Mercurial > projects > ldc
annotate dmd/expression.c @ 92:70d6113eeb8c trunk
[svn r96] Updated to DMD 1.023.
Regular bugfixes.
| author | lindquist |
|---|---|
| date | Thu, 08 Nov 2007 19:13:28 +0100 |
| parents | d8dd47ef3973 |
| children | 288fe1029e1f |
| rev | line source |
|---|---|
| 1 | 1 |
| 2 // Compiler implementation of the D programming language | |
| 3 // Copyright (c) 1999-2007 by Digital Mars | |
| 4 // All Rights Reserved | |
| 5 // written by Walter Bright | |
| 6 // http://www.digitalmars.com | |
| 7 // License for redistribution is by either the Artistic License | |
| 8 // in artistic.txt, or the GNU General Public License in gnu.txt. | |
| 9 // See the included readme.txt for details. | |
| 10 | |
| 11 #include <stdio.h> | |
| 12 #include <stdlib.h> | |
| 13 #include <ctype.h> | |
| 14 #include <assert.h> | |
| 15 #include <complex> | |
| 16 #include <math.h> | |
| 17 | |
| 18 #if _WIN32 && __DMC__ | |
| 19 extern "C" char * __cdecl __locale_decpoint; | |
| 20 #endif | |
| 21 | |
| 22 #if IN_GCC | |
| 23 // Issues with using -include total.h (defines integer_t) and then complex.h fails... | |
| 24 #undef integer_t | |
| 25 #endif | |
| 26 | |
| 27 #ifdef __APPLE__ | |
| 28 #define integer_t dmd_integer_t | |
| 29 #endif | |
| 30 | |
| 31 #if IN_GCC || IN_LLVM | |
| 32 #include "mem.h" | |
| 33 #elif _WIN32 | |
| 34 #include "..\root\mem.h" | |
| 35 #elif linux | |
| 36 #include "../root/mem.h" | |
| 37 #endif | |
| 38 | |
| 39 //#include "port.h" | |
| 40 #include "mtype.h" | |
| 41 #include "init.h" | |
| 42 #include "expression.h" | |
| 43 #include "template.h" | |
| 44 #include "utf.h" | |
| 45 #include "enum.h" | |
| 46 #include "scope.h" | |
| 47 #include "statement.h" | |
| 48 #include "declaration.h" | |
| 49 #include "aggregate.h" | |
| 50 #include "import.h" | |
| 51 #include "id.h" | |
| 52 #include "dsymbol.h" | |
| 53 #include "module.h" | |
| 54 #include "attrib.h" | |
| 55 #include "hdrgen.h" | |
| 56 #include "parse.h" | |
| 57 | |
| 58 Expression *createTypeInfoArray(Scope *sc, Expression *args[], int dim); | |
| 59 | |
| 60 #define LOGSEMANTIC 0 | |
| 61 | |
| 62 /********************************** | |
| 63 * Set operator precedence for each operator. | |
| 64 */ | |
| 65 | |
| 66 // Operator precedence - greater values are higher precedence | |
| 67 | |
| 68 enum PREC | |
| 69 { | |
| 70 PREC_zero, | |
| 71 PREC_expr, | |
| 72 PREC_assign, | |
| 73 PREC_cond, | |
| 74 PREC_oror, | |
| 75 PREC_andand, | |
| 76 PREC_or, | |
| 77 PREC_xor, | |
| 78 PREC_and, | |
| 79 PREC_equal, | |
| 80 PREC_rel, | |
| 81 PREC_shift, | |
| 82 PREC_add, | |
| 83 PREC_mul, | |
| 84 PREC_unary, | |
| 85 PREC_primary, | |
| 86 }; | |
| 87 | |
| 88 enum PREC precedence[TOKMAX]; | |
| 89 | |
| 90 void initPrecedence() | |
| 91 { | |
| 92 precedence[TOKimport] = PREC_primary; | |
| 93 precedence[TOKidentifier] = PREC_primary; | |
| 94 precedence[TOKthis] = PREC_primary; | |
| 95 precedence[TOKsuper] = PREC_primary; | |
| 96 precedence[TOKint64] = PREC_primary; | |
| 97 precedence[TOKfloat64] = PREC_primary; | |
| 98 precedence[TOKnull] = PREC_primary; | |
| 99 precedence[TOKstring] = PREC_primary; | |
| 100 precedence[TOKarrayliteral] = PREC_primary; | |
| 101 precedence[TOKtypedot] = PREC_primary; | |
| 102 precedence[TOKtypeid] = PREC_primary; | |
| 103 precedence[TOKis] = PREC_primary; | |
| 104 precedence[TOKassert] = PREC_primary; | |
| 105 precedence[TOKfunction] = PREC_primary; | |
| 106 precedence[TOKvar] = PREC_primary; | |
| 107 | |
| 108 // post | |
| 109 precedence[TOKdotti] = PREC_primary; | |
| 110 precedence[TOKdot] = PREC_primary; | |
| 111 // precedence[TOKarrow] = PREC_primary; | |
| 112 precedence[TOKplusplus] = PREC_primary; | |
| 113 precedence[TOKminusminus] = PREC_primary; | |
| 114 precedence[TOKcall] = PREC_primary; | |
| 115 precedence[TOKslice] = PREC_primary; | |
| 116 precedence[TOKarray] = PREC_primary; | |
| 117 | |
| 118 precedence[TOKaddress] = PREC_unary; | |
| 119 precedence[TOKstar] = PREC_unary; | |
| 120 precedence[TOKneg] = PREC_unary; | |
| 121 precedence[TOKuadd] = PREC_unary; | |
| 122 precedence[TOKnot] = PREC_unary; | |
| 123 precedence[TOKtobool] = PREC_add; | |
| 124 precedence[TOKtilde] = PREC_unary; | |
| 125 precedence[TOKdelete] = PREC_unary; | |
| 126 precedence[TOKnew] = PREC_unary; | |
| 127 precedence[TOKcast] = PREC_unary; | |
| 128 | |
| 129 precedence[TOKmul] = PREC_mul; | |
| 130 precedence[TOKdiv] = PREC_mul; | |
| 131 precedence[TOKmod] = PREC_mul; | |
| 132 | |
| 133 precedence[TOKadd] = PREC_add; | |
| 134 precedence[TOKmin] = PREC_add; | |
| 135 precedence[TOKcat] = PREC_add; | |
| 136 | |
| 137 precedence[TOKshl] = PREC_shift; | |
| 138 precedence[TOKshr] = PREC_shift; | |
| 139 precedence[TOKushr] = PREC_shift; | |
| 140 | |
| 141 precedence[TOKlt] = PREC_rel; | |
| 142 precedence[TOKle] = PREC_rel; | |
| 143 precedence[TOKgt] = PREC_rel; | |
| 144 precedence[TOKge] = PREC_rel; | |
| 145 precedence[TOKunord] = PREC_rel; | |
| 146 precedence[TOKlg] = PREC_rel; | |
| 147 precedence[TOKleg] = PREC_rel; | |
| 148 precedence[TOKule] = PREC_rel; | |
| 149 precedence[TOKul] = PREC_rel; | |
| 150 precedence[TOKuge] = PREC_rel; | |
| 151 precedence[TOKug] = PREC_rel; | |
| 152 precedence[TOKue] = PREC_rel; | |
| 153 precedence[TOKin] = PREC_rel; | |
| 154 | |
| 155 precedence[TOKequal] = PREC_equal; | |
| 156 precedence[TOKnotequal] = PREC_equal; | |
| 157 precedence[TOKidentity] = PREC_equal; | |
| 158 precedence[TOKnotidentity] = PREC_equal; | |
| 159 | |
| 160 precedence[TOKand] = PREC_and; | |
| 161 | |
| 162 precedence[TOKxor] = PREC_xor; | |
| 163 | |
| 164 precedence[TOKor] = PREC_or; | |
| 165 | |
| 166 precedence[TOKandand] = PREC_andand; | |
| 167 | |
| 168 precedence[TOKoror] = PREC_oror; | |
| 169 | |
| 170 precedence[TOKquestion] = PREC_cond; | |
| 171 | |
| 172 precedence[TOKassign] = PREC_assign; | |
| 173 precedence[TOKaddass] = PREC_assign; | |
| 174 precedence[TOKminass] = PREC_assign; | |
| 175 precedence[TOKcatass] = PREC_assign; | |
| 176 precedence[TOKmulass] = PREC_assign; | |
| 177 precedence[TOKdivass] = PREC_assign; | |
| 178 precedence[TOKmodass] = PREC_assign; | |
| 179 precedence[TOKshlass] = PREC_assign; | |
| 180 precedence[TOKshrass] = PREC_assign; | |
| 181 precedence[TOKushrass] = PREC_assign; | |
| 182 precedence[TOKandass] = PREC_assign; | |
| 183 precedence[TOKorass] = PREC_assign; | |
| 184 precedence[TOKxorass] = PREC_assign; | |
| 185 | |
| 186 precedence[TOKcomma] = PREC_expr; | |
| 187 } | |
| 188 | |
| 189 /***************************************** | |
| 190 * Determine if 'this' is available. | |
| 191 * If it is, return the FuncDeclaration that has it. | |
| 192 */ | |
| 193 | |
| 194 FuncDeclaration *hasThis(Scope *sc) | |
| 195 { FuncDeclaration *fd; | |
| 196 FuncDeclaration *fdthis; | |
| 197 | |
| 198 //printf("hasThis()\n"); | |
| 199 fdthis = sc->parent->isFuncDeclaration(); | |
| 200 //printf("fdthis = %p, '%s'\n", fdthis, fdthis ? fdthis->toChars() : ""); | |
| 201 | |
| 202 // Go upwards until we find the enclosing member function | |
| 203 fd = fdthis; | |
| 204 while (1) | |
| 205 { | |
| 206 if (!fd) | |
| 207 { | |
| 208 goto Lno; | |
| 209 } | |
| 210 if (!fd->isNested()) | |
| 211 break; | |
| 212 | |
| 213 Dsymbol *parent = fd->parent; | |
| 214 while (parent) | |
| 215 { | |
| 216 TemplateInstance *ti = parent->isTemplateInstance(); | |
| 217 if (ti) | |
| 218 parent = ti->parent; | |
| 219 else | |
| 220 break; | |
| 221 } | |
| 222 | |
| 223 fd = fd->parent->isFuncDeclaration(); | |
| 224 } | |
| 225 | |
| 226 if (!fd->isThis()) | |
| 227 { //printf("test '%s'\n", fd->toChars()); | |
| 228 goto Lno; | |
| 229 } | |
| 230 | |
| 231 assert(fd->vthis); | |
| 232 return fd; | |
| 233 | |
| 234 Lno: | |
| 235 return NULL; // don't have 'this' available | |
| 236 } | |
| 237 | |
| 238 | |
| 239 /*************************************** | |
| 240 * Pull out any properties. | |
| 241 */ | |
| 242 | |
| 243 Expression *resolveProperties(Scope *sc, Expression *e) | |
| 244 { | |
| 245 //printf("resolveProperties(%s)\n", e->toChars()); | |
| 246 if (e->type) | |
| 247 { | |
| 248 Type *t = e->type->toBasetype(); | |
| 249 | |
| 250 if (t->ty == Tfunction) | |
| 251 { | |
| 252 e = new CallExp(e->loc, e); | |
| 253 e = e->semantic(sc); | |
| 254 } | |
| 255 | |
| 256 /* Look for e being a lazy parameter; rewrite as delegate call | |
| 257 */ | |
| 258 else if (e->op == TOKvar) | |
| 259 { VarExp *ve = (VarExp *)e; | |
| 260 | |
| 261 if (ve->var->storage_class & STClazy) | |
| 262 { | |
| 263 e = new CallExp(e->loc, e); | |
| 264 e = e->semantic(sc); | |
| 265 } | |
| 266 } | |
| 267 | |
| 268 else if (e->op == TOKdotexp) | |
| 269 { | |
| 270 e->error("expression has no value"); | |
| 271 } | |
| 272 } | |
| 273 return e; | |
| 274 } | |
| 275 | |
| 276 /****************************** | |
| 277 * Perform semantic() on an array of Expressions. | |
| 278 */ | |
| 279 | |
| 280 void arrayExpressionSemantic(Expressions *exps, Scope *sc) | |
| 281 { | |
| 282 if (exps) | |
| 283 { | |
| 284 for (size_t i = 0; i < exps->dim; i++) | |
| 285 { Expression *e = (Expression *)exps->data[i]; | |
| 286 | |
| 287 e = e->semantic(sc); | |
| 288 exps->data[i] = (void *)e; | |
| 289 } | |
| 290 } | |
| 291 } | |
| 292 | |
| 293 /**************************************** | |
| 294 * Expand tuples. | |
| 295 */ | |
| 296 | |
| 297 void expandTuples(Expressions *exps) | |
| 298 { | |
| 299 //printf("expandTuples()\n"); | |
| 300 if (exps) | |
| 301 { | |
| 302 for (size_t i = 0; i < exps->dim; i++) | |
| 303 { Expression *arg = (Expression *)exps->data[i]; | |
| 304 if (!arg) | |
| 305 continue; | |
| 306 | |
| 307 // Look for tuple with 0 members | |
| 308 if (arg->op == TOKtype) | |
| 309 { TypeExp *e = (TypeExp *)arg; | |
| 310 if (e->type->toBasetype()->ty == Ttuple) | |
| 311 { TypeTuple *tt = (TypeTuple *)e->type->toBasetype(); | |
| 312 | |
| 313 if (!tt->arguments || tt->arguments->dim == 0) | |
| 314 { | |
| 315 exps->remove(i); | |
| 316 if (i == exps->dim) | |
| 317 return; | |
| 318 i--; | |
| 319 continue; | |
| 320 } | |
| 321 } | |
| 322 } | |
| 323 | |
| 324 // Inline expand all the tuples | |
| 325 while (arg->op == TOKtuple) | |
| 326 { TupleExp *te = (TupleExp *)arg; | |
| 327 | |
| 328 exps->remove(i); // remove arg | |
| 329 exps->insert(i, te->exps); // replace with tuple contents | |
| 330 if (i == exps->dim) | |
| 331 return; // empty tuple, no more arguments | |
| 332 arg = (Expression *)exps->data[i]; | |
| 333 } | |
| 334 } | |
| 335 } | |
| 336 } | |
| 337 | |
| 338 /**************************************** | |
| 339 * Preprocess arguments to function. | |
| 340 */ | |
| 341 | |
| 342 void preFunctionArguments(Loc loc, Scope *sc, Expressions *exps) | |
| 343 { | |
| 344 if (exps) | |
| 345 { | |
| 346 expandTuples(exps); | |
| 347 | |
| 348 for (size_t i = 0; i < exps->dim; i++) | |
| 349 { Expression *arg = (Expression *)exps->data[i]; | |
| 350 | |
| 351 if (!arg->type) | |
| 352 { | |
| 353 #ifdef DEBUG | |
| 354 if (!global.gag) | |
| 355 printf("1: \n"); | |
| 356 #endif | |
| 357 arg->error("%s is not an expression", arg->toChars()); | |
| 358 arg = new IntegerExp(arg->loc, 0, Type::tint32); | |
| 359 } | |
| 360 | |
| 361 arg = resolveProperties(sc, arg); | |
| 362 exps->data[i] = (void *) arg; | |
| 363 | |
| 364 //arg->rvalue(); | |
| 365 #if 0 | |
| 366 if (arg->type->ty == Tfunction) | |
| 367 { | |
| 368 arg = new AddrExp(arg->loc, arg); | |
| 369 arg = arg->semantic(sc); | |
| 370 exps->data[i] = (void *) arg; | |
| 371 } | |
| 372 #endif | |
| 373 } | |
| 374 } | |
| 375 } | |
| 376 | |
| 377 | |
| 378 /**************************************** | |
| 379 * Now that we know the exact type of the function we're calling, | |
| 380 * the arguments[] need to be adjusted: | |
| 381 * 1) implicitly convert argument to the corresponding parameter type | |
| 382 * 2) add default arguments for any missing arguments | |
| 383 * 3) do default promotions on arguments corresponding to ... | |
| 384 * 4) add hidden _arguments[] argument | |
| 385 */ | |
| 386 | |
| 387 void functionArguments(Loc loc, Scope *sc, TypeFunction *tf, Expressions *arguments) | |
| 388 { | |
| 389 unsigned n; | |
| 390 int done; | |
| 391 Type *tb; | |
| 392 | |
| 393 //printf("functionArguments()\n"); | |
| 394 assert(arguments); | |
| 395 size_t nargs = arguments ? arguments->dim : 0; | |
| 396 size_t nparams = Argument::dim(tf->parameters); | |
| 397 | |
| 398 if (nargs > nparams && tf->varargs == 0) | |
| 399 error(loc, "expected %zu arguments, not %zu", nparams, nargs); | |
| 400 | |
| 401 n = (nargs > nparams) ? nargs : nparams; // n = max(nargs, nparams) | |
| 402 | |
| 403 done = 0; | |
| 404 for (size_t i = 0; i < n; i++) | |
| 405 { | |
| 406 Expression *arg; | |
| 407 | |
| 408 if (i < nargs) | |
| 409 arg = (Expression *)arguments->data[i]; | |
| 410 else | |
| 411 arg = NULL; | |
| 412 | |
| 413 if (i < nparams) | |
| 414 { | |
| 415 Argument *p = Argument::getNth(tf->parameters, i); | |
| 416 | |
| 417 if (!arg) | |
| 418 { | |
| 419 if (!p->defaultArg) | |
| 420 { | |
| 421 if (tf->varargs == 2 && i + 1 == nparams) | |
| 422 goto L2; | |
| 423 error(loc, "expected %zu arguments, not %zu", nparams, nargs); | |
| 424 break; | |
| 425 } | |
| 426 arg = p->defaultArg->copy(); | |
| 427 arguments->push(arg); | |
| 428 nargs++; | |
| 429 } | |
| 430 | |
| 431 if (tf->varargs == 2 && i + 1 == nparams) | |
| 432 { | |
| 433 //printf("\t\tvarargs == 2, p->type = '%s'\n", p->type->toChars()); | |
| 434 if (arg->implicitConvTo(p->type)) | |
| 435 { | |
| 436 if (nargs != nparams) | |
| 437 error(loc, "expected %zu arguments, not %zu", nparams, nargs); | |
| 438 goto L1; | |
| 439 } | |
| 440 L2: | |
| 441 Type *tb = p->type->toBasetype(); | |
| 442 Type *tret = p->isLazyArray(); | |
| 443 switch (tb->ty) | |
| 444 { | |
| 445 case Tsarray: | |
| 446 case Tarray: | |
| 447 { // Create a static array variable v of type arg->type | |
| 448 #ifdef IN_GCC | |
| 449 /* GCC 4.0 does not like zero length arrays used like | |
| 450 this; pass a null array value instead. Could also | |
| 451 just make a one-element array. */ | |
| 452 if (nargs - i == 0) | |
| 453 { | |
| 454 arg = new NullExp(loc); | |
| 455 break; | |
| 456 } | |
| 457 #endif | |
| 458 static int idn; | |
| 459 char name[10 + sizeof(idn)*3 + 1]; | |
| 460 sprintf(name, "__arrayArg%d", ++idn); | |
| 461 Identifier *id = Lexer::idPool(name); | |
| 462 Type *t = new TypeSArray(tb->next, new IntegerExp(nargs - i)); | |
| 463 t = t->semantic(loc, sc); | |
| 464 VarDeclaration *v = new VarDeclaration(loc, t, id, new VoidInitializer(loc)); | |
| 465 v->semantic(sc); | |
| 466 v->parent = sc->parent; | |
| 467 //sc->insert(v); | |
| 468 | |
| 469 Expression *c = new DeclarationExp(0, v); | |
| 470 c->type = v->type; | |
| 471 | |
| 472 for (size_t u = i; u < nargs; u++) | |
| 473 { Expression *a = (Expression *)arguments->data[u]; | |
| 474 if (tret && !tb->next->equals(a->type)) | |
| 475 a = a->toDelegate(sc, tret); | |
| 476 | |
| 477 Expression *e = new VarExp(loc, v); | |
| 478 e = new IndexExp(loc, e, new IntegerExp(u + 1 - nparams)); | |
| 479 e = new AssignExp(loc, e, a); | |
| 480 if (c) | |
| 481 c = new CommaExp(loc, c, e); | |
| 482 else | |
| 483 c = e; | |
| 484 } | |
| 485 arg = new VarExp(loc, v); | |
| 486 if (c) | |
| 487 arg = new CommaExp(loc, c, arg); | |
| 488 break; | |
| 489 } | |
| 490 case Tclass: | |
| 491 { /* Set arg to be: | |
| 492 * new Tclass(arg0, arg1, ..., argn) | |
| 493 */ | |
| 494 Expressions *args = new Expressions(); | |
| 495 args->setDim(nargs - i); | |
| 496 for (size_t u = i; u < nargs; u++) | |
| 497 args->data[u - i] = arguments->data[u]; | |
| 498 arg = new NewExp(loc, NULL, NULL, p->type, args); | |
| 499 break; | |
| 500 } | |
| 501 default: | |
| 502 if (!arg) | |
| 503 { error(loc, "not enough arguments"); | |
| 504 return; | |
| 505 } | |
| 506 break; | |
| 507 } | |
| 508 arg = arg->semantic(sc); | |
| 509 //printf("\targ = '%s'\n", arg->toChars()); | |
| 510 arguments->setDim(i + 1); | |
| 511 done = 1; | |
| 512 } | |
| 513 | |
| 514 L1: | |
| 515 if (!(p->storageClass & STClazy && p->type->ty == Tvoid)) | |
| 516 arg = arg->implicitCastTo(sc, p->type); | |
| 517 if (p->storageClass & (STCout | STCref)) | |
| 518 { | |
| 519 // BUG: should check that argument to ref is type 'invariant' | |
| 520 // BUG: assignments to ref should also be type 'invariant' | |
| 521 arg = arg->modifiableLvalue(sc, NULL); | |
| 522 | |
| 523 //if (arg->op == TOKslice) | |
| 524 //arg->error("cannot modify slice %s", arg->toChars()); | |
| 525 } | |
| 526 | |
| 527 // Convert static arrays to pointers | |
| 528 tb = arg->type->toBasetype(); | |
| 529 if (tb->ty == Tsarray) | |
| 530 { | |
| 531 arg = arg->checkToPointer(); | |
| 532 } | |
| 533 | |
| 534 // Convert lazy argument to a delegate | |
| 535 if (p->storageClass & STClazy) | |
| 536 { | |
| 537 arg = arg->toDelegate(sc, p->type); | |
| 538 } | |
| 539 } | |
| 540 else | |
| 541 { | |
| 542 | |
| 543 // If not D linkage, do promotions | |
| 544 if (tf->linkage != LINKd) | |
| 545 { | |
| 546 // Promote bytes, words, etc., to ints | |
| 547 arg = arg->integralPromotions(sc); | |
| 548 | |
| 549 // Promote floats to doubles | |
| 550 switch (arg->type->ty) | |
| 551 { | |
| 552 case Tfloat32: | |
| 553 arg = arg->castTo(sc, Type::tfloat64); | |
| 554 break; | |
| 555 | |
| 556 case Timaginary32: | |
| 557 arg = arg->castTo(sc, Type::timaginary64); | |
| 558 break; | |
| 559 } | |
| 560 } | |
| 561 | |
| 562 // Convert static arrays to dynamic arrays | |
| 563 tb = arg->type->toBasetype(); | |
| 564 if (tb->ty == Tsarray) | |
| 565 { TypeSArray *ts = (TypeSArray *)tb; | |
| 566 Type *ta = tb->next->arrayOf(); | |
| 567 if (ts->size(arg->loc) == 0) | |
| 568 { arg = new NullExp(arg->loc); | |
| 569 arg->type = ta; | |
| 570 } | |
| 571 else | |
| 572 arg = arg->castTo(sc, ta); | |
| 573 } | |
| 574 | |
| 575 arg->rvalue(); | |
| 576 } | |
| 577 arg = arg->optimize(WANTvalue); | |
| 578 arguments->data[i] = (void *) arg; | |
| 579 if (done) | |
| 580 break; | |
| 581 } | |
| 582 | |
|
57
a9d29e9f1fed
[svn r61] Added support for D-style variadic functions :)
lindquist
parents:
42
diff
changeset
|
583 #if !IN_LLVM |
| 1 | 584 // If D linkage and variadic, add _arguments[] as first argument |
| 585 if (tf->linkage == LINKd && tf->varargs == 1) | |
| 586 { | |
| 587 Expression *e; | |
| 588 | |
| 589 e = createTypeInfoArray(sc, (Expression **)&arguments->data[nparams], | |
| 590 arguments->dim - nparams); | |
| 591 arguments->insert(0, e); | |
| 592 } | |
|
57
a9d29e9f1fed
[svn r61] Added support for D-style variadic functions :)
lindquist
parents:
42
diff
changeset
|
593 #endif |
| 1 | 594 } |
| 595 | |
| 596 /************************************************** | |
| 597 * Write expression out to buf, but wrap it | |
| 598 * in ( ) if its precedence is less than pr. | |
| 599 */ | |
| 600 | |
| 601 void expToCBuffer(OutBuffer *buf, HdrGenState *hgs, Expression *e, enum PREC pr) | |
| 602 { | |
| 603 if (precedence[e->op] < pr) | |
| 604 { | |
| 605 buf->writeByte('('); | |
| 606 e->toCBuffer(buf, hgs); | |
| 607 buf->writeByte(')'); | |
| 608 } | |
| 609 else | |
| 610 e->toCBuffer(buf, hgs); | |
| 611 } | |
| 612 | |
| 613 /************************************************** | |
| 614 * Write out argument list to buf. | |
| 615 */ | |
| 616 | |
| 617 void argsToCBuffer(OutBuffer *buf, Expressions *arguments, HdrGenState *hgs) | |
| 618 { | |
| 619 if (arguments) | |
| 620 { | |
| 621 for (size_t i = 0; i < arguments->dim; i++) | |
| 622 { Expression *arg = (Expression *)arguments->data[i]; | |
| 623 | |
| 19 | 624 if (arg) |
| 625 { if (i) | |
| 626 buf->writeByte(','); | |
| 627 expToCBuffer(buf, hgs, arg, PREC_assign); | |
| 628 } | |
| 1 | 629 } |
| 630 } | |
| 631 } | |
| 632 | |
| 633 /************************************************** | |
| 634 * Write out argument types to buf. | |
| 635 */ | |
| 636 | |
| 637 void argExpTypesToCBuffer(OutBuffer *buf, Expressions *arguments, HdrGenState *hgs) | |
| 638 { | |
| 639 if (arguments) | |
| 640 { OutBuffer argbuf; | |
| 641 | |
| 642 for (size_t i = 0; i < arguments->dim; i++) | |
| 643 { Expression *arg = (Expression *)arguments->data[i]; | |
| 644 | |
| 645 if (i) | |
| 646 buf->writeByte(','); | |
| 647 argbuf.reset(); | |
| 648 arg->type->toCBuffer2(&argbuf, NULL, hgs); | |
| 649 buf->write(&argbuf); | |
| 650 } | |
| 651 } | |
| 652 } | |
| 653 | |
| 654 /******************************** Expression **************************/ | |
| 655 | |
| 656 Expression::Expression(Loc loc, enum TOK op, int size) | |
| 657 : loc(loc) | |
| 658 { | |
| 659 this->loc = loc; | |
| 660 this->op = op; | |
| 661 this->size = size; | |
| 662 type = NULL; | |
| 663 } | |
| 664 | |
| 665 Expression *Expression::syntaxCopy() | |
| 666 { | |
| 667 //printf("Expression::syntaxCopy()\n"); | |
| 668 //dump(0); | |
| 669 return copy(); | |
| 670 } | |
| 671 | |
| 672 /********************************* | |
| 673 * Does *not* do a deep copy. | |
| 674 */ | |
| 675 | |
| 676 Expression *Expression::copy() | |
| 677 { | |
| 678 Expression *e; | |
| 679 if (!size) | |
| 680 { | |
| 681 #ifdef DEBUG | |
| 682 fprintf(stdmsg, "No expression copy for: %s\n", toChars()); | |
| 683 printf("op = %d\n", op); | |
| 684 dump(0); | |
| 685 #endif | |
| 686 assert(0); | |
| 687 } | |
| 688 e = (Expression *)mem.malloc(size); | |
| 689 return (Expression *)memcpy(e, this, size); | |
| 690 } | |
| 691 | |
| 692 /************************** | |
| 693 * Semantically analyze Expression. | |
| 694 * Determine types, fold constants, etc. | |
| 695 */ | |
| 696 | |
| 697 Expression *Expression::semantic(Scope *sc) | |
| 698 { | |
| 699 #if LOGSEMANTIC | |
| 700 printf("Expression::semantic()\n"); | |
| 701 #endif | |
| 702 if (type) | |
| 703 type = type->semantic(loc, sc); | |
| 704 else | |
| 705 type = Type::tvoid; | |
| 706 return this; | |
| 707 } | |
| 708 | |
| 709 void Expression::print() | |
| 710 { | |
| 711 fprintf(stdmsg, "%s\n", toChars()); | |
| 712 fflush(stdmsg); | |
| 713 } | |
| 714 | |
| 715 char *Expression::toChars() | |
| 716 { OutBuffer *buf; | |
| 717 HdrGenState hgs; | |
| 718 | |
| 719 memset(&hgs, 0, sizeof(hgs)); | |
| 720 buf = new OutBuffer(); | |
| 721 toCBuffer(buf, &hgs); | |
| 722 return buf->toChars(); | |
| 723 } | |
| 724 | |
| 725 void Expression::error(const char *format, ...) | |
| 726 { | |
| 727 va_list ap; | |
| 728 va_start(ap, format); | |
| 729 ::verror(loc, format, ap); | |
| 730 va_end( ap ); | |
| 731 } | |
| 732 | |
| 733 void Expression::rvalue() | |
| 734 { | |
| 735 if (type && type->toBasetype()->ty == Tvoid) | |
| 736 { error("expression %s is void and has no value", toChars()); | |
| 737 #if 0 | |
| 738 dump(0); | |
| 739 halt(); | |
| 740 #endif | |
| 741 } | |
| 742 } | |
| 743 | |
| 744 Expression *Expression::combine(Expression *e1, Expression *e2) | |
| 745 { | |
| 746 if (e1) | |
| 747 { | |
| 748 if (e2) | |
| 749 { | |
| 750 e1 = new CommaExp(e1->loc, e1, e2); | |
| 751 e1->type = e2->type; | |
| 752 } | |
| 753 } | |
| 754 else | |
| 755 e1 = e2; | |
| 756 return e1; | |
| 757 } | |
| 758 | |
| 759 integer_t Expression::toInteger() | |
| 760 { | |
| 761 //printf("Expression %s\n", Token::toChars(op)); | |
| 762 error("Integer constant expression expected instead of %s", toChars()); | |
| 763 return 0; | |
| 764 } | |
| 765 | |
| 766 uinteger_t Expression::toUInteger() | |
| 767 { | |
| 768 //printf("Expression %s\n", Token::toChars(op)); | |
| 769 return (uinteger_t)toInteger(); | |
| 770 } | |
| 771 | |
| 772 real_t Expression::toReal() | |
| 773 { | |
| 774 error("Floating point constant expression expected instead of %s", toChars()); | |
| 775 return 0; | |
| 776 } | |
| 777 | |
| 778 real_t Expression::toImaginary() | |
| 779 { | |
| 780 error("Floating point constant expression expected instead of %s", toChars()); | |
| 781 return 0; | |
| 782 } | |
| 783 | |
| 784 complex_t Expression::toComplex() | |
| 785 { | |
| 786 error("Floating point constant expression expected instead of %s", toChars()); | |
| 787 #ifdef IN_GCC | |
| 788 return complex_t(real_t(0)); // %% nicer | |
| 789 #else | |
| 790 return 0; | |
| 791 #endif | |
| 792 } | |
| 793 | |
| 794 void Expression::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 795 { | |
| 796 buf->writestring(Token::toChars(op)); | |
| 797 } | |
| 798 | |
| 799 void Expression::toMangleBuffer(OutBuffer *buf) | |
| 800 { | |
| 801 error("expression %s is not a valid template value argument", toChars()); | |
| 802 } | |
| 803 | |
| 804 /******************************* | |
| 805 * Give error if we're not an lvalue. | |
| 806 * If we can, convert expression to be an lvalue. | |
| 807 */ | |
| 808 | |
| 809 Expression *Expression::toLvalue(Scope *sc, Expression *e) | |
| 810 { | |
| 811 if (!e) | |
| 812 e = this; | |
| 813 else if (!loc.filename) | |
| 814 loc = e->loc; | |
| 815 error("%s is not an lvalue", e->toChars()); | |
| 816 return this; | |
| 817 } | |
| 818 | |
| 819 Expression *Expression::modifiableLvalue(Scope *sc, Expression *e) | |
| 820 { | |
| 821 // See if this expression is a modifiable lvalue (i.e. not const) | |
| 822 return toLvalue(sc, e); | |
| 823 } | |
| 824 | |
| 825 /************************************ | |
| 826 * Detect cases where pointers to the stack can 'escape' the | |
| 827 * lifetime of the stack frame. | |
| 828 */ | |
| 829 | |
| 830 void Expression::checkEscape() | |
| 831 { | |
| 832 } | |
| 833 | |
| 834 void Expression::checkScalar() | |
| 835 { | |
| 836 if (!type->isscalar()) | |
| 837 error("'%s' is not a scalar, it is a %s", toChars(), type->toChars()); | |
| 838 } | |
| 839 | |
| 840 void Expression::checkNoBool() | |
| 841 { | |
| 842 if (type->toBasetype()->ty == Tbool) | |
| 843 error("operation not allowed on bool '%s'", toChars()); | |
| 844 } | |
| 845 | |
| 846 Expression *Expression::checkIntegral() | |
| 847 { | |
| 848 if (!type->isintegral()) | |
| 849 { error("'%s' is not of integral type, it is a %s", toChars(), type->toChars()); | |
| 850 return new IntegerExp(0); | |
| 851 } | |
| 852 return this; | |
| 853 } | |
| 854 | |
| 92 | 855 Expression *Expression::checkArithmetic() |
| 1 | 856 { |
| 857 if (!type->isintegral() && !type->isfloating()) | |
| 92 | 858 { error("'%s' is not of arithmetic type, it is a %s", toChars(), type->toChars()); |
| 859 return new IntegerExp(0); | |
| 860 } | |
| 861 return this; | |
| 1 | 862 } |
| 863 | |
| 864 void Expression::checkDeprecated(Scope *sc, Dsymbol *s) | |
| 865 { | |
| 866 s->checkDeprecated(loc, sc); | |
| 867 } | |
| 868 | |
| 869 /******************************** | |
| 870 * Check for expressions that have no use. | |
| 871 * Input: | |
| 872 * flag 0 not going to use the result, so issue error message if no | |
| 873 * side effects | |
| 874 * 1 the result of the expression is used, but still check | |
| 875 * for useless subexpressions | |
| 876 * 2 do not issue error messages, just return !=0 if expression | |
| 877 * has side effects | |
| 878 */ | |
| 879 | |
| 880 int Expression::checkSideEffect(int flag) | |
| 881 { | |
| 882 if (flag == 0) | |
| 883 { if (op == TOKimport) | |
| 884 { | |
| 885 error("%s has no effect", toChars()); | |
| 886 } | |
| 887 else | |
| 888 error("%s has no effect in expression (%s)", | |
| 889 Token::toChars(op), toChars()); | |
| 890 } | |
| 891 return 0; | |
| 892 } | |
| 893 | |
| 894 /***************************** | |
| 895 * Check that expression can be tested for true or false. | |
| 896 */ | |
| 897 | |
| 898 Expression *Expression::checkToBoolean() | |
| 899 { | |
| 900 // Default is 'yes' - do nothing | |
| 901 | |
| 902 #ifdef DEBUG | |
| 903 if (!type) | |
| 904 dump(0); | |
| 905 #endif | |
| 906 | |
| 907 if (!type->checkBoolean()) | |
| 908 { | |
| 909 error("expression %s of type %s does not have a boolean value", toChars(), type->toChars()); | |
| 910 } | |
| 911 return this; | |
| 912 } | |
| 913 | |
| 914 /**************************** | |
| 915 */ | |
| 916 | |
| 917 Expression *Expression::checkToPointer() | |
| 918 { | |
| 919 Expression *e; | |
| 920 Type *tb; | |
| 921 | |
| 922 //printf("Expression::checkToPointer()\n"); | |
| 923 e = this; | |
| 924 | |
| 925 // If C static array, convert to pointer | |
| 926 tb = type->toBasetype(); | |
| 927 if (tb->ty == Tsarray) | |
| 928 { TypeSArray *ts = (TypeSArray *)tb; | |
| 929 if (ts->size(loc) == 0) | |
| 930 e = new NullExp(loc); | |
| 931 else | |
| 932 e = new AddrExp(loc, this); | |
| 933 e->type = tb->next->pointerTo(); | |
| 934 } | |
| 935 return e; | |
| 936 } | |
| 937 | |
| 938 /****************************** | |
| 939 * Take address of expression. | |
| 940 */ | |
| 941 | |
| 942 Expression *Expression::addressOf(Scope *sc) | |
| 943 { | |
| 944 Expression *e; | |
| 945 | |
| 946 //printf("Expression::addressOf()\n"); | |
| 947 e = toLvalue(sc, NULL); | |
| 948 e = new AddrExp(loc, e); | |
| 949 e->type = type->pointerTo(); | |
| 950 return e; | |
| 951 } | |
| 952 | |
| 953 /****************************** | |
| 954 * If this is a reference, dereference it. | |
| 955 */ | |
| 956 | |
| 957 Expression *Expression::deref() | |
| 958 { | |
| 959 //printf("Expression::deref()\n"); | |
| 960 if (type->ty == Treference) | |
| 961 { Expression *e; | |
| 962 | |
| 963 e = new PtrExp(loc, this); | |
| 964 e->type = type->next; | |
| 965 return e; | |
| 966 } | |
| 967 return this; | |
| 968 } | |
| 969 | |
| 970 /******************************** | |
| 971 * Does this expression statically evaluate to a boolean TRUE or FALSE? | |
| 972 */ | |
| 973 | |
| 974 int Expression::isBool(int result) | |
| 975 { | |
| 976 return FALSE; | |
| 977 } | |
| 978 | |
| 979 /******************************** | |
| 980 * Does this expression result in either a 1 or a 0? | |
| 981 */ | |
| 982 | |
| 983 int Expression::isBit() | |
| 984 { | |
| 985 return FALSE; | |
| 986 } | |
| 987 | |
| 988 Expressions *Expression::arraySyntaxCopy(Expressions *exps) | |
| 989 { Expressions *a = NULL; | |
| 990 | |
| 991 if (exps) | |
| 992 { | |
| 993 a = new Expressions(); | |
| 994 a->setDim(exps->dim); | |
| 995 for (int i = 0; i < a->dim; i++) | |
| 996 { Expression *e = (Expression *)exps->data[i]; | |
| 997 | |
| 998 e = e->syntaxCopy(); | |
| 999 a->data[i] = e; | |
| 1000 } | |
| 1001 } | |
| 1002 return a; | |
| 1003 } | |
| 1004 | |
| 1005 /******************************** IntegerExp **************************/ | |
| 1006 | |
| 1007 IntegerExp::IntegerExp(Loc loc, integer_t value, Type *type) | |
| 1008 : Expression(loc, TOKint64, sizeof(IntegerExp)) | |
| 1009 { | |
| 1010 //printf("IntegerExp(value = %lld, type = '%s')\n", value, type ? type->toChars() : ""); | |
| 1011 if (type && !type->isscalar()) | |
| 1012 { | |
| 1013 error("integral constant must be scalar type, not %s", type->toChars()); | |
| 1014 type = Type::terror; | |
| 1015 } | |
| 1016 this->type = type; | |
| 1017 this->value = value; | |
| 1018 } | |
| 1019 | |
| 1020 IntegerExp::IntegerExp(integer_t value) | |
| 1021 : Expression(0, TOKint64, sizeof(IntegerExp)) | |
| 1022 { | |
| 1023 this->type = Type::tint32; | |
| 1024 this->value = value; | |
| 1025 } | |
| 1026 | |
| 1027 int IntegerExp::equals(Object *o) | |
| 1028 { IntegerExp *ne; | |
| 1029 | |
| 1030 if (this == o || | |
| 1031 (((Expression *)o)->op == TOKint64 && | |
| 1032 ((ne = (IntegerExp *)o), type->equals(ne->type)) && | |
| 1033 value == ne->value)) | |
| 1034 return 1; | |
| 1035 return 0; | |
| 1036 } | |
| 1037 | |
| 1038 char *IntegerExp::toChars() | |
| 1039 { | |
| 1040 #if 1 | |
| 1041 return Expression::toChars(); | |
| 1042 #else | |
| 1043 static char buffer[sizeof(value) * 3 + 1]; | |
| 1044 | |
| 1045 sprintf(buffer, "%jd", value); | |
| 1046 return buffer; | |
| 1047 #endif | |
| 1048 } | |
| 1049 | |
| 1050 integer_t IntegerExp::toInteger() | |
| 1051 { Type *t; | |
| 1052 | |
| 1053 t = type; | |
| 1054 while (t) | |
| 1055 { | |
| 1056 switch (t->ty) | |
| 1057 { | |
| 1058 case Tbit: | |
| 1059 case Tbool: value = (value != 0); break; | |
| 1060 case Tint8: value = (d_int8) value; break; | |
| 1061 case Tchar: | |
| 1062 case Tuns8: value = (d_uns8) value; break; | |
| 1063 case Tint16: value = (d_int16) value; break; | |
| 1064 case Twchar: | |
| 1065 case Tuns16: value = (d_uns16) value; break; | |
| 1066 case Tint32: value = (d_int32) value; break; | |
| 1067 case Tpointer: | |
| 1068 case Tdchar: | |
| 1069 case Tuns32: value = (d_uns32) value; break; | |
| 1070 case Tint64: value = (d_int64) value; break; | |
| 1071 case Tuns64: value = (d_uns64) value; break; | |
| 1072 | |
| 1073 case Tenum: | |
| 1074 { | |
| 1075 TypeEnum *te = (TypeEnum *)t; | |
| 1076 t = te->sym->memtype; | |
| 1077 continue; | |
| 1078 } | |
| 1079 | |
| 1080 case Ttypedef: | |
| 1081 { | |
| 1082 TypeTypedef *tt = (TypeTypedef *)t; | |
| 1083 t = tt->sym->basetype; | |
| 1084 continue; | |
| 1085 } | |
| 1086 | |
| 1087 default: | |
| 1088 print(); | |
| 1089 type->print(); | |
| 1090 assert(0); | |
| 1091 break; | |
| 1092 } | |
| 1093 break; | |
| 1094 } | |
| 1095 return value; | |
| 1096 } | |
| 1097 | |
| 1098 real_t IntegerExp::toReal() | |
| 1099 { | |
| 1100 Type *t; | |
| 1101 | |
| 1102 toInteger(); | |
| 1103 t = type->toBasetype(); | |
| 1104 if (t->ty == Tuns64) | |
| 1105 return (real_t)(d_uns64)value; | |
| 1106 else | |
| 1107 return (real_t)(d_int64)value; | |
| 1108 } | |
| 1109 | |
| 1110 real_t IntegerExp::toImaginary() | |
| 1111 { | |
| 1112 return (real_t) 0; | |
| 1113 } | |
| 1114 | |
| 1115 complex_t IntegerExp::toComplex() | |
| 1116 { | |
| 1117 return toReal(); | |
| 1118 } | |
| 1119 | |
| 1120 int IntegerExp::isBool(int result) | |
| 1121 { | |
| 1122 return result ? value != 0 : value == 0; | |
| 1123 } | |
| 1124 | |
| 1125 Expression *IntegerExp::semantic(Scope *sc) | |
| 1126 { | |
| 1127 if (!type) | |
| 1128 { | |
| 1129 // Determine what the type of this number is | |
| 1130 integer_t number = value; | |
| 1131 | |
| 1132 if (number & 0x8000000000000000LL) | |
| 1133 type = Type::tuns64; | |
| 1134 else if (number & 0xFFFFFFFF80000000LL) | |
| 1135 type = Type::tint64; | |
| 1136 else | |
| 1137 type = Type::tint32; | |
| 1138 } | |
| 1139 else | |
| 1140 { type = type->semantic(loc, sc); | |
| 1141 } | |
| 1142 return this; | |
| 1143 } | |
| 1144 | |
| 1145 Expression *IntegerExp::toLvalue(Scope *sc, Expression *e) | |
| 1146 { | |
| 1147 if (!e) | |
| 1148 e = this; | |
| 1149 else if (!loc.filename) | |
| 1150 loc = e->loc; | |
| 1151 e->error("constant %s is not an lvalue", e->toChars()); | |
| 1152 return this; | |
| 1153 } | |
| 1154 | |
| 1155 void IntegerExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1156 { | |
| 1157 integer_t v = toInteger(); | |
| 1158 | |
| 1159 if (type) | |
| 1160 { Type *t = type; | |
| 1161 | |
| 1162 L1: | |
| 1163 switch (t->ty) | |
| 1164 { | |
| 1165 case Tenum: | |
| 1166 { TypeEnum *te = (TypeEnum *)t; | |
| 1167 buf->printf("cast(%s)", te->sym->toChars()); | |
| 1168 t = te->sym->memtype; | |
| 1169 goto L1; | |
| 1170 } | |
| 1171 | |
| 1172 case Ttypedef: | |
| 1173 { TypeTypedef *tt = (TypeTypedef *)t; | |
| 1174 buf->printf("cast(%s)", tt->sym->toChars()); | |
| 1175 t = tt->sym->basetype; | |
| 1176 goto L1; | |
| 1177 } | |
| 1178 | |
| 1179 case Twchar: // BUG: need to cast(wchar) | |
| 1180 case Tdchar: // BUG: need to cast(dchar) | |
| 1181 if ((uinteger_t)v > 0xFF) | |
| 1182 { | |
| 1183 buf->printf("'\\U%08x'", v); | |
| 1184 break; | |
| 1185 } | |
| 1186 case Tchar: | |
| 1187 if (v == '\'') | |
| 1188 buf->writestring("'\\''"); | |
| 1189 else if (isprint(v) && v != '\\') | |
| 1190 buf->printf("'%c'", (int)v); | |
| 1191 else | |
| 1192 buf->printf("'\\x%02x'", (int)v); | |
| 1193 break; | |
| 1194 | |
| 1195 case Tint8: | |
| 1196 buf->writestring("cast(byte)"); | |
| 1197 goto L2; | |
| 1198 | |
| 1199 case Tint16: | |
| 1200 buf->writestring("cast(short)"); | |
| 1201 goto L2; | |
| 1202 | |
| 1203 case Tint32: | |
| 1204 L2: | |
| 1205 buf->printf("%d", (int)v); | |
| 1206 break; | |
| 1207 | |
| 1208 case Tuns8: | |
| 1209 buf->writestring("cast(ubyte)"); | |
| 1210 goto L3; | |
| 1211 | |
| 1212 case Tuns16: | |
| 1213 buf->writestring("cast(ushort)"); | |
| 1214 goto L3; | |
| 1215 | |
| 1216 case Tuns32: | |
| 1217 L3: | |
| 1218 buf->printf("%du", (unsigned)v); | |
| 1219 break; | |
| 1220 | |
| 1221 case Tint64: | |
| 1222 buf->printf("%jdL", v); | |
| 1223 break; | |
| 1224 | |
| 1225 case Tuns64: | |
| 1226 buf->printf("%juLU", v); | |
| 1227 break; | |
| 1228 | |
| 1229 case Tbit: | |
| 1230 case Tbool: | |
| 1231 buf->writestring((char *)(v ? "true" : "false")); | |
| 1232 break; | |
| 1233 | |
| 1234 case Tpointer: | |
| 1235 buf->writestring("cast("); | |
| 1236 buf->writestring(t->toChars()); | |
| 1237 buf->writeByte(')'); | |
| 1238 goto L3; | |
| 1239 | |
| 1240 default: | |
| 1241 #ifdef DEBUG | |
| 1242 t->print(); | |
| 1243 #endif | |
| 1244 assert(0); | |
| 1245 } | |
| 1246 } | |
| 1247 else if (v & 0x8000000000000000LL) | |
| 1248 buf->printf("0x%jx", v); | |
| 1249 else | |
| 1250 buf->printf("%jd", v); | |
| 1251 } | |
| 1252 | |
| 1253 void IntegerExp::toMangleBuffer(OutBuffer *buf) | |
| 1254 { | |
| 1255 if ((sinteger_t)value < 0) | |
| 1256 buf->printf("N%jd", -value); | |
| 1257 else | |
| 1258 buf->printf("%jd", value); | |
| 1259 } | |
| 1260 | |
| 1261 /******************************** RealExp **************************/ | |
| 1262 | |
| 1263 RealExp::RealExp(Loc loc, real_t value, Type *type) | |
| 1264 : Expression(loc, TOKfloat64, sizeof(RealExp)) | |
| 1265 { | |
| 1266 //printf("RealExp::RealExp(%Lg)\n", value); | |
| 1267 this->value = value; | |
| 1268 this->type = type; | |
| 1269 } | |
| 1270 | |
| 1271 char *RealExp::toChars() | |
| 1272 { | |
| 1273 static char buffer[sizeof(value) * 3 + 8 + 1 + 1]; | |
| 1274 | |
| 1275 #ifdef IN_GCC | |
| 1276 value.format(buffer, sizeof(buffer)); | |
| 1277 if (type->isimaginary()) | |
| 1278 strcat(buffer, "i"); | |
| 1279 #else | |
| 1280 sprintf(buffer, type->isimaginary() ? "%Lgi" : "%Lg", value); | |
| 1281 #endif | |
| 1282 assert(strlen(buffer) < sizeof(buffer)); | |
| 1283 return buffer; | |
| 1284 } | |
| 1285 | |
| 1286 integer_t RealExp::toInteger() | |
| 1287 { | |
| 1288 #ifdef IN_GCC | |
| 1289 return toReal().toInt(); | |
| 1290 #else | |
| 1291 return (sinteger_t) toReal(); | |
| 1292 #endif | |
| 1293 } | |
| 1294 | |
| 1295 uinteger_t RealExp::toUInteger() | |
| 1296 { | |
| 1297 #ifdef IN_GCC | |
| 1298 return (uinteger_t) toReal().toInt(); | |
| 1299 #else | |
| 1300 return (uinteger_t) toReal(); | |
| 1301 #endif | |
| 1302 } | |
| 1303 | |
| 1304 real_t RealExp::toReal() | |
| 1305 { | |
| 1306 return type->isreal() ? value : 0; | |
| 1307 } | |
| 1308 | |
| 1309 real_t RealExp::toImaginary() | |
| 1310 { | |
| 1311 return type->isreal() ? 0 : value; | |
| 1312 } | |
| 1313 | |
| 1314 complex_t RealExp::toComplex() | |
| 1315 { | |
| 1316 #ifdef __DMC__ | |
| 1317 return toReal() + toImaginary() * I; | |
| 1318 #else | |
| 1319 return complex_t(toReal(), toImaginary()); | |
| 1320 #endif | |
| 1321 } | |
| 1322 | |
| 1323 /******************************** | |
| 1324 * Test to see if two reals are the same. | |
| 1325 * Regard NaN's as equivalent. | |
| 1326 * Regard +0 and -0 as different. | |
| 1327 */ | |
| 1328 | |
| 1329 int RealEquals(real_t x1, real_t x2) | |
| 1330 { | |
| 1331 return (isnan(x1) && isnan(x2)) || | |
| 1332 /* In some cases, the REALPAD bytes get garbage in them, | |
| 1333 * so be sure and ignore them. | |
| 1334 */ | |
| 1335 memcmp(&x1, &x2, REALSIZE - REALPAD) == 0; | |
| 1336 } | |
| 1337 | |
| 1338 int RealExp::equals(Object *o) | |
| 1339 { RealExp *ne; | |
| 1340 | |
| 1341 if (this == o || | |
| 1342 (((Expression *)o)->op == TOKfloat64 && | |
| 1343 ((ne = (RealExp *)o), type->equals(ne->type)) && | |
| 1344 RealEquals(value, ne->value) | |
| 1345 ) | |
| 1346 ) | |
| 1347 return 1; | |
| 1348 return 0; | |
| 1349 } | |
| 1350 | |
| 1351 Expression *RealExp::semantic(Scope *sc) | |
| 1352 { | |
| 1353 if (!type) | |
| 1354 type = Type::tfloat64; | |
| 1355 else | |
| 1356 type = type->semantic(loc, sc); | |
| 1357 return this; | |
| 1358 } | |
| 1359 | |
| 1360 int RealExp::isBool(int result) | |
| 1361 { | |
| 1362 #ifdef IN_GCC | |
| 1363 return result ? (! value.isZero()) : (value.isZero()); | |
| 1364 #else | |
| 1365 return result ? (value != 0) | |
| 1366 : (value == 0); | |
| 1367 #endif | |
| 1368 } | |
| 1369 | |
| 1370 void floatToBuffer(OutBuffer *buf, Type *type, real_t value) | |
| 1371 { | |
| 1372 /* In order to get an exact representation, try converting it | |
| 1373 * to decimal then back again. If it matches, use it. | |
| 1374 * If it doesn't, fall back to hex, which is | |
| 1375 * always exact. | |
| 1376 */ | |
| 1377 char buffer[25]; | |
| 1378 sprintf(buffer, "%Lg", value); | |
| 1379 assert(strlen(buffer) < sizeof(buffer)); | |
| 1380 #if _WIN32 && __DMC__ | |
| 1381 char *save = __locale_decpoint; | |
| 1382 __locale_decpoint = "."; | |
| 1383 real_t r = strtold(buffer, NULL); | |
| 1384 __locale_decpoint = save; | |
| 1385 #else | |
| 1386 real_t r = strtold(buffer, NULL); | |
| 1387 #endif | |
| 1388 if (r == value) // if exact duplication | |
| 1389 buf->writestring(buffer); | |
| 1390 else | |
| 1391 buf->printf("%La", value); // ensure exact duplication | |
| 1392 | |
| 1393 if (type) | |
| 1394 { | |
| 1395 Type *t = type->toBasetype(); | |
| 1396 switch (t->ty) | |
| 1397 { | |
| 1398 case Tfloat32: | |
| 1399 case Timaginary32: | |
| 1400 case Tcomplex32: | |
| 1401 buf->writeByte('F'); | |
| 1402 break; | |
| 1403 | |
| 1404 case Tfloat80: | |
| 1405 case Timaginary80: | |
| 1406 case Tcomplex80: | |
| 1407 buf->writeByte('L'); | |
| 1408 break; | |
| 1409 | |
| 1410 default: | |
| 1411 break; | |
| 1412 } | |
| 1413 if (t->isimaginary()) | |
| 1414 buf->writeByte('i'); | |
| 1415 } | |
| 1416 } | |
| 1417 | |
| 1418 void RealExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1419 { | |
| 1420 floatToBuffer(buf, type, value); | |
| 1421 } | |
| 1422 | |
| 1423 void realToMangleBuffer(OutBuffer *buf, real_t value) | |
| 1424 { | |
| 1425 /* Rely on %A to get portable mangling. | |
| 1426 * Must munge result to get only identifier characters. | |
| 1427 * | |
| 1428 * Possible values from %A => mangled result | |
| 1429 * NAN => NAN | |
| 1430 * -INF => NINF | |
| 1431 * INF => INF | |
| 1432 * -0X1.1BC18BA997B95P+79 => N11BC18BA997B95P79 | |
| 1433 * 0X1.9P+2 => 19P2 | |
| 1434 */ | |
| 1435 | |
| 1436 if (isnan(value)) | |
| 1437 buf->writestring("NAN"); // no -NAN bugs | |
| 1438 else | |
| 1439 { | |
| 1440 char buffer[32]; | |
| 1441 int n = sprintf(buffer, "%LA", value); | |
| 1442 assert(n > 0 && n < sizeof(buffer)); | |
| 1443 for (int i = 0; i < n; i++) | |
| 1444 { char c = buffer[i]; | |
| 1445 | |
| 1446 switch (c) | |
| 1447 { | |
| 1448 case '-': | |
| 1449 buf->writeByte('N'); | |
| 1450 break; | |
| 1451 | |
| 1452 case '+': | |
| 1453 case 'X': | |
| 1454 case '.': | |
| 1455 break; | |
| 1456 | |
| 1457 case '0': | |
| 1458 if (i < 2) | |
| 1459 break; // skip leading 0X | |
| 1460 default: | |
| 1461 buf->writeByte(c); | |
| 1462 break; | |
| 1463 } | |
| 1464 } | |
| 1465 } | |
| 1466 } | |
| 1467 | |
| 1468 void RealExp::toMangleBuffer(OutBuffer *buf) | |
| 1469 { | |
| 1470 buf->writeByte('e'); | |
| 1471 realToMangleBuffer(buf, value); | |
| 1472 } | |
| 1473 | |
| 1474 | |
| 1475 /******************************** ComplexExp **************************/ | |
| 1476 | |
| 1477 ComplexExp::ComplexExp(Loc loc, complex_t value, Type *type) | |
| 1478 : Expression(loc, TOKcomplex80, sizeof(ComplexExp)) | |
| 1479 { | |
| 1480 this->value = value; | |
| 1481 this->type = type; | |
| 1482 //printf("ComplexExp::ComplexExp(%s)\n", toChars()); | |
| 1483 } | |
| 1484 | |
| 1485 char *ComplexExp::toChars() | |
| 1486 { | |
| 1487 static char buffer[sizeof(value) * 3 + 8 + 1]; | |
| 1488 | |
| 1489 #ifdef IN_GCC | |
| 1490 char buf1[sizeof(value) * 3 + 8 + 1]; | |
| 1491 char buf2[sizeof(value) * 3 + 8 + 1]; | |
| 1492 creall(value).format(buf1, sizeof(buf1)); | |
| 1493 cimagl(value).format(buf2, sizeof(buf2)); | |
| 1494 sprintf(buffer, "(%s+%si)", buf1, buf2); | |
| 1495 #else | |
| 1496 sprintf(buffer, "(%Lg+%Lgi)", creall(value), cimagl(value)); | |
| 1497 assert(strlen(buffer) < sizeof(buffer)); | |
| 1498 #endif | |
| 1499 return buffer; | |
| 1500 } | |
| 1501 | |
| 1502 integer_t ComplexExp::toInteger() | |
| 1503 { | |
| 1504 #ifdef IN_GCC | |
| 1505 return (sinteger_t) toReal().toInt(); | |
| 1506 #else | |
| 1507 return (sinteger_t) toReal(); | |
| 1508 #endif | |
| 1509 } | |
| 1510 | |
| 1511 uinteger_t ComplexExp::toUInteger() | |
| 1512 { | |
| 1513 #ifdef IN_GCC | |
| 1514 return (uinteger_t) toReal().toInt(); | |
| 1515 #else | |
| 1516 return (uinteger_t) toReal(); | |
| 1517 #endif | |
| 1518 } | |
| 1519 | |
| 1520 real_t ComplexExp::toReal() | |
| 1521 { | |
| 1522 return creall(value); | |
| 1523 } | |
| 1524 | |
| 1525 real_t ComplexExp::toImaginary() | |
| 1526 { | |
| 1527 return cimagl(value); | |
| 1528 } | |
| 1529 | |
| 1530 complex_t ComplexExp::toComplex() | |
| 1531 { | |
| 1532 return value; | |
| 1533 } | |
| 1534 | |
| 1535 int ComplexExp::equals(Object *o) | |
| 1536 { ComplexExp *ne; | |
| 1537 | |
| 1538 if (this == o || | |
| 1539 (((Expression *)o)->op == TOKcomplex80 && | |
| 1540 ((ne = (ComplexExp *)o), type->equals(ne->type)) && | |
| 1541 RealEquals(creall(value), creall(ne->value)) && | |
| 1542 RealEquals(cimagl(value), cimagl(ne->value)) | |
| 1543 ) | |
| 1544 ) | |
| 1545 return 1; | |
| 1546 return 0; | |
| 1547 } | |
| 1548 | |
| 1549 Expression *ComplexExp::semantic(Scope *sc) | |
| 1550 { | |
| 1551 if (!type) | |
| 1552 type = Type::tcomplex80; | |
| 1553 else | |
| 1554 type = type->semantic(loc, sc); | |
| 1555 return this; | |
| 1556 } | |
| 1557 | |
| 1558 int ComplexExp::isBool(int result) | |
| 1559 { | |
| 1560 if (result) | |
| 1561 return (bool)(value); | |
| 1562 else | |
| 1563 return !value; | |
| 1564 } | |
| 1565 | |
| 1566 void ComplexExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1567 { | |
| 1568 /* Print as: | |
| 1569 * (re+imi) | |
| 1570 */ | |
| 1571 #ifdef IN_GCC | |
| 1572 char buf1[sizeof(value) * 3 + 8 + 1]; | |
| 1573 char buf2[sizeof(value) * 3 + 8 + 1]; | |
| 1574 creall(value).format(buf1, sizeof(buf1)); | |
| 1575 cimagl(value).format(buf2, sizeof(buf2)); | |
| 1576 buf->printf("(%s+%si)", buf1, buf2); | |
| 1577 #else | |
| 1578 buf->writeByte('('); | |
| 1579 floatToBuffer(buf, type, creall(value)); | |
| 1580 buf->writeByte('+'); | |
| 1581 floatToBuffer(buf, type, cimagl(value)); | |
| 1582 buf->writestring("i)"); | |
| 1583 #endif | |
| 1584 } | |
| 1585 | |
| 1586 void ComplexExp::toMangleBuffer(OutBuffer *buf) | |
| 1587 { | |
| 1588 buf->writeByte('c'); | |
| 1589 real_t r = toReal(); | |
| 1590 realToMangleBuffer(buf, r); | |
| 1591 buf->writeByte('c'); // separate the two | |
| 1592 r = toImaginary(); | |
| 1593 realToMangleBuffer(buf, r); | |
| 1594 } | |
| 1595 | |
| 1596 /******************************** IdentifierExp **************************/ | |
| 1597 | |
| 1598 IdentifierExp::IdentifierExp(Loc loc, Identifier *ident) | |
| 1599 : Expression(loc, TOKidentifier, sizeof(IdentifierExp)) | |
| 1600 { | |
| 1601 this->ident = ident; | |
| 1602 } | |
| 1603 | |
| 1604 Expression *IdentifierExp::semantic(Scope *sc) | |
| 1605 { | |
| 1606 Dsymbol *s; | |
| 1607 Dsymbol *scopesym; | |
| 1608 | |
| 1609 #if LOGSEMANTIC | |
| 1610 printf("IdentifierExp::semantic('%s')\n", ident->toChars()); | |
| 1611 #endif | |
| 1612 s = sc->search(loc, ident, &scopesym); | |
| 1613 if (s) | |
| 1614 { Expression *e; | |
| 1615 WithScopeSymbol *withsym; | |
| 1616 | |
| 1617 // See if it was a with class | |
| 1618 withsym = scopesym->isWithScopeSymbol(); | |
| 1619 if (withsym) | |
| 1620 { | |
| 1621 s = s->toAlias(); | |
| 1622 | |
| 1623 // Same as wthis.ident | |
| 1624 if (s->needThis() || s->isTemplateDeclaration()) | |
| 1625 { | |
| 1626 e = new VarExp(loc, withsym->withstate->wthis); | |
| 1627 e = new DotIdExp(loc, e, ident); | |
| 1628 } | |
| 1629 else | |
| 1630 { Type *t = withsym->withstate->wthis->type; | |
| 1631 if (t->ty == Tpointer) | |
| 1632 t = t->next; | |
| 1633 e = new TypeDotIdExp(loc, t, ident); | |
| 1634 } | |
| 1635 } | |
| 1636 else | |
| 1637 { | |
| 1638 if (!s->parent && scopesym->isArrayScopeSymbol()) | |
| 1639 { // Kludge to run semantic() here because | |
| 1640 // ArrayScopeSymbol::search() doesn't have access to sc. | |
| 1641 s->semantic(sc); | |
| 1642 } | |
| 1643 // Look to see if f is really a function template | |
| 1644 FuncDeclaration *f = s->isFuncDeclaration(); | |
| 1645 if (f && f->parent) | |
| 1646 { TemplateInstance *ti = f->parent->isTemplateInstance(); | |
| 1647 | |
| 1648 if (ti && | |
| 1649 !ti->isTemplateMixin() && | |
| 1650 (ti->name == f->ident || | |
| 1651 ti->toAlias()->ident == f->ident) | |
| 1652 && | |
| 1653 ti->tempdecl && ti->tempdecl->onemember) | |
| 1654 { | |
| 1655 TemplateDeclaration *tempdecl = ti->tempdecl; | |
| 1656 if (tempdecl->overroot) // if not start of overloaded list of TemplateDeclaration's | |
| 1657 tempdecl = tempdecl->overroot; // then get the start | |
| 1658 e = new TemplateExp(loc, tempdecl); | |
| 1659 e = e->semantic(sc); | |
| 1660 return e; | |
| 1661 } | |
| 1662 } | |
| 1663 e = new DsymbolExp(loc, s); | |
| 1664 } | |
| 1665 return e->semantic(sc); | |
| 1666 } | |
| 1667 error("undefined identifier %s", ident->toChars()); | |
| 1668 type = Type::terror; | |
| 1669 return this; | |
| 1670 } | |
| 1671 | |
| 1672 char *IdentifierExp::toChars() | |
| 1673 { | |
| 1674 return ident->toChars(); | |
| 1675 } | |
| 1676 | |
| 1677 void IdentifierExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1678 { | |
| 1679 if (hgs->hdrgen) | |
| 1680 buf->writestring(ident->toHChars2()); | |
| 1681 else | |
| 1682 buf->writestring(ident->toChars()); | |
| 1683 } | |
| 1684 | |
| 1685 Expression *IdentifierExp::toLvalue(Scope *sc, Expression *e) | |
| 1686 { | |
| 1687 #if 0 | |
| 1688 tym = tybasic(e1->ET->Tty); | |
| 1689 if (!(tyscalar(tym) || | |
| 1690 tym == TYstruct || | |
| 1691 tym == TYarray && e->Eoper == TOKaddr)) | |
| 1692 synerr(EM_lvalue); // lvalue expected | |
| 1693 #endif | |
| 1694 return this; | |
| 1695 } | |
| 1696 | |
| 1697 /******************************** DollarExp **************************/ | |
| 1698 | |
| 1699 DollarExp::DollarExp(Loc loc) | |
| 1700 : IdentifierExp(loc, Id::dollar) | |
| 1701 { | |
| 1702 } | |
| 1703 | |
| 1704 /******************************** DsymbolExp **************************/ | |
| 1705 | |
| 1706 DsymbolExp::DsymbolExp(Loc loc, Dsymbol *s) | |
| 1707 : Expression(loc, TOKdsymbol, sizeof(DsymbolExp)) | |
| 1708 { | |
| 1709 this->s = s; | |
| 1710 } | |
| 1711 | |
| 1712 Expression *DsymbolExp::semantic(Scope *sc) | |
| 1713 { | |
| 1714 #if LOGSEMANTIC | |
| 1715 printf("DsymbolExp::semantic('%s')\n", s->toChars()); | |
| 1716 #endif | |
| 1717 | |
| 1718 Lagain: | |
| 1719 EnumMember *em; | |
| 1720 Expression *e; | |
| 1721 VarDeclaration *v; | |
| 1722 FuncDeclaration *f; | |
| 1723 FuncLiteralDeclaration *fld; | |
| 1724 Declaration *d; | |
| 1725 ClassDeclaration *cd; | |
| 1726 ClassDeclaration *thiscd = NULL; | |
| 1727 Import *imp; | |
| 1728 Package *pkg; | |
| 1729 Type *t; | |
| 1730 | |
| 1731 //printf("DsymbolExp:: %p '%s' is a symbol\n", this, toChars()); | |
| 1732 //printf("s = '%s', s->kind = '%s'\n", s->toChars(), s->kind()); | |
| 1733 if (type) | |
| 1734 return this; | |
| 1735 if (!s->isFuncDeclaration()) // functions are checked after overloading | |
| 1736 checkDeprecated(sc, s); | |
| 1737 s = s->toAlias(); | |
| 1738 //printf("s = '%s', s->kind = '%s', s->needThis() = %p\n", s->toChars(), s->kind(), s->needThis()); | |
| 1739 if (!s->isFuncDeclaration()) | |
| 1740 checkDeprecated(sc, s); | |
| 1741 | |
| 1742 if (sc->func) | |
| 1743 thiscd = sc->func->parent->isClassDeclaration(); | |
| 1744 | |
| 1745 // BUG: This should happen after overload resolution for functions, not before | |
| 1746 if (s->needThis()) | |
| 1747 { | |
| 1748 if (hasThis(sc) /*&& !s->isFuncDeclaration()*/) | |
| 1749 { | |
| 1750 // Supply an implicit 'this', as in | |
| 1751 // this.ident | |
| 1752 | |
| 1753 DotVarExp *de; | |
| 1754 | |
| 1755 de = new DotVarExp(loc, new ThisExp(loc), s->isDeclaration()); | |
| 1756 return de->semantic(sc); | |
| 1757 } | |
| 1758 } | |
| 1759 | |
| 1760 em = s->isEnumMember(); | |
| 1761 if (em) | |
| 1762 { | |
| 1763 e = em->value; | |
| 1764 e = e->semantic(sc); | |
| 1765 return e; | |
| 1766 } | |
| 1767 v = s->isVarDeclaration(); | |
| 1768 if (v) | |
| 1769 { | |
| 1770 //printf("Identifier '%s' is a variable, type '%s'\n", toChars(), v->type->toChars()); | |
| 1771 if (!type) | |
| 1772 { type = v->type; | |
| 1773 if (!v->type) | |
| 1774 { error("forward reference of %s", v->toChars()); | |
| 1775 type = Type::terror; | |
| 1776 } | |
| 1777 } | |
| 1778 if (v->isConst() && type->toBasetype()->ty != Tsarray) | |
| 1779 { | |
| 1780 if (v->init) | |
| 1781 { | |
| 1782 if (v->inuse) | |
| 1783 { | |
| 1784 error("circular reference to '%s'", v->toChars()); | |
| 1785 type = Type::tint32; | |
| 1786 return this; | |
| 1787 } | |
| 1788 ExpInitializer *ei = v->init->isExpInitializer(); | |
| 1789 if (ei) | |
| 1790 { | |
| 1791 e = ei->exp->copy(); // make copy so we can change loc | |
| 1792 if (e->op == TOKstring || !e->type) | |
| 1793 e = e->semantic(sc); | |
| 1794 e = e->implicitCastTo(sc, type); | |
| 1795 e->loc = loc; | |
| 1796 return e; | |
| 1797 } | |
| 1798 } | |
| 1799 else | |
| 1800 { | |
| 1801 e = type->defaultInit(); | |
| 1802 e->loc = loc; | |
| 1803 return e; | |
| 1804 } | |
| 1805 } | |
| 1806 e = new VarExp(loc, v); | |
| 1807 e->type = type; | |
| 1808 e = e->semantic(sc); | |
| 1809 return e->deref(); | |
| 1810 } | |
| 1811 fld = s->isFuncLiteralDeclaration(); | |
| 1812 if (fld) | |
| 1813 { //printf("'%s' is a function literal\n", fld->toChars()); | |
| 1814 e = new FuncExp(loc, fld); | |
| 1815 return e->semantic(sc); | |
| 1816 } | |
| 1817 f = s->isFuncDeclaration(); | |
| 1818 if (f) | |
| 1819 { //printf("'%s' is a function\n", f->toChars()); | |
| 1820 return new VarExp(loc, f); | |
| 1821 } | |
| 1822 cd = s->isClassDeclaration(); | |
| 1823 if (cd && thiscd && cd->isBaseOf(thiscd, NULL) && sc->func->needThis()) | |
| 1824 { | |
| 1825 // We need to add an implicit 'this' if cd is this class or a base class. | |
| 1826 DotTypeExp *dte; | |
| 1827 | |
| 1828 dte = new DotTypeExp(loc, new ThisExp(loc), s); | |
| 1829 return dte->semantic(sc); | |
| 1830 } | |
| 1831 imp = s->isImport(); | |
| 1832 if (imp) | |
| 1833 { | |
| 1834 ScopeExp *ie; | |
| 1835 | |
| 1836 ie = new ScopeExp(loc, imp->pkg); | |
| 1837 return ie->semantic(sc); | |
| 1838 } | |
| 1839 pkg = s->isPackage(); | |
| 1840 if (pkg) | |
| 1841 { | |
| 1842 ScopeExp *ie; | |
| 1843 | |
| 1844 ie = new ScopeExp(loc, pkg); | |
| 1845 return ie->semantic(sc); | |
| 1846 } | |
| 1847 Module *mod = s->isModule(); | |
| 1848 if (mod) | |
| 1849 { | |
| 1850 ScopeExp *ie; | |
| 1851 | |
| 1852 ie = new ScopeExp(loc, mod); | |
| 1853 return ie->semantic(sc); | |
| 1854 } | |
| 1855 | |
| 1856 t = s->getType(); | |
| 1857 if (t) | |
| 1858 { | |
| 1859 return new TypeExp(loc, t); | |
| 1860 } | |
| 1861 | |
| 1862 TupleDeclaration *tup = s->isTupleDeclaration(); | |
| 1863 if (tup) | |
| 1864 { | |
| 1865 e = new TupleExp(loc, tup); | |
| 1866 e = e->semantic(sc); | |
| 1867 return e; | |
| 1868 } | |
| 1869 | |
| 1870 TemplateInstance *ti = s->isTemplateInstance(); | |
| 1871 if (ti && !global.errors) | |
| 1872 { if (!ti->semanticdone) | |
| 1873 ti->semantic(sc); | |
| 1874 s = ti->inst->toAlias(); | |
| 1875 if (!s->isTemplateInstance()) | |
| 1876 goto Lagain; | |
| 1877 e = new ScopeExp(loc, ti); | |
| 1878 e = e->semantic(sc); | |
| 1879 return e; | |
| 1880 } | |
| 1881 | |
| 1882 TemplateDeclaration *td = s->isTemplateDeclaration(); | |
| 1883 if (td) | |
| 1884 { | |
| 1885 e = new TemplateExp(loc, td); | |
| 1886 e = e->semantic(sc); | |
| 1887 return e; | |
| 1888 } | |
| 1889 | |
| 1890 Lerr: | |
| 1891 error("%s '%s' is not a variable", s->kind(), s->toChars()); | |
| 1892 type = Type::terror; | |
| 1893 return this; | |
| 1894 } | |
| 1895 | |
| 1896 char *DsymbolExp::toChars() | |
| 1897 { | |
| 1898 return s->toChars(); | |
| 1899 } | |
| 1900 | |
| 1901 void DsymbolExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1902 { | |
| 1903 buf->writestring(s->toChars()); | |
| 1904 } | |
| 1905 | |
| 1906 Expression *DsymbolExp::toLvalue(Scope *sc, Expression *e) | |
| 1907 { | |
| 1908 #if 0 | |
| 1909 tym = tybasic(e1->ET->Tty); | |
| 1910 if (!(tyscalar(tym) || | |
| 1911 tym == TYstruct || | |
| 1912 tym == TYarray && e->Eoper == TOKaddr)) | |
| 1913 synerr(EM_lvalue); // lvalue expected | |
| 1914 #endif | |
| 1915 return this; | |
| 1916 } | |
| 1917 | |
| 1918 /******************************** ThisExp **************************/ | |
| 1919 | |
| 1920 ThisExp::ThisExp(Loc loc) | |
| 1921 : Expression(loc, TOKthis, sizeof(ThisExp)) | |
| 1922 { | |
| 1923 var = NULL; | |
| 1924 } | |
| 1925 | |
| 1926 Expression *ThisExp::semantic(Scope *sc) | |
| 1927 { FuncDeclaration *fd; | |
| 1928 FuncDeclaration *fdthis; | |
| 1929 int nested = 0; | |
| 1930 | |
| 1931 #if LOGSEMANTIC | |
| 1932 printf("ThisExp::semantic()\n"); | |
| 1933 #endif | |
| 1934 if (type) | |
| 1935 { //assert(global.errors || var); | |
| 1936 return this; | |
| 1937 } | |
| 1938 | |
| 1939 /* Special case for typeof(this) and typeof(super) since both | |
| 1940 * should work even if they are not inside a non-static member function | |
| 1941 */ | |
| 1942 if (sc->intypeof) | |
| 1943 { | |
| 1944 // Find enclosing struct or class | |
| 1945 for (Dsymbol *s = sc->parent; 1; s = s->parent) | |
| 1946 { | |
| 1947 ClassDeclaration *cd; | |
| 1948 StructDeclaration *sd; | |
| 1949 | |
| 1950 if (!s) | |
| 1951 { | |
| 1952 error("%s is not in a struct or class scope", toChars()); | |
| 1953 goto Lerr; | |
| 1954 } | |
| 1955 cd = s->isClassDeclaration(); | |
| 1956 if (cd) | |
| 1957 { | |
| 1958 type = cd->type; | |
| 1959 return this; | |
| 1960 } | |
| 1961 sd = s->isStructDeclaration(); | |
| 1962 if (sd) | |
| 1963 { | |
| 1964 type = sd->type->pointerTo(); | |
| 1965 return this; | |
| 1966 } | |
| 1967 } | |
| 1968 } | |
| 1969 | |
| 1970 fdthis = sc->parent->isFuncDeclaration(); | |
| 1971 fd = hasThis(sc); // fd is the uplevel function with the 'this' variable | |
| 1972 if (!fd) | |
| 1973 goto Lerr; | |
| 1974 | |
| 1975 assert(fd->vthis); | |
| 1976 var = fd->vthis; | |
| 1977 assert(var->parent); | |
| 1978 type = var->type; | |
| 1979 var->isVarDeclaration()->checkNestedReference(sc, loc); | |
| 1980 #if 0 | |
| 1981 if (fd != fdthis) // if nested | |
| 1982 { | |
| 1983 fdthis->getLevel(loc, fd); | |
| 1984 fd->vthis->nestedref = 1; | |
| 1985 fd->nestedFrameRef = 1; | |
| 1986 } | |
| 1987 #endif | |
| 1988 sc->callSuper |= CSXthis; | |
| 1989 return this; | |
| 1990 | |
| 1991 Lerr: | |
| 1992 error("'this' is only allowed in non-static member functions, not %s", sc->parent->toChars()); | |
| 1993 type = Type::tint32; | |
| 1994 return this; | |
| 1995 } | |
| 1996 | |
| 1997 int ThisExp::isBool(int result) | |
| 1998 { | |
| 1999 return result ? TRUE : FALSE; | |
| 2000 } | |
| 2001 | |
| 2002 void ThisExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2003 { | |
| 2004 buf->writestring("this"); | |
| 2005 } | |
| 2006 | |
| 2007 Expression *ThisExp::toLvalue(Scope *sc, Expression *e) | |
| 2008 { | |
| 2009 return this; | |
| 2010 } | |
| 2011 | |
| 2012 /******************************** SuperExp **************************/ | |
| 2013 | |
| 2014 SuperExp::SuperExp(Loc loc) | |
| 2015 : ThisExp(loc) | |
| 2016 { | |
| 2017 op = TOKsuper; | |
| 2018 } | |
| 2019 | |
| 2020 Expression *SuperExp::semantic(Scope *sc) | |
| 2021 { FuncDeclaration *fd; | |
| 2022 FuncDeclaration *fdthis; | |
| 2023 ClassDeclaration *cd; | |
| 2024 Dsymbol *s; | |
| 2025 | |
| 2026 #if LOGSEMANTIC | |
| 2027 printf("SuperExp::semantic('%s')\n", toChars()); | |
| 2028 #endif | |
| 2029 if (type) | |
| 2030 return this; | |
| 2031 | |
| 2032 /* Special case for typeof(this) and typeof(super) since both | |
| 2033 * should work even if they are not inside a non-static member function | |
| 2034 */ | |
| 2035 if (sc->intypeof) | |
| 2036 { | |
| 2037 // Find enclosing class | |
| 2038 for (Dsymbol *s = sc->parent; 1; s = s->parent) | |
| 2039 { | |
| 2040 ClassDeclaration *cd; | |
| 2041 | |
| 2042 if (!s) | |
| 2043 { | |
| 2044 error("%s is not in a class scope", toChars()); | |
| 2045 goto Lerr; | |
| 2046 } | |
| 2047 cd = s->isClassDeclaration(); | |
| 2048 if (cd) | |
| 2049 { | |
| 2050 cd = cd->baseClass; | |
| 2051 if (!cd) | |
| 2052 { error("class %s has no 'super'", s->toChars()); | |
| 2053 goto Lerr; | |
| 2054 } | |
| 2055 type = cd->type; | |
| 2056 return this; | |
| 2057 } | |
| 2058 } | |
| 2059 } | |
| 2060 | |
| 2061 fdthis = sc->parent->isFuncDeclaration(); | |
| 2062 fd = hasThis(sc); | |
| 2063 if (!fd) | |
| 2064 goto Lerr; | |
| 2065 assert(fd->vthis); | |
| 2066 var = fd->vthis; | |
| 2067 assert(var->parent); | |
| 2068 | |
| 2069 s = fd->toParent(); | |
| 2070 while (s && s->isTemplateInstance()) | |
| 2071 s = s->toParent(); | |
| 2072 assert(s); | |
| 2073 cd = s->isClassDeclaration(); | |
| 2074 //printf("parent is %s %s\n", fd->toParent()->kind(), fd->toParent()->toChars()); | |
| 2075 if (!cd) | |
| 2076 goto Lerr; | |
| 2077 if (!cd->baseClass) | |
| 2078 { | |
| 2079 error("no base class for %s", cd->toChars()); | |
| 2080 type = fd->vthis->type; | |
| 2081 } | |
| 2082 else | |
| 2083 { | |
| 2084 type = cd->baseClass->type; | |
| 2085 } | |
| 2086 | |
| 2087 var->isVarDeclaration()->checkNestedReference(sc, loc); | |
| 2088 #if 0 | |
| 2089 if (fd != fdthis) | |
| 2090 { | |
| 2091 fdthis->getLevel(loc, fd); | |
| 2092 fd->vthis->nestedref = 1; | |
| 2093 fd->nestedFrameRef = 1; | |
| 2094 } | |
| 2095 #endif | |
| 2096 | |
| 2097 sc->callSuper |= CSXsuper; | |
| 2098 return this; | |
| 2099 | |
| 2100 | |
| 2101 Lerr: | |
| 2102 error("'super' is only allowed in non-static class member functions"); | |
| 2103 type = Type::tint32; | |
| 2104 return this; | |
| 2105 } | |
| 2106 | |
| 2107 void SuperExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2108 { | |
| 2109 buf->writestring("super"); | |
| 2110 } | |
| 2111 | |
| 2112 | |
| 2113 /******************************** NullExp **************************/ | |
| 2114 | |
| 2115 NullExp::NullExp(Loc loc) | |
| 2116 : Expression(loc, TOKnull, sizeof(NullExp)) | |
| 2117 { | |
| 2118 committed = 0; | |
| 2119 } | |
| 2120 | |
| 2121 Expression *NullExp::semantic(Scope *sc) | |
| 2122 { | |
| 2123 #if LOGSEMANTIC | |
| 2124 printf("NullExp::semantic('%s')\n", toChars()); | |
| 2125 #endif | |
| 2126 // NULL is the same as (void *)0 | |
| 2127 if (!type) | |
| 2128 type = Type::tvoid->pointerTo(); | |
| 2129 return this; | |
| 2130 } | |
| 2131 | |
| 2132 int NullExp::isBool(int result) | |
| 2133 { | |
| 2134 return result ? FALSE : TRUE; | |
| 2135 } | |
| 2136 | |
| 2137 void NullExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2138 { | |
| 2139 buf->writestring("null"); | |
| 2140 } | |
| 2141 | |
| 2142 void NullExp::toMangleBuffer(OutBuffer *buf) | |
| 2143 { | |
| 2144 buf->writeByte('n'); | |
| 2145 } | |
| 2146 | |
| 2147 /******************************** StringExp **************************/ | |
| 2148 | |
| 2149 StringExp::StringExp(Loc loc, char *string) | |
| 2150 : Expression(loc, TOKstring, sizeof(StringExp)) | |
| 2151 { | |
| 2152 this->string = string; | |
| 2153 this->len = strlen(string); | |
| 2154 this->sz = 1; | |
| 2155 this->committed = 0; | |
| 2156 this->postfix = 0; | |
| 2157 } | |
| 2158 | |
| 2159 StringExp::StringExp(Loc loc, void *string, size_t len) | |
| 2160 : Expression(loc, TOKstring, sizeof(StringExp)) | |
| 2161 { | |
| 2162 this->string = string; | |
| 2163 this->len = len; | |
| 2164 this->sz = 1; | |
| 2165 this->committed = 0; | |
| 2166 this->postfix = 0; | |
| 2167 } | |
| 2168 | |
| 2169 StringExp::StringExp(Loc loc, void *string, size_t len, unsigned char postfix) | |
| 2170 : Expression(loc, TOKstring, sizeof(StringExp)) | |
| 2171 { | |
| 2172 this->string = string; | |
| 2173 this->len = len; | |
| 2174 this->sz = 1; | |
| 2175 this->committed = 0; | |
| 2176 this->postfix = postfix; | |
| 2177 } | |
| 2178 | |
| 2179 #if 0 | |
| 2180 Expression *StringExp::syntaxCopy() | |
| 2181 { | |
| 2182 printf("StringExp::syntaxCopy() %s\n", toChars()); | |
| 2183 return copy(); | |
| 2184 } | |
| 2185 #endif | |
| 2186 | |
| 2187 int StringExp::equals(Object *o) | |
| 2188 { | |
| 2189 //printf("StringExp::equals('%s')\n", o->toChars()); | |
| 2190 if (o && o->dyncast() == DYNCAST_EXPRESSION) | |
| 2191 { Expression *e = (Expression *)o; | |
| 2192 | |
| 2193 if (e->op == TOKstring) | |
| 2194 { | |
| 2195 return compare(o) == 0; | |
| 2196 } | |
| 2197 } | |
| 2198 return FALSE; | |
| 2199 } | |
| 2200 | |
| 2201 char *StringExp::toChars() | |
| 2202 { | |
| 2203 OutBuffer buf; | |
| 2204 HdrGenState hgs; | |
| 2205 char *p; | |
| 2206 | |
| 2207 memset(&hgs, 0, sizeof(hgs)); | |
| 2208 toCBuffer(&buf, &hgs); | |
| 2209 buf.writeByte(0); | |
| 2210 p = (char *)buf.data; | |
| 2211 buf.data = NULL; | |
| 2212 return p; | |
| 2213 } | |
| 2214 | |
| 2215 Expression *StringExp::semantic(Scope *sc) | |
| 2216 { | |
| 2217 #if LOGSEMANTIC | |
| 2218 printf("StringExp::semantic() %s\n", toChars()); | |
| 2219 #endif | |
| 2220 if (!type) | |
| 2221 { OutBuffer buffer; | |
| 2222 size_t newlen = 0; | |
| 2223 char *p; | |
| 2224 size_t u; | |
| 2225 unsigned c; | |
| 2226 | |
| 2227 switch (postfix) | |
| 2228 { | |
| 2229 case 'd': | |
| 2230 for (u = 0; u < len;) | |
| 2231 { | |
| 2232 p = utf_decodeChar((unsigned char *)string, len, &u, &c); | |
| 2233 if (p) | |
| 2234 { error("%s", p); | |
| 2235 break; | |
| 2236 } | |
| 2237 else | |
| 2238 { buffer.write4(c); | |
| 2239 newlen++; | |
| 2240 } | |
| 2241 } | |
| 2242 buffer.write4(0); | |
| 2243 string = buffer.extractData(); | |
| 2244 len = newlen; | |
| 2245 sz = 4; | |
| 2246 type = new TypeSArray(Type::tdchar, new IntegerExp(loc, len, Type::tindex)); | |
| 2247 committed = 1; | |
| 2248 break; | |
| 2249 | |
| 2250 case 'w': | |
| 2251 for (u = 0; u < len;) | |
| 2252 { | |
| 2253 p = utf_decodeChar((unsigned char *)string, len, &u, &c); | |
| 2254 if (p) | |
| 2255 { error("%s", p); | |
| 2256 break; | |
| 2257 } | |
| 2258 else | |
| 2259 { buffer.writeUTF16(c); | |
| 2260 newlen++; | |
| 2261 if (c >= 0x10000) | |
| 2262 newlen++; | |
| 2263 } | |
| 2264 } | |
| 2265 buffer.writeUTF16(0); | |
| 2266 string = buffer.extractData(); | |
| 2267 len = newlen; | |
| 2268 sz = 2; | |
| 2269 type = new TypeSArray(Type::twchar, new IntegerExp(loc, len, Type::tindex)); | |
| 2270 committed = 1; | |
| 2271 break; | |
| 2272 | |
| 2273 case 'c': | |
| 2274 committed = 1; | |
| 2275 default: | |
| 2276 type = new TypeSArray(Type::tchar, new IntegerExp(loc, len, Type::tindex)); | |
| 2277 break; | |
| 2278 } | |
| 2279 type = type->semantic(loc, sc); | |
| 2280 } | |
| 2281 return this; | |
| 2282 } | |
| 2283 | |
| 2284 /**************************************** | |
| 2285 * Convert string to char[]. | |
| 2286 */ | |
| 2287 | |
| 2288 StringExp *StringExp::toUTF8(Scope *sc) | |
| 2289 { | |
| 2290 if (sz != 1) | |
| 2291 { // Convert to UTF-8 string | |
| 2292 committed = 0; | |
| 2293 Expression *e = castTo(sc, Type::tchar->arrayOf()); | |
| 2294 e = e->optimize(WANTvalue); | |
| 2295 assert(e->op == TOKstring); | |
| 2296 StringExp *se = (StringExp *)e; | |
| 2297 assert(se->sz == 1); | |
| 2298 return se; | |
| 2299 } | |
| 2300 return this; | |
| 2301 } | |
| 2302 | |
| 2303 int StringExp::compare(Object *obj) | |
| 2304 { | |
| 2305 // Used to sort case statement expressions so we can do an efficient lookup | |
| 2306 StringExp *se2 = (StringExp *)(obj); | |
| 2307 | |
| 2308 // This is a kludge so isExpression() in template.c will return 5 | |
| 2309 // for StringExp's. | |
| 2310 if (!se2) | |
| 2311 return 5; | |
| 2312 | |
| 2313 assert(se2->op == TOKstring); | |
| 2314 | |
| 2315 int len1 = len; | |
| 2316 int len2 = se2->len; | |
| 2317 | |
| 2318 if (len1 == len2) | |
| 2319 { | |
| 2320 switch (sz) | |
| 2321 { | |
| 2322 case 1: | |
| 2323 return strcmp((char *)string, (char *)se2->string); | |
| 2324 | |
| 2325 case 2: | |
| 2326 { unsigned u; | |
| 2327 d_wchar *s1 = (d_wchar *)string; | |
| 2328 d_wchar *s2 = (d_wchar *)se2->string; | |
| 2329 | |
| 2330 for (u = 0; u < len; u++) | |
| 2331 { | |
| 2332 if (s1[u] != s2[u]) | |
| 2333 return s1[u] - s2[u]; | |
| 2334 } | |
| 2335 } | |
| 2336 | |
| 2337 case 4: | |
| 2338 { unsigned u; | |
| 2339 d_dchar *s1 = (d_dchar *)string; | |
| 2340 d_dchar *s2 = (d_dchar *)se2->string; | |
| 2341 | |
| 2342 for (u = 0; u < len; u++) | |
| 2343 { | |
| 2344 if (s1[u] != s2[u]) | |
| 2345 return s1[u] - s2[u]; | |
| 2346 } | |
| 2347 } | |
| 2348 break; | |
| 2349 | |
| 2350 default: | |
| 2351 assert(0); | |
| 2352 } | |
| 2353 } | |
| 2354 return len1 - len2; | |
| 2355 } | |
| 2356 | |
| 2357 int StringExp::isBool(int result) | |
| 2358 { | |
| 2359 return result ? TRUE : FALSE; | |
| 2360 } | |
| 2361 | |
|
35
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2362 unsigned StringExp::charAt(size_t i) |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2363 { unsigned value; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2364 |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2365 switch (sz) |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2366 { |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2367 case 1: |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2368 value = ((unsigned char *)string)[i]; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2369 break; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2370 |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2371 case 2: |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2372 value = ((unsigned short *)string)[i]; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2373 break; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2374 |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2375 case 4: |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2376 value = ((unsigned int *)string)[i]; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2377 break; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2378 |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2379 default: |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2380 assert(0); |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2381 break; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2382 } |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2383 return value; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2384 } |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2385 |
| 1 | 2386 void StringExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 2387 { | |
| 2388 buf->writeByte('"'); | |
| 2389 for (size_t i = 0; i < len; i++) | |
|
35
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2390 { unsigned c = charAt(i); |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2391 |
| 1 | 2392 switch (c) |
| 2393 { | |
| 2394 case '"': | |
| 2395 case '\\': | |
| 2396 if (!hgs->console) | |
| 2397 buf->writeByte('\\'); | |
| 2398 default: | |
| 2399 if (c <= 0xFF) | |
| 2400 { if (c <= 0x7F && (isprint(c) || hgs->console)) | |
| 2401 buf->writeByte(c); | |
| 2402 else | |
| 2403 buf->printf("\\x%02x", c); | |
| 2404 } | |
| 2405 else if (c <= 0xFFFF) | |
| 2406 buf->printf("\\x%02x\\x%02x", c & 0xFF, c >> 8); | |
| 2407 else | |
| 2408 buf->printf("\\x%02x\\x%02x\\x%02x\\x%02x", | |
| 2409 c & 0xFF, (c >> 8) & 0xFF, (c >> 16) & 0xFF, c >> 24); | |
| 2410 break; | |
| 2411 } | |
| 2412 } | |
| 2413 buf->writeByte('"'); | |
| 2414 if (postfix) | |
| 2415 buf->writeByte(postfix); | |
| 2416 } | |
| 2417 | |
| 2418 void StringExp::toMangleBuffer(OutBuffer *buf) | |
| 2419 { char m; | |
| 2420 OutBuffer tmp; | |
| 2421 char *p; | |
| 2422 unsigned c; | |
| 2423 size_t u; | |
| 2424 unsigned char *q; | |
| 2425 unsigned qlen; | |
| 2426 | |
| 2427 /* Write string in UTF-8 format | |
| 2428 */ | |
| 2429 switch (sz) | |
| 2430 { case 1: | |
| 2431 m = 'a'; | |
| 2432 q = (unsigned char *)string; | |
| 2433 qlen = len; | |
| 2434 break; | |
| 2435 case 2: | |
| 2436 m = 'w'; | |
| 2437 for (u = 0; u < len; ) | |
| 2438 { | |
| 2439 p = utf_decodeWchar((unsigned short *)string, len, &u, &c); | |
| 2440 if (p) | |
| 2441 error("%s", p); | |
| 2442 else | |
| 2443 tmp.writeUTF8(c); | |
| 2444 } | |
| 2445 q = tmp.data; | |
| 2446 qlen = tmp.offset; | |
| 2447 break; | |
| 2448 case 4: | |
| 2449 m = 'd'; | |
| 2450 for (u = 0; u < len; u++) | |
| 2451 { | |
| 2452 c = ((unsigned *)string)[u]; | |
| 2453 if (!utf_isValidDchar(c)) | |
| 2454 error("invalid UCS-32 char \\U%08x", c); | |
| 2455 else | |
| 2456 tmp.writeUTF8(c); | |
| 2457 } | |
| 2458 q = tmp.data; | |
| 2459 qlen = tmp.offset; | |
| 2460 break; | |
| 2461 default: | |
| 2462 assert(0); | |
| 2463 } | |
| 2464 buf->writeByte(m); | |
| 2465 buf->printf("%d_", qlen); | |
| 2466 for (size_t i = 0; i < qlen; i++) | |
| 2467 buf->printf("%02x", q[i]); | |
| 2468 } | |
| 2469 | |
| 2470 /************************ ArrayLiteralExp ************************************/ | |
| 2471 | |
| 2472 // [ e1, e2, e3, ... ] | |
| 2473 | |
| 2474 ArrayLiteralExp::ArrayLiteralExp(Loc loc, Expressions *elements) | |
| 2475 : Expression(loc, TOKarrayliteral, sizeof(ArrayLiteralExp)) | |
| 2476 { | |
| 2477 this->elements = elements; | |
| 2478 } | |
| 2479 | |
| 2480 ArrayLiteralExp::ArrayLiteralExp(Loc loc, Expression *e) | |
| 2481 : Expression(loc, TOKarrayliteral, sizeof(ArrayLiteralExp)) | |
| 2482 { | |
| 2483 elements = new Expressions; | |
| 2484 elements->push(e); | |
| 2485 } | |
| 2486 | |
| 2487 Expression *ArrayLiteralExp::syntaxCopy() | |
| 2488 { | |
| 2489 return new ArrayLiteralExp(loc, arraySyntaxCopy(elements)); | |
| 2490 } | |
| 2491 | |
| 2492 Expression *ArrayLiteralExp::semantic(Scope *sc) | |
| 2493 { Expression *e; | |
| 2494 Type *t0 = NULL; | |
| 2495 | |
| 2496 #if LOGSEMANTIC | |
| 2497 printf("ArrayLiteralExp::semantic('%s')\n", toChars()); | |
| 2498 #endif | |
| 2499 | |
| 2500 // Run semantic() on each element | |
| 2501 for (int i = 0; i < elements->dim; i++) | |
| 2502 { e = (Expression *)elements->data[i]; | |
| 2503 e = e->semantic(sc); | |
| 2504 elements->data[i] = (void *)e; | |
| 2505 } | |
| 2506 expandTuples(elements); | |
| 2507 for (int i = 0; i < elements->dim; i++) | |
| 2508 { e = (Expression *)elements->data[i]; | |
| 2509 | |
| 2510 if (!e->type) | |
| 2511 error("%s has no value", e->toChars()); | |
| 2512 e = resolveProperties(sc, e); | |
| 2513 | |
| 2514 unsigned char committed = 1; | |
| 2515 if (e->op == TOKstring) | |
| 2516 committed = ((StringExp *)e)->committed; | |
| 2517 | |
| 2518 if (!t0) | |
| 2519 { t0 = e->type; | |
| 2520 // Convert any static arrays to dynamic arrays | |
| 2521 if (t0->ty == Tsarray) | |
| 2522 { | |
| 2523 t0 = t0->next->arrayOf(); | |
| 2524 e = e->implicitCastTo(sc, t0); | |
| 2525 } | |
| 2526 } | |
| 2527 else | |
| 2528 e = e->implicitCastTo(sc, t0); | |
| 2529 if (!committed && e->op == TOKstring) | |
| 2530 { StringExp *se = (StringExp *)e; | |
| 2531 se->committed = 0; | |
| 2532 } | |
| 2533 elements->data[i] = (void *)e; | |
| 2534 } | |
| 2535 | |
| 2536 if (!t0) | |
| 2537 t0 = Type::tvoid; | |
| 2538 type = new TypeSArray(t0, new IntegerExp(elements->dim)); | |
| 2539 type = type->semantic(loc, sc); | |
| 2540 return this; | |
| 2541 } | |
| 2542 | |
| 2543 int ArrayLiteralExp::checkSideEffect(int flag) | |
| 2544 { int f = 0; | |
| 2545 | |
| 2546 for (size_t i = 0; i < elements->dim; i++) | |
| 2547 { Expression *e = (Expression *)elements->data[i]; | |
| 2548 | |
| 2549 f |= e->checkSideEffect(2); | |
| 2550 } | |
| 2551 if (flag == 0 && f == 0) | |
| 2552 Expression::checkSideEffect(0); | |
| 2553 return f; | |
| 2554 } | |
| 2555 | |
| 2556 int ArrayLiteralExp::isBool(int result) | |
| 2557 { | |
| 2558 size_t dim = elements ? elements->dim : 0; | |
| 2559 return result ? (dim != 0) : (dim == 0); | |
| 2560 } | |
| 2561 | |
| 2562 void ArrayLiteralExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2563 { | |
| 2564 buf->writeByte('['); | |
| 2565 argsToCBuffer(buf, elements, hgs); | |
| 2566 buf->writeByte(']'); | |
| 2567 } | |
| 2568 | |
| 2569 void ArrayLiteralExp::toMangleBuffer(OutBuffer *buf) | |
| 2570 { | |
| 2571 size_t dim = elements ? elements->dim : 0; | |
| 2572 buf->printf("A%u", dim); | |
| 2573 for (size_t i = 0; i < dim; i++) | |
| 2574 { Expression *e = (Expression *)elements->data[i]; | |
| 2575 e->toMangleBuffer(buf); | |
| 2576 } | |
| 2577 } | |
| 2578 | |
| 2579 /************************ AssocArrayLiteralExp ************************************/ | |
| 2580 | |
| 2581 // [ key0 : value0, key1 : value1, ... ] | |
| 2582 | |
| 2583 AssocArrayLiteralExp::AssocArrayLiteralExp(Loc loc, | |
| 2584 Expressions *keys, Expressions *values) | |
| 2585 : Expression(loc, TOKassocarrayliteral, sizeof(AssocArrayLiteralExp)) | |
| 2586 { | |
| 2587 assert(keys->dim == values->dim); | |
| 2588 this->keys = keys; | |
| 2589 this->values = values; | |
| 2590 } | |
| 2591 | |
| 2592 Expression *AssocArrayLiteralExp::syntaxCopy() | |
| 2593 { | |
| 2594 return new AssocArrayLiteralExp(loc, | |
| 2595 arraySyntaxCopy(keys), arraySyntaxCopy(values)); | |
| 2596 } | |
| 2597 | |
| 2598 Expression *AssocArrayLiteralExp::semantic(Scope *sc) | |
| 2599 { Expression *e; | |
| 2600 Type *tkey = NULL; | |
| 2601 Type *tvalue = NULL; | |
| 2602 | |
| 2603 #if LOGSEMANTIC | |
| 2604 printf("AssocArrayLiteralExp::semantic('%s')\n", toChars()); | |
| 2605 #endif | |
| 2606 | |
| 2607 // Run semantic() on each element | |
| 2608 for (size_t i = 0; i < keys->dim; i++) | |
| 2609 { Expression *key = (Expression *)keys->data[i]; | |
| 2610 Expression *value = (Expression *)values->data[i]; | |
| 2611 | |
| 2612 key = key->semantic(sc); | |
| 2613 value = value->semantic(sc); | |
| 2614 | |
| 2615 keys->data[i] = (void *)key; | |
| 2616 values->data[i] = (void *)value; | |
| 2617 } | |
| 2618 expandTuples(keys); | |
| 2619 expandTuples(values); | |
| 2620 if (keys->dim != values->dim) | |
| 2621 { | |
| 2622 error("number of keys is %u, must match number of values %u", keys->dim, values->dim); | |
| 2623 keys->setDim(0); | |
| 2624 values->setDim(0); | |
| 2625 } | |
| 2626 for (size_t i = 0; i < keys->dim; i++) | |
| 2627 { Expression *key = (Expression *)keys->data[i]; | |
| 2628 Expression *value = (Expression *)values->data[i]; | |
| 2629 | |
| 2630 if (!key->type) | |
| 2631 error("%s has no value", key->toChars()); | |
| 2632 if (!value->type) | |
| 2633 error("%s has no value", value->toChars()); | |
| 2634 key = resolveProperties(sc, key); | |
| 2635 value = resolveProperties(sc, value); | |
| 2636 | |
| 2637 if (!tkey) | |
| 2638 tkey = key->type; | |
| 2639 else | |
| 2640 key = key->implicitCastTo(sc, tkey); | |
| 2641 keys->data[i] = (void *)key; | |
| 2642 | |
| 2643 if (!tvalue) | |
| 2644 tvalue = value->type; | |
| 2645 else | |
| 2646 value = value->implicitCastTo(sc, tvalue); | |
| 2647 values->data[i] = (void *)value; | |
| 2648 } | |
| 2649 | |
| 2650 if (!tkey) | |
| 2651 tkey = Type::tvoid; | |
| 2652 if (!tvalue) | |
| 2653 tvalue = Type::tvoid; | |
| 2654 type = new TypeAArray(tvalue, tkey); | |
| 2655 type = type->semantic(loc, sc); | |
| 2656 return this; | |
| 2657 } | |
| 2658 | |
| 2659 int AssocArrayLiteralExp::checkSideEffect(int flag) | |
| 2660 { int f = 0; | |
| 2661 | |
| 2662 for (size_t i = 0; i < keys->dim; i++) | |
| 2663 { Expression *key = (Expression *)keys->data[i]; | |
| 2664 Expression *value = (Expression *)values->data[i]; | |
| 2665 | |
| 2666 f |= key->checkSideEffect(2); | |
| 2667 f |= value->checkSideEffect(2); | |
| 2668 } | |
| 2669 if (flag == 0 && f == 0) | |
| 2670 Expression::checkSideEffect(0); | |
| 2671 return f; | |
| 2672 } | |
| 2673 | |
| 2674 int AssocArrayLiteralExp::isBool(int result) | |
| 2675 { | |
| 2676 size_t dim = keys->dim; | |
| 2677 return result ? (dim != 0) : (dim == 0); | |
| 2678 } | |
| 2679 | |
| 2680 void AssocArrayLiteralExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2681 { | |
| 2682 buf->writeByte('['); | |
| 2683 for (size_t i = 0; i < keys->dim; i++) | |
| 2684 { Expression *key = (Expression *)keys->data[i]; | |
| 2685 Expression *value = (Expression *)values->data[i]; | |
| 2686 | |
| 2687 if (i) | |
| 2688 buf->writeByte(','); | |
| 2689 expToCBuffer(buf, hgs, key, PREC_assign); | |
| 2690 buf->writeByte(':'); | |
| 2691 expToCBuffer(buf, hgs, value, PREC_assign); | |
| 2692 } | |
| 2693 buf->writeByte(']'); | |
| 2694 } | |
| 2695 | |
| 2696 void AssocArrayLiteralExp::toMangleBuffer(OutBuffer *buf) | |
| 2697 { | |
| 2698 size_t dim = keys->dim; | |
| 2699 buf->printf("A%u", dim); | |
| 2700 for (size_t i = 0; i < dim; i++) | |
| 2701 { Expression *key = (Expression *)keys->data[i]; | |
| 2702 Expression *value = (Expression *)values->data[i]; | |
| 2703 | |
| 2704 key->toMangleBuffer(buf); | |
| 2705 value->toMangleBuffer(buf); | |
| 2706 } | |
| 2707 } | |
| 2708 | |
| 2709 /************************ StructLiteralExp ************************************/ | |
| 2710 | |
| 2711 // sd( e1, e2, e3, ... ) | |
| 2712 | |
| 2713 StructLiteralExp::StructLiteralExp(Loc loc, StructDeclaration *sd, Expressions *elements) | |
| 2714 : Expression(loc, TOKstructliteral, sizeof(StructLiteralExp)) | |
| 2715 { | |
| 2716 this->sd = sd; | |
| 2717 this->elements = elements; | |
| 2718 this->sym = NULL; | |
| 2719 this->soffset = 0; | |
| 2720 this->fillHoles = 1; | |
| 2721 } | |
| 2722 | |
| 2723 Expression *StructLiteralExp::syntaxCopy() | |
| 2724 { | |
| 2725 return new StructLiteralExp(loc, sd, arraySyntaxCopy(elements)); | |
| 2726 } | |
| 2727 | |
| 2728 Expression *StructLiteralExp::semantic(Scope *sc) | |
| 2729 { Expression *e; | |
| 2730 | |
| 2731 #if LOGSEMANTIC | |
| 2732 printf("StructLiteralExp::semantic('%s')\n", toChars()); | |
| 2733 #endif | |
| 2734 | |
| 2735 // Run semantic() on each element | |
| 2736 for (size_t i = 0; i < elements->dim; i++) | |
| 2737 { e = (Expression *)elements->data[i]; | |
| 2738 if (!e) | |
| 2739 continue; | |
| 2740 e = e->semantic(sc); | |
| 2741 elements->data[i] = (void *)e; | |
| 2742 } | |
| 2743 expandTuples(elements); | |
| 2744 size_t offset = 0; | |
| 2745 for (size_t i = 0; i < elements->dim; i++) | |
| 2746 { e = (Expression *)elements->data[i]; | |
| 2747 if (!e) | |
| 2748 continue; | |
| 2749 | |
| 2750 if (!e->type) | |
| 2751 error("%s has no value", e->toChars()); | |
| 2752 e = resolveProperties(sc, e); | |
| 2753 if (i >= sd->fields.dim) | |
| 2754 { error("more initializers than fields of %s", sd->toChars()); | |
| 2755 break; | |
| 2756 } | |
| 2757 Dsymbol *s = (Dsymbol *)sd->fields.data[i]; | |
| 2758 VarDeclaration *v = s->isVarDeclaration(); | |
| 2759 assert(v); | |
| 2760 if (v->offset < offset) | |
| 2761 error("overlapping initialization for %s", v->toChars()); | |
| 2762 offset = v->offset + v->type->size(); | |
| 2763 | |
| 2764 Type *telem = v->type; | |
| 2765 while (!e->implicitConvTo(telem) && telem->toBasetype()->ty == Tsarray) | |
| 2766 { /* Static array initialization, as in: | |
| 2767 * T[3][5] = e; | |
| 2768 */ | |
| 2769 telem = telem->toBasetype()->nextOf(); | |
| 2770 } | |
| 2771 | |
| 2772 e = e->implicitCastTo(sc, telem); | |
| 2773 | |
| 2774 elements->data[i] = (void *)e; | |
| 2775 } | |
| 2776 | |
| 2777 /* Fill out remainder of elements[] with default initializers for fields[] | |
| 2778 */ | |
| 2779 for (size_t i = elements->dim; i < sd->fields.dim; i++) | |
| 2780 { Dsymbol *s = (Dsymbol *)sd->fields.data[i]; | |
| 2781 VarDeclaration *v = s->isVarDeclaration(); | |
| 2782 assert(v); | |
| 2783 | |
| 2784 if (v->offset < offset) | |
| 2785 { e = NULL; | |
| 2786 sd->hasUnions = 1; | |
| 2787 } | |
| 2788 else | |
| 2789 { | |
| 2790 if (v->init) | |
| 2791 { e = v->init->toExpression(); | |
| 2792 if (!e) | |
| 2793 error("cannot make expression out of initializer for %s", v->toChars()); | |
| 2794 } | |
| 2795 else | |
| 2796 { e = v->type->defaultInit(); | |
| 2797 e->loc = loc; | |
| 2798 } | |
| 2799 offset = v->offset + v->type->size(); | |
| 2800 } | |
| 2801 elements->push(e); | |
| 2802 } | |
| 2803 | |
| 2804 type = sd->type; | |
| 2805 return this; | |
| 2806 } | |
| 2807 | |
| 2808 /************************************** | |
| 2809 * Gets expression at offset of type. | |
| 2810 * Returns NULL if not found. | |
| 2811 */ | |
| 2812 | |
| 2813 Expression *StructLiteralExp::getField(Type *type, unsigned offset) | |
| 2814 { Expression *e = NULL; | |
| 2815 int i = getFieldIndex(type, offset); | |
| 2816 | |
| 2817 if (i != -1) | |
| 2818 { e = (Expression *)elements->data[i]; | |
| 2819 if (e) | |
| 2820 { | |
| 2821 e = e->copy(); | |
| 2822 e->type = type; | |
| 2823 } | |
| 2824 } | |
| 2825 return e; | |
| 2826 } | |
| 2827 | |
| 2828 /************************************ | |
| 2829 * Get index of field. | |
| 2830 * Returns -1 if not found. | |
| 2831 */ | |
| 2832 | |
| 2833 int StructLiteralExp::getFieldIndex(Type *type, unsigned offset) | |
| 2834 { | |
| 2835 /* Find which field offset is by looking at the field offsets | |
| 2836 */ | |
| 2837 for (size_t i = 0; i < sd->fields.dim; i++) | |
| 2838 { | |
| 2839 Dsymbol *s = (Dsymbol *)sd->fields.data[i]; | |
| 2840 VarDeclaration *v = s->isVarDeclaration(); | |
| 2841 assert(v); | |
| 2842 | |
| 2843 if (offset == v->offset && | |
| 2844 type->size() == v->type->size()) | |
| 2845 { Expression *e = (Expression *)elements->data[i]; | |
| 2846 if (e) | |
| 2847 { | |
| 2848 return i; | |
| 2849 } | |
| 2850 break; | |
| 2851 } | |
| 2852 } | |
| 2853 return -1; | |
| 2854 } | |
| 2855 | |
| 2856 | |
| 2857 Expression *StructLiteralExp::toLvalue(Scope *sc, Expression *e) | |
| 2858 { | |
| 2859 return this; | |
| 2860 } | |
| 2861 | |
| 2862 | |
| 2863 int StructLiteralExp::checkSideEffect(int flag) | |
| 2864 { int f = 0; | |
| 2865 | |
| 2866 for (size_t i = 0; i < elements->dim; i++) | |
| 2867 { Expression *e = (Expression *)elements->data[i]; | |
| 2868 if (!e) | |
| 2869 continue; | |
| 2870 | |
| 2871 f |= e->checkSideEffect(2); | |
| 2872 } | |
| 2873 if (flag == 0 && f == 0) | |
| 2874 Expression::checkSideEffect(0); | |
| 2875 return f; | |
| 2876 } | |
| 2877 | |
| 2878 void StructLiteralExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2879 { | |
| 2880 buf->writestring(sd->toChars()); | |
| 2881 buf->writeByte('('); | |
| 2882 argsToCBuffer(buf, elements, hgs); | |
| 2883 buf->writeByte(')'); | |
| 2884 } | |
| 2885 | |
| 2886 void StructLiteralExp::toMangleBuffer(OutBuffer *buf) | |
| 2887 { | |
| 2888 size_t dim = elements ? elements->dim : 0; | |
| 2889 buf->printf("S%u", dim); | |
| 2890 for (size_t i = 0; i < dim; i++) | |
| 2891 { Expression *e = (Expression *)elements->data[i]; | |
| 2892 if (e) | |
| 2893 e->toMangleBuffer(buf); | |
| 2894 else | |
| 2895 buf->writeByte('v'); // 'v' for void | |
| 2896 } | |
| 2897 } | |
| 2898 | |
| 2899 /************************ TypeDotIdExp ************************************/ | |
| 2900 | |
| 2901 /* Things like: | |
| 2902 * int.size | |
| 2903 * foo.size | |
| 2904 * (foo).size | |
| 2905 * cast(foo).size | |
| 2906 */ | |
| 2907 | |
| 2908 TypeDotIdExp::TypeDotIdExp(Loc loc, Type *type, Identifier *ident) | |
| 2909 : Expression(loc, TOKtypedot, sizeof(TypeDotIdExp)) | |
| 2910 { | |
| 2911 this->type = type; | |
| 2912 this->ident = ident; | |
| 2913 } | |
| 2914 | |
| 2915 Expression *TypeDotIdExp::syntaxCopy() | |
| 2916 { | |
| 2917 TypeDotIdExp *te = new TypeDotIdExp(loc, type->syntaxCopy(), ident); | |
| 2918 return te; | |
| 2919 } | |
| 2920 | |
| 2921 Expression *TypeDotIdExp::semantic(Scope *sc) | |
| 2922 { Expression *e; | |
| 2923 | |
| 2924 #if LOGSEMANTIC | |
| 2925 printf("TypeDotIdExp::semantic()\n"); | |
| 2926 #endif | |
| 2927 e = new DotIdExp(loc, new TypeExp(loc, type), ident); | |
| 2928 e = e->semantic(sc); | |
| 2929 return e; | |
| 2930 } | |
| 2931 | |
| 2932 void TypeDotIdExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2933 { | |
| 2934 buf->writeByte('('); | |
| 2935 type->toCBuffer(buf, NULL, hgs); | |
| 2936 buf->writeByte(')'); | |
| 2937 buf->writeByte('.'); | |
| 2938 buf->writestring(ident->toChars()); | |
| 2939 } | |
| 2940 | |
| 2941 /************************************************************/ | |
| 2942 | |
| 2943 // Mainly just a placeholder | |
| 2944 | |
| 2945 TypeExp::TypeExp(Loc loc, Type *type) | |
| 2946 : Expression(loc, TOKtype, sizeof(TypeExp)) | |
| 2947 { | |
| 2948 //printf("TypeExp::TypeExp(%s)\n", type->toChars()); | |
| 2949 this->type = type; | |
| 2950 } | |
| 2951 | |
| 2952 Expression *TypeExp::semantic(Scope *sc) | |
| 2953 { | |
| 2954 //printf("TypeExp::semantic(%s)\n", type->toChars()); | |
| 2955 type = type->semantic(loc, sc); | |
| 2956 return this; | |
| 2957 } | |
| 2958 | |
| 2959 void TypeExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2960 { | |
| 2961 type->toCBuffer(buf, NULL, hgs); | |
| 2962 } | |
| 2963 | |
| 2964 /************************************************************/ | |
| 2965 | |
| 2966 // Mainly just a placeholder | |
| 2967 | |
| 2968 ScopeExp::ScopeExp(Loc loc, ScopeDsymbol *pkg) | |
| 2969 : Expression(loc, TOKimport, sizeof(ScopeExp)) | |
| 2970 { | |
| 2971 //printf("ScopeExp::ScopeExp(pkg = '%s')\n", pkg->toChars()); | |
| 2972 //static int count; if (++count == 38) *(char*)0=0; | |
| 2973 this->sds = pkg; | |
| 2974 } | |
| 2975 | |
| 2976 Expression *ScopeExp::syntaxCopy() | |
| 2977 { | |
| 2978 ScopeExp *se = new ScopeExp(loc, (ScopeDsymbol *)sds->syntaxCopy(NULL)); | |
| 2979 return se; | |
| 2980 } | |
| 2981 | |
| 2982 Expression *ScopeExp::semantic(Scope *sc) | |
| 2983 { | |
| 2984 TemplateInstance *ti; | |
| 2985 ScopeDsymbol *sds2; | |
| 2986 | |
| 2987 #if LOGSEMANTIC | |
| 2988 printf("+ScopeExp::semantic('%s')\n", toChars()); | |
| 2989 #endif | |
| 2990 Lagain: | |
| 2991 ti = sds->isTemplateInstance(); | |
| 2992 if (ti && !global.errors) | |
| 2993 { Dsymbol *s; | |
| 2994 if (!ti->semanticdone) | |
| 2995 ti->semantic(sc); | |
| 2996 s = ti->inst->toAlias(); | |
| 2997 sds2 = s->isScopeDsymbol(); | |
| 2998 if (!sds2) | |
| 2999 { Expression *e; | |
| 3000 | |
| 3001 //printf("s = %s, '%s'\n", s->kind(), s->toChars()); | |
| 3002 if (ti->withsym) | |
| 3003 { | |
| 3004 // Same as wthis.s | |
| 3005 e = new VarExp(loc, ti->withsym->withstate->wthis); | |
| 3006 e = new DotVarExp(loc, e, s->isDeclaration()); | |
| 3007 } | |
| 3008 else | |
| 3009 e = new DsymbolExp(loc, s); | |
| 3010 e = e->semantic(sc); | |
| 3011 //printf("-1ScopeExp::semantic()\n"); | |
| 3012 return e; | |
| 3013 } | |
| 3014 if (sds2 != sds) | |
| 3015 { | |
| 3016 sds = sds2; | |
| 3017 goto Lagain; | |
| 3018 } | |
| 3019 //printf("sds = %s, '%s'\n", sds->kind(), sds->toChars()); | |
| 3020 } | |
| 3021 else | |
| 3022 { | |
| 3023 //printf("sds = %s, '%s'\n", sds->kind(), sds->toChars()); | |
| 3024 //printf("\tparent = '%s'\n", sds->parent->toChars()); | |
| 3025 sds->semantic(sc); | |
| 3026 } | |
| 3027 type = Type::tvoid; | |
| 3028 //printf("-2ScopeExp::semantic() %s\n", toChars()); | |
| 3029 return this; | |
| 3030 } | |
| 3031 | |
| 3032 void ScopeExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3033 { | |
| 3034 if (sds->isTemplateInstance()) | |
| 3035 { | |
| 3036 sds->toCBuffer(buf, hgs); | |
| 3037 } | |
| 3038 else | |
| 3039 { | |
| 3040 buf->writestring(sds->kind()); | |
| 3041 buf->writestring(" "); | |
| 3042 buf->writestring(sds->toChars()); | |
| 3043 } | |
| 3044 } | |
| 3045 | |
| 3046 /********************** TemplateExp **************************************/ | |
| 3047 | |
| 3048 // Mainly just a placeholder | |
| 3049 | |
| 3050 TemplateExp::TemplateExp(Loc loc, TemplateDeclaration *td) | |
| 3051 : Expression(loc, TOKtemplate, sizeof(TemplateExp)) | |
| 3052 { | |
| 3053 //printf("TemplateExp(): %s\n", td->toChars()); | |
| 3054 this->td = td; | |
| 3055 } | |
| 3056 | |
| 3057 void TemplateExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3058 { | |
| 3059 buf->writestring(td->toChars()); | |
| 3060 } | |
| 3061 | |
| 3062 void TemplateExp::rvalue() | |
| 3063 { | |
| 3064 error("template %s has no value", toChars()); | |
| 3065 } | |
| 3066 | |
| 3067 /********************** NewExp **************************************/ | |
| 3068 | |
| 3069 NewExp::NewExp(Loc loc, Expression *thisexp, Expressions *newargs, | |
| 3070 Type *newtype, Expressions *arguments) | |
| 3071 : Expression(loc, TOKnew, sizeof(NewExp)) | |
| 3072 { | |
| 3073 this->thisexp = thisexp; | |
| 3074 this->newargs = newargs; | |
| 3075 this->newtype = newtype; | |
| 3076 this->arguments = arguments; | |
| 3077 member = NULL; | |
| 3078 allocator = NULL; | |
| 3079 onstack = 0; | |
| 3080 } | |
| 3081 | |
| 3082 Expression *NewExp::syntaxCopy() | |
| 3083 { | |
| 3084 return new NewExp(loc, | |
| 3085 thisexp ? thisexp->syntaxCopy() : NULL, | |
| 3086 arraySyntaxCopy(newargs), | |
| 3087 newtype->syntaxCopy(), arraySyntaxCopy(arguments)); | |
| 3088 } | |
| 3089 | |
| 3090 | |
| 3091 Expression *NewExp::semantic(Scope *sc) | |
| 3092 { int i; | |
| 3093 Type *tb; | |
| 3094 ClassDeclaration *cdthis = NULL; | |
| 3095 | |
| 3096 #if LOGSEMANTIC | |
| 3097 printf("NewExp::semantic() %s\n", toChars()); | |
| 3098 if (thisexp) | |
| 3099 printf("\tthisexp = %s\n", thisexp->toChars()); | |
| 3100 printf("\tnewtype: %s\n", newtype->toChars()); | |
| 3101 #endif | |
| 3102 if (type) // if semantic() already run | |
| 3103 return this; | |
| 3104 | |
| 3105 Lagain: | |
| 3106 if (thisexp) | |
| 3107 { thisexp = thisexp->semantic(sc); | |
| 3108 cdthis = thisexp->type->isClassHandle(); | |
| 3109 if (cdthis) | |
| 3110 { | |
| 3111 sc = sc->push(cdthis); | |
| 3112 type = newtype->semantic(loc, sc); | |
| 3113 sc = sc->pop(); | |
| 3114 } | |
| 3115 else | |
| 3116 { | |
| 3117 error("'this' for nested class must be a class type, not %s", thisexp->type->toChars()); | |
| 3118 type = newtype->semantic(loc, sc); | |
| 3119 } | |
| 3120 } | |
| 3121 else | |
| 3122 type = newtype->semantic(loc, sc); | |
| 3123 newtype = type; // in case type gets cast to something else | |
| 3124 tb = type->toBasetype(); | |
| 3125 //printf("tb: %s, deco = %s\n", tb->toChars(), tb->deco); | |
| 3126 | |
| 3127 arrayExpressionSemantic(newargs, sc); | |
| 3128 preFunctionArguments(loc, sc, newargs); | |
| 3129 arrayExpressionSemantic(arguments, sc); | |
| 3130 preFunctionArguments(loc, sc, arguments); | |
| 3131 | |
| 3132 if (thisexp && tb->ty != Tclass) | |
| 3133 error("e.new is only for allocating nested classes, not %s", tb->toChars()); | |
| 3134 | |
| 3135 if (tb->ty == Tclass) | |
| 3136 { TypeFunction *tf; | |
| 3137 | |
| 3138 TypeClass *tc = (TypeClass *)(tb); | |
| 3139 ClassDeclaration *cd = tc->sym->isClassDeclaration(); | |
| 3140 if (cd->isInterfaceDeclaration()) | |
| 3141 error("cannot create instance of interface %s", cd->toChars()); | |
| 3142 else if (cd->isAbstract()) | |
| 3143 error("cannot create instance of abstract class %s", cd->toChars()); | |
| 3144 checkDeprecated(sc, cd); | |
| 3145 if (cd->isNested()) | |
| 3146 { /* We need a 'this' pointer for the nested class. | |
| 3147 * Ensure we have the right one. | |
| 3148 */ | |
| 3149 Dsymbol *s = cd->toParent2(); | |
| 3150 ClassDeclaration *cdn = s->isClassDeclaration(); | |
| 3151 | |
| 3152 //printf("isNested, cdn = %s\n", cdn ? cdn->toChars() : "null"); | |
| 3153 if (cdn) | |
| 3154 { | |
| 3155 if (!cdthis) | |
| 3156 { | |
| 3157 // Supply an implicit 'this' and try again | |
| 3158 thisexp = new ThisExp(loc); | |
| 3159 for (Dsymbol *sp = sc->parent; 1; sp = sp->parent) | |
| 3160 { if (!sp) | |
| 3161 { | |
| 3162 error("outer class %s 'this' needed to 'new' nested class %s", cdn->toChars(), cd->toChars()); | |
| 3163 break; | |
| 3164 } | |
| 3165 ClassDeclaration *cdp = sp->isClassDeclaration(); | |
| 3166 if (!cdp) | |
| 3167 continue; | |
| 3168 if (cdp == cdn || cdn->isBaseOf(cdp, NULL)) | |
| 3169 break; | |
| 3170 // Add a '.outer' and try again | |
| 3171 thisexp = new DotIdExp(loc, thisexp, Id::outer); | |
| 3172 } | |
| 3173 if (!global.errors) | |
| 3174 goto Lagain; | |
| 3175 } | |
| 3176 if (cdthis) | |
| 3177 { | |
| 3178 //printf("cdthis = %s\n", cdthis->toChars()); | |
| 3179 if (cdthis != cdn && !cdn->isBaseOf(cdthis, NULL)) | |
| 3180 error("'this' for nested class must be of type %s, not %s", cdn->toChars(), thisexp->type->toChars()); | |
| 3181 } | |
| 3182 #if 0 | |
| 3183 else | |
| 3184 { | |
| 3185 for (Dsymbol *sf = sc->func; 1; sf= sf->toParent2()->isFuncDeclaration()) | |
| 3186 { | |
| 3187 if (!sf) | |
| 3188 { | |
| 3189 error("outer class %s 'this' needed to 'new' nested class %s", cdn->toChars(), cd->toChars()); | |
| 3190 break; | |
| 3191 } | |
| 3192 printf("sf = %s\n", sf->toChars()); | |
| 3193 AggregateDeclaration *ad = sf->isThis(); | |
| 3194 if (ad && (ad == cdn || cdn->isBaseOf(ad->isClassDeclaration(), NULL))) | |
| 3195 break; | |
| 3196 } | |
| 3197 } | |
| 3198 #endif | |
| 3199 } | |
| 3200 else if (thisexp) | |
| 3201 error("e.new is only for allocating nested classes"); | |
| 3202 } | |
| 3203 else if (thisexp) | |
| 3204 error("e.new is only for allocating nested classes"); | |
| 3205 | |
| 3206 FuncDeclaration *f = cd->ctor; | |
| 3207 if (f) | |
| 3208 { | |
| 3209 assert(f); | |
| 3210 f = f->overloadResolve(loc, arguments); | |
| 3211 checkDeprecated(sc, f); | |
| 3212 member = f->isCtorDeclaration(); | |
| 3213 assert(member); | |
| 3214 | |
| 3215 cd->accessCheck(loc, sc, member); | |
| 3216 | |
| 3217 tf = (TypeFunction *)f->type; | |
| 3218 type = tf->next; | |
| 3219 | |
| 3220 if (!arguments) | |
| 3221 arguments = new Expressions(); | |
| 3222 functionArguments(loc, sc, tf, arguments); | |
| 3223 } | |
| 3224 else | |
| 3225 { | |
| 3226 if (arguments && arguments->dim) | |
| 3227 error("no constructor for %s", cd->toChars()); | |
| 3228 } | |
| 3229 | |
| 3230 if (cd->aggNew) | |
| 3231 { Expression *e; | |
| 3232 | |
| 3233 f = cd->aggNew; | |
| 3234 | |
| 3235 // Prepend the uint size argument to newargs[] | |
| 3236 e = new IntegerExp(loc, cd->size(loc), Type::tuns32); | |
| 3237 if (!newargs) | |
| 3238 newargs = new Expressions(); | |
| 3239 newargs->shift(e); | |
| 3240 | |
| 3241 f = f->overloadResolve(loc, newargs); | |
| 3242 allocator = f->isNewDeclaration(); | |
| 3243 assert(allocator); | |
| 3244 | |
| 3245 tf = (TypeFunction *)f->type; | |
| 3246 functionArguments(loc, sc, tf, newargs); | |
| 3247 } | |
| 3248 else | |
| 3249 { | |
| 3250 if (newargs && newargs->dim) | |
| 3251 error("no allocator for %s", cd->toChars()); | |
| 3252 } | |
| 3253 | |
| 3254 } | |
| 3255 else if (tb->ty == Tstruct) | |
| 3256 { | |
| 3257 TypeStruct *ts = (TypeStruct *)tb; | |
| 3258 StructDeclaration *sd = ts->sym; | |
| 3259 FuncDeclaration *f = sd->aggNew; | |
| 3260 TypeFunction *tf; | |
| 3261 | |
| 3262 if (arguments && arguments->dim) | |
| 3263 error("no constructor for %s", type->toChars()); | |
| 3264 | |
| 3265 if (f) | |
| 3266 { | |
| 3267 Expression *e; | |
| 3268 | |
| 3269 // Prepend the uint size argument to newargs[] | |
| 3270 e = new IntegerExp(loc, sd->size(loc), Type::tuns32); | |
| 3271 if (!newargs) | |
| 3272 newargs = new Expressions(); | |
| 3273 newargs->shift(e); | |
| 3274 | |
| 3275 f = f->overloadResolve(loc, newargs); | |
| 3276 allocator = f->isNewDeclaration(); | |
| 3277 assert(allocator); | |
| 3278 | |
| 3279 tf = (TypeFunction *)f->type; | |
| 3280 functionArguments(loc, sc, tf, newargs); | |
| 3281 | |
| 3282 e = new VarExp(loc, f); | |
| 3283 e = new CallExp(loc, e, newargs); | |
| 3284 e = e->semantic(sc); | |
| 3285 e->type = type->pointerTo(); | |
| 3286 return e; | |
| 3287 } | |
| 3288 | |
| 3289 type = type->pointerTo(); | |
| 3290 } | |
| 3291 else if (tb->ty == Tarray && (arguments && arguments->dim)) | |
| 3292 { | |
| 3293 for (size_t i = 0; i < arguments->dim; i++) | |
| 3294 { | |
| 3295 if (tb->ty != Tarray) | |
| 3296 { error("too many arguments for array"); | |
| 3297 arguments->dim = i; | |
| 3298 break; | |
| 3299 } | |
| 3300 | |
| 3301 Expression *arg = (Expression *)arguments->data[i]; | |
| 3302 arg = resolveProperties(sc, arg); | |
| 3303 arg = arg->implicitCastTo(sc, Type::tsize_t); | |
| 3304 if (arg->op == TOKint64 && (long long)arg->toInteger() < 0) | |
| 3305 error("negative array index %s", arg->toChars()); | |
| 3306 arguments->data[i] = (void *) arg; | |
| 3307 tb = tb->next->toBasetype(); | |
| 3308 } | |
| 3309 } | |
| 3310 else if (tb->isscalar()) | |
| 3311 { | |
| 3312 if (arguments && arguments->dim) | |
| 3313 error("no constructor for %s", type->toChars()); | |
| 3314 | |
| 3315 type = type->pointerTo(); | |
| 3316 } | |
| 3317 else | |
| 3318 { | |
| 3319 error("new can only create structs, dynamic arrays or class objects, not %s's", type->toChars()); | |
| 3320 type = type->pointerTo(); | |
| 3321 } | |
| 3322 | |
| 3323 //printf("NewExp: '%s'\n", toChars()); | |
| 3324 //printf("NewExp:type '%s'\n", type->toChars()); | |
| 3325 | |
| 3326 return this; | |
| 3327 } | |
| 3328 | |
| 3329 int NewExp::checkSideEffect(int flag) | |
| 3330 { | |
| 3331 return 1; | |
| 3332 } | |
| 3333 | |
| 3334 void NewExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3335 { int i; | |
| 3336 | |
| 3337 if (thisexp) | |
| 3338 { expToCBuffer(buf, hgs, thisexp, PREC_primary); | |
| 3339 buf->writeByte('.'); | |
| 3340 } | |
| 3341 buf->writestring("new "); | |
| 3342 if (newargs && newargs->dim) | |
| 3343 { | |
| 3344 buf->writeByte('('); | |
| 3345 argsToCBuffer(buf, newargs, hgs); | |
| 3346 buf->writeByte(')'); | |
| 3347 } | |
| 3348 newtype->toCBuffer(buf, NULL, hgs); | |
| 3349 if (arguments && arguments->dim) | |
| 3350 { | |
| 3351 buf->writeByte('('); | |
| 3352 argsToCBuffer(buf, arguments, hgs); | |
| 3353 buf->writeByte(')'); | |
| 3354 } | |
| 3355 } | |
| 3356 | |
| 3357 /********************** NewAnonClassExp **************************************/ | |
| 3358 | |
| 3359 NewAnonClassExp::NewAnonClassExp(Loc loc, Expression *thisexp, | |
| 3360 Expressions *newargs, ClassDeclaration *cd, Expressions *arguments) | |
| 3361 : Expression(loc, TOKnewanonclass, sizeof(NewAnonClassExp)) | |
| 3362 { | |
| 3363 this->thisexp = thisexp; | |
| 3364 this->newargs = newargs; | |
| 3365 this->cd = cd; | |
| 3366 this->arguments = arguments; | |
| 3367 } | |
| 3368 | |
| 3369 Expression *NewAnonClassExp::syntaxCopy() | |
| 3370 { | |
| 3371 return new NewAnonClassExp(loc, | |
| 3372 thisexp ? thisexp->syntaxCopy() : NULL, | |
| 3373 arraySyntaxCopy(newargs), | |
| 3374 (ClassDeclaration *)cd->syntaxCopy(NULL), | |
| 3375 arraySyntaxCopy(arguments)); | |
| 3376 } | |
| 3377 | |
| 3378 | |
| 3379 Expression *NewAnonClassExp::semantic(Scope *sc) | |
| 3380 { | |
| 3381 #if LOGSEMANTIC | |
| 3382 printf("NewAnonClassExp::semantic() %s\n", toChars()); | |
| 3383 //printf("type: %s\n", type->toChars()); | |
| 3384 #endif | |
| 3385 | |
| 3386 Expression *d = new DeclarationExp(loc, cd); | |
| 3387 d = d->semantic(sc); | |
| 3388 | |
| 3389 Expression *n = new NewExp(loc, thisexp, newargs, cd->type, arguments); | |
| 3390 | |
| 3391 Expression *c = new CommaExp(loc, d, n); | |
| 3392 return c->semantic(sc); | |
| 3393 } | |
| 3394 | |
| 3395 int NewAnonClassExp::checkSideEffect(int flag) | |
| 3396 { | |
| 3397 return 1; | |
| 3398 } | |
| 3399 | |
| 3400 void NewAnonClassExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3401 { int i; | |
| 3402 | |
| 3403 if (thisexp) | |
| 3404 { expToCBuffer(buf, hgs, thisexp, PREC_primary); | |
| 3405 buf->writeByte('.'); | |
| 3406 } | |
| 3407 buf->writestring("new"); | |
| 3408 if (newargs && newargs->dim) | |
| 3409 { | |
| 3410 buf->writeByte('('); | |
| 3411 argsToCBuffer(buf, newargs, hgs); | |
| 3412 buf->writeByte(')'); | |
| 3413 } | |
| 3414 buf->writestring(" class "); | |
| 3415 if (arguments && arguments->dim) | |
| 3416 { | |
| 3417 buf->writeByte('('); | |
| 3418 argsToCBuffer(buf, arguments, hgs); | |
| 3419 buf->writeByte(')'); | |
| 3420 } | |
| 3421 //buf->writestring(" { }"); | |
| 3422 if (cd) | |
| 3423 { | |
| 3424 cd->toCBuffer(buf, hgs); | |
| 3425 } | |
| 3426 } | |
| 3427 | |
| 3428 /********************** SymOffExp **************************************/ | |
| 3429 | |
| 3430 SymOffExp::SymOffExp(Loc loc, Declaration *var, unsigned offset) | |
| 3431 : Expression(loc, TOKsymoff, sizeof(SymOffExp)) | |
| 3432 { | |
| 3433 assert(var); | |
| 3434 this->var = var; | |
| 3435 this->offset = offset; | |
| 3436 VarDeclaration *v = var->isVarDeclaration(); | |
| 3437 if (v && v->needThis()) | |
| 3438 error("need 'this' for address of %s", v->toChars()); | |
| 3439 } | |
| 3440 | |
| 3441 Expression *SymOffExp::semantic(Scope *sc) | |
| 3442 { | |
| 3443 #if LOGSEMANTIC | |
| 3444 printf("SymOffExp::semantic('%s')\n", toChars()); | |
| 3445 #endif | |
| 3446 //var->semantic(sc); | |
| 3447 if (!type) | |
| 3448 type = var->type->pointerTo(); | |
| 3449 VarDeclaration *v = var->isVarDeclaration(); | |
| 3450 if (v) | |
|
82
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
57
diff
changeset
|
3451 { |
|
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
57
diff
changeset
|
3452 v->checkNestedReference(sc, loc); |
|
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
57
diff
changeset
|
3453 v->llvmNeedsStorage = true; |
|
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
57
diff
changeset
|
3454 } |
| 1 | 3455 return this; |
| 3456 } | |
| 3457 | |
| 3458 int SymOffExp::isBool(int result) | |
| 3459 { | |
| 3460 return result ? TRUE : FALSE; | |
| 3461 } | |
| 3462 | |
| 3463 void SymOffExp::checkEscape() | |
| 3464 { | |
| 3465 VarDeclaration *v = var->isVarDeclaration(); | |
| 3466 if (v) | |
| 3467 { | |
| 3468 if (!v->isDataseg()) | |
| 3469 error("escaping reference to local variable %s", v->toChars()); | |
| 3470 } | |
| 3471 } | |
| 3472 | |
| 3473 void SymOffExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3474 { | |
| 3475 if (offset) | |
| 3476 buf->printf("(& %s+%u)", var->toChars(), offset); | |
| 3477 else | |
| 3478 buf->printf("& %s", var->toChars()); | |
| 3479 } | |
| 3480 | |
| 3481 /******************************** VarExp **************************/ | |
| 3482 | |
| 3483 VarExp::VarExp(Loc loc, Declaration *var) | |
| 3484 : Expression(loc, TOKvar, sizeof(VarExp)) | |
| 3485 { | |
| 3486 //printf("VarExp(this = %p, '%s')\n", this, var->toChars()); | |
| 3487 this->var = var; | |
| 3488 this->type = var->type; | |
| 3489 } | |
| 3490 | |
| 3491 int VarExp::equals(Object *o) | |
| 3492 { VarExp *ne; | |
| 3493 | |
| 3494 if (this == o || | |
| 3495 (((Expression *)o)->op == TOKvar && | |
| 3496 ((ne = (VarExp *)o), type->equals(ne->type)) && | |
| 3497 var == ne->var)) | |
| 3498 return 1; | |
| 3499 return 0; | |
| 3500 } | |
| 3501 | |
| 3502 Expression *VarExp::semantic(Scope *sc) | |
| 3503 { FuncLiteralDeclaration *fd; | |
| 3504 | |
| 3505 #if LOGSEMANTIC | |
| 3506 printf("VarExp::semantic(%s)\n", toChars()); | |
| 3507 #endif | |
| 3508 if (!type) | |
| 3509 { type = var->type; | |
| 3510 #if 0 | |
| 3511 if (var->storage_class & STClazy) | |
| 3512 { | |
| 3513 TypeFunction *tf = new TypeFunction(NULL, type, 0, LINKd); | |
| 3514 type = new TypeDelegate(tf); | |
| 3515 type = type->semantic(loc, sc); | |
| 3516 } | |
| 3517 #endif | |
| 3518 } | |
| 3519 | |
| 3520 VarDeclaration *v = var->isVarDeclaration(); | |
| 3521 if (v) | |
| 3522 { | |
| 3523 if (v->isConst() && type->toBasetype()->ty != Tsarray && v->init) | |
| 3524 { | |
| 3525 ExpInitializer *ei = v->init->isExpInitializer(); | |
| 3526 if (ei) | |
| 3527 { | |
| 3528 //ei->exp->implicitCastTo(sc, type)->print(); | |
| 3529 return ei->exp->implicitCastTo(sc, type); | |
| 3530 } | |
| 3531 } | |
| 3532 v->checkNestedReference(sc, loc); | |
| 3533 } | |
| 3534 #if 0 | |
| 3535 else if ((fd = var->isFuncLiteralDeclaration()) != NULL) | |
| 3536 { Expression *e; | |
| 3537 e = new FuncExp(loc, fd); | |
| 3538 e->type = type; | |
| 3539 return e; | |
| 3540 } | |
| 3541 #endif | |
| 3542 return this; | |
| 3543 } | |
| 3544 | |
| 3545 char *VarExp::toChars() | |
| 3546 { | |
| 3547 return var->toChars(); | |
| 3548 } | |
| 3549 | |
| 3550 void VarExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3551 { | |
| 3552 buf->writestring(var->toChars()); | |
| 3553 } | |
| 3554 | |
| 3555 void VarExp::checkEscape() | |
| 3556 { | |
| 3557 VarDeclaration *v = var->isVarDeclaration(); | |
| 3558 if (v) | |
| 3559 { Type *tb = v->type->toBasetype(); | |
| 3560 // if reference type | |
| 3561 if (tb->ty == Tarray || tb->ty == Tsarray || tb->ty == Tclass) | |
| 3562 { | |
| 3563 if ((v->isAuto() || v->isScope()) && !v->noauto) | |
| 3564 error("escaping reference to auto local %s", v->toChars()); | |
| 3565 else if (v->storage_class & STCvariadic) | |
| 3566 error("escaping reference to variadic parameter %s", v->toChars()); | |
| 3567 } | |
| 3568 } | |
| 3569 } | |
| 3570 | |
| 3571 Expression *VarExp::toLvalue(Scope *sc, Expression *e) | |
| 3572 { | |
| 3573 #if 0 | |
| 3574 tym = tybasic(e1->ET->Tty); | |
| 3575 if (!(tyscalar(tym) || | |
| 3576 tym == TYstruct || | |
| 3577 tym == TYarray && e->Eoper == TOKaddr)) | |
| 3578 synerr(EM_lvalue); // lvalue expected | |
| 3579 #endif | |
| 3580 if (var->storage_class & STClazy) | |
| 3581 error("lazy variables cannot be lvalues"); | |
| 3582 return this; | |
| 3583 } | |
| 3584 | |
| 3585 Expression *VarExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 3586 { | |
| 3587 //printf("VarExp::modifiableLvalue('%s')\n", var->toChars()); | |
| 3588 if (sc->incontract && var->isParameter()) | |
| 3589 error("cannot modify parameter '%s' in contract", var->toChars()); | |
| 3590 | |
| 3591 if (type && type->toBasetype()->ty == Tsarray) | |
| 3592 error("cannot change reference to static array '%s'", var->toChars()); | |
| 3593 | |
| 3594 VarDeclaration *v = var->isVarDeclaration(); | |
| 3595 if (v && v->canassign == 0 && | |
| 3596 (var->isConst() || (global.params.Dversion > 1 && var->isFinal()))) | |
| 3597 error("cannot modify final variable '%s'", var->toChars()); | |
|
82
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
57
diff
changeset
|
3598 v->llvmNeedsStorage = true; |
| 1 | 3599 |
| 3600 if (var->isCtorinit()) | |
| 3601 { // It's only modifiable if inside the right constructor | |
| 3602 Dsymbol *s = sc->func; | |
| 3603 while (1) | |
| 3604 { | |
| 3605 FuncDeclaration *fd = NULL; | |
| 3606 if (s) | |
| 3607 fd = s->isFuncDeclaration(); | |
| 3608 if (fd && | |
| 3609 ((fd->isCtorDeclaration() && var->storage_class & STCfield) || | |
| 3610 (fd->isStaticCtorDeclaration() && !(var->storage_class & STCfield))) && | |
| 3611 fd->toParent() == var->toParent() | |
| 3612 ) | |
| 3613 { | |
| 3614 VarDeclaration *v = var->isVarDeclaration(); | |
| 3615 assert(v); | |
| 3616 v->ctorinit = 1; | |
| 3617 //printf("setting ctorinit\n"); | |
| 3618 } | |
| 3619 else | |
| 3620 { | |
| 3621 if (s) | |
| 3622 { s = s->toParent2(); | |
| 3623 continue; | |
| 3624 } | |
| 3625 else | |
| 3626 { | |
| 3627 const char *p = var->isStatic() ? "static " : ""; | |
| 3628 error("can only initialize %sconst %s inside %sconstructor", | |
| 3629 p, var->toChars(), p); | |
| 3630 } | |
| 3631 } | |
| 3632 break; | |
| 3633 } | |
| 3634 } | |
| 3635 | |
| 3636 // See if this expression is a modifiable lvalue (i.e. not const) | |
| 3637 return toLvalue(sc, e); | |
| 3638 } | |
| 3639 | |
| 3640 | |
| 3641 /******************************** TupleExp **************************/ | |
| 3642 | |
| 3643 TupleExp::TupleExp(Loc loc, Expressions *exps) | |
| 3644 : Expression(loc, TOKtuple, sizeof(TupleExp)) | |
| 3645 { | |
| 3646 //printf("TupleExp(this = %p)\n", this); | |
| 3647 this->exps = exps; | |
| 3648 this->type = NULL; | |
| 3649 } | |
| 3650 | |
| 3651 | |
| 3652 TupleExp::TupleExp(Loc loc, TupleDeclaration *tup) | |
| 3653 : Expression(loc, TOKtuple, sizeof(TupleExp)) | |
| 3654 { | |
| 3655 exps = new Expressions(); | |
| 3656 type = NULL; | |
| 3657 | |
| 3658 exps->reserve(tup->objects->dim); | |
| 3659 for (size_t i = 0; i < tup->objects->dim; i++) | |
| 3660 { Object *o = (Object *)tup->objects->data[i]; | |
| 3661 if (o->dyncast() == DYNCAST_EXPRESSION) | |
| 3662 { | |
| 3663 Expression *e = (Expression *)o; | |
| 3664 e = e->syntaxCopy(); | |
| 3665 exps->push(e); | |
| 3666 } | |
| 3667 else if (o->dyncast() == DYNCAST_DSYMBOL) | |
| 3668 { | |
| 3669 Dsymbol *s = (Dsymbol *)o; | |
| 3670 Expression *e = new DsymbolExp(loc, s); | |
| 3671 exps->push(e); | |
| 3672 } | |
| 3673 else if (o->dyncast() == DYNCAST_TYPE) | |
| 3674 { | |
| 3675 Type *t = (Type *)o; | |
| 3676 Expression *e = new TypeExp(loc, t); | |
| 3677 exps->push(e); | |
| 3678 } | |
| 3679 else | |
| 3680 { | |
| 3681 error("%s is not an expression", o->toChars()); | |
| 3682 } | |
| 3683 } | |
| 3684 } | |
| 3685 | |
| 3686 int TupleExp::equals(Object *o) | |
| 3687 { TupleExp *ne; | |
| 3688 | |
| 3689 if (this == o) | |
| 3690 return 1; | |
| 3691 if (((Expression *)o)->op == TOKtuple) | |
| 3692 { | |
| 3693 TupleExp *te = (TupleExp *)o; | |
| 3694 if (exps->dim != te->exps->dim) | |
| 3695 return 0; | |
| 3696 for (size_t i = 0; i < exps->dim; i++) | |
| 3697 { Expression *e1 = (Expression *)exps->data[i]; | |
| 3698 Expression *e2 = (Expression *)te->exps->data[i]; | |
| 3699 | |
| 3700 if (!e1->equals(e2)) | |
| 3701 return 0; | |
| 3702 } | |
| 3703 return 1; | |
| 3704 } | |
| 3705 return 0; | |
| 3706 } | |
| 3707 | |
| 3708 Expression *TupleExp::syntaxCopy() | |
| 3709 { | |
| 3710 return new TupleExp(loc, arraySyntaxCopy(exps)); | |
| 3711 } | |
| 3712 | |
| 3713 Expression *TupleExp::semantic(Scope *sc) | |
| 3714 { | |
| 3715 #if LOGSEMANTIC | |
| 3716 printf("+TupleExp::semantic(%s)\n", toChars()); | |
| 3717 #endif | |
| 3718 if (type) | |
| 3719 return this; | |
| 3720 | |
| 3721 // Run semantic() on each argument | |
| 3722 for (size_t i = 0; i < exps->dim; i++) | |
| 3723 { Expression *e = (Expression *)exps->data[i]; | |
| 3724 | |
| 3725 e = e->semantic(sc); | |
| 3726 if (!e->type) | |
| 3727 { error("%s has no value", e->toChars()); | |
| 3728 e->type = Type::terror; | |
| 3729 } | |
| 3730 exps->data[i] = (void *)e; | |
| 3731 } | |
| 3732 | |
| 3733 expandTuples(exps); | |
| 3734 if (0 && exps->dim == 1) | |
| 3735 { | |
| 3736 return (Expression *)exps->data[0]; | |
| 3737 } | |
| 3738 type = new TypeTuple(exps); | |
| 3739 //printf("-TupleExp::semantic(%s)\n", toChars()); | |
| 3740 return this; | |
| 3741 } | |
| 3742 | |
| 3743 void TupleExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3744 { | |
| 3745 buf->writestring("tuple("); | |
| 3746 argsToCBuffer(buf, exps, hgs); | |
| 3747 buf->writeByte(')'); | |
| 3748 } | |
| 3749 | |
| 3750 int TupleExp::checkSideEffect(int flag) | |
| 3751 { int f = 0; | |
| 3752 | |
| 3753 for (int i = 0; i < exps->dim; i++) | |
| 3754 { Expression *e = (Expression *)exps->data[i]; | |
| 3755 | |
| 3756 f |= e->checkSideEffect(2); | |
| 3757 } | |
| 3758 if (flag == 0 && f == 0) | |
| 3759 Expression::checkSideEffect(0); | |
| 3760 return f; | |
| 3761 } | |
| 3762 | |
| 3763 void TupleExp::checkEscape() | |
| 3764 { | |
| 3765 for (size_t i = 0; i < exps->dim; i++) | |
| 3766 { Expression *e = (Expression *)exps->data[i]; | |
| 3767 e->checkEscape(); | |
| 3768 } | |
| 3769 } | |
| 3770 | |
| 3771 /******************************** FuncExp *********************************/ | |
| 3772 | |
| 3773 FuncExp::FuncExp(Loc loc, FuncLiteralDeclaration *fd) | |
| 3774 : Expression(loc, TOKfunction, sizeof(FuncExp)) | |
| 3775 { | |
| 3776 this->fd = fd; | |
| 3777 } | |
| 3778 | |
| 3779 Expression *FuncExp::syntaxCopy() | |
| 3780 { | |
| 3781 return new FuncExp(loc, (FuncLiteralDeclaration *)fd->syntaxCopy(NULL)); | |
| 3782 } | |
| 3783 | |
| 3784 Expression *FuncExp::semantic(Scope *sc) | |
| 3785 { | |
| 3786 #if LOGSEMANTIC | |
| 3787 printf("FuncExp::semantic(%s)\n", toChars()); | |
| 3788 #endif | |
| 3789 if (!type) | |
| 3790 { | |
| 3791 fd->semantic(sc); | |
| 3792 fd->parent = sc->parent; | |
| 3793 if (global.errors) | |
| 3794 { | |
| 3795 if (!fd->type->next) | |
| 3796 fd->type->next = Type::terror; | |
| 3797 } | |
| 3798 else | |
| 3799 { | |
| 3800 fd->semantic2(sc); | |
| 3801 if (!global.errors) | |
| 3802 { | |
| 3803 fd->semantic3(sc); | |
| 3804 | |
| 3805 if (!global.errors && global.params.useInline) | |
| 3806 fd->inlineScan(); | |
| 3807 } | |
| 3808 } | |
| 3809 | |
| 3810 // Type is a "delegate to" or "pointer to" the function literal | |
| 3811 if (fd->isNested()) | |
| 3812 { | |
| 3813 type = new TypeDelegate(fd->type); | |
| 3814 type = type->semantic(loc, sc); | |
| 3815 } | |
| 3816 else | |
| 3817 { | |
| 3818 type = fd->type->pointerTo(); | |
| 3819 } | |
| 3820 } | |
| 3821 return this; | |
| 3822 } | |
| 3823 | |
| 3824 char *FuncExp::toChars() | |
| 3825 { | |
| 3826 return fd->toChars(); | |
| 3827 } | |
| 3828 | |
| 3829 void FuncExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3830 { | |
| 3831 buf->writestring(fd->toChars()); | |
| 3832 } | |
| 3833 | |
| 3834 | |
| 3835 /******************************** DeclarationExp **************************/ | |
| 3836 | |
| 3837 DeclarationExp::DeclarationExp(Loc loc, Dsymbol *declaration) | |
| 3838 : Expression(loc, TOKdeclaration, sizeof(DeclarationExp)) | |
| 3839 { | |
| 3840 this->declaration = declaration; | |
| 3841 } | |
| 3842 | |
| 3843 Expression *DeclarationExp::syntaxCopy() | |
| 3844 { | |
| 3845 return new DeclarationExp(loc, declaration->syntaxCopy(NULL)); | |
| 3846 } | |
| 3847 | |
| 3848 Expression *DeclarationExp::semantic(Scope *sc) | |
| 3849 { | |
| 3850 if (type) | |
| 3851 return this; | |
| 3852 | |
| 3853 #if LOGSEMANTIC | |
| 3854 printf("DeclarationExp::semantic() %s\n", toChars()); | |
| 3855 #endif | |
| 3856 | |
| 3857 /* This is here to support extern(linkage) declaration, | |
| 3858 * where the extern(linkage) winds up being an AttribDeclaration | |
| 3859 * wrapper. | |
| 3860 */ | |
| 3861 Dsymbol *s = declaration; | |
| 3862 | |
| 3863 AttribDeclaration *ad = declaration->isAttribDeclaration(); | |
| 3864 if (ad) | |
| 3865 { | |
| 3866 if (ad->decl && ad->decl->dim == 1) | |
| 3867 s = (Dsymbol *)ad->decl->data[0]; | |
| 3868 } | |
| 3869 | |
| 3870 if (s->isVarDeclaration()) | |
| 3871 { // Do semantic() on initializer first, so: | |
| 3872 // int a = a; | |
| 3873 // will be illegal. | |
| 3874 declaration->semantic(sc); | |
| 3875 s->parent = sc->parent; | |
| 3876 } | |
| 3877 | |
| 3878 //printf("inserting '%s' %p into sc = %p\n", s->toChars(), s, sc); | |
| 3879 // Insert into both local scope and function scope. | |
| 3880 // Must be unique in both. | |
| 3881 if (s->ident) | |
| 3882 { | |
| 3883 if (!sc->insert(s)) | |
| 3884 error("declaration %s is already defined", s->toPrettyChars()); | |
| 3885 else if (sc->func) | |
| 3886 { VarDeclaration *v = s->isVarDeclaration(); | |
| 3887 if ((s->isFuncDeclaration() /*|| v && v->storage_class & STCstatic*/) && | |
| 3888 !sc->func->localsymtab->insert(s)) | |
| 3889 error("declaration %s is already defined in another scope in %s", s->toPrettyChars(), sc->func->toChars()); | |
| 3890 else if (!global.params.useDeprecated) | |
| 3891 { // Disallow shadowing | |
| 3892 | |
| 3893 for (Scope *scx = sc->enclosing; scx && scx->func == sc->func; scx = scx->enclosing) | |
| 3894 { Dsymbol *s2; | |
| 3895 | |
| 3896 if (scx->scopesym && scx->scopesym->symtab && | |
| 3897 (s2 = scx->scopesym->symtab->lookup(s->ident)) != NULL && | |
| 3898 s != s2) | |
| 3899 { | |
| 3900 error("shadowing declaration %s is deprecated", s->toPrettyChars()); | |
| 3901 } | |
| 3902 } | |
| 3903 } | |
| 3904 } | |
| 3905 } | |
| 3906 if (!s->isVarDeclaration()) | |
| 3907 { | |
| 3908 declaration->semantic(sc); | |
| 3909 s->parent = sc->parent; | |
| 3910 } | |
| 3911 if (!global.errors) | |
| 3912 { | |
| 3913 declaration->semantic2(sc); | |
| 3914 if (!global.errors) | |
| 3915 { | |
| 3916 declaration->semantic3(sc); | |
| 3917 | |
| 3918 if (!global.errors && global.params.useInline) | |
| 3919 declaration->inlineScan(); | |
| 3920 } | |
| 3921 } | |
| 3922 | |
| 3923 type = Type::tvoid; | |
| 3924 return this; | |
| 3925 } | |
| 3926 | |
| 3927 int DeclarationExp::checkSideEffect(int flag) | |
| 3928 { | |
| 3929 return 1; | |
| 3930 } | |
| 3931 | |
| 3932 void DeclarationExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3933 { | |
| 3934 declaration->toCBuffer(buf, hgs); | |
| 3935 } | |
| 3936 | |
| 3937 | |
| 3938 /************************ TypeidExp ************************************/ | |
| 3939 | |
| 3940 /* | |
| 3941 * typeid(int) | |
| 3942 */ | |
| 3943 | |
| 3944 TypeidExp::TypeidExp(Loc loc, Type *typeidType) | |
| 3945 : Expression(loc, TOKtypeid, sizeof(TypeidExp)) | |
| 3946 { | |
| 3947 this->typeidType = typeidType; | |
| 3948 } | |
| 3949 | |
| 3950 | |
| 3951 Expression *TypeidExp::syntaxCopy() | |
| 3952 { | |
| 3953 return new TypeidExp(loc, typeidType->syntaxCopy()); | |
| 3954 } | |
| 3955 | |
| 3956 | |
| 3957 Expression *TypeidExp::semantic(Scope *sc) | |
| 3958 { Expression *e; | |
| 3959 | |
| 3960 #if LOGSEMANTIC | |
| 3961 printf("TypeidExp::semantic()\n"); | |
| 3962 #endif | |
| 3963 typeidType = typeidType->semantic(loc, sc); | |
| 3964 e = typeidType->getTypeInfo(sc); | |
| 3965 return e; | |
| 3966 } | |
| 3967 | |
| 3968 void TypeidExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3969 { | |
| 3970 buf->writestring("typeid("); | |
| 3971 typeidType->toCBuffer(buf, NULL, hgs); | |
| 3972 buf->writeByte(')'); | |
| 3973 } | |
| 3974 | |
| 3975 /************************************************************/ | |
| 3976 | |
| 3977 HaltExp::HaltExp(Loc loc) | |
| 3978 : Expression(loc, TOKhalt, sizeof(HaltExp)) | |
| 3979 { | |
| 3980 } | |
| 3981 | |
| 3982 Expression *HaltExp::semantic(Scope *sc) | |
| 3983 { | |
| 3984 #if LOGSEMANTIC | |
| 3985 printf("HaltExp::semantic()\n"); | |
| 3986 #endif | |
| 3987 type = Type::tvoid; | |
| 3988 return this; | |
| 3989 } | |
| 3990 | |
| 3991 int HaltExp::checkSideEffect(int flag) | |
| 3992 { | |
| 3993 return 1; | |
| 3994 } | |
| 3995 | |
| 3996 void HaltExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3997 { | |
| 3998 buf->writestring("halt"); | |
| 3999 } | |
| 4000 | |
| 4001 /************************************************************/ | |
| 4002 | |
| 19 | 4003 IsExp::IsExp(Loc loc, Type *targ, Identifier *id, enum TOK tok, |
| 1 | 4004 Type *tspec, enum TOK tok2) |
| 19 | 4005 : Expression(loc, TOKis, sizeof(IsExp)) |
| 1 | 4006 { |
| 4007 this->targ = targ; | |
| 4008 this->id = id; | |
| 4009 this->tok = tok; | |
| 4010 this->tspec = tspec; | |
| 4011 this->tok2 = tok2; | |
| 4012 } | |
| 4013 | |
| 19 | 4014 Expression *IsExp::syntaxCopy() |
| 4015 { | |
| 4016 return new IsExp(loc, | |
| 1 | 4017 targ->syntaxCopy(), |
| 4018 id, | |
| 4019 tok, | |
| 4020 tspec ? tspec->syntaxCopy() : NULL, | |
| 4021 tok2); | |
| 4022 } | |
| 4023 | |
| 19 | 4024 Expression *IsExp::semantic(Scope *sc) |
| 1 | 4025 { Type *tded; |
| 4026 | |
| 19 | 4027 //printf("IsExp::semantic()\n"); |
| 1 | 4028 if (id && !(sc->flags & SCOPEstaticif)) |
| 4029 error("can only declare type aliases within static if conditionals"); | |
| 4030 | |
| 4031 unsigned errors_save = global.errors; | |
| 4032 global.errors = 0; | |
| 4033 global.gag++; // suppress printing of error messages | |
| 4034 targ = targ->semantic(loc, sc); | |
| 4035 global.gag--; | |
| 4036 unsigned gerrors = global.errors; | |
| 4037 global.errors = errors_save; | |
| 4038 | |
| 4039 if (gerrors) // if any errors happened | |
| 4040 { // then condition is false | |
| 4041 goto Lno; | |
| 4042 } | |
| 4043 else if (tok2 != TOKreserved) | |
| 4044 { | |
| 4045 switch (tok2) | |
| 4046 { | |
| 4047 case TOKtypedef: | |
| 4048 if (targ->ty != Ttypedef) | |
| 4049 goto Lno; | |
| 4050 tded = ((TypeTypedef *)targ)->sym->basetype; | |
| 4051 break; | |
| 4052 | |
| 4053 case TOKstruct: | |
| 4054 if (targ->ty != Tstruct) | |
| 4055 goto Lno; | |
| 4056 if (((TypeStruct *)targ)->sym->isUnionDeclaration()) | |
| 4057 goto Lno; | |
| 4058 tded = targ; | |
| 4059 break; | |
| 4060 | |
| 4061 case TOKunion: | |
| 4062 if (targ->ty != Tstruct) | |
| 4063 goto Lno; | |
| 4064 if (!((TypeStruct *)targ)->sym->isUnionDeclaration()) | |
| 4065 goto Lno; | |
| 4066 tded = targ; | |
| 4067 break; | |
| 4068 | |
| 4069 case TOKclass: | |
| 4070 if (targ->ty != Tclass) | |
| 4071 goto Lno; | |
| 4072 if (((TypeClass *)targ)->sym->isInterfaceDeclaration()) | |
| 4073 goto Lno; | |
| 4074 tded = targ; | |
| 4075 break; | |
| 4076 | |
| 4077 case TOKinterface: | |
| 4078 if (targ->ty != Tclass) | |
| 4079 goto Lno; | |
| 4080 if (!((TypeClass *)targ)->sym->isInterfaceDeclaration()) | |
| 4081 goto Lno; | |
| 4082 tded = targ; | |
| 4083 break; | |
| 4084 | |
| 4085 case TOKsuper: | |
| 4086 // If class or interface, get the base class and interfaces | |
| 4087 if (targ->ty != Tclass) | |
| 4088 goto Lno; | |
| 4089 else | |
| 4090 { ClassDeclaration *cd = ((TypeClass *)targ)->sym; | |
| 4091 Arguments *args = new Arguments; | |
| 4092 args->reserve(cd->baseclasses.dim); | |
| 4093 for (size_t i = 0; i < cd->baseclasses.dim; i++) | |
| 4094 { BaseClass *b = (BaseClass *)cd->baseclasses.data[i]; | |
| 4095 args->push(new Argument(STCin, b->type, NULL, NULL)); | |
| 4096 } | |
| 4097 tded = new TypeTuple(args); | |
| 4098 } | |
| 4099 break; | |
| 4100 | |
| 4101 case TOKenum: | |
| 4102 if (targ->ty != Tenum) | |
| 4103 goto Lno; | |
| 4104 tded = ((TypeEnum *)targ)->sym->memtype; | |
| 4105 break; | |
| 4106 | |
| 4107 case TOKdelegate: | |
| 4108 if (targ->ty != Tdelegate) | |
| 4109 goto Lno; | |
| 4110 tded = targ->next; // the underlying function type | |
| 4111 break; | |
| 4112 | |
| 4113 case TOKfunction: | |
| 4114 { if (targ->ty != Tfunction) | |
| 4115 goto Lno; | |
| 4116 tded = targ; | |
| 4117 | |
| 4118 /* Generate tuple from function parameter types. | |
| 4119 */ | |
| 4120 assert(tded->ty == Tfunction); | |
| 4121 Arguments *params = ((TypeFunction *)tded)->parameters; | |
| 4122 size_t dim = Argument::dim(params); | |
| 4123 Arguments *args = new Arguments; | |
| 4124 args->reserve(dim); | |
| 4125 for (size_t i = 0; i < dim; i++) | |
| 4126 { Argument *arg = Argument::getNth(params, i); | |
| 4127 assert(arg && arg->type); | |
| 4128 args->push(new Argument(arg->storageClass, arg->type, NULL, NULL)); | |
| 4129 } | |
| 4130 tded = new TypeTuple(args); | |
| 4131 break; | |
| 4132 } | |
| 4133 case TOKreturn: | |
| 4134 /* Get the 'return type' for the function, | |
| 4135 * delegate, or pointer to function. | |
| 4136 */ | |
| 4137 if (targ->ty == Tfunction) | |
| 4138 tded = targ->next; | |
| 4139 else if (targ->ty == Tdelegate) | |
| 4140 tded = targ->next->next; | |
| 4141 else if (targ->ty == Tpointer && targ->next->ty == Tfunction) | |
| 4142 tded = targ->next->next; | |
| 4143 else | |
| 4144 goto Lno; | |
| 4145 break; | |
| 4146 | |
| 4147 default: | |
| 4148 assert(0); | |
| 4149 } | |
| 4150 goto Lyes; | |
| 4151 } | |
| 4152 else if (id && tspec) | |
| 4153 { | |
| 4154 /* Evaluate to TRUE if targ matches tspec. | |
| 4155 * If TRUE, declare id as an alias for the specialized type. | |
| 4156 */ | |
| 4157 | |
| 4158 MATCH m; | |
| 4159 TemplateTypeParameter tp(loc, id, NULL, NULL); | |
| 4160 | |
| 4161 TemplateParameters parameters; | |
| 4162 parameters.setDim(1); | |
| 4163 parameters.data[0] = (void *)&tp; | |
| 4164 | |
| 4165 Objects dedtypes; | |
| 4166 dedtypes.setDim(1); | |
| 4167 dedtypes.data[0] = NULL; | |
| 4168 | |
| 4169 m = targ->deduceType(NULL, tspec, ¶meters, &dedtypes); | |
| 4170 if (m == MATCHnomatch || | |
| 4171 (m != MATCHexact && tok == TOKequal)) | |
| 4172 goto Lno; | |
| 4173 else | |
| 4174 { | |
| 4175 assert(dedtypes.dim == 1); | |
| 4176 tded = (Type *)dedtypes.data[0]; | |
| 4177 if (!tded) | |
| 4178 tded = targ; | |
| 4179 goto Lyes; | |
| 4180 } | |
| 4181 } | |
| 4182 else if (id) | |
| 4183 { | |
| 4184 /* Declare id as an alias for type targ. Evaluate to TRUE | |
| 4185 */ | |
| 4186 tded = targ; | |
| 4187 goto Lyes; | |
| 4188 } | |
| 4189 else if (tspec) | |
| 4190 { | |
| 4191 /* Evaluate to TRUE if targ matches tspec | |
| 4192 */ | |
| 4193 tspec = tspec->semantic(loc, sc); | |
| 4194 //printf("targ = %s\n", targ->toChars()); | |
| 4195 //printf("tspec = %s\n", tspec->toChars()); | |
| 4196 if (tok == TOKcolon) | |
| 4197 { if (targ->implicitConvTo(tspec)) | |
| 4198 goto Lyes; | |
| 4199 else | |
| 4200 goto Lno; | |
| 4201 } | |
| 4202 else /* == */ | |
| 4203 { if (targ->equals(tspec)) | |
| 4204 goto Lyes; | |
| 4205 else | |
| 4206 goto Lno; | |
| 4207 } | |
| 4208 } | |
| 4209 | |
| 4210 Lyes: | |
| 4211 if (id) | |
| 4212 { | |
| 4213 Dsymbol *s = new AliasDeclaration(loc, id, tded); | |
| 4214 s->semantic(sc); | |
| 4215 sc->insert(s); | |
| 4216 if (sc->sd) | |
| 4217 s->addMember(sc, sc->sd, 1); | |
| 4218 } | |
| 4219 return new IntegerExp(1); | |
| 4220 | |
| 4221 Lno: | |
| 4222 return new IntegerExp(0); | |
| 4223 } | |
| 4224 | |
| 19 | 4225 void IsExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 1 | 4226 { |
| 4227 buf->writestring("is("); | |
| 4228 targ->toCBuffer(buf, id, hgs); | |
| 19 | 4229 if (tok2 != TOKreserved) |
| 4230 { | |
| 4231 buf->printf(" %s %s", Token::toChars(tok), Token::toChars(tok2)); | |
| 4232 } | |
| 4233 else if (tspec) | |
| 1 | 4234 { |
| 4235 if (tok == TOKcolon) | |
| 4236 buf->writestring(" : "); | |
| 4237 else | |
| 4238 buf->writestring(" == "); | |
| 4239 tspec->toCBuffer(buf, NULL, hgs); | |
| 4240 } | |
| 19 | 4241 #if V2 |
| 4242 if (parameters) | |
| 4243 { // First parameter is already output, so start with second | |
| 4244 for (int i = 1; i < parameters->dim; i++) | |
| 4245 { | |
| 4246 buf->writeByte(','); | |
| 4247 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 4248 tp->toCBuffer(buf, hgs); | |
| 4249 } | |
| 4250 } | |
| 4251 #endif | |
| 1 | 4252 buf->writeByte(')'); |
| 4253 } | |
| 4254 | |
| 4255 | |
| 4256 /************************************************************/ | |
| 4257 | |
| 4258 UnaExp::UnaExp(Loc loc, enum TOK op, int size, Expression *e1) | |
| 4259 : Expression(loc, op, size) | |
| 4260 { | |
| 4261 this->e1 = e1; | |
| 4262 } | |
| 4263 | |
| 4264 Expression *UnaExp::syntaxCopy() | |
| 4265 { UnaExp *e; | |
| 4266 | |
| 4267 e = (UnaExp *)copy(); | |
| 4268 e->type = NULL; | |
| 4269 e->e1 = e->e1->syntaxCopy(); | |
| 4270 return e; | |
| 4271 } | |
| 4272 | |
| 4273 Expression *UnaExp::semantic(Scope *sc) | |
| 4274 { | |
| 4275 #if LOGSEMANTIC | |
| 4276 printf("UnaExp::semantic('%s')\n", toChars()); | |
| 4277 #endif | |
| 4278 e1 = e1->semantic(sc); | |
| 4279 // if (!e1->type) | |
| 4280 // error("%s has no value", e1->toChars()); | |
| 4281 return this; | |
| 4282 } | |
| 4283 | |
| 4284 void UnaExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4285 { | |
| 4286 buf->writestring(Token::toChars(op)); | |
| 4287 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 4288 } | |
| 4289 | |
| 4290 /************************************************************/ | |
| 4291 | |
| 4292 BinExp::BinExp(Loc loc, enum TOK op, int size, Expression *e1, Expression *e2) | |
| 4293 : Expression(loc, op, size) | |
| 4294 { | |
| 4295 this->e1 = e1; | |
| 4296 this->e2 = e2; | |
| 4297 } | |
| 4298 | |
| 4299 Expression *BinExp::syntaxCopy() | |
| 4300 { BinExp *e; | |
| 4301 | |
| 4302 e = (BinExp *)copy(); | |
| 4303 e->type = NULL; | |
| 4304 e->e1 = e->e1->syntaxCopy(); | |
| 4305 e->e2 = e->e2->syntaxCopy(); | |
| 4306 return e; | |
| 4307 } | |
| 4308 | |
| 4309 Expression *BinExp::semantic(Scope *sc) | |
| 4310 { | |
| 4311 #if LOGSEMANTIC | |
| 4312 printf("BinExp::semantic('%s')\n", toChars()); | |
| 4313 #endif | |
| 4314 e1 = e1->semantic(sc); | |
| 4315 if (!e1->type) | |
| 4316 { | |
| 4317 error("%s has no value", e1->toChars()); | |
| 4318 e1->type = Type::terror; | |
| 4319 } | |
| 4320 e2 = e2->semantic(sc); | |
| 4321 if (!e2->type) | |
| 4322 { | |
| 4323 error("%s has no value", e2->toChars()); | |
| 4324 e2->type = Type::terror; | |
| 4325 } | |
| 4326 assert(e1->type); | |
| 4327 return this; | |
| 4328 } | |
| 4329 | |
| 4330 Expression *BinExp::semanticp(Scope *sc) | |
| 4331 { | |
| 4332 BinExp::semantic(sc); | |
| 4333 e1 = resolveProperties(sc, e1); | |
| 4334 e2 = resolveProperties(sc, e2); | |
| 4335 return this; | |
| 4336 } | |
| 4337 | |
| 4338 /*************************** | |
| 4339 * Common semantic routine for some xxxAssignExp's. | |
| 4340 */ | |
| 4341 | |
| 4342 Expression *BinExp::commonSemanticAssign(Scope *sc) | |
| 4343 { Expression *e; | |
| 4344 | |
| 4345 if (!type) | |
| 4346 { | |
| 4347 BinExp::semantic(sc); | |
| 4348 e2 = resolveProperties(sc, e2); | |
| 4349 | |
| 4350 e = op_overload(sc); | |
| 4351 if (e) | |
| 4352 return e; | |
| 4353 | |
| 4354 e1 = e1->modifiableLvalue(sc, NULL); | |
| 4355 e1->checkScalar(); | |
| 4356 type = e1->type; | |
| 4357 if (type->toBasetype()->ty == Tbool) | |
| 4358 { | |
| 4359 error("operator not allowed on bool expression %s", toChars()); | |
| 4360 } | |
| 4361 typeCombine(sc); | |
| 4362 e1->checkArithmetic(); | |
| 4363 e2->checkArithmetic(); | |
| 4364 | |
| 4365 if (op == TOKmodass && e2->type->iscomplex()) | |
| 4366 { error("cannot perform modulo complex arithmetic"); | |
| 4367 return new IntegerExp(0); | |
| 4368 } | |
| 4369 } | |
| 4370 return this; | |
| 4371 } | |
| 4372 | |
| 4373 Expression *BinExp::commonSemanticAssignIntegral(Scope *sc) | |
| 4374 { Expression *e; | |
| 4375 | |
| 4376 if (!type) | |
| 4377 { | |
| 4378 BinExp::semantic(sc); | |
| 4379 e2 = resolveProperties(sc, e2); | |
| 4380 | |
| 4381 e = op_overload(sc); | |
| 4382 if (e) | |
| 4383 return e; | |
| 4384 | |
| 4385 e1 = e1->modifiableLvalue(sc, NULL); | |
| 4386 e1->checkScalar(); | |
| 4387 type = e1->type; | |
| 4388 if (type->toBasetype()->ty == Tbool) | |
| 4389 { | |
| 4390 e2 = e2->implicitCastTo(sc, type); | |
| 4391 } | |
| 4392 | |
| 4393 typeCombine(sc); | |
| 4394 e1->checkIntegral(); | |
| 4395 e2->checkIntegral(); | |
| 4396 } | |
| 4397 return this; | |
| 4398 } | |
| 4399 | |
| 4400 int BinExp::checkSideEffect(int flag) | |
| 4401 { | |
| 4402 if (op == TOKplusplus || | |
| 4403 op == TOKminusminus || | |
| 4404 op == TOKassign || | |
| 4405 op == TOKaddass || | |
| 4406 op == TOKminass || | |
| 4407 op == TOKcatass || | |
| 4408 op == TOKmulass || | |
| 4409 op == TOKdivass || | |
| 4410 op == TOKmodass || | |
| 4411 op == TOKshlass || | |
| 4412 op == TOKshrass || | |
| 4413 op == TOKushrass || | |
| 4414 op == TOKandass || | |
| 4415 op == TOKorass || | |
| 4416 op == TOKxorass || | |
| 4417 op == TOKin || | |
| 4418 op == TOKremove) | |
| 4419 return 1; | |
| 4420 return Expression::checkSideEffect(flag); | |
| 4421 } | |
| 4422 | |
| 4423 void BinExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4424 { | |
| 4425 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 4426 buf->writeByte(' '); | |
| 4427 buf->writestring(Token::toChars(op)); | |
| 4428 buf->writeByte(' '); | |
| 4429 expToCBuffer(buf, hgs, e2, (enum PREC)(precedence[op] + 1)); | |
| 4430 } | |
| 4431 | |
| 4432 int BinExp::isunsigned() | |
| 4433 { | |
| 4434 return e1->type->isunsigned() || e2->type->isunsigned(); | |
| 4435 } | |
| 4436 | |
| 4437 void BinExp::incompatibleTypes() | |
| 4438 { | |
| 4439 error("incompatible types for ((%s) %s (%s)): '%s' and '%s'", | |
| 4440 e1->toChars(), Token::toChars(op), e2->toChars(), | |
| 4441 e1->type->toChars(), e2->type->toChars()); | |
| 4442 } | |
| 4443 | |
| 4444 /************************************************************/ | |
| 4445 | |
| 4446 CompileExp::CompileExp(Loc loc, Expression *e) | |
| 4447 : UnaExp(loc, TOKmixin, sizeof(CompileExp), e) | |
| 4448 { | |
| 4449 } | |
| 4450 | |
| 4451 Expression *CompileExp::semantic(Scope *sc) | |
| 4452 { | |
| 4453 #if LOGSEMANTIC | |
| 4454 printf("CompileExp::semantic('%s')\n", toChars()); | |
| 4455 #endif | |
| 4456 UnaExp::semantic(sc); | |
| 4457 e1 = resolveProperties(sc, e1); | |
| 4458 e1 = e1->optimize(WANTvalue | WANTinterpret); | |
| 4459 if (e1->op != TOKstring) | |
| 4460 { error("argument to mixin must be a string, not (%s)", e1->toChars()); | |
| 4461 type = Type::terror; | |
| 4462 return this; | |
| 4463 } | |
| 4464 StringExp *se = (StringExp *)e1; | |
| 4465 se = se->toUTF8(sc); | |
| 4466 Parser p(sc->module, (unsigned char *)se->string, se->len, 0); | |
| 4467 p.loc = loc; | |
| 4468 p.nextToken(); | |
| 4469 Expression *e = p.parseExpression(); | |
| 4470 if (p.token.value != TOKeof) | |
| 4471 error("incomplete mixin expression (%s)", se->toChars()); | |
| 4472 return e->semantic(sc); | |
| 4473 } | |
| 4474 | |
| 4475 void CompileExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4476 { | |
| 4477 buf->writestring("mixin("); | |
| 4478 expToCBuffer(buf, hgs, e1, PREC_assign); | |
| 4479 buf->writeByte(')'); | |
| 4480 } | |
| 4481 | |
| 4482 /************************************************************/ | |
| 4483 | |
| 4484 FileExp::FileExp(Loc loc, Expression *e) | |
| 4485 : UnaExp(loc, TOKmixin, sizeof(FileExp), e) | |
| 4486 { | |
| 4487 } | |
| 4488 | |
| 4489 Expression *FileExp::semantic(Scope *sc) | |
| 4490 { char *name; | |
| 4491 StringExp *se; | |
| 4492 | |
| 4493 #if LOGSEMANTIC | |
| 4494 printf("FileExp::semantic('%s')\n", toChars()); | |
| 4495 #endif | |
| 4496 UnaExp::semantic(sc); | |
| 4497 e1 = resolveProperties(sc, e1); | |
| 4498 e1 = e1->optimize(WANTvalue); | |
| 4499 if (e1->op != TOKstring) | |
| 4500 { error("file name argument must be a string, not (%s)", e1->toChars()); | |
| 4501 goto Lerror; | |
| 4502 } | |
| 4503 se = (StringExp *)e1; | |
| 4504 se = se->toUTF8(sc); | |
| 4505 name = (char *)se->string; | |
| 4506 | |
| 4507 if (!global.params.fileImppath) | |
| 4508 { error("need -Jpath switch to import text file %s", name); | |
| 4509 goto Lerror; | |
| 4510 } | |
| 4511 | |
| 4512 if (name != FileName::name(name)) | |
| 4513 { error("use -Jpath switch to provide path for filename %s", name); | |
| 4514 goto Lerror; | |
| 4515 } | |
| 4516 | |
| 4517 name = FileName::searchPath(global.filePath, name, 0); | |
| 4518 if (!name) | |
| 4519 { error("file %s cannot be found, check -Jpath", se->toChars()); | |
| 4520 goto Lerror; | |
| 4521 } | |
| 4522 | |
| 4523 if (global.params.verbose) | |
| 4524 printf("file %s\t(%s)\n", se->string, name); | |
| 4525 | |
| 4526 { File f(name); | |
| 4527 if (f.read()) | |
| 4528 { error("cannot read file %s", f.toChars()); | |
| 4529 goto Lerror; | |
| 4530 } | |
| 4531 else | |
| 4532 { | |
| 4533 f.ref = 1; | |
| 4534 se = new StringExp(loc, f.buffer, f.len); | |
| 4535 } | |
| 4536 } | |
| 4537 Lret: | |
| 4538 return se->semantic(sc); | |
| 4539 | |
| 4540 Lerror: | |
| 4541 se = new StringExp(loc, ""); | |
| 4542 goto Lret; | |
| 4543 } | |
| 4544 | |
| 4545 void FileExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4546 { | |
| 4547 buf->writestring("import("); | |
| 4548 expToCBuffer(buf, hgs, e1, PREC_assign); | |
| 4549 buf->writeByte(')'); | |
| 4550 } | |
| 4551 | |
| 4552 /************************************************************/ | |
| 4553 | |
| 4554 AssertExp::AssertExp(Loc loc, Expression *e, Expression *msg) | |
| 4555 : UnaExp(loc, TOKassert, sizeof(AssertExp), e) | |
| 4556 { | |
| 4557 this->msg = msg; | |
| 4558 } | |
| 4559 | |
| 4560 Expression *AssertExp::syntaxCopy() | |
| 4561 { | |
| 4562 AssertExp *ae = new AssertExp(loc, e1->syntaxCopy(), | |
| 4563 msg ? msg->syntaxCopy() : NULL); | |
| 4564 return ae; | |
| 4565 } | |
| 4566 | |
| 4567 Expression *AssertExp::semantic(Scope *sc) | |
| 4568 { | |
| 4569 #if LOGSEMANTIC | |
| 4570 printf("AssertExp::semantic('%s')\n", toChars()); | |
| 4571 #endif | |
| 4572 UnaExp::semantic(sc); | |
| 4573 e1 = resolveProperties(sc, e1); | |
| 4574 // BUG: see if we can do compile time elimination of the Assert | |
| 4575 e1 = e1->optimize(WANTvalue); | |
| 4576 e1 = e1->checkToBoolean(); | |
| 4577 if (msg) | |
| 4578 { | |
| 4579 msg = msg->semantic(sc); | |
| 4580 msg = resolveProperties(sc, msg); | |
| 4581 msg = msg->implicitCastTo(sc, Type::tchar->arrayOf()); | |
| 4582 msg = msg->optimize(WANTvalue); | |
| 4583 } | |
| 4584 if (e1->isBool(FALSE)) | |
| 4585 { | |
| 4586 FuncDeclaration *fd = sc->parent->isFuncDeclaration(); | |
| 4587 fd->hasReturnExp |= 4; | |
| 4588 | |
| 4589 if (!global.params.useAssert) | |
| 4590 { Expression *e = new HaltExp(loc); | |
| 4591 e = e->semantic(sc); | |
| 4592 return e; | |
| 4593 } | |
| 4594 } | |
| 4595 type = Type::tvoid; | |
| 4596 return this; | |
| 4597 } | |
| 4598 | |
| 4599 int AssertExp::checkSideEffect(int flag) | |
| 4600 { | |
| 4601 return 1; | |
| 4602 } | |
| 4603 | |
| 4604 void AssertExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4605 { | |
| 4606 buf->writestring("assert("); | |
| 4607 expToCBuffer(buf, hgs, e1, PREC_assign); | |
| 4608 if (msg) | |
| 4609 { | |
| 4610 buf->writeByte(','); | |
| 4611 expToCBuffer(buf, hgs, msg, PREC_assign); | |
| 4612 } | |
| 4613 buf->writeByte(')'); | |
| 4614 } | |
| 4615 | |
| 4616 /************************************************************/ | |
| 4617 | |
| 4618 DotIdExp::DotIdExp(Loc loc, Expression *e, Identifier *ident) | |
| 4619 : UnaExp(loc, TOKdot, sizeof(DotIdExp), e) | |
| 4620 { | |
| 4621 this->ident = ident; | |
| 4622 } | |
| 4623 | |
| 4624 Expression *DotIdExp::semantic(Scope *sc) | |
| 4625 { Expression *e; | |
| 4626 Expression *eleft; | |
| 4627 Expression *eright; | |
| 4628 | |
| 4629 #if LOGSEMANTIC | |
| 4630 printf("DotIdExp::semantic(this = %p, '%s')\n", this, toChars()); | |
| 4631 //printf("e1->op = %d, '%s'\n", e1->op, Token::toChars(e1->op)); | |
| 4632 #endif | |
| 4633 | |
| 4634 //{ static int z; fflush(stdout); if (++z == 10) *(char*)0=0; } | |
| 4635 | |
| 4636 #if 0 | |
| 4637 /* Don't do semantic analysis if we'll be converting | |
| 4638 * it to a string. | |
| 4639 */ | |
| 4640 if (ident == Id::stringof) | |
| 4641 { char *s = e1->toChars(); | |
| 4642 e = new StringExp(loc, s, strlen(s), 'c'); | |
| 4643 e = e->semantic(sc); | |
| 4644 return e; | |
| 4645 } | |
| 4646 #endif | |
| 4647 | |
| 4648 /* Special case: rewrite this.id and super.id | |
| 4649 * to be classtype.id and baseclasstype.id | |
| 4650 * if we have no this pointer. | |
| 4651 */ | |
| 4652 if ((e1->op == TOKthis || e1->op == TOKsuper) && !hasThis(sc)) | |
| 4653 { ClassDeclaration *cd; | |
| 4654 StructDeclaration *sd; | |
| 4655 AggregateDeclaration *ad; | |
| 4656 | |
| 4657 ad = sc->getStructClassScope(); | |
| 4658 if (ad) | |
| 4659 { | |
| 4660 cd = ad->isClassDeclaration(); | |
| 4661 if (cd) | |
| 4662 { | |
| 4663 if (e1->op == TOKthis) | |
| 4664 { | |
| 4665 e = new TypeDotIdExp(loc, cd->type, ident); | |
| 4666 return e->semantic(sc); | |
| 4667 } | |
| 4668 else if (cd->baseClass && e1->op == TOKsuper) | |
| 4669 { | |
| 4670 e = new TypeDotIdExp(loc, cd->baseClass->type, ident); | |
| 4671 return e->semantic(sc); | |
| 4672 } | |
| 4673 } | |
| 4674 else | |
| 4675 { | |
| 4676 sd = ad->isStructDeclaration(); | |
| 4677 if (sd) | |
| 4678 { | |
| 4679 if (e1->op == TOKthis) | |
| 4680 { | |
| 4681 e = new TypeDotIdExp(loc, sd->type, ident); | |
| 4682 return e->semantic(sc); | |
| 4683 } | |
| 4684 } | |
| 4685 } | |
| 4686 } | |
| 4687 } | |
| 4688 | |
| 4689 UnaExp::semantic(sc); | |
| 4690 | |
| 4691 if (e1->op == TOKdotexp) | |
| 4692 { | |
| 4693 DotExp *de = (DotExp *)e1; | |
| 4694 eleft = de->e1; | |
| 4695 eright = de->e2; | |
| 4696 } | |
| 4697 else | |
| 4698 { | |
| 4699 e1 = resolveProperties(sc, e1); | |
| 4700 eleft = NULL; | |
| 4701 eright = e1; | |
| 4702 } | |
| 4703 | |
| 4704 if (e1->op == TOKtuple && ident == Id::length) | |
| 4705 { | |
| 4706 TupleExp *te = (TupleExp *)e1; | |
| 4707 e = new IntegerExp(loc, te->exps->dim, Type::tsize_t); | |
| 4708 return e; | |
| 4709 } | |
| 4710 | |
| 4711 if (eright->op == TOKimport) // also used for template alias's | |
| 4712 { | |
| 4713 Dsymbol *s; | |
| 4714 ScopeExp *ie = (ScopeExp *)eright; | |
| 4715 | |
| 4716 s = ie->sds->search(loc, ident, 0); | |
| 4717 if (s) | |
| 4718 { | |
| 4719 s = s->toAlias(); | |
| 4720 checkDeprecated(sc, s); | |
| 4721 | |
| 4722 EnumMember *em = s->isEnumMember(); | |
| 4723 if (em) | |
| 4724 { | |
| 4725 e = em->value; | |
| 4726 e = e->semantic(sc); | |
| 4727 return e; | |
| 4728 } | |
| 4729 | |
| 4730 VarDeclaration *v = s->isVarDeclaration(); | |
| 4731 if (v) | |
| 4732 { | |
| 4733 //printf("DotIdExp:: Identifier '%s' is a variable, type '%s'\n", toChars(), v->type->toChars()); | |
| 4734 if (v->inuse) | |
| 4735 { | |
| 4736 error("circular reference to '%s'", v->toChars()); | |
| 4737 type = Type::tint32; | |
| 4738 return this; | |
| 4739 } | |
| 4740 type = v->type; | |
| 4741 if (v->isConst()) | |
| 4742 { | |
| 4743 if (v->init) | |
| 4744 { | |
| 4745 ExpInitializer *ei = v->init->isExpInitializer(); | |
| 4746 if (ei) | |
| 4747 { | |
| 4748 //printf("\tei: %p (%s)\n", ei->exp, ei->exp->toChars()); | |
| 4749 //ei->exp = ei->exp->semantic(sc); | |
| 4750 if (ei->exp->type == type) | |
| 4751 { | |
| 4752 e = ei->exp->copy(); // make copy so we can change loc | |
| 4753 e->loc = loc; | |
| 4754 return e; | |
| 4755 } | |
| 4756 } | |
| 4757 } | |
| 4758 else if (type->isscalar()) | |
| 4759 { | |
| 4760 e = type->defaultInit(); | |
| 4761 e->loc = loc; | |
| 4762 return e; | |
| 4763 } | |
| 4764 } | |
| 4765 if (v->needThis()) | |
| 4766 { | |
| 4767 if (!eleft) | |
| 4768 eleft = new ThisExp(loc); | |
| 4769 e = new DotVarExp(loc, eleft, v); | |
| 4770 e = e->semantic(sc); | |
| 4771 } | |
| 4772 else | |
| 4773 { | |
| 4774 e = new VarExp(loc, v); | |
| 4775 if (eleft) | |
| 4776 { e = new CommaExp(loc, eleft, e); | |
| 4777 e->type = v->type; | |
| 4778 } | |
| 4779 } | |
| 4780 return e->deref(); | |
| 4781 } | |
| 4782 | |
| 4783 FuncDeclaration *f = s->isFuncDeclaration(); | |
| 4784 if (f) | |
| 4785 { | |
| 4786 //printf("it's a function\n"); | |
| 4787 if (f->needThis()) | |
| 4788 { | |
| 4789 if (!eleft) | |
| 4790 eleft = new ThisExp(loc); | |
| 4791 e = new DotVarExp(loc, eleft, f); | |
| 4792 e = e->semantic(sc); | |
| 4793 } | |
| 4794 else | |
| 4795 { | |
| 4796 e = new VarExp(loc, f); | |
| 4797 if (eleft) | |
| 4798 { e = new CommaExp(loc, eleft, e); | |
| 4799 e->type = f->type; | |
| 4800 } | |
| 4801 } | |
| 4802 return e; | |
| 4803 } | |
| 4804 | |
| 4805 Type *t = s->getType(); | |
| 4806 if (t) | |
| 4807 { | |
| 4808 return new TypeExp(loc, t); | |
| 4809 } | |
| 4810 | |
| 4811 ScopeDsymbol *sds = s->isScopeDsymbol(); | |
| 4812 if (sds) | |
| 4813 { | |
| 4814 //printf("it's a ScopeDsymbol\n"); | |
| 4815 e = new ScopeExp(loc, sds); | |
| 4816 e = e->semantic(sc); | |
| 4817 if (eleft) | |
| 4818 e = new DotExp(loc, eleft, e); | |
| 4819 return e; | |
| 4820 } | |
| 4821 | |
| 4822 Import *imp = s->isImport(); | |
| 4823 if (imp) | |
| 4824 { | |
| 4825 ScopeExp *ie; | |
| 4826 | |
| 4827 ie = new ScopeExp(loc, imp->pkg); | |
| 4828 return ie->semantic(sc); | |
| 4829 } | |
| 4830 | |
| 4831 // BUG: handle other cases like in IdentifierExp::semantic() | |
| 4832 #ifdef DEBUG | |
| 4833 printf("s = '%s', kind = '%s'\n", s->toChars(), s->kind()); | |
| 4834 #endif | |
| 4835 assert(0); | |
| 4836 } | |
| 4837 else if (ident == Id::stringof) | |
| 4838 { char *s = ie->toChars(); | |
| 4839 e = new StringExp(loc, s, strlen(s), 'c'); | |
| 4840 e = e->semantic(sc); | |
| 4841 return e; | |
| 4842 } | |
| 4843 error("undefined identifier %s", toChars()); | |
| 4844 type = Type::tvoid; | |
| 4845 return this; | |
| 4846 } | |
| 4847 else if (e1->type->ty == Tpointer && | |
| 4848 ident != Id::init && ident != Id::__sizeof && | |
| 4849 ident != Id::alignof && ident != Id::offsetof && | |
| 4850 ident != Id::mangleof && ident != Id::stringof) | |
| 4851 { | |
| 4852 e = new PtrExp(loc, e1); | |
| 4853 e->type = e1->type->next; | |
| 4854 return e->type->dotExp(sc, e, ident); | |
| 4855 } | |
| 4856 else | |
| 4857 { | |
| 4858 e = e1->type->dotExp(sc, e1, ident); | |
| 4859 e = e->semantic(sc); | |
| 4860 return e; | |
| 4861 } | |
| 4862 } | |
| 4863 | |
| 4864 void DotIdExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4865 { | |
| 4866 //printf("DotIdExp::toCBuffer()\n"); | |
| 4867 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 4868 buf->writeByte('.'); | |
| 4869 buf->writestring(ident->toChars()); | |
| 4870 } | |
| 4871 | |
| 4872 /********************** DotTemplateExp ***********************************/ | |
| 4873 | |
| 4874 // Mainly just a placeholder | |
| 4875 | |
| 4876 DotTemplateExp::DotTemplateExp(Loc loc, Expression *e, TemplateDeclaration *td) | |
| 4877 : UnaExp(loc, TOKdottd, sizeof(DotTemplateExp), e) | |
| 4878 | |
| 4879 { | |
| 4880 this->td = td; | |
| 4881 } | |
| 4882 | |
| 4883 void DotTemplateExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4884 { | |
| 4885 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 4886 buf->writeByte('.'); | |
| 4887 buf->writestring(td->toChars()); | |
| 4888 } | |
| 4889 | |
| 4890 | |
| 4891 /************************************************************/ | |
| 4892 | |
| 4893 DotVarExp::DotVarExp(Loc loc, Expression *e, Declaration *v) | |
| 4894 : UnaExp(loc, TOKdotvar, sizeof(DotVarExp), e) | |
| 4895 { | |
| 4896 //printf("DotVarExp()\n"); | |
| 4897 this->var = v; | |
| 4898 } | |
| 4899 | |
| 4900 Expression *DotVarExp::semantic(Scope *sc) | |
| 4901 { | |
| 4902 #if LOGSEMANTIC | |
| 4903 printf("DotVarExp::semantic('%s')\n", toChars()); | |
| 4904 #endif | |
| 4905 if (!type) | |
| 4906 { | |
| 4907 var = var->toAlias()->isDeclaration(); | |
| 4908 | |
| 4909 TupleDeclaration *tup = var->isTupleDeclaration(); | |
| 4910 if (tup) | |
| 4911 { /* Replace: | |
| 4912 * e1.tuple(a, b, c) | |
| 4913 * with: | |
| 4914 * tuple(e1.a, e1.b, e1.c) | |
| 4915 */ | |
| 4916 Expressions *exps = new Expressions; | |
| 4917 | |
| 4918 exps->reserve(tup->objects->dim); | |
| 4919 for (size_t i = 0; i < tup->objects->dim; i++) | |
| 4920 { Object *o = (Object *)tup->objects->data[i]; | |
| 4921 if (o->dyncast() != DYNCAST_EXPRESSION) | |
| 4922 { | |
| 4923 error("%s is not an expression", o->toChars()); | |
| 4924 } | |
| 4925 else | |
| 4926 { | |
| 4927 Expression *e = (Expression *)o; | |
| 4928 if (e->op != TOKdsymbol) | |
| 4929 error("%s is not a member", e->toChars()); | |
| 4930 else | |
| 4931 { DsymbolExp *ve = (DsymbolExp *)e; | |
| 4932 | |
| 4933 e = new DotVarExp(loc, e1, ve->s->isDeclaration()); | |
| 4934 exps->push(e); | |
| 4935 } | |
| 4936 } | |
| 4937 } | |
| 4938 Expression *e = new TupleExp(loc, exps); | |
| 4939 e = e->semantic(sc); | |
| 4940 return e; | |
| 4941 } | |
| 4942 | |
| 4943 e1 = e1->semantic(sc); | |
| 4944 type = var->type; | |
| 4945 if (!type && global.errors) | |
| 4946 { // var is goofed up, just return 0 | |
| 4947 return new IntegerExp(0); | |
| 4948 } | |
| 4949 assert(type); | |
| 4950 | |
| 4951 if (!var->isFuncDeclaration()) // for functions, do checks after overload resolution | |
| 4952 { | |
| 4953 AggregateDeclaration *ad = var->toParent()->isAggregateDeclaration(); | |
| 4954 L1: | |
|
35
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
4955 Type *t = e1->type->toBasetype(); |
| 1 | 4956 |
| 4957 if (ad && | |
| 4958 !(t->ty == Tpointer && t->next->ty == Tstruct && | |
| 4959 ((TypeStruct *)t->next)->sym == ad) | |
| 4960 && | |
| 4961 !(t->ty == Tstruct && | |
| 4962 ((TypeStruct *)t)->sym == ad) | |
| 4963 ) | |
| 4964 { | |
| 4965 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 4966 ClassDeclaration *tcd = t->isClassHandle(); | |
| 4967 | |
| 4968 if (!cd || !tcd || | |
| 4969 !(tcd == cd || cd->isBaseOf(tcd, NULL)) | |
| 4970 ) | |
| 4971 { | |
| 4972 if (tcd && tcd->isNested()) | |
| 4973 { // Try again with outer scope | |
| 4974 | |
| 4975 e1 = new DotVarExp(loc, e1, tcd->vthis); | |
| 4976 e1 = e1->semantic(sc); | |
| 4977 | |
| 4978 // Skip over nested functions, and get the enclosing | |
| 4979 // class type. | |
| 4980 Dsymbol *s = tcd->toParent(); | |
| 4981 while (s && s->isFuncDeclaration()) | |
| 4982 { FuncDeclaration *f = s->isFuncDeclaration(); | |
| 4983 if (f->vthis) | |
| 4984 { | |
| 4985 e1 = new VarExp(loc, f->vthis); | |
| 4986 } | |
| 4987 s = s->toParent(); | |
| 4988 } | |
| 4989 if (s && s->isClassDeclaration()) | |
| 4990 e1->type = s->isClassDeclaration()->type; | |
| 4991 | |
| 4992 goto L1; | |
| 4993 } | |
| 4994 #ifdef DEBUG | |
| 4995 printf("2: "); | |
| 4996 #endif | |
| 4997 error("this for %s needs to be type %s not type %s", | |
| 4998 var->toChars(), ad->toChars(), t->toChars()); | |
| 4999 } | |
| 5000 } | |
| 5001 accessCheck(loc, sc, e1, var); | |
| 5002 } | |
| 5003 } | |
| 5004 //printf("-DotVarExp::semantic('%s')\n", toChars()); | |
| 5005 return this; | |
| 5006 } | |
| 5007 | |
| 5008 Expression *DotVarExp::toLvalue(Scope *sc, Expression *e) | |
| 5009 { | |
| 5010 //printf("DotVarExp::toLvalue(%s)\n", toChars()); | |
| 5011 return this; | |
| 5012 } | |
| 5013 | |
| 5014 Expression *DotVarExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 5015 { | |
| 5016 //printf("DotVarExp::modifiableLvalue(%s)\n", toChars()); | |
| 5017 | |
| 5018 if (var->isCtorinit()) | |
| 5019 { // It's only modifiable if inside the right constructor | |
| 5020 Dsymbol *s = sc->func; | |
| 5021 while (1) | |
| 5022 { | |
| 5023 FuncDeclaration *fd = NULL; | |
| 5024 if (s) | |
| 5025 fd = s->isFuncDeclaration(); | |
| 5026 if (fd && | |
| 5027 ((fd->isCtorDeclaration() && var->storage_class & STCfield) || | |
| 5028 (fd->isStaticCtorDeclaration() && !(var->storage_class & STCfield))) && | |
| 5029 fd->toParent() == var->toParent() && | |
| 5030 e1->op == TOKthis | |
| 5031 ) | |
| 5032 { | |
| 5033 VarDeclaration *v = var->isVarDeclaration(); | |
| 5034 assert(v); | |
| 5035 v->ctorinit = 1; | |
| 5036 //printf("setting ctorinit\n"); | |
| 5037 } | |
| 5038 else | |
| 5039 { | |
| 5040 if (s) | |
| 5041 { s = s->toParent2(); | |
| 5042 continue; | |
| 5043 } | |
| 5044 else | |
| 5045 { | |
| 5046 const char *p = var->isStatic() ? "static " : ""; | |
| 5047 error("can only initialize %sconst member %s inside %sconstructor", | |
| 5048 p, var->toChars(), p); | |
| 5049 } | |
| 5050 } | |
| 5051 break; | |
| 5052 } | |
| 5053 } | |
| 5054 return this; | |
| 5055 } | |
| 5056 | |
| 5057 void DotVarExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5058 { | |
| 5059 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 5060 buf->writeByte('.'); | |
| 5061 buf->writestring(var->toChars()); | |
| 5062 } | |
| 5063 | |
| 5064 /************************************************************/ | |
| 5065 | |
| 5066 /* Things like: | |
| 5067 * foo.bar!(args) | |
| 5068 */ | |
| 5069 | |
| 5070 DotTemplateInstanceExp::DotTemplateInstanceExp(Loc loc, Expression *e, TemplateInstance *ti) | |
| 5071 : UnaExp(loc, TOKdotti, sizeof(DotTemplateInstanceExp), e) | |
| 5072 { | |
| 5073 //printf("DotTemplateInstanceExp()\n"); | |
| 5074 this->ti = ti; | |
| 5075 } | |
| 5076 | |
| 5077 Expression *DotTemplateInstanceExp::syntaxCopy() | |
| 5078 { | |
| 5079 DotTemplateInstanceExp *de = new DotTemplateInstanceExp(loc, | |
| 5080 e1->syntaxCopy(), | |
| 5081 (TemplateInstance *)ti->syntaxCopy(NULL)); | |
| 5082 return de; | |
| 5083 } | |
| 5084 | |
| 5085 Expression *DotTemplateInstanceExp::semantic(Scope *sc) | |
| 5086 { Dsymbol *s; | |
| 5087 Dsymbol *s2; | |
| 5088 TemplateDeclaration *td; | |
| 5089 Expression *e; | |
| 5090 Identifier *id; | |
| 5091 Type *t1; | |
| 5092 Expression *eleft = NULL; | |
| 5093 Expression *eright; | |
| 5094 | |
| 5095 #if LOGSEMANTIC | |
| 5096 printf("DotTemplateInstanceExp::semantic('%s')\n", toChars()); | |
| 5097 #endif | |
| 5098 //e1->print(); | |
| 5099 //print(); | |
| 5100 e1 = e1->semantic(sc); | |
| 5101 t1 = e1->type; | |
| 5102 if (t1) | |
| 5103 t1 = t1->toBasetype(); | |
| 5104 //t1->print(); | |
| 5105 if (e1->op == TOKdotexp) | |
| 5106 { DotExp *de = (DotExp *)e1; | |
| 5107 eleft = de->e1; | |
| 5108 eright = de->e2; | |
| 5109 } | |
| 5110 else | |
| 5111 { eleft = NULL; | |
| 5112 eright = e1; | |
| 5113 } | |
| 5114 if (eright->op == TOKimport) | |
| 5115 { | |
| 5116 s = ((ScopeExp *)eright)->sds; | |
| 5117 } | |
| 5118 else if (e1->op == TOKtype) | |
| 5119 { | |
| 5120 s = t1->isClassHandle(); | |
| 5121 if (!s) | |
| 5122 { if (t1->ty == Tstruct) | |
| 5123 s = ((TypeStruct *)t1)->sym; | |
| 5124 else | |
| 5125 goto L1; | |
| 5126 } | |
| 5127 } | |
| 5128 else if (t1 && (t1->ty == Tstruct || t1->ty == Tclass)) | |
| 5129 { | |
| 5130 s = t1->toDsymbol(sc); | |
| 5131 eleft = e1; | |
| 5132 } | |
| 5133 else if (t1 && t1->ty == Tpointer) | |
| 5134 { | |
| 5135 t1 = t1->next->toBasetype(); | |
| 5136 if (t1->ty != Tstruct) | |
| 5137 goto L1; | |
| 5138 s = t1->toDsymbol(sc); | |
| 5139 eleft = e1; | |
| 5140 } | |
| 5141 else | |
| 5142 { | |
| 5143 L1: | |
| 5144 error("template %s is not a member of %s", ti->toChars(), e1->toChars()); | |
| 5145 goto Lerr; | |
| 5146 } | |
| 5147 | |
| 5148 assert(s); | |
| 5149 id = ti->name; | |
| 5150 s2 = s->search(loc, id, 0); | |
| 5151 if (!s2) | |
| 5152 { error("template identifier %s is not a member of %s %s", id->toChars(), s->kind(), s->ident->toChars()); | |
| 5153 goto Lerr; | |
| 5154 } | |
| 5155 s = s2; | |
| 5156 s->semantic(sc); | |
| 5157 s = s->toAlias(); | |
| 5158 td = s->isTemplateDeclaration(); | |
| 5159 if (!td) | |
| 5160 { | |
| 5161 error("%s is not a template", id->toChars()); | |
| 5162 goto Lerr; | |
| 5163 } | |
| 5164 if (global.errors) | |
| 5165 goto Lerr; | |
| 5166 | |
| 5167 ti->tempdecl = td; | |
| 5168 | |
| 5169 if (eleft) | |
| 5170 { Declaration *v; | |
| 5171 | |
| 5172 ti->semantic(sc); | |
| 5173 s = ti->inst->toAlias(); | |
| 5174 v = s->isDeclaration(); | |
| 5175 if (v) | |
| 5176 { e = new DotVarExp(loc, eleft, v); | |
| 5177 e = e->semantic(sc); | |
| 5178 return e; | |
| 5179 } | |
| 5180 } | |
| 5181 | |
| 5182 e = new ScopeExp(loc, ti); | |
| 5183 if (eleft) | |
| 5184 { | |
| 5185 e = new DotExp(loc, eleft, e); | |
| 5186 } | |
| 5187 e = e->semantic(sc); | |
| 5188 return e; | |
| 5189 | |
| 5190 Lerr: | |
| 5191 return new IntegerExp(0); | |
| 5192 } | |
| 5193 | |
| 5194 void DotTemplateInstanceExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5195 { | |
| 5196 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 5197 buf->writeByte('.'); | |
| 5198 ti->toCBuffer(buf, hgs); | |
| 5199 } | |
| 5200 | |
| 5201 /************************************************************/ | |
| 5202 | |
| 5203 DelegateExp::DelegateExp(Loc loc, Expression *e, FuncDeclaration *f) | |
| 5204 : UnaExp(loc, TOKdelegate, sizeof(DelegateExp), e) | |
| 5205 { | |
| 5206 this->func = f; | |
| 5207 } | |
| 5208 | |
| 5209 Expression *DelegateExp::semantic(Scope *sc) | |
| 5210 { | |
| 5211 #if LOGSEMANTIC | |
| 5212 printf("DelegateExp::semantic('%s')\n", toChars()); | |
| 5213 #endif | |
| 5214 if (!type) | |
| 5215 { | |
| 5216 e1 = e1->semantic(sc); | |
| 5217 type = new TypeDelegate(func->type); | |
| 5218 type = type->semantic(loc, sc); | |
| 5219 //----------------- | |
| 5220 /* For func, we need to get the | |
| 5221 * right 'this' pointer if func is in an outer class, but our | |
| 5222 * existing 'this' pointer is in an inner class. | |
| 5223 * This code is analogous to that used for variables | |
| 5224 * in DotVarExp::semantic(). | |
| 5225 */ | |
| 5226 AggregateDeclaration *ad = func->toParent()->isAggregateDeclaration(); | |
| 5227 L10: | |
| 5228 Type *t = e1->type; | |
| 5229 if (func->needThis() && ad && | |
| 5230 !(t->ty == Tpointer && t->next->ty == Tstruct && | |
| 5231 ((TypeStruct *)t->next)->sym == ad) && | |
| 5232 !(t->ty == Tstruct && ((TypeStruct *)t)->sym == ad) | |
| 5233 ) | |
| 5234 { | |
| 5235 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 5236 ClassDeclaration *tcd = t->isClassHandle(); | |
| 5237 | |
| 5238 if (!cd || !tcd || | |
| 5239 !(tcd == cd || cd->isBaseOf(tcd, NULL)) | |
| 5240 ) | |
| 5241 { | |
| 5242 if (tcd && tcd->isNested()) | |
| 5243 { // Try again with outer scope | |
| 5244 | |
| 5245 e1 = new DotVarExp(loc, e1, tcd->vthis); | |
| 5246 e1 = e1->semantic(sc); | |
| 5247 goto L10; | |
| 5248 } | |
| 5249 #ifdef DEBUG | |
| 5250 printf("3: "); | |
| 5251 #endif | |
| 5252 error("this for %s needs to be type %s not type %s", | |
| 5253 func->toChars(), ad->toChars(), t->toChars()); | |
| 5254 } | |
| 5255 } | |
| 5256 //----------------- | |
| 5257 } | |
| 5258 return this; | |
| 5259 } | |
| 5260 | |
| 5261 void DelegateExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5262 { | |
| 5263 buf->writeByte('&'); | |
| 5264 if (!func->isNested()) | |
| 5265 { | |
| 5266 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 5267 buf->writeByte('.'); | |
| 5268 } | |
| 5269 buf->writestring(func->toChars()); | |
| 5270 } | |
| 5271 | |
| 5272 /************************************************************/ | |
| 5273 | |
| 5274 DotTypeExp::DotTypeExp(Loc loc, Expression *e, Dsymbol *s) | |
| 5275 : UnaExp(loc, TOKdottype, sizeof(DotTypeExp), e) | |
| 5276 { | |
| 5277 this->sym = s; | |
| 5278 this->type = s->getType(); | |
| 5279 } | |
| 5280 | |
| 5281 Expression *DotTypeExp::semantic(Scope *sc) | |
| 5282 { | |
| 5283 #if LOGSEMANTIC | |
| 5284 printf("DotTypeExp::semantic('%s')\n", toChars()); | |
| 5285 #endif | |
| 5286 UnaExp::semantic(sc); | |
| 5287 return this; | |
| 5288 } | |
| 5289 | |
| 5290 void DotTypeExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5291 { | |
| 5292 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 5293 buf->writeByte('.'); | |
| 5294 buf->writestring(sym->toChars()); | |
| 5295 } | |
| 5296 | |
| 5297 /************************************************************/ | |
| 5298 | |
| 5299 CallExp::CallExp(Loc loc, Expression *e, Expressions *exps) | |
| 5300 : UnaExp(loc, TOKcall, sizeof(CallExp), e) | |
| 5301 { | |
| 5302 this->arguments = exps; | |
| 5303 } | |
| 5304 | |
| 5305 CallExp::CallExp(Loc loc, Expression *e) | |
| 5306 : UnaExp(loc, TOKcall, sizeof(CallExp), e) | |
| 5307 { | |
| 5308 this->arguments = NULL; | |
| 5309 } | |
| 5310 | |
| 5311 CallExp::CallExp(Loc loc, Expression *e, Expression *earg1) | |
| 5312 : UnaExp(loc, TOKcall, sizeof(CallExp), e) | |
| 5313 { | |
| 5314 Expressions *arguments = new Expressions(); | |
| 5315 arguments->setDim(1); | |
| 5316 arguments->data[0] = (void *)earg1; | |
| 5317 | |
| 5318 this->arguments = arguments; | |
| 5319 } | |
| 5320 | |
| 5321 CallExp::CallExp(Loc loc, Expression *e, Expression *earg1, Expression *earg2) | |
| 5322 : UnaExp(loc, TOKcall, sizeof(CallExp), e) | |
| 5323 { | |
| 5324 Expressions *arguments = new Expressions(); | |
| 5325 arguments->setDim(2); | |
| 5326 arguments->data[0] = (void *)earg1; | |
| 5327 arguments->data[1] = (void *)earg2; | |
| 5328 | |
| 5329 this->arguments = arguments; | |
| 5330 } | |
| 5331 | |
| 5332 Expression *CallExp::syntaxCopy() | |
| 5333 { | |
| 5334 return new CallExp(loc, e1->syntaxCopy(), arraySyntaxCopy(arguments)); | |
| 5335 } | |
| 5336 | |
| 5337 | |
| 5338 Expression *CallExp::semantic(Scope *sc) | |
| 5339 { | |
| 5340 TypeFunction *tf; | |
| 5341 FuncDeclaration *f; | |
| 5342 int i; | |
| 5343 Type *t1; | |
| 5344 int istemp; | |
| 5345 | |
| 5346 #if LOGSEMANTIC | |
| 19 | 5347 printf("CallExp::semantic() %s\n", toChars()); |
| 1 | 5348 #endif |
| 5349 if (type) | |
| 5350 return this; // semantic() already run | |
| 5351 #if 0 | |
| 5352 if (arguments && arguments->dim) | |
| 5353 { | |
| 5354 Expression *earg = (Expression *)arguments->data[0]; | |
| 5355 earg->print(); | |
| 5356 if (earg->type) earg->type->print(); | |
| 5357 } | |
| 5358 #endif | |
| 5359 | |
| 5360 if (e1->op == TOKdelegate) | |
| 5361 { DelegateExp *de = (DelegateExp *)e1; | |
| 5362 | |
| 5363 e1 = new DotVarExp(de->loc, de->e1, de->func); | |
| 5364 return semantic(sc); | |
| 5365 } | |
| 5366 | |
| 5367 /* Transform: | |
| 5368 * array.id(args) into id(array,args) | |
| 5369 * aa.remove(arg) into delete aa[arg] | |
| 5370 */ | |
| 5371 if (e1->op == TOKdot) | |
| 5372 { | |
| 5373 // BUG: we should handle array.a.b.c.e(args) too | |
| 5374 | |
| 5375 DotIdExp *dotid = (DotIdExp *)(e1); | |
| 5376 dotid->e1 = dotid->e1->semantic(sc); | |
| 5377 assert(dotid->e1); | |
| 5378 if (dotid->e1->type) | |
| 5379 { | |
| 5380 TY e1ty = dotid->e1->type->toBasetype()->ty; | |
| 5381 if (e1ty == Taarray && dotid->ident == Id::remove) | |
| 5382 { | |
| 5383 if (!arguments || arguments->dim != 1) | |
| 5384 { error("expected key as argument to aa.remove()"); | |
| 5385 goto Lagain; | |
| 5386 } | |
| 5387 Expression *key = (Expression *)arguments->data[0]; | |
| 5388 key = key->semantic(sc); | |
| 5389 key = resolveProperties(sc, key); | |
| 5390 key->rvalue(); | |
| 5391 | |
| 5392 TypeAArray *taa = (TypeAArray *)dotid->e1->type->toBasetype(); | |
| 5393 key = key->implicitCastTo(sc, taa->index); | |
| 5394 key = key->implicitCastTo(sc, taa->key); | |
| 5395 | |
| 5396 return new RemoveExp(loc, dotid->e1, key); | |
| 5397 } | |
| 5398 else if (e1ty == Tarray || e1ty == Tsarray || e1ty == Taarray) | |
| 5399 { | |
| 5400 if (!arguments) | |
| 5401 arguments = new Expressions(); | |
| 5402 arguments->shift(dotid->e1); | |
| 5403 e1 = new IdentifierExp(dotid->loc, dotid->ident); | |
| 5404 } | |
| 5405 } | |
| 5406 } | |
| 5407 | |
| 5408 istemp = 0; | |
| 5409 Lagain: | |
| 5410 f = NULL; | |
| 5411 if (e1->op == TOKthis || e1->op == TOKsuper) | |
| 5412 { | |
| 5413 // semantic() run later for these | |
| 5414 } | |
| 5415 else | |
| 5416 { | |
| 5417 UnaExp::semantic(sc); | |
| 5418 | |
| 5419 /* Look for e1 being a lazy parameter | |
| 5420 */ | |
| 5421 if (e1->op == TOKvar) | |
| 5422 { VarExp *ve = (VarExp *)e1; | |
| 5423 | |
| 5424 if (ve->var->storage_class & STClazy) | |
| 5425 { | |
| 5426 TypeFunction *tf = new TypeFunction(NULL, ve->var->type, 0, LINKd); | |
| 5427 TypeDelegate *t = new TypeDelegate(tf); | |
| 5428 ve->type = t->semantic(loc, sc); | |
| 5429 } | |
| 5430 } | |
| 5431 | |
| 5432 if (e1->op == TOKimport) | |
| 5433 { // Perhaps this should be moved to ScopeExp::semantic() | |
| 5434 ScopeExp *se = (ScopeExp *)e1; | |
| 5435 e1 = new DsymbolExp(loc, se->sds); | |
| 5436 e1 = e1->semantic(sc); | |
| 5437 } | |
| 5438 #if 1 // patch for #540 by Oskar Linde | |
| 5439 else if (e1->op == TOKdotexp) | |
| 5440 { | |
| 5441 DotExp *de = (DotExp *) e1; | |
| 5442 | |
| 5443 if (de->e2->op == TOKimport) | |
| 5444 { // This should *really* be moved to ScopeExp::semantic() | |
| 5445 ScopeExp *se = (ScopeExp *)de->e2; | |
| 5446 de->e2 = new DsymbolExp(loc, se->sds); | |
| 5447 de->e2 = de->e2->semantic(sc); | |
| 5448 } | |
| 5449 | |
| 5450 if (de->e2->op == TOKtemplate) | |
| 5451 { TemplateExp *te = (TemplateExp *) de->e2; | |
| 5452 e1 = new DotTemplateExp(loc,de->e1,te->td); | |
| 5453 } | |
| 5454 } | |
| 5455 #endif | |
| 5456 } | |
| 5457 | |
| 5458 if (e1->op == TOKcomma) | |
| 5459 { | |
| 5460 CommaExp *ce = (CommaExp *)e1; | |
| 5461 | |
| 5462 e1 = ce->e2; | |
| 5463 e1->type = ce->type; | |
| 5464 ce->e2 = this; | |
| 5465 ce->type = NULL; | |
| 5466 return ce->semantic(sc); | |
| 5467 } | |
| 5468 | |
| 5469 t1 = NULL; | |
| 5470 if (e1->type) | |
| 5471 t1 = e1->type->toBasetype(); | |
| 5472 | |
| 5473 // Check for call operator overload | |
| 5474 if (t1) | |
| 5475 { AggregateDeclaration *ad; | |
| 5476 | |
| 5477 if (t1->ty == Tstruct) | |
| 5478 { | |
| 5479 ad = ((TypeStruct *)t1)->sym; | |
| 5480 if (search_function(ad, Id::call)) | |
| 5481 goto L1; // overload of opCall, therefore it's a call | |
| 19 | 5482 |
| 5483 if (e1->op != TOKtype) | |
| 5484 error("%s %s does not overload ()", ad->kind(), ad->toChars()); | |
| 1 | 5485 /* It's a struct literal |
| 5486 */ | |
| 5487 Expression *e = new StructLiteralExp(loc, (StructDeclaration *)ad, arguments); | |
| 5488 e = e->semantic(sc); | |
|
35
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
5489 e->type = e1->type; // in case e1->type was a typedef |
| 1 | 5490 return e; |
| 5491 } | |
| 5492 else if (t1->ty == Tclass) | |
| 5493 { | |
| 5494 ad = ((TypeClass *)t1)->sym; | |
| 5495 goto L1; | |
| 5496 L1: | |
| 5497 // Rewrite as e1.call(arguments) | |
| 5498 Expression *e = new DotIdExp(loc, e1, Id::call); | |
| 5499 e = new CallExp(loc, e, arguments); | |
| 5500 e = e->semantic(sc); | |
| 5501 return e; | |
| 5502 } | |
| 5503 } | |
| 5504 | |
| 5505 arrayExpressionSemantic(arguments, sc); | |
| 5506 preFunctionArguments(loc, sc, arguments); | |
| 5507 | |
| 5508 if (e1->op == TOKdotvar && t1->ty == Tfunction || | |
| 5509 e1->op == TOKdottd) | |
| 5510 { | |
| 5511 DotVarExp *dve; | |
| 5512 DotTemplateExp *dte; | |
| 5513 AggregateDeclaration *ad; | |
| 5514 UnaExp *ue = (UnaExp *)(e1); | |
| 5515 | |
| 5516 if (e1->op == TOKdotvar) | |
| 5517 { // Do overload resolution | |
| 5518 dve = (DotVarExp *)(e1); | |
| 5519 | |
| 5520 f = dve->var->isFuncDeclaration(); | |
| 5521 assert(f); | |
| 5522 f = f->overloadResolve(loc, arguments); | |
| 5523 | |
| 5524 ad = f->toParent()->isAggregateDeclaration(); | |
| 5525 } | |
| 5526 else | |
| 5527 { dte = (DotTemplateExp *)(e1); | |
| 5528 TemplateDeclaration *td = dte->td; | |
| 5529 assert(td); | |
| 5530 if (!arguments) | |
| 5531 // Should fix deduce() so it works on NULL argument | |
| 5532 arguments = new Expressions(); | |
| 5533 f = td->deduce(sc, loc, NULL, arguments); | |
| 5534 if (!f) | |
| 5535 { type = Type::terror; | |
| 5536 return this; | |
| 5537 } | |
| 5538 ad = td->toParent()->isAggregateDeclaration(); | |
| 5539 } | |
| 5540 /* Now that we have the right function f, we need to get the | |
| 5541 * right 'this' pointer if f is in an outer class, but our | |
| 5542 * existing 'this' pointer is in an inner class. | |
| 5543 * This code is analogous to that used for variables | |
| 5544 * in DotVarExp::semantic(). | |
| 5545 */ | |
| 5546 L10: | |
| 5547 Type *t = ue->e1->type->toBasetype(); | |
| 5548 if (f->needThis() && ad && | |
| 5549 !(t->ty == Tpointer && t->next->ty == Tstruct && | |
| 5550 ((TypeStruct *)t->next)->sym == ad) && | |
| 5551 !(t->ty == Tstruct && ((TypeStruct *)t)->sym == ad) | |
| 5552 ) | |
| 5553 { | |
| 5554 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 5555 ClassDeclaration *tcd = t->isClassHandle(); | |
| 5556 | |
| 5557 if (!cd || !tcd || | |
| 5558 !(tcd == cd || cd->isBaseOf(tcd, NULL)) | |
| 5559 ) | |
| 5560 { | |
| 5561 if (tcd && tcd->isNested()) | |
| 5562 { // Try again with outer scope | |
| 5563 | |
| 5564 ue->e1 = new DotVarExp(loc, ue->e1, tcd->vthis); | |
| 5565 ue->e1 = ue->e1->semantic(sc); | |
| 5566 goto L10; | |
| 5567 } | |
| 5568 #ifdef DEBUG | |
| 5569 printf("1: "); | |
| 5570 #endif | |
| 5571 error("this for %s needs to be type %s not type %s", | |
| 5572 f->toChars(), ad->toChars(), t->toChars()); | |
| 5573 } | |
| 5574 } | |
| 5575 | |
| 5576 checkDeprecated(sc, f); | |
| 5577 accessCheck(loc, sc, ue->e1, f); | |
| 5578 if (!f->needThis()) | |
| 5579 { | |
| 5580 VarExp *ve = new VarExp(loc, f); | |
| 5581 e1 = new CommaExp(loc, ue->e1, ve); | |
| 5582 e1->type = f->type; | |
| 5583 } | |
| 5584 else | |
| 5585 { | |
| 5586 if (e1->op == TOKdotvar) | |
| 5587 dve->var = f; | |
| 5588 else | |
| 5589 e1 = new DotVarExp(loc, dte->e1, f); | |
| 5590 e1->type = f->type; | |
| 5591 | |
| 5592 // See if we need to adjust the 'this' pointer | |
| 5593 AggregateDeclaration *ad = f->isThis(); | |
| 5594 ClassDeclaration *cd = ue->e1->type->isClassHandle(); | |
| 5595 if (ad && cd && ad->isClassDeclaration() && ad != cd && | |
| 5596 ue->e1->op != TOKsuper) | |
| 5597 { | |
| 5598 ue->e1 = ue->e1->castTo(sc, ad->type); //new CastExp(loc, ue->e1, ad->type); | |
| 5599 ue->e1 = ue->e1->semantic(sc); | |
| 5600 } | |
| 5601 } | |
| 5602 t1 = e1->type; | |
| 5603 } | |
| 5604 else if (e1->op == TOKsuper) | |
| 5605 { | |
| 5606 // Base class constructor call | |
| 5607 ClassDeclaration *cd = NULL; | |
| 5608 | |
| 5609 if (sc->func) | |
| 5610 cd = sc->func->toParent()->isClassDeclaration(); | |
| 5611 if (!cd || !cd->baseClass || !sc->func->isCtorDeclaration()) | |
| 5612 { | |
| 5613 error("super class constructor call must be in a constructor"); | |
| 5614 type = Type::terror; | |
| 5615 return this; | |
| 5616 } | |
| 5617 else | |
| 5618 { | |
| 5619 f = cd->baseClass->ctor; | |
| 5620 if (!f) | |
| 5621 { error("no super class constructor for %s", cd->baseClass->toChars()); | |
| 5622 type = Type::terror; | |
| 5623 return this; | |
| 5624 } | |
| 5625 else | |
| 5626 { | |
| 5627 #if 0 | |
| 5628 if (sc->callSuper & (CSXthis | CSXsuper)) | |
| 5629 error("reference to this before super()"); | |
| 5630 #endif | |
| 5631 if (sc->noctor || sc->callSuper & CSXlabel) | |
| 5632 error("constructor calls not allowed in loops or after labels"); | |
| 5633 if (sc->callSuper & (CSXsuper_ctor | CSXthis_ctor)) | |
| 5634 error("multiple constructor calls"); | |
| 5635 sc->callSuper |= CSXany_ctor | CSXsuper_ctor; | |
| 5636 | |
| 5637 f = f->overloadResolve(loc, arguments); | |
| 5638 checkDeprecated(sc, f); | |
| 5639 e1 = new DotVarExp(e1->loc, e1, f); | |
| 5640 e1 = e1->semantic(sc); | |
| 5641 t1 = e1->type; | |
| 5642 } | |
| 5643 } | |
| 5644 } | |
| 5645 else if (e1->op == TOKthis) | |
| 5646 { | |
| 5647 // same class constructor call | |
| 5648 ClassDeclaration *cd = NULL; | |
| 5649 | |
| 5650 if (sc->func) | |
| 5651 cd = sc->func->toParent()->isClassDeclaration(); | |
| 5652 if (!cd || !sc->func->isCtorDeclaration()) | |
| 5653 { | |
| 5654 error("class constructor call must be in a constructor"); | |
| 5655 type = Type::terror; | |
| 5656 return this; | |
| 5657 } | |
| 5658 else | |
| 5659 { | |
| 5660 #if 0 | |
| 5661 if (sc->callSuper & (CSXthis | CSXsuper)) | |
| 5662 error("reference to this before super()"); | |
| 5663 #endif | |
| 5664 if (sc->noctor || sc->callSuper & CSXlabel) | |
| 5665 error("constructor calls not allowed in loops or after labels"); | |
| 5666 if (sc->callSuper & (CSXsuper_ctor | CSXthis_ctor)) | |
| 5667 error("multiple constructor calls"); | |
| 5668 sc->callSuper |= CSXany_ctor | CSXthis_ctor; | |
| 5669 | |
| 5670 f = cd->ctor; | |
| 5671 f = f->overloadResolve(loc, arguments); | |
| 5672 checkDeprecated(sc, f); | |
| 5673 e1 = new DotVarExp(e1->loc, e1, f); | |
| 5674 e1 = e1->semantic(sc); | |
| 5675 t1 = e1->type; | |
| 5676 | |
| 5677 // BUG: this should really be done by checking the static | |
| 5678 // call graph | |
| 5679 if (f == sc->func) | |
| 5680 error("cyclic constructor call"); | |
| 5681 } | |
| 5682 } | |
| 5683 else if (!t1) | |
| 5684 { | |
| 5685 error("function expected before (), not '%s'", e1->toChars()); | |
| 5686 type = Type::terror; | |
| 5687 return this; | |
| 5688 } | |
| 5689 else if (t1->ty != Tfunction) | |
| 5690 { | |
| 5691 if (t1->ty == Tdelegate) | |
| 5692 { | |
| 5693 assert(t1->next->ty == Tfunction); | |
| 5694 tf = (TypeFunction *)(t1->next); | |
| 5695 goto Lcheckargs; | |
| 5696 } | |
| 5697 else if (t1->ty == Tpointer && t1->next->ty == Tfunction) | |
| 5698 { Expression *e; | |
| 5699 | |
| 5700 e = new PtrExp(loc, e1); | |
| 5701 t1 = t1->next; | |
| 5702 e->type = t1; | |
| 5703 e1 = e; | |
| 5704 } | |
| 5705 else if (e1->op == TOKtemplate) | |
| 5706 { | |
| 5707 TemplateExp *te = (TemplateExp *)e1; | |
| 5708 f = te->td->deduce(sc, loc, NULL, arguments); | |
| 5709 if (!f) | |
| 5710 { type = Type::terror; | |
| 5711 return this; | |
| 5712 } | |
| 5713 if (f->needThis() && hasThis(sc)) | |
| 5714 { | |
| 5715 // Supply an implicit 'this', as in | |
| 5716 // this.ident | |
| 5717 | |
| 5718 e1 = new DotTemplateExp(loc, (new ThisExp(loc))->semantic(sc), te->td); | |
| 5719 goto Lagain; | |
| 5720 } | |
| 5721 | |
| 5722 e1 = new VarExp(loc, f); | |
| 5723 goto Lagain; | |
| 5724 } | |
| 5725 else | |
| 5726 { error("function expected before (), not %s of type %s", e1->toChars(), e1->type->toChars()); | |
| 5727 type = Type::terror; | |
| 5728 return this; | |
| 5729 } | |
| 5730 } | |
| 5731 else if (e1->op == TOKvar) | |
| 5732 { | |
| 5733 // Do overload resolution | |
| 5734 VarExp *ve = (VarExp *)e1; | |
| 5735 | |
| 5736 f = ve->var->isFuncDeclaration(); | |
| 5737 assert(f); | |
| 5738 | |
| 5739 // Look to see if f is really a function template | |
| 5740 if (0 && !istemp && f->parent) | |
| 5741 { TemplateInstance *ti = f->parent->isTemplateInstance(); | |
| 5742 | |
| 5743 if (ti && | |
| 5744 (ti->name == f->ident || | |
| 5745 ti->toAlias()->ident == f->ident) | |
| 5746 && | |
| 5747 ti->tempdecl) | |
| 5748 { | |
| 5749 /* This is so that one can refer to the enclosing | |
| 5750 * template, even if it has the same name as a member | |
| 5751 * of the template, if it has a !(arguments) | |
| 5752 */ | |
| 5753 TemplateDeclaration *tempdecl = ti->tempdecl; | |
| 5754 if (tempdecl->overroot) // if not start of overloaded list of TemplateDeclaration's | |
| 5755 tempdecl = tempdecl->overroot; // then get the start | |
| 5756 e1 = new TemplateExp(loc, tempdecl); | |
| 5757 istemp = 1; | |
| 5758 goto Lagain; | |
| 5759 } | |
| 5760 } | |
| 5761 | |
| 5762 f = f->overloadResolve(loc, arguments); | |
| 5763 checkDeprecated(sc, f); | |
| 5764 | |
| 5765 if (f->needThis() && hasThis(sc)) | |
| 5766 { | |
| 5767 // Supply an implicit 'this', as in | |
| 5768 // this.ident | |
| 5769 | |
| 5770 e1 = new DotVarExp(loc, new ThisExp(loc), f); | |
| 5771 goto Lagain; | |
| 5772 } | |
| 5773 | |
| 5774 accessCheck(loc, sc, NULL, f); | |
| 5775 | |
| 5776 ve->var = f; | |
| 5777 ve->type = f->type; | |
| 5778 t1 = f->type; | |
| 5779 } | |
| 5780 assert(t1->ty == Tfunction); | |
| 5781 tf = (TypeFunction *)(t1); | |
| 5782 | |
| 5783 Lcheckargs: | |
| 5784 assert(tf->ty == Tfunction); | |
| 5785 type = tf->next; | |
| 5786 | |
| 5787 if (!arguments) | |
| 5788 arguments = new Expressions(); | |
| 5789 functionArguments(loc, sc, tf, arguments); | |
| 5790 | |
| 5791 assert(type); | |
| 5792 | |
| 5793 if (f && f->tintro) | |
| 5794 { | |
| 5795 Type *t = type; | |
| 5796 int offset = 0; | |
| 5797 | |
| 5798 if (f->tintro->next->isBaseOf(t, &offset) && offset) | |
| 5799 { | |
| 5800 type = f->tintro->next; | |
| 5801 return castTo(sc, t); | |
| 5802 } | |
| 5803 } | |
| 5804 | |
| 5805 return this; | |
| 5806 } | |
| 5807 | |
| 5808 int CallExp::checkSideEffect(int flag) | |
| 5809 { | |
| 5810 return 1; | |
| 5811 } | |
| 5812 | |
| 5813 Expression *CallExp::toLvalue(Scope *sc, Expression *e) | |
| 5814 { | |
| 5815 if (type->toBasetype()->ty == Tstruct) | |
| 5816 return this; | |
| 5817 else | |
| 5818 return Expression::toLvalue(sc, e); | |
| 5819 } | |
| 5820 | |
| 5821 void CallExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5822 { int i; | |
| 5823 | |
| 5824 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 5825 buf->writeByte('('); | |
| 5826 argsToCBuffer(buf, arguments, hgs); | |
| 5827 buf->writeByte(')'); | |
| 5828 } | |
| 5829 | |
| 5830 | |
| 5831 /************************************************************/ | |
| 5832 | |
| 5833 AddrExp::AddrExp(Loc loc, Expression *e) | |
| 5834 : UnaExp(loc, TOKaddress, sizeof(AddrExp), e) | |
| 5835 { | |
| 5836 } | |
| 5837 | |
| 5838 Expression *AddrExp::semantic(Scope *sc) | |
| 5839 { | |
| 5840 #if LOGSEMANTIC | |
| 5841 printf("AddrExp::semantic('%s')\n", toChars()); | |
| 5842 #endif | |
| 5843 if (!type) | |
| 5844 { | |
| 5845 UnaExp::semantic(sc); | |
| 5846 e1 = e1->toLvalue(sc, NULL); | |
| 5847 if (!e1->type) | |
| 5848 { | |
| 5849 error("cannot take address of %s", e1->toChars()); | |
| 5850 type = Type::tint32; | |
| 5851 return this; | |
| 5852 } | |
| 5853 type = e1->type->pointerTo(); | |
| 5854 | |
| 5855 // See if this should really be a delegate | |
| 5856 if (e1->op == TOKdotvar) | |
| 5857 { | |
| 5858 DotVarExp *dve = (DotVarExp *)e1; | |
| 5859 FuncDeclaration *f = dve->var->isFuncDeclaration(); | |
| 5860 | |
| 5861 if (f) | |
| 5862 { Expression *e; | |
| 5863 | |
| 5864 e = new DelegateExp(loc, dve->e1, f); | |
| 5865 e = e->semantic(sc); | |
| 5866 return e; | |
| 5867 } | |
| 5868 } | |
| 5869 else if (e1->op == TOKvar) | |
| 5870 { | |
| 5871 VarExp *dve = (VarExp *)e1; | |
| 5872 FuncDeclaration *f = dve->var->isFuncDeclaration(); | |
| 5873 | |
| 5874 if (f && f->isNested()) | |
| 5875 { Expression *e; | |
| 5876 | |
| 5877 e = new DelegateExp(loc, e1, f); | |
| 5878 e = e->semantic(sc); | |
| 5879 return e; | |
| 5880 } | |
| 5881 } | |
| 5882 else if (e1->op == TOKarray) | |
| 5883 { | |
| 5884 if (e1->type->toBasetype()->ty == Tbit) | |
| 5885 error("cannot take address of bit in array"); | |
| 5886 } | |
| 5887 return optimize(WANTvalue); | |
| 5888 } | |
| 5889 return this; | |
| 5890 } | |
| 5891 | |
| 5892 /************************************************************/ | |
| 5893 | |
| 5894 PtrExp::PtrExp(Loc loc, Expression *e) | |
| 5895 : UnaExp(loc, TOKstar, sizeof(PtrExp), e) | |
| 5896 { | |
| 5897 if (e->type) | |
| 5898 type = e->type->next; | |
| 5899 } | |
| 5900 | |
| 5901 PtrExp::PtrExp(Loc loc, Expression *e, Type *t) | |
| 5902 : UnaExp(loc, TOKstar, sizeof(PtrExp), e) | |
| 5903 { | |
| 5904 type = t; | |
| 5905 } | |
| 5906 | |
| 5907 Expression *PtrExp::semantic(Scope *sc) | |
| 5908 { Type *tb; | |
| 5909 | |
| 5910 #if LOGSEMANTIC | |
| 5911 printf("PtrExp::semantic('%s')\n", toChars()); | |
| 5912 #endif | |
| 5913 UnaExp::semantic(sc); | |
| 5914 e1 = resolveProperties(sc, e1); | |
| 5915 if (type) | |
| 5916 return this; | |
| 5917 if (!e1->type) | |
| 5918 printf("PtrExp::semantic('%s')\n", toChars()); | |
| 5919 tb = e1->type->toBasetype(); | |
| 5920 switch (tb->ty) | |
| 5921 { | |
| 5922 case Tpointer: | |
| 5923 type = tb->next; | |
| 5924 if (type->isbit()) | |
| 5925 { Expression *e; | |
| 5926 | |
| 5927 // Rewrite *p as p[0] | |
| 5928 e = new IndexExp(loc, e1, new IntegerExp(0)); | |
| 5929 return e->semantic(sc); | |
| 5930 } | |
| 5931 break; | |
| 5932 | |
| 5933 case Tsarray: | |
| 5934 case Tarray: | |
| 5935 type = tb->next; | |
| 5936 e1 = e1->castTo(sc, type->pointerTo()); | |
| 5937 break; | |
| 5938 | |
| 5939 default: | |
| 5940 error("can only * a pointer, not a '%s'", e1->type->toChars()); | |
| 5941 type = Type::tint32; | |
| 5942 break; | |
| 5943 } | |
| 5944 rvalue(); | |
| 5945 return this; | |
| 5946 } | |
| 5947 | |
| 5948 Expression *PtrExp::toLvalue(Scope *sc, Expression *e) | |
| 5949 { | |
| 5950 #if 0 | |
| 5951 tym = tybasic(e1->ET->Tty); | |
| 5952 if (!(tyscalar(tym) || | |
| 5953 tym == TYstruct || | |
| 5954 tym == TYarray && e->Eoper == TOKaddr)) | |
| 5955 synerr(EM_lvalue); // lvalue expected | |
| 5956 #endif | |
| 5957 return this; | |
| 5958 } | |
| 5959 | |
| 5960 void PtrExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5961 { | |
| 5962 buf->writeByte('*'); | |
| 5963 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 5964 } | |
| 5965 | |
| 5966 /************************************************************/ | |
| 5967 | |
| 5968 NegExp::NegExp(Loc loc, Expression *e) | |
| 5969 : UnaExp(loc, TOKneg, sizeof(NegExp), e) | |
| 5970 { | |
| 5971 } | |
| 5972 | |
| 5973 Expression *NegExp::semantic(Scope *sc) | |
| 5974 { Expression *e; | |
| 5975 | |
| 5976 #if LOGSEMANTIC | |
| 5977 printf("NegExp::semantic('%s')\n", toChars()); | |
| 5978 #endif | |
| 5979 if (!type) | |
| 5980 { | |
| 5981 UnaExp::semantic(sc); | |
| 5982 e1 = resolveProperties(sc, e1); | |
| 5983 e = op_overload(sc); | |
| 5984 if (e) | |
| 5985 return e; | |
| 5986 | |
| 5987 e1->checkNoBool(); | |
| 5988 e1->checkArithmetic(); | |
| 5989 type = e1->type; | |
| 5990 } | |
| 5991 return this; | |
| 5992 } | |
| 5993 | |
| 5994 /************************************************************/ | |
| 5995 | |
| 5996 UAddExp::UAddExp(Loc loc, Expression *e) | |
| 5997 : UnaExp(loc, TOKuadd, sizeof(UAddExp), e) | |
| 5998 { | |
| 5999 } | |
| 6000 | |
| 6001 Expression *UAddExp::semantic(Scope *sc) | |
| 6002 { Expression *e; | |
| 6003 | |
| 6004 #if LOGSEMANTIC | |
| 6005 printf("UAddExp::semantic('%s')\n", toChars()); | |
| 6006 #endif | |
| 6007 assert(!type); | |
| 6008 UnaExp::semantic(sc); | |
| 6009 e1 = resolveProperties(sc, e1); | |
| 6010 e = op_overload(sc); | |
| 6011 if (e) | |
| 6012 return e; | |
| 6013 e1->checkNoBool(); | |
| 6014 e1->checkArithmetic(); | |
| 6015 return e1; | |
| 6016 } | |
| 6017 | |
| 6018 /************************************************************/ | |
| 6019 | |
| 6020 ComExp::ComExp(Loc loc, Expression *e) | |
| 6021 : UnaExp(loc, TOKtilde, sizeof(ComExp), e) | |
| 6022 { | |
| 6023 } | |
| 6024 | |
| 6025 Expression *ComExp::semantic(Scope *sc) | |
| 6026 { Expression *e; | |
| 6027 | |
| 6028 if (!type) | |
| 6029 { | |
| 6030 UnaExp::semantic(sc); | |
| 6031 e1 = resolveProperties(sc, e1); | |
| 6032 e = op_overload(sc); | |
| 6033 if (e) | |
| 6034 return e; | |
| 6035 | |
| 6036 e1->checkNoBool(); | |
| 6037 e1 = e1->checkIntegral(); | |
| 6038 type = e1->type; | |
| 6039 } | |
| 6040 return this; | |
| 6041 } | |
| 6042 | |
| 6043 /************************************************************/ | |
| 6044 | |
| 6045 NotExp::NotExp(Loc loc, Expression *e) | |
| 6046 : UnaExp(loc, TOKnot, sizeof(NotExp), e) | |
| 6047 { | |
| 6048 } | |
| 6049 | |
| 6050 Expression *NotExp::semantic(Scope *sc) | |
| 6051 { | |
| 6052 UnaExp::semantic(sc); | |
| 6053 e1 = resolveProperties(sc, e1); | |
| 6054 e1 = e1->checkToBoolean(); | |
| 6055 type = Type::tboolean; | |
| 6056 return this; | |
| 6057 } | |
| 6058 | |
| 6059 int NotExp::isBit() | |
| 6060 { | |
| 6061 return TRUE; | |
| 6062 } | |
| 6063 | |
| 6064 | |
| 6065 | |
| 6066 /************************************************************/ | |
| 6067 | |
| 6068 BoolExp::BoolExp(Loc loc, Expression *e, Type *t) | |
| 6069 : UnaExp(loc, TOKtobool, sizeof(BoolExp), e) | |
| 6070 { | |
| 6071 type = t; | |
| 6072 } | |
| 6073 | |
| 6074 Expression *BoolExp::semantic(Scope *sc) | |
| 6075 { | |
| 6076 UnaExp::semantic(sc); | |
| 6077 e1 = resolveProperties(sc, e1); | |
| 6078 e1 = e1->checkToBoolean(); | |
| 6079 type = Type::tboolean; | |
| 6080 return this; | |
| 6081 } | |
| 6082 | |
| 6083 int BoolExp::isBit() | |
| 6084 { | |
| 6085 return TRUE; | |
| 6086 } | |
| 6087 | |
| 6088 /************************************************************/ | |
| 6089 | |
| 6090 DeleteExp::DeleteExp(Loc loc, Expression *e) | |
| 6091 : UnaExp(loc, TOKdelete, sizeof(DeleteExp), e) | |
| 6092 { | |
| 6093 } | |
| 6094 | |
| 6095 Expression *DeleteExp::semantic(Scope *sc) | |
| 6096 { | |
| 6097 Type *tb; | |
| 6098 | |
| 6099 UnaExp::semantic(sc); | |
| 6100 e1 = resolveProperties(sc, e1); | |
| 6101 e1 = e1->toLvalue(sc, NULL); | |
| 6102 type = Type::tvoid; | |
| 6103 | |
| 6104 tb = e1->type->toBasetype(); | |
| 6105 switch (tb->ty) | |
| 6106 { case Tclass: | |
| 6107 { TypeClass *tc = (TypeClass *)tb; | |
| 6108 ClassDeclaration *cd = tc->sym; | |
| 6109 | |
|
35
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
6110 if (cd->isCOMinterface()) |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
6111 { /* Because COM classes are deleted by IUnknown.Release() |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
6112 */ |
| 1 | 6113 error("cannot delete instance of COM interface %s", cd->toChars()); |
|
35
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
6114 } |
| 1 | 6115 break; |
| 6116 } | |
| 6117 case Tpointer: | |
| 6118 tb = tb->next->toBasetype(); | |
| 6119 if (tb->ty == Tstruct) | |
| 6120 { | |
| 6121 TypeStruct *ts = (TypeStruct *)tb; | |
| 6122 StructDeclaration *sd = ts->sym; | |
| 6123 FuncDeclaration *f = sd->aggDelete; | |
| 6124 | |
| 6125 if (f) | |
| 6126 { | |
| 6127 Expression *e; | |
| 6128 Expression *ec; | |
| 6129 Type *tpv = Type::tvoid->pointerTo(); | |
| 6130 | |
| 6131 e = e1; | |
| 6132 e->type = tpv; | |
| 6133 ec = new VarExp(loc, f); | |
| 6134 e = new CallExp(loc, ec, e); | |
| 6135 return e->semantic(sc); | |
| 6136 } | |
| 6137 } | |
| 6138 break; | |
| 6139 | |
| 6140 case Tarray: | |
| 6141 break; | |
| 6142 | |
| 6143 default: | |
| 6144 if (e1->op == TOKindex) | |
| 6145 { | |
| 6146 IndexExp *ae = (IndexExp *)(e1); | |
| 6147 Type *tb1 = ae->e1->type->toBasetype(); | |
| 6148 if (tb1->ty == Taarray) | |
| 6149 break; | |
| 6150 } | |
| 6151 error("cannot delete type %s", e1->type->toChars()); | |
| 6152 break; | |
| 6153 } | |
| 6154 | |
| 6155 if (e1->op == TOKindex) | |
| 6156 { | |
| 6157 IndexExp *ae = (IndexExp *)(e1); | |
| 6158 Type *tb1 = ae->e1->type->toBasetype(); | |
| 6159 if (tb1->ty == Taarray) | |
| 6160 { if (!global.params.useDeprecated) | |
| 6161 error("delete aa[key] deprecated, use aa.remove(key)"); | |
| 6162 } | |
| 6163 } | |
| 6164 | |
| 6165 return this; | |
| 6166 } | |
| 6167 | |
| 6168 int DeleteExp::checkSideEffect(int flag) | |
| 6169 { | |
| 6170 return 1; | |
| 6171 } | |
| 6172 | |
| 6173 Expression *DeleteExp::checkToBoolean() | |
| 6174 { | |
| 6175 error("delete does not give a boolean result"); | |
| 6176 return this; | |
| 6177 } | |
| 6178 | |
| 6179 void DeleteExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6180 { | |
| 6181 buf->writestring("delete "); | |
| 6182 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 6183 } | |
| 6184 | |
| 6185 /************************************************************/ | |
| 6186 | |
| 6187 CastExp::CastExp(Loc loc, Expression *e, Type *t) | |
| 6188 : UnaExp(loc, TOKcast, sizeof(CastExp), e) | |
| 6189 { | |
| 6190 to = t; | |
| 6191 } | |
| 6192 | |
| 6193 Expression *CastExp::syntaxCopy() | |
| 6194 { | |
| 6195 return new CastExp(loc, e1->syntaxCopy(), to->syntaxCopy()); | |
| 6196 } | |
| 6197 | |
| 6198 | |
| 6199 Expression *CastExp::semantic(Scope *sc) | |
| 6200 { Expression *e; | |
| 6201 BinExp *b; | |
| 6202 UnaExp *u; | |
| 6203 | |
| 6204 #if LOGSEMANTIC | |
| 6205 printf("CastExp::semantic('%s')\n", toChars()); | |
| 6206 #endif | |
| 6207 | |
| 6208 //static int x; assert(++x < 10); | |
| 6209 | |
| 6210 if (type) | |
| 6211 return this; | |
| 6212 UnaExp::semantic(sc); | |
| 6213 if (e1->type) // if not a tuple | |
| 6214 { | |
| 6215 e1 = resolveProperties(sc, e1); | |
| 6216 to = to->semantic(loc, sc); | |
| 6217 | |
| 6218 e = op_overload(sc); | |
| 6219 if (e) | |
| 6220 { | |
| 6221 return e->implicitCastTo(sc, to); | |
| 6222 } | |
| 6223 | |
| 6224 Type *tob = to->toBasetype(); | |
| 6225 if (tob->ty == Tstruct && !tob->equals(e1->type->toBasetype())) | |
| 6226 { | |
| 6227 /* Look to replace: | |
| 6228 * cast(S)t | |
| 6229 * with: | |
| 6230 * S(t) | |
| 6231 */ | |
| 6232 | |
| 6233 // Rewrite as to.call(e1) | |
| 6234 e = new TypeExp(loc, to); | |
| 6235 e = new DotIdExp(loc, e, Id::call); | |
| 6236 e = new CallExp(loc, e, e1); | |
| 6237 e = e->semantic(sc); | |
| 6238 return e; | |
| 6239 } | |
| 6240 } | |
| 6241 e = e1->castTo(sc, to); | |
| 6242 return e; | |
| 6243 } | |
| 6244 | |
| 6245 int CastExp::checkSideEffect(int flag) | |
| 6246 { | |
| 6247 /* if not: | |
| 6248 * cast(void) | |
| 6249 * cast(classtype)func() | |
| 6250 */ | |
| 6251 if (!to->equals(Type::tvoid) && | |
| 6252 !(to->ty == Tclass && e1->op == TOKcall && e1->type->ty == Tclass)) | |
| 6253 return Expression::checkSideEffect(flag); | |
| 6254 return 1; | |
| 6255 } | |
| 6256 | |
| 6257 void CastExp::checkEscape() | |
| 6258 { Type *tb = type->toBasetype(); | |
| 6259 if (tb->ty == Tarray && e1->op == TOKvar && | |
| 6260 e1->type->toBasetype()->ty == Tsarray) | |
| 6261 { VarExp *ve = (VarExp *)e1; | |
| 6262 VarDeclaration *v = ve->var->isVarDeclaration(); | |
| 6263 if (v) | |
| 6264 { | |
| 6265 if (!v->isDataseg() && !v->isParameter()) | |
| 6266 error("escaping reference to local %s", v->toChars()); | |
| 6267 } | |
| 6268 } | |
| 6269 } | |
| 6270 | |
| 6271 void CastExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6272 { | |
| 6273 buf->writestring("cast("); | |
| 6274 to->toCBuffer(buf, NULL, hgs); | |
| 6275 buf->writeByte(')'); | |
| 6276 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 6277 } | |
| 6278 | |
| 6279 | |
| 6280 /************************************************************/ | |
| 6281 | |
| 6282 SliceExp::SliceExp(Loc loc, Expression *e1, Expression *lwr, Expression *upr) | |
| 6283 : UnaExp(loc, TOKslice, sizeof(SliceExp), e1) | |
| 6284 { | |
| 6285 this->upr = upr; | |
| 6286 this->lwr = lwr; | |
| 6287 lengthVar = NULL; | |
| 6288 } | |
| 6289 | |
| 6290 Expression *SliceExp::syntaxCopy() | |
| 6291 { | |
| 6292 Expression *lwr = NULL; | |
| 6293 if (this->lwr) | |
| 6294 lwr = this->lwr->syntaxCopy(); | |
| 6295 | |
| 6296 Expression *upr = NULL; | |
| 6297 if (this->upr) | |
| 6298 upr = this->upr->syntaxCopy(); | |
| 6299 | |
| 6300 return new SliceExp(loc, e1->syntaxCopy(), lwr, upr); | |
| 6301 } | |
| 6302 | |
| 6303 Expression *SliceExp::semantic(Scope *sc) | |
| 6304 { Expression *e; | |
| 6305 AggregateDeclaration *ad; | |
| 6306 //FuncDeclaration *fd; | |
| 6307 ScopeDsymbol *sym; | |
| 6308 | |
| 6309 #if LOGSEMANTIC | |
| 6310 printf("SliceExp::semantic('%s')\n", toChars()); | |
| 6311 #endif | |
| 6312 if (type) | |
| 6313 return this; | |
| 6314 | |
| 6315 UnaExp::semantic(sc); | |
| 6316 e1 = resolveProperties(sc, e1); | |
| 6317 | |
| 6318 e = this; | |
| 6319 | |
| 6320 Type *t = e1->type->toBasetype(); | |
| 6321 if (t->ty == Tpointer) | |
| 6322 { | |
| 6323 if (!lwr || !upr) | |
| 6324 error("need upper and lower bound to slice pointer"); | |
| 6325 } | |
| 6326 else if (t->ty == Tarray) | |
| 6327 { | |
| 6328 } | |
| 6329 else if (t->ty == Tsarray) | |
| 6330 { | |
| 6331 } | |
| 6332 else if (t->ty == Tclass) | |
| 6333 { | |
| 6334 ad = ((TypeClass *)t)->sym; | |
| 6335 goto L1; | |
| 6336 } | |
| 6337 else if (t->ty == Tstruct) | |
| 6338 { | |
| 6339 ad = ((TypeStruct *)t)->sym; | |
| 6340 | |
| 6341 L1: | |
| 6342 if (search_function(ad, Id::slice)) | |
| 6343 { | |
| 6344 // Rewrite as e1.slice(lwr, upr) | |
| 6345 e = new DotIdExp(loc, e1, Id::slice); | |
| 6346 | |
| 6347 if (lwr) | |
| 6348 { | |
| 6349 assert(upr); | |
| 6350 e = new CallExp(loc, e, lwr, upr); | |
| 6351 } | |
| 6352 else | |
| 6353 { assert(!upr); | |
| 6354 e = new CallExp(loc, e); | |
| 6355 } | |
| 6356 e = e->semantic(sc); | |
| 6357 return e; | |
| 6358 } | |
| 6359 goto Lerror; | |
| 6360 } | |
| 6361 else if (t->ty == Ttuple) | |
| 6362 { | |
| 6363 if (!lwr && !upr) | |
| 6364 return e1; | |
| 6365 if (!lwr || !upr) | |
| 6366 { error("need upper and lower bound to slice tuple"); | |
| 6367 goto Lerror; | |
| 6368 } | |
| 6369 } | |
| 6370 else | |
| 6371 goto Lerror; | |
| 6372 | |
| 6373 if (t->ty == Tsarray || t->ty == Tarray || t->ty == Ttuple) | |
| 6374 { | |
| 6375 sym = new ArrayScopeSymbol(this); | |
| 6376 sym->loc = loc; | |
| 6377 sym->parent = sc->scopesym; | |
| 6378 sc = sc->push(sym); | |
| 6379 } | |
| 6380 | |
| 6381 if (lwr) | |
| 6382 { lwr = lwr->semantic(sc); | |
| 6383 lwr = resolveProperties(sc, lwr); | |
| 6384 lwr = lwr->implicitCastTo(sc, Type::tsize_t); | |
| 6385 } | |
| 6386 if (upr) | |
| 6387 { upr = upr->semantic(sc); | |
| 6388 upr = resolveProperties(sc, upr); | |
| 6389 upr = upr->implicitCastTo(sc, Type::tsize_t); | |
| 6390 } | |
| 6391 | |
| 6392 if (t->ty == Tsarray || t->ty == Tarray || t->ty == Ttuple) | |
| 6393 sc->pop(); | |
| 6394 | |
| 6395 if (t->ty == Ttuple) | |
| 6396 { | |
| 6397 lwr = lwr->optimize(WANTvalue); | |
| 6398 upr = upr->optimize(WANTvalue); | |
| 6399 uinteger_t i1 = lwr->toUInteger(); | |
| 6400 uinteger_t i2 = upr->toUInteger(); | |
| 6401 | |
| 6402 size_t length; | |
| 6403 TupleExp *te; | |
| 6404 TypeTuple *tup; | |
| 6405 | |
| 6406 if (e1->op == TOKtuple) // slicing an expression tuple | |
| 6407 { te = (TupleExp *)e1; | |
| 6408 length = te->exps->dim; | |
| 6409 } | |
| 6410 else if (e1->op == TOKtype) // slicing a type tuple | |
| 6411 { tup = (TypeTuple *)t; | |
| 6412 length = Argument::dim(tup->arguments); | |
| 6413 } | |
| 6414 else | |
| 6415 assert(0); | |
| 6416 | |
| 6417 if (i1 <= i2 && i2 <= length) | |
| 6418 { size_t j1 = (size_t) i1; | |
| 6419 size_t j2 = (size_t) i2; | |
| 6420 | |
| 6421 if (e1->op == TOKtuple) | |
| 6422 { Expressions *exps = new Expressions; | |
| 6423 exps->setDim(j2 - j1); | |
| 6424 for (size_t i = 0; i < j2 - j1; i++) | |
| 6425 { Expression *e = (Expression *)te->exps->data[j1 + i]; | |
| 6426 exps->data[i] = (void *)e; | |
| 6427 } | |
| 6428 e = new TupleExp(loc, exps); | |
| 6429 } | |
| 6430 else | |
| 6431 { Arguments *args = new Arguments; | |
| 6432 args->reserve(j2 - j1); | |
| 6433 for (size_t i = j1; i < j2; i++) | |
| 6434 { Argument *arg = Argument::getNth(tup->arguments, i); | |
| 6435 args->push(arg); | |
| 6436 } | |
| 6437 e = new TypeExp(e1->loc, new TypeTuple(args)); | |
| 6438 } | |
| 6439 e = e->semantic(sc); | |
| 6440 } | |
| 6441 else | |
| 6442 { | |
| 6443 error("string slice [%ju .. %ju] is out of bounds", i1, i2); | |
| 6444 e = e1; | |
| 6445 } | |
| 6446 return e; | |
| 6447 } | |
| 6448 | |
| 6449 type = t->next->arrayOf(); | |
| 6450 return e; | |
| 6451 | |
| 6452 Lerror: | |
| 6453 char *s; | |
| 6454 if (t->ty == Tvoid) | |
| 6455 s = e1->toChars(); | |
| 6456 else | |
| 6457 s = t->toChars(); | |
| 6458 error("%s cannot be sliced with []", s); | |
| 6459 type = Type::terror; | |
| 6460 return e; | |
| 6461 } | |
| 6462 | |
| 6463 void SliceExp::checkEscape() | |
| 6464 { | |
| 6465 e1->checkEscape(); | |
| 6466 } | |
| 6467 | |
| 6468 Expression *SliceExp::toLvalue(Scope *sc, Expression *e) | |
| 6469 { | |
| 6470 return this; | |
| 6471 } | |
| 6472 | |
| 6473 Expression *SliceExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 6474 { | |
| 6475 error("slice expression %s is not a modifiable lvalue", toChars()); | |
| 6476 return this; | |
| 6477 } | |
| 6478 | |
| 6479 void SliceExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6480 { | |
| 6481 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 6482 buf->writeByte('['); | |
| 6483 if (upr || lwr) | |
| 6484 { | |
| 6485 if (lwr) | |
| 6486 expToCBuffer(buf, hgs, lwr, PREC_assign); | |
| 6487 else | |
| 6488 buf->writeByte('0'); | |
| 6489 buf->writestring(".."); | |
| 6490 if (upr) | |
| 6491 expToCBuffer(buf, hgs, upr, PREC_assign); | |
| 6492 else | |
| 6493 buf->writestring("length"); // BUG: should be array.length | |
| 6494 } | |
| 6495 buf->writeByte(']'); | |
| 6496 } | |
| 6497 | |
| 6498 /********************** ArrayLength **************************************/ | |
| 6499 | |
| 6500 ArrayLengthExp::ArrayLengthExp(Loc loc, Expression *e1) | |
| 6501 : UnaExp(loc, TOKarraylength, sizeof(ArrayLengthExp), e1) | |
| 6502 { | |
| 6503 } | |
| 6504 | |
| 6505 Expression *ArrayLengthExp::semantic(Scope *sc) | |
| 6506 { Expression *e; | |
| 6507 | |
| 6508 #if LOGSEMANTIC | |
| 6509 printf("ArrayLengthExp::semantic('%s')\n", toChars()); | |
| 6510 #endif | |
| 6511 if (!type) | |
| 6512 { | |
| 6513 UnaExp::semantic(sc); | |
| 6514 e1 = resolveProperties(sc, e1); | |
| 6515 | |
| 6516 type = Type::tsize_t; | |
| 6517 } | |
| 6518 return this; | |
| 6519 } | |
| 6520 | |
| 6521 void ArrayLengthExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6522 { | |
| 6523 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 6524 buf->writestring(".length"); | |
| 6525 } | |
| 6526 | |
| 6527 /*********************** ArrayExp *************************************/ | |
| 6528 | |
| 6529 // e1 [ i1, i2, i3, ... ] | |
| 6530 | |
| 6531 ArrayExp::ArrayExp(Loc loc, Expression *e1, Expressions *args) | |
| 6532 : UnaExp(loc, TOKarray, sizeof(ArrayExp), e1) | |
| 6533 { | |
| 6534 arguments = args; | |
| 6535 } | |
| 6536 | |
| 6537 Expression *ArrayExp::syntaxCopy() | |
| 6538 { | |
| 6539 return new ArrayExp(loc, e1->syntaxCopy(), arraySyntaxCopy(arguments)); | |
| 6540 } | |
| 6541 | |
| 6542 Expression *ArrayExp::semantic(Scope *sc) | |
| 6543 { Expression *e; | |
| 6544 Type *t1; | |
| 6545 | |
| 6546 #if LOGSEMANTIC | |
| 6547 printf("ArrayExp::semantic('%s')\n", toChars()); | |
| 6548 #endif | |
| 6549 UnaExp::semantic(sc); | |
| 6550 e1 = resolveProperties(sc, e1); | |
| 6551 | |
| 6552 t1 = e1->type->toBasetype(); | |
| 6553 if (t1->ty != Tclass && t1->ty != Tstruct) | |
| 6554 { // Convert to IndexExp | |
| 6555 if (arguments->dim != 1) | |
| 6556 error("only one index allowed to index %s", t1->toChars()); | |
| 6557 e = new IndexExp(loc, e1, (Expression *)arguments->data[0]); | |
| 6558 return e->semantic(sc); | |
| 6559 } | |
| 6560 | |
| 6561 // Run semantic() on each argument | |
| 6562 for (size_t i = 0; i < arguments->dim; i++) | |
| 6563 { e = (Expression *)arguments->data[i]; | |
| 6564 | |
| 6565 e = e->semantic(sc); | |
| 6566 if (!e->type) | |
| 6567 error("%s has no value", e->toChars()); | |
| 6568 arguments->data[i] = (void *)e; | |
| 6569 } | |
| 6570 | |
| 6571 expandTuples(arguments); | |
| 6572 assert(arguments && arguments->dim); | |
| 6573 | |
| 6574 e = op_overload(sc); | |
| 6575 if (!e) | |
| 6576 { error("no [] operator overload for type %s", e1->type->toChars()); | |
| 6577 e = e1; | |
| 6578 } | |
| 6579 return e; | |
| 6580 } | |
| 6581 | |
| 6582 | |
| 6583 Expression *ArrayExp::toLvalue(Scope *sc, Expression *e) | |
| 6584 { | |
| 6585 if (type && type->toBasetype()->ty == Tvoid) | |
| 6586 error("voids have no value"); | |
| 6587 return this; | |
| 6588 } | |
| 6589 | |
| 6590 | |
| 6591 void ArrayExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6592 { int i; | |
| 6593 | |
| 6594 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 6595 buf->writeByte('['); | |
| 6596 argsToCBuffer(buf, arguments, hgs); | |
| 6597 buf->writeByte(']'); | |
| 6598 } | |
| 6599 | |
| 6600 /************************* DotExp ***********************************/ | |
| 6601 | |
| 6602 DotExp::DotExp(Loc loc, Expression *e1, Expression *e2) | |
| 6603 : BinExp(loc, TOKdotexp, sizeof(DotExp), e1, e2) | |
| 6604 { | |
| 6605 } | |
| 6606 | |
| 6607 Expression *DotExp::semantic(Scope *sc) | |
| 6608 { | |
| 6609 #if LOGSEMANTIC | |
| 6610 printf("DotExp::semantic('%s')\n", toChars()); | |
| 6611 if (type) printf("\ttype = %s\n", type->toChars()); | |
| 6612 #endif | |
| 6613 e1 = e1->semantic(sc); | |
| 6614 e2 = e2->semantic(sc); | |
| 6615 if (e2->op == TOKimport) | |
| 6616 { | |
| 6617 ScopeExp *se = (ScopeExp *)e2; | |
| 6618 TemplateDeclaration *td = se->sds->isTemplateDeclaration(); | |
| 6619 if (td) | |
| 6620 { Expression *e = new DotTemplateExp(loc, e1, td); | |
| 6621 e = e->semantic(sc); | |
| 6622 return e; | |
| 6623 } | |
| 6624 } | |
| 6625 if (!type) | |
| 6626 type = e2->type; | |
| 6627 return this; | |
| 6628 } | |
| 6629 | |
| 6630 | |
| 6631 /************************* CommaExp ***********************************/ | |
| 6632 | |
| 6633 CommaExp::CommaExp(Loc loc, Expression *e1, Expression *e2) | |
| 6634 : BinExp(loc, TOKcomma, sizeof(CommaExp), e1, e2) | |
| 6635 { | |
| 6636 } | |
| 6637 | |
| 6638 Expression *CommaExp::semantic(Scope *sc) | |
| 6639 { | |
| 6640 if (!type) | |
| 6641 { BinExp::semanticp(sc); | |
| 6642 type = e2->type; | |
| 6643 } | |
| 6644 return this; | |
| 6645 } | |
| 6646 | |
| 6647 void CommaExp::checkEscape() | |
| 6648 { | |
| 6649 e2->checkEscape(); | |
| 6650 } | |
| 6651 | |
| 6652 Expression *CommaExp::toLvalue(Scope *sc, Expression *e) | |
| 6653 { | |
| 6654 e2 = e2->toLvalue(sc, NULL); | |
| 6655 return this; | |
| 6656 } | |
| 6657 | |
| 6658 Expression *CommaExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 6659 { | |
| 6660 e2 = e2->modifiableLvalue(sc, e); | |
| 6661 return this; | |
| 6662 } | |
| 6663 | |
| 6664 int CommaExp::isBool(int result) | |
| 6665 { | |
| 6666 return e2->isBool(result); | |
| 6667 } | |
| 6668 | |
| 6669 int CommaExp::checkSideEffect(int flag) | |
| 6670 { | |
| 6671 if (flag == 2) | |
| 6672 return e1->checkSideEffect(2) || e2->checkSideEffect(2); | |
| 6673 else | |
| 6674 { | |
| 6675 // Don't check e1 until we cast(void) the a,b code generation | |
| 6676 return e2->checkSideEffect(flag); | |
| 6677 } | |
| 6678 } | |
| 6679 | |
| 6680 /************************** IndexExp **********************************/ | |
| 6681 | |
| 6682 // e1 [ e2 ] | |
| 6683 | |
| 6684 IndexExp::IndexExp(Loc loc, Expression *e1, Expression *e2) | |
| 6685 : BinExp(loc, TOKindex, sizeof(IndexExp), e1, e2) | |
| 6686 { | |
| 6687 //printf("IndexExp::IndexExp('%s')\n", toChars()); | |
| 6688 lengthVar = NULL; | |
| 6689 modifiable = 0; // assume it is an rvalue | |
| 6690 } | |
| 6691 | |
| 6692 Expression *IndexExp::semantic(Scope *sc) | |
| 6693 { Expression *e; | |
| 6694 BinExp *b; | |
| 6695 UnaExp *u; | |
| 6696 Type *t1; | |
| 6697 ScopeDsymbol *sym; | |
| 6698 | |
| 6699 #if LOGSEMANTIC | |
| 6700 printf("IndexExp::semantic('%s')\n", toChars()); | |
| 6701 #endif | |
| 6702 if (type) | |
| 6703 return this; | |
| 6704 if (!e1->type) | |
| 6705 e1 = e1->semantic(sc); | |
| 6706 assert(e1->type); // semantic() should already be run on it | |
| 6707 e = this; | |
| 6708 | |
| 6709 // Note that unlike C we do not implement the int[ptr] | |
| 6710 | |
| 6711 t1 = e1->type->toBasetype(); | |
| 6712 | |
| 6713 if (t1->ty == Tsarray || t1->ty == Tarray || t1->ty == Ttuple) | |
| 6714 { // Create scope for 'length' variable | |
| 6715 sym = new ArrayScopeSymbol(this); | |
| 6716 sym->loc = loc; | |
| 6717 sym->parent = sc->scopesym; | |
| 6718 sc = sc->push(sym); | |
| 6719 } | |
| 6720 | |
| 6721 e2 = e2->semantic(sc); | |
| 6722 if (!e2->type) | |
| 6723 { | |
| 6724 error("%s has no value", e2->toChars()); | |
| 6725 e2->type = Type::terror; | |
| 6726 } | |
| 6727 e2 = resolveProperties(sc, e2); | |
| 6728 | |
| 6729 if (t1->ty == Tsarray || t1->ty == Tarray || t1->ty == Ttuple) | |
| 6730 sc = sc->pop(); | |
| 6731 | |
| 6732 switch (t1->ty) | |
| 6733 { | |
| 6734 case Tpointer: | |
| 6735 case Tarray: | |
| 6736 e2 = e2->implicitCastTo(sc, Type::tsize_t); | |
| 6737 e->type = t1->next; | |
| 6738 break; | |
| 6739 | |
| 6740 case Tsarray: | |
| 6741 { | |
| 6742 e2 = e2->implicitCastTo(sc, Type::tsize_t); | |
| 6743 | |
| 6744 TypeSArray *tsa = (TypeSArray *)t1; | |
| 6745 | |
| 6746 #if 0 // Don't do now, because it might be short-circuit evaluated | |
| 6747 // Do compile time array bounds checking if possible | |
| 6748 e2 = e2->optimize(WANTvalue); | |
| 6749 if (e2->op == TOKint64) | |
| 6750 { | |
| 6751 integer_t index = e2->toInteger(); | |
| 6752 integer_t length = tsa->dim->toInteger(); | |
| 6753 if (index < 0 || index >= length) | |
| 6754 error("array index [%lld] is outside array bounds [0 .. %lld]", | |
| 6755 index, length); | |
| 6756 } | |
| 6757 #endif | |
| 6758 e->type = t1->next; | |
| 6759 break; | |
| 6760 } | |
| 6761 | |
| 6762 case Taarray: | |
| 6763 { TypeAArray *taa = (TypeAArray *)t1; | |
| 6764 | |
| 6765 e2 = e2->implicitCastTo(sc, taa->index); // type checking | |
| 6766 e2 = e2->implicitCastTo(sc, taa->key); // actual argument type | |
| 6767 type = taa->next; | |
| 6768 break; | |
| 6769 } | |
| 6770 | |
| 6771 case Ttuple: | |
| 6772 { | |
| 6773 e2 = e2->implicitCastTo(sc, Type::tsize_t); | |
| 6774 e2 = e2->optimize(WANTvalue); | |
| 6775 uinteger_t index = e2->toUInteger(); | |
| 6776 size_t length; | |
| 6777 TupleExp *te; | |
| 6778 TypeTuple *tup; | |
| 6779 | |
| 6780 if (e1->op == TOKtuple) | |
| 6781 { te = (TupleExp *)e1; | |
| 6782 length = te->exps->dim; | |
| 6783 } | |
| 6784 else if (e1->op == TOKtype) | |
| 6785 { | |
| 6786 tup = (TypeTuple *)t1; | |
| 6787 length = Argument::dim(tup->arguments); | |
| 6788 } | |
| 6789 else | |
| 6790 assert(0); | |
| 6791 | |
| 6792 if (index < length) | |
| 6793 { | |
| 6794 | |
| 6795 if (e1->op == TOKtuple) | |
| 6796 e = (Expression *)te->exps->data[(size_t)index]; | |
| 6797 else | |
| 6798 e = new TypeExp(e1->loc, Argument::getNth(tup->arguments, (size_t)index)->type); | |
| 6799 } | |
| 6800 else | |
| 6801 { | |
| 6802 error("array index [%ju] is outside array bounds [0 .. %zu]", | |
| 6803 index, length); | |
| 6804 e = e1; | |
| 6805 } | |
| 6806 break; | |
| 6807 } | |
| 6808 | |
| 6809 default: | |
| 6810 error("%s must be an array or pointer type, not %s", | |
| 6811 e1->toChars(), e1->type->toChars()); | |
| 6812 type = Type::tint32; | |
| 6813 break; | |
| 6814 } | |
| 6815 return e; | |
| 6816 } | |
| 6817 | |
| 6818 Expression *IndexExp::toLvalue(Scope *sc, Expression *e) | |
| 6819 { | |
| 6820 // if (type && type->toBasetype()->ty == Tvoid) | |
| 6821 // error("voids have no value"); | |
| 6822 return this; | |
| 6823 } | |
| 6824 | |
| 6825 Expression *IndexExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 6826 { | |
| 6827 //printf("IndexExp::modifiableLvalue(%s)\n", toChars()); | |
| 6828 modifiable = 1; | |
| 6829 if (e1->op == TOKstring) | |
| 6830 error("string literals are immutable"); | |
| 6831 if (e1->type->toBasetype()->ty == Taarray) | |
| 6832 e1 = e1->modifiableLvalue(sc, e1); | |
| 6833 return toLvalue(sc, e); | |
| 6834 } | |
| 6835 | |
| 6836 void IndexExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6837 { | |
| 6838 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 6839 buf->writeByte('['); | |
| 6840 expToCBuffer(buf, hgs, e2, PREC_assign); | |
| 6841 buf->writeByte(']'); | |
| 6842 } | |
| 6843 | |
| 6844 | |
| 6845 /************************* PostExp ***********************************/ | |
| 6846 | |
| 6847 PostExp::PostExp(enum TOK op, Loc loc, Expression *e) | |
| 6848 : BinExp(loc, op, sizeof(PostExp), e, | |
| 6849 new IntegerExp(loc, 1, Type::tint32)) | |
| 6850 { | |
| 6851 } | |
| 6852 | |
| 6853 Expression *PostExp::semantic(Scope *sc) | |
| 6854 { Expression *e = this; | |
| 6855 | |
| 6856 if (!type) | |
| 6857 { | |
| 6858 BinExp::semantic(sc); | |
| 6859 e2 = resolveProperties(sc, e2); | |
| 6860 | |
| 6861 e = op_overload(sc); | |
| 6862 if (e) | |
| 6863 return e; | |
| 6864 | |
| 6865 e = this; | |
| 6866 e1 = e1->modifiableLvalue(sc, NULL); | |
| 6867 e1->checkScalar(); | |
| 6868 e1->checkNoBool(); | |
| 6869 if (e1->type->ty == Tpointer) | |
| 6870 e = scaleFactor(sc); | |
| 6871 else | |
| 6872 e2 = e2->castTo(sc, e1->type); | |
| 6873 e->type = e1->type; | |
| 6874 } | |
| 6875 return e; | |
| 6876 } | |
| 6877 | |
| 6878 void PostExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6879 { | |
| 6880 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 6881 buf->writestring((op == TOKplusplus) ? (char *)"++" : (char *)"--"); | |
| 6882 } | |
| 6883 | |
| 6884 /************************************************************/ | |
| 6885 | |
| 6886 /* Can be TOKconstruct too */ | |
| 6887 | |
| 6888 AssignExp::AssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 6889 : BinExp(loc, TOKassign, sizeof(AssignExp), e1, e2) | |
| 6890 { | |
| 6891 ismemset = 0; | |
| 6892 } | |
| 6893 | |
| 6894 Expression *AssignExp::semantic(Scope *sc) | |
| 6895 { Type *t1; | |
| 6896 Expression *e1old = e1; | |
| 6897 | |
| 6898 #if LOGSEMANTIC | |
| 6899 printf("AssignExp::semantic('%s')\n", toChars()); | |
| 6900 #endif | |
| 6901 //printf("e1->op = %d, '%s'\n", e1->op, Token::toChars(e1->op)); | |
| 6902 | |
| 6903 /* Look for operator overloading of a[i]=value. | |
| 6904 * Do it before semantic() otherwise the a[i] will have been | |
| 6905 * converted to a.opIndex() already. | |
| 6906 */ | |
| 6907 if (e1->op == TOKarray) | |
| 6908 { Type *t1; | |
| 6909 ArrayExp *ae = (ArrayExp *)e1; | |
| 6910 AggregateDeclaration *ad; | |
| 6911 Identifier *id = Id::index; | |
| 6912 | |
| 6913 ae->e1 = ae->e1->semantic(sc); | |
| 6914 t1 = ae->e1->type->toBasetype(); | |
| 6915 if (t1->ty == Tstruct) | |
| 6916 { | |
| 6917 ad = ((TypeStruct *)t1)->sym; | |
| 6918 goto L1; | |
| 6919 } | |
| 6920 else if (t1->ty == Tclass) | |
| 6921 { | |
| 6922 ad = ((TypeClass *)t1)->sym; | |
| 6923 L1: | |
| 6924 // Rewrite (a[i] = value) to (a.opIndexAssign(value, i)) | |
| 6925 if (search_function(ad, Id::indexass)) | |
| 6926 { Expression *e = new DotIdExp(loc, ae->e1, Id::indexass); | |
| 6927 Expressions *a = (Expressions *)ae->arguments->copy(); | |
| 6928 | |
| 6929 a->insert(0, e2); | |
| 6930 e = new CallExp(loc, e, a); | |
| 6931 e = e->semantic(sc); | |
| 6932 return e; | |
| 6933 } | |
| 6934 else | |
| 6935 { | |
| 6936 // Rewrite (a[i] = value) to (a.opIndex(i, value)) | |
| 6937 if (search_function(ad, id)) | |
| 6938 { Expression *e = new DotIdExp(loc, ae->e1, id); | |
| 6939 | |
| 6940 if (1 || !global.params.useDeprecated) | |
| 6941 error("operator [] assignment overload with opIndex(i, value) illegal, use opIndexAssign(value, i)"); | |
| 6942 | |
| 6943 e = new CallExp(loc, e, (Expression *)ae->arguments->data[0], e2); | |
| 6944 e = e->semantic(sc); | |
| 6945 return e; | |
| 6946 } | |
| 6947 } | |
| 6948 } | |
| 6949 } | |
| 6950 /* Look for operator overloading of a[i..j]=value. | |
| 6951 * Do it before semantic() otherwise the a[i..j] will have been | |
| 6952 * converted to a.opSlice() already. | |
| 6953 */ | |
| 6954 if (e1->op == TOKslice) | |
| 6955 { Type *t1; | |
| 6956 SliceExp *ae = (SliceExp *)e1; | |
| 6957 AggregateDeclaration *ad; | |
| 6958 Identifier *id = Id::index; | |
| 6959 | |
| 6960 ae->e1 = ae->e1->semantic(sc); | |
| 6961 ae->e1 = resolveProperties(sc, ae->e1); | |
| 6962 t1 = ae->e1->type->toBasetype(); | |
| 6963 if (t1->ty == Tstruct) | |
| 6964 { | |
| 6965 ad = ((TypeStruct *)t1)->sym; | |
| 6966 goto L2; | |
| 6967 } | |
| 6968 else if (t1->ty == Tclass) | |
| 6969 { | |
| 6970 ad = ((TypeClass *)t1)->sym; | |
| 6971 L2: | |
| 6972 // Rewrite (a[i..j] = value) to (a.opIndexAssign(value, i, j)) | |
| 6973 if (search_function(ad, Id::sliceass)) | |
| 6974 { Expression *e = new DotIdExp(loc, ae->e1, Id::sliceass); | |
| 6975 Expressions *a = new Expressions(); | |
| 6976 | |
| 6977 a->push(e2); | |
| 6978 if (ae->lwr) | |
| 6979 { a->push(ae->lwr); | |
| 6980 assert(ae->upr); | |
| 6981 a->push(ae->upr); | |
| 6982 } | |
| 6983 else | |
| 6984 assert(!ae->upr); | |
| 6985 e = new CallExp(loc, e, a); | |
| 6986 e = e->semantic(sc); | |
| 6987 return e; | |
| 6988 } | |
| 6989 } | |
| 6990 } | |
| 6991 | |
| 6992 BinExp::semantic(sc); | |
| 6993 e2 = resolveProperties(sc, e2); | |
| 6994 assert(e1->type); | |
| 6995 | |
| 92 | 6996 /* Rewrite tuple assignment as a tuple of assignments. |
| 6997 */ | |
| 6998 if (e1->op == TOKtuple && e2->op == TOKtuple) | |
| 6999 { TupleExp *tup1 = (TupleExp *)e1; | |
| 7000 TupleExp *tup2 = (TupleExp *)e2; | |
| 7001 size_t dim = tup1->exps->dim; | |
| 7002 if (dim != tup2->exps->dim) | |
| 7003 { | |
| 7004 error("mismatched tuple lengths, %d and %d", (int)dim, (int)tup2->exps->dim); | |
| 7005 } | |
| 7006 else | |
| 7007 { Expressions *exps = new Expressions; | |
| 7008 exps->setDim(dim); | |
| 7009 | |
| 7010 for (int i = 0; i < dim; i++) | |
| 7011 { Expression *ex1 = (Expression *)tup1->exps->data[i]; | |
| 7012 Expression *ex2 = (Expression *)tup2->exps->data[i]; | |
| 7013 exps->data[i] = (void *) new AssignExp(loc, ex1, ex2); | |
| 7014 } | |
| 7015 Expression *e = new TupleExp(loc, exps); | |
| 7016 e = e->semantic(sc); | |
| 7017 return e; | |
| 7018 } | |
| 7019 } | |
| 7020 | |
| 1 | 7021 t1 = e1->type->toBasetype(); |
| 7022 | |
| 7023 if (t1->ty == Tfunction) | |
| 7024 { // Rewrite f=value to f(value) | |
| 7025 Expression *e; | |
| 7026 | |
| 7027 e = new CallExp(loc, e1, e2); | |
| 7028 e = e->semantic(sc); | |
| 7029 return e; | |
| 7030 } | |
| 7031 | |
| 7032 /* If it is an assignment from a 'foreign' type, | |
| 7033 * check for operator overloading. | |
| 7034 */ | |
| 7035 if (t1->ty == Tclass || t1->ty == Tstruct) | |
| 7036 { | |
| 7037 if (!e2->type->implicitConvTo(e1->type)) | |
| 7038 { | |
| 7039 Expression *e = op_overload(sc); | |
| 7040 if (e) | |
| 7041 return e; | |
| 7042 } | |
| 7043 } | |
| 7044 | |
| 7045 e2->rvalue(); | |
| 7046 | |
| 7047 if (e1->op == TOKarraylength) | |
| 7048 { | |
| 7049 // e1 is not an lvalue, but we let code generator handle it | |
| 7050 ArrayLengthExp *ale = (ArrayLengthExp *)e1; | |
| 7051 | |
| 7052 ale->e1 = ale->e1->modifiableLvalue(sc, NULL); | |
| 7053 } | |
| 7054 else if (e1->op == TOKslice) | |
| 7055 ; | |
| 7056 else | |
| 7057 { // Try to do a decent error message with the expression | |
| 7058 // before it got constant folded | |
| 7059 e1 = e1->modifiableLvalue(sc, e1old); | |
| 7060 } | |
| 7061 | |
| 7062 if (e1->op == TOKslice && | |
| 92 | 7063 t1->nextOf() && |
| 7064 e2->implicitConvTo(t1->nextOf()) | |
| 7065 // !(t1->nextOf()->equals(e2->type->nextOf())) | |
| 1 | 7066 ) |
| 7067 { // memset | |
| 92 | 7068 ismemset = 1; // make it easy for back end to tell what this is |
| 1 | 7069 e2 = e2->implicitCastTo(sc, t1->next); |
| 7070 } | |
| 7071 else if (t1->ty == Tsarray) | |
| 7072 { | |
| 7073 error("cannot assign to static array %s", e1->toChars()); | |
| 7074 } | |
| 7075 else | |
| 7076 { | |
| 7077 e2 = e2->implicitCastTo(sc, e1->type); | |
| 7078 } | |
| 7079 type = e1->type; | |
| 7080 assert(type); | |
| 7081 return this; | |
| 7082 } | |
| 7083 | |
| 7084 Expression *AssignExp::checkToBoolean() | |
| 7085 { | |
| 7086 // Things like: | |
| 7087 // if (a = b) ... | |
| 7088 // are usually mistakes. | |
| 7089 | |
| 7090 error("'=' does not give a boolean result"); | |
| 7091 return this; | |
| 7092 } | |
| 7093 | |
| 7094 /************************************************************/ | |
| 7095 | |
| 7096 AddAssignExp::AddAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7097 : BinExp(loc, TOKaddass, sizeof(AddAssignExp), e1, e2) | |
| 7098 { | |
| 7099 } | |
| 7100 | |
| 7101 Expression *AddAssignExp::semantic(Scope *sc) | |
| 7102 { Expression *e; | |
| 7103 | |
| 7104 if (type) | |
| 7105 return this; | |
| 7106 | |
| 7107 BinExp::semantic(sc); | |
| 7108 e2 = resolveProperties(sc, e2); | |
| 7109 | |
| 7110 e = op_overload(sc); | |
| 7111 if (e) | |
| 7112 return e; | |
| 7113 | |
| 7114 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7115 | |
| 7116 Type *tb1 = e1->type->toBasetype(); | |
| 7117 Type *tb2 = e2->type->toBasetype(); | |
| 7118 | |
| 7119 if ((tb1->ty == Tarray || tb1->ty == Tsarray) && | |
| 7120 (tb2->ty == Tarray || tb2->ty == Tsarray) && | |
| 7121 tb1->next->equals(tb2->next) | |
| 7122 ) | |
| 7123 { | |
| 7124 type = e1->type; | |
| 7125 e = this; | |
| 7126 } | |
| 7127 else | |
| 7128 { | |
| 7129 e1->checkScalar(); | |
| 7130 e1->checkNoBool(); | |
| 7131 if (tb1->ty == Tpointer && tb2->isintegral()) | |
| 7132 e = scaleFactor(sc); | |
| 7133 else if (tb1->ty == Tbit || tb1->ty == Tbool) | |
| 7134 { | |
| 7135 #if 0 | |
| 7136 // Need to rethink this | |
| 7137 if (e1->op != TOKvar) | |
| 7138 { // Rewrite e1+=e2 to (v=&e1),*v=*v+e2 | |
| 7139 VarDeclaration *v; | |
| 7140 Expression *ea; | |
| 7141 Expression *ex; | |
| 7142 | |
| 7143 char name[6+6+1]; | |
| 7144 Identifier *id; | |
| 7145 static int idn; | |
| 7146 sprintf(name, "__name%d", ++idn); | |
| 7147 id = Lexer::idPool(name); | |
| 7148 | |
| 7149 v = new VarDeclaration(loc, tb1->pointerTo(), id, NULL); | |
| 7150 v->semantic(sc); | |
| 7151 if (!sc->insert(v)) | |
| 7152 assert(0); | |
| 7153 v->parent = sc->func; | |
| 7154 | |
| 7155 ea = new AddrExp(loc, e1); | |
| 7156 ea = new AssignExp(loc, new VarExp(loc, v), ea); | |
| 7157 | |
| 7158 ex = new VarExp(loc, v); | |
| 7159 ex = new PtrExp(loc, ex); | |
| 7160 e = new AddExp(loc, ex, e2); | |
| 7161 e = new CastExp(loc, e, e1->type); | |
| 7162 e = new AssignExp(loc, ex->syntaxCopy(), e); | |
| 7163 | |
| 7164 e = new CommaExp(loc, ea, e); | |
| 7165 } | |
| 7166 else | |
| 7167 #endif | |
| 7168 { // Rewrite e1+=e2 to e1=e1+e2 | |
| 7169 // BUG: doesn't account for side effects in e1 | |
| 7170 // BUG: other assignment operators for bits aren't handled at all | |
| 7171 e = new AddExp(loc, e1, e2); | |
| 7172 e = new CastExp(loc, e, e1->type); | |
| 7173 e = new AssignExp(loc, e1->syntaxCopy(), e); | |
| 7174 } | |
| 7175 e = e->semantic(sc); | |
| 7176 } | |
| 7177 else | |
| 7178 { | |
| 7179 type = e1->type; | |
| 7180 typeCombine(sc); | |
| 7181 e1->checkArithmetic(); | |
| 7182 e2->checkArithmetic(); | |
| 7183 if (type->isreal() || type->isimaginary()) | |
| 7184 { | |
| 7185 assert(global.errors || e2->type->isfloating()); | |
| 7186 e2 = e2->castTo(sc, e1->type); | |
| 7187 } | |
| 7188 e = this; | |
| 7189 } | |
| 7190 } | |
| 7191 return e; | |
| 7192 } | |
| 7193 | |
| 7194 /************************************************************/ | |
| 7195 | |
| 7196 MinAssignExp::MinAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7197 : BinExp(loc, TOKminass, sizeof(MinAssignExp), e1, e2) | |
| 7198 { | |
| 7199 } | |
| 7200 | |
| 7201 Expression *MinAssignExp::semantic(Scope *sc) | |
| 7202 { Expression *e; | |
| 7203 | |
| 7204 if (type) | |
| 7205 return this; | |
| 7206 | |
| 7207 BinExp::semantic(sc); | |
| 7208 e2 = resolveProperties(sc, e2); | |
| 7209 | |
| 7210 e = op_overload(sc); | |
| 7211 if (e) | |
| 7212 return e; | |
| 7213 | |
| 7214 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7215 e1->checkScalar(); | |
| 7216 e1->checkNoBool(); | |
| 7217 if (e1->type->ty == Tpointer && e2->type->isintegral()) | |
| 7218 e = scaleFactor(sc); | |
| 7219 else | |
| 7220 { | |
| 92 | 7221 e1 = e1->checkArithmetic(); |
| 7222 e2 = e2->checkArithmetic(); | |
| 1 | 7223 type = e1->type; |
| 7224 typeCombine(sc); | |
| 7225 if (type->isreal() || type->isimaginary()) | |
| 7226 { | |
| 7227 assert(e2->type->isfloating()); | |
| 7228 e2 = e2->castTo(sc, e1->type); | |
| 7229 } | |
| 7230 e = this; | |
| 7231 } | |
| 7232 return e; | |
| 7233 } | |
| 7234 | |
| 7235 /************************************************************/ | |
| 7236 | |
| 7237 CatAssignExp::CatAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7238 : BinExp(loc, TOKcatass, sizeof(CatAssignExp), e1, e2) | |
| 7239 { | |
| 7240 } | |
| 7241 | |
| 7242 Expression *CatAssignExp::semantic(Scope *sc) | |
| 7243 { Expression *e; | |
| 7244 | |
| 7245 BinExp::semantic(sc); | |
| 7246 e2 = resolveProperties(sc, e2); | |
| 7247 | |
| 7248 e = op_overload(sc); | |
| 7249 if (e) | |
| 7250 return e; | |
| 7251 | |
| 7252 if (e1->op == TOKslice) | |
| 7253 { SliceExp *se = (SliceExp *)e1; | |
| 7254 | |
| 7255 if (se->e1->type->toBasetype()->ty == Tsarray) | |
| 7256 error("cannot append to static array %s", se->e1->type->toChars()); | |
| 7257 } | |
| 7258 | |
| 7259 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7260 | |
| 7261 Type *tb1 = e1->type->toBasetype(); | |
| 7262 Type *tb2 = e2->type->toBasetype(); | |
| 7263 | |
| 7264 if ((tb1->ty == Tarray) && | |
| 7265 (tb2->ty == Tarray || tb2->ty == Tsarray) && | |
| 7266 e2->implicitConvTo(e1->type) | |
| 7267 //e1->type->next->equals(e2->type->next) | |
| 7268 ) | |
| 7269 { // Append array | |
| 7270 e2 = e2->castTo(sc, e1->type); | |
| 7271 type = e1->type; | |
| 7272 e = this; | |
| 7273 } | |
| 7274 else if ((tb1->ty == Tarray) && | |
| 7275 e2->implicitConvTo(tb1->next) | |
| 7276 ) | |
| 7277 { // Append element | |
| 7278 e2 = e2->castTo(sc, tb1->next); | |
| 7279 type = e1->type; | |
| 7280 e = this; | |
| 7281 } | |
| 7282 else | |
| 7283 { | |
| 7284 error("cannot append type %s to type %s", tb2->toChars(), tb1->toChars()); | |
| 7285 type = Type::tint32; | |
| 7286 e = this; | |
| 7287 } | |
| 7288 return e; | |
| 7289 } | |
| 7290 | |
| 7291 /************************************************************/ | |
| 7292 | |
| 7293 MulAssignExp::MulAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7294 : BinExp(loc, TOKmulass, sizeof(MulAssignExp), e1, e2) | |
| 7295 { | |
| 7296 } | |
| 7297 | |
| 7298 Expression *MulAssignExp::semantic(Scope *sc) | |
| 7299 { Expression *e; | |
| 7300 | |
| 7301 BinExp::semantic(sc); | |
| 7302 e2 = resolveProperties(sc, e2); | |
| 7303 | |
| 7304 e = op_overload(sc); | |
| 7305 if (e) | |
| 7306 return e; | |
| 7307 | |
| 7308 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7309 e1->checkScalar(); | |
| 7310 e1->checkNoBool(); | |
| 7311 type = e1->type; | |
| 7312 typeCombine(sc); | |
| 7313 e1->checkArithmetic(); | |
| 7314 e2->checkArithmetic(); | |
| 7315 if (e2->type->isfloating()) | |
| 7316 { Type *t1; | |
| 7317 Type *t2; | |
| 7318 | |
| 7319 t1 = e1->type; | |
| 7320 t2 = e2->type; | |
| 7321 if (t1->isreal()) | |
| 7322 { | |
| 7323 if (t2->isimaginary() || t2->iscomplex()) | |
| 7324 { | |
| 7325 e2 = e2->castTo(sc, t1); | |
| 7326 } | |
| 7327 } | |
| 7328 else if (t1->isimaginary()) | |
| 7329 { | |
| 7330 if (t2->isimaginary() || t2->iscomplex()) | |
| 7331 { | |
| 7332 switch (t1->ty) | |
| 7333 { | |
| 7334 case Timaginary32: t2 = Type::tfloat32; break; | |
| 7335 case Timaginary64: t2 = Type::tfloat64; break; | |
| 7336 case Timaginary80: t2 = Type::tfloat80; break; | |
| 7337 default: | |
| 7338 assert(0); | |
| 7339 } | |
| 7340 e2 = e2->castTo(sc, t2); | |
| 7341 } | |
| 7342 } | |
| 7343 } | |
| 7344 return this; | |
| 7345 } | |
| 7346 | |
| 7347 /************************************************************/ | |
| 7348 | |
| 7349 DivAssignExp::DivAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7350 : BinExp(loc, TOKdivass, sizeof(DivAssignExp), e1, e2) | |
| 7351 { | |
| 7352 } | |
| 7353 | |
| 7354 Expression *DivAssignExp::semantic(Scope *sc) | |
| 7355 { Expression *e; | |
| 7356 | |
| 7357 BinExp::semantic(sc); | |
| 7358 e2 = resolveProperties(sc, e2); | |
| 7359 | |
| 7360 e = op_overload(sc); | |
| 7361 if (e) | |
| 7362 return e; | |
| 7363 | |
| 7364 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7365 e1->checkScalar(); | |
| 7366 e1->checkNoBool(); | |
| 7367 type = e1->type; | |
| 7368 typeCombine(sc); | |
| 7369 e1->checkArithmetic(); | |
| 7370 e2->checkArithmetic(); | |
| 7371 if (e2->type->isimaginary()) | |
| 7372 { Type *t1; | |
| 7373 Type *t2; | |
| 7374 | |
| 7375 t1 = e1->type; | |
| 7376 if (t1->isreal()) | |
| 7377 { // x/iv = i(-x/v) | |
| 7378 // Therefore, the result is 0 | |
| 7379 e2 = new CommaExp(loc, e2, new RealExp(loc, 0, t1)); | |
| 7380 e2->type = t1; | |
| 7381 e = new AssignExp(loc, e1, e2); | |
| 7382 e->type = t1; | |
| 7383 return e; | |
| 7384 } | |
| 7385 else if (t1->isimaginary()) | |
| 7386 { Expression *e; | |
| 7387 | |
| 7388 switch (t1->ty) | |
| 7389 { | |
| 7390 case Timaginary32: t2 = Type::tfloat32; break; | |
| 7391 case Timaginary64: t2 = Type::tfloat64; break; | |
| 7392 case Timaginary80: t2 = Type::tfloat80; break; | |
| 7393 default: | |
| 7394 assert(0); | |
| 7395 } | |
| 7396 e2 = e2->castTo(sc, t2); | |
| 7397 e = new AssignExp(loc, e1, e2); | |
| 7398 e->type = t1; | |
| 7399 return e; | |
| 7400 } | |
| 7401 } | |
| 7402 return this; | |
| 7403 } | |
| 7404 | |
| 7405 /************************************************************/ | |
| 7406 | |
| 7407 ModAssignExp::ModAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7408 : BinExp(loc, TOKmodass, sizeof(ModAssignExp), e1, e2) | |
| 7409 { | |
| 7410 } | |
| 7411 | |
| 7412 Expression *ModAssignExp::semantic(Scope *sc) | |
| 7413 { | |
| 7414 return commonSemanticAssign(sc); | |
| 7415 } | |
| 7416 | |
| 7417 /************************************************************/ | |
| 7418 | |
| 7419 ShlAssignExp::ShlAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7420 : BinExp(loc, TOKshlass, sizeof(ShlAssignExp), e1, e2) | |
| 7421 { | |
| 7422 } | |
| 7423 | |
| 7424 Expression *ShlAssignExp::semantic(Scope *sc) | |
| 7425 { Expression *e; | |
| 7426 | |
| 7427 //printf("ShlAssignExp::semantic()\n"); | |
| 7428 BinExp::semantic(sc); | |
| 7429 e2 = resolveProperties(sc, e2); | |
| 7430 | |
| 7431 e = op_overload(sc); | |
| 7432 if (e) | |
| 7433 return e; | |
| 7434 | |
| 7435 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7436 e1->checkScalar(); | |
| 7437 e1->checkNoBool(); | |
| 7438 type = e1->type; | |
| 7439 typeCombine(sc); | |
| 7440 e1->checkIntegral(); | |
| 7441 e2 = e2->checkIntegral(); | |
| 42 | 7442 //e2 = e2->castTo(sc, Type::tshiftcnt); |
| 7443 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 1 | 7444 return this; |
| 7445 } | |
| 7446 | |
| 7447 /************************************************************/ | |
| 7448 | |
| 7449 ShrAssignExp::ShrAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7450 : BinExp(loc, TOKshrass, sizeof(ShrAssignExp), e1, e2) | |
| 7451 { | |
| 7452 } | |
| 7453 | |
| 7454 Expression *ShrAssignExp::semantic(Scope *sc) | |
| 7455 { Expression *e; | |
| 7456 | |
| 7457 BinExp::semantic(sc); | |
| 7458 e2 = resolveProperties(sc, e2); | |
| 7459 | |
| 7460 e = op_overload(sc); | |
| 7461 if (e) | |
| 7462 return e; | |
| 7463 | |
| 7464 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7465 e1->checkScalar(); | |
| 7466 e1->checkNoBool(); | |
| 7467 type = e1->type; | |
| 7468 typeCombine(sc); | |
| 7469 e1->checkIntegral(); | |
| 7470 e2 = e2->checkIntegral(); | |
| 42 | 7471 //e2 = e2->castTo(sc, Type::tshiftcnt); |
| 7472 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 1 | 7473 return this; |
| 7474 } | |
| 7475 | |
| 7476 /************************************************************/ | |
| 7477 | |
| 7478 UshrAssignExp::UshrAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7479 : BinExp(loc, TOKushrass, sizeof(UshrAssignExp), e1, e2) | |
| 7480 { | |
| 7481 } | |
| 7482 | |
| 7483 Expression *UshrAssignExp::semantic(Scope *sc) | |
| 7484 { Expression *e; | |
| 7485 | |
| 7486 BinExp::semantic(sc); | |
| 7487 e2 = resolveProperties(sc, e2); | |
| 7488 | |
| 7489 e = op_overload(sc); | |
| 7490 if (e) | |
| 7491 return e; | |
| 7492 | |
| 7493 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7494 e1->checkScalar(); | |
| 7495 e1->checkNoBool(); | |
| 7496 type = e1->type; | |
| 7497 typeCombine(sc); | |
| 7498 e1->checkIntegral(); | |
| 7499 e2 = e2->checkIntegral(); | |
| 42 | 7500 //e2 = e2->castTo(sc, Type::tshiftcnt); |
| 7501 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 1 | 7502 return this; |
| 7503 } | |
| 7504 | |
| 7505 /************************************************************/ | |
| 7506 | |
| 7507 AndAssignExp::AndAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7508 : BinExp(loc, TOKandass, sizeof(AndAssignExp), e1, e2) | |
| 7509 { | |
| 7510 } | |
| 7511 | |
| 7512 Expression *AndAssignExp::semantic(Scope *sc) | |
| 7513 { | |
| 7514 return commonSemanticAssignIntegral(sc); | |
| 7515 } | |
| 7516 | |
| 7517 /************************************************************/ | |
| 7518 | |
| 7519 OrAssignExp::OrAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7520 : BinExp(loc, TOKorass, sizeof(OrAssignExp), e1, e2) | |
| 7521 { | |
| 7522 } | |
| 7523 | |
| 7524 Expression *OrAssignExp::semantic(Scope *sc) | |
| 7525 { | |
| 7526 return commonSemanticAssignIntegral(sc); | |
| 7527 } | |
| 7528 | |
| 7529 /************************************************************/ | |
| 7530 | |
| 7531 XorAssignExp::XorAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7532 : BinExp(loc, TOKxorass, sizeof(XorAssignExp), e1, e2) | |
| 7533 { | |
| 7534 } | |
| 7535 | |
| 7536 Expression *XorAssignExp::semantic(Scope *sc) | |
| 7537 { | |
| 7538 return commonSemanticAssignIntegral(sc); | |
| 7539 } | |
| 7540 | |
| 7541 /************************* AddExp *****************************/ | |
| 7542 | |
| 7543 AddExp::AddExp(Loc loc, Expression *e1, Expression *e2) | |
| 7544 : BinExp(loc, TOKadd, sizeof(AddExp), e1, e2) | |
| 7545 { | |
| 7546 } | |
| 7547 | |
| 7548 Expression *AddExp::semantic(Scope *sc) | |
| 7549 { Expression *e; | |
| 7550 | |
| 7551 #if LOGSEMANTIC | |
| 7552 printf("AddExp::semantic('%s')\n", toChars()); | |
| 7553 #endif | |
| 7554 if (!type) | |
| 7555 { | |
| 7556 BinExp::semanticp(sc); | |
| 7557 | |
| 7558 e = op_overload(sc); | |
| 7559 if (e) | |
| 7560 return e; | |
| 7561 | |
| 7562 Type *tb1 = e1->type->toBasetype(); | |
| 7563 Type *tb2 = e2->type->toBasetype(); | |
| 7564 | |
| 7565 if ((tb1->ty == Tarray || tb1->ty == Tsarray) && | |
| 7566 (tb2->ty == Tarray || tb2->ty == Tsarray) && | |
| 7567 tb1->next->equals(tb2->next) | |
| 7568 ) | |
| 7569 { | |
| 7570 type = e1->type; | |
| 7571 e = this; | |
| 7572 } | |
| 7573 else if (tb1->ty == Tpointer && e2->type->isintegral() || | |
| 7574 tb2->ty == Tpointer && e1->type->isintegral()) | |
| 7575 e = scaleFactor(sc); | |
| 7576 else if (tb1->ty == Tpointer && tb2->ty == Tpointer) | |
| 7577 { | |
| 7578 incompatibleTypes(); | |
| 7579 type = e1->type; | |
| 7580 e = this; | |
| 7581 } | |
| 7582 else | |
| 7583 { | |
| 7584 typeCombine(sc); | |
| 7585 if ((e1->type->isreal() && e2->type->isimaginary()) || | |
| 7586 (e1->type->isimaginary() && e2->type->isreal())) | |
| 7587 { | |
| 7588 switch (type->toBasetype()->ty) | |
| 7589 { | |
| 7590 case Tfloat32: | |
| 7591 case Timaginary32: | |
| 7592 type = Type::tcomplex32; | |
| 7593 break; | |
| 7594 | |
| 7595 case Tfloat64: | |
| 7596 case Timaginary64: | |
| 7597 type = Type::tcomplex64; | |
| 7598 break; | |
| 7599 | |
| 7600 case Tfloat80: | |
| 7601 case Timaginary80: | |
| 7602 type = Type::tcomplex80; | |
| 7603 break; | |
| 7604 | |
| 7605 default: | |
| 7606 assert(0); | |
| 7607 } | |
| 7608 } | |
| 7609 e = this; | |
| 7610 } | |
| 7611 return e; | |
| 7612 } | |
| 7613 return this; | |
| 7614 } | |
| 7615 | |
| 7616 /************************************************************/ | |
| 7617 | |
| 7618 MinExp::MinExp(Loc loc, Expression *e1, Expression *e2) | |
| 7619 : BinExp(loc, TOKmin, sizeof(MinExp), e1, e2) | |
| 7620 { | |
| 7621 } | |
| 7622 | |
| 7623 Expression *MinExp::semantic(Scope *sc) | |
| 7624 { Expression *e; | |
| 7625 Type *t1; | |
| 7626 Type *t2; | |
| 7627 | |
| 7628 #if LOGSEMANTIC | |
| 7629 printf("MinExp::semantic('%s')\n", toChars()); | |
| 7630 #endif | |
| 7631 if (type) | |
| 7632 return this; | |
| 7633 | |
| 7634 BinExp::semanticp(sc); | |
| 7635 | |
| 7636 e = op_overload(sc); | |
| 7637 if (e) | |
| 7638 return e; | |
| 7639 | |
| 7640 e = this; | |
| 7641 t1 = e1->type->toBasetype(); | |
| 7642 t2 = e2->type->toBasetype(); | |
| 7643 if (t1->ty == Tpointer) | |
| 7644 { | |
| 7645 if (t2->ty == Tpointer) | |
| 7646 { // Need to divide the result by the stride | |
| 7647 // Replace (ptr - ptr) with (ptr - ptr) / stride | |
| 7648 d_int64 stride; | |
| 7649 Expression *e; | |
| 7650 | |
| 7651 typeCombine(sc); // make sure pointer types are compatible | |
| 7652 type = Type::tptrdiff_t; | |
| 7653 stride = t2->next->size(); | |
| 7654 e = new DivExp(loc, this, new IntegerExp(0, stride, Type::tptrdiff_t)); | |
| 7655 e->type = Type::tptrdiff_t; | |
| 7656 return e; | |
| 7657 } | |
| 7658 else if (t2->isintegral()) | |
| 7659 e = scaleFactor(sc); | |
| 7660 else | |
| 7661 { error("incompatible types for -"); | |
| 7662 return new IntegerExp(0); | |
| 7663 } | |
| 7664 } | |
| 7665 else if (t2->ty == Tpointer) | |
| 7666 { | |
| 7667 type = e2->type; | |
| 7668 error("can't subtract pointer from %s", e1->type->toChars()); | |
| 7669 return new IntegerExp(0); | |
| 7670 } | |
| 7671 else | |
| 7672 { | |
| 7673 typeCombine(sc); | |
| 7674 t1 = e1->type->toBasetype(); | |
| 7675 t2 = e2->type->toBasetype(); | |
| 7676 if ((t1->isreal() && t2->isimaginary()) || | |
| 7677 (t1->isimaginary() && t2->isreal())) | |
| 7678 { | |
| 7679 switch (type->ty) | |
| 7680 { | |
| 7681 case Tfloat32: | |
| 7682 case Timaginary32: | |
| 7683 type = Type::tcomplex32; | |
| 7684 break; | |
| 7685 | |
| 7686 case Tfloat64: | |
| 7687 case Timaginary64: | |
| 7688 type = Type::tcomplex64; | |
| 7689 break; | |
| 7690 | |
| 7691 case Tfloat80: | |
| 7692 case Timaginary80: | |
| 7693 type = Type::tcomplex80; | |
| 7694 break; | |
| 7695 | |
| 7696 default: | |
| 7697 assert(0); | |
| 7698 } | |
| 7699 } | |
| 7700 } | |
| 7701 return e; | |
| 7702 } | |
| 7703 | |
| 7704 /************************* CatExp *****************************/ | |
| 7705 | |
| 7706 CatExp::CatExp(Loc loc, Expression *e1, Expression *e2) | |
| 7707 : BinExp(loc, TOKcat, sizeof(CatExp), e1, e2) | |
| 7708 { | |
| 7709 } | |
| 7710 | |
| 7711 Expression *CatExp::semantic(Scope *sc) | |
| 7712 { Expression *e; | |
| 7713 | |
| 7714 //printf("CatExp::semantic() %s\n", toChars()); | |
| 7715 if (!type) | |
| 7716 { | |
| 7717 BinExp::semanticp(sc); | |
| 7718 e = op_overload(sc); | |
| 7719 if (e) | |
| 7720 return e; | |
| 7721 | |
| 7722 Type *tb1 = e1->type->toBasetype(); | |
| 7723 Type *tb2 = e2->type->toBasetype(); | |
| 7724 | |
| 7725 | |
| 7726 /* BUG: Should handle things like: | |
| 7727 * char c; | |
| 7728 * c ~ ' ' | |
| 7729 * ' ' ~ c; | |
| 7730 */ | |
| 7731 | |
| 7732 #if 0 | |
| 7733 e1->type->print(); | |
| 7734 e2->type->print(); | |
| 7735 #endif | |
| 7736 if ((tb1->ty == Tsarray || tb1->ty == Tarray) && | |
| 7737 e2->type->equals(tb1->next)) | |
| 7738 { | |
| 7739 type = tb1->next->arrayOf(); | |
| 7740 if (tb2->ty == Tarray) | |
| 7741 { // Make e2 into [e2] | |
| 7742 e2 = new ArrayLiteralExp(e2->loc, e2); | |
| 7743 e2->type = type; | |
| 7744 } | |
| 7745 return this; | |
| 7746 } | |
| 7747 else if ((tb2->ty == Tsarray || tb2->ty == Tarray) && | |
| 7748 e1->type->equals(tb2->next)) | |
| 7749 { | |
| 7750 type = tb2->next->arrayOf(); | |
| 7751 if (tb1->ty == Tarray) | |
| 7752 { // Make e1 into [e1] | |
| 7753 e1 = new ArrayLiteralExp(e1->loc, e1); | |
| 7754 e1->type = type; | |
| 7755 } | |
| 7756 return this; | |
| 7757 } | |
| 7758 | |
| 7759 typeCombine(sc); | |
| 7760 | |
| 7761 if (type->toBasetype()->ty == Tsarray) | |
| 7762 type = type->toBasetype()->next->arrayOf(); | |
| 7763 #if 0 | |
| 7764 e1->type->print(); | |
| 7765 e2->type->print(); | |
| 7766 type->print(); | |
| 7767 print(); | |
| 7768 #endif | |
| 7769 if (e1->op == TOKstring && e2->op == TOKstring) | |
| 7770 e = optimize(WANTvalue); | |
| 7771 else if (e1->type->equals(e2->type) && | |
| 7772 (e1->type->toBasetype()->ty == Tarray || | |
| 7773 e1->type->toBasetype()->ty == Tsarray)) | |
| 7774 { | |
| 7775 e = this; | |
| 7776 } | |
| 7777 else | |
| 7778 { | |
| 7779 error("Can only concatenate arrays, not (%s ~ %s)", | |
| 7780 e1->type->toChars(), e2->type->toChars()); | |
| 7781 type = Type::tint32; | |
| 7782 e = this; | |
| 7783 } | |
| 7784 e->type = e->type->semantic(loc, sc); | |
| 7785 return e; | |
| 7786 } | |
| 7787 return this; | |
| 7788 } | |
| 7789 | |
| 7790 /************************************************************/ | |
| 7791 | |
| 7792 MulExp::MulExp(Loc loc, Expression *e1, Expression *e2) | |
| 7793 : BinExp(loc, TOKmul, sizeof(MulExp), e1, e2) | |
| 7794 { | |
| 7795 } | |
| 7796 | |
| 7797 Expression *MulExp::semantic(Scope *sc) | |
| 7798 { Expression *e; | |
| 7799 | |
| 7800 #if 0 | |
| 7801 printf("MulExp::semantic() %s\n", toChars()); | |
| 7802 #endif | |
| 7803 if (type) | |
| 7804 { | |
| 7805 return this; | |
| 7806 } | |
| 7807 | |
| 7808 BinExp::semanticp(sc); | |
| 7809 e = op_overload(sc); | |
| 7810 if (e) | |
| 7811 return e; | |
| 7812 | |
| 7813 typeCombine(sc); | |
| 7814 e1->checkArithmetic(); | |
| 7815 e2->checkArithmetic(); | |
| 7816 if (type->isfloating()) | |
| 7817 { Type *t1 = e1->type; | |
| 7818 Type *t2 = e2->type; | |
| 7819 | |
| 7820 if (t1->isreal()) | |
| 7821 { | |
| 7822 type = t2; | |
| 7823 } | |
| 7824 else if (t2->isreal()) | |
| 7825 { | |
| 7826 type = t1; | |
| 7827 } | |
| 7828 else if (t1->isimaginary()) | |
| 7829 { | |
| 7830 if (t2->isimaginary()) | |
| 7831 { Expression *e; | |
| 7832 | |
| 7833 switch (t1->ty) | |
| 7834 { | |
| 7835 case Timaginary32: type = Type::tfloat32; break; | |
| 7836 case Timaginary64: type = Type::tfloat64; break; | |
| 7837 case Timaginary80: type = Type::tfloat80; break; | |
| 7838 default: assert(0); | |
| 7839 } | |
| 7840 | |
| 7841 // iy * iv = -yv | |
| 7842 e1->type = type; | |
| 7843 e2->type = type; | |
| 7844 e = new NegExp(loc, this); | |
| 7845 e = e->semantic(sc); | |
| 7846 return e; | |
| 7847 } | |
| 7848 else | |
| 7849 type = t2; // t2 is complex | |
| 7850 } | |
| 7851 else if (t2->isimaginary()) | |
| 7852 { | |
| 7853 type = t1; // t1 is complex | |
| 7854 } | |
| 7855 } | |
| 7856 return this; | |
| 7857 } | |
| 7858 | |
| 7859 /************************************************************/ | |
| 7860 | |
| 7861 DivExp::DivExp(Loc loc, Expression *e1, Expression *e2) | |
| 7862 : BinExp(loc, TOKdiv, sizeof(DivExp), e1, e2) | |
| 7863 { | |
| 7864 } | |
| 7865 | |
| 7866 Expression *DivExp::semantic(Scope *sc) | |
| 7867 { Expression *e; | |
| 7868 | |
| 7869 if (type) | |
| 7870 return this; | |
| 7871 | |
| 7872 BinExp::semanticp(sc); | |
| 7873 e = op_overload(sc); | |
| 7874 if (e) | |
| 7875 return e; | |
| 7876 | |
| 7877 typeCombine(sc); | |
| 7878 e1->checkArithmetic(); | |
| 7879 e2->checkArithmetic(); | |
| 7880 if (type->isfloating()) | |
| 7881 { Type *t1 = e1->type; | |
| 7882 Type *t2 = e2->type; | |
| 7883 | |
| 7884 if (t1->isreal()) | |
| 7885 { | |
| 7886 type = t2; | |
| 7887 if (t2->isimaginary()) | |
| 7888 { Expression *e; | |
| 7889 | |
| 7890 // x/iv = i(-x/v) | |
| 7891 e2->type = t1; | |
| 7892 e = new NegExp(loc, this); | |
| 7893 e = e->semantic(sc); | |
| 7894 return e; | |
| 7895 } | |
| 7896 } | |
| 7897 else if (t2->isreal()) | |
| 7898 { | |
| 7899 type = t1; | |
| 7900 } | |
| 7901 else if (t1->isimaginary()) | |
| 7902 { | |
| 7903 if (t2->isimaginary()) | |
| 7904 { | |
| 7905 switch (t1->ty) | |
| 7906 { | |
| 7907 case Timaginary32: type = Type::tfloat32; break; | |
| 7908 case Timaginary64: type = Type::tfloat64; break; | |
| 7909 case Timaginary80: type = Type::tfloat80; break; | |
| 7910 default: assert(0); | |
| 7911 } | |
| 7912 } | |
| 7913 else | |
| 7914 type = t2; // t2 is complex | |
| 7915 } | |
| 7916 else if (t2->isimaginary()) | |
| 7917 { | |
| 7918 type = t1; // t1 is complex | |
| 7919 } | |
| 7920 } | |
| 7921 return this; | |
| 7922 } | |
| 7923 | |
| 7924 /************************************************************/ | |
| 7925 | |
| 7926 ModExp::ModExp(Loc loc, Expression *e1, Expression *e2) | |
| 7927 : BinExp(loc, TOKmod, sizeof(ModExp), e1, e2) | |
| 7928 { | |
| 7929 } | |
| 7930 | |
| 7931 Expression *ModExp::semantic(Scope *sc) | |
| 7932 { Expression *e; | |
| 7933 | |
| 7934 if (type) | |
| 7935 return this; | |
| 7936 | |
| 7937 BinExp::semanticp(sc); | |
| 7938 e = op_overload(sc); | |
| 7939 if (e) | |
| 7940 return e; | |
| 7941 | |
| 7942 typeCombine(sc); | |
| 7943 e1->checkArithmetic(); | |
| 7944 e2->checkArithmetic(); | |
| 7945 if (type->isfloating()) | |
| 7946 { type = e1->type; | |
| 7947 if (e2->type->iscomplex()) | |
| 7948 { error("cannot perform modulo complex arithmetic"); | |
| 7949 return new IntegerExp(0); | |
| 7950 } | |
| 7951 } | |
| 7952 return this; | |
| 7953 } | |
| 7954 | |
| 7955 /************************************************************/ | |
| 7956 | |
| 7957 ShlExp::ShlExp(Loc loc, Expression *e1, Expression *e2) | |
| 7958 : BinExp(loc, TOKshl, sizeof(ShlExp), e1, e2) | |
| 7959 { | |
| 7960 } | |
| 7961 | |
| 7962 Expression *ShlExp::semantic(Scope *sc) | |
| 7963 { Expression *e; | |
| 7964 | |
| 7965 //printf("ShlExp::semantic(), type = %p\n", type); | |
| 7966 if (!type) | |
| 7967 { BinExp::semanticp(sc); | |
| 7968 e = op_overload(sc); | |
| 7969 if (e) | |
| 7970 return e; | |
| 7971 e1 = e1->checkIntegral(); | |
| 7972 e2 = e2->checkIntegral(); | |
| 7973 e1 = e1->integralPromotions(sc); | |
| 42 | 7974 //e2 = e2->castTo(sc, Type::tshiftcnt); |
| 7975 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 1 | 7976 type = e1->type; |
| 7977 } | |
| 7978 return this; | |
| 7979 } | |
| 7980 | |
| 7981 /************************************************************/ | |
| 7982 | |
| 7983 ShrExp::ShrExp(Loc loc, Expression *e1, Expression *e2) | |
| 7984 : BinExp(loc, TOKshr, sizeof(ShrExp), e1, e2) | |
| 7985 { | |
| 7986 } | |
| 7987 | |
| 7988 Expression *ShrExp::semantic(Scope *sc) | |
| 7989 { Expression *e; | |
| 7990 | |
| 7991 if (!type) | |
| 7992 { BinExp::semanticp(sc); | |
| 7993 e = op_overload(sc); | |
| 7994 if (e) | |
| 7995 return e; | |
| 7996 e1 = e1->checkIntegral(); | |
| 7997 e2 = e2->checkIntegral(); | |
| 7998 e1 = e1->integralPromotions(sc); | |
| 42 | 7999 //e2 = e2->castTo(sc, Type::tshiftcnt); |
| 8000 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 1 | 8001 type = e1->type; |
| 8002 } | |
| 8003 return this; | |
| 8004 } | |
| 8005 | |
| 8006 /************************************************************/ | |
| 8007 | |
| 8008 UshrExp::UshrExp(Loc loc, Expression *e1, Expression *e2) | |
| 8009 : BinExp(loc, TOKushr, sizeof(UshrExp), e1, e2) | |
| 8010 { | |
| 8011 } | |
| 8012 | |
| 8013 Expression *UshrExp::semantic(Scope *sc) | |
| 8014 { Expression *e; | |
| 8015 | |
| 8016 if (!type) | |
| 8017 { BinExp::semanticp(sc); | |
| 8018 e = op_overload(sc); | |
| 8019 if (e) | |
| 8020 return e; | |
| 8021 e1 = e1->checkIntegral(); | |
| 8022 e2 = e2->checkIntegral(); | |
| 8023 e1 = e1->integralPromotions(sc); | |
| 42 | 8024 //e2 = e2->castTo(sc, Type::tshiftcnt); |
| 8025 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 1 | 8026 type = e1->type; |
| 8027 } | |
| 8028 return this; | |
| 8029 } | |
| 8030 | |
| 8031 /************************************************************/ | |
| 8032 | |
| 8033 AndExp::AndExp(Loc loc, Expression *e1, Expression *e2) | |
| 8034 : BinExp(loc, TOKand, sizeof(AndExp), e1, e2) | |
| 8035 { | |
| 8036 } | |
| 8037 | |
| 8038 Expression *AndExp::semantic(Scope *sc) | |
| 8039 { Expression *e; | |
| 8040 | |
| 8041 if (!type) | |
| 8042 { BinExp::semanticp(sc); | |
| 8043 e = op_overload(sc); | |
| 8044 if (e) | |
| 8045 return e; | |
| 8046 if (e1->type->toBasetype()->ty == Tbool && | |
| 8047 e2->type->toBasetype()->ty == Tbool) | |
| 8048 { | |
| 8049 type = e1->type; | |
| 8050 e = this; | |
| 8051 } | |
| 8052 else | |
| 8053 { | |
| 8054 typeCombine(sc); | |
| 8055 e1->checkIntegral(); | |
| 8056 e2->checkIntegral(); | |
| 8057 } | |
| 8058 } | |
| 8059 return this; | |
| 8060 } | |
| 8061 | |
| 8062 /************************************************************/ | |
| 8063 | |
| 8064 OrExp::OrExp(Loc loc, Expression *e1, Expression *e2) | |
| 8065 : BinExp(loc, TOKor, sizeof(OrExp), e1, e2) | |
| 8066 { | |
| 8067 } | |
| 8068 | |
| 8069 Expression *OrExp::semantic(Scope *sc) | |
| 8070 { Expression *e; | |
| 8071 | |
| 8072 if (!type) | |
| 8073 { BinExp::semanticp(sc); | |
| 8074 e = op_overload(sc); | |
| 8075 if (e) | |
| 8076 return e; | |
| 8077 if (e1->type->toBasetype()->ty == Tbool && | |
| 8078 e2->type->toBasetype()->ty == Tbool) | |
| 8079 { | |
| 8080 type = e1->type; | |
| 8081 e = this; | |
| 8082 } | |
| 8083 else | |
| 8084 { | |
| 8085 typeCombine(sc); | |
| 8086 e1->checkIntegral(); | |
| 8087 e2->checkIntegral(); | |
| 8088 } | |
| 8089 } | |
| 8090 return this; | |
| 8091 } | |
| 8092 | |
| 8093 /************************************************************/ | |
| 8094 | |
| 8095 XorExp::XorExp(Loc loc, Expression *e1, Expression *e2) | |
| 8096 : BinExp(loc, TOKxor, sizeof(XorExp), e1, e2) | |
| 8097 { | |
| 8098 } | |
| 8099 | |
| 8100 Expression *XorExp::semantic(Scope *sc) | |
| 8101 { Expression *e; | |
| 8102 | |
| 8103 if (!type) | |
| 8104 { BinExp::semanticp(sc); | |
| 8105 e = op_overload(sc); | |
| 8106 if (e) | |
| 8107 return e; | |
| 8108 if (e1->type->toBasetype()->ty == Tbool && | |
| 8109 e2->type->toBasetype()->ty == Tbool) | |
| 8110 { | |
| 8111 type = e1->type; | |
| 8112 e = this; | |
| 8113 } | |
| 8114 else | |
| 8115 { | |
| 8116 typeCombine(sc); | |
| 8117 e1->checkIntegral(); | |
| 8118 e2->checkIntegral(); | |
| 8119 } | |
| 8120 } | |
| 8121 return this; | |
| 8122 } | |
| 8123 | |
| 8124 | |
| 8125 /************************************************************/ | |
| 8126 | |
| 8127 OrOrExp::OrOrExp(Loc loc, Expression *e1, Expression *e2) | |
| 8128 : BinExp(loc, TOKoror, sizeof(OrOrExp), e1, e2) | |
| 8129 { | |
| 8130 } | |
| 8131 | |
| 8132 Expression *OrOrExp::semantic(Scope *sc) | |
| 8133 { | |
| 8134 unsigned cs1; | |
| 8135 | |
| 8136 // same as for AndAnd | |
| 8137 e1 = e1->semantic(sc); | |
| 8138 e1 = resolveProperties(sc, e1); | |
| 8139 e1 = e1->checkToPointer(); | |
| 8140 e1 = e1->checkToBoolean(); | |
| 8141 cs1 = sc->callSuper; | |
| 8142 | |
| 8143 if (sc->flags & SCOPEstaticif) | |
| 8144 { | |
| 8145 /* If in static if, don't evaluate e2 if we don't have to. | |
| 8146 */ | |
| 8147 e1 = e1->optimize(WANTflags); | |
| 8148 if (e1->isBool(TRUE)) | |
| 8149 { | |
| 8150 return new IntegerExp(loc, 1, Type::tboolean); | |
| 8151 } | |
| 8152 } | |
| 8153 | |
| 8154 e2 = e2->semantic(sc); | |
| 8155 sc->mergeCallSuper(loc, cs1); | |
| 8156 e2 = resolveProperties(sc, e2); | |
| 8157 e2 = e2->checkToPointer(); | |
| 8158 | |
| 8159 type = Type::tboolean; | |
| 8160 if (e1->type->ty == Tvoid) | |
| 8161 type = Type::tvoid; | |
| 8162 if (e2->op == TOKtype || e2->op == TOKimport) | |
| 8163 error("%s is not an expression", e2->toChars()); | |
| 8164 return this; | |
| 8165 } | |
| 8166 | |
| 8167 Expression *OrOrExp::checkToBoolean() | |
| 8168 { | |
| 8169 e2 = e2->checkToBoolean(); | |
| 8170 return this; | |
| 8171 } | |
| 8172 | |
| 8173 int OrOrExp::isBit() | |
| 8174 { | |
| 8175 return TRUE; | |
| 8176 } | |
| 8177 | |
| 8178 int OrOrExp::checkSideEffect(int flag) | |
| 8179 { | |
| 8180 if (flag == 2) | |
| 8181 { | |
| 8182 return e1->checkSideEffect(2) || e2->checkSideEffect(2); | |
| 8183 } | |
| 8184 else | |
| 8185 { e1->checkSideEffect(1); | |
| 8186 return e2->checkSideEffect(flag); | |
| 8187 } | |
| 8188 } | |
| 8189 | |
| 8190 /************************************************************/ | |
| 8191 | |
| 8192 AndAndExp::AndAndExp(Loc loc, Expression *e1, Expression *e2) | |
| 8193 : BinExp(loc, TOKandand, sizeof(AndAndExp), e1, e2) | |
| 8194 { | |
| 8195 } | |
| 8196 | |
| 8197 Expression *AndAndExp::semantic(Scope *sc) | |
| 8198 { | |
| 8199 unsigned cs1; | |
| 8200 | |
| 8201 // same as for OrOr | |
| 8202 e1 = e1->semantic(sc); | |
| 8203 e1 = resolveProperties(sc, e1); | |
| 8204 e1 = e1->checkToPointer(); | |
| 8205 e1 = e1->checkToBoolean(); | |
| 8206 cs1 = sc->callSuper; | |
| 8207 | |
| 8208 if (sc->flags & SCOPEstaticif) | |
| 8209 { | |
| 8210 /* If in static if, don't evaluate e2 if we don't have to. | |
| 8211 */ | |
| 8212 e1 = e1->optimize(WANTflags); | |
| 8213 if (e1->isBool(FALSE)) | |
| 8214 { | |
| 8215 return new IntegerExp(loc, 0, Type::tboolean); | |
| 8216 } | |
| 8217 } | |
| 8218 | |
| 8219 e2 = e2->semantic(sc); | |
| 8220 sc->mergeCallSuper(loc, cs1); | |
| 8221 e2 = resolveProperties(sc, e2); | |
| 8222 e2 = e2->checkToPointer(); | |
| 8223 | |
| 8224 type = Type::tboolean; | |
| 8225 if (e1->type->ty == Tvoid) | |
| 8226 type = Type::tvoid; | |
| 8227 if (e2->op == TOKtype || e2->op == TOKimport) | |
| 8228 error("%s is not an expression", e2->toChars()); | |
| 8229 return this; | |
| 8230 } | |
| 8231 | |
| 8232 Expression *AndAndExp::checkToBoolean() | |
| 8233 { | |
| 8234 e2 = e2->checkToBoolean(); | |
| 8235 return this; | |
| 8236 } | |
| 8237 | |
| 8238 int AndAndExp::isBit() | |
| 8239 { | |
| 8240 return TRUE; | |
| 8241 } | |
| 8242 | |
| 8243 int AndAndExp::checkSideEffect(int flag) | |
| 8244 { | |
| 8245 if (flag == 2) | |
| 8246 { | |
| 8247 return e1->checkSideEffect(2) || e2->checkSideEffect(2); | |
| 8248 } | |
| 8249 else | |
| 8250 { | |
| 8251 e1->checkSideEffect(1); | |
| 8252 return e2->checkSideEffect(flag); | |
| 8253 } | |
| 8254 } | |
| 8255 | |
| 8256 /************************************************************/ | |
| 8257 | |
| 8258 InExp::InExp(Loc loc, Expression *e1, Expression *e2) | |
| 8259 : BinExp(loc, TOKin, sizeof(InExp), e1, e2) | |
| 8260 { | |
| 8261 } | |
| 8262 | |
| 8263 Expression *InExp::semantic(Scope *sc) | |
| 8264 { Expression *e; | |
| 8265 | |
| 8266 if (type) | |
| 8267 return this; | |
| 8268 | |
| 8269 BinExp::semanticp(sc); | |
| 8270 e = op_overload(sc); | |
| 8271 if (e) | |
| 8272 return e; | |
| 8273 | |
| 8274 //type = Type::tboolean; | |
| 8275 Type *t2b = e2->type->toBasetype(); | |
| 8276 if (t2b->ty != Taarray) | |
| 8277 { | |
| 8278 error("rvalue of in expression must be an associative array, not %s", e2->type->toChars()); | |
| 8279 type = Type::terror; | |
| 8280 } | |
| 8281 else | |
| 8282 { | |
| 8283 TypeAArray *ta = (TypeAArray *)t2b; | |
| 8284 | |
| 8285 // Convert key to type of key | |
| 8286 e1 = e1->implicitCastTo(sc, ta->index); | |
| 8287 | |
| 8288 // Return type is pointer to value | |
| 8289 type = ta->next->pointerTo(); | |
| 8290 } | |
| 8291 return this; | |
| 8292 } | |
| 8293 | |
| 8294 int InExp::isBit() | |
| 8295 { | |
| 8296 return FALSE; | |
| 8297 } | |
| 8298 | |
| 8299 | |
| 8300 /************************************************************/ | |
| 8301 | |
| 8302 /* This deletes the key e1 from the associative array e2 | |
| 8303 */ | |
| 8304 | |
| 8305 RemoveExp::RemoveExp(Loc loc, Expression *e1, Expression *e2) | |
| 8306 : BinExp(loc, TOKremove, sizeof(RemoveExp), e1, e2) | |
| 8307 { | |
| 8308 type = Type::tvoid; | |
| 8309 } | |
| 8310 | |
| 8311 /************************************************************/ | |
| 8312 | |
| 8313 CmpExp::CmpExp(enum TOK op, Loc loc, Expression *e1, Expression *e2) | |
| 8314 : BinExp(loc, op, sizeof(CmpExp), e1, e2) | |
| 8315 { | |
| 8316 } | |
| 8317 | |
| 8318 Expression *CmpExp::semantic(Scope *sc) | |
| 8319 { Expression *e; | |
| 8320 Type *t1; | |
| 8321 Type *t2; | |
| 8322 | |
| 8323 #if LOGSEMANTIC | |
| 8324 printf("CmpExp::semantic('%s')\n", toChars()); | |
| 8325 #endif | |
| 8326 if (type) | |
| 8327 return this; | |
| 8328 | |
| 8329 BinExp::semanticp(sc); | |
| 8330 e = op_overload(sc); | |
| 8331 if (e) | |
| 8332 { | |
| 8333 e = new CmpExp(op, loc, e, new IntegerExp(loc, 0, Type::tint32)); | |
| 8334 e = e->semantic(sc); | |
| 8335 return e; | |
| 8336 } | |
| 8337 | |
| 8338 typeCombine(sc); | |
| 8339 type = Type::tboolean; | |
| 8340 | |
| 8341 // Special handling for array comparisons | |
| 8342 t1 = e1->type->toBasetype(); | |
| 8343 t2 = e2->type->toBasetype(); | |
| 8344 if ((t1->ty == Tarray || t1->ty == Tsarray) && | |
| 8345 (t2->ty == Tarray || t2->ty == Tsarray)) | |
| 8346 { | |
| 8347 if (!t1->next->equals(t2->next)) | |
| 8348 error("array comparison type mismatch, %s vs %s", t1->next->toChars(), t2->next->toChars()); | |
| 8349 e = this; | |
| 8350 } | |
| 8351 else if (t1->ty == Tstruct || t2->ty == Tstruct || | |
| 8352 (t1->ty == Tclass && t2->ty == Tclass)) | |
| 8353 { | |
| 8354 if (t2->ty == Tstruct) | |
| 8355 error("need member function opCmp() for %s %s to compare", t2->toDsymbol(sc)->kind(), t2->toChars()); | |
| 8356 else | |
| 8357 error("need member function opCmp() for %s %s to compare", t1->toDsymbol(sc)->kind(), t1->toChars()); | |
| 8358 e = this; | |
| 8359 } | |
| 8360 #if 1 | |
| 8361 else if (t1->iscomplex() || t2->iscomplex()) | |
| 8362 { | |
| 8363 error("compare not defined for complex operands"); | |
| 8364 e = new IntegerExp(0); | |
| 8365 } | |
| 8366 #endif | |
| 8367 else | |
| 8368 e = this; | |
| 8369 return e; | |
| 8370 } | |
| 8371 | |
| 8372 int CmpExp::isBit() | |
| 8373 { | |
| 8374 return TRUE; | |
| 8375 } | |
| 8376 | |
| 8377 | |
| 8378 /************************************************************/ | |
| 8379 | |
| 8380 EqualExp::EqualExp(enum TOK op, Loc loc, Expression *e1, Expression *e2) | |
| 8381 : BinExp(loc, op, sizeof(EqualExp), e1, e2) | |
| 8382 { | |
| 8383 } | |
| 8384 | |
| 8385 Expression *EqualExp::semantic(Scope *sc) | |
| 8386 { Expression *e; | |
| 8387 Type *t1; | |
| 8388 Type *t2; | |
| 8389 | |
| 8390 //printf("EqualExp::semantic('%s')\n", toChars()); | |
| 8391 if (type) | |
| 8392 return this; | |
| 8393 | |
| 8394 BinExp::semanticp(sc); | |
| 8395 | |
| 8396 /* Before checking for operator overloading, check to see if we're | |
| 8397 * comparing the addresses of two statics. If so, we can just see | |
| 8398 * if they are the same symbol. | |
| 8399 */ | |
| 8400 if (e1->op == TOKaddress && e2->op == TOKaddress) | |
| 8401 { AddrExp *ae1 = (AddrExp *)e1; | |
| 8402 AddrExp *ae2 = (AddrExp *)e2; | |
| 8403 | |
| 8404 if (ae1->e1->op == TOKvar && ae2->e1->op == TOKvar) | |
| 8405 { VarExp *ve1 = (VarExp *)ae1->e1; | |
| 8406 VarExp *ve2 = (VarExp *)ae2->e1; | |
| 8407 | |
| 8408 if (ve1->var == ve2->var /*|| ve1->var->toSymbol() == ve2->var->toSymbol()*/) | |
| 8409 { | |
| 8410 // They are the same, result is 'true' for ==, 'false' for != | |
| 8411 e = new IntegerExp(loc, (op == TOKequal), Type::tboolean); | |
| 8412 return e; | |
| 8413 } | |
| 8414 } | |
| 8415 } | |
| 8416 | |
| 8417 //if (e2->op != TOKnull) | |
| 8418 { | |
| 8419 e = op_overload(sc); | |
| 8420 if (e) | |
| 8421 { | |
| 8422 if (op == TOKnotequal) | |
| 8423 { | |
| 8424 e = new NotExp(e->loc, e); | |
| 8425 e = e->semantic(sc); | |
| 8426 } | |
| 8427 return e; | |
| 8428 } | |
| 8429 } | |
| 8430 | |
| 8431 e = typeCombine(sc); | |
| 8432 type = Type::tboolean; | |
| 8433 | |
| 8434 // Special handling for array comparisons | |
| 8435 t1 = e1->type->toBasetype(); | |
| 8436 t2 = e2->type->toBasetype(); | |
| 8437 if ((t1->ty == Tarray || t1->ty == Tsarray) && | |
| 8438 (t2->ty == Tarray || t2->ty == Tsarray)) | |
| 8439 { | |
| 8440 if (!t1->next->equals(t2->next)) | |
| 8441 error("array comparison type mismatch, %s vs %s", t1->next->toChars(), t2->next->toChars()); | |
| 8442 } | |
| 8443 else | |
| 8444 { | |
| 8445 if (e1->type != e2->type && e1->type->isfloating() && e2->type->isfloating()) | |
| 8446 { | |
| 8447 // Cast both to complex | |
| 8448 e1 = e1->castTo(sc, Type::tcomplex80); | |
| 8449 e2 = e2->castTo(sc, Type::tcomplex80); | |
| 8450 } | |
| 8451 } | |
| 8452 return e; | |
| 8453 } | |
| 8454 | |
| 8455 int EqualExp::isBit() | |
| 8456 { | |
| 8457 return TRUE; | |
| 8458 } | |
| 8459 | |
| 8460 | |
| 8461 | |
| 8462 /************************************************************/ | |
| 8463 | |
| 8464 IdentityExp::IdentityExp(enum TOK op, Loc loc, Expression *e1, Expression *e2) | |
| 8465 : BinExp(loc, op, sizeof(IdentityExp), e1, e2) | |
| 8466 { | |
| 8467 } | |
| 8468 | |
| 8469 Expression *IdentityExp::semantic(Scope *sc) | |
| 8470 { | |
| 8471 if (type) | |
| 8472 return this; | |
| 8473 | |
| 8474 BinExp::semanticp(sc); | |
| 8475 type = Type::tboolean; | |
| 8476 typeCombine(sc); | |
| 8477 if (e1->type != e2->type && e1->type->isfloating() && e2->type->isfloating()) | |
| 8478 { | |
| 8479 // Cast both to complex | |
| 8480 e1 = e1->castTo(sc, Type::tcomplex80); | |
| 8481 e2 = e2->castTo(sc, Type::tcomplex80); | |
| 8482 } | |
| 8483 return this; | |
| 8484 } | |
| 8485 | |
| 8486 int IdentityExp::isBit() | |
| 8487 { | |
| 8488 return TRUE; | |
| 8489 } | |
| 8490 | |
| 8491 | |
| 8492 /****************************************************************/ | |
| 8493 | |
| 8494 CondExp::CondExp(Loc loc, Expression *econd, Expression *e1, Expression *e2) | |
| 8495 : BinExp(loc, TOKquestion, sizeof(CondExp), e1, e2) | |
| 8496 { | |
| 8497 this->econd = econd; | |
| 8498 } | |
| 8499 | |
| 8500 Expression *CondExp::syntaxCopy() | |
| 8501 { | |
| 8502 return new CondExp(loc, econd->syntaxCopy(), e1->syntaxCopy(), e2->syntaxCopy()); | |
| 8503 } | |
| 8504 | |
| 8505 | |
| 8506 Expression *CondExp::semantic(Scope *sc) | |
| 8507 { Type *t1; | |
| 8508 Type *t2; | |
| 8509 unsigned cs0; | |
| 8510 unsigned cs1; | |
| 8511 | |
| 8512 #if LOGSEMANTIC | |
| 8513 printf("CondExp::semantic('%s')\n", toChars()); | |
| 8514 #endif | |
| 8515 if (type) | |
| 8516 return this; | |
| 8517 | |
| 8518 econd = econd->semantic(sc); | |
| 8519 econd = resolveProperties(sc, econd); | |
| 8520 econd = econd->checkToPointer(); | |
| 8521 econd = econd->checkToBoolean(); | |
| 8522 | |
| 8523 #if 0 /* this cannot work right because the types of e1 and e2 | |
| 8524 * both contribute to the type of the result. | |
| 8525 */ | |
| 8526 if (sc->flags & SCOPEstaticif) | |
| 8527 { | |
| 8528 /* If in static if, don't evaluate what we don't have to. | |
| 8529 */ | |
| 8530 econd = econd->optimize(WANTflags); | |
| 8531 if (econd->isBool(TRUE)) | |
| 8532 { | |
| 8533 e1 = e1->semantic(sc); | |
| 8534 e1 = resolveProperties(sc, e1); | |
| 8535 return e1; | |
| 8536 } | |
| 8537 else if (econd->isBool(FALSE)) | |
| 8538 { | |
| 8539 e2 = e2->semantic(sc); | |
| 8540 e2 = resolveProperties(sc, e2); | |
| 8541 return e2; | |
| 8542 } | |
| 8543 } | |
| 8544 #endif | |
| 8545 | |
| 8546 | |
| 8547 cs0 = sc->callSuper; | |
| 8548 e1 = e1->semantic(sc); | |
| 8549 e1 = resolveProperties(sc, e1); | |
| 8550 cs1 = sc->callSuper; | |
| 8551 sc->callSuper = cs0; | |
| 8552 e2 = e2->semantic(sc); | |
| 8553 e2 = resolveProperties(sc, e2); | |
| 8554 sc->mergeCallSuper(loc, cs1); | |
| 8555 | |
| 8556 | |
| 8557 // If either operand is void, the result is void | |
| 8558 t1 = e1->type; | |
| 8559 t2 = e2->type; | |
| 8560 if (t1->ty == Tvoid || t2->ty == Tvoid) | |
| 8561 type = Type::tvoid; | |
| 8562 else if (t1 == t2) | |
| 8563 type = t1; | |
| 8564 else | |
| 8565 { | |
| 8566 typeCombine(sc); | |
| 8567 switch (e1->type->toBasetype()->ty) | |
| 8568 { | |
| 8569 case Tcomplex32: | |
| 8570 case Tcomplex64: | |
| 8571 case Tcomplex80: | |
| 8572 e2 = e2->castTo(sc, e1->type); | |
| 8573 break; | |
| 8574 } | |
| 8575 switch (e2->type->toBasetype()->ty) | |
| 8576 { | |
| 8577 case Tcomplex32: | |
| 8578 case Tcomplex64: | |
| 8579 case Tcomplex80: | |
| 8580 e1 = e1->castTo(sc, e2->type); | |
| 8581 break; | |
| 8582 } | |
| 8583 } | |
| 8584 return this; | |
| 8585 } | |
| 8586 | |
| 8587 Expression *CondExp::toLvalue(Scope *sc, Expression *ex) | |
| 8588 { | |
| 8589 PtrExp *e; | |
| 8590 | |
| 8591 // convert (econd ? e1 : e2) to *(econd ? &e1 : &e2) | |
| 8592 e = new PtrExp(loc, this, type); | |
| 8593 | |
| 8594 e1 = e1->addressOf(sc); | |
| 8595 //e1 = e1->toLvalue(sc, NULL); | |
| 8596 | |
| 8597 e2 = e2->addressOf(sc); | |
| 8598 //e2 = e2->toLvalue(sc, NULL); | |
| 8599 | |
| 8600 typeCombine(sc); | |
| 8601 | |
| 8602 type = e2->type; | |
| 8603 return e; | |
| 8604 } | |
| 8605 | |
| 8606 Expression *CondExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 8607 { | |
| 8608 error("conditional expression %s is not a modifiable lvalue", toChars()); | |
| 8609 return this; | |
| 8610 } | |
| 8611 | |
| 8612 void CondExp::checkEscape() | |
| 8613 { | |
| 8614 e1->checkEscape(); | |
| 8615 e2->checkEscape(); | |
| 8616 } | |
| 8617 | |
| 8618 | |
| 8619 Expression *CondExp::checkToBoolean() | |
| 8620 { | |
| 8621 e1 = e1->checkToBoolean(); | |
| 8622 e2 = e2->checkToBoolean(); | |
| 8623 return this; | |
| 8624 } | |
| 8625 | |
| 8626 int CondExp::checkSideEffect(int flag) | |
| 8627 { | |
| 8628 if (flag == 2) | |
| 8629 { | |
| 8630 return econd->checkSideEffect(2) || | |
| 8631 e1->checkSideEffect(2) || | |
| 8632 e2->checkSideEffect(2); | |
| 8633 } | |
| 8634 else | |
| 8635 { | |
| 8636 econd->checkSideEffect(1); | |
| 8637 e1->checkSideEffect(flag); | |
| 8638 return e2->checkSideEffect(flag); | |
| 8639 } | |
| 8640 } | |
| 8641 | |
| 8642 void CondExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 8643 { | |
| 8644 expToCBuffer(buf, hgs, econd, PREC_oror); | |
| 8645 buf->writestring(" ? "); | |
| 8646 expToCBuffer(buf, hgs, e1, PREC_expr); | |
| 8647 buf->writestring(" : "); | |
| 8648 expToCBuffer(buf, hgs, e2, PREC_cond); | |
| 8649 } | |
| 8650 | |
| 8651 |