Mercurial > projects > ddmd
annotate dmd/VarDeclaration.d @ 23:460959608115
Branch merge.
| author | Robert Clipsham <robert@octarineparrot.com> |
|---|---|
| date | Mon, 12 Apr 2010 17:00:08 +0100 |
| parents | 832f71e6f96c fd4acc376c45 |
| children | a8b50ff7f201 |
| 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; | |
| 16 import dmd.DsymbolExp; | |
| 17 import dmd.TypeSArray; | |
| 18 import dmd.IntegerExp; | |
| 19 import dmd.VarExp; | |
| 20 import dmd.AssignExp; | |
| 21 import dmd.TypeTypedef; | |
| 22 import dmd.ArrayInitializer; | |
| 23 import dmd.StructInitializer; | |
| 24 import dmd.NewExp; | |
| 25 import dmd.TupleDeclaration; | |
| 26 import dmd.AggregateDeclaration; | |
| 27 import dmd.InterfaceDeclaration; | |
| 28 import dmd.TemplateInstance; | |
| 29 import dmd.Id; | |
| 30 import dmd.Initializer; | |
| 31 import dmd.TypeStruct; | |
| 32 import dmd.TypeTuple; | |
| 33 import dmd.Argument; | |
| 34 import dmd.ExpInitializer; | |
| 35 import dmd.ArrayTypes; | |
| 36 import dmd.Dsymbol; | |
| 37 import dmd.Expression; | |
| 38 import dmd.Loc; | |
| 39 import dmd.STC; | |
| 40 import dmd.TOK; | |
| 41 import dmd.TupleExp; | |
| 42 import dmd.Global; | |
|
22
fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
16
diff
changeset
|
43 import dmd.Module; |
| 0 | 44 import dmd.FuncDeclaration; |
| 45 import dmd.Type; | |
| 46 import dmd.TY; | |
| 47 import dmd.LINK; | |
| 48 import dmd.Scope; | |
| 49 import dmd.Identifier; | |
| 50 import dmd.OutBuffer; | |
| 51 import dmd.HdrGenState; | |
| 52 import dmd.PROT; | |
| 53 | |
| 54 import dmd.backend.Symbol; | |
| 55 import dmd.backend.TYM; | |
| 56 import dmd.backend.FL; | |
| 57 import dmd.backend.DT; | |
| 58 import dmd.backend.mTY; | |
| 59 import dmd.backend.SC; | |
| 60 import dmd.backend.mTYman; | |
| 61 import dmd.backend.TYPE; | |
| 62 import dmd.backend.Util; | |
| 63 import dmd.backend.LIST; | |
| 64 | |
| 65 import std.stdio : writef; | |
| 66 import std.string : toStringz; | |
| 67 | |
| 68 class VarDeclaration : Declaration | |
| 69 { | |
| 70 Initializer init; | |
| 71 uint offset; | |
| 72 bool noauto; // no auto semantics | |
| 73 version (DMDV2) { | |
| 74 FuncDeclarations nestedrefs; // referenced by these lexically nested functions | |
| 75 } else { | |
| 76 int nestedref; // referenced by a lexically nested function | |
| 77 } | |
| 78 int ctorinit; // it has been initialized in a ctor | |
| 79 int onstack; // 1: it has been allocated on the stack | |
| 80 // 2: on stack, run destructor anyway | |
| 81 int canassign; // it can be assigned to | |
| 82 Dsymbol aliassym; // if redone as alias to another symbol | |
| 83 Expression value; // when interpreting, this is the value | |
| 84 // (null if value not determinable) | |
| 85 version (DMDV2) { | |
| 86 VarDeclaration rundtor; // if !null, rundtor is tested at runtime to see | |
| 87 // if the destructor should be run. Used to prevent | |
| 88 // dtor calls on postblitted vars | |
| 89 } | |
| 90 | |
| 91 this(Loc loc, Type type, Identifier id, Initializer init) | |
| 92 { | |
| 93 super(id); | |
| 94 | |
| 95 debug { | |
| 96 if (!type && !init) | |
| 97 { | |
| 98 writef("VarDeclaration('%s')\n", id.toChars()); | |
| 99 //*(char*)0=0; | |
| 100 } | |
| 101 } | |
| 102 assert(type || init); | |
| 103 this.type = type; | |
| 104 this.init = init; | |
| 105 this.loc = loc; | |
| 106 | |
| 107 nestedrefs = new FuncDeclarations(); | |
| 108 } | |
| 109 | |
| 110 Dsymbol syntaxCopy(Dsymbol s) | |
| 111 { | |
| 112 //printf("VarDeclaration.syntaxCopy(%s)\n", toChars()); | |
| 113 | |
| 114 VarDeclaration sv; | |
| 115 if (s) | |
| 116 { | |
| 117 sv = cast(VarDeclaration)s; | |
| 118 } | |
| 119 else | |
| 120 { | |
| 121 Initializer init = null; | |
| 122 if (this.init) | |
| 123 { | |
| 124 init = this.init.syntaxCopy(); | |
| 125 //init.isExpInitializer().exp.print(); | |
| 126 //init.isExpInitializer().exp.dump(0); | |
| 127 } | |
| 128 | |
| 129 sv = new VarDeclaration(loc, type ? type.syntaxCopy() : null, ident, init); | |
| 130 sv.storage_class = storage_class; | |
| 131 } | |
| 132 | |
| 133 version (_DH) { | |
| 134 // Syntax copy for header file | |
| 135 if (!htype) // Don't overwrite original | |
| 136 { | |
| 137 if (type) // Make copy for both old and new instances | |
| 138 { htype = type.syntaxCopy(); | |
| 139 sv.htype = type.syntaxCopy(); | |
| 140 } | |
| 141 } | |
| 142 else // Make copy of original for new instance | |
| 143 sv.htype = htype.syntaxCopy(); | |
| 144 if (!hinit) | |
| 145 { | |
| 146 if (init) | |
| 147 { | |
| 148 hinit = init.syntaxCopy(); | |
| 149 sv.hinit = init.syntaxCopy(); | |
| 150 } | |
| 151 } | |
| 152 else | |
| 153 sv.hinit = hinit.syntaxCopy(); | |
| 154 } | |
| 155 return sv; | |
| 156 } | |
| 157 | |
| 158 void semantic(Scope sc) | |
| 159 { | |
| 160 static if (false) { | |
| 161 printf("VarDeclaration.semantic('%s', parent = '%s')\n", toChars(), sc.parent.toChars()); | |
| 162 printf(" type = %s\n", type ? type.toChars() : "null"); | |
| 163 printf(" stc = x%x\n", sc.stc); | |
| 164 printf(" storage_class = x%x\n", storage_class); | |
| 165 printf("linkage = %d\n", sc.linkage); | |
| 166 //if (strcmp(toChars(), "mul") == 0) halt(); | |
| 167 } | |
| 168 | |
| 169 storage_class |= sc.stc; | |
| 170 if (storage_class & STC.STCextern && init) | |
| 171 error("extern symbols cannot have initializers"); | |
| 172 | |
| 173 /* If auto type inference, do the inference | |
| 174 */ | |
| 175 int inferred = 0; | |
| 176 if (!type) | |
| 177 { | |
| 178 inuse++; | |
| 179 type = init.inferType(sc); | |
| 180 inuse--; | |
| 181 inferred = 1; | |
| 182 | |
| 183 /* This is a kludge to support the existing syntax for RAII | |
| 184 * declarations. | |
| 185 */ | |
| 186 storage_class &= ~STC.STCauto; | |
| 187 originalType = type; | |
| 188 } | |
| 189 else | |
| 190 { | |
| 191 if (!originalType) | |
| 192 originalType = type; | |
| 193 | |
| 194 type = type.semantic(loc, sc); | |
| 195 } | |
| 196 //printf(" semantic type = %s\n", type ? type.toChars() : "null"); | |
| 197 | |
| 198 type.checkDeprecated(loc, sc); | |
| 199 linkage = sc.linkage; | |
| 200 this.parent = sc.parent; | |
| 201 //printf("this = %p, parent = %p, '%s'\n", this, parent, parent.toChars()); | |
| 202 protection = sc.protection; | |
| 203 //printf("sc.stc = %x\n", sc.stc); | |
| 204 //printf("storage_class = x%x\n", storage_class); | |
| 205 | |
| 206 version (DMDV2) { | |
| 207 if (storage_class & STC.STCgshared && global.params.safe && !sc.module_.safe) | |
| 208 { | |
| 209 error("__gshared not allowed in safe mode; use shared"); | |
| 210 } | |
| 211 } | |
| 212 | |
| 213 Dsymbol parent = toParent(); | |
| 214 FuncDeclaration fd = parent.isFuncDeclaration(); | |
| 215 | |
| 216 Type tb = type.toBasetype(); | |
| 217 if (tb.ty == TY.Tvoid && !(storage_class & STC.STClazy)) | |
| 218 { error("voids have no value"); | |
| 219 type = Type.terror; | |
| 220 tb = type; | |
| 221 } | |
| 222 if (tb.ty == TY.Tfunction) | |
| 223 { error("cannot be declared to be a function"); | |
| 224 type = Type.terror; | |
| 225 tb = type; | |
| 226 } | |
| 227 if (tb.ty == TY.Tstruct) | |
| 228 { TypeStruct ts = cast(TypeStruct)tb; | |
| 229 | |
| 230 if (!ts.sym.members) | |
| 231 { | |
| 232 error("no definition of struct %s", ts.toChars()); | |
| 233 } | |
| 234 } | |
| 235 | |
| 236 if (tb.ty == TY.Ttuple) | |
| 237 { /* Instead, declare variables for each of the tuple elements | |
| 238 * and add those. | |
| 239 */ | |
| 240 TypeTuple tt = cast(TypeTuple)tb; | |
| 241 size_t nelems = Argument.dim(tt.arguments); | |
| 242 Objects exps = new Objects(); | |
| 243 exps.setDim(nelems); | |
| 244 Expression ie = init ? init.toExpression() : null; | |
| 245 | |
| 246 for (size_t i = 0; i < nelems; i++) | |
| 247 { Argument arg = Argument.getNth(tt.arguments, i); | |
| 248 | |
|
16
5c9b78899f5d
Implemented methods for Tuples, fixed some linking issues.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
249 OutBuffer buf = new OutBuffer(); |
| 0 | 250 buf.printf("_%s_field_%zu", ident.toChars(), i); |
| 251 buf.writeByte(0); | |
| 252 string name = buf.extractString(); | |
| 253 Identifier id = new Identifier(name, TOK.TOKidentifier); | |
| 254 | |
| 255 Expression einit = ie; | |
| 256 if (ie && ie.op == TOK.TOKtuple) | |
| 257 { einit = cast(Expression)(cast(TupleExp)ie).exps.data[i]; | |
| 258 } | |
| 259 Initializer ti = init; | |
| 260 if (einit) | |
| 261 { ti = new ExpInitializer(einit.loc, einit); | |
| 262 } | |
| 263 | |
| 264 VarDeclaration v = new VarDeclaration(loc, arg.type, id, ti); | |
| 265 //printf("declaring field %s of type %s\n", v.toChars(), v.type.toChars()); | |
| 266 v.semantic(sc); | |
| 267 | |
| 268 if (sc.scopesym) | |
| 269 { //printf("adding %s to %s\n", v.toChars(), sc.scopesym.toChars()); | |
| 270 if (sc.scopesym.members) | |
| 271 sc.scopesym.members.push(cast(void*)v); | |
| 272 } | |
| 273 | |
| 274 Expression e = new DsymbolExp(loc, v); | |
| 275 exps.data[i] = cast(void*)e; | |
| 276 } | |
| 277 TupleDeclaration v2 = new TupleDeclaration(loc, ident, exps); | |
| 278 v2.isexp = 1; | |
| 279 aliassym = v2; | |
| 280 return; | |
| 281 } | |
| 282 | |
| 283 Lagain: | |
| 284 /* Storage class can modify the type | |
| 285 */ | |
| 286 type = type.addStorageClass(storage_class); | |
| 287 | |
| 288 /* Adjust storage class to reflect type | |
| 289 */ | |
| 290 if (type.isConst()) | |
| 291 { storage_class |= STC.STCconst; | |
| 292 if (type.isShared()) | |
| 293 storage_class |= STC.STCshared; | |
| 294 } | |
| 295 else if (type.isInvariant()) | |
| 296 storage_class |= STC.STCimmutable; | |
| 297 else if (type.isShared()) | |
| 298 storage_class |= STC.STCshared; | |
| 299 | |
| 300 if (isSynchronized()) | |
| 301 { | |
| 302 error("variable %s cannot be synchronized", toChars()); | |
| 303 } | |
| 304 else if (isOverride()) | |
| 305 { | |
| 306 error("override cannot be applied to variable"); | |
| 307 } | |
| 308 else if (isAbstract()) | |
| 309 { | |
| 310 error("abstract cannot be applied to variable"); | |
| 311 } | |
| 312 else if (storage_class & STC.STCfinal) | |
| 313 { | |
| 314 error("final cannot be applied to variable"); | |
| 315 } | |
| 316 | |
| 317 if (storage_class & (STC.STCstatic | STC.STCextern | STC.STCmanifest | STC.STCtemplateparameter | STC.STCtls | STC.STCgshared)) | |
| 318 { | |
| 319 } | |
| 320 else | |
| 321 { | |
| 322 AggregateDeclaration aad = sc.anonAgg; | |
| 323 if (!aad) | |
| 324 aad = parent.isAggregateDeclaration(); | |
| 325 if (aad) | |
| 326 { | |
| 327 ///version (DMDV2) { | |
| 328 assert(!(storage_class & (STC.STCextern | STC.STCstatic | STC.STCtls | STC.STCgshared))); | |
| 329 | |
| 330 if (storage_class & (STC.STCconst | STC.STCimmutable) && init) | |
| 331 { | |
| 332 if (!type.toBasetype().isTypeBasic()) | |
| 333 storage_class |= STC.STCstatic; | |
| 334 } | |
| 335 else | |
| 336 ///} | |
| 337 aad.addField(sc, this); | |
| 338 } | |
| 339 | |
| 340 InterfaceDeclaration id = parent.isInterfaceDeclaration(); | |
| 341 if (id) | |
| 342 { | |
| 343 error("field not allowed in interface"); | |
| 344 } | |
| 345 | |
| 346 /* Templates cannot add fields to aggregates | |
| 347 */ | |
| 348 TemplateInstance ti = parent.isTemplateInstance(); | |
| 349 if (ti) | |
| 350 { | |
| 351 // Take care of nested templates | |
| 352 while (1) | |
| 353 { | |
| 354 TemplateInstance ti2 = ti.tempdecl.parent.isTemplateInstance(); | |
| 355 if (!ti2) | |
| 356 break; | |
| 357 ti = ti2; | |
| 358 } | |
| 359 | |
| 360 // If it's a member template | |
| 361 AggregateDeclaration ad = ti.tempdecl.isMember(); | |
| 362 if (ad && storage_class != STC.STCundefined) | |
| 363 { | |
| 364 error("cannot use template to add field to aggregate '%s'", ad.toChars()); | |
| 365 } | |
| 366 } | |
| 367 } | |
| 368 | |
| 369 version (DMDV2) { | |
| 370 if ((storage_class & (STC.STCref | STC.STCparameter | STC.STCforeach)) == STC.STCref && ident != Id.This) | |
| 371 { | |
| 372 error("only parameters or foreach declarations can be ref"); | |
| 373 } | |
| 374 } | |
| 375 | |
| 376 if (type.isauto() && !noauto) | |
| 377 { | |
| 378 if (storage_class & (STC.STCfield | STC.STCout | STC.STCref | STC.STCstatic | STC.STCmanifest | STC.STCtls | STC.STCgshared) || !fd) | |
| 379 { | |
| 380 error("globals, statics, fields, manifest constants, ref and out parameters cannot be scope"); | |
| 381 } | |
| 382 | |
| 383 if (!(storage_class & (STC.STCauto | STC.STCscope))) | |
| 384 { | |
| 385 if (!(storage_class & STC.STCparameter) && ident != Id.withSym) | |
| 386 error("reference to scope class must be scope"); | |
| 387 } | |
| 388 } | |
| 389 | |
| 390 if ((isConst() || isInvariant()) && !init && !fd) | |
| 391 { | |
| 392 // Initialize by constructor only | |
| 393 storage_class |= STC.STCctorinit; | |
| 394 } | |
| 395 | |
| 396 if (init) | |
| 397 storage_class |= STC.STCinit; // remember we had an explicit initializer | |
| 398 else if (storage_class & STC.STCmanifest) | |
| 399 error("manifest constants must have initializers"); | |
| 400 | |
| 401 TOK op = TOK.TOKconstruct; | |
| 402 if (!init && !sc.inunion && !isStatic() && fd && | |
| 403 (!(storage_class & (STC.STCfield | STC.STCin | STC.STCforeach | STC.STCparameter)) || (storage_class & STC.STCout)) && | |
| 404 type.size() != 0) | |
| 405 { | |
| 406 // Provide a default initializer | |
| 407 //printf("Providing default initializer for '%s'\n", toChars()); | |
| 408 if (type.ty == TY.Tstruct && | |
| 409 (cast(TypeStruct)type).sym.zeroInit) | |
| 410 { /* If a struct is all zeros, as a special case | |
| 411 * set it's initializer to the integer 0. | |
| 412 * In AssignExp.toElem(), we check for this and issue | |
| 413 * a memset() to initialize the struct. | |
| 414 * Must do same check in interpreter. | |
| 415 */ | |
| 416 Expression e = new IntegerExp(loc, 0, Type.tint32); | |
| 417 Expression e1; | |
| 418 e1 = new VarExp(loc, this); | |
| 419 e = new AssignExp(loc, e1, e); | |
| 420 e.op = TOK.TOKconstruct; | |
| 421 e.type = e1.type; // don't type check this, it would fail | |
| 422 init = new ExpInitializer(loc, e); | |
| 423 return; | |
| 424 } | |
| 425 else if (type.ty == TY.Ttypedef) | |
| 426 { TypeTypedef td = cast(TypeTypedef)type; | |
| 427 if (td.sym.init) | |
| 428 { init = td.sym.init; | |
| 429 ExpInitializer ie = init.isExpInitializer(); | |
| 430 if (ie) | |
| 431 // Make copy so we can modify it | |
| 432 init = new ExpInitializer(ie.loc, ie.exp); | |
| 433 } | |
| 434 else | |
| 435 init = getExpInitializer(); | |
| 436 } | |
| 437 else | |
| 438 { | |
| 439 init = getExpInitializer(); | |
| 440 } | |
| 441 // Default initializer is always a blit | |
| 442 op = TOK.TOKblit; | |
| 443 } | |
| 444 | |
| 445 if (init) | |
| 446 { | |
| 447 sc = sc.push(); | |
| 448 sc.stc &= ~(STC.STC_TYPECTOR | STC.STCpure | STC.STCnothrow | STC.STCref); | |
| 449 | |
| 450 ArrayInitializer ai = init.isArrayInitializer(); | |
| 451 if (ai && tb.ty == TY.Taarray) | |
| 452 { | |
| 453 init = ai.toAssocArrayInitializer(); | |
| 454 } | |
| 455 | |
| 456 StructInitializer si = init.isStructInitializer(); | |
| 457 ExpInitializer ei = init.isExpInitializer(); | |
| 458 | |
| 459 // See if initializer is a NewExp that can be allocated on the stack | |
| 460 if (ei && isScope() && ei.exp.op == TOK.TOKnew) | |
| 461 { NewExp ne = cast(NewExp)ei.exp; | |
| 462 if (!(ne.newargs && ne.newargs.dim)) | |
| 463 { ne.onstack = 1; | |
| 464 onstack = 1; | |
| 465 if (type.isBaseOf(ne.newtype.semantic(loc, sc), null)) | |
| 466 onstack = 2; | |
| 467 } | |
| 468 } | |
| 469 | |
| 470 // If inside function, there is no semantic3() call | |
| 471 if (sc.func) | |
| 472 { | |
| 473 // If local variable, use AssignExp to handle all the various | |
| 474 // possibilities. | |
| 475 if (fd && | |
| 476 !(storage_class & (STC.STCmanifest | STC.STCstatic | STC.STCtls | STC.STCgshared | STC.STCextern)) && | |
| 477 !init.isVoidInitializer()) | |
| 478 { | |
| 479 //printf("fd = '%s', var = '%s'\n", fd.toChars(), toChars()); | |
| 480 if (!ei) | |
| 481 { | |
| 482 Expression e = init.toExpression(); | |
| 483 if (!e) | |
| 484 { | |
| 485 init = init.semantic(sc, type); | |
| 486 e = init.toExpression(); | |
| 487 if (!e) | |
| 488 { error("is not a static and cannot have static initializer"); | |
| 489 return; | |
| 490 } | |
| 491 } | |
| 492 ei = new ExpInitializer(init.loc, e); | |
| 493 init = ei; | |
| 494 } | |
| 495 | |
| 496 Expression e1 = new VarExp(loc, this); | |
| 497 | |
| 498 Type t = type.toBasetype(); | |
| 499 if (t.ty == TY.Tsarray && !(storage_class & (STC.STCref | STC.STCout))) | |
| 500 { | |
| 501 ei.exp = ei.exp.semantic(sc); | |
| 502 if (!ei.exp.implicitConvTo(type)) | |
| 503 { | |
| 504 int dim = cast(int)(cast(TypeSArray)t).dim.toInteger(); /// | |
| 505 // If multidimensional static array, treat as one large array | |
| 506 while (1) | |
| 507 { | |
| 508 t = t.nextOf().toBasetype(); | |
| 509 if (t.ty != TY.Tsarray) | |
| 510 break; | |
| 511 dim *= (cast(TypeSArray)t).dim.toInteger(); | |
| 512 e1.type = new TypeSArray(t.nextOf(), new IntegerExp(Loc(0), dim, Type.tindex)); | |
| 513 } | |
| 514 } | |
| 515 e1 = new SliceExp(loc, e1, null, null); | |
| 516 } | |
| 517 else if (t.ty == TY.Tstruct) | |
| 518 { | |
| 519 ei.exp = ei.exp.semantic(sc); | |
| 520 version (DMDV2) { | |
| 521 /* Look to see if initializer is a call to the constructor | |
| 522 */ | |
| 523 StructDeclaration sd = (cast(TypeStruct)t).sym; | |
| 524 if (sd.ctor && // there are constructors | |
| 525 ei.exp.type.ty == TY.Tstruct && // rvalue is the same struct | |
| 526 (cast(TypeStruct)ei.exp.type).sym == sd && | |
| 527 ei.exp.op == TOK.TOKstar) | |
| 528 { | |
| 529 /* Look for form of constructor call which is: | |
| 530 * *__ctmp.ctor(arguments...) | |
| 531 */ | |
| 532 PtrExp pe = cast(PtrExp)ei.exp; | |
| 533 if (pe.e1.op == TOK.TOKcall) | |
| 534 { CallExp ce = cast(CallExp)pe.e1; | |
| 535 if (ce.e1.op == TOK.TOKdotvar) | |
| 536 { DotVarExp dve = cast(DotVarExp)ce.e1; | |
| 537 if (dve.var.isCtorDeclaration()) | |
| 538 { /* It's a constructor call, currently constructing | |
| 539 * a temporary __ctmp. | |
| 540 */ | |
| 541 /* Before calling the constructor, initialize | |
| 542 * variable with a bit copy of the default | |
| 543 * initializer | |
| 544 */ | |
| 545 Expression e = new AssignExp(loc, new VarExp(loc, this), t.defaultInit(loc)); | |
| 546 e.op = TOK.TOKblit; | |
| 547 e.type = t; | |
| 548 ei.exp = new CommaExp(loc, e, ei.exp); | |
| 549 | |
| 550 /* Replace __ctmp being constructed with e1 | |
| 551 */ | |
| 552 dve.e1 = e1; | |
| 553 return; | |
| 554 } | |
| 555 } | |
| 556 } | |
| 557 } | |
| 558 } | |
| 559 if (!ei.exp.implicitConvTo(type)) | |
| 560 { Type ti = ei.exp.type.toBasetype(); | |
| 561 // Don't cast away invariant or mutability in initializer | |
| 562 if (!(ti.ty == TY.Tstruct && t.toDsymbol(sc) == ti.toDsymbol(sc))) | |
| 563 ei.exp = new CastExp(loc, ei.exp, type); | |
| 564 } | |
| 565 } | |
| 566 ei.exp = new AssignExp(loc, e1, ei.exp); | |
| 567 ei.exp.op = op; | |
| 568 canassign++; | |
| 569 ei.exp = ei.exp.semantic(sc); | |
| 570 canassign--; | |
| 571 ei.exp.optimize(WANT.WANTvalue); | |
| 572 } | |
| 573 else | |
| 574 { | |
| 575 init = init.semantic(sc, type); | |
| 576 } | |
| 577 } | |
| 578 else if (storage_class & (STC.STCconst | STC.STCimmutable | STC.STCmanifest) || | |
| 579 type.isConst() || type.isInvariant()) | |
| 580 { | |
| 581 /* Because we may need the results of a const declaration in a | |
| 582 * subsequent type, such as an array dimension, before semantic2() | |
| 583 * gets ordinarily run, try to run semantic2() now. | |
| 584 * Ignore failure. | |
| 585 */ | |
| 586 | |
| 587 if (!global.errors && !inferred) | |
| 588 { | |
| 589 uint errors = global.errors; | |
| 590 global.gag++; | |
| 591 //printf("+gag\n"); | |
| 592 Expression e; | |
| 593 Initializer i2 = init; | |
| 594 inuse++; | |
| 595 if (ei) | |
| 596 { | |
| 597 e = ei.exp.syntaxCopy(); | |
| 598 e = e.semantic(sc); | |
| 599 e = e.implicitCastTo(sc, type); | |
| 600 } | |
| 601 else if (si || ai) | |
| 602 { i2 = init.syntaxCopy(); | |
| 603 i2 = i2.semantic(sc, type); | |
| 604 } | |
| 605 inuse--; | |
| 606 global.gag--; | |
| 607 //printf("-gag\n"); | |
| 608 if (errors != global.errors) // if errors happened | |
| 609 { | |
| 610 if (global.gag == 0) | |
| 611 global.errors = errors; // act as if nothing happened | |
| 612 version (DMDV2) { | |
| 613 /* Save scope for later use, to try again | |
| 614 */ | |
| 615 scope_ = new Scope(sc); | |
| 616 scope_.setNoFree(); | |
| 617 } | |
| 618 } | |
| 619 else if (ei) | |
| 620 { | |
| 621 if (isDataseg()) | |
| 622 /* static const/invariant does CTFE | |
| 623 */ | |
| 624 e = e.optimize(WANT.WANTvalue | WANT.WANTinterpret); | |
| 625 else | |
| 626 e = e.optimize(WANT.WANTvalue); | |
| 627 if (e.op == TOK.TOKint64 || e.op == TOK.TOKstring || e.op == TOK.TOKfloat64) | |
| 628 { | |
| 629 ei.exp = e; // no errors, keep result | |
| 630 } | |
| 631 ///version (DMDV2) { | |
| 632 else | |
| 633 { | |
| 634 /* Save scope for later use, to try again | |
| 635 */ | |
| 636 scope_ = new Scope(sc); | |
| 637 scope_.setNoFree(); | |
| 638 } | |
| 639 ///} | |
| 640 } | |
| 641 else | |
| 642 init = i2; // no errors, keep result | |
| 643 } | |
| 644 } | |
| 645 sc = sc.pop(); | |
| 646 } | |
| 647 } | |
| 648 | |
| 649 void semantic2(Scope sc) | |
| 650 { | |
| 651 //printf("VarDeclaration.semantic2('%s')\n", toChars()); | |
| 652 if (init && !toParent().isFuncDeclaration()) | |
| 653 { | |
| 654 inuse++; | |
| 655 static if (false) { | |
| 656 ExpInitializer ei = init.isExpInitializer(); | |
| 657 if (ei) | |
| 658 { | |
| 659 ei.exp.dump(0); | |
| 660 printf("type = %p\n", ei.exp.type); | |
| 661 } | |
| 662 } | |
| 663 init = init.semantic(sc, type); | |
| 664 inuse--; | |
| 665 } | |
| 666 } | |
| 667 | |
| 668 string kind() | |
| 669 { | |
| 670 return "variable"; | |
| 671 } | |
| 672 | |
| 673 void toCBuffer(OutBuffer buf, HdrGenState* hgs) | |
| 674 { | |
| 675 assert(false); | |
| 676 } | |
| 677 | |
| 678 version (_DH) { | |
| 679 Type htype; | |
| 680 Initializer hinit; | |
| 681 } | |
| 682 bool needThis() | |
| 683 { | |
| 684 //printf("VarDeclaration.needThis(%s, x%x)\n", toChars(), storage_class); | |
| 685 return (storage_class & STC.STCfield) != 0; | |
| 686 } | |
| 687 | |
| 688 bool isImportedSymbol() | |
| 689 { | |
| 690 if (protection == PROT.PROTexport && !init && (storage_class & STC.STCstatic || parent.isModule())) | |
| 691 return true; | |
| 692 | |
| 693 return false; | |
| 694 } | |
| 695 | |
| 696 bool isDataseg() | |
| 697 { | |
| 698 static if (false) { | |
| 699 printf("VarDeclaration.isDataseg(%p, '%s')\n", this, toChars()); | |
| 700 printf("%x, %p, %p\n", storage_class & (STC.STCstatic | STC.STCconst), parent.isModule(), parent.isTemplateInstance()); | |
| 701 printf("parent = '%s'\n", parent.toChars()); | |
| 702 } | |
| 703 if (storage_class & STC.STCmanifest) | |
| 704 return false; | |
| 705 | |
| 706 Dsymbol parent = this.toParent(); | |
| 707 if (!parent && !(storage_class & STC.STCstatic)) | |
| 708 { | |
| 709 error("forward referenced"); | |
| 710 type = Type.terror; | |
| 711 return false; | |
| 712 } | |
| 713 | |
| 714 return canTakeAddressOf() && (storage_class & (STC.STCstatic | STC.STCextern | STC.STCtls | STC.STCgshared) || toParent().isModule() || toParent().isTemplateInstance()); | |
| 715 } | |
| 716 | |
| 717 bool isThreadlocal() | |
| 718 { | |
| 719 //printf("VarDeclaration.isThreadlocal(%p, '%s')\n", this, toChars()); | |
| 720 static if (false) { /// || TARGET_OSX | |
| 721 /* To be thread-local, must use the __thread storage class. | |
| 722 * BUG: OSX doesn't support thread local yet. | |
| 723 */ | |
| 724 return isDataseg() && (storage_class & (STC.STCtls | STC.STCconst | STC.STCimmutable | STC.STCshared | STC.STCgshared)) == STC.STCtls; | |
| 725 } else { | |
| 726 /* Data defaults to being thread-local. It is not thread-local | |
| 727 * if it is immutable, const or shared. | |
| 728 */ | |
| 729 bool i = isDataseg() && !(storage_class & (STC.STCimmutable | STC.STCconst | STC.STCshared | STC.STCgshared)); | |
| 730 //printf("\treturn %d\n", i); | |
| 731 return i; | |
| 732 } | |
| 733 } | |
| 734 | |
| 735 bool hasPointers() | |
| 736 { | |
| 737 //printf("VarDeclaration.hasPointers() %s, ty = %d\n", toChars(), type.ty); | |
| 738 return (!isDataseg() && type.hasPointers()); | |
| 739 } | |
| 740 | |
| 741 version (DMDV2) { | |
| 742 bool canTakeAddressOf() | |
| 743 { | |
| 744 static if (false) { | |
| 745 /* Global variables and struct/class fields of the form: | |
| 746 * const int x = 3; | |
| 747 * are not stored and hence cannot have their address taken. | |
| 748 */ | |
| 749 if ((isConst() || isInvariant()) && (storage_class & STC.STCinit) && (!(storage_class & (STC.STCstatic | STC.STCextern)) || (storage_class & STC.STCfield)) && | |
| 750 (!parent || toParent().isModule() || toParent().isTemplateInstance()) && type.toBasetype().isTypeBasic()) | |
| 751 { | |
| 752 return false; | |
| 753 } | |
| 754 } else { | |
| 755 if (storage_class & STC.STCmanifest) | |
| 756 return false; | |
| 757 } | |
| 758 return true; | |
| 759 } | |
| 760 | |
|
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761 /****************************************** |
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762 * Return TRUE if variable needs to call the destructor. |
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763 */ |
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764 bool needsAutoDtor() |
| 0 | 765 { |
|
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766 //printf("VarDeclaration.needsAutoDtor() %s\n", toChars()); |
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767 |
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768 if (noauto || storage_class & STCnodtor) |
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769 return false; |
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|
770 |
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771 // Destructors for structs and arrays of structs |
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772 Type tv = type.toBasetype(); |
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773 while (tv.ty == Tsarray) |
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774 { |
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775 TypeSArray ta = cast(TypeSArray)tv; |
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776 tv = tv.nextOf().toBasetype(); |
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777 } |
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778 if (tv.ty == Tstruct) |
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779 { |
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780 TypeStruct ts = cast(TypeStruct)tv; |
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781 StructDeclaration sd = ts.sym; |
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782 if (sd.dtor) |
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783 return true; |
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784 } |
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|
785 |
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786 // Destructors for classes |
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787 if (storage_class & (STCauto | STCscope)) |
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788 { |
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789 if (type.isClassHandle()) |
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790 return true; |
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|
791 } |
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792 return false; |
| 0 | 793 } |
| 794 } | |
| 795 | |
| 796 /****************************************** | |
| 797 * If a variable has an auto destructor call, return call for it. | |
| 798 * Otherwise, return null. | |
| 799 */ | |
| 800 Expression callAutoDtor(Scope sc) | |
| 801 { | |
| 802 Expression e = null; | |
| 803 | |
| 804 //printf("VarDeclaration.callAutoDtor() %s\n", toChars()); | |
| 805 | |
| 806 if (noauto || storage_class & STC.STCnodtor) | |
| 807 return null; | |
| 808 | |
| 809 // Destructors for structs and arrays of structs | |
| 810 bool array = false; | |
| 811 Type tv = type.toBasetype(); | |
| 812 while (tv.ty == TY.Tsarray) | |
| 813 { | |
| 814 TypeSArray ta = cast(TypeSArray)tv; | |
| 815 array = true; | |
| 816 tv = tv.nextOf().toBasetype(); | |
| 817 } | |
| 818 if (tv.ty == TY.Tstruct) | |
| 819 { | |
| 820 TypeStruct ts = cast(TypeStruct)tv; | |
| 821 StructDeclaration sd = ts.sym; | |
| 822 if (sd.dtor) | |
| 823 { | |
| 824 if (array) | |
| 825 { | |
| 826 // Typeinfo.destroy(cast(void*)&v); | |
| 827 Expression ea = new SymOffExp(loc, this, 0, 0); | |
| 828 ea = new CastExp(loc, ea, Type.tvoid.pointerTo()); | |
| 829 Expressions args = new Expressions(); | |
| 830 args.push(cast(void*)ea); | |
| 831 | |
| 832 Expression et = type.getTypeInfo(sc); | |
| 833 et = new DotIdExp(loc, et, Id.destroy); | |
| 834 | |
| 835 e = new CallExp(loc, et, args); | |
| 836 } | |
| 837 else | |
| 838 { | |
| 839 e = new VarExp(loc, this); | |
| 840 e = new DotVarExp(loc, e, sd.dtor, 0); | |
| 841 e = new CallExp(loc, e); | |
| 842 } | |
| 843 return e; | |
| 844 } | |
| 845 } | |
| 846 | |
| 847 // Destructors for classes | |
| 848 if (storage_class & (STC.STCauto | STC.STCscope)) | |
| 849 { | |
| 850 for (ClassDeclaration cd = type.isClassHandle(); cd; cd = cd.baseClass) | |
| 851 { | |
| 852 /* We can do better if there's a way with onstack | |
| 853 * classes to determine if there's no way the monitor | |
| 854 * could be set. | |
| 855 */ | |
| 856 //if (cd.isInterfaceDeclaration()) | |
| 857 //error("interface %s cannot be scope", cd.toChars()); | |
| 858 if (1 || onstack || cd.dtors.dim) // if any destructors | |
| 859 { | |
| 860 // delete this; | |
| 861 Expression ec = new VarExp(loc, this); | |
| 862 e = new DeleteExp(loc, ec); | |
| 863 e.type = Type.tvoid; | |
| 864 break; | |
| 865 } | |
| 866 } | |
| 867 } | |
| 868 return e; | |
| 869 } | |
| 870 | |
| 871 /**************************** | |
| 872 * Get ExpInitializer for a variable, if there is one. | |
| 873 */ | |
| 874 ExpInitializer getExpInitializer() | |
| 875 { | |
| 876 ExpInitializer ei; | |
| 877 | |
| 878 if (init) | |
| 879 ei = init.isExpInitializer(); | |
| 880 else | |
| 881 { | |
| 882 Expression e = type.defaultInit(loc); | |
| 883 if (e) | |
| 884 ei = new ExpInitializer(loc, e); | |
| 885 else | |
| 886 ei = null; | |
| 887 } | |
| 888 return ei; | |
| 889 } | |
| 890 | |
| 891 /******************************************* | |
| 892 * If variable has a constant expression initializer, get it. | |
| 893 * Otherwise, return null. | |
| 894 */ | |
| 895 Expression getConstInitializer() | |
| 896 { | |
| 897 if ((isConst() || isInvariant() || storage_class & STC.STCmanifest) && storage_class & STC.STCinit) | |
| 898 { | |
| 899 ExpInitializer ei = getExpInitializer(); | |
| 900 if (ei) | |
| 901 return ei.exp; | |
| 902 } | |
| 903 | |
| 904 return null; | |
| 905 } | |
| 906 | |
| 907 void checkCtorConstInit() | |
| 908 { | |
| 909 static if (false) { /* doesn't work if more than one static ctor */ | |
| 910 if (ctorinit == 0 && isCtorinit() && !(storage_class & STCfield)) | |
| 911 error("missing initializer in static constructor for const variable"); | |
| 912 } | |
| 913 } | |
| 914 | |
| 915 /************************************ | |
| 916 * Check to see if this variable is actually in an enclosing function | |
| 917 * rather than the current one. | |
| 918 */ | |
| 919 void checkNestedReference(Scope sc, Loc loc) | |
| 920 { | |
| 921 if (parent && !isDataseg() && parent != sc.parent && !(storage_class & STC.STCmanifest)) | |
| 922 { | |
| 923 // The function that this variable is in | |
| 924 FuncDeclaration fdv = toParent().isFuncDeclaration(); | |
| 925 // The current function | |
| 926 FuncDeclaration fdthis = sc.parent.isFuncDeclaration(); | |
| 927 | |
| 928 if (fdv && fdthis && fdv !is fdthis) | |
| 929 { | |
| 930 if (loc.filename) | |
| 931 fdthis.getLevel(loc, fdv); | |
| 932 | |
| 933 for (int i = 0; i < nestedrefs.dim; i++) | |
| 934 { | |
| 935 FuncDeclaration f = cast(FuncDeclaration)nestedrefs.data[i]; | |
| 936 if (f == fdthis) | |
| 937 goto L1; | |
| 938 } | |
| 939 nestedrefs.push(cast(void*)fdthis); | |
| 940 L1: ; | |
| 941 | |
| 942 for (int i = 0; i < fdv.closureVars.dim; i++) | |
| 943 { | |
| 944 Dsymbol s = cast(Dsymbol)fdv.closureVars.data[i]; | |
| 945 if (s == this) | |
| 946 goto L2; | |
| 947 } | |
| 948 | |
| 949 fdv.closureVars.push(cast(void*)this); | |
| 950 L2: ; | |
| 951 | |
| 952 //printf("fdthis is %s\n", fdthis.toChars()); | |
| 953 //printf("var %s in function %s is nested ref\n", toChars(), fdv.toChars()); | |
| 954 } | |
| 955 } | |
| 956 } | |
| 957 | |
| 958 Dsymbol toAlias() | |
| 959 { | |
| 960 //printf("VarDeclaration::toAlias('%s', this = %p, aliassym = %p)\n", toChars(), this, aliassym); | |
| 961 assert(this !is aliassym); | |
| 962 return aliassym ? aliassym.toAlias() : this; | |
| 963 } | |
| 964 | |
| 965 Symbol* toSymbol() | |
| 966 { | |
| 967 //printf("VarDeclaration.toSymbol(%s)\n", toChars()); | |
| 968 //if (needThis()) *(char*)0=0; | |
| 969 assert(!needThis()); | |
| 970 if (!csym) | |
| 971 { | |
| 972 Symbol* s; | |
| 973 TYPE* t; | |
| 974 string id; | |
| 975 | |
| 976 if (isDataseg()) | |
| 977 id = mangle(); | |
| 978 else | |
| 979 id = ident.toChars(); | |
| 980 | |
| 981 s = symbol_calloc(toStringz(id)); | |
| 982 | |
| 983 if (storage_class & (STC.STCout | STC.STCref)) | |
| 984 { | |
| 985 if (global.params.symdebug && storage_class & STC.STCparameter) | |
| 986 { | |
| 987 t = type_alloc(TYM.TYnptr); // should be TYref, but problems in back end | |
| 988 t.Tnext = type.toCtype(); | |
| 989 t.Tnext.Tcount++; | |
| 990 } | |
| 991 else | |
| 992 t = type_fake(TYM.TYnptr); | |
| 993 } | |
| 994 else if (storage_class & STC.STClazy) | |
| 995 t = type_fake(TYM.TYdelegate); // Tdelegate as C type | |
| 996 else if (isParameter()) | |
| 997 t = type.toCParamtype(); | |
| 998 else | |
| 999 t = type.toCtype(); | |
| 1000 | |
| 1001 t.Tcount++; | |
| 1002 | |
| 1003 if (isDataseg()) | |
| 1004 { | |
| 1005 if (isThreadlocal()) | |
| 1006 { | |
| 1007 /* Thread local storage | |
| 1008 */ | |
| 1009 TYPE* ts = t; | |
| 1010 ts.Tcount++; // make sure a different t is allocated | |
| 1011 type_setty(&t, t.Tty | mTY.mTYthread); | |
| 1012 ts.Tcount--; | |
| 1013 | |
| 1014 if (global.params.vtls) | |
| 1015 { | |
| 1016 string p = loc.toChars(); | |
| 1017 writef("%s: %s is thread local\n", p ? p : "", toChars()); | |
| 1018 } | |
| 1019 } | |
| 1020 | |
| 1021 s.Sclass = SC.SCextern; | |
| 1022 s.Sfl = FL.FLextern; | |
| 1023 slist_add(s); | |
| 1024 } | |
| 1025 else | |
| 1026 { | |
| 1027 s.Sclass = SC.SCauto; | |
| 1028 s.Sfl = FL.FLauto; | |
| 1029 | |
| 1030 if (nestedrefs.dim) | |
| 1031 { | |
| 1032 /* Symbol is accessed by a nested function. Make sure | |
| 1033 * it is not put in a register, and that the optimizer | |
| 1034 * assumes it is modified across function calls and pointer | |
| 1035 * dereferences. | |
| 1036 */ | |
| 1037 //printf("\tnested ref, not register\n"); | |
| 1038 type_setcv(&t, t.Tty | mTY.mTYvolatile); | |
| 1039 } | |
| 1040 } | |
| 1041 | |
| 1042 mangle_t m = 0; | |
| 1043 switch (linkage) | |
| 1044 { | |
| 1045 case LINK.LINKwindows: | |
| 1046 m = mTYman.mTYman_std; | |
| 1047 break; | |
| 1048 | |
| 1049 case LINK.LINKpascal: | |
| 1050 m = mTYman.mTYman_pas; | |
| 1051 break; | |
| 1052 | |
| 1053 case LINK.LINKc: | |
| 1054 m = mTYman.mTYman_c; | |
| 1055 break; | |
| 1056 | |
| 1057 case LINK.LINKd: | |
| 1058 m = mTYman.mTYman_d; | |
| 1059 break; | |
| 1060 | |
| 1061 case LINK.LINKcpp: | |
| 1062 m = mTYman.mTYman_cpp; | |
| 1063 break; | |
| 1064 | |
| 1065 default: | |
| 1066 writef("linkage = %d\n", linkage); | |
| 1067 assert(0); | |
| 1068 } | |
| 1069 type_setmangle(&t, m); | |
| 1070 s.Stype = t; | |
| 1071 | |
| 1072 csym = s; | |
| 1073 } | |
| 1074 return csym; | |
| 1075 } | |
| 1076 | |
| 1077 void toObjFile(int multiobj) // compile to .obj file | |
| 1078 { | |
| 1079 Symbol* s; | |
| 1080 uint sz; | |
| 1081 Dsymbol parent; | |
| 1082 | |
| 1083 //printf("VarDeclaration.toObjFile(%p '%s' type=%s) protection %d\n", this, toChars(), type.toChars(), protection); | |
| 1084 //printf("\talign = %d\n", type.alignsize()); | |
| 1085 | |
| 1086 if (aliassym) | |
| 1087 { | |
| 1088 toAlias().toObjFile(0); | |
| 1089 return; | |
| 1090 } | |
| 1091 | |
| 1092 version (DMDV2) { | |
| 1093 // Do not store variables we cannot take the address of | |
| 1094 if (!canTakeAddressOf()) | |
| 1095 { | |
| 1096 return; | |
| 1097 } | |
| 1098 } | |
| 1099 | |
| 1100 if (isDataseg() && !(storage_class & STC.STCextern)) | |
| 1101 { | |
| 1102 s = toSymbol(); | |
| 1103 sz = cast(uint)type.size(); | |
| 1104 | |
| 1105 parent = this.toParent(); | |
| 1106 /// version (DMDV1) { /* private statics should still get a global symbol, in case | |
| 1107 /// * another module inlines a function that references it. | |
| 1108 /// */ | |
| 1109 /// if (/*protection == PROT.PROTprivate ||*/ | |
| 1110 /// !parent || parent.ident == null || parent.isFuncDeclaration()) | |
| 1111 /// { | |
| 1112 /// s.Sclass = SC.SCstatic; | |
| 1113 /// } | |
| 1114 /// else | |
| 1115 /// } | |
| 1116 { | |
| 1117 if (storage_class & STC.STCcomdat) | |
| 1118 s.Sclass = SC.SCcomdat; | |
| 1119 else | |
| 1120 s.Sclass = SC.SCglobal; | |
| 1121 | |
| 1122 do | |
| 1123 { | |
| 1124 /* Global template data members need to be in comdat's | |
| 1125 * in case multiple .obj files instantiate the same | |
| 1126 * template with the same types. | |
| 1127 */ | |
| 1128 if (parent.isTemplateInstance() && !parent.isTemplateMixin()) | |
| 1129 { | |
| 1130 version (DMDV1) { | |
| 1131 /* These symbol constants have already been copied, | |
| 1132 * so no reason to output them. | |
| 1133 * Note that currently there is no way to take | |
| 1134 * the address of such a const. | |
| 1135 */ | |
| 1136 if (isConst() && type.toBasetype().ty != TY.Tsarray && init && init.isExpInitializer()) | |
| 1137 return; | |
| 1138 } | |
| 1139 s.Sclass = SC.SCcomdat; | |
| 1140 break; | |
| 1141 } | |
| 1142 parent = parent.parent; | |
| 1143 } while (parent); | |
| 1144 } | |
| 1145 | |
| 1146 s.Sfl = FL.FLdata; | |
| 1147 | |
| 1148 if (init) | |
| 1149 { | |
| 1150 s.Sdt = init.toDt(); | |
| 1151 | |
| 1152 // Look for static array that is block initialized | |
| 1153 Type tb; | |
| 1154 ExpInitializer ie = init.isExpInitializer(); | |
| 1155 | |
| 1156 tb = type.toBasetype(); | |
| 1157 if (tb.ty == TY.Tsarray && ie | |
| 1158 && !tb.nextOf().equals(ie.exp.type.toBasetype().nextOf()) | |
| 1159 && ie.exp.implicitConvTo(tb.nextOf())) | |
| 1160 { | |
| 1161 int dim = cast(int)(cast(TypeSArray)tb).dim.toInteger(); | |
| 1162 | |
| 1163 // Duplicate Sdt 'dim-1' times, as we already have the first one | |
| 1164 while (--dim > 0) | |
| 1165 { | |
| 1166 ie.exp.toDt(&s.Sdt); | |
| 1167 } | |
| 1168 } | |
| 1169 } | |
| 1170 else if (storage_class & STC.STCextern) | |
| 1171 { | |
| 1172 s.Sclass = SC.SCextern; | |
| 1173 s.Sfl = FL.FLextern; | |
| 1174 s.Sdt = null; | |
| 1175 // BUG: if isExport(), shouldn't we make it dllimport? | |
| 1176 return; | |
| 1177 } | |
| 1178 else | |
| 1179 { | |
| 1180 type.toDt(&s.Sdt); | |
| 1181 } | |
| 1182 dt_optimize(s.Sdt); | |
| 1183 | |
| 1184 // See if we can convert a comdat to a comdef, | |
| 1185 // which saves on exe file space. | |
| 1186 if (s.Sclass == SC.SCcomdat && | |
| 1187 s.Sdt && | |
| 1188 s.Sdt.dt == DT.DT_azeros && | |
| 1189 s.Sdt.DTnext is null && | |
| 1190 !isThreadlocal()) | |
| 1191 { | |
| 1192 s.Sclass = SC.SCglobal; | |
| 1193 s.Sdt.dt = DT.DT_common; | |
| 1194 } | |
| 1195 | |
| 1196 version (ELFOBJ_OR_MACHOBJ) { // Burton | |
| 1197 if (s.Sdt && s.Sdt.dt == DT.DT_azeros && s.Sdt.DTnext is null) | |
| 1198 s.Sseg = Segment.UDATA; | |
| 1199 else | |
| 1200 s.Sseg = Segment.DATA; | |
| 1201 } | |
| 1202 if (sz) | |
| 1203 { | |
| 1204 outdata(s); | |
| 1205 if (isExport()) | |
| 1206 obj_export(s, 0); | |
| 1207 } | |
| 1208 } | |
| 1209 } | |
| 1210 | |
| 1211 int cvMember(ubyte* p) | |
| 1212 { | |
| 1213 assert(false); | |
| 1214 } | |
| 1215 | |
| 1216 // Eliminate need for dynamic_cast | |
| 1217 VarDeclaration isVarDeclaration() { return this; } | |
|
16
5c9b78899f5d
Implemented methods for Tuples, fixed some linking issues.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
1218 } |