Mercurial > projects > ldc
annotate dmd/func.c @ 11:d3ee9efe20e2 trunk
[svn r15] * Fixed a bunch problems with virtual calls. Seems I did some rather poor testing.
* Now 50/51 tests compile.
* Added a simple runalltests.d scripts that should be run with 'gdmd -run runalltests.d' - LLVMDC will not compile it yet.
| author | lindquist |
|---|---|
| date | Tue, 02 Oct 2007 05:10:18 +0200 |
| parents | c53b6e3fe49a |
| children | 37a4fdab33fc |
| 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 <assert.h> | |
| 13 | |
| 14 #include "mars.h" | |
| 15 #include "init.h" | |
| 16 #include "declaration.h" | |
| 17 #include "attrib.h" | |
| 18 #include "expression.h" | |
| 19 #include "scope.h" | |
| 20 #include "mtype.h" | |
| 21 #include "aggregate.h" | |
| 22 #include "identifier.h" | |
| 23 #include "id.h" | |
| 24 #include "module.h" | |
| 25 #include "statement.h" | |
| 26 #include "template.h" | |
| 27 #include "hdrgen.h" | |
| 28 | |
| 29 #ifdef IN_GCC | |
| 30 #include "d-dmd-gcc.h" | |
| 31 #endif | |
| 32 | |
| 33 /********************************* FuncDeclaration ****************************/ | |
| 34 | |
| 35 FuncDeclaration::FuncDeclaration(Loc loc, Loc endloc, Identifier *id, enum STC storage_class, Type *type) | |
| 36 : Declaration(id) | |
| 37 { | |
| 38 this->storage_class = storage_class; | |
| 39 this->type = type; | |
| 40 this->loc = loc; | |
| 41 this->endloc = endloc; | |
| 42 fthrows = NULL; | |
| 43 frequire = NULL; | |
| 44 outId = NULL; | |
| 45 vresult = NULL; | |
| 46 returnLabel = NULL; | |
| 47 fensure = NULL; | |
| 48 fbody = NULL; | |
| 49 localsymtab = NULL; | |
| 50 vthis = NULL; | |
| 51 v_arguments = NULL; | |
| 52 #if IN_GCC | |
| 53 v_argptr = NULL; | |
| 54 #endif | |
| 55 parameters = NULL; | |
| 56 labtab = NULL; | |
| 57 overnext = NULL; | |
| 58 vtblIndex = -1; | |
| 59 hasReturnExp = 0; | |
| 60 naked = 0; | |
| 61 inlineStatus = ILSuninitialized; | |
| 62 inlineNest = 0; | |
| 63 inlineAsm = 0; | |
| 64 cantInterpret = 0; | |
| 65 semanticRun = 0; | |
| 66 nestedFrameRef = 0; | |
| 67 fes = NULL; | |
| 68 introducing = 0; | |
| 69 tintro = NULL; | |
| 70 inferRetType = (type && type->nextOf() == NULL); | |
| 71 scope = NULL; | |
| 72 hasReturnExp = 0; | |
| 73 nrvo_can = 1; | |
| 74 nrvo_var = NULL; | |
| 75 shidden = NULL; | |
|
11
d3ee9efe20e2
[svn r15] * Fixed a bunch problems with virtual calls. Seems I did some rather poor testing.
lindquist
parents:
1
diff
changeset
|
76 llvmQueued = false; |
| 1 | 77 } |
| 78 | |
| 79 Dsymbol *FuncDeclaration::syntaxCopy(Dsymbol *s) | |
| 80 { | |
| 81 FuncDeclaration *f; | |
| 82 | |
| 83 //printf("FuncDeclaration::syntaxCopy('%s')\n", toChars()); | |
| 84 if (s) | |
| 85 f = (FuncDeclaration *)s; | |
| 86 else | |
| 87 f = new FuncDeclaration(loc, endloc, ident, (enum STC) storage_class, type->syntaxCopy()); | |
| 88 f->outId = outId; | |
| 89 f->frequire = frequire ? frequire->syntaxCopy() : NULL; | |
| 90 f->fensure = fensure ? fensure->syntaxCopy() : NULL; | |
| 91 f->fbody = fbody ? fbody->syntaxCopy() : NULL; | |
| 92 assert(!fthrows); // deprecated | |
| 93 return f; | |
| 94 } | |
| 95 | |
| 96 | |
| 97 // Do the semantic analysis on the external interface to the function. | |
| 98 | |
| 99 void FuncDeclaration::semantic(Scope *sc) | |
| 100 { TypeFunction *f; | |
| 101 StructDeclaration *sd; | |
| 102 ClassDeclaration *cd; | |
| 103 InterfaceDeclaration *id; | |
| 104 | |
| 105 #if 0 | |
| 106 printf("FuncDeclaration::semantic(sc = %p, this = %p, '%s', linkage = %d)\n", sc, this, toPrettyChars(), sc->linkage); | |
| 107 if (isFuncLiteralDeclaration()) | |
| 108 printf("\tFuncLiteralDeclaration()\n"); | |
| 109 printf("sc->parent = %s\n", sc->parent->toChars()); | |
| 110 printf("type: %s\n", type->toChars()); | |
| 111 #endif | |
| 112 | |
| 113 if (type->nextOf()) | |
| 114 type = type->semantic(loc, sc); | |
| 115 //type->print(); | |
| 116 if (type->ty != Tfunction) | |
| 117 { | |
| 118 error("%s must be a function", toChars()); | |
| 119 return; | |
| 120 } | |
| 121 f = (TypeFunction *)(type); | |
| 122 size_t nparams = Argument::dim(f->parameters); | |
| 123 | |
| 124 linkage = sc->linkage; | |
| 125 // if (!parent) | |
| 126 { | |
| 127 //parent = sc->scopesym; | |
| 128 parent = sc->parent; | |
| 129 } | |
| 130 protection = sc->protection; | |
| 131 storage_class |= sc->stc; | |
| 132 //printf("function storage_class = x%x\n", storage_class); | |
| 133 Dsymbol *parent = toParent(); | |
| 134 | |
| 135 if (isConst() || isAuto() || isScope()) | |
| 136 error("functions cannot be const or auto"); | |
| 137 | |
| 138 if (isAbstract() && !isVirtual()) | |
| 139 error("non-virtual functions cannot be abstract"); | |
| 140 #if 0 | |
| 141 if (isAbstract() && fbody) | |
| 142 error("abstract functions cannot have bodies"); | |
| 143 #endif | |
| 144 | |
| 145 #if 0 | |
| 146 if (isStaticConstructor() || isStaticDestructor()) | |
| 147 { | |
| 148 if (!isStatic() || type->nextOf()->ty != Tvoid) | |
| 149 error("static constructors / destructors must be static void"); | |
| 150 if (f->arguments && f->arguments->dim) | |
| 151 error("static constructors / destructors must have empty parameter list"); | |
| 152 // BUG: check for invalid storage classes | |
| 153 } | |
| 154 #endif | |
| 155 | |
| 156 #ifdef IN_GCC | |
| 157 AggregateDeclaration *ad; | |
| 158 | |
| 159 ad = parent->isAggregateDeclaration(); | |
| 160 if (ad) | |
| 161 ad->methods.push(this); | |
| 162 #endif | |
| 163 sd = parent->isStructDeclaration(); | |
| 164 if (sd) | |
| 165 { | |
| 166 // Verify no constructors, destructors, etc. | |
| 167 if (isCtorDeclaration() || | |
| 168 isDtorDeclaration() | |
| 169 //|| isInvariantDeclaration() | |
| 170 //|| isUnitTestDeclaration() | |
| 171 ) | |
| 172 { | |
| 173 error("special member functions not allowed for %ss", sd->kind()); | |
| 174 } | |
| 175 | |
| 176 #if 0 | |
| 177 if (!sd->inv) | |
| 178 sd->inv = isInvariantDeclaration(); | |
| 179 | |
| 180 if (!sd->aggNew) | |
| 181 sd->aggNew = isNewDeclaration(); | |
| 182 | |
| 183 if (isDelete()) | |
| 184 { | |
| 185 if (sd->aggDelete) | |
| 186 error("multiple delete's for struct %s", sd->toChars()); | |
| 187 sd->aggDelete = (DeleteDeclaration *)(this); | |
| 188 } | |
| 189 #endif | |
| 190 } | |
| 191 | |
| 192 id = parent->isInterfaceDeclaration(); | |
| 193 if (id) | |
| 194 { | |
| 195 storage_class |= STCabstract; | |
| 196 | |
| 197 if (isCtorDeclaration() || | |
| 198 isDtorDeclaration() || | |
| 199 isInvariantDeclaration() || | |
| 200 isUnitTestDeclaration() || isNewDeclaration() || isDelete()) | |
| 201 error("special function not allowed in interface %s", id->toChars()); | |
| 202 if (fbody) | |
| 203 error("function body is not abstract in interface %s", id->toChars()); | |
| 204 } | |
| 205 | |
| 206 cd = parent->isClassDeclaration(); | |
| 207 if (cd) | |
| 208 { int vi; | |
| 209 CtorDeclaration *ctor; | |
| 210 DtorDeclaration *dtor; | |
| 211 InvariantDeclaration *inv; | |
| 212 | |
| 213 if (isCtorDeclaration()) | |
| 214 { | |
| 215 // ctor = (CtorDeclaration *)this; | |
| 216 // if (!cd->ctor) | |
| 217 // cd->ctor = ctor; | |
| 218 return; | |
| 219 } | |
| 220 | |
| 221 #if 0 | |
| 222 dtor = isDtorDeclaration(); | |
| 223 if (dtor) | |
| 224 { | |
| 225 if (cd->dtor) | |
| 226 error("multiple destructors for class %s", cd->toChars()); | |
| 227 cd->dtor = dtor; | |
| 228 } | |
| 229 | |
| 230 inv = isInvariantDeclaration(); | |
| 231 if (inv) | |
| 232 { | |
| 233 cd->inv = inv; | |
| 234 } | |
| 235 | |
| 236 if (isNewDeclaration()) | |
| 237 { | |
| 238 if (!cd->aggNew) | |
| 239 cd->aggNew = (NewDeclaration *)(this); | |
| 240 } | |
| 241 | |
| 242 if (isDelete()) | |
| 243 { | |
| 244 if (cd->aggDelete) | |
| 245 error("multiple delete's for class %s", cd->toChars()); | |
| 246 cd->aggDelete = (DeleteDeclaration *)(this); | |
| 247 } | |
| 248 #endif | |
| 249 | |
| 250 if (storage_class & STCabstract) | |
| 251 cd->isabstract = 1; | |
| 252 | |
| 253 // if static function, do not put in vtbl[] | |
| 254 if (!isVirtual()) | |
| 255 { | |
| 256 //printf("\tnot virtual\n"); | |
| 257 return; | |
| 258 } | |
| 259 | |
| 260 // Find index of existing function in vtbl[] to override | |
| 261 if (cd->baseClass) | |
| 262 { | |
| 263 for (vi = 0; vi < cd->baseClass->vtbl.dim; vi++) | |
| 264 { | |
| 265 FuncDeclaration *fdv = ((Dsymbol *)cd->vtbl.data[vi])->isFuncDeclaration(); | |
| 266 | |
| 267 // BUG: should give error if argument types match, | |
| 268 // but return type does not? | |
| 269 | |
| 270 //printf("\tvtbl[%d] = '%s'\n", vi, fdv ? fdv->ident->toChars() : ""); | |
| 271 if (fdv && fdv->ident == ident) | |
| 272 { | |
| 273 int cov = type->covariant(fdv->type); | |
| 274 //printf("\tbaseclass cov = %d\n", cov); | |
| 275 if (cov == 2) | |
| 276 { | |
| 277 //type->print(); | |
| 278 //fdv->type->print(); | |
| 279 //printf("%s %s\n", type->deco, fdv->type->deco); | |
| 280 error("of type %s overrides but is not covariant with %s of type %s", | |
| 281 type->toChars(), fdv->toPrettyChars(), fdv->type->toChars()); | |
| 282 } | |
| 283 if (cov == 1) | |
| 284 { | |
| 285 if (fdv->isFinal()) | |
| 286 error("cannot override final function %s", fdv->toPrettyChars()); | |
| 287 if (fdv->toParent() == parent) | |
| 288 { | |
| 289 // If both are mixins, then error. | |
| 290 // If either is not, the one that is not overrides | |
| 291 // the other. | |
| 292 if (fdv->parent->isClassDeclaration()) | |
| 293 goto L1; | |
| 294 if (!this->parent->isClassDeclaration() | |
| 295 #if !BREAKABI | |
| 296 && !isDtorDeclaration() | |
| 297 #endif | |
| 298 ) | |
| 299 error("multiple overrides of same function"); | |
| 300 } | |
| 301 cd->vtbl.data[vi] = (void *)this; | |
| 302 vtblIndex = vi; | |
| 303 | |
| 304 /* This works by whenever this function is called, | |
| 305 * it actually returns tintro, which gets dynamically | |
| 306 * cast to type. But we know that tintro is a base | |
| 307 * of type, so we could optimize it by not doing a | |
| 308 * dynamic cast, but just subtracting the isBaseOf() | |
| 309 * offset if the value is != null. | |
| 310 */ | |
| 311 | |
| 312 if (fdv->tintro) | |
| 313 tintro = fdv->tintro; | |
| 314 else if (!type->equals(fdv->type)) | |
| 315 { | |
| 316 /* Only need to have a tintro if the vptr | |
| 317 * offsets differ | |
| 318 */ | |
| 319 int offset; | |
| 320 if (fdv->type->nextOf()->isBaseOf(type->nextOf(), &offset)) | |
| 321 { | |
| 322 tintro = fdv->type; | |
| 323 } | |
| 324 } | |
| 325 goto L1; | |
| 326 } | |
| 327 if (cov == 3) | |
| 328 { | |
| 329 cd->sizeok = 2; // can't finish due to forward reference | |
| 330 return; | |
| 331 } | |
| 332 } | |
| 333 } | |
| 334 } | |
| 335 | |
| 336 // This is an 'introducing' function. | |
| 337 | |
| 338 // Verify this doesn't override previous final function | |
| 339 if (cd->baseClass) | |
| 340 { Dsymbol *s = cd->baseClass->search(loc, ident, 0); | |
| 341 if (s) | |
| 342 { | |
| 343 FuncDeclaration *f = s->isFuncDeclaration(); | |
| 344 f = f->overloadExactMatch(type); | |
| 345 if (f && f->isFinal() && f->prot() != PROTprivate) | |
| 346 error("cannot override final function %s", f->toPrettyChars()); | |
| 347 } | |
| 348 } | |
| 349 | |
| 350 if (isFinal()) | |
| 351 { | |
| 352 cd->vtblFinal.push(this); | |
| 353 } | |
| 354 else | |
| 355 { | |
| 356 // Append to end of vtbl[] | |
| 357 //printf("\tintroducing function\n"); | |
| 358 introducing = 1; | |
| 359 vi = cd->vtbl.dim; | |
| 360 cd->vtbl.push(this); | |
| 361 vtblIndex = vi; | |
| 362 } | |
| 363 | |
| 364 L1: ; | |
| 365 | |
| 366 /* Go through all the interface bases. | |
| 367 * If this function is covariant with any members of those interface | |
| 368 * functions, set the tintro. | |
| 369 */ | |
| 370 for (int i = 0; i < cd->interfaces_dim; i++) | |
| 371 { | |
| 372 BaseClass *b = cd->interfaces[i]; | |
| 373 for (vi = 0; vi < b->base->vtbl.dim; vi++) | |
| 374 { | |
| 375 Dsymbol *s = (Dsymbol *)b->base->vtbl.data[vi]; | |
| 376 //printf("interface %d vtbl[%d] %p %s\n", i, vi, s, s->toChars()); | |
| 377 FuncDeclaration *fdv = s->isFuncDeclaration(); | |
| 378 if (fdv && fdv->ident == ident) | |
| 379 { | |
| 380 int cov = type->covariant(fdv->type); | |
| 381 //printf("\tcov = %d\n", cov); | |
| 382 if (cov == 2) | |
| 383 { | |
| 384 //type->print(); | |
| 385 //fdv->type->print(); | |
| 386 //printf("%s %s\n", type->deco, fdv->type->deco); | |
| 387 error("of type %s overrides but is not covariant with %s of type %s", | |
| 388 type->toChars(), fdv->toPrettyChars(), fdv->type->toChars()); | |
| 389 } | |
| 390 if (cov == 1) | |
| 391 { Type *ti = NULL; | |
| 392 | |
| 393 if (fdv->tintro) | |
| 394 ti = fdv->tintro; | |
| 395 else if (!type->equals(fdv->type)) | |
| 396 { | |
| 397 /* Only need to have a tintro if the vptr | |
| 398 * offsets differ | |
| 399 */ | |
| 400 int offset; | |
| 401 if (fdv->type->nextOf()->isBaseOf(type->nextOf(), &offset)) | |
| 402 { | |
| 403 ti = fdv->type; | |
| 404 #if 0 | |
| 405 if (offset) | |
| 406 ti = fdv->type; | |
| 407 else if (type->next->ty == Tclass) | |
| 408 { ClassDeclaration *cdn = ((TypeClass *)type->next)->sym; | |
| 409 if (cdn && cdn->sizeok != 1) | |
| 410 ti = fdv->type; | |
| 411 } | |
| 412 #endif | |
| 413 } | |
| 414 } | |
| 415 if (ti) | |
| 416 { | |
| 417 if (tintro && !tintro->equals(ti)) | |
| 418 { | |
| 419 error("incompatible covariant types %s and %s", tintro->toChars(), ti->toChars()); | |
| 420 } | |
| 421 tintro = ti; | |
| 422 } | |
| 423 goto L2; | |
| 424 } | |
| 425 if (cov == 3) | |
| 426 { | |
| 427 cd->sizeok = 2; // can't finish due to forward reference | |
| 428 return; | |
| 429 } | |
| 430 } | |
| 431 } | |
| 432 } | |
| 433 | |
| 434 if (introducing && isOverride()) | |
| 435 { | |
| 436 error("function %s does not override any", toChars()); | |
| 437 } | |
| 438 | |
| 439 L2: ; | |
| 440 } | |
| 441 else if (isOverride() && !parent->isTemplateInstance()) | |
| 442 error("override only applies to class member functions"); | |
| 443 | |
| 444 /* Do not allow template instances to add virtual functions | |
| 445 * to a class. | |
| 446 */ | |
| 447 if (isVirtual()) | |
| 448 { | |
| 449 TemplateInstance *ti = parent->isTemplateInstance(); | |
| 450 if (ti) | |
| 451 { | |
| 452 // Take care of nested templates | |
| 453 while (1) | |
| 454 { | |
| 455 TemplateInstance *ti2 = ti->tempdecl->parent->isTemplateInstance(); | |
| 456 if (!ti2) | |
| 457 break; | |
| 458 ti = ti2; | |
| 459 } | |
| 460 | |
| 461 // If it's a member template | |
| 462 ClassDeclaration *cd = ti->tempdecl->isClassMember(); | |
| 463 if (cd) | |
| 464 { | |
| 465 error("cannot use template to add virtual function to class '%s'", cd->toChars()); | |
| 466 } | |
| 467 } | |
| 468 } | |
| 469 | |
| 470 if (isMain()) | |
| 471 { | |
| 472 // Check parameters to see if they are either () or (char[][] args) | |
| 473 switch (nparams) | |
| 474 { | |
| 475 case 0: | |
| 476 break; | |
| 477 | |
| 478 case 1: | |
| 479 { | |
| 480 Argument *arg0 = Argument::getNth(f->parameters, 0); | |
| 481 if (arg0->type->ty != Tarray || | |
| 482 arg0->type->next->ty != Tarray || | |
| 483 arg0->type->next->next->ty != Tchar || | |
| 484 arg0->storageClass & (STCout | STCref | STClazy)) | |
| 485 goto Lmainerr; | |
| 486 break; | |
| 487 } | |
| 488 | |
| 489 default: | |
| 490 goto Lmainerr; | |
| 491 } | |
| 492 | |
| 493 if (f->nextOf()->ty != Tint32 && f->nextOf()->ty != Tvoid) | |
| 494 error("must return int or void, not %s", f->nextOf()->toChars()); | |
| 495 if (f->varargs) | |
| 496 { | |
| 497 Lmainerr: | |
| 498 error("parameters must be main() or main(char[][] args)"); | |
| 499 } | |
| 500 } | |
| 501 | |
| 502 if (ident == Id::assign && (sd || cd)) | |
| 503 { // Disallow identity assignment operator. | |
| 504 | |
| 505 // opAssign(...) | |
| 506 if (nparams == 0) | |
| 507 { if (f->varargs == 1) | |
| 508 goto Lassignerr; | |
| 509 } | |
| 510 else | |
| 511 { | |
| 512 Argument *arg0 = Argument::getNth(f->parameters, 0); | |
| 513 Type *t0 = arg0->type->toBasetype(); | |
| 514 Type *tb = sd ? sd->type : cd->type; | |
| 515 if (arg0->type->implicitConvTo(tb) || | |
| 516 (sd && t0->ty == Tpointer && t0->nextOf()->implicitConvTo(tb)) | |
| 517 ) | |
| 518 { | |
| 519 if (nparams == 1) | |
| 520 goto Lassignerr; | |
| 521 Argument *arg1 = Argument::getNth(f->parameters, 1); | |
| 522 if (arg1->defaultArg) | |
| 523 goto Lassignerr; | |
| 524 } | |
| 525 } | |
| 526 } | |
| 527 | |
| 528 /* Save scope for possible later use (if we need the | |
| 529 * function internals) | |
| 530 */ | |
| 531 scope = new Scope(*sc); | |
| 532 scope->setNoFree(); | |
| 533 return; | |
| 534 | |
| 535 Lassignerr: | |
| 536 error("identity assignment operator overload is illegal"); | |
| 537 } | |
| 538 | |
| 539 void FuncDeclaration::semantic2(Scope *sc) | |
| 540 { | |
| 541 } | |
| 542 | |
| 543 // Do the semantic analysis on the internals of the function. | |
| 544 | |
| 545 void FuncDeclaration::semantic3(Scope *sc) | |
| 546 { TypeFunction *f; | |
| 547 AggregateDeclaration *ad; | |
| 548 VarDeclaration *argptr = NULL; | |
| 549 VarDeclaration *_arguments = NULL; | |
| 550 | |
| 551 if (!parent) | |
| 552 { | |
| 553 printf("FuncDeclaration::semantic3(%s '%s', sc = %p)\n", kind(), toChars(), sc); | |
| 554 assert(0); | |
| 555 } | |
| 556 //printf("FuncDeclaration::semantic3('%s.%s', sc = %p)\n", parent->toChars(), toChars(), sc); | |
| 557 //fflush(stdout); | |
| 558 //{ static int x; if (++x == 2) *(char*)0=0; } | |
| 559 //printf("\tlinkage = %d\n", sc->linkage); | |
| 560 | |
| 561 //printf(" sc->incontract = %d\n", sc->incontract); | |
| 562 if (semanticRun) | |
| 563 return; | |
| 564 semanticRun = 1; | |
| 565 | |
| 566 if (!type || type->ty != Tfunction) | |
| 567 return; | |
| 568 f = (TypeFunction *)(type); | |
| 569 size_t nparams = Argument::dim(f->parameters); | |
| 570 | |
| 571 // Check the 'throws' clause | |
| 572 if (fthrows) | |
| 573 { int i; | |
| 574 | |
| 575 for (i = 0; i < fthrows->dim; i++) | |
| 576 { | |
| 577 Type *t = (Type *)fthrows->data[i]; | |
| 578 | |
| 579 t = t->semantic(loc, sc); | |
| 580 if (!t->isClassHandle()) | |
| 581 error("can only throw classes, not %s", t->toChars()); | |
| 582 } | |
| 583 } | |
| 584 | |
| 585 if (fbody || frequire) | |
| 586 { | |
| 587 // Establish function scope | |
| 588 ScopeDsymbol *ss; | |
| 589 Scope *sc2; | |
| 590 | |
| 591 localsymtab = new DsymbolTable(); | |
| 592 | |
| 593 ss = new ScopeDsymbol(); | |
| 594 ss->parent = sc->scopesym; | |
| 595 sc2 = sc->push(ss); | |
| 596 sc2->func = this; | |
| 597 sc2->parent = this; | |
| 598 sc2->callSuper = 0; | |
| 599 sc2->sbreak = NULL; | |
| 600 sc2->scontinue = NULL; | |
| 601 sc2->sw = NULL; | |
| 602 sc2->fes = fes; | |
| 603 sc2->linkage = LINKd; | |
| 604 sc2->stc &= ~(STCauto | STCscope | STCstatic | STCabstract | STCdeprecated); | |
| 605 sc2->protection = PROTpublic; | |
| 606 sc2->explicitProtection = 0; | |
| 607 sc2->structalign = 8; | |
| 608 sc2->incontract = 0; | |
| 609 sc2->tf = NULL; | |
| 610 sc2->noctor = 0; | |
| 611 | |
| 612 // Declare 'this' | |
| 613 ad = isThis(); | |
| 614 if (ad) | |
| 615 { VarDeclaration *v; | |
| 616 | |
| 617 if (isFuncLiteralDeclaration() && isNested()) | |
| 618 { | |
| 619 error("literals cannot be class members"); | |
| 620 return; | |
| 621 } | |
| 622 else | |
| 623 { | |
| 624 assert(!isNested()); // can't be both member and nested | |
| 625 assert(ad->handle); | |
| 626 v = new ThisDeclaration(ad->handle); | |
| 627 v->storage_class |= STCparameter | STCin; | |
| 628 v->semantic(sc2); | |
| 629 if (!sc2->insert(v)) | |
| 630 assert(0); | |
| 631 v->parent = this; | |
| 632 vthis = v; | |
| 633 } | |
| 634 } | |
| 635 else if (isNested()) | |
| 636 { | |
| 637 VarDeclaration *v; | |
| 638 | |
| 639 v = new ThisDeclaration(Type::tvoid->pointerTo()); | |
| 640 v->storage_class |= STCparameter | STCin; | |
| 641 v->semantic(sc2); | |
| 642 if (!sc2->insert(v)) | |
| 643 assert(0); | |
| 644 v->parent = this; | |
| 645 vthis = v; | |
| 646 } | |
| 647 | |
| 648 // Declare hidden variable _arguments[] and _argptr | |
| 649 if (f->varargs == 1) | |
| 650 { Type *t; | |
| 651 | |
| 652 if (f->linkage == LINKd) | |
| 653 { // Declare _arguments[] | |
| 654 #if BREAKABI | |
| 655 v_arguments = new VarDeclaration(0, Type::typeinfotypelist->type, Id::_arguments_typeinfo, NULL); | |
| 656 v_arguments->storage_class = STCparameter | STCin; | |
| 657 v_arguments->semantic(sc2); | |
| 658 sc2->insert(v_arguments); | |
| 659 v_arguments->parent = this; | |
| 660 | |
| 661 t = Type::typeinfo->type->arrayOf(); | |
| 662 _arguments = new VarDeclaration(0, t, Id::_arguments, NULL); | |
| 663 _arguments->semantic(sc2); | |
| 664 sc2->insert(_arguments); | |
| 665 _arguments->parent = this; | |
| 666 #else | |
| 667 t = Type::typeinfo->type->arrayOf(); | |
| 668 v_arguments = new VarDeclaration(0, t, Id::_arguments, NULL); | |
| 669 v_arguments->storage_class = STCparameter | STCin; | |
| 670 v_arguments->semantic(sc2); | |
| 671 sc2->insert(v_arguments); | |
| 672 v_arguments->parent = this; | |
| 673 #endif | |
| 674 } | |
| 675 if (f->linkage == LINKd || (parameters && parameters->dim)) | |
| 676 { // Declare _argptr | |
| 677 #if IN_GCC | |
| 678 t = d_gcc_builtin_va_list_d_type; | |
| 679 #else | |
| 680 t = Type::tvoid->pointerTo(); | |
| 681 #endif | |
| 682 argptr = new VarDeclaration(0, t, Id::_argptr, NULL); | |
| 683 argptr->semantic(sc2); | |
| 684 sc2->insert(argptr); | |
| 685 argptr->parent = this; | |
| 686 } | |
| 687 } | |
| 688 | |
| 689 // Propagate storage class from tuple arguments to their sub-arguments. | |
| 690 if (f->parameters) | |
| 691 { | |
| 692 for (size_t i = 0; i < f->parameters->dim; i++) | |
| 693 { Argument *arg = (Argument *)f->parameters->data[i]; | |
| 694 | |
| 695 if (arg->type->ty == Ttuple) | |
| 696 { TypeTuple *t = (TypeTuple *)arg->type; | |
| 697 size_t dim = Argument::dim(t->arguments); | |
| 698 for (size_t j = 0; j < dim; j++) | |
| 699 { Argument *narg = Argument::getNth(t->arguments, j); | |
| 700 narg->storageClass = arg->storageClass; | |
| 701 } | |
| 702 } | |
| 703 } | |
| 704 } | |
| 705 | |
| 706 // Declare all the function parameters as variables | |
| 707 if (nparams) | |
| 708 { // parameters[] has all the tuples removed, as the back end | |
| 709 // doesn't know about tuples | |
| 710 parameters = new Dsymbols(); | |
| 711 parameters->reserve(nparams); | |
| 712 for (size_t i = 0; i < nparams; i++) | |
| 713 { | |
| 714 Argument *arg = Argument::getNth(f->parameters, i); | |
| 715 Identifier *id = arg->ident; | |
| 716 if (!id) | |
| 717 { | |
| 718 //error("no identifier for parameter %d of %s", i + 1, toChars()); | |
| 719 OutBuffer buf; | |
| 720 buf.printf("_param_%zu", i); | |
| 721 char *name = (char *)buf.extractData(); | |
| 722 id = new Identifier(name, TOKidentifier); | |
| 723 arg->ident = id; | |
| 724 } | |
| 725 VarDeclaration *v = new VarDeclaration(0, arg->type, id, NULL); | |
| 726 //printf("declaring parameter %s of type %s\n", v->toChars(), v->type->toChars()); | |
| 727 v->storage_class |= STCparameter; | |
| 728 if (f->varargs == 2 && i + 1 == nparams) | |
| 729 v->storage_class |= STCvariadic; | |
| 730 v->storage_class |= arg->storageClass & (STCin | STCout | STCref | STClazy); | |
| 731 if (v->storage_class & STClazy) | |
| 732 v->storage_class |= STCin; | |
| 733 v->semantic(sc2); | |
| 734 if (!sc2->insert(v)) | |
| 735 error("parameter %s.%s is already defined", toChars(), v->toChars()); | |
| 736 else | |
| 737 parameters->push(v); | |
| 738 localsymtab->insert(v); | |
| 739 v->parent = this; | |
| 740 // for llvm d | |
| 741 arg->vardecl = v; | |
| 742 } | |
| 743 } | |
| 744 | |
| 745 // Declare the tuple symbols and put them in the symbol table, | |
| 746 // but not in parameters[]. | |
| 747 if (f->parameters) | |
| 748 { | |
| 749 for (size_t i = 0; i < f->parameters->dim; i++) | |
| 750 { Argument *arg = (Argument *)f->parameters->data[i]; | |
| 751 | |
| 752 if (!arg->ident) | |
| 753 continue; // never used, so ignore | |
| 754 if (arg->type->ty == Ttuple) | |
| 755 { TypeTuple *t = (TypeTuple *)arg->type; | |
| 756 size_t dim = Argument::dim(t->arguments); | |
| 757 Objects *exps = new Objects(); | |
| 758 exps->setDim(dim); | |
| 759 for (size_t j = 0; j < dim; j++) | |
| 760 { Argument *narg = Argument::getNth(t->arguments, j); | |
| 761 assert(narg->ident); | |
| 762 VarDeclaration *v = sc2->search(0, narg->ident, NULL)->isVarDeclaration(); | |
| 763 assert(v); | |
| 764 Expression *e = new VarExp(0, v); | |
| 765 exps->data[j] = (void *)e; | |
| 766 } | |
| 767 assert(arg->ident); | |
| 768 TupleDeclaration *v = new TupleDeclaration(0, arg->ident, exps); | |
| 769 //printf("declaring tuple %s\n", v->toChars()); | |
| 770 v->isexp = 1; | |
| 771 if (!sc2->insert(v)) | |
| 772 error("parameter %s.%s is already defined", toChars(), v->toChars()); | |
| 773 localsymtab->insert(v); | |
| 774 v->parent = this; | |
| 775 } | |
| 776 } | |
| 777 } | |
| 778 | |
| 779 sc2->incontract++; | |
| 780 | |
| 781 if (frequire) | |
| 782 { | |
| 783 // BUG: need to error if accessing out parameters | |
| 784 // BUG: need to treat parameters as const | |
| 785 // BUG: need to disallow returns and throws | |
| 786 // BUG: verify that all in and ref parameters are read | |
| 787 frequire = frequire->semantic(sc2); | |
| 788 labtab = NULL; // so body can't refer to labels | |
| 789 } | |
| 790 | |
| 791 if (fensure || addPostInvariant()) | |
| 792 { | |
| 793 ScopeDsymbol *sym; | |
| 794 | |
| 795 sym = new ScopeDsymbol(); | |
| 796 sym->parent = sc2->scopesym; | |
| 797 sc2 = sc2->push(sym); | |
| 798 | |
| 799 assert(type->nextOf()); | |
| 800 if (type->nextOf()->ty == Tvoid) | |
| 801 { | |
| 802 if (outId) | |
| 803 error("void functions have no result"); | |
| 804 } | |
| 805 else | |
| 806 { | |
| 807 if (!outId) | |
| 808 outId = Id::result; // provide a default | |
| 809 } | |
| 810 | |
| 811 if (outId) | |
| 812 { // Declare result variable | |
| 813 VarDeclaration *v; | |
| 814 Loc loc = this->loc; | |
| 815 | |
| 816 if (fensure) | |
| 817 loc = fensure->loc; | |
| 818 | |
| 819 v = new VarDeclaration(loc, type->nextOf(), outId, NULL); | |
| 820 v->noauto = 1; | |
| 821 sc2->incontract--; | |
| 822 v->semantic(sc2); | |
| 823 sc2->incontract++; | |
| 824 if (!sc2->insert(v)) | |
| 825 error("out result %s is already defined", v->toChars()); | |
| 826 v->parent = this; | |
| 827 vresult = v; | |
| 828 | |
| 829 // vresult gets initialized with the function return value | |
| 830 // in ReturnStatement::semantic() | |
| 831 } | |
| 832 | |
| 833 // BUG: need to treat parameters as const | |
| 834 // BUG: need to disallow returns and throws | |
| 835 if (fensure) | |
| 836 { fensure = fensure->semantic(sc2); | |
| 837 labtab = NULL; // so body can't refer to labels | |
| 838 } | |
| 839 | |
| 840 if (!global.params.useOut) | |
| 841 { fensure = NULL; // discard | |
| 842 vresult = NULL; | |
| 843 } | |
| 844 | |
| 845 // Postcondition invariant | |
| 846 if (addPostInvariant()) | |
| 847 { | |
| 848 Expression *e = NULL; | |
| 849 if (isCtorDeclaration()) | |
| 850 { | |
| 851 // Call invariant directly only if it exists | |
| 852 InvariantDeclaration *inv = ad->inv; | |
| 853 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 854 | |
| 855 while (!inv && cd) | |
| 856 { | |
| 857 cd = cd->baseClass; | |
| 858 if (!cd) | |
| 859 break; | |
| 860 inv = cd->inv; | |
| 861 } | |
| 862 if (inv) | |
| 863 { | |
| 864 e = new DsymbolExp(0, inv); | |
| 865 e = new CallExp(0, e); | |
| 866 e = e->semantic(sc2); | |
| 867 } | |
| 868 } | |
| 869 else | |
| 870 { // Call invariant virtually | |
| 871 ThisExp *v = new ThisExp(0); | |
| 872 v->type = vthis->type; | |
| 873 e = new AssertExp(0, v); | |
| 874 } | |
| 875 if (e) | |
| 876 { | |
| 877 ExpStatement *s = new ExpStatement(0, e); | |
| 878 if (fensure) | |
| 879 fensure = new CompoundStatement(0, s, fensure); | |
| 880 else | |
| 881 fensure = s; | |
| 882 } | |
| 883 } | |
| 884 | |
| 885 if (fensure) | |
| 886 { returnLabel = new LabelDsymbol(Id::returnLabel); | |
| 887 LabelStatement *ls = new LabelStatement(0, Id::returnLabel, fensure); | |
| 888 ls->isReturnLabel = 1; | |
| 889 returnLabel->statement = ls; | |
| 890 } | |
| 891 sc2 = sc2->pop(); | |
| 892 } | |
| 893 | |
| 894 sc2->incontract--; | |
| 895 | |
| 896 if (fbody) | |
| 897 { ClassDeclaration *cd = isClassMember(); | |
| 898 | |
| 899 if (isCtorDeclaration() && cd) | |
| 900 { | |
| 901 for (int i = 0; i < cd->fields.dim; i++) | |
| 902 { VarDeclaration *v = (VarDeclaration *)cd->fields.data[i]; | |
| 903 | |
| 904 v->ctorinit = 0; | |
| 905 } | |
| 906 } | |
| 907 | |
| 908 if (inferRetType || f->retStyle() != RETstack) | |
| 909 nrvo_can = 0; | |
| 910 | |
| 911 fbody = fbody->semantic(sc2); | |
| 912 | |
| 913 if (inferRetType) | |
| 914 { // If no return type inferred yet, then infer a void | |
| 915 if (!type->nextOf()) | |
| 916 { | |
| 917 type->next = Type::tvoid; | |
| 918 type = type->semantic(loc, sc); | |
| 919 } | |
| 920 f = (TypeFunction *)type; | |
| 921 } | |
| 922 | |
| 923 int offend = fbody ? fbody->fallOffEnd() : TRUE; | |
| 924 | |
| 925 if (isStaticCtorDeclaration()) | |
| 926 { /* It's a static constructor. Ensure that all | |
| 927 * ctor consts were initialized. | |
| 928 */ | |
| 929 | |
| 930 ScopeDsymbol *ad = toParent()->isScopeDsymbol(); | |
| 931 assert(ad); | |
| 932 for (int i = 0; i < ad->members->dim; i++) | |
| 933 { Dsymbol *s = (Dsymbol *)ad->members->data[i]; | |
| 934 | |
| 935 s->checkCtorConstInit(); | |
| 936 } | |
| 937 } | |
| 938 | |
| 939 if (isCtorDeclaration() && cd) | |
| 940 { | |
| 941 //printf("callSuper = x%x\n", sc2->callSuper); | |
| 942 | |
| 943 // Verify that all the ctorinit fields got initialized | |
| 944 if (!(sc2->callSuper & CSXthis_ctor)) | |
| 945 { | |
| 946 for (int i = 0; i < cd->fields.dim; i++) | |
| 947 { VarDeclaration *v = (VarDeclaration *)cd->fields.data[i]; | |
| 948 | |
| 949 if (v->ctorinit == 0 && v->isCtorinit()) | |
| 950 error("missing initializer for const field %s", v->toChars()); | |
| 951 } | |
| 952 } | |
| 953 | |
| 954 if (!(sc2->callSuper & CSXany_ctor) && | |
| 955 cd->baseClass && cd->baseClass->ctor) | |
| 956 { | |
| 957 sc2->callSuper = 0; | |
| 958 | |
| 959 // Insert implicit super() at start of fbody | |
| 960 Expression *e1 = new SuperExp(0); | |
| 961 Expression *e = new CallExp(0, e1); | |
| 962 | |
| 963 unsigned errors = global.errors; | |
| 964 global.gag++; | |
| 965 e = e->semantic(sc2); | |
| 966 global.gag--; | |
| 967 if (errors != global.errors) | |
| 968 error("no match for implicit super() call in constructor"); | |
| 969 | |
| 970 Statement *s = new ExpStatement(0, e); | |
| 971 fbody = new CompoundStatement(0, s, fbody); | |
| 972 } | |
| 973 } | |
| 974 else if (fes) | |
| 975 { // For foreach(){} body, append a return 0; | |
| 976 Expression *e = new IntegerExp(0); | |
| 977 Statement *s = new ReturnStatement(0, e); | |
| 978 fbody = new CompoundStatement(0, fbody, s); | |
| 979 assert(!returnLabel); | |
| 980 } | |
| 981 else if (!hasReturnExp && type->nextOf()->ty != Tvoid) | |
| 982 error("expected to return a value of type %s", type->nextOf()->toChars()); | |
| 983 else if (!inlineAsm) | |
| 984 { | |
| 985 if (type->nextOf()->ty == Tvoid) | |
| 986 { | |
| 987 if (offend && isMain()) | |
| 988 { // Add a return 0; statement | |
| 989 Statement *s = new ReturnStatement(0, new IntegerExp(0)); | |
| 990 fbody = new CompoundStatement(0, fbody, s); | |
| 991 } | |
| 992 } | |
| 993 else | |
| 994 { | |
| 995 if (offend) | |
| 996 { Expression *e; | |
| 997 | |
| 998 if (global.params.warnings) | |
| 999 { fprintf(stdmsg, "warning - "); | |
| 1000 error("no return at end of function"); | |
| 1001 } | |
| 1002 | |
| 1003 if (global.params.useAssert && | |
| 1004 !global.params.useInline) | |
| 1005 { /* Add an assert(0, msg); where the missing return | |
| 1006 * should be. | |
| 1007 */ | |
| 1008 e = new AssertExp( | |
| 1009 endloc, | |
| 1010 new IntegerExp(0), | |
| 1011 new StringExp(loc, "missing return expression") | |
| 1012 ); | |
| 1013 } | |
| 1014 else | |
| 1015 e = new HaltExp(endloc); | |
| 1016 e = new CommaExp(0, e, type->nextOf()->defaultInit()); | |
| 1017 e = e->semantic(sc2); | |
| 1018 Statement *s = new ExpStatement(0, e); | |
| 1019 fbody = new CompoundStatement(0, fbody, s); | |
| 1020 } | |
| 1021 } | |
| 1022 } | |
| 1023 } | |
| 1024 | |
| 1025 { | |
| 1026 Statements *a = new Statements(); | |
| 1027 | |
| 1028 // Merge in initialization of 'out' parameters | |
| 1029 if (parameters) | |
| 1030 { for (size_t i = 0; i < parameters->dim; i++) | |
| 1031 { VarDeclaration *v; | |
| 1032 | |
| 1033 v = (VarDeclaration *)parameters->data[i]; | |
| 1034 if (v->storage_class & STCout) | |
| 1035 { | |
| 1036 assert(v->init); | |
| 1037 ExpInitializer *ie = v->init->isExpInitializer(); | |
| 1038 assert(ie); | |
| 1039 a->push(new ExpStatement(0, ie->exp)); | |
| 1040 } | |
| 1041 } | |
| 1042 } | |
| 1043 | |
| 1044 if (argptr) | |
| 1045 { // Initialize _argptr to point past non-variadic arg | |
| 1046 #if IN_GCC | |
| 1047 // Handled in FuncDeclaration::toObjFile | |
| 1048 v_argptr = argptr; | |
| 1049 v_argptr->init = new VoidInitializer(loc); | |
| 1050 #else | |
| 1051 Expression *e1; | |
| 1052 Expression *e; | |
| 1053 Type *t = argptr->type; | |
| 1054 VarDeclaration *p; | |
| 1055 unsigned offset; | |
| 1056 | |
| 1057 e1 = new VarExp(0, argptr); | |
| 1058 if (parameters && parameters->dim) | |
| 1059 p = (VarDeclaration *)parameters->data[parameters->dim - 1]; | |
| 1060 else | |
| 1061 p = v_arguments; // last parameter is _arguments[] | |
| 1062 offset = p->type->size(); | |
| 1063 offset = (offset + 3) & ~3; // assume stack aligns on 4 | |
| 1064 e = new SymOffExp(0, p, offset); | |
| 1065 e = new AssignExp(0, e1, e); | |
| 1066 e->type = t; | |
| 1067 a->push(new ExpStatement(0, e)); | |
| 1068 #endif | |
| 1069 } | |
| 1070 | |
| 1071 if (_arguments) | |
| 1072 { | |
| 1073 /* Advance to elements[] member of TypeInfo_Tuple with: | |
| 1074 * _arguments = v_arguments.elements; | |
| 1075 */ | |
| 1076 Expression *e = new VarExp(0, v_arguments); | |
| 1077 e = new DotIdExp(0, e, Id::elements); | |
| 1078 Expression *e1 = new VarExp(0, _arguments); | |
| 1079 e = new AssignExp(0, e1, e); | |
| 1080 e = e->semantic(sc); | |
| 1081 a->push(new ExpStatement(0, e)); | |
| 1082 } | |
| 1083 | |
| 1084 // Merge contracts together with body into one compound statement | |
| 1085 | |
| 1086 #ifdef _DH | |
| 1087 if (frequire && global.params.useIn) | |
| 1088 { frequire->incontract = 1; | |
| 1089 a->push(frequire); | |
| 1090 } | |
| 1091 #else | |
| 1092 if (frequire && global.params.useIn) | |
| 1093 a->push(frequire); | |
| 1094 #endif | |
| 1095 | |
| 1096 // Precondition invariant | |
| 1097 if (addPreInvariant()) | |
| 1098 { | |
| 1099 Expression *e = NULL; | |
| 1100 if (isDtorDeclaration()) | |
| 1101 { | |
| 1102 // Call invariant directly only if it exists | |
| 1103 InvariantDeclaration *inv = ad->inv; | |
| 1104 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 1105 | |
| 1106 while (!inv && cd) | |
| 1107 { | |
| 1108 cd = cd->baseClass; | |
| 1109 if (!cd) | |
| 1110 break; | |
| 1111 inv = cd->inv; | |
| 1112 } | |
| 1113 if (inv) | |
| 1114 { | |
| 1115 e = new DsymbolExp(0, inv); | |
| 1116 e = new CallExp(0, e); | |
| 1117 e = e->semantic(sc2); | |
| 1118 } | |
| 1119 } | |
| 1120 else | |
| 1121 { // Call invariant virtually | |
| 1122 ThisExp *v = new ThisExp(0); | |
| 1123 v->type = vthis->type; | |
| 1124 Expression *se = new StringExp(0, "null this"); | |
| 1125 se = se->semantic(sc); | |
| 1126 se->type = Type::tchar->arrayOf(); | |
| 1127 e = new AssertExp(loc, v, se); | |
| 1128 } | |
| 1129 if (e) | |
| 1130 { | |
| 1131 ExpStatement *s = new ExpStatement(0, e); | |
| 1132 a->push(s); | |
| 1133 } | |
| 1134 } | |
| 1135 | |
| 1136 if (fbody) | |
| 1137 a->push(fbody); | |
| 1138 | |
| 1139 if (fensure) | |
| 1140 { | |
| 1141 a->push(returnLabel->statement); | |
| 1142 | |
| 1143 if (type->nextOf()->ty != Tvoid) | |
| 1144 { | |
| 1145 // Create: return vresult; | |
| 1146 assert(vresult); | |
| 1147 Expression *e = new VarExp(0, vresult); | |
| 1148 if (tintro) | |
| 1149 { e = e->implicitCastTo(sc, tintro->nextOf()); | |
| 1150 e = e->semantic(sc); | |
| 1151 } | |
| 1152 ReturnStatement *s = new ReturnStatement(0, e); | |
| 1153 a->push(s); | |
| 1154 } | |
| 1155 } | |
| 1156 | |
| 1157 fbody = new CompoundStatement(0, a); | |
| 1158 } | |
| 1159 | |
| 1160 sc2->callSuper = 0; | |
| 1161 sc2->pop(); | |
| 1162 } | |
| 1163 semanticRun = 2; | |
| 1164 } | |
| 1165 | |
| 1166 void FuncDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1167 { | |
| 1168 //printf("FuncDeclaration::toCBuffer() '%s'\n", toChars()); | |
| 1169 | |
| 1170 type->toCBuffer(buf, ident, hgs); | |
| 1171 bodyToCBuffer(buf, hgs); | |
| 1172 } | |
| 1173 | |
| 1174 | |
| 1175 void FuncDeclaration::bodyToCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1176 { | |
| 1177 if (fbody && | |
| 1178 (!hgs->hdrgen || hgs->tpltMember || canInline(1,1)) | |
| 1179 ) | |
| 1180 { buf->writenl(); | |
| 1181 | |
| 1182 // in{} | |
| 1183 if (frequire) | |
| 1184 { buf->writestring("in"); | |
| 1185 buf->writenl(); | |
| 1186 frequire->toCBuffer(buf, hgs); | |
| 1187 } | |
| 1188 | |
| 1189 // out{} | |
| 1190 if (fensure) | |
| 1191 { buf->writestring("out"); | |
| 1192 if (outId) | |
| 1193 { buf->writebyte('('); | |
| 1194 buf->writestring(outId->toChars()); | |
| 1195 buf->writebyte(')'); | |
| 1196 } | |
| 1197 buf->writenl(); | |
| 1198 fensure->toCBuffer(buf, hgs); | |
| 1199 } | |
| 1200 | |
| 1201 if (frequire || fensure) | |
| 1202 { buf->writestring("body"); | |
| 1203 buf->writenl(); | |
| 1204 } | |
| 1205 | |
| 1206 buf->writebyte('{'); | |
| 1207 buf->writenl(); | |
| 1208 fbody->toCBuffer(buf, hgs); | |
| 1209 buf->writebyte('}'); | |
| 1210 buf->writenl(); | |
| 1211 } | |
| 1212 else | |
| 1213 { buf->writeByte(';'); | |
| 1214 buf->writenl(); | |
| 1215 } | |
| 1216 } | |
| 1217 | |
| 1218 /**************************************************** | |
| 1219 * Determine if 'this' overrides fd. | |
| 1220 * Return !=0 if it does. | |
| 1221 */ | |
| 1222 | |
| 1223 int FuncDeclaration::overrides(FuncDeclaration *fd) | |
| 1224 { int result = 0; | |
| 1225 | |
| 1226 if (fd->ident == ident) | |
| 1227 { | |
| 1228 int cov = type->covariant(fd->type); | |
| 1229 if (cov) | |
| 1230 { ClassDeclaration *cd1 = toParent()->isClassDeclaration(); | |
| 1231 ClassDeclaration *cd2 = fd->toParent()->isClassDeclaration(); | |
| 1232 | |
| 1233 if (cd1 && cd2 && cd2->isBaseOf(cd1, NULL)) | |
| 1234 result = 1; | |
| 1235 } | |
| 1236 } | |
| 1237 return result; | |
| 1238 } | |
| 1239 | |
| 1240 /**************************************************** | |
| 1241 * Overload this FuncDeclaration with the new one f. | |
| 1242 * Return !=0 if successful; i.e. no conflict. | |
| 1243 */ | |
| 1244 | |
| 1245 int FuncDeclaration::overloadInsert(Dsymbol *s) | |
| 1246 { | |
| 1247 FuncDeclaration *f; | |
| 1248 AliasDeclaration *a; | |
| 1249 | |
| 1250 //printf("FuncDeclaration::overloadInsert(%s)\n", s->toChars()); | |
| 1251 a = s->isAliasDeclaration(); | |
| 1252 if (a) | |
| 1253 { | |
| 1254 if (overnext) | |
| 1255 return overnext->overloadInsert(a); | |
| 1256 if (!a->aliassym && a->type->ty != Tident && a->type->ty != Tinstance) | |
| 1257 { | |
| 1258 //printf("\ta = '%s'\n", a->type->toChars()); | |
| 1259 return FALSE; | |
| 1260 } | |
| 1261 overnext = a; | |
| 1262 //printf("\ttrue: no conflict\n"); | |
| 1263 return TRUE; | |
| 1264 } | |
| 1265 f = s->isFuncDeclaration(); | |
| 1266 if (!f) | |
| 1267 return FALSE; | |
| 1268 | |
| 1269 if (type && f->type && // can be NULL for overloaded constructors | |
| 1270 f->type->covariant(type) && | |
| 1271 !isFuncAliasDeclaration()) | |
| 1272 { | |
| 1273 //printf("\tfalse: conflict %s\n", kind()); | |
| 1274 return FALSE; | |
| 1275 } | |
| 1276 | |
| 1277 if (overnext) | |
| 1278 return overnext->overloadInsert(f); | |
| 1279 overnext = f; | |
| 1280 //printf("\ttrue: no conflict\n"); | |
| 1281 return TRUE; | |
| 1282 } | |
| 1283 | |
| 1284 /******************************************** | |
| 1285 * Find function in overload list that exactly matches t. | |
| 1286 */ | |
| 1287 | |
| 1288 /*************************************************** | |
| 1289 * Visit each overloaded function in turn, and call | |
| 1290 * (*fp)(param, f) on it. | |
| 1291 * Exit when no more, or (*fp)(param, f) returns 1. | |
| 1292 * Returns: | |
| 1293 * 0 continue | |
| 1294 * 1 done | |
| 1295 */ | |
| 1296 | |
| 1297 int overloadApply(FuncDeclaration *fstart, | |
| 1298 int (*fp)(void *, FuncDeclaration *), | |
| 1299 void *param) | |
| 1300 { | |
| 1301 FuncDeclaration *f; | |
| 1302 Declaration *d; | |
| 1303 Declaration *next; | |
| 1304 | |
| 1305 for (d = fstart; d; d = next) | |
| 1306 { FuncAliasDeclaration *fa = d->isFuncAliasDeclaration(); | |
| 1307 | |
| 1308 if (fa) | |
| 1309 { | |
| 1310 if (overloadApply(fa->funcalias, fp, param)) | |
| 1311 return 1; | |
| 1312 next = fa->overnext; | |
| 1313 } | |
| 1314 else | |
| 1315 { | |
| 1316 AliasDeclaration *a = d->isAliasDeclaration(); | |
| 1317 | |
| 1318 if (a) | |
| 1319 { | |
| 1320 Dsymbol *s = a->toAlias(); | |
| 1321 next = s->isDeclaration(); | |
| 1322 if (next == a) | |
| 1323 break; | |
| 1324 if (next == fstart) | |
| 1325 break; | |
| 1326 } | |
| 1327 else | |
| 1328 { | |
| 1329 f = d->isFuncDeclaration(); | |
| 1330 if (!f) | |
| 1331 { d->error("is aliased to a function"); | |
| 1332 break; // BUG: should print error message? | |
| 1333 } | |
| 1334 if ((*fp)(param, f)) | |
| 1335 return 1; | |
| 1336 | |
| 1337 next = f->overnext; | |
| 1338 } | |
| 1339 } | |
| 1340 } | |
| 1341 return 0; | |
| 1342 } | |
| 1343 | |
| 1344 /******************************************** | |
| 1345 * Find function in overload list that exactly matches t. | |
| 1346 */ | |
| 1347 | |
| 1348 struct Param1 | |
| 1349 { | |
| 1350 Type *t; // type to match | |
| 1351 FuncDeclaration *f; // return value | |
| 1352 }; | |
| 1353 | |
| 1354 int fp1(void *param, FuncDeclaration *f) | |
| 1355 { Param1 *p = (Param1 *)param; | |
| 1356 Type *t = p->t; | |
| 1357 | |
| 1358 if (t->equals(f->type)) | |
| 1359 { p->f = f; | |
| 1360 return 1; | |
| 1361 } | |
| 1362 | |
| 1363 #if V2 | |
| 1364 /* Allow covariant matches, if it's just a const conversion | |
| 1365 * of the return type | |
| 1366 */ | |
| 1367 if (t->ty == Tfunction) | |
| 1368 { TypeFunction *tf = (TypeFunction *)f->type; | |
| 1369 if (tf->covariant(t) == 1 && | |
| 1370 tf->nextOf()->implicitConvTo(t->nextOf()) >= MATCHconst) | |
| 1371 { | |
| 1372 p->f = f; | |
| 1373 return 1; | |
| 1374 } | |
| 1375 } | |
| 1376 #endif | |
| 1377 return 0; | |
| 1378 } | |
| 1379 | |
| 1380 FuncDeclaration *FuncDeclaration::overloadExactMatch(Type *t) | |
| 1381 { | |
| 1382 Param1 p; | |
| 1383 p.t = t; | |
| 1384 p.f = NULL; | |
| 1385 overloadApply(this, &fp1, &p); | |
| 1386 return p.f; | |
| 1387 } | |
| 1388 | |
| 1389 #if 0 | |
| 1390 FuncDeclaration *FuncDeclaration::overloadExactMatch(Type *t) | |
| 1391 { | |
| 1392 FuncDeclaration *f; | |
| 1393 Declaration *d; | |
| 1394 Declaration *next; | |
| 1395 | |
| 1396 for (d = this; d; d = next) | |
| 1397 { FuncAliasDeclaration *fa = d->isFuncAliasDeclaration(); | |
| 1398 | |
| 1399 if (fa) | |
| 1400 { | |
| 1401 FuncDeclaration *f2 = fa->funcalias->overloadExactMatch(t); | |
| 1402 if (f2) | |
| 1403 return f2; | |
| 1404 next = fa->overnext; | |
| 1405 } | |
| 1406 else | |
| 1407 { | |
| 1408 AliasDeclaration *a = d->isAliasDeclaration(); | |
| 1409 | |
| 1410 if (a) | |
| 1411 { | |
| 1412 Dsymbol *s = a->toAlias(); | |
| 1413 next = s->isDeclaration(); | |
| 1414 if (next == a) | |
| 1415 break; | |
| 1416 } | |
| 1417 else | |
| 1418 { | |
| 1419 f = d->isFuncDeclaration(); | |
| 1420 if (!f) | |
| 1421 break; // BUG: should print error message? | |
| 1422 if (t->equals(d->type)) | |
| 1423 return f; | |
| 1424 next = f->overnext; | |
| 1425 } | |
| 1426 } | |
| 1427 } | |
| 1428 return NULL; | |
| 1429 } | |
| 1430 #endif | |
| 1431 | |
| 1432 /******************************************** | |
| 1433 * Decide which function matches the arguments best. | |
| 1434 */ | |
| 1435 | |
| 1436 struct Param2 | |
| 1437 { | |
| 1438 Match *m; | |
| 1439 Expressions *arguments; | |
| 1440 }; | |
| 1441 | |
| 1442 int fp2(void *param, FuncDeclaration *f) | |
| 1443 { Param2 *p = (Param2 *)param; | |
| 1444 Match *m = p->m; | |
| 1445 Expressions *arguments = p->arguments; | |
| 1446 MATCH match; | |
| 1447 | |
| 1448 if (f != m->lastf) // skip duplicates | |
| 1449 { | |
| 1450 TypeFunction *tf; | |
| 1451 | |
| 1452 m->anyf = f; | |
| 1453 tf = (TypeFunction *)f->type; | |
| 1454 match = (MATCH) tf->callMatch(arguments); | |
| 1455 //printf("match = %d\n", match); | |
| 1456 if (match != MATCHnomatch) | |
| 1457 { | |
| 1458 if (match > m->last) | |
| 1459 goto LfIsBetter; | |
| 1460 | |
| 1461 if (match < m->last) | |
| 1462 goto LlastIsBetter; | |
| 1463 | |
| 1464 /* See if one of the matches overrides the other. | |
| 1465 */ | |
| 1466 if (m->lastf->overrides(f)) | |
| 1467 goto LlastIsBetter; | |
| 1468 else if (f->overrides(m->lastf)) | |
| 1469 goto LfIsBetter; | |
| 1470 | |
| 1471 Lambiguous: | |
| 1472 m->nextf = f; | |
| 1473 m->count++; | |
| 1474 return 0; | |
| 1475 | |
| 1476 LfIsBetter: | |
| 1477 m->last = match; | |
| 1478 m->lastf = f; | |
| 1479 m->count = 1; | |
| 1480 return 0; | |
| 1481 | |
| 1482 LlastIsBetter: | |
| 1483 return 0; | |
| 1484 } | |
| 1485 } | |
| 1486 return 0; | |
| 1487 } | |
| 1488 | |
| 1489 | |
| 1490 void overloadResolveX(Match *m, FuncDeclaration *fstart, Expressions *arguments) | |
| 1491 { | |
| 1492 Param2 p; | |
| 1493 p.m = m; | |
| 1494 p.arguments = arguments; | |
| 1495 overloadApply(fstart, &fp2, &p); | |
| 1496 } | |
| 1497 | |
| 1498 #if 0 | |
| 1499 // Recursive helper function | |
| 1500 | |
| 1501 void overloadResolveX(Match *m, FuncDeclaration *fstart, Expressions *arguments) | |
| 1502 { | |
| 1503 MATCH match; | |
| 1504 Declaration *d; | |
| 1505 Declaration *next; | |
| 1506 | |
| 1507 for (d = fstart; d; d = next) | |
| 1508 { | |
| 1509 FuncDeclaration *f; | |
| 1510 FuncAliasDeclaration *fa; | |
| 1511 AliasDeclaration *a; | |
| 1512 | |
| 1513 fa = d->isFuncAliasDeclaration(); | |
| 1514 if (fa) | |
| 1515 { | |
| 1516 overloadResolveX(m, fa->funcalias, arguments); | |
| 1517 next = fa->overnext; | |
| 1518 } | |
| 1519 else if ((f = d->isFuncDeclaration()) != NULL) | |
| 1520 { | |
| 1521 next = f->overnext; | |
| 1522 if (f == m->lastf) | |
| 1523 continue; // skip duplicates | |
| 1524 else | |
| 1525 { | |
| 1526 TypeFunction *tf; | |
| 1527 | |
| 1528 m->anyf = f; | |
| 1529 tf = (TypeFunction *)f->type; | |
| 1530 match = (MATCH) tf->callMatch(arguments); | |
| 1531 //printf("match = %d\n", match); | |
| 1532 if (match != MATCHnomatch) | |
| 1533 { | |
| 1534 if (match > m->last) | |
| 1535 goto LfIsBetter; | |
| 1536 | |
| 1537 if (match < m->last) | |
| 1538 goto LlastIsBetter; | |
| 1539 | |
| 1540 /* See if one of the matches overrides the other. | |
| 1541 */ | |
| 1542 if (m->lastf->overrides(f)) | |
| 1543 goto LlastIsBetter; | |
| 1544 else if (f->overrides(m->lastf)) | |
| 1545 goto LfIsBetter; | |
| 1546 | |
| 1547 Lambiguous: | |
| 1548 m->nextf = f; | |
| 1549 m->count++; | |
| 1550 continue; | |
| 1551 | |
| 1552 LfIsBetter: | |
| 1553 m->last = match; | |
| 1554 m->lastf = f; | |
| 1555 m->count = 1; | |
| 1556 continue; | |
| 1557 | |
| 1558 LlastIsBetter: | |
| 1559 continue; | |
| 1560 } | |
| 1561 } | |
| 1562 } | |
| 1563 else if ((a = d->isAliasDeclaration()) != NULL) | |
| 1564 { | |
| 1565 Dsymbol *s = a->toAlias(); | |
| 1566 next = s->isDeclaration(); | |
| 1567 if (next == a) | |
| 1568 break; | |
| 1569 if (next == fstart) | |
| 1570 break; | |
| 1571 } | |
| 1572 else | |
| 1573 { d->error("is aliased to a function"); | |
| 1574 break; | |
| 1575 } | |
| 1576 } | |
| 1577 } | |
| 1578 #endif | |
| 1579 | |
| 1580 FuncDeclaration *FuncDeclaration::overloadResolve(Loc loc, Expressions *arguments) | |
| 1581 { | |
| 1582 TypeFunction *tf; | |
| 1583 Match m; | |
| 1584 | |
| 1585 #if 0 | |
| 1586 printf("FuncDeclaration::overloadResolve('%s')\n", toChars()); | |
| 1587 if (arguments) | |
| 1588 { int i; | |
| 1589 | |
| 1590 for (i = 0; i < arguments->dim; i++) | |
| 1591 { Expression *arg; | |
| 1592 | |
| 1593 arg = (Expression *)arguments->data[i]; | |
| 1594 assert(arg->type); | |
| 1595 printf("\t%s: ", arg->toChars()); | |
| 1596 arg->type->print(); | |
| 1597 } | |
| 1598 } | |
| 1599 #endif | |
| 1600 | |
| 1601 memset(&m, 0, sizeof(m)); | |
| 1602 m.last = MATCHnomatch; | |
| 1603 overloadResolveX(&m, this, arguments); | |
| 1604 | |
| 1605 if (m.count == 1) // exactly one match | |
| 1606 { | |
| 1607 return m.lastf; | |
| 1608 } | |
| 1609 else | |
| 1610 { | |
| 1611 OutBuffer buf; | |
| 1612 | |
| 1613 if (arguments) | |
| 1614 { | |
| 1615 HdrGenState hgs; | |
| 1616 | |
| 1617 argExpTypesToCBuffer(&buf, arguments, &hgs); | |
| 1618 } | |
| 1619 | |
| 1620 if (m.last == MATCHnomatch) | |
| 1621 { | |
| 1622 tf = (TypeFunction *)type; | |
| 1623 | |
| 1624 //printf("tf = %s, args = %s\n", tf->deco, ((Expression *)arguments->data[0])->type->deco); | |
| 1625 error(loc, "%s does not match parameter types (%s)", | |
| 1626 Argument::argsTypesToChars(tf->parameters, tf->varargs), | |
| 1627 buf.toChars()); | |
| 1628 return m.anyf; // as long as it's not a FuncAliasDeclaration | |
| 1629 } | |
| 1630 else | |
| 1631 { | |
| 1632 #if 1 | |
| 1633 TypeFunction *t1 = (TypeFunction *)m.lastf->type; | |
| 1634 TypeFunction *t2 = (TypeFunction *)m.nextf->type; | |
| 1635 | |
| 1636 error(loc, "called with argument types:\n\t(%s)\nmatches both:\n\t%s%s\nand:\n\t%s%s", | |
| 1637 buf.toChars(), | |
| 1638 m.lastf->toPrettyChars(), Argument::argsTypesToChars(t1->parameters, t1->varargs), | |
| 1639 m.nextf->toPrettyChars(), Argument::argsTypesToChars(t2->parameters, t2->varargs)); | |
| 1640 #else | |
| 1641 error(loc, "overloads %s and %s both match argument list for %s", | |
| 1642 m.lastf->type->toChars(), | |
| 1643 m.nextf->type->toChars(), | |
| 1644 m.lastf->toChars()); | |
| 1645 #endif | |
| 1646 return m.lastf; | |
| 1647 } | |
| 1648 } | |
| 1649 } | |
| 1650 | |
| 1651 /******************************** | |
| 1652 * Labels are in a separate scope, one per function. | |
| 1653 */ | |
| 1654 | |
| 1655 LabelDsymbol *FuncDeclaration::searchLabel(Identifier *ident) | |
| 1656 { Dsymbol *s; | |
| 1657 | |
| 1658 if (!labtab) | |
| 1659 labtab = new DsymbolTable(); // guess we need one | |
| 1660 | |
| 1661 s = labtab->lookup(ident); | |
| 1662 if (!s) | |
| 1663 { | |
| 1664 s = new LabelDsymbol(ident); | |
| 1665 labtab->insert(s); | |
| 1666 } | |
| 1667 return (LabelDsymbol *)s; | |
| 1668 } | |
| 1669 | |
| 1670 AggregateDeclaration *FuncDeclaration::isThis() | |
| 1671 { AggregateDeclaration *ad; | |
| 1672 | |
| 1673 //printf("+FuncDeclaration::isThis() '%s'\n", toChars()); | |
| 1674 ad = NULL; | |
| 1675 if ((storage_class & STCstatic) == 0) | |
| 1676 { | |
| 1677 ad = isMember2(); | |
| 1678 } | |
| 1679 //printf("-FuncDeclaration::isThis() %p\n", ad); | |
| 1680 return ad; | |
| 1681 } | |
| 1682 | |
| 1683 AggregateDeclaration *FuncDeclaration::isMember2() | |
| 1684 { AggregateDeclaration *ad; | |
| 1685 | |
| 1686 //printf("+FuncDeclaration::isMember2() '%s'\n", toChars()); | |
| 1687 ad = NULL; | |
| 1688 for (Dsymbol *s = this; s; s = s->parent) | |
| 1689 { | |
| 1690 //printf("\ts = '%s', parent = '%s', kind = %s\n", s->toChars(), s->parent->toChars(), s->parent->kind()); | |
| 1691 ad = s->isMember(); | |
| 1692 if (ad) | |
| 1693 { //printf("test4\n"); | |
| 1694 break; | |
| 1695 } | |
| 1696 if (!s->parent || | |
| 1697 (!s->parent->isTemplateInstance())) | |
| 1698 { //printf("test5\n"); | |
| 1699 break; | |
| 1700 } | |
| 1701 } | |
| 1702 //printf("-FuncDeclaration::isMember2() %p\n", ad); | |
| 1703 return ad; | |
| 1704 } | |
| 1705 | |
| 1706 /***************************************** | |
| 1707 * Determine lexical level difference from 'this' to nested function 'fd'. | |
| 1708 * Error if this cannot call fd. | |
| 1709 * Returns: | |
| 1710 * 0 same level | |
| 1711 * -1 increase nesting by 1 (fd is nested within 'this') | |
| 1712 * >0 decrease nesting by number | |
| 1713 */ | |
| 1714 | |
| 1715 int FuncDeclaration::getLevel(Loc loc, FuncDeclaration *fd) | |
| 1716 { int level; | |
| 1717 Dsymbol *s; | |
| 1718 Dsymbol *fdparent; | |
| 1719 | |
| 1720 //printf("FuncDeclaration::getLevel(fd = '%s')\n", fd->toChars()); | |
| 1721 fdparent = fd->toParent2(); | |
| 1722 if (fdparent == this) | |
| 1723 return -1; | |
| 1724 s = this; | |
| 1725 level = 0; | |
| 1726 while (fd != s && fdparent != s->toParent2()) | |
| 1727 { | |
| 1728 //printf("\ts = '%s'\n", s->toChars()); | |
| 1729 FuncDeclaration *thisfd = s->isFuncDeclaration(); | |
| 1730 if (thisfd) | |
| 1731 { if (!thisfd->isNested() && !thisfd->vthis) | |
| 1732 goto Lerr; | |
| 1733 } | |
| 1734 else | |
| 1735 { | |
| 1736 ClassDeclaration *thiscd = s->isClassDeclaration(); | |
| 1737 if (thiscd) | |
| 1738 { if (!thiscd->isNested()) | |
| 1739 goto Lerr; | |
| 1740 } | |
| 1741 else | |
| 1742 goto Lerr; | |
| 1743 } | |
| 1744 | |
| 1745 s = s->toParent2(); | |
| 1746 assert(s); | |
| 1747 level++; | |
| 1748 } | |
| 1749 return level; | |
| 1750 | |
| 1751 Lerr: | |
| 1752 error(loc, "cannot access frame of function %s", fd->toChars()); | |
| 1753 return 1; | |
| 1754 } | |
| 1755 | |
| 1756 void FuncDeclaration::appendExp(Expression *e) | |
| 1757 { Statement *s; | |
| 1758 | |
| 1759 s = new ExpStatement(0, e); | |
| 1760 appendState(s); | |
| 1761 } | |
| 1762 | |
| 1763 void FuncDeclaration::appendState(Statement *s) | |
| 1764 { CompoundStatement *cs; | |
| 1765 | |
| 1766 if (!fbody) | |
| 1767 { Statements *a; | |
| 1768 | |
| 1769 a = new Statements(); | |
| 1770 fbody = new CompoundStatement(0, a); | |
| 1771 } | |
| 1772 cs = fbody->isCompoundStatement(); | |
| 1773 cs->statements->push(s); | |
| 1774 } | |
| 1775 | |
| 1776 | |
| 1777 int FuncDeclaration::isMain() | |
| 1778 { | |
| 1779 return ident == Id::main && | |
| 1780 linkage != LINKc && !isMember() && !isNested(); | |
| 1781 } | |
| 1782 | |
| 1783 int FuncDeclaration::isWinMain() | |
| 1784 { | |
| 1785 return ident == Id::WinMain && | |
| 1786 linkage != LINKc && !isMember(); | |
| 1787 } | |
| 1788 | |
| 1789 int FuncDeclaration::isDllMain() | |
| 1790 { | |
| 1791 return ident == Id::DllMain && | |
| 1792 linkage != LINKc && !isMember(); | |
| 1793 } | |
| 1794 | |
| 1795 int FuncDeclaration::isExport() | |
| 1796 { | |
| 1797 return protection == PROTexport; | |
| 1798 } | |
| 1799 | |
| 1800 int FuncDeclaration::isImportedSymbol() | |
| 1801 { | |
| 1802 //printf("isImportedSymbol()\n"); | |
| 1803 //printf("protection = %d\n", protection); | |
| 1804 return (protection == PROTexport) && !fbody; | |
| 1805 } | |
| 1806 | |
| 1807 // Determine if function goes into virtual function pointer table | |
| 1808 | |
| 1809 int FuncDeclaration::isVirtual() | |
| 1810 { | |
| 1811 #if 0 | |
| 1812 printf("FuncDeclaration::isVirtual(%s)\n", toChars()); | |
| 1813 printf("%p %d %d %d %d\n", isMember(), isStatic(), protection == PROTprivate, isCtorDeclaration(), linkage != LINKd); | |
| 1814 printf("result is %d\n", | |
| 1815 isMember() && | |
| 1816 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && | |
| 1817 toParent()->isClassDeclaration()); | |
| 1818 #endif | |
| 1819 return isMember() && | |
| 1820 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && | |
| 1821 toParent()->isClassDeclaration(); | |
| 1822 } | |
| 1823 | |
| 1824 int FuncDeclaration::isAbstract() | |
| 1825 { | |
| 1826 return storage_class & STCabstract; | |
| 1827 } | |
| 1828 | |
| 1829 int FuncDeclaration::isCodeseg() | |
| 1830 { | |
| 1831 return TRUE; // functions are always in the code segment | |
| 1832 } | |
| 1833 | |
| 1834 // Determine if function needs | |
| 1835 // a static frame pointer to its lexically enclosing function | |
| 1836 | |
| 1837 int FuncDeclaration::isNested() | |
| 1838 { | |
| 1839 //if (!toParent()) | |
| 1840 //printf("FuncDeclaration::isNested('%s') parent=%p\n", toChars(), parent); | |
| 1841 //printf("\ttoParent() = '%s'\n", toParent()->toChars()); | |
| 1842 return ((storage_class & STCstatic) == 0) && | |
| 1843 (toParent2()->isFuncDeclaration() != NULL); | |
| 1844 } | |
| 1845 | |
| 1846 int FuncDeclaration::needThis() | |
| 1847 { | |
| 1848 //printf("FuncDeclaration::needThis() '%s'\n", toChars()); | |
| 1849 int i = isThis() != NULL; | |
| 1850 //printf("\t%d\n", i); | |
| 1851 if (!i && isFuncAliasDeclaration()) | |
| 1852 i = ((FuncAliasDeclaration *)this)->funcalias->needThis(); | |
| 1853 return i; | |
| 1854 } | |
| 1855 | |
| 1856 int FuncDeclaration::addPreInvariant() | |
| 1857 { | |
| 1858 AggregateDeclaration *ad = isThis(); | |
| 1859 return (ad && | |
| 1860 //ad->isClassDeclaration() && | |
| 1861 global.params.useInvariants && | |
| 1862 (protection == PROTpublic || protection == PROTexport) && | |
| 1863 !naked); | |
| 1864 } | |
| 1865 | |
| 1866 int FuncDeclaration::addPostInvariant() | |
| 1867 { | |
| 1868 AggregateDeclaration *ad = isThis(); | |
| 1869 return (ad && | |
| 1870 ad->inv && | |
| 1871 //ad->isClassDeclaration() && | |
| 1872 global.params.useInvariants && | |
| 1873 (protection == PROTpublic || protection == PROTexport) && | |
| 1874 !naked); | |
| 1875 } | |
| 1876 | |
| 1877 /********************************** | |
| 1878 * Generate a FuncDeclaration for a runtime library function. | |
| 1879 */ | |
| 1880 | |
| 1881 FuncDeclaration *FuncDeclaration::genCfunc(Type *treturn, char *name) | |
| 1882 { | |
| 1883 return genCfunc(treturn, Lexer::idPool(name)); | |
| 1884 } | |
| 1885 | |
| 1886 FuncDeclaration *FuncDeclaration::genCfunc(Type *treturn, Identifier *id) | |
| 1887 { | |
| 1888 FuncDeclaration *fd; | |
| 1889 TypeFunction *tf; | |
| 1890 Dsymbol *s; | |
| 1891 static DsymbolTable *st = NULL; | |
| 1892 | |
| 1893 //printf("genCfunc(name = '%s')\n", id->toChars()); | |
| 1894 //printf("treturn\n\t"); treturn->print(); | |
| 1895 | |
| 1896 // See if already in table | |
| 1897 if (!st) | |
| 1898 st = new DsymbolTable(); | |
| 1899 s = st->lookup(id); | |
| 1900 if (s) | |
| 1901 { | |
| 1902 fd = s->isFuncDeclaration(); | |
| 1903 assert(fd); | |
| 1904 assert(fd->type->nextOf()->equals(treturn)); | |
| 1905 } | |
| 1906 else | |
| 1907 { | |
| 1908 tf = new TypeFunction(NULL, treturn, 0, LINKc); | |
| 1909 fd = new FuncDeclaration(0, 0, id, STCstatic, tf); | |
| 1910 fd->protection = PROTpublic; | |
| 1911 fd->linkage = LINKc; | |
| 1912 | |
| 1913 st->insert(fd); | |
| 1914 } | |
| 1915 return fd; | |
| 1916 } | |
| 1917 | |
| 1918 char *FuncDeclaration::kind() | |
| 1919 { | |
| 1920 return "function"; | |
| 1921 } | |
| 1922 | |
| 1923 /****************************** FuncAliasDeclaration ************************/ | |
| 1924 | |
| 1925 // Used as a way to import a set of functions from another scope into this one. | |
| 1926 | |
| 1927 FuncAliasDeclaration::FuncAliasDeclaration(FuncDeclaration *funcalias) | |
| 1928 : FuncDeclaration(funcalias->loc, funcalias->endloc, funcalias->ident, | |
| 1929 (enum STC)funcalias->storage_class, funcalias->type) | |
| 1930 { | |
| 1931 assert(funcalias != this); | |
| 1932 this->funcalias = funcalias; | |
| 1933 } | |
| 1934 | |
| 1935 char *FuncAliasDeclaration::kind() | |
| 1936 { | |
| 1937 return "function alias"; | |
| 1938 } | |
| 1939 | |
| 1940 | |
| 1941 /****************************** FuncLiteralDeclaration ************************/ | |
| 1942 | |
| 1943 FuncLiteralDeclaration::FuncLiteralDeclaration(Loc loc, Loc endloc, Type *type, | |
| 1944 enum TOK tok, ForeachStatement *fes) | |
| 1945 : FuncDeclaration(loc, endloc, NULL, STCundefined, type) | |
| 1946 { | |
| 1947 char *id; | |
| 1948 | |
| 1949 if (fes) | |
| 1950 id = "__foreachbody"; | |
| 1951 else if (tok == TOKdelegate) | |
| 1952 id = "__dgliteral"; | |
| 1953 else | |
| 1954 id = "__funcliteral"; | |
| 1955 this->ident = Identifier::generateId(id); | |
| 1956 this->tok = tok; | |
| 1957 this->fes = fes; | |
| 1958 //printf("FuncLiteralDeclaration() id = '%s', type = '%s'\n", this->ident->toChars(), type->toChars()); | |
| 1959 } | |
| 1960 | |
| 1961 Dsymbol *FuncLiteralDeclaration::syntaxCopy(Dsymbol *s) | |
| 1962 { | |
| 1963 FuncLiteralDeclaration *f; | |
| 1964 | |
| 1965 //printf("FuncLiteralDeclaration::syntaxCopy('%s')\n", toChars()); | |
| 1966 if (s) | |
| 1967 f = (FuncLiteralDeclaration *)s; | |
| 1968 else | |
| 1969 f = new FuncLiteralDeclaration(loc, endloc, type->syntaxCopy(), tok, fes); | |
| 1970 FuncDeclaration::syntaxCopy(f); | |
| 1971 return f; | |
| 1972 } | |
| 1973 | |
| 1974 int FuncLiteralDeclaration::isNested() | |
| 1975 { | |
| 1976 //printf("FuncLiteralDeclaration::isNested() '%s'\n", toChars()); | |
| 1977 return (tok == TOKdelegate); | |
| 1978 } | |
| 1979 | |
| 1980 char *FuncLiteralDeclaration::kind() | |
| 1981 { | |
| 1982 // GCC requires the (char*) casts | |
| 1983 return (tok == TOKdelegate) ? (char*)"delegate" : (char*)"function"; | |
| 1984 } | |
| 1985 | |
| 1986 void FuncLiteralDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1987 { | |
| 1988 static Identifier *idfunc; | |
| 1989 static Identifier *iddel; | |
| 1990 | |
| 1991 if (!idfunc) | |
| 1992 idfunc = new Identifier("function", 0); | |
| 1993 if (!iddel) | |
| 1994 iddel = new Identifier("delegate", 0); | |
| 1995 | |
| 1996 type->toCBuffer(buf, ((tok == TOKdelegate) ? iddel : idfunc), hgs); | |
| 1997 bodyToCBuffer(buf, hgs); | |
| 1998 } | |
| 1999 | |
| 2000 | |
| 2001 /********************************* CtorDeclaration ****************************/ | |
| 2002 | |
| 2003 CtorDeclaration::CtorDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs) | |
| 2004 : FuncDeclaration(loc, endloc, Id::ctor, STCundefined, NULL) | |
| 2005 { | |
| 2006 this->arguments = arguments; | |
| 2007 this->varargs = varargs; | |
| 2008 //printf("CtorDeclaration() %s\n", toChars()); | |
| 2009 } | |
| 2010 | |
| 2011 Dsymbol *CtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2012 { | |
| 2013 CtorDeclaration *f; | |
| 2014 | |
| 2015 f = new CtorDeclaration(loc, endloc, NULL, varargs); | |
| 2016 | |
| 2017 f->outId = outId; | |
| 2018 f->frequire = frequire ? frequire->syntaxCopy() : NULL; | |
| 2019 f->fensure = fensure ? fensure->syntaxCopy() : NULL; | |
| 2020 f->fbody = fbody ? fbody->syntaxCopy() : NULL; | |
| 2021 assert(!fthrows); // deprecated | |
| 2022 | |
| 2023 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2024 return f; | |
| 2025 } | |
| 2026 | |
| 2027 | |
| 2028 void CtorDeclaration::semantic(Scope *sc) | |
| 2029 { | |
| 2030 ClassDeclaration *cd; | |
| 2031 Type *tret; | |
| 2032 | |
| 2033 //printf("CtorDeclaration::semantic()\n"); | |
| 2034 | |
| 2035 sc = sc->push(); | |
| 2036 sc->stc &= ~STCstatic; // not a static constructor | |
| 2037 | |
| 2038 parent = sc->parent; | |
| 2039 Dsymbol *parent = toParent(); | |
| 2040 cd = parent->isClassDeclaration(); | |
| 2041 if (!cd) | |
| 2042 { | |
| 2043 error("constructors only are for class definitions"); | |
| 2044 tret = Type::tvoid; | |
| 2045 } | |
| 2046 else | |
| 2047 tret = cd->type; //->referenceTo(); | |
| 2048 type = new TypeFunction(arguments, tret, varargs, LINKd); | |
| 2049 | |
| 2050 sc->flags |= SCOPEctor; | |
| 2051 type = type->semantic(loc, sc); | |
| 2052 sc->flags &= ~SCOPEctor; | |
| 2053 | |
| 2054 // Append: | |
| 2055 // return this; | |
| 2056 // to the function body | |
| 2057 if (fbody) | |
| 2058 { Expression *e; | |
| 2059 Statement *s; | |
| 2060 | |
| 2061 e = new ThisExp(0); | |
| 2062 s = new ReturnStatement(0, e); | |
| 2063 fbody = new CompoundStatement(0, fbody, s); | |
| 2064 } | |
| 2065 | |
| 2066 FuncDeclaration::semantic(sc); | |
| 2067 | |
| 2068 sc->pop(); | |
| 2069 | |
| 2070 // See if it's the default constructor | |
| 2071 if (cd && varargs == 0 && Argument::dim(arguments) == 0) | |
| 2072 cd->defaultCtor = this; | |
| 2073 } | |
| 2074 | |
| 2075 char *CtorDeclaration::kind() | |
| 2076 { | |
| 2077 return "constructor"; | |
| 2078 } | |
| 2079 | |
| 2080 char *CtorDeclaration::toChars() | |
| 2081 { | |
| 2082 return "this"; | |
| 2083 } | |
| 2084 | |
| 2085 int CtorDeclaration::isVirtual() | |
| 2086 { | |
| 2087 return FALSE; | |
| 2088 } | |
| 2089 | |
| 2090 int CtorDeclaration::addPreInvariant() | |
| 2091 { | |
| 2092 return FALSE; | |
| 2093 } | |
| 2094 | |
| 2095 int CtorDeclaration::addPostInvariant() | |
| 2096 { | |
| 2097 return (vthis && global.params.useInvariants); | |
| 2098 } | |
| 2099 | |
| 2100 | |
| 2101 void CtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2102 { | |
| 2103 buf->writestring("this"); | |
| 2104 Argument::argsToCBuffer(buf, hgs, arguments, varargs); | |
| 2105 bodyToCBuffer(buf, hgs); | |
| 2106 } | |
| 2107 | |
| 2108 /********************************* DtorDeclaration ****************************/ | |
| 2109 | |
| 2110 DtorDeclaration::DtorDeclaration(Loc loc, Loc endloc) | |
| 2111 : FuncDeclaration(loc, endloc, Id::dtor, STCundefined, NULL) | |
| 2112 { | |
| 2113 } | |
| 2114 | |
| 2115 Dsymbol *DtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2116 { | |
| 2117 DtorDeclaration *dd; | |
| 2118 | |
| 2119 assert(!s); | |
| 2120 dd = new DtorDeclaration(loc, endloc); | |
| 2121 return FuncDeclaration::syntaxCopy(dd); | |
| 2122 } | |
| 2123 | |
| 2124 | |
| 2125 void DtorDeclaration::semantic(Scope *sc) | |
| 2126 { | |
| 2127 ClassDeclaration *cd; | |
| 2128 | |
| 2129 parent = sc->parent; | |
| 2130 Dsymbol *parent = toParent(); | |
| 2131 cd = parent->isClassDeclaration(); | |
| 2132 if (!cd) | |
| 2133 { | |
| 2134 error("destructors only are for class definitions"); | |
| 2135 } | |
| 2136 else | |
| 2137 cd->dtors.push(this); | |
| 2138 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2139 | |
| 2140 sc = sc->push(); | |
| 2141 sc->stc &= ~STCstatic; // not a static destructor | |
| 2142 sc->linkage = LINKd; | |
| 2143 | |
| 2144 FuncDeclaration::semantic(sc); | |
| 2145 | |
| 2146 sc->pop(); | |
| 2147 } | |
| 2148 | |
| 2149 int DtorDeclaration::overloadInsert(Dsymbol *s) | |
| 2150 { | |
| 2151 return FALSE; // cannot overload destructors | |
| 2152 } | |
| 2153 | |
| 2154 int DtorDeclaration::addPreInvariant() | |
| 2155 { | |
| 2156 return (vthis && global.params.useInvariants); | |
| 2157 } | |
| 2158 | |
| 2159 int DtorDeclaration::addPostInvariant() | |
| 2160 { | |
| 2161 return FALSE; | |
| 2162 } | |
| 2163 | |
| 2164 int DtorDeclaration::isVirtual() | |
| 2165 { | |
| 2166 /* This should be FALSE so that dtor's don't get put into the vtbl[], | |
| 2167 * but doing so will require recompiling everything. | |
| 2168 */ | |
| 2169 #if BREAKABI | |
| 2170 return FALSE; | |
| 2171 #else | |
| 2172 return FuncDeclaration::isVirtual(); | |
| 2173 #endif | |
| 2174 } | |
| 2175 | |
| 2176 void DtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2177 { | |
| 2178 if (hgs->hdrgen) | |
| 2179 return; | |
| 2180 buf->writestring("~this()"); | |
| 2181 bodyToCBuffer(buf, hgs); | |
| 2182 } | |
| 2183 | |
| 2184 /********************************* StaticCtorDeclaration ****************************/ | |
| 2185 | |
| 2186 StaticCtorDeclaration::StaticCtorDeclaration(Loc loc, Loc endloc) | |
| 2187 : FuncDeclaration(loc, endloc, Id::staticCtor, STCstatic, NULL) | |
| 2188 { | |
| 2189 } | |
| 2190 | |
| 2191 Dsymbol *StaticCtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2192 { | |
| 2193 StaticCtorDeclaration *scd; | |
| 2194 | |
| 2195 assert(!s); | |
| 2196 scd = new StaticCtorDeclaration(loc, endloc); | |
| 2197 return FuncDeclaration::syntaxCopy(scd); | |
| 2198 } | |
| 2199 | |
| 2200 | |
| 2201 void StaticCtorDeclaration::semantic(Scope *sc) | |
| 2202 { | |
| 2203 //printf("StaticCtorDeclaration::semantic()\n"); | |
| 2204 | |
| 2205 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2206 | |
| 2207 FuncDeclaration::semantic(sc); | |
| 2208 | |
| 2209 // We're going to need ModuleInfo | |
| 2210 Module *m = getModule(); | |
| 2211 if (!m) | |
| 2212 m = sc->module; | |
| 2213 if (m) | |
| 2214 { m->needmoduleinfo = 1; | |
| 2215 #ifdef IN_GCC | |
| 2216 m->strictlyneedmoduleinfo = 1; | |
| 2217 #endif | |
| 2218 } | |
| 2219 } | |
| 2220 | |
| 2221 AggregateDeclaration *StaticCtorDeclaration::isThis() | |
| 2222 { | |
| 2223 return NULL; | |
| 2224 } | |
| 2225 | |
| 2226 int StaticCtorDeclaration::isStaticConstructor() | |
| 2227 { | |
| 2228 return TRUE; | |
| 2229 } | |
| 2230 | |
| 2231 int StaticCtorDeclaration::isVirtual() | |
| 2232 { | |
| 2233 return FALSE; | |
| 2234 } | |
| 2235 | |
| 2236 int StaticCtorDeclaration::addPreInvariant() | |
| 2237 { | |
| 2238 return FALSE; | |
| 2239 } | |
| 2240 | |
| 2241 int StaticCtorDeclaration::addPostInvariant() | |
| 2242 { | |
| 2243 return FALSE; | |
| 2244 } | |
| 2245 | |
| 2246 void StaticCtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2247 { | |
| 2248 if (hgs->hdrgen) | |
| 2249 { buf->writestring("static this(){}\n"); | |
| 2250 return; | |
| 2251 } | |
| 2252 buf->writestring("static this()"); | |
| 2253 bodyToCBuffer(buf, hgs); | |
| 2254 } | |
| 2255 | |
| 2256 /********************************* StaticDtorDeclaration ****************************/ | |
| 2257 | |
| 2258 StaticDtorDeclaration::StaticDtorDeclaration(Loc loc, Loc endloc) | |
| 2259 : FuncDeclaration(loc, endloc, Id::staticDtor, STCstatic, NULL) | |
| 2260 { | |
| 2261 } | |
| 2262 | |
| 2263 Dsymbol *StaticDtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2264 { | |
| 2265 StaticDtorDeclaration *sdd; | |
| 2266 | |
| 2267 assert(!s); | |
| 2268 sdd = new StaticDtorDeclaration(loc, endloc); | |
| 2269 return FuncDeclaration::syntaxCopy(sdd); | |
| 2270 } | |
| 2271 | |
| 2272 | |
| 2273 void StaticDtorDeclaration::semantic(Scope *sc) | |
| 2274 { | |
| 2275 ClassDeclaration *cd; | |
| 2276 Type *tret; | |
| 2277 | |
| 2278 cd = sc->scopesym->isClassDeclaration(); | |
| 2279 if (!cd) | |
| 2280 { | |
| 2281 } | |
| 2282 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2283 | |
| 2284 FuncDeclaration::semantic(sc); | |
| 2285 | |
| 2286 // We're going to need ModuleInfo | |
| 2287 Module *m = getModule(); | |
| 2288 if (!m) | |
| 2289 m = sc->module; | |
| 2290 if (m) | |
| 2291 { m->needmoduleinfo = 1; | |
| 2292 #ifdef IN_GCC | |
| 2293 m->strictlyneedmoduleinfo = 1; | |
| 2294 #endif | |
| 2295 } | |
| 2296 } | |
| 2297 | |
| 2298 AggregateDeclaration *StaticDtorDeclaration::isThis() | |
| 2299 { | |
| 2300 return NULL; | |
| 2301 } | |
| 2302 | |
| 2303 int StaticDtorDeclaration::isStaticDestructor() | |
| 2304 { | |
| 2305 return TRUE; | |
| 2306 } | |
| 2307 | |
| 2308 int StaticDtorDeclaration::isVirtual() | |
| 2309 { | |
| 2310 return FALSE; | |
| 2311 } | |
| 2312 | |
| 2313 int StaticDtorDeclaration::addPreInvariant() | |
| 2314 { | |
| 2315 return FALSE; | |
| 2316 } | |
| 2317 | |
| 2318 int StaticDtorDeclaration::addPostInvariant() | |
| 2319 { | |
| 2320 return FALSE; | |
| 2321 } | |
| 2322 | |
| 2323 void StaticDtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2324 { | |
| 2325 if (hgs->hdrgen) | |
| 2326 return; | |
| 2327 buf->writestring("static ~this()"); | |
| 2328 bodyToCBuffer(buf, hgs); | |
| 2329 } | |
| 2330 | |
| 2331 /********************************* InvariantDeclaration ****************************/ | |
| 2332 | |
| 2333 InvariantDeclaration::InvariantDeclaration(Loc loc, Loc endloc) | |
| 2334 : FuncDeclaration(loc, endloc, Id::classInvariant, STCundefined, NULL) | |
| 2335 { | |
| 2336 } | |
| 2337 | |
| 2338 Dsymbol *InvariantDeclaration::syntaxCopy(Dsymbol *s) | |
| 2339 { | |
| 2340 InvariantDeclaration *id; | |
| 2341 | |
| 2342 assert(!s); | |
| 2343 id = new InvariantDeclaration(loc, endloc); | |
| 2344 FuncDeclaration::syntaxCopy(id); | |
| 2345 return id; | |
| 2346 } | |
| 2347 | |
| 2348 | |
| 2349 void InvariantDeclaration::semantic(Scope *sc) | |
| 2350 { | |
| 2351 AggregateDeclaration *ad; | |
| 2352 Type *tret; | |
| 2353 | |
| 2354 parent = sc->parent; | |
| 2355 Dsymbol *parent = toParent(); | |
| 2356 ad = parent->isAggregateDeclaration(); | |
| 2357 if (!ad) | |
| 2358 { | |
| 2359 error("invariants only are for struct/union/class definitions"); | |
| 2360 return; | |
| 2361 } | |
| 2362 else if (ad->inv && ad->inv != this) | |
| 2363 { | |
| 2364 error("more than one invariant for %s", ad->toChars()); | |
| 2365 } | |
| 2366 ad->inv = this; | |
| 2367 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2368 | |
| 2369 sc = sc->push(); | |
| 2370 sc->stc &= ~STCstatic; // not a static invariant | |
| 2371 sc->incontract++; | |
| 2372 sc->linkage = LINKd; | |
| 2373 | |
| 2374 FuncDeclaration::semantic(sc); | |
| 2375 | |
| 2376 sc->pop(); | |
| 2377 } | |
| 2378 | |
| 2379 int InvariantDeclaration::isVirtual() | |
| 2380 { | |
| 2381 return FALSE; | |
| 2382 } | |
| 2383 | |
| 2384 int InvariantDeclaration::addPreInvariant() | |
| 2385 { | |
| 2386 return FALSE; | |
| 2387 } | |
| 2388 | |
| 2389 int InvariantDeclaration::addPostInvariant() | |
| 2390 { | |
| 2391 return FALSE; | |
| 2392 } | |
| 2393 | |
| 2394 void InvariantDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2395 { | |
| 2396 if (hgs->hdrgen) | |
| 2397 return; | |
| 2398 buf->writestring("invariant"); | |
| 2399 bodyToCBuffer(buf, hgs); | |
| 2400 } | |
| 2401 | |
| 2402 | |
| 2403 /********************************* UnitTestDeclaration ****************************/ | |
| 2404 | |
| 2405 /******************************* | |
| 2406 * Generate unique unittest function Id so we can have multiple | |
| 2407 * instances per module. | |
| 2408 */ | |
| 2409 | |
| 2410 static Identifier *unitTestId() | |
| 2411 { | |
| 2412 static int n; | |
| 2413 char buffer[10 + sizeof(n)*3 + 1]; | |
| 2414 | |
| 2415 sprintf(buffer,"__unittest%d", n); | |
| 2416 n++; | |
| 2417 return Lexer::idPool(buffer); | |
| 2418 } | |
| 2419 | |
| 2420 UnitTestDeclaration::UnitTestDeclaration(Loc loc, Loc endloc) | |
| 2421 : FuncDeclaration(loc, endloc, unitTestId(), STCundefined, NULL) | |
| 2422 { | |
| 2423 } | |
| 2424 | |
| 2425 Dsymbol *UnitTestDeclaration::syntaxCopy(Dsymbol *s) | |
| 2426 { | |
| 2427 UnitTestDeclaration *utd; | |
| 2428 | |
| 2429 assert(!s); | |
| 2430 utd = new UnitTestDeclaration(loc, endloc); | |
| 2431 return FuncDeclaration::syntaxCopy(utd); | |
| 2432 } | |
| 2433 | |
| 2434 | |
| 2435 void UnitTestDeclaration::semantic(Scope *sc) | |
| 2436 { | |
| 2437 if (global.params.useUnitTests) | |
| 2438 { | |
| 2439 Type *tret; | |
| 2440 | |
| 2441 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2442 FuncDeclaration::semantic(sc); | |
| 2443 } | |
| 2444 | |
| 2445 // We're going to need ModuleInfo even if the unit tests are not | |
| 2446 // compiled in, because other modules may import this module and refer | |
| 2447 // to this ModuleInfo. | |
| 2448 Module *m = getModule(); | |
| 2449 if (!m) | |
| 2450 m = sc->module; | |
| 2451 if (m) | |
| 2452 m->needmoduleinfo = 1; | |
| 2453 } | |
| 2454 | |
| 2455 AggregateDeclaration *UnitTestDeclaration::isThis() | |
| 2456 { | |
| 2457 return NULL; | |
| 2458 } | |
| 2459 | |
| 2460 int UnitTestDeclaration::isVirtual() | |
| 2461 { | |
| 2462 return FALSE; | |
| 2463 } | |
| 2464 | |
| 2465 int UnitTestDeclaration::addPreInvariant() | |
| 2466 { | |
| 2467 return FALSE; | |
| 2468 } | |
| 2469 | |
| 2470 int UnitTestDeclaration::addPostInvariant() | |
| 2471 { | |
| 2472 return FALSE; | |
| 2473 } | |
| 2474 | |
| 2475 void UnitTestDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2476 { | |
| 2477 if (hgs->hdrgen) | |
| 2478 return; | |
| 2479 buf->writestring("unittest"); | |
| 2480 bodyToCBuffer(buf, hgs); | |
| 2481 } | |
| 2482 | |
| 2483 /********************************* NewDeclaration ****************************/ | |
| 2484 | |
| 2485 NewDeclaration::NewDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs) | |
| 2486 : FuncDeclaration(loc, endloc, Id::classNew, STCstatic, NULL) | |
| 2487 { | |
| 2488 this->arguments = arguments; | |
| 2489 this->varargs = varargs; | |
| 2490 } | |
| 2491 | |
| 2492 Dsymbol *NewDeclaration::syntaxCopy(Dsymbol *s) | |
| 2493 { | |
| 2494 NewDeclaration *f; | |
| 2495 | |
| 2496 f = new NewDeclaration(loc, endloc, NULL, varargs); | |
| 2497 | |
| 2498 FuncDeclaration::syntaxCopy(f); | |
| 2499 | |
| 2500 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2501 | |
| 2502 return f; | |
| 2503 } | |
| 2504 | |
| 2505 | |
| 2506 void NewDeclaration::semantic(Scope *sc) | |
| 2507 { | |
| 2508 ClassDeclaration *cd; | |
| 2509 Type *tret; | |
| 2510 | |
| 2511 //printf("NewDeclaration::semantic()\n"); | |
| 2512 | |
| 2513 parent = sc->parent; | |
| 2514 Dsymbol *parent = toParent(); | |
| 2515 cd = parent->isClassDeclaration(); | |
| 2516 if (!cd && !parent->isStructDeclaration()) | |
| 2517 { | |
| 2518 error("new allocators only are for class or struct definitions"); | |
| 2519 } | |
| 2520 tret = Type::tvoid->pointerTo(); | |
| 2521 type = new TypeFunction(arguments, tret, varargs, LINKd); | |
| 2522 | |
| 2523 type = type->semantic(loc, sc); | |
| 2524 assert(type->ty == Tfunction); | |
| 2525 | |
| 2526 // Check that there is at least one argument of type uint | |
| 2527 TypeFunction *tf = (TypeFunction *)type; | |
| 2528 if (Argument::dim(tf->parameters) < 1) | |
| 2529 { | |
| 2530 error("at least one argument of type uint expected"); | |
| 2531 } | |
| 2532 else | |
| 2533 { | |
| 2534 Argument *a = Argument::getNth(tf->parameters, 0); | |
| 2535 if (!a->type->equals(Type::tuns32)) | |
| 2536 error("first argument must be type uint, not %s", a->type->toChars()); | |
| 2537 } | |
| 2538 | |
| 2539 FuncDeclaration::semantic(sc); | |
| 2540 } | |
| 2541 | |
| 2542 char *NewDeclaration::kind() | |
| 2543 { | |
| 2544 return "allocator"; | |
| 2545 } | |
| 2546 | |
| 2547 int NewDeclaration::isVirtual() | |
| 2548 { | |
| 2549 return FALSE; | |
| 2550 } | |
| 2551 | |
| 2552 int NewDeclaration::addPreInvariant() | |
| 2553 { | |
| 2554 return FALSE; | |
| 2555 } | |
| 2556 | |
| 2557 int NewDeclaration::addPostInvariant() | |
| 2558 { | |
| 2559 return FALSE; | |
| 2560 } | |
| 2561 | |
| 2562 void NewDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2563 { | |
| 2564 buf->writestring("new"); | |
| 2565 Argument::argsToCBuffer(buf, hgs, arguments, varargs); | |
| 2566 bodyToCBuffer(buf, hgs); | |
| 2567 } | |
| 2568 | |
| 2569 | |
| 2570 /********************************* DeleteDeclaration ****************************/ | |
| 2571 | |
| 2572 DeleteDeclaration::DeleteDeclaration(Loc loc, Loc endloc, Arguments *arguments) | |
| 2573 : FuncDeclaration(loc, endloc, Id::classDelete, STCstatic, NULL) | |
| 2574 { | |
| 2575 this->arguments = arguments; | |
| 2576 } | |
| 2577 | |
| 2578 Dsymbol *DeleteDeclaration::syntaxCopy(Dsymbol *s) | |
| 2579 { | |
| 2580 DeleteDeclaration *f; | |
| 2581 | |
| 2582 f = new DeleteDeclaration(loc, endloc, NULL); | |
| 2583 | |
| 2584 FuncDeclaration::syntaxCopy(f); | |
| 2585 | |
| 2586 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2587 | |
| 2588 return f; | |
| 2589 } | |
| 2590 | |
| 2591 | |
| 2592 void DeleteDeclaration::semantic(Scope *sc) | |
| 2593 { | |
| 2594 ClassDeclaration *cd; | |
| 2595 | |
| 2596 //printf("DeleteDeclaration::semantic()\n"); | |
| 2597 | |
| 2598 parent = sc->parent; | |
| 2599 Dsymbol *parent = toParent(); | |
| 2600 cd = parent->isClassDeclaration(); | |
| 2601 if (!cd && !parent->isStructDeclaration()) | |
| 2602 { | |
| 2603 error("new allocators only are for class or struct definitions"); | |
| 2604 } | |
| 2605 type = new TypeFunction(arguments, Type::tvoid, 0, LINKd); | |
| 2606 | |
| 2607 type = type->semantic(loc, sc); | |
| 2608 assert(type->ty == Tfunction); | |
| 2609 | |
| 2610 // Check that there is only one argument of type void* | |
| 2611 TypeFunction *tf = (TypeFunction *)type; | |
| 2612 if (Argument::dim(tf->parameters) != 1) | |
| 2613 { | |
| 2614 error("one argument of type void* expected"); | |
| 2615 } | |
| 2616 else | |
| 2617 { | |
| 2618 Argument *a = Argument::getNth(tf->parameters, 0); | |
| 2619 if (!a->type->equals(Type::tvoid->pointerTo())) | |
| 2620 error("one argument of type void* expected, not %s", a->type->toChars()); | |
| 2621 } | |
| 2622 | |
| 2623 FuncDeclaration::semantic(sc); | |
| 2624 } | |
| 2625 | |
| 2626 char *DeleteDeclaration::kind() | |
| 2627 { | |
| 2628 return "deallocator"; | |
| 2629 } | |
| 2630 | |
| 2631 int DeleteDeclaration::isDelete() | |
| 2632 { | |
| 2633 return TRUE; | |
| 2634 } | |
| 2635 | |
| 2636 int DeleteDeclaration::isVirtual() | |
| 2637 { | |
| 2638 return FALSE; | |
| 2639 } | |
| 2640 | |
| 2641 int DeleteDeclaration::addPreInvariant() | |
| 2642 { | |
| 2643 return FALSE; | |
| 2644 } | |
| 2645 | |
| 2646 int DeleteDeclaration::addPostInvariant() | |
| 2647 { | |
| 2648 return FALSE; | |
| 2649 } | |
| 2650 | |
| 2651 void DeleteDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2652 { | |
| 2653 buf->writestring("delete"); | |
| 2654 Argument::argsToCBuffer(buf, hgs, arguments, 0); | |
| 2655 bodyToCBuffer(buf, hgs); | |
| 2656 } | |
| 2657 | |
| 2658 | |
| 2659 | |
| 2660 |