Mercurial > projects > ldc
annotate dmd/func.c @ 957:31bbc7f3b817
Backed out changeset [369996c08420].
The argument and order dependent numbering of static ctors/dtors generally doesn't matter
because other modules shouldn't reference their symbols. The next changeset
will fix a LDC bug that caused such references within ModuleInfo.
| author | Christian Kamm <kamm incasoftware de> |
|---|---|
| date | Sun, 15 Feb 2009 14:50:33 +0100 |
| parents | 369996c08420 |
| children | b30fe7e1dbb9 |
| 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; | |
|
510
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
71 /* The type given for "infer the return type" is a TypeFunction with |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
72 * NULL for the return type. |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
73 */ |
| 159 | 74 inferRetType = (type && type->nextOf() == NULL); |
| 75 scope = NULL; | |
| 76 hasReturnExp = 0; | |
| 77 nrvo_can = 1; | |
| 78 nrvo_var = NULL; | |
| 79 shidden = NULL; | |
|
703
06576ece1a1b
Changed premake.lua to work with mingw.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
80 |
|
06576ece1a1b
Changed premake.lua to work with mingw.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
81 // LDC |
|
06576ece1a1b
Changed premake.lua to work with mingw.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
82 isArrayOp = false; |
|
945
03d7c4aac654
SWITCHED TO LLVM 2.5 !
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
937
diff
changeset
|
83 allowInlining = false; |
| 159 | 84 } |
| 85 | |
| 86 Dsymbol *FuncDeclaration::syntaxCopy(Dsymbol *s) | |
| 87 { | |
| 88 FuncDeclaration *f; | |
| 89 | |
| 90 //printf("FuncDeclaration::syntaxCopy('%s')\n", toChars()); | |
| 91 if (s) | |
| 92 f = (FuncDeclaration *)s; | |
| 93 else | |
| 94 f = new FuncDeclaration(loc, endloc, ident, (enum STC) storage_class, type->syntaxCopy()); | |
| 95 f->outId = outId; | |
| 96 f->frequire = frequire ? frequire->syntaxCopy() : NULL; | |
| 97 f->fensure = fensure ? fensure->syntaxCopy() : NULL; | |
| 98 f->fbody = fbody ? fbody->syntaxCopy() : NULL; | |
| 99 assert(!fthrows); // deprecated | |
|
443
44f08170f4ef
Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
378
diff
changeset
|
100 |
|
664
eef8ac26c66c
Some missed LLVMDC -> LDC.
Christian Kamm <kamm incasoftware de>
parents:
658
diff
changeset
|
101 // LDC |
|
443
44f08170f4ef
Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
378
diff
changeset
|
102 f->intrinsicName = intrinsicName; |
|
44f08170f4ef
Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
378
diff
changeset
|
103 |
| 159 | 104 return f; |
| 105 } | |
| 106 | |
| 107 | |
| 108 // Do the semantic analysis on the external interface to the function. | |
| 109 | |
| 110 void FuncDeclaration::semantic(Scope *sc) | |
| 111 { TypeFunction *f; | |
| 112 StructDeclaration *sd; | |
| 113 ClassDeclaration *cd; | |
| 114 InterfaceDeclaration *id; | |
| 336 | 115 Dsymbol *pd; |
| 159 | 116 |
| 117 #if 0 | |
| 118 printf("FuncDeclaration::semantic(sc = %p, this = %p, '%s', linkage = %d)\n", sc, this, toPrettyChars(), sc->linkage); | |
| 119 if (isFuncLiteralDeclaration()) | |
| 120 printf("\tFuncLiteralDeclaration()\n"); | |
| 121 printf("sc->parent = %s\n", sc->parent->toChars()); | |
|
510
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
122 printf("type: %p, %s\n", type, type->toChars()); |
| 159 | 123 #endif |
| 124 | |
| 125 if (type->nextOf()) | |
| 126 type = type->semantic(loc, sc); | |
| 127 //type->print(); | |
| 128 if (type->ty != Tfunction) | |
| 129 { | |
| 130 error("%s must be a function", toChars()); | |
| 131 return; | |
| 132 } | |
| 133 f = (TypeFunction *)(type); | |
| 134 size_t nparams = Argument::dim(f->parameters); | |
| 135 | |
| 136 linkage = sc->linkage; | |
| 137 // if (!parent) | |
| 138 { | |
| 139 //parent = sc->scopesym; | |
| 140 parent = sc->parent; | |
| 141 } | |
| 142 protection = sc->protection; | |
| 143 storage_class |= sc->stc; | |
| 144 //printf("function storage_class = x%x\n", storage_class); | |
| 145 Dsymbol *parent = toParent(); | |
| 146 | |
|
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
644
diff
changeset
|
147 if (ident == Id::ctor && !isCtorDeclaration()) |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
644
diff
changeset
|
148 error("_ctor is reserved for constructors"); |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
644
diff
changeset
|
149 |
| 159 | 150 if (isConst() || isAuto() || isScope()) |
| 151 error("functions cannot be const or auto"); | |
| 152 | |
| 153 if (isAbstract() && !isVirtual()) | |
| 154 error("non-virtual functions cannot be abstract"); | |
| 155 | |
| 156 if (isAbstract() && isFinal()) | |
| 157 error("cannot be both final and abstract"); | |
| 158 #if 0 | |
| 159 if (isAbstract() && fbody) | |
| 160 error("abstract functions cannot have bodies"); | |
| 161 #endif | |
| 162 | |
| 163 #if 0 | |
| 164 if (isStaticConstructor() || isStaticDestructor()) | |
| 165 { | |
| 166 if (!isStatic() || type->nextOf()->ty != Tvoid) | |
| 167 error("static constructors / destructors must be static void"); | |
| 168 if (f->arguments && f->arguments->dim) | |
| 169 error("static constructors / destructors must have empty parameter list"); | |
| 170 // BUG: check for invalid storage classes | |
| 171 } | |
| 172 #endif | |
| 173 | |
| 174 #ifdef IN_GCC | |
| 175 AggregateDeclaration *ad; | |
| 176 | |
| 177 ad = parent->isAggregateDeclaration(); | |
| 178 if (ad) | |
| 179 ad->methods.push(this); | |
| 180 #endif | |
| 181 sd = parent->isStructDeclaration(); | |
| 182 if (sd) | |
| 183 { | |
| 184 // Verify no constructors, destructors, etc. | |
| 185 if (isCtorDeclaration() || | |
| 186 isDtorDeclaration() | |
| 187 //|| isInvariantDeclaration() | |
| 188 //|| isUnitTestDeclaration() | |
| 189 ) | |
| 190 { | |
| 191 error("special member functions not allowed for %ss", sd->kind()); | |
| 192 } | |
| 193 | |
| 194 #if 0 | |
| 195 if (!sd->inv) | |
| 196 sd->inv = isInvariantDeclaration(); | |
| 197 | |
| 198 if (!sd->aggNew) | |
| 199 sd->aggNew = isNewDeclaration(); | |
| 200 | |
| 201 if (isDelete()) | |
| 202 { | |
| 203 if (sd->aggDelete) | |
| 204 error("multiple delete's for struct %s", sd->toChars()); | |
| 205 sd->aggDelete = (DeleteDeclaration *)(this); | |
| 206 } | |
| 207 #endif | |
| 208 } | |
| 209 | |
| 210 id = parent->isInterfaceDeclaration(); | |
| 211 if (id) | |
| 212 { | |
| 213 storage_class |= STCabstract; | |
| 214 | |
| 215 if (isCtorDeclaration() || | |
| 216 isDtorDeclaration() || | |
| 217 isInvariantDeclaration() || | |
| 218 isUnitTestDeclaration() || isNewDeclaration() || isDelete()) | |
| 219 error("special function not allowed in interface %s", id->toChars()); | |
| 220 if (fbody) | |
| 221 error("function body is not abstract in interface %s", id->toChars()); | |
| 222 } | |
| 223 | |
| 336 | 224 /* Template member functions aren't virtual: |
| 225 * interface TestInterface { void tpl(T)(); } | |
| 226 * and so won't work in interfaces | |
| 227 */ | |
| 228 if ((pd = toParent()) != NULL && | |
| 229 pd->isTemplateInstance() && | |
| 230 (pd = toParent2()) != NULL && | |
| 231 (id = pd->isInterfaceDeclaration()) != NULL) | |
| 232 { | |
| 233 error("template member function not allowed in interface %s", id->toChars()); | |
| 234 } | |
| 235 | |
| 159 | 236 cd = parent->isClassDeclaration(); |
| 237 if (cd) | |
| 238 { int vi; | |
| 239 CtorDeclaration *ctor; | |
| 240 DtorDeclaration *dtor; | |
| 241 InvariantDeclaration *inv; | |
| 242 | |
| 243 if (isCtorDeclaration()) | |
| 244 { | |
| 245 // ctor = (CtorDeclaration *)this; | |
| 246 // if (!cd->ctor) | |
| 247 // cd->ctor = ctor; | |
| 248 return; | |
| 249 } | |
| 250 | |
| 251 #if 0 | |
| 252 dtor = isDtorDeclaration(); | |
| 253 if (dtor) | |
| 254 { | |
| 255 if (cd->dtor) | |
| 256 error("multiple destructors for class %s", cd->toChars()); | |
| 257 cd->dtor = dtor; | |
| 258 } | |
| 259 | |
| 260 inv = isInvariantDeclaration(); | |
| 261 if (inv) | |
| 262 { | |
| 263 cd->inv = inv; | |
| 264 } | |
| 265 | |
| 266 if (isNewDeclaration()) | |
| 267 { | |
| 268 if (!cd->aggNew) | |
| 269 cd->aggNew = (NewDeclaration *)(this); | |
| 270 } | |
| 271 | |
| 272 if (isDelete()) | |
| 273 { | |
| 274 if (cd->aggDelete) | |
| 275 error("multiple delete's for class %s", cd->toChars()); | |
| 276 cd->aggDelete = (DeleteDeclaration *)(this); | |
| 277 } | |
| 278 #endif | |
| 279 | |
| 280 if (storage_class & STCabstract) | |
| 281 cd->isabstract = 1; | |
| 282 | |
| 283 // if static function, do not put in vtbl[] | |
| 284 if (!isVirtual()) | |
| 285 { | |
| 286 //printf("\tnot virtual\n"); | |
| 287 goto Ldone; | |
| 288 } | |
| 289 | |
| 290 // Find index of existing function in vtbl[] to override | |
| 291 vi = findVtblIndex(&cd->vtbl, cd->baseClass ? cd->baseClass->vtbl.dim : 0); | |
| 292 switch (vi) | |
| 293 { | |
|
510
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
294 case -1: |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
295 /* Didn't find one, so |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
296 * This is an 'introducing' function which gets a new |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
297 * slot in the vtbl[]. |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
298 */ |
| 159 | 299 |
| 300 // Verify this doesn't override previous final function | |
| 301 if (cd->baseClass) | |
| 302 { Dsymbol *s = cd->baseClass->search(loc, ident, 0); | |
| 303 if (s) | |
| 304 { | |
| 305 FuncDeclaration *f = s->isFuncDeclaration(); | |
| 306 f = f->overloadExactMatch(type); | |
| 307 if (f && f->isFinal() && f->prot() != PROTprivate) | |
| 308 error("cannot override final function %s", f->toPrettyChars()); | |
| 309 } | |
| 310 } | |
| 311 | |
| 312 if (isFinal()) | |
| 313 { | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
846
diff
changeset
|
314 if (isOverride()) |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
846
diff
changeset
|
315 error("does not override any function"); |
| 159 | 316 cd->vtblFinal.push(this); |
| 317 } | |
| 318 else | |
| 319 { | |
| 320 // Append to end of vtbl[] | |
| 321 //printf("\tintroducing function\n"); | |
| 322 introducing = 1; | |
| 323 vi = cd->vtbl.dim; | |
| 324 cd->vtbl.push(this); | |
| 325 vtblIndex = vi; | |
| 326 } | |
| 327 break; | |
| 328 | |
| 329 case -2: // can't determine because of fwd refs | |
| 330 cd->sizeok = 2; // can't finish due to forward reference | |
| 331 return; | |
| 332 | |
| 333 default: | |
| 334 { FuncDeclaration *fdv = (FuncDeclaration *)cd->vtbl.data[vi]; | |
| 335 // This function is covariant with fdv | |
| 336 if (fdv->isFinal()) | |
| 337 error("cannot override final function %s", fdv->toPrettyChars()); | |
| 338 | |
| 336 | 339 #if DMDV2 |
| 159 | 340 if (!isOverride() && global.params.warnings) |
|
215
a58d8f4b84df
[svn r231] Changed: warnings are no longer treated as an error.
lindquist
parents:
162
diff
changeset
|
341 warning("%s: overrides base class function %s, but is not marked with 'override'", locToChars() fdv->toPrettyChars()); |
| 159 | 342 #endif |
| 343 | |
| 344 if (fdv->toParent() == parent) | |
| 345 { | |
| 346 // If both are mixins, then error. | |
| 347 // If either is not, the one that is not overrides | |
| 348 // the other. | |
| 349 if (fdv->parent->isClassDeclaration()) | |
| 350 break; | |
| 351 if (!this->parent->isClassDeclaration() | |
| 352 #if !BREAKABI | |
| 353 && !isDtorDeclaration() | |
| 354 #endif | |
| 336 | 355 #if DMDV2 |
| 159 | 356 && !isPostBlitDeclaration() |
| 357 #endif | |
| 358 ) | |
| 359 error("multiple overrides of same function"); | |
| 360 } | |
| 361 cd->vtbl.data[vi] = (void *)this; | |
| 362 vtblIndex = vi; | |
| 363 | |
| 364 /* This works by whenever this function is called, | |
| 365 * it actually returns tintro, which gets dynamically | |
| 366 * cast to type. But we know that tintro is a base | |
| 367 * of type, so we could optimize it by not doing a | |
| 368 * dynamic cast, but just subtracting the isBaseOf() | |
| 369 * offset if the value is != null. | |
| 370 */ | |
| 371 | |
| 372 if (fdv->tintro) | |
| 373 tintro = fdv->tintro; | |
| 374 else if (!type->equals(fdv->type)) | |
| 375 { | |
| 376 /* Only need to have a tintro if the vptr | |
| 377 * offsets differ | |
| 378 */ | |
| 379 int offset; | |
| 380 if (fdv->type->nextOf()->isBaseOf(type->nextOf(), &offset)) | |
| 381 { | |
| 382 tintro = fdv->type; | |
| 383 } | |
| 384 } | |
| 385 break; | |
| 386 } | |
| 387 } | |
| 388 | |
| 389 /* Go through all the interface bases. | |
| 390 * If this function is covariant with any members of those interface | |
| 391 * functions, set the tintro. | |
| 392 */ | |
| 393 for (int i = 0; i < cd->interfaces_dim; i++) | |
| 394 { | |
| 395 #if 1 | |
| 396 BaseClass *b = cd->interfaces[i]; | |
| 397 vi = findVtblIndex(&b->base->vtbl, b->base->vtbl.dim); | |
| 398 switch (vi) | |
| 399 { | |
| 400 case -1: | |
| 401 break; | |
| 402 | |
| 403 case -2: | |
| 404 cd->sizeok = 2; // can't finish due to forward reference | |
| 405 return; | |
| 406 | |
| 407 default: | |
| 408 { FuncDeclaration *fdv = (FuncDeclaration *)b->base->vtbl.data[vi]; | |
| 409 Type *ti = NULL; | |
| 410 | |
| 411 if (fdv->tintro) | |
| 412 ti = fdv->tintro; | |
| 413 else if (!type->equals(fdv->type)) | |
| 414 { | |
| 415 /* Only need to have a tintro if the vptr | |
| 416 * offsets differ | |
| 417 */ | |
| 418 int offset; | |
| 419 if (fdv->type->nextOf()->isBaseOf(type->nextOf(), &offset)) | |
| 420 { | |
| 421 ti = fdv->type; | |
| 422 #if 0 | |
| 423 if (offset) | |
| 424 ti = fdv->type; | |
| 425 else if (type->nextOf()->ty == Tclass) | |
| 426 { ClassDeclaration *cdn = ((TypeClass *)type->nextOf())->sym; | |
| 427 if (cdn && cdn->sizeok != 1) | |
| 428 ti = fdv->type; | |
| 429 } | |
| 430 #endif | |
| 431 } | |
| 432 } | |
| 433 if (ti) | |
| 434 { | |
| 435 if (tintro && !tintro->equals(ti)) | |
| 436 { | |
| 437 error("incompatible covariant types %s and %s", tintro->toChars(), ti->toChars()); | |
| 438 } | |
| 439 tintro = ti; | |
| 440 } | |
| 441 goto L2; | |
| 442 } | |
| 443 } | |
| 444 #else | |
| 445 BaseClass *b = cd->interfaces[i]; | |
| 446 for (vi = 0; vi < b->base->vtbl.dim; vi++) | |
| 447 { | |
| 448 Dsymbol *s = (Dsymbol *)b->base->vtbl.data[vi]; | |
| 449 //printf("interface %d vtbl[%d] %p %s\n", i, vi, s, s->toChars()); | |
| 450 FuncDeclaration *fdv = s->isFuncDeclaration(); | |
| 451 if (fdv && fdv->ident == ident) | |
| 452 { | |
| 453 int cov = type->covariant(fdv->type); | |
| 454 //printf("\tcov = %d\n", cov); | |
| 455 if (cov == 2) | |
| 456 { | |
| 457 //type->print(); | |
| 458 //fdv->type->print(); | |
| 459 //printf("%s %s\n", type->deco, fdv->type->deco); | |
| 460 error("of type %s overrides but is not covariant with %s of type %s", | |
| 461 type->toChars(), fdv->toPrettyChars(), fdv->type->toChars()); | |
| 462 } | |
| 463 if (cov == 1) | |
| 464 { Type *ti = NULL; | |
| 465 | |
| 466 if (fdv->tintro) | |
| 467 ti = fdv->tintro; | |
| 468 else if (!type->equals(fdv->type)) | |
| 469 { | |
| 470 /* Only need to have a tintro if the vptr | |
| 471 * offsets differ | |
| 472 */ | |
| 473 int offset; | |
| 474 if (fdv->type->nextOf()->isBaseOf(type->nextOf(), &offset)) | |
| 475 { | |
| 476 ti = fdv->type; | |
| 477 #if 0 | |
| 478 if (offset) | |
| 479 ti = fdv->type; | |
| 480 else if (type->nextOf()->ty == Tclass) | |
| 481 { ClassDeclaration *cdn = ((TypeClass *)type->nextOf())->sym; | |
| 482 if (cdn && cdn->sizeok != 1) | |
| 483 ti = fdv->type; | |
| 484 } | |
| 485 #endif | |
| 486 } | |
| 487 } | |
| 488 if (ti) | |
| 489 { | |
| 490 if (tintro && !tintro->equals(ti)) | |
| 491 { | |
| 492 error("incompatible covariant types %s and %s", tintro->toChars(), ti->toChars()); | |
| 493 } | |
| 494 tintro = ti; | |
| 495 } | |
| 496 goto L2; | |
| 497 } | |
| 498 if (cov == 3) | |
| 499 { | |
| 500 cd->sizeok = 2; // can't finish due to forward reference | |
| 501 return; | |
| 502 } | |
| 503 } | |
| 504 } | |
| 505 #endif | |
| 506 } | |
| 507 | |
| 508 if (introducing && isOverride()) | |
| 509 { | |
| 510 error("does not override any function"); | |
| 511 } | |
| 512 | |
| 513 L2: ; | |
| 514 } | |
| 515 else if (isOverride() && !parent->isTemplateInstance()) | |
| 516 error("override only applies to class member functions"); | |
| 517 | |
| 518 /* Do not allow template instances to add virtual functions | |
| 519 * to a class. | |
| 520 */ | |
| 521 if (isVirtual()) | |
| 522 { | |
| 523 TemplateInstance *ti = parent->isTemplateInstance(); | |
| 524 if (ti) | |
| 525 { | |
| 526 // Take care of nested templates | |
| 527 while (1) | |
| 528 { | |
| 529 TemplateInstance *ti2 = ti->tempdecl->parent->isTemplateInstance(); | |
| 530 if (!ti2) | |
| 531 break; | |
| 532 ti = ti2; | |
| 533 } | |
| 534 | |
| 535 // If it's a member template | |
| 536 ClassDeclaration *cd = ti->tempdecl->isClassMember(); | |
| 537 if (cd) | |
| 538 { | |
| 539 error("cannot use template to add virtual function to class '%s'", cd->toChars()); | |
| 540 } | |
| 541 } | |
| 542 } | |
| 543 | |
| 544 if (isMain()) | |
| 545 { | |
| 546 // Check parameters to see if they are either () or (char[][] args) | |
| 547 switch (nparams) | |
| 548 { | |
| 549 case 0: | |
| 550 break; | |
| 551 | |
| 552 case 1: | |
| 553 { | |
| 554 Argument *arg0 = Argument::getNth(f->parameters, 0); | |
| 555 if (arg0->type->ty != Tarray || | |
| 556 arg0->type->nextOf()->ty != Tarray || | |
| 557 arg0->type->nextOf()->nextOf()->ty != Tchar || | |
| 558 arg0->storageClass & (STCout | STCref | STClazy)) | |
| 559 goto Lmainerr; | |
| 560 break; | |
| 561 } | |
| 562 | |
| 563 default: | |
| 564 goto Lmainerr; | |
| 565 } | |
| 566 | |
| 567 if (f->nextOf()->ty != Tint32 && f->nextOf()->ty != Tvoid) | |
| 568 error("must return int or void, not %s", f->nextOf()->toChars()); | |
| 569 if (f->varargs) | |
| 570 { | |
| 571 Lmainerr: | |
| 572 error("parameters must be main() or main(char[][] args)"); | |
| 573 } | |
| 574 } | |
| 575 | |
| 576 if (ident == Id::assign && (sd || cd)) | |
| 577 { // Disallow identity assignment operator. | |
| 578 | |
| 579 // opAssign(...) | |
| 580 if (nparams == 0) | |
| 581 { if (f->varargs == 1) | |
| 582 goto Lassignerr; | |
| 583 } | |
| 584 else | |
| 585 { | |
| 586 Argument *arg0 = Argument::getNth(f->parameters, 0); | |
| 587 Type *t0 = arg0->type->toBasetype(); | |
| 588 Type *tb = sd ? sd->type : cd->type; | |
| 589 if (arg0->type->implicitConvTo(tb) || | |
| 590 (sd && t0->ty == Tpointer && t0->nextOf()->implicitConvTo(tb)) | |
| 591 ) | |
| 592 { | |
| 593 if (nparams == 1) | |
| 594 goto Lassignerr; | |
| 595 Argument *arg1 = Argument::getNth(f->parameters, 1); | |
| 596 if (arg1->defaultArg) | |
| 597 goto Lassignerr; | |
| 598 } | |
| 599 } | |
| 600 } | |
| 601 | |
| 602 Ldone: | |
| 603 /* Save scope for possible later use (if we need the | |
| 604 * function internals) | |
| 605 */ | |
| 606 scope = new Scope(*sc); | |
| 607 scope->setNoFree(); | |
| 608 return; | |
| 609 | |
| 610 Lassignerr: | |
| 611 error("identity assignment operator overload is illegal"); | |
| 612 } | |
| 613 | |
| 614 void FuncDeclaration::semantic2(Scope *sc) | |
| 615 { | |
| 616 } | |
| 617 | |
| 618 // Do the semantic analysis on the internals of the function. | |
| 619 | |
| 620 void FuncDeclaration::semantic3(Scope *sc) | |
| 621 { TypeFunction *f; | |
| 622 AggregateDeclaration *ad; | |
| 623 VarDeclaration *argptr = NULL; | |
| 624 VarDeclaration *_arguments = NULL; | |
| 625 | |
| 626 if (!parent) | |
| 627 { | |
| 628 if (global.errors) | |
| 629 return; | |
| 630 //printf("FuncDeclaration::semantic3(%s '%s', sc = %p)\n", kind(), toChars(), sc); | |
| 631 assert(0); | |
| 632 } | |
| 633 //printf("FuncDeclaration::semantic3('%s.%s', sc = %p, loc = %s)\n", parent->toChars(), toChars(), sc, loc.toChars()); | |
| 634 //fflush(stdout); | |
| 635 //{ static int x; if (++x == 2) *(char*)0=0; } | |
| 636 //printf("\tlinkage = %d\n", sc->linkage); | |
| 637 | |
| 638 //printf(" sc->incontract = %d\n", sc->incontract); | |
| 639 if (semanticRun) | |
| 640 return; | |
| 641 semanticRun = 1; | |
| 642 | |
| 643 if (!type || type->ty != Tfunction) | |
| 644 return; | |
| 645 f = (TypeFunction *)(type); | |
| 646 size_t nparams = Argument::dim(f->parameters); | |
| 647 | |
| 648 // Check the 'throws' clause | |
| 649 if (fthrows) | |
|
510
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
650 { |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
651 for (int i = 0; i < fthrows->dim; i++) |
| 159 | 652 { |
| 653 Type *t = (Type *)fthrows->data[i]; | |
| 654 | |
| 655 t = t->semantic(loc, sc); | |
| 656 if (!t->isClassHandle()) | |
| 657 error("can only throw classes, not %s", t->toChars()); | |
| 658 } | |
| 659 } | |
| 660 | |
| 661 if (fbody || frequire) | |
| 662 { | |
| 663 /* Symbol table into which we place parameters and nested functions, | |
| 664 * solely to diagnose name collisions. | |
| 665 */ | |
| 666 localsymtab = new DsymbolTable(); | |
| 667 | |
| 668 // Establish function scope | |
| 669 ScopeDsymbol *ss = new ScopeDsymbol(); | |
| 670 ss->parent = sc->scopesym; | |
| 671 Scope *sc2 = sc->push(ss); | |
| 672 sc2->func = this; | |
| 673 sc2->parent = this; | |
| 674 sc2->callSuper = 0; | |
| 675 sc2->sbreak = NULL; | |
| 676 sc2->scontinue = NULL; | |
| 677 sc2->sw = NULL; | |
| 678 sc2->fes = fes; | |
| 679 sc2->linkage = LINKd; | |
| 680 sc2->stc &= ~(STCauto | STCscope | STCstatic | STCabstract | STCdeprecated | STCfinal); | |
| 681 sc2->protection = PROTpublic; | |
| 682 sc2->explicitProtection = 0; | |
| 683 sc2->structalign = 8; | |
| 684 sc2->incontract = 0; | |
| 685 sc2->tf = NULL; | |
|
644
49466efd4fba
Don't let outer enclosing handlers propagate to nested function declarations.
Christian Kamm <kamm incasoftware de>
parents:
510
diff
changeset
|
686 sc2->tfOfTry = NULL; |
| 159 | 687 sc2->noctor = 0; |
| 688 | |
| 689 // Declare 'this' | |
| 690 ad = isThis(); | |
| 691 if (ad) | |
| 692 { VarDeclaration *v; | |
| 693 | |
| 694 if (isFuncLiteralDeclaration() && isNested()) | |
| 695 { | |
| 696 error("literals cannot be class members"); | |
| 697 return; | |
| 698 } | |
| 699 else | |
| 700 { | |
| 701 assert(!isNested()); // can't be both member and nested | |
| 702 assert(ad->handle); | |
| 703 v = new ThisDeclaration(ad->handle); | |
| 704 v->storage_class |= STCparameter | STCin; | |
| 705 v->semantic(sc2); | |
| 706 if (!sc2->insert(v)) | |
| 707 assert(0); | |
| 708 v->parent = this; | |
| 709 vthis = v; | |
| 710 } | |
| 711 } | |
| 712 else if (isNested()) | |
| 713 { | |
|
510
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
714 /* The 'this' for a nested function is the link to the |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
715 * enclosing function's stack frame. |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
716 * Note that nested functions and member functions are disjoint. |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
717 */ |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
718 VarDeclaration *v = new ThisDeclaration(Type::tvoid->pointerTo()); |
| 159 | 719 v->storage_class |= STCparameter | STCin; |
| 720 v->semantic(sc2); | |
| 721 if (!sc2->insert(v)) | |
| 722 assert(0); | |
| 723 v->parent = this; | |
| 724 vthis = v; | |
| 725 } | |
| 726 | |
| 727 // Declare hidden variable _arguments[] and _argptr | |
| 728 if (f->varargs == 1) | |
| 729 { Type *t; | |
| 730 | |
| 731 if (f->linkage == LINKd) | |
| 732 { // Declare _arguments[] | |
| 733 #if BREAKABI | |
| 734 v_arguments = new VarDeclaration(0, Type::typeinfotypelist->type, Id::_arguments_typeinfo, NULL); | |
| 735 v_arguments->storage_class = STCparameter | STCin; | |
| 736 v_arguments->semantic(sc2); | |
| 737 sc2->insert(v_arguments); | |
| 738 v_arguments->parent = this; | |
| 739 | |
| 740 t = Type::typeinfo->type->arrayOf(); | |
| 741 _arguments = new VarDeclaration(0, t, Id::_arguments, NULL); | |
| 742 _arguments->semantic(sc2); | |
| 743 sc2->insert(_arguments); | |
| 744 _arguments->parent = this; | |
| 745 #else | |
| 746 t = Type::typeinfo->type->arrayOf(); | |
| 747 v_arguments = new VarDeclaration(0, t, Id::_arguments, NULL); | |
| 748 v_arguments->storage_class = STCparameter | STCin; | |
| 749 v_arguments->semantic(sc2); | |
| 750 sc2->insert(v_arguments); | |
| 751 v_arguments->parent = this; | |
| 752 #endif | |
| 753 } | |
| 754 if (f->linkage == LINKd || (parameters && parameters->dim)) | |
| 755 { // Declare _argptr | |
| 756 #if IN_GCC | |
| 757 t = d_gcc_builtin_va_list_d_type; | |
| 758 #else | |
| 759 t = Type::tvoid->pointerTo(); | |
| 760 #endif | |
| 761 argptr = new VarDeclaration(0, t, Id::_argptr, NULL); | |
| 762 argptr->semantic(sc2); | |
| 763 sc2->insert(argptr); | |
| 764 argptr->parent = this; | |
| 765 } | |
| 766 } | |
| 767 | |
| 768 // Propagate storage class from tuple parameters to their element-parameters. | |
| 769 if (f->parameters) | |
| 770 { | |
| 771 for (size_t i = 0; i < f->parameters->dim; i++) | |
| 772 { Argument *arg = (Argument *)f->parameters->data[i]; | |
| 773 | |
| 774 if (arg->type->ty == Ttuple) | |
| 775 { TypeTuple *t = (TypeTuple *)arg->type; | |
| 776 size_t dim = Argument::dim(t->arguments); | |
| 777 for (size_t j = 0; j < dim; j++) | |
| 778 { Argument *narg = Argument::getNth(t->arguments, j); | |
| 779 narg->storageClass = arg->storageClass; | |
| 780 } | |
| 781 } | |
| 782 } | |
| 783 } | |
| 784 | |
| 785 // Declare all the function parameters as variables | |
| 786 if (nparams) | |
| 787 { /* parameters[] has all the tuples removed, as the back end | |
| 788 * doesn't know about tuples | |
| 789 */ | |
| 790 parameters = new Dsymbols(); | |
| 791 parameters->reserve(nparams); | |
| 792 for (size_t i = 0; i < nparams; i++) | |
| 793 { | |
| 794 Argument *arg = Argument::getNth(f->parameters, i); | |
| 795 Identifier *id = arg->ident; | |
| 796 if (!id) | |
| 797 { | |
| 798 /* Generate identifier for un-named parameter, | |
| 799 * because we need it later on. | |
| 800 */ | |
|
510
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
801 arg->ident = id = Identifier::generateId("_param_", i); |
| 159 | 802 } |
| 803 VarDeclaration *v = new VarDeclaration(loc, arg->type, id, NULL); | |
| 804 //printf("declaring parameter %s of type %s\n", v->toChars(), v->type->toChars()); | |
| 805 v->storage_class |= STCparameter; | |
| 806 if (f->varargs == 2 && i + 1 == nparams) | |
| 807 v->storage_class |= STCvariadic; | |
| 808 v->storage_class |= arg->storageClass & (STCin | STCout | STCref | STClazy); | |
| 809 if (v->storage_class & STClazy) | |
| 810 v->storage_class |= STCin; | |
| 811 v->semantic(sc2); | |
| 812 if (!sc2->insert(v)) | |
| 813 error("parameter %s.%s is already defined", toChars(), v->toChars()); | |
| 814 else | |
| 815 parameters->push(v); | |
| 816 localsymtab->insert(v); | |
| 817 v->parent = this; | |
| 818 } | |
| 819 } | |
| 820 | |
| 821 // Declare the tuple symbols and put them in the symbol table, | |
| 822 // but not in parameters[]. | |
| 823 if (f->parameters) | |
| 824 { | |
| 825 for (size_t i = 0; i < f->parameters->dim; i++) | |
| 826 { Argument *arg = (Argument *)f->parameters->data[i]; | |
| 827 | |
| 828 if (!arg->ident) | |
| 829 continue; // never used, so ignore | |
| 830 if (arg->type->ty == Ttuple) | |
| 831 { TypeTuple *t = (TypeTuple *)arg->type; | |
| 832 size_t dim = Argument::dim(t->arguments); | |
| 833 Objects *exps = new Objects(); | |
| 834 exps->setDim(dim); | |
| 835 for (size_t j = 0; j < dim; j++) | |
| 836 { Argument *narg = Argument::getNth(t->arguments, j); | |
| 837 assert(narg->ident); | |
| 838 VarDeclaration *v = sc2->search(0, narg->ident, NULL)->isVarDeclaration(); | |
| 839 assert(v); | |
|
510
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
840 Expression *e = new VarExp(v->loc, v); |
| 159 | 841 exps->data[j] = (void *)e; |
| 842 } | |
| 843 assert(arg->ident); | |
|
510
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
844 TupleDeclaration *v = new TupleDeclaration(loc, arg->ident, exps); |
| 159 | 845 //printf("declaring tuple %s\n", v->toChars()); |
| 846 v->isexp = 1; | |
| 847 if (!sc2->insert(v)) | |
| 848 error("parameter %s.%s is already defined", toChars(), v->toChars()); | |
| 849 localsymtab->insert(v); | |
| 850 v->parent = this; | |
| 851 } | |
| 852 } | |
| 853 } | |
| 854 | |
| 855 /* Do the semantic analysis on the [in] preconditions and | |
| 856 * [out] postconditions. | |
| 857 */ | |
| 858 sc2->incontract++; | |
| 859 | |
| 860 if (frequire) | |
| 861 { /* frequire is composed of the [in] contracts | |
| 862 */ | |
| 863 // BUG: need to error if accessing out parameters | |
| 864 // BUG: need to treat parameters as const | |
| 865 // BUG: need to disallow returns and throws | |
| 866 // BUG: verify that all in and ref parameters are read | |
| 867 frequire = frequire->semantic(sc2); | |
| 868 labtab = NULL; // so body can't refer to labels | |
| 869 } | |
| 870 | |
| 871 if (fensure || addPostInvariant()) | |
| 872 { /* fensure is composed of the [out] contracts | |
| 873 */ | |
| 874 ScopeDsymbol *sym = new ScopeDsymbol(); | |
| 875 sym->parent = sc2->scopesym; | |
| 876 sc2 = sc2->push(sym); | |
| 877 | |
| 878 assert(type->nextOf()); | |
| 879 if (type->nextOf()->ty == Tvoid) | |
| 880 { | |
| 881 if (outId) | |
| 882 error("void functions have no result"); | |
| 883 } | |
| 884 else | |
| 885 { | |
| 886 if (!outId) | |
| 887 outId = Id::result; // provide a default | |
| 888 } | |
| 889 | |
| 890 if (outId) | |
| 891 { // Declare result variable | |
| 892 VarDeclaration *v; | |
| 893 Loc loc = this->loc; | |
| 894 | |
| 895 if (fensure) | |
| 896 loc = fensure->loc; | |
| 897 | |
| 898 v = new VarDeclaration(loc, type->nextOf(), outId, NULL); | |
| 899 v->noauto = 1; | |
| 900 sc2->incontract--; | |
| 901 v->semantic(sc2); | |
| 902 sc2->incontract++; | |
| 903 if (!sc2->insert(v)) | |
| 904 error("out result %s is already defined", v->toChars()); | |
| 905 v->parent = this; | |
| 906 vresult = v; | |
| 907 | |
| 908 // vresult gets initialized with the function return value | |
| 909 // in ReturnStatement::semantic() | |
| 910 } | |
| 911 | |
| 912 // BUG: need to treat parameters as const | |
| 913 // BUG: need to disallow returns and throws | |
| 914 if (fensure) | |
| 915 { fensure = fensure->semantic(sc2); | |
| 916 labtab = NULL; // so body can't refer to labels | |
| 917 } | |
| 918 | |
| 919 if (!global.params.useOut) | |
| 920 { fensure = NULL; // discard | |
| 921 vresult = NULL; | |
| 922 } | |
| 923 | |
| 924 // Postcondition invariant | |
| 925 if (addPostInvariant()) | |
| 926 { | |
| 927 Expression *e = NULL; | |
| 928 if (isCtorDeclaration()) | |
| 929 { | |
| 930 // Call invariant directly only if it exists | |
| 931 InvariantDeclaration *inv = ad->inv; | |
| 932 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 933 | |
| 934 while (!inv && cd) | |
| 935 { | |
| 936 cd = cd->baseClass; | |
| 937 if (!cd) | |
| 938 break; | |
| 939 inv = cd->inv; | |
| 940 } | |
| 941 if (inv) | |
| 942 { | |
| 943 e = new DsymbolExp(0, inv); | |
| 944 e = new CallExp(0, e); | |
| 945 e = e->semantic(sc2); | |
| 946 } | |
| 947 } | |
| 948 else | |
| 949 { // Call invariant virtually | |
| 950 ThisExp *v = new ThisExp(0); | |
| 951 v->type = vthis->type; | |
| 952 e = new AssertExp(0, v); | |
| 953 } | |
| 954 if (e) | |
| 955 { | |
| 956 ExpStatement *s = new ExpStatement(0, e); | |
| 957 if (fensure) | |
| 958 fensure = new CompoundStatement(0, s, fensure); | |
| 959 else | |
| 960 fensure = s; | |
| 961 } | |
| 962 } | |
| 963 | |
| 964 if (fensure) | |
| 965 { returnLabel = new LabelDsymbol(Id::returnLabel); | |
| 966 LabelStatement *ls = new LabelStatement(0, Id::returnLabel, fensure); | |
| 967 ls->isReturnLabel = 1; | |
| 968 returnLabel->statement = ls; | |
| 969 } | |
| 970 sc2 = sc2->pop(); | |
| 971 } | |
| 972 | |
| 973 sc2->incontract--; | |
| 974 | |
| 975 if (fbody) | |
| 976 { ClassDeclaration *cd = isClassMember(); | |
| 977 | |
| 978 /* If this is a class constructor | |
| 979 */ | |
| 980 if (isCtorDeclaration() && cd) | |
| 981 { | |
| 982 for (int i = 0; i < cd->fields.dim; i++) | |
| 983 { VarDeclaration *v = (VarDeclaration *)cd->fields.data[i]; | |
| 984 | |
| 985 v->ctorinit = 0; | |
| 986 } | |
| 987 } | |
| 988 | |
| 989 if (inferRetType || f->retStyle() != RETstack) | |
| 990 nrvo_can = 0; | |
| 991 | |
| 992 fbody = fbody->semantic(sc2); | |
| 993 | |
| 994 if (inferRetType) | |
| 995 { // If no return type inferred yet, then infer a void | |
| 996 if (!type->nextOf()) | |
| 997 { | |
| 998 ((TypeFunction *)type)->next = Type::tvoid; | |
| 999 type = type->semantic(loc, sc); | |
| 1000 } | |
| 1001 f = (TypeFunction *)type; | |
| 1002 } | |
| 1003 | |
| 336 | 1004 int offend = fbody ? fbody->blockExit() & BEfallthru : TRUE; |
| 159 | 1005 |
| 1006 if (isStaticCtorDeclaration()) | |
| 1007 { /* It's a static constructor. Ensure that all | |
| 1008 * ctor consts were initialized. | |
| 1009 */ | |
| 1010 | |
| 1011 Dsymbol *p = toParent(); | |
| 1012 ScopeDsymbol *ad = p->isScopeDsymbol(); | |
| 1013 if (!ad) | |
| 1014 { | |
| 1015 error("static constructor can only be member of struct/class/module, not %s %s", p->kind(), p->toChars()); | |
| 1016 } | |
| 1017 else | |
| 1018 { | |
| 1019 for (int i = 0; i < ad->members->dim; i++) | |
| 1020 { Dsymbol *s = (Dsymbol *)ad->members->data[i]; | |
| 1021 | |
| 1022 s->checkCtorConstInit(); | |
| 1023 } | |
| 1024 } | |
| 1025 } | |
| 1026 | |
| 1027 if (isCtorDeclaration() && cd) | |
| 1028 { | |
| 1029 //printf("callSuper = x%x\n", sc2->callSuper); | |
| 1030 | |
| 1031 // Verify that all the ctorinit fields got initialized | |
| 1032 if (!(sc2->callSuper & CSXthis_ctor)) | |
| 1033 { | |
| 1034 for (int i = 0; i < cd->fields.dim; i++) | |
| 1035 { VarDeclaration *v = (VarDeclaration *)cd->fields.data[i]; | |
| 1036 | |
| 1037 if (v->ctorinit == 0 && v->isCtorinit()) | |
| 1038 error("missing initializer for const field %s", v->toChars()); | |
| 1039 } | |
| 1040 } | |
| 1041 | |
| 1042 if (!(sc2->callSuper & CSXany_ctor) && | |
| 1043 cd->baseClass && cd->baseClass->ctor) | |
| 1044 { | |
| 1045 sc2->callSuper = 0; | |
| 1046 | |
| 1047 // Insert implicit super() at start of fbody | |
| 1048 Expression *e1 = new SuperExp(0); | |
| 1049 Expression *e = new CallExp(0, e1); | |
| 1050 | |
| 1051 unsigned errors = global.errors; | |
| 1052 global.gag++; | |
| 1053 e = e->semantic(sc2); | |
| 1054 global.gag--; | |
| 1055 if (errors != global.errors) | |
| 1056 error("no match for implicit super() call in constructor"); | |
| 1057 | |
| 1058 Statement *s = new ExpStatement(0, e); | |
| 1059 fbody = new CompoundStatement(0, s, fbody); | |
| 1060 } | |
| 1061 } | |
| 1062 else if (fes) | |
| 1063 { // For foreach(){} body, append a return 0; | |
| 1064 Expression *e = new IntegerExp(0); | |
| 1065 Statement *s = new ReturnStatement(0, e); | |
| 1066 fbody = new CompoundStatement(0, fbody, s); | |
| 1067 assert(!returnLabel); | |
| 1068 } | |
| 1069 else if (!hasReturnExp && type->nextOf()->ty != Tvoid) | |
| 1070 error("expected to return a value of type %s", type->nextOf()->toChars()); | |
| 1071 else if (!inlineAsm) | |
| 1072 { | |
| 1073 if (type->nextOf()->ty == Tvoid) | |
| 1074 { | |
| 1075 if (offend && isMain()) | |
| 1076 { // Add a return 0; statement | |
| 1077 Statement *s = new ReturnStatement(0, new IntegerExp(0)); | |
| 1078 fbody = new CompoundStatement(0, fbody, s); | |
| 1079 } | |
| 1080 } | |
| 1081 else | |
| 1082 { | |
| 1083 if (offend) | |
| 1084 { Expression *e; | |
| 1085 | |
| 1086 if (global.params.warnings) | |
|
215
a58d8f4b84df
[svn r231] Changed: warnings are no longer treated as an error.
lindquist
parents:
162
diff
changeset
|
1087 { warning("%s: no return at end of function", locToChars()); |
| 159 | 1088 } |
| 1089 | |
| 1090 if (global.params.useAssert && | |
| 1091 !global.params.useInline) | |
| 1092 { /* Add an assert(0, msg); where the missing return | |
| 1093 * should be. | |
| 1094 */ | |
| 1095 e = new AssertExp( | |
| 1096 endloc, | |
| 1097 new IntegerExp(0), | |
| 1098 new StringExp(loc, "missing return expression") | |
| 1099 ); | |
| 1100 } | |
| 1101 else | |
| 1102 e = new HaltExp(endloc); | |
| 1103 e = new CommaExp(0, e, type->nextOf()->defaultInit()); | |
| 1104 e = e->semantic(sc2); | |
| 1105 Statement *s = new ExpStatement(0, e); | |
| 1106 fbody = new CompoundStatement(0, fbody, s); | |
| 1107 } | |
| 1108 } | |
| 1109 } | |
| 1110 } | |
| 1111 | |
| 1112 { | |
| 1113 Statements *a = new Statements(); | |
| 1114 | |
| 1115 // Merge in initialization of 'out' parameters | |
| 1116 if (parameters) | |
| 1117 { for (size_t i = 0; i < parameters->dim; i++) | |
| 1118 { | |
| 1119 VarDeclaration *v = (VarDeclaration *)parameters->data[i]; | |
| 1120 if (v->storage_class & STCout) | |
| 1121 { | |
| 1122 assert(v->init); | |
| 1123 ExpInitializer *ie = v->init->isExpInitializer(); | |
| 1124 assert(ie); | |
| 1125 a->push(new ExpStatement(0, ie->exp)); | |
| 1126 } | |
| 1127 } | |
| 1128 } | |
| 1129 | |
| 1130 // we'll handle variadics ourselves | |
| 1131 #if !IN_LLVM | |
| 1132 if (argptr) | |
| 1133 { // Initialize _argptr to point past non-variadic arg | |
| 1134 #if IN_GCC | |
| 1135 // Handled in FuncDeclaration::toObjFile | |
| 1136 v_argptr = argptr; | |
| 1137 v_argptr->init = new VoidInitializer(loc); | |
| 1138 #else | |
| 1139 Expression *e1; | |
| 1140 Expression *e; | |
| 1141 Type *t = argptr->type; | |
| 1142 VarDeclaration *p; | |
| 1143 unsigned offset; | |
| 1144 | |
| 1145 e1 = new VarExp(0, argptr); | |
| 1146 if (parameters && parameters->dim) | |
| 1147 p = (VarDeclaration *)parameters->data[parameters->dim - 1]; | |
| 1148 else | |
| 1149 p = v_arguments; // last parameter is _arguments[] | |
| 1150 offset = p->type->size(); | |
| 1151 offset = (offset + 3) & ~3; // assume stack aligns on 4 | |
| 1152 e = new SymOffExp(0, p, offset); | |
| 1153 e = new AssignExp(0, e1, e); | |
| 1154 e->type = t; | |
| 1155 a->push(new ExpStatement(0, e)); | |
| 1156 #endif // IN_GCC | |
| 1157 } | |
| 1158 | |
| 1159 if (_arguments) | |
| 1160 { | |
| 1161 /* Advance to elements[] member of TypeInfo_Tuple with: | |
| 1162 * _arguments = v_arguments.elements; | |
| 1163 */ | |
| 1164 Expression *e = new VarExp(0, v_arguments); | |
| 1165 e = new DotIdExp(0, e, Id::elements); | |
| 1166 Expression *e1 = new VarExp(0, _arguments); | |
| 1167 e = new AssignExp(0, e1, e); | |
| 1168 e = e->semantic(sc); | |
| 1169 a->push(new ExpStatement(0, e)); | |
| 1170 } | |
| 1171 | |
| 1172 #endif // !IN_LLVM | |
| 1173 | |
| 1174 // Merge contracts together with body into one compound statement | |
| 1175 | |
| 1176 #ifdef _DH | |
| 1177 if (frequire && global.params.useIn) | |
| 1178 { frequire->incontract = 1; | |
| 1179 a->push(frequire); | |
| 1180 } | |
| 1181 #else | |
| 1182 if (frequire && global.params.useIn) | |
| 1183 a->push(frequire); | |
| 1184 #endif | |
| 1185 | |
| 1186 // Precondition invariant | |
| 1187 if (addPreInvariant()) | |
| 1188 { | |
| 1189 Expression *e = NULL; | |
| 1190 if (isDtorDeclaration()) | |
| 1191 { | |
| 1192 // Call invariant directly only if it exists | |
| 1193 InvariantDeclaration *inv = ad->inv; | |
| 1194 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 1195 | |
| 1196 while (!inv && cd) | |
| 1197 { | |
| 1198 cd = cd->baseClass; | |
| 1199 if (!cd) | |
| 1200 break; | |
| 1201 inv = cd->inv; | |
| 1202 } | |
| 1203 if (inv) | |
| 1204 { | |
| 1205 e = new DsymbolExp(0, inv); | |
| 1206 e = new CallExp(0, e); | |
| 1207 e = e->semantic(sc2); | |
| 1208 } | |
| 1209 } | |
| 1210 else | |
| 1211 { // Call invariant virtually | |
| 1212 ThisExp *v = new ThisExp(0); | |
| 1213 v->type = vthis->type; | |
| 1214 Expression *se = new StringExp(0, "null this"); | |
| 1215 se = se->semantic(sc); | |
| 1216 se->type = Type::tchar->arrayOf(); | |
| 1217 e = new AssertExp(loc, v, se); | |
| 1218 } | |
| 1219 if (e) | |
| 1220 { | |
| 1221 ExpStatement *s = new ExpStatement(0, e); | |
| 1222 a->push(s); | |
| 1223 } | |
| 1224 } | |
| 1225 | |
| 1226 if (fbody) | |
| 1227 a->push(fbody); | |
| 1228 | |
| 1229 if (fensure) | |
| 1230 { | |
| 1231 a->push(returnLabel->statement); | |
| 1232 | |
| 1233 if (type->nextOf()->ty != Tvoid) | |
| 1234 { | |
| 1235 // Create: return vresult; | |
| 1236 assert(vresult); | |
| 1237 Expression *e = new VarExp(0, vresult); | |
| 1238 if (tintro) | |
| 1239 { e = e->implicitCastTo(sc, tintro->nextOf()); | |
| 1240 e = e->semantic(sc); | |
| 1241 } | |
| 1242 ReturnStatement *s = new ReturnStatement(0, e); | |
| 1243 a->push(s); | |
| 1244 } | |
| 1245 } | |
| 1246 | |
| 1247 fbody = new CompoundStatement(0, a); | |
| 1248 } | |
| 1249 | |
| 1250 sc2->callSuper = 0; | |
| 1251 sc2->pop(); | |
| 1252 } | |
| 1253 semanticRun = 2; | |
| 1254 } | |
| 1255 | |
| 1256 void FuncDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1257 { | |
| 1258 //printf("FuncDeclaration::toCBuffer() '%s'\n", toChars()); | |
| 1259 | |
| 1260 type->toCBuffer(buf, ident, hgs); | |
| 1261 bodyToCBuffer(buf, hgs); | |
| 1262 } | |
| 1263 | |
| 1264 | |
| 1265 void FuncDeclaration::bodyToCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1266 { | |
| 1267 if (fbody && | |
| 1268 (!hgs->hdrgen || hgs->tpltMember || canInline(1,1)) | |
| 1269 ) | |
| 1270 { buf->writenl(); | |
| 1271 | |
| 1272 // in{} | |
| 1273 if (frequire) | |
| 1274 { buf->writestring("in"); | |
| 1275 buf->writenl(); | |
| 1276 frequire->toCBuffer(buf, hgs); | |
| 1277 } | |
| 1278 | |
| 1279 // out{} | |
| 1280 if (fensure) | |
| 1281 { buf->writestring("out"); | |
| 1282 if (outId) | |
| 1283 { buf->writebyte('('); | |
| 1284 buf->writestring(outId->toChars()); | |
| 1285 buf->writebyte(')'); | |
| 1286 } | |
| 1287 buf->writenl(); | |
| 1288 fensure->toCBuffer(buf, hgs); | |
| 1289 } | |
| 1290 | |
| 1291 if (frequire || fensure) | |
| 1292 { buf->writestring("body"); | |
| 1293 buf->writenl(); | |
| 1294 } | |
| 1295 | |
| 1296 buf->writebyte('{'); | |
| 1297 buf->writenl(); | |
| 1298 fbody->toCBuffer(buf, hgs); | |
| 1299 buf->writebyte('}'); | |
| 1300 buf->writenl(); | |
| 1301 } | |
| 1302 else | |
| 1303 { buf->writeByte(';'); | |
| 1304 buf->writenl(); | |
| 1305 } | |
| 1306 } | |
| 1307 | |
| 1308 /**************************************************** | |
| 1309 * Determine if 'this' overrides fd. | |
| 1310 * Return !=0 if it does. | |
| 1311 */ | |
| 1312 | |
| 1313 int FuncDeclaration::overrides(FuncDeclaration *fd) | |
| 1314 { int result = 0; | |
| 1315 | |
| 1316 if (fd->ident == ident) | |
| 1317 { | |
| 1318 int cov = type->covariant(fd->type); | |
| 1319 if (cov) | |
| 1320 { ClassDeclaration *cd1 = toParent()->isClassDeclaration(); | |
| 1321 ClassDeclaration *cd2 = fd->toParent()->isClassDeclaration(); | |
| 1322 | |
| 1323 if (cd1 && cd2 && cd2->isBaseOf(cd1, NULL)) | |
| 1324 result = 1; | |
| 1325 } | |
| 1326 } | |
| 1327 return result; | |
| 1328 } | |
| 1329 | |
| 1330 /************************************************* | |
| 1331 * Find index of function in vtbl[0..dim] that | |
| 1332 * this function overrides. | |
| 1333 * Returns: | |
| 1334 * -1 didn't find one | |
| 1335 * -2 can't determine because of forward references | |
| 1336 */ | |
| 1337 | |
| 1338 int FuncDeclaration::findVtblIndex(Array *vtbl, int dim) | |
| 1339 { | |
| 1340 for (int vi = 0; vi < dim; vi++) | |
| 1341 { | |
| 1342 FuncDeclaration *fdv = ((Dsymbol *)vtbl->data[vi])->isFuncDeclaration(); | |
| 1343 if (fdv && fdv->ident == ident) | |
| 1344 { | |
| 1345 int cov = type->covariant(fdv->type); | |
| 1346 //printf("\tbaseclass cov = %d\n", cov); | |
| 1347 switch (cov) | |
| 1348 { | |
| 1349 case 0: // types are distinct | |
| 1350 break; | |
| 1351 | |
| 1352 case 1: | |
| 1353 return vi; | |
| 1354 | |
| 1355 case 2: | |
| 1356 //type->print(); | |
| 1357 //fdv->type->print(); | |
| 1358 //printf("%s %s\n", type->deco, fdv->type->deco); | |
| 1359 error("of type %s overrides but is not covariant with %s of type %s", | |
| 1360 type->toChars(), fdv->toPrettyChars(), fdv->type->toChars()); | |
| 1361 break; | |
| 1362 | |
| 1363 case 3: | |
| 1364 return -2; // forward references | |
| 1365 | |
| 1366 default: | |
| 1367 assert(0); | |
| 1368 } | |
| 1369 } | |
| 1370 } | |
| 1371 return -1; | |
| 1372 } | |
| 1373 | |
| 1374 /**************************************************** | |
| 1375 * Overload this FuncDeclaration with the new one f. | |
| 1376 * Return !=0 if successful; i.e. no conflict. | |
| 1377 */ | |
| 1378 | |
| 1379 int FuncDeclaration::overloadInsert(Dsymbol *s) | |
| 1380 { | |
| 1381 FuncDeclaration *f; | |
| 1382 AliasDeclaration *a; | |
| 1383 | |
| 1384 //printf("FuncDeclaration::overloadInsert(%s)\n", s->toChars()); | |
| 1385 a = s->isAliasDeclaration(); | |
| 1386 if (a) | |
| 1387 { | |
| 1388 if (overnext) | |
| 1389 return overnext->overloadInsert(a); | |
| 1390 if (!a->aliassym && a->type->ty != Tident && a->type->ty != Tinstance) | |
| 1391 { | |
| 1392 //printf("\ta = '%s'\n", a->type->toChars()); | |
| 1393 return FALSE; | |
| 1394 } | |
| 1395 overnext = a; | |
| 1396 //printf("\ttrue: no conflict\n"); | |
| 1397 return TRUE; | |
| 1398 } | |
| 1399 f = s->isFuncDeclaration(); | |
| 1400 if (!f) | |
| 1401 return FALSE; | |
| 1402 | |
| 1403 if (type && f->type && // can be NULL for overloaded constructors | |
| 1404 f->type->covariant(type) && | |
| 1405 !isFuncAliasDeclaration()) | |
| 1406 { | |
| 1407 //printf("\tfalse: conflict %s\n", kind()); | |
| 1408 return FALSE; | |
| 1409 } | |
| 1410 | |
| 1411 if (overnext) | |
| 1412 return overnext->overloadInsert(f); | |
| 1413 overnext = f; | |
| 1414 //printf("\ttrue: no conflict\n"); | |
| 1415 return TRUE; | |
| 1416 } | |
| 1417 | |
| 1418 /******************************************** | |
| 1419 * Find function in overload list that exactly matches t. | |
| 1420 */ | |
| 1421 | |
| 1422 /*************************************************** | |
| 1423 * Visit each overloaded function in turn, and call | |
| 1424 * (*fp)(param, f) on it. | |
| 1425 * Exit when no more, or (*fp)(param, f) returns 1. | |
| 1426 * Returns: | |
| 1427 * 0 continue | |
| 1428 * 1 done | |
| 1429 */ | |
| 1430 | |
| 1431 int overloadApply(FuncDeclaration *fstart, | |
| 1432 int (*fp)(void *, FuncDeclaration *), | |
| 1433 void *param) | |
| 1434 { | |
| 1435 FuncDeclaration *f; | |
| 1436 Declaration *d; | |
| 1437 Declaration *next; | |
| 1438 | |
| 1439 for (d = fstart; d; d = next) | |
| 1440 { FuncAliasDeclaration *fa = d->isFuncAliasDeclaration(); | |
| 1441 | |
| 1442 if (fa) | |
| 1443 { | |
| 1444 if (overloadApply(fa->funcalias, fp, param)) | |
| 1445 return 1; | |
| 1446 next = fa->overnext; | |
| 1447 } | |
| 1448 else | |
| 1449 { | |
| 1450 AliasDeclaration *a = d->isAliasDeclaration(); | |
| 1451 | |
| 1452 if (a) | |
| 1453 { | |
| 1454 Dsymbol *s = a->toAlias(); | |
| 1455 next = s->isDeclaration(); | |
| 1456 if (next == a) | |
| 1457 break; | |
| 1458 if (next == fstart) | |
| 1459 break; | |
| 1460 } | |
| 1461 else | |
| 1462 { | |
| 1463 f = d->isFuncDeclaration(); | |
| 1464 if (!f) | |
| 1465 { d->error("is aliased to a function"); | |
| 1466 break; // BUG: should print error message? | |
| 1467 } | |
| 1468 if ((*fp)(param, f)) | |
| 1469 return 1; | |
| 1470 | |
| 1471 next = f->overnext; | |
| 1472 } | |
| 1473 } | |
| 1474 } | |
| 1475 return 0; | |
| 1476 } | |
| 1477 | |
| 1478 /******************************************** | |
| 1479 * Find function in overload list that exactly matches t. | |
| 1480 */ | |
| 1481 | |
| 1482 struct Param1 | |
| 1483 { | |
| 1484 Type *t; // type to match | |
| 1485 FuncDeclaration *f; // return value | |
| 1486 }; | |
| 1487 | |
| 1488 int fp1(void *param, FuncDeclaration *f) | |
| 1489 { Param1 *p = (Param1 *)param; | |
| 1490 Type *t = p->t; | |
| 1491 | |
| 1492 if (t->equals(f->type)) | |
| 1493 { p->f = f; | |
| 1494 return 1; | |
| 1495 } | |
| 1496 | |
| 336 | 1497 #if DMDV2 |
| 159 | 1498 /* Allow covariant matches, if it's just a const conversion |
| 1499 * of the return type | |
| 1500 */ | |
| 1501 if (t->ty == Tfunction) | |
| 1502 { TypeFunction *tf = (TypeFunction *)f->type; | |
| 1503 if (tf->covariant(t) == 1 && | |
| 1504 tf->nextOf()->implicitConvTo(t->nextOf()) >= MATCHconst) | |
| 1505 { | |
| 1506 p->f = f; | |
| 1507 return 1; | |
| 1508 } | |
| 1509 } | |
| 1510 #endif | |
| 1511 return 0; | |
| 1512 } | |
| 1513 | |
| 1514 FuncDeclaration *FuncDeclaration::overloadExactMatch(Type *t) | |
| 1515 { | |
| 1516 Param1 p; | |
| 1517 p.t = t; | |
| 1518 p.f = NULL; | |
| 1519 overloadApply(this, &fp1, &p); | |
| 1520 return p.f; | |
| 1521 } | |
| 1522 | |
| 1523 #if 0 | |
| 1524 FuncDeclaration *FuncDeclaration::overloadExactMatch(Type *t) | |
| 1525 { | |
| 1526 FuncDeclaration *f; | |
| 1527 Declaration *d; | |
| 1528 Declaration *next; | |
| 1529 | |
| 1530 for (d = this; d; d = next) | |
| 1531 { FuncAliasDeclaration *fa = d->isFuncAliasDeclaration(); | |
| 1532 | |
| 1533 if (fa) | |
| 1534 { | |
| 1535 FuncDeclaration *f2 = fa->funcalias->overloadExactMatch(t); | |
| 1536 if (f2) | |
| 1537 return f2; | |
| 1538 next = fa->overnext; | |
| 1539 } | |
| 1540 else | |
| 1541 { | |
| 1542 AliasDeclaration *a = d->isAliasDeclaration(); | |
| 1543 | |
| 1544 if (a) | |
| 1545 { | |
| 1546 Dsymbol *s = a->toAlias(); | |
| 1547 next = s->isDeclaration(); | |
| 1548 if (next == a) | |
| 1549 break; | |
| 1550 } | |
| 1551 else | |
| 1552 { | |
| 1553 f = d->isFuncDeclaration(); | |
| 1554 if (!f) | |
| 1555 break; // BUG: should print error message? | |
| 1556 if (t->equals(d->type)) | |
| 1557 return f; | |
| 1558 next = f->overnext; | |
| 1559 } | |
| 1560 } | |
| 1561 } | |
| 1562 return NULL; | |
| 1563 } | |
| 1564 #endif | |
| 1565 | |
| 1566 /******************************************** | |
| 1567 * Decide which function matches the arguments best. | |
| 1568 */ | |
| 1569 | |
| 1570 struct Param2 | |
| 1571 { | |
| 1572 Match *m; | |
| 1573 Expressions *arguments; | |
| 1574 }; | |
| 1575 | |
| 1576 int fp2(void *param, FuncDeclaration *f) | |
| 1577 { Param2 *p = (Param2 *)param; | |
| 1578 Match *m = p->m; | |
| 1579 Expressions *arguments = p->arguments; | |
| 1580 MATCH match; | |
| 1581 | |
| 1582 if (f != m->lastf) // skip duplicates | |
| 1583 { | |
| 1584 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
|
1585 TypeFunction *tf = (TypeFunction *)f->type; |
| 159 | 1586 match = (MATCH) tf->callMatch(arguments); |
|
717
a26b0c5d5942
Merged DMD 1.036.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
703
diff
changeset
|
1587 //printf("1match = %d\n", match); |
| 159 | 1588 if (match != MATCHnomatch) |
| 1589 { | |
| 1590 if (match > m->last) | |
| 1591 goto LfIsBetter; | |
| 1592 | |
| 1593 if (match < m->last) | |
| 1594 goto LlastIsBetter; | |
| 1595 | |
| 1596 /* See if one of the matches overrides the other. | |
| 1597 */ | |
| 1598 if (m->lastf->overrides(f)) | |
| 1599 goto LlastIsBetter; | |
| 1600 else if (f->overrides(m->lastf)) | |
| 1601 goto LfIsBetter; | |
| 1602 | |
| 1603 Lambiguous: | |
| 1604 m->nextf = f; | |
| 1605 m->count++; | |
| 1606 return 0; | |
| 1607 | |
| 1608 LfIsBetter: | |
| 1609 m->last = match; | |
| 1610 m->lastf = f; | |
| 1611 m->count = 1; | |
| 1612 return 0; | |
| 1613 | |
| 1614 LlastIsBetter: | |
| 1615 return 0; | |
| 1616 } | |
| 1617 } | |
| 1618 return 0; | |
| 1619 } | |
| 1620 | |
| 1621 | |
| 1622 void overloadResolveX(Match *m, FuncDeclaration *fstart, Expressions *arguments) | |
| 1623 { | |
| 1624 Param2 p; | |
| 1625 p.m = m; | |
| 1626 p.arguments = arguments; | |
| 1627 overloadApply(fstart, &fp2, &p); | |
| 1628 } | |
| 1629 | |
| 1630 #if 0 | |
| 1631 // Recursive helper function | |
| 1632 | |
| 1633 void overloadResolveX(Match *m, FuncDeclaration *fstart, Expressions *arguments) | |
| 1634 { | |
| 1635 MATCH match; | |
| 1636 Declaration *d; | |
| 1637 Declaration *next; | |
| 1638 | |
| 1639 for (d = fstart; d; d = next) | |
| 1640 { | |
| 1641 FuncDeclaration *f; | |
| 1642 FuncAliasDeclaration *fa; | |
| 1643 AliasDeclaration *a; | |
| 1644 | |
| 1645 fa = d->isFuncAliasDeclaration(); | |
| 1646 if (fa) | |
| 1647 { | |
| 1648 overloadResolveX(m, fa->funcalias, arguments); | |
| 1649 next = fa->overnext; | |
| 1650 } | |
| 1651 else if ((f = d->isFuncDeclaration()) != NULL) | |
| 1652 { | |
| 1653 next = f->overnext; | |
| 1654 if (f == m->lastf) | |
| 1655 continue; // skip duplicates | |
| 1656 else | |
| 1657 { | |
| 1658 TypeFunction *tf; | |
| 1659 | |
| 1660 m->anyf = f; | |
| 1661 tf = (TypeFunction *)f->type; | |
| 1662 match = (MATCH) tf->callMatch(arguments); | |
|
717
a26b0c5d5942
Merged DMD 1.036.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
703
diff
changeset
|
1663 //printf("2match = %d\n", match); |
| 159 | 1664 if (match != MATCHnomatch) |
| 1665 { | |
| 1666 if (match > m->last) | |
| 1667 goto LfIsBetter; | |
| 1668 | |
| 1669 if (match < m->last) | |
| 1670 goto LlastIsBetter; | |
| 1671 | |
| 1672 /* See if one of the matches overrides the other. | |
| 1673 */ | |
| 1674 if (m->lastf->overrides(f)) | |
| 1675 goto LlastIsBetter; | |
| 1676 else if (f->overrides(m->lastf)) | |
| 1677 goto LfIsBetter; | |
| 1678 | |
| 1679 Lambiguous: | |
| 1680 m->nextf = f; | |
| 1681 m->count++; | |
| 1682 continue; | |
| 1683 | |
| 1684 LfIsBetter: | |
| 1685 m->last = match; | |
| 1686 m->lastf = f; | |
| 1687 m->count = 1; | |
| 1688 continue; | |
| 1689 | |
| 1690 LlastIsBetter: | |
| 1691 continue; | |
| 1692 } | |
| 1693 } | |
| 1694 } | |
| 1695 else if ((a = d->isAliasDeclaration()) != NULL) | |
| 1696 { | |
| 1697 Dsymbol *s = a->toAlias(); | |
| 1698 next = s->isDeclaration(); | |
| 1699 if (next == a) | |
| 1700 break; | |
| 1701 if (next == fstart) | |
| 1702 break; | |
| 1703 } | |
| 1704 else | |
| 1705 { d->error("is aliased to a function"); | |
| 1706 break; | |
| 1707 } | |
| 1708 } | |
| 1709 } | |
| 1710 #endif | |
| 1711 | |
| 1712 FuncDeclaration *FuncDeclaration::overloadResolve(Loc loc, Expressions *arguments) | |
| 1713 { | |
| 1714 TypeFunction *tf; | |
| 1715 Match m; | |
| 1716 | |
| 1717 #if 0 | |
| 1718 printf("FuncDeclaration::overloadResolve('%s')\n", toChars()); | |
| 1719 if (arguments) | |
| 1720 { int i; | |
| 1721 | |
| 1722 for (i = 0; i < arguments->dim; i++) | |
| 1723 { Expression *arg; | |
| 1724 | |
| 1725 arg = (Expression *)arguments->data[i]; | |
| 1726 assert(arg->type); | |
| 1727 printf("\t%s: ", arg->toChars()); | |
| 1728 arg->type->print(); | |
| 1729 } | |
| 1730 } | |
| 1731 #endif | |
| 1732 | |
| 1733 memset(&m, 0, sizeof(m)); | |
| 1734 m.last = MATCHnomatch; | |
| 1735 overloadResolveX(&m, this, arguments); | |
| 1736 | |
| 1737 if (m.count == 1) // exactly one match | |
| 1738 { | |
| 1739 return m.lastf; | |
| 1740 } | |
| 1741 else | |
| 1742 { | |
| 1743 OutBuffer buf; | |
| 1744 | |
| 1745 if (arguments) | |
| 1746 { | |
| 1747 HdrGenState hgs; | |
| 1748 | |
| 1749 argExpTypesToCBuffer(&buf, arguments, &hgs); | |
| 1750 } | |
| 1751 | |
| 1752 if (m.last == MATCHnomatch) | |
| 1753 { | |
| 1754 tf = (TypeFunction *)type; | |
| 1755 | |
| 1756 //printf("tf = %s, args = %s\n", tf->deco, ((Expression *)arguments->data[0])->type->deco); | |
| 1757 error(loc, "%s does not match parameter types (%s)", | |
| 1758 Argument::argsTypesToChars(tf->parameters, tf->varargs), | |
| 1759 buf.toChars()); | |
| 1760 return m.anyf; // as long as it's not a FuncAliasDeclaration | |
| 1761 } | |
| 1762 else | |
| 1763 { | |
| 1764 #if 1 | |
| 1765 TypeFunction *t1 = (TypeFunction *)m.lastf->type; | |
| 1766 TypeFunction *t2 = (TypeFunction *)m.nextf->type; | |
| 1767 | |
| 1768 error(loc, "called with argument types:\n\t(%s)\nmatches both:\n\t%s%s\nand:\n\t%s%s", | |
| 1769 buf.toChars(), | |
| 1770 m.lastf->toPrettyChars(), Argument::argsTypesToChars(t1->parameters, t1->varargs), | |
| 1771 m.nextf->toPrettyChars(), Argument::argsTypesToChars(t2->parameters, t2->varargs)); | |
| 1772 #else | |
| 1773 error(loc, "overloads %s and %s both match argument list for %s", | |
| 1774 m.lastf->type->toChars(), | |
| 1775 m.nextf->type->toChars(), | |
| 1776 m.lastf->toChars()); | |
| 1777 #endif | |
| 1778 return m.lastf; | |
| 1779 } | |
| 1780 } | |
| 1781 } | |
| 1782 | |
| 1783 /******************************** | |
| 1784 * Labels are in a separate scope, one per function. | |
| 1785 */ | |
| 1786 | |
| 1787 LabelDsymbol *FuncDeclaration::searchLabel(Identifier *ident) | |
| 1788 { Dsymbol *s; | |
| 1789 | |
| 1790 if (!labtab) | |
| 1791 labtab = new DsymbolTable(); // guess we need one | |
| 1792 | |
| 1793 s = labtab->lookup(ident); | |
| 1794 if (!s) | |
| 1795 { | |
| 1796 s = new LabelDsymbol(ident); | |
| 1797 labtab->insert(s); | |
| 1798 } | |
| 1799 return (LabelDsymbol *)s; | |
| 1800 } | |
| 336 | 1801 |
| 159 | 1802 /**************************************** |
| 1803 * If non-static member function that has a 'this' pointer, | |
| 1804 * return the aggregate it is a member of. | |
| 1805 * Otherwise, return NULL. | |
| 1806 */ | |
| 1807 | |
| 1808 AggregateDeclaration *FuncDeclaration::isThis() | |
| 1809 { AggregateDeclaration *ad; | |
| 1810 | |
| 1811 //printf("+FuncDeclaration::isThis() '%s'\n", toChars()); | |
| 1812 ad = NULL; | |
| 1813 if ((storage_class & STCstatic) == 0) | |
| 1814 { | |
| 1815 ad = isMember2(); | |
| 1816 } | |
| 1817 //printf("-FuncDeclaration::isThis() %p\n", ad); | |
| 1818 return ad; | |
| 1819 } | |
| 1820 | |
| 1821 AggregateDeclaration *FuncDeclaration::isMember2() | |
| 1822 { AggregateDeclaration *ad; | |
| 1823 | |
| 1824 //printf("+FuncDeclaration::isMember2() '%s'\n", toChars()); | |
| 1825 ad = NULL; | |
| 1826 for (Dsymbol *s = this; s; s = s->parent) | |
| 1827 { | |
| 1828 //printf("\ts = '%s', parent = '%s', kind = %s\n", s->toChars(), s->parent->toChars(), s->parent->kind()); | |
| 1829 ad = s->isMember(); | |
| 1830 if (ad) | |
| 1831 { //printf("test4\n"); | |
| 1832 break; | |
| 1833 } | |
| 1834 if (!s->parent || | |
| 1835 (!s->parent->isTemplateInstance())) | |
| 1836 { //printf("test5\n"); | |
| 1837 break; | |
| 1838 } | |
| 1839 } | |
| 1840 //printf("-FuncDeclaration::isMember2() %p\n", ad); | |
| 1841 return ad; | |
| 1842 } | |
| 1843 | |
| 1844 /***************************************** | |
| 1845 * Determine lexical level difference from 'this' to nested function 'fd'. | |
| 1846 * Error if this cannot call fd. | |
| 1847 * Returns: | |
| 1848 * 0 same level | |
| 1849 * -1 increase nesting by 1 (fd is nested within 'this') | |
| 1850 * >0 decrease nesting by number | |
| 1851 */ | |
| 1852 | |
| 1853 int FuncDeclaration::getLevel(Loc loc, FuncDeclaration *fd) | |
| 1854 { int level; | |
| 1855 Dsymbol *s; | |
| 1856 Dsymbol *fdparent; | |
| 1857 | |
| 1858 //printf("FuncDeclaration::getLevel(fd = '%s')\n", fd->toChars()); | |
| 1859 fdparent = fd->toParent2(); | |
| 1860 if (fdparent == this) | |
| 1861 return -1; | |
| 1862 s = this; | |
| 1863 level = 0; | |
| 1864 while (fd != s && fdparent != s->toParent2()) | |
| 1865 { | |
| 1866 //printf("\ts = '%s'\n", s->toChars()); | |
| 1867 FuncDeclaration *thisfd = s->isFuncDeclaration(); | |
| 1868 if (thisfd) | |
| 1869 { if (!thisfd->isNested() && !thisfd->vthis) | |
| 1870 goto Lerr; | |
| 1871 } | |
| 1872 else | |
| 1873 { | |
| 1874 ClassDeclaration *thiscd = s->isClassDeclaration(); | |
| 1875 if (thiscd) | |
| 1876 { if (!thiscd->isNested()) | |
| 1877 goto Lerr; | |
| 1878 } | |
| 1879 else | |
| 1880 goto Lerr; | |
| 1881 } | |
| 1882 | |
| 1883 s = s->toParent2(); | |
| 1884 assert(s); | |
| 1885 level++; | |
| 1886 } | |
| 1887 return level; | |
| 1888 | |
| 1889 Lerr: | |
| 1890 error(loc, "cannot access frame of function %s", fd->toChars()); | |
| 1891 return 1; | |
| 1892 } | |
| 1893 | |
| 1894 void FuncDeclaration::appendExp(Expression *e) | |
| 1895 { Statement *s; | |
| 1896 | |
| 1897 s = new ExpStatement(0, e); | |
| 1898 appendState(s); | |
| 1899 } | |
| 1900 | |
| 1901 void FuncDeclaration::appendState(Statement *s) | |
| 1902 { CompoundStatement *cs; | |
| 1903 | |
| 1904 if (!fbody) | |
| 1905 { Statements *a; | |
| 1906 | |
| 1907 a = new Statements(); | |
| 1908 fbody = new CompoundStatement(0, a); | |
| 1909 } | |
| 1910 cs = fbody->isCompoundStatement(); | |
| 1911 cs->statements->push(s); | |
| 1912 } | |
| 1913 | |
| 1914 | |
| 1915 int FuncDeclaration::isMain() | |
| 1916 { | |
| 1917 return ident == Id::main && | |
| 1918 linkage != LINKc && !isMember() && !isNested(); | |
| 1919 } | |
| 1920 | |
| 1921 int FuncDeclaration::isWinMain() | |
| 1922 { | |
|
510
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
1923 //printf("FuncDeclaration::isWinMain() %s\n", toChars()); |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
1924 #if 0 |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
1925 int x = ident == Id::WinMain && |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
1926 linkage != LINKc && !isMember(); |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
1927 printf("%s\n", x ? "yes" : "no"); |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
1928 return x; |
|
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
1929 #else |
| 159 | 1930 return ident == Id::WinMain && |
| 1931 linkage != LINKc && !isMember(); | |
|
510
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
1932 #endif |
| 159 | 1933 } |
| 1934 | |
| 1935 int FuncDeclaration::isDllMain() | |
| 1936 { | |
| 1937 return ident == Id::DllMain && | |
| 1938 linkage != LINKc && !isMember(); | |
| 1939 } | |
| 1940 | |
| 1941 int FuncDeclaration::isExport() | |
| 1942 { | |
| 1943 return protection == PROTexport; | |
| 1944 } | |
| 1945 | |
| 1946 int FuncDeclaration::isImportedSymbol() | |
| 1947 { | |
| 1948 //printf("isImportedSymbol()\n"); | |
| 1949 //printf("protection = %d\n", protection); | |
| 1950 return (protection == PROTexport) && !fbody; | |
| 1951 } | |
| 1952 | |
| 1953 // Determine if function goes into virtual function pointer table | |
| 1954 | |
| 1955 int FuncDeclaration::isVirtual() | |
| 1956 { | |
| 1957 #if 0 | |
| 1958 printf("FuncDeclaration::isVirtual(%s)\n", toChars()); | |
| 1959 printf("%p %d %d %d %d\n", isMember(), isStatic(), protection == PROTprivate, isCtorDeclaration(), linkage != LINKd); | |
| 1960 printf("result is %d\n", | |
| 1961 isMember() && | |
| 1962 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && | |
| 1963 toParent()->isClassDeclaration()); | |
| 1964 #endif | |
| 1965 return isMember() && | |
| 1966 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && | |
| 1967 toParent()->isClassDeclaration(); | |
| 1968 } | |
| 1969 | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1970 int FuncDeclaration::isFinal() |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1971 { |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1972 ClassDeclaration *cd; |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1973 #if 0 |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1974 printf("FuncDeclaration::isFinal(%s)\n", toChars()); |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1975 printf("%p %d %d %d %d\n", isMember(), isStatic(), protection == PROTprivate, isCtorDeclaration(), linkage != LINKd); |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1976 printf("result is %d\n", |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1977 isMember() && |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1978 !(isStatic() || protection == PROTprivate || protection == PROTpackage) && |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1979 (cd = toParent()->isClassDeclaration()) != NULL && |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1980 cd->storage_class & STCfinal); |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1981 #endif |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1982 return isMember() && |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1983 (Declaration::isFinal() || |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1984 ((cd = toParent()->isClassDeclaration()) != NULL && cd->storage_class & STCfinal)); |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1985 } |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
1986 |
| 159 | 1987 int FuncDeclaration::isAbstract() |
| 1988 { | |
| 1989 return storage_class & STCabstract; | |
| 1990 } | |
| 1991 | |
| 1992 int FuncDeclaration::isCodeseg() | |
| 1993 { | |
| 1994 return TRUE; // functions are always in the code segment | |
| 1995 } | |
| 1996 | |
| 1997 // Determine if function needs | |
| 1998 // a static frame pointer to its lexically enclosing function | |
| 1999 | |
| 2000 int FuncDeclaration::isNested() | |
| 2001 { | |
| 2002 //if (!toParent()) | |
| 2003 //printf("FuncDeclaration::isNested('%s') parent=%p\n", toChars(), parent); | |
| 2004 //printf("\ttoParent() = '%s'\n", toParent()->toChars()); | |
| 2005 return ((storage_class & STCstatic) == 0) && | |
| 2006 (toParent2()->isFuncDeclaration() != NULL); | |
| 2007 } | |
| 2008 | |
| 2009 int FuncDeclaration::needThis() | |
| 2010 { | |
| 2011 //printf("FuncDeclaration::needThis() '%s'\n", toChars()); | |
| 2012 int i = isThis() != NULL; | |
| 2013 //printf("\t%d\n", i); | |
| 2014 if (!i && isFuncAliasDeclaration()) | |
| 2015 i = ((FuncAliasDeclaration *)this)->funcalias->needThis(); | |
| 2016 return i; | |
| 2017 } | |
| 2018 | |
| 2019 int FuncDeclaration::addPreInvariant() | |
| 2020 { | |
| 2021 AggregateDeclaration *ad = isThis(); | |
| 2022 return (ad && | |
| 2023 //ad->isClassDeclaration() && | |
| 2024 global.params.useInvariants && | |
| 2025 (protection == PROTpublic || protection == PROTexport) && | |
| 2026 !naked); | |
| 2027 } | |
| 2028 | |
| 2029 int FuncDeclaration::addPostInvariant() | |
| 2030 { | |
| 2031 AggregateDeclaration *ad = isThis(); | |
| 2032 return (ad && | |
| 2033 ad->inv && | |
| 2034 //ad->isClassDeclaration() && | |
| 2035 global.params.useInvariants && | |
| 2036 (protection == PROTpublic || protection == PROTexport) && | |
| 2037 !naked); | |
| 2038 } | |
| 2039 | |
| 2040 /********************************** | |
| 2041 * Generate a FuncDeclaration for a runtime library function. | |
| 2042 */ | |
| 2043 | |
|
378
d8234836b40f
Get rid of runTimeHack and instead add proper argument info to the frontend
Christian Kamm <kamm incasoftware de>
parents:
336
diff
changeset
|
2044 // |
|
664
eef8ac26c66c
Some missed LLVMDC -> LDC.
Christian Kamm <kamm incasoftware de>
parents:
658
diff
changeset
|
2045 // LDC: Adjusted to give argument info to the runtime function decl. |
|
378
d8234836b40f
Get rid of runTimeHack and instead add proper argument info to the frontend
Christian Kamm <kamm incasoftware de>
parents:
336
diff
changeset
|
2046 // |
|
d8234836b40f
Get rid of runTimeHack and instead add proper argument info to the frontend
Christian Kamm <kamm incasoftware de>
parents:
336
diff
changeset
|
2047 |
|
d8234836b40f
Get rid of runTimeHack and instead add proper argument info to the frontend
Christian Kamm <kamm incasoftware de>
parents:
336
diff
changeset
|
2048 FuncDeclaration *FuncDeclaration::genCfunc(Arguments *args, Type *treturn, char *name) |
| 159 | 2049 { |
|
378
d8234836b40f
Get rid of runTimeHack and instead add proper argument info to the frontend
Christian Kamm <kamm incasoftware de>
parents:
336
diff
changeset
|
2050 return genCfunc(args, treturn, Lexer::idPool(name)); |
| 159 | 2051 } |
| 2052 | |
|
378
d8234836b40f
Get rid of runTimeHack and instead add proper argument info to the frontend
Christian Kamm <kamm incasoftware de>
parents:
336
diff
changeset
|
2053 FuncDeclaration *FuncDeclaration::genCfunc(Arguments *args, Type *treturn, Identifier *id) |
| 159 | 2054 { |
| 2055 FuncDeclaration *fd; | |
| 2056 TypeFunction *tf; | |
| 2057 Dsymbol *s; | |
| 2058 static DsymbolTable *st = NULL; | |
| 2059 | |
| 2060 //printf("genCfunc(name = '%s')\n", id->toChars()); | |
| 2061 //printf("treturn\n\t"); treturn->print(); | |
| 2062 | |
| 2063 // See if already in table | |
| 2064 if (!st) | |
| 2065 st = new DsymbolTable(); | |
| 2066 s = st->lookup(id); | |
| 2067 if (s) | |
| 2068 { | |
| 2069 fd = s->isFuncDeclaration(); | |
| 2070 assert(fd); | |
| 2071 assert(fd->type->nextOf()->equals(treturn)); | |
| 2072 } | |
| 2073 else | |
| 2074 { | |
|
378
d8234836b40f
Get rid of runTimeHack and instead add proper argument info to the frontend
Christian Kamm <kamm incasoftware de>
parents:
336
diff
changeset
|
2075 tf = new TypeFunction(args, treturn, 0, LINKc); |
| 159 | 2076 fd = new FuncDeclaration(0, 0, id, STCstatic, tf); |
| 2077 fd->protection = PROTpublic; | |
| 2078 fd->linkage = LINKc; | |
| 2079 | |
| 2080 st->insert(fd); | |
| 2081 } | |
| 2082 return fd; | |
| 2083 } | |
| 2084 | |
| 336 | 2085 const char *FuncDeclaration::kind() |
| 159 | 2086 { |
| 2087 return "function"; | |
| 2088 } | |
| 336 | 2089 |
| 159 | 2090 /******************************* |
| 2091 * Look at all the variables in this function that are referenced | |
| 2092 * by nested functions, and determine if a closure needs to be | |
| 2093 * created for them. | |
| 2094 */ | |
| 2095 | |
| 336 | 2096 #if DMDV2 |
| 159 | 2097 int FuncDeclaration::needsClosure() |
| 2098 { | |
| 2099 /* Need a closure for all the closureVars[] if any of the | |
| 2100 * closureVars[] are accessed by a | |
| 2101 * function that escapes the scope of this function. | |
| 2102 * We take the conservative approach and decide that any function that: | |
| 2103 * 1) is a virtual function | |
| 2104 * 2) has its address taken | |
| 2105 * 3) has a parent that escapes | |
| 336 | 2106 * |
| 2107 * Note that since a non-virtual function can be called by | |
| 2108 * a virtual one, if that non-virtual function accesses a closure | |
| 2109 * var, the closure still has to be taken. Hence, we check for isThis() | |
| 2110 * instead of isVirtual(). (thanks to David Friedman) | |
| 159 | 2111 */ |
| 2112 | |
| 2113 //printf("FuncDeclaration::needsClosure() %s\n", toChars()); | |
| 2114 for (int i = 0; i < closureVars.dim; i++) | |
| 2115 { VarDeclaration *v = (VarDeclaration *)closureVars.data[i]; | |
| 2116 assert(v->isVarDeclaration()); | |
| 2117 //printf("\tv = %s\n", v->toChars()); | |
| 2118 | |
| 2119 for (int j = 0; j < v->nestedrefs.dim; j++) | |
| 2120 { FuncDeclaration *f = (FuncDeclaration *)v->nestedrefs.data[j]; | |
| 2121 assert(f != this); | |
| 2122 | |
| 2123 //printf("\t\tf = %s, %d, %d\n", f->toChars(), f->isVirtual(), f->tookAddressOf); | |
| 336 | 2124 if (f->isThis() || f->tookAddressOf) |
| 159 | 2125 goto Lyes; // assume f escapes this function's scope |
| 2126 | |
| 2127 // Look to see if any parents of f that are below this escape | |
|
510
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
2128 for (Dsymbol *s = f->parent; s && s != this; s = s->parent) |
| 159 | 2129 { |
| 2130 f = s->isFuncDeclaration(); | |
| 336 | 2131 if (f && (f->isThis() || f->tookAddressOf)) |
| 159 | 2132 goto Lyes; |
| 2133 } | |
| 2134 } | |
| 2135 } | |
| 2136 return 0; | |
| 2137 | |
| 2138 Lyes: | |
| 2139 //printf("\tneeds closure\n"); | |
| 2140 return 1; | |
| 2141 } | |
| 2142 #endif | |
| 2143 | |
| 2144 /****************************** FuncAliasDeclaration ************************/ | |
| 2145 | |
| 2146 // Used as a way to import a set of functions from another scope into this one. | |
| 2147 | |
| 2148 FuncAliasDeclaration::FuncAliasDeclaration(FuncDeclaration *funcalias) | |
| 2149 : FuncDeclaration(funcalias->loc, funcalias->endloc, funcalias->ident, | |
| 2150 (enum STC)funcalias->storage_class, funcalias->type) | |
| 2151 { | |
| 2152 assert(funcalias != this); | |
| 2153 this->funcalias = funcalias; | |
| 2154 } | |
| 2155 | |
| 336 | 2156 const char *FuncAliasDeclaration::kind() |
| 159 | 2157 { |
| 2158 return "function alias"; | |
| 2159 } | |
| 2160 | |
| 2161 | |
| 2162 /****************************** FuncLiteralDeclaration ************************/ | |
| 2163 | |
| 2164 FuncLiteralDeclaration::FuncLiteralDeclaration(Loc loc, Loc endloc, Type *type, | |
| 2165 enum TOK tok, ForeachStatement *fes) | |
| 2166 : FuncDeclaration(loc, endloc, NULL, STCundefined, type) | |
| 2167 { | |
| 2168 char *id; | |
| 2169 | |
| 2170 if (fes) | |
| 2171 id = "__foreachbody"; | |
| 2172 else if (tok == TOKdelegate) | |
| 2173 id = "__dgliteral"; | |
| 2174 else | |
| 2175 id = "__funcliteral"; | |
| 2176 this->ident = Identifier::generateId(id); | |
| 2177 this->tok = tok; | |
| 2178 this->fes = fes; | |
| 2179 //printf("FuncLiteralDeclaration() id = '%s', type = '%s'\n", this->ident->toChars(), type->toChars()); | |
| 2180 } | |
| 2181 | |
| 2182 Dsymbol *FuncLiteralDeclaration::syntaxCopy(Dsymbol *s) | |
| 2183 { | |
| 2184 FuncLiteralDeclaration *f; | |
| 2185 | |
| 2186 //printf("FuncLiteralDeclaration::syntaxCopy('%s')\n", toChars()); | |
| 2187 if (s) | |
| 2188 f = (FuncLiteralDeclaration *)s; | |
| 2189 else | |
| 2190 f = new FuncLiteralDeclaration(loc, endloc, type->syntaxCopy(), tok, fes); | |
| 2191 FuncDeclaration::syntaxCopy(f); | |
| 2192 return f; | |
| 2193 } | |
| 2194 | |
| 2195 int FuncLiteralDeclaration::isNested() | |
| 2196 { | |
| 2197 //printf("FuncLiteralDeclaration::isNested() '%s'\n", toChars()); | |
| 2198 return (tok == TOKdelegate); | |
| 2199 } | |
| 2200 | |
| 336 | 2201 int FuncLiteralDeclaration::isVirtual() |
| 2202 { | |
| 2203 return FALSE; | |
| 2204 } | |
| 2205 | |
| 2206 const char *FuncLiteralDeclaration::kind() | |
| 159 | 2207 { |
| 2208 // GCC requires the (char*) casts | |
| 2209 return (tok == TOKdelegate) ? (char*)"delegate" : (char*)"function"; | |
| 2210 } | |
| 2211 | |
| 2212 void FuncLiteralDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2213 { | |
| 2214 static Identifier *idfunc; | |
| 2215 static Identifier *iddel; | |
| 2216 | |
| 2217 if (!idfunc) | |
| 2218 idfunc = new Identifier("function", 0); | |
| 2219 if (!iddel) | |
| 2220 iddel = new Identifier("delegate", 0); | |
| 2221 | |
| 2222 type->toCBuffer(buf, ((tok == TOKdelegate) ? iddel : idfunc), hgs); | |
| 2223 bodyToCBuffer(buf, hgs); | |
| 2224 } | |
| 2225 | |
| 2226 | |
| 2227 /********************************* CtorDeclaration ****************************/ | |
| 2228 | |
| 2229 CtorDeclaration::CtorDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs) | |
| 2230 : FuncDeclaration(loc, endloc, Id::ctor, STCundefined, NULL) | |
| 2231 { | |
| 2232 this->arguments = arguments; | |
| 2233 this->varargs = varargs; | |
|
510
6aee82889553
Merged DMD 1.034, array operations are not yet implemented ;)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
468
diff
changeset
|
2234 //printf("CtorDeclaration(loc = %s) %s\n", loc.toChars(), toChars()); |
| 159 | 2235 } |
| 2236 | |
| 2237 Dsymbol *CtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2238 { | |
| 2239 CtorDeclaration *f; | |
| 2240 | |
| 2241 f = new CtorDeclaration(loc, endloc, NULL, varargs); | |
| 2242 | |
| 2243 f->outId = outId; | |
| 2244 f->frequire = frequire ? frequire->syntaxCopy() : NULL; | |
| 2245 f->fensure = fensure ? fensure->syntaxCopy() : NULL; | |
| 2246 f->fbody = fbody ? fbody->syntaxCopy() : NULL; | |
| 2247 assert(!fthrows); // deprecated | |
| 2248 | |
| 2249 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2250 return f; | |
| 2251 } | |
| 2252 | |
| 2253 | |
| 2254 void CtorDeclaration::semantic(Scope *sc) | |
| 2255 { | |
| 2256 ClassDeclaration *cd; | |
| 2257 Type *tret; | |
| 2258 | |
| 2259 //printf("CtorDeclaration::semantic()\n"); | |
| 2260 if (type) | |
| 2261 return; | |
| 2262 | |
| 2263 sc = sc->push(); | |
| 2264 sc->stc &= ~STCstatic; // not a static constructor | |
| 2265 | |
| 2266 parent = sc->parent; | |
| 2267 Dsymbol *parent = toParent(); | |
| 2268 cd = parent->isClassDeclaration(); | |
| 2269 if (!cd) | |
| 2270 { | |
| 2271 error("constructors are only for class definitions"); | |
|
333
f7190d9eb70c
[svn r354] Fix the regressions between [346] and [353] by making constructors and destructors outside classes fatal errors.
ChristianK
parents:
305
diff
changeset
|
2272 fatal(); |
| 159 | 2273 tret = Type::tvoid; |
| 2274 } | |
| 2275 else | |
| 2276 tret = cd->type; //->referenceTo(); | |
| 2277 type = new TypeFunction(arguments, tret, varargs, LINKd); | |
| 336 | 2278 if (!originalType) |
| 2279 originalType = type; | |
| 159 | 2280 |
| 2281 sc->flags |= SCOPEctor; | |
| 2282 type = type->semantic(loc, sc); | |
| 2283 sc->flags &= ~SCOPEctor; | |
| 2284 | |
| 2285 // Append: | |
| 2286 // return this; | |
| 2287 // to the function body | |
| 2288 if (fbody) | |
| 2289 { Expression *e; | |
| 2290 Statement *s; | |
| 2291 | |
| 2292 e = new ThisExp(0); | |
| 2293 s = new ReturnStatement(0, e); | |
| 2294 fbody = new CompoundStatement(0, fbody, s); | |
| 2295 } | |
| 2296 | |
| 2297 FuncDeclaration::semantic(sc); | |
| 2298 | |
| 2299 sc->pop(); | |
| 2300 | |
| 2301 // See if it's the default constructor | |
| 2302 if (cd && varargs == 0 && Argument::dim(arguments) == 0) | |
| 2303 cd->defaultCtor = this; | |
| 2304 } | |
| 2305 | |
| 336 | 2306 const char *CtorDeclaration::kind() |
| 159 | 2307 { |
| 2308 return "constructor"; | |
| 2309 } | |
| 2310 | |
| 2311 char *CtorDeclaration::toChars() | |
| 2312 { | |
| 2313 return "this"; | |
| 2314 } | |
| 2315 | |
| 2316 int CtorDeclaration::isVirtual() | |
| 2317 { | |
| 2318 return FALSE; | |
| 2319 } | |
| 2320 | |
| 2321 int CtorDeclaration::addPreInvariant() | |
| 2322 { | |
| 2323 return FALSE; | |
| 2324 } | |
| 2325 | |
| 2326 int CtorDeclaration::addPostInvariant() | |
| 2327 { | |
| 2328 return (vthis && global.params.useInvariants); | |
| 2329 } | |
| 2330 | |
| 2331 | |
| 2332 void CtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2333 { | |
| 2334 buf->writestring("this"); | |
| 2335 Argument::argsToCBuffer(buf, hgs, arguments, varargs); | |
| 2336 bodyToCBuffer(buf, hgs); | |
| 2337 } | |
| 2338 | |
| 2339 /********************************* DtorDeclaration ****************************/ | |
| 2340 | |
| 2341 DtorDeclaration::DtorDeclaration(Loc loc, Loc endloc) | |
| 2342 : FuncDeclaration(loc, endloc, Id::dtor, STCundefined, NULL) | |
| 2343 { | |
| 2344 } | |
| 2345 | |
| 2346 DtorDeclaration::DtorDeclaration(Loc loc, Loc endloc, Identifier *id) | |
| 2347 : FuncDeclaration(loc, endloc, id, STCundefined, NULL) | |
| 2348 { | |
| 2349 } | |
| 2350 | |
| 2351 Dsymbol *DtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2352 { | |
| 2353 assert(!s); | |
| 2354 DtorDeclaration *dd = new DtorDeclaration(loc, endloc, ident); | |
| 2355 return FuncDeclaration::syntaxCopy(dd); | |
| 2356 } | |
| 2357 | |
| 2358 | |
| 2359 void DtorDeclaration::semantic(Scope *sc) | |
| 2360 { | |
| 2361 ClassDeclaration *cd; | |
| 2362 | |
| 2363 parent = sc->parent; | |
| 2364 Dsymbol *parent = toParent(); | |
| 2365 cd = parent->isClassDeclaration(); | |
| 2366 if (!cd) | |
| 2367 { | |
| 2368 error("destructors only are for class definitions"); | |
|
333
f7190d9eb70c
[svn r354] Fix the regressions between [346] and [353] by making constructors and destructors outside classes fatal errors.
ChristianK
parents:
305
diff
changeset
|
2369 fatal(); |
| 159 | 2370 } |
| 2371 else | |
| 2372 cd->dtors.push(this); | |
| 2373 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2374 | |
| 2375 sc = sc->push(); | |
| 2376 sc->stc &= ~STCstatic; // not a static destructor | |
| 2377 sc->linkage = LINKd; | |
| 2378 | |
| 2379 FuncDeclaration::semantic(sc); | |
| 2380 | |
| 2381 sc->pop(); | |
| 2382 } | |
| 2383 | |
| 2384 int DtorDeclaration::overloadInsert(Dsymbol *s) | |
| 2385 { | |
| 2386 return FALSE; // cannot overload destructors | |
| 2387 } | |
| 2388 | |
| 2389 int DtorDeclaration::addPreInvariant() | |
| 2390 { | |
| 2391 return (vthis && global.params.useInvariants); | |
| 2392 } | |
| 2393 | |
| 2394 int DtorDeclaration::addPostInvariant() | |
| 2395 { | |
| 2396 return FALSE; | |
| 2397 } | |
| 2398 | |
| 2399 int DtorDeclaration::isVirtual() | |
| 2400 { | |
| 2401 /* This should be FALSE so that dtor's don't get put into the vtbl[], | |
| 2402 * but doing so will require recompiling everything. | |
| 2403 */ | |
| 2404 #if BREAKABI | |
| 2405 return FALSE; | |
| 2406 #else | |
| 2407 return FuncDeclaration::isVirtual(); | |
| 2408 #endif | |
| 2409 } | |
| 2410 | |
| 2411 void DtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2412 { | |
| 2413 if (hgs->hdrgen) | |
| 2414 return; | |
| 2415 buf->writestring("~this()"); | |
| 2416 bodyToCBuffer(buf, hgs); | |
| 2417 } | |
| 2418 | |
| 2419 /********************************* StaticCtorDeclaration ****************************/ | |
| 2420 | |
| 2421 StaticCtorDeclaration::StaticCtorDeclaration(Loc loc, Loc endloc) | |
| 2422 : FuncDeclaration(loc, endloc, | |
|
957
31bbc7f3b817
Backed out changeset [369996c08420].
Christian Kamm <kamm incasoftware de>
parents:
956
diff
changeset
|
2423 Identifier::generateId("_staticCtor"), STCstatic, NULL) |
| 159 | 2424 { |
| 2425 } | |
| 2426 | |
| 2427 Dsymbol *StaticCtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2428 { | |
| 2429 StaticCtorDeclaration *scd; | |
| 2430 | |
| 2431 assert(!s); | |
| 2432 scd = new StaticCtorDeclaration(loc, endloc); | |
| 2433 return FuncDeclaration::syntaxCopy(scd); | |
| 2434 } | |
| 2435 | |
| 2436 | |
| 2437 void StaticCtorDeclaration::semantic(Scope *sc) | |
| 2438 { | |
| 2439 //printf("StaticCtorDeclaration::semantic()\n"); | |
| 2440 | |
| 2441 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2442 | |
| 336 | 2443 /* If the static ctor appears within a template instantiation, |
| 2444 * it could get called multiple times by the module constructors | |
| 2445 * for different modules. Thus, protect it with a gate. | |
| 2446 */ | |
| 2447 if (inTemplateInstance()) | |
| 2448 { | |
| 2449 /* Add this prefix to the function: | |
| 2450 * static int gate; | |
| 2451 * if (++gate != 1) return; | |
| 2452 * Note that this is not thread safe; should not have threads | |
| 2453 * during static construction. | |
| 2454 */ | |
| 2455 Identifier *id = Lexer::idPool("__gate"); | |
| 2456 VarDeclaration *v = new VarDeclaration(0, Type::tint32, id, NULL); | |
| 2457 v->storage_class = STCstatic; | |
| 2458 Statements *sa = new Statements(); | |
| 2459 Statement *s = new DeclarationStatement(0, v); | |
| 2460 sa->push(s); | |
| 2461 Expression *e = new IdentifierExp(0, id); | |
| 2462 e = new AddAssignExp(0, e, new IntegerExp(1)); | |
| 2463 e = new EqualExp(TOKnotequal, 0, e, new IntegerExp(1)); | |
| 2464 s = new IfStatement(0, NULL, e, new ReturnStatement(0, NULL), NULL); | |
| 2465 sa->push(s); | |
| 2466 if (fbody) | |
| 2467 sa->push(fbody); | |
| 2468 fbody = new CompoundStatement(0, sa); | |
| 2469 } | |
| 2470 | |
| 159 | 2471 FuncDeclaration::semantic(sc); |
| 2472 | |
| 2473 // We're going to need ModuleInfo | |
| 2474 Module *m = getModule(); | |
| 2475 if (!m) | |
| 2476 m = sc->module; | |
| 2477 if (m) | |
| 2478 { m->needmoduleinfo = 1; | |
| 2479 #ifdef IN_GCC | |
| 2480 m->strictlyneedmoduleinfo = 1; | |
| 2481 #endif | |
| 2482 } | |
| 2483 } | |
| 2484 | |
| 2485 AggregateDeclaration *StaticCtorDeclaration::isThis() | |
| 2486 { | |
| 2487 return NULL; | |
| 2488 } | |
| 2489 | |
| 2490 int StaticCtorDeclaration::isStaticConstructor() | |
| 2491 { | |
| 2492 return TRUE; | |
| 2493 } | |
| 2494 | |
| 2495 int StaticCtorDeclaration::isVirtual() | |
| 2496 { | |
| 2497 return FALSE; | |
| 2498 } | |
| 2499 | |
| 2500 int StaticCtorDeclaration::addPreInvariant() | |
| 2501 { | |
| 2502 return FALSE; | |
| 2503 } | |
| 2504 | |
| 2505 int StaticCtorDeclaration::addPostInvariant() | |
| 2506 { | |
| 2507 return FALSE; | |
| 2508 } | |
| 2509 | |
| 2510 void StaticCtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2511 { | |
| 2512 if (hgs->hdrgen) | |
| 2513 { buf->writestring("static this();\n"); | |
| 2514 return; | |
| 2515 } | |
| 2516 buf->writestring("static this()"); | |
| 2517 bodyToCBuffer(buf, hgs); | |
| 2518 } | |
| 2519 | |
| 2520 /********************************* StaticDtorDeclaration ****************************/ | |
| 2521 | |
| 2522 StaticDtorDeclaration::StaticDtorDeclaration(Loc loc, Loc endloc) | |
| 2523 : FuncDeclaration(loc, endloc, | |
|
957
31bbc7f3b817
Backed out changeset [369996c08420].
Christian Kamm <kamm incasoftware de>
parents:
956
diff
changeset
|
2524 Identifier::generateId("_staticDtor"), STCstatic, NULL) |
| 159 | 2525 { |
| 336 | 2526 vgate = NULL; |
| 159 | 2527 } |
| 2528 | |
| 2529 Dsymbol *StaticDtorDeclaration::syntaxCopy(Dsymbol *s) | |
| 2530 { | |
| 2531 StaticDtorDeclaration *sdd; | |
| 2532 | |
| 2533 assert(!s); | |
| 2534 sdd = new StaticDtorDeclaration(loc, endloc); | |
| 2535 return FuncDeclaration::syntaxCopy(sdd); | |
| 2536 } | |
| 2537 | |
| 2538 | |
| 2539 void StaticDtorDeclaration::semantic(Scope *sc) | |
| 2540 { | |
| 2541 ClassDeclaration *cd; | |
| 2542 Type *tret; | |
| 2543 | |
| 2544 cd = sc->scopesym->isClassDeclaration(); | |
| 2545 if (!cd) | |
| 2546 { | |
| 2547 } | |
| 2548 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2549 | |
| 336 | 2550 /* If the static ctor appears within a template instantiation, |
| 2551 * it could get called multiple times by the module constructors | |
| 2552 * for different modules. Thus, protect it with a gate. | |
| 2553 */ | |
| 2554 if (inTemplateInstance()) | |
| 2555 { | |
| 2556 /* Add this prefix to the function: | |
| 2557 * static int gate; | |
| 2558 * if (--gate != 0) return; | |
| 2559 * Increment gate during constructor execution. | |
| 2560 * Note that this is not thread safe; should not have threads | |
| 2561 * during static destruction. | |
| 2562 */ | |
| 2563 Identifier *id = Lexer::idPool("__gate"); | |
| 2564 VarDeclaration *v = new VarDeclaration(0, Type::tint32, id, NULL); | |
| 2565 v->storage_class = STCstatic; | |
| 2566 Statements *sa = new Statements(); | |
| 2567 Statement *s = new DeclarationStatement(0, v); | |
| 2568 sa->push(s); | |
| 2569 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
|
2570 e = new AddAssignExp(0, e, new IntegerExp((uint64_t)-1)); |
|
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
644
diff
changeset
|
2571 e = new EqualExp(TOKnotequal, 0, e, new IntegerExp(0)); |
| 336 | 2572 s = new IfStatement(0, NULL, e, new ReturnStatement(0, NULL), NULL); |
| 2573 sa->push(s); | |
| 2574 if (fbody) | |
| 2575 sa->push(fbody); | |
| 2576 fbody = new CompoundStatement(0, sa); | |
| 2577 vgate = v; | |
| 2578 } | |
| 2579 | |
| 159 | 2580 FuncDeclaration::semantic(sc); |
| 2581 | |
| 2582 // We're going to need ModuleInfo | |
| 2583 Module *m = getModule(); | |
| 2584 if (!m) | |
| 2585 m = sc->module; | |
| 2586 if (m) | |
| 2587 { m->needmoduleinfo = 1; | |
| 2588 #ifdef IN_GCC | |
| 2589 m->strictlyneedmoduleinfo = 1; | |
| 2590 #endif | |
| 2591 } | |
| 2592 } | |
| 2593 | |
| 2594 AggregateDeclaration *StaticDtorDeclaration::isThis() | |
| 2595 { | |
| 2596 return NULL; | |
| 2597 } | |
| 2598 | |
| 2599 int StaticDtorDeclaration::isStaticDestructor() | |
| 2600 { | |
| 2601 return TRUE; | |
| 2602 } | |
| 2603 | |
| 2604 int StaticDtorDeclaration::isVirtual() | |
| 2605 { | |
| 2606 return FALSE; | |
| 2607 } | |
| 2608 | |
| 2609 int StaticDtorDeclaration::addPreInvariant() | |
| 2610 { | |
| 2611 return FALSE; | |
| 2612 } | |
| 2613 | |
| 2614 int StaticDtorDeclaration::addPostInvariant() | |
| 2615 { | |
| 2616 return FALSE; | |
| 2617 } | |
| 2618 | |
| 2619 void StaticDtorDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2620 { | |
| 2621 if (hgs->hdrgen) | |
| 2622 return; | |
| 2623 buf->writestring("static ~this()"); | |
| 2624 bodyToCBuffer(buf, hgs); | |
| 2625 } | |
| 2626 | |
| 2627 /********************************* InvariantDeclaration ****************************/ | |
| 2628 | |
| 2629 InvariantDeclaration::InvariantDeclaration(Loc loc, Loc endloc) | |
| 2630 : FuncDeclaration(loc, endloc, Id::classInvariant, STCundefined, NULL) | |
| 2631 { | |
| 2632 } | |
| 2633 | |
| 2634 Dsymbol *InvariantDeclaration::syntaxCopy(Dsymbol *s) | |
| 2635 { | |
| 2636 InvariantDeclaration *id; | |
| 2637 | |
| 2638 assert(!s); | |
| 2639 id = new InvariantDeclaration(loc, endloc); | |
| 2640 FuncDeclaration::syntaxCopy(id); | |
| 2641 return id; | |
| 2642 } | |
| 2643 | |
| 2644 | |
| 2645 void InvariantDeclaration::semantic(Scope *sc) | |
| 2646 { | |
| 2647 AggregateDeclaration *ad; | |
| 2648 Type *tret; | |
| 2649 | |
| 2650 parent = sc->parent; | |
| 2651 Dsymbol *parent = toParent(); | |
| 2652 ad = parent->isAggregateDeclaration(); | |
| 2653 if (!ad) | |
| 2654 { | |
| 2655 error("invariants only are for struct/union/class definitions"); | |
| 2656 return; | |
| 2657 } | |
| 2658 else if (ad->inv && ad->inv != this) | |
| 2659 { | |
| 2660 error("more than one invariant for %s", ad->toChars()); | |
| 2661 } | |
| 2662 ad->inv = this; | |
| 2663 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
| 2664 | |
| 2665 sc = sc->push(); | |
| 2666 sc->stc &= ~STCstatic; // not a static invariant | |
| 2667 sc->incontract++; | |
| 2668 sc->linkage = LINKd; | |
| 2669 | |
| 2670 FuncDeclaration::semantic(sc); | |
| 2671 | |
| 2672 sc->pop(); | |
| 2673 } | |
| 2674 | |
| 2675 int InvariantDeclaration::isVirtual() | |
| 2676 { | |
| 2677 return FALSE; | |
| 2678 } | |
| 2679 | |
| 2680 int InvariantDeclaration::addPreInvariant() | |
| 2681 { | |
| 2682 return FALSE; | |
| 2683 } | |
| 2684 | |
| 2685 int InvariantDeclaration::addPostInvariant() | |
| 2686 { | |
| 2687 return FALSE; | |
| 2688 } | |
| 2689 | |
| 2690 void InvariantDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2691 { | |
| 2692 if (hgs->hdrgen) | |
| 2693 return; | |
| 2694 buf->writestring("invariant"); | |
| 2695 bodyToCBuffer(buf, hgs); | |
| 2696 } | |
| 2697 | |
| 2698 | |
| 2699 /********************************* UnitTestDeclaration ****************************/ | |
| 2700 | |
| 2701 /******************************* | |
| 2702 * Generate unique unittest function Id so we can have multiple | |
| 2703 * instances per module. | |
| 2704 */ | |
| 2705 | |
| 2706 static Identifier *unitTestId() | |
| 2707 { | |
| 336 | 2708 return Lexer::uniqueId("__unittest"); |
| 159 | 2709 } |
| 2710 | |
| 2711 UnitTestDeclaration::UnitTestDeclaration(Loc loc, Loc endloc) | |
| 2712 : FuncDeclaration(loc, endloc, unitTestId(), STCundefined, NULL) | |
| 2713 { | |
| 2714 } | |
| 2715 | |
| 2716 Dsymbol *UnitTestDeclaration::syntaxCopy(Dsymbol *s) | |
| 2717 { | |
| 2718 UnitTestDeclaration *utd; | |
| 2719 | |
| 2720 assert(!s); | |
| 2721 utd = new UnitTestDeclaration(loc, endloc); | |
| 2722 return FuncDeclaration::syntaxCopy(utd); | |
| 2723 } | |
| 2724 | |
| 2725 | |
| 2726 void UnitTestDeclaration::semantic(Scope *sc) | |
| 2727 { | |
| 2728 if (global.params.useUnitTests) | |
| 2729 { | |
| 2730 type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd); | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
2731 Scope *sc2 = sc->push(); |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
2732 sc2->linkage = LINKd; |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
2733 FuncDeclaration::semantic(sc2); |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
2734 sc2->pop(); |
| 159 | 2735 } |
| 2736 | |
| 2737 // We're going to need ModuleInfo even if the unit tests are not | |
| 2738 // compiled in, because other modules may import this module and refer | |
| 2739 // to this ModuleInfo. | |
| 2740 Module *m = getModule(); | |
| 2741 if (!m) | |
| 2742 m = sc->module; | |
| 2743 if (m) | |
| 2744 m->needmoduleinfo = 1; | |
| 2745 } | |
| 2746 | |
| 2747 AggregateDeclaration *UnitTestDeclaration::isThis() | |
| 2748 { | |
| 2749 return NULL; | |
| 2750 } | |
| 2751 | |
| 2752 int UnitTestDeclaration::isVirtual() | |
| 2753 { | |
| 2754 return FALSE; | |
| 2755 } | |
| 2756 | |
| 2757 int UnitTestDeclaration::addPreInvariant() | |
| 2758 { | |
| 2759 return FALSE; | |
| 2760 } | |
| 2761 | |
| 2762 int UnitTestDeclaration::addPostInvariant() | |
| 2763 { | |
| 2764 return FALSE; | |
| 2765 } | |
| 2766 | |
| 2767 void UnitTestDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2768 { | |
| 2769 if (hgs->hdrgen) | |
| 2770 return; | |
| 2771 buf->writestring("unittest"); | |
| 2772 bodyToCBuffer(buf, hgs); | |
| 2773 } | |
| 2774 | |
| 2775 /********************************* NewDeclaration ****************************/ | |
| 2776 | |
| 2777 NewDeclaration::NewDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs) | |
| 2778 : FuncDeclaration(loc, endloc, Id::classNew, STCstatic, NULL) | |
| 2779 { | |
| 2780 this->arguments = arguments; | |
| 2781 this->varargs = varargs; | |
| 2782 } | |
| 2783 | |
| 2784 Dsymbol *NewDeclaration::syntaxCopy(Dsymbol *s) | |
| 2785 { | |
| 2786 NewDeclaration *f; | |
| 2787 | |
| 2788 f = new NewDeclaration(loc, endloc, NULL, varargs); | |
| 2789 | |
| 2790 FuncDeclaration::syntaxCopy(f); | |
| 2791 | |
| 2792 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2793 | |
| 2794 return f; | |
| 2795 } | |
| 2796 | |
| 2797 | |
| 2798 void NewDeclaration::semantic(Scope *sc) | |
| 2799 { | |
| 2800 ClassDeclaration *cd; | |
| 2801 Type *tret; | |
| 2802 | |
| 2803 //printf("NewDeclaration::semantic()\n"); | |
| 2804 | |
| 2805 parent = sc->parent; | |
| 2806 Dsymbol *parent = toParent(); | |
| 2807 cd = parent->isClassDeclaration(); | |
| 2808 if (!cd && !parent->isStructDeclaration()) | |
| 2809 { | |
| 2810 error("new allocators only are for class or struct definitions"); | |
| 2811 } | |
| 2812 tret = Type::tvoid->pointerTo(); | |
| 2813 type = new TypeFunction(arguments, tret, varargs, LINKd); | |
| 2814 | |
| 2815 type = type->semantic(loc, sc); | |
| 2816 assert(type->ty == Tfunction); | |
| 2817 | |
| 2818 // Check that there is at least one argument of type uint | |
| 2819 TypeFunction *tf = (TypeFunction *)type; | |
| 2820 if (Argument::dim(tf->parameters) < 1) | |
| 2821 { | |
|
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
|
2822 error("at least one argument of type size_t expected"); |
| 159 | 2823 } |
| 2824 else | |
| 2825 { | |
| 2826 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
|
2827 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
|
2828 error("first argument must be type size_t, not %s", a->type->toChars()); |
| 159 | 2829 } |
| 2830 | |
| 2831 FuncDeclaration::semantic(sc); | |
| 2832 } | |
| 2833 | |
| 336 | 2834 const char *NewDeclaration::kind() |
| 159 | 2835 { |
| 2836 return "allocator"; | |
| 2837 } | |
| 2838 | |
| 2839 int NewDeclaration::isVirtual() | |
| 2840 { | |
| 2841 return FALSE; | |
| 2842 } | |
| 2843 | |
| 2844 int NewDeclaration::addPreInvariant() | |
| 2845 { | |
| 2846 return FALSE; | |
| 2847 } | |
| 2848 | |
| 2849 int NewDeclaration::addPostInvariant() | |
| 2850 { | |
| 2851 return FALSE; | |
| 2852 } | |
| 2853 | |
| 2854 void NewDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2855 { | |
| 2856 buf->writestring("new"); | |
| 2857 Argument::argsToCBuffer(buf, hgs, arguments, varargs); | |
| 2858 bodyToCBuffer(buf, hgs); | |
| 2859 } | |
| 2860 | |
| 2861 | |
| 2862 /********************************* DeleteDeclaration ****************************/ | |
| 2863 | |
| 2864 DeleteDeclaration::DeleteDeclaration(Loc loc, Loc endloc, Arguments *arguments) | |
| 2865 : FuncDeclaration(loc, endloc, Id::classDelete, STCstatic, NULL) | |
| 2866 { | |
| 2867 this->arguments = arguments; | |
| 2868 } | |
| 2869 | |
| 2870 Dsymbol *DeleteDeclaration::syntaxCopy(Dsymbol *s) | |
| 2871 { | |
| 2872 DeleteDeclaration *f; | |
| 2873 | |
| 2874 f = new DeleteDeclaration(loc, endloc, NULL); | |
| 2875 | |
| 2876 FuncDeclaration::syntaxCopy(f); | |
| 2877 | |
| 2878 f->arguments = Argument::arraySyntaxCopy(arguments); | |
| 2879 | |
| 2880 return f; | |
| 2881 } | |
| 2882 | |
| 2883 | |
| 2884 void DeleteDeclaration::semantic(Scope *sc) | |
| 2885 { | |
| 2886 ClassDeclaration *cd; | |
| 2887 | |
| 2888 //printf("DeleteDeclaration::semantic()\n"); | |
| 2889 | |
| 2890 parent = sc->parent; | |
| 2891 Dsymbol *parent = toParent(); | |
| 2892 cd = parent->isClassDeclaration(); | |
| 2893 if (!cd && !parent->isStructDeclaration()) | |
| 2894 { | |
| 2895 error("new allocators only are for class or struct definitions"); | |
| 2896 } | |
| 2897 type = new TypeFunction(arguments, Type::tvoid, 0, LINKd); | |
| 2898 | |
| 2899 type = type->semantic(loc, sc); | |
| 2900 assert(type->ty == Tfunction); | |
| 2901 | |
| 2902 // Check that there is only one argument of type void* | |
| 2903 TypeFunction *tf = (TypeFunction *)type; | |
| 2904 if (Argument::dim(tf->parameters) != 1) | |
| 2905 { | |
| 2906 error("one argument of type void* expected"); | |
| 2907 } | |
| 2908 else | |
| 2909 { | |
| 2910 Argument *a = Argument::getNth(tf->parameters, 0); | |
| 2911 if (!a->type->equals(Type::tvoid->pointerTo())) | |
| 2912 error("one argument of type void* expected, not %s", a->type->toChars()); | |
| 2913 } | |
| 2914 | |
| 2915 FuncDeclaration::semantic(sc); | |
| 2916 } | |
| 2917 | |
| 336 | 2918 const char *DeleteDeclaration::kind() |
| 159 | 2919 { |
| 2920 return "deallocator"; | |
| 2921 } | |
| 2922 | |
| 2923 int DeleteDeclaration::isDelete() | |
| 2924 { | |
| 2925 return TRUE; | |
| 2926 } | |
| 2927 | |
| 2928 int DeleteDeclaration::isVirtual() | |
| 2929 { | |
| 2930 return FALSE; | |
| 2931 } | |
| 2932 | |
| 2933 int DeleteDeclaration::addPreInvariant() | |
| 2934 { | |
| 2935 return FALSE; | |
| 2936 } | |
| 2937 | |
| 2938 int DeleteDeclaration::addPostInvariant() | |
| 2939 { | |
| 2940 return FALSE; | |
| 2941 } | |
| 2942 | |
| 2943 void DeleteDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2944 { | |
| 2945 buf->writestring("delete"); | |
| 2946 Argument::argsToCBuffer(buf, hgs, arguments, 0); | |
| 2947 bodyToCBuffer(buf, hgs); | |
| 2948 } | |
| 2949 | |
| 2950 | |
| 2951 | |
| 2952 |