376e137 | 1771 | #if 0 /* Just because a fn is declared doesn't mean we'll try to define it. */ |
a0a33927 | 1772 | if (current_function_decl && ! IS_SIGNATURE (current_class_type)) |
7177d104 MS |
1773 | cp_error ("method `%#D' of local class must be defined in class body", |
1774 | value); | |
f376e137 | 1775 | #endif |
7177d104 | 1776 | |
8d08fdba MS |
1777 | DECL_IN_AGGR_P (value) = 1; |
1778 | return value; | |
1779 | } | |
1780 | my_friendly_abort (21); | |
1781 | /* NOTREACHED */ | |
1782 | return NULL_TREE; | |
1783 | } | |
1784 | ||
1785 | /* Like `grokfield', but for bitfields. | |
1786 | WIDTH is non-NULL for bit fields only, and is an INTEGER_CST node. */ | |
1787 | ||
1788 | tree | |
1789 | grokbitfield (declarator, declspecs, width) | |
1790 | tree declarator, declspecs, width; | |
1791 | { | |
f30432d7 | 1792 | register tree value = grokdeclarator (declarator, declspecs, BITFIELD, |
c11b6f21 | 1793 | 0, NULL_TREE); |
8d08fdba MS |
1794 | |
1795 | if (! value) return NULL_TREE; /* friends went bad. */ | |
1796 | ||
1797 | /* Pass friendly classes back. */ | |
1798 | if (TREE_CODE (value) == VOID_TYPE) | |
1799 | return void_type_node; | |
1800 | ||
1801 | if (TREE_CODE (value) == TYPE_DECL) | |
1802 | { | |
1803 | cp_error ("cannot declare `%D' to be a bitfield type", value); | |
1804 | return NULL_TREE; | |
1805 | } | |
1806 | ||
1807 | if (IS_SIGNATURE (current_class_type)) | |
1808 | { | |
1809 | error ("field declaration not allowed in signature"); | |
1810 | return void_type_node; | |
1811 | } | |
1812 | ||
1813 | if (DECL_IN_AGGR_P (value)) | |
1814 | { | |
1815 | cp_error ("`%D' is already defined in the class %T", value, | |
1816 | DECL_CONTEXT (value)); | |
1817 | return void_type_node; | |
1818 | } | |
1819 | ||
1820 | GNU_xref_member (current_class_name, value); | |
1821 | ||
1822 | if (TREE_STATIC (value)) | |
1823 | { | |
1824 | cp_error ("static member `%D' cannot be a bitfield", value); | |
1825 | return NULL_TREE; | |
1826 | } | |
b3417a04 | 1827 | cp_finish_decl (value, NULL_TREE, NULL_TREE, 0, 0); |
8d08fdba MS |
1828 | |
1829 | if (width != error_mark_node) | |
1830 | { | |
5566b478 MS |
1831 | constant_expression_warning (width); |
1832 | DECL_INITIAL (value) = width; | |
1833 | DECL_BIT_FIELD (value) = 1; | |
8d08fdba MS |
1834 | } |
1835 | ||
1836 | DECL_IN_AGGR_P (value) = 1; | |
1837 | return value; | |
1838 | } | |
1839 | ||
8d08fdba | 1840 | tree |
51c184be MS |
1841 | grokoptypename (declspecs, declarator) |
1842 | tree declspecs, declarator; | |
8d08fdba | 1843 | { |
c11b6f21 | 1844 | tree t = grokdeclarator (declarator, declspecs, TYPENAME, 0, NULL_TREE); |
51c184be | 1845 | return build_typename_overload (t); |
8d08fdba MS |
1846 | } |
1847 | ||
1848 | /* When a function is declared with an initializer, | |
1849 | do the right thing. Currently, there are two possibilities: | |
1850 | ||
1851 | class B | |
1852 | { | |
1853 | public: | |
1854 | // initialization possibility #1. | |
1855 | virtual void f () = 0; | |
1856 | int g (); | |
1857 | }; | |
1858 | ||
1859 | class D1 : B | |
1860 | { | |
1861 | public: | |
1862 | int d1; | |
1863 | // error, no f (); | |
1864 | }; | |
1865 | ||
1866 | class D2 : B | |
1867 | { | |
1868 | public: | |
1869 | int d2; | |
1870 | void f (); | |
1871 | }; | |
1872 | ||
1873 | class D3 : B | |
1874 | { | |
1875 | public: | |
1876 | int d3; | |
1877 | // initialization possibility #2 | |
1878 | void f () = B::f; | |
1879 | }; | |
1880 | ||
1881 | */ | |
1882 | ||
f0e01782 MS |
1883 | int |
1884 | copy_assignment_arg_p (parmtype, virtualp) | |
1885 | tree parmtype; | |
1886 | int virtualp; | |
1887 | { | |
691c003d MS |
1888 | if (current_class_type == NULL_TREE) |
1889 | return 0; | |
1890 | ||
f0e01782 MS |
1891 | if (TREE_CODE (parmtype) == REFERENCE_TYPE) |
1892 | parmtype = TREE_TYPE (parmtype); | |
1893 | ||
1894 | if ((TYPE_MAIN_VARIANT (parmtype) == current_class_type) | |
824b9a4c MS |
1895 | #if 0 |
1896 | /* Non-standard hack to support old Booch components. */ | |
1897 | || (! virtualp && DERIVED_FROM_P (parmtype, current_class_type)) | |
1898 | #endif | |
1899 | ) | |
f0e01782 MS |
1900 | return 1; |
1901 | ||
1902 | return 0; | |
1903 | } | |
1904 | ||
8d08fdba MS |
1905 | static void |
1906 | grok_function_init (decl, init) | |
1907 | tree decl; | |
1908 | tree init; | |
1909 | { | |
1910 | /* An initializer for a function tells how this function should | |
1911 | be inherited. */ | |
1912 | tree type = TREE_TYPE (decl); | |
8d08fdba MS |
1913 | |
1914 | if (TREE_CODE (type) == FUNCTION_TYPE) | |
1915 | cp_error ("initializer specified for non-member function `%D'", decl); | |
cffa8729 MS |
1916 | #if 0 |
1917 | /* We'll check for this in finish_struct_1. */ | |
8d08fdba MS |
1918 | else if (DECL_VINDEX (decl) == NULL_TREE) |
1919 | cp_error ("initializer specified for non-virtual method `%D'", decl); | |
cffa8729 | 1920 | #endif |
8d08fdba MS |
1921 | else if (integer_zerop (init)) |
1922 | { | |
8926095f | 1923 | #if 0 |
8d08fdba MS |
1924 | /* Mark this function as being "defined". */ |
1925 | DECL_INITIAL (decl) = error_mark_node; | |
e92cc029 | 1926 | /* pure virtual destructors must be defined. */ |
8926095f MS |
1927 | /* pure virtual needs to be defined (as abort) only when put in |
1928 | vtbl. For wellformed call, it should be itself. pr4737 */ | |
8d08fdba MS |
1929 | if (!DESTRUCTOR_NAME_P (DECL_ASSEMBLER_NAME (decl))) |
1930 | { | |
8926095f | 1931 | extern tree abort_fndecl; |
8d08fdba MS |
1932 | /* Give this node rtl from `abort'. */ |
1933 | DECL_RTL (decl) = DECL_RTL (abort_fndecl); | |
1934 | } | |
8926095f | 1935 | #endif |
8d08fdba | 1936 | DECL_ABSTRACT_VIRTUAL_P (decl) = 1; |
f0e01782 MS |
1937 | if (DECL_NAME (decl) == ansi_opname [(int) MODIFY_EXPR]) |
1938 | { | |
1939 | tree parmtype | |
1940 | = TREE_VALUE (TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (decl)))); | |
1941 | ||
1942 | if (copy_assignment_arg_p (parmtype, 1)) | |
1943 | TYPE_HAS_ABSTRACT_ASSIGN_REF (current_class_type) = 1; | |
1944 | } | |
8d08fdba | 1945 | } |
8d08fdba MS |
1946 | else |
1947 | cp_error ("invalid initializer for virtual method `%D'", decl); | |
1948 | } | |
1949 | \f | |
28cbf42c MS |
1950 | void |
1951 | cplus_decl_attributes (decl, attributes, prefix_attributes) | |
f6abb50a | 1952 | tree decl, attributes, prefix_attributes; |
8d08fdba | 1953 | { |
e8abc66f MS |
1954 | if (decl == NULL_TREE || decl == void_type_node) |
1955 | return; | |
1956 | ||
1957 | if (TREE_CODE (decl) == TEMPLATE_DECL) | |
1958 | decl = DECL_TEMPLATE_RESULT (decl); | |
1959 | ||
1960 | decl_attributes (decl, attributes, prefix_attributes); | |
863adfc0 MS |
1961 | |
1962 | if (TREE_CODE (decl) == TYPE_DECL) | |
1963 | SET_IDENTIFIER_TYPE_VALUE (DECL_NAME (decl), TREE_TYPE (decl)); | |
8d08fdba MS |
1964 | } |
1965 | \f | |
1966 | /* CONSTRUCTOR_NAME: | |
1967 | Return the name for the constructor (or destructor) for the | |
1968 | specified class. Argument can be RECORD_TYPE, TYPE_DECL, or | |
1969 | IDENTIFIER_NODE. When given a template, this routine doesn't | |
1970 | lose the specialization. */ | |
e92cc029 | 1971 | |
8d08fdba MS |
1972 | tree |
1973 | constructor_name_full (thing) | |
1974 | tree thing; | |
1975 | { | |
73b0fce8 | 1976 | if (TREE_CODE (thing) == TEMPLATE_TYPE_PARM |
97e7cbe4 JM |
1977 | || TREE_CODE (thing) == TEMPLATE_TEMPLATE_PARM |
1978 | || TREE_CODE (thing) == TYPENAME_TYPE) | |
be99da77 MS |
1979 | thing = TYPE_NAME (thing); |
1980 | else if (IS_AGGR_TYPE_CODE (TREE_CODE (thing))) | |
8d08fdba MS |
1981 | { |
1982 | if (TYPE_WAS_ANONYMOUS (thing) && TYPE_HAS_CONSTRUCTOR (thing)) | |
42c7b807 | 1983 | thing = DECL_NAME (OVL_CURRENT (TREE_VEC_ELT (CLASSTYPE_METHOD_VEC (thing), 0))); |
8d08fdba MS |
1984 | else |
1985 | thing = TYPE_NAME (thing); | |
1986 | } | |
1987 | if (TREE_CODE (thing) == TYPE_DECL | |
1988 | || (TREE_CODE (thing) == TEMPLATE_DECL | |
5566b478 | 1989 | && TREE_CODE (DECL_TEMPLATE_RESULT (thing)) == TYPE_DECL)) |
8d08fdba MS |
1990 | thing = DECL_NAME (thing); |
1991 | my_friendly_assert (TREE_CODE (thing) == IDENTIFIER_NODE, 197); | |
1992 | return thing; | |
1993 | } | |
1994 | ||
1995 | /* CONSTRUCTOR_NAME: | |
1996 | Return the name for the constructor (or destructor) for the | |
1997 | specified class. Argument can be RECORD_TYPE, TYPE_DECL, or | |
1998 | IDENTIFIER_NODE. When given a template, return the plain | |
1999 | unspecialized name. */ | |
e92cc029 | 2000 | |
8d08fdba MS |
2001 | tree |
2002 | constructor_name (thing) | |
2003 | tree thing; | |
2004 | { | |
2005 | tree t; | |
2006 | thing = constructor_name_full (thing); | |
2007 | t = IDENTIFIER_TEMPLATE (thing); | |
2008 | if (!t) | |
2009 | return thing; | |
5566b478 | 2010 | return t; |
8d08fdba MS |
2011 | } |
2012 | \f | |
2013 | /* Cache the value of this class's main virtual function table pointer | |
2014 | in a register variable. This will save one indirection if a | |
2015 | more than one virtual function call is made this function. */ | |
e92cc029 | 2016 | |
8d08fdba MS |
2017 | void |
2018 | setup_vtbl_ptr () | |
2019 | { | |
f30432d7 | 2020 | extern tree base_init_expr; |
8d08fdba | 2021 | |
a9aedbc2 | 2022 | if (base_init_expr == 0 |
8d08fdba | 2023 | && DECL_CONSTRUCTOR_P (current_function_decl)) |
5566b478 | 2024 | { |
5156628f | 2025 | if (processing_template_decl) |
5566b478 MS |
2026 | add_tree (build_min_nt |
2027 | (CTOR_INITIALIZER, | |
2028 | current_member_init_list, current_base_init_list)); | |
2029 | else | |
2030 | emit_base_init (current_class_type, 0); | |
2031 | } | |
8d08fdba MS |
2032 | } |
2033 | ||
2034 | /* Record the existence of an addressable inline function. */ | |
e92cc029 | 2035 | |
8d08fdba MS |
2036 | void |
2037 | mark_inline_for_output (decl) | |
2038 | tree decl; | |
2039 | { | |
6060a796 | 2040 | decl = DECL_MAIN_VARIANT (decl); |
8926095f MS |
2041 | if (DECL_SAVED_INLINE (decl)) |
2042 | return; | |
6060a796 | 2043 | my_friendly_assert (TREE_PERMANENT (decl), 363); |
8926095f | 2044 | DECL_SAVED_INLINE (decl) = 1; |
a5894242 | 2045 | #if 0 |
8d08fdba MS |
2046 | if (DECL_PENDING_INLINE_INFO (decl) != 0 |
2047 | && ! DECL_PENDING_INLINE_INFO (decl)->deja_vu) | |
2048 | { | |
2049 | struct pending_inline *t = pending_inlines; | |
2050 | my_friendly_assert (DECL_SAVED_INSNS (decl) == 0, 198); | |
2051 | while (t) | |
2052 | { | |
2053 | if (t == DECL_PENDING_INLINE_INFO (decl)) | |
2054 | break; | |
2055 | t = t->next; | |
2056 | } | |
2057 | if (t == 0) | |
2058 | { | |
2059 | t = DECL_PENDING_INLINE_INFO (decl); | |
2060 | t->next = pending_inlines; | |
2061 | pending_inlines = t; | |
2062 | } | |
2063 | DECL_PENDING_INLINE_INFO (decl) = 0; | |
2064 | } | |
a5894242 | 2065 | #endif |
8926095f | 2066 | saved_inlines = perm_tree_cons (NULL_TREE, decl, saved_inlines); |
8d08fdba MS |
2067 | } |
2068 | ||
2069 | void | |
2070 | clear_temp_name () | |
2071 | { | |
2072 | temp_name_counter = 0; | |
2073 | } | |
2074 | ||
2075 | /* Hand off a unique name which can be used for variable we don't really | |
2076 | want to know about anyway, for example, the anonymous variables which | |
2077 | are needed to make references work. Declare this thing so we can use it. | |
2078 | The variable created will be of type TYPE. | |
2079 | ||
2080 | STATICP is nonzero if this variable should be static. */ | |
2081 | ||
2082 | tree | |
2083 | get_temp_name (type, staticp) | |
2084 | tree type; | |
2085 | int staticp; | |
2086 | { | |
2087 | char buf[sizeof (AUTO_TEMP_FORMAT) + 20]; | |
2088 | tree decl; | |
a9aedbc2 | 2089 | int toplev = toplevel_bindings_p (); |
8d08fdba MS |
2090 | |
2091 | push_obstacks_nochange (); | |
2092 | if (toplev || staticp) | |
2093 | { | |
2094 | end_temporary_allocation (); | |
2095 | sprintf (buf, AUTO_TEMP_FORMAT, global_temp_name_counter++); | |
2096 | decl = pushdecl_top_level (build_decl (VAR_DECL, get_identifier (buf), type)); | |
2097 | } | |
2098 | else | |
2099 | { | |
2100 | sprintf (buf, AUTO_TEMP_FORMAT, temp_name_counter++); | |
2101 | decl = pushdecl (build_decl (VAR_DECL, get_identifier (buf), type)); | |
2102 | } | |
2103 | TREE_USED (decl) = 1; | |
2104 | TREE_STATIC (decl) = staticp; | |
fc378698 | 2105 | DECL_ARTIFICIAL (decl) = 1; |
8d08fdba MS |
2106 | |
2107 | /* If this is a local variable, then lay out its rtl now. | |
2108 | Otherwise, callers of this function are responsible for dealing | |
2109 | with this variable's rtl. */ | |
2110 | if (! toplev) | |
2111 | { | |
2112 | expand_decl (decl); | |
2113 | expand_decl_init (decl); | |
2114 | } | |
2115 | pop_obstacks (); | |
2116 | ||
2117 | return decl; | |
2118 | } | |
2119 | ||
2120 | /* Get a variable which we can use for multiple assignments. | |
2121 | It is not entered into current_binding_level, because | |
2122 | that breaks things when it comes time to do final cleanups | |
2123 | (which take place "outside" the binding contour of the function). */ | |
e92cc029 | 2124 | |
8d08fdba MS |
2125 | tree |
2126 | get_temp_regvar (type, init) | |
2127 | tree type, init; | |
2128 | { | |
8d08fdba MS |
2129 | tree decl; |
2130 | ||
a0d5fba7 | 2131 | decl = build_decl (VAR_DECL, NULL_TREE, type); |
8d08fdba MS |
2132 | TREE_USED (decl) = 1; |
2133 | DECL_REGISTER (decl) = 1; | |
a0d5fba7 | 2134 | DECL_ARTIFICIAL (decl) = 1; |
8d08fdba | 2135 | |
a0d5fba7 | 2136 | DECL_RTL (decl) = assign_temp (type, 2, 0, 1); |
8d08fdba MS |
2137 | /* We can expand these without fear, since they cannot need |
2138 | constructors or destructors. */ | |
a0d5fba7 JM |
2139 | expand_expr (build_modify_expr (decl, INIT_EXPR, init), |
2140 | NULL_RTX, VOIDmode, 0); | |
8d08fdba | 2141 | |
8d08fdba MS |
2142 | return decl; |
2143 | } | |
2144 | ||
cb96daa2 MM |
2145 | /* Hunts through the global anonymous union ANON_DECL, building |
2146 | appropriate VAR_DECLs. Stores cleanups on the list of ELEMS, and | |
2147 | returns a VAR_DECL whose size is the same as the size of the | |
2148 | ANON_DECL, if one is available. */ | |
ce1b9eb9 | 2149 | |
cb96daa2 MM |
2150 | tree |
2151 | build_anon_union_vars (anon_decl, elems, static_p, external_p) | |
ce1b9eb9 | 2152 | tree anon_decl; |
cb96daa2 MM |
2153 | tree* elems; |
2154 | int static_p; | |
2155 | int external_p; | |
ce1b9eb9 | 2156 | { |
cb96daa2 | 2157 | tree type = TREE_TYPE (anon_decl); |
ce1b9eb9 | 2158 | tree main_decl = NULL_TREE; |
cb96daa2 | 2159 | tree field; |
ce1b9eb9 | 2160 | |
cb96daa2 | 2161 | for (field = TYPE_FIELDS (type); |
ce1b9eb9 MM |
2162 | field != NULL_TREE; |
2163 | field = TREE_CHAIN (field)) | |
2164 | { | |
cb96daa2 | 2165 | tree decl; |
ce1b9eb9 MM |
2166 | if (TREE_CODE (field) != FIELD_DECL) |
2167 | continue; | |
2168 | ||
cb96daa2 MM |
2169 | if (TREE_PRIVATE (field)) |
2170 | cp_pedwarn_at ("private member `%#D' in anonymous union", field); | |
2171 | else if (TREE_PROTECTED (field)) | |
2172 | cp_pedwarn_at ("protected member `%#D' in anonymous union", field); | |
2173 | ||
2174 | if (DECL_NAME (field) == NULL_TREE | |
2175 | && TREE_CODE (TREE_TYPE (field)) == UNION_TYPE) | |
67ffc812 MM |
2176 | { |
2177 | decl = build_anon_union_vars (field, elems, static_p, external_p); | |
2178 | if (!decl) | |
2179 | continue; | |
2180 | } | |
cb96daa2 MM |
2181 | else |
2182 | { | |
2183 | decl = build_decl (VAR_DECL, DECL_NAME (field), TREE_TYPE (field)); | |
2184 | /* tell `pushdecl' that this is not tentative. */ | |
2185 | DECL_INITIAL (decl) = error_mark_node; | |
2186 | TREE_PUBLIC (decl) = 0; | |
2187 | TREE_STATIC (decl) = static_p; | |
2188 | DECL_EXTERNAL (decl) = external_p; | |
2189 | decl = pushdecl (decl); | |
2190 | DECL_INITIAL (decl) = NULL_TREE; | |
2191 | } | |
2192 | ||
ce1b9eb9 MM |
2193 | /* Only write out one anon union element--choose the one that |
2194 | can hold them all. */ | |
2195 | if (main_decl == NULL_TREE | |
cb96daa2 MM |
2196 | && simple_cst_equal (DECL_SIZE (decl), |
2197 | DECL_SIZE (anon_decl)) == 1) | |
2198 | main_decl = decl; | |
2199 | else | |
ce1b9eb9 MM |
2200 | /* ??? This causes there to be no debug info written out |
2201 | about this decl. */ | |
cb96daa2 MM |
2202 | TREE_ASM_WRITTEN (decl) = 1; |
2203 | ||
2204 | if (DECL_NAME (field) == NULL_TREE | |
2205 | && TREE_CODE (TREE_TYPE (field)) == UNION_TYPE) | |
2206 | /* The remainder of the processing was already done in the | |
2207 | recursive call. */ | |
2208 | continue; | |
ce1b9eb9 | 2209 | |
cb96daa2 MM |
2210 | /* If there's a cleanup to do, it belongs in the |
2211 | TREE_PURPOSE of the following TREE_LIST. */ | |
2212 | *elems = scratch_tree_cons (NULL_TREE, decl, *elems); | |
2213 | TREE_TYPE (*elems) = type; | |
2214 | } | |
2215 | ||
ce1b9eb9 MM |
2216 | return main_decl; |
2217 | } | |
2218 | ||
8d08fdba MS |
2219 | /* Finish off the processing of a UNION_TYPE structure. |
2220 | If there are static members, then all members are | |
2221 | static, and must be laid out together. If the | |
2222 | union is an anonymous union, we arrange for that | |
2223 | as well. PUBLIC_P is nonzero if this union is | |
2224 | not declared static. */ | |
e92cc029 | 2225 | |
8d08fdba MS |
2226 | void |
2227 | finish_anon_union (anon_union_decl) | |
2228 | tree anon_union_decl; | |
2229 | { | |
2230 | tree type = TREE_TYPE (anon_union_decl); | |
8d08fdba | 2231 | tree elems = NULL_TREE; |
cb96daa2 | 2232 | tree main_decl; |
8d08fdba MS |
2233 | int public_p = TREE_PUBLIC (anon_union_decl); |
2234 | int static_p = TREE_STATIC (anon_union_decl); | |
2235 | int external_p = DECL_EXTERNAL (anon_union_decl); | |
2236 | ||
cb96daa2 | 2237 | if (TYPE_FIELDS (type) == NULL_TREE) |
8d08fdba MS |
2238 | return; |
2239 | ||
2240 | if (public_p) | |
2241 | { | |
2242 | error ("global anonymous unions must be declared static"); | |
2243 | return; | |
2244 | } | |
2245 | ||
cb96daa2 MM |
2246 | main_decl = build_anon_union_vars (anon_union_decl, &elems, |
2247 | static_p, external_p); | |
ce1b9eb9 | 2248 | |
8d08fdba MS |
2249 | if (static_p) |
2250 | { | |
a292b002 MS |
2251 | if (main_decl) |
2252 | { | |
a9aedbc2 | 2253 | make_decl_rtl (main_decl, 0, toplevel_bindings_p ()); |
a292b002 MS |
2254 | DECL_RTL (anon_union_decl) = DECL_RTL (main_decl); |
2255 | } | |
2256 | else | |
2257 | { | |
2258 | warning ("anonymous union with no members"); | |
2259 | return; | |
2260 | } | |
8d08fdba MS |
2261 | } |
2262 | ||
2263 | /* The following call assumes that there are never any cleanups | |
2264 | for anonymous unions--a reasonable assumption. */ | |
2265 | expand_anon_union_decl (anon_union_decl, NULL_TREE, elems); | |
8d08fdba MS |
2266 | } |
2267 | ||
8d08fdba MS |
2268 | /* Finish processing a builtin type TYPE. It's name is NAME, |
2269 | its fields are in the array FIELDS. LEN is the number of elements | |
2270 | in FIELDS minus one, or put another way, it is the maximum subscript | |
2271 | used in FIELDS. | |
2272 | ||
2273 | It is given the same alignment as ALIGN_TYPE. */ | |
e92cc029 | 2274 | |
8d08fdba MS |
2275 | void |
2276 | finish_builtin_type (type, name, fields, len, align_type) | |
2277 | tree type; | |
2278 | char *name; | |
2279 | tree fields[]; | |
2280 | int len; | |
2281 | tree align_type; | |
2282 | { | |
2283 | register int i; | |
2284 | ||
2285 | TYPE_FIELDS (type) = fields[0]; | |
2286 | for (i = 0; i < len; i++) | |
2287 | { | |
2288 | layout_type (TREE_TYPE (fields[i])); | |
2289 | DECL_FIELD_CONTEXT (fields[i]) = type; | |
2290 | TREE_CHAIN (fields[i]) = fields[i+1]; | |
2291 | } | |
2292 | DECL_FIELD_CONTEXT (fields[i]) = type; | |
2293 | DECL_CLASS_CONTEXT (fields[i]) = type; | |
2294 | TYPE_ALIGN (type) = TYPE_ALIGN (align_type); | |
2295 | layout_type (type); | |
2296 | #if 0 /* not yet, should get fixed properly later */ | |
2297 | TYPE_NAME (type) = make_type_decl (get_identifier (name), type); | |
2298 | #else | |
2299 | TYPE_NAME (type) = build_decl (TYPE_DECL, get_identifier (name), type); | |
2300 | #endif | |
d2e5ee5c | 2301 | TYPE_STUB_DECL (type) = TYPE_NAME (type); |
8d08fdba MS |
2302 | layout_decl (TYPE_NAME (type), 0); |
2303 | } | |
2304 | \f | |
2305 | /* Auxiliary functions to make type signatures for | |
2306 | `operator new' and `operator delete' correspond to | |
2307 | what compiler will be expecting. */ | |
2308 | ||
8d08fdba MS |
2309 | tree |
2310 | coerce_new_type (type) | |
2311 | tree type; | |
2312 | { | |
2313 | int e1 = 0, e2 = 0; | |
2314 | ||
2315 | if (TREE_CODE (type) == METHOD_TYPE) | |
2316 | type = build_function_type (TREE_TYPE (type), TREE_CHAIN (TYPE_ARG_TYPES (type))); | |
2317 | if (TREE_TYPE (type) != ptr_type_node) | |
2318 | e1 = 1, error ("`operator new' must return type `void *'"); | |
2319 | ||
2320 | /* Technically the type must be `size_t', but we may not know | |
2321 | what that is. */ | |
2322 | if (TYPE_ARG_TYPES (type) == NULL_TREE) | |
2323 | e1 = 1, error ("`operator new' takes type `size_t' parameter"); | |
2324 | else if (TREE_CODE (TREE_VALUE (TYPE_ARG_TYPES (type))) != INTEGER_TYPE | |
2325 | || TYPE_PRECISION (TREE_VALUE (TYPE_ARG_TYPES (type))) != TYPE_PRECISION (sizetype)) | |
2326 | e2 = 1, error ("`operator new' takes type `size_t' as first parameter"); | |
2327 | if (e2) | |
2328 | type = build_function_type (ptr_type_node, tree_cons (NULL_TREE, sizetype, TREE_CHAIN (TYPE_ARG_TYPES (type)))); | |
2329 | else if (e1) | |
2330 | type = build_function_type (ptr_type_node, TYPE_ARG_TYPES (type)); | |
2331 | return type; | |
2332 | } | |
2333 | ||
2334 | tree | |
2335 | coerce_delete_type (type) | |
2336 | tree type; | |
2337 | { | |
a703fb38 KG |
2338 | int e1 = 0, e2 = 0; |
2339 | #if 0 | |
2340 | e3 = 0; | |
2341 | #endif | |
8d08fdba MS |
2342 | tree arg_types = TYPE_ARG_TYPES (type); |
2343 | ||
2344 | if (TREE_CODE (type) == METHOD_TYPE) | |
2345 | { | |
2346 | type = build_function_type (TREE_TYPE (type), TREE_CHAIN (arg_types)); | |
2347 | arg_types = TREE_CHAIN (arg_types); | |
2348 | } | |
824b9a4c | 2349 | |
8d08fdba MS |
2350 | if (TREE_TYPE (type) != void_type_node) |
2351 | e1 = 1, error ("`operator delete' must return type `void'"); | |
824b9a4c | 2352 | |
8d08fdba MS |
2353 | if (arg_types == NULL_TREE |
2354 | || TREE_VALUE (arg_types) != ptr_type_node) | |
2355 | e2 = 1, error ("`operator delete' takes type `void *' as first parameter"); | |
2356 | ||
da4768fe | 2357 | #if 0 |
8d08fdba MS |
2358 | if (arg_types |
2359 | && TREE_CHAIN (arg_types) | |
2360 | && TREE_CHAIN (arg_types) != void_list_node) | |
2361 | { | |
2362 | /* Again, technically this argument must be `size_t', but again | |
2363 | we may not know what that is. */ | |
2364 | tree t2 = TREE_VALUE (TREE_CHAIN (arg_types)); | |
2365 | if (TREE_CODE (t2) != INTEGER_TYPE | |
2366 | || TYPE_PRECISION (t2) != TYPE_PRECISION (sizetype)) | |
2367 | e3 = 1, error ("second argument to `operator delete' must be of type `size_t'"); | |
2368 | else if (TREE_CHAIN (TREE_CHAIN (arg_types)) != void_list_node) | |
2369 | { | |
2370 | e3 = 1; | |
2371 | if (TREE_CHAIN (TREE_CHAIN (arg_types))) | |
2372 | error ("too many arguments in declaration of `operator delete'"); | |
2373 | else | |
2374 | error ("`...' invalid in specification of `operator delete'"); | |
2375 | } | |
2376 | } | |
824b9a4c | 2377 | |
8d08fdba | 2378 | if (e3) |
824b9a4c MS |
2379 | arg_types = tree_cons (NULL_TREE, ptr_type_node, |
2380 | build_tree_list (NULL_TREE, sizetype)); | |
8d08fdba MS |
2381 | else if (e3 |= e2) |
2382 | { | |
2383 | if (arg_types == NULL_TREE) | |
a28e3c7f | 2384 | arg_types = tree_cons (NULL_TREE, ptr_type_node, void_list_node); |
8d08fdba MS |
2385 | else |
2386 | arg_types = tree_cons (NULL_TREE, ptr_type_node, TREE_CHAIN (arg_types)); | |
2387 | } | |
2388 | else e3 |= e1; | |
da4768fe | 2389 | #endif |
8d08fdba | 2390 | |
da4768fe JM |
2391 | if (e2) |
2392 | arg_types = tree_cons (NULL_TREE, ptr_type_node, | |
2393 | arg_types ? TREE_CHAIN (arg_types): NULL_TREE); | |
2394 | if (e2 || e1) | |
8d08fdba MS |
2395 | type = build_function_type (void_type_node, arg_types); |
2396 | ||
2397 | return type; | |
2398 | } | |
2399 | \f | |
72b7eeff MS |
2400 | extern tree abort_fndecl; |
2401 | ||
8d08fdba | 2402 | static void |
8926095f | 2403 | mark_vtable_entries (decl) |
8d08fdba MS |
2404 | tree decl; |
2405 | { | |
f30432d7 MS |
2406 | tree entries = CONSTRUCTOR_ELTS (DECL_INITIAL (decl)); |
2407 | ||
6b5fbb55 MS |
2408 | if (flag_rtti) |
2409 | { | |
2410 | tree fnaddr = (flag_vtable_thunks ? TREE_VALUE (TREE_CHAIN (entries)) | |
2411 | : FNADDR_FROM_VTABLE_ENTRY (TREE_VALUE (entries))); | |
2412 | tree fn = TREE_OPERAND (fnaddr, 0); | |
2413 | TREE_ADDRESSABLE (fn) = 1; | |
2414 | mark_used (fn); | |
2415 | } | |
f30432d7 | 2416 | skip_rtti_stuff (&entries); |
8d08fdba | 2417 | |
8d08fdba MS |
2418 | for (; entries; entries = TREE_CHAIN (entries)) |
2419 | { | |
72b7eeff MS |
2420 | tree fnaddr = (flag_vtable_thunks ? TREE_VALUE (entries) |
2421 | : FNADDR_FROM_VTABLE_ENTRY (TREE_VALUE (entries))); | |
8d08fdba | 2422 | tree fn = TREE_OPERAND (fnaddr, 0); |
8926095f | 2423 | TREE_ADDRESSABLE (fn) = 1; |
72b7eeff | 2424 | if (DECL_LANG_SPECIFIC (fn) && DECL_ABSTRACT_VIRTUAL_P (fn)) |
49c249e1 JM |
2425 | { |
2426 | TREE_OPERAND (fnaddr, 0) = fn = copy_node (fn); | |
2427 | DECL_RTL (fn) = DECL_RTL (abort_fndecl); | |
7e3af374 | 2428 | mark_used (abort_fndecl); |
49c249e1 | 2429 | } |
a80e4195 MS |
2430 | if (TREE_CODE (fn) == THUNK_DECL && DECL_EXTERNAL (fn)) |
2431 | { | |
2432 | DECL_EXTERNAL (fn) = 0; | |
2433 | emit_thunk (fn); | |
2434 | } | |
5566b478 | 2435 | mark_used (fn); |
7177d104 MS |
2436 | } |
2437 | } | |
2438 | ||
d11ad92e MS |
2439 | /* Set DECL up to have the closest approximation of "initialized common" |
2440 | linkage available. */ | |
2441 | ||
2442 | void | |
2443 | comdat_linkage (decl) | |
2444 | tree decl; | |
2445 | { | |
d11ad92e | 2446 | if (flag_weak) |
7fcdf4c2 MS |
2447 | make_decl_one_only (decl); |
2448 | else | |
2449 | TREE_PUBLIC (decl) = 0; | |
ab23f787 JM |
2450 | |
2451 | if (DECL_LANG_SPECIFIC (decl)) | |
2452 | DECL_COMDAT (decl) = 1; | |
d11ad92e MS |
2453 | } |
2454 | ||
b385c841 JM |
2455 | /* For win32 we also want to put explicit instantiations in |
2456 | linkonce sections, so that they will be merged with implicit | |
2457 | instantiations; otherwise we get duplicate symbol errors. */ | |
2458 | ||
2459 | void | |
2460 | maybe_make_one_only (decl) | |
2461 | tree decl; | |
2462 | { | |
2463 | /* This is not necessary on targets that support weak symbols, because | |
2464 | the implicit instantiations will defer to the explicit one. */ | |
2465 | if (! supports_one_only () || SUPPORTS_WEAK) | |
2466 | return; | |
2467 | ||
2468 | /* We can't set DECL_COMDAT on functions, or finish_file will think | |
2469 | we can get away with not emitting them if they aren't used. | |
2470 | We can't use make_decl_one_only for variables, because their | |
2471 | DECL_INITIAL may not have been set properly yet. */ | |
2472 | ||
2473 | if (TREE_CODE (decl) == FUNCTION_DECL) | |
2474 | make_decl_one_only (decl); | |
2475 | else | |
2476 | comdat_linkage (decl); | |
2477 | } | |
2478 | ||
d18c083e | 2479 | /* Set TREE_PUBLIC and/or DECL_EXTERN on the vtable DECL, |
7177d104 MS |
2480 | based on TYPE and other static flags. |
2481 | ||
2482 | Note that anything public is tagged TREE_PUBLIC, whether | |
2483 | it's public in this file or in another one. */ | |
2484 | ||
5b605f68 | 2485 | void |
e3417fcd MS |
2486 | import_export_vtable (decl, type, final) |
2487 | tree decl, type; | |
2488 | int final; | |
7177d104 | 2489 | { |
e3417fcd MS |
2490 | if (DECL_INTERFACE_KNOWN (decl)) |
2491 | return; | |
2492 | ||
2493 | /* +e0 or +e1 */ | |
2494 | if (write_virtuals < 2 && write_virtuals != 0) | |
7177d104 MS |
2495 | { |
2496 | TREE_PUBLIC (decl) = 1; | |
2497 | if (write_virtuals < 0) | |
2498 | DECL_EXTERNAL (decl) = 1; | |
e3417fcd MS |
2499 | DECL_INTERFACE_KNOWN (decl) = 1; |
2500 | } | |
2501 | else if (CLASSTYPE_INTERFACE_KNOWN (type)) | |
2502 | { | |
2503 | TREE_PUBLIC (decl) = 1; | |
2504 | DECL_EXTERNAL (decl) = ! CLASSTYPE_VTABLE_NEEDS_WRITING (type); | |
2505 | DECL_INTERFACE_KNOWN (decl) = 1; | |
eb773359 JM |
2506 | |
2507 | /* For WIN32 we also want to put explicit instantiations in | |
2508 | linkonce sections. */ | |
b385c841 JM |
2509 | if (CLASSTYPE_EXPLICIT_INSTANTIATION (type)) |
2510 | maybe_make_one_only (decl); | |
e3417fcd MS |
2511 | } |
2512 | else | |
2513 | { | |
b7484fbe MS |
2514 | /* We can only wait to decide if we have real non-inline virtual |
2515 | functions in our class, or if we come from a template. */ | |
e3417fcd MS |
2516 | |
2517 | int found = CLASSTYPE_TEMPLATE_INSTANTIATION (type); | |
2518 | ||
1f109f0f | 2519 | #ifndef MULTIPLE_SYMBOL_SPACES |
e3417fcd MS |
2520 | if (! found && ! final) |
2521 | { | |
e3417fcd | 2522 | tree method; |
72b7eeff MS |
2523 | for (method = TYPE_METHODS (type); method != NULL_TREE; |
2524 | method = TREE_CHAIN (method)) | |
faae18ab MS |
2525 | if (DECL_VINDEX (method) != NULL_TREE |
2526 | && ! DECL_THIS_INLINE (method) | |
e3417fcd MS |
2527 | && ! DECL_ABSTRACT_VIRTUAL_P (method)) |
2528 | { | |
2529 | found = 1; | |
2530 | break; | |
2531 | } | |
2532 | } | |
1f109f0f | 2533 | #endif |
e3417fcd MS |
2534 | |
2535 | if (final || ! found) | |
2536 | { | |
d11ad92e | 2537 | comdat_linkage (decl); |
e3417fcd | 2538 | DECL_EXTERNAL (decl) = 0; |
e3417fcd MS |
2539 | } |
2540 | else | |
2541 | { | |
2542 | TREE_PUBLIC (decl) = 1; | |
2543 | DECL_EXTERNAL (decl) = 1; | |
e3417fcd | 2544 | } |
8d08fdba MS |
2545 | } |
2546 | } | |
2547 | ||
5b605f68 MS |
2548 | static void |
2549 | import_export_template (type) | |
2550 | tree type; | |
2551 | { | |
2552 | if (CLASSTYPE_IMPLICIT_INSTANTIATION (type) | |
2553 | && ! flag_implicit_templates | |
2554 | && CLASSTYPE_INTERFACE_UNKNOWN (type)) | |
2555 | { | |
2556 | SET_CLASSTYPE_INTERFACE_KNOWN (type); | |
2557 | CLASSTYPE_INTERFACE_ONLY (type) = 1; | |
2558 | CLASSTYPE_VTABLE_NEEDS_WRITING (type) = 0; | |
2559 | } | |
2560 | } | |
2561 | ||
c73964b2 | 2562 | int |
d18c083e | 2563 | finish_prevtable_vardecl (prev, vars) |
8d08fdba MS |
2564 | tree prev, vars; |
2565 | { | |
51c184be | 2566 | tree ctype = DECL_CONTEXT (vars); |
5b605f68 | 2567 | import_export_template (ctype); |
7177d104 | 2568 | |
eb448459 | 2569 | #ifndef MULTIPLE_SYMBOL_SPACES |
b7484fbe MS |
2570 | if (CLASSTYPE_INTERFACE_UNKNOWN (ctype) && TYPE_VIRTUAL_P (ctype) |
2571 | && ! CLASSTYPE_TEMPLATE_INSTANTIATION (ctype)) | |
51c184be MS |
2572 | { |
2573 | tree method; | |
72b7eeff MS |
2574 | for (method = TYPE_METHODS (ctype); method != NULL_TREE; |
2575 | method = TREE_CHAIN (method)) | |
51c184be | 2576 | { |
28cbf42c | 2577 | if (DECL_VINDEX (method) != NULL_TREE |
faae18ab | 2578 | && !DECL_THIS_INLINE (method) |
a0a33927 | 2579 | && !DECL_ABSTRACT_VIRTUAL_P (method)) |
51c184be | 2580 | { |
8926095f | 2581 | SET_CLASSTYPE_INTERFACE_KNOWN (ctype); |
3bd1e206 JM |
2582 | CLASSTYPE_VTABLE_NEEDS_WRITING (ctype) |
2583 | = ! DECL_REALLY_EXTERN (method); | |
2584 | CLASSTYPE_INTERFACE_ONLY (ctype) = DECL_REALLY_EXTERN (method); | |
51c184be MS |
2585 | break; |
2586 | } | |
2587 | } | |
2588 | } | |
c11b6f21 | 2589 | #endif |
51c184be | 2590 | |
e3417fcd | 2591 | import_export_vtable (vars, ctype, 1); |
fc378698 | 2592 | return 1; |
d18c083e MS |
2593 | } |
2594 | ||
fc378698 | 2595 | static int |
d18c083e MS |
2596 | finish_vtable_vardecl (prev, vars) |
2597 | tree prev, vars; | |
2598 | { | |
d18c083e | 2599 | if (write_virtuals >= 0 |
a50f0918 | 2600 | && ! DECL_EXTERNAL (vars) |
7fcdf4c2 | 2601 | && ((TREE_PUBLIC (vars) && ! DECL_WEAK (vars) && ! DECL_ONE_ONLY (vars)) |
eb773359 | 2602 | || CLASSTYPE_EXPLICIT_INSTANTIATION (DECL_CONTEXT (vars)) |
e92cc029 MS |
2603 | || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (vars)) |
2604 | || (hack_decl_function_context (vars) && TREE_USED (vars))) | |
fc378698 | 2605 | && ! TREE_ASM_WRITTEN (vars)) |
d18c083e | 2606 | { |
8d08fdba | 2607 | /* Write it out. */ |
8926095f | 2608 | mark_vtable_entries (vars); |
8d08fdba | 2609 | if (TREE_TYPE (DECL_INITIAL (vars)) == 0) |
b7484fbe | 2610 | store_init_value (vars, DECL_INITIAL (vars)); |
8d08fdba | 2611 | |
faf5394a | 2612 | if (write_symbols == DWARF_DEBUG || write_symbols == DWARF2_DEBUG) |
8d08fdba MS |
2613 | { |
2614 | /* Mark the VAR_DECL node representing the vtable itself as a | |
2615 | "gratuitous" one, thereby forcing dwarfout.c to ignore it. | |
2616 | It is rather important that such things be ignored because | |
2617 | any effort to actually generate DWARF for them will run | |
2618 | into trouble when/if we encounter code like: | |
2619 | ||
2620 | #pragma interface | |
2621 | struct S { virtual void member (); }; | |
2622 | ||
2623 | because the artificial declaration of the vtable itself (as | |
2624 | manufactured by the g++ front end) will say that the vtable | |
2625 | is a static member of `S' but only *after* the debug output | |
2626 | for the definition of `S' has already been output. This causes | |
2627 | grief because the DWARF entry for the definition of the vtable | |
2628 | will try to refer back to an earlier *declaration* of the | |
2629 | vtable as a static member of `S' and there won't be one. | |
2630 | We might be able to arrange to have the "vtable static member" | |
2631 | attached to the member list for `S' before the debug info for | |
2632 | `S' get written (which would solve the problem) but that would | |
2633 | require more intrusive changes to the g++ front end. */ | |
2634 | ||
2635 | DECL_IGNORED_P (vars) = 1; | |
2636 | } | |
8d08fdba | 2637 | |
311862c8 | 2638 | rest_of_decl_compilation (vars, NULL_PTR, 1, 1); |
fc378698 | 2639 | return 1; |
8d08fdba | 2640 | } |
a50f0918 | 2641 | else if (! TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (vars))) |
b7484fbe | 2642 | /* We don't know what to do with this one yet. */ |
fc378698 | 2643 | return 0; |
b7484fbe MS |
2644 | |
2645 | /* We know that PREV must be non-zero here. */ | |
2646 | TREE_CHAIN (prev) = TREE_CHAIN (vars); | |
fc378698 | 2647 | return 0; |
b7484fbe MS |
2648 | } |
2649 | ||
fc378698 | 2650 | static int |
b7484fbe MS |
2651 | prune_vtable_vardecl (prev, vars) |
2652 | tree prev, vars; | |
2653 | { | |
8d08fdba MS |
2654 | /* We know that PREV must be non-zero here. */ |
2655 | TREE_CHAIN (prev) = TREE_CHAIN (vars); | |
fc378698 | 2656 | return 1; |
8d08fdba MS |
2657 | } |
2658 | ||
fc378698 | 2659 | int |
8d08fdba | 2660 | walk_vtables (typedecl_fn, vardecl_fn) |
49c249e1 JM |
2661 | register void (*typedecl_fn) PROTO ((tree, tree)); |
2662 | register int (*vardecl_fn) PROTO ((tree, tree)); | |
8d08fdba MS |
2663 | { |
2664 | tree prev, vars; | |
fc378698 | 2665 | int flag = 0; |
8d08fdba MS |
2666 | |
2667 | for (prev = 0, vars = getdecls (); vars; vars = TREE_CHAIN (vars)) | |
2668 | { | |
2669 | register tree type = TREE_TYPE (vars); | |
2670 | ||
28cbf42c | 2671 | if (TREE_CODE (vars) == VAR_DECL && DECL_VIRTUAL_P (vars)) |
8d08fdba | 2672 | { |
fc378698 MS |
2673 | if (vardecl_fn) |
2674 | flag |= (*vardecl_fn) (prev, vars); | |
28cbf42c MS |
2675 | |
2676 | if (prev && TREE_CHAIN (prev) != vars) | |
2677 | continue; | |
8d08fdba | 2678 | } |
28cbf42c MS |
2679 | else if (TREE_CODE (vars) == TYPE_DECL |
2680 | && type != error_mark_node | |
2681 | && TYPE_LANG_SPECIFIC (type) | |
2682 | && CLASSTYPE_VSIZE (type)) | |
8d08fdba | 2683 | { |
28cbf42c | 2684 | if (typedecl_fn) (*typedecl_fn) (prev, vars); |
8d08fdba | 2685 | } |
28cbf42c MS |
2686 | |
2687 | prev = vars; | |
8d08fdba | 2688 | } |
fc378698 MS |
2689 | |
2690 | return flag; | |
8d08fdba MS |
2691 | } |
2692 | ||
311862c8 GB |
2693 | static void |
2694 | finish_sigtable_vardecl (prev, vars) | |
2695 | tree prev, vars; | |
2696 | { | |
2697 | /* We don't need to mark sigtable entries as addressable here as is done | |
2698 | for vtables. Since sigtables, unlike vtables, are always written out, | |
2699 | that was already done in build_signature_table_constructor. */ | |
2700 | ||
2701 | rest_of_decl_compilation (vars, NULL_PTR, 1, 1); | |
2702 | ||
2703 | /* We know that PREV must be non-zero here. */ | |
2704 | TREE_CHAIN (prev) = TREE_CHAIN (vars); | |
2705 | } | |
2706 | ||
2707 | void | |
2708 | walk_sigtables (typedecl_fn, vardecl_fn) | |
49c249e1 JM |
2709 | register void (*typedecl_fn) PROTO((tree, tree)); |
2710 | register void (*vardecl_fn) PROTO((tree, tree)); | |
311862c8 GB |
2711 | { |
2712 | tree prev, vars; | |
2713 | ||
2714 | for (prev = 0, vars = getdecls (); vars; vars = TREE_CHAIN (vars)) | |
2715 | { | |
2716 | register tree type = TREE_TYPE (vars); | |
2717 | ||
2718 | if (TREE_CODE (vars) == TYPE_DECL | |
2719 | && type != error_mark_node | |
2720 | && IS_SIGNATURE (type)) | |
2721 | { | |
2722 | if (typedecl_fn) (*typedecl_fn) (prev, vars); | |
2723 | } | |
2724 | else if (TREE_CODE (vars) == VAR_DECL | |
2725 | && TREE_TYPE (vars) != error_mark_node | |
2726 | && IS_SIGNATURE (TREE_TYPE (vars))) | |
2727 | { | |
2728 | if (vardecl_fn) (*vardecl_fn) (prev, vars); | |
2729 | } | |
2730 | else | |
2731 | prev = vars; | |
2732 | } | |
2733 | } | |
2734 | ||
00595019 | 2735 | /* Determines the proper settings of TREE_PUBLIC and DECL_EXTERNAL for an |
5566b478 | 2736 | inline function or template instantiation at end-of-file. */ |
00595019 MS |
2737 | |
2738 | void | |
5566b478 | 2739 | import_export_decl (decl) |
00595019 MS |
2740 | tree decl; |
2741 | { | |
db5ae43f | 2742 | if (DECL_INTERFACE_KNOWN (decl)) |
00595019 MS |
2743 | return; |
2744 | ||
db5ae43f | 2745 | if (DECL_TEMPLATE_INSTANTIATION (decl)) |
00595019 | 2746 | { |
5566b478 | 2747 | DECL_NOT_REALLY_EXTERN (decl) = 1; |
e92cc029 MS |
2748 | if (DECL_IMPLICIT_INSTANTIATION (decl) |
2749 | && (flag_implicit_templates || DECL_THIS_INLINE (decl))) | |
a9aedbc2 | 2750 | { |
75650646 MM |
2751 | if (!TREE_PUBLIC (decl)) |
2752 | /* Templates are allowed to have internal linkage. See | |
2753 | [basic.link]. */ | |
2754 | ; | |
2755 | else if (TREE_CODE (decl) == FUNCTION_DECL) | |
d11ad92e | 2756 | comdat_linkage (decl); |
d11ad92e | 2757 | else |
77be6f82 | 2758 | DECL_COMDAT (decl) = 1; |
a9aedbc2 | 2759 | } |
db5ae43f | 2760 | else |
faae18ab | 2761 | DECL_NOT_REALLY_EXTERN (decl) = 0; |
00595019 MS |
2762 | } |
2763 | else if (DECL_FUNCTION_MEMBER_P (decl)) | |
2764 | { | |
2765 | tree ctype = DECL_CLASS_CONTEXT (decl); | |
047f64a3 JM |
2766 | if (CLASSTYPE_INTERFACE_KNOWN (ctype) |
2767 | && (! DECL_ARTIFICIAL (decl) || DECL_VINDEX (decl))) | |
00595019 | 2768 | { |
faae18ab MS |
2769 | DECL_NOT_REALLY_EXTERN (decl) |
2770 | = ! (CLASSTYPE_INTERFACE_ONLY (ctype) | |
2771 | || (DECL_THIS_INLINE (decl) && ! flag_implement_inlines)); | |
00595019 | 2772 | } |
db5ae43f | 2773 | else |
d11ad92e | 2774 | comdat_linkage (decl); |
00595019 | 2775 | } |
6b5fbb55 MS |
2776 | /* tinfo function */ |
2777 | else if (DECL_ARTIFICIAL (decl) && DECL_MUTABLE_P (decl)) | |
2778 | { | |
2779 | tree ctype = TREE_TYPE (DECL_NAME (decl)); | |
d11ad92e MS |
2780 | if (IS_AGGR_TYPE (ctype) && CLASSTYPE_INTERFACE_KNOWN (ctype) |
2781 | && TYPE_VIRTUAL_P (ctype)) | |
6b5fbb55 | 2782 | { |
af9c2d8a MM |
2783 | /* If the type is a cv-qualified variant of a type, then we |
2784 | must emit the tinfo function in this translation unit | |
2785 | since it will not be emitted when the vtable for the type | |
2786 | is output (which is when the unqualified version is | |
2787 | generated). */ | |
6b5fbb55 | 2788 | DECL_NOT_REALLY_EXTERN (decl) |
af9c2d8a MM |
2789 | = TYPE_READONLY (ctype) |
2790 | || TYPE_VOLATILE (ctype) | |
2791 | || ! (CLASSTYPE_INTERFACE_ONLY (ctype) | |
2792 | || (DECL_THIS_INLINE (decl) && ! flag_implement_inlines)); | |
eb773359 JM |
2793 | |
2794 | /* For WIN32 we also want to put explicit instantiations in | |
2795 | linkonce sections. */ | |
b385c841 JM |
2796 | if (CLASSTYPE_EXPLICIT_INSTANTIATION (ctype)) |
2797 | maybe_make_one_only (decl); | |
6b5fbb55 MS |
2798 | } |
2799 | else if (TYPE_BUILT_IN (ctype) && ctype == TYPE_MAIN_VARIANT (ctype)) | |
2800 | DECL_NOT_REALLY_EXTERN (decl) = 0; | |
6b5fbb55 | 2801 | else |
d11ad92e | 2802 | comdat_linkage (decl); |
6b5fbb55 | 2803 | } |
db5ae43f | 2804 | else |
d11ad92e | 2805 | comdat_linkage (decl); |
e8abc66f MS |
2806 | |
2807 | DECL_INTERFACE_KNOWN (decl) = 1; | |
00595019 | 2808 | } |
db5ae43f | 2809 | |
72b7eeff MS |
2810 | tree |
2811 | build_cleanup (decl) | |
2812 | tree decl; | |
2813 | { | |
2814 | tree temp; | |
2815 | tree type = TREE_TYPE (decl); | |
2816 | ||
2817 | if (TREE_CODE (type) == ARRAY_TYPE) | |
2818 | temp = decl; | |
2819 | else | |
2820 | { | |
2821 | mark_addressable (decl); | |
2822 | temp = build1 (ADDR_EXPR, build_pointer_type (type), decl); | |
2823 | } | |
2824 | temp = build_delete (TREE_TYPE (temp), temp, | |
2825 | integer_two_node, | |
2826 | LOOKUP_NORMAL|LOOKUP_NONVIRTUAL|LOOKUP_DESTRUCTOR, 0); | |
2827 | return temp; | |
2828 | } | |
2829 | ||
8d08fdba | 2830 | extern int parse_time, varconst_time; |
5566b478 | 2831 | extern tree pending_templates; |
73aad9b9 | 2832 | extern tree maybe_templates; |
8d08fdba | 2833 | |
824b9a4c | 2834 | static tree |
67d743fe MS |
2835 | get_sentry (base) |
2836 | tree base; | |
2837 | { | |
2838 | tree sname = get_id_2 ("__sn", base); | |
2c73f9f5 | 2839 | /* For struct X foo __attribute__((weak)), there is a counter |
30394414 JM |
2840 | __snfoo. Since base is already an assembler name, sname should |
2841 | be globally unique */ | |
67d743fe MS |
2842 | tree sentry = IDENTIFIER_GLOBAL_VALUE (sname); |
2843 | if (! sentry) | |
2844 | { | |
88537ff2 JM |
2845 | push_obstacks_nochange (); |
2846 | end_temporary_allocation (); | |
67d743fe MS |
2847 | sentry = build_decl (VAR_DECL, sname, integer_type_node); |
2848 | TREE_PUBLIC (sentry) = 1; | |
2849 | DECL_ARTIFICIAL (sentry) = 1; | |
2850 | TREE_STATIC (sentry) = 1; | |
2851 | TREE_USED (sentry) = 1; | |
2852 | DECL_COMMON (sentry) = 1; | |
2853 | pushdecl_top_level (sentry); | |
2854 | cp_finish_decl (sentry, NULL_TREE, NULL_TREE, 0, 0); | |
2855 | pop_obstacks (); | |
2856 | } | |
2857 | return sentry; | |
2858 | } | |
2859 | ||
961ec1a5 JM |
2860 | /* Start the process of running a particular set of global constructors |
2861 | or destructors. Subroutine of do_[cd]tors. */ | |
2862 | ||
2863 | static void | |
2864 | start_objects (method_type) | |
2865 | int method_type; | |
2866 | { | |
2867 | tree fnname; | |
2868 | ||
2869 | /* Make ctor or dtor function. METHOD_TYPE may be 'I' or 'D'. */ | |
2870 | ||
2871 | fnname = get_file_function_name (method_type); | |
2872 | ||
2873 | start_function (void_list_node, | |
2874 | make_call_declarator (fnname, void_list_node, NULL_TREE, | |
2875 | NULL_TREE), | |
2876 | NULL_TREE, 0); | |
2877 | ||
2878 | store_parm_decls (); | |
2879 | pushlevel (0); | |
2880 | clear_last_expr (); | |
2881 | push_momentary (); | |
2882 | expand_start_bindings (0); | |
2883 | } | |
2884 | ||
2885 | /* Finish the process of running a particular set of global constructors | |
2886 | or destructors. Subroutine of do_[cd]tors. */ | |
2887 | ||
2888 | static void | |
2889 | finish_objects (method_type) | |
2890 | int method_type; | |
2891 | { | |
2892 | char *fnname; | |
2893 | ||
2894 | tree list = (method_type == 'I' ? static_ctors : static_dtors); | |
2895 | ||
2896 | if (! current_function_decl && list) | |
2897 | start_objects (method_type); | |
2898 | ||
2899 | for (; list; list = TREE_CHAIN (list)) | |
2900 | expand_expr_stmt (build_function_call (TREE_VALUE (list), NULL_TREE)); | |
2901 | ||
2902 | if (! current_function_decl) | |
2903 | return; | |
2904 | ||
2905 | fnname = XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0); | |
2906 | ||
2907 | /* Finish up. */ | |
2908 | expand_end_bindings (getdecls (), 1, 0); | |
2909 | poplevel (1, 0, 0); | |
2910 | pop_momentary (); | |
2911 | finish_function (lineno, 0, 0); | |
2912 | ||
2913 | if (method_type == 'I') | |
2914 | assemble_constructor (fnname); | |
2915 | else | |
2916 | assemble_destructor (fnname); | |
2917 | } | |
2918 | ||
2919 | /* Generate a function to run a set of global destructors. Subroutine of | |
2920 | finish_file. */ | |
2921 | ||
2922 | static void | |
2923 | do_dtors () | |
2924 | { | |
2925 | tree vars = static_aggregates; | |
2926 | ||
2927 | for (; vars; vars = TREE_CHAIN (vars)) | |
2928 | { | |
2929 | tree decl = TREE_VALUE (vars); | |
2930 | tree type = TREE_TYPE (decl); | |
2931 | tree temp; | |
2932 | ||
2933 | if (TYPE_NEEDS_DESTRUCTOR (type) && ! TREE_STATIC (vars) | |
2934 | && ! DECL_EXTERNAL (decl)) | |
2935 | { | |
2936 | int protect = (TREE_PUBLIC (decl) && (DECL_COMMON (decl) | |
2937 | || DECL_ONE_ONLY (decl) | |
2938 | || DECL_WEAK (decl))); | |
2939 | ||
2940 | if (! current_function_decl) | |
2941 | start_objects ('D'); | |
2942 | ||
2943 | temp = build_cleanup (decl); | |
2944 | ||
2945 | if (protect) | |
2946 | { | |
2947 | tree sentry = get_sentry (DECL_ASSEMBLER_NAME (decl)); | |
2948 | sentry = build_unary_op (PREDECREMENT_EXPR, sentry, 0); | |
2949 | sentry = build_binary_op (EQ_EXPR, sentry, integer_zero_node, 1); | |
2950 | expand_start_cond (sentry, 0); | |
2951 | } | |
2952 | ||
2953 | expand_expr_stmt (temp); | |
2954 | ||
2955 | if (protect) | |
2956 | expand_end_cond (); | |
2957 | } | |
2958 | } | |
2959 | ||
2960 | finish_objects ('D'); | |
2961 | } | |
2962 | ||
2963 | /* Generate a function to run a set of global constructors. Subroutine of | |
2964 | finish_file. */ | |
2965 | ||
2966 | static void | |
2967 | do_ctors () | |
2968 | { | |
2969 | tree vars = static_aggregates; | |
2970 | ||
2971 | /* Reverse the list so it's in the right order for ctors. */ | |
2972 | vars = nreverse (vars); | |
2973 | ||
2974 | for (; vars; vars = TREE_CHAIN (vars)) | |
2975 | { | |
2976 | tree decl = TREE_VALUE (vars); | |
2977 | tree init = TREE_PURPOSE (vars); | |
2978 | ||
2979 | /* If this was a static attribute within some function's scope, | |
2980 | then don't initialize it here. Also, don't bother | |
2981 | with initializers that contain errors. */ | |
2982 | if (TREE_STATIC (vars) | |
2983 | || DECL_EXTERNAL (decl) | |
2984 | || (init && TREE_CODE (init) == TREE_LIST | |
2985 | && value_member (error_mark_node, init))) | |
2986 | continue; | |
2987 | ||
2988 | if (TREE_CODE (decl) == VAR_DECL) | |
2989 | { | |
2990 | int protect = (TREE_PUBLIC (decl) && (DECL_COMMON (decl) | |
2991 | || DECL_ONE_ONLY (decl) | |
2992 | || DECL_WEAK (decl))); | |
2993 | ||
2994 | if (! current_function_decl) | |
2995 | start_objects ('I'); | |
2996 | ||
2997 | /* Set these global variables so that GDB at least puts | |
2998 | us near the declaration which required the initialization. */ | |
2999 | input_filename = DECL_SOURCE_FILE (decl); | |
3000 | lineno = DECL_SOURCE_LINE (decl); | |
3001 | emit_note (input_filename, lineno); | |
3002 | ||
3003 | /* 9.5p5: The initializer of a static member of a class has | |
3004 | the same access rights as a member function. */ | |
3005 | if (member_p (decl)) | |
3006 | { | |
3007 | DECL_CLASS_CONTEXT (current_function_decl) | |
3008 | = DECL_CONTEXT (decl); | |
3009 | DECL_STATIC_FUNCTION_P (current_function_decl) = 1; | |
3010 | } | |
3011 | ||
3012 | if (protect) | |
3013 | { | |
3014 | tree sentry = get_sentry (DECL_ASSEMBLER_NAME (decl)); | |
3015 | sentry = build_unary_op (PREINCREMENT_EXPR, sentry, 0); | |
3016 | sentry = build_binary_op | |
3017 | (EQ_EXPR, sentry, integer_one_node, 1); | |
3018 | expand_start_cond (sentry, 0); | |
3019 | } | |
3020 | ||
3021 | expand_start_target_temps (); | |
3022 | ||
3023 | if (IS_AGGR_TYPE (TREE_TYPE (decl)) | |
3024 | || TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE) | |
3025 | expand_aggr_init (decl, init, 0, 0); | |
3026 | else if (TREE_CODE (init) == TREE_VEC) | |
3027 | { | |
3028 | expand_expr (expand_vec_init (decl, TREE_VEC_ELT (init, 0), | |
3029 | TREE_VEC_ELT (init, 1), | |
3030 | TREE_VEC_ELT (init, 2), 0), | |
3031 | const0_rtx, VOIDmode, EXPAND_NORMAL); | |
3032 | } | |
3033 | else | |
3034 | expand_assignment (decl, init, 0, 0); | |
3035 | ||
3036 | /* The expression might have involved increments and | |
3037 | decrements. */ | |
3038 | emit_queue (); | |
3039 | ||
3040 | /* Cleanup any temporaries needed for the initial value. */ | |
3041 | expand_end_target_temps (); | |
3042 | ||
3043 | if (protect) | |
3044 | expand_end_cond (); | |
3045 | ||
3046 | DECL_CLASS_CONTEXT (current_function_decl) = NULL_TREE; | |
3047 | DECL_STATIC_FUNCTION_P (current_function_decl) = 0; | |
3048 | } | |
3049 | else if (decl == error_mark_node) | |
3050 | /* OK */; | |
3051 | else | |
3052 | my_friendly_abort (22); | |
3053 | } | |
3054 | ||
3055 | finish_objects ('I'); | |
3056 | } | |
3057 | ||
8d08fdba MS |
3058 | /* This routine is called from the last rule in yyparse (). |
3059 | Its job is to create all the code needed to initialize and | |
3060 | destroy the global aggregates. We do the destruction | |
3061 | first, since that way we only need to reverse the decls once. */ | |
3062 | ||
3063 | void | |
3064 | finish_file () | |
3065 | { | |
3066 | extern int lineno; | |
3067 | int start_time, this_time; | |
3068 | ||
3069 | tree fnname; | |
44a8d0b3 | 3070 | tree vars; |
8d08fdba | 3071 | int needs_cleaning = 0, needs_messing_up = 0; |
8d2733ca | 3072 | |
5566b478 MS |
3073 | at_eof = 1; |
3074 | ||
8d08fdba MS |
3075 | /* Bad parse errors. Just forget about it. */ |
3076 | if (! global_bindings_p () || current_class_type) | |
3077 | return; | |
3078 | ||
3079 | start_time = get_run_time (); | |
3080 | ||
8d08fdba MS |
3081 | /* Otherwise, GDB can get confused, because in only knows |
3082 | about source for LINENO-1 lines. */ | |
3083 | lineno -= 1; | |
3084 | ||
d18c083e MS |
3085 | interface_unknown = 1; |
3086 | interface_only = 0; | |
3087 | ||
909e536a MS |
3088 | for (fnname = pending_templates; fnname; fnname = TREE_CHAIN (fnname)) |
3089 | { | |
1139b3d8 | 3090 | tree srcloc = TREE_PURPOSE (fnname); |
909e536a | 3091 | tree decl = TREE_VALUE (fnname); |
1139b3d8 JM |
3092 | |
3093 | input_filename = SRCLOC_FILE (srcloc); | |
3094 | lineno = SRCLOC_LINE (srcloc); | |
3095 | ||
e92cc029 MS |
3096 | if (TREE_CODE_CLASS (TREE_CODE (decl)) == 't') |
3097 | { | |
3098 | instantiate_class_template (decl); | |
3099 | if (CLASSTYPE_TEMPLATE_INSTANTIATION (decl)) | |
3100 | for (vars = TYPE_METHODS (decl); vars; vars = TREE_CHAIN (vars)) | |
9a3b49ac MS |
3101 | if (! DECL_ARTIFICIAL (vars)) |
3102 | instantiate_decl (vars); | |
e92cc029 MS |
3103 | } |
3104 | else | |
3105 | instantiate_decl (decl); | |
909e536a MS |
3106 | } |
3107 | ||
73aad9b9 JM |
3108 | for (fnname = maybe_templates; fnname; fnname = TREE_CHAIN (fnname)) |
3109 | { | |
98c1c668 | 3110 | tree args, fn, decl = TREE_VALUE (fnname); |
73aad9b9 JM |
3111 | |
3112 | if (DECL_INITIAL (decl)) | |
3113 | continue; | |
3114 | ||
3115 | fn = TREE_PURPOSE (fnname); | |
e1467ff2 | 3116 | args = get_bindings (fn, decl, NULL_TREE); |
73aad9b9 | 3117 | fn = instantiate_template (fn, args); |
73aad9b9 JM |
3118 | instantiate_decl (fn); |
3119 | } | |
3120 | ||
2c73f9f5 ML |
3121 | cat_namespace_levels(); |
3122 | ||
909e536a MS |
3123 | /* Push into C language context, because that's all |
3124 | we'll need here. */ | |
3125 | push_lang_context (lang_name_c); | |
3126 | ||
28cbf42c MS |
3127 | #if 1 |
3128 | /* The reason for pushing garbage onto the global_binding_level is to | |
3129 | ensure that we can slice out _DECLs which pertain to virtual function | |
3130 | tables. If the last thing pushed onto the global_binding_level was a | |
3131 | virtual function table, then slicing it out would slice away all the | |
3132 | decls (i.e., we lose the head of the chain). | |
3133 | ||
3134 | There are several ways of getting the same effect, from changing the | |
3135 | way that iterators over the chain treat the elements that pertain to | |
3136 | virtual function tables, moving the implementation of this code to | |
3137 | decl.c (where we can manipulate global_binding_level directly), | |
3138 | popping the garbage after pushing it and slicing away the vtable | |
e92cc029 | 3139 | stuff, or just leaving it alone. */ |
28cbf42c MS |
3140 | |
3141 | /* Make last thing in global scope not be a virtual function table. */ | |
3142 | #if 0 /* not yet, should get fixed properly later */ | |
3143 | vars = make_type_decl (get_identifier (" @%$#@!"), integer_type_node); | |
3144 | #else | |
3145 | vars = build_decl (TYPE_DECL, get_identifier (" @%$#@!"), integer_type_node); | |
3146 | #endif | |
3147 | DECL_IGNORED_P (vars) = 1; | |
3148 | SET_DECL_ARTIFICIAL (vars); | |
3149 | pushdecl (vars); | |
3150 | #endif | |
3151 | ||
d18c083e | 3152 | /* Walk to mark the inline functions we need, then output them so |
e92cc029 | 3153 | that we can pick up any other tdecls that those routines need. */ |
49c249e1 JM |
3154 | walk_vtables ((void (*) PROTO ((tree, tree))) 0, |
3155 | finish_prevtable_vardecl); | |
d18c083e | 3156 | |
c11b6f21 MS |
3157 | for (vars = static_aggregates; vars; vars = TREE_CHAIN (vars)) |
3158 | if (! TREE_ASM_WRITTEN (TREE_VALUE (vars))) | |
3159 | rest_of_decl_compilation (TREE_VALUE (vars), 0, 1, 1); | |
44a8d0b3 MS |
3160 | vars = static_aggregates; |
3161 | ||
02531345 | 3162 | if (static_ctors || vars) |
44a8d0b3 | 3163 | needs_messing_up = 1; |
961ec1a5 | 3164 | if (static_dtors || vars) |
44a8d0b3 MS |
3165 | needs_cleaning = 1; |
3166 | ||
961ec1a5 JM |
3167 | /* The aggregates are listed in reverse declaration order, for cleaning. */ |
3168 | if (needs_cleaning) | |
44a8d0b3 | 3169 | { |
961ec1a5 | 3170 | do_dtors (); |
44a8d0b3 MS |
3171 | } |
3172 | ||
961ec1a5 | 3173 | /* do_ctors will reverse the lists for messing up. */ |
e1cd6e56 | 3174 | if (needs_messing_up) |
8d08fdba | 3175 | { |
961ec1a5 | 3176 | do_ctors (); |
8d08fdba MS |
3177 | } |
3178 | ||
faae18ab MS |
3179 | permanent_allocation (1); |
3180 | ||
8d08fdba MS |
3181 | /* Done with C language context needs. */ |
3182 | pop_lang_context (); | |
3183 | ||
3184 | /* Now write out any static class variables (which may have since | |
3185 | learned how to be initialized). */ | |
3186 | while (pending_statics) | |
3187 | { | |
3188 | tree decl = TREE_VALUE (pending_statics); | |
5566b478 | 3189 | |
d2e5ee5c MS |
3190 | /* Output DWARF debug information. */ |
3191 | #ifdef DWARF_DEBUGGING_INFO | |
3192 | if (write_symbols == DWARF_DEBUG) | |
3193 | dwarfout_file_scope_decl (decl, 1); | |
3194 | #endif | |
3195 | #ifdef DWARF2_DEBUGGING_INFO | |
3196 | if (write_symbols == DWARF2_DEBUG) | |
3197 | dwarf2out_decl (decl); | |
3198 | #endif | |
3199 | ||
3200 | DECL_DEFER_OUTPUT (decl) = 0; | |
3201 | rest_of_decl_compilation | |
3202 | (decl, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)), 1, 1); | |
3203 | ||
8d08fdba MS |
3204 | pending_statics = TREE_CHAIN (pending_statics); |
3205 | } | |
3206 | ||
3207 | this_time = get_run_time (); | |
3208 | parse_time -= this_time - start_time; | |
3209 | varconst_time += this_time - start_time; | |
3210 | ||
8d08fdba MS |
3211 | start_time = get_run_time (); |
3212 | ||
5b605f68 | 3213 | if (flag_handle_signatures) |
49c249e1 JM |
3214 | walk_sigtables ((void (*) PROTO ((tree, tree))) 0, |
3215 | finish_sigtable_vardecl); | |
8926095f | 3216 | |
28cbf42c | 3217 | for (fnname = saved_inlines; fnname; fnname = TREE_CHAIN (fnname)) |
fd378c9d JM |
3218 | { |
3219 | tree decl = TREE_VALUE (fnname); | |
5566b478 | 3220 | import_export_decl (decl); |
fd378c9d | 3221 | } |
28cbf42c | 3222 | |
db5ae43f MS |
3223 | /* Now write out inline functions which had their addresses taken and |
3224 | which were not declared virtual and which were not declared `extern | |
3225 | inline'. */ | |
9a0e77ba | 3226 | { |
db5ae43f | 3227 | int reconsider = 1; /* More may be referenced; check again */ |
9a0e77ba | 3228 | |
db5ae43f | 3229 | while (reconsider) |
9a0e77ba | 3230 | { |
21451173 | 3231 | tree *p = &saved_inlines; |
db5ae43f MS |
3232 | reconsider = 0; |
3233 | ||
e76a2646 MS |
3234 | /* We need to do this each time so that newly completed template |
3235 | types don't wind up at the front of the list. Sigh. */ | |
3236 | vars = build_decl (TYPE_DECL, make_anon_name (), integer_type_node); | |
3237 | DECL_IGNORED_P (vars) = 1; | |
3238 | SET_DECL_ARTIFICIAL (vars); | |
3239 | pushdecl (vars); | |
3240 | ||
49c249e1 JM |
3241 | reconsider |= walk_vtables ((void (*) PROTO((tree, tree))) 0, |
3242 | finish_vtable_vardecl); | |
b7484fbe | 3243 | |
21451173 | 3244 | while (*p) |
9a0e77ba | 3245 | { |
21451173 | 3246 | tree decl = TREE_VALUE (*p); |
db5ae43f | 3247 | |
21451173 | 3248 | if (DECL_ARTIFICIAL (decl) && ! DECL_INITIAL (decl) |
6b5fbb55 MS |
3249 | && TREE_USED (decl) |
3250 | && (! DECL_REALLY_EXTERN (decl) || DECL_INLINE (decl))) | |
e8abc66f | 3251 | { |
6b5fbb55 MS |
3252 | if (DECL_MUTABLE_P (decl)) |
3253 | synthesize_tinfo_fn (decl); | |
3254 | else | |
3255 | synthesize_method (decl); | |
21451173 | 3256 | reconsider = 1; |
e8abc66f MS |
3257 | } |
3258 | ||
a50f0918 | 3259 | /* Catch new template instantiations. */ |
6b5fbb55 | 3260 | if (decl != TREE_VALUE (*p)) |
a50f0918 | 3261 | continue; |
b7484fbe | 3262 | |
a50f0918 MS |
3263 | if (TREE_ASM_WRITTEN (decl) |
3264 | || (DECL_SAVED_INSNS (decl) == 0 && ! DECL_ARTIFICIAL (decl))) | |
21451173 | 3265 | *p = TREE_CHAIN (*p); |
a50f0918 MS |
3266 | else if (DECL_INITIAL (decl) == 0) |
3267 | p = &TREE_CHAIN (*p); | |
ab23f787 | 3268 | else if ((TREE_PUBLIC (decl) && ! DECL_COMDAT (decl)) |
21451173 MS |
3269 | || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)) |
3270 | || flag_keep_inline_functions) | |
3271 | { | |
faae18ab | 3272 | if (DECL_NOT_REALLY_EXTERN (decl)) |
9a0e77ba | 3273 | { |
faae18ab | 3274 | DECL_EXTERNAL (decl) = 0; |
db5ae43f | 3275 | reconsider = 1; |
bd871063 JM |
3276 | /* We can't inline this function after it's been |
3277 | emitted. We want a variant of | |
3278 | output_inline_function that doesn't prevent | |
3279 | subsequent integration... */ | |
3280 | DECL_INLINE (decl) = 0; | |
db5ae43f MS |
3281 | output_inline_function (decl); |
3282 | permanent_allocation (1); | |
9a0e77ba | 3283 | } |
db5ae43f | 3284 | |
21451173 | 3285 | *p = TREE_CHAIN (*p); |
9a0e77ba | 3286 | } |
21451173 MS |
3287 | else |
3288 | p = &TREE_CHAIN (*p); | |
9a0e77ba JM |
3289 | } |
3290 | } | |
9c0d0367 MM |
3291 | |
3292 | /* It's possible that some of the remaining inlines will still be | |
3293 | needed. For example, a static inline whose address is used in | |
3294 | the initializer for a file-scope static variable will be | |
3295 | needed. Code in compile_file will handle this, but we mustn't | |
3296 | pretend that there are no definitions for the inlines, or it | |
3297 | won't be able to. | |
3298 | ||
3299 | FIXME: This won't catch member functions. We should really | |
3300 | unify this stuff with the compile_file stuff. */ | |
3301 | for (vars = saved_inlines; vars != NULL_TREE; vars = TREE_CHAIN (vars)) | |
3302 | { | |
3303 | tree decl = TREE_VALUE (vars); | |
3304 | ||
3305 | if (DECL_NOT_REALLY_EXTERN (decl) | |
3306 | && !DECL_COMDAT (decl) | |
3307 | && DECL_INITIAL (decl) != NULL_TREE) | |
3308 | DECL_EXTERNAL (decl) = 0; | |
3309 | } | |
9a0e77ba | 3310 | } |
8d08fdba | 3311 | |
28cbf42c MS |
3312 | /* Now delete from the chain of variables all virtual function tables. |
3313 | We output them all ourselves, because each will be treated specially. */ | |
3314 | ||
49c249e1 JM |
3315 | walk_vtables ((void (*) PROTO((tree, tree))) 0, |
3316 | prune_vtable_vardecl); | |
b7484fbe | 3317 | |
8d08fdba MS |
3318 | if (write_virtuals == 2) |
3319 | { | |
3320 | /* Now complain about an virtual function tables promised | |
3321 | but not delivered. */ | |
3322 | while (pending_vtables) | |
3323 | { | |
3324 | if (TREE_PURPOSE (pending_vtables) == NULL_TREE) | |
3325 | error ("virtual function table for `%s' not defined", | |
3326 | IDENTIFIER_POINTER (TREE_VALUE (pending_vtables))); | |
3327 | pending_vtables = TREE_CHAIN (pending_vtables); | |
3328 | } | |
3329 | } | |
3330 | ||
faae18ab MS |
3331 | finish_repo (); |
3332 | ||
8d08fdba MS |
3333 | this_time = get_run_time (); |
3334 | parse_time -= this_time - start_time; | |
3335 | varconst_time += this_time - start_time; | |
3336 | ||
3337 | if (flag_detailed_statistics) | |
27bb8339 JM |
3338 | { |
3339 | dump_tree_statistics (); | |
3340 | dump_time_statistics (); | |
3341 | } | |
8d08fdba | 3342 | } |
51c184be MS |
3343 | |
3344 | /* This is something of the form 'A()()()()()+1' that has turned out to be an | |
3345 | expr. Since it was parsed like a type, we need to wade through and fix | |
3346 | that. Unfortunately, since operator() is left-associative, we can't use | |
3347 | tail recursion. In the above example, TYPE is `A', and DECL is | |
3348 | `()()()()()'. | |
3349 | ||
3350 | Maybe this shouldn't be recursive, but how often will it actually be | |
3351 | used? (jason) */ | |
e92cc029 | 3352 | |
51c184be MS |
3353 | tree |
3354 | reparse_absdcl_as_expr (type, decl) | |
3355 | tree type, decl; | |
3356 | { | |
3357 | /* do build_functional_cast (type, NULL_TREE) at bottom */ | |
3358 | if (TREE_OPERAND (decl, 0) == NULL_TREE) | |
3359 | return build_functional_cast (type, NULL_TREE); | |
3360 | ||
3361 | /* recurse */ | |
3362 | decl = reparse_decl_as_expr (type, TREE_OPERAND (decl, 0)); | |
3363 | ||
4ac14744 | 3364 | decl = build_x_function_call (decl, NULL_TREE, current_class_ref); |
51c184be MS |
3365 | |
3366 | if (TREE_CODE (decl) == CALL_EXPR && TREE_TYPE (decl) != void_type_node) | |
3367 | decl = require_complete_type (decl); | |
3368 | ||
3369 | return decl; | |
3370 | } | |
3371 | ||
3372 | /* This is something of the form `int ((int)(int)(int)1)' that has turned | |
3373 | out to be an expr. Since it was parsed like a type, we need to wade | |
3374 | through and fix that. Since casts are right-associative, we are | |
3375 | reversing the order, so we don't have to recurse. | |
3376 | ||
3377 | In the above example, DECL is the `(int)(int)(int)', and EXPR is the | |
3378 | `1'. */ | |
e92cc029 | 3379 | |
51c184be MS |
3380 | tree |
3381 | reparse_absdcl_as_casts (decl, expr) | |
3382 | tree decl, expr; | |
3383 | { | |
3384 | tree type; | |
3385 | ||
4ac14744 MS |
3386 | if (TREE_CODE (expr) == CONSTRUCTOR |
3387 | && TREE_TYPE (expr) == 0) | |
51c184be MS |
3388 | { |
3389 | type = groktypename (TREE_VALUE (TREE_OPERAND (decl, 1))); | |
3390 | decl = TREE_OPERAND (decl, 0); | |
3391 | ||
3392 | if (IS_SIGNATURE (type)) | |
3393 | { | |
3394 | error ("cast specifies signature type"); | |
3395 | return error_mark_node; | |
3396 | } | |
3397 | ||
3398 | expr = digest_init (type, expr, (tree *) 0); | |
3399 | if (TREE_CODE (type) == ARRAY_TYPE && TYPE_SIZE (type) == 0) | |
3400 | { | |
3401 | int failure = complete_array_type (type, expr, 1); | |
3402 | if (failure) | |
3403 | my_friendly_abort (78); | |
3404 | } | |
3405 | } | |
3406 | ||
3407 | while (decl) | |
3408 | { | |
3409 | type = groktypename (TREE_VALUE (TREE_OPERAND (decl, 1))); | |
3410 | decl = TREE_OPERAND (decl, 0); | |
faf5394a | 3411 | expr = build_c_cast (type, expr); |
51c184be MS |
3412 | } |
3413 | ||
0c4b14c4 JM |
3414 | if (warn_old_style_cast) |
3415 | warning ("use of old-style cast"); | |
3416 | ||
51c184be MS |
3417 | return expr; |
3418 | } | |
3419 | ||
e92cc029 | 3420 | /* Given plain tree nodes for an expression, build up the full semantics. */ |
5566b478 MS |
3421 | |
3422 | tree | |
3423 | build_expr_from_tree (t) | |
3424 | tree t; | |
51c184be | 3425 | { |
5566b478 MS |
3426 | if (t == NULL_TREE || t == error_mark_node) |
3427 | return t; | |
3428 | ||
3429 | switch (TREE_CODE (t)) | |
51c184be MS |
3430 | { |
3431 | case IDENTIFIER_NODE: | |
5566b478 MS |
3432 | return do_identifier (t, 0); |
3433 | ||
3434 | case LOOKUP_EXPR: | |
3435 | if (LOOKUP_EXPR_GLOBAL (t)) | |
3436 | return do_scoped_id (TREE_OPERAND (t, 0), 0); | |
3437 | else | |
3438 | return do_identifier (TREE_OPERAND (t, 0), 0); | |
3439 | ||
386b8a85 | 3440 | case TEMPLATE_ID_EXPR: |
00d3396f JM |
3441 | return (lookup_template_function |
3442 | (build_expr_from_tree (TREE_OPERAND (t, 0)), | |
3443 | build_expr_from_tree (TREE_OPERAND (t, 1)))); | |
386b8a85 | 3444 | |
51c184be MS |
3445 | case INDIRECT_REF: |
3446 | return build_x_indirect_ref | |
5566b478 MS |
3447 | (build_expr_from_tree (TREE_OPERAND (t, 0)), "unary *"); |
3448 | ||
3449 | case CAST_EXPR: | |
3450 | return build_functional_cast | |
3451 | (TREE_TYPE (t), build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3452 | ||
3453 | case REINTERPRET_CAST_EXPR: | |
3454 | return build_reinterpret_cast | |
3455 | (TREE_TYPE (t), build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3456 | ||
e92cc029 MS |
3457 | case CONST_CAST_EXPR: |
3458 | return build_const_cast | |
3459 | (TREE_TYPE (t), build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3460 | ||
3461 | case DYNAMIC_CAST_EXPR: | |
3462 | return build_dynamic_cast | |
3463 | (TREE_TYPE (t), build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3464 | ||
3465 | case STATIC_CAST_EXPR: | |
3466 | return build_static_cast | |
3467 | (TREE_TYPE (t), build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3468 | ||
5566b478 MS |
3469 | case PREDECREMENT_EXPR: |
3470 | case PREINCREMENT_EXPR: | |
3471 | case POSTDECREMENT_EXPR: | |
3472 | case POSTINCREMENT_EXPR: | |
3473 | case NEGATE_EXPR: | |
51c184be | 3474 | case BIT_NOT_EXPR: |
5566b478 MS |
3475 | case ABS_EXPR: |
3476 | case TRUTH_NOT_EXPR: | |
3477 | case ADDR_EXPR: | |
3478 | case CONVERT_EXPR: /* Unary + */ | |
fc378698 MS |
3479 | if (TREE_TYPE (t)) |
3480 | return t; | |
5566b478 MS |
3481 | return build_x_unary_op (TREE_CODE (t), |
3482 | build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3483 | ||
3484 | case PLUS_EXPR: | |
3485 | case MINUS_EXPR: | |
3486 | case MULT_EXPR: | |
3487 | case TRUNC_DIV_EXPR: | |
3488 | case CEIL_DIV_EXPR: | |
3489 | case FLOOR_DIV_EXPR: | |
3490 | case ROUND_DIV_EXPR: | |
3491 | case EXACT_DIV_EXPR: | |
3492 | case BIT_AND_EXPR: | |
3493 | case BIT_ANDTC_EXPR: | |
3494 | case BIT_IOR_EXPR: | |
3495 | case BIT_XOR_EXPR: | |
3496 | case TRUNC_MOD_EXPR: | |
3497 | case FLOOR_MOD_EXPR: | |
3498 | case TRUTH_ANDIF_EXPR: | |
3499 | case TRUTH_ORIF_EXPR: | |
3500 | case TRUTH_AND_EXPR: | |
3501 | case TRUTH_OR_EXPR: | |
3502 | case RSHIFT_EXPR: | |
3503 | case LSHIFT_EXPR: | |
3504 | case RROTATE_EXPR: | |
3505 | case LROTATE_EXPR: | |
3506 | case EQ_EXPR: | |
3507 | case NE_EXPR: | |
3508 | case MAX_EXPR: | |
3509 | case MIN_EXPR: | |
3510 | case LE_EXPR: | |
3511 | case GE_EXPR: | |
3512 | case LT_EXPR: | |
3513 | case GT_EXPR: | |
3514 | case MEMBER_REF: | |
3515 | return build_x_binary_op | |
3516 | (TREE_CODE (t), | |
3517 | build_expr_from_tree (TREE_OPERAND (t, 0)), | |
3518 | build_expr_from_tree (TREE_OPERAND (t, 1))); | |
3519 | ||
3520 | case DOTSTAR_EXPR: | |
3521 | return build_m_component_ref | |
3522 | (build_expr_from_tree (TREE_OPERAND (t, 0)), | |
3523 | build_expr_from_tree (TREE_OPERAND (t, 1))); | |
3524 | ||
a28e3c7f | 3525 | case SCOPE_REF: |
5566b478 MS |
3526 | return build_offset_ref (TREE_OPERAND (t, 0), TREE_OPERAND (t, 1)); |
3527 | ||
a28e3c7f | 3528 | case ARRAY_REF: |
5566b478 MS |
3529 | if (TREE_OPERAND (t, 0) == NULL_TREE) |
3530 | /* new-type-id */ | |
3531 | return build_parse_node (ARRAY_REF, NULL_TREE, | |
3532 | build_expr_from_tree (TREE_OPERAND (t, 1))); | |
3533 | return grok_array_decl (build_expr_from_tree (TREE_OPERAND (t, 0)), | |
3534 | build_expr_from_tree (TREE_OPERAND (t, 1))); | |
3535 | ||
3536 | case SIZEOF_EXPR: | |
abff8e06 | 3537 | case ALIGNOF_EXPR: |
5566b478 MS |
3538 | { |
3539 | tree r = build_expr_from_tree (TREE_OPERAND (t, 0)); | |
3540 | if (TREE_CODE_CLASS (TREE_CODE (r)) != 't') | |
3541 | r = TREE_TYPE (r); | |
abff8e06 | 3542 | return TREE_CODE (t) == SIZEOF_EXPR ? c_sizeof (r) : c_alignof (r); |
5566b478 MS |
3543 | } |
3544 | ||
3545 | case MODOP_EXPR: | |
3546 | return build_x_modify_expr | |
3547 | (build_expr_from_tree (TREE_OPERAND (t, 0)), | |
3548 | TREE_CODE (TREE_OPERAND (t, 1)), | |
3549 | build_expr_from_tree (TREE_OPERAND (t, 2))); | |
3550 | ||
3551 | case ARROW_EXPR: | |
3552 | return build_x_arrow | |
3553 | (build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3554 | ||
3555 | case NEW_EXPR: | |
3556 | return build_new | |
3557 | (build_expr_from_tree (TREE_OPERAND (t, 0)), | |
3558 | build_expr_from_tree (TREE_OPERAND (t, 1)), | |
3559 | build_expr_from_tree (TREE_OPERAND (t, 2)), | |
3560 | NEW_EXPR_USE_GLOBAL (t)); | |
3561 | ||
3562 | case DELETE_EXPR: | |
3563 | return delete_sanity | |
3564 | (build_expr_from_tree (TREE_OPERAND (t, 0)), | |
3565 | build_expr_from_tree (TREE_OPERAND (t, 1)), | |
3566 | DELETE_EXPR_USE_VEC (t), DELETE_EXPR_USE_GLOBAL (t)); | |
3567 | ||
3568 | case COMPOUND_EXPR: | |
3569 | if (TREE_OPERAND (t, 1) == NULL_TREE) | |
3570 | return build_x_compound_expr | |
3571 | (build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3572 | else | |
3573 | my_friendly_abort (42); | |
3574 | ||
3575 | case METHOD_CALL_EXPR: | |
3576 | if (TREE_CODE (TREE_OPERAND (t, 0)) == SCOPE_REF) | |
3577 | { | |
3578 | tree ref = TREE_OPERAND (t, 0); | |
3579 | return build_scoped_method_call | |
3580 | (build_expr_from_tree (TREE_OPERAND (t, 1)), | |
3581 | build_expr_from_tree (TREE_OPERAND (ref, 0)), | |
3582 | TREE_OPERAND (ref, 1), | |
3583 | build_expr_from_tree (TREE_OPERAND (t, 2))); | |
3584 | } | |
3585 | return build_method_call | |
3586 | (build_expr_from_tree (TREE_OPERAND (t, 1)), | |
3587 | TREE_OPERAND (t, 0), | |
3588 | build_expr_from_tree (TREE_OPERAND (t, 2)), | |
3589 | NULL_TREE, LOOKUP_NORMAL); | |
3590 | ||
3591 | case CALL_EXPR: | |
3592 | if (TREE_CODE (TREE_OPERAND (t, 0)) == SCOPE_REF) | |
3593 | { | |
3594 | tree ref = TREE_OPERAND (t, 0); | |
3595 | return build_member_call | |
3596 | (build_expr_from_tree (TREE_OPERAND (ref, 0)), | |
3597 | TREE_OPERAND (ref, 1), | |
3598 | build_expr_from_tree (TREE_OPERAND (t, 1))); | |
3599 | } | |
3600 | else | |
3601 | { | |
3602 | tree name = TREE_OPERAND (t, 0); | |
00d3396f JM |
3603 | if (TREE_CODE (name) == TEMPLATE_ID_EXPR |
3604 | || ! really_overloaded_fn (name)) | |
5566b478 MS |
3605 | name = build_expr_from_tree (name); |
3606 | return build_x_function_call | |
3607 | (name, build_expr_from_tree (TREE_OPERAND (t, 1)), | |
4ac14744 | 3608 | current_class_ref); |
5566b478 MS |
3609 | } |
3610 | ||
3611 | case COND_EXPR: | |
3612 | return build_x_conditional_expr | |
3613 | (build_expr_from_tree (TREE_OPERAND (t, 0)), | |
3614 | build_expr_from_tree (TREE_OPERAND (t, 1)), | |
3615 | build_expr_from_tree (TREE_OPERAND (t, 2))); | |
3616 | ||
3617 | case TREE_LIST: | |
3618 | { | |
3619 | tree purpose, value, chain; | |
3620 | ||
3621 | if (t == void_list_node) | |
3622 | return t; | |
3623 | ||
3624 | purpose = TREE_PURPOSE (t); | |
3625 | if (purpose) | |
3626 | purpose = build_expr_from_tree (purpose); | |
3627 | value = TREE_VALUE (t); | |
3628 | if (value) | |
3629 | value = build_expr_from_tree (value); | |
3630 | chain = TREE_CHAIN (t); | |
3631 | if (chain && chain != void_type_node) | |
3632 | chain = build_expr_from_tree (chain); | |
e66d884e | 3633 | return expr_tree_cons (purpose, value, chain); |
5566b478 MS |
3634 | } |
3635 | ||
3636 | case COMPONENT_REF: | |
e1467ff2 MM |
3637 | return build_x_component_ref |
3638 | (build_expr_from_tree (TREE_OPERAND (t, 0)), | |
3639 | TREE_OPERAND (t, 1), NULL_TREE, 1); | |
3640 | ||
fc378698 MS |
3641 | case THROW_EXPR: |
3642 | return build_throw (build_expr_from_tree (TREE_OPERAND (t, 0))); | |
3643 | ||
5156628f MS |
3644 | case CONSTRUCTOR: |
3645 | { | |
2fcdec57 JM |
3646 | tree r; |
3647 | ||
3648 | /* digest_init will do the wrong thing if we let it. */ | |
3649 | if (TREE_TYPE (t) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t))) | |
3650 | return t; | |
3651 | ||
3652 | r = build_nt (CONSTRUCTOR, NULL_TREE, | |
3653 | build_expr_from_tree (CONSTRUCTOR_ELTS (t))); | |
5156628f MS |
3654 | |
3655 | if (TREE_TYPE (t)) | |
3656 | return digest_init (TREE_TYPE (t), r, 0); | |
3657 | return r; | |
3658 | } | |
3659 | ||
3660 | case TYPEID_EXPR: | |
e9f32eb5 MS |
3661 | if (TREE_CODE_CLASS (TREE_CODE (TREE_OPERAND (t, 0))) == 't') |
3662 | return get_typeid (TREE_OPERAND (t, 0)); | |
5156628f MS |
3663 | return build_x_typeid (build_expr_from_tree (TREE_OPERAND (t, 0))); |
3664 | ||
9a3b49ac MS |
3665 | case VAR_DECL: |
3666 | return convert_from_reference (t); | |
3667 | ||
8926095f | 3668 | default: |
5566b478 | 3669 | return t; |
51c184be | 3670 | } |
51c184be MS |
3671 | } |
3672 | ||
3673 | /* This is something of the form `int (*a)++' that has turned out to be an | |
3674 | expr. It was only converted into parse nodes, so we need to go through | |
3675 | and build up the semantics. Most of the work is done by | |
5566b478 | 3676 | build_expr_from_tree, above. |
51c184be MS |
3677 | |
3678 | In the above example, TYPE is `int' and DECL is `*a'. */ | |
e92cc029 | 3679 | |
51c184be MS |
3680 | tree |
3681 | reparse_decl_as_expr (type, decl) | |
3682 | tree type, decl; | |
3683 | { | |
5566b478 | 3684 | decl = build_expr_from_tree (decl); |
e3417fcd | 3685 | if (type) |
e66d884e | 3686 | return build_functional_cast (type, build_expr_list (NULL_TREE, decl)); |
e3417fcd MS |
3687 | else |
3688 | return decl; | |
51c184be MS |
3689 | } |
3690 | ||
3691 | /* This is something of the form `int (*a)' that has turned out to be a | |
3692 | decl. It was only converted into parse nodes, so we need to do the | |
e92cc029 | 3693 | checking that make_{pointer,reference}_declarator do. */ |
51c184be MS |
3694 | |
3695 | tree | |
3696 | finish_decl_parsing (decl) | |
3697 | tree decl; | |
3698 | { | |
8926095f MS |
3699 | extern int current_class_depth; |
3700 | ||
51c184be MS |
3701 | switch (TREE_CODE (decl)) |
3702 | { | |
3703 | case IDENTIFIER_NODE: | |
3704 | return decl; | |
3705 | case INDIRECT_REF: | |
3706 | return make_pointer_declarator | |
3707 | (NULL_TREE, finish_decl_parsing (TREE_OPERAND (decl, 0))); | |
3708 | case ADDR_EXPR: | |
3709 | return make_reference_declarator | |
3710 | (NULL_TREE, finish_decl_parsing (TREE_OPERAND (decl, 0))); | |
3711 | case BIT_NOT_EXPR: | |
3712 | TREE_OPERAND (decl, 0) = finish_decl_parsing (TREE_OPERAND (decl, 0)); | |
3713 | return decl; | |
8926095f | 3714 | case SCOPE_REF: |
a4443a08 | 3715 | push_nested_class (TREE_TYPE (TREE_OPERAND (decl, 0)), 3); |
8926095f MS |
3716 | TREE_COMPLEXITY (decl) = current_class_depth; |
3717 | return decl; | |
a28e3c7f MS |
3718 | case ARRAY_REF: |
3719 | TREE_OPERAND (decl, 0) = finish_decl_parsing (TREE_OPERAND (decl, 0)); | |
3720 | return decl; | |
8926095f MS |
3721 | default: |
3722 | my_friendly_abort (5); | |
3723 | return NULL_TREE; | |
51c184be MS |
3724 | } |
3725 | } | |
2986ae00 MS |
3726 | |
3727 | tree | |
3728 | check_cp_case_value (value) | |
3729 | tree value; | |
3730 | { | |
3731 | if (value == NULL_TREE) | |
3732 | return value; | |
3733 | ||
5566b478 MS |
3734 | /* Strip NON_LVALUE_EXPRs since we aren't using as an lvalue. */ |
3735 | STRIP_TYPE_NOPS (value); | |
2986ae00 MS |
3736 | |
3737 | if (TREE_READONLY_DECL_P (value)) | |
3738 | { | |
3739 | value = decl_constant_value (value); | |
5566b478 | 3740 | STRIP_TYPE_NOPS (value); |
2986ae00 MS |
3741 | } |
3742 | value = fold (value); | |
3743 | ||
3744 | if (TREE_CODE (value) != INTEGER_CST | |
3745 | && value != error_mark_node) | |
3746 | { | |
3747 | cp_error ("case label `%E' does not reduce to an integer constant", | |
3748 | value); | |
3749 | value = error_mark_node; | |
3750 | } | |
3751 | else | |
3752 | /* Promote char or short to int. */ | |
3753 | value = default_conversion (value); | |
3754 | ||
3755 | constant_expression_warning (value); | |
3756 | ||
3757 | return value; | |
3758 | } | |
6060a796 | 3759 | |
2c73f9f5 ML |
3760 | /* Return 1 if root encloses child. */ |
3761 | ||
30394414 JM |
3762 | static int |
3763 | is_namespace_ancestor (root, child) | |
3764 | tree root, child; | |
3765 | { | |
3766 | if (root == child) | |
3767 | return 1; | |
3768 | if (root == global_namespace) | |
3769 | return 1; | |
3770 | if (child == global_namespace) | |
3771 | return 0; | |
2c73f9f5 | 3772 | return is_namespace_ancestor (root, DECL_CONTEXT (child)); |
30394414 JM |
3773 | } |
3774 | ||
3775 | ||
2c73f9f5 ML |
3776 | /* Return the namespace that is the common ancestor |
3777 | of two given namespaces. */ | |
3778 | ||
30394414 JM |
3779 | static tree |
3780 | namespace_ancestor (ns1, ns2) | |
3781 | tree ns1, ns2; | |
3782 | { | |
3783 | if (is_namespace_ancestor (ns1, ns2)) | |
3784 | return ns1; | |
2c73f9f5 | 3785 | return namespace_ancestor (DECL_CONTEXT (ns1), ns2); |
30394414 JM |
3786 | } |
3787 | ||
3788 | /* Insert used into the using list of user. Set indirect_flag if this | |
3789 | directive is not directly from the source. Also find the common | |
3790 | ancestor and let our users know about the new namespace */ | |
3791 | static void | |
3792 | add_using_namespace (user, used, indirect) | |
3793 | tree user; | |
3794 | tree used; | |
3795 | int indirect; | |
3796 | { | |
3797 | tree iter; | |
2c73f9f5 | 3798 | /* Using oneself is a no-op. */ |
30394414 JM |
3799 | if (user == used) |
3800 | return; | |
3801 | my_friendly_assert (TREE_CODE (user) == NAMESPACE_DECL, 380); | |
3802 | my_friendly_assert (TREE_CODE (used) == NAMESPACE_DECL, 380); | |
2c73f9f5 | 3803 | /* Check if we already have this. */ |
30394414 JM |
3804 | if (purpose_member (used, DECL_NAMESPACE_USING (user)) != NULL_TREE) |
3805 | return; | |
3806 | ||
2c73f9f5 | 3807 | /* Add used to the user's using list. */ |
30394414 JM |
3808 | DECL_NAMESPACE_USING (user) |
3809 | = perm_tree_cons (used, namespace_ancestor (user, used), | |
3810 | DECL_NAMESPACE_USING (user)); | |
3811 | ||
3812 | TREE_INDIRECT_USING (DECL_NAMESPACE_USING (user)) = indirect; | |
3813 | ||
2c73f9f5 | 3814 | /* Add user to the used's users list. */ |
30394414 JM |
3815 | DECL_NAMESPACE_USERS (used) |
3816 | = perm_tree_cons (user, 0, DECL_NAMESPACE_USERS (used)); | |
3817 | ||
3818 | for (iter = DECL_NAMESPACE_USERS (user); iter; iter = TREE_CHAIN (iter)) | |
3819 | /* indirect usage */ | |
3820 | add_using_namespace (TREE_PURPOSE (iter), used, 1); | |
3821 | } | |
3822 | ||
2c73f9f5 ML |
3823 | /* Combines two sets of overloaded functions into an OVERLOAD chain. |
3824 | The first list becomes the tail of the result. */ | |
3825 | ||
3826 | static tree | |
3827 | merge_functions (s1, s2) | |
3828 | tree s1; | |
3829 | tree s2; | |
3830 | { | |
2c73f9f5 ML |
3831 | if (TREE_CODE (s2) == OVERLOAD) |
3832 | while (s2) | |
3833 | { | |
3834 | s1 = build_overload (OVL_FUNCTION (s2), s1); | |
3835 | s2 = OVL_CHAIN (s2); | |
3836 | } | |
3837 | else | |
3838 | s1 = build_overload (s2, s1); | |
3839 | return s1; | |
3840 | } | |
3841 | ||
30394414 JM |
3842 | /* This should return an error not all definitions define functions. |
3843 | It is not an error if we find two functions with exactly the | |
3844 | same signature, only if these are selected in overload resolution. | |
2c73f9f5 | 3845 | old is the current set of bindings, new the freshly-found binding. |
30394414 JM |
3846 | XXX Do we want to give *all* candidates in case of ambiguity? |
3847 | XXX In what way should I treat extern declarations? | |
3848 | XXX I don't want to repeat the entire duplicate_decls here */ | |
2c73f9f5 | 3849 | |
30394414 | 3850 | static tree |
2c73f9f5 ML |
3851 | ambiguous_decl (name, old, new) |
3852 | tree name; | |
3853 | tree old; | |
3854 | tree new; | |
30394414 | 3855 | { |
2c73f9f5 ML |
3856 | my_friendly_assert (old != NULL_TREE, 393); |
3857 | /* Copy the value. */ | |
3858 | if (!BINDING_VALUE (old)) | |
3859 | BINDING_VALUE (old) = BINDING_VALUE (new); | |
3860 | else if (BINDING_VALUE (new) | |
3861 | && BINDING_VALUE (new) != BINDING_VALUE (old)) | |
3862 | { | |
3863 | if (is_overloaded_fn (BINDING_VALUE (old)) | |
3864 | && is_overloaded_fn (BINDING_VALUE (new))) | |
3865 | { | |
3866 | BINDING_VALUE (old) = merge_functions (BINDING_VALUE (old), | |
3867 | BINDING_VALUE (new)); | |
3868 | } | |
3869 | else | |
3870 | { | |
3871 | /* Some declarations are functions, some are not. */ | |
3872 | cp_error ("ambiguous definition `%D' used", name); | |
3873 | cp_error_at ("first definition here", BINDING_VALUE (old)); | |
3874 | cp_error_at ("other definition here", BINDING_VALUE (new)); | |
3875 | return error_mark_node; | |
3876 | } | |
3877 | } | |
3878 | /* ... and copy the type. */ | |
3879 | if (!BINDING_TYPE (old)) | |
3880 | BINDING_TYPE (old) = BINDING_TYPE (new); | |
3881 | else if(BINDING_TYPE (new) | |
3882 | && BINDING_TYPE (old) != BINDING_TYPE (new)) | |
30394414 | 3883 | { |
2c73f9f5 ML |
3884 | cp_error ("`%D' denotes an ambiguous type",name); |
3885 | cp_error_at ("first type here", BINDING_TYPE (old)); | |
3886 | cp_error_at ("other type here", BINDING_TYPE (new)); | |
30394414 | 3887 | } |
2c73f9f5 | 3888 | return old; |
30394414 JM |
3889 | } |
3890 | ||
2c73f9f5 ML |
3891 | /* Add the bindings of name in used namespaces to val. |
3892 | The using list is defined by current, and the lookup goes to scope. | |
3893 | Returns zero on errors. */ | |
3894 | ||
3895 | int | |
30394414 JM |
3896 | lookup_using_namespace (name, val, current, scope) |
3897 | tree name, val, current, scope; | |
3898 | { | |
3899 | tree iter; | |
3900 | tree val1; | |
2c73f9f5 ML |
3901 | /* Iterate over all namespaces from current to scope. */ |
3902 | while (val != error_mark_node) | |
30394414 | 3903 | { |
2c73f9f5 ML |
3904 | /* Iterate over all used namespaces in current, searching for |
3905 | using directives of scope. */ | |
30394414 JM |
3906 | for (iter = DECL_NAMESPACE_USING (current); |
3907 | iter; iter = TREE_CHAIN (iter)) | |
3908 | if (TREE_VALUE (iter) == scope) | |
3909 | { | |
2c73f9f5 ML |
3910 | val1 = binding_for_name (name, TREE_PURPOSE (iter)); |
3911 | /* Resolve ambiguities. */ | |
30394414 | 3912 | val = ambiguous_decl (name, val, val1); |
30394414 JM |
3913 | } |
3914 | if (current == scope) | |
3915 | break; | |
2c73f9f5 | 3916 | current = DECL_CONTEXT (current); |
30394414 | 3917 | } |
2c73f9f5 | 3918 | return val != error_mark_node; |
30394414 JM |
3919 | } |
3920 | ||
2c73f9f5 ML |
3921 | /* [namespace.qual] |
3922 | Excepts the name to lookup and its qualifying scope. | |
3923 | Returns the name/type pair found into the CPLUS_BINDING result, | |
3924 | or 0 on error. */ | |
3925 | ||
3926 | int | |
3927 | qualified_lookup_using_namespace (name, scope, result) | |
30394414 JM |
3928 | tree name; |
3929 | tree scope; | |
2c73f9f5 | 3930 | tree result; |
30394414 | 3931 | { |
2c73f9f5 | 3932 | /* Maintain a list of namespaces visited... */ |
30394414 | 3933 | tree seen = NULL_TREE; |
2c73f9f5 | 3934 | /* ... and a list of namespace yet to see. */ |
30394414 JM |
3935 | tree todo = NULL_TREE; |
3936 | tree usings; | |
2c73f9f5 | 3937 | while (scope && (result != error_mark_node)) |
30394414 JM |
3938 | { |
3939 | seen = temp_tree_cons (scope, NULL_TREE, seen); | |
2c73f9f5 ML |
3940 | result = ambiguous_decl (name, result, binding_for_name (name, scope)); |
3941 | if (!BINDING_VALUE (result) && !BINDING_TYPE (result)) | |
3942 | /* Consider using directives. */ | |
30394414 JM |
3943 | for (usings = DECL_NAMESPACE_USING (scope); usings; |
3944 | usings = TREE_CHAIN (usings)) | |
2c73f9f5 | 3945 | /* If this was a real directive, and we have not seen it. */ |
30394414 JM |
3946 | if (!TREE_INDIRECT_USING (usings) |
3947 | && !purpose_member (seen, TREE_PURPOSE (usings))) | |
3948 | todo = temp_tree_cons (TREE_PURPOSE (usings), NULL_TREE, todo); | |
3949 | if (todo) | |
3950 | { | |
3951 | scope = TREE_PURPOSE (todo); | |
3952 | todo = TREE_CHAIN (todo); | |
3953 | } | |
3954 | else | |
2c73f9f5 | 3955 | scope = NULL_TREE; /* If there never was a todo list. */ |
30394414 | 3956 | } |
2c73f9f5 | 3957 | return result != error_mark_node; |
30394414 | 3958 | } |
6060a796 | 3959 | |
2c73f9f5 ML |
3960 | /* [namespace.memdef]/2 */ |
3961 | ||
3962 | /* Set the context of a declaration to scope. Complain if we are not | |
3963 | outside scope. */ | |
3964 | ||
3965 | void | |
3966 | set_decl_namespace (decl, scope) | |
3967 | tree decl; | |
3968 | tree scope; | |
3969 | { | |
3970 | tree old; | |
3971 | if (scope == std_node) | |
3972 | scope = global_namespace; | |
3973 | if (!is_namespace_ancestor (current_namespace, scope)) | |
3974 | cp_error ("declaration of `%D' not in a namespace surrounding `%D'", | |
3975 | decl, scope); | |
3976 | DECL_CONTEXT (decl) = scope; | |
3977 | if (scope != current_namespace) | |
3978 | { | |
3979 | /* See whether this has been declared in the namespace. */ | |
3980 | old = namespace_binding (DECL_NAME (decl), scope); | |
3981 | if (!old) | |
3982 | /* No old declaration at all. */ | |
3983 | goto complain; | |
3984 | if (!is_overloaded_fn (decl)) | |
3985 | /* Don't compare non-function decls with decls_match here, | |
3986 | since it can't check for the correct constness at this | |
3987 | point. pushdecl will find those errors later. */ | |
3988 | return; | |
3989 | /* Since decl is a function, old should contain a function decl. */ | |
3990 | if (!is_overloaded_fn (old)) | |
3991 | goto complain; | |
3992 | for (; old; old = OVL_NEXT (old)) | |
3993 | if (decls_match (decl, OVL_CURRENT (old))) | |
3994 | return; | |
3995 | } | |
3996 | else | |
3997 | return; | |
3998 | complain: | |
3999 | cp_error ("`%D' should have been declared inside `%D'", | |
4000 | decl, scope); | |
4001 | } | |
4002 | ||
4003 | /* Compute the namespace where a declaration is defined. */ | |
e92cc029 | 4004 | |
6060a796 | 4005 | tree |
2c73f9f5 ML |
4006 | decl_namespace (decl) |
4007 | tree decl; | |
6060a796 | 4008 | { |
2c73f9f5 ML |
4009 | while (DECL_CONTEXT (decl)) |
4010 | { | |
4011 | decl = DECL_CONTEXT (decl); | |
4012 | if (TREE_CODE (decl) == NAMESPACE_DECL) | |
4013 | return decl; | |
4014 | if (TREE_CODE_CLASS (TREE_CODE (decl)) == 't') | |
4015 | decl = TYPE_STUB_DECL (decl); | |
4016 | my_friendly_assert (TREE_CODE_CLASS (TREE_CODE (decl)) == 'd', 390); | |
4017 | } | |
4018 | ||
4019 | /* We should always find the namespace. */ | |
4020 | my_friendly_abort (390); | |
4021 | return NULL_TREE; | |
6060a796 MS |
4022 | } |
4023 | ||
2c73f9f5 | 4024 | /* Return the namespace where the current declaration is declared. */ |
e92cc029 | 4025 | |
6060a796 | 4026 | tree |
2c73f9f5 | 4027 | current_decl_namespace () |
6060a796 | 4028 | { |
2c73f9f5 ML |
4029 | tree result; |
4030 | /* If we have been pushed into a different namespace, use it. */ | |
4031 | if (decl_namespace_list) | |
4032 | return TREE_PURPOSE (decl_namespace_list); | |
4033 | ||
4034 | if (current_class_type) | |
4035 | if (CLASSTYPE_USE_TEMPLATE (current_class_type)) | |
4036 | result = decl_namespace (CLASSTYPE_TI_TEMPLATE (current_class_type)); | |
4037 | else | |
4038 | result = decl_namespace (TYPE_STUB_DECL (current_class_type)); | |
4039 | else if (current_function_decl) | |
4040 | if (DECL_USE_TEMPLATE (current_function_decl)) | |
4041 | result = decl_namespace (DECL_TI_TEMPLATE (current_function_decl)); | |
4042 | else | |
4043 | result = decl_namespace (current_function_decl); | |
4044 | else | |
4045 | result = current_namespace; | |
4046 | return result; | |
4047 | } | |
6060a796 | 4048 | |
2c73f9f5 | 4049 | /* Temporarily set the namespace for the current declaration. */ |
6060a796 | 4050 | |
2c73f9f5 ML |
4051 | void |
4052 | push_decl_namespace (decl) | |
4053 | tree decl; | |
4054 | { | |
4055 | if (TREE_CODE (decl) != NAMESPACE_DECL) | |
4056 | decl = decl_namespace (decl); | |
4057 | decl_namespace_list = tree_cons (decl, NULL_TREE, decl_namespace_list); | |
4058 | } | |
4059 | ||
4060 | void | |
4061 | pop_decl_namespace () | |
4062 | { | |
4063 | decl_namespace_list = TREE_CHAIN (decl_namespace_list); | |
4064 | } | |
4065 | ||
4066 | /* [basic.lookup.koenig] */ | |
4067 | /* A non-zero return value in the functions below indicates an error. | |
4068 | All nodes allocated in the procedure are on the scratch obstack. */ | |
4069 | ||
4070 | struct arg_lookup | |
4071 | { | |
4072 | tree name; | |
4073 | tree namespaces; | |
4074 | tree classes; | |
4075 | tree functions; | |
4076 | }; | |
4077 | ||
4078 | static int arg_assoc PROTO((struct arg_lookup*, tree)); | |
4079 | static int arg_assoc_args PROTO((struct arg_lookup*, tree)); | |
4080 | ||
4081 | /* Add a function to the lookup structure. */ | |
4082 | ||
4083 | static int | |
4084 | add_function (k, fn) | |
4085 | struct arg_lookup *k; | |
4086 | tree fn; | |
4087 | { | |
4088 | if (ovl_member (fn, k->functions)) | |
4089 | return 0; | |
4090 | k->functions = build_overload (fn, k->functions); | |
4091 | return 0; | |
4092 | } | |
4093 | ||
4094 | /* Add functions of a namespace to the lookup structure. */ | |
4095 | ||
4096 | static int | |
4097 | arg_assoc_namespace (k, scope) | |
4098 | struct arg_lookup *k; | |
4099 | tree scope; | |
4100 | { | |
4101 | tree value; | |
4102 | ||
4103 | if (purpose_member (scope, k->namespaces)) | |
4104 | return 0; | |
4105 | k->namespaces = tree_cons (scope, NULL_TREE, k->namespaces); | |
4106 | ||
4107 | value = namespace_binding (k->name, scope); | |
4108 | if (!value) | |
4109 | return 0; | |
4110 | ||
4111 | if (!is_overloaded_fn (value)) | |
4112 | { | |
4113 | cp_error_at ("`%D' is not a function", value); | |
4114 | cp_error ("in call to `%D'", k->name); | |
4115 | return 1; | |
4116 | } | |
4117 | ||
4118 | for (; value; value = OVL_NEXT (value)) | |
4119 | if (add_function (k, OVL_CURRENT (value))) | |
4120 | return 1; | |
4121 | ||
4122 | return 0; | |
6060a796 | 4123 | } |
2c73f9f5 ML |
4124 | |
4125 | /* Adds everything associated with class to the lookup structure. */ | |
4126 | ||
4127 | static int | |
4128 | arg_assoc_class (k, type) | |
4129 | struct arg_lookup* k; | |
4130 | tree type; | |
4131 | { | |
4132 | tree list, friends, context; | |
4133 | int i; | |
4134 | ||
4135 | if (purpose_member (type, k->classes)) | |
4136 | return 0; | |
4137 | k->classes = tree_cons (type, NULL_TREE, k->classes); | |
4138 | ||
4139 | context = decl_namespace (TYPE_MAIN_DECL (type)); | |
4140 | if (arg_assoc_namespace (k, context)) | |
4141 | return 1; | |
4142 | ||
4143 | /* Process baseclasses. */ | |
4144 | for (i = 0; i < CLASSTYPE_N_BASECLASSES (type); i++) | |
4145 | if (arg_assoc_class (k, TYPE_BINFO_BASETYPE (type, i))) | |
4146 | return 1; | |
4147 | ||
4148 | /* Process friends. */ | |
4149 | for (list = DECL_FRIENDLIST (TYPE_MAIN_DECL (type)); list; | |
4150 | list = TREE_CHAIN (list)) | |
4151 | if (k->name == TREE_PURPOSE (list)) | |
4152 | for (friends = TREE_VALUE (list); friends; | |
4153 | friends = TREE_CHAIN (friends)) | |
4154 | /* Only interested in global functions with potentially hidden | |
4155 | (i.e. unqualified) declarations. */ | |
4156 | if (TREE_PURPOSE (list) == error_mark_node && TREE_VALUE (list) | |
4157 | && decl_namespace (TREE_VALUE (list)) == context) | |
4158 | if (add_function (k, TREE_VALUE (list))) | |
4159 | return 1; | |
4160 | return 0; | |
4161 | } | |
4162 | ||
4163 | /* Adds everything associated with a given type. */ | |
4164 | ||
4165 | static int | |
4166 | arg_assoc_type (k, type) | |
4167 | struct arg_lookup *k; | |
4168 | tree type; | |
4169 | { | |
4170 | switch (TREE_CODE (type)) | |
4171 | { | |
4172 | case VOID_TYPE: | |
4173 | case INTEGER_TYPE: | |
4174 | case REAL_TYPE: | |
4175 | case COMPLEX_TYPE: | |
4176 | case CHAR_TYPE: | |
4177 | case BOOLEAN_TYPE: | |
4178 | return 0; | |
4179 | case RECORD_TYPE: | |
4180 | if (TYPE_PTRMEMFUNC_P (type)) | |
4181 | return arg_assoc_type (k, TYPE_PTRMEMFUNC_FN_TYPE (type)); | |
4182 | return arg_assoc_class (k, type); | |
4183 | case POINTER_TYPE: | |
4184 | case REFERENCE_TYPE: | |
4185 | case ARRAY_TYPE: | |
4186 | return arg_assoc_type (k, TREE_TYPE (type)); | |
4187 | case UNION_TYPE: | |
4188 | case ENUMERAL_TYPE: | |
4189 | return arg_assoc_namespace (k, decl_namespace (TYPE_MAIN_DECL (type))); | |
4190 | case METHOD_TYPE: | |
4191 | /* Associate the class of the method. */ | |
4192 | if (arg_assoc_type (k, TYPE_METHOD_BASETYPE (type))) | |
4193 | return 1; | |
4194 | /* Fall through. */ | |
4195 | case FUNCTION_TYPE: | |
4196 | /* Associate the parameter types. */ | |
4197 | if (arg_assoc_args (k, TYPE_ARG_TYPES (type))) | |
4198 | return 1; | |
4199 | /* Associate the return type. */ | |
4200 | return arg_assoc_type (k, TREE_TYPE (type)); | |
4201 | default: | |
4202 | my_friendly_abort (390); | |
4203 | } | |
4204 | return 0; | |
4205 | } | |
4206 | ||
4207 | /* Adds everything associated with arguments. */ | |
4208 | ||
4209 | static int | |
4210 | arg_assoc_args (k, args) | |
4211 | struct arg_lookup* k; | |
4212 | tree args; | |
4213 | { | |
4214 | for (; args; args = TREE_CHAIN (args)) | |
4215 | if (arg_assoc (k, TREE_VALUE (args))) | |
4216 | return 1; | |
4217 | return 0; | |
4218 | } | |
4219 | ||
4220 | /* Adds everything associated with a given tree_node. */ | |
4221 | ||
4222 | static int | |
4223 | arg_assoc (k, n) | |
4224 | struct arg_lookup* k; | |
4225 | tree n; | |
4226 | { | |
4227 | switch (TREE_CODE_CLASS (TREE_CODE (n))) | |
4228 | { | |
4229 | case 't': | |
4230 | return arg_assoc_type (k, n); | |
4231 | case 'c': | |
4232 | case '1': | |
4233 | case '2': | |
4234 | case '<': | |
4235 | case 'r': | |
4236 | return arg_assoc_type (k, TREE_TYPE (n)); | |
4237 | case 'e': | |
4238 | switch (TREE_CODE (n)) | |
4239 | { | |
4240 | case ADDR_EXPR: | |
4241 | /* special processing */ | |
4242 | break; | |
4243 | default: | |
4244 | return arg_assoc_type (k, TREE_TYPE (n)); | |
4245 | } | |
4246 | default: | |
4247 | break; | |
4248 | } | |
4249 | ||
4250 | while (n) | |
4251 | switch (TREE_CODE (n)) | |
4252 | { | |
4253 | case CONST_DECL: /* 'd' */ | |
4254 | case VAR_DECL: | |
4255 | case PARM_DECL: | |
4256 | case RESULT_DECL: | |
4257 | return arg_assoc_type (k, TREE_TYPE (n)); | |
4258 | case ADDR_EXPR: /* 'e' */ | |
4259 | /* We can't use the TREE_TYPE, as the type of an overloaded function | |
4260 | will be useless here. */ | |
4261 | n = TREE_OPERAND (n, 0); | |
4262 | continue; | |
4263 | case OVERLOAD: /* 'x' */ | |
4264 | if (arg_assoc (k, OVL_CURRENT (n))) | |
4265 | return 1; | |
4266 | n = OVL_NEXT (n); | |
4267 | continue; | |
4268 | case TREE_LIST: /* 'x' */ | |
4269 | /* XXX Overloaded member, should get an OVERLOAD directly, here. */ | |
4270 | n = TREE_VALUE (n); | |
4271 | continue; | |
4272 | case FUNCTION_DECL: /* 'd' */ | |
4273 | if (arg_assoc_args (k, FUNCTION_ARG_CHAIN (n))) | |
4274 | return 1; | |
4275 | if (DECL_FUNCTION_MEMBER_P (n)) | |
4276 | if (arg_assoc_type (k, DECL_CLASS_CONTEXT (n))) | |
4277 | return 1; | |
4278 | return 0; | |
4279 | default: | |
4280 | cp_error ("sorry, Koenig lookup for `%s' of type `%T' failed", | |
4281 | tree_code_name [(int)TREE_CODE (n)], TREE_TYPE (n)); | |
4282 | my_friendly_abort (391); | |
4283 | } | |
4284 | return 0; | |
4285 | } | |
4286 | ||
4287 | /* Performs Koenig lookup depending on arguments, where fns | |
4288 | are the functions found in normal lookup. */ | |
4289 | ||
4290 | tree | |
4291 | lookup_arg_dependent (name, fns, args) | |
4292 | tree name; | |
4293 | tree fns; | |
4294 | tree args; | |
4295 | { | |
4296 | struct arg_lookup k; | |
4297 | k.name = name; | |
4298 | k.functions = fns; | |
4299 | k.namespaces = NULL_TREE; | |
4300 | k.classes = NULL_TREE; | |
4301 | ||
4302 | push_scratch_obstack (); | |
4303 | arg_assoc_args (&k, args); | |
4304 | pop_obstacks (); | |
4305 | return k.functions; | |
4306 | } | |
4307 | ||
4308 | /* Process a namespace-alias declaration. */ | |
6060a796 | 4309 | |
6060a796 | 4310 | void |
a9aedbc2 MS |
4311 | do_namespace_alias (alias, namespace) |
4312 | tree alias, namespace; | |
6060a796 | 4313 | { |
30394414 JM |
4314 | tree binding; |
4315 | tree ns; | |
4316 | if (TREE_CODE (namespace) == IDENTIFIER_NODE) | |
4317 | ns = lookup_name (namespace, 1); | |
4318 | else | |
4319 | ns = namespace; | |
4320 | if (TREE_CODE (ns) != NAMESPACE_DECL) | |
4321 | { | |
4322 | cp_error ("`%D' is not a namespace", namespace); | |
4323 | return; | |
4324 | } | |
4325 | binding = binding_for_name (alias, current_namespace); | |
4326 | if (BINDING_VALUE (binding) && BINDING_VALUE (binding) != namespace) | |
4327 | { | |
4328 | cp_error ("invalid namespace alias `%D'", alias); | |
4329 | cp_error_at ("`%D' previously declared here", alias); | |
4330 | } | |
4331 | else | |
4332 | { | |
4333 | /* XXX the alias is not exactly identical to the name space, | |
4334 | it must not be used in a using directive or namespace alias */ | |
4335 | BINDING_VALUE (binding) = ns; | |
4336 | } | |
6060a796 MS |
4337 | } |
4338 | ||
2c73f9f5 ML |
4339 | /* Process a using-declaration not appearing in class or local scope. */ |
4340 | ||
6b5fbb55 | 4341 | void |
a9aedbc2 MS |
4342 | do_toplevel_using_decl (decl) |
4343 | tree decl; | |
6060a796 | 4344 | { |
2c73f9f5 ML |
4345 | tree scope, name, binding, decls, newval, newtype; |
4346 | struct tree_binding _decls; | |
4347 | ||
6633d636 MS |
4348 | if (TREE_CODE (decl) == SCOPE_REF |
4349 | && TREE_OPERAND (decl, 0) == std_node) | |
4350 | return; | |
2c73f9f5 ML |
4351 | if (TREE_CODE (decl) == SCOPE_REF) |
4352 | { | |
4353 | scope = TREE_OPERAND (decl, 0); | |
4354 | name = TREE_OPERAND (decl, 1); | |
4355 | } | |
4356 | else if (TREE_CODE (decl) == IDENTIFIER_NODE) | |
4357 | { | |
4358 | scope = global_namespace; | |
4359 | name = decl; | |
4360 | } | |
4361 | else | |
4362 | my_friendly_abort (382); | |
4363 | if (TREE_CODE_CLASS (TREE_CODE (name)) == 'd') | |
4364 | name = DECL_NAME (name); | |
4365 | /* Make a USING_DECL. */ | |
4366 | decl = push_using_decl (scope, name); | |
4367 | if (!decl) | |
4368 | return; | |
4369 | ||
4370 | binding = binding_for_name (name, current_namespace); | |
4371 | decls = binding_init (&_decls); | |
4372 | if (!qualified_lookup_using_namespace (name, scope, decls)) | |
4373 | /* Lookup error */ | |
a9aedbc2 | 4374 | return; |
6060a796 | 4375 | |
2c73f9f5 ML |
4376 | if (!BINDING_VALUE (decls) && !BINDING_TYPE (decls)) |
4377 | { | |
4378 | cp_error ("`%D' not declared", name); | |
4379 | return; | |
4380 | } | |
4381 | newval = newtype = NULL_TREE; | |
4382 | ||
4383 | /* Check for using functions. */ | |
4384 | if (BINDING_VALUE (decls) && is_overloaded_fn (BINDING_VALUE (decls))) | |
4385 | { | |
4386 | tree oldval = BINDING_VALUE (binding); | |
4387 | tree tmp, tmp1; | |
4388 | newval = oldval; | |
4389 | for (tmp = BINDING_VALUE (decls); tmp; tmp = OVL_NEXT (tmp)) | |
4390 | { | |
4391 | ||
4392 | /* Compare each new function with each old one. | |
4393 | If the old function was also used, there is no conflict. */ | |
4394 | for (tmp1 = oldval; tmp1; tmp1 = OVL_NEXT (tmp1)) | |
4395 | if (OVL_CURRENT (tmp) == OVL_CURRENT (tmp1)) | |
4396 | break; | |
4397 | else if (OVL_USED (tmp1)) | |
4398 | continue; | |
4399 | else if (duplicate_decls (OVL_CURRENT (tmp), OVL_CURRENT (tmp1))) | |
4400 | return; | |
a9aedbc2 | 4401 | |
2c73f9f5 ML |
4402 | /* Duplicate use, ignore */ |
4403 | if (tmp1) | |
4404 | continue; | |
4405 | ||
4406 | newval = build_overload (OVL_CURRENT (tmp), newval); | |
4407 | if (TREE_CODE (newval) != OVERLOAD) | |
4408 | newval = ovl_cons (newval, NULL_TREE); | |
4409 | OVL_USED (newval) = 1; | |
4410 | } | |
4411 | } | |
4412 | else | |
a9aedbc2 | 4413 | { |
2c73f9f5 ML |
4414 | tree oldval = BINDING_VALUE (binding); |
4415 | newval = BINDING_VALUE (decls); | |
4416 | if (oldval && oldval != newval && !duplicate_decls (newval, oldval)) | |
4417 | newval = oldval; | |
4418 | } | |
4419 | ||
4420 | newtype = BINDING_TYPE (decls); | |
4421 | if (BINDING_TYPE (binding) && newtype && BINDING_TYPE (binding) != newtype) | |
4422 | { | |
4423 | cp_error ("using directive `%D' introduced ambiguous type `%T'", | |
4424 | name, BINDING_TYPE (decls)); | |
4425 | return; | |
a9aedbc2 | 4426 | } |
2c73f9f5 ML |
4427 | /* Copy declarations found. */ |
4428 | if (newval) | |
4429 | BINDING_VALUE (binding) = newval; | |
4430 | if (newtype) | |
4431 | BINDING_TYPE (binding) = newtype; | |
4432 | return; | |
6060a796 MS |
4433 | } |
4434 | ||
4435 | tree | |
a9aedbc2 | 4436 | do_class_using_decl (decl) |
6060a796 MS |
4437 | tree decl; |
4438 | { | |
cffa8729 | 4439 | tree name, value; |
f30432d7 | 4440 | |
2c73f9f5 ML |
4441 | if (TREE_CODE (decl) != SCOPE_REF |
4442 | || TREE_CODE_CLASS (TREE_CODE (TREE_OPERAND (decl, 0))) != 't') | |
cffa8729 MS |
4443 | { |
4444 | cp_error ("using-declaration for non-member at class scope"); | |
4445 | return NULL_TREE; | |
4446 | } | |
4447 | name = TREE_OPERAND (decl, 1); | |
4448 | if (TREE_CODE (name) == BIT_NOT_EXPR) | |
4449 | { | |
4450 | cp_error ("using-declaration for destructor"); | |
4451 | return NULL_TREE; | |
4452 | } | |
4453 | ||
5566b478 | 4454 | value = build_lang_field_decl (USING_DECL, name, void_type_node); |
cffa8729 MS |
4455 | DECL_INITIAL (value) = TREE_OPERAND (decl, 0); |
4456 | return value; | |
6060a796 MS |
4457 | } |
4458 | ||
2c73f9f5 ML |
4459 | /* Process a using-directive. */ |
4460 | ||
6060a796 MS |
4461 | void |
4462 | do_using_directive (namespace) | |
4463 | tree namespace; | |
4464 | { | |
6633d636 MS |
4465 | if (namespace == std_node) |
4466 | return; | |
2c73f9f5 ML |
4467 | if (!toplevel_bindings_p ()) |
4468 | { | |
4469 | sorry ("using directives inside functions"); | |
4470 | return; | |
4471 | } | |
30394414 JM |
4472 | /* using A::B::C; */ |
4473 | if (TREE_CODE (namespace) == SCOPE_REF) | |
4474 | namespace = TREE_OPERAND (namespace, 1); | |
2c73f9f5 ML |
4475 | if (TREE_CODE (namespace) == IDENTIFIER_NODE) |
4476 | { | |
4477 | /* Lookup in lexer did not find a namespace. */ | |
4478 | cp_error ("namespace `%T' undeclared", namespace); | |
4479 | return; | |
4480 | } | |
4481 | if (TREE_CODE (namespace) != NAMESPACE_DECL) | |
4482 | { | |
4483 | cp_error ("`%T' is not a namespace", namespace); | |
4484 | return; | |
4485 | } | |
30394414 JM |
4486 | /* direct usage */ |
4487 | add_using_namespace (current_namespace, namespace, 0); | |
6060a796 | 4488 | } |
f30432d7 MS |
4489 | |
4490 | void | |
4491 | check_default_args (x) | |
4492 | tree x; | |
4493 | { | |
4494 | tree arg = TYPE_ARG_TYPES (TREE_TYPE (x)); | |
4495 | int saw_def = 0, i = 0 - (TREE_CODE (TREE_TYPE (x)) == METHOD_TYPE); | |
4496 | for (; arg && arg != void_list_node; arg = TREE_CHAIN (arg), ++i) | |
4497 | { | |
4498 | if (TREE_PURPOSE (arg)) | |
4499 | saw_def = 1; | |
4500 | else if (saw_def) | |
4501 | { | |
b7698cf0 JM |
4502 | cp_error_at ("default argument missing for parameter %P of `%+#D'", |
4503 | i, x); | |
f30432d7 MS |
4504 | break; |
4505 | } | |
4506 | } | |
4507 | } | |
72b7eeff MS |
4508 | |
4509 | void | |
4510 | mark_used (decl) | |
4511 | tree decl; | |
4512 | { | |
4513 | TREE_USED (decl) = 1; | |
5156628f | 4514 | if (processing_template_decl) |
5566b478 | 4515 | return; |
72b7eeff | 4516 | assemble_external (decl); |
73aad9b9 JM |
4517 | /* Is it a synthesized method that needs to be synthesized? */ |
4518 | if (TREE_CODE (decl) == FUNCTION_DECL && DECL_CLASS_CONTEXT (decl) | |
4519 | && DECL_ARTIFICIAL (decl) && ! DECL_INITIAL (decl) | |
4520 | /* Kludge: don't synthesize for default args. */ | |
4521 | && current_function_decl) | |
4522 | synthesize_method (decl); | |
5566b478 MS |
4523 | if (DECL_LANG_SPECIFIC (decl) && DECL_TEMPLATE_INFO (decl)) |
4524 | instantiate_decl (decl); | |
72b7eeff | 4525 | } |
f62dbf03 JM |
4526 | |
4527 | /* Helper function for named_class_head_sans_basetype nonterminal. */ | |
4528 | ||
4529 | tree | |
4530 | handle_class_head (aggr, scope, id) | |
4531 | tree aggr, scope, id; | |
4532 | { | |
4533 | if (TREE_CODE (id) == TYPE_DECL) | |
4534 | return id; | |
4535 | ||
4536 | if (scope) | |
4537 | cp_error ("`%T' does not have a nested type named `%D'", scope, id); | |
4538 | else | |
4539 | cp_error ("no file-scope type named `%D'", id); | |
4540 | ||
4541 | id = xref_tag | |
4542 | (aggr, make_anon_name (), NULL_TREE, 1); | |
4543 | return TYPE_MAIN_DECL (id); | |
4544 | } |