Mercurial > projects > ddmd
annotate dmd/VarDeclaration.d @ 72:2e2a5c3f943a
reduced warnings by adding override to the methods
think this also normalizes different line endings used all over the place
| author | Trass3r |
|---|---|
| date | Sat, 28 Aug 2010 16:19:48 +0200 |
| parents | ee3a9f34dc48 |
| children | ef02e2e203c2 |
| 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
|
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
fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
16
diff
changeset
|
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; | |
| 54 | |
| 55 import dmd.backend.Symbol; | |
| 56 import dmd.backend.TYM; | |
| 57 import dmd.backend.FL; | |
| 58 import dmd.backend.DT; | |
| 59 import dmd.backend.mTY; | |
| 60 import dmd.backend.SC; | |
| 61 import dmd.backend.mTYman; | |
| 62 import dmd.backend.TYPE; | |
| 63 import dmd.backend.Util; | |
| 64 import dmd.backend.LIST; | |
| 65 | |
| 66 import std.stdio : writef; | |
| 67 import std.string : toStringz; | |
| 68 | |
| 69 class VarDeclaration : Declaration | |
| 70 { | |
| 71 Initializer init; | |
| 72 uint offset; | |
| 73 bool noauto; // no auto semantics | |
| 74 version (DMDV2) { | |
| 75 FuncDeclarations nestedrefs; // referenced by these lexically nested functions | |
| 76 } else { | |
| 77 int nestedref; // referenced by a lexically nested function | |
| 78 } | |
| 79 int ctorinit; // it has been initialized in a ctor | |
| 80 int onstack; // 1: it has been allocated on the stack | |
| 81 // 2: on stack, run destructor anyway | |
| 82 int canassign; // it can be assigned to | |
| 83 Dsymbol aliassym; // if redone as alias to another symbol | |
| 84 Expression value; // when interpreting, this is the value | |
| 85 // (null if value not determinable) | |
| 86 version (DMDV2) { | |
| 87 VarDeclaration rundtor; // if !null, rundtor is tested at runtime to see | |
| 88 // if the destructor should be run. Used to prevent | |
| 89 // dtor calls on postblitted vars | |
| 90 } | |
| 91 | |
| 92 this(Loc loc, Type type, Identifier id, Initializer init) | |
| 93 { | |
| 94 super(id); | |
| 95 | |
| 96 debug { | |
| 97 if (!type && !init) | |
| 98 { | |
| 99 writef("VarDeclaration('%s')\n", id.toChars()); | |
| 100 //*(char*)0=0; | |
| 101 } | |
| 102 } | |
| 103 assert(type || init); | |
| 104 this.type = type; | |
| 105 this.init = init; | |
| 106 this.loc = loc; | |
| 107 | |
| 108 nestedrefs = new FuncDeclarations(); | |
| 109 } | |
| 110 | |
| 72 | 111 override Dsymbol syntaxCopy(Dsymbol s) |
| 0 | 112 { |
| 113 //printf("VarDeclaration.syntaxCopy(%s)\n", toChars()); | |
| 114 | |
| 115 VarDeclaration sv; | |
| 116 if (s) | |
| 117 { | |
| 118 sv = cast(VarDeclaration)s; | |
| 119 } | |
| 120 else | |
| 121 { | |
| 122 Initializer init = null; | |
| 123 if (this.init) | |
| 124 { | |
| 125 init = this.init.syntaxCopy(); | |
| 126 //init.isExpInitializer().exp.print(); | |
| 127 //init.isExpInitializer().exp.dump(0); | |
| 128 } | |
| 129 | |
| 130 sv = new VarDeclaration(loc, type ? type.syntaxCopy() : null, ident, init); | |
| 131 sv.storage_class = storage_class; | |
| 132 } | |
| 133 | |
| 134 version (_DH) { | |
| 135 // Syntax copy for header file | |
| 136 if (!htype) // Don't overwrite original | |
| 137 { | |
| 138 if (type) // Make copy for both old and new instances | |
| 139 { htype = type.syntaxCopy(); | |
| 140 sv.htype = type.syntaxCopy(); | |
| 141 } | |
| 142 } | |
| 143 else // Make copy of original for new instance | |
| 144 sv.htype = htype.syntaxCopy(); | |
| 145 if (!hinit) | |
| 146 { | |
| 147 if (init) | |
| 148 { | |
| 149 hinit = init.syntaxCopy(); | |
| 150 sv.hinit = init.syntaxCopy(); | |
| 151 } | |
| 152 } | |
| 153 else | |
| 154 sv.hinit = hinit.syntaxCopy(); | |
| 155 } | |
| 156 return sv; | |
| 157 } | |
| 158 | |
| 72 | 159 override void semantic(Scope sc) |
| 0 | 160 { |
| 161 static if (false) { | |
| 162 printf("VarDeclaration.semantic('%s', parent = '%s')\n", toChars(), sc.parent.toChars()); | |
| 163 printf(" type = %s\n", type ? type.toChars() : "null"); | |
| 164 printf(" stc = x%x\n", sc.stc); | |
| 165 printf(" storage_class = x%x\n", storage_class); | |
| 166 printf("linkage = %d\n", sc.linkage); | |
| 167 //if (strcmp(toChars(), "mul") == 0) halt(); | |
| 168 } | |
| 169 | |
| 170 storage_class |= sc.stc; | |
| 171 if (storage_class & STC.STCextern && init) | |
| 172 error("extern symbols cannot have initializers"); | |
| 173 | |
| 174 /* If auto type inference, do the inference | |
| 175 */ | |
| 176 int inferred = 0; | |
| 177 if (!type) | |
| 178 { | |
| 179 inuse++; | |
| 180 type = init.inferType(sc); | |
| 181 inuse--; | |
| 182 inferred = 1; | |
| 183 | |
| 184 /* This is a kludge to support the existing syntax for RAII | |
| 185 * declarations. | |
| 186 */ | |
| 187 storage_class &= ~STC.STCauto; | |
| 188 originalType = type; | |
| 189 } | |
| 190 else | |
| 191 { | |
| 192 if (!originalType) | |
| 193 originalType = type; | |
| 194 | |
| 195 type = type.semantic(loc, sc); | |
| 196 } | |
| 197 //printf(" semantic type = %s\n", type ? type.toChars() : "null"); | |
| 198 | |
| 199 type.checkDeprecated(loc, sc); | |
| 200 linkage = sc.linkage; | |
| 201 this.parent = sc.parent; | |
| 202 //printf("this = %p, parent = %p, '%s'\n", this, parent, parent.toChars()); | |
| 203 protection = sc.protection; | |
| 204 //printf("sc.stc = %x\n", sc.stc); | |
| 205 //printf("storage_class = x%x\n", storage_class); | |
| 206 | |
| 207 version (DMDV2) { | |
| 208 if (storage_class & STC.STCgshared && global.params.safe && !sc.module_.safe) | |
| 209 { | |
| 210 error("__gshared not allowed in safe mode; use shared"); | |
| 211 } | |
| 212 } | |
| 213 | |
| 214 Dsymbol parent = toParent(); | |
| 215 FuncDeclaration fd = parent.isFuncDeclaration(); | |
| 216 | |
| 217 Type tb = type.toBasetype(); | |
| 218 if (tb.ty == TY.Tvoid && !(storage_class & STC.STClazy)) | |
| 219 { error("voids have no value"); | |
| 220 type = Type.terror; | |
| 221 tb = type; | |
| 222 } | |
| 223 if (tb.ty == TY.Tfunction) | |
| 224 { error("cannot be declared to be a function"); | |
| 225 type = Type.terror; | |
| 226 tb = type; | |
| 227 } | |
| 228 if (tb.ty == TY.Tstruct) | |
| 229 { TypeStruct ts = cast(TypeStruct)tb; | |
| 230 | |
| 231 if (!ts.sym.members) | |
| 232 { | |
| 233 error("no definition of struct %s", ts.toChars()); | |
| 234 } | |
| 235 } | |
| 236 | |
| 237 if (tb.ty == TY.Ttuple) | |
| 238 { /* Instead, declare variables for each of the tuple elements | |
| 239 * and add those. | |
| 240 */ | |
| 241 TypeTuple tt = cast(TypeTuple)tb; | |
| 242 size_t nelems = Argument.dim(tt.arguments); | |
| 243 Objects exps = new Objects(); | |
| 244 exps.setDim(nelems); | |
| 245 Expression ie = init ? init.toExpression() : null; | |
| 246 | |
| 247 for (size_t i = 0; i < nelems; i++) | |
| 248 { Argument arg = Argument.getNth(tt.arguments, i); | |
| 249 | |
|
16
5c9b78899f5d
Implemented methods for Tuples, fixed some linking issues.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
250 OutBuffer buf = new OutBuffer(); |
| 53 | 251 ///buf.printf("_%s_field_%zu", ident.toChars(), i); |
| 252 buf.printf("_%s_field_%s", ident.toChars(), i); | |
| 0 | 253 buf.writeByte(0); |
| 254 string name = buf.extractString(); | |
| 255 Identifier id = new Identifier(name, TOK.TOKidentifier); | |
| 256 | |
| 257 Expression einit = ie; | |
| 258 if (ie && ie.op == TOK.TOKtuple) | |
| 259 { einit = cast(Expression)(cast(TupleExp)ie).exps.data[i]; | |
| 260 } | |
| 261 Initializer ti = init; | |
| 262 if (einit) | |
| 263 { ti = new ExpInitializer(einit.loc, einit); | |
| 264 } | |
| 265 | |
| 266 VarDeclaration v = new VarDeclaration(loc, arg.type, id, ti); | |
| 267 //printf("declaring field %s of type %s\n", v.toChars(), v.type.toChars()); | |
| 268 v.semantic(sc); | |
| 269 | |
| 270 if (sc.scopesym) | |
| 271 { //printf("adding %s to %s\n", v.toChars(), sc.scopesym.toChars()); | |
| 272 if (sc.scopesym.members) | |
| 273 sc.scopesym.members.push(cast(void*)v); | |
| 274 } | |
| 275 | |
| 276 Expression e = new DsymbolExp(loc, v); | |
| 277 exps.data[i] = cast(void*)e; | |
| 278 } | |
| 279 TupleDeclaration v2 = new TupleDeclaration(loc, ident, exps); | |
| 280 v2.isexp = 1; | |
| 281 aliassym = v2; | |
| 282 return; | |
| 283 } | |
| 284 | |
| 285 Lagain: | |
| 286 /* Storage class can modify the type | |
| 287 */ | |
| 288 type = type.addStorageClass(storage_class); | |
| 289 | |
| 290 /* Adjust storage class to reflect type | |
| 291 */ | |
| 292 if (type.isConst()) | |
| 293 { storage_class |= STC.STCconst; | |
| 294 if (type.isShared()) | |
| 295 storage_class |= STC.STCshared; | |
| 296 } | |
| 297 else if (type.isInvariant()) | |
| 298 storage_class |= STC.STCimmutable; | |
| 299 else if (type.isShared()) | |
| 300 storage_class |= STC.STCshared; | |
| 301 | |
| 302 if (isSynchronized()) | |
| 303 { | |
| 304 error("variable %s cannot be synchronized", toChars()); | |
| 305 } | |
| 306 else if (isOverride()) | |
| 307 { | |
| 308 error("override cannot be applied to variable"); | |
| 309 } | |
| 310 else if (isAbstract()) | |
| 311 { | |
| 312 error("abstract cannot be applied to variable"); | |
| 313 } | |
| 314 else if (storage_class & STC.STCfinal) | |
| 315 { | |
| 316 error("final cannot be applied to variable"); | |
| 317 } | |
| 318 | |
| 319 if (storage_class & (STC.STCstatic | STC.STCextern | STC.STCmanifest | STC.STCtemplateparameter | STC.STCtls | STC.STCgshared)) | |
| 320 { | |
| 321 } | |
| 322 else | |
| 323 { | |
| 324 AggregateDeclaration aad = sc.anonAgg; | |
| 325 if (!aad) | |
| 326 aad = parent.isAggregateDeclaration(); | |
| 327 if (aad) | |
| 328 { | |
| 329 ///version (DMDV2) { | |
| 330 assert(!(storage_class & (STC.STCextern | STC.STCstatic | STC.STCtls | STC.STCgshared))); | |
| 331 | |
| 332 if (storage_class & (STC.STCconst | STC.STCimmutable) && init) | |
| 333 { | |
| 334 if (!type.toBasetype().isTypeBasic()) | |
| 335 storage_class |= STC.STCstatic; | |
| 336 } | |
| 337 else | |
| 338 ///} | |
| 339 aad.addField(sc, this); | |
| 340 } | |
| 341 | |
| 342 InterfaceDeclaration id = parent.isInterfaceDeclaration(); | |
| 343 if (id) | |
| 344 { | |
| 345 error("field not allowed in interface"); | |
| 346 } | |
| 347 | |
| 348 /* Templates cannot add fields to aggregates | |
| 349 */ | |
| 350 TemplateInstance ti = parent.isTemplateInstance(); | |
| 351 if (ti) | |
| 352 { | |
| 353 // Take care of nested templates | |
| 354 while (1) | |
| 355 { | |
| 356 TemplateInstance ti2 = ti.tempdecl.parent.isTemplateInstance(); | |
| 357 if (!ti2) | |
| 358 break; | |
| 359 ti = ti2; | |
| 360 } | |
| 361 | |
| 362 // If it's a member template | |
| 363 AggregateDeclaration ad = ti.tempdecl.isMember(); | |
| 364 if (ad && storage_class != STC.STCundefined) | |
| 365 { | |
| 366 error("cannot use template to add field to aggregate '%s'", ad.toChars()); | |
| 367 } | |
| 368 } | |
| 369 } | |
| 370 | |
| 371 version (DMDV2) { | |
| 372 if ((storage_class & (STC.STCref | STC.STCparameter | STC.STCforeach)) == STC.STCref && ident != Id.This) | |
| 373 { | |
| 374 error("only parameters or foreach declarations can be ref"); | |
| 375 } | |
| 376 } | |
| 377 | |
| 378 if (type.isauto() && !noauto) | |
| 379 { | |
| 380 if (storage_class & (STC.STCfield | STC.STCout | STC.STCref | STC.STCstatic | STC.STCmanifest | STC.STCtls | STC.STCgshared) || !fd) | |
| 381 { | |
| 382 error("globals, statics, fields, manifest constants, ref and out parameters cannot be scope"); | |
| 383 } | |
| 384 | |
| 385 if (!(storage_class & (STC.STCauto | STC.STCscope))) | |
| 386 { | |
| 387 if (!(storage_class & STC.STCparameter) && ident != Id.withSym) | |
| 388 error("reference to scope class must be scope"); | |
| 389 } | |
| 390 } | |
| 391 | |
| 392 if ((isConst() || isInvariant()) && !init && !fd) | |
| 393 { | |
| 394 // Initialize by constructor only | |
| 395 storage_class |= STC.STCctorinit; | |
| 396 } | |
| 397 | |
| 398 if (init) | |
| 399 storage_class |= STC.STCinit; // remember we had an explicit initializer | |
| 400 else if (storage_class & STC.STCmanifest) | |
| 401 error("manifest constants must have initializers"); | |
| 402 | |
| 403 TOK op = TOK.TOKconstruct; | |
| 404 if (!init && !sc.inunion && !isStatic() && fd && | |
| 405 (!(storage_class & (STC.STCfield | STC.STCin | STC.STCforeach | STC.STCparameter)) || (storage_class & STC.STCout)) && | |
| 406 type.size() != 0) | |
| 407 { | |
| 408 // Provide a default initializer | |
| 409 //printf("Providing default initializer for '%s'\n", toChars()); | |
| 410 if (type.ty == TY.Tstruct && | |
| 411 (cast(TypeStruct)type).sym.zeroInit) | |
| 412 { /* If a struct is all zeros, as a special case | |
| 413 * set it's initializer to the integer 0. | |
| 414 * In AssignExp.toElem(), we check for this and issue | |
| 415 * a memset() to initialize the struct. | |
| 416 * Must do same check in interpreter. | |
| 417 */ | |
| 418 Expression e = new IntegerExp(loc, 0, Type.tint32); | |
| 419 Expression e1; | |
| 420 e1 = new VarExp(loc, this); | |
| 421 e = new AssignExp(loc, e1, e); | |
| 422 e.op = TOK.TOKconstruct; | |
| 423 e.type = e1.type; // don't type check this, it would fail | |
| 424 init = new ExpInitializer(loc, e); | |
| 425 return; | |
| 426 } | |
| 427 else if (type.ty == TY.Ttypedef) | |
| 428 { TypeTypedef td = cast(TypeTypedef)type; | |
| 429 if (td.sym.init) | |
| 430 { init = td.sym.init; | |
| 431 ExpInitializer ie = init.isExpInitializer(); | |
| 432 if (ie) | |
| 433 // Make copy so we can modify it | |
| 434 init = new ExpInitializer(ie.loc, ie.exp); | |
| 435 } | |
| 436 else | |
| 437 init = getExpInitializer(); | |
| 438 } | |
| 439 else | |
| 440 { | |
| 441 init = getExpInitializer(); | |
| 442 } | |
| 443 // Default initializer is always a blit | |
| 444 op = TOK.TOKblit; | |
| 445 } | |
| 446 | |
| 447 if (init) | |
| 448 { | |
| 449 sc = sc.push(); | |
| 450 sc.stc &= ~(STC.STC_TYPECTOR | STC.STCpure | STC.STCnothrow | STC.STCref); | |
| 451 | |
| 452 ArrayInitializer ai = init.isArrayInitializer(); | |
| 453 if (ai && tb.ty == TY.Taarray) | |
| 454 { | |
| 455 init = ai.toAssocArrayInitializer(); | |
| 456 } | |
| 457 | |
| 458 StructInitializer si = init.isStructInitializer(); | |
| 459 ExpInitializer ei = init.isExpInitializer(); | |
| 460 | |
| 461 // See if initializer is a NewExp that can be allocated on the stack | |
| 462 if (ei && isScope() && ei.exp.op == TOK.TOKnew) | |
| 463 { NewExp ne = cast(NewExp)ei.exp; | |
| 464 if (!(ne.newargs && ne.newargs.dim)) | |
| 465 { ne.onstack = 1; | |
| 466 onstack = 1; | |
| 467 if (type.isBaseOf(ne.newtype.semantic(loc, sc), null)) | |
| 468 onstack = 2; | |
| 469 } | |
| 470 } | |
| 471 | |
| 472 // If inside function, there is no semantic3() call | |
| 473 if (sc.func) | |
| 474 { | |
| 475 // If local variable, use AssignExp to handle all the various | |
| 476 // possibilities. | |
| 477 if (fd && | |
| 478 !(storage_class & (STC.STCmanifest | STC.STCstatic | STC.STCtls | STC.STCgshared | STC.STCextern)) && | |
| 479 !init.isVoidInitializer()) | |
| 480 { | |
| 481 //printf("fd = '%s', var = '%s'\n", fd.toChars(), toChars()); | |
| 482 if (!ei) | |
| 483 { | |
| 484 Expression e = init.toExpression(); | |
| 485 if (!e) | |
| 486 { | |
| 487 init = init.semantic(sc, type); | |
| 488 e = init.toExpression(); | |
| 489 if (!e) | |
| 490 { error("is not a static and cannot have static initializer"); | |
| 491 return; | |
| 492 } | |
| 493 } | |
| 494 ei = new ExpInitializer(init.loc, e); | |
| 495 init = ei; | |
| 496 } | |
| 497 | |
| 498 Expression e1 = new VarExp(loc, this); | |
| 499 | |
| 500 Type t = type.toBasetype(); | |
| 501 if (t.ty == TY.Tsarray && !(storage_class & (STC.STCref | STC.STCout))) | |
| 502 { | |
| 503 ei.exp = ei.exp.semantic(sc); | |
| 504 if (!ei.exp.implicitConvTo(type)) | |
| 505 { | |
| 506 int dim = cast(int)(cast(TypeSArray)t).dim.toInteger(); /// | |
| 507 // If multidimensional static array, treat as one large array | |
| 508 while (1) | |
| 509 { | |
| 510 t = t.nextOf().toBasetype(); | |
| 511 if (t.ty != TY.Tsarray) | |
| 512 break; | |
| 513 dim *= (cast(TypeSArray)t).dim.toInteger(); | |
| 514 e1.type = new TypeSArray(t.nextOf(), new IntegerExp(Loc(0), dim, Type.tindex)); | |
| 515 } | |
| 516 } | |
| 517 e1 = new SliceExp(loc, e1, null, null); | |
| 518 } | |
| 519 else if (t.ty == TY.Tstruct) | |
| 520 { | |
| 521 ei.exp = ei.exp.semantic(sc); | |
| 522 version (DMDV2) { | |
| 523 /* Look to see if initializer is a call to the constructor | |
| 524 */ | |
| 525 StructDeclaration sd = (cast(TypeStruct)t).sym; | |
| 526 if (sd.ctor && // there are constructors | |
| 527 ei.exp.type.ty == TY.Tstruct && // rvalue is the same struct | |
| 528 (cast(TypeStruct)ei.exp.type).sym == sd && | |
| 529 ei.exp.op == TOK.TOKstar) | |
| 530 { | |
| 531 /* Look for form of constructor call which is: | |
| 532 * *__ctmp.ctor(arguments...) | |
| 533 */ | |
| 534 PtrExp pe = cast(PtrExp)ei.exp; | |
| 535 if (pe.e1.op == TOK.TOKcall) | |
| 536 { CallExp ce = cast(CallExp)pe.e1; | |
| 537 if (ce.e1.op == TOK.TOKdotvar) | |
| 538 { DotVarExp dve = cast(DotVarExp)ce.e1; | |
| 539 if (dve.var.isCtorDeclaration()) | |
| 540 { /* It's a constructor call, currently constructing | |
| 541 * a temporary __ctmp. | |
| 542 */ | |
| 543 /* Before calling the constructor, initialize | |
| 544 * variable with a bit copy of the default | |
| 545 * initializer | |
| 546 */ | |
| 547 Expression e = new AssignExp(loc, new VarExp(loc, this), t.defaultInit(loc)); | |
| 548 e.op = TOK.TOKblit; | |
| 549 e.type = t; | |
| 550 ei.exp = new CommaExp(loc, e, ei.exp); | |
| 551 | |
| 552 /* Replace __ctmp being constructed with e1 | |
| 553 */ | |
| 554 dve.e1 = e1; | |
| 555 return; | |
| 556 } | |
| 557 } | |
| 558 } | |
| 559 } | |
| 560 } | |
| 561 if (!ei.exp.implicitConvTo(type)) | |
| 562 { Type ti = ei.exp.type.toBasetype(); | |
| 563 // Don't cast away invariant or mutability in initializer | |
| 564 if (!(ti.ty == TY.Tstruct && t.toDsymbol(sc) == ti.toDsymbol(sc))) | |
| 565 ei.exp = new CastExp(loc, ei.exp, type); | |
| 566 } | |
| 567 } | |
| 568 ei.exp = new AssignExp(loc, e1, ei.exp); | |
| 569 ei.exp.op = op; | |
| 570 canassign++; | |
| 571 ei.exp = ei.exp.semantic(sc); | |
| 572 canassign--; | |
| 573 ei.exp.optimize(WANT.WANTvalue); | |
| 574 } | |
| 575 else | |
| 576 { | |
| 577 init = init.semantic(sc, type); | |
| 578 } | |
| 579 } | |
| 580 else if (storage_class & (STC.STCconst | STC.STCimmutable | STC.STCmanifest) || | |
| 581 type.isConst() || type.isInvariant()) | |
| 582 { | |
| 583 /* Because we may need the results of a const declaration in a | |
| 584 * subsequent type, such as an array dimension, before semantic2() | |
| 585 * gets ordinarily run, try to run semantic2() now. | |
| 586 * Ignore failure. | |
| 587 */ | |
| 588 | |
| 589 if (!global.errors && !inferred) | |
| 590 { | |
| 591 uint errors = global.errors; | |
| 592 global.gag++; | |
| 593 //printf("+gag\n"); | |
| 594 Expression e; | |
| 595 Initializer i2 = init; | |
| 596 inuse++; | |
| 597 if (ei) | |
| 598 { | |
| 599 e = ei.exp.syntaxCopy(); | |
| 600 e = e.semantic(sc); | |
| 601 e = e.implicitCastTo(sc, type); | |
| 602 } | |
| 603 else if (si || ai) | |
| 604 { i2 = init.syntaxCopy(); | |
| 605 i2 = i2.semantic(sc, type); | |
| 606 } | |
| 607 inuse--; | |
| 608 global.gag--; | |
| 609 //printf("-gag\n"); | |
| 610 if (errors != global.errors) // if errors happened | |
| 611 { | |
| 612 if (global.gag == 0) | |
| 613 global.errors = errors; // act as if nothing happened | |
| 614 version (DMDV2) { | |
| 615 /* Save scope for later use, to try again | |
| 616 */ | |
| 617 scope_ = new Scope(sc); | |
| 618 scope_.setNoFree(); | |
| 619 } | |
| 620 } | |
| 621 else if (ei) | |
| 622 { | |
| 623 if (isDataseg()) | |
| 624 /* static const/invariant does CTFE | |
| 625 */ | |
| 626 e = e.optimize(WANT.WANTvalue | WANT.WANTinterpret); | |
| 627 else | |
| 628 e = e.optimize(WANT.WANTvalue); | |
| 629 if (e.op == TOK.TOKint64 || e.op == TOK.TOKstring || e.op == TOK.TOKfloat64) | |
| 630 { | |
| 631 ei.exp = e; // no errors, keep result | |
| 632 } | |
| 633 ///version (DMDV2) { | |
| 634 else | |
| 635 { | |
| 636 /* Save scope for later use, to try again | |
| 637 */ | |
| 638 scope_ = new Scope(sc); | |
| 639 scope_.setNoFree(); | |
| 640 } | |
| 641 ///} | |
| 642 } | |
| 643 else | |
| 644 init = i2; // no errors, keep result | |
| 645 } | |
| 646 } | |
| 647 sc = sc.pop(); | |
| 648 } | |
| 649 } | |
| 650 | |
| 72 | 651 override void semantic2(Scope sc) |
| 0 | 652 { |
| 653 //printf("VarDeclaration.semantic2('%s')\n", toChars()); | |
| 654 if (init && !toParent().isFuncDeclaration()) | |
| 655 { | |
| 656 inuse++; | |
| 657 static if (false) { | |
| 658 ExpInitializer ei = init.isExpInitializer(); | |
| 659 if (ei) | |
| 660 { | |
| 661 ei.exp.dump(0); | |
| 662 printf("type = %p\n", ei.exp.type); | |
| 663 } | |
| 664 } | |
| 665 init = init.semantic(sc, type); | |
| 666 inuse--; | |
| 667 } | |
| 668 } | |
| 669 | |
| 72 | 670 override string kind() |
| 0 | 671 { |
| 672 return "variable"; | |
| 673 } | |
| 674 | |
| 72 | 675 override void toCBuffer(OutBuffer buf, HdrGenState* hgs) |
| 0 | 676 { |
|
68
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677 StorageClassDeclaration.stcToCBuffer(buf, storage_class); |
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678 |
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679 /* If changing, be sure and fix CompoundDeclarationStatement.toCBuffer() |
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680 * too. |
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681 */ |
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682 if (type) |
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683 type.toCBuffer(buf, ident, hgs); |
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684 else |
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685 buf.writestring(ident.toChars()); |
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686 if (init) |
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687 { |
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688 buf.writestring(" = "); |
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689 ///version (DMDV2) { |
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690 ExpInitializer ie = init.isExpInitializer(); |
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691 if (ie && (ie.exp.op == TOKconstruct || ie.exp.op == TOKblit)) |
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692 (cast(AssignExp)ie.exp).e2.toCBuffer(buf, hgs); |
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693 else |
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694 ///} |
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695 init.toCBuffer(buf, hgs); |
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696 } |
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697 buf.writeByte(';'); |
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698 buf.writenl(); |
| 0 | 699 } |
| 700 | |
| 701 version (_DH) { | |
| 702 Type htype; | |
| 703 Initializer hinit; | |
| 704 } | |
| 72 | 705 override bool needThis() |
| 0 | 706 { |
| 707 //printf("VarDeclaration.needThis(%s, x%x)\n", toChars(), storage_class); | |
| 708 return (storage_class & STC.STCfield) != 0; | |
| 709 } | |
| 710 | |
| 72 | 711 override bool isImportedSymbol() |
| 0 | 712 { |
| 713 if (protection == PROT.PROTexport && !init && (storage_class & STC.STCstatic || parent.isModule())) | |
| 714 return true; | |
| 715 | |
| 716 return false; | |
| 717 } | |
| 718 | |
| 72 | 719 override bool isDataseg() |
| 0 | 720 { |
| 721 static if (false) { | |
| 722 printf("VarDeclaration.isDataseg(%p, '%s')\n", this, toChars()); | |
| 723 printf("%x, %p, %p\n", storage_class & (STC.STCstatic | STC.STCconst), parent.isModule(), parent.isTemplateInstance()); | |
| 724 printf("parent = '%s'\n", parent.toChars()); | |
| 725 } | |
| 726 if (storage_class & STC.STCmanifest) | |
| 727 return false; | |
| 728 | |
| 729 Dsymbol parent = this.toParent(); | |
| 730 if (!parent && !(storage_class & STC.STCstatic)) | |
| 731 { | |
| 732 error("forward referenced"); | |
| 733 type = Type.terror; | |
| 734 return false; | |
| 735 } | |
| 736 | |
| 737 return canTakeAddressOf() && (storage_class & (STC.STCstatic | STC.STCextern | STC.STCtls | STC.STCgshared) || toParent().isModule() || toParent().isTemplateInstance()); | |
| 738 } | |
| 739 | |
| 72 | 740 override bool isThreadlocal() |
| 0 | 741 { |
| 742 //printf("VarDeclaration.isThreadlocal(%p, '%s')\n", this, toChars()); | |
| 743 static if (false) { /// || TARGET_OSX | |
| 744 /* To be thread-local, must use the __thread storage class. | |
| 745 * BUG: OSX doesn't support thread local yet. | |
| 746 */ | |
| 747 return isDataseg() && (storage_class & (STC.STCtls | STC.STCconst | STC.STCimmutable | STC.STCshared | STC.STCgshared)) == STC.STCtls; | |
| 748 } else { | |
| 749 /* Data defaults to being thread-local. It is not thread-local | |
| 750 * if it is immutable, const or shared. | |
| 751 */ | |
| 752 bool i = isDataseg() && !(storage_class & (STC.STCimmutable | STC.STCconst | STC.STCshared | STC.STCgshared)); | |
| 753 //printf("\treturn %d\n", i); | |
| 754 return i; | |
| 755 } | |
| 756 } | |
| 757 | |
| 72 | 758 override bool hasPointers() |
| 0 | 759 { |
| 760 //printf("VarDeclaration.hasPointers() %s, ty = %d\n", toChars(), type.ty); | |
| 761 return (!isDataseg() && type.hasPointers()); | |
| 762 } | |
| 763 | |
| 764 version (DMDV2) { | |
| 765 bool canTakeAddressOf() | |
| 766 { | |
| 767 static if (false) { | |
| 768 /* Global variables and struct/class fields of the form: | |
| 769 * const int x = 3; | |
| 770 * are not stored and hence cannot have their address taken. | |
| 771 */ | |
| 772 if ((isConst() || isInvariant()) && (storage_class & STC.STCinit) && (!(storage_class & (STC.STCstatic | STC.STCextern)) || (storage_class & STC.STCfield)) && | |
| 773 (!parent || toParent().isModule() || toParent().isTemplateInstance()) && type.toBasetype().isTypeBasic()) | |
| 774 { | |
| 775 return false; | |
| 776 } | |
| 777 } else { | |
| 778 if (storage_class & STC.STCmanifest) | |
| 779 return false; | |
| 780 } | |
| 781 return true; | |
| 782 } | |
| 783 | |
|
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784 /****************************************** |
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785 * Return TRUE if variable needs to call the destructor. |
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786 */ |
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787 bool needsAutoDtor() |
| 0 | 788 { |
|
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789 //printf("VarDeclaration.needsAutoDtor() %s\n", toChars()); |
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790 |
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791 if (noauto || storage_class & STCnodtor) |
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792 return false; |
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793 |
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794 // Destructors for structs and arrays of structs |
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795 Type tv = type.toBasetype(); |
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796 while (tv.ty == Tsarray) |
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797 { |
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798 TypeSArray ta = cast(TypeSArray)tv; |
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799 tv = tv.nextOf().toBasetype(); |
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800 } |
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801 if (tv.ty == Tstruct) |
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802 { |
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803 TypeStruct ts = cast(TypeStruct)tv; |
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804 StructDeclaration sd = ts.sym; |
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805 if (sd.dtor) |
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806 return true; |
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807 } |
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|
808 |
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|
809 // Destructors for classes |
|
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810 if (storage_class & (STCauto | STCscope)) |
|
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811 { |
|
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812 if (type.isClassHandle()) |
|
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|
813 return true; |
|
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|
814 } |
|
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815 return false; |
| 0 | 816 } |
| 817 } | |
| 818 | |
| 819 /****************************************** | |
| 820 * If a variable has an auto destructor call, return call for it. | |
| 821 * Otherwise, return null. | |
| 822 */ | |
| 823 Expression callAutoDtor(Scope sc) | |
| 824 { | |
| 825 Expression e = null; | |
| 826 | |
| 827 //printf("VarDeclaration.callAutoDtor() %s\n", toChars()); | |
| 828 | |
| 829 if (noauto || storage_class & STC.STCnodtor) | |
| 830 return null; | |
| 831 | |
| 832 // Destructors for structs and arrays of structs | |
| 833 bool array = false; | |
| 834 Type tv = type.toBasetype(); | |
| 835 while (tv.ty == TY.Tsarray) | |
| 836 { | |
| 837 TypeSArray ta = cast(TypeSArray)tv; | |
| 838 array = true; | |
| 839 tv = tv.nextOf().toBasetype(); | |
| 840 } | |
| 841 if (tv.ty == TY.Tstruct) | |
| 842 { | |
| 843 TypeStruct ts = cast(TypeStruct)tv; | |
| 844 StructDeclaration sd = ts.sym; | |
| 845 if (sd.dtor) | |
| 846 { | |
| 847 if (array) | |
| 848 { | |
| 849 // Typeinfo.destroy(cast(void*)&v); | |
| 850 Expression ea = new SymOffExp(loc, this, 0, 0); | |
| 851 ea = new CastExp(loc, ea, Type.tvoid.pointerTo()); | |
| 852 Expressions args = new Expressions(); | |
| 853 args.push(cast(void*)ea); | |
| 854 | |
| 855 Expression et = type.getTypeInfo(sc); | |
| 856 et = new DotIdExp(loc, et, Id.destroy); | |
| 857 | |
| 858 e = new CallExp(loc, et, args); | |
| 859 } | |
| 860 else | |
| 861 { | |
| 862 e = new VarExp(loc, this); | |
| 863 e = new DotVarExp(loc, e, sd.dtor, 0); | |
| 864 e = new CallExp(loc, e); | |
| 865 } | |
| 866 return e; | |
| 867 } | |
| 868 } | |
| 869 | |
| 870 // Destructors for classes | |
| 871 if (storage_class & (STC.STCauto | STC.STCscope)) | |
| 872 { | |
| 873 for (ClassDeclaration cd = type.isClassHandle(); cd; cd = cd.baseClass) | |
| 874 { | |
| 875 /* We can do better if there's a way with onstack | |
| 876 * classes to determine if there's no way the monitor | |
| 877 * could be set. | |
| 878 */ | |
| 879 //if (cd.isInterfaceDeclaration()) | |
| 880 //error("interface %s cannot be scope", cd.toChars()); | |
| 881 if (1 || onstack || cd.dtors.dim) // if any destructors | |
| 882 { | |
| 883 // delete this; | |
| 884 Expression ec = new VarExp(loc, this); | |
| 885 e = new DeleteExp(loc, ec); | |
| 886 e.type = Type.tvoid; | |
| 887 break; | |
| 888 } | |
| 889 } | |
| 890 } | |
| 891 return e; | |
| 892 } | |
| 893 | |
| 894 /**************************** | |
| 895 * Get ExpInitializer for a variable, if there is one. | |
| 896 */ | |
| 897 ExpInitializer getExpInitializer() | |
| 898 { | |
| 899 ExpInitializer ei; | |
| 900 | |
| 901 if (init) | |
| 902 ei = init.isExpInitializer(); | |
| 903 else | |
| 904 { | |
| 905 Expression e = type.defaultInit(loc); | |
| 906 if (e) | |
| 907 ei = new ExpInitializer(loc, e); | |
| 908 else | |
| 909 ei = null; | |
| 910 } | |
| 911 return ei; | |
| 912 } | |
| 913 | |
| 914 /******************************************* | |
| 915 * If variable has a constant expression initializer, get it. | |
| 916 * Otherwise, return null. | |
| 917 */ | |
| 918 Expression getConstInitializer() | |
| 919 { | |
| 920 if ((isConst() || isInvariant() || storage_class & STC.STCmanifest) && storage_class & STC.STCinit) | |
| 921 { | |
| 922 ExpInitializer ei = getExpInitializer(); | |
| 923 if (ei) | |
| 924 return ei.exp; | |
| 925 } | |
| 926 | |
| 927 return null; | |
| 928 } | |
| 929 | |
| 72 | 930 override void checkCtorConstInit() |
| 0 | 931 { |
| 932 static if (false) { /* doesn't work if more than one static ctor */ | |
| 933 if (ctorinit == 0 && isCtorinit() && !(storage_class & STCfield)) | |
| 934 error("missing initializer in static constructor for const variable"); | |
| 935 } | |
| 936 } | |
| 937 | |
| 938 /************************************ | |
| 939 * Check to see if this variable is actually in an enclosing function | |
| 940 * rather than the current one. | |
| 941 */ | |
| 942 void checkNestedReference(Scope sc, Loc loc) | |
| 943 { | |
| 944 if (parent && !isDataseg() && parent != sc.parent && !(storage_class & STC.STCmanifest)) | |
| 945 { | |
| 946 // The function that this variable is in | |
| 947 FuncDeclaration fdv = toParent().isFuncDeclaration(); | |
| 948 // The current function | |
| 949 FuncDeclaration fdthis = sc.parent.isFuncDeclaration(); | |
| 950 | |
| 951 if (fdv && fdthis && fdv !is fdthis) | |
| 952 { | |
| 953 if (loc.filename) | |
| 954 fdthis.getLevel(loc, fdv); | |
| 955 | |
| 956 for (int i = 0; i < nestedrefs.dim; i++) | |
| 957 { | |
| 958 FuncDeclaration f = cast(FuncDeclaration)nestedrefs.data[i]; | |
| 959 if (f == fdthis) | |
| 960 goto L1; | |
| 961 } | |
| 962 nestedrefs.push(cast(void*)fdthis); | |
| 963 L1: ; | |
| 964 | |
| 965 for (int i = 0; i < fdv.closureVars.dim; i++) | |
| 966 { | |
| 967 Dsymbol s = cast(Dsymbol)fdv.closureVars.data[i]; | |
| 968 if (s == this) | |
| 969 goto L2; | |
| 970 } | |
| 971 | |
| 972 fdv.closureVars.push(cast(void*)this); | |
| 973 L2: ; | |
| 974 | |
| 975 //printf("fdthis is %s\n", fdthis.toChars()); | |
| 976 //printf("var %s in function %s is nested ref\n", toChars(), fdv.toChars()); | |
| 977 } | |
| 978 } | |
| 979 } | |
| 980 | |
| 72 | 981 override Dsymbol toAlias() |
| 0 | 982 { |
| 983 //printf("VarDeclaration::toAlias('%s', this = %p, aliassym = %p)\n", toChars(), this, aliassym); | |
| 984 assert(this !is aliassym); | |
| 985 return aliassym ? aliassym.toAlias() : this; | |
| 986 } | |
| 987 | |
| 72 | 988 override Symbol* toSymbol() |
| 0 | 989 { |
| 990 //printf("VarDeclaration.toSymbol(%s)\n", toChars()); | |
| 991 //if (needThis()) *(char*)0=0; | |
| 992 assert(!needThis()); | |
| 993 if (!csym) | |
| 994 { | |
| 995 Symbol* s; | |
| 996 TYPE* t; | |
| 997 string id; | |
| 998 | |
| 999 if (isDataseg()) | |
| 1000 id = mangle(); | |
| 1001 else | |
| 1002 id = ident.toChars(); | |
| 1003 | |
| 1004 s = symbol_calloc(toStringz(id)); | |
| 1005 | |
| 1006 if (storage_class & (STC.STCout | STC.STCref)) | |
| 1007 { | |
| 1008 if (global.params.symdebug && storage_class & STC.STCparameter) | |
| 1009 { | |
| 1010 t = type_alloc(TYM.TYnptr); // should be TYref, but problems in back end | |
| 1011 t.Tnext = type.toCtype(); | |
| 1012 t.Tnext.Tcount++; | |
| 1013 } | |
| 1014 else | |
| 1015 t = type_fake(TYM.TYnptr); | |
| 1016 } | |
| 1017 else if (storage_class & STC.STClazy) | |
| 1018 t = type_fake(TYM.TYdelegate); // Tdelegate as C type | |
| 1019 else if (isParameter()) | |
| 1020 t = type.toCParamtype(); | |
| 1021 else | |
| 1022 t = type.toCtype(); | |
| 1023 | |
| 1024 t.Tcount++; | |
| 1025 | |
| 1026 if (isDataseg()) | |
| 1027 { | |
| 1028 if (isThreadlocal()) | |
| 1029 { | |
| 1030 /* Thread local storage | |
| 1031 */ | |
| 1032 TYPE* ts = t; | |
| 1033 ts.Tcount++; // make sure a different t is allocated | |
| 1034 type_setty(&t, t.Tty | mTY.mTYthread); | |
| 1035 ts.Tcount--; | |
| 1036 | |
| 1037 if (global.params.vtls) | |
| 1038 { | |
| 1039 string p = loc.toChars(); | |
| 1040 writef("%s: %s is thread local\n", p ? p : "", toChars()); | |
| 1041 } | |
| 1042 } | |
| 1043 | |
| 1044 s.Sclass = SC.SCextern; | |
| 1045 s.Sfl = FL.FLextern; | |
| 1046 slist_add(s); | |
| 1047 } | |
| 1048 else | |
| 1049 { | |
| 1050 s.Sclass = SC.SCauto; | |
| 1051 s.Sfl = FL.FLauto; | |
| 1052 | |
| 1053 if (nestedrefs.dim) | |
| 1054 { | |
| 1055 /* Symbol is accessed by a nested function. Make sure | |
| 1056 * it is not put in a register, and that the optimizer | |
| 1057 * assumes it is modified across function calls and pointer | |
| 1058 * dereferences. | |
| 1059 */ | |
| 1060 //printf("\tnested ref, not register\n"); | |
| 1061 type_setcv(&t, t.Tty | mTY.mTYvolatile); | |
| 1062 } | |
| 1063 } | |
| 1064 | |
| 1065 mangle_t m = 0; | |
| 1066 switch (linkage) | |
| 1067 { | |
| 1068 case LINK.LINKwindows: | |
| 1069 m = mTYman.mTYman_std; | |
| 1070 break; | |
| 1071 | |
| 1072 case LINK.LINKpascal: | |
| 1073 m = mTYman.mTYman_pas; | |
| 1074 break; | |
| 1075 | |
| 1076 case LINK.LINKc: | |
| 1077 m = mTYman.mTYman_c; | |
| 1078 break; | |
| 1079 | |
| 1080 case LINK.LINKd: | |
| 1081 m = mTYman.mTYman_d; | |
| 1082 break; | |
| 1083 | |
| 1084 case LINK.LINKcpp: | |
| 1085 m = mTYman.mTYman_cpp; | |
| 1086 break; | |
| 1087 | |
| 1088 default: | |
| 1089 writef("linkage = %d\n", linkage); | |
| 1090 assert(0); | |
| 1091 } | |
| 1092 type_setmangle(&t, m); | |
| 1093 s.Stype = t; | |
| 1094 | |
| 1095 csym = s; | |
| 1096 } | |
| 1097 return csym; | |
| 1098 } | |
| 1099 | |
| 72 | 1100 override void toObjFile(int multiobj) // compile to .obj file |
| 0 | 1101 { |
| 1102 Symbol* s; | |
| 1103 uint sz; | |
| 1104 Dsymbol parent; | |
| 1105 | |
| 1106 //printf("VarDeclaration.toObjFile(%p '%s' type=%s) protection %d\n", this, toChars(), type.toChars(), protection); | |
| 1107 //printf("\talign = %d\n", type.alignsize()); | |
| 1108 | |
| 1109 if (aliassym) | |
| 1110 { | |
| 1111 toAlias().toObjFile(0); | |
| 1112 return; | |
| 1113 } | |
| 1114 | |
| 1115 version (DMDV2) { | |
| 1116 // Do not store variables we cannot take the address of | |
| 1117 if (!canTakeAddressOf()) | |
| 1118 { | |
| 1119 return; | |
| 1120 } | |
| 1121 } | |
| 1122 | |
| 1123 if (isDataseg() && !(storage_class & STC.STCextern)) | |
| 1124 { | |
| 1125 s = toSymbol(); | |
| 1126 sz = cast(uint)type.size(); | |
| 1127 | |
| 1128 parent = this.toParent(); | |
| 1129 /// version (DMDV1) { /* private statics should still get a global symbol, in case | |
| 1130 /// * another module inlines a function that references it. | |
| 1131 /// */ | |
| 1132 /// if (/*protection == PROT.PROTprivate ||*/ | |
| 1133 /// !parent || parent.ident == null || parent.isFuncDeclaration()) | |
| 1134 /// { | |
| 1135 /// s.Sclass = SC.SCstatic; | |
| 1136 /// } | |
| 1137 /// else | |
| 1138 /// } | |
| 1139 { | |
| 1140 if (storage_class & STC.STCcomdat) | |
| 1141 s.Sclass = SC.SCcomdat; | |
| 1142 else | |
| 1143 s.Sclass = SC.SCglobal; | |
| 1144 | |
| 1145 do | |
| 1146 { | |
| 1147 /* Global template data members need to be in comdat's | |
| 1148 * in case multiple .obj files instantiate the same | |
| 1149 * template with the same types. | |
| 1150 */ | |
| 1151 if (parent.isTemplateInstance() && !parent.isTemplateMixin()) | |
| 1152 { | |
| 1153 version (DMDV1) { | |
| 1154 /* These symbol constants have already been copied, | |
| 1155 * so no reason to output them. | |
| 1156 * Note that currently there is no way to take | |
| 1157 * the address of such a const. | |
| 1158 */ | |
| 1159 if (isConst() && type.toBasetype().ty != TY.Tsarray && init && init.isExpInitializer()) | |
| 1160 return; | |
| 1161 } | |
| 1162 s.Sclass = SC.SCcomdat; | |
| 1163 break; | |
| 1164 } | |
| 1165 parent = parent.parent; | |
| 1166 } while (parent); | |
| 1167 } | |
| 1168 | |
| 1169 s.Sfl = FL.FLdata; | |
| 1170 | |
| 1171 if (init) | |
| 1172 { | |
| 1173 s.Sdt = init.toDt(); | |
| 1174 | |
| 1175 // Look for static array that is block initialized | |
| 1176 Type tb; | |
| 1177 ExpInitializer ie = init.isExpInitializer(); | |
| 1178 | |
| 1179 tb = type.toBasetype(); | |
| 1180 if (tb.ty == TY.Tsarray && ie | |
| 1181 && !tb.nextOf().equals(ie.exp.type.toBasetype().nextOf()) | |
| 1182 && ie.exp.implicitConvTo(tb.nextOf())) | |
| 1183 { | |
| 1184 int dim = cast(int)(cast(TypeSArray)tb).dim.toInteger(); | |
| 1185 | |
| 1186 // Duplicate Sdt 'dim-1' times, as we already have the first one | |
| 1187 while (--dim > 0) | |
| 1188 { | |
| 1189 ie.exp.toDt(&s.Sdt); | |
| 1190 } | |
| 1191 } | |
| 1192 } | |
| 1193 else if (storage_class & STC.STCextern) | |
| 1194 { | |
| 1195 s.Sclass = SC.SCextern; | |
| 1196 s.Sfl = FL.FLextern; | |
| 1197 s.Sdt = null; | |
| 1198 // BUG: if isExport(), shouldn't we make it dllimport? | |
| 1199 return; | |
| 1200 } | |
| 1201 else | |
| 1202 { | |
| 1203 type.toDt(&s.Sdt); | |
| 1204 } | |
| 1205 dt_optimize(s.Sdt); | |
| 1206 | |
| 1207 // See if we can convert a comdat to a comdef, | |
| 1208 // which saves on exe file space. | |
| 1209 if (s.Sclass == SC.SCcomdat && | |
| 1210 s.Sdt && | |
| 1211 s.Sdt.dt == DT.DT_azeros && | |
| 1212 s.Sdt.DTnext is null && | |
| 1213 !isThreadlocal()) | |
| 1214 { | |
| 1215 s.Sclass = SC.SCglobal; | |
| 1216 s.Sdt.dt = DT.DT_common; | |
| 1217 } | |
| 1218 | |
| 1219 version (ELFOBJ_OR_MACHOBJ) { // Burton | |
| 1220 if (s.Sdt && s.Sdt.dt == DT.DT_azeros && s.Sdt.DTnext is null) | |
| 1221 s.Sseg = Segment.UDATA; | |
| 1222 else | |
| 1223 s.Sseg = Segment.DATA; | |
| 1224 } | |
| 1225 if (sz) | |
| 1226 { | |
| 1227 outdata(s); | |
| 1228 if (isExport()) | |
| 1229 obj_export(s, 0); | |
| 1230 } | |
| 1231 } | |
| 1232 } | |
| 1233 | |
| 72 | 1234 override int cvMember(ubyte* p) |
| 0 | 1235 { |
| 1236 assert(false); | |
| 1237 } | |
| 1238 | |
| 1239 // Eliminate need for dynamic_cast | |
| 72 | 1240 override VarDeclaration isVarDeclaration() { return this; } |
|
16
5c9b78899f5d
Implemented methods for Tuples, fixed some linking issues.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
1241 } |