Mercurial > projects > ldc
annotate dmd/declaration.c @ 883:b52d5de7783f
GC defines and linkage changes.
| author | Christian Kamm <kamm incasoftware de> |
|---|---|
| date | Thu, 08 Jan 2009 18:20:02 +0100 |
| parents | 340acf1535d0 |
| children | 29c0d1194033 |
| rev | line source |
|---|---|
| 159 | 1 |
| 2 // Compiler implementation of the D programming language | |
| 336 | 3 // Copyright (c) 1999-2008 by Digital Mars |
| 159 | 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 <assert.h> | |
| 13 | |
| 14 #include "init.h" | |
| 15 #include "declaration.h" | |
| 16 #include "attrib.h" | |
| 17 #include "mtype.h" | |
| 18 #include "template.h" | |
| 19 #include "scope.h" | |
| 20 #include "aggregate.h" | |
| 21 #include "module.h" | |
| 22 #include "id.h" | |
| 23 #include "expression.h" | |
| 24 #include "hdrgen.h" | |
| 25 | |
| 26 /********************************* Declaration ****************************/ | |
| 27 | |
| 28 Declaration::Declaration(Identifier *id) | |
| 29 : Dsymbol(id) | |
| 30 { | |
| 31 type = NULL; | |
| 32 originalType = NULL; | |
| 33 storage_class = STCundefined; | |
| 34 protection = PROTundefined; | |
| 35 linkage = LINKdefault; | |
| 36 } | |
| 37 | |
| 38 void Declaration::semantic(Scope *sc) | |
| 39 { | |
| 40 } | |
| 41 | |
| 336 | 42 const char *Declaration::kind() |
| 159 | 43 { |
| 44 return "declaration"; | |
| 45 } | |
| 46 | |
| 47 unsigned Declaration::size(Loc loc) | |
| 48 { | |
| 49 assert(type); | |
| 50 return type->size(); | |
| 51 } | |
| 52 | |
| 53 int Declaration::isStaticConstructor() | |
| 54 { | |
| 55 return FALSE; | |
| 56 } | |
| 57 | |
| 58 int Declaration::isStaticDestructor() | |
| 59 { | |
| 60 return FALSE; | |
| 61 } | |
| 62 | |
| 63 int Declaration::isDelete() | |
| 64 { | |
| 65 return FALSE; | |
| 66 } | |
| 67 | |
| 68 int Declaration::isDataseg() | |
| 69 { | |
| 70 return FALSE; | |
| 71 } | |
| 72 | |
| 73 int Declaration::isCodeseg() | |
| 74 { | |
| 75 return FALSE; | |
| 76 } | |
| 77 | |
| 78 enum PROT Declaration::prot() | |
| 79 { | |
| 80 return protection; | |
| 81 } | |
| 82 | |
| 336 | 83 /************************************* |
| 84 * Check to see if declaration can be modified in this context (sc). | |
| 85 * Issue error if not. | |
| 86 */ | |
| 87 | |
| 88 #if DMDV2 | |
| 89 void Declaration::checkModify(Loc loc, Scope *sc, Type *t) | |
| 90 { | |
| 91 if (sc->incontract && isParameter()) | |
| 92 error(loc, "cannot modify parameter '%s' in contract", toChars()); | |
| 93 | |
| 94 if (isCtorinit()) | |
| 95 { // It's only modifiable if inside the right constructor | |
| 96 Dsymbol *s = sc->func; | |
| 97 while (1) | |
| 98 { | |
| 99 FuncDeclaration *fd = NULL; | |
| 100 if (s) | |
| 101 fd = s->isFuncDeclaration(); | |
| 102 if (fd && | |
| 103 ((fd->isCtorDeclaration() && storage_class & STCfield) || | |
| 104 (fd->isStaticCtorDeclaration() && !(storage_class & STCfield))) && | |
| 105 fd->toParent() == toParent() | |
| 106 ) | |
| 107 { | |
| 108 VarDeclaration *v = isVarDeclaration(); | |
| 109 assert(v); | |
| 110 v->ctorinit = 1; | |
| 111 //printf("setting ctorinit\n"); | |
| 112 } | |
| 113 else | |
| 114 { | |
| 115 if (s) | |
| 116 { s = s->toParent2(); | |
| 117 continue; | |
| 118 } | |
| 119 else | |
| 120 { | |
| 121 const char *p = isStatic() ? "static " : ""; | |
| 122 error(loc, "can only initialize %sconst %s inside %sconstructor", | |
| 123 p, toChars(), p); | |
| 124 } | |
| 125 } | |
| 126 break; | |
| 127 } | |
| 128 } | |
| 129 else | |
| 130 { | |
| 131 VarDeclaration *v = isVarDeclaration(); | |
| 132 if (v && v->canassign == 0) | |
| 133 { | |
| 134 char *p = NULL; | |
| 135 if (isConst()) | |
| 136 p = "const"; | |
| 137 else if (isInvariant()) | |
| 138 p = "invariant"; | |
| 139 else if (storage_class & STCmanifest) | |
| 140 p = "manifest constant"; | |
| 141 else if (!t->isAssignable()) | |
| 142 p = "struct with immutable members"; | |
| 143 if (p) | |
| 144 { error(loc, "cannot modify %s", p); | |
| 145 halt(); | |
| 146 } | |
| 147 } | |
| 148 } | |
| 149 } | |
| 150 #endif | |
| 151 | |
| 152 | |
| 159 | 153 /********************************* TupleDeclaration ****************************/ |
| 154 | |
| 155 TupleDeclaration::TupleDeclaration(Loc loc, Identifier *id, Objects *objects) | |
| 156 : Declaration(id) | |
| 157 { | |
| 158 this->type = NULL; | |
| 159 this->objects = objects; | |
| 160 this->isexp = 0; | |
| 161 this->tupletype = NULL; | |
| 162 } | |
| 163 | |
| 164 Dsymbol *TupleDeclaration::syntaxCopy(Dsymbol *s) | |
| 165 { | |
| 166 assert(0); | |
| 167 return NULL; | |
| 168 } | |
| 169 | |
| 336 | 170 const char *TupleDeclaration::kind() |
| 159 | 171 { |
| 172 return "tuple"; | |
| 173 } | |
| 174 | |
| 175 Type *TupleDeclaration::getType() | |
| 176 { | |
| 177 /* If this tuple represents a type, return that type | |
| 178 */ | |
| 179 | |
| 180 //printf("TupleDeclaration::getType() %s\n", toChars()); | |
| 181 if (isexp) | |
| 182 return NULL; | |
| 183 if (!tupletype) | |
| 184 { | |
| 185 /* It's only a type tuple if all the Object's are types | |
| 186 */ | |
| 187 for (size_t i = 0; i < objects->dim; i++) | |
| 188 { Object *o = (Object *)objects->data[i]; | |
| 189 | |
| 190 if (o->dyncast() != DYNCAST_TYPE) | |
| 191 { | |
| 192 //printf("\tnot[%d], %p, %d\n", i, o, o->dyncast()); | |
| 193 return NULL; | |
| 194 } | |
| 195 } | |
| 196 | |
| 197 /* We know it's a type tuple, so build the TypeTuple | |
| 198 */ | |
| 199 Arguments *args = new Arguments(); | |
| 200 args->setDim(objects->dim); | |
| 201 OutBuffer buf; | |
| 202 for (size_t i = 0; i < objects->dim; i++) | |
| 203 { Type *t = (Type *)objects->data[i]; | |
| 204 | |
| 205 //printf("type = %s\n", t->toChars()); | |
| 206 #if 0 | |
| 207 buf.printf("_%s_%d", ident->toChars(), i); | |
| 208 char *name = (char *)buf.extractData(); | |
| 209 Identifier *id = new Identifier(name, TOKidentifier); | |
| 210 Argument *arg = new Argument(STCin, t, id, NULL); | |
| 211 #else | |
| 212 Argument *arg = new Argument(STCin, t, NULL, NULL); | |
| 213 #endif | |
| 214 args->data[i] = (void *)arg; | |
| 215 } | |
| 216 | |
| 217 tupletype = new TypeTuple(args); | |
| 218 } | |
| 219 | |
| 220 return tupletype; | |
| 221 } | |
| 222 | |
| 223 int TupleDeclaration::needThis() | |
| 224 { | |
| 225 //printf("TupleDeclaration::needThis(%s)\n", toChars()); | |
| 226 for (size_t i = 0; i < objects->dim; i++) | |
| 227 { Object *o = (Object *)objects->data[i]; | |
| 228 if (o->dyncast() == DYNCAST_EXPRESSION) | |
| 229 { Expression *e = (Expression *)o; | |
| 230 if (e->op == TOKdsymbol) | |
| 231 { DsymbolExp *ve = (DsymbolExp *)e; | |
| 232 Declaration *d = ve->s->isDeclaration(); | |
| 233 if (d && d->needThis()) | |
| 234 { | |
| 235 return 1; | |
| 236 } | |
| 237 } | |
| 238 } | |
| 239 } | |
| 240 return 0; | |
| 241 } | |
| 242 | |
| 243 /********************************* TypedefDeclaration ****************************/ | |
| 244 | |
| 245 TypedefDeclaration::TypedefDeclaration(Loc loc, Identifier *id, Type *basetype, Initializer *init) | |
| 246 : Declaration(id) | |
| 247 { | |
| 248 this->type = new TypeTypedef(this); | |
| 249 this->basetype = basetype->toBasetype(); | |
| 250 this->init = init; | |
| 251 #ifdef _DH | |
| 252 this->htype = NULL; | |
| 253 this->hbasetype = NULL; | |
| 254 #endif | |
| 255 this->sem = 0; | |
| 256 this->inuse = 0; | |
| 257 this->loc = loc; | |
| 258 this->sinit = NULL; | |
| 259 } | |
| 260 | |
| 261 Dsymbol *TypedefDeclaration::syntaxCopy(Dsymbol *s) | |
| 262 { | |
| 263 Type *basetype = this->basetype->syntaxCopy(); | |
| 264 | |
| 265 Initializer *init = NULL; | |
| 266 if (this->init) | |
| 267 init = this->init->syntaxCopy(); | |
| 268 | |
| 269 assert(!s); | |
| 270 TypedefDeclaration *st; | |
| 271 st = new TypedefDeclaration(loc, ident, basetype, init); | |
| 272 #ifdef _DH | |
| 273 // Syntax copy for header file | |
| 274 if (!htype) // Don't overwrite original | |
| 275 { if (type) // Make copy for both old and new instances | |
| 276 { htype = type->syntaxCopy(); | |
| 277 st->htype = type->syntaxCopy(); | |
| 278 } | |
| 279 } | |
| 280 else // Make copy of original for new instance | |
| 281 st->htype = htype->syntaxCopy(); | |
| 282 if (!hbasetype) | |
| 283 { if (basetype) | |
| 284 { hbasetype = basetype->syntaxCopy(); | |
| 285 st->hbasetype = basetype->syntaxCopy(); | |
| 286 } | |
| 287 } | |
| 288 else | |
| 289 st->hbasetype = hbasetype->syntaxCopy(); | |
| 290 #endif | |
| 291 return st; | |
| 292 } | |
| 293 | |
| 294 void TypedefDeclaration::semantic(Scope *sc) | |
| 295 { | |
| 296 //printf("TypedefDeclaration::semantic(%s) sem = %d\n", toChars(), sem); | |
| 297 if (sem == 0) | |
| 298 { sem = 1; | |
| 299 basetype = basetype->semantic(loc, sc); | |
| 300 sem = 2; | |
| 301 type = type->semantic(loc, sc); | |
| 302 if (sc->parent->isFuncDeclaration() && init) | |
| 303 semantic2(sc); | |
| 336 | 304 storage_class |= sc->stc & STCdeprecated; |
| 159 | 305 } |
| 306 else if (sem == 1) | |
| 307 { | |
| 308 error("circular definition"); | |
| 309 } | |
| 310 } | |
| 311 | |
| 312 void TypedefDeclaration::semantic2(Scope *sc) | |
| 313 { | |
| 314 //printf("TypedefDeclaration::semantic2(%s) sem = %d\n", toChars(), sem); | |
| 315 if (sem == 2) | |
| 316 { sem = 3; | |
| 317 if (init) | |
| 318 { | |
| 319 init = init->semantic(sc, basetype); | |
| 320 | |
| 321 ExpInitializer *ie = init->isExpInitializer(); | |
| 322 if (ie) | |
| 323 { | |
| 324 if (ie->exp->type == basetype) | |
| 325 ie->exp->type = type; | |
| 326 } | |
| 327 } | |
| 328 } | |
| 329 } | |
| 330 | |
| 336 | 331 const char *TypedefDeclaration::kind() |
| 159 | 332 { |
| 333 return "typedef"; | |
| 334 } | |
| 335 | |
| 336 Type *TypedefDeclaration::getType() | |
| 337 { | |
| 338 return type; | |
| 339 } | |
| 340 | |
| 341 void TypedefDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 342 { | |
| 343 buf->writestring("typedef "); | |
| 344 basetype->toCBuffer(buf, ident, hgs); | |
| 345 if (init) | |
| 346 { | |
| 347 buf->writestring(" = "); | |
| 348 init->toCBuffer(buf, hgs); | |
| 349 } | |
| 350 buf->writeByte(';'); | |
| 351 buf->writenl(); | |
| 352 } | |
| 353 | |
| 354 /********************************* AliasDeclaration ****************************/ | |
| 355 | |
| 356 AliasDeclaration::AliasDeclaration(Loc loc, Identifier *id, Type *type) | |
| 357 : Declaration(id) | |
| 358 { | |
| 359 //printf("AliasDeclaration(id = '%s', type = %p)\n", id->toChars(), type); | |
| 360 //printf("type = '%s'\n", type->toChars()); | |
| 361 this->loc = loc; | |
| 362 this->type = type; | |
| 363 this->aliassym = NULL; | |
| 364 #ifdef _DH | |
| 365 this->htype = NULL; | |
| 366 this->haliassym = NULL; | |
| 367 #endif | |
| 368 this->overnext = NULL; | |
| 369 this->inSemantic = 0; | |
| 370 assert(type); | |
| 371 } | |
| 372 | |
| 373 AliasDeclaration::AliasDeclaration(Loc loc, Identifier *id, Dsymbol *s) | |
| 374 : Declaration(id) | |
| 375 { | |
| 376 //printf("AliasDeclaration(id = '%s', s = %p)\n", id->toChars(), s); | |
| 377 assert(s != this); | |
| 378 this->loc = loc; | |
| 379 this->type = NULL; | |
| 380 this->aliassym = s; | |
| 381 #ifdef _DH | |
| 382 this->htype = NULL; | |
| 383 this->haliassym = NULL; | |
| 384 #endif | |
| 385 this->overnext = NULL; | |
| 386 this->inSemantic = 0; | |
| 387 assert(s); | |
| 388 } | |
| 389 | |
| 390 Dsymbol *AliasDeclaration::syntaxCopy(Dsymbol *s) | |
| 391 { | |
| 336 | 392 //printf("AliasDeclaration::syntaxCopy()\n"); |
| 159 | 393 assert(!s); |
| 394 AliasDeclaration *sa; | |
| 395 if (type) | |
| 396 sa = new AliasDeclaration(loc, ident, type->syntaxCopy()); | |
| 397 else | |
| 398 sa = new AliasDeclaration(loc, ident, aliassym->syntaxCopy(NULL)); | |
| 399 #ifdef _DH | |
| 400 // Syntax copy for header file | |
| 401 if (!htype) // Don't overwrite original | |
| 402 { if (type) // Make copy for both old and new instances | |
| 403 { htype = type->syntaxCopy(); | |
| 404 sa->htype = type->syntaxCopy(); | |
| 405 } | |
| 406 } | |
| 407 else // Make copy of original for new instance | |
| 408 sa->htype = htype->syntaxCopy(); | |
| 409 if (!haliassym) | |
| 410 { if (aliassym) | |
| 411 { haliassym = aliassym->syntaxCopy(s); | |
| 412 sa->haliassym = aliassym->syntaxCopy(s); | |
| 413 } | |
| 414 } | |
| 415 else | |
| 416 sa->haliassym = haliassym->syntaxCopy(s); | |
| 417 #endif | |
| 418 return sa; | |
| 419 } | |
| 420 | |
| 421 void AliasDeclaration::semantic(Scope *sc) | |
| 422 { | |
| 423 //printf("AliasDeclaration::semantic() %s\n", toChars()); | |
| 424 if (aliassym) | |
| 425 { | |
| 426 if (aliassym->isTemplateInstance()) | |
| 427 aliassym->semantic(sc); | |
| 428 return; | |
| 429 } | |
| 430 this->inSemantic = 1; | |
| 431 | |
| 432 if (storage_class & STCconst) | |
| 433 error("cannot be const"); | |
| 434 | |
| 435 storage_class |= sc->stc & STCdeprecated; | |
| 436 | |
| 437 // Given: | |
| 438 // alias foo.bar.abc def; | |
| 439 // it is not knowable from the syntax whether this is an alias | |
| 440 // for a type or an alias for a symbol. It is up to the semantic() | |
| 441 // pass to distinguish. | |
| 442 // If it is a type, then type is set and getType() will return that | |
| 443 // type. If it is a symbol, then aliassym is set and type is NULL - | |
| 444 // toAlias() will return aliasssym. | |
| 445 | |
| 446 Dsymbol *s; | |
| 447 Type *t; | |
| 448 Expression *e; | |
| 449 | |
| 450 /* This section is needed because resolve() will: | |
| 451 * const x = 3; | |
| 452 * alias x y; | |
| 453 * try to alias y to 3. | |
| 454 */ | |
| 455 s = type->toDsymbol(sc); | |
| 456 if (s) | |
| 457 goto L2; // it's a symbolic alias | |
| 458 | |
| 459 //printf("alias type is %s\n", type->toChars()); | |
| 460 type->resolve(loc, sc, &e, &t, &s); | |
| 461 if (s) | |
| 462 { | |
| 463 goto L2; | |
| 464 } | |
| 465 else if (e) | |
| 466 { | |
| 467 // Try to convert Expression to Dsymbol | |
| 468 if (e->op == TOKvar) | |
| 469 { s = ((VarExp *)e)->var; | |
| 470 goto L2; | |
| 471 } | |
| 472 else if (e->op == TOKfunction) | |
| 473 { s = ((FuncExp *)e)->fd; | |
| 474 goto L2; | |
| 475 } | |
| 476 else | |
| 477 { error("cannot alias an expression %s", e->toChars()); | |
| 478 t = e->type; | |
| 479 } | |
| 480 } | |
| 481 else if (t) | |
| 482 type = t; | |
| 483 if (overnext) | |
| 484 ScopeDsymbol::multiplyDefined(0, this, overnext); | |
| 485 this->inSemantic = 0; | |
| 486 return; | |
| 487 | |
| 488 L2: | |
| 489 //printf("alias is a symbol %s %s\n", s->kind(), s->toChars()); | |
| 490 type = NULL; | |
| 491 VarDeclaration *v = s->isVarDeclaration(); | |
| 492 if (v && v->linkage == LINKdefault) | |
| 493 { | |
| 494 error("forward reference of %s", v->toChars()); | |
| 495 s = NULL; | |
| 496 } | |
| 497 else | |
| 498 { | |
| 499 FuncDeclaration *f = s->toAlias()->isFuncDeclaration(); | |
| 500 if (f) | |
| 501 { | |
| 502 if (overnext) | |
| 503 { | |
| 504 FuncAliasDeclaration *fa = new FuncAliasDeclaration(f); | |
| 505 if (!fa->overloadInsert(overnext)) | |
| 506 ScopeDsymbol::multiplyDefined(0, f, overnext); | |
| 507 overnext = NULL; | |
| 508 s = fa; | |
| 509 s->parent = sc->parent; | |
| 510 } | |
| 511 } | |
| 512 if (overnext) | |
| 513 ScopeDsymbol::multiplyDefined(0, s, overnext); | |
| 514 if (s == this) | |
| 515 { | |
| 516 assert(global.errors); | |
| 517 s = NULL; | |
| 518 } | |
| 519 } | |
| 520 aliassym = s; | |
| 521 this->inSemantic = 0; | |
| 522 } | |
| 523 | |
| 524 int AliasDeclaration::overloadInsert(Dsymbol *s) | |
| 525 { | |
| 526 /* Don't know yet what the aliased symbol is, so assume it can | |
| 527 * be overloaded and check later for correctness. | |
| 528 */ | |
| 529 | |
| 530 //printf("AliasDeclaration::overloadInsert('%s')\n", s->toChars()); | |
| 531 if (overnext == NULL) | |
| 532 { overnext = s; | |
| 533 return TRUE; | |
| 534 } | |
| 535 else | |
| 536 { | |
| 537 return overnext->overloadInsert(s); | |
| 538 } | |
| 539 } | |
| 540 | |
| 336 | 541 const char *AliasDeclaration::kind() |
| 159 | 542 { |
| 543 return "alias"; | |
| 544 } | |
| 545 | |
| 546 Type *AliasDeclaration::getType() | |
| 547 { | |
| 548 return type; | |
| 549 } | |
| 550 | |
| 551 Dsymbol *AliasDeclaration::toAlias() | |
| 552 { | |
| 553 //printf("AliasDeclaration::toAlias('%s', this = %p, aliassym = %p, kind = '%s')\n", toChars(), this, aliassym, aliassym ? aliassym->kind() : ""); | |
| 554 assert(this != aliassym); | |
| 555 //static int count; if (++count == 10) *(char*)0=0; | |
| 556 if (inSemantic) | |
| 557 { error("recursive alias declaration"); | |
| 558 // return this; | |
| 559 } | |
| 560 Dsymbol *s = aliassym ? aliassym->toAlias() : this; | |
| 561 return s; | |
| 562 } | |
| 563 | |
| 564 void AliasDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 565 { | |
| 566 buf->writestring("alias "); | |
| 567 #if 0 && _DH | |
| 568 if (hgs->hdrgen) | |
| 569 { | |
| 570 if (haliassym) | |
| 571 { | |
| 572 haliassym->toCBuffer(buf, hgs); | |
| 573 buf->writeByte(' '); | |
| 574 buf->writestring(ident->toChars()); | |
| 575 } | |
| 576 else | |
| 577 htype->toCBuffer(buf, ident, hgs); | |
| 578 } | |
| 579 else | |
| 580 #endif | |
| 581 { | |
| 582 if (aliassym) | |
| 583 { | |
| 584 aliassym->toCBuffer(buf, hgs); | |
| 585 buf->writeByte(' '); | |
| 586 buf->writestring(ident->toChars()); | |
| 587 } | |
| 588 else | |
| 589 type->toCBuffer(buf, ident, hgs); | |
| 590 } | |
| 591 buf->writeByte(';'); | |
| 592 buf->writenl(); | |
| 593 } | |
| 594 | |
| 595 /********************************* VarDeclaration ****************************/ | |
| 596 | |
| 597 VarDeclaration::VarDeclaration(Loc loc, Type *type, Identifier *id, Initializer *init) | |
| 598 : Declaration(id) | |
| 599 { | |
| 600 //printf("VarDeclaration('%s')\n", id->toChars()); | |
| 601 #ifdef DEBUG | |
| 602 if (!type && !init) | |
| 603 { printf("VarDeclaration('%s')\n", id->toChars()); | |
| 604 //*(char*)0=0; | |
| 605 } | |
| 606 #endif | |
| 607 assert(type || init); | |
| 608 this->type = type; | |
| 609 this->init = init; | |
| 610 #ifdef _DH | |
| 611 this->htype = NULL; | |
| 612 this->hinit = NULL; | |
| 613 #endif | |
| 614 this->loc = loc; | |
| 615 offset = 0; | |
| 616 noauto = 0; | |
| 617 nestedref = 0; | |
| 618 inuse = 0; | |
| 619 ctorinit = 0; | |
| 620 aliassym = NULL; | |
| 621 onstack = 0; | |
| 622 canassign = 0; | |
| 623 value = NULL; | |
|
737
041c1596d217
Removed warnings on ignored aligns. Only do aligment on packed structs, align(1) struct Packed { ... }
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
658
diff
changeset
|
624 |
|
041c1596d217
Removed warnings on ignored aligns. Only do aligment on packed structs, align(1) struct Packed { ... }
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
658
diff
changeset
|
625 // LDC |
|
041c1596d217
Removed warnings on ignored aligns. Only do aligment on packed structs, align(1) struct Packed { ... }
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
658
diff
changeset
|
626 anonDecl = NULL; |
|
797
340acf1535d0
Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
737
diff
changeset
|
627 offset2 = 0; |
| 159 | 628 } |
| 629 | |
| 630 Dsymbol *VarDeclaration::syntaxCopy(Dsymbol *s) | |
| 631 { | |
| 632 //printf("VarDeclaration::syntaxCopy(%s)\n", toChars()); | |
| 633 | |
| 634 VarDeclaration *sv; | |
| 635 if (s) | |
| 636 { sv = (VarDeclaration *)s; | |
| 637 } | |
| 638 else | |
| 639 { | |
| 640 Initializer *init = NULL; | |
| 641 if (this->init) | |
| 642 { init = this->init->syntaxCopy(); | |
| 643 //init->isExpInitializer()->exp->print(); | |
| 644 //init->isExpInitializer()->exp->dump(0); | |
| 645 } | |
| 646 | |
| 647 sv = new VarDeclaration(loc, type ? type->syntaxCopy() : NULL, ident, init); | |
| 648 sv->storage_class = storage_class; | |
| 649 } | |
| 650 #ifdef _DH | |
| 651 // Syntax copy for header file | |
| 652 if (!htype) // Don't overwrite original | |
| 653 { if (type) // Make copy for both old and new instances | |
| 654 { htype = type->syntaxCopy(); | |
| 655 sv->htype = type->syntaxCopy(); | |
| 656 } | |
| 657 } | |
| 658 else // Make copy of original for new instance | |
| 659 sv->htype = htype->syntaxCopy(); | |
| 660 if (!hinit) | |
| 661 { if (init) | |
| 662 { hinit = init->syntaxCopy(); | |
| 663 sv->hinit = init->syntaxCopy(); | |
| 664 } | |
| 665 } | |
| 666 else | |
| 667 sv->hinit = hinit->syntaxCopy(); | |
| 668 #endif | |
| 669 return sv; | |
| 670 } | |
| 671 | |
| 672 void VarDeclaration::semantic(Scope *sc) | |
| 673 { | |
| 674 //printf("VarDeclaration::semantic('%s', parent = '%s')\n", toChars(), sc->parent->toChars()); | |
| 336 | 675 //printf(" type = %s\n", type ? type->toChars() : "null"); |
| 676 //printf(" stc = x%x\n", sc->stc); | |
| 677 //printf(" storage_class = x%x\n", storage_class); | |
| 159 | 678 //printf("linkage = %d\n", sc->linkage); |
| 679 //if (strcmp(toChars(), "mul") == 0) halt(); | |
| 680 | |
| 681 storage_class |= sc->stc; | |
| 682 if (storage_class & STCextern && init) | |
| 683 error("extern symbols cannot have initializers"); | |
| 684 | |
| 685 /* If auto type inference, do the inference | |
| 686 */ | |
| 687 int inferred = 0; | |
| 688 if (!type) | |
| 689 { inuse++; | |
| 690 type = init->inferType(sc); | |
| 691 inuse--; | |
| 692 inferred = 1; | |
| 693 | |
| 694 /* This is a kludge to support the existing syntax for RAII | |
| 695 * declarations. | |
| 696 */ | |
| 697 storage_class &= ~STCauto; | |
| 698 originalType = type; | |
| 699 } | |
| 700 else | |
| 701 { if (!originalType) | |
| 702 originalType = type; | |
| 703 type = type->semantic(loc, sc); | |
| 704 } | |
| 336 | 705 //printf(" semantic type = %s\n", type ? type->toChars() : "null"); |
| 159 | 706 |
| 707 type->checkDeprecated(loc, sc); | |
| 708 linkage = sc->linkage; | |
| 709 this->parent = sc->parent; | |
| 710 //printf("this = %p, parent = %p, '%s'\n", this, parent, parent->toChars()); | |
| 711 protection = sc->protection; | |
| 712 //printf("sc->stc = %x\n", sc->stc); | |
| 336 | 713 //printf("storage_class = x%x\n", storage_class); |
| 159 | 714 |
| 715 Dsymbol *parent = toParent(); | |
| 716 FuncDeclaration *fd = parent->isFuncDeclaration(); | |
| 717 | |
| 718 Type *tb = type->toBasetype(); | |
| 719 if (tb->ty == Tvoid && !(storage_class & STClazy)) | |
| 720 { error("voids have no value"); | |
| 721 type = Type::terror; | |
| 722 tb = type; | |
| 723 } | |
| 724 if (tb->ty == Tfunction) | |
| 725 { error("cannot be declared to be a function"); | |
| 726 type = Type::terror; | |
| 727 tb = type; | |
| 728 } | |
| 729 if (tb->ty == Tstruct) | |
| 730 { TypeStruct *ts = (TypeStruct *)tb; | |
| 731 | |
| 732 if (!ts->sym->members) | |
| 733 { | |
| 734 error("no definition of struct %s", ts->toChars()); | |
| 735 } | |
| 736 } | |
| 737 | |
| 738 if (tb->ty == Ttuple) | |
| 739 { /* Instead, declare variables for each of the tuple elements | |
| 740 * and add those. | |
| 741 */ | |
| 742 TypeTuple *tt = (TypeTuple *)tb; | |
| 743 size_t nelems = Argument::dim(tt->arguments); | |
| 744 Objects *exps = new Objects(); | |
| 745 exps->setDim(nelems); | |
| 746 Expression *ie = init ? init->toExpression() : NULL; | |
| 747 | |
| 748 for (size_t i = 0; i < nelems; i++) | |
| 749 { Argument *arg = Argument::getNth(tt->arguments, i); | |
| 750 | |
| 751 OutBuffer buf; | |
|
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|
752 buf.printf("_%s_field_%"PRIuSIZE, ident->toChars(), i); |
| 159 | 753 buf.writeByte(0); |
| 754 char *name = (char *)buf.extractData(); | |
| 755 Identifier *id = new Identifier(name, TOKidentifier); | |
| 756 | |
| 757 Expression *einit = ie; | |
| 758 if (ie && ie->op == TOKtuple) | |
| 759 { einit = (Expression *)((TupleExp *)ie)->exps->data[i]; | |
| 760 } | |
| 761 Initializer *ti = init; | |
| 762 if (einit) | |
| 763 { ti = new ExpInitializer(einit->loc, einit); | |
| 764 } | |
| 765 | |
| 766 VarDeclaration *v = new VarDeclaration(loc, arg->type, id, ti); | |
| 767 //printf("declaring field %s of type %s\n", v->toChars(), v->type->toChars()); | |
| 768 v->semantic(sc); | |
| 769 | |
| 770 if (sc->scopesym) | |
| 771 { //printf("adding %s to %s\n", v->toChars(), sc->scopesym->toChars()); | |
| 772 if (sc->scopesym->members) | |
| 773 sc->scopesym->members->push(v); | |
| 774 } | |
| 775 | |
| 776 Expression *e = new DsymbolExp(loc, v); | |
| 777 exps->data[i] = e; | |
| 778 } | |
| 779 TupleDeclaration *v2 = new TupleDeclaration(loc, ident, exps); | |
| 780 v2->isexp = 1; | |
| 781 aliassym = v2; | |
| 782 return; | |
| 783 } | |
| 784 | |
| 785 if (storage_class & STCconst && !init && !fd) | |
| 786 // Initialize by constructor only | |
| 787 storage_class = (storage_class & ~STCconst) | STCctorinit; | |
| 788 | |
| 789 if (isConst()) | |
| 790 { | |
| 791 } | |
| 792 else if (isStatic()) | |
| 793 { | |
| 794 } | |
| 795 else if (isSynchronized()) | |
| 796 { | |
| 797 error("variable %s cannot be synchronized", toChars()); | |
| 798 } | |
| 799 else if (isOverride()) | |
| 800 { | |
| 801 error("override cannot be applied to variable"); | |
| 802 } | |
| 803 else if (isAbstract()) | |
| 804 { | |
| 805 error("abstract cannot be applied to variable"); | |
| 806 } | |
| 807 else if (storage_class & STCtemplateparameter) | |
| 808 { | |
| 809 } | |
| 810 else | |
| 811 { | |
| 812 AggregateDeclaration *aad = sc->anonAgg; | |
| 813 if (!aad) | |
| 814 aad = parent->isAggregateDeclaration(); | |
| 815 if (aad) | |
| 816 { | |
| 817 aad->addField(sc, this); | |
| 818 } | |
| 819 | |
| 820 InterfaceDeclaration *id = parent->isInterfaceDeclaration(); | |
| 821 if (id) | |
| 822 { | |
| 823 error("field not allowed in interface"); | |
| 824 } | |
| 825 | |
| 336 | 826 /* Templates cannot add fields to aggregates |
| 827 */ | |
| 159 | 828 TemplateInstance *ti = parent->isTemplateInstance(); |
| 829 if (ti) | |
| 830 { | |
| 831 // Take care of nested templates | |
| 832 while (1) | |
| 833 { | |
| 834 TemplateInstance *ti2 = ti->tempdecl->parent->isTemplateInstance(); | |
| 835 if (!ti2) | |
| 836 break; | |
| 837 ti = ti2; | |
| 838 } | |
| 839 | |
| 840 // If it's a member template | |
| 841 AggregateDeclaration *ad = ti->tempdecl->isMember(); | |
| 842 if (ad && storage_class != STCundefined) | |
| 843 { | |
| 844 error("cannot use template to add field to aggregate '%s'", ad->toChars()); | |
| 845 } | |
| 846 } | |
| 847 } | |
| 848 | |
| 849 if (type->isauto() && !noauto) | |
| 850 { | |
| 851 if (storage_class & (STCfield | STCout | STCref | STCstatic) || !fd) | |
| 852 { | |
| 853 error("globals, statics, fields, ref and out parameters cannot be auto"); | |
| 854 } | |
| 855 | |
| 856 if (!(storage_class & (STCauto | STCscope))) | |
| 857 { | |
| 858 if (!(storage_class & STCparameter) && ident != Id::withSym) | |
| 859 error("reference to scope class must be scope"); | |
| 860 } | |
| 861 } | |
| 862 | |
| 863 if (!init && !sc->inunion && !isStatic() && !isConst() && fd && | |
| 864 !(storage_class & (STCfield | STCin | STCforeach)) && | |
| 865 type->size() != 0) | |
| 866 { | |
| 867 // Provide a default initializer | |
| 868 //printf("Providing default initializer for '%s'\n", toChars()); | |
| 869 if (type->ty == Tstruct && | |
| 870 ((TypeStruct *)type)->sym->zeroInit == 1) | |
| 871 { /* If a struct is all zeros, as a special case | |
| 872 * set it's initializer to the integer 0. | |
| 873 * In AssignExp::toElem(), we check for this and issue | |
| 874 * a memset() to initialize the struct. | |
| 875 * Must do same check in interpreter. | |
| 876 */ | |
| 877 Expression *e = new IntegerExp(loc, 0, Type::tint32); | |
| 878 Expression *e1; | |
| 879 e1 = new VarExp(loc, this); | |
| 880 e = new AssignExp(loc, e1, e); | |
| 881 e->type = e1->type; | |
| 882 init = new ExpInitializer(loc, e/*->type->defaultInit()*/); | |
| 883 return; | |
| 884 } | |
| 885 else if (type->ty == Ttypedef) | |
| 886 { TypeTypedef *td = (TypeTypedef *)type; | |
| 887 if (td->sym->init) | |
| 888 { init = td->sym->init; | |
| 889 ExpInitializer *ie = init->isExpInitializer(); | |
| 890 if (ie) | |
| 891 // Make copy so we can modify it | |
| 892 init = new ExpInitializer(ie->loc, ie->exp); | |
| 893 } | |
| 894 else | |
| 895 init = getExpInitializer(); | |
| 896 } | |
| 897 else | |
| 898 { | |
| 899 init = getExpInitializer(); | |
| 900 } | |
| 901 } | |
| 902 | |
| 903 if (init) | |
| 904 { | |
|
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905 sc = sc->push(); |
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parents:
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906 sc->stc &= ~(STCconst | STCinvariant | STCpure); |
|
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parents:
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changeset
|
907 |
| 159 | 908 ArrayInitializer *ai = init->isArrayInitializer(); |
| 909 if (ai && tb->ty == Taarray) | |
| 910 { | |
| 911 init = ai->toAssocArrayInitializer(); | |
| 912 } | |
| 913 | |
| 914 StructInitializer *si = init->isStructInitializer(); | |
| 915 ExpInitializer *ei = init->isExpInitializer(); | |
| 916 | |
| 917 // See if we can allocate on the stack | |
| 918 if (ei && isScope() && ei->exp->op == TOKnew) | |
| 919 { NewExp *ne = (NewExp *)ei->exp; | |
| 920 if (!(ne->newargs && ne->newargs->dim)) | |
| 921 { ne->onstack = 1; | |
| 922 onstack = 1; | |
| 923 if (type->isBaseOf(ne->newtype->semantic(loc, sc), NULL)) | |
| 924 onstack = 2; | |
| 925 } | |
| 926 } | |
| 927 | |
| 928 // If inside function, there is no semantic3() call | |
| 929 if (sc->func) | |
| 930 { | |
| 931 // If local variable, use AssignExp to handle all the various | |
| 932 // possibilities. | |
| 933 if (fd && !isStatic() && !isConst() && !init->isVoidInitializer()) | |
| 934 { | |
| 935 //printf("fd = '%s', var = '%s'\n", fd->toChars(), toChars()); | |
| 936 if (!ei) | |
| 937 { | |
| 938 Expression *e = init->toExpression(); | |
| 939 if (!e) | |
| 940 { | |
| 941 init = init->semantic(sc, type); | |
| 942 e = init->toExpression(); | |
| 943 if (!e) | |
| 944 { error("is not a static and cannot have static initializer"); | |
| 945 return; | |
| 946 } | |
| 947 } | |
| 948 ei = new ExpInitializer(init->loc, e); | |
| 949 init = ei; | |
| 950 } | |
| 951 | |
| 336 | 952 Expression *e1 = new VarExp(loc, this); |
| 159 | 953 |
| 336 | 954 Type *t = type->toBasetype(); |
| 159 | 955 if (t->ty == Tsarray) |
| 956 { | |
| 957 ei->exp = ei->exp->semantic(sc); | |
| 958 if (!ei->exp->implicitConvTo(type)) | |
| 959 { | |
| 336 | 960 int dim = ((TypeSArray *)t)->dim->toInteger(); |
| 159 | 961 // If multidimensional static array, treat as one large array |
| 962 while (1) | |
| 963 { | |
| 964 t = t->nextOf()->toBasetype(); | |
| 965 if (t->ty != Tsarray) | |
| 966 break; | |
| 967 dim *= ((TypeSArray *)t)->dim->toInteger(); | |
| 968 e1->type = new TypeSArray(t->nextOf(), new IntegerExp(0, dim, Type::tindex)); | |
| 969 } | |
| 970 } | |
| 971 e1 = new SliceExp(loc, e1, NULL, NULL); | |
| 972 } | |
| 973 else if (t->ty == Tstruct) | |
| 974 { | |
| 975 ei->exp = ei->exp->semantic(sc); | |
| 976 if (!ei->exp->implicitConvTo(type)) | |
| 977 ei->exp = new CastExp(loc, ei->exp, type); | |
| 978 } | |
| 979 ei->exp = new AssignExp(loc, e1, ei->exp); | |
| 980 ei->exp->op = TOKconstruct; | |
| 981 canassign++; | |
| 982 ei->exp = ei->exp->semantic(sc); | |
| 983 canassign--; | |
| 984 ei->exp->optimize(WANTvalue); | |
| 985 } | |
| 986 else | |
| 987 { | |
| 988 init = init->semantic(sc, type); | |
| 989 if (fd && isConst() && !isStatic()) | |
| 990 { // Make it static | |
| 991 storage_class |= STCstatic; | |
| 992 } | |
| 993 } | |
| 994 } | |
| 995 else if (isConst() || isFinal()) | |
| 996 { | |
| 997 /* Because we may need the results of a const declaration in a | |
| 998 * subsequent type, such as an array dimension, before semantic2() | |
| 999 * gets ordinarily run, try to run semantic2() now. | |
| 1000 * Ignore failure. | |
| 1001 */ | |
| 1002 | |
| 1003 if (!global.errors && !inferred) | |
| 1004 { | |
| 1005 unsigned errors = global.errors; | |
| 1006 global.gag++; | |
| 1007 //printf("+gag\n"); | |
| 1008 Expression *e; | |
| 1009 Initializer *i2 = init; | |
| 1010 inuse++; | |
| 1011 if (ei) | |
| 1012 { | |
| 1013 e = ei->exp->syntaxCopy(); | |
| 1014 e = e->semantic(sc); | |
| 1015 e = e->implicitCastTo(sc, type); | |
| 1016 } | |
| 1017 else if (si || ai) | |
| 1018 { i2 = init->syntaxCopy(); | |
| 1019 i2 = i2->semantic(sc, type); | |
| 1020 } | |
| 1021 inuse--; | |
| 1022 global.gag--; | |
| 1023 //printf("-gag\n"); | |
| 1024 if (errors != global.errors) // if errors happened | |
| 1025 { | |
| 1026 if (global.gag == 0) | |
| 1027 global.errors = errors; // act as if nothing happened | |
| 1028 } | |
| 1029 else if (ei) | |
| 1030 { | |
| 1031 e = e->optimize(WANTvalue | WANTinterpret); | |
| 1032 if (e->op == TOKint64 || e->op == TOKstring) | |
| 1033 { | |
| 1034 ei->exp = e; // no errors, keep result | |
| 1035 } | |
| 1036 } | |
| 1037 else | |
| 1038 init = i2; // no errors, keep result | |
| 1039 } | |
| 1040 } | |
|
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|
1041 sc = sc->pop(); |
| 159 | 1042 } |
| 1043 } | |
| 1044 | |
| 1045 ExpInitializer *VarDeclaration::getExpInitializer() | |
| 1046 { | |
| 1047 ExpInitializer *ei; | |
| 1048 | |
| 1049 if (init) | |
| 1050 ei = init->isExpInitializer(); | |
| 1051 else | |
| 1052 { | |
| 336 | 1053 Expression *e = type->defaultInit(loc); |
| 159 | 1054 if (e) |
| 1055 ei = new ExpInitializer(loc, e); | |
| 1056 else | |
| 1057 ei = NULL; | |
| 1058 } | |
| 1059 return ei; | |
| 1060 } | |
| 1061 | |
| 1062 void VarDeclaration::semantic2(Scope *sc) | |
| 1063 { | |
| 1064 //printf("VarDeclaration::semantic2('%s')\n", toChars()); | |
| 1065 if (init && !toParent()->isFuncDeclaration()) | |
| 1066 { inuse++; | |
| 1067 #if 0 | |
| 1068 ExpInitializer *ei = init->isExpInitializer(); | |
| 1069 if (ei) | |
| 1070 { | |
| 1071 ei->exp->dump(0); | |
| 1072 printf("type = %p\n", ei->exp->type); | |
| 1073 } | |
| 1074 #endif | |
| 1075 init = init->semantic(sc, type); | |
| 1076 inuse--; | |
| 1077 } | |
| 1078 } | |
| 1079 | |
| 336 | 1080 const char *VarDeclaration::kind() |
| 159 | 1081 { |
| 1082 return "variable"; | |
| 1083 } | |
| 1084 | |
| 1085 Dsymbol *VarDeclaration::toAlias() | |
| 1086 { | |
| 1087 //printf("VarDeclaration::toAlias('%s', this = %p, aliassym = %p)\n", toChars(), this, aliassym); | |
| 1088 assert(this != aliassym); | |
| 1089 Dsymbol *s = aliassym ? aliassym->toAlias() : this; | |
| 1090 return s; | |
| 1091 } | |
| 1092 | |
| 1093 void VarDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1094 { | |
| 1095 if (storage_class & STCconst) | |
| 1096 buf->writestring("const "); | |
| 1097 if (storage_class & STCstatic) | |
| 1098 buf->writestring("static "); | |
| 336 | 1099 if (storage_class & STCauto) |
| 1100 buf->writestring("auto "); | |
| 1101 #if DMDV2 | |
| 1102 if (storage_class & STCmanifest) | |
| 1103 buf->writestring("manifest "); | |
| 1104 if (storage_class & STCinvariant) | |
| 1105 buf->writestring("invariant "); | |
| 1106 if (storage_class & STCtls) | |
| 1107 buf->writestring("__thread "); | |
| 1108 #endif | |
| 1109 | |
| 159 | 1110 if (type) |
| 1111 type->toCBuffer(buf, ident, hgs); | |
| 1112 else | |
| 1113 buf->writestring(ident->toChars()); | |
| 1114 if (init) | |
| 1115 { buf->writestring(" = "); | |
| 1116 init->toCBuffer(buf, hgs); | |
| 1117 } | |
| 1118 buf->writeByte(';'); | |
| 1119 buf->writenl(); | |
| 1120 } | |
| 1121 | |
| 1122 int VarDeclaration::needThis() | |
| 1123 { | |
| 1124 //printf("VarDeclaration::needThis(%s, x%x)\n", toChars(), storage_class); | |
| 1125 return storage_class & STCfield; | |
| 1126 } | |
| 1127 | |
| 1128 int VarDeclaration::isImportedSymbol() | |
| 1129 { | |
| 1130 if (protection == PROTexport && !init && (isStatic() || isConst() || parent->isModule())) | |
| 1131 return TRUE; | |
| 1132 return FALSE; | |
| 1133 } | |
| 1134 | |
| 1135 void VarDeclaration::checkCtorConstInit() | |
| 1136 { | |
| 1137 if (ctorinit == 0 && isCtorinit() && !(storage_class & STCfield)) | |
| 1138 error("missing initializer in static constructor for const variable"); | |
| 1139 } | |
| 1140 | |
| 1141 /************************************ | |
| 336 | 1142 * Check to see if this variable is actually in an enclosing function |
| 1143 * rather than the current one. | |
| 159 | 1144 */ |
| 1145 | |
| 1146 void VarDeclaration::checkNestedReference(Scope *sc, Loc loc) | |
| 1147 { | |
| 336 | 1148 //printf("VarDeclaration::checkNestedReference() %s\n", toChars()); |
| 159 | 1149 if (parent && !isDataseg() && parent != sc->parent) |
| 1150 { | |
| 336 | 1151 // The function that this variable is in |
| 159 | 1152 FuncDeclaration *fdv = toParent()->isFuncDeclaration(); |
| 336 | 1153 // The current function |
| 159 | 1154 FuncDeclaration *fdthis = sc->parent->isFuncDeclaration(); |
| 1155 | |
| 1156 if (fdv && fdthis) | |
| 1157 { | |
| 1158 if (loc.filename) | |
| 1159 fdthis->getLevel(loc, fdv); | |
| 1160 nestedref = 1; | |
| 1161 fdv->nestedFrameRef = 1; | |
| 1162 fdv->nestedVars.insert(this); | |
| 1163 //printf("var %s in function %s is nested ref\n", toChars(), fdv->toChars()); | |
| 1164 } | |
| 1165 } | |
| 1166 } | |
| 1167 | |
| 1168 /******************************* | |
| 1169 * Does symbol go into data segment? | |
| 336 | 1170 * Includes extern variables. |
| 159 | 1171 */ |
| 1172 | |
| 1173 int VarDeclaration::isDataseg() | |
| 1174 { | |
| 1175 #if 0 | |
| 1176 printf("VarDeclaration::isDataseg(%p, '%s')\n", this, toChars()); | |
| 1177 printf("%x, %p, %p\n", storage_class & (STCstatic | STCconst), parent->isModule(), parent->isTemplateInstance()); | |
| 1178 printf("parent = '%s'\n", parent->toChars()); | |
| 1179 #endif | |
| 1180 Dsymbol *parent = this->toParent(); | |
| 1181 if (!parent && !(storage_class & (STCstatic | STCconst))) | |
| 1182 { error("forward referenced"); | |
| 1183 type = Type::terror; | |
| 1184 return 0; | |
| 1185 } | |
| 1186 return (storage_class & (STCstatic | STCconst) || | |
| 1187 parent->isModule() || | |
| 1188 parent->isTemplateInstance()); | |
| 1189 } | |
| 1190 | |
| 1191 int VarDeclaration::hasPointers() | |
| 1192 { | |
| 1193 return (!isDataseg() && type->hasPointers()); | |
| 1194 } | |
| 1195 | |
| 1196 /****************************************** | |
| 1197 * If a variable has an auto destructor call, return call for it. | |
| 1198 * Otherwise, return NULL. | |
| 1199 */ | |
| 1200 | |
| 1201 Expression *VarDeclaration::callAutoDtor() | |
| 1202 { Expression *e = NULL; | |
| 1203 | |
| 1204 //printf("VarDeclaration::callAutoDtor() %s\n", toChars()); | |
| 1205 if (storage_class & (STCauto | STCscope) && !noauto) | |
| 1206 { | |
| 1207 for (ClassDeclaration *cd = type->isClassHandle(); | |
| 1208 cd; | |
| 1209 cd = cd->baseClass) | |
| 1210 { | |
| 1211 /* We can do better if there's a way with onstack | |
| 1212 * classes to determine if there's no way the monitor | |
| 1213 * could be set. | |
| 1214 */ | |
| 1215 //if (cd->isInterfaceDeclaration()) | |
| 1216 //error("interface %s cannot be scope", cd->toChars()); | |
| 1217 if (1 || onstack || cd->dtors.dim) // if any destructors | |
| 1218 { | |
| 1219 // delete this; | |
| 1220 Expression *ec; | |
| 1221 | |
| 1222 ec = new VarExp(loc, this); | |
| 1223 e = new DeleteExp(loc, ec); | |
| 1224 e->type = Type::tvoid; | |
| 1225 break; | |
| 1226 } | |
| 1227 } | |
| 1228 } | |
| 1229 return e; | |
| 1230 } | |
| 1231 | |
| 1232 | |
| 1233 /********************************* ClassInfoDeclaration ****************************/ | |
| 1234 | |
| 1235 ClassInfoDeclaration::ClassInfoDeclaration(ClassDeclaration *cd) | |
| 1236 : VarDeclaration(0, ClassDeclaration::classinfo->type, cd->ident, NULL) | |
| 1237 { | |
| 1238 this->cd = cd; | |
| 1239 storage_class = STCstatic; | |
| 1240 } | |
| 1241 | |
| 1242 Dsymbol *ClassInfoDeclaration::syntaxCopy(Dsymbol *s) | |
| 1243 { | |
| 1244 assert(0); // should never be produced by syntax | |
| 1245 return NULL; | |
| 1246 } | |
| 1247 | |
| 1248 void ClassInfoDeclaration::semantic(Scope *sc) | |
| 1249 { | |
| 1250 } | |
| 1251 | |
| 1252 /********************************* ModuleInfoDeclaration ****************************/ | |
| 1253 | |
| 1254 ModuleInfoDeclaration::ModuleInfoDeclaration(Module *mod) | |
| 1255 : VarDeclaration(0, Module::moduleinfo->type, mod->ident, NULL) | |
| 1256 { | |
| 1257 this->mod = mod; | |
| 1258 storage_class = STCstatic; | |
| 1259 } | |
| 1260 | |
| 1261 Dsymbol *ModuleInfoDeclaration::syntaxCopy(Dsymbol *s) | |
| 1262 { | |
| 1263 assert(0); // should never be produced by syntax | |
| 1264 return NULL; | |
| 1265 } | |
| 1266 | |
| 1267 void ModuleInfoDeclaration::semantic(Scope *sc) | |
| 1268 { | |
| 1269 } | |
| 1270 | |
| 1271 /********************************* TypeInfoDeclaration ****************************/ | |
| 1272 | |
| 1273 TypeInfoDeclaration::TypeInfoDeclaration(Type *tinfo, int internal) | |
| 1274 : VarDeclaration(0, Type::typeinfo->type, tinfo->getTypeInfoIdent(internal), NULL) | |
| 1275 { | |
| 1276 this->tinfo = tinfo; | |
| 1277 storage_class = STCstatic; | |
| 1278 protection = PROTpublic; | |
| 1279 linkage = LINKc; | |
| 1280 } | |
| 1281 | |
| 1282 Dsymbol *TypeInfoDeclaration::syntaxCopy(Dsymbol *s) | |
| 1283 { | |
| 1284 assert(0); // should never be produced by syntax | |
| 1285 return NULL; | |
| 1286 } | |
| 1287 | |
| 1288 void TypeInfoDeclaration::semantic(Scope *sc) | |
| 1289 { | |
| 1290 assert(linkage == LINKc); | |
| 1291 } | |
| 1292 | |
| 1293 /***************************** TypeInfoConstDeclaration **********************/ | |
| 1294 | |
| 336 | 1295 #if DMDV2 |
| 159 | 1296 TypeInfoConstDeclaration::TypeInfoConstDeclaration(Type *tinfo) |
| 1297 : TypeInfoDeclaration(tinfo, 0) | |
| 1298 { | |
| 1299 } | |
| 1300 #endif | |
| 1301 | |
| 1302 /***************************** TypeInfoInvariantDeclaration **********************/ | |
| 1303 | |
| 336 | 1304 #if DMDV2 |
| 159 | 1305 TypeInfoInvariantDeclaration::TypeInfoInvariantDeclaration(Type *tinfo) |
| 1306 : TypeInfoDeclaration(tinfo, 0) | |
| 1307 { | |
| 1308 } | |
| 1309 #endif | |
| 1310 | |
| 1311 /***************************** TypeInfoStructDeclaration **********************/ | |
| 1312 | |
| 1313 TypeInfoStructDeclaration::TypeInfoStructDeclaration(Type *tinfo) | |
| 1314 : TypeInfoDeclaration(tinfo, 0) | |
| 1315 { | |
| 1316 } | |
| 1317 | |
| 1318 /***************************** TypeInfoClassDeclaration ***********************/ | |
| 1319 | |
| 1320 TypeInfoClassDeclaration::TypeInfoClassDeclaration(Type *tinfo) | |
| 1321 : TypeInfoDeclaration(tinfo, 0) | |
| 1322 { | |
| 1323 } | |
| 1324 | |
| 1325 /***************************** TypeInfoInterfaceDeclaration *******************/ | |
| 1326 | |
| 1327 TypeInfoInterfaceDeclaration::TypeInfoInterfaceDeclaration(Type *tinfo) | |
| 1328 : TypeInfoDeclaration(tinfo, 0) | |
| 1329 { | |
| 1330 } | |
| 1331 | |
| 1332 /***************************** TypeInfoTypedefDeclaration *********************/ | |
| 1333 | |
| 1334 TypeInfoTypedefDeclaration::TypeInfoTypedefDeclaration(Type *tinfo) | |
| 1335 : TypeInfoDeclaration(tinfo, 0) | |
| 1336 { | |
| 1337 } | |
| 1338 | |
| 1339 /***************************** TypeInfoPointerDeclaration *********************/ | |
| 1340 | |
| 1341 TypeInfoPointerDeclaration::TypeInfoPointerDeclaration(Type *tinfo) | |
| 1342 : TypeInfoDeclaration(tinfo, 0) | |
| 1343 { | |
| 1344 } | |
| 1345 | |
| 1346 /***************************** TypeInfoArrayDeclaration ***********************/ | |
| 1347 | |
| 1348 TypeInfoArrayDeclaration::TypeInfoArrayDeclaration(Type *tinfo) | |
| 1349 : TypeInfoDeclaration(tinfo, 0) | |
| 1350 { | |
| 1351 } | |
| 1352 | |
| 1353 /***************************** TypeInfoStaticArrayDeclaration *****************/ | |
| 1354 | |
| 1355 TypeInfoStaticArrayDeclaration::TypeInfoStaticArrayDeclaration(Type *tinfo) | |
| 1356 : TypeInfoDeclaration(tinfo, 0) | |
| 1357 { | |
| 1358 } | |
| 1359 | |
| 1360 /***************************** TypeInfoAssociativeArrayDeclaration ************/ | |
| 1361 | |
| 1362 TypeInfoAssociativeArrayDeclaration::TypeInfoAssociativeArrayDeclaration(Type *tinfo) | |
| 1363 : TypeInfoDeclaration(tinfo, 0) | |
| 1364 { | |
| 1365 } | |
| 1366 | |
| 1367 /***************************** TypeInfoEnumDeclaration ***********************/ | |
| 1368 | |
| 1369 TypeInfoEnumDeclaration::TypeInfoEnumDeclaration(Type *tinfo) | |
| 1370 : TypeInfoDeclaration(tinfo, 0) | |
| 1371 { | |
| 1372 } | |
| 1373 | |
| 1374 /***************************** TypeInfoFunctionDeclaration ********************/ | |
| 1375 | |
| 1376 TypeInfoFunctionDeclaration::TypeInfoFunctionDeclaration(Type *tinfo) | |
| 1377 : TypeInfoDeclaration(tinfo, 0) | |
| 1378 { | |
| 1379 } | |
| 1380 | |
| 1381 /***************************** TypeInfoDelegateDeclaration ********************/ | |
| 1382 | |
| 1383 TypeInfoDelegateDeclaration::TypeInfoDelegateDeclaration(Type *tinfo) | |
| 1384 : TypeInfoDeclaration(tinfo, 0) | |
| 1385 { | |
| 1386 } | |
| 1387 | |
| 1388 /***************************** TypeInfoTupleDeclaration **********************/ | |
| 1389 | |
| 1390 TypeInfoTupleDeclaration::TypeInfoTupleDeclaration(Type *tinfo) | |
| 1391 : TypeInfoDeclaration(tinfo, 0) | |
| 1392 { | |
| 1393 } | |
| 1394 | |
| 1395 /********************************* ThisDeclaration ****************************/ | |
| 1396 | |
| 1397 // For the "this" parameter to member functions | |
| 1398 | |
| 1399 ThisDeclaration::ThisDeclaration(Type *t) | |
| 1400 : VarDeclaration(0, t, Id::This, NULL) | |
| 1401 { | |
| 1402 noauto = 1; | |
| 1403 } | |
| 1404 | |
| 1405 Dsymbol *ThisDeclaration::syntaxCopy(Dsymbol *s) | |
| 1406 { | |
| 1407 assert(0); // should never be produced by syntax | |
| 1408 return NULL; | |
| 1409 } | |
| 1410 | |
| 1411 |