Mercurial > projects > ddmd
annotate dmd/NewExp.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 | cd48cb899aee |
| children | eb38fdcb3e62 |
| rev | line source |
|---|---|
| 72 | 1 module dmd.NewExp; |
| 2 | |
| 114 | 3 import dmd.common; |
| 72 | 4 import dmd.Expression; |
| 179 | 5 import dmd.GlobalExpressions; |
| 72 | 6 import dmd.NewDeclaration; |
| 0 | 7 import dmd.CtorDeclaration; |
| 72 | 8 import dmd.ClassDeclaration; |
| 179 | 9 import dmd.InterState; |
| 72 | 10 import dmd.Type; |
| 11 import dmd.OutBuffer; | |
| 174 | 12 import dmd.PREC; |
| 72 | 13 import dmd.Loc; |
| 14 import dmd.Scope; | |
| 15 import dmd.IRState; | |
| 16 import dmd.InlineDoState; | |
| 17 import dmd.HdrGenState; | |
| 18 import dmd.ArrayTypes; | |
| 0 | 19 import dmd.TOK; |
| 20 import dmd.TY; | |
| 21 import dmd.TypeFunction; | |
| 22 import dmd.TypeClass; | |
| 23 import dmd.TypeStruct; | |
| 24 import dmd.StructDeclaration; | |
| 25 import dmd.FuncDeclaration; | |
| 26 import dmd.TypeDArray; | |
| 27 import dmd.Dsymbol; | |
| 28 import dmd.ThisExp; | |
| 29 import dmd.DotIdExp; | |
| 30 import dmd.Id; | |
| 31 import dmd.WANT; | |
| 32 import dmd.Global; | |
| 33 import dmd.IntegerExp; | |
| 34 import dmd.TypePointer; | |
| 72 | 35 |
| 179 | 36 import dmd.interpret.Util; |
| 37 import dmd.expression.Util; | |
| 38 | |
| 0 | 39 import dmd.backend.elem; |
| 40 import dmd.backend.TYM; | |
| 41 import dmd.backend.SC; | |
| 42 import dmd.backend.TYPE; | |
| 43 import dmd.backend.TYM; | |
| 44 import dmd.backend.Symbol; | |
| 45 import dmd.backend.Classsym; | |
| 46 import dmd.backend.Util; | |
| 47 import dmd.backend.OPER; | |
| 48 import dmd.backend.RTLSYM; | |
| 49 import dmd.codegen.Util; | |
| 50 | |
| 72 | 51 import std.string : toStringz; |
| 52 | |
|
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53 import dmd.DDMDExtensions; |
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54 |
| 0 | 55 class NewExp : Expression |
| 56 { | |
|
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57 mixin insertMemberExtension!(typeof(this)); |
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58 |
| 72 | 59 /* thisexp.new(newargs) newtype(arguments) |
| 60 */ | |
| 61 Expression thisexp; // if !null, 'this' for class being allocated | |
| 62 Expressions newargs; // Array of Expression's to call new operator | |
| 63 Type newtype; | |
| 64 Expressions arguments; // Array of Expression's | |
| 65 | |
| 66 CtorDeclaration member; // constructor function | |
| 67 NewDeclaration allocator; // allocator function | |
| 0 | 68 int onstack; // allocate on stack |
| 69 | |
| 70 this(Loc loc, Expression thisexp, Expressions newargs, Type newtype, Expressions arguments) | |
| 71 { | |
| 178 | 72 register(); |
| 0 | 73 super(loc, TOK.TOKnew, NewExp.sizeof); |
| 74 this.thisexp = thisexp; | |
| 75 this.newargs = newargs; | |
| 76 this.newtype = newtype; | |
| 77 this.arguments = arguments; | |
| 78 } | |
| 79 | |
| 72 | 80 override Expression syntaxCopy() |
| 0 | 81 { |
| 72 | 82 return new NewExp(loc, |
| 83 thisexp ? thisexp.syntaxCopy() : null, | |
| 84 arraySyntaxCopy(newargs), | |
| 53 | 85 newtype.syntaxCopy(), arraySyntaxCopy(arguments)); |
| 0 | 86 } |
| 87 | |
| 72 | 88 override Expression semantic(Scope sc) |
| 0 | 89 { |
| 90 int i; | |
| 91 Type tb; | |
| 92 ClassDeclaration cdthis = null; | |
| 93 | |
| 94 version (LOGSEMANTIC) { | |
| 95 printf("NewExp.semantic() %s\n", toChars()); | |
| 96 if (thisexp) | |
| 97 printf("\tthisexp = %s\n", thisexp.toChars()); | |
| 98 printf("\tnewtype: %s\n", newtype.toChars()); | |
| 99 } | |
| 100 if (type) // if semantic() already run | |
| 101 return this; | |
| 102 | |
| 103 Lagain: | |
| 104 if (thisexp) | |
| 174 | 105 { |
| 0 | 106 thisexp = thisexp.semantic(sc); |
| 107 cdthis = thisexp.type.isClassHandle(); | |
| 108 if (cdthis) | |
| 109 { | |
| 110 sc = sc.push(cdthis); | |
| 111 type = newtype.semantic(loc, sc); | |
| 112 sc = sc.pop(); | |
| 113 } | |
| 114 else | |
| 115 { | |
| 116 error("'this' for nested class must be a class type, not %s", thisexp.type.toChars()); | |
| 117 type = newtype.semantic(loc, sc); | |
| 118 } | |
| 119 } | |
| 120 else | |
| 121 type = newtype.semantic(loc, sc); | |
| 122 newtype = type; // in case type gets cast to something else | |
| 123 tb = type.toBasetype(); | |
| 124 //printf("tb: %s, deco = %s\n", tb.toChars(), tb.deco); | |
| 125 | |
| 126 arrayExpressionSemantic(newargs, sc); | |
|
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127 preFunctionParameters(loc, sc, newargs); |
| 0 | 128 arrayExpressionSemantic(arguments, sc); |
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129 preFunctionParameters(loc, sc, arguments); |
| 0 | 130 |
| 131 if (thisexp && tb.ty != Tclass) | |
| 132 error("e.new is only for allocating nested classes, not %s", tb.toChars()); | |
| 133 | |
| 134 if (tb.ty == Tclass) | |
| 174 | 135 { |
| 0 | 136 TypeFunction tf; |
| 137 | |
| 138 TypeClass tc = cast(TypeClass)tb; | |
| 139 ClassDeclaration cd = tc.sym.isClassDeclaration(); | |
| 140 if (cd.isInterfaceDeclaration()) | |
| 141 error("cannot create instance of interface %s", cd.toChars()); | |
| 142 else if (cd.isAbstract()) | |
| 174 | 143 { |
| 0 | 144 error("cannot create instance of abstract class %s", cd.toChars()); |
| 145 for (int j = 0; j < cd.vtbl.dim; j++) | |
| 174 | 146 { |
| 0 | 147 FuncDeclaration fd = (cast(Dsymbol)cd.vtbl.data[j]).isFuncDeclaration(); |
| 148 if (fd && fd.isAbstract()) | |
| 149 error("function %s is abstract", fd.toChars()); | |
| 150 } | |
| 151 } | |
| 152 checkDeprecated(sc, cd); | |
| 153 if (cd.isNested()) | |
| 154 { /* We need a 'this' pointer for the nested class. | |
| 155 * Ensure we have the right one. | |
| 156 */ | |
| 157 Dsymbol s = cd.toParent2(); | |
| 158 ClassDeclaration cdn = s.isClassDeclaration(); | |
| 159 FuncDeclaration fdn = s.isFuncDeclaration(); | |
| 160 | |
| 161 //printf("cd isNested, cdn = %s\n", cdn ? cdn.toChars() : "null"); | |
| 162 if (cdn) | |
| 163 { | |
| 164 if (!cdthis) | |
| 165 { | |
| 166 // Supply an implicit 'this' and try again | |
| 167 thisexp = new ThisExp(loc); | |
| 168 for (Dsymbol sp = sc.parent; 1; sp = sp.parent) | |
| 174 | 169 { |
| 0 | 170 if (!sp) |
| 171 { | |
| 172 error("outer class %s 'this' needed to 'new' nested class %s", cdn.toChars(), cd.toChars()); | |
| 173 break; | |
| 174 } | |
| 175 ClassDeclaration cdp = sp.isClassDeclaration(); | |
| 176 if (!cdp) | |
| 177 continue; | |
| 178 if (cdp == cdn || cdn.isBaseOf(cdp, null)) | |
| 179 break; | |
| 180 // Add a '.outer' and try again | |
| 181 thisexp = new DotIdExp(loc, thisexp, Id.outer); | |
| 182 } | |
| 183 if (!global.errors) | |
| 184 goto Lagain; | |
| 185 } | |
| 186 if (cdthis) | |
| 187 { | |
| 188 //printf("cdthis = %s\n", cdthis.toChars()); | |
| 189 if (cdthis != cdn && !cdn.isBaseOf(cdthis, null)) | |
| 190 error("'this' for nested class must be of type %s, not %s", cdn.toChars(), thisexp.type.toChars()); | |
| 191 } | |
| 192 else | |
| 193 { | |
| 194 static if (false) { | |
| 195 for (Dsymbol *sf = sc.func; 1; sf= sf.toParent2().isFuncDeclaration()) | |
| 196 { | |
| 197 if (!sf) | |
| 198 { | |
| 199 error("outer class %s 'this' needed to 'new' nested class %s", cdn.toChars(), cd.toChars()); | |
| 200 break; | |
| 201 } | |
| 202 printf("sf = %s\n", sf.toChars()); | |
| 203 AggregateDeclaration *ad = sf.isThis(); | |
| 204 if (ad && (ad == cdn || cdn.isBaseOf(ad.isClassDeclaration(), null))) | |
| 205 break; | |
| 206 } | |
| 207 } | |
| 208 } | |
| 209 } | |
| 210 ///static if (true) { | |
| 211 else if (thisexp) | |
| 212 error("e.new is only for allocating nested classes"); | |
| 213 else if (fdn) | |
| 214 { | |
| 215 // make sure the parent context fdn of cd is reachable from sc | |
| 216 for (Dsymbol sp = sc.parent; 1; sp = sp.parent) | |
| 217 { | |
| 218 if (fdn is sp) | |
| 219 break; | |
| 220 FuncDeclaration fsp = sp ? sp.isFuncDeclaration() : null; | |
| 221 if (!sp || (fsp && fsp.isStatic())) | |
| 222 { | |
| 223 error("outer function context of %s is needed to 'new' nested class %s", fdn.toPrettyChars(), cd.toPrettyChars()); | |
| 224 break; | |
| 225 } | |
| 226 } | |
| 227 } | |
| 228 ///} else { | |
| 229 /// else if (fdn) | |
| 174 | 230 /// { |
| 0 | 231 /// /* The nested class cd is nested inside a function, |
| 232 /// * we'll let getEthis() look for errors. | |
| 233 /// */ | |
| 234 /// //printf("nested class %s is nested inside function %s, we're in %s\n", cd.toChars(), fdn.toChars(), sc.func.toChars()); | |
| 235 /// if (thisexp) | |
| 236 /// // Because thisexp cannot be a function frame pointer | |
| 237 /// error("e.new is only for allocating nested classes"); | |
| 238 /// } | |
| 239 ///} | |
| 240 else | |
| 241 assert(0); | |
| 242 } | |
| 243 else if (thisexp) | |
| 244 error("e.new is only for allocating nested classes"); | |
| 245 | |
| 246 FuncDeclaration f = null; | |
| 247 if (cd.ctor) | |
| 248 f = resolveFuncCall(sc, loc, cd.ctor, null, null, arguments, 0); | |
| 249 if (f) | |
| 250 { | |
| 251 checkDeprecated(sc, f); | |
| 252 member = f.isCtorDeclaration(); | |
| 253 assert(member); | |
| 254 | |
| 255 cd.accessCheck(loc, sc, member); | |
| 256 | |
| 257 tf = cast(TypeFunction)f.type; | |
| 258 | |
| 259 if (!arguments) | |
| 260 arguments = new Expressions(); | |
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261 functionParameters(loc, sc, tf, arguments); |
| 0 | 262 } |
| 263 else | |
| 264 { | |
| 265 if (arguments && arguments.dim) | |
| 266 error("no constructor for %s", cd.toChars()); | |
| 267 } | |
| 268 | |
| 269 if (cd.aggNew) | |
| 270 { | |
| 271 // Prepend the size argument to newargs[] | |
| 272 Expression e = new IntegerExp(loc, cd.size(loc), Type.tsize_t); | |
| 273 if (!newargs) | |
| 274 newargs = new Expressions(); | |
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275 newargs.shift(e); |
| 0 | 276 |
| 277 f = cd.aggNew.overloadResolve(loc, null, newargs); | |
| 278 allocator = f.isNewDeclaration(); | |
| 279 assert(allocator); | |
| 280 | |
| 281 tf = cast(TypeFunction)f.type; | |
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282 functionParameters(loc, sc, tf, newargs); |
| 0 | 283 } |
| 284 else | |
| 285 { | |
| 286 if (newargs && newargs.dim) | |
| 287 error("no allocator for %s", cd.toChars()); | |
| 288 } | |
| 289 } | |
| 290 else if (tb.ty == Tstruct) | |
| 291 { | |
| 292 TypeStruct ts = cast(TypeStruct)tb; | |
| 293 StructDeclaration sd = ts.sym; | |
| 294 TypeFunction tf; | |
| 295 | |
| 296 FuncDeclaration f = null; | |
| 297 if (sd.ctor) | |
| 298 f = resolveFuncCall(sc, loc, sd.ctor, null, null, arguments, 0); | |
| 299 if (f) | |
| 300 { | |
| 301 checkDeprecated(sc, f); | |
| 302 member = f.isCtorDeclaration(); | |
| 303 assert(member); | |
| 304 | |
| 305 sd.accessCheck(loc, sc, member); | |
| 306 | |
| 307 tf = cast(TypeFunction)f.type; | |
| 308 // type = tf.next; | |
| 309 | |
| 310 if (!arguments) | |
| 311 arguments = new Expressions(); | |
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312 functionParameters(loc, sc, tf, arguments); |
| 0 | 313 } |
| 314 else | |
| 315 { | |
| 316 if (arguments && arguments.dim) | |
| 317 error("no constructor for %s", sd.toChars()); | |
| 318 } | |
| 319 | |
| 320 if (sd.aggNew) | |
| 321 { | |
| 322 // Prepend the uint size argument to newargs[] | |
| 323 Expression e = new IntegerExp(loc, sd.size(loc), Type.tuns32); | |
| 324 if (!newargs) | |
| 325 newargs = new Expressions(); | |
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326 newargs.shift(e); |
| 0 | 327 |
| 328 f = sd.aggNew.overloadResolve(loc, null, newargs); | |
| 329 allocator = f.isNewDeclaration(); | |
| 330 assert(allocator); | |
| 331 | |
| 332 tf = cast(TypeFunction)f.type; | |
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333 functionParameters(loc, sc, tf, newargs); |
| 0 | 334 static if (false) { |
| 335 e = new VarExp(loc, f); | |
| 336 e = new CallExp(loc, e, newargs); | |
| 337 e = e.semantic(sc); | |
| 338 e.type = type.pointerTo(); | |
| 339 return e; | |
| 340 } | |
| 341 } | |
| 342 else | |
| 343 { | |
| 344 if (newargs && newargs.dim) | |
| 345 error("no allocator for %s", sd.toChars()); | |
| 346 } | |
| 347 | |
| 348 type = type.pointerTo(); | |
| 349 } | |
| 350 else if (tb.ty == Tarray && (arguments && arguments.dim)) | |
| 351 { | |
| 352 for (size_t j = 0; j < arguments.dim; j++) | |
| 353 { | |
| 354 if (tb.ty != Tarray) | |
| 174 | 355 { |
| 0 | 356 error("too many arguments for array"); |
| 357 arguments.dim = i; | |
| 358 break; | |
| 359 } | |
| 360 | |
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361 auto arg = arguments[j]; |
| 0 | 362 arg = resolveProperties(sc, arg); |
| 363 arg = arg.implicitCastTo(sc, Type.tsize_t); | |
| 364 arg = arg.optimize(WANTvalue); | |
| 365 if (arg.op == TOKint64 && cast(long)arg.toInteger() < 0) | |
| 366 error("negative array index %s", arg.toChars()); | |
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367 arguments[j] = arg; |
| 0 | 368 tb = (cast(TypeDArray)tb).next.toBasetype(); |
| 369 } | |
| 370 } | |
| 371 else if (tb.isscalar()) | |
| 372 { | |
| 373 if (arguments && arguments.dim) | |
| 374 error("no constructor for %s", type.toChars()); | |
| 375 | |
| 376 type = type.pointerTo(); | |
| 377 } | |
| 378 else | |
| 379 { | |
| 380 error("new can only create structs, dynamic arrays or class objects, not %s's", type.toChars()); | |
| 381 type = type.pointerTo(); | |
| 382 } | |
| 383 | |
| 384 //printf("NewExp: '%s'\n", toChars()); | |
| 385 //printf("NewExp:type '%s'\n", type.toChars()); | |
| 386 | |
| 387 return this; | |
| 388 } | |
| 179 | 389 |
| 390 Expression interpret(InterState istate) | |
| 391 { | |
| 392 version (LOG) { | |
| 393 writef("NewExp::interpret() %s\n", toChars()); | |
| 394 } | |
| 395 if (newtype.ty == Tarray && arguments && arguments.dim == 1) | |
| 396 { | |
| 397 Expression lenExpr = arguments[0].interpret(istate); | |
| 398 if (lenExpr is EXP_CANT_INTERPRET) | |
| 399 return EXP_CANT_INTERPRET; | |
| 400 return createBlockDuplicatedArrayLiteral(newtype, newtype.defaultInitLiteral(Loc(0)), cast(uint)lenExpr.toInteger()); | |
| 401 } | |
| 402 error("Cannot interpret %s at compile time", toChars()); | |
| 403 return EXP_CANT_INTERPRET; | |
| 404 | |
| 405 } | |
| 0 | 406 |
| 72 | 407 override Expression optimize(int result) |
| 0 | 408 { |
| 409 if (thisexp) | |
| 410 thisexp = thisexp.optimize(WANTvalue); | |
| 411 | |
| 412 // Optimize parameters | |
| 413 if (newargs) | |
| 414 { | |
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415 foreach (ref Expression e; newargs) |
| 174 | 416 { |
| 0 | 417 e = e.optimize(WANTvalue); |
| 418 } | |
| 419 } | |
| 420 | |
| 421 if (arguments) | |
| 422 { | |
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423 foreach (ref Expression e; arguments) |
| 174 | 424 { |
| 0 | 425 e = e.optimize(WANTvalue); |
| 426 } | |
| 427 } | |
| 428 return this; | |
| 429 } | |
| 430 | |
| 72 | 431 override elem* toElem(IRState* irs) |
| 0 | 432 { |
| 433 elem* e; | |
| 434 Type t; | |
| 435 Type ectype; | |
| 436 | |
| 437 //printf("NewExp.toElem() %s\n", toChars()); | |
| 438 t = type.toBasetype(); | |
| 439 //printf("\ttype = %s\n", t.toChars()); | |
| 440 //if (member) | |
| 441 //printf("\tmember = %s\n", member.toChars()); | |
| 442 if (t.ty == Tclass) | |
| 443 { | |
| 444 Symbol* csym; | |
| 445 | |
| 446 t = newtype.toBasetype(); | |
| 447 assert(t.ty == Tclass); | |
| 448 TypeClass tclass = cast(TypeClass)t; | |
| 449 ClassDeclaration cd = tclass.sym; | |
| 450 | |
| 451 /* Things to do: | |
| 452 * 1) ex: call allocator | |
| 453 * 2) ey: set vthis for nested classes | |
| 454 * 3) ez: call constructor | |
| 455 */ | |
| 456 | |
| 457 elem *ex = null; | |
| 458 elem *ey = null; | |
| 459 elem *ez = null; | |
| 460 | |
| 461 if (allocator || onstack) | |
| 174 | 462 { |
| 0 | 463 elem *ei; |
| 464 Symbol *si; | |
| 465 | |
| 466 if (onstack) | |
| 467 { | |
| 468 /* Create an instance of the class on the stack, | |
| 469 * and call it stmp. | |
| 470 * Set ex to be the &stmp. | |
| 471 */ | |
| 472 Symbol* s = symbol_calloc(toStringz(tclass.sym.toChars())); | |
| 473 s.Sclass = SCstruct; | |
| 474 s.Sstruct = struct_calloc(); | |
| 475 s.Sstruct.Sflags |= 0; | |
| 476 s.Sstruct.Salignsize = tclass.sym.alignsize; | |
| 477 s.Sstruct.Sstructalign = cast(ubyte)tclass.sym.structalign; | |
| 478 s.Sstruct.Sstructsize = tclass.sym.structsize; | |
| 479 | |
| 480 .type* tc = type_alloc(TYstruct); | |
| 481 tc.Ttag = cast(Classsym*)s; // structure tag name | |
| 482 tc.Tcount++; | |
| 483 s.Stype = tc; | |
| 484 | |
| 485 Symbol *stmp = symbol_genauto(tc); | |
| 486 ex = el_ptr(stmp); | |
| 487 } | |
| 488 else | |
| 489 { | |
| 490 ex = el_var(allocator.toSymbol()); | |
| 491 ex = callfunc(loc, irs, 1, type, ex, allocator.type, | |
| 492 allocator, allocator.type, null, newargs); | |
| 493 } | |
| 494 | |
| 495 si = tclass.sym.toInitializer(); | |
| 496 ei = el_var(si); | |
| 497 | |
| 498 if (cd.isNested()) | |
| 499 { | |
| 500 ey = el_same(&ex); | |
| 501 ez = el_copytree(ey); | |
| 502 } | |
| 503 else if (member) | |
| 504 ez = el_same(&ex); | |
| 505 | |
| 506 ex = el_una(OPind, TYstruct, ex); | |
| 507 ex = el_bin(OPstreq, TYnptr, ex, ei); | |
| 508 ex.Enumbytes = cd.size(loc); | |
| 509 ex = el_una(OPaddr, TYnptr, ex); | |
| 510 ectype = tclass; | |
| 511 } | |
| 512 else | |
| 513 { | |
| 514 csym = cd.toSymbol(); | |
| 515 ex = el_bin(OPcall,TYnptr,el_var(rtlsym[RTLSYM_NEWCLASS]),el_ptr(csym)); | |
| 516 ectype = null; | |
| 517 | |
| 518 if (cd.isNested()) | |
| 519 { | |
| 520 ey = el_same(&ex); | |
| 521 ez = el_copytree(ey); | |
| 522 } | |
| 523 else if (member) | |
| 524 ez = el_same(&ex); | |
| 525 //elem_print(ex); | |
| 526 //elem_print(ey); | |
| 527 //elem_print(ez); | |
| 528 } | |
| 529 | |
| 530 if (thisexp) | |
| 174 | 531 { |
| 0 | 532 ClassDeclaration cdthis = thisexp.type.isClassHandle(); |
| 533 assert(cdthis); | |
| 534 //printf("cd = %s\n", cd.toChars()); | |
| 535 //printf("cdthis = %s\n", cdthis.toChars()); | |
| 536 assert(cd.isNested()); | |
| 537 int offset = 0; | |
| 538 Dsymbol cdp = cd.toParent2(); // class we're nested in | |
| 539 elem* ethis; | |
| 540 | |
| 541 //printf("member = %p\n", member); | |
| 542 //printf("cdp = %s\n", cdp.toChars()); | |
| 543 //printf("cdthis = %s\n", cdthis.toChars()); | |
| 544 if (cdp != cdthis) | |
| 174 | 545 { |
| 0 | 546 int i = cdp.isClassDeclaration().isBaseOf(cdthis, &offset); |
| 547 assert(i); | |
| 548 } | |
| 549 ethis = thisexp.toElem(irs); | |
| 550 if (offset) | |
| 551 ethis = el_bin(OPadd, TYnptr, ethis, el_long(TYint, offset)); | |
| 552 | |
| 553 if (!cd.vthis) | |
| 554 { | |
| 555 error("forward reference to %s", cd.toChars()); | |
| 556 } | |
| 557 else | |
| 558 { | |
| 559 ey = el_bin(OPadd, TYnptr, ey, el_long(TYint, cd.vthis.offset)); | |
| 560 ey = el_una(OPind, TYnptr, ey); | |
| 561 ey = el_bin(OPeq, TYnptr, ey, ethis); | |
| 562 } | |
| 563 //printf("ex: "); elem_print(ex); | |
| 564 //printf("ey: "); elem_print(ey); | |
| 565 //printf("ez: "); elem_print(ez); | |
| 566 } | |
| 567 else if (cd.isNested()) | |
| 174 | 568 { |
| 0 | 569 /* Initialize cd.vthis: |
| 570 * *(ey + cd.vthis.offset) = this; | |
| 571 */ | |
| 572 ey = setEthis(loc, irs, ey, cd); | |
| 573 } | |
| 574 | |
| 575 if (member) | |
| 576 // Call constructor | |
| 577 ez = callfunc(loc, irs, 1, type, ez, ectype, member, member.type, null, arguments); | |
| 578 | |
| 579 e = el_combine(ex, ey); | |
| 580 e = el_combine(e, ez); | |
| 581 } | |
| 582 else if (t.ty == Tpointer && t.nextOf().toBasetype().ty == Tstruct) | |
| 583 { | |
| 584 Symbol* csym; | |
| 585 | |
| 586 t = newtype.toBasetype(); | |
| 587 assert(t.ty == Tstruct); | |
| 588 TypeStruct tclass = cast(TypeStruct)t; | |
| 589 StructDeclaration cd = tclass.sym; | |
| 590 | |
| 591 /* Things to do: | |
| 592 * 1) ex: call allocator | |
| 593 * 2) ey: set vthis for nested classes | |
| 594 * 3) ez: call constructor | |
| 595 */ | |
| 596 | |
| 597 elem* ex = null; | |
| 598 elem* ey = null; | |
| 599 elem* ez = null; | |
| 600 | |
| 601 if (allocator) | |
| 174 | 602 { |
| 0 | 603 elem *ei; |
| 604 Symbol *si; | |
| 605 | |
| 606 ex = el_var(allocator.toSymbol()); | |
| 607 ex = callfunc(loc, irs, 1, type, ex, allocator.type, | |
| 608 allocator, allocator.type, null, newargs); | |
| 609 | |
| 610 si = tclass.sym.toInitializer(); | |
| 611 ei = el_var(si); | |
| 612 | |
| 613 if (cd.isNested()) | |
| 614 { | |
| 615 ey = el_same(&ex); | |
| 616 ez = el_copytree(ey); | |
| 617 } | |
| 618 else if (member) | |
| 619 ez = el_same(&ex); | |
| 620 | |
| 621 if (!member) | |
| 174 | 622 { |
| 0 | 623 /* Statically intialize with default initializer |
| 624 */ | |
| 625 ex = el_una(OPind, TYstruct, ex); | |
| 626 ex = el_bin(OPstreq, TYnptr, ex, ei); | |
| 627 ex.Enumbytes = cd.size(loc); | |
| 628 ex = el_una(OPaddr, TYnptr, ex); | |
| 629 } | |
| 630 ectype = tclass; | |
| 631 } | |
| 632 else | |
| 633 { | |
| 634 ulong elemsize = cd.size(loc); | |
| 635 | |
| 636 // call _d_newarrayT(ti, 1) | |
| 637 e = el_long(TYsize_t, 1); | |
| 638 e = el_param(e, type.getTypeInfo(null).toElem(irs)); | |
| 639 | |
| 640 int rtl = t.isZeroInit(Loc(0)) ? RTLSYM_NEWARRAYT : RTLSYM_NEWARRAYIT; | |
| 641 e = el_bin(OPcall,TYdarray,el_var(rtlsym[rtl]),e); | |
| 642 | |
| 643 // The new functions return an array, so convert to a pointer | |
| 644 // ex . (unsigned)(e >> 32) | |
| 645 e = el_bin(OPshr, TYdarray, e, el_long(TYint, 32)); | |
| 646 ex = el_una(OP64_32, TYnptr, e); | |
| 647 | |
| 648 ectype = null; | |
| 649 | |
| 650 if (cd.isNested()) | |
| 651 { | |
| 652 ey = el_same(&ex); | |
| 653 ez = el_copytree(ey); | |
| 654 } | |
| 655 else if (member) | |
| 656 ez = el_same(&ex); | |
| 657 //elem_print(ex); | |
| 658 //elem_print(ey); | |
| 659 //elem_print(ez); | |
| 660 } | |
| 661 | |
| 662 if (cd.isNested()) | |
| 174 | 663 { |
| 0 | 664 /* Initialize cd.vthis: |
| 665 * *(ey + cd.vthis.offset) = this; | |
| 666 */ | |
| 667 ey = setEthis(loc, irs, ey, cd); | |
| 668 } | |
| 669 | |
| 670 if (member) | |
| 174 | 671 { |
| 0 | 672 // Call constructor |
| 673 ez = callfunc(loc, irs, 1, type, ez, ectype, member, member.type, null, arguments); | |
| 674 version (STRUCTTHISREF) { | |
| 675 /* Structs return a ref, which gets automatically dereferenced. | |
| 676 * But we want a pointer to the instance. | |
| 677 */ | |
| 678 ez = el_una(OPaddr, TYnptr, ez); | |
| 679 } | |
| 680 } | |
| 681 | |
| 682 e = el_combine(ex, ey); | |
| 683 e = el_combine(e, ez); | |
| 684 } | |
| 685 else if (t.ty == Tarray) | |
| 686 { | |
| 687 TypeDArray tda = cast(TypeDArray)t; | |
| 688 | |
| 689 assert(arguments && arguments.dim >= 1); | |
| 690 if (arguments.dim == 1) | |
| 174 | 691 { |
| 0 | 692 // Single dimension array allocations |
|
90
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Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
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|
693 auto arg = arguments[0]; // gives array length |
| 0 | 694 e = arg.toElem(irs); |
| 695 ulong elemsize = tda.next.size(); | |
| 696 | |
| 697 // call _d_newT(ti, arg) | |
| 698 e = el_param(e, type.getTypeInfo(null).toElem(irs)); | |
| 699 int rtl = tda.next.isZeroInit(Loc(0)) ? RTLSYM_NEWARRAYT : RTLSYM_NEWARRAYIT; | |
| 700 e = el_bin(OPcall,TYdarray,el_var(rtlsym[rtl]),e); | |
| 701 } | |
| 702 else | |
| 174 | 703 { |
| 0 | 704 // Multidimensional array allocations |
| 705 e = el_long(TYint, arguments.dim); | |
|
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Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
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changeset
|
706 foreach (Expression arg; arguments) |
| 0 | 707 { |
| 708 e = el_param(arg.toElem(irs), e); | |
| 709 assert(t.ty == Tarray); | |
| 710 t = t.nextOf(); | |
| 711 assert(t); | |
| 712 } | |
| 713 | |
| 714 e = el_param(e, type.getTypeInfo(null).toElem(irs)); | |
| 715 | |
| 716 int rtl = t.isZeroInit(Loc(0)) ? RTLSYM_NEWARRAYMT : RTLSYM_NEWARRAYMIT; | |
| 717 e = el_bin(OPcall,TYdarray,el_var(rtlsym[rtl]),e); | |
| 718 } | |
| 719 } | |
| 720 else if (t.ty == Tpointer) | |
| 721 { | |
| 722 TypePointer tp = cast(TypePointer)t; | |
| 723 ulong elemsize = tp.next.size(); | |
| 724 Expression di = tp.next.defaultInit(Loc(0)); | |
| 725 ulong disize = di.type.size(); | |
| 726 | |
| 727 // call _d_newarrayT(ti, 1) | |
| 728 e = el_long(TYsize_t, 1); | |
| 729 e = el_param(e, type.getTypeInfo(null).toElem(irs)); | |
| 730 | |
| 731 int rtl = tp.next.isZeroInit(Loc(0)) ? RTLSYM_NEWARRAYT : RTLSYM_NEWARRAYIT; | |
| 732 e = el_bin(OPcall,TYdarray,el_var(rtlsym[rtl]),e); | |
| 733 | |
| 734 // The new functions return an array, so convert to a pointer | |
| 735 // e . (unsigned)(e >> 32) | |
| 736 e = el_bin(OPshr, TYdarray, e, el_long(TYint, 32)); | |
| 737 e = el_una(OP64_32, t.totym(), e); | |
| 738 } | |
| 739 else | |
| 740 { | |
| 741 assert(0); | |
| 742 } | |
| 743 | |
| 744 el_setLoc(e,loc); | |
| 745 return e; | |
| 746 } | |
| 747 | |
| 72 | 748 override bool checkSideEffect(int flag) |
| 0 | 749 { |
| 123 | 750 return true; |
| 0 | 751 } |
| 752 | |
| 72 | 753 override void toCBuffer(OutBuffer buf, HdrGenState* hgs) |
| 0 | 754 { |
| 174 | 755 int i; |
| 756 | |
| 757 if (thisexp) | |
| 758 { | |
| 759 expToCBuffer(buf, hgs, thisexp, PREC.PREC_primary); | |
| 760 buf.writeByte('.'); | |
| 761 } | |
| 762 buf.writestring("new "); | |
| 763 if (newargs && newargs.dim) | |
| 764 { | |
| 765 buf.writeByte('('); | |
| 766 argsToCBuffer(buf, newargs, hgs); | |
| 767 buf.writeByte(')'); | |
| 768 } | |
| 769 newtype.toCBuffer(buf, null, hgs); | |
| 770 if (arguments && arguments.dim) | |
| 771 { | |
| 772 buf.writeByte('('); | |
| 773 argsToCBuffer(buf, arguments, hgs); | |
| 774 buf.writeByte(')'); | |
| 775 } | |
| 0 | 776 } |
| 777 | |
| 72 | 778 override void scanForNestedRef(Scope sc) |
| 0 | 779 { |
| 72 | 780 //printf("NewExp.scanForNestedRef(Scope *sc): %s\n", toChars()); |
| 781 | |
| 782 if (thisexp) | |
| 783 thisexp.scanForNestedRef(sc); | |
| 784 arrayExpressionScanForNestedRef(sc, newargs); | |
| 64 | 785 arrayExpressionScanForNestedRef(sc, arguments); |
| 0 | 786 } |
| 787 | |
| 788 version (DMDV2) { | |
| 72 | 789 override bool canThrow() |
| 0 | 790 { |
| 791 return 1; | |
| 72 | 792 } |
| 0 | 793 } |
| 174 | 794 |
| 0 | 795 //int inlineCost(InlineCostState *ics); |
| 796 | |
| 72 | 797 override Expression doInline(InlineDoState ids) |
| 0 | 798 { |
| 799 //printf("NewExp.doInline(): %s\n", toChars()); | |
| 800 NewExp ne = cast(NewExp)copy(); | |
| 801 | |
| 802 if (thisexp) | |
| 803 ne.thisexp = thisexp.doInline(ids); | |
| 804 ne.newargs = arrayExpressiondoInline(ne.newargs, ids); | |
| 805 ne.arguments = arrayExpressiondoInline(ne.arguments, ids); | |
| 806 return ne; | |
| 72 | 807 } |
| 174 | 808 |
| 0 | 809 //Expression inlineScan(InlineScanState *iss); |
| 810 } | |
| 811 |