Mercurial > projects > ddmd
annotate dmd/FuncDeclaration.d @ 179:cd48cb899aee
Updated to dmd2.040
| author | korDen |
|---|---|
| date | Sun, 17 Oct 2010 20:56:07 +0400 |
| parents | e3afd1303184 |
| children | b0d41ff5e0df |
| 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; |
| 179 | 9 import dmd.SharedStaticDtorDeclaration; |
| 73 | 10 import dmd.Catch; |
| 11 import dmd.DeclarationStatement; | |
| 0 | 12 import dmd.StaticDtorDeclaration; |
| 63 | 13 import dmd.GlobalExpressions; |
| 0 | 14 import dmd.PeelStatement; |
| 15 import dmd.SynchronizedStatement; | |
| 16 import dmd.TOK; | |
| 17 import dmd.SymOffExp; | |
| 18 import dmd.AssignExp; | |
| 19 import dmd.ExpInitializer; | |
| 20 import dmd.BE; | |
| 21 import dmd.Id; | |
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22 import dmd.StorageClassDeclaration; |
| 0 | 23 import dmd.StringExp; |
| 179 | 24 import dmd.PASS; |
| 0 | 25 import dmd.DsymbolExp; |
| 26 import dmd.HaltExp; | |
| 27 import dmd.CommaExp; | |
| 28 import dmd.ReturnStatement; | |
| 29 import dmd.IntegerExp; | |
| 30 import dmd.ExpStatement; | |
| 31 import dmd.CSX; | |
| 179 | 32 import dmd.PROT; |
| 0 | 33 import dmd.CompoundStatement; |
| 34 import dmd.LabelStatement; | |
| 35 import dmd.ThisExp; | |
| 36 import dmd.SuperExp; | |
| 37 import dmd.IdentifierExp; | |
| 38 import dmd.AssertExp; | |
| 39 import dmd.CallExp; | |
| 40 import dmd.RET; | |
| 41 import dmd.VarExp; | |
| 42 import dmd.TupleDeclaration; | |
| 43 import dmd.ThisDeclaration; | |
| 44 import dmd.TypeTuple; | |
| 45 import dmd.TemplateInstance; | |
| 46 import dmd.ScopeDsymbol; | |
| 47 import dmd.AliasDeclaration; | |
| 48 import dmd.MOD; | |
| 49 import dmd.PROT; | |
| 50 import dmd.Lexer; | |
| 51 import dmd.LINK; | |
| 52 import dmd.CtorDeclaration; | |
| 53 import dmd.Global; | |
| 54 import dmd.DtorDeclaration; | |
| 55 import dmd.InvariantDeclaration; | |
| 56 import dmd.TY; | |
| 57 import dmd.PtrExp; | |
| 58 import dmd.DeclarationExp; | |
| 59 import dmd.InlineDoState; | |
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60 import dmd.Parameter; |
| 0 | 61 import dmd.StructDeclaration; |
| 62 import dmd.ClassDeclaration; | |
| 63 import dmd.InterfaceDeclaration; | |
| 64 import dmd.Array; | |
| 65 import dmd.Statement; | |
| 66 import dmd.Identifier; | |
| 67 import dmd.VarDeclaration; | |
| 68 import dmd.LabelDsymbol; | |
| 69 import dmd.DsymbolTable; | |
| 70 import dmd.ArrayTypes; | |
| 71 import dmd.Loc; | |
| 72 import dmd.ILS; | |
| 73 import dmd.ForeachStatement; | |
| 74 import dmd.Type; | |
| 75 import dmd.BUILTIN; | |
| 76 import dmd.TypeFunction; | |
| 77 import dmd.Expression; | |
| 78 import dmd.STC; | |
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79 import dmd.TRUST; |
| 0 | 80 import dmd.Dsymbol; |
| 81 import dmd.Scope; | |
| 82 import dmd.OutBuffer; | |
| 83 import dmd.HdrGenState; | |
| 84 import dmd.MATCH; | |
| 85 import dmd.AggregateDeclaration; | |
| 86 import dmd.InterState; | |
| 87 import dmd.InlineScanState; | |
| 88 import dmd.IRState; | |
| 89 import dmd.Util; | |
| 90 import dmd.BaseClass; | |
| 91 import dmd.Module; | |
| 92 import dmd.InlineCostState; | |
| 93 | |
| 94 import dmd.expression.Util; | |
| 95 | |
| 96 import dmd.declaration.Match; | |
| 97 | |
| 98 import dmd.backend.Symbol; | |
| 99 import dmd.backend.func_t; | |
| 100 import dmd.backend.Util; | |
| 101 import dmd.backend.glue; | |
| 102 import dmd.backend.SC; | |
| 103 import dmd.backend.F; | |
| 104 import dmd.backend.Cstate; | |
| 105 import dmd.backend.TYM; | |
| 106 import dmd.backend.OPER; | |
| 107 import dmd.backend.TYFL; | |
| 108 import dmd.backend.TYPE; | |
| 109 import dmd.backend.SFL; | |
| 110 import dmd.backend.mTY; | |
| 111 import dmd.backend.FL; | |
| 112 import dmd.backend.REG; | |
| 113 import dmd.backend.block; | |
| 114 import dmd.backend.Blockx; | |
| 115 import dmd.backend.Config; | |
| 116 import dmd.backend.BC; | |
| 117 import dmd.backend.elem; | |
| 118 import dmd.backend.targ_types; | |
| 119 import dmd.backend.mTYman; | |
| 120 import dmd.backend.RTLSYM; | |
| 121 import dmd.backend.LIST; | |
| 122 | |
| 123 import core.stdc.stdio; | |
| 124 import core.stdc.string; | |
| 63 | 125 version (Bug4054) import core.memory; |
| 126 | |
| 72 | 127 import dmd.interpret.Util; |
| 0 | 128 |
| 129 import std.string; | |
| 130 | |
| 131 class FuncDeclaration : Declaration | |
| 132 { | |
| 133 Array fthrows; // Array of Type's of exceptions (not used) | |
| 134 Statement frequire; | |
| 135 Statement fensure; | |
| 136 Statement fbody; | |
| 174 | 137 |
| 73 | 138 FuncDeclarations foverrides; // functions this function overrides |
| 139 FuncDeclaration fdrequire; // function that does the in contract | |
| 140 FuncDeclaration fdensure; // function that does the out contract | |
| 0 | 141 |
| 142 Identifier outId; // identifier for out statement | |
| 143 VarDeclaration vresult; // variable corresponding to outId | |
| 144 LabelDsymbol returnLabel; // where the return goes | |
| 145 | |
| 146 DsymbolTable localsymtab; // used to prevent symbols in different | |
| 147 // scopes from having the same name | |
| 148 VarDeclaration vthis; // 'this' parameter (member and nested) | |
| 149 VarDeclaration v_arguments; // '_arguments' parameter | |
| 150 version (IN_GCC) { | |
| 151 VarDeclaration v_argptr; // '_argptr' variable | |
| 152 } | |
| 153 Dsymbols parameters; // Array of VarDeclaration's for parameters | |
| 154 DsymbolTable labtab; // statement label symbol table | |
| 155 Declaration overnext; // next in overload list | |
| 179 | 156 Loc endloc; // location of closing curly bracket |
| 157 int vtblIndex; // for member functions, index into vtbl[] | |
| 158 int naked; // !=0 if naked | |
| 159 int inlineAsm; // !=0 if has inline assembler | |
| 73 | 160 ILS inlineStatus; |
| 179 | 161 int inlineNest; // !=0 if nested inline |
| 0 | 162 int cantInterpret; // !=0 if cannot interpret function |
| 179 | 163 PASS semanticRun; |
| 164 // this function's frame ptr | |
| 0 | 165 ForeachStatement fes; // if foreach body, this is the foreach |
| 166 int introducing; // !=0 if 'introducing' function | |
| 167 Type tintro; // if !=null, then this is the type | |
| 168 // of the 'introducing' function | |
| 169 // this one is overriding | |
| 170 int inferRetType; // !=0 if return type is to be inferred | |
| 171 | |
| 172 // Things that should really go into Scope | |
| 173 int hasReturnExp; // 1 if there's a return exp; statement | |
| 174 // 2 if there's a throw statement | |
| 175 // 4 if there's an assert(0) | |
| 176 // 8 if there's inline asm | |
| 177 | |
| 178 // Support for NRVO (named return value optimization) | |
| 179 bool nrvo_can = true; // !=0 means we can do it | |
| 180 VarDeclaration nrvo_var; // variable to replace with shidden | |
| 181 Symbol* shidden; // hidden pointer passed to function | |
| 182 | |
| 183 version (DMDV2) { | |
| 184 BUILTIN builtin; // set if this is a known, builtin | |
| 185 // function we can evaluate at compile | |
| 186 // time | |
| 187 | |
| 188 int tookAddressOf; // set if someone took the address of | |
| 189 // this function | |
| 190 Dsymbols closureVars; // local variables in this function | |
| 191 // which are referenced by nested | |
| 192 // functions | |
| 193 } else { | |
| 194 int nestedFrameRef; // !=0 if nested variables referenced | |
| 195 } | |
| 196 | |
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197 this(Loc loc, Loc endloc, Identifier id, StorageClass storage_class, Type type) |
| 0 | 198 { |
| 178 | 199 register(); |
| 0 | 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; | |
| 179 | 233 semanticRun = PASSinit; |
| 73 | 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 } | |
| 174 | 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 } | |
| 174 | 274 |
| 0 | 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 | |
| 179 | 293 if (semanticRun != PASSinit && isFuncLiteralDeclaration()) |
| 0 | 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 } |
| 179 | 302 |
| 303 parent = sc.parent; | |
| 304 Dsymbol parent = toParent(); | |
| 305 | |
| 306 if (semanticRun == PASSsemanticdone) | |
| 307 { | |
| 308 if (!parent.isClassDeclaration()) | |
| 309 return; | |
| 310 // need to re-run semantic() in order to set the class's vtbl[] | |
| 311 } | |
| 312 else | |
| 313 { | |
| 314 assert(semanticRun <= PASSsemantic); | |
| 315 semanticRun = PASSsemantic; | |
| 316 } | |
| 317 | |
| 318 uint dprogress_save = global.dprogress; | |
| 319 | |
| 320 foverrides.setDim(0); // reset in case semantic() is being retried for this function | |
| 0 | 321 |
| 322 storage_class |= sc.stc & ~STC.STCref; | |
| 179 | 323 //printf("function storage_class = x%llx, sc->stc = x%llx\n", storage_class, sc->stc); |
| 0 | 324 |
| 325 if (!originalType) | |
| 79 | 326 originalType = type; |
| 0 | 327 if (!type.deco) |
| 328 { | |
| 135 | 329 sc = sc.push(); |
| 179 | 330 sc.stc |= storage_class & STCref; // forward to function type |
| 135 | 331 type = type.semantic(loc, sc); |
| 332 sc = sc.pop(); | |
| 174 | 333 |
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334 /* Apply const, immutable and shared storage class |
| 79 | 335 * to the function type |
| 336 */ | |
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337 StorageClass stc = storage_class; |
| 135 | 338 if (type.isImmutable()) |
| 79 | 339 stc |= STC.STCimmutable; |
| 340 if (type.isConst()) | |
| 341 stc |= STC.STCconst; | |
| 342 if (type.isShared() || storage_class & STC.STCsynchronized) | |
| 343 stc |= STC.STCshared; | |
| 135 | 344 if (type.isWild()) |
| 345 stc |= STC.STCwild; | |
| 79 | 346 switch (stc & STC.STC_TYPECTOR) |
| 347 { | |
| 348 case STC.STCimmutable: | |
| 349 case STC.STCimmutable | STC.STCconst: | |
| 350 case STC.STCimmutable | STC.STCconst | STC.STCshared: | |
| 351 case STC.STCimmutable | STC.STCshared: | |
| 135 | 352 case STC.STCimmutable | STC.STCwild: |
| 353 case STC.STCimmutable | STC.STCconst | STC.STCwild: | |
| 354 case STC.STCimmutable | STC.STCconst | STC.STCshared | STC.STCwild: | |
| 355 case STC.STCimmutable | STC.STCshared | STC.STCwild: | |
| 79 | 356 // Don't use toInvariant(), as that will do a merge() |
| 357 type = type.makeInvariant(); | |
| 358 goto Lmerge; | |
| 174 | 359 |
| 79 | 360 case STC.STCconst: |
| 135 | 361 case STC.STCconst | STC.STCwild: |
| 79 | 362 type = type.makeConst(); |
| 363 goto Lmerge; | |
| 174 | 364 |
| 79 | 365 case STC.STCshared | STC.STCconst: |
| 135 | 366 case STC.STCshared | STC.STCconst | STC.STCwild: |
| 79 | 367 type = type.makeSharedConst(); |
| 368 goto Lmerge; | |
| 174 | 369 |
| 79 | 370 case STC.STCshared: |
| 371 type = type.makeShared(); | |
| 135 | 372 goto Lmerge; |
| 373 | |
| 374 case STC.STCwild: | |
| 375 type = type.makeWild(); | |
| 376 goto Lmerge; | |
| 377 | |
| 378 case STC.STCshared | STC.STCwild: | |
| 379 type = type.makeSharedWild(); | |
| 380 goto Lmerge; | |
| 381 | |
| 79 | 382 Lmerge: |
| 383 if (!(type.ty == Tfunction && !type.nextOf())) | |
| 384 /* Can't do merge if return type is not known yet | |
| 385 */ | |
| 386 type.deco = type.merge().deco; | |
| 387 break; | |
| 174 | 388 |
| 79 | 389 case STC.STCundefined: |
| 390 break; | |
| 174 | 391 |
| 79 | 392 default: |
| 393 assert(0); | |
| 394 } | |
| 0 | 395 } |
| 135 | 396 storage_class &= ~STC.STCref; |
| 0 | 397 if (type.ty != TY.Tfunction) |
| 398 { | |
| 399 error("%s must be a function", toChars()); | |
| 400 return; | |
| 401 } | |
| 402 f = cast(TypeFunction)type; | |
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403 size_t nparams = Parameter.dim(f.parameters); |
| 0 | 404 |
| 405 linkage = sc.linkage; | |
| 406 protection = sc.protection; | |
| 407 | |
| 408 if (storage_class & STC.STCscope) | |
| 409 error("functions cannot be scope"); | |
| 410 | |
| 411 if (isAbstract() && !isVirtual()) | |
| 412 error("non-virtual functions cannot be abstract"); | |
| 413 | |
| 135 | 414 if ((f.isConst() || f.isImmutable()) && !isThis()) |
| 0 | 415 error("without 'this' cannot be const/immutable"); |
| 416 | |
| 417 if (isAbstract() && isFinal()) | |
| 418 error("cannot be both final and abstract"); | |
| 419 static if (false) { | |
| 420 if (isAbstract() && fbody) | |
| 421 error("abstract functions cannot have bodies"); | |
| 422 } | |
| 423 | |
| 424 static if (false) { | |
| 425 if (isStaticConstructor() || isStaticDestructor()) | |
| 426 { | |
| 427 if (!isStatic() || type.nextOf().ty != Tvoid) | |
| 428 error("static constructors / destructors must be static void"); | |
| 429 if (f.arguments && f.arguments.dim) | |
| 430 error("static constructors / destructors must have empty parameter list"); | |
| 431 // BUG: check for invalid storage classes | |
| 432 } | |
| 433 } | |
| 434 | |
| 435 version (IN_GCC) { | |
| 436 AggregateDeclaration ad; | |
| 437 | |
| 438 ad = parent.isAggregateDeclaration(); | |
| 439 if (ad) | |
| 440 ad.methods.push(cast(void*)this); | |
| 441 } | |
| 442 sd = parent.isStructDeclaration(); | |
| 443 if (sd) | |
| 444 { | |
| 445 if (isCtorDeclaration()) | |
| 446 { | |
| 179 | 447 goto Ldone; |
| 0 | 448 } |
| 449 static if (false) { | |
| 450 // Verify no constructors, destructors, etc. | |
| 451 if (isCtorDeclaration() | |
| 452 //||isDtorDeclaration() | |
| 453 //|| isInvariantDeclaration() | |
| 454 //|| isUnitTestDeclaration() | |
| 455 ) | |
| 456 { | |
| 457 error("special member functions not allowed for %ss", sd.kind()); | |
| 458 } | |
| 459 | |
| 460 if (!sd.inv) | |
| 461 sd.inv = isInvariantDeclaration(); | |
| 462 | |
| 463 if (!sd.aggNew) | |
| 464 sd.aggNew = isNewDeclaration(); | |
| 465 | |
| 466 if (isDelete()) | |
| 467 { | |
| 468 if (sd.aggDelete) | |
| 469 error("multiple delete's for struct %s", sd.toChars()); | |
| 470 sd.aggDelete = cast(DeleteDeclaration)this; | |
| 471 } | |
| 472 } | |
| 473 } | |
| 474 | |
| 475 id = parent.isInterfaceDeclaration(); | |
| 476 if (id) | |
| 477 { | |
| 478 storage_class |= STC.STCabstract; | |
| 479 | |
| 480 if (isCtorDeclaration() || | |
| 481 ///static if (DMDV2) { | |
| 482 isPostBlitDeclaration() || | |
| 483 ///} | |
| 484 isDtorDeclaration() || | |
| 485 isInvariantDeclaration() || | |
| 486 isUnitTestDeclaration() || isNewDeclaration() || isDelete()) | |
| 487 error("special function not allowed in interface %s", id.toChars()); | |
| 179 | 488 if (fbody && isVirtual()) |
| 0 | 489 error("function body is not abstract in interface %s", id.toChars()); |
| 490 } | |
| 491 | |
| 492 /* Template member functions aren't virtual: | |
| 493 * interface TestInterface { void tpl(T)(); } | |
| 494 * and so won't work in interfaces | |
| 495 */ | |
| 496 if ((pd = toParent()) !is null && | |
| 497 pd.isTemplateInstance() && | |
| 498 (pd = toParent2()) !is null && | |
| 499 (id = pd.isInterfaceDeclaration()) !is null) | |
| 500 { | |
| 501 error("template member function not allowed in interface %s", id.toChars()); | |
| 502 } | |
| 503 | |
| 504 cd = parent.isClassDeclaration(); | |
| 505 if (cd) | |
| 506 { int vi; | |
| 507 CtorDeclaration ctor; | |
| 508 DtorDeclaration dtor; | |
| 509 InvariantDeclaration inv; | |
| 510 | |
| 511 if (isCtorDeclaration()) | |
| 512 { | |
| 513 // ctor = cast(CtorDeclaration)this; | |
| 514 // if (!cd.ctor) | |
| 515 // cd.ctor = ctor; | |
| 516 return; | |
| 517 } | |
| 518 | |
| 519 static if (false) { | |
| 520 dtor = isDtorDeclaration(); | |
| 521 if (dtor) | |
| 522 { | |
| 523 if (cd.dtor) | |
| 524 error("multiple destructors for class %s", cd.toChars()); | |
| 525 cd.dtor = dtor; | |
| 526 } | |
| 527 | |
| 528 inv = isInvariantDeclaration(); | |
| 529 if (inv) | |
| 530 { | |
| 531 cd.inv = inv; | |
| 532 } | |
| 533 | |
| 534 if (isNewDeclaration()) | |
| 535 { | |
| 536 if (!cd.aggNew) | |
| 537 cd.aggNew = cast(NewDeclaration)this; | |
| 538 } | |
| 539 | |
| 540 if (isDelete()) | |
| 541 { | |
| 542 if (cd.aggDelete) | |
| 543 error("multiple delete's for class %s", cd.toChars()); | |
| 544 cd.aggDelete = cast(DeleteDeclaration)this; | |
| 545 } | |
| 546 } | |
| 547 | |
| 548 if (storage_class & STC.STCabstract) | |
| 549 cd.isabstract = true; | |
| 550 | |
| 551 // if static function, do not put in vtbl[] | |
| 552 if (!isVirtual()) | |
| 553 { | |
| 554 //printf("\tnot virtual\n"); | |
| 555 goto Ldone; | |
| 556 } | |
| 557 | |
| 179 | 558 /* Find index of existing function in base class's vtbl[] to override |
| 559 * (the index will be the same as in cd's current vtbl[]) | |
| 560 */ | |
| 561 vi = cd.baseClass ? findVtblIndex(cd.baseClass.vtbl, cd.baseClass.vtbl.dim) : -1; | |
| 0 | 562 switch (vi) |
| 563 { | |
| 564 case -1: | |
| 565 /* Didn't find one, so | |
| 566 * This is an 'introducing' function which gets a new | |
| 567 * slot in the vtbl[]. | |
| 568 */ | |
| 569 | |
| 570 // Verify this doesn't override previous final function | |
| 571 if (cd.baseClass) | |
| 174 | 572 { |
| 0 | 573 Dsymbol s = cd.baseClass.search(loc, ident, 0); |
| 574 if (s) | |
| 575 { | |
| 576 FuncDeclaration ff = s.isFuncDeclaration(); | |
| 577 ff = ff.overloadExactMatch(type); | |
| 578 if (ff && ff.isFinal() && ff.prot() != PROT.PROTprivate) | |
| 579 error("cannot override final function %s", ff.toPrettyChars()); | |
| 580 } | |
| 581 } | |
| 582 | |
| 583 if (isFinal()) | |
| 584 { | |
| 585 if (isOverride()) | |
| 586 error("does not override any function"); | |
| 587 cd.vtblFinal.push(cast(void*)this); | |
| 588 } | |
| 589 else | |
| 590 { | |
| 591 // Append to end of vtbl[] | |
| 592 //printf("\tintroducing function\n"); | |
| 593 introducing = 1; | |
| 594 vi = cd.vtbl.dim; | |
| 595 cd.vtbl.push(cast(void*)this); | |
| 596 vtblIndex = vi; | |
| 597 } | |
| 598 break; | |
| 599 | |
| 600 case -2: // can't determine because of fwd refs | |
| 179 | 601 cd.sizeok = 2; // can't finish due to forward reference |
| 602 global.dprogress = dprogress_save; | |
| 603 return; | |
| 0 | 604 |
| 605 default: | |
| 174 | 606 { |
| 179 | 607 FuncDeclaration fdv = cast(FuncDeclaration)cd.baseClass.vtbl.data[vi]; |
| 608 | |
| 0 | 609 // This function is covariant with fdv |
| 610 if (fdv.isFinal()) | |
| 611 error("cannot override final function %s", fdv.toPrettyChars()); | |
| 612 | |
| 613 version (DMDV2) { | |
| 614 if (!isOverride()) | |
| 615 warning(loc, "overrides base class function %s, but is not marked with 'override'", fdv.toPrettyChars()); | |
| 616 } | |
| 617 | |
| 618 if (fdv.toParent() == parent) | |
| 619 { | |
| 620 // If both are mixins, then error. | |
| 621 // If either is not, the one that is not overrides | |
| 622 // the other. | |
| 623 if (fdv.parent.isClassDeclaration()) | |
| 624 break; | |
| 625 if (!this.parent.isClassDeclaration() | |
| 626 ///static if (!BREAKABI) { | |
| 627 && !isDtorDeclaration() | |
| 628 ///} | |
| 629 ///version (DMDV2) { | |
| 630 && !isPostBlitDeclaration() | |
| 631 ///} | |
| 632 ) | |
| 633 error("multiple overrides of same function"); | |
| 634 } | |
| 635 cd.vtbl.data[vi] = cast(void*)this; | |
| 636 vtblIndex = vi; | |
| 174 | 637 |
| 73 | 638 /* Remember which functions this overrides |
| 639 */ | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
640 foverrides.push(fdv); |
| 0 | 641 |
| 642 /* This works by whenever this function is called, | |
| 643 * it actually returns tintro, which gets dynamically | |
| 644 * cast to type. But we know that tintro is a base | |
| 645 * of type, so we could optimize it by not doing a | |
| 646 * dynamic cast, but just subtracting the isBaseOf() | |
| 647 * offset if the value is != null. | |
| 648 */ | |
| 649 | |
| 650 if (fdv.tintro) | |
| 651 tintro = fdv.tintro; | |
| 652 else if (!type.equals(fdv.type)) | |
| 653 { | |
| 654 /* Only need to have a tintro if the vptr | |
| 655 * offsets differ | |
| 656 */ | |
| 657 int offset; | |
| 658 if (fdv.type.nextOf().isBaseOf(type.nextOf(), &offset)) | |
| 659 { | |
| 660 tintro = fdv.type; | |
| 661 } | |
| 662 } | |
| 663 break; | |
| 664 } | |
| 665 } | |
| 666 | |
| 667 /* Go through all the interface bases. | |
| 668 * If this function is covariant with any members of those interface | |
| 669 * functions, set the tintro. | |
| 670 */ | |
| 671 for (int i = 0; i < cd.interfaces_dim; i++) | |
| 672 { | |
| 673 BaseClass b = cd.interfaces[i]; | |
| 674 vi = findVtblIndex(b.base.vtbl, b.base.vtbl.dim); | |
| 675 switch (vi) | |
| 676 { | |
| 677 case -1: | |
| 678 break; | |
| 679 | |
| 680 case -2: | |
| 681 cd.sizeok = 2; // can't finish due to forward reference | |
| 179 | 682 global.dprogress = dprogress_save; |
| 0 | 683 return; |
| 684 | |
| 685 default: | |
| 686 { FuncDeclaration fdv = cast(FuncDeclaration)b.base.vtbl.data[vi]; | |
| 687 Type ti = null; | |
| 174 | 688 |
| 73 | 689 /* Remember which functions this overrides |
| 690 */ | |
|
74
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Switch Arrays of Dsymbols to the new templated Vector type
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parents:
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diff
changeset
|
691 foverrides.push(fdv); |
| 0 | 692 |
| 693 if (fdv.tintro) | |
| 73 | 694 ti = fdv.tintro; |
| 0 | 695 else if (!type.equals(fdv.type)) |
| 696 { | |
| 179 | 697 /* Only need to have a tintro if the vptr |
| 698 * offsets differ | |
| 699 */ | |
| 700 uint errors = global.errors; | |
| 701 global.gag++; // suppress printing of error messages | |
| 702 int offset; | |
| 703 int baseOf = fdv.type.nextOf().isBaseOf(type.nextOf(), &offset); | |
| 704 global.gag--; // suppress printing of error messages | |
| 705 if (errors != global.errors) | |
| 174 | 706 { |
| 179 | 707 // any error in isBaseOf() is a forward reference error, so we bail out |
| 708 global.errors = errors; | |
| 709 cd.sizeok = 2; // can't finish due to forward reference | |
| 710 global.dprogress = dprogress_save; | |
| 711 return; | |
| 712 } | |
| 713 if (baseOf) | |
| 714 { | |
| 715 ti = fdv.type; | |
| 0 | 716 } |
| 717 } | |
| 718 if (ti) | |
| 719 { | |
| 720 if (tintro && !tintro.equals(ti)) | |
| 721 { | |
| 722 error("incompatible covariant types %s and %s", tintro.toChars(), ti.toChars()); | |
| 723 } | |
| 724 tintro = ti; | |
| 725 } | |
| 726 goto L2; | |
| 727 } | |
| 728 } | |
| 729 } | |
| 730 | |
| 731 if (introducing && isOverride()) | |
| 732 { | |
| 733 error("does not override any function"); | |
| 734 } | |
| 735 | |
| 736 L2: ; | |
| 179 | 737 /* Go through all the interface bases. |
| 738 * Disallow overriding any final functions in the interface(s). | |
| 739 */ | |
| 740 for (int i = 0; i < cd.interfaces_dim; i++) | |
| 741 { | |
| 742 BaseClass b = cd.interfaces[i]; | |
| 743 if (b.base) | |
| 744 { | |
| 745 Dsymbol s = search_function(b.base, ident); | |
| 746 if (s) | |
| 747 { | |
| 748 FuncDeclaration f_ = s.isFuncDeclaration(); | |
| 749 if (f_) | |
| 750 { | |
| 751 f_ = f_.overloadExactMatch(type); | |
| 752 if (f_ && f_.isFinal() && f_.prot() != PROT.PROTprivate) | |
| 753 error("cannot override final function %s.%s", b.base.toChars(), f_.toPrettyChars()); | |
| 754 } | |
| 755 } | |
| 756 } | |
| 757 } | |
| 0 | 758 } |
| 759 else if (isOverride() && !parent.isTemplateInstance()) | |
| 760 error("override only applies to class member functions"); | |
| 761 | |
| 762 /* Do not allow template instances to add virtual functions | |
| 763 * to a class. | |
| 764 */ | |
| 765 if (isVirtual()) | |
| 766 { | |
| 767 TemplateInstance ti = parent.isTemplateInstance(); | |
| 768 if (ti) | |
| 769 { | |
| 770 // Take care of nested templates | |
| 771 while (1) | |
| 772 { | |
| 773 TemplateInstance ti2 = ti.tempdecl.parent.isTemplateInstance(); | |
| 774 if (!ti2) | |
| 775 break; | |
| 776 ti = ti2; | |
| 777 } | |
| 778 | |
| 779 // If it's a member template | |
| 780 ClassDeclaration cdd = ti.tempdecl.isClassMember(); | |
| 781 if (cdd) | |
| 782 { | |
| 783 error("cannot use template to add virtual function to class '%s'", cdd.toChars()); | |
| 784 } | |
| 785 } | |
| 786 } | |
| 787 | |
| 788 if (isMain()) | |
| 789 { | |
| 790 // Check parameters to see if they are either () or (char[][] args) | |
| 791 switch (nparams) | |
| 792 { | |
| 793 case 0: | |
| 794 break; | |
| 795 | |
| 796 case 1: | |
| 797 { | |
|
130
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dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
126
diff
changeset
|
798 auto arg0 = Parameter.getNth(f.parameters, 0); |
| 0 | 799 if (arg0.type.ty != TY.Tarray || |
| 800 arg0.type.nextOf().ty != TY.Tarray || | |
| 801 arg0.type.nextOf().nextOf().ty != TY.Tchar || | |
| 802 arg0.storageClass & (STC.STCout | STC.STCref | STC.STClazy)) | |
| 803 goto Lmainerr; | |
| 804 break; | |
| 805 } | |
| 806 | |
| 807 default: | |
| 808 goto Lmainerr; | |
| 809 } | |
| 810 | |
| 79 | 811 if (!f.nextOf()) |
| 812 error("must return int or void"); | |
| 813 else if (f.nextOf().ty != TY.Tint32 && f.nextOf().ty != TY.Tvoid) | |
| 0 | 814 error("must return int or void, not %s", f.nextOf().toChars()); |
| 815 if (f.varargs) | |
| 816 { | |
| 817 Lmainerr: | |
| 818 error("parameters must be main() or main(char[][] args)"); | |
| 819 } | |
| 820 } | |
| 821 | |
| 822 if (ident == Id.assign && (sd || cd)) | |
| 823 { // Disallow identity assignment operator. | |
| 824 | |
| 825 // opAssign(...) | |
| 826 if (nparams == 0) | |
| 827 { if (f.varargs == 1) | |
| 828 goto Lassignerr; | |
| 829 } | |
| 830 else | |
| 831 { | |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
126
diff
changeset
|
832 auto arg0 = Parameter.getNth(f.parameters, 0); |
| 0 | 833 Type t0 = arg0.type.toBasetype(); |
| 834 Type tb = sd ? sd.type : cd.type; | |
| 835 if (arg0.type.implicitConvTo(tb) || | |
| 836 (sd && t0.ty == TY.Tpointer && t0.nextOf().implicitConvTo(tb)) | |
| 837 ) | |
| 838 { | |
| 839 if (nparams == 1) | |
| 840 goto Lassignerr; | |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
126
diff
changeset
|
841 auto arg1 = Parameter.getNth(f.parameters, 1); |
| 0 | 842 if (arg1.defaultArg) |
| 843 goto Lassignerr; | |
| 844 } | |
| 845 } | |
| 846 } | |
| 174 | 847 |
| 179 | 848 if (isVirtual() && semanticRun != PASSsemanticdone) |
| 73 | 849 { |
| 850 /* Rewrite contracts as nested functions, then call them. | |
| 851 * Doing it as nested functions means that overriding functions | |
| 852 * can call them. | |
| 853 */ | |
| 854 if (frequire) | |
| 174 | 855 { |
| 73 | 856 /* in { ... } |
| 857 * becomes: | |
| 858 * void __require() { ... } | |
| 859 * __require(); | |
| 860 */ | |
| 861 Loc loc = frequire.loc; | |
| 862 TypeFunction tf = new TypeFunction(null, Type.tvoid, 0, LINKd); | |
| 863 FuncDeclaration fd = new FuncDeclaration(loc, loc, Id.require, STCundefined, tf); | |
| 864 fd.fbody = frequire; | |
| 865 Statement s1 = new DeclarationStatement(loc, fd); | |
| 866 Expression e = new CallExp(loc, new VarExp(loc, fd, 0), cast(Expressions)null); | |
| 867 Statement s2 = new ExpStatement(loc, e); | |
| 868 frequire = new CompoundStatement(loc, s1, s2); | |
| 869 fdrequire = fd; | |
| 870 } | |
| 871 | |
| 872 if (fensure) | |
| 873 { /* out (result) { ... } | |
| 874 * becomes: | |
| 875 * tret __ensure(ref tret result) { ... } | |
| 876 * __ensure(result); | |
| 877 */ | |
| 878 if (!outId && f.nextOf().toBasetype().ty != Tvoid) | |
| 879 outId = Id.result; // provide a default | |
| 880 | |
| 881 Loc loc = fensure.loc; | |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
126
diff
changeset
|
882 auto arguments = new Parameters(); |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
126
diff
changeset
|
883 Parameter a = null; |
| 73 | 884 if (outId) |
| 174 | 885 { |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
126
diff
changeset
|
886 a = new Parameter(STCref, f.nextOf(), outId, null); |
|
126
1765f3ef917d
ClassDeclarations, Arguments -> Vector
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
122
diff
changeset
|
887 arguments.push(a); |
| 73 | 888 } |
| 889 TypeFunction tf = new TypeFunction(arguments, Type.tvoid, 0, LINKd); | |
| 890 FuncDeclaration fd = new FuncDeclaration(loc, loc, Id.ensure, STCundefined, tf); | |
| 891 fd.fbody = fensure; | |
| 892 Statement s1 = new DeclarationStatement(loc, fd); | |
| 893 Expression eresult = null; | |
| 894 if (outId) | |
| 895 eresult = new IdentifierExp(loc, outId); | |
| 896 Expression e = new CallExp(loc, new VarExp(loc, fd, 0), eresult); | |
| 897 Statement s2 = new ExpStatement(loc, e); | |
| 898 fensure = new CompoundStatement(loc, s1, s2); | |
| 899 fdensure = fd; | |
| 900 } | |
| 901 } | |
| 0 | 902 |
| 903 Ldone: | |
| 179 | 904 global.dprogress++; |
| 905 semanticRun = PASSsemanticdone; | |
| 906 | |
| 0 | 907 /* Save scope for possible later use (if we need the |
| 908 * function internals) | |
| 909 */ | |
|
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
|
910 scope_ = sc.clone(); |
| 0 | 911 scope_.setNoFree(); |
| 912 return; | |
| 913 | |
| 914 Lassignerr: | |
| 915 if (sd) | |
| 916 { | |
| 917 sd.hasIdentityAssign = 1; // don't need to generate it | |
| 918 goto Ldone; | |
| 919 } | |
| 920 error("identity assignment operator overload is illegal"); | |
| 921 } | |
| 174 | 922 |
| 72 | 923 override void semantic2(Scope sc) |
| 0 | 924 { |
| 925 } | |
| 926 | |
| 927 // Do the semantic analysis on the internals of the function. | |
| 72 | 928 override void semantic3(Scope sc) |
| 0 | 929 { |
| 930 TypeFunction f; | |
| 931 VarDeclaration argptr = null; | |
| 932 VarDeclaration _arguments = null; | |
| 933 | |
| 934 if (!parent) | |
| 935 { | |
| 936 if (global.errors) | |
| 937 return; | |
| 938 //printf("FuncDeclaration.semantic3(%s '%s', sc = %p)\n", kind(), toChars(), sc); | |
| 939 assert(0); | |
| 940 } | |
| 941 //printf("FuncDeclaration.semantic3('%s.%s', sc = %p, loc = %s)\n", parent.toChars(), toChars(), sc, loc.toChars()); | |
| 942 //fflush(stdout); | |
| 943 //printf("storage class = x%x %x\n", sc.stc, storage_class); | |
| 944 //{ static int x; if (++x == 2) *(char*)0=0; } | |
| 945 //printf("\tlinkage = %d\n", sc.linkage); | |
| 946 | |
| 947 //printf(" sc.incontract = %d\n", sc.incontract); | |
| 179 | 948 if (semanticRun >= PASSsemantic3) |
| 949 return; | |
| 950 semanticRun = PASSsemantic3; | |
| 0 | 951 |
| 952 if (!type || type.ty != TY.Tfunction) | |
| 953 return; | |
| 954 f = cast(TypeFunction)(type); | |
| 955 | |
| 956 // Check the 'throws' clause | |
| 957 if (fthrows) | |
| 958 { | |
| 959 for (int i = 0; i < fthrows.dim; i++) | |
| 960 { | |
| 961 Type t = cast(Type)fthrows.data[i]; | |
| 962 | |
| 963 t = t.semantic(loc, sc); | |
| 964 if (!t.isClassHandle()) | |
| 965 error("can only throw classes, not %s", t.toChars()); | |
| 966 } | |
| 967 } | |
| 174 | 968 |
| 73 | 969 frequire = mergeFrequire(frequire); |
| 970 fensure = mergeFensure(fensure); | |
| 0 | 971 |
| 972 if (fbody || frequire) | |
| 973 { | |
| 974 /* Symbol table into which we place parameters and nested functions, | |
| 975 * solely to diagnose name collisions. | |
| 976 */ | |
| 977 localsymtab = new DsymbolTable(); | |
| 978 | |
| 979 // Establish function scope | |
| 980 ScopeDsymbol ss = new ScopeDsymbol(); | |
| 981 ss.parent = sc.scopesym; | |
| 982 Scope sc2 = sc.push(ss); | |
| 983 sc2.func = this; | |
| 984 sc2.parent = this; | |
| 985 sc2.callSuper = 0; | |
| 986 sc2.sbreak = null; | |
| 987 sc2.scontinue = null; | |
| 988 sc2.sw = null; | |
| 989 sc2.fes = fes; | |
| 990 sc2.linkage = LINK.LINKd; | |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
126
diff
changeset
|
991 sc2.stc &= ~(STC.STCauto | STC.STCscope | STC.STCstatic | STC.STCabstract | STC.STCdeprecated | |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
126
diff
changeset
|
992 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
|
993 STCproperty | STCsafe | STCtrusted | STCsystem); |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
126
diff
changeset
|
994 sc2.protection = PROT.PROTpublic; |
| 0 | 995 sc2.explicitProtection = 0; |
| 996 sc2.structalign = 8; | |
| 997 sc2.incontract = 0; | |
| 998 sc2.tf = null; | |
| 999 sc2.noctor = 0; | |
| 1000 | |
| 1001 // Declare 'this' | |
| 1002 AggregateDeclaration ad = isThis(); | |
| 1003 if (ad) | |
| 1004 { VarDeclaration v; | |
| 1005 | |
| 1006 if (isFuncLiteralDeclaration() && isNested()) | |
| 1007 { | |
| 1008 error("literals cannot be class members"); | |
| 1009 return; | |
| 1010 } | |
| 1011 else | |
| 1012 { | |
| 1013 assert(!isNested()); // can't be both member and nested | |
| 1014 assert(ad.handle); | |
| 1015 Type thandle = ad.handle; | |
| 1016 version (STRUCTTHISREF) { | |
| 1017 thandle = thandle.addMod(type.mod); | |
| 1018 thandle = thandle.addStorageClass(storage_class); | |
| 1019 if (isPure()) | |
| 1020 thandle = thandle.addMod(MOD.MODconst); | |
| 1021 } else { | |
| 1022 if (storage_class & STC.STCconst || type.isConst()) | |
| 1023 { | |
| 1024 assert(0); // BUG: shared not handled | |
| 1025 if (thandle.ty == TY.Tclass) | |
| 1026 thandle = thandle.constOf(); | |
| 1027 else | |
| 1028 { assert(thandle.ty == TY.Tpointer); | |
| 1029 thandle = thandle.nextOf().constOf().pointerTo(); | |
| 1030 } | |
| 1031 } | |
| 135 | 1032 else if (storage_class & STC.STCimmutable || type.isImmutable()) |
| 0 | 1033 { |
| 1034 if (thandle.ty == TY.Tclass) | |
| 1035 thandle = thandle.invariantOf(); | |
| 1036 else | |
| 1037 { assert(thandle.ty == TY.Tpointer); | |
| 1038 thandle = thandle.nextOf().invariantOf().pointerTo(); | |
| 1039 } | |
| 1040 } | |
| 1041 else if (storage_class & STC.STCshared || type.isShared()) | |
| 1042 { | |
| 1043 assert(0); // not implemented | |
| 1044 } | |
| 1045 } | |
| 1046 v = new ThisDeclaration(loc, thandle); | |
| 1047 v.storage_class |= STC.STCparameter; | |
| 1048 version (STRUCTTHISREF) { | |
| 1049 if (thandle.ty == TY.Tstruct) | |
| 1050 v.storage_class |= STC.STCref; | |
| 1051 } | |
| 1052 v.semantic(sc2); | |
| 1053 if (!sc2.insert(v)) | |
| 1054 assert(0); | |
| 1055 v.parent = this; | |
| 1056 vthis = v; | |
| 1057 } | |
| 1058 } | |
| 1059 else if (isNested()) | |
| 1060 { | |
| 1061 /* The 'this' for a nested function is the link to the | |
| 1062 * enclosing function's stack frame. | |
| 1063 * Note that nested functions and member functions are disjoint. | |
| 1064 */ | |
| 1065 VarDeclaration v = new ThisDeclaration(loc, Type.tvoid.pointerTo()); | |
| 1066 v.storage_class |= STC.STCparameter; | |
| 1067 v.semantic(sc2); | |
| 1068 if (!sc2.insert(v)) | |
| 1069 assert(0); | |
| 1070 v.parent = this; | |
| 1071 vthis = v; | |
| 1072 } | |
| 1073 | |
| 1074 // Declare hidden variable _arguments[] and _argptr | |
| 1075 if (f.varargs == 1) | |
| 1076 { | |
| 1077 version (TARGET_NET) { | |
| 1078 varArgs(sc2, f, argptr, _arguments); | |
| 1079 } else { | |
| 1080 Type t; | |
| 1081 | |
| 1082 if (f.linkage == LINK.LINKd) | |
| 174 | 1083 { |
| 0 | 1084 // Declare _arguments[] |
| 1085 version (BREAKABI) { | |
| 174 | 1086 v_arguments = new VarDeclaration(Loc(0), global.typeinfotypelist.type, Id._arguments_typeinfo, null); |
| 0 | 1087 v_arguments.storage_class = STCparameter; |
| 1088 v_arguments.semantic(sc2); | |
| 1089 sc2.insert(v_arguments); | |
| 1090 v_arguments.parent = this; | |
| 1091 | |
| 1092 //t = Type.typeinfo.type.constOf().arrayOf(); | |
| 174 | 1093 t = global.typeinfo.type.arrayOf(); |
| 0 | 1094 _arguments = new VarDeclaration(Loc(0), t, Id._arguments, null); |
| 1095 _arguments.semantic(sc2); | |
| 1096 sc2.insert(_arguments); | |
| 1097 _arguments.parent = this; | |
| 1098 } else { | |
| 1099 t = Type.typeinfo.type.arrayOf(); | |
| 1100 v_arguments = new VarDeclaration(Loc(0), t, Id._arguments, null); | |
| 1101 v_arguments.storage_class = STC.STCparameter | STC.STCin; | |
| 1102 v_arguments.semantic(sc2); | |
| 1103 sc2.insert(v_arguments); | |
| 1104 v_arguments.parent = this; | |
| 1105 } | |
| 1106 } | |
| 1107 if (f.linkage == LINK.LINKd || (parameters && parameters.dim)) | |
| 1108 { // Declare _argptr | |
| 1109 version (IN_GCC) { | |
| 1110 t = d_gcc_builtin_va_list_d_type; | |
| 1111 } else { | |
| 1112 t = Type.tvoid.pointerTo(); | |
| 1113 } | |
| 1114 argptr = new VarDeclaration(Loc(0), t, Id._argptr, null); | |
| 1115 argptr.semantic(sc2); | |
| 1116 sc2.insert(argptr); | |
| 1117 argptr.parent = this; | |
| 1118 } | |
| 1119 } | |
| 1120 } | |
| 135 | 1121 static if(false) { |
| 0 | 1122 // Propagate storage class from tuple parameters to their element-parameters. |
| 1123 if (f.parameters) | |
| 1124 { | |
|
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1125 foreach (arg; f.parameters) |
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1126 { |
| 0 | 1127 //printf("[%d] arg.type.ty = %d %s\n", i, arg.type.ty, arg.type.toChars()); |
| 1128 if (arg.type.ty == TY.Ttuple) | |
|
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1129 { auto t = cast(TypeTuple)arg.type; |
|
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1130 size_t dim = Parameter.dim(t.arguments); |
| 0 | 1131 for (size_t j = 0; j < dim; j++) |
|
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1132 { |
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1133 auto narg = Parameter.getNth(t.arguments, j); |
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1134 narg.storageClass = arg.storageClass; |
| 0 | 1135 } |
| 1136 } | |
| 1137 } | |
| 1138 } | |
| 135 | 1139 } |
| 0 | 1140 /* Declare all the function parameters as variables |
| 1141 * and install them in parameters[] | |
| 1142 */ | |
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1143 size_t nparams = Parameter.dim(f.parameters); |
| 0 | 1144 if (nparams) |
| 1145 { /* parameters[] has all the tuples removed, as the back end | |
| 1146 * doesn't know about tuples | |
| 1147 */ | |
| 1148 parameters = new Dsymbols(); | |
| 1149 parameters.reserve(nparams); | |
| 1150 for (size_t i = 0; i < nparams; i++) | |
| 1151 { | |
|
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1152 auto arg = Parameter.getNth(f.parameters, i); |
| 0 | 1153 Identifier id = arg.ident; |
| 1154 if (!id) | |
| 1155 { | |
| 1156 /* Generate identifier for un-named parameter, | |
| 1157 * because we need it later on. | |
| 1158 */ | |
| 1159 arg.ident = id = Identifier.generateId("_param_", i); | |
| 1160 } | |
| 1161 Type vtype = arg.type; | |
| 1162 if (isPure()) | |
| 1163 vtype = vtype.addMod(MOD.MODconst); | |
| 1164 VarDeclaration v = new VarDeclaration(loc, vtype, id, null); | |
| 1165 //printf("declaring parameter %s of type %s\n", v.toChars(), v.type.toChars()); | |
| 1166 v.storage_class |= STC.STCparameter; | |
| 1167 if (f.varargs == 2 && i + 1 == nparams) | |
| 1168 v.storage_class |= STC.STCvariadic; | |
| 1169 v.storage_class |= arg.storageClass & (STC.STCin | STC.STCout | STC.STCref | STC.STClazy | STC.STCfinal | STC.STC_TYPECTOR | STC.STCnodtor); | |
| 1170 v.semantic(sc2); | |
| 1171 if (!sc2.insert(v)) | |
| 1172 error("parameter %s.%s is already defined", toChars(), v.toChars()); | |
| 1173 else | |
|
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1174 parameters.push(v); |
| 0 | 1175 localsymtab.insert(v); |
| 1176 v.parent = this; | |
| 1177 } | |
| 1178 } | |
| 1179 | |
| 1180 // Declare the tuple symbols and put them in the symbol table, | |
| 1181 // but not in parameters[]. | |
| 1182 if (f.parameters) | |
| 1183 { | |
|
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1184 foreach (arg; f.parameters) |
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1185 { |
| 0 | 1186 if (!arg.ident) |
| 1187 continue; // never used, so ignore | |
| 1188 if (arg.type.ty == TY.Ttuple) | |
|
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1189 { auto t = cast(TypeTuple)arg.type; |
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1190 size_t dim = Parameter.dim(t.arguments); |
| 0 | 1191 Objects exps = new Objects(); |
| 1192 exps.setDim(dim); | |
| 1193 for (size_t j = 0; j < dim; j++) | |
|
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1194 { auto narg = Parameter.getNth(t.arguments, j); |
| 0 | 1195 assert(narg.ident); |
| 1196 VarDeclaration v = sc2.search(Loc(0), narg.ident, null).isVarDeclaration(); | |
| 1197 assert(v); | |
| 1198 Expression e = new VarExp(v.loc, v); | |
|
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1199 exps[j] = e; |
| 0 | 1200 } |
| 1201 assert(arg.ident); | |
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1202 auto v = new TupleDeclaration(loc, arg.ident, exps); |
| 0 | 1203 //printf("declaring tuple %s\n", v.toChars()); |
| 1204 v.isexp = 1; | |
| 1205 if (!sc2.insert(v)) | |
| 1206 error("parameter %s.%s is already defined", toChars(), v.toChars()); | |
| 1207 localsymtab.insert(v); | |
| 1208 v.parent = this; | |
| 1209 } | |
| 1210 } | |
| 1211 } | |
| 1212 | |
| 1213 /* Do the semantic analysis on the [in] preconditions and | |
| 1214 * [out] postconditions. | |
| 1215 */ | |
| 1216 sc2.incontract++; | |
| 1217 | |
| 1218 if (frequire) | |
| 1219 { /* frequire is composed of the [in] contracts | |
| 1220 */ | |
| 1221 // BUG: need to error if accessing out parameters | |
| 1222 // BUG: need to treat parameters as const | |
| 1223 // BUG: need to disallow returns and throws | |
| 1224 // BUG: verify that all in and ref parameters are read | |
| 1225 frequire = frequire.semantic(sc2); | |
| 1226 labtab = null; // so body can't refer to labels | |
| 1227 } | |
| 1228 | |
| 1229 if (fensure || addPostInvariant()) | |
| 79 | 1230 { |
| 1231 /* fensure is composed of the [out] contracts | |
| 0 | 1232 */ |
| 79 | 1233 if (!type.nextOf()) // if return type is inferred |
| 1234 { | |
| 1235 /* This case: | |
| 1236 * auto fp = function() out { } body { }; | |
| 1237 * Can fix by doing semantic() onf fbody first. | |
| 1238 */ | |
| 1239 error("post conditions are not supported if the return type is inferred"); | |
| 1240 return; | |
| 1241 } | |
| 174 | 1242 |
| 0 | 1243 ScopeDsymbol sym = new ScopeDsymbol(); |
| 1244 sym.parent = sc2.scopesym; | |
| 1245 sc2 = sc2.push(sym); | |
| 1246 | |
| 1247 assert(type.nextOf()); | |
| 1248 if (type.nextOf().ty == TY.Tvoid) | |
| 1249 { | |
| 1250 if (outId) | |
| 1251 error("void functions have no result"); | |
| 1252 } | |
| 1253 else | |
| 1254 { | |
| 1255 if (!outId) | |
| 1256 outId = Id.result; // provide a default | |
| 1257 } | |
| 1258 | |
| 1259 if (outId) | |
| 1260 { // Declare result variable | |
| 1261 Loc loc = this.loc; | |
| 1262 | |
| 1263 if (fensure) | |
| 1264 loc = fensure.loc; | |
| 1265 | |
|
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1266 auto v = new VarDeclaration(loc, type.nextOf(), outId, null); |
| 0 | 1267 v.noauto = true; |
| 1268 version (DMDV2) { | |
|
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1269 if (!isVirtual()) |
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1270 v.storage_class |= STC.STCconst; |
| 0 | 1271 if (f.isref) |
| 1272 { | |
| 1273 v.storage_class |= STC.STCref | STC.STCforeach; | |
| 1274 } | |
| 1275 } | |
| 1276 sc2.incontract--; | |
| 1277 v.semantic(sc2); | |
| 1278 sc2.incontract++; | |
| 1279 if (!sc2.insert(v)) | |
| 1280 error("out result %s is already defined", v.toChars()); | |
| 1281 v.parent = this; | |
| 1282 vresult = v; | |
| 1283 | |
| 1284 // vresult gets initialized with the function return value | |
| 1285 // in ReturnStatement.semantic() | |
| 1286 } | |
| 1287 | |
| 1288 // BUG: need to treat parameters as const | |
| 1289 // BUG: need to disallow returns and throws | |
| 1290 if (fensure) | |
| 1291 { fensure = fensure.semantic(sc2); | |
| 1292 labtab = null; // so body can't refer to labels | |
| 1293 } | |
| 1294 | |
| 1295 if (!global.params.useOut) | |
| 1296 { fensure = null; // discard | |
| 1297 vresult = null; | |
| 1298 } | |
| 1299 | |
| 1300 // Postcondition invariant | |
| 1301 if (addPostInvariant()) | |
| 1302 { | |
| 1303 Expression e = null; | |
| 1304 if (isCtorDeclaration()) | |
| 1305 { | |
| 1306 // Call invariant directly only if it exists | |
| 1307 InvariantDeclaration inv = ad.inv; | |
| 1308 ClassDeclaration cd = ad.isClassDeclaration(); | |
| 1309 | |
| 1310 while (!inv && cd) | |
| 1311 { | |
| 1312 cd = cd.baseClass; | |
| 1313 if (!cd) | |
| 1314 break; | |
| 1315 inv = cd.inv; | |
| 1316 } | |
| 1317 if (inv) | |
| 1318 { | |
| 1319 e = new DsymbolExp(Loc(0), inv); | |
| 1320 e = new CallExp(Loc(0), e); | |
| 1321 e = e.semantic(sc2); | |
| 1322 } | |
| 1323 } | |
| 1324 else | |
| 1325 { // Call invariant virtually | |
| 1326 Expression v = new ThisExp(Loc(0)); | |
| 1327 v.type = vthis.type; | |
| 1328 version (STRUCTTHISREF) { | |
| 1329 if (ad.isStructDeclaration()) | |
| 1330 v = v.addressOf(sc); | |
| 1331 } | |
| 1332 e = new AssertExp(Loc(0), v); | |
| 1333 } | |
| 1334 if (e) | |
| 1335 { | |
| 1336 ExpStatement s = new ExpStatement(Loc(0), e); | |
| 1337 if (fensure) | |
| 1338 fensure = new CompoundStatement(Loc(0), s, fensure); | |
| 1339 else | |
| 1340 fensure = s; | |
| 1341 } | |
| 1342 } | |
| 1343 | |
| 1344 if (fensure) | |
| 1345 { returnLabel = new LabelDsymbol(Id.returnLabel); | |
| 1346 LabelStatement ls = new LabelStatement(Loc(0), Id.returnLabel, fensure); | |
| 1347 ls.isReturnLabel = 1; | |
| 1348 returnLabel.statement = ls; | |
| 1349 } | |
| 1350 sc2 = sc2.pop(); | |
| 1351 } | |
| 1352 | |
| 1353 sc2.incontract--; | |
| 174 | 1354 |
| 0 | 1355 if (fbody) |
| 1356 { ClassDeclaration cd = isClassMember(); | |
| 1357 | |
| 1358 /* If this is a class constructor | |
| 1359 */ | |
| 1360 if (isCtorDeclaration() && cd) | |
| 1361 { | |
| 79 | 1362 for (int i = 0; i < cd.fields.dim; i++) |
| 1363 { VarDeclaration v = cast(VarDeclaration)cd.fields[i]; | |
| 174 | 1364 |
| 79 | 1365 v.ctorinit = 0; |
| 1366 } | |
| 0 | 1367 } |
| 1368 | |
| 1369 if (inferRetType || f.retStyle() != RET.RETstack) | |
| 1370 nrvo_can = 0; | |
| 1371 | |
| 1372 fbody = fbody.semantic(sc2); | |
| 1373 if (!fbody) | |
| 1374 fbody = new CompoundStatement(Loc(0), new Statements()); | |
| 1375 | |
| 1376 if (inferRetType) | |
| 1377 { // If no return type inferred yet, then infer a void | |
| 1378 if (!type.nextOf()) | |
| 1379 { | |
| 1380 (cast(TypeFunction)type).next = Type.tvoid; | |
| 1381 type = type.semantic(loc, sc); | |
| 1382 } | |
| 1383 f = cast(TypeFunction)type; | |
| 1384 } | |
| 174 | 1385 |
| 0 | 1386 if (isStaticCtorDeclaration()) |
| 174 | 1387 { |
| 0 | 1388 /* It's a static constructor. Ensure that all |
| 1389 * ctor consts were initialized. | |
| 1390 */ | |
| 1391 | |
| 1392 Dsymbol p = toParent(); | |
| 1393 ScopeDsymbol add = p.isScopeDsymbol(); | |
| 1394 if (!add) | |
| 1395 { | |
| 1396 error("static constructor can only be member of struct/class/module, not %s %s", p.kind(), p.toChars()); | |
| 1397 } | |
| 1398 else | |
| 1399 { | |
|
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1400 foreach (Dsymbol s; add.members) |
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1401 { |
| 0 | 1402 s.checkCtorConstInit(); |
| 1403 } | |
| 1404 } | |
| 1405 } | |
| 1406 | |
| 1407 if (isCtorDeclaration() && cd) | |
| 1408 { | |
| 1409 //printf("callSuper = x%x\n", sc2.callSuper); | |
| 1410 | |
| 1411 // Verify that all the ctorinit fields got initialized | |
| 1412 if (!(sc2.callSuper & CSX.CSXthis_ctor)) | |
| 1413 { | |
| 1414 for (int i = 0; i < cd.fields.dim; i++) | |
| 79 | 1415 { VarDeclaration v = cast(VarDeclaration)cd.fields[i]; |
| 0 | 1416 |
| 1417 if (v.ctorinit == 0 && v.isCtorinit()) | |
| 1418 error("missing initializer for final field %s", v.toChars()); | |
| 1419 } | |
| 1420 } | |
| 1421 | |
| 1422 if (!(sc2.callSuper & CSX.CSXany_ctor) && | |
| 1423 cd.baseClass && cd.baseClass.ctor) | |
| 1424 { | |
| 1425 sc2.callSuper = 0; | |
| 1426 | |
| 1427 // Insert implicit super() at start of fbody | |
| 1428 Expression e1 = new SuperExp(Loc(0)); | |
| 1429 Expression e = new CallExp(Loc(0), e1); | |
| 1430 | |
| 1431 e = e.trySemantic(sc2); | |
| 1432 if (!e) | |
| 1433 error("no match for implicit super() call in constructor"); | |
| 1434 else | |
| 1435 { | |
| 1436 Statement s = new ExpStatement(Loc(0), e); | |
| 1437 fbody = new CompoundStatement(Loc(0), s, fbody); | |
| 1438 } | |
| 1439 } | |
| 1440 } | |
| 1441 else if (fes) | |
| 1442 { // For foreach(){} body, append a return 0; | |
| 1443 Expression e = new IntegerExp(0); | |
| 1444 Statement s = new ReturnStatement(Loc(0), e); | |
| 1445 fbody = new CompoundStatement(Loc(0), fbody, s); | |
| 1446 assert(!returnLabel); | |
| 1447 } | |
| 1448 else if (!hasReturnExp && type.nextOf().ty != TY.Tvoid) | |
| 1449 error("expected to return a value of type %s", type.nextOf().toChars()); | |
| 1450 else if (!inlineAsm) | |
| 1451 { | |
| 1452 version (DMDV2) { | |
| 1453 BE blockexit = fbody ? fbody.blockExit() : BE.BEfallthru; | |
| 1454 if (f.isnothrow && blockexit & BE.BEthrow) | |
| 1455 error("'%s' is nothrow yet may throw", toChars()); | |
| 1456 | |
| 1457 int offend = blockexit & BE.BEfallthru; | |
| 1458 } | |
| 1459 if (type.nextOf().ty == TY.Tvoid) | |
| 1460 { | |
| 1461 if (offend && isMain()) | |
| 1462 { // Add a return 0; statement | |
| 1463 Statement s = new ReturnStatement(Loc(0), new IntegerExp(0)); | |
| 1464 fbody = new CompoundStatement(Loc(0), fbody, s); | |
| 1465 } | |
| 1466 } | |
| 1467 else | |
| 1468 { | |
| 1469 if (offend) | |
| 174 | 1470 { |
| 0 | 1471 Expression e; |
| 1472 version (DMDV1) { | |
| 1473 warning(loc, "no return exp; or assert(0); at end of function"); | |
| 1474 } else { | |
| 1475 error("no return exp; or assert(0); at end of function"); | |
| 1476 } | |
| 1477 if (global.params.useAssert && | |
| 1478 !global.params.useInline) | |
| 1479 { /* Add an assert(0, msg); where the missing return | |
| 1480 * should be. | |
| 1481 */ | |
| 1482 e = new AssertExp( | |
| 1483 endloc, | |
| 1484 new IntegerExp(0), | |
| 1485 new StringExp(loc, "missing return expression") | |
| 1486 ); | |
| 1487 } | |
| 1488 else | |
| 1489 e = new HaltExp(endloc); | |
| 1490 | |
| 1491 e = new CommaExp(Loc(0), e, type.nextOf().defaultInit(Loc(0))); | |
| 1492 e = e.semantic(sc2); | |
| 1493 Statement s = new ExpStatement(Loc(0), e); | |
| 1494 fbody = new CompoundStatement(Loc(0), fbody, s); | |
| 1495 } | |
| 1496 } | |
| 1497 } | |
| 1498 } | |
| 1499 | |
| 1500 { | |
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1501 auto a = new Statements(); |
| 0 | 1502 |
| 1503 // Merge in initialization of 'out' parameters | |
| 1504 if (parameters) | |
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1505 { foreach (Dsymbol s; parameters) |
| 0 | 1506 { |
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1507 auto v = cast(VarDeclaration)s; |
| 0 | 1508 if (v.storage_class & STC.STCout) |
| 1509 { | |
| 1510 assert(v.init); | |
| 1511 ExpInitializer ie = v.init.isExpInitializer(); | |
| 1512 assert(ie); | |
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1513 a.push(new ExpStatement(Loc(0), ie.exp)); |
| 0 | 1514 } |
| 1515 } | |
| 1516 } | |
| 1517 | |
| 1518 if (argptr) | |
| 1519 { // Initialize _argptr to point past non-variadic arg | |
| 1520 version (IN_GCC) { | |
| 73 | 1521 // Handled in FuncDeclaration.toObjFile |
| 1522 v_argptr = argptr; | |
| 1523 v_argptr.init = new VoidInitializer(loc); | |
| 0 | 1524 } else { |
| 73 | 1525 Type t = argptr.type; |
| 1526 VarDeclaration p; | |
| 1527 uint offset; | |
| 1528 | |
| 1529 Expression e1 = new VarExp(Loc(0), argptr); | |
| 1530 if (parameters && parameters.dim) | |
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1531 p = cast(VarDeclaration)parameters[parameters.length - 1]; |
| 73 | 1532 else |
| 1533 p = v_arguments; // last parameter is _arguments[] | |
| 1534 if (p.storage_class & STClazy) | |
| 1535 // If the last parameter is lazy, it's the size of a delegate | |
| 1536 offset = PTRSIZE * 2; | |
| 1537 else | |
| 1538 offset = cast(size_t)p.type.size(); | |
| 1539 offset = (offset + 3) & ~3; // assume stack aligns on 4 | |
| 1540 Expression e = new SymOffExp(Loc(0), p, offset); | |
| 1541 e = new AssignExp(Loc(0), e1, e); | |
| 1542 e.type = t; | |
|
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|
1543 a.push(new ExpStatement(Loc(0), e)); |
| 98 | 1544 p.isargptr = true; |
| 0 | 1545 } |
| 1546 } | |
| 1547 | |
| 1548 if (_arguments) | |
| 1549 { | |
| 1550 /* Advance to elements[] member of TypeInfo_Tuple with: | |
| 1551 * _arguments = v_arguments.elements; | |
| 1552 */ | |
| 1553 Expression e = new VarExp(Loc(0), v_arguments); | |
| 1554 e = new DotIdExp(Loc(0), e, Id.elements); | |
| 1555 Expression e1 = new VarExp(Loc(0), _arguments); | |
| 1556 e = new AssignExp(Loc(0), e1, e); | |
| 1557 e.op = TOK.TOKconstruct; | |
| 1558 e = e.semantic(sc2); | |
|
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|
1559 a.push(new ExpStatement(Loc(0), e)); |
| 0 | 1560 } |
| 1561 | |
| 1562 // Merge contracts together with body into one compound statement | |
| 1563 | |
| 1564 version (_DH) { | |
| 1565 if (frequire && global.params.useIn) | |
| 1566 { frequire.incontract = 1; | |
| 1567 a.push(frequire); | |
| 1568 } | |
| 1569 } else { | |
| 1570 if (frequire && global.params.useIn) | |
|
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|
1571 a.push(frequire); |
| 0 | 1572 } |
| 1573 | |
| 1574 // Precondition invariant | |
| 1575 if (addPreInvariant()) | |
| 1576 { | |
| 1577 Expression e = null; | |
| 1578 if (isDtorDeclaration()) | |
| 1579 { | |
| 1580 // Call invariant directly only if it exists | |
| 1581 InvariantDeclaration inv = ad.inv; | |
| 1582 ClassDeclaration cd = ad.isClassDeclaration(); | |
| 1583 | |
| 1584 while (!inv && cd) | |
| 1585 { | |
| 1586 cd = cd.baseClass; | |
| 1587 if (!cd) | |
| 1588 break; | |
| 1589 inv = cd.inv; | |
| 1590 } | |
| 1591 if (inv) | |
| 1592 { | |
| 1593 e = new DsymbolExp(Loc(0), inv); | |
| 1594 e = new CallExp(Loc(0), e); | |
| 1595 e = e.semantic(sc2); | |
| 1596 } | |
| 1597 } | |
| 1598 else | |
| 1599 { // Call invariant virtually | |
| 1600 Expression v = new ThisExp(Loc(0)); | |
| 1601 v.type = vthis.type; | |
| 1602 version (STRUCTTHISREF) { | |
| 1603 if (ad.isStructDeclaration()) | |
| 1604 v = v.addressOf(sc); | |
| 1605 } | |
| 1606 Expression se = new StringExp(Loc(0), "null this"); | |
| 1607 se = se.semantic(sc); | |
| 1608 se.type = Type.tchar.arrayOf(); | |
| 1609 e = new AssertExp(loc, v, se); | |
| 1610 } | |
| 1611 if (e) | |
| 1612 { | |
|
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|
1613 auto s = new ExpStatement(Loc(0), e); |
|
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|
1614 a.push(s); |
| 0 | 1615 } |
| 1616 } | |
| 1617 | |
| 1618 if (fbody) | |
|
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|
1619 a.push(fbody); |
| 0 | 1620 |
| 1621 if (fensure) | |
| 1622 { | |
|
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|
1623 a.push(returnLabel.statement); |
| 0 | 1624 |
| 1625 if (type.nextOf().ty != TY.Tvoid) | |
| 1626 { | |
| 1627 // Create: return vresult; | |
| 1628 assert(vresult); | |
| 1629 Expression e = new VarExp(Loc(0), vresult); | |
| 1630 if (tintro) | |
| 1631 { e = e.implicitCastTo(sc, tintro.nextOf()); | |
| 1632 e = e.semantic(sc); | |
| 1633 } | |
|
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|
1634 auto s = new ReturnStatement(Loc(0), e); |
|
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|
1635 a.push(s); |
| 0 | 1636 } |
| 1637 } | |
| 1638 | |
| 1639 fbody = new CompoundStatement(Loc(0), a); | |
| 1640 version (DMDV2) { | |
| 1641 /* Append destructor calls for parameters as finally blocks. | |
| 1642 */ | |
| 1643 if (parameters) | |
|
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|
1644 { foreach(Dsymbol symb; parameters) |
| 0 | 1645 { |
|
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|
1646 auto v = cast(VarDeclaration)symb; |
| 0 | 1647 |
| 1648 if (v.storage_class & (STC.STCref | STC.STCout)) | |
| 1649 continue; | |
| 1650 | |
| 1651 /* Don't do this for static arrays, since static | |
| 1652 * arrays are called by reference. Remove this | |
| 1653 * when we change them to call by value. | |
| 1654 */ | |
| 1655 if (v.type.toBasetype().ty == TY.Tsarray) | |
| 1656 continue; | |
| 1657 | |
| 1658 Expression e = v.callAutoDtor(sc); | |
| 1659 if (e) | |
| 1660 { Statement s = new ExpStatement(Loc(0), e); | |
| 1661 s = s.semantic(sc); | |
| 1662 if (fbody.blockExit() == BE.BEfallthru) | |
| 1663 fbody = new CompoundStatement(Loc(0), fbody, s); | |
| 1664 else | |
| 1665 fbody = new TryFinallyStatement(Loc(0), fbody, s); | |
| 1666 } | |
| 1667 } | |
| 1668 } | |
| 1669 } | |
| 1670 | |
| 1671 static if (true) { | |
| 1672 if (isSynchronized()) | |
| 1673 { /* Wrap the entire function body in a synchronized statement | |
| 1674 */ | |
| 1675 ClassDeclaration cd = parent.isClassDeclaration(); | |
| 1676 if (cd) | |
| 1677 { | |
| 1678 ///version (TARGET_WINDOS) { | |
| 1679 if (/*config.flags2 & CFG2.CFG2seh &&*/ // always on for WINDOS | |
| 1680 !isStatic() && !fbody.usesEH()) | |
| 1681 { | |
| 1682 /* The back end uses the "jmonitor" hack for syncing; | |
| 1683 * no need to do the sync at this level. | |
| 1684 */ | |
| 1685 } | |
| 1686 else | |
| 1687 ///} | |
| 1688 { | |
| 1689 Expression vsync; | |
| 1690 if (isStatic()) | |
| 174 | 1691 { |
| 0 | 1692 // The monitor is in the ClassInfo |
| 1693 vsync = new DotIdExp(loc, new DsymbolExp(loc, cd), Id.classinfo_); | |
| 1694 } | |
| 1695 else | |
| 1696 { // 'this' is the monitor | |
| 1697 vsync = new VarExp(loc, vthis); | |
| 1698 } | |
| 1699 fbody = new PeelStatement(fbody); // don't redo semantic() | |
| 1700 fbody = new SynchronizedStatement(loc, vsync, fbody); | |
| 1701 fbody = fbody.semantic(sc2); | |
| 1702 } | |
| 1703 } | |
| 1704 else | |
| 1705 { | |
| 1706 error("synchronized function %s must be a member of a class", toChars()); | |
| 1707 } | |
| 1708 } | |
| 1709 } | |
| 1710 } | |
| 1711 | |
| 1712 sc2.callSuper = 0; | |
| 1713 sc2.pop(); | |
| 1714 } | |
| 179 | 1715 |
| 1716 semanticRun = PASSsemantic3done; | |
| 0 | 1717 } |
| 174 | 1718 |
| 0 | 1719 // called from semantic3 |
| 1720 void varArgs(Scope sc, TypeFunction, ref VarDeclaration, ref VarDeclaration) | |
| 1721 { | |
| 1722 assert(false); | |
| 1723 } | |
|
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1724 |
|
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1725 override void toCBuffer(OutBuffer buf, HdrGenState* hgs) |
| 0 | 1726 { |
|
93
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1727 // writef("FuncDeclaration.toCBuffer() '%s'\n", toChars()); |
|
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|
1728 |
|
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|
1729 StorageClassDeclaration.stcToCBuffer(buf, storage_class); |
|
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|
1730 type.toCBuffer(buf, ident, hgs); |
|
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|
1731 bodyToCBuffer(buf, hgs); |
| 0 | 1732 } |
| 174 | 1733 |
|
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1734 void bodyToCBuffer(OutBuffer buf, HdrGenState* hgs) |
| 0 | 1735 { |
|
93
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|
1736 if (fbody && |
|
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|
1737 (!hgs.hdrgen || hgs.tpltMember || canInline(1,1)) |
|
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|
1738 ) |
|
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|
1739 { |
|
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|
1740 buf.writenl(); |
|
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|
1741 |
|
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|
1742 // in{} |
|
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|
1743 if (frequire) |
|
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|
1744 { |
|
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|
1745 buf.writestring("in"); |
|
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|
1746 buf.writenl(); |
|
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|
1747 frequire.toCBuffer(buf, hgs); |
|
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|
1748 } |
|
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|
1749 |
|
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|
1750 // out{} |
|
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|
1751 if (fensure) |
|
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|
1752 { |
|
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|
1753 buf.writestring("out"); |
|
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|
1754 if (outId) |
|
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|
1755 { |
|
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|
1756 buf.writebyte('('); |
|
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|
1757 buf.writestring(outId.toChars()); |
|
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|
1758 buf.writebyte(')'); |
|
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diff
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|
1759 } |
|
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|
1760 buf.writenl(); |
|
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|
1761 fensure.toCBuffer(buf, hgs); |
|
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diff
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|
1762 } |
|
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|
1763 |
|
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|
1764 if (frequire || fensure) |
|
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|
1765 { |
|
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|
1766 buf.writestring("body"); |
|
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|
1767 buf.writenl(); |
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|
1768 } |
|
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|
1769 |
|
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|
1770 buf.writebyte('{'); |
|
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|
1771 buf.writenl(); |
|
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|
1772 fbody.toCBuffer(buf, hgs); |
|
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|
1773 buf.writebyte('}'); |
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|
1774 buf.writenl(); |
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|
1775 } |
|
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|
1776 else |
|
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|
1777 { buf.writeByte(';'); |
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1778 buf.writenl(); |
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|
1779 } |
| 0 | 1780 } |
| 174 | 1781 |
| 0 | 1782 /**************************************************** |
| 1783 * Determine if 'this' overrides fd. | |
| 1784 * Return true if it does. | |
| 1785 */ | |
| 1786 bool overrides(FuncDeclaration fd) | |
| 1787 { | |
| 1788 bool result = false; | |
| 1789 | |
| 1790 if (fd.ident == ident) | |
| 1791 { | |
| 1792 int cov = type.covariant(fd.type); | |
| 1793 if (cov) | |
| 174 | 1794 { |
| 0 | 1795 ClassDeclaration cd1 = toParent().isClassDeclaration(); |
| 1796 ClassDeclaration cd2 = fd.toParent().isClassDeclaration(); | |
| 1797 | |
| 1798 if (cd1 && cd2 && cd2.isBaseOf(cd1, null)) | |
| 1799 result = true; | |
| 1800 } | |
| 1801 } | |
| 1802 return result; | |
| 1803 } | |
| 174 | 1804 |
| 0 | 1805 /************************************************* |
| 1806 * Find index of function in vtbl[0..dim] that | |
| 1807 * this function overrides. | |
| 179 | 1808 * Prefer an exact match to a covariant one. |
| 0 | 1809 * Returns: |
| 1810 * -1 didn't find one | |
| 1811 * -2 can't determine because of forward references | |
| 1812 */ | |
| 1813 int findVtblIndex(Array vtbl, int dim) | |
| 1814 { | |
| 179 | 1815 FuncDeclaration mismatch = null; |
| 1816 int bestvi = -1; | |
| 0 | 1817 for (int vi = 0; vi < dim; vi++) |
| 1818 { | |
| 1819 FuncDeclaration fdv = (cast(Dsymbol)vtbl.data[vi]).isFuncDeclaration(); | |
| 1820 if (fdv && fdv.ident is ident) | |
| 1821 { | |
| 179 | 1822 if (type.equals(fdv.type)) // if exact match |
| 1823 return vi; // no need to look further | |
| 0 | 1824 int cov = type.covariant(fdv.type); |
| 1825 //printf("\tbaseclass cov = %d\n", cov); | |
| 1826 switch (cov) | |
| 1827 { | |
| 1828 case 0: // types are distinct | |
| 1829 break; | |
| 1830 | |
| 1831 case 1: | |
| 179 | 1832 bestvi = vi; // covariant, but not identical |
| 1833 break; // keep looking for an exact match | |
| 0 | 1834 |
| 1835 case 2: | |
| 179 | 1836 mismatch = fdv; // overrides, but is not covariant |
| 1837 break; // keep looking for an exact match | |
| 0 | 1838 |
| 1839 case 3: | |
| 1840 return -2; // forward references | |
|
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1841 |
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|
1842 default: |
|
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|
1843 writef("cov = %d\n", cov); |
|
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|
1844 assert(false); |
| 0 | 1845 } |
| 1846 } | |
| 1847 } | |
| 179 | 1848 if (bestvi == -1 && mismatch) |
| 1849 { | |
| 1850 //type.print(); | |
| 1851 //mismatch.type.print(); | |
| 1852 //writef("%s %s\n", type.deco, mismatch.type.deco); | |
| 1853 error("of type %s overrides but is not covariant with %s of type %s", | |
| 1854 type.toChars(), mismatch.toPrettyChars(), mismatch.type.toChars()); | |
| 1855 } | |
| 1856 return bestvi; | |
| 0 | 1857 } |
| 1858 | |
| 1859 /**************************************************** | |
| 1860 * Overload this FuncDeclaration with the new one f. | |
| 1861 * Return !=0 if successful; i.e. no conflict. | |
| 1862 */ | |
| 72 | 1863 override bool overloadInsert(Dsymbol s) |
| 0 | 1864 { |
| 1865 FuncDeclaration f; | |
| 1866 AliasDeclaration a; | |
| 1867 | |
| 1868 //writef("FuncDeclaration.overloadInsert(%s)\n", s.toChars()); | |
| 1869 a = s.isAliasDeclaration(); | |
| 1870 if (a) | |
| 1871 { | |
| 1872 if (overnext) | |
| 1873 return overnext.overloadInsert(a); | |
| 1874 | |
| 1875 if (!a.aliassym && a.type.ty != TY.Tident && a.type.ty != TY.Tinstance) | |
| 1876 { | |
| 1877 //writef("\ta = '%s'\n", a.type.toChars()); | |
| 1878 return false; | |
| 1879 } | |
| 1880 overnext = a; | |
| 1881 //printf("\ttrue: no conflict\n"); | |
| 1882 return true; | |
| 1883 } | |
| 1884 f = s.isFuncDeclaration(); | |
| 1885 if (!f) | |
| 1886 return false; | |
| 1887 | |
| 1888 static if (false) { | |
| 1889 /* Disable this check because: | |
| 1890 * const void foo(); | |
| 1891 * semantic() isn't run yet on foo(), so the const hasn't been | |
| 1892 * applied yet. | |
| 1893 */ | |
| 1894 if (type) | |
| 174 | 1895 { |
| 0 | 1896 printf("type = %s\n", type.toChars()); |
| 1897 printf("f.type = %s\n", f.type.toChars()); | |
| 1898 } | |
| 1899 if (type && f.type && // can be null for overloaded constructors | |
| 1900 f.type.covariant(type) && | |
| 1901 f.type.mod == type.mod && | |
| 1902 !isFuncAliasDeclaration()) | |
| 1903 { | |
| 1904 //printf("\tfalse: conflict %s\n", kind()); | |
| 1905 return false; | |
| 1906 } | |
| 1907 } | |
| 1908 | |
| 1909 if (overnext) | |
| 1910 return overnext.overloadInsert(f); | |
| 1911 overnext = f; | |
| 1912 //printf("\ttrue: no conflict\n"); | |
| 1913 return true; | |
| 1914 } | |
| 174 | 1915 |
| 0 | 1916 FuncDeclaration overloadExactMatch(Type t) |
| 1917 { | |
| 1918 Param1 p; | |
| 1919 p.t = t; | |
| 1920 p.f = null; | |
| 158 | 1921 overloadApply(this, p); |
| 0 | 1922 return p.f; |
| 1923 } | |
| 174 | 1924 |
| 0 | 1925 FuncDeclaration overloadResolve(Loc loc, Expression ethis, Expressions arguments, int flags = 0) |
| 1926 { | |
| 1927 TypeFunction tf; | |
| 1928 Match m; | |
| 1929 | |
| 1930 static if (false) { | |
| 1931 printf("FuncDeclaration.overloadResolve('%s')\n", toChars()); | |
| 1932 if (arguments) | |
| 174 | 1933 { |
| 0 | 1934 int i; |
| 1935 | |
| 1936 for (i = 0; i < arguments.dim; i++) | |
| 174 | 1937 { |
| 0 | 1938 Expression arg; |
| 1939 | |
| 1940 arg = cast(Expression)arguments.data[i]; | |
| 1941 assert(arg.type); | |
| 1942 printf("\t%s: ", arg.toChars()); | |
| 1943 arg.type.print(); | |
| 1944 } | |
| 1945 } | |
| 1946 } | |
| 1947 | |
| 1948 m.last = MATCH.MATCHnomatch; | |
| 1949 overloadResolveX(&m, this, ethis, arguments); | |
| 1950 | |
| 1951 if (m.count == 1) // exactly one match | |
| 1952 { | |
| 1953 return m.lastf; | |
| 1954 } | |
| 1955 else | |
| 1956 { | |
| 1957 scope OutBuffer buf = new OutBuffer(); | |
| 1958 | |
| 1959 buf.writeByte('('); | |
| 1960 if (arguments) | |
| 1961 { | |
| 1962 HdrGenState hgs; | |
| 1963 | |
| 1964 argExpTypesToCBuffer(buf, arguments, &hgs); | |
| 1965 buf.writeByte(')'); | |
| 1966 if (ethis) | |
| 1967 ethis.type.modToBuffer(buf); | |
| 1968 } | |
| 1969 else | |
| 1970 buf.writeByte(')'); | |
| 1971 | |
| 1972 if (m.last == MATCH.MATCHnomatch) | |
| 1973 { | |
| 1974 if (flags & 1) // if do not print error messages | |
| 1975 return null; // no match | |
| 1976 | |
| 1977 tf = cast(TypeFunction)type; | |
| 1978 | |
| 1979 scope OutBuffer buf2 = new OutBuffer(); | |
| 1980 tf.modToBuffer(buf2); | |
| 1981 | |
| 1982 //printf("tf = %s, args = %s\n", tf.deco, ((Expression *)arguments.data[0]).type.deco); | |
| 1983 error(loc, "%s%s is not callable using argument types %s", | |
|
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1984 Parameter.argsTypesToChars(tf.parameters, tf.varargs), |
| 0 | 1985 buf2.toChars(), |
| 1986 buf.toChars()); | |
| 1987 return m.anyf; // as long as it's not a FuncAliasDeclaration | |
| 1988 } | |
| 1989 else | |
| 1990 { | |
| 1991 static if (true) { | |
| 1992 TypeFunction t1 = cast(TypeFunction)m.lastf.type; | |
| 1993 TypeFunction t2 = cast(TypeFunction)m.nextf.type; | |
| 1994 | |
| 1995 error(loc, "called with argument types:\n\t(%s)\nmatches both:\n\t%s%s\nand:\n\t%s%s", | |
| 1996 buf.toChars(), | |
|
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1997 m.lastf.toPrettyChars(), Parameter.argsTypesToChars(t1.parameters, t1.varargs), |
|
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1998 m.nextf.toPrettyChars(), Parameter.argsTypesToChars(t2.parameters, t2.varargs)); |
| 0 | 1999 } else { |
| 2000 error(loc, "overloads %s and %s both match argument list for %s", | |
| 2001 m.lastf.type.toChars(), | |
| 2002 m.nextf.type.toChars(), | |
| 2003 m.lastf.toChars()); | |
| 2004 } | |
| 2005 return m.lastf; | |
| 2006 } | |
| 2007 } | |
| 2008 } | |
| 174 | 2009 |
| 0 | 2010 /************************************* |
| 2011 * Determine partial specialization order of 'this' vs g. | |
| 2012 * This is very similar to TemplateDeclaration.leastAsSpecialized(). | |
| 2013 * Returns: | |
| 2014 * match 'this' is at least as specialized as g | |
| 2015 * 0 g is more specialized than 'this' | |
| 2016 */ | |
| 2017 MATCH leastAsSpecialized(FuncDeclaration g) | |
| 2018 { | |
| 2019 version (LOG_LEASTAS) { | |
| 2020 printf("%s.leastAsSpecialized(%s)\n", toChars(), g.toChars()); | |
| 2021 } | |
| 2022 | |
| 2023 /* This works by calling g() with f()'s parameters, and | |
| 2024 * if that is possible, then f() is at least as specialized | |
| 2025 * as g() is. | |
| 2026 */ | |
| 2027 | |
| 2028 TypeFunction tf = cast(TypeFunction)type; | |
| 2029 TypeFunction tg = cast(TypeFunction)g.type; | |
|
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2030 size_t nfparams = Parameter.dim(tf.parameters); |
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2031 size_t ngparams = Parameter.dim(tg.parameters); |
| 0 | 2032 MATCH match = MATCHexact; |
| 2033 | |
| 2034 /* If both functions have a 'this' pointer, and the mods are not | |
| 2035 * the same and g's is not const, then this is less specialized. | |
| 2036 */ | |
| 2037 if (needThis() && g.needThis()) | |
| 2038 { | |
| 2039 if (tf.mod != tg.mod) | |
| 2040 { | |
| 2041 if (tg.mod == MODconst) | |
| 2042 match = MATCHconst; | |
| 2043 else | |
| 2044 return MATCHnomatch; | |
| 2045 } | |
| 2046 } | |
| 2047 | |
| 2048 /* Create a dummy array of arguments out of the parameters to f() | |
| 2049 */ | |
| 2050 scope Expressions args = new Expressions(); | |
| 2051 args.setDim(nfparams); | |
| 2052 for (int u = 0; u < nfparams; u++) | |
| 2053 { | |
|
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|
2054 auto p = Parameter.getNth(tf.parameters, u); |
| 0 | 2055 Expression e; |
| 2056 if (p.storageClass & (STCref | STCout)) | |
| 2057 { | |
| 2058 e = new IdentifierExp(Loc(0), p.ident); | |
| 2059 e.type = p.type; | |
| 2060 } | |
| 2061 else | |
| 2062 e = p.type.defaultInit(Loc(0)); | |
| 2063 | |
|
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|
2064 args[u] = e; |
| 0 | 2065 } |
| 2066 | |
| 2067 MATCH m = cast(MATCH) tg.callMatch(null, args); | |
| 2068 if (m) | |
| 2069 { | |
| 2070 /* A variadic parameter list is less specialized than a | |
| 2071 * non-variadic one. | |
| 2072 */ | |
| 2073 if (tf.varargs && !tg.varargs) | |
| 2074 goto L1; // less specialized | |
| 2075 | |
| 2076 version (LOG_LEASTAS) { | |
| 2077 printf(" matches %d, so is least as specialized\n", m); | |
| 2078 } | |
| 2079 return m; | |
| 2080 } | |
| 2081 L1: | |
| 2082 version (LOG_LEASTAS) { | |
| 2083 printf(" doesn't match, so is not as specialized\n"); | |
| 2084 } | |
| 2085 return MATCHnomatch; | |
| 2086 } | |
| 174 | 2087 |
| 0 | 2088 /******************************** |
| 2089 * Labels are in a separate scope, one per function. | |
| 2090 */ | |
| 2091 LabelDsymbol searchLabel(Identifier ident) | |
| 2092 { | |
| 2093 Dsymbol s; | |
| 2094 | |
| 2095 if (!labtab) | |
| 2096 labtab = new DsymbolTable(); // guess we need one | |
| 2097 | |
| 2098 s = labtab.lookup(ident); | |
| 2099 if (!s) | |
| 2100 { | |
| 2101 s = new LabelDsymbol(ident); | |
| 2102 labtab.insert(s); | |
| 2103 } | |
| 2104 | |
| 2105 return cast(LabelDsymbol)s; | |
| 2106 } | |
| 174 | 2107 |
| 0 | 2108 /**************************************** |
| 2109 * If non-static member function that has a 'this' pointer, | |
| 2110 * return the aggregate it is a member of. | |
| 2111 * Otherwise, return null. | |
| 2112 */ | |
| 72 | 2113 override AggregateDeclaration isThis() |
| 0 | 2114 { |
| 2115 AggregateDeclaration ad = null; | |
| 2116 | |
| 2117 //printf("+FuncDeclaration.isThis() '%s'\n", toChars()); | |
| 2118 if ((storage_class & STC.STCstatic) == 0) | |
| 2119 { | |
| 2120 ad = isMember2(); | |
| 2121 } | |
| 2122 //printf("-FuncDeclaration.isThis() %p\n", ad); | |
| 2123 return ad; | |
| 2124 } | |
| 174 | 2125 |
| 0 | 2126 AggregateDeclaration isMember2() |
| 2127 { | |
| 2128 AggregateDeclaration ad = null; | |
| 2129 | |
| 2130 //printf("+FuncDeclaration.isMember2() '%s'\n", toChars()); | |
| 2131 for (Dsymbol s = this; s; s = s.parent) | |
| 2132 { | |
| 2133 //printf("\ts = '%s', parent = '%s', kind = %s\n", s.toChars(), s.parent.toChars(), s.parent.kind()); | |
| 2134 ad = s.isMember(); | |
| 2135 if (ad) | |
| 2136 { //printf("test4\n"); | |
| 2137 break; | |
| 2138 } | |
| 2139 if (!s.parent || (!s.parent.isTemplateInstance())) | |
| 2140 { //printf("test5\n"); | |
| 2141 break; | |
| 2142 } | |
| 2143 } | |
| 2144 //printf("-FuncDeclaration.isMember2() %p\n", ad); | |
| 2145 return ad; | |
| 2146 } | |
| 174 | 2147 |
| 0 | 2148 /***************************************** |
| 2149 * Determine lexical level difference from 'this' to nested function 'fd'. | |
| 2150 * Error if this cannot call fd. | |
| 2151 * Returns: | |
| 2152 * 0 same level | |
| 2153 * -1 increase nesting by 1 (fd is nested within 'this') | |
| 2154 * >0 decrease nesting by number | |
| 2155 */ | |
| 2156 int getLevel(Loc loc, FuncDeclaration fd) // lexical nesting level difference | |
| 2157 { | |
| 2158 int level; | |
| 2159 Dsymbol s; | |
| 2160 Dsymbol fdparent; | |
| 2161 | |
| 2162 //printf("FuncDeclaration.getLevel(fd = '%s')\n", fd.toChars()); | |
| 2163 fdparent = fd.toParent2(); | |
| 2164 if (fdparent == this) | |
| 2165 return -1; | |
| 2166 s = this; | |
| 2167 level = 0; | |
| 2168 while (fd != s && fdparent != s.toParent2()) | |
| 2169 { | |
| 2170 //printf("\ts = '%s'\n", s.toChars()); | |
| 2171 FuncDeclaration thisfd = s.isFuncDeclaration(); | |
| 2172 if (thisfd) | |
| 174 | 2173 { |
| 0 | 2174 if (!thisfd.isNested() && !thisfd.vthis) |
| 2175 goto Lerr; | |
| 2176 } | |
| 2177 else | |
| 2178 { | |
| 2179 AggregateDeclaration thiscd = s.isAggregateDeclaration(); | |
| 2180 if (thiscd) | |
| 174 | 2181 { |
| 0 | 2182 if (!thiscd.isNested()) |
| 2183 goto Lerr; | |
| 2184 } | |
| 2185 else | |
| 2186 goto Lerr; | |
| 2187 } | |
| 2188 | |
| 2189 s = s.toParent2(); | |
| 2190 assert(s); | |
| 2191 level++; | |
| 2192 } | |
| 2193 return level; | |
| 2194 | |
| 2195 Lerr: | |
| 2196 error(loc, "cannot access frame of function %s", fd.toChars()); | |
| 2197 return 1; | |
| 2198 } | |
| 2199 | |
| 2200 void appendExp(Expression e) | |
| 2201 { | |
| 2202 assert(false); | |
| 2203 } | |
| 2204 | |
| 2205 void appendState(Statement s) | |
| 2206 { | |
| 2207 assert(false); | |
| 2208 } | |
| 2209 | |
| 72 | 2210 override string mangle() |
| 0 | 2211 out (result) |
| 2212 { | |
| 2213 assert(result.length > 0); | |
| 2214 } | |
| 2215 body | |
| 2216 { | |
| 2217 if (isMain()) { | |
| 2218 return "_Dmain"; | |
| 2219 } | |
| 2220 | |
| 2221 if (isWinMain() || isDllMain() || ident == Id.tls_get_addr) | |
| 2222 return ident.toChars(); | |
| 2223 | |
| 2224 assert(this); | |
| 2225 | |
| 2226 return Declaration.mangle(); | |
| 2227 } | |
| 174 | 2228 |
| 72 | 2229 override string toPrettyChars() |
| 0 | 2230 { |
| 2231 if (isMain()) | |
| 2232 return "D main"; | |
| 2233 else | |
| 2234 return Dsymbol.toPrettyChars(); | |
| 2235 } | |
| 174 | 2236 |
| 0 | 2237 int isMain() |
| 2238 { | |
| 2239 return ident is Id.main && linkage != LINK.LINKc && !isMember() && !isNested(); | |
| 2240 } | |
| 174 | 2241 |
| 0 | 2242 int isWinMain() |
| 2243 { | |
| 2244 //printf("FuncDeclaration::isWinMain() %s\n", toChars()); | |
| 2245 static if (false) { | |
| 2246 int x = ident == Id.WinMain && | |
| 2247 linkage != LINK.LINKc && !isMember(); | |
| 2248 printf("%s\n", x ? "yes" : "no"); | |
| 2249 return x; | |
| 2250 } else { | |
| 2251 return ident == Id.WinMain && linkage != LINK.LINKc && !isMember(); | |
| 2252 } | |
| 2253 } | |
| 2254 | |
| 2255 int isDllMain() | |
| 2256 { | |
| 2257 return ident == Id.DllMain && linkage != LINK.LINKc && !isMember(); | |
| 2258 } | |
| 2259 | |
| 2260 /********************************** | |
| 2261 * Determine if function is a builtin one that we can | |
| 2262 * evaluate at compile time. | |
| 2263 */ | |
| 2264 BUILTIN isBuiltin() | |
| 2265 { | |
|
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2266 enum FeZe = "FNaNbeZe"; // pure nothrow real function(real) |
| 0 | 2267 |
| 2268 //printf("FuncDeclaration::isBuiltin() %s\n", toChars()); | |
| 2269 if (builtin == BUILTIN.BUILTINunknown) | |
| 2270 { | |
| 2271 builtin = BUILTIN.BUILTINnot; | |
| 2272 if (parent && parent.isModule()) | |
| 2273 { | |
| 2274 // If it's in the std.math package | |
| 2275 if (parent.ident == Id.math && parent.parent && parent.parent.ident == Id.std && !parent.parent.parent) | |
| 2276 { | |
| 2277 //printf("deco = %s\n", type.deco); | |
| 2278 if (type.deco == FeZe) | |
| 2279 { | |
| 2280 if (ident == Id.sin) | |
| 2281 builtin = BUILTIN.BUILTINsin; | |
| 2282 else if (ident == Id.cos) | |
| 2283 builtin = BUILTIN.BUILTINcos; | |
| 2284 else if (ident == Id.tan) | |
| 2285 builtin = BUILTIN.BUILTINtan; | |
| 2286 else if (ident == Id._sqrt) | |
| 2287 builtin = BUILTIN.BUILTINsqrt; | |
| 2288 else if (ident == Id.fabs) | |
| 2289 builtin = BUILTIN.BUILTINfabs; | |
| 2290 //printf("builtin = %d\n", builtin); | |
| 2291 } | |
| 2292 // if float or double versions | |
| 2293 else if (type.deco == "FNaNbdZd" || type.deco == "FNaNbfZf") | |
| 2294 { | |
| 2295 if (ident == Id._sqrt) | |
| 2296 builtin = BUILTIN.BUILTINsqrt; | |
| 2297 } | |
| 2298 } | |
| 2299 } | |
| 2300 } | |
| 2301 | |
| 2302 return builtin; | |
| 2303 } | |
| 174 | 2304 |
| 72 | 2305 override bool isExport() |
| 0 | 2306 { |
| 2307 return protection == PROT.PROTexport; | |
| 2308 } | |
| 174 | 2309 |
| 72 | 2310 override bool isImportedSymbol() |
| 0 | 2311 { |
| 2312 //printf("isImportedSymbol()\n"); | |
| 2313 //printf("protection = %d\n", protection); | |
| 2314 return (protection == PROT.PROTexport) && !fbody; | |
| 2315 } | |
| 174 | 2316 |
| 72 | 2317 override bool isAbstract() |
| 0 | 2318 { |
| 2319 return (storage_class & STC.STCabstract) != 0; | |
| 2320 } | |
| 174 | 2321 |
| 72 | 2322 override bool isCodeseg() |
| 0 | 2323 { |
|
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2324 return true; // functions are always in the code segment |
| 0 | 2325 } |
| 174 | 2326 |
| 72 | 2327 override bool isOverloadable() |
| 0 | 2328 { |
| 63 | 2329 return 1; // functions can be overloaded |
| 0 | 2330 } |
| 174 | 2331 |
| 0 | 2332 bool isPure() |
| 2333 { | |
| 2334 //printf("FuncDeclaration::isPure() '%s'\n", toChars()); | |
| 2335 assert(type.ty == TY.Tfunction); | |
| 2336 return (cast(TypeFunction)this.type).ispure; | |
| 2337 } | |
| 174 | 2338 |
|
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2339 int isSafe() |
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2340 { |
|
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2341 assert(type.ty == TY.Tfunction); |
|
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2342 return (cast(TypeFunction)this.type).trust == TRUST.TRUSTsafe; |
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2343 } |
|
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2344 |
|
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|
2345 int isTrusted() |
|
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2346 { |
|
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|
2347 assert(type.ty == TY.Tfunction); |
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2348 return (cast(TypeFunction)this.type).trust == TRUST.TRUSTtrusted; |
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|
2349 } |
| 174 | 2350 |
| 0 | 2351 bool isNested() |
| 2352 { | |
| 2353 //if (!toParent()) | |
| 2354 //printf("FuncDeclaration.isNested('%s') parent=%p\n", toChars(), parent); | |
| 2355 //printf("\ttoParent2() = '%s'\n", toParent2().toChars()); | |
| 2356 return ((storage_class & STC.STCstatic) == 0) && | |
| 2357 (toParent2().isFuncDeclaration() !is null); | |
| 2358 } | |
| 174 | 2359 |
| 72 | 2360 override bool needThis() |
| 0 | 2361 { |
| 2362 //printf("FuncDeclaration.needThis() '%s'\n", toChars()); | |
| 2363 bool needThis = isThis() !is null; | |
| 2364 | |
| 2365 //printf("\t%d\n", i); | |
| 2366 if (!needThis) { | |
| 2367 if (auto fa = isFuncAliasDeclaration()) { | |
| 2368 needThis = fa.funcalias.needThis(); | |
| 2369 } | |
| 2370 } | |
| 2371 | |
| 2372 return needThis; | |
| 2373 } | |
| 174 | 2374 |
| 0 | 2375 bool isVirtual() |
| 2376 { | |
| 2377 static if (false) { | |
| 2378 printf("FuncDeclaration.isVirtual(%s)\n", toChars()); | |
| 2379 printf("isMember:%p isStatic:%d private:%d ctor:%d !Dlinkage:%d\n", isMember(), isStatic(), protection == PROT.PROTprivate, isCtorDeclaration(), linkage != LINK.LINKd); | |
| 2380 printf("result is %d\n", | |
| 2381 isMember() && !(isStatic() || protection == PROT.PROTprivate || protection == PROT.PROTpackage) && toParent().isClassDeclaration()); | |
| 2382 } | |
| 179 | 2383 Dsymbol p = toParent(); |
| 2384 return isMember() && | |
| 2385 !(isStatic() || protection == PROT.PROTprivate || protection == PROT.PROTpackage) && | |
| 2386 p.isClassDeclaration() && | |
| 2387 !(p.isInterfaceDeclaration() && isFinal()); | |
| 0 | 2388 } |
| 174 | 2389 |
| 139 | 2390 override bool isFinal() |
| 0 | 2391 { |
| 2392 ClassDeclaration cd; | |
| 2393 static if (false) { | |
| 2394 printf("FuncDeclaration.isFinal(%s)\n", toChars()); | |
| 2395 printf("%p %d %d %d %d\n", isMember(), isStatic(), protection == PROT.PROTprivate, isCtorDeclaration(), linkage != LINK.LINKd); | |
| 2396 printf("result is %d\n", | |
| 2397 isMember() && !(isStatic() || protection == PROT.PROTprivate || protection == PROT.PROTpackage) && (cd = toParent().isClassDeclaration()) !is null && cd.storage_class & STC.STCfinal); | |
| 2398 } | |
| 2399 return isMember() && (Declaration.isFinal() || ((cd = toParent().isClassDeclaration()) !is null && cd.storage_class & STC.STCfinal)); | |
| 2400 } | |
| 174 | 2401 |
| 0 | 2402 bool addPreInvariant() |
| 2403 { | |
| 2404 AggregateDeclaration ad = isThis(); | |
| 2405 return (ad && | |
| 2406 //ad.isClassDeclaration() && | |
| 2407 global.params.useInvariants && | |
| 2408 (protection == PROT.PROTpublic || protection == PROT.PROTexport) && | |
| 2409 !naked && | |
| 2410 ident !is Id.cpctor); | |
| 2411 } | |
| 174 | 2412 |
| 0 | 2413 bool addPostInvariant() |
| 2414 { | |
| 2415 AggregateDeclaration ad = isThis(); | |
| 174 | 2416 return (ad && ad.inv && |
| 0 | 2417 //ad.isClassDeclaration() && |
| 2418 global.params.useInvariants && | |
| 2419 (protection == PROT.PROTpublic || protection == PROT.PROTexport) && | |
| 2420 !naked && | |
| 2421 ident !is Id.cpctor); | |
| 2422 } | |
| 174 | 2423 |
| 63 | 2424 /************************************* |
| 2425 * Attempt to interpret a function given the arguments. | |
| 2426 * Input: | |
| 2427 * istate state for calling function (null if none) | |
| 2428 * arguments function arguments | |
| 174 | 2429 * thisarg 'this', if a needThis() function, null if not. |
| 63 | 2430 * |
| 2431 * Return result expression if successful, null if not. | |
| 2432 */ | |
| 2433 Expression interpret(InterState istate, Expressions arguments, Expression thisarg = null) | |
| 0 | 2434 { |
| 63 | 2435 version (LOG) { |
| 2436 printf("\n********\nFuncDeclaration.interpret(istate = %p) %s\n", istate, toChars()); | |
| 2437 printf("cantInterpret = %d, semanticRun = %d\n", cantInterpret, semanticRun); | |
| 2438 } | |
| 2439 if (global.errors) | |
| 2440 return null; | |
| 107 | 2441 version(DMDV1) |
| 2442 { | |
| 63 | 2443 if (ident == Id.aaLen) |
| 2444 return interpret_aaLen(istate, arguments); | |
| 2445 else if (ident == Id.aaKeys) | |
| 2446 return interpret_aaKeys(istate, arguments); | |
| 2447 else if (ident == Id.aaValues) | |
| 2448 return interpret_aaValues(istate, arguments); | |
| 107 | 2449 } |
| 2450 else version(DMDV2) | |
| 2451 { | |
| 2452 if (thisarg && (!arguments || arguments.dim == 0)) | |
| 2453 { | |
| 2454 if (ident == Id.length) | |
| 2455 return interpret_length(istate, thisarg); | |
| 2456 else if (ident == Id.keys) | |
| 2457 return interpret_keys(istate, thisarg, this); | |
| 2458 else if (ident == Id.values) | |
| 2459 return interpret_values(istate, thisarg, this); | |
| 2460 } | |
| 2461 } | |
| 174 | 2462 |
| 179 | 2463 if (cantInterpret || semanticRun == PASSsemantic3) |
| 63 | 2464 return null; |
| 2465 | |
| 2466 if (!fbody) | |
| 174 | 2467 { |
| 63 | 2468 cantInterpret = 1; |
| 2469 return null; | |
| 2470 } | |
| 2471 | |
| 179 | 2472 if (semanticRun < PASSsemantic3 && scope_) |
| 63 | 2473 { |
| 2474 semantic3(scope_); | |
| 2475 if (global.errors) // if errors compiling this function | |
| 2476 return null; | |
| 2477 } | |
| 179 | 2478 if (semanticRun < PASSsemantic3done) |
| 63 | 2479 return null; |
| 2480 | |
| 2481 Type tb = type.toBasetype(); | |
| 2482 assert(tb.ty == Tfunction); | |
| 2483 TypeFunction tf = cast(TypeFunction)tb; | |
| 2484 Type tret = tf.next.toBasetype(); | |
| 135 | 2485 if (tf.varargs && arguments && parameters && arguments.dim != parameters.dim) |
| 174 | 2486 { |
| 63 | 2487 cantInterpret = 1; |
| 135 | 2488 error("C-style variadic functions are not yet implemented in CTFE"); |
| 63 | 2489 return null; |
| 2490 } | |
| 174 | 2491 |
| 63 | 2492 scope InterState istatex = new InterState(); |
| 2493 istatex.caller = istate; | |
| 2494 istatex.fd = this; | |
| 2495 istatex.localThis = thisarg; | |
| 2496 | |
| 2497 scope Expressions vsave = new Expressions(); // place to save previous parameter values | |
| 2498 size_t dim = 0; | |
| 2499 if (needThis() && !thisarg) | |
| 174 | 2500 { |
| 63 | 2501 cantInterpret = 1; |
| 2502 // error, no this. Prevent segfault. | |
| 2503 error("need 'this' to access member %s", toChars()); | |
| 2504 return null; | |
| 2505 } | |
| 2506 if (arguments) | |
| 2507 { | |
| 2508 dim = arguments.dim; | |
| 2509 assert(!dim || (parameters && (parameters.dim == dim))); | |
| 2510 vsave.setDim(dim); | |
| 2511 | |
| 2512 /* Evaluate all the arguments to the function, | |
| 2513 * store the results in eargs[] | |
| 2514 */ | |
| 2515 scope Expressions eargs = new Expressions(); | |
| 2516 eargs.setDim(dim); | |
| 2517 | |
| 2518 for (size_t i = 0; i < dim; i++) | |
| 174 | 2519 { |
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2520 Expression earg = arguments[i]; |
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2521 auto arg = Parameter.getNth(tf.parameters, i); |
| 63 | 2522 |
| 179 | 2523 if (arg.storageClass & (STCout | STCref | STClazy)) |
| 63 | 2524 { |
| 2525 } | |
| 2526 else | |
| 2527 { /* Value parameters | |
| 2528 */ | |
| 2529 Type ta = arg.type.toBasetype(); | |
| 2530 if (ta.ty == Tsarray && earg.op == TOKaddress) | |
| 2531 { | |
| 2532 /* Static arrays are passed by a simple pointer. | |
| 2533 * Skip past this to get at the actual arg. | |
| 2534 */ | |
| 2535 earg = (cast(AddrExp)earg).e1; | |
| 2536 } | |
| 2537 earg = earg.interpret(istate ? istate : istatex); | |
| 2538 if (earg is EXP_CANT_INTERPRET) | |
| 174 | 2539 { |
| 63 | 2540 cantInterpret = 1; |
| 2541 return null; | |
| 2542 } | |
| 2543 } | |
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2544 eargs[i] = earg; |
| 63 | 2545 } |
| 2546 | |
| 2547 for (size_t i = 0; i < dim; i++) | |
| 174 | 2548 { |
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2549 auto earg = eargs[i]; |
|
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2550 auto arg = Parameter.getNth(tf.parameters, i); |
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2551 auto v = cast(VarDeclaration)parameters[i]; |
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2552 vsave[i] = v.value; |
| 63 | 2553 version (LOG) { |
| 2554 printf("arg[%d] = %s\n", i, earg.toChars()); | |
| 2555 } | |
| 2556 if (arg.storageClass & (STCout | STCref) && earg.op==TOKvar) | |
| 2557 { | |
| 2558 /* Bind out or ref parameter to the corresponding | |
| 2559 * variable v2 | |
| 2560 */ | |
| 2561 if (!istate) | |
| 174 | 2562 { |
| 63 | 2563 cantInterpret = 1; |
| 2564 error("%s cannot be by passed by reference at compile time", earg.toChars()); | |
| 2565 return null; // can't bind to non-interpreted vars | |
| 174 | 2566 } |
| 63 | 2567 // We need to chase down all of the the passed parameters until |
| 2568 // we find something that isn't a TOKvar, then create a variable | |
| 2569 // containg that expression. | |
| 2570 VarDeclaration v2; | |
| 2571 while (1) | |
| 2572 { | |
| 2573 VarExp ve = cast(VarExp)earg; | |
| 2574 v2 = ve.var.isVarDeclaration(); | |
| 2575 if (!v2) | |
| 174 | 2576 { |
| 63 | 2577 cantInterpret = 1; |
| 2578 return null; | |
| 2579 } | |
| 2580 if (!v2.value || v2.value.op != TOKvar) | |
| 2581 break; | |
| 174 | 2582 if ((cast(VarExp)v2.value).var.isSymbolDeclaration()) |
| 2583 { | |
| 63 | 2584 // This can happen if v is a struct initialized to |
| 2585 // 0 using an __initZ SymbolDeclaration from | |
| 2586 // TypeStruct.defaultInit() | |
| 2587 break; // eg default-initialized variable | |
| 2588 } | |
| 2589 earg = v2.value; | |
| 2590 } | |
| 2591 | |
| 2592 v.value = new VarExp(earg.loc, v2); | |
| 2593 | |
| 2594 /* Don't restore the value of v2 upon function return | |
| 2595 */ | |
| 2596 assert(istate); | |
|
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2597 foreach(size_t j, Dsymbol s2; istate.vars)// (size_t j = 0; j < istate.vars.dim; j++) |
| 174 | 2598 { |
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2599 auto vd = cast(VarDeclaration)s2; |
| 63 | 2600 if (vd == v2) |
| 174 | 2601 { |
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2602 istate.vars[j] = null; |
| 63 | 2603 break; |
| 2604 } | |
| 2605 } | |
| 2606 } | |
| 2607 else | |
| 174 | 2608 { |
| 63 | 2609 // Value parameters and non-trivial references |
| 2610 v.value = earg; | |
| 2611 } | |
| 2612 version (LOG) { | |
| 2613 printf("interpreted arg[%d] = %s\n", i, earg.toChars()); | |
| 2614 } | |
| 2615 } | |
| 2616 } | |
| 2617 // Don't restore the value of 'this' upon function return | |
| 135 | 2618 if (needThis() && thisarg.op == TOKvar && istate) { |
| 63 | 2619 VarDeclaration thisvar = (cast(VarExp)thisarg).var.isVarDeclaration(); |
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2620 foreach (size_t i, Dsymbol s; istate.vars) |
| 174 | 2621 { |
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2622 auto v = cast(VarDeclaration)s; |
| 63 | 2623 if (v == thisvar) |
| 174 | 2624 { |
|
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|
2625 istate.vars[i] = null; |
| 63 | 2626 break; |
| 2627 } | |
| 2628 } | |
| 2629 } | |
| 2630 | |
| 2631 /* Save the values of the local variables used | |
| 2632 */ | |
| 135 | 2633 scope valueSaves = new Expressions(); |
| 63 | 2634 if (istate && !isNested()) |
| 2635 { | |
| 2636 //printf("saving local variables...\n"); | |
| 2637 valueSaves.setDim(istate.vars.dim); | |
|
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2638 foreach (size_t i, Dsymbol s3; istate.vars) |
| 174 | 2639 { |
|
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|
2640 if (auto v = cast(VarDeclaration)s3) |
| 63 | 2641 { |
| 2642 //printf("\tsaving [%d] %s = %s\n", i, v.toChars(), v.value ? v.value.toChars() : ""); | |
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|
2643 valueSaves[i] = v.value; |
| 63 | 2644 v.value = null; |
| 2645 } | |
| 2646 } | |
| 2647 } | |
| 2648 | |
| 2649 Expression e = null; | |
| 2650 while (1) | |
| 2651 { | |
| 2652 e = fbody.interpret(istatex); | |
| 2653 if (e is EXP_CANT_INTERPRET) | |
| 2654 { | |
| 2655 version (LOG) { | |
| 2656 printf("function body failed to interpret\n"); | |
| 2657 } | |
| 2658 e = null; | |
| 2659 } | |
| 2660 | |
| 2661 /* This is how we deal with a recursive statement AST | |
| 2662 * that has arbitrary goto statements in it. | |
| 2663 * Bubble up a 'result' which is the target of the goto | |
| 2664 * statement, then go recursively down the AST looking | |
| 2665 * for that statement, then execute starting there. | |
| 2666 */ | |
| 2667 if (e is EXP_GOTO_INTERPRET) | |
| 2668 { | |
| 2669 istatex.start = istatex.gotoTarget; // set starting statement | |
| 2670 istatex.gotoTarget = null; | |
| 2671 } | |
| 2672 else | |
| 2673 break; | |
| 2674 } | |
| 2675 /* Restore the parameter values | |
| 2676 */ | |
| 2677 for (size_t i = 0; i < dim; i++) | |
| 2678 { | |
|
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2679 auto v = cast(VarDeclaration)parameters[i]; |
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|
2680 v.value = vsave[i]; |
| 63 | 2681 } |
| 2682 | |
| 2683 if (istate && !isNested()) | |
| 2684 { | |
| 2685 /* Restore the variable values | |
| 2686 */ | |
| 2687 //printf("restoring local variables...\n"); | |
|
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2688 foreach (size_t i , Dsymbol s3; istate.vars) |
| 174 | 2689 { |
|
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|
2690 if (auto v = cast(VarDeclaration)s3) |
| 174 | 2691 { |
|
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|
2692 v.value = valueSaves[i]; |
| 63 | 2693 //printf("\trestoring [%d] %s = %s\n", i, v.toChars(), v.value ? v.value.toChars() : ""); |
| 2694 } | |
| 2695 } | |
| 2696 } | |
| 2697 return e; | |
| 0 | 2698 } |
| 174 | 2699 |
| 72 | 2700 override void inlineScan() |
| 0 | 2701 { |
| 2702 InlineScanState iss; | |
| 2703 | |
| 2704 version (LOG) { | |
| 2705 printf("FuncDeclaration.inlineScan('%s')\n", toChars()); | |
| 2706 } | |
| 2707 ///memset(&iss, 0, sizeof(iss)); | |
| 2708 iss.fd = this; | |
| 2709 if (fbody) | |
| 2710 { | |
| 2711 inlineNest++; | |
| 2712 fbody = fbody.inlineScan(&iss); | |
| 2713 inlineNest--; | |
| 2714 } | |
| 2715 } | |
| 174 | 2716 |
| 0 | 2717 int canInline(int hasthis, int hdrscan = 0) |
| 2718 { | |
| 2719 int cost; | |
| 2720 | |
| 2721 // #define CANINLINE_LOG 0 | |
| 2722 | |
| 2723 version (CANINLINE_LOG) { | |
| 2724 printf("FuncDeclaration.canInline(hasthis = %d, '%s')\n", hasthis, toChars()); | |
| 2725 } | |
| 2726 | |
| 2727 if (needThis() && !hasthis) | |
| 2728 return 0; | |
| 2729 | |
| 179 | 2730 if (inlineNest || (semanticRun < PASSsemantic3 && !hdrscan)) |
| 0 | 2731 { |
| 2732 version (CANINLINE_LOG) { | |
| 2733 printf("\t1: no, inlineNest = %d, semanticRun = %d\n", inlineNest, semanticRun); | |
| 2734 } | |
| 2735 return 0; | |
| 2736 } | |
| 2737 | |
| 2738 switch (inlineStatus) | |
| 2739 { | |
| 2740 case ILS.ILSyes: | |
| 2741 version (CANINLINE_LOG) { | |
| 2742 printf("\t1: yes %s\n", toChars()); | |
| 2743 } | |
| 2744 return 1; | |
| 2745 | |
| 2746 case ILS.ILSno: | |
| 2747 version (CANINLINE_LOG) { | |
| 2748 printf("\t1: no %s\n", toChars()); | |
| 2749 } | |
| 2750 return 0; | |
| 2751 | |
| 2752 case ILS.ILSuninitialized: | |
| 2753 break; | |
| 2754 | |
| 2755 default: | |
| 2756 assert(0); | |
| 2757 } | |
| 2758 | |
| 2759 if (type) | |
| 174 | 2760 { |
| 0 | 2761 assert(type.ty == Tfunction); |
| 2762 TypeFunction tf = cast(TypeFunction)type; | |
| 2763 if (tf.varargs == 1) // no variadic parameter lists | |
| 2764 goto Lno; | |
| 2765 | |
| 2766 /* Don't inline a function that returns non-void, but has | |
| 2767 * no return expression. | |
| 2768 */ | |
| 2769 if (tf.next && tf.next.ty != Tvoid && | |
| 2770 !(hasReturnExp & 1) && | |
| 2771 !hdrscan) | |
| 2772 goto Lno; | |
| 2773 } | |
| 2774 else | |
| 174 | 2775 { |
| 0 | 2776 CtorDeclaration ctor = isCtorDeclaration(); |
| 2777 if (ctor && ctor.varargs == 1) | |
| 2778 goto Lno; | |
| 2779 } | |
| 2780 | |
| 2781 if ( | |
| 2782 !fbody || | |
| 2783 !hdrscan && | |
| 2784 ( | |
| 2785 /// static if (false) { | |
| 2786 /// isCtorDeclaration() || // cannot because need to convert: | |
| 2787 /// // return; | |
| 2788 /// // to: | |
| 2789 /// // return this; | |
| 2790 /// } | |
| 2791 isSynchronized() || | |
| 2792 isImportedSymbol() || | |
| 2793 /// version (DMDV2) { | |
| 2794 closureVars.dim || // no nested references to this frame | |
| 2795 /// } else { | |
| 2796 /// nestedFrameRef || // no nested references to this frame | |
| 2797 /// } | |
| 2798 (isVirtual() && !isFinal()) | |
| 2799 )) | |
| 2800 { | |
| 2801 goto Lno; | |
| 2802 } | |
| 2803 | |
| 2804 /* If any parameters are Tsarray's (which are passed by reference) | |
| 2805 * or out parameters (also passed by reference), don't do inlining. | |
| 2806 */ | |
| 2807 if (parameters) | |
| 2808 { | |
|
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2809 foreach (Dsymbol s3; parameters) |
| 0 | 2810 { |
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|
2811 auto v = cast(VarDeclaration)s3; |
| 0 | 2812 if (v.isOut() || v.isRef() || v.type.toBasetype().ty == Tsarray) |
| 2813 goto Lno; | |
| 2814 } | |
| 2815 } | |
| 2816 | |
| 2817 InlineCostState ics; | |
| 2818 ///memset(&ics, 0, sizeof(ics)); | |
| 2819 ics.hasthis = hasthis; | |
| 2820 ics.fd = this; | |
| 2821 ics.hdrscan = hdrscan; | |
| 2822 cost = fbody.inlineCost(&ics); | |
| 2823 version (CANINLINE_LOG) { | |
| 2824 printf("cost = %d\n", cost); | |
| 2825 } | |
| 2826 if (cost >= COST_MAX) | |
| 2827 goto Lno; | |
| 2828 | |
| 2829 if (!hdrscan) // Don't scan recursively for header content scan | |
| 2830 inlineScan(); | |
| 2831 | |
| 2832 Lyes: | |
| 2833 if (!hdrscan) // Don't modify inlineStatus for header content scan | |
| 2834 inlineStatus = ILS.ILSyes; | |
| 2835 version (CANINLINE_LOG) { | |
| 2836 printf("\t2: yes %s\n", toChars()); | |
| 2837 } | |
| 2838 return 1; | |
| 2839 | |
| 2840 Lno: | |
| 2841 if (!hdrscan) // Don't modify inlineStatus for header content scan | |
| 2842 inlineStatus = ILS.ILSno; | |
| 2843 version (CANINLINE_LOG) { | |
| 2844 printf("\t2: no %s\n", toChars()); | |
| 2845 } | |
| 2846 return 0; | |
| 2847 } | |
| 2848 | |
|
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|
2849 Expression doInline(InlineScanState* iss, Expression ethis, Expressions arguments) |
| 0 | 2850 { |
| 2851 InlineDoState ids = new InlineDoState(); | |
| 2852 DeclarationExp de; | |
| 2853 Expression e = null; | |
| 2854 | |
| 2855 version (LOG) { | |
| 2856 printf("FuncDeclaration.doInline('%s')\n", toChars()); | |
| 2857 } | |
| 2858 | |
| 2859 ///memset(&ids, 0, sizeof(ids)); | |
| 2860 ids.parent = iss.fd; | |
| 2861 | |
| 2862 // Set up vthis | |
| 2863 if (ethis) | |
| 2864 { | |
| 2865 VarDeclaration vthis; | |
| 2866 ExpInitializer ei; | |
| 2867 VarExp ve; | |
| 2868 | |
| 2869 version (STRUCTTHISREF) { | |
| 2870 if (ethis.type.ty == Tpointer) | |
| 174 | 2871 { |
| 0 | 2872 Type t = ethis.type.nextOf(); |
| 2873 ethis = new PtrExp(ethis.loc, ethis); | |
| 2874 ethis.type = t; | |
| 2875 } | |
| 2876 ei = new ExpInitializer(ethis.loc, ethis); | |
| 2877 | |
| 2878 vthis = new VarDeclaration(ethis.loc, ethis.type, Id.This, ei); | |
| 2879 if (ethis.type.ty != Tclass) | |
| 2880 vthis.storage_class = STCref; | |
| 2881 else | |
| 2882 vthis.storage_class = STCin; | |
| 2883 } else { | |
| 2884 if (ethis.type.ty != Tclass && ethis.type.ty != Tpointer) | |
| 2885 { | |
| 2886 ethis = ethis.addressOf(null); | |
| 2887 } | |
| 2888 | |
| 2889 ei = new ExpInitializer(ethis.loc, ethis); | |
| 2890 | |
| 2891 vthis = new VarDeclaration(ethis.loc, ethis.type, Id.This, ei); | |
| 2892 vthis.storage_class = STCin; | |
| 2893 } | |
| 2894 vthis.linkage = LINKd; | |
| 2895 vthis.parent = iss.fd; | |
| 2896 | |
| 2897 ve = new VarExp(vthis.loc, vthis); | |
| 2898 ve.type = vthis.type; | |
| 2899 | |
| 2900 ei.exp = new AssignExp(vthis.loc, ve, ethis); | |
| 2901 ei.exp.type = ve.type; | |
| 2902 version (STRUCTTHISREF) { | |
| 2903 if (ethis.type.ty != Tclass) | |
| 174 | 2904 { |
| 0 | 2905 /* This is a reference initialization, not a simple assignment. |
| 2906 */ | |
| 2907 ei.exp.op = TOKconstruct; | |
| 2908 } | |
| 2909 } | |
| 2910 | |
| 2911 ids.vthis = vthis; | |
| 2912 } | |
| 2913 | |
| 2914 // Set up parameters | |
| 2915 if (ethis) | |
| 2916 { | |
| 2917 e = new DeclarationExp(Loc(0), ids.vthis); | |
| 2918 e.type = Type.tvoid; | |
| 2919 } | |
| 2920 | |
| 2921 if (arguments && arguments.dim) | |
| 2922 { | |
| 2923 assert(parameters.dim == arguments.dim); | |
| 2924 | |
| 2925 for (int i = 0; i < arguments.dim; i++) | |
| 2926 { | |
|
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|
2927 auto vfrom = cast(VarDeclaration)parameters[i]; |
| 0 | 2928 VarDeclaration vto; |
|
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|
2929 Expression arg = arguments[i]; |
| 0 | 2930 ExpInitializer ei; |
| 2931 VarExp ve; | |
| 2932 | |
| 2933 ei = new ExpInitializer(arg.loc, arg); | |
| 2934 | |
| 2935 vto = new VarDeclaration(vfrom.loc, vfrom.type, vfrom.ident, ei); | |
| 2936 vto.storage_class |= vfrom.storage_class & (STCin | STCout | STClazy | STCref); | |
| 2937 vto.linkage = vfrom.linkage; | |
| 2938 vto.parent = iss.fd; | |
| 2939 //printf("vto = '%s', vto.storage_class = x%x\n", vto.toChars(), vto.storage_class); | |
| 2940 //printf("vto.parent = '%s'\n", iss.fd.toChars()); | |
| 2941 | |
| 2942 ve = new VarExp(vto.loc, vto); | |
| 2943 //ve.type = vto.type; | |
| 2944 ve.type = arg.type; | |
| 2945 | |
| 2946 ei.exp = new AssignExp(vto.loc, ve, arg); | |
| 2947 ei.exp.type = ve.type; | |
| 2948 //ve.type.print(); | |
| 2949 //arg.type.print(); | |
| 2950 //ei.exp.print(); | |
| 2951 | |
| 2952 ids.from.push(cast(void*)vfrom); | |
| 2953 ids.to.push(cast(void*)vto); | |
| 2954 | |
| 2955 de = new DeclarationExp(Loc(0), vto); | |
| 2956 de.type = Type.tvoid; | |
| 2957 | |
| 2958 e = Expression.combine(e, de); | |
| 2959 } | |
| 2960 } | |
| 2961 | |
| 2962 inlineNest++; | |
| 2963 Expression eb = fbody.doInline(ids); | |
| 2964 inlineNest--; | |
| 2965 //eb.type.print(); | |
| 2966 //eb.print(); | |
| 2967 //eb.dump(0); | |
| 2968 return Expression.combine(e, eb); | |
| 2969 } | |
| 2970 | |
| 72 | 2971 override string kind() |
| 0 | 2972 { |
| 2973 return "function"; | |
| 2974 } | |
| 2975 | |
| 72 | 2976 override void toDocBuffer(OutBuffer buf) |
| 0 | 2977 { |
| 2978 assert(false); | |
| 2979 } | |
| 174 | 2980 |
| 156 | 2981 FuncDeclaration isUnique() |
| 174 | 2982 { |
| 158 | 2983 Unique unique; |
| 2984 overloadApply(this, unique); | |
| 174 | 2985 |
| 158 | 2986 return unique.f; |
| 0 | 2987 } |
| 174 | 2988 |
| 0 | 2989 /******************************* |
| 2990 * Look at all the variables in this function that are referenced | |
| 2991 * by nested functions, and determine if a closure needs to be | |
| 2992 * created for them. | |
| 2993 */ | |
| 2994 bool needsClosure() | |
| 2995 { | |
| 2996 /* Need a closure for all the closureVars[] if any of the | |
| 2997 * closureVars[] are accessed by a | |
| 2998 * function that escapes the scope of this function. | |
| 2999 * We take the conservative approach and decide that any function that: | |
| 3000 * 1) is a virtual function | |
| 3001 * 2) has its address taken | |
| 3002 * 3) has a parent that escapes | |
| 3003 * | |
| 3004 * Note that since a non-virtual function can be called by | |
| 3005 * a virtual one, if that non-virtual function accesses a closure | |
| 3006 * var, the closure still has to be taken. Hence, we check for isThis() | |
| 3007 * instead of isVirtual(). (thanks to David Friedman) | |
| 3008 */ | |
| 3009 | |
| 3010 //printf("FuncDeclaration.needsClosure() %s\n", toChars()); | |
|
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|
3011 foreach (Dsymbol s3; closureVars) |
| 174 | 3012 { |
|
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diff
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|
3013 auto v = cast(VarDeclaration)s3; |
| 0 | 3014 assert(v.isVarDeclaration()); |
| 3015 //printf("\tv = %s\n", v.toChars()); | |
| 3016 | |
|
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diff
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|
3017 foreach(FuncDeclaration f; v.nestedrefs) |
|
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diff
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|
3018 { |
| 0 | 3019 assert(f != this); |
| 3020 | |
| 3021 //printf("\t\tf = %s, %d, %p, %d\n", f.toChars(), f.isVirtual(), f.isThis(), f.tookAddressOf); | |
| 3022 if (f.isThis() || f.tookAddressOf) | |
| 3023 goto Lyes; // assume f escapes this function's scope | |
| 3024 | |
| 3025 // Look to see if any parents of f that are below this escape | |
| 3026 for (Dsymbol s = f.parent; s && s !is this; s = s.parent) | |
| 3027 { | |
| 3028 f = s.isFuncDeclaration(); | |
| 3029 if (f && (f.isThis() || f.tookAddressOf)) { | |
| 3030 goto Lyes; | |
| 3031 } | |
| 3032 } | |
| 3033 } | |
| 3034 } | |
| 3035 return false; | |
| 3036 | |
| 3037 Lyes: | |
| 3038 //printf("\tneeds closure\n"); | |
| 3039 return true; | |
| 3040 } | |
| 174 | 3041 |
| 73 | 3042 /**************************************************** |
| 3043 * Merge into this function the 'in' contracts of all it overrides. | |
| 3044 * 'in's are OR'd together, i.e. only one of them needs to pass. | |
| 3045 */ | |
| 3046 | |
| 3047 Statement mergeFrequire(Statement sf) | |
| 3048 { | |
| 3049 /* Implementing this is done by having the overriding function call | |
| 3050 * nested functions (the fdrequire functions) nested inside the overridden | |
| 3051 * function. This requires that the stack layout of the calling function's | |
| 3052 * parameters and 'this' pointer be in the same place (as the nested | |
| 3053 * function refers to them). | |
| 3054 * This is easy for the parameters, as they are all on the stack in the same | |
| 3055 * place by definition, since it's an overriding function. The problem is | |
| 3056 * getting the 'this' pointer in the same place, since it is a local variable. | |
| 3057 * We did some hacks in the code generator to make this happen: | |
| 3058 * 1. always generate exception handler frame, or at least leave space for it | |
| 3059 * in the frame (Windows 32 SEH only) | |
| 3060 * 2. always generate an EBP style frame | |
| 3061 * 3. since 'this' is passed in a register that is subsequently copied into | |
| 3062 * a stack local, allocate that local immediately following the exception | |
| 3063 * handler block, so it is always at the same offset from EBP. | |
| 3064 */ | |
|
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|
3065 foreach(FuncDeclaration fdv; foverrides) //(int i = 0; i < foverrides.dim; i++) |
| 73 | 3066 { |
| 3067 sf = fdv.mergeFrequire(sf); | |
| 98 | 3068 if (fdv.fdrequire) |
| 73 | 3069 { |
| 3070 //printf("fdv.frequire: %s\n", fdv.frequire.toChars()); | |
| 3071 /* Make the call: | |
| 3072 * try { __require(); } | |
| 3073 * catch { frequire; } | |
| 3074 */ | |
| 3075 Expression eresult = null; | |
| 3076 Expression e = new CallExp(loc, new VarExp(loc, fdv.fdrequire, 0), eresult); | |
| 3077 Statement s2 = new ExpStatement(loc, e); | |
| 3078 | |
| 3079 if (sf) | |
| 174 | 3080 { |
| 73 | 3081 Catch c = new Catch(loc, null, null, sf); |
| 3082 Array catches = new Array(); | |
| 3083 catches.push(cast(void*)c); | |
| 3084 sf = new TryCatchStatement(loc, s2, catches); | |
| 3085 } | |
| 3086 else | |
| 3087 sf = s2; | |
| 3088 } | |
| 3089 } | |
| 3090 return sf; | |
| 3091 } | |
| 3092 | |
| 3093 /**************************************************** | |
| 3094 * Merge into this function the 'out' contracts of all it overrides. | |
| 3095 * 'out's are AND'd together, i.e. all of them need to pass. | |
| 3096 */ | |
| 3097 | |
| 3098 Statement mergeFensure(Statement sf) | |
| 3099 { | |
| 3100 /* Same comments as for mergeFrequire(), except that we take care | |
| 3101 * of generating a consistent reference to the 'result' local by | |
| 3102 * explicitly passing 'result' to the nested function as a reference | |
| 3103 * argument. | |
| 3104 * This won't work for the 'this' parameter as it would require changing | |
| 3105 * the semantic code for the nested function so that it looks on the parameter | |
| 3106 * list for the 'this' pointer, something that would need an unknown amount | |
| 3107 * of tweaking of various parts of the compiler that I'd rather leave alone. | |
| 3108 */ | |
|
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diff
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|
3109 foreach (FuncDeclaration fdv; foverrides) |
| 73 | 3110 { |
| 3111 sf = fdv.mergeFensure(sf); | |
| 98 | 3112 if (fdv.fdensure) |
| 73 | 3113 { |
| 3114 //printf("fdv.fensure: %s\n", fdv.fensure.toChars()); | |
| 3115 // Make the call: __ensure(result) | |
| 3116 Expression eresult = null; | |
| 3117 if (outId) | |
| 3118 eresult = new IdentifierExp(loc, outId); | |
| 3119 Expression e = new CallExp(loc, new VarExp(loc, fdv.fdensure, 0), eresult); | |
| 3120 Statement s2 = new ExpStatement(loc, e); | |
| 3121 | |
| 3122 if (sf) | |
| 3123 { | |
| 3124 sf = new CompoundStatement(fensure.loc, s2, sf); | |
| 3125 } | |
| 3126 else | |
| 3127 sf = s2; | |
| 3128 } | |
| 3129 } | |
| 3130 return sf; | |
| 3131 } | |
| 174 | 3132 |
| 0 | 3133 static FuncDeclaration genCfunc(Type treturn, string name) |
| 3134 { | |
| 3135 return genCfunc(treturn, Lexer.idPool(name)); | |
| 3136 } | |
| 174 | 3137 |
| 0 | 3138 /********************************** |
| 3139 * Generate a FuncDeclaration for a runtime library function. | |
| 3140 */ | |
| 3141 static FuncDeclaration genCfunc(Type treturn, Identifier id) | |
| 3142 { | |
| 3143 FuncDeclaration fd; | |
| 3144 TypeFunction tf; | |
| 3145 Dsymbol s; | |
| 3146 | |
| 3147 //printf("genCfunc(name = '%s')\n", id.toChars()); | |
| 3148 //printf("treturn\n\t"); treturn.print(); | |
| 3149 | |
| 3150 // See if already in table | |
|
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158
diff
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|
3151 s = global.st.lookup(id); |
| 0 | 3152 if (s) |
| 3153 { | |
|
167
50a6d232176c
rewrite GlobalExpressions, moved DsymbolTable to Global, some cleanup
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parents:
158
diff
changeset
|
3154 debug fd = s.isFuncDeclaration(); |
|
50a6d232176c
rewrite GlobalExpressions, moved DsymbolTable to Global, some cleanup
korDen
parents:
158
diff
changeset
|
3155 debug assert(fd); |
|
50a6d232176c
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korDen
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158
diff
changeset
|
3156 debug assert(fd.type.nextOf().equals(treturn)); |
| 0 | 3157 } |
| 3158 else | |
| 3159 { | |
| 3160 tf = new TypeFunction(null, treturn, 0, LINK.LINKc); | |
| 3161 fd = new FuncDeclaration(Loc(0), Loc(0), id, STCstatic, tf); | |
| 3162 fd.protection = PROT.PROTpublic; | |
| 3163 fd.linkage = LINK.LINKc; | |
| 3164 | |
|
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158
diff
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|
3165 global.st.insert(fd); |
| 0 | 3166 } |
| 3167 return fd; | |
| 3168 } | |
| 174 | 3169 |
| 72 | 3170 override Symbol* toSymbol() |
| 0 | 3171 { |
| 3172 if (!csym) | |
| 3173 { | |
| 3174 Symbol* s; | |
| 3175 TYPE* t; | |
| 3176 string id; | |
| 3177 | |
| 3178 static if (false) { | |
| 3179 id = ident.toChars(); | |
| 3180 } else { | |
| 3181 id = mangle(); | |
| 3182 } | |
| 3183 //writef("FuncDeclaration.toSymbol(%s %s)\n", kind(), toChars()); | |
| 3184 //writef("\tid = '%s'\n", id); | |
| 3185 //writef("\ttype = %s\n", type.toChars()); | |
| 3186 s = symbol_calloc(toStringz(id)); | |
| 3187 slist_add(s); | |
| 3188 | |
| 3189 { | |
| 3190 s.prettyIdent = toStringz(toPrettyChars()); | |
| 3191 s.Sclass = SC.SCglobal; | |
| 3192 symbol_func(s); | |
| 3193 func_t* f = s.Sfunc; | |
| 3194 if (isVirtual()) | |
| 3195 f.Fflags |= F.Fvirtual; | |
| 3196 else if (isMember2()) | |
| 3197 f.Fflags |= F.Fstatic; | |
| 3198 f.Fstartline.Slinnum = loc.linnum; | |
| 3199 f.Fstartline.Sfilename = cast(char*)toStringz(loc.filename); | |
| 3200 if (endloc.linnum) | |
| 174 | 3201 { |
| 0 | 3202 f.Fendline.Slinnum = endloc.linnum; |
| 3203 f.Fendline.Sfilename = cast(char*)toStringz(endloc.filename); | |
| 3204 } | |
| 3205 else | |
| 174 | 3206 { |
| 0 | 3207 f.Fendline.Slinnum = loc.linnum; |
| 3208 f.Fendline.Sfilename = cast(char*)toStringz(loc.filename); | |
| 3209 } | |
| 3210 t = type.toCtype(); | |
| 3211 } | |
| 3212 | |
| 3213 mangle_t msave = t.Tmangle; | |
| 3214 if (isMain()) | |
| 3215 { | |
| 3216 t.Tty = TYM.TYnfunc; | |
| 3217 t.Tmangle = mTYman.mTYman_c; | |
| 3218 } | |
| 3219 else | |
| 3220 { | |
| 3221 switch (linkage) | |
| 3222 { | |
| 3223 case LINK.LINKwindows: | |
| 3224 t.Tmangle = mTYman.mTYman_std; | |
| 3225 break; | |
| 3226 | |
| 3227 case LINK.LINKpascal: | |
| 3228 t.Tty = TYM.TYnpfunc; | |
| 3229 t.Tmangle = mTYman.mTYman_pas; | |
| 3230 break; | |
| 3231 | |
| 3232 case LINK.LINKc: | |
| 3233 t.Tmangle = mTYman.mTYman_c; | |
| 3234 break; | |
| 3235 | |
| 3236 case LINK.LINKd: | |
| 3237 t.Tmangle = mTYman.mTYman_d; | |
| 3238 break; | |
| 3239 | |
| 3240 case LINK.LINKcpp: | |
| 3241 { t.Tmangle = mTYman.mTYman_cpp; | |
| 3242 version (TARGET_WINDOS) { | |
| 3243 if (isThis()) | |
| 3244 t.Tty = TYM.TYmfunc; | |
| 3245 } | |
| 3246 s.Sflags |= SFL.SFLpublic; | |
| 3247 Dsymbol parent = toParent(); | |
| 3248 ClassDeclaration cd = parent.isClassDeclaration(); | |
| 3249 if (cd) | |
| 3250 { | |
| 3251 .type* tt = cd.type.toCtype(); | |
| 3252 s.Sscope = tt.Tnext.Ttag; | |
| 3253 } | |
| 3254 break; | |
| 3255 } | |
| 3256 default: | |
| 3257 writef("linkage = %d\n", linkage); | |
| 3258 assert(0); | |
| 3259 } | |
| 3260 } | |
| 3261 if (msave) | |
| 3262 assert(msave == t.Tmangle); | |
| 3263 //printf("Tty = %x, mangle = x%x\n", t.Tty, t.Tmangle); | |
| 3264 t.Tcount++; | |
| 3265 s.Stype = t; | |
| 3266 //s.Sfielddef = this; | |
| 3267 | |
| 3268 csym = s; | |
| 3269 } | |
| 3270 return csym; | |
| 3271 } | |
| 174 | 3272 |
| 0 | 3273 Symbol* toThunkSymbol(int offset) // thunk version |
| 3274 { | |
| 3275 Symbol *sthunk; | |
| 3276 | |
| 3277 toSymbol(); | |
| 3278 | |
| 3279 static if (false) { | |
| 3280 char *id; | |
| 3281 char *n; | |
| 3282 type *t; | |
| 3283 | |
| 3284 n = sym.Sident; | |
| 72 | 3285 version (Bug4054) { |
| 63 | 3286 id = cast(char*) GC.malloc(8 + 5 + strlen(n) + 1); |
| 72 | 3287 } else { |
| 63 | 3288 id = cast(char*) alloca(8 + 5 + strlen(n) + 1); |
| 3289 } | |
| 0 | 3290 sprintf(id, "_thunk%d__%s", offset, n); |
| 3291 s = symbol_calloc(id); | |
| 3292 slist_add(s); | |
| 3293 s.Stype = csym.Stype; | |
| 3294 s.Stype.Tcount++; | |
| 3295 } | |
| 3296 sthunk = symbol_generate(SCstatic, csym.Stype); | |
| 3297 sthunk.Sflags |= SFLimplem; | |
| 3298 cod3_thunk(sthunk, csym, 0, TYnptr, -offset, -1, 0); | |
| 3299 return sthunk; | |
| 3300 } | |
| 174 | 3301 |
| 72 | 3302 override void toObjFile(int multiobj) // compile to .obj file |
| 0 | 3303 { |
| 3304 Symbol* s; | |
| 3305 func_t* f; | |
| 3306 Symbol* senter; | |
| 3307 Symbol* sexit; | |
| 174 | 3308 |
| 0 | 3309 FuncDeclaration func = this; |
| 3310 ClassDeclaration cd = func.parent.isClassDeclaration(); | |
| 3311 int reverse; | |
| 89 | 3312 |
| 0 | 3313 int has_arguments; |
| 3314 | |
| 3315 //printf("FuncDeclaration.toObjFile(%p, %s.%s)\n", func, parent.toChars(), func.toChars()); | |
| 98 | 3316 static if (false) |
| 3317 { | |
| 0 | 3318 //printf("line = %d\n",func.getWhere() / LINEINC); |
| 3319 EEcontext ee = env.getEEcontext(); | |
| 3320 if (ee.EEcompile == 2) | |
| 3321 { | |
| 3322 if (ee.EElinnum < (func.getWhere() / LINEINC) || | |
| 3323 ee.EElinnum > (func.endwhere / LINEINC) | |
| 3324 ) | |
| 3325 return; // don't compile this function | |
| 3326 ee.EEfunc = func.toSymbol(); | |
| 3327 } | |
| 3328 } | |
| 3329 | |
| 3330 if (multiobj && !isStaticDtorDeclaration() && !isStaticCtorDeclaration()) | |
| 174 | 3331 { |
| 0 | 3332 obj_append(this); |
| 3333 return; | |
| 3334 } | |
| 3335 | |
| 179 | 3336 if (semanticRun >= PASSobj) // if toObjFile() already run |
| 0 | 3337 return; |
| 179 | 3338 semanticRun = PASSobj; |
| 0 | 3339 |
| 3340 if (!func.fbody) | |
| 3341 { | |
| 3342 return; | |
| 3343 } | |
| 3344 | |
| 3345 if (func.isUnitTestDeclaration() && !global.params.useUnitTests) | |
| 3346 return; | |
| 3347 | |
| 3348 if (global.params.verbose) | |
| 3349 writef("function %s\n",func.toChars()); | |
| 3350 | |
| 3351 s = func.toSymbol(); | |
| 3352 f = s.Sfunc; | |
| 174 | 3353 |
| 98 | 3354 version (TARGET_WINDOS) |
| 3355 { | |
| 73 | 3356 /* This is done so that the 'this' pointer on the stack is the same |
| 3357 * distance away from the function parameters, so that an overriding | |
| 3358 * function can call the nested fdensure or fdrequire of its overridden function | |
| 3359 * and the stack offsets are the same. | |
| 3360 */ | |
| 3361 if (isVirtual() && (fensure || frequire)) | |
| 3362 f.Fflags3 |= F3.Ffakeeh; | |
| 3363 } | |
| 0 | 3364 |
| 3365 version (TARGET_OSX) { | |
| 3366 s.Sclass = SC.SCcomdat; | |
| 3367 } else { | |
| 3368 s.Sclass = SC.SCglobal; | |
| 3369 } | |
| 3370 | |
| 3371 for (Dsymbol p = parent; p; p = p.parent) | |
| 3372 { | |
| 3373 if (p.isTemplateInstance()) | |
| 3374 { | |
| 3375 s.Sclass = SC.SCcomdat; | |
| 3376 break; | |
| 3377 } | |
| 3378 } | |
| 3379 | |
| 3380 if (isNested()) | |
| 3381 { | |
| 3382 // if (!(config.flags3 & CFG3pic)) | |
| 3383 // s.Sclass = SCstatic; | |
| 3384 f.Fflags3 |= F3.Fnested; | |
| 3385 } | |
| 3386 else | |
| 3387 { | |
| 3388 const(char)* libname = (global.params.symdebug) ? global.params.debuglibname : global.params.defaultlibname; | |
| 3389 | |
| 3390 // Pull in RTL startup code | |
| 3391 if (func.isMain()) | |
| 179 | 3392 { |
| 3393 objextdef("_main"); | |
|
22
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parents:
17
diff
changeset
|
3394 version (POSIX) { ///TARGET_LINUX || TARGET_OSX || TARGET_FREEBSD || TARGET_SOLARIS |
| 0 | 3395 obj_ehsections(); // initialize exception handling sections |
| 179 | 3396 } |
| 3397 version (TARGET_WINDOS) { | |
| 0 | 3398 objextdef("__acrtused_con"); |
| 3399 } | |
| 3400 obj_includelib(libname); | |
| 3401 s.Sclass = SC.SCglobal; | |
| 3402 } | |
| 3403 else if (strcmp(s.Sident.ptr, "main".ptr) == 0 && linkage == LINK.LINKc) | |
| 179 | 3404 { |
| 3405 version (TARGET_WINDOS) { | |
| 3406 objextdef("__acrtused_con"); // bring in C startup code | |
| 3407 obj_includelib("snn.lib"); // bring in C runtime library | |
| 3408 } | |
| 3409 s.Sclass = SCglobal; | |
| 3410 } | |
| 0 | 3411 else if (func.isWinMain()) |
| 3412 { | |
| 3413 objextdef("__acrtused"); | |
| 3414 obj_includelib(libname); | |
| 3415 s.Sclass = SC.SCglobal; | |
| 3416 } | |
| 3417 | |
| 3418 // Pull in RTL startup code | |
| 3419 else if (func.isDllMain()) | |
| 3420 { | |
| 3421 objextdef("__acrtused_dll"); | |
| 3422 obj_includelib(libname); | |
| 3423 s.Sclass = SC.SCglobal; | |
| 3424 } | |
| 3425 } | |
| 3426 | |
| 3427 cstate.CSpsymtab = &f.Flocsym; | |
| 3428 | |
| 3429 // Find module m for this function | |
| 3430 Module m = null; | |
| 3431 for (Dsymbol p = parent; p; p = p.parent) | |
| 3432 { | |
| 3433 m = p.isModule(); | |
| 3434 if (m) | |
| 3435 break; | |
| 3436 } | |
| 3437 | |
| 3438 IRState irs = IRState(m, func); | |
| 3439 Array deferToObj = new Array(); // write these to OBJ file later | |
| 3440 irs.deferToObj = deferToObj; | |
| 3441 | |
| 3442 TypeFunction tf; | |
| 3443 RET retmethod; | |
| 3444 Symbol* shidden = null; | |
| 3445 Symbol* sthis = null; | |
| 3446 tym_t tyf; | |
| 3447 | |
| 3448 tyf = tybasic(s.Stype.Tty); | |
| 3449 //printf("linkage = %d, tyf = x%x\n", linkage, tyf); | |
| 3450 reverse = tyrevfunc(s.Stype.Tty); | |
| 3451 | |
| 3452 assert(func.type.ty == TY.Tfunction); | |
| 3453 tf = cast(TypeFunction)(func.type); | |
| 3454 has_arguments = (tf.linkage == LINK.LINKd) && (tf.varargs == 1); | |
| 3455 retmethod = tf.retStyle(); | |
| 3456 if (retmethod == RET.RETstack) | |
| 3457 { | |
| 3458 // If function returns a struct, put a pointer to that | |
| 3459 // as the first argument | |
| 3460 .type* thidden = tf.next.pointerTo().toCtype(); | |
| 3461 char hiddenparam[5+4+1]; | |
| 176 | 3462 sprintf(hiddenparam.ptr, "__HID%d".ptr, ++global.hiddenparami); |
| 0 | 3463 shidden = symbol_name(hiddenparam.ptr, SC.SCparameter, thidden); |
| 3464 shidden.Sflags |= SFL.SFLtrue | SFL.SFLfree; | |
| 174 | 3465 |
| 0 | 3466 version (DMDV1) { |
| 3467 bool nestedref = func.nrvo_can && func.nrvo_var && func.nrvo_var.nestedref; | |
| 3468 } else { | |
| 3469 bool nestedref = func.nrvo_can && func.nrvo_var && (func.nrvo_var.nestedrefs.dim != 0); | |
| 3470 } | |
| 3471 if (nestedref) { | |
| 3472 type_setcv(&shidden.Stype, shidden.Stype.Tty | mTY.mTYvolatile); | |
| 3473 } | |
| 3474 | |
| 3475 irs.shidden = shidden; | |
| 3476 this.shidden = shidden; | |
| 3477 } | |
| 3478 | |
| 3479 if (vthis) | |
| 3480 { | |
| 3481 assert(!vthis.csym); | |
| 3482 sthis = vthis.toSymbol(); | |
| 3483 irs.sthis = sthis; | |
| 3484 if (!(f.Fflags3 & F3.Fnested)) | |
| 3485 f.Fflags3 |= F3.Fmember; | |
| 3486 } | |
| 3487 | |
| 3488 Symbol** params; | |
| 3489 uint pi; | |
| 3490 | |
| 3491 // Estimate number of parameters, pi | |
| 3492 pi = (v_arguments !is null); | |
| 3493 if (parameters) | |
| 3494 pi += parameters.dim; | |
| 3495 | |
| 3496 // Allow extra 2 for sthis and shidden | |
| 174 | 3497 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
|
3498 params = cast(Symbol**)GC.malloc((pi + 2) * (Symbol*).sizeof); |
| 174 | 3499 else |
| 0 | 3500 params = cast(Symbol**)alloca((pi + 2) * (Symbol*).sizeof); |
| 3501 | |
| 3502 // Get the actual number of parameters, pi, and fill in the params[] | |
| 3503 pi = 0; | |
| 3504 if (v_arguments) | |
| 3505 { | |
| 3506 params[pi] = v_arguments.toSymbol(); | |
| 3507 pi += 1; | |
| 3508 } | |
| 3509 if (parameters) | |
| 3510 { | |
| 89 | 3511 size_t i = 0; |
| 3512 for ( ; i < parameters.dim; ++i) | |
| 174 | 3513 { |
| 89 | 3514 auto v = cast(VarDeclaration)parameters[i]; |
| 98 | 3515 |
| 0 | 3516 if (v.csym) |
| 98 | 3517 { |
| 3518 error("compiler error, parameter '%s', bugzilla 2962?", v.toChars()); | |
| 3519 assert(false); | |
| 3520 } | |
| 0 | 3521 params[pi + i] = v.toSymbol(); |
| 3522 } | |
| 3523 pi += i; | |
| 3524 } | |
| 3525 | |
| 3526 if (reverse) | |
| 174 | 3527 { |
| 0 | 3528 // Reverse params[] entries |
| 89 | 3529 for (size_t i = 0; i < pi/2; i++) |
| 174 | 3530 { |
| 0 | 3531 Symbol* sptmp = params[i]; |
| 3532 params[i] = params[pi - 1 - i]; | |
| 3533 params[pi - 1 - i] = sptmp; | |
| 3534 } | |
| 3535 } | |
| 3536 | |
| 3537 if (shidden) | |
| 3538 { | |
| 3539 static if (false) { | |
| 3540 // shidden becomes last parameter | |
| 3541 params[pi] = shidden; | |
| 3542 } else { | |
| 3543 // shidden becomes first parameter | |
| 3544 memmove(params + 1, params, pi * (*params).sizeof); | |
| 3545 params[0] = shidden; | |
| 3546 } | |
| 3547 pi++; | |
| 3548 } | |
| 3549 | |
| 3550 | |
| 3551 if (sthis) | |
| 3552 { | |
| 3553 static if (false) { | |
| 3554 // sthis becomes last parameter | |
| 3555 params[pi] = sthis; | |
| 3556 } else { | |
| 3557 // sthis becomes first parameter | |
| 3558 memmove(params + 1, params, pi * (*params).sizeof); | |
| 3559 params[0] = sthis; | |
| 3560 } | |
| 3561 pi++; | |
| 3562 } | |
| 3563 | |
| 3564 if ((global.params.isLinux || global.params.isOSX || global.params.isFreeBSD || global.params.isSolaris) && | |
| 3565 linkage != LINK.LINKd && shidden && sthis) | |
| 3566 { | |
| 3567 /* swap shidden and sthis | |
| 3568 */ | |
| 3569 Symbol* sp = params[0]; | |
| 3570 params[0] = params[1]; | |
| 3571 params[1] = sp; | |
| 3572 } | |
| 3573 | |
| 89 | 3574 for (size_t i = 0; i < pi; i++) |
| 174 | 3575 { |
| 0 | 3576 Symbol *sp = params[i]; |
| 3577 sp.Sclass = SC.SCparameter; | |
| 3578 sp.Sflags &= ~SFL.SFLspill; | |
| 3579 sp.Sfl = FL.FLpara; | |
| 3580 symbol_add(sp); | |
| 3581 } | |
| 3582 | |
| 3583 // First parameter goes in register | |
| 3584 if (pi) | |
| 3585 { | |
| 3586 Symbol* sp = params[0]; | |
| 3587 if ((tyf == TYM.TYjfunc || tyf == TYM.TYmfunc) && type_jparam(sp.Stype)) | |
| 174 | 3588 { |
| 0 | 3589 sp.Sclass = SC.SCfastpar; |
| 3590 sp.Spreg = (tyf == TYM.TYjfunc) ? REG.AX : REG.CX; | |
| 3591 sp.Sfl = FL.FLauto; | |
| 3592 //printf("'%s' is SCfastpar\n",sp.Sident); | |
| 3593 } | |
| 3594 } | |
| 3595 | |
| 3596 if (func.fbody) | |
| 174 | 3597 { |
| 0 | 3598 block* b; |
| 3599 Blockx bx; | |
| 3600 Statement sbody; | |
| 3601 | |
| 176 | 3602 global.localgot = null; |
| 0 | 3603 |
| 3604 sbody = func.fbody; | |
| 3605 ///memset(&bx, 0, (bx).sizeof); | |
| 3606 bx.startblock = block_calloc(); | |
| 3607 bx.curblock = bx.startblock; | |
| 3608 bx.funcsym = s; | |
| 3609 bx.scope_index = -1; | |
| 3610 bx.classdec = cd; | |
| 3611 bx.member = func; | |
| 3612 bx.module_ = getModule(); | |
| 3613 irs.blx = &bx; | |
| 3614 | |
| 3615 buildClosure(&irs); | |
| 3616 | |
| 3617 static if (false) { | |
| 3618 if (func.isSynchronized()) | |
| 3619 { | |
| 3620 if (cd) | |
| 174 | 3621 { |
| 0 | 3622 elem *esync; |
| 3623 if (func.isStatic()) | |
| 3624 { // monitor is in ClassInfo | |
| 3625 esync = el_ptr(cd.toSymbol()); | |
| 3626 } | |
| 3627 else | |
| 3628 { // 'this' is the monitor | |
| 3629 esync = el_var(sthis); | |
| 3630 } | |
| 3631 | |
| 3632 if (func.isStatic() || sbody.usesEH() || | |
| 3633 !(config.flags2 & CFG2.CFG2seh)) | |
| 3634 { // BUG: what if frequire or fensure uses EH? | |
| 3635 | |
| 3636 sbody = new SynchronizedStatement(func.loc, esync, sbody); | |
| 3637 } | |
| 3638 else | |
| 3639 { | |
| 3640 version (TARGET_WINDOS) { | |
| 3641 if (config.flags2 & CFG2.CFG2seh) | |
| 3642 { | |
| 3643 /* The "jmonitor" uses an optimized exception handling frame | |
| 3644 * which is a little shorter than the more general EH frame. | |
| 3645 * It isn't strictly necessary. | |
| 3646 */ | |
| 3647 s.Sfunc.Fflags3 |= Fjmonitor; | |
| 3648 } | |
| 3649 } | |
| 3650 el_free(esync); | |
| 3651 } | |
| 3652 } | |
| 3653 else | |
| 3654 { | |
| 3655 error("synchronized function %s must be a member of a class", func.toChars()); | |
| 3656 } | |
| 3657 } | |
| 3658 } else version (TARGET_WINDOS) { | |
| 3659 if (func.isSynchronized() && cd && config.flags2 & CFG2.CFG2seh && | |
| 3660 !func.isStatic() && !sbody.usesEH()) | |
| 3661 { | |
| 3662 /* The "jmonitor" hack uses an optimized exception handling frame | |
| 3663 * which is a little shorter than the more general EH frame. | |
| 3664 */ | |
| 3665 s.Sfunc.Fflags3 |= F3.Fjmonitor; | |
| 3666 } | |
| 3667 } | |
| 3668 | |
| 3669 sbody.toIR(&irs); | |
| 3670 bx.curblock.BC = BC.BCret; | |
| 3671 | |
| 3672 f.Fstartblock = bx.startblock; | |
| 3673 // einit = el_combine(einit,bx.init); | |
| 3674 | |
| 3675 if (isCtorDeclaration()) | |
| 3676 { | |
| 3677 assert(sthis); | |
| 3678 for (b = f.Fstartblock; b; b = b.Bnext) | |
| 3679 { | |
| 3680 if (b.BC == BC.BCret) | |
| 3681 { | |
| 3682 b.BC = BC.BCretexp; | |
| 3683 b.Belem = el_combine(b.Belem, el_var(sthis)); | |
| 3684 } | |
| 3685 } | |
| 174 | 3686 } |
| 0 | 3687 } |
| 3688 | |
| 3689 // If static constructor | |
| 179 | 3690 if (isSharedStaticCtorDeclaration()) // must come first because it derives from StaticCtorDeclaration |
| 0 | 3691 { |
| 179 | 3692 elem* e = el_una(OPucall, TYvoid, el_var(s)); |
| 3693 global.esharedctor = el_combine(global.esharedctor, e); | |
| 3694 } | |
| 3695 else if (isStaticCtorDeclaration()) | |
| 3696 { | |
| 3697 elem* e = el_una(OPucall, TYvoid, el_var(s)); | |
| 176 | 3698 global.ector = el_combine(global.ector, e); |
| 0 | 3699 } |
| 3700 | |
| 3701 // If static destructor | |
| 179 | 3702 if (auto f_ = isSharedStaticDtorDeclaration()) // must come first because it derives from StaticDtorDeclaration |
| 0 | 3703 { |
| 3704 elem* e; | |
| 3705 | |
| 3706 version (STATICCTOR) { | |
| 179 | 3707 e = el_bin(OPcall, TYvoid, el_var(rtlsym[RTLSYM_FATEXIT]), el_ptr(s)); |
| 3708 esharedctor = el_combine(esharedctor, e); | |
| 3709 shareddtorcount++; | |
| 3710 } else { | |
| 3711 if (f_.vgate) | |
| 3712 { | |
| 3713 /* Increment destructor's vgate at construction time | |
| 3714 */ | |
| 3715 global.esharedctorgates.push(cast(void*)f_); | |
| 3716 } | |
| 3717 | |
| 3718 e = el_una(OPucall, TYvoid, el_var(s)); | |
| 3719 global.eshareddtor = el_combine(e, global.eshareddtor); | |
| 3720 } | |
| 3721 } | |
| 3722 else if (auto f_ = isStaticDtorDeclaration()) | |
| 3723 { | |
| 3724 elem* e; | |
| 3725 | |
| 3726 version (STATICCTOR) { | |
| 3727 e = el_bin(OPcall, TYvoid, el_var(rtlsym[RTLSYM_FATEXIT]), el_ptr(s)); | |
| 3728 global.ector = el_combine(ector, e); | |
| 0 | 3729 dtorcount++; |
| 3730 } else { | |
| 179 | 3731 if (f_.vgate) |
| 3732 { /* Increment destructor's vgate at construction time | |
| 0 | 3733 */ |
| 179 | 3734 global.ectorgates.push(cast(void*)f_); |
| 0 | 3735 } |
| 3736 | |
| 179 | 3737 e = el_una(OPucall, TYvoid, el_var(s)); |
| 176 | 3738 global.edtor = el_combine(e, global.edtor); |
| 0 | 3739 } |
| 3740 } | |
| 3741 | |
| 3742 // If unit test | |
| 3743 if (isUnitTestDeclaration()) | |
| 3744 { | |
| 3745 elem* e = el_una(OPER.OPucall, TYM.TYvoid, el_var(s)); | |
| 176 | 3746 global.etest = el_combine(global.etest, e); |
| 0 | 3747 } |
| 3748 | |
| 3749 if (global.errors) | |
| 3750 return; | |
| 3751 | |
| 3752 writefunc(s); | |
| 174 | 3753 |
| 0 | 3754 if (isExport()) { |
| 3755 obj_export(s, Poffset); | |
| 3756 } | |
| 3757 | |
| 89 | 3758 for (size_t i = 0; i < irs.deferToObj.dim; i++) |
| 0 | 3759 { |
| 3760 Dsymbol ss = cast(Dsymbol)irs.deferToObj.data[i]; | |
| 3761 ss.toObjFile(0); | |
| 3762 } | |
| 3763 | |
|
22
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Robert Clipsham <robert@octarineparrot.com>
parents:
17
diff
changeset
|
3764 version (POSIX) { ///TARGET_LINUX || TARGET_OSX || TARGET_FREEBSD || TARGET_SOLARIS |
| 0 | 3765 // A hack to get a pointer to this function put in the .dtors segment |
| 3766 if (ident && ident.toChars() == "_STD") { | |
| 3767 obj_staticdtor(s); | |
| 3768 } | |
| 3769 } | |
| 3770 version (DMDV2) { | |
| 174 | 3771 if (irs.startaddress) |
| 0 | 3772 { |
| 3773 writef("Setting start address\n"); | |
| 3774 obj_startaddress(irs.startaddress); | |
| 3775 } | |
| 3776 } | |
| 3777 } | |
| 174 | 3778 |
| 72 | 3779 override int cvMember(ubyte* p) |
| 0 | 3780 { |
| 3781 assert(false); | |
| 3782 } | |
| 174 | 3783 |
| 0 | 3784 /************************************* |
| 3785 * Closures are implemented by taking the local variables that | |
| 3786 * need to survive the scope of the function, and copying them | |
| 3787 * into a gc allocated chuck of memory. That chunk, called the | |
| 3788 * closure here, is inserted into the linked list of stack | |
| 3789 * frames instead of the usual stack frame. | |
| 3790 * | |
| 3791 * buildClosure() inserts code just after the function prolog | |
| 3792 * is complete. It allocates memory for the closure, allocates | |
| 3793 * a local variable (sclosure) to point to it, inserts into it | |
| 3794 * the link to the enclosing frame, and copies into it the parameters | |
| 3795 * that are referred to in nested functions. | |
| 3796 * In VarExp.toElem and SymOffExp.toElem, when referring to a | |
| 3797 * variable that is in a closure, takes the offset from sclosure rather | |
| 3798 * than from the frame pointer. | |
| 3799 * | |
| 3800 * getEthis() and NewExp.toElem need to use sclosure, if set, rather | |
| 3801 * than the current frame pointer. | |
| 3802 */ | |
| 3803 void buildClosure(IRState* irs) | |
| 3804 { | |
| 3805 if (needsClosure()) | |
| 174 | 3806 { |
| 0 | 3807 // Generate closure on the heap |
| 3808 // BUG: doesn't capture variadic arguments passed to this function | |
| 3809 | |
| 3810 version (DMDV2) { | |
| 3811 /* BUG: doesn't handle destructors for the local variables. | |
| 3812 * The way to do it is to make the closure variables the fields | |
| 3813 * of a class object: | |
| 3814 * class Closure | |
| 3815 * { vtbl[] | |
| 3816 * monitor | |
| 3817 * ptr to destructor | |
| 3818 * sthis | |
| 3819 * ... closure variables ... | |
| 3820 * ~this() { call destructor } | |
| 3821 * } | |
| 3822 */ | |
| 3823 } | |
| 3824 //printf("FuncDeclaration.buildClosure()\n"); | |
| 3825 Symbol* sclosure; | |
| 176 | 3826 sclosure = symbol_name("__closptr".ptr, SC.SCauto, global.tvoidptr.toCtype()); |
| 0 | 3827 sclosure.Sflags |= SFL.SFLtrue | SFL.SFLfree; |
| 3828 symbol_add(sclosure); | |
| 3829 irs.sclosure = sclosure; | |
| 3830 | |
| 3831 uint offset = PTRSIZE; // leave room for previous sthis | |
|
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|
3832 foreach (Dsymbol s3; closureVars) |
| 174 | 3833 { |
|
77
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parents:
74
diff
changeset
|
3834 auto v = cast(VarDeclaration)s3; |
| 0 | 3835 assert(v.isVarDeclaration()); |
| 3836 | |
| 3837 version (DMDV2) { | |
| 3838 if (v.needsAutoDtor()) | |
| 3839 v.error("has scoped destruction, cannot build closure"); | |
| 3840 } | |
| 3841 /* Align and allocate space for v in the closure | |
| 3842 * just like AggregateDeclaration.addField() does. | |
| 3843 */ | |
| 3844 uint memsize; | |
| 3845 uint memalignsize; | |
| 3846 uint xalign; | |
| 3847 /// version (DMDV2) { | |
| 3848 if (v.storage_class & STC.STClazy) | |
| 3849 { | |
| 3850 /* Lazy variables are really delegates, | |
| 3851 * so give same answers that TypeDelegate would | |
| 3852 */ | |
| 3853 memsize = PTRSIZE * 2; | |
| 3854 memalignsize = memsize; | |
| 3855 xalign = global.structalign; | |
| 3856 } | |
| 3857 else | |
| 3858 /// } | |
| 3859 { | |
| 3860 memsize = cast(uint)v.type.size(); | |
| 3861 memalignsize = v.type.alignsize(); | |
| 3862 xalign = v.type.memalign(global.structalign); | |
| 3863 } | |
| 3864 AggregateDeclaration.alignmember(xalign, memalignsize, &offset); | |
| 3865 v.offset = offset; | |
| 3866 offset += memsize; | |
| 3867 | |
| 3868 /* Can't do nrvo if the variable is put in a closure, since | |
| 3869 * what the shidden points to may no longer exist. | |
| 3870 */ | |
| 3871 if (nrvo_can && nrvo_var == v) | |
| 3872 { | |
| 3873 nrvo_can = 0; | |
| 3874 } | |
| 3875 } | |
| 3876 // offset is now the size of the closure | |
| 3877 | |
| 3878 // Allocate memory for the closure | |
| 3879 elem* e; | |
| 3880 e = el_long(TYM.TYint, offset); | |
| 3881 e = el_bin(OPER.OPcall, TYM.TYnptr, el_var(rtlsym[RTLSYM.RTLSYM_ALLOCMEMORY]), e); | |
| 3882 | |
| 3883 // Assign block of memory to sclosure | |
| 3884 // sclosure = allocmemory(sz); | |
| 3885 e = el_bin(OPER.OPeq, TYM.TYvoid, el_var(sclosure), e); | |
| 3886 | |
| 3887 // Set the first element to sthis | |
| 3888 // *(sclosure + 0) = sthis; | |
| 3889 elem* ethis; | |
| 3890 if (irs.sthis) | |
| 3891 ethis = el_var(irs.sthis); | |
| 3892 else | |
| 3893 ethis = el_long(TYM.TYnptr, 0); | |
| 3894 elem *ex = el_una(OPER.OPind, TYM.TYnptr, el_var(sclosure)); | |
| 3895 ex = el_bin(OPER.OPeq, TYM.TYnptr, ex, ethis); | |
| 3896 e = el_combine(e, ex); | |
| 3897 | |
| 3898 // Copy function parameters into closure | |
|
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|
3899 foreach (Dsymbol s3; closureVars) |
|
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Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
74
diff
changeset
|
3900 { auto v = cast(VarDeclaration)s3; |
| 0 | 3901 |
| 3902 if (!v.isParameter()) | |
| 3903 continue; | |
| 3904 TYM tym = v.type.totym(); | |
| 3905 if (v.type.toBasetype().ty == TY.Tsarray || v.isOut() || v.isRef()) | |
| 3906 tym = TYM.TYnptr; // reference parameters are just pointers | |
| 3907 /// version (DMDV2) { | |
| 3908 else if (v.storage_class & STC.STClazy) | |
| 3909 tym = TYM.TYdelegate; | |
| 3910 /// } | |
| 3911 ex = el_bin(OPER.OPadd, TYM.TYnptr, el_var(sclosure), el_long(TYM.TYint, v.offset)); | |
| 3912 ex = el_una(OPER.OPind, tym, ex); | |
| 3913 if (ex.Ety == TYM.TYstruct) | |
| 174 | 3914 { |
| 0 | 3915 ex.Enumbytes = cast(uint)v.type.size(); |
| 3916 ex = el_bin(OPER.OPstreq, tym, ex, el_var(v.toSymbol())); | |
| 3917 ex.Enumbytes = cast(uint)v.type.size(); | |
| 3918 } | |
| 3919 else | |
| 3920 { | |
| 3921 ex = el_bin(OPER.OPeq, tym, ex, el_var(v.toSymbol())); | |
| 3922 } | |
| 3923 | |
| 3924 e = el_combine(e, ex); | |
| 3925 } | |
| 3926 | |
| 3927 block_appendexp(irs.blx.curblock, e); | |
| 3928 } | |
| 3929 } | |
| 3930 | |
| 135 | 3931 /********************************************* |
| 3932 * Return the function's parameter list, and whether | |
| 3933 * it is variadic or not. | |
| 3934 */ | |
| 3935 | |
| 3936 Parameters getParameters(int *pvarargs) | |
| 3937 { | |
| 3938 Parameters fparameters; | |
| 3939 int fvarargs; | |
| 3940 | |
| 3941 if (type) | |
| 3942 { | |
| 3943 assert(type.ty == Tfunction); | |
| 3944 auto fdtype = cast(TypeFunction)type; | |
| 3945 fparameters = fdtype.parameters; | |
| 3946 fvarargs = fdtype.varargs; | |
| 3947 } | |
| 3948 else // Constructors don't have type's | |
| 3949 { | |
| 3950 CtorDeclaration fctor = isCtorDeclaration(); | |
| 3951 assert(fctor); | |
| 3952 fparameters = fctor.arguments; | |
| 3953 fvarargs = fctor.varargs; | |
| 3954 } | |
| 3955 if (pvarargs) | |
| 3956 *pvarargs = fvarargs; | |
| 3957 return fparameters; | |
| 3958 } | |
| 3959 | |
| 72 | 3960 override FuncDeclaration isFuncDeclaration() { return this; } |
| 3961 } | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
3962 |
| 174 | 3963 alias Vector!FuncDeclaration FuncDeclarations; |