Mercurial > projects > ddmd
annotate dmd/StructDeclaration.d @ 129:010eb8f0e18d
further work on dmd test suite
| author | korDen |
|---|---|
| date | Sun, 05 Sep 2010 15:32:22 +0400 |
| parents | 1765f3ef917d |
| children | 60bb0fe4563e |
| rev | line source |
|---|---|
| 0 | 1 module dmd.StructDeclaration; |
| 2 | |
| 114 | 3 import dmd.common; |
| 0 | 4 import dmd.AggregateDeclaration; |
| 5 import dmd.FuncDeclaration; | |
| 6 import dmd.DeclarationExp; | |
| 7 import dmd.VoidInitializer; | |
| 8 import dmd.Initializer; | |
| 9 import dmd.ExpInitializer; | |
| 10 import dmd.TOK; | |
| 11 import dmd.Statement; | |
| 12 import dmd.VarExp; | |
| 13 import dmd.CompoundStatement; | |
| 14 import dmd.AssignExp; | |
| 15 import dmd.DotVarExp; | |
| 16 import dmd.AddrExp; | |
| 17 import dmd.CastExp; | |
| 18 import dmd.PostBlitDeclaration; | |
| 19 import dmd.Lexer; | |
| 20 import dmd.ExpStatement; | |
| 21 import dmd.DotIdExp; | |
| 22 import dmd.TypeSArray; | |
| 23 import dmd.ThisExp; | |
| 24 import dmd.ThisDeclaration; | |
| 25 import dmd.TypeFunction; | |
| 26 import dmd.Argument; | |
| 27 import dmd.Id; | |
| 28 import dmd.TY; | |
| 29 import dmd.LINK; | |
| 30 import dmd.Type; | |
| 31 import dmd.DsymbolTable; | |
| 32 import dmd.ArrayTypes; | |
| 33 import dmd.Loc; | |
| 34 import dmd.STC; | |
| 35 import dmd.Identifier; | |
| 36 import dmd.TemplateInstance; | |
| 37 import dmd.Dsymbol; | |
| 38 import dmd.Scope; | |
| 39 import dmd.OutBuffer; | |
| 40 import dmd.HdrGenState; | |
| 41 import dmd.PROT; | |
| 42 import dmd.TypeStruct; | |
| 43 import dmd.expression.Util; | |
| 44 import dmd.Expression; | |
| 45 import dmd.IdentifierExp; | |
| 46 import dmd.PtrExp; | |
| 47 import dmd.CallExp; | |
| 48 import dmd.ReturnStatement; | |
| 49 import dmd.ScopeDsymbol; | |
| 50 import dmd.Module; | |
| 51 import dmd.VarDeclaration; | |
| 52 import dmd.InvariantDeclaration; | |
| 53 import dmd.NewDeclaration; | |
| 54 import dmd.DeleteDeclaration; | |
| 55 import dmd.Global; | |
| 56 | |
| 57 import dmd.backend.dt_t; | |
| 58 import dmd.backend.Util; | |
| 59 import dmd.backend.SC; | |
| 60 import dmd.backend.DT; | |
| 61 import dmd.backend.FL; | |
| 62 import dmd.backend.glue; | |
| 63 | |
| 129 | 64 import std.stdio; |
| 65 | |
| 0 | 66 class StructDeclaration : AggregateDeclaration |
| 67 { | |
| 68 bool zeroInit; // true if initialize with 0 fill | |
| 69 | |
| 70 version (DMDV2) { | |
| 71 int hasIdentityAssign; // !=0 if has identity opAssign | |
| 72 FuncDeclaration cpctor; // generated copy-constructor, if any | |
| 73 | |
| 74 FuncDeclarations postblits; // Array of postblit functions | |
| 75 FuncDeclaration postblit; // aggregate postblit | |
| 76 } | |
| 77 | |
| 78 this(Loc loc, Identifier id) | |
| 79 { | |
| 80 super(loc, id); | |
| 81 | |
| 82 // For forward references | |
| 83 type = new TypeStruct(this); | |
| 84 | |
| 85 postblits = new FuncDeclarations(); /// | |
| 86 } | |
| 87 | |
| 72 | 88 override Dsymbol syntaxCopy(Dsymbol s) |
| 0 | 89 { |
| 49 | 90 StructDeclaration sd; |
| 91 | |
| 92 if (s) | |
| 93 sd = cast(StructDeclaration)s; | |
| 94 else | |
| 95 sd = new StructDeclaration(loc, ident); | |
| 96 ScopeDsymbol.syntaxCopy(sd); | |
| 97 return sd; | |
| 0 | 98 } |
| 99 | |
| 72 | 100 override void semantic(Scope sc) |
| 0 | 101 { |
| 102 Scope sc2; | |
| 103 | |
| 104 //printf("+StructDeclaration.semantic(this=%p, '%s')\n", this, toChars()); | |
| 105 | |
| 106 //static int count; if (++count == 20) *(char*)0=0; | |
| 107 | |
| 108 assert(type); | |
| 109 if (!members) // if forward reference | |
| 110 return; | |
| 111 | |
| 112 if (symtab) | |
| 113 { if (!scope_) | |
| 114 return; // semantic() already completed | |
| 115 } | |
| 116 else | |
| 117 symtab = new DsymbolTable(); | |
| 118 | |
| 119 Scope scx = null; | |
| 120 if (scope_) | |
| 121 { sc = scope_; | |
| 122 scx = scope_; // save so we don't make redundant copies | |
| 123 scope_ = null; | |
| 124 } | |
| 125 | |
| 126 parent = sc.parent; | |
| 127 type = type.semantic(loc, sc); | |
| 128 version (STRUCTTHISREF) { | |
| 129 handle = type; | |
| 130 } else { | |
| 131 handle = type.pointerTo(); | |
| 132 } | |
| 133 structalign = sc.structalign; | |
| 134 protection = sc.protection; | |
| 135 storage_class |= sc.stc; | |
| 136 if (sc.stc & STC.STCdeprecated) | |
| 137 isdeprecated = 1; | |
| 138 assert(!isAnonymous()); | |
| 139 if (sc.stc & STC.STCabstract) | |
| 140 error("structs, unions cannot be abstract"); | |
| 141 version (DMDV2) { | |
| 142 if (storage_class & STC.STCimmutable) | |
| 143 type = type.invariantOf(); | |
| 144 else if (storage_class & STC.STCconst) | |
| 145 type = type.constOf(); | |
| 146 else if (storage_class & STC.STCshared) | |
| 147 type = type.sharedOf(); | |
| 148 } | |
| 149 | |
| 150 if (sizeok == 0) // if not already done the addMember step | |
| 151 { | |
| 152 int hasfunctions = 0; | |
|
77
ad4792a1cfd6
more D-ification container accessing
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
74
diff
changeset
|
153 foreach(Dsymbol s; members) |
| 0 | 154 { |
| 155 //printf("adding member '%s' to '%s'\n", s.toChars(), this.toChars()); | |
| 13 | 156 s.addMember(sc, this, true); |
| 0 | 157 if (s.isFuncDeclaration()) |
| 158 hasfunctions = 1; | |
| 159 } | |
| 160 | |
| 161 // If nested struct, add in hidden 'this' pointer to outer scope | |
| 162 if (hasfunctions && !(storage_class & STC.STCstatic)) | |
| 163 { Dsymbol s = toParent2(); | |
| 164 if (s) | |
| 165 { | |
| 166 AggregateDeclaration ad = s.isAggregateDeclaration(); | |
| 167 FuncDeclaration fd = s.isFuncDeclaration(); | |
| 168 | |
| 169 TemplateInstance ti; | |
| 170 if (ad && (ti = ad.parent.isTemplateInstance()) !is null && ti.isnested || fd) | |
| 171 { isnested = true; | |
| 172 Type t; | |
| 173 if (ad) | |
| 174 t = ad.handle; | |
| 175 else if (fd) | |
| 176 { | |
| 177 AggregateDeclaration add = fd.isMember2(); | |
| 178 if (add) | |
| 179 t = add.handle; | |
| 180 else | |
| 181 t = Type.tvoidptr; | |
| 182 } | |
| 183 else | |
| 184 assert(0); | |
| 185 if (t.ty == TY.Tstruct) | |
| 186 t = Type.tvoidptr; // t should not be a ref type | |
| 187 assert(!vthis); | |
| 188 vthis = new ThisDeclaration(loc, t); | |
| 189 //vthis.storage_class |= STC.STCref; | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
72
diff
changeset
|
190 members.push(vthis); |
| 0 | 191 } |
| 192 } | |
| 193 } | |
| 194 } | |
| 195 | |
| 196 sizeok = 0; | |
| 197 sc2 = sc.push(this); | |
| 198 sc2.stc &= storage_class & STC.STC_TYPECTOR; | |
| 199 sc2.parent = this; | |
| 200 if (isUnionDeclaration()) | |
| 201 sc2.inunion = 1; | |
| 202 sc2.protection = PROT.PROTpublic; | |
| 203 sc2.explicitProtection = 0; | |
| 204 | |
| 205 int members_dim = members.dim; | |
|
77
ad4792a1cfd6
more D-ification container accessing
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
74
diff
changeset
|
206 foreach(Dsymbol s; members) |
| 0 | 207 { |
| 129 | 208 s.semantic(sc2); |
| 209 if (isUnionDeclaration()) | |
| 210 sc2.offset = 0; | |
| 0 | 211 static if (false) { |
| 129 | 212 if (sizeok == 2) |
| 213 { //printf("forward reference\n"); | |
| 214 break; | |
| 215 } | |
| 0 | 216 } |
| 129 | 217 if (auto d = s.isDeclaration()) |
| 218 { | |
| 219 if (auto t = d.type) { | |
| 220 if (t.toBasetype().ty == TY.Tstruct) { | |
| 221 auto ad = t.toDsymbol(sc).isThis(); | |
| 222 /* | |
| 223 StructDeclaration sd = cast(StructDeclaration)foo; | |
| 224 if (foo && !sd) { | |
| 225 writeln(t.classin); | |
| 226 writeln(foo.classinfo.name); | |
| 227 assert(false); | |
| 228 } | |
| 229 */ | |
| 230 if (ad && ad.isnested) | |
| 231 error("inner struct %s cannot be a field", ad.toChars()); | |
| 232 } | |
| 233 } | |
| 234 } | |
| 0 | 235 } |
| 236 | |
| 237 /* The TypeInfo_Struct is expecting an opEquals and opCmp with | |
| 238 * a parameter that is a pointer to the struct. But if there | |
| 239 * isn't one, but is an opEquals or opCmp with a value, write | |
| 240 * another that is a shell around the value: | |
| 241 * int opCmp(struct *p) { return opCmp(*p); } | |
| 242 */ | |
| 243 | |
| 244 TypeFunction tfeqptr; | |
| 245 { | |
| 129 | 246 Arguments arguments = new Arguments; |
| 247 Argument arg = new Argument(STC.STCin, handle, Id.p, null); | |
| 0 | 248 |
| 129 | 249 arguments.push(arg); |
| 250 tfeqptr = new TypeFunction(arguments, Type.tint32, 0, LINK.LINKd); | |
| 251 tfeqptr = cast(TypeFunction)tfeqptr.semantic(Loc(0), sc); | |
| 0 | 252 } |
| 253 | |
| 254 TypeFunction tfeq; | |
| 255 { | |
| 129 | 256 Arguments arguments = new Arguments; |
| 257 Argument arg = new Argument(STC.STCin, type, null, null); | |
| 0 | 258 |
| 129 | 259 arguments.push(arg); |
| 260 tfeq = new TypeFunction(arguments, Type.tint32, 0, LINK.LINKd); | |
| 261 tfeq = cast(TypeFunction)tfeq.semantic(Loc(0), sc); | |
| 0 | 262 } |
| 263 | |
| 264 Identifier id = Id.eq; | |
| 265 for (int j = 0; j < 2; j++) | |
| 266 { | |
| 267 Dsymbol s = search_function(this, id); | |
| 268 FuncDeclaration fdx = s ? s.isFuncDeclaration() : null; | |
| 269 if (fdx) | |
| 270 { FuncDeclaration fd = fdx.overloadExactMatch(tfeqptr); | |
| 271 if (!fd) | |
| 272 { fd = fdx.overloadExactMatch(tfeq); | |
| 273 if (fd) | |
| 274 { // Create the thunk, fdptr | |
| 275 FuncDeclaration fdptr = new FuncDeclaration(loc, loc, fdx.ident, STC.STCundefined, tfeqptr); | |
| 276 Expression e = new IdentifierExp(loc, Id.p); | |
| 277 e = new PtrExp(loc, e); | |
|
84
be2ab491772e
Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
79
diff
changeset
|
278 auto args = new Expressions(); |
|
be2ab491772e
Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
79
diff
changeset
|
279 args.push(e); |
| 0 | 280 e = new IdentifierExp(loc, id); |
| 281 e = new CallExp(loc, e, args); | |
| 282 fdptr.fbody = new ReturnStatement(loc, e); | |
| 283 ScopeDsymbol ss = fdx.parent.isScopeDsymbol(); | |
| 284 assert(ss); | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
72
diff
changeset
|
285 ss.members.push(fdptr); |
| 13 | 286 fdptr.addMember(sc, ss, true); |
| 0 | 287 fdptr.semantic(sc2); |
| 288 } | |
| 289 } | |
| 290 } | |
| 291 | |
| 292 id = Id.cmp; | |
| 293 } | |
| 294 version (DMDV2) { | |
| 295 dtor = buildDtor(sc2); | |
| 296 postblit = buildPostBlit(sc2); | |
| 297 cpctor = buildCpCtor(sc2); | |
| 298 buildOpAssign(sc2); | |
| 299 } | |
| 300 | |
| 301 sc2.pop(); | |
| 302 | |
| 303 if (sizeok == 2) | |
| 304 { // semantic() failed because of forward references. | |
| 305 // Unwind what we did, and defer it for later | |
| 306 fields.setDim(0); | |
| 307 structsize = 0; | |
| 308 alignsize = 0; | |
| 309 structalign = 0; | |
| 310 | |
|
87
b17640f0e4e8
Fixed a bug with a Scope.this(Scope enclosing) being called instead of Scope.clone() method (as a copy ctor replacement)
korDen
parents:
79
diff
changeset
|
311 scope_ = scx ? scx : sc.clone(); |
| 0 | 312 scope_.setNoFree(); |
| 313 scope_.module_.addDeferredSemantic(this); | |
| 314 //printf("\tdeferring %s\n", toChars()); | |
| 315 return; | |
| 316 } | |
| 317 | |
| 318 // 0 sized struct's are set to 1 byte | |
| 319 if (structsize == 0) | |
| 320 { | |
| 321 structsize = 1; | |
| 322 alignsize = 1; | |
| 323 } | |
| 324 | |
| 325 // Round struct size up to next alignsize boundary. | |
| 326 // This will ensure that arrays of structs will get their internals | |
| 327 // aligned properly. | |
| 328 structsize = (structsize + alignsize - 1) & ~(alignsize - 1); | |
| 329 | |
| 330 sizeok = 1; | |
| 331 Module.dprogress++; | |
| 332 | |
| 333 //printf("-StructDeclaration.semantic(this=%p, '%s')\n", this, toChars()); | |
| 334 | |
| 335 // Determine if struct is all zeros or not | |
| 336 zeroInit = true; | |
|
85
8e69d041a99d
Previous commit didn't compile. Fixed.
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
84
diff
changeset
|
337 foreach (VarDeclaration vd; fields) |
| 0 | 338 { |
| 79 | 339 if (vd && !vd.isDataseg()) |
| 0 | 340 { |
| 79 | 341 if (vd.init) |
| 342 { | |
| 343 // Should examine init to see if it is really all 0's | |
| 0 | 344 zeroInit = false; |
| 345 break; | |
| 79 | 346 } |
| 347 else | |
| 348 { | |
| 349 if (!vd.type.isZeroInit(loc)) | |
| 350 { | |
| 351 zeroInit = false; | |
| 352 break; | |
| 353 } | |
| 354 } | |
| 0 | 355 } |
| 356 } | |
| 357 | |
| 358 /* Look for special member functions. | |
| 359 */ | |
| 360 version (DMDV2) { | |
| 361 ctor = search(Loc(0), Id.ctor, 0); | |
| 362 } | |
| 363 inv = cast(InvariantDeclaration)search(Loc(0), Id.classInvariant, 0); | |
| 364 aggNew = cast(NewDeclaration)search(Loc(0), Id.classNew, 0); | |
| 365 aggDelete = cast(DeleteDeclaration)search(Loc(0), Id.classDelete, 0); | |
| 366 | |
| 367 if (sc.func) | |
| 368 { | |
| 369 semantic2(sc); | |
| 370 semantic3(sc); | |
| 371 } | |
| 372 } | |
| 373 | |
| 72 | 374 override void toCBuffer(OutBuffer buf, HdrGenState* hgs) |
| 0 | 375 { |
| 376 assert(false); | |
| 377 } | |
| 378 | |
| 72 | 379 override string mangle() |
| 0 | 380 { |
| 381 //printf("StructDeclaration.mangle() '%s'\n", toChars()); | |
| 382 return Dsymbol.mangle(); | |
| 383 } | |
| 384 | |
| 72 | 385 override string kind() |
| 0 | 386 { |
| 387 assert(false); | |
| 388 } | |
| 389 | |
| 390 /******************************************* | |
| 391 * We need an opAssign for the struct if | |
| 392 * it has a destructor or a postblit. | |
| 393 * We need to generate one if a user-specified one does not exist. | |
| 394 */ | |
| 395 bool needOpAssign() | |
| 396 { | |
| 397 static if (false) { | |
| 398 printf("StructDeclaration.needOpAssign() %s\n", toChars()); | |
| 399 } | |
| 400 if (hasIdentityAssign) | |
| 401 goto Ldontneed; | |
| 402 | |
| 403 if (dtor || postblit) | |
| 404 goto Lneed; | |
| 405 | |
| 406 /* If any of the fields need an opAssign, then we | |
| 407 * need it too. | |
| 408 */ | |
|
85
8e69d041a99d
Previous commit didn't compile. Fixed.
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
84
diff
changeset
|
409 foreach (VarDeclaration v; fields) |
| 0 | 410 { |
| 411 assert(v && v.storage_class & STC.STCfield); | |
| 412 if (v.storage_class & STC.STCref) | |
| 413 continue; | |
| 414 Type tv = v.type.toBasetype(); | |
| 415 while (tv.ty == TY.Tsarray) | |
| 416 { TypeSArray ta = cast(TypeSArray)tv; | |
| 417 tv = tv.nextOf().toBasetype(); | |
| 418 } | |
| 419 if (tv.ty == TY.Tstruct) | |
| 420 { TypeStruct ts = cast(TypeStruct)tv; | |
| 421 StructDeclaration sd = ts.sym; | |
| 422 if (sd.needOpAssign()) | |
| 423 goto Lneed; | |
| 424 } | |
| 425 } | |
| 426 Ldontneed: | |
| 427 static if (false) { | |
| 428 printf("\tdontneed\n"); | |
| 429 } | |
| 430 return false; | |
| 431 | |
| 432 Lneed: | |
| 433 static if (false) { | |
| 434 printf("\tneed\n"); | |
| 435 } | |
| 436 return true; | |
| 437 } | |
| 438 | |
| 439 /****************************************** | |
| 440 * Build opAssign for struct. | |
| 441 * S* opAssign(S s) { ... } | |
| 442 */ | |
| 443 FuncDeclaration buildOpAssign(Scope sc) | |
| 444 { | |
| 445 if (!needOpAssign()) | |
| 446 return null; | |
| 447 | |
| 448 //printf("StructDeclaration.buildOpAssign() %s\n", toChars()); | |
| 449 | |
| 450 FuncDeclaration fop = null; | |
| 451 | |
| 129 | 452 Argument param = new Argument(STC.STCnodtor, type, Id.p, null); |
| 453 Arguments fparams = new Arguments; | |
|
126
1765f3ef917d
ClassDeclarations, Arguments -> Vector
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
454 fparams.push(param); |
| 0 | 455 Type ftype = new TypeFunction(fparams, handle, false, LINK.LINKd); |
| 456 version (STRUCTTHISREF) { | |
| 457 (cast(TypeFunction)ftype).isref = 1; | |
| 458 } | |
| 459 | |
| 460 fop = new FuncDeclaration(Loc(0), Loc(0), Id.assign, STC.STCundefined, ftype); | |
| 461 | |
| 462 Expression e = null; | |
| 463 if (postblit) | |
| 464 { /* Swap: | |
| 465 * tmp = *this; *this = s; tmp.dtor(); | |
| 466 */ | |
| 467 //printf("\tswap copy\n"); | |
| 468 Identifier idtmp = Lexer.uniqueId("__tmp"); | |
| 469 VarDeclaration tmp; | |
| 470 AssignExp ec = null; | |
| 471 if (dtor) | |
| 472 { | |
| 473 tmp = new VarDeclaration(Loc(0), type, idtmp, new VoidInitializer(Loc(0))); | |
| 474 tmp.noauto = true; | |
| 475 e = new DeclarationExp(Loc(0), tmp); | |
| 476 | |
| 477 Expression e2; | |
| 478 version (STRUCTTHISREF) { | |
| 479 e2 = new ThisExp(Loc(0)); | |
| 480 } else { | |
| 481 e2 = new PtrExp(Loc(0), new ThisExp(Loc(0))); | |
| 482 } | |
| 483 ec = new AssignExp(Loc(0), new VarExp(Loc(0), tmp), e2); | |
| 484 ec.op = TOK.TOKblit; | |
| 485 e = Expression.combine(e, ec); | |
| 486 } | |
| 487 Expression e2; | |
| 488 version (STRUCTTHISREF) { | |
| 489 e2 = new ThisExp(Loc(0)); | |
| 490 } else { | |
| 491 e2 = new PtrExp(Loc(0), new ThisExp(Loc(0))); | |
| 492 } | |
| 493 | |
| 494 ec = new AssignExp(Loc(0), e2, new IdentifierExp(Loc(0), Id.p)); | |
| 495 ec.op = TOK.TOKblit; | |
| 496 e = Expression.combine(e, ec); | |
| 497 if (dtor) | |
| 498 { | |
| 499 /* Instead of running the destructor on s, run it | |
| 500 * on tmp. This avoids needing to copy tmp back in to s. | |
| 501 */ | |
| 502 Expression ecc = new DotVarExp(Loc(0), new VarExp(Loc(0), tmp), dtor, 0); | |
| 503 ecc = new CallExp(Loc(0), ecc); | |
| 504 e = Expression.combine(e, ecc); | |
| 505 } | |
| 506 } | |
| 507 else | |
| 508 { /* Do memberwise copy | |
| 509 */ | |
| 510 //printf("\tmemberwise copy\n"); | |
|
85
8e69d041a99d
Previous commit didn't compile. Fixed.
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
84
diff
changeset
|
511 foreach (VarDeclaration v; fields) |
| 0 | 512 { |
| 513 assert(v && v.storage_class & STC.STCfield); | |
| 514 // this.v = s.v; | |
| 515 AssignExp ec = new AssignExp(Loc(0), new DotVarExp(Loc(0), new ThisExp(Loc(0)), v, 0), new DotVarExp(Loc(0), new IdentifierExp(Loc(0), Id.p), v, 0)); | |
| 516 ec.op = TOK.TOKblit; | |
| 517 e = Expression.combine(e, ec); | |
| 518 } | |
| 519 } | |
| 520 Statement s1 = new ExpStatement(Loc(0), e); | |
| 521 | |
| 522 /* Add: | |
| 523 * return this; | |
| 524 */ | |
| 525 e = new ThisExp(Loc(0)); | |
| 526 Statement s2 = new ReturnStatement(Loc(0), e); | |
| 527 | |
| 528 fop.fbody = new CompoundStatement(Loc(0), s1, s2); | |
| 529 | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
72
diff
changeset
|
530 members.push(fop); |
| 13 | 531 fop.addMember(sc, this, true); |
| 0 | 532 |
| 533 sc = sc.push(); | |
| 534 sc.stc = STC.STCundefined; | |
| 535 sc.linkage = LINK.LINKd; | |
| 536 | |
| 537 fop.semantic(sc); | |
| 538 | |
| 539 sc.pop(); | |
| 540 | |
| 541 //printf("-StructDeclaration.buildOpAssign() %s\n", toChars()); | |
| 542 | |
| 543 return fop; | |
| 544 } | |
| 545 | |
| 546 /***************************************** | |
| 547 * Create inclusive postblit for struct by aggregating | |
| 548 * all the postblits in postblits[] with the postblits for | |
| 549 * all the members. | |
| 550 * Note the close similarity with AggregateDeclaration.buildDtor(), | |
| 551 * and the ordering changes (runs forward instead of backwards). | |
| 552 */ | |
| 553 | |
| 554 version (DMDV2) { | |
| 555 FuncDeclaration buildPostBlit(Scope sc) | |
| 556 { | |
| 557 //printf("StructDeclaration.buildPostBlit() %s\n", toChars()); | |
| 558 Expression e = null; | |
| 559 | |
|
85
8e69d041a99d
Previous commit didn't compile. Fixed.
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
84
diff
changeset
|
560 foreach (VarDeclaration v; fields) |
| 0 | 561 { |
| 79 | 562 assert(v && v.storage_class & STC.STCfield); |
| 563 if (v.storage_class & STC.STCref) | |
| 564 continue; | |
| 565 Type tv = v.type.toBasetype(); | |
| 566 size_t dim = 1; | |
| 567 while (tv.ty == TY.Tsarray) | |
| 568 { TypeSArray ta = cast(TypeSArray)tv; | |
| 569 dim *= (cast(TypeSArray)tv).dim.toInteger(); | |
| 570 tv = tv.nextOf().toBasetype(); | |
| 0 | 571 } |
| 79 | 572 if (tv.ty == TY.Tstruct) |
| 573 { TypeStruct ts = cast(TypeStruct)tv; | |
| 574 StructDeclaration sd = ts.sym; | |
| 575 if (sd.postblit) | |
| 576 { Expression ex; | |
| 577 | |
| 578 // this.v | |
| 579 ex = new ThisExp(Loc(0)); | |
| 580 ex = new DotVarExp(Loc(0), ex, v, 0); | |
| 581 | |
| 582 if (dim == 1) | |
| 583 { // this.v.postblit() | |
| 584 ex = new DotVarExp(Loc(0), ex, sd.postblit, 0); | |
| 585 ex = new CallExp(Loc(0), ex); | |
| 586 } | |
| 587 else | |
| 588 { | |
| 589 // Typeinfo.postblit(cast(void*)&this.v); | |
| 590 Expression ea = new AddrExp(Loc(0), ex); | |
| 591 ea = new CastExp(Loc(0), ea, Type.tvoid.pointerTo()); | |
| 592 | |
| 593 Expression et = v.type.getTypeInfo(sc); | |
| 103 | 594 et = new DotIdExp(Loc(0), et, Id._postblit); |
| 79 | 595 |
| 596 ex = new CallExp(Loc(0), et, ea); | |
| 597 } | |
| 598 e = Expression.combine(e, ex); // combine in forward order | |
| 599 } | |
| 0 | 600 } |
| 601 } | |
| 602 | |
| 603 /* Build our own "postblit" which executes e | |
| 604 */ | |
| 605 if (e) | |
| 606 { //printf("Building __fieldPostBlit()\n"); | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
72
diff
changeset
|
607 auto dd = new PostBlitDeclaration(Loc(0), Loc(0), Lexer.idPool("__fieldPostBlit")); |
| 0 | 608 dd.fbody = new ExpStatement(Loc(0), e); |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
72
diff
changeset
|
609 postblits.shift(dd); |
|
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
72
diff
changeset
|
610 members.push(dd); |
| 0 | 611 dd.semantic(sc); |
| 612 } | |
| 613 | |
| 614 switch (postblits.dim) | |
| 615 { | |
| 616 case 0: | |
| 617 return null; | |
| 618 | |
| 619 case 1: | |
|
77
ad4792a1cfd6
more D-ification container accessing
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
74
diff
changeset
|
620 return cast(FuncDeclaration)postblits[0]; |
| 0 | 621 |
| 622 default: | |
| 623 e = null; | |
|
77
ad4792a1cfd6
more D-ification container accessing
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
74
diff
changeset
|
624 foreach(FuncDeclaration fd; postblits) |
|
ad4792a1cfd6
more D-ification container accessing
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
74
diff
changeset
|
625 { |
| 0 | 626 Expression ex = new ThisExp(Loc(0)); |
| 627 ex = new DotVarExp(Loc(0), ex, fd, 0); | |
| 628 ex = new CallExp(Loc(0), ex); | |
| 629 e = Expression.combine(e, ex); | |
| 630 } | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
72
diff
changeset
|
631 auto dd = new PostBlitDeclaration(Loc(0), Loc(0), Lexer.idPool("__aggrPostBlit")); |
| 0 | 632 dd.fbody = new ExpStatement(Loc(0), e); |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
72
diff
changeset
|
633 members.push(dd); |
| 0 | 634 dd.semantic(sc); |
| 635 return dd; | |
| 636 } | |
| 637 } | |
| 638 } | |
| 639 | |
| 640 /******************************************* | |
| 641 * Build copy constructor for struct. | |
| 642 * Copy constructors are compiler generated only, and are only | |
| 643 * callable from the compiler. They are not user accessible. | |
| 644 * A copy constructor is: | |
| 645 * void cpctpr(ref S s) | |
| 646 * { | |
| 647 * *this = s; | |
| 648 * this.postBlit(); | |
| 649 * } | |
| 650 * This is done so: | |
| 651 * - postBlit() never sees uninitialized data | |
| 652 * - memcpy can be much more efficient than memberwise copy | |
| 653 * - no fields are overlooked | |
| 654 */ | |
| 655 FuncDeclaration buildCpCtor(Scope sc) | |
| 656 { | |
| 657 //printf("StructDeclaration.buildCpCtor() %s\n", toChars()); | |
| 658 FuncDeclaration fcp = null; | |
| 659 | |
| 660 /* Copy constructor is only necessary if there is a postblit function, | |
| 661 * otherwise the code generator will just do a bit copy. | |
| 662 */ | |
| 663 if (postblit) | |
| 664 { | |
| 129 | 665 //printf("generating cpctor\n"); |
| 0 | 666 |
| 129 | 667 Argument param = new Argument(STC.STCref, type, Id.p, null); |
| 668 Arguments fparams = new Arguments; | |
| 669 fparams.push(param); | |
| 670 Type ftype = new TypeFunction(fparams, Type.tvoid, false, LINK.LINKd); | |
| 0 | 671 |
| 129 | 672 fcp = new FuncDeclaration(Loc(0), Loc(0), Id.cpctor, STC.STCundefined, ftype); |
| 0 | 673 |
| 129 | 674 // Build *this = p; |
| 675 Expression e = new ThisExp(Loc(0)); | |
| 0 | 676 version (STRUCTTHISREF) { |
| 677 } else { | |
| 129 | 678 e = new PtrExp(Loc(0), e); |
| 0 | 679 } |
| 129 | 680 AssignExp ea = new AssignExp(Loc(0), e, new IdentifierExp(Loc(0), Id.p)); |
| 681 ea.op = TOK.TOKblit; | |
| 682 Statement s = new ExpStatement(Loc(0), ea); | |
| 0 | 683 |
| 129 | 684 // Build postBlit(); |
| 685 e = new VarExp(Loc(0), postblit, 0); | |
| 686 e = new CallExp(Loc(0), e); | |
| 0 | 687 |
| 129 | 688 s = new CompoundStatement(Loc(0), s, new ExpStatement(Loc(0), e)); |
| 689 fcp.fbody = s; | |
| 0 | 690 |
| 129 | 691 members.push(fcp); |
| 0 | 692 |
| 129 | 693 sc = sc.push(); |
| 694 sc.stc = STC.STCundefined; | |
| 695 sc.linkage = LINK.LINKd; | |
| 0 | 696 |
| 129 | 697 fcp.semantic(sc); |
| 0 | 698 |
| 129 | 699 sc.pop(); |
| 0 | 700 } |
| 701 | |
| 702 return fcp; | |
| 703 } | |
| 704 | |
| 72 | 705 override void toDocBuffer(OutBuffer buf) |
| 0 | 706 { |
| 707 assert(false); | |
| 708 } | |
| 709 | |
| 72 | 710 override PROT getAccess(Dsymbol smember) // determine access to smember |
| 0 | 711 { |
| 712 assert(false); | |
| 713 } | |
| 714 | |
| 72 | 715 override void toObjFile(int multiobj) // compile to .obj file |
| 0 | 716 { |
| 717 //printf("StructDeclaration.toObjFile('%s')\n", toChars()); | |
| 718 | |
| 719 if (multiobj) | |
| 720 { | |
| 721 obj_append(this); | |
| 722 return; | |
| 723 } | |
| 724 | |
| 725 // Anonymous structs/unions only exist as part of others, | |
| 726 // do not output forward referenced structs's | |
| 727 if (!isAnonymous() && members) | |
| 728 { | |
| 729 if (global.params.symdebug) { | |
| 730 toDebug(); | |
| 731 } | |
| 732 | |
| 733 type.getTypeInfo(null); // generate TypeInfo | |
| 734 | |
| 735 if (true) | |
| 736 { | |
| 737 // Generate static initializer | |
| 738 toInitializer(); | |
| 739 | |
| 740 static if (false) { | |
| 741 sinit.Sclass = SC.SCcomdat; | |
| 742 } else { | |
| 743 if (inTemplateInstance()) | |
| 744 { | |
| 745 sinit.Sclass = SC.SCcomdat; | |
| 746 } | |
| 747 else | |
| 748 { | |
| 749 sinit.Sclass = SC.SCglobal; | |
| 750 } | |
| 751 } | |
| 752 sinit.Sfl = FL.FLdata; | |
| 753 | |
| 754 toDt(&sinit.Sdt); | |
| 755 | |
| 95 | 756 version (OMFOBJ) |
| 757 { | |
| 0 | 758 /* For OMF, common blocks aren't pulled in from the library. |
| 759 */ | |
| 760 /* ELF comdef's generate multiple | |
| 761 * definition errors for them from the gnu linker. | |
| 762 * Need to figure out how to generate proper comdef's for ELF. | |
| 763 */ | |
| 764 // See if we can convert a comdat to a comdef, | |
| 765 // which saves on exe file space. | |
| 95 | 766 if (0 && // causes multiple def problems with COMMON in one file and COMDAT in library |
| 767 sinit.Sclass == SCcomdat && | |
| 0 | 768 sinit.Sdt && |
| 769 sinit.Sdt.dt == DT.DT_azeros && | |
| 770 sinit.Sdt.DTnext == null && | |
| 771 !global.params.multiobj) | |
| 772 { | |
| 773 sinit.Sclass = SC.SCglobal; | |
| 774 sinit.Sdt.dt = DT.DT_common; | |
| 775 } | |
| 776 } | |
| 777 | |
| 778 version (ELFOBJ) { | |
| 779 sinit.Sseg = Segment.CDATA; | |
| 780 } | |
| 781 version (MACHOBJ) { | |
| 782 sinit.Sseg = Segment.DATA; | |
| 783 } | |
| 784 outdata(sinit); | |
| 785 } | |
| 786 | |
| 787 // Put out the members | |
|
77
ad4792a1cfd6
more D-ification container accessing
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
74
diff
changeset
|
788 foreach(Dsymbol member; members) |
| 0 | 789 member.toObjFile(0); |
| 790 } | |
| 791 } | |
| 792 | |
| 793 void toDt(dt_t** pdt) | |
| 794 { | |
| 795 uint offset; | |
| 796 dt_t* dt; | |
| 797 | |
| 798 //printf("StructDeclaration.toDt(), this='%s'\n", toChars()); | |
| 799 offset = 0; | |
| 800 | |
| 801 // Note equivalence of this loop to class's | |
| 79 | 802 for (uint i = 0; i < fields.dim; i++) |
| 0 | 803 { |
| 79 | 804 VarDeclaration v = cast(VarDeclaration)fields[i]; |
| 0 | 805 //printf("\tfield '%s' voffset %d, offset = %d\n", v.toChars(), v.offset, offset); |
| 806 dt = null; | |
| 807 int sz; | |
| 808 | |
| 809 if (v.storage_class & STC.STCref) | |
| 810 { | |
| 811 sz = PTRSIZE; | |
| 812 if (v.offset >= offset) | |
| 813 dtnzeros(&dt, sz); | |
| 814 } | |
| 815 else | |
| 816 { | |
| 817 sz = cast(uint)v.type.size(); | |
| 818 Initializer init = v.init; | |
| 819 if (init) | |
| 820 { | |
| 821 //printf("\t\thas initializer %s\n", init.toChars()); | |
| 822 ExpInitializer ei = init.isExpInitializer(); | |
| 823 Type tb = v.type.toBasetype(); | |
| 824 if (ei && tb.ty == TY.Tsarray) | |
| 825 (cast(TypeSArray)tb).toDtElem(&dt, ei.exp); | |
| 826 else | |
| 827 dt = init.toDt(); | |
| 828 } | |
| 829 else if (v.offset >= offset) | |
| 830 v.type.toDt(&dt); | |
| 831 } | |
| 832 if (dt) | |
| 833 { | |
| 834 if (v.offset < offset) | |
| 835 error("overlapping initialization for struct %s.%s", toChars(), v.toChars()); | |
| 836 else | |
| 837 { | |
| 838 if (offset < v.offset) | |
| 839 dtnzeros(pdt, v.offset - offset); | |
| 840 dtcat(pdt, dt); | |
| 841 offset = v.offset + sz; | |
| 842 } | |
| 843 } | |
| 844 } | |
| 845 | |
| 846 if (offset < structsize) | |
| 847 dtnzeros(pdt, structsize - offset); | |
| 848 | |
| 849 dt_optimize(*pdt); | |
| 850 } | |
| 851 | |
| 852 void toDebug() // to symbolic debug info | |
| 853 { | |
| 854 assert(false); | |
| 855 } | |
| 856 | |
| 72 | 857 override StructDeclaration isStructDeclaration() { return this; } |
| 858 } |