Mercurial > projects > ldc
annotate dmd/dsymbol.c @ 156:ccd07d9f2ce9 trunk
[svn r172] moving all IR state previously stored in Dsymbol into IrDsymbol and a Dsymbol->IrDsymbol map
author | ChristianK |
---|---|
date | Thu, 01 May 2008 13:05:53 +0200 |
parents | 0e28624814e8 |
children | 5acec6b2eef8 |
rev | line source |
---|---|
1 | 1 |
2 // Compiler implementation of the D programming language | |
3 // Copyright (c) 1999-2007 by Digital Mars | |
4 // All Rights Reserved | |
5 // written by Walter Bright | |
6 // http://www.digitalmars.com | |
7 // License for redistribution is by either the Artistic License | |
8 // in artistic.txt, or the GNU General Public License in gnu.txt. | |
9 // See the included readme.txt for details. | |
10 | |
11 #include <stdio.h> | |
12 #include <string.h> | |
13 #include <assert.h> | |
14 | |
15 #include "mem.h" | |
16 | |
17 #include "mars.h" | |
18 #include "dsymbol.h" | |
19 #include "aggregate.h" | |
20 #include "identifier.h" | |
21 #include "module.h" | |
22 #include "mtype.h" | |
23 #include "expression.h" | |
24 #include "statement.h" | |
25 #include "declaration.h" | |
26 #include "id.h" | |
27 #include "scope.h" | |
28 #include "init.h" | |
29 #include "import.h" | |
30 #include "template.h" | |
31 | |
32 #include "../gen/enums.h" | |
33 | |
34 /****************************** Dsymbol ******************************/ | |
35 | |
36 Dsymbol::Dsymbol() | |
37 { | |
38 //printf("Dsymbol::Dsymbol(%p)\n", this); | |
39 this->ident = NULL; | |
40 this->c_ident = NULL; | |
41 this->parent = NULL; | |
42 this->csym = NULL; | |
43 this->isym = NULL; | |
44 this->loc = 0; | |
45 this->comment = NULL; | |
136
0e28624814e8
[svn r140] did a lot of the work towards being able to pass multiple modules on the command line. not complete yet though
lindquist
parents:
102
diff
changeset
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46 |
1 | 47 this->llvmInternal = LLVMnone; |
48 this->llvmInternal1 = NULL; | |
49 this->llvmInternal2 = NULL; | |
50 } | |
51 | |
52 Dsymbol::Dsymbol(Identifier *ident) | |
53 { | |
54 //printf("Dsymbol::Dsymbol(%p, ident)\n", this); | |
55 this->ident = ident; | |
56 this->c_ident = NULL; | |
57 this->parent = NULL; | |
58 this->csym = NULL; | |
59 this->isym = NULL; | |
60 this->loc = 0; | |
61 this->comment = NULL; | |
136
0e28624814e8
[svn r140] did a lot of the work towards being able to pass multiple modules on the command line. not complete yet though
lindquist
parents:
102
diff
changeset
|
62 |
1 | 63 this->llvmInternal = LLVMnone; |
64 this->llvmInternal1 = NULL; | |
65 this->llvmInternal2 = NULL; | |
66 } | |
67 | |
68 int Dsymbol::equals(Object *o) | |
69 { Dsymbol *s; | |
70 | |
71 if (this == o) | |
72 return TRUE; | |
73 s = (Dsymbol *)(o); | |
74 if (s && ident->equals(s->ident)) | |
75 return TRUE; | |
76 return FALSE; | |
77 } | |
78 | |
79 /************************************** | |
80 * Copy the syntax. | |
81 * Used for template instantiations. | |
82 * If s is NULL, allocate the new object, otherwise fill it in. | |
83 */ | |
84 | |
85 Dsymbol *Dsymbol::syntaxCopy(Dsymbol *s) | |
86 { | |
87 print(); | |
88 printf("%s %s\n", kind(), toChars()); | |
89 assert(0); | |
90 return NULL; | |
91 } | |
92 | |
93 /************************************** | |
94 * Determine if this symbol is only one. | |
95 * Returns: | |
96 * FALSE, *ps = NULL: There are 2 or more symbols | |
97 * TRUE, *ps = NULL: There are zero symbols | |
98 * TRUE, *ps = symbol: The one and only one symbol | |
99 */ | |
100 | |
101 int Dsymbol::oneMember(Dsymbol **ps) | |
102 { | |
103 //printf("Dsymbol::oneMember()\n"); | |
104 *ps = this; | |
105 return TRUE; | |
106 } | |
107 | |
108 /***************************************** | |
109 * Same as Dsymbol::oneMember(), but look at an array of Dsymbols. | |
110 */ | |
111 | |
112 int Dsymbol::oneMembers(Array *members, Dsymbol **ps) | |
113 { | |
114 //printf("Dsymbol::oneMembers() %d\n", members ? members->dim : 0); | |
115 Dsymbol *s = NULL; | |
116 | |
117 if (members) | |
118 { | |
119 for (int i = 0; i < members->dim; i++) | |
120 { Dsymbol *sx = (Dsymbol *)members->data[i]; | |
121 | |
122 int x = sx->oneMember(ps); | |
123 //printf("\t[%d] kind %s = %d, s = %p\n", i, sx->kind(), x, *ps); | |
124 if (!x) | |
125 { | |
126 //printf("\tfalse 1\n"); | |
127 assert(*ps == NULL); | |
128 return FALSE; | |
129 } | |
130 if (*ps) | |
131 { | |
132 if (s) // more than one symbol | |
133 { *ps = NULL; | |
134 //printf("\tfalse 2\n"); | |
135 return FALSE; | |
136 } | |
137 s = *ps; | |
138 } | |
139 } | |
140 } | |
141 *ps = s; // s is the one symbol, NULL if none | |
142 //printf("\ttrue\n"); | |
143 return TRUE; | |
144 } | |
145 | |
146 /***************************************** | |
147 * Is Dsymbol a variable that contains pointers? | |
148 */ | |
149 | |
150 int Dsymbol::hasPointers() | |
151 { | |
152 //printf("Dsymbol::hasPointers() %s\n", toChars()); | |
153 return 0; | |
154 } | |
155 | |
156 char *Dsymbol::toChars() | |
157 { | |
158 return ident ? ident->toChars() : (char *)"__anonymous"; | |
159 } | |
160 | |
161 char *Dsymbol::toPrettyChars() | |
162 { Dsymbol *p; | |
163 char *s; | |
164 char *q; | |
165 size_t len; | |
166 | |
167 //printf("Dsymbol::toPrettyChars() '%s'\n", toChars()); | |
168 if (!parent) | |
169 return toChars(); | |
170 | |
171 len = 0; | |
172 for (p = this; p; p = p->parent) | |
173 len += strlen(p->toChars()) + 1; | |
174 | |
175 s = (char *)mem.malloc(len); | |
176 q = s + len - 1; | |
177 *q = 0; | |
178 for (p = this; p; p = p->parent) | |
179 { | |
180 char *t = p->toChars(); | |
181 len = strlen(t); | |
182 q -= len; | |
183 memcpy(q, t, len); | |
184 if (q == s) | |
185 break; | |
186 q--; | |
187 *q = '.'; | |
188 } | |
189 return s; | |
190 } | |
191 | |
192 char *Dsymbol::locToChars() | |
193 { | |
194 OutBuffer buf; | |
195 char *p; | |
196 | |
197 Module *m = getModule(); | |
198 | |
199 if (m && m->srcfile) | |
200 loc.filename = m->srcfile->toChars(); | |
201 return loc.toChars(); | |
202 } | |
203 | |
204 char *Dsymbol::kind() | |
205 { | |
206 return "symbol"; | |
207 } | |
208 | |
209 /********************************* | |
210 * If this symbol is really an alias for another, | |
211 * return that other. | |
212 */ | |
213 | |
214 Dsymbol *Dsymbol::toAlias() | |
215 { | |
216 return this; | |
217 } | |
218 | |
219 Dsymbol *Dsymbol::toParent() | |
220 { | |
221 return parent ? parent->pastMixin() : NULL; | |
222 } | |
223 | |
224 Dsymbol *Dsymbol::pastMixin() | |
225 { | |
226 Dsymbol *s = this; | |
227 | |
228 //printf("Dsymbol::pastMixin() %s\n", toChars()); | |
229 while (s && s->isTemplateMixin()) | |
230 s = s->parent; | |
231 return s; | |
232 } | |
233 | |
234 /********************************** | |
235 * Use this instead of toParent() when looking for the | |
236 * 'this' pointer of the enclosing function/class. | |
237 */ | |
238 | |
239 Dsymbol *Dsymbol::toParent2() | |
240 { | |
241 Dsymbol *s = parent; | |
242 while (s && s->isTemplateInstance()) | |
243 s = s->parent; | |
244 return s; | |
245 } | |
246 | |
247 | |
248 int Dsymbol::isAnonymous() | |
249 { | |
250 return ident ? 0 : 1; | |
251 } | |
252 | |
253 void Dsymbol::semantic(Scope *sc) | |
254 { | |
255 error("%p has no semantic routine", this); | |
256 } | |
257 | |
258 void Dsymbol::semantic2(Scope *sc) | |
259 { | |
260 // Most Dsymbols have no further semantic analysis needed | |
261 } | |
262 | |
263 void Dsymbol::semantic3(Scope *sc) | |
264 { | |
265 // Most Dsymbols have no further semantic analysis needed | |
266 } | |
267 | |
268 void Dsymbol::inlineScan() | |
269 { | |
270 // Most Dsymbols have no further semantic analysis needed | |
271 } | |
272 | |
273 Dsymbol *Dsymbol::search(Loc loc, Identifier *ident, int flags) | |
274 { | |
275 //printf("Dsymbol::search(this=%p,%s, ident='%s')\n", this, toChars(), ident->toChars()); | |
276 return NULL; | |
277 } | |
278 | |
279 /*************************************** | |
280 * Search for identifier id as a member of 'this'. | |
281 * id may be a template instance. | |
282 * Returns: | |
283 * symbol found, NULL if not | |
284 */ | |
285 | |
286 Dsymbol *Dsymbol::searchX(Loc loc, Scope *sc, Identifier *id) | |
287 { | |
288 //printf("Dsymbol::searchX(this=%p,%s, ident='%s')\n", this, toChars(), ident->toChars()); | |
289 Dsymbol *s = toAlias(); | |
290 Dsymbol *sm; | |
291 | |
292 switch (id->dyncast()) | |
293 { | |
294 case DYNCAST_IDENTIFIER: | |
295 sm = s->search(loc, id, 0); | |
296 break; | |
297 | |
298 case DYNCAST_DSYMBOL: | |
299 { // It's a template instance | |
300 //printf("\ttemplate instance id\n"); | |
301 Dsymbol *st = (Dsymbol *)id; | |
302 TemplateInstance *ti = st->isTemplateInstance(); | |
303 id = ti->name; | |
304 sm = s->search(loc, id, 0); | |
305 if (!sm) | |
306 { error("template identifier %s is not a member of %s %s", | |
307 id->toChars(), s->kind(), s->toChars()); | |
308 return NULL; | |
309 } | |
310 sm = sm->toAlias(); | |
311 TemplateDeclaration *td = sm->isTemplateDeclaration(); | |
312 if (!td) | |
313 { | |
314 error("%s is not a template, it is a %s", id->toChars(), sm->kind()); | |
315 return NULL; | |
316 } | |
317 ti->tempdecl = td; | |
318 if (!ti->semanticdone) | |
319 ti->semantic(sc); | |
320 sm = ti->toAlias(); | |
321 break; | |
322 } | |
323 | |
324 default: | |
325 assert(0); | |
326 } | |
327 return sm; | |
328 } | |
329 | |
330 int Dsymbol::overloadInsert(Dsymbol *s) | |
331 { | |
332 //printf("Dsymbol::overloadInsert('%s')\n", s->toChars()); | |
333 return FALSE; | |
334 } | |
335 | |
336 void Dsymbol::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
337 { | |
338 buf->writestring(toChars()); | |
339 } | |
340 | |
341 unsigned Dsymbol::size(Loc loc) | |
342 { | |
343 error("Dsymbol '%s' has no size\n", toChars()); | |
344 return 0; | |
345 } | |
346 | |
347 int Dsymbol::isforwardRef() | |
348 { | |
349 return FALSE; | |
350 } | |
351 | |
352 AggregateDeclaration *Dsymbol::isThis() | |
353 { | |
354 return NULL; | |
355 } | |
356 | |
357 ClassDeclaration *Dsymbol::isClassMember() // are we a member of a class? | |
358 { | |
359 Dsymbol *parent = toParent(); | |
360 if (parent && parent->isClassDeclaration()) | |
361 return (ClassDeclaration *)parent; | |
362 return NULL; | |
363 } | |
364 | |
365 void Dsymbol::defineRef(Dsymbol *s) | |
366 { | |
367 assert(0); | |
368 } | |
369 | |
370 int Dsymbol::isExport() | |
371 { | |
372 return FALSE; | |
373 } | |
374 | |
375 int Dsymbol::isImportedSymbol() | |
376 { | |
377 return FALSE; | |
378 } | |
379 | |
380 int Dsymbol::isDeprecated() | |
381 { | |
382 return FALSE; | |
383 } | |
384 | |
385 LabelDsymbol *Dsymbol::isLabel() // is this a LabelDsymbol()? | |
386 { | |
387 return NULL; | |
388 } | |
389 | |
390 AggregateDeclaration *Dsymbol::isMember() // is this a member of an AggregateDeclaration? | |
391 { | |
392 Dsymbol *parent = toParent(); | |
393 return parent ? parent->isAggregateDeclaration() : NULL; | |
394 } | |
395 | |
396 Type *Dsymbol::getType() | |
397 { | |
398 return NULL; | |
399 } | |
400 | |
401 int Dsymbol::needThis() | |
402 { | |
403 return FALSE; | |
404 } | |
405 | |
406 int Dsymbol::addMember(Scope *sc, ScopeDsymbol *sd, int memnum) | |
407 { | |
408 //printf("Dsymbol::addMember('%s')\n", toChars()); | |
409 //printf("Dsymbol::addMember(this = %p, '%s' scopesym = '%s')\n", this, toChars(), sd->toChars()); | |
410 //printf("Dsymbol::addMember(this = %p, '%s' sd = %p, sd->symtab = %p)\n", this, toChars(), sd, sd->symtab); | |
411 parent = sd; | |
412 if (!isAnonymous()) // no name, so can't add it to symbol table | |
413 { | |
414 if (!sd->symtab->insert(this)) // if name is already defined | |
415 { | |
416 Dsymbol *s2; | |
417 | |
418 s2 = sd->symtab->lookup(ident); | |
419 if (!s2->overloadInsert(this)) | |
420 { | |
421 sd->multiplyDefined(0, this, s2); | |
422 } | |
423 } | |
424 if (sd->isAggregateDeclaration() || sd->isEnumDeclaration()) | |
425 { | |
426 if (ident == Id::__sizeof || ident == Id::alignof || ident == Id::mangleof) | |
427 error(".%s property cannot be redefined", ident->toChars()); | |
428 } | |
429 return 1; | |
430 } | |
431 return 0; | |
432 } | |
433 | |
434 void Dsymbol::error(const char *format, ...) | |
435 { | |
436 //printf("Dsymbol::error()\n"); | |
437 if (!global.gag) | |
438 { | |
439 char *p = locToChars(); | |
440 | |
441 if (*p) | |
442 fprintf(stdmsg, "%s: ", p); | |
443 mem.free(p); | |
444 | |
445 if (isAnonymous()) | |
446 fprintf(stdmsg, "%s ", kind()); | |
447 else | |
448 fprintf(stdmsg, "%s %s ", kind(), toPrettyChars()); | |
449 | |
450 va_list ap; | |
451 va_start(ap, format); | |
452 vfprintf(stdmsg, format, ap); | |
453 va_end(ap); | |
454 | |
455 fprintf(stdmsg, "\n"); | |
456 fflush(stdmsg); | |
457 } | |
458 global.errors++; | |
459 | |
460 //fatal(); | |
461 } | |
462 | |
463 void Dsymbol::error(Loc loc, const char *format, ...) | |
464 { | |
465 if (!global.gag) | |
466 { | |
467 char *p = loc.toChars(); | |
468 if (!*p) | |
469 p = locToChars(); | |
470 | |
471 if (*p) | |
472 fprintf(stdmsg, "%s: ", p); | |
473 mem.free(p); | |
474 | |
475 fprintf(stdmsg, "%s %s ", kind(), toPrettyChars()); | |
476 | |
477 va_list ap; | |
478 va_start(ap, format); | |
479 vfprintf(stdmsg, format, ap); | |
480 va_end(ap); | |
481 | |
482 fprintf(stdmsg, "\n"); | |
483 fflush(stdmsg); | |
484 } | |
485 | |
486 global.errors++; | |
487 | |
488 //fatal(); | |
489 } | |
490 | |
491 void Dsymbol::checkDeprecated(Loc loc, Scope *sc) | |
492 { | |
493 if (!global.params.useDeprecated && isDeprecated()) | |
494 { | |
495 // Don't complain if we're inside a deprecated symbol's scope | |
496 for (Dsymbol *sp = sc->parent; sp; sp = sp->parent) | |
497 { if (sp->isDeprecated()) | |
498 return; | |
499 } | |
500 | |
501 for (; sc; sc = sc->enclosing) | |
502 { | |
503 if (sc->scopesym && sc->scopesym->isDeprecated()) | |
504 return; | |
505 } | |
506 | |
507 error(loc, "is deprecated"); | |
508 } | |
509 } | |
510 | |
511 /********************************** | |
512 * Determine which Module a Dsymbol is in. | |
513 */ | |
514 | |
515 Module *Dsymbol::getModule() | |
516 { | |
517 Module *m; | |
518 Dsymbol *s; | |
519 | |
520 //printf("Dsymbol::getModule()\n"); | |
521 s = this; | |
522 while (s) | |
523 { | |
524 //printf("\ts = '%s'\n", s->toChars()); | |
525 m = s->isModule(); | |
526 if (m) | |
527 return m; | |
528 s = s->parent; | |
529 } | |
530 return NULL; | |
531 } | |
532 | |
533 /************************************* | |
534 */ | |
535 | |
536 enum PROT Dsymbol::prot() | |
537 { | |
538 return PROTpublic; | |
539 } | |
540 | |
541 /************************************* | |
542 * Do syntax copy of an array of Dsymbol's. | |
543 */ | |
544 | |
545 | |
546 Array *Dsymbol::arraySyntaxCopy(Array *a) | |
547 { | |
548 | |
549 Array *b = NULL; | |
550 if (a) | |
551 { | |
552 b = a->copy(); | |
553 for (int i = 0; i < b->dim; i++) | |
554 { | |
555 Dsymbol *s = (Dsymbol *)b->data[i]; | |
556 | |
557 s = s->syntaxCopy(NULL); | |
558 b->data[i] = (void *)s; | |
559 } | |
560 } | |
561 return b; | |
562 } | |
563 | |
564 | |
565 /**************************************** | |
566 * Add documentation comment to Dsymbol. | |
567 * Ignore NULL comments. | |
568 */ | |
569 | |
570 void Dsymbol::addComment(unsigned char *comment) | |
571 { | |
572 // if (comment) | |
573 // printf("adding comment '%s' to symbol %p '%s'\n", comment, this, toChars()); | |
574 | |
575 if (!this->comment) | |
576 this->comment = comment; | |
577 #if 1 | |
578 else if (comment && strcmp((char *)comment, (char *)this->comment)) | |
579 { // Concatenate the two | |
580 this->comment = Lexer::combineComments(this->comment, comment); | |
581 } | |
582 #endif | |
583 } | |
584 | |
585 | |
586 /********************************* ScopeDsymbol ****************************/ | |
587 | |
588 ScopeDsymbol::ScopeDsymbol() | |
589 : Dsymbol() | |
590 { | |
591 members = NULL; | |
592 symtab = NULL; | |
593 imports = NULL; | |
594 prots = NULL; | |
595 } | |
596 | |
597 ScopeDsymbol::ScopeDsymbol(Identifier *id) | |
598 : Dsymbol(id) | |
599 { | |
600 members = NULL; | |
601 symtab = NULL; | |
602 imports = NULL; | |
603 prots = NULL; | |
604 } | |
605 | |
606 Dsymbol *ScopeDsymbol::syntaxCopy(Dsymbol *s) | |
607 { | |
608 //printf("ScopeDsymbol::syntaxCopy('%s')\n", toChars()); | |
609 | |
610 ScopeDsymbol *sd; | |
611 if (s) | |
612 sd = (ScopeDsymbol *)s; | |
613 else | |
614 sd = new ScopeDsymbol(ident); | |
615 sd->members = arraySyntaxCopy(members); | |
616 return sd; | |
617 } | |
618 | |
619 Dsymbol *ScopeDsymbol::search(Loc loc, Identifier *ident, int flags) | |
620 { Dsymbol *s; | |
621 int i; | |
622 | |
623 //printf("%s->ScopeDsymbol::search(ident='%s', flags=x%x)\n", toChars(), ident->toChars(), flags); | |
624 // Look in symbols declared in this module | |
625 s = symtab ? symtab->lookup(ident) : NULL; | |
626 if (s) | |
627 { | |
628 //printf("\ts = '%s.%s'\n",toChars(),s->toChars()); | |
629 } | |
630 else if (imports) | |
631 { | |
632 // Look in imported modules | |
633 for (i = 0; i < imports->dim; i++) | |
634 { ScopeDsymbol *ss = (ScopeDsymbol *)imports->data[i]; | |
635 Dsymbol *s2; | |
636 | |
637 // If private import, don't search it | |
638 if (flags & 1 && prots[i] == PROTprivate) | |
639 continue; | |
640 | |
641 //printf("\tscanning import '%s', prots = %d, isModule = %p, isImport = %p\n", ss->toChars(), prots[i], ss->isModule(), ss->isImport()); | |
642 s2 = ss->search(loc, ident, ss->isModule() ? 1 : 0); | |
643 if (!s) | |
644 s = s2; | |
645 else if (s2 && s != s2) | |
646 { | |
647 if (s->toAlias() == s2->toAlias()) | |
648 { | |
649 if (s->isDeprecated()) | |
650 s = s2; | |
651 } | |
652 else | |
653 { | |
654 /* Two imports of the same module should be regarded as | |
655 * the same. | |
656 */ | |
657 Import *i1 = s->isImport(); | |
658 Import *i2 = s2->isImport(); | |
659 if (!(i1 && i2 && | |
660 (i1->mod == i2->mod || | |
661 (!i1->parent->isImport() && !i2->parent->isImport() && | |
662 i1->ident->equals(i2->ident)) | |
663 ) | |
664 ) | |
665 ) | |
666 { | |
667 ss->multiplyDefined(loc, s, s2); | |
668 break; | |
669 } | |
670 } | |
671 } | |
672 } | |
673 if (s) | |
674 { | |
675 Declaration *d = s->isDeclaration(); | |
676 if (d && d->protection == PROTprivate && !d->parent->isTemplateMixin()) | |
677 error("%s is private", d->toPrettyChars()); | |
678 } | |
679 } | |
680 return s; | |
681 } | |
682 | |
683 void ScopeDsymbol::importScope(ScopeDsymbol *s, enum PROT protection) | |
684 { | |
685 //printf("%s->ScopeDsymbol::importScope(%s, %d)\n", toChars(), s->toChars(), protection); | |
686 | |
687 // No circular or redundant import's | |
688 if (s != this) | |
689 { | |
690 if (!imports) | |
691 imports = new Array(); | |
692 else | |
693 { | |
694 for (int i = 0; i < imports->dim; i++) | |
695 { ScopeDsymbol *ss; | |
696 | |
697 ss = (ScopeDsymbol *) imports->data[i]; | |
698 if (ss == s) | |
699 { | |
700 if (protection > prots[i]) | |
701 prots[i] = protection; // upgrade access | |
702 return; | |
703 } | |
704 } | |
705 } | |
706 imports->push(s); | |
707 prots = (unsigned char *)mem.realloc(prots, imports->dim * sizeof(prots[0])); | |
708 prots[imports->dim - 1] = protection; | |
709 } | |
710 } | |
711 | |
712 int ScopeDsymbol::isforwardRef() | |
713 { | |
714 return (members == NULL); | |
715 } | |
716 | |
717 void ScopeDsymbol::defineRef(Dsymbol *s) | |
718 { | |
719 ScopeDsymbol *ss; | |
720 | |
721 ss = s->isScopeDsymbol(); | |
722 members = ss->members; | |
723 ss->members = NULL; | |
724 } | |
725 | |
726 void ScopeDsymbol::multiplyDefined(Loc loc, Dsymbol *s1, Dsymbol *s2) | |
727 { | |
728 #if 0 | |
729 printf("ScopeDsymbol::multiplyDefined()\n"); | |
730 printf("s1 = %p, '%s' kind = '%s', parent = %s\n", s1, s1->toChars(), s1->kind(), s1->parent ? s1->parent->toChars() : ""); | |
731 printf("s2 = %p, '%s' kind = '%s', parent = %s\n", s2, s2->toChars(), s2->kind(), s2->parent ? s2->parent->toChars() : ""); | |
732 #endif | |
733 if (loc.filename) | |
734 { ::error(loc, "%s at %s conflicts with %s at %s", | |
735 s1->toPrettyChars(), | |
736 s1->locToChars(), | |
737 s2->toPrettyChars(), | |
738 s2->locToChars()); | |
739 } | |
740 else | |
741 { | |
742 s1->error(loc, "conflicts with %s %s at %s", | |
743 s2->kind(), | |
744 s2->toPrettyChars(), | |
745 s2->locToChars()); | |
746 } | |
747 } | |
748 | |
749 Dsymbol *ScopeDsymbol::nameCollision(Dsymbol *s) | |
750 { | |
751 Dsymbol *sprev; | |
752 | |
753 // Look to see if we are defining a forward referenced symbol | |
754 | |
755 sprev = symtab->lookup(s->ident); | |
756 assert(sprev); | |
757 if (s->equals(sprev)) // if the same symbol | |
758 { | |
759 if (s->isforwardRef()) // if second declaration is a forward reference | |
760 return sprev; | |
761 if (sprev->isforwardRef()) | |
762 { | |
763 sprev->defineRef(s); // copy data from s into sprev | |
764 return sprev; | |
765 } | |
766 } | |
767 multiplyDefined(0, s, sprev); | |
768 return sprev; | |
769 } | |
770 | |
771 char *ScopeDsymbol::kind() | |
772 { | |
773 return "ScopeDsymbol"; | |
774 } | |
775 | |
776 | |
19 | 777 /******************************************* |
778 * Look for member of the form: | |
779 * const(MemberInfo)[] getMembers(string); | |
780 * Returns NULL if not found | |
781 */ | |
782 | |
783 #if V2 | |
784 FuncDeclaration *ScopeDsymbol::findGetMembers() | |
785 { | |
786 Dsymbol *s = search_function(this, Id::getmembers); | |
787 FuncDeclaration *fdx = s ? s->isFuncDeclaration() : NULL; | |
788 | |
789 #if 0 // Finish | |
790 static TypeFunction *tfgetmembers; | |
791 | |
792 if (!tfgetmembers) | |
793 { | |
794 Scope sc; | |
795 Arguments *arguments = new Arguments; | |
796 Arguments *arg = new Argument(STCin, Type::tchar->constOf()->arrayOf(), NULL, NULL); | |
797 arguments->push(arg); | |
798 | |
799 Type *tret = NULL; | |
800 tfgetmembers = new TypeFunction(arguments, tret, 0, LINKd); | |
801 tfgetmembers = (TypeFunction *)tfgetmembers->semantic(0, &sc); | |
802 } | |
803 if (fdx) | |
804 fdx = fdx->overloadExactMatch(tfgetmembers); | |
805 #endif | |
806 if (fdx && fdx->isVirtual()) | |
807 fdx = NULL; | |
808 | |
809 return fdx; | |
810 } | |
811 #endif | |
812 | |
813 | |
1 | 814 /****************************** WithScopeSymbol ******************************/ |
815 | |
816 WithScopeSymbol::WithScopeSymbol(WithStatement *withstate) | |
817 : ScopeDsymbol() | |
818 { | |
819 this->withstate = withstate; | |
820 } | |
821 | |
822 Dsymbol *WithScopeSymbol::search(Loc loc, Identifier *ident, int flags) | |
823 { | |
824 // Acts as proxy to the with class declaration | |
825 return withstate->exp->type->toDsymbol(NULL)->search(loc, ident, 0); | |
826 } | |
827 | |
828 /****************************** ArrayScopeSymbol ******************************/ | |
829 | |
830 ArrayScopeSymbol::ArrayScopeSymbol(Expression *e) | |
831 : ScopeDsymbol() | |
832 { | |
833 assert(e->op == TOKindex || e->op == TOKslice); | |
834 exp = e; | |
835 type = NULL; | |
836 td = NULL; | |
837 } | |
838 | |
839 ArrayScopeSymbol::ArrayScopeSymbol(TypeTuple *t) | |
840 : ScopeDsymbol() | |
841 { | |
842 exp = NULL; | |
843 type = t; | |
844 td = NULL; | |
845 } | |
846 | |
847 ArrayScopeSymbol::ArrayScopeSymbol(TupleDeclaration *s) | |
848 : ScopeDsymbol() | |
849 { | |
850 exp = NULL; | |
851 type = NULL; | |
852 td = s; | |
853 } | |
854 | |
855 Dsymbol *ArrayScopeSymbol::search(Loc loc, Identifier *ident, int flags) | |
856 { | |
857 //printf("ArrayScopeSymbol::search('%s', flags = %d)\n", ident->toChars(), flags); | |
858 if (ident == Id::length || ident == Id::dollar) | |
859 { VarDeclaration **pvar; | |
860 Expression *ce; | |
861 | |
862 L1: | |
863 | |
864 if (td) | |
865 { | |
866 VarDeclaration *v = new VarDeclaration(loc, Type::tsize_t, Id::dollar, NULL); | |
867 Expression *e = new IntegerExp(0, td->objects->dim, Type::tsize_t); | |
868 v->init = new ExpInitializer(0, e); | |
869 v->storage_class |= STCconst; | |
870 return v; | |
871 } | |
872 | |
873 if (type) | |
874 { | |
875 VarDeclaration *v = new VarDeclaration(loc, Type::tsize_t, Id::dollar, NULL); | |
876 Expression *e = new IntegerExp(0, type->arguments->dim, Type::tsize_t); | |
877 v->init = new ExpInitializer(0, e); | |
878 v->storage_class |= STCconst; | |
879 return v; | |
880 } | |
881 | |
882 if (exp->op == TOKindex) | |
883 { | |
884 IndexExp *ie = (IndexExp *)exp; | |
885 | |
886 pvar = &ie->lengthVar; | |
887 ce = ie->e1; | |
888 } | |
889 else if (exp->op == TOKslice) | |
890 { | |
891 SliceExp *se = (SliceExp *)exp; | |
892 | |
893 pvar = &se->lengthVar; | |
894 ce = se->e1; | |
895 } | |
896 else | |
897 return NULL; | |
898 | |
899 if (ce->op == TOKtype) | |
900 { | |
901 Type *t = ((TypeExp *)ce)->type; | |
902 if (t->ty == Ttuple) | |
903 { type = (TypeTuple *)t; | |
904 goto L1; | |
905 } | |
906 } | |
907 | |
908 if (!*pvar) | |
909 { | |
910 VarDeclaration *v = new VarDeclaration(loc, Type::tsize_t, Id::dollar, NULL); | |
911 | |
912 if (ce->op == TOKstring) | |
913 { /* It is for a string literal, so the | |
914 * length will be a const. | |
915 */ | |
916 Expression *e = new IntegerExp(0, ((StringExp *)ce)->len, Type::tsize_t); | |
917 v->init = new ExpInitializer(0, e); | |
918 v->storage_class |= STCconst; | |
919 } | |
920 else if (ce->op == TOKarrayliteral) | |
921 { /* It is for an array literal, so the | |
922 * length will be a const. | |
923 */ | |
924 Expression *e = new IntegerExp(0, ((ArrayLiteralExp *)ce)->elements->dim, Type::tsize_t); | |
925 v->init = new ExpInitializer(0, e); | |
926 v->storage_class |= STCconst; | |
927 } | |
928 else if (ce->op == TOKtuple) | |
929 { /* It is for an expression tuple, so the | |
930 * length will be a const. | |
931 */ | |
932 Expression *e = new IntegerExp(0, ((TupleExp *)ce)->exps->dim, Type::tsize_t); | |
933 v->init = new ExpInitializer(0, e); | |
934 v->storage_class |= STCconst; | |
935 } | |
936 *pvar = v; | |
937 } | |
938 return (*pvar); | |
939 } | |
940 return NULL; | |
941 } | |
942 | |
943 | |
944 /****************************** DsymbolTable ******************************/ | |
945 | |
946 DsymbolTable::DsymbolTable() | |
947 { | |
948 tab = new StringTable; | |
949 } | |
950 | |
951 DsymbolTable::~DsymbolTable() | |
952 { | |
953 delete tab; | |
954 } | |
955 | |
956 Dsymbol *DsymbolTable::lookup(Identifier *ident) | |
957 { StringValue *sv; | |
958 | |
959 #ifdef DEBUG | |
960 assert(ident); | |
961 assert(tab); | |
962 #endif | |
963 sv = tab->lookup((char*)ident->string, ident->len); | |
964 return (Dsymbol *)(sv ? sv->ptrvalue : NULL); | |
965 } | |
966 | |
967 Dsymbol *DsymbolTable::insert(Dsymbol *s) | |
968 { StringValue *sv; | |
969 Identifier *ident; | |
970 | |
971 //printf("DsymbolTable::insert(this = %p, '%s')\n", this, s->ident->toChars()); | |
972 ident = s->ident; | |
973 #ifdef DEBUG | |
974 assert(ident); | |
975 assert(tab); | |
976 #endif | |
977 sv = tab->insert(ident->toChars(), ident->len); | |
978 if (!sv) | |
979 return NULL; // already in table | |
980 sv->ptrvalue = s; | |
981 return s; | |
982 } | |
983 | |
984 Dsymbol *DsymbolTable::insert(Identifier *ident, Dsymbol *s) | |
985 { StringValue *sv; | |
986 | |
987 //printf("DsymbolTable::insert()\n"); | |
988 sv = tab->insert(ident->toChars(), ident->len); | |
989 if (!sv) | |
990 return NULL; // already in table | |
991 sv->ptrvalue = s; | |
992 return s; | |
993 } | |
994 | |
995 Dsymbol *DsymbolTable::update(Dsymbol *s) | |
996 { StringValue *sv; | |
997 Identifier *ident; | |
998 | |
999 ident = s->ident; | |
1000 sv = tab->update(ident->toChars(), ident->len); | |
1001 sv->ptrvalue = s; | |
1002 return s; | |
1003 } | |
1004 | |
1005 | |
1006 | |
1007 |