Mercurial > projects > ldc
annotate dmd/func.c @ 54:28e99b04a132 trunk
[svn r58] Fixed cond expression resulting in a non-basic type.
Fixed identity expression for dynamic arrays.
Revamped the system to keep track of lvalues and rvalues and their relations.
Typedef declaration now generate the custom typeinfo.
Other bugfixes.
| author | lindquist |
|---|---|
| date | Wed, 24 Oct 2007 01:37:34 +0200 |
| parents | 6fcc08a4d406 |
| children | a9d29e9f1fed |
| rev | line source |
|---|---|
| 1 | 1 |
| 2 // Compiler implementation of the D programming language | |
| 3 // Copyright (c) 1999-2007 by Digital Mars | |
| 4 // All Rights Reserved | |
| 5 // written by Walter Bright | |
| 6 // http://www.digitalmars.com | |
| 7 // License for redistribution is by either the Artistic License | |
| 8 // in artistic.txt, or the GNU General Public License in gnu.txt. | |
| 9 // See the included readme.txt for details. | |
| 10 | |
| 11 #include <stdio.h> | |
| 12 #include <assert.h> | |
| 13 | |
| 14 #include "mars.h" | |
| 15 #include "init.h" | |
| 16 #include "declaration.h" | |
| 17 #include "attrib.h" | |
| 18 #include "expression.h" | |
| 19 #include "scope.h" | |
| 20 #include "mtype.h" | |
| 21 #include "aggregate.h" | |
| 22 #include "identifier.h" | |
| 23 #include "id.h" | |
| 24 #include "module.h" | |
| 25 #include "statement.h" | |
| 26 #include "template.h" | |
| 27 #include "hdrgen.h" | |
| 28 | |
| 29 #ifdef IN_GCC | |
| 30 #include "d-dmd-gcc.h" | |
| 31 #endif | |
| 32 | |
| 33 /********************************* FuncDeclaration ****************************/ | |
| 34 | |
| 35 FuncDeclaration::FuncDeclaration(Loc loc, Loc endloc, Identifier *id, enum STC storage_class, Type *type) | |
| 36 : Declaration(id) | |
| 37 { | |
| 38 this->storage_class = storage_class; | |
| 39 this->type = type; | |
| 40 this->loc = loc; | |
| 41 this->endloc = endloc; | |
| 42 fthrows = NULL; | |
| 43 frequire = NULL; | |
| 44 outId = NULL; | |
| 45 vresult = NULL; | |
| 46 returnLabel = NULL; | |
| 47 fensure = NULL; | |
| 48 fbody = NULL; | |
| 49 localsymtab = NULL; | |
| 50 vthis = NULL; | |
| 51 v_arguments = NULL; | |
| 52 #if IN_GCC | |
| 53 v_argptr = NULL; | |
| 54 #endif | |
| 55 parameters = NULL; | |
| 56 labtab = NULL; | |
| 57 overnext = NULL; | |
| 58 vtblIndex = -1; | |
| 59 hasReturnExp = 0; | |
| 60 naked = 0; | |
| 61 inlineStatus = ILSuninitialized; | |
| 62 inlineNest = 0; | |
| 63 inlineAsm = 0; | |
| 64 cantInterpret = 0; | |
| 65 semanticRun = 0; | |
| 66 nestedFrameRef = 0; | |
| 67 fes = NULL; | |
| 68 introducing = 0; | |
| 69 tintro = NULL; | |
| 70 inferRetType = (type && type->nextOf() == NULL); | |
| 71 scope = NULL; | |
| 72 hasReturnExp = 0; | |
| 73 nrvo_can = 1; | |
| 74 nrvo_var = NULL; | |
| 75 shidden = NULL; | |
|
11
d3ee9efe20e2
[svn r15] * Fixed a bunch problems with virtual calls. Seems I did some rather poor testing.
lindquist
parents:
1
diff
changeset
|
76 llvmQueued = false; |
|
15
37a4fdab33fc
[svn r19] * Added support for reassigning 'this' inside class constructors.
lindquist
parents:
11
diff
changeset
|
77 llvmThisVar = NULL; |
|
50
6fcc08a4d406
[svn r54] Added support for nested delegates referencing parent's stack variables.
lindquist
parents:
35
diff
changeset
|
78 llvmNested = NULL; |
| 1 | 79 } |
| 80 | |
| 81 Dsymbol *FuncDeclaration::syntaxCopy(Dsymbol *s) | |
| 82 { | |
| 83 FuncDeclaration *f; | |
| 84 | |
| 85 //printf("FuncDeclaration::syntaxCopy('%s')\n", toChars()); | |
| 86 if (s) | |
| 87 f = (FuncDeclaration *)s; | |
| 88 else | |
| 89 f = new FuncDeclaration(loc, endloc, ident, (enum STC) storage_class, type->syntaxCopy()); | |
| 90 f->outId = outId; | |
| 91 f->frequire = frequire ? frequire->syntaxCopy() : NULL; | |
| 92 f->fensure = fensure ? fensure->syntaxCopy() : NULL; | |
| 93 f->fbody = fbody ? fbody->syntaxCopy() : NULL; | |
| 94 assert(!fthrows); // deprecated | |
| 95 return f; | |
| 96 } | |
| 97 | |
| 98 | |
| 99 // Do the semantic analysis on the external interface to the function. | |
| 100 | |
| 101 void FuncDeclaration::semantic(Scope *sc) | |
| 102 { TypeFunction *f; | |
| 103 StructDeclaration *sd; | |
| 104 ClassDeclaration *cd; | |
| 105 InterfaceDeclaration *id; | |
| 106 | |
| 107 #if 0 | |
| 108 printf("FuncDeclaration::semantic(sc = %p, this = %p, '%s', linkage = %d)\n", sc, this, toPrettyChars(), sc->linkage); | |
| 109 if (isFuncLiteralDeclaration()) | |
| 110 printf("\tFuncLiteralDeclaration()\n"); | |
| 111 printf("sc->parent = %s\n", sc->parent->toChars()); | |
| 112 printf("type: %s\n", type->toChars()); | |
| 113 #endif | |
| 114 | |
| 115 if (type->nextOf()) | |
| 116 type = type->semantic(loc, sc); | |
| 117 //type->print(); | |
| 118 if (type->ty != Tfunction) | |
| 119 { | |
| 120 error("%s must be a function", toChars()); | |
| 121 return; | |
| 122 } | |
| 123 f = (TypeFunction *)(type); | |
| 124 size_t nparams = Argument::dim(f->parameters); | |
| 125 | |
| 126 linkage = sc->linkage; | |
| 127 // if (!parent) | |
| 128 { | |
| 129 //parent = sc->scopesym; | |
| 130 parent = sc->parent; | |
| 131 } | |
| 132 protection = sc->protection; | |
| 133 storage_class |= sc->stc; | |
| 134 //printf("function storage_class = x%x\n", storage_class); | |
| 135 Dsymbol *parent = toParent(); | |
| 136 | |
| 137 if (isConst() || isAuto() || isScope()) | |
| 138 error("functions cannot be const or auto"); | |
| 139 | |
| 140 if (isAbstract() && !isVirtual()) | |
| 141 error("non-virtual functions cannot be abstract"); | |
| 142 #if 0 | |
| 143 if (isAbstract() && fbody) | |
| 144 error("abstract functions cannot have bodies"); | |
| 145 #endif | |
| 146 | |
| 147 #if 0 | |
| 148 if (isStaticConstructor() || isStaticDestructor()) | |
| 149 { | |
| 150 if (!isStatic() || type->nextOf()->ty != Tvoid) | |
| 151 error("static constructors / destructors must be static void"); | |
| 152 if (f->arguments && f->arguments->dim) | |
| 153 error("static constructors / destructors must have empty parameter list"); | |
| 154 // BUG: check for invalid storage classes | |
| 155 } | |
| 156 #endif | |
| 157 | |
| 158 #ifdef IN_GCC | |
| 159 AggregateDeclaration *ad; | |
| 160 | |
| 161 ad = parent->isAggregateDeclaration(); | |
| 162 if (ad) | |
| 163 ad->methods.push(this); | |
| 164 #endif | |
| 165 sd = parent->isStructDeclaration(); | |
| 166 if (sd) | |
| 167 { | |
| 168 // Verify no constructors, destructors, etc. | |
| 169 if (isCtorDeclaration() || | |
| 170 isDtorDeclaration() | |
| 171 //|| isInvariantDeclaration() | |
| 172 //|| isUnitTestDeclaration() | |
| 173 ) | |
| 174 { | |
| 175 error("special member functions not allowed for %ss", sd->kind()); | |
| 176 } | |
| 177 | |
| 178 #if 0 | |
| 179 if (!sd->inv) | |
| 180 sd->inv = isInvariantDeclaration(); | |
| 181 | |
| 182 if (!sd->aggNew) | |
| 183 sd->aggNew = isNewDeclaration(); | |
| 184 | |
| 185 if (isDelete()) | |
| 186 { | |
| 187 if (sd->aggDelete) | |
| 188 error("multiple delete's for struct %s", sd->toChars()); | |
| 189 sd->aggDelete = (DeleteDeclaration *)(this); | |
| 190 } | |
| 191 #endif | |
| 192 } | |
| 193 | |
| 194 id = parent->isInterfaceDeclaration(); | |
| 195 if (id) | |
| 196 { | |
| 197 storage_class |= STCabstract; | |
| 198 | |
| 199 if (isCtorDeclaration() || | |
| 200 isDtorDeclaration() || | |
| 201 isInvariantDeclaration() || | |
| 202 isUnitTestDeclaration() || isNewDeclaration() || isDelete()) | |
| 203 error("special function not allowed in interface %s", id->toChars()); | |
| 204 if (fbody) | |
| 205 error("function body is not abstract in interface %s", id->toChars()); | |
| 206 } | |
| 207 | |
| 208 cd = parent->isClassDeclaration(); | |
| 209 if (cd) | |
| 210 { int vi; | |
| 211 CtorDeclaration *ctor; | |
| 212 DtorDeclaration *dtor; | |
| 213 InvariantDeclaration *inv; | |
| 214 | |
| 215 if (isCtorDeclaration()) | |
| 216 { | |
| 217 // ctor = (CtorDeclaration *)this; | |
| 218 // if (!cd->ctor) | |
| 219 // cd->ctor = ctor; | |
| 220 return; | |
| 221 } | |
| 222 | |
| 223 #if 0 | |
| 224 dtor = isDtorDeclaration(); | |
| 225 if (dtor) | |
| 226 { | |
| 227 if (cd->dtor) | |
| 228 error("multiple destructors for class %s", cd->toChars()); | |
| 229 cd->dtor = dtor; | |
| 230 } | |
| 231 | |
| 232 inv = isInvariantDeclaration(); | |
| 233 if (inv) | |
| 234 { | |
| 235 cd->inv = inv; | |
| 236 } | |
| 237 | |
| 238 if (isNewDeclaration()) | |
| 239 { | |
| 240 if (!cd->aggNew) | |
| 241 cd->aggNew = (NewDeclaration *)(this); | |
| 242 } | |
| 243 | |
| 244 if (isDelete()) | |
| 245 { | |
| 246 if (cd->aggDelete) | |
| 247 error("multiple delete's for class %s", cd->toChars()); | |
| 248 cd->aggDelete = (DeleteDeclaration *)(this); | |
| 249 } | |
| 250 #endif | |
| 251 | |
| 252 if (storage_class & STCabstract) | |
| 253 cd->isabstract = 1; | |
| 254 | |
| 255 // if static function, do not put in vtbl[] | |
| 256 if (!isVirtual()) | |
| 257 { | |
| 258 //printf("\tnot virtual\n"); | |
| 19 | 259 goto Ldone; |
| 1 | 260 } |
| 261 | |
| 262 // Find index of existing function in vtbl[] to override | |
| 263 if (cd->baseClass) | |
| 264 { | |
| 265 for (vi = 0; vi < cd->baseClass->vtbl.dim; vi++) | |
| 266 { | |
| 267 FuncDeclaration *fdv = ((Dsymbol *)cd->vtbl.data[vi])->isFuncDeclaration(); | |
| 268 | |
| 269 // BUG: should give error if argument types match, | |
| 270 // but return type does not? | |
| 271 | |
| 272 //printf("\tvtbl[%d] = '%s'\n", vi, fdv ? fdv->ident->toChars() : ""); | |
| 273 if (fdv && fdv->ident == ident) | |
| 274 { | |
| 275 int cov = type->covariant(fdv->type); | |
| 276 //printf("\tbaseclass cov = %d\n", cov); | |
| 277 if (cov == 2) | |
| 278 { | |
| 279 //type->print(); | |
| 280 //fdv->type->print(); | |
| 281 //printf("%s %s\n", type->deco, fdv->type->deco); | |
| 282 error("of type %s overrides but is not covariant with %s of type %s", | |
| 283 type->toChars(), fdv->toPrettyChars(), fdv->type->toChars()); | |
| 284 } | |
| 285 if (cov == 1) | |
| 286 { | |
| 287 if (fdv->isFinal()) | |
| 288 error("cannot override final function %s", fdv->toPrettyChars()); | |
| 289 if (fdv->toParent() == parent) | |
| 290 { | |
| 291 // If both are mixins, then error. | |
| 292 // If either is not, the one that is not overrides | |
| 293 // the other. | |
| 294 if (fdv->parent->isClassDeclaration()) | |
| 295 goto L1; | |
| 296 if (!this->parent->isClassDeclaration() | |
| 297 #if !BREAKABI | |
| 298 && !isDtorDeclaration() | |
| 299 #endif | |
| 300 ) | |
| 301 error("multiple overrides of same function"); | |
| 302 } | |
| 303 cd->vtbl.data[vi] = (void *)this; | |
| 304 vtblIndex = vi; | |
| 305 | |
| 306 /* This works by whenever this function is called, | |
| 307 * it actually returns tintro, which gets dynamically | |
| 308 * cast to type. But we know that tintro is a base | |
| 309 * of type, so we could optimize it by not doing a | |
| 310 * dynamic cast, but just subtracting the isBaseOf() | |
| 311 * offset if the value is != null. | |
| 312 */ | |
| 313 | |
| 314 if (fdv->tintro) | |
| 315 tintro = fdv->tintro; | |
| 316 else if (!type->equals(fdv->type)) | |
| 317 { | |
| 318 /* Only need to have a tintro if the vptr | |
| 319 * offsets differ | |
| 320 */ | |
| 321 int offset; | |
| 322 if (fdv->type->nextOf()->isBaseOf(type->nextOf(), &offset)) | |
| 323 { | |
| 324 tintro = fdv->type; | |
| 325 } | |
| 326 } | |
| 327 goto L1; | |
| 328 } | |
| 329 if (cov == 3) | |
| 330 { | |
| 331 cd->sizeok = 2; // can't finish due to forward reference | |
| 332 return; | |
| 333 } | |
| 334 } | |
| 335 } | |
| 336 } | |
| 337 | |
| 338 // This is an 'introducing' function. | |
| 339 | |
| 340 // Verify this doesn't override previous final function | |
| 341 if (cd->baseClass) | |
| 342 { Dsymbol *s = cd->baseClass->search(loc, ident, 0); | |
| 343 if (s) | |
| 344 { | |
| 345 FuncDeclaration *f = s->isFuncDeclaration(); | |
| 346 f = f->overloadExactMatch(type); | |
| 347 if (f && f->isFinal() && f->prot() != PROTprivate) | |
| 348 error("cannot override final function %s", f->toPrettyChars()); | |
| 349 } | |
| 350 } | |
| 351 | |
| 352 if (isFinal()) | |
| 353 { | |
| 354 cd->vtblFinal.push(this); | |
| 355 } | |
| 356 else | |
| 357 { | |
| 358 // Append to end of vtbl[] | |
| 359 //printf("\tintroducing function\n"); | |
| 360 introducing = 1; | |
| 361 vi = cd->vtbl.dim; | |
| 362 cd->vtbl.push(this); | |
| 363 vtblIndex = vi; | |
| 364 } | |
| 365 | |
| 366 L1: ; | |
| 367 | |
| 368 /* Go through all the interface bases. | |
| 369 * If this function is covariant with any members of those interface | |
| 370 * functions, set the tintro. | |
| 371 */ | |
| 372 for (int i = 0; i < cd->interfaces_dim; i++) | |
| 373 { | |
| 374 BaseClass *b = cd->interfaces[i]; | |
| 375 for (vi = 0; vi < b->base->vtbl.dim; vi++) | |
| 376 { | |
| 377 Dsymbol *s = (Dsymbol *)b->base->vtbl.data[vi]; | |
| 378 //printf("interface %d vtbl[%d] %p %s\n", i, vi, s, s->toChars()); | |
| 379 FuncDeclaration *fdv = s->isFuncDeclaration(); | |
| 380 if (fdv && fdv->ident == ident) | |
| 381 { | |
| 382 int cov = type->covariant(fdv->type); | |
| 383 //printf("\tcov = %d\n", cov); | |
| 384 if (cov == 2) | |
| 385 { | |
| 386 //type->print(); | |
| 387 //fdv->type->print(); | |
| 388 //printf("%s %s\n", type->deco, fdv->type->deco); | |
| 389 error("of type %s overrides but is not covariant with %s of type %s", | |
| 390 type->toChars(), fdv->toPrettyChars(), fdv->type->toChars()); | |
| 391 } | |
| 392 if (cov == 1) | |
| 393 { Type *ti = NULL; | |
| 394 | |
| 395 if (fdv->tintro) | |
| 396 ti = 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 ti = fdv->type; | |
| 406 #if 0 | |
| 407 if (offset) | |
| 408 ti = fdv->type; | |
| 19 | 409 else if (type->nextOf()->ty == Tclass) |
| 410 { ClassDeclaration *cdn = ((TypeClass *)type->nextOf())->sym; | |
| 1 | 411 if (cdn && cdn->sizeok != 1) |
| 412 ti = fdv->type; | |
| 413 } | |
| 414 #endif | |
| 415 } | |
| 416 } | |
| 417 if (ti) | |
| 418 { | |
| 419 if (tintro && !tintro->equals(ti)) | |
| 420 { | |
| 421 error("incompatible covariant types %s and %s", tintro->toChars(), ti->toChars()); | |
| 422 } | |
| 423 tintro = ti; | |
| 424 } | |
| 425 goto L2; | |
| 426 } | |
| 427 if (cov == 3) | |
| 428 { | |
| 429 cd->sizeok = 2; // can't finish due to forward reference | |
| 430 return; | |
| 431 } | |
| 432 } | |
| 433 } | |
| 434 } | |
| 435 | |
| 436 if (introducing && isOverride()) | |
| 437 { | |
| 438 error("function %s does not override any", toChars()); | |
| 439 } | |
| 440 | |
| 441 L2: ; | |
| 442 } | |
| 443 else if (isOverride() && !parent->isTemplateInstance()) | |
| 444 error("override only applies to class member functions"); | |
| 445 | |
| 446 /* Do not allow template instances to add virtual functions | |
| 447 * to a class. | |
| 448 */ | |
| 449 if (isVirtual()) | |
| 450 { | |
| 451 TemplateInstance *ti = parent->isTemplateInstance(); | |
| 452 if (ti) | |
| 453 { | |
| 454 // Take care of nested templates | |
| 455 while (1) | |
| 456 { | |
| 457 TemplateInstance *ti2 = ti->tempdecl->parent->isTemplateInstance(); | |
| 458 if (!ti2) | |
| 459 break; | |
| 460 ti = ti2; | |
| 461 } | |
| 462 | |
| 463 // If it's a member template | |
| 464 ClassDeclaration *cd = ti->tempdecl->isClassMember(); | |
| 465 if (cd) | |
| 466 { | |
| 467 error("cannot use template to add virtual function to class '%s'", cd->toChars()); | |
| 468 } | |
| 469 } | |
| 470 } | |
| 471 | |
| 472 if (isMain()) | |
| 473 { | |
| 474 // Check parameters to see if they are either () or (char[][] args) | |
| 475 switch (nparams) | |
| 476 { | |
| 477 case 0: | |
| 478 break; | |
| 479 | |
| 480 case 1: | |
| 481 { | |
| 482 Argument *arg0 = Argument::getNth(f->parameters, 0); | |
| 483 if (arg0->type->ty != Tarray || | |
| 19 | 484 arg0->type->nextOf()->ty != Tarray || |
| 485 arg0->type->nextOf()->nextOf()->ty != Tchar || | |
| 1 | 486 arg0->storageClass & (STCout | STCref | STClazy)) |
| 487 goto Lmainerr; | |
| 488 break; | |
| 489 } | |
| 490 | |
| 491 default: | |
| 492 goto Lmainerr; | |
| 493 } | |
| 494 | |
| 495 if (f->nextOf()->ty != Tint32 && f->nextOf()->ty != Tvoid) | |
| 496 error("must return int or void, not %s", f->nextOf()->toChars()); | |
| 497 if (f->varargs) | |
| 498 { | |
| 499 Lmainerr: | |
| 500 error("parameters must be main() or main(char[][] args)"); | |
| 501 } | |
| 502 } | |
| 503 | |
| 504 if (ident == Id::assign && (sd || cd)) | |
| 505 { // Disallow identity assignment operator. | |
| 506 | |
| 507 // opAssign(...) | |
| 508 if (nparams == 0) | |
| 509 { if (f->varargs == 1) | |
| 510 goto Lassignerr; | |
| 511 } | |
| 512 else | |
| 513 { | |
| 514 Argument *arg0 = Argument::getNth(f->parameters, 0); | |
| 515 Type *t0 = arg0->type->toBasetype(); | |
| 516 Type *tb = sd ? sd->type : cd->type; | |
| 517 if (arg0->type->implicitConvTo(tb) || | |
| 518 (sd && t0->ty == Tpointer && t0->nextOf()->implicitConvTo(tb)) | |
| 519 ) | |
| 520 { | |
| 521 if (nparams == 1) | |
| 522 goto Lassignerr; | |
| 523 Argument *arg1 = Argument::getNth(f->parameters, 1); | |
| 524 if (arg1->defaultArg) | |
| 525 goto Lassignerr; | |
| 526 } | |
| 527 } | |
| 528 } | |
| 529 | |
| 19 | 530 Ldone: |
| 1 | 531 /* Save scope for possible later use (if we need the |
| 532 * function internals) | |
| 533 */ | |
| 534 scope = new Scope(*sc); | |
| 535 scope->setNoFree(); | |
| 536 return; | |
| 537 | |
| 538 Lassignerr: | |
| 539 error("identity assignment operator overload is illegal"); | |
| 540 } | |
| 541 | |
| 542 void FuncDeclaration::semantic2(Scope *sc) | |
| 543 { | |
| 544 } | |
| 545 | |
| 546 // Do the semantic analysis on the internals of the function. | |
| 547 | |
| 548 void FuncDeclaration::semantic3(Scope *sc) | |
| 549 { TypeFunction *f; | |
| 550 AggregateDeclaration *ad; | |
| 551 VarDeclaration *argptr = NULL; | |
| 552 VarDeclaration *_arguments = NULL; | |
| 553 | |
| 554 if (!parent) | |
| 555 { | |
| 556 printf("FuncDeclaration::semantic3(%s '%s', sc = %p)\n", kind(), toChars(), sc); | |
| 557 assert(0); | |
| 558 } | |
| 559 //printf("FuncDeclaration::semantic3('%s.%s', sc = %p)\n", parent->toChars(), toChars(), sc); | |
| 560 //fflush(stdout); | |
| 561 //{ static int x; if (++x == 2) *(char*)0=0; } | |
| 562 //printf("\tlinkage = %d\n", sc->linkage); | |
| 563 | |
| 564 //printf(" sc->incontract = %d\n", sc->incontract); | |
| 565 if (semanticRun) | |
| 566 return; | |
| 567 semanticRun = 1; | |
| 568 | |
| 569 if (!type || type->ty != Tfunction) | |
| 570 return; | |
| 571 f = (TypeFunction *)(type); | |
| 572 size_t nparams = Argument::dim(f->parameters); | |
| 573 | |
| 574 // Check the 'throws' clause | |
| 575 if (fthrows) | |
| 576 { int i; | |
| 577 | |
| 578 for (i = 0; i < fthrows->dim; i++) | |
| 579 { | |
| 580 Type *t = (Type *)fthrows->data[i]; | |
| 581 | |
| 582 t = t->semantic(loc, sc); | |
| 583 if (!t->isClassHandle()) | |
| 584 error("can only throw classes, not %s", t->toChars()); | |
| 585 } | |
| 586 } | |
| 587 | |
| 588 if (fbody || frequire) | |
| 589 { | |
| 590 // Establish function scope | |
| 591 ScopeDsymbol *ss; | |
| 592 Scope *sc2; | |
| 593 | |
| 594 localsymtab = new DsymbolTable(); | |
| 595 | |
| 596 ss = new ScopeDsymbol(); | |
| 597 ss->parent = sc->scopesym; | |
| 598 sc2 = sc->push(ss); | |
| 599 sc2->func = this; | |
| 600 sc2->parent = this; | |
| 601 sc2->callSuper = 0; | |
| 602 sc2->sbreak = NULL; | |
| 603 sc2->scontinue = NULL; | |
| 604 sc2->sw = NULL; | |
| 605 sc2->fes = fes; | |
| 606 sc2->linkage = LINKd; | |
| 607 sc2->stc &= ~(STCauto | STCscope | STCstatic | STCabstract | STCdeprecated); | |
| 608 sc2->protection = PROTpublic; | |
| 609 sc2->explicitProtection = 0; | |
| 610 sc2->structalign = 8; | |
| 611 sc2->incontract = 0; | |
| 612 sc2->tf = NULL; | |
| 613 sc2->noctor = 0; | |
| 614 | |
| 615 // Declare 'this' | |
| 616 ad = isThis(); | |
| 617 if (ad) | |
| 618 { VarDeclaration *v; | |
| 619 | |
| 620 if (isFuncLiteralDeclaration() && isNested()) | |
| 621 { | |
| 622 error("literals cannot be class members"); | |
| 623 return; | |
| 624 } | |
| 625 else | |
| 626 { | |
| 627 assert(!isNested()); // can't be both member and nested | |
| 628 assert(ad->handle); | |
| 629 v = new ThisDeclaration(ad->handle); | |
| 630 v->storage_class |= STCparameter | STCin; | |
| 631 v->semantic(sc2); | |
| 632 if (!sc2->insert(v)) | |
| 633 assert(0); | |
| 634 v->parent = this; | |
| 635 vthis = v; | |
| 636 } | |
| 637 } | |
| 638 else if (isNested()) | |
| 639 { | |
| 640 VarDeclaration *v; | |
| 641 | |
| 642 v = new ThisDeclaration(Type::tvoid->pointerTo()); | |
| 643 v->storage_class |= STCparameter | STCin; | |
| 644 v->semantic(sc2); | |
| 645 if (!sc2->insert(v)) | |
| 646 assert(0); | |
| 647 v->parent = this; | |
| 648 vthis = v; | |
| 649 } | |
| 650 | |
| 651 // Declare hidden variable _arguments[] and _argptr | |
| 652 if (f->varargs == 1) | |
| 653 { Type *t; | |
| 654 | |
| 655 if (f->linkage == LINKd) | |
| 656 { // Declare _arguments[] | |
| 657 #if BREAKABI | |
| 658 v_arguments = new VarDeclaration(0, Type::typeinfotypelist->type, Id::_arguments_typeinfo, NULL); | |
| 659 v_arguments->storage_class = STCparameter | STCin; | |
| 660 v_arguments->semantic(sc2); | |
| 661 sc2->insert(v_arguments); | |
| 662 v_arguments->parent = this; | |
| 663 | |
| 664 t = Type::typeinfo->type->arrayOf(); | |
| 665 _arguments = new VarDeclaration(0, t, Id::_arguments, NULL); | |
| 666 _arguments->semantic(sc2); | |
| 667 sc2->insert(_arguments); | |
| 668 _arguments->parent = this; | |
| 669 #else | |
| 670 t = Type::typeinfo->type->arrayOf(); | |
| 671 v_arguments = new VarDeclaration(0, t, Id::_arguments, NULL); | |
| 672 v_arguments->storage_class = STCparameter | STCin; | |
| 673 v_arguments->semantic(sc2); | |
| 674 sc2->insert(v_arguments); | |
| 675 v_arguments->parent = this; | |
| 676 #endif | |
| 677 } | |
| 678 if (f->linkage == LINKd || (parameters && parameters->dim)) | |
| 679 { // Declare _argptr | |
| 680 #if IN_GCC | |
| 681 t = d_gcc_builtin_va_list_d_type; | |
| 682 #else | |
| 683 t = Type::tvoid->pointerTo(); | |
| 684 #endif | |
| 685 argptr = new VarDeclaration(0, t, Id::_argptr, NULL); | |
| 686 argptr->semantic(sc2); | |
| 687 sc2->insert(argptr); | |
| 688 argptr->parent = this; | |
| 689 } | |
| 690 } | |
| 691 | |
| 692 // Propagate storage class from tuple arguments to their sub-arguments. | |
| 693 if (f->parameters) | |
| 694 { | |
| 695 for (size_t i = 0; i < f->parameters->dim; i++) | |
| 696 { Argument *arg = (Argument *)f->parameters->data[i]; | |
| 697 | |
| 698 if (arg->type->ty == Ttuple) | |
| 699 { TypeTuple *t = (TypeTuple *)arg->type; | |
| 700 size_t dim = Argument::dim(t->arguments); | |
| 701 for (size_t j = 0; j < dim; j++) | |
| 702 { Argument *narg = Argument::getNth(t->arguments, j); | |
| 703 narg->storageClass = arg->storageClass; | |
| 704 } | |
| 705 } | |
| 706 } | |
| 707 } | |
| 708 | |
| 709 // Declare all the function parameters as variables | |
| 710 if (nparams) | |
| 711 { // parameters[] has all the tuples removed, as the back end | |
| 712 // doesn't know about tuples | |
| 713 parameters = new Dsymbols(); | |
| 714 parameters->reserve(nparams); | |
| 715 for (size_t i = 0; i < nparams; i++) | |
| 716 { | |
| 717 Argument *arg = Argument::getNth(f->parameters, i); | |
| 718 Identifier *id = arg->ident; | |
| 719 if (!id) | |
| 720 { | |
| 721 //error("no identifier for parameter %d of %s", i + 1, toChars()); | |
| 722 OutBuffer buf; | |
| 723 buf.printf("_param_%zu", i); | |
| 724 char *name = (char *)buf.extractData(); | |
| 725 id = new Identifier(name, TOKidentifier); | |
| 726 arg->ident = id; | |
| 727 } | |
| 728 VarDeclaration *v = new VarDeclaration(0, arg->type, id, NULL); | |
| 729 //printf("declaring parameter %s of type %s\n", v->toChars(), v->type->toChars()); | |
| 730 v->storage_class |= STCparameter; | |
| 731 if (f->varargs == 2 && i + 1 == nparams) | |
| 732 v->storage_class |= STCvariadic; | |
| 733 v->storage_class |= arg->storageClass & (STCin | STCout | STCref | STClazy); | |
| 734 if (v->storage_class & STClazy) | |
| 735 v->storage_class |= STCin; | |
| 736 v->semantic(sc2); | |
| 737 if (!sc2->insert(v)) | |
| 738 error("parameter %s.%s is already defined", toChars(), v->toChars()); | |
| 739 else | |
| 740 parameters->push(v); | |
| 741 localsymtab->insert(v); | |
| 742 v->parent = this; | |
| 743 // for llvm d | |
| 744 arg->vardecl = v; | |
| 745 } | |
| 746 } | |
| 747 | |
| 748 // Declare the tuple symbols and put them in the symbol table, | |
| 749 // but not in parameters[]. | |
| 750 if (f->parameters) | |
| 751 { | |
| 752 for (size_t i = 0; i < f->parameters->dim; i++) | |
| 753 { Argument *arg = (Argument *)f->parameters->data[i]; | |
| 754 | |
| 755 if (!arg->ident) | |
| 756 continue; // never used, so ignore | |
| 757 if (arg->type->ty == Ttuple) | |
| 758 { TypeTuple *t = (TypeTuple *)arg->type; | |
| 759 size_t dim = Argument::dim(t->arguments); | |
| 760 Objects *exps = new Objects(); | |
| 761 exps->setDim(dim); | |
| 762 for (size_t j = 0; j < dim; j++) | |
| 763 { Argument *narg = Argument::getNth(t->arguments, j); | |
| 764 assert(narg->ident); | |
| 765 VarDeclaration *v = sc2->search(0, narg->ident, NULL)->isVarDeclaration(); | |
| 766 assert(v); | |
| 767 Expression *e = new VarExp(0, v); | |
| 768 exps->data[j] = (void *)e; | |
| 769 } | |
| 770 assert(arg->ident); | |
| 771 TupleDeclaration *v = new TupleDeclaration(0, arg->ident, exps); | |
| 772 //printf("declaring tuple %s\n", v->toChars()); | |
| 773 v->isexp = 1; | |
| 774 if (!sc2->insert(v)) | |
| 775 error("parameter %s.%s is already defined", toChars(), v->toChars()); | |
| 776 localsymtab->insert(v); | |
| 777 v->parent = this; | |
| 778 } | |
| 779 } | |
| 780 } | |
| 781 | |
| 782 sc2->incontract++; | |
| 783 | |
| 784 if (frequire) | |
| 785 { | |
| 786 // BUG: need to error if accessing out parameters | |
| 787 // BUG: need to treat parameters as const | |
| 788 // BUG: need to disallow returns and throws | |
| 789 // BUG: verify that all in and ref parameters are read | |
| 790 frequire = frequire->semantic(sc2); | |
| 791 labtab = NULL; // so body can't refer to labels | |
| 792 } | |
| 793 | |
| 794 if (fensure || addPostInvariant()) | |
| 795 { | |
| 796 ScopeDsymbol *sym; | |
| 797 | |
| 798 sym = new ScopeDsymbol(); | |
| 799 sym->parent = sc2->scopesym; | |
| 800 sc2 = sc2->push(sym); | |
| 801 | |
| 802 assert(type->nextOf()); | |
| 803 if (type->nextOf()->ty == Tvoid) | |
| 804 { | |
| 805 if (outId) | |
| 806 error("void functions have no result"); | |
| 807 } | |
| 808 else | |
| 809 { | |
| 810 if (!outId) | |
| 811 outId = Id::result; // provide a default | |
| 812 } | |
| 813 | |
| 814 if (outId) | |
| 815 { // Declare result variable | |
| 816 VarDeclaration *v; | |
| 817 Loc loc = this->loc; | |
| 818 | |
| 819 if (fensure) | |
| 820 loc = fensure->loc; | |
| 821 | |
| 822 v = new VarDeclaration(loc, type->nextOf(), outId, NULL); | |
| 823 v->noauto = 1; | |
| 824 sc2->incontract--; | |
| 825 v->semantic(sc2); | |
| 826 sc2->incontract++; | |
| 827 if (!sc2->insert(v)) | |
| 828 error("out result %s is already defined", v->toChars()); | |
| 829 v->parent = this; | |
| 830 vresult = v; | |
| 831 | |
| 832 // vresult gets initialized with the function return value | |
| 833 // in ReturnStatement::semantic() | |
| 834 } | |
| 835 | |
| 836 // BUG: need to treat parameters as const | |
| 837 // BUG: need to disallow returns and throws | |
| 838 if (fensure) | |
| 839 { fensure = fensure->semantic(sc2); | |
| 840 labtab = NULL; // so body can't refer to labels | |
| 841 } | |
| 842 | |
| 843 if (!global.params.useOut) | |
| 844 { fensure = NULL; // discard | |
| 845 vresult = NULL; | |
| 846 } | |
| 847 | |
| 848 // Postcondition invariant | |
| 849 if (addPostInvariant()) | |
| 850 { | |
| 851 Expression *e = NULL; | |
| 852 if (isCtorDeclaration()) | |
| 853 { | |
| 854 // Call invariant directly only if it exists | |
| 855 InvariantDeclaration *inv = ad->inv; | |
| 856 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 857 | |
| 858 while (!inv && cd) | |
| 859 { | |
| 860 cd = cd->baseClass; | |
| 861 if (!cd) | |
| 862 break; | |
| 863 inv = cd->inv; | |
| 864 } | |
| 865 if (inv) | |
| 866 { | |
| 867 e = new DsymbolExp(0, inv); | |
| 868 e = new CallExp(0, e); | |
| 869 e = e->semantic(sc2); | |
| 870 } | |
| 871 } | |
| 872 else | |
| 873 { // Call invariant virtually | |
| 874 ThisExp *v = new ThisExp(0); | |
| 875 v->type = vthis->type; | |
| 876 e = new AssertExp(0, v); | |
| 877 } | |
| 878 if (e) | |
| 879 { | |
| 880 ExpStatement *s = new ExpStatement(0, e); | |
| 881 if (fensure) | |
| 882 fensure = new CompoundStatement(0, s, fensure); | |
| 883 else | |
| 884 fensure = s; | |
| 885 } | |
| 886 } | |
| 887 | |
| 888 if (fensure) | |
| 889 { returnLabel = new LabelDsymbol(Id::returnLabel); | |
| 890 LabelStatement *ls = new LabelStatement(0, Id::returnLabel, fensure); | |
| 891 ls->isReturnLabel = 1; | |
| 892 returnLabel->statement = ls; | |
| 893 } | |
| 894 sc2 = sc2->pop(); | |
| 895 } | |
| 896 | |
| 897 sc2->incontract--; | |
| 898 | |
| 899 if (fbody) | |
| 900 { ClassDeclaration *cd = isClassMember(); | |
| 901 | |
| 902 if (isCtorDeclaration() && cd) | |
| 903 { | |
| 904 for (int i = 0; i < cd->fields.dim; i++) | |
| 905 { VarDeclaration *v = (VarDeclaration *)cd->fields.data[i]; | |
| 906 | |
| 907 v->ctorinit = 0; | |
| 908 } | |
| 909 } | |
| 910 | |
| 911 if (inferRetType || f->retStyle() != RETstack) | |
| 912 nrvo_can = 0; | |
| 913 | |
| 914 fbody = fbody->semantic(sc2); | |
| 915 | |
| 916 if (inferRetType) | |
| 917 { // If no return type inferred yet, then infer a void | |
| 918 if (!type->nextOf()) | |
| 919 { | |
| 920 type->next = Type::tvoid; | |
| 921 type = type->semantic(loc, sc); | |
| 922 } | |
| 923 f = (TypeFunction *)type; | |
| 924 } | |
| 925 | |
| 926 int offend = fbody ? fbody->fallOffEnd() : TRUE; | |
| 927 | |
| 928 if (isStaticCtorDeclaration()) | |
| 929 { /* It's a static constructor. Ensure that all | |
| 930 * ctor consts were initialized. | |
| 931 */ | |
| 932 | |
|
35
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933 Dsymbol *p = toParent(); |
|
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934 ScopeDsymbol *ad = p->isScopeDsymbol(); |
|
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935 if (!ad) |
|
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|
936 { |
|
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|
937 error("static constructor can only be member of struct/class/module, not %s %s", p->kind(), p->toChars()); |
|
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|
938 } |
|
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|
939 else |
|
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|
940 { |
|
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|
941 for (int i = 0; i < ad->members->dim; i++) |
|
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|
942 { Dsymbol *s = (Dsymbol *)ad->members->data[i]; |
|
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|
943 |
|
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944 s->checkCtorConstInit(); |
|
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|
945 } |
| 1 | 946 } |
| 947 } | |
| 948 | |
| 949 if (isCtorDeclaration() && cd) | |
| 950 { | |
| 951 //printf("callSuper = x%x\n", sc2->callSuper); | |
| 952 | |
| 953 // Verify that all the ctorinit fields got initialized | |
| 954 if (!(sc2->callSuper & CSXthis_ctor)) | |
| 955 { | |
| 956 for (int i = 0; i < cd->fields.dim; i++) | |
| 957 { VarDeclaration *v = (VarDeclaration *)cd->fields.data[i]; | |
| 958 | |
| 959 if (v->ctorinit == 0 && v->isCtorinit()) | |
| 960 error("missing initializer for const field %s", v->toChars()); | |
| 961 } | |
| 962 } | |
| 963 | |
| 964 if (!(sc2->callSuper & CSXany_ctor) && | |
| 965 cd->baseClass && cd->baseClass->ctor) | |
| 966 { | |
| 967 sc2->callSuper = 0; | |
| 968 | |
| 969 // Insert implicit super() at start of fbody | |
| 970 Expression *e1 = new SuperExp(0); | |
| 971 Expression *e = new CallExp(0, e1); | |
| 972 | |
| 973 unsigned errors = global.errors; | |
| 974 global.gag++; | |
| 975 e = e->semantic(sc2); | |
| 976 global.gag--; | |
| 977 if (errors != global.errors) | |
| 978 error("no match for implicit super() call in constructor"); | |
| 979 | |
| 980 Statement *s = new ExpStatement(0, e); | |
| 981 fbody = new CompoundStatement(0, s, fbody); | |
| 982 } | |
| 983 } | |
| 984 else if (fes) | |
| 985 { // For foreach(){} body, append a return 0; | |
| 986 Expression *e = new IntegerExp(0); | |
| 987 Statement *s = new ReturnStatement(0, e); | |
| 988 fbody = new CompoundStatement(0, fbody, s); | |
| 989 assert(!returnLabel); | |
| 990 } | |
| 991 else if (!hasReturnExp && type->nextOf()->ty != Tvoid) | |
| 992 error("expected to return a value of type %s", type->nextOf()->toChars()); | |
| 993 else if (!inlineAsm) | |
| 994 { | |
| 995 if (type->nextOf()->ty == Tvoid) | |
| 996 { | |
| 997 if (offend && isMain()) | |
| 998 { // Add a return 0; statement | |
| 999 Statement *s = new ReturnStatement(0, new IntegerExp(0)); | |
| 1000 fbody = new CompoundStatement(0, fbody, s); | |
| 1001 } | |
| 1002 } | |
| 1003 else | |
| 1004 { | |
| 1005 if (offend) | |
| 1006 { Expression *e; | |
| 1007 | |
| 1008 if (global.params.warnings) | |
| 1009 { fprintf(stdmsg, "warning - "); | |
| 1010 error("no return at end of function"); | |
| 1011 } | |
| 1012 | |
| 1013 if (global.params.useAssert && | |
| 1014 !global.params.useInline) | |
| 1015 { /* Add an assert(0, msg); where the missing return | |
| 1016 * should be. | |
| 1017 */ | |
| 1018 e = new AssertExp( | |
| 1019 endloc, | |
| 1020 new IntegerExp(0), | |
| 1021 new StringExp(loc, "missing return expression") | |
| 1022 ); | |
| 1023 } | |
| 1024 else | |
| 1025 e = new HaltExp(endloc); | |
| 1026 e = new CommaExp(0, e, type->nextOf()->defaultInit()); | |
| 1027 e = e->semantic(sc2); | |
| 1028 Statement *s = new ExpStatement(0, e); | |
| 1029 fbody = new CompoundStatement(0, fbody, s); | |
| 1030 } | |
| 1031 } | |
| 1032 } | |
| 1033 } | |
| 1034 | |
| 1035 { | |
| 1036 Statements *a = new Statements(); | |
| 1037 | |
| 1038 // Merge in initialization of 'out' parameters | |
| 1039 if (parameters) | |
| 1040 { for (size_t i = 0; i < parameters->dim; i++) | |
| 1041 { VarDeclaration *v; | |
| 1042 | |
| 1043 v = (VarDeclaration *)parameters->data[i]; | |
| 1044 if (v->storage_class & STCout) | |
| 1045 { | |
| 1046 assert(v->init); | |
| 1047 ExpInitializer *ie = v->init->isExpInitializer(); | |
| 1048 assert(ie); | |
| 1049 a->push(new ExpStatement(0, ie->exp)); | |
| 1050 } | |
| 1051 } | |
| 1052 } | |
| 1053 | |
| 1054 if (argptr) | |
| 1055 { // Initialize _argptr to point past non-variadic arg | |
| 1056 #if IN_GCC | |
| 1057 // Handled in FuncDeclaration::toObjFile | |
| 1058 v_argptr = argptr; | |
| 1059 v_argptr->init = new VoidInitializer(loc); | |
| 1060 #else | |
| 1061 Expression *e1; | |
| 1062 Expression *e; | |
| 1063 Type *t = argptr->type; | |
| 1064 VarDeclaration *p; | |
| 1065 unsigned offset; | |
| 1066 | |
| 1067 e1 = new VarExp(0, argptr); | |
| 1068 if (parameters && parameters->dim) | |
| 1069 p = (VarDeclaration *)parameters->data[parameters->dim - 1]; | |
| 1070 else | |
| 1071 p = v_arguments; // last parameter is _arguments[] | |
| 1072 offset = p->type->size(); | |
| 1073 offset = (offset + 3) & ~3; // assume stack aligns on 4 | |
| 1074 e = new SymOffExp(0, p, offset); | |
| 1075 e = new AssignExp(0, e1, e); | |
| 1076 e->type = t; | |
| 1077 a->push(new ExpStatement(0, e)); | |
| 1078 #endif | |
| 1079 } | |
| 1080 | |
| 1081 if (_arguments) | |
| 1082 { | |
| 1083 /* Advance to elements[] member of TypeInfo_Tuple with: | |
| 1084 * _arguments = v_arguments.elements; | |
| 1085 */ | |
| 1086 Expression *e = new VarExp(0, v_arguments); | |
| 1087 e = new DotIdExp(0, e, Id::elements); | |
| 1088 Expression *e1 = new VarExp(0, _arguments); | |
| 1089 e = new AssignExp(0, e1, e); | |
| 1090 e = e->semantic(sc); | |
| 1091 a->push(new ExpStatement(0, e)); | |
| 1092 } | |
| 1093 | |
| 1094 // Merge contracts together with body into one compound statement | |
| 1095 | |
| 1096 #ifdef _DH | |
| 1097 if (frequire && global.params.useIn) | |
| 1098 { frequire->incontract = 1; | |
| 1099 a->push(frequire); | |
| 1100 } | |
| 1101 #else | |
| 1102 if (frequire && global.params.useIn) | |
| 1103 a->push(frequire); | |
| 1104 #endif | |
| 1105 | |
| 1106 // Precondition invariant | |
| 1107 if (addPreInvariant()) | |
| 1108 { | |
| 1109 Expression *e = NULL; | |
| 1110 if (isDtorDeclaration()) | |
| 1111 { | |
| 1112 // Call invariant directly only if it exists | |
| 1113 InvariantDeclaration *inv = ad->inv; | |
| 1114 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 1115 | |
| 1116 while (!inv && cd) | |
| 1117 { | |
| 1118 cd = cd->baseClass; | |
| 1119 if (!cd) | |
| 1120 break; | |
| 1121 inv = cd->inv; | |
| 1122 } | |
| 1123 if (inv) | |
| 1124 { | |
| 1125 e = new DsymbolExp(0, inv); | |
| 1126 e = new CallExp(0, e); | |
| 1127 e = e->semantic(sc2); | |
| 1128 } | |
| 1129 } | |
| 1130 else | |
| 1131 { // Call invariant virtually | |
| 1132 ThisExp *v = new ThisExp(0); | |
| 1133 v->type = vthis->type; | |
| 1134 Expression *se = new StringExp(0, "null this"); | |
| 1135 se = se->semantic(sc); | |
| 1136 se->type = Type::tchar->arrayOf(); | |
| 1137 e = new AssertExp(loc, v, se); | |
| 1138 } | |
| 1139 if (e) | |
| 1140 { | |
| 1141 ExpStatement *s = new ExpStatement(0, e); | |
| 1142 a->push(s); | |
| 1143 } | |
| 1144 } | |
| 1145 | |
| 1146 if (fbody) | |
| 1147 a->push(fbody); | |
| 1148 | |
| 1149 if (fensure) | |
| 1150 { | |
| 1151 a->push(returnLabel->statement); | |
| 1152 | |
| 1153 if (type->nextOf()->ty != Tvoid) | |
| 1154 { | |
| 1155 // Create: return vresult; | |
| 1156 assert(vresult); | |
| 1157 Expression *e = new VarExp(0, vresult); | |
| 1158 if (tintro) | |
| 1159 { e = e->implicitCastTo(sc, tintro->nextOf()); | |
| 1160 e = e->semantic(sc); | |
| 1161 } | |
| 1162 ReturnStatement *s = new ReturnStatement(0, e); | |
| 1163 a->push(s); | |
| 1164 } | |
| 1165 } | |
| 1166 | |
| 1167 fbody = new CompoundStatement(0, a); | |
| 1168 } | |
| 1169 | |
| 1170 sc2->callSuper = 0; | |
| 1171 sc2->pop(); | |
| 1172 } | |
| 1173 semanticRun = 2; | |
| 1174 } | |
| 1175 | |
| 1176 void FuncDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1177 { | |
| 1178 //printf("FuncDeclaration::toCBuffer() '%s'\n", toChars()); | |
| 1179 | |
| 1180 type->toCBuffer(buf, ident, hgs); | |
| 1181 bodyToCBuffer(buf, hgs); | |
| 1182 } | |
| 1183 | |
| 1184 | |
| 1185 void FuncDeclaration::bodyToCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1186 { | |
| 1187 if (fbody && | |
| 1188 (!hgs->hdrgen || hgs->tpltMember || canInline(1,1)) | |
| 1189 ) | |
| 1190 { buf->writenl(); | |
| 1191 | |
| 1192 // in{} | |
| 1193 if (frequire) | |
| 1194 { buf->writestring("in"); | |
| 1195 buf->writenl(); | |
| 1196 frequire->toCBuffer(buf, hgs); | |
| 1197 } | |
| 1198 | |
| 1199 // out{} | |
| 1200 if (fensure) | |
| 1201 { buf->writestring("out"); | |
| 1202 if (outId) | |
| 1203 { buf->writebyte('('); | |
| 1204 buf->writestring(outId->toChars()); | |
| 1205 buf->writebyte(')'); | |
| 1206 } | |
| 1207 buf->writenl(); | |
| 1208 fensure->toCBuffer(buf, hgs); | |
| 1209 } | |
| 1210 | |
| 1211 if (frequire || fensure) | |
| 1212 { buf->writestring("body"); | |
| 1213 buf->writenl(); | |
| 1214 } | |
| 1215 | |
| 1216 buf->writebyte('{'); | |
| 1217 buf->writenl(); | |
| 1218 fbody->toCBuffer(buf, hgs); | |
| 1219 buf->writebyte('}'); | |
| 1220 buf->writenl(); | |
| 1221 } | |
| 1222 else | |
| 1223 { buf->writeByte(';'); | |
| 1224 buf->writenl(); | |
| 1225 } | |
| 1226 } | |
| 1227 | |
| 1228 /**************************************************** | |
| 1229 * Determine if 'this' overrides fd. | |
| 1230 * Return !=0 if it does. | |
| 1231 */ | |
| 1232 | |
| 1233 int FuncDeclaration::overrides(FuncDeclaration *fd) | |
| 1234 { int result = 0; | |
| 1235 | |
| 1236 if (fd->ident == ident) | |
| 1237 { | |
| 1238 int cov = type->covariant(fd->type); | |
| 1239 if (cov) | |
| 1240 { ClassDeclaration *cd1 = toParent()->isClassDeclaration(); | |
| 1241 ClassDeclaration *cd2 = fd->toParent()->isClassDeclaration(); | |
| 1242 | |
| 1243 if (cd1 && cd2 && cd2->isBaseOf(cd1, NULL)) | |
| 1244 result = 1; | |
| 1245 } | |
| 1246 } | |
| 1247 return result; | |
| 1248 } | |
| 1249 | |
| 1250 /**************************************************** | |
| 1251 * Overload this FuncDeclaration with the new one f. | |
| 1252 * Return !=0 if successful; i.e. no conflict. | |
| 1253 */ | |
| 1254 | |
| 1255 int FuncDeclaration::overloadInsert(Dsymbol *s) | |
| 1256 { | |
| 1257 FuncDeclaration *f; | |
| 1258 AliasDeclaration *a; | |
| 1259 | |
| 1260 //printf("FuncDeclaration::overloadInsert(%s)\n", s->toChars()); | |
| 1261 a = s->isAliasDeclaration(); | |
| 1262 if (a) | |
| 1263 { | |
| 1264 if (overnext) | |
| 1265 return overnext->overloadInsert(a); | |
| 1266 if (!a->aliassym && a->type->ty != Tident && a->type->ty != Tinstance) | |
| 1267 { | |
| 1268 //printf("\ta = '%s'\n", a->type->toChars()); | |
| 1269 return FALSE; | |
| 1270 } | |
| 1271 overnext = a; | |
| 1272 //printf("\ttrue: no conflict\n"); | |
| 1273 return TRUE; | |
| 1274 } | |
| 1275 f = s->isFuncDeclaration(); | |
| 1276 if (!f) | |
| 1277 return FALSE; | |
| 1278 | |
| 1279 if (type && f->type && // can be NULL for overloaded constructors | |
| 1280 f->type->covariant(type) && | |
| 1281 !isFuncAliasDeclaration()) | |
| 1282 { | |
| 1283 //printf("\tfalse: conflict %s\n", kind()); | |
| 1284 return FALSE; | |
| 1285 } | |
| 1286 | |
| 1287 if (overnext) | |
| 1288 return overnext->overloadInsert(f); | |
| 1289 overnext = f; | |
| 1290 //printf("\ttrue: no conflict\n"); | |
| 1291 return TRUE; | |
| 1292 } | |
| 1293 | |
| 1294 /******************************************** | |
| 1295 * Find function in overload list that exactly matches t. | |
| 1296 */ | |
| 1297 | |
| 1298 /*************************************************** | |
| 1299 * Visit each overloaded function in turn, and call | |
| 1300 * (*fp)(param, f) on it. | |
| 1301 * Exit when no more, or (*fp)(param, f) returns 1. | |
| 1302 * Returns: | |
| 1303 * 0 continue | |
| 1304 * 1 done | |
| 1305 */ | |
| 1306 | |
| 1307 int overloadApply(FuncDeclaration *fstart, | |
| 1308 int (*fp)(void *, FuncDeclaration *), | |
| 1309 void *param) | |
| 1310 { | |
| 1311 FuncDeclaration *f; | |
| 1312 Declaration *d; | |
| 1313 Declaration *next; | |
| 1314 | |
| 1315 for (d = fstart; d; d = next) | |
| 1316 { FuncAliasDeclaration *fa = d->isFuncAliasDeclaration(); | |
| 1317 | |
| 1318 if (fa) | |
| 1319 { | |
| 1320 if (overloadApply(fa->funcalias, fp, param)) | |
| 1321 return 1; | |
| 1322 next = fa->overnext; | |
| 1323 } | |
| 1324 else | |
| 1325 { | |
| 1326 AliasDeclaration *a = d->isAliasDeclaration(); | |
| 1327 | |
| 1328 if (a) | |
| 1329 { | |
| 1330 Dsymbol *s = a->toAlias(); | |
| 1331 next = s->isDeclaration(); | |
| 1332 if (next == a) | |
| 1333 break; | |
| 1334 if (next == fstart) | |
| 1335 break; | |
| 1336 } | |
| 1337 else | |
| 1338 { | |
| 1339 f = d->isFuncDeclaration(); | |
| 1340 if (!f) | |
| 1341 { d->error("is aliased to a function"); | |
| 1342 break; // BUG: should print error message? | |
| 1343 } | |
| 1344 if ((*fp)(param, f)) | |
| 1345 return 1; | |
| 1346 | |
| 1347 next = f->overnext; | |
| 1348 } | |
| 1349 } | |
| 1350 } | |
| 1351 return 0; | |
| 1352 } | |
| 1353 | |
| 1354 /******************************************** | |
| 1355 * Find function in overload list that exactly matches t. | |
| 1356 */ | |
| 1357 | |
| 1358 struct Param1 | |
| 1359 { | |
| 1360 Type *t; // type to match | |
| 1361 FuncDeclaration *f; // return value | |
| 1362 }; | |
| 1363 | |
| 1364 int fp1(void *param, FuncDeclaration *f) | |
| 1365 { Param1 *p = (Param1 *)param; | |
| 1366 Type *t = p->t; | |
| 1367 | |
| 1368 if (t->equals(f->type)) | |
| 1369 { p->f = f; | |
| 1370 return 1; | |
| 1371 } | |
| 1372 | |
| 1373 #if V2 | |
| 1374 /* Allow covariant matches, if it's just a const conversion | |
| 1375 * of the return type | |
| 1376 */ | |
| 1377 if (t->ty == Tfunction) | |
| 1378 { TypeFunction *tf = (TypeFunction *)f->type; | |
| 1379 if (tf->covariant(t) == 1 && | |
| 1380 tf->nextOf()->implicitConvTo(t->nextOf()) >= MATCHconst) | |
| 1381 { | |
| 1382 p->f = f; | |
| 1383 return 1; | |
| 1384 } | |
| 1385 } | |
| 1386 #endif | |
| 1387 return 0; | |
| 1388 } | |
| 1389 | |
| 1390 FuncDeclaration *FuncDeclaration::overloadExactMatch(Type *t) | |
| 1391 { | |
| 1392 Param1 p; | |
| 1393 p.t = t; | |
| 1394 p.f = NULL; | |
| 1395 overloadApply(this, &fp1, &p); | |
| 1396 return p.f; | |
| 1397 } | |
| 1398 | |
| 1399 #if 0 | |
| 1400 FuncDeclaration *FuncDeclaration::overloadExactMatch(Type *t) | |
| 1401 { | |
| 1402 FuncDeclaration *f; | |
| 1403 Declaration *d; | |
| 1404 Declaration *next; | |
| 1405 | |
| 1406 for (d = this; d; d = next) | |
| 1407 { FuncAliasDeclaration *fa = d->isFuncAliasDeclaration(); | |
| 1408 | |
| 1409 if (fa) | |
| 1410 { | |
| 1411 FuncDeclaration *f2 = fa->funcalias->overloadExactMatch(t); | |
| 1412 if (f2) | |
| 1413 return f2; | |
| 1414 next = fa->overnext; | |
| 1415 } | |
| 1416 else | |
| 1417 { | |
| 1418 AliasDeclaration *a = d->isAliasDeclaration(); | |
| 1419 | |
| 1420 if (a) | |
| 1421 { | |
| 1422 Dsymbol *s = a->toAlias(); | |
| 1423 next = s->isDeclaration(); | |
| 1424 if (next == a) | |
| 1425 break; | |
| 1426 } | |
| 1427 else | |
| 1428 { | |
| 1429 f = d->isFuncDeclaration(); | |
| 1430 if (!f) | |
| 1431 break; // BUG: should print error message? | |
| 1432 if (t->equals(d->type)) | |
| 1433 return f; | |
| 1434 next = f->overnext; | |
| 1435 } | |
| 1436 } | |
| 1437 } | |
| 1438 return NULL; | |
| 1439 } | |
| 1440 #endif | |
| 1441 | |
| 1442 /******************************************** | |
| 1443 * Decide which function matches the arguments best. | |
| 1444 */ | |
| 1445 | |
| 1446 struct Param2 | |
| 1447 { | |
| 1448 Match *m; | |
| 1449 Expressions *arguments; | |
| 1450 }; | |
| 1451 | |
| 1452 int fp2(void *param, FuncDeclaration *f) | |
| 1453 { Param2 *p = (Param2 *)param; | |
| 1454 Match *m = p->m; | |
| 1455 Expressions *arguments = p->arguments; | |
| 1456 MATCH match; | |
| 1457 | |
| 1458 if (f != m->lastf) // skip duplicates | |
| 1459 { | |
| 1460 TypeFunction *tf; | |
| 1461 | |
| 1462 m->anyf = f; | |
| 1463 tf = (TypeFunction *)f->type; | |
| 1464 match = (MATCH) tf->callMatch(arguments); | |
| 1465 //printf("match = %d\n", match); | |
| 1466 if (match != MATCHnomatch) | |
| 1467 { | |
| 1468 if (match > m->last) | |
| 1469 goto LfIsBetter; | |
| 1470 | |
| 1471 if (match < m->last) | |
| 1472 goto LlastIsBetter; | |
| 1473 | |
| 1474 /* See if one of the matches overrides the other. | |
| 1475 */ | |
| 1476 if (m->lastf->overrides(f)) | |
| 1477 goto LlastIsBetter; | |
| 1478 else if (f->overrides(m->lastf)) | |
| 1479 goto LfIsBetter; | |
| 1480 | |
| 1481 Lambiguous: | |
| 1482 m->nextf = f; | |
| 1483 m->count++; | |
| 1484 return 0; | |
| 1485 | |
| 1486 LfIsBetter: | |
| 1487 m->last = match; | |
| 1488 m->lastf = f; | |
| 1489 m->count = 1; | |
| 1490 return 0; | |
| 1491 | |
| 1492 LlastIsBetter: | |
| 1493 return 0; | |
| 1494 } | |
| 1495 } | |
| 1496 return 0; | |
| 1497 } | |
| 1498 | |
| 1499 | |
| 1500 void overloadResolveX(Match *m, FuncDeclaration *fstart, Expressions *arguments) | |
| 1501 { | |
| 1502 Param2 p; | |
| 1503 p.m = m; | |
| 1504 p.arguments = arguments; | |
| 1505 overloadApply(fstart, &fp2, &p); | |
| 1506 } | |
| 1507 | |
| 1508 #if 0 | |
| 1509 // Recursive helper function | |
| 1510 | |
| 1511 void overloadResolveX(Match *m, FuncDeclaration *fstart, Expressions *arguments) | |
| 1512 { | |
| 1513 MATCH match; | |
| 1514 Declaration *d; | |
| 1515 Declaration *next; | |
| 1516 | |
| 1517 for (d = fstart; d; d = next) | |
| 1518 { | |
| 1519 FuncDeclaration *f; | |
| 1520 FuncAliasDeclaration *fa; | |
| 1521 AliasDeclaration *a; | |
| 1522 | |
| 1523 fa = d->isFuncAliasDeclaration(); | |
| 1524 if (fa) | |
| 1525 { | |
| 1526 overloadResolveX(m, fa->funcalias, arguments); | |
| 1527 next = fa->overnext; | |
| 1528 } | |
| 1529 else if ((f = d->isFuncDeclaration()) != NULL) | |
| 1530 { | |
| 1531 next = f->overnext; | |
| 1532 if (f == m->lastf) | |
| 1533 continue; // skip duplicates | |
| 1534 else | |
| 1535 { | |
| 1536 TypeFunction *tf; | |
| 1537 | |
| 1538 m->anyf = f; | |
| 1539 tf = (TypeFunction *)f->type; | |
| 1540 match = (MATCH) tf->callMatch(arguments); | |
| 1541 //printf("match = %d\n", match); | |
| 1542 if (match != MATCHnomatch) | |
| 1543 { | |
| 1544 if (match > m->last) | |
| 1545 goto LfIsBetter; | |
| 1546 | |
| 1547 if (match < m->last) | |
| 1548 goto LlastIsBetter; | |
| 1549 | |
| 1550 /* See if one of the matches overrides the other. | |
| 1551 */ | |
| 1552 if (m->lastf->overrides(f)) | |
| 1553 goto LlastIsBetter; | |
| 1554 else if (f->overrides(m->lastf)) | |
| 1555 goto LfIsBetter; | |
| 1556 | |
| 1557 Lambiguous: | |
| 1558 m->nextf = f; | |
| 1559 m->count++; | |
| 1560 continue; | |
| 1561 | |
| 1562 LfIsBetter: | |
| 1563 m->last = match; | |
| 1564 m->lastf = f; | |
| 1565 m->count = 1; | |
| 1566 continue; | |
| 1567 | |
| 1568 LlastIsBetter: | |
| 1569 continue; | |
| 1570 } | |
| 1571 } | |
| 1572 } | |
| 1573 else if ((a = d->isAliasDeclaration()) != NULL) | |
| 1574 { | |
| 1575 Dsymbol *s = a->toAlias(); | |
| 1576 next = s->isDeclaration(); | |
| 1577 if (next == a) | |
| 1578 break; | |
| 1579 if (next == fstart) | |
| 1580 break; | |
| 1581 } | |
| 1582 else | |
| 1583 { d->error("is aliased to a function"); | |
| 1584 break; | |
| 1585 } | |
| 1586 } | |
| 1587 } | |
| 1588 #endif | |
| 1589 | |
| 1590 FuncDeclaration *FuncDeclaration::overloadResolve(Loc loc, Expressions *arguments) | |
| 1591 { | |
| 1592 TypeFunction *tf; | |
| 1593 Match m; | |
| 1594 | |
| 1595 #if 0 | |
| 1596 printf("FuncDeclaration::overloadResolve('%s')\n", toChars()); | |
| 1597 if (arguments) | |
| 1598 { int i; | |
| 1599 | |
| 1600 for (i = 0; i < arguments->dim; i++) | |
| 1601 { Expression *arg; | |
| 1602 | |
| 1603 arg = (Expression *)arguments->data[i]; | |
| 1604 assert(arg->type); | |
| 1605 printf("\t%s: ", arg->toChars()); | |
| 1606 arg->type->print(); | |
| 1607 } | |
| 1608 } | |
| 1609 #endif | |
| 1610 | |
| 1611 memset(&m, 0, sizeof(m)); | |
| 1612 m.last = MATCHnomatch; | |
| 1613 overloadResolveX(&m, this, arguments); | |
| 1614 | |
| 1615 if (m.count == 1) // exactly one match | |
| 1616 { | |
| 1617 return m.lastf; | |
| 1618 } | |
| 1619 else | |
| 1620 { | |
| 1621 OutBuffer buf; | |
| 1622 | |
| 1623 if (arguments) | |
| 1624 { | |
| 1625 HdrGenState hgs; | |
| 1626 | |
| 1627 argExpTypesToCBuffer(&buf, arguments, &hgs); | |
| 1628 } | |
| 1629 | |
| 1630 if (m.last == MATCHnomatch) | |
| 1631 { | |
| 1632 tf = (TypeFunction *)type; | |
| 1633 | |
| 1634 //printf("tf = %s, args = %s\n", tf->deco, ((Expression *)arguments->data[0])->type->deco); | |
| 1635 error(loc, "%s does not match parameter types (%s)", | |
| 1636 Argument::argsTypesToChars(tf->parameters, tf->varargs), | |
| 1637 buf.toChars()); | |
| 1638 return m.anyf; // as long as it's not a FuncAliasDeclaration | |
| 1639 } | |
| 1640 else | |
| 1641 { | |
| 1642 #if 1 | |
| 1643 TypeFunction *t1 = (TypeFunction *)m.lastf->type; | |
| 1644 TypeFunction *t2 = (TypeFunction *)m.nextf->type; | |
| 1645 | |
| 1646 error(loc, "called with argument types:\n\t(%s)\nmatches both:\n\t%s%s\nand:\n\t%s%s", | |
| 1647 buf.toChars(), | |
| 1648 m.lastf->toPrettyChars(), Argument::argsTypesToChars(t1->parameters, t1->varargs), | |
| 1649 m.nextf->toPrettyChars(), Argument::argsTypesToChars(t2->parameters, t2->varargs)); | |
| 1650 #else | |
| 1651 error(loc, "overloads %s and %s both match argument list for %s", | |
| 1652 m.lastf->type->toChars(), | |
| 1653 m.nextf->type->toChars(), | |
| 1654 m.lastf->toChars()); | |
| 1655 #endif | |
| 1656 return m.lastf; | |
| 1657 } | |
| 1658 } | |
| 1659 } | |
| 1660 | |
| 1661 /******************************** | |
| 1662 * Labels are in a separate scope, one per function. | |
| 1663 */ | |
| 1664 | |
| 1665 LabelDsymbol *FuncDeclaration::searchLabel(Identifier *ident) | |
| 1666 { Dsymbol *s; | |
| 1667 | |
| 1668 if (!labtab) | |
| 1669 labtab = new DsymbolTable(); // guess we need one | |
| 1670 | |
| 1671 s = labtab->lookup(ident); | |
| 1672 if (!s) | |
| 1673 { | |
| 1674 s = new LabelDsymbol(ident); | |
| 1675 labtab->insert(s); | |
| 1676 } | |
| 1677 return (LabelDsymbol *)s; | |
| 1678 } | |
| 1679 | |
| 1680 AggregateDeclaration *FuncDeclaration::isThis() | |
| 1681 { AggregateDeclaration *ad; | |
| 1682 | |
| 1683 //printf("+FuncDeclaration::isThis() '%s'\n", toChars()); | |
| 1684 ad = NULL; | |
| 1685 if ((storage_class & STCstatic) == 0) | |
| 1686 { | |
| 1687 ad = isMember2(); | |
| 1688 } | |
| 1689 //printf("-FuncDeclaration::isThis() %p\n", ad); | |
| 1690 return ad; | |
| 1691 } | |
| 1692 | |
| 1693 AggregateDeclaration *FuncDeclaration::isMember2() | |
| 1694 { AggregateDeclaration *ad; | |
| 1695 | |
| 1696 //printf("+FuncDeclaration::isMember2() '%s'\n", toChars()); | |
| 1697 ad = NULL; | |
| 1698 for (Dsymbol *s = this; s; s = s->parent) | |
| 1699 { | |
| 1700 //printf("\ts = '%s', parent = '%s', kind = %s\n", s->toChars(), s->parent->toChars(), s->parent->kind()); | |
| 1701 ad = s->isMember(); | |
| 1702 if (ad) | |
| 1703 { //printf("test4\n"); | |
| 1704 break; | |
| 1705 } | |
| 1706 if (!s->parent || | |
| 1707 (!s->parent->isTemplateInstance())) | |
| 1708 { //printf("test5\n"); | |
| 1709 break; | |
| 1710 } | |
| 1711 } | |
| 1712 //printf("-FuncDeclaration::isMember2() %p\n", ad); | |
| 1713 return ad; | |
| 1714 } | |
| 1715 | |
| 1716 /***************************************** | |
| 1717 * Determine lexical level difference from 'this' to nested function 'fd'. | |
| 1718 * Error if this cannot call fd. | |
| 1719 * Returns: | |
| 1720 * 0 same level | |
| 1721 * -1 increase nesting by 1 (fd is nested within 'this') | |
| 1722 * >0 decrease nesting by number | |
| 1723 */ | |
| 1724 | |
| 1725 int FuncDeclaration::getLevel(Loc loc, FuncDeclaration *fd) | |
| 1726 { int level; | |
| 1727 Dsymbol *s; | |
| 1728 Dsymbol *fdparent; | |
| 1729 | |
| 1730 //printf("FuncDeclaration::getLevel(fd = '%s')\n", fd->toChars()); | |
| 1731 fdparent = fd->toParent2(); | |
| 1732 if (fdparent == this) | |
| 1733 return -1; | |
| 1734 s = this; | |
| 1735 level = 0; | |
| 1736 while (fd != s && fdparent != s->toParent2()) | |
| 1737 { | |
| 1738 //printf("\ts = '%s'\n", s->toChars()); | |
| 1739 FuncDeclaration *thisfd = s->isFuncDeclaration(); | |
| 1740 if (thisfd) | |
| 1741 { if (!thisfd->isNested() && !thisfd->vthis) | |
| 1742 goto Lerr; | |
| 1743 } | |
| 1744 else | |
| 1745 { | |
| 1746 ClassDeclaration *thiscd = s->isClassDeclaration(); | |
| 1747 if (thiscd) | |
| 1748 { if (!thiscd->isNested()) | |
| 1749 goto Lerr; | |
| 1750 } | |
| 1751 else | |
| 1752 goto Lerr; | |
| 1753 } | |
| 1754 | |
| 1755 s = s->toParent2(); | |
| 1756 assert(s); | |
| 1757 level++; | |
| 1758 } | |
| 1759 return level; | |
| 1760 | |
| 1761 Lerr: | |
| 1762 error(loc, "cannot access frame of function %s", fd->toChars()); | |
| 1763 return 1; | |
| 1764 } | |
| 1765 | |
| 1766 void FuncDeclaration::appendExp(Expression *e) | |
| 1767 { Statement *s; | |
| 1768 | |
| 1769 s = new ExpStatement(0, e); | |
| 1770 appendState(s); | |
| 1771 } | |
| 1772 | |
| 1773 void FuncDeclaration::appendState(Statement *s) | |
| 1774 { CompoundStatement *cs; | |
| 1775 | |
| 1776 if (!fbody) | |
| 1777 { Statements *a; | |
| 1778 | |
| 1779 a = new Statements(); | |
| 1780 fbody = new CompoundStatement(0, a); | |
| 1781 } | |
| 1782 cs = fbody->isCompoundStatement(); | |
| 1783 cs->statements->push(s); | |
| 1784 } | |
| 1785 | |
| 1786 | |
| 1787 int FuncDeclaration::isMain() | |
| 1788 { | |
| 1789 return ident == Id::main && | |
| 1790 linkage != LINKc && !isMember() && !isNested(); | |
| 1791 } | |
| 1792 | |
| 1793 int FuncDeclaration::isWinMain() | |
| 1794 { | |
| 1795 return ident == Id::WinMain && | |
| 1796 linkage != LINKc && !isMember(); | |
| 1797 } | |
| 1798 | |
| 1799 int FuncDeclaration::isDllMain() | |
| 1800 { | |
| 1801 return ident == Id::DllMain && | |
| 1802 linkage != LINKc && !isMember(); | |
| 1803 } | |
| 1804 | |
| 1805 int FuncDeclaration::isExport() | |
| 1806 { | |
| 1807 return protection == PROTexport; | |
| 1808 } | |
| 1809 | |
| 1810 int FuncDeclaration::isImportedSymbol() | |
| 1811 { | |
| 1812 //printf("isImportedSymbol()\n"); | |
| 1813 //printf("protection = %d\n", protection); | |
| 1814 return (protection == PROTexport) && !fbody; | |
| 1815 } | |
| 1816 | |
| 1817 // Determine if function goes into virtual function pointer table | |
| 1818 | |
| 1819 int FuncDeclaration::isVirtual() | |
| 1820 { | |
| 1821 #if 0 | |
| 1822 printf("FuncDeclaration::isVirtual(%s)\n", toChars()); | |
| 1823 printf("%p %d %d %d %d\n", isMember(), isStatic(), protection == PROTprivate, isCtorDeclaration(), linkage != LINKd); | |
| 1824 printf("result is %d\n", | |
| 1825 isMember() && | |
| 1826 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && | |
| 1827 toParent()->isClassDeclaration()); | |
| 1828 #endif | |
| 1829 return isMember() && | |
| 1830 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && | |
| 1831 toParent()->isClassDeclaration(); | |
| 1832 } | |
| 1833 | |
| 1834 int FuncDeclaration::isAbstract() | |
| 1835 { | |
| 1836 return storage_class & STCabstract; | |
| 1837 } | |
| 1838 | |
| 1839 int FuncDeclaration::isCodeseg() | |
| 1840 { | |
| 1841 return TRUE; // functions are always in the code segment | |
| 1842 } | |
| 1843 | |
| 1844 // Determine if function needs | |
| 1845 // a static frame pointer to its lexically enclosing function | |
| 1846 | |
| 1847 int FuncDeclaration::isNested() | |
| 1848 { | |
| 1849 //if (!toParent()) | |
| 1850 //printf("FuncDeclaration::isNested('%s') parent=%p\n", toChars(), parent); | |
| 1851 //printf("\ttoParent() = '%s'\n", toParent()->toChars()); | |
| 1852 return ((storage_class & STCstatic) == 0) && | |
| 1853 (toParent2()->isFuncDeclaration() != NULL); | |
| 1854 } | |
| 1855 | |
| 1856 int FuncDeclaration::needThis() | |
| 1857 { | |
| 1858 //printf("FuncDeclaration::needThis() '%s'\n", toChars()); | |
| 1859 int i = isThis() != NULL; | |
| 1860 //printf("\t%d\n", i); | |
| 1861 if (!i && isFuncAliasDeclaration()) | |
| 1862 i = ((FuncAliasDeclaration *)this)->funcalias->needThis(); | |
| 1863 return i; | |
| 1864 } | |
| 1865 | |
| 1866 int FuncDeclaration::addPreInvariant() | |
| 1867 { | |
| 1868 AggregateDeclaration *ad = isThis(); | |
| 1869 return (ad && | |
| 1870 //ad->isClassDeclaration() && | |
| 1871 global.params.useInvariants && | |
| 1872 (protection == PROTpublic || protection == PROTexport) && | |
| 1873 !naked); | |
| 1874 } | |
| 1875 | |
| 1876 int FuncDeclaration::addPostInvariant() | |
| 1877 { | |
| 1878 AggregateDeclaration *ad = isThis(); | |
| 1879 return (ad && | |
| 1880 ad->inv && | |
| 1881 //ad->isClassDeclaration() && | |
| 1882 global.params.useInvariants && | |
| 1883 (protection == PROTpublic || protection == PROTexport) && | |
| 1884 !naked); | |
| 1885 } | |
| 1886 | |
| 1887 /********************************** | |
| 1888 * Generate a FuncDeclaration for a runtime library function. | |
| 1889 */ | |
| 1890 | |
| 1891 FuncDeclaration *FuncDeclaration::genCfunc(Type *treturn, char *name) | |
| 1892 { | |
| 1893 return genCfunc(treturn, Lexer::idPool(name)); | |
| 1894 } | |
| 1895 | |
| 1896 FuncDeclaration *FuncDeclaration::genCfunc(Type *treturn, Identifier *id) | |
| 1897 { | |
| 1898 FuncDeclaration *fd; | |
| 1899 TypeFunction *tf; | |
| 1900 Dsymbol *s; | |
| 1901 static DsymbolTable *st = NULL; | |
| 1902 | |
| 1903 //printf("genCfunc(name = '%s')\n", id->toChars()); | |
| 1904 //printf("treturn\n\t"); treturn->print(); | |
| 1905 | |
| 1906 // See if already in table | |
| 1907 if (!st) | |
| 1908 st = new DsymbolTable(); | |
| 1909 s = st->lookup(id); | |
| 1910 if (s) | |
| 1911 { | |
| 1912 fd = s->isFuncDeclaration(); | |
| 1913 assert(fd); | |
| 1914 assert(fd->type->nextOf()->equals(treturn)); | |
| 1915 } | |
| 1916 else | |
| 1917 { | |
| 1918 tf = new TypeFunction(NULL, treturn, 0, LINKc); | |
| 1919 fd = new FuncDeclaration(0, 0, id, STCstatic, tf); | |
| 1920 fd->protection = PROTpublic; | |
| 1921 fd->linkage = LINKc; | |
| 1922 | |
| 1923 st->insert(fd); | |
| 1924 } | |
| 1925 return fd; | |
| 1926 } | |
| 1927 | |
| 1928 char *FuncDeclaration::kind() | |
| 1929 { | |
| 1930 return "function"; | |
| 1931 } | |
| 1932 | |
| 1933 /****************************** FuncAliasDeclaration ************************/ | |
| 1934 | |
| 1935 // Used as a way to import a set of functions from another scope into this one. | |
| 1936 | |
| 1937 FuncAliasDeclaration::FuncAliasDeclaration(FuncDeclaration *funcalias) | |
| 1938 : FuncDeclaration(funcalias->loc, funcalias->endloc, funcalias->ident, | |
| 1939 (enum STC)funcalias->storage_class, funcalias->type) | |
| 1940 { | |
| 1941 assert(funcalias != this); | |
| 1942 this->funcalias = funcalias; | |
| 1943 } | |
| 1944 | |
| 1945 char *FuncAliasDeclaration::kind() | |
| 1946 { | |
| 1947 return "function alias"; | |
| 1948 } | |
| 1949 | |
| 1950 | |
| 1951 /****************************** FuncLiteralDeclaration ************************/ | |
| 1952 | |
| 1953 FuncLiteralDeclaration::FuncLiteralDeclaration(Loc loc, Loc endloc, Type *type, | |
| 1954 enum TOK tok, ForeachStatement *fes) | |
| 1955 : FuncDeclaration(loc, endloc, NULL, STCundefined, type) | |
| 1956 { | |
| 1957 char *id; | |
| 1958 | |
| 1959 if (fes) | |
| 1960 id = "__foreachbody"; | |
| 1961 else if (tok == TOKdelegate) | |
| 1962 id = "__dgliteral"; | |
| 1963 else | |
| 1964 id = "__funcliteral"; | |
| 1965 this->ident = Identifier::generateId(id); | |
| 1966 this->tok = tok; | |
| 1967 this->fes = fes; | |
| 1968 //printf("FuncLiteralDeclaration() id = '%s', type = '%s'\n", this->ident->toChars(), type->toChars()); | |
| 1969 } | |
| 1970 | |
| 1971 Dsymbol *FuncLiteralDeclaration::syntaxCopy(Dsymbol *s) | |
| 1972 { | |
| 1973 FuncLiteralDeclaration *f; | |
| 1974 | |
| 1975 //printf("FuncLiteralDeclaration::syntaxCopy('%s')\n", toChars()); | |
| 1976 if (s) | |
| 1977 f = (FuncLiteralDeclaration *)s; | |
| 1978 else | |
| 1979 f = new FuncLiteralDeclaration(loc, endloc, type->syntaxCopy(), tok, fes); | |
| 1980 FuncDeclaration::syntaxCopy(f); | |
| 1981 return f; | |
| 1982 } | |
| 1983 | |
| 1984 int FuncLiteralDeclaration::isNested() | |
| 1985 { | |
| 1986 //printf("FuncLiteralDeclaration::isNested() '%s'\n", toChars()); | |
| 1987 return (tok == TOKdelegate); | |
| 1988 } | |
| 1989 | |
| 1990 char *FuncLiteralDeclaration::kind() | |
| 1991 { | |
| 1992 // GCC requires the (char*) casts | |
| 1993 return (tok == TOKdelegate) ? (char*)"delegate" : (char*)"function"; | |
| 1994 } | |
| 1995 | |
| 1996 void FuncLiteralDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1997 { | |
| 1998 static Identifier *idfunc; | |
| 1999 static Identifier *iddel; | |
| 2000 | |
| 2001 if (!idfunc) | |
| 2002 idfunc = new Identifier("function", 0); | |
| 2003 if (!iddel) | |
| 2004 iddel = new Identifier("delegate", 0); | |
| 2005 | |
| 2006 type->toCBuffer(buf, ((tok == TOKdelegate) ? iddel : idfunc), hgs); | |
| 2007 bodyToCBuffer(buf, hgs); | |
| 2008 } | |
| 2009 | |
| 2010 | |
| 2011 /********************************* CtorDeclaration ****************************/ | |
| 2012 | |
| 2013 CtorDeclaration::CtorDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs) | |
| 2014 : FuncDeclaration(loc, endloc, Id::ctor, STCundefined, NULL) | |
| 2015 { | |
| 2016 this->arguments = arguments; | |
| 2017 this->varargs = varargs; | |
| 2018 //printf("CtorDeclaration() %s\n", toChars()); | |
| 2019 } | |
| 2020 | |
| 2021 Dsymbol *CtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2022 { | |
| 2023 CtorDeclaration *f; | |
| 2024 | |
| 2025 f = new CtorDeclaration(loc, endloc, NULL, varargs); | |
| 2026 | |
| 2027 f->outId = outId; | |
| 2028 f->frequire = frequire ? frequire->syntaxCopy() : NULL; | |
| 2029 f->fensure = fensure ? fensure->syntaxCopy() : NULL; | |
| 2030 f->fbody = fbody ? fbody->syntaxCopy() : NULL; | |
| 2031 assert(!fthrows); // deprecated | |
| 2032 | |
| 2033 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2034 return f; | |
| 2035 } | |
| 2036 | |
| 2037 | |
| 2038 void CtorDeclaration::semantic(Scope *sc) | |
| 2039 { | |
| 2040 ClassDeclaration *cd; | |
| 2041 Type *tret; | |
| 2042 | |
| 2043 //printf("CtorDeclaration::semantic()\n"); | |
| 2044 | |
| 2045 sc = sc->push(); | |
| 2046 sc->stc &= ~STCstatic; // not a static constructor | |
| 2047 | |
| 2048 parent = sc->parent; | |
| 2049 Dsymbol *parent = toParent(); | |
| 2050 cd = parent->isClassDeclaration(); | |
| 2051 if (!cd) | |
| 2052 { | |
| 2053 error("constructors only are for class definitions"); | |
| 2054 tret = Type::tvoid; | |
| 2055 } | |
| 2056 else | |
| 2057 tret = cd->type; //->referenceTo(); | |
| 2058 type = new TypeFunction(arguments, tret, varargs, LINKd); | |
| 2059 | |
| 2060 sc->flags |= SCOPEctor; | |
| 2061 type = type->semantic(loc, sc); | |
| 2062 sc->flags &= ~SCOPEctor; | |
| 2063 | |
| 2064 // Append: | |
| 2065 // return this; | |
| 2066 // to the function body | |
| 2067 if (fbody) | |
| 2068 { Expression *e; | |
| 2069 Statement *s; | |
| 2070 | |
| 2071 e = new ThisExp(0); | |
| 2072 s = new ReturnStatement(0, e); | |
| 2073 fbody = new CompoundStatement(0, fbody, s); | |
| 2074 } | |
| 2075 | |
| 2076 FuncDeclaration::semantic(sc); | |
| 2077 | |
| 2078 sc->pop(); | |
| 2079 | |
| 2080 // See if it's the default constructor | |
| 2081 if (cd && varargs == 0 && Argument::dim(arguments) == 0) | |
| 2082 cd->defaultCtor = this; | |
| 2083 } | |
| 2084 | |
| 2085 char *CtorDeclaration::kind() | |
| 2086 { | |
| 2087 return "constructor"; | |
| 2088 } | |
| 2089 | |
| 2090 char *CtorDeclaration::toChars() | |
| 2091 { | |
| 2092 return "this"; | |
| 2093 } | |
| 2094 | |
| 2095 int CtorDeclaration::isVirtual() | |
| 2096 { | |
| 2097 return FALSE; | |
| 2098 } | |
| 2099 | |
| 2100 int CtorDeclaration::addPreInvariant() | |
| 2101 { | |
| 2102 return FALSE; | |
| 2103 } | |
| 2104 | |
| 2105 int CtorDeclaration::addPostInvariant() | |
| 2106 { | |
| 2107 return (vthis && global.params.useInvariants); | |
| 2108 } | |
| 2109 | |
| 2110 | |
| 2111 void CtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2112 { | |
| 2113 buf->writestring("this"); | |
| 2114 Argument::argsToCBuffer(buf, hgs, arguments, varargs); | |
| 2115 bodyToCBuffer(buf, hgs); | |
| 2116 } | |
| 2117 | |
| 2118 /********************************* DtorDeclaration ****************************/ | |
| 2119 | |
| 2120 DtorDeclaration::DtorDeclaration(Loc loc, Loc endloc) | |
| 2121 : FuncDeclaration(loc, endloc, Id::dtor, STCundefined, NULL) | |
| 2122 { | |
| 2123 } | |
| 2124 | |
| 2125 Dsymbol *DtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2126 { | |
| 2127 DtorDeclaration *dd; | |
| 2128 | |
| 2129 assert(!s); | |
| 2130 dd = new DtorDeclaration(loc, endloc); | |
| 2131 return FuncDeclaration::syntaxCopy(dd); | |
| 2132 } | |
| 2133 | |
| 2134 | |
| 2135 void DtorDeclaration::semantic(Scope *sc) | |
| 2136 { | |
| 2137 ClassDeclaration *cd; | |
| 2138 | |
| 2139 parent = sc->parent; | |
| 2140 Dsymbol *parent = toParent(); | |
| 2141 cd = parent->isClassDeclaration(); | |
| 2142 if (!cd) | |
| 2143 { | |
| 2144 error("destructors only are for class definitions"); | |
| 2145 } | |
| 2146 else | |
| 2147 cd->dtors.push(this); | |
| 2148 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2149 | |
| 2150 sc = sc->push(); | |
| 2151 sc->stc &= ~STCstatic; // not a static destructor | |
| 2152 sc->linkage = LINKd; | |
| 2153 | |
| 2154 FuncDeclaration::semantic(sc); | |
| 2155 | |
| 2156 sc->pop(); | |
| 2157 } | |
| 2158 | |
| 2159 int DtorDeclaration::overloadInsert(Dsymbol *s) | |
| 2160 { | |
| 2161 return FALSE; // cannot overload destructors | |
| 2162 } | |
| 2163 | |
| 2164 int DtorDeclaration::addPreInvariant() | |
| 2165 { | |
| 2166 return (vthis && global.params.useInvariants); | |
| 2167 } | |
| 2168 | |
| 2169 int DtorDeclaration::addPostInvariant() | |
| 2170 { | |
| 2171 return FALSE; | |
| 2172 } | |
| 2173 | |
| 2174 int DtorDeclaration::isVirtual() | |
| 2175 { | |
| 2176 /* This should be FALSE so that dtor's don't get put into the vtbl[], | |
| 2177 * but doing so will require recompiling everything. | |
| 2178 */ | |
| 2179 #if BREAKABI | |
| 2180 return FALSE; | |
| 2181 #else | |
| 2182 return FuncDeclaration::isVirtual(); | |
| 2183 #endif | |
| 2184 } | |
| 2185 | |
| 2186 void DtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2187 { | |
| 2188 if (hgs->hdrgen) | |
| 2189 return; | |
| 2190 buf->writestring("~this()"); | |
| 2191 bodyToCBuffer(buf, hgs); | |
| 2192 } | |
| 2193 | |
| 2194 /********************************* StaticCtorDeclaration ****************************/ | |
| 2195 | |
| 2196 StaticCtorDeclaration::StaticCtorDeclaration(Loc loc, Loc endloc) | |
| 19 | 2197 : FuncDeclaration(loc, endloc, |
| 2198 Identifier::generateId("_staticCtor"), STCstatic, NULL) | |
| 1 | 2199 { |
| 2200 } | |
| 2201 | |
| 2202 Dsymbol *StaticCtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2203 { | |
| 2204 StaticCtorDeclaration *scd; | |
| 2205 | |
| 2206 assert(!s); | |
| 2207 scd = new StaticCtorDeclaration(loc, endloc); | |
| 2208 return FuncDeclaration::syntaxCopy(scd); | |
| 2209 } | |
| 2210 | |
| 2211 | |
| 2212 void StaticCtorDeclaration::semantic(Scope *sc) | |
| 2213 { | |
| 2214 //printf("StaticCtorDeclaration::semantic()\n"); | |
| 2215 | |
| 2216 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2217 | |
| 2218 FuncDeclaration::semantic(sc); | |
| 2219 | |
| 2220 // We're going to need ModuleInfo | |
| 2221 Module *m = getModule(); | |
| 2222 if (!m) | |
| 2223 m = sc->module; | |
| 2224 if (m) | |
| 2225 { m->needmoduleinfo = 1; | |
| 2226 #ifdef IN_GCC | |
| 2227 m->strictlyneedmoduleinfo = 1; | |
| 2228 #endif | |
| 2229 } | |
| 2230 } | |
| 2231 | |
| 2232 AggregateDeclaration *StaticCtorDeclaration::isThis() | |
| 2233 { | |
| 2234 return NULL; | |
| 2235 } | |
| 2236 | |
| 2237 int StaticCtorDeclaration::isStaticConstructor() | |
| 2238 { | |
| 2239 return TRUE; | |
| 2240 } | |
| 2241 | |
| 2242 int StaticCtorDeclaration::isVirtual() | |
| 2243 { | |
| 2244 return FALSE; | |
| 2245 } | |
| 2246 | |
| 2247 int StaticCtorDeclaration::addPreInvariant() | |
| 2248 { | |
| 2249 return FALSE; | |
| 2250 } | |
| 2251 | |
| 2252 int StaticCtorDeclaration::addPostInvariant() | |
| 2253 { | |
| 2254 return FALSE; | |
| 2255 } | |
| 2256 | |
| 2257 void StaticCtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2258 { | |
| 2259 if (hgs->hdrgen) | |
|
35
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2260 { buf->writestring("static this();\n"); |
| 1 | 2261 return; |
| 2262 } | |
| 2263 buf->writestring("static this()"); | |
| 2264 bodyToCBuffer(buf, hgs); | |
| 2265 } | |
| 2266 | |
| 2267 /********************************* StaticDtorDeclaration ****************************/ | |
| 2268 | |
| 2269 StaticDtorDeclaration::StaticDtorDeclaration(Loc loc, Loc endloc) | |
| 19 | 2270 : FuncDeclaration(loc, endloc, |
| 2271 Identifier::generateId("_staticDtor"), STCstatic, NULL) | |
| 1 | 2272 { |
| 2273 } | |
| 2274 | |
| 2275 Dsymbol *StaticDtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2276 { | |
| 2277 StaticDtorDeclaration *sdd; | |
| 2278 | |
| 2279 assert(!s); | |
| 2280 sdd = new StaticDtorDeclaration(loc, endloc); | |
| 2281 return FuncDeclaration::syntaxCopy(sdd); | |
| 2282 } | |
| 2283 | |
| 2284 | |
| 2285 void StaticDtorDeclaration::semantic(Scope *sc) | |
| 2286 { | |
| 2287 ClassDeclaration *cd; | |
| 2288 Type *tret; | |
| 2289 | |
| 2290 cd = sc->scopesym->isClassDeclaration(); | |
| 2291 if (!cd) | |
| 2292 { | |
| 2293 } | |
| 2294 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2295 | |
| 2296 FuncDeclaration::semantic(sc); | |
| 2297 | |
| 2298 // We're going to need ModuleInfo | |
| 2299 Module *m = getModule(); | |
| 2300 if (!m) | |
| 2301 m = sc->module; | |
| 2302 if (m) | |
| 2303 { m->needmoduleinfo = 1; | |
| 2304 #ifdef IN_GCC | |
| 2305 m->strictlyneedmoduleinfo = 1; | |
| 2306 #endif | |
| 2307 } | |
| 2308 } | |
| 2309 | |
| 2310 AggregateDeclaration *StaticDtorDeclaration::isThis() | |
| 2311 { | |
| 2312 return NULL; | |
| 2313 } | |
| 2314 | |
| 2315 int StaticDtorDeclaration::isStaticDestructor() | |
| 2316 { | |
| 2317 return TRUE; | |
| 2318 } | |
| 2319 | |
| 2320 int StaticDtorDeclaration::isVirtual() | |
| 2321 { | |
| 2322 return FALSE; | |
| 2323 } | |
| 2324 | |
| 2325 int StaticDtorDeclaration::addPreInvariant() | |
| 2326 { | |
| 2327 return FALSE; | |
| 2328 } | |
| 2329 | |
| 2330 int StaticDtorDeclaration::addPostInvariant() | |
| 2331 { | |
| 2332 return FALSE; | |
| 2333 } | |
| 2334 | |
| 2335 void StaticDtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2336 { | |
| 2337 if (hgs->hdrgen) | |
| 2338 return; | |
| 2339 buf->writestring("static ~this()"); | |
| 2340 bodyToCBuffer(buf, hgs); | |
| 2341 } | |
| 2342 | |
| 2343 /********************************* InvariantDeclaration ****************************/ | |
| 2344 | |
| 2345 InvariantDeclaration::InvariantDeclaration(Loc loc, Loc endloc) | |
| 2346 : FuncDeclaration(loc, endloc, Id::classInvariant, STCundefined, NULL) | |
| 2347 { | |
| 2348 } | |
| 2349 | |
| 2350 Dsymbol *InvariantDeclaration::syntaxCopy(Dsymbol *s) | |
| 2351 { | |
| 2352 InvariantDeclaration *id; | |
| 2353 | |
| 2354 assert(!s); | |
| 2355 id = new InvariantDeclaration(loc, endloc); | |
| 2356 FuncDeclaration::syntaxCopy(id); | |
| 2357 return id; | |
| 2358 } | |
| 2359 | |
| 2360 | |
| 2361 void InvariantDeclaration::semantic(Scope *sc) | |
| 2362 { | |
| 2363 AggregateDeclaration *ad; | |
| 2364 Type *tret; | |
| 2365 | |
| 2366 parent = sc->parent; | |
| 2367 Dsymbol *parent = toParent(); | |
| 2368 ad = parent->isAggregateDeclaration(); | |
| 2369 if (!ad) | |
| 2370 { | |
| 2371 error("invariants only are for struct/union/class definitions"); | |
| 2372 return; | |
| 2373 } | |
| 2374 else if (ad->inv && ad->inv != this) | |
| 2375 { | |
| 2376 error("more than one invariant for %s", ad->toChars()); | |
| 2377 } | |
| 2378 ad->inv = this; | |
| 2379 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2380 | |
| 2381 sc = sc->push(); | |
| 2382 sc->stc &= ~STCstatic; // not a static invariant | |
| 2383 sc->incontract++; | |
| 2384 sc->linkage = LINKd; | |
| 2385 | |
| 2386 FuncDeclaration::semantic(sc); | |
| 2387 | |
| 2388 sc->pop(); | |
| 2389 } | |
| 2390 | |
| 2391 int InvariantDeclaration::isVirtual() | |
| 2392 { | |
| 2393 return FALSE; | |
| 2394 } | |
| 2395 | |
| 2396 int InvariantDeclaration::addPreInvariant() | |
| 2397 { | |
| 2398 return FALSE; | |
| 2399 } | |
| 2400 | |
| 2401 int InvariantDeclaration::addPostInvariant() | |
| 2402 { | |
| 2403 return FALSE; | |
| 2404 } | |
| 2405 | |
| 2406 void InvariantDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2407 { | |
| 2408 if (hgs->hdrgen) | |
| 2409 return; | |
| 2410 buf->writestring("invariant"); | |
| 2411 bodyToCBuffer(buf, hgs); | |
| 2412 } | |
| 2413 | |
| 2414 | |
| 2415 /********************************* UnitTestDeclaration ****************************/ | |
| 2416 | |
| 2417 /******************************* | |
| 2418 * Generate unique unittest function Id so we can have multiple | |
| 2419 * instances per module. | |
| 2420 */ | |
| 2421 | |
| 2422 static Identifier *unitTestId() | |
| 2423 { | |
| 2424 static int n; | |
| 2425 char buffer[10 + sizeof(n)*3 + 1]; | |
| 2426 | |
| 2427 sprintf(buffer,"__unittest%d", n); | |
| 2428 n++; | |
| 2429 return Lexer::idPool(buffer); | |
| 2430 } | |
| 2431 | |
| 2432 UnitTestDeclaration::UnitTestDeclaration(Loc loc, Loc endloc) | |
| 2433 : FuncDeclaration(loc, endloc, unitTestId(), STCundefined, NULL) | |
| 2434 { | |
| 2435 } | |
| 2436 | |
| 2437 Dsymbol *UnitTestDeclaration::syntaxCopy(Dsymbol *s) | |
| 2438 { | |
| 2439 UnitTestDeclaration *utd; | |
| 2440 | |
| 2441 assert(!s); | |
| 2442 utd = new UnitTestDeclaration(loc, endloc); | |
| 2443 return FuncDeclaration::syntaxCopy(utd); | |
| 2444 } | |
| 2445 | |
| 2446 | |
| 2447 void UnitTestDeclaration::semantic(Scope *sc) | |
| 2448 { | |
| 2449 if (global.params.useUnitTests) | |
| 2450 { | |
| 2451 Type *tret; | |
| 2452 | |
| 2453 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2454 FuncDeclaration::semantic(sc); | |
| 2455 } | |
| 2456 | |
| 2457 // We're going to need ModuleInfo even if the unit tests are not | |
| 2458 // compiled in, because other modules may import this module and refer | |
| 2459 // to this ModuleInfo. | |
| 2460 Module *m = getModule(); | |
| 2461 if (!m) | |
| 2462 m = sc->module; | |
| 2463 if (m) | |
| 2464 m->needmoduleinfo = 1; | |
| 2465 } | |
| 2466 | |
| 2467 AggregateDeclaration *UnitTestDeclaration::isThis() | |
| 2468 { | |
| 2469 return NULL; | |
| 2470 } | |
| 2471 | |
| 2472 int UnitTestDeclaration::isVirtual() | |
| 2473 { | |
| 2474 return FALSE; | |
| 2475 } | |
| 2476 | |
| 2477 int UnitTestDeclaration::addPreInvariant() | |
| 2478 { | |
| 2479 return FALSE; | |
| 2480 } | |
| 2481 | |
| 2482 int UnitTestDeclaration::addPostInvariant() | |
| 2483 { | |
| 2484 return FALSE; | |
| 2485 } | |
| 2486 | |
| 2487 void UnitTestDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2488 { | |
| 2489 if (hgs->hdrgen) | |
| 2490 return; | |
| 2491 buf->writestring("unittest"); | |
| 2492 bodyToCBuffer(buf, hgs); | |
| 2493 } | |
| 2494 | |
| 2495 /********************************* NewDeclaration ****************************/ | |
| 2496 | |
| 2497 NewDeclaration::NewDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs) | |
| 2498 : FuncDeclaration(loc, endloc, Id::classNew, STCstatic, NULL) | |
| 2499 { | |
| 2500 this->arguments = arguments; | |
| 2501 this->varargs = varargs; | |
| 2502 } | |
| 2503 | |
| 2504 Dsymbol *NewDeclaration::syntaxCopy(Dsymbol *s) | |
| 2505 { | |
| 2506 NewDeclaration *f; | |
| 2507 | |
| 2508 f = new NewDeclaration(loc, endloc, NULL, varargs); | |
| 2509 | |
| 2510 FuncDeclaration::syntaxCopy(f); | |
| 2511 | |
| 2512 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2513 | |
| 2514 return f; | |
| 2515 } | |
| 2516 | |
| 2517 | |
| 2518 void NewDeclaration::semantic(Scope *sc) | |
| 2519 { | |
| 2520 ClassDeclaration *cd; | |
| 2521 Type *tret; | |
| 2522 | |
| 2523 //printf("NewDeclaration::semantic()\n"); | |
| 2524 | |
| 2525 parent = sc->parent; | |
| 2526 Dsymbol *parent = toParent(); | |
| 2527 cd = parent->isClassDeclaration(); | |
| 2528 if (!cd && !parent->isStructDeclaration()) | |
| 2529 { | |
| 2530 error("new allocators only are for class or struct definitions"); | |
| 2531 } | |
| 2532 tret = Type::tvoid->pointerTo(); | |
| 2533 type = new TypeFunction(arguments, tret, varargs, LINKd); | |
| 2534 | |
| 2535 type = type->semantic(loc, sc); | |
| 2536 assert(type->ty == Tfunction); | |
| 2537 | |
| 2538 // Check that there is at least one argument of type uint | |
| 2539 TypeFunction *tf = (TypeFunction *)type; | |
| 2540 if (Argument::dim(tf->parameters) < 1) | |
| 2541 { | |
| 2542 error("at least one argument of type uint expected"); | |
| 2543 } | |
| 2544 else | |
| 2545 { | |
| 2546 Argument *a = Argument::getNth(tf->parameters, 0); | |
| 2547 if (!a->type->equals(Type::tuns32)) | |
| 2548 error("first argument must be type uint, not %s", a->type->toChars()); | |
| 2549 } | |
| 2550 | |
| 2551 FuncDeclaration::semantic(sc); | |
| 2552 } | |
| 2553 | |
| 2554 char *NewDeclaration::kind() | |
| 2555 { | |
| 2556 return "allocator"; | |
| 2557 } | |
| 2558 | |
| 2559 int NewDeclaration::isVirtual() | |
| 2560 { | |
| 2561 return FALSE; | |
| 2562 } | |
| 2563 | |
| 2564 int NewDeclaration::addPreInvariant() | |
| 2565 { | |
| 2566 return FALSE; | |
| 2567 } | |
| 2568 | |
| 2569 int NewDeclaration::addPostInvariant() | |
| 2570 { | |
| 2571 return FALSE; | |
| 2572 } | |
| 2573 | |
| 2574 void NewDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2575 { | |
| 2576 buf->writestring("new"); | |
| 2577 Argument::argsToCBuffer(buf, hgs, arguments, varargs); | |
| 2578 bodyToCBuffer(buf, hgs); | |
| 2579 } | |
| 2580 | |
| 2581 | |
| 2582 /********************************* DeleteDeclaration ****************************/ | |
| 2583 | |
| 2584 DeleteDeclaration::DeleteDeclaration(Loc loc, Loc endloc, Arguments *arguments) | |
| 2585 : FuncDeclaration(loc, endloc, Id::classDelete, STCstatic, NULL) | |
| 2586 { | |
| 2587 this->arguments = arguments; | |
| 2588 } | |
| 2589 | |
| 2590 Dsymbol *DeleteDeclaration::syntaxCopy(Dsymbol *s) | |
| 2591 { | |
| 2592 DeleteDeclaration *f; | |
| 2593 | |
| 2594 f = new DeleteDeclaration(loc, endloc, NULL); | |
| 2595 | |
| 2596 FuncDeclaration::syntaxCopy(f); | |
| 2597 | |
| 2598 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2599 | |
| 2600 return f; | |
| 2601 } | |
| 2602 | |
| 2603 | |
| 2604 void DeleteDeclaration::semantic(Scope *sc) | |
| 2605 { | |
| 2606 ClassDeclaration *cd; | |
| 2607 | |
| 2608 //printf("DeleteDeclaration::semantic()\n"); | |
| 2609 | |
| 2610 parent = sc->parent; | |
| 2611 Dsymbol *parent = toParent(); | |
| 2612 cd = parent->isClassDeclaration(); | |
| 2613 if (!cd && !parent->isStructDeclaration()) | |
| 2614 { | |
| 2615 error("new allocators only are for class or struct definitions"); | |
| 2616 } | |
| 2617 type = new TypeFunction(arguments, Type::tvoid, 0, LINKd); | |
| 2618 | |
| 2619 type = type->semantic(loc, sc); | |
| 2620 assert(type->ty == Tfunction); | |
| 2621 | |
| 2622 // Check that there is only one argument of type void* | |
| 2623 TypeFunction *tf = (TypeFunction *)type; | |
| 2624 if (Argument::dim(tf->parameters) != 1) | |
| 2625 { | |
| 2626 error("one argument of type void* expected"); | |
| 2627 } | |
| 2628 else | |
| 2629 { | |
| 2630 Argument *a = Argument::getNth(tf->parameters, 0); | |
| 2631 if (!a->type->equals(Type::tvoid->pointerTo())) | |
| 2632 error("one argument of type void* expected, not %s", a->type->toChars()); | |
| 2633 } | |
| 2634 | |
| 2635 FuncDeclaration::semantic(sc); | |
| 2636 } | |
| 2637 | |
| 2638 char *DeleteDeclaration::kind() | |
| 2639 { | |
| 2640 return "deallocator"; | |
| 2641 } | |
| 2642 | |
| 2643 int DeleteDeclaration::isDelete() | |
| 2644 { | |
| 2645 return TRUE; | |
| 2646 } | |
| 2647 | |
| 2648 int DeleteDeclaration::isVirtual() | |
| 2649 { | |
| 2650 return FALSE; | |
| 2651 } | |
| 2652 | |
| 2653 int DeleteDeclaration::addPreInvariant() | |
| 2654 { | |
| 2655 return FALSE; | |
| 2656 } | |
| 2657 | |
| 2658 int DeleteDeclaration::addPostInvariant() | |
| 2659 { | |
| 2660 return FALSE; | |
| 2661 } | |
| 2662 | |
| 2663 void DeleteDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2664 { | |
| 2665 buf->writestring("delete"); | |
| 2666 Argument::argsToCBuffer(buf, hgs, arguments, 0); | |
| 2667 bodyToCBuffer(buf, hgs); | |
| 2668 } | |
| 2669 | |
| 2670 | |
| 2671 | |
| 2672 |