Mercurial > projects > ddmd
annotate dmd/TypeStruct.d @ 187:b0d41ff5e0df
Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
| author | Abscissa |
|---|---|
| date | Tue, 07 Jun 2011 23:37:34 -0400 |
| parents | e3afd1303184 |
| children |
| rev | line source |
|---|---|
| 0 | 1 module dmd.TypeStruct; |
| 2 | |
| 114 | 3 import dmd.common; |
| 0 | 4 import dmd.Type; |
| 55 | 5 import dmd.TypeInstance; |
| 0 | 6 import dmd.StructDeclaration; |
| 7 import dmd.Declaration; | |
| 8 import dmd.STC; | |
| 9 import dmd.MOD; | |
| 10 import dmd.OutBuffer; | |
| 11 import dmd.DotVarExp; | |
| 12 import dmd.TemplateMixin; | |
| 13 import dmd.DotTemplateExp; | |
| 14 import dmd.DsymbolExp; | |
| 15 import dmd.TypeExp; | |
| 16 import dmd.EnumMember; | |
| 17 import dmd.Id; | |
| 18 import dmd.DotIdExp; | |
| 19 import dmd.ScopeExp; | |
| 20 import dmd.TupleExp; | |
| 21 import dmd.TemplateDeclaration; | |
| 22 import dmd.OverloadSet; | |
| 23 import dmd.Import; | |
| 24 import dmd.DotExp; | |
| 25 import dmd.ErrorExp; | |
| 26 import dmd.Loc; | |
| 27 import dmd.Scope; | |
| 28 import dmd.Dsymbol; | |
| 29 import dmd.HdrGenState; | |
| 30 import dmd.Expression; | |
| 31 import dmd.Identifier; | |
| 32 import dmd.MATCH; | |
| 33 import dmd.ArrayTypes; | |
| 55 | 34 import dmd.DYNCAST; |
| 0 | 35 import dmd.TemplateInstance; |
| 36 import dmd.FuncDeclaration; | |
| 37 import dmd.VarExp; | |
| 38 import dmd.CommaExp; | |
| 39 import dmd.ThisExp; | |
| 135 | 40 import dmd.StructLiteralExp; |
| 0 | 41 import dmd.SymbolDeclaration; |
| 42 import dmd.TypeInfoDeclaration; | |
| 43 import dmd.TypeInfoStructDeclaration; | |
| 44 import dmd.TY; | |
| 45 import dmd.TOK; | |
| 46 import dmd.Global; | |
| 47 import dmd.VarDeclaration; | |
| 48 import dmd.Util; | |
| 49 import dmd.expression.Util; | |
| 50 | |
| 51 import dmd.backend.TYPE; | |
| 52 import dmd.backend.dt_t; | |
| 53 import dmd.backend.Symbol; | |
| 54 import dmd.backend.Util; | |
| 55 import dmd.backend.STR; | |
| 56 import dmd.backend.TYM; | |
| 57 import dmd.backend.Classsym; | |
| 58 import dmd.backend.SC; | |
| 59 import dmd.backend.LIST; | |
| 60 | |
| 61 import std.string : toStringz; | |
| 62 | |
|
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Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
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63 import dmd.DDMDExtensions; |
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Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
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64 |
| 0 | 65 class TypeStruct : Type |
| 66 { | |
|
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Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
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67 mixin insertMemberExtension!(typeof(this)); |
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Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
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68 |
| 0 | 69 StructDeclaration sym; |
| 70 | |
| 71 this(StructDeclaration sym) | |
| 72 { | |
| 178 | 73 register(); |
| 0 | 74 super(TY.Tstruct); |
| 75 this.sym = sym; | |
| 76 } | |
| 72 | 77 override ulong size(Loc loc) |
| 0 | 78 { |
| 79 return sym.size(loc); | |
| 80 } | |
| 174 | 81 |
| 72 | 82 override uint alignsize() |
| 0 | 83 { |
| 84 uint sz; | |
| 85 | |
| 86 sym.size(Loc(0)); // give error for forward references | |
| 87 sz = sym.alignsize; | |
| 88 if (sz > sym.structalign) | |
| 89 sz = sym.structalign; | |
| 90 return sz; | |
| 91 } | |
| 174 | 92 |
| 72 | 93 override string toChars() |
| 0 | 94 { |
| 55 | 95 //printf("sym.parent: %s, deco = %s\n", sym.parent.toChars(), deco); |
| 96 if (mod) | |
| 97 return Type.toChars(); | |
| 98 TemplateInstance ti = sym.parent.isTemplateInstance(); | |
| 99 if (ti && ti.toAlias() == sym) | |
| 100 { | |
| 101 return ti.toChars(); | |
| 102 } | |
| 103 return sym.toChars(); | |
| 0 | 104 } |
| 174 | 105 |
| 72 | 106 override Type syntaxCopy() |
| 0 | 107 { |
| 108 assert(false); | |
| 109 } | |
| 174 | 110 |
| 72 | 111 override Type semantic(Loc loc, Scope sc) |
| 0 | 112 { |
| 113 //printf("TypeStruct.semantic('%s')\n", sym.toChars()); | |
| 114 | |
| 115 /* Cannot do semantic for sym because scope chain may not | |
| 116 * be right. | |
| 117 */ | |
| 118 //sym.semantic(sc); | |
| 119 | |
| 120 return merge(); | |
| 121 } | |
| 174 | 122 |
| 72 | 123 override Dsymbol toDsymbol(Scope sc) |
| 0 | 124 { |
| 125 return sym; | |
| 126 } | |
| 174 | 127 |
| 72 | 128 override void toDecoBuffer(OutBuffer buf, int flag) |
| 0 | 129 { |
| 130 string name = sym.mangle(); | |
| 131 //printf("TypeStruct.toDecoBuffer('%s') = '%s'\n", toChars(), name); | |
| 132 Type.toDecoBuffer(buf, flag); | |
| 133 buf.printf("%s", name); | |
| 134 } | |
| 174 | 135 |
| 72 | 136 override void toCBuffer2(OutBuffer buf, HdrGenState* hgs, MOD mod) |
| 0 | 137 { |
| 138 if (mod != this.mod) | |
| 174 | 139 { |
| 0 | 140 toCBuffer3(buf, hgs, mod); |
| 141 return; | |
| 142 } | |
| 143 TemplateInstance ti = sym.parent.isTemplateInstance(); | |
| 144 if (ti && ti.toAlias() == sym) | |
| 145 buf.writestring(ti.toChars()); | |
| 146 else | |
| 147 buf.writestring(sym.toChars()); | |
| 148 } | |
| 174 | 149 |
| 72 | 150 override Expression dotExp(Scope sc, Expression e, Identifier ident) |
| 0 | 151 { |
| 152 uint offset; | |
| 153 | |
| 154 VarDeclaration v; | |
| 155 Dsymbol s; | |
| 156 DotVarExp de; | |
| 157 Declaration d; | |
| 158 | |
| 159 version (LOGDOTEXP) { | |
| 160 printf("TypeStruct.dotExp(e = '%s', ident = '%s')\n", e.toChars(), ident.toChars()); | |
| 161 } | |
| 162 if (!sym.members) | |
| 163 { | |
| 164 error(e.loc, "struct %s is forward referenced", sym.toChars()); | |
| 165 return new ErrorExp(); | |
| 166 } | |
| 167 | |
| 168 /* If e.tupleof | |
| 169 */ | |
| 170 if (ident is Id.tupleof_) | |
| 171 { | |
| 172 /* Create a TupleExp out of the fields of the struct e: | |
| 173 * (e.field0, e.field1, e.field2, ...) | |
| 174 */ | |
| 175 e = e.semantic(sc); // do this before turning on noaccesscheck | |
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176 auto exps = new Expressions; |
| 0 | 177 exps.reserve(sym.fields.dim); |
| 178 for (size_t i = 0; i < sym.fields.dim; i++) | |
| 174 | 179 { |
| 79 | 180 VarDeclaration v2 = cast(VarDeclaration)sym.fields[i]; |
| 0 | 181 Expression fe = new DotVarExp(e.loc, e, v2); |
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182 exps.push(fe); |
| 0 | 183 } |
| 184 e = new TupleExp(e.loc, exps); | |
| 185 sc = sc.push(); | |
| 186 sc.noaccesscheck = 1; | |
| 187 e = e.semantic(sc); | |
| 188 sc.pop(); | |
| 189 return e; | |
| 190 } | |
| 191 | |
| 192 if (e.op == TOK.TOKdotexp) | |
| 174 | 193 { |
| 0 | 194 DotExp de2 = cast(DotExp)e; |
| 195 | |
| 196 if (de2.e1.op == TOK.TOKimport) | |
| 197 { | |
| 198 assert(0); // cannot find a case where this happens; leave | |
| 199 // assert in until we do | |
| 200 ScopeExp se = cast(ScopeExp)de2.e1; | |
| 201 | |
| 202 s = se.sds.search(e.loc, ident, 0); | |
| 203 e = de2.e1; | |
| 204 goto L1; | |
| 205 } | |
| 206 } | |
| 207 | |
| 208 s = sym.search(e.loc, ident, 0); | |
| 209 L1: | |
| 210 if (!s) | |
| 211 { | |
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212 return noMember(sc, e, ident); |
| 0 | 213 } |
| 214 | |
| 215 if (!s.isFuncDeclaration()) // because of overloading | |
| 216 s.checkDeprecated(e.loc, sc); | |
| 217 | |
| 218 s = s.toAlias(); | |
| 219 | |
| 220 v = s.isVarDeclaration(); | |
| 221 if (v && !v.isDataseg()) | |
| 222 { | |
| 223 Expression ei = v.getConstInitializer(); | |
| 224 if (ei) | |
| 174 | 225 { |
| 0 | 226 e = ei.copy(); // need to copy it if it's a StringExp |
| 227 e = e.semantic(sc); | |
| 228 return e; | |
| 229 } | |
| 230 } | |
| 231 | |
| 232 if (s.getType()) | |
| 233 { | |
| 234 //return new DotTypeExp(e.loc, e, s); | |
| 235 return new TypeExp(e.loc, s.getType()); | |
| 236 } | |
| 237 | |
| 238 EnumMember em = s.isEnumMember(); | |
| 239 if (em) | |
| 240 { | |
| 241 assert(em.value); | |
| 242 return em.value.copy(); | |
| 243 } | |
| 244 | |
| 245 TemplateMixin tm = s.isTemplateMixin(); | |
| 246 if (tm) | |
| 247 { | |
| 248 Expression de2 = new DotExp(e.loc, e, new ScopeExp(e.loc, tm)); | |
| 249 de2.type = e.type; | |
| 250 return de2; | |
| 251 } | |
| 252 | |
| 253 TemplateDeclaration td = s.isTemplateDeclaration(); | |
| 254 if (td) | |
| 255 { | |
| 256 e = new DotTemplateExp(e.loc, e, td); | |
| 257 e.semantic(sc); | |
| 258 return e; | |
| 259 } | |
| 260 | |
| 261 TemplateInstance ti = s.isTemplateInstance(); | |
| 262 if (ti) | |
| 174 | 263 { |
| 0 | 264 if (!ti.semanticRun) |
| 265 ti.semantic(sc); | |
| 266 s = ti.inst.toAlias(); | |
| 267 if (!s.isTemplateInstance()) | |
| 268 goto L1; | |
| 269 Expression de2 = new DotExp(e.loc, e, new ScopeExp(e.loc, ti)); | |
| 270 de2.type = e.type; | |
| 271 return de2; | |
| 272 } | |
| 273 | |
| 274 Import timp = s.isImport(); | |
| 275 if (timp) | |
| 276 { | |
| 277 e = new DsymbolExp(e.loc, s, 0); | |
| 278 e = e.semantic(sc); | |
| 279 return e; | |
| 280 } | |
| 281 | |
| 282 OverloadSet o = s.isOverloadSet(); | |
| 283 if (o) | |
| 174 | 284 { |
| 0 | 285 /* We really should allow this, triggered by: |
| 286 * template c() | |
| 287 * { | |
| 288 * void a(); | |
| 289 * void b () { this.a(); } | |
| 290 * } | |
| 291 * struct S | |
| 292 * { | |
| 293 * mixin c; | |
| 294 * mixin c; | |
| 295 * } | |
| 296 * alias S e; | |
| 297 */ | |
| 298 error(e.loc, "overload set for %s.%s not allowed in struct declaration", e.toChars(), ident.toChars()); | |
| 299 return new ErrorExp(); | |
| 300 } | |
| 301 | |
| 302 d = s.isDeclaration(); | |
| 303 | |
| 304 debug { | |
| 305 if (!d) | |
| 306 writef("d = %s '%s'\n", s.kind(), s.toChars()); | |
| 307 } | |
| 308 assert(d); | |
| 309 | |
| 310 if (e.op == TOK.TOKtype) | |
| 174 | 311 { |
| 0 | 312 FuncDeclaration fd = sc.func; |
| 313 | |
| 314 if (d.isTupleDeclaration()) | |
| 315 { | |
| 316 e = new TupleExp(e.loc, d.isTupleDeclaration()); | |
| 317 e = e.semantic(sc); | |
| 318 return e; | |
| 319 } | |
| 320 | |
| 321 if (d.needThis() && fd && fd.vthis) | |
| 322 { | |
| 323 e = new DotVarExp(e.loc, new ThisExp(e.loc), d); | |
| 324 e = e.semantic(sc); | |
| 325 return e; | |
| 326 } | |
| 327 | |
| 328 return new VarExp(e.loc, d, 1); | |
| 329 } | |
| 330 | |
| 331 if (d.isDataseg()) | |
| 332 { | |
| 333 // (e, d) | |
| 334 accessCheck(e.loc, sc, e, d); | |
| 335 VarExp ve = new VarExp(e.loc, d); | |
| 336 e = new CommaExp(e.loc, e, ve); | |
| 337 e.type = d.type; | |
| 338 return e; | |
| 339 } | |
| 340 | |
| 341 if (v) | |
| 342 { | |
| 343 if (v.toParent() != sym) | |
| 344 sym.error(e.loc, "'%s' is not a member", v.toChars()); | |
| 345 | |
| 346 // *(&e + offset) | |
| 347 accessCheck(e.loc, sc, e, d); | |
| 348 static if (false) { | |
| 349 Expression b = new AddrExp(e.loc, e); | |
| 350 b.type = e.type.pointerTo(); | |
| 351 b = new AddExp(e.loc, b, new IntegerExp(e.loc, v.offset, Type.tint32)); | |
| 352 b.type = v.type.pointerTo(); | |
| 353 b = new PtrExp(e.loc, b); | |
| 354 b.type = v.type.addMod(e.type.mod); | |
| 355 return b; | |
| 356 } | |
| 357 } | |
| 358 | |
| 359 de = new DotVarExp(e.loc, e, d); | |
| 360 return de.semantic(sc); | |
| 361 } | |
| 174 | 362 |
| 72 | 363 override uint memalign(uint salign) |
| 0 | 364 { |
| 365 sym.size(Loc(0)); // give error for forward references | |
| 366 return sym.structalign; | |
| 367 } | |
| 174 | 368 |
| 72 | 369 override Expression defaultInit(Loc loc) |
| 0 | 370 { |
| 371 version (LOGDEFAULTINIT) { | |
| 372 printf("TypeStruct::defaultInit() '%s'\n", toChars()); | |
| 373 } | |
| 135 | 374 Symbol *s = sym.toInitializer(); |
| 375 Declaration d = new SymbolDeclaration(sym.loc, s, sym); | |
| 0 | 376 assert(d); |
| 377 d.type = this; | |
| 378 return new VarExp(sym.loc, d); | |
| 379 } | |
| 174 | 380 |
| 135 | 381 /*************************************** |
| 382 * Use when we prefer the default initializer to be a literal, | |
| 383 * rather than a global immutable variable. | |
| 384 */ | |
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385 override Expression defaultInitLiteral(Loc loc) |
| 135 | 386 { |
| 387 version (LOGDEFAULTINIT) { | |
| 388 printf("TypeStruct::defaultInitLiteral() '%s'\n", toChars()); | |
| 389 } | |
| 390 auto structelems = new Expressions(); | |
| 391 structelems.setDim(sym.fields.dim); | |
| 392 for (size_t j = 0; j < structelems.dim; j++) | |
| 393 { | |
| 394 auto vd = cast(VarDeclaration)(sym.fields[j]); | |
| 395 Expression e; | |
| 396 if (vd.init) | |
| 397 e = vd.init.toExpression(); | |
| 398 else | |
| 174 | 399 e = vd.type.defaultInitLiteral(Loc(0)); |
| 135 | 400 structelems[j] = e; |
| 401 } | |
| 402 auto structinit = new StructLiteralExp(loc, cast(StructDeclaration)sym, structelems); | |
| 403 // Why doesn't the StructLiteralExp constructor do this, when | |
| 404 // sym->type != NULL ? | |
| 405 structinit.type = sym.type; | |
| 406 return structinit; | |
| 407 } | |
| 408 | |
| 72 | 409 override bool isZeroInit(Loc loc) |
| 0 | 410 { |
| 411 return sym.zeroInit; | |
| 412 } | |
| 174 | 413 |
| 73 | 414 override bool isAssignable() |
| 0 | 415 { |
| 416 /* If any of the fields are const or invariant, | |
| 417 * then one cannot assign this struct. | |
| 418 */ | |
| 419 for (size_t i = 0; i < sym.fields.dim; i++) | |
| 174 | 420 { |
| 79 | 421 VarDeclaration v = cast(VarDeclaration)sym.fields[i]; |
| 135 | 422 if (v.isConst() || v.isImmutable()) |
| 0 | 423 return false; |
| 424 } | |
| 425 return true; | |
| 426 } | |
| 174 | 427 |
| 72 | 428 override bool checkBoolean() |
| 0 | 429 { |
| 430 return false; | |
| 431 } | |
| 174 | 432 |
| 72 | 433 override dt_t** toDt(dt_t** pdt) |
| 0 | 434 { |
| 435 sym.toDt(pdt); | |
| 436 return pdt; | |
| 437 } | |
| 174 | 438 |
| 72 | 439 override MATCH deduceType(Scope sc, Type tparam, TemplateParameters parameters, Objects dedtypes) |
| 0 | 440 { |
| 55 | 441 //printf("TypeStruct.deduceType()\n"); |
| 442 //printf("\tthis.parent = %s, ", sym.parent.toChars()); print(); | |
| 443 //printf("\ttparam = %d, ", tparam.ty); tparam.print(); | |
| 444 | |
| 445 /* If this struct is a template struct, and we're matching | |
| 446 * it against a template instance, convert the struct type | |
| 447 * to a template instance, too, and try again. | |
| 448 */ | |
| 449 TemplateInstance ti = sym.parent.isTemplateInstance(); | |
| 450 | |
| 451 if (tparam && tparam.ty == Tinstance) | |
| 452 { | |
| 453 if (ti && ti.toAlias() == sym) | |
| 454 { | |
| 455 TypeInstance t = new TypeInstance(Loc(0), ti); | |
| 456 return t.deduceType(sc, tparam, parameters, dedtypes); | |
| 457 } | |
| 458 | |
| 459 /* Match things like: | |
| 460 * S!(T).foo | |
| 461 */ | |
| 462 TypeInstance tpi = cast(TypeInstance)tparam; | |
| 463 if (tpi.idents.dim) | |
| 464 { Identifier id = cast(Identifier)tpi.idents.data[tpi.idents.dim - 1]; | |
| 465 if (id.dyncast() == DYNCAST.DYNCAST_IDENTIFIER && sym.ident.equals(id)) | |
| 466 { | |
| 467 Type tparent = sym.parent.getType(); | |
| 468 if (tparent) | |
| 469 { | |
| 470 /* Slice off the .foo in S!(T).foo | |
| 471 */ | |
| 472 tpi.idents.dim--; | |
| 473 MATCH m = tparent.deduceType(sc, tpi, parameters, dedtypes); | |
| 474 tpi.idents.dim++; | |
| 475 return m; | |
| 476 } | |
| 477 } | |
| 478 } | |
| 479 } | |
| 480 | |
| 481 // Extra check | |
| 482 if (tparam && tparam.ty == Tstruct) | |
| 483 { | |
| 484 TypeStruct tp = cast(TypeStruct)tparam; | |
| 485 | |
| 486 if (sym != tp.sym) | |
| 487 return MATCHnomatch; | |
| 488 } | |
| 489 return Type.deduceType(sc, tparam, parameters, dedtypes); | |
| 0 | 490 } |
| 174 | 491 |
| 72 | 492 override TypeInfoDeclaration getTypeInfoDeclaration() |
| 0 | 493 { |
| 494 return new TypeInfoStructDeclaration(this); | |
| 495 } | |
| 174 | 496 |
| 72 | 497 override bool hasPointers() |
| 0 | 498 { |
| 135 | 499 // Probably should cache this information in sym rather than recompute |
| 0 | 500 StructDeclaration s = sym; |
| 501 | |
| 502 sym.size(Loc(0)); // give error for forward references | |
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503 foreach (VarDeclaration sm; s.fields) |
| 0 | 504 { |
| 505 Declaration d = sm.isDeclaration(); | |
| 506 if (d.storage_class & STC.STCref || d.hasPointers()) | |
| 507 return true; | |
| 508 } | |
| 509 | |
| 510 return false; | |
| 511 } | |
| 174 | 512 |
| 72 | 513 override MATCH implicitConvTo(Type to) |
| 0 | 514 { |
| 515 MATCH m; | |
| 516 | |
| 517 //printf("TypeStruct.implicitConvTo(%s => %s)\n", toChars(), to.toChars()); | |
| 518 if (ty == to.ty && sym == (cast(TypeStruct)to).sym) | |
| 174 | 519 { |
| 0 | 520 m = MATCHexact; // exact match |
| 521 if (mod != to.mod) | |
| 522 { | |
| 135 | 523 if (MODimplicitConv(mod, to.mod)) |
| 0 | 524 m = MATCHconst; |
| 525 else | |
| 526 { /* Check all the fields. If they can all be converted, | |
| 527 * allow the conversion. | |
| 528 */ | |
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changeset
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529 foreach (VarDeclaration v; sym.fields) |
| 174 | 530 { |
| 0 | 531 assert(v && v.storage_class & STCfield); |
| 532 | |
| 533 // 'from' type | |
| 534 Type tvf = v.type.addMod(mod); | |
| 535 | |
| 536 // 'to' type | |
| 537 Type tv = v.type.castMod(to.mod); | |
| 538 | |
| 539 //printf("\t%s => %s, match = %d\n", v.type.toChars(), tv.toChars(), tvf.implicitConvTo(tv)); | |
| 540 if (tvf.implicitConvTo(tv) < MATCHconst) | |
| 541 return MATCHnomatch; | |
| 542 } | |
| 543 m = MATCHconst; | |
| 544 } | |
| 545 } | |
| 546 } | |
| 547 else if (sym.aliasthis) | |
| 548 { | |
| 549 m = MATCHnomatch; | |
| 550 Declaration d = sym.aliasthis.isDeclaration(); | |
| 551 if (d) | |
| 174 | 552 { |
| 0 | 553 assert(d.type); |
| 554 Type t = d.type.addMod(mod); | |
| 555 m = t.implicitConvTo(to); | |
| 556 } | |
| 557 } | |
| 558 else | |
| 559 m = MATCHnomatch; // no match | |
| 560 return m; | |
| 561 } | |
| 174 | 562 |
| 72 | 563 override MATCH constConv(Type to) |
| 0 | 564 { |
| 565 if (equals(to)) | |
| 566 return MATCHexact; | |
| 135 | 567 if (ty == to.ty && sym == (cast(TypeStruct)to).sym && |
| 568 MODimplicitConv(mod, to.mod)) | |
| 0 | 569 return MATCHconst; |
| 570 return MATCHnomatch; | |
| 571 } | |
| 174 | 572 |
| 72 | 573 override Type toHeadMutable() |
| 0 | 574 { |
| 575 assert(false); | |
| 576 } | |
| 174 | 577 |
| 0 | 578 version (CPP_MANGLE) { |
| 579 void toCppMangle(OutBuffer buf, CppMangleState* cms) | |
| 580 { | |
| 581 assert(false); | |
| 582 } | |
| 583 } | |
| 584 | |
| 72 | 585 override type* toCtype() |
| 0 | 586 { |
| 587 type* t; | |
| 588 Symbol* s; | |
| 589 | |
| 590 if (ctype) | |
| 591 return ctype; | |
| 592 | |
| 593 //printf("TypeStruct.toCtype() '%s'\n", sym.toChars()); | |
| 594 s = symbol_calloc(toStringz(sym.toPrettyChars())); | |
| 595 s.Sclass = SC.SCstruct; | |
| 596 s.Sstruct = struct_calloc(); | |
| 597 s.Sstruct.Sflags |= 0; /// huh? | |
| 598 s.Sstruct.Salignsize = sym.alignsize; | |
| 599 s.Sstruct.Sstructalign = cast(ubyte)sym.structalign; | |
| 600 s.Sstruct.Sstructsize = sym.structsize; | |
| 601 | |
| 602 if (sym.isUnionDeclaration()) | |
| 603 s.Sstruct.Sflags |= STR.STRunion; | |
| 604 | |
| 605 t = type_alloc(TYM.TYstruct); | |
| 606 t.Ttag = cast(Classsym*)s; // structure tag name | |
| 607 t.Tcount++; | |
| 608 s.Stype = t; | |
| 609 slist_add(s); | |
| 610 ctype = t; | |
| 611 | |
| 612 /* Add in fields of the struct | |
| 613 * (after setting ctype to avoid infinite recursion) | |
| 614 */ | |
| 615 if (global.params.symdebug) { | |
| 616 for (int i = 0; i < sym.fields.dim; i++) | |
| 174 | 617 { |
| 79 | 618 VarDeclaration v = cast(VarDeclaration)sym.fields[i]; |
| 0 | 619 |
| 620 Symbol* s2 = symbol_name(toStringz(v.ident.toChars()), SC.SCmember, v.type.toCtype()); | |
| 621 s2.Smemoff = v.offset; | |
| 622 list_append(&s.Sstruct.Sfldlst, s2); | |
| 623 } | |
| 624 } | |
| 625 | |
| 626 //printf("t = %p, Tflags = x%x\n", t, t.Tflags); | |
| 627 return t; | |
| 628 } | |
| 72 | 629 } |