Mercurial > projects > ldc
annotate dmd/func.c @ 19:788401029ecf trunk
[svn r23] * Updated to DMD 1.021
| author | lindquist |
|---|---|
| date | Thu, 04 Oct 2007 03:42:56 +0200 |
| parents | 37a4fdab33fc |
| children | 3cfcb944304e |
| 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; |
|
15
37a4fdab33fc
[svn r19] * Added support for reassigning 'this' inside class constructors.
lindquist
parents:
11
diff
changeset
|
77 llvmThisVar = NULL; |
| 1 | 78 } |
| 79 | |
| 80 Dsymbol *FuncDeclaration::syntaxCopy(Dsymbol *s) | |
| 81 { | |
| 82 FuncDeclaration *f; | |
| 83 | |
| 84 //printf("FuncDeclaration::syntaxCopy('%s')\n", toChars()); | |
| 85 if (s) | |
| 86 f = (FuncDeclaration *)s; | |
| 87 else | |
| 88 f = new FuncDeclaration(loc, endloc, ident, (enum STC) storage_class, type->syntaxCopy()); | |
| 89 f->outId = outId; | |
| 90 f->frequire = frequire ? frequire->syntaxCopy() : NULL; | |
| 91 f->fensure = fensure ? fensure->syntaxCopy() : NULL; | |
| 92 f->fbody = fbody ? fbody->syntaxCopy() : NULL; | |
| 93 assert(!fthrows); // deprecated | |
| 94 return f; | |
| 95 } | |
| 96 | |
| 97 | |
| 98 // Do the semantic analysis on the external interface to the function. | |
| 99 | |
| 100 void FuncDeclaration::semantic(Scope *sc) | |
| 101 { TypeFunction *f; | |
| 102 StructDeclaration *sd; | |
| 103 ClassDeclaration *cd; | |
| 104 InterfaceDeclaration *id; | |
| 105 | |
| 106 #if 0 | |
| 107 printf("FuncDeclaration::semantic(sc = %p, this = %p, '%s', linkage = %d)\n", sc, this, toPrettyChars(), sc->linkage); | |
| 108 if (isFuncLiteralDeclaration()) | |
| 109 printf("\tFuncLiteralDeclaration()\n"); | |
| 110 printf("sc->parent = %s\n", sc->parent->toChars()); | |
| 111 printf("type: %s\n", type->toChars()); | |
| 112 #endif | |
| 113 | |
| 114 if (type->nextOf()) | |
| 115 type = type->semantic(loc, sc); | |
| 116 //type->print(); | |
| 117 if (type->ty != Tfunction) | |
| 118 { | |
| 119 error("%s must be a function", toChars()); | |
| 120 return; | |
| 121 } | |
| 122 f = (TypeFunction *)(type); | |
| 123 size_t nparams = Argument::dim(f->parameters); | |
| 124 | |
| 125 linkage = sc->linkage; | |
| 126 // if (!parent) | |
| 127 { | |
| 128 //parent = sc->scopesym; | |
| 129 parent = sc->parent; | |
| 130 } | |
| 131 protection = sc->protection; | |
| 132 storage_class |= sc->stc; | |
| 133 //printf("function storage_class = x%x\n", storage_class); | |
| 134 Dsymbol *parent = toParent(); | |
| 135 | |
| 136 if (isConst() || isAuto() || isScope()) | |
| 137 error("functions cannot be const or auto"); | |
| 138 | |
| 139 if (isAbstract() && !isVirtual()) | |
| 140 error("non-virtual functions cannot be abstract"); | |
| 141 #if 0 | |
| 142 if (isAbstract() && fbody) | |
| 143 error("abstract functions cannot have bodies"); | |
| 144 #endif | |
| 145 | |
| 146 #if 0 | |
| 147 if (isStaticConstructor() || isStaticDestructor()) | |
| 148 { | |
| 149 if (!isStatic() || type->nextOf()->ty != Tvoid) | |
| 150 error("static constructors / destructors must be static void"); | |
| 151 if (f->arguments && f->arguments->dim) | |
| 152 error("static constructors / destructors must have empty parameter list"); | |
| 153 // BUG: check for invalid storage classes | |
| 154 } | |
| 155 #endif | |
| 156 | |
| 157 #ifdef IN_GCC | |
| 158 AggregateDeclaration *ad; | |
| 159 | |
| 160 ad = parent->isAggregateDeclaration(); | |
| 161 if (ad) | |
| 162 ad->methods.push(this); | |
| 163 #endif | |
| 164 sd = parent->isStructDeclaration(); | |
| 165 if (sd) | |
| 166 { | |
| 167 // Verify no constructors, destructors, etc. | |
| 168 if (isCtorDeclaration() || | |
| 169 isDtorDeclaration() | |
| 170 //|| isInvariantDeclaration() | |
| 171 //|| isUnitTestDeclaration() | |
| 172 ) | |
| 173 { | |
| 174 error("special member functions not allowed for %ss", sd->kind()); | |
| 175 } | |
| 176 | |
| 177 #if 0 | |
| 178 if (!sd->inv) | |
| 179 sd->inv = isInvariantDeclaration(); | |
| 180 | |
| 181 if (!sd->aggNew) | |
| 182 sd->aggNew = isNewDeclaration(); | |
| 183 | |
| 184 if (isDelete()) | |
| 185 { | |
| 186 if (sd->aggDelete) | |
| 187 error("multiple delete's for struct %s", sd->toChars()); | |
| 188 sd->aggDelete = (DeleteDeclaration *)(this); | |
| 189 } | |
| 190 #endif | |
| 191 } | |
| 192 | |
| 193 id = parent->isInterfaceDeclaration(); | |
| 194 if (id) | |
| 195 { | |
| 196 storage_class |= STCabstract; | |
| 197 | |
| 198 if (isCtorDeclaration() || | |
| 199 isDtorDeclaration() || | |
| 200 isInvariantDeclaration() || | |
| 201 isUnitTestDeclaration() || isNewDeclaration() || isDelete()) | |
| 202 error("special function not allowed in interface %s", id->toChars()); | |
| 203 if (fbody) | |
| 204 error("function body is not abstract in interface %s", id->toChars()); | |
| 205 } | |
| 206 | |
| 207 cd = parent->isClassDeclaration(); | |
| 208 if (cd) | |
| 209 { int vi; | |
| 210 CtorDeclaration *ctor; | |
| 211 DtorDeclaration *dtor; | |
| 212 InvariantDeclaration *inv; | |
| 213 | |
| 214 if (isCtorDeclaration()) | |
| 215 { | |
| 216 // ctor = (CtorDeclaration *)this; | |
| 217 // if (!cd->ctor) | |
| 218 // cd->ctor = ctor; | |
| 219 return; | |
| 220 } | |
| 221 | |
| 222 #if 0 | |
| 223 dtor = isDtorDeclaration(); | |
| 224 if (dtor) | |
| 225 { | |
| 226 if (cd->dtor) | |
| 227 error("multiple destructors for class %s", cd->toChars()); | |
| 228 cd->dtor = dtor; | |
| 229 } | |
| 230 | |
| 231 inv = isInvariantDeclaration(); | |
| 232 if (inv) | |
| 233 { | |
| 234 cd->inv = inv; | |
| 235 } | |
| 236 | |
| 237 if (isNewDeclaration()) | |
| 238 { | |
| 239 if (!cd->aggNew) | |
| 240 cd->aggNew = (NewDeclaration *)(this); | |
| 241 } | |
| 242 | |
| 243 if (isDelete()) | |
| 244 { | |
| 245 if (cd->aggDelete) | |
| 246 error("multiple delete's for class %s", cd->toChars()); | |
| 247 cd->aggDelete = (DeleteDeclaration *)(this); | |
| 248 } | |
| 249 #endif | |
| 250 | |
| 251 if (storage_class & STCabstract) | |
| 252 cd->isabstract = 1; | |
| 253 | |
| 254 // if static function, do not put in vtbl[] | |
| 255 if (!isVirtual()) | |
| 256 { | |
| 257 //printf("\tnot virtual\n"); | |
| 19 | 258 goto Ldone; |
| 1 | 259 } |
| 260 | |
| 261 // Find index of existing function in vtbl[] to override | |
| 262 if (cd->baseClass) | |
| 263 { | |
| 264 for (vi = 0; vi < cd->baseClass->vtbl.dim; vi++) | |
| 265 { | |
| 266 FuncDeclaration *fdv = ((Dsymbol *)cd->vtbl.data[vi])->isFuncDeclaration(); | |
| 267 | |
| 268 // BUG: should give error if argument types match, | |
| 269 // but return type does not? | |
| 270 | |
| 271 //printf("\tvtbl[%d] = '%s'\n", vi, fdv ? fdv->ident->toChars() : ""); | |
| 272 if (fdv && fdv->ident == ident) | |
| 273 { | |
| 274 int cov = type->covariant(fdv->type); | |
| 275 //printf("\tbaseclass cov = %d\n", cov); | |
| 276 if (cov == 2) | |
| 277 { | |
| 278 //type->print(); | |
| 279 //fdv->type->print(); | |
| 280 //printf("%s %s\n", type->deco, fdv->type->deco); | |
| 281 error("of type %s overrides but is not covariant with %s of type %s", | |
| 282 type->toChars(), fdv->toPrettyChars(), fdv->type->toChars()); | |
| 283 } | |
| 284 if (cov == 1) | |
| 285 { | |
| 286 if (fdv->isFinal()) | |
| 287 error("cannot override final function %s", fdv->toPrettyChars()); | |
| 288 if (fdv->toParent() == parent) | |
| 289 { | |
| 290 // If both are mixins, then error. | |
| 291 // If either is not, the one that is not overrides | |
| 292 // the other. | |
| 293 if (fdv->parent->isClassDeclaration()) | |
| 294 goto L1; | |
| 295 if (!this->parent->isClassDeclaration() | |
| 296 #if !BREAKABI | |
| 297 && !isDtorDeclaration() | |
| 298 #endif | |
| 299 ) | |
| 300 error("multiple overrides of same function"); | |
| 301 } | |
| 302 cd->vtbl.data[vi] = (void *)this; | |
| 303 vtblIndex = vi; | |
| 304 | |
| 305 /* This works by whenever this function is called, | |
| 306 * it actually returns tintro, which gets dynamically | |
| 307 * cast to type. But we know that tintro is a base | |
| 308 * of type, so we could optimize it by not doing a | |
| 309 * dynamic cast, but just subtracting the isBaseOf() | |
| 310 * offset if the value is != null. | |
| 311 */ | |
| 312 | |
| 313 if (fdv->tintro) | |
| 314 tintro = fdv->tintro; | |
| 315 else if (!type->equals(fdv->type)) | |
| 316 { | |
| 317 /* Only need to have a tintro if the vptr | |
| 318 * offsets differ | |
| 319 */ | |
| 320 int offset; | |
| 321 if (fdv->type->nextOf()->isBaseOf(type->nextOf(), &offset)) | |
| 322 { | |
| 323 tintro = fdv->type; | |
| 324 } | |
| 325 } | |
| 326 goto L1; | |
| 327 } | |
| 328 if (cov == 3) | |
| 329 { | |
| 330 cd->sizeok = 2; // can't finish due to forward reference | |
| 331 return; | |
| 332 } | |
| 333 } | |
| 334 } | |
| 335 } | |
| 336 | |
| 337 // This is an 'introducing' function. | |
| 338 | |
| 339 // Verify this doesn't override previous final function | |
| 340 if (cd->baseClass) | |
| 341 { Dsymbol *s = cd->baseClass->search(loc, ident, 0); | |
| 342 if (s) | |
| 343 { | |
| 344 FuncDeclaration *f = s->isFuncDeclaration(); | |
| 345 f = f->overloadExactMatch(type); | |
| 346 if (f && f->isFinal() && f->prot() != PROTprivate) | |
| 347 error("cannot override final function %s", f->toPrettyChars()); | |
| 348 } | |
| 349 } | |
| 350 | |
| 351 if (isFinal()) | |
| 352 { | |
| 353 cd->vtblFinal.push(this); | |
| 354 } | |
| 355 else | |
| 356 { | |
| 357 // Append to end of vtbl[] | |
| 358 //printf("\tintroducing function\n"); | |
| 359 introducing = 1; | |
| 360 vi = cd->vtbl.dim; | |
| 361 cd->vtbl.push(this); | |
| 362 vtblIndex = vi; | |
| 363 } | |
| 364 | |
| 365 L1: ; | |
| 366 | |
| 367 /* Go through all the interface bases. | |
| 368 * If this function is covariant with any members of those interface | |
| 369 * functions, set the tintro. | |
| 370 */ | |
| 371 for (int i = 0; i < cd->interfaces_dim; i++) | |
| 372 { | |
| 373 BaseClass *b = cd->interfaces[i]; | |
| 374 for (vi = 0; vi < b->base->vtbl.dim; vi++) | |
| 375 { | |
| 376 Dsymbol *s = (Dsymbol *)b->base->vtbl.data[vi]; | |
| 377 //printf("interface %d vtbl[%d] %p %s\n", i, vi, s, s->toChars()); | |
| 378 FuncDeclaration *fdv = s->isFuncDeclaration(); | |
| 379 if (fdv && fdv->ident == ident) | |
| 380 { | |
| 381 int cov = type->covariant(fdv->type); | |
| 382 //printf("\tcov = %d\n", cov); | |
| 383 if (cov == 2) | |
| 384 { | |
| 385 //type->print(); | |
| 386 //fdv->type->print(); | |
| 387 //printf("%s %s\n", type->deco, fdv->type->deco); | |
| 388 error("of type %s overrides but is not covariant with %s of type %s", | |
| 389 type->toChars(), fdv->toPrettyChars(), fdv->type->toChars()); | |
| 390 } | |
| 391 if (cov == 1) | |
| 392 { Type *ti = NULL; | |
| 393 | |
| 394 if (fdv->tintro) | |
| 395 ti = fdv->tintro; | |
| 396 else if (!type->equals(fdv->type)) | |
| 397 { | |
| 398 /* Only need to have a tintro if the vptr | |
| 399 * offsets differ | |
| 400 */ | |
| 401 int offset; | |
| 402 if (fdv->type->nextOf()->isBaseOf(type->nextOf(), &offset)) | |
| 403 { | |
| 404 ti = fdv->type; | |
| 405 #if 0 | |
| 406 if (offset) | |
| 407 ti = fdv->type; | |
| 19 | 408 else if (type->nextOf()->ty == Tclass) |
| 409 { ClassDeclaration *cdn = ((TypeClass *)type->nextOf())->sym; | |
| 1 | 410 if (cdn && cdn->sizeok != 1) |
| 411 ti = fdv->type; | |
| 412 } | |
| 413 #endif | |
| 414 } | |
| 415 } | |
| 416 if (ti) | |
| 417 { | |
| 418 if (tintro && !tintro->equals(ti)) | |
| 419 { | |
| 420 error("incompatible covariant types %s and %s", tintro->toChars(), ti->toChars()); | |
| 421 } | |
| 422 tintro = ti; | |
| 423 } | |
| 424 goto L2; | |
| 425 } | |
| 426 if (cov == 3) | |
| 427 { | |
| 428 cd->sizeok = 2; // can't finish due to forward reference | |
| 429 return; | |
| 430 } | |
| 431 } | |
| 432 } | |
| 433 } | |
| 434 | |
| 435 if (introducing && isOverride()) | |
| 436 { | |
| 437 error("function %s does not override any", toChars()); | |
| 438 } | |
| 439 | |
| 440 L2: ; | |
| 441 } | |
| 442 else if (isOverride() && !parent->isTemplateInstance()) | |
| 443 error("override only applies to class member functions"); | |
| 444 | |
| 445 /* Do not allow template instances to add virtual functions | |
| 446 * to a class. | |
| 447 */ | |
| 448 if (isVirtual()) | |
| 449 { | |
| 450 TemplateInstance *ti = parent->isTemplateInstance(); | |
| 451 if (ti) | |
| 452 { | |
| 453 // Take care of nested templates | |
| 454 while (1) | |
| 455 { | |
| 456 TemplateInstance *ti2 = ti->tempdecl->parent->isTemplateInstance(); | |
| 457 if (!ti2) | |
| 458 break; | |
| 459 ti = ti2; | |
| 460 } | |
| 461 | |
| 462 // If it's a member template | |
| 463 ClassDeclaration *cd = ti->tempdecl->isClassMember(); | |
| 464 if (cd) | |
| 465 { | |
| 466 error("cannot use template to add virtual function to class '%s'", cd->toChars()); | |
| 467 } | |
| 468 } | |
| 469 } | |
| 470 | |
| 471 if (isMain()) | |
| 472 { | |
| 473 // Check parameters to see if they are either () or (char[][] args) | |
| 474 switch (nparams) | |
| 475 { | |
| 476 case 0: | |
| 477 break; | |
| 478 | |
| 479 case 1: | |
| 480 { | |
| 481 Argument *arg0 = Argument::getNth(f->parameters, 0); | |
| 482 if (arg0->type->ty != Tarray || | |
| 19 | 483 arg0->type->nextOf()->ty != Tarray || |
| 484 arg0->type->nextOf()->nextOf()->ty != Tchar || | |
| 1 | 485 arg0->storageClass & (STCout | STCref | STClazy)) |
| 486 goto Lmainerr; | |
| 487 break; | |
| 488 } | |
| 489 | |
| 490 default: | |
| 491 goto Lmainerr; | |
| 492 } | |
| 493 | |
| 494 if (f->nextOf()->ty != Tint32 && f->nextOf()->ty != Tvoid) | |
| 495 error("must return int or void, not %s", f->nextOf()->toChars()); | |
| 496 if (f->varargs) | |
| 497 { | |
| 498 Lmainerr: | |
| 499 error("parameters must be main() or main(char[][] args)"); | |
| 500 } | |
| 501 } | |
| 502 | |
| 503 if (ident == Id::assign && (sd || cd)) | |
| 504 { // Disallow identity assignment operator. | |
| 505 | |
| 506 // opAssign(...) | |
| 507 if (nparams == 0) | |
| 508 { if (f->varargs == 1) | |
| 509 goto Lassignerr; | |
| 510 } | |
| 511 else | |
| 512 { | |
| 513 Argument *arg0 = Argument::getNth(f->parameters, 0); | |
| 514 Type *t0 = arg0->type->toBasetype(); | |
| 515 Type *tb = sd ? sd->type : cd->type; | |
| 516 if (arg0->type->implicitConvTo(tb) || | |
| 517 (sd && t0->ty == Tpointer && t0->nextOf()->implicitConvTo(tb)) | |
| 518 ) | |
| 519 { | |
| 520 if (nparams == 1) | |
| 521 goto Lassignerr; | |
| 522 Argument *arg1 = Argument::getNth(f->parameters, 1); | |
| 523 if (arg1->defaultArg) | |
| 524 goto Lassignerr; | |
| 525 } | |
| 526 } | |
| 527 } | |
| 528 | |
| 19 | 529 Ldone: |
| 1 | 530 /* Save scope for possible later use (if we need the |
| 531 * function internals) | |
| 532 */ | |
| 533 scope = new Scope(*sc); | |
| 534 scope->setNoFree(); | |
| 535 return; | |
| 536 | |
| 537 Lassignerr: | |
| 538 error("identity assignment operator overload is illegal"); | |
| 539 } | |
| 540 | |
| 541 void FuncDeclaration::semantic2(Scope *sc) | |
| 542 { | |
| 543 } | |
| 544 | |
| 545 // Do the semantic analysis on the internals of the function. | |
| 546 | |
| 547 void FuncDeclaration::semantic3(Scope *sc) | |
| 548 { TypeFunction *f; | |
| 549 AggregateDeclaration *ad; | |
| 550 VarDeclaration *argptr = NULL; | |
| 551 VarDeclaration *_arguments = NULL; | |
| 552 | |
| 553 if (!parent) | |
| 554 { | |
| 555 printf("FuncDeclaration::semantic3(%s '%s', sc = %p)\n", kind(), toChars(), sc); | |
| 556 assert(0); | |
| 557 } | |
| 558 //printf("FuncDeclaration::semantic3('%s.%s', sc = %p)\n", parent->toChars(), toChars(), sc); | |
| 559 //fflush(stdout); | |
| 560 //{ static int x; if (++x == 2) *(char*)0=0; } | |
| 561 //printf("\tlinkage = %d\n", sc->linkage); | |
| 562 | |
| 563 //printf(" sc->incontract = %d\n", sc->incontract); | |
| 564 if (semanticRun) | |
| 565 return; | |
| 566 semanticRun = 1; | |
| 567 | |
| 568 if (!type || type->ty != Tfunction) | |
| 569 return; | |
| 570 f = (TypeFunction *)(type); | |
| 571 size_t nparams = Argument::dim(f->parameters); | |
| 572 | |
| 573 // Check the 'throws' clause | |
| 574 if (fthrows) | |
| 575 { int i; | |
| 576 | |
| 577 for (i = 0; i < fthrows->dim; i++) | |
| 578 { | |
| 579 Type *t = (Type *)fthrows->data[i]; | |
| 580 | |
| 581 t = t->semantic(loc, sc); | |
| 582 if (!t->isClassHandle()) | |
| 583 error("can only throw classes, not %s", t->toChars()); | |
| 584 } | |
| 585 } | |
| 586 | |
| 587 if (fbody || frequire) | |
| 588 { | |
| 589 // Establish function scope | |
| 590 ScopeDsymbol *ss; | |
| 591 Scope *sc2; | |
| 592 | |
| 593 localsymtab = new DsymbolTable(); | |
| 594 | |
| 595 ss = new ScopeDsymbol(); | |
| 596 ss->parent = sc->scopesym; | |
| 597 sc2 = sc->push(ss); | |
| 598 sc2->func = this; | |
| 599 sc2->parent = this; | |
| 600 sc2->callSuper = 0; | |
| 601 sc2->sbreak = NULL; | |
| 602 sc2->scontinue = NULL; | |
| 603 sc2->sw = NULL; | |
| 604 sc2->fes = fes; | |
| 605 sc2->linkage = LINKd; | |
| 606 sc2->stc &= ~(STCauto | STCscope | STCstatic | STCabstract | STCdeprecated); | |
| 607 sc2->protection = PROTpublic; | |
| 608 sc2->explicitProtection = 0; | |
| 609 sc2->structalign = 8; | |
| 610 sc2->incontract = 0; | |
| 611 sc2->tf = NULL; | |
| 612 sc2->noctor = 0; | |
| 613 | |
| 614 // Declare 'this' | |
| 615 ad = isThis(); | |
| 616 if (ad) | |
| 617 { VarDeclaration *v; | |
| 618 | |
| 619 if (isFuncLiteralDeclaration() && isNested()) | |
| 620 { | |
| 621 error("literals cannot be class members"); | |
| 622 return; | |
| 623 } | |
| 624 else | |
| 625 { | |
| 626 assert(!isNested()); // can't be both member and nested | |
| 627 assert(ad->handle); | |
| 628 v = new ThisDeclaration(ad->handle); | |
| 629 v->storage_class |= STCparameter | STCin; | |
| 630 v->semantic(sc2); | |
| 631 if (!sc2->insert(v)) | |
| 632 assert(0); | |
| 633 v->parent = this; | |
| 634 vthis = v; | |
| 635 } | |
| 636 } | |
| 637 else if (isNested()) | |
| 638 { | |
| 639 VarDeclaration *v; | |
| 640 | |
| 641 v = new ThisDeclaration(Type::tvoid->pointerTo()); | |
| 642 v->storage_class |= STCparameter | STCin; | |
| 643 v->semantic(sc2); | |
| 644 if (!sc2->insert(v)) | |
| 645 assert(0); | |
| 646 v->parent = this; | |
| 647 vthis = v; | |
| 648 } | |
| 649 | |
| 650 // Declare hidden variable _arguments[] and _argptr | |
| 651 if (f->varargs == 1) | |
| 652 { Type *t; | |
| 653 | |
| 654 if (f->linkage == LINKd) | |
| 655 { // Declare _arguments[] | |
| 656 #if BREAKABI | |
| 657 v_arguments = new VarDeclaration(0, Type::typeinfotypelist->type, Id::_arguments_typeinfo, NULL); | |
| 658 v_arguments->storage_class = STCparameter | STCin; | |
| 659 v_arguments->semantic(sc2); | |
| 660 sc2->insert(v_arguments); | |
| 661 v_arguments->parent = this; | |
| 662 | |
| 663 t = Type::typeinfo->type->arrayOf(); | |
| 664 _arguments = new VarDeclaration(0, t, Id::_arguments, NULL); | |
| 665 _arguments->semantic(sc2); | |
| 666 sc2->insert(_arguments); | |
| 667 _arguments->parent = this; | |
| 668 #else | |
| 669 t = Type::typeinfo->type->arrayOf(); | |
| 670 v_arguments = new VarDeclaration(0, t, Id::_arguments, NULL); | |
| 671 v_arguments->storage_class = STCparameter | STCin; | |
| 672 v_arguments->semantic(sc2); | |
| 673 sc2->insert(v_arguments); | |
| 674 v_arguments->parent = this; | |
| 675 #endif | |
| 676 } | |
| 677 if (f->linkage == LINKd || (parameters && parameters->dim)) | |
| 678 { // Declare _argptr | |
| 679 #if IN_GCC | |
| 680 t = d_gcc_builtin_va_list_d_type; | |
| 681 #else | |
| 682 t = Type::tvoid->pointerTo(); | |
| 683 #endif | |
| 684 argptr = new VarDeclaration(0, t, Id::_argptr, NULL); | |
| 685 argptr->semantic(sc2); | |
| 686 sc2->insert(argptr); | |
| 687 argptr->parent = this; | |
| 688 } | |
| 689 } | |
| 690 | |
| 691 // Propagate storage class from tuple arguments to their sub-arguments. | |
| 692 if (f->parameters) | |
| 693 { | |
| 694 for (size_t i = 0; i < f->parameters->dim; i++) | |
| 695 { Argument *arg = (Argument *)f->parameters->data[i]; | |
| 696 | |
| 697 if (arg->type->ty == Ttuple) | |
| 698 { TypeTuple *t = (TypeTuple *)arg->type; | |
| 699 size_t dim = Argument::dim(t->arguments); | |
| 700 for (size_t j = 0; j < dim; j++) | |
| 701 { Argument *narg = Argument::getNth(t->arguments, j); | |
| 702 narg->storageClass = arg->storageClass; | |
| 703 } | |
| 704 } | |
| 705 } | |
| 706 } | |
| 707 | |
| 708 // Declare all the function parameters as variables | |
| 709 if (nparams) | |
| 710 { // parameters[] has all the tuples removed, as the back end | |
| 711 // doesn't know about tuples | |
| 712 parameters = new Dsymbols(); | |
| 713 parameters->reserve(nparams); | |
| 714 for (size_t i = 0; i < nparams; i++) | |
| 715 { | |
| 716 Argument *arg = Argument::getNth(f->parameters, i); | |
| 717 Identifier *id = arg->ident; | |
| 718 if (!id) | |
| 719 { | |
| 720 //error("no identifier for parameter %d of %s", i + 1, toChars()); | |
| 721 OutBuffer buf; | |
| 722 buf.printf("_param_%zu", i); | |
| 723 char *name = (char *)buf.extractData(); | |
| 724 id = new Identifier(name, TOKidentifier); | |
| 725 arg->ident = id; | |
| 726 } | |
| 727 VarDeclaration *v = new VarDeclaration(0, arg->type, id, NULL); | |
| 728 //printf("declaring parameter %s of type %s\n", v->toChars(), v->type->toChars()); | |
| 729 v->storage_class |= STCparameter; | |
| 730 if (f->varargs == 2 && i + 1 == nparams) | |
| 731 v->storage_class |= STCvariadic; | |
| 732 v->storage_class |= arg->storageClass & (STCin | STCout | STCref | STClazy); | |
| 733 if (v->storage_class & STClazy) | |
| 734 v->storage_class |= STCin; | |
| 735 v->semantic(sc2); | |
| 736 if (!sc2->insert(v)) | |
| 737 error("parameter %s.%s is already defined", toChars(), v->toChars()); | |
| 738 else | |
| 739 parameters->push(v); | |
| 740 localsymtab->insert(v); | |
| 741 v->parent = this; | |
| 742 // for llvm d | |
| 743 arg->vardecl = v; | |
| 744 } | |
| 745 } | |
| 746 | |
| 747 // Declare the tuple symbols and put them in the symbol table, | |
| 748 // but not in parameters[]. | |
| 749 if (f->parameters) | |
| 750 { | |
| 751 for (size_t i = 0; i < f->parameters->dim; i++) | |
| 752 { Argument *arg = (Argument *)f->parameters->data[i]; | |
| 753 | |
| 754 if (!arg->ident) | |
| 755 continue; // never used, so ignore | |
| 756 if (arg->type->ty == Ttuple) | |
| 757 { TypeTuple *t = (TypeTuple *)arg->type; | |
| 758 size_t dim = Argument::dim(t->arguments); | |
| 759 Objects *exps = new Objects(); | |
| 760 exps->setDim(dim); | |
| 761 for (size_t j = 0; j < dim; j++) | |
| 762 { Argument *narg = Argument::getNth(t->arguments, j); | |
| 763 assert(narg->ident); | |
| 764 VarDeclaration *v = sc2->search(0, narg->ident, NULL)->isVarDeclaration(); | |
| 765 assert(v); | |
| 766 Expression *e = new VarExp(0, v); | |
| 767 exps->data[j] = (void *)e; | |
| 768 } | |
| 769 assert(arg->ident); | |
| 770 TupleDeclaration *v = new TupleDeclaration(0, arg->ident, exps); | |
| 771 //printf("declaring tuple %s\n", v->toChars()); | |
| 772 v->isexp = 1; | |
| 773 if (!sc2->insert(v)) | |
| 774 error("parameter %s.%s is already defined", toChars(), v->toChars()); | |
| 775 localsymtab->insert(v); | |
| 776 v->parent = this; | |
| 777 } | |
| 778 } | |
| 779 } | |
| 780 | |
| 781 sc2->incontract++; | |
| 782 | |
| 783 if (frequire) | |
| 784 { | |
| 785 // BUG: need to error if accessing out parameters | |
| 786 // BUG: need to treat parameters as const | |
| 787 // BUG: need to disallow returns and throws | |
| 788 // BUG: verify that all in and ref parameters are read | |
| 789 frequire = frequire->semantic(sc2); | |
| 790 labtab = NULL; // so body can't refer to labels | |
| 791 } | |
| 792 | |
| 793 if (fensure || addPostInvariant()) | |
| 794 { | |
| 795 ScopeDsymbol *sym; | |
| 796 | |
| 797 sym = new ScopeDsymbol(); | |
| 798 sym->parent = sc2->scopesym; | |
| 799 sc2 = sc2->push(sym); | |
| 800 | |
| 801 assert(type->nextOf()); | |
| 802 if (type->nextOf()->ty == Tvoid) | |
| 803 { | |
| 804 if (outId) | |
| 805 error("void functions have no result"); | |
| 806 } | |
| 807 else | |
| 808 { | |
| 809 if (!outId) | |
| 810 outId = Id::result; // provide a default | |
| 811 } | |
| 812 | |
| 813 if (outId) | |
| 814 { // Declare result variable | |
| 815 VarDeclaration *v; | |
| 816 Loc loc = this->loc; | |
| 817 | |
| 818 if (fensure) | |
| 819 loc = fensure->loc; | |
| 820 | |
| 821 v = new VarDeclaration(loc, type->nextOf(), outId, NULL); | |
| 822 v->noauto = 1; | |
| 823 sc2->incontract--; | |
| 824 v->semantic(sc2); | |
| 825 sc2->incontract++; | |
| 826 if (!sc2->insert(v)) | |
| 827 error("out result %s is already defined", v->toChars()); | |
| 828 v->parent = this; | |
| 829 vresult = v; | |
| 830 | |
| 831 // vresult gets initialized with the function return value | |
| 832 // in ReturnStatement::semantic() | |
| 833 } | |
| 834 | |
| 835 // BUG: need to treat parameters as const | |
| 836 // BUG: need to disallow returns and throws | |
| 837 if (fensure) | |
| 838 { fensure = fensure->semantic(sc2); | |
| 839 labtab = NULL; // so body can't refer to labels | |
| 840 } | |
| 841 | |
| 842 if (!global.params.useOut) | |
| 843 { fensure = NULL; // discard | |
| 844 vresult = NULL; | |
| 845 } | |
| 846 | |
| 847 // Postcondition invariant | |
| 848 if (addPostInvariant()) | |
| 849 { | |
| 850 Expression *e = NULL; | |
| 851 if (isCtorDeclaration()) | |
| 852 { | |
| 853 // Call invariant directly only if it exists | |
| 854 InvariantDeclaration *inv = ad->inv; | |
| 855 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 856 | |
| 857 while (!inv && cd) | |
| 858 { | |
| 859 cd = cd->baseClass; | |
| 860 if (!cd) | |
| 861 break; | |
| 862 inv = cd->inv; | |
| 863 } | |
| 864 if (inv) | |
| 865 { | |
| 866 e = new DsymbolExp(0, inv); | |
| 867 e = new CallExp(0, e); | |
| 868 e = e->semantic(sc2); | |
| 869 } | |
| 870 } | |
| 871 else | |
| 872 { // Call invariant virtually | |
| 873 ThisExp *v = new ThisExp(0); | |
| 874 v->type = vthis->type; | |
| 875 e = new AssertExp(0, v); | |
| 876 } | |
| 877 if (e) | |
| 878 { | |
| 879 ExpStatement *s = new ExpStatement(0, e); | |
| 880 if (fensure) | |
| 881 fensure = new CompoundStatement(0, s, fensure); | |
| 882 else | |
| 883 fensure = s; | |
| 884 } | |
| 885 } | |
| 886 | |
| 887 if (fensure) | |
| 888 { returnLabel = new LabelDsymbol(Id::returnLabel); | |
| 889 LabelStatement *ls = new LabelStatement(0, Id::returnLabel, fensure); | |
| 890 ls->isReturnLabel = 1; | |
| 891 returnLabel->statement = ls; | |
| 892 } | |
| 893 sc2 = sc2->pop(); | |
| 894 } | |
| 895 | |
| 896 sc2->incontract--; | |
| 897 | |
| 898 if (fbody) | |
| 899 { ClassDeclaration *cd = isClassMember(); | |
| 900 | |
| 901 if (isCtorDeclaration() && cd) | |
| 902 { | |
| 903 for (int i = 0; i < cd->fields.dim; i++) | |
| 904 { VarDeclaration *v = (VarDeclaration *)cd->fields.data[i]; | |
| 905 | |
| 906 v->ctorinit = 0; | |
| 907 } | |
| 908 } | |
| 909 | |
| 910 if (inferRetType || f->retStyle() != RETstack) | |
| 911 nrvo_can = 0; | |
| 912 | |
| 913 fbody = fbody->semantic(sc2); | |
| 914 | |
| 915 if (inferRetType) | |
| 916 { // If no return type inferred yet, then infer a void | |
| 917 if (!type->nextOf()) | |
| 918 { | |
| 919 type->next = Type::tvoid; | |
| 920 type = type->semantic(loc, sc); | |
| 921 } | |
| 922 f = (TypeFunction *)type; | |
| 923 } | |
| 924 | |
| 925 int offend = fbody ? fbody->fallOffEnd() : TRUE; | |
| 926 | |
| 927 if (isStaticCtorDeclaration()) | |
| 928 { /* It's a static constructor. Ensure that all | |
| 929 * ctor consts were initialized. | |
| 930 */ | |
| 931 | |
| 932 ScopeDsymbol *ad = toParent()->isScopeDsymbol(); | |
| 933 assert(ad); | |
| 934 for (int i = 0; i < ad->members->dim; i++) | |
| 935 { Dsymbol *s = (Dsymbol *)ad->members->data[i]; | |
| 936 | |
| 937 s->checkCtorConstInit(); | |
| 938 } | |
| 939 } | |
| 940 | |
| 941 if (isCtorDeclaration() && cd) | |
| 942 { | |
| 943 //printf("callSuper = x%x\n", sc2->callSuper); | |
| 944 | |
| 945 // Verify that all the ctorinit fields got initialized | |
| 946 if (!(sc2->callSuper & CSXthis_ctor)) | |
| 947 { | |
| 948 for (int i = 0; i < cd->fields.dim; i++) | |
| 949 { VarDeclaration *v = (VarDeclaration *)cd->fields.data[i]; | |
| 950 | |
| 951 if (v->ctorinit == 0 && v->isCtorinit()) | |
| 952 error("missing initializer for const field %s", v->toChars()); | |
| 953 } | |
| 954 } | |
| 955 | |
| 956 if (!(sc2->callSuper & CSXany_ctor) && | |
| 957 cd->baseClass && cd->baseClass->ctor) | |
| 958 { | |
| 959 sc2->callSuper = 0; | |
| 960 | |
| 961 // Insert implicit super() at start of fbody | |
| 962 Expression *e1 = new SuperExp(0); | |
| 963 Expression *e = new CallExp(0, e1); | |
| 964 | |
| 965 unsigned errors = global.errors; | |
| 966 global.gag++; | |
| 967 e = e->semantic(sc2); | |
| 968 global.gag--; | |
| 969 if (errors != global.errors) | |
| 970 error("no match for implicit super() call in constructor"); | |
| 971 | |
| 972 Statement *s = new ExpStatement(0, e); | |
| 973 fbody = new CompoundStatement(0, s, fbody); | |
| 974 } | |
| 975 } | |
| 976 else if (fes) | |
| 977 { // For foreach(){} body, append a return 0; | |
| 978 Expression *e = new IntegerExp(0); | |
| 979 Statement *s = new ReturnStatement(0, e); | |
| 980 fbody = new CompoundStatement(0, fbody, s); | |
| 981 assert(!returnLabel); | |
| 982 } | |
| 983 else if (!hasReturnExp && type->nextOf()->ty != Tvoid) | |
| 984 error("expected to return a value of type %s", type->nextOf()->toChars()); | |
| 985 else if (!inlineAsm) | |
| 986 { | |
| 987 if (type->nextOf()->ty == Tvoid) | |
| 988 { | |
| 989 if (offend && isMain()) | |
| 990 { // Add a return 0; statement | |
| 991 Statement *s = new ReturnStatement(0, new IntegerExp(0)); | |
| 992 fbody = new CompoundStatement(0, fbody, s); | |
| 993 } | |
| 994 } | |
| 995 else | |
| 996 { | |
| 997 if (offend) | |
| 998 { Expression *e; | |
| 999 | |
| 1000 if (global.params.warnings) | |
| 1001 { fprintf(stdmsg, "warning - "); | |
| 1002 error("no return at end of function"); | |
| 1003 } | |
| 1004 | |
| 1005 if (global.params.useAssert && | |
| 1006 !global.params.useInline) | |
| 1007 { /* Add an assert(0, msg); where the missing return | |
| 1008 * should be. | |
| 1009 */ | |
| 1010 e = new AssertExp( | |
| 1011 endloc, | |
| 1012 new IntegerExp(0), | |
| 1013 new StringExp(loc, "missing return expression") | |
| 1014 ); | |
| 1015 } | |
| 1016 else | |
| 1017 e = new HaltExp(endloc); | |
| 1018 e = new CommaExp(0, e, type->nextOf()->defaultInit()); | |
| 1019 e = e->semantic(sc2); | |
| 1020 Statement *s = new ExpStatement(0, e); | |
| 1021 fbody = new CompoundStatement(0, fbody, s); | |
| 1022 } | |
| 1023 } | |
| 1024 } | |
| 1025 } | |
| 1026 | |
| 1027 { | |
| 1028 Statements *a = new Statements(); | |
| 1029 | |
| 1030 // Merge in initialization of 'out' parameters | |
| 1031 if (parameters) | |
| 1032 { for (size_t i = 0; i < parameters->dim; i++) | |
| 1033 { VarDeclaration *v; | |
| 1034 | |
| 1035 v = (VarDeclaration *)parameters->data[i]; | |
| 1036 if (v->storage_class & STCout) | |
| 1037 { | |
| 1038 assert(v->init); | |
| 1039 ExpInitializer *ie = v->init->isExpInitializer(); | |
| 1040 assert(ie); | |
| 1041 a->push(new ExpStatement(0, ie->exp)); | |
| 1042 } | |
| 1043 } | |
| 1044 } | |
| 1045 | |
| 1046 if (argptr) | |
| 1047 { // Initialize _argptr to point past non-variadic arg | |
| 1048 #if IN_GCC | |
| 1049 // Handled in FuncDeclaration::toObjFile | |
| 1050 v_argptr = argptr; | |
| 1051 v_argptr->init = new VoidInitializer(loc); | |
| 1052 #else | |
| 1053 Expression *e1; | |
| 1054 Expression *e; | |
| 1055 Type *t = argptr->type; | |
| 1056 VarDeclaration *p; | |
| 1057 unsigned offset; | |
| 1058 | |
| 1059 e1 = new VarExp(0, argptr); | |
| 1060 if (parameters && parameters->dim) | |
| 1061 p = (VarDeclaration *)parameters->data[parameters->dim - 1]; | |
| 1062 else | |
| 1063 p = v_arguments; // last parameter is _arguments[] | |
| 1064 offset = p->type->size(); | |
| 1065 offset = (offset + 3) & ~3; // assume stack aligns on 4 | |
| 1066 e = new SymOffExp(0, p, offset); | |
| 1067 e = new AssignExp(0, e1, e); | |
| 1068 e->type = t; | |
| 1069 a->push(new ExpStatement(0, e)); | |
| 1070 #endif | |
| 1071 } | |
| 1072 | |
| 1073 if (_arguments) | |
| 1074 { | |
| 1075 /* Advance to elements[] member of TypeInfo_Tuple with: | |
| 1076 * _arguments = v_arguments.elements; | |
| 1077 */ | |
| 1078 Expression *e = new VarExp(0, v_arguments); | |
| 1079 e = new DotIdExp(0, e, Id::elements); | |
| 1080 Expression *e1 = new VarExp(0, _arguments); | |
| 1081 e = new AssignExp(0, e1, e); | |
| 1082 e = e->semantic(sc); | |
| 1083 a->push(new ExpStatement(0, e)); | |
| 1084 } | |
| 1085 | |
| 1086 // Merge contracts together with body into one compound statement | |
| 1087 | |
| 1088 #ifdef _DH | |
| 1089 if (frequire && global.params.useIn) | |
| 1090 { frequire->incontract = 1; | |
| 1091 a->push(frequire); | |
| 1092 } | |
| 1093 #else | |
| 1094 if (frequire && global.params.useIn) | |
| 1095 a->push(frequire); | |
| 1096 #endif | |
| 1097 | |
| 1098 // Precondition invariant | |
| 1099 if (addPreInvariant()) | |
| 1100 { | |
| 1101 Expression *e = NULL; | |
| 1102 if (isDtorDeclaration()) | |
| 1103 { | |
| 1104 // Call invariant directly only if it exists | |
| 1105 InvariantDeclaration *inv = ad->inv; | |
| 1106 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 1107 | |
| 1108 while (!inv && cd) | |
| 1109 { | |
| 1110 cd = cd->baseClass; | |
| 1111 if (!cd) | |
| 1112 break; | |
| 1113 inv = cd->inv; | |
| 1114 } | |
| 1115 if (inv) | |
| 1116 { | |
| 1117 e = new DsymbolExp(0, inv); | |
| 1118 e = new CallExp(0, e); | |
| 1119 e = e->semantic(sc2); | |
| 1120 } | |
| 1121 } | |
| 1122 else | |
| 1123 { // Call invariant virtually | |
| 1124 ThisExp *v = new ThisExp(0); | |
| 1125 v->type = vthis->type; | |
| 1126 Expression *se = new StringExp(0, "null this"); | |
| 1127 se = se->semantic(sc); | |
| 1128 se->type = Type::tchar->arrayOf(); | |
| 1129 e = new AssertExp(loc, v, se); | |
| 1130 } | |
| 1131 if (e) | |
| 1132 { | |
| 1133 ExpStatement *s = new ExpStatement(0, e); | |
| 1134 a->push(s); | |
| 1135 } | |
| 1136 } | |
| 1137 | |
| 1138 if (fbody) | |
| 1139 a->push(fbody); | |
| 1140 | |
| 1141 if (fensure) | |
| 1142 { | |
| 1143 a->push(returnLabel->statement); | |
| 1144 | |
| 1145 if (type->nextOf()->ty != Tvoid) | |
| 1146 { | |
| 1147 // Create: return vresult; | |
| 1148 assert(vresult); | |
| 1149 Expression *e = new VarExp(0, vresult); | |
| 1150 if (tintro) | |
| 1151 { e = e->implicitCastTo(sc, tintro->nextOf()); | |
| 1152 e = e->semantic(sc); | |
| 1153 } | |
| 1154 ReturnStatement *s = new ReturnStatement(0, e); | |
| 1155 a->push(s); | |
| 1156 } | |
| 1157 } | |
| 1158 | |
| 1159 fbody = new CompoundStatement(0, a); | |
| 1160 } | |
| 1161 | |
| 1162 sc2->callSuper = 0; | |
| 1163 sc2->pop(); | |
| 1164 } | |
| 1165 semanticRun = 2; | |
| 1166 } | |
| 1167 | |
| 1168 void FuncDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1169 { | |
| 1170 //printf("FuncDeclaration::toCBuffer() '%s'\n", toChars()); | |
| 1171 | |
| 1172 type->toCBuffer(buf, ident, hgs); | |
| 1173 bodyToCBuffer(buf, hgs); | |
| 1174 } | |
| 1175 | |
| 1176 | |
| 1177 void FuncDeclaration::bodyToCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1178 { | |
| 1179 if (fbody && | |
| 1180 (!hgs->hdrgen || hgs->tpltMember || canInline(1,1)) | |
| 1181 ) | |
| 1182 { buf->writenl(); | |
| 1183 | |
| 1184 // in{} | |
| 1185 if (frequire) | |
| 1186 { buf->writestring("in"); | |
| 1187 buf->writenl(); | |
| 1188 frequire->toCBuffer(buf, hgs); | |
| 1189 } | |
| 1190 | |
| 1191 // out{} | |
| 1192 if (fensure) | |
| 1193 { buf->writestring("out"); | |
| 1194 if (outId) | |
| 1195 { buf->writebyte('('); | |
| 1196 buf->writestring(outId->toChars()); | |
| 1197 buf->writebyte(')'); | |
| 1198 } | |
| 1199 buf->writenl(); | |
| 1200 fensure->toCBuffer(buf, hgs); | |
| 1201 } | |
| 1202 | |
| 1203 if (frequire || fensure) | |
| 1204 { buf->writestring("body"); | |
| 1205 buf->writenl(); | |
| 1206 } | |
| 1207 | |
| 1208 buf->writebyte('{'); | |
| 1209 buf->writenl(); | |
| 1210 fbody->toCBuffer(buf, hgs); | |
| 1211 buf->writebyte('}'); | |
| 1212 buf->writenl(); | |
| 1213 } | |
| 1214 else | |
| 1215 { buf->writeByte(';'); | |
| 1216 buf->writenl(); | |
| 1217 } | |
| 1218 } | |
| 1219 | |
| 1220 /**************************************************** | |
| 1221 * Determine if 'this' overrides fd. | |
| 1222 * Return !=0 if it does. | |
| 1223 */ | |
| 1224 | |
| 1225 int FuncDeclaration::overrides(FuncDeclaration *fd) | |
| 1226 { int result = 0; | |
| 1227 | |
| 1228 if (fd->ident == ident) | |
| 1229 { | |
| 1230 int cov = type->covariant(fd->type); | |
| 1231 if (cov) | |
| 1232 { ClassDeclaration *cd1 = toParent()->isClassDeclaration(); | |
| 1233 ClassDeclaration *cd2 = fd->toParent()->isClassDeclaration(); | |
| 1234 | |
| 1235 if (cd1 && cd2 && cd2->isBaseOf(cd1, NULL)) | |
| 1236 result = 1; | |
| 1237 } | |
| 1238 } | |
| 1239 return result; | |
| 1240 } | |
| 1241 | |
| 1242 /**************************************************** | |
| 1243 * Overload this FuncDeclaration with the new one f. | |
| 1244 * Return !=0 if successful; i.e. no conflict. | |
| 1245 */ | |
| 1246 | |
| 1247 int FuncDeclaration::overloadInsert(Dsymbol *s) | |
| 1248 { | |
| 1249 FuncDeclaration *f; | |
| 1250 AliasDeclaration *a; | |
| 1251 | |
| 1252 //printf("FuncDeclaration::overloadInsert(%s)\n", s->toChars()); | |
| 1253 a = s->isAliasDeclaration(); | |
| 1254 if (a) | |
| 1255 { | |
| 1256 if (overnext) | |
| 1257 return overnext->overloadInsert(a); | |
| 1258 if (!a->aliassym && a->type->ty != Tident && a->type->ty != Tinstance) | |
| 1259 { | |
| 1260 //printf("\ta = '%s'\n", a->type->toChars()); | |
| 1261 return FALSE; | |
| 1262 } | |
| 1263 overnext = a; | |
| 1264 //printf("\ttrue: no conflict\n"); | |
| 1265 return TRUE; | |
| 1266 } | |
| 1267 f = s->isFuncDeclaration(); | |
| 1268 if (!f) | |
| 1269 return FALSE; | |
| 1270 | |
| 1271 if (type && f->type && // can be NULL for overloaded constructors | |
| 1272 f->type->covariant(type) && | |
| 1273 !isFuncAliasDeclaration()) | |
| 1274 { | |
| 1275 //printf("\tfalse: conflict %s\n", kind()); | |
| 1276 return FALSE; | |
| 1277 } | |
| 1278 | |
| 1279 if (overnext) | |
| 1280 return overnext->overloadInsert(f); | |
| 1281 overnext = f; | |
| 1282 //printf("\ttrue: no conflict\n"); | |
| 1283 return TRUE; | |
| 1284 } | |
| 1285 | |
| 1286 /******************************************** | |
| 1287 * Find function in overload list that exactly matches t. | |
| 1288 */ | |
| 1289 | |
| 1290 /*************************************************** | |
| 1291 * Visit each overloaded function in turn, and call | |
| 1292 * (*fp)(param, f) on it. | |
| 1293 * Exit when no more, or (*fp)(param, f) returns 1. | |
| 1294 * Returns: | |
| 1295 * 0 continue | |
| 1296 * 1 done | |
| 1297 */ | |
| 1298 | |
| 1299 int overloadApply(FuncDeclaration *fstart, | |
| 1300 int (*fp)(void *, FuncDeclaration *), | |
| 1301 void *param) | |
| 1302 { | |
| 1303 FuncDeclaration *f; | |
| 1304 Declaration *d; | |
| 1305 Declaration *next; | |
| 1306 | |
| 1307 for (d = fstart; d; d = next) | |
| 1308 { FuncAliasDeclaration *fa = d->isFuncAliasDeclaration(); | |
| 1309 | |
| 1310 if (fa) | |
| 1311 { | |
| 1312 if (overloadApply(fa->funcalias, fp, param)) | |
| 1313 return 1; | |
| 1314 next = fa->overnext; | |
| 1315 } | |
| 1316 else | |
| 1317 { | |
| 1318 AliasDeclaration *a = d->isAliasDeclaration(); | |
| 1319 | |
| 1320 if (a) | |
| 1321 { | |
| 1322 Dsymbol *s = a->toAlias(); | |
| 1323 next = s->isDeclaration(); | |
| 1324 if (next == a) | |
| 1325 break; | |
| 1326 if (next == fstart) | |
| 1327 break; | |
| 1328 } | |
| 1329 else | |
| 1330 { | |
| 1331 f = d->isFuncDeclaration(); | |
| 1332 if (!f) | |
| 1333 { d->error("is aliased to a function"); | |
| 1334 break; // BUG: should print error message? | |
| 1335 } | |
| 1336 if ((*fp)(param, f)) | |
| 1337 return 1; | |
| 1338 | |
| 1339 next = f->overnext; | |
| 1340 } | |
| 1341 } | |
| 1342 } | |
| 1343 return 0; | |
| 1344 } | |
| 1345 | |
| 1346 /******************************************** | |
| 1347 * Find function in overload list that exactly matches t. | |
| 1348 */ | |
| 1349 | |
| 1350 struct Param1 | |
| 1351 { | |
| 1352 Type *t; // type to match | |
| 1353 FuncDeclaration *f; // return value | |
| 1354 }; | |
| 1355 | |
| 1356 int fp1(void *param, FuncDeclaration *f) | |
| 1357 { Param1 *p = (Param1 *)param; | |
| 1358 Type *t = p->t; | |
| 1359 | |
| 1360 if (t->equals(f->type)) | |
| 1361 { p->f = f; | |
| 1362 return 1; | |
| 1363 } | |
| 1364 | |
| 1365 #if V2 | |
| 1366 /* Allow covariant matches, if it's just a const conversion | |
| 1367 * of the return type | |
| 1368 */ | |
| 1369 if (t->ty == Tfunction) | |
| 1370 { TypeFunction *tf = (TypeFunction *)f->type; | |
| 1371 if (tf->covariant(t) == 1 && | |
| 1372 tf->nextOf()->implicitConvTo(t->nextOf()) >= MATCHconst) | |
| 1373 { | |
| 1374 p->f = f; | |
| 1375 return 1; | |
| 1376 } | |
| 1377 } | |
| 1378 #endif | |
| 1379 return 0; | |
| 1380 } | |
| 1381 | |
| 1382 FuncDeclaration *FuncDeclaration::overloadExactMatch(Type *t) | |
| 1383 { | |
| 1384 Param1 p; | |
| 1385 p.t = t; | |
| 1386 p.f = NULL; | |
| 1387 overloadApply(this, &fp1, &p); | |
| 1388 return p.f; | |
| 1389 } | |
| 1390 | |
| 1391 #if 0 | |
| 1392 FuncDeclaration *FuncDeclaration::overloadExactMatch(Type *t) | |
| 1393 { | |
| 1394 FuncDeclaration *f; | |
| 1395 Declaration *d; | |
| 1396 Declaration *next; | |
| 1397 | |
| 1398 for (d = this; d; d = next) | |
| 1399 { FuncAliasDeclaration *fa = d->isFuncAliasDeclaration(); | |
| 1400 | |
| 1401 if (fa) | |
| 1402 { | |
| 1403 FuncDeclaration *f2 = fa->funcalias->overloadExactMatch(t); | |
| 1404 if (f2) | |
| 1405 return f2; | |
| 1406 next = fa->overnext; | |
| 1407 } | |
| 1408 else | |
| 1409 { | |
| 1410 AliasDeclaration *a = d->isAliasDeclaration(); | |
| 1411 | |
| 1412 if (a) | |
| 1413 { | |
| 1414 Dsymbol *s = a->toAlias(); | |
| 1415 next = s->isDeclaration(); | |
| 1416 if (next == a) | |
| 1417 break; | |
| 1418 } | |
| 1419 else | |
| 1420 { | |
| 1421 f = d->isFuncDeclaration(); | |
| 1422 if (!f) | |
| 1423 break; // BUG: should print error message? | |
| 1424 if (t->equals(d->type)) | |
| 1425 return f; | |
| 1426 next = f->overnext; | |
| 1427 } | |
| 1428 } | |
| 1429 } | |
| 1430 return NULL; | |
| 1431 } | |
| 1432 #endif | |
| 1433 | |
| 1434 /******************************************** | |
| 1435 * Decide which function matches the arguments best. | |
| 1436 */ | |
| 1437 | |
| 1438 struct Param2 | |
| 1439 { | |
| 1440 Match *m; | |
| 1441 Expressions *arguments; | |
| 1442 }; | |
| 1443 | |
| 1444 int fp2(void *param, FuncDeclaration *f) | |
| 1445 { Param2 *p = (Param2 *)param; | |
| 1446 Match *m = p->m; | |
| 1447 Expressions *arguments = p->arguments; | |
| 1448 MATCH match; | |
| 1449 | |
| 1450 if (f != m->lastf) // skip duplicates | |
| 1451 { | |
| 1452 TypeFunction *tf; | |
| 1453 | |
| 1454 m->anyf = f; | |
| 1455 tf = (TypeFunction *)f->type; | |
| 1456 match = (MATCH) tf->callMatch(arguments); | |
| 1457 //printf("match = %d\n", match); | |
| 1458 if (match != MATCHnomatch) | |
| 1459 { | |
| 1460 if (match > m->last) | |
| 1461 goto LfIsBetter; | |
| 1462 | |
| 1463 if (match < m->last) | |
| 1464 goto LlastIsBetter; | |
| 1465 | |
| 1466 /* See if one of the matches overrides the other. | |
| 1467 */ | |
| 1468 if (m->lastf->overrides(f)) | |
| 1469 goto LlastIsBetter; | |
| 1470 else if (f->overrides(m->lastf)) | |
| 1471 goto LfIsBetter; | |
| 1472 | |
| 1473 Lambiguous: | |
| 1474 m->nextf = f; | |
| 1475 m->count++; | |
| 1476 return 0; | |
| 1477 | |
| 1478 LfIsBetter: | |
| 1479 m->last = match; | |
| 1480 m->lastf = f; | |
| 1481 m->count = 1; | |
| 1482 return 0; | |
| 1483 | |
| 1484 LlastIsBetter: | |
| 1485 return 0; | |
| 1486 } | |
| 1487 } | |
| 1488 return 0; | |
| 1489 } | |
| 1490 | |
| 1491 | |
| 1492 void overloadResolveX(Match *m, FuncDeclaration *fstart, Expressions *arguments) | |
| 1493 { | |
| 1494 Param2 p; | |
| 1495 p.m = m; | |
| 1496 p.arguments = arguments; | |
| 1497 overloadApply(fstart, &fp2, &p); | |
| 1498 } | |
| 1499 | |
| 1500 #if 0 | |
| 1501 // Recursive helper function | |
| 1502 | |
| 1503 void overloadResolveX(Match *m, FuncDeclaration *fstart, Expressions *arguments) | |
| 1504 { | |
| 1505 MATCH match; | |
| 1506 Declaration *d; | |
| 1507 Declaration *next; | |
| 1508 | |
| 1509 for (d = fstart; d; d = next) | |
| 1510 { | |
| 1511 FuncDeclaration *f; | |
| 1512 FuncAliasDeclaration *fa; | |
| 1513 AliasDeclaration *a; | |
| 1514 | |
| 1515 fa = d->isFuncAliasDeclaration(); | |
| 1516 if (fa) | |
| 1517 { | |
| 1518 overloadResolveX(m, fa->funcalias, arguments); | |
| 1519 next = fa->overnext; | |
| 1520 } | |
| 1521 else if ((f = d->isFuncDeclaration()) != NULL) | |
| 1522 { | |
| 1523 next = f->overnext; | |
| 1524 if (f == m->lastf) | |
| 1525 continue; // skip duplicates | |
| 1526 else | |
| 1527 { | |
| 1528 TypeFunction *tf; | |
| 1529 | |
| 1530 m->anyf = f; | |
| 1531 tf = (TypeFunction *)f->type; | |
| 1532 match = (MATCH) tf->callMatch(arguments); | |
| 1533 //printf("match = %d\n", match); | |
| 1534 if (match != MATCHnomatch) | |
| 1535 { | |
| 1536 if (match > m->last) | |
| 1537 goto LfIsBetter; | |
| 1538 | |
| 1539 if (match < m->last) | |
| 1540 goto LlastIsBetter; | |
| 1541 | |
| 1542 /* See if one of the matches overrides the other. | |
| 1543 */ | |
| 1544 if (m->lastf->overrides(f)) | |
| 1545 goto LlastIsBetter; | |
| 1546 else if (f->overrides(m->lastf)) | |
| 1547 goto LfIsBetter; | |
| 1548 | |
| 1549 Lambiguous: | |
| 1550 m->nextf = f; | |
| 1551 m->count++; | |
| 1552 continue; | |
| 1553 | |
| 1554 LfIsBetter: | |
| 1555 m->last = match; | |
| 1556 m->lastf = f; | |
| 1557 m->count = 1; | |
| 1558 continue; | |
| 1559 | |
| 1560 LlastIsBetter: | |
| 1561 continue; | |
| 1562 } | |
| 1563 } | |
| 1564 } | |
| 1565 else if ((a = d->isAliasDeclaration()) != NULL) | |
| 1566 { | |
| 1567 Dsymbol *s = a->toAlias(); | |
| 1568 next = s->isDeclaration(); | |
| 1569 if (next == a) | |
| 1570 break; | |
| 1571 if (next == fstart) | |
| 1572 break; | |
| 1573 } | |
| 1574 else | |
| 1575 { d->error("is aliased to a function"); | |
| 1576 break; | |
| 1577 } | |
| 1578 } | |
| 1579 } | |
| 1580 #endif | |
| 1581 | |
| 1582 FuncDeclaration *FuncDeclaration::overloadResolve(Loc loc, Expressions *arguments) | |
| 1583 { | |
| 1584 TypeFunction *tf; | |
| 1585 Match m; | |
| 1586 | |
| 1587 #if 0 | |
| 1588 printf("FuncDeclaration::overloadResolve('%s')\n", toChars()); | |
| 1589 if (arguments) | |
| 1590 { int i; | |
| 1591 | |
| 1592 for (i = 0; i < arguments->dim; i++) | |
| 1593 { Expression *arg; | |
| 1594 | |
| 1595 arg = (Expression *)arguments->data[i]; | |
| 1596 assert(arg->type); | |
| 1597 printf("\t%s: ", arg->toChars()); | |
| 1598 arg->type->print(); | |
| 1599 } | |
| 1600 } | |
| 1601 #endif | |
| 1602 | |
| 1603 memset(&m, 0, sizeof(m)); | |
| 1604 m.last = MATCHnomatch; | |
| 1605 overloadResolveX(&m, this, arguments); | |
| 1606 | |
| 1607 if (m.count == 1) // exactly one match | |
| 1608 { | |
| 1609 return m.lastf; | |
| 1610 } | |
| 1611 else | |
| 1612 { | |
| 1613 OutBuffer buf; | |
| 1614 | |
| 1615 if (arguments) | |
| 1616 { | |
| 1617 HdrGenState hgs; | |
| 1618 | |
| 1619 argExpTypesToCBuffer(&buf, arguments, &hgs); | |
| 1620 } | |
| 1621 | |
| 1622 if (m.last == MATCHnomatch) | |
| 1623 { | |
| 1624 tf = (TypeFunction *)type; | |
| 1625 | |
| 1626 //printf("tf = %s, args = %s\n", tf->deco, ((Expression *)arguments->data[0])->type->deco); | |
| 1627 error(loc, "%s does not match parameter types (%s)", | |
| 1628 Argument::argsTypesToChars(tf->parameters, tf->varargs), | |
| 1629 buf.toChars()); | |
| 1630 return m.anyf; // as long as it's not a FuncAliasDeclaration | |
| 1631 } | |
| 1632 else | |
| 1633 { | |
| 1634 #if 1 | |
| 1635 TypeFunction *t1 = (TypeFunction *)m.lastf->type; | |
| 1636 TypeFunction *t2 = (TypeFunction *)m.nextf->type; | |
| 1637 | |
| 1638 error(loc, "called with argument types:\n\t(%s)\nmatches both:\n\t%s%s\nand:\n\t%s%s", | |
| 1639 buf.toChars(), | |
| 1640 m.lastf->toPrettyChars(), Argument::argsTypesToChars(t1->parameters, t1->varargs), | |
| 1641 m.nextf->toPrettyChars(), Argument::argsTypesToChars(t2->parameters, t2->varargs)); | |
| 1642 #else | |
| 1643 error(loc, "overloads %s and %s both match argument list for %s", | |
| 1644 m.lastf->type->toChars(), | |
| 1645 m.nextf->type->toChars(), | |
| 1646 m.lastf->toChars()); | |
| 1647 #endif | |
| 1648 return m.lastf; | |
| 1649 } | |
| 1650 } | |
| 1651 } | |
| 1652 | |
| 1653 /******************************** | |
| 1654 * Labels are in a separate scope, one per function. | |
| 1655 */ | |
| 1656 | |
| 1657 LabelDsymbol *FuncDeclaration::searchLabel(Identifier *ident) | |
| 1658 { Dsymbol *s; | |
| 1659 | |
| 1660 if (!labtab) | |
| 1661 labtab = new DsymbolTable(); // guess we need one | |
| 1662 | |
| 1663 s = labtab->lookup(ident); | |
| 1664 if (!s) | |
| 1665 { | |
| 1666 s = new LabelDsymbol(ident); | |
| 1667 labtab->insert(s); | |
| 1668 } | |
| 1669 return (LabelDsymbol *)s; | |
| 1670 } | |
| 1671 | |
| 1672 AggregateDeclaration *FuncDeclaration::isThis() | |
| 1673 { AggregateDeclaration *ad; | |
| 1674 | |
| 1675 //printf("+FuncDeclaration::isThis() '%s'\n", toChars()); | |
| 1676 ad = NULL; | |
| 1677 if ((storage_class & STCstatic) == 0) | |
| 1678 { | |
| 1679 ad = isMember2(); | |
| 1680 } | |
| 1681 //printf("-FuncDeclaration::isThis() %p\n", ad); | |
| 1682 return ad; | |
| 1683 } | |
| 1684 | |
| 1685 AggregateDeclaration *FuncDeclaration::isMember2() | |
| 1686 { AggregateDeclaration *ad; | |
| 1687 | |
| 1688 //printf("+FuncDeclaration::isMember2() '%s'\n", toChars()); | |
| 1689 ad = NULL; | |
| 1690 for (Dsymbol *s = this; s; s = s->parent) | |
| 1691 { | |
| 1692 //printf("\ts = '%s', parent = '%s', kind = %s\n", s->toChars(), s->parent->toChars(), s->parent->kind()); | |
| 1693 ad = s->isMember(); | |
| 1694 if (ad) | |
| 1695 { //printf("test4\n"); | |
| 1696 break; | |
| 1697 } | |
| 1698 if (!s->parent || | |
| 1699 (!s->parent->isTemplateInstance())) | |
| 1700 { //printf("test5\n"); | |
| 1701 break; | |
| 1702 } | |
| 1703 } | |
| 1704 //printf("-FuncDeclaration::isMember2() %p\n", ad); | |
| 1705 return ad; | |
| 1706 } | |
| 1707 | |
| 1708 /***************************************** | |
| 1709 * Determine lexical level difference from 'this' to nested function 'fd'. | |
| 1710 * Error if this cannot call fd. | |
| 1711 * Returns: | |
| 1712 * 0 same level | |
| 1713 * -1 increase nesting by 1 (fd is nested within 'this') | |
| 1714 * >0 decrease nesting by number | |
| 1715 */ | |
| 1716 | |
| 1717 int FuncDeclaration::getLevel(Loc loc, FuncDeclaration *fd) | |
| 1718 { int level; | |
| 1719 Dsymbol *s; | |
| 1720 Dsymbol *fdparent; | |
| 1721 | |
| 1722 //printf("FuncDeclaration::getLevel(fd = '%s')\n", fd->toChars()); | |
| 1723 fdparent = fd->toParent2(); | |
| 1724 if (fdparent == this) | |
| 1725 return -1; | |
| 1726 s = this; | |
| 1727 level = 0; | |
| 1728 while (fd != s && fdparent != s->toParent2()) | |
| 1729 { | |
| 1730 //printf("\ts = '%s'\n", s->toChars()); | |
| 1731 FuncDeclaration *thisfd = s->isFuncDeclaration(); | |
| 1732 if (thisfd) | |
| 1733 { if (!thisfd->isNested() && !thisfd->vthis) | |
| 1734 goto Lerr; | |
| 1735 } | |
| 1736 else | |
| 1737 { | |
| 1738 ClassDeclaration *thiscd = s->isClassDeclaration(); | |
| 1739 if (thiscd) | |
| 1740 { if (!thiscd->isNested()) | |
| 1741 goto Lerr; | |
| 1742 } | |
| 1743 else | |
| 1744 goto Lerr; | |
| 1745 } | |
| 1746 | |
| 1747 s = s->toParent2(); | |
| 1748 assert(s); | |
| 1749 level++; | |
| 1750 } | |
| 1751 return level; | |
| 1752 | |
| 1753 Lerr: | |
| 1754 error(loc, "cannot access frame of function %s", fd->toChars()); | |
| 1755 return 1; | |
| 1756 } | |
| 1757 | |
| 1758 void FuncDeclaration::appendExp(Expression *e) | |
| 1759 { Statement *s; | |
| 1760 | |
| 1761 s = new ExpStatement(0, e); | |
| 1762 appendState(s); | |
| 1763 } | |
| 1764 | |
| 1765 void FuncDeclaration::appendState(Statement *s) | |
| 1766 { CompoundStatement *cs; | |
| 1767 | |
| 1768 if (!fbody) | |
| 1769 { Statements *a; | |
| 1770 | |
| 1771 a = new Statements(); | |
| 1772 fbody = new CompoundStatement(0, a); | |
| 1773 } | |
| 1774 cs = fbody->isCompoundStatement(); | |
| 1775 cs->statements->push(s); | |
| 1776 } | |
| 1777 | |
| 1778 | |
| 1779 int FuncDeclaration::isMain() | |
| 1780 { | |
| 1781 return ident == Id::main && | |
| 1782 linkage != LINKc && !isMember() && !isNested(); | |
| 1783 } | |
| 1784 | |
| 1785 int FuncDeclaration::isWinMain() | |
| 1786 { | |
| 1787 return ident == Id::WinMain && | |
| 1788 linkage != LINKc && !isMember(); | |
| 1789 } | |
| 1790 | |
| 1791 int FuncDeclaration::isDllMain() | |
| 1792 { | |
| 1793 return ident == Id::DllMain && | |
| 1794 linkage != LINKc && !isMember(); | |
| 1795 } | |
| 1796 | |
| 1797 int FuncDeclaration::isExport() | |
| 1798 { | |
| 1799 return protection == PROTexport; | |
| 1800 } | |
| 1801 | |
| 1802 int FuncDeclaration::isImportedSymbol() | |
| 1803 { | |
| 1804 //printf("isImportedSymbol()\n"); | |
| 1805 //printf("protection = %d\n", protection); | |
| 1806 return (protection == PROTexport) && !fbody; | |
| 1807 } | |
| 1808 | |
| 1809 // Determine if function goes into virtual function pointer table | |
| 1810 | |
| 1811 int FuncDeclaration::isVirtual() | |
| 1812 { | |
| 1813 #if 0 | |
| 1814 printf("FuncDeclaration::isVirtual(%s)\n", toChars()); | |
| 1815 printf("%p %d %d %d %d\n", isMember(), isStatic(), protection == PROTprivate, isCtorDeclaration(), linkage != LINKd); | |
| 1816 printf("result is %d\n", | |
| 1817 isMember() && | |
| 1818 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && | |
| 1819 toParent()->isClassDeclaration()); | |
| 1820 #endif | |
| 1821 return isMember() && | |
| 1822 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && | |
| 1823 toParent()->isClassDeclaration(); | |
| 1824 } | |
| 1825 | |
| 1826 int FuncDeclaration::isAbstract() | |
| 1827 { | |
| 1828 return storage_class & STCabstract; | |
| 1829 } | |
| 1830 | |
| 1831 int FuncDeclaration::isCodeseg() | |
| 1832 { | |
| 1833 return TRUE; // functions are always in the code segment | |
| 1834 } | |
| 1835 | |
| 1836 // Determine if function needs | |
| 1837 // a static frame pointer to its lexically enclosing function | |
| 1838 | |
| 1839 int FuncDeclaration::isNested() | |
| 1840 { | |
| 1841 //if (!toParent()) | |
| 1842 //printf("FuncDeclaration::isNested('%s') parent=%p\n", toChars(), parent); | |
| 1843 //printf("\ttoParent() = '%s'\n", toParent()->toChars()); | |
| 1844 return ((storage_class & STCstatic) == 0) && | |
| 1845 (toParent2()->isFuncDeclaration() != NULL); | |
| 1846 } | |
| 1847 | |
| 1848 int FuncDeclaration::needThis() | |
| 1849 { | |
| 1850 //printf("FuncDeclaration::needThis() '%s'\n", toChars()); | |
| 1851 int i = isThis() != NULL; | |
| 1852 //printf("\t%d\n", i); | |
| 1853 if (!i && isFuncAliasDeclaration()) | |
| 1854 i = ((FuncAliasDeclaration *)this)->funcalias->needThis(); | |
| 1855 return i; | |
| 1856 } | |
| 1857 | |
| 1858 int FuncDeclaration::addPreInvariant() | |
| 1859 { | |
| 1860 AggregateDeclaration *ad = isThis(); | |
| 1861 return (ad && | |
| 1862 //ad->isClassDeclaration() && | |
| 1863 global.params.useInvariants && | |
| 1864 (protection == PROTpublic || protection == PROTexport) && | |
| 1865 !naked); | |
| 1866 } | |
| 1867 | |
| 1868 int FuncDeclaration::addPostInvariant() | |
| 1869 { | |
| 1870 AggregateDeclaration *ad = isThis(); | |
| 1871 return (ad && | |
| 1872 ad->inv && | |
| 1873 //ad->isClassDeclaration() && | |
| 1874 global.params.useInvariants && | |
| 1875 (protection == PROTpublic || protection == PROTexport) && | |
| 1876 !naked); | |
| 1877 } | |
| 1878 | |
| 1879 /********************************** | |
| 1880 * Generate a FuncDeclaration for a runtime library function. | |
| 1881 */ | |
| 1882 | |
| 1883 FuncDeclaration *FuncDeclaration::genCfunc(Type *treturn, char *name) | |
| 1884 { | |
| 1885 return genCfunc(treturn, Lexer::idPool(name)); | |
| 1886 } | |
| 1887 | |
| 1888 FuncDeclaration *FuncDeclaration::genCfunc(Type *treturn, Identifier *id) | |
| 1889 { | |
| 1890 FuncDeclaration *fd; | |
| 1891 TypeFunction *tf; | |
| 1892 Dsymbol *s; | |
| 1893 static DsymbolTable *st = NULL; | |
| 1894 | |
| 1895 //printf("genCfunc(name = '%s')\n", id->toChars()); | |
| 1896 //printf("treturn\n\t"); treturn->print(); | |
| 1897 | |
| 1898 // See if already in table | |
| 1899 if (!st) | |
| 1900 st = new DsymbolTable(); | |
| 1901 s = st->lookup(id); | |
| 1902 if (s) | |
| 1903 { | |
| 1904 fd = s->isFuncDeclaration(); | |
| 1905 assert(fd); | |
| 1906 assert(fd->type->nextOf()->equals(treturn)); | |
| 1907 } | |
| 1908 else | |
| 1909 { | |
| 1910 tf = new TypeFunction(NULL, treturn, 0, LINKc); | |
| 1911 fd = new FuncDeclaration(0, 0, id, STCstatic, tf); | |
| 1912 fd->protection = PROTpublic; | |
| 1913 fd->linkage = LINKc; | |
| 1914 | |
| 1915 st->insert(fd); | |
| 1916 } | |
| 1917 return fd; | |
| 1918 } | |
| 1919 | |
| 1920 char *FuncDeclaration::kind() | |
| 1921 { | |
| 1922 return "function"; | |
| 1923 } | |
| 1924 | |
| 1925 /****************************** FuncAliasDeclaration ************************/ | |
| 1926 | |
| 1927 // Used as a way to import a set of functions from another scope into this one. | |
| 1928 | |
| 1929 FuncAliasDeclaration::FuncAliasDeclaration(FuncDeclaration *funcalias) | |
| 1930 : FuncDeclaration(funcalias->loc, funcalias->endloc, funcalias->ident, | |
| 1931 (enum STC)funcalias->storage_class, funcalias->type) | |
| 1932 { | |
| 1933 assert(funcalias != this); | |
| 1934 this->funcalias = funcalias; | |
| 1935 } | |
| 1936 | |
| 1937 char *FuncAliasDeclaration::kind() | |
| 1938 { | |
| 1939 return "function alias"; | |
| 1940 } | |
| 1941 | |
| 1942 | |
| 1943 /****************************** FuncLiteralDeclaration ************************/ | |
| 1944 | |
| 1945 FuncLiteralDeclaration::FuncLiteralDeclaration(Loc loc, Loc endloc, Type *type, | |
| 1946 enum TOK tok, ForeachStatement *fes) | |
| 1947 : FuncDeclaration(loc, endloc, NULL, STCundefined, type) | |
| 1948 { | |
| 1949 char *id; | |
| 1950 | |
| 1951 if (fes) | |
| 1952 id = "__foreachbody"; | |
| 1953 else if (tok == TOKdelegate) | |
| 1954 id = "__dgliteral"; | |
| 1955 else | |
| 1956 id = "__funcliteral"; | |
| 1957 this->ident = Identifier::generateId(id); | |
| 1958 this->tok = tok; | |
| 1959 this->fes = fes; | |
| 1960 //printf("FuncLiteralDeclaration() id = '%s', type = '%s'\n", this->ident->toChars(), type->toChars()); | |
| 1961 } | |
| 1962 | |
| 1963 Dsymbol *FuncLiteralDeclaration::syntaxCopy(Dsymbol *s) | |
| 1964 { | |
| 1965 FuncLiteralDeclaration *f; | |
| 1966 | |
| 1967 //printf("FuncLiteralDeclaration::syntaxCopy('%s')\n", toChars()); | |
| 1968 if (s) | |
| 1969 f = (FuncLiteralDeclaration *)s; | |
| 1970 else | |
| 1971 f = new FuncLiteralDeclaration(loc, endloc, type->syntaxCopy(), tok, fes); | |
| 1972 FuncDeclaration::syntaxCopy(f); | |
| 1973 return f; | |
| 1974 } | |
| 1975 | |
| 1976 int FuncLiteralDeclaration::isNested() | |
| 1977 { | |
| 1978 //printf("FuncLiteralDeclaration::isNested() '%s'\n", toChars()); | |
| 1979 return (tok == TOKdelegate); | |
| 1980 } | |
| 1981 | |
| 1982 char *FuncLiteralDeclaration::kind() | |
| 1983 { | |
| 1984 // GCC requires the (char*) casts | |
| 1985 return (tok == TOKdelegate) ? (char*)"delegate" : (char*)"function"; | |
| 1986 } | |
| 1987 | |
| 1988 void FuncLiteralDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1989 { | |
| 1990 static Identifier *idfunc; | |
| 1991 static Identifier *iddel; | |
| 1992 | |
| 1993 if (!idfunc) | |
| 1994 idfunc = new Identifier("function", 0); | |
| 1995 if (!iddel) | |
| 1996 iddel = new Identifier("delegate", 0); | |
| 1997 | |
| 1998 type->toCBuffer(buf, ((tok == TOKdelegate) ? iddel : idfunc), hgs); | |
| 1999 bodyToCBuffer(buf, hgs); | |
| 2000 } | |
| 2001 | |
| 2002 | |
| 2003 /********************************* CtorDeclaration ****************************/ | |
| 2004 | |
| 2005 CtorDeclaration::CtorDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs) | |
| 2006 : FuncDeclaration(loc, endloc, Id::ctor, STCundefined, NULL) | |
| 2007 { | |
| 2008 this->arguments = arguments; | |
| 2009 this->varargs = varargs; | |
| 2010 //printf("CtorDeclaration() %s\n", toChars()); | |
| 2011 } | |
| 2012 | |
| 2013 Dsymbol *CtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2014 { | |
| 2015 CtorDeclaration *f; | |
| 2016 | |
| 2017 f = new CtorDeclaration(loc, endloc, NULL, varargs); | |
| 2018 | |
| 2019 f->outId = outId; | |
| 2020 f->frequire = frequire ? frequire->syntaxCopy() : NULL; | |
| 2021 f->fensure = fensure ? fensure->syntaxCopy() : NULL; | |
| 2022 f->fbody = fbody ? fbody->syntaxCopy() : NULL; | |
| 2023 assert(!fthrows); // deprecated | |
| 2024 | |
| 2025 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2026 return f; | |
| 2027 } | |
| 2028 | |
| 2029 | |
| 2030 void CtorDeclaration::semantic(Scope *sc) | |
| 2031 { | |
| 2032 ClassDeclaration *cd; | |
| 2033 Type *tret; | |
| 2034 | |
| 2035 //printf("CtorDeclaration::semantic()\n"); | |
| 2036 | |
| 2037 sc = sc->push(); | |
| 2038 sc->stc &= ~STCstatic; // not a static constructor | |
| 2039 | |
| 2040 parent = sc->parent; | |
| 2041 Dsymbol *parent = toParent(); | |
| 2042 cd = parent->isClassDeclaration(); | |
| 2043 if (!cd) | |
| 2044 { | |
| 2045 error("constructors only are for class definitions"); | |
| 2046 tret = Type::tvoid; | |
| 2047 } | |
| 2048 else | |
| 2049 tret = cd->type; //->referenceTo(); | |
| 2050 type = new TypeFunction(arguments, tret, varargs, LINKd); | |
| 2051 | |
| 2052 sc->flags |= SCOPEctor; | |
| 2053 type = type->semantic(loc, sc); | |
| 2054 sc->flags &= ~SCOPEctor; | |
| 2055 | |
| 2056 // Append: | |
| 2057 // return this; | |
| 2058 // to the function body | |
| 2059 if (fbody) | |
| 2060 { Expression *e; | |
| 2061 Statement *s; | |
| 2062 | |
| 2063 e = new ThisExp(0); | |
| 2064 s = new ReturnStatement(0, e); | |
| 2065 fbody = new CompoundStatement(0, fbody, s); | |
| 2066 } | |
| 2067 | |
| 2068 FuncDeclaration::semantic(sc); | |
| 2069 | |
| 2070 sc->pop(); | |
| 2071 | |
| 2072 // See if it's the default constructor | |
| 2073 if (cd && varargs == 0 && Argument::dim(arguments) == 0) | |
| 2074 cd->defaultCtor = this; | |
| 2075 } | |
| 2076 | |
| 2077 char *CtorDeclaration::kind() | |
| 2078 { | |
| 2079 return "constructor"; | |
| 2080 } | |
| 2081 | |
| 2082 char *CtorDeclaration::toChars() | |
| 2083 { | |
| 2084 return "this"; | |
| 2085 } | |
| 2086 | |
| 2087 int CtorDeclaration::isVirtual() | |
| 2088 { | |
| 2089 return FALSE; | |
| 2090 } | |
| 2091 | |
| 2092 int CtorDeclaration::addPreInvariant() | |
| 2093 { | |
| 2094 return FALSE; | |
| 2095 } | |
| 2096 | |
| 2097 int CtorDeclaration::addPostInvariant() | |
| 2098 { | |
| 2099 return (vthis && global.params.useInvariants); | |
| 2100 } | |
| 2101 | |
| 2102 | |
| 2103 void CtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2104 { | |
| 2105 buf->writestring("this"); | |
| 2106 Argument::argsToCBuffer(buf, hgs, arguments, varargs); | |
| 2107 bodyToCBuffer(buf, hgs); | |
| 2108 } | |
| 2109 | |
| 2110 /********************************* DtorDeclaration ****************************/ | |
| 2111 | |
| 2112 DtorDeclaration::DtorDeclaration(Loc loc, Loc endloc) | |
| 2113 : FuncDeclaration(loc, endloc, Id::dtor, STCundefined, NULL) | |
| 2114 { | |
| 2115 } | |
| 2116 | |
| 2117 Dsymbol *DtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2118 { | |
| 2119 DtorDeclaration *dd; | |
| 2120 | |
| 2121 assert(!s); | |
| 2122 dd = new DtorDeclaration(loc, endloc); | |
| 2123 return FuncDeclaration::syntaxCopy(dd); | |
| 2124 } | |
| 2125 | |
| 2126 | |
| 2127 void DtorDeclaration::semantic(Scope *sc) | |
| 2128 { | |
| 2129 ClassDeclaration *cd; | |
| 2130 | |
| 2131 parent = sc->parent; | |
| 2132 Dsymbol *parent = toParent(); | |
| 2133 cd = parent->isClassDeclaration(); | |
| 2134 if (!cd) | |
| 2135 { | |
| 2136 error("destructors only are for class definitions"); | |
| 2137 } | |
| 2138 else | |
| 2139 cd->dtors.push(this); | |
| 2140 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2141 | |
| 2142 sc = sc->push(); | |
| 2143 sc->stc &= ~STCstatic; // not a static destructor | |
| 2144 sc->linkage = LINKd; | |
| 2145 | |
| 2146 FuncDeclaration::semantic(sc); | |
| 2147 | |
| 2148 sc->pop(); | |
| 2149 } | |
| 2150 | |
| 2151 int DtorDeclaration::overloadInsert(Dsymbol *s) | |
| 2152 { | |
| 2153 return FALSE; // cannot overload destructors | |
| 2154 } | |
| 2155 | |
| 2156 int DtorDeclaration::addPreInvariant() | |
| 2157 { | |
| 2158 return (vthis && global.params.useInvariants); | |
| 2159 } | |
| 2160 | |
| 2161 int DtorDeclaration::addPostInvariant() | |
| 2162 { | |
| 2163 return FALSE; | |
| 2164 } | |
| 2165 | |
| 2166 int DtorDeclaration::isVirtual() | |
| 2167 { | |
| 2168 /* This should be FALSE so that dtor's don't get put into the vtbl[], | |
| 2169 * but doing so will require recompiling everything. | |
| 2170 */ | |
| 2171 #if BREAKABI | |
| 2172 return FALSE; | |
| 2173 #else | |
| 2174 return FuncDeclaration::isVirtual(); | |
| 2175 #endif | |
| 2176 } | |
| 2177 | |
| 2178 void DtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2179 { | |
| 2180 if (hgs->hdrgen) | |
| 2181 return; | |
| 2182 buf->writestring("~this()"); | |
| 2183 bodyToCBuffer(buf, hgs); | |
| 2184 } | |
| 2185 | |
| 2186 /********************************* StaticCtorDeclaration ****************************/ | |
| 2187 | |
| 2188 StaticCtorDeclaration::StaticCtorDeclaration(Loc loc, Loc endloc) | |
| 19 | 2189 : FuncDeclaration(loc, endloc, |
| 2190 Identifier::generateId("_staticCtor"), STCstatic, NULL) | |
| 1 | 2191 { |
| 2192 } | |
| 2193 | |
| 2194 Dsymbol *StaticCtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2195 { | |
| 2196 StaticCtorDeclaration *scd; | |
| 2197 | |
| 2198 assert(!s); | |
| 2199 scd = new StaticCtorDeclaration(loc, endloc); | |
| 2200 return FuncDeclaration::syntaxCopy(scd); | |
| 2201 } | |
| 2202 | |
| 2203 | |
| 2204 void StaticCtorDeclaration::semantic(Scope *sc) | |
| 2205 { | |
| 2206 //printf("StaticCtorDeclaration::semantic()\n"); | |
| 2207 | |
| 2208 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2209 | |
| 2210 FuncDeclaration::semantic(sc); | |
| 2211 | |
| 2212 // We're going to need ModuleInfo | |
| 2213 Module *m = getModule(); | |
| 2214 if (!m) | |
| 2215 m = sc->module; | |
| 2216 if (m) | |
| 2217 { m->needmoduleinfo = 1; | |
| 2218 #ifdef IN_GCC | |
| 2219 m->strictlyneedmoduleinfo = 1; | |
| 2220 #endif | |
| 2221 } | |
| 2222 } | |
| 2223 | |
| 2224 AggregateDeclaration *StaticCtorDeclaration::isThis() | |
| 2225 { | |
| 2226 return NULL; | |
| 2227 } | |
| 2228 | |
| 2229 int StaticCtorDeclaration::isStaticConstructor() | |
| 2230 { | |
| 2231 return TRUE; | |
| 2232 } | |
| 2233 | |
| 2234 int StaticCtorDeclaration::isVirtual() | |
| 2235 { | |
| 2236 return FALSE; | |
| 2237 } | |
| 2238 | |
| 2239 int StaticCtorDeclaration::addPreInvariant() | |
| 2240 { | |
| 2241 return FALSE; | |
| 2242 } | |
| 2243 | |
| 2244 int StaticCtorDeclaration::addPostInvariant() | |
| 2245 { | |
| 2246 return FALSE; | |
| 2247 } | |
| 2248 | |
| 2249 void StaticCtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2250 { | |
| 2251 if (hgs->hdrgen) | |
| 2252 { buf->writestring("static this(){}\n"); | |
| 2253 return; | |
| 2254 } | |
| 2255 buf->writestring("static this()"); | |
| 2256 bodyToCBuffer(buf, hgs); | |
| 2257 } | |
| 2258 | |
| 2259 /********************************* StaticDtorDeclaration ****************************/ | |
| 2260 | |
| 2261 StaticDtorDeclaration::StaticDtorDeclaration(Loc loc, Loc endloc) | |
| 19 | 2262 : FuncDeclaration(loc, endloc, |
| 2263 Identifier::generateId("_staticDtor"), STCstatic, NULL) | |
| 1 | 2264 { |
| 2265 } | |
| 2266 | |
| 2267 Dsymbol *StaticDtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2268 { | |
| 2269 StaticDtorDeclaration *sdd; | |
| 2270 | |
| 2271 assert(!s); | |
| 2272 sdd = new StaticDtorDeclaration(loc, endloc); | |
| 2273 return FuncDeclaration::syntaxCopy(sdd); | |
| 2274 } | |
| 2275 | |
| 2276 | |
| 2277 void StaticDtorDeclaration::semantic(Scope *sc) | |
| 2278 { | |
| 2279 ClassDeclaration *cd; | |
| 2280 Type *tret; | |
| 2281 | |
| 2282 cd = sc->scopesym->isClassDeclaration(); | |
| 2283 if (!cd) | |
| 2284 { | |
| 2285 } | |
| 2286 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2287 | |
| 2288 FuncDeclaration::semantic(sc); | |
| 2289 | |
| 2290 // We're going to need ModuleInfo | |
| 2291 Module *m = getModule(); | |
| 2292 if (!m) | |
| 2293 m = sc->module; | |
| 2294 if (m) | |
| 2295 { m->needmoduleinfo = 1; | |
| 2296 #ifdef IN_GCC | |
| 2297 m->strictlyneedmoduleinfo = 1; | |
| 2298 #endif | |
| 2299 } | |
| 2300 } | |
| 2301 | |
| 2302 AggregateDeclaration *StaticDtorDeclaration::isThis() | |
| 2303 { | |
| 2304 return NULL; | |
| 2305 } | |
| 2306 | |
| 2307 int StaticDtorDeclaration::isStaticDestructor() | |
| 2308 { | |
| 2309 return TRUE; | |
| 2310 } | |
| 2311 | |
| 2312 int StaticDtorDeclaration::isVirtual() | |
| 2313 { | |
| 2314 return FALSE; | |
| 2315 } | |
| 2316 | |
| 2317 int StaticDtorDeclaration::addPreInvariant() | |
| 2318 { | |
| 2319 return FALSE; | |
| 2320 } | |
| 2321 | |
| 2322 int StaticDtorDeclaration::addPostInvariant() | |
| 2323 { | |
| 2324 return FALSE; | |
| 2325 } | |
| 2326 | |
| 2327 void StaticDtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2328 { | |
| 2329 if (hgs->hdrgen) | |
| 2330 return; | |
| 2331 buf->writestring("static ~this()"); | |
| 2332 bodyToCBuffer(buf, hgs); | |
| 2333 } | |
| 2334 | |
| 2335 /********************************* InvariantDeclaration ****************************/ | |
| 2336 | |
| 2337 InvariantDeclaration::InvariantDeclaration(Loc loc, Loc endloc) | |
| 2338 : FuncDeclaration(loc, endloc, Id::classInvariant, STCundefined, NULL) | |
| 2339 { | |
| 2340 } | |
| 2341 | |
| 2342 Dsymbol *InvariantDeclaration::syntaxCopy(Dsymbol *s) | |
| 2343 { | |
| 2344 InvariantDeclaration *id; | |
| 2345 | |
| 2346 assert(!s); | |
| 2347 id = new InvariantDeclaration(loc, endloc); | |
| 2348 FuncDeclaration::syntaxCopy(id); | |
| 2349 return id; | |
| 2350 } | |
| 2351 | |
| 2352 | |
| 2353 void InvariantDeclaration::semantic(Scope *sc) | |
| 2354 { | |
| 2355 AggregateDeclaration *ad; | |
| 2356 Type *tret; | |
| 2357 | |
| 2358 parent = sc->parent; | |
| 2359 Dsymbol *parent = toParent(); | |
| 2360 ad = parent->isAggregateDeclaration(); | |
| 2361 if (!ad) | |
| 2362 { | |
| 2363 error("invariants only are for struct/union/class definitions"); | |
| 2364 return; | |
| 2365 } | |
| 2366 else if (ad->inv && ad->inv != this) | |
| 2367 { | |
| 2368 error("more than one invariant for %s", ad->toChars()); | |
| 2369 } | |
| 2370 ad->inv = this; | |
| 2371 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2372 | |
| 2373 sc = sc->push(); | |
| 2374 sc->stc &= ~STCstatic; // not a static invariant | |
| 2375 sc->incontract++; | |
| 2376 sc->linkage = LINKd; | |
| 2377 | |
| 2378 FuncDeclaration::semantic(sc); | |
| 2379 | |
| 2380 sc->pop(); | |
| 2381 } | |
| 2382 | |
| 2383 int InvariantDeclaration::isVirtual() | |
| 2384 { | |
| 2385 return FALSE; | |
| 2386 } | |
| 2387 | |
| 2388 int InvariantDeclaration::addPreInvariant() | |
| 2389 { | |
| 2390 return FALSE; | |
| 2391 } | |
| 2392 | |
| 2393 int InvariantDeclaration::addPostInvariant() | |
| 2394 { | |
| 2395 return FALSE; | |
| 2396 } | |
| 2397 | |
| 2398 void InvariantDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2399 { | |
| 2400 if (hgs->hdrgen) | |
| 2401 return; | |
| 2402 buf->writestring("invariant"); | |
| 2403 bodyToCBuffer(buf, hgs); | |
| 2404 } | |
| 2405 | |
| 2406 | |
| 2407 /********************************* UnitTestDeclaration ****************************/ | |
| 2408 | |
| 2409 /******************************* | |
| 2410 * Generate unique unittest function Id so we can have multiple | |
| 2411 * instances per module. | |
| 2412 */ | |
| 2413 | |
| 2414 static Identifier *unitTestId() | |
| 2415 { | |
| 2416 static int n; | |
| 2417 char buffer[10 + sizeof(n)*3 + 1]; | |
| 2418 | |
| 2419 sprintf(buffer,"__unittest%d", n); | |
| 2420 n++; | |
| 2421 return Lexer::idPool(buffer); | |
| 2422 } | |
| 2423 | |
| 2424 UnitTestDeclaration::UnitTestDeclaration(Loc loc, Loc endloc) | |
| 2425 : FuncDeclaration(loc, endloc, unitTestId(), STCundefined, NULL) | |
| 2426 { | |
| 2427 } | |
| 2428 | |
| 2429 Dsymbol *UnitTestDeclaration::syntaxCopy(Dsymbol *s) | |
| 2430 { | |
| 2431 UnitTestDeclaration *utd; | |
| 2432 | |
| 2433 assert(!s); | |
| 2434 utd = new UnitTestDeclaration(loc, endloc); | |
| 2435 return FuncDeclaration::syntaxCopy(utd); | |
| 2436 } | |
| 2437 | |
| 2438 | |
| 2439 void UnitTestDeclaration::semantic(Scope *sc) | |
| 2440 { | |
| 2441 if (global.params.useUnitTests) | |
| 2442 { | |
| 2443 Type *tret; | |
| 2444 | |
| 2445 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2446 FuncDeclaration::semantic(sc); | |
| 2447 } | |
| 2448 | |
| 2449 // We're going to need ModuleInfo even if the unit tests are not | |
| 2450 // compiled in, because other modules may import this module and refer | |
| 2451 // to this ModuleInfo. | |
| 2452 Module *m = getModule(); | |
| 2453 if (!m) | |
| 2454 m = sc->module; | |
| 2455 if (m) | |
| 2456 m->needmoduleinfo = 1; | |
| 2457 } | |
| 2458 | |
| 2459 AggregateDeclaration *UnitTestDeclaration::isThis() | |
| 2460 { | |
| 2461 return NULL; | |
| 2462 } | |
| 2463 | |
| 2464 int UnitTestDeclaration::isVirtual() | |
| 2465 { | |
| 2466 return FALSE; | |
| 2467 } | |
| 2468 | |
| 2469 int UnitTestDeclaration::addPreInvariant() | |
| 2470 { | |
| 2471 return FALSE; | |
| 2472 } | |
| 2473 | |
| 2474 int UnitTestDeclaration::addPostInvariant() | |
| 2475 { | |
| 2476 return FALSE; | |
| 2477 } | |
| 2478 | |
| 2479 void UnitTestDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2480 { | |
| 2481 if (hgs->hdrgen) | |
| 2482 return; | |
| 2483 buf->writestring("unittest"); | |
| 2484 bodyToCBuffer(buf, hgs); | |
| 2485 } | |
| 2486 | |
| 2487 /********************************* NewDeclaration ****************************/ | |
| 2488 | |
| 2489 NewDeclaration::NewDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs) | |
| 2490 : FuncDeclaration(loc, endloc, Id::classNew, STCstatic, NULL) | |
| 2491 { | |
| 2492 this->arguments = arguments; | |
| 2493 this->varargs = varargs; | |
| 2494 } | |
| 2495 | |
| 2496 Dsymbol *NewDeclaration::syntaxCopy(Dsymbol *s) | |
| 2497 { | |
| 2498 NewDeclaration *f; | |
| 2499 | |
| 2500 f = new NewDeclaration(loc, endloc, NULL, varargs); | |
| 2501 | |
| 2502 FuncDeclaration::syntaxCopy(f); | |
| 2503 | |
| 2504 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2505 | |
| 2506 return f; | |
| 2507 } | |
| 2508 | |
| 2509 | |
| 2510 void NewDeclaration::semantic(Scope *sc) | |
| 2511 { | |
| 2512 ClassDeclaration *cd; | |
| 2513 Type *tret; | |
| 2514 | |
| 2515 //printf("NewDeclaration::semantic()\n"); | |
| 2516 | |
| 2517 parent = sc->parent; | |
| 2518 Dsymbol *parent = toParent(); | |
| 2519 cd = parent->isClassDeclaration(); | |
| 2520 if (!cd && !parent->isStructDeclaration()) | |
| 2521 { | |
| 2522 error("new allocators only are for class or struct definitions"); | |
| 2523 } | |
| 2524 tret = Type::tvoid->pointerTo(); | |
| 2525 type = new TypeFunction(arguments, tret, varargs, LINKd); | |
| 2526 | |
| 2527 type = type->semantic(loc, sc); | |
| 2528 assert(type->ty == Tfunction); | |
| 2529 | |
| 2530 // Check that there is at least one argument of type uint | |
| 2531 TypeFunction *tf = (TypeFunction *)type; | |
| 2532 if (Argument::dim(tf->parameters) < 1) | |
| 2533 { | |
| 2534 error("at least one argument of type uint expected"); | |
| 2535 } | |
| 2536 else | |
| 2537 { | |
| 2538 Argument *a = Argument::getNth(tf->parameters, 0); | |
| 2539 if (!a->type->equals(Type::tuns32)) | |
| 2540 error("first argument must be type uint, not %s", a->type->toChars()); | |
| 2541 } | |
| 2542 | |
| 2543 FuncDeclaration::semantic(sc); | |
| 2544 } | |
| 2545 | |
| 2546 char *NewDeclaration::kind() | |
| 2547 { | |
| 2548 return "allocator"; | |
| 2549 } | |
| 2550 | |
| 2551 int NewDeclaration::isVirtual() | |
| 2552 { | |
| 2553 return FALSE; | |
| 2554 } | |
| 2555 | |
| 2556 int NewDeclaration::addPreInvariant() | |
| 2557 { | |
| 2558 return FALSE; | |
| 2559 } | |
| 2560 | |
| 2561 int NewDeclaration::addPostInvariant() | |
| 2562 { | |
| 2563 return FALSE; | |
| 2564 } | |
| 2565 | |
| 2566 void NewDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2567 { | |
| 2568 buf->writestring("new"); | |
| 2569 Argument::argsToCBuffer(buf, hgs, arguments, varargs); | |
| 2570 bodyToCBuffer(buf, hgs); | |
| 2571 } | |
| 2572 | |
| 2573 | |
| 2574 /********************************* DeleteDeclaration ****************************/ | |
| 2575 | |
| 2576 DeleteDeclaration::DeleteDeclaration(Loc loc, Loc endloc, Arguments *arguments) | |
| 2577 : FuncDeclaration(loc, endloc, Id::classDelete, STCstatic, NULL) | |
| 2578 { | |
| 2579 this->arguments = arguments; | |
| 2580 } | |
| 2581 | |
| 2582 Dsymbol *DeleteDeclaration::syntaxCopy(Dsymbol *s) | |
| 2583 { | |
| 2584 DeleteDeclaration *f; | |
| 2585 | |
| 2586 f = new DeleteDeclaration(loc, endloc, NULL); | |
| 2587 | |
| 2588 FuncDeclaration::syntaxCopy(f); | |
| 2589 | |
| 2590 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2591 | |
| 2592 return f; | |
| 2593 } | |
| 2594 | |
| 2595 | |
| 2596 void DeleteDeclaration::semantic(Scope *sc) | |
| 2597 { | |
| 2598 ClassDeclaration *cd; | |
| 2599 | |
| 2600 //printf("DeleteDeclaration::semantic()\n"); | |
| 2601 | |
| 2602 parent = sc->parent; | |
| 2603 Dsymbol *parent = toParent(); | |
| 2604 cd = parent->isClassDeclaration(); | |
| 2605 if (!cd && !parent->isStructDeclaration()) | |
| 2606 { | |
| 2607 error("new allocators only are for class or struct definitions"); | |
| 2608 } | |
| 2609 type = new TypeFunction(arguments, Type::tvoid, 0, LINKd); | |
| 2610 | |
| 2611 type = type->semantic(loc, sc); | |
| 2612 assert(type->ty == Tfunction); | |
| 2613 | |
| 2614 // Check that there is only one argument of type void* | |
| 2615 TypeFunction *tf = (TypeFunction *)type; | |
| 2616 if (Argument::dim(tf->parameters) != 1) | |
| 2617 { | |
| 2618 error("one argument of type void* expected"); | |
| 2619 } | |
| 2620 else | |
| 2621 { | |
| 2622 Argument *a = Argument::getNth(tf->parameters, 0); | |
| 2623 if (!a->type->equals(Type::tvoid->pointerTo())) | |
| 2624 error("one argument of type void* expected, not %s", a->type->toChars()); | |
| 2625 } | |
| 2626 | |
| 2627 FuncDeclaration::semantic(sc); | |
| 2628 } | |
| 2629 | |
| 2630 char *DeleteDeclaration::kind() | |
| 2631 { | |
| 2632 return "deallocator"; | |
| 2633 } | |
| 2634 | |
| 2635 int DeleteDeclaration::isDelete() | |
| 2636 { | |
| 2637 return TRUE; | |
| 2638 } | |
| 2639 | |
| 2640 int DeleteDeclaration::isVirtual() | |
| 2641 { | |
| 2642 return FALSE; | |
| 2643 } | |
| 2644 | |
| 2645 int DeleteDeclaration::addPreInvariant() | |
| 2646 { | |
| 2647 return FALSE; | |
| 2648 } | |
| 2649 | |
| 2650 int DeleteDeclaration::addPostInvariant() | |
| 2651 { | |
| 2652 return FALSE; | |
| 2653 } | |
| 2654 | |
| 2655 void DeleteDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2656 { | |
| 2657 buf->writestring("delete"); | |
| 2658 Argument::argsToCBuffer(buf, hgs, arguments, 0); | |
| 2659 bodyToCBuffer(buf, hgs); | |
| 2660 } | |
| 2661 | |
| 2662 | |
| 2663 | |
| 2664 |