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9219021c | 1 | /* Helper routines for C++ support in GDB. |
32d0add0 | 2 | Copyright (C) 2003-2015 Free Software Foundation, Inc. |
9219021c | 3 | |
1fcb5155 | 4 | Contributed by David Carlton and by Kealia, Inc. |
9219021c DC |
5 | |
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
9219021c DC |
11 | (at your option) any later version. |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
9219021c DC |
20 | |
21 | #include "defs.h" | |
22 | #include "cp-support.h" | |
23 | #include "gdb_obstack.h" | |
24 | #include "symtab.h" | |
25 | #include "symfile.h" | |
9219021c | 26 | #include "block.h" |
5c4e30ca DC |
27 | #include "objfiles.h" |
28 | #include "gdbtypes.h" | |
29 | #include "dictionary.h" | |
30 | #include "command.h" | |
b368761e | 31 | #include "frame.h" |
27aa8d6a | 32 | #include "buildsym.h" |
34eaf542 | 33 | #include "language.h" |
9219021c | 34 | |
6f27419a DE |
35 | static struct symbol * |
36 | cp_lookup_nested_symbol_1 (struct type *container_type, | |
37 | const char *nested_name, | |
38 | const char *concatenated_name, | |
39 | const struct block *block, | |
96553a0c | 40 | int basic_lookup, int is_in_anonymous); |
6f27419a | 41 | |
b368761e DC |
42 | static struct type *cp_lookup_transparent_type_loop (const char *name, |
43 | const char *scope, | |
44 | int scope_len); | |
45 | ||
9219021c DC |
46 | /* Check to see if SYMBOL refers to an object contained within an |
47 | anonymous namespace; if so, add an appropriate using directive. */ | |
48 | ||
9219021c | 49 | void |
a10964d1 AR |
50 | cp_scan_for_anonymous_namespaces (const struct symbol *const symbol, |
51 | struct objfile *const objfile) | |
9219021c | 52 | { |
df8a16a1 | 53 | if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) |
9219021c | 54 | { |
df8a16a1 | 55 | const char *name = SYMBOL_DEMANGLED_NAME (symbol); |
9219021c DC |
56 | unsigned int previous_component; |
57 | unsigned int next_component; | |
9219021c DC |
58 | |
59 | /* Start with a quick-and-dirty check for mention of "(anonymous | |
60 | namespace)". */ | |
61 | ||
59da4d04 | 62 | if (!cp_is_in_anonymous (name)) |
9219021c DC |
63 | return; |
64 | ||
65 | previous_component = 0; | |
66 | next_component = cp_find_first_component (name + previous_component); | |
67 | ||
68 | while (name[next_component] == ':') | |
69 | { | |
2b1dbab0 KS |
70 | if (((next_component - previous_component) |
71 | == CP_ANONYMOUS_NAMESPACE_LEN) | |
9219021c | 72 | && strncmp (name + previous_component, |
2b1dbab0 KS |
73 | CP_ANONYMOUS_NAMESPACE_STR, |
74 | CP_ANONYMOUS_NAMESPACE_LEN) == 0) | |
9219021c | 75 | { |
aff410f1 MS |
76 | int dest_len = (previous_component == 0 |
77 | ? 0 : previous_component - 2); | |
8c902bb1 | 78 | int src_len = next_component; |
794684b6 | 79 | |
8c902bb1 SW |
80 | char *dest = alloca (dest_len + 1); |
81 | char *src = alloca (src_len + 1); | |
794684b6 | 82 | |
8c902bb1 SW |
83 | memcpy (dest, name, dest_len); |
84 | memcpy (src, name, src_len); | |
794684b6 | 85 | |
8c902bb1 SW |
86 | dest[dest_len] = '\0'; |
87 | src[src_len] = '\0'; | |
794684b6 | 88 | |
9219021c DC |
89 | /* We've found a component of the name that's an |
90 | anonymous namespace. So add symbols in it to the | |
91 | namespace given by the previous component if there is | |
92 | one, or to the global namespace if there isn't. */ | |
12aaed36 | 93 | cp_add_using_directive (dest, src, NULL, NULL, NULL, 1, |
a10964d1 | 94 | &objfile->objfile_obstack); |
9219021c DC |
95 | } |
96 | /* The "+ 2" is for the "::". */ | |
97 | previous_component = next_component + 2; | |
98 | next_component = (previous_component | |
99 | + cp_find_first_component (name | |
100 | + previous_component)); | |
101 | } | |
102 | } | |
103 | } | |
104 | ||
aff410f1 MS |
105 | /* Add a using directive to using_directives. If the using directive |
106 | in question has already been added, don't add it twice. | |
107 | ||
108 | Create a new struct using_direct which imports the namespace SRC | |
109 | into the scope DEST. ALIAS is the name of the imported namespace | |
110 | in the current scope. If ALIAS is NULL then the namespace is known | |
111 | by its original name. DECLARATION is the name if the imported | |
112 | varable if this is a declaration import (Eg. using A::x), otherwise | |
12aaed36 TT |
113 | it is NULL. EXCLUDES is a list of names not to import from an |
114 | imported module or NULL. If COPY_NAMES is non-zero, then the | |
115 | arguments are copied into newly allocated memory so they can be | |
116 | temporaries. For EXCLUDES the VEC pointers are copied but the | |
32019081 | 117 | pointed to characters are not copied. */ |
9219021c DC |
118 | |
119 | void | |
13387711 SW |
120 | cp_add_using_directive (const char *dest, |
121 | const char *src, | |
122 | const char *alias, | |
123 | const char *declaration, | |
32019081 | 124 | VEC (const_char_ptr) *excludes, |
12aaed36 | 125 | int copy_names, |
c0cc3a76 | 126 | struct obstack *obstack) |
9219021c DC |
127 | { |
128 | struct using_direct *current; | |
fe978cb0 | 129 | struct using_direct *newobj; |
791244be | 130 | |
9219021c DC |
131 | /* Has it already been added? */ |
132 | ||
27aa8d6a | 133 | for (current = using_directives; current != NULL; current = current->next) |
9219021c | 134 | { |
32019081 JK |
135 | int ix; |
136 | const char *param; | |
137 | ||
70c622a3 JK |
138 | if (strcmp (current->import_src, src) != 0) |
139 | continue; | |
140 | if (strcmp (current->import_dest, dest) != 0) | |
141 | continue; | |
142 | if ((alias == NULL && current->alias != NULL) | |
143 | || (alias != NULL && current->alias == NULL) | |
144 | || (alias != NULL && current->alias != NULL | |
145 | && strcmp (alias, current->alias) != 0)) | |
146 | continue; | |
147 | if ((declaration == NULL && current->declaration != NULL) | |
148 | || (declaration != NULL && current->declaration == NULL) | |
149 | || (declaration != NULL && current->declaration != NULL | |
150 | && strcmp (declaration, current->declaration) != 0)) | |
151 | continue; | |
152 | ||
32019081 JK |
153 | /* Compare the contents of EXCLUDES. */ |
154 | for (ix = 0; VEC_iterate (const_char_ptr, excludes, ix, param); ix++) | |
155 | if (current->excludes[ix] == NULL | |
156 | || strcmp (param, current->excludes[ix]) != 0) | |
157 | break; | |
158 | if (ix < VEC_length (const_char_ptr, excludes) | |
159 | || current->excludes[ix] != NULL) | |
160 | continue; | |
161 | ||
70c622a3 JK |
162 | /* Parameters exactly match CURRENT. */ |
163 | return; | |
9219021c DC |
164 | } |
165 | ||
fe978cb0 | 166 | newobj = obstack_alloc (obstack, (sizeof (*newobj) |
32019081 | 167 | + (VEC_length (const_char_ptr, excludes) |
fe978cb0 PA |
168 | * sizeof (*newobj->excludes)))); |
169 | memset (newobj, 0, sizeof (*newobj)); | |
c0cc3a76 | 170 | |
12aaed36 TT |
171 | if (copy_names) |
172 | { | |
fe978cb0 PA |
173 | newobj->import_src = obstack_copy0 (obstack, src, strlen (src)); |
174 | newobj->import_dest = obstack_copy0 (obstack, dest, strlen (dest)); | |
12aaed36 TT |
175 | } |
176 | else | |
177 | { | |
fe978cb0 PA |
178 | newobj->import_src = src; |
179 | newobj->import_dest = dest; | |
12aaed36 | 180 | } |
794684b6 | 181 | |
12aaed36 | 182 | if (alias != NULL && copy_names) |
fe978cb0 | 183 | newobj->alias = obstack_copy0 (obstack, alias, strlen (alias)); |
12aaed36 | 184 | else |
fe978cb0 | 185 | newobj->alias = alias; |
c0cc3a76 | 186 | |
12aaed36 | 187 | if (declaration != NULL && copy_names) |
fe978cb0 | 188 | newobj->declaration = obstack_copy0 (obstack, |
10f0c4bb | 189 | declaration, strlen (declaration)); |
12aaed36 | 190 | else |
fe978cb0 | 191 | newobj->declaration = declaration; |
13387711 | 192 | |
fe978cb0 PA |
193 | memcpy (newobj->excludes, VEC_address (const_char_ptr, excludes), |
194 | VEC_length (const_char_ptr, excludes) * sizeof (*newobj->excludes)); | |
195 | newobj->excludes[VEC_length (const_char_ptr, excludes)] = NULL; | |
32019081 | 196 | |
fe978cb0 PA |
197 | newobj->next = using_directives; |
198 | using_directives = newobj; | |
9219021c DC |
199 | } |
200 | ||
9219021c DC |
201 | /* Test whether or not NAMESPACE looks like it mentions an anonymous |
202 | namespace; return nonzero if so. */ | |
203 | ||
204 | int | |
59da4d04 | 205 | cp_is_in_anonymous (const char *symbol_name) |
9219021c | 206 | { |
59da4d04 | 207 | return (strstr (symbol_name, CP_ANONYMOUS_NAMESPACE_STR) |
9219021c DC |
208 | != NULL); |
209 | } | |
210 | ||
6f27419a | 211 | /* Look up NAME in DOMAIN in BLOCK's static block and in global blocks. |
d5ff0482 | 212 | If IS_IN_ANONYMOUS is nonzero, the symbol in question is located |
6f27419a | 213 | within an anonymous namespace. */ |
34ef8452 DE |
214 | |
215 | static struct symbol * | |
6f27419a | 216 | cp_basic_lookup_symbol (const char *name, const struct block *block, |
d5ff0482 | 217 | const domain_enum domain, int is_in_anonymous) |
34ef8452 | 218 | { |
6f27419a | 219 | struct symbol *sym; |
34ef8452 DE |
220 | |
221 | sym = lookup_symbol_in_static_block (name, block, domain); | |
222 | if (sym != NULL) | |
223 | return sym; | |
224 | ||
d5ff0482 | 225 | if (is_in_anonymous) |
34ef8452 DE |
226 | { |
227 | /* Symbols defined in anonymous namespaces have external linkage | |
228 | but should be treated as local to a single file nonetheless. | |
229 | So we only search the current file's global block. */ | |
230 | ||
231 | const struct block *global_block = block_global_block (block); | |
791244be | 232 | |
34ef8452 DE |
233 | if (global_block != NULL) |
234 | sym = lookup_symbol_in_block (name, global_block, domain); | |
235 | } | |
236 | else | |
237 | { | |
238 | sym = lookup_global_symbol (name, block, domain); | |
239 | } | |
240 | ||
6f27419a DE |
241 | return sym; |
242 | } | |
243 | ||
244 | /* Search bare symbol NAME in DOMAIN in BLOCK. | |
1994afbf DE |
245 | NAME is guaranteed to not have any scope (no "::") in its name, though |
246 | if for example NAME is a template spec then "::" may appear in the | |
247 | argument list. | |
248 | If LANGDEF is non-NULL then try to lookup NAME as a primitive type in | |
249 | that language. Normally we wouldn't need LANGDEF but fortran also uses | |
250 | this code. | |
6f27419a DE |
251 | If SEARCH is non-zero then see if we can determine "this" from BLOCK, and |
252 | if so then also search for NAME in that class. */ | |
253 | ||
254 | static struct symbol * | |
1994afbf DE |
255 | cp_lookup_bare_symbol (const struct language_defn *langdef, |
256 | const char *name, const struct block *block, | |
6f27419a DE |
257 | const domain_enum domain, int search) |
258 | { | |
259 | struct symbol *sym; | |
260 | ||
261 | /* Note: We can't do a simple assert for ':' not being in NAME because | |
262 | ':' may be in the args of a template spec. This isn't intended to be | |
263 | a complete test, just cheap and documentary. */ | |
264 | if (strchr (name, '<') == NULL && strchr (name, '(') == NULL) | |
265 | gdb_assert (strchr (name, ':') == NULL); | |
266 | ||
267 | sym = lookup_symbol_in_static_block (name, block, domain); | |
268 | if (sym != NULL) | |
269 | return sym; | |
270 | ||
1994afbf DE |
271 | /* If we didn't find a definition for a builtin type in the static block, |
272 | search for it now. This is actually the right thing to do and can be | |
273 | a massive performance win. E.g., when debugging a program with lots of | |
274 | shared libraries we could search all of them only to find out the | |
275 | builtin type isn't defined in any of them. This is common for types | |
276 | like "void". */ | |
277 | if (langdef != NULL && domain == VAR_DOMAIN) | |
278 | { | |
279 | struct gdbarch *gdbarch; | |
280 | ||
281 | if (block == NULL) | |
282 | gdbarch = target_gdbarch (); | |
283 | else | |
284 | gdbarch = block_gdbarch (block); | |
285 | sym = language_lookup_primitive_type_as_symbol (langdef, gdbarch, name); | |
286 | if (sym != NULL) | |
287 | return sym; | |
288 | } | |
289 | ||
6f27419a | 290 | sym = lookup_global_symbol (name, block, domain); |
34ef8452 DE |
291 | if (sym != NULL) |
292 | return sym; | |
293 | ||
294 | if (search) | |
295 | { | |
fe978cb0 | 296 | struct symbol *lang_this; |
6f27419a | 297 | struct type *type; |
34ef8452 | 298 | |
fe978cb0 PA |
299 | lang_this = lookup_language_this (language_def (language_cplus), block); |
300 | if (lang_this == NULL) | |
6f27419a | 301 | return NULL; |
34ef8452 | 302 | |
fe978cb0 | 303 | type = check_typedef (TYPE_TARGET_TYPE (SYMBOL_TYPE (lang_this))); |
6f27419a DE |
304 | /* If TYPE_NAME is NULL, abandon trying to find this symbol. |
305 | This can happen for lambda functions compiled with clang++, | |
306 | which outputs no name for the container class. */ | |
307 | if (TYPE_NAME (type) == NULL) | |
308 | return NULL; | |
34ef8452 | 309 | |
d5ff0482 | 310 | /* Look for symbol NAME in this class. */ |
6f27419a DE |
311 | sym = cp_lookup_nested_symbol (type, name, block); |
312 | } | |
34ef8452 | 313 | |
6f27419a DE |
314 | return sym; |
315 | } | |
34ef8452 | 316 | |
6f27419a DE |
317 | /* Search NAME in DOMAIN in all static blocks, and then in all baseclasses. |
318 | BLOCK specifies the context in which to perform the search. | |
319 | NAME is guaranteed to have scope (contain "::") and PREFIX_LEN specifies | |
d5ff0482 | 320 | the length of the entire scope of NAME (up to, but not including, the last |
6f27419a | 321 | "::". |
34ef8452 | 322 | |
6f27419a DE |
323 | Note: At least in the case of Fortran, which also uses this code, there |
324 | may be no text after the last "::". */ | |
34ef8452 | 325 | |
6f27419a DE |
326 | static struct symbol * |
327 | cp_search_static_and_baseclasses (const char *name, | |
328 | const struct block *block, | |
329 | const domain_enum domain, | |
96553a0c DE |
330 | unsigned int prefix_len, |
331 | int is_in_anonymous) | |
6f27419a DE |
332 | { |
333 | struct symbol *sym; | |
334 | char *klass, *nested; | |
335 | struct cleanup *cleanup; | |
336 | struct symbol *klass_sym; | |
337 | struct type *klass_type; | |
34ef8452 | 338 | |
6f27419a DE |
339 | /* The test here uses <= instead of < because Fortran also uses this, |
340 | and the module.exp testcase will pass "modmany::" for NAME here. */ | |
341 | gdb_assert (prefix_len + 2 <= strlen (name)); | |
342 | gdb_assert (name[prefix_len + 1] == ':'); | |
34ef8452 | 343 | |
6f27419a | 344 | /* Find the name of the class and the name of the method, variable, etc. */ |
34ef8452 | 345 | |
6f27419a DE |
346 | /* The class name is everything up to and including PREFIX_LEN. */ |
347 | klass = savestring (name, prefix_len); | |
348 | ||
349 | /* The rest of the name is everything else past the initial scope | |
350 | operator. */ | |
351 | nested = xstrdup (name + prefix_len + 2); | |
352 | ||
353 | /* Add cleanups to free memory for these strings. */ | |
354 | cleanup = make_cleanup (xfree, klass); | |
355 | make_cleanup (xfree, nested); | |
356 | ||
357 | /* Lookup a class named KLASS. If none is found, there is nothing | |
13ce9222 DE |
358 | more that can be done. KLASS could be a namespace, so always look |
359 | in VAR_DOMAIN. This works for classes too because of | |
360 | symbol_matches_domain (which should be replaced with something else, | |
361 | but it's what we have today). */ | |
362 | klass_sym = lookup_global_symbol (klass, block, VAR_DOMAIN); | |
6f27419a DE |
363 | if (klass_sym == NULL) |
364 | { | |
34ef8452 | 365 | do_cleanups (cleanup); |
6f27419a | 366 | return NULL; |
34ef8452 | 367 | } |
6f27419a DE |
368 | klass_type = SYMBOL_TYPE (klass_sym); |
369 | ||
370 | /* Look for a symbol named NESTED in this class. | |
371 | The caller is assumed to have already have done a basic lookup of NAME. | |
372 | So we pass zero for BASIC_LOOKUP to cp_lookup_nested_symbol_1 here. */ | |
96553a0c DE |
373 | sym = cp_lookup_nested_symbol_1 (klass_type, nested, name, block, 0, |
374 | is_in_anonymous); | |
34ef8452 | 375 | |
6f27419a | 376 | do_cleanups (cleanup); |
34ef8452 DE |
377 | return sym; |
378 | } | |
379 | ||
aff410f1 | 380 | /* Look up NAME in the C++ namespace NAMESPACE. Other arguments are |
8dea366b | 381 | as in cp_lookup_symbol_nonlocal. If SEARCH is non-zero, search |
6f27419a DE |
382 | through base classes for a matching symbol. |
383 | ||
384 | Note: Part of the complexity is because NAME may itself specify scope. | |
385 | Part of the complexity is also because this handles the case where | |
386 | there is no scoping in which case we also try looking in the class of | |
387 | "this" if we can compute it. */ | |
8540c487 SW |
388 | |
389 | static struct symbol * | |
fe978cb0 | 390 | cp_lookup_symbol_in_namespace (const char *the_namespace, const char *name, |
6f27419a DE |
391 | const struct block *block, |
392 | const domain_enum domain, int search) | |
8540c487 | 393 | { |
d2763117 | 394 | char *concatenated_name = NULL; |
6f27419a DE |
395 | int is_in_anonymous; |
396 | unsigned int prefix_len; | |
397 | struct symbol *sym; | |
c5504eaf | 398 | |
fe978cb0 | 399 | if (the_namespace[0] != '\0') |
d2763117 | 400 | { |
fe978cb0 | 401 | concatenated_name = alloca (strlen (the_namespace) + 2 |
d2763117 | 402 | + strlen (name) + 1); |
fe978cb0 | 403 | strcpy (concatenated_name, the_namespace); |
8540c487 SW |
404 | strcat (concatenated_name, "::"); |
405 | strcat (concatenated_name, name); | |
d2763117 | 406 | name = concatenated_name; |
8540c487 | 407 | } |
d2763117 | 408 | |
6f27419a DE |
409 | prefix_len = cp_entire_prefix_len (name); |
410 | if (prefix_len == 0) | |
1994afbf | 411 | return cp_lookup_bare_symbol (NULL, name, block, domain, search); |
6f27419a DE |
412 | |
413 | /* This would be simpler if we just called cp_lookup_nested_symbol | |
414 | at this point. But that would require first looking up the containing | |
415 | class/namespace. Since we're only searching static and global blocks | |
416 | there's often no need to first do that lookup. */ | |
417 | ||
fe978cb0 PA |
418 | is_in_anonymous |
419 | = the_namespace[0] != '\0' && cp_is_in_anonymous (the_namespace); | |
6f27419a DE |
420 | sym = cp_basic_lookup_symbol (name, block, domain, is_in_anonymous); |
421 | if (sym != NULL) | |
422 | return sym; | |
423 | ||
424 | if (search) | |
96553a0c DE |
425 | sym = cp_search_static_and_baseclasses (name, block, domain, prefix_len, |
426 | is_in_anonymous); | |
6f27419a DE |
427 | |
428 | return sym; | |
8540c487 SW |
429 | } |
430 | ||
d5ff0482 | 431 | /* Used for cleanups to reset the "searched" flag in case of an error. */ |
b14e635e SW |
432 | |
433 | static void | |
434 | reset_directive_searched (void *data) | |
435 | { | |
436 | struct using_direct *direct = data; | |
437 | direct->searched = 0; | |
438 | } | |
439 | ||
aff410f1 MS |
440 | /* Search for NAME by applying all import statements belonging to |
441 | BLOCK which are applicable in SCOPE. If DECLARATION_ONLY the | |
442 | search is restricted to using declarations. | |
13387711 SW |
443 | Example: |
444 | ||
aff410f1 | 445 | namespace A { |
13387711 SW |
446 | int x; |
447 | } | |
448 | using A::x; | |
449 | ||
aff410f1 MS |
450 | If SEARCH_PARENTS the search will include imports which are |
451 | applicable in parents of SCOPE. | |
b14e635e SW |
452 | Example: |
453 | ||
aff410f1 | 454 | namespace A { |
b14e635e | 455 | using namespace X; |
aff410f1 | 456 | namespace B { |
b14e635e SW |
457 | using namespace Y; |
458 | } | |
459 | } | |
460 | ||
aff410f1 MS |
461 | If SCOPE is "A::B" and SEARCH_PARENTS is true the imports of |
462 | namespaces X and Y will be considered. If SEARCH_PARENTS is false | |
4bd0864e DE |
463 | only the import of Y is considered. |
464 | ||
465 | SEARCH_SCOPE_FIRST is an internal implementation detail: Callers must | |
466 | pass 0 for it. Internally we pass 1 when recursing. */ | |
8540c487 | 467 | |
9a80057a | 468 | static struct symbol * |
55accf4a DE |
469 | cp_lookup_symbol_via_imports (const char *scope, |
470 | const char *name, | |
471 | const struct block *block, | |
472 | const domain_enum domain, | |
4bd0864e | 473 | const int search_scope_first, |
55accf4a DE |
474 | const int declaration_only, |
475 | const int search_parents) | |
8540c487 | 476 | { |
b14e635e | 477 | struct using_direct *current; |
13387711 | 478 | struct symbol *sym = NULL; |
8540c487 | 479 | int len; |
b14e635e SW |
480 | int directive_match; |
481 | struct cleanup *searched_cleanup; | |
8540c487 | 482 | |
4bd0864e DE |
483 | /* First, try to find the symbol in the given namespace if requested. */ |
484 | if (search_scope_first) | |
aff410f1 | 485 | sym = cp_lookup_symbol_in_namespace (scope, name, |
8dea366b | 486 | block, domain, 1); |
791244be | 487 | |
8540c487 SW |
488 | if (sym != NULL) |
489 | return sym; | |
490 | ||
aff410f1 MS |
491 | /* Go through the using directives. If any of them add new names to |
492 | the namespace we're searching in, see if we can find a match by | |
493 | applying them. */ | |
8540c487 SW |
494 | |
495 | for (current = block_using (block); | |
496 | current != NULL; | |
497 | current = current->next) | |
498 | { | |
32019081 JK |
499 | const char **excludep; |
500 | ||
b14e635e SW |
501 | len = strlen (current->import_dest); |
502 | directive_match = (search_parents | |
61012eef | 503 | ? (startswith (scope, current->import_dest) |
b14e635e | 504 | && (len == 0 |
aff410f1 MS |
505 | || scope[len] == ':' |
506 | || scope[len] == '\0')) | |
b14e635e | 507 | : strcmp (scope, current->import_dest) == 0); |
8540c487 | 508 | |
aff410f1 MS |
509 | /* If the import destination is the current scope or one of its |
510 | ancestors then it is applicable. */ | |
b14e635e | 511 | if (directive_match && !current->searched) |
8540c487 | 512 | { |
a1d705ee TT |
513 | /* Mark this import as searched so that the recursive call |
514 | does not search it again. */ | |
515 | current->searched = 1; | |
516 | searched_cleanup = make_cleanup (reset_directive_searched, | |
517 | current); | |
518 | ||
519 | /* If there is an import of a single declaration, compare the | |
520 | imported declaration (after optional renaming by its alias) | |
521 | with the sought out name. If there is a match pass | |
522 | current->import_src as NAMESPACE to direct the search | |
523 | towards the imported namespace. */ | |
524 | if (current->declaration | |
525 | && strcmp (name, current->alias | |
526 | ? current->alias : current->declaration) == 0) | |
527 | sym = cp_lookup_symbol_in_namespace (current->import_src, | |
528 | current->declaration, | |
8dea366b | 529 | block, domain, 1); |
a1d705ee TT |
530 | |
531 | /* If this is a DECLARATION_ONLY search or a symbol was found | |
532 | or this import statement was an import declaration, the | |
533 | search of this import is complete. */ | |
534 | if (declaration_only || sym != NULL || current->declaration) | |
535 | { | |
536 | current->searched = 0; | |
537 | discard_cleanups (searched_cleanup); | |
538 | ||
539 | if (sym != NULL) | |
540 | return sym; | |
541 | ||
542 | continue; | |
543 | } | |
544 | ||
545 | /* Do not follow CURRENT if NAME matches its EXCLUDES. */ | |
546 | for (excludep = current->excludes; *excludep; excludep++) | |
547 | if (strcmp (name, *excludep) == 0) | |
548 | break; | |
549 | if (*excludep) | |
550 | { | |
551 | discard_cleanups (searched_cleanup); | |
552 | continue; | |
553 | } | |
554 | ||
555 | if (current->alias != NULL | |
556 | && strcmp (name, current->alias) == 0) | |
557 | /* If the import is creating an alias and the alias matches | |
558 | the sought name. Pass current->import_src as the NAME to | |
559 | direct the search towards the aliased namespace. */ | |
560 | { | |
561 | sym = cp_lookup_symbol_in_namespace (scope, | |
562 | current->import_src, | |
8dea366b | 563 | block, domain, 1); |
a1d705ee TT |
564 | } |
565 | else if (current->alias == NULL) | |
566 | { | |
567 | /* If this import statement creates no alias, pass | |
568 | current->inner as NAMESPACE to direct the search | |
569 | towards the imported namespace. */ | |
55accf4a DE |
570 | sym = cp_lookup_symbol_via_imports (current->import_src, |
571 | name, block, | |
4bd0864e | 572 | domain, 1, 0, 0); |
a1d705ee TT |
573 | } |
574 | current->searched = 0; | |
575 | discard_cleanups (searched_cleanup); | |
576 | ||
577 | if (sym != NULL) | |
578 | return sym; | |
8540c487 SW |
579 | } |
580 | } | |
581 | ||
582 | return NULL; | |
583 | } | |
584 | ||
d5ff0482 | 585 | /* Helper function that searches an array of symbols for one named NAME. */ |
34eaf542 TT |
586 | |
587 | static struct symbol * | |
aff410f1 MS |
588 | search_symbol_list (const char *name, int num, |
589 | struct symbol **syms) | |
34eaf542 TT |
590 | { |
591 | int i; | |
592 | ||
593 | /* Maybe we should store a dictionary in here instead. */ | |
594 | for (i = 0; i < num; ++i) | |
595 | { | |
596 | if (strcmp (name, SYMBOL_NATURAL_NAME (syms[i])) == 0) | |
597 | return syms[i]; | |
598 | } | |
599 | return NULL; | |
600 | } | |
601 | ||
55accf4a | 602 | /* Like cp_lookup_symbol_via_imports, but if BLOCK is a function, it |
34eaf542 TT |
603 | searches through the template parameters of the function and the |
604 | function's type. */ | |
605 | ||
606 | struct symbol * | |
607 | cp_lookup_symbol_imports_or_template (const char *scope, | |
608 | const char *name, | |
609 | const struct block *block, | |
610 | const domain_enum domain) | |
611 | { | |
612 | struct symbol *function = BLOCK_FUNCTION (block); | |
cc485e62 DE |
613 | struct symbol *result; |
614 | ||
615 | if (symbol_lookup_debug) | |
616 | { | |
617 | fprintf_unfiltered (gdb_stdlog, | |
618 | "cp_lookup_symbol_imports_or_template" | |
619 | " (%s, %s, %s, %s)\n", | |
620 | scope, name, host_address_to_string (block), | |
621 | domain_name (domain)); | |
622 | } | |
34eaf542 TT |
623 | |
624 | if (function != NULL && SYMBOL_LANGUAGE (function) == language_cplus) | |
625 | { | |
34eaf542 TT |
626 | /* Search the function's template parameters. */ |
627 | if (SYMBOL_IS_CPLUS_TEMPLATE_FUNCTION (function)) | |
628 | { | |
791244be | 629 | struct template_symbol *templ |
aff410f1 | 630 | = (struct template_symbol *) function; |
34eaf542 TT |
631 | |
632 | result = search_symbol_list (name, | |
633 | templ->n_template_arguments, | |
634 | templ->template_arguments); | |
635 | if (result != NULL) | |
cc485e62 DE |
636 | { |
637 | if (symbol_lookup_debug) | |
638 | { | |
639 | fprintf_unfiltered (gdb_stdlog, | |
640 | "cp_lookup_symbol_imports_or_template" | |
641 | " (...) = %s\n", | |
642 | host_address_to_string (result)); | |
643 | } | |
644 | return result; | |
645 | } | |
34eaf542 TT |
646 | } |
647 | ||
648 | /* Search the template parameters of the function's defining | |
649 | context. */ | |
650 | if (SYMBOL_NATURAL_NAME (function)) | |
651 | { | |
652 | struct type *context; | |
653 | char *name_copy = xstrdup (SYMBOL_NATURAL_NAME (function)); | |
654 | struct cleanup *cleanups = make_cleanup (xfree, name_copy); | |
655 | const struct language_defn *lang = language_def (language_cplus); | |
08be3fe3 | 656 | struct gdbarch *arch = symbol_arch (function); |
34eaf542 TT |
657 | const struct block *parent = BLOCK_SUPERBLOCK (block); |
658 | ||
659 | while (1) | |
660 | { | |
34eaf542 TT |
661 | unsigned int prefix_len = cp_entire_prefix_len (name_copy); |
662 | ||
663 | if (prefix_len == 0) | |
664 | context = NULL; | |
665 | else | |
666 | { | |
667 | name_copy[prefix_len] = '\0'; | |
aff410f1 MS |
668 | context = lookup_typename (lang, arch, |
669 | name_copy, | |
670 | parent, 1); | |
34eaf542 TT |
671 | } |
672 | ||
673 | if (context == NULL) | |
674 | break; | |
675 | ||
aff410f1 MS |
676 | result |
677 | = search_symbol_list (name, | |
678 | TYPE_N_TEMPLATE_ARGUMENTS (context), | |
679 | TYPE_TEMPLATE_ARGUMENTS (context)); | |
34eaf542 | 680 | if (result != NULL) |
c27e16e3 TT |
681 | { |
682 | do_cleanups (cleanups); | |
cc485e62 DE |
683 | if (symbol_lookup_debug) |
684 | { | |
685 | fprintf_unfiltered (gdb_stdlog, | |
686 | "cp_lookup_symbol_imports_or_template" | |
687 | " (...) = %s\n", | |
688 | host_address_to_string (result)); | |
689 | } | |
c27e16e3 TT |
690 | return result; |
691 | } | |
34eaf542 TT |
692 | } |
693 | ||
694 | do_cleanups (cleanups); | |
695 | } | |
696 | } | |
697 | ||
4bd0864e | 698 | result = cp_lookup_symbol_via_imports (scope, name, block, domain, 0, 1, 1); |
cc485e62 DE |
699 | if (symbol_lookup_debug) |
700 | { | |
701 | fprintf_unfiltered (gdb_stdlog, | |
702 | "cp_lookup_symbol_imports_or_template (...) = %s\n", | |
703 | result != NULL | |
704 | ? host_address_to_string (result) : "NULL"); | |
705 | } | |
706 | return result; | |
34eaf542 TT |
707 | } |
708 | ||
f953163f DE |
709 | /* Search for NAME by applying relevant import statements belonging to BLOCK |
710 | and its parents. SCOPE is the namespace scope of the context in which the | |
711 | search is being evaluated. */ | |
712 | ||
713 | static struct symbol * | |
714 | cp_lookup_symbol_via_all_imports (const char *scope, const char *name, | |
715 | const struct block *block, | |
716 | const domain_enum domain) | |
717 | { | |
718 | struct symbol *sym; | |
719 | ||
720 | while (block != NULL) | |
721 | { | |
722 | sym = cp_lookup_symbol_via_imports (scope, name, block, domain, 0, 0, 1); | |
723 | if (sym) | |
724 | return sym; | |
725 | ||
726 | block = BLOCK_SUPERBLOCK (block); | |
727 | } | |
728 | ||
729 | return NULL; | |
730 | } | |
731 | ||
791244be DE |
732 | /* Searches for NAME in the current namespace, and by applying |
733 | relevant import statements belonging to BLOCK and its parents. | |
734 | SCOPE is the namespace scope of the context in which the search is | |
735 | being evaluated. */ | |
8540c487 | 736 | |
f953163f | 737 | struct symbol * |
8540c487 SW |
738 | cp_lookup_symbol_namespace (const char *scope, |
739 | const char *name, | |
8540c487 | 740 | const struct block *block, |
13387711 | 741 | const domain_enum domain) |
8540c487 SW |
742 | { |
743 | struct symbol *sym; | |
cc485e62 DE |
744 | |
745 | if (symbol_lookup_debug) | |
746 | { | |
747 | fprintf_unfiltered (gdb_stdlog, | |
748 | "cp_lookup_symbol_namespace (%s, %s, %s, %s)\n", | |
749 | scope, name, host_address_to_string (block), | |
750 | domain_name (domain)); | |
751 | } | |
752 | ||
13387711 | 753 | /* First, try to find the symbol in the given namespace. */ |
f953163f | 754 | sym = cp_lookup_symbol_in_namespace (scope, name, block, domain, 1); |
8540c487 | 755 | |
f953163f DE |
756 | /* Search for name in namespaces imported to this and parent blocks. */ |
757 | if (sym == NULL) | |
758 | sym = cp_lookup_symbol_via_all_imports (scope, name, block, domain); | |
8540c487 | 759 | |
cc485e62 DE |
760 | if (symbol_lookup_debug) |
761 | { | |
762 | fprintf_unfiltered (gdb_stdlog, | |
f953163f DE |
763 | "cp_lookup_symbol_namespace (...) = %s\n", |
764 | sym != NULL ? host_address_to_string (sym) : "NULL"); | |
cc485e62 | 765 | } |
f953163f | 766 | return sym; |
1fcb5155 DC |
767 | } |
768 | ||
769 | /* Lookup NAME at namespace scope (or, in C terms, in static and | |
770 | global variables). SCOPE is the namespace that the current | |
771 | function is defined within; only consider namespaces whose length | |
772 | is at least SCOPE_LEN. Other arguments are as in | |
773 | cp_lookup_symbol_nonlocal. | |
774 | ||
775 | For example, if we're within a function A::B::f and looking for a | |
3882f37a | 776 | symbol x, this will get called with NAME = "x", SCOPE = "A::B", and |
1fcb5155 DC |
777 | SCOPE_LEN = 0. It then calls itself with NAME and SCOPE the same, |
778 | but with SCOPE_LEN = 1. And then it calls itself with NAME and | |
779 | SCOPE the same, but with SCOPE_LEN = 4. This third call looks for | |
780 | "A::B::x"; if it doesn't find it, then the second call looks for | |
781 | "A::x", and if that call fails, then the first call looks for | |
782 | "x". */ | |
783 | ||
784 | static struct symbol * | |
1994afbf DE |
785 | lookup_namespace_scope (const struct language_defn *langdef, |
786 | const char *name, | |
1fcb5155 DC |
787 | const struct block *block, |
788 | const domain_enum domain, | |
1fcb5155 DC |
789 | const char *scope, |
790 | int scope_len) | |
791 | { | |
fe978cb0 | 792 | char *the_namespace; |
1fcb5155 DC |
793 | |
794 | if (scope[scope_len] != '\0') | |
795 | { | |
796 | /* Recursively search for names in child namespaces first. */ | |
797 | ||
798 | struct symbol *sym; | |
799 | int new_scope_len = scope_len; | |
800 | ||
801 | /* If the current scope is followed by "::", skip past that. */ | |
802 | if (new_scope_len != 0) | |
803 | { | |
804 | gdb_assert (scope[new_scope_len] == ':'); | |
805 | new_scope_len += 2; | |
806 | } | |
807 | new_scope_len += cp_find_first_component (scope + new_scope_len); | |
1994afbf | 808 | sym = lookup_namespace_scope (langdef, name, block, domain, |
aff410f1 | 809 | scope, new_scope_len); |
1fcb5155 DC |
810 | if (sym != NULL) |
811 | return sym; | |
812 | } | |
813 | ||
814 | /* Okay, we didn't find a match in our children, so look for the | |
1994afbf DE |
815 | name in the current namespace. |
816 | ||
817 | If we there is no scope and we know we have a bare symbol, then short | |
818 | circuit everything and call cp_lookup_bare_symbol directly. | |
819 | This isn't an optimization, rather it allows us to pass LANGDEF which | |
820 | is needed for primitive type lookup. The test doesn't have to be | |
821 | perfect: if NAME is a bare symbol that our test doesn't catch (e.g., a | |
822 | template symbol with "::" in the argument list) then | |
823 | cp_lookup_symbol_in_namespace will catch it. */ | |
824 | ||
825 | if (scope_len == 0 && strchr (name, ':') == NULL) | |
826 | return cp_lookup_bare_symbol (langdef, name, block, domain, 1); | |
1fcb5155 | 827 | |
fe978cb0 PA |
828 | the_namespace = alloca (scope_len + 1); |
829 | strncpy (the_namespace, scope, scope_len); | |
830 | the_namespace[scope_len] = '\0'; | |
831 | return cp_lookup_symbol_in_namespace (the_namespace, name, | |
8dea366b | 832 | block, domain, 1); |
1fcb5155 DC |
833 | } |
834 | ||
56286edf DE |
835 | /* The C++-specific version of name lookup for static and global |
836 | names. This makes sure that names get looked for in all namespaces | |
837 | that are in scope. NAME is the natural name of the symbol that | |
838 | we're looking for, BLOCK is the block that we're searching within, | |
839 | DOMAIN says what kind of symbols we're looking for. */ | |
840 | ||
841 | struct symbol * | |
f606139a DE |
842 | cp_lookup_symbol_nonlocal (const struct language_defn *langdef, |
843 | const char *name, | |
56286edf DE |
844 | const struct block *block, |
845 | const domain_enum domain) | |
846 | { | |
847 | struct symbol *sym; | |
848 | const char *scope = block_scope (block); | |
849 | ||
cc485e62 DE |
850 | if (symbol_lookup_debug) |
851 | { | |
852 | fprintf_unfiltered (gdb_stdlog, | |
853 | "cp_lookup_symbol_non_local" | |
854 | " (%s, %s (scope %s), %s)\n", | |
855 | name, host_address_to_string (block), scope, | |
856 | domain_name (domain)); | |
857 | } | |
858 | ||
f953163f DE |
859 | /* First, try to find the symbol in the given namespace, and all |
860 | containing namespaces. */ | |
1994afbf | 861 | sym = lookup_namespace_scope (langdef, name, block, domain, scope, 0); |
56286edf | 862 | |
f953163f DE |
863 | /* Search for name in namespaces imported to this and parent blocks. */ |
864 | if (sym == NULL) | |
865 | sym = cp_lookup_symbol_via_all_imports (scope, name, block, domain); | |
866 | ||
cc485e62 DE |
867 | if (symbol_lookup_debug) |
868 | { | |
869 | fprintf_unfiltered (gdb_stdlog, | |
870 | "cp_lookup_symbol_nonlocal (...) = %s\n", | |
871 | sym != NULL ? host_address_to_string (sym) : "NULL"); | |
872 | } | |
873 | return sym; | |
56286edf DE |
874 | } |
875 | ||
f7e3ecae KS |
876 | /* Search through the base classes of PARENT_TYPE for a base class |
877 | named NAME and return its type. If not found, return NULL. */ | |
878 | ||
879 | struct type * | |
a07e3e18 | 880 | cp_find_type_baseclass_by_name (struct type *parent_type, const char *name) |
f7e3ecae KS |
881 | { |
882 | int i; | |
883 | ||
884 | CHECK_TYPEDEF (parent_type); | |
885 | for (i = 0; i < TYPE_N_BASECLASSES (parent_type); ++i) | |
886 | { | |
887 | struct type *type = check_typedef (TYPE_BASECLASS (parent_type, i)); | |
888 | const char *base_name = TYPE_BASECLASS_NAME (parent_type, i); | |
889 | ||
890 | if (base_name == NULL) | |
891 | continue; | |
892 | ||
893 | if (streq (base_name, name)) | |
894 | return type; | |
895 | ||
a07e3e18 | 896 | type = cp_find_type_baseclass_by_name (type, name); |
f7e3ecae KS |
897 | if (type != NULL) |
898 | return type; | |
899 | } | |
900 | ||
901 | return NULL; | |
902 | } | |
903 | ||
8dea366b KS |
904 | /* Search through the base classes of PARENT_TYPE for a symbol named |
905 | NAME in block BLOCK. */ | |
906 | ||
907 | static struct symbol * | |
908 | find_symbol_in_baseclass (struct type *parent_type, const char *name, | |
96553a0c | 909 | const struct block *block, int is_in_anonymous) |
8dea366b KS |
910 | { |
911 | int i; | |
912 | struct symbol *sym; | |
913 | struct cleanup *cleanup; | |
914 | char *concatenated_name; | |
915 | ||
916 | sym = NULL; | |
917 | concatenated_name = NULL; | |
918 | cleanup = make_cleanup (free_current_contents, &concatenated_name); | |
791244be | 919 | |
8dea366b KS |
920 | for (i = 0; i < TYPE_N_BASECLASSES (parent_type); ++i) |
921 | { | |
922 | size_t len; | |
69fc87c2 | 923 | struct type *base_type = TYPE_BASECLASS (parent_type, i); |
8dea366b KS |
924 | const char *base_name = TYPE_BASECLASS_NAME (parent_type, i); |
925 | ||
926 | if (base_name == NULL) | |
927 | continue; | |
928 | ||
8dea366b KS |
929 | len = strlen (base_name) + 2 + strlen (name) + 1; |
930 | concatenated_name = xrealloc (concatenated_name, len); | |
931 | xsnprintf (concatenated_name, len, "%s::%s", base_name, name); | |
8dea366b | 932 | |
6f27419a | 933 | sym = cp_lookup_nested_symbol_1 (base_type, name, concatenated_name, |
96553a0c | 934 | block, 1, is_in_anonymous); |
69fc87c2 DE |
935 | if (sym != NULL) |
936 | break; | |
8dea366b KS |
937 | } |
938 | ||
939 | do_cleanups (cleanup); | |
0c2e6019 | 940 | return sym; |
5c4e30ca DC |
941 | } |
942 | ||
6f27419a DE |
943 | /* Helper function to look up NESTED_NAME in CONTAINER_TYPE within the |
944 | context of BLOCK. | |
d5ff0482 | 945 | NESTED_NAME may have scope ("::"). |
6f27419a DE |
946 | CONTAINER_TYPE needn't have been "check_typedef'd" yet. |
947 | CONCATENATED_NAME is the fully scoped spelling of NESTED_NAME, it is | |
948 | passed as an argument so that callers can control how space for it is | |
949 | allocated. | |
950 | If BASIC_LOOKUP is non-zero then perform a basic lookup of | |
96553a0c DE |
951 | CONCATENATED_NAME. See cp_basic_lookup_symbol for details. |
952 | If IS_IN_ANONYMOUS is non-zero then CONCATENATED_NAME is in an anonymous | |
953 | namespace. */ | |
6f27419a DE |
954 | |
955 | static struct symbol * | |
956 | cp_lookup_nested_symbol_1 (struct type *container_type, | |
957 | const char *nested_name, | |
958 | const char *concatenated_name, | |
959 | const struct block *block, | |
96553a0c | 960 | int basic_lookup, int is_in_anonymous) |
6f27419a | 961 | { |
6f27419a DE |
962 | struct symbol *sym; |
963 | ||
964 | /* NOTE: carlton/2003-11-10: We don't treat C++ class members | |
965 | of classes like, say, data or function members. Instead, | |
966 | they're just represented by symbols whose names are | |
967 | qualified by the name of the surrounding class. This is | |
968 | just like members of namespaces; in particular, | |
969 | cp_basic_lookup_symbol works when looking them up. */ | |
970 | ||
971 | if (basic_lookup) | |
972 | { | |
973 | sym = cp_basic_lookup_symbol (concatenated_name, block, VAR_DOMAIN, | |
974 | is_in_anonymous); | |
975 | if (sym != NULL) | |
976 | return sym; | |
977 | } | |
978 | ||
979 | /* Now search all static file-level symbols. We have to do this for things | |
980 | like typedefs in the class. We do not try to guess any imported | |
981 | namespace as even the fully specified namespace search is already not | |
982 | C++ compliant and more assumptions could make it too magic. */ | |
983 | ||
984 | /* First search in this symtab, what we want is possibly there. */ | |
985 | sym = lookup_symbol_in_static_block (concatenated_name, block, VAR_DOMAIN); | |
986 | if (sym != NULL) | |
987 | return sym; | |
988 | ||
989 | /* Nope. We now have to search all static blocks in all objfiles, | |
990 | even if block != NULL, because there's no guarantees as to which | |
96553a0c DE |
991 | symtab the symbol we want is in. Except for symbols defined in |
992 | anonymous namespaces should be treated as local to a single file, | |
993 | which we just searched. */ | |
994 | if (!is_in_anonymous) | |
995 | { | |
996 | sym = lookup_static_symbol (concatenated_name, VAR_DOMAIN); | |
997 | if (sym != NULL) | |
998 | return sym; | |
999 | } | |
6f27419a DE |
1000 | |
1001 | /* If this is a class with baseclasses, search them next. */ | |
1002 | CHECK_TYPEDEF (container_type); | |
1003 | if (TYPE_N_BASECLASSES (container_type) > 0) | |
1004 | { | |
96553a0c DE |
1005 | sym = find_symbol_in_baseclass (container_type, nested_name, block, |
1006 | is_in_anonymous); | |
6f27419a DE |
1007 | if (sym != NULL) |
1008 | return sym; | |
1009 | } | |
1010 | ||
1011 | return NULL; | |
1012 | } | |
1013 | ||
50af5481 | 1014 | /* Look up a symbol named NESTED_NAME that is nested inside the C++ |
79c2c32d | 1015 | class or namespace given by PARENT_TYPE, from within the context |
05a6c3c8 | 1016 | given by BLOCK. Return NULL if there is no such nested symbol. */ |
79c2c32d | 1017 | |
50af5481 JK |
1018 | struct symbol * |
1019 | cp_lookup_nested_symbol (struct type *parent_type, | |
1020 | const char *nested_name, | |
1021 | const struct block *block) | |
79c2c32d | 1022 | { |
05a6c3c8 | 1023 | /* type_name_no_tag_or_error provides better error reporting using the |
d8228535 JK |
1024 | original type. */ |
1025 | struct type *saved_parent_type = parent_type; | |
1026 | ||
1027 | CHECK_TYPEDEF (parent_type); | |
1028 | ||
cc485e62 DE |
1029 | if (symbol_lookup_debug) |
1030 | { | |
1031 | const char *type_name = type_name_no_tag (saved_parent_type); | |
1032 | ||
1033 | fprintf_unfiltered (gdb_stdlog, | |
1034 | "cp_lookup_nested_symbol (%s, %s, %s)\n", | |
1035 | type_name != NULL ? type_name : "unnamed", | |
1036 | nested_name, host_address_to_string (block)); | |
1037 | } | |
1038 | ||
79c2c32d DC |
1039 | switch (TYPE_CODE (parent_type)) |
1040 | { | |
63d06c5c | 1041 | case TYPE_CODE_STRUCT: |
79c2c32d | 1042 | case TYPE_CODE_NAMESPACE: |
48e32051 | 1043 | case TYPE_CODE_UNION: |
3d567982 | 1044 | case TYPE_CODE_ENUM: |
530e8392 KB |
1045 | /* NOTE: Handle modules here as well, because Fortran is re-using the C++ |
1046 | specific code to lookup nested symbols in modules, by calling the | |
1047 | function pointer la_lookup_symbol_nonlocal, which ends up here. */ | |
1048 | case TYPE_CODE_MODULE: | |
79c2c32d | 1049 | { |
08850b56 | 1050 | int size; |
d8228535 | 1051 | const char *parent_name = type_name_no_tag_or_error (saved_parent_type); |
6f27419a | 1052 | struct symbol *sym; |
41f62f39 | 1053 | char *concatenated_name; |
96553a0c | 1054 | int is_in_anonymous; |
c5504eaf | 1055 | |
08850b56 PM |
1056 | size = strlen (parent_name) + 2 + strlen (nested_name) + 1; |
1057 | concatenated_name = alloca (size); | |
1058 | xsnprintf (concatenated_name, size, "%s::%s", | |
6f27419a | 1059 | parent_name, nested_name); |
96553a0c | 1060 | is_in_anonymous = cp_is_in_anonymous (concatenated_name); |
6f27419a DE |
1061 | |
1062 | sym = cp_lookup_nested_symbol_1 (parent_type, nested_name, | |
96553a0c DE |
1063 | concatenated_name, block, 1, |
1064 | is_in_anonymous); | |
41f62f39 | 1065 | |
cc485e62 DE |
1066 | if (symbol_lookup_debug) |
1067 | { | |
1068 | fprintf_unfiltered (gdb_stdlog, | |
1069 | "cp_lookup_nested_symbol (...) = %s\n", | |
1070 | sym != NULL | |
1071 | ? host_address_to_string (sym) : "NULL"); | |
1072 | } | |
1073 | return sym; | |
79c2c32d | 1074 | } |
bb869963 SDJ |
1075 | |
1076 | case TYPE_CODE_FUNC: | |
1077 | case TYPE_CODE_METHOD: | |
cc485e62 DE |
1078 | if (symbol_lookup_debug) |
1079 | { | |
1080 | fprintf_unfiltered (gdb_stdlog, | |
1081 | "cp_lookup_nested_symbol (...) = NULL" | |
1082 | " (func/method)\n"); | |
1083 | } | |
bb869963 SDJ |
1084 | return NULL; |
1085 | ||
79c2c32d DC |
1086 | default: |
1087 | internal_error (__FILE__, __LINE__, | |
50af5481 | 1088 | _("cp_lookup_nested_symbol called " |
3e43a32a | 1089 | "on a non-aggregate type.")); |
79c2c32d DC |
1090 | } |
1091 | } | |
1092 | ||
b368761e DC |
1093 | /* The C++-version of lookup_transparent_type. */ |
1094 | ||
1095 | /* FIXME: carlton/2004-01-16: The problem that this is trying to | |
1096 | address is that, unfortunately, sometimes NAME is wrong: it may not | |
1097 | include the name of namespaces enclosing the type in question. | |
b021a221 | 1098 | lookup_transparent_type gets called when the type in question |
b368761e DC |
1099 | is a declaration, and we're trying to find its definition; but, for |
1100 | declarations, our type name deduction mechanism doesn't work. | |
1101 | There's nothing we can do to fix this in general, I think, in the | |
1102 | absence of debug information about namespaces (I've filed PR | |
1103 | gdb/1511 about this); until such debug information becomes more | |
1104 | prevalent, one heuristic which sometimes looks is to search for the | |
1105 | definition in namespaces containing the current namespace. | |
1106 | ||
1107 | We should delete this functions once the appropriate debug | |
1108 | information becomes more widespread. (GCC 3.4 will be the first | |
1109 | released version of GCC with such information.) */ | |
1110 | ||
1111 | struct type * | |
1112 | cp_lookup_transparent_type (const char *name) | |
1113 | { | |
1114 | /* First, try the honest way of looking up the definition. */ | |
1115 | struct type *t = basic_lookup_transparent_type (name); | |
1116 | const char *scope; | |
1117 | ||
1118 | if (t != NULL) | |
1119 | return t; | |
1120 | ||
1121 | /* If that doesn't work and we're within a namespace, look there | |
1122 | instead. */ | |
1123 | scope = block_scope (get_selected_block (0)); | |
1124 | ||
1125 | if (scope[0] == '\0') | |
1126 | return NULL; | |
1127 | ||
1128 | return cp_lookup_transparent_type_loop (name, scope, 0); | |
1129 | } | |
1130 | ||
b021a221 MS |
1131 | /* Lookup the type definition associated to NAME in namespaces/classes |
1132 | containing SCOPE whose name is strictly longer than LENGTH. LENGTH | |
1133 | must be the index of the start of a component of SCOPE. */ | |
b368761e DC |
1134 | |
1135 | static struct type * | |
aff410f1 MS |
1136 | cp_lookup_transparent_type_loop (const char *name, |
1137 | const char *scope, | |
b368761e DC |
1138 | int length) |
1139 | { | |
1198ecbe | 1140 | int scope_length = length + cp_find_first_component (scope + length); |
b368761e DC |
1141 | char *full_name; |
1142 | ||
1143 | /* If the current scope is followed by "::", look in the next | |
1144 | component. */ | |
1145 | if (scope[scope_length] == ':') | |
1146 | { | |
1147 | struct type *retval | |
aff410f1 MS |
1148 | = cp_lookup_transparent_type_loop (name, scope, |
1149 | scope_length + 2); | |
c5504eaf | 1150 | |
b368761e DC |
1151 | if (retval != NULL) |
1152 | return retval; | |
1153 | } | |
1154 | ||
1155 | full_name = alloca (scope_length + 2 + strlen (name) + 1); | |
1156 | strncpy (full_name, scope, scope_length); | |
1157 | strncpy (full_name + scope_length, "::", 2); | |
1158 | strcpy (full_name + scope_length + 2, name); | |
1159 | ||
1160 | return basic_lookup_transparent_type (full_name); | |
1161 | } | |
1162 | ||
0c2e6019 TT |
1163 | /* This used to do something but was removed when it became |
1164 | obsolete. */ | |
5c4e30ca DC |
1165 | |
1166 | static void | |
1167 | maintenance_cplus_namespace (char *args, int from_tty) | |
1168 | { | |
0c2e6019 | 1169 | printf_unfiltered (_("The `maint namespace' command was removed.\n")); |
5c4e30ca DC |
1170 | } |
1171 | ||
2c0b251b PA |
1172 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
1173 | extern initialize_file_ftype _initialize_cp_namespace; | |
1174 | ||
5c4e30ca DC |
1175 | void |
1176 | _initialize_cp_namespace (void) | |
1177 | { | |
0c2e6019 TT |
1178 | struct cmd_list_element *cmd; |
1179 | ||
1180 | cmd = add_cmd ("namespace", class_maintenance, | |
1181 | maintenance_cplus_namespace, | |
1182 | _("Deprecated placeholder for removed functionality."), | |
1183 | &maint_cplus_cmd_list); | |
1184 | deprecate_cmd (cmd, NULL); | |
1fcb5155 | 1185 | } |