Mercurial > projects > ldc
annotate dmd/func.c @ 1194:1853dcd9b944
Moved some DMDFE files into a seperate dmd/root subdir to closer match the DMD file structure since 1.041.
| author | Tomas Lindquist Olsen <tomas.l.olsen gmail.com> |
|---|---|
| date | Fri, 03 Apr 2009 17:02:52 +0200 |
| parents | a8b9fc41c34b |
| children | e961851fb8be |
| rev | line source |
|---|---|
| 159 | 1 |
| 2 // Compiler implementation of the D programming language | |
| 3 // Copyright (c) 1999-2008 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 //printf("FuncDeclaration(id = '%s', type = %p)\n", id->toChars(), type); | |
| 39 this->storage_class = storage_class; | |
| 40 this->type = type; | |
| 41 this->loc = loc; | |
| 42 this->endloc = endloc; | |
| 43 fthrows = NULL; | |
| 44 frequire = NULL; | |
| 45 outId = NULL; | |
| 46 vresult = NULL; | |
| 47 returnLabel = NULL; | |
| 48 fensure = NULL; | |
| 49 fbody = NULL; | |
| 50 localsymtab = NULL; | |
| 51 vthis = NULL; | |
| 52 v_arguments = NULL; | |
| 53 #if IN_GCC | |
| 54 v_argptr = NULL; | |
| 55 #endif | |
| 56 parameters = NULL; | |
| 57 labtab = NULL; | |
| 58 overnext = NULL; | |
| 59 vtblIndex = -1; | |
| 60 hasReturnExp = 0; | |
| 61 naked = 0; | |
| 62 inlineStatus = ILSuninitialized; | |
| 63 inlineNest = 0; | |
| 64 inlineAsm = 0; | |
| 65 cantInterpret = 0; | |
| 66 semanticRun = 0; | |
| 67 nestedFrameRef = 0; | |
| 68 fes = NULL; | |
| 69 introducing = 0; | |
| 70 tintro = NULL; | |
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71 /* The type given for "infer the return type" is a TypeFunction with |
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72 * NULL for the return type. |
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73 */ |
| 159 | 74 inferRetType = (type && type->nextOf() == NULL); |
| 75 scope = NULL; | |
| 76 hasReturnExp = 0; | |
| 77 nrvo_can = 1; | |
| 78 nrvo_var = NULL; | |
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79 #if IN_DMD |
| 159 | 80 shidden = NULL; |
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81 #endif |
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82 |
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83 #if IN_LLVM |
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84 // LDC |
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85 isArrayOp = false; |
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86 allowInlining = false; |
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87 #endif |
| 159 | 88 } |
| 89 | |
| 90 Dsymbol *FuncDeclaration::syntaxCopy(Dsymbol *s) | |
| 91 { | |
| 92 FuncDeclaration *f; | |
| 93 | |
| 94 //printf("FuncDeclaration::syntaxCopy('%s')\n", toChars()); | |
| 95 if (s) | |
| 96 f = (FuncDeclaration *)s; | |
| 97 else | |
| 98 f = new FuncDeclaration(loc, endloc, ident, (enum STC) storage_class, type->syntaxCopy()); | |
| 99 f->outId = outId; | |
| 100 f->frequire = frequire ? frequire->syntaxCopy() : NULL; | |
| 101 f->fensure = fensure ? fensure->syntaxCopy() : NULL; | |
| 102 f->fbody = fbody ? fbody->syntaxCopy() : NULL; | |
| 103 assert(!fthrows); // deprecated | |
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104 |
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105 // LDC |
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106 f->intrinsicName = intrinsicName; |
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107 |
| 159 | 108 return f; |
| 109 } | |
| 110 | |
| 111 | |
| 112 // Do the semantic analysis on the external interface to the function. | |
| 113 | |
| 114 void FuncDeclaration::semantic(Scope *sc) | |
| 115 { TypeFunction *f; | |
| 116 StructDeclaration *sd; | |
| 117 ClassDeclaration *cd; | |
| 118 InterfaceDeclaration *id; | |
| 336 | 119 Dsymbol *pd; |
| 159 | 120 |
| 121 #if 0 | |
| 122 printf("FuncDeclaration::semantic(sc = %p, this = %p, '%s', linkage = %d)\n", sc, this, toPrettyChars(), sc->linkage); | |
| 123 if (isFuncLiteralDeclaration()) | |
| 124 printf("\tFuncLiteralDeclaration()\n"); | |
| 125 printf("sc->parent = %s\n", sc->parent->toChars()); | |
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126 printf("type: %p, %s\n", type, type->toChars()); |
| 159 | 127 #endif |
| 128 | |
| 129 if (type->nextOf()) | |
| 130 type = type->semantic(loc, sc); | |
| 131 //type->print(); | |
| 132 if (type->ty != Tfunction) | |
| 133 { | |
| 134 error("%s must be a function", toChars()); | |
| 135 return; | |
| 136 } | |
| 137 f = (TypeFunction *)(type); | |
| 138 size_t nparams = Argument::dim(f->parameters); | |
| 139 | |
| 140 linkage = sc->linkage; | |
| 141 // if (!parent) | |
| 142 { | |
| 143 //parent = sc->scopesym; | |
| 144 parent = sc->parent; | |
| 145 } | |
| 146 protection = sc->protection; | |
| 147 storage_class |= sc->stc; | |
| 148 //printf("function storage_class = x%x\n", storage_class); | |
| 149 Dsymbol *parent = toParent(); | |
| 150 | |
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151 if (ident == Id::ctor && !isCtorDeclaration()) |
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152 error("_ctor is reserved for constructors"); |
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153 |
| 159 | 154 if (isConst() || isAuto() || isScope()) |
| 155 error("functions cannot be const or auto"); | |
| 156 | |
| 157 if (isAbstract() && !isVirtual()) | |
| 158 error("non-virtual functions cannot be abstract"); | |
| 159 | |
| 160 if (isAbstract() && isFinal()) | |
| 161 error("cannot be both final and abstract"); | |
| 162 #if 0 | |
| 163 if (isAbstract() && fbody) | |
| 164 error("abstract functions cannot have bodies"); | |
| 165 #endif | |
| 166 | |
| 167 #if 0 | |
| 168 if (isStaticConstructor() || isStaticDestructor()) | |
| 169 { | |
| 170 if (!isStatic() || type->nextOf()->ty != Tvoid) | |
| 171 error("static constructors / destructors must be static void"); | |
| 172 if (f->arguments && f->arguments->dim) | |
| 173 error("static constructors / destructors must have empty parameter list"); | |
| 174 // BUG: check for invalid storage classes | |
| 175 } | |
| 176 #endif | |
| 177 | |
| 178 #ifdef IN_GCC | |
| 179 AggregateDeclaration *ad; | |
| 180 | |
| 181 ad = parent->isAggregateDeclaration(); | |
| 182 if (ad) | |
| 183 ad->methods.push(this); | |
| 184 #endif | |
| 185 sd = parent->isStructDeclaration(); | |
| 186 if (sd) | |
| 187 { | |
| 188 // Verify no constructors, destructors, etc. | |
| 189 if (isCtorDeclaration() || | |
| 190 isDtorDeclaration() | |
| 191 //|| isInvariantDeclaration() | |
| 192 //|| isUnitTestDeclaration() | |
| 193 ) | |
| 194 { | |
| 195 error("special member functions not allowed for %ss", sd->kind()); | |
| 196 } | |
| 197 | |
| 198 #if 0 | |
| 199 if (!sd->inv) | |
| 200 sd->inv = isInvariantDeclaration(); | |
| 201 | |
| 202 if (!sd->aggNew) | |
| 203 sd->aggNew = isNewDeclaration(); | |
| 204 | |
| 205 if (isDelete()) | |
| 206 { | |
| 207 if (sd->aggDelete) | |
| 208 error("multiple delete's for struct %s", sd->toChars()); | |
| 209 sd->aggDelete = (DeleteDeclaration *)(this); | |
| 210 } | |
| 211 #endif | |
| 212 } | |
| 213 | |
| 214 id = parent->isInterfaceDeclaration(); | |
| 215 if (id) | |
| 216 { | |
| 217 storage_class |= STCabstract; | |
| 218 | |
| 219 if (isCtorDeclaration() || | |
| 220 isDtorDeclaration() || | |
| 221 isInvariantDeclaration() || | |
| 222 isUnitTestDeclaration() || isNewDeclaration() || isDelete()) | |
| 223 error("special function not allowed in interface %s", id->toChars()); | |
| 224 if (fbody) | |
| 225 error("function body is not abstract in interface %s", id->toChars()); | |
| 226 } | |
| 227 | |
| 336 | 228 /* Template member functions aren't virtual: |
| 229 * interface TestInterface { void tpl(T)(); } | |
| 230 * and so won't work in interfaces | |
| 231 */ | |
| 232 if ((pd = toParent()) != NULL && | |
| 233 pd->isTemplateInstance() && | |
| 234 (pd = toParent2()) != NULL && | |
| 235 (id = pd->isInterfaceDeclaration()) != NULL) | |
| 236 { | |
| 237 error("template member function not allowed in interface %s", id->toChars()); | |
| 238 } | |
| 239 | |
| 159 | 240 cd = parent->isClassDeclaration(); |
| 241 if (cd) | |
| 242 { int vi; | |
| 243 CtorDeclaration *ctor; | |
| 244 DtorDeclaration *dtor; | |
| 245 InvariantDeclaration *inv; | |
| 246 | |
| 247 if (isCtorDeclaration()) | |
| 248 { | |
| 249 // ctor = (CtorDeclaration *)this; | |
| 250 // if (!cd->ctor) | |
| 251 // cd->ctor = ctor; | |
| 252 return; | |
| 253 } | |
| 254 | |
| 255 #if 0 | |
| 256 dtor = isDtorDeclaration(); | |
| 257 if (dtor) | |
| 258 { | |
| 259 if (cd->dtor) | |
| 260 error("multiple destructors for class %s", cd->toChars()); | |
| 261 cd->dtor = dtor; | |
| 262 } | |
| 263 | |
| 264 inv = isInvariantDeclaration(); | |
| 265 if (inv) | |
| 266 { | |
| 267 cd->inv = inv; | |
| 268 } | |
| 269 | |
| 270 if (isNewDeclaration()) | |
| 271 { | |
| 272 if (!cd->aggNew) | |
| 273 cd->aggNew = (NewDeclaration *)(this); | |
| 274 } | |
| 275 | |
| 276 if (isDelete()) | |
| 277 { | |
| 278 if (cd->aggDelete) | |
| 279 error("multiple delete's for class %s", cd->toChars()); | |
| 280 cd->aggDelete = (DeleteDeclaration *)(this); | |
| 281 } | |
| 282 #endif | |
| 283 | |
| 284 if (storage_class & STCabstract) | |
| 285 cd->isabstract = 1; | |
| 286 | |
| 287 // if static function, do not put in vtbl[] | |
| 288 if (!isVirtual()) | |
| 289 { | |
| 290 //printf("\tnot virtual\n"); | |
| 291 goto Ldone; | |
| 292 } | |
| 293 | |
| 294 // Find index of existing function in vtbl[] to override | |
| 295 vi = findVtblIndex(&cd->vtbl, cd->baseClass ? cd->baseClass->vtbl.dim : 0); | |
| 296 switch (vi) | |
| 297 { | |
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298 case -1: |
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299 /* Didn't find one, so |
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300 * This is an 'introducing' function which gets a new |
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301 * slot in the vtbl[]. |
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302 */ |
| 159 | 303 |
| 304 // Verify this doesn't override previous final function | |
| 305 if (cd->baseClass) | |
| 306 { Dsymbol *s = cd->baseClass->search(loc, ident, 0); | |
| 307 if (s) | |
| 308 { | |
| 309 FuncDeclaration *f = s->isFuncDeclaration(); | |
| 310 f = f->overloadExactMatch(type); | |
| 311 if (f && f->isFinal() && f->prot() != PROTprivate) | |
| 312 error("cannot override final function %s", f->toPrettyChars()); | |
| 313 } | |
| 314 } | |
| 315 | |
| 316 if (isFinal()) | |
| 317 { | |
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318 if (isOverride()) |
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319 error("does not override any function"); |
| 159 | 320 cd->vtblFinal.push(this); |
| 321 } | |
| 322 else | |
| 323 { | |
| 324 // Append to end of vtbl[] | |
| 325 //printf("\tintroducing function\n"); | |
| 326 introducing = 1; | |
| 327 vi = cd->vtbl.dim; | |
| 328 cd->vtbl.push(this); | |
| 329 vtblIndex = vi; | |
| 330 } | |
| 331 break; | |
| 332 | |
| 333 case -2: // can't determine because of fwd refs | |
| 334 cd->sizeok = 2; // can't finish due to forward reference | |
| 335 return; | |
| 336 | |
| 337 default: | |
| 338 { FuncDeclaration *fdv = (FuncDeclaration *)cd->vtbl.data[vi]; | |
| 339 // This function is covariant with fdv | |
| 340 if (fdv->isFinal()) | |
| 341 error("cannot override final function %s", fdv->toPrettyChars()); | |
| 342 | |
| 336 | 343 #if DMDV2 |
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344 if (!isOverride()) |
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345 warning(loc, "overrides base class function %s, but is not marked with 'override'", fdv->toPrettyChars()); |
| 159 | 346 #endif |
| 347 | |
| 348 if (fdv->toParent() == parent) | |
| 349 { | |
| 350 // If both are mixins, then error. | |
| 351 // If either is not, the one that is not overrides | |
| 352 // the other. | |
| 353 if (fdv->parent->isClassDeclaration()) | |
| 354 break; | |
| 355 if (!this->parent->isClassDeclaration() | |
| 356 #if !BREAKABI | |
| 357 && !isDtorDeclaration() | |
| 358 #endif | |
| 336 | 359 #if DMDV2 |
| 159 | 360 && !isPostBlitDeclaration() |
| 361 #endif | |
| 362 ) | |
| 363 error("multiple overrides of same function"); | |
| 364 } | |
| 365 cd->vtbl.data[vi] = (void *)this; | |
| 366 vtblIndex = vi; | |
| 367 | |
| 368 /* This works by whenever this function is called, | |
| 369 * it actually returns tintro, which gets dynamically | |
| 370 * cast to type. But we know that tintro is a base | |
| 371 * of type, so we could optimize it by not doing a | |
| 372 * dynamic cast, but just subtracting the isBaseOf() | |
| 373 * offset if the value is != null. | |
| 374 */ | |
| 375 | |
| 376 if (fdv->tintro) | |
| 377 tintro = fdv->tintro; | |
| 378 else if (!type->equals(fdv->type)) | |
| 379 { | |
| 380 /* Only need to have a tintro if the vptr | |
| 381 * offsets differ | |
| 382 */ | |
| 383 int offset; | |
| 384 if (fdv->type->nextOf()->isBaseOf(type->nextOf(), &offset)) | |
| 385 { | |
| 386 tintro = fdv->type; | |
| 387 } | |
| 388 } | |
| 389 break; | |
| 390 } | |
| 391 } | |
| 392 | |
| 393 /* Go through all the interface bases. | |
| 394 * If this function is covariant with any members of those interface | |
| 395 * functions, set the tintro. | |
| 396 */ | |
| 397 for (int i = 0; i < cd->interfaces_dim; i++) | |
| 398 { | |
| 399 #if 1 | |
| 400 BaseClass *b = cd->interfaces[i]; | |
| 401 vi = findVtblIndex(&b->base->vtbl, b->base->vtbl.dim); | |
| 402 switch (vi) | |
| 403 { | |
| 404 case -1: | |
| 405 break; | |
| 406 | |
| 407 case -2: | |
| 408 cd->sizeok = 2; // can't finish due to forward reference | |
| 409 return; | |
| 410 | |
| 411 default: | |
| 412 { FuncDeclaration *fdv = (FuncDeclaration *)b->base->vtbl.data[vi]; | |
| 413 Type *ti = NULL; | |
| 414 | |
| 415 if (fdv->tintro) | |
| 416 ti = fdv->tintro; | |
| 417 else if (!type->equals(fdv->type)) | |
| 418 { | |
| 419 /* Only need to have a tintro if the vptr | |
| 420 * offsets differ | |
| 421 */ | |
| 422 int offset; | |
| 423 if (fdv->type->nextOf()->isBaseOf(type->nextOf(), &offset)) | |
| 424 { | |
| 425 ti = fdv->type; | |
| 426 #if 0 | |
| 427 if (offset) | |
| 428 ti = fdv->type; | |
| 429 else if (type->nextOf()->ty == Tclass) | |
| 430 { ClassDeclaration *cdn = ((TypeClass *)type->nextOf())->sym; | |
| 431 if (cdn && cdn->sizeok != 1) | |
| 432 ti = fdv->type; | |
| 433 } | |
| 434 #endif | |
| 435 } | |
| 436 } | |
| 437 if (ti) | |
| 438 { | |
| 439 if (tintro && !tintro->equals(ti)) | |
| 440 { | |
| 441 error("incompatible covariant types %s and %s", tintro->toChars(), ti->toChars()); | |
| 442 } | |
| 443 tintro = ti; | |
| 444 } | |
| 445 goto L2; | |
| 446 } | |
| 447 } | |
| 448 #else | |
| 449 BaseClass *b = cd->interfaces[i]; | |
| 450 for (vi = 0; vi < b->base->vtbl.dim; vi++) | |
| 451 { | |
| 452 Dsymbol *s = (Dsymbol *)b->base->vtbl.data[vi]; | |
| 453 //printf("interface %d vtbl[%d] %p %s\n", i, vi, s, s->toChars()); | |
| 454 FuncDeclaration *fdv = s->isFuncDeclaration(); | |
| 455 if (fdv && fdv->ident == ident) | |
| 456 { | |
| 457 int cov = type->covariant(fdv->type); | |
| 458 //printf("\tcov = %d\n", cov); | |
| 459 if (cov == 2) | |
| 460 { | |
| 461 //type->print(); | |
| 462 //fdv->type->print(); | |
| 463 //printf("%s %s\n", type->deco, fdv->type->deco); | |
| 464 error("of type %s overrides but is not covariant with %s of type %s", | |
| 465 type->toChars(), fdv->toPrettyChars(), fdv->type->toChars()); | |
| 466 } | |
| 467 if (cov == 1) | |
| 468 { Type *ti = NULL; | |
| 469 | |
| 470 if (fdv->tintro) | |
| 471 ti = fdv->tintro; | |
| 472 else if (!type->equals(fdv->type)) | |
| 473 { | |
| 474 /* Only need to have a tintro if the vptr | |
| 475 * offsets differ | |
| 476 */ | |
| 477 int offset; | |
| 478 if (fdv->type->nextOf()->isBaseOf(type->nextOf(), &offset)) | |
| 479 { | |
| 480 ti = fdv->type; | |
| 481 #if 0 | |
| 482 if (offset) | |
| 483 ti = fdv->type; | |
| 484 else if (type->nextOf()->ty == Tclass) | |
| 485 { ClassDeclaration *cdn = ((TypeClass *)type->nextOf())->sym; | |
| 486 if (cdn && cdn->sizeok != 1) | |
| 487 ti = fdv->type; | |
| 488 } | |
| 489 #endif | |
| 490 } | |
| 491 } | |
| 492 if (ti) | |
| 493 { | |
| 494 if (tintro && !tintro->equals(ti)) | |
| 495 { | |
| 496 error("incompatible covariant types %s and %s", tintro->toChars(), ti->toChars()); | |
| 497 } | |
| 498 tintro = ti; | |
| 499 } | |
| 500 goto L2; | |
| 501 } | |
| 502 if (cov == 3) | |
| 503 { | |
| 504 cd->sizeok = 2; // can't finish due to forward reference | |
| 505 return; | |
| 506 } | |
| 507 } | |
| 508 } | |
| 509 #endif | |
| 510 } | |
| 511 | |
| 512 if (introducing && isOverride()) | |
| 513 { | |
| 514 error("does not override any function"); | |
| 515 } | |
| 516 | |
| 517 L2: ; | |
| 518 } | |
| 519 else if (isOverride() && !parent->isTemplateInstance()) | |
| 520 error("override only applies to class member functions"); | |
| 521 | |
| 522 /* Do not allow template instances to add virtual functions | |
| 523 * to a class. | |
| 524 */ | |
| 525 if (isVirtual()) | |
| 526 { | |
| 527 TemplateInstance *ti = parent->isTemplateInstance(); | |
| 528 if (ti) | |
| 529 { | |
| 530 // Take care of nested templates | |
| 531 while (1) | |
| 532 { | |
| 533 TemplateInstance *ti2 = ti->tempdecl->parent->isTemplateInstance(); | |
| 534 if (!ti2) | |
| 535 break; | |
| 536 ti = ti2; | |
| 537 } | |
| 538 | |
| 539 // If it's a member template | |
| 540 ClassDeclaration *cd = ti->tempdecl->isClassMember(); | |
| 541 if (cd) | |
| 542 { | |
| 543 error("cannot use template to add virtual function to class '%s'", cd->toChars()); | |
| 544 } | |
| 545 } | |
| 546 } | |
| 547 | |
| 548 if (isMain()) | |
| 549 { | |
| 550 // Check parameters to see if they are either () or (char[][] args) | |
| 551 switch (nparams) | |
| 552 { | |
| 553 case 0: | |
| 554 break; | |
| 555 | |
| 556 case 1: | |
| 557 { | |
| 558 Argument *arg0 = Argument::getNth(f->parameters, 0); | |
| 559 if (arg0->type->ty != Tarray || | |
| 560 arg0->type->nextOf()->ty != Tarray || | |
| 561 arg0->type->nextOf()->nextOf()->ty != Tchar || | |
| 562 arg0->storageClass & (STCout | STCref | STClazy)) | |
| 563 goto Lmainerr; | |
| 564 break; | |
| 565 } | |
| 566 | |
| 567 default: | |
| 568 goto Lmainerr; | |
| 569 } | |
| 570 | |
| 571 if (f->nextOf()->ty != Tint32 && f->nextOf()->ty != Tvoid) | |
| 572 error("must return int or void, not %s", f->nextOf()->toChars()); | |
| 573 if (f->varargs) | |
| 574 { | |
| 575 Lmainerr: | |
| 576 error("parameters must be main() or main(char[][] args)"); | |
| 577 } | |
| 578 } | |
| 579 | |
| 580 if (ident == Id::assign && (sd || cd)) | |
| 581 { // Disallow identity assignment operator. | |
| 582 | |
| 583 // opAssign(...) | |
| 584 if (nparams == 0) | |
| 585 { if (f->varargs == 1) | |
| 586 goto Lassignerr; | |
| 587 } | |
| 588 else | |
| 589 { | |
| 590 Argument *arg0 = Argument::getNth(f->parameters, 0); | |
| 591 Type *t0 = arg0->type->toBasetype(); | |
| 592 Type *tb = sd ? sd->type : cd->type; | |
| 593 if (arg0->type->implicitConvTo(tb) || | |
| 594 (sd && t0->ty == Tpointer && t0->nextOf()->implicitConvTo(tb)) | |
| 595 ) | |
| 596 { | |
| 597 if (nparams == 1) | |
| 598 goto Lassignerr; | |
| 599 Argument *arg1 = Argument::getNth(f->parameters, 1); | |
| 600 if (arg1->defaultArg) | |
| 601 goto Lassignerr; | |
| 602 } | |
| 603 } | |
| 604 } | |
| 605 | |
| 606 Ldone: | |
| 607 /* Save scope for possible later use (if we need the | |
| 608 * function internals) | |
| 609 */ | |
| 610 scope = new Scope(*sc); | |
| 611 scope->setNoFree(); | |
| 612 return; | |
| 613 | |
| 614 Lassignerr: | |
| 615 error("identity assignment operator overload is illegal"); | |
| 616 } | |
| 617 | |
| 618 void FuncDeclaration::semantic2(Scope *sc) | |
| 619 { | |
| 620 } | |
| 621 | |
| 622 // Do the semantic analysis on the internals of the function. | |
| 623 | |
| 624 void FuncDeclaration::semantic3(Scope *sc) | |
| 625 { TypeFunction *f; | |
| 626 AggregateDeclaration *ad; | |
| 627 VarDeclaration *argptr = NULL; | |
| 628 VarDeclaration *_arguments = NULL; | |
| 629 | |
| 630 if (!parent) | |
| 631 { | |
| 632 if (global.errors) | |
| 633 return; | |
| 634 //printf("FuncDeclaration::semantic3(%s '%s', sc = %p)\n", kind(), toChars(), sc); | |
| 635 assert(0); | |
| 636 } | |
| 637 //printf("FuncDeclaration::semantic3('%s.%s', sc = %p, loc = %s)\n", parent->toChars(), toChars(), sc, loc.toChars()); | |
| 638 //fflush(stdout); | |
| 639 //{ static int x; if (++x == 2) *(char*)0=0; } | |
| 640 //printf("\tlinkage = %d\n", sc->linkage); | |
| 641 | |
| 642 //printf(" sc->incontract = %d\n", sc->incontract); | |
| 643 if (semanticRun) | |
| 644 return; | |
| 645 semanticRun = 1; | |
| 646 | |
| 647 if (!type || type->ty != Tfunction) | |
| 648 return; | |
| 649 f = (TypeFunction *)(type); | |
| 650 size_t nparams = Argument::dim(f->parameters); | |
| 651 | |
| 652 // Check the 'throws' clause | |
| 653 if (fthrows) | |
|
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654 { |
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655 for (int i = 0; i < fthrows->dim; i++) |
| 159 | 656 { |
| 657 Type *t = (Type *)fthrows->data[i]; | |
| 658 | |
| 659 t = t->semantic(loc, sc); | |
| 660 if (!t->isClassHandle()) | |
| 661 error("can only throw classes, not %s", t->toChars()); | |
| 662 } | |
| 663 } | |
| 664 | |
| 665 if (fbody || frequire) | |
| 666 { | |
| 667 /* Symbol table into which we place parameters and nested functions, | |
| 668 * solely to diagnose name collisions. | |
| 669 */ | |
| 670 localsymtab = new DsymbolTable(); | |
| 671 | |
| 672 // Establish function scope | |
| 673 ScopeDsymbol *ss = new ScopeDsymbol(); | |
| 674 ss->parent = sc->scopesym; | |
| 675 Scope *sc2 = sc->push(ss); | |
| 676 sc2->func = this; | |
| 677 sc2->parent = this; | |
| 678 sc2->callSuper = 0; | |
| 679 sc2->sbreak = NULL; | |
| 680 sc2->scontinue = NULL; | |
| 681 sc2->sw = NULL; | |
| 682 sc2->fes = fes; | |
| 683 sc2->linkage = LINKd; | |
| 684 sc2->stc &= ~(STCauto | STCscope | STCstatic | STCabstract | STCdeprecated | STCfinal); | |
| 685 sc2->protection = PROTpublic; | |
| 686 sc2->explicitProtection = 0; | |
| 687 sc2->structalign = 8; | |
| 688 sc2->incontract = 0; | |
|
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689 sc2->enclosingFinally = NULL; |
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690 sc2->enclosingScopeExit = NULL; |
| 159 | 691 sc2->noctor = 0; |
| 692 | |
| 693 // Declare 'this' | |
| 694 ad = isThis(); | |
| 695 if (ad) | |
| 696 { VarDeclaration *v; | |
| 697 | |
| 698 if (isFuncLiteralDeclaration() && isNested()) | |
| 699 { | |
| 700 error("literals cannot be class members"); | |
| 701 return; | |
| 702 } | |
| 703 else | |
| 704 { | |
| 705 assert(!isNested()); // can't be both member and nested | |
| 706 assert(ad->handle); | |
| 707 v = new ThisDeclaration(ad->handle); | |
| 708 v->storage_class |= STCparameter | STCin; | |
| 709 v->semantic(sc2); | |
| 710 if (!sc2->insert(v)) | |
| 711 assert(0); | |
| 712 v->parent = this; | |
| 713 vthis = v; | |
| 714 } | |
| 715 } | |
| 716 else if (isNested()) | |
| 717 { | |
|
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718 /* The 'this' for a nested function is the link to the |
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719 * enclosing function's stack frame. |
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720 * Note that nested functions and member functions are disjoint. |
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721 */ |
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|
722 VarDeclaration *v = new ThisDeclaration(Type::tvoid->pointerTo()); |
| 159 | 723 v->storage_class |= STCparameter | STCin; |
| 724 v->semantic(sc2); | |
| 725 if (!sc2->insert(v)) | |
| 726 assert(0); | |
| 727 v->parent = this; | |
| 728 vthis = v; | |
| 729 } | |
| 730 | |
| 731 // Declare hidden variable _arguments[] and _argptr | |
| 732 if (f->varargs == 1) | |
| 733 { Type *t; | |
| 734 | |
| 735 if (f->linkage == LINKd) | |
| 736 { // Declare _arguments[] | |
| 737 #if BREAKABI | |
| 738 v_arguments = new VarDeclaration(0, Type::typeinfotypelist->type, Id::_arguments_typeinfo, NULL); | |
| 739 v_arguments->storage_class = STCparameter | STCin; | |
| 740 v_arguments->semantic(sc2); | |
| 741 sc2->insert(v_arguments); | |
| 742 v_arguments->parent = this; | |
| 743 | |
| 744 t = Type::typeinfo->type->arrayOf(); | |
| 745 _arguments = new VarDeclaration(0, t, Id::_arguments, NULL); | |
| 746 _arguments->semantic(sc2); | |
| 747 sc2->insert(_arguments); | |
| 748 _arguments->parent = this; | |
| 749 #else | |
| 750 t = Type::typeinfo->type->arrayOf(); | |
| 751 v_arguments = new VarDeclaration(0, t, Id::_arguments, NULL); | |
| 752 v_arguments->storage_class = STCparameter | STCin; | |
| 753 v_arguments->semantic(sc2); | |
| 754 sc2->insert(v_arguments); | |
| 755 v_arguments->parent = this; | |
| 756 #endif | |
| 757 } | |
| 758 if (f->linkage == LINKd || (parameters && parameters->dim)) | |
| 759 { // Declare _argptr | |
| 760 #if IN_GCC | |
| 761 t = d_gcc_builtin_va_list_d_type; | |
| 762 #else | |
| 763 t = Type::tvoid->pointerTo(); | |
| 764 #endif | |
| 765 argptr = new VarDeclaration(0, t, Id::_argptr, NULL); | |
| 766 argptr->semantic(sc2); | |
| 767 sc2->insert(argptr); | |
| 768 argptr->parent = this; | |
| 769 } | |
| 770 } | |
| 771 | |
|
1177
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772 #if IN_LLVM |
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|
773 // LDC make sure argument type is semanticed. |
|
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774 // Turns TypeTuple!(int, int) into two int parameters, for instance. |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
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|
775 if (f->parameters) |
|
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776 { |
|
a8b9fc41c34b
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|
777 for (size_t i = 0; i < Argument::dim(f->parameters); i++) |
|
a8b9fc41c34b
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778 { Argument *arg = (Argument *)Argument::getNth(f->parameters, i); |
|
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779 Type* nw = arg->type->semantic(0, sc); |
|
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780 if (arg->type != nw) { |
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|
781 arg->type = nw; |
|
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782 // Examine this index again. |
|
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783 // This is important if it turned into a tuple. |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
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parents:
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|
784 // In particular, the empty tuple should be handled or the |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
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|
785 // next parameter will be skipped. |
|
a8b9fc41c34b
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parents:
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|
786 // FIXME: Maybe we only need to do this for tuples, |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
Frits van Bommel <fvbommel wxs.nl>
parents:
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787 // and can add tuple.length after decrement? |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
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|
788 i--; |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
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parents:
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|
789 } |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
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parents:
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|
790 } |
|
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Fix #246 by running type->semantic() on parameters so tuples are expanded.
Frits van Bommel <fvbommel wxs.nl>
parents:
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changeset
|
791 // update nparams to include expanded tuples |
|
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Fix #246 by running type->semantic() on parameters so tuples are expanded.
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parents:
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changeset
|
792 nparams = Argument::dim(f->parameters); |
|
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Fix #246 by running type->semantic() on parameters so tuples are expanded.
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|
793 } |
|
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parents:
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diff
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|
794 #endif |
|
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parents:
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diff
changeset
|
795 |
| 159 | 796 // Propagate storage class from tuple parameters to their element-parameters. |
| 797 if (f->parameters) | |
| 798 { | |
| 799 for (size_t i = 0; i < f->parameters->dim; i++) | |
| 800 { Argument *arg = (Argument *)f->parameters->data[i]; | |
| 801 | |
| 802 if (arg->type->ty == Ttuple) | |
| 803 { TypeTuple *t = (TypeTuple *)arg->type; | |
| 804 size_t dim = Argument::dim(t->arguments); | |
| 805 for (size_t j = 0; j < dim; j++) | |
| 806 { Argument *narg = Argument::getNth(t->arguments, j); | |
| 807 narg->storageClass = arg->storageClass; | |
| 808 } | |
| 809 } | |
| 810 } | |
| 811 } | |
| 812 | |
| 813 // Declare all the function parameters as variables | |
| 814 if (nparams) | |
| 815 { /* parameters[] has all the tuples removed, as the back end | |
| 816 * doesn't know about tuples | |
| 817 */ | |
| 818 parameters = new Dsymbols(); | |
| 819 parameters->reserve(nparams); | |
| 820 for (size_t i = 0; i < nparams; i++) | |
| 821 { | |
| 822 Argument *arg = Argument::getNth(f->parameters, i); | |
| 823 Identifier *id = arg->ident; | |
| 824 if (!id) | |
| 825 { | |
| 826 /* Generate identifier for un-named parameter, | |
| 827 * because we need it later on. | |
| 828 */ | |
|
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Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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|
829 arg->ident = id = Identifier::generateId("_param_", i); |
| 159 | 830 } |
| 831 VarDeclaration *v = new VarDeclaration(loc, arg->type, id, NULL); | |
| 832 //printf("declaring parameter %s of type %s\n", v->toChars(), v->type->toChars()); | |
| 833 v->storage_class |= STCparameter; | |
| 834 if (f->varargs == 2 && i + 1 == nparams) | |
| 835 v->storage_class |= STCvariadic; | |
| 836 v->storage_class |= arg->storageClass & (STCin | STCout | STCref | STClazy); | |
| 837 if (v->storage_class & STClazy) | |
| 838 v->storage_class |= STCin; | |
| 839 v->semantic(sc2); | |
| 840 if (!sc2->insert(v)) | |
| 841 error("parameter %s.%s is already defined", toChars(), v->toChars()); | |
| 842 else | |
| 843 parameters->push(v); | |
| 844 localsymtab->insert(v); | |
| 845 v->parent = this; | |
| 846 } | |
| 847 } | |
| 848 | |
| 849 // Declare the tuple symbols and put them in the symbol table, | |
| 850 // but not in parameters[]. | |
| 851 if (f->parameters) | |
| 852 { | |
| 853 for (size_t i = 0; i < f->parameters->dim; i++) | |
| 854 { Argument *arg = (Argument *)f->parameters->data[i]; | |
| 855 | |
| 856 if (!arg->ident) | |
| 857 continue; // never used, so ignore | |
| 858 if (arg->type->ty == Ttuple) | |
| 859 { TypeTuple *t = (TypeTuple *)arg->type; | |
| 860 size_t dim = Argument::dim(t->arguments); | |
| 861 Objects *exps = new Objects(); | |
| 862 exps->setDim(dim); | |
| 863 for (size_t j = 0; j < dim; j++) | |
| 864 { Argument *narg = Argument::getNth(t->arguments, j); | |
| 865 assert(narg->ident); | |
| 866 VarDeclaration *v = sc2->search(0, narg->ident, NULL)->isVarDeclaration(); | |
| 867 assert(v); | |
|
510
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parents:
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diff
changeset
|
868 Expression *e = new VarExp(v->loc, v); |
| 159 | 869 exps->data[j] = (void *)e; |
| 870 } | |
| 871 assert(arg->ident); | |
|
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Merged DMD 1.034, array operations are not yet implemented ;)
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changeset
|
872 TupleDeclaration *v = new TupleDeclaration(loc, arg->ident, exps); |
| 159 | 873 //printf("declaring tuple %s\n", v->toChars()); |
| 874 v->isexp = 1; | |
| 875 if (!sc2->insert(v)) | |
| 876 error("parameter %s.%s is already defined", toChars(), v->toChars()); | |
| 877 localsymtab->insert(v); | |
| 878 v->parent = this; | |
| 879 } | |
| 880 } | |
| 881 } | |
| 882 | |
| 883 /* Do the semantic analysis on the [in] preconditions and | |
| 884 * [out] postconditions. | |
| 885 */ | |
| 886 sc2->incontract++; | |
| 887 | |
| 888 if (frequire) | |
| 889 { /* frequire is composed of the [in] contracts | |
| 890 */ | |
| 891 // BUG: need to error if accessing out parameters | |
| 892 // BUG: need to treat parameters as const | |
| 893 // BUG: need to disallow returns and throws | |
| 894 // BUG: verify that all in and ref parameters are read | |
| 895 frequire = frequire->semantic(sc2); | |
| 896 labtab = NULL; // so body can't refer to labels | |
| 897 } | |
| 898 | |
| 899 if (fensure || addPostInvariant()) | |
| 900 { /* fensure is composed of the [out] contracts | |
| 901 */ | |
| 902 ScopeDsymbol *sym = new ScopeDsymbol(); | |
| 903 sym->parent = sc2->scopesym; | |
| 904 sc2 = sc2->push(sym); | |
| 905 | |
| 906 assert(type->nextOf()); | |
| 907 if (type->nextOf()->ty == Tvoid) | |
| 908 { | |
| 909 if (outId) | |
| 910 error("void functions have no result"); | |
| 911 } | |
| 912 else | |
| 913 { | |
| 914 if (!outId) | |
| 915 outId = Id::result; // provide a default | |
| 916 } | |
| 917 | |
| 918 if (outId) | |
| 919 { // Declare result variable | |
| 920 VarDeclaration *v; | |
| 921 Loc loc = this->loc; | |
| 922 | |
| 923 if (fensure) | |
| 924 loc = fensure->loc; | |
| 925 | |
| 926 v = new VarDeclaration(loc, type->nextOf(), outId, NULL); | |
| 927 v->noauto = 1; | |
| 928 sc2->incontract--; | |
| 929 v->semantic(sc2); | |
| 930 sc2->incontract++; | |
| 931 if (!sc2->insert(v)) | |
| 932 error("out result %s is already defined", v->toChars()); | |
| 933 v->parent = this; | |
| 934 vresult = v; | |
| 935 | |
| 936 // vresult gets initialized with the function return value | |
| 937 // in ReturnStatement::semantic() | |
| 938 } | |
| 939 | |
| 940 // BUG: need to treat parameters as const | |
| 941 // BUG: need to disallow returns and throws | |
| 942 if (fensure) | |
| 943 { fensure = fensure->semantic(sc2); | |
| 944 labtab = NULL; // so body can't refer to labels | |
| 945 } | |
| 946 | |
| 947 if (!global.params.useOut) | |
| 948 { fensure = NULL; // discard | |
| 949 vresult = NULL; | |
| 950 } | |
| 951 | |
| 952 // Postcondition invariant | |
| 953 if (addPostInvariant()) | |
| 954 { | |
| 955 Expression *e = NULL; | |
| 956 if (isCtorDeclaration()) | |
| 957 { | |
| 958 // Call invariant directly only if it exists | |
| 959 InvariantDeclaration *inv = ad->inv; | |
| 960 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 961 | |
| 962 while (!inv && cd) | |
| 963 { | |
| 964 cd = cd->baseClass; | |
| 965 if (!cd) | |
| 966 break; | |
| 967 inv = cd->inv; | |
| 968 } | |
| 969 if (inv) | |
| 970 { | |
| 971 e = new DsymbolExp(0, inv); | |
| 972 e = new CallExp(0, e); | |
| 973 e = e->semantic(sc2); | |
| 974 } | |
| 975 } | |
| 976 else | |
| 977 { // Call invariant virtually | |
| 978 ThisExp *v = new ThisExp(0); | |
| 979 v->type = vthis->type; | |
| 980 e = new AssertExp(0, v); | |
| 981 } | |
| 982 if (e) | |
| 983 { | |
| 984 ExpStatement *s = new ExpStatement(0, e); | |
| 985 if (fensure) | |
| 986 fensure = new CompoundStatement(0, s, fensure); | |
| 987 else | |
| 988 fensure = s; | |
| 989 } | |
| 990 } | |
| 991 | |
| 992 if (fensure) | |
| 993 { returnLabel = new LabelDsymbol(Id::returnLabel); | |
| 994 LabelStatement *ls = new LabelStatement(0, Id::returnLabel, fensure); | |
| 995 ls->isReturnLabel = 1; | |
| 996 returnLabel->statement = ls; | |
| 997 } | |
| 998 sc2 = sc2->pop(); | |
| 999 } | |
| 1000 | |
| 1001 sc2->incontract--; | |
| 1002 | |
| 1003 if (fbody) | |
| 1004 { ClassDeclaration *cd = isClassMember(); | |
| 1005 | |
| 1006 /* If this is a class constructor | |
| 1007 */ | |
| 1008 if (isCtorDeclaration() && cd) | |
| 1009 { | |
| 1010 for (int i = 0; i < cd->fields.dim; i++) | |
| 1011 { VarDeclaration *v = (VarDeclaration *)cd->fields.data[i]; | |
| 1012 | |
| 1013 v->ctorinit = 0; | |
| 1014 } | |
| 1015 } | |
| 1016 | |
| 1017 if (inferRetType || f->retStyle() != RETstack) | |
| 1018 nrvo_can = 0; | |
| 1019 | |
| 1020 fbody = fbody->semantic(sc2); | |
| 1021 | |
| 1022 if (inferRetType) | |
| 1023 { // If no return type inferred yet, then infer a void | |
| 1024 if (!type->nextOf()) | |
| 1025 { | |
| 1026 ((TypeFunction *)type)->next = Type::tvoid; | |
| 1027 type = type->semantic(loc, sc); | |
| 1028 } | |
| 1029 f = (TypeFunction *)type; | |
| 1030 } | |
| 1031 | |
| 336 | 1032 int offend = fbody ? fbody->blockExit() & BEfallthru : TRUE; |
| 159 | 1033 |
| 1034 if (isStaticCtorDeclaration()) | |
| 1035 { /* It's a static constructor. Ensure that all | |
| 1036 * ctor consts were initialized. | |
| 1037 */ | |
| 1038 | |
| 1039 Dsymbol *p = toParent(); | |
| 1040 ScopeDsymbol *ad = p->isScopeDsymbol(); | |
| 1041 if (!ad) | |
| 1042 { | |
| 1043 error("static constructor can only be member of struct/class/module, not %s %s", p->kind(), p->toChars()); | |
| 1044 } | |
| 1045 else | |
| 1046 { | |
| 1047 for (int i = 0; i < ad->members->dim; i++) | |
| 1048 { Dsymbol *s = (Dsymbol *)ad->members->data[i]; | |
| 1049 | |
| 1050 s->checkCtorConstInit(); | |
| 1051 } | |
| 1052 } | |
| 1053 } | |
| 1054 | |
| 1055 if (isCtorDeclaration() && cd) | |
| 1056 { | |
| 1057 //printf("callSuper = x%x\n", sc2->callSuper); | |
| 1058 | |
| 1059 // Verify that all the ctorinit fields got initialized | |
| 1060 if (!(sc2->callSuper & CSXthis_ctor)) | |
| 1061 { | |
| 1062 for (int i = 0; i < cd->fields.dim; i++) | |
| 1063 { VarDeclaration *v = (VarDeclaration *)cd->fields.data[i]; | |
| 1064 | |
| 1065 if (v->ctorinit == 0 && v->isCtorinit()) | |
| 1066 error("missing initializer for const field %s", v->toChars()); | |
| 1067 } | |
| 1068 } | |
| 1069 | |
| 1070 if (!(sc2->callSuper & CSXany_ctor) && | |
| 1071 cd->baseClass && cd->baseClass->ctor) | |
| 1072 { | |
| 1073 sc2->callSuper = 0; | |
| 1074 | |
| 1075 // Insert implicit super() at start of fbody | |
| 1076 Expression *e1 = new SuperExp(0); | |
| 1077 Expression *e = new CallExp(0, e1); | |
| 1078 | |
| 1079 unsigned errors = global.errors; | |
| 1080 global.gag++; | |
| 1081 e = e->semantic(sc2); | |
| 1082 global.gag--; | |
| 1083 if (errors != global.errors) | |
| 1084 error("no match for implicit super() call in constructor"); | |
| 1085 | |
| 1086 Statement *s = new ExpStatement(0, e); | |
| 1087 fbody = new CompoundStatement(0, s, fbody); | |
| 1088 } | |
| 1089 } | |
| 1090 else if (fes) | |
| 1091 { // For foreach(){} body, append a return 0; | |
| 1092 Expression *e = new IntegerExp(0); | |
| 1093 Statement *s = new ReturnStatement(0, e); | |
| 1094 fbody = new CompoundStatement(0, fbody, s); | |
| 1095 assert(!returnLabel); | |
| 1096 } | |
| 1097 else if (!hasReturnExp && type->nextOf()->ty != Tvoid) | |
| 1098 error("expected to return a value of type %s", type->nextOf()->toChars()); | |
| 1099 else if (!inlineAsm) | |
| 1100 { | |
| 1101 if (type->nextOf()->ty == Tvoid) | |
| 1102 { | |
| 1103 if (offend && isMain()) | |
| 1104 { // Add a return 0; statement | |
| 1105 Statement *s = new ReturnStatement(0, new IntegerExp(0)); | |
| 1106 fbody = new CompoundStatement(0, fbody, s); | |
| 1107 } | |
| 1108 } | |
| 1109 else | |
| 1110 { | |
| 1111 if (offend) | |
| 1112 { Expression *e; | |
| 1113 | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
957
diff
changeset
|
1114 warning(loc, "no return at end of function"); |
| 159 | 1115 |
| 1116 if (global.params.useAssert && | |
| 1117 !global.params.useInline) | |
| 1118 { /* Add an assert(0, msg); where the missing return | |
| 1119 * should be. | |
| 1120 */ | |
| 1121 e = new AssertExp( | |
| 1122 endloc, | |
| 1123 new IntegerExp(0), | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
957
diff
changeset
|
1124 new StringExp(loc, (char *)"missing return expression") |
| 159 | 1125 ); |
| 1126 } | |
| 1127 else | |
| 1128 e = new HaltExp(endloc); | |
| 1129 e = new CommaExp(0, e, type->nextOf()->defaultInit()); | |
| 1130 e = e->semantic(sc2); | |
| 1131 Statement *s = new ExpStatement(0, e); | |
| 1132 fbody = new CompoundStatement(0, fbody, s); | |
| 1133 } | |
| 1134 } | |
| 1135 } | |
| 1136 } | |
| 1137 | |
| 1138 { | |
| 1139 Statements *a = new Statements(); | |
| 1140 | |
| 1141 // Merge in initialization of 'out' parameters | |
| 1142 if (parameters) | |
| 1143 { for (size_t i = 0; i < parameters->dim; i++) | |
| 1144 { | |
| 1145 VarDeclaration *v = (VarDeclaration *)parameters->data[i]; | |
| 1146 if (v->storage_class & STCout) | |
| 1147 { | |
| 1148 assert(v->init); | |
| 1149 ExpInitializer *ie = v->init->isExpInitializer(); | |
| 1150 assert(ie); | |
| 1151 a->push(new ExpStatement(0, ie->exp)); | |
| 1152 } | |
| 1153 } | |
| 1154 } | |
| 1155 | |
| 1156 // we'll handle variadics ourselves | |
| 1157 #if !IN_LLVM | |
| 1158 if (argptr) | |
| 1159 { // Initialize _argptr to point past non-variadic arg | |
| 1160 #if IN_GCC | |
| 1161 // Handled in FuncDeclaration::toObjFile | |
| 1162 v_argptr = argptr; | |
| 1163 v_argptr->init = new VoidInitializer(loc); | |
| 1164 #else | |
| 1165 Expression *e1; | |
| 1166 Expression *e; | |
| 1167 Type *t = argptr->type; | |
| 1168 VarDeclaration *p; | |
| 1169 unsigned offset; | |
| 1170 | |
| 1171 e1 = new VarExp(0, argptr); | |
| 1172 if (parameters && parameters->dim) | |
| 1173 p = (VarDeclaration *)parameters->data[parameters->dim - 1]; | |
| 1174 else | |
| 1175 p = v_arguments; // last parameter is _arguments[] | |
| 1176 offset = p->type->size(); | |
| 1177 offset = (offset + 3) & ~3; // assume stack aligns on 4 | |
| 1178 e = new SymOffExp(0, p, offset); | |
| 1179 e = new AssignExp(0, e1, e); | |
| 1180 e->type = t; | |
| 1181 a->push(new ExpStatement(0, e)); | |
| 1182 #endif // IN_GCC | |
| 1183 } | |
| 1184 | |
| 1185 if (_arguments) | |
| 1186 { | |
| 1187 /* Advance to elements[] member of TypeInfo_Tuple with: | |
| 1188 * _arguments = v_arguments.elements; | |
| 1189 */ | |
| 1190 Expression *e = new VarExp(0, v_arguments); | |
| 1191 e = new DotIdExp(0, e, Id::elements); | |
| 1192 Expression *e1 = new VarExp(0, _arguments); | |
| 1193 e = new AssignExp(0, e1, e); | |
| 1194 e = e->semantic(sc); | |
| 1195 a->push(new ExpStatement(0, e)); | |
| 1196 } | |
| 1197 | |
| 1198 #endif // !IN_LLVM | |
| 1199 | |
| 1200 // Merge contracts together with body into one compound statement | |
| 1201 | |
| 1202 #ifdef _DH | |
| 1203 if (frequire && global.params.useIn) | |
| 1204 { frequire->incontract = 1; | |
| 1205 a->push(frequire); | |
| 1206 } | |
| 1207 #else | |
| 1208 if (frequire && global.params.useIn) | |
| 1209 a->push(frequire); | |
| 1210 #endif | |
| 1211 | |
| 1212 // Precondition invariant | |
| 1213 if (addPreInvariant()) | |
| 1214 { | |
| 1215 Expression *e = NULL; | |
| 1216 if (isDtorDeclaration()) | |
| 1217 { | |
| 1218 // Call invariant directly only if it exists | |
| 1219 InvariantDeclaration *inv = ad->inv; | |
| 1220 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 1221 | |
| 1222 while (!inv && cd) | |
| 1223 { | |
| 1224 cd = cd->baseClass; | |
| 1225 if (!cd) | |
| 1226 break; | |
| 1227 inv = cd->inv; | |
| 1228 } | |
| 1229 if (inv) | |
| 1230 { | |
| 1231 e = new DsymbolExp(0, inv); | |
| 1232 e = new CallExp(0, e); | |
| 1233 e = e->semantic(sc2); | |
| 1234 } | |
| 1235 } | |
| 1236 else | |
| 1237 { // Call invariant virtually | |
| 1238 ThisExp *v = new ThisExp(0); | |
| 1239 v->type = vthis->type; | |
| 1240 Expression *se = new StringExp(0, "null this"); | |
| 1241 se = se->semantic(sc); | |
| 1242 se->type = Type::tchar->arrayOf(); | |
| 1243 e = new AssertExp(loc, v, se); | |
| 1244 } | |
| 1245 if (e) | |
| 1246 { | |
| 1247 ExpStatement *s = new ExpStatement(0, e); | |
| 1248 a->push(s); | |
| 1249 } | |
| 1250 } | |
| 1251 | |
| 1252 if (fbody) | |
| 1253 a->push(fbody); | |
| 1254 | |
| 1255 if (fensure) | |
| 1256 { | |
| 1257 a->push(returnLabel->statement); | |
| 1258 | |
| 1259 if (type->nextOf()->ty != Tvoid) | |
| 1260 { | |
| 1261 // Create: return vresult; | |
| 1262 assert(vresult); | |
| 1263 Expression *e = new VarExp(0, vresult); | |
| 1264 if (tintro) | |
| 1265 { e = e->implicitCastTo(sc, tintro->nextOf()); | |
| 1266 e = e->semantic(sc); | |
| 1267 } | |
| 1268 ReturnStatement *s = new ReturnStatement(0, e); | |
| 1269 a->push(s); | |
| 1270 } | |
| 1271 } | |
| 1272 | |
| 1273 fbody = new CompoundStatement(0, a); | |
|
1141
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1274 |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1275 // wrap body of synchronized functions in a synchronized statement |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1276 if (isSynchronized()) |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1277 { |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1278 ClassDeclaration *cd = parent->isClassDeclaration(); |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1279 if (!cd) |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1280 error("synchronized function %s must be a member of a class", toChars()); |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1281 |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1282 Expression *sync; |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1283 if (isStatic()) |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1284 { |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1285 // static member functions synchronize on classinfo |
|
1143
b28a57f4b530
Fix to synchronized function storage class when getting the classinfo via dotExp.
Christian Kamm <kamm incasoftware de>
parents:
1141
diff
changeset
|
1286 sync = cd->type->dotExp(sc2, new TypeExp(loc, cd->type), Id::classinfo); |
|
1141
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1287 } |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1288 else |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1289 { |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1290 // non-static member functions synchronize on this |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1291 sync = new VarExp(loc, vthis); |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1292 } |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1293 |
|
1158
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1294 // we do not want to rerun semantics on the whole function, so we |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1295 // manually adjust all labels in the function that currently don't |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1296 // have an enclosingScopeExit to use the new SynchronizedStatement |
|
1141
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1297 SynchronizedStatement* s = new SynchronizedStatement(loc, sync, NULL); |
|
f99a3b393c03
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Christian Kamm <kamm incasoftware de>
parents:
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diff
changeset
|
1298 s->semantic(sc2); |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
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parents:
1133
diff
changeset
|
1299 s->body = fbody; |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
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parents:
1133
diff
changeset
|
1300 |
|
1158
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1301 // LDC |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1302 LabelMap::iterator it, end = labmap.end(); |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1303 for (it = labmap.begin(); it != end; ++it) |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1304 if (it->second->enclosingScopeExit == NULL) |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1305 it->second->enclosingScopeExit = s; |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1306 |
|
1141
f99a3b393c03
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Christian Kamm <kamm incasoftware de>
parents:
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diff
changeset
|
1307 a = new Statements; |
|
f99a3b393c03
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Christian Kamm <kamm incasoftware de>
parents:
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diff
changeset
|
1308 a->push(s); |
|
f99a3b393c03
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Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1309 fbody = new CompoundStatement(0, a); |
|
f99a3b393c03
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Christian Kamm <kamm incasoftware de>
parents:
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diff
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|
1310 } |
| 159 | 1311 } |
| 1312 | |
| 1313 sc2->callSuper = 0; | |
| 1314 sc2->pop(); | |
| 1315 } | |
| 1316 semanticRun = 2; | |
| 1317 } | |
| 1318 | |
| 1319 void FuncDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1320 { | |
| 1321 //printf("FuncDeclaration::toCBuffer() '%s'\n", toChars()); | |
| 1322 | |
| 1323 type->toCBuffer(buf, ident, hgs); | |
| 1324 bodyToCBuffer(buf, hgs); | |
| 1325 } | |
| 1326 | |
| 1327 | |
| 1328 void FuncDeclaration::bodyToCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1329 { | |
| 1330 if (fbody && | |
| 1331 (!hgs->hdrgen || hgs->tpltMember || canInline(1,1)) | |
| 1332 ) | |
| 1333 { buf->writenl(); | |
| 1334 | |
| 1335 // in{} | |
| 1336 if (frequire) | |
| 1337 { buf->writestring("in"); | |
| 1338 buf->writenl(); | |
| 1339 frequire->toCBuffer(buf, hgs); | |
| 1340 } | |
| 1341 | |
| 1342 // out{} | |
| 1343 if (fensure) | |
| 1344 { buf->writestring("out"); | |
| 1345 if (outId) | |
| 1346 { buf->writebyte('('); | |
| 1347 buf->writestring(outId->toChars()); | |
| 1348 buf->writebyte(')'); | |
| 1349 } | |
| 1350 buf->writenl(); | |
| 1351 fensure->toCBuffer(buf, hgs); | |
| 1352 } | |
| 1353 | |
| 1354 if (frequire || fensure) | |
| 1355 { buf->writestring("body"); | |
| 1356 buf->writenl(); | |
| 1357 } | |
| 1358 | |
| 1359 buf->writebyte('{'); | |
| 1360 buf->writenl(); | |
| 1361 fbody->toCBuffer(buf, hgs); | |
| 1362 buf->writebyte('}'); | |
| 1363 buf->writenl(); | |
| 1364 } | |
| 1365 else | |
| 1366 { buf->writeByte(';'); | |
| 1367 buf->writenl(); | |
| 1368 } | |
| 1369 } | |
| 1370 | |
| 1371 /**************************************************** | |
| 1372 * Determine if 'this' overrides fd. | |
| 1373 * Return !=0 if it does. | |
| 1374 */ | |
| 1375 | |
| 1376 int FuncDeclaration::overrides(FuncDeclaration *fd) | |
| 1377 { int result = 0; | |
| 1378 | |
| 1379 if (fd->ident == ident) | |
| 1380 { | |
| 1381 int cov = type->covariant(fd->type); | |
| 1382 if (cov) | |
| 1383 { ClassDeclaration *cd1 = toParent()->isClassDeclaration(); | |
| 1384 ClassDeclaration *cd2 = fd->toParent()->isClassDeclaration(); | |
| 1385 | |
| 1386 if (cd1 && cd2 && cd2->isBaseOf(cd1, NULL)) | |
| 1387 result = 1; | |
| 1388 } | |
| 1389 } | |
| 1390 return result; | |
| 1391 } | |
| 1392 | |
| 1393 /************************************************* | |
| 1394 * Find index of function in vtbl[0..dim] that | |
| 1395 * this function overrides. | |
| 1396 * Returns: | |
| 1397 * -1 didn't find one | |
| 1398 * -2 can't determine because of forward references | |
| 1399 */ | |
| 1400 | |
| 1401 int FuncDeclaration::findVtblIndex(Array *vtbl, int dim) | |
| 1402 { | |
| 1403 for (int vi = 0; vi < dim; vi++) | |
| 1404 { | |
| 1405 FuncDeclaration *fdv = ((Dsymbol *)vtbl->data[vi])->isFuncDeclaration(); | |
| 1406 if (fdv && fdv->ident == ident) | |
| 1407 { | |
| 1408 int cov = type->covariant(fdv->type); | |
| 1409 //printf("\tbaseclass cov = %d\n", cov); | |
| 1410 switch (cov) | |
| 1411 { | |
| 1412 case 0: // types are distinct | |
| 1413 break; | |
| 1414 | |
| 1415 case 1: | |
| 1416 return vi; | |
| 1417 | |
| 1418 case 2: | |
| 1419 //type->print(); | |
| 1420 //fdv->type->print(); | |
| 1421 //printf("%s %s\n", type->deco, fdv->type->deco); | |
| 1422 error("of type %s overrides but is not covariant with %s of type %s", | |
| 1423 type->toChars(), fdv->toPrettyChars(), fdv->type->toChars()); | |
| 1424 break; | |
| 1425 | |
| 1426 case 3: | |
| 1427 return -2; // forward references | |
| 1428 | |
| 1429 default: | |
| 1430 assert(0); | |
| 1431 } | |
| 1432 } | |
| 1433 } | |
| 1434 return -1; | |
| 1435 } | |
| 1436 | |
| 1437 /**************************************************** | |
| 1438 * Overload this FuncDeclaration with the new one f. | |
| 1439 * Return !=0 if successful; i.e. no conflict. | |
| 1440 */ | |
| 1441 | |
| 1442 int FuncDeclaration::overloadInsert(Dsymbol *s) | |
| 1443 { | |
| 1444 FuncDeclaration *f; | |
| 1445 AliasDeclaration *a; | |
| 1446 | |
| 1447 //printf("FuncDeclaration::overloadInsert(%s)\n", s->toChars()); | |
| 1448 a = s->isAliasDeclaration(); | |
| 1449 if (a) | |
| 1450 { | |
| 1451 if (overnext) | |
| 1452 return overnext->overloadInsert(a); | |
| 1453 if (!a->aliassym && a->type->ty != Tident && a->type->ty != Tinstance) | |
| 1454 { | |
| 1455 //printf("\ta = '%s'\n", a->type->toChars()); | |
| 1456 return FALSE; | |
| 1457 } | |
| 1458 overnext = a; | |
| 1459 //printf("\ttrue: no conflict\n"); | |
| 1460 return TRUE; | |
| 1461 } | |
| 1462 f = s->isFuncDeclaration(); | |
| 1463 if (!f) | |
| 1464 return FALSE; | |
| 1465 | |
| 1466 if (type && f->type && // can be NULL for overloaded constructors | |
| 1467 f->type->covariant(type) && | |
| 1468 !isFuncAliasDeclaration()) | |
| 1469 { | |
| 1470 //printf("\tfalse: conflict %s\n", kind()); | |
| 1471 return FALSE; | |
| 1472 } | |
| 1473 | |
| 1474 if (overnext) | |
| 1475 return overnext->overloadInsert(f); | |
| 1476 overnext = f; | |
| 1477 //printf("\ttrue: no conflict\n"); | |
| 1478 return TRUE; | |
| 1479 } | |
| 1480 | |
| 1481 /******************************************** | |
| 1482 * Find function in overload list that exactly matches t. | |
| 1483 */ | |
| 1484 | |
| 1485 /*************************************************** | |
| 1486 * Visit each overloaded function in turn, and call | |
| 1487 * (*fp)(param, f) on it. | |
| 1488 * Exit when no more, or (*fp)(param, f) returns 1. | |
| 1489 * Returns: | |
| 1490 * 0 continue | |
| 1491 * 1 done | |
| 1492 */ | |
| 1493 | |
| 1494 int overloadApply(FuncDeclaration *fstart, | |
| 1495 int (*fp)(void *, FuncDeclaration *), | |
| 1496 void *param) | |
| 1497 { | |
| 1498 FuncDeclaration *f; | |
| 1499 Declaration *d; | |
| 1500 Declaration *next; | |
| 1501 | |
| 1502 for (d = fstart; d; d = next) | |
| 1503 { FuncAliasDeclaration *fa = d->isFuncAliasDeclaration(); | |
| 1504 | |
| 1505 if (fa) | |
| 1506 { | |
| 1507 if (overloadApply(fa->funcalias, fp, param)) | |
| 1508 return 1; | |
| 1509 next = fa->overnext; | |
| 1510 } | |
| 1511 else | |
| 1512 { | |
| 1513 AliasDeclaration *a = d->isAliasDeclaration(); | |
| 1514 | |
| 1515 if (a) | |
| 1516 { | |
| 1517 Dsymbol *s = a->toAlias(); | |
| 1518 next = s->isDeclaration(); | |
| 1519 if (next == a) | |
| 1520 break; | |
| 1521 if (next == fstart) | |
| 1522 break; | |
| 1523 } | |
| 1524 else | |
| 1525 { | |
| 1526 f = d->isFuncDeclaration(); | |
| 1527 if (!f) | |
| 1528 { d->error("is aliased to a function"); | |
| 1529 break; // BUG: should print error message? | |
| 1530 } | |
| 1531 if ((*fp)(param, f)) | |
| 1532 return 1; | |
| 1533 | |
| 1534 next = f->overnext; | |
| 1535 } | |
| 1536 } | |
| 1537 } | |
| 1538 return 0; | |
| 1539 } | |
| 1540 | |
| 1541 /******************************************** | |
| 1542 * Find function in overload list that exactly matches t. | |
| 1543 */ | |
| 1544 | |
| 1545 struct Param1 | |
| 1546 { | |
| 1547 Type *t; // type to match | |
| 1548 FuncDeclaration *f; // return value | |
| 1549 }; | |
| 1550 | |
| 1551 int fp1(void *param, FuncDeclaration *f) | |
| 1552 { Param1 *p = (Param1 *)param; | |
| 1553 Type *t = p->t; | |
| 1554 | |
| 1555 if (t->equals(f->type)) | |
| 1556 { p->f = f; | |
| 1557 return 1; | |
| 1558 } | |
| 1559 | |
| 336 | 1560 #if DMDV2 |
| 159 | 1561 /* Allow covariant matches, if it's just a const conversion |
| 1562 * of the return type | |
| 1563 */ | |
| 1564 if (t->ty == Tfunction) | |
| 1565 { TypeFunction *tf = (TypeFunction *)f->type; | |
| 1566 if (tf->covariant(t) == 1 && | |
| 1567 tf->nextOf()->implicitConvTo(t->nextOf()) >= MATCHconst) | |
| 1568 { | |
| 1569 p->f = f; | |
| 1570 return 1; | |
| 1571 } | |
| 1572 } | |
| 1573 #endif | |
| 1574 return 0; | |
| 1575 } | |
| 1576 | |
| 1577 FuncDeclaration *FuncDeclaration::overloadExactMatch(Type *t) | |
| 1578 { | |
| 1579 Param1 p; | |
| 1580 p.t = t; | |
| 1581 p.f = NULL; | |
| 1582 overloadApply(this, &fp1, &p); | |
| 1583 return p.f; | |
| 1584 } | |
| 1585 | |
| 1586 #if 0 | |
| 1587 FuncDeclaration *FuncDeclaration::overloadExactMatch(Type *t) | |
| 1588 { | |
| 1589 FuncDeclaration *f; | |
| 1590 Declaration *d; | |
| 1591 Declaration *next; | |
| 1592 | |
| 1593 for (d = this; d; d = next) | |
| 1594 { FuncAliasDeclaration *fa = d->isFuncAliasDeclaration(); | |
| 1595 | |
| 1596 if (fa) | |
| 1597 { | |
| 1598 FuncDeclaration *f2 = fa->funcalias->overloadExactMatch(t); | |
| 1599 if (f2) | |
| 1600 return f2; | |
| 1601 next = fa->overnext; | |
| 1602 } | |
| 1603 else | |
| 1604 { | |
| 1605 AliasDeclaration *a = d->isAliasDeclaration(); | |
| 1606 | |
| 1607 if (a) | |
| 1608 { | |
| 1609 Dsymbol *s = a->toAlias(); | |
| 1610 next = s->isDeclaration(); | |
| 1611 if (next == a) | |
| 1612 break; | |
| 1613 } | |
| 1614 else | |
| 1615 { | |
| 1616 f = d->isFuncDeclaration(); | |
| 1617 if (!f) | |
| 1618 break; // BUG: should print error message? | |
| 1619 if (t->equals(d->type)) | |
| 1620 return f; | |
| 1621 next = f->overnext; | |
| 1622 } | |
| 1623 } | |
| 1624 } | |
| 1625 return NULL; | |
| 1626 } | |
| 1627 #endif | |
| 1628 | |
| 1629 /******************************************** | |
| 1630 * Decide which function matches the arguments best. | |
| 1631 */ | |
| 1632 | |
| 1633 struct Param2 | |
| 1634 { | |
| 1635 Match *m; | |
| 1636 Expressions *arguments; | |
| 1637 }; | |
| 1638 | |
| 1639 int fp2(void *param, FuncDeclaration *f) | |
| 1640 { Param2 *p = (Param2 *)param; | |
| 1641 Match *m = p->m; | |
| 1642 Expressions *arguments = p->arguments; | |
| 1643 MATCH match; | |
| 1644 | |
| 1645 if (f != m->lastf) // skip duplicates | |
| 1646 { | |
| 1647 m->anyf = f; | |
|
510
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
1648 TypeFunction *tf = (TypeFunction *)f->type; |
| 159 | 1649 match = (MATCH) tf->callMatch(arguments); |
|
717
a26b0c5d5942
Merged DMD 1.036.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
703
diff
changeset
|
1650 //printf("1match = %d\n", match); |
| 159 | 1651 if (match != MATCHnomatch) |
| 1652 { | |
| 1653 if (match > m->last) | |
| 1654 goto LfIsBetter; | |
| 1655 | |
| 1656 if (match < m->last) | |
| 1657 goto LlastIsBetter; | |
| 1658 | |
| 1659 /* See if one of the matches overrides the other. | |
| 1660 */ | |
| 1661 if (m->lastf->overrides(f)) | |
| 1662 goto LlastIsBetter; | |
| 1663 else if (f->overrides(m->lastf)) | |
| 1664 goto LfIsBetter; | |
| 1665 | |
| 1666 Lambiguous: | |
| 1667 m->nextf = f; | |
| 1668 m->count++; | |
| 1669 return 0; | |
| 1670 | |
| 1671 LfIsBetter: | |
| 1672 m->last = match; | |
| 1673 m->lastf = f; | |
| 1674 m->count = 1; | |
| 1675 return 0; | |
| 1676 | |
| 1677 LlastIsBetter: | |
| 1678 return 0; | |
| 1679 } | |
| 1680 } | |
| 1681 return 0; | |
| 1682 } | |
| 1683 | |
| 1684 | |
| 1685 void overloadResolveX(Match *m, FuncDeclaration *fstart, Expressions *arguments) | |
| 1686 { | |
| 1687 Param2 p; | |
| 1688 p.m = m; | |
| 1689 p.arguments = arguments; | |
| 1690 overloadApply(fstart, &fp2, &p); | |
| 1691 } | |
| 1692 | |
| 1693 #if 0 | |
| 1694 // Recursive helper function | |
| 1695 | |
| 1696 void overloadResolveX(Match *m, FuncDeclaration *fstart, Expressions *arguments) | |
| 1697 { | |
| 1698 MATCH match; | |
| 1699 Declaration *d; | |
| 1700 Declaration *next; | |
| 1701 | |
| 1702 for (d = fstart; d; d = next) | |
| 1703 { | |
| 1704 FuncDeclaration *f; | |
| 1705 FuncAliasDeclaration *fa; | |
| 1706 AliasDeclaration *a; | |
| 1707 | |
| 1708 fa = d->isFuncAliasDeclaration(); | |
| 1709 if (fa) | |
| 1710 { | |
| 1711 overloadResolveX(m, fa->funcalias, arguments); | |
| 1712 next = fa->overnext; | |
| 1713 } | |
| 1714 else if ((f = d->isFuncDeclaration()) != NULL) | |
| 1715 { | |
| 1716 next = f->overnext; | |
| 1717 if (f == m->lastf) | |
| 1718 continue; // skip duplicates | |
| 1719 else | |
| 1720 { | |
| 1721 TypeFunction *tf; | |
| 1722 | |
| 1723 m->anyf = f; | |
| 1724 tf = (TypeFunction *)f->type; | |
| 1725 match = (MATCH) tf->callMatch(arguments); | |
|
717
a26b0c5d5942
Merged DMD 1.036.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
703
diff
changeset
|
1726 //printf("2match = %d\n", match); |
| 159 | 1727 if (match != MATCHnomatch) |
| 1728 { | |
| 1729 if (match > m->last) | |
| 1730 goto LfIsBetter; | |
| 1731 | |
| 1732 if (match < m->last) | |
| 1733 goto LlastIsBetter; | |
| 1734 | |
| 1735 /* See if one of the matches overrides the other. | |
| 1736 */ | |
| 1737 if (m->lastf->overrides(f)) | |
| 1738 goto LlastIsBetter; | |
| 1739 else if (f->overrides(m->lastf)) | |
| 1740 goto LfIsBetter; | |
| 1741 | |
| 1742 Lambiguous: | |
| 1743 m->nextf = f; | |
| 1744 m->count++; | |
| 1745 continue; | |
| 1746 | |
| 1747 LfIsBetter: | |
| 1748 m->last = match; | |
| 1749 m->lastf = f; | |
| 1750 m->count = 1; | |
| 1751 continue; | |
| 1752 | |
| 1753 LlastIsBetter: | |
| 1754 continue; | |
| 1755 } | |
| 1756 } | |
| 1757 } | |
| 1758 else if ((a = d->isAliasDeclaration()) != NULL) | |
| 1759 { | |
| 1760 Dsymbol *s = a->toAlias(); | |
| 1761 next = s->isDeclaration(); | |
| 1762 if (next == a) | |
| 1763 break; | |
| 1764 if (next == fstart) | |
| 1765 break; | |
| 1766 } | |
| 1767 else | |
| 1768 { d->error("is aliased to a function"); | |
| 1769 break; | |
| 1770 } | |
| 1771 } | |
| 1772 } | |
| 1773 #endif | |
| 1774 | |
| 1775 FuncDeclaration *FuncDeclaration::overloadResolve(Loc loc, Expressions *arguments) | |
| 1776 { | |
| 1777 TypeFunction *tf; | |
| 1778 Match m; | |
| 1779 | |
| 1780 #if 0 | |
| 1781 printf("FuncDeclaration::overloadResolve('%s')\n", toChars()); | |
| 1782 if (arguments) | |
| 1783 { int i; | |
| 1784 | |
| 1785 for (i = 0; i < arguments->dim; i++) | |
| 1786 { Expression *arg; | |
| 1787 | |
| 1788 arg = (Expression *)arguments->data[i]; | |
| 1789 assert(arg->type); | |
| 1790 printf("\t%s: ", arg->toChars()); | |
| 1791 arg->type->print(); | |
| 1792 } | |
| 1793 } | |
| 1794 #endif | |
| 1795 | |
| 1796 memset(&m, 0, sizeof(m)); | |
| 1797 m.last = MATCHnomatch; | |
| 1798 overloadResolveX(&m, this, arguments); | |
| 1799 | |
| 1800 if (m.count == 1) // exactly one match | |
| 1801 { | |
| 1802 return m.lastf; | |
| 1803 } | |
| 1804 else | |
| 1805 { | |
| 1806 OutBuffer buf; | |
| 1807 | |
| 1808 if (arguments) | |
| 1809 { | |
| 1810 HdrGenState hgs; | |
| 1811 | |
| 1812 argExpTypesToCBuffer(&buf, arguments, &hgs); | |
| 1813 } | |
| 1814 | |
| 1815 if (m.last == MATCHnomatch) | |
| 1816 { | |
| 1817 tf = (TypeFunction *)type; | |
| 1818 | |
| 1819 //printf("tf = %s, args = %s\n", tf->deco, ((Expression *)arguments->data[0])->type->deco); | |
| 1820 error(loc, "%s does not match parameter types (%s)", | |
| 1821 Argument::argsTypesToChars(tf->parameters, tf->varargs), | |
| 1822 buf.toChars()); | |
| 1823 return m.anyf; // as long as it's not a FuncAliasDeclaration | |
| 1824 } | |
| 1825 else | |
| 1826 { | |
| 1827 #if 1 | |
| 1828 TypeFunction *t1 = (TypeFunction *)m.lastf->type; | |
| 1829 TypeFunction *t2 = (TypeFunction *)m.nextf->type; | |
| 1830 | |
| 1831 error(loc, "called with argument types:\n\t(%s)\nmatches both:\n\t%s%s\nand:\n\t%s%s", | |
| 1832 buf.toChars(), | |
| 1833 m.lastf->toPrettyChars(), Argument::argsTypesToChars(t1->parameters, t1->varargs), | |
| 1834 m.nextf->toPrettyChars(), Argument::argsTypesToChars(t2->parameters, t2->varargs)); | |
| 1835 #else | |
| 1836 error(loc, "overloads %s and %s both match argument list for %s", | |
| 1837 m.lastf->type->toChars(), | |
| 1838 m.nextf->type->toChars(), | |
| 1839 m.lastf->toChars()); | |
| 1840 #endif | |
| 1841 return m.lastf; | |
| 1842 } | |
| 1843 } | |
| 1844 } | |
| 1845 | |
| 1846 /******************************** | |
| 1847 * Labels are in a separate scope, one per function. | |
| 1848 */ | |
| 1849 | |
| 1850 LabelDsymbol *FuncDeclaration::searchLabel(Identifier *ident) | |
| 1851 { Dsymbol *s; | |
| 1852 | |
| 1853 if (!labtab) | |
| 1854 labtab = new DsymbolTable(); // guess we need one | |
| 1855 | |
| 1856 s = labtab->lookup(ident); | |
| 1857 if (!s) | |
| 1858 { | |
| 1859 s = new LabelDsymbol(ident); | |
| 1860 labtab->insert(s); | |
| 1861 } | |
| 1862 return (LabelDsymbol *)s; | |
| 1863 } | |
| 336 | 1864 |
| 159 | 1865 /**************************************** |
| 1866 * If non-static member function that has a 'this' pointer, | |
| 1867 * return the aggregate it is a member of. | |
| 1868 * Otherwise, return NULL. | |
| 1869 */ | |
| 1870 | |
| 1871 AggregateDeclaration *FuncDeclaration::isThis() | |
| 1872 { AggregateDeclaration *ad; | |
| 1873 | |
| 1874 //printf("+FuncDeclaration::isThis() '%s'\n", toChars()); | |
| 1875 ad = NULL; | |
| 1876 if ((storage_class & STCstatic) == 0) | |
| 1877 { | |
| 1878 ad = isMember2(); | |
| 1879 } | |
| 1880 //printf("-FuncDeclaration::isThis() %p\n", ad); | |
| 1881 return ad; | |
| 1882 } | |
| 1883 | |
| 1884 AggregateDeclaration *FuncDeclaration::isMember2() | |
| 1885 { AggregateDeclaration *ad; | |
| 1886 | |
| 1887 //printf("+FuncDeclaration::isMember2() '%s'\n", toChars()); | |
| 1888 ad = NULL; | |
| 1889 for (Dsymbol *s = this; s; s = s->parent) | |
| 1890 { | |
| 1891 //printf("\ts = '%s', parent = '%s', kind = %s\n", s->toChars(), s->parent->toChars(), s->parent->kind()); | |
| 1892 ad = s->isMember(); | |
| 1893 if (ad) | |
| 1894 { //printf("test4\n"); | |
| 1895 break; | |
| 1896 } | |
| 1897 if (!s->parent || | |
| 1898 (!s->parent->isTemplateInstance())) | |
| 1899 { //printf("test5\n"); | |
| 1900 break; | |
| 1901 } | |
| 1902 } | |
| 1903 //printf("-FuncDeclaration::isMember2() %p\n", ad); | |
| 1904 return ad; | |
| 1905 } | |
| 1906 | |
| 1907 /***************************************** | |
| 1908 * Determine lexical level difference from 'this' to nested function 'fd'. | |
| 1909 * Error if this cannot call fd. | |
| 1910 * Returns: | |
| 1911 * 0 same level | |
| 1912 * -1 increase nesting by 1 (fd is nested within 'this') | |
| 1913 * >0 decrease nesting by number | |
| 1914 */ | |
| 1915 | |
| 1916 int FuncDeclaration::getLevel(Loc loc, FuncDeclaration *fd) | |
| 1917 { int level; | |
| 1918 Dsymbol *s; | |
| 1919 Dsymbol *fdparent; | |
| 1920 | |
| 1921 //printf("FuncDeclaration::getLevel(fd = '%s')\n", fd->toChars()); | |
| 1922 fdparent = fd->toParent2(); | |
| 1923 if (fdparent == this) | |
| 1924 return -1; | |
| 1925 s = this; | |
| 1926 level = 0; | |
| 1927 while (fd != s && fdparent != s->toParent2()) | |
| 1928 { | |
| 1929 //printf("\ts = '%s'\n", s->toChars()); | |
| 1930 FuncDeclaration *thisfd = s->isFuncDeclaration(); | |
| 1931 if (thisfd) | |
| 1932 { if (!thisfd->isNested() && !thisfd->vthis) | |
| 1933 goto Lerr; | |
| 1934 } | |
| 1935 else | |
| 1936 { | |
| 1937 ClassDeclaration *thiscd = s->isClassDeclaration(); | |
| 1938 if (thiscd) | |
| 1939 { if (!thiscd->isNested()) | |
| 1940 goto Lerr; | |
| 1941 } | |
| 1942 else | |
| 1943 goto Lerr; | |
| 1944 } | |
| 1945 | |
| 1946 s = s->toParent2(); | |
| 1947 assert(s); | |
| 1948 level++; | |
| 1949 } | |
| 1950 return level; | |
| 1951 | |
| 1952 Lerr: | |
| 1953 error(loc, "cannot access frame of function %s", fd->toChars()); | |
| 1954 return 1; | |
| 1955 } | |
| 1956 | |
| 1957 void FuncDeclaration::appendExp(Expression *e) | |
| 1958 { Statement *s; | |
| 1959 | |
| 1960 s = new ExpStatement(0, e); | |
| 1961 appendState(s); | |
| 1962 } | |
| 1963 | |
| 1964 void FuncDeclaration::appendState(Statement *s) | |
| 1965 { CompoundStatement *cs; | |
| 1966 | |
| 1967 if (!fbody) | |
| 1968 { Statements *a; | |
| 1969 | |
| 1970 a = new Statements(); | |
| 1971 fbody = new CompoundStatement(0, a); | |
| 1972 } | |
| 1973 cs = fbody->isCompoundStatement(); | |
| 1974 cs->statements->push(s); | |
| 1975 } | |
| 1976 | |
| 1977 | |
| 1978 int FuncDeclaration::isMain() | |
| 1979 { | |
| 1980 return ident == Id::main && | |
| 1981 linkage != LINKc && !isMember() && !isNested(); | |
| 1982 } | |
| 1983 | |
| 1984 int FuncDeclaration::isWinMain() | |
| 1985 { | |
|
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1986 //printf("FuncDeclaration::isWinMain() %s\n", toChars()); |
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1987 #if 0 |
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1988 int x = ident == Id::WinMain && |
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1989 linkage != LINKc && !isMember(); |
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1990 printf("%s\n", x ? "yes" : "no"); |
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1991 return x; |
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1992 #else |
| 159 | 1993 return ident == Id::WinMain && |
| 1994 linkage != LINKc && !isMember(); | |
|
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1995 #endif |
| 159 | 1996 } |
| 1997 | |
| 1998 int FuncDeclaration::isDllMain() | |
| 1999 { | |
| 2000 return ident == Id::DllMain && | |
| 2001 linkage != LINKc && !isMember(); | |
| 2002 } | |
| 2003 | |
| 2004 int FuncDeclaration::isExport() | |
| 2005 { | |
| 2006 return protection == PROTexport; | |
| 2007 } | |
| 2008 | |
| 2009 int FuncDeclaration::isImportedSymbol() | |
| 2010 { | |
| 2011 //printf("isImportedSymbol()\n"); | |
| 2012 //printf("protection = %d\n", protection); | |
| 2013 return (protection == PROTexport) && !fbody; | |
| 2014 } | |
| 2015 | |
| 2016 // Determine if function goes into virtual function pointer table | |
| 2017 | |
| 2018 int FuncDeclaration::isVirtual() | |
| 2019 { | |
| 2020 #if 0 | |
| 2021 printf("FuncDeclaration::isVirtual(%s)\n", toChars()); | |
| 2022 printf("%p %d %d %d %d\n", isMember(), isStatic(), protection == PROTprivate, isCtorDeclaration(), linkage != LINKd); | |
| 2023 printf("result is %d\n", | |
| 2024 isMember() && | |
| 2025 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && | |
| 2026 toParent()->isClassDeclaration()); | |
| 2027 #endif | |
| 2028 return isMember() && | |
| 2029 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && | |
| 2030 toParent()->isClassDeclaration(); | |
| 2031 } | |
| 2032 | |
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2033 int FuncDeclaration::isFinal() |
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2034 { |
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2035 ClassDeclaration *cd; |
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2036 #if 0 |
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2037 printf("FuncDeclaration::isFinal(%s)\n", toChars()); |
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2038 printf("%p %d %d %d %d\n", isMember(), isStatic(), protection == PROTprivate, isCtorDeclaration(), linkage != LINKd); |
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2039 printf("result is %d\n", |
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2040 isMember() && |
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2041 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && |
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2042 (cd = toParent()->isClassDeclaration()) != NULL && |
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2043 cd->storage_class & STCfinal); |
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2044 #endif |
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2045 return isMember() && |
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2046 (Declaration::isFinal() || |
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2047 ((cd = toParent()->isClassDeclaration()) != NULL && cd->storage_class & STCfinal)); |
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2048 } |
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2049 |
| 159 | 2050 int FuncDeclaration::isAbstract() |
| 2051 { | |
| 2052 return storage_class & STCabstract; | |
| 2053 } | |
| 2054 | |
| 2055 int FuncDeclaration::isCodeseg() | |
| 2056 { | |
| 2057 return TRUE; // functions are always in the code segment | |
| 2058 } | |
| 2059 | |
| 2060 // Determine if function needs | |
| 2061 // a static frame pointer to its lexically enclosing function | |
| 2062 | |
| 2063 int FuncDeclaration::isNested() | |
| 2064 { | |
| 2065 //if (!toParent()) | |
| 2066 //printf("FuncDeclaration::isNested('%s') parent=%p\n", toChars(), parent); | |
| 2067 //printf("\ttoParent() = '%s'\n", toParent()->toChars()); | |
| 2068 return ((storage_class & STCstatic) == 0) && | |
| 2069 (toParent2()->isFuncDeclaration() != NULL); | |
| 2070 } | |
| 2071 | |
| 2072 int FuncDeclaration::needThis() | |
| 2073 { | |
| 2074 //printf("FuncDeclaration::needThis() '%s'\n", toChars()); | |
| 2075 int i = isThis() != NULL; | |
| 2076 //printf("\t%d\n", i); | |
| 2077 if (!i && isFuncAliasDeclaration()) | |
| 2078 i = ((FuncAliasDeclaration *)this)->funcalias->needThis(); | |
| 2079 return i; | |
| 2080 } | |
| 2081 | |
| 2082 int FuncDeclaration::addPreInvariant() | |
| 2083 { | |
| 2084 AggregateDeclaration *ad = isThis(); | |
| 2085 return (ad && | |
| 2086 //ad->isClassDeclaration() && | |
| 2087 global.params.useInvariants && | |
| 2088 (protection == PROTpublic || protection == PROTexport) && | |
| 2089 !naked); | |
| 2090 } | |
| 2091 | |
| 2092 int FuncDeclaration::addPostInvariant() | |
| 2093 { | |
| 2094 AggregateDeclaration *ad = isThis(); | |
| 2095 return (ad && | |
| 2096 ad->inv && | |
| 2097 //ad->isClassDeclaration() && | |
| 2098 global.params.useInvariants && | |
| 2099 (protection == PROTpublic || protection == PROTexport) && | |
| 2100 !naked); | |
| 2101 } | |
| 2102 | |
| 2103 /********************************** | |
| 2104 * Generate a FuncDeclaration for a runtime library function. | |
| 2105 */ | |
| 2106 | |
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2107 // |
|
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2108 // LDC: Adjusted to give argument info to the runtime function decl. |
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2109 // |
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2110 |
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2111 FuncDeclaration *FuncDeclaration::genCfunc(Arguments *args, Type *treturn, const char *name) |
| 159 | 2112 { |
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2113 return genCfunc(args, treturn, Lexer::idPool(name)); |
| 159 | 2114 } |
| 2115 | |
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2116 FuncDeclaration *FuncDeclaration::genCfunc(Arguments *args, Type *treturn, Identifier *id) |
| 159 | 2117 { |
| 2118 FuncDeclaration *fd; | |
| 2119 TypeFunction *tf; | |
| 2120 Dsymbol *s; | |
| 2121 static DsymbolTable *st = NULL; | |
| 2122 | |
| 2123 //printf("genCfunc(name = '%s')\n", id->toChars()); | |
| 2124 //printf("treturn\n\t"); treturn->print(); | |
| 2125 | |
| 2126 // See if already in table | |
| 2127 if (!st) | |
| 2128 st = new DsymbolTable(); | |
| 2129 s = st->lookup(id); | |
| 2130 if (s) | |
| 2131 { | |
| 2132 fd = s->isFuncDeclaration(); | |
| 2133 assert(fd); | |
| 2134 assert(fd->type->nextOf()->equals(treturn)); | |
| 2135 } | |
| 2136 else | |
| 2137 { | |
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2138 tf = new TypeFunction(args, treturn, 0, LINKc); |
| 159 | 2139 fd = new FuncDeclaration(0, 0, id, STCstatic, tf); |
| 2140 fd->protection = PROTpublic; | |
| 2141 fd->linkage = LINKc; | |
| 2142 | |
| 2143 st->insert(fd); | |
| 2144 } | |
| 2145 return fd; | |
| 2146 } | |
| 2147 | |
| 336 | 2148 const char *FuncDeclaration::kind() |
| 159 | 2149 { |
| 2150 return "function"; | |
| 2151 } | |
| 336 | 2152 |
| 159 | 2153 /******************************* |
| 2154 * Look at all the variables in this function that are referenced | |
| 2155 * by nested functions, and determine if a closure needs to be | |
| 2156 * created for them. | |
| 2157 */ | |
| 2158 | |
| 336 | 2159 #if DMDV2 |
| 159 | 2160 int FuncDeclaration::needsClosure() |
| 2161 { | |
| 2162 /* Need a closure for all the closureVars[] if any of the | |
| 2163 * closureVars[] are accessed by a | |
| 2164 * function that escapes the scope of this function. | |
| 2165 * We take the conservative approach and decide that any function that: | |
| 2166 * 1) is a virtual function | |
| 2167 * 2) has its address taken | |
| 2168 * 3) has a parent that escapes | |
| 336 | 2169 * |
| 2170 * Note that since a non-virtual function can be called by | |
| 2171 * a virtual one, if that non-virtual function accesses a closure | |
| 2172 * var, the closure still has to be taken. Hence, we check for isThis() | |
| 2173 * instead of isVirtual(). (thanks to David Friedman) | |
| 159 | 2174 */ |
| 2175 | |
| 2176 //printf("FuncDeclaration::needsClosure() %s\n", toChars()); | |
| 2177 for (int i = 0; i < closureVars.dim; i++) | |
| 2178 { VarDeclaration *v = (VarDeclaration *)closureVars.data[i]; | |
| 2179 assert(v->isVarDeclaration()); | |
| 2180 //printf("\tv = %s\n", v->toChars()); | |
| 2181 | |
| 2182 for (int j = 0; j < v->nestedrefs.dim; j++) | |
| 2183 { FuncDeclaration *f = (FuncDeclaration *)v->nestedrefs.data[j]; | |
| 2184 assert(f != this); | |
| 2185 | |
| 2186 //printf("\t\tf = %s, %d, %d\n", f->toChars(), f->isVirtual(), f->tookAddressOf); | |
| 336 | 2187 if (f->isThis() || f->tookAddressOf) |
| 159 | 2188 goto Lyes; // assume f escapes this function's scope |
| 2189 | |
| 2190 // Look to see if any parents of f that are below this escape | |
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2191 for (Dsymbol *s = f->parent; s && s != this; s = s->parent) |
| 159 | 2192 { |
| 2193 f = s->isFuncDeclaration(); | |
| 336 | 2194 if (f && (f->isThis() || f->tookAddressOf)) |
| 159 | 2195 goto Lyes; |
| 2196 } | |
| 2197 } | |
| 2198 } | |
| 2199 return 0; | |
| 2200 | |
| 2201 Lyes: | |
| 2202 //printf("\tneeds closure\n"); | |
| 2203 return 1; | |
| 2204 } | |
| 2205 #endif | |
| 2206 | |
| 2207 /****************************** FuncAliasDeclaration ************************/ | |
| 2208 | |
| 2209 // Used as a way to import a set of functions from another scope into this one. | |
| 2210 | |
| 2211 FuncAliasDeclaration::FuncAliasDeclaration(FuncDeclaration *funcalias) | |
| 2212 : FuncDeclaration(funcalias->loc, funcalias->endloc, funcalias->ident, | |
| 2213 (enum STC)funcalias->storage_class, funcalias->type) | |
| 2214 { | |
| 2215 assert(funcalias != this); | |
| 2216 this->funcalias = funcalias; | |
| 2217 } | |
| 2218 | |
| 336 | 2219 const char *FuncAliasDeclaration::kind() |
| 159 | 2220 { |
| 2221 return "function alias"; | |
| 2222 } | |
| 2223 | |
| 2224 | |
| 2225 /****************************** FuncLiteralDeclaration ************************/ | |
| 2226 | |
| 2227 FuncLiteralDeclaration::FuncLiteralDeclaration(Loc loc, Loc endloc, Type *type, | |
| 2228 enum TOK tok, ForeachStatement *fes) | |
| 2229 : FuncDeclaration(loc, endloc, NULL, STCundefined, type) | |
| 2230 { | |
|
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2231 const char *id; |
| 159 | 2232 |
| 2233 if (fes) | |
| 2234 id = "__foreachbody"; | |
| 2235 else if (tok == TOKdelegate) | |
| 2236 id = "__dgliteral"; | |
| 2237 else | |
| 2238 id = "__funcliteral"; | |
| 2239 this->ident = Identifier::generateId(id); | |
| 2240 this->tok = tok; | |
| 2241 this->fes = fes; | |
| 2242 //printf("FuncLiteralDeclaration() id = '%s', type = '%s'\n", this->ident->toChars(), type->toChars()); | |
| 2243 } | |
| 2244 | |
| 2245 Dsymbol *FuncLiteralDeclaration::syntaxCopy(Dsymbol *s) | |
| 2246 { | |
| 2247 FuncLiteralDeclaration *f; | |
| 2248 | |
| 2249 //printf("FuncLiteralDeclaration::syntaxCopy('%s')\n", toChars()); | |
| 2250 if (s) | |
| 2251 f = (FuncLiteralDeclaration *)s; | |
| 2252 else | |
| 2253 f = new FuncLiteralDeclaration(loc, endloc, type->syntaxCopy(), tok, fes); | |
| 2254 FuncDeclaration::syntaxCopy(f); | |
| 2255 return f; | |
| 2256 } | |
| 2257 | |
| 2258 int FuncLiteralDeclaration::isNested() | |
| 2259 { | |
| 2260 //printf("FuncLiteralDeclaration::isNested() '%s'\n", toChars()); | |
| 2261 return (tok == TOKdelegate); | |
| 2262 } | |
| 2263 | |
| 336 | 2264 int FuncLiteralDeclaration::isVirtual() |
| 2265 { | |
| 2266 return FALSE; | |
| 2267 } | |
| 2268 | |
| 2269 const char *FuncLiteralDeclaration::kind() | |
| 159 | 2270 { |
| 2271 // GCC requires the (char*) casts | |
| 2272 return (tok == TOKdelegate) ? (char*)"delegate" : (char*)"function"; | |
| 2273 } | |
| 2274 | |
| 2275 void FuncLiteralDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2276 { | |
| 2277 static Identifier *idfunc; | |
| 2278 static Identifier *iddel; | |
| 2279 | |
| 2280 if (!idfunc) | |
| 2281 idfunc = new Identifier("function", 0); | |
| 2282 if (!iddel) | |
| 2283 iddel = new Identifier("delegate", 0); | |
| 2284 | |
| 2285 type->toCBuffer(buf, ((tok == TOKdelegate) ? iddel : idfunc), hgs); | |
| 2286 bodyToCBuffer(buf, hgs); | |
| 2287 } | |
| 2288 | |
| 2289 | |
| 2290 /********************************* CtorDeclaration ****************************/ | |
| 2291 | |
| 2292 CtorDeclaration::CtorDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs) | |
| 2293 : FuncDeclaration(loc, endloc, Id::ctor, STCundefined, NULL) | |
| 2294 { | |
| 2295 this->arguments = arguments; | |
| 2296 this->varargs = varargs; | |
|
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2297 //printf("CtorDeclaration(loc = %s) %s\n", loc.toChars(), toChars()); |
| 159 | 2298 } |
| 2299 | |
| 2300 Dsymbol *CtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2301 { | |
| 2302 CtorDeclaration *f; | |
| 2303 | |
| 2304 f = new CtorDeclaration(loc, endloc, NULL, varargs); | |
| 2305 | |
| 2306 f->outId = outId; | |
| 2307 f->frequire = frequire ? frequire->syntaxCopy() : NULL; | |
| 2308 f->fensure = fensure ? fensure->syntaxCopy() : NULL; | |
| 2309 f->fbody = fbody ? fbody->syntaxCopy() : NULL; | |
| 2310 assert(!fthrows); // deprecated | |
| 2311 | |
| 2312 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2313 return f; | |
| 2314 } | |
| 2315 | |
| 2316 | |
| 2317 void CtorDeclaration::semantic(Scope *sc) | |
| 2318 { | |
| 2319 ClassDeclaration *cd; | |
| 2320 Type *tret; | |
| 2321 | |
| 2322 //printf("CtorDeclaration::semantic()\n"); | |
| 2323 if (type) | |
| 2324 return; | |
| 2325 | |
| 2326 sc = sc->push(); | |
| 2327 sc->stc &= ~STCstatic; // not a static constructor | |
| 2328 | |
| 2329 parent = sc->parent; | |
| 2330 Dsymbol *parent = toParent(); | |
| 2331 cd = parent->isClassDeclaration(); | |
| 2332 if (!cd) | |
| 2333 { | |
| 2334 error("constructors are only for class definitions"); | |
|
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2335 fatal(); |
| 159 | 2336 tret = Type::tvoid; |
| 2337 } | |
| 2338 else | |
| 2339 tret = cd->type; //->referenceTo(); | |
| 2340 type = new TypeFunction(arguments, tret, varargs, LINKd); | |
| 336 | 2341 if (!originalType) |
| 2342 originalType = type; | |
| 159 | 2343 |
| 2344 sc->flags |= SCOPEctor; | |
| 2345 type = type->semantic(loc, sc); | |
| 2346 sc->flags &= ~SCOPEctor; | |
| 2347 | |
| 2348 // Append: | |
| 2349 // return this; | |
| 2350 // to the function body | |
| 2351 if (fbody) | |
| 2352 { Expression *e; | |
| 2353 Statement *s; | |
| 2354 | |
| 2355 e = new ThisExp(0); | |
| 2356 s = new ReturnStatement(0, e); | |
| 2357 fbody = new CompoundStatement(0, fbody, s); | |
| 2358 } | |
| 2359 | |
| 2360 FuncDeclaration::semantic(sc); | |
| 2361 | |
| 2362 sc->pop(); | |
| 2363 | |
| 2364 // See if it's the default constructor | |
| 2365 if (cd && varargs == 0 && Argument::dim(arguments) == 0) | |
| 2366 cd->defaultCtor = this; | |
| 2367 } | |
| 2368 | |
| 336 | 2369 const char *CtorDeclaration::kind() |
| 159 | 2370 { |
| 2371 return "constructor"; | |
| 2372 } | |
| 2373 | |
| 2374 char *CtorDeclaration::toChars() | |
| 2375 { | |
|
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|
2376 return (char *)"this"; |
| 159 | 2377 } |
| 2378 | |
| 2379 int CtorDeclaration::isVirtual() | |
| 2380 { | |
| 2381 return FALSE; | |
| 2382 } | |
| 2383 | |
| 2384 int CtorDeclaration::addPreInvariant() | |
| 2385 { | |
| 2386 return FALSE; | |
| 2387 } | |
| 2388 | |
| 2389 int CtorDeclaration::addPostInvariant() | |
| 2390 { | |
| 2391 return (vthis && global.params.useInvariants); | |
| 2392 } | |
| 2393 | |
| 2394 | |
| 2395 void CtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2396 { | |
| 2397 buf->writestring("this"); | |
| 2398 Argument::argsToCBuffer(buf, hgs, arguments, varargs); | |
| 2399 bodyToCBuffer(buf, hgs); | |
| 2400 } | |
| 2401 | |
| 2402 /********************************* DtorDeclaration ****************************/ | |
| 2403 | |
| 2404 DtorDeclaration::DtorDeclaration(Loc loc, Loc endloc) | |
| 2405 : FuncDeclaration(loc, endloc, Id::dtor, STCundefined, NULL) | |
| 2406 { | |
| 2407 } | |
| 2408 | |
| 2409 DtorDeclaration::DtorDeclaration(Loc loc, Loc endloc, Identifier *id) | |
| 2410 : FuncDeclaration(loc, endloc, id, STCundefined, NULL) | |
| 2411 { | |
| 2412 } | |
| 2413 | |
| 2414 Dsymbol *DtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2415 { | |
| 2416 assert(!s); | |
| 2417 DtorDeclaration *dd = new DtorDeclaration(loc, endloc, ident); | |
| 2418 return FuncDeclaration::syntaxCopy(dd); | |
| 2419 } | |
| 2420 | |
| 2421 | |
| 2422 void DtorDeclaration::semantic(Scope *sc) | |
| 2423 { | |
| 2424 ClassDeclaration *cd; | |
| 2425 | |
| 2426 parent = sc->parent; | |
| 2427 Dsymbol *parent = toParent(); | |
| 2428 cd = parent->isClassDeclaration(); | |
| 2429 if (!cd) | |
| 2430 { | |
| 2431 error("destructors only are for class definitions"); | |
|
333
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[svn r354] Fix the regressions between [346] and [353] by making constructors and destructors outside classes fatal errors.
ChristianK
parents:
305
diff
changeset
|
2432 fatal(); |
| 159 | 2433 } |
| 2434 else | |
| 2435 cd->dtors.push(this); | |
| 2436 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2437 | |
| 2438 sc = sc->push(); | |
| 2439 sc->stc &= ~STCstatic; // not a static destructor | |
| 2440 sc->linkage = LINKd; | |
| 2441 | |
| 2442 FuncDeclaration::semantic(sc); | |
| 2443 | |
| 2444 sc->pop(); | |
| 2445 } | |
| 2446 | |
| 2447 int DtorDeclaration::overloadInsert(Dsymbol *s) | |
| 2448 { | |
| 2449 return FALSE; // cannot overload destructors | |
| 2450 } | |
| 2451 | |
| 2452 int DtorDeclaration::addPreInvariant() | |
| 2453 { | |
| 2454 return (vthis && global.params.useInvariants); | |
| 2455 } | |
| 2456 | |
| 2457 int DtorDeclaration::addPostInvariant() | |
| 2458 { | |
| 2459 return FALSE; | |
| 2460 } | |
| 2461 | |
| 2462 int DtorDeclaration::isVirtual() | |
| 2463 { | |
| 2464 /* This should be FALSE so that dtor's don't get put into the vtbl[], | |
| 2465 * but doing so will require recompiling everything. | |
| 2466 */ | |
| 2467 #if BREAKABI | |
| 2468 return FALSE; | |
| 2469 #else | |
| 2470 return FuncDeclaration::isVirtual(); | |
| 2471 #endif | |
| 2472 } | |
| 2473 | |
| 2474 void DtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2475 { | |
| 2476 if (hgs->hdrgen) | |
| 2477 return; | |
| 2478 buf->writestring("~this()"); | |
| 2479 bodyToCBuffer(buf, hgs); | |
| 2480 } | |
| 2481 | |
| 2482 /********************************* StaticCtorDeclaration ****************************/ | |
| 2483 | |
| 2484 StaticCtorDeclaration::StaticCtorDeclaration(Loc loc, Loc endloc) | |
| 2485 : FuncDeclaration(loc, endloc, | |
|
957
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Backed out changeset [369996c08420].
Christian Kamm <kamm incasoftware de>
parents:
956
diff
changeset
|
2486 Identifier::generateId("_staticCtor"), STCstatic, NULL) |
| 159 | 2487 { |
| 2488 } | |
| 2489 | |
| 2490 Dsymbol *StaticCtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2491 { | |
| 2492 StaticCtorDeclaration *scd; | |
| 2493 | |
| 2494 assert(!s); | |
| 2495 scd = new StaticCtorDeclaration(loc, endloc); | |
| 2496 return FuncDeclaration::syntaxCopy(scd); | |
| 2497 } | |
| 2498 | |
| 2499 | |
| 2500 void StaticCtorDeclaration::semantic(Scope *sc) | |
| 2501 { | |
| 2502 //printf("StaticCtorDeclaration::semantic()\n"); | |
| 2503 | |
| 2504 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2505 | |
| 336 | 2506 /* If the static ctor appears within a template instantiation, |
| 2507 * it could get called multiple times by the module constructors | |
| 2508 * for different modules. Thus, protect it with a gate. | |
| 2509 */ | |
| 2510 if (inTemplateInstance()) | |
| 2511 { | |
| 2512 /* Add this prefix to the function: | |
| 2513 * static int gate; | |
| 2514 * if (++gate != 1) return; | |
| 2515 * Note that this is not thread safe; should not have threads | |
| 2516 * during static construction. | |
| 2517 */ | |
| 2518 Identifier *id = Lexer::idPool("__gate"); | |
| 2519 VarDeclaration *v = new VarDeclaration(0, Type::tint32, id, NULL); | |
| 2520 v->storage_class = STCstatic; | |
| 2521 Statements *sa = new Statements(); | |
| 2522 Statement *s = new DeclarationStatement(0, v); | |
| 2523 sa->push(s); | |
| 2524 Expression *e = new IdentifierExp(0, id); | |
| 2525 e = new AddAssignExp(0, e, new IntegerExp(1)); | |
| 2526 e = new EqualExp(TOKnotequal, 0, e, new IntegerExp(1)); | |
| 2527 s = new IfStatement(0, NULL, e, new ReturnStatement(0, NULL), NULL); | |
| 2528 sa->push(s); | |
| 2529 if (fbody) | |
| 2530 sa->push(fbody); | |
| 2531 fbody = new CompoundStatement(0, sa); | |
| 2532 } | |
| 2533 | |
| 159 | 2534 FuncDeclaration::semantic(sc); |
| 2535 | |
| 2536 // We're going to need ModuleInfo | |
| 2537 Module *m = getModule(); | |
| 2538 if (!m) | |
| 2539 m = sc->module; | |
| 2540 if (m) | |
| 2541 { m->needmoduleinfo = 1; | |
| 2542 #ifdef IN_GCC | |
| 2543 m->strictlyneedmoduleinfo = 1; | |
| 2544 #endif | |
| 2545 } | |
| 2546 } | |
| 2547 | |
| 2548 AggregateDeclaration *StaticCtorDeclaration::isThis() | |
| 2549 { | |
| 2550 return NULL; | |
| 2551 } | |
| 2552 | |
| 2553 int StaticCtorDeclaration::isStaticConstructor() | |
| 2554 { | |
| 2555 return TRUE; | |
| 2556 } | |
| 2557 | |
| 2558 int StaticCtorDeclaration::isVirtual() | |
| 2559 { | |
| 2560 return FALSE; | |
| 2561 } | |
| 2562 | |
| 2563 int StaticCtorDeclaration::addPreInvariant() | |
| 2564 { | |
| 2565 return FALSE; | |
| 2566 } | |
| 2567 | |
| 2568 int StaticCtorDeclaration::addPostInvariant() | |
| 2569 { | |
| 2570 return FALSE; | |
| 2571 } | |
| 2572 | |
| 2573 void StaticCtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2574 { | |
| 2575 if (hgs->hdrgen) | |
| 2576 { buf->writestring("static this();\n"); | |
| 2577 return; | |
| 2578 } | |
| 2579 buf->writestring("static this()"); | |
| 2580 bodyToCBuffer(buf, hgs); | |
| 2581 } | |
| 2582 | |
| 2583 /********************************* StaticDtorDeclaration ****************************/ | |
| 2584 | |
| 2585 StaticDtorDeclaration::StaticDtorDeclaration(Loc loc, Loc endloc) | |
| 2586 : FuncDeclaration(loc, endloc, | |
|
957
31bbc7f3b817
Backed out changeset [369996c08420].
Christian Kamm <kamm incasoftware de>
parents:
956
diff
changeset
|
2587 Identifier::generateId("_staticDtor"), STCstatic, NULL) |
| 159 | 2588 { |
| 336 | 2589 vgate = NULL; |
| 159 | 2590 } |
| 2591 | |
| 2592 Dsymbol *StaticDtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2593 { | |
| 2594 StaticDtorDeclaration *sdd; | |
| 2595 | |
| 2596 assert(!s); | |
| 2597 sdd = new StaticDtorDeclaration(loc, endloc); | |
| 2598 return FuncDeclaration::syntaxCopy(sdd); | |
| 2599 } | |
| 2600 | |
| 2601 | |
| 2602 void StaticDtorDeclaration::semantic(Scope *sc) | |
| 2603 { | |
| 2604 ClassDeclaration *cd; | |
| 2605 Type *tret; | |
| 2606 | |
| 2607 cd = sc->scopesym->isClassDeclaration(); | |
| 2608 if (!cd) | |
| 2609 { | |
| 2610 } | |
| 2611 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2612 | |
| 336 | 2613 /* If the static ctor appears within a template instantiation, |
| 2614 * it could get called multiple times by the module constructors | |
| 2615 * for different modules. Thus, protect it with a gate. | |
| 2616 */ | |
| 2617 if (inTemplateInstance()) | |
| 2618 { | |
| 2619 /* Add this prefix to the function: | |
| 2620 * static int gate; | |
| 2621 * if (--gate != 0) return; | |
| 2622 * Increment gate during constructor execution. | |
| 2623 * Note that this is not thread safe; should not have threads | |
| 2624 * during static destruction. | |
| 2625 */ | |
| 2626 Identifier *id = Lexer::idPool("__gate"); | |
| 2627 VarDeclaration *v = new VarDeclaration(0, Type::tint32, id, NULL); | |
| 2628 v->storage_class = STCstatic; | |
| 2629 Statements *sa = new Statements(); | |
| 2630 Statement *s = new DeclarationStatement(0, v); | |
| 2631 sa->push(s); | |
| 2632 Expression *e = new IdentifierExp(0, id); | |
|
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Fixed warning on osx as per request from mwarning.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
891
diff
changeset
|
2633 e = new AddAssignExp(0, e, new IntegerExp((uint64_t)-1)); |
|
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
644
diff
changeset
|
2634 e = new EqualExp(TOKnotequal, 0, e, new IntegerExp(0)); |
| 336 | 2635 s = new IfStatement(0, NULL, e, new ReturnStatement(0, NULL), NULL); |
| 2636 sa->push(s); | |
| 2637 if (fbody) | |
| 2638 sa->push(fbody); | |
| 2639 fbody = new CompoundStatement(0, sa); | |
| 2640 vgate = v; | |
| 2641 } | |
| 2642 | |
| 159 | 2643 FuncDeclaration::semantic(sc); |
| 2644 | |
| 2645 // We're going to need ModuleInfo | |
| 2646 Module *m = getModule(); | |
| 2647 if (!m) | |
| 2648 m = sc->module; | |
| 2649 if (m) | |
| 2650 { m->needmoduleinfo = 1; | |
| 2651 #ifdef IN_GCC | |
| 2652 m->strictlyneedmoduleinfo = 1; | |
| 2653 #endif | |
| 2654 } | |
| 2655 } | |
| 2656 | |
| 2657 AggregateDeclaration *StaticDtorDeclaration::isThis() | |
| 2658 { | |
| 2659 return NULL; | |
| 2660 } | |
| 2661 | |
| 2662 int StaticDtorDeclaration::isStaticDestructor() | |
| 2663 { | |
| 2664 return TRUE; | |
| 2665 } | |
| 2666 | |
| 2667 int StaticDtorDeclaration::isVirtual() | |
| 2668 { | |
| 2669 return FALSE; | |
| 2670 } | |
| 2671 | |
| 2672 int StaticDtorDeclaration::addPreInvariant() | |
| 2673 { | |
| 2674 return FALSE; | |
| 2675 } | |
| 2676 | |
| 2677 int StaticDtorDeclaration::addPostInvariant() | |
| 2678 { | |
| 2679 return FALSE; | |
| 2680 } | |
| 2681 | |
| 2682 void StaticDtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2683 { | |
| 2684 if (hgs->hdrgen) | |
| 2685 return; | |
| 2686 buf->writestring("static ~this()"); | |
| 2687 bodyToCBuffer(buf, hgs); | |
| 2688 } | |
| 2689 | |
| 2690 /********************************* InvariantDeclaration ****************************/ | |
| 2691 | |
| 2692 InvariantDeclaration::InvariantDeclaration(Loc loc, Loc endloc) | |
| 2693 : FuncDeclaration(loc, endloc, Id::classInvariant, STCundefined, NULL) | |
| 2694 { | |
| 2695 } | |
| 2696 | |
| 2697 Dsymbol *InvariantDeclaration::syntaxCopy(Dsymbol *s) | |
| 2698 { | |
| 2699 InvariantDeclaration *id; | |
| 2700 | |
| 2701 assert(!s); | |
| 2702 id = new InvariantDeclaration(loc, endloc); | |
| 2703 FuncDeclaration::syntaxCopy(id); | |
| 2704 return id; | |
| 2705 } | |
| 2706 | |
| 2707 | |
| 2708 void InvariantDeclaration::semantic(Scope *sc) | |
| 2709 { | |
| 2710 AggregateDeclaration *ad; | |
| 2711 Type *tret; | |
| 2712 | |
| 2713 parent = sc->parent; | |
| 2714 Dsymbol *parent = toParent(); | |
| 2715 ad = parent->isAggregateDeclaration(); | |
| 2716 if (!ad) | |
| 2717 { | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
957
diff
changeset
|
2718 error("invariants are only for struct/union/class definitions"); |
| 159 | 2719 return; |
| 2720 } | |
| 2721 else if (ad->inv && ad->inv != this) | |
| 2722 { | |
| 2723 error("more than one invariant for %s", ad->toChars()); | |
| 2724 } | |
| 2725 ad->inv = this; | |
| 2726 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2727 | |
| 2728 sc = sc->push(); | |
| 2729 sc->stc &= ~STCstatic; // not a static invariant | |
| 2730 sc->incontract++; | |
| 2731 sc->linkage = LINKd; | |
| 2732 | |
| 2733 FuncDeclaration::semantic(sc); | |
| 2734 | |
| 2735 sc->pop(); | |
| 2736 } | |
| 2737 | |
| 2738 int InvariantDeclaration::isVirtual() | |
| 2739 { | |
| 2740 return FALSE; | |
| 2741 } | |
| 2742 | |
| 2743 int InvariantDeclaration::addPreInvariant() | |
| 2744 { | |
| 2745 return FALSE; | |
| 2746 } | |
| 2747 | |
| 2748 int InvariantDeclaration::addPostInvariant() | |
| 2749 { | |
| 2750 return FALSE; | |
| 2751 } | |
| 2752 | |
| 2753 void InvariantDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2754 { | |
| 2755 if (hgs->hdrgen) | |
| 2756 return; | |
| 2757 buf->writestring("invariant"); | |
| 2758 bodyToCBuffer(buf, hgs); | |
| 2759 } | |
| 2760 | |
| 2761 | |
| 2762 /********************************* UnitTestDeclaration ****************************/ | |
| 2763 | |
| 2764 /******************************* | |
| 2765 * Generate unique unittest function Id so we can have multiple | |
| 2766 * instances per module. | |
| 2767 */ | |
| 2768 | |
| 2769 static Identifier *unitTestId() | |
| 2770 { | |
| 336 | 2771 return Lexer::uniqueId("__unittest"); |
| 159 | 2772 } |
| 2773 | |
| 2774 UnitTestDeclaration::UnitTestDeclaration(Loc loc, Loc endloc) | |
| 2775 : FuncDeclaration(loc, endloc, unitTestId(), STCundefined, NULL) | |
| 2776 { | |
| 2777 } | |
| 2778 | |
| 2779 Dsymbol *UnitTestDeclaration::syntaxCopy(Dsymbol *s) | |
| 2780 { | |
| 2781 UnitTestDeclaration *utd; | |
| 2782 | |
| 2783 assert(!s); | |
| 2784 utd = new UnitTestDeclaration(loc, endloc); | |
| 2785 return FuncDeclaration::syntaxCopy(utd); | |
| 2786 } | |
| 2787 | |
| 2788 | |
| 2789 void UnitTestDeclaration::semantic(Scope *sc) | |
| 2790 { | |
| 2791 if (global.params.useUnitTests) | |
| 2792 { | |
| 2793 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
2794 Scope *sc2 = sc->push(); |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
2795 sc2->linkage = LINKd; |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
2796 FuncDeclaration::semantic(sc2); |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
2797 sc2->pop(); |
| 159 | 2798 } |
| 2799 | |
| 2800 // We're going to need ModuleInfo even if the unit tests are not | |
| 2801 // compiled in, because other modules may import this module and refer | |
| 2802 // to this ModuleInfo. | |
| 2803 Module *m = getModule(); | |
| 2804 if (!m) | |
| 2805 m = sc->module; | |
| 2806 if (m) | |
| 2807 m->needmoduleinfo = 1; | |
| 2808 } | |
| 2809 | |
| 2810 AggregateDeclaration *UnitTestDeclaration::isThis() | |
| 2811 { | |
| 2812 return NULL; | |
| 2813 } | |
| 2814 | |
| 2815 int UnitTestDeclaration::isVirtual() | |
| 2816 { | |
| 2817 return FALSE; | |
| 2818 } | |
| 2819 | |
| 2820 int UnitTestDeclaration::addPreInvariant() | |
| 2821 { | |
| 2822 return FALSE; | |
| 2823 } | |
| 2824 | |
| 2825 int UnitTestDeclaration::addPostInvariant() | |
| 2826 { | |
| 2827 return FALSE; | |
| 2828 } | |
| 2829 | |
| 2830 void UnitTestDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2831 { | |
| 2832 if (hgs->hdrgen) | |
| 2833 return; | |
| 2834 buf->writestring("unittest"); | |
| 2835 bodyToCBuffer(buf, hgs); | |
| 2836 } | |
| 2837 | |
| 2838 /********************************* NewDeclaration ****************************/ | |
| 2839 | |
| 2840 NewDeclaration::NewDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs) | |
| 2841 : FuncDeclaration(loc, endloc, Id::classNew, STCstatic, NULL) | |
| 2842 { | |
| 2843 this->arguments = arguments; | |
| 2844 this->varargs = varargs; | |
| 2845 } | |
| 2846 | |
| 2847 Dsymbol *NewDeclaration::syntaxCopy(Dsymbol *s) | |
| 2848 { | |
| 2849 NewDeclaration *f; | |
| 2850 | |
| 2851 f = new NewDeclaration(loc, endloc, NULL, varargs); | |
| 2852 | |
| 2853 FuncDeclaration::syntaxCopy(f); | |
| 2854 | |
| 2855 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2856 | |
| 2857 return f; | |
| 2858 } | |
| 2859 | |
| 2860 | |
| 2861 void NewDeclaration::semantic(Scope *sc) | |
| 2862 { | |
| 2863 ClassDeclaration *cd; | |
| 2864 Type *tret; | |
| 2865 | |
| 2866 //printf("NewDeclaration::semantic()\n"); | |
| 2867 | |
| 2868 parent = sc->parent; | |
| 2869 Dsymbol *parent = toParent(); | |
| 2870 cd = parent->isClassDeclaration(); | |
| 2871 if (!cd && !parent->isStructDeclaration()) | |
| 2872 { | |
| 2873 error("new allocators only are for class or struct definitions"); | |
| 2874 } | |
| 2875 tret = Type::tvoid->pointerTo(); | |
| 2876 type = new TypeFunction(arguments, tret, varargs, LINKd); | |
| 2877 | |
| 2878 type = type->semantic(loc, sc); | |
| 2879 assert(type->ty == Tfunction); | |
| 2880 | |
| 2881 // Check that there is at least one argument of type uint | |
| 2882 TypeFunction *tf = (TypeFunction *)type; | |
| 2883 if (Argument::dim(tf->parameters) < 1) | |
| 2884 { | |
|
891
ea82e2077f9d
Change custom allocator new size argument to size_t instead of uint. See #175.
Christian Kamm <kamm incasoftware de>
parents:
875
diff
changeset
|
2885 error("at least one argument of type size_t expected"); |
| 159 | 2886 } |
| 2887 else | |
| 2888 { | |
| 2889 Argument *a = Argument::getNth(tf->parameters, 0); | |
|
891
ea82e2077f9d
Change custom allocator new size argument to size_t instead of uint. See #175.
Christian Kamm <kamm incasoftware de>
parents:
875
diff
changeset
|
2890 if (!a->type->equals(Type::tsize_t)) |
|
ea82e2077f9d
Change custom allocator new size argument to size_t instead of uint. See #175.
Christian Kamm <kamm incasoftware de>
parents:
875
diff
changeset
|
2891 error("first argument must be type size_t, not %s", a->type->toChars()); |
| 159 | 2892 } |
| 2893 | |
| 2894 FuncDeclaration::semantic(sc); | |
| 2895 } | |
| 2896 | |
| 336 | 2897 const char *NewDeclaration::kind() |
| 159 | 2898 { |
| 2899 return "allocator"; | |
| 2900 } | |
| 2901 | |
| 2902 int NewDeclaration::isVirtual() | |
| 2903 { | |
| 2904 return FALSE; | |
| 2905 } | |
| 2906 | |
| 2907 int NewDeclaration::addPreInvariant() | |
| 2908 { | |
| 2909 return FALSE; | |
| 2910 } | |
| 2911 | |
| 2912 int NewDeclaration::addPostInvariant() | |
| 2913 { | |
| 2914 return FALSE; | |
| 2915 } | |
| 2916 | |
| 2917 void NewDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2918 { | |
| 2919 buf->writestring("new"); | |
| 2920 Argument::argsToCBuffer(buf, hgs, arguments, varargs); | |
| 2921 bodyToCBuffer(buf, hgs); | |
| 2922 } | |
| 2923 | |
| 2924 | |
| 2925 /********************************* DeleteDeclaration ****************************/ | |
| 2926 | |
| 2927 DeleteDeclaration::DeleteDeclaration(Loc loc, Loc endloc, Arguments *arguments) | |
| 2928 : FuncDeclaration(loc, endloc, Id::classDelete, STCstatic, NULL) | |
| 2929 { | |
| 2930 this->arguments = arguments; | |
| 2931 } | |
| 2932 | |
| 2933 Dsymbol *DeleteDeclaration::syntaxCopy(Dsymbol *s) | |
| 2934 { | |
| 2935 DeleteDeclaration *f; | |
| 2936 | |
| 2937 f = new DeleteDeclaration(loc, endloc, NULL); | |
| 2938 | |
| 2939 FuncDeclaration::syntaxCopy(f); | |
| 2940 | |
| 2941 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2942 | |
| 2943 return f; | |
| 2944 } | |
| 2945 | |
| 2946 | |
| 2947 void DeleteDeclaration::semantic(Scope *sc) | |
| 2948 { | |
| 2949 ClassDeclaration *cd; | |
| 2950 | |
| 2951 //printf("DeleteDeclaration::semantic()\n"); | |
| 2952 | |
| 2953 parent = sc->parent; | |
| 2954 Dsymbol *parent = toParent(); | |
| 2955 cd = parent->isClassDeclaration(); | |
| 2956 if (!cd && !parent->isStructDeclaration()) | |
| 2957 { | |
| 2958 error("new allocators only are for class or struct definitions"); | |
| 2959 } | |
| 2960 type = new TypeFunction(arguments, Type::tvoid, 0, LINKd); | |
| 2961 | |
| 2962 type = type->semantic(loc, sc); | |
| 2963 assert(type->ty == Tfunction); | |
| 2964 | |
| 2965 // Check that there is only one argument of type void* | |
| 2966 TypeFunction *tf = (TypeFunction *)type; | |
| 2967 if (Argument::dim(tf->parameters) != 1) | |
| 2968 { | |
| 2969 error("one argument of type void* expected"); | |
| 2970 } | |
| 2971 else | |
| 2972 { | |
| 2973 Argument *a = Argument::getNth(tf->parameters, 0); | |
| 2974 if (!a->type->equals(Type::tvoid->pointerTo())) | |
| 2975 error("one argument of type void* expected, not %s", a->type->toChars()); | |
| 2976 } | |
| 2977 | |
| 2978 FuncDeclaration::semantic(sc); | |
| 2979 } | |
| 2980 | |
| 336 | 2981 const char *DeleteDeclaration::kind() |
| 159 | 2982 { |
| 2983 return "deallocator"; | |
| 2984 } | |
| 2985 | |
| 2986 int DeleteDeclaration::isDelete() | |
| 2987 { | |
| 2988 return TRUE; | |
| 2989 } | |
| 2990 | |
| 2991 int DeleteDeclaration::isVirtual() | |
| 2992 { | |
| 2993 return FALSE; | |
| 2994 } | |
| 2995 | |
| 2996 int DeleteDeclaration::addPreInvariant() | |
| 2997 { | |
| 2998 return FALSE; | |
| 2999 } | |
| 3000 | |
| 3001 int DeleteDeclaration::addPostInvariant() | |
| 3002 { | |
| 3003 return FALSE; | |
| 3004 } | |
| 3005 | |
| 3006 void DeleteDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3007 { | |
| 3008 buf->writestring("delete"); | |
| 3009 Argument::argsToCBuffer(buf, hgs, arguments, 0); | |
| 3010 bodyToCBuffer(buf, hgs); | |
| 3011 } | |
| 3012 | |
| 3013 | |
| 3014 | |
| 3015 |