Mercurial > projects > ddmd
annotate dmd/FuncDeclaration.d @ 135:af1bebfd96a4 dmd2037
dmd 2.038
| author | Eldar Insafutdinov <e.insafutdinov@gmail.com> |
|---|---|
| date | Mon, 13 Sep 2010 22:19:42 +0100 |
| parents | 206db751bd4c |
| children | bc45b1c53019 |
| rev | line source |
|---|---|
| 0 | 1 module dmd.FuncDeclaration; |
| 2 | |
| 114 | 3 import dmd.common; |
| 0 | 4 import dmd.Declaration; |
| 5 import dmd.DotIdExp; | |
| 63 | 6 import dmd.AddrExp; |
| 0 | 7 import dmd.TryFinallyStatement; |
| 73 | 8 import dmd.TryCatchStatement; |
| 9 import dmd.Catch; | |
| 10 import dmd.DeclarationStatement; | |
| 0 | 11 import dmd.StaticDtorDeclaration; |
| 63 | 12 import dmd.GlobalExpressions; |
| 0 | 13 import dmd.PeelStatement; |
| 14 import dmd.SynchronizedStatement; | |
| 15 import dmd.TOK; | |
| 16 import dmd.SymOffExp; | |
| 17 import dmd.AssignExp; | |
| 18 import dmd.ExpInitializer; | |
| 19 import dmd.BE; | |
| 20 import dmd.Id; | |
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21 import dmd.StorageClassDeclaration; |
| 0 | 22 import dmd.StringExp; |
| 23 import dmd.DsymbolExp; | |
| 24 import dmd.HaltExp; | |
| 25 import dmd.CommaExp; | |
| 26 import dmd.ReturnStatement; | |
| 27 import dmd.IntegerExp; | |
| 28 import dmd.ExpStatement; | |
| 29 import dmd.CSX; | |
| 30 import dmd.CompoundStatement; | |
| 31 import dmd.LabelStatement; | |
| 32 import dmd.ThisExp; | |
| 33 import dmd.SuperExp; | |
| 34 import dmd.IdentifierExp; | |
| 35 import dmd.AssertExp; | |
| 36 import dmd.CallExp; | |
| 37 import dmd.RET; | |
| 38 import dmd.VarExp; | |
| 39 import dmd.TupleDeclaration; | |
| 40 import dmd.ThisDeclaration; | |
| 41 import dmd.TypeTuple; | |
| 42 import dmd.TemplateInstance; | |
| 43 import dmd.ScopeDsymbol; | |
| 44 import dmd.AliasDeclaration; | |
| 45 import dmd.MOD; | |
| 46 import dmd.PROT; | |
| 47 import dmd.Lexer; | |
| 48 import dmd.LINK; | |
| 49 import dmd.CtorDeclaration; | |
| 50 import dmd.Global; | |
| 51 import dmd.DtorDeclaration; | |
| 52 import dmd.InvariantDeclaration; | |
| 53 import dmd.TY; | |
| 54 import dmd.PtrExp; | |
| 55 import dmd.DeclarationExp; | |
| 56 import dmd.InlineDoState; | |
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57 import dmd.Parameter; |
| 0 | 58 import dmd.StructDeclaration; |
| 59 import dmd.ClassDeclaration; | |
| 60 import dmd.InterfaceDeclaration; | |
| 61 import dmd.Array; | |
| 62 import dmd.Statement; | |
| 63 import dmd.Identifier; | |
| 64 import dmd.VarDeclaration; | |
| 65 import dmd.LabelDsymbol; | |
| 66 import dmd.DsymbolTable; | |
| 67 import dmd.ArrayTypes; | |
| 68 import dmd.Loc; | |
| 69 import dmd.ILS; | |
| 70 import dmd.ForeachStatement; | |
| 71 import dmd.Type; | |
| 72 import dmd.BUILTIN; | |
| 73 import dmd.TypeFunction; | |
| 74 import dmd.Expression; | |
| 75 import dmd.STC; | |
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76 import dmd.TRUST; |
| 0 | 77 import dmd.Dsymbol; |
| 78 import dmd.Scope; | |
| 79 import dmd.OutBuffer; | |
| 80 import dmd.HdrGenState; | |
| 81 import dmd.MATCH; | |
| 82 import dmd.AggregateDeclaration; | |
| 83 import dmd.InterState; | |
| 84 import dmd.InlineScanState; | |
| 85 import dmd.IRState; | |
| 86 import dmd.Util; | |
| 87 import dmd.BaseClass; | |
| 88 import dmd.Module; | |
| 89 import dmd.InlineCostState; | |
| 90 | |
| 91 import dmd.expression.Util; | |
| 92 | |
| 93 import dmd.declaration.Match; | |
| 94 | |
| 95 import dmd.backend.Symbol; | |
| 96 import dmd.backend.func_t; | |
| 97 import dmd.backend.Util; | |
| 98 import dmd.backend.glue; | |
| 99 import dmd.backend.SC; | |
| 100 import dmd.backend.F; | |
| 101 import dmd.backend.Cstate; | |
| 102 import dmd.backend.TYM; | |
| 103 import dmd.backend.OPER; | |
| 104 import dmd.backend.TYFL; | |
| 105 import dmd.backend.TYPE; | |
| 106 import dmd.backend.SFL; | |
| 107 import dmd.backend.mTY; | |
| 108 import dmd.backend.FL; | |
| 109 import dmd.backend.REG; | |
| 110 import dmd.backend.block; | |
| 111 import dmd.backend.Blockx; | |
| 112 import dmd.backend.Config; | |
| 113 import dmd.backend.BC; | |
| 114 import dmd.backend.elem; | |
| 115 import dmd.backend.targ_types; | |
| 116 import dmd.backend.mTYman; | |
| 117 import dmd.backend.RTLSYM; | |
| 118 import dmd.backend.LIST; | |
| 119 | |
| 120 import core.stdc.stdio; | |
| 121 import core.stdc.string; | |
| 63 | 122 version (Bug4054) import core.memory; |
| 123 | |
| 72 | 124 import dmd.interpret.Util; |
| 0 | 125 |
| 126 import std.string; | |
| 127 | |
| 128 class FuncDeclaration : Declaration | |
| 129 { | |
| 130 Array fthrows; // Array of Type's of exceptions (not used) | |
| 131 Statement frequire; | |
| 132 Statement fensure; | |
| 133 Statement fbody; | |
| 73 | 134 |
| 135 FuncDeclarations foverrides; // functions this function overrides | |
| 136 FuncDeclaration fdrequire; // function that does the in contract | |
| 137 FuncDeclaration fdensure; // function that does the out contract | |
| 0 | 138 |
| 139 Identifier outId; // identifier for out statement | |
| 140 VarDeclaration vresult; // variable corresponding to outId | |
| 141 LabelDsymbol returnLabel; // where the return goes | |
| 142 | |
| 143 DsymbolTable localsymtab; // used to prevent symbols in different | |
| 144 // scopes from having the same name | |
| 145 VarDeclaration vthis; // 'this' parameter (member and nested) | |
| 146 VarDeclaration v_arguments; // '_arguments' parameter | |
| 147 version (IN_GCC) { | |
| 148 VarDeclaration v_argptr; // '_argptr' variable | |
| 149 } | |
| 150 Dsymbols parameters; // Array of VarDeclaration's for parameters | |
| 151 DsymbolTable labtab; // statement label symbol table | |
| 152 Declaration overnext; // next in overload list | |
| 153 Loc endloc; // location of closing curly bracket | |
| 73 | 154 int vtblIndex; // for member functions, index into vtbl[] |
| 0 | 155 int naked; // !=0 if naked |
| 156 int inlineAsm; // !=0 if has inline assembler | |
| 73 | 157 ILS inlineStatus; |
| 0 | 158 int inlineNest; // !=0 if nested inline |
| 159 int cantInterpret; // !=0 if cannot interpret function | |
| 160 int semanticRun; // 1 semantic() run | |
| 161 // 2 semantic2() run | |
| 162 // 3 semantic3() started | |
| 163 // 4 semantic3() done | |
| 164 // 5 toObjFile() run | |
| 165 // this function's frame ptr | |
| 166 ForeachStatement fes; // if foreach body, this is the foreach | |
| 167 int introducing; // !=0 if 'introducing' function | |
| 168 Type tintro; // if !=null, then this is the type | |
| 169 // of the 'introducing' function | |
| 170 // this one is overriding | |
| 171 int inferRetType; // !=0 if return type is to be inferred | |
| 172 | |
| 173 // Things that should really go into Scope | |
| 174 int hasReturnExp; // 1 if there's a return exp; statement | |
| 175 // 2 if there's a throw statement | |
| 176 // 4 if there's an assert(0) | |
| 177 // 8 if there's inline asm | |
| 178 | |
| 179 // Support for NRVO (named return value optimization) | |
| 180 bool nrvo_can = true; // !=0 means we can do it | |
| 181 VarDeclaration nrvo_var; // variable to replace with shidden | |
| 182 Symbol* shidden; // hidden pointer passed to function | |
| 183 | |
| 184 version (DMDV2) { | |
| 185 BUILTIN builtin; // set if this is a known, builtin | |
| 186 // function we can evaluate at compile | |
| 187 // time | |
| 188 | |
| 189 int tookAddressOf; // set if someone took the address of | |
| 190 // this function | |
| 191 Dsymbols closureVars; // local variables in this function | |
| 192 // which are referenced by nested | |
| 193 // functions | |
| 194 } else { | |
| 195 int nestedFrameRef; // !=0 if nested variables referenced | |
| 196 } | |
| 197 | |
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198 this(Loc loc, Loc endloc, Identifier id, StorageClass storage_class, Type type) |
| 0 | 199 { |
| 200 super(id); | |
| 201 | |
| 202 //printf("FuncDeclaration(id = '%s', type = %p)\n", id.toChars(), type); | |
| 203 //printf("storage_class = x%x\n", storage_class); | |
| 204 this.storage_class = storage_class; | |
| 205 this.type = type; | |
| 206 this.loc = loc; | |
| 207 this.endloc = endloc; | |
| 73 | 208 fthrows = null; |
| 209 frequire = null; | |
| 210 fdrequire = null; | |
| 211 fdensure = null; | |
| 212 outId = null; | |
| 213 vresult = null; | |
| 214 returnLabel = null; | |
| 215 fensure = null; | |
| 216 fbody = null; | |
| 217 localsymtab = null; | |
| 218 vthis = null; | |
| 219 v_arguments = null; | |
| 220 version (IN_GCC) { | |
| 221 v_argptr = null; | |
| 222 } | |
| 223 parameters = null; | |
| 224 labtab = null; | |
| 225 overnext = null; | |
| 226 vtblIndex = -1; | |
| 227 hasReturnExp = 0; | |
| 228 naked = 0; | |
| 229 inlineStatus = ILS.ILSuninitialized; | |
| 230 inlineNest = 0; | |
| 231 inlineAsm = 0; | |
| 232 cantInterpret = 0; | |
| 233 semanticRun = 0; | |
| 234 version (DMDV1) { | |
| 235 nestedFrameRef = 0; | |
| 236 } | |
| 237 fes = null; | |
| 238 introducing = 0; | |
| 239 tintro = null; | |
| 0 | 240 /* The type given for "infer the return type" is a TypeFunction with |
| 241 * null for the return type. | |
| 242 */ | |
| 243 inferRetType = (type && type.nextOf() is null); | |
| 73 | 244 hasReturnExp = 0; |
| 245 nrvo_can = 1; | |
| 246 nrvo_var = null; | |
| 247 shidden = null; | |
| 248 version (DMDV2) { | |
| 249 builtin = BUILTINunknown; | |
| 250 tookAddressOf = 0; | |
| 251 } | |
| 252 foverrides = new FuncDeclarations(); | |
| 0 | 253 closureVars = new Dsymbols(); |
| 254 } | |
| 255 | |
| 72 | 256 override Dsymbol syntaxCopy(Dsymbol s) |
| 0 | 257 { |
| 258 FuncDeclaration f; | |
| 259 | |
| 260 //printf("FuncDeclaration::syntaxCopy('%s')\n", toChars()); | |
| 261 if (s) | |
| 262 f = cast(FuncDeclaration)s; | |
| 263 else | |
| 264 f = new FuncDeclaration(loc, endloc, ident, storage_class, type.syntaxCopy()); | |
| 265 | |
| 266 f.outId = outId; | |
| 267 f.frequire = frequire ? frequire.syntaxCopy() : null; | |
| 268 f.fensure = fensure ? fensure.syntaxCopy() : null; | |
| 269 f.fbody = fbody ? fbody.syntaxCopy() : null; | |
| 270 assert(!fthrows); // deprecated | |
| 271 | |
| 272 return f; | |
| 273 } | |
| 274 | |
| 275 // Do the semantic analysis on the external interface to the function. | |
| 72 | 276 override void semantic(Scope sc) |
| 0 | 277 { |
| 278 TypeFunction f; | |
| 279 StructDeclaration sd; | |
| 280 ClassDeclaration cd; | |
| 281 InterfaceDeclaration id; | |
| 282 Dsymbol pd; | |
| 283 | |
| 79 | 284 static if (false) |
| 285 { | |
| 0 | 286 printf("FuncDeclaration.semantic(sc = %p, this = %p, '%s', linkage = %d)\n", sc, this, toPrettyChars(), sc.linkage); |
| 287 if (isFuncLiteralDeclaration()) | |
| 288 printf("\tFuncLiteralDeclaration()\n"); | |
| 289 printf("sc.parent = %s, parent = %s\n", sc.parent.toChars(), parent ? parent.toChars() : ""); | |
| 290 printf("type: %p, %s\n", type, type.toChars()); | |
| 291 } | |
| 292 | |
| 293 if (semanticRun && isFuncLiteralDeclaration()) | |
| 294 { | |
| 79 | 295 /* Member functions that have return types that are |
| 296 * forward references can have semantic() run more than | |
| 297 * once on them. | |
| 298 * See test\interface2.d, test20 | |
| 299 */ | |
| 300 return; | |
| 0 | 301 } |
| 302 assert(semanticRun <= 1); | |
| 303 semanticRun = 1; | |
| 304 | |
| 305 storage_class |= sc.stc & ~STC.STCref; | |
| 306 //printf("function storage_class = x%x\n", storage_class); | |
| 307 | |
| 308 if (!originalType) | |
| 79 | 309 originalType = type; |
| 0 | 310 if (!type.deco) |
| 311 { | |
| 135 | 312 sc = sc.push(); |
| 313 sc.stc |= storage_class & STC.STCref; // forward refness to function type | |
| 314 type = type.semantic(loc, sc); | |
| 315 sc = sc.pop(); | |
| 316 | |
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317 /* Apply const, immutable and shared storage class |
| 79 | 318 * to the function type |
| 319 */ | |
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320 StorageClass stc = storage_class; |
| 135 | 321 if (type.isImmutable()) |
| 79 | 322 stc |= STC.STCimmutable; |
| 323 if (type.isConst()) | |
| 324 stc |= STC.STCconst; | |
| 325 if (type.isShared() || storage_class & STC.STCsynchronized) | |
| 326 stc |= STC.STCshared; | |
| 135 | 327 if (type.isWild()) |
| 328 stc |= STC.STCwild; | |
| 79 | 329 switch (stc & STC.STC_TYPECTOR) |
| 330 { | |
| 331 case STC.STCimmutable: | |
| 332 case STC.STCimmutable | STC.STCconst: | |
| 333 case STC.STCimmutable | STC.STCconst | STC.STCshared: | |
| 334 case STC.STCimmutable | STC.STCshared: | |
| 135 | 335 case STC.STCimmutable | STC.STCwild: |
| 336 case STC.STCimmutable | STC.STCconst | STC.STCwild: | |
| 337 case STC.STCimmutable | STC.STCconst | STC.STCshared | STC.STCwild: | |
| 338 case STC.STCimmutable | STC.STCshared | STC.STCwild: | |
| 79 | 339 // Don't use toInvariant(), as that will do a merge() |
| 340 type = type.makeInvariant(); | |
| 341 goto Lmerge; | |
| 342 | |
| 343 case STC.STCconst: | |
| 135 | 344 case STC.STCconst | STC.STCwild: |
| 79 | 345 type = type.makeConst(); |
| 346 goto Lmerge; | |
| 347 | |
| 348 case STC.STCshared | STC.STCconst: | |
| 135 | 349 case STC.STCshared | STC.STCconst | STC.STCwild: |
| 79 | 350 type = type.makeSharedConst(); |
| 351 goto Lmerge; | |
| 352 | |
| 353 case STC.STCshared: | |
| 354 type = type.makeShared(); | |
| 135 | 355 goto Lmerge; |
| 356 | |
| 357 case STC.STCwild: | |
| 358 type = type.makeWild(); | |
| 359 goto Lmerge; | |
| 360 | |
| 361 case STC.STCshared | STC.STCwild: | |
| 362 type = type.makeSharedWild(); | |
| 363 goto Lmerge; | |
| 364 | |
| 79 | 365 Lmerge: |
| 366 if (!(type.ty == Tfunction && !type.nextOf())) | |
| 367 /* Can't do merge if return type is not known yet | |
| 368 */ | |
| 369 type.deco = type.merge().deco; | |
| 370 break; | |
| 371 | |
| 372 case STC.STCundefined: | |
| 373 break; | |
| 374 | |
| 375 default: | |
| 376 assert(0); | |
| 377 } | |
| 0 | 378 } |
| 135 | 379 storage_class &= ~STC.STCref; |
| 0 | 380 if (type.ty != TY.Tfunction) |
| 381 { | |
| 382 error("%s must be a function", toChars()); | |
| 383 return; | |
| 384 } | |
| 385 f = cast(TypeFunction)type; | |
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386 size_t nparams = Parameter.dim(f.parameters); |
| 0 | 387 |
| 388 linkage = sc.linkage; | |
| 389 // if (!parent) | |
| 390 { | |
| 391 //parent = sc.scopesym; | |
| 392 parent = sc.parent; | |
| 393 } | |
| 394 protection = sc.protection; | |
| 395 Dsymbol parent = toParent(); | |
| 396 | |
| 397 if (storage_class & STC.STCscope) | |
| 398 error("functions cannot be scope"); | |
| 399 | |
| 400 if (isAbstract() && !isVirtual()) | |
| 401 error("non-virtual functions cannot be abstract"); | |
| 402 | |
| 135 | 403 if ((f.isConst() || f.isImmutable()) && !isThis()) |
| 0 | 404 error("without 'this' cannot be const/immutable"); |
| 405 | |
| 406 if (isAbstract() && isFinal()) | |
| 407 error("cannot be both final and abstract"); | |
| 408 static if (false) { | |
| 409 if (isAbstract() && fbody) | |
| 410 error("abstract functions cannot have bodies"); | |
| 411 } | |
| 412 | |
| 413 static if (false) { | |
| 414 if (isStaticConstructor() || isStaticDestructor()) | |
| 415 { | |
| 416 if (!isStatic() || type.nextOf().ty != Tvoid) | |
| 417 error("static constructors / destructors must be static void"); | |
| 418 if (f.arguments && f.arguments.dim) | |
| 419 error("static constructors / destructors must have empty parameter list"); | |
| 420 // BUG: check for invalid storage classes | |
| 421 } | |
| 422 } | |
| 423 | |
| 424 version (IN_GCC) { | |
| 425 AggregateDeclaration ad; | |
| 426 | |
| 427 ad = parent.isAggregateDeclaration(); | |
| 428 if (ad) | |
| 429 ad.methods.push(cast(void*)this); | |
| 430 } | |
| 431 sd = parent.isStructDeclaration(); | |
| 432 if (sd) | |
| 433 { | |
| 434 if (isCtorDeclaration()) | |
| 435 { | |
| 436 return; | |
| 437 } | |
| 438 static if (false) { | |
| 439 // Verify no constructors, destructors, etc. | |
| 440 if (isCtorDeclaration() | |
| 441 //||isDtorDeclaration() | |
| 442 //|| isInvariantDeclaration() | |
| 443 //|| isUnitTestDeclaration() | |
| 444 ) | |
| 445 { | |
| 446 error("special member functions not allowed for %ss", sd.kind()); | |
| 447 } | |
| 448 | |
| 449 if (!sd.inv) | |
| 450 sd.inv = isInvariantDeclaration(); | |
| 451 | |
| 452 if (!sd.aggNew) | |
| 453 sd.aggNew = isNewDeclaration(); | |
| 454 | |
| 455 if (isDelete()) | |
| 456 { | |
| 457 if (sd.aggDelete) | |
| 458 error("multiple delete's for struct %s", sd.toChars()); | |
| 459 sd.aggDelete = cast(DeleteDeclaration)this; | |
| 460 } | |
| 461 } | |
| 462 } | |
| 463 | |
| 464 id = parent.isInterfaceDeclaration(); | |
| 465 if (id) | |
| 466 { | |
| 467 storage_class |= STC.STCabstract; | |
| 468 | |
| 469 if (isCtorDeclaration() || | |
| 470 ///static if (DMDV2) { | |
| 471 isPostBlitDeclaration() || | |
| 472 ///} | |
| 473 isDtorDeclaration() || | |
| 474 isInvariantDeclaration() || | |
| 475 isUnitTestDeclaration() || isNewDeclaration() || isDelete()) | |
| 476 error("special function not allowed in interface %s", id.toChars()); | |
| 477 if (fbody) | |
| 478 error("function body is not abstract in interface %s", id.toChars()); | |
| 479 } | |
| 480 | |
| 481 /* Template member functions aren't virtual: | |
| 482 * interface TestInterface { void tpl(T)(); } | |
| 483 * and so won't work in interfaces | |
| 484 */ | |
| 485 if ((pd = toParent()) !is null && | |
| 486 pd.isTemplateInstance() && | |
| 487 (pd = toParent2()) !is null && | |
| 488 (id = pd.isInterfaceDeclaration()) !is null) | |
| 489 { | |
| 490 error("template member function not allowed in interface %s", id.toChars()); | |
| 491 } | |
| 492 | |
| 493 cd = parent.isClassDeclaration(); | |
| 494 if (cd) | |
| 495 { int vi; | |
| 496 CtorDeclaration ctor; | |
| 497 DtorDeclaration dtor; | |
| 498 InvariantDeclaration inv; | |
| 499 | |
| 500 if (isCtorDeclaration()) | |
| 501 { | |
| 502 // ctor = cast(CtorDeclaration)this; | |
| 503 // if (!cd.ctor) | |
| 504 // cd.ctor = ctor; | |
| 505 return; | |
| 506 } | |
| 507 | |
| 508 static if (false) { | |
| 509 dtor = isDtorDeclaration(); | |
| 510 if (dtor) | |
| 511 { | |
| 512 if (cd.dtor) | |
| 513 error("multiple destructors for class %s", cd.toChars()); | |
| 514 cd.dtor = dtor; | |
| 515 } | |
| 516 | |
| 517 inv = isInvariantDeclaration(); | |
| 518 if (inv) | |
| 519 { | |
| 520 cd.inv = inv; | |
| 521 } | |
| 522 | |
| 523 if (isNewDeclaration()) | |
| 524 { | |
| 525 if (!cd.aggNew) | |
| 526 cd.aggNew = cast(NewDeclaration)this; | |
| 527 } | |
| 528 | |
| 529 if (isDelete()) | |
| 530 { | |
| 531 if (cd.aggDelete) | |
| 532 error("multiple delete's for class %s", cd.toChars()); | |
| 533 cd.aggDelete = cast(DeleteDeclaration)this; | |
| 534 } | |
| 535 } | |
| 536 | |
| 537 if (storage_class & STC.STCabstract) | |
| 538 cd.isabstract = true; | |
| 539 | |
| 540 // if static function, do not put in vtbl[] | |
| 541 if (!isVirtual()) | |
| 542 { | |
| 543 //printf("\tnot virtual\n"); | |
| 544 goto Ldone; | |
| 545 } | |
| 546 | |
| 547 // Find index of existing function in vtbl[] to override | |
| 548 vi = findVtblIndex(cd.vtbl, cd.baseClass ? cd.baseClass.vtbl.dim : 0); | |
| 549 switch (vi) | |
| 550 { | |
| 551 case -1: | |
| 552 /* Didn't find one, so | |
| 553 * This is an 'introducing' function which gets a new | |
| 554 * slot in the vtbl[]. | |
| 555 */ | |
| 556 | |
| 557 // Verify this doesn't override previous final function | |
| 558 if (cd.baseClass) | |
| 559 { | |
| 560 Dsymbol s = cd.baseClass.search(loc, ident, 0); | |
| 561 if (s) | |
| 562 { | |
| 563 FuncDeclaration ff = s.isFuncDeclaration(); | |
| 564 ff = ff.overloadExactMatch(type); | |
| 565 if (ff && ff.isFinal() && ff.prot() != PROT.PROTprivate) | |
| 566 error("cannot override final function %s", ff.toPrettyChars()); | |
| 567 } | |
| 568 } | |
| 569 | |
| 570 if (isFinal()) | |
| 571 { | |
| 572 if (isOverride()) | |
| 573 error("does not override any function"); | |
| 574 cd.vtblFinal.push(cast(void*)this); | |
| 575 } | |
| 576 else | |
| 577 { | |
| 578 // Append to end of vtbl[] | |
| 579 //printf("\tintroducing function\n"); | |
| 580 introducing = 1; | |
| 581 vi = cd.vtbl.dim; | |
| 582 cd.vtbl.push(cast(void*)this); | |
| 583 vtblIndex = vi; | |
| 584 } | |
| 585 break; | |
| 586 | |
| 587 case -2: // can't determine because of fwd refs | |
| 588 cd.sizeok = 2; // can't finish due to forward reference | |
| 589 return; | |
| 590 | |
| 591 default: | |
| 592 { | |
| 593 FuncDeclaration fdv = cast(FuncDeclaration)cd.vtbl.data[vi]; | |
| 594 // This function is covariant with fdv | |
| 595 if (fdv.isFinal()) | |
| 596 error("cannot override final function %s", fdv.toPrettyChars()); | |
| 597 | |
| 598 version (DMDV2) { | |
| 599 if (!isOverride()) | |
| 600 warning(loc, "overrides base class function %s, but is not marked with 'override'", fdv.toPrettyChars()); | |
| 601 } | |
| 602 | |
| 603 if (fdv.toParent() == parent) | |
| 604 { | |
| 605 // If both are mixins, then error. | |
| 606 // If either is not, the one that is not overrides | |
| 607 // the other. | |
| 608 if (fdv.parent.isClassDeclaration()) | |
| 609 break; | |
| 610 if (!this.parent.isClassDeclaration() | |
| 611 ///static if (!BREAKABI) { | |
| 612 && !isDtorDeclaration() | |
| 613 ///} | |
| 614 ///version (DMDV2) { | |
| 615 && !isPostBlitDeclaration() | |
| 616 ///} | |
| 617 ) | |
| 618 error("multiple overrides of same function"); | |
| 619 } | |
| 620 cd.vtbl.data[vi] = cast(void*)this; | |
| 621 vtblIndex = vi; | |
| 73 | 622 |
| 623 /* Remember which functions this overrides | |
| 624 */ | |
|
74
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Switch Arrays of Dsymbols to the new templated Vector type
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diff
changeset
|
625 foverrides.push(fdv); |
| 0 | 626 |
| 627 /* This works by whenever this function is called, | |
| 628 * it actually returns tintro, which gets dynamically | |
| 629 * cast to type. But we know that tintro is a base | |
| 630 * of type, so we could optimize it by not doing a | |
| 631 * dynamic cast, but just subtracting the isBaseOf() | |
| 632 * offset if the value is != null. | |
| 633 */ | |
| 634 | |
| 635 if (fdv.tintro) | |
| 636 tintro = fdv.tintro; | |
| 637 else if (!type.equals(fdv.type)) | |
| 638 { | |
| 639 /* Only need to have a tintro if the vptr | |
| 640 * offsets differ | |
| 641 */ | |
| 642 int offset; | |
| 643 if (fdv.type.nextOf().isBaseOf(type.nextOf(), &offset)) | |
| 644 { | |
| 645 tintro = fdv.type; | |
| 646 } | |
| 647 } | |
| 648 break; | |
| 649 } | |
| 650 } | |
| 651 | |
| 652 /* Go through all the interface bases. | |
| 653 * If this function is covariant with any members of those interface | |
| 654 * functions, set the tintro. | |
| 655 */ | |
| 656 for (int i = 0; i < cd.interfaces_dim; i++) | |
| 657 { | |
| 658 BaseClass b = cd.interfaces[i]; | |
| 659 vi = findVtblIndex(b.base.vtbl, b.base.vtbl.dim); | |
| 660 switch (vi) | |
| 661 { | |
| 662 case -1: | |
| 663 break; | |
| 664 | |
| 665 case -2: | |
| 666 cd.sizeok = 2; // can't finish due to forward reference | |
| 667 return; | |
| 668 | |
| 669 default: | |
| 670 { FuncDeclaration fdv = cast(FuncDeclaration)b.base.vtbl.data[vi]; | |
| 671 Type ti = null; | |
| 73 | 672 |
| 673 /* Remember which functions this overrides | |
| 674 */ | |
|
74
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Switch Arrays of Dsymbols to the new templated Vector type
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diff
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|
675 foverrides.push(fdv); |
| 0 | 676 |
| 677 if (fdv.tintro) | |
| 73 | 678 ti = fdv.tintro; |
| 0 | 679 else if (!type.equals(fdv.type)) |
| 680 { | |
| 681 /* Only need to have a tintro if the vptr | |
| 682 * offsets differ | |
| 683 */ | |
| 684 int offset; | |
| 685 if (fdv.type.nextOf().isBaseOf(type.nextOf(), &offset)) | |
| 686 { | |
| 687 ti = fdv.type; | |
| 688 static if (false) { | |
| 689 if (offset) | |
| 690 ti = fdv.type; | |
| 691 else if (type.nextOf().ty == Tclass) | |
| 692 { | |
| 693 ClassDeclaration cdn = (cast(TypeClass)type.nextOf()).sym; | |
| 694 if (cdn && cdn.sizeok != 1) | |
| 695 ti = fdv.type; | |
| 696 } | |
| 697 } | |
| 698 } | |
| 699 } | |
| 700 if (ti) | |
| 701 { | |
| 702 if (tintro && !tintro.equals(ti)) | |
| 703 { | |
| 704 error("incompatible covariant types %s and %s", tintro.toChars(), ti.toChars()); | |
| 705 } | |
| 706 tintro = ti; | |
| 707 } | |
| 708 goto L2; | |
| 709 } | |
| 710 } | |
| 711 } | |
| 712 | |
| 713 if (introducing && isOverride()) | |
| 714 { | |
| 715 error("does not override any function"); | |
| 716 } | |
| 717 | |
| 718 L2: ; | |
| 719 } | |
| 720 else if (isOverride() && !parent.isTemplateInstance()) | |
| 721 error("override only applies to class member functions"); | |
| 722 | |
| 723 /* Do not allow template instances to add virtual functions | |
| 724 * to a class. | |
| 725 */ | |
| 726 if (isVirtual()) | |
| 727 { | |
| 728 TemplateInstance ti = parent.isTemplateInstance(); | |
| 729 if (ti) | |
| 730 { | |
| 731 // Take care of nested templates | |
| 732 while (1) | |
| 733 { | |
| 734 TemplateInstance ti2 = ti.tempdecl.parent.isTemplateInstance(); | |
| 735 if (!ti2) | |
| 736 break; | |
| 737 ti = ti2; | |
| 738 } | |
| 739 | |
| 740 // If it's a member template | |
| 741 ClassDeclaration cdd = ti.tempdecl.isClassMember(); | |
| 742 if (cdd) | |
| 743 { | |
| 744 error("cannot use template to add virtual function to class '%s'", cdd.toChars()); | |
| 745 } | |
| 746 } | |
| 747 } | |
| 748 | |
| 749 if (isMain()) | |
| 750 { | |
| 751 // Check parameters to see if they are either () or (char[][] args) | |
| 752 switch (nparams) | |
| 753 { | |
| 754 case 0: | |
| 755 break; | |
| 756 | |
| 757 case 1: | |
| 758 { | |
|
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diff
changeset
|
759 auto arg0 = Parameter.getNth(f.parameters, 0); |
| 0 | 760 if (arg0.type.ty != TY.Tarray || |
| 761 arg0.type.nextOf().ty != TY.Tarray || | |
| 762 arg0.type.nextOf().nextOf().ty != TY.Tchar || | |
| 763 arg0.storageClass & (STC.STCout | STC.STCref | STC.STClazy)) | |
| 764 goto Lmainerr; | |
| 765 break; | |
| 766 } | |
| 767 | |
| 768 default: | |
| 769 goto Lmainerr; | |
| 770 } | |
| 771 | |
| 79 | 772 if (!f.nextOf()) |
| 773 error("must return int or void"); | |
| 774 else if (f.nextOf().ty != TY.Tint32 && f.nextOf().ty != TY.Tvoid) | |
| 0 | 775 error("must return int or void, not %s", f.nextOf().toChars()); |
| 776 if (f.varargs) | |
| 777 { | |
| 778 Lmainerr: | |
| 779 error("parameters must be main() or main(char[][] args)"); | |
| 780 } | |
| 781 } | |
| 782 | |
| 783 if (ident == Id.assign && (sd || cd)) | |
| 784 { // Disallow identity assignment operator. | |
| 785 | |
| 786 // opAssign(...) | |
| 787 if (nparams == 0) | |
| 788 { if (f.varargs == 1) | |
| 789 goto Lassignerr; | |
| 790 } | |
| 791 else | |
| 792 { | |
|
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126
diff
changeset
|
793 auto arg0 = Parameter.getNth(f.parameters, 0); |
| 0 | 794 Type t0 = arg0.type.toBasetype(); |
| 795 Type tb = sd ? sd.type : cd.type; | |
| 796 if (arg0.type.implicitConvTo(tb) || | |
| 797 (sd && t0.ty == TY.Tpointer && t0.nextOf().implicitConvTo(tb)) | |
| 798 ) | |
| 799 { | |
| 800 if (nparams == 1) | |
| 801 goto Lassignerr; | |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
126
diff
changeset
|
802 auto arg1 = Parameter.getNth(f.parameters, 1); |
| 0 | 803 if (arg1.defaultArg) |
| 804 goto Lassignerr; | |
| 805 } | |
| 806 } | |
| 807 } | |
| 73 | 808 |
| 809 if (isVirtual()) | |
| 810 { | |
| 811 /* Rewrite contracts as nested functions, then call them. | |
| 812 * Doing it as nested functions means that overriding functions | |
| 813 * can call them. | |
| 814 */ | |
| 815 if (frequire) | |
| 816 { | |
| 817 /* in { ... } | |
| 818 * becomes: | |
| 819 * void __require() { ... } | |
| 820 * __require(); | |
| 821 */ | |
| 822 Loc loc = frequire.loc; | |
| 823 TypeFunction tf = new TypeFunction(null, Type.tvoid, 0, LINKd); | |
| 824 FuncDeclaration fd = new FuncDeclaration(loc, loc, Id.require, STCundefined, tf); | |
| 825 fd.fbody = frequire; | |
| 826 Statement s1 = new DeclarationStatement(loc, fd); | |
| 827 Expression e = new CallExp(loc, new VarExp(loc, fd, 0), cast(Expressions)null); | |
| 828 Statement s2 = new ExpStatement(loc, e); | |
| 829 frequire = new CompoundStatement(loc, s1, s2); | |
| 830 fdrequire = fd; | |
| 831 } | |
| 832 | |
| 833 if (fensure) | |
| 834 { /* out (result) { ... } | |
| 835 * becomes: | |
| 836 * tret __ensure(ref tret result) { ... } | |
| 837 * __ensure(result); | |
| 838 */ | |
| 839 if (!outId && f.nextOf().toBasetype().ty != Tvoid) | |
| 840 outId = Id.result; // provide a default | |
| 841 | |
| 842 Loc loc = fensure.loc; | |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
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parents:
126
diff
changeset
|
843 auto arguments = new Parameters(); |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
126
diff
changeset
|
844 Parameter a = null; |
| 73 | 845 if (outId) |
| 846 { | |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
126
diff
changeset
|
847 a = new Parameter(STCref, f.nextOf(), outId, null); |
|
126
1765f3ef917d
ClassDeclarations, Arguments -> Vector
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
122
diff
changeset
|
848 arguments.push(a); |
| 73 | 849 } |
| 850 TypeFunction tf = new TypeFunction(arguments, Type.tvoid, 0, LINKd); | |
| 851 FuncDeclaration fd = new FuncDeclaration(loc, loc, Id.ensure, STCundefined, tf); | |
| 852 fd.fbody = fensure; | |
| 853 Statement s1 = new DeclarationStatement(loc, fd); | |
| 854 Expression eresult = null; | |
| 855 if (outId) | |
| 856 eresult = new IdentifierExp(loc, outId); | |
| 857 Expression e = new CallExp(loc, new VarExp(loc, fd, 0), eresult); | |
| 858 Statement s2 = new ExpStatement(loc, e); | |
| 859 fensure = new CompoundStatement(loc, s1, s2); | |
| 860 fdensure = fd; | |
| 861 } | |
| 862 } | |
| 0 | 863 |
| 864 Ldone: | |
| 865 /* Save scope for possible later use (if we need the | |
| 866 * function internals) | |
| 867 */ | |
|
87
b17640f0e4e8
Fixed a bug with a Scope.this(Scope enclosing) being called instead of Scope.clone() method (as a copy ctor replacement)
korDen
parents:
79
diff
changeset
|
868 scope_ = sc.clone(); |
| 0 | 869 scope_.setNoFree(); |
| 870 return; | |
| 871 | |
| 872 Lassignerr: | |
| 873 if (sd) | |
| 874 { | |
| 875 sd.hasIdentityAssign = 1; // don't need to generate it | |
| 876 goto Ldone; | |
| 877 } | |
| 878 error("identity assignment operator overload is illegal"); | |
| 879 } | |
| 880 | |
| 72 | 881 override void semantic2(Scope sc) |
| 0 | 882 { |
| 883 } | |
| 884 | |
| 885 // Do the semantic analysis on the internals of the function. | |
| 72 | 886 override void semantic3(Scope sc) |
| 0 | 887 { |
| 888 TypeFunction f; | |
| 889 VarDeclaration argptr = null; | |
| 890 VarDeclaration _arguments = null; | |
| 891 | |
| 892 if (!parent) | |
| 893 { | |
| 894 if (global.errors) | |
| 895 return; | |
| 896 //printf("FuncDeclaration.semantic3(%s '%s', sc = %p)\n", kind(), toChars(), sc); | |
| 897 assert(0); | |
| 898 } | |
| 899 //printf("FuncDeclaration.semantic3('%s.%s', sc = %p, loc = %s)\n", parent.toChars(), toChars(), sc, loc.toChars()); | |
| 900 //fflush(stdout); | |
| 901 //printf("storage class = x%x %x\n", sc.stc, storage_class); | |
| 902 //{ static int x; if (++x == 2) *(char*)0=0; } | |
| 903 //printf("\tlinkage = %d\n", sc.linkage); | |
| 904 | |
| 905 //printf(" sc.incontract = %d\n", sc.incontract); | |
| 906 if (semanticRun >= 3) | |
| 907 return; | |
| 908 semanticRun = 3; | |
| 909 | |
| 910 if (!type || type.ty != TY.Tfunction) | |
| 911 return; | |
| 912 f = cast(TypeFunction)(type); | |
| 913 | |
| 914 // Check the 'throws' clause | |
| 915 if (fthrows) | |
| 916 { | |
| 917 for (int i = 0; i < fthrows.dim; i++) | |
| 918 { | |
| 919 Type t = cast(Type)fthrows.data[i]; | |
| 920 | |
| 921 t = t.semantic(loc, sc); | |
| 922 if (!t.isClassHandle()) | |
| 923 error("can only throw classes, not %s", t.toChars()); | |
| 924 } | |
| 925 } | |
| 73 | 926 |
| 927 frequire = mergeFrequire(frequire); | |
| 928 fensure = mergeFensure(fensure); | |
| 0 | 929 |
| 930 if (fbody || frequire) | |
| 931 { | |
| 932 /* Symbol table into which we place parameters and nested functions, | |
| 933 * solely to diagnose name collisions. | |
| 934 */ | |
| 935 localsymtab = new DsymbolTable(); | |
| 936 | |
| 937 // Establish function scope | |
| 938 ScopeDsymbol ss = new ScopeDsymbol(); | |
| 939 ss.parent = sc.scopesym; | |
| 940 Scope sc2 = sc.push(ss); | |
| 941 sc2.func = this; | |
| 942 sc2.parent = this; | |
| 943 sc2.callSuper = 0; | |
| 944 sc2.sbreak = null; | |
| 945 sc2.scontinue = null; | |
| 946 sc2.sw = null; | |
| 947 sc2.fes = fes; | |
| 948 sc2.linkage = LINK.LINKd; | |
|
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dmdfe 2.037 first main iteration
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parents:
126
diff
changeset
|
949 sc2.stc &= ~(STC.STCauto | STC.STCscope | STC.STCstatic | STC.STCabstract | STC.STCdeprecated | |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
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diff
changeset
|
950 STC.STC_TYPECTOR | STC.STCfinal | STC.STCtls | STC.STCgshared | STC.STCref | |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
126
diff
changeset
|
951 STCproperty | STCsafe | STCtrusted | STCsystem); |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
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diff
changeset
|
952 sc2.protection = PROT.PROTpublic; |
| 0 | 953 sc2.explicitProtection = 0; |
| 954 sc2.structalign = 8; | |
| 955 sc2.incontract = 0; | |
| 956 sc2.tf = null; | |
| 957 sc2.noctor = 0; | |
| 958 | |
| 959 // Declare 'this' | |
| 960 AggregateDeclaration ad = isThis(); | |
| 961 if (ad) | |
| 962 { VarDeclaration v; | |
| 963 | |
| 964 if (isFuncLiteralDeclaration() && isNested()) | |
| 965 { | |
| 966 error("literals cannot be class members"); | |
| 967 return; | |
| 968 } | |
| 969 else | |
| 970 { | |
| 971 assert(!isNested()); // can't be both member and nested | |
| 972 assert(ad.handle); | |
| 973 Type thandle = ad.handle; | |
| 974 version (STRUCTTHISREF) { | |
| 975 thandle = thandle.addMod(type.mod); | |
| 976 thandle = thandle.addStorageClass(storage_class); | |
| 977 if (isPure()) | |
| 978 thandle = thandle.addMod(MOD.MODconst); | |
| 979 } else { | |
| 980 if (storage_class & STC.STCconst || type.isConst()) | |
| 981 { | |
| 982 assert(0); // BUG: shared not handled | |
| 983 if (thandle.ty == TY.Tclass) | |
| 984 thandle = thandle.constOf(); | |
| 985 else | |
| 986 { assert(thandle.ty == TY.Tpointer); | |
| 987 thandle = thandle.nextOf().constOf().pointerTo(); | |
| 988 } | |
| 989 } | |
| 135 | 990 else if (storage_class & STC.STCimmutable || type.isImmutable()) |
| 0 | 991 { |
| 992 if (thandle.ty == TY.Tclass) | |
| 993 thandle = thandle.invariantOf(); | |
| 994 else | |
| 995 { assert(thandle.ty == TY.Tpointer); | |
| 996 thandle = thandle.nextOf().invariantOf().pointerTo(); | |
| 997 } | |
| 998 } | |
| 999 else if (storage_class & STC.STCshared || type.isShared()) | |
| 1000 { | |
| 1001 assert(0); // not implemented | |
| 1002 } | |
| 1003 } | |
| 1004 v = new ThisDeclaration(loc, thandle); | |
| 1005 v.storage_class |= STC.STCparameter; | |
| 1006 version (STRUCTTHISREF) { | |
| 1007 if (thandle.ty == TY.Tstruct) | |
| 1008 v.storage_class |= STC.STCref; | |
| 1009 } | |
| 1010 v.semantic(sc2); | |
| 1011 if (!sc2.insert(v)) | |
| 1012 assert(0); | |
| 1013 v.parent = this; | |
| 1014 vthis = v; | |
| 1015 } | |
| 1016 } | |
| 1017 else if (isNested()) | |
| 1018 { | |
| 1019 /* The 'this' for a nested function is the link to the | |
| 1020 * enclosing function's stack frame. | |
| 1021 * Note that nested functions and member functions are disjoint. | |
| 1022 */ | |
| 1023 VarDeclaration v = new ThisDeclaration(loc, Type.tvoid.pointerTo()); | |
| 1024 v.storage_class |= STC.STCparameter; | |
| 1025 v.semantic(sc2); | |
| 1026 if (!sc2.insert(v)) | |
| 1027 assert(0); | |
| 1028 v.parent = this; | |
| 1029 vthis = v; | |
| 1030 } | |
| 1031 | |
| 1032 // Declare hidden variable _arguments[] and _argptr | |
| 1033 if (f.varargs == 1) | |
| 1034 { | |
| 1035 version (TARGET_NET) { | |
| 1036 varArgs(sc2, f, argptr, _arguments); | |
| 1037 } else { | |
| 1038 Type t; | |
| 1039 | |
| 1040 if (f.linkage == LINK.LINKd) | |
| 1041 { | |
| 1042 // Declare _arguments[] | |
| 1043 version (BREAKABI) { | |
| 1044 v_arguments = new VarDeclaration(Loc(0), Type.typeinfotypelist.type, Id._arguments_typeinfo, null); | |
| 1045 v_arguments.storage_class = STCparameter; | |
| 1046 v_arguments.semantic(sc2); | |
| 1047 sc2.insert(v_arguments); | |
| 1048 v_arguments.parent = this; | |
| 1049 | |
| 1050 //t = Type.typeinfo.type.constOf().arrayOf(); | |
| 1051 t = Type.typeinfo.type.arrayOf(); | |
| 1052 _arguments = new VarDeclaration(Loc(0), t, Id._arguments, null); | |
| 1053 _arguments.semantic(sc2); | |
| 1054 sc2.insert(_arguments); | |
| 1055 _arguments.parent = this; | |
| 1056 } else { | |
| 1057 t = Type.typeinfo.type.arrayOf(); | |
| 1058 v_arguments = new VarDeclaration(Loc(0), t, Id._arguments, null); | |
| 1059 v_arguments.storage_class = STC.STCparameter | STC.STCin; | |
| 1060 v_arguments.semantic(sc2); | |
| 1061 sc2.insert(v_arguments); | |
| 1062 v_arguments.parent = this; | |
| 1063 } | |
| 1064 } | |
| 1065 if (f.linkage == LINK.LINKd || (parameters && parameters.dim)) | |
| 1066 { // Declare _argptr | |
| 1067 version (IN_GCC) { | |
| 1068 t = d_gcc_builtin_va_list_d_type; | |
| 1069 } else { | |
| 1070 t = Type.tvoid.pointerTo(); | |
| 1071 } | |
| 1072 argptr = new VarDeclaration(Loc(0), t, Id._argptr, null); | |
| 1073 argptr.semantic(sc2); | |
| 1074 sc2.insert(argptr); | |
| 1075 argptr.parent = this; | |
| 1076 } | |
| 1077 } | |
| 1078 } | |
| 135 | 1079 static if(false) { |
| 0 | 1080 // Propagate storage class from tuple parameters to their element-parameters. |
| 1081 if (f.parameters) | |
| 1082 { | |
|
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Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
122
diff
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|
1083 foreach (arg; f.parameters) |
|
1765f3ef917d
ClassDeclarations, Arguments -> Vector
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parents:
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diff
changeset
|
1084 { |
| 0 | 1085 //printf("[%d] arg.type.ty = %d %s\n", i, arg.type.ty, arg.type.toChars()); |
| 1086 if (arg.type.ty == TY.Ttuple) | |
|
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1087 { auto t = cast(TypeTuple)arg.type; |
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1088 size_t dim = Parameter.dim(t.arguments); |
| 0 | 1089 for (size_t j = 0; j < dim; j++) |
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1090 { |
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1091 auto narg = Parameter.getNth(t.arguments, j); |
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1092 narg.storageClass = arg.storageClass; |
| 0 | 1093 } |
| 1094 } | |
| 1095 } | |
| 1096 } | |
| 135 | 1097 } |
| 0 | 1098 /* Declare all the function parameters as variables |
| 1099 * and install them in parameters[] | |
| 1100 */ | |
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1101 size_t nparams = Parameter.dim(f.parameters); |
| 0 | 1102 if (nparams) |
| 1103 { /* parameters[] has all the tuples removed, as the back end | |
| 1104 * doesn't know about tuples | |
| 1105 */ | |
| 1106 parameters = new Dsymbols(); | |
| 1107 parameters.reserve(nparams); | |
| 1108 for (size_t i = 0; i < nparams; i++) | |
| 1109 { | |
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1110 auto arg = Parameter.getNth(f.parameters, i); |
| 0 | 1111 Identifier id = arg.ident; |
| 1112 if (!id) | |
| 1113 { | |
| 1114 /* Generate identifier for un-named parameter, | |
| 1115 * because we need it later on. | |
| 1116 */ | |
| 1117 arg.ident = id = Identifier.generateId("_param_", i); | |
| 1118 } | |
| 1119 Type vtype = arg.type; | |
| 1120 if (isPure()) | |
| 1121 vtype = vtype.addMod(MOD.MODconst); | |
| 1122 VarDeclaration v = new VarDeclaration(loc, vtype, id, null); | |
| 1123 //printf("declaring parameter %s of type %s\n", v.toChars(), v.type.toChars()); | |
| 1124 v.storage_class |= STC.STCparameter; | |
| 1125 if (f.varargs == 2 && i + 1 == nparams) | |
| 1126 v.storage_class |= STC.STCvariadic; | |
| 1127 v.storage_class |= arg.storageClass & (STC.STCin | STC.STCout | STC.STCref | STC.STClazy | STC.STCfinal | STC.STC_TYPECTOR | STC.STCnodtor); | |
| 1128 v.semantic(sc2); | |
| 1129 if (!sc2.insert(v)) | |
| 1130 error("parameter %s.%s is already defined", toChars(), v.toChars()); | |
| 1131 else | |
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1132 parameters.push(v); |
| 0 | 1133 localsymtab.insert(v); |
| 1134 v.parent = this; | |
| 1135 } | |
| 1136 } | |
| 1137 | |
| 1138 // Declare the tuple symbols and put them in the symbol table, | |
| 1139 // but not in parameters[]. | |
| 1140 if (f.parameters) | |
| 1141 { | |
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1142 foreach (arg; f.parameters) |
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1143 { |
| 0 | 1144 if (!arg.ident) |
| 1145 continue; // never used, so ignore | |
| 1146 if (arg.type.ty == TY.Ttuple) | |
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1147 { auto t = cast(TypeTuple)arg.type; |
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1148 size_t dim = Parameter.dim(t.arguments); |
| 0 | 1149 Objects exps = new Objects(); |
| 1150 exps.setDim(dim); | |
| 1151 for (size_t j = 0; j < dim; j++) | |
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1152 { auto narg = Parameter.getNth(t.arguments, j); |
| 0 | 1153 assert(narg.ident); |
| 1154 VarDeclaration v = sc2.search(Loc(0), narg.ident, null).isVarDeclaration(); | |
| 1155 assert(v); | |
| 1156 Expression e = new VarExp(v.loc, v); | |
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1157 exps[j] = e; |
| 0 | 1158 } |
| 1159 assert(arg.ident); | |
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1160 auto v = new TupleDeclaration(loc, arg.ident, exps); |
| 0 | 1161 //printf("declaring tuple %s\n", v.toChars()); |
| 1162 v.isexp = 1; | |
| 1163 if (!sc2.insert(v)) | |
| 1164 error("parameter %s.%s is already defined", toChars(), v.toChars()); | |
| 1165 localsymtab.insert(v); | |
| 1166 v.parent = this; | |
| 1167 } | |
| 1168 } | |
| 1169 } | |
| 1170 | |
| 1171 /* Do the semantic analysis on the [in] preconditions and | |
| 1172 * [out] postconditions. | |
| 1173 */ | |
| 1174 sc2.incontract++; | |
| 1175 | |
| 1176 if (frequire) | |
| 1177 { /* frequire is composed of the [in] contracts | |
| 1178 */ | |
| 1179 // BUG: need to error if accessing out parameters | |
| 1180 // BUG: need to treat parameters as const | |
| 1181 // BUG: need to disallow returns and throws | |
| 1182 // BUG: verify that all in and ref parameters are read | |
| 1183 frequire = frequire.semantic(sc2); | |
| 1184 labtab = null; // so body can't refer to labels | |
| 1185 } | |
| 1186 | |
| 1187 if (fensure || addPostInvariant()) | |
| 79 | 1188 { |
| 1189 /* fensure is composed of the [out] contracts | |
| 0 | 1190 */ |
| 79 | 1191 if (!type.nextOf()) // if return type is inferred |
| 1192 { | |
| 1193 /* This case: | |
| 1194 * auto fp = function() out { } body { }; | |
| 1195 * Can fix by doing semantic() onf fbody first. | |
| 1196 */ | |
| 1197 error("post conditions are not supported if the return type is inferred"); | |
| 1198 return; | |
| 1199 } | |
| 1200 | |
| 0 | 1201 ScopeDsymbol sym = new ScopeDsymbol(); |
| 1202 sym.parent = sc2.scopesym; | |
| 1203 sc2 = sc2.push(sym); | |
| 1204 | |
| 1205 assert(type.nextOf()); | |
| 1206 if (type.nextOf().ty == TY.Tvoid) | |
| 1207 { | |
| 1208 if (outId) | |
| 1209 error("void functions have no result"); | |
| 1210 } | |
| 1211 else | |
| 1212 { | |
| 1213 if (!outId) | |
| 1214 outId = Id.result; // provide a default | |
| 1215 } | |
| 1216 | |
| 1217 if (outId) | |
| 1218 { // Declare result variable | |
| 1219 Loc loc = this.loc; | |
| 1220 | |
| 1221 if (fensure) | |
| 1222 loc = fensure.loc; | |
| 1223 | |
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1224 auto v = new VarDeclaration(loc, type.nextOf(), outId, null); |
| 0 | 1225 v.noauto = true; |
| 1226 version (DMDV2) { | |
|
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1227 if (!isVirtual()) |
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1228 v.storage_class |= STC.STCconst; |
| 0 | 1229 if (f.isref) |
| 1230 { | |
| 1231 v.storage_class |= STC.STCref | STC.STCforeach; | |
| 1232 } | |
| 1233 } | |
| 1234 sc2.incontract--; | |
| 1235 v.semantic(sc2); | |
| 1236 sc2.incontract++; | |
| 1237 if (!sc2.insert(v)) | |
| 1238 error("out result %s is already defined", v.toChars()); | |
| 1239 v.parent = this; | |
| 1240 vresult = v; | |
| 1241 | |
| 1242 // vresult gets initialized with the function return value | |
| 1243 // in ReturnStatement.semantic() | |
| 1244 } | |
| 1245 | |
| 1246 // BUG: need to treat parameters as const | |
| 1247 // BUG: need to disallow returns and throws | |
| 1248 if (fensure) | |
| 1249 { fensure = fensure.semantic(sc2); | |
| 1250 labtab = null; // so body can't refer to labels | |
| 1251 } | |
| 1252 | |
| 1253 if (!global.params.useOut) | |
| 1254 { fensure = null; // discard | |
| 1255 vresult = null; | |
| 1256 } | |
| 1257 | |
| 1258 // Postcondition invariant | |
| 1259 if (addPostInvariant()) | |
| 1260 { | |
| 1261 Expression e = null; | |
| 1262 if (isCtorDeclaration()) | |
| 1263 { | |
| 1264 // Call invariant directly only if it exists | |
| 1265 InvariantDeclaration inv = ad.inv; | |
| 1266 ClassDeclaration cd = ad.isClassDeclaration(); | |
| 1267 | |
| 1268 while (!inv && cd) | |
| 1269 { | |
| 1270 cd = cd.baseClass; | |
| 1271 if (!cd) | |
| 1272 break; | |
| 1273 inv = cd.inv; | |
| 1274 } | |
| 1275 if (inv) | |
| 1276 { | |
| 1277 e = new DsymbolExp(Loc(0), inv); | |
| 1278 e = new CallExp(Loc(0), e); | |
| 1279 e = e.semantic(sc2); | |
| 1280 } | |
| 1281 } | |
| 1282 else | |
| 1283 { // Call invariant virtually | |
| 1284 Expression v = new ThisExp(Loc(0)); | |
| 1285 v.type = vthis.type; | |
| 1286 version (STRUCTTHISREF) { | |
| 1287 if (ad.isStructDeclaration()) | |
| 1288 v = v.addressOf(sc); | |
| 1289 } | |
| 1290 e = new AssertExp(Loc(0), v); | |
| 1291 } | |
| 1292 if (e) | |
| 1293 { | |
| 1294 ExpStatement s = new ExpStatement(Loc(0), e); | |
| 1295 if (fensure) | |
| 1296 fensure = new CompoundStatement(Loc(0), s, fensure); | |
| 1297 else | |
| 1298 fensure = s; | |
| 1299 } | |
| 1300 } | |
| 1301 | |
| 1302 if (fensure) | |
| 1303 { returnLabel = new LabelDsymbol(Id.returnLabel); | |
| 1304 LabelStatement ls = new LabelStatement(Loc(0), Id.returnLabel, fensure); | |
| 1305 ls.isReturnLabel = 1; | |
| 1306 returnLabel.statement = ls; | |
| 1307 } | |
| 1308 sc2 = sc2.pop(); | |
| 1309 } | |
| 1310 | |
| 1311 sc2.incontract--; | |
| 1312 | |
| 1313 if (fbody) | |
| 1314 { ClassDeclaration cd = isClassMember(); | |
| 1315 | |
| 1316 /* If this is a class constructor | |
| 1317 */ | |
| 1318 if (isCtorDeclaration() && cd) | |
| 1319 { | |
| 79 | 1320 for (int i = 0; i < cd.fields.dim; i++) |
| 1321 { VarDeclaration v = cast(VarDeclaration)cd.fields[i]; | |
| 1322 | |
| 1323 v.ctorinit = 0; | |
| 1324 } | |
| 0 | 1325 } |
| 1326 | |
| 1327 if (inferRetType || f.retStyle() != RET.RETstack) | |
| 1328 nrvo_can = 0; | |
| 1329 | |
| 1330 fbody = fbody.semantic(sc2); | |
| 1331 if (!fbody) | |
| 1332 fbody = new CompoundStatement(Loc(0), new Statements()); | |
| 1333 | |
| 1334 if (inferRetType) | |
| 1335 { // If no return type inferred yet, then infer a void | |
| 1336 if (!type.nextOf()) | |
| 1337 { | |
| 1338 (cast(TypeFunction)type).next = Type.tvoid; | |
| 1339 type = type.semantic(loc, sc); | |
| 1340 } | |
| 1341 f = cast(TypeFunction)type; | |
| 1342 } | |
| 1343 | |
| 1344 if (isStaticCtorDeclaration()) | |
| 1345 { | |
| 1346 /* It's a static constructor. Ensure that all | |
| 1347 * ctor consts were initialized. | |
| 1348 */ | |
| 1349 | |
| 1350 Dsymbol p = toParent(); | |
| 1351 ScopeDsymbol add = p.isScopeDsymbol(); | |
| 1352 if (!add) | |
| 1353 { | |
| 1354 error("static constructor can only be member of struct/class/module, not %s %s", p.kind(), p.toChars()); | |
| 1355 } | |
| 1356 else | |
| 1357 { | |
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1358 foreach (Dsymbol s; add.members) |
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1359 { |
| 0 | 1360 s.checkCtorConstInit(); |
| 1361 } | |
| 1362 } | |
| 1363 } | |
| 1364 | |
| 1365 if (isCtorDeclaration() && cd) | |
| 1366 { | |
| 1367 //printf("callSuper = x%x\n", sc2.callSuper); | |
| 1368 | |
| 1369 // Verify that all the ctorinit fields got initialized | |
| 1370 if (!(sc2.callSuper & CSX.CSXthis_ctor)) | |
| 1371 { | |
| 1372 for (int i = 0; i < cd.fields.dim; i++) | |
| 79 | 1373 { VarDeclaration v = cast(VarDeclaration)cd.fields[i]; |
| 0 | 1374 |
| 1375 if (v.ctorinit == 0 && v.isCtorinit()) | |
| 1376 error("missing initializer for final field %s", v.toChars()); | |
| 1377 } | |
| 1378 } | |
| 1379 | |
| 1380 if (!(sc2.callSuper & CSX.CSXany_ctor) && | |
| 1381 cd.baseClass && cd.baseClass.ctor) | |
| 1382 { | |
| 1383 sc2.callSuper = 0; | |
| 1384 | |
| 1385 // Insert implicit super() at start of fbody | |
| 1386 Expression e1 = new SuperExp(Loc(0)); | |
| 1387 Expression e = new CallExp(Loc(0), e1); | |
| 1388 | |
| 1389 e = e.trySemantic(sc2); | |
| 1390 if (!e) | |
| 1391 error("no match for implicit super() call in constructor"); | |
| 1392 else | |
| 1393 { | |
| 1394 Statement s = new ExpStatement(Loc(0), e); | |
| 1395 fbody = new CompoundStatement(Loc(0), s, fbody); | |
| 1396 } | |
| 1397 } | |
| 1398 } | |
| 1399 else if (fes) | |
| 1400 { // For foreach(){} body, append a return 0; | |
| 1401 Expression e = new IntegerExp(0); | |
| 1402 Statement s = new ReturnStatement(Loc(0), e); | |
| 1403 fbody = new CompoundStatement(Loc(0), fbody, s); | |
| 1404 assert(!returnLabel); | |
| 1405 } | |
| 1406 else if (!hasReturnExp && type.nextOf().ty != TY.Tvoid) | |
| 1407 error("expected to return a value of type %s", type.nextOf().toChars()); | |
| 1408 else if (!inlineAsm) | |
| 1409 { | |
| 1410 version (DMDV2) { | |
| 1411 BE blockexit = fbody ? fbody.blockExit() : BE.BEfallthru; | |
| 1412 if (f.isnothrow && blockexit & BE.BEthrow) | |
| 1413 error("'%s' is nothrow yet may throw", toChars()); | |
| 1414 | |
| 1415 int offend = blockexit & BE.BEfallthru; | |
| 1416 } | |
| 1417 if (type.nextOf().ty == TY.Tvoid) | |
| 1418 { | |
| 1419 if (offend && isMain()) | |
| 1420 { // Add a return 0; statement | |
| 1421 Statement s = new ReturnStatement(Loc(0), new IntegerExp(0)); | |
| 1422 fbody = new CompoundStatement(Loc(0), fbody, s); | |
| 1423 } | |
| 1424 } | |
| 1425 else | |
| 1426 { | |
| 1427 if (offend) | |
| 1428 { | |
| 1429 Expression e; | |
| 1430 version (DMDV1) { | |
| 1431 warning(loc, "no return exp; or assert(0); at end of function"); | |
| 1432 } else { | |
| 1433 error("no return exp; or assert(0); at end of function"); | |
| 1434 } | |
| 1435 if (global.params.useAssert && | |
| 1436 !global.params.useInline) | |
| 1437 { /* Add an assert(0, msg); where the missing return | |
| 1438 * should be. | |
| 1439 */ | |
| 1440 e = new AssertExp( | |
| 1441 endloc, | |
| 1442 new IntegerExp(0), | |
| 1443 new StringExp(loc, "missing return expression") | |
| 1444 ); | |
| 1445 } | |
| 1446 else | |
| 1447 e = new HaltExp(endloc); | |
| 1448 | |
| 1449 e = new CommaExp(Loc(0), e, type.nextOf().defaultInit(Loc(0))); | |
| 1450 e = e.semantic(sc2); | |
| 1451 Statement s = new ExpStatement(Loc(0), e); | |
| 1452 fbody = new CompoundStatement(Loc(0), fbody, s); | |
| 1453 } | |
| 1454 } | |
| 1455 } | |
| 1456 } | |
| 1457 | |
| 1458 { | |
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1459 auto a = new Statements(); |
| 0 | 1460 |
| 1461 // Merge in initialization of 'out' parameters | |
| 1462 if (parameters) | |
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1463 { foreach (Dsymbol s; parameters) |
| 0 | 1464 { |
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1465 auto v = cast(VarDeclaration)s; |
| 0 | 1466 if (v.storage_class & STC.STCout) |
| 1467 { | |
| 1468 assert(v.init); | |
| 1469 ExpInitializer ie = v.init.isExpInitializer(); | |
| 1470 assert(ie); | |
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1471 a.push(new ExpStatement(Loc(0), ie.exp)); |
| 0 | 1472 } |
| 1473 } | |
| 1474 } | |
| 1475 | |
| 1476 if (argptr) | |
| 1477 { // Initialize _argptr to point past non-variadic arg | |
| 1478 version (IN_GCC) { | |
| 73 | 1479 // Handled in FuncDeclaration.toObjFile |
| 1480 v_argptr = argptr; | |
| 1481 v_argptr.init = new VoidInitializer(loc); | |
| 0 | 1482 } else { |
| 73 | 1483 Type t = argptr.type; |
| 1484 VarDeclaration p; | |
| 1485 uint offset; | |
| 1486 | |
| 1487 Expression e1 = new VarExp(Loc(0), argptr); | |
| 1488 if (parameters && parameters.dim) | |
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1489 p = cast(VarDeclaration)parameters[parameters.length - 1]; |
| 73 | 1490 else |
| 1491 p = v_arguments; // last parameter is _arguments[] | |
| 1492 if (p.storage_class & STClazy) | |
| 1493 // If the last parameter is lazy, it's the size of a delegate | |
| 1494 offset = PTRSIZE * 2; | |
| 1495 else | |
| 1496 offset = cast(size_t)p.type.size(); | |
| 1497 offset = (offset + 3) & ~3; // assume stack aligns on 4 | |
| 1498 Expression e = new SymOffExp(Loc(0), p, offset); | |
| 1499 e = new AssignExp(Loc(0), e1, e); | |
| 1500 e.type = t; | |
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1501 a.push(new ExpStatement(Loc(0), e)); |
| 98 | 1502 p.isargptr = true; |
| 0 | 1503 } |
| 1504 } | |
| 1505 | |
| 1506 if (_arguments) | |
| 1507 { | |
| 1508 /* Advance to elements[] member of TypeInfo_Tuple with: | |
| 1509 * _arguments = v_arguments.elements; | |
| 1510 */ | |
| 1511 Expression e = new VarExp(Loc(0), v_arguments); | |
| 1512 e = new DotIdExp(Loc(0), e, Id.elements); | |
| 1513 Expression e1 = new VarExp(Loc(0), _arguments); | |
| 1514 e = new AssignExp(Loc(0), e1, e); | |
| 1515 e.op = TOK.TOKconstruct; | |
| 1516 e = e.semantic(sc2); | |
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1517 a.push(new ExpStatement(Loc(0), e)); |
| 0 | 1518 } |
| 1519 | |
| 1520 // Merge contracts together with body into one compound statement | |
| 1521 | |
| 1522 version (_DH) { | |
| 1523 if (frequire && global.params.useIn) | |
| 1524 { frequire.incontract = 1; | |
| 1525 a.push(frequire); | |
| 1526 } | |
| 1527 } else { | |
| 1528 if (frequire && global.params.useIn) | |
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1529 a.push(frequire); |
| 0 | 1530 } |
| 1531 | |
| 1532 // Precondition invariant | |
| 1533 if (addPreInvariant()) | |
| 1534 { | |
| 1535 Expression e = null; | |
| 1536 if (isDtorDeclaration()) | |
| 1537 { | |
| 1538 // Call invariant directly only if it exists | |
| 1539 InvariantDeclaration inv = ad.inv; | |
| 1540 ClassDeclaration cd = ad.isClassDeclaration(); | |
| 1541 | |
| 1542 while (!inv && cd) | |
| 1543 { | |
| 1544 cd = cd.baseClass; | |
| 1545 if (!cd) | |
| 1546 break; | |
| 1547 inv = cd.inv; | |
| 1548 } | |
| 1549 if (inv) | |
| 1550 { | |
| 1551 e = new DsymbolExp(Loc(0), inv); | |
| 1552 e = new CallExp(Loc(0), e); | |
| 1553 e = e.semantic(sc2); | |
| 1554 } | |
| 1555 } | |
| 1556 else | |
| 1557 { // Call invariant virtually | |
| 1558 Expression v = new ThisExp(Loc(0)); | |
| 1559 v.type = vthis.type; | |
| 1560 version (STRUCTTHISREF) { | |
| 1561 if (ad.isStructDeclaration()) | |
| 1562 v = v.addressOf(sc); | |
| 1563 } | |
| 1564 Expression se = new StringExp(Loc(0), "null this"); | |
| 1565 se = se.semantic(sc); | |
| 1566 se.type = Type.tchar.arrayOf(); | |
| 1567 e = new AssertExp(loc, v, se); | |
| 1568 } | |
| 1569 if (e) | |
| 1570 { | |
|
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diff
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|
1571 auto s = new ExpStatement(Loc(0), e); |
|
c77e9f4f1793
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|
1572 a.push(s); |
| 0 | 1573 } |
| 1574 } | |
| 1575 | |
| 1576 if (fbody) | |
|
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|
1577 a.push(fbody); |
| 0 | 1578 |
| 1579 if (fensure) | |
| 1580 { | |
|
122
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Statements -> Vector
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diff
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|
1581 a.push(returnLabel.statement); |
| 0 | 1582 |
| 1583 if (type.nextOf().ty != TY.Tvoid) | |
| 1584 { | |
| 1585 // Create: return vresult; | |
| 1586 assert(vresult); | |
| 1587 Expression e = new VarExp(Loc(0), vresult); | |
| 1588 if (tintro) | |
| 1589 { e = e.implicitCastTo(sc, tintro.nextOf()); | |
| 1590 e = e.semantic(sc); | |
| 1591 } | |
|
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diff
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|
1592 auto s = new ReturnStatement(Loc(0), e); |
|
c77e9f4f1793
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parents:
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diff
changeset
|
1593 a.push(s); |
| 0 | 1594 } |
| 1595 } | |
| 1596 | |
| 1597 fbody = new CompoundStatement(Loc(0), a); | |
| 1598 version (DMDV2) { | |
| 1599 /* Append destructor calls for parameters as finally blocks. | |
| 1600 */ | |
| 1601 if (parameters) | |
|
77
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diff
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|
1602 { foreach(Dsymbol symb; parameters) |
| 0 | 1603 { |
|
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diff
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|
1604 auto v = cast(VarDeclaration)symb; |
| 0 | 1605 |
| 1606 if (v.storage_class & (STC.STCref | STC.STCout)) | |
| 1607 continue; | |
| 1608 | |
| 1609 /* Don't do this for static arrays, since static | |
| 1610 * arrays are called by reference. Remove this | |
| 1611 * when we change them to call by value. | |
| 1612 */ | |
| 1613 if (v.type.toBasetype().ty == TY.Tsarray) | |
| 1614 continue; | |
| 1615 | |
| 1616 Expression e = v.callAutoDtor(sc); | |
| 1617 if (e) | |
| 1618 { Statement s = new ExpStatement(Loc(0), e); | |
| 1619 s = s.semantic(sc); | |
| 1620 if (fbody.blockExit() == BE.BEfallthru) | |
| 1621 fbody = new CompoundStatement(Loc(0), fbody, s); | |
| 1622 else | |
| 1623 fbody = new TryFinallyStatement(Loc(0), fbody, s); | |
| 1624 } | |
| 1625 } | |
| 1626 } | |
| 1627 } | |
| 1628 | |
| 1629 static if (true) { | |
| 1630 if (isSynchronized()) | |
| 1631 { /* Wrap the entire function body in a synchronized statement | |
| 1632 */ | |
| 1633 ClassDeclaration cd = parent.isClassDeclaration(); | |
| 1634 if (cd) | |
| 1635 { | |
| 1636 ///version (TARGET_WINDOS) { | |
| 1637 if (/*config.flags2 & CFG2.CFG2seh &&*/ // always on for WINDOS | |
| 1638 !isStatic() && !fbody.usesEH()) | |
| 1639 { | |
| 1640 /* The back end uses the "jmonitor" hack for syncing; | |
| 1641 * no need to do the sync at this level. | |
| 1642 */ | |
| 1643 } | |
| 1644 else | |
| 1645 ///} | |
| 1646 { | |
| 1647 Expression vsync; | |
| 1648 if (isStatic()) | |
| 1649 { | |
| 1650 // The monitor is in the ClassInfo | |
| 1651 vsync = new DotIdExp(loc, new DsymbolExp(loc, cd), Id.classinfo_); | |
| 1652 } | |
| 1653 else | |
| 1654 { // 'this' is the monitor | |
| 1655 vsync = new VarExp(loc, vthis); | |
| 1656 } | |
| 1657 fbody = new PeelStatement(fbody); // don't redo semantic() | |
| 1658 fbody = new SynchronizedStatement(loc, vsync, fbody); | |
| 1659 fbody = fbody.semantic(sc2); | |
| 1660 } | |
| 1661 } | |
| 1662 else | |
| 1663 { | |
| 1664 error("synchronized function %s must be a member of a class", toChars()); | |
| 1665 } | |
| 1666 } | |
| 1667 } | |
| 1668 } | |
| 1669 | |
| 1670 sc2.callSuper = 0; | |
| 1671 sc2.pop(); | |
| 1672 } | |
| 1673 semanticRun = 4; | |
| 1674 } | |
| 1675 | |
| 1676 // called from semantic3 | |
| 1677 void varArgs(Scope sc, TypeFunction, ref VarDeclaration, ref VarDeclaration) | |
| 1678 { | |
| 1679 assert(false); | |
| 1680 } | |
|
93
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|
1681 |
|
df6d0f967680
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|
1682 override void toCBuffer(OutBuffer buf, HdrGenState* hgs) |
| 0 | 1683 { |
|
93
df6d0f967680
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parents:
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diff
changeset
|
1684 // writef("FuncDeclaration.toCBuffer() '%s'\n", toChars()); |
|
df6d0f967680
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diff
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|
1685 |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
91
diff
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|
1686 StorageClassDeclaration.stcToCBuffer(buf, storage_class); |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
91
diff
changeset
|
1687 type.toCBuffer(buf, ident, hgs); |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
91
diff
changeset
|
1688 bodyToCBuffer(buf, hgs); |
| 0 | 1689 } |
| 1690 | |
|
93
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
Trass3r
parents:
91
diff
changeset
|
1691 void bodyToCBuffer(OutBuffer buf, HdrGenState* hgs) |
| 0 | 1692 { |
|
93
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
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diff
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|
1693 if (fbody && |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
91
diff
changeset
|
1694 (!hgs.hdrgen || hgs.tpltMember || canInline(1,1)) |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
Trass3r
parents:
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diff
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|
1695 ) |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
91
diff
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|
1696 { |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
91
diff
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|
1697 buf.writenl(); |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
91
diff
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|
1698 |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
91
diff
changeset
|
1699 // in{} |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
91
diff
changeset
|
1700 if (frequire) |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
91
diff
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|
1701 { |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
91
diff
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|
1702 buf.writestring("in"); |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
91
diff
changeset
|
1703 buf.writenl(); |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
91
diff
changeset
|
1704 frequire.toCBuffer(buf, hgs); |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
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diff
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|
1705 } |
|
df6d0f967680
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diff
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|
1706 |
|
df6d0f967680
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diff
changeset
|
1707 // out{} |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
91
diff
changeset
|
1708 if (fensure) |
|
df6d0f967680
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parents:
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diff
changeset
|
1709 { |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
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diff
changeset
|
1710 buf.writestring("out"); |
|
df6d0f967680
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parents:
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diff
changeset
|
1711 if (outId) |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
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diff
changeset
|
1712 { |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
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diff
changeset
|
1713 buf.writebyte('('); |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
91
diff
changeset
|
1714 buf.writestring(outId.toChars()); |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
Trass3r
parents:
91
diff
changeset
|
1715 buf.writebyte(')'); |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
Trass3r
parents:
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diff
changeset
|
1716 } |
|
df6d0f967680
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parents:
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diff
changeset
|
1717 buf.writenl(); |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
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diff
changeset
|
1718 fensure.toCBuffer(buf, hgs); |
|
df6d0f967680
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parents:
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diff
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|
1719 } |
|
df6d0f967680
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diff
changeset
|
1720 |
|
df6d0f967680
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diff
changeset
|
1721 if (frequire || fensure) |
|
df6d0f967680
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diff
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|
1722 { |
|
df6d0f967680
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diff
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|
1723 buf.writestring("body"); |
|
df6d0f967680
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parents:
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diff
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|
1724 buf.writenl(); |
|
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parents:
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diff
changeset
|
1725 } |
|
df6d0f967680
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diff
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|
1726 |
|
df6d0f967680
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diff
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|
1727 buf.writebyte('{'); |
|
df6d0f967680
implemented a whole bunch of methods to make phobos 2.035 compile
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parents:
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diff
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|
1728 buf.writenl(); |
|
df6d0f967680
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parents:
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diff
changeset
|
1729 fbody.toCBuffer(buf, hgs); |
|
df6d0f967680
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parents:
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diff
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|
1730 buf.writebyte('}'); |
|
df6d0f967680
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diff
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|
1731 buf.writenl(); |
|
df6d0f967680
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diff
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|
1732 } |
|
df6d0f967680
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diff
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|
1733 else |
|
df6d0f967680
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diff
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|
1734 { buf.writeByte(';'); |
|
df6d0f967680
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diff
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|
1735 buf.writenl(); |
|
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diff
changeset
|
1736 } |
| 0 | 1737 } |
| 1738 | |
| 1739 /**************************************************** | |
| 1740 * Determine if 'this' overrides fd. | |
| 1741 * Return true if it does. | |
| 1742 */ | |
| 1743 bool overrides(FuncDeclaration fd) | |
| 1744 { | |
| 1745 bool result = false; | |
| 1746 | |
| 1747 if (fd.ident == ident) | |
| 1748 { | |
| 1749 int cov = type.covariant(fd.type); | |
| 1750 if (cov) | |
| 1751 { | |
| 1752 ClassDeclaration cd1 = toParent().isClassDeclaration(); | |
| 1753 ClassDeclaration cd2 = fd.toParent().isClassDeclaration(); | |
| 1754 | |
| 1755 if (cd1 && cd2 && cd2.isBaseOf(cd1, null)) | |
| 1756 result = true; | |
| 1757 } | |
| 1758 } | |
| 1759 return result; | |
| 1760 } | |
| 1761 | |
| 1762 /************************************************* | |
| 1763 * Find index of function in vtbl[0..dim] that | |
| 1764 * this function overrides. | |
| 1765 * Returns: | |
| 1766 * -1 didn't find one | |
| 1767 * -2 can't determine because of forward references | |
| 1768 */ | |
| 1769 int findVtblIndex(Array vtbl, int dim) | |
| 1770 { | |
| 1771 for (int vi = 0; vi < dim; vi++) | |
| 1772 { | |
| 1773 FuncDeclaration fdv = (cast(Dsymbol)vtbl.data[vi]).isFuncDeclaration(); | |
| 1774 if (fdv && fdv.ident is ident) | |
| 1775 { | |
| 1776 int cov = type.covariant(fdv.type); | |
| 1777 //printf("\tbaseclass cov = %d\n", cov); | |
| 1778 switch (cov) | |
| 1779 { | |
| 1780 case 0: // types are distinct | |
| 1781 break; | |
| 1782 | |
| 1783 case 1: | |
| 1784 return vi; | |
| 1785 | |
| 1786 case 2: | |
| 1787 //type.print(); | |
| 1788 //fdv.type.print(); | |
| 1789 //printf("%s %s\n", type.deco, fdv.type.deco); | |
| 1790 error("of type %s overrides but is not covariant with %s of type %s", | |
| 1791 type.toChars(), fdv.toPrettyChars(), fdv.type.toChars()); | |
| 1792 break; | |
| 1793 | |
| 1794 case 3: | |
| 1795 return -2; // forward references | |
| 1796 } | |
| 1797 } | |
| 1798 } | |
| 1799 return -1; | |
| 1800 } | |
| 1801 | |
| 1802 /**************************************************** | |
| 1803 * Overload this FuncDeclaration with the new one f. | |
| 1804 * Return !=0 if successful; i.e. no conflict. | |
| 1805 */ | |
| 72 | 1806 override bool overloadInsert(Dsymbol s) |
| 0 | 1807 { |
| 1808 FuncDeclaration f; | |
| 1809 AliasDeclaration a; | |
| 1810 | |
| 1811 //writef("FuncDeclaration.overloadInsert(%s)\n", s.toChars()); | |
| 1812 a = s.isAliasDeclaration(); | |
| 1813 if (a) | |
| 1814 { | |
| 1815 if (overnext) | |
| 1816 return overnext.overloadInsert(a); | |
| 1817 | |
| 1818 if (!a.aliassym && a.type.ty != TY.Tident && a.type.ty != TY.Tinstance) | |
| 1819 { | |
| 1820 //writef("\ta = '%s'\n", a.type.toChars()); | |
| 1821 return false; | |
| 1822 } | |
| 1823 overnext = a; | |
| 1824 //printf("\ttrue: no conflict\n"); | |
| 1825 return true; | |
| 1826 } | |
| 1827 f = s.isFuncDeclaration(); | |
| 1828 if (!f) | |
| 1829 return false; | |
| 1830 | |
| 1831 static if (false) { | |
| 1832 /* Disable this check because: | |
| 1833 * const void foo(); | |
| 1834 * semantic() isn't run yet on foo(), so the const hasn't been | |
| 1835 * applied yet. | |
| 1836 */ | |
| 1837 if (type) | |
| 1838 { | |
| 1839 printf("type = %s\n", type.toChars()); | |
| 1840 printf("f.type = %s\n", f.type.toChars()); | |
| 1841 } | |
| 1842 if (type && f.type && // can be null for overloaded constructors | |
| 1843 f.type.covariant(type) && | |
| 1844 f.type.mod == type.mod && | |
| 1845 !isFuncAliasDeclaration()) | |
| 1846 { | |
| 1847 //printf("\tfalse: conflict %s\n", kind()); | |
| 1848 return false; | |
| 1849 } | |
| 1850 } | |
| 1851 | |
| 1852 if (overnext) | |
| 1853 return overnext.overloadInsert(f); | |
| 1854 overnext = f; | |
| 1855 //printf("\ttrue: no conflict\n"); | |
| 1856 return true; | |
| 1857 } | |
| 1858 | |
| 1859 FuncDeclaration overloadExactMatch(Type t) | |
| 1860 { | |
| 1861 Param1 p; | |
| 1862 p.t = t; | |
| 1863 p.f = null; | |
|
17
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|
1864 overloadApply(this, &p.fp1, &p); |
| 0 | 1865 return p.f; |
| 1866 } | |
| 1867 | |
| 1868 FuncDeclaration overloadResolve(Loc loc, Expression ethis, Expressions arguments, int flags = 0) | |
| 1869 { | |
| 1870 TypeFunction tf; | |
| 1871 Match m; | |
| 1872 | |
| 1873 static if (false) { | |
| 1874 printf("FuncDeclaration.overloadResolve('%s')\n", toChars()); | |
| 1875 if (arguments) | |
| 1876 { | |
| 1877 int i; | |
| 1878 | |
| 1879 for (i = 0; i < arguments.dim; i++) | |
| 1880 { | |
| 1881 Expression arg; | |
| 1882 | |
| 1883 arg = cast(Expression)arguments.data[i]; | |
| 1884 assert(arg.type); | |
| 1885 printf("\t%s: ", arg.toChars()); | |
| 1886 arg.type.print(); | |
| 1887 } | |
| 1888 } | |
| 1889 } | |
| 1890 | |
| 1891 m.last = MATCH.MATCHnomatch; | |
| 1892 overloadResolveX(&m, this, ethis, arguments); | |
| 1893 | |
| 1894 if (m.count == 1) // exactly one match | |
| 1895 { | |
| 1896 return m.lastf; | |
| 1897 } | |
| 1898 else | |
| 1899 { | |
| 1900 scope OutBuffer buf = new OutBuffer(); | |
| 1901 | |
| 1902 buf.writeByte('('); | |
| 1903 if (arguments) | |
| 1904 { | |
| 1905 HdrGenState hgs; | |
| 1906 | |
| 1907 argExpTypesToCBuffer(buf, arguments, &hgs); | |
| 1908 buf.writeByte(')'); | |
| 1909 if (ethis) | |
| 1910 ethis.type.modToBuffer(buf); | |
| 1911 } | |
| 1912 else | |
| 1913 buf.writeByte(')'); | |
| 1914 | |
| 1915 if (m.last == MATCH.MATCHnomatch) | |
| 1916 { | |
| 1917 if (flags & 1) // if do not print error messages | |
| 1918 return null; // no match | |
| 1919 | |
| 1920 tf = cast(TypeFunction)type; | |
| 1921 | |
| 1922 scope OutBuffer buf2 = new OutBuffer(); | |
| 1923 tf.modToBuffer(buf2); | |
| 1924 | |
| 1925 //printf("tf = %s, args = %s\n", tf.deco, ((Expression *)arguments.data[0]).type.deco); | |
| 1926 error(loc, "%s%s is not callable using argument types %s", | |
|
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1927 Parameter.argsTypesToChars(tf.parameters, tf.varargs), |
| 0 | 1928 buf2.toChars(), |
| 1929 buf.toChars()); | |
| 1930 return m.anyf; // as long as it's not a FuncAliasDeclaration | |
| 1931 } | |
| 1932 else | |
| 1933 { | |
| 1934 static if (true) { | |
| 1935 TypeFunction t1 = cast(TypeFunction)m.lastf.type; | |
| 1936 TypeFunction t2 = cast(TypeFunction)m.nextf.type; | |
| 1937 | |
| 1938 error(loc, "called with argument types:\n\t(%s)\nmatches both:\n\t%s%s\nand:\n\t%s%s", | |
| 1939 buf.toChars(), | |
|
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1940 m.lastf.toPrettyChars(), Parameter.argsTypesToChars(t1.parameters, t1.varargs), |
|
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1941 m.nextf.toPrettyChars(), Parameter.argsTypesToChars(t2.parameters, t2.varargs)); |
| 0 | 1942 } else { |
| 1943 error(loc, "overloads %s and %s both match argument list for %s", | |
| 1944 m.lastf.type.toChars(), | |
| 1945 m.nextf.type.toChars(), | |
| 1946 m.lastf.toChars()); | |
| 1947 } | |
| 1948 return m.lastf; | |
| 1949 } | |
| 1950 } | |
| 1951 } | |
| 1952 | |
| 1953 /************************************* | |
| 1954 * Determine partial specialization order of 'this' vs g. | |
| 1955 * This is very similar to TemplateDeclaration.leastAsSpecialized(). | |
| 1956 * Returns: | |
| 1957 * match 'this' is at least as specialized as g | |
| 1958 * 0 g is more specialized than 'this' | |
| 1959 */ | |
| 1960 MATCH leastAsSpecialized(FuncDeclaration g) | |
| 1961 { | |
| 1962 version (LOG_LEASTAS) { | |
| 1963 printf("%s.leastAsSpecialized(%s)\n", toChars(), g.toChars()); | |
| 1964 } | |
| 1965 | |
| 1966 /* This works by calling g() with f()'s parameters, and | |
| 1967 * if that is possible, then f() is at least as specialized | |
| 1968 * as g() is. | |
| 1969 */ | |
| 1970 | |
| 1971 TypeFunction tf = cast(TypeFunction)type; | |
| 1972 TypeFunction tg = cast(TypeFunction)g.type; | |
|
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1973 size_t nfparams = Parameter.dim(tf.parameters); |
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1974 size_t ngparams = Parameter.dim(tg.parameters); |
| 0 | 1975 MATCH match = MATCHexact; |
| 1976 | |
| 1977 /* If both functions have a 'this' pointer, and the mods are not | |
| 1978 * the same and g's is not const, then this is less specialized. | |
| 1979 */ | |
| 1980 if (needThis() && g.needThis()) | |
| 1981 { | |
| 1982 if (tf.mod != tg.mod) | |
| 1983 { | |
| 1984 if (tg.mod == MODconst) | |
| 1985 match = MATCHconst; | |
| 1986 else | |
| 1987 return MATCHnomatch; | |
| 1988 } | |
| 1989 } | |
| 1990 | |
| 1991 /* Create a dummy array of arguments out of the parameters to f() | |
| 1992 */ | |
| 1993 scope Expressions args = new Expressions(); | |
| 1994 args.setDim(nfparams); | |
| 1995 for (int u = 0; u < nfparams; u++) | |
| 1996 { | |
|
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1997 auto p = Parameter.getNth(tf.parameters, u); |
| 0 | 1998 Expression e; |
| 1999 if (p.storageClass & (STCref | STCout)) | |
| 2000 { | |
| 2001 e = new IdentifierExp(Loc(0), p.ident); | |
| 2002 e.type = p.type; | |
| 2003 } | |
| 2004 else | |
| 2005 e = p.type.defaultInit(Loc(0)); | |
| 2006 | |
|
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|
2007 args[u] = e; |
| 0 | 2008 } |
| 2009 | |
| 2010 MATCH m = cast(MATCH) tg.callMatch(null, args); | |
| 2011 if (m) | |
| 2012 { | |
| 2013 /* A variadic parameter list is less specialized than a | |
| 2014 * non-variadic one. | |
| 2015 */ | |
| 2016 if (tf.varargs && !tg.varargs) | |
| 2017 goto L1; // less specialized | |
| 2018 | |
| 2019 version (LOG_LEASTAS) { | |
| 2020 printf(" matches %d, so is least as specialized\n", m); | |
| 2021 } | |
| 2022 return m; | |
| 2023 } | |
| 2024 L1: | |
| 2025 version (LOG_LEASTAS) { | |
| 2026 printf(" doesn't match, so is not as specialized\n"); | |
| 2027 } | |
| 2028 return MATCHnomatch; | |
| 2029 } | |
| 72 | 2030 |
| 0 | 2031 /******************************** |
| 2032 * Labels are in a separate scope, one per function. | |
| 2033 */ | |
| 2034 LabelDsymbol searchLabel(Identifier ident) | |
| 2035 { | |
| 2036 Dsymbol s; | |
| 2037 | |
| 2038 if (!labtab) | |
| 2039 labtab = new DsymbolTable(); // guess we need one | |
| 2040 | |
| 2041 s = labtab.lookup(ident); | |
| 2042 if (!s) | |
| 2043 { | |
| 2044 s = new LabelDsymbol(ident); | |
| 2045 labtab.insert(s); | |
| 2046 } | |
| 2047 | |
| 2048 return cast(LabelDsymbol)s; | |
| 2049 } | |
| 2050 | |
| 2051 /**************************************** | |
| 2052 * If non-static member function that has a 'this' pointer, | |
| 2053 * return the aggregate it is a member of. | |
| 2054 * Otherwise, return null. | |
| 2055 */ | |
| 72 | 2056 override AggregateDeclaration isThis() |
| 0 | 2057 { |
| 2058 AggregateDeclaration ad = null; | |
| 2059 | |
| 2060 //printf("+FuncDeclaration.isThis() '%s'\n", toChars()); | |
| 2061 if ((storage_class & STC.STCstatic) == 0) | |
| 2062 { | |
| 2063 ad = isMember2(); | |
| 2064 } | |
| 2065 //printf("-FuncDeclaration.isThis() %p\n", ad); | |
| 2066 return ad; | |
| 2067 } | |
| 2068 | |
| 2069 AggregateDeclaration isMember2() | |
| 2070 { | |
| 2071 AggregateDeclaration ad = null; | |
| 2072 | |
| 2073 //printf("+FuncDeclaration.isMember2() '%s'\n", toChars()); | |
| 2074 for (Dsymbol s = this; s; s = s.parent) | |
| 2075 { | |
| 2076 //printf("\ts = '%s', parent = '%s', kind = %s\n", s.toChars(), s.parent.toChars(), s.parent.kind()); | |
| 2077 ad = s.isMember(); | |
| 2078 if (ad) | |
| 2079 { //printf("test4\n"); | |
| 2080 break; | |
| 2081 } | |
| 2082 if (!s.parent || (!s.parent.isTemplateInstance())) | |
| 2083 { //printf("test5\n"); | |
| 2084 break; | |
| 2085 } | |
| 2086 } | |
| 2087 //printf("-FuncDeclaration.isMember2() %p\n", ad); | |
| 2088 return ad; | |
| 2089 } | |
| 2090 | |
| 2091 /***************************************** | |
| 2092 * Determine lexical level difference from 'this' to nested function 'fd'. | |
| 2093 * Error if this cannot call fd. | |
| 2094 * Returns: | |
| 2095 * 0 same level | |
| 2096 * -1 increase nesting by 1 (fd is nested within 'this') | |
| 2097 * >0 decrease nesting by number | |
| 2098 */ | |
| 2099 int getLevel(Loc loc, FuncDeclaration fd) // lexical nesting level difference | |
| 2100 { | |
| 2101 int level; | |
| 2102 Dsymbol s; | |
| 2103 Dsymbol fdparent; | |
| 2104 | |
| 2105 //printf("FuncDeclaration.getLevel(fd = '%s')\n", fd.toChars()); | |
| 2106 fdparent = fd.toParent2(); | |
| 2107 if (fdparent == this) | |
| 2108 return -1; | |
| 2109 s = this; | |
| 2110 level = 0; | |
| 2111 while (fd != s && fdparent != s.toParent2()) | |
| 2112 { | |
| 2113 //printf("\ts = '%s'\n", s.toChars()); | |
| 2114 FuncDeclaration thisfd = s.isFuncDeclaration(); | |
| 2115 if (thisfd) | |
| 2116 { | |
| 2117 if (!thisfd.isNested() && !thisfd.vthis) | |
| 2118 goto Lerr; | |
| 2119 } | |
| 2120 else | |
| 2121 { | |
| 2122 AggregateDeclaration thiscd = s.isAggregateDeclaration(); | |
| 2123 if (thiscd) | |
| 2124 { | |
| 2125 if (!thiscd.isNested()) | |
| 2126 goto Lerr; | |
| 2127 } | |
| 2128 else | |
| 2129 goto Lerr; | |
| 2130 } | |
| 2131 | |
| 2132 s = s.toParent2(); | |
| 2133 assert(s); | |
| 2134 level++; | |
| 2135 } | |
| 2136 return level; | |
| 2137 | |
| 2138 Lerr: | |
| 2139 error(loc, "cannot access frame of function %s", fd.toChars()); | |
| 2140 return 1; | |
| 2141 } | |
| 2142 | |
| 2143 void appendExp(Expression e) | |
| 2144 { | |
| 2145 assert(false); | |
| 2146 } | |
| 2147 | |
| 2148 void appendState(Statement s) | |
| 2149 { | |
| 2150 assert(false); | |
| 2151 } | |
| 2152 | |
| 72 | 2153 override string mangle() |
| 0 | 2154 out (result) |
| 2155 { | |
| 2156 assert(result.length > 0); | |
| 2157 } | |
| 2158 body | |
| 2159 { | |
| 2160 if (isMain()) { | |
| 2161 return "_Dmain"; | |
| 2162 } | |
| 2163 | |
| 2164 if (isWinMain() || isDllMain() || ident == Id.tls_get_addr) | |
| 2165 return ident.toChars(); | |
| 2166 | |
| 2167 assert(this); | |
| 2168 | |
| 2169 return Declaration.mangle(); | |
| 2170 } | |
| 2171 | |
| 72 | 2172 override string toPrettyChars() |
| 0 | 2173 { |
| 2174 if (isMain()) | |
| 2175 return "D main"; | |
| 2176 else | |
| 2177 return Dsymbol.toPrettyChars(); | |
| 2178 } | |
| 2179 | |
| 2180 int isMain() | |
| 2181 { | |
| 2182 return ident is Id.main && linkage != LINK.LINKc && !isMember() && !isNested(); | |
| 2183 } | |
| 2184 | |
| 2185 int isWinMain() | |
| 2186 { | |
| 2187 //printf("FuncDeclaration::isWinMain() %s\n", toChars()); | |
| 2188 static if (false) { | |
| 2189 int x = ident == Id.WinMain && | |
| 2190 linkage != LINK.LINKc && !isMember(); | |
| 2191 printf("%s\n", x ? "yes" : "no"); | |
| 2192 return x; | |
| 2193 } else { | |
| 2194 return ident == Id.WinMain && linkage != LINK.LINKc && !isMember(); | |
| 2195 } | |
| 2196 } | |
| 2197 | |
| 2198 int isDllMain() | |
| 2199 { | |
| 2200 return ident == Id.DllMain && linkage != LINK.LINKc && !isMember(); | |
| 2201 } | |
| 2202 | |
| 2203 /********************************** | |
| 2204 * Determine if function is a builtin one that we can | |
| 2205 * evaluate at compile time. | |
| 2206 */ | |
| 2207 BUILTIN isBuiltin() | |
| 2208 { | |
| 2209 static string FeZe = "FNaNbeZe"; // pure nothrow real function(real) | |
| 2210 | |
| 2211 //printf("FuncDeclaration::isBuiltin() %s\n", toChars()); | |
| 2212 if (builtin == BUILTIN.BUILTINunknown) | |
| 2213 { | |
| 2214 builtin = BUILTIN.BUILTINnot; | |
| 2215 if (parent && parent.isModule()) | |
| 2216 { | |
| 2217 // If it's in the std.math package | |
| 2218 if (parent.ident == Id.math && parent.parent && parent.parent.ident == Id.std && !parent.parent.parent) | |
| 2219 { | |
| 2220 //printf("deco = %s\n", type.deco); | |
| 2221 if (type.deco == FeZe) | |
| 2222 { | |
| 2223 if (ident == Id.sin) | |
| 2224 builtin = BUILTIN.BUILTINsin; | |
| 2225 else if (ident == Id.cos) | |
| 2226 builtin = BUILTIN.BUILTINcos; | |
| 2227 else if (ident == Id.tan) | |
| 2228 builtin = BUILTIN.BUILTINtan; | |
| 2229 else if (ident == Id._sqrt) | |
| 2230 builtin = BUILTIN.BUILTINsqrt; | |
| 2231 else if (ident == Id.fabs) | |
| 2232 builtin = BUILTIN.BUILTINfabs; | |
| 2233 //printf("builtin = %d\n", builtin); | |
| 2234 } | |
| 2235 // if float or double versions | |
| 2236 else if (type.deco == "FNaNbdZd" || type.deco == "FNaNbfZf") | |
| 2237 { | |
| 2238 if (ident == Id._sqrt) | |
| 2239 builtin = BUILTIN.BUILTINsqrt; | |
| 2240 } | |
| 2241 } | |
| 2242 } | |
| 2243 } | |
| 2244 | |
| 2245 return builtin; | |
| 2246 } | |
| 2247 | |
| 72 | 2248 override bool isExport() |
| 0 | 2249 { |
| 2250 return protection == PROT.PROTexport; | |
| 2251 } | |
| 2252 | |
| 72 | 2253 override bool isImportedSymbol() |
| 0 | 2254 { |
| 2255 //printf("isImportedSymbol()\n"); | |
| 2256 //printf("protection = %d\n", protection); | |
| 2257 return (protection == PROT.PROTexport) && !fbody; | |
| 2258 } | |
| 2259 | |
| 72 | 2260 override bool isAbstract() |
| 0 | 2261 { |
| 2262 return (storage_class & STC.STCabstract) != 0; | |
| 2263 } | |
| 2264 | |
| 72 | 2265 override bool isCodeseg() |
| 0 | 2266 { |
|
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|
2267 return true; // functions are always in the code segment |
| 0 | 2268 } |
| 2269 | |
| 72 | 2270 override bool isOverloadable() |
| 0 | 2271 { |
| 63 | 2272 return 1; // functions can be overloaded |
| 0 | 2273 } |
| 2274 | |
| 2275 bool isPure() | |
| 2276 { | |
| 2277 //printf("FuncDeclaration::isPure() '%s'\n", toChars()); | |
| 2278 assert(type.ty == TY.Tfunction); | |
| 2279 return (cast(TypeFunction)this.type).ispure; | |
| 2280 } | |
| 2281 | |
|
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|
2282 int isSafe() |
|
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2283 { |
|
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|
2284 assert(type.ty == TY.Tfunction); |
|
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|
2285 return (cast(TypeFunction)this.type).trust == TRUST.TRUSTsafe; |
|
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2286 } |
|
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|
2287 |
|
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|
2288 int isTrusted() |
|
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|
2289 { |
|
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|
2290 assert(type.ty == TY.Tfunction); |
|
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|
2291 return (cast(TypeFunction)this.type).trust == TRUST.TRUSTtrusted; |
|
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|
2292 } |
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|
2293 |
| 0 | 2294 bool isNested() |
| 2295 { | |
| 2296 //if (!toParent()) | |
| 2297 //printf("FuncDeclaration.isNested('%s') parent=%p\n", toChars(), parent); | |
| 2298 //printf("\ttoParent2() = '%s'\n", toParent2().toChars()); | |
| 2299 return ((storage_class & STC.STCstatic) == 0) && | |
| 2300 (toParent2().isFuncDeclaration() !is null); | |
| 2301 } | |
| 2302 | |
| 72 | 2303 override bool needThis() |
| 0 | 2304 { |
| 2305 //printf("FuncDeclaration.needThis() '%s'\n", toChars()); | |
| 2306 bool needThis = isThis() !is null; | |
| 2307 | |
| 2308 //printf("\t%d\n", i); | |
| 2309 if (!needThis) { | |
| 2310 if (auto fa = isFuncAliasDeclaration()) { | |
| 2311 needThis = fa.funcalias.needThis(); | |
| 2312 } | |
| 2313 } | |
| 2314 | |
| 2315 return needThis; | |
| 2316 } | |
| 2317 | |
| 2318 bool isVirtual() | |
| 2319 { | |
| 2320 static if (false) { | |
| 2321 printf("FuncDeclaration.isVirtual(%s)\n", toChars()); | |
| 2322 printf("isMember:%p isStatic:%d private:%d ctor:%d !Dlinkage:%d\n", isMember(), isStatic(), protection == PROT.PROTprivate, isCtorDeclaration(), linkage != LINK.LINKd); | |
| 2323 printf("result is %d\n", | |
| 2324 isMember() && !(isStatic() || protection == PROT.PROTprivate || protection == PROT.PROTpackage) && toParent().isClassDeclaration()); | |
| 2325 } | |
| 2326 return isMember() && !(isStatic() || protection == PROT.PROTprivate || protection == PROT.PROTpackage) && toParent().isClassDeclaration(); | |
| 2327 } | |
| 2328 | |
| 72 | 2329 override int isFinal() |
| 0 | 2330 { |
| 2331 ClassDeclaration cd; | |
| 2332 static if (false) { | |
| 2333 printf("FuncDeclaration.isFinal(%s)\n", toChars()); | |
| 2334 printf("%p %d %d %d %d\n", isMember(), isStatic(), protection == PROT.PROTprivate, isCtorDeclaration(), linkage != LINK.LINKd); | |
| 2335 printf("result is %d\n", | |
| 2336 isMember() && !(isStatic() || protection == PROT.PROTprivate || protection == PROT.PROTpackage) && (cd = toParent().isClassDeclaration()) !is null && cd.storage_class & STC.STCfinal); | |
| 2337 } | |
| 2338 return isMember() && (Declaration.isFinal() || ((cd = toParent().isClassDeclaration()) !is null && cd.storage_class & STC.STCfinal)); | |
| 2339 } | |
| 2340 | |
| 2341 bool addPreInvariant() | |
| 2342 { | |
| 2343 AggregateDeclaration ad = isThis(); | |
| 2344 return (ad && | |
| 2345 //ad.isClassDeclaration() && | |
| 2346 global.params.useInvariants && | |
| 2347 (protection == PROT.PROTpublic || protection == PROT.PROTexport) && | |
| 2348 !naked && | |
| 2349 ident !is Id.cpctor); | |
| 2350 } | |
| 2351 | |
| 2352 bool addPostInvariant() | |
| 2353 { | |
| 2354 AggregateDeclaration ad = isThis(); | |
| 2355 return (ad && ad.inv && | |
| 2356 //ad.isClassDeclaration() && | |
| 2357 global.params.useInvariants && | |
| 2358 (protection == PROT.PROTpublic || protection == PROT.PROTexport) && | |
| 2359 !naked && | |
| 2360 ident !is Id.cpctor); | |
| 2361 } | |
| 2362 | |
| 63 | 2363 /************************************* |
| 2364 * Attempt to interpret a function given the arguments. | |
| 2365 * Input: | |
| 2366 * istate state for calling function (null if none) | |
| 2367 * arguments function arguments | |
| 2368 * thisarg 'this', if a needThis() function, null if not. | |
| 2369 * | |
| 2370 * Return result expression if successful, null if not. | |
| 2371 */ | |
| 2372 Expression interpret(InterState istate, Expressions arguments, Expression thisarg = null) | |
| 0 | 2373 { |
| 63 | 2374 version (LOG) { |
| 2375 printf("\n********\nFuncDeclaration.interpret(istate = %p) %s\n", istate, toChars()); | |
| 2376 printf("cantInterpret = %d, semanticRun = %d\n", cantInterpret, semanticRun); | |
| 2377 } | |
| 2378 if (global.errors) | |
| 2379 return null; | |
| 107 | 2380 version(DMDV1) |
| 2381 { | |
| 63 | 2382 if (ident == Id.aaLen) |
| 2383 return interpret_aaLen(istate, arguments); | |
| 2384 else if (ident == Id.aaKeys) | |
| 2385 return interpret_aaKeys(istate, arguments); | |
| 2386 else if (ident == Id.aaValues) | |
| 2387 return interpret_aaValues(istate, arguments); | |
| 107 | 2388 } |
| 2389 else version(DMDV2) | |
| 2390 { | |
| 2391 if (thisarg && (!arguments || arguments.dim == 0)) | |
| 2392 { | |
| 2393 if (ident == Id.length) | |
| 2394 return interpret_length(istate, thisarg); | |
| 2395 else if (ident == Id.keys) | |
| 2396 return interpret_keys(istate, thisarg, this); | |
| 2397 else if (ident == Id.values) | |
| 2398 return interpret_values(istate, thisarg, this); | |
| 2399 } | |
| 2400 } | |
| 2401 | |
| 63 | 2402 if (cantInterpret || semanticRun == 3) |
| 2403 return null; | |
| 2404 | |
| 2405 if (!fbody) | |
| 2406 { | |
| 2407 cantInterpret = 1; | |
| 2408 return null; | |
| 2409 } | |
| 2410 | |
| 2411 if (semanticRun < 3 && scope_) | |
| 2412 { | |
| 2413 semantic3(scope_); | |
| 2414 if (global.errors) // if errors compiling this function | |
| 2415 return null; | |
| 2416 } | |
| 2417 if (semanticRun < 4) | |
| 2418 return null; | |
| 2419 | |
| 2420 Type tb = type.toBasetype(); | |
| 2421 assert(tb.ty == Tfunction); | |
| 2422 TypeFunction tf = cast(TypeFunction)tb; | |
| 2423 Type tret = tf.next.toBasetype(); | |
| 135 | 2424 if (tf.varargs && arguments && parameters && arguments.dim != parameters.dim) |
| 63 | 2425 { |
| 2426 cantInterpret = 1; | |
| 135 | 2427 error("C-style variadic functions are not yet implemented in CTFE"); |
| 63 | 2428 return null; |
| 2429 } | |
| 2430 | |
| 2431 // Ensure there are no lazy parameters | |
| 2432 if (tf.parameters) | |
| 2433 { | |
|
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2434 size_t dim = Parameter.dim(tf.parameters); |
| 63 | 2435 for (size_t i = 0; i < dim; i++) |
| 2436 { | |
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2437 auto arg = Parameter.getNth(tf.parameters, i); |
| 63 | 2438 if (arg.storageClass & STClazy) |
| 2439 { | |
| 2440 cantInterpret = 1; | |
| 2441 return null; | |
| 2442 } | |
| 2443 } | |
| 2444 } | |
| 2445 | |
| 2446 scope InterState istatex = new InterState(); | |
| 2447 istatex.caller = istate; | |
| 2448 istatex.fd = this; | |
| 2449 istatex.localThis = thisarg; | |
| 2450 | |
| 2451 scope Expressions vsave = new Expressions(); // place to save previous parameter values | |
| 2452 size_t dim = 0; | |
| 2453 if (needThis() && !thisarg) | |
| 2454 { | |
| 2455 cantInterpret = 1; | |
| 2456 // error, no this. Prevent segfault. | |
| 2457 error("need 'this' to access member %s", toChars()); | |
| 2458 return null; | |
| 2459 } | |
| 2460 if (arguments) | |
| 2461 { | |
| 2462 dim = arguments.dim; | |
| 2463 assert(!dim || (parameters && (parameters.dim == dim))); | |
| 2464 vsave.setDim(dim); | |
| 2465 | |
| 2466 /* Evaluate all the arguments to the function, | |
| 2467 * store the results in eargs[] | |
| 2468 */ | |
| 2469 scope Expressions eargs = new Expressions(); | |
| 2470 eargs.setDim(dim); | |
| 2471 | |
| 2472 for (size_t i = 0; i < dim; i++) | |
| 2473 { | |
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2474 Expression earg = arguments[i]; |
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2475 auto arg = Parameter.getNth(tf.parameters, i); |
| 63 | 2476 |
| 2477 if (arg.storageClass & (STCout | STCref)) | |
| 2478 { | |
| 2479 } | |
| 2480 else | |
| 2481 { /* Value parameters | |
| 2482 */ | |
| 2483 Type ta = arg.type.toBasetype(); | |
| 2484 if (ta.ty == Tsarray && earg.op == TOKaddress) | |
| 2485 { | |
| 2486 /* Static arrays are passed by a simple pointer. | |
| 2487 * Skip past this to get at the actual arg. | |
| 2488 */ | |
| 2489 earg = (cast(AddrExp)earg).e1; | |
| 2490 } | |
| 2491 earg = earg.interpret(istate ? istate : istatex); | |
| 2492 if (earg is EXP_CANT_INTERPRET) | |
| 2493 { | |
| 2494 cantInterpret = 1; | |
| 2495 return null; | |
| 2496 } | |
| 2497 } | |
|
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2498 eargs[i] = earg; |
| 63 | 2499 } |
| 2500 | |
| 2501 for (size_t i = 0; i < dim; i++) | |
| 2502 { | |
|
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2503 auto earg = eargs[i]; |
|
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2504 auto arg = Parameter.getNth(tf.parameters, i); |
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2505 auto v = cast(VarDeclaration)parameters[i]; |
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2506 vsave[i] = v.value; |
| 63 | 2507 version (LOG) { |
| 2508 printf("arg[%d] = %s\n", i, earg.toChars()); | |
| 2509 } | |
| 2510 if (arg.storageClass & (STCout | STCref) && earg.op==TOKvar) | |
| 2511 { | |
| 2512 /* Bind out or ref parameter to the corresponding | |
| 2513 * variable v2 | |
| 2514 */ | |
| 2515 if (!istate) | |
| 2516 { | |
| 2517 cantInterpret = 1; | |
| 2518 error("%s cannot be by passed by reference at compile time", earg.toChars()); | |
| 2519 return null; // can't bind to non-interpreted vars | |
| 2520 } | |
| 2521 // We need to chase down all of the the passed parameters until | |
| 2522 // we find something that isn't a TOKvar, then create a variable | |
| 2523 // containg that expression. | |
| 2524 VarDeclaration v2; | |
| 2525 while (1) | |
| 2526 { | |
| 2527 VarExp ve = cast(VarExp)earg; | |
| 2528 v2 = ve.var.isVarDeclaration(); | |
| 2529 if (!v2) | |
| 2530 { | |
| 2531 cantInterpret = 1; | |
| 2532 return null; | |
| 2533 } | |
| 2534 if (!v2.value || v2.value.op != TOKvar) | |
| 2535 break; | |
| 2536 if ((cast(VarExp)v2.value).var.isSymbolDeclaration()) | |
| 2537 { | |
| 2538 // This can happen if v is a struct initialized to | |
| 2539 // 0 using an __initZ SymbolDeclaration from | |
| 2540 // TypeStruct.defaultInit() | |
| 2541 break; // eg default-initialized variable | |
| 2542 } | |
| 2543 earg = v2.value; | |
| 2544 } | |
| 2545 | |
| 2546 v.value = new VarExp(earg.loc, v2); | |
| 2547 | |
| 2548 /* Don't restore the value of v2 upon function return | |
| 2549 */ | |
| 2550 assert(istate); | |
|
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2551 foreach(size_t j, Dsymbol s2; istate.vars)// (size_t j = 0; j < istate.vars.dim; j++) |
| 63 | 2552 { |
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2553 auto vd = cast(VarDeclaration)s2; |
| 63 | 2554 if (vd == v2) |
| 2555 { | |
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2556 istate.vars[j] = null; |
| 63 | 2557 break; |
| 2558 } | |
| 2559 } | |
| 2560 } | |
| 2561 else | |
| 2562 { | |
| 2563 // Value parameters and non-trivial references | |
| 2564 v.value = earg; | |
| 2565 } | |
| 2566 version (LOG) { | |
| 2567 printf("interpreted arg[%d] = %s\n", i, earg.toChars()); | |
| 2568 } | |
| 2569 } | |
| 2570 } | |
| 2571 // Don't restore the value of 'this' upon function return | |
| 135 | 2572 if (needThis() && thisarg.op == TOKvar && istate) { |
| 63 | 2573 VarDeclaration thisvar = (cast(VarExp)thisarg).var.isVarDeclaration(); |
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2574 foreach (size_t i, Dsymbol s; istate.vars) |
| 63 | 2575 { |
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2576 auto v = cast(VarDeclaration)s; |
| 63 | 2577 if (v == thisvar) |
| 2578 { | |
|
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2579 istate.vars[i] = null; |
| 63 | 2580 break; |
| 2581 } | |
| 2582 } | |
| 2583 } | |
| 2584 | |
| 2585 /* Save the values of the local variables used | |
| 2586 */ | |
| 135 | 2587 scope valueSaves = new Expressions(); |
| 63 | 2588 if (istate && !isNested()) |
| 2589 { | |
| 2590 //printf("saving local variables...\n"); | |
| 2591 valueSaves.setDim(istate.vars.dim); | |
|
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2592 foreach (size_t i, Dsymbol s3; istate.vars) |
| 63 | 2593 { |
|
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2594 if (auto v = cast(VarDeclaration)s3) |
| 63 | 2595 { |
| 2596 //printf("\tsaving [%d] %s = %s\n", i, v.toChars(), v.value ? v.value.toChars() : ""); | |
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|
2597 valueSaves[i] = v.value; |
| 63 | 2598 v.value = null; |
| 2599 } | |
| 2600 } | |
| 2601 } | |
| 2602 | |
| 2603 Expression e = null; | |
| 2604 while (1) | |
| 2605 { | |
| 2606 e = fbody.interpret(istatex); | |
| 2607 if (e is EXP_CANT_INTERPRET) | |
| 2608 { | |
| 2609 version (LOG) { | |
| 2610 printf("function body failed to interpret\n"); | |
| 2611 } | |
| 2612 e = null; | |
| 2613 } | |
| 2614 | |
| 2615 /* This is how we deal with a recursive statement AST | |
| 2616 * that has arbitrary goto statements in it. | |
| 2617 * Bubble up a 'result' which is the target of the goto | |
| 2618 * statement, then go recursively down the AST looking | |
| 2619 * for that statement, then execute starting there. | |
| 2620 */ | |
| 2621 if (e is EXP_GOTO_INTERPRET) | |
| 2622 { | |
| 2623 istatex.start = istatex.gotoTarget; // set starting statement | |
| 2624 istatex.gotoTarget = null; | |
| 2625 } | |
| 2626 else | |
| 2627 break; | |
| 2628 } | |
| 2629 /* Restore the parameter values | |
| 2630 */ | |
| 2631 for (size_t i = 0; i < dim; i++) | |
| 2632 { | |
|
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2633 auto v = cast(VarDeclaration)parameters[i]; |
|
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|
2634 v.value = vsave[i]; |
| 63 | 2635 } |
| 2636 | |
| 2637 if (istate && !isNested()) | |
| 2638 { | |
| 2639 /* Restore the variable values | |
| 2640 */ | |
| 2641 //printf("restoring local variables...\n"); | |
|
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2642 foreach (size_t i , Dsymbol s3; istate.vars) |
| 63 | 2643 { |
|
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2644 if (auto v = cast(VarDeclaration)s3) |
| 63 | 2645 { |
|
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|
2646 v.value = valueSaves[i]; |
| 63 | 2647 //printf("\trestoring [%d] %s = %s\n", i, v.toChars(), v.value ? v.value.toChars() : ""); |
| 2648 } | |
| 2649 } | |
| 2650 } | |
| 2651 return e; | |
| 0 | 2652 } |
| 2653 | |
| 72 | 2654 override void inlineScan() |
| 0 | 2655 { |
| 2656 InlineScanState iss; | |
| 2657 | |
| 2658 version (LOG) { | |
| 2659 printf("FuncDeclaration.inlineScan('%s')\n", toChars()); | |
| 2660 } | |
| 2661 ///memset(&iss, 0, sizeof(iss)); | |
| 2662 iss.fd = this; | |
| 2663 if (fbody) | |
| 2664 { | |
| 2665 inlineNest++; | |
| 2666 fbody = fbody.inlineScan(&iss); | |
| 2667 inlineNest--; | |
| 2668 } | |
| 2669 } | |
| 2670 | |
| 2671 int canInline(int hasthis, int hdrscan = 0) | |
| 2672 { | |
| 2673 int cost; | |
| 2674 | |
| 2675 // #define CANINLINE_LOG 0 | |
| 2676 | |
| 2677 version (CANINLINE_LOG) { | |
| 2678 printf("FuncDeclaration.canInline(hasthis = %d, '%s')\n", hasthis, toChars()); | |
| 2679 } | |
| 2680 | |
| 2681 if (needThis() && !hasthis) | |
| 2682 return 0; | |
| 2683 | |
| 2684 if (inlineNest || (semanticRun < 3 && !hdrscan)) | |
| 2685 { | |
| 2686 version (CANINLINE_LOG) { | |
| 2687 printf("\t1: no, inlineNest = %d, semanticRun = %d\n", inlineNest, semanticRun); | |
| 2688 } | |
| 2689 return 0; | |
| 2690 } | |
| 2691 | |
| 2692 switch (inlineStatus) | |
| 2693 { | |
| 2694 case ILS.ILSyes: | |
| 2695 version (CANINLINE_LOG) { | |
| 2696 printf("\t1: yes %s\n", toChars()); | |
| 2697 } | |
| 2698 return 1; | |
| 2699 | |
| 2700 case ILS.ILSno: | |
| 2701 version (CANINLINE_LOG) { | |
| 2702 printf("\t1: no %s\n", toChars()); | |
| 2703 } | |
| 2704 return 0; | |
| 2705 | |
| 2706 case ILS.ILSuninitialized: | |
| 2707 break; | |
| 2708 | |
| 2709 default: | |
| 2710 assert(0); | |
| 2711 } | |
| 2712 | |
| 2713 if (type) | |
| 2714 { | |
| 2715 assert(type.ty == Tfunction); | |
| 2716 TypeFunction tf = cast(TypeFunction)type; | |
| 2717 if (tf.varargs == 1) // no variadic parameter lists | |
| 2718 goto Lno; | |
| 2719 | |
| 2720 /* Don't inline a function that returns non-void, but has | |
| 2721 * no return expression. | |
| 2722 */ | |
| 2723 if (tf.next && tf.next.ty != Tvoid && | |
| 2724 !(hasReturnExp & 1) && | |
| 2725 !hdrscan) | |
| 2726 goto Lno; | |
| 2727 } | |
| 2728 else | |
| 2729 { | |
| 2730 CtorDeclaration ctor = isCtorDeclaration(); | |
| 2731 if (ctor && ctor.varargs == 1) | |
| 2732 goto Lno; | |
| 2733 } | |
| 2734 | |
| 2735 if ( | |
| 2736 !fbody || | |
| 2737 !hdrscan && | |
| 2738 ( | |
| 2739 /// static if (false) { | |
| 2740 /// isCtorDeclaration() || // cannot because need to convert: | |
| 2741 /// // return; | |
| 2742 /// // to: | |
| 2743 /// // return this; | |
| 2744 /// } | |
| 2745 isSynchronized() || | |
| 2746 isImportedSymbol() || | |
| 2747 /// version (DMDV2) { | |
| 2748 closureVars.dim || // no nested references to this frame | |
| 2749 /// } else { | |
| 2750 /// nestedFrameRef || // no nested references to this frame | |
| 2751 /// } | |
| 2752 (isVirtual() && !isFinal()) | |
| 2753 )) | |
| 2754 { | |
| 2755 goto Lno; | |
| 2756 } | |
| 2757 | |
| 2758 /* If any parameters are Tsarray's (which are passed by reference) | |
| 2759 * or out parameters (also passed by reference), don't do inlining. | |
| 2760 */ | |
| 2761 if (parameters) | |
| 2762 { | |
|
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2763 foreach (Dsymbol s3; parameters) |
| 0 | 2764 { |
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|
2765 auto v = cast(VarDeclaration)s3; |
| 0 | 2766 if (v.isOut() || v.isRef() || v.type.toBasetype().ty == Tsarray) |
| 2767 goto Lno; | |
| 2768 } | |
| 2769 } | |
| 2770 | |
| 2771 InlineCostState ics; | |
| 2772 ///memset(&ics, 0, sizeof(ics)); | |
| 2773 ics.hasthis = hasthis; | |
| 2774 ics.fd = this; | |
| 2775 ics.hdrscan = hdrscan; | |
| 2776 cost = fbody.inlineCost(&ics); | |
| 2777 version (CANINLINE_LOG) { | |
| 2778 printf("cost = %d\n", cost); | |
| 2779 } | |
| 2780 if (cost >= COST_MAX) | |
| 2781 goto Lno; | |
| 2782 | |
| 2783 if (!hdrscan) // Don't scan recursively for header content scan | |
| 2784 inlineScan(); | |
| 2785 | |
| 2786 Lyes: | |
| 2787 if (!hdrscan) // Don't modify inlineStatus for header content scan | |
| 2788 inlineStatus = ILS.ILSyes; | |
| 2789 version (CANINLINE_LOG) { | |
| 2790 printf("\t2: yes %s\n", toChars()); | |
| 2791 } | |
| 2792 return 1; | |
| 2793 | |
| 2794 Lno: | |
| 2795 if (!hdrscan) // Don't modify inlineStatus for header content scan | |
| 2796 inlineStatus = ILS.ILSno; | |
| 2797 version (CANINLINE_LOG) { | |
| 2798 printf("\t2: no %s\n", toChars()); | |
| 2799 } | |
| 2800 return 0; | |
| 2801 } | |
| 2802 | |
|
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|
2803 Expression doInline(InlineScanState* iss, Expression ethis, Expressions arguments) |
| 0 | 2804 { |
| 2805 InlineDoState ids = new InlineDoState(); | |
| 2806 DeclarationExp de; | |
| 2807 Expression e = null; | |
| 2808 | |
| 2809 version (LOG) { | |
| 2810 printf("FuncDeclaration.doInline('%s')\n", toChars()); | |
| 2811 } | |
| 2812 | |
| 2813 ///memset(&ids, 0, sizeof(ids)); | |
| 2814 ids.parent = iss.fd; | |
| 2815 | |
| 2816 // Set up vthis | |
| 2817 if (ethis) | |
| 2818 { | |
| 2819 VarDeclaration vthis; | |
| 2820 ExpInitializer ei; | |
| 2821 VarExp ve; | |
| 2822 | |
| 2823 version (STRUCTTHISREF) { | |
| 2824 if (ethis.type.ty == Tpointer) | |
| 2825 { | |
| 2826 Type t = ethis.type.nextOf(); | |
| 2827 ethis = new PtrExp(ethis.loc, ethis); | |
| 2828 ethis.type = t; | |
| 2829 } | |
| 2830 ei = new ExpInitializer(ethis.loc, ethis); | |
| 2831 | |
| 2832 vthis = new VarDeclaration(ethis.loc, ethis.type, Id.This, ei); | |
| 2833 if (ethis.type.ty != Tclass) | |
| 2834 vthis.storage_class = STCref; | |
| 2835 else | |
| 2836 vthis.storage_class = STCin; | |
| 2837 } else { | |
| 2838 if (ethis.type.ty != Tclass && ethis.type.ty != Tpointer) | |
| 2839 { | |
| 2840 ethis = ethis.addressOf(null); | |
| 2841 } | |
| 2842 | |
| 2843 ei = new ExpInitializer(ethis.loc, ethis); | |
| 2844 | |
| 2845 vthis = new VarDeclaration(ethis.loc, ethis.type, Id.This, ei); | |
| 2846 vthis.storage_class = STCin; | |
| 2847 } | |
| 2848 vthis.linkage = LINKd; | |
| 2849 vthis.parent = iss.fd; | |
| 2850 | |
| 2851 ve = new VarExp(vthis.loc, vthis); | |
| 2852 ve.type = vthis.type; | |
| 2853 | |
| 2854 ei.exp = new AssignExp(vthis.loc, ve, ethis); | |
| 2855 ei.exp.type = ve.type; | |
| 2856 version (STRUCTTHISREF) { | |
| 2857 if (ethis.type.ty != Tclass) | |
| 2858 { | |
| 2859 /* This is a reference initialization, not a simple assignment. | |
| 2860 */ | |
| 2861 ei.exp.op = TOKconstruct; | |
| 2862 } | |
| 2863 } | |
| 2864 | |
| 2865 ids.vthis = vthis; | |
| 2866 } | |
| 2867 | |
| 2868 // Set up parameters | |
| 2869 if (ethis) | |
| 2870 { | |
| 2871 e = new DeclarationExp(Loc(0), ids.vthis); | |
| 2872 e.type = Type.tvoid; | |
| 2873 } | |
| 2874 | |
| 2875 if (arguments && arguments.dim) | |
| 2876 { | |
| 2877 assert(parameters.dim == arguments.dim); | |
| 2878 | |
| 2879 for (int i = 0; i < arguments.dim; i++) | |
| 2880 { | |
|
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2881 auto vfrom = cast(VarDeclaration)parameters[i]; |
| 0 | 2882 VarDeclaration vto; |
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2883 Expression arg = arguments[i]; |
| 0 | 2884 ExpInitializer ei; |
| 2885 VarExp ve; | |
| 2886 | |
| 2887 ei = new ExpInitializer(arg.loc, arg); | |
| 2888 | |
| 2889 vto = new VarDeclaration(vfrom.loc, vfrom.type, vfrom.ident, ei); | |
| 2890 vto.storage_class |= vfrom.storage_class & (STCin | STCout | STClazy | STCref); | |
| 2891 vto.linkage = vfrom.linkage; | |
| 2892 vto.parent = iss.fd; | |
| 2893 //printf("vto = '%s', vto.storage_class = x%x\n", vto.toChars(), vto.storage_class); | |
| 2894 //printf("vto.parent = '%s'\n", iss.fd.toChars()); | |
| 2895 | |
| 2896 ve = new VarExp(vto.loc, vto); | |
| 2897 //ve.type = vto.type; | |
| 2898 ve.type = arg.type; | |
| 2899 | |
| 2900 ei.exp = new AssignExp(vto.loc, ve, arg); | |
| 2901 ei.exp.type = ve.type; | |
| 2902 //ve.type.print(); | |
| 2903 //arg.type.print(); | |
| 2904 //ei.exp.print(); | |
| 2905 | |
| 2906 ids.from.push(cast(void*)vfrom); | |
| 2907 ids.to.push(cast(void*)vto); | |
| 2908 | |
| 2909 de = new DeclarationExp(Loc(0), vto); | |
| 2910 de.type = Type.tvoid; | |
| 2911 | |
| 2912 e = Expression.combine(e, de); | |
| 2913 } | |
| 2914 } | |
| 2915 | |
| 2916 inlineNest++; | |
| 2917 Expression eb = fbody.doInline(ids); | |
| 2918 inlineNest--; | |
| 2919 //eb.type.print(); | |
| 2920 //eb.print(); | |
| 2921 //eb.dump(0); | |
| 2922 return Expression.combine(e, eb); | |
| 2923 } | |
| 2924 | |
| 72 | 2925 override string kind() |
| 0 | 2926 { |
| 2927 return "function"; | |
| 2928 } | |
| 2929 | |
| 72 | 2930 override void toDocBuffer(OutBuffer buf) |
| 0 | 2931 { |
| 2932 assert(false); | |
| 2933 } | |
| 2934 | |
| 2935 FuncDeclaration isUnique() | |
| 2936 { | |
| 2937 assert(false); | |
| 2938 } | |
| 2939 | |
| 2940 /******************************* | |
| 2941 * Look at all the variables in this function that are referenced | |
| 2942 * by nested functions, and determine if a closure needs to be | |
| 2943 * created for them. | |
| 2944 */ | |
| 2945 bool needsClosure() | |
| 2946 { | |
| 2947 /* Need a closure for all the closureVars[] if any of the | |
| 2948 * closureVars[] are accessed by a | |
| 2949 * function that escapes the scope of this function. | |
| 2950 * We take the conservative approach and decide that any function that: | |
| 2951 * 1) is a virtual function | |
| 2952 * 2) has its address taken | |
| 2953 * 3) has a parent that escapes | |
| 2954 * | |
| 2955 * Note that since a non-virtual function can be called by | |
| 2956 * a virtual one, if that non-virtual function accesses a closure | |
| 2957 * var, the closure still has to be taken. Hence, we check for isThis() | |
| 2958 * instead of isVirtual(). (thanks to David Friedman) | |
| 2959 */ | |
| 2960 | |
| 2961 //printf("FuncDeclaration.needsClosure() %s\n", toChars()); | |
|
77
ad4792a1cfd6
more D-ification container accessing
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
74
diff
changeset
|
2962 foreach (Dsymbol s3; closureVars) |
| 0 | 2963 { |
|
77
ad4792a1cfd6
more D-ification container accessing
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
74
diff
changeset
|
2964 auto v = cast(VarDeclaration)s3; |
| 0 | 2965 assert(v.isVarDeclaration()); |
| 2966 //printf("\tv = %s\n", v.toChars()); | |
| 2967 | |
|
77
ad4792a1cfd6
more D-ification container accessing
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
74
diff
changeset
|
2968 foreach(FuncDeclaration f; v.nestedrefs) |
|
ad4792a1cfd6
more D-ification container accessing
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
74
diff
changeset
|
2969 { |
| 0 | 2970 assert(f != this); |
| 2971 | |
| 2972 //printf("\t\tf = %s, %d, %p, %d\n", f.toChars(), f.isVirtual(), f.isThis(), f.tookAddressOf); | |
| 2973 if (f.isThis() || f.tookAddressOf) | |
| 2974 goto Lyes; // assume f escapes this function's scope | |
| 2975 | |
| 2976 // Look to see if any parents of f that are below this escape | |
| 2977 for (Dsymbol s = f.parent; s && s !is this; s = s.parent) | |
| 2978 { | |
| 2979 f = s.isFuncDeclaration(); | |
| 2980 if (f && (f.isThis() || f.tookAddressOf)) { | |
| 2981 goto Lyes; | |
| 2982 } | |
| 2983 } | |
| 2984 } | |
| 2985 } | |
| 2986 return false; | |
| 2987 | |
| 2988 Lyes: | |
| 2989 //printf("\tneeds closure\n"); | |
| 2990 return true; | |
| 2991 } | |
| 2992 | |
| 73 | 2993 /**************************************************** |
| 2994 * Merge into this function the 'in' contracts of all it overrides. | |
| 2995 * 'in's are OR'd together, i.e. only one of them needs to pass. | |
| 2996 */ | |
| 2997 | |
| 2998 Statement mergeFrequire(Statement sf) | |
| 2999 { | |
| 3000 /* Implementing this is done by having the overriding function call | |
| 3001 * nested functions (the fdrequire functions) nested inside the overridden | |
| 3002 * function. This requires that the stack layout of the calling function's | |
| 3003 * parameters and 'this' pointer be in the same place (as the nested | |
| 3004 * function refers to them). | |
| 3005 * This is easy for the parameters, as they are all on the stack in the same | |
| 3006 * place by definition, since it's an overriding function. The problem is | |
| 3007 * getting the 'this' pointer in the same place, since it is a local variable. | |
| 3008 * We did some hacks in the code generator to make this happen: | |
| 3009 * 1. always generate exception handler frame, or at least leave space for it | |
| 3010 * in the frame (Windows 32 SEH only) | |
| 3011 * 2. always generate an EBP style frame | |
| 3012 * 3. since 'this' is passed in a register that is subsequently copied into | |
| 3013 * a stack local, allocate that local immediately following the exception | |
| 3014 * handler block, so it is always at the same offset from EBP. | |
| 3015 */ | |
|
77
ad4792a1cfd6
more D-ification container accessing
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
74
diff
changeset
|
3016 foreach(FuncDeclaration fdv; foverrides) //(int i = 0; i < foverrides.dim; i++) |
| 73 | 3017 { |
| 3018 sf = fdv.mergeFrequire(sf); | |
| 98 | 3019 if (fdv.fdrequire) |
| 73 | 3020 { |
| 3021 //printf("fdv.frequire: %s\n", fdv.frequire.toChars()); | |
| 3022 /* Make the call: | |
| 3023 * try { __require(); } | |
| 3024 * catch { frequire; } | |
| 3025 */ | |
| 3026 Expression eresult = null; | |
| 3027 Expression e = new CallExp(loc, new VarExp(loc, fdv.fdrequire, 0), eresult); | |
| 3028 Statement s2 = new ExpStatement(loc, e); | |
| 3029 | |
| 3030 if (sf) | |
| 3031 { | |
| 3032 Catch c = new Catch(loc, null, null, sf); | |
| 3033 Array catches = new Array(); | |
| 3034 catches.push(cast(void*)c); | |
| 3035 sf = new TryCatchStatement(loc, s2, catches); | |
| 3036 } | |
| 3037 else | |
| 3038 sf = s2; | |
| 3039 } | |
| 3040 } | |
| 3041 return sf; | |
| 3042 } | |
| 3043 | |
| 3044 /**************************************************** | |
| 3045 * Merge into this function the 'out' contracts of all it overrides. | |
| 3046 * 'out's are AND'd together, i.e. all of them need to pass. | |
| 3047 */ | |
| 3048 | |
| 3049 Statement mergeFensure(Statement sf) | |
| 3050 { | |
| 3051 /* Same comments as for mergeFrequire(), except that we take care | |
| 3052 * of generating a consistent reference to the 'result' local by | |
| 3053 * explicitly passing 'result' to the nested function as a reference | |
| 3054 * argument. | |
| 3055 * This won't work for the 'this' parameter as it would require changing | |
| 3056 * the semantic code for the nested function so that it looks on the parameter | |
| 3057 * list for the 'this' pointer, something that would need an unknown amount | |
| 3058 * of tweaking of various parts of the compiler that I'd rather leave alone. | |
| 3059 */ | |
|
77
ad4792a1cfd6
more D-ification container accessing
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
74
diff
changeset
|
3060 foreach (FuncDeclaration fdv; foverrides) |
| 73 | 3061 { |
| 3062 sf = fdv.mergeFensure(sf); | |
| 98 | 3063 if (fdv.fdensure) |
| 73 | 3064 { |
| 3065 //printf("fdv.fensure: %s\n", fdv.fensure.toChars()); | |
| 3066 // Make the call: __ensure(result) | |
| 3067 Expression eresult = null; | |
| 3068 if (outId) | |
| 3069 eresult = new IdentifierExp(loc, outId); | |
| 3070 Expression e = new CallExp(loc, new VarExp(loc, fdv.fdensure, 0), eresult); | |
| 3071 Statement s2 = new ExpStatement(loc, e); | |
| 3072 | |
| 3073 if (sf) | |
| 3074 { | |
| 3075 sf = new CompoundStatement(fensure.loc, s2, sf); | |
| 3076 } | |
| 3077 else | |
| 3078 sf = s2; | |
| 3079 } | |
| 3080 } | |
| 3081 return sf; | |
| 3082 } | |
| 3083 | |
| 0 | 3084 static FuncDeclaration genCfunc(Type treturn, string name) |
| 3085 { | |
| 3086 return genCfunc(treturn, Lexer.idPool(name)); | |
| 3087 } | |
| 3088 | |
| 3089 /********************************** | |
| 3090 * Generate a FuncDeclaration for a runtime library function. | |
| 3091 */ | |
| 3092 static FuncDeclaration genCfunc(Type treturn, Identifier id) | |
| 3093 { | |
| 3094 FuncDeclaration fd; | |
| 3095 TypeFunction tf; | |
| 3096 Dsymbol s; | |
| 3097 static DsymbolTable st = null; | |
| 3098 | |
| 3099 //printf("genCfunc(name = '%s')\n", id.toChars()); | |
| 3100 //printf("treturn\n\t"); treturn.print(); | |
| 3101 | |
| 3102 // See if already in table | |
| 3103 if (!st) | |
| 3104 st = new DsymbolTable(); | |
| 3105 | |
| 3106 s = st.lookup(id); | |
| 3107 if (s) | |
| 3108 { | |
| 3109 fd = s.isFuncDeclaration(); | |
| 3110 assert(fd); | |
| 3111 assert(fd.type.nextOf().equals(treturn)); | |
| 3112 } | |
| 3113 else | |
| 3114 { | |
| 3115 tf = new TypeFunction(null, treturn, 0, LINK.LINKc); | |
| 3116 fd = new FuncDeclaration(Loc(0), Loc(0), id, STCstatic, tf); | |
| 3117 fd.protection = PROT.PROTpublic; | |
| 3118 fd.linkage = LINK.LINKc; | |
| 3119 | |
| 3120 st.insert(fd); | |
| 3121 } | |
| 3122 return fd; | |
| 3123 } | |
| 3124 | |
| 72 | 3125 override Symbol* toSymbol() |
| 0 | 3126 { |
| 3127 if (!csym) | |
| 3128 { | |
| 3129 Symbol* s; | |
| 3130 TYPE* t; | |
| 3131 string id; | |
| 3132 | |
| 3133 static if (false) { | |
| 3134 id = ident.toChars(); | |
| 3135 } else { | |
| 3136 id = mangle(); | |
| 3137 } | |
| 3138 //writef("FuncDeclaration.toSymbol(%s %s)\n", kind(), toChars()); | |
| 3139 //writef("\tid = '%s'\n", id); | |
| 3140 //writef("\ttype = %s\n", type.toChars()); | |
| 3141 s = symbol_calloc(toStringz(id)); | |
| 3142 slist_add(s); | |
| 3143 | |
| 3144 { | |
| 3145 s.prettyIdent = toStringz(toPrettyChars()); | |
| 3146 s.Sclass = SC.SCglobal; | |
| 3147 symbol_func(s); | |
| 3148 func_t* f = s.Sfunc; | |
| 3149 if (isVirtual()) | |
| 3150 f.Fflags |= F.Fvirtual; | |
| 3151 else if (isMember2()) | |
| 3152 f.Fflags |= F.Fstatic; | |
| 3153 f.Fstartline.Slinnum = loc.linnum; | |
| 3154 f.Fstartline.Sfilename = cast(char*)toStringz(loc.filename); | |
| 3155 if (endloc.linnum) | |
| 3156 { | |
| 3157 f.Fendline.Slinnum = endloc.linnum; | |
| 3158 f.Fendline.Sfilename = cast(char*)toStringz(endloc.filename); | |
| 3159 } | |
| 3160 else | |
| 3161 { | |
| 3162 f.Fendline.Slinnum = loc.linnum; | |
| 3163 f.Fendline.Sfilename = cast(char*)toStringz(loc.filename); | |
| 3164 } | |
| 3165 t = type.toCtype(); | |
| 3166 } | |
| 3167 | |
| 3168 mangle_t msave = t.Tmangle; | |
| 3169 if (isMain()) | |
| 3170 { | |
| 3171 t.Tty = TYM.TYnfunc; | |
| 3172 t.Tmangle = mTYman.mTYman_c; | |
| 3173 } | |
| 3174 else | |
| 3175 { | |
| 3176 switch (linkage) | |
| 3177 { | |
| 3178 case LINK.LINKwindows: | |
| 3179 t.Tmangle = mTYman.mTYman_std; | |
| 3180 break; | |
| 3181 | |
| 3182 case LINK.LINKpascal: | |
| 3183 t.Tty = TYM.TYnpfunc; | |
| 3184 t.Tmangle = mTYman.mTYman_pas; | |
| 3185 break; | |
| 3186 | |
| 3187 case LINK.LINKc: | |
| 3188 t.Tmangle = mTYman.mTYman_c; | |
| 3189 break; | |
| 3190 | |
| 3191 case LINK.LINKd: | |
| 3192 t.Tmangle = mTYman.mTYman_d; | |
| 3193 break; | |
| 3194 | |
| 3195 case LINK.LINKcpp: | |
| 3196 { t.Tmangle = mTYman.mTYman_cpp; | |
| 3197 version (TARGET_WINDOS) { | |
| 3198 if (isThis()) | |
| 3199 t.Tty = TYM.TYmfunc; | |
| 3200 } | |
| 3201 s.Sflags |= SFL.SFLpublic; | |
| 3202 Dsymbol parent = toParent(); | |
| 3203 ClassDeclaration cd = parent.isClassDeclaration(); | |
| 3204 if (cd) | |
| 3205 { | |
| 3206 .type* tt = cd.type.toCtype(); | |
| 3207 s.Sscope = tt.Tnext.Ttag; | |
| 3208 } | |
| 3209 break; | |
| 3210 } | |
| 3211 default: | |
| 3212 writef("linkage = %d\n", linkage); | |
| 3213 assert(0); | |
| 3214 } | |
| 3215 } | |
| 3216 if (msave) | |
| 3217 assert(msave == t.Tmangle); | |
| 3218 //printf("Tty = %x, mangle = x%x\n", t.Tty, t.Tmangle); | |
| 3219 t.Tcount++; | |
| 3220 s.Stype = t; | |
| 3221 //s.Sfielddef = this; | |
| 3222 | |
| 3223 csym = s; | |
| 3224 } | |
| 3225 return csym; | |
| 3226 } | |
| 3227 | |
| 3228 Symbol* toThunkSymbol(int offset) // thunk version | |
| 3229 { | |
| 3230 Symbol *sthunk; | |
| 3231 | |
| 3232 toSymbol(); | |
| 3233 | |
| 3234 static if (false) { | |
| 3235 char *id; | |
| 3236 char *n; | |
| 3237 type *t; | |
| 3238 | |
| 3239 n = sym.Sident; | |
| 72 | 3240 version (Bug4054) { |
| 63 | 3241 id = cast(char*) GC.malloc(8 + 5 + strlen(n) + 1); |
| 72 | 3242 } else { |
| 63 | 3243 id = cast(char*) alloca(8 + 5 + strlen(n) + 1); |
| 3244 } | |
| 0 | 3245 sprintf(id, "_thunk%d__%s", offset, n); |
| 3246 s = symbol_calloc(id); | |
| 3247 slist_add(s); | |
| 3248 s.Stype = csym.Stype; | |
| 3249 s.Stype.Tcount++; | |
| 3250 } | |
| 3251 sthunk = symbol_generate(SCstatic, csym.Stype); | |
| 3252 sthunk.Sflags |= SFLimplem; | |
| 3253 cod3_thunk(sthunk, csym, 0, TYnptr, -offset, -1, 0); | |
| 3254 return sthunk; | |
| 3255 } | |
| 3256 | |
| 72 | 3257 override void toObjFile(int multiobj) // compile to .obj file |
| 0 | 3258 { |
| 3259 Symbol* s; | |
| 3260 func_t* f; | |
| 3261 Symbol* senter; | |
| 3262 Symbol* sexit; | |
| 3263 | |
| 3264 FuncDeclaration func = this; | |
| 3265 ClassDeclaration cd = func.parent.isClassDeclaration(); | |
| 3266 int reverse; | |
| 89 | 3267 |
| 0 | 3268 int has_arguments; |
| 3269 | |
| 3270 //printf("FuncDeclaration.toObjFile(%p, %s.%s)\n", func, parent.toChars(), func.toChars()); | |
| 98 | 3271 static if (false) |
| 3272 { | |
| 0 | 3273 //printf("line = %d\n",func.getWhere() / LINEINC); |
| 3274 EEcontext ee = env.getEEcontext(); | |
| 3275 if (ee.EEcompile == 2) | |
| 3276 { | |
| 3277 if (ee.EElinnum < (func.getWhere() / LINEINC) || | |
| 3278 ee.EElinnum > (func.endwhere / LINEINC) | |
| 3279 ) | |
| 3280 return; // don't compile this function | |
| 3281 ee.EEfunc = func.toSymbol(); | |
| 3282 } | |
| 3283 } | |
| 3284 | |
| 3285 if (multiobj && !isStaticDtorDeclaration() && !isStaticCtorDeclaration()) | |
| 3286 { | |
| 3287 obj_append(this); | |
| 3288 return; | |
| 3289 } | |
| 3290 | |
| 3291 if (semanticRun >= 5) // if toObjFile() already run | |
| 3292 return; | |
| 3293 | |
| 3294 semanticRun = 5; | |
| 3295 | |
| 3296 if (!func.fbody) | |
| 3297 { | |
| 3298 return; | |
| 3299 } | |
| 3300 | |
| 3301 if (func.isUnitTestDeclaration() && !global.params.useUnitTests) | |
| 3302 return; | |
| 3303 | |
| 3304 if (global.params.verbose) | |
| 3305 writef("function %s\n",func.toChars()); | |
| 3306 | |
| 3307 s = func.toSymbol(); | |
| 3308 f = s.Sfunc; | |
| 73 | 3309 |
| 98 | 3310 version (TARGET_WINDOS) |
| 3311 { | |
| 73 | 3312 /* This is done so that the 'this' pointer on the stack is the same |
| 3313 * distance away from the function parameters, so that an overriding | |
| 3314 * function can call the nested fdensure or fdrequire of its overridden function | |
| 3315 * and the stack offsets are the same. | |
| 3316 */ | |
| 3317 if (isVirtual() && (fensure || frequire)) | |
| 3318 f.Fflags3 |= F3.Ffakeeh; | |
| 3319 } | |
| 0 | 3320 |
| 3321 version (TARGET_OSX) { | |
| 3322 s.Sclass = SC.SCcomdat; | |
| 3323 } else { | |
| 3324 s.Sclass = SC.SCglobal; | |
| 3325 } | |
| 3326 | |
| 3327 for (Dsymbol p = parent; p; p = p.parent) | |
| 3328 { | |
| 3329 if (p.isTemplateInstance()) | |
| 3330 { | |
| 3331 s.Sclass = SC.SCcomdat; | |
| 3332 break; | |
| 3333 } | |
| 3334 } | |
| 3335 | |
| 3336 if (isNested()) | |
| 3337 { | |
| 3338 // if (!(config.flags3 & CFG3pic)) | |
| 3339 // s.Sclass = SCstatic; | |
| 3340 f.Fflags3 |= F3.Fnested; | |
| 3341 } | |
| 3342 else | |
| 3343 { | |
| 3344 const(char)* libname = (global.params.symdebug) ? global.params.debuglibname : global.params.defaultlibname; | |
| 3345 | |
| 3346 // Pull in RTL startup code | |
| 3347 if (func.isMain()) | |
| 3348 { objextdef("_main"); | |
|
22
fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
17
diff
changeset
|
3349 version (POSIX) { ///TARGET_LINUX || TARGET_OSX || TARGET_FREEBSD || TARGET_SOLARIS |
| 0 | 3350 obj_ehsections(); // initialize exception handling sections |
| 3351 } else { | |
| 3352 objextdef("__acrtused_con"); | |
| 3353 } | |
| 3354 obj_includelib(libname); | |
| 3355 s.Sclass = SC.SCglobal; | |
| 3356 } | |
| 3357 else if (strcmp(s.Sident.ptr, "main".ptr) == 0 && linkage == LINK.LINKc) | |
| 3358 s.Sclass = SC.SCglobal; | |
| 3359 | |
| 3360 else if (func.isWinMain()) | |
| 3361 { | |
| 3362 objextdef("__acrtused"); | |
| 3363 obj_includelib(libname); | |
| 3364 s.Sclass = SC.SCglobal; | |
| 3365 } | |
| 3366 | |
| 3367 // Pull in RTL startup code | |
| 3368 else if (func.isDllMain()) | |
| 3369 { | |
| 3370 objextdef("__acrtused_dll"); | |
| 3371 obj_includelib(libname); | |
| 3372 s.Sclass = SC.SCglobal; | |
| 3373 } | |
| 3374 } | |
| 3375 | |
| 3376 cstate.CSpsymtab = &f.Flocsym; | |
| 3377 | |
| 3378 // Find module m for this function | |
| 3379 Module m = null; | |
| 3380 for (Dsymbol p = parent; p; p = p.parent) | |
| 3381 { | |
| 3382 m = p.isModule(); | |
| 3383 if (m) | |
| 3384 break; | |
| 3385 } | |
| 3386 | |
| 3387 IRState irs = IRState(m, func); | |
| 3388 Array deferToObj = new Array(); // write these to OBJ file later | |
| 3389 irs.deferToObj = deferToObj; | |
| 3390 | |
| 3391 TypeFunction tf; | |
| 3392 RET retmethod; | |
| 3393 Symbol* shidden = null; | |
| 3394 Symbol* sthis = null; | |
| 3395 tym_t tyf; | |
| 3396 | |
| 3397 tyf = tybasic(s.Stype.Tty); | |
| 3398 //printf("linkage = %d, tyf = x%x\n", linkage, tyf); | |
| 3399 reverse = tyrevfunc(s.Stype.Tty); | |
| 3400 | |
| 3401 assert(func.type.ty == TY.Tfunction); | |
| 3402 tf = cast(TypeFunction)(func.type); | |
| 3403 has_arguments = (tf.linkage == LINK.LINKd) && (tf.varargs == 1); | |
| 3404 retmethod = tf.retStyle(); | |
| 3405 if (retmethod == RET.RETstack) | |
| 3406 { | |
| 3407 // If function returns a struct, put a pointer to that | |
| 3408 // as the first argument | |
| 3409 .type* thidden = tf.next.pointerTo().toCtype(); | |
| 3410 char hiddenparam[5+4+1]; | |
| 3411 static int hiddenparami; // how many we've generated so far | |
| 3412 | |
| 3413 sprintf(hiddenparam.ptr, "__HID%d".ptr, ++hiddenparami); | |
| 3414 shidden = symbol_name(hiddenparam.ptr, SC.SCparameter, thidden); | |
| 3415 shidden.Sflags |= SFL.SFLtrue | SFL.SFLfree; | |
| 3416 | |
| 3417 version (DMDV1) { | |
| 3418 bool nestedref = func.nrvo_can && func.nrvo_var && func.nrvo_var.nestedref; | |
| 3419 } else { | |
| 3420 bool nestedref = func.nrvo_can && func.nrvo_var && (func.nrvo_var.nestedrefs.dim != 0); | |
| 3421 } | |
| 3422 if (nestedref) { | |
| 3423 type_setcv(&shidden.Stype, shidden.Stype.Tty | mTY.mTYvolatile); | |
| 3424 } | |
| 3425 | |
| 3426 irs.shidden = shidden; | |
| 3427 this.shidden = shidden; | |
| 3428 } | |
| 3429 | |
| 3430 if (vthis) | |
| 3431 { | |
| 3432 assert(!vthis.csym); | |
| 3433 sthis = vthis.toSymbol(); | |
| 3434 irs.sthis = sthis; | |
| 3435 if (!(f.Fflags3 & F3.Fnested)) | |
| 3436 f.Fflags3 |= F3.Fmember; | |
| 3437 } | |
| 3438 | |
| 3439 Symbol** params; | |
| 3440 uint pi; | |
| 3441 | |
| 3442 // Estimate number of parameters, pi | |
| 3443 pi = (v_arguments !is null); | |
| 3444 if (parameters) | |
| 3445 pi += parameters.dim; | |
| 3446 | |
| 3447 // Allow extra 2 for sthis and shidden | |
| 72 | 3448 version (Bug4054) |
|
14
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
3449 params = cast(Symbol**)GC.malloc((pi + 2) * (Symbol*).sizeof); |
| 72 | 3450 else |
| 0 | 3451 params = cast(Symbol**)alloca((pi + 2) * (Symbol*).sizeof); |
| 3452 | |
| 3453 // Get the actual number of parameters, pi, and fill in the params[] | |
| 3454 pi = 0; | |
| 3455 if (v_arguments) | |
| 3456 { | |
| 3457 params[pi] = v_arguments.toSymbol(); | |
| 3458 pi += 1; | |
| 3459 } | |
| 3460 if (parameters) | |
| 3461 { | |
| 89 | 3462 size_t i = 0; |
| 3463 for ( ; i < parameters.dim; ++i) | |
| 0 | 3464 { |
| 89 | 3465 auto v = cast(VarDeclaration)parameters[i]; |
| 98 | 3466 |
| 0 | 3467 if (v.csym) |
| 98 | 3468 { |
| 3469 error("compiler error, parameter '%s', bugzilla 2962?", v.toChars()); | |
| 3470 assert(false); | |
| 3471 } | |
| 0 | 3472 params[pi + i] = v.toSymbol(); |
| 3473 } | |
| 3474 pi += i; | |
| 3475 } | |
| 3476 | |
| 3477 if (reverse) | |
| 3478 { | |
| 3479 // Reverse params[] entries | |
| 89 | 3480 for (size_t i = 0; i < pi/2; i++) |
| 0 | 3481 { |
| 3482 Symbol* sptmp = params[i]; | |
| 3483 params[i] = params[pi - 1 - i]; | |
| 3484 params[pi - 1 - i] = sptmp; | |
| 3485 } | |
| 3486 } | |
| 3487 | |
| 3488 if (shidden) | |
| 3489 { | |
| 3490 static if (false) { | |
| 3491 // shidden becomes last parameter | |
| 3492 params[pi] = shidden; | |
| 3493 } else { | |
| 3494 // shidden becomes first parameter | |
| 3495 memmove(params + 1, params, pi * (*params).sizeof); | |
| 3496 params[0] = shidden; | |
| 3497 } | |
| 3498 pi++; | |
| 3499 } | |
| 3500 | |
| 3501 | |
| 3502 if (sthis) | |
| 3503 { | |
| 3504 static if (false) { | |
| 3505 // sthis becomes last parameter | |
| 3506 params[pi] = sthis; | |
| 3507 } else { | |
| 3508 // sthis becomes first parameter | |
| 3509 memmove(params + 1, params, pi * (*params).sizeof); | |
| 3510 params[0] = sthis; | |
| 3511 } | |
| 3512 pi++; | |
| 3513 } | |
| 3514 | |
| 3515 if ((global.params.isLinux || global.params.isOSX || global.params.isFreeBSD || global.params.isSolaris) && | |
| 3516 linkage != LINK.LINKd && shidden && sthis) | |
| 3517 { | |
| 3518 /* swap shidden and sthis | |
| 3519 */ | |
| 3520 Symbol* sp = params[0]; | |
| 3521 params[0] = params[1]; | |
| 3522 params[1] = sp; | |
| 3523 } | |
| 3524 | |
| 89 | 3525 for (size_t i = 0; i < pi; i++) |
| 0 | 3526 { |
| 3527 Symbol *sp = params[i]; | |
| 3528 sp.Sclass = SC.SCparameter; | |
| 3529 sp.Sflags &= ~SFL.SFLspill; | |
| 3530 sp.Sfl = FL.FLpara; | |
| 3531 symbol_add(sp); | |
| 3532 } | |
| 3533 | |
| 3534 // First parameter goes in register | |
| 3535 if (pi) | |
| 3536 { | |
| 3537 Symbol* sp = params[0]; | |
| 3538 if ((tyf == TYM.TYjfunc || tyf == TYM.TYmfunc) && type_jparam(sp.Stype)) | |
| 3539 { | |
| 3540 sp.Sclass = SC.SCfastpar; | |
| 3541 sp.Spreg = (tyf == TYM.TYjfunc) ? REG.AX : REG.CX; | |
| 3542 sp.Sfl = FL.FLauto; | |
| 3543 //printf("'%s' is SCfastpar\n",sp.Sident); | |
| 3544 } | |
| 3545 } | |
| 3546 | |
| 3547 if (func.fbody) | |
| 3548 { | |
| 3549 block* b; | |
| 3550 Blockx bx; | |
| 3551 Statement sbody; | |
| 3552 | |
| 3553 localgot = null; | |
| 3554 | |
| 3555 sbody = func.fbody; | |
| 3556 ///memset(&bx, 0, (bx).sizeof); | |
| 3557 bx.startblock = block_calloc(); | |
| 3558 bx.curblock = bx.startblock; | |
| 3559 bx.funcsym = s; | |
| 3560 bx.scope_index = -1; | |
| 3561 bx.classdec = cd; | |
| 3562 bx.member = func; | |
| 3563 bx.module_ = getModule(); | |
| 3564 irs.blx = &bx; | |
| 3565 | |
| 3566 buildClosure(&irs); | |
| 3567 | |
| 3568 static if (false) { | |
| 3569 if (func.isSynchronized()) | |
| 3570 { | |
| 3571 if (cd) | |
| 3572 { | |
| 3573 elem *esync; | |
| 3574 if (func.isStatic()) | |
| 3575 { // monitor is in ClassInfo | |
| 3576 esync = el_ptr(cd.toSymbol()); | |
| 3577 } | |
| 3578 else | |
| 3579 { // 'this' is the monitor | |
| 3580 esync = el_var(sthis); | |
| 3581 } | |
| 3582 | |
| 3583 if (func.isStatic() || sbody.usesEH() || | |
| 3584 !(config.flags2 & CFG2.CFG2seh)) | |
| 3585 { // BUG: what if frequire or fensure uses EH? | |
| 3586 | |
| 3587 sbody = new SynchronizedStatement(func.loc, esync, sbody); | |
| 3588 } | |
| 3589 else | |
| 3590 { | |
| 3591 version (TARGET_WINDOS) { | |
| 3592 if (config.flags2 & CFG2.CFG2seh) | |
| 3593 { | |
| 3594 /* The "jmonitor" uses an optimized exception handling frame | |
| 3595 * which is a little shorter than the more general EH frame. | |
| 3596 * It isn't strictly necessary. | |
| 3597 */ | |
| 3598 s.Sfunc.Fflags3 |= Fjmonitor; | |
| 3599 } | |
| 3600 } | |
| 3601 el_free(esync); | |
| 3602 } | |
| 3603 } | |
| 3604 else | |
| 3605 { | |
| 3606 error("synchronized function %s must be a member of a class", func.toChars()); | |
| 3607 } | |
| 3608 } | |
| 3609 } else version (TARGET_WINDOS) { | |
| 3610 if (func.isSynchronized() && cd && config.flags2 & CFG2.CFG2seh && | |
| 3611 !func.isStatic() && !sbody.usesEH()) | |
| 3612 { | |
| 3613 /* The "jmonitor" hack uses an optimized exception handling frame | |
| 3614 * which is a little shorter than the more general EH frame. | |
| 3615 */ | |
| 3616 s.Sfunc.Fflags3 |= F3.Fjmonitor; | |
| 3617 } | |
| 3618 } | |
| 3619 | |
| 3620 sbody.toIR(&irs); | |
| 3621 bx.curblock.BC = BC.BCret; | |
| 3622 | |
| 3623 f.Fstartblock = bx.startblock; | |
| 3624 // einit = el_combine(einit,bx.init); | |
| 3625 | |
| 3626 if (isCtorDeclaration()) | |
| 3627 { | |
| 3628 assert(sthis); | |
| 3629 for (b = f.Fstartblock; b; b = b.Bnext) | |
| 3630 { | |
| 3631 if (b.BC == BC.BCret) | |
| 3632 { | |
| 3633 b.BC = BC.BCretexp; | |
| 3634 b.Belem = el_combine(b.Belem, el_var(sthis)); | |
| 3635 } | |
| 3636 } | |
| 3637 } | |
| 3638 } | |
| 3639 | |
| 3640 // If static constructor | |
| 3641 if (isStaticConstructor()) | |
| 3642 { | |
| 3643 elem* e = el_una(OPER.OPucall, TYM.TYvoid, el_var(s)); | |
| 3644 ector = el_combine(ector, e); | |
| 3645 } | |
| 3646 | |
| 3647 // If static destructor | |
| 3648 if (isStaticDestructor()) | |
| 3649 { | |
| 3650 elem* e; | |
| 3651 | |
| 3652 version (STATICCTOR) { | |
| 3653 e = el_bin(OPER.OPcall, TYM.TYvoid, el_var(rtlsym[RTLSYM.RTLSYM_FATEXIT]), el_ptr(s)); | |
| 3654 ector = el_combine(ector, e); | |
| 3655 dtorcount++; | |
| 3656 } else { | |
| 3657 StaticDtorDeclaration f2 = isStaticDtorDeclaration(); | |
| 3658 assert(f2); | |
| 3659 if (f2.vgate) | |
| 3660 { | |
| 3661 /* Increment destructor's vgate at construction time | |
| 3662 */ | |
| 3663 ectorgates.push(cast(void*)f2); | |
| 3664 } | |
| 3665 | |
| 3666 e = el_una(OPER.OPucall, TYM.TYvoid, el_var(s)); | |
| 3667 edtor = el_combine(e, edtor); | |
| 3668 } | |
| 3669 } | |
| 3670 | |
| 3671 // If unit test | |
| 3672 if (isUnitTestDeclaration()) | |
| 3673 { | |
| 3674 elem* e = el_una(OPER.OPucall, TYM.TYvoid, el_var(s)); | |
| 3675 etest = el_combine(etest, e); | |
| 3676 } | |
| 3677 | |
| 3678 if (global.errors) | |
| 3679 return; | |
| 3680 | |
| 3681 writefunc(s); | |
| 3682 | |
| 3683 if (isExport()) { | |
| 3684 obj_export(s, Poffset); | |
| 3685 } | |
| 3686 | |
| 89 | 3687 for (size_t i = 0; i < irs.deferToObj.dim; i++) |
| 0 | 3688 { |
| 3689 Dsymbol ss = cast(Dsymbol)irs.deferToObj.data[i]; | |
| 3690 ss.toObjFile(0); | |
| 3691 } | |
| 3692 | |
|
22
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Robert Clipsham <robert@octarineparrot.com>
parents:
17
diff
changeset
|
3693 version (POSIX) { ///TARGET_LINUX || TARGET_OSX || TARGET_FREEBSD || TARGET_SOLARIS |
| 0 | 3694 // A hack to get a pointer to this function put in the .dtors segment |
| 3695 if (ident && ident.toChars() == "_STD") { | |
| 3696 obj_staticdtor(s); | |
| 3697 } | |
| 3698 } | |
| 3699 version (DMDV2) { | |
| 3700 if (irs.startaddress) | |
| 3701 { | |
| 3702 writef("Setting start address\n"); | |
| 3703 obj_startaddress(irs.startaddress); | |
| 3704 } | |
| 3705 } | |
| 3706 } | |
| 3707 | |
| 72 | 3708 override int cvMember(ubyte* p) |
| 0 | 3709 { |
| 3710 assert(false); | |
| 3711 } | |
| 3712 | |
| 3713 /************************************* | |
| 3714 * Closures are implemented by taking the local variables that | |
| 3715 * need to survive the scope of the function, and copying them | |
| 3716 * into a gc allocated chuck of memory. That chunk, called the | |
| 3717 * closure here, is inserted into the linked list of stack | |
| 3718 * frames instead of the usual stack frame. | |
| 3719 * | |
| 3720 * buildClosure() inserts code just after the function prolog | |
| 3721 * is complete. It allocates memory for the closure, allocates | |
| 3722 * a local variable (sclosure) to point to it, inserts into it | |
| 3723 * the link to the enclosing frame, and copies into it the parameters | |
| 3724 * that are referred to in nested functions. | |
| 3725 * In VarExp.toElem and SymOffExp.toElem, when referring to a | |
| 3726 * variable that is in a closure, takes the offset from sclosure rather | |
| 3727 * than from the frame pointer. | |
| 3728 * | |
| 3729 * getEthis() and NewExp.toElem need to use sclosure, if set, rather | |
| 3730 * than the current frame pointer. | |
| 3731 */ | |
| 3732 void buildClosure(IRState* irs) | |
| 3733 { | |
| 3734 if (needsClosure()) | |
| 3735 { | |
| 3736 // Generate closure on the heap | |
| 3737 // BUG: doesn't capture variadic arguments passed to this function | |
| 3738 | |
| 3739 version (DMDV2) { | |
| 3740 /* BUG: doesn't handle destructors for the local variables. | |
| 3741 * The way to do it is to make the closure variables the fields | |
| 3742 * of a class object: | |
| 3743 * class Closure | |
| 3744 * { vtbl[] | |
| 3745 * monitor | |
| 3746 * ptr to destructor | |
| 3747 * sthis | |
| 3748 * ... closure variables ... | |
| 3749 * ~this() { call destructor } | |
| 3750 * } | |
| 3751 */ | |
| 3752 } | |
| 3753 //printf("FuncDeclaration.buildClosure()\n"); | |
| 3754 Symbol* sclosure; | |
| 3755 sclosure = symbol_name("__closptr".ptr, SC.SCauto, Type.tvoidptr.toCtype()); | |
| 3756 sclosure.Sflags |= SFL.SFLtrue | SFL.SFLfree; | |
| 3757 symbol_add(sclosure); | |
| 3758 irs.sclosure = sclosure; | |
| 3759 | |
| 3760 uint offset = PTRSIZE; // leave room for previous sthis | |
|
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parents:
74
diff
changeset
|
3761 foreach (Dsymbol s3; closureVars) |
| 0 | 3762 { |
|
77
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parents:
74
diff
changeset
|
3763 auto v = cast(VarDeclaration)s3; |
| 0 | 3764 assert(v.isVarDeclaration()); |
| 3765 | |
| 3766 version (DMDV2) { | |
| 3767 if (v.needsAutoDtor()) | |
| 3768 v.error("has scoped destruction, cannot build closure"); | |
| 3769 } | |
| 3770 /* Align and allocate space for v in the closure | |
| 3771 * just like AggregateDeclaration.addField() does. | |
| 3772 */ | |
| 3773 uint memsize; | |
| 3774 uint memalignsize; | |
| 3775 uint xalign; | |
| 3776 /// version (DMDV2) { | |
| 3777 if (v.storage_class & STC.STClazy) | |
| 3778 { | |
| 3779 /* Lazy variables are really delegates, | |
| 3780 * so give same answers that TypeDelegate would | |
| 3781 */ | |
| 3782 memsize = PTRSIZE * 2; | |
| 3783 memalignsize = memsize; | |
| 3784 xalign = global.structalign; | |
| 3785 } | |
| 3786 else | |
| 3787 /// } | |
| 3788 { | |
| 3789 memsize = cast(uint)v.type.size(); | |
| 3790 memalignsize = v.type.alignsize(); | |
| 3791 xalign = v.type.memalign(global.structalign); | |
| 3792 } | |
| 3793 AggregateDeclaration.alignmember(xalign, memalignsize, &offset); | |
| 3794 v.offset = offset; | |
| 3795 offset += memsize; | |
| 3796 | |
| 3797 /* Can't do nrvo if the variable is put in a closure, since | |
| 3798 * what the shidden points to may no longer exist. | |
| 3799 */ | |
| 3800 if (nrvo_can && nrvo_var == v) | |
| 3801 { | |
| 3802 nrvo_can = 0; | |
| 3803 } | |
| 3804 } | |
| 3805 // offset is now the size of the closure | |
| 3806 | |
| 3807 // Allocate memory for the closure | |
| 3808 elem* e; | |
| 3809 e = el_long(TYM.TYint, offset); | |
| 3810 e = el_bin(OPER.OPcall, TYM.TYnptr, el_var(rtlsym[RTLSYM.RTLSYM_ALLOCMEMORY]), e); | |
| 3811 | |
| 3812 // Assign block of memory to sclosure | |
| 3813 // sclosure = allocmemory(sz); | |
| 3814 e = el_bin(OPER.OPeq, TYM.TYvoid, el_var(sclosure), e); | |
| 3815 | |
| 3816 // Set the first element to sthis | |
| 3817 // *(sclosure + 0) = sthis; | |
| 3818 elem* ethis; | |
| 3819 if (irs.sthis) | |
| 3820 ethis = el_var(irs.sthis); | |
| 3821 else | |
| 3822 ethis = el_long(TYM.TYnptr, 0); | |
| 3823 elem *ex = el_una(OPER.OPind, TYM.TYnptr, el_var(sclosure)); | |
| 3824 ex = el_bin(OPER.OPeq, TYM.TYnptr, ex, ethis); | |
| 3825 e = el_combine(e, ex); | |
| 3826 | |
| 3827 // Copy function parameters into closure | |
|
77
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parents:
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diff
changeset
|
3828 foreach (Dsymbol s3; closureVars) |
|
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parents:
74
diff
changeset
|
3829 { auto v = cast(VarDeclaration)s3; |
| 0 | 3830 |
| 3831 if (!v.isParameter()) | |
| 3832 continue; | |
| 3833 TYM tym = v.type.totym(); | |
| 3834 if (v.type.toBasetype().ty == TY.Tsarray || v.isOut() || v.isRef()) | |
| 3835 tym = TYM.TYnptr; // reference parameters are just pointers | |
| 3836 /// version (DMDV2) { | |
| 3837 else if (v.storage_class & STC.STClazy) | |
| 3838 tym = TYM.TYdelegate; | |
| 3839 /// } | |
| 3840 ex = el_bin(OPER.OPadd, TYM.TYnptr, el_var(sclosure), el_long(TYM.TYint, v.offset)); | |
| 3841 ex = el_una(OPER.OPind, tym, ex); | |
| 3842 if (ex.Ety == TYM.TYstruct) | |
| 3843 { | |
| 3844 ex.Enumbytes = cast(uint)v.type.size(); | |
| 3845 ex = el_bin(OPER.OPstreq, tym, ex, el_var(v.toSymbol())); | |
| 3846 ex.Enumbytes = cast(uint)v.type.size(); | |
| 3847 } | |
| 3848 else | |
| 3849 { | |
| 3850 ex = el_bin(OPER.OPeq, tym, ex, el_var(v.toSymbol())); | |
| 3851 } | |
| 3852 | |
| 3853 e = el_combine(e, ex); | |
| 3854 } | |
| 3855 | |
| 3856 block_appendexp(irs.blx.curblock, e); | |
| 3857 } | |
| 3858 } | |
| 3859 | |
| 135 | 3860 /********************************************* |
| 3861 * Return the function's parameter list, and whether | |
| 3862 * it is variadic or not. | |
| 3863 */ | |
| 3864 | |
| 3865 Parameters getParameters(int *pvarargs) | |
| 3866 { | |
| 3867 Parameters fparameters; | |
| 3868 int fvarargs; | |
| 3869 | |
| 3870 if (type) | |
| 3871 { | |
| 3872 assert(type.ty == Tfunction); | |
| 3873 auto fdtype = cast(TypeFunction)type; | |
| 3874 fparameters = fdtype.parameters; | |
| 3875 fvarargs = fdtype.varargs; | |
| 3876 } | |
| 3877 else // Constructors don't have type's | |
| 3878 { | |
| 3879 CtorDeclaration fctor = isCtorDeclaration(); | |
| 3880 assert(fctor); | |
| 3881 fparameters = fctor.arguments; | |
| 3882 fvarargs = fctor.varargs; | |
| 3883 } | |
| 3884 if (pvarargs) | |
| 3885 *pvarargs = fvarargs; | |
| 3886 return fparameters; | |
| 3887 } | |
| 3888 | |
| 72 | 3889 override FuncDeclaration isFuncDeclaration() { return this; } |
| 3890 } | |
|
74
7e0d548de9e6
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Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
3891 |
|
84
be2ab491772e
Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
79
diff
changeset
|
3892 alias Vector!FuncDeclaration FuncDeclarations; |