Mercurial > projects > ddmd
annotate dmd/ArrayLiteralExp.d @ 135:af1bebfd96a4 dmd2037
dmd 2.038
| author | Eldar Insafutdinov <e.insafutdinov@gmail.com> |
|---|---|
| date | Mon, 13 Sep 2010 22:19:42 +0100 |
| parents | 60bb0fe4563e |
| children | 438eaa11eed4 |
| rev | line source |
|---|---|
| 72 | 1 module dmd.ArrayLiteralExp; |
| 2 | |
| 114 | 3 import dmd.common; |
| 72 | 4 import dmd.Expression; |
| 5 import dmd.backend.elem; | |
| 6 import dmd.InterState; | |
| 7 import dmd.MATCH; | |
| 8 import dmd.Type; | |
| 9 import dmd.OutBuffer; | |
| 10 import dmd.Loc; | |
| 0 | 11 import dmd.WANT; |
| 72 | 12 import dmd.Scope; |
| 13 import dmd.InlineCostState; | |
| 14 import dmd.IRState; | |
| 15 import dmd.InlineDoState; | |
| 16 import dmd.HdrGenState; | |
| 17 import dmd.backend.dt_t; | |
| 18 import dmd.InlineScanState; | |
| 123 | 19 import dmd.GlobalExpressions; |
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20 import dmd.Array; |
| 72 | 21 import dmd.ArrayTypes; |
| 0 | 22 import dmd.TOK; |
| 23 import dmd.IntegerExp; | |
| 24 import dmd.TypeSArray; | |
| 25 import dmd.TY; | |
| 26 import dmd.StringExp; | |
| 27 | |
| 28 import dmd.expression.Util; | |
| 29 import dmd.backend.Util; | |
| 30 import dmd.backend.RTLSYM; | |
| 72 | 31 import dmd.backend.OPER; |
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32 import dmd.backend.Symbol; |
| 0 | 33 import dmd.backend.TYM; |
| 72 | 34 import dmd.backend.mTY; |
| 35 import dmd.codegen.Util; | |
| 36 | |
| 0 | 37 class ArrayLiteralExp : Expression |
| 38 { | |
| 39 Expressions elements; | |
| 40 | |
| 41 this(Loc loc, Expressions elements) | |
| 72 | 42 { |
| 0 | 43 super(loc, TOK.TOKarrayliteral, ArrayLiteralExp.sizeof); |
| 44 this.elements = elements; | |
| 45 } | |
| 46 | |
| 47 this(Loc loc, Expression e) | |
| 48 { | |
| 49 super(loc, TOK.TOKarrayliteral, ArrayLiteralExp.sizeof); | |
| 50 elements = new Expressions(); | |
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51 elements.push(e); |
| 0 | 52 } |
| 53 | |
| 72 | 54 override Expression syntaxCopy() |
| 0 | 55 { |
| 56 return new ArrayLiteralExp(loc, arraySyntaxCopy(elements)); | |
| 57 } | |
| 58 | |
| 72 | 59 override Expression semantic(Scope sc) |
| 0 | 60 { |
| 61 version (LOGSEMANTIC) { | |
| 62 printf("ArrayLiteralExp.semantic('%s')\n", toChars()); | |
| 63 } | |
| 64 if (type) | |
| 65 return this; | |
| 66 | |
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67 arrayExpressionSemantic(elements, sc); // run semantic() on each element |
| 0 | 68 |
| 69 expandTuples(elements); | |
| 70 | |
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71 Type t0; |
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72 elements = arrayExpressionToCommonType(sc, elements, &t0); |
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dmdfe 2.037 first main iteration
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73 |
| 0 | 74 type = new TypeSArray(t0, new IntegerExp(elements.dim)); |
| 75 type = type.semantic(loc, sc); | |
| 76 return this; | |
| 77 } | |
| 78 | |
| 72 | 79 override bool isBool(bool result) |
| 0 | 80 { |
| 81 size_t dim = elements ? elements.dim : 0; | |
| 82 return result ? (dim != 0) : (dim == 0); | |
| 83 } | |
| 84 | |
| 72 | 85 override elem* toElem(IRState* irs) |
| 0 | 86 { |
| 87 elem* e; | |
| 88 size_t dim; | |
| 89 | |
| 90 //printf("ArrayLiteralExp.toElem() %s\n", toChars()); | |
| 91 if (elements) | |
| 92 { | |
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93 scope args = new Array(); // ddmd was Expressions |
| 0 | 94 dim = elements.dim; |
| 95 args.setDim(dim + 1); // +1 for number of args parameter | |
| 96 e = el_long(TYint, dim); | |
| 97 args.data[dim] = cast(void*)e; | |
| 98 for (size_t i = 0; i < dim; i++) | |
| 99 { | |
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parents:
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100 auto el = elements[i]; |
| 0 | 101 elem* ep = el.toElem(irs); |
| 102 | |
| 103 if (tybasic(ep.Ety) == TYstruct || tybasic(ep.Ety) == TYarray) | |
| 104 { | |
| 105 ep = el_una(OPstrpar, TYstruct, ep); | |
| 106 ep.Enumbytes = cast(uint)el.type.size(); | |
| 107 } | |
| 108 args.data[dim - (i + 1)] = cast(void *)ep; | |
| 109 } | |
| 110 | |
| 111 /* Because the number of parameters can get very large, produce | |
| 112 * a balanced binary tree so we don't blow up the stack in | |
| 113 * the subsequent tree walking code. | |
| 114 */ | |
| 115 e = el_params(args.data, dim + 1); | |
| 116 } | |
| 117 else | |
| 118 { | |
| 119 dim = 0; | |
| 120 e = el_long(TYint, 0); | |
| 121 } | |
| 122 Type tb = type.toBasetype(); | |
| 123 static if (true) { | |
| 124 e = el_param(e, type.getTypeInfo(null).toElem(irs)); | |
| 125 | |
| 126 // call _d_arrayliteralT(ti, dim, ...) | |
| 127 e = el_bin(OPcall,TYnptr,el_var(rtlsym[RTLSYM_ARRAYLITERALT]),e); | |
| 128 } else { | |
| 129 e = el_param(e, el_long(TYint, tb.next.size())); | |
| 130 | |
| 131 // call _d_arrayliteral(size, dim, ...) | |
| 132 e = el_bin(OPcall,TYnptr,el_var(rtlsym[RTLSYM_ARRAYLITERAL]),e); | |
| 133 } | |
| 134 if (tb.ty == Tarray) | |
| 135 { | |
| 136 e = el_pair(TYullong, el_long(TYint, dim), e); | |
| 137 } | |
| 138 else if (tb.ty == Tpointer) | |
| 139 { | |
| 140 } | |
| 141 else | |
| 142 { | |
| 143 e = el_una(OPind,TYstruct,e); | |
| 144 e.Enumbytes = cast(uint)type.size(); | |
| 145 } | |
| 146 | |
| 147 el_setLoc(e,loc); | |
| 148 return e; | |
| 149 } | |
| 150 | |
| 72 | 151 override bool checkSideEffect(int flag) |
| 0 | 152 { |
| 153 bool f = false; | |
| 154 | |
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parents:
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155 foreach (e; elements) |
| 0 | 156 { |
| 157 f |= e.checkSideEffect(2); | |
| 158 } | |
| 159 if (flag == 0 && f == false) | |
| 160 Expression.checkSideEffect(0); | |
| 161 | |
| 162 return f; | |
| 163 } | |
| 164 | |
| 72 | 165 override void toCBuffer(OutBuffer buf, HdrGenState* hgs) |
| 0 | 166 { |
| 167 buf.writeByte('['); | |
| 168 argsToCBuffer(buf, elements, hgs); | |
| 169 buf.writeByte(']'); | |
| 170 } | |
| 171 | |
| 72 | 172 override void toMangleBuffer(OutBuffer buf) |
| 0 | 173 { |
| 174 size_t dim = elements ? elements.dim : 0; | |
| 175 buf.printf("A%u", dim); | |
| 176 for (size_t i = 0; i < dim; i++) | |
| 177 { | |
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more Expressions work
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
84
diff
changeset
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178 auto e = elements[i]; |
| 0 | 179 e.toMangleBuffer(buf); |
| 180 } | |
| 181 } | |
| 182 | |
| 72 | 183 override void scanForNestedRef(Scope sc) |
| 0 | 184 { |
| 185 assert(false); | |
| 186 } | |
| 187 | |
| 72 | 188 override Expression optimize(int result) |
| 0 | 189 { |
| 190 if (elements) | |
| 191 { | |
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Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
72
diff
changeset
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192 foreach (ref Expression e; elements) |
| 0 | 193 { |
| 194 e = e.optimize(WANTvalue | (result & WANTinterpret)); | |
| 195 } | |
| 196 } | |
| 197 | |
| 198 return this; | |
| 199 } | |
| 200 | |
| 72 | 201 override Expression interpret(InterState istate) |
| 0 | 202 { |
| 123 | 203 Expressions expsx = null; |
| 204 | |
| 205 version (LOG) { | |
| 206 printf("ArrayLiteralExp.interpret() %.*s\n", toChars()); | |
| 207 } | |
| 208 if (elements) | |
| 209 { | |
| 210 foreach (size_t i, Expression e; elements) | |
| 211 { | |
| 212 Expression ex; | |
| 213 | |
| 214 ex = e.interpret(istate); | |
| 215 if (ex is EXP_CANT_INTERPRET) | |
| 135 | 216 goto Lerror; |
| 123 | 217 |
| 218 /* If any changes, do Copy On Write | |
| 219 */ | |
| 220 if (ex != e) | |
| 221 { | |
| 222 if (!expsx) | |
| 223 { | |
| 224 expsx = new Expressions(); | |
| 225 expsx.setDim(elements.dim); | |
| 226 for (size_t j = 0; j < elements.dim; j++) | |
| 227 { | |
| 228 expsx[j] = elements[j]; | |
| 229 } | |
| 230 } | |
| 231 expsx[i] = ex; | |
| 232 } | |
| 233 } | |
| 234 } | |
| 235 if (elements && expsx) | |
| 236 { | |
| 237 expandTuples(expsx); | |
| 238 if (expsx.dim != elements.dim) | |
| 135 | 239 goto Lerror; |
| 123 | 240 |
| 241 ArrayLiteralExp ae = new ArrayLiteralExp(loc, expsx); | |
| 242 ae.type = type; | |
| 243 | |
| 244 return ae; | |
| 245 } | |
| 246 return this; | |
| 135 | 247 |
| 248 Lerror: | |
| 249 if (expsx) | |
| 250 delete expsx; | |
| 251 error("cannot interpret array literal"); | |
| 252 return EXP_CANT_INTERPRET; | |
| 0 | 253 } |
| 254 | |
| 72 | 255 override MATCH implicitConvTo(Type t) |
| 0 | 256 { |
| 257 MATCH result = MATCHexact; | |
| 258 | |
| 259 static if (false) { | |
| 260 printf("ArrayLiteralExp.implicitConvTo(this=%s, type=%s, t=%s)\n", | |
| 261 toChars(), type.toChars(), t.toChars()); | |
| 262 } | |
| 263 Type typeb = type.toBasetype(); | |
| 264 Type tb = t.toBasetype(); | |
| 265 if ((tb.ty == Tarray || tb.ty == Tsarray) && | |
| 266 (typeb.ty == Tarray || typeb.ty == Tsarray)) | |
| 267 { | |
| 268 if (tb.ty == Tsarray) | |
| 269 { | |
| 270 TypeSArray tsa = cast(TypeSArray)tb; | |
| 271 if (elements.dim != tsa.dim.toInteger()) | |
| 272 result = MATCHnomatch; | |
| 273 } | |
| 274 | |
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parents:
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diff
changeset
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275 foreach (e; elements) |
| 0 | 276 { |
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Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
84
diff
changeset
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277 auto m = cast(MATCH)e.implicitConvTo(tb.nextOf()); |
| 0 | 278 if (m < result) |
| 279 result = m; // remember worst match | |
| 280 if (result == MATCHnomatch) | |
| 281 break; // no need to check for worse | |
| 282 } | |
| 283 return result; | |
| 284 } | |
| 285 else | |
| 286 return Expression.implicitConvTo(t); | |
| 287 } | |
| 288 | |
| 72 | 289 override Expression castTo(Scope sc, Type t) |
| 0 | 290 { |
| 291 static if (false) { | |
| 292 printf("ArrayLiteralExp.castTo(this=%s, type=%s, => %s)\n", | |
| 293 toChars(), type.toChars(), t.toChars()); | |
| 294 } | |
| 295 if (type == t) | |
| 296 return this; | |
| 297 ArrayLiteralExp e = this; | |
| 298 Type typeb = type.toBasetype(); | |
| 299 Type tb = t.toBasetype(); | |
| 300 if ((tb.ty == Tarray || tb.ty == Tsarray) && | |
| 301 (typeb.ty == Tarray || typeb.ty == Tsarray) && | |
| 302 // Not trying to convert non-void[] to void[] | |
| 303 !(tb.nextOf().toBasetype().ty == Tvoid && typeb.nextOf().toBasetype().ty != Tvoid)) | |
| 304 { | |
| 305 if (tb.ty == Tsarray) | |
| 306 { | |
| 307 TypeSArray tsa = cast(TypeSArray)tb; | |
| 308 if (elements.dim != tsa.dim.toInteger()) | |
| 309 goto L1; | |
| 310 } | |
| 311 | |
| 312 e = cast(ArrayLiteralExp)copy(); | |
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Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
72
diff
changeset
|
313 e.elements = elements.copy(); |
|
be2ab491772e
Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
72
diff
changeset
|
314 foreach (size_t i, Expression ex; elements) |
| 0 | 315 { |
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be2ab491772e
Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
72
diff
changeset
|
316 e.elements[i] = ex.castTo(sc, tb.nextOf()); |
| 0 | 317 } |
| 318 e.type = t; | |
| 319 return e; | |
| 320 } | |
| 321 if (tb.ty == Tpointer && typeb.ty == Tsarray) | |
| 322 { | |
| 323 Type tp = typeb.nextOf().pointerTo(); | |
| 324 if (!tp.equals(e.type)) | |
| 325 { | |
| 326 e = cast(ArrayLiteralExp)copy(); | |
| 327 e.type = tp; | |
| 328 } | |
| 329 } | |
| 330 L1: | |
| 331 return e.Expression.castTo(sc, t); | |
| 332 } | |
| 333 | |
| 72 | 334 override dt_t** toDt(dt_t** pdt) |
| 0 | 335 { |
| 72 | 336 //printf("ArrayLiteralExp.toDt() '%s', type = %s\n", toChars(), type.toChars()); |
| 337 | |
| 338 dt_t *d; | |
| 339 dt_t **pdtend; | |
| 340 | |
| 341 d = null; | |
| 342 pdtend = &d; | |
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more Expressions work
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
84
diff
changeset
|
343 foreach (e; elements) |
| 72 | 344 { |
| 345 pdtend = e.toDt(pdtend); | |
| 346 } | |
| 347 Type t = type.toBasetype(); | |
| 348 | |
| 349 switch (t.ty) | |
| 350 { | |
| 351 case Tsarray: | |
| 352 pdt = dtcat(pdt, d); | |
| 353 break; | |
| 354 | |
| 355 case Tpointer: | |
| 356 case Tarray: | |
| 357 if (t.ty == Tarray) | |
| 358 dtdword(pdt, elements.dim); | |
| 359 if (d) | |
| 360 { | |
| 361 // Create symbol, and then refer to it | |
| 362 Symbol* s; | |
| 363 s = static_sym(); | |
| 364 s.Sdt = d; | |
| 365 outdata(s); | |
| 366 | |
| 367 dtxoff(pdt, s, 0, TYnptr); | |
| 368 } | |
| 369 else | |
| 370 dtdword(pdt, 0); | |
| 371 | |
| 372 break; | |
| 373 | |
| 374 default: | |
| 375 assert(0); | |
| 376 } | |
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final bits of codegen implementation to compile Phobos
korDen
parents:
63
diff
changeset
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377 return pdt; |
| 0 | 378 } |
| 379 | |
| 380 version (DMDV2) { | |
| 72 | 381 override bool canThrow() |
| 0 | 382 { |
| 383 return 1; // because it can fail allocating memory | |
| 384 } | |
| 385 } | |
| 72 | 386 override int inlineCost(InlineCostState* ics) |
| 0 | 387 { |
| 388 return 1 + arrayInlineCost(ics, elements); | |
| 389 } | |
| 390 | |
| 72 | 391 override Expression doInline(InlineDoState ids) |
| 0 | 392 { |
| 393 ArrayLiteralExp ce = cast(ArrayLiteralExp)copy(); | |
| 394 ce.elements = arrayExpressiondoInline(elements, ids); | |
| 395 return ce; | |
| 396 } | |
| 397 | |
| 72 | 398 override Expression inlineScan(InlineScanState* iss) |
| 0 | 399 { |
| 400 Expression e = this; | |
| 401 | |
| 402 //printf("ArrayLiteralExp.inlineScan()\n"); | |
| 403 arrayInlineScan(iss, elements); | |
| 404 | |
| 405 return e; | |
| 406 } | |
| 407 } | |
| 408 |