Mercurial > projects > ldc
annotate dmd/dsymbol.c @ 55:0ccfae271c45 trunk
[svn r59] Added support for C-style variadic functions. Currently only works on x86, x86-64 va_arg is broken in LLVM 2.1. PPC and PPC64 unknown.
Updates to runtime. Rebuild!
| author | lindquist |
|---|---|
| date | Wed, 24 Oct 2007 22:18:06 +0200 |
| parents | 788401029ecf |
| children | 5071469303d4 |
| 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; | |
| 46 this->llvmInternal = LLVMnone; | |
| 47 this->llvmInternal1 = NULL; | |
| 48 this->llvmInternal2 = NULL; | |
| 49 this->llvmValue = NULL; | |
|
55
0ccfae271c45
[svn r59] Added support for C-style variadic functions. Currently only works on x86, x86-64 va_arg is broken in LLVM 2.1. PPC and PPC64 unknown.
lindquist
parents:
19
diff
changeset
|
50 this->llvmDModule = NULL; |
| 1 | 51 } |
| 52 | |
| 53 Dsymbol::Dsymbol(Identifier *ident) | |
| 54 { | |
| 55 //printf("Dsymbol::Dsymbol(%p, ident)\n", this); | |
| 56 this->ident = ident; | |
| 57 this->c_ident = NULL; | |
| 58 this->parent = NULL; | |
| 59 this->csym = NULL; | |
| 60 this->isym = NULL; | |
| 61 this->loc = 0; | |
| 62 this->comment = NULL; | |
| 63 this->llvmInternal = LLVMnone; | |
| 64 this->llvmInternal1 = NULL; | |
| 65 this->llvmInternal2 = NULL; | |
| 66 this->llvmValue = NULL; | |
| 67 this->llvmDModule = NULL; | |
| 68 } | |
| 69 | |
| 70 int Dsymbol::equals(Object *o) | |
| 71 { Dsymbol *s; | |
| 72 | |
| 73 if (this == o) | |
| 74 return TRUE; | |
| 75 s = (Dsymbol *)(o); | |
| 76 if (s && ident->equals(s->ident)) | |
| 77 return TRUE; | |
| 78 return FALSE; | |
| 79 } | |
| 80 | |
| 81 /************************************** | |
| 82 * Copy the syntax. | |
| 83 * Used for template instantiations. | |
| 84 * If s is NULL, allocate the new object, otherwise fill it in. | |
| 85 */ | |
| 86 | |
| 87 Dsymbol *Dsymbol::syntaxCopy(Dsymbol *s) | |
| 88 { | |
| 89 print(); | |
| 90 printf("%s %s\n", kind(), toChars()); | |
| 91 assert(0); | |
| 92 return NULL; | |
| 93 } | |
| 94 | |
| 95 /************************************** | |
| 96 * Determine if this symbol is only one. | |
| 97 * Returns: | |
| 98 * FALSE, *ps = NULL: There are 2 or more symbols | |
| 99 * TRUE, *ps = NULL: There are zero symbols | |
| 100 * TRUE, *ps = symbol: The one and only one symbol | |
| 101 */ | |
| 102 | |
| 103 int Dsymbol::oneMember(Dsymbol **ps) | |
| 104 { | |
| 105 //printf("Dsymbol::oneMember()\n"); | |
| 106 *ps = this; | |
| 107 return TRUE; | |
| 108 } | |
| 109 | |
| 110 /***************************************** | |
| 111 * Same as Dsymbol::oneMember(), but look at an array of Dsymbols. | |
| 112 */ | |
| 113 | |
| 114 int Dsymbol::oneMembers(Array *members, Dsymbol **ps) | |
| 115 { | |
| 116 //printf("Dsymbol::oneMembers() %d\n", members ? members->dim : 0); | |
| 117 Dsymbol *s = NULL; | |
| 118 | |
| 119 if (members) | |
| 120 { | |
| 121 for (int i = 0; i < members->dim; i++) | |
| 122 { Dsymbol *sx = (Dsymbol *)members->data[i]; | |
| 123 | |
| 124 int x = sx->oneMember(ps); | |
| 125 //printf("\t[%d] kind %s = %d, s = %p\n", i, sx->kind(), x, *ps); | |
| 126 if (!x) | |
| 127 { | |
| 128 //printf("\tfalse 1\n"); | |
| 129 assert(*ps == NULL); | |
| 130 return FALSE; | |
| 131 } | |
| 132 if (*ps) | |
| 133 { | |
| 134 if (s) // more than one symbol | |
| 135 { *ps = NULL; | |
| 136 //printf("\tfalse 2\n"); | |
| 137 return FALSE; | |
| 138 } | |
| 139 s = *ps; | |
| 140 } | |
| 141 } | |
| 142 } | |
| 143 *ps = s; // s is the one symbol, NULL if none | |
| 144 //printf("\ttrue\n"); | |
| 145 return TRUE; | |
| 146 } | |
| 147 | |
| 148 /***************************************** | |
| 149 * Is Dsymbol a variable that contains pointers? | |
| 150 */ | |
| 151 | |
| 152 int Dsymbol::hasPointers() | |
| 153 { | |
| 154 //printf("Dsymbol::hasPointers() %s\n", toChars()); | |
| 155 return 0; | |
| 156 } | |
| 157 | |
| 158 char *Dsymbol::toChars() | |
| 159 { | |
| 160 return ident ? ident->toChars() : (char *)"__anonymous"; | |
| 161 } | |
| 162 | |
| 163 char *Dsymbol::toPrettyChars() | |
| 164 { Dsymbol *p; | |
| 165 char *s; | |
| 166 char *q; | |
| 167 size_t len; | |
| 168 | |
| 169 //printf("Dsymbol::toPrettyChars() '%s'\n", toChars()); | |
| 170 if (!parent) | |
| 171 return toChars(); | |
| 172 | |
| 173 len = 0; | |
| 174 for (p = this; p; p = p->parent) | |
| 175 len += strlen(p->toChars()) + 1; | |
| 176 | |
| 177 s = (char *)mem.malloc(len); | |
| 178 q = s + len - 1; | |
| 179 *q = 0; | |
| 180 for (p = this; p; p = p->parent) | |
| 181 { | |
| 182 char *t = p->toChars(); | |
| 183 len = strlen(t); | |
| 184 q -= len; | |
| 185 memcpy(q, t, len); | |
| 186 if (q == s) | |
| 187 break; | |
| 188 q--; | |
| 189 *q = '.'; | |
| 190 } | |
| 191 return s; | |
| 192 } | |
| 193 | |
| 194 char *Dsymbol::locToChars() | |
| 195 { | |
| 196 OutBuffer buf; | |
| 197 char *p; | |
| 198 | |
| 199 Module *m = getModule(); | |
| 200 | |
| 201 if (m && m->srcfile) | |
| 202 loc.filename = m->srcfile->toChars(); | |
| 203 return loc.toChars(); | |
| 204 } | |
| 205 | |
| 206 char *Dsymbol::kind() | |
| 207 { | |
| 208 return "symbol"; | |
| 209 } | |
| 210 | |
| 211 /********************************* | |
| 212 * If this symbol is really an alias for another, | |
| 213 * return that other. | |
| 214 */ | |
| 215 | |
| 216 Dsymbol *Dsymbol::toAlias() | |
| 217 { | |
| 218 return this; | |
| 219 } | |
| 220 | |
| 221 Dsymbol *Dsymbol::toParent() | |
| 222 { | |
| 223 return parent ? parent->pastMixin() : NULL; | |
| 224 } | |
| 225 | |
| 226 Dsymbol *Dsymbol::pastMixin() | |
| 227 { | |
| 228 Dsymbol *s = this; | |
| 229 | |
| 230 //printf("Dsymbol::pastMixin() %s\n", toChars()); | |
| 231 while (s && s->isTemplateMixin()) | |
| 232 s = s->parent; | |
| 233 return s; | |
| 234 } | |
| 235 | |
| 236 /********************************** | |
| 237 * Use this instead of toParent() when looking for the | |
| 238 * 'this' pointer of the enclosing function/class. | |
| 239 */ | |
| 240 | |
| 241 Dsymbol *Dsymbol::toParent2() | |
| 242 { | |
| 243 Dsymbol *s = parent; | |
| 244 while (s && s->isTemplateInstance()) | |
| 245 s = s->parent; | |
| 246 return s; | |
| 247 } | |
| 248 | |
| 249 | |
| 250 int Dsymbol::isAnonymous() | |
| 251 { | |
| 252 return ident ? 0 : 1; | |
| 253 } | |
| 254 | |
| 255 void Dsymbol::semantic(Scope *sc) | |
| 256 { | |
| 257 error("%p has no semantic routine", this); | |
| 258 } | |
| 259 | |
| 260 void Dsymbol::semantic2(Scope *sc) | |
| 261 { | |
| 262 // Most Dsymbols have no further semantic analysis needed | |
| 263 } | |
| 264 | |
| 265 void Dsymbol::semantic3(Scope *sc) | |
| 266 { | |
| 267 // Most Dsymbols have no further semantic analysis needed | |
| 268 } | |
| 269 | |
| 270 void Dsymbol::inlineScan() | |
| 271 { | |
| 272 // Most Dsymbols have no further semantic analysis needed | |
| 273 } | |
| 274 | |
| 275 Dsymbol *Dsymbol::search(Loc loc, Identifier *ident, int flags) | |
| 276 { | |
| 277 //printf("Dsymbol::search(this=%p,%s, ident='%s')\n", this, toChars(), ident->toChars()); | |
| 278 return NULL; | |
| 279 } | |
| 280 | |
| 281 /*************************************** | |
| 282 * Search for identifier id as a member of 'this'. | |
| 283 * id may be a template instance. | |
| 284 * Returns: | |
| 285 * symbol found, NULL if not | |
| 286 */ | |
| 287 | |
| 288 Dsymbol *Dsymbol::searchX(Loc loc, Scope *sc, Identifier *id) | |
| 289 { | |
| 290 //printf("Dsymbol::searchX(this=%p,%s, ident='%s')\n", this, toChars(), ident->toChars()); | |
| 291 Dsymbol *s = toAlias(); | |
| 292 Dsymbol *sm; | |
| 293 | |
| 294 switch (id->dyncast()) | |
| 295 { | |
| 296 case DYNCAST_IDENTIFIER: | |
| 297 sm = s->search(loc, id, 0); | |
| 298 break; | |
| 299 | |
| 300 case DYNCAST_DSYMBOL: | |
| 301 { // It's a template instance | |
| 302 //printf("\ttemplate instance id\n"); | |
| 303 Dsymbol *st = (Dsymbol *)id; | |
| 304 TemplateInstance *ti = st->isTemplateInstance(); | |
| 305 id = ti->name; | |
| 306 sm = s->search(loc, id, 0); | |
| 307 if (!sm) | |
| 308 { error("template identifier %s is not a member of %s %s", | |
| 309 id->toChars(), s->kind(), s->toChars()); | |
| 310 return NULL; | |
| 311 } | |
| 312 sm = sm->toAlias(); | |
| 313 TemplateDeclaration *td = sm->isTemplateDeclaration(); | |
| 314 if (!td) | |
| 315 { | |
| 316 error("%s is not a template, it is a %s", id->toChars(), sm->kind()); | |
| 317 return NULL; | |
| 318 } | |
| 319 ti->tempdecl = td; | |
| 320 if (!ti->semanticdone) | |
| 321 ti->semantic(sc); | |
| 322 sm = ti->toAlias(); | |
| 323 break; | |
| 324 } | |
| 325 | |
| 326 default: | |
| 327 assert(0); | |
| 328 } | |
| 329 return sm; | |
| 330 } | |
| 331 | |
| 332 int Dsymbol::overloadInsert(Dsymbol *s) | |
| 333 { | |
| 334 //printf("Dsymbol::overloadInsert('%s')\n", s->toChars()); | |
| 335 return FALSE; | |
| 336 } | |
| 337 | |
| 338 void Dsymbol::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 339 { | |
| 340 buf->writestring(toChars()); | |
| 341 } | |
| 342 | |
| 343 unsigned Dsymbol::size(Loc loc) | |
| 344 { | |
| 345 error("Dsymbol '%s' has no size\n", toChars()); | |
| 346 return 0; | |
| 347 } | |
| 348 | |
| 349 int Dsymbol::isforwardRef() | |
| 350 { | |
| 351 return FALSE; | |
| 352 } | |
| 353 | |
| 354 AggregateDeclaration *Dsymbol::isThis() | |
| 355 { | |
| 356 return NULL; | |
| 357 } | |
| 358 | |
| 359 ClassDeclaration *Dsymbol::isClassMember() // are we a member of a class? | |
| 360 { | |
| 361 Dsymbol *parent = toParent(); | |
| 362 if (parent && parent->isClassDeclaration()) | |
| 363 return (ClassDeclaration *)parent; | |
| 364 return NULL; | |
| 365 } | |
| 366 | |
| 367 void Dsymbol::defineRef(Dsymbol *s) | |
| 368 { | |
| 369 assert(0); | |
| 370 } | |
| 371 | |
| 372 int Dsymbol::isExport() | |
| 373 { | |
| 374 return FALSE; | |
| 375 } | |
| 376 | |
| 377 int Dsymbol::isImportedSymbol() | |
| 378 { | |
| 379 return FALSE; | |
| 380 } | |
| 381 | |
| 382 int Dsymbol::isDeprecated() | |
| 383 { | |
| 384 return FALSE; | |
| 385 } | |
| 386 | |
| 387 LabelDsymbol *Dsymbol::isLabel() // is this a LabelDsymbol()? | |
| 388 { | |
| 389 return NULL; | |
| 390 } | |
| 391 | |
| 392 AggregateDeclaration *Dsymbol::isMember() // is this a member of an AggregateDeclaration? | |
| 393 { | |
| 394 Dsymbol *parent = toParent(); | |
| 395 return parent ? parent->isAggregateDeclaration() : NULL; | |
| 396 } | |
| 397 | |
| 398 Type *Dsymbol::getType() | |
| 399 { | |
| 400 return NULL; | |
| 401 } | |
| 402 | |
| 403 int Dsymbol::needThis() | |
| 404 { | |
| 405 return FALSE; | |
| 406 } | |
| 407 | |
| 408 int Dsymbol::addMember(Scope *sc, ScopeDsymbol *sd, int memnum) | |
| 409 { | |
| 410 //printf("Dsymbol::addMember('%s')\n", toChars()); | |
| 411 //printf("Dsymbol::addMember(this = %p, '%s' scopesym = '%s')\n", this, toChars(), sd->toChars()); | |
| 412 //printf("Dsymbol::addMember(this = %p, '%s' sd = %p, sd->symtab = %p)\n", this, toChars(), sd, sd->symtab); | |
| 413 parent = sd; | |
| 414 if (!isAnonymous()) // no name, so can't add it to symbol table | |
| 415 { | |
| 416 if (!sd->symtab->insert(this)) // if name is already defined | |
| 417 { | |
| 418 Dsymbol *s2; | |
| 419 | |
| 420 s2 = sd->symtab->lookup(ident); | |
| 421 if (!s2->overloadInsert(this)) | |
| 422 { | |
| 423 sd->multiplyDefined(0, this, s2); | |
| 424 } | |
| 425 } | |
| 426 if (sd->isAggregateDeclaration() || sd->isEnumDeclaration()) | |
| 427 { | |
| 428 if (ident == Id::__sizeof || ident == Id::alignof || ident == Id::mangleof) | |
| 429 error(".%s property cannot be redefined", ident->toChars()); | |
| 430 } | |
| 431 return 1; | |
| 432 } | |
| 433 return 0; | |
| 434 } | |
| 435 | |
| 436 void Dsymbol::error(const char *format, ...) | |
| 437 { | |
| 438 //printf("Dsymbol::error()\n"); | |
| 439 if (!global.gag) | |
| 440 { | |
| 441 char *p = locToChars(); | |
| 442 | |
| 443 if (*p) | |
| 444 fprintf(stdmsg, "%s: ", p); | |
| 445 mem.free(p); | |
| 446 | |
| 447 if (isAnonymous()) | |
| 448 fprintf(stdmsg, "%s ", kind()); | |
| 449 else | |
| 450 fprintf(stdmsg, "%s %s ", kind(), toPrettyChars()); | |
| 451 | |
| 452 va_list ap; | |
| 453 va_start(ap, format); | |
| 454 vfprintf(stdmsg, format, ap); | |
| 455 va_end(ap); | |
| 456 | |
| 457 fprintf(stdmsg, "\n"); | |
| 458 fflush(stdmsg); | |
| 459 } | |
| 460 global.errors++; | |
| 461 | |
| 462 //fatal(); | |
| 463 } | |
| 464 | |
| 465 void Dsymbol::error(Loc loc, const char *format, ...) | |
| 466 { | |
| 467 if (!global.gag) | |
| 468 { | |
| 469 char *p = loc.toChars(); | |
| 470 if (!*p) | |
| 471 p = locToChars(); | |
| 472 | |
| 473 if (*p) | |
| 474 fprintf(stdmsg, "%s: ", p); | |
| 475 mem.free(p); | |
| 476 | |
| 477 fprintf(stdmsg, "%s %s ", kind(), toPrettyChars()); | |
| 478 | |
| 479 va_list ap; | |
| 480 va_start(ap, format); | |
| 481 vfprintf(stdmsg, format, ap); | |
| 482 va_end(ap); | |
| 483 | |
| 484 fprintf(stdmsg, "\n"); | |
| 485 fflush(stdmsg); | |
| 486 } | |
| 487 | |
| 488 global.errors++; | |
| 489 | |
| 490 //fatal(); | |
| 491 } | |
| 492 | |
| 493 void Dsymbol::checkDeprecated(Loc loc, Scope *sc) | |
| 494 { | |
| 495 if (!global.params.useDeprecated && isDeprecated()) | |
| 496 { | |
| 497 // Don't complain if we're inside a deprecated symbol's scope | |
| 498 for (Dsymbol *sp = sc->parent; sp; sp = sp->parent) | |
| 499 { if (sp->isDeprecated()) | |
| 500 return; | |
| 501 } | |
| 502 | |
| 503 for (; sc; sc = sc->enclosing) | |
| 504 { | |
| 505 if (sc->scopesym && sc->scopesym->isDeprecated()) | |
| 506 return; | |
| 507 } | |
| 508 | |
| 509 error(loc, "is deprecated"); | |
| 510 } | |
| 511 } | |
| 512 | |
| 513 /********************************** | |
| 514 * Determine which Module a Dsymbol is in. | |
| 515 */ | |
| 516 | |
| 517 Module *Dsymbol::getModule() | |
| 518 { | |
| 519 Module *m; | |
| 520 Dsymbol *s; | |
| 521 | |
| 522 //printf("Dsymbol::getModule()\n"); | |
| 523 s = this; | |
| 524 while (s) | |
| 525 { | |
| 526 //printf("\ts = '%s'\n", s->toChars()); | |
| 527 m = s->isModule(); | |
| 528 if (m) | |
| 529 return m; | |
| 530 s = s->parent; | |
| 531 } | |
| 532 return NULL; | |
| 533 } | |
| 534 | |
| 535 /************************************* | |
| 536 */ | |
| 537 | |
| 538 enum PROT Dsymbol::prot() | |
| 539 { | |
| 540 return PROTpublic; | |
| 541 } | |
| 542 | |
| 543 /************************************* | |
| 544 * Do syntax copy of an array of Dsymbol's. | |
| 545 */ | |
| 546 | |
| 547 | |
| 548 Array *Dsymbol::arraySyntaxCopy(Array *a) | |
| 549 { | |
| 550 | |
| 551 Array *b = NULL; | |
| 552 if (a) | |
| 553 { | |
| 554 b = a->copy(); | |
| 555 for (int i = 0; i < b->dim; i++) | |
| 556 { | |
| 557 Dsymbol *s = (Dsymbol *)b->data[i]; | |
| 558 | |
| 559 s = s->syntaxCopy(NULL); | |
| 560 b->data[i] = (void *)s; | |
| 561 } | |
| 562 } | |
| 563 return b; | |
| 564 } | |
| 565 | |
| 566 | |
| 567 /**************************************** | |
| 568 * Add documentation comment to Dsymbol. | |
| 569 * Ignore NULL comments. | |
| 570 */ | |
| 571 | |
| 572 void Dsymbol::addComment(unsigned char *comment) | |
| 573 { | |
| 574 // if (comment) | |
| 575 // printf("adding comment '%s' to symbol %p '%s'\n", comment, this, toChars()); | |
| 576 | |
| 577 if (!this->comment) | |
| 578 this->comment = comment; | |
| 579 #if 1 | |
| 580 else if (comment && strcmp((char *)comment, (char *)this->comment)) | |
| 581 { // Concatenate the two | |
| 582 this->comment = Lexer::combineComments(this->comment, comment); | |
| 583 } | |
| 584 #endif | |
| 585 } | |
| 586 | |
| 587 | |
| 588 /********************************* ScopeDsymbol ****************************/ | |
| 589 | |
| 590 ScopeDsymbol::ScopeDsymbol() | |
| 591 : Dsymbol() | |
| 592 { | |
| 593 members = NULL; | |
| 594 symtab = NULL; | |
| 595 imports = NULL; | |
| 596 prots = NULL; | |
| 597 } | |
| 598 | |
| 599 ScopeDsymbol::ScopeDsymbol(Identifier *id) | |
| 600 : Dsymbol(id) | |
| 601 { | |
| 602 members = NULL; | |
| 603 symtab = NULL; | |
| 604 imports = NULL; | |
| 605 prots = NULL; | |
| 606 } | |
| 607 | |
| 608 Dsymbol *ScopeDsymbol::syntaxCopy(Dsymbol *s) | |
| 609 { | |
| 610 //printf("ScopeDsymbol::syntaxCopy('%s')\n", toChars()); | |
| 611 | |
| 612 ScopeDsymbol *sd; | |
| 613 if (s) | |
| 614 sd = (ScopeDsymbol *)s; | |
| 615 else | |
| 616 sd = new ScopeDsymbol(ident); | |
| 617 sd->members = arraySyntaxCopy(members); | |
| 618 return sd; | |
| 619 } | |
| 620 | |
| 621 Dsymbol *ScopeDsymbol::search(Loc loc, Identifier *ident, int flags) | |
| 622 { Dsymbol *s; | |
| 623 int i; | |
| 624 | |
| 625 //printf("%s->ScopeDsymbol::search(ident='%s', flags=x%x)\n", toChars(), ident->toChars(), flags); | |
| 626 // Look in symbols declared in this module | |
| 627 s = symtab ? symtab->lookup(ident) : NULL; | |
| 628 if (s) | |
| 629 { | |
| 630 //printf("\ts = '%s.%s'\n",toChars(),s->toChars()); | |
| 631 } | |
| 632 else if (imports) | |
| 633 { | |
| 634 // Look in imported modules | |
| 635 for (i = 0; i < imports->dim; i++) | |
| 636 { ScopeDsymbol *ss = (ScopeDsymbol *)imports->data[i]; | |
| 637 Dsymbol *s2; | |
| 638 | |
| 639 // If private import, don't search it | |
| 640 if (flags & 1 && prots[i] == PROTprivate) | |
| 641 continue; | |
| 642 | |
| 643 //printf("\tscanning import '%s', prots = %d, isModule = %p, isImport = %p\n", ss->toChars(), prots[i], ss->isModule(), ss->isImport()); | |
| 644 s2 = ss->search(loc, ident, ss->isModule() ? 1 : 0); | |
| 645 if (!s) | |
| 646 s = s2; | |
| 647 else if (s2 && s != s2) | |
| 648 { | |
| 649 if (s->toAlias() == s2->toAlias()) | |
| 650 { | |
| 651 if (s->isDeprecated()) | |
| 652 s = s2; | |
| 653 } | |
| 654 else | |
| 655 { | |
| 656 /* Two imports of the same module should be regarded as | |
| 657 * the same. | |
| 658 */ | |
| 659 Import *i1 = s->isImport(); | |
| 660 Import *i2 = s2->isImport(); | |
| 661 if (!(i1 && i2 && | |
| 662 (i1->mod == i2->mod || | |
| 663 (!i1->parent->isImport() && !i2->parent->isImport() && | |
| 664 i1->ident->equals(i2->ident)) | |
| 665 ) | |
| 666 ) | |
| 667 ) | |
| 668 { | |
| 669 ss->multiplyDefined(loc, s, s2); | |
| 670 break; | |
| 671 } | |
| 672 } | |
| 673 } | |
| 674 } | |
| 675 if (s) | |
| 676 { | |
| 677 Declaration *d = s->isDeclaration(); | |
| 678 if (d && d->protection == PROTprivate && !d->parent->isTemplateMixin()) | |
| 679 error("%s is private", d->toPrettyChars()); | |
| 680 } | |
| 681 } | |
| 682 return s; | |
| 683 } | |
| 684 | |
| 685 void ScopeDsymbol::importScope(ScopeDsymbol *s, enum PROT protection) | |
| 686 { | |
| 687 //printf("%s->ScopeDsymbol::importScope(%s, %d)\n", toChars(), s->toChars(), protection); | |
| 688 | |
| 689 // No circular or redundant import's | |
| 690 if (s != this) | |
| 691 { | |
| 692 if (!imports) | |
| 693 imports = new Array(); | |
| 694 else | |
| 695 { | |
| 696 for (int i = 0; i < imports->dim; i++) | |
| 697 { ScopeDsymbol *ss; | |
| 698 | |
| 699 ss = (ScopeDsymbol *) imports->data[i]; | |
| 700 if (ss == s) | |
| 701 { | |
| 702 if (protection > prots[i]) | |
| 703 prots[i] = protection; // upgrade access | |
| 704 return; | |
| 705 } | |
| 706 } | |
| 707 } | |
| 708 imports->push(s); | |
| 709 prots = (unsigned char *)mem.realloc(prots, imports->dim * sizeof(prots[0])); | |
| 710 prots[imports->dim - 1] = protection; | |
| 711 } | |
| 712 } | |
| 713 | |
| 714 int ScopeDsymbol::isforwardRef() | |
| 715 { | |
| 716 return (members == NULL); | |
| 717 } | |
| 718 | |
| 719 void ScopeDsymbol::defineRef(Dsymbol *s) | |
| 720 { | |
| 721 ScopeDsymbol *ss; | |
| 722 | |
| 723 ss = s->isScopeDsymbol(); | |
| 724 members = ss->members; | |
| 725 ss->members = NULL; | |
| 726 } | |
| 727 | |
| 728 void ScopeDsymbol::multiplyDefined(Loc loc, Dsymbol *s1, Dsymbol *s2) | |
| 729 { | |
| 730 #if 0 | |
| 731 printf("ScopeDsymbol::multiplyDefined()\n"); | |
| 732 printf("s1 = %p, '%s' kind = '%s', parent = %s\n", s1, s1->toChars(), s1->kind(), s1->parent ? s1->parent->toChars() : ""); | |
| 733 printf("s2 = %p, '%s' kind = '%s', parent = %s\n", s2, s2->toChars(), s2->kind(), s2->parent ? s2->parent->toChars() : ""); | |
| 734 #endif | |
| 735 if (loc.filename) | |
| 736 { ::error(loc, "%s at %s conflicts with %s at %s", | |
| 737 s1->toPrettyChars(), | |
| 738 s1->locToChars(), | |
| 739 s2->toPrettyChars(), | |
| 740 s2->locToChars()); | |
| 741 } | |
| 742 else | |
| 743 { | |
| 744 s1->error(loc, "conflicts with %s %s at %s", | |
| 745 s2->kind(), | |
| 746 s2->toPrettyChars(), | |
| 747 s2->locToChars()); | |
| 748 } | |
| 749 } | |
| 750 | |
| 751 Dsymbol *ScopeDsymbol::nameCollision(Dsymbol *s) | |
| 752 { | |
| 753 Dsymbol *sprev; | |
| 754 | |
| 755 // Look to see if we are defining a forward referenced symbol | |
| 756 | |
| 757 sprev = symtab->lookup(s->ident); | |
| 758 assert(sprev); | |
| 759 if (s->equals(sprev)) // if the same symbol | |
| 760 { | |
| 761 if (s->isforwardRef()) // if second declaration is a forward reference | |
| 762 return sprev; | |
| 763 if (sprev->isforwardRef()) | |
| 764 { | |
| 765 sprev->defineRef(s); // copy data from s into sprev | |
| 766 return sprev; | |
| 767 } | |
| 768 } | |
| 769 multiplyDefined(0, s, sprev); | |
| 770 return sprev; | |
| 771 } | |
| 772 | |
| 773 char *ScopeDsymbol::kind() | |
| 774 { | |
| 775 return "ScopeDsymbol"; | |
| 776 } | |
| 777 | |
| 778 | |
| 19 | 779 /******************************************* |
| 780 * Look for member of the form: | |
| 781 * const(MemberInfo)[] getMembers(string); | |
| 782 * Returns NULL if not found | |
| 783 */ | |
| 784 | |
| 785 #if V2 | |
| 786 FuncDeclaration *ScopeDsymbol::findGetMembers() | |
| 787 { | |
| 788 Dsymbol *s = search_function(this, Id::getmembers); | |
| 789 FuncDeclaration *fdx = s ? s->isFuncDeclaration() : NULL; | |
| 790 | |
| 791 #if 0 // Finish | |
| 792 static TypeFunction *tfgetmembers; | |
| 793 | |
| 794 if (!tfgetmembers) | |
| 795 { | |
| 796 Scope sc; | |
| 797 Arguments *arguments = new Arguments; | |
| 798 Arguments *arg = new Argument(STCin, Type::tchar->constOf()->arrayOf(), NULL, NULL); | |
| 799 arguments->push(arg); | |
| 800 | |
| 801 Type *tret = NULL; | |
| 802 tfgetmembers = new TypeFunction(arguments, tret, 0, LINKd); | |
| 803 tfgetmembers = (TypeFunction *)tfgetmembers->semantic(0, &sc); | |
| 804 } | |
| 805 if (fdx) | |
| 806 fdx = fdx->overloadExactMatch(tfgetmembers); | |
| 807 #endif | |
| 808 if (fdx && fdx->isVirtual()) | |
| 809 fdx = NULL; | |
| 810 | |
| 811 return fdx; | |
| 812 } | |
| 813 #endif | |
| 814 | |
| 815 | |
| 1 | 816 /****************************** WithScopeSymbol ******************************/ |
| 817 | |
| 818 WithScopeSymbol::WithScopeSymbol(WithStatement *withstate) | |
| 819 : ScopeDsymbol() | |
| 820 { | |
| 821 this->withstate = withstate; | |
| 822 } | |
| 823 | |
| 824 Dsymbol *WithScopeSymbol::search(Loc loc, Identifier *ident, int flags) | |
| 825 { | |
| 826 // Acts as proxy to the with class declaration | |
| 827 return withstate->exp->type->toDsymbol(NULL)->search(loc, ident, 0); | |
| 828 } | |
| 829 | |
| 830 /****************************** ArrayScopeSymbol ******************************/ | |
| 831 | |
| 832 ArrayScopeSymbol::ArrayScopeSymbol(Expression *e) | |
| 833 : ScopeDsymbol() | |
| 834 { | |
| 835 assert(e->op == TOKindex || e->op == TOKslice); | |
| 836 exp = e; | |
| 837 type = NULL; | |
| 838 td = NULL; | |
| 839 } | |
| 840 | |
| 841 ArrayScopeSymbol::ArrayScopeSymbol(TypeTuple *t) | |
| 842 : ScopeDsymbol() | |
| 843 { | |
| 844 exp = NULL; | |
| 845 type = t; | |
| 846 td = NULL; | |
| 847 } | |
| 848 | |
| 849 ArrayScopeSymbol::ArrayScopeSymbol(TupleDeclaration *s) | |
| 850 : ScopeDsymbol() | |
| 851 { | |
| 852 exp = NULL; | |
| 853 type = NULL; | |
| 854 td = s; | |
| 855 } | |
| 856 | |
| 857 Dsymbol *ArrayScopeSymbol::search(Loc loc, Identifier *ident, int flags) | |
| 858 { | |
| 859 //printf("ArrayScopeSymbol::search('%s', flags = %d)\n", ident->toChars(), flags); | |
| 860 if (ident == Id::length || ident == Id::dollar) | |
| 861 { VarDeclaration **pvar; | |
| 862 Expression *ce; | |
| 863 | |
| 864 L1: | |
| 865 | |
| 866 if (td) | |
| 867 { | |
| 868 VarDeclaration *v = new VarDeclaration(loc, Type::tsize_t, Id::dollar, NULL); | |
| 869 Expression *e = new IntegerExp(0, td->objects->dim, Type::tsize_t); | |
| 870 v->init = new ExpInitializer(0, e); | |
| 871 v->storage_class |= STCconst; | |
| 872 return v; | |
| 873 } | |
| 874 | |
| 875 if (type) | |
| 876 { | |
| 877 VarDeclaration *v = new VarDeclaration(loc, Type::tsize_t, Id::dollar, NULL); | |
| 878 Expression *e = new IntegerExp(0, type->arguments->dim, Type::tsize_t); | |
| 879 v->init = new ExpInitializer(0, e); | |
| 880 v->storage_class |= STCconst; | |
| 881 return v; | |
| 882 } | |
| 883 | |
| 884 if (exp->op == TOKindex) | |
| 885 { | |
| 886 IndexExp *ie = (IndexExp *)exp; | |
| 887 | |
| 888 pvar = &ie->lengthVar; | |
| 889 ce = ie->e1; | |
| 890 } | |
| 891 else if (exp->op == TOKslice) | |
| 892 { | |
| 893 SliceExp *se = (SliceExp *)exp; | |
| 894 | |
| 895 pvar = &se->lengthVar; | |
| 896 ce = se->e1; | |
| 897 } | |
| 898 else | |
| 899 return NULL; | |
| 900 | |
| 901 if (ce->op == TOKtype) | |
| 902 { | |
| 903 Type *t = ((TypeExp *)ce)->type; | |
| 904 if (t->ty == Ttuple) | |
| 905 { type = (TypeTuple *)t; | |
| 906 goto L1; | |
| 907 } | |
| 908 } | |
| 909 | |
| 910 if (!*pvar) | |
| 911 { | |
| 912 VarDeclaration *v = new VarDeclaration(loc, Type::tsize_t, Id::dollar, NULL); | |
| 913 | |
| 914 if (ce->op == TOKstring) | |
| 915 { /* It is for a string literal, so the | |
| 916 * length will be a const. | |
| 917 */ | |
| 918 Expression *e = new IntegerExp(0, ((StringExp *)ce)->len, Type::tsize_t); | |
| 919 v->init = new ExpInitializer(0, e); | |
| 920 v->storage_class |= STCconst; | |
| 921 } | |
| 922 else if (ce->op == TOKarrayliteral) | |
| 923 { /* It is for an array literal, so the | |
| 924 * length will be a const. | |
| 925 */ | |
| 926 Expression *e = new IntegerExp(0, ((ArrayLiteralExp *)ce)->elements->dim, Type::tsize_t); | |
| 927 v->init = new ExpInitializer(0, e); | |
| 928 v->storage_class |= STCconst; | |
| 929 } | |
| 930 else if (ce->op == TOKtuple) | |
| 931 { /* It is for an expression tuple, so the | |
| 932 * length will be a const. | |
| 933 */ | |
| 934 Expression *e = new IntegerExp(0, ((TupleExp *)ce)->exps->dim, Type::tsize_t); | |
| 935 v->init = new ExpInitializer(0, e); | |
| 936 v->storage_class |= STCconst; | |
| 937 } | |
| 938 *pvar = v; | |
| 939 } | |
| 940 return (*pvar); | |
| 941 } | |
| 942 return NULL; | |
| 943 } | |
| 944 | |
| 945 | |
| 946 /****************************** DsymbolTable ******************************/ | |
| 947 | |
| 948 DsymbolTable::DsymbolTable() | |
| 949 { | |
| 950 tab = new StringTable; | |
| 951 } | |
| 952 | |
| 953 DsymbolTable::~DsymbolTable() | |
| 954 { | |
| 955 delete tab; | |
| 956 } | |
| 957 | |
| 958 Dsymbol *DsymbolTable::lookup(Identifier *ident) | |
| 959 { StringValue *sv; | |
| 960 | |
| 961 #ifdef DEBUG | |
| 962 assert(ident); | |
| 963 assert(tab); | |
| 964 #endif | |
| 965 sv = tab->lookup((char*)ident->string, ident->len); | |
| 966 return (Dsymbol *)(sv ? sv->ptrvalue : NULL); | |
| 967 } | |
| 968 | |
| 969 Dsymbol *DsymbolTable::insert(Dsymbol *s) | |
| 970 { StringValue *sv; | |
| 971 Identifier *ident; | |
| 972 | |
| 973 //printf("DsymbolTable::insert(this = %p, '%s')\n", this, s->ident->toChars()); | |
| 974 ident = s->ident; | |
| 975 #ifdef DEBUG | |
| 976 assert(ident); | |
| 977 assert(tab); | |
| 978 #endif | |
| 979 sv = tab->insert(ident->toChars(), ident->len); | |
| 980 if (!sv) | |
| 981 return NULL; // already in table | |
| 982 sv->ptrvalue = s; | |
| 983 return s; | |
| 984 } | |
| 985 | |
| 986 Dsymbol *DsymbolTable::insert(Identifier *ident, Dsymbol *s) | |
| 987 { StringValue *sv; | |
| 988 | |
| 989 //printf("DsymbolTable::insert()\n"); | |
| 990 sv = tab->insert(ident->toChars(), ident->len); | |
| 991 if (!sv) | |
| 992 return NULL; // already in table | |
| 993 sv->ptrvalue = s; | |
| 994 return s; | |
| 995 } | |
| 996 | |
| 997 Dsymbol *DsymbolTable::update(Dsymbol *s) | |
| 998 { StringValue *sv; | |
| 999 Identifier *ident; | |
| 1000 | |
| 1001 ident = s->ident; | |
| 1002 sv = tab->update(ident->toChars(), ident->len); | |
| 1003 sv->ptrvalue = s; | |
| 1004 return s; | |
| 1005 } | |
| 1006 | |
| 1007 | |
| 1008 | |
| 1009 |