Mercurial > projects > ldc
annotate dmd/func.c @ 1256:6af2359b433a
Change needed for mingw
| author | Kelly Wilson <wilsonk cpsc.ucalgary.ca> |
|---|---|
| date | Wed, 22 Apr 2009 14:40:56 -0600 |
| parents | 79758fd2f48a |
| children | 680b4df0ea36 |
| rev | line source |
|---|---|
| 159 | 1 |
| 2 // Compiler implementation of the D programming language | |
| 3 // Copyright (c) 1999-2008 by Digital Mars | |
| 4 // All Rights Reserved | |
| 5 // written by Walter Bright | |
| 6 // http://www.digitalmars.com | |
| 7 // License for redistribution is by either the Artistic License | |
| 8 // in artistic.txt, or the GNU General Public License in gnu.txt. | |
| 9 // See the included readme.txt for details. | |
| 10 | |
| 11 #include <stdio.h> | |
| 12 #include <assert.h> | |
| 13 | |
| 14 #include "mars.h" | |
| 15 #include "init.h" | |
| 16 #include "declaration.h" | |
| 17 #include "attrib.h" | |
| 18 #include "expression.h" | |
| 19 #include "scope.h" | |
| 20 #include "mtype.h" | |
| 21 #include "aggregate.h" | |
| 22 #include "identifier.h" | |
| 23 #include "id.h" | |
| 24 #include "module.h" | |
| 25 #include "statement.h" | |
| 26 #include "template.h" | |
| 27 #include "hdrgen.h" | |
| 28 | |
| 29 #ifdef IN_GCC | |
| 30 #include "d-dmd-gcc.h" | |
| 31 #endif | |
| 32 | |
| 33 /********************************* FuncDeclaration ****************************/ | |
| 34 | |
| 35 FuncDeclaration::FuncDeclaration(Loc loc, Loc endloc, Identifier *id, enum STC storage_class, Type *type) | |
| 36 : Declaration(id) | |
| 37 { | |
| 38 //printf("FuncDeclaration(id = '%s', type = %p)\n", id->toChars(), type); | |
| 39 this->storage_class = storage_class; | |
| 40 this->type = type; | |
| 41 this->loc = loc; | |
| 42 this->endloc = endloc; | |
| 43 fthrows = NULL; | |
| 44 frequire = NULL; | |
| 45 outId = NULL; | |
| 46 vresult = NULL; | |
| 47 returnLabel = NULL; | |
| 48 fensure = NULL; | |
| 49 fbody = NULL; | |
| 50 localsymtab = NULL; | |
| 51 vthis = NULL; | |
| 52 v_arguments = NULL; | |
| 53 #if IN_GCC | |
| 54 v_argptr = NULL; | |
| 55 #endif | |
| 56 parameters = NULL; | |
| 57 labtab = NULL; | |
| 58 overnext = NULL; | |
| 59 vtblIndex = -1; | |
| 60 hasReturnExp = 0; | |
| 61 naked = 0; | |
| 62 inlineStatus = ILSuninitialized; | |
| 63 inlineNest = 0; | |
| 64 inlineAsm = 0; | |
| 65 cantInterpret = 0; | |
| 66 semanticRun = 0; | |
| 67 nestedFrameRef = 0; | |
| 68 fes = NULL; | |
| 69 introducing = 0; | |
| 70 tintro = NULL; | |
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71 /* The type given for "infer the return type" is a TypeFunction with |
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72 * NULL for the return type. |
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73 */ |
| 159 | 74 inferRetType = (type && type->nextOf() == NULL); |
| 75 scope = NULL; | |
| 76 hasReturnExp = 0; | |
| 77 nrvo_can = 1; | |
| 78 nrvo_var = NULL; | |
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79 #if IN_DMD |
| 159 | 80 shidden = NULL; |
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81 #endif |
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82 |
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83 #if IN_LLVM |
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84 // LDC |
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85 isArrayOp = false; |
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86 allowInlining = false; |
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87 |
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88 // function types in ldc don't merge if the context parameter differs |
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89 // so we actually don't care about the function declaration, but only |
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90 // what kind of context parameter it has. |
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91 // however, this constructor is usually called from the parser, which |
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92 // unfortunately doesn't provide the information needed to get to the |
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93 // aggregate type. So we have to stick with the FuncDeclaration and |
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94 // just be sure we don't actually rely on the symbol it points to, |
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95 // but rather just the type of its context parameter. |
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96 // this means some function might have a function type pointing to |
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97 // another function declaration |
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98 |
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99 if (type) |
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100 { |
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101 assert(type->ty == Tfunction && "invalid function type"); |
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102 TypeFunction* tf = (TypeFunction*)type; |
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103 if (tf->funcdecl == NULL) |
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104 tf->funcdecl = this; |
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105 } |
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106 #endif |
| 159 | 107 } |
| 108 | |
| 109 Dsymbol *FuncDeclaration::syntaxCopy(Dsymbol *s) | |
| 110 { | |
| 111 FuncDeclaration *f; | |
| 112 | |
| 113 //printf("FuncDeclaration::syntaxCopy('%s')\n", toChars()); | |
| 114 if (s) | |
| 115 f = (FuncDeclaration *)s; | |
| 116 else | |
| 117 f = new FuncDeclaration(loc, endloc, ident, (enum STC) storage_class, type->syntaxCopy()); | |
| 118 f->outId = outId; | |
| 119 f->frequire = frequire ? frequire->syntaxCopy() : NULL; | |
| 120 f->fensure = fensure ? fensure->syntaxCopy() : NULL; | |
| 121 f->fbody = fbody ? fbody->syntaxCopy() : NULL; | |
| 122 assert(!fthrows); // deprecated | |
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123 |
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124 // LDC |
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125 f->intrinsicName = intrinsicName; |
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126 |
| 159 | 127 return f; |
| 128 } | |
| 129 | |
| 130 | |
| 131 // Do the semantic analysis on the external interface to the function. | |
| 132 | |
| 133 void FuncDeclaration::semantic(Scope *sc) | |
| 134 { TypeFunction *f; | |
| 135 StructDeclaration *sd; | |
| 136 ClassDeclaration *cd; | |
| 137 InterfaceDeclaration *id; | |
| 336 | 138 Dsymbol *pd; |
| 159 | 139 |
| 140 #if 0 | |
| 141 printf("FuncDeclaration::semantic(sc = %p, this = %p, '%s', linkage = %d)\n", sc, this, toPrettyChars(), sc->linkage); | |
| 142 if (isFuncLiteralDeclaration()) | |
| 143 printf("\tFuncLiteralDeclaration()\n"); | |
| 144 printf("sc->parent = %s\n", sc->parent->toChars()); | |
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145 printf("type: %p, %s\n", type, type->toChars()); |
| 159 | 146 #endif |
| 147 | |
| 148 if (type->nextOf()) | |
| 149 type = type->semantic(loc, sc); | |
| 150 //type->print(); | |
| 151 if (type->ty != Tfunction) | |
| 152 { | |
| 153 error("%s must be a function", toChars()); | |
| 154 return; | |
| 155 } | |
| 156 f = (TypeFunction *)(type); | |
| 157 size_t nparams = Argument::dim(f->parameters); | |
| 158 | |
| 159 linkage = sc->linkage; | |
| 160 // if (!parent) | |
| 161 { | |
| 162 //parent = sc->scopesym; | |
| 163 parent = sc->parent; | |
| 164 } | |
| 165 protection = sc->protection; | |
| 166 storage_class |= sc->stc; | |
| 167 //printf("function storage_class = x%x\n", storage_class); | |
| 168 Dsymbol *parent = toParent(); | |
| 169 | |
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170 if (ident == Id::ctor && !isCtorDeclaration()) |
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171 error("_ctor is reserved for constructors"); |
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172 |
| 159 | 173 if (isConst() || isAuto() || isScope()) |
| 174 error("functions cannot be const or auto"); | |
| 175 | |
| 176 if (isAbstract() && !isVirtual()) | |
| 177 error("non-virtual functions cannot be abstract"); | |
| 178 | |
| 179 if (isAbstract() && isFinal()) | |
| 180 error("cannot be both final and abstract"); | |
| 181 #if 0 | |
| 182 if (isAbstract() && fbody) | |
| 183 error("abstract functions cannot have bodies"); | |
| 184 #endif | |
| 185 | |
| 186 #if 0 | |
| 187 if (isStaticConstructor() || isStaticDestructor()) | |
| 188 { | |
| 189 if (!isStatic() || type->nextOf()->ty != Tvoid) | |
| 190 error("static constructors / destructors must be static void"); | |
| 191 if (f->arguments && f->arguments->dim) | |
| 192 error("static constructors / destructors must have empty parameter list"); | |
| 193 // BUG: check for invalid storage classes | |
| 194 } | |
| 195 #endif | |
| 196 | |
| 197 #ifdef IN_GCC | |
| 198 AggregateDeclaration *ad; | |
| 199 | |
| 200 ad = parent->isAggregateDeclaration(); | |
| 201 if (ad) | |
| 202 ad->methods.push(this); | |
| 203 #endif | |
| 204 sd = parent->isStructDeclaration(); | |
| 205 if (sd) | |
| 206 { | |
| 207 // Verify no constructors, destructors, etc. | |
| 208 if (isCtorDeclaration() || | |
| 209 isDtorDeclaration() | |
| 210 //|| isInvariantDeclaration() | |
| 211 //|| isUnitTestDeclaration() | |
| 212 ) | |
| 213 { | |
| 214 error("special member functions not allowed for %ss", sd->kind()); | |
| 215 } | |
| 216 | |
| 217 #if 0 | |
| 218 if (!sd->inv) | |
| 219 sd->inv = isInvariantDeclaration(); | |
| 220 | |
| 221 if (!sd->aggNew) | |
| 222 sd->aggNew = isNewDeclaration(); | |
| 223 | |
| 224 if (isDelete()) | |
| 225 { | |
| 226 if (sd->aggDelete) | |
| 227 error("multiple delete's for struct %s", sd->toChars()); | |
| 228 sd->aggDelete = (DeleteDeclaration *)(this); | |
| 229 } | |
| 230 #endif | |
| 231 } | |
| 232 | |
| 233 id = parent->isInterfaceDeclaration(); | |
| 234 if (id) | |
| 235 { | |
| 236 storage_class |= STCabstract; | |
| 237 | |
| 238 if (isCtorDeclaration() || | |
| 239 isDtorDeclaration() || | |
| 240 isInvariantDeclaration() || | |
| 241 isUnitTestDeclaration() || isNewDeclaration() || isDelete()) | |
| 242 error("special function not allowed in interface %s", id->toChars()); | |
| 243 if (fbody) | |
| 244 error("function body is not abstract in interface %s", id->toChars()); | |
| 245 } | |
| 246 | |
| 336 | 247 /* Template member functions aren't virtual: |
| 248 * interface TestInterface { void tpl(T)(); } | |
| 249 * and so won't work in interfaces | |
| 250 */ | |
| 251 if ((pd = toParent()) != NULL && | |
| 252 pd->isTemplateInstance() && | |
| 253 (pd = toParent2()) != NULL && | |
| 254 (id = pd->isInterfaceDeclaration()) != NULL) | |
| 255 { | |
| 256 error("template member function not allowed in interface %s", id->toChars()); | |
| 257 } | |
| 258 | |
| 159 | 259 cd = parent->isClassDeclaration(); |
| 260 if (cd) | |
| 261 { int vi; | |
| 262 CtorDeclaration *ctor; | |
| 263 DtorDeclaration *dtor; | |
| 264 InvariantDeclaration *inv; | |
| 265 | |
| 266 if (isCtorDeclaration()) | |
| 267 { | |
| 268 // ctor = (CtorDeclaration *)this; | |
| 269 // if (!cd->ctor) | |
| 270 // cd->ctor = ctor; | |
| 271 return; | |
| 272 } | |
| 273 | |
| 274 #if 0 | |
| 275 dtor = isDtorDeclaration(); | |
| 276 if (dtor) | |
| 277 { | |
| 278 if (cd->dtor) | |
| 279 error("multiple destructors for class %s", cd->toChars()); | |
| 280 cd->dtor = dtor; | |
| 281 } | |
| 282 | |
| 283 inv = isInvariantDeclaration(); | |
| 284 if (inv) | |
| 285 { | |
| 286 cd->inv = inv; | |
| 287 } | |
| 288 | |
| 289 if (isNewDeclaration()) | |
| 290 { | |
| 291 if (!cd->aggNew) | |
| 292 cd->aggNew = (NewDeclaration *)(this); | |
| 293 } | |
| 294 | |
| 295 if (isDelete()) | |
| 296 { | |
| 297 if (cd->aggDelete) | |
| 298 error("multiple delete's for class %s", cd->toChars()); | |
| 299 cd->aggDelete = (DeleteDeclaration *)(this); | |
| 300 } | |
| 301 #endif | |
| 302 | |
| 303 if (storage_class & STCabstract) | |
| 304 cd->isabstract = 1; | |
| 305 | |
| 306 // if static function, do not put in vtbl[] | |
| 307 if (!isVirtual()) | |
| 308 { | |
| 309 //printf("\tnot virtual\n"); | |
| 310 goto Ldone; | |
| 311 } | |
| 312 | |
| 313 // Find index of existing function in vtbl[] to override | |
| 314 vi = findVtblIndex(&cd->vtbl, cd->baseClass ? cd->baseClass->vtbl.dim : 0); | |
| 315 switch (vi) | |
| 316 { | |
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317 case -1: |
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318 /* Didn't find one, so |
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319 * This is an 'introducing' function which gets a new |
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320 * slot in the vtbl[]. |
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321 */ |
| 159 | 322 |
| 323 // Verify this doesn't override previous final function | |
| 324 if (cd->baseClass) | |
| 325 { Dsymbol *s = cd->baseClass->search(loc, ident, 0); | |
| 326 if (s) | |
| 327 { | |
| 328 FuncDeclaration *f = s->isFuncDeclaration(); | |
| 329 f = f->overloadExactMatch(type); | |
| 330 if (f && f->isFinal() && f->prot() != PROTprivate) | |
| 331 error("cannot override final function %s", f->toPrettyChars()); | |
| 332 } | |
| 333 } | |
| 334 | |
| 335 if (isFinal()) | |
| 336 { | |
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337 if (isOverride()) |
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338 error("does not override any function"); |
| 159 | 339 cd->vtblFinal.push(this); |
| 340 } | |
| 341 else | |
| 342 { | |
| 343 // Append to end of vtbl[] | |
| 344 //printf("\tintroducing function\n"); | |
| 345 introducing = 1; | |
| 346 vi = cd->vtbl.dim; | |
| 347 cd->vtbl.push(this); | |
| 348 vtblIndex = vi; | |
| 349 } | |
| 350 break; | |
| 351 | |
| 352 case -2: // can't determine because of fwd refs | |
| 353 cd->sizeok = 2; // can't finish due to forward reference | |
| 354 return; | |
| 355 | |
| 356 default: | |
| 357 { FuncDeclaration *fdv = (FuncDeclaration *)cd->vtbl.data[vi]; | |
| 358 // This function is covariant with fdv | |
| 359 if (fdv->isFinal()) | |
| 360 error("cannot override final function %s", fdv->toPrettyChars()); | |
| 361 | |
| 336 | 362 #if DMDV2 |
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363 if (!isOverride()) |
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364 warning(loc, "overrides base class function %s, but is not marked with 'override'", fdv->toPrettyChars()); |
| 159 | 365 #endif |
| 366 | |
| 367 if (fdv->toParent() == parent) | |
| 368 { | |
| 369 // If both are mixins, then error. | |
| 370 // If either is not, the one that is not overrides | |
| 371 // the other. | |
| 372 if (fdv->parent->isClassDeclaration()) | |
| 373 break; | |
| 374 if (!this->parent->isClassDeclaration() | |
| 375 #if !BREAKABI | |
| 376 && !isDtorDeclaration() | |
| 377 #endif | |
| 336 | 378 #if DMDV2 |
| 159 | 379 && !isPostBlitDeclaration() |
| 380 #endif | |
| 381 ) | |
| 382 error("multiple overrides of same function"); | |
| 383 } | |
| 384 cd->vtbl.data[vi] = (void *)this; | |
| 385 vtblIndex = vi; | |
| 386 | |
| 387 /* This works by whenever this function is called, | |
| 388 * it actually returns tintro, which gets dynamically | |
| 389 * cast to type. But we know that tintro is a base | |
| 390 * of type, so we could optimize it by not doing a | |
| 391 * dynamic cast, but just subtracting the isBaseOf() | |
| 392 * offset if the value is != null. | |
| 393 */ | |
| 394 | |
| 395 if (fdv->tintro) | |
| 396 tintro = fdv->tintro; | |
| 397 else if (!type->equals(fdv->type)) | |
| 398 { | |
| 399 /* Only need to have a tintro if the vptr | |
| 400 * offsets differ | |
| 401 */ | |
| 402 int offset; | |
| 403 if (fdv->type->nextOf()->isBaseOf(type->nextOf(), &offset)) | |
| 404 { | |
| 405 tintro = fdv->type; | |
| 406 } | |
| 407 } | |
| 408 break; | |
| 409 } | |
| 410 } | |
| 411 | |
| 412 /* Go through all the interface bases. | |
| 413 * If this function is covariant with any members of those interface | |
| 414 * functions, set the tintro. | |
| 415 */ | |
| 416 for (int i = 0; i < cd->interfaces_dim; i++) | |
| 417 { | |
| 418 #if 1 | |
| 419 BaseClass *b = cd->interfaces[i]; | |
| 420 vi = findVtblIndex(&b->base->vtbl, b->base->vtbl.dim); | |
| 421 switch (vi) | |
| 422 { | |
| 423 case -1: | |
| 424 break; | |
| 425 | |
| 426 case -2: | |
| 427 cd->sizeok = 2; // can't finish due to forward reference | |
| 428 return; | |
| 429 | |
| 430 default: | |
| 431 { FuncDeclaration *fdv = (FuncDeclaration *)b->base->vtbl.data[vi]; | |
| 432 Type *ti = NULL; | |
| 433 | |
| 434 if (fdv->tintro) | |
| 435 ti = fdv->tintro; | |
| 436 else if (!type->equals(fdv->type)) | |
| 437 { | |
| 438 /* Only need to have a tintro if the vptr | |
| 439 * offsets differ | |
| 440 */ | |
| 441 int offset; | |
| 442 if (fdv->type->nextOf()->isBaseOf(type->nextOf(), &offset)) | |
| 443 { | |
| 444 ti = fdv->type; | |
| 445 #if 0 | |
| 446 if (offset) | |
| 447 ti = fdv->type; | |
| 448 else if (type->nextOf()->ty == Tclass) | |
| 449 { ClassDeclaration *cdn = ((TypeClass *)type->nextOf())->sym; | |
| 450 if (cdn && cdn->sizeok != 1) | |
| 451 ti = fdv->type; | |
| 452 } | |
| 453 #endif | |
| 454 } | |
| 455 } | |
| 456 if (ti) | |
| 457 { | |
| 458 if (tintro && !tintro->equals(ti)) | |
| 459 { | |
| 460 error("incompatible covariant types %s and %s", tintro->toChars(), ti->toChars()); | |
| 461 } | |
| 462 tintro = ti; | |
| 463 } | |
| 464 goto L2; | |
| 465 } | |
| 466 } | |
| 467 #else | |
| 468 BaseClass *b = cd->interfaces[i]; | |
| 469 for (vi = 0; vi < b->base->vtbl.dim; vi++) | |
| 470 { | |
| 471 Dsymbol *s = (Dsymbol *)b->base->vtbl.data[vi]; | |
| 472 //printf("interface %d vtbl[%d] %p %s\n", i, vi, s, s->toChars()); | |
| 473 FuncDeclaration *fdv = s->isFuncDeclaration(); | |
| 474 if (fdv && fdv->ident == ident) | |
| 475 { | |
| 476 int cov = type->covariant(fdv->type); | |
| 477 //printf("\tcov = %d\n", cov); | |
| 478 if (cov == 2) | |
| 479 { | |
| 480 //type->print(); | |
| 481 //fdv->type->print(); | |
| 482 //printf("%s %s\n", type->deco, fdv->type->deco); | |
| 483 error("of type %s overrides but is not covariant with %s of type %s", | |
| 484 type->toChars(), fdv->toPrettyChars(), fdv->type->toChars()); | |
| 485 } | |
| 486 if (cov == 1) | |
| 487 { Type *ti = NULL; | |
| 488 | |
| 489 if (fdv->tintro) | |
| 490 ti = fdv->tintro; | |
| 491 else if (!type->equals(fdv->type)) | |
| 492 { | |
| 493 /* Only need to have a tintro if the vptr | |
| 494 * offsets differ | |
| 495 */ | |
| 496 int offset; | |
| 497 if (fdv->type->nextOf()->isBaseOf(type->nextOf(), &offset)) | |
| 498 { | |
| 499 ti = fdv->type; | |
| 500 #if 0 | |
| 501 if (offset) | |
| 502 ti = fdv->type; | |
| 503 else if (type->nextOf()->ty == Tclass) | |
| 504 { ClassDeclaration *cdn = ((TypeClass *)type->nextOf())->sym; | |
| 505 if (cdn && cdn->sizeok != 1) | |
| 506 ti = fdv->type; | |
| 507 } | |
| 508 #endif | |
| 509 } | |
| 510 } | |
| 511 if (ti) | |
| 512 { | |
| 513 if (tintro && !tintro->equals(ti)) | |
| 514 { | |
| 515 error("incompatible covariant types %s and %s", tintro->toChars(), ti->toChars()); | |
| 516 } | |
| 517 tintro = ti; | |
| 518 } | |
| 519 goto L2; | |
| 520 } | |
| 521 if (cov == 3) | |
| 522 { | |
| 523 cd->sizeok = 2; // can't finish due to forward reference | |
| 524 return; | |
| 525 } | |
| 526 } | |
| 527 } | |
| 528 #endif | |
| 529 } | |
| 530 | |
| 531 if (introducing && isOverride()) | |
| 532 { | |
| 533 error("does not override any function"); | |
| 534 } | |
| 535 | |
| 536 L2: ; | |
| 537 } | |
| 538 else if (isOverride() && !parent->isTemplateInstance()) | |
| 539 error("override only applies to class member functions"); | |
| 540 | |
| 541 /* Do not allow template instances to add virtual functions | |
| 542 * to a class. | |
| 543 */ | |
| 544 if (isVirtual()) | |
| 545 { | |
| 546 TemplateInstance *ti = parent->isTemplateInstance(); | |
| 547 if (ti) | |
| 548 { | |
| 549 // Take care of nested templates | |
| 550 while (1) | |
| 551 { | |
| 552 TemplateInstance *ti2 = ti->tempdecl->parent->isTemplateInstance(); | |
| 553 if (!ti2) | |
| 554 break; | |
| 555 ti = ti2; | |
| 556 } | |
| 557 | |
| 558 // If it's a member template | |
| 559 ClassDeclaration *cd = ti->tempdecl->isClassMember(); | |
| 560 if (cd) | |
| 561 { | |
| 562 error("cannot use template to add virtual function to class '%s'", cd->toChars()); | |
| 563 } | |
| 564 } | |
| 565 } | |
| 566 | |
| 567 if (isMain()) | |
| 568 { | |
| 569 // Check parameters to see if they are either () or (char[][] args) | |
| 570 switch (nparams) | |
| 571 { | |
| 572 case 0: | |
| 573 break; | |
| 574 | |
| 575 case 1: | |
| 576 { | |
| 577 Argument *arg0 = Argument::getNth(f->parameters, 0); | |
| 578 if (arg0->type->ty != Tarray || | |
| 579 arg0->type->nextOf()->ty != Tarray || | |
| 580 arg0->type->nextOf()->nextOf()->ty != Tchar || | |
| 581 arg0->storageClass & (STCout | STCref | STClazy)) | |
| 582 goto Lmainerr; | |
| 583 break; | |
| 584 } | |
| 585 | |
| 586 default: | |
| 587 goto Lmainerr; | |
| 588 } | |
| 589 | |
| 590 if (f->nextOf()->ty != Tint32 && f->nextOf()->ty != Tvoid) | |
| 591 error("must return int or void, not %s", f->nextOf()->toChars()); | |
| 592 if (f->varargs) | |
| 593 { | |
| 594 Lmainerr: | |
| 595 error("parameters must be main() or main(char[][] args)"); | |
| 596 } | |
| 597 } | |
| 598 | |
| 599 if (ident == Id::assign && (sd || cd)) | |
| 600 { // Disallow identity assignment operator. | |
| 601 | |
| 602 // opAssign(...) | |
| 603 if (nparams == 0) | |
| 604 { if (f->varargs == 1) | |
| 605 goto Lassignerr; | |
| 606 } | |
| 607 else | |
| 608 { | |
| 609 Argument *arg0 = Argument::getNth(f->parameters, 0); | |
| 610 Type *t0 = arg0->type->toBasetype(); | |
| 611 Type *tb = sd ? sd->type : cd->type; | |
| 612 if (arg0->type->implicitConvTo(tb) || | |
| 613 (sd && t0->ty == Tpointer && t0->nextOf()->implicitConvTo(tb)) | |
| 614 ) | |
| 615 { | |
| 616 if (nparams == 1) | |
| 617 goto Lassignerr; | |
| 618 Argument *arg1 = Argument::getNth(f->parameters, 1); | |
| 619 if (arg1->defaultArg) | |
| 620 goto Lassignerr; | |
| 621 } | |
| 622 } | |
| 623 } | |
| 624 | |
| 625 Ldone: | |
| 626 /* Save scope for possible later use (if we need the | |
| 627 * function internals) | |
| 628 */ | |
| 629 scope = new Scope(*sc); | |
| 630 scope->setNoFree(); | |
| 631 return; | |
| 632 | |
| 633 Lassignerr: | |
| 634 error("identity assignment operator overload is illegal"); | |
| 635 } | |
| 636 | |
| 637 void FuncDeclaration::semantic2(Scope *sc) | |
| 638 { | |
| 639 } | |
| 640 | |
| 641 // Do the semantic analysis on the internals of the function. | |
| 642 | |
| 643 void FuncDeclaration::semantic3(Scope *sc) | |
| 644 { TypeFunction *f; | |
| 645 AggregateDeclaration *ad; | |
| 646 VarDeclaration *argptr = NULL; | |
| 647 VarDeclaration *_arguments = NULL; | |
| 648 | |
| 649 if (!parent) | |
| 650 { | |
| 651 if (global.errors) | |
| 652 return; | |
| 653 //printf("FuncDeclaration::semantic3(%s '%s', sc = %p)\n", kind(), toChars(), sc); | |
| 654 assert(0); | |
| 655 } | |
| 656 //printf("FuncDeclaration::semantic3('%s.%s', sc = %p, loc = %s)\n", parent->toChars(), toChars(), sc, loc.toChars()); | |
| 657 //fflush(stdout); | |
| 658 //{ static int x; if (++x == 2) *(char*)0=0; } | |
| 659 //printf("\tlinkage = %d\n", sc->linkage); | |
| 660 | |
| 661 //printf(" sc->incontract = %d\n", sc->incontract); | |
| 662 if (semanticRun) | |
| 663 return; | |
| 664 semanticRun = 1; | |
| 665 | |
| 666 if (!type || type->ty != Tfunction) | |
| 667 return; | |
| 668 f = (TypeFunction *)(type); | |
| 669 size_t nparams = Argument::dim(f->parameters); | |
| 670 | |
| 671 // Check the 'throws' clause | |
| 672 if (fthrows) | |
|
510
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673 { |
|
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|
674 for (int i = 0; i < fthrows->dim; i++) |
| 159 | 675 { |
| 676 Type *t = (Type *)fthrows->data[i]; | |
| 677 | |
| 678 t = t->semantic(loc, sc); | |
| 679 if (!t->isClassHandle()) | |
| 680 error("can only throw classes, not %s", t->toChars()); | |
| 681 } | |
| 682 } | |
| 683 | |
| 684 if (fbody || frequire) | |
| 685 { | |
| 686 /* Symbol table into which we place parameters and nested functions, | |
| 687 * solely to diagnose name collisions. | |
| 688 */ | |
| 689 localsymtab = new DsymbolTable(); | |
| 690 | |
| 691 // Establish function scope | |
| 692 ScopeDsymbol *ss = new ScopeDsymbol(); | |
| 693 ss->parent = sc->scopesym; | |
| 694 Scope *sc2 = sc->push(ss); | |
| 695 sc2->func = this; | |
| 696 sc2->parent = this; | |
| 697 sc2->callSuper = 0; | |
| 698 sc2->sbreak = NULL; | |
| 699 sc2->scontinue = NULL; | |
| 700 sc2->sw = NULL; | |
| 701 sc2->fes = fes; | |
| 702 sc2->linkage = LINKd; | |
| 703 sc2->stc &= ~(STCauto | STCscope | STCstatic | STCabstract | STCdeprecated | STCfinal); | |
| 704 sc2->protection = PROTpublic; | |
| 705 sc2->explicitProtection = 0; | |
| 706 sc2->structalign = 8; | |
| 707 sc2->incontract = 0; | |
|
1141
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708 sc2->enclosingFinally = NULL; |
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709 sc2->enclosingScopeExit = NULL; |
| 159 | 710 sc2->noctor = 0; |
| 711 | |
| 712 // Declare 'this' | |
| 713 ad = isThis(); | |
| 714 if (ad) | |
| 715 { VarDeclaration *v; | |
| 716 | |
| 717 if (isFuncLiteralDeclaration() && isNested()) | |
| 718 { | |
| 719 error("literals cannot be class members"); | |
| 720 return; | |
| 721 } | |
| 722 else | |
| 723 { | |
| 724 assert(!isNested()); // can't be both member and nested | |
| 725 assert(ad->handle); | |
| 726 v = new ThisDeclaration(ad->handle); | |
| 727 v->storage_class |= STCparameter | STCin; | |
| 728 v->semantic(sc2); | |
| 729 if (!sc2->insert(v)) | |
| 730 assert(0); | |
| 731 v->parent = this; | |
| 732 vthis = v; | |
| 733 } | |
| 734 } | |
| 735 else if (isNested()) | |
| 736 { | |
|
510
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737 /* The 'this' for a nested function is the link to the |
|
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diff
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|
738 * enclosing function's stack frame. |
|
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parents:
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diff
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|
739 * Note that nested functions and member functions are disjoint. |
|
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diff
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|
740 */ |
|
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parents:
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diff
changeset
|
741 VarDeclaration *v = new ThisDeclaration(Type::tvoid->pointerTo()); |
| 159 | 742 v->storage_class |= STCparameter | STCin; |
| 743 v->semantic(sc2); | |
| 744 if (!sc2->insert(v)) | |
| 745 assert(0); | |
| 746 v->parent = this; | |
| 747 vthis = v; | |
| 748 } | |
| 749 | |
| 750 // Declare hidden variable _arguments[] and _argptr | |
| 751 if (f->varargs == 1) | |
| 752 { Type *t; | |
| 753 | |
| 754 if (f->linkage == LINKd) | |
| 755 { // Declare _arguments[] | |
| 756 #if BREAKABI | |
| 757 v_arguments = new VarDeclaration(0, Type::typeinfotypelist->type, Id::_arguments_typeinfo, NULL); | |
| 758 v_arguments->storage_class = STCparameter | STCin; | |
| 759 v_arguments->semantic(sc2); | |
| 760 sc2->insert(v_arguments); | |
| 761 v_arguments->parent = this; | |
| 762 | |
| 763 t = Type::typeinfo->type->arrayOf(); | |
| 764 _arguments = new VarDeclaration(0, t, Id::_arguments, NULL); | |
| 765 _arguments->semantic(sc2); | |
| 766 sc2->insert(_arguments); | |
| 767 _arguments->parent = this; | |
| 768 #else | |
| 769 t = Type::typeinfo->type->arrayOf(); | |
| 770 v_arguments = new VarDeclaration(0, t, Id::_arguments, NULL); | |
| 771 v_arguments->storage_class = STCparameter | STCin; | |
| 772 v_arguments->semantic(sc2); | |
| 773 sc2->insert(v_arguments); | |
| 774 v_arguments->parent = this; | |
| 775 #endif | |
| 776 } | |
| 777 if (f->linkage == LINKd || (parameters && parameters->dim)) | |
| 778 { // Declare _argptr | |
| 779 #if IN_GCC | |
| 780 t = d_gcc_builtin_va_list_d_type; | |
| 781 #else | |
| 782 t = Type::tvoid->pointerTo(); | |
| 783 #endif | |
| 784 argptr = new VarDeclaration(0, t, Id::_argptr, NULL); | |
| 785 argptr->semantic(sc2); | |
| 786 sc2->insert(argptr); | |
| 787 argptr->parent = this; | |
| 788 } | |
| 789 } | |
| 790 | |
|
1177
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parents:
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changeset
|
791 #if IN_LLVM |
|
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792 // LDC make sure argument type is semanticed. |
|
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parents:
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793 // Turns TypeTuple!(int, int) into two int parameters, for instance. |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
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parents:
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|
794 if (f->parameters) |
|
a8b9fc41c34b
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parents:
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|
795 { |
|
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Fix #246 by running type->semantic() on parameters so tuples are expanded.
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796 for (size_t i = 0; i < Argument::dim(f->parameters); i++) |
|
a8b9fc41c34b
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797 { Argument *arg = (Argument *)Argument::getNth(f->parameters, i); |
|
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798 Type* nw = arg->type->semantic(0, sc); |
|
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|
799 if (arg->type != nw) { |
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parents:
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|
800 arg->type = nw; |
|
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parents:
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|
801 // Examine this index again. |
|
a8b9fc41c34b
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802 // This is important if it turned into a tuple. |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
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803 // In particular, the empty tuple should be handled or the |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
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parents:
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|
804 // next parameter will be skipped. |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
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parents:
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805 // FIXME: Maybe we only need to do this for tuples, |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
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parents:
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806 // and can add tuple.length after decrement? |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
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807 i--; |
|
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Fix #246 by running type->semantic() on parameters so tuples are expanded.
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parents:
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808 } |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
Frits van Bommel <fvbommel wxs.nl>
parents:
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|
809 } |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
Frits van Bommel <fvbommel wxs.nl>
parents:
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changeset
|
810 // update nparams to include expanded tuples |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
Frits van Bommel <fvbommel wxs.nl>
parents:
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changeset
|
811 nparams = Argument::dim(f->parameters); |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
Frits van Bommel <fvbommel wxs.nl>
parents:
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|
812 } |
|
a8b9fc41c34b
Fix #246 by running type->semantic() on parameters so tuples are expanded.
Frits van Bommel <fvbommel wxs.nl>
parents:
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|
813 #endif |
|
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Fix #246 by running type->semantic() on parameters so tuples are expanded.
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parents:
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changeset
|
814 |
| 159 | 815 // Propagate storage class from tuple parameters to their element-parameters. |
| 816 if (f->parameters) | |
| 817 { | |
| 818 for (size_t i = 0; i < f->parameters->dim; i++) | |
| 819 { Argument *arg = (Argument *)f->parameters->data[i]; | |
| 820 | |
| 821 if (arg->type->ty == Ttuple) | |
| 822 { TypeTuple *t = (TypeTuple *)arg->type; | |
| 823 size_t dim = Argument::dim(t->arguments); | |
| 824 for (size_t j = 0; j < dim; j++) | |
| 825 { Argument *narg = Argument::getNth(t->arguments, j); | |
| 826 narg->storageClass = arg->storageClass; | |
| 827 } | |
| 828 } | |
| 829 } | |
| 830 } | |
| 831 | |
| 832 // Declare all the function parameters as variables | |
| 833 if (nparams) | |
| 834 { /* parameters[] has all the tuples removed, as the back end | |
| 835 * doesn't know about tuples | |
| 836 */ | |
| 837 parameters = new Dsymbols(); | |
| 838 parameters->reserve(nparams); | |
| 839 for (size_t i = 0; i < nparams; i++) | |
| 840 { | |
| 841 Argument *arg = Argument::getNth(f->parameters, i); | |
| 842 Identifier *id = arg->ident; | |
| 843 if (!id) | |
| 844 { | |
| 845 /* Generate identifier for un-named parameter, | |
| 846 * because we need it later on. | |
| 847 */ | |
|
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parents:
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diff
changeset
|
848 arg->ident = id = Identifier::generateId("_param_", i); |
| 159 | 849 } |
| 850 VarDeclaration *v = new VarDeclaration(loc, arg->type, id, NULL); | |
| 851 //printf("declaring parameter %s of type %s\n", v->toChars(), v->type->toChars()); | |
| 852 v->storage_class |= STCparameter; | |
| 853 if (f->varargs == 2 && i + 1 == nparams) | |
| 854 v->storage_class |= STCvariadic; | |
| 855 v->storage_class |= arg->storageClass & (STCin | STCout | STCref | STClazy); | |
| 856 if (v->storage_class & STClazy) | |
| 857 v->storage_class |= STCin; | |
| 858 v->semantic(sc2); | |
| 859 if (!sc2->insert(v)) | |
| 860 error("parameter %s.%s is already defined", toChars(), v->toChars()); | |
| 861 else | |
| 862 parameters->push(v); | |
| 863 localsymtab->insert(v); | |
| 864 v->parent = this; | |
| 865 } | |
| 866 } | |
| 867 | |
| 868 // Declare the tuple symbols and put them in the symbol table, | |
| 869 // but not in parameters[]. | |
| 870 if (f->parameters) | |
| 871 { | |
| 872 for (size_t i = 0; i < f->parameters->dim; i++) | |
| 873 { Argument *arg = (Argument *)f->parameters->data[i]; | |
| 874 | |
| 875 if (!arg->ident) | |
| 876 continue; // never used, so ignore | |
| 877 if (arg->type->ty == Ttuple) | |
| 878 { TypeTuple *t = (TypeTuple *)arg->type; | |
| 879 size_t dim = Argument::dim(t->arguments); | |
| 880 Objects *exps = new Objects(); | |
| 881 exps->setDim(dim); | |
| 882 for (size_t j = 0; j < dim; j++) | |
| 883 { Argument *narg = Argument::getNth(t->arguments, j); | |
| 884 assert(narg->ident); | |
| 885 VarDeclaration *v = sc2->search(0, narg->ident, NULL)->isVarDeclaration(); | |
| 886 assert(v); | |
|
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Merged DMD 1.034, array operations are not yet implemented ;)
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parents:
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diff
changeset
|
887 Expression *e = new VarExp(v->loc, v); |
| 159 | 888 exps->data[j] = (void *)e; |
| 889 } | |
| 890 assert(arg->ident); | |
|
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diff
changeset
|
891 TupleDeclaration *v = new TupleDeclaration(loc, arg->ident, exps); |
| 159 | 892 //printf("declaring tuple %s\n", v->toChars()); |
| 893 v->isexp = 1; | |
| 894 if (!sc2->insert(v)) | |
| 895 error("parameter %s.%s is already defined", toChars(), v->toChars()); | |
| 896 localsymtab->insert(v); | |
| 897 v->parent = this; | |
| 898 } | |
| 899 } | |
| 900 } | |
| 901 | |
| 902 /* Do the semantic analysis on the [in] preconditions and | |
| 903 * [out] postconditions. | |
| 904 */ | |
| 905 sc2->incontract++; | |
| 906 | |
| 907 if (frequire) | |
| 908 { /* frequire is composed of the [in] contracts | |
| 909 */ | |
| 910 // BUG: need to error if accessing out parameters | |
| 911 // BUG: need to treat parameters as const | |
| 912 // BUG: need to disallow returns and throws | |
| 913 // BUG: verify that all in and ref parameters are read | |
| 914 frequire = frequire->semantic(sc2); | |
| 915 labtab = NULL; // so body can't refer to labels | |
| 916 } | |
| 917 | |
| 918 if (fensure || addPostInvariant()) | |
| 919 { /* fensure is composed of the [out] contracts | |
| 920 */ | |
| 921 ScopeDsymbol *sym = new ScopeDsymbol(); | |
| 922 sym->parent = sc2->scopesym; | |
| 923 sc2 = sc2->push(sym); | |
| 924 | |
| 925 assert(type->nextOf()); | |
| 926 if (type->nextOf()->ty == Tvoid) | |
| 927 { | |
| 928 if (outId) | |
| 929 error("void functions have no result"); | |
| 930 } | |
| 931 else | |
| 932 { | |
| 933 if (!outId) | |
| 934 outId = Id::result; // provide a default | |
| 935 } | |
| 936 | |
| 937 if (outId) | |
| 938 { // Declare result variable | |
| 939 VarDeclaration *v; | |
| 940 Loc loc = this->loc; | |
| 941 | |
| 942 if (fensure) | |
| 943 loc = fensure->loc; | |
| 944 | |
| 945 v = new VarDeclaration(loc, type->nextOf(), outId, NULL); | |
| 946 v->noauto = 1; | |
| 947 sc2->incontract--; | |
| 948 v->semantic(sc2); | |
| 949 sc2->incontract++; | |
| 950 if (!sc2->insert(v)) | |
| 951 error("out result %s is already defined", v->toChars()); | |
| 952 v->parent = this; | |
| 953 vresult = v; | |
| 954 | |
| 955 // vresult gets initialized with the function return value | |
| 956 // in ReturnStatement::semantic() | |
| 957 } | |
| 958 | |
| 959 // BUG: need to treat parameters as const | |
| 960 // BUG: need to disallow returns and throws | |
| 961 if (fensure) | |
| 962 { fensure = fensure->semantic(sc2); | |
| 963 labtab = NULL; // so body can't refer to labels | |
| 964 } | |
| 965 | |
| 966 if (!global.params.useOut) | |
| 967 { fensure = NULL; // discard | |
| 968 vresult = NULL; | |
| 969 } | |
| 970 | |
| 971 // Postcondition invariant | |
| 972 if (addPostInvariant()) | |
| 973 { | |
| 974 Expression *e = NULL; | |
| 975 if (isCtorDeclaration()) | |
| 976 { | |
| 977 // Call invariant directly only if it exists | |
| 978 InvariantDeclaration *inv = ad->inv; | |
| 979 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 980 | |
| 981 while (!inv && cd) | |
| 982 { | |
| 983 cd = cd->baseClass; | |
| 984 if (!cd) | |
| 985 break; | |
| 986 inv = cd->inv; | |
| 987 } | |
| 988 if (inv) | |
| 989 { | |
| 990 e = new DsymbolExp(0, inv); | |
| 991 e = new CallExp(0, e); | |
| 992 e = e->semantic(sc2); | |
| 993 } | |
| 994 } | |
| 995 else | |
| 996 { // Call invariant virtually | |
| 997 ThisExp *v = new ThisExp(0); | |
| 998 v->type = vthis->type; | |
| 999 e = new AssertExp(0, v); | |
| 1000 } | |
| 1001 if (e) | |
| 1002 { | |
| 1003 ExpStatement *s = new ExpStatement(0, e); | |
| 1004 if (fensure) | |
| 1005 fensure = new CompoundStatement(0, s, fensure); | |
| 1006 else | |
| 1007 fensure = s; | |
| 1008 } | |
| 1009 } | |
| 1010 | |
| 1011 if (fensure) | |
| 1012 { returnLabel = new LabelDsymbol(Id::returnLabel); | |
| 1013 LabelStatement *ls = new LabelStatement(0, Id::returnLabel, fensure); | |
| 1014 ls->isReturnLabel = 1; | |
| 1015 returnLabel->statement = ls; | |
| 1016 } | |
| 1017 sc2 = sc2->pop(); | |
| 1018 } | |
| 1019 | |
| 1020 sc2->incontract--; | |
| 1021 | |
| 1022 if (fbody) | |
| 1023 { ClassDeclaration *cd = isClassMember(); | |
| 1024 | |
| 1025 /* If this is a class constructor | |
| 1026 */ | |
| 1027 if (isCtorDeclaration() && cd) | |
| 1028 { | |
| 1029 for (int i = 0; i < cd->fields.dim; i++) | |
| 1030 { VarDeclaration *v = (VarDeclaration *)cd->fields.data[i]; | |
| 1031 | |
| 1032 v->ctorinit = 0; | |
| 1033 } | |
| 1034 } | |
| 1035 | |
| 1036 if (inferRetType || f->retStyle() != RETstack) | |
| 1037 nrvo_can = 0; | |
| 1038 | |
| 1039 fbody = fbody->semantic(sc2); | |
| 1040 | |
| 1041 if (inferRetType) | |
| 1042 { // If no return type inferred yet, then infer a void | |
| 1043 if (!type->nextOf()) | |
| 1044 { | |
| 1045 ((TypeFunction *)type)->next = Type::tvoid; | |
| 1046 type = type->semantic(loc, sc); | |
| 1047 } | |
| 1048 f = (TypeFunction *)type; | |
| 1049 } | |
| 1050 | |
| 336 | 1051 int offend = fbody ? fbody->blockExit() & BEfallthru : TRUE; |
| 159 | 1052 |
| 1053 if (isStaticCtorDeclaration()) | |
| 1054 { /* It's a static constructor. Ensure that all | |
| 1055 * ctor consts were initialized. | |
| 1056 */ | |
| 1057 | |
| 1058 Dsymbol *p = toParent(); | |
| 1059 ScopeDsymbol *ad = p->isScopeDsymbol(); | |
| 1060 if (!ad) | |
| 1061 { | |
| 1062 error("static constructor can only be member of struct/class/module, not %s %s", p->kind(), p->toChars()); | |
| 1063 } | |
| 1064 else | |
| 1065 { | |
| 1066 for (int i = 0; i < ad->members->dim; i++) | |
| 1067 { Dsymbol *s = (Dsymbol *)ad->members->data[i]; | |
| 1068 | |
| 1069 s->checkCtorConstInit(); | |
| 1070 } | |
| 1071 } | |
| 1072 } | |
| 1073 | |
| 1074 if (isCtorDeclaration() && cd) | |
| 1075 { | |
| 1076 //printf("callSuper = x%x\n", sc2->callSuper); | |
| 1077 | |
| 1078 // Verify that all the ctorinit fields got initialized | |
| 1079 if (!(sc2->callSuper & CSXthis_ctor)) | |
| 1080 { | |
| 1081 for (int i = 0; i < cd->fields.dim; i++) | |
| 1082 { VarDeclaration *v = (VarDeclaration *)cd->fields.data[i]; | |
| 1083 | |
| 1084 if (v->ctorinit == 0 && v->isCtorinit()) | |
| 1085 error("missing initializer for const field %s", v->toChars()); | |
| 1086 } | |
| 1087 } | |
| 1088 | |
| 1089 if (!(sc2->callSuper & CSXany_ctor) && | |
| 1090 cd->baseClass && cd->baseClass->ctor) | |
| 1091 { | |
| 1092 sc2->callSuper = 0; | |
| 1093 | |
| 1094 // Insert implicit super() at start of fbody | |
| 1095 Expression *e1 = new SuperExp(0); | |
| 1096 Expression *e = new CallExp(0, e1); | |
| 1097 | |
| 1098 unsigned errors = global.errors; | |
| 1099 global.gag++; | |
| 1100 e = e->semantic(sc2); | |
| 1101 global.gag--; | |
| 1102 if (errors != global.errors) | |
| 1103 error("no match for implicit super() call in constructor"); | |
| 1104 | |
| 1105 Statement *s = new ExpStatement(0, e); | |
| 1106 fbody = new CompoundStatement(0, s, fbody); | |
| 1107 } | |
| 1108 } | |
| 1109 else if (fes) | |
| 1110 { // For foreach(){} body, append a return 0; | |
| 1111 Expression *e = new IntegerExp(0); | |
| 1112 Statement *s = new ReturnStatement(0, e); | |
| 1113 fbody = new CompoundStatement(0, fbody, s); | |
| 1114 assert(!returnLabel); | |
| 1115 } | |
| 1116 else if (!hasReturnExp && type->nextOf()->ty != Tvoid) | |
| 1117 error("expected to return a value of type %s", type->nextOf()->toChars()); | |
| 1118 else if (!inlineAsm) | |
| 1119 { | |
| 1120 if (type->nextOf()->ty == Tvoid) | |
| 1121 { | |
| 1122 if (offend && isMain()) | |
| 1123 { // Add a return 0; statement | |
| 1124 Statement *s = new ReturnStatement(0, new IntegerExp(0)); | |
| 1125 fbody = new CompoundStatement(0, fbody, s); | |
| 1126 } | |
| 1127 } | |
| 1128 else | |
| 1129 { | |
| 1130 if (offend) | |
| 1131 { Expression *e; | |
| 1132 | |
|
1103
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Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
957
diff
changeset
|
1133 warning(loc, "no return at end of function"); |
| 159 | 1134 |
| 1135 if (global.params.useAssert && | |
| 1136 !global.params.useInline) | |
| 1137 { /* Add an assert(0, msg); where the missing return | |
| 1138 * should be. | |
| 1139 */ | |
| 1140 e = new AssertExp( | |
| 1141 endloc, | |
| 1142 new IntegerExp(0), | |
|
1103
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- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
957
diff
changeset
|
1143 new StringExp(loc, (char *)"missing return expression") |
| 159 | 1144 ); |
| 1145 } | |
| 1146 else | |
| 1147 e = new HaltExp(endloc); | |
| 1148 e = new CommaExp(0, e, type->nextOf()->defaultInit()); | |
| 1149 e = e->semantic(sc2); | |
| 1150 Statement *s = new ExpStatement(0, e); | |
| 1151 fbody = new CompoundStatement(0, fbody, s); | |
| 1152 } | |
| 1153 } | |
| 1154 } | |
| 1155 } | |
| 1156 | |
| 1157 { | |
| 1158 Statements *a = new Statements(); | |
| 1159 | |
| 1160 // Merge in initialization of 'out' parameters | |
| 1161 if (parameters) | |
| 1162 { for (size_t i = 0; i < parameters->dim; i++) | |
| 1163 { | |
| 1164 VarDeclaration *v = (VarDeclaration *)parameters->data[i]; | |
| 1165 if (v->storage_class & STCout) | |
| 1166 { | |
| 1167 assert(v->init); | |
| 1168 ExpInitializer *ie = v->init->isExpInitializer(); | |
| 1169 assert(ie); | |
| 1170 a->push(new ExpStatement(0, ie->exp)); | |
| 1171 } | |
| 1172 } | |
| 1173 } | |
| 1174 | |
| 1175 // we'll handle variadics ourselves | |
| 1176 #if !IN_LLVM | |
| 1177 if (argptr) | |
| 1178 { // Initialize _argptr to point past non-variadic arg | |
| 1179 #if IN_GCC | |
| 1180 // Handled in FuncDeclaration::toObjFile | |
| 1181 v_argptr = argptr; | |
| 1182 v_argptr->init = new VoidInitializer(loc); | |
| 1183 #else | |
| 1184 Expression *e1; | |
| 1185 Expression *e; | |
| 1186 Type *t = argptr->type; | |
| 1187 VarDeclaration *p; | |
| 1188 unsigned offset; | |
| 1189 | |
| 1190 e1 = new VarExp(0, argptr); | |
| 1191 if (parameters && parameters->dim) | |
| 1192 p = (VarDeclaration *)parameters->data[parameters->dim - 1]; | |
| 1193 else | |
| 1194 p = v_arguments; // last parameter is _arguments[] | |
| 1195 offset = p->type->size(); | |
| 1196 offset = (offset + 3) & ~3; // assume stack aligns on 4 | |
| 1197 e = new SymOffExp(0, p, offset); | |
| 1198 e = new AssignExp(0, e1, e); | |
| 1199 e->type = t; | |
| 1200 a->push(new ExpStatement(0, e)); | |
| 1201 #endif // IN_GCC | |
| 1202 } | |
| 1203 | |
| 1204 if (_arguments) | |
| 1205 { | |
| 1206 /* Advance to elements[] member of TypeInfo_Tuple with: | |
| 1207 * _arguments = v_arguments.elements; | |
| 1208 */ | |
| 1209 Expression *e = new VarExp(0, v_arguments); | |
| 1210 e = new DotIdExp(0, e, Id::elements); | |
| 1211 Expression *e1 = new VarExp(0, _arguments); | |
| 1212 e = new AssignExp(0, e1, e); | |
| 1213 e = e->semantic(sc); | |
| 1214 a->push(new ExpStatement(0, e)); | |
| 1215 } | |
| 1216 | |
| 1217 #endif // !IN_LLVM | |
| 1218 | |
| 1219 // Merge contracts together with body into one compound statement | |
| 1220 | |
| 1221 #ifdef _DH | |
| 1222 if (frequire && global.params.useIn) | |
| 1223 { frequire->incontract = 1; | |
| 1224 a->push(frequire); | |
| 1225 } | |
| 1226 #else | |
| 1227 if (frequire && global.params.useIn) | |
| 1228 a->push(frequire); | |
| 1229 #endif | |
| 1230 | |
| 1231 // Precondition invariant | |
| 1232 if (addPreInvariant()) | |
| 1233 { | |
| 1234 Expression *e = NULL; | |
| 1235 if (isDtorDeclaration()) | |
| 1236 { | |
| 1237 // Call invariant directly only if it exists | |
| 1238 InvariantDeclaration *inv = ad->inv; | |
| 1239 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 1240 | |
| 1241 while (!inv && cd) | |
| 1242 { | |
| 1243 cd = cd->baseClass; | |
| 1244 if (!cd) | |
| 1245 break; | |
| 1246 inv = cd->inv; | |
| 1247 } | |
| 1248 if (inv) | |
| 1249 { | |
| 1250 e = new DsymbolExp(0, inv); | |
| 1251 e = new CallExp(0, e); | |
| 1252 e = e->semantic(sc2); | |
| 1253 } | |
| 1254 } | |
| 1255 else | |
| 1256 { // Call invariant virtually | |
| 1257 ThisExp *v = new ThisExp(0); | |
| 1258 v->type = vthis->type; | |
|
1195
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Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1177
diff
changeset
|
1259 Expression *se = new StringExp(0, (char *)"null this"); |
| 159 | 1260 se = se->semantic(sc); |
| 1261 se->type = Type::tchar->arrayOf(); | |
| 1262 e = new AssertExp(loc, v, se); | |
| 1263 } | |
| 1264 if (e) | |
| 1265 { | |
| 1266 ExpStatement *s = new ExpStatement(0, e); | |
| 1267 a->push(s); | |
| 1268 } | |
| 1269 } | |
| 1270 | |
| 1271 if (fbody) | |
| 1272 a->push(fbody); | |
| 1273 | |
| 1274 if (fensure) | |
| 1275 { | |
| 1276 a->push(returnLabel->statement); | |
| 1277 | |
| 1278 if (type->nextOf()->ty != Tvoid) | |
| 1279 { | |
| 1280 // Create: return vresult; | |
| 1281 assert(vresult); | |
| 1282 Expression *e = new VarExp(0, vresult); | |
| 1283 if (tintro) | |
| 1284 { e = e->implicitCastTo(sc, tintro->nextOf()); | |
| 1285 e = e->semantic(sc); | |
| 1286 } | |
| 1287 ReturnStatement *s = new ReturnStatement(0, e); | |
| 1288 a->push(s); | |
| 1289 } | |
| 1290 } | |
| 1291 | |
| 1292 fbody = new CompoundStatement(0, a); | |
|
1141
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1293 |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1294 // wrap body of synchronized functions in a synchronized statement |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1295 if (isSynchronized()) |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1296 { |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1297 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
|
1298 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
|
1299 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
|
1300 |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1301 Expression *sync; |
|
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
|
1302 if (isStatic()) |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1303 { |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1304 // 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
|
1305 sync = cd->type->dotExp(sc2, new TypeExp(loc, cd->type), Id::classinfo); |
|
1141
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1306 } |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1307 else |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1308 { |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1309 // 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
|
1310 sync = new VarExp(loc, vthis); |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1311 } |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1312 |
|
1158
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1313 // 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
|
1314 // 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
|
1315 // 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
|
1316 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
|
1317 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
|
1318 s->body = fbody; |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1319 |
|
1158
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1320 // LDC |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1321 LabelMap::iterator it, end = labmap.end(); |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1322 for (it = labmap.begin(); it != end; ++it) |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1323 if (it->second->enclosingScopeExit == NULL) |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1324 it->second->enclosingScopeExit = s; |
|
08c1c3bfea5a
Fix goto inside synchronized functions.
Christian Kamm <kamm incasoftware de>
parents:
1146
diff
changeset
|
1325 |
|
1141
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1326 a = new Statements; |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1327 a->push(s); |
|
f99a3b393c03
Reorganize EnclosingHandlers to require less changes to the frontend and allow us to
Christian Kamm <kamm incasoftware de>
parents:
1133
diff
changeset
|
1328 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
|
1329 } |
| 159 | 1330 } |
| 1331 | |
| 1332 sc2->callSuper = 0; | |
| 1333 sc2->pop(); | |
| 1334 } | |
| 1335 semanticRun = 2; | |
| 1336 } | |
| 1337 | |
| 1338 void FuncDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1339 { | |
| 1340 //printf("FuncDeclaration::toCBuffer() '%s'\n", toChars()); | |
| 1341 | |
| 1342 type->toCBuffer(buf, ident, hgs); | |
| 1343 bodyToCBuffer(buf, hgs); | |
| 1344 } | |
| 1345 | |
| 1346 | |
| 1347 void FuncDeclaration::bodyToCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1348 { | |
| 1349 if (fbody && | |
| 1350 (!hgs->hdrgen || hgs->tpltMember || canInline(1,1)) | |
| 1351 ) | |
| 1352 { buf->writenl(); | |
| 1353 | |
| 1354 // in{} | |
| 1355 if (frequire) | |
| 1356 { buf->writestring("in"); | |
| 1357 buf->writenl(); | |
| 1358 frequire->toCBuffer(buf, hgs); | |
| 1359 } | |
| 1360 | |
| 1361 // out{} | |
| 1362 if (fensure) | |
| 1363 { buf->writestring("out"); | |
| 1364 if (outId) | |
| 1365 { buf->writebyte('('); | |
| 1366 buf->writestring(outId->toChars()); | |
| 1367 buf->writebyte(')'); | |
| 1368 } | |
| 1369 buf->writenl(); | |
| 1370 fensure->toCBuffer(buf, hgs); | |
| 1371 } | |
| 1372 | |
| 1373 if (frequire || fensure) | |
| 1374 { buf->writestring("body"); | |
| 1375 buf->writenl(); | |
| 1376 } | |
| 1377 | |
| 1378 buf->writebyte('{'); | |
| 1379 buf->writenl(); | |
| 1380 fbody->toCBuffer(buf, hgs); | |
| 1381 buf->writebyte('}'); | |
| 1382 buf->writenl(); | |
| 1383 } | |
| 1384 else | |
| 1385 { buf->writeByte(';'); | |
| 1386 buf->writenl(); | |
| 1387 } | |
| 1388 } | |
| 1389 | |
| 1390 /**************************************************** | |
| 1391 * Determine if 'this' overrides fd. | |
| 1392 * Return !=0 if it does. | |
| 1393 */ | |
| 1394 | |
| 1395 int FuncDeclaration::overrides(FuncDeclaration *fd) | |
| 1396 { int result = 0; | |
| 1397 | |
| 1398 if (fd->ident == ident) | |
| 1399 { | |
| 1400 int cov = type->covariant(fd->type); | |
| 1401 if (cov) | |
| 1402 { ClassDeclaration *cd1 = toParent()->isClassDeclaration(); | |
| 1403 ClassDeclaration *cd2 = fd->toParent()->isClassDeclaration(); | |
| 1404 | |
| 1405 if (cd1 && cd2 && cd2->isBaseOf(cd1, NULL)) | |
| 1406 result = 1; | |
| 1407 } | |
| 1408 } | |
| 1409 return result; | |
| 1410 } | |
| 1411 | |
| 1412 /************************************************* | |
| 1413 * Find index of function in vtbl[0..dim] that | |
| 1414 * this function overrides. | |
| 1415 * Returns: | |
| 1416 * -1 didn't find one | |
| 1417 * -2 can't determine because of forward references | |
| 1418 */ | |
| 1419 | |
| 1420 int FuncDeclaration::findVtblIndex(Array *vtbl, int dim) | |
| 1421 { | |
| 1422 for (int vi = 0; vi < dim; vi++) | |
| 1423 { | |
| 1424 FuncDeclaration *fdv = ((Dsymbol *)vtbl->data[vi])->isFuncDeclaration(); | |
| 1425 if (fdv && fdv->ident == ident) | |
| 1426 { | |
| 1427 int cov = type->covariant(fdv->type); | |
| 1428 //printf("\tbaseclass cov = %d\n", cov); | |
| 1429 switch (cov) | |
| 1430 { | |
| 1431 case 0: // types are distinct | |
| 1432 break; | |
| 1433 | |
| 1434 case 1: | |
| 1435 return vi; | |
| 1436 | |
| 1437 case 2: | |
| 1438 //type->print(); | |
| 1439 //fdv->type->print(); | |
| 1440 //printf("%s %s\n", type->deco, fdv->type->deco); | |
| 1441 error("of type %s overrides but is not covariant with %s of type %s", | |
| 1442 type->toChars(), fdv->toPrettyChars(), fdv->type->toChars()); | |
| 1443 break; | |
| 1444 | |
| 1445 case 3: | |
| 1446 return -2; // forward references | |
| 1447 | |
| 1448 default: | |
| 1449 assert(0); | |
| 1450 } | |
| 1451 } | |
| 1452 } | |
| 1453 return -1; | |
| 1454 } | |
| 1455 | |
| 1456 /**************************************************** | |
| 1457 * Overload this FuncDeclaration with the new one f. | |
| 1458 * Return !=0 if successful; i.e. no conflict. | |
| 1459 */ | |
| 1460 | |
| 1461 int FuncDeclaration::overloadInsert(Dsymbol *s) | |
| 1462 { | |
| 1463 FuncDeclaration *f; | |
| 1464 AliasDeclaration *a; | |
| 1465 | |
| 1466 //printf("FuncDeclaration::overloadInsert(%s)\n", s->toChars()); | |
| 1467 a = s->isAliasDeclaration(); | |
| 1468 if (a) | |
| 1469 { | |
| 1470 if (overnext) | |
| 1471 return overnext->overloadInsert(a); | |
| 1472 if (!a->aliassym && a->type->ty != Tident && a->type->ty != Tinstance) | |
| 1473 { | |
| 1474 //printf("\ta = '%s'\n", a->type->toChars()); | |
| 1475 return FALSE; | |
| 1476 } | |
| 1477 overnext = a; | |
| 1478 //printf("\ttrue: no conflict\n"); | |
| 1479 return TRUE; | |
| 1480 } | |
| 1481 f = s->isFuncDeclaration(); | |
| 1482 if (!f) | |
| 1483 return FALSE; | |
| 1484 | |
| 1485 if (type && f->type && // can be NULL for overloaded constructors | |
| 1486 f->type->covariant(type) && | |
| 1487 !isFuncAliasDeclaration()) | |
| 1488 { | |
| 1489 //printf("\tfalse: conflict %s\n", kind()); | |
| 1490 return FALSE; | |
| 1491 } | |
| 1492 | |
| 1493 if (overnext) | |
| 1494 return overnext->overloadInsert(f); | |
| 1495 overnext = f; | |
| 1496 //printf("\ttrue: no conflict\n"); | |
| 1497 return TRUE; | |
| 1498 } | |
| 1499 | |
| 1500 /******************************************** | |
| 1501 * Find function in overload list that exactly matches t. | |
| 1502 */ | |
| 1503 | |
| 1504 /*************************************************** | |
| 1505 * Visit each overloaded function in turn, and call | |
| 1506 * (*fp)(param, f) on it. | |
| 1507 * Exit when no more, or (*fp)(param, f) returns 1. | |
| 1508 * Returns: | |
| 1509 * 0 continue | |
| 1510 * 1 done | |
| 1511 */ | |
| 1512 | |
| 1513 int overloadApply(FuncDeclaration *fstart, | |
| 1514 int (*fp)(void *, FuncDeclaration *), | |
| 1515 void *param) | |
| 1516 { | |
| 1517 FuncDeclaration *f; | |
| 1518 Declaration *d; | |
| 1519 Declaration *next; | |
| 1520 | |
| 1521 for (d = fstart; d; d = next) | |
| 1522 { FuncAliasDeclaration *fa = d->isFuncAliasDeclaration(); | |
| 1523 | |
| 1524 if (fa) | |
| 1525 { | |
| 1526 if (overloadApply(fa->funcalias, fp, param)) | |
| 1527 return 1; | |
| 1528 next = fa->overnext; | |
| 1529 } | |
| 1530 else | |
| 1531 { | |
| 1532 AliasDeclaration *a = d->isAliasDeclaration(); | |
| 1533 | |
| 1534 if (a) | |
| 1535 { | |
| 1536 Dsymbol *s = a->toAlias(); | |
| 1537 next = s->isDeclaration(); | |
| 1538 if (next == a) | |
| 1539 break; | |
| 1540 if (next == fstart) | |
| 1541 break; | |
| 1542 } | |
| 1543 else | |
| 1544 { | |
| 1545 f = d->isFuncDeclaration(); | |
| 1546 if (!f) | |
| 1547 { d->error("is aliased to a function"); | |
| 1548 break; // BUG: should print error message? | |
| 1549 } | |
| 1550 if ((*fp)(param, f)) | |
| 1551 return 1; | |
| 1552 | |
| 1553 next = f->overnext; | |
| 1554 } | |
| 1555 } | |
| 1556 } | |
| 1557 return 0; | |
| 1558 } | |
| 1559 | |
| 1560 /******************************************** | |
| 1561 * Find function in overload list that exactly matches t. | |
| 1562 */ | |
| 1563 | |
| 1564 struct Param1 | |
| 1565 { | |
| 1566 Type *t; // type to match | |
| 1567 FuncDeclaration *f; // return value | |
| 1568 }; | |
| 1569 | |
| 1570 int fp1(void *param, FuncDeclaration *f) | |
| 1571 { Param1 *p = (Param1 *)param; | |
| 1572 Type *t = p->t; | |
| 1573 | |
| 1574 if (t->equals(f->type)) | |
| 1575 { p->f = f; | |
| 1576 return 1; | |
| 1577 } | |
| 1578 | |
| 336 | 1579 #if DMDV2 |
| 159 | 1580 /* Allow covariant matches, if it's just a const conversion |
| 1581 * of the return type | |
| 1582 */ | |
| 1583 if (t->ty == Tfunction) | |
| 1584 { TypeFunction *tf = (TypeFunction *)f->type; | |
| 1585 if (tf->covariant(t) == 1 && | |
| 1586 tf->nextOf()->implicitConvTo(t->nextOf()) >= MATCHconst) | |
| 1587 { | |
| 1588 p->f = f; | |
| 1589 return 1; | |
| 1590 } | |
| 1591 } | |
| 1592 #endif | |
| 1593 return 0; | |
| 1594 } | |
| 1595 | |
| 1596 FuncDeclaration *FuncDeclaration::overloadExactMatch(Type *t) | |
| 1597 { | |
| 1598 Param1 p; | |
| 1599 p.t = t; | |
| 1600 p.f = NULL; | |
| 1601 overloadApply(this, &fp1, &p); | |
| 1602 return p.f; | |
| 1603 } | |
| 1604 | |
| 1605 #if 0 | |
| 1606 FuncDeclaration *FuncDeclaration::overloadExactMatch(Type *t) | |
| 1607 { | |
| 1608 FuncDeclaration *f; | |
| 1609 Declaration *d; | |
| 1610 Declaration *next; | |
| 1611 | |
| 1612 for (d = this; d; d = next) | |
| 1613 { FuncAliasDeclaration *fa = d->isFuncAliasDeclaration(); | |
| 1614 | |
| 1615 if (fa) | |
| 1616 { | |
| 1617 FuncDeclaration *f2 = fa->funcalias->overloadExactMatch(t); | |
| 1618 if (f2) | |
| 1619 return f2; | |
| 1620 next = fa->overnext; | |
| 1621 } | |
| 1622 else | |
| 1623 { | |
| 1624 AliasDeclaration *a = d->isAliasDeclaration(); | |
| 1625 | |
| 1626 if (a) | |
| 1627 { | |
| 1628 Dsymbol *s = a->toAlias(); | |
| 1629 next = s->isDeclaration(); | |
| 1630 if (next == a) | |
| 1631 break; | |
| 1632 } | |
| 1633 else | |
| 1634 { | |
| 1635 f = d->isFuncDeclaration(); | |
| 1636 if (!f) | |
| 1637 break; // BUG: should print error message? | |
| 1638 if (t->equals(d->type)) | |
| 1639 return f; | |
| 1640 next = f->overnext; | |
| 1641 } | |
| 1642 } | |
| 1643 } | |
| 1644 return NULL; | |
| 1645 } | |
| 1646 #endif | |
| 1647 | |
| 1648 /******************************************** | |
| 1649 * Decide which function matches the arguments best. | |
| 1650 */ | |
| 1651 | |
| 1652 struct Param2 | |
| 1653 { | |
| 1654 Match *m; | |
| 1655 Expressions *arguments; | |
| 1656 }; | |
| 1657 | |
| 1658 int fp2(void *param, FuncDeclaration *f) | |
| 1659 { Param2 *p = (Param2 *)param; | |
| 1660 Match *m = p->m; | |
| 1661 Expressions *arguments = p->arguments; | |
| 1662 MATCH match; | |
| 1663 | |
| 1664 if (f != m->lastf) // skip duplicates | |
| 1665 { | |
| 1666 m->anyf = f; | |
|
510
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
1667 TypeFunction *tf = (TypeFunction *)f->type; |
| 159 | 1668 match = (MATCH) tf->callMatch(arguments); |
|
717
a26b0c5d5942
Merged DMD 1.036.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
703
diff
changeset
|
1669 //printf("1match = %d\n", match); |
| 159 | 1670 if (match != MATCHnomatch) |
| 1671 { | |
| 1672 if (match > m->last) | |
| 1673 goto LfIsBetter; | |
| 1674 | |
| 1675 if (match < m->last) | |
| 1676 goto LlastIsBetter; | |
| 1677 | |
| 1678 /* See if one of the matches overrides the other. | |
| 1679 */ | |
| 1680 if (m->lastf->overrides(f)) | |
| 1681 goto LlastIsBetter; | |
| 1682 else if (f->overrides(m->lastf)) | |
| 1683 goto LfIsBetter; | |
| 1684 | |
| 1685 Lambiguous: | |
| 1686 m->nextf = f; | |
| 1687 m->count++; | |
| 1688 return 0; | |
| 1689 | |
| 1690 LfIsBetter: | |
| 1691 m->last = match; | |
| 1692 m->lastf = f; | |
| 1693 m->count = 1; | |
| 1694 return 0; | |
| 1695 | |
| 1696 LlastIsBetter: | |
| 1697 return 0; | |
| 1698 } | |
| 1699 } | |
| 1700 return 0; | |
| 1701 } | |
| 1702 | |
| 1703 | |
| 1704 void overloadResolveX(Match *m, FuncDeclaration *fstart, Expressions *arguments) | |
| 1705 { | |
| 1706 Param2 p; | |
| 1707 p.m = m; | |
| 1708 p.arguments = arguments; | |
| 1709 overloadApply(fstart, &fp2, &p); | |
| 1710 } | |
| 1711 | |
| 1712 #if 0 | |
| 1713 // Recursive helper function | |
| 1714 | |
| 1715 void overloadResolveX(Match *m, FuncDeclaration *fstart, Expressions *arguments) | |
| 1716 { | |
| 1717 MATCH match; | |
| 1718 Declaration *d; | |
| 1719 Declaration *next; | |
| 1720 | |
| 1721 for (d = fstart; d; d = next) | |
| 1722 { | |
| 1723 FuncDeclaration *f; | |
| 1724 FuncAliasDeclaration *fa; | |
| 1725 AliasDeclaration *a; | |
| 1726 | |
| 1727 fa = d->isFuncAliasDeclaration(); | |
| 1728 if (fa) | |
| 1729 { | |
| 1730 overloadResolveX(m, fa->funcalias, arguments); | |
| 1731 next = fa->overnext; | |
| 1732 } | |
| 1733 else if ((f = d->isFuncDeclaration()) != NULL) | |
| 1734 { | |
| 1735 next = f->overnext; | |
| 1736 if (f == m->lastf) | |
| 1737 continue; // skip duplicates | |
| 1738 else | |
| 1739 { | |
| 1740 TypeFunction *tf; | |
| 1741 | |
| 1742 m->anyf = f; | |
| 1743 tf = (TypeFunction *)f->type; | |
| 1744 match = (MATCH) tf->callMatch(arguments); | |
|
717
a26b0c5d5942
Merged DMD 1.036.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
703
diff
changeset
|
1745 //printf("2match = %d\n", match); |
| 159 | 1746 if (match != MATCHnomatch) |
| 1747 { | |
| 1748 if (match > m->last) | |
| 1749 goto LfIsBetter; | |
| 1750 | |
| 1751 if (match < m->last) | |
| 1752 goto LlastIsBetter; | |
| 1753 | |
| 1754 /* See if one of the matches overrides the other. | |
| 1755 */ | |
| 1756 if (m->lastf->overrides(f)) | |
| 1757 goto LlastIsBetter; | |
| 1758 else if (f->overrides(m->lastf)) | |
| 1759 goto LfIsBetter; | |
| 1760 | |
| 1761 Lambiguous: | |
| 1762 m->nextf = f; | |
| 1763 m->count++; | |
| 1764 continue; | |
| 1765 | |
| 1766 LfIsBetter: | |
| 1767 m->last = match; | |
| 1768 m->lastf = f; | |
| 1769 m->count = 1; | |
| 1770 continue; | |
| 1771 | |
| 1772 LlastIsBetter: | |
| 1773 continue; | |
| 1774 } | |
| 1775 } | |
| 1776 } | |
| 1777 else if ((a = d->isAliasDeclaration()) != NULL) | |
| 1778 { | |
| 1779 Dsymbol *s = a->toAlias(); | |
| 1780 next = s->isDeclaration(); | |
| 1781 if (next == a) | |
| 1782 break; | |
| 1783 if (next == fstart) | |
| 1784 break; | |
| 1785 } | |
| 1786 else | |
| 1787 { d->error("is aliased to a function"); | |
| 1788 break; | |
| 1789 } | |
| 1790 } | |
| 1791 } | |
| 1792 #endif | |
| 1793 | |
| 1794 FuncDeclaration *FuncDeclaration::overloadResolve(Loc loc, Expressions *arguments) | |
| 1795 { | |
| 1796 TypeFunction *tf; | |
| 1797 Match m; | |
| 1798 | |
| 1799 #if 0 | |
| 1800 printf("FuncDeclaration::overloadResolve('%s')\n", toChars()); | |
| 1801 if (arguments) | |
| 1802 { int i; | |
| 1803 | |
| 1804 for (i = 0; i < arguments->dim; i++) | |
| 1805 { Expression *arg; | |
| 1806 | |
| 1807 arg = (Expression *)arguments->data[i]; | |
| 1808 assert(arg->type); | |
| 1809 printf("\t%s: ", arg->toChars()); | |
| 1810 arg->type->print(); | |
| 1811 } | |
| 1812 } | |
| 1813 #endif | |
| 1814 | |
| 1815 memset(&m, 0, sizeof(m)); | |
| 1816 m.last = MATCHnomatch; | |
| 1817 overloadResolveX(&m, this, arguments); | |
| 1818 | |
| 1819 if (m.count == 1) // exactly one match | |
| 1820 { | |
| 1821 return m.lastf; | |
| 1822 } | |
| 1823 else | |
| 1824 { | |
| 1825 OutBuffer buf; | |
| 1826 | |
| 1827 if (arguments) | |
| 1828 { | |
| 1829 HdrGenState hgs; | |
| 1830 | |
| 1831 argExpTypesToCBuffer(&buf, arguments, &hgs); | |
| 1832 } | |
| 1833 | |
| 1834 if (m.last == MATCHnomatch) | |
| 1835 { | |
| 1836 tf = (TypeFunction *)type; | |
| 1837 | |
| 1838 //printf("tf = %s, args = %s\n", tf->deco, ((Expression *)arguments->data[0])->type->deco); | |
| 1839 error(loc, "%s does not match parameter types (%s)", | |
| 1840 Argument::argsTypesToChars(tf->parameters, tf->varargs), | |
| 1841 buf.toChars()); | |
| 1842 return m.anyf; // as long as it's not a FuncAliasDeclaration | |
| 1843 } | |
| 1844 else | |
| 1845 { | |
| 1846 #if 1 | |
| 1847 TypeFunction *t1 = (TypeFunction *)m.lastf->type; | |
| 1848 TypeFunction *t2 = (TypeFunction *)m.nextf->type; | |
| 1849 | |
| 1850 error(loc, "called with argument types:\n\t(%s)\nmatches both:\n\t%s%s\nand:\n\t%s%s", | |
| 1851 buf.toChars(), | |
| 1852 m.lastf->toPrettyChars(), Argument::argsTypesToChars(t1->parameters, t1->varargs), | |
| 1853 m.nextf->toPrettyChars(), Argument::argsTypesToChars(t2->parameters, t2->varargs)); | |
| 1854 #else | |
| 1855 error(loc, "overloads %s and %s both match argument list for %s", | |
| 1856 m.lastf->type->toChars(), | |
| 1857 m.nextf->type->toChars(), | |
| 1858 m.lastf->toChars()); | |
| 1859 #endif | |
| 1860 return m.lastf; | |
| 1861 } | |
| 1862 } | |
| 1863 } | |
| 1864 | |
| 1865 /******************************** | |
| 1866 * Labels are in a separate scope, one per function. | |
| 1867 */ | |
| 1868 | |
| 1869 LabelDsymbol *FuncDeclaration::searchLabel(Identifier *ident) | |
| 1870 { Dsymbol *s; | |
| 1871 | |
| 1872 if (!labtab) | |
| 1873 labtab = new DsymbolTable(); // guess we need one | |
| 1874 | |
| 1875 s = labtab->lookup(ident); | |
| 1876 if (!s) | |
| 1877 { | |
| 1878 s = new LabelDsymbol(ident); | |
| 1879 labtab->insert(s); | |
| 1880 } | |
| 1881 return (LabelDsymbol *)s; | |
| 1882 } | |
| 336 | 1883 |
| 159 | 1884 /**************************************** |
| 1885 * If non-static member function that has a 'this' pointer, | |
| 1886 * return the aggregate it is a member of. | |
| 1887 * Otherwise, return NULL. | |
| 1888 */ | |
| 1889 | |
| 1890 AggregateDeclaration *FuncDeclaration::isThis() | |
| 1891 { AggregateDeclaration *ad; | |
| 1892 | |
| 1893 //printf("+FuncDeclaration::isThis() '%s'\n", toChars()); | |
| 1894 ad = NULL; | |
| 1895 if ((storage_class & STCstatic) == 0) | |
| 1896 { | |
| 1897 ad = isMember2(); | |
| 1898 } | |
| 1899 //printf("-FuncDeclaration::isThis() %p\n", ad); | |
| 1900 return ad; | |
| 1901 } | |
| 1902 | |
| 1903 AggregateDeclaration *FuncDeclaration::isMember2() | |
| 1904 { AggregateDeclaration *ad; | |
| 1905 | |
| 1906 //printf("+FuncDeclaration::isMember2() '%s'\n", toChars()); | |
| 1907 ad = NULL; | |
| 1908 for (Dsymbol *s = this; s; s = s->parent) | |
| 1909 { | |
| 1910 //printf("\ts = '%s', parent = '%s', kind = %s\n", s->toChars(), s->parent->toChars(), s->parent->kind()); | |
| 1911 ad = s->isMember(); | |
| 1912 if (ad) | |
| 1913 { //printf("test4\n"); | |
| 1914 break; | |
| 1915 } | |
| 1916 if (!s->parent || | |
| 1917 (!s->parent->isTemplateInstance())) | |
| 1918 { //printf("test5\n"); | |
| 1919 break; | |
| 1920 } | |
| 1921 } | |
| 1922 //printf("-FuncDeclaration::isMember2() %p\n", ad); | |
| 1923 return ad; | |
| 1924 } | |
| 1925 | |
| 1926 /***************************************** | |
| 1927 * Determine lexical level difference from 'this' to nested function 'fd'. | |
| 1928 * Error if this cannot call fd. | |
| 1929 * Returns: | |
| 1930 * 0 same level | |
| 1931 * -1 increase nesting by 1 (fd is nested within 'this') | |
| 1932 * >0 decrease nesting by number | |
| 1933 */ | |
| 1934 | |
| 1935 int FuncDeclaration::getLevel(Loc loc, FuncDeclaration *fd) | |
| 1936 { int level; | |
| 1937 Dsymbol *s; | |
| 1938 Dsymbol *fdparent; | |
| 1939 | |
| 1940 //printf("FuncDeclaration::getLevel(fd = '%s')\n", fd->toChars()); | |
| 1941 fdparent = fd->toParent2(); | |
| 1942 if (fdparent == this) | |
| 1943 return -1; | |
| 1944 s = this; | |
| 1945 level = 0; | |
| 1946 while (fd != s && fdparent != s->toParent2()) | |
| 1947 { | |
| 1948 //printf("\ts = '%s'\n", s->toChars()); | |
| 1949 FuncDeclaration *thisfd = s->isFuncDeclaration(); | |
| 1950 if (thisfd) | |
| 1951 { if (!thisfd->isNested() && !thisfd->vthis) | |
| 1952 goto Lerr; | |
| 1953 } | |
| 1954 else | |
| 1955 { | |
| 1956 ClassDeclaration *thiscd = s->isClassDeclaration(); | |
| 1957 if (thiscd) | |
| 1958 { if (!thiscd->isNested()) | |
| 1959 goto Lerr; | |
| 1960 } | |
| 1961 else | |
| 1962 goto Lerr; | |
| 1963 } | |
| 1964 | |
| 1965 s = s->toParent2(); | |
| 1966 assert(s); | |
| 1967 level++; | |
| 1968 } | |
| 1969 return level; | |
| 1970 | |
| 1971 Lerr: | |
| 1972 error(loc, "cannot access frame of function %s", fd->toChars()); | |
| 1973 return 1; | |
| 1974 } | |
| 1975 | |
| 1976 void FuncDeclaration::appendExp(Expression *e) | |
| 1977 { Statement *s; | |
| 1978 | |
| 1979 s = new ExpStatement(0, e); | |
| 1980 appendState(s); | |
| 1981 } | |
| 1982 | |
| 1983 void FuncDeclaration::appendState(Statement *s) | |
| 1984 { CompoundStatement *cs; | |
| 1985 | |
| 1986 if (!fbody) | |
| 1987 { Statements *a; | |
| 1988 | |
| 1989 a = new Statements(); | |
| 1990 fbody = new CompoundStatement(0, a); | |
| 1991 } | |
| 1992 cs = fbody->isCompoundStatement(); | |
| 1993 cs->statements->push(s); | |
| 1994 } | |
| 1995 | |
| 1996 | |
| 1997 int FuncDeclaration::isMain() | |
| 1998 { | |
| 1999 return ident == Id::main && | |
| 2000 linkage != LINKc && !isMember() && !isNested(); | |
| 2001 } | |
| 2002 | |
| 2003 int FuncDeclaration::isWinMain() | |
| 2004 { | |
|
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2005 //printf("FuncDeclaration::isWinMain() %s\n", toChars()); |
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2006 #if 0 |
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2007 int x = ident == Id::WinMain && |
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2008 linkage != LINKc && !isMember(); |
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2009 printf("%s\n", x ? "yes" : "no"); |
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2010 return x; |
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2011 #else |
| 159 | 2012 return ident == Id::WinMain && |
| 2013 linkage != LINKc && !isMember(); | |
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2014 #endif |
| 159 | 2015 } |
| 2016 | |
| 2017 int FuncDeclaration::isDllMain() | |
| 2018 { | |
| 2019 return ident == Id::DllMain && | |
| 2020 linkage != LINKc && !isMember(); | |
| 2021 } | |
| 2022 | |
| 2023 int FuncDeclaration::isExport() | |
| 2024 { | |
| 2025 return protection == PROTexport; | |
| 2026 } | |
| 2027 | |
| 2028 int FuncDeclaration::isImportedSymbol() | |
| 2029 { | |
| 2030 //printf("isImportedSymbol()\n"); | |
| 2031 //printf("protection = %d\n", protection); | |
| 2032 return (protection == PROTexport) && !fbody; | |
| 2033 } | |
| 2034 | |
| 2035 // Determine if function goes into virtual function pointer table | |
| 2036 | |
| 2037 int FuncDeclaration::isVirtual() | |
| 2038 { | |
| 2039 #if 0 | |
| 2040 printf("FuncDeclaration::isVirtual(%s)\n", toChars()); | |
| 2041 printf("%p %d %d %d %d\n", isMember(), isStatic(), protection == PROTprivate, isCtorDeclaration(), linkage != LINKd); | |
| 2042 printf("result is %d\n", | |
| 2043 isMember() && | |
| 2044 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && | |
| 2045 toParent()->isClassDeclaration()); | |
| 2046 #endif | |
| 2047 return isMember() && | |
| 2048 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && | |
| 2049 toParent()->isClassDeclaration(); | |
| 2050 } | |
| 2051 | |
|
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2052 int FuncDeclaration::isFinal() |
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2053 { |
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2054 ClassDeclaration *cd; |
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2055 #if 0 |
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2056 printf("FuncDeclaration::isFinal(%s)\n", toChars()); |
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2057 printf("%p %d %d %d %d\n", isMember(), isStatic(), protection == PROTprivate, isCtorDeclaration(), linkage != LINKd); |
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2058 printf("result is %d\n", |
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2059 isMember() && |
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2060 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && |
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2061 (cd = toParent()->isClassDeclaration()) != NULL && |
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2062 cd->storage_class & STCfinal); |
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2063 #endif |
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2064 return isMember() && |
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2065 (Declaration::isFinal() || |
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2066 ((cd = toParent()->isClassDeclaration()) != NULL && cd->storage_class & STCfinal)); |
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2067 } |
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2068 |
| 159 | 2069 int FuncDeclaration::isAbstract() |
| 2070 { | |
| 2071 return storage_class & STCabstract; | |
| 2072 } | |
| 2073 | |
| 2074 int FuncDeclaration::isCodeseg() | |
| 2075 { | |
| 2076 return TRUE; // functions are always in the code segment | |
| 2077 } | |
| 2078 | |
| 2079 // Determine if function needs | |
| 2080 // a static frame pointer to its lexically enclosing function | |
| 2081 | |
| 2082 int FuncDeclaration::isNested() | |
| 2083 { | |
| 2084 //if (!toParent()) | |
| 2085 //printf("FuncDeclaration::isNested('%s') parent=%p\n", toChars(), parent); | |
| 2086 //printf("\ttoParent() = '%s'\n", toParent()->toChars()); | |
| 2087 return ((storage_class & STCstatic) == 0) && | |
| 2088 (toParent2()->isFuncDeclaration() != NULL); | |
| 2089 } | |
| 2090 | |
| 2091 int FuncDeclaration::needThis() | |
| 2092 { | |
| 2093 //printf("FuncDeclaration::needThis() '%s'\n", toChars()); | |
| 2094 int i = isThis() != NULL; | |
| 2095 //printf("\t%d\n", i); | |
| 2096 if (!i && isFuncAliasDeclaration()) | |
| 2097 i = ((FuncAliasDeclaration *)this)->funcalias->needThis(); | |
| 2098 return i; | |
| 2099 } | |
| 2100 | |
| 2101 int FuncDeclaration::addPreInvariant() | |
| 2102 { | |
| 2103 AggregateDeclaration *ad = isThis(); | |
| 2104 return (ad && | |
| 2105 //ad->isClassDeclaration() && | |
| 2106 global.params.useInvariants && | |
| 2107 (protection == PROTpublic || protection == PROTexport) && | |
| 2108 !naked); | |
| 2109 } | |
| 2110 | |
| 2111 int FuncDeclaration::addPostInvariant() | |
| 2112 { | |
| 2113 AggregateDeclaration *ad = isThis(); | |
| 2114 return (ad && | |
| 2115 ad->inv && | |
| 2116 //ad->isClassDeclaration() && | |
| 2117 global.params.useInvariants && | |
| 2118 (protection == PROTpublic || protection == PROTexport) && | |
| 2119 !naked); | |
| 2120 } | |
| 2121 | |
| 2122 /********************************** | |
| 2123 * Generate a FuncDeclaration for a runtime library function. | |
| 2124 */ | |
| 2125 | |
|
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2126 // |
|
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2127 // LDC: Adjusted to give argument info to the runtime function decl. |
|
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2128 // |
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2129 |
|
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2130 FuncDeclaration *FuncDeclaration::genCfunc(Arguments *args, Type *treturn, const char *name) |
| 159 | 2131 { |
|
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2132 return genCfunc(args, treturn, Lexer::idPool(name)); |
| 159 | 2133 } |
| 2134 | |
|
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|
2135 FuncDeclaration *FuncDeclaration::genCfunc(Arguments *args, Type *treturn, Identifier *id) |
| 159 | 2136 { |
| 2137 FuncDeclaration *fd; | |
| 2138 TypeFunction *tf; | |
| 2139 Dsymbol *s; | |
| 2140 static DsymbolTable *st = NULL; | |
| 2141 | |
| 2142 //printf("genCfunc(name = '%s')\n", id->toChars()); | |
| 2143 //printf("treturn\n\t"); treturn->print(); | |
| 2144 | |
| 2145 // See if already in table | |
| 2146 if (!st) | |
| 2147 st = new DsymbolTable(); | |
| 2148 s = st->lookup(id); | |
| 2149 if (s) | |
| 2150 { | |
| 2151 fd = s->isFuncDeclaration(); | |
| 2152 assert(fd); | |
| 2153 assert(fd->type->nextOf()->equals(treturn)); | |
| 2154 } | |
| 2155 else | |
| 2156 { | |
|
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2157 tf = new TypeFunction(args, treturn, 0, LINKc); |
| 159 | 2158 fd = new FuncDeclaration(0, 0, id, STCstatic, tf); |
| 2159 fd->protection = PROTpublic; | |
| 2160 fd->linkage = LINKc; | |
| 2161 | |
| 2162 st->insert(fd); | |
| 2163 } | |
| 2164 return fd; | |
| 2165 } | |
| 2166 | |
| 336 | 2167 const char *FuncDeclaration::kind() |
| 159 | 2168 { |
| 2169 return "function"; | |
| 2170 } | |
| 336 | 2171 |
| 159 | 2172 /******************************* |
| 2173 * Look at all the variables in this function that are referenced | |
| 2174 * by nested functions, and determine if a closure needs to be | |
| 2175 * created for them. | |
| 2176 */ | |
| 2177 | |
| 336 | 2178 #if DMDV2 |
| 159 | 2179 int FuncDeclaration::needsClosure() |
| 2180 { | |
| 2181 /* Need a closure for all the closureVars[] if any of the | |
| 2182 * closureVars[] are accessed by a | |
| 2183 * function that escapes the scope of this function. | |
| 2184 * We take the conservative approach and decide that any function that: | |
| 2185 * 1) is a virtual function | |
| 2186 * 2) has its address taken | |
| 2187 * 3) has a parent that escapes | |
| 336 | 2188 * |
| 2189 * Note that since a non-virtual function can be called by | |
| 2190 * a virtual one, if that non-virtual function accesses a closure | |
| 2191 * var, the closure still has to be taken. Hence, we check for isThis() | |
| 2192 * instead of isVirtual(). (thanks to David Friedman) | |
| 159 | 2193 */ |
| 2194 | |
| 2195 //printf("FuncDeclaration::needsClosure() %s\n", toChars()); | |
| 2196 for (int i = 0; i < closureVars.dim; i++) | |
| 2197 { VarDeclaration *v = (VarDeclaration *)closureVars.data[i]; | |
| 2198 assert(v->isVarDeclaration()); | |
| 2199 //printf("\tv = %s\n", v->toChars()); | |
| 2200 | |
| 2201 for (int j = 0; j < v->nestedrefs.dim; j++) | |
| 2202 { FuncDeclaration *f = (FuncDeclaration *)v->nestedrefs.data[j]; | |
| 2203 assert(f != this); | |
| 2204 | |
| 2205 //printf("\t\tf = %s, %d, %d\n", f->toChars(), f->isVirtual(), f->tookAddressOf); | |
| 336 | 2206 if (f->isThis() || f->tookAddressOf) |
| 159 | 2207 goto Lyes; // assume f escapes this function's scope |
| 2208 | |
| 2209 // Look to see if any parents of f that are below this escape | |
|
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2210 for (Dsymbol *s = f->parent; s && s != this; s = s->parent) |
| 159 | 2211 { |
| 2212 f = s->isFuncDeclaration(); | |
| 336 | 2213 if (f && (f->isThis() || f->tookAddressOf)) |
| 159 | 2214 goto Lyes; |
| 2215 } | |
| 2216 } | |
| 2217 } | |
| 2218 return 0; | |
| 2219 | |
| 2220 Lyes: | |
| 2221 //printf("\tneeds closure\n"); | |
| 2222 return 1; | |
| 2223 } | |
| 2224 #endif | |
| 2225 | |
| 2226 /****************************** FuncAliasDeclaration ************************/ | |
| 2227 | |
| 2228 // Used as a way to import a set of functions from another scope into this one. | |
| 2229 | |
| 2230 FuncAliasDeclaration::FuncAliasDeclaration(FuncDeclaration *funcalias) | |
| 2231 : FuncDeclaration(funcalias->loc, funcalias->endloc, funcalias->ident, | |
| 2232 (enum STC)funcalias->storage_class, funcalias->type) | |
| 2233 { | |
| 2234 assert(funcalias != this); | |
| 2235 this->funcalias = funcalias; | |
| 2236 } | |
| 2237 | |
| 336 | 2238 const char *FuncAliasDeclaration::kind() |
| 159 | 2239 { |
| 2240 return "function alias"; | |
| 2241 } | |
| 2242 | |
| 2243 | |
| 2244 /****************************** FuncLiteralDeclaration ************************/ | |
| 2245 | |
| 2246 FuncLiteralDeclaration::FuncLiteralDeclaration(Loc loc, Loc endloc, Type *type, | |
| 2247 enum TOK tok, ForeachStatement *fes) | |
| 2248 : FuncDeclaration(loc, endloc, NULL, STCundefined, type) | |
| 2249 { | |
|
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2250 const char *id; |
| 159 | 2251 |
| 2252 if (fes) | |
| 2253 id = "__foreachbody"; | |
| 2254 else if (tok == TOKdelegate) | |
| 2255 id = "__dgliteral"; | |
| 2256 else | |
| 2257 id = "__funcliteral"; | |
| 2258 this->ident = Identifier::generateId(id); | |
| 2259 this->tok = tok; | |
| 2260 this->fes = fes; | |
| 2261 //printf("FuncLiteralDeclaration() id = '%s', type = '%s'\n", this->ident->toChars(), type->toChars()); | |
| 2262 } | |
| 2263 | |
| 2264 Dsymbol *FuncLiteralDeclaration::syntaxCopy(Dsymbol *s) | |
| 2265 { | |
| 2266 FuncLiteralDeclaration *f; | |
| 2267 | |
| 2268 //printf("FuncLiteralDeclaration::syntaxCopy('%s')\n", toChars()); | |
| 2269 if (s) | |
| 2270 f = (FuncLiteralDeclaration *)s; | |
| 2271 else | |
| 2272 f = new FuncLiteralDeclaration(loc, endloc, type->syntaxCopy(), tok, fes); | |
| 2273 FuncDeclaration::syntaxCopy(f); | |
| 2274 return f; | |
| 2275 } | |
| 2276 | |
| 2277 int FuncLiteralDeclaration::isNested() | |
| 2278 { | |
| 2279 //printf("FuncLiteralDeclaration::isNested() '%s'\n", toChars()); | |
| 2280 return (tok == TOKdelegate); | |
| 2281 } | |
| 2282 | |
| 336 | 2283 int FuncLiteralDeclaration::isVirtual() |
| 2284 { | |
| 2285 return FALSE; | |
| 2286 } | |
| 2287 | |
| 2288 const char *FuncLiteralDeclaration::kind() | |
| 159 | 2289 { |
| 2290 // GCC requires the (char*) casts | |
| 2291 return (tok == TOKdelegate) ? (char*)"delegate" : (char*)"function"; | |
| 2292 } | |
| 2293 | |
| 2294 void FuncLiteralDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2295 { | |
| 2296 static Identifier *idfunc; | |
| 2297 static Identifier *iddel; | |
| 2298 | |
| 2299 if (!idfunc) | |
| 2300 idfunc = new Identifier("function", 0); | |
| 2301 if (!iddel) | |
| 2302 iddel = new Identifier("delegate", 0); | |
| 2303 | |
| 2304 type->toCBuffer(buf, ((tok == TOKdelegate) ? iddel : idfunc), hgs); | |
| 2305 bodyToCBuffer(buf, hgs); | |
| 2306 } | |
| 2307 | |
| 2308 | |
| 2309 /********************************* CtorDeclaration ****************************/ | |
| 2310 | |
| 2311 CtorDeclaration::CtorDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs) | |
| 2312 : FuncDeclaration(loc, endloc, Id::ctor, STCundefined, NULL) | |
| 2313 { | |
| 2314 this->arguments = arguments; | |
| 2315 this->varargs = varargs; | |
|
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
2316 //printf("CtorDeclaration(loc = %s) %s\n", loc.toChars(), toChars()); |
| 159 | 2317 } |
| 2318 | |
| 2319 Dsymbol *CtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2320 { | |
| 2321 CtorDeclaration *f; | |
| 2322 | |
| 2323 f = new CtorDeclaration(loc, endloc, NULL, varargs); | |
| 2324 | |
| 2325 f->outId = outId; | |
| 2326 f->frequire = frequire ? frequire->syntaxCopy() : NULL; | |
| 2327 f->fensure = fensure ? fensure->syntaxCopy() : NULL; | |
| 2328 f->fbody = fbody ? fbody->syntaxCopy() : NULL; | |
| 2329 assert(!fthrows); // deprecated | |
| 2330 | |
| 2331 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2332 return f; | |
| 2333 } | |
| 2334 | |
| 2335 | |
| 2336 void CtorDeclaration::semantic(Scope *sc) | |
| 2337 { | |
| 2338 ClassDeclaration *cd; | |
| 2339 Type *tret; | |
| 2340 | |
| 2341 //printf("CtorDeclaration::semantic()\n"); | |
| 2342 if (type) | |
| 2343 return; | |
| 2344 | |
| 2345 sc = sc->push(); | |
| 2346 sc->stc &= ~STCstatic; // not a static constructor | |
| 2347 | |
| 2348 parent = sc->parent; | |
| 2349 Dsymbol *parent = toParent(); | |
| 2350 cd = parent->isClassDeclaration(); | |
| 2351 if (!cd) | |
| 2352 { | |
| 2353 error("constructors are only for class definitions"); | |
|
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ChristianK
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305
diff
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|
2354 fatal(); |
| 159 | 2355 tret = Type::tvoid; |
| 2356 } | |
| 2357 else | |
| 2358 tret = cd->type; //->referenceTo(); | |
| 2359 type = new TypeFunction(arguments, tret, varargs, LINKd); | |
| 336 | 2360 if (!originalType) |
| 2361 originalType = type; | |
| 159 | 2362 |
| 2363 sc->flags |= SCOPEctor; | |
| 2364 type = type->semantic(loc, sc); | |
| 2365 sc->flags &= ~SCOPEctor; | |
| 2366 | |
| 2367 // Append: | |
| 2368 // return this; | |
| 2369 // to the function body | |
| 2370 if (fbody) | |
| 2371 { Expression *e; | |
| 2372 Statement *s; | |
| 2373 | |
| 2374 e = new ThisExp(0); | |
| 2375 s = new ReturnStatement(0, e); | |
| 2376 fbody = new CompoundStatement(0, fbody, s); | |
| 2377 } | |
| 2378 | |
| 2379 FuncDeclaration::semantic(sc); | |
| 2380 | |
| 2381 sc->pop(); | |
| 2382 | |
| 2383 // See if it's the default constructor | |
| 2384 if (cd && varargs == 0 && Argument::dim(arguments) == 0) | |
| 2385 cd->defaultCtor = this; | |
| 2386 } | |
| 2387 | |
| 336 | 2388 const char *CtorDeclaration::kind() |
| 159 | 2389 { |
| 2390 return "constructor"; | |
| 2391 } | |
| 2392 | |
| 2393 char *CtorDeclaration::toChars() | |
| 2394 { | |
|
1103
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parents:
957
diff
changeset
|
2395 return (char *)"this"; |
| 159 | 2396 } |
| 2397 | |
| 2398 int CtorDeclaration::isVirtual() | |
| 2399 { | |
| 2400 return FALSE; | |
| 2401 } | |
| 2402 | |
| 2403 int CtorDeclaration::addPreInvariant() | |
| 2404 { | |
| 2405 return FALSE; | |
| 2406 } | |
| 2407 | |
| 2408 int CtorDeclaration::addPostInvariant() | |
| 2409 { | |
| 2410 return (vthis && global.params.useInvariants); | |
| 2411 } | |
| 2412 | |
| 2413 | |
| 2414 void CtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2415 { | |
| 2416 buf->writestring("this"); | |
| 2417 Argument::argsToCBuffer(buf, hgs, arguments, varargs); | |
| 2418 bodyToCBuffer(buf, hgs); | |
| 2419 } | |
| 2420 | |
| 2421 /********************************* DtorDeclaration ****************************/ | |
| 2422 | |
| 2423 DtorDeclaration::DtorDeclaration(Loc loc, Loc endloc) | |
| 2424 : FuncDeclaration(loc, endloc, Id::dtor, STCundefined, NULL) | |
| 2425 { | |
| 2426 } | |
| 2427 | |
| 2428 DtorDeclaration::DtorDeclaration(Loc loc, Loc endloc, Identifier *id) | |
| 2429 : FuncDeclaration(loc, endloc, id, STCundefined, NULL) | |
| 2430 { | |
| 2431 } | |
| 2432 | |
| 2433 Dsymbol *DtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2434 { | |
| 2435 assert(!s); | |
| 2436 DtorDeclaration *dd = new DtorDeclaration(loc, endloc, ident); | |
| 2437 return FuncDeclaration::syntaxCopy(dd); | |
| 2438 } | |
| 2439 | |
| 2440 | |
| 2441 void DtorDeclaration::semantic(Scope *sc) | |
| 2442 { | |
| 2443 ClassDeclaration *cd; | |
| 2444 | |
| 2445 parent = sc->parent; | |
| 2446 Dsymbol *parent = toParent(); | |
| 2447 cd = parent->isClassDeclaration(); | |
| 2448 if (!cd) | |
| 2449 { | |
| 2450 error("destructors only are for class definitions"); | |
|
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ChristianK
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diff
changeset
|
2451 fatal(); |
| 159 | 2452 } |
| 2453 else | |
| 2454 cd->dtors.push(this); | |
| 2455 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2456 | |
| 2457 sc = sc->push(); | |
| 2458 sc->stc &= ~STCstatic; // not a static destructor | |
| 2459 sc->linkage = LINKd; | |
| 2460 | |
| 2461 FuncDeclaration::semantic(sc); | |
| 2462 | |
| 2463 sc->pop(); | |
| 2464 } | |
| 2465 | |
| 2466 int DtorDeclaration::overloadInsert(Dsymbol *s) | |
| 2467 { | |
| 2468 return FALSE; // cannot overload destructors | |
| 2469 } | |
| 2470 | |
| 2471 int DtorDeclaration::addPreInvariant() | |
| 2472 { | |
| 2473 return (vthis && global.params.useInvariants); | |
| 2474 } | |
| 2475 | |
| 2476 int DtorDeclaration::addPostInvariant() | |
| 2477 { | |
| 2478 return FALSE; | |
| 2479 } | |
| 2480 | |
| 2481 int DtorDeclaration::isVirtual() | |
| 2482 { | |
| 2483 /* This should be FALSE so that dtor's don't get put into the vtbl[], | |
| 2484 * but doing so will require recompiling everything. | |
| 2485 */ | |
| 2486 #if BREAKABI | |
| 2487 return FALSE; | |
| 2488 #else | |
| 2489 return FuncDeclaration::isVirtual(); | |
| 2490 #endif | |
| 2491 } | |
| 2492 | |
| 2493 void DtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2494 { | |
| 2495 if (hgs->hdrgen) | |
| 2496 return; | |
| 2497 buf->writestring("~this()"); | |
| 2498 bodyToCBuffer(buf, hgs); | |
| 2499 } | |
| 2500 | |
| 2501 /********************************* StaticCtorDeclaration ****************************/ | |
| 2502 | |
| 2503 StaticCtorDeclaration::StaticCtorDeclaration(Loc loc, Loc endloc) | |
| 2504 : FuncDeclaration(loc, endloc, | |
|
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Christian Kamm <kamm incasoftware de>
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diff
changeset
|
2505 Identifier::generateId("_staticCtor"), STCstatic, NULL) |
| 159 | 2506 { |
| 2507 } | |
| 2508 | |
| 2509 Dsymbol *StaticCtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2510 { | |
| 2511 StaticCtorDeclaration *scd; | |
| 2512 | |
| 2513 assert(!s); | |
| 2514 scd = new StaticCtorDeclaration(loc, endloc); | |
| 2515 return FuncDeclaration::syntaxCopy(scd); | |
| 2516 } | |
| 2517 | |
| 2518 | |
| 2519 void StaticCtorDeclaration::semantic(Scope *sc) | |
| 2520 { | |
| 2521 //printf("StaticCtorDeclaration::semantic()\n"); | |
| 2522 | |
| 2523 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2524 | |
| 336 | 2525 /* If the static ctor appears within a template instantiation, |
| 2526 * it could get called multiple times by the module constructors | |
| 2527 * for different modules. Thus, protect it with a gate. | |
| 2528 */ | |
| 2529 if (inTemplateInstance()) | |
| 2530 { | |
| 2531 /* Add this prefix to the function: | |
| 2532 * static int gate; | |
| 2533 * if (++gate != 1) return; | |
| 2534 * Note that this is not thread safe; should not have threads | |
| 2535 * during static construction. | |
| 2536 */ | |
| 2537 Identifier *id = Lexer::idPool("__gate"); | |
| 2538 VarDeclaration *v = new VarDeclaration(0, Type::tint32, id, NULL); | |
| 2539 v->storage_class = STCstatic; | |
| 2540 Statements *sa = new Statements(); | |
| 2541 Statement *s = new DeclarationStatement(0, v); | |
| 2542 sa->push(s); | |
| 2543 Expression *e = new IdentifierExp(0, id); | |
| 2544 e = new AddAssignExp(0, e, new IntegerExp(1)); | |
| 2545 e = new EqualExp(TOKnotequal, 0, e, new IntegerExp(1)); | |
| 2546 s = new IfStatement(0, NULL, e, new ReturnStatement(0, NULL), NULL); | |
| 2547 sa->push(s); | |
| 2548 if (fbody) | |
| 2549 sa->push(fbody); | |
| 2550 fbody = new CompoundStatement(0, sa); | |
| 2551 } | |
| 2552 | |
| 159 | 2553 FuncDeclaration::semantic(sc); |
| 2554 | |
| 2555 // We're going to need ModuleInfo | |
| 2556 Module *m = getModule(); | |
| 2557 if (!m) | |
| 2558 m = sc->module; | |
| 2559 if (m) | |
| 2560 { m->needmoduleinfo = 1; | |
| 2561 #ifdef IN_GCC | |
| 2562 m->strictlyneedmoduleinfo = 1; | |
| 2563 #endif | |
| 2564 } | |
| 2565 } | |
| 2566 | |
| 2567 AggregateDeclaration *StaticCtorDeclaration::isThis() | |
| 2568 { | |
| 2569 return NULL; | |
| 2570 } | |
| 2571 | |
| 2572 int StaticCtorDeclaration::isStaticConstructor() | |
| 2573 { | |
| 2574 return TRUE; | |
| 2575 } | |
| 2576 | |
| 2577 int StaticCtorDeclaration::isVirtual() | |
| 2578 { | |
| 2579 return FALSE; | |
| 2580 } | |
| 2581 | |
| 2582 int StaticCtorDeclaration::addPreInvariant() | |
| 2583 { | |
| 2584 return FALSE; | |
| 2585 } | |
| 2586 | |
| 2587 int StaticCtorDeclaration::addPostInvariant() | |
| 2588 { | |
| 2589 return FALSE; | |
| 2590 } | |
| 2591 | |
| 2592 void StaticCtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2593 { | |
| 2594 if (hgs->hdrgen) | |
| 2595 { buf->writestring("static this();\n"); | |
| 2596 return; | |
| 2597 } | |
| 2598 buf->writestring("static this()"); | |
| 2599 bodyToCBuffer(buf, hgs); | |
| 2600 } | |
| 2601 | |
| 2602 /********************************* StaticDtorDeclaration ****************************/ | |
| 2603 | |
| 2604 StaticDtorDeclaration::StaticDtorDeclaration(Loc loc, Loc endloc) | |
| 2605 : FuncDeclaration(loc, endloc, | |
|
957
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956
diff
changeset
|
2606 Identifier::generateId("_staticDtor"), STCstatic, NULL) |
| 159 | 2607 { |
| 336 | 2608 vgate = NULL; |
| 159 | 2609 } |
| 2610 | |
| 2611 Dsymbol *StaticDtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2612 { | |
| 2613 StaticDtorDeclaration *sdd; | |
| 2614 | |
| 2615 assert(!s); | |
| 2616 sdd = new StaticDtorDeclaration(loc, endloc); | |
| 2617 return FuncDeclaration::syntaxCopy(sdd); | |
| 2618 } | |
| 2619 | |
| 2620 | |
| 2621 void StaticDtorDeclaration::semantic(Scope *sc) | |
| 2622 { | |
| 2623 ClassDeclaration *cd; | |
| 2624 Type *tret; | |
| 2625 | |
| 2626 cd = sc->scopesym->isClassDeclaration(); | |
| 2627 if (!cd) | |
| 2628 { | |
| 2629 } | |
| 2630 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2631 | |
| 336 | 2632 /* If the static ctor appears within a template instantiation, |
| 2633 * it could get called multiple times by the module constructors | |
| 2634 * for different modules. Thus, protect it with a gate. | |
| 2635 */ | |
| 2636 if (inTemplateInstance()) | |
| 2637 { | |
| 2638 /* Add this prefix to the function: | |
| 2639 * static int gate; | |
| 2640 * if (--gate != 0) return; | |
| 2641 * Increment gate during constructor execution. | |
| 2642 * Note that this is not thread safe; should not have threads | |
| 2643 * during static destruction. | |
| 2644 */ | |
| 2645 Identifier *id = Lexer::idPool("__gate"); | |
| 2646 VarDeclaration *v = new VarDeclaration(0, Type::tint32, id, NULL); | |
| 2647 v->storage_class = STCstatic; | |
| 2648 Statements *sa = new Statements(); | |
| 2649 Statement *s = new DeclarationStatement(0, v); | |
| 2650 sa->push(s); | |
| 2651 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
|
2652 e = new AddAssignExp(0, e, new IntegerExp((uint64_t)-1)); |
|
658
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Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
644
diff
changeset
|
2653 e = new EqualExp(TOKnotequal, 0, e, new IntegerExp(0)); |
| 336 | 2654 s = new IfStatement(0, NULL, e, new ReturnStatement(0, NULL), NULL); |
| 2655 sa->push(s); | |
| 2656 if (fbody) | |
| 2657 sa->push(fbody); | |
| 2658 fbody = new CompoundStatement(0, sa); | |
| 2659 vgate = v; | |
| 2660 } | |
| 2661 | |
| 159 | 2662 FuncDeclaration::semantic(sc); |
| 2663 | |
| 2664 // We're going to need ModuleInfo | |
| 2665 Module *m = getModule(); | |
| 2666 if (!m) | |
| 2667 m = sc->module; | |
| 2668 if (m) | |
| 2669 { m->needmoduleinfo = 1; | |
| 2670 #ifdef IN_GCC | |
| 2671 m->strictlyneedmoduleinfo = 1; | |
| 2672 #endif | |
| 2673 } | |
| 2674 } | |
| 2675 | |
| 2676 AggregateDeclaration *StaticDtorDeclaration::isThis() | |
| 2677 { | |
| 2678 return NULL; | |
| 2679 } | |
| 2680 | |
| 2681 int StaticDtorDeclaration::isStaticDestructor() | |
| 2682 { | |
| 2683 return TRUE; | |
| 2684 } | |
| 2685 | |
| 2686 int StaticDtorDeclaration::isVirtual() | |
| 2687 { | |
| 2688 return FALSE; | |
| 2689 } | |
| 2690 | |
| 2691 int StaticDtorDeclaration::addPreInvariant() | |
| 2692 { | |
| 2693 return FALSE; | |
| 2694 } | |
| 2695 | |
| 2696 int StaticDtorDeclaration::addPostInvariant() | |
| 2697 { | |
| 2698 return FALSE; | |
| 2699 } | |
| 2700 | |
| 2701 void StaticDtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2702 { | |
| 2703 if (hgs->hdrgen) | |
| 2704 return; | |
| 2705 buf->writestring("static ~this()"); | |
| 2706 bodyToCBuffer(buf, hgs); | |
| 2707 } | |
| 2708 | |
| 2709 /********************************* InvariantDeclaration ****************************/ | |
| 2710 | |
| 2711 InvariantDeclaration::InvariantDeclaration(Loc loc, Loc endloc) | |
| 2712 : FuncDeclaration(loc, endloc, Id::classInvariant, STCundefined, NULL) | |
| 2713 { | |
| 2714 } | |
| 2715 | |
| 2716 Dsymbol *InvariantDeclaration::syntaxCopy(Dsymbol *s) | |
| 2717 { | |
| 2718 InvariantDeclaration *id; | |
| 2719 | |
| 2720 assert(!s); | |
| 2721 id = new InvariantDeclaration(loc, endloc); | |
| 2722 FuncDeclaration::syntaxCopy(id); | |
| 2723 return id; | |
| 2724 } | |
| 2725 | |
| 2726 | |
| 2727 void InvariantDeclaration::semantic(Scope *sc) | |
| 2728 { | |
| 2729 AggregateDeclaration *ad; | |
| 2730 Type *tret; | |
| 2731 | |
| 2732 parent = sc->parent; | |
| 2733 Dsymbol *parent = toParent(); | |
| 2734 ad = parent->isAggregateDeclaration(); | |
| 2735 if (!ad) | |
| 2736 { | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
957
diff
changeset
|
2737 error("invariants are only for struct/union/class definitions"); |
| 159 | 2738 return; |
| 2739 } | |
| 2740 else if (ad->inv && ad->inv != this) | |
| 2741 { | |
| 2742 error("more than one invariant for %s", ad->toChars()); | |
| 2743 } | |
| 2744 ad->inv = this; | |
| 2745 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2746 | |
| 2747 sc = sc->push(); | |
| 2748 sc->stc &= ~STCstatic; // not a static invariant | |
| 2749 sc->incontract++; | |
| 2750 sc->linkage = LINKd; | |
| 2751 | |
| 2752 FuncDeclaration::semantic(sc); | |
| 2753 | |
| 2754 sc->pop(); | |
| 2755 } | |
| 2756 | |
| 2757 int InvariantDeclaration::isVirtual() | |
| 2758 { | |
| 2759 return FALSE; | |
| 2760 } | |
| 2761 | |
| 2762 int InvariantDeclaration::addPreInvariant() | |
| 2763 { | |
| 2764 return FALSE; | |
| 2765 } | |
| 2766 | |
| 2767 int InvariantDeclaration::addPostInvariant() | |
| 2768 { | |
| 2769 return FALSE; | |
| 2770 } | |
| 2771 | |
| 2772 void InvariantDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2773 { | |
| 2774 if (hgs->hdrgen) | |
| 2775 return; | |
| 2776 buf->writestring("invariant"); | |
| 2777 bodyToCBuffer(buf, hgs); | |
| 2778 } | |
| 2779 | |
| 2780 | |
| 2781 /********************************* UnitTestDeclaration ****************************/ | |
| 2782 | |
| 2783 /******************************* | |
| 2784 * Generate unique unittest function Id so we can have multiple | |
| 2785 * instances per module. | |
| 2786 */ | |
| 2787 | |
| 2788 static Identifier *unitTestId() | |
| 2789 { | |
| 336 | 2790 return Lexer::uniqueId("__unittest"); |
| 159 | 2791 } |
| 2792 | |
| 2793 UnitTestDeclaration::UnitTestDeclaration(Loc loc, Loc endloc) | |
| 2794 : FuncDeclaration(loc, endloc, unitTestId(), STCundefined, NULL) | |
| 2795 { | |
| 2796 } | |
| 2797 | |
| 2798 Dsymbol *UnitTestDeclaration::syntaxCopy(Dsymbol *s) | |
| 2799 { | |
| 2800 UnitTestDeclaration *utd; | |
| 2801 | |
| 2802 assert(!s); | |
| 2803 utd = new UnitTestDeclaration(loc, endloc); | |
| 2804 return FuncDeclaration::syntaxCopy(utd); | |
| 2805 } | |
| 2806 | |
| 2807 | |
| 2808 void UnitTestDeclaration::semantic(Scope *sc) | |
| 2809 { | |
| 2810 if (global.params.useUnitTests) | |
| 2811 { | |
| 2812 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
|
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parents:
717
diff
changeset
|
2813 Scope *sc2 = sc->push(); |
|
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Merged DMD 1.037 frontend
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parents:
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diff
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|
2814 sc2->linkage = LINKd; |
|
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Merged DMD 1.037 frontend
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parents:
717
diff
changeset
|
2815 FuncDeclaration::semantic(sc2); |
|
bc982f1ad106
Merged DMD 1.037 frontend
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parents:
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diff
changeset
|
2816 sc2->pop(); |
| 159 | 2817 } |
| 2818 | |
| 2819 // We're going to need ModuleInfo even if the unit tests are not | |
| 2820 // compiled in, because other modules may import this module and refer | |
| 2821 // to this ModuleInfo. | |
| 2822 Module *m = getModule(); | |
| 2823 if (!m) | |
| 2824 m = sc->module; | |
| 2825 if (m) | |
| 2826 m->needmoduleinfo = 1; | |
| 2827 } | |
| 2828 | |
| 2829 AggregateDeclaration *UnitTestDeclaration::isThis() | |
| 2830 { | |
| 2831 return NULL; | |
| 2832 } | |
| 2833 | |
| 2834 int UnitTestDeclaration::isVirtual() | |
| 2835 { | |
| 2836 return FALSE; | |
| 2837 } | |
| 2838 | |
| 2839 int UnitTestDeclaration::addPreInvariant() | |
| 2840 { | |
| 2841 return FALSE; | |
| 2842 } | |
| 2843 | |
| 2844 int UnitTestDeclaration::addPostInvariant() | |
| 2845 { | |
| 2846 return FALSE; | |
| 2847 } | |
| 2848 | |
| 2849 void UnitTestDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2850 { | |
| 2851 if (hgs->hdrgen) | |
| 2852 return; | |
| 2853 buf->writestring("unittest"); | |
| 2854 bodyToCBuffer(buf, hgs); | |
| 2855 } | |
| 2856 | |
| 2857 /********************************* NewDeclaration ****************************/ | |
| 2858 | |
| 2859 NewDeclaration::NewDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs) | |
| 2860 : FuncDeclaration(loc, endloc, Id::classNew, STCstatic, NULL) | |
| 2861 { | |
| 2862 this->arguments = arguments; | |
| 2863 this->varargs = varargs; | |
| 2864 } | |
| 2865 | |
| 2866 Dsymbol *NewDeclaration::syntaxCopy(Dsymbol *s) | |
| 2867 { | |
| 2868 NewDeclaration *f; | |
| 2869 | |
| 2870 f = new NewDeclaration(loc, endloc, NULL, varargs); | |
| 2871 | |
| 2872 FuncDeclaration::syntaxCopy(f); | |
| 2873 | |
| 2874 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2875 | |
| 2876 return f; | |
| 2877 } | |
| 2878 | |
| 2879 | |
| 2880 void NewDeclaration::semantic(Scope *sc) | |
| 2881 { | |
| 2882 ClassDeclaration *cd; | |
| 2883 Type *tret; | |
| 2884 | |
| 2885 //printf("NewDeclaration::semantic()\n"); | |
| 2886 | |
| 2887 parent = sc->parent; | |
| 2888 Dsymbol *parent = toParent(); | |
| 2889 cd = parent->isClassDeclaration(); | |
| 2890 if (!cd && !parent->isStructDeclaration()) | |
| 2891 { | |
| 2892 error("new allocators only are for class or struct definitions"); | |
| 2893 } | |
| 2894 tret = Type::tvoid->pointerTo(); | |
| 2895 type = new TypeFunction(arguments, tret, varargs, LINKd); | |
| 2896 | |
| 2897 type = type->semantic(loc, sc); | |
| 2898 assert(type->ty == Tfunction); | |
| 2899 | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1177
diff
changeset
|
2900 // Check that there is at least one argument of type size_t |
| 159 | 2901 TypeFunction *tf = (TypeFunction *)type; |
| 2902 if (Argument::dim(tf->parameters) < 1) | |
| 2903 { | |
|
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
|
2904 error("at least one argument of type size_t expected"); |
| 159 | 2905 } |
| 2906 else | |
| 2907 { | |
| 2908 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
|
2909 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
|
2910 error("first argument must be type size_t, not %s", a->type->toChars()); |
| 159 | 2911 } |
| 2912 | |
| 2913 FuncDeclaration::semantic(sc); | |
| 2914 } | |
| 2915 | |
| 336 | 2916 const char *NewDeclaration::kind() |
| 159 | 2917 { |
| 2918 return "allocator"; | |
| 2919 } | |
| 2920 | |
| 2921 int NewDeclaration::isVirtual() | |
| 2922 { | |
| 2923 return FALSE; | |
| 2924 } | |
| 2925 | |
| 2926 int NewDeclaration::addPreInvariant() | |
| 2927 { | |
| 2928 return FALSE; | |
| 2929 } | |
| 2930 | |
| 2931 int NewDeclaration::addPostInvariant() | |
| 2932 { | |
| 2933 return FALSE; | |
| 2934 } | |
| 2935 | |
| 2936 void NewDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2937 { | |
| 2938 buf->writestring("new"); | |
| 2939 Argument::argsToCBuffer(buf, hgs, arguments, varargs); | |
| 2940 bodyToCBuffer(buf, hgs); | |
| 2941 } | |
| 2942 | |
| 2943 | |
| 2944 /********************************* DeleteDeclaration ****************************/ | |
| 2945 | |
| 2946 DeleteDeclaration::DeleteDeclaration(Loc loc, Loc endloc, Arguments *arguments) | |
| 2947 : FuncDeclaration(loc, endloc, Id::classDelete, STCstatic, NULL) | |
| 2948 { | |
| 2949 this->arguments = arguments; | |
| 2950 } | |
| 2951 | |
| 2952 Dsymbol *DeleteDeclaration::syntaxCopy(Dsymbol *s) | |
| 2953 { | |
| 2954 DeleteDeclaration *f; | |
| 2955 | |
| 2956 f = new DeleteDeclaration(loc, endloc, NULL); | |
| 2957 | |
| 2958 FuncDeclaration::syntaxCopy(f); | |
| 2959 | |
| 2960 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2961 | |
| 2962 return f; | |
| 2963 } | |
| 2964 | |
| 2965 | |
| 2966 void DeleteDeclaration::semantic(Scope *sc) | |
| 2967 { | |
| 2968 ClassDeclaration *cd; | |
| 2969 | |
| 2970 //printf("DeleteDeclaration::semantic()\n"); | |
| 2971 | |
| 2972 parent = sc->parent; | |
| 2973 Dsymbol *parent = toParent(); | |
| 2974 cd = parent->isClassDeclaration(); | |
| 2975 if (!cd && !parent->isStructDeclaration()) | |
| 2976 { | |
| 2977 error("new allocators only are for class or struct definitions"); | |
| 2978 } | |
| 2979 type = new TypeFunction(arguments, Type::tvoid, 0, LINKd); | |
| 2980 | |
| 2981 type = type->semantic(loc, sc); | |
| 2982 assert(type->ty == Tfunction); | |
| 2983 | |
| 2984 // Check that there is only one argument of type void* | |
| 2985 TypeFunction *tf = (TypeFunction *)type; | |
| 2986 if (Argument::dim(tf->parameters) != 1) | |
| 2987 { | |
| 2988 error("one argument of type void* expected"); | |
| 2989 } | |
| 2990 else | |
| 2991 { | |
| 2992 Argument *a = Argument::getNth(tf->parameters, 0); | |
| 2993 if (!a->type->equals(Type::tvoid->pointerTo())) | |
| 2994 error("one argument of type void* expected, not %s", a->type->toChars()); | |
| 2995 } | |
| 2996 | |
| 2997 FuncDeclaration::semantic(sc); | |
| 2998 } | |
| 2999 | |
| 336 | 3000 const char *DeleteDeclaration::kind() |
| 159 | 3001 { |
| 3002 return "deallocator"; | |
| 3003 } | |
| 3004 | |
| 3005 int DeleteDeclaration::isDelete() | |
| 3006 { | |
| 3007 return TRUE; | |
| 3008 } | |
| 3009 | |
| 3010 int DeleteDeclaration::isVirtual() | |
| 3011 { | |
| 3012 return FALSE; | |
| 3013 } | |
| 3014 | |
| 3015 int DeleteDeclaration::addPreInvariant() | |
| 3016 { | |
| 3017 return FALSE; | |
| 3018 } | |
| 3019 | |
| 3020 int DeleteDeclaration::addPostInvariant() | |
| 3021 { | |
| 3022 return FALSE; | |
| 3023 } | |
| 3024 | |
| 3025 void DeleteDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3026 { | |
| 3027 buf->writestring("delete"); | |
| 3028 Argument::argsToCBuffer(buf, hgs, arguments, 0); | |
| 3029 bodyToCBuffer(buf, hgs); | |
| 3030 } | |
| 3031 | |
| 3032 | |
| 3033 | |
| 3034 |