Mercurial > projects > ddmd
annotate dmd/VarDeclaration.d @ 77:ad4792a1cfd6
more D-ification container accessing
| author | Eldar Insafutdinov <e.insafutdinov@gmail.com> |
|---|---|
| date | Sun, 29 Aug 2010 14:36:55 +0100 |
| parents | 7e0d548de9e6 |
| children | be2ab491772e b17640f0e4e8 |
| rev | line source |
|---|---|
| 0 | 1 module dmd.VarDeclaration; |
| 2 | |
| 3 import dmd.Declaration; | |
| 4 import dmd.SliceExp; | |
| 5 import dmd.ClassDeclaration; | |
| 6 import dmd.DeleteExp; | |
| 7 import dmd.SymOffExp; | |
| 8 import dmd.DotIdExp; | |
| 9 import dmd.PtrExp; | |
| 10 import dmd.CallExp; | |
| 11 import dmd.DotVarExp; | |
| 12 import dmd.CommaExp; | |
| 13 import dmd.CastExp; | |
| 14 import dmd.WANT; | |
| 15 import dmd.StructDeclaration; | |
|
68
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
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16 import dmd.StorageClassDeclaration; |
| 0 | 17 import dmd.DsymbolExp; |
| 18 import dmd.TypeSArray; | |
| 19 import dmd.IntegerExp; | |
| 20 import dmd.VarExp; | |
| 21 import dmd.AssignExp; | |
| 22 import dmd.TypeTypedef; | |
| 23 import dmd.ArrayInitializer; | |
| 24 import dmd.StructInitializer; | |
| 25 import dmd.NewExp; | |
| 26 import dmd.TupleDeclaration; | |
| 27 import dmd.AggregateDeclaration; | |
| 28 import dmd.InterfaceDeclaration; | |
| 29 import dmd.TemplateInstance; | |
| 30 import dmd.Id; | |
| 31 import dmd.Initializer; | |
| 32 import dmd.TypeStruct; | |
| 33 import dmd.TypeTuple; | |
| 34 import dmd.Argument; | |
| 35 import dmd.ExpInitializer; | |
| 36 import dmd.ArrayTypes; | |
| 37 import dmd.Dsymbol; | |
| 38 import dmd.Expression; | |
| 39 import dmd.Loc; | |
| 40 import dmd.STC; | |
| 41 import dmd.TOK; | |
| 42 import dmd.TupleExp; | |
| 43 import dmd.Global; | |
|
22
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Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
16
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changeset
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44 import dmd.Module; |
| 0 | 45 import dmd.FuncDeclaration; |
| 46 import dmd.Type; | |
| 47 import dmd.TY; | |
| 48 import dmd.LINK; | |
| 49 import dmd.Scope; | |
| 50 import dmd.Identifier; | |
| 51 import dmd.OutBuffer; | |
| 52 import dmd.HdrGenState; | |
| 53 import dmd.PROT; | |
| 73 | 54 import dmd.expression.Util; |
| 0 | 55 |
| 56 import dmd.backend.Symbol; | |
| 57 import dmd.backend.TYM; | |
| 58 import dmd.backend.FL; | |
| 59 import dmd.backend.DT; | |
| 60 import dmd.backend.mTY; | |
| 61 import dmd.backend.SC; | |
| 62 import dmd.backend.mTYman; | |
| 63 import dmd.backend.TYPE; | |
| 64 import dmd.backend.Util; | |
| 65 import dmd.backend.LIST; | |
| 66 | |
| 67 import std.stdio : writef; | |
| 68 import std.string : toStringz; | |
| 69 | |
| 70 class VarDeclaration : Declaration | |
| 71 { | |
| 72 Initializer init; | |
| 73 uint offset; | |
| 74 bool noauto; // no auto semantics | |
| 75 version (DMDV2) { | |
| 76 FuncDeclarations nestedrefs; // referenced by these lexically nested functions | |
| 77 } else { | |
| 78 int nestedref; // referenced by a lexically nested function | |
| 79 } | |
| 80 int ctorinit; // it has been initialized in a ctor | |
| 81 int onstack; // 1: it has been allocated on the stack | |
| 82 // 2: on stack, run destructor anyway | |
| 83 int canassign; // it can be assigned to | |
| 84 Dsymbol aliassym; // if redone as alias to another symbol | |
| 85 Expression value; // when interpreting, this is the value | |
| 86 // (null if value not determinable) | |
| 87 version (DMDV2) { | |
| 88 VarDeclaration rundtor; // if !null, rundtor is tested at runtime to see | |
| 89 // if the destructor should be run. Used to prevent | |
| 90 // dtor calls on postblitted vars | |
| 91 } | |
| 92 | |
| 93 this(Loc loc, Type type, Identifier id, Initializer init) | |
| 94 { | |
| 95 super(id); | |
| 96 | |
| 97 debug { | |
| 98 if (!type && !init) | |
| 99 { | |
| 100 writef("VarDeclaration('%s')\n", id.toChars()); | |
| 101 //*(char*)0=0; | |
| 102 } | |
| 103 } | |
| 104 assert(type || init); | |
| 105 this.type = type; | |
| 106 this.init = init; | |
| 107 this.loc = loc; | |
| 108 | |
| 109 nestedrefs = new FuncDeclarations(); | |
| 110 } | |
| 111 | |
| 72 | 112 override Dsymbol syntaxCopy(Dsymbol s) |
| 0 | 113 { |
| 114 //printf("VarDeclaration.syntaxCopy(%s)\n", toChars()); | |
| 115 | |
| 116 VarDeclaration sv; | |
| 117 if (s) | |
| 118 { | |
| 119 sv = cast(VarDeclaration)s; | |
| 120 } | |
| 121 else | |
| 122 { | |
| 123 Initializer init = null; | |
| 124 if (this.init) | |
| 125 { | |
| 126 init = this.init.syntaxCopy(); | |
| 127 //init.isExpInitializer().exp.print(); | |
| 128 //init.isExpInitializer().exp.dump(0); | |
| 129 } | |
| 130 | |
| 131 sv = new VarDeclaration(loc, type ? type.syntaxCopy() : null, ident, init); | |
| 132 sv.storage_class = storage_class; | |
| 133 } | |
| 134 | |
| 135 version (_DH) { | |
| 136 // Syntax copy for header file | |
| 137 if (!htype) // Don't overwrite original | |
| 138 { | |
| 139 if (type) // Make copy for both old and new instances | |
| 140 { htype = type.syntaxCopy(); | |
| 141 sv.htype = type.syntaxCopy(); | |
| 142 } | |
| 143 } | |
| 144 else // Make copy of original for new instance | |
| 145 sv.htype = htype.syntaxCopy(); | |
| 146 if (!hinit) | |
| 147 { | |
| 148 if (init) | |
| 149 { | |
| 150 hinit = init.syntaxCopy(); | |
| 151 sv.hinit = init.syntaxCopy(); | |
| 152 } | |
| 153 } | |
| 154 else | |
| 155 sv.hinit = hinit.syntaxCopy(); | |
| 156 } | |
| 157 return sv; | |
| 158 } | |
| 159 | |
| 72 | 160 override void semantic(Scope sc) |
| 0 | 161 { |
| 162 static if (false) { | |
| 163 printf("VarDeclaration.semantic('%s', parent = '%s')\n", toChars(), sc.parent.toChars()); | |
| 164 printf(" type = %s\n", type ? type.toChars() : "null"); | |
| 165 printf(" stc = x%x\n", sc.stc); | |
| 166 printf(" storage_class = x%x\n", storage_class); | |
| 167 printf("linkage = %d\n", sc.linkage); | |
| 168 //if (strcmp(toChars(), "mul") == 0) halt(); | |
| 169 } | |
| 170 | |
| 171 storage_class |= sc.stc; | |
| 172 if (storage_class & STC.STCextern && init) | |
| 173 error("extern symbols cannot have initializers"); | |
| 174 | |
| 175 /* If auto type inference, do the inference | |
| 176 */ | |
| 177 int inferred = 0; | |
| 178 if (!type) | |
| 179 { | |
| 180 inuse++; | |
| 181 type = init.inferType(sc); | |
| 182 inuse--; | |
| 183 inferred = 1; | |
| 184 | |
| 185 /* This is a kludge to support the existing syntax for RAII | |
| 186 * declarations. | |
| 187 */ | |
| 188 storage_class &= ~STC.STCauto; | |
| 189 originalType = type; | |
| 190 } | |
| 191 else | |
| 192 { | |
| 193 if (!originalType) | |
| 194 originalType = type; | |
| 195 | |
| 196 type = type.semantic(loc, sc); | |
| 197 } | |
| 198 //printf(" semantic type = %s\n", type ? type.toChars() : "null"); | |
| 199 | |
| 200 type.checkDeprecated(loc, sc); | |
| 201 linkage = sc.linkage; | |
| 202 this.parent = sc.parent; | |
| 203 //printf("this = %p, parent = %p, '%s'\n", this, parent, parent.toChars()); | |
| 204 protection = sc.protection; | |
| 205 //printf("sc.stc = %x\n", sc.stc); | |
| 206 //printf("storage_class = x%x\n", storage_class); | |
| 207 | |
| 208 version (DMDV2) { | |
| 209 if (storage_class & STC.STCgshared && global.params.safe && !sc.module_.safe) | |
| 210 { | |
| 211 error("__gshared not allowed in safe mode; use shared"); | |
| 212 } | |
| 213 } | |
| 214 | |
| 215 Dsymbol parent = toParent(); | |
| 216 FuncDeclaration fd = parent.isFuncDeclaration(); | |
| 217 | |
| 218 Type tb = type.toBasetype(); | |
| 219 if (tb.ty == TY.Tvoid && !(storage_class & STC.STClazy)) | |
| 220 { error("voids have no value"); | |
| 221 type = Type.terror; | |
| 222 tb = type; | |
| 223 } | |
| 224 if (tb.ty == TY.Tfunction) | |
| 225 { error("cannot be declared to be a function"); | |
| 226 type = Type.terror; | |
| 227 tb = type; | |
| 228 } | |
| 229 if (tb.ty == TY.Tstruct) | |
| 230 { TypeStruct ts = cast(TypeStruct)tb; | |
| 231 | |
| 232 if (!ts.sym.members) | |
| 233 { | |
| 234 error("no definition of struct %s", ts.toChars()); | |
| 235 } | |
| 236 } | |
| 237 | |
| 238 if (tb.ty == TY.Ttuple) | |
| 239 { /* Instead, declare variables for each of the tuple elements | |
| 240 * and add those. | |
| 241 */ | |
| 242 TypeTuple tt = cast(TypeTuple)tb; | |
| 243 size_t nelems = Argument.dim(tt.arguments); | |
| 244 Objects exps = new Objects(); | |
| 245 exps.setDim(nelems); | |
| 246 Expression ie = init ? init.toExpression() : null; | |
| 247 | |
| 248 for (size_t i = 0; i < nelems; i++) | |
| 249 { Argument arg = Argument.getNth(tt.arguments, i); | |
| 250 | |
|
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Implemented methods for Tuples, fixed some linking issues.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
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251 OutBuffer buf = new OutBuffer(); |
| 53 | 252 ///buf.printf("_%s_field_%zu", ident.toChars(), i); |
| 253 buf.printf("_%s_field_%s", ident.toChars(), i); | |
| 0 | 254 buf.writeByte(0); |
| 255 string name = buf.extractString(); | |
| 256 Identifier id = new Identifier(name, TOK.TOKidentifier); | |
| 257 | |
| 258 Expression einit = ie; | |
| 259 if (ie && ie.op == TOK.TOKtuple) | |
| 260 { einit = cast(Expression)(cast(TupleExp)ie).exps.data[i]; | |
| 261 } | |
| 262 Initializer ti = init; | |
| 263 if (einit) | |
| 264 { ti = new ExpInitializer(einit.loc, einit); | |
| 265 } | |
| 266 | |
|
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Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
267 auto v = new VarDeclaration(loc, arg.type, id, ti); |
| 0 | 268 //printf("declaring field %s of type %s\n", v.toChars(), v.type.toChars()); |
| 269 v.semantic(sc); | |
| 270 | |
| 271 if (sc.scopesym) | |
| 272 { //printf("adding %s to %s\n", v.toChars(), sc.scopesym.toChars()); | |
| 273 if (sc.scopesym.members) | |
|
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Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
274 sc.scopesym.members.push(v); |
| 0 | 275 } |
| 276 | |
| 277 Expression e = new DsymbolExp(loc, v); | |
| 278 exps.data[i] = cast(void*)e; | |
| 279 } | |
| 280 TupleDeclaration v2 = new TupleDeclaration(loc, ident, exps); | |
| 281 v2.isexp = 1; | |
| 282 aliassym = v2; | |
| 283 return; | |
| 284 } | |
| 285 | |
| 286 Lagain: | |
| 287 /* Storage class can modify the type | |
| 288 */ | |
| 289 type = type.addStorageClass(storage_class); | |
| 290 | |
| 291 /* Adjust storage class to reflect type | |
| 292 */ | |
| 293 if (type.isConst()) | |
| 294 { storage_class |= STC.STCconst; | |
| 295 if (type.isShared()) | |
| 296 storage_class |= STC.STCshared; | |
| 297 } | |
| 298 else if (type.isInvariant()) | |
| 299 storage_class |= STC.STCimmutable; | |
| 300 else if (type.isShared()) | |
| 301 storage_class |= STC.STCshared; | |
| 302 | |
| 303 if (isSynchronized()) | |
| 304 { | |
| 305 error("variable %s cannot be synchronized", toChars()); | |
| 306 } | |
| 307 else if (isOverride()) | |
| 308 { | |
| 309 error("override cannot be applied to variable"); | |
| 310 } | |
| 311 else if (isAbstract()) | |
| 312 { | |
| 313 error("abstract cannot be applied to variable"); | |
| 314 } | |
| 315 else if (storage_class & STC.STCfinal) | |
| 316 { | |
| 317 error("final cannot be applied to variable"); | |
| 318 } | |
| 319 | |
| 320 if (storage_class & (STC.STCstatic | STC.STCextern | STC.STCmanifest | STC.STCtemplateparameter | STC.STCtls | STC.STCgshared)) | |
| 321 { | |
| 322 } | |
| 323 else | |
| 324 { | |
| 325 AggregateDeclaration aad = sc.anonAgg; | |
| 326 if (!aad) | |
| 327 aad = parent.isAggregateDeclaration(); | |
| 328 if (aad) | |
| 329 { | |
| 330 ///version (DMDV2) { | |
| 331 assert(!(storage_class & (STC.STCextern | STC.STCstatic | STC.STCtls | STC.STCgshared))); | |
| 332 | |
| 333 if (storage_class & (STC.STCconst | STC.STCimmutable) && init) | |
| 334 { | |
| 335 if (!type.toBasetype().isTypeBasic()) | |
| 336 storage_class |= STC.STCstatic; | |
| 337 } | |
| 338 else | |
| 339 ///} | |
| 340 aad.addField(sc, this); | |
| 341 } | |
| 342 | |
| 343 InterfaceDeclaration id = parent.isInterfaceDeclaration(); | |
| 344 if (id) | |
| 345 { | |
| 346 error("field not allowed in interface"); | |
| 347 } | |
| 348 | |
| 349 /* Templates cannot add fields to aggregates | |
| 350 */ | |
| 351 TemplateInstance ti = parent.isTemplateInstance(); | |
| 352 if (ti) | |
| 353 { | |
| 354 // Take care of nested templates | |
| 355 while (1) | |
| 356 { | |
| 357 TemplateInstance ti2 = ti.tempdecl.parent.isTemplateInstance(); | |
| 358 if (!ti2) | |
| 359 break; | |
| 360 ti = ti2; | |
| 361 } | |
| 362 | |
| 363 // If it's a member template | |
| 364 AggregateDeclaration ad = ti.tempdecl.isMember(); | |
| 365 if (ad && storage_class != STC.STCundefined) | |
| 366 { | |
| 367 error("cannot use template to add field to aggregate '%s'", ad.toChars()); | |
| 368 } | |
| 369 } | |
| 370 } | |
| 371 | |
| 372 version (DMDV2) { | |
| 373 if ((storage_class & (STC.STCref | STC.STCparameter | STC.STCforeach)) == STC.STCref && ident != Id.This) | |
| 374 { | |
| 375 error("only parameters or foreach declarations can be ref"); | |
| 376 } | |
| 377 } | |
| 378 | |
| 379 if (type.isauto() && !noauto) | |
| 380 { | |
| 381 if (storage_class & (STC.STCfield | STC.STCout | STC.STCref | STC.STCstatic | STC.STCmanifest | STC.STCtls | STC.STCgshared) || !fd) | |
| 382 { | |
| 383 error("globals, statics, fields, manifest constants, ref and out parameters cannot be scope"); | |
| 384 } | |
| 385 | |
| 386 if (!(storage_class & (STC.STCauto | STC.STCscope))) | |
| 387 { | |
| 388 if (!(storage_class & STC.STCparameter) && ident != Id.withSym) | |
| 389 error("reference to scope class must be scope"); | |
| 390 } | |
| 391 } | |
| 392 | |
| 393 if ((isConst() || isInvariant()) && !init && !fd) | |
| 394 { | |
| 395 // Initialize by constructor only | |
| 396 storage_class |= STC.STCctorinit; | |
| 397 } | |
| 398 | |
| 399 if (init) | |
| 400 storage_class |= STC.STCinit; // remember we had an explicit initializer | |
| 401 else if (storage_class & STC.STCmanifest) | |
| 402 error("manifest constants must have initializers"); | |
| 403 | |
| 404 TOK op = TOK.TOKconstruct; | |
| 405 if (!init && !sc.inunion && !isStatic() && fd && | |
| 406 (!(storage_class & (STC.STCfield | STC.STCin | STC.STCforeach | STC.STCparameter)) || (storage_class & STC.STCout)) && | |
| 407 type.size() != 0) | |
| 408 { | |
| 409 // Provide a default initializer | |
| 410 //printf("Providing default initializer for '%s'\n", toChars()); | |
| 411 if (type.ty == TY.Tstruct && | |
| 412 (cast(TypeStruct)type).sym.zeroInit) | |
| 413 { /* If a struct is all zeros, as a special case | |
| 414 * set it's initializer to the integer 0. | |
| 415 * In AssignExp.toElem(), we check for this and issue | |
| 416 * a memset() to initialize the struct. | |
| 417 * Must do same check in interpreter. | |
| 418 */ | |
| 419 Expression e = new IntegerExp(loc, 0, Type.tint32); | |
| 420 Expression e1; | |
| 421 e1 = new VarExp(loc, this); | |
| 422 e = new AssignExp(loc, e1, e); | |
| 423 e.op = TOK.TOKconstruct; | |
| 424 e.type = e1.type; // don't type check this, it would fail | |
| 425 init = new ExpInitializer(loc, e); | |
| 426 return; | |
| 427 } | |
| 428 else if (type.ty == TY.Ttypedef) | |
| 429 { TypeTypedef td = cast(TypeTypedef)type; | |
| 430 if (td.sym.init) | |
| 431 { init = td.sym.init; | |
| 432 ExpInitializer ie = init.isExpInitializer(); | |
| 433 if (ie) | |
| 434 // Make copy so we can modify it | |
| 435 init = new ExpInitializer(ie.loc, ie.exp); | |
| 436 } | |
| 437 else | |
| 438 init = getExpInitializer(); | |
| 439 } | |
| 440 else | |
| 441 { | |
| 442 init = getExpInitializer(); | |
| 443 } | |
| 444 // Default initializer is always a blit | |
| 445 op = TOK.TOKblit; | |
| 446 } | |
| 447 | |
| 448 if (init) | |
| 449 { | |
| 450 sc = sc.push(); | |
| 451 sc.stc &= ~(STC.STC_TYPECTOR | STC.STCpure | STC.STCnothrow | STC.STCref); | |
| 452 | |
| 453 ArrayInitializer ai = init.isArrayInitializer(); | |
| 454 if (ai && tb.ty == TY.Taarray) | |
| 455 { | |
| 456 init = ai.toAssocArrayInitializer(); | |
| 457 } | |
| 458 | |
| 459 StructInitializer si = init.isStructInitializer(); | |
| 460 ExpInitializer ei = init.isExpInitializer(); | |
| 461 | |
| 462 // See if initializer is a NewExp that can be allocated on the stack | |
| 463 if (ei && isScope() && ei.exp.op == TOK.TOKnew) | |
| 464 { NewExp ne = cast(NewExp)ei.exp; | |
| 465 if (!(ne.newargs && ne.newargs.dim)) | |
| 466 { ne.onstack = 1; | |
| 467 onstack = 1; | |
| 468 if (type.isBaseOf(ne.newtype.semantic(loc, sc), null)) | |
| 469 onstack = 2; | |
| 470 } | |
| 471 } | |
| 472 | |
| 473 // If inside function, there is no semantic3() call | |
| 474 if (sc.func) | |
| 475 { | |
| 476 // If local variable, use AssignExp to handle all the various | |
| 477 // possibilities. | |
| 478 if (fd && | |
| 479 !(storage_class & (STC.STCmanifest | STC.STCstatic | STC.STCtls | STC.STCgshared | STC.STCextern)) && | |
| 480 !init.isVoidInitializer()) | |
| 481 { | |
| 482 //printf("fd = '%s', var = '%s'\n", fd.toChars(), toChars()); | |
| 483 if (!ei) | |
| 484 { | |
| 485 Expression e = init.toExpression(); | |
| 486 if (!e) | |
| 487 { | |
| 488 init = init.semantic(sc, type); | |
| 489 e = init.toExpression(); | |
| 490 if (!e) | |
| 491 { error("is not a static and cannot have static initializer"); | |
| 492 return; | |
| 493 } | |
| 494 } | |
| 495 ei = new ExpInitializer(init.loc, e); | |
| 496 init = ei; | |
| 497 } | |
| 498 | |
| 499 Expression e1 = new VarExp(loc, this); | |
| 500 | |
| 501 Type t = type.toBasetype(); | |
| 502 if (t.ty == TY.Tsarray && !(storage_class & (STC.STCref | STC.STCout))) | |
| 503 { | |
| 504 ei.exp = ei.exp.semantic(sc); | |
| 505 if (!ei.exp.implicitConvTo(type)) | |
| 506 { | |
| 507 int dim = cast(int)(cast(TypeSArray)t).dim.toInteger(); /// | |
| 508 // If multidimensional static array, treat as one large array | |
| 509 while (1) | |
| 510 { | |
| 511 t = t.nextOf().toBasetype(); | |
| 512 if (t.ty != TY.Tsarray) | |
| 513 break; | |
| 514 dim *= (cast(TypeSArray)t).dim.toInteger(); | |
| 515 e1.type = new TypeSArray(t.nextOf(), new IntegerExp(Loc(0), dim, Type.tindex)); | |
| 516 } | |
| 517 } | |
| 518 e1 = new SliceExp(loc, e1, null, null); | |
| 519 } | |
| 520 else if (t.ty == TY.Tstruct) | |
| 521 { | |
| 522 ei.exp = ei.exp.semantic(sc); | |
| 523 version (DMDV2) { | |
| 524 /* Look to see if initializer is a call to the constructor | |
| 525 */ | |
| 526 StructDeclaration sd = (cast(TypeStruct)t).sym; | |
| 527 if (sd.ctor && // there are constructors | |
| 528 ei.exp.type.ty == TY.Tstruct && // rvalue is the same struct | |
| 529 (cast(TypeStruct)ei.exp.type).sym == sd && | |
| 530 ei.exp.op == TOK.TOKstar) | |
| 531 { | |
| 532 /* Look for form of constructor call which is: | |
| 533 * *__ctmp.ctor(arguments...) | |
| 534 */ | |
| 535 PtrExp pe = cast(PtrExp)ei.exp; | |
| 536 if (pe.e1.op == TOK.TOKcall) | |
| 537 { CallExp ce = cast(CallExp)pe.e1; | |
| 538 if (ce.e1.op == TOK.TOKdotvar) | |
| 539 { DotVarExp dve = cast(DotVarExp)ce.e1; | |
| 540 if (dve.var.isCtorDeclaration()) | |
| 541 { /* It's a constructor call, currently constructing | |
| 542 * a temporary __ctmp. | |
| 543 */ | |
| 544 /* Before calling the constructor, initialize | |
| 545 * variable with a bit copy of the default | |
| 546 * initializer | |
| 547 */ | |
| 548 Expression e = new AssignExp(loc, new VarExp(loc, this), t.defaultInit(loc)); | |
| 549 e.op = TOK.TOKblit; | |
| 550 e.type = t; | |
| 551 ei.exp = new CommaExp(loc, e, ei.exp); | |
| 552 | |
| 553 /* Replace __ctmp being constructed with e1 | |
| 554 */ | |
| 555 dve.e1 = e1; | |
| 556 return; | |
| 557 } | |
| 558 } | |
| 559 } | |
| 560 } | |
| 561 } | |
| 562 if (!ei.exp.implicitConvTo(type)) | |
| 73 | 563 { |
| 564 /* Look for opCall | |
| 565 * See bugzilla 2702 for more discussion | |
| 566 */ | |
| 567 Type ti = ei.exp.type.toBasetype(); | |
| 568 // Don't cast away invariant or mutability in initializer | |
| 569 if (search_function(sd, Id.call) && | |
| 570 /* Initializing with the same type is done differently | |
| 571 */ | |
| 572 !(ti.ty == Tstruct && t.toDsymbol(sc) == ti.toDsymbol(sc))) | |
| 573 { // Rewrite as e1.call(arguments) | |
| 574 Expression eCall = new DotIdExp(loc, e1, Id.call); | |
| 575 ei.exp = new CallExp(loc, eCall, ei.exp); | |
| 576 } | |
| 0 | 577 } |
| 578 } | |
| 579 ei.exp = new AssignExp(loc, e1, ei.exp); | |
| 580 ei.exp.op = op; | |
| 581 canassign++; | |
| 582 ei.exp = ei.exp.semantic(sc); | |
| 583 canassign--; | |
| 584 ei.exp.optimize(WANT.WANTvalue); | |
| 585 } | |
| 586 else | |
| 587 { | |
| 588 init = init.semantic(sc, type); | |
| 589 } | |
| 590 } | |
| 591 else if (storage_class & (STC.STCconst | STC.STCimmutable | STC.STCmanifest) || | |
| 592 type.isConst() || type.isInvariant()) | |
| 593 { | |
| 594 /* Because we may need the results of a const declaration in a | |
| 595 * subsequent type, such as an array dimension, before semantic2() | |
| 596 * gets ordinarily run, try to run semantic2() now. | |
| 597 * Ignore failure. | |
| 598 */ | |
| 599 | |
| 600 if (!global.errors && !inferred) | |
| 601 { | |
| 602 uint errors = global.errors; | |
| 603 global.gag++; | |
| 604 //printf("+gag\n"); | |
| 605 Expression e; | |
| 606 Initializer i2 = init; | |
| 607 inuse++; | |
| 608 if (ei) | |
| 609 { | |
| 610 e = ei.exp.syntaxCopy(); | |
| 611 e = e.semantic(sc); | |
| 612 e = e.implicitCastTo(sc, type); | |
| 613 } | |
| 614 else if (si || ai) | |
| 615 { i2 = init.syntaxCopy(); | |
| 616 i2 = i2.semantic(sc, type); | |
| 617 } | |
| 618 inuse--; | |
| 619 global.gag--; | |
| 620 //printf("-gag\n"); | |
| 621 if (errors != global.errors) // if errors happened | |
| 622 { | |
| 623 if (global.gag == 0) | |
| 624 global.errors = errors; // act as if nothing happened | |
| 625 version (DMDV2) { | |
| 626 /* Save scope for later use, to try again | |
| 627 */ | |
| 628 scope_ = new Scope(sc); | |
| 629 scope_.setNoFree(); | |
| 630 } | |
| 631 } | |
| 632 else if (ei) | |
| 633 { | |
| 634 if (isDataseg()) | |
| 635 /* static const/invariant does CTFE | |
| 636 */ | |
| 637 e = e.optimize(WANT.WANTvalue | WANT.WANTinterpret); | |
| 638 else | |
| 639 e = e.optimize(WANT.WANTvalue); | |
| 640 if (e.op == TOK.TOKint64 || e.op == TOK.TOKstring || e.op == TOK.TOKfloat64) | |
| 641 { | |
| 642 ei.exp = e; // no errors, keep result | |
| 643 } | |
| 644 ///version (DMDV2) { | |
| 645 else | |
| 646 { | |
| 647 /* Save scope for later use, to try again | |
| 648 */ | |
| 649 scope_ = new Scope(sc); | |
| 650 scope_.setNoFree(); | |
| 651 } | |
| 652 ///} | |
| 653 } | |
| 654 else | |
| 655 init = i2; // no errors, keep result | |
| 656 } | |
| 657 } | |
| 658 sc = sc.pop(); | |
| 659 } | |
| 660 } | |
| 661 | |
| 72 | 662 override void semantic2(Scope sc) |
| 0 | 663 { |
| 664 //printf("VarDeclaration.semantic2('%s')\n", toChars()); | |
| 665 if (init && !toParent().isFuncDeclaration()) | |
| 666 { | |
| 667 inuse++; | |
| 668 static if (false) { | |
| 669 ExpInitializer ei = init.isExpInitializer(); | |
| 670 if (ei) | |
| 671 { | |
| 672 ei.exp.dump(0); | |
| 673 printf("type = %p\n", ei.exp.type); | |
| 674 } | |
| 675 } | |
| 676 init = init.semantic(sc, type); | |
| 677 inuse--; | |
| 678 } | |
| 679 } | |
| 680 | |
| 72 | 681 override string kind() |
| 0 | 682 { |
| 683 return "variable"; | |
| 684 } | |
| 685 | |
| 72 | 686 override void toCBuffer(OutBuffer buf, HdrGenState* hgs) |
| 0 | 687 { |
|
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688 StorageClassDeclaration.stcToCBuffer(buf, storage_class); |
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689 |
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690 /* If changing, be sure and fix CompoundDeclarationStatement.toCBuffer() |
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691 * too. |
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692 */ |
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693 if (type) |
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694 type.toCBuffer(buf, ident, hgs); |
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695 else |
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696 buf.writestring(ident.toChars()); |
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697 if (init) |
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698 { |
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699 buf.writestring(" = "); |
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700 ///version (DMDV2) { |
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701 ExpInitializer ie = init.isExpInitializer(); |
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702 if (ie && (ie.exp.op == TOKconstruct || ie.exp.op == TOKblit)) |
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703 (cast(AssignExp)ie.exp).e2.toCBuffer(buf, hgs); |
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704 else |
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705 ///} |
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706 init.toCBuffer(buf, hgs); |
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707 } |
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708 buf.writeByte(';'); |
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709 buf.writenl(); |
| 0 | 710 } |
| 711 | |
| 712 version (_DH) { | |
| 713 Type htype; | |
| 714 Initializer hinit; | |
| 715 } | |
| 72 | 716 override bool needThis() |
| 0 | 717 { |
| 718 //printf("VarDeclaration.needThis(%s, x%x)\n", toChars(), storage_class); | |
| 719 return (storage_class & STC.STCfield) != 0; | |
| 720 } | |
| 721 | |
| 72 | 722 override bool isImportedSymbol() |
| 0 | 723 { |
| 724 if (protection == PROT.PROTexport && !init && (storage_class & STC.STCstatic || parent.isModule())) | |
| 725 return true; | |
| 726 | |
| 727 return false; | |
| 728 } | |
| 729 | |
| 72 | 730 override bool isDataseg() |
| 0 | 731 { |
| 732 static if (false) { | |
| 733 printf("VarDeclaration.isDataseg(%p, '%s')\n", this, toChars()); | |
| 734 printf("%x, %p, %p\n", storage_class & (STC.STCstatic | STC.STCconst), parent.isModule(), parent.isTemplateInstance()); | |
| 735 printf("parent = '%s'\n", parent.toChars()); | |
| 736 } | |
| 737 if (storage_class & STC.STCmanifest) | |
| 738 return false; | |
| 739 | |
| 740 Dsymbol parent = this.toParent(); | |
| 741 if (!parent && !(storage_class & STC.STCstatic)) | |
| 742 { | |
| 743 error("forward referenced"); | |
| 744 type = Type.terror; | |
| 745 return false; | |
| 746 } | |
| 747 | |
| 748 return canTakeAddressOf() && (storage_class & (STC.STCstatic | STC.STCextern | STC.STCtls | STC.STCgshared) || toParent().isModule() || toParent().isTemplateInstance()); | |
| 749 } | |
| 750 | |
| 72 | 751 override bool isThreadlocal() |
| 0 | 752 { |
| 753 //printf("VarDeclaration.isThreadlocal(%p, '%s')\n", this, toChars()); | |
| 754 static if (false) { /// || TARGET_OSX | |
| 755 /* To be thread-local, must use the __thread storage class. | |
| 756 * BUG: OSX doesn't support thread local yet. | |
| 757 */ | |
| 758 return isDataseg() && (storage_class & (STC.STCtls | STC.STCconst | STC.STCimmutable | STC.STCshared | STC.STCgshared)) == STC.STCtls; | |
| 759 } else { | |
| 760 /* Data defaults to being thread-local. It is not thread-local | |
| 761 * if it is immutable, const or shared. | |
| 762 */ | |
| 763 bool i = isDataseg() && !(storage_class & (STC.STCimmutable | STC.STCconst | STC.STCshared | STC.STCgshared)); | |
| 764 //printf("\treturn %d\n", i); | |
| 765 return i; | |
| 766 } | |
| 767 } | |
| 768 | |
| 72 | 769 override bool hasPointers() |
| 0 | 770 { |
| 771 //printf("VarDeclaration.hasPointers() %s, ty = %d\n", toChars(), type.ty); | |
| 772 return (!isDataseg() && type.hasPointers()); | |
| 773 } | |
| 774 | |
| 775 version (DMDV2) { | |
| 776 bool canTakeAddressOf() | |
| 777 { | |
| 778 static if (false) { | |
| 779 /* Global variables and struct/class fields of the form: | |
| 780 * const int x = 3; | |
| 781 * are not stored and hence cannot have their address taken. | |
| 782 */ | |
| 783 if ((isConst() || isInvariant()) && (storage_class & STC.STCinit) && (!(storage_class & (STC.STCstatic | STC.STCextern)) || (storage_class & STC.STCfield)) && | |
| 784 (!parent || toParent().isModule() || toParent().isTemplateInstance()) && type.toBasetype().isTypeBasic()) | |
| 785 { | |
| 786 return false; | |
| 787 } | |
| 788 } else { | |
| 789 if (storage_class & STC.STCmanifest) | |
| 790 return false; | |
| 791 } | |
| 792 return true; | |
| 793 } | |
| 794 | |
|
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795 /****************************************** |
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796 * Return TRUE if variable needs to call the destructor. |
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797 */ |
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798 bool needsAutoDtor() |
| 0 | 799 { |
|
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800 //printf("VarDeclaration.needsAutoDtor() %s\n", toChars()); |
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801 |
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802 if (noauto || storage_class & STCnodtor) |
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803 return false; |
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804 |
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805 // Destructors for structs and arrays of structs |
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806 Type tv = type.toBasetype(); |
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807 while (tv.ty == Tsarray) |
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808 { |
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809 TypeSArray ta = cast(TypeSArray)tv; |
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810 tv = tv.nextOf().toBasetype(); |
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811 } |
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812 if (tv.ty == Tstruct) |
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813 { |
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814 TypeStruct ts = cast(TypeStruct)tv; |
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815 StructDeclaration sd = ts.sym; |
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816 if (sd.dtor) |
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817 return true; |
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818 } |
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819 |
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820 // Destructors for classes |
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821 if (storage_class & (STCauto | STCscope)) |
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822 { |
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823 if (type.isClassHandle()) |
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824 return true; |
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825 } |
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826 return false; |
| 0 | 827 } |
| 828 } | |
| 829 | |
| 830 /****************************************** | |
| 831 * If a variable has an auto destructor call, return call for it. | |
| 832 * Otherwise, return null. | |
| 833 */ | |
| 834 Expression callAutoDtor(Scope sc) | |
| 835 { | |
| 836 Expression e = null; | |
| 837 | |
| 838 //printf("VarDeclaration.callAutoDtor() %s\n", toChars()); | |
| 839 | |
| 840 if (noauto || storage_class & STC.STCnodtor) | |
| 841 return null; | |
| 842 | |
| 843 // Destructors for structs and arrays of structs | |
| 844 bool array = false; | |
| 845 Type tv = type.toBasetype(); | |
| 846 while (tv.ty == TY.Tsarray) | |
| 847 { | |
| 848 TypeSArray ta = cast(TypeSArray)tv; | |
| 849 array = true; | |
| 850 tv = tv.nextOf().toBasetype(); | |
| 851 } | |
| 852 if (tv.ty == TY.Tstruct) | |
| 853 { | |
| 854 TypeStruct ts = cast(TypeStruct)tv; | |
| 855 StructDeclaration sd = ts.sym; | |
| 856 if (sd.dtor) | |
| 857 { | |
| 858 if (array) | |
| 859 { | |
| 860 // Typeinfo.destroy(cast(void*)&v); | |
| 861 Expression ea = new SymOffExp(loc, this, 0, 0); | |
| 862 ea = new CastExp(loc, ea, Type.tvoid.pointerTo()); | |
| 863 Expressions args = new Expressions(); | |
| 864 args.push(cast(void*)ea); | |
| 865 | |
| 866 Expression et = type.getTypeInfo(sc); | |
| 867 et = new DotIdExp(loc, et, Id.destroy); | |
| 868 | |
| 869 e = new CallExp(loc, et, args); | |
| 870 } | |
| 871 else | |
| 872 { | |
| 873 e = new VarExp(loc, this); | |
| 874 e = new DotVarExp(loc, e, sd.dtor, 0); | |
| 875 e = new CallExp(loc, e); | |
| 876 } | |
| 877 return e; | |
| 878 } | |
| 879 } | |
| 880 | |
| 881 // Destructors for classes | |
| 882 if (storage_class & (STC.STCauto | STC.STCscope)) | |
| 883 { | |
| 884 for (ClassDeclaration cd = type.isClassHandle(); cd; cd = cd.baseClass) | |
| 885 { | |
| 886 /* We can do better if there's a way with onstack | |
| 887 * classes to determine if there's no way the monitor | |
| 888 * could be set. | |
| 889 */ | |
| 890 //if (cd.isInterfaceDeclaration()) | |
| 891 //error("interface %s cannot be scope", cd.toChars()); | |
| 892 if (1 || onstack || cd.dtors.dim) // if any destructors | |
| 893 { | |
| 894 // delete this; | |
| 895 Expression ec = new VarExp(loc, this); | |
| 896 e = new DeleteExp(loc, ec); | |
| 897 e.type = Type.tvoid; | |
| 898 break; | |
| 899 } | |
| 900 } | |
| 901 } | |
| 902 return e; | |
| 903 } | |
| 904 | |
| 905 /**************************** | |
| 906 * Get ExpInitializer for a variable, if there is one. | |
| 907 */ | |
| 908 ExpInitializer getExpInitializer() | |
| 909 { | |
| 910 ExpInitializer ei; | |
| 911 | |
| 912 if (init) | |
| 913 ei = init.isExpInitializer(); | |
| 914 else | |
| 915 { | |
| 916 Expression e = type.defaultInit(loc); | |
| 917 if (e) | |
| 918 ei = new ExpInitializer(loc, e); | |
| 919 else | |
| 920 ei = null; | |
| 921 } | |
| 922 return ei; | |
| 923 } | |
| 924 | |
| 925 /******************************************* | |
| 926 * If variable has a constant expression initializer, get it. | |
| 927 * Otherwise, return null. | |
| 928 */ | |
| 929 Expression getConstInitializer() | |
| 930 { | |
| 931 if ((isConst() || isInvariant() || storage_class & STC.STCmanifest) && storage_class & STC.STCinit) | |
| 932 { | |
| 933 ExpInitializer ei = getExpInitializer(); | |
| 934 if (ei) | |
| 935 return ei.exp; | |
| 936 } | |
| 937 | |
| 938 return null; | |
| 939 } | |
| 940 | |
| 72 | 941 override void checkCtorConstInit() |
| 0 | 942 { |
| 943 static if (false) { /* doesn't work if more than one static ctor */ | |
| 944 if (ctorinit == 0 && isCtorinit() && !(storage_class & STCfield)) | |
| 945 error("missing initializer in static constructor for const variable"); | |
| 946 } | |
| 947 } | |
| 948 | |
| 949 /************************************ | |
| 950 * Check to see if this variable is actually in an enclosing function | |
| 951 * rather than the current one. | |
| 952 */ | |
| 953 void checkNestedReference(Scope sc, Loc loc) | |
| 954 { | |
| 955 if (parent && !isDataseg() && parent != sc.parent && !(storage_class & STC.STCmanifest)) | |
| 956 { | |
| 957 // The function that this variable is in | |
| 958 FuncDeclaration fdv = toParent().isFuncDeclaration(); | |
| 959 // The current function | |
| 960 FuncDeclaration fdthis = sc.parent.isFuncDeclaration(); | |
| 961 | |
| 962 if (fdv && fdthis && fdv !is fdthis) | |
| 963 { | |
| 964 if (loc.filename) | |
| 965 fdthis.getLevel(loc, fdv); | |
| 966 | |
|
77
ad4792a1cfd6
more D-ification container accessing
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
74
diff
changeset
|
967 foreach(FuncDeclaration f; nestedrefs) |
| 0 | 968 { |
| 969 if (f == fdthis) | |
| 970 goto L1; | |
| 971 } | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
972 nestedrefs.push(fdthis); |
| 0 | 973 L1: ; |
| 974 | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
975 foreach(s; fdv.closureVars) |
| 0 | 976 { |
| 977 if (s == this) | |
| 978 goto L2; | |
| 979 } | |
| 980 | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
981 fdv.closureVars.push(this); |
| 0 | 982 L2: ; |
| 983 | |
| 984 //printf("fdthis is %s\n", fdthis.toChars()); | |
| 985 //printf("var %s in function %s is nested ref\n", toChars(), fdv.toChars()); | |
| 986 } | |
| 987 } | |
| 988 } | |
| 989 | |
| 72 | 990 override Dsymbol toAlias() |
| 0 | 991 { |
| 992 //printf("VarDeclaration::toAlias('%s', this = %p, aliassym = %p)\n", toChars(), this, aliassym); | |
| 993 assert(this !is aliassym); | |
| 994 return aliassym ? aliassym.toAlias() : this; | |
| 995 } | |
| 996 | |
| 72 | 997 override Symbol* toSymbol() |
| 0 | 998 { |
| 999 //printf("VarDeclaration.toSymbol(%s)\n", toChars()); | |
| 1000 //if (needThis()) *(char*)0=0; | |
| 1001 assert(!needThis()); | |
| 1002 if (!csym) | |
| 1003 { | |
| 1004 Symbol* s; | |
| 1005 TYPE* t; | |
| 1006 string id; | |
| 1007 | |
| 1008 if (isDataseg()) | |
| 1009 id = mangle(); | |
| 1010 else | |
| 1011 id = ident.toChars(); | |
| 1012 | |
| 1013 s = symbol_calloc(toStringz(id)); | |
| 1014 | |
| 1015 if (storage_class & (STC.STCout | STC.STCref)) | |
| 1016 { | |
| 1017 if (global.params.symdebug && storage_class & STC.STCparameter) | |
| 1018 { | |
| 1019 t = type_alloc(TYM.TYnptr); // should be TYref, but problems in back end | |
| 1020 t.Tnext = type.toCtype(); | |
| 1021 t.Tnext.Tcount++; | |
| 1022 } | |
| 1023 else | |
| 1024 t = type_fake(TYM.TYnptr); | |
| 1025 } | |
| 1026 else if (storage_class & STC.STClazy) | |
| 1027 t = type_fake(TYM.TYdelegate); // Tdelegate as C type | |
| 1028 else if (isParameter()) | |
| 1029 t = type.toCParamtype(); | |
| 1030 else | |
| 1031 t = type.toCtype(); | |
| 1032 | |
| 1033 t.Tcount++; | |
| 1034 | |
| 1035 if (isDataseg()) | |
| 1036 { | |
| 1037 if (isThreadlocal()) | |
| 1038 { | |
| 1039 /* Thread local storage | |
| 1040 */ | |
| 1041 TYPE* ts = t; | |
| 1042 ts.Tcount++; // make sure a different t is allocated | |
| 1043 type_setty(&t, t.Tty | mTY.mTYthread); | |
| 1044 ts.Tcount--; | |
| 1045 | |
| 1046 if (global.params.vtls) | |
| 1047 { | |
| 1048 string p = loc.toChars(); | |
| 1049 writef("%s: %s is thread local\n", p ? p : "", toChars()); | |
| 1050 } | |
| 1051 } | |
| 1052 | |
| 1053 s.Sclass = SC.SCextern; | |
| 1054 s.Sfl = FL.FLextern; | |
| 1055 slist_add(s); | |
| 1056 } | |
| 1057 else | |
| 1058 { | |
| 1059 s.Sclass = SC.SCauto; | |
| 1060 s.Sfl = FL.FLauto; | |
| 1061 | |
| 1062 if (nestedrefs.dim) | |
| 1063 { | |
| 1064 /* Symbol is accessed by a nested function. Make sure | |
| 1065 * it is not put in a register, and that the optimizer | |
| 1066 * assumes it is modified across function calls and pointer | |
| 1067 * dereferences. | |
| 1068 */ | |
| 1069 //printf("\tnested ref, not register\n"); | |
| 1070 type_setcv(&t, t.Tty | mTY.mTYvolatile); | |
| 1071 } | |
| 1072 } | |
| 1073 | |
| 1074 mangle_t m = 0; | |
| 1075 switch (linkage) | |
| 1076 { | |
| 1077 case LINK.LINKwindows: | |
| 1078 m = mTYman.mTYman_std; | |
| 1079 break; | |
| 1080 | |
| 1081 case LINK.LINKpascal: | |
| 1082 m = mTYman.mTYman_pas; | |
| 1083 break; | |
| 1084 | |
| 1085 case LINK.LINKc: | |
| 1086 m = mTYman.mTYman_c; | |
| 1087 break; | |
| 1088 | |
| 1089 case LINK.LINKd: | |
| 1090 m = mTYman.mTYman_d; | |
| 1091 break; | |
| 1092 | |
| 1093 case LINK.LINKcpp: | |
| 1094 m = mTYman.mTYman_cpp; | |
| 1095 break; | |
| 1096 | |
| 1097 default: | |
| 1098 writef("linkage = %d\n", linkage); | |
| 1099 assert(0); | |
| 1100 } | |
| 1101 type_setmangle(&t, m); | |
| 1102 s.Stype = t; | |
| 1103 | |
| 1104 csym = s; | |
| 1105 } | |
| 1106 return csym; | |
| 1107 } | |
| 1108 | |
| 72 | 1109 override void toObjFile(int multiobj) // compile to .obj file |
| 0 | 1110 { |
| 1111 Symbol* s; | |
| 1112 uint sz; | |
| 1113 Dsymbol parent; | |
| 1114 | |
| 1115 //printf("VarDeclaration.toObjFile(%p '%s' type=%s) protection %d\n", this, toChars(), type.toChars(), protection); | |
| 1116 //printf("\talign = %d\n", type.alignsize()); | |
| 1117 | |
| 1118 if (aliassym) | |
| 1119 { | |
| 1120 toAlias().toObjFile(0); | |
| 1121 return; | |
| 1122 } | |
| 1123 | |
| 1124 version (DMDV2) { | |
| 1125 // Do not store variables we cannot take the address of | |
| 1126 if (!canTakeAddressOf()) | |
| 1127 { | |
| 1128 return; | |
| 1129 } | |
| 1130 } | |
| 1131 | |
| 1132 if (isDataseg() && !(storage_class & STC.STCextern)) | |
| 1133 { | |
| 1134 s = toSymbol(); | |
| 1135 sz = cast(uint)type.size(); | |
| 1136 | |
| 1137 parent = this.toParent(); | |
| 1138 /// version (DMDV1) { /* private statics should still get a global symbol, in case | |
| 1139 /// * another module inlines a function that references it. | |
| 1140 /// */ | |
| 1141 /// if (/*protection == PROT.PROTprivate ||*/ | |
| 1142 /// !parent || parent.ident == null || parent.isFuncDeclaration()) | |
| 1143 /// { | |
| 1144 /// s.Sclass = SC.SCstatic; | |
| 1145 /// } | |
| 1146 /// else | |
| 1147 /// } | |
| 1148 { | |
| 1149 if (storage_class & STC.STCcomdat) | |
| 1150 s.Sclass = SC.SCcomdat; | |
| 1151 else | |
| 1152 s.Sclass = SC.SCglobal; | |
| 1153 | |
| 1154 do | |
| 1155 { | |
| 1156 /* Global template data members need to be in comdat's | |
| 1157 * in case multiple .obj files instantiate the same | |
| 1158 * template with the same types. | |
| 1159 */ | |
| 1160 if (parent.isTemplateInstance() && !parent.isTemplateMixin()) | |
| 1161 { | |
| 1162 version (DMDV1) { | |
| 1163 /* These symbol constants have already been copied, | |
| 1164 * so no reason to output them. | |
| 1165 * Note that currently there is no way to take | |
| 1166 * the address of such a const. | |
| 1167 */ | |
| 1168 if (isConst() && type.toBasetype().ty != TY.Tsarray && init && init.isExpInitializer()) | |
| 1169 return; | |
| 1170 } | |
| 1171 s.Sclass = SC.SCcomdat; | |
| 1172 break; | |
| 1173 } | |
| 1174 parent = parent.parent; | |
| 1175 } while (parent); | |
| 1176 } | |
| 1177 | |
| 1178 s.Sfl = FL.FLdata; | |
| 1179 | |
| 1180 if (init) | |
| 1181 { | |
| 1182 s.Sdt = init.toDt(); | |
| 1183 | |
| 1184 // Look for static array that is block initialized | |
| 1185 Type tb; | |
| 1186 ExpInitializer ie = init.isExpInitializer(); | |
| 1187 | |
| 1188 tb = type.toBasetype(); | |
| 1189 if (tb.ty == TY.Tsarray && ie | |
| 1190 && !tb.nextOf().equals(ie.exp.type.toBasetype().nextOf()) | |
| 1191 && ie.exp.implicitConvTo(tb.nextOf())) | |
| 1192 { | |
| 1193 int dim = cast(int)(cast(TypeSArray)tb).dim.toInteger(); | |
| 1194 | |
| 1195 // Duplicate Sdt 'dim-1' times, as we already have the first one | |
| 1196 while (--dim > 0) | |
| 1197 { | |
| 1198 ie.exp.toDt(&s.Sdt); | |
| 1199 } | |
| 1200 } | |
| 1201 } | |
| 1202 else if (storage_class & STC.STCextern) | |
| 1203 { | |
| 1204 s.Sclass = SC.SCextern; | |
| 1205 s.Sfl = FL.FLextern; | |
| 1206 s.Sdt = null; | |
| 1207 // BUG: if isExport(), shouldn't we make it dllimport? | |
| 1208 return; | |
| 1209 } | |
| 1210 else | |
| 1211 { | |
| 1212 type.toDt(&s.Sdt); | |
| 1213 } | |
| 1214 dt_optimize(s.Sdt); | |
| 1215 | |
| 1216 // See if we can convert a comdat to a comdef, | |
| 1217 // which saves on exe file space. | |
| 1218 if (s.Sclass == SC.SCcomdat && | |
| 1219 s.Sdt && | |
| 1220 s.Sdt.dt == DT.DT_azeros && | |
| 1221 s.Sdt.DTnext is null && | |
| 1222 !isThreadlocal()) | |
| 1223 { | |
| 1224 s.Sclass = SC.SCglobal; | |
| 1225 s.Sdt.dt = DT.DT_common; | |
| 1226 } | |
| 1227 | |
| 1228 version (ELFOBJ_OR_MACHOBJ) { // Burton | |
| 1229 if (s.Sdt && s.Sdt.dt == DT.DT_azeros && s.Sdt.DTnext is null) | |
| 1230 s.Sseg = Segment.UDATA; | |
| 1231 else | |
| 1232 s.Sseg = Segment.DATA; | |
| 1233 } | |
| 1234 if (sz) | |
| 1235 { | |
| 1236 outdata(s); | |
| 1237 if (isExport()) | |
| 1238 obj_export(s, 0); | |
| 1239 } | |
| 1240 } | |
| 1241 } | |
| 1242 | |
| 72 | 1243 override int cvMember(ubyte* p) |
| 0 | 1244 { |
| 1245 assert(false); | |
| 1246 } | |
| 1247 | |
| 1248 // Eliminate need for dynamic_cast | |
| 72 | 1249 override VarDeclaration isVarDeclaration() { return this; } |
|
16
5c9b78899f5d
Implemented methods for Tuples, fixed some linking issues.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
1250 } |