Mercurial > projects > ldc
annotate dmd/expression.c @ 57:a9d29e9f1fed trunk
[svn r61] Added support for D-style variadic functions :)
| author | lindquist |
|---|---|
| date | Thu, 25 Oct 2007 02:39:53 +0200 |
| parents | 0b9b286b67b6 |
| children | d8dd47ef3973 |
| 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 | |
| 855 void Expression::checkArithmetic() | |
| 856 { | |
| 857 if (!type->isintegral() && !type->isfloating()) | |
| 858 error("'%s' is not an arithmetic type", toChars()); | |
| 859 } | |
| 860 | |
| 861 void Expression::checkDeprecated(Scope *sc, Dsymbol *s) | |
| 862 { | |
| 863 s->checkDeprecated(loc, sc); | |
| 864 } | |
| 865 | |
| 866 /******************************** | |
| 867 * Check for expressions that have no use. | |
| 868 * Input: | |
| 869 * flag 0 not going to use the result, so issue error message if no | |
| 870 * side effects | |
| 871 * 1 the result of the expression is used, but still check | |
| 872 * for useless subexpressions | |
| 873 * 2 do not issue error messages, just return !=0 if expression | |
| 874 * has side effects | |
| 875 */ | |
| 876 | |
| 877 int Expression::checkSideEffect(int flag) | |
| 878 { | |
| 879 if (flag == 0) | |
| 880 { if (op == TOKimport) | |
| 881 { | |
| 882 error("%s has no effect", toChars()); | |
| 883 } | |
| 884 else | |
| 885 error("%s has no effect in expression (%s)", | |
| 886 Token::toChars(op), toChars()); | |
| 887 } | |
| 888 return 0; | |
| 889 } | |
| 890 | |
| 891 /***************************** | |
| 892 * Check that expression can be tested for true or false. | |
| 893 */ | |
| 894 | |
| 895 Expression *Expression::checkToBoolean() | |
| 896 { | |
| 897 // Default is 'yes' - do nothing | |
| 898 | |
| 899 #ifdef DEBUG | |
| 900 if (!type) | |
| 901 dump(0); | |
| 902 #endif | |
| 903 | |
| 904 if (!type->checkBoolean()) | |
| 905 { | |
| 906 error("expression %s of type %s does not have a boolean value", toChars(), type->toChars()); | |
| 907 } | |
| 908 return this; | |
| 909 } | |
| 910 | |
| 911 /**************************** | |
| 912 */ | |
| 913 | |
| 914 Expression *Expression::checkToPointer() | |
| 915 { | |
| 916 Expression *e; | |
| 917 Type *tb; | |
| 918 | |
| 919 //printf("Expression::checkToPointer()\n"); | |
| 920 e = this; | |
| 921 | |
| 922 // If C static array, convert to pointer | |
| 923 tb = type->toBasetype(); | |
| 924 if (tb->ty == Tsarray) | |
| 925 { TypeSArray *ts = (TypeSArray *)tb; | |
| 926 if (ts->size(loc) == 0) | |
| 927 e = new NullExp(loc); | |
| 928 else | |
| 929 e = new AddrExp(loc, this); | |
| 930 e->type = tb->next->pointerTo(); | |
| 931 } | |
| 932 return e; | |
| 933 } | |
| 934 | |
| 935 /****************************** | |
| 936 * Take address of expression. | |
| 937 */ | |
| 938 | |
| 939 Expression *Expression::addressOf(Scope *sc) | |
| 940 { | |
| 941 Expression *e; | |
| 942 | |
| 943 //printf("Expression::addressOf()\n"); | |
| 944 e = toLvalue(sc, NULL); | |
| 945 e = new AddrExp(loc, e); | |
| 946 e->type = type->pointerTo(); | |
| 947 return e; | |
| 948 } | |
| 949 | |
| 950 /****************************** | |
| 951 * If this is a reference, dereference it. | |
| 952 */ | |
| 953 | |
| 954 Expression *Expression::deref() | |
| 955 { | |
| 956 //printf("Expression::deref()\n"); | |
| 957 if (type->ty == Treference) | |
| 958 { Expression *e; | |
| 959 | |
| 960 e = new PtrExp(loc, this); | |
| 961 e->type = type->next; | |
| 962 return e; | |
| 963 } | |
| 964 return this; | |
| 965 } | |
| 966 | |
| 967 /******************************** | |
| 968 * Does this expression statically evaluate to a boolean TRUE or FALSE? | |
| 969 */ | |
| 970 | |
| 971 int Expression::isBool(int result) | |
| 972 { | |
| 973 return FALSE; | |
| 974 } | |
| 975 | |
| 976 /******************************** | |
| 977 * Does this expression result in either a 1 or a 0? | |
| 978 */ | |
| 979 | |
| 980 int Expression::isBit() | |
| 981 { | |
| 982 return FALSE; | |
| 983 } | |
| 984 | |
| 985 Expressions *Expression::arraySyntaxCopy(Expressions *exps) | |
| 986 { Expressions *a = NULL; | |
| 987 | |
| 988 if (exps) | |
| 989 { | |
| 990 a = new Expressions(); | |
| 991 a->setDim(exps->dim); | |
| 992 for (int i = 0; i < a->dim; i++) | |
| 993 { Expression *e = (Expression *)exps->data[i]; | |
| 994 | |
| 995 e = e->syntaxCopy(); | |
| 996 a->data[i] = e; | |
| 997 } | |
| 998 } | |
| 999 return a; | |
| 1000 } | |
| 1001 | |
| 1002 /******************************** IntegerExp **************************/ | |
| 1003 | |
| 1004 IntegerExp::IntegerExp(Loc loc, integer_t value, Type *type) | |
| 1005 : Expression(loc, TOKint64, sizeof(IntegerExp)) | |
| 1006 { | |
| 1007 //printf("IntegerExp(value = %lld, type = '%s')\n", value, type ? type->toChars() : ""); | |
| 1008 if (type && !type->isscalar()) | |
| 1009 { | |
| 1010 error("integral constant must be scalar type, not %s", type->toChars()); | |
| 1011 type = Type::terror; | |
| 1012 } | |
| 1013 this->type = type; | |
| 1014 this->value = value; | |
| 1015 } | |
| 1016 | |
| 1017 IntegerExp::IntegerExp(integer_t value) | |
| 1018 : Expression(0, TOKint64, sizeof(IntegerExp)) | |
| 1019 { | |
| 1020 this->type = Type::tint32; | |
| 1021 this->value = value; | |
| 1022 } | |
| 1023 | |
| 1024 int IntegerExp::equals(Object *o) | |
| 1025 { IntegerExp *ne; | |
| 1026 | |
| 1027 if (this == o || | |
| 1028 (((Expression *)o)->op == TOKint64 && | |
| 1029 ((ne = (IntegerExp *)o), type->equals(ne->type)) && | |
| 1030 value == ne->value)) | |
| 1031 return 1; | |
| 1032 return 0; | |
| 1033 } | |
| 1034 | |
| 1035 char *IntegerExp::toChars() | |
| 1036 { | |
| 1037 #if 1 | |
| 1038 return Expression::toChars(); | |
| 1039 #else | |
| 1040 static char buffer[sizeof(value) * 3 + 1]; | |
| 1041 | |
| 1042 sprintf(buffer, "%jd", value); | |
| 1043 return buffer; | |
| 1044 #endif | |
| 1045 } | |
| 1046 | |
| 1047 integer_t IntegerExp::toInteger() | |
| 1048 { Type *t; | |
| 1049 | |
| 1050 t = type; | |
| 1051 while (t) | |
| 1052 { | |
| 1053 switch (t->ty) | |
| 1054 { | |
| 1055 case Tbit: | |
| 1056 case Tbool: value = (value != 0); break; | |
| 1057 case Tint8: value = (d_int8) value; break; | |
| 1058 case Tchar: | |
| 1059 case Tuns8: value = (d_uns8) value; break; | |
| 1060 case Tint16: value = (d_int16) value; break; | |
| 1061 case Twchar: | |
| 1062 case Tuns16: value = (d_uns16) value; break; | |
| 1063 case Tint32: value = (d_int32) value; break; | |
| 1064 case Tpointer: | |
| 1065 case Tdchar: | |
| 1066 case Tuns32: value = (d_uns32) value; break; | |
| 1067 case Tint64: value = (d_int64) value; break; | |
| 1068 case Tuns64: value = (d_uns64) value; break; | |
| 1069 | |
| 1070 case Tenum: | |
| 1071 { | |
| 1072 TypeEnum *te = (TypeEnum *)t; | |
| 1073 t = te->sym->memtype; | |
| 1074 continue; | |
| 1075 } | |
| 1076 | |
| 1077 case Ttypedef: | |
| 1078 { | |
| 1079 TypeTypedef *tt = (TypeTypedef *)t; | |
| 1080 t = tt->sym->basetype; | |
| 1081 continue; | |
| 1082 } | |
| 1083 | |
| 1084 default: | |
| 1085 print(); | |
| 1086 type->print(); | |
| 1087 assert(0); | |
| 1088 break; | |
| 1089 } | |
| 1090 break; | |
| 1091 } | |
| 1092 return value; | |
| 1093 } | |
| 1094 | |
| 1095 real_t IntegerExp::toReal() | |
| 1096 { | |
| 1097 Type *t; | |
| 1098 | |
| 1099 toInteger(); | |
| 1100 t = type->toBasetype(); | |
| 1101 if (t->ty == Tuns64) | |
| 1102 return (real_t)(d_uns64)value; | |
| 1103 else | |
| 1104 return (real_t)(d_int64)value; | |
| 1105 } | |
| 1106 | |
| 1107 real_t IntegerExp::toImaginary() | |
| 1108 { | |
| 1109 return (real_t) 0; | |
| 1110 } | |
| 1111 | |
| 1112 complex_t IntegerExp::toComplex() | |
| 1113 { | |
| 1114 return toReal(); | |
| 1115 } | |
| 1116 | |
| 1117 int IntegerExp::isBool(int result) | |
| 1118 { | |
| 1119 return result ? value != 0 : value == 0; | |
| 1120 } | |
| 1121 | |
| 1122 Expression *IntegerExp::semantic(Scope *sc) | |
| 1123 { | |
| 1124 if (!type) | |
| 1125 { | |
| 1126 // Determine what the type of this number is | |
| 1127 integer_t number = value; | |
| 1128 | |
| 1129 if (number & 0x8000000000000000LL) | |
| 1130 type = Type::tuns64; | |
| 1131 else if (number & 0xFFFFFFFF80000000LL) | |
| 1132 type = Type::tint64; | |
| 1133 else | |
| 1134 type = Type::tint32; | |
| 1135 } | |
| 1136 else | |
| 1137 { type = type->semantic(loc, sc); | |
| 1138 } | |
| 1139 return this; | |
| 1140 } | |
| 1141 | |
| 1142 Expression *IntegerExp::toLvalue(Scope *sc, Expression *e) | |
| 1143 { | |
| 1144 if (!e) | |
| 1145 e = this; | |
| 1146 else if (!loc.filename) | |
| 1147 loc = e->loc; | |
| 1148 e->error("constant %s is not an lvalue", e->toChars()); | |
| 1149 return this; | |
| 1150 } | |
| 1151 | |
| 1152 void IntegerExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1153 { | |
| 1154 integer_t v = toInteger(); | |
| 1155 | |
| 1156 if (type) | |
| 1157 { Type *t = type; | |
| 1158 | |
| 1159 L1: | |
| 1160 switch (t->ty) | |
| 1161 { | |
| 1162 case Tenum: | |
| 1163 { TypeEnum *te = (TypeEnum *)t; | |
| 1164 buf->printf("cast(%s)", te->sym->toChars()); | |
| 1165 t = te->sym->memtype; | |
| 1166 goto L1; | |
| 1167 } | |
| 1168 | |
| 1169 case Ttypedef: | |
| 1170 { TypeTypedef *tt = (TypeTypedef *)t; | |
| 1171 buf->printf("cast(%s)", tt->sym->toChars()); | |
| 1172 t = tt->sym->basetype; | |
| 1173 goto L1; | |
| 1174 } | |
| 1175 | |
| 1176 case Twchar: // BUG: need to cast(wchar) | |
| 1177 case Tdchar: // BUG: need to cast(dchar) | |
| 1178 if ((uinteger_t)v > 0xFF) | |
| 1179 { | |
| 1180 buf->printf("'\\U%08x'", v); | |
| 1181 break; | |
| 1182 } | |
| 1183 case Tchar: | |
| 1184 if (v == '\'') | |
| 1185 buf->writestring("'\\''"); | |
| 1186 else if (isprint(v) && v != '\\') | |
| 1187 buf->printf("'%c'", (int)v); | |
| 1188 else | |
| 1189 buf->printf("'\\x%02x'", (int)v); | |
| 1190 break; | |
| 1191 | |
| 1192 case Tint8: | |
| 1193 buf->writestring("cast(byte)"); | |
| 1194 goto L2; | |
| 1195 | |
| 1196 case Tint16: | |
| 1197 buf->writestring("cast(short)"); | |
| 1198 goto L2; | |
| 1199 | |
| 1200 case Tint32: | |
| 1201 L2: | |
| 1202 buf->printf("%d", (int)v); | |
| 1203 break; | |
| 1204 | |
| 1205 case Tuns8: | |
| 1206 buf->writestring("cast(ubyte)"); | |
| 1207 goto L3; | |
| 1208 | |
| 1209 case Tuns16: | |
| 1210 buf->writestring("cast(ushort)"); | |
| 1211 goto L3; | |
| 1212 | |
| 1213 case Tuns32: | |
| 1214 L3: | |
| 1215 buf->printf("%du", (unsigned)v); | |
| 1216 break; | |
| 1217 | |
| 1218 case Tint64: | |
| 1219 buf->printf("%jdL", v); | |
| 1220 break; | |
| 1221 | |
| 1222 case Tuns64: | |
| 1223 buf->printf("%juLU", v); | |
| 1224 break; | |
| 1225 | |
| 1226 case Tbit: | |
| 1227 case Tbool: | |
| 1228 buf->writestring((char *)(v ? "true" : "false")); | |
| 1229 break; | |
| 1230 | |
| 1231 case Tpointer: | |
| 1232 buf->writestring("cast("); | |
| 1233 buf->writestring(t->toChars()); | |
| 1234 buf->writeByte(')'); | |
| 1235 goto L3; | |
| 1236 | |
| 1237 default: | |
| 1238 #ifdef DEBUG | |
| 1239 t->print(); | |
| 1240 #endif | |
| 1241 assert(0); | |
| 1242 } | |
| 1243 } | |
| 1244 else if (v & 0x8000000000000000LL) | |
| 1245 buf->printf("0x%jx", v); | |
| 1246 else | |
| 1247 buf->printf("%jd", v); | |
| 1248 } | |
| 1249 | |
| 1250 void IntegerExp::toMangleBuffer(OutBuffer *buf) | |
| 1251 { | |
| 1252 if ((sinteger_t)value < 0) | |
| 1253 buf->printf("N%jd", -value); | |
| 1254 else | |
| 1255 buf->printf("%jd", value); | |
| 1256 } | |
| 1257 | |
| 1258 /******************************** RealExp **************************/ | |
| 1259 | |
| 1260 RealExp::RealExp(Loc loc, real_t value, Type *type) | |
| 1261 : Expression(loc, TOKfloat64, sizeof(RealExp)) | |
| 1262 { | |
| 1263 //printf("RealExp::RealExp(%Lg)\n", value); | |
| 1264 this->value = value; | |
| 1265 this->type = type; | |
| 1266 } | |
| 1267 | |
| 1268 char *RealExp::toChars() | |
| 1269 { | |
| 1270 static char buffer[sizeof(value) * 3 + 8 + 1 + 1]; | |
| 1271 | |
| 1272 #ifdef IN_GCC | |
| 1273 value.format(buffer, sizeof(buffer)); | |
| 1274 if (type->isimaginary()) | |
| 1275 strcat(buffer, "i"); | |
| 1276 #else | |
| 1277 sprintf(buffer, type->isimaginary() ? "%Lgi" : "%Lg", value); | |
| 1278 #endif | |
| 1279 assert(strlen(buffer) < sizeof(buffer)); | |
| 1280 return buffer; | |
| 1281 } | |
| 1282 | |
| 1283 integer_t RealExp::toInteger() | |
| 1284 { | |
| 1285 #ifdef IN_GCC | |
| 1286 return toReal().toInt(); | |
| 1287 #else | |
| 1288 return (sinteger_t) toReal(); | |
| 1289 #endif | |
| 1290 } | |
| 1291 | |
| 1292 uinteger_t RealExp::toUInteger() | |
| 1293 { | |
| 1294 #ifdef IN_GCC | |
| 1295 return (uinteger_t) toReal().toInt(); | |
| 1296 #else | |
| 1297 return (uinteger_t) toReal(); | |
| 1298 #endif | |
| 1299 } | |
| 1300 | |
| 1301 real_t RealExp::toReal() | |
| 1302 { | |
| 1303 return type->isreal() ? value : 0; | |
| 1304 } | |
| 1305 | |
| 1306 real_t RealExp::toImaginary() | |
| 1307 { | |
| 1308 return type->isreal() ? 0 : value; | |
| 1309 } | |
| 1310 | |
| 1311 complex_t RealExp::toComplex() | |
| 1312 { | |
| 1313 #ifdef __DMC__ | |
| 1314 return toReal() + toImaginary() * I; | |
| 1315 #else | |
| 1316 return complex_t(toReal(), toImaginary()); | |
| 1317 #endif | |
| 1318 } | |
| 1319 | |
| 1320 /******************************** | |
| 1321 * Test to see if two reals are the same. | |
| 1322 * Regard NaN's as equivalent. | |
| 1323 * Regard +0 and -0 as different. | |
| 1324 */ | |
| 1325 | |
| 1326 int RealEquals(real_t x1, real_t x2) | |
| 1327 { | |
| 1328 return (isnan(x1) && isnan(x2)) || | |
| 1329 /* In some cases, the REALPAD bytes get garbage in them, | |
| 1330 * so be sure and ignore them. | |
| 1331 */ | |
| 1332 memcmp(&x1, &x2, REALSIZE - REALPAD) == 0; | |
| 1333 } | |
| 1334 | |
| 1335 int RealExp::equals(Object *o) | |
| 1336 { RealExp *ne; | |
| 1337 | |
| 1338 if (this == o || | |
| 1339 (((Expression *)o)->op == TOKfloat64 && | |
| 1340 ((ne = (RealExp *)o), type->equals(ne->type)) && | |
| 1341 RealEquals(value, ne->value) | |
| 1342 ) | |
| 1343 ) | |
| 1344 return 1; | |
| 1345 return 0; | |
| 1346 } | |
| 1347 | |
| 1348 Expression *RealExp::semantic(Scope *sc) | |
| 1349 { | |
| 1350 if (!type) | |
| 1351 type = Type::tfloat64; | |
| 1352 else | |
| 1353 type = type->semantic(loc, sc); | |
| 1354 return this; | |
| 1355 } | |
| 1356 | |
| 1357 int RealExp::isBool(int result) | |
| 1358 { | |
| 1359 #ifdef IN_GCC | |
| 1360 return result ? (! value.isZero()) : (value.isZero()); | |
| 1361 #else | |
| 1362 return result ? (value != 0) | |
| 1363 : (value == 0); | |
| 1364 #endif | |
| 1365 } | |
| 1366 | |
| 1367 void floatToBuffer(OutBuffer *buf, Type *type, real_t value) | |
| 1368 { | |
| 1369 /* In order to get an exact representation, try converting it | |
| 1370 * to decimal then back again. If it matches, use it. | |
| 1371 * If it doesn't, fall back to hex, which is | |
| 1372 * always exact. | |
| 1373 */ | |
| 1374 char buffer[25]; | |
| 1375 sprintf(buffer, "%Lg", value); | |
| 1376 assert(strlen(buffer) < sizeof(buffer)); | |
| 1377 #if _WIN32 && __DMC__ | |
| 1378 char *save = __locale_decpoint; | |
| 1379 __locale_decpoint = "."; | |
| 1380 real_t r = strtold(buffer, NULL); | |
| 1381 __locale_decpoint = save; | |
| 1382 #else | |
| 1383 real_t r = strtold(buffer, NULL); | |
| 1384 #endif | |
| 1385 if (r == value) // if exact duplication | |
| 1386 buf->writestring(buffer); | |
| 1387 else | |
| 1388 buf->printf("%La", value); // ensure exact duplication | |
| 1389 | |
| 1390 if (type) | |
| 1391 { | |
| 1392 Type *t = type->toBasetype(); | |
| 1393 switch (t->ty) | |
| 1394 { | |
| 1395 case Tfloat32: | |
| 1396 case Timaginary32: | |
| 1397 case Tcomplex32: | |
| 1398 buf->writeByte('F'); | |
| 1399 break; | |
| 1400 | |
| 1401 case Tfloat80: | |
| 1402 case Timaginary80: | |
| 1403 case Tcomplex80: | |
| 1404 buf->writeByte('L'); | |
| 1405 break; | |
| 1406 | |
| 1407 default: | |
| 1408 break; | |
| 1409 } | |
| 1410 if (t->isimaginary()) | |
| 1411 buf->writeByte('i'); | |
| 1412 } | |
| 1413 } | |
| 1414 | |
| 1415 void RealExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1416 { | |
| 1417 floatToBuffer(buf, type, value); | |
| 1418 } | |
| 1419 | |
| 1420 void realToMangleBuffer(OutBuffer *buf, real_t value) | |
| 1421 { | |
| 1422 /* Rely on %A to get portable mangling. | |
| 1423 * Must munge result to get only identifier characters. | |
| 1424 * | |
| 1425 * Possible values from %A => mangled result | |
| 1426 * NAN => NAN | |
| 1427 * -INF => NINF | |
| 1428 * INF => INF | |
| 1429 * -0X1.1BC18BA997B95P+79 => N11BC18BA997B95P79 | |
| 1430 * 0X1.9P+2 => 19P2 | |
| 1431 */ | |
| 1432 | |
| 1433 if (isnan(value)) | |
| 1434 buf->writestring("NAN"); // no -NAN bugs | |
| 1435 else | |
| 1436 { | |
| 1437 char buffer[32]; | |
| 1438 int n = sprintf(buffer, "%LA", value); | |
| 1439 assert(n > 0 && n < sizeof(buffer)); | |
| 1440 for (int i = 0; i < n; i++) | |
| 1441 { char c = buffer[i]; | |
| 1442 | |
| 1443 switch (c) | |
| 1444 { | |
| 1445 case '-': | |
| 1446 buf->writeByte('N'); | |
| 1447 break; | |
| 1448 | |
| 1449 case '+': | |
| 1450 case 'X': | |
| 1451 case '.': | |
| 1452 break; | |
| 1453 | |
| 1454 case '0': | |
| 1455 if (i < 2) | |
| 1456 break; // skip leading 0X | |
| 1457 default: | |
| 1458 buf->writeByte(c); | |
| 1459 break; | |
| 1460 } | |
| 1461 } | |
| 1462 } | |
| 1463 } | |
| 1464 | |
| 1465 void RealExp::toMangleBuffer(OutBuffer *buf) | |
| 1466 { | |
| 1467 buf->writeByte('e'); | |
| 1468 realToMangleBuffer(buf, value); | |
| 1469 } | |
| 1470 | |
| 1471 | |
| 1472 /******************************** ComplexExp **************************/ | |
| 1473 | |
| 1474 ComplexExp::ComplexExp(Loc loc, complex_t value, Type *type) | |
| 1475 : Expression(loc, TOKcomplex80, sizeof(ComplexExp)) | |
| 1476 { | |
| 1477 this->value = value; | |
| 1478 this->type = type; | |
| 1479 //printf("ComplexExp::ComplexExp(%s)\n", toChars()); | |
| 1480 } | |
| 1481 | |
| 1482 char *ComplexExp::toChars() | |
| 1483 { | |
| 1484 static char buffer[sizeof(value) * 3 + 8 + 1]; | |
| 1485 | |
| 1486 #ifdef IN_GCC | |
| 1487 char buf1[sizeof(value) * 3 + 8 + 1]; | |
| 1488 char buf2[sizeof(value) * 3 + 8 + 1]; | |
| 1489 creall(value).format(buf1, sizeof(buf1)); | |
| 1490 cimagl(value).format(buf2, sizeof(buf2)); | |
| 1491 sprintf(buffer, "(%s+%si)", buf1, buf2); | |
| 1492 #else | |
| 1493 sprintf(buffer, "(%Lg+%Lgi)", creall(value), cimagl(value)); | |
| 1494 assert(strlen(buffer) < sizeof(buffer)); | |
| 1495 #endif | |
| 1496 return buffer; | |
| 1497 } | |
| 1498 | |
| 1499 integer_t ComplexExp::toInteger() | |
| 1500 { | |
| 1501 #ifdef IN_GCC | |
| 1502 return (sinteger_t) toReal().toInt(); | |
| 1503 #else | |
| 1504 return (sinteger_t) toReal(); | |
| 1505 #endif | |
| 1506 } | |
| 1507 | |
| 1508 uinteger_t ComplexExp::toUInteger() | |
| 1509 { | |
| 1510 #ifdef IN_GCC | |
| 1511 return (uinteger_t) toReal().toInt(); | |
| 1512 #else | |
| 1513 return (uinteger_t) toReal(); | |
| 1514 #endif | |
| 1515 } | |
| 1516 | |
| 1517 real_t ComplexExp::toReal() | |
| 1518 { | |
| 1519 return creall(value); | |
| 1520 } | |
| 1521 | |
| 1522 real_t ComplexExp::toImaginary() | |
| 1523 { | |
| 1524 return cimagl(value); | |
| 1525 } | |
| 1526 | |
| 1527 complex_t ComplexExp::toComplex() | |
| 1528 { | |
| 1529 return value; | |
| 1530 } | |
| 1531 | |
| 1532 int ComplexExp::equals(Object *o) | |
| 1533 { ComplexExp *ne; | |
| 1534 | |
| 1535 if (this == o || | |
| 1536 (((Expression *)o)->op == TOKcomplex80 && | |
| 1537 ((ne = (ComplexExp *)o), type->equals(ne->type)) && | |
| 1538 RealEquals(creall(value), creall(ne->value)) && | |
| 1539 RealEquals(cimagl(value), cimagl(ne->value)) | |
| 1540 ) | |
| 1541 ) | |
| 1542 return 1; | |
| 1543 return 0; | |
| 1544 } | |
| 1545 | |
| 1546 Expression *ComplexExp::semantic(Scope *sc) | |
| 1547 { | |
| 1548 if (!type) | |
| 1549 type = Type::tcomplex80; | |
| 1550 else | |
| 1551 type = type->semantic(loc, sc); | |
| 1552 return this; | |
| 1553 } | |
| 1554 | |
| 1555 int ComplexExp::isBool(int result) | |
| 1556 { | |
| 1557 if (result) | |
| 1558 return (bool)(value); | |
| 1559 else | |
| 1560 return !value; | |
| 1561 } | |
| 1562 | |
| 1563 void ComplexExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1564 { | |
| 1565 /* Print as: | |
| 1566 * (re+imi) | |
| 1567 */ | |
| 1568 #ifdef IN_GCC | |
| 1569 char buf1[sizeof(value) * 3 + 8 + 1]; | |
| 1570 char buf2[sizeof(value) * 3 + 8 + 1]; | |
| 1571 creall(value).format(buf1, sizeof(buf1)); | |
| 1572 cimagl(value).format(buf2, sizeof(buf2)); | |
| 1573 buf->printf("(%s+%si)", buf1, buf2); | |
| 1574 #else | |
| 1575 buf->writeByte('('); | |
| 1576 floatToBuffer(buf, type, creall(value)); | |
| 1577 buf->writeByte('+'); | |
| 1578 floatToBuffer(buf, type, cimagl(value)); | |
| 1579 buf->writestring("i)"); | |
| 1580 #endif | |
| 1581 } | |
| 1582 | |
| 1583 void ComplexExp::toMangleBuffer(OutBuffer *buf) | |
| 1584 { | |
| 1585 buf->writeByte('c'); | |
| 1586 real_t r = toReal(); | |
| 1587 realToMangleBuffer(buf, r); | |
| 1588 buf->writeByte('c'); // separate the two | |
| 1589 r = toImaginary(); | |
| 1590 realToMangleBuffer(buf, r); | |
| 1591 } | |
| 1592 | |
| 1593 /******************************** IdentifierExp **************************/ | |
| 1594 | |
| 1595 IdentifierExp::IdentifierExp(Loc loc, Identifier *ident) | |
| 1596 : Expression(loc, TOKidentifier, sizeof(IdentifierExp)) | |
| 1597 { | |
| 1598 this->ident = ident; | |
| 1599 } | |
| 1600 | |
| 1601 Expression *IdentifierExp::semantic(Scope *sc) | |
| 1602 { | |
| 1603 Dsymbol *s; | |
| 1604 Dsymbol *scopesym; | |
| 1605 | |
| 1606 #if LOGSEMANTIC | |
| 1607 printf("IdentifierExp::semantic('%s')\n", ident->toChars()); | |
| 1608 #endif | |
| 1609 s = sc->search(loc, ident, &scopesym); | |
| 1610 if (s) | |
| 1611 { Expression *e; | |
| 1612 WithScopeSymbol *withsym; | |
| 1613 | |
| 1614 // See if it was a with class | |
| 1615 withsym = scopesym->isWithScopeSymbol(); | |
| 1616 if (withsym) | |
| 1617 { | |
| 1618 s = s->toAlias(); | |
| 1619 | |
| 1620 // Same as wthis.ident | |
| 1621 if (s->needThis() || s->isTemplateDeclaration()) | |
| 1622 { | |
| 1623 e = new VarExp(loc, withsym->withstate->wthis); | |
| 1624 e = new DotIdExp(loc, e, ident); | |
| 1625 } | |
| 1626 else | |
| 1627 { Type *t = withsym->withstate->wthis->type; | |
| 1628 if (t->ty == Tpointer) | |
| 1629 t = t->next; | |
| 1630 e = new TypeDotIdExp(loc, t, ident); | |
| 1631 } | |
| 1632 } | |
| 1633 else | |
| 1634 { | |
| 1635 if (!s->parent && scopesym->isArrayScopeSymbol()) | |
| 1636 { // Kludge to run semantic() here because | |
| 1637 // ArrayScopeSymbol::search() doesn't have access to sc. | |
| 1638 s->semantic(sc); | |
| 1639 } | |
| 1640 // Look to see if f is really a function template | |
| 1641 FuncDeclaration *f = s->isFuncDeclaration(); | |
| 1642 if (f && f->parent) | |
| 1643 { TemplateInstance *ti = f->parent->isTemplateInstance(); | |
| 1644 | |
| 1645 if (ti && | |
| 1646 !ti->isTemplateMixin() && | |
| 1647 (ti->name == f->ident || | |
| 1648 ti->toAlias()->ident == f->ident) | |
| 1649 && | |
| 1650 ti->tempdecl && ti->tempdecl->onemember) | |
| 1651 { | |
| 1652 TemplateDeclaration *tempdecl = ti->tempdecl; | |
| 1653 if (tempdecl->overroot) // if not start of overloaded list of TemplateDeclaration's | |
| 1654 tempdecl = tempdecl->overroot; // then get the start | |
| 1655 e = new TemplateExp(loc, tempdecl); | |
| 1656 e = e->semantic(sc); | |
| 1657 return e; | |
| 1658 } | |
| 1659 } | |
| 1660 e = new DsymbolExp(loc, s); | |
| 1661 } | |
| 1662 return e->semantic(sc); | |
| 1663 } | |
| 1664 error("undefined identifier %s", ident->toChars()); | |
| 1665 type = Type::terror; | |
| 1666 return this; | |
| 1667 } | |
| 1668 | |
| 1669 char *IdentifierExp::toChars() | |
| 1670 { | |
| 1671 return ident->toChars(); | |
| 1672 } | |
| 1673 | |
| 1674 void IdentifierExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1675 { | |
| 1676 if (hgs->hdrgen) | |
| 1677 buf->writestring(ident->toHChars2()); | |
| 1678 else | |
| 1679 buf->writestring(ident->toChars()); | |
| 1680 } | |
| 1681 | |
| 1682 Expression *IdentifierExp::toLvalue(Scope *sc, Expression *e) | |
| 1683 { | |
| 1684 #if 0 | |
| 1685 tym = tybasic(e1->ET->Tty); | |
| 1686 if (!(tyscalar(tym) || | |
| 1687 tym == TYstruct || | |
| 1688 tym == TYarray && e->Eoper == TOKaddr)) | |
| 1689 synerr(EM_lvalue); // lvalue expected | |
| 1690 #endif | |
| 1691 return this; | |
| 1692 } | |
| 1693 | |
| 1694 /******************************** DollarExp **************************/ | |
| 1695 | |
| 1696 DollarExp::DollarExp(Loc loc) | |
| 1697 : IdentifierExp(loc, Id::dollar) | |
| 1698 { | |
| 1699 } | |
| 1700 | |
| 1701 /******************************** DsymbolExp **************************/ | |
| 1702 | |
| 1703 DsymbolExp::DsymbolExp(Loc loc, Dsymbol *s) | |
| 1704 : Expression(loc, TOKdsymbol, sizeof(DsymbolExp)) | |
| 1705 { | |
| 1706 this->s = s; | |
| 1707 } | |
| 1708 | |
| 1709 Expression *DsymbolExp::semantic(Scope *sc) | |
| 1710 { | |
| 1711 #if LOGSEMANTIC | |
| 1712 printf("DsymbolExp::semantic('%s')\n", s->toChars()); | |
| 1713 #endif | |
| 1714 | |
| 1715 Lagain: | |
| 1716 EnumMember *em; | |
| 1717 Expression *e; | |
| 1718 VarDeclaration *v; | |
| 1719 FuncDeclaration *f; | |
| 1720 FuncLiteralDeclaration *fld; | |
| 1721 Declaration *d; | |
| 1722 ClassDeclaration *cd; | |
| 1723 ClassDeclaration *thiscd = NULL; | |
| 1724 Import *imp; | |
| 1725 Package *pkg; | |
| 1726 Type *t; | |
| 1727 | |
| 1728 //printf("DsymbolExp:: %p '%s' is a symbol\n", this, toChars()); | |
| 1729 //printf("s = '%s', s->kind = '%s'\n", s->toChars(), s->kind()); | |
| 1730 if (type) | |
| 1731 return this; | |
| 1732 if (!s->isFuncDeclaration()) // functions are checked after overloading | |
| 1733 checkDeprecated(sc, s); | |
| 1734 s = s->toAlias(); | |
| 1735 //printf("s = '%s', s->kind = '%s', s->needThis() = %p\n", s->toChars(), s->kind(), s->needThis()); | |
| 1736 if (!s->isFuncDeclaration()) | |
| 1737 checkDeprecated(sc, s); | |
| 1738 | |
| 1739 if (sc->func) | |
| 1740 thiscd = sc->func->parent->isClassDeclaration(); | |
| 1741 | |
| 1742 // BUG: This should happen after overload resolution for functions, not before | |
| 1743 if (s->needThis()) | |
| 1744 { | |
| 1745 if (hasThis(sc) /*&& !s->isFuncDeclaration()*/) | |
| 1746 { | |
| 1747 // Supply an implicit 'this', as in | |
| 1748 // this.ident | |
| 1749 | |
| 1750 DotVarExp *de; | |
| 1751 | |
| 1752 de = new DotVarExp(loc, new ThisExp(loc), s->isDeclaration()); | |
| 1753 return de->semantic(sc); | |
| 1754 } | |
| 1755 } | |
| 1756 | |
| 1757 em = s->isEnumMember(); | |
| 1758 if (em) | |
| 1759 { | |
| 1760 e = em->value; | |
| 1761 e = e->semantic(sc); | |
| 1762 return e; | |
| 1763 } | |
| 1764 v = s->isVarDeclaration(); | |
| 1765 if (v) | |
| 1766 { | |
| 1767 //printf("Identifier '%s' is a variable, type '%s'\n", toChars(), v->type->toChars()); | |
| 1768 if (!type) | |
| 1769 { type = v->type; | |
| 1770 if (!v->type) | |
| 1771 { error("forward reference of %s", v->toChars()); | |
| 1772 type = Type::terror; | |
| 1773 } | |
| 1774 } | |
| 1775 if (v->isConst() && type->toBasetype()->ty != Tsarray) | |
| 1776 { | |
| 1777 if (v->init) | |
| 1778 { | |
| 1779 if (v->inuse) | |
| 1780 { | |
| 1781 error("circular reference to '%s'", v->toChars()); | |
| 1782 type = Type::tint32; | |
| 1783 return this; | |
| 1784 } | |
| 1785 ExpInitializer *ei = v->init->isExpInitializer(); | |
| 1786 if (ei) | |
| 1787 { | |
| 1788 e = ei->exp->copy(); // make copy so we can change loc | |
| 1789 if (e->op == TOKstring || !e->type) | |
| 1790 e = e->semantic(sc); | |
| 1791 e = e->implicitCastTo(sc, type); | |
| 1792 e->loc = loc; | |
| 1793 return e; | |
| 1794 } | |
| 1795 } | |
| 1796 else | |
| 1797 { | |
| 1798 e = type->defaultInit(); | |
| 1799 e->loc = loc; | |
| 1800 return e; | |
| 1801 } | |
| 1802 } | |
| 1803 e = new VarExp(loc, v); | |
| 1804 e->type = type; | |
| 1805 e = e->semantic(sc); | |
| 1806 return e->deref(); | |
| 1807 } | |
| 1808 fld = s->isFuncLiteralDeclaration(); | |
| 1809 if (fld) | |
| 1810 { //printf("'%s' is a function literal\n", fld->toChars()); | |
| 1811 e = new FuncExp(loc, fld); | |
| 1812 return e->semantic(sc); | |
| 1813 } | |
| 1814 f = s->isFuncDeclaration(); | |
| 1815 if (f) | |
| 1816 { //printf("'%s' is a function\n", f->toChars()); | |
| 1817 return new VarExp(loc, f); | |
| 1818 } | |
| 1819 cd = s->isClassDeclaration(); | |
| 1820 if (cd && thiscd && cd->isBaseOf(thiscd, NULL) && sc->func->needThis()) | |
| 1821 { | |
| 1822 // We need to add an implicit 'this' if cd is this class or a base class. | |
| 1823 DotTypeExp *dte; | |
| 1824 | |
| 1825 dte = new DotTypeExp(loc, new ThisExp(loc), s); | |
| 1826 return dte->semantic(sc); | |
| 1827 } | |
| 1828 imp = s->isImport(); | |
| 1829 if (imp) | |
| 1830 { | |
| 1831 ScopeExp *ie; | |
| 1832 | |
| 1833 ie = new ScopeExp(loc, imp->pkg); | |
| 1834 return ie->semantic(sc); | |
| 1835 } | |
| 1836 pkg = s->isPackage(); | |
| 1837 if (pkg) | |
| 1838 { | |
| 1839 ScopeExp *ie; | |
| 1840 | |
| 1841 ie = new ScopeExp(loc, pkg); | |
| 1842 return ie->semantic(sc); | |
| 1843 } | |
| 1844 Module *mod = s->isModule(); | |
| 1845 if (mod) | |
| 1846 { | |
| 1847 ScopeExp *ie; | |
| 1848 | |
| 1849 ie = new ScopeExp(loc, mod); | |
| 1850 return ie->semantic(sc); | |
| 1851 } | |
| 1852 | |
| 1853 t = s->getType(); | |
| 1854 if (t) | |
| 1855 { | |
| 1856 return new TypeExp(loc, t); | |
| 1857 } | |
| 1858 | |
| 1859 TupleDeclaration *tup = s->isTupleDeclaration(); | |
| 1860 if (tup) | |
| 1861 { | |
| 1862 e = new TupleExp(loc, tup); | |
| 1863 e = e->semantic(sc); | |
| 1864 return e; | |
| 1865 } | |
| 1866 | |
| 1867 TemplateInstance *ti = s->isTemplateInstance(); | |
| 1868 if (ti && !global.errors) | |
| 1869 { if (!ti->semanticdone) | |
| 1870 ti->semantic(sc); | |
| 1871 s = ti->inst->toAlias(); | |
| 1872 if (!s->isTemplateInstance()) | |
| 1873 goto Lagain; | |
| 1874 e = new ScopeExp(loc, ti); | |
| 1875 e = e->semantic(sc); | |
| 1876 return e; | |
| 1877 } | |
| 1878 | |
| 1879 TemplateDeclaration *td = s->isTemplateDeclaration(); | |
| 1880 if (td) | |
| 1881 { | |
| 1882 e = new TemplateExp(loc, td); | |
| 1883 e = e->semantic(sc); | |
| 1884 return e; | |
| 1885 } | |
| 1886 | |
| 1887 Lerr: | |
| 1888 error("%s '%s' is not a variable", s->kind(), s->toChars()); | |
| 1889 type = Type::terror; | |
| 1890 return this; | |
| 1891 } | |
| 1892 | |
| 1893 char *DsymbolExp::toChars() | |
| 1894 { | |
| 1895 return s->toChars(); | |
| 1896 } | |
| 1897 | |
| 1898 void DsymbolExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1899 { | |
| 1900 buf->writestring(s->toChars()); | |
| 1901 } | |
| 1902 | |
| 1903 Expression *DsymbolExp::toLvalue(Scope *sc, Expression *e) | |
| 1904 { | |
| 1905 #if 0 | |
| 1906 tym = tybasic(e1->ET->Tty); | |
| 1907 if (!(tyscalar(tym) || | |
| 1908 tym == TYstruct || | |
| 1909 tym == TYarray && e->Eoper == TOKaddr)) | |
| 1910 synerr(EM_lvalue); // lvalue expected | |
| 1911 #endif | |
| 1912 return this; | |
| 1913 } | |
| 1914 | |
| 1915 /******************************** ThisExp **************************/ | |
| 1916 | |
| 1917 ThisExp::ThisExp(Loc loc) | |
| 1918 : Expression(loc, TOKthis, sizeof(ThisExp)) | |
| 1919 { | |
| 1920 var = NULL; | |
| 1921 } | |
| 1922 | |
| 1923 Expression *ThisExp::semantic(Scope *sc) | |
| 1924 { FuncDeclaration *fd; | |
| 1925 FuncDeclaration *fdthis; | |
| 1926 int nested = 0; | |
| 1927 | |
| 1928 #if LOGSEMANTIC | |
| 1929 printf("ThisExp::semantic()\n"); | |
| 1930 #endif | |
| 1931 if (type) | |
| 1932 { //assert(global.errors || var); | |
| 1933 return this; | |
| 1934 } | |
| 1935 | |
| 1936 /* Special case for typeof(this) and typeof(super) since both | |
| 1937 * should work even if they are not inside a non-static member function | |
| 1938 */ | |
| 1939 if (sc->intypeof) | |
| 1940 { | |
| 1941 // Find enclosing struct or class | |
| 1942 for (Dsymbol *s = sc->parent; 1; s = s->parent) | |
| 1943 { | |
| 1944 ClassDeclaration *cd; | |
| 1945 StructDeclaration *sd; | |
| 1946 | |
| 1947 if (!s) | |
| 1948 { | |
| 1949 error("%s is not in a struct or class scope", toChars()); | |
| 1950 goto Lerr; | |
| 1951 } | |
| 1952 cd = s->isClassDeclaration(); | |
| 1953 if (cd) | |
| 1954 { | |
| 1955 type = cd->type; | |
| 1956 return this; | |
| 1957 } | |
| 1958 sd = s->isStructDeclaration(); | |
| 1959 if (sd) | |
| 1960 { | |
| 1961 type = sd->type->pointerTo(); | |
| 1962 return this; | |
| 1963 } | |
| 1964 } | |
| 1965 } | |
| 1966 | |
| 1967 fdthis = sc->parent->isFuncDeclaration(); | |
| 1968 fd = hasThis(sc); // fd is the uplevel function with the 'this' variable | |
| 1969 if (!fd) | |
| 1970 goto Lerr; | |
| 1971 | |
| 1972 assert(fd->vthis); | |
| 1973 var = fd->vthis; | |
| 1974 assert(var->parent); | |
| 1975 type = var->type; | |
| 1976 var->isVarDeclaration()->checkNestedReference(sc, loc); | |
| 1977 #if 0 | |
| 1978 if (fd != fdthis) // if nested | |
| 1979 { | |
| 1980 fdthis->getLevel(loc, fd); | |
| 1981 fd->vthis->nestedref = 1; | |
| 1982 fd->nestedFrameRef = 1; | |
| 1983 } | |
| 1984 #endif | |
| 1985 sc->callSuper |= CSXthis; | |
| 1986 return this; | |
| 1987 | |
| 1988 Lerr: | |
| 1989 error("'this' is only allowed in non-static member functions, not %s", sc->parent->toChars()); | |
| 1990 type = Type::tint32; | |
| 1991 return this; | |
| 1992 } | |
| 1993 | |
| 1994 int ThisExp::isBool(int result) | |
| 1995 { | |
| 1996 return result ? TRUE : FALSE; | |
| 1997 } | |
| 1998 | |
| 1999 void ThisExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2000 { | |
| 2001 buf->writestring("this"); | |
| 2002 } | |
| 2003 | |
| 2004 Expression *ThisExp::toLvalue(Scope *sc, Expression *e) | |
| 2005 { | |
| 2006 return this; | |
| 2007 } | |
| 2008 | |
| 2009 /******************************** SuperExp **************************/ | |
| 2010 | |
| 2011 SuperExp::SuperExp(Loc loc) | |
| 2012 : ThisExp(loc) | |
| 2013 { | |
| 2014 op = TOKsuper; | |
| 2015 } | |
| 2016 | |
| 2017 Expression *SuperExp::semantic(Scope *sc) | |
| 2018 { FuncDeclaration *fd; | |
| 2019 FuncDeclaration *fdthis; | |
| 2020 ClassDeclaration *cd; | |
| 2021 Dsymbol *s; | |
| 2022 | |
| 2023 #if LOGSEMANTIC | |
| 2024 printf("SuperExp::semantic('%s')\n", toChars()); | |
| 2025 #endif | |
| 2026 if (type) | |
| 2027 return this; | |
| 2028 | |
| 2029 /* Special case for typeof(this) and typeof(super) since both | |
| 2030 * should work even if they are not inside a non-static member function | |
| 2031 */ | |
| 2032 if (sc->intypeof) | |
| 2033 { | |
| 2034 // Find enclosing class | |
| 2035 for (Dsymbol *s = sc->parent; 1; s = s->parent) | |
| 2036 { | |
| 2037 ClassDeclaration *cd; | |
| 2038 | |
| 2039 if (!s) | |
| 2040 { | |
| 2041 error("%s is not in a class scope", toChars()); | |
| 2042 goto Lerr; | |
| 2043 } | |
| 2044 cd = s->isClassDeclaration(); | |
| 2045 if (cd) | |
| 2046 { | |
| 2047 cd = cd->baseClass; | |
| 2048 if (!cd) | |
| 2049 { error("class %s has no 'super'", s->toChars()); | |
| 2050 goto Lerr; | |
| 2051 } | |
| 2052 type = cd->type; | |
| 2053 return this; | |
| 2054 } | |
| 2055 } | |
| 2056 } | |
| 2057 | |
| 2058 fdthis = sc->parent->isFuncDeclaration(); | |
| 2059 fd = hasThis(sc); | |
| 2060 if (!fd) | |
| 2061 goto Lerr; | |
| 2062 assert(fd->vthis); | |
| 2063 var = fd->vthis; | |
| 2064 assert(var->parent); | |
| 2065 | |
| 2066 s = fd->toParent(); | |
| 2067 while (s && s->isTemplateInstance()) | |
| 2068 s = s->toParent(); | |
| 2069 assert(s); | |
| 2070 cd = s->isClassDeclaration(); | |
| 2071 //printf("parent is %s %s\n", fd->toParent()->kind(), fd->toParent()->toChars()); | |
| 2072 if (!cd) | |
| 2073 goto Lerr; | |
| 2074 if (!cd->baseClass) | |
| 2075 { | |
| 2076 error("no base class for %s", cd->toChars()); | |
| 2077 type = fd->vthis->type; | |
| 2078 } | |
| 2079 else | |
| 2080 { | |
| 2081 type = cd->baseClass->type; | |
| 2082 } | |
| 2083 | |
| 2084 var->isVarDeclaration()->checkNestedReference(sc, loc); | |
| 2085 #if 0 | |
| 2086 if (fd != fdthis) | |
| 2087 { | |
| 2088 fdthis->getLevel(loc, fd); | |
| 2089 fd->vthis->nestedref = 1; | |
| 2090 fd->nestedFrameRef = 1; | |
| 2091 } | |
| 2092 #endif | |
| 2093 | |
| 2094 sc->callSuper |= CSXsuper; | |
| 2095 return this; | |
| 2096 | |
| 2097 | |
| 2098 Lerr: | |
| 2099 error("'super' is only allowed in non-static class member functions"); | |
| 2100 type = Type::tint32; | |
| 2101 return this; | |
| 2102 } | |
| 2103 | |
| 2104 void SuperExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2105 { | |
| 2106 buf->writestring("super"); | |
| 2107 } | |
| 2108 | |
| 2109 | |
| 2110 /******************************** NullExp **************************/ | |
| 2111 | |
| 2112 NullExp::NullExp(Loc loc) | |
| 2113 : Expression(loc, TOKnull, sizeof(NullExp)) | |
| 2114 { | |
| 2115 committed = 0; | |
| 2116 } | |
| 2117 | |
| 2118 Expression *NullExp::semantic(Scope *sc) | |
| 2119 { | |
| 2120 #if LOGSEMANTIC | |
| 2121 printf("NullExp::semantic('%s')\n", toChars()); | |
| 2122 #endif | |
| 2123 // NULL is the same as (void *)0 | |
| 2124 if (!type) | |
| 2125 type = Type::tvoid->pointerTo(); | |
| 2126 return this; | |
| 2127 } | |
| 2128 | |
| 2129 int NullExp::isBool(int result) | |
| 2130 { | |
| 2131 return result ? FALSE : TRUE; | |
| 2132 } | |
| 2133 | |
| 2134 void NullExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2135 { | |
| 2136 buf->writestring("null"); | |
| 2137 } | |
| 2138 | |
| 2139 void NullExp::toMangleBuffer(OutBuffer *buf) | |
| 2140 { | |
| 2141 buf->writeByte('n'); | |
| 2142 } | |
| 2143 | |
| 2144 /******************************** StringExp **************************/ | |
| 2145 | |
| 2146 StringExp::StringExp(Loc loc, char *string) | |
| 2147 : Expression(loc, TOKstring, sizeof(StringExp)) | |
| 2148 { | |
| 2149 this->string = string; | |
| 2150 this->len = strlen(string); | |
| 2151 this->sz = 1; | |
| 2152 this->committed = 0; | |
| 2153 this->postfix = 0; | |
| 2154 } | |
| 2155 | |
| 2156 StringExp::StringExp(Loc loc, void *string, size_t len) | |
| 2157 : Expression(loc, TOKstring, sizeof(StringExp)) | |
| 2158 { | |
| 2159 this->string = string; | |
| 2160 this->len = len; | |
| 2161 this->sz = 1; | |
| 2162 this->committed = 0; | |
| 2163 this->postfix = 0; | |
| 2164 } | |
| 2165 | |
| 2166 StringExp::StringExp(Loc loc, void *string, size_t len, unsigned char postfix) | |
| 2167 : Expression(loc, TOKstring, sizeof(StringExp)) | |
| 2168 { | |
| 2169 this->string = string; | |
| 2170 this->len = len; | |
| 2171 this->sz = 1; | |
| 2172 this->committed = 0; | |
| 2173 this->postfix = postfix; | |
| 2174 } | |
| 2175 | |
| 2176 #if 0 | |
| 2177 Expression *StringExp::syntaxCopy() | |
| 2178 { | |
| 2179 printf("StringExp::syntaxCopy() %s\n", toChars()); | |
| 2180 return copy(); | |
| 2181 } | |
| 2182 #endif | |
| 2183 | |
| 2184 int StringExp::equals(Object *o) | |
| 2185 { | |
| 2186 //printf("StringExp::equals('%s')\n", o->toChars()); | |
| 2187 if (o && o->dyncast() == DYNCAST_EXPRESSION) | |
| 2188 { Expression *e = (Expression *)o; | |
| 2189 | |
| 2190 if (e->op == TOKstring) | |
| 2191 { | |
| 2192 return compare(o) == 0; | |
| 2193 } | |
| 2194 } | |
| 2195 return FALSE; | |
| 2196 } | |
| 2197 | |
| 2198 char *StringExp::toChars() | |
| 2199 { | |
| 2200 OutBuffer buf; | |
| 2201 HdrGenState hgs; | |
| 2202 char *p; | |
| 2203 | |
| 2204 memset(&hgs, 0, sizeof(hgs)); | |
| 2205 toCBuffer(&buf, &hgs); | |
| 2206 buf.writeByte(0); | |
| 2207 p = (char *)buf.data; | |
| 2208 buf.data = NULL; | |
| 2209 return p; | |
| 2210 } | |
| 2211 | |
| 2212 Expression *StringExp::semantic(Scope *sc) | |
| 2213 { | |
| 2214 #if LOGSEMANTIC | |
| 2215 printf("StringExp::semantic() %s\n", toChars()); | |
| 2216 #endif | |
| 2217 if (!type) | |
| 2218 { OutBuffer buffer; | |
| 2219 size_t newlen = 0; | |
| 2220 char *p; | |
| 2221 size_t u; | |
| 2222 unsigned c; | |
| 2223 | |
| 2224 switch (postfix) | |
| 2225 { | |
| 2226 case 'd': | |
| 2227 for (u = 0; u < len;) | |
| 2228 { | |
| 2229 p = utf_decodeChar((unsigned char *)string, len, &u, &c); | |
| 2230 if (p) | |
| 2231 { error("%s", p); | |
| 2232 break; | |
| 2233 } | |
| 2234 else | |
| 2235 { buffer.write4(c); | |
| 2236 newlen++; | |
| 2237 } | |
| 2238 } | |
| 2239 buffer.write4(0); | |
| 2240 string = buffer.extractData(); | |
| 2241 len = newlen; | |
| 2242 sz = 4; | |
| 2243 type = new TypeSArray(Type::tdchar, new IntegerExp(loc, len, Type::tindex)); | |
| 2244 committed = 1; | |
| 2245 break; | |
| 2246 | |
| 2247 case 'w': | |
| 2248 for (u = 0; u < len;) | |
| 2249 { | |
| 2250 p = utf_decodeChar((unsigned char *)string, len, &u, &c); | |
| 2251 if (p) | |
| 2252 { error("%s", p); | |
| 2253 break; | |
| 2254 } | |
| 2255 else | |
| 2256 { buffer.writeUTF16(c); | |
| 2257 newlen++; | |
| 2258 if (c >= 0x10000) | |
| 2259 newlen++; | |
| 2260 } | |
| 2261 } | |
| 2262 buffer.writeUTF16(0); | |
| 2263 string = buffer.extractData(); | |
| 2264 len = newlen; | |
| 2265 sz = 2; | |
| 2266 type = new TypeSArray(Type::twchar, new IntegerExp(loc, len, Type::tindex)); | |
| 2267 committed = 1; | |
| 2268 break; | |
| 2269 | |
| 2270 case 'c': | |
| 2271 committed = 1; | |
| 2272 default: | |
| 2273 type = new TypeSArray(Type::tchar, new IntegerExp(loc, len, Type::tindex)); | |
| 2274 break; | |
| 2275 } | |
| 2276 type = type->semantic(loc, sc); | |
| 2277 } | |
| 2278 return this; | |
| 2279 } | |
| 2280 | |
| 2281 /**************************************** | |
| 2282 * Convert string to char[]. | |
| 2283 */ | |
| 2284 | |
| 2285 StringExp *StringExp::toUTF8(Scope *sc) | |
| 2286 { | |
| 2287 if (sz != 1) | |
| 2288 { // Convert to UTF-8 string | |
| 2289 committed = 0; | |
| 2290 Expression *e = castTo(sc, Type::tchar->arrayOf()); | |
| 2291 e = e->optimize(WANTvalue); | |
| 2292 assert(e->op == TOKstring); | |
| 2293 StringExp *se = (StringExp *)e; | |
| 2294 assert(se->sz == 1); | |
| 2295 return se; | |
| 2296 } | |
| 2297 return this; | |
| 2298 } | |
| 2299 | |
| 2300 int StringExp::compare(Object *obj) | |
| 2301 { | |
| 2302 // Used to sort case statement expressions so we can do an efficient lookup | |
| 2303 StringExp *se2 = (StringExp *)(obj); | |
| 2304 | |
| 2305 // This is a kludge so isExpression() in template.c will return 5 | |
| 2306 // for StringExp's. | |
| 2307 if (!se2) | |
| 2308 return 5; | |
| 2309 | |
| 2310 assert(se2->op == TOKstring); | |
| 2311 | |
| 2312 int len1 = len; | |
| 2313 int len2 = se2->len; | |
| 2314 | |
| 2315 if (len1 == len2) | |
| 2316 { | |
| 2317 switch (sz) | |
| 2318 { | |
| 2319 case 1: | |
| 2320 return strcmp((char *)string, (char *)se2->string); | |
| 2321 | |
| 2322 case 2: | |
| 2323 { unsigned u; | |
| 2324 d_wchar *s1 = (d_wchar *)string; | |
| 2325 d_wchar *s2 = (d_wchar *)se2->string; | |
| 2326 | |
| 2327 for (u = 0; u < len; u++) | |
| 2328 { | |
| 2329 if (s1[u] != s2[u]) | |
| 2330 return s1[u] - s2[u]; | |
| 2331 } | |
| 2332 } | |
| 2333 | |
| 2334 case 4: | |
| 2335 { unsigned u; | |
| 2336 d_dchar *s1 = (d_dchar *)string; | |
| 2337 d_dchar *s2 = (d_dchar *)se2->string; | |
| 2338 | |
| 2339 for (u = 0; u < len; u++) | |
| 2340 { | |
| 2341 if (s1[u] != s2[u]) | |
| 2342 return s1[u] - s2[u]; | |
| 2343 } | |
| 2344 } | |
| 2345 break; | |
| 2346 | |
| 2347 default: | |
| 2348 assert(0); | |
| 2349 } | |
| 2350 } | |
| 2351 return len1 - len2; | |
| 2352 } | |
| 2353 | |
| 2354 int StringExp::isBool(int result) | |
| 2355 { | |
| 2356 return result ? TRUE : FALSE; | |
| 2357 } | |
| 2358 | |
|
35
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2359 unsigned StringExp::charAt(size_t i) |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2360 { unsigned value; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2361 |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2362 switch (sz) |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2363 { |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2364 case 1: |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2365 value = ((unsigned char *)string)[i]; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2366 break; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2367 |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2368 case 2: |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2369 value = ((unsigned short *)string)[i]; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2370 break; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2371 |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2372 case 4: |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2373 value = ((unsigned int *)string)[i]; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2374 break; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2375 |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2376 default: |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2377 assert(0); |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2378 break; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2379 } |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2380 return value; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2381 } |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2382 |
| 1 | 2383 void StringExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 2384 { | |
| 2385 buf->writeByte('"'); | |
| 2386 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
|
2387 { unsigned c = charAt(i); |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2388 |
| 1 | 2389 switch (c) |
| 2390 { | |
| 2391 case '"': | |
| 2392 case '\\': | |
| 2393 if (!hgs->console) | |
| 2394 buf->writeByte('\\'); | |
| 2395 default: | |
| 2396 if (c <= 0xFF) | |
| 2397 { if (c <= 0x7F && (isprint(c) || hgs->console)) | |
| 2398 buf->writeByte(c); | |
| 2399 else | |
| 2400 buf->printf("\\x%02x", c); | |
| 2401 } | |
| 2402 else if (c <= 0xFFFF) | |
| 2403 buf->printf("\\x%02x\\x%02x", c & 0xFF, c >> 8); | |
| 2404 else | |
| 2405 buf->printf("\\x%02x\\x%02x\\x%02x\\x%02x", | |
| 2406 c & 0xFF, (c >> 8) & 0xFF, (c >> 16) & 0xFF, c >> 24); | |
| 2407 break; | |
| 2408 } | |
| 2409 } | |
| 2410 buf->writeByte('"'); | |
| 2411 if (postfix) | |
| 2412 buf->writeByte(postfix); | |
| 2413 } | |
| 2414 | |
| 2415 void StringExp::toMangleBuffer(OutBuffer *buf) | |
| 2416 { char m; | |
| 2417 OutBuffer tmp; | |
| 2418 char *p; | |
| 2419 unsigned c; | |
| 2420 size_t u; | |
| 2421 unsigned char *q; | |
| 2422 unsigned qlen; | |
| 2423 | |
| 2424 /* Write string in UTF-8 format | |
| 2425 */ | |
| 2426 switch (sz) | |
| 2427 { case 1: | |
| 2428 m = 'a'; | |
| 2429 q = (unsigned char *)string; | |
| 2430 qlen = len; | |
| 2431 break; | |
| 2432 case 2: | |
| 2433 m = 'w'; | |
| 2434 for (u = 0; u < len; ) | |
| 2435 { | |
| 2436 p = utf_decodeWchar((unsigned short *)string, len, &u, &c); | |
| 2437 if (p) | |
| 2438 error("%s", p); | |
| 2439 else | |
| 2440 tmp.writeUTF8(c); | |
| 2441 } | |
| 2442 q = tmp.data; | |
| 2443 qlen = tmp.offset; | |
| 2444 break; | |
| 2445 case 4: | |
| 2446 m = 'd'; | |
| 2447 for (u = 0; u < len; u++) | |
| 2448 { | |
| 2449 c = ((unsigned *)string)[u]; | |
| 2450 if (!utf_isValidDchar(c)) | |
| 2451 error("invalid UCS-32 char \\U%08x", c); | |
| 2452 else | |
| 2453 tmp.writeUTF8(c); | |
| 2454 } | |
| 2455 q = tmp.data; | |
| 2456 qlen = tmp.offset; | |
| 2457 break; | |
| 2458 default: | |
| 2459 assert(0); | |
| 2460 } | |
| 2461 buf->writeByte(m); | |
| 2462 buf->printf("%d_", qlen); | |
| 2463 for (size_t i = 0; i < qlen; i++) | |
| 2464 buf->printf("%02x", q[i]); | |
| 2465 } | |
| 2466 | |
| 2467 /************************ ArrayLiteralExp ************************************/ | |
| 2468 | |
| 2469 // [ e1, e2, e3, ... ] | |
| 2470 | |
| 2471 ArrayLiteralExp::ArrayLiteralExp(Loc loc, Expressions *elements) | |
| 2472 : Expression(loc, TOKarrayliteral, sizeof(ArrayLiteralExp)) | |
| 2473 { | |
| 2474 this->elements = elements; | |
| 2475 } | |
| 2476 | |
| 2477 ArrayLiteralExp::ArrayLiteralExp(Loc loc, Expression *e) | |
| 2478 : Expression(loc, TOKarrayliteral, sizeof(ArrayLiteralExp)) | |
| 2479 { | |
| 2480 elements = new Expressions; | |
| 2481 elements->push(e); | |
| 2482 } | |
| 2483 | |
| 2484 Expression *ArrayLiteralExp::syntaxCopy() | |
| 2485 { | |
| 2486 return new ArrayLiteralExp(loc, arraySyntaxCopy(elements)); | |
| 2487 } | |
| 2488 | |
| 2489 Expression *ArrayLiteralExp::semantic(Scope *sc) | |
| 2490 { Expression *e; | |
| 2491 Type *t0 = NULL; | |
| 2492 | |
| 2493 #if LOGSEMANTIC | |
| 2494 printf("ArrayLiteralExp::semantic('%s')\n", toChars()); | |
| 2495 #endif | |
| 2496 | |
| 2497 // Run semantic() on each element | |
| 2498 for (int i = 0; i < elements->dim; i++) | |
| 2499 { e = (Expression *)elements->data[i]; | |
| 2500 e = e->semantic(sc); | |
| 2501 elements->data[i] = (void *)e; | |
| 2502 } | |
| 2503 expandTuples(elements); | |
| 2504 for (int i = 0; i < elements->dim; i++) | |
| 2505 { e = (Expression *)elements->data[i]; | |
| 2506 | |
| 2507 if (!e->type) | |
| 2508 error("%s has no value", e->toChars()); | |
| 2509 e = resolveProperties(sc, e); | |
| 2510 | |
| 2511 unsigned char committed = 1; | |
| 2512 if (e->op == TOKstring) | |
| 2513 committed = ((StringExp *)e)->committed; | |
| 2514 | |
| 2515 if (!t0) | |
| 2516 { t0 = e->type; | |
| 2517 // Convert any static arrays to dynamic arrays | |
| 2518 if (t0->ty == Tsarray) | |
| 2519 { | |
| 2520 t0 = t0->next->arrayOf(); | |
| 2521 e = e->implicitCastTo(sc, t0); | |
| 2522 } | |
| 2523 } | |
| 2524 else | |
| 2525 e = e->implicitCastTo(sc, t0); | |
| 2526 if (!committed && e->op == TOKstring) | |
| 2527 { StringExp *se = (StringExp *)e; | |
| 2528 se->committed = 0; | |
| 2529 } | |
| 2530 elements->data[i] = (void *)e; | |
| 2531 } | |
| 2532 | |
| 2533 if (!t0) | |
| 2534 t0 = Type::tvoid; | |
| 2535 type = new TypeSArray(t0, new IntegerExp(elements->dim)); | |
| 2536 type = type->semantic(loc, sc); | |
| 2537 return this; | |
| 2538 } | |
| 2539 | |
| 2540 int ArrayLiteralExp::checkSideEffect(int flag) | |
| 2541 { int f = 0; | |
| 2542 | |
| 2543 for (size_t i = 0; i < elements->dim; i++) | |
| 2544 { Expression *e = (Expression *)elements->data[i]; | |
| 2545 | |
| 2546 f |= e->checkSideEffect(2); | |
| 2547 } | |
| 2548 if (flag == 0 && f == 0) | |
| 2549 Expression::checkSideEffect(0); | |
| 2550 return f; | |
| 2551 } | |
| 2552 | |
| 2553 int ArrayLiteralExp::isBool(int result) | |
| 2554 { | |
| 2555 size_t dim = elements ? elements->dim : 0; | |
| 2556 return result ? (dim != 0) : (dim == 0); | |
| 2557 } | |
| 2558 | |
| 2559 void ArrayLiteralExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2560 { | |
| 2561 buf->writeByte('['); | |
| 2562 argsToCBuffer(buf, elements, hgs); | |
| 2563 buf->writeByte(']'); | |
| 2564 } | |
| 2565 | |
| 2566 void ArrayLiteralExp::toMangleBuffer(OutBuffer *buf) | |
| 2567 { | |
| 2568 size_t dim = elements ? elements->dim : 0; | |
| 2569 buf->printf("A%u", dim); | |
| 2570 for (size_t i = 0; i < dim; i++) | |
| 2571 { Expression *e = (Expression *)elements->data[i]; | |
| 2572 e->toMangleBuffer(buf); | |
| 2573 } | |
| 2574 } | |
| 2575 | |
| 2576 /************************ AssocArrayLiteralExp ************************************/ | |
| 2577 | |
| 2578 // [ key0 : value0, key1 : value1, ... ] | |
| 2579 | |
| 2580 AssocArrayLiteralExp::AssocArrayLiteralExp(Loc loc, | |
| 2581 Expressions *keys, Expressions *values) | |
| 2582 : Expression(loc, TOKassocarrayliteral, sizeof(AssocArrayLiteralExp)) | |
| 2583 { | |
| 2584 assert(keys->dim == values->dim); | |
| 2585 this->keys = keys; | |
| 2586 this->values = values; | |
| 2587 } | |
| 2588 | |
| 2589 Expression *AssocArrayLiteralExp::syntaxCopy() | |
| 2590 { | |
| 2591 return new AssocArrayLiteralExp(loc, | |
| 2592 arraySyntaxCopy(keys), arraySyntaxCopy(values)); | |
| 2593 } | |
| 2594 | |
| 2595 Expression *AssocArrayLiteralExp::semantic(Scope *sc) | |
| 2596 { Expression *e; | |
| 2597 Type *tkey = NULL; | |
| 2598 Type *tvalue = NULL; | |
| 2599 | |
| 2600 #if LOGSEMANTIC | |
| 2601 printf("AssocArrayLiteralExp::semantic('%s')\n", toChars()); | |
| 2602 #endif | |
| 2603 | |
| 2604 // Run semantic() on each element | |
| 2605 for (size_t i = 0; i < keys->dim; i++) | |
| 2606 { Expression *key = (Expression *)keys->data[i]; | |
| 2607 Expression *value = (Expression *)values->data[i]; | |
| 2608 | |
| 2609 key = key->semantic(sc); | |
| 2610 value = value->semantic(sc); | |
| 2611 | |
| 2612 keys->data[i] = (void *)key; | |
| 2613 values->data[i] = (void *)value; | |
| 2614 } | |
| 2615 expandTuples(keys); | |
| 2616 expandTuples(values); | |
| 2617 if (keys->dim != values->dim) | |
| 2618 { | |
| 2619 error("number of keys is %u, must match number of values %u", keys->dim, values->dim); | |
| 2620 keys->setDim(0); | |
| 2621 values->setDim(0); | |
| 2622 } | |
| 2623 for (size_t i = 0; i < keys->dim; i++) | |
| 2624 { Expression *key = (Expression *)keys->data[i]; | |
| 2625 Expression *value = (Expression *)values->data[i]; | |
| 2626 | |
| 2627 if (!key->type) | |
| 2628 error("%s has no value", key->toChars()); | |
| 2629 if (!value->type) | |
| 2630 error("%s has no value", value->toChars()); | |
| 2631 key = resolveProperties(sc, key); | |
| 2632 value = resolveProperties(sc, value); | |
| 2633 | |
| 2634 if (!tkey) | |
| 2635 tkey = key->type; | |
| 2636 else | |
| 2637 key = key->implicitCastTo(sc, tkey); | |
| 2638 keys->data[i] = (void *)key; | |
| 2639 | |
| 2640 if (!tvalue) | |
| 2641 tvalue = value->type; | |
| 2642 else | |
| 2643 value = value->implicitCastTo(sc, tvalue); | |
| 2644 values->data[i] = (void *)value; | |
| 2645 } | |
| 2646 | |
| 2647 if (!tkey) | |
| 2648 tkey = Type::tvoid; | |
| 2649 if (!tvalue) | |
| 2650 tvalue = Type::tvoid; | |
| 2651 type = new TypeAArray(tvalue, tkey); | |
| 2652 type = type->semantic(loc, sc); | |
| 2653 return this; | |
| 2654 } | |
| 2655 | |
| 2656 int AssocArrayLiteralExp::checkSideEffect(int flag) | |
| 2657 { int f = 0; | |
| 2658 | |
| 2659 for (size_t i = 0; i < keys->dim; i++) | |
| 2660 { Expression *key = (Expression *)keys->data[i]; | |
| 2661 Expression *value = (Expression *)values->data[i]; | |
| 2662 | |
| 2663 f |= key->checkSideEffect(2); | |
| 2664 f |= value->checkSideEffect(2); | |
| 2665 } | |
| 2666 if (flag == 0 && f == 0) | |
| 2667 Expression::checkSideEffect(0); | |
| 2668 return f; | |
| 2669 } | |
| 2670 | |
| 2671 int AssocArrayLiteralExp::isBool(int result) | |
| 2672 { | |
| 2673 size_t dim = keys->dim; | |
| 2674 return result ? (dim != 0) : (dim == 0); | |
| 2675 } | |
| 2676 | |
| 2677 void AssocArrayLiteralExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2678 { | |
| 2679 buf->writeByte('['); | |
| 2680 for (size_t i = 0; i < keys->dim; i++) | |
| 2681 { Expression *key = (Expression *)keys->data[i]; | |
| 2682 Expression *value = (Expression *)values->data[i]; | |
| 2683 | |
| 2684 if (i) | |
| 2685 buf->writeByte(','); | |
| 2686 expToCBuffer(buf, hgs, key, PREC_assign); | |
| 2687 buf->writeByte(':'); | |
| 2688 expToCBuffer(buf, hgs, value, PREC_assign); | |
| 2689 } | |
| 2690 buf->writeByte(']'); | |
| 2691 } | |
| 2692 | |
| 2693 void AssocArrayLiteralExp::toMangleBuffer(OutBuffer *buf) | |
| 2694 { | |
| 2695 size_t dim = keys->dim; | |
| 2696 buf->printf("A%u", dim); | |
| 2697 for (size_t i = 0; i < dim; i++) | |
| 2698 { Expression *key = (Expression *)keys->data[i]; | |
| 2699 Expression *value = (Expression *)values->data[i]; | |
| 2700 | |
| 2701 key->toMangleBuffer(buf); | |
| 2702 value->toMangleBuffer(buf); | |
| 2703 } | |
| 2704 } | |
| 2705 | |
| 2706 /************************ StructLiteralExp ************************************/ | |
| 2707 | |
| 2708 // sd( e1, e2, e3, ... ) | |
| 2709 | |
| 2710 StructLiteralExp::StructLiteralExp(Loc loc, StructDeclaration *sd, Expressions *elements) | |
| 2711 : Expression(loc, TOKstructliteral, sizeof(StructLiteralExp)) | |
| 2712 { | |
| 2713 this->sd = sd; | |
| 2714 this->elements = elements; | |
| 2715 this->sym = NULL; | |
| 2716 this->soffset = 0; | |
| 2717 this->fillHoles = 1; | |
| 2718 } | |
| 2719 | |
| 2720 Expression *StructLiteralExp::syntaxCopy() | |
| 2721 { | |
| 2722 return new StructLiteralExp(loc, sd, arraySyntaxCopy(elements)); | |
| 2723 } | |
| 2724 | |
| 2725 Expression *StructLiteralExp::semantic(Scope *sc) | |
| 2726 { Expression *e; | |
| 2727 | |
| 2728 #if LOGSEMANTIC | |
| 2729 printf("StructLiteralExp::semantic('%s')\n", toChars()); | |
| 2730 #endif | |
| 2731 | |
| 2732 // Run semantic() on each element | |
| 2733 for (size_t i = 0; i < elements->dim; i++) | |
| 2734 { e = (Expression *)elements->data[i]; | |
| 2735 if (!e) | |
| 2736 continue; | |
| 2737 e = e->semantic(sc); | |
| 2738 elements->data[i] = (void *)e; | |
| 2739 } | |
| 2740 expandTuples(elements); | |
| 2741 size_t offset = 0; | |
| 2742 for (size_t i = 0; i < elements->dim; i++) | |
| 2743 { e = (Expression *)elements->data[i]; | |
| 2744 if (!e) | |
| 2745 continue; | |
| 2746 | |
| 2747 if (!e->type) | |
| 2748 error("%s has no value", e->toChars()); | |
| 2749 e = resolveProperties(sc, e); | |
| 2750 if (i >= sd->fields.dim) | |
| 2751 { error("more initializers than fields of %s", sd->toChars()); | |
| 2752 break; | |
| 2753 } | |
| 2754 Dsymbol *s = (Dsymbol *)sd->fields.data[i]; | |
| 2755 VarDeclaration *v = s->isVarDeclaration(); | |
| 2756 assert(v); | |
| 2757 if (v->offset < offset) | |
| 2758 error("overlapping initialization for %s", v->toChars()); | |
| 2759 offset = v->offset + v->type->size(); | |
| 2760 | |
| 2761 Type *telem = v->type; | |
| 2762 while (!e->implicitConvTo(telem) && telem->toBasetype()->ty == Tsarray) | |
| 2763 { /* Static array initialization, as in: | |
| 2764 * T[3][5] = e; | |
| 2765 */ | |
| 2766 telem = telem->toBasetype()->nextOf(); | |
| 2767 } | |
| 2768 | |
| 2769 e = e->implicitCastTo(sc, telem); | |
| 2770 | |
| 2771 elements->data[i] = (void *)e; | |
| 2772 } | |
| 2773 | |
| 2774 /* Fill out remainder of elements[] with default initializers for fields[] | |
| 2775 */ | |
| 2776 for (size_t i = elements->dim; i < sd->fields.dim; i++) | |
| 2777 { Dsymbol *s = (Dsymbol *)sd->fields.data[i]; | |
| 2778 VarDeclaration *v = s->isVarDeclaration(); | |
| 2779 assert(v); | |
| 2780 | |
| 2781 if (v->offset < offset) | |
| 2782 { e = NULL; | |
| 2783 sd->hasUnions = 1; | |
| 2784 } | |
| 2785 else | |
| 2786 { | |
| 2787 if (v->init) | |
| 2788 { e = v->init->toExpression(); | |
| 2789 if (!e) | |
| 2790 error("cannot make expression out of initializer for %s", v->toChars()); | |
| 2791 } | |
| 2792 else | |
| 2793 { e = v->type->defaultInit(); | |
| 2794 e->loc = loc; | |
| 2795 } | |
| 2796 offset = v->offset + v->type->size(); | |
| 2797 } | |
| 2798 elements->push(e); | |
| 2799 } | |
| 2800 | |
| 2801 type = sd->type; | |
| 2802 return this; | |
| 2803 } | |
| 2804 | |
| 2805 /************************************** | |
| 2806 * Gets expression at offset of type. | |
| 2807 * Returns NULL if not found. | |
| 2808 */ | |
| 2809 | |
| 2810 Expression *StructLiteralExp::getField(Type *type, unsigned offset) | |
| 2811 { Expression *e = NULL; | |
| 2812 int i = getFieldIndex(type, offset); | |
| 2813 | |
| 2814 if (i != -1) | |
| 2815 { e = (Expression *)elements->data[i]; | |
| 2816 if (e) | |
| 2817 { | |
| 2818 e = e->copy(); | |
| 2819 e->type = type; | |
| 2820 } | |
| 2821 } | |
| 2822 return e; | |
| 2823 } | |
| 2824 | |
| 2825 /************************************ | |
| 2826 * Get index of field. | |
| 2827 * Returns -1 if not found. | |
| 2828 */ | |
| 2829 | |
| 2830 int StructLiteralExp::getFieldIndex(Type *type, unsigned offset) | |
| 2831 { | |
| 2832 /* Find which field offset is by looking at the field offsets | |
| 2833 */ | |
| 2834 for (size_t i = 0; i < sd->fields.dim; i++) | |
| 2835 { | |
| 2836 Dsymbol *s = (Dsymbol *)sd->fields.data[i]; | |
| 2837 VarDeclaration *v = s->isVarDeclaration(); | |
| 2838 assert(v); | |
| 2839 | |
| 2840 if (offset == v->offset && | |
| 2841 type->size() == v->type->size()) | |
| 2842 { Expression *e = (Expression *)elements->data[i]; | |
| 2843 if (e) | |
| 2844 { | |
| 2845 return i; | |
| 2846 } | |
| 2847 break; | |
| 2848 } | |
| 2849 } | |
| 2850 return -1; | |
| 2851 } | |
| 2852 | |
| 2853 | |
| 2854 Expression *StructLiteralExp::toLvalue(Scope *sc, Expression *e) | |
| 2855 { | |
| 2856 return this; | |
| 2857 } | |
| 2858 | |
| 2859 | |
| 2860 int StructLiteralExp::checkSideEffect(int flag) | |
| 2861 { int f = 0; | |
| 2862 | |
| 2863 for (size_t i = 0; i < elements->dim; i++) | |
| 2864 { Expression *e = (Expression *)elements->data[i]; | |
| 2865 if (!e) | |
| 2866 continue; | |
| 2867 | |
| 2868 f |= e->checkSideEffect(2); | |
| 2869 } | |
| 2870 if (flag == 0 && f == 0) | |
| 2871 Expression::checkSideEffect(0); | |
| 2872 return f; | |
| 2873 } | |
| 2874 | |
| 2875 void StructLiteralExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2876 { | |
| 2877 buf->writestring(sd->toChars()); | |
| 2878 buf->writeByte('('); | |
| 2879 argsToCBuffer(buf, elements, hgs); | |
| 2880 buf->writeByte(')'); | |
| 2881 } | |
| 2882 | |
| 2883 void StructLiteralExp::toMangleBuffer(OutBuffer *buf) | |
| 2884 { | |
| 2885 size_t dim = elements ? elements->dim : 0; | |
| 2886 buf->printf("S%u", dim); | |
| 2887 for (size_t i = 0; i < dim; i++) | |
| 2888 { Expression *e = (Expression *)elements->data[i]; | |
| 2889 if (e) | |
| 2890 e->toMangleBuffer(buf); | |
| 2891 else | |
| 2892 buf->writeByte('v'); // 'v' for void | |
| 2893 } | |
| 2894 } | |
| 2895 | |
| 2896 /************************ TypeDotIdExp ************************************/ | |
| 2897 | |
| 2898 /* Things like: | |
| 2899 * int.size | |
| 2900 * foo.size | |
| 2901 * (foo).size | |
| 2902 * cast(foo).size | |
| 2903 */ | |
| 2904 | |
| 2905 TypeDotIdExp::TypeDotIdExp(Loc loc, Type *type, Identifier *ident) | |
| 2906 : Expression(loc, TOKtypedot, sizeof(TypeDotIdExp)) | |
| 2907 { | |
| 2908 this->type = type; | |
| 2909 this->ident = ident; | |
| 2910 } | |
| 2911 | |
| 2912 Expression *TypeDotIdExp::syntaxCopy() | |
| 2913 { | |
| 2914 TypeDotIdExp *te = new TypeDotIdExp(loc, type->syntaxCopy(), ident); | |
| 2915 return te; | |
| 2916 } | |
| 2917 | |
| 2918 Expression *TypeDotIdExp::semantic(Scope *sc) | |
| 2919 { Expression *e; | |
| 2920 | |
| 2921 #if LOGSEMANTIC | |
| 2922 printf("TypeDotIdExp::semantic()\n"); | |
| 2923 #endif | |
| 2924 e = new DotIdExp(loc, new TypeExp(loc, type), ident); | |
| 2925 e = e->semantic(sc); | |
| 2926 return e; | |
| 2927 } | |
| 2928 | |
| 2929 void TypeDotIdExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2930 { | |
| 2931 buf->writeByte('('); | |
| 2932 type->toCBuffer(buf, NULL, hgs); | |
| 2933 buf->writeByte(')'); | |
| 2934 buf->writeByte('.'); | |
| 2935 buf->writestring(ident->toChars()); | |
| 2936 } | |
| 2937 | |
| 2938 /************************************************************/ | |
| 2939 | |
| 2940 // Mainly just a placeholder | |
| 2941 | |
| 2942 TypeExp::TypeExp(Loc loc, Type *type) | |
| 2943 : Expression(loc, TOKtype, sizeof(TypeExp)) | |
| 2944 { | |
| 2945 //printf("TypeExp::TypeExp(%s)\n", type->toChars()); | |
| 2946 this->type = type; | |
| 2947 } | |
| 2948 | |
| 2949 Expression *TypeExp::semantic(Scope *sc) | |
| 2950 { | |
| 2951 //printf("TypeExp::semantic(%s)\n", type->toChars()); | |
| 2952 type = type->semantic(loc, sc); | |
| 2953 return this; | |
| 2954 } | |
| 2955 | |
| 2956 void TypeExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2957 { | |
| 2958 type->toCBuffer(buf, NULL, hgs); | |
| 2959 } | |
| 2960 | |
| 2961 /************************************************************/ | |
| 2962 | |
| 2963 // Mainly just a placeholder | |
| 2964 | |
| 2965 ScopeExp::ScopeExp(Loc loc, ScopeDsymbol *pkg) | |
| 2966 : Expression(loc, TOKimport, sizeof(ScopeExp)) | |
| 2967 { | |
| 2968 //printf("ScopeExp::ScopeExp(pkg = '%s')\n", pkg->toChars()); | |
| 2969 //static int count; if (++count == 38) *(char*)0=0; | |
| 2970 this->sds = pkg; | |
| 2971 } | |
| 2972 | |
| 2973 Expression *ScopeExp::syntaxCopy() | |
| 2974 { | |
| 2975 ScopeExp *se = new ScopeExp(loc, (ScopeDsymbol *)sds->syntaxCopy(NULL)); | |
| 2976 return se; | |
| 2977 } | |
| 2978 | |
| 2979 Expression *ScopeExp::semantic(Scope *sc) | |
| 2980 { | |
| 2981 TemplateInstance *ti; | |
| 2982 ScopeDsymbol *sds2; | |
| 2983 | |
| 2984 #if LOGSEMANTIC | |
| 2985 printf("+ScopeExp::semantic('%s')\n", toChars()); | |
| 2986 #endif | |
| 2987 Lagain: | |
| 2988 ti = sds->isTemplateInstance(); | |
| 2989 if (ti && !global.errors) | |
| 2990 { Dsymbol *s; | |
| 2991 if (!ti->semanticdone) | |
| 2992 ti->semantic(sc); | |
| 2993 s = ti->inst->toAlias(); | |
| 2994 sds2 = s->isScopeDsymbol(); | |
| 2995 if (!sds2) | |
| 2996 { Expression *e; | |
| 2997 | |
| 2998 //printf("s = %s, '%s'\n", s->kind(), s->toChars()); | |
| 2999 if (ti->withsym) | |
| 3000 { | |
| 3001 // Same as wthis.s | |
| 3002 e = new VarExp(loc, ti->withsym->withstate->wthis); | |
| 3003 e = new DotVarExp(loc, e, s->isDeclaration()); | |
| 3004 } | |
| 3005 else | |
| 3006 e = new DsymbolExp(loc, s); | |
| 3007 e = e->semantic(sc); | |
| 3008 //printf("-1ScopeExp::semantic()\n"); | |
| 3009 return e; | |
| 3010 } | |
| 3011 if (sds2 != sds) | |
| 3012 { | |
| 3013 sds = sds2; | |
| 3014 goto Lagain; | |
| 3015 } | |
| 3016 //printf("sds = %s, '%s'\n", sds->kind(), sds->toChars()); | |
| 3017 } | |
| 3018 else | |
| 3019 { | |
| 3020 //printf("sds = %s, '%s'\n", sds->kind(), sds->toChars()); | |
| 3021 //printf("\tparent = '%s'\n", sds->parent->toChars()); | |
| 3022 sds->semantic(sc); | |
| 3023 } | |
| 3024 type = Type::tvoid; | |
| 3025 //printf("-2ScopeExp::semantic() %s\n", toChars()); | |
| 3026 return this; | |
| 3027 } | |
| 3028 | |
| 3029 void ScopeExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3030 { | |
| 3031 if (sds->isTemplateInstance()) | |
| 3032 { | |
| 3033 sds->toCBuffer(buf, hgs); | |
| 3034 } | |
| 3035 else | |
| 3036 { | |
| 3037 buf->writestring(sds->kind()); | |
| 3038 buf->writestring(" "); | |
| 3039 buf->writestring(sds->toChars()); | |
| 3040 } | |
| 3041 } | |
| 3042 | |
| 3043 /********************** TemplateExp **************************************/ | |
| 3044 | |
| 3045 // Mainly just a placeholder | |
| 3046 | |
| 3047 TemplateExp::TemplateExp(Loc loc, TemplateDeclaration *td) | |
| 3048 : Expression(loc, TOKtemplate, sizeof(TemplateExp)) | |
| 3049 { | |
| 3050 //printf("TemplateExp(): %s\n", td->toChars()); | |
| 3051 this->td = td; | |
| 3052 } | |
| 3053 | |
| 3054 void TemplateExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3055 { | |
| 3056 buf->writestring(td->toChars()); | |
| 3057 } | |
| 3058 | |
| 3059 void TemplateExp::rvalue() | |
| 3060 { | |
| 3061 error("template %s has no value", toChars()); | |
| 3062 } | |
| 3063 | |
| 3064 /********************** NewExp **************************************/ | |
| 3065 | |
| 3066 NewExp::NewExp(Loc loc, Expression *thisexp, Expressions *newargs, | |
| 3067 Type *newtype, Expressions *arguments) | |
| 3068 : Expression(loc, TOKnew, sizeof(NewExp)) | |
| 3069 { | |
| 3070 this->thisexp = thisexp; | |
| 3071 this->newargs = newargs; | |
| 3072 this->newtype = newtype; | |
| 3073 this->arguments = arguments; | |
| 3074 member = NULL; | |
| 3075 allocator = NULL; | |
| 3076 onstack = 0; | |
| 3077 } | |
| 3078 | |
| 3079 Expression *NewExp::syntaxCopy() | |
| 3080 { | |
| 3081 return new NewExp(loc, | |
| 3082 thisexp ? thisexp->syntaxCopy() : NULL, | |
| 3083 arraySyntaxCopy(newargs), | |
| 3084 newtype->syntaxCopy(), arraySyntaxCopy(arguments)); | |
| 3085 } | |
| 3086 | |
| 3087 | |
| 3088 Expression *NewExp::semantic(Scope *sc) | |
| 3089 { int i; | |
| 3090 Type *tb; | |
| 3091 ClassDeclaration *cdthis = NULL; | |
| 3092 | |
| 3093 #if LOGSEMANTIC | |
| 3094 printf("NewExp::semantic() %s\n", toChars()); | |
| 3095 if (thisexp) | |
| 3096 printf("\tthisexp = %s\n", thisexp->toChars()); | |
| 3097 printf("\tnewtype: %s\n", newtype->toChars()); | |
| 3098 #endif | |
| 3099 if (type) // if semantic() already run | |
| 3100 return this; | |
| 3101 | |
| 3102 Lagain: | |
| 3103 if (thisexp) | |
| 3104 { thisexp = thisexp->semantic(sc); | |
| 3105 cdthis = thisexp->type->isClassHandle(); | |
| 3106 if (cdthis) | |
| 3107 { | |
| 3108 sc = sc->push(cdthis); | |
| 3109 type = newtype->semantic(loc, sc); | |
| 3110 sc = sc->pop(); | |
| 3111 } | |
| 3112 else | |
| 3113 { | |
| 3114 error("'this' for nested class must be a class type, not %s", thisexp->type->toChars()); | |
| 3115 type = newtype->semantic(loc, sc); | |
| 3116 } | |
| 3117 } | |
| 3118 else | |
| 3119 type = newtype->semantic(loc, sc); | |
| 3120 newtype = type; // in case type gets cast to something else | |
| 3121 tb = type->toBasetype(); | |
| 3122 //printf("tb: %s, deco = %s\n", tb->toChars(), tb->deco); | |
| 3123 | |
| 3124 arrayExpressionSemantic(newargs, sc); | |
| 3125 preFunctionArguments(loc, sc, newargs); | |
| 3126 arrayExpressionSemantic(arguments, sc); | |
| 3127 preFunctionArguments(loc, sc, arguments); | |
| 3128 | |
| 3129 if (thisexp && tb->ty != Tclass) | |
| 3130 error("e.new is only for allocating nested classes, not %s", tb->toChars()); | |
| 3131 | |
| 3132 if (tb->ty == Tclass) | |
| 3133 { TypeFunction *tf; | |
| 3134 | |
| 3135 TypeClass *tc = (TypeClass *)(tb); | |
| 3136 ClassDeclaration *cd = tc->sym->isClassDeclaration(); | |
| 3137 if (cd->isInterfaceDeclaration()) | |
| 3138 error("cannot create instance of interface %s", cd->toChars()); | |
| 3139 else if (cd->isAbstract()) | |
| 3140 error("cannot create instance of abstract class %s", cd->toChars()); | |
| 3141 checkDeprecated(sc, cd); | |
| 3142 if (cd->isNested()) | |
| 3143 { /* We need a 'this' pointer for the nested class. | |
| 3144 * Ensure we have the right one. | |
| 3145 */ | |
| 3146 Dsymbol *s = cd->toParent2(); | |
| 3147 ClassDeclaration *cdn = s->isClassDeclaration(); | |
| 3148 | |
| 3149 //printf("isNested, cdn = %s\n", cdn ? cdn->toChars() : "null"); | |
| 3150 if (cdn) | |
| 3151 { | |
| 3152 if (!cdthis) | |
| 3153 { | |
| 3154 // Supply an implicit 'this' and try again | |
| 3155 thisexp = new ThisExp(loc); | |
| 3156 for (Dsymbol *sp = sc->parent; 1; sp = sp->parent) | |
| 3157 { if (!sp) | |
| 3158 { | |
| 3159 error("outer class %s 'this' needed to 'new' nested class %s", cdn->toChars(), cd->toChars()); | |
| 3160 break; | |
| 3161 } | |
| 3162 ClassDeclaration *cdp = sp->isClassDeclaration(); | |
| 3163 if (!cdp) | |
| 3164 continue; | |
| 3165 if (cdp == cdn || cdn->isBaseOf(cdp, NULL)) | |
| 3166 break; | |
| 3167 // Add a '.outer' and try again | |
| 3168 thisexp = new DotIdExp(loc, thisexp, Id::outer); | |
| 3169 } | |
| 3170 if (!global.errors) | |
| 3171 goto Lagain; | |
| 3172 } | |
| 3173 if (cdthis) | |
| 3174 { | |
| 3175 //printf("cdthis = %s\n", cdthis->toChars()); | |
| 3176 if (cdthis != cdn && !cdn->isBaseOf(cdthis, NULL)) | |
| 3177 error("'this' for nested class must be of type %s, not %s", cdn->toChars(), thisexp->type->toChars()); | |
| 3178 } | |
| 3179 #if 0 | |
| 3180 else | |
| 3181 { | |
| 3182 for (Dsymbol *sf = sc->func; 1; sf= sf->toParent2()->isFuncDeclaration()) | |
| 3183 { | |
| 3184 if (!sf) | |
| 3185 { | |
| 3186 error("outer class %s 'this' needed to 'new' nested class %s", cdn->toChars(), cd->toChars()); | |
| 3187 break; | |
| 3188 } | |
| 3189 printf("sf = %s\n", sf->toChars()); | |
| 3190 AggregateDeclaration *ad = sf->isThis(); | |
| 3191 if (ad && (ad == cdn || cdn->isBaseOf(ad->isClassDeclaration(), NULL))) | |
| 3192 break; | |
| 3193 } | |
| 3194 } | |
| 3195 #endif | |
| 3196 } | |
| 3197 else if (thisexp) | |
| 3198 error("e.new is only for allocating nested classes"); | |
| 3199 } | |
| 3200 else if (thisexp) | |
| 3201 error("e.new is only for allocating nested classes"); | |
| 3202 | |
| 3203 FuncDeclaration *f = cd->ctor; | |
| 3204 if (f) | |
| 3205 { | |
| 3206 assert(f); | |
| 3207 f = f->overloadResolve(loc, arguments); | |
| 3208 checkDeprecated(sc, f); | |
| 3209 member = f->isCtorDeclaration(); | |
| 3210 assert(member); | |
| 3211 | |
| 3212 cd->accessCheck(loc, sc, member); | |
| 3213 | |
| 3214 tf = (TypeFunction *)f->type; | |
| 3215 type = tf->next; | |
| 3216 | |
| 3217 if (!arguments) | |
| 3218 arguments = new Expressions(); | |
| 3219 functionArguments(loc, sc, tf, arguments); | |
| 3220 } | |
| 3221 else | |
| 3222 { | |
| 3223 if (arguments && arguments->dim) | |
| 3224 error("no constructor for %s", cd->toChars()); | |
| 3225 } | |
| 3226 | |
| 3227 if (cd->aggNew) | |
| 3228 { Expression *e; | |
| 3229 | |
| 3230 f = cd->aggNew; | |
| 3231 | |
| 3232 // Prepend the uint size argument to newargs[] | |
| 3233 e = new IntegerExp(loc, cd->size(loc), Type::tuns32); | |
| 3234 if (!newargs) | |
| 3235 newargs = new Expressions(); | |
| 3236 newargs->shift(e); | |
| 3237 | |
| 3238 f = f->overloadResolve(loc, newargs); | |
| 3239 allocator = f->isNewDeclaration(); | |
| 3240 assert(allocator); | |
| 3241 | |
| 3242 tf = (TypeFunction *)f->type; | |
| 3243 functionArguments(loc, sc, tf, newargs); | |
| 3244 } | |
| 3245 else | |
| 3246 { | |
| 3247 if (newargs && newargs->dim) | |
| 3248 error("no allocator for %s", cd->toChars()); | |
| 3249 } | |
| 3250 | |
| 3251 } | |
| 3252 else if (tb->ty == Tstruct) | |
| 3253 { | |
| 3254 TypeStruct *ts = (TypeStruct *)tb; | |
| 3255 StructDeclaration *sd = ts->sym; | |
| 3256 FuncDeclaration *f = sd->aggNew; | |
| 3257 TypeFunction *tf; | |
| 3258 | |
| 3259 if (arguments && arguments->dim) | |
| 3260 error("no constructor for %s", type->toChars()); | |
| 3261 | |
| 3262 if (f) | |
| 3263 { | |
| 3264 Expression *e; | |
| 3265 | |
| 3266 // Prepend the uint size argument to newargs[] | |
| 3267 e = new IntegerExp(loc, sd->size(loc), Type::tuns32); | |
| 3268 if (!newargs) | |
| 3269 newargs = new Expressions(); | |
| 3270 newargs->shift(e); | |
| 3271 | |
| 3272 f = f->overloadResolve(loc, newargs); | |
| 3273 allocator = f->isNewDeclaration(); | |
| 3274 assert(allocator); | |
| 3275 | |
| 3276 tf = (TypeFunction *)f->type; | |
| 3277 functionArguments(loc, sc, tf, newargs); | |
| 3278 | |
| 3279 e = new VarExp(loc, f); | |
| 3280 e = new CallExp(loc, e, newargs); | |
| 3281 e = e->semantic(sc); | |
| 3282 e->type = type->pointerTo(); | |
| 3283 return e; | |
| 3284 } | |
| 3285 | |
| 3286 type = type->pointerTo(); | |
| 3287 } | |
| 3288 else if (tb->ty == Tarray && (arguments && arguments->dim)) | |
| 3289 { | |
| 3290 for (size_t i = 0; i < arguments->dim; i++) | |
| 3291 { | |
| 3292 if (tb->ty != Tarray) | |
| 3293 { error("too many arguments for array"); | |
| 3294 arguments->dim = i; | |
| 3295 break; | |
| 3296 } | |
| 3297 | |
| 3298 Expression *arg = (Expression *)arguments->data[i]; | |
| 3299 arg = resolveProperties(sc, arg); | |
| 3300 arg = arg->implicitCastTo(sc, Type::tsize_t); | |
| 3301 if (arg->op == TOKint64 && (long long)arg->toInteger() < 0) | |
| 3302 error("negative array index %s", arg->toChars()); | |
| 3303 arguments->data[i] = (void *) arg; | |
| 3304 tb = tb->next->toBasetype(); | |
| 3305 } | |
| 3306 } | |
| 3307 else if (tb->isscalar()) | |
| 3308 { | |
| 3309 if (arguments && arguments->dim) | |
| 3310 error("no constructor for %s", type->toChars()); | |
| 3311 | |
| 3312 type = type->pointerTo(); | |
| 3313 } | |
| 3314 else | |
| 3315 { | |
| 3316 error("new can only create structs, dynamic arrays or class objects, not %s's", type->toChars()); | |
| 3317 type = type->pointerTo(); | |
| 3318 } | |
| 3319 | |
| 3320 //printf("NewExp: '%s'\n", toChars()); | |
| 3321 //printf("NewExp:type '%s'\n", type->toChars()); | |
| 3322 | |
| 3323 return this; | |
| 3324 } | |
| 3325 | |
| 3326 int NewExp::checkSideEffect(int flag) | |
| 3327 { | |
| 3328 return 1; | |
| 3329 } | |
| 3330 | |
| 3331 void NewExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3332 { int i; | |
| 3333 | |
| 3334 if (thisexp) | |
| 3335 { expToCBuffer(buf, hgs, thisexp, PREC_primary); | |
| 3336 buf->writeByte('.'); | |
| 3337 } | |
| 3338 buf->writestring("new "); | |
| 3339 if (newargs && newargs->dim) | |
| 3340 { | |
| 3341 buf->writeByte('('); | |
| 3342 argsToCBuffer(buf, newargs, hgs); | |
| 3343 buf->writeByte(')'); | |
| 3344 } | |
| 3345 newtype->toCBuffer(buf, NULL, hgs); | |
| 3346 if (arguments && arguments->dim) | |
| 3347 { | |
| 3348 buf->writeByte('('); | |
| 3349 argsToCBuffer(buf, arguments, hgs); | |
| 3350 buf->writeByte(')'); | |
| 3351 } | |
| 3352 } | |
| 3353 | |
| 3354 /********************** NewAnonClassExp **************************************/ | |
| 3355 | |
| 3356 NewAnonClassExp::NewAnonClassExp(Loc loc, Expression *thisexp, | |
| 3357 Expressions *newargs, ClassDeclaration *cd, Expressions *arguments) | |
| 3358 : Expression(loc, TOKnewanonclass, sizeof(NewAnonClassExp)) | |
| 3359 { | |
| 3360 this->thisexp = thisexp; | |
| 3361 this->newargs = newargs; | |
| 3362 this->cd = cd; | |
| 3363 this->arguments = arguments; | |
| 3364 } | |
| 3365 | |
| 3366 Expression *NewAnonClassExp::syntaxCopy() | |
| 3367 { | |
| 3368 return new NewAnonClassExp(loc, | |
| 3369 thisexp ? thisexp->syntaxCopy() : NULL, | |
| 3370 arraySyntaxCopy(newargs), | |
| 3371 (ClassDeclaration *)cd->syntaxCopy(NULL), | |
| 3372 arraySyntaxCopy(arguments)); | |
| 3373 } | |
| 3374 | |
| 3375 | |
| 3376 Expression *NewAnonClassExp::semantic(Scope *sc) | |
| 3377 { | |
| 3378 #if LOGSEMANTIC | |
| 3379 printf("NewAnonClassExp::semantic() %s\n", toChars()); | |
| 3380 //printf("type: %s\n", type->toChars()); | |
| 3381 #endif | |
| 3382 | |
| 3383 Expression *d = new DeclarationExp(loc, cd); | |
| 3384 d = d->semantic(sc); | |
| 3385 | |
| 3386 Expression *n = new NewExp(loc, thisexp, newargs, cd->type, arguments); | |
| 3387 | |
| 3388 Expression *c = new CommaExp(loc, d, n); | |
| 3389 return c->semantic(sc); | |
| 3390 } | |
| 3391 | |
| 3392 int NewAnonClassExp::checkSideEffect(int flag) | |
| 3393 { | |
| 3394 return 1; | |
| 3395 } | |
| 3396 | |
| 3397 void NewAnonClassExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3398 { int i; | |
| 3399 | |
| 3400 if (thisexp) | |
| 3401 { expToCBuffer(buf, hgs, thisexp, PREC_primary); | |
| 3402 buf->writeByte('.'); | |
| 3403 } | |
| 3404 buf->writestring("new"); | |
| 3405 if (newargs && newargs->dim) | |
| 3406 { | |
| 3407 buf->writeByte('('); | |
| 3408 argsToCBuffer(buf, newargs, hgs); | |
| 3409 buf->writeByte(')'); | |
| 3410 } | |
| 3411 buf->writestring(" class "); | |
| 3412 if (arguments && arguments->dim) | |
| 3413 { | |
| 3414 buf->writeByte('('); | |
| 3415 argsToCBuffer(buf, arguments, hgs); | |
| 3416 buf->writeByte(')'); | |
| 3417 } | |
| 3418 //buf->writestring(" { }"); | |
| 3419 if (cd) | |
| 3420 { | |
| 3421 cd->toCBuffer(buf, hgs); | |
| 3422 } | |
| 3423 } | |
| 3424 | |
| 3425 /********************** SymOffExp **************************************/ | |
| 3426 | |
| 3427 SymOffExp::SymOffExp(Loc loc, Declaration *var, unsigned offset) | |
| 3428 : Expression(loc, TOKsymoff, sizeof(SymOffExp)) | |
| 3429 { | |
| 3430 assert(var); | |
| 3431 this->var = var; | |
| 3432 this->offset = offset; | |
| 3433 VarDeclaration *v = var->isVarDeclaration(); | |
| 3434 if (v && v->needThis()) | |
| 3435 error("need 'this' for address of %s", v->toChars()); | |
| 3436 } | |
| 3437 | |
| 3438 Expression *SymOffExp::semantic(Scope *sc) | |
| 3439 { | |
| 3440 #if LOGSEMANTIC | |
| 3441 printf("SymOffExp::semantic('%s')\n", toChars()); | |
| 3442 #endif | |
| 3443 //var->semantic(sc); | |
| 3444 if (!type) | |
| 3445 type = var->type->pointerTo(); | |
| 3446 VarDeclaration *v = var->isVarDeclaration(); | |
| 3447 if (v) | |
| 3448 v->checkNestedReference(sc, loc); | |
| 3449 return this; | |
| 3450 } | |
| 3451 | |
| 3452 int SymOffExp::isBool(int result) | |
| 3453 { | |
| 3454 return result ? TRUE : FALSE; | |
| 3455 } | |
| 3456 | |
| 3457 void SymOffExp::checkEscape() | |
| 3458 { | |
| 3459 VarDeclaration *v = var->isVarDeclaration(); | |
| 3460 if (v) | |
| 3461 { | |
| 3462 if (!v->isDataseg()) | |
| 3463 error("escaping reference to local variable %s", v->toChars()); | |
| 3464 } | |
| 3465 } | |
| 3466 | |
| 3467 void SymOffExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3468 { | |
| 3469 if (offset) | |
| 3470 buf->printf("(& %s+%u)", var->toChars(), offset); | |
| 3471 else | |
| 3472 buf->printf("& %s", var->toChars()); | |
| 3473 } | |
| 3474 | |
| 3475 /******************************** VarExp **************************/ | |
| 3476 | |
| 3477 VarExp::VarExp(Loc loc, Declaration *var) | |
| 3478 : Expression(loc, TOKvar, sizeof(VarExp)) | |
| 3479 { | |
| 3480 //printf("VarExp(this = %p, '%s')\n", this, var->toChars()); | |
| 3481 this->var = var; | |
| 3482 this->type = var->type; | |
| 3483 } | |
| 3484 | |
| 3485 int VarExp::equals(Object *o) | |
| 3486 { VarExp *ne; | |
| 3487 | |
| 3488 if (this == o || | |
| 3489 (((Expression *)o)->op == TOKvar && | |
| 3490 ((ne = (VarExp *)o), type->equals(ne->type)) && | |
| 3491 var == ne->var)) | |
| 3492 return 1; | |
| 3493 return 0; | |
| 3494 } | |
| 3495 | |
| 3496 Expression *VarExp::semantic(Scope *sc) | |
| 3497 { FuncLiteralDeclaration *fd; | |
| 3498 | |
| 3499 #if LOGSEMANTIC | |
| 3500 printf("VarExp::semantic(%s)\n", toChars()); | |
| 3501 #endif | |
| 3502 if (!type) | |
| 3503 { type = var->type; | |
| 3504 #if 0 | |
| 3505 if (var->storage_class & STClazy) | |
| 3506 { | |
| 3507 TypeFunction *tf = new TypeFunction(NULL, type, 0, LINKd); | |
| 3508 type = new TypeDelegate(tf); | |
| 3509 type = type->semantic(loc, sc); | |
| 3510 } | |
| 3511 #endif | |
| 3512 } | |
| 3513 | |
| 3514 VarDeclaration *v = var->isVarDeclaration(); | |
| 3515 if (v) | |
| 3516 { | |
| 3517 if (v->isConst() && type->toBasetype()->ty != Tsarray && v->init) | |
| 3518 { | |
| 3519 ExpInitializer *ei = v->init->isExpInitializer(); | |
| 3520 if (ei) | |
| 3521 { | |
| 3522 //ei->exp->implicitCastTo(sc, type)->print(); | |
| 3523 return ei->exp->implicitCastTo(sc, type); | |
| 3524 } | |
| 3525 } | |
| 3526 v->checkNestedReference(sc, loc); | |
| 3527 } | |
| 3528 #if 0 | |
| 3529 else if ((fd = var->isFuncLiteralDeclaration()) != NULL) | |
| 3530 { Expression *e; | |
| 3531 e = new FuncExp(loc, fd); | |
| 3532 e->type = type; | |
| 3533 return e; | |
| 3534 } | |
| 3535 #endif | |
| 3536 return this; | |
| 3537 } | |
| 3538 | |
| 3539 char *VarExp::toChars() | |
| 3540 { | |
| 3541 return var->toChars(); | |
| 3542 } | |
| 3543 | |
| 3544 void VarExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3545 { | |
| 3546 buf->writestring(var->toChars()); | |
| 3547 } | |
| 3548 | |
| 3549 void VarExp::checkEscape() | |
| 3550 { | |
| 3551 VarDeclaration *v = var->isVarDeclaration(); | |
| 3552 if (v) | |
| 3553 { Type *tb = v->type->toBasetype(); | |
| 3554 // if reference type | |
| 3555 if (tb->ty == Tarray || tb->ty == Tsarray || tb->ty == Tclass) | |
| 3556 { | |
| 3557 if ((v->isAuto() || v->isScope()) && !v->noauto) | |
| 3558 error("escaping reference to auto local %s", v->toChars()); | |
| 3559 else if (v->storage_class & STCvariadic) | |
| 3560 error("escaping reference to variadic parameter %s", v->toChars()); | |
| 3561 } | |
| 3562 } | |
| 3563 } | |
| 3564 | |
| 3565 Expression *VarExp::toLvalue(Scope *sc, Expression *e) | |
| 3566 { | |
| 3567 #if 0 | |
| 3568 tym = tybasic(e1->ET->Tty); | |
| 3569 if (!(tyscalar(tym) || | |
| 3570 tym == TYstruct || | |
| 3571 tym == TYarray && e->Eoper == TOKaddr)) | |
| 3572 synerr(EM_lvalue); // lvalue expected | |
| 3573 #endif | |
| 3574 if (var->storage_class & STClazy) | |
| 3575 error("lazy variables cannot be lvalues"); | |
| 3576 return this; | |
| 3577 } | |
| 3578 | |
| 3579 Expression *VarExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 3580 { | |
| 3581 //printf("VarExp::modifiableLvalue('%s')\n", var->toChars()); | |
| 3582 if (sc->incontract && var->isParameter()) | |
| 3583 error("cannot modify parameter '%s' in contract", var->toChars()); | |
| 3584 | |
| 3585 if (type && type->toBasetype()->ty == Tsarray) | |
| 3586 error("cannot change reference to static array '%s'", var->toChars()); | |
| 3587 | |
| 3588 VarDeclaration *v = var->isVarDeclaration(); | |
| 3589 if (v && v->canassign == 0 && | |
| 3590 (var->isConst() || (global.params.Dversion > 1 && var->isFinal()))) | |
| 3591 error("cannot modify final variable '%s'", var->toChars()); | |
| 3592 | |
| 3593 if (var->isCtorinit()) | |
| 3594 { // It's only modifiable if inside the right constructor | |
| 3595 Dsymbol *s = sc->func; | |
| 3596 while (1) | |
| 3597 { | |
| 3598 FuncDeclaration *fd = NULL; | |
| 3599 if (s) | |
| 3600 fd = s->isFuncDeclaration(); | |
| 3601 if (fd && | |
| 3602 ((fd->isCtorDeclaration() && var->storage_class & STCfield) || | |
| 3603 (fd->isStaticCtorDeclaration() && !(var->storage_class & STCfield))) && | |
| 3604 fd->toParent() == var->toParent() | |
| 3605 ) | |
| 3606 { | |
| 3607 VarDeclaration *v = var->isVarDeclaration(); | |
| 3608 assert(v); | |
| 3609 v->ctorinit = 1; | |
| 3610 //printf("setting ctorinit\n"); | |
| 3611 } | |
| 3612 else | |
| 3613 { | |
| 3614 if (s) | |
| 3615 { s = s->toParent2(); | |
| 3616 continue; | |
| 3617 } | |
| 3618 else | |
| 3619 { | |
| 3620 const char *p = var->isStatic() ? "static " : ""; | |
| 3621 error("can only initialize %sconst %s inside %sconstructor", | |
| 3622 p, var->toChars(), p); | |
| 3623 } | |
| 3624 } | |
| 3625 break; | |
| 3626 } | |
| 3627 } | |
| 3628 | |
| 3629 // See if this expression is a modifiable lvalue (i.e. not const) | |
| 3630 return toLvalue(sc, e); | |
| 3631 } | |
| 3632 | |
| 3633 | |
| 3634 /******************************** TupleExp **************************/ | |
| 3635 | |
| 3636 TupleExp::TupleExp(Loc loc, Expressions *exps) | |
| 3637 : Expression(loc, TOKtuple, sizeof(TupleExp)) | |
| 3638 { | |
| 3639 //printf("TupleExp(this = %p)\n", this); | |
| 3640 this->exps = exps; | |
| 3641 this->type = NULL; | |
| 3642 } | |
| 3643 | |
| 3644 | |
| 3645 TupleExp::TupleExp(Loc loc, TupleDeclaration *tup) | |
| 3646 : Expression(loc, TOKtuple, sizeof(TupleExp)) | |
| 3647 { | |
| 3648 exps = new Expressions(); | |
| 3649 type = NULL; | |
| 3650 | |
| 3651 exps->reserve(tup->objects->dim); | |
| 3652 for (size_t i = 0; i < tup->objects->dim; i++) | |
| 3653 { Object *o = (Object *)tup->objects->data[i]; | |
| 3654 if (o->dyncast() == DYNCAST_EXPRESSION) | |
| 3655 { | |
| 3656 Expression *e = (Expression *)o; | |
| 3657 e = e->syntaxCopy(); | |
| 3658 exps->push(e); | |
| 3659 } | |
| 3660 else if (o->dyncast() == DYNCAST_DSYMBOL) | |
| 3661 { | |
| 3662 Dsymbol *s = (Dsymbol *)o; | |
| 3663 Expression *e = new DsymbolExp(loc, s); | |
| 3664 exps->push(e); | |
| 3665 } | |
| 3666 else if (o->dyncast() == DYNCAST_TYPE) | |
| 3667 { | |
| 3668 Type *t = (Type *)o; | |
| 3669 Expression *e = new TypeExp(loc, t); | |
| 3670 exps->push(e); | |
| 3671 } | |
| 3672 else | |
| 3673 { | |
| 3674 error("%s is not an expression", o->toChars()); | |
| 3675 } | |
| 3676 } | |
| 3677 } | |
| 3678 | |
| 3679 int TupleExp::equals(Object *o) | |
| 3680 { TupleExp *ne; | |
| 3681 | |
| 3682 if (this == o) | |
| 3683 return 1; | |
| 3684 if (((Expression *)o)->op == TOKtuple) | |
| 3685 { | |
| 3686 TupleExp *te = (TupleExp *)o; | |
| 3687 if (exps->dim != te->exps->dim) | |
| 3688 return 0; | |
| 3689 for (size_t i = 0; i < exps->dim; i++) | |
| 3690 { Expression *e1 = (Expression *)exps->data[i]; | |
| 3691 Expression *e2 = (Expression *)te->exps->data[i]; | |
| 3692 | |
| 3693 if (!e1->equals(e2)) | |
| 3694 return 0; | |
| 3695 } | |
| 3696 return 1; | |
| 3697 } | |
| 3698 return 0; | |
| 3699 } | |
| 3700 | |
| 3701 Expression *TupleExp::syntaxCopy() | |
| 3702 { | |
| 3703 return new TupleExp(loc, arraySyntaxCopy(exps)); | |
| 3704 } | |
| 3705 | |
| 3706 Expression *TupleExp::semantic(Scope *sc) | |
| 3707 { | |
| 3708 #if LOGSEMANTIC | |
| 3709 printf("+TupleExp::semantic(%s)\n", toChars()); | |
| 3710 #endif | |
| 3711 if (type) | |
| 3712 return this; | |
| 3713 | |
| 3714 // Run semantic() on each argument | |
| 3715 for (size_t i = 0; i < exps->dim; i++) | |
| 3716 { Expression *e = (Expression *)exps->data[i]; | |
| 3717 | |
| 3718 e = e->semantic(sc); | |
| 3719 if (!e->type) | |
| 3720 { error("%s has no value", e->toChars()); | |
| 3721 e->type = Type::terror; | |
| 3722 } | |
| 3723 exps->data[i] = (void *)e; | |
| 3724 } | |
| 3725 | |
| 3726 expandTuples(exps); | |
| 3727 if (0 && exps->dim == 1) | |
| 3728 { | |
| 3729 return (Expression *)exps->data[0]; | |
| 3730 } | |
| 3731 type = new TypeTuple(exps); | |
| 3732 //printf("-TupleExp::semantic(%s)\n", toChars()); | |
| 3733 return this; | |
| 3734 } | |
| 3735 | |
| 3736 void TupleExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3737 { | |
| 3738 buf->writestring("tuple("); | |
| 3739 argsToCBuffer(buf, exps, hgs); | |
| 3740 buf->writeByte(')'); | |
| 3741 } | |
| 3742 | |
| 3743 int TupleExp::checkSideEffect(int flag) | |
| 3744 { int f = 0; | |
| 3745 | |
| 3746 for (int i = 0; i < exps->dim; i++) | |
| 3747 { Expression *e = (Expression *)exps->data[i]; | |
| 3748 | |
| 3749 f |= e->checkSideEffect(2); | |
| 3750 } | |
| 3751 if (flag == 0 && f == 0) | |
| 3752 Expression::checkSideEffect(0); | |
| 3753 return f; | |
| 3754 } | |
| 3755 | |
| 3756 void TupleExp::checkEscape() | |
| 3757 { | |
| 3758 for (size_t i = 0; i < exps->dim; i++) | |
| 3759 { Expression *e = (Expression *)exps->data[i]; | |
| 3760 e->checkEscape(); | |
| 3761 } | |
| 3762 } | |
| 3763 | |
| 3764 /******************************** FuncExp *********************************/ | |
| 3765 | |
| 3766 FuncExp::FuncExp(Loc loc, FuncLiteralDeclaration *fd) | |
| 3767 : Expression(loc, TOKfunction, sizeof(FuncExp)) | |
| 3768 { | |
| 3769 this->fd = fd; | |
| 3770 } | |
| 3771 | |
| 3772 Expression *FuncExp::syntaxCopy() | |
| 3773 { | |
| 3774 return new FuncExp(loc, (FuncLiteralDeclaration *)fd->syntaxCopy(NULL)); | |
| 3775 } | |
| 3776 | |
| 3777 Expression *FuncExp::semantic(Scope *sc) | |
| 3778 { | |
| 3779 #if LOGSEMANTIC | |
| 3780 printf("FuncExp::semantic(%s)\n", toChars()); | |
| 3781 #endif | |
| 3782 if (!type) | |
| 3783 { | |
| 3784 fd->semantic(sc); | |
| 3785 fd->parent = sc->parent; | |
| 3786 if (global.errors) | |
| 3787 { | |
| 3788 if (!fd->type->next) | |
| 3789 fd->type->next = Type::terror; | |
| 3790 } | |
| 3791 else | |
| 3792 { | |
| 3793 fd->semantic2(sc); | |
| 3794 if (!global.errors) | |
| 3795 { | |
| 3796 fd->semantic3(sc); | |
| 3797 | |
| 3798 if (!global.errors && global.params.useInline) | |
| 3799 fd->inlineScan(); | |
| 3800 } | |
| 3801 } | |
| 3802 | |
| 3803 // Type is a "delegate to" or "pointer to" the function literal | |
| 3804 if (fd->isNested()) | |
| 3805 { | |
| 3806 type = new TypeDelegate(fd->type); | |
| 3807 type = type->semantic(loc, sc); | |
| 3808 } | |
| 3809 else | |
| 3810 { | |
| 3811 type = fd->type->pointerTo(); | |
| 3812 } | |
| 3813 } | |
| 3814 return this; | |
| 3815 } | |
| 3816 | |
| 3817 char *FuncExp::toChars() | |
| 3818 { | |
| 3819 return fd->toChars(); | |
| 3820 } | |
| 3821 | |
| 3822 void FuncExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3823 { | |
| 3824 buf->writestring(fd->toChars()); | |
| 3825 } | |
| 3826 | |
| 3827 | |
| 3828 /******************************** DeclarationExp **************************/ | |
| 3829 | |
| 3830 DeclarationExp::DeclarationExp(Loc loc, Dsymbol *declaration) | |
| 3831 : Expression(loc, TOKdeclaration, sizeof(DeclarationExp)) | |
| 3832 { | |
| 3833 this->declaration = declaration; | |
| 3834 } | |
| 3835 | |
| 3836 Expression *DeclarationExp::syntaxCopy() | |
| 3837 { | |
| 3838 return new DeclarationExp(loc, declaration->syntaxCopy(NULL)); | |
| 3839 } | |
| 3840 | |
| 3841 Expression *DeclarationExp::semantic(Scope *sc) | |
| 3842 { | |
| 3843 if (type) | |
| 3844 return this; | |
| 3845 | |
| 3846 #if LOGSEMANTIC | |
| 3847 printf("DeclarationExp::semantic() %s\n", toChars()); | |
| 3848 #endif | |
| 3849 | |
| 3850 /* This is here to support extern(linkage) declaration, | |
| 3851 * where the extern(linkage) winds up being an AttribDeclaration | |
| 3852 * wrapper. | |
| 3853 */ | |
| 3854 Dsymbol *s = declaration; | |
| 3855 | |
| 3856 AttribDeclaration *ad = declaration->isAttribDeclaration(); | |
| 3857 if (ad) | |
| 3858 { | |
| 3859 if (ad->decl && ad->decl->dim == 1) | |
| 3860 s = (Dsymbol *)ad->decl->data[0]; | |
| 3861 } | |
| 3862 | |
| 3863 if (s->isVarDeclaration()) | |
| 3864 { // Do semantic() on initializer first, so: | |
| 3865 // int a = a; | |
| 3866 // will be illegal. | |
| 3867 declaration->semantic(sc); | |
| 3868 s->parent = sc->parent; | |
| 3869 } | |
| 3870 | |
| 3871 //printf("inserting '%s' %p into sc = %p\n", s->toChars(), s, sc); | |
| 3872 // Insert into both local scope and function scope. | |
| 3873 // Must be unique in both. | |
| 3874 if (s->ident) | |
| 3875 { | |
| 3876 if (!sc->insert(s)) | |
| 3877 error("declaration %s is already defined", s->toPrettyChars()); | |
| 3878 else if (sc->func) | |
| 3879 { VarDeclaration *v = s->isVarDeclaration(); | |
| 3880 if ((s->isFuncDeclaration() /*|| v && v->storage_class & STCstatic*/) && | |
| 3881 !sc->func->localsymtab->insert(s)) | |
| 3882 error("declaration %s is already defined in another scope in %s", s->toPrettyChars(), sc->func->toChars()); | |
| 3883 else if (!global.params.useDeprecated) | |
| 3884 { // Disallow shadowing | |
| 3885 | |
| 3886 for (Scope *scx = sc->enclosing; scx && scx->func == sc->func; scx = scx->enclosing) | |
| 3887 { Dsymbol *s2; | |
| 3888 | |
| 3889 if (scx->scopesym && scx->scopesym->symtab && | |
| 3890 (s2 = scx->scopesym->symtab->lookup(s->ident)) != NULL && | |
| 3891 s != s2) | |
| 3892 { | |
| 3893 error("shadowing declaration %s is deprecated", s->toPrettyChars()); | |
| 3894 } | |
| 3895 } | |
| 3896 } | |
| 3897 } | |
| 3898 } | |
| 3899 if (!s->isVarDeclaration()) | |
| 3900 { | |
| 3901 declaration->semantic(sc); | |
| 3902 s->parent = sc->parent; | |
| 3903 } | |
| 3904 if (!global.errors) | |
| 3905 { | |
| 3906 declaration->semantic2(sc); | |
| 3907 if (!global.errors) | |
| 3908 { | |
| 3909 declaration->semantic3(sc); | |
| 3910 | |
| 3911 if (!global.errors && global.params.useInline) | |
| 3912 declaration->inlineScan(); | |
| 3913 } | |
| 3914 } | |
| 3915 | |
| 3916 type = Type::tvoid; | |
| 3917 return this; | |
| 3918 } | |
| 3919 | |
| 3920 int DeclarationExp::checkSideEffect(int flag) | |
| 3921 { | |
| 3922 return 1; | |
| 3923 } | |
| 3924 | |
| 3925 void DeclarationExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3926 { | |
| 3927 declaration->toCBuffer(buf, hgs); | |
| 3928 } | |
| 3929 | |
| 3930 | |
| 3931 /************************ TypeidExp ************************************/ | |
| 3932 | |
| 3933 /* | |
| 3934 * typeid(int) | |
| 3935 */ | |
| 3936 | |
| 3937 TypeidExp::TypeidExp(Loc loc, Type *typeidType) | |
| 3938 : Expression(loc, TOKtypeid, sizeof(TypeidExp)) | |
| 3939 { | |
| 3940 this->typeidType = typeidType; | |
| 3941 } | |
| 3942 | |
| 3943 | |
| 3944 Expression *TypeidExp::syntaxCopy() | |
| 3945 { | |
| 3946 return new TypeidExp(loc, typeidType->syntaxCopy()); | |
| 3947 } | |
| 3948 | |
| 3949 | |
| 3950 Expression *TypeidExp::semantic(Scope *sc) | |
| 3951 { Expression *e; | |
| 3952 | |
| 3953 #if LOGSEMANTIC | |
| 3954 printf("TypeidExp::semantic()\n"); | |
| 3955 #endif | |
| 3956 typeidType = typeidType->semantic(loc, sc); | |
| 3957 e = typeidType->getTypeInfo(sc); | |
| 3958 return e; | |
| 3959 } | |
| 3960 | |
| 3961 void TypeidExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3962 { | |
| 3963 buf->writestring("typeid("); | |
| 3964 typeidType->toCBuffer(buf, NULL, hgs); | |
| 3965 buf->writeByte(')'); | |
| 3966 } | |
| 3967 | |
| 3968 /************************************************************/ | |
| 3969 | |
| 3970 HaltExp::HaltExp(Loc loc) | |
| 3971 : Expression(loc, TOKhalt, sizeof(HaltExp)) | |
| 3972 { | |
| 3973 } | |
| 3974 | |
| 3975 Expression *HaltExp::semantic(Scope *sc) | |
| 3976 { | |
| 3977 #if LOGSEMANTIC | |
| 3978 printf("HaltExp::semantic()\n"); | |
| 3979 #endif | |
| 3980 type = Type::tvoid; | |
| 3981 return this; | |
| 3982 } | |
| 3983 | |
| 3984 int HaltExp::checkSideEffect(int flag) | |
| 3985 { | |
| 3986 return 1; | |
| 3987 } | |
| 3988 | |
| 3989 void HaltExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3990 { | |
| 3991 buf->writestring("halt"); | |
| 3992 } | |
| 3993 | |
| 3994 /************************************************************/ | |
| 3995 | |
| 19 | 3996 IsExp::IsExp(Loc loc, Type *targ, Identifier *id, enum TOK tok, |
| 1 | 3997 Type *tspec, enum TOK tok2) |
| 19 | 3998 : Expression(loc, TOKis, sizeof(IsExp)) |
| 1 | 3999 { |
| 4000 this->targ = targ; | |
| 4001 this->id = id; | |
| 4002 this->tok = tok; | |
| 4003 this->tspec = tspec; | |
| 4004 this->tok2 = tok2; | |
| 4005 } | |
| 4006 | |
| 19 | 4007 Expression *IsExp::syntaxCopy() |
| 4008 { | |
| 4009 return new IsExp(loc, | |
| 1 | 4010 targ->syntaxCopy(), |
| 4011 id, | |
| 4012 tok, | |
| 4013 tspec ? tspec->syntaxCopy() : NULL, | |
| 4014 tok2); | |
| 4015 } | |
| 4016 | |
| 19 | 4017 Expression *IsExp::semantic(Scope *sc) |
| 1 | 4018 { Type *tded; |
| 4019 | |
| 19 | 4020 //printf("IsExp::semantic()\n"); |
| 1 | 4021 if (id && !(sc->flags & SCOPEstaticif)) |
| 4022 error("can only declare type aliases within static if conditionals"); | |
| 4023 | |
| 4024 unsigned errors_save = global.errors; | |
| 4025 global.errors = 0; | |
| 4026 global.gag++; // suppress printing of error messages | |
| 4027 targ = targ->semantic(loc, sc); | |
| 4028 global.gag--; | |
| 4029 unsigned gerrors = global.errors; | |
| 4030 global.errors = errors_save; | |
| 4031 | |
| 4032 if (gerrors) // if any errors happened | |
| 4033 { // then condition is false | |
| 4034 goto Lno; | |
| 4035 } | |
| 4036 else if (tok2 != TOKreserved) | |
| 4037 { | |
| 4038 switch (tok2) | |
| 4039 { | |
| 4040 case TOKtypedef: | |
| 4041 if (targ->ty != Ttypedef) | |
| 4042 goto Lno; | |
| 4043 tded = ((TypeTypedef *)targ)->sym->basetype; | |
| 4044 break; | |
| 4045 | |
| 4046 case TOKstruct: | |
| 4047 if (targ->ty != Tstruct) | |
| 4048 goto Lno; | |
| 4049 if (((TypeStruct *)targ)->sym->isUnionDeclaration()) | |
| 4050 goto Lno; | |
| 4051 tded = targ; | |
| 4052 break; | |
| 4053 | |
| 4054 case TOKunion: | |
| 4055 if (targ->ty != Tstruct) | |
| 4056 goto Lno; | |
| 4057 if (!((TypeStruct *)targ)->sym->isUnionDeclaration()) | |
| 4058 goto Lno; | |
| 4059 tded = targ; | |
| 4060 break; | |
| 4061 | |
| 4062 case TOKclass: | |
| 4063 if (targ->ty != Tclass) | |
| 4064 goto Lno; | |
| 4065 if (((TypeClass *)targ)->sym->isInterfaceDeclaration()) | |
| 4066 goto Lno; | |
| 4067 tded = targ; | |
| 4068 break; | |
| 4069 | |
| 4070 case TOKinterface: | |
| 4071 if (targ->ty != Tclass) | |
| 4072 goto Lno; | |
| 4073 if (!((TypeClass *)targ)->sym->isInterfaceDeclaration()) | |
| 4074 goto Lno; | |
| 4075 tded = targ; | |
| 4076 break; | |
| 4077 | |
| 4078 case TOKsuper: | |
| 4079 // If class or interface, get the base class and interfaces | |
| 4080 if (targ->ty != Tclass) | |
| 4081 goto Lno; | |
| 4082 else | |
| 4083 { ClassDeclaration *cd = ((TypeClass *)targ)->sym; | |
| 4084 Arguments *args = new Arguments; | |
| 4085 args->reserve(cd->baseclasses.dim); | |
| 4086 for (size_t i = 0; i < cd->baseclasses.dim; i++) | |
| 4087 { BaseClass *b = (BaseClass *)cd->baseclasses.data[i]; | |
| 4088 args->push(new Argument(STCin, b->type, NULL, NULL)); | |
| 4089 } | |
| 4090 tded = new TypeTuple(args); | |
| 4091 } | |
| 4092 break; | |
| 4093 | |
| 4094 case TOKenum: | |
| 4095 if (targ->ty != Tenum) | |
| 4096 goto Lno; | |
| 4097 tded = ((TypeEnum *)targ)->sym->memtype; | |
| 4098 break; | |
| 4099 | |
| 4100 case TOKdelegate: | |
| 4101 if (targ->ty != Tdelegate) | |
| 4102 goto Lno; | |
| 4103 tded = targ->next; // the underlying function type | |
| 4104 break; | |
| 4105 | |
| 4106 case TOKfunction: | |
| 4107 { if (targ->ty != Tfunction) | |
| 4108 goto Lno; | |
| 4109 tded = targ; | |
| 4110 | |
| 4111 /* Generate tuple from function parameter types. | |
| 4112 */ | |
| 4113 assert(tded->ty == Tfunction); | |
| 4114 Arguments *params = ((TypeFunction *)tded)->parameters; | |
| 4115 size_t dim = Argument::dim(params); | |
| 4116 Arguments *args = new Arguments; | |
| 4117 args->reserve(dim); | |
| 4118 for (size_t i = 0; i < dim; i++) | |
| 4119 { Argument *arg = Argument::getNth(params, i); | |
| 4120 assert(arg && arg->type); | |
| 4121 args->push(new Argument(arg->storageClass, arg->type, NULL, NULL)); | |
| 4122 } | |
| 4123 tded = new TypeTuple(args); | |
| 4124 break; | |
| 4125 } | |
| 4126 case TOKreturn: | |
| 4127 /* Get the 'return type' for the function, | |
| 4128 * delegate, or pointer to function. | |
| 4129 */ | |
| 4130 if (targ->ty == Tfunction) | |
| 4131 tded = targ->next; | |
| 4132 else if (targ->ty == Tdelegate) | |
| 4133 tded = targ->next->next; | |
| 4134 else if (targ->ty == Tpointer && targ->next->ty == Tfunction) | |
| 4135 tded = targ->next->next; | |
| 4136 else | |
| 4137 goto Lno; | |
| 4138 break; | |
| 4139 | |
| 4140 default: | |
| 4141 assert(0); | |
| 4142 } | |
| 4143 goto Lyes; | |
| 4144 } | |
| 4145 else if (id && tspec) | |
| 4146 { | |
| 4147 /* Evaluate to TRUE if targ matches tspec. | |
| 4148 * If TRUE, declare id as an alias for the specialized type. | |
| 4149 */ | |
| 4150 | |
| 4151 MATCH m; | |
| 4152 TemplateTypeParameter tp(loc, id, NULL, NULL); | |
| 4153 | |
| 4154 TemplateParameters parameters; | |
| 4155 parameters.setDim(1); | |
| 4156 parameters.data[0] = (void *)&tp; | |
| 4157 | |
| 4158 Objects dedtypes; | |
| 4159 dedtypes.setDim(1); | |
| 4160 dedtypes.data[0] = NULL; | |
| 4161 | |
| 4162 m = targ->deduceType(NULL, tspec, ¶meters, &dedtypes); | |
| 4163 if (m == MATCHnomatch || | |
| 4164 (m != MATCHexact && tok == TOKequal)) | |
| 4165 goto Lno; | |
| 4166 else | |
| 4167 { | |
| 4168 assert(dedtypes.dim == 1); | |
| 4169 tded = (Type *)dedtypes.data[0]; | |
| 4170 if (!tded) | |
| 4171 tded = targ; | |
| 4172 goto Lyes; | |
| 4173 } | |
| 4174 } | |
| 4175 else if (id) | |
| 4176 { | |
| 4177 /* Declare id as an alias for type targ. Evaluate to TRUE | |
| 4178 */ | |
| 4179 tded = targ; | |
| 4180 goto Lyes; | |
| 4181 } | |
| 4182 else if (tspec) | |
| 4183 { | |
| 4184 /* Evaluate to TRUE if targ matches tspec | |
| 4185 */ | |
| 4186 tspec = tspec->semantic(loc, sc); | |
| 4187 //printf("targ = %s\n", targ->toChars()); | |
| 4188 //printf("tspec = %s\n", tspec->toChars()); | |
| 4189 if (tok == TOKcolon) | |
| 4190 { if (targ->implicitConvTo(tspec)) | |
| 4191 goto Lyes; | |
| 4192 else | |
| 4193 goto Lno; | |
| 4194 } | |
| 4195 else /* == */ | |
| 4196 { if (targ->equals(tspec)) | |
| 4197 goto Lyes; | |
| 4198 else | |
| 4199 goto Lno; | |
| 4200 } | |
| 4201 } | |
| 4202 | |
| 4203 Lyes: | |
| 4204 if (id) | |
| 4205 { | |
| 4206 Dsymbol *s = new AliasDeclaration(loc, id, tded); | |
| 4207 s->semantic(sc); | |
| 4208 sc->insert(s); | |
| 4209 if (sc->sd) | |
| 4210 s->addMember(sc, sc->sd, 1); | |
| 4211 } | |
| 4212 return new IntegerExp(1); | |
| 4213 | |
| 4214 Lno: | |
| 4215 return new IntegerExp(0); | |
| 4216 } | |
| 4217 | |
| 19 | 4218 void IsExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 1 | 4219 { |
| 4220 buf->writestring("is("); | |
| 4221 targ->toCBuffer(buf, id, hgs); | |
| 19 | 4222 if (tok2 != TOKreserved) |
| 4223 { | |
| 4224 buf->printf(" %s %s", Token::toChars(tok), Token::toChars(tok2)); | |
| 4225 } | |
| 4226 else if (tspec) | |
| 1 | 4227 { |
| 4228 if (tok == TOKcolon) | |
| 4229 buf->writestring(" : "); | |
| 4230 else | |
| 4231 buf->writestring(" == "); | |
| 4232 tspec->toCBuffer(buf, NULL, hgs); | |
| 4233 } | |
| 19 | 4234 #if V2 |
| 4235 if (parameters) | |
| 4236 { // First parameter is already output, so start with second | |
| 4237 for (int i = 1; i < parameters->dim; i++) | |
| 4238 { | |
| 4239 buf->writeByte(','); | |
| 4240 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 4241 tp->toCBuffer(buf, hgs); | |
| 4242 } | |
| 4243 } | |
| 4244 #endif | |
| 1 | 4245 buf->writeByte(')'); |
| 4246 } | |
| 4247 | |
| 4248 | |
| 4249 /************************************************************/ | |
| 4250 | |
| 4251 UnaExp::UnaExp(Loc loc, enum TOK op, int size, Expression *e1) | |
| 4252 : Expression(loc, op, size) | |
| 4253 { | |
| 4254 this->e1 = e1; | |
| 4255 } | |
| 4256 | |
| 4257 Expression *UnaExp::syntaxCopy() | |
| 4258 { UnaExp *e; | |
| 4259 | |
| 4260 e = (UnaExp *)copy(); | |
| 4261 e->type = NULL; | |
| 4262 e->e1 = e->e1->syntaxCopy(); | |
| 4263 return e; | |
| 4264 } | |
| 4265 | |
| 4266 Expression *UnaExp::semantic(Scope *sc) | |
| 4267 { | |
| 4268 #if LOGSEMANTIC | |
| 4269 printf("UnaExp::semantic('%s')\n", toChars()); | |
| 4270 #endif | |
| 4271 e1 = e1->semantic(sc); | |
| 4272 // if (!e1->type) | |
| 4273 // error("%s has no value", e1->toChars()); | |
| 4274 return this; | |
| 4275 } | |
| 4276 | |
| 4277 void UnaExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4278 { | |
| 4279 buf->writestring(Token::toChars(op)); | |
| 4280 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 4281 } | |
| 4282 | |
| 4283 /************************************************************/ | |
| 4284 | |
| 4285 BinExp::BinExp(Loc loc, enum TOK op, int size, Expression *e1, Expression *e2) | |
| 4286 : Expression(loc, op, size) | |
| 4287 { | |
| 4288 this->e1 = e1; | |
| 4289 this->e2 = e2; | |
| 4290 } | |
| 4291 | |
| 4292 Expression *BinExp::syntaxCopy() | |
| 4293 { BinExp *e; | |
| 4294 | |
| 4295 e = (BinExp *)copy(); | |
| 4296 e->type = NULL; | |
| 4297 e->e1 = e->e1->syntaxCopy(); | |
| 4298 e->e2 = e->e2->syntaxCopy(); | |
| 4299 return e; | |
| 4300 } | |
| 4301 | |
| 4302 Expression *BinExp::semantic(Scope *sc) | |
| 4303 { | |
| 4304 #if LOGSEMANTIC | |
| 4305 printf("BinExp::semantic('%s')\n", toChars()); | |
| 4306 #endif | |
| 4307 e1 = e1->semantic(sc); | |
| 4308 if (!e1->type) | |
| 4309 { | |
| 4310 error("%s has no value", e1->toChars()); | |
| 4311 e1->type = Type::terror; | |
| 4312 } | |
| 4313 e2 = e2->semantic(sc); | |
| 4314 if (!e2->type) | |
| 4315 { | |
| 4316 error("%s has no value", e2->toChars()); | |
| 4317 e2->type = Type::terror; | |
| 4318 } | |
| 4319 assert(e1->type); | |
| 4320 return this; | |
| 4321 } | |
| 4322 | |
| 4323 Expression *BinExp::semanticp(Scope *sc) | |
| 4324 { | |
| 4325 BinExp::semantic(sc); | |
| 4326 e1 = resolveProperties(sc, e1); | |
| 4327 e2 = resolveProperties(sc, e2); | |
| 4328 return this; | |
| 4329 } | |
| 4330 | |
| 4331 /*************************** | |
| 4332 * Common semantic routine for some xxxAssignExp's. | |
| 4333 */ | |
| 4334 | |
| 4335 Expression *BinExp::commonSemanticAssign(Scope *sc) | |
| 4336 { Expression *e; | |
| 4337 | |
| 4338 if (!type) | |
| 4339 { | |
| 4340 BinExp::semantic(sc); | |
| 4341 e2 = resolveProperties(sc, e2); | |
| 4342 | |
| 4343 e = op_overload(sc); | |
| 4344 if (e) | |
| 4345 return e; | |
| 4346 | |
| 4347 e1 = e1->modifiableLvalue(sc, NULL); | |
| 4348 e1->checkScalar(); | |
| 4349 type = e1->type; | |
| 4350 if (type->toBasetype()->ty == Tbool) | |
| 4351 { | |
| 4352 error("operator not allowed on bool expression %s", toChars()); | |
| 4353 } | |
| 4354 typeCombine(sc); | |
| 4355 e1->checkArithmetic(); | |
| 4356 e2->checkArithmetic(); | |
| 4357 | |
| 4358 if (op == TOKmodass && e2->type->iscomplex()) | |
| 4359 { error("cannot perform modulo complex arithmetic"); | |
| 4360 return new IntegerExp(0); | |
| 4361 } | |
| 4362 } | |
| 4363 return this; | |
| 4364 } | |
| 4365 | |
| 4366 Expression *BinExp::commonSemanticAssignIntegral(Scope *sc) | |
| 4367 { Expression *e; | |
| 4368 | |
| 4369 if (!type) | |
| 4370 { | |
| 4371 BinExp::semantic(sc); | |
| 4372 e2 = resolveProperties(sc, e2); | |
| 4373 | |
| 4374 e = op_overload(sc); | |
| 4375 if (e) | |
| 4376 return e; | |
| 4377 | |
| 4378 e1 = e1->modifiableLvalue(sc, NULL); | |
| 4379 e1->checkScalar(); | |
| 4380 type = e1->type; | |
| 4381 if (type->toBasetype()->ty == Tbool) | |
| 4382 { | |
| 4383 e2 = e2->implicitCastTo(sc, type); | |
| 4384 } | |
| 4385 | |
| 4386 typeCombine(sc); | |
| 4387 e1->checkIntegral(); | |
| 4388 e2->checkIntegral(); | |
| 4389 } | |
| 4390 return this; | |
| 4391 } | |
| 4392 | |
| 4393 int BinExp::checkSideEffect(int flag) | |
| 4394 { | |
| 4395 if (op == TOKplusplus || | |
| 4396 op == TOKminusminus || | |
| 4397 op == TOKassign || | |
| 4398 op == TOKaddass || | |
| 4399 op == TOKminass || | |
| 4400 op == TOKcatass || | |
| 4401 op == TOKmulass || | |
| 4402 op == TOKdivass || | |
| 4403 op == TOKmodass || | |
| 4404 op == TOKshlass || | |
| 4405 op == TOKshrass || | |
| 4406 op == TOKushrass || | |
| 4407 op == TOKandass || | |
| 4408 op == TOKorass || | |
| 4409 op == TOKxorass || | |
| 4410 op == TOKin || | |
| 4411 op == TOKremove) | |
| 4412 return 1; | |
| 4413 return Expression::checkSideEffect(flag); | |
| 4414 } | |
| 4415 | |
| 4416 void BinExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4417 { | |
| 4418 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 4419 buf->writeByte(' '); | |
| 4420 buf->writestring(Token::toChars(op)); | |
| 4421 buf->writeByte(' '); | |
| 4422 expToCBuffer(buf, hgs, e2, (enum PREC)(precedence[op] + 1)); | |
| 4423 } | |
| 4424 | |
| 4425 int BinExp::isunsigned() | |
| 4426 { | |
| 4427 return e1->type->isunsigned() || e2->type->isunsigned(); | |
| 4428 } | |
| 4429 | |
| 4430 void BinExp::incompatibleTypes() | |
| 4431 { | |
| 4432 error("incompatible types for ((%s) %s (%s)): '%s' and '%s'", | |
| 4433 e1->toChars(), Token::toChars(op), e2->toChars(), | |
| 4434 e1->type->toChars(), e2->type->toChars()); | |
| 4435 } | |
| 4436 | |
| 4437 /************************************************************/ | |
| 4438 | |
| 4439 CompileExp::CompileExp(Loc loc, Expression *e) | |
| 4440 : UnaExp(loc, TOKmixin, sizeof(CompileExp), e) | |
| 4441 { | |
| 4442 } | |
| 4443 | |
| 4444 Expression *CompileExp::semantic(Scope *sc) | |
| 4445 { | |
| 4446 #if LOGSEMANTIC | |
| 4447 printf("CompileExp::semantic('%s')\n", toChars()); | |
| 4448 #endif | |
| 4449 UnaExp::semantic(sc); | |
| 4450 e1 = resolveProperties(sc, e1); | |
| 4451 e1 = e1->optimize(WANTvalue | WANTinterpret); | |
| 4452 if (e1->op != TOKstring) | |
| 4453 { error("argument to mixin must be a string, not (%s)", e1->toChars()); | |
| 4454 type = Type::terror; | |
| 4455 return this; | |
| 4456 } | |
| 4457 StringExp *se = (StringExp *)e1; | |
| 4458 se = se->toUTF8(sc); | |
| 4459 Parser p(sc->module, (unsigned char *)se->string, se->len, 0); | |
| 4460 p.loc = loc; | |
| 4461 p.nextToken(); | |
| 4462 Expression *e = p.parseExpression(); | |
| 4463 if (p.token.value != TOKeof) | |
| 4464 error("incomplete mixin expression (%s)", se->toChars()); | |
| 4465 return e->semantic(sc); | |
| 4466 } | |
| 4467 | |
| 4468 void CompileExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4469 { | |
| 4470 buf->writestring("mixin("); | |
| 4471 expToCBuffer(buf, hgs, e1, PREC_assign); | |
| 4472 buf->writeByte(')'); | |
| 4473 } | |
| 4474 | |
| 4475 /************************************************************/ | |
| 4476 | |
| 4477 FileExp::FileExp(Loc loc, Expression *e) | |
| 4478 : UnaExp(loc, TOKmixin, sizeof(FileExp), e) | |
| 4479 { | |
| 4480 } | |
| 4481 | |
| 4482 Expression *FileExp::semantic(Scope *sc) | |
| 4483 { char *name; | |
| 4484 StringExp *se; | |
| 4485 | |
| 4486 #if LOGSEMANTIC | |
| 4487 printf("FileExp::semantic('%s')\n", toChars()); | |
| 4488 #endif | |
| 4489 UnaExp::semantic(sc); | |
| 4490 e1 = resolveProperties(sc, e1); | |
| 4491 e1 = e1->optimize(WANTvalue); | |
| 4492 if (e1->op != TOKstring) | |
| 4493 { error("file name argument must be a string, not (%s)", e1->toChars()); | |
| 4494 goto Lerror; | |
| 4495 } | |
| 4496 se = (StringExp *)e1; | |
| 4497 se = se->toUTF8(sc); | |
| 4498 name = (char *)se->string; | |
| 4499 | |
| 4500 if (!global.params.fileImppath) | |
| 4501 { error("need -Jpath switch to import text file %s", name); | |
| 4502 goto Lerror; | |
| 4503 } | |
| 4504 | |
| 4505 if (name != FileName::name(name)) | |
| 4506 { error("use -Jpath switch to provide path for filename %s", name); | |
| 4507 goto Lerror; | |
| 4508 } | |
| 4509 | |
| 4510 name = FileName::searchPath(global.filePath, name, 0); | |
| 4511 if (!name) | |
| 4512 { error("file %s cannot be found, check -Jpath", se->toChars()); | |
| 4513 goto Lerror; | |
| 4514 } | |
| 4515 | |
| 4516 if (global.params.verbose) | |
| 4517 printf("file %s\t(%s)\n", se->string, name); | |
| 4518 | |
| 4519 { File f(name); | |
| 4520 if (f.read()) | |
| 4521 { error("cannot read file %s", f.toChars()); | |
| 4522 goto Lerror; | |
| 4523 } | |
| 4524 else | |
| 4525 { | |
| 4526 f.ref = 1; | |
| 4527 se = new StringExp(loc, f.buffer, f.len); | |
| 4528 } | |
| 4529 } | |
| 4530 Lret: | |
| 4531 return se->semantic(sc); | |
| 4532 | |
| 4533 Lerror: | |
| 4534 se = new StringExp(loc, ""); | |
| 4535 goto Lret; | |
| 4536 } | |
| 4537 | |
| 4538 void FileExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4539 { | |
| 4540 buf->writestring("import("); | |
| 4541 expToCBuffer(buf, hgs, e1, PREC_assign); | |
| 4542 buf->writeByte(')'); | |
| 4543 } | |
| 4544 | |
| 4545 /************************************************************/ | |
| 4546 | |
| 4547 AssertExp::AssertExp(Loc loc, Expression *e, Expression *msg) | |
| 4548 : UnaExp(loc, TOKassert, sizeof(AssertExp), e) | |
| 4549 { | |
| 4550 this->msg = msg; | |
| 4551 } | |
| 4552 | |
| 4553 Expression *AssertExp::syntaxCopy() | |
| 4554 { | |
| 4555 AssertExp *ae = new AssertExp(loc, e1->syntaxCopy(), | |
| 4556 msg ? msg->syntaxCopy() : NULL); | |
| 4557 return ae; | |
| 4558 } | |
| 4559 | |
| 4560 Expression *AssertExp::semantic(Scope *sc) | |
| 4561 { | |
| 4562 #if LOGSEMANTIC | |
| 4563 printf("AssertExp::semantic('%s')\n", toChars()); | |
| 4564 #endif | |
| 4565 UnaExp::semantic(sc); | |
| 4566 e1 = resolveProperties(sc, e1); | |
| 4567 // BUG: see if we can do compile time elimination of the Assert | |
| 4568 e1 = e1->optimize(WANTvalue); | |
| 4569 e1 = e1->checkToBoolean(); | |
| 4570 if (msg) | |
| 4571 { | |
| 4572 msg = msg->semantic(sc); | |
| 4573 msg = resolveProperties(sc, msg); | |
| 4574 msg = msg->implicitCastTo(sc, Type::tchar->arrayOf()); | |
| 4575 msg = msg->optimize(WANTvalue); | |
| 4576 } | |
| 4577 if (e1->isBool(FALSE)) | |
| 4578 { | |
| 4579 FuncDeclaration *fd = sc->parent->isFuncDeclaration(); | |
| 4580 fd->hasReturnExp |= 4; | |
| 4581 | |
| 4582 if (!global.params.useAssert) | |
| 4583 { Expression *e = new HaltExp(loc); | |
| 4584 e = e->semantic(sc); | |
| 4585 return e; | |
| 4586 } | |
| 4587 } | |
| 4588 type = Type::tvoid; | |
| 4589 return this; | |
| 4590 } | |
| 4591 | |
| 4592 int AssertExp::checkSideEffect(int flag) | |
| 4593 { | |
| 4594 return 1; | |
| 4595 } | |
| 4596 | |
| 4597 void AssertExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4598 { | |
| 4599 buf->writestring("assert("); | |
| 4600 expToCBuffer(buf, hgs, e1, PREC_assign); | |
| 4601 if (msg) | |
| 4602 { | |
| 4603 buf->writeByte(','); | |
| 4604 expToCBuffer(buf, hgs, msg, PREC_assign); | |
| 4605 } | |
| 4606 buf->writeByte(')'); | |
| 4607 } | |
| 4608 | |
| 4609 /************************************************************/ | |
| 4610 | |
| 4611 DotIdExp::DotIdExp(Loc loc, Expression *e, Identifier *ident) | |
| 4612 : UnaExp(loc, TOKdot, sizeof(DotIdExp), e) | |
| 4613 { | |
| 4614 this->ident = ident; | |
| 4615 } | |
| 4616 | |
| 4617 Expression *DotIdExp::semantic(Scope *sc) | |
| 4618 { Expression *e; | |
| 4619 Expression *eleft; | |
| 4620 Expression *eright; | |
| 4621 | |
| 4622 #if LOGSEMANTIC | |
| 4623 printf("DotIdExp::semantic(this = %p, '%s')\n", this, toChars()); | |
| 4624 //printf("e1->op = %d, '%s'\n", e1->op, Token::toChars(e1->op)); | |
| 4625 #endif | |
| 4626 | |
| 4627 //{ static int z; fflush(stdout); if (++z == 10) *(char*)0=0; } | |
| 4628 | |
| 4629 #if 0 | |
| 4630 /* Don't do semantic analysis if we'll be converting | |
| 4631 * it to a string. | |
| 4632 */ | |
| 4633 if (ident == Id::stringof) | |
| 4634 { char *s = e1->toChars(); | |
| 4635 e = new StringExp(loc, s, strlen(s), 'c'); | |
| 4636 e = e->semantic(sc); | |
| 4637 return e; | |
| 4638 } | |
| 4639 #endif | |
| 4640 | |
| 4641 /* Special case: rewrite this.id and super.id | |
| 4642 * to be classtype.id and baseclasstype.id | |
| 4643 * if we have no this pointer. | |
| 4644 */ | |
| 4645 if ((e1->op == TOKthis || e1->op == TOKsuper) && !hasThis(sc)) | |
| 4646 { ClassDeclaration *cd; | |
| 4647 StructDeclaration *sd; | |
| 4648 AggregateDeclaration *ad; | |
| 4649 | |
| 4650 ad = sc->getStructClassScope(); | |
| 4651 if (ad) | |
| 4652 { | |
| 4653 cd = ad->isClassDeclaration(); | |
| 4654 if (cd) | |
| 4655 { | |
| 4656 if (e1->op == TOKthis) | |
| 4657 { | |
| 4658 e = new TypeDotIdExp(loc, cd->type, ident); | |
| 4659 return e->semantic(sc); | |
| 4660 } | |
| 4661 else if (cd->baseClass && e1->op == TOKsuper) | |
| 4662 { | |
| 4663 e = new TypeDotIdExp(loc, cd->baseClass->type, ident); | |
| 4664 return e->semantic(sc); | |
| 4665 } | |
| 4666 } | |
| 4667 else | |
| 4668 { | |
| 4669 sd = ad->isStructDeclaration(); | |
| 4670 if (sd) | |
| 4671 { | |
| 4672 if (e1->op == TOKthis) | |
| 4673 { | |
| 4674 e = new TypeDotIdExp(loc, sd->type, ident); | |
| 4675 return e->semantic(sc); | |
| 4676 } | |
| 4677 } | |
| 4678 } | |
| 4679 } | |
| 4680 } | |
| 4681 | |
| 4682 UnaExp::semantic(sc); | |
| 4683 | |
| 4684 if (e1->op == TOKdotexp) | |
| 4685 { | |
| 4686 DotExp *de = (DotExp *)e1; | |
| 4687 eleft = de->e1; | |
| 4688 eright = de->e2; | |
| 4689 } | |
| 4690 else | |
| 4691 { | |
| 4692 e1 = resolveProperties(sc, e1); | |
| 4693 eleft = NULL; | |
| 4694 eright = e1; | |
| 4695 } | |
| 4696 | |
| 4697 if (e1->op == TOKtuple && ident == Id::length) | |
| 4698 { | |
| 4699 TupleExp *te = (TupleExp *)e1; | |
| 4700 e = new IntegerExp(loc, te->exps->dim, Type::tsize_t); | |
| 4701 return e; | |
| 4702 } | |
| 4703 | |
| 4704 if (eright->op == TOKimport) // also used for template alias's | |
| 4705 { | |
| 4706 Dsymbol *s; | |
| 4707 ScopeExp *ie = (ScopeExp *)eright; | |
| 4708 | |
| 4709 s = ie->sds->search(loc, ident, 0); | |
| 4710 if (s) | |
| 4711 { | |
| 4712 s = s->toAlias(); | |
| 4713 checkDeprecated(sc, s); | |
| 4714 | |
| 4715 EnumMember *em = s->isEnumMember(); | |
| 4716 if (em) | |
| 4717 { | |
| 4718 e = em->value; | |
| 4719 e = e->semantic(sc); | |
| 4720 return e; | |
| 4721 } | |
| 4722 | |
| 4723 VarDeclaration *v = s->isVarDeclaration(); | |
| 4724 if (v) | |
| 4725 { | |
| 4726 //printf("DotIdExp:: Identifier '%s' is a variable, type '%s'\n", toChars(), v->type->toChars()); | |
| 4727 if (v->inuse) | |
| 4728 { | |
| 4729 error("circular reference to '%s'", v->toChars()); | |
| 4730 type = Type::tint32; | |
| 4731 return this; | |
| 4732 } | |
| 4733 type = v->type; | |
| 4734 if (v->isConst()) | |
| 4735 { | |
| 4736 if (v->init) | |
| 4737 { | |
| 4738 ExpInitializer *ei = v->init->isExpInitializer(); | |
| 4739 if (ei) | |
| 4740 { | |
| 4741 //printf("\tei: %p (%s)\n", ei->exp, ei->exp->toChars()); | |
| 4742 //ei->exp = ei->exp->semantic(sc); | |
| 4743 if (ei->exp->type == type) | |
| 4744 { | |
| 4745 e = ei->exp->copy(); // make copy so we can change loc | |
| 4746 e->loc = loc; | |
| 4747 return e; | |
| 4748 } | |
| 4749 } | |
| 4750 } | |
| 4751 else if (type->isscalar()) | |
| 4752 { | |
| 4753 e = type->defaultInit(); | |
| 4754 e->loc = loc; | |
| 4755 return e; | |
| 4756 } | |
| 4757 } | |
| 4758 if (v->needThis()) | |
| 4759 { | |
| 4760 if (!eleft) | |
| 4761 eleft = new ThisExp(loc); | |
| 4762 e = new DotVarExp(loc, eleft, v); | |
| 4763 e = e->semantic(sc); | |
| 4764 } | |
| 4765 else | |
| 4766 { | |
| 4767 e = new VarExp(loc, v); | |
| 4768 if (eleft) | |
| 4769 { e = new CommaExp(loc, eleft, e); | |
| 4770 e->type = v->type; | |
| 4771 } | |
| 4772 } | |
| 4773 return e->deref(); | |
| 4774 } | |
| 4775 | |
| 4776 FuncDeclaration *f = s->isFuncDeclaration(); | |
| 4777 if (f) | |
| 4778 { | |
| 4779 //printf("it's a function\n"); | |
| 4780 if (f->needThis()) | |
| 4781 { | |
| 4782 if (!eleft) | |
| 4783 eleft = new ThisExp(loc); | |
| 4784 e = new DotVarExp(loc, eleft, f); | |
| 4785 e = e->semantic(sc); | |
| 4786 } | |
| 4787 else | |
| 4788 { | |
| 4789 e = new VarExp(loc, f); | |
| 4790 if (eleft) | |
| 4791 { e = new CommaExp(loc, eleft, e); | |
| 4792 e->type = f->type; | |
| 4793 } | |
| 4794 } | |
| 4795 return e; | |
| 4796 } | |
| 4797 | |
| 4798 Type *t = s->getType(); | |
| 4799 if (t) | |
| 4800 { | |
| 4801 return new TypeExp(loc, t); | |
| 4802 } | |
| 4803 | |
| 4804 ScopeDsymbol *sds = s->isScopeDsymbol(); | |
| 4805 if (sds) | |
| 4806 { | |
| 4807 //printf("it's a ScopeDsymbol\n"); | |
| 4808 e = new ScopeExp(loc, sds); | |
| 4809 e = e->semantic(sc); | |
| 4810 if (eleft) | |
| 4811 e = new DotExp(loc, eleft, e); | |
| 4812 return e; | |
| 4813 } | |
| 4814 | |
| 4815 Import *imp = s->isImport(); | |
| 4816 if (imp) | |
| 4817 { | |
| 4818 ScopeExp *ie; | |
| 4819 | |
| 4820 ie = new ScopeExp(loc, imp->pkg); | |
| 4821 return ie->semantic(sc); | |
| 4822 } | |
| 4823 | |
| 4824 // BUG: handle other cases like in IdentifierExp::semantic() | |
| 4825 #ifdef DEBUG | |
| 4826 printf("s = '%s', kind = '%s'\n", s->toChars(), s->kind()); | |
| 4827 #endif | |
| 4828 assert(0); | |
| 4829 } | |
| 4830 else if (ident == Id::stringof) | |
| 4831 { char *s = ie->toChars(); | |
| 4832 e = new StringExp(loc, s, strlen(s), 'c'); | |
| 4833 e = e->semantic(sc); | |
| 4834 return e; | |
| 4835 } | |
| 4836 error("undefined identifier %s", toChars()); | |
| 4837 type = Type::tvoid; | |
| 4838 return this; | |
| 4839 } | |
| 4840 else if (e1->type->ty == Tpointer && | |
| 4841 ident != Id::init && ident != Id::__sizeof && | |
| 4842 ident != Id::alignof && ident != Id::offsetof && | |
| 4843 ident != Id::mangleof && ident != Id::stringof) | |
| 4844 { | |
| 4845 e = new PtrExp(loc, e1); | |
| 4846 e->type = e1->type->next; | |
| 4847 return e->type->dotExp(sc, e, ident); | |
| 4848 } | |
| 4849 else | |
| 4850 { | |
| 4851 e = e1->type->dotExp(sc, e1, ident); | |
| 4852 e = e->semantic(sc); | |
| 4853 return e; | |
| 4854 } | |
| 4855 } | |
| 4856 | |
| 4857 void DotIdExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4858 { | |
| 4859 //printf("DotIdExp::toCBuffer()\n"); | |
| 4860 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 4861 buf->writeByte('.'); | |
| 4862 buf->writestring(ident->toChars()); | |
| 4863 } | |
| 4864 | |
| 4865 /********************** DotTemplateExp ***********************************/ | |
| 4866 | |
| 4867 // Mainly just a placeholder | |
| 4868 | |
| 4869 DotTemplateExp::DotTemplateExp(Loc loc, Expression *e, TemplateDeclaration *td) | |
| 4870 : UnaExp(loc, TOKdottd, sizeof(DotTemplateExp), e) | |
| 4871 | |
| 4872 { | |
| 4873 this->td = td; | |
| 4874 } | |
| 4875 | |
| 4876 void DotTemplateExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4877 { | |
| 4878 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 4879 buf->writeByte('.'); | |
| 4880 buf->writestring(td->toChars()); | |
| 4881 } | |
| 4882 | |
| 4883 | |
| 4884 /************************************************************/ | |
| 4885 | |
| 4886 DotVarExp::DotVarExp(Loc loc, Expression *e, Declaration *v) | |
| 4887 : UnaExp(loc, TOKdotvar, sizeof(DotVarExp), e) | |
| 4888 { | |
| 4889 //printf("DotVarExp()\n"); | |
| 4890 this->var = v; | |
| 4891 } | |
| 4892 | |
| 4893 Expression *DotVarExp::semantic(Scope *sc) | |
| 4894 { | |
| 4895 #if LOGSEMANTIC | |
| 4896 printf("DotVarExp::semantic('%s')\n", toChars()); | |
| 4897 #endif | |
| 4898 if (!type) | |
| 4899 { | |
| 4900 var = var->toAlias()->isDeclaration(); | |
| 4901 | |
| 4902 TupleDeclaration *tup = var->isTupleDeclaration(); | |
| 4903 if (tup) | |
| 4904 { /* Replace: | |
| 4905 * e1.tuple(a, b, c) | |
| 4906 * with: | |
| 4907 * tuple(e1.a, e1.b, e1.c) | |
| 4908 */ | |
| 4909 Expressions *exps = new Expressions; | |
| 4910 | |
| 4911 exps->reserve(tup->objects->dim); | |
| 4912 for (size_t i = 0; i < tup->objects->dim; i++) | |
| 4913 { Object *o = (Object *)tup->objects->data[i]; | |
| 4914 if (o->dyncast() != DYNCAST_EXPRESSION) | |
| 4915 { | |
| 4916 error("%s is not an expression", o->toChars()); | |
| 4917 } | |
| 4918 else | |
| 4919 { | |
| 4920 Expression *e = (Expression *)o; | |
| 4921 if (e->op != TOKdsymbol) | |
| 4922 error("%s is not a member", e->toChars()); | |
| 4923 else | |
| 4924 { DsymbolExp *ve = (DsymbolExp *)e; | |
| 4925 | |
| 4926 e = new DotVarExp(loc, e1, ve->s->isDeclaration()); | |
| 4927 exps->push(e); | |
| 4928 } | |
| 4929 } | |
| 4930 } | |
| 4931 Expression *e = new TupleExp(loc, exps); | |
| 4932 e = e->semantic(sc); | |
| 4933 return e; | |
| 4934 } | |
| 4935 | |
| 4936 e1 = e1->semantic(sc); | |
| 4937 type = var->type; | |
| 4938 if (!type && global.errors) | |
| 4939 { // var is goofed up, just return 0 | |
| 4940 return new IntegerExp(0); | |
| 4941 } | |
| 4942 assert(type); | |
| 4943 | |
| 4944 if (!var->isFuncDeclaration()) // for functions, do checks after overload resolution | |
| 4945 { | |
| 4946 AggregateDeclaration *ad = var->toParent()->isAggregateDeclaration(); | |
| 4947 L1: | |
|
35
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
4948 Type *t = e1->type->toBasetype(); |
| 1 | 4949 |
| 4950 if (ad && | |
| 4951 !(t->ty == Tpointer && t->next->ty == Tstruct && | |
| 4952 ((TypeStruct *)t->next)->sym == ad) | |
| 4953 && | |
| 4954 !(t->ty == Tstruct && | |
| 4955 ((TypeStruct *)t)->sym == ad) | |
| 4956 ) | |
| 4957 { | |
| 4958 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 4959 ClassDeclaration *tcd = t->isClassHandle(); | |
| 4960 | |
| 4961 if (!cd || !tcd || | |
| 4962 !(tcd == cd || cd->isBaseOf(tcd, NULL)) | |
| 4963 ) | |
| 4964 { | |
| 4965 if (tcd && tcd->isNested()) | |
| 4966 { // Try again with outer scope | |
| 4967 | |
| 4968 e1 = new DotVarExp(loc, e1, tcd->vthis); | |
| 4969 e1 = e1->semantic(sc); | |
| 4970 | |
| 4971 // Skip over nested functions, and get the enclosing | |
| 4972 // class type. | |
| 4973 Dsymbol *s = tcd->toParent(); | |
| 4974 while (s && s->isFuncDeclaration()) | |
| 4975 { FuncDeclaration *f = s->isFuncDeclaration(); | |
| 4976 if (f->vthis) | |
| 4977 { | |
| 4978 e1 = new VarExp(loc, f->vthis); | |
| 4979 } | |
| 4980 s = s->toParent(); | |
| 4981 } | |
| 4982 if (s && s->isClassDeclaration()) | |
| 4983 e1->type = s->isClassDeclaration()->type; | |
| 4984 | |
| 4985 goto L1; | |
| 4986 } | |
| 4987 #ifdef DEBUG | |
| 4988 printf("2: "); | |
| 4989 #endif | |
| 4990 error("this for %s needs to be type %s not type %s", | |
| 4991 var->toChars(), ad->toChars(), t->toChars()); | |
| 4992 } | |
| 4993 } | |
| 4994 accessCheck(loc, sc, e1, var); | |
| 4995 } | |
| 4996 } | |
| 4997 //printf("-DotVarExp::semantic('%s')\n", toChars()); | |
| 4998 return this; | |
| 4999 } | |
| 5000 | |
| 5001 Expression *DotVarExp::toLvalue(Scope *sc, Expression *e) | |
| 5002 { | |
| 5003 //printf("DotVarExp::toLvalue(%s)\n", toChars()); | |
| 5004 return this; | |
| 5005 } | |
| 5006 | |
| 5007 Expression *DotVarExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 5008 { | |
| 5009 //printf("DotVarExp::modifiableLvalue(%s)\n", toChars()); | |
| 5010 | |
| 5011 if (var->isCtorinit()) | |
| 5012 { // It's only modifiable if inside the right constructor | |
| 5013 Dsymbol *s = sc->func; | |
| 5014 while (1) | |
| 5015 { | |
| 5016 FuncDeclaration *fd = NULL; | |
| 5017 if (s) | |
| 5018 fd = s->isFuncDeclaration(); | |
| 5019 if (fd && | |
| 5020 ((fd->isCtorDeclaration() && var->storage_class & STCfield) || | |
| 5021 (fd->isStaticCtorDeclaration() && !(var->storage_class & STCfield))) && | |
| 5022 fd->toParent() == var->toParent() && | |
| 5023 e1->op == TOKthis | |
| 5024 ) | |
| 5025 { | |
| 5026 VarDeclaration *v = var->isVarDeclaration(); | |
| 5027 assert(v); | |
| 5028 v->ctorinit = 1; | |
| 5029 //printf("setting ctorinit\n"); | |
| 5030 } | |
| 5031 else | |
| 5032 { | |
| 5033 if (s) | |
| 5034 { s = s->toParent2(); | |
| 5035 continue; | |
| 5036 } | |
| 5037 else | |
| 5038 { | |
| 5039 const char *p = var->isStatic() ? "static " : ""; | |
| 5040 error("can only initialize %sconst member %s inside %sconstructor", | |
| 5041 p, var->toChars(), p); | |
| 5042 } | |
| 5043 } | |
| 5044 break; | |
| 5045 } | |
| 5046 } | |
| 5047 return this; | |
| 5048 } | |
| 5049 | |
| 5050 void DotVarExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5051 { | |
| 5052 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 5053 buf->writeByte('.'); | |
| 5054 buf->writestring(var->toChars()); | |
| 5055 } | |
| 5056 | |
| 5057 /************************************************************/ | |
| 5058 | |
| 5059 /* Things like: | |
| 5060 * foo.bar!(args) | |
| 5061 */ | |
| 5062 | |
| 5063 DotTemplateInstanceExp::DotTemplateInstanceExp(Loc loc, Expression *e, TemplateInstance *ti) | |
| 5064 : UnaExp(loc, TOKdotti, sizeof(DotTemplateInstanceExp), e) | |
| 5065 { | |
| 5066 //printf("DotTemplateInstanceExp()\n"); | |
| 5067 this->ti = ti; | |
| 5068 } | |
| 5069 | |
| 5070 Expression *DotTemplateInstanceExp::syntaxCopy() | |
| 5071 { | |
| 5072 DotTemplateInstanceExp *de = new DotTemplateInstanceExp(loc, | |
| 5073 e1->syntaxCopy(), | |
| 5074 (TemplateInstance *)ti->syntaxCopy(NULL)); | |
| 5075 return de; | |
| 5076 } | |
| 5077 | |
| 5078 Expression *DotTemplateInstanceExp::semantic(Scope *sc) | |
| 5079 { Dsymbol *s; | |
| 5080 Dsymbol *s2; | |
| 5081 TemplateDeclaration *td; | |
| 5082 Expression *e; | |
| 5083 Identifier *id; | |
| 5084 Type *t1; | |
| 5085 Expression *eleft = NULL; | |
| 5086 Expression *eright; | |
| 5087 | |
| 5088 #if LOGSEMANTIC | |
| 5089 printf("DotTemplateInstanceExp::semantic('%s')\n", toChars()); | |
| 5090 #endif | |
| 5091 //e1->print(); | |
| 5092 //print(); | |
| 5093 e1 = e1->semantic(sc); | |
| 5094 t1 = e1->type; | |
| 5095 if (t1) | |
| 5096 t1 = t1->toBasetype(); | |
| 5097 //t1->print(); | |
| 5098 if (e1->op == TOKdotexp) | |
| 5099 { DotExp *de = (DotExp *)e1; | |
| 5100 eleft = de->e1; | |
| 5101 eright = de->e2; | |
| 5102 } | |
| 5103 else | |
| 5104 { eleft = NULL; | |
| 5105 eright = e1; | |
| 5106 } | |
| 5107 if (eright->op == TOKimport) | |
| 5108 { | |
| 5109 s = ((ScopeExp *)eright)->sds; | |
| 5110 } | |
| 5111 else if (e1->op == TOKtype) | |
| 5112 { | |
| 5113 s = t1->isClassHandle(); | |
| 5114 if (!s) | |
| 5115 { if (t1->ty == Tstruct) | |
| 5116 s = ((TypeStruct *)t1)->sym; | |
| 5117 else | |
| 5118 goto L1; | |
| 5119 } | |
| 5120 } | |
| 5121 else if (t1 && (t1->ty == Tstruct || t1->ty == Tclass)) | |
| 5122 { | |
| 5123 s = t1->toDsymbol(sc); | |
| 5124 eleft = e1; | |
| 5125 } | |
| 5126 else if (t1 && t1->ty == Tpointer) | |
| 5127 { | |
| 5128 t1 = t1->next->toBasetype(); | |
| 5129 if (t1->ty != Tstruct) | |
| 5130 goto L1; | |
| 5131 s = t1->toDsymbol(sc); | |
| 5132 eleft = e1; | |
| 5133 } | |
| 5134 else | |
| 5135 { | |
| 5136 L1: | |
| 5137 error("template %s is not a member of %s", ti->toChars(), e1->toChars()); | |
| 5138 goto Lerr; | |
| 5139 } | |
| 5140 | |
| 5141 assert(s); | |
| 5142 id = ti->name; | |
| 5143 s2 = s->search(loc, id, 0); | |
| 5144 if (!s2) | |
| 5145 { error("template identifier %s is not a member of %s %s", id->toChars(), s->kind(), s->ident->toChars()); | |
| 5146 goto Lerr; | |
| 5147 } | |
| 5148 s = s2; | |
| 5149 s->semantic(sc); | |
| 5150 s = s->toAlias(); | |
| 5151 td = s->isTemplateDeclaration(); | |
| 5152 if (!td) | |
| 5153 { | |
| 5154 error("%s is not a template", id->toChars()); | |
| 5155 goto Lerr; | |
| 5156 } | |
| 5157 if (global.errors) | |
| 5158 goto Lerr; | |
| 5159 | |
| 5160 ti->tempdecl = td; | |
| 5161 | |
| 5162 if (eleft) | |
| 5163 { Declaration *v; | |
| 5164 | |
| 5165 ti->semantic(sc); | |
| 5166 s = ti->inst->toAlias(); | |
| 5167 v = s->isDeclaration(); | |
| 5168 if (v) | |
| 5169 { e = new DotVarExp(loc, eleft, v); | |
| 5170 e = e->semantic(sc); | |
| 5171 return e; | |
| 5172 } | |
| 5173 } | |
| 5174 | |
| 5175 e = new ScopeExp(loc, ti); | |
| 5176 if (eleft) | |
| 5177 { | |
| 5178 e = new DotExp(loc, eleft, e); | |
| 5179 } | |
| 5180 e = e->semantic(sc); | |
| 5181 return e; | |
| 5182 | |
| 5183 Lerr: | |
| 5184 return new IntegerExp(0); | |
| 5185 } | |
| 5186 | |
| 5187 void DotTemplateInstanceExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5188 { | |
| 5189 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 5190 buf->writeByte('.'); | |
| 5191 ti->toCBuffer(buf, hgs); | |
| 5192 } | |
| 5193 | |
| 5194 /************************************************************/ | |
| 5195 | |
| 5196 DelegateExp::DelegateExp(Loc loc, Expression *e, FuncDeclaration *f) | |
| 5197 : UnaExp(loc, TOKdelegate, sizeof(DelegateExp), e) | |
| 5198 { | |
| 5199 this->func = f; | |
| 5200 } | |
| 5201 | |
| 5202 Expression *DelegateExp::semantic(Scope *sc) | |
| 5203 { | |
| 5204 #if LOGSEMANTIC | |
| 5205 printf("DelegateExp::semantic('%s')\n", toChars()); | |
| 5206 #endif | |
| 5207 if (!type) | |
| 5208 { | |
| 5209 e1 = e1->semantic(sc); | |
| 5210 type = new TypeDelegate(func->type); | |
| 5211 type = type->semantic(loc, sc); | |
| 5212 //----------------- | |
| 5213 /* For func, we need to get the | |
| 5214 * right 'this' pointer if func is in an outer class, but our | |
| 5215 * existing 'this' pointer is in an inner class. | |
| 5216 * This code is analogous to that used for variables | |
| 5217 * in DotVarExp::semantic(). | |
| 5218 */ | |
| 5219 AggregateDeclaration *ad = func->toParent()->isAggregateDeclaration(); | |
| 5220 L10: | |
| 5221 Type *t = e1->type; | |
| 5222 if (func->needThis() && ad && | |
| 5223 !(t->ty == Tpointer && t->next->ty == Tstruct && | |
| 5224 ((TypeStruct *)t->next)->sym == ad) && | |
| 5225 !(t->ty == Tstruct && ((TypeStruct *)t)->sym == ad) | |
| 5226 ) | |
| 5227 { | |
| 5228 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 5229 ClassDeclaration *tcd = t->isClassHandle(); | |
| 5230 | |
| 5231 if (!cd || !tcd || | |
| 5232 !(tcd == cd || cd->isBaseOf(tcd, NULL)) | |
| 5233 ) | |
| 5234 { | |
| 5235 if (tcd && tcd->isNested()) | |
| 5236 { // Try again with outer scope | |
| 5237 | |
| 5238 e1 = new DotVarExp(loc, e1, tcd->vthis); | |
| 5239 e1 = e1->semantic(sc); | |
| 5240 goto L10; | |
| 5241 } | |
| 5242 #ifdef DEBUG | |
| 5243 printf("3: "); | |
| 5244 #endif | |
| 5245 error("this for %s needs to be type %s not type %s", | |
| 5246 func->toChars(), ad->toChars(), t->toChars()); | |
| 5247 } | |
| 5248 } | |
| 5249 //----------------- | |
| 5250 } | |
| 5251 return this; | |
| 5252 } | |
| 5253 | |
| 5254 void DelegateExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5255 { | |
| 5256 buf->writeByte('&'); | |
| 5257 if (!func->isNested()) | |
| 5258 { | |
| 5259 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 5260 buf->writeByte('.'); | |
| 5261 } | |
| 5262 buf->writestring(func->toChars()); | |
| 5263 } | |
| 5264 | |
| 5265 /************************************************************/ | |
| 5266 | |
| 5267 DotTypeExp::DotTypeExp(Loc loc, Expression *e, Dsymbol *s) | |
| 5268 : UnaExp(loc, TOKdottype, sizeof(DotTypeExp), e) | |
| 5269 { | |
| 5270 this->sym = s; | |
| 5271 this->type = s->getType(); | |
| 5272 } | |
| 5273 | |
| 5274 Expression *DotTypeExp::semantic(Scope *sc) | |
| 5275 { | |
| 5276 #if LOGSEMANTIC | |
| 5277 printf("DotTypeExp::semantic('%s')\n", toChars()); | |
| 5278 #endif | |
| 5279 UnaExp::semantic(sc); | |
| 5280 return this; | |
| 5281 } | |
| 5282 | |
| 5283 void DotTypeExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5284 { | |
| 5285 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 5286 buf->writeByte('.'); | |
| 5287 buf->writestring(sym->toChars()); | |
| 5288 } | |
| 5289 | |
| 5290 /************************************************************/ | |
| 5291 | |
| 5292 CallExp::CallExp(Loc loc, Expression *e, Expressions *exps) | |
| 5293 : UnaExp(loc, TOKcall, sizeof(CallExp), e) | |
| 5294 { | |
| 5295 this->arguments = exps; | |
| 5296 } | |
| 5297 | |
| 5298 CallExp::CallExp(Loc loc, Expression *e) | |
| 5299 : UnaExp(loc, TOKcall, sizeof(CallExp), e) | |
| 5300 { | |
| 5301 this->arguments = NULL; | |
| 5302 } | |
| 5303 | |
| 5304 CallExp::CallExp(Loc loc, Expression *e, Expression *earg1) | |
| 5305 : UnaExp(loc, TOKcall, sizeof(CallExp), e) | |
| 5306 { | |
| 5307 Expressions *arguments = new Expressions(); | |
| 5308 arguments->setDim(1); | |
| 5309 arguments->data[0] = (void *)earg1; | |
| 5310 | |
| 5311 this->arguments = arguments; | |
| 5312 } | |
| 5313 | |
| 5314 CallExp::CallExp(Loc loc, Expression *e, Expression *earg1, Expression *earg2) | |
| 5315 : UnaExp(loc, TOKcall, sizeof(CallExp), e) | |
| 5316 { | |
| 5317 Expressions *arguments = new Expressions(); | |
| 5318 arguments->setDim(2); | |
| 5319 arguments->data[0] = (void *)earg1; | |
| 5320 arguments->data[1] = (void *)earg2; | |
| 5321 | |
| 5322 this->arguments = arguments; | |
| 5323 } | |
| 5324 | |
| 5325 Expression *CallExp::syntaxCopy() | |
| 5326 { | |
| 5327 return new CallExp(loc, e1->syntaxCopy(), arraySyntaxCopy(arguments)); | |
| 5328 } | |
| 5329 | |
| 5330 | |
| 5331 Expression *CallExp::semantic(Scope *sc) | |
| 5332 { | |
| 5333 TypeFunction *tf; | |
| 5334 FuncDeclaration *f; | |
| 5335 int i; | |
| 5336 Type *t1; | |
| 5337 int istemp; | |
| 5338 | |
| 5339 #if LOGSEMANTIC | |
| 19 | 5340 printf("CallExp::semantic() %s\n", toChars()); |
| 1 | 5341 #endif |
| 5342 if (type) | |
| 5343 return this; // semantic() already run | |
| 5344 #if 0 | |
| 5345 if (arguments && arguments->dim) | |
| 5346 { | |
| 5347 Expression *earg = (Expression *)arguments->data[0]; | |
| 5348 earg->print(); | |
| 5349 if (earg->type) earg->type->print(); | |
| 5350 } | |
| 5351 #endif | |
| 5352 | |
| 5353 if (e1->op == TOKdelegate) | |
| 5354 { DelegateExp *de = (DelegateExp *)e1; | |
| 5355 | |
| 5356 e1 = new DotVarExp(de->loc, de->e1, de->func); | |
| 5357 return semantic(sc); | |
| 5358 } | |
| 5359 | |
| 5360 /* Transform: | |
| 5361 * array.id(args) into id(array,args) | |
| 5362 * aa.remove(arg) into delete aa[arg] | |
| 5363 */ | |
| 5364 if (e1->op == TOKdot) | |
| 5365 { | |
| 5366 // BUG: we should handle array.a.b.c.e(args) too | |
| 5367 | |
| 5368 DotIdExp *dotid = (DotIdExp *)(e1); | |
| 5369 dotid->e1 = dotid->e1->semantic(sc); | |
| 5370 assert(dotid->e1); | |
| 5371 if (dotid->e1->type) | |
| 5372 { | |
| 5373 TY e1ty = dotid->e1->type->toBasetype()->ty; | |
| 5374 if (e1ty == Taarray && dotid->ident == Id::remove) | |
| 5375 { | |
| 5376 if (!arguments || arguments->dim != 1) | |
| 5377 { error("expected key as argument to aa.remove()"); | |
| 5378 goto Lagain; | |
| 5379 } | |
| 5380 Expression *key = (Expression *)arguments->data[0]; | |
| 5381 key = key->semantic(sc); | |
| 5382 key = resolveProperties(sc, key); | |
| 5383 key->rvalue(); | |
| 5384 | |
| 5385 TypeAArray *taa = (TypeAArray *)dotid->e1->type->toBasetype(); | |
| 5386 key = key->implicitCastTo(sc, taa->index); | |
| 5387 key = key->implicitCastTo(sc, taa->key); | |
| 5388 | |
| 5389 return new RemoveExp(loc, dotid->e1, key); | |
| 5390 } | |
| 5391 else if (e1ty == Tarray || e1ty == Tsarray || e1ty == Taarray) | |
| 5392 { | |
| 5393 if (!arguments) | |
| 5394 arguments = new Expressions(); | |
| 5395 arguments->shift(dotid->e1); | |
| 5396 e1 = new IdentifierExp(dotid->loc, dotid->ident); | |
| 5397 } | |
| 5398 } | |
| 5399 } | |
| 5400 | |
| 5401 istemp = 0; | |
| 5402 Lagain: | |
| 5403 f = NULL; | |
| 5404 if (e1->op == TOKthis || e1->op == TOKsuper) | |
| 5405 { | |
| 5406 // semantic() run later for these | |
| 5407 } | |
| 5408 else | |
| 5409 { | |
| 5410 UnaExp::semantic(sc); | |
| 5411 | |
| 5412 /* Look for e1 being a lazy parameter | |
| 5413 */ | |
| 5414 if (e1->op == TOKvar) | |
| 5415 { VarExp *ve = (VarExp *)e1; | |
| 5416 | |
| 5417 if (ve->var->storage_class & STClazy) | |
| 5418 { | |
| 5419 TypeFunction *tf = new TypeFunction(NULL, ve->var->type, 0, LINKd); | |
| 5420 TypeDelegate *t = new TypeDelegate(tf); | |
| 5421 ve->type = t->semantic(loc, sc); | |
| 5422 } | |
| 5423 } | |
| 5424 | |
| 5425 if (e1->op == TOKimport) | |
| 5426 { // Perhaps this should be moved to ScopeExp::semantic() | |
| 5427 ScopeExp *se = (ScopeExp *)e1; | |
| 5428 e1 = new DsymbolExp(loc, se->sds); | |
| 5429 e1 = e1->semantic(sc); | |
| 5430 } | |
| 5431 #if 1 // patch for #540 by Oskar Linde | |
| 5432 else if (e1->op == TOKdotexp) | |
| 5433 { | |
| 5434 DotExp *de = (DotExp *) e1; | |
| 5435 | |
| 5436 if (de->e2->op == TOKimport) | |
| 5437 { // This should *really* be moved to ScopeExp::semantic() | |
| 5438 ScopeExp *se = (ScopeExp *)de->e2; | |
| 5439 de->e2 = new DsymbolExp(loc, se->sds); | |
| 5440 de->e2 = de->e2->semantic(sc); | |
| 5441 } | |
| 5442 | |
| 5443 if (de->e2->op == TOKtemplate) | |
| 5444 { TemplateExp *te = (TemplateExp *) de->e2; | |
| 5445 e1 = new DotTemplateExp(loc,de->e1,te->td); | |
| 5446 } | |
| 5447 } | |
| 5448 #endif | |
| 5449 } | |
| 5450 | |
| 5451 if (e1->op == TOKcomma) | |
| 5452 { | |
| 5453 CommaExp *ce = (CommaExp *)e1; | |
| 5454 | |
| 5455 e1 = ce->e2; | |
| 5456 e1->type = ce->type; | |
| 5457 ce->e2 = this; | |
| 5458 ce->type = NULL; | |
| 5459 return ce->semantic(sc); | |
| 5460 } | |
| 5461 | |
| 5462 t1 = NULL; | |
| 5463 if (e1->type) | |
| 5464 t1 = e1->type->toBasetype(); | |
| 5465 | |
| 5466 // Check for call operator overload | |
| 5467 if (t1) | |
| 5468 { AggregateDeclaration *ad; | |
| 5469 | |
| 5470 if (t1->ty == Tstruct) | |
| 5471 { | |
| 5472 ad = ((TypeStruct *)t1)->sym; | |
| 5473 if (search_function(ad, Id::call)) | |
| 5474 goto L1; // overload of opCall, therefore it's a call | |
| 19 | 5475 |
| 5476 if (e1->op != TOKtype) | |
| 5477 error("%s %s does not overload ()", ad->kind(), ad->toChars()); | |
| 1 | 5478 /* It's a struct literal |
| 5479 */ | |
| 5480 Expression *e = new StructLiteralExp(loc, (StructDeclaration *)ad, arguments); | |
| 5481 e = e->semantic(sc); | |
|
35
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
5482 e->type = e1->type; // in case e1->type was a typedef |
| 1 | 5483 return e; |
| 5484 } | |
| 5485 else if (t1->ty == Tclass) | |
| 5486 { | |
| 5487 ad = ((TypeClass *)t1)->sym; | |
| 5488 goto L1; | |
| 5489 L1: | |
| 5490 // Rewrite as e1.call(arguments) | |
| 5491 Expression *e = new DotIdExp(loc, e1, Id::call); | |
| 5492 e = new CallExp(loc, e, arguments); | |
| 5493 e = e->semantic(sc); | |
| 5494 return e; | |
| 5495 } | |
| 5496 } | |
| 5497 | |
| 5498 arrayExpressionSemantic(arguments, sc); | |
| 5499 preFunctionArguments(loc, sc, arguments); | |
| 5500 | |
| 5501 if (e1->op == TOKdotvar && t1->ty == Tfunction || | |
| 5502 e1->op == TOKdottd) | |
| 5503 { | |
| 5504 DotVarExp *dve; | |
| 5505 DotTemplateExp *dte; | |
| 5506 AggregateDeclaration *ad; | |
| 5507 UnaExp *ue = (UnaExp *)(e1); | |
| 5508 | |
| 5509 if (e1->op == TOKdotvar) | |
| 5510 { // Do overload resolution | |
| 5511 dve = (DotVarExp *)(e1); | |
| 5512 | |
| 5513 f = dve->var->isFuncDeclaration(); | |
| 5514 assert(f); | |
| 5515 f = f->overloadResolve(loc, arguments); | |
| 5516 | |
| 5517 ad = f->toParent()->isAggregateDeclaration(); | |
| 5518 } | |
| 5519 else | |
| 5520 { dte = (DotTemplateExp *)(e1); | |
| 5521 TemplateDeclaration *td = dte->td; | |
| 5522 assert(td); | |
| 5523 if (!arguments) | |
| 5524 // Should fix deduce() so it works on NULL argument | |
| 5525 arguments = new Expressions(); | |
| 5526 f = td->deduce(sc, loc, NULL, arguments); | |
| 5527 if (!f) | |
| 5528 { type = Type::terror; | |
| 5529 return this; | |
| 5530 } | |
| 5531 ad = td->toParent()->isAggregateDeclaration(); | |
| 5532 } | |
| 5533 /* Now that we have the right function f, we need to get the | |
| 5534 * right 'this' pointer if f is in an outer class, but our | |
| 5535 * existing 'this' pointer is in an inner class. | |
| 5536 * This code is analogous to that used for variables | |
| 5537 * in DotVarExp::semantic(). | |
| 5538 */ | |
| 5539 L10: | |
| 5540 Type *t = ue->e1->type->toBasetype(); | |
| 5541 if (f->needThis() && ad && | |
| 5542 !(t->ty == Tpointer && t->next->ty == Tstruct && | |
| 5543 ((TypeStruct *)t->next)->sym == ad) && | |
| 5544 !(t->ty == Tstruct && ((TypeStruct *)t)->sym == ad) | |
| 5545 ) | |
| 5546 { | |
| 5547 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 5548 ClassDeclaration *tcd = t->isClassHandle(); | |
| 5549 | |
| 5550 if (!cd || !tcd || | |
| 5551 !(tcd == cd || cd->isBaseOf(tcd, NULL)) | |
| 5552 ) | |
| 5553 { | |
| 5554 if (tcd && tcd->isNested()) | |
| 5555 { // Try again with outer scope | |
| 5556 | |
| 5557 ue->e1 = new DotVarExp(loc, ue->e1, tcd->vthis); | |
| 5558 ue->e1 = ue->e1->semantic(sc); | |
| 5559 goto L10; | |
| 5560 } | |
| 5561 #ifdef DEBUG | |
| 5562 printf("1: "); | |
| 5563 #endif | |
| 5564 error("this for %s needs to be type %s not type %s", | |
| 5565 f->toChars(), ad->toChars(), t->toChars()); | |
| 5566 } | |
| 5567 } | |
| 5568 | |
| 5569 checkDeprecated(sc, f); | |
| 5570 accessCheck(loc, sc, ue->e1, f); | |
| 5571 if (!f->needThis()) | |
| 5572 { | |
| 5573 VarExp *ve = new VarExp(loc, f); | |
| 5574 e1 = new CommaExp(loc, ue->e1, ve); | |
| 5575 e1->type = f->type; | |
| 5576 } | |
| 5577 else | |
| 5578 { | |
| 5579 if (e1->op == TOKdotvar) | |
| 5580 dve->var = f; | |
| 5581 else | |
| 5582 e1 = new DotVarExp(loc, dte->e1, f); | |
| 5583 e1->type = f->type; | |
| 5584 | |
| 5585 // See if we need to adjust the 'this' pointer | |
| 5586 AggregateDeclaration *ad = f->isThis(); | |
| 5587 ClassDeclaration *cd = ue->e1->type->isClassHandle(); | |
| 5588 if (ad && cd && ad->isClassDeclaration() && ad != cd && | |
| 5589 ue->e1->op != TOKsuper) | |
| 5590 { | |
| 5591 ue->e1 = ue->e1->castTo(sc, ad->type); //new CastExp(loc, ue->e1, ad->type); | |
| 5592 ue->e1 = ue->e1->semantic(sc); | |
| 5593 } | |
| 5594 } | |
| 5595 t1 = e1->type; | |
| 5596 } | |
| 5597 else if (e1->op == TOKsuper) | |
| 5598 { | |
| 5599 // Base class constructor call | |
| 5600 ClassDeclaration *cd = NULL; | |
| 5601 | |
| 5602 if (sc->func) | |
| 5603 cd = sc->func->toParent()->isClassDeclaration(); | |
| 5604 if (!cd || !cd->baseClass || !sc->func->isCtorDeclaration()) | |
| 5605 { | |
| 5606 error("super class constructor call must be in a constructor"); | |
| 5607 type = Type::terror; | |
| 5608 return this; | |
| 5609 } | |
| 5610 else | |
| 5611 { | |
| 5612 f = cd->baseClass->ctor; | |
| 5613 if (!f) | |
| 5614 { error("no super class constructor for %s", cd->baseClass->toChars()); | |
| 5615 type = Type::terror; | |
| 5616 return this; | |
| 5617 } | |
| 5618 else | |
| 5619 { | |
| 5620 #if 0 | |
| 5621 if (sc->callSuper & (CSXthis | CSXsuper)) | |
| 5622 error("reference to this before super()"); | |
| 5623 #endif | |
| 5624 if (sc->noctor || sc->callSuper & CSXlabel) | |
| 5625 error("constructor calls not allowed in loops or after labels"); | |
| 5626 if (sc->callSuper & (CSXsuper_ctor | CSXthis_ctor)) | |
| 5627 error("multiple constructor calls"); | |
| 5628 sc->callSuper |= CSXany_ctor | CSXsuper_ctor; | |
| 5629 | |
| 5630 f = f->overloadResolve(loc, arguments); | |
| 5631 checkDeprecated(sc, f); | |
| 5632 e1 = new DotVarExp(e1->loc, e1, f); | |
| 5633 e1 = e1->semantic(sc); | |
| 5634 t1 = e1->type; | |
| 5635 } | |
| 5636 } | |
| 5637 } | |
| 5638 else if (e1->op == TOKthis) | |
| 5639 { | |
| 5640 // same class constructor call | |
| 5641 ClassDeclaration *cd = NULL; | |
| 5642 | |
| 5643 if (sc->func) | |
| 5644 cd = sc->func->toParent()->isClassDeclaration(); | |
| 5645 if (!cd || !sc->func->isCtorDeclaration()) | |
| 5646 { | |
| 5647 error("class constructor call must be in a constructor"); | |
| 5648 type = Type::terror; | |
| 5649 return this; | |
| 5650 } | |
| 5651 else | |
| 5652 { | |
| 5653 #if 0 | |
| 5654 if (sc->callSuper & (CSXthis | CSXsuper)) | |
| 5655 error("reference to this before super()"); | |
| 5656 #endif | |
| 5657 if (sc->noctor || sc->callSuper & CSXlabel) | |
| 5658 error("constructor calls not allowed in loops or after labels"); | |
| 5659 if (sc->callSuper & (CSXsuper_ctor | CSXthis_ctor)) | |
| 5660 error("multiple constructor calls"); | |
| 5661 sc->callSuper |= CSXany_ctor | CSXthis_ctor; | |
| 5662 | |
| 5663 f = cd->ctor; | |
| 5664 f = f->overloadResolve(loc, arguments); | |
| 5665 checkDeprecated(sc, f); | |
| 5666 e1 = new DotVarExp(e1->loc, e1, f); | |
| 5667 e1 = e1->semantic(sc); | |
| 5668 t1 = e1->type; | |
| 5669 | |
| 5670 // BUG: this should really be done by checking the static | |
| 5671 // call graph | |
| 5672 if (f == sc->func) | |
| 5673 error("cyclic constructor call"); | |
| 5674 } | |
| 5675 } | |
| 5676 else if (!t1) | |
| 5677 { | |
| 5678 error("function expected before (), not '%s'", e1->toChars()); | |
| 5679 type = Type::terror; | |
| 5680 return this; | |
| 5681 } | |
| 5682 else if (t1->ty != Tfunction) | |
| 5683 { | |
| 5684 if (t1->ty == Tdelegate) | |
| 5685 { | |
| 5686 assert(t1->next->ty == Tfunction); | |
| 5687 tf = (TypeFunction *)(t1->next); | |
| 5688 goto Lcheckargs; | |
| 5689 } | |
| 5690 else if (t1->ty == Tpointer && t1->next->ty == Tfunction) | |
| 5691 { Expression *e; | |
| 5692 | |
| 5693 e = new PtrExp(loc, e1); | |
| 5694 t1 = t1->next; | |
| 5695 e->type = t1; | |
| 5696 e1 = e; | |
| 5697 } | |
| 5698 else if (e1->op == TOKtemplate) | |
| 5699 { | |
| 5700 TemplateExp *te = (TemplateExp *)e1; | |
| 5701 f = te->td->deduce(sc, loc, NULL, arguments); | |
| 5702 if (!f) | |
| 5703 { type = Type::terror; | |
| 5704 return this; | |
| 5705 } | |
| 5706 if (f->needThis() && hasThis(sc)) | |
| 5707 { | |
| 5708 // Supply an implicit 'this', as in | |
| 5709 // this.ident | |
| 5710 | |
| 5711 e1 = new DotTemplateExp(loc, (new ThisExp(loc))->semantic(sc), te->td); | |
| 5712 goto Lagain; | |
| 5713 } | |
| 5714 | |
| 5715 e1 = new VarExp(loc, f); | |
| 5716 goto Lagain; | |
| 5717 } | |
| 5718 else | |
| 5719 { error("function expected before (), not %s of type %s", e1->toChars(), e1->type->toChars()); | |
| 5720 type = Type::terror; | |
| 5721 return this; | |
| 5722 } | |
| 5723 } | |
| 5724 else if (e1->op == TOKvar) | |
| 5725 { | |
| 5726 // Do overload resolution | |
| 5727 VarExp *ve = (VarExp *)e1; | |
| 5728 | |
| 5729 f = ve->var->isFuncDeclaration(); | |
| 5730 assert(f); | |
| 5731 | |
| 5732 // Look to see if f is really a function template | |
| 5733 if (0 && !istemp && f->parent) | |
| 5734 { TemplateInstance *ti = f->parent->isTemplateInstance(); | |
| 5735 | |
| 5736 if (ti && | |
| 5737 (ti->name == f->ident || | |
| 5738 ti->toAlias()->ident == f->ident) | |
| 5739 && | |
| 5740 ti->tempdecl) | |
| 5741 { | |
| 5742 /* This is so that one can refer to the enclosing | |
| 5743 * template, even if it has the same name as a member | |
| 5744 * of the template, if it has a !(arguments) | |
| 5745 */ | |
| 5746 TemplateDeclaration *tempdecl = ti->tempdecl; | |
| 5747 if (tempdecl->overroot) // if not start of overloaded list of TemplateDeclaration's | |
| 5748 tempdecl = tempdecl->overroot; // then get the start | |
| 5749 e1 = new TemplateExp(loc, tempdecl); | |
| 5750 istemp = 1; | |
| 5751 goto Lagain; | |
| 5752 } | |
| 5753 } | |
| 5754 | |
| 5755 f = f->overloadResolve(loc, arguments); | |
| 5756 checkDeprecated(sc, f); | |
| 5757 | |
| 5758 if (f->needThis() && hasThis(sc)) | |
| 5759 { | |
| 5760 // Supply an implicit 'this', as in | |
| 5761 // this.ident | |
| 5762 | |
| 5763 e1 = new DotVarExp(loc, new ThisExp(loc), f); | |
| 5764 goto Lagain; | |
| 5765 } | |
| 5766 | |
| 5767 accessCheck(loc, sc, NULL, f); | |
| 5768 | |
| 5769 ve->var = f; | |
| 5770 ve->type = f->type; | |
| 5771 t1 = f->type; | |
| 5772 } | |
| 5773 assert(t1->ty == Tfunction); | |
| 5774 tf = (TypeFunction *)(t1); | |
| 5775 | |
| 5776 Lcheckargs: | |
| 5777 assert(tf->ty == Tfunction); | |
| 5778 type = tf->next; | |
| 5779 | |
| 5780 if (!arguments) | |
| 5781 arguments = new Expressions(); | |
| 5782 functionArguments(loc, sc, tf, arguments); | |
| 5783 | |
| 5784 assert(type); | |
| 5785 | |
| 5786 if (f && f->tintro) | |
| 5787 { | |
| 5788 Type *t = type; | |
| 5789 int offset = 0; | |
| 5790 | |
| 5791 if (f->tintro->next->isBaseOf(t, &offset) && offset) | |
| 5792 { | |
| 5793 type = f->tintro->next; | |
| 5794 return castTo(sc, t); | |
| 5795 } | |
| 5796 } | |
| 5797 | |
| 5798 return this; | |
| 5799 } | |
| 5800 | |
| 5801 int CallExp::checkSideEffect(int flag) | |
| 5802 { | |
| 5803 return 1; | |
| 5804 } | |
| 5805 | |
| 5806 Expression *CallExp::toLvalue(Scope *sc, Expression *e) | |
| 5807 { | |
| 5808 if (type->toBasetype()->ty == Tstruct) | |
| 5809 return this; | |
| 5810 else | |
| 5811 return Expression::toLvalue(sc, e); | |
| 5812 } | |
| 5813 | |
| 5814 void CallExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5815 { int i; | |
| 5816 | |
| 5817 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 5818 buf->writeByte('('); | |
| 5819 argsToCBuffer(buf, arguments, hgs); | |
| 5820 buf->writeByte(')'); | |
| 5821 } | |
| 5822 | |
| 5823 | |
| 5824 /************************************************************/ | |
| 5825 | |
| 5826 AddrExp::AddrExp(Loc loc, Expression *e) | |
| 5827 : UnaExp(loc, TOKaddress, sizeof(AddrExp), e) | |
| 5828 { | |
| 5829 } | |
| 5830 | |
| 5831 Expression *AddrExp::semantic(Scope *sc) | |
| 5832 { | |
| 5833 #if LOGSEMANTIC | |
| 5834 printf("AddrExp::semantic('%s')\n", toChars()); | |
| 5835 #endif | |
| 5836 if (!type) | |
| 5837 { | |
| 5838 UnaExp::semantic(sc); | |
| 5839 e1 = e1->toLvalue(sc, NULL); | |
| 5840 if (!e1->type) | |
| 5841 { | |
| 5842 error("cannot take address of %s", e1->toChars()); | |
| 5843 type = Type::tint32; | |
| 5844 return this; | |
| 5845 } | |
| 5846 type = e1->type->pointerTo(); | |
| 5847 | |
| 5848 // See if this should really be a delegate | |
| 5849 if (e1->op == TOKdotvar) | |
| 5850 { | |
| 5851 DotVarExp *dve = (DotVarExp *)e1; | |
| 5852 FuncDeclaration *f = dve->var->isFuncDeclaration(); | |
| 5853 | |
| 5854 if (f) | |
| 5855 { Expression *e; | |
| 5856 | |
| 5857 e = new DelegateExp(loc, dve->e1, f); | |
| 5858 e = e->semantic(sc); | |
| 5859 return e; | |
| 5860 } | |
| 5861 } | |
| 5862 else if (e1->op == TOKvar) | |
| 5863 { | |
| 5864 VarExp *dve = (VarExp *)e1; | |
| 5865 FuncDeclaration *f = dve->var->isFuncDeclaration(); | |
| 5866 | |
| 5867 if (f && f->isNested()) | |
| 5868 { Expression *e; | |
| 5869 | |
| 5870 e = new DelegateExp(loc, e1, f); | |
| 5871 e = e->semantic(sc); | |
| 5872 return e; | |
| 5873 } | |
| 5874 } | |
| 5875 else if (e1->op == TOKarray) | |
| 5876 { | |
| 5877 if (e1->type->toBasetype()->ty == Tbit) | |
| 5878 error("cannot take address of bit in array"); | |
| 5879 } | |
| 5880 return optimize(WANTvalue); | |
| 5881 } | |
| 5882 return this; | |
| 5883 } | |
| 5884 | |
| 5885 /************************************************************/ | |
| 5886 | |
| 5887 PtrExp::PtrExp(Loc loc, Expression *e) | |
| 5888 : UnaExp(loc, TOKstar, sizeof(PtrExp), e) | |
| 5889 { | |
| 5890 if (e->type) | |
| 5891 type = e->type->next; | |
| 5892 } | |
| 5893 | |
| 5894 PtrExp::PtrExp(Loc loc, Expression *e, Type *t) | |
| 5895 : UnaExp(loc, TOKstar, sizeof(PtrExp), e) | |
| 5896 { | |
| 5897 type = t; | |
| 5898 } | |
| 5899 | |
| 5900 Expression *PtrExp::semantic(Scope *sc) | |
| 5901 { Type *tb; | |
| 5902 | |
| 5903 #if LOGSEMANTIC | |
| 5904 printf("PtrExp::semantic('%s')\n", toChars()); | |
| 5905 #endif | |
| 5906 UnaExp::semantic(sc); | |
| 5907 e1 = resolveProperties(sc, e1); | |
| 5908 if (type) | |
| 5909 return this; | |
| 5910 if (!e1->type) | |
| 5911 printf("PtrExp::semantic('%s')\n", toChars()); | |
| 5912 tb = e1->type->toBasetype(); | |
| 5913 switch (tb->ty) | |
| 5914 { | |
| 5915 case Tpointer: | |
| 5916 type = tb->next; | |
| 5917 if (type->isbit()) | |
| 5918 { Expression *e; | |
| 5919 | |
| 5920 // Rewrite *p as p[0] | |
| 5921 e = new IndexExp(loc, e1, new IntegerExp(0)); | |
| 5922 return e->semantic(sc); | |
| 5923 } | |
| 5924 break; | |
| 5925 | |
| 5926 case Tsarray: | |
| 5927 case Tarray: | |
| 5928 type = tb->next; | |
| 5929 e1 = e1->castTo(sc, type->pointerTo()); | |
| 5930 break; | |
| 5931 | |
| 5932 default: | |
| 5933 error("can only * a pointer, not a '%s'", e1->type->toChars()); | |
| 5934 type = Type::tint32; | |
| 5935 break; | |
| 5936 } | |
| 5937 rvalue(); | |
| 5938 return this; | |
| 5939 } | |
| 5940 | |
| 5941 Expression *PtrExp::toLvalue(Scope *sc, Expression *e) | |
| 5942 { | |
| 5943 #if 0 | |
| 5944 tym = tybasic(e1->ET->Tty); | |
| 5945 if (!(tyscalar(tym) || | |
| 5946 tym == TYstruct || | |
| 5947 tym == TYarray && e->Eoper == TOKaddr)) | |
| 5948 synerr(EM_lvalue); // lvalue expected | |
| 5949 #endif | |
| 5950 return this; | |
| 5951 } | |
| 5952 | |
| 5953 void PtrExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5954 { | |
| 5955 buf->writeByte('*'); | |
| 5956 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 5957 } | |
| 5958 | |
| 5959 /************************************************************/ | |
| 5960 | |
| 5961 NegExp::NegExp(Loc loc, Expression *e) | |
| 5962 : UnaExp(loc, TOKneg, sizeof(NegExp), e) | |
| 5963 { | |
| 5964 } | |
| 5965 | |
| 5966 Expression *NegExp::semantic(Scope *sc) | |
| 5967 { Expression *e; | |
| 5968 | |
| 5969 #if LOGSEMANTIC | |
| 5970 printf("NegExp::semantic('%s')\n", toChars()); | |
| 5971 #endif | |
| 5972 if (!type) | |
| 5973 { | |
| 5974 UnaExp::semantic(sc); | |
| 5975 e1 = resolveProperties(sc, e1); | |
| 5976 e = op_overload(sc); | |
| 5977 if (e) | |
| 5978 return e; | |
| 5979 | |
| 5980 e1->checkNoBool(); | |
| 5981 e1->checkArithmetic(); | |
| 5982 type = e1->type; | |
| 5983 } | |
| 5984 return this; | |
| 5985 } | |
| 5986 | |
| 5987 /************************************************************/ | |
| 5988 | |
| 5989 UAddExp::UAddExp(Loc loc, Expression *e) | |
| 5990 : UnaExp(loc, TOKuadd, sizeof(UAddExp), e) | |
| 5991 { | |
| 5992 } | |
| 5993 | |
| 5994 Expression *UAddExp::semantic(Scope *sc) | |
| 5995 { Expression *e; | |
| 5996 | |
| 5997 #if LOGSEMANTIC | |
| 5998 printf("UAddExp::semantic('%s')\n", toChars()); | |
| 5999 #endif | |
| 6000 assert(!type); | |
| 6001 UnaExp::semantic(sc); | |
| 6002 e1 = resolveProperties(sc, e1); | |
| 6003 e = op_overload(sc); | |
| 6004 if (e) | |
| 6005 return e; | |
| 6006 e1->checkNoBool(); | |
| 6007 e1->checkArithmetic(); | |
| 6008 return e1; | |
| 6009 } | |
| 6010 | |
| 6011 /************************************************************/ | |
| 6012 | |
| 6013 ComExp::ComExp(Loc loc, Expression *e) | |
| 6014 : UnaExp(loc, TOKtilde, sizeof(ComExp), e) | |
| 6015 { | |
| 6016 } | |
| 6017 | |
| 6018 Expression *ComExp::semantic(Scope *sc) | |
| 6019 { Expression *e; | |
| 6020 | |
| 6021 if (!type) | |
| 6022 { | |
| 6023 UnaExp::semantic(sc); | |
| 6024 e1 = resolveProperties(sc, e1); | |
| 6025 e = op_overload(sc); | |
| 6026 if (e) | |
| 6027 return e; | |
| 6028 | |
| 6029 e1->checkNoBool(); | |
| 6030 e1 = e1->checkIntegral(); | |
| 6031 type = e1->type; | |
| 6032 } | |
| 6033 return this; | |
| 6034 } | |
| 6035 | |
| 6036 /************************************************************/ | |
| 6037 | |
| 6038 NotExp::NotExp(Loc loc, Expression *e) | |
| 6039 : UnaExp(loc, TOKnot, sizeof(NotExp), e) | |
| 6040 { | |
| 6041 } | |
| 6042 | |
| 6043 Expression *NotExp::semantic(Scope *sc) | |
| 6044 { | |
| 6045 UnaExp::semantic(sc); | |
| 6046 e1 = resolveProperties(sc, e1); | |
| 6047 e1 = e1->checkToBoolean(); | |
| 6048 type = Type::tboolean; | |
| 6049 return this; | |
| 6050 } | |
| 6051 | |
| 6052 int NotExp::isBit() | |
| 6053 { | |
| 6054 return TRUE; | |
| 6055 } | |
| 6056 | |
| 6057 | |
| 6058 | |
| 6059 /************************************************************/ | |
| 6060 | |
| 6061 BoolExp::BoolExp(Loc loc, Expression *e, Type *t) | |
| 6062 : UnaExp(loc, TOKtobool, sizeof(BoolExp), e) | |
| 6063 { | |
| 6064 type = t; | |
| 6065 } | |
| 6066 | |
| 6067 Expression *BoolExp::semantic(Scope *sc) | |
| 6068 { | |
| 6069 UnaExp::semantic(sc); | |
| 6070 e1 = resolveProperties(sc, e1); | |
| 6071 e1 = e1->checkToBoolean(); | |
| 6072 type = Type::tboolean; | |
| 6073 return this; | |
| 6074 } | |
| 6075 | |
| 6076 int BoolExp::isBit() | |
| 6077 { | |
| 6078 return TRUE; | |
| 6079 } | |
| 6080 | |
| 6081 /************************************************************/ | |
| 6082 | |
| 6083 DeleteExp::DeleteExp(Loc loc, Expression *e) | |
| 6084 : UnaExp(loc, TOKdelete, sizeof(DeleteExp), e) | |
| 6085 { | |
| 6086 } | |
| 6087 | |
| 6088 Expression *DeleteExp::semantic(Scope *sc) | |
| 6089 { | |
| 6090 Type *tb; | |
| 6091 | |
| 6092 UnaExp::semantic(sc); | |
| 6093 e1 = resolveProperties(sc, e1); | |
| 6094 e1 = e1->toLvalue(sc, NULL); | |
| 6095 type = Type::tvoid; | |
| 6096 | |
| 6097 tb = e1->type->toBasetype(); | |
| 6098 switch (tb->ty) | |
| 6099 { case Tclass: | |
| 6100 { TypeClass *tc = (TypeClass *)tb; | |
| 6101 ClassDeclaration *cd = tc->sym; | |
| 6102 | |
|
35
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
6103 if (cd->isCOMinterface()) |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
6104 { /* 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
|
6105 */ |
| 1 | 6106 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
|
6107 } |
| 1 | 6108 break; |
| 6109 } | |
| 6110 case Tpointer: | |
| 6111 tb = tb->next->toBasetype(); | |
| 6112 if (tb->ty == Tstruct) | |
| 6113 { | |
| 6114 TypeStruct *ts = (TypeStruct *)tb; | |
| 6115 StructDeclaration *sd = ts->sym; | |
| 6116 FuncDeclaration *f = sd->aggDelete; | |
| 6117 | |
| 6118 if (f) | |
| 6119 { | |
| 6120 Expression *e; | |
| 6121 Expression *ec; | |
| 6122 Type *tpv = Type::tvoid->pointerTo(); | |
| 6123 | |
| 6124 e = e1; | |
| 6125 e->type = tpv; | |
| 6126 ec = new VarExp(loc, f); | |
| 6127 e = new CallExp(loc, ec, e); | |
| 6128 return e->semantic(sc); | |
| 6129 } | |
| 6130 } | |
| 6131 break; | |
| 6132 | |
| 6133 case Tarray: | |
| 6134 break; | |
| 6135 | |
| 6136 default: | |
| 6137 if (e1->op == TOKindex) | |
| 6138 { | |
| 6139 IndexExp *ae = (IndexExp *)(e1); | |
| 6140 Type *tb1 = ae->e1->type->toBasetype(); | |
| 6141 if (tb1->ty == Taarray) | |
| 6142 break; | |
| 6143 } | |
| 6144 error("cannot delete type %s", e1->type->toChars()); | |
| 6145 break; | |
| 6146 } | |
| 6147 | |
| 6148 if (e1->op == TOKindex) | |
| 6149 { | |
| 6150 IndexExp *ae = (IndexExp *)(e1); | |
| 6151 Type *tb1 = ae->e1->type->toBasetype(); | |
| 6152 if (tb1->ty == Taarray) | |
| 6153 { if (!global.params.useDeprecated) | |
| 6154 error("delete aa[key] deprecated, use aa.remove(key)"); | |
| 6155 } | |
| 6156 } | |
| 6157 | |
| 6158 return this; | |
| 6159 } | |
| 6160 | |
| 6161 int DeleteExp::checkSideEffect(int flag) | |
| 6162 { | |
| 6163 return 1; | |
| 6164 } | |
| 6165 | |
| 6166 Expression *DeleteExp::checkToBoolean() | |
| 6167 { | |
| 6168 error("delete does not give a boolean result"); | |
| 6169 return this; | |
| 6170 } | |
| 6171 | |
| 6172 void DeleteExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6173 { | |
| 6174 buf->writestring("delete "); | |
| 6175 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 6176 } | |
| 6177 | |
| 6178 /************************************************************/ | |
| 6179 | |
| 6180 CastExp::CastExp(Loc loc, Expression *e, Type *t) | |
| 6181 : UnaExp(loc, TOKcast, sizeof(CastExp), e) | |
| 6182 { | |
| 6183 to = t; | |
| 6184 } | |
| 6185 | |
| 6186 Expression *CastExp::syntaxCopy() | |
| 6187 { | |
| 6188 return new CastExp(loc, e1->syntaxCopy(), to->syntaxCopy()); | |
| 6189 } | |
| 6190 | |
| 6191 | |
| 6192 Expression *CastExp::semantic(Scope *sc) | |
| 6193 { Expression *e; | |
| 6194 BinExp *b; | |
| 6195 UnaExp *u; | |
| 6196 | |
| 6197 #if LOGSEMANTIC | |
| 6198 printf("CastExp::semantic('%s')\n", toChars()); | |
| 6199 #endif | |
| 6200 | |
| 6201 //static int x; assert(++x < 10); | |
| 6202 | |
| 6203 if (type) | |
| 6204 return this; | |
| 6205 UnaExp::semantic(sc); | |
| 6206 if (e1->type) // if not a tuple | |
| 6207 { | |
| 6208 e1 = resolveProperties(sc, e1); | |
| 6209 to = to->semantic(loc, sc); | |
| 6210 | |
| 6211 e = op_overload(sc); | |
| 6212 if (e) | |
| 6213 { | |
| 6214 return e->implicitCastTo(sc, to); | |
| 6215 } | |
| 6216 | |
| 6217 Type *tob = to->toBasetype(); | |
| 6218 if (tob->ty == Tstruct && !tob->equals(e1->type->toBasetype())) | |
| 6219 { | |
| 6220 /* Look to replace: | |
| 6221 * cast(S)t | |
| 6222 * with: | |
| 6223 * S(t) | |
| 6224 */ | |
| 6225 | |
| 6226 // Rewrite as to.call(e1) | |
| 6227 e = new TypeExp(loc, to); | |
| 6228 e = new DotIdExp(loc, e, Id::call); | |
| 6229 e = new CallExp(loc, e, e1); | |
| 6230 e = e->semantic(sc); | |
| 6231 return e; | |
| 6232 } | |
| 6233 } | |
| 6234 e = e1->castTo(sc, to); | |
| 6235 return e; | |
| 6236 } | |
| 6237 | |
| 6238 int CastExp::checkSideEffect(int flag) | |
| 6239 { | |
| 6240 /* if not: | |
| 6241 * cast(void) | |
| 6242 * cast(classtype)func() | |
| 6243 */ | |
| 6244 if (!to->equals(Type::tvoid) && | |
| 6245 !(to->ty == Tclass && e1->op == TOKcall && e1->type->ty == Tclass)) | |
| 6246 return Expression::checkSideEffect(flag); | |
| 6247 return 1; | |
| 6248 } | |
| 6249 | |
| 6250 void CastExp::checkEscape() | |
| 6251 { Type *tb = type->toBasetype(); | |
| 6252 if (tb->ty == Tarray && e1->op == TOKvar && | |
| 6253 e1->type->toBasetype()->ty == Tsarray) | |
| 6254 { VarExp *ve = (VarExp *)e1; | |
| 6255 VarDeclaration *v = ve->var->isVarDeclaration(); | |
| 6256 if (v) | |
| 6257 { | |
| 6258 if (!v->isDataseg() && !v->isParameter()) | |
| 6259 error("escaping reference to local %s", v->toChars()); | |
| 6260 } | |
| 6261 } | |
| 6262 } | |
| 6263 | |
| 6264 void CastExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6265 { | |
| 6266 buf->writestring("cast("); | |
| 6267 to->toCBuffer(buf, NULL, hgs); | |
| 6268 buf->writeByte(')'); | |
| 6269 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 6270 } | |
| 6271 | |
| 6272 | |
| 6273 /************************************************************/ | |
| 6274 | |
| 6275 SliceExp::SliceExp(Loc loc, Expression *e1, Expression *lwr, Expression *upr) | |
| 6276 : UnaExp(loc, TOKslice, sizeof(SliceExp), e1) | |
| 6277 { | |
| 6278 this->upr = upr; | |
| 6279 this->lwr = lwr; | |
| 6280 lengthVar = NULL; | |
| 6281 } | |
| 6282 | |
| 6283 Expression *SliceExp::syntaxCopy() | |
| 6284 { | |
| 6285 Expression *lwr = NULL; | |
| 6286 if (this->lwr) | |
| 6287 lwr = this->lwr->syntaxCopy(); | |
| 6288 | |
| 6289 Expression *upr = NULL; | |
| 6290 if (this->upr) | |
| 6291 upr = this->upr->syntaxCopy(); | |
| 6292 | |
| 6293 return new SliceExp(loc, e1->syntaxCopy(), lwr, upr); | |
| 6294 } | |
| 6295 | |
| 6296 Expression *SliceExp::semantic(Scope *sc) | |
| 6297 { Expression *e; | |
| 6298 AggregateDeclaration *ad; | |
| 6299 //FuncDeclaration *fd; | |
| 6300 ScopeDsymbol *sym; | |
| 6301 | |
| 6302 #if LOGSEMANTIC | |
| 6303 printf("SliceExp::semantic('%s')\n", toChars()); | |
| 6304 #endif | |
| 6305 if (type) | |
| 6306 return this; | |
| 6307 | |
| 6308 UnaExp::semantic(sc); | |
| 6309 e1 = resolveProperties(sc, e1); | |
| 6310 | |
| 6311 e = this; | |
| 6312 | |
| 6313 Type *t = e1->type->toBasetype(); | |
| 6314 if (t->ty == Tpointer) | |
| 6315 { | |
| 6316 if (!lwr || !upr) | |
| 6317 error("need upper and lower bound to slice pointer"); | |
| 6318 } | |
| 6319 else if (t->ty == Tarray) | |
| 6320 { | |
| 6321 } | |
| 6322 else if (t->ty == Tsarray) | |
| 6323 { | |
| 6324 } | |
| 6325 else if (t->ty == Tclass) | |
| 6326 { | |
| 6327 ad = ((TypeClass *)t)->sym; | |
| 6328 goto L1; | |
| 6329 } | |
| 6330 else if (t->ty == Tstruct) | |
| 6331 { | |
| 6332 ad = ((TypeStruct *)t)->sym; | |
| 6333 | |
| 6334 L1: | |
| 6335 if (search_function(ad, Id::slice)) | |
| 6336 { | |
| 6337 // Rewrite as e1.slice(lwr, upr) | |
| 6338 e = new DotIdExp(loc, e1, Id::slice); | |
| 6339 | |
| 6340 if (lwr) | |
| 6341 { | |
| 6342 assert(upr); | |
| 6343 e = new CallExp(loc, e, lwr, upr); | |
| 6344 } | |
| 6345 else | |
| 6346 { assert(!upr); | |
| 6347 e = new CallExp(loc, e); | |
| 6348 } | |
| 6349 e = e->semantic(sc); | |
| 6350 return e; | |
| 6351 } | |
| 6352 goto Lerror; | |
| 6353 } | |
| 6354 else if (t->ty == Ttuple) | |
| 6355 { | |
| 6356 if (!lwr && !upr) | |
| 6357 return e1; | |
| 6358 if (!lwr || !upr) | |
| 6359 { error("need upper and lower bound to slice tuple"); | |
| 6360 goto Lerror; | |
| 6361 } | |
| 6362 } | |
| 6363 else | |
| 6364 goto Lerror; | |
| 6365 | |
| 6366 if (t->ty == Tsarray || t->ty == Tarray || t->ty == Ttuple) | |
| 6367 { | |
| 6368 sym = new ArrayScopeSymbol(this); | |
| 6369 sym->loc = loc; | |
| 6370 sym->parent = sc->scopesym; | |
| 6371 sc = sc->push(sym); | |
| 6372 } | |
| 6373 | |
| 6374 if (lwr) | |
| 6375 { lwr = lwr->semantic(sc); | |
| 6376 lwr = resolveProperties(sc, lwr); | |
| 6377 lwr = lwr->implicitCastTo(sc, Type::tsize_t); | |
| 6378 } | |
| 6379 if (upr) | |
| 6380 { upr = upr->semantic(sc); | |
| 6381 upr = resolveProperties(sc, upr); | |
| 6382 upr = upr->implicitCastTo(sc, Type::tsize_t); | |
| 6383 } | |
| 6384 | |
| 6385 if (t->ty == Tsarray || t->ty == Tarray || t->ty == Ttuple) | |
| 6386 sc->pop(); | |
| 6387 | |
| 6388 if (t->ty == Ttuple) | |
| 6389 { | |
| 6390 lwr = lwr->optimize(WANTvalue); | |
| 6391 upr = upr->optimize(WANTvalue); | |
| 6392 uinteger_t i1 = lwr->toUInteger(); | |
| 6393 uinteger_t i2 = upr->toUInteger(); | |
| 6394 | |
| 6395 size_t length; | |
| 6396 TupleExp *te; | |
| 6397 TypeTuple *tup; | |
| 6398 | |
| 6399 if (e1->op == TOKtuple) // slicing an expression tuple | |
| 6400 { te = (TupleExp *)e1; | |
| 6401 length = te->exps->dim; | |
| 6402 } | |
| 6403 else if (e1->op == TOKtype) // slicing a type tuple | |
| 6404 { tup = (TypeTuple *)t; | |
| 6405 length = Argument::dim(tup->arguments); | |
| 6406 } | |
| 6407 else | |
| 6408 assert(0); | |
| 6409 | |
| 6410 if (i1 <= i2 && i2 <= length) | |
| 6411 { size_t j1 = (size_t) i1; | |
| 6412 size_t j2 = (size_t) i2; | |
| 6413 | |
| 6414 if (e1->op == TOKtuple) | |
| 6415 { Expressions *exps = new Expressions; | |
| 6416 exps->setDim(j2 - j1); | |
| 6417 for (size_t i = 0; i < j2 - j1; i++) | |
| 6418 { Expression *e = (Expression *)te->exps->data[j1 + i]; | |
| 6419 exps->data[i] = (void *)e; | |
| 6420 } | |
| 6421 e = new TupleExp(loc, exps); | |
| 6422 } | |
| 6423 else | |
| 6424 { Arguments *args = new Arguments; | |
| 6425 args->reserve(j2 - j1); | |
| 6426 for (size_t i = j1; i < j2; i++) | |
| 6427 { Argument *arg = Argument::getNth(tup->arguments, i); | |
| 6428 args->push(arg); | |
| 6429 } | |
| 6430 e = new TypeExp(e1->loc, new TypeTuple(args)); | |
| 6431 } | |
| 6432 e = e->semantic(sc); | |
| 6433 } | |
| 6434 else | |
| 6435 { | |
| 6436 error("string slice [%ju .. %ju] is out of bounds", i1, i2); | |
| 6437 e = e1; | |
| 6438 } | |
| 6439 return e; | |
| 6440 } | |
| 6441 | |
| 6442 type = t->next->arrayOf(); | |
| 6443 return e; | |
| 6444 | |
| 6445 Lerror: | |
| 6446 char *s; | |
| 6447 if (t->ty == Tvoid) | |
| 6448 s = e1->toChars(); | |
| 6449 else | |
| 6450 s = t->toChars(); | |
| 6451 error("%s cannot be sliced with []", s); | |
| 6452 type = Type::terror; | |
| 6453 return e; | |
| 6454 } | |
| 6455 | |
| 6456 void SliceExp::checkEscape() | |
| 6457 { | |
| 6458 e1->checkEscape(); | |
| 6459 } | |
| 6460 | |
| 6461 Expression *SliceExp::toLvalue(Scope *sc, Expression *e) | |
| 6462 { | |
| 6463 return this; | |
| 6464 } | |
| 6465 | |
| 6466 Expression *SliceExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 6467 { | |
| 6468 error("slice expression %s is not a modifiable lvalue", toChars()); | |
| 6469 return this; | |
| 6470 } | |
| 6471 | |
| 6472 void SliceExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6473 { | |
| 6474 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 6475 buf->writeByte('['); | |
| 6476 if (upr || lwr) | |
| 6477 { | |
| 6478 if (lwr) | |
| 6479 expToCBuffer(buf, hgs, lwr, PREC_assign); | |
| 6480 else | |
| 6481 buf->writeByte('0'); | |
| 6482 buf->writestring(".."); | |
| 6483 if (upr) | |
| 6484 expToCBuffer(buf, hgs, upr, PREC_assign); | |
| 6485 else | |
| 6486 buf->writestring("length"); // BUG: should be array.length | |
| 6487 } | |
| 6488 buf->writeByte(']'); | |
| 6489 } | |
| 6490 | |
| 6491 /********************** ArrayLength **************************************/ | |
| 6492 | |
| 6493 ArrayLengthExp::ArrayLengthExp(Loc loc, Expression *e1) | |
| 6494 : UnaExp(loc, TOKarraylength, sizeof(ArrayLengthExp), e1) | |
| 6495 { | |
| 6496 } | |
| 6497 | |
| 6498 Expression *ArrayLengthExp::semantic(Scope *sc) | |
| 6499 { Expression *e; | |
| 6500 | |
| 6501 #if LOGSEMANTIC | |
| 6502 printf("ArrayLengthExp::semantic('%s')\n", toChars()); | |
| 6503 #endif | |
| 6504 if (!type) | |
| 6505 { | |
| 6506 UnaExp::semantic(sc); | |
| 6507 e1 = resolveProperties(sc, e1); | |
| 6508 | |
| 6509 type = Type::tsize_t; | |
| 6510 } | |
| 6511 return this; | |
| 6512 } | |
| 6513 | |
| 6514 void ArrayLengthExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6515 { | |
| 6516 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 6517 buf->writestring(".length"); | |
| 6518 } | |
| 6519 | |
| 6520 /*********************** ArrayExp *************************************/ | |
| 6521 | |
| 6522 // e1 [ i1, i2, i3, ... ] | |
| 6523 | |
| 6524 ArrayExp::ArrayExp(Loc loc, Expression *e1, Expressions *args) | |
| 6525 : UnaExp(loc, TOKarray, sizeof(ArrayExp), e1) | |
| 6526 { | |
| 6527 arguments = args; | |
| 6528 } | |
| 6529 | |
| 6530 Expression *ArrayExp::syntaxCopy() | |
| 6531 { | |
| 6532 return new ArrayExp(loc, e1->syntaxCopy(), arraySyntaxCopy(arguments)); | |
| 6533 } | |
| 6534 | |
| 6535 Expression *ArrayExp::semantic(Scope *sc) | |
| 6536 { Expression *e; | |
| 6537 Type *t1; | |
| 6538 | |
| 6539 #if LOGSEMANTIC | |
| 6540 printf("ArrayExp::semantic('%s')\n", toChars()); | |
| 6541 #endif | |
| 6542 UnaExp::semantic(sc); | |
| 6543 e1 = resolveProperties(sc, e1); | |
| 6544 | |
| 6545 t1 = e1->type->toBasetype(); | |
| 6546 if (t1->ty != Tclass && t1->ty != Tstruct) | |
| 6547 { // Convert to IndexExp | |
| 6548 if (arguments->dim != 1) | |
| 6549 error("only one index allowed to index %s", t1->toChars()); | |
| 6550 e = new IndexExp(loc, e1, (Expression *)arguments->data[0]); | |
| 6551 return e->semantic(sc); | |
| 6552 } | |
| 6553 | |
| 6554 // Run semantic() on each argument | |
| 6555 for (size_t i = 0; i < arguments->dim; i++) | |
| 6556 { e = (Expression *)arguments->data[i]; | |
| 6557 | |
| 6558 e = e->semantic(sc); | |
| 6559 if (!e->type) | |
| 6560 error("%s has no value", e->toChars()); | |
| 6561 arguments->data[i] = (void *)e; | |
| 6562 } | |
| 6563 | |
| 6564 expandTuples(arguments); | |
| 6565 assert(arguments && arguments->dim); | |
| 6566 | |
| 6567 e = op_overload(sc); | |
| 6568 if (!e) | |
| 6569 { error("no [] operator overload for type %s", e1->type->toChars()); | |
| 6570 e = e1; | |
| 6571 } | |
| 6572 return e; | |
| 6573 } | |
| 6574 | |
| 6575 | |
| 6576 Expression *ArrayExp::toLvalue(Scope *sc, Expression *e) | |
| 6577 { | |
| 6578 if (type && type->toBasetype()->ty == Tvoid) | |
| 6579 error("voids have no value"); | |
| 6580 return this; | |
| 6581 } | |
| 6582 | |
| 6583 | |
| 6584 void ArrayExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6585 { int i; | |
| 6586 | |
| 6587 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 6588 buf->writeByte('['); | |
| 6589 argsToCBuffer(buf, arguments, hgs); | |
| 6590 buf->writeByte(']'); | |
| 6591 } | |
| 6592 | |
| 6593 /************************* DotExp ***********************************/ | |
| 6594 | |
| 6595 DotExp::DotExp(Loc loc, Expression *e1, Expression *e2) | |
| 6596 : BinExp(loc, TOKdotexp, sizeof(DotExp), e1, e2) | |
| 6597 { | |
| 6598 } | |
| 6599 | |
| 6600 Expression *DotExp::semantic(Scope *sc) | |
| 6601 { | |
| 6602 #if LOGSEMANTIC | |
| 6603 printf("DotExp::semantic('%s')\n", toChars()); | |
| 6604 if (type) printf("\ttype = %s\n", type->toChars()); | |
| 6605 #endif | |
| 6606 e1 = e1->semantic(sc); | |
| 6607 e2 = e2->semantic(sc); | |
| 6608 if (e2->op == TOKimport) | |
| 6609 { | |
| 6610 ScopeExp *se = (ScopeExp *)e2; | |
| 6611 TemplateDeclaration *td = se->sds->isTemplateDeclaration(); | |
| 6612 if (td) | |
| 6613 { Expression *e = new DotTemplateExp(loc, e1, td); | |
| 6614 e = e->semantic(sc); | |
| 6615 return e; | |
| 6616 } | |
| 6617 } | |
| 6618 if (!type) | |
| 6619 type = e2->type; | |
| 6620 return this; | |
| 6621 } | |
| 6622 | |
| 6623 | |
| 6624 /************************* CommaExp ***********************************/ | |
| 6625 | |
| 6626 CommaExp::CommaExp(Loc loc, Expression *e1, Expression *e2) | |
| 6627 : BinExp(loc, TOKcomma, sizeof(CommaExp), e1, e2) | |
| 6628 { | |
| 6629 } | |
| 6630 | |
| 6631 Expression *CommaExp::semantic(Scope *sc) | |
| 6632 { | |
| 6633 if (!type) | |
| 6634 { BinExp::semanticp(sc); | |
| 6635 type = e2->type; | |
| 6636 } | |
| 6637 return this; | |
| 6638 } | |
| 6639 | |
| 6640 void CommaExp::checkEscape() | |
| 6641 { | |
| 6642 e2->checkEscape(); | |
| 6643 } | |
| 6644 | |
| 6645 Expression *CommaExp::toLvalue(Scope *sc, Expression *e) | |
| 6646 { | |
| 6647 e2 = e2->toLvalue(sc, NULL); | |
| 6648 return this; | |
| 6649 } | |
| 6650 | |
| 6651 Expression *CommaExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 6652 { | |
| 6653 e2 = e2->modifiableLvalue(sc, e); | |
| 6654 return this; | |
| 6655 } | |
| 6656 | |
| 6657 int CommaExp::isBool(int result) | |
| 6658 { | |
| 6659 return e2->isBool(result); | |
| 6660 } | |
| 6661 | |
| 6662 int CommaExp::checkSideEffect(int flag) | |
| 6663 { | |
| 6664 if (flag == 2) | |
| 6665 return e1->checkSideEffect(2) || e2->checkSideEffect(2); | |
| 6666 else | |
| 6667 { | |
| 6668 // Don't check e1 until we cast(void) the a,b code generation | |
| 6669 return e2->checkSideEffect(flag); | |
| 6670 } | |
| 6671 } | |
| 6672 | |
| 6673 /************************** IndexExp **********************************/ | |
| 6674 | |
| 6675 // e1 [ e2 ] | |
| 6676 | |
| 6677 IndexExp::IndexExp(Loc loc, Expression *e1, Expression *e2) | |
| 6678 : BinExp(loc, TOKindex, sizeof(IndexExp), e1, e2) | |
| 6679 { | |
| 6680 //printf("IndexExp::IndexExp('%s')\n", toChars()); | |
| 6681 lengthVar = NULL; | |
| 6682 modifiable = 0; // assume it is an rvalue | |
| 6683 } | |
| 6684 | |
| 6685 Expression *IndexExp::semantic(Scope *sc) | |
| 6686 { Expression *e; | |
| 6687 BinExp *b; | |
| 6688 UnaExp *u; | |
| 6689 Type *t1; | |
| 6690 ScopeDsymbol *sym; | |
| 6691 | |
| 6692 #if LOGSEMANTIC | |
| 6693 printf("IndexExp::semantic('%s')\n", toChars()); | |
| 6694 #endif | |
| 6695 if (type) | |
| 6696 return this; | |
| 6697 if (!e1->type) | |
| 6698 e1 = e1->semantic(sc); | |
| 6699 assert(e1->type); // semantic() should already be run on it | |
| 6700 e = this; | |
| 6701 | |
| 6702 // Note that unlike C we do not implement the int[ptr] | |
| 6703 | |
| 6704 t1 = e1->type->toBasetype(); | |
| 6705 | |
| 6706 if (t1->ty == Tsarray || t1->ty == Tarray || t1->ty == Ttuple) | |
| 6707 { // Create scope for 'length' variable | |
| 6708 sym = new ArrayScopeSymbol(this); | |
| 6709 sym->loc = loc; | |
| 6710 sym->parent = sc->scopesym; | |
| 6711 sc = sc->push(sym); | |
| 6712 } | |
| 6713 | |
| 6714 e2 = e2->semantic(sc); | |
| 6715 if (!e2->type) | |
| 6716 { | |
| 6717 error("%s has no value", e2->toChars()); | |
| 6718 e2->type = Type::terror; | |
| 6719 } | |
| 6720 e2 = resolveProperties(sc, e2); | |
| 6721 | |
| 6722 if (t1->ty == Tsarray || t1->ty == Tarray || t1->ty == Ttuple) | |
| 6723 sc = sc->pop(); | |
| 6724 | |
| 6725 switch (t1->ty) | |
| 6726 { | |
| 6727 case Tpointer: | |
| 6728 case Tarray: | |
| 6729 e2 = e2->implicitCastTo(sc, Type::tsize_t); | |
| 6730 e->type = t1->next; | |
| 6731 break; | |
| 6732 | |
| 6733 case Tsarray: | |
| 6734 { | |
| 6735 e2 = e2->implicitCastTo(sc, Type::tsize_t); | |
| 6736 | |
| 6737 TypeSArray *tsa = (TypeSArray *)t1; | |
| 6738 | |
| 6739 #if 0 // Don't do now, because it might be short-circuit evaluated | |
| 6740 // Do compile time array bounds checking if possible | |
| 6741 e2 = e2->optimize(WANTvalue); | |
| 6742 if (e2->op == TOKint64) | |
| 6743 { | |
| 6744 integer_t index = e2->toInteger(); | |
| 6745 integer_t length = tsa->dim->toInteger(); | |
| 6746 if (index < 0 || index >= length) | |
| 6747 error("array index [%lld] is outside array bounds [0 .. %lld]", | |
| 6748 index, length); | |
| 6749 } | |
| 6750 #endif | |
| 6751 e->type = t1->next; | |
| 6752 break; | |
| 6753 } | |
| 6754 | |
| 6755 case Taarray: | |
| 6756 { TypeAArray *taa = (TypeAArray *)t1; | |
| 6757 | |
| 6758 e2 = e2->implicitCastTo(sc, taa->index); // type checking | |
| 6759 e2 = e2->implicitCastTo(sc, taa->key); // actual argument type | |
| 6760 type = taa->next; | |
| 6761 break; | |
| 6762 } | |
| 6763 | |
| 6764 case Ttuple: | |
| 6765 { | |
| 6766 e2 = e2->implicitCastTo(sc, Type::tsize_t); | |
| 6767 e2 = e2->optimize(WANTvalue); | |
| 6768 uinteger_t index = e2->toUInteger(); | |
| 6769 size_t length; | |
| 6770 TupleExp *te; | |
| 6771 TypeTuple *tup; | |
| 6772 | |
| 6773 if (e1->op == TOKtuple) | |
| 6774 { te = (TupleExp *)e1; | |
| 6775 length = te->exps->dim; | |
| 6776 } | |
| 6777 else if (e1->op == TOKtype) | |
| 6778 { | |
| 6779 tup = (TypeTuple *)t1; | |
| 6780 length = Argument::dim(tup->arguments); | |
| 6781 } | |
| 6782 else | |
| 6783 assert(0); | |
| 6784 | |
| 6785 if (index < length) | |
| 6786 { | |
| 6787 | |
| 6788 if (e1->op == TOKtuple) | |
| 6789 e = (Expression *)te->exps->data[(size_t)index]; | |
| 6790 else | |
| 6791 e = new TypeExp(e1->loc, Argument::getNth(tup->arguments, (size_t)index)->type); | |
| 6792 } | |
| 6793 else | |
| 6794 { | |
| 6795 error("array index [%ju] is outside array bounds [0 .. %zu]", | |
| 6796 index, length); | |
| 6797 e = e1; | |
| 6798 } | |
| 6799 break; | |
| 6800 } | |
| 6801 | |
| 6802 default: | |
| 6803 error("%s must be an array or pointer type, not %s", | |
| 6804 e1->toChars(), e1->type->toChars()); | |
| 6805 type = Type::tint32; | |
| 6806 break; | |
| 6807 } | |
| 6808 return e; | |
| 6809 } | |
| 6810 | |
| 6811 Expression *IndexExp::toLvalue(Scope *sc, Expression *e) | |
| 6812 { | |
| 6813 // if (type && type->toBasetype()->ty == Tvoid) | |
| 6814 // error("voids have no value"); | |
| 6815 return this; | |
| 6816 } | |
| 6817 | |
| 6818 Expression *IndexExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 6819 { | |
| 6820 //printf("IndexExp::modifiableLvalue(%s)\n", toChars()); | |
| 6821 modifiable = 1; | |
| 6822 if (e1->op == TOKstring) | |
| 6823 error("string literals are immutable"); | |
| 6824 if (e1->type->toBasetype()->ty == Taarray) | |
| 6825 e1 = e1->modifiableLvalue(sc, e1); | |
| 6826 return toLvalue(sc, e); | |
| 6827 } | |
| 6828 | |
| 6829 void IndexExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6830 { | |
| 6831 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 6832 buf->writeByte('['); | |
| 6833 expToCBuffer(buf, hgs, e2, PREC_assign); | |
| 6834 buf->writeByte(']'); | |
| 6835 } | |
| 6836 | |
| 6837 | |
| 6838 /************************* PostExp ***********************************/ | |
| 6839 | |
| 6840 PostExp::PostExp(enum TOK op, Loc loc, Expression *e) | |
| 6841 : BinExp(loc, op, sizeof(PostExp), e, | |
| 6842 new IntegerExp(loc, 1, Type::tint32)) | |
| 6843 { | |
| 6844 } | |
| 6845 | |
| 6846 Expression *PostExp::semantic(Scope *sc) | |
| 6847 { Expression *e = this; | |
| 6848 | |
| 6849 if (!type) | |
| 6850 { | |
| 6851 BinExp::semantic(sc); | |
| 6852 e2 = resolveProperties(sc, e2); | |
| 6853 | |
| 6854 e = op_overload(sc); | |
| 6855 if (e) | |
| 6856 return e; | |
| 6857 | |
| 6858 e = this; | |
| 6859 e1 = e1->modifiableLvalue(sc, NULL); | |
| 6860 e1->checkScalar(); | |
| 6861 e1->checkNoBool(); | |
| 6862 if (e1->type->ty == Tpointer) | |
| 6863 e = scaleFactor(sc); | |
| 6864 else | |
| 6865 e2 = e2->castTo(sc, e1->type); | |
| 6866 e->type = e1->type; | |
| 6867 } | |
| 6868 return e; | |
| 6869 } | |
| 6870 | |
| 6871 void PostExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6872 { | |
| 6873 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 6874 buf->writestring((op == TOKplusplus) ? (char *)"++" : (char *)"--"); | |
| 6875 } | |
| 6876 | |
| 6877 /************************************************************/ | |
| 6878 | |
| 6879 /* Can be TOKconstruct too */ | |
| 6880 | |
| 6881 AssignExp::AssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 6882 : BinExp(loc, TOKassign, sizeof(AssignExp), e1, e2) | |
| 6883 { | |
| 6884 ismemset = 0; | |
| 6885 } | |
| 6886 | |
| 6887 Expression *AssignExp::semantic(Scope *sc) | |
| 6888 { Type *t1; | |
| 6889 Expression *e1old = e1; | |
| 6890 | |
| 6891 #if LOGSEMANTIC | |
| 6892 printf("AssignExp::semantic('%s')\n", toChars()); | |
| 6893 #endif | |
| 6894 //printf("e1->op = %d, '%s'\n", e1->op, Token::toChars(e1->op)); | |
| 6895 | |
| 6896 /* Look for operator overloading of a[i]=value. | |
| 6897 * Do it before semantic() otherwise the a[i] will have been | |
| 6898 * converted to a.opIndex() already. | |
| 6899 */ | |
| 6900 if (e1->op == TOKarray) | |
| 6901 { Type *t1; | |
| 6902 ArrayExp *ae = (ArrayExp *)e1; | |
| 6903 AggregateDeclaration *ad; | |
| 6904 Identifier *id = Id::index; | |
| 6905 | |
| 6906 ae->e1 = ae->e1->semantic(sc); | |
| 6907 t1 = ae->e1->type->toBasetype(); | |
| 6908 if (t1->ty == Tstruct) | |
| 6909 { | |
| 6910 ad = ((TypeStruct *)t1)->sym; | |
| 6911 goto L1; | |
| 6912 } | |
| 6913 else if (t1->ty == Tclass) | |
| 6914 { | |
| 6915 ad = ((TypeClass *)t1)->sym; | |
| 6916 L1: | |
| 6917 // Rewrite (a[i] = value) to (a.opIndexAssign(value, i)) | |
| 6918 if (search_function(ad, Id::indexass)) | |
| 6919 { Expression *e = new DotIdExp(loc, ae->e1, Id::indexass); | |
| 6920 Expressions *a = (Expressions *)ae->arguments->copy(); | |
| 6921 | |
| 6922 a->insert(0, e2); | |
| 6923 e = new CallExp(loc, e, a); | |
| 6924 e = e->semantic(sc); | |
| 6925 return e; | |
| 6926 } | |
| 6927 else | |
| 6928 { | |
| 6929 // Rewrite (a[i] = value) to (a.opIndex(i, value)) | |
| 6930 if (search_function(ad, id)) | |
| 6931 { Expression *e = new DotIdExp(loc, ae->e1, id); | |
| 6932 | |
| 6933 if (1 || !global.params.useDeprecated) | |
| 6934 error("operator [] assignment overload with opIndex(i, value) illegal, use opIndexAssign(value, i)"); | |
| 6935 | |
| 6936 e = new CallExp(loc, e, (Expression *)ae->arguments->data[0], e2); | |
| 6937 e = e->semantic(sc); | |
| 6938 return e; | |
| 6939 } | |
| 6940 } | |
| 6941 } | |
| 6942 } | |
| 6943 /* Look for operator overloading of a[i..j]=value. | |
| 6944 * Do it before semantic() otherwise the a[i..j] will have been | |
| 6945 * converted to a.opSlice() already. | |
| 6946 */ | |
| 6947 if (e1->op == TOKslice) | |
| 6948 { Type *t1; | |
| 6949 SliceExp *ae = (SliceExp *)e1; | |
| 6950 AggregateDeclaration *ad; | |
| 6951 Identifier *id = Id::index; | |
| 6952 | |
| 6953 ae->e1 = ae->e1->semantic(sc); | |
| 6954 ae->e1 = resolveProperties(sc, ae->e1); | |
| 6955 t1 = ae->e1->type->toBasetype(); | |
| 6956 if (t1->ty == Tstruct) | |
| 6957 { | |
| 6958 ad = ((TypeStruct *)t1)->sym; | |
| 6959 goto L2; | |
| 6960 } | |
| 6961 else if (t1->ty == Tclass) | |
| 6962 { | |
| 6963 ad = ((TypeClass *)t1)->sym; | |
| 6964 L2: | |
| 6965 // Rewrite (a[i..j] = value) to (a.opIndexAssign(value, i, j)) | |
| 6966 if (search_function(ad, Id::sliceass)) | |
| 6967 { Expression *e = new DotIdExp(loc, ae->e1, Id::sliceass); | |
| 6968 Expressions *a = new Expressions(); | |
| 6969 | |
| 6970 a->push(e2); | |
| 6971 if (ae->lwr) | |
| 6972 { a->push(ae->lwr); | |
| 6973 assert(ae->upr); | |
| 6974 a->push(ae->upr); | |
| 6975 } | |
| 6976 else | |
| 6977 assert(!ae->upr); | |
| 6978 e = new CallExp(loc, e, a); | |
| 6979 e = e->semantic(sc); | |
| 6980 return e; | |
| 6981 } | |
| 6982 } | |
| 6983 } | |
| 6984 | |
| 6985 BinExp::semantic(sc); | |
| 6986 e2 = resolveProperties(sc, e2); | |
| 6987 assert(e1->type); | |
| 6988 | |
| 6989 t1 = e1->type->toBasetype(); | |
| 6990 | |
| 6991 if (t1->ty == Tfunction) | |
| 6992 { // Rewrite f=value to f(value) | |
| 6993 Expression *e; | |
| 6994 | |
| 6995 e = new CallExp(loc, e1, e2); | |
| 6996 e = e->semantic(sc); | |
| 6997 return e; | |
| 6998 } | |
| 6999 | |
| 7000 /* If it is an assignment from a 'foreign' type, | |
| 7001 * check for operator overloading. | |
| 7002 */ | |
| 7003 if (t1->ty == Tclass || t1->ty == Tstruct) | |
| 7004 { | |
| 7005 if (!e2->type->implicitConvTo(e1->type)) | |
| 7006 { | |
| 7007 Expression *e = op_overload(sc); | |
| 7008 if (e) | |
| 7009 return e; | |
| 7010 } | |
| 7011 } | |
| 7012 | |
| 7013 e2->rvalue(); | |
| 7014 | |
| 7015 if (e1->op == TOKarraylength) | |
| 7016 { | |
| 7017 // e1 is not an lvalue, but we let code generator handle it | |
| 7018 ArrayLengthExp *ale = (ArrayLengthExp *)e1; | |
| 7019 | |
| 7020 ale->e1 = ale->e1->modifiableLvalue(sc, NULL); | |
| 7021 } | |
| 7022 else if (e1->op == TOKslice) | |
| 7023 ; | |
| 7024 else | |
| 7025 { // Try to do a decent error message with the expression | |
| 7026 // before it got constant folded | |
| 7027 e1 = e1->modifiableLvalue(sc, e1old); | |
| 7028 } | |
| 7029 | |
| 7030 if (e1->op == TOKslice && | |
| 7031 t1->next && | |
| 7032 !(t1->next->equals(e2->type->next) /*|| | |
| 7033 (t1->next->ty == Tchar && e2->op == TOKstring)*/) | |
| 7034 ) | |
| 7035 { // memset | |
| 7036 e2 = e2->implicitCastTo(sc, t1->next); | |
| 7037 } | |
| 7038 #if 0 | |
| 7039 else if (e1->op == TOKslice && | |
| 7040 e2->op == TOKstring && | |
| 7041 ((StringExp *)e2)->len == 1) | |
| 7042 { // memset | |
| 7043 e2 = e2->implicitCastTo(sc, e1->type->next); | |
| 7044 } | |
| 7045 #endif | |
| 7046 else if (t1->ty == Tsarray) | |
| 7047 { | |
| 7048 error("cannot assign to static array %s", e1->toChars()); | |
| 7049 } | |
| 7050 else | |
| 7051 { | |
| 7052 e2 = e2->implicitCastTo(sc, e1->type); | |
| 7053 } | |
| 7054 type = e1->type; | |
| 7055 assert(type); | |
| 7056 return this; | |
| 7057 } | |
| 7058 | |
| 7059 Expression *AssignExp::checkToBoolean() | |
| 7060 { | |
| 7061 // Things like: | |
| 7062 // if (a = b) ... | |
| 7063 // are usually mistakes. | |
| 7064 | |
| 7065 error("'=' does not give a boolean result"); | |
| 7066 return this; | |
| 7067 } | |
| 7068 | |
| 7069 /************************************************************/ | |
| 7070 | |
| 7071 AddAssignExp::AddAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7072 : BinExp(loc, TOKaddass, sizeof(AddAssignExp), e1, e2) | |
| 7073 { | |
| 7074 } | |
| 7075 | |
| 7076 Expression *AddAssignExp::semantic(Scope *sc) | |
| 7077 { Expression *e; | |
| 7078 | |
| 7079 if (type) | |
| 7080 return this; | |
| 7081 | |
| 7082 BinExp::semantic(sc); | |
| 7083 e2 = resolveProperties(sc, e2); | |
| 7084 | |
| 7085 e = op_overload(sc); | |
| 7086 if (e) | |
| 7087 return e; | |
| 7088 | |
| 7089 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7090 | |
| 7091 Type *tb1 = e1->type->toBasetype(); | |
| 7092 Type *tb2 = e2->type->toBasetype(); | |
| 7093 | |
| 7094 if ((tb1->ty == Tarray || tb1->ty == Tsarray) && | |
| 7095 (tb2->ty == Tarray || tb2->ty == Tsarray) && | |
| 7096 tb1->next->equals(tb2->next) | |
| 7097 ) | |
| 7098 { | |
| 7099 type = e1->type; | |
| 7100 e = this; | |
| 7101 } | |
| 7102 else | |
| 7103 { | |
| 7104 e1->checkScalar(); | |
| 7105 e1->checkNoBool(); | |
| 7106 if (tb1->ty == Tpointer && tb2->isintegral()) | |
| 7107 e = scaleFactor(sc); | |
| 7108 else if (tb1->ty == Tbit || tb1->ty == Tbool) | |
| 7109 { | |
| 7110 #if 0 | |
| 7111 // Need to rethink this | |
| 7112 if (e1->op != TOKvar) | |
| 7113 { // Rewrite e1+=e2 to (v=&e1),*v=*v+e2 | |
| 7114 VarDeclaration *v; | |
| 7115 Expression *ea; | |
| 7116 Expression *ex; | |
| 7117 | |
| 7118 char name[6+6+1]; | |
| 7119 Identifier *id; | |
| 7120 static int idn; | |
| 7121 sprintf(name, "__name%d", ++idn); | |
| 7122 id = Lexer::idPool(name); | |
| 7123 | |
| 7124 v = new VarDeclaration(loc, tb1->pointerTo(), id, NULL); | |
| 7125 v->semantic(sc); | |
| 7126 if (!sc->insert(v)) | |
| 7127 assert(0); | |
| 7128 v->parent = sc->func; | |
| 7129 | |
| 7130 ea = new AddrExp(loc, e1); | |
| 7131 ea = new AssignExp(loc, new VarExp(loc, v), ea); | |
| 7132 | |
| 7133 ex = new VarExp(loc, v); | |
| 7134 ex = new PtrExp(loc, ex); | |
| 7135 e = new AddExp(loc, ex, e2); | |
| 7136 e = new CastExp(loc, e, e1->type); | |
| 7137 e = new AssignExp(loc, ex->syntaxCopy(), e); | |
| 7138 | |
| 7139 e = new CommaExp(loc, ea, e); | |
| 7140 } | |
| 7141 else | |
| 7142 #endif | |
| 7143 { // Rewrite e1+=e2 to e1=e1+e2 | |
| 7144 // BUG: doesn't account for side effects in e1 | |
| 7145 // BUG: other assignment operators for bits aren't handled at all | |
| 7146 e = new AddExp(loc, e1, e2); | |
| 7147 e = new CastExp(loc, e, e1->type); | |
| 7148 e = new AssignExp(loc, e1->syntaxCopy(), e); | |
| 7149 } | |
| 7150 e = e->semantic(sc); | |
| 7151 } | |
| 7152 else | |
| 7153 { | |
| 7154 type = e1->type; | |
| 7155 typeCombine(sc); | |
| 7156 e1->checkArithmetic(); | |
| 7157 e2->checkArithmetic(); | |
| 7158 if (type->isreal() || type->isimaginary()) | |
| 7159 { | |
| 7160 assert(global.errors || e2->type->isfloating()); | |
| 7161 e2 = e2->castTo(sc, e1->type); | |
| 7162 } | |
| 7163 e = this; | |
| 7164 } | |
| 7165 } | |
| 7166 return e; | |
| 7167 } | |
| 7168 | |
| 7169 /************************************************************/ | |
| 7170 | |
| 7171 MinAssignExp::MinAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7172 : BinExp(loc, TOKminass, sizeof(MinAssignExp), e1, e2) | |
| 7173 { | |
| 7174 } | |
| 7175 | |
| 7176 Expression *MinAssignExp::semantic(Scope *sc) | |
| 7177 { Expression *e; | |
| 7178 | |
| 7179 if (type) | |
| 7180 return this; | |
| 7181 | |
| 7182 BinExp::semantic(sc); | |
| 7183 e2 = resolveProperties(sc, e2); | |
| 7184 | |
| 7185 e = op_overload(sc); | |
| 7186 if (e) | |
| 7187 return e; | |
| 7188 | |
| 7189 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7190 e1->checkScalar(); | |
| 7191 e1->checkNoBool(); | |
| 7192 if (e1->type->ty == Tpointer && e2->type->isintegral()) | |
| 7193 e = scaleFactor(sc); | |
| 7194 else | |
| 7195 { | |
| 7196 type = e1->type; | |
| 7197 typeCombine(sc); | |
| 7198 e1->checkArithmetic(); | |
| 7199 e2->checkArithmetic(); | |
| 7200 if (type->isreal() || type->isimaginary()) | |
| 7201 { | |
| 7202 assert(e2->type->isfloating()); | |
| 7203 e2 = e2->castTo(sc, e1->type); | |
| 7204 } | |
| 7205 e = this; | |
| 7206 } | |
| 7207 return e; | |
| 7208 } | |
| 7209 | |
| 7210 /************************************************************/ | |
| 7211 | |
| 7212 CatAssignExp::CatAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7213 : BinExp(loc, TOKcatass, sizeof(CatAssignExp), e1, e2) | |
| 7214 { | |
| 7215 } | |
| 7216 | |
| 7217 Expression *CatAssignExp::semantic(Scope *sc) | |
| 7218 { Expression *e; | |
| 7219 | |
| 7220 BinExp::semantic(sc); | |
| 7221 e2 = resolveProperties(sc, e2); | |
| 7222 | |
| 7223 e = op_overload(sc); | |
| 7224 if (e) | |
| 7225 return e; | |
| 7226 | |
| 7227 if (e1->op == TOKslice) | |
| 7228 { SliceExp *se = (SliceExp *)e1; | |
| 7229 | |
| 7230 if (se->e1->type->toBasetype()->ty == Tsarray) | |
| 7231 error("cannot append to static array %s", se->e1->type->toChars()); | |
| 7232 } | |
| 7233 | |
| 7234 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7235 | |
| 7236 Type *tb1 = e1->type->toBasetype(); | |
| 7237 Type *tb2 = e2->type->toBasetype(); | |
| 7238 | |
| 7239 if ((tb1->ty == Tarray) && | |
| 7240 (tb2->ty == Tarray || tb2->ty == Tsarray) && | |
| 7241 e2->implicitConvTo(e1->type) | |
| 7242 //e1->type->next->equals(e2->type->next) | |
| 7243 ) | |
| 7244 { // Append array | |
| 7245 e2 = e2->castTo(sc, e1->type); | |
| 7246 type = e1->type; | |
| 7247 e = this; | |
| 7248 } | |
| 7249 else if ((tb1->ty == Tarray) && | |
| 7250 e2->implicitConvTo(tb1->next) | |
| 7251 ) | |
| 7252 { // Append element | |
| 7253 e2 = e2->castTo(sc, tb1->next); | |
| 7254 type = e1->type; | |
| 7255 e = this; | |
| 7256 } | |
| 7257 else | |
| 7258 { | |
| 7259 error("cannot append type %s to type %s", tb2->toChars(), tb1->toChars()); | |
| 7260 type = Type::tint32; | |
| 7261 e = this; | |
| 7262 } | |
| 7263 return e; | |
| 7264 } | |
| 7265 | |
| 7266 /************************************************************/ | |
| 7267 | |
| 7268 MulAssignExp::MulAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7269 : BinExp(loc, TOKmulass, sizeof(MulAssignExp), e1, e2) | |
| 7270 { | |
| 7271 } | |
| 7272 | |
| 7273 Expression *MulAssignExp::semantic(Scope *sc) | |
| 7274 { Expression *e; | |
| 7275 | |
| 7276 BinExp::semantic(sc); | |
| 7277 e2 = resolveProperties(sc, e2); | |
| 7278 | |
| 7279 e = op_overload(sc); | |
| 7280 if (e) | |
| 7281 return e; | |
| 7282 | |
| 7283 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7284 e1->checkScalar(); | |
| 7285 e1->checkNoBool(); | |
| 7286 type = e1->type; | |
| 7287 typeCombine(sc); | |
| 7288 e1->checkArithmetic(); | |
| 7289 e2->checkArithmetic(); | |
| 7290 if (e2->type->isfloating()) | |
| 7291 { Type *t1; | |
| 7292 Type *t2; | |
| 7293 | |
| 7294 t1 = e1->type; | |
| 7295 t2 = e2->type; | |
| 7296 if (t1->isreal()) | |
| 7297 { | |
| 7298 if (t2->isimaginary() || t2->iscomplex()) | |
| 7299 { | |
| 7300 e2 = e2->castTo(sc, t1); | |
| 7301 } | |
| 7302 } | |
| 7303 else if (t1->isimaginary()) | |
| 7304 { | |
| 7305 if (t2->isimaginary() || t2->iscomplex()) | |
| 7306 { | |
| 7307 switch (t1->ty) | |
| 7308 { | |
| 7309 case Timaginary32: t2 = Type::tfloat32; break; | |
| 7310 case Timaginary64: t2 = Type::tfloat64; break; | |
| 7311 case Timaginary80: t2 = Type::tfloat80; break; | |
| 7312 default: | |
| 7313 assert(0); | |
| 7314 } | |
| 7315 e2 = e2->castTo(sc, t2); | |
| 7316 } | |
| 7317 } | |
| 7318 } | |
| 7319 return this; | |
| 7320 } | |
| 7321 | |
| 7322 /************************************************************/ | |
| 7323 | |
| 7324 DivAssignExp::DivAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7325 : BinExp(loc, TOKdivass, sizeof(DivAssignExp), e1, e2) | |
| 7326 { | |
| 7327 } | |
| 7328 | |
| 7329 Expression *DivAssignExp::semantic(Scope *sc) | |
| 7330 { Expression *e; | |
| 7331 | |
| 7332 BinExp::semantic(sc); | |
| 7333 e2 = resolveProperties(sc, e2); | |
| 7334 | |
| 7335 e = op_overload(sc); | |
| 7336 if (e) | |
| 7337 return e; | |
| 7338 | |
| 7339 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7340 e1->checkScalar(); | |
| 7341 e1->checkNoBool(); | |
| 7342 type = e1->type; | |
| 7343 typeCombine(sc); | |
| 7344 e1->checkArithmetic(); | |
| 7345 e2->checkArithmetic(); | |
| 7346 if (e2->type->isimaginary()) | |
| 7347 { Type *t1; | |
| 7348 Type *t2; | |
| 7349 | |
| 7350 t1 = e1->type; | |
| 7351 if (t1->isreal()) | |
| 7352 { // x/iv = i(-x/v) | |
| 7353 // Therefore, the result is 0 | |
| 7354 e2 = new CommaExp(loc, e2, new RealExp(loc, 0, t1)); | |
| 7355 e2->type = t1; | |
| 7356 e = new AssignExp(loc, e1, e2); | |
| 7357 e->type = t1; | |
| 7358 return e; | |
| 7359 } | |
| 7360 else if (t1->isimaginary()) | |
| 7361 { Expression *e; | |
| 7362 | |
| 7363 switch (t1->ty) | |
| 7364 { | |
| 7365 case Timaginary32: t2 = Type::tfloat32; break; | |
| 7366 case Timaginary64: t2 = Type::tfloat64; break; | |
| 7367 case Timaginary80: t2 = Type::tfloat80; break; | |
| 7368 default: | |
| 7369 assert(0); | |
| 7370 } | |
| 7371 e2 = e2->castTo(sc, t2); | |
| 7372 e = new AssignExp(loc, e1, e2); | |
| 7373 e->type = t1; | |
| 7374 return e; | |
| 7375 } | |
| 7376 } | |
| 7377 return this; | |
| 7378 } | |
| 7379 | |
| 7380 /************************************************************/ | |
| 7381 | |
| 7382 ModAssignExp::ModAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7383 : BinExp(loc, TOKmodass, sizeof(ModAssignExp), e1, e2) | |
| 7384 { | |
| 7385 } | |
| 7386 | |
| 7387 Expression *ModAssignExp::semantic(Scope *sc) | |
| 7388 { | |
| 7389 return commonSemanticAssign(sc); | |
| 7390 } | |
| 7391 | |
| 7392 /************************************************************/ | |
| 7393 | |
| 7394 ShlAssignExp::ShlAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7395 : BinExp(loc, TOKshlass, sizeof(ShlAssignExp), e1, e2) | |
| 7396 { | |
| 7397 } | |
| 7398 | |
| 7399 Expression *ShlAssignExp::semantic(Scope *sc) | |
| 7400 { Expression *e; | |
| 7401 | |
| 7402 //printf("ShlAssignExp::semantic()\n"); | |
| 7403 BinExp::semantic(sc); | |
| 7404 e2 = resolveProperties(sc, e2); | |
| 7405 | |
| 7406 e = op_overload(sc); | |
| 7407 if (e) | |
| 7408 return e; | |
| 7409 | |
| 7410 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7411 e1->checkScalar(); | |
| 7412 e1->checkNoBool(); | |
| 7413 type = e1->type; | |
| 7414 typeCombine(sc); | |
| 7415 e1->checkIntegral(); | |
| 7416 e2 = e2->checkIntegral(); | |
| 42 | 7417 //e2 = e2->castTo(sc, Type::tshiftcnt); |
| 7418 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 1 | 7419 return this; |
| 7420 } | |
| 7421 | |
| 7422 /************************************************************/ | |
| 7423 | |
| 7424 ShrAssignExp::ShrAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7425 : BinExp(loc, TOKshrass, sizeof(ShrAssignExp), e1, e2) | |
| 7426 { | |
| 7427 } | |
| 7428 | |
| 7429 Expression *ShrAssignExp::semantic(Scope *sc) | |
| 7430 { Expression *e; | |
| 7431 | |
| 7432 BinExp::semantic(sc); | |
| 7433 e2 = resolveProperties(sc, e2); | |
| 7434 | |
| 7435 e = op_overload(sc); | |
| 7436 if (e) | |
| 7437 return e; | |
| 7438 | |
| 7439 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7440 e1->checkScalar(); | |
| 7441 e1->checkNoBool(); | |
| 7442 type = e1->type; | |
| 7443 typeCombine(sc); | |
| 7444 e1->checkIntegral(); | |
| 7445 e2 = e2->checkIntegral(); | |
| 42 | 7446 //e2 = e2->castTo(sc, Type::tshiftcnt); |
| 7447 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 1 | 7448 return this; |
| 7449 } | |
| 7450 | |
| 7451 /************************************************************/ | |
| 7452 | |
| 7453 UshrAssignExp::UshrAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7454 : BinExp(loc, TOKushrass, sizeof(UshrAssignExp), e1, e2) | |
| 7455 { | |
| 7456 } | |
| 7457 | |
| 7458 Expression *UshrAssignExp::semantic(Scope *sc) | |
| 7459 { Expression *e; | |
| 7460 | |
| 7461 BinExp::semantic(sc); | |
| 7462 e2 = resolveProperties(sc, e2); | |
| 7463 | |
| 7464 e = op_overload(sc); | |
| 7465 if (e) | |
| 7466 return e; | |
| 7467 | |
| 7468 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7469 e1->checkScalar(); | |
| 7470 e1->checkNoBool(); | |
| 7471 type = e1->type; | |
| 7472 typeCombine(sc); | |
| 7473 e1->checkIntegral(); | |
| 7474 e2 = e2->checkIntegral(); | |
| 42 | 7475 //e2 = e2->castTo(sc, Type::tshiftcnt); |
| 7476 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 1 | 7477 return this; |
| 7478 } | |
| 7479 | |
| 7480 /************************************************************/ | |
| 7481 | |
| 7482 AndAssignExp::AndAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7483 : BinExp(loc, TOKandass, sizeof(AndAssignExp), e1, e2) | |
| 7484 { | |
| 7485 } | |
| 7486 | |
| 7487 Expression *AndAssignExp::semantic(Scope *sc) | |
| 7488 { | |
| 7489 return commonSemanticAssignIntegral(sc); | |
| 7490 } | |
| 7491 | |
| 7492 /************************************************************/ | |
| 7493 | |
| 7494 OrAssignExp::OrAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7495 : BinExp(loc, TOKorass, sizeof(OrAssignExp), e1, e2) | |
| 7496 { | |
| 7497 } | |
| 7498 | |
| 7499 Expression *OrAssignExp::semantic(Scope *sc) | |
| 7500 { | |
| 7501 return commonSemanticAssignIntegral(sc); | |
| 7502 } | |
| 7503 | |
| 7504 /************************************************************/ | |
| 7505 | |
| 7506 XorAssignExp::XorAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7507 : BinExp(loc, TOKxorass, sizeof(XorAssignExp), e1, e2) | |
| 7508 { | |
| 7509 } | |
| 7510 | |
| 7511 Expression *XorAssignExp::semantic(Scope *sc) | |
| 7512 { | |
| 7513 return commonSemanticAssignIntegral(sc); | |
| 7514 } | |
| 7515 | |
| 7516 /************************* AddExp *****************************/ | |
| 7517 | |
| 7518 AddExp::AddExp(Loc loc, Expression *e1, Expression *e2) | |
| 7519 : BinExp(loc, TOKadd, sizeof(AddExp), e1, e2) | |
| 7520 { | |
| 7521 } | |
| 7522 | |
| 7523 Expression *AddExp::semantic(Scope *sc) | |
| 7524 { Expression *e; | |
| 7525 | |
| 7526 #if LOGSEMANTIC | |
| 7527 printf("AddExp::semantic('%s')\n", toChars()); | |
| 7528 #endif | |
| 7529 if (!type) | |
| 7530 { | |
| 7531 BinExp::semanticp(sc); | |
| 7532 | |
| 7533 e = op_overload(sc); | |
| 7534 if (e) | |
| 7535 return e; | |
| 7536 | |
| 7537 Type *tb1 = e1->type->toBasetype(); | |
| 7538 Type *tb2 = e2->type->toBasetype(); | |
| 7539 | |
| 7540 if ((tb1->ty == Tarray || tb1->ty == Tsarray) && | |
| 7541 (tb2->ty == Tarray || tb2->ty == Tsarray) && | |
| 7542 tb1->next->equals(tb2->next) | |
| 7543 ) | |
| 7544 { | |
| 7545 type = e1->type; | |
| 7546 e = this; | |
| 7547 } | |
| 7548 else if (tb1->ty == Tpointer && e2->type->isintegral() || | |
| 7549 tb2->ty == Tpointer && e1->type->isintegral()) | |
| 7550 e = scaleFactor(sc); | |
| 7551 else if (tb1->ty == Tpointer && tb2->ty == Tpointer) | |
| 7552 { | |
| 7553 incompatibleTypes(); | |
| 7554 type = e1->type; | |
| 7555 e = this; | |
| 7556 } | |
| 7557 else | |
| 7558 { | |
| 7559 typeCombine(sc); | |
| 7560 if ((e1->type->isreal() && e2->type->isimaginary()) || | |
| 7561 (e1->type->isimaginary() && e2->type->isreal())) | |
| 7562 { | |
| 7563 switch (type->toBasetype()->ty) | |
| 7564 { | |
| 7565 case Tfloat32: | |
| 7566 case Timaginary32: | |
| 7567 type = Type::tcomplex32; | |
| 7568 break; | |
| 7569 | |
| 7570 case Tfloat64: | |
| 7571 case Timaginary64: | |
| 7572 type = Type::tcomplex64; | |
| 7573 break; | |
| 7574 | |
| 7575 case Tfloat80: | |
| 7576 case Timaginary80: | |
| 7577 type = Type::tcomplex80; | |
| 7578 break; | |
| 7579 | |
| 7580 default: | |
| 7581 assert(0); | |
| 7582 } | |
| 7583 } | |
| 7584 e = this; | |
| 7585 } | |
| 7586 return e; | |
| 7587 } | |
| 7588 return this; | |
| 7589 } | |
| 7590 | |
| 7591 /************************************************************/ | |
| 7592 | |
| 7593 MinExp::MinExp(Loc loc, Expression *e1, Expression *e2) | |
| 7594 : BinExp(loc, TOKmin, sizeof(MinExp), e1, e2) | |
| 7595 { | |
| 7596 } | |
| 7597 | |
| 7598 Expression *MinExp::semantic(Scope *sc) | |
| 7599 { Expression *e; | |
| 7600 Type *t1; | |
| 7601 Type *t2; | |
| 7602 | |
| 7603 #if LOGSEMANTIC | |
| 7604 printf("MinExp::semantic('%s')\n", toChars()); | |
| 7605 #endif | |
| 7606 if (type) | |
| 7607 return this; | |
| 7608 | |
| 7609 BinExp::semanticp(sc); | |
| 7610 | |
| 7611 e = op_overload(sc); | |
| 7612 if (e) | |
| 7613 return e; | |
| 7614 | |
| 7615 e = this; | |
| 7616 t1 = e1->type->toBasetype(); | |
| 7617 t2 = e2->type->toBasetype(); | |
| 7618 if (t1->ty == Tpointer) | |
| 7619 { | |
| 7620 if (t2->ty == Tpointer) | |
| 7621 { // Need to divide the result by the stride | |
| 7622 // Replace (ptr - ptr) with (ptr - ptr) / stride | |
| 7623 d_int64 stride; | |
| 7624 Expression *e; | |
| 7625 | |
| 7626 typeCombine(sc); // make sure pointer types are compatible | |
| 7627 type = Type::tptrdiff_t; | |
| 7628 stride = t2->next->size(); | |
| 7629 e = new DivExp(loc, this, new IntegerExp(0, stride, Type::tptrdiff_t)); | |
| 7630 e->type = Type::tptrdiff_t; | |
| 7631 return e; | |
| 7632 } | |
| 7633 else if (t2->isintegral()) | |
| 7634 e = scaleFactor(sc); | |
| 7635 else | |
| 7636 { error("incompatible types for -"); | |
| 7637 return new IntegerExp(0); | |
| 7638 } | |
| 7639 } | |
| 7640 else if (t2->ty == Tpointer) | |
| 7641 { | |
| 7642 type = e2->type; | |
| 7643 error("can't subtract pointer from %s", e1->type->toChars()); | |
| 7644 return new IntegerExp(0); | |
| 7645 } | |
| 7646 else | |
| 7647 { | |
| 7648 typeCombine(sc); | |
| 7649 t1 = e1->type->toBasetype(); | |
| 7650 t2 = e2->type->toBasetype(); | |
| 7651 if ((t1->isreal() && t2->isimaginary()) || | |
| 7652 (t1->isimaginary() && t2->isreal())) | |
| 7653 { | |
| 7654 switch (type->ty) | |
| 7655 { | |
| 7656 case Tfloat32: | |
| 7657 case Timaginary32: | |
| 7658 type = Type::tcomplex32; | |
| 7659 break; | |
| 7660 | |
| 7661 case Tfloat64: | |
| 7662 case Timaginary64: | |
| 7663 type = Type::tcomplex64; | |
| 7664 break; | |
| 7665 | |
| 7666 case Tfloat80: | |
| 7667 case Timaginary80: | |
| 7668 type = Type::tcomplex80; | |
| 7669 break; | |
| 7670 | |
| 7671 default: | |
| 7672 assert(0); | |
| 7673 } | |
| 7674 } | |
| 7675 } | |
| 7676 return e; | |
| 7677 } | |
| 7678 | |
| 7679 /************************* CatExp *****************************/ | |
| 7680 | |
| 7681 CatExp::CatExp(Loc loc, Expression *e1, Expression *e2) | |
| 7682 : BinExp(loc, TOKcat, sizeof(CatExp), e1, e2) | |
| 7683 { | |
| 7684 } | |
| 7685 | |
| 7686 Expression *CatExp::semantic(Scope *sc) | |
| 7687 { Expression *e; | |
| 7688 | |
| 7689 //printf("CatExp::semantic() %s\n", toChars()); | |
| 7690 if (!type) | |
| 7691 { | |
| 7692 BinExp::semanticp(sc); | |
| 7693 e = op_overload(sc); | |
| 7694 if (e) | |
| 7695 return e; | |
| 7696 | |
| 7697 Type *tb1 = e1->type->toBasetype(); | |
| 7698 Type *tb2 = e2->type->toBasetype(); | |
| 7699 | |
| 7700 | |
| 7701 /* BUG: Should handle things like: | |
| 7702 * char c; | |
| 7703 * c ~ ' ' | |
| 7704 * ' ' ~ c; | |
| 7705 */ | |
| 7706 | |
| 7707 #if 0 | |
| 7708 e1->type->print(); | |
| 7709 e2->type->print(); | |
| 7710 #endif | |
| 7711 if ((tb1->ty == Tsarray || tb1->ty == Tarray) && | |
| 7712 e2->type->equals(tb1->next)) | |
| 7713 { | |
| 7714 type = tb1->next->arrayOf(); | |
| 7715 if (tb2->ty == Tarray) | |
| 7716 { // Make e2 into [e2] | |
| 7717 e2 = new ArrayLiteralExp(e2->loc, e2); | |
| 7718 e2->type = type; | |
| 7719 } | |
| 7720 return this; | |
| 7721 } | |
| 7722 else if ((tb2->ty == Tsarray || tb2->ty == Tarray) && | |
| 7723 e1->type->equals(tb2->next)) | |
| 7724 { | |
| 7725 type = tb2->next->arrayOf(); | |
| 7726 if (tb1->ty == Tarray) | |
| 7727 { // Make e1 into [e1] | |
| 7728 e1 = new ArrayLiteralExp(e1->loc, e1); | |
| 7729 e1->type = type; | |
| 7730 } | |
| 7731 return this; | |
| 7732 } | |
| 7733 | |
| 7734 typeCombine(sc); | |
| 7735 | |
| 7736 if (type->toBasetype()->ty == Tsarray) | |
| 7737 type = type->toBasetype()->next->arrayOf(); | |
| 7738 #if 0 | |
| 7739 e1->type->print(); | |
| 7740 e2->type->print(); | |
| 7741 type->print(); | |
| 7742 print(); | |
| 7743 #endif | |
| 7744 if (e1->op == TOKstring && e2->op == TOKstring) | |
| 7745 e = optimize(WANTvalue); | |
| 7746 else if (e1->type->equals(e2->type) && | |
| 7747 (e1->type->toBasetype()->ty == Tarray || | |
| 7748 e1->type->toBasetype()->ty == Tsarray)) | |
| 7749 { | |
| 7750 e = this; | |
| 7751 } | |
| 7752 else | |
| 7753 { | |
| 7754 error("Can only concatenate arrays, not (%s ~ %s)", | |
| 7755 e1->type->toChars(), e2->type->toChars()); | |
| 7756 type = Type::tint32; | |
| 7757 e = this; | |
| 7758 } | |
| 7759 e->type = e->type->semantic(loc, sc); | |
| 7760 return e; | |
| 7761 } | |
| 7762 return this; | |
| 7763 } | |
| 7764 | |
| 7765 /************************************************************/ | |
| 7766 | |
| 7767 MulExp::MulExp(Loc loc, Expression *e1, Expression *e2) | |
| 7768 : BinExp(loc, TOKmul, sizeof(MulExp), e1, e2) | |
| 7769 { | |
| 7770 } | |
| 7771 | |
| 7772 Expression *MulExp::semantic(Scope *sc) | |
| 7773 { Expression *e; | |
| 7774 | |
| 7775 #if 0 | |
| 7776 printf("MulExp::semantic() %s\n", toChars()); | |
| 7777 #endif | |
| 7778 if (type) | |
| 7779 { | |
| 7780 return this; | |
| 7781 } | |
| 7782 | |
| 7783 BinExp::semanticp(sc); | |
| 7784 e = op_overload(sc); | |
| 7785 if (e) | |
| 7786 return e; | |
| 7787 | |
| 7788 typeCombine(sc); | |
| 7789 e1->checkArithmetic(); | |
| 7790 e2->checkArithmetic(); | |
| 7791 if (type->isfloating()) | |
| 7792 { Type *t1 = e1->type; | |
| 7793 Type *t2 = e2->type; | |
| 7794 | |
| 7795 if (t1->isreal()) | |
| 7796 { | |
| 7797 type = t2; | |
| 7798 } | |
| 7799 else if (t2->isreal()) | |
| 7800 { | |
| 7801 type = t1; | |
| 7802 } | |
| 7803 else if (t1->isimaginary()) | |
| 7804 { | |
| 7805 if (t2->isimaginary()) | |
| 7806 { Expression *e; | |
| 7807 | |
| 7808 switch (t1->ty) | |
| 7809 { | |
| 7810 case Timaginary32: type = Type::tfloat32; break; | |
| 7811 case Timaginary64: type = Type::tfloat64; break; | |
| 7812 case Timaginary80: type = Type::tfloat80; break; | |
| 7813 default: assert(0); | |
| 7814 } | |
| 7815 | |
| 7816 // iy * iv = -yv | |
| 7817 e1->type = type; | |
| 7818 e2->type = type; | |
| 7819 e = new NegExp(loc, this); | |
| 7820 e = e->semantic(sc); | |
| 7821 return e; | |
| 7822 } | |
| 7823 else | |
| 7824 type = t2; // t2 is complex | |
| 7825 } | |
| 7826 else if (t2->isimaginary()) | |
| 7827 { | |
| 7828 type = t1; // t1 is complex | |
| 7829 } | |
| 7830 } | |
| 7831 return this; | |
| 7832 } | |
| 7833 | |
| 7834 /************************************************************/ | |
| 7835 | |
| 7836 DivExp::DivExp(Loc loc, Expression *e1, Expression *e2) | |
| 7837 : BinExp(loc, TOKdiv, sizeof(DivExp), e1, e2) | |
| 7838 { | |
| 7839 } | |
| 7840 | |
| 7841 Expression *DivExp::semantic(Scope *sc) | |
| 7842 { Expression *e; | |
| 7843 | |
| 7844 if (type) | |
| 7845 return this; | |
| 7846 | |
| 7847 BinExp::semanticp(sc); | |
| 7848 e = op_overload(sc); | |
| 7849 if (e) | |
| 7850 return e; | |
| 7851 | |
| 7852 typeCombine(sc); | |
| 7853 e1->checkArithmetic(); | |
| 7854 e2->checkArithmetic(); | |
| 7855 if (type->isfloating()) | |
| 7856 { Type *t1 = e1->type; | |
| 7857 Type *t2 = e2->type; | |
| 7858 | |
| 7859 if (t1->isreal()) | |
| 7860 { | |
| 7861 type = t2; | |
| 7862 if (t2->isimaginary()) | |
| 7863 { Expression *e; | |
| 7864 | |
| 7865 // x/iv = i(-x/v) | |
| 7866 e2->type = t1; | |
| 7867 e = new NegExp(loc, this); | |
| 7868 e = e->semantic(sc); | |
| 7869 return e; | |
| 7870 } | |
| 7871 } | |
| 7872 else if (t2->isreal()) | |
| 7873 { | |
| 7874 type = t1; | |
| 7875 } | |
| 7876 else if (t1->isimaginary()) | |
| 7877 { | |
| 7878 if (t2->isimaginary()) | |
| 7879 { | |
| 7880 switch (t1->ty) | |
| 7881 { | |
| 7882 case Timaginary32: type = Type::tfloat32; break; | |
| 7883 case Timaginary64: type = Type::tfloat64; break; | |
| 7884 case Timaginary80: type = Type::tfloat80; break; | |
| 7885 default: assert(0); | |
| 7886 } | |
| 7887 } | |
| 7888 else | |
| 7889 type = t2; // t2 is complex | |
| 7890 } | |
| 7891 else if (t2->isimaginary()) | |
| 7892 { | |
| 7893 type = t1; // t1 is complex | |
| 7894 } | |
| 7895 } | |
| 7896 return this; | |
| 7897 } | |
| 7898 | |
| 7899 /************************************************************/ | |
| 7900 | |
| 7901 ModExp::ModExp(Loc loc, Expression *e1, Expression *e2) | |
| 7902 : BinExp(loc, TOKmod, sizeof(ModExp), e1, e2) | |
| 7903 { | |
| 7904 } | |
| 7905 | |
| 7906 Expression *ModExp::semantic(Scope *sc) | |
| 7907 { Expression *e; | |
| 7908 | |
| 7909 if (type) | |
| 7910 return this; | |
| 7911 | |
| 7912 BinExp::semanticp(sc); | |
| 7913 e = op_overload(sc); | |
| 7914 if (e) | |
| 7915 return e; | |
| 7916 | |
| 7917 typeCombine(sc); | |
| 7918 e1->checkArithmetic(); | |
| 7919 e2->checkArithmetic(); | |
| 7920 if (type->isfloating()) | |
| 7921 { type = e1->type; | |
| 7922 if (e2->type->iscomplex()) | |
| 7923 { error("cannot perform modulo complex arithmetic"); | |
| 7924 return new IntegerExp(0); | |
| 7925 } | |
| 7926 } | |
| 7927 return this; | |
| 7928 } | |
| 7929 | |
| 7930 /************************************************************/ | |
| 7931 | |
| 7932 ShlExp::ShlExp(Loc loc, Expression *e1, Expression *e2) | |
| 7933 : BinExp(loc, TOKshl, sizeof(ShlExp), e1, e2) | |
| 7934 { | |
| 7935 } | |
| 7936 | |
| 7937 Expression *ShlExp::semantic(Scope *sc) | |
| 7938 { Expression *e; | |
| 7939 | |
| 7940 //printf("ShlExp::semantic(), type = %p\n", type); | |
| 7941 if (!type) | |
| 7942 { BinExp::semanticp(sc); | |
| 7943 e = op_overload(sc); | |
| 7944 if (e) | |
| 7945 return e; | |
| 7946 e1 = e1->checkIntegral(); | |
| 7947 e2 = e2->checkIntegral(); | |
| 7948 e1 = e1->integralPromotions(sc); | |
| 42 | 7949 //e2 = e2->castTo(sc, Type::tshiftcnt); |
| 7950 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 1 | 7951 type = e1->type; |
| 7952 } | |
| 7953 return this; | |
| 7954 } | |
| 7955 | |
| 7956 /************************************************************/ | |
| 7957 | |
| 7958 ShrExp::ShrExp(Loc loc, Expression *e1, Expression *e2) | |
| 7959 : BinExp(loc, TOKshr, sizeof(ShrExp), e1, e2) | |
| 7960 { | |
| 7961 } | |
| 7962 | |
| 7963 Expression *ShrExp::semantic(Scope *sc) | |
| 7964 { Expression *e; | |
| 7965 | |
| 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 UshrExp::UshrExp(Loc loc, Expression *e1, Expression *e2) | |
| 7984 : BinExp(loc, TOKushr, sizeof(UshrExp), e1, e2) | |
| 7985 { | |
| 7986 } | |
| 7987 | |
| 7988 Expression *UshrExp::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 AndExp::AndExp(Loc loc, Expression *e1, Expression *e2) | |
| 8009 : BinExp(loc, TOKand, sizeof(AndExp), e1, e2) | |
| 8010 { | |
| 8011 } | |
| 8012 | |
| 8013 Expression *AndExp::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 if (e1->type->toBasetype()->ty == Tbool && | |
| 8022 e2->type->toBasetype()->ty == Tbool) | |
| 8023 { | |
| 8024 type = e1->type; | |
| 8025 e = this; | |
| 8026 } | |
| 8027 else | |
| 8028 { | |
| 8029 typeCombine(sc); | |
| 8030 e1->checkIntegral(); | |
| 8031 e2->checkIntegral(); | |
| 8032 } | |
| 8033 } | |
| 8034 return this; | |
| 8035 } | |
| 8036 | |
| 8037 /************************************************************/ | |
| 8038 | |
| 8039 OrExp::OrExp(Loc loc, Expression *e1, Expression *e2) | |
| 8040 : BinExp(loc, TOKor, sizeof(OrExp), e1, e2) | |
| 8041 { | |
| 8042 } | |
| 8043 | |
| 8044 Expression *OrExp::semantic(Scope *sc) | |
| 8045 { Expression *e; | |
| 8046 | |
| 8047 if (!type) | |
| 8048 { BinExp::semanticp(sc); | |
| 8049 e = op_overload(sc); | |
| 8050 if (e) | |
| 8051 return e; | |
| 8052 if (e1->type->toBasetype()->ty == Tbool && | |
| 8053 e2->type->toBasetype()->ty == Tbool) | |
| 8054 { | |
| 8055 type = e1->type; | |
| 8056 e = this; | |
| 8057 } | |
| 8058 else | |
| 8059 { | |
| 8060 typeCombine(sc); | |
| 8061 e1->checkIntegral(); | |
| 8062 e2->checkIntegral(); | |
| 8063 } | |
| 8064 } | |
| 8065 return this; | |
| 8066 } | |
| 8067 | |
| 8068 /************************************************************/ | |
| 8069 | |
| 8070 XorExp::XorExp(Loc loc, Expression *e1, Expression *e2) | |
| 8071 : BinExp(loc, TOKxor, sizeof(XorExp), e1, e2) | |
| 8072 { | |
| 8073 } | |
| 8074 | |
| 8075 Expression *XorExp::semantic(Scope *sc) | |
| 8076 { Expression *e; | |
| 8077 | |
| 8078 if (!type) | |
| 8079 { BinExp::semanticp(sc); | |
| 8080 e = op_overload(sc); | |
| 8081 if (e) | |
| 8082 return e; | |
| 8083 if (e1->type->toBasetype()->ty == Tbool && | |
| 8084 e2->type->toBasetype()->ty == Tbool) | |
| 8085 { | |
| 8086 type = e1->type; | |
| 8087 e = this; | |
| 8088 } | |
| 8089 else | |
| 8090 { | |
| 8091 typeCombine(sc); | |
| 8092 e1->checkIntegral(); | |
| 8093 e2->checkIntegral(); | |
| 8094 } | |
| 8095 } | |
| 8096 return this; | |
| 8097 } | |
| 8098 | |
| 8099 | |
| 8100 /************************************************************/ | |
| 8101 | |
| 8102 OrOrExp::OrOrExp(Loc loc, Expression *e1, Expression *e2) | |
| 8103 : BinExp(loc, TOKoror, sizeof(OrOrExp), e1, e2) | |
| 8104 { | |
| 8105 } | |
| 8106 | |
| 8107 Expression *OrOrExp::semantic(Scope *sc) | |
| 8108 { | |
| 8109 unsigned cs1; | |
| 8110 | |
| 8111 // same as for AndAnd | |
| 8112 e1 = e1->semantic(sc); | |
| 8113 e1 = resolveProperties(sc, e1); | |
| 8114 e1 = e1->checkToPointer(); | |
| 8115 e1 = e1->checkToBoolean(); | |
| 8116 cs1 = sc->callSuper; | |
| 8117 | |
| 8118 if (sc->flags & SCOPEstaticif) | |
| 8119 { | |
| 8120 /* If in static if, don't evaluate e2 if we don't have to. | |
| 8121 */ | |
| 8122 e1 = e1->optimize(WANTflags); | |
| 8123 if (e1->isBool(TRUE)) | |
| 8124 { | |
| 8125 return new IntegerExp(loc, 1, Type::tboolean); | |
| 8126 } | |
| 8127 } | |
| 8128 | |
| 8129 e2 = e2->semantic(sc); | |
| 8130 sc->mergeCallSuper(loc, cs1); | |
| 8131 e2 = resolveProperties(sc, e2); | |
| 8132 e2 = e2->checkToPointer(); | |
| 8133 | |
| 8134 type = Type::tboolean; | |
| 8135 if (e1->type->ty == Tvoid) | |
| 8136 type = Type::tvoid; | |
| 8137 if (e2->op == TOKtype || e2->op == TOKimport) | |
| 8138 error("%s is not an expression", e2->toChars()); | |
| 8139 return this; | |
| 8140 } | |
| 8141 | |
| 8142 Expression *OrOrExp::checkToBoolean() | |
| 8143 { | |
| 8144 e2 = e2->checkToBoolean(); | |
| 8145 return this; | |
| 8146 } | |
| 8147 | |
| 8148 int OrOrExp::isBit() | |
| 8149 { | |
| 8150 return TRUE; | |
| 8151 } | |
| 8152 | |
| 8153 int OrOrExp::checkSideEffect(int flag) | |
| 8154 { | |
| 8155 if (flag == 2) | |
| 8156 { | |
| 8157 return e1->checkSideEffect(2) || e2->checkSideEffect(2); | |
| 8158 } | |
| 8159 else | |
| 8160 { e1->checkSideEffect(1); | |
| 8161 return e2->checkSideEffect(flag); | |
| 8162 } | |
| 8163 } | |
| 8164 | |
| 8165 /************************************************************/ | |
| 8166 | |
| 8167 AndAndExp::AndAndExp(Loc loc, Expression *e1, Expression *e2) | |
| 8168 : BinExp(loc, TOKandand, sizeof(AndAndExp), e1, e2) | |
| 8169 { | |
| 8170 } | |
| 8171 | |
| 8172 Expression *AndAndExp::semantic(Scope *sc) | |
| 8173 { | |
| 8174 unsigned cs1; | |
| 8175 | |
| 8176 // same as for OrOr | |
| 8177 e1 = e1->semantic(sc); | |
| 8178 e1 = resolveProperties(sc, e1); | |
| 8179 e1 = e1->checkToPointer(); | |
| 8180 e1 = e1->checkToBoolean(); | |
| 8181 cs1 = sc->callSuper; | |
| 8182 | |
| 8183 if (sc->flags & SCOPEstaticif) | |
| 8184 { | |
| 8185 /* If in static if, don't evaluate e2 if we don't have to. | |
| 8186 */ | |
| 8187 e1 = e1->optimize(WANTflags); | |
| 8188 if (e1->isBool(FALSE)) | |
| 8189 { | |
| 8190 return new IntegerExp(loc, 0, Type::tboolean); | |
| 8191 } | |
| 8192 } | |
| 8193 | |
| 8194 e2 = e2->semantic(sc); | |
| 8195 sc->mergeCallSuper(loc, cs1); | |
| 8196 e2 = resolveProperties(sc, e2); | |
| 8197 e2 = e2->checkToPointer(); | |
| 8198 | |
| 8199 type = Type::tboolean; | |
| 8200 if (e1->type->ty == Tvoid) | |
| 8201 type = Type::tvoid; | |
| 8202 if (e2->op == TOKtype || e2->op == TOKimport) | |
| 8203 error("%s is not an expression", e2->toChars()); | |
| 8204 return this; | |
| 8205 } | |
| 8206 | |
| 8207 Expression *AndAndExp::checkToBoolean() | |
| 8208 { | |
| 8209 e2 = e2->checkToBoolean(); | |
| 8210 return this; | |
| 8211 } | |
| 8212 | |
| 8213 int AndAndExp::isBit() | |
| 8214 { | |
| 8215 return TRUE; | |
| 8216 } | |
| 8217 | |
| 8218 int AndAndExp::checkSideEffect(int flag) | |
| 8219 { | |
| 8220 if (flag == 2) | |
| 8221 { | |
| 8222 return e1->checkSideEffect(2) || e2->checkSideEffect(2); | |
| 8223 } | |
| 8224 else | |
| 8225 { | |
| 8226 e1->checkSideEffect(1); | |
| 8227 return e2->checkSideEffect(flag); | |
| 8228 } | |
| 8229 } | |
| 8230 | |
| 8231 /************************************************************/ | |
| 8232 | |
| 8233 InExp::InExp(Loc loc, Expression *e1, Expression *e2) | |
| 8234 : BinExp(loc, TOKin, sizeof(InExp), e1, e2) | |
| 8235 { | |
| 8236 } | |
| 8237 | |
| 8238 Expression *InExp::semantic(Scope *sc) | |
| 8239 { Expression *e; | |
| 8240 | |
| 8241 if (type) | |
| 8242 return this; | |
| 8243 | |
| 8244 BinExp::semanticp(sc); | |
| 8245 e = op_overload(sc); | |
| 8246 if (e) | |
| 8247 return e; | |
| 8248 | |
| 8249 //type = Type::tboolean; | |
| 8250 Type *t2b = e2->type->toBasetype(); | |
| 8251 if (t2b->ty != Taarray) | |
| 8252 { | |
| 8253 error("rvalue of in expression must be an associative array, not %s", e2->type->toChars()); | |
| 8254 type = Type::terror; | |
| 8255 } | |
| 8256 else | |
| 8257 { | |
| 8258 TypeAArray *ta = (TypeAArray *)t2b; | |
| 8259 | |
| 8260 // Convert key to type of key | |
| 8261 e1 = e1->implicitCastTo(sc, ta->index); | |
| 8262 | |
| 8263 // Return type is pointer to value | |
| 8264 type = ta->next->pointerTo(); | |
| 8265 } | |
| 8266 return this; | |
| 8267 } | |
| 8268 | |
| 8269 int InExp::isBit() | |
| 8270 { | |
| 8271 return FALSE; | |
| 8272 } | |
| 8273 | |
| 8274 | |
| 8275 /************************************************************/ | |
| 8276 | |
| 8277 /* This deletes the key e1 from the associative array e2 | |
| 8278 */ | |
| 8279 | |
| 8280 RemoveExp::RemoveExp(Loc loc, Expression *e1, Expression *e2) | |
| 8281 : BinExp(loc, TOKremove, sizeof(RemoveExp), e1, e2) | |
| 8282 { | |
| 8283 type = Type::tvoid; | |
| 8284 } | |
| 8285 | |
| 8286 /************************************************************/ | |
| 8287 | |
| 8288 CmpExp::CmpExp(enum TOK op, Loc loc, Expression *e1, Expression *e2) | |
| 8289 : BinExp(loc, op, sizeof(CmpExp), e1, e2) | |
| 8290 { | |
| 8291 } | |
| 8292 | |
| 8293 Expression *CmpExp::semantic(Scope *sc) | |
| 8294 { Expression *e; | |
| 8295 Type *t1; | |
| 8296 Type *t2; | |
| 8297 | |
| 8298 #if LOGSEMANTIC | |
| 8299 printf("CmpExp::semantic('%s')\n", toChars()); | |
| 8300 #endif | |
| 8301 if (type) | |
| 8302 return this; | |
| 8303 | |
| 8304 BinExp::semanticp(sc); | |
| 8305 e = op_overload(sc); | |
| 8306 if (e) | |
| 8307 { | |
| 8308 e = new CmpExp(op, loc, e, new IntegerExp(loc, 0, Type::tint32)); | |
| 8309 e = e->semantic(sc); | |
| 8310 return e; | |
| 8311 } | |
| 8312 | |
| 8313 typeCombine(sc); | |
| 8314 type = Type::tboolean; | |
| 8315 | |
| 8316 // Special handling for array comparisons | |
| 8317 t1 = e1->type->toBasetype(); | |
| 8318 t2 = e2->type->toBasetype(); | |
| 8319 if ((t1->ty == Tarray || t1->ty == Tsarray) && | |
| 8320 (t2->ty == Tarray || t2->ty == Tsarray)) | |
| 8321 { | |
| 8322 if (!t1->next->equals(t2->next)) | |
| 8323 error("array comparison type mismatch, %s vs %s", t1->next->toChars(), t2->next->toChars()); | |
| 8324 e = this; | |
| 8325 } | |
| 8326 else if (t1->ty == Tstruct || t2->ty == Tstruct || | |
| 8327 (t1->ty == Tclass && t2->ty == Tclass)) | |
| 8328 { | |
| 8329 if (t2->ty == Tstruct) | |
| 8330 error("need member function opCmp() for %s %s to compare", t2->toDsymbol(sc)->kind(), t2->toChars()); | |
| 8331 else | |
| 8332 error("need member function opCmp() for %s %s to compare", t1->toDsymbol(sc)->kind(), t1->toChars()); | |
| 8333 e = this; | |
| 8334 } | |
| 8335 #if 1 | |
| 8336 else if (t1->iscomplex() || t2->iscomplex()) | |
| 8337 { | |
| 8338 error("compare not defined for complex operands"); | |
| 8339 e = new IntegerExp(0); | |
| 8340 } | |
| 8341 #endif | |
| 8342 else | |
| 8343 e = this; | |
| 8344 return e; | |
| 8345 } | |
| 8346 | |
| 8347 int CmpExp::isBit() | |
| 8348 { | |
| 8349 return TRUE; | |
| 8350 } | |
| 8351 | |
| 8352 | |
| 8353 /************************************************************/ | |
| 8354 | |
| 8355 EqualExp::EqualExp(enum TOK op, Loc loc, Expression *e1, Expression *e2) | |
| 8356 : BinExp(loc, op, sizeof(EqualExp), e1, e2) | |
| 8357 { | |
| 8358 } | |
| 8359 | |
| 8360 Expression *EqualExp::semantic(Scope *sc) | |
| 8361 { Expression *e; | |
| 8362 Type *t1; | |
| 8363 Type *t2; | |
| 8364 | |
| 8365 //printf("EqualExp::semantic('%s')\n", toChars()); | |
| 8366 if (type) | |
| 8367 return this; | |
| 8368 | |
| 8369 BinExp::semanticp(sc); | |
| 8370 | |
| 8371 /* Before checking for operator overloading, check to see if we're | |
| 8372 * comparing the addresses of two statics. If so, we can just see | |
| 8373 * if they are the same symbol. | |
| 8374 */ | |
| 8375 if (e1->op == TOKaddress && e2->op == TOKaddress) | |
| 8376 { AddrExp *ae1 = (AddrExp *)e1; | |
| 8377 AddrExp *ae2 = (AddrExp *)e2; | |
| 8378 | |
| 8379 if (ae1->e1->op == TOKvar && ae2->e1->op == TOKvar) | |
| 8380 { VarExp *ve1 = (VarExp *)ae1->e1; | |
| 8381 VarExp *ve2 = (VarExp *)ae2->e1; | |
| 8382 | |
| 8383 if (ve1->var == ve2->var /*|| ve1->var->toSymbol() == ve2->var->toSymbol()*/) | |
| 8384 { | |
| 8385 // They are the same, result is 'true' for ==, 'false' for != | |
| 8386 e = new IntegerExp(loc, (op == TOKequal), Type::tboolean); | |
| 8387 return e; | |
| 8388 } | |
| 8389 } | |
| 8390 } | |
| 8391 | |
| 8392 //if (e2->op != TOKnull) | |
| 8393 { | |
| 8394 e = op_overload(sc); | |
| 8395 if (e) | |
| 8396 { | |
| 8397 if (op == TOKnotequal) | |
| 8398 { | |
| 8399 e = new NotExp(e->loc, e); | |
| 8400 e = e->semantic(sc); | |
| 8401 } | |
| 8402 return e; | |
| 8403 } | |
| 8404 } | |
| 8405 | |
| 8406 e = typeCombine(sc); | |
| 8407 type = Type::tboolean; | |
| 8408 | |
| 8409 // Special handling for array comparisons | |
| 8410 t1 = e1->type->toBasetype(); | |
| 8411 t2 = e2->type->toBasetype(); | |
| 8412 if ((t1->ty == Tarray || t1->ty == Tsarray) && | |
| 8413 (t2->ty == Tarray || t2->ty == Tsarray)) | |
| 8414 { | |
| 8415 if (!t1->next->equals(t2->next)) | |
| 8416 error("array comparison type mismatch, %s vs %s", t1->next->toChars(), t2->next->toChars()); | |
| 8417 } | |
| 8418 else | |
| 8419 { | |
| 8420 if (e1->type != e2->type && e1->type->isfloating() && e2->type->isfloating()) | |
| 8421 { | |
| 8422 // Cast both to complex | |
| 8423 e1 = e1->castTo(sc, Type::tcomplex80); | |
| 8424 e2 = e2->castTo(sc, Type::tcomplex80); | |
| 8425 } | |
| 8426 } | |
| 8427 return e; | |
| 8428 } | |
| 8429 | |
| 8430 int EqualExp::isBit() | |
| 8431 { | |
| 8432 return TRUE; | |
| 8433 } | |
| 8434 | |
| 8435 | |
| 8436 | |
| 8437 /************************************************************/ | |
| 8438 | |
| 8439 IdentityExp::IdentityExp(enum TOK op, Loc loc, Expression *e1, Expression *e2) | |
| 8440 : BinExp(loc, op, sizeof(IdentityExp), e1, e2) | |
| 8441 { | |
| 8442 } | |
| 8443 | |
| 8444 Expression *IdentityExp::semantic(Scope *sc) | |
| 8445 { | |
| 8446 if (type) | |
| 8447 return this; | |
| 8448 | |
| 8449 BinExp::semanticp(sc); | |
| 8450 type = Type::tboolean; | |
| 8451 typeCombine(sc); | |
| 8452 if (e1->type != e2->type && e1->type->isfloating() && e2->type->isfloating()) | |
| 8453 { | |
| 8454 // Cast both to complex | |
| 8455 e1 = e1->castTo(sc, Type::tcomplex80); | |
| 8456 e2 = e2->castTo(sc, Type::tcomplex80); | |
| 8457 } | |
| 8458 return this; | |
| 8459 } | |
| 8460 | |
| 8461 int IdentityExp::isBit() | |
| 8462 { | |
| 8463 return TRUE; | |
| 8464 } | |
| 8465 | |
| 8466 | |
| 8467 /****************************************************************/ | |
| 8468 | |
| 8469 CondExp::CondExp(Loc loc, Expression *econd, Expression *e1, Expression *e2) | |
| 8470 : BinExp(loc, TOKquestion, sizeof(CondExp), e1, e2) | |
| 8471 { | |
| 8472 this->econd = econd; | |
| 8473 } | |
| 8474 | |
| 8475 Expression *CondExp::syntaxCopy() | |
| 8476 { | |
| 8477 return new CondExp(loc, econd->syntaxCopy(), e1->syntaxCopy(), e2->syntaxCopy()); | |
| 8478 } | |
| 8479 | |
| 8480 | |
| 8481 Expression *CondExp::semantic(Scope *sc) | |
| 8482 { Type *t1; | |
| 8483 Type *t2; | |
| 8484 unsigned cs0; | |
| 8485 unsigned cs1; | |
| 8486 | |
| 8487 #if LOGSEMANTIC | |
| 8488 printf("CondExp::semantic('%s')\n", toChars()); | |
| 8489 #endif | |
| 8490 if (type) | |
| 8491 return this; | |
| 8492 | |
| 8493 econd = econd->semantic(sc); | |
| 8494 econd = resolveProperties(sc, econd); | |
| 8495 econd = econd->checkToPointer(); | |
| 8496 econd = econd->checkToBoolean(); | |
| 8497 | |
| 8498 #if 0 /* this cannot work right because the types of e1 and e2 | |
| 8499 * both contribute to the type of the result. | |
| 8500 */ | |
| 8501 if (sc->flags & SCOPEstaticif) | |
| 8502 { | |
| 8503 /* If in static if, don't evaluate what we don't have to. | |
| 8504 */ | |
| 8505 econd = econd->optimize(WANTflags); | |
| 8506 if (econd->isBool(TRUE)) | |
| 8507 { | |
| 8508 e1 = e1->semantic(sc); | |
| 8509 e1 = resolveProperties(sc, e1); | |
| 8510 return e1; | |
| 8511 } | |
| 8512 else if (econd->isBool(FALSE)) | |
| 8513 { | |
| 8514 e2 = e2->semantic(sc); | |
| 8515 e2 = resolveProperties(sc, e2); | |
| 8516 return e2; | |
| 8517 } | |
| 8518 } | |
| 8519 #endif | |
| 8520 | |
| 8521 | |
| 8522 cs0 = sc->callSuper; | |
| 8523 e1 = e1->semantic(sc); | |
| 8524 e1 = resolveProperties(sc, e1); | |
| 8525 cs1 = sc->callSuper; | |
| 8526 sc->callSuper = cs0; | |
| 8527 e2 = e2->semantic(sc); | |
| 8528 e2 = resolveProperties(sc, e2); | |
| 8529 sc->mergeCallSuper(loc, cs1); | |
| 8530 | |
| 8531 | |
| 8532 // If either operand is void, the result is void | |
| 8533 t1 = e1->type; | |
| 8534 t2 = e2->type; | |
| 8535 if (t1->ty == Tvoid || t2->ty == Tvoid) | |
| 8536 type = Type::tvoid; | |
| 8537 else if (t1 == t2) | |
| 8538 type = t1; | |
| 8539 else | |
| 8540 { | |
| 8541 typeCombine(sc); | |
| 8542 switch (e1->type->toBasetype()->ty) | |
| 8543 { | |
| 8544 case Tcomplex32: | |
| 8545 case Tcomplex64: | |
| 8546 case Tcomplex80: | |
| 8547 e2 = e2->castTo(sc, e1->type); | |
| 8548 break; | |
| 8549 } | |
| 8550 switch (e2->type->toBasetype()->ty) | |
| 8551 { | |
| 8552 case Tcomplex32: | |
| 8553 case Tcomplex64: | |
| 8554 case Tcomplex80: | |
| 8555 e1 = e1->castTo(sc, e2->type); | |
| 8556 break; | |
| 8557 } | |
| 8558 } | |
| 8559 return this; | |
| 8560 } | |
| 8561 | |
| 8562 Expression *CondExp::toLvalue(Scope *sc, Expression *ex) | |
| 8563 { | |
| 8564 PtrExp *e; | |
| 8565 | |
| 8566 // convert (econd ? e1 : e2) to *(econd ? &e1 : &e2) | |
| 8567 e = new PtrExp(loc, this, type); | |
| 8568 | |
| 8569 e1 = e1->addressOf(sc); | |
| 8570 //e1 = e1->toLvalue(sc, NULL); | |
| 8571 | |
| 8572 e2 = e2->addressOf(sc); | |
| 8573 //e2 = e2->toLvalue(sc, NULL); | |
| 8574 | |
| 8575 typeCombine(sc); | |
| 8576 | |
| 8577 type = e2->type; | |
| 8578 return e; | |
| 8579 } | |
| 8580 | |
| 8581 Expression *CondExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 8582 { | |
| 8583 error("conditional expression %s is not a modifiable lvalue", toChars()); | |
| 8584 return this; | |
| 8585 } | |
| 8586 | |
| 8587 void CondExp::checkEscape() | |
| 8588 { | |
| 8589 e1->checkEscape(); | |
| 8590 e2->checkEscape(); | |
| 8591 } | |
| 8592 | |
| 8593 | |
| 8594 Expression *CondExp::checkToBoolean() | |
| 8595 { | |
| 8596 e1 = e1->checkToBoolean(); | |
| 8597 e2 = e2->checkToBoolean(); | |
| 8598 return this; | |
| 8599 } | |
| 8600 | |
| 8601 int CondExp::checkSideEffect(int flag) | |
| 8602 { | |
| 8603 if (flag == 2) | |
| 8604 { | |
| 8605 return econd->checkSideEffect(2) || | |
| 8606 e1->checkSideEffect(2) || | |
| 8607 e2->checkSideEffect(2); | |
| 8608 } | |
| 8609 else | |
| 8610 { | |
| 8611 econd->checkSideEffect(1); | |
| 8612 e1->checkSideEffect(flag); | |
| 8613 return e2->checkSideEffect(flag); | |
| 8614 } | |
| 8615 } | |
| 8616 | |
| 8617 void CondExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 8618 { | |
| 8619 expToCBuffer(buf, hgs, econd, PREC_oror); | |
| 8620 buf->writestring(" ? "); | |
| 8621 expToCBuffer(buf, hgs, e1, PREC_expr); | |
| 8622 buf->writestring(" : "); | |
| 8623 expToCBuffer(buf, hgs, e2, PREC_cond); | |
| 8624 } | |
| 8625 | |
| 8626 |