Mercurial > projects > ddmd
annotate dmd/VarDeclaration.d @ 98:5c859d5fbe27
and more
| author | Trass3r |
|---|---|
| date | Tue, 31 Aug 2010 03:53:49 +0200 |
| parents | 23280d154c5b |
| children | e6090d1aea7c |
| rev | line source |
|---|---|
| 0 | 1 module dmd.VarDeclaration; |
| 2 | |
|
84
be2ab491772e
Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
77
diff
changeset
|
3 import dmd.Array; |
| 0 | 4 import dmd.Declaration; |
| 5 import dmd.SliceExp; | |
| 6 import dmd.ClassDeclaration; | |
| 7 import dmd.DeleteExp; | |
| 8 import dmd.SymOffExp; | |
| 9 import dmd.DotIdExp; | |
| 10 import dmd.PtrExp; | |
| 11 import dmd.CallExp; | |
| 12 import dmd.DotVarExp; | |
| 13 import dmd.CommaExp; | |
| 14 import dmd.CastExp; | |
| 15 import dmd.WANT; | |
| 16 import dmd.StructDeclaration; | |
|
68
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
17 import dmd.StorageClassDeclaration; |
| 0 | 18 import dmd.DsymbolExp; |
| 19 import dmd.TypeSArray; | |
| 20 import dmd.IntegerExp; | |
| 21 import dmd.VarExp; | |
| 22 import dmd.AssignExp; | |
| 23 import dmd.TypeTypedef; | |
| 24 import dmd.ArrayInitializer; | |
| 25 import dmd.StructInitializer; | |
| 26 import dmd.NewExp; | |
| 27 import dmd.TupleDeclaration; | |
| 28 import dmd.AggregateDeclaration; | |
| 29 import dmd.InterfaceDeclaration; | |
| 30 import dmd.TemplateInstance; | |
| 31 import dmd.Id; | |
| 32 import dmd.Initializer; | |
| 33 import dmd.TypeStruct; | |
| 34 import dmd.TypeTuple; | |
| 35 import dmd.Argument; | |
| 36 import dmd.ExpInitializer; | |
| 37 import dmd.ArrayTypes; | |
| 38 import dmd.Dsymbol; | |
| 39 import dmd.Expression; | |
| 40 import dmd.Loc; | |
| 41 import dmd.STC; | |
| 42 import dmd.TOK; | |
| 43 import dmd.TupleExp; | |
| 44 import dmd.Global; | |
|
22
fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
16
diff
changeset
|
45 import dmd.Module; |
| 0 | 46 import dmd.FuncDeclaration; |
| 47 import dmd.Type; | |
| 48 import dmd.TY; | |
| 49 import dmd.LINK; | |
| 50 import dmd.Scope; | |
| 51 import dmd.Identifier; | |
| 52 import dmd.OutBuffer; | |
| 53 import dmd.HdrGenState; | |
| 54 import dmd.PROT; | |
| 73 | 55 import dmd.expression.Util; |
| 0 | 56 |
| 57 import dmd.backend.Symbol; | |
| 58 import dmd.backend.TYM; | |
| 59 import dmd.backend.FL; | |
| 60 import dmd.backend.DT; | |
| 61 import dmd.backend.mTY; | |
| 62 import dmd.backend.SC; | |
| 63 import dmd.backend.mTYman; | |
| 64 import dmd.backend.TYPE; | |
| 65 import dmd.backend.Util; | |
| 66 import dmd.backend.LIST; | |
| 67 | |
| 68 import std.stdio : writef; | |
| 69 import std.string : toStringz; | |
| 70 | |
| 71 class VarDeclaration : Declaration | |
| 72 { | |
| 73 Initializer init; | |
| 74 uint offset; | |
| 75 bool noauto; // no auto semantics | |
| 76 version (DMDV2) { | |
| 98 | 77 FuncDeclarations nestedrefs; // referenced by these lexically nested functions |
| 78 bool isargptr = false; // if parameter that _argptr points to | |
| 0 | 79 } else { |
| 80 int nestedref; // referenced by a lexically nested function | |
| 81 } | |
| 82 int ctorinit; // it has been initialized in a ctor | |
| 83 int onstack; // 1: it has been allocated on the stack | |
| 84 // 2: on stack, run destructor anyway | |
| 85 int canassign; // it can be assigned to | |
| 86 Dsymbol aliassym; // if redone as alias to another symbol | |
| 87 Expression value; // when interpreting, this is the value | |
| 88 // (null if value not determinable) | |
| 89 version (DMDV2) { | |
| 90 VarDeclaration rundtor; // if !null, rundtor is tested at runtime to see | |
| 91 // if the destructor should be run. Used to prevent | |
| 92 // dtor calls on postblitted vars | |
| 93 } | |
| 94 | |
| 95 this(Loc loc, Type type, Identifier id, Initializer init) | |
| 96 { | |
| 97 super(id); | |
| 98 | |
| 98 | 99 debug |
| 100 { | |
| 0 | 101 if (!type && !init) |
| 102 { | |
| 103 writef("VarDeclaration('%s')\n", id.toChars()); | |
| 104 //*(char*)0=0; | |
| 105 } | |
| 106 } | |
| 107 assert(type || init); | |
| 108 this.type = type; | |
| 109 this.init = init; | |
| 98 | 110 version(_DH) |
| 111 { | |
| 112 this.htype = null; | |
| 113 this.hinit = null; | |
| 114 } | |
| 0 | 115 this.loc = loc; |
| 116 | |
| 98 | 117 /* TODO: |
| 118 #if DMDV1 | |
| 119 nestedref = 0; | |
| 120 #endif | |
| 121 ctorinit = 0; | |
| 122 aliassym = NULL; | |
| 123 onstack = 0; | |
| 124 canassign = 0; | |
| 125 value = NULL; | |
| 126 rundtor = NULL; | |
| 127 */ | |
| 0 | 128 nestedrefs = new FuncDeclarations(); |
| 129 } | |
| 130 | |
| 72 | 131 override Dsymbol syntaxCopy(Dsymbol s) |
| 0 | 132 { |
| 133 //printf("VarDeclaration.syntaxCopy(%s)\n", toChars()); | |
| 134 | |
| 135 VarDeclaration sv; | |
| 136 if (s) | |
| 137 { | |
| 138 sv = cast(VarDeclaration)s; | |
| 139 } | |
| 140 else | |
| 141 { | |
| 142 Initializer init = null; | |
| 143 if (this.init) | |
| 144 { | |
| 145 init = this.init.syntaxCopy(); | |
| 146 //init.isExpInitializer().exp.print(); | |
| 147 //init.isExpInitializer().exp.dump(0); | |
| 148 } | |
| 149 | |
| 150 sv = new VarDeclaration(loc, type ? type.syntaxCopy() : null, ident, init); | |
| 151 sv.storage_class = storage_class; | |
| 152 } | |
| 153 | |
| 154 version (_DH) { | |
| 155 // Syntax copy for header file | |
| 156 if (!htype) // Don't overwrite original | |
| 157 { | |
| 158 if (type) // Make copy for both old and new instances | |
| 159 { htype = type.syntaxCopy(); | |
| 160 sv.htype = type.syntaxCopy(); | |
| 161 } | |
| 162 } | |
| 163 else // Make copy of original for new instance | |
| 164 sv.htype = htype.syntaxCopy(); | |
| 165 if (!hinit) | |
| 166 { | |
| 167 if (init) | |
| 168 { | |
| 169 hinit = init.syntaxCopy(); | |
| 170 sv.hinit = init.syntaxCopy(); | |
| 171 } | |
| 172 } | |
| 173 else | |
| 174 sv.hinit = hinit.syntaxCopy(); | |
| 175 } | |
| 176 return sv; | |
| 177 } | |
| 178 | |
| 72 | 179 override void semantic(Scope sc) |
| 0 | 180 { |
| 181 static if (false) { | |
| 182 printf("VarDeclaration.semantic('%s', parent = '%s')\n", toChars(), sc.parent.toChars()); | |
| 183 printf(" type = %s\n", type ? type.toChars() : "null"); | |
| 184 printf(" stc = x%x\n", sc.stc); | |
| 185 printf(" storage_class = x%x\n", storage_class); | |
| 186 printf("linkage = %d\n", sc.linkage); | |
| 187 //if (strcmp(toChars(), "mul") == 0) halt(); | |
| 188 } | |
| 189 | |
| 190 storage_class |= sc.stc; | |
| 191 if (storage_class & STC.STCextern && init) | |
| 192 error("extern symbols cannot have initializers"); | |
| 193 | |
| 194 /* If auto type inference, do the inference | |
| 195 */ | |
| 196 int inferred = 0; | |
| 197 if (!type) | |
| 198 { | |
| 199 inuse++; | |
| 200 type = init.inferType(sc); | |
| 201 inuse--; | |
| 202 inferred = 1; | |
| 203 | |
| 204 /* This is a kludge to support the existing syntax for RAII | |
| 205 * declarations. | |
| 206 */ | |
| 207 storage_class &= ~STC.STCauto; | |
| 208 originalType = type; | |
| 209 } | |
| 210 else | |
| 211 { | |
| 212 if (!originalType) | |
| 213 originalType = type; | |
| 214 | |
| 215 type = type.semantic(loc, sc); | |
| 216 } | |
| 217 //printf(" semantic type = %s\n", type ? type.toChars() : "null"); | |
| 218 | |
| 219 type.checkDeprecated(loc, sc); | |
| 220 linkage = sc.linkage; | |
| 221 this.parent = sc.parent; | |
| 222 //printf("this = %p, parent = %p, '%s'\n", this, parent, parent.toChars()); | |
| 223 protection = sc.protection; | |
| 224 //printf("sc.stc = %x\n", sc.stc); | |
| 225 //printf("storage_class = x%x\n", storage_class); | |
| 226 | |
| 227 version (DMDV2) { | |
| 228 if (storage_class & STC.STCgshared && global.params.safe && !sc.module_.safe) | |
| 229 { | |
| 230 error("__gshared not allowed in safe mode; use shared"); | |
| 231 } | |
| 232 } | |
| 233 | |
| 234 Dsymbol parent = toParent(); | |
| 235 FuncDeclaration fd = parent.isFuncDeclaration(); | |
| 236 | |
| 237 Type tb = type.toBasetype(); | |
| 238 if (tb.ty == TY.Tvoid && !(storage_class & STC.STClazy)) | |
| 239 { error("voids have no value"); | |
| 240 type = Type.terror; | |
| 241 tb = type; | |
| 242 } | |
| 243 if (tb.ty == TY.Tfunction) | |
| 244 { error("cannot be declared to be a function"); | |
| 245 type = Type.terror; | |
| 246 tb = type; | |
| 247 } | |
| 248 if (tb.ty == TY.Tstruct) | |
| 249 { TypeStruct ts = cast(TypeStruct)tb; | |
| 250 | |
| 251 if (!ts.sym.members) | |
| 252 { | |
| 253 error("no definition of struct %s", ts.toChars()); | |
| 254 } | |
| 255 } | |
| 256 | |
| 257 if (tb.ty == TY.Ttuple) | |
| 258 { /* Instead, declare variables for each of the tuple elements | |
| 259 * and add those. | |
| 260 */ | |
| 261 TypeTuple tt = cast(TypeTuple)tb; | |
| 262 size_t nelems = Argument.dim(tt.arguments); | |
| 263 Objects exps = new Objects(); | |
| 264 exps.setDim(nelems); | |
| 265 Expression ie = init ? init.toExpression() : null; | |
| 266 | |
| 267 for (size_t i = 0; i < nelems; i++) | |
| 268 { Argument arg = Argument.getNth(tt.arguments, i); | |
| 269 | |
|
16
5c9b78899f5d
Implemented methods for Tuples, fixed some linking issues.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
270 OutBuffer buf = new OutBuffer(); |
| 53 | 271 ///buf.printf("_%s_field_%zu", ident.toChars(), i); |
| 272 buf.printf("_%s_field_%s", ident.toChars(), i); | |
| 0 | 273 buf.writeByte(0); |
| 274 string name = buf.extractString(); | |
| 275 Identifier id = new Identifier(name, TOK.TOKidentifier); | |
| 276 | |
| 277 Expression einit = ie; | |
| 278 if (ie && ie.op == TOK.TOKtuple) | |
| 279 { einit = cast(Expression)(cast(TupleExp)ie).exps.data[i]; | |
| 280 } | |
| 281 Initializer ti = init; | |
| 282 if (einit) | |
| 283 { ti = new ExpInitializer(einit.loc, einit); | |
| 284 } | |
| 285 | |
|
74
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Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
286 auto v = new VarDeclaration(loc, arg.type, id, ti); |
| 0 | 287 //printf("declaring field %s of type %s\n", v.toChars(), v.type.toChars()); |
| 288 v.semantic(sc); | |
| 289 | |
| 290 if (sc.scopesym) | |
| 291 { //printf("adding %s to %s\n", v.toChars(), sc.scopesym.toChars()); | |
| 292 if (sc.scopesym.members) | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
293 sc.scopesym.members.push(v); |
| 0 | 294 } |
| 295 | |
| 296 Expression e = new DsymbolExp(loc, v); | |
| 297 exps.data[i] = cast(void*)e; | |
| 298 } | |
| 299 TupleDeclaration v2 = new TupleDeclaration(loc, ident, exps); | |
| 300 v2.isexp = 1; | |
| 301 aliassym = v2; | |
| 302 return; | |
| 303 } | |
| 304 | |
| 305 Lagain: | |
| 306 /* Storage class can modify the type | |
| 307 */ | |
| 308 type = type.addStorageClass(storage_class); | |
| 309 | |
| 310 /* Adjust storage class to reflect type | |
| 311 */ | |
| 312 if (type.isConst()) | |
| 313 { storage_class |= STC.STCconst; | |
| 314 if (type.isShared()) | |
| 315 storage_class |= STC.STCshared; | |
| 316 } | |
| 317 else if (type.isInvariant()) | |
| 318 storage_class |= STC.STCimmutable; | |
| 319 else if (type.isShared()) | |
| 320 storage_class |= STC.STCshared; | |
| 321 | |
| 322 if (isSynchronized()) | |
| 323 { | |
| 324 error("variable %s cannot be synchronized", toChars()); | |
| 325 } | |
| 326 else if (isOverride()) | |
| 327 { | |
| 328 error("override cannot be applied to variable"); | |
| 329 } | |
| 330 else if (isAbstract()) | |
| 331 { | |
| 332 error("abstract cannot be applied to variable"); | |
| 333 } | |
| 334 else if (storage_class & STC.STCfinal) | |
| 335 { | |
| 336 error("final cannot be applied to variable"); | |
| 337 } | |
| 338 | |
| 339 if (storage_class & (STC.STCstatic | STC.STCextern | STC.STCmanifest | STC.STCtemplateparameter | STC.STCtls | STC.STCgshared)) | |
| 340 { | |
| 341 } | |
| 342 else | |
| 343 { | |
| 344 AggregateDeclaration aad = sc.anonAgg; | |
| 345 if (!aad) | |
| 346 aad = parent.isAggregateDeclaration(); | |
| 347 if (aad) | |
| 348 { | |
| 349 ///version (DMDV2) { | |
| 350 assert(!(storage_class & (STC.STCextern | STC.STCstatic | STC.STCtls | STC.STCgshared))); | |
| 351 | |
| 352 if (storage_class & (STC.STCconst | STC.STCimmutable) && init) | |
| 353 { | |
| 354 if (!type.toBasetype().isTypeBasic()) | |
| 355 storage_class |= STC.STCstatic; | |
| 356 } | |
| 357 else | |
| 358 ///} | |
| 359 aad.addField(sc, this); | |
| 360 } | |
| 361 | |
| 362 InterfaceDeclaration id = parent.isInterfaceDeclaration(); | |
| 363 if (id) | |
| 364 { | |
| 365 error("field not allowed in interface"); | |
| 366 } | |
| 367 | |
| 368 /* Templates cannot add fields to aggregates | |
| 369 */ | |
| 370 TemplateInstance ti = parent.isTemplateInstance(); | |
| 371 if (ti) | |
| 372 { | |
| 373 // Take care of nested templates | |
| 374 while (1) | |
| 375 { | |
| 376 TemplateInstance ti2 = ti.tempdecl.parent.isTemplateInstance(); | |
| 377 if (!ti2) | |
| 378 break; | |
| 379 ti = ti2; | |
| 380 } | |
| 381 | |
| 382 // If it's a member template | |
| 383 AggregateDeclaration ad = ti.tempdecl.isMember(); | |
| 384 if (ad && storage_class != STC.STCundefined) | |
| 385 { | |
| 386 error("cannot use template to add field to aggregate '%s'", ad.toChars()); | |
| 387 } | |
| 388 } | |
| 389 } | |
| 390 | |
| 391 version (DMDV2) { | |
| 392 if ((storage_class & (STC.STCref | STC.STCparameter | STC.STCforeach)) == STC.STCref && ident != Id.This) | |
| 393 { | |
| 394 error("only parameters or foreach declarations can be ref"); | |
| 395 } | |
| 396 } | |
| 397 | |
| 398 if (type.isauto() && !noauto) | |
| 399 { | |
| 400 if (storage_class & (STC.STCfield | STC.STCout | STC.STCref | STC.STCstatic | STC.STCmanifest | STC.STCtls | STC.STCgshared) || !fd) | |
| 401 { | |
| 402 error("globals, statics, fields, manifest constants, ref and out parameters cannot be scope"); | |
| 403 } | |
| 404 | |
| 405 if (!(storage_class & (STC.STCauto | STC.STCscope))) | |
| 406 { | |
| 407 if (!(storage_class & STC.STCparameter) && ident != Id.withSym) | |
| 408 error("reference to scope class must be scope"); | |
| 409 } | |
| 410 } | |
| 411 | |
| 412 if ((isConst() || isInvariant()) && !init && !fd) | |
| 413 { | |
| 414 // Initialize by constructor only | |
| 415 storage_class |= STC.STCctorinit; | |
| 416 } | |
| 417 | |
| 418 if (init) | |
| 419 storage_class |= STC.STCinit; // remember we had an explicit initializer | |
| 420 else if (storage_class & STC.STCmanifest) | |
| 421 error("manifest constants must have initializers"); | |
| 422 | |
| 423 TOK op = TOK.TOKconstruct; | |
| 424 if (!init && !sc.inunion && !isStatic() && fd && | |
| 425 (!(storage_class & (STC.STCfield | STC.STCin | STC.STCforeach | STC.STCparameter)) || (storage_class & STC.STCout)) && | |
| 426 type.size() != 0) | |
| 427 { | |
| 428 // Provide a default initializer | |
| 429 //printf("Providing default initializer for '%s'\n", toChars()); | |
| 430 if (type.ty == TY.Tstruct && | |
| 431 (cast(TypeStruct)type).sym.zeroInit) | |
| 432 { /* If a struct is all zeros, as a special case | |
| 433 * set it's initializer to the integer 0. | |
| 434 * In AssignExp.toElem(), we check for this and issue | |
| 435 * a memset() to initialize the struct. | |
| 436 * Must do same check in interpreter. | |
| 437 */ | |
| 438 Expression e = new IntegerExp(loc, 0, Type.tint32); | |
| 439 Expression e1; | |
| 440 e1 = new VarExp(loc, this); | |
| 441 e = new AssignExp(loc, e1, e); | |
| 442 e.op = TOK.TOKconstruct; | |
| 443 e.type = e1.type; // don't type check this, it would fail | |
| 444 init = new ExpInitializer(loc, e); | |
| 445 return; | |
| 446 } | |
| 447 else if (type.ty == TY.Ttypedef) | |
| 448 { TypeTypedef td = cast(TypeTypedef)type; | |
| 449 if (td.sym.init) | |
| 450 { init = td.sym.init; | |
| 451 ExpInitializer ie = init.isExpInitializer(); | |
| 452 if (ie) | |
| 453 // Make copy so we can modify it | |
| 454 init = new ExpInitializer(ie.loc, ie.exp); | |
| 455 } | |
| 456 else | |
| 457 init = getExpInitializer(); | |
| 458 } | |
| 459 else | |
| 460 { | |
| 461 init = getExpInitializer(); | |
| 462 } | |
| 463 // Default initializer is always a blit | |
| 464 op = TOK.TOKblit; | |
| 465 } | |
| 466 | |
| 467 if (init) | |
| 468 { | |
| 469 sc = sc.push(); | |
| 470 sc.stc &= ~(STC.STC_TYPECTOR | STC.STCpure | STC.STCnothrow | STC.STCref); | |
| 471 | |
| 472 ArrayInitializer ai = init.isArrayInitializer(); | |
| 473 if (ai && tb.ty == TY.Taarray) | |
| 474 { | |
| 475 init = ai.toAssocArrayInitializer(); | |
| 476 } | |
| 477 | |
| 478 StructInitializer si = init.isStructInitializer(); | |
| 479 ExpInitializer ei = init.isExpInitializer(); | |
| 480 | |
| 481 // See if initializer is a NewExp that can be allocated on the stack | |
| 482 if (ei && isScope() && ei.exp.op == TOK.TOKnew) | |
| 483 { NewExp ne = cast(NewExp)ei.exp; | |
| 484 if (!(ne.newargs && ne.newargs.dim)) | |
| 485 { ne.onstack = 1; | |
| 486 onstack = 1; | |
| 487 if (type.isBaseOf(ne.newtype.semantic(loc, sc), null)) | |
| 488 onstack = 2; | |
| 489 } | |
| 490 } | |
| 491 | |
| 492 // If inside function, there is no semantic3() call | |
| 493 if (sc.func) | |
| 494 { | |
| 495 // If local variable, use AssignExp to handle all the various | |
| 496 // possibilities. | |
| 497 if (fd && | |
| 498 !(storage_class & (STC.STCmanifest | STC.STCstatic | STC.STCtls | STC.STCgshared | STC.STCextern)) && | |
| 499 !init.isVoidInitializer()) | |
| 500 { | |
| 501 //printf("fd = '%s', var = '%s'\n", fd.toChars(), toChars()); | |
| 502 if (!ei) | |
| 503 { | |
| 504 Expression e = init.toExpression(); | |
| 505 if (!e) | |
| 506 { | |
| 507 init = init.semantic(sc, type); | |
| 508 e = init.toExpression(); | |
| 509 if (!e) | |
| 510 { error("is not a static and cannot have static initializer"); | |
| 511 return; | |
| 512 } | |
| 513 } | |
| 514 ei = new ExpInitializer(init.loc, e); | |
| 515 init = ei; | |
| 516 } | |
| 517 | |
| 518 Expression e1 = new VarExp(loc, this); | |
| 519 | |
| 520 Type t = type.toBasetype(); | |
| 521 if (t.ty == TY.Tsarray && !(storage_class & (STC.STCref | STC.STCout))) | |
| 522 { | |
| 523 ei.exp = ei.exp.semantic(sc); | |
| 524 if (!ei.exp.implicitConvTo(type)) | |
| 525 { | |
| 526 int dim = cast(int)(cast(TypeSArray)t).dim.toInteger(); /// | |
| 527 // If multidimensional static array, treat as one large array | |
| 528 while (1) | |
| 529 { | |
| 530 t = t.nextOf().toBasetype(); | |
| 531 if (t.ty != TY.Tsarray) | |
| 532 break; | |
| 533 dim *= (cast(TypeSArray)t).dim.toInteger(); | |
| 534 e1.type = new TypeSArray(t.nextOf(), new IntegerExp(Loc(0), dim, Type.tindex)); | |
| 535 } | |
| 536 } | |
| 537 e1 = new SliceExp(loc, e1, null, null); | |
| 538 } | |
| 539 else if (t.ty == TY.Tstruct) | |
| 540 { | |
| 541 ei.exp = ei.exp.semantic(sc); | |
| 98 | 542 ei.exp = resolveProperties(sc, ei.exp); |
| 543 StructDeclaration sd = (cast(TypeStruct)t).sym; | |
| 544 version (DMDV2) | |
| 545 { | |
| 0 | 546 /* Look to see if initializer is a call to the constructor |
| 547 */ | |
| 548 if (sd.ctor && // there are constructors | |
| 549 ei.exp.type.ty == TY.Tstruct && // rvalue is the same struct | |
| 550 (cast(TypeStruct)ei.exp.type).sym == sd && | |
| 551 ei.exp.op == TOK.TOKstar) | |
| 552 { | |
| 553 /* Look for form of constructor call which is: | |
| 554 * *__ctmp.ctor(arguments...) | |
| 555 */ | |
| 556 PtrExp pe = cast(PtrExp)ei.exp; | |
| 557 if (pe.e1.op == TOK.TOKcall) | |
| 558 { CallExp ce = cast(CallExp)pe.e1; | |
| 559 if (ce.e1.op == TOK.TOKdotvar) | |
| 560 { DotVarExp dve = cast(DotVarExp)ce.e1; | |
| 561 if (dve.var.isCtorDeclaration()) | |
| 562 { /* It's a constructor call, currently constructing | |
| 563 * a temporary __ctmp. | |
| 564 */ | |
| 565 /* Before calling the constructor, initialize | |
| 566 * variable with a bit copy of the default | |
| 567 * initializer | |
| 568 */ | |
| 569 Expression e = new AssignExp(loc, new VarExp(loc, this), t.defaultInit(loc)); | |
| 570 e.op = TOK.TOKblit; | |
| 571 e.type = t; | |
| 572 ei.exp = new CommaExp(loc, e, ei.exp); | |
| 573 | |
| 574 /* Replace __ctmp being constructed with e1 | |
| 575 */ | |
| 576 dve.e1 = e1; | |
| 577 return; | |
| 578 } | |
| 579 } | |
| 580 } | |
| 581 } | |
| 582 } | |
| 583 if (!ei.exp.implicitConvTo(type)) | |
| 73 | 584 { |
| 98 | 585 Type *ti = ei.exp.type.toBasetype(); |
| 586 // Look for constructor first | |
| 587 if (sd.ctor && | |
| 588 /* Initializing with the same type is done differently | |
| 589 */ | |
| 590 !(ti.ty == Tstruct && t.toDsymbol(sc) == ti.toDsymbol(sc))) | |
| 591 { | |
| 592 // Rewrite as e1.ctor(arguments) | |
| 593 Expression ector = new DotIdExp(loc, e1, Id.ctor); | |
| 594 ei.exp = new CallExp(loc, ector, ei.exp); | |
| 595 } | |
| 596 else | |
| 73 | 597 /* Look for opCall |
| 598 * See bugzilla 2702 for more discussion | |
| 599 */ | |
| 98 | 600 |
| 73 | 601 // Don't cast away invariant or mutability in initializer |
| 602 if (search_function(sd, Id.call) && | |
| 603 /* Initializing with the same type is done differently | |
| 604 */ | |
| 605 !(ti.ty == Tstruct && t.toDsymbol(sc) == ti.toDsymbol(sc))) | |
| 606 { // Rewrite as e1.call(arguments) | |
| 607 Expression eCall = new DotIdExp(loc, e1, Id.call); | |
| 608 ei.exp = new CallExp(loc, eCall, ei.exp); | |
| 609 } | |
| 0 | 610 } |
| 611 } | |
| 612 ei.exp = new AssignExp(loc, e1, ei.exp); | |
| 613 ei.exp.op = op; | |
| 614 canassign++; | |
| 615 ei.exp = ei.exp.semantic(sc); | |
| 616 canassign--; | |
| 617 ei.exp.optimize(WANT.WANTvalue); | |
| 618 } | |
| 619 else | |
| 620 { | |
| 621 init = init.semantic(sc, type); | |
| 622 } | |
| 623 } | |
| 624 else if (storage_class & (STC.STCconst | STC.STCimmutable | STC.STCmanifest) || | |
| 98 | 625 type.isConst() || type.isInvariant() || |
| 626 parent.isAggregateDeclaration()) | |
| 0 | 627 { |
| 628 /* Because we may need the results of a const declaration in a | |
| 629 * subsequent type, such as an array dimension, before semantic2() | |
| 630 * gets ordinarily run, try to run semantic2() now. | |
| 631 * Ignore failure. | |
| 632 */ | |
| 633 | |
| 634 if (!global.errors && !inferred) | |
| 635 { | |
| 636 uint errors = global.errors; | |
| 637 global.gag++; | |
| 638 //printf("+gag\n"); | |
| 639 Expression e; | |
| 640 Initializer i2 = init; | |
| 641 inuse++; | |
| 642 if (ei) | |
| 643 { | |
| 644 e = ei.exp.syntaxCopy(); | |
| 645 e = e.semantic(sc); | |
| 646 e = e.implicitCastTo(sc, type); | |
| 647 } | |
| 648 else if (si || ai) | |
| 649 { i2 = init.syntaxCopy(); | |
| 650 i2 = i2.semantic(sc, type); | |
| 651 } | |
| 652 inuse--; | |
| 653 global.gag--; | |
| 654 //printf("-gag\n"); | |
| 655 if (errors != global.errors) // if errors happened | |
| 656 { | |
| 657 if (global.gag == 0) | |
| 658 global.errors = errors; // act as if nothing happened | |
| 659 version (DMDV2) { | |
| 660 /* Save scope for later use, to try again | |
| 661 */ | |
|
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|
662 scope_ = sc.clone(); |
| 0 | 663 scope_.setNoFree(); |
| 664 } | |
| 665 } | |
| 666 else if (ei) | |
| 667 { | |
| 668 if (isDataseg()) | |
| 669 /* static const/invariant does CTFE | |
| 670 */ | |
| 671 e = e.optimize(WANT.WANTvalue | WANT.WANTinterpret); | |
| 672 else | |
| 673 e = e.optimize(WANT.WANTvalue); | |
| 674 if (e.op == TOK.TOKint64 || e.op == TOK.TOKstring || e.op == TOK.TOKfloat64) | |
| 675 { | |
| 676 ei.exp = e; // no errors, keep result | |
| 677 } | |
| 678 ///version (DMDV2) { | |
| 679 else | |
| 680 { | |
| 681 /* Save scope for later use, to try again | |
| 682 */ | |
|
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|
683 scope_ = sc.clone(); |
| 0 | 684 scope_.setNoFree(); |
| 685 } | |
| 686 ///} | |
| 687 } | |
| 688 else | |
| 689 init = i2; // no errors, keep result | |
| 690 } | |
| 691 } | |
| 692 sc = sc.pop(); | |
| 693 } | |
| 694 } | |
| 695 | |
| 72 | 696 override void semantic2(Scope sc) |
| 0 | 697 { |
| 698 //printf("VarDeclaration.semantic2('%s')\n", toChars()); | |
| 699 if (init && !toParent().isFuncDeclaration()) | |
| 700 { | |
| 701 inuse++; | |
| 702 static if (false) { | |
| 703 ExpInitializer ei = init.isExpInitializer(); | |
| 704 if (ei) | |
| 705 { | |
| 706 ei.exp.dump(0); | |
| 707 printf("type = %p\n", ei.exp.type); | |
| 708 } | |
| 709 } | |
| 710 init = init.semantic(sc, type); | |
| 711 inuse--; | |
| 712 } | |
| 713 } | |
| 714 | |
| 72 | 715 override string kind() |
| 0 | 716 { |
| 717 return "variable"; | |
| 718 } | |
| 719 | |
| 72 | 720 override void toCBuffer(OutBuffer buf, HdrGenState* hgs) |
| 0 | 721 { |
|
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722 StorageClassDeclaration.stcToCBuffer(buf, storage_class); |
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723 |
|
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724 /* If changing, be sure and fix CompoundDeclarationStatement.toCBuffer() |
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725 * too. |
|
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|
726 */ |
|
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|
727 if (type) |
|
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728 type.toCBuffer(buf, ident, hgs); |
|
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729 else |
|
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|
730 buf.writestring(ident.toChars()); |
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|
731 if (init) |
|
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|
732 { |
|
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|
733 buf.writestring(" = "); |
|
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|
734 ///version (DMDV2) { |
|
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|
735 ExpInitializer ie = init.isExpInitializer(); |
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|
736 if (ie && (ie.exp.op == TOKconstruct || ie.exp.op == TOKblit)) |
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737 (cast(AssignExp)ie.exp).e2.toCBuffer(buf, hgs); |
|
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|
738 else |
|
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|
739 ///} |
|
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|
740 init.toCBuffer(buf, hgs); |
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|
741 } |
|
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|
742 buf.writeByte(';'); |
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|
743 buf.writenl(); |
| 0 | 744 } |
| 745 | |
| 746 version (_DH) { | |
| 747 Type htype; | |
| 748 Initializer hinit; | |
| 749 } | |
| 72 | 750 override bool needThis() |
| 0 | 751 { |
| 752 //printf("VarDeclaration.needThis(%s, x%x)\n", toChars(), storage_class); | |
| 753 return (storage_class & STC.STCfield) != 0; | |
| 754 } | |
| 755 | |
| 72 | 756 override bool isImportedSymbol() |
| 0 | 757 { |
| 758 if (protection == PROT.PROTexport && !init && (storage_class & STC.STCstatic || parent.isModule())) | |
| 759 return true; | |
| 760 | |
| 761 return false; | |
| 762 } | |
| 763 | |
| 72 | 764 override bool isDataseg() |
| 0 | 765 { |
| 766 static if (false) { | |
| 767 printf("VarDeclaration.isDataseg(%p, '%s')\n", this, toChars()); | |
| 768 printf("%x, %p, %p\n", storage_class & (STC.STCstatic | STC.STCconst), parent.isModule(), parent.isTemplateInstance()); | |
| 769 printf("parent = '%s'\n", parent.toChars()); | |
| 770 } | |
| 771 if (storage_class & STC.STCmanifest) | |
| 772 return false; | |
| 773 | |
| 774 Dsymbol parent = this.toParent(); | |
| 775 if (!parent && !(storage_class & STC.STCstatic)) | |
| 776 { | |
| 777 error("forward referenced"); | |
| 778 type = Type.terror; | |
| 779 return false; | |
| 780 } | |
| 781 | |
| 782 return canTakeAddressOf() && (storage_class & (STC.STCstatic | STC.STCextern | STC.STCtls | STC.STCgshared) || toParent().isModule() || toParent().isTemplateInstance()); | |
| 783 } | |
| 784 | |
| 72 | 785 override bool isThreadlocal() |
| 0 | 786 { |
| 787 //printf("VarDeclaration.isThreadlocal(%p, '%s')\n", this, toChars()); | |
| 788 static if (false) { /// || TARGET_OSX | |
| 789 /* To be thread-local, must use the __thread storage class. | |
| 790 * BUG: OSX doesn't support thread local yet. | |
| 791 */ | |
| 792 return isDataseg() && (storage_class & (STC.STCtls | STC.STCconst | STC.STCimmutable | STC.STCshared | STC.STCgshared)) == STC.STCtls; | |
| 793 } else { | |
| 794 /* Data defaults to being thread-local. It is not thread-local | |
| 795 * if it is immutable, const or shared. | |
| 796 */ | |
| 797 bool i = isDataseg() && !(storage_class & (STC.STCimmutable | STC.STCconst | STC.STCshared | STC.STCgshared)); | |
| 798 //printf("\treturn %d\n", i); | |
| 799 return i; | |
| 800 } | |
| 801 } | |
| 802 | |
| 72 | 803 override bool hasPointers() |
| 0 | 804 { |
| 805 //printf("VarDeclaration.hasPointers() %s, ty = %d\n", toChars(), type.ty); | |
| 806 return (!isDataseg() && type.hasPointers()); | |
| 807 } | |
| 808 | |
| 809 version (DMDV2) { | |
| 810 bool canTakeAddressOf() | |
| 811 { | |
| 812 static if (false) { | |
| 813 /* Global variables and struct/class fields of the form: | |
| 814 * const int x = 3; | |
| 815 * are not stored and hence cannot have their address taken. | |
| 816 */ | |
| 817 if ((isConst() || isInvariant()) && (storage_class & STC.STCinit) && (!(storage_class & (STC.STCstatic | STC.STCextern)) || (storage_class & STC.STCfield)) && | |
| 818 (!parent || toParent().isModule() || toParent().isTemplateInstance()) && type.toBasetype().isTypeBasic()) | |
| 819 { | |
| 820 return false; | |
| 821 } | |
| 822 } else { | |
| 823 if (storage_class & STC.STCmanifest) | |
| 824 return false; | |
| 825 } | |
| 826 return true; | |
| 827 } | |
| 828 | |
|
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829 /****************************************** |
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830 * Return TRUE if variable needs to call the destructor. |
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831 */ |
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832 bool needsAutoDtor() |
| 0 | 833 { |
|
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834 //printf("VarDeclaration.needsAutoDtor() %s\n", toChars()); |
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835 |
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836 if (noauto || storage_class & STCnodtor) |
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837 return false; |
|
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|
838 |
|
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839 // Destructors for structs and arrays of structs |
|
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840 Type tv = type.toBasetype(); |
|
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841 while (tv.ty == Tsarray) |
|
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842 { |
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843 TypeSArray ta = cast(TypeSArray)tv; |
|
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844 tv = tv.nextOf().toBasetype(); |
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845 } |
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846 if (tv.ty == Tstruct) |
|
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847 { |
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848 TypeStruct ts = cast(TypeStruct)tv; |
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849 StructDeclaration sd = ts.sym; |
|
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850 if (sd.dtor) |
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851 return true; |
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|
852 } |
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|
853 |
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854 // Destructors for classes |
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855 if (storage_class & (STCauto | STCscope)) |
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856 { |
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857 if (type.isClassHandle()) |
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858 return true; |
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|
859 } |
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|
860 return false; |
| 0 | 861 } |
| 862 } | |
| 863 | |
| 864 /****************************************** | |
| 865 * If a variable has an auto destructor call, return call for it. | |
| 866 * Otherwise, return null. | |
| 867 */ | |
| 868 Expression callAutoDtor(Scope sc) | |
| 869 { | |
| 870 Expression e = null; | |
| 871 | |
| 872 //printf("VarDeclaration.callAutoDtor() %s\n", toChars()); | |
| 873 | |
| 874 if (noauto || storage_class & STC.STCnodtor) | |
| 875 return null; | |
| 876 | |
| 877 // Destructors for structs and arrays of structs | |
| 878 bool array = false; | |
| 879 Type tv = type.toBasetype(); | |
| 880 while (tv.ty == TY.Tsarray) | |
| 881 { | |
| 882 TypeSArray ta = cast(TypeSArray)tv; | |
| 883 array = true; | |
| 884 tv = tv.nextOf().toBasetype(); | |
| 885 } | |
| 886 if (tv.ty == TY.Tstruct) | |
| 887 { | |
| 888 TypeStruct ts = cast(TypeStruct)tv; | |
| 889 StructDeclaration sd = ts.sym; | |
| 890 if (sd.dtor) | |
| 891 { | |
| 892 if (array) | |
| 893 { | |
| 894 // Typeinfo.destroy(cast(void*)&v); | |
| 895 Expression ea = new SymOffExp(loc, this, 0, 0); | |
| 896 ea = new CastExp(loc, ea, Type.tvoid.pointerTo()); | |
| 897 Expressions args = new Expressions(); | |
|
84
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|
898 args.push(ea); |
| 0 | 899 |
| 900 Expression et = type.getTypeInfo(sc); | |
| 901 et = new DotIdExp(loc, et, Id.destroy); | |
| 902 | |
| 903 e = new CallExp(loc, et, args); | |
| 904 } | |
| 905 else | |
| 906 { | |
| 907 e = new VarExp(loc, this); | |
| 908 e = new DotVarExp(loc, e, sd.dtor, 0); | |
| 909 e = new CallExp(loc, e); | |
| 910 } | |
| 911 return e; | |
| 912 } | |
| 913 } | |
| 914 | |
| 915 // Destructors for classes | |
| 916 if (storage_class & (STC.STCauto | STC.STCscope)) | |
| 917 { | |
| 918 for (ClassDeclaration cd = type.isClassHandle(); cd; cd = cd.baseClass) | |
| 919 { | |
| 920 /* We can do better if there's a way with onstack | |
| 921 * classes to determine if there's no way the monitor | |
| 922 * could be set. | |
| 923 */ | |
| 924 //if (cd.isInterfaceDeclaration()) | |
| 925 //error("interface %s cannot be scope", cd.toChars()); | |
| 926 if (1 || onstack || cd.dtors.dim) // if any destructors | |
| 927 { | |
| 928 // delete this; | |
| 929 Expression ec = new VarExp(loc, this); | |
| 930 e = new DeleteExp(loc, ec); | |
| 931 e.type = Type.tvoid; | |
| 932 break; | |
| 933 } | |
| 934 } | |
| 935 } | |
| 936 return e; | |
| 937 } | |
| 938 | |
| 939 /**************************** | |
| 940 * Get ExpInitializer for a variable, if there is one. | |
| 941 */ | |
| 942 ExpInitializer getExpInitializer() | |
| 943 { | |
| 944 ExpInitializer ei; | |
| 945 | |
| 946 if (init) | |
| 947 ei = init.isExpInitializer(); | |
| 948 else | |
| 949 { | |
| 950 Expression e = type.defaultInit(loc); | |
| 951 if (e) | |
| 952 ei = new ExpInitializer(loc, e); | |
| 953 else | |
| 954 ei = null; | |
| 955 } | |
| 956 return ei; | |
| 957 } | |
| 958 | |
| 959 /******************************************* | |
| 960 * If variable has a constant expression initializer, get it. | |
| 961 * Otherwise, return null. | |
| 962 */ | |
| 963 Expression getConstInitializer() | |
| 964 { | |
| 965 if ((isConst() || isInvariant() || storage_class & STC.STCmanifest) && storage_class & STC.STCinit) | |
| 966 { | |
| 967 ExpInitializer ei = getExpInitializer(); | |
| 968 if (ei) | |
| 969 return ei.exp; | |
| 970 } | |
| 971 | |
| 972 return null; | |
| 973 } | |
| 974 | |
| 72 | 975 override void checkCtorConstInit() |
| 0 | 976 { |
| 977 static if (false) { /* doesn't work if more than one static ctor */ | |
| 978 if (ctorinit == 0 && isCtorinit() && !(storage_class & STCfield)) | |
| 979 error("missing initializer in static constructor for const variable"); | |
| 980 } | |
| 981 } | |
| 982 | |
| 983 /************************************ | |
| 984 * Check to see if this variable is actually in an enclosing function | |
| 985 * rather than the current one. | |
| 986 */ | |
| 987 void checkNestedReference(Scope sc, Loc loc) | |
| 988 { | |
| 989 if (parent && !isDataseg() && parent != sc.parent && !(storage_class & STC.STCmanifest)) | |
| 990 { | |
| 991 // The function that this variable is in | |
| 992 FuncDeclaration fdv = toParent().isFuncDeclaration(); | |
| 993 // The current function | |
| 994 FuncDeclaration fdthis = sc.parent.isFuncDeclaration(); | |
| 995 | |
| 996 if (fdv && fdthis && fdv !is fdthis) | |
| 997 { | |
| 998 if (loc.filename) | |
| 999 fdthis.getLevel(loc, fdv); | |
| 1000 | |
|
84
be2ab491772e
Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
77
diff
changeset
|
1001 foreach (f; nestedrefs) |
| 0 | 1002 { |
| 1003 if (f == fdthis) | |
| 1004 goto L1; | |
| 1005 } | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
1006 nestedrefs.push(fdthis); |
| 0 | 1007 L1: ; |
| 1008 | |
|
84
be2ab491772e
Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
77
diff
changeset
|
1009 foreach (s; fdv.closureVars) |
| 0 | 1010 { |
| 1011 if (s == this) | |
| 1012 goto L2; | |
| 1013 } | |
| 1014 | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
1015 fdv.closureVars.push(this); |
| 0 | 1016 L2: ; |
| 1017 | |
| 1018 //printf("fdthis is %s\n", fdthis.toChars()); | |
| 1019 //printf("var %s in function %s is nested ref\n", toChars(), fdv.toChars()); | |
| 1020 } | |
| 1021 } | |
| 1022 } | |
| 1023 | |
| 72 | 1024 override Dsymbol toAlias() |
| 0 | 1025 { |
| 1026 //printf("VarDeclaration::toAlias('%s', this = %p, aliassym = %p)\n", toChars(), this, aliassym); | |
| 1027 assert(this !is aliassym); | |
| 1028 return aliassym ? aliassym.toAlias() : this; | |
| 1029 } | |
| 1030 | |
| 72 | 1031 override Symbol* toSymbol() |
| 0 | 1032 { |
| 1033 //printf("VarDeclaration.toSymbol(%s)\n", toChars()); | |
| 1034 //if (needThis()) *(char*)0=0; | |
| 1035 assert(!needThis()); | |
| 1036 if (!csym) | |
| 1037 { | |
| 1038 Symbol* s; | |
| 1039 TYPE* t; | |
| 1040 string id; | |
| 1041 | |
| 1042 if (isDataseg()) | |
| 1043 id = mangle(); | |
| 1044 else | |
| 1045 id = ident.toChars(); | |
| 1046 | |
| 1047 s = symbol_calloc(toStringz(id)); | |
| 1048 | |
| 1049 if (storage_class & (STC.STCout | STC.STCref)) | |
| 1050 { | |
| 1051 if (global.params.symdebug && storage_class & STC.STCparameter) | |
| 1052 { | |
| 1053 t = type_alloc(TYM.TYnptr); // should be TYref, but problems in back end | |
| 1054 t.Tnext = type.toCtype(); | |
| 1055 t.Tnext.Tcount++; | |
| 1056 } | |
| 1057 else | |
| 1058 t = type_fake(TYM.TYnptr); | |
| 1059 } | |
| 1060 else if (storage_class & STC.STClazy) | |
| 1061 t = type_fake(TYM.TYdelegate); // Tdelegate as C type | |
| 1062 else if (isParameter()) | |
| 1063 t = type.toCParamtype(); | |
| 1064 else | |
| 1065 t = type.toCtype(); | |
| 1066 | |
| 1067 t.Tcount++; | |
| 1068 | |
| 1069 if (isDataseg()) | |
| 1070 { | |
| 1071 if (isThreadlocal()) | |
| 1072 { | |
| 1073 /* Thread local storage | |
| 1074 */ | |
| 1075 TYPE* ts = t; | |
| 1076 ts.Tcount++; // make sure a different t is allocated | |
| 1077 type_setty(&t, t.Tty | mTY.mTYthread); | |
| 1078 ts.Tcount--; | |
| 1079 | |
| 1080 if (global.params.vtls) | |
| 1081 { | |
| 1082 string p = loc.toChars(); | |
| 1083 writef("%s: %s is thread local\n", p ? p : "", toChars()); | |
| 1084 } | |
| 1085 } | |
| 1086 | |
| 1087 s.Sclass = SC.SCextern; | |
| 1088 s.Sfl = FL.FLextern; | |
| 1089 slist_add(s); | |
| 1090 } | |
| 1091 else | |
| 1092 { | |
| 1093 s.Sclass = SC.SCauto; | |
| 1094 s.Sfl = FL.FLauto; | |
| 1095 | |
| 1096 if (nestedrefs.dim) | |
| 1097 { | |
| 1098 /* Symbol is accessed by a nested function. Make sure | |
| 1099 * it is not put in a register, and that the optimizer | |
| 1100 * assumes it is modified across function calls and pointer | |
| 1101 * dereferences. | |
| 1102 */ | |
| 1103 //printf("\tnested ref, not register\n"); | |
| 1104 type_setcv(&t, t.Tty | mTY.mTYvolatile); | |
| 1105 } | |
| 1106 } | |
| 1107 | |
| 1108 mangle_t m = 0; | |
| 1109 switch (linkage) | |
| 1110 { | |
| 1111 case LINK.LINKwindows: | |
| 1112 m = mTYman.mTYman_std; | |
| 1113 break; | |
| 1114 | |
| 1115 case LINK.LINKpascal: | |
| 1116 m = mTYman.mTYman_pas; | |
| 1117 break; | |
| 1118 | |
| 1119 case LINK.LINKc: | |
| 1120 m = mTYman.mTYman_c; | |
| 1121 break; | |
| 1122 | |
| 1123 case LINK.LINKd: | |
| 1124 m = mTYman.mTYman_d; | |
| 1125 break; | |
| 1126 | |
| 1127 case LINK.LINKcpp: | |
| 1128 m = mTYman.mTYman_cpp; | |
| 1129 break; | |
| 1130 | |
| 1131 default: | |
| 1132 writef("linkage = %d\n", linkage); | |
| 1133 assert(0); | |
| 1134 } | |
| 1135 type_setmangle(&t, m); | |
| 1136 s.Stype = t; | |
| 1137 | |
| 1138 csym = s; | |
| 1139 } | |
| 1140 return csym; | |
| 1141 } | |
| 1142 | |
| 72 | 1143 override void toObjFile(int multiobj) // compile to .obj file |
| 0 | 1144 { |
| 1145 Symbol* s; | |
| 1146 uint sz; | |
| 1147 Dsymbol parent; | |
| 1148 | |
| 1149 //printf("VarDeclaration.toObjFile(%p '%s' type=%s) protection %d\n", this, toChars(), type.toChars(), protection); | |
| 1150 //printf("\talign = %d\n", type.alignsize()); | |
| 1151 | |
| 1152 if (aliassym) | |
| 1153 { | |
| 1154 toAlias().toObjFile(0); | |
| 1155 return; | |
| 1156 } | |
| 1157 | |
| 1158 version (DMDV2) { | |
| 1159 // Do not store variables we cannot take the address of | |
| 1160 if (!canTakeAddressOf()) | |
| 1161 { | |
| 1162 return; | |
| 1163 } | |
| 1164 } | |
| 1165 | |
| 1166 if (isDataseg() && !(storage_class & STC.STCextern)) | |
| 1167 { | |
| 1168 s = toSymbol(); | |
| 1169 sz = cast(uint)type.size(); | |
| 1170 | |
| 1171 parent = this.toParent(); | |
| 1172 /// version (DMDV1) { /* private statics should still get a global symbol, in case | |
| 1173 /// * another module inlines a function that references it. | |
| 1174 /// */ | |
| 1175 /// if (/*protection == PROT.PROTprivate ||*/ | |
| 1176 /// !parent || parent.ident == null || parent.isFuncDeclaration()) | |
| 1177 /// { | |
| 1178 /// s.Sclass = SC.SCstatic; | |
| 1179 /// } | |
| 1180 /// else | |
| 1181 /// } | |
| 1182 { | |
| 1183 if (storage_class & STC.STCcomdat) | |
| 1184 s.Sclass = SC.SCcomdat; | |
| 1185 else | |
| 1186 s.Sclass = SC.SCglobal; | |
| 1187 | |
| 1188 do | |
| 1189 { | |
| 1190 /* Global template data members need to be in comdat's | |
| 1191 * in case multiple .obj files instantiate the same | |
| 1192 * template with the same types. | |
| 1193 */ | |
| 1194 if (parent.isTemplateInstance() && !parent.isTemplateMixin()) | |
| 1195 { | |
| 1196 version (DMDV1) { | |
| 1197 /* These symbol constants have already been copied, | |
| 1198 * so no reason to output them. | |
| 1199 * Note that currently there is no way to take | |
| 1200 * the address of such a const. | |
| 1201 */ | |
| 1202 if (isConst() && type.toBasetype().ty != TY.Tsarray && init && init.isExpInitializer()) | |
| 1203 return; | |
| 1204 } | |
| 1205 s.Sclass = SC.SCcomdat; | |
| 1206 break; | |
| 1207 } | |
| 1208 parent = parent.parent; | |
| 1209 } while (parent); | |
| 1210 } | |
| 1211 | |
| 1212 s.Sfl = FL.FLdata; | |
| 1213 | |
| 1214 if (init) | |
| 1215 { | |
| 1216 s.Sdt = init.toDt(); | |
| 1217 | |
| 1218 // Look for static array that is block initialized | |
| 1219 Type tb; | |
| 1220 ExpInitializer ie = init.isExpInitializer(); | |
| 1221 | |
| 1222 tb = type.toBasetype(); | |
| 1223 if (tb.ty == TY.Tsarray && ie | |
| 1224 && !tb.nextOf().equals(ie.exp.type.toBasetype().nextOf()) | |
| 1225 && ie.exp.implicitConvTo(tb.nextOf())) | |
| 1226 { | |
| 1227 int dim = cast(int)(cast(TypeSArray)tb).dim.toInteger(); | |
| 1228 | |
| 1229 // Duplicate Sdt 'dim-1' times, as we already have the first one | |
| 1230 while (--dim > 0) | |
| 1231 { | |
| 1232 ie.exp.toDt(&s.Sdt); | |
| 1233 } | |
| 1234 } | |
| 1235 } | |
| 1236 else if (storage_class & STC.STCextern) | |
| 1237 { | |
| 1238 s.Sclass = SC.SCextern; | |
| 1239 s.Sfl = FL.FLextern; | |
| 1240 s.Sdt = null; | |
| 1241 // BUG: if isExport(), shouldn't we make it dllimport? | |
| 1242 return; | |
| 1243 } | |
| 1244 else | |
| 1245 { | |
| 1246 type.toDt(&s.Sdt); | |
| 1247 } | |
| 1248 dt_optimize(s.Sdt); | |
| 1249 | |
| 1250 // See if we can convert a comdat to a comdef, | |
| 1251 // which saves on exe file space. | |
| 1252 if (s.Sclass == SC.SCcomdat && | |
| 1253 s.Sdt && | |
| 1254 s.Sdt.dt == DT.DT_azeros && | |
| 1255 s.Sdt.DTnext is null && | |
| 1256 !isThreadlocal()) | |
| 1257 { | |
| 1258 s.Sclass = SC.SCglobal; | |
| 1259 s.Sdt.dt = DT.DT_common; | |
| 1260 } | |
| 1261 | |
| 1262 version (ELFOBJ_OR_MACHOBJ) { // Burton | |
| 1263 if (s.Sdt && s.Sdt.dt == DT.DT_azeros && s.Sdt.DTnext is null) | |
| 1264 s.Sseg = Segment.UDATA; | |
| 1265 else | |
| 1266 s.Sseg = Segment.DATA; | |
| 1267 } | |
| 1268 if (sz) | |
| 1269 { | |
| 1270 outdata(s); | |
| 1271 if (isExport()) | |
| 1272 obj_export(s, 0); | |
| 1273 } | |
| 1274 } | |
| 1275 } | |
| 1276 | |
| 72 | 1277 override int cvMember(ubyte* p) |
| 0 | 1278 { |
| 1279 assert(false); | |
| 1280 } | |
| 1281 | |
| 1282 // Eliminate need for dynamic_cast | |
| 72 | 1283 override VarDeclaration isVarDeclaration() { return this; } |
|
16
5c9b78899f5d
Implemented methods for Tuples, fixed some linking issues.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
1284 } |
|
84
be2ab491772e
Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
77
diff
changeset
|
1285 |
|
be2ab491772e
Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
77
diff
changeset
|
1286 alias Vector!VarDeclaration VarDeclarations; |