Mercurial > projects > ldc
annotate dmd/func.c @ 1158:08c1c3bfea5a
Fix goto inside synchronized functions.
| author | Christian Kamm <kamm incasoftware de> |
|---|---|
| date | Sat, 28 Mar 2009 14:26:23 +0100 |
| parents | 1860414bf3b7 |
| children | a8b9fc41c34b |
| 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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Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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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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443
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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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Merged DMD 1.034, array operations are not yet implemented ;)
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changeset
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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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Merged DMD 1.034, array operations are not yet implemented ;)
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diff
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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 | |
| 772 // Propagate storage class from tuple parameters to their element-parameters. | |
| 773 if (f->parameters) | |
| 774 { | |
| 775 for (size_t i = 0; i < f->parameters->dim; i++) | |
| 776 { Argument *arg = (Argument *)f->parameters->data[i]; | |
| 777 | |
| 778 if (arg->type->ty == Ttuple) | |
| 779 { TypeTuple *t = (TypeTuple *)arg->type; | |
| 780 size_t dim = Argument::dim(t->arguments); | |
| 781 for (size_t j = 0; j < dim; j++) | |
| 782 { Argument *narg = Argument::getNth(t->arguments, j); | |
| 783 narg->storageClass = arg->storageClass; | |
| 784 } | |
| 785 } | |
| 786 } | |
| 787 } | |
| 788 | |
| 789 // Declare all the function parameters as variables | |
| 790 if (nparams) | |
| 791 { /* parameters[] has all the tuples removed, as the back end | |
| 792 * doesn't know about tuples | |
| 793 */ | |
| 794 parameters = new Dsymbols(); | |
| 795 parameters->reserve(nparams); | |
| 796 for (size_t i = 0; i < nparams; i++) | |
| 797 { | |
| 798 Argument *arg = Argument::getNth(f->parameters, i); | |
| 799 Identifier *id = arg->ident; | |
| 800 if (!id) | |
| 801 { | |
| 802 /* Generate identifier for un-named parameter, | |
| 803 * because we need it later on. | |
| 804 */ | |
|
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diff
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|
805 arg->ident = id = Identifier::generateId("_param_", i); |
| 159 | 806 } |
| 807 VarDeclaration *v = new VarDeclaration(loc, arg->type, id, NULL); | |
| 808 //printf("declaring parameter %s of type %s\n", v->toChars(), v->type->toChars()); | |
| 809 v->storage_class |= STCparameter; | |
| 810 if (f->varargs == 2 && i + 1 == nparams) | |
| 811 v->storage_class |= STCvariadic; | |
| 812 v->storage_class |= arg->storageClass & (STCin | STCout | STCref | STClazy); | |
| 813 if (v->storage_class & STClazy) | |
| 814 v->storage_class |= STCin; | |
| 815 v->semantic(sc2); | |
| 816 if (!sc2->insert(v)) | |
| 817 error("parameter %s.%s is already defined", toChars(), v->toChars()); | |
| 818 else | |
| 819 parameters->push(v); | |
| 820 localsymtab->insert(v); | |
| 821 v->parent = this; | |
| 822 } | |
| 823 } | |
| 824 | |
| 825 // Declare the tuple symbols and put them in the symbol table, | |
| 826 // but not in parameters[]. | |
| 827 if (f->parameters) | |
| 828 { | |
| 829 for (size_t i = 0; i < f->parameters->dim; i++) | |
| 830 { Argument *arg = (Argument *)f->parameters->data[i]; | |
| 831 | |
| 832 if (!arg->ident) | |
| 833 continue; // never used, so ignore | |
| 834 if (arg->type->ty == Ttuple) | |
| 835 { TypeTuple *t = (TypeTuple *)arg->type; | |
| 836 size_t dim = Argument::dim(t->arguments); | |
| 837 Objects *exps = new Objects(); | |
| 838 exps->setDim(dim); | |
| 839 for (size_t j = 0; j < dim; j++) | |
| 840 { Argument *narg = Argument::getNth(t->arguments, j); | |
| 841 assert(narg->ident); | |
| 842 VarDeclaration *v = sc2->search(0, narg->ident, NULL)->isVarDeclaration(); | |
| 843 assert(v); | |
|
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diff
changeset
|
844 Expression *e = new VarExp(v->loc, v); |
| 159 | 845 exps->data[j] = (void *)e; |
| 846 } | |
| 847 assert(arg->ident); | |
|
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Merged DMD 1.034, array operations are not yet implemented ;)
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diff
changeset
|
848 TupleDeclaration *v = new TupleDeclaration(loc, arg->ident, exps); |
| 159 | 849 //printf("declaring tuple %s\n", v->toChars()); |
| 850 v->isexp = 1; | |
| 851 if (!sc2->insert(v)) | |
| 852 error("parameter %s.%s is already defined", toChars(), v->toChars()); | |
| 853 localsymtab->insert(v); | |
| 854 v->parent = this; | |
| 855 } | |
| 856 } | |
| 857 } | |
| 858 | |
| 859 /* Do the semantic analysis on the [in] preconditions and | |
| 860 * [out] postconditions. | |
| 861 */ | |
| 862 sc2->incontract++; | |
| 863 | |
| 864 if (frequire) | |
| 865 { /* frequire is composed of the [in] contracts | |
| 866 */ | |
| 867 // BUG: need to error if accessing out parameters | |
| 868 // BUG: need to treat parameters as const | |
| 869 // BUG: need to disallow returns and throws | |
| 870 // BUG: verify that all in and ref parameters are read | |
| 871 frequire = frequire->semantic(sc2); | |
| 872 labtab = NULL; // so body can't refer to labels | |
| 873 } | |
| 874 | |
| 875 if (fensure || addPostInvariant()) | |
| 876 { /* fensure is composed of the [out] contracts | |
| 877 */ | |
| 878 ScopeDsymbol *sym = new ScopeDsymbol(); | |
| 879 sym->parent = sc2->scopesym; | |
| 880 sc2 = sc2->push(sym); | |
| 881 | |
| 882 assert(type->nextOf()); | |
| 883 if (type->nextOf()->ty == Tvoid) | |
| 884 { | |
| 885 if (outId) | |
| 886 error("void functions have no result"); | |
| 887 } | |
| 888 else | |
| 889 { | |
| 890 if (!outId) | |
| 891 outId = Id::result; // provide a default | |
| 892 } | |
| 893 | |
| 894 if (outId) | |
| 895 { // Declare result variable | |
| 896 VarDeclaration *v; | |
| 897 Loc loc = this->loc; | |
| 898 | |
| 899 if (fensure) | |
| 900 loc = fensure->loc; | |
| 901 | |
| 902 v = new VarDeclaration(loc, type->nextOf(), outId, NULL); | |
| 903 v->noauto = 1; | |
| 904 sc2->incontract--; | |
| 905 v->semantic(sc2); | |
| 906 sc2->incontract++; | |
| 907 if (!sc2->insert(v)) | |
| 908 error("out result %s is already defined", v->toChars()); | |
| 909 v->parent = this; | |
| 910 vresult = v; | |
| 911 | |
| 912 // vresult gets initialized with the function return value | |
| 913 // in ReturnStatement::semantic() | |
| 914 } | |
| 915 | |
| 916 // BUG: need to treat parameters as const | |
| 917 // BUG: need to disallow returns and throws | |
| 918 if (fensure) | |
| 919 { fensure = fensure->semantic(sc2); | |
| 920 labtab = NULL; // so body can't refer to labels | |
| 921 } | |
| 922 | |
| 923 if (!global.params.useOut) | |
| 924 { fensure = NULL; // discard | |
| 925 vresult = NULL; | |
| 926 } | |
| 927 | |
| 928 // Postcondition invariant | |
| 929 if (addPostInvariant()) | |
| 930 { | |
| 931 Expression *e = NULL; | |
| 932 if (isCtorDeclaration()) | |
| 933 { | |
| 934 // Call invariant directly only if it exists | |
| 935 InvariantDeclaration *inv = ad->inv; | |
| 936 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 937 | |
| 938 while (!inv && cd) | |
| 939 { | |
| 940 cd = cd->baseClass; | |
| 941 if (!cd) | |
| 942 break; | |
| 943 inv = cd->inv; | |
| 944 } | |
| 945 if (inv) | |
| 946 { | |
| 947 e = new DsymbolExp(0, inv); | |
| 948 e = new CallExp(0, e); | |
| 949 e = e->semantic(sc2); | |
| 950 } | |
| 951 } | |
| 952 else | |
| 953 { // Call invariant virtually | |
| 954 ThisExp *v = new ThisExp(0); | |
| 955 v->type = vthis->type; | |
| 956 e = new AssertExp(0, v); | |
| 957 } | |
| 958 if (e) | |
| 959 { | |
| 960 ExpStatement *s = new ExpStatement(0, e); | |
| 961 if (fensure) | |
| 962 fensure = new CompoundStatement(0, s, fensure); | |
| 963 else | |
| 964 fensure = s; | |
| 965 } | |
| 966 } | |
| 967 | |
| 968 if (fensure) | |
| 969 { returnLabel = new LabelDsymbol(Id::returnLabel); | |
| 970 LabelStatement *ls = new LabelStatement(0, Id::returnLabel, fensure); | |
| 971 ls->isReturnLabel = 1; | |
| 972 returnLabel->statement = ls; | |
| 973 } | |
| 974 sc2 = sc2->pop(); | |
| 975 } | |
| 976 | |
| 977 sc2->incontract--; | |
| 978 | |
| 979 if (fbody) | |
| 980 { ClassDeclaration *cd = isClassMember(); | |
| 981 | |
| 982 /* If this is a class constructor | |
| 983 */ | |
| 984 if (isCtorDeclaration() && cd) | |
| 985 { | |
| 986 for (int i = 0; i < cd->fields.dim; i++) | |
| 987 { VarDeclaration *v = (VarDeclaration *)cd->fields.data[i]; | |
| 988 | |
| 989 v->ctorinit = 0; | |
| 990 } | |
| 991 } | |
| 992 | |
| 993 if (inferRetType || f->retStyle() != RETstack) | |
| 994 nrvo_can = 0; | |
| 995 | |
| 996 fbody = fbody->semantic(sc2); | |
| 997 | |
| 998 if (inferRetType) | |
| 999 { // If no return type inferred yet, then infer a void | |
| 1000 if (!type->nextOf()) | |
| 1001 { | |
| 1002 ((TypeFunction *)type)->next = Type::tvoid; | |
| 1003 type = type->semantic(loc, sc); | |
| 1004 } | |
| 1005 f = (TypeFunction *)type; | |
| 1006 } | |
| 1007 | |
| 336 | 1008 int offend = fbody ? fbody->blockExit() & BEfallthru : TRUE; |
| 159 | 1009 |
| 1010 if (isStaticCtorDeclaration()) | |
| 1011 { /* It's a static constructor. Ensure that all | |
| 1012 * ctor consts were initialized. | |
| 1013 */ | |
| 1014 | |
| 1015 Dsymbol *p = toParent(); | |
| 1016 ScopeDsymbol *ad = p->isScopeDsymbol(); | |
| 1017 if (!ad) | |
| 1018 { | |
| 1019 error("static constructor can only be member of struct/class/module, not %s %s", p->kind(), p->toChars()); | |
| 1020 } | |
| 1021 else | |
| 1022 { | |
| 1023 for (int i = 0; i < ad->members->dim; i++) | |
| 1024 { Dsymbol *s = (Dsymbol *)ad->members->data[i]; | |
| 1025 | |
| 1026 s->checkCtorConstInit(); | |
| 1027 } | |
| 1028 } | |
| 1029 } | |
| 1030 | |
| 1031 if (isCtorDeclaration() && cd) | |
| 1032 { | |
| 1033 //printf("callSuper = x%x\n", sc2->callSuper); | |
| 1034 | |
| 1035 // Verify that all the ctorinit fields got initialized | |
| 1036 if (!(sc2->callSuper & CSXthis_ctor)) | |
| 1037 { | |
| 1038 for (int i = 0; i < cd->fields.dim; i++) | |
| 1039 { VarDeclaration *v = (VarDeclaration *)cd->fields.data[i]; | |
| 1040 | |
| 1041 if (v->ctorinit == 0 && v->isCtorinit()) | |
| 1042 error("missing initializer for const field %s", v->toChars()); | |
| 1043 } | |
| 1044 } | |
| 1045 | |
| 1046 if (!(sc2->callSuper & CSXany_ctor) && | |
| 1047 cd->baseClass && cd->baseClass->ctor) | |
| 1048 { | |
| 1049 sc2->callSuper = 0; | |
| 1050 | |
| 1051 // Insert implicit super() at start of fbody | |
| 1052 Expression *e1 = new SuperExp(0); | |
| 1053 Expression *e = new CallExp(0, e1); | |
| 1054 | |
| 1055 unsigned errors = global.errors; | |
| 1056 global.gag++; | |
| 1057 e = e->semantic(sc2); | |
| 1058 global.gag--; | |
| 1059 if (errors != global.errors) | |
| 1060 error("no match for implicit super() call in constructor"); | |
| 1061 | |
| 1062 Statement *s = new ExpStatement(0, e); | |
| 1063 fbody = new CompoundStatement(0, s, fbody); | |
| 1064 } | |
| 1065 } | |
| 1066 else if (fes) | |
| 1067 { // For foreach(){} body, append a return 0; | |
| 1068 Expression *e = new IntegerExp(0); | |
| 1069 Statement *s = new ReturnStatement(0, e); | |
| 1070 fbody = new CompoundStatement(0, fbody, s); | |
| 1071 assert(!returnLabel); | |
| 1072 } | |
| 1073 else if (!hasReturnExp && type->nextOf()->ty != Tvoid) | |
| 1074 error("expected to return a value of type %s", type->nextOf()->toChars()); | |
| 1075 else if (!inlineAsm) | |
| 1076 { | |
| 1077 if (type->nextOf()->ty == Tvoid) | |
| 1078 { | |
| 1079 if (offend && isMain()) | |
| 1080 { // Add a return 0; statement | |
| 1081 Statement *s = new ReturnStatement(0, new IntegerExp(0)); | |
| 1082 fbody = new CompoundStatement(0, fbody, s); | |
| 1083 } | |
| 1084 } | |
| 1085 else | |
| 1086 { | |
| 1087 if (offend) | |
| 1088 { Expression *e; | |
| 1089 | |
|
1103
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- Updated to DMD frontend 1.041.
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diff
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|
1090 warning(loc, "no return at end of function"); |
| 159 | 1091 |
| 1092 if (global.params.useAssert && | |
| 1093 !global.params.useInline) | |
| 1094 { /* Add an assert(0, msg); where the missing return | |
| 1095 * should be. | |
| 1096 */ | |
| 1097 e = new AssertExp( | |
| 1098 endloc, | |
| 1099 new IntegerExp(0), | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
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diff
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|
1100 new StringExp(loc, (char *)"missing return expression") |
| 159 | 1101 ); |
| 1102 } | |
| 1103 else | |
| 1104 e = new HaltExp(endloc); | |
| 1105 e = new CommaExp(0, e, type->nextOf()->defaultInit()); | |
| 1106 e = e->semantic(sc2); | |
| 1107 Statement *s = new ExpStatement(0, e); | |
| 1108 fbody = new CompoundStatement(0, fbody, s); | |
| 1109 } | |
| 1110 } | |
| 1111 } | |
| 1112 } | |
| 1113 | |
| 1114 { | |
| 1115 Statements *a = new Statements(); | |
| 1116 | |
| 1117 // Merge in initialization of 'out' parameters | |
| 1118 if (parameters) | |
| 1119 { for (size_t i = 0; i < parameters->dim; i++) | |
| 1120 { | |
| 1121 VarDeclaration *v = (VarDeclaration *)parameters->data[i]; | |
| 1122 if (v->storage_class & STCout) | |
| 1123 { | |
| 1124 assert(v->init); | |
| 1125 ExpInitializer *ie = v->init->isExpInitializer(); | |
| 1126 assert(ie); | |
| 1127 a->push(new ExpStatement(0, ie->exp)); | |
| 1128 } | |
| 1129 } | |
| 1130 } | |
| 1131 | |
| 1132 // we'll handle variadics ourselves | |
| 1133 #if !IN_LLVM | |
| 1134 if (argptr) | |
| 1135 { // Initialize _argptr to point past non-variadic arg | |
| 1136 #if IN_GCC | |
| 1137 // Handled in FuncDeclaration::toObjFile | |
| 1138 v_argptr = argptr; | |
| 1139 v_argptr->init = new VoidInitializer(loc); | |
| 1140 #else | |
| 1141 Expression *e1; | |
| 1142 Expression *e; | |
| 1143 Type *t = argptr->type; | |
| 1144 VarDeclaration *p; | |
| 1145 unsigned offset; | |
| 1146 | |
| 1147 e1 = new VarExp(0, argptr); | |
| 1148 if (parameters && parameters->dim) | |
| 1149 p = (VarDeclaration *)parameters->data[parameters->dim - 1]; | |
| 1150 else | |
| 1151 p = v_arguments; // last parameter is _arguments[] | |
| 1152 offset = p->type->size(); | |
| 1153 offset = (offset + 3) & ~3; // assume stack aligns on 4 | |
| 1154 e = new SymOffExp(0, p, offset); | |
| 1155 e = new AssignExp(0, e1, e); | |
| 1156 e->type = t; | |
| 1157 a->push(new ExpStatement(0, e)); | |
| 1158 #endif // IN_GCC | |
| 1159 } | |
| 1160 | |
| 1161 if (_arguments) | |
| 1162 { | |
| 1163 /* Advance to elements[] member of TypeInfo_Tuple with: | |
| 1164 * _arguments = v_arguments.elements; | |
| 1165 */ | |
| 1166 Expression *e = new VarExp(0, v_arguments); | |
| 1167 e = new DotIdExp(0, e, Id::elements); | |
| 1168 Expression *e1 = new VarExp(0, _arguments); | |
| 1169 e = new AssignExp(0, e1, e); | |
| 1170 e = e->semantic(sc); | |
| 1171 a->push(new ExpStatement(0, e)); | |
| 1172 } | |
| 1173 | |
| 1174 #endif // !IN_LLVM | |
| 1175 | |
| 1176 // Merge contracts together with body into one compound statement | |
| 1177 | |
| 1178 #ifdef _DH | |
| 1179 if (frequire && global.params.useIn) | |
| 1180 { frequire->incontract = 1; | |
| 1181 a->push(frequire); | |
| 1182 } | |
| 1183 #else | |
| 1184 if (frequire && global.params.useIn) | |
| 1185 a->push(frequire); | |
| 1186 #endif | |
| 1187 | |
| 1188 // Precondition invariant | |
| 1189 if (addPreInvariant()) | |
| 1190 { | |
| 1191 Expression *e = NULL; | |
| 1192 if (isDtorDeclaration()) | |
| 1193 { | |
| 1194 // Call invariant directly only if it exists | |
| 1195 InvariantDeclaration *inv = ad->inv; | |
| 1196 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 1197 | |
| 1198 while (!inv && cd) | |
| 1199 { | |
| 1200 cd = cd->baseClass; | |
| 1201 if (!cd) | |
| 1202 break; | |
| 1203 inv = cd->inv; | |
| 1204 } | |
| 1205 if (inv) | |
| 1206 { | |
| 1207 e = new DsymbolExp(0, inv); | |
| 1208 e = new CallExp(0, e); | |
| 1209 e = e->semantic(sc2); | |
| 1210 } | |
| 1211 } | |
| 1212 else | |
| 1213 { // Call invariant virtually | |
| 1214 ThisExp *v = new ThisExp(0); | |
| 1215 v->type = vthis->type; | |
| 1216 Expression *se = new StringExp(0, "null this"); | |
| 1217 se = se->semantic(sc); | |
| 1218 se->type = Type::tchar->arrayOf(); | |
| 1219 e = new AssertExp(loc, v, se); | |
| 1220 } | |
| 1221 if (e) | |
| 1222 { | |
| 1223 ExpStatement *s = new ExpStatement(0, e); | |
| 1224 a->push(s); | |
| 1225 } | |
| 1226 } | |
| 1227 | |
| 1228 if (fbody) | |
| 1229 a->push(fbody); | |
| 1230 | |
| 1231 if (fensure) | |
| 1232 { | |
| 1233 a->push(returnLabel->statement); | |
| 1234 | |
| 1235 if (type->nextOf()->ty != Tvoid) | |
| 1236 { | |
| 1237 // Create: return vresult; | |
| 1238 assert(vresult); | |
| 1239 Expression *e = new VarExp(0, vresult); | |
| 1240 if (tintro) | |
| 1241 { e = e->implicitCastTo(sc, tintro->nextOf()); | |
| 1242 e = e->semantic(sc); | |
| 1243 } | |
| 1244 ReturnStatement *s = new ReturnStatement(0, e); | |
| 1245 a->push(s); | |
| 1246 } | |
| 1247 } | |
| 1248 | |
| 1249 fbody = new CompoundStatement(0, a); | |
|
1141
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Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1250 |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
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parents:
1133
diff
changeset
|
1251 // 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:
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diff
changeset
|
1252 if (isSynchronized()) |
|
f99a3b393c03
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Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1253 { |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1254 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
|
1255 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
|
1256 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
|
1257 |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1258 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
|
1259 if (isStatic()) |
|
f99a3b393c03
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parents:
1133
diff
changeset
|
1260 { |
|
f99a3b393c03
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Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1261 // 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
|
1262 sync = cd->type->dotExp(sc2, new TypeExp(loc, cd->type), Id::classinfo); |
|
1141
f99a3b393c03
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Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1263 } |
|
f99a3b393c03
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Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1264 else |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1265 { |
|
f99a3b393c03
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Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1266 // 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
|
1267 sync = new VarExp(loc, vthis); |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
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parents:
1133
diff
changeset
|
1268 } |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1269 |
|
1158
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1270 // 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
|
1271 // 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
|
1272 // 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
|
1273 SynchronizedStatement* s = new SynchronizedStatement(loc, sync, NULL); |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1274 s->semantic(sc2); |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1275 s->body = fbody; |
|
f99a3b393c03
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Christian Kamm <kamm incasoftware de>
parents:
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diff
changeset
|
1276 |
|
1158
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1277 // LDC |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1278 LabelMap::iterator it, end = labmap.end(); |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1279 for (it = labmap.begin(); it != end; ++it) |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1280 if (it->second->enclosingScopeExit == NULL) |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1281 it->second->enclosingScopeExit = s; |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1282 |
|
1141
f99a3b393c03
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Christian Kamm <kamm incasoftware de>
parents:
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diff
changeset
|
1283 a = new Statements; |
|
f99a3b393c03
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Christian Kamm <kamm incasoftware de>
parents:
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diff
changeset
|
1284 a->push(s); |
|
f99a3b393c03
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Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1285 fbody = new CompoundStatement(0, a); |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1286 } |
| 159 | 1287 } |
| 1288 | |
| 1289 sc2->callSuper = 0; | |
| 1290 sc2->pop(); | |
| 1291 } | |
| 1292 semanticRun = 2; | |
| 1293 } | |
| 1294 | |
| 1295 void FuncDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1296 { | |
| 1297 //printf("FuncDeclaration::toCBuffer() '%s'\n", toChars()); | |
| 1298 | |
| 1299 type->toCBuffer(buf, ident, hgs); | |
| 1300 bodyToCBuffer(buf, hgs); | |
| 1301 } | |
| 1302 | |
| 1303 | |
| 1304 void FuncDeclaration::bodyToCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1305 { | |
| 1306 if (fbody && | |
| 1307 (!hgs->hdrgen || hgs->tpltMember || canInline(1,1)) | |
| 1308 ) | |
| 1309 { buf->writenl(); | |
| 1310 | |
| 1311 // in{} | |
| 1312 if (frequire) | |
| 1313 { buf->writestring("in"); | |
| 1314 buf->writenl(); | |
| 1315 frequire->toCBuffer(buf, hgs); | |
| 1316 } | |
| 1317 | |
| 1318 // out{} | |
| 1319 if (fensure) | |
| 1320 { buf->writestring("out"); | |
| 1321 if (outId) | |
| 1322 { buf->writebyte('('); | |
| 1323 buf->writestring(outId->toChars()); | |
| 1324 buf->writebyte(')'); | |
| 1325 } | |
| 1326 buf->writenl(); | |
| 1327 fensure->toCBuffer(buf, hgs); | |
| 1328 } | |
| 1329 | |
| 1330 if (frequire || fensure) | |
| 1331 { buf->writestring("body"); | |
| 1332 buf->writenl(); | |
| 1333 } | |
| 1334 | |
| 1335 buf->writebyte('{'); | |
| 1336 buf->writenl(); | |
| 1337 fbody->toCBuffer(buf, hgs); | |
| 1338 buf->writebyte('}'); | |
| 1339 buf->writenl(); | |
| 1340 } | |
| 1341 else | |
| 1342 { buf->writeByte(';'); | |
| 1343 buf->writenl(); | |
| 1344 } | |
| 1345 } | |
| 1346 | |
| 1347 /**************************************************** | |
| 1348 * Determine if 'this' overrides fd. | |
| 1349 * Return !=0 if it does. | |
| 1350 */ | |
| 1351 | |
| 1352 int FuncDeclaration::overrides(FuncDeclaration *fd) | |
| 1353 { int result = 0; | |
| 1354 | |
| 1355 if (fd->ident == ident) | |
| 1356 { | |
| 1357 int cov = type->covariant(fd->type); | |
| 1358 if (cov) | |
| 1359 { ClassDeclaration *cd1 = toParent()->isClassDeclaration(); | |
| 1360 ClassDeclaration *cd2 = fd->toParent()->isClassDeclaration(); | |
| 1361 | |
| 1362 if (cd1 && cd2 && cd2->isBaseOf(cd1, NULL)) | |
| 1363 result = 1; | |
| 1364 } | |
| 1365 } | |
| 1366 return result; | |
| 1367 } | |
| 1368 | |
| 1369 /************************************************* | |
| 1370 * Find index of function in vtbl[0..dim] that | |
| 1371 * this function overrides. | |
| 1372 * Returns: | |
| 1373 * -1 didn't find one | |
| 1374 * -2 can't determine because of forward references | |
| 1375 */ | |
| 1376 | |
| 1377 int FuncDeclaration::findVtblIndex(Array *vtbl, int dim) | |
| 1378 { | |
| 1379 for (int vi = 0; vi < dim; vi++) | |
| 1380 { | |
| 1381 FuncDeclaration *fdv = ((Dsymbol *)vtbl->data[vi])->isFuncDeclaration(); | |
| 1382 if (fdv && fdv->ident == ident) | |
| 1383 { | |
| 1384 int cov = type->covariant(fdv->type); | |
| 1385 //printf("\tbaseclass cov = %d\n", cov); | |
| 1386 switch (cov) | |
| 1387 { | |
| 1388 case 0: // types are distinct | |
| 1389 break; | |
| 1390 | |
| 1391 case 1: | |
| 1392 return vi; | |
| 1393 | |
| 1394 case 2: | |
| 1395 //type->print(); | |
| 1396 //fdv->type->print(); | |
| 1397 //printf("%s %s\n", type->deco, fdv->type->deco); | |
| 1398 error("of type %s overrides but is not covariant with %s of type %s", | |
| 1399 type->toChars(), fdv->toPrettyChars(), fdv->type->toChars()); | |
| 1400 break; | |
| 1401 | |
| 1402 case 3: | |
| 1403 return -2; // forward references | |
| 1404 | |
| 1405 default: | |
| 1406 assert(0); | |
| 1407 } | |
| 1408 } | |
| 1409 } | |
| 1410 return -1; | |
| 1411 } | |
| 1412 | |
| 1413 /**************************************************** | |
| 1414 * Overload this FuncDeclaration with the new one f. | |
| 1415 * Return !=0 if successful; i.e. no conflict. | |
| 1416 */ | |
| 1417 | |
| 1418 int FuncDeclaration::overloadInsert(Dsymbol *s) | |
| 1419 { | |
| 1420 FuncDeclaration *f; | |
| 1421 AliasDeclaration *a; | |
| 1422 | |
| 1423 //printf("FuncDeclaration::overloadInsert(%s)\n", s->toChars()); | |
| 1424 a = s->isAliasDeclaration(); | |
| 1425 if (a) | |
| 1426 { | |
| 1427 if (overnext) | |
| 1428 return overnext->overloadInsert(a); | |
| 1429 if (!a->aliassym && a->type->ty != Tident && a->type->ty != Tinstance) | |
| 1430 { | |
| 1431 //printf("\ta = '%s'\n", a->type->toChars()); | |
| 1432 return FALSE; | |
| 1433 } | |
| 1434 overnext = a; | |
| 1435 //printf("\ttrue: no conflict\n"); | |
| 1436 return TRUE; | |
| 1437 } | |
| 1438 f = s->isFuncDeclaration(); | |
| 1439 if (!f) | |
| 1440 return FALSE; | |
| 1441 | |
| 1442 if (type && f->type && // can be NULL for overloaded constructors | |
| 1443 f->type->covariant(type) && | |
| 1444 !isFuncAliasDeclaration()) | |
| 1445 { | |
| 1446 //printf("\tfalse: conflict %s\n", kind()); | |
| 1447 return FALSE; | |
| 1448 } | |
| 1449 | |
| 1450 if (overnext) | |
| 1451 return overnext->overloadInsert(f); | |
| 1452 overnext = f; | |
| 1453 //printf("\ttrue: no conflict\n"); | |
| 1454 return TRUE; | |
| 1455 } | |
| 1456 | |
| 1457 /******************************************** | |
| 1458 * Find function in overload list that exactly matches t. | |
| 1459 */ | |
| 1460 | |
| 1461 /*************************************************** | |
| 1462 * Visit each overloaded function in turn, and call | |
| 1463 * (*fp)(param, f) on it. | |
| 1464 * Exit when no more, or (*fp)(param, f) returns 1. | |
| 1465 * Returns: | |
| 1466 * 0 continue | |
| 1467 * 1 done | |
| 1468 */ | |
| 1469 | |
| 1470 int overloadApply(FuncDeclaration *fstart, | |
| 1471 int (*fp)(void *, FuncDeclaration *), | |
| 1472 void *param) | |
| 1473 { | |
| 1474 FuncDeclaration *f; | |
| 1475 Declaration *d; | |
| 1476 Declaration *next; | |
| 1477 | |
| 1478 for (d = fstart; d; d = next) | |
| 1479 { FuncAliasDeclaration *fa = d->isFuncAliasDeclaration(); | |
| 1480 | |
| 1481 if (fa) | |
| 1482 { | |
| 1483 if (overloadApply(fa->funcalias, fp, param)) | |
| 1484 return 1; | |
| 1485 next = fa->overnext; | |
| 1486 } | |
| 1487 else | |
| 1488 { | |
| 1489 AliasDeclaration *a = d->isAliasDeclaration(); | |
| 1490 | |
| 1491 if (a) | |
| 1492 { | |
| 1493 Dsymbol *s = a->toAlias(); | |
| 1494 next = s->isDeclaration(); | |
| 1495 if (next == a) | |
| 1496 break; | |
| 1497 if (next == fstart) | |
| 1498 break; | |
| 1499 } | |
| 1500 else | |
| 1501 { | |
| 1502 f = d->isFuncDeclaration(); | |
| 1503 if (!f) | |
| 1504 { d->error("is aliased to a function"); | |
| 1505 break; // BUG: should print error message? | |
| 1506 } | |
| 1507 if ((*fp)(param, f)) | |
| 1508 return 1; | |
| 1509 | |
| 1510 next = f->overnext; | |
| 1511 } | |
| 1512 } | |
| 1513 } | |
| 1514 return 0; | |
| 1515 } | |
| 1516 | |
| 1517 /******************************************** | |
| 1518 * Find function in overload list that exactly matches t. | |
| 1519 */ | |
| 1520 | |
| 1521 struct Param1 | |
| 1522 { | |
| 1523 Type *t; // type to match | |
| 1524 FuncDeclaration *f; // return value | |
| 1525 }; | |
| 1526 | |
| 1527 int fp1(void *param, FuncDeclaration *f) | |
| 1528 { Param1 *p = (Param1 *)param; | |
| 1529 Type *t = p->t; | |
| 1530 | |
| 1531 if (t->equals(f->type)) | |
| 1532 { p->f = f; | |
| 1533 return 1; | |
| 1534 } | |
| 1535 | |
| 336 | 1536 #if DMDV2 |
| 159 | 1537 /* Allow covariant matches, if it's just a const conversion |
| 1538 * of the return type | |
| 1539 */ | |
| 1540 if (t->ty == Tfunction) | |
| 1541 { TypeFunction *tf = (TypeFunction *)f->type; | |
| 1542 if (tf->covariant(t) == 1 && | |
| 1543 tf->nextOf()->implicitConvTo(t->nextOf()) >= MATCHconst) | |
| 1544 { | |
| 1545 p->f = f; | |
| 1546 return 1; | |
| 1547 } | |
| 1548 } | |
| 1549 #endif | |
| 1550 return 0; | |
| 1551 } | |
| 1552 | |
| 1553 FuncDeclaration *FuncDeclaration::overloadExactMatch(Type *t) | |
| 1554 { | |
| 1555 Param1 p; | |
| 1556 p.t = t; | |
| 1557 p.f = NULL; | |
| 1558 overloadApply(this, &fp1, &p); | |
| 1559 return p.f; | |
| 1560 } | |
| 1561 | |
| 1562 #if 0 | |
| 1563 FuncDeclaration *FuncDeclaration::overloadExactMatch(Type *t) | |
| 1564 { | |
| 1565 FuncDeclaration *f; | |
| 1566 Declaration *d; | |
| 1567 Declaration *next; | |
| 1568 | |
| 1569 for (d = this; d; d = next) | |
| 1570 { FuncAliasDeclaration *fa = d->isFuncAliasDeclaration(); | |
| 1571 | |
| 1572 if (fa) | |
| 1573 { | |
| 1574 FuncDeclaration *f2 = fa->funcalias->overloadExactMatch(t); | |
| 1575 if (f2) | |
| 1576 return f2; | |
| 1577 next = fa->overnext; | |
| 1578 } | |
| 1579 else | |
| 1580 { | |
| 1581 AliasDeclaration *a = d->isAliasDeclaration(); | |
| 1582 | |
| 1583 if (a) | |
| 1584 { | |
| 1585 Dsymbol *s = a->toAlias(); | |
| 1586 next = s->isDeclaration(); | |
| 1587 if (next == a) | |
| 1588 break; | |
| 1589 } | |
| 1590 else | |
| 1591 { | |
| 1592 f = d->isFuncDeclaration(); | |
| 1593 if (!f) | |
| 1594 break; // BUG: should print error message? | |
| 1595 if (t->equals(d->type)) | |
| 1596 return f; | |
| 1597 next = f->overnext; | |
| 1598 } | |
| 1599 } | |
| 1600 } | |
| 1601 return NULL; | |
| 1602 } | |
| 1603 #endif | |
| 1604 | |
| 1605 /******************************************** | |
| 1606 * Decide which function matches the arguments best. | |
| 1607 */ | |
| 1608 | |
| 1609 struct Param2 | |
| 1610 { | |
| 1611 Match *m; | |
| 1612 Expressions *arguments; | |
| 1613 }; | |
| 1614 | |
| 1615 int fp2(void *param, FuncDeclaration *f) | |
| 1616 { Param2 *p = (Param2 *)param; | |
| 1617 Match *m = p->m; | |
| 1618 Expressions *arguments = p->arguments; | |
| 1619 MATCH match; | |
| 1620 | |
| 1621 if (f != m->lastf) // skip duplicates | |
| 1622 { | |
| 1623 m->anyf = f; | |
|
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1624 TypeFunction *tf = (TypeFunction *)f->type; |
| 159 | 1625 match = (MATCH) tf->callMatch(arguments); |
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1626 //printf("1match = %d\n", match); |
| 159 | 1627 if (match != MATCHnomatch) |
| 1628 { | |
| 1629 if (match > m->last) | |
| 1630 goto LfIsBetter; | |
| 1631 | |
| 1632 if (match < m->last) | |
| 1633 goto LlastIsBetter; | |
| 1634 | |
| 1635 /* See if one of the matches overrides the other. | |
| 1636 */ | |
| 1637 if (m->lastf->overrides(f)) | |
| 1638 goto LlastIsBetter; | |
| 1639 else if (f->overrides(m->lastf)) | |
| 1640 goto LfIsBetter; | |
| 1641 | |
| 1642 Lambiguous: | |
| 1643 m->nextf = f; | |
| 1644 m->count++; | |
| 1645 return 0; | |
| 1646 | |
| 1647 LfIsBetter: | |
| 1648 m->last = match; | |
| 1649 m->lastf = f; | |
| 1650 m->count = 1; | |
| 1651 return 0; | |
| 1652 | |
| 1653 LlastIsBetter: | |
| 1654 return 0; | |
| 1655 } | |
| 1656 } | |
| 1657 return 0; | |
| 1658 } | |
| 1659 | |
| 1660 | |
| 1661 void overloadResolveX(Match *m, FuncDeclaration *fstart, Expressions *arguments) | |
| 1662 { | |
| 1663 Param2 p; | |
| 1664 p.m = m; | |
| 1665 p.arguments = arguments; | |
| 1666 overloadApply(fstart, &fp2, &p); | |
| 1667 } | |
| 1668 | |
| 1669 #if 0 | |
| 1670 // Recursive helper function | |
| 1671 | |
| 1672 void overloadResolveX(Match *m, FuncDeclaration *fstart, Expressions *arguments) | |
| 1673 { | |
| 1674 MATCH match; | |
| 1675 Declaration *d; | |
| 1676 Declaration *next; | |
| 1677 | |
| 1678 for (d = fstart; d; d = next) | |
| 1679 { | |
| 1680 FuncDeclaration *f; | |
| 1681 FuncAliasDeclaration *fa; | |
| 1682 AliasDeclaration *a; | |
| 1683 | |
| 1684 fa = d->isFuncAliasDeclaration(); | |
| 1685 if (fa) | |
| 1686 { | |
| 1687 overloadResolveX(m, fa->funcalias, arguments); | |
| 1688 next = fa->overnext; | |
| 1689 } | |
| 1690 else if ((f = d->isFuncDeclaration()) != NULL) | |
| 1691 { | |
| 1692 next = f->overnext; | |
| 1693 if (f == m->lastf) | |
| 1694 continue; // skip duplicates | |
| 1695 else | |
| 1696 { | |
| 1697 TypeFunction *tf; | |
| 1698 | |
| 1699 m->anyf = f; | |
| 1700 tf = (TypeFunction *)f->type; | |
| 1701 match = (MATCH) tf->callMatch(arguments); | |
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1702 //printf("2match = %d\n", match); |
| 159 | 1703 if (match != MATCHnomatch) |
| 1704 { | |
| 1705 if (match > m->last) | |
| 1706 goto LfIsBetter; | |
| 1707 | |
| 1708 if (match < m->last) | |
| 1709 goto LlastIsBetter; | |
| 1710 | |
| 1711 /* See if one of the matches overrides the other. | |
| 1712 */ | |
| 1713 if (m->lastf->overrides(f)) | |
| 1714 goto LlastIsBetter; | |
| 1715 else if (f->overrides(m->lastf)) | |
| 1716 goto LfIsBetter; | |
| 1717 | |
| 1718 Lambiguous: | |
| 1719 m->nextf = f; | |
| 1720 m->count++; | |
| 1721 continue; | |
| 1722 | |
| 1723 LfIsBetter: | |
| 1724 m->last = match; | |
| 1725 m->lastf = f; | |
| 1726 m->count = 1; | |
| 1727 continue; | |
| 1728 | |
| 1729 LlastIsBetter: | |
| 1730 continue; | |
| 1731 } | |
| 1732 } | |
| 1733 } | |
| 1734 else if ((a = d->isAliasDeclaration()) != NULL) | |
| 1735 { | |
| 1736 Dsymbol *s = a->toAlias(); | |
| 1737 next = s->isDeclaration(); | |
| 1738 if (next == a) | |
| 1739 break; | |
| 1740 if (next == fstart) | |
| 1741 break; | |
| 1742 } | |
| 1743 else | |
| 1744 { d->error("is aliased to a function"); | |
| 1745 break; | |
| 1746 } | |
| 1747 } | |
| 1748 } | |
| 1749 #endif | |
| 1750 | |
| 1751 FuncDeclaration *FuncDeclaration::overloadResolve(Loc loc, Expressions *arguments) | |
| 1752 { | |
| 1753 TypeFunction *tf; | |
| 1754 Match m; | |
| 1755 | |
| 1756 #if 0 | |
| 1757 printf("FuncDeclaration::overloadResolve('%s')\n", toChars()); | |
| 1758 if (arguments) | |
| 1759 { int i; | |
| 1760 | |
| 1761 for (i = 0; i < arguments->dim; i++) | |
| 1762 { Expression *arg; | |
| 1763 | |
| 1764 arg = (Expression *)arguments->data[i]; | |
| 1765 assert(arg->type); | |
| 1766 printf("\t%s: ", arg->toChars()); | |
| 1767 arg->type->print(); | |
| 1768 } | |
| 1769 } | |
| 1770 #endif | |
| 1771 | |
| 1772 memset(&m, 0, sizeof(m)); | |
| 1773 m.last = MATCHnomatch; | |
| 1774 overloadResolveX(&m, this, arguments); | |
| 1775 | |
| 1776 if (m.count == 1) // exactly one match | |
| 1777 { | |
| 1778 return m.lastf; | |
| 1779 } | |
| 1780 else | |
| 1781 { | |
| 1782 OutBuffer buf; | |
| 1783 | |
| 1784 if (arguments) | |
| 1785 { | |
| 1786 HdrGenState hgs; | |
| 1787 | |
| 1788 argExpTypesToCBuffer(&buf, arguments, &hgs); | |
| 1789 } | |
| 1790 | |
| 1791 if (m.last == MATCHnomatch) | |
| 1792 { | |
| 1793 tf = (TypeFunction *)type; | |
| 1794 | |
| 1795 //printf("tf = %s, args = %s\n", tf->deco, ((Expression *)arguments->data[0])->type->deco); | |
| 1796 error(loc, "%s does not match parameter types (%s)", | |
| 1797 Argument::argsTypesToChars(tf->parameters, tf->varargs), | |
| 1798 buf.toChars()); | |
| 1799 return m.anyf; // as long as it's not a FuncAliasDeclaration | |
| 1800 } | |
| 1801 else | |
| 1802 { | |
| 1803 #if 1 | |
| 1804 TypeFunction *t1 = (TypeFunction *)m.lastf->type; | |
| 1805 TypeFunction *t2 = (TypeFunction *)m.nextf->type; | |
| 1806 | |
| 1807 error(loc, "called with argument types:\n\t(%s)\nmatches both:\n\t%s%s\nand:\n\t%s%s", | |
| 1808 buf.toChars(), | |
| 1809 m.lastf->toPrettyChars(), Argument::argsTypesToChars(t1->parameters, t1->varargs), | |
| 1810 m.nextf->toPrettyChars(), Argument::argsTypesToChars(t2->parameters, t2->varargs)); | |
| 1811 #else | |
| 1812 error(loc, "overloads %s and %s both match argument list for %s", | |
| 1813 m.lastf->type->toChars(), | |
| 1814 m.nextf->type->toChars(), | |
| 1815 m.lastf->toChars()); | |
| 1816 #endif | |
| 1817 return m.lastf; | |
| 1818 } | |
| 1819 } | |
| 1820 } | |
| 1821 | |
| 1822 /******************************** | |
| 1823 * Labels are in a separate scope, one per function. | |
| 1824 */ | |
| 1825 | |
| 1826 LabelDsymbol *FuncDeclaration::searchLabel(Identifier *ident) | |
| 1827 { Dsymbol *s; | |
| 1828 | |
| 1829 if (!labtab) | |
| 1830 labtab = new DsymbolTable(); // guess we need one | |
| 1831 | |
| 1832 s = labtab->lookup(ident); | |
| 1833 if (!s) | |
| 1834 { | |
| 1835 s = new LabelDsymbol(ident); | |
| 1836 labtab->insert(s); | |
| 1837 } | |
| 1838 return (LabelDsymbol *)s; | |
| 1839 } | |
| 336 | 1840 |
| 159 | 1841 /**************************************** |
| 1842 * If non-static member function that has a 'this' pointer, | |
| 1843 * return the aggregate it is a member of. | |
| 1844 * Otherwise, return NULL. | |
| 1845 */ | |
| 1846 | |
| 1847 AggregateDeclaration *FuncDeclaration::isThis() | |
| 1848 { AggregateDeclaration *ad; | |
| 1849 | |
| 1850 //printf("+FuncDeclaration::isThis() '%s'\n", toChars()); | |
| 1851 ad = NULL; | |
| 1852 if ((storage_class & STCstatic) == 0) | |
| 1853 { | |
| 1854 ad = isMember2(); | |
| 1855 } | |
| 1856 //printf("-FuncDeclaration::isThis() %p\n", ad); | |
| 1857 return ad; | |
| 1858 } | |
| 1859 | |
| 1860 AggregateDeclaration *FuncDeclaration::isMember2() | |
| 1861 { AggregateDeclaration *ad; | |
| 1862 | |
| 1863 //printf("+FuncDeclaration::isMember2() '%s'\n", toChars()); | |
| 1864 ad = NULL; | |
| 1865 for (Dsymbol *s = this; s; s = s->parent) | |
| 1866 { | |
| 1867 //printf("\ts = '%s', parent = '%s', kind = %s\n", s->toChars(), s->parent->toChars(), s->parent->kind()); | |
| 1868 ad = s->isMember(); | |
| 1869 if (ad) | |
| 1870 { //printf("test4\n"); | |
| 1871 break; | |
| 1872 } | |
| 1873 if (!s->parent || | |
| 1874 (!s->parent->isTemplateInstance())) | |
| 1875 { //printf("test5\n"); | |
| 1876 break; | |
| 1877 } | |
| 1878 } | |
| 1879 //printf("-FuncDeclaration::isMember2() %p\n", ad); | |
| 1880 return ad; | |
| 1881 } | |
| 1882 | |
| 1883 /***************************************** | |
| 1884 * Determine lexical level difference from 'this' to nested function 'fd'. | |
| 1885 * Error if this cannot call fd. | |
| 1886 * Returns: | |
| 1887 * 0 same level | |
| 1888 * -1 increase nesting by 1 (fd is nested within 'this') | |
| 1889 * >0 decrease nesting by number | |
| 1890 */ | |
| 1891 | |
| 1892 int FuncDeclaration::getLevel(Loc loc, FuncDeclaration *fd) | |
| 1893 { int level; | |
| 1894 Dsymbol *s; | |
| 1895 Dsymbol *fdparent; | |
| 1896 | |
| 1897 //printf("FuncDeclaration::getLevel(fd = '%s')\n", fd->toChars()); | |
| 1898 fdparent = fd->toParent2(); | |
| 1899 if (fdparent == this) | |
| 1900 return -1; | |
| 1901 s = this; | |
| 1902 level = 0; | |
| 1903 while (fd != s && fdparent != s->toParent2()) | |
| 1904 { | |
| 1905 //printf("\ts = '%s'\n", s->toChars()); | |
| 1906 FuncDeclaration *thisfd = s->isFuncDeclaration(); | |
| 1907 if (thisfd) | |
| 1908 { if (!thisfd->isNested() && !thisfd->vthis) | |
| 1909 goto Lerr; | |
| 1910 } | |
| 1911 else | |
| 1912 { | |
| 1913 ClassDeclaration *thiscd = s->isClassDeclaration(); | |
| 1914 if (thiscd) | |
| 1915 { if (!thiscd->isNested()) | |
| 1916 goto Lerr; | |
| 1917 } | |
| 1918 else | |
| 1919 goto Lerr; | |
| 1920 } | |
| 1921 | |
| 1922 s = s->toParent2(); | |
| 1923 assert(s); | |
| 1924 level++; | |
| 1925 } | |
| 1926 return level; | |
| 1927 | |
| 1928 Lerr: | |
| 1929 error(loc, "cannot access frame of function %s", fd->toChars()); | |
| 1930 return 1; | |
| 1931 } | |
| 1932 | |
| 1933 void FuncDeclaration::appendExp(Expression *e) | |
| 1934 { Statement *s; | |
| 1935 | |
| 1936 s = new ExpStatement(0, e); | |
| 1937 appendState(s); | |
| 1938 } | |
| 1939 | |
| 1940 void FuncDeclaration::appendState(Statement *s) | |
| 1941 { CompoundStatement *cs; | |
| 1942 | |
| 1943 if (!fbody) | |
| 1944 { Statements *a; | |
| 1945 | |
| 1946 a = new Statements(); | |
| 1947 fbody = new CompoundStatement(0, a); | |
| 1948 } | |
| 1949 cs = fbody->isCompoundStatement(); | |
| 1950 cs->statements->push(s); | |
| 1951 } | |
| 1952 | |
| 1953 | |
| 1954 int FuncDeclaration::isMain() | |
| 1955 { | |
| 1956 return ident == Id::main && | |
| 1957 linkage != LINKc && !isMember() && !isNested(); | |
| 1958 } | |
| 1959 | |
| 1960 int FuncDeclaration::isWinMain() | |
| 1961 { | |
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1962 //printf("FuncDeclaration::isWinMain() %s\n", toChars()); |
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1963 #if 0 |
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1964 int x = ident == Id::WinMain && |
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1965 linkage != LINKc && !isMember(); |
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1966 printf("%s\n", x ? "yes" : "no"); |
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1967 return x; |
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1968 #else |
| 159 | 1969 return ident == Id::WinMain && |
| 1970 linkage != LINKc && !isMember(); | |
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1971 #endif |
| 159 | 1972 } |
| 1973 | |
| 1974 int FuncDeclaration::isDllMain() | |
| 1975 { | |
| 1976 return ident == Id::DllMain && | |
| 1977 linkage != LINKc && !isMember(); | |
| 1978 } | |
| 1979 | |
| 1980 int FuncDeclaration::isExport() | |
| 1981 { | |
| 1982 return protection == PROTexport; | |
| 1983 } | |
| 1984 | |
| 1985 int FuncDeclaration::isImportedSymbol() | |
| 1986 { | |
| 1987 //printf("isImportedSymbol()\n"); | |
| 1988 //printf("protection = %d\n", protection); | |
| 1989 return (protection == PROTexport) && !fbody; | |
| 1990 } | |
| 1991 | |
| 1992 // Determine if function goes into virtual function pointer table | |
| 1993 | |
| 1994 int FuncDeclaration::isVirtual() | |
| 1995 { | |
| 1996 #if 0 | |
| 1997 printf("FuncDeclaration::isVirtual(%s)\n", toChars()); | |
| 1998 printf("%p %d %d %d %d\n", isMember(), isStatic(), protection == PROTprivate, isCtorDeclaration(), linkage != LINKd); | |
| 1999 printf("result is %d\n", | |
| 2000 isMember() && | |
| 2001 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && | |
| 2002 toParent()->isClassDeclaration()); | |
| 2003 #endif | |
| 2004 return isMember() && | |
| 2005 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && | |
| 2006 toParent()->isClassDeclaration(); | |
| 2007 } | |
| 2008 | |
|
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2009 int FuncDeclaration::isFinal() |
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2010 { |
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2011 ClassDeclaration *cd; |
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2012 #if 0 |
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2013 printf("FuncDeclaration::isFinal(%s)\n", toChars()); |
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2014 printf("%p %d %d %d %d\n", isMember(), isStatic(), protection == PROTprivate, isCtorDeclaration(), linkage != LINKd); |
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2015 printf("result is %d\n", |
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2016 isMember() && |
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2017 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && |
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2018 (cd = toParent()->isClassDeclaration()) != NULL && |
|
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2019 cd->storage_class & STCfinal); |
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2020 #endif |
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2021 return isMember() && |
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2022 (Declaration::isFinal() || |
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2023 ((cd = toParent()->isClassDeclaration()) != NULL && cd->storage_class & STCfinal)); |
|
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2024 } |
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2025 |
| 159 | 2026 int FuncDeclaration::isAbstract() |
| 2027 { | |
| 2028 return storage_class & STCabstract; | |
| 2029 } | |
| 2030 | |
| 2031 int FuncDeclaration::isCodeseg() | |
| 2032 { | |
| 2033 return TRUE; // functions are always in the code segment | |
| 2034 } | |
| 2035 | |
| 2036 // Determine if function needs | |
| 2037 // a static frame pointer to its lexically enclosing function | |
| 2038 | |
| 2039 int FuncDeclaration::isNested() | |
| 2040 { | |
| 2041 //if (!toParent()) | |
| 2042 //printf("FuncDeclaration::isNested('%s') parent=%p\n", toChars(), parent); | |
| 2043 //printf("\ttoParent() = '%s'\n", toParent()->toChars()); | |
| 2044 return ((storage_class & STCstatic) == 0) && | |
| 2045 (toParent2()->isFuncDeclaration() != NULL); | |
| 2046 } | |
| 2047 | |
| 2048 int FuncDeclaration::needThis() | |
| 2049 { | |
| 2050 //printf("FuncDeclaration::needThis() '%s'\n", toChars()); | |
| 2051 int i = isThis() != NULL; | |
| 2052 //printf("\t%d\n", i); | |
| 2053 if (!i && isFuncAliasDeclaration()) | |
| 2054 i = ((FuncAliasDeclaration *)this)->funcalias->needThis(); | |
| 2055 return i; | |
| 2056 } | |
| 2057 | |
| 2058 int FuncDeclaration::addPreInvariant() | |
| 2059 { | |
| 2060 AggregateDeclaration *ad = isThis(); | |
| 2061 return (ad && | |
| 2062 //ad->isClassDeclaration() && | |
| 2063 global.params.useInvariants && | |
| 2064 (protection == PROTpublic || protection == PROTexport) && | |
| 2065 !naked); | |
| 2066 } | |
| 2067 | |
| 2068 int FuncDeclaration::addPostInvariant() | |
| 2069 { | |
| 2070 AggregateDeclaration *ad = isThis(); | |
| 2071 return (ad && | |
| 2072 ad->inv && | |
| 2073 //ad->isClassDeclaration() && | |
| 2074 global.params.useInvariants && | |
| 2075 (protection == PROTpublic || protection == PROTexport) && | |
| 2076 !naked); | |
| 2077 } | |
| 2078 | |
| 2079 /********************************** | |
| 2080 * Generate a FuncDeclaration for a runtime library function. | |
| 2081 */ | |
| 2082 | |
|
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2083 // |
|
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2084 // LDC: Adjusted to give argument info to the runtime function decl. |
|
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2085 // |
|
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2086 |
|
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|
2087 FuncDeclaration *FuncDeclaration::genCfunc(Arguments *args, Type *treturn, const char *name) |
| 159 | 2088 { |
|
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|
2089 return genCfunc(args, treturn, Lexer::idPool(name)); |
| 159 | 2090 } |
| 2091 | |
|
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|
2092 FuncDeclaration *FuncDeclaration::genCfunc(Arguments *args, Type *treturn, Identifier *id) |
| 159 | 2093 { |
| 2094 FuncDeclaration *fd; | |
| 2095 TypeFunction *tf; | |
| 2096 Dsymbol *s; | |
| 2097 static DsymbolTable *st = NULL; | |
| 2098 | |
| 2099 //printf("genCfunc(name = '%s')\n", id->toChars()); | |
| 2100 //printf("treturn\n\t"); treturn->print(); | |
| 2101 | |
| 2102 // See if already in table | |
| 2103 if (!st) | |
| 2104 st = new DsymbolTable(); | |
| 2105 s = st->lookup(id); | |
| 2106 if (s) | |
| 2107 { | |
| 2108 fd = s->isFuncDeclaration(); | |
| 2109 assert(fd); | |
| 2110 assert(fd->type->nextOf()->equals(treturn)); | |
| 2111 } | |
| 2112 else | |
| 2113 { | |
|
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|
2114 tf = new TypeFunction(args, treturn, 0, LINKc); |
| 159 | 2115 fd = new FuncDeclaration(0, 0, id, STCstatic, tf); |
| 2116 fd->protection = PROTpublic; | |
| 2117 fd->linkage = LINKc; | |
| 2118 | |
| 2119 st->insert(fd); | |
| 2120 } | |
| 2121 return fd; | |
| 2122 } | |
| 2123 | |
| 336 | 2124 const char *FuncDeclaration::kind() |
| 159 | 2125 { |
| 2126 return "function"; | |
| 2127 } | |
| 336 | 2128 |
| 159 | 2129 /******************************* |
| 2130 * Look at all the variables in this function that are referenced | |
| 2131 * by nested functions, and determine if a closure needs to be | |
| 2132 * created for them. | |
| 2133 */ | |
| 2134 | |
| 336 | 2135 #if DMDV2 |
| 159 | 2136 int FuncDeclaration::needsClosure() |
| 2137 { | |
| 2138 /* Need a closure for all the closureVars[] if any of the | |
| 2139 * closureVars[] are accessed by a | |
| 2140 * function that escapes the scope of this function. | |
| 2141 * We take the conservative approach and decide that any function that: | |
| 2142 * 1) is a virtual function | |
| 2143 * 2) has its address taken | |
| 2144 * 3) has a parent that escapes | |
| 336 | 2145 * |
| 2146 * Note that since a non-virtual function can be called by | |
| 2147 * a virtual one, if that non-virtual function accesses a closure | |
| 2148 * var, the closure still has to be taken. Hence, we check for isThis() | |
| 2149 * instead of isVirtual(). (thanks to David Friedman) | |
| 159 | 2150 */ |
| 2151 | |
| 2152 //printf("FuncDeclaration::needsClosure() %s\n", toChars()); | |
| 2153 for (int i = 0; i < closureVars.dim; i++) | |
| 2154 { VarDeclaration *v = (VarDeclaration *)closureVars.data[i]; | |
| 2155 assert(v->isVarDeclaration()); | |
| 2156 //printf("\tv = %s\n", v->toChars()); | |
| 2157 | |
| 2158 for (int j = 0; j < v->nestedrefs.dim; j++) | |
| 2159 { FuncDeclaration *f = (FuncDeclaration *)v->nestedrefs.data[j]; | |
| 2160 assert(f != this); | |
| 2161 | |
| 2162 //printf("\t\tf = %s, %d, %d\n", f->toChars(), f->isVirtual(), f->tookAddressOf); | |
| 336 | 2163 if (f->isThis() || f->tookAddressOf) |
| 159 | 2164 goto Lyes; // assume f escapes this function's scope |
| 2165 | |
| 2166 // Look to see if any parents of f that are below this escape | |
|
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|
2167 for (Dsymbol *s = f->parent; s && s != this; s = s->parent) |
| 159 | 2168 { |
| 2169 f = s->isFuncDeclaration(); | |
| 336 | 2170 if (f && (f->isThis() || f->tookAddressOf)) |
| 159 | 2171 goto Lyes; |
| 2172 } | |
| 2173 } | |
| 2174 } | |
| 2175 return 0; | |
| 2176 | |
| 2177 Lyes: | |
| 2178 //printf("\tneeds closure\n"); | |
| 2179 return 1; | |
| 2180 } | |
| 2181 #endif | |
| 2182 | |
| 2183 /****************************** FuncAliasDeclaration ************************/ | |
| 2184 | |
| 2185 // Used as a way to import a set of functions from another scope into this one. | |
| 2186 | |
| 2187 FuncAliasDeclaration::FuncAliasDeclaration(FuncDeclaration *funcalias) | |
| 2188 : FuncDeclaration(funcalias->loc, funcalias->endloc, funcalias->ident, | |
| 2189 (enum STC)funcalias->storage_class, funcalias->type) | |
| 2190 { | |
| 2191 assert(funcalias != this); | |
| 2192 this->funcalias = funcalias; | |
| 2193 } | |
| 2194 | |
| 336 | 2195 const char *FuncAliasDeclaration::kind() |
| 159 | 2196 { |
| 2197 return "function alias"; | |
| 2198 } | |
| 2199 | |
| 2200 | |
| 2201 /****************************** FuncLiteralDeclaration ************************/ | |
| 2202 | |
| 2203 FuncLiteralDeclaration::FuncLiteralDeclaration(Loc loc, Loc endloc, Type *type, | |
| 2204 enum TOK tok, ForeachStatement *fes) | |
| 2205 : FuncDeclaration(loc, endloc, NULL, STCundefined, type) | |
| 2206 { | |
|
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Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
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diff
changeset
|
2207 const char *id; |
| 159 | 2208 |
| 2209 if (fes) | |
| 2210 id = "__foreachbody"; | |
| 2211 else if (tok == TOKdelegate) | |
| 2212 id = "__dgliteral"; | |
| 2213 else | |
| 2214 id = "__funcliteral"; | |
| 2215 this->ident = Identifier::generateId(id); | |
| 2216 this->tok = tok; | |
| 2217 this->fes = fes; | |
| 2218 //printf("FuncLiteralDeclaration() id = '%s', type = '%s'\n", this->ident->toChars(), type->toChars()); | |
| 2219 } | |
| 2220 | |
| 2221 Dsymbol *FuncLiteralDeclaration::syntaxCopy(Dsymbol *s) | |
| 2222 { | |
| 2223 FuncLiteralDeclaration *f; | |
| 2224 | |
| 2225 //printf("FuncLiteralDeclaration::syntaxCopy('%s')\n", toChars()); | |
| 2226 if (s) | |
| 2227 f = (FuncLiteralDeclaration *)s; | |
| 2228 else | |
| 2229 f = new FuncLiteralDeclaration(loc, endloc, type->syntaxCopy(), tok, fes); | |
| 2230 FuncDeclaration::syntaxCopy(f); | |
| 2231 return f; | |
| 2232 } | |
| 2233 | |
| 2234 int FuncLiteralDeclaration::isNested() | |
| 2235 { | |
| 2236 //printf("FuncLiteralDeclaration::isNested() '%s'\n", toChars()); | |
| 2237 return (tok == TOKdelegate); | |
| 2238 } | |
| 2239 | |
| 336 | 2240 int FuncLiteralDeclaration::isVirtual() |
| 2241 { | |
| 2242 return FALSE; | |
| 2243 } | |
| 2244 | |
| 2245 const char *FuncLiteralDeclaration::kind() | |
| 159 | 2246 { |
| 2247 // GCC requires the (char*) casts | |
| 2248 return (tok == TOKdelegate) ? (char*)"delegate" : (char*)"function"; | |
| 2249 } | |
| 2250 | |
| 2251 void FuncLiteralDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2252 { | |
| 2253 static Identifier *idfunc; | |
| 2254 static Identifier *iddel; | |
| 2255 | |
| 2256 if (!idfunc) | |
| 2257 idfunc = new Identifier("function", 0); | |
| 2258 if (!iddel) | |
| 2259 iddel = new Identifier("delegate", 0); | |
| 2260 | |
| 2261 type->toCBuffer(buf, ((tok == TOKdelegate) ? iddel : idfunc), hgs); | |
| 2262 bodyToCBuffer(buf, hgs); | |
| 2263 } | |
| 2264 | |
| 2265 | |
| 2266 /********************************* CtorDeclaration ****************************/ | |
| 2267 | |
| 2268 CtorDeclaration::CtorDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs) | |
| 2269 : FuncDeclaration(loc, endloc, Id::ctor, STCundefined, NULL) | |
| 2270 { | |
| 2271 this->arguments = arguments; | |
| 2272 this->varargs = varargs; | |
|
510
6aee82889553
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
2273 //printf("CtorDeclaration(loc = %s) %s\n", loc.toChars(), toChars()); |
| 159 | 2274 } |
| 2275 | |
| 2276 Dsymbol *CtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2277 { | |
| 2278 CtorDeclaration *f; | |
| 2279 | |
| 2280 f = new CtorDeclaration(loc, endloc, NULL, varargs); | |
| 2281 | |
| 2282 f->outId = outId; | |
| 2283 f->frequire = frequire ? frequire->syntaxCopy() : NULL; | |
| 2284 f->fensure = fensure ? fensure->syntaxCopy() : NULL; | |
| 2285 f->fbody = fbody ? fbody->syntaxCopy() : NULL; | |
| 2286 assert(!fthrows); // deprecated | |
| 2287 | |
| 2288 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2289 return f; | |
| 2290 } | |
| 2291 | |
| 2292 | |
| 2293 void CtorDeclaration::semantic(Scope *sc) | |
| 2294 { | |
| 2295 ClassDeclaration *cd; | |
| 2296 Type *tret; | |
| 2297 | |
| 2298 //printf("CtorDeclaration::semantic()\n"); | |
| 2299 if (type) | |
| 2300 return; | |
| 2301 | |
| 2302 sc = sc->push(); | |
| 2303 sc->stc &= ~STCstatic; // not a static constructor | |
| 2304 | |
| 2305 parent = sc->parent; | |
| 2306 Dsymbol *parent = toParent(); | |
| 2307 cd = parent->isClassDeclaration(); | |
| 2308 if (!cd) | |
| 2309 { | |
| 2310 error("constructors are only for class definitions"); | |
|
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diff
changeset
|
2311 fatal(); |
| 159 | 2312 tret = Type::tvoid; |
| 2313 } | |
| 2314 else | |
| 2315 tret = cd->type; //->referenceTo(); | |
| 2316 type = new TypeFunction(arguments, tret, varargs, LINKd); | |
| 336 | 2317 if (!originalType) |
| 2318 originalType = type; | |
| 159 | 2319 |
| 2320 sc->flags |= SCOPEctor; | |
| 2321 type = type->semantic(loc, sc); | |
| 2322 sc->flags &= ~SCOPEctor; | |
| 2323 | |
| 2324 // Append: | |
| 2325 // return this; | |
| 2326 // to the function body | |
| 2327 if (fbody) | |
| 2328 { Expression *e; | |
| 2329 Statement *s; | |
| 2330 | |
| 2331 e = new ThisExp(0); | |
| 2332 s = new ReturnStatement(0, e); | |
| 2333 fbody = new CompoundStatement(0, fbody, s); | |
| 2334 } | |
| 2335 | |
| 2336 FuncDeclaration::semantic(sc); | |
| 2337 | |
| 2338 sc->pop(); | |
| 2339 | |
| 2340 // See if it's the default constructor | |
| 2341 if (cd && varargs == 0 && Argument::dim(arguments) == 0) | |
| 2342 cd->defaultCtor = this; | |
| 2343 } | |
| 2344 | |
| 336 | 2345 const char *CtorDeclaration::kind() |
| 159 | 2346 { |
| 2347 return "constructor"; | |
| 2348 } | |
| 2349 | |
| 2350 char *CtorDeclaration::toChars() | |
| 2351 { | |
|
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diff
changeset
|
2352 return (char *)"this"; |
| 159 | 2353 } |
| 2354 | |
| 2355 int CtorDeclaration::isVirtual() | |
| 2356 { | |
| 2357 return FALSE; | |
| 2358 } | |
| 2359 | |
| 2360 int CtorDeclaration::addPreInvariant() | |
| 2361 { | |
| 2362 return FALSE; | |
| 2363 } | |
| 2364 | |
| 2365 int CtorDeclaration::addPostInvariant() | |
| 2366 { | |
| 2367 return (vthis && global.params.useInvariants); | |
| 2368 } | |
| 2369 | |
| 2370 | |
| 2371 void CtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2372 { | |
| 2373 buf->writestring("this"); | |
| 2374 Argument::argsToCBuffer(buf, hgs, arguments, varargs); | |
| 2375 bodyToCBuffer(buf, hgs); | |
| 2376 } | |
| 2377 | |
| 2378 /********************************* DtorDeclaration ****************************/ | |
| 2379 | |
| 2380 DtorDeclaration::DtorDeclaration(Loc loc, Loc endloc) | |
| 2381 : FuncDeclaration(loc, endloc, Id::dtor, STCundefined, NULL) | |
| 2382 { | |
| 2383 } | |
| 2384 | |
| 2385 DtorDeclaration::DtorDeclaration(Loc loc, Loc endloc, Identifier *id) | |
| 2386 : FuncDeclaration(loc, endloc, id, STCundefined, NULL) | |
| 2387 { | |
| 2388 } | |
| 2389 | |
| 2390 Dsymbol *DtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2391 { | |
| 2392 assert(!s); | |
| 2393 DtorDeclaration *dd = new DtorDeclaration(loc, endloc, ident); | |
| 2394 return FuncDeclaration::syntaxCopy(dd); | |
| 2395 } | |
| 2396 | |
| 2397 | |
| 2398 void DtorDeclaration::semantic(Scope *sc) | |
| 2399 { | |
| 2400 ClassDeclaration *cd; | |
| 2401 | |
| 2402 parent = sc->parent; | |
| 2403 Dsymbol *parent = toParent(); | |
| 2404 cd = parent->isClassDeclaration(); | |
| 2405 if (!cd) | |
| 2406 { | |
| 2407 error("destructors only are for class definitions"); | |
|
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|
2408 fatal(); |
| 159 | 2409 } |
| 2410 else | |
| 2411 cd->dtors.push(this); | |
| 2412 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2413 | |
| 2414 sc = sc->push(); | |
| 2415 sc->stc &= ~STCstatic; // not a static destructor | |
| 2416 sc->linkage = LINKd; | |
| 2417 | |
| 2418 FuncDeclaration::semantic(sc); | |
| 2419 | |
| 2420 sc->pop(); | |
| 2421 } | |
| 2422 | |
| 2423 int DtorDeclaration::overloadInsert(Dsymbol *s) | |
| 2424 { | |
| 2425 return FALSE; // cannot overload destructors | |
| 2426 } | |
| 2427 | |
| 2428 int DtorDeclaration::addPreInvariant() | |
| 2429 { | |
| 2430 return (vthis && global.params.useInvariants); | |
| 2431 } | |
| 2432 | |
| 2433 int DtorDeclaration::addPostInvariant() | |
| 2434 { | |
| 2435 return FALSE; | |
| 2436 } | |
| 2437 | |
| 2438 int DtorDeclaration::isVirtual() | |
| 2439 { | |
| 2440 /* This should be FALSE so that dtor's don't get put into the vtbl[], | |
| 2441 * but doing so will require recompiling everything. | |
| 2442 */ | |
| 2443 #if BREAKABI | |
| 2444 return FALSE; | |
| 2445 #else | |
| 2446 return FuncDeclaration::isVirtual(); | |
| 2447 #endif | |
| 2448 } | |
| 2449 | |
| 2450 void DtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2451 { | |
| 2452 if (hgs->hdrgen) | |
| 2453 return; | |
| 2454 buf->writestring("~this()"); | |
| 2455 bodyToCBuffer(buf, hgs); | |
| 2456 } | |
| 2457 | |
| 2458 /********************************* StaticCtorDeclaration ****************************/ | |
| 2459 | |
| 2460 StaticCtorDeclaration::StaticCtorDeclaration(Loc loc, Loc endloc) | |
| 2461 : FuncDeclaration(loc, endloc, | |
|
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|
2462 Identifier::generateId("_staticCtor"), STCstatic, NULL) |
| 159 | 2463 { |
| 2464 } | |
| 2465 | |
| 2466 Dsymbol *StaticCtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2467 { | |
| 2468 StaticCtorDeclaration *scd; | |
| 2469 | |
| 2470 assert(!s); | |
| 2471 scd = new StaticCtorDeclaration(loc, endloc); | |
| 2472 return FuncDeclaration::syntaxCopy(scd); | |
| 2473 } | |
| 2474 | |
| 2475 | |
| 2476 void StaticCtorDeclaration::semantic(Scope *sc) | |
| 2477 { | |
| 2478 //printf("StaticCtorDeclaration::semantic()\n"); | |
| 2479 | |
| 2480 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2481 | |
| 336 | 2482 /* If the static ctor appears within a template instantiation, |
| 2483 * it could get called multiple times by the module constructors | |
| 2484 * for different modules. Thus, protect it with a gate. | |
| 2485 */ | |
| 2486 if (inTemplateInstance()) | |
| 2487 { | |
| 2488 /* Add this prefix to the function: | |
| 2489 * static int gate; | |
| 2490 * if (++gate != 1) return; | |
| 2491 * Note that this is not thread safe; should not have threads | |
| 2492 * during static construction. | |
| 2493 */ | |
| 2494 Identifier *id = Lexer::idPool("__gate"); | |
| 2495 VarDeclaration *v = new VarDeclaration(0, Type::tint32, id, NULL); | |
| 2496 v->storage_class = STCstatic; | |
| 2497 Statements *sa = new Statements(); | |
| 2498 Statement *s = new DeclarationStatement(0, v); | |
| 2499 sa->push(s); | |
| 2500 Expression *e = new IdentifierExp(0, id); | |
| 2501 e = new AddAssignExp(0, e, new IntegerExp(1)); | |
| 2502 e = new EqualExp(TOKnotequal, 0, e, new IntegerExp(1)); | |
| 2503 s = new IfStatement(0, NULL, e, new ReturnStatement(0, NULL), NULL); | |
| 2504 sa->push(s); | |
| 2505 if (fbody) | |
| 2506 sa->push(fbody); | |
| 2507 fbody = new CompoundStatement(0, sa); | |
| 2508 } | |
| 2509 | |
| 159 | 2510 FuncDeclaration::semantic(sc); |
| 2511 | |
| 2512 // We're going to need ModuleInfo | |
| 2513 Module *m = getModule(); | |
| 2514 if (!m) | |
| 2515 m = sc->module; | |
| 2516 if (m) | |
| 2517 { m->needmoduleinfo = 1; | |
| 2518 #ifdef IN_GCC | |
| 2519 m->strictlyneedmoduleinfo = 1; | |
| 2520 #endif | |
| 2521 } | |
| 2522 } | |
| 2523 | |
| 2524 AggregateDeclaration *StaticCtorDeclaration::isThis() | |
| 2525 { | |
| 2526 return NULL; | |
| 2527 } | |
| 2528 | |
| 2529 int StaticCtorDeclaration::isStaticConstructor() | |
| 2530 { | |
| 2531 return TRUE; | |
| 2532 } | |
| 2533 | |
| 2534 int StaticCtorDeclaration::isVirtual() | |
| 2535 { | |
| 2536 return FALSE; | |
| 2537 } | |
| 2538 | |
| 2539 int StaticCtorDeclaration::addPreInvariant() | |
| 2540 { | |
| 2541 return FALSE; | |
| 2542 } | |
| 2543 | |
| 2544 int StaticCtorDeclaration::addPostInvariant() | |
| 2545 { | |
| 2546 return FALSE; | |
| 2547 } | |
| 2548 | |
| 2549 void StaticCtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2550 { | |
| 2551 if (hgs->hdrgen) | |
| 2552 { buf->writestring("static this();\n"); | |
| 2553 return; | |
| 2554 } | |
| 2555 buf->writestring("static this()"); | |
| 2556 bodyToCBuffer(buf, hgs); | |
| 2557 } | |
| 2558 | |
| 2559 /********************************* StaticDtorDeclaration ****************************/ | |
| 2560 | |
| 2561 StaticDtorDeclaration::StaticDtorDeclaration(Loc loc, Loc endloc) | |
| 2562 : FuncDeclaration(loc, endloc, | |
|
957
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Backed out changeset [369996c08420].
Christian Kamm <kamm incasoftware de>
parents:
956
diff
changeset
|
2563 Identifier::generateId("_staticDtor"), STCstatic, NULL) |
| 159 | 2564 { |
| 336 | 2565 vgate = NULL; |
| 159 | 2566 } |
| 2567 | |
| 2568 Dsymbol *StaticDtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2569 { | |
| 2570 StaticDtorDeclaration *sdd; | |
| 2571 | |
| 2572 assert(!s); | |
| 2573 sdd = new StaticDtorDeclaration(loc, endloc); | |
| 2574 return FuncDeclaration::syntaxCopy(sdd); | |
| 2575 } | |
| 2576 | |
| 2577 | |
| 2578 void StaticDtorDeclaration::semantic(Scope *sc) | |
| 2579 { | |
| 2580 ClassDeclaration *cd; | |
| 2581 Type *tret; | |
| 2582 | |
| 2583 cd = sc->scopesym->isClassDeclaration(); | |
| 2584 if (!cd) | |
| 2585 { | |
| 2586 } | |
| 2587 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2588 | |
| 336 | 2589 /* If the static ctor appears within a template instantiation, |
| 2590 * it could get called multiple times by the module constructors | |
| 2591 * for different modules. Thus, protect it with a gate. | |
| 2592 */ | |
| 2593 if (inTemplateInstance()) | |
| 2594 { | |
| 2595 /* Add this prefix to the function: | |
| 2596 * static int gate; | |
| 2597 * if (--gate != 0) return; | |
| 2598 * Increment gate during constructor execution. | |
| 2599 * Note that this is not thread safe; should not have threads | |
| 2600 * during static destruction. | |
| 2601 */ | |
| 2602 Identifier *id = Lexer::idPool("__gate"); | |
| 2603 VarDeclaration *v = new VarDeclaration(0, Type::tint32, id, NULL); | |
| 2604 v->storage_class = STCstatic; | |
| 2605 Statements *sa = new Statements(); | |
| 2606 Statement *s = new DeclarationStatement(0, v); | |
| 2607 sa->push(s); | |
| 2608 Expression *e = new IdentifierExp(0, id); | |
|
937
6c09179ebba0
Fixed warning on osx as per request from mwarning.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
891
diff
changeset
|
2609 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
|
2610 e = new EqualExp(TOKnotequal, 0, e, new IntegerExp(0)); |
| 336 | 2611 s = new IfStatement(0, NULL, e, new ReturnStatement(0, NULL), NULL); |
| 2612 sa->push(s); | |
| 2613 if (fbody) | |
| 2614 sa->push(fbody); | |
| 2615 fbody = new CompoundStatement(0, sa); | |
| 2616 vgate = v; | |
| 2617 } | |
| 2618 | |
| 159 | 2619 FuncDeclaration::semantic(sc); |
| 2620 | |
| 2621 // We're going to need ModuleInfo | |
| 2622 Module *m = getModule(); | |
| 2623 if (!m) | |
| 2624 m = sc->module; | |
| 2625 if (m) | |
| 2626 { m->needmoduleinfo = 1; | |
| 2627 #ifdef IN_GCC | |
| 2628 m->strictlyneedmoduleinfo = 1; | |
| 2629 #endif | |
| 2630 } | |
| 2631 } | |
| 2632 | |
| 2633 AggregateDeclaration *StaticDtorDeclaration::isThis() | |
| 2634 { | |
| 2635 return NULL; | |
| 2636 } | |
| 2637 | |
| 2638 int StaticDtorDeclaration::isStaticDestructor() | |
| 2639 { | |
| 2640 return TRUE; | |
| 2641 } | |
| 2642 | |
| 2643 int StaticDtorDeclaration::isVirtual() | |
| 2644 { | |
| 2645 return FALSE; | |
| 2646 } | |
| 2647 | |
| 2648 int StaticDtorDeclaration::addPreInvariant() | |
| 2649 { | |
| 2650 return FALSE; | |
| 2651 } | |
| 2652 | |
| 2653 int StaticDtorDeclaration::addPostInvariant() | |
| 2654 { | |
| 2655 return FALSE; | |
| 2656 } | |
| 2657 | |
| 2658 void StaticDtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2659 { | |
| 2660 if (hgs->hdrgen) | |
| 2661 return; | |
| 2662 buf->writestring("static ~this()"); | |
| 2663 bodyToCBuffer(buf, hgs); | |
| 2664 } | |
| 2665 | |
| 2666 /********************************* InvariantDeclaration ****************************/ | |
| 2667 | |
| 2668 InvariantDeclaration::InvariantDeclaration(Loc loc, Loc endloc) | |
| 2669 : FuncDeclaration(loc, endloc, Id::classInvariant, STCundefined, NULL) | |
| 2670 { | |
| 2671 } | |
| 2672 | |
| 2673 Dsymbol *InvariantDeclaration::syntaxCopy(Dsymbol *s) | |
| 2674 { | |
| 2675 InvariantDeclaration *id; | |
| 2676 | |
| 2677 assert(!s); | |
| 2678 id = new InvariantDeclaration(loc, endloc); | |
| 2679 FuncDeclaration::syntaxCopy(id); | |
| 2680 return id; | |
| 2681 } | |
| 2682 | |
| 2683 | |
| 2684 void InvariantDeclaration::semantic(Scope *sc) | |
| 2685 { | |
| 2686 AggregateDeclaration *ad; | |
| 2687 Type *tret; | |
| 2688 | |
| 2689 parent = sc->parent; | |
| 2690 Dsymbol *parent = toParent(); | |
| 2691 ad = parent->isAggregateDeclaration(); | |
| 2692 if (!ad) | |
| 2693 { | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
957
diff
changeset
|
2694 error("invariants are only for struct/union/class definitions"); |
| 159 | 2695 return; |
| 2696 } | |
| 2697 else if (ad->inv && ad->inv != this) | |
| 2698 { | |
| 2699 error("more than one invariant for %s", ad->toChars()); | |
| 2700 } | |
| 2701 ad->inv = this; | |
| 2702 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2703 | |
| 2704 sc = sc->push(); | |
| 2705 sc->stc &= ~STCstatic; // not a static invariant | |
| 2706 sc->incontract++; | |
| 2707 sc->linkage = LINKd; | |
| 2708 | |
| 2709 FuncDeclaration::semantic(sc); | |
| 2710 | |
| 2711 sc->pop(); | |
| 2712 } | |
| 2713 | |
| 2714 int InvariantDeclaration::isVirtual() | |
| 2715 { | |
| 2716 return FALSE; | |
| 2717 } | |
| 2718 | |
| 2719 int InvariantDeclaration::addPreInvariant() | |
| 2720 { | |
| 2721 return FALSE; | |
| 2722 } | |
| 2723 | |
| 2724 int InvariantDeclaration::addPostInvariant() | |
| 2725 { | |
| 2726 return FALSE; | |
| 2727 } | |
| 2728 | |
| 2729 void InvariantDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2730 { | |
| 2731 if (hgs->hdrgen) | |
| 2732 return; | |
| 2733 buf->writestring("invariant"); | |
| 2734 bodyToCBuffer(buf, hgs); | |
| 2735 } | |
| 2736 | |
| 2737 | |
| 2738 /********************************* UnitTestDeclaration ****************************/ | |
| 2739 | |
| 2740 /******************************* | |
| 2741 * Generate unique unittest function Id so we can have multiple | |
| 2742 * instances per module. | |
| 2743 */ | |
| 2744 | |
| 2745 static Identifier *unitTestId() | |
| 2746 { | |
| 336 | 2747 return Lexer::uniqueId("__unittest"); |
| 159 | 2748 } |
| 2749 | |
| 2750 UnitTestDeclaration::UnitTestDeclaration(Loc loc, Loc endloc) | |
| 2751 : FuncDeclaration(loc, endloc, unitTestId(), STCundefined, NULL) | |
| 2752 { | |
| 2753 } | |
| 2754 | |
| 2755 Dsymbol *UnitTestDeclaration::syntaxCopy(Dsymbol *s) | |
| 2756 { | |
| 2757 UnitTestDeclaration *utd; | |
| 2758 | |
| 2759 assert(!s); | |
| 2760 utd = new UnitTestDeclaration(loc, endloc); | |
| 2761 return FuncDeclaration::syntaxCopy(utd); | |
| 2762 } | |
| 2763 | |
| 2764 | |
| 2765 void UnitTestDeclaration::semantic(Scope *sc) | |
| 2766 { | |
| 2767 if (global.params.useUnitTests) | |
| 2768 { | |
| 2769 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
|
2770 Scope *sc2 = sc->push(); |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
2771 sc2->linkage = LINKd; |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
2772 FuncDeclaration::semantic(sc2); |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
2773 sc2->pop(); |
| 159 | 2774 } |
| 2775 | |
| 2776 // We're going to need ModuleInfo even if the unit tests are not | |
| 2777 // compiled in, because other modules may import this module and refer | |
| 2778 // to this ModuleInfo. | |
| 2779 Module *m = getModule(); | |
| 2780 if (!m) | |
| 2781 m = sc->module; | |
| 2782 if (m) | |
| 2783 m->needmoduleinfo = 1; | |
| 2784 } | |
| 2785 | |
| 2786 AggregateDeclaration *UnitTestDeclaration::isThis() | |
| 2787 { | |
| 2788 return NULL; | |
| 2789 } | |
| 2790 | |
| 2791 int UnitTestDeclaration::isVirtual() | |
| 2792 { | |
| 2793 return FALSE; | |
| 2794 } | |
| 2795 | |
| 2796 int UnitTestDeclaration::addPreInvariant() | |
| 2797 { | |
| 2798 return FALSE; | |
| 2799 } | |
| 2800 | |
| 2801 int UnitTestDeclaration::addPostInvariant() | |
| 2802 { | |
| 2803 return FALSE; | |
| 2804 } | |
| 2805 | |
| 2806 void UnitTestDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2807 { | |
| 2808 if (hgs->hdrgen) | |
| 2809 return; | |
| 2810 buf->writestring("unittest"); | |
| 2811 bodyToCBuffer(buf, hgs); | |
| 2812 } | |
| 2813 | |
| 2814 /********************************* NewDeclaration ****************************/ | |
| 2815 | |
| 2816 NewDeclaration::NewDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs) | |
| 2817 : FuncDeclaration(loc, endloc, Id::classNew, STCstatic, NULL) | |
| 2818 { | |
| 2819 this->arguments = arguments; | |
| 2820 this->varargs = varargs; | |
| 2821 } | |
| 2822 | |
| 2823 Dsymbol *NewDeclaration::syntaxCopy(Dsymbol *s) | |
| 2824 { | |
| 2825 NewDeclaration *f; | |
| 2826 | |
| 2827 f = new NewDeclaration(loc, endloc, NULL, varargs); | |
| 2828 | |
| 2829 FuncDeclaration::syntaxCopy(f); | |
| 2830 | |
| 2831 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2832 | |
| 2833 return f; | |
| 2834 } | |
| 2835 | |
| 2836 | |
| 2837 void NewDeclaration::semantic(Scope *sc) | |
| 2838 { | |
| 2839 ClassDeclaration *cd; | |
| 2840 Type *tret; | |
| 2841 | |
| 2842 //printf("NewDeclaration::semantic()\n"); | |
| 2843 | |
| 2844 parent = sc->parent; | |
| 2845 Dsymbol *parent = toParent(); | |
| 2846 cd = parent->isClassDeclaration(); | |
| 2847 if (!cd && !parent->isStructDeclaration()) | |
| 2848 { | |
| 2849 error("new allocators only are for class or struct definitions"); | |
| 2850 } | |
| 2851 tret = Type::tvoid->pointerTo(); | |
| 2852 type = new TypeFunction(arguments, tret, varargs, LINKd); | |
| 2853 | |
| 2854 type = type->semantic(loc, sc); | |
| 2855 assert(type->ty == Tfunction); | |
| 2856 | |
| 2857 // Check that there is at least one argument of type uint | |
| 2858 TypeFunction *tf = (TypeFunction *)type; | |
| 2859 if (Argument::dim(tf->parameters) < 1) | |
| 2860 { | |
|
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
|
2861 error("at least one argument of type size_t expected"); |
| 159 | 2862 } |
| 2863 else | |
| 2864 { | |
| 2865 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
|
2866 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
|
2867 error("first argument must be type size_t, not %s", a->type->toChars()); |
| 159 | 2868 } |
| 2869 | |
| 2870 FuncDeclaration::semantic(sc); | |
| 2871 } | |
| 2872 | |
| 336 | 2873 const char *NewDeclaration::kind() |
| 159 | 2874 { |
| 2875 return "allocator"; | |
| 2876 } | |
| 2877 | |
| 2878 int NewDeclaration::isVirtual() | |
| 2879 { | |
| 2880 return FALSE; | |
| 2881 } | |
| 2882 | |
| 2883 int NewDeclaration::addPreInvariant() | |
| 2884 { | |
| 2885 return FALSE; | |
| 2886 } | |
| 2887 | |
| 2888 int NewDeclaration::addPostInvariant() | |
| 2889 { | |
| 2890 return FALSE; | |
| 2891 } | |
| 2892 | |
| 2893 void NewDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2894 { | |
| 2895 buf->writestring("new"); | |
| 2896 Argument::argsToCBuffer(buf, hgs, arguments, varargs); | |
| 2897 bodyToCBuffer(buf, hgs); | |
| 2898 } | |
| 2899 | |
| 2900 | |
| 2901 /********************************* DeleteDeclaration ****************************/ | |
| 2902 | |
| 2903 DeleteDeclaration::DeleteDeclaration(Loc loc, Loc endloc, Arguments *arguments) | |
| 2904 : FuncDeclaration(loc, endloc, Id::classDelete, STCstatic, NULL) | |
| 2905 { | |
| 2906 this->arguments = arguments; | |
| 2907 } | |
| 2908 | |
| 2909 Dsymbol *DeleteDeclaration::syntaxCopy(Dsymbol *s) | |
| 2910 { | |
| 2911 DeleteDeclaration *f; | |
| 2912 | |
| 2913 f = new DeleteDeclaration(loc, endloc, NULL); | |
| 2914 | |
| 2915 FuncDeclaration::syntaxCopy(f); | |
| 2916 | |
| 2917 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2918 | |
| 2919 return f; | |
| 2920 } | |
| 2921 | |
| 2922 | |
| 2923 void DeleteDeclaration::semantic(Scope *sc) | |
| 2924 { | |
| 2925 ClassDeclaration *cd; | |
| 2926 | |
| 2927 //printf("DeleteDeclaration::semantic()\n"); | |
| 2928 | |
| 2929 parent = sc->parent; | |
| 2930 Dsymbol *parent = toParent(); | |
| 2931 cd = parent->isClassDeclaration(); | |
| 2932 if (!cd && !parent->isStructDeclaration()) | |
| 2933 { | |
| 2934 error("new allocators only are for class or struct definitions"); | |
| 2935 } | |
| 2936 type = new TypeFunction(arguments, Type::tvoid, 0, LINKd); | |
| 2937 | |
| 2938 type = type->semantic(loc, sc); | |
| 2939 assert(type->ty == Tfunction); | |
| 2940 | |
| 2941 // Check that there is only one argument of type void* | |
| 2942 TypeFunction *tf = (TypeFunction *)type; | |
| 2943 if (Argument::dim(tf->parameters) != 1) | |
| 2944 { | |
| 2945 error("one argument of type void* expected"); | |
| 2946 } | |
| 2947 else | |
| 2948 { | |
| 2949 Argument *a = Argument::getNth(tf->parameters, 0); | |
| 2950 if (!a->type->equals(Type::tvoid->pointerTo())) | |
| 2951 error("one argument of type void* expected, not %s", a->type->toChars()); | |
| 2952 } | |
| 2953 | |
| 2954 FuncDeclaration::semantic(sc); | |
| 2955 } | |
| 2956 | |
| 336 | 2957 const char *DeleteDeclaration::kind() |
| 159 | 2958 { |
| 2959 return "deallocator"; | |
| 2960 } | |
| 2961 | |
| 2962 int DeleteDeclaration::isDelete() | |
| 2963 { | |
| 2964 return TRUE; | |
| 2965 } | |
| 2966 | |
| 2967 int DeleteDeclaration::isVirtual() | |
| 2968 { | |
| 2969 return FALSE; | |
| 2970 } | |
| 2971 | |
| 2972 int DeleteDeclaration::addPreInvariant() | |
| 2973 { | |
| 2974 return FALSE; | |
| 2975 } | |
| 2976 | |
| 2977 int DeleteDeclaration::addPostInvariant() | |
| 2978 { | |
| 2979 return FALSE; | |
| 2980 } | |
| 2981 | |
| 2982 void DeleteDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2983 { | |
| 2984 buf->writestring("delete"); | |
| 2985 Argument::argsToCBuffer(buf, hgs, arguments, 0); | |
| 2986 bodyToCBuffer(buf, hgs); | |
| 2987 } | |
| 2988 | |
| 2989 | |
| 2990 | |
| 2991 |