Mercurial > projects > ldc
annotate dmd/expression.c @ 54:28e99b04a132 trunk
[svn r58] Fixed cond expression resulting in a non-basic type.
Fixed identity expression for dynamic arrays.
Revamped the system to keep track of lvalues and rvalues and their relations.
Typedef declaration now generate the custom typeinfo.
Other bugfixes.
| author | lindquist |
|---|---|
| date | Wed, 24 Oct 2007 01:37:34 +0200 |
| parents | 0b9b286b67b6 |
| children | a9d29e9f1fed |
| 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 | |
| 583 // If D linkage and variadic, add _arguments[] as first argument | |
| 584 if (tf->linkage == LINKd && tf->varargs == 1) | |
| 585 { | |
| 586 Expression *e; | |
| 587 | |
| 588 e = createTypeInfoArray(sc, (Expression **)&arguments->data[nparams], | |
| 589 arguments->dim - nparams); | |
| 590 arguments->insert(0, e); | |
| 591 } | |
| 592 } | |
| 593 | |
| 594 /************************************************** | |
| 595 * Write expression out to buf, but wrap it | |
| 596 * in ( ) if its precedence is less than pr. | |
| 597 */ | |
| 598 | |
| 599 void expToCBuffer(OutBuffer *buf, HdrGenState *hgs, Expression *e, enum PREC pr) | |
| 600 { | |
| 601 if (precedence[e->op] < pr) | |
| 602 { | |
| 603 buf->writeByte('('); | |
| 604 e->toCBuffer(buf, hgs); | |
| 605 buf->writeByte(')'); | |
| 606 } | |
| 607 else | |
| 608 e->toCBuffer(buf, hgs); | |
| 609 } | |
| 610 | |
| 611 /************************************************** | |
| 612 * Write out argument list to buf. | |
| 613 */ | |
| 614 | |
| 615 void argsToCBuffer(OutBuffer *buf, Expressions *arguments, HdrGenState *hgs) | |
| 616 { | |
| 617 if (arguments) | |
| 618 { | |
| 619 for (size_t i = 0; i < arguments->dim; i++) | |
| 620 { Expression *arg = (Expression *)arguments->data[i]; | |
| 621 | |
| 19 | 622 if (arg) |
| 623 { if (i) | |
| 624 buf->writeByte(','); | |
| 625 expToCBuffer(buf, hgs, arg, PREC_assign); | |
| 626 } | |
| 1 | 627 } |
| 628 } | |
| 629 } | |
| 630 | |
| 631 /************************************************** | |
| 632 * Write out argument types to buf. | |
| 633 */ | |
| 634 | |
| 635 void argExpTypesToCBuffer(OutBuffer *buf, Expressions *arguments, HdrGenState *hgs) | |
| 636 { | |
| 637 if (arguments) | |
| 638 { OutBuffer argbuf; | |
| 639 | |
| 640 for (size_t i = 0; i < arguments->dim; i++) | |
| 641 { Expression *arg = (Expression *)arguments->data[i]; | |
| 642 | |
| 643 if (i) | |
| 644 buf->writeByte(','); | |
| 645 argbuf.reset(); | |
| 646 arg->type->toCBuffer2(&argbuf, NULL, hgs); | |
| 647 buf->write(&argbuf); | |
| 648 } | |
| 649 } | |
| 650 } | |
| 651 | |
| 652 /******************************** Expression **************************/ | |
| 653 | |
| 654 Expression::Expression(Loc loc, enum TOK op, int size) | |
| 655 : loc(loc) | |
| 656 { | |
| 657 this->loc = loc; | |
| 658 this->op = op; | |
| 659 this->size = size; | |
| 660 type = NULL; | |
| 661 } | |
| 662 | |
| 663 Expression *Expression::syntaxCopy() | |
| 664 { | |
| 665 //printf("Expression::syntaxCopy()\n"); | |
| 666 //dump(0); | |
| 667 return copy(); | |
| 668 } | |
| 669 | |
| 670 /********************************* | |
| 671 * Does *not* do a deep copy. | |
| 672 */ | |
| 673 | |
| 674 Expression *Expression::copy() | |
| 675 { | |
| 676 Expression *e; | |
| 677 if (!size) | |
| 678 { | |
| 679 #ifdef DEBUG | |
| 680 fprintf(stdmsg, "No expression copy for: %s\n", toChars()); | |
| 681 printf("op = %d\n", op); | |
| 682 dump(0); | |
| 683 #endif | |
| 684 assert(0); | |
| 685 } | |
| 686 e = (Expression *)mem.malloc(size); | |
| 687 return (Expression *)memcpy(e, this, size); | |
| 688 } | |
| 689 | |
| 690 /************************** | |
| 691 * Semantically analyze Expression. | |
| 692 * Determine types, fold constants, etc. | |
| 693 */ | |
| 694 | |
| 695 Expression *Expression::semantic(Scope *sc) | |
| 696 { | |
| 697 #if LOGSEMANTIC | |
| 698 printf("Expression::semantic()\n"); | |
| 699 #endif | |
| 700 if (type) | |
| 701 type = type->semantic(loc, sc); | |
| 702 else | |
| 703 type = Type::tvoid; | |
| 704 return this; | |
| 705 } | |
| 706 | |
| 707 void Expression::print() | |
| 708 { | |
| 709 fprintf(stdmsg, "%s\n", toChars()); | |
| 710 fflush(stdmsg); | |
| 711 } | |
| 712 | |
| 713 char *Expression::toChars() | |
| 714 { OutBuffer *buf; | |
| 715 HdrGenState hgs; | |
| 716 | |
| 717 memset(&hgs, 0, sizeof(hgs)); | |
| 718 buf = new OutBuffer(); | |
| 719 toCBuffer(buf, &hgs); | |
| 720 return buf->toChars(); | |
| 721 } | |
| 722 | |
| 723 void Expression::error(const char *format, ...) | |
| 724 { | |
| 725 va_list ap; | |
| 726 va_start(ap, format); | |
| 727 ::verror(loc, format, ap); | |
| 728 va_end( ap ); | |
| 729 } | |
| 730 | |
| 731 void Expression::rvalue() | |
| 732 { | |
| 733 if (type && type->toBasetype()->ty == Tvoid) | |
| 734 { error("expression %s is void and has no value", toChars()); | |
| 735 #if 0 | |
| 736 dump(0); | |
| 737 halt(); | |
| 738 #endif | |
| 739 } | |
| 740 } | |
| 741 | |
| 742 Expression *Expression::combine(Expression *e1, Expression *e2) | |
| 743 { | |
| 744 if (e1) | |
| 745 { | |
| 746 if (e2) | |
| 747 { | |
| 748 e1 = new CommaExp(e1->loc, e1, e2); | |
| 749 e1->type = e2->type; | |
| 750 } | |
| 751 } | |
| 752 else | |
| 753 e1 = e2; | |
| 754 return e1; | |
| 755 } | |
| 756 | |
| 757 integer_t Expression::toInteger() | |
| 758 { | |
| 759 //printf("Expression %s\n", Token::toChars(op)); | |
| 760 error("Integer constant expression expected instead of %s", toChars()); | |
| 761 return 0; | |
| 762 } | |
| 763 | |
| 764 uinteger_t Expression::toUInteger() | |
| 765 { | |
| 766 //printf("Expression %s\n", Token::toChars(op)); | |
| 767 return (uinteger_t)toInteger(); | |
| 768 } | |
| 769 | |
| 770 real_t Expression::toReal() | |
| 771 { | |
| 772 error("Floating point constant expression expected instead of %s", toChars()); | |
| 773 return 0; | |
| 774 } | |
| 775 | |
| 776 real_t Expression::toImaginary() | |
| 777 { | |
| 778 error("Floating point constant expression expected instead of %s", toChars()); | |
| 779 return 0; | |
| 780 } | |
| 781 | |
| 782 complex_t Expression::toComplex() | |
| 783 { | |
| 784 error("Floating point constant expression expected instead of %s", toChars()); | |
| 785 #ifdef IN_GCC | |
| 786 return complex_t(real_t(0)); // %% nicer | |
| 787 #else | |
| 788 return 0; | |
| 789 #endif | |
| 790 } | |
| 791 | |
| 792 void Expression::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 793 { | |
| 794 buf->writestring(Token::toChars(op)); | |
| 795 } | |
| 796 | |
| 797 void Expression::toMangleBuffer(OutBuffer *buf) | |
| 798 { | |
| 799 error("expression %s is not a valid template value argument", toChars()); | |
| 800 } | |
| 801 | |
| 802 /******************************* | |
| 803 * Give error if we're not an lvalue. | |
| 804 * If we can, convert expression to be an lvalue. | |
| 805 */ | |
| 806 | |
| 807 Expression *Expression::toLvalue(Scope *sc, Expression *e) | |
| 808 { | |
| 809 if (!e) | |
| 810 e = this; | |
| 811 else if (!loc.filename) | |
| 812 loc = e->loc; | |
| 813 error("%s is not an lvalue", e->toChars()); | |
| 814 return this; | |
| 815 } | |
| 816 | |
| 817 Expression *Expression::modifiableLvalue(Scope *sc, Expression *e) | |
| 818 { | |
| 819 // See if this expression is a modifiable lvalue (i.e. not const) | |
| 820 return toLvalue(sc, e); | |
| 821 } | |
| 822 | |
| 823 /************************************ | |
| 824 * Detect cases where pointers to the stack can 'escape' the | |
| 825 * lifetime of the stack frame. | |
| 826 */ | |
| 827 | |
| 828 void Expression::checkEscape() | |
| 829 { | |
| 830 } | |
| 831 | |
| 832 void Expression::checkScalar() | |
| 833 { | |
| 834 if (!type->isscalar()) | |
| 835 error("'%s' is not a scalar, it is a %s", toChars(), type->toChars()); | |
| 836 } | |
| 837 | |
| 838 void Expression::checkNoBool() | |
| 839 { | |
| 840 if (type->toBasetype()->ty == Tbool) | |
| 841 error("operation not allowed on bool '%s'", toChars()); | |
| 842 } | |
| 843 | |
| 844 Expression *Expression::checkIntegral() | |
| 845 { | |
| 846 if (!type->isintegral()) | |
| 847 { error("'%s' is not of integral type, it is a %s", toChars(), type->toChars()); | |
| 848 return new IntegerExp(0); | |
| 849 } | |
| 850 return this; | |
| 851 } | |
| 852 | |
| 853 void Expression::checkArithmetic() | |
| 854 { | |
| 855 if (!type->isintegral() && !type->isfloating()) | |
| 856 error("'%s' is not an arithmetic type", toChars()); | |
| 857 } | |
| 858 | |
| 859 void Expression::checkDeprecated(Scope *sc, Dsymbol *s) | |
| 860 { | |
| 861 s->checkDeprecated(loc, sc); | |
| 862 } | |
| 863 | |
| 864 /******************************** | |
| 865 * Check for expressions that have no use. | |
| 866 * Input: | |
| 867 * flag 0 not going to use the result, so issue error message if no | |
| 868 * side effects | |
| 869 * 1 the result of the expression is used, but still check | |
| 870 * for useless subexpressions | |
| 871 * 2 do not issue error messages, just return !=0 if expression | |
| 872 * has side effects | |
| 873 */ | |
| 874 | |
| 875 int Expression::checkSideEffect(int flag) | |
| 876 { | |
| 877 if (flag == 0) | |
| 878 { if (op == TOKimport) | |
| 879 { | |
| 880 error("%s has no effect", toChars()); | |
| 881 } | |
| 882 else | |
| 883 error("%s has no effect in expression (%s)", | |
| 884 Token::toChars(op), toChars()); | |
| 885 } | |
| 886 return 0; | |
| 887 } | |
| 888 | |
| 889 /***************************** | |
| 890 * Check that expression can be tested for true or false. | |
| 891 */ | |
| 892 | |
| 893 Expression *Expression::checkToBoolean() | |
| 894 { | |
| 895 // Default is 'yes' - do nothing | |
| 896 | |
| 897 #ifdef DEBUG | |
| 898 if (!type) | |
| 899 dump(0); | |
| 900 #endif | |
| 901 | |
| 902 if (!type->checkBoolean()) | |
| 903 { | |
| 904 error("expression %s of type %s does not have a boolean value", toChars(), type->toChars()); | |
| 905 } | |
| 906 return this; | |
| 907 } | |
| 908 | |
| 909 /**************************** | |
| 910 */ | |
| 911 | |
| 912 Expression *Expression::checkToPointer() | |
| 913 { | |
| 914 Expression *e; | |
| 915 Type *tb; | |
| 916 | |
| 917 //printf("Expression::checkToPointer()\n"); | |
| 918 e = this; | |
| 919 | |
| 920 // If C static array, convert to pointer | |
| 921 tb = type->toBasetype(); | |
| 922 if (tb->ty == Tsarray) | |
| 923 { TypeSArray *ts = (TypeSArray *)tb; | |
| 924 if (ts->size(loc) == 0) | |
| 925 e = new NullExp(loc); | |
| 926 else | |
| 927 e = new AddrExp(loc, this); | |
| 928 e->type = tb->next->pointerTo(); | |
| 929 } | |
| 930 return e; | |
| 931 } | |
| 932 | |
| 933 /****************************** | |
| 934 * Take address of expression. | |
| 935 */ | |
| 936 | |
| 937 Expression *Expression::addressOf(Scope *sc) | |
| 938 { | |
| 939 Expression *e; | |
| 940 | |
| 941 //printf("Expression::addressOf()\n"); | |
| 942 e = toLvalue(sc, NULL); | |
| 943 e = new AddrExp(loc, e); | |
| 944 e->type = type->pointerTo(); | |
| 945 return e; | |
| 946 } | |
| 947 | |
| 948 /****************************** | |
| 949 * If this is a reference, dereference it. | |
| 950 */ | |
| 951 | |
| 952 Expression *Expression::deref() | |
| 953 { | |
| 954 //printf("Expression::deref()\n"); | |
| 955 if (type->ty == Treference) | |
| 956 { Expression *e; | |
| 957 | |
| 958 e = new PtrExp(loc, this); | |
| 959 e->type = type->next; | |
| 960 return e; | |
| 961 } | |
| 962 return this; | |
| 963 } | |
| 964 | |
| 965 /******************************** | |
| 966 * Does this expression statically evaluate to a boolean TRUE or FALSE? | |
| 967 */ | |
| 968 | |
| 969 int Expression::isBool(int result) | |
| 970 { | |
| 971 return FALSE; | |
| 972 } | |
| 973 | |
| 974 /******************************** | |
| 975 * Does this expression result in either a 1 or a 0? | |
| 976 */ | |
| 977 | |
| 978 int Expression::isBit() | |
| 979 { | |
| 980 return FALSE; | |
| 981 } | |
| 982 | |
| 983 Expressions *Expression::arraySyntaxCopy(Expressions *exps) | |
| 984 { Expressions *a = NULL; | |
| 985 | |
| 986 if (exps) | |
| 987 { | |
| 988 a = new Expressions(); | |
| 989 a->setDim(exps->dim); | |
| 990 for (int i = 0; i < a->dim; i++) | |
| 991 { Expression *e = (Expression *)exps->data[i]; | |
| 992 | |
| 993 e = e->syntaxCopy(); | |
| 994 a->data[i] = e; | |
| 995 } | |
| 996 } | |
| 997 return a; | |
| 998 } | |
| 999 | |
| 1000 /******************************** IntegerExp **************************/ | |
| 1001 | |
| 1002 IntegerExp::IntegerExp(Loc loc, integer_t value, Type *type) | |
| 1003 : Expression(loc, TOKint64, sizeof(IntegerExp)) | |
| 1004 { | |
| 1005 //printf("IntegerExp(value = %lld, type = '%s')\n", value, type ? type->toChars() : ""); | |
| 1006 if (type && !type->isscalar()) | |
| 1007 { | |
| 1008 error("integral constant must be scalar type, not %s", type->toChars()); | |
| 1009 type = Type::terror; | |
| 1010 } | |
| 1011 this->type = type; | |
| 1012 this->value = value; | |
| 1013 } | |
| 1014 | |
| 1015 IntegerExp::IntegerExp(integer_t value) | |
| 1016 : Expression(0, TOKint64, sizeof(IntegerExp)) | |
| 1017 { | |
| 1018 this->type = Type::tint32; | |
| 1019 this->value = value; | |
| 1020 } | |
| 1021 | |
| 1022 int IntegerExp::equals(Object *o) | |
| 1023 { IntegerExp *ne; | |
| 1024 | |
| 1025 if (this == o || | |
| 1026 (((Expression *)o)->op == TOKint64 && | |
| 1027 ((ne = (IntegerExp *)o), type->equals(ne->type)) && | |
| 1028 value == ne->value)) | |
| 1029 return 1; | |
| 1030 return 0; | |
| 1031 } | |
| 1032 | |
| 1033 char *IntegerExp::toChars() | |
| 1034 { | |
| 1035 #if 1 | |
| 1036 return Expression::toChars(); | |
| 1037 #else | |
| 1038 static char buffer[sizeof(value) * 3 + 1]; | |
| 1039 | |
| 1040 sprintf(buffer, "%jd", value); | |
| 1041 return buffer; | |
| 1042 #endif | |
| 1043 } | |
| 1044 | |
| 1045 integer_t IntegerExp::toInteger() | |
| 1046 { Type *t; | |
| 1047 | |
| 1048 t = type; | |
| 1049 while (t) | |
| 1050 { | |
| 1051 switch (t->ty) | |
| 1052 { | |
| 1053 case Tbit: | |
| 1054 case Tbool: value = (value != 0); break; | |
| 1055 case Tint8: value = (d_int8) value; break; | |
| 1056 case Tchar: | |
| 1057 case Tuns8: value = (d_uns8) value; break; | |
| 1058 case Tint16: value = (d_int16) value; break; | |
| 1059 case Twchar: | |
| 1060 case Tuns16: value = (d_uns16) value; break; | |
| 1061 case Tint32: value = (d_int32) value; break; | |
| 1062 case Tpointer: | |
| 1063 case Tdchar: | |
| 1064 case Tuns32: value = (d_uns32) value; break; | |
| 1065 case Tint64: value = (d_int64) value; break; | |
| 1066 case Tuns64: value = (d_uns64) value; break; | |
| 1067 | |
| 1068 case Tenum: | |
| 1069 { | |
| 1070 TypeEnum *te = (TypeEnum *)t; | |
| 1071 t = te->sym->memtype; | |
| 1072 continue; | |
| 1073 } | |
| 1074 | |
| 1075 case Ttypedef: | |
| 1076 { | |
| 1077 TypeTypedef *tt = (TypeTypedef *)t; | |
| 1078 t = tt->sym->basetype; | |
| 1079 continue; | |
| 1080 } | |
| 1081 | |
| 1082 default: | |
| 1083 print(); | |
| 1084 type->print(); | |
| 1085 assert(0); | |
| 1086 break; | |
| 1087 } | |
| 1088 break; | |
| 1089 } | |
| 1090 return value; | |
| 1091 } | |
| 1092 | |
| 1093 real_t IntegerExp::toReal() | |
| 1094 { | |
| 1095 Type *t; | |
| 1096 | |
| 1097 toInteger(); | |
| 1098 t = type->toBasetype(); | |
| 1099 if (t->ty == Tuns64) | |
| 1100 return (real_t)(d_uns64)value; | |
| 1101 else | |
| 1102 return (real_t)(d_int64)value; | |
| 1103 } | |
| 1104 | |
| 1105 real_t IntegerExp::toImaginary() | |
| 1106 { | |
| 1107 return (real_t) 0; | |
| 1108 } | |
| 1109 | |
| 1110 complex_t IntegerExp::toComplex() | |
| 1111 { | |
| 1112 return toReal(); | |
| 1113 } | |
| 1114 | |
| 1115 int IntegerExp::isBool(int result) | |
| 1116 { | |
| 1117 return result ? value != 0 : value == 0; | |
| 1118 } | |
| 1119 | |
| 1120 Expression *IntegerExp::semantic(Scope *sc) | |
| 1121 { | |
| 1122 if (!type) | |
| 1123 { | |
| 1124 // Determine what the type of this number is | |
| 1125 integer_t number = value; | |
| 1126 | |
| 1127 if (number & 0x8000000000000000LL) | |
| 1128 type = Type::tuns64; | |
| 1129 else if (number & 0xFFFFFFFF80000000LL) | |
| 1130 type = Type::tint64; | |
| 1131 else | |
| 1132 type = Type::tint32; | |
| 1133 } | |
| 1134 else | |
| 1135 { type = type->semantic(loc, sc); | |
| 1136 } | |
| 1137 return this; | |
| 1138 } | |
| 1139 | |
| 1140 Expression *IntegerExp::toLvalue(Scope *sc, Expression *e) | |
| 1141 { | |
| 1142 if (!e) | |
| 1143 e = this; | |
| 1144 else if (!loc.filename) | |
| 1145 loc = e->loc; | |
| 1146 e->error("constant %s is not an lvalue", e->toChars()); | |
| 1147 return this; | |
| 1148 } | |
| 1149 | |
| 1150 void IntegerExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1151 { | |
| 1152 integer_t v = toInteger(); | |
| 1153 | |
| 1154 if (type) | |
| 1155 { Type *t = type; | |
| 1156 | |
| 1157 L1: | |
| 1158 switch (t->ty) | |
| 1159 { | |
| 1160 case Tenum: | |
| 1161 { TypeEnum *te = (TypeEnum *)t; | |
| 1162 buf->printf("cast(%s)", te->sym->toChars()); | |
| 1163 t = te->sym->memtype; | |
| 1164 goto L1; | |
| 1165 } | |
| 1166 | |
| 1167 case Ttypedef: | |
| 1168 { TypeTypedef *tt = (TypeTypedef *)t; | |
| 1169 buf->printf("cast(%s)", tt->sym->toChars()); | |
| 1170 t = tt->sym->basetype; | |
| 1171 goto L1; | |
| 1172 } | |
| 1173 | |
| 1174 case Twchar: // BUG: need to cast(wchar) | |
| 1175 case Tdchar: // BUG: need to cast(dchar) | |
| 1176 if ((uinteger_t)v > 0xFF) | |
| 1177 { | |
| 1178 buf->printf("'\\U%08x'", v); | |
| 1179 break; | |
| 1180 } | |
| 1181 case Tchar: | |
| 1182 if (v == '\'') | |
| 1183 buf->writestring("'\\''"); | |
| 1184 else if (isprint(v) && v != '\\') | |
| 1185 buf->printf("'%c'", (int)v); | |
| 1186 else | |
| 1187 buf->printf("'\\x%02x'", (int)v); | |
| 1188 break; | |
| 1189 | |
| 1190 case Tint8: | |
| 1191 buf->writestring("cast(byte)"); | |
| 1192 goto L2; | |
| 1193 | |
| 1194 case Tint16: | |
| 1195 buf->writestring("cast(short)"); | |
| 1196 goto L2; | |
| 1197 | |
| 1198 case Tint32: | |
| 1199 L2: | |
| 1200 buf->printf("%d", (int)v); | |
| 1201 break; | |
| 1202 | |
| 1203 case Tuns8: | |
| 1204 buf->writestring("cast(ubyte)"); | |
| 1205 goto L3; | |
| 1206 | |
| 1207 case Tuns16: | |
| 1208 buf->writestring("cast(ushort)"); | |
| 1209 goto L3; | |
| 1210 | |
| 1211 case Tuns32: | |
| 1212 L3: | |
| 1213 buf->printf("%du", (unsigned)v); | |
| 1214 break; | |
| 1215 | |
| 1216 case Tint64: | |
| 1217 buf->printf("%jdL", v); | |
| 1218 break; | |
| 1219 | |
| 1220 case Tuns64: | |
| 1221 buf->printf("%juLU", v); | |
| 1222 break; | |
| 1223 | |
| 1224 case Tbit: | |
| 1225 case Tbool: | |
| 1226 buf->writestring((char *)(v ? "true" : "false")); | |
| 1227 break; | |
| 1228 | |
| 1229 case Tpointer: | |
| 1230 buf->writestring("cast("); | |
| 1231 buf->writestring(t->toChars()); | |
| 1232 buf->writeByte(')'); | |
| 1233 goto L3; | |
| 1234 | |
| 1235 default: | |
| 1236 #ifdef DEBUG | |
| 1237 t->print(); | |
| 1238 #endif | |
| 1239 assert(0); | |
| 1240 } | |
| 1241 } | |
| 1242 else if (v & 0x8000000000000000LL) | |
| 1243 buf->printf("0x%jx", v); | |
| 1244 else | |
| 1245 buf->printf("%jd", v); | |
| 1246 } | |
| 1247 | |
| 1248 void IntegerExp::toMangleBuffer(OutBuffer *buf) | |
| 1249 { | |
| 1250 if ((sinteger_t)value < 0) | |
| 1251 buf->printf("N%jd", -value); | |
| 1252 else | |
| 1253 buf->printf("%jd", value); | |
| 1254 } | |
| 1255 | |
| 1256 /******************************** RealExp **************************/ | |
| 1257 | |
| 1258 RealExp::RealExp(Loc loc, real_t value, Type *type) | |
| 1259 : Expression(loc, TOKfloat64, sizeof(RealExp)) | |
| 1260 { | |
| 1261 //printf("RealExp::RealExp(%Lg)\n", value); | |
| 1262 this->value = value; | |
| 1263 this->type = type; | |
| 1264 } | |
| 1265 | |
| 1266 char *RealExp::toChars() | |
| 1267 { | |
| 1268 static char buffer[sizeof(value) * 3 + 8 + 1 + 1]; | |
| 1269 | |
| 1270 #ifdef IN_GCC | |
| 1271 value.format(buffer, sizeof(buffer)); | |
| 1272 if (type->isimaginary()) | |
| 1273 strcat(buffer, "i"); | |
| 1274 #else | |
| 1275 sprintf(buffer, type->isimaginary() ? "%Lgi" : "%Lg", value); | |
| 1276 #endif | |
| 1277 assert(strlen(buffer) < sizeof(buffer)); | |
| 1278 return buffer; | |
| 1279 } | |
| 1280 | |
| 1281 integer_t RealExp::toInteger() | |
| 1282 { | |
| 1283 #ifdef IN_GCC | |
| 1284 return toReal().toInt(); | |
| 1285 #else | |
| 1286 return (sinteger_t) toReal(); | |
| 1287 #endif | |
| 1288 } | |
| 1289 | |
| 1290 uinteger_t RealExp::toUInteger() | |
| 1291 { | |
| 1292 #ifdef IN_GCC | |
| 1293 return (uinteger_t) toReal().toInt(); | |
| 1294 #else | |
| 1295 return (uinteger_t) toReal(); | |
| 1296 #endif | |
| 1297 } | |
| 1298 | |
| 1299 real_t RealExp::toReal() | |
| 1300 { | |
| 1301 return type->isreal() ? value : 0; | |
| 1302 } | |
| 1303 | |
| 1304 real_t RealExp::toImaginary() | |
| 1305 { | |
| 1306 return type->isreal() ? 0 : value; | |
| 1307 } | |
| 1308 | |
| 1309 complex_t RealExp::toComplex() | |
| 1310 { | |
| 1311 #ifdef __DMC__ | |
| 1312 return toReal() + toImaginary() * I; | |
| 1313 #else | |
| 1314 return complex_t(toReal(), toImaginary()); | |
| 1315 #endif | |
| 1316 } | |
| 1317 | |
| 1318 /******************************** | |
| 1319 * Test to see if two reals are the same. | |
| 1320 * Regard NaN's as equivalent. | |
| 1321 * Regard +0 and -0 as different. | |
| 1322 */ | |
| 1323 | |
| 1324 int RealEquals(real_t x1, real_t x2) | |
| 1325 { | |
| 1326 return (isnan(x1) && isnan(x2)) || | |
| 1327 /* In some cases, the REALPAD bytes get garbage in them, | |
| 1328 * so be sure and ignore them. | |
| 1329 */ | |
| 1330 memcmp(&x1, &x2, REALSIZE - REALPAD) == 0; | |
| 1331 } | |
| 1332 | |
| 1333 int RealExp::equals(Object *o) | |
| 1334 { RealExp *ne; | |
| 1335 | |
| 1336 if (this == o || | |
| 1337 (((Expression *)o)->op == TOKfloat64 && | |
| 1338 ((ne = (RealExp *)o), type->equals(ne->type)) && | |
| 1339 RealEquals(value, ne->value) | |
| 1340 ) | |
| 1341 ) | |
| 1342 return 1; | |
| 1343 return 0; | |
| 1344 } | |
| 1345 | |
| 1346 Expression *RealExp::semantic(Scope *sc) | |
| 1347 { | |
| 1348 if (!type) | |
| 1349 type = Type::tfloat64; | |
| 1350 else | |
| 1351 type = type->semantic(loc, sc); | |
| 1352 return this; | |
| 1353 } | |
| 1354 | |
| 1355 int RealExp::isBool(int result) | |
| 1356 { | |
| 1357 #ifdef IN_GCC | |
| 1358 return result ? (! value.isZero()) : (value.isZero()); | |
| 1359 #else | |
| 1360 return result ? (value != 0) | |
| 1361 : (value == 0); | |
| 1362 #endif | |
| 1363 } | |
| 1364 | |
| 1365 void floatToBuffer(OutBuffer *buf, Type *type, real_t value) | |
| 1366 { | |
| 1367 /* In order to get an exact representation, try converting it | |
| 1368 * to decimal then back again. If it matches, use it. | |
| 1369 * If it doesn't, fall back to hex, which is | |
| 1370 * always exact. | |
| 1371 */ | |
| 1372 char buffer[25]; | |
| 1373 sprintf(buffer, "%Lg", value); | |
| 1374 assert(strlen(buffer) < sizeof(buffer)); | |
| 1375 #if _WIN32 && __DMC__ | |
| 1376 char *save = __locale_decpoint; | |
| 1377 __locale_decpoint = "."; | |
| 1378 real_t r = strtold(buffer, NULL); | |
| 1379 __locale_decpoint = save; | |
| 1380 #else | |
| 1381 real_t r = strtold(buffer, NULL); | |
| 1382 #endif | |
| 1383 if (r == value) // if exact duplication | |
| 1384 buf->writestring(buffer); | |
| 1385 else | |
| 1386 buf->printf("%La", value); // ensure exact duplication | |
| 1387 | |
| 1388 if (type) | |
| 1389 { | |
| 1390 Type *t = type->toBasetype(); | |
| 1391 switch (t->ty) | |
| 1392 { | |
| 1393 case Tfloat32: | |
| 1394 case Timaginary32: | |
| 1395 case Tcomplex32: | |
| 1396 buf->writeByte('F'); | |
| 1397 break; | |
| 1398 | |
| 1399 case Tfloat80: | |
| 1400 case Timaginary80: | |
| 1401 case Tcomplex80: | |
| 1402 buf->writeByte('L'); | |
| 1403 break; | |
| 1404 | |
| 1405 default: | |
| 1406 break; | |
| 1407 } | |
| 1408 if (t->isimaginary()) | |
| 1409 buf->writeByte('i'); | |
| 1410 } | |
| 1411 } | |
| 1412 | |
| 1413 void RealExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1414 { | |
| 1415 floatToBuffer(buf, type, value); | |
| 1416 } | |
| 1417 | |
| 1418 void realToMangleBuffer(OutBuffer *buf, real_t value) | |
| 1419 { | |
| 1420 /* Rely on %A to get portable mangling. | |
| 1421 * Must munge result to get only identifier characters. | |
| 1422 * | |
| 1423 * Possible values from %A => mangled result | |
| 1424 * NAN => NAN | |
| 1425 * -INF => NINF | |
| 1426 * INF => INF | |
| 1427 * -0X1.1BC18BA997B95P+79 => N11BC18BA997B95P79 | |
| 1428 * 0X1.9P+2 => 19P2 | |
| 1429 */ | |
| 1430 | |
| 1431 if (isnan(value)) | |
| 1432 buf->writestring("NAN"); // no -NAN bugs | |
| 1433 else | |
| 1434 { | |
| 1435 char buffer[32]; | |
| 1436 int n = sprintf(buffer, "%LA", value); | |
| 1437 assert(n > 0 && n < sizeof(buffer)); | |
| 1438 for (int i = 0; i < n; i++) | |
| 1439 { char c = buffer[i]; | |
| 1440 | |
| 1441 switch (c) | |
| 1442 { | |
| 1443 case '-': | |
| 1444 buf->writeByte('N'); | |
| 1445 break; | |
| 1446 | |
| 1447 case '+': | |
| 1448 case 'X': | |
| 1449 case '.': | |
| 1450 break; | |
| 1451 | |
| 1452 case '0': | |
| 1453 if (i < 2) | |
| 1454 break; // skip leading 0X | |
| 1455 default: | |
| 1456 buf->writeByte(c); | |
| 1457 break; | |
| 1458 } | |
| 1459 } | |
| 1460 } | |
| 1461 } | |
| 1462 | |
| 1463 void RealExp::toMangleBuffer(OutBuffer *buf) | |
| 1464 { | |
| 1465 buf->writeByte('e'); | |
| 1466 realToMangleBuffer(buf, value); | |
| 1467 } | |
| 1468 | |
| 1469 | |
| 1470 /******************************** ComplexExp **************************/ | |
| 1471 | |
| 1472 ComplexExp::ComplexExp(Loc loc, complex_t value, Type *type) | |
| 1473 : Expression(loc, TOKcomplex80, sizeof(ComplexExp)) | |
| 1474 { | |
| 1475 this->value = value; | |
| 1476 this->type = type; | |
| 1477 //printf("ComplexExp::ComplexExp(%s)\n", toChars()); | |
| 1478 } | |
| 1479 | |
| 1480 char *ComplexExp::toChars() | |
| 1481 { | |
| 1482 static char buffer[sizeof(value) * 3 + 8 + 1]; | |
| 1483 | |
| 1484 #ifdef IN_GCC | |
| 1485 char buf1[sizeof(value) * 3 + 8 + 1]; | |
| 1486 char buf2[sizeof(value) * 3 + 8 + 1]; | |
| 1487 creall(value).format(buf1, sizeof(buf1)); | |
| 1488 cimagl(value).format(buf2, sizeof(buf2)); | |
| 1489 sprintf(buffer, "(%s+%si)", buf1, buf2); | |
| 1490 #else | |
| 1491 sprintf(buffer, "(%Lg+%Lgi)", creall(value), cimagl(value)); | |
| 1492 assert(strlen(buffer) < sizeof(buffer)); | |
| 1493 #endif | |
| 1494 return buffer; | |
| 1495 } | |
| 1496 | |
| 1497 integer_t ComplexExp::toInteger() | |
| 1498 { | |
| 1499 #ifdef IN_GCC | |
| 1500 return (sinteger_t) toReal().toInt(); | |
| 1501 #else | |
| 1502 return (sinteger_t) toReal(); | |
| 1503 #endif | |
| 1504 } | |
| 1505 | |
| 1506 uinteger_t ComplexExp::toUInteger() | |
| 1507 { | |
| 1508 #ifdef IN_GCC | |
| 1509 return (uinteger_t) toReal().toInt(); | |
| 1510 #else | |
| 1511 return (uinteger_t) toReal(); | |
| 1512 #endif | |
| 1513 } | |
| 1514 | |
| 1515 real_t ComplexExp::toReal() | |
| 1516 { | |
| 1517 return creall(value); | |
| 1518 } | |
| 1519 | |
| 1520 real_t ComplexExp::toImaginary() | |
| 1521 { | |
| 1522 return cimagl(value); | |
| 1523 } | |
| 1524 | |
| 1525 complex_t ComplexExp::toComplex() | |
| 1526 { | |
| 1527 return value; | |
| 1528 } | |
| 1529 | |
| 1530 int ComplexExp::equals(Object *o) | |
| 1531 { ComplexExp *ne; | |
| 1532 | |
| 1533 if (this == o || | |
| 1534 (((Expression *)o)->op == TOKcomplex80 && | |
| 1535 ((ne = (ComplexExp *)o), type->equals(ne->type)) && | |
| 1536 RealEquals(creall(value), creall(ne->value)) && | |
| 1537 RealEquals(cimagl(value), cimagl(ne->value)) | |
| 1538 ) | |
| 1539 ) | |
| 1540 return 1; | |
| 1541 return 0; | |
| 1542 } | |
| 1543 | |
| 1544 Expression *ComplexExp::semantic(Scope *sc) | |
| 1545 { | |
| 1546 if (!type) | |
| 1547 type = Type::tcomplex80; | |
| 1548 else | |
| 1549 type = type->semantic(loc, sc); | |
| 1550 return this; | |
| 1551 } | |
| 1552 | |
| 1553 int ComplexExp::isBool(int result) | |
| 1554 { | |
| 1555 if (result) | |
| 1556 return (bool)(value); | |
| 1557 else | |
| 1558 return !value; | |
| 1559 } | |
| 1560 | |
| 1561 void ComplexExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1562 { | |
| 1563 /* Print as: | |
| 1564 * (re+imi) | |
| 1565 */ | |
| 1566 #ifdef IN_GCC | |
| 1567 char buf1[sizeof(value) * 3 + 8 + 1]; | |
| 1568 char buf2[sizeof(value) * 3 + 8 + 1]; | |
| 1569 creall(value).format(buf1, sizeof(buf1)); | |
| 1570 cimagl(value).format(buf2, sizeof(buf2)); | |
| 1571 buf->printf("(%s+%si)", buf1, buf2); | |
| 1572 #else | |
| 1573 buf->writeByte('('); | |
| 1574 floatToBuffer(buf, type, creall(value)); | |
| 1575 buf->writeByte('+'); | |
| 1576 floatToBuffer(buf, type, cimagl(value)); | |
| 1577 buf->writestring("i)"); | |
| 1578 #endif | |
| 1579 } | |
| 1580 | |
| 1581 void ComplexExp::toMangleBuffer(OutBuffer *buf) | |
| 1582 { | |
| 1583 buf->writeByte('c'); | |
| 1584 real_t r = toReal(); | |
| 1585 realToMangleBuffer(buf, r); | |
| 1586 buf->writeByte('c'); // separate the two | |
| 1587 r = toImaginary(); | |
| 1588 realToMangleBuffer(buf, r); | |
| 1589 } | |
| 1590 | |
| 1591 /******************************** IdentifierExp **************************/ | |
| 1592 | |
| 1593 IdentifierExp::IdentifierExp(Loc loc, Identifier *ident) | |
| 1594 : Expression(loc, TOKidentifier, sizeof(IdentifierExp)) | |
| 1595 { | |
| 1596 this->ident = ident; | |
| 1597 } | |
| 1598 | |
| 1599 Expression *IdentifierExp::semantic(Scope *sc) | |
| 1600 { | |
| 1601 Dsymbol *s; | |
| 1602 Dsymbol *scopesym; | |
| 1603 | |
| 1604 #if LOGSEMANTIC | |
| 1605 printf("IdentifierExp::semantic('%s')\n", ident->toChars()); | |
| 1606 #endif | |
| 1607 s = sc->search(loc, ident, &scopesym); | |
| 1608 if (s) | |
| 1609 { Expression *e; | |
| 1610 WithScopeSymbol *withsym; | |
| 1611 | |
| 1612 // See if it was a with class | |
| 1613 withsym = scopesym->isWithScopeSymbol(); | |
| 1614 if (withsym) | |
| 1615 { | |
| 1616 s = s->toAlias(); | |
| 1617 | |
| 1618 // Same as wthis.ident | |
| 1619 if (s->needThis() || s->isTemplateDeclaration()) | |
| 1620 { | |
| 1621 e = new VarExp(loc, withsym->withstate->wthis); | |
| 1622 e = new DotIdExp(loc, e, ident); | |
| 1623 } | |
| 1624 else | |
| 1625 { Type *t = withsym->withstate->wthis->type; | |
| 1626 if (t->ty == Tpointer) | |
| 1627 t = t->next; | |
| 1628 e = new TypeDotIdExp(loc, t, ident); | |
| 1629 } | |
| 1630 } | |
| 1631 else | |
| 1632 { | |
| 1633 if (!s->parent && scopesym->isArrayScopeSymbol()) | |
| 1634 { // Kludge to run semantic() here because | |
| 1635 // ArrayScopeSymbol::search() doesn't have access to sc. | |
| 1636 s->semantic(sc); | |
| 1637 } | |
| 1638 // Look to see if f is really a function template | |
| 1639 FuncDeclaration *f = s->isFuncDeclaration(); | |
| 1640 if (f && f->parent) | |
| 1641 { TemplateInstance *ti = f->parent->isTemplateInstance(); | |
| 1642 | |
| 1643 if (ti && | |
| 1644 !ti->isTemplateMixin() && | |
| 1645 (ti->name == f->ident || | |
| 1646 ti->toAlias()->ident == f->ident) | |
| 1647 && | |
| 1648 ti->tempdecl && ti->tempdecl->onemember) | |
| 1649 { | |
| 1650 TemplateDeclaration *tempdecl = ti->tempdecl; | |
| 1651 if (tempdecl->overroot) // if not start of overloaded list of TemplateDeclaration's | |
| 1652 tempdecl = tempdecl->overroot; // then get the start | |
| 1653 e = new TemplateExp(loc, tempdecl); | |
| 1654 e = e->semantic(sc); | |
| 1655 return e; | |
| 1656 } | |
| 1657 } | |
| 1658 e = new DsymbolExp(loc, s); | |
| 1659 } | |
| 1660 return e->semantic(sc); | |
| 1661 } | |
| 1662 error("undefined identifier %s", ident->toChars()); | |
| 1663 type = Type::terror; | |
| 1664 return this; | |
| 1665 } | |
| 1666 | |
| 1667 char *IdentifierExp::toChars() | |
| 1668 { | |
| 1669 return ident->toChars(); | |
| 1670 } | |
| 1671 | |
| 1672 void IdentifierExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1673 { | |
| 1674 if (hgs->hdrgen) | |
| 1675 buf->writestring(ident->toHChars2()); | |
| 1676 else | |
| 1677 buf->writestring(ident->toChars()); | |
| 1678 } | |
| 1679 | |
| 1680 Expression *IdentifierExp::toLvalue(Scope *sc, Expression *e) | |
| 1681 { | |
| 1682 #if 0 | |
| 1683 tym = tybasic(e1->ET->Tty); | |
| 1684 if (!(tyscalar(tym) || | |
| 1685 tym == TYstruct || | |
| 1686 tym == TYarray && e->Eoper == TOKaddr)) | |
| 1687 synerr(EM_lvalue); // lvalue expected | |
| 1688 #endif | |
| 1689 return this; | |
| 1690 } | |
| 1691 | |
| 1692 /******************************** DollarExp **************************/ | |
| 1693 | |
| 1694 DollarExp::DollarExp(Loc loc) | |
| 1695 : IdentifierExp(loc, Id::dollar) | |
| 1696 { | |
| 1697 } | |
| 1698 | |
| 1699 /******************************** DsymbolExp **************************/ | |
| 1700 | |
| 1701 DsymbolExp::DsymbolExp(Loc loc, Dsymbol *s) | |
| 1702 : Expression(loc, TOKdsymbol, sizeof(DsymbolExp)) | |
| 1703 { | |
| 1704 this->s = s; | |
| 1705 } | |
| 1706 | |
| 1707 Expression *DsymbolExp::semantic(Scope *sc) | |
| 1708 { | |
| 1709 #if LOGSEMANTIC | |
| 1710 printf("DsymbolExp::semantic('%s')\n", s->toChars()); | |
| 1711 #endif | |
| 1712 | |
| 1713 Lagain: | |
| 1714 EnumMember *em; | |
| 1715 Expression *e; | |
| 1716 VarDeclaration *v; | |
| 1717 FuncDeclaration *f; | |
| 1718 FuncLiteralDeclaration *fld; | |
| 1719 Declaration *d; | |
| 1720 ClassDeclaration *cd; | |
| 1721 ClassDeclaration *thiscd = NULL; | |
| 1722 Import *imp; | |
| 1723 Package *pkg; | |
| 1724 Type *t; | |
| 1725 | |
| 1726 //printf("DsymbolExp:: %p '%s' is a symbol\n", this, toChars()); | |
| 1727 //printf("s = '%s', s->kind = '%s'\n", s->toChars(), s->kind()); | |
| 1728 if (type) | |
| 1729 return this; | |
| 1730 if (!s->isFuncDeclaration()) // functions are checked after overloading | |
| 1731 checkDeprecated(sc, s); | |
| 1732 s = s->toAlias(); | |
| 1733 //printf("s = '%s', s->kind = '%s', s->needThis() = %p\n", s->toChars(), s->kind(), s->needThis()); | |
| 1734 if (!s->isFuncDeclaration()) | |
| 1735 checkDeprecated(sc, s); | |
| 1736 | |
| 1737 if (sc->func) | |
| 1738 thiscd = sc->func->parent->isClassDeclaration(); | |
| 1739 | |
| 1740 // BUG: This should happen after overload resolution for functions, not before | |
| 1741 if (s->needThis()) | |
| 1742 { | |
| 1743 if (hasThis(sc) /*&& !s->isFuncDeclaration()*/) | |
| 1744 { | |
| 1745 // Supply an implicit 'this', as in | |
| 1746 // this.ident | |
| 1747 | |
| 1748 DotVarExp *de; | |
| 1749 | |
| 1750 de = new DotVarExp(loc, new ThisExp(loc), s->isDeclaration()); | |
| 1751 return de->semantic(sc); | |
| 1752 } | |
| 1753 } | |
| 1754 | |
| 1755 em = s->isEnumMember(); | |
| 1756 if (em) | |
| 1757 { | |
| 1758 e = em->value; | |
| 1759 e = e->semantic(sc); | |
| 1760 return e; | |
| 1761 } | |
| 1762 v = s->isVarDeclaration(); | |
| 1763 if (v) | |
| 1764 { | |
| 1765 //printf("Identifier '%s' is a variable, type '%s'\n", toChars(), v->type->toChars()); | |
| 1766 if (!type) | |
| 1767 { type = v->type; | |
| 1768 if (!v->type) | |
| 1769 { error("forward reference of %s", v->toChars()); | |
| 1770 type = Type::terror; | |
| 1771 } | |
| 1772 } | |
| 1773 if (v->isConst() && type->toBasetype()->ty != Tsarray) | |
| 1774 { | |
| 1775 if (v->init) | |
| 1776 { | |
| 1777 if (v->inuse) | |
| 1778 { | |
| 1779 error("circular reference to '%s'", v->toChars()); | |
| 1780 type = Type::tint32; | |
| 1781 return this; | |
| 1782 } | |
| 1783 ExpInitializer *ei = v->init->isExpInitializer(); | |
| 1784 if (ei) | |
| 1785 { | |
| 1786 e = ei->exp->copy(); // make copy so we can change loc | |
| 1787 if (e->op == TOKstring || !e->type) | |
| 1788 e = e->semantic(sc); | |
| 1789 e = e->implicitCastTo(sc, type); | |
| 1790 e->loc = loc; | |
| 1791 return e; | |
| 1792 } | |
| 1793 } | |
| 1794 else | |
| 1795 { | |
| 1796 e = type->defaultInit(); | |
| 1797 e->loc = loc; | |
| 1798 return e; | |
| 1799 } | |
| 1800 } | |
| 1801 e = new VarExp(loc, v); | |
| 1802 e->type = type; | |
| 1803 e = e->semantic(sc); | |
| 1804 return e->deref(); | |
| 1805 } | |
| 1806 fld = s->isFuncLiteralDeclaration(); | |
| 1807 if (fld) | |
| 1808 { //printf("'%s' is a function literal\n", fld->toChars()); | |
| 1809 e = new FuncExp(loc, fld); | |
| 1810 return e->semantic(sc); | |
| 1811 } | |
| 1812 f = s->isFuncDeclaration(); | |
| 1813 if (f) | |
| 1814 { //printf("'%s' is a function\n", f->toChars()); | |
| 1815 return new VarExp(loc, f); | |
| 1816 } | |
| 1817 cd = s->isClassDeclaration(); | |
| 1818 if (cd && thiscd && cd->isBaseOf(thiscd, NULL) && sc->func->needThis()) | |
| 1819 { | |
| 1820 // We need to add an implicit 'this' if cd is this class or a base class. | |
| 1821 DotTypeExp *dte; | |
| 1822 | |
| 1823 dte = new DotTypeExp(loc, new ThisExp(loc), s); | |
| 1824 return dte->semantic(sc); | |
| 1825 } | |
| 1826 imp = s->isImport(); | |
| 1827 if (imp) | |
| 1828 { | |
| 1829 ScopeExp *ie; | |
| 1830 | |
| 1831 ie = new ScopeExp(loc, imp->pkg); | |
| 1832 return ie->semantic(sc); | |
| 1833 } | |
| 1834 pkg = s->isPackage(); | |
| 1835 if (pkg) | |
| 1836 { | |
| 1837 ScopeExp *ie; | |
| 1838 | |
| 1839 ie = new ScopeExp(loc, pkg); | |
| 1840 return ie->semantic(sc); | |
| 1841 } | |
| 1842 Module *mod = s->isModule(); | |
| 1843 if (mod) | |
| 1844 { | |
| 1845 ScopeExp *ie; | |
| 1846 | |
| 1847 ie = new ScopeExp(loc, mod); | |
| 1848 return ie->semantic(sc); | |
| 1849 } | |
| 1850 | |
| 1851 t = s->getType(); | |
| 1852 if (t) | |
| 1853 { | |
| 1854 return new TypeExp(loc, t); | |
| 1855 } | |
| 1856 | |
| 1857 TupleDeclaration *tup = s->isTupleDeclaration(); | |
| 1858 if (tup) | |
| 1859 { | |
| 1860 e = new TupleExp(loc, tup); | |
| 1861 e = e->semantic(sc); | |
| 1862 return e; | |
| 1863 } | |
| 1864 | |
| 1865 TemplateInstance *ti = s->isTemplateInstance(); | |
| 1866 if (ti && !global.errors) | |
| 1867 { if (!ti->semanticdone) | |
| 1868 ti->semantic(sc); | |
| 1869 s = ti->inst->toAlias(); | |
| 1870 if (!s->isTemplateInstance()) | |
| 1871 goto Lagain; | |
| 1872 e = new ScopeExp(loc, ti); | |
| 1873 e = e->semantic(sc); | |
| 1874 return e; | |
| 1875 } | |
| 1876 | |
| 1877 TemplateDeclaration *td = s->isTemplateDeclaration(); | |
| 1878 if (td) | |
| 1879 { | |
| 1880 e = new TemplateExp(loc, td); | |
| 1881 e = e->semantic(sc); | |
| 1882 return e; | |
| 1883 } | |
| 1884 | |
| 1885 Lerr: | |
| 1886 error("%s '%s' is not a variable", s->kind(), s->toChars()); | |
| 1887 type = Type::terror; | |
| 1888 return this; | |
| 1889 } | |
| 1890 | |
| 1891 char *DsymbolExp::toChars() | |
| 1892 { | |
| 1893 return s->toChars(); | |
| 1894 } | |
| 1895 | |
| 1896 void DsymbolExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1897 { | |
| 1898 buf->writestring(s->toChars()); | |
| 1899 } | |
| 1900 | |
| 1901 Expression *DsymbolExp::toLvalue(Scope *sc, Expression *e) | |
| 1902 { | |
| 1903 #if 0 | |
| 1904 tym = tybasic(e1->ET->Tty); | |
| 1905 if (!(tyscalar(tym) || | |
| 1906 tym == TYstruct || | |
| 1907 tym == TYarray && e->Eoper == TOKaddr)) | |
| 1908 synerr(EM_lvalue); // lvalue expected | |
| 1909 #endif | |
| 1910 return this; | |
| 1911 } | |
| 1912 | |
| 1913 /******************************** ThisExp **************************/ | |
| 1914 | |
| 1915 ThisExp::ThisExp(Loc loc) | |
| 1916 : Expression(loc, TOKthis, sizeof(ThisExp)) | |
| 1917 { | |
| 1918 var = NULL; | |
| 1919 } | |
| 1920 | |
| 1921 Expression *ThisExp::semantic(Scope *sc) | |
| 1922 { FuncDeclaration *fd; | |
| 1923 FuncDeclaration *fdthis; | |
| 1924 int nested = 0; | |
| 1925 | |
| 1926 #if LOGSEMANTIC | |
| 1927 printf("ThisExp::semantic()\n"); | |
| 1928 #endif | |
| 1929 if (type) | |
| 1930 { //assert(global.errors || var); | |
| 1931 return this; | |
| 1932 } | |
| 1933 | |
| 1934 /* Special case for typeof(this) and typeof(super) since both | |
| 1935 * should work even if they are not inside a non-static member function | |
| 1936 */ | |
| 1937 if (sc->intypeof) | |
| 1938 { | |
| 1939 // Find enclosing struct or class | |
| 1940 for (Dsymbol *s = sc->parent; 1; s = s->parent) | |
| 1941 { | |
| 1942 ClassDeclaration *cd; | |
| 1943 StructDeclaration *sd; | |
| 1944 | |
| 1945 if (!s) | |
| 1946 { | |
| 1947 error("%s is not in a struct or class scope", toChars()); | |
| 1948 goto Lerr; | |
| 1949 } | |
| 1950 cd = s->isClassDeclaration(); | |
| 1951 if (cd) | |
| 1952 { | |
| 1953 type = cd->type; | |
| 1954 return this; | |
| 1955 } | |
| 1956 sd = s->isStructDeclaration(); | |
| 1957 if (sd) | |
| 1958 { | |
| 1959 type = sd->type->pointerTo(); | |
| 1960 return this; | |
| 1961 } | |
| 1962 } | |
| 1963 } | |
| 1964 | |
| 1965 fdthis = sc->parent->isFuncDeclaration(); | |
| 1966 fd = hasThis(sc); // fd is the uplevel function with the 'this' variable | |
| 1967 if (!fd) | |
| 1968 goto Lerr; | |
| 1969 | |
| 1970 assert(fd->vthis); | |
| 1971 var = fd->vthis; | |
| 1972 assert(var->parent); | |
| 1973 type = var->type; | |
| 1974 var->isVarDeclaration()->checkNestedReference(sc, loc); | |
| 1975 #if 0 | |
| 1976 if (fd != fdthis) // if nested | |
| 1977 { | |
| 1978 fdthis->getLevel(loc, fd); | |
| 1979 fd->vthis->nestedref = 1; | |
| 1980 fd->nestedFrameRef = 1; | |
| 1981 } | |
| 1982 #endif | |
| 1983 sc->callSuper |= CSXthis; | |
| 1984 return this; | |
| 1985 | |
| 1986 Lerr: | |
| 1987 error("'this' is only allowed in non-static member functions, not %s", sc->parent->toChars()); | |
| 1988 type = Type::tint32; | |
| 1989 return this; | |
| 1990 } | |
| 1991 | |
| 1992 int ThisExp::isBool(int result) | |
| 1993 { | |
| 1994 return result ? TRUE : FALSE; | |
| 1995 } | |
| 1996 | |
| 1997 void ThisExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1998 { | |
| 1999 buf->writestring("this"); | |
| 2000 } | |
| 2001 | |
| 2002 Expression *ThisExp::toLvalue(Scope *sc, Expression *e) | |
| 2003 { | |
| 2004 return this; | |
| 2005 } | |
| 2006 | |
| 2007 /******************************** SuperExp **************************/ | |
| 2008 | |
| 2009 SuperExp::SuperExp(Loc loc) | |
| 2010 : ThisExp(loc) | |
| 2011 { | |
| 2012 op = TOKsuper; | |
| 2013 } | |
| 2014 | |
| 2015 Expression *SuperExp::semantic(Scope *sc) | |
| 2016 { FuncDeclaration *fd; | |
| 2017 FuncDeclaration *fdthis; | |
| 2018 ClassDeclaration *cd; | |
| 2019 Dsymbol *s; | |
| 2020 | |
| 2021 #if LOGSEMANTIC | |
| 2022 printf("SuperExp::semantic('%s')\n", toChars()); | |
| 2023 #endif | |
| 2024 if (type) | |
| 2025 return this; | |
| 2026 | |
| 2027 /* Special case for typeof(this) and typeof(super) since both | |
| 2028 * should work even if they are not inside a non-static member function | |
| 2029 */ | |
| 2030 if (sc->intypeof) | |
| 2031 { | |
| 2032 // Find enclosing class | |
| 2033 for (Dsymbol *s = sc->parent; 1; s = s->parent) | |
| 2034 { | |
| 2035 ClassDeclaration *cd; | |
| 2036 | |
| 2037 if (!s) | |
| 2038 { | |
| 2039 error("%s is not in a class scope", toChars()); | |
| 2040 goto Lerr; | |
| 2041 } | |
| 2042 cd = s->isClassDeclaration(); | |
| 2043 if (cd) | |
| 2044 { | |
| 2045 cd = cd->baseClass; | |
| 2046 if (!cd) | |
| 2047 { error("class %s has no 'super'", s->toChars()); | |
| 2048 goto Lerr; | |
| 2049 } | |
| 2050 type = cd->type; | |
| 2051 return this; | |
| 2052 } | |
| 2053 } | |
| 2054 } | |
| 2055 | |
| 2056 fdthis = sc->parent->isFuncDeclaration(); | |
| 2057 fd = hasThis(sc); | |
| 2058 if (!fd) | |
| 2059 goto Lerr; | |
| 2060 assert(fd->vthis); | |
| 2061 var = fd->vthis; | |
| 2062 assert(var->parent); | |
| 2063 | |
| 2064 s = fd->toParent(); | |
| 2065 while (s && s->isTemplateInstance()) | |
| 2066 s = s->toParent(); | |
| 2067 assert(s); | |
| 2068 cd = s->isClassDeclaration(); | |
| 2069 //printf("parent is %s %s\n", fd->toParent()->kind(), fd->toParent()->toChars()); | |
| 2070 if (!cd) | |
| 2071 goto Lerr; | |
| 2072 if (!cd->baseClass) | |
| 2073 { | |
| 2074 error("no base class for %s", cd->toChars()); | |
| 2075 type = fd->vthis->type; | |
| 2076 } | |
| 2077 else | |
| 2078 { | |
| 2079 type = cd->baseClass->type; | |
| 2080 } | |
| 2081 | |
| 2082 var->isVarDeclaration()->checkNestedReference(sc, loc); | |
| 2083 #if 0 | |
| 2084 if (fd != fdthis) | |
| 2085 { | |
| 2086 fdthis->getLevel(loc, fd); | |
| 2087 fd->vthis->nestedref = 1; | |
| 2088 fd->nestedFrameRef = 1; | |
| 2089 } | |
| 2090 #endif | |
| 2091 | |
| 2092 sc->callSuper |= CSXsuper; | |
| 2093 return this; | |
| 2094 | |
| 2095 | |
| 2096 Lerr: | |
| 2097 error("'super' is only allowed in non-static class member functions"); | |
| 2098 type = Type::tint32; | |
| 2099 return this; | |
| 2100 } | |
| 2101 | |
| 2102 void SuperExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2103 { | |
| 2104 buf->writestring("super"); | |
| 2105 } | |
| 2106 | |
| 2107 | |
| 2108 /******************************** NullExp **************************/ | |
| 2109 | |
| 2110 NullExp::NullExp(Loc loc) | |
| 2111 : Expression(loc, TOKnull, sizeof(NullExp)) | |
| 2112 { | |
| 2113 committed = 0; | |
| 2114 } | |
| 2115 | |
| 2116 Expression *NullExp::semantic(Scope *sc) | |
| 2117 { | |
| 2118 #if LOGSEMANTIC | |
| 2119 printf("NullExp::semantic('%s')\n", toChars()); | |
| 2120 #endif | |
| 2121 // NULL is the same as (void *)0 | |
| 2122 if (!type) | |
| 2123 type = Type::tvoid->pointerTo(); | |
| 2124 return this; | |
| 2125 } | |
| 2126 | |
| 2127 int NullExp::isBool(int result) | |
| 2128 { | |
| 2129 return result ? FALSE : TRUE; | |
| 2130 } | |
| 2131 | |
| 2132 void NullExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2133 { | |
| 2134 buf->writestring("null"); | |
| 2135 } | |
| 2136 | |
| 2137 void NullExp::toMangleBuffer(OutBuffer *buf) | |
| 2138 { | |
| 2139 buf->writeByte('n'); | |
| 2140 } | |
| 2141 | |
| 2142 /******************************** StringExp **************************/ | |
| 2143 | |
| 2144 StringExp::StringExp(Loc loc, char *string) | |
| 2145 : Expression(loc, TOKstring, sizeof(StringExp)) | |
| 2146 { | |
| 2147 this->string = string; | |
| 2148 this->len = strlen(string); | |
| 2149 this->sz = 1; | |
| 2150 this->committed = 0; | |
| 2151 this->postfix = 0; | |
| 2152 } | |
| 2153 | |
| 2154 StringExp::StringExp(Loc loc, void *string, size_t len) | |
| 2155 : Expression(loc, TOKstring, sizeof(StringExp)) | |
| 2156 { | |
| 2157 this->string = string; | |
| 2158 this->len = len; | |
| 2159 this->sz = 1; | |
| 2160 this->committed = 0; | |
| 2161 this->postfix = 0; | |
| 2162 } | |
| 2163 | |
| 2164 StringExp::StringExp(Loc loc, void *string, size_t len, unsigned char postfix) | |
| 2165 : Expression(loc, TOKstring, sizeof(StringExp)) | |
| 2166 { | |
| 2167 this->string = string; | |
| 2168 this->len = len; | |
| 2169 this->sz = 1; | |
| 2170 this->committed = 0; | |
| 2171 this->postfix = postfix; | |
| 2172 } | |
| 2173 | |
| 2174 #if 0 | |
| 2175 Expression *StringExp::syntaxCopy() | |
| 2176 { | |
| 2177 printf("StringExp::syntaxCopy() %s\n", toChars()); | |
| 2178 return copy(); | |
| 2179 } | |
| 2180 #endif | |
| 2181 | |
| 2182 int StringExp::equals(Object *o) | |
| 2183 { | |
| 2184 //printf("StringExp::equals('%s')\n", o->toChars()); | |
| 2185 if (o && o->dyncast() == DYNCAST_EXPRESSION) | |
| 2186 { Expression *e = (Expression *)o; | |
| 2187 | |
| 2188 if (e->op == TOKstring) | |
| 2189 { | |
| 2190 return compare(o) == 0; | |
| 2191 } | |
| 2192 } | |
| 2193 return FALSE; | |
| 2194 } | |
| 2195 | |
| 2196 char *StringExp::toChars() | |
| 2197 { | |
| 2198 OutBuffer buf; | |
| 2199 HdrGenState hgs; | |
| 2200 char *p; | |
| 2201 | |
| 2202 memset(&hgs, 0, sizeof(hgs)); | |
| 2203 toCBuffer(&buf, &hgs); | |
| 2204 buf.writeByte(0); | |
| 2205 p = (char *)buf.data; | |
| 2206 buf.data = NULL; | |
| 2207 return p; | |
| 2208 } | |
| 2209 | |
| 2210 Expression *StringExp::semantic(Scope *sc) | |
| 2211 { | |
| 2212 #if LOGSEMANTIC | |
| 2213 printf("StringExp::semantic() %s\n", toChars()); | |
| 2214 #endif | |
| 2215 if (!type) | |
| 2216 { OutBuffer buffer; | |
| 2217 size_t newlen = 0; | |
| 2218 char *p; | |
| 2219 size_t u; | |
| 2220 unsigned c; | |
| 2221 | |
| 2222 switch (postfix) | |
| 2223 { | |
| 2224 case 'd': | |
| 2225 for (u = 0; u < len;) | |
| 2226 { | |
| 2227 p = utf_decodeChar((unsigned char *)string, len, &u, &c); | |
| 2228 if (p) | |
| 2229 { error("%s", p); | |
| 2230 break; | |
| 2231 } | |
| 2232 else | |
| 2233 { buffer.write4(c); | |
| 2234 newlen++; | |
| 2235 } | |
| 2236 } | |
| 2237 buffer.write4(0); | |
| 2238 string = buffer.extractData(); | |
| 2239 len = newlen; | |
| 2240 sz = 4; | |
| 2241 type = new TypeSArray(Type::tdchar, new IntegerExp(loc, len, Type::tindex)); | |
| 2242 committed = 1; | |
| 2243 break; | |
| 2244 | |
| 2245 case 'w': | |
| 2246 for (u = 0; u < len;) | |
| 2247 { | |
| 2248 p = utf_decodeChar((unsigned char *)string, len, &u, &c); | |
| 2249 if (p) | |
| 2250 { error("%s", p); | |
| 2251 break; | |
| 2252 } | |
| 2253 else | |
| 2254 { buffer.writeUTF16(c); | |
| 2255 newlen++; | |
| 2256 if (c >= 0x10000) | |
| 2257 newlen++; | |
| 2258 } | |
| 2259 } | |
| 2260 buffer.writeUTF16(0); | |
| 2261 string = buffer.extractData(); | |
| 2262 len = newlen; | |
| 2263 sz = 2; | |
| 2264 type = new TypeSArray(Type::twchar, new IntegerExp(loc, len, Type::tindex)); | |
| 2265 committed = 1; | |
| 2266 break; | |
| 2267 | |
| 2268 case 'c': | |
| 2269 committed = 1; | |
| 2270 default: | |
| 2271 type = new TypeSArray(Type::tchar, new IntegerExp(loc, len, Type::tindex)); | |
| 2272 break; | |
| 2273 } | |
| 2274 type = type->semantic(loc, sc); | |
| 2275 } | |
| 2276 return this; | |
| 2277 } | |
| 2278 | |
| 2279 /**************************************** | |
| 2280 * Convert string to char[]. | |
| 2281 */ | |
| 2282 | |
| 2283 StringExp *StringExp::toUTF8(Scope *sc) | |
| 2284 { | |
| 2285 if (sz != 1) | |
| 2286 { // Convert to UTF-8 string | |
| 2287 committed = 0; | |
| 2288 Expression *e = castTo(sc, Type::tchar->arrayOf()); | |
| 2289 e = e->optimize(WANTvalue); | |
| 2290 assert(e->op == TOKstring); | |
| 2291 StringExp *se = (StringExp *)e; | |
| 2292 assert(se->sz == 1); | |
| 2293 return se; | |
| 2294 } | |
| 2295 return this; | |
| 2296 } | |
| 2297 | |
| 2298 int StringExp::compare(Object *obj) | |
| 2299 { | |
| 2300 // Used to sort case statement expressions so we can do an efficient lookup | |
| 2301 StringExp *se2 = (StringExp *)(obj); | |
| 2302 | |
| 2303 // This is a kludge so isExpression() in template.c will return 5 | |
| 2304 // for StringExp's. | |
| 2305 if (!se2) | |
| 2306 return 5; | |
| 2307 | |
| 2308 assert(se2->op == TOKstring); | |
| 2309 | |
| 2310 int len1 = len; | |
| 2311 int len2 = se2->len; | |
| 2312 | |
| 2313 if (len1 == len2) | |
| 2314 { | |
| 2315 switch (sz) | |
| 2316 { | |
| 2317 case 1: | |
| 2318 return strcmp((char *)string, (char *)se2->string); | |
| 2319 | |
| 2320 case 2: | |
| 2321 { unsigned u; | |
| 2322 d_wchar *s1 = (d_wchar *)string; | |
| 2323 d_wchar *s2 = (d_wchar *)se2->string; | |
| 2324 | |
| 2325 for (u = 0; u < len; u++) | |
| 2326 { | |
| 2327 if (s1[u] != s2[u]) | |
| 2328 return s1[u] - s2[u]; | |
| 2329 } | |
| 2330 } | |
| 2331 | |
| 2332 case 4: | |
| 2333 { unsigned u; | |
| 2334 d_dchar *s1 = (d_dchar *)string; | |
| 2335 d_dchar *s2 = (d_dchar *)se2->string; | |
| 2336 | |
| 2337 for (u = 0; u < len; u++) | |
| 2338 { | |
| 2339 if (s1[u] != s2[u]) | |
| 2340 return s1[u] - s2[u]; | |
| 2341 } | |
| 2342 } | |
| 2343 break; | |
| 2344 | |
| 2345 default: | |
| 2346 assert(0); | |
| 2347 } | |
| 2348 } | |
| 2349 return len1 - len2; | |
| 2350 } | |
| 2351 | |
| 2352 int StringExp::isBool(int result) | |
| 2353 { | |
| 2354 return result ? TRUE : FALSE; | |
| 2355 } | |
| 2356 | |
|
35
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2357 unsigned StringExp::charAt(size_t i) |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2358 { unsigned value; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2359 |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2360 switch (sz) |
|
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 case 1: |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2363 value = ((unsigned char *)string)[i]; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2364 break; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2365 |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2366 case 2: |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2367 value = ((unsigned short *)string)[i]; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2368 break; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2369 |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2370 case 4: |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2371 value = ((unsigned int *)string)[i]; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2372 break; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2373 |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2374 default: |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2375 assert(0); |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2376 break; |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2377 } |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2378 return value; |
|
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 |
| 1 | 2381 void StringExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 2382 { | |
| 2383 buf->writeByte('"'); | |
| 2384 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
|
2385 { unsigned c = charAt(i); |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
2386 |
| 1 | 2387 switch (c) |
| 2388 { | |
| 2389 case '"': | |
| 2390 case '\\': | |
| 2391 if (!hgs->console) | |
| 2392 buf->writeByte('\\'); | |
| 2393 default: | |
| 2394 if (c <= 0xFF) | |
| 2395 { if (c <= 0x7F && (isprint(c) || hgs->console)) | |
| 2396 buf->writeByte(c); | |
| 2397 else | |
| 2398 buf->printf("\\x%02x", c); | |
| 2399 } | |
| 2400 else if (c <= 0xFFFF) | |
| 2401 buf->printf("\\x%02x\\x%02x", c & 0xFF, c >> 8); | |
| 2402 else | |
| 2403 buf->printf("\\x%02x\\x%02x\\x%02x\\x%02x", | |
| 2404 c & 0xFF, (c >> 8) & 0xFF, (c >> 16) & 0xFF, c >> 24); | |
| 2405 break; | |
| 2406 } | |
| 2407 } | |
| 2408 buf->writeByte('"'); | |
| 2409 if (postfix) | |
| 2410 buf->writeByte(postfix); | |
| 2411 } | |
| 2412 | |
| 2413 void StringExp::toMangleBuffer(OutBuffer *buf) | |
| 2414 { char m; | |
| 2415 OutBuffer tmp; | |
| 2416 char *p; | |
| 2417 unsigned c; | |
| 2418 size_t u; | |
| 2419 unsigned char *q; | |
| 2420 unsigned qlen; | |
| 2421 | |
| 2422 /* Write string in UTF-8 format | |
| 2423 */ | |
| 2424 switch (sz) | |
| 2425 { case 1: | |
| 2426 m = 'a'; | |
| 2427 q = (unsigned char *)string; | |
| 2428 qlen = len; | |
| 2429 break; | |
| 2430 case 2: | |
| 2431 m = 'w'; | |
| 2432 for (u = 0; u < len; ) | |
| 2433 { | |
| 2434 p = utf_decodeWchar((unsigned short *)string, len, &u, &c); | |
| 2435 if (p) | |
| 2436 error("%s", p); | |
| 2437 else | |
| 2438 tmp.writeUTF8(c); | |
| 2439 } | |
| 2440 q = tmp.data; | |
| 2441 qlen = tmp.offset; | |
| 2442 break; | |
| 2443 case 4: | |
| 2444 m = 'd'; | |
| 2445 for (u = 0; u < len; u++) | |
| 2446 { | |
| 2447 c = ((unsigned *)string)[u]; | |
| 2448 if (!utf_isValidDchar(c)) | |
| 2449 error("invalid UCS-32 char \\U%08x", c); | |
| 2450 else | |
| 2451 tmp.writeUTF8(c); | |
| 2452 } | |
| 2453 q = tmp.data; | |
| 2454 qlen = tmp.offset; | |
| 2455 break; | |
| 2456 default: | |
| 2457 assert(0); | |
| 2458 } | |
| 2459 buf->writeByte(m); | |
| 2460 buf->printf("%d_", qlen); | |
| 2461 for (size_t i = 0; i < qlen; i++) | |
| 2462 buf->printf("%02x", q[i]); | |
| 2463 } | |
| 2464 | |
| 2465 /************************ ArrayLiteralExp ************************************/ | |
| 2466 | |
| 2467 // [ e1, e2, e3, ... ] | |
| 2468 | |
| 2469 ArrayLiteralExp::ArrayLiteralExp(Loc loc, Expressions *elements) | |
| 2470 : Expression(loc, TOKarrayliteral, sizeof(ArrayLiteralExp)) | |
| 2471 { | |
| 2472 this->elements = elements; | |
| 2473 } | |
| 2474 | |
| 2475 ArrayLiteralExp::ArrayLiteralExp(Loc loc, Expression *e) | |
| 2476 : Expression(loc, TOKarrayliteral, sizeof(ArrayLiteralExp)) | |
| 2477 { | |
| 2478 elements = new Expressions; | |
| 2479 elements->push(e); | |
| 2480 } | |
| 2481 | |
| 2482 Expression *ArrayLiteralExp::syntaxCopy() | |
| 2483 { | |
| 2484 return new ArrayLiteralExp(loc, arraySyntaxCopy(elements)); | |
| 2485 } | |
| 2486 | |
| 2487 Expression *ArrayLiteralExp::semantic(Scope *sc) | |
| 2488 { Expression *e; | |
| 2489 Type *t0 = NULL; | |
| 2490 | |
| 2491 #if LOGSEMANTIC | |
| 2492 printf("ArrayLiteralExp::semantic('%s')\n", toChars()); | |
| 2493 #endif | |
| 2494 | |
| 2495 // Run semantic() on each element | |
| 2496 for (int i = 0; i < elements->dim; i++) | |
| 2497 { e = (Expression *)elements->data[i]; | |
| 2498 e = e->semantic(sc); | |
| 2499 elements->data[i] = (void *)e; | |
| 2500 } | |
| 2501 expandTuples(elements); | |
| 2502 for (int i = 0; i < elements->dim; i++) | |
| 2503 { e = (Expression *)elements->data[i]; | |
| 2504 | |
| 2505 if (!e->type) | |
| 2506 error("%s has no value", e->toChars()); | |
| 2507 e = resolveProperties(sc, e); | |
| 2508 | |
| 2509 unsigned char committed = 1; | |
| 2510 if (e->op == TOKstring) | |
| 2511 committed = ((StringExp *)e)->committed; | |
| 2512 | |
| 2513 if (!t0) | |
| 2514 { t0 = e->type; | |
| 2515 // Convert any static arrays to dynamic arrays | |
| 2516 if (t0->ty == Tsarray) | |
| 2517 { | |
| 2518 t0 = t0->next->arrayOf(); | |
| 2519 e = e->implicitCastTo(sc, t0); | |
| 2520 } | |
| 2521 } | |
| 2522 else | |
| 2523 e = e->implicitCastTo(sc, t0); | |
| 2524 if (!committed && e->op == TOKstring) | |
| 2525 { StringExp *se = (StringExp *)e; | |
| 2526 se->committed = 0; | |
| 2527 } | |
| 2528 elements->data[i] = (void *)e; | |
| 2529 } | |
| 2530 | |
| 2531 if (!t0) | |
| 2532 t0 = Type::tvoid; | |
| 2533 type = new TypeSArray(t0, new IntegerExp(elements->dim)); | |
| 2534 type = type->semantic(loc, sc); | |
| 2535 return this; | |
| 2536 } | |
| 2537 | |
| 2538 int ArrayLiteralExp::checkSideEffect(int flag) | |
| 2539 { int f = 0; | |
| 2540 | |
| 2541 for (size_t i = 0; i < elements->dim; i++) | |
| 2542 { Expression *e = (Expression *)elements->data[i]; | |
| 2543 | |
| 2544 f |= e->checkSideEffect(2); | |
| 2545 } | |
| 2546 if (flag == 0 && f == 0) | |
| 2547 Expression::checkSideEffect(0); | |
| 2548 return f; | |
| 2549 } | |
| 2550 | |
| 2551 int ArrayLiteralExp::isBool(int result) | |
| 2552 { | |
| 2553 size_t dim = elements ? elements->dim : 0; | |
| 2554 return result ? (dim != 0) : (dim == 0); | |
| 2555 } | |
| 2556 | |
| 2557 void ArrayLiteralExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2558 { | |
| 2559 buf->writeByte('['); | |
| 2560 argsToCBuffer(buf, elements, hgs); | |
| 2561 buf->writeByte(']'); | |
| 2562 } | |
| 2563 | |
| 2564 void ArrayLiteralExp::toMangleBuffer(OutBuffer *buf) | |
| 2565 { | |
| 2566 size_t dim = elements ? elements->dim : 0; | |
| 2567 buf->printf("A%u", dim); | |
| 2568 for (size_t i = 0; i < dim; i++) | |
| 2569 { Expression *e = (Expression *)elements->data[i]; | |
| 2570 e->toMangleBuffer(buf); | |
| 2571 } | |
| 2572 } | |
| 2573 | |
| 2574 /************************ AssocArrayLiteralExp ************************************/ | |
| 2575 | |
| 2576 // [ key0 : value0, key1 : value1, ... ] | |
| 2577 | |
| 2578 AssocArrayLiteralExp::AssocArrayLiteralExp(Loc loc, | |
| 2579 Expressions *keys, Expressions *values) | |
| 2580 : Expression(loc, TOKassocarrayliteral, sizeof(AssocArrayLiteralExp)) | |
| 2581 { | |
| 2582 assert(keys->dim == values->dim); | |
| 2583 this->keys = keys; | |
| 2584 this->values = values; | |
| 2585 } | |
| 2586 | |
| 2587 Expression *AssocArrayLiteralExp::syntaxCopy() | |
| 2588 { | |
| 2589 return new AssocArrayLiteralExp(loc, | |
| 2590 arraySyntaxCopy(keys), arraySyntaxCopy(values)); | |
| 2591 } | |
| 2592 | |
| 2593 Expression *AssocArrayLiteralExp::semantic(Scope *sc) | |
| 2594 { Expression *e; | |
| 2595 Type *tkey = NULL; | |
| 2596 Type *tvalue = NULL; | |
| 2597 | |
| 2598 #if LOGSEMANTIC | |
| 2599 printf("AssocArrayLiteralExp::semantic('%s')\n", toChars()); | |
| 2600 #endif | |
| 2601 | |
| 2602 // Run semantic() on each element | |
| 2603 for (size_t i = 0; i < keys->dim; i++) | |
| 2604 { Expression *key = (Expression *)keys->data[i]; | |
| 2605 Expression *value = (Expression *)values->data[i]; | |
| 2606 | |
| 2607 key = key->semantic(sc); | |
| 2608 value = value->semantic(sc); | |
| 2609 | |
| 2610 keys->data[i] = (void *)key; | |
| 2611 values->data[i] = (void *)value; | |
| 2612 } | |
| 2613 expandTuples(keys); | |
| 2614 expandTuples(values); | |
| 2615 if (keys->dim != values->dim) | |
| 2616 { | |
| 2617 error("number of keys is %u, must match number of values %u", keys->dim, values->dim); | |
| 2618 keys->setDim(0); | |
| 2619 values->setDim(0); | |
| 2620 } | |
| 2621 for (size_t i = 0; i < keys->dim; i++) | |
| 2622 { Expression *key = (Expression *)keys->data[i]; | |
| 2623 Expression *value = (Expression *)values->data[i]; | |
| 2624 | |
| 2625 if (!key->type) | |
| 2626 error("%s has no value", key->toChars()); | |
| 2627 if (!value->type) | |
| 2628 error("%s has no value", value->toChars()); | |
| 2629 key = resolveProperties(sc, key); | |
| 2630 value = resolveProperties(sc, value); | |
| 2631 | |
| 2632 if (!tkey) | |
| 2633 tkey = key->type; | |
| 2634 else | |
| 2635 key = key->implicitCastTo(sc, tkey); | |
| 2636 keys->data[i] = (void *)key; | |
| 2637 | |
| 2638 if (!tvalue) | |
| 2639 tvalue = value->type; | |
| 2640 else | |
| 2641 value = value->implicitCastTo(sc, tvalue); | |
| 2642 values->data[i] = (void *)value; | |
| 2643 } | |
| 2644 | |
| 2645 if (!tkey) | |
| 2646 tkey = Type::tvoid; | |
| 2647 if (!tvalue) | |
| 2648 tvalue = Type::tvoid; | |
| 2649 type = new TypeAArray(tvalue, tkey); | |
| 2650 type = type->semantic(loc, sc); | |
| 2651 return this; | |
| 2652 } | |
| 2653 | |
| 2654 int AssocArrayLiteralExp::checkSideEffect(int flag) | |
| 2655 { int f = 0; | |
| 2656 | |
| 2657 for (size_t i = 0; i < keys->dim; i++) | |
| 2658 { Expression *key = (Expression *)keys->data[i]; | |
| 2659 Expression *value = (Expression *)values->data[i]; | |
| 2660 | |
| 2661 f |= key->checkSideEffect(2); | |
| 2662 f |= value->checkSideEffect(2); | |
| 2663 } | |
| 2664 if (flag == 0 && f == 0) | |
| 2665 Expression::checkSideEffect(0); | |
| 2666 return f; | |
| 2667 } | |
| 2668 | |
| 2669 int AssocArrayLiteralExp::isBool(int result) | |
| 2670 { | |
| 2671 size_t dim = keys->dim; | |
| 2672 return result ? (dim != 0) : (dim == 0); | |
| 2673 } | |
| 2674 | |
| 2675 void AssocArrayLiteralExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2676 { | |
| 2677 buf->writeByte('['); | |
| 2678 for (size_t i = 0; i < keys->dim; i++) | |
| 2679 { Expression *key = (Expression *)keys->data[i]; | |
| 2680 Expression *value = (Expression *)values->data[i]; | |
| 2681 | |
| 2682 if (i) | |
| 2683 buf->writeByte(','); | |
| 2684 expToCBuffer(buf, hgs, key, PREC_assign); | |
| 2685 buf->writeByte(':'); | |
| 2686 expToCBuffer(buf, hgs, value, PREC_assign); | |
| 2687 } | |
| 2688 buf->writeByte(']'); | |
| 2689 } | |
| 2690 | |
| 2691 void AssocArrayLiteralExp::toMangleBuffer(OutBuffer *buf) | |
| 2692 { | |
| 2693 size_t dim = keys->dim; | |
| 2694 buf->printf("A%u", dim); | |
| 2695 for (size_t i = 0; i < dim; i++) | |
| 2696 { Expression *key = (Expression *)keys->data[i]; | |
| 2697 Expression *value = (Expression *)values->data[i]; | |
| 2698 | |
| 2699 key->toMangleBuffer(buf); | |
| 2700 value->toMangleBuffer(buf); | |
| 2701 } | |
| 2702 } | |
| 2703 | |
| 2704 /************************ StructLiteralExp ************************************/ | |
| 2705 | |
| 2706 // sd( e1, e2, e3, ... ) | |
| 2707 | |
| 2708 StructLiteralExp::StructLiteralExp(Loc loc, StructDeclaration *sd, Expressions *elements) | |
| 2709 : Expression(loc, TOKstructliteral, sizeof(StructLiteralExp)) | |
| 2710 { | |
| 2711 this->sd = sd; | |
| 2712 this->elements = elements; | |
| 2713 this->sym = NULL; | |
| 2714 this->soffset = 0; | |
| 2715 this->fillHoles = 1; | |
| 2716 } | |
| 2717 | |
| 2718 Expression *StructLiteralExp::syntaxCopy() | |
| 2719 { | |
| 2720 return new StructLiteralExp(loc, sd, arraySyntaxCopy(elements)); | |
| 2721 } | |
| 2722 | |
| 2723 Expression *StructLiteralExp::semantic(Scope *sc) | |
| 2724 { Expression *e; | |
| 2725 | |
| 2726 #if LOGSEMANTIC | |
| 2727 printf("StructLiteralExp::semantic('%s')\n", toChars()); | |
| 2728 #endif | |
| 2729 | |
| 2730 // Run semantic() on each element | |
| 2731 for (size_t i = 0; i < elements->dim; i++) | |
| 2732 { e = (Expression *)elements->data[i]; | |
| 2733 if (!e) | |
| 2734 continue; | |
| 2735 e = e->semantic(sc); | |
| 2736 elements->data[i] = (void *)e; | |
| 2737 } | |
| 2738 expandTuples(elements); | |
| 2739 size_t offset = 0; | |
| 2740 for (size_t i = 0; i < elements->dim; i++) | |
| 2741 { e = (Expression *)elements->data[i]; | |
| 2742 if (!e) | |
| 2743 continue; | |
| 2744 | |
| 2745 if (!e->type) | |
| 2746 error("%s has no value", e->toChars()); | |
| 2747 e = resolveProperties(sc, e); | |
| 2748 if (i >= sd->fields.dim) | |
| 2749 { error("more initializers than fields of %s", sd->toChars()); | |
| 2750 break; | |
| 2751 } | |
| 2752 Dsymbol *s = (Dsymbol *)sd->fields.data[i]; | |
| 2753 VarDeclaration *v = s->isVarDeclaration(); | |
| 2754 assert(v); | |
| 2755 if (v->offset < offset) | |
| 2756 error("overlapping initialization for %s", v->toChars()); | |
| 2757 offset = v->offset + v->type->size(); | |
| 2758 | |
| 2759 Type *telem = v->type; | |
| 2760 while (!e->implicitConvTo(telem) && telem->toBasetype()->ty == Tsarray) | |
| 2761 { /* Static array initialization, as in: | |
| 2762 * T[3][5] = e; | |
| 2763 */ | |
| 2764 telem = telem->toBasetype()->nextOf(); | |
| 2765 } | |
| 2766 | |
| 2767 e = e->implicitCastTo(sc, telem); | |
| 2768 | |
| 2769 elements->data[i] = (void *)e; | |
| 2770 } | |
| 2771 | |
| 2772 /* Fill out remainder of elements[] with default initializers for fields[] | |
| 2773 */ | |
| 2774 for (size_t i = elements->dim; i < sd->fields.dim; i++) | |
| 2775 { Dsymbol *s = (Dsymbol *)sd->fields.data[i]; | |
| 2776 VarDeclaration *v = s->isVarDeclaration(); | |
| 2777 assert(v); | |
| 2778 | |
| 2779 if (v->offset < offset) | |
| 2780 { e = NULL; | |
| 2781 sd->hasUnions = 1; | |
| 2782 } | |
| 2783 else | |
| 2784 { | |
| 2785 if (v->init) | |
| 2786 { e = v->init->toExpression(); | |
| 2787 if (!e) | |
| 2788 error("cannot make expression out of initializer for %s", v->toChars()); | |
| 2789 } | |
| 2790 else | |
| 2791 { e = v->type->defaultInit(); | |
| 2792 e->loc = loc; | |
| 2793 } | |
| 2794 offset = v->offset + v->type->size(); | |
| 2795 } | |
| 2796 elements->push(e); | |
| 2797 } | |
| 2798 | |
| 2799 type = sd->type; | |
| 2800 return this; | |
| 2801 } | |
| 2802 | |
| 2803 /************************************** | |
| 2804 * Gets expression at offset of type. | |
| 2805 * Returns NULL if not found. | |
| 2806 */ | |
| 2807 | |
| 2808 Expression *StructLiteralExp::getField(Type *type, unsigned offset) | |
| 2809 { Expression *e = NULL; | |
| 2810 int i = getFieldIndex(type, offset); | |
| 2811 | |
| 2812 if (i != -1) | |
| 2813 { e = (Expression *)elements->data[i]; | |
| 2814 if (e) | |
| 2815 { | |
| 2816 e = e->copy(); | |
| 2817 e->type = type; | |
| 2818 } | |
| 2819 } | |
| 2820 return e; | |
| 2821 } | |
| 2822 | |
| 2823 /************************************ | |
| 2824 * Get index of field. | |
| 2825 * Returns -1 if not found. | |
| 2826 */ | |
| 2827 | |
| 2828 int StructLiteralExp::getFieldIndex(Type *type, unsigned offset) | |
| 2829 { | |
| 2830 /* Find which field offset is by looking at the field offsets | |
| 2831 */ | |
| 2832 for (size_t i = 0; i < sd->fields.dim; i++) | |
| 2833 { | |
| 2834 Dsymbol *s = (Dsymbol *)sd->fields.data[i]; | |
| 2835 VarDeclaration *v = s->isVarDeclaration(); | |
| 2836 assert(v); | |
| 2837 | |
| 2838 if (offset == v->offset && | |
| 2839 type->size() == v->type->size()) | |
| 2840 { Expression *e = (Expression *)elements->data[i]; | |
| 2841 if (e) | |
| 2842 { | |
| 2843 return i; | |
| 2844 } | |
| 2845 break; | |
| 2846 } | |
| 2847 } | |
| 2848 return -1; | |
| 2849 } | |
| 2850 | |
| 2851 | |
| 2852 Expression *StructLiteralExp::toLvalue(Scope *sc, Expression *e) | |
| 2853 { | |
| 2854 return this; | |
| 2855 } | |
| 2856 | |
| 2857 | |
| 2858 int StructLiteralExp::checkSideEffect(int flag) | |
| 2859 { int f = 0; | |
| 2860 | |
| 2861 for (size_t i = 0; i < elements->dim; i++) | |
| 2862 { Expression *e = (Expression *)elements->data[i]; | |
| 2863 if (!e) | |
| 2864 continue; | |
| 2865 | |
| 2866 f |= e->checkSideEffect(2); | |
| 2867 } | |
| 2868 if (flag == 0 && f == 0) | |
| 2869 Expression::checkSideEffect(0); | |
| 2870 return f; | |
| 2871 } | |
| 2872 | |
| 2873 void StructLiteralExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2874 { | |
| 2875 buf->writestring(sd->toChars()); | |
| 2876 buf->writeByte('('); | |
| 2877 argsToCBuffer(buf, elements, hgs); | |
| 2878 buf->writeByte(')'); | |
| 2879 } | |
| 2880 | |
| 2881 void StructLiteralExp::toMangleBuffer(OutBuffer *buf) | |
| 2882 { | |
| 2883 size_t dim = elements ? elements->dim : 0; | |
| 2884 buf->printf("S%u", dim); | |
| 2885 for (size_t i = 0; i < dim; i++) | |
| 2886 { Expression *e = (Expression *)elements->data[i]; | |
| 2887 if (e) | |
| 2888 e->toMangleBuffer(buf); | |
| 2889 else | |
| 2890 buf->writeByte('v'); // 'v' for void | |
| 2891 } | |
| 2892 } | |
| 2893 | |
| 2894 /************************ TypeDotIdExp ************************************/ | |
| 2895 | |
| 2896 /* Things like: | |
| 2897 * int.size | |
| 2898 * foo.size | |
| 2899 * (foo).size | |
| 2900 * cast(foo).size | |
| 2901 */ | |
| 2902 | |
| 2903 TypeDotIdExp::TypeDotIdExp(Loc loc, Type *type, Identifier *ident) | |
| 2904 : Expression(loc, TOKtypedot, sizeof(TypeDotIdExp)) | |
| 2905 { | |
| 2906 this->type = type; | |
| 2907 this->ident = ident; | |
| 2908 } | |
| 2909 | |
| 2910 Expression *TypeDotIdExp::syntaxCopy() | |
| 2911 { | |
| 2912 TypeDotIdExp *te = new TypeDotIdExp(loc, type->syntaxCopy(), ident); | |
| 2913 return te; | |
| 2914 } | |
| 2915 | |
| 2916 Expression *TypeDotIdExp::semantic(Scope *sc) | |
| 2917 { Expression *e; | |
| 2918 | |
| 2919 #if LOGSEMANTIC | |
| 2920 printf("TypeDotIdExp::semantic()\n"); | |
| 2921 #endif | |
| 2922 e = new DotIdExp(loc, new TypeExp(loc, type), ident); | |
| 2923 e = e->semantic(sc); | |
| 2924 return e; | |
| 2925 } | |
| 2926 | |
| 2927 void TypeDotIdExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2928 { | |
| 2929 buf->writeByte('('); | |
| 2930 type->toCBuffer(buf, NULL, hgs); | |
| 2931 buf->writeByte(')'); | |
| 2932 buf->writeByte('.'); | |
| 2933 buf->writestring(ident->toChars()); | |
| 2934 } | |
| 2935 | |
| 2936 /************************************************************/ | |
| 2937 | |
| 2938 // Mainly just a placeholder | |
| 2939 | |
| 2940 TypeExp::TypeExp(Loc loc, Type *type) | |
| 2941 : Expression(loc, TOKtype, sizeof(TypeExp)) | |
| 2942 { | |
| 2943 //printf("TypeExp::TypeExp(%s)\n", type->toChars()); | |
| 2944 this->type = type; | |
| 2945 } | |
| 2946 | |
| 2947 Expression *TypeExp::semantic(Scope *sc) | |
| 2948 { | |
| 2949 //printf("TypeExp::semantic(%s)\n", type->toChars()); | |
| 2950 type = type->semantic(loc, sc); | |
| 2951 return this; | |
| 2952 } | |
| 2953 | |
| 2954 void TypeExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2955 { | |
| 2956 type->toCBuffer(buf, NULL, hgs); | |
| 2957 } | |
| 2958 | |
| 2959 /************************************************************/ | |
| 2960 | |
| 2961 // Mainly just a placeholder | |
| 2962 | |
| 2963 ScopeExp::ScopeExp(Loc loc, ScopeDsymbol *pkg) | |
| 2964 : Expression(loc, TOKimport, sizeof(ScopeExp)) | |
| 2965 { | |
| 2966 //printf("ScopeExp::ScopeExp(pkg = '%s')\n", pkg->toChars()); | |
| 2967 //static int count; if (++count == 38) *(char*)0=0; | |
| 2968 this->sds = pkg; | |
| 2969 } | |
| 2970 | |
| 2971 Expression *ScopeExp::syntaxCopy() | |
| 2972 { | |
| 2973 ScopeExp *se = new ScopeExp(loc, (ScopeDsymbol *)sds->syntaxCopy(NULL)); | |
| 2974 return se; | |
| 2975 } | |
| 2976 | |
| 2977 Expression *ScopeExp::semantic(Scope *sc) | |
| 2978 { | |
| 2979 TemplateInstance *ti; | |
| 2980 ScopeDsymbol *sds2; | |
| 2981 | |
| 2982 #if LOGSEMANTIC | |
| 2983 printf("+ScopeExp::semantic('%s')\n", toChars()); | |
| 2984 #endif | |
| 2985 Lagain: | |
| 2986 ti = sds->isTemplateInstance(); | |
| 2987 if (ti && !global.errors) | |
| 2988 { Dsymbol *s; | |
| 2989 if (!ti->semanticdone) | |
| 2990 ti->semantic(sc); | |
| 2991 s = ti->inst->toAlias(); | |
| 2992 sds2 = s->isScopeDsymbol(); | |
| 2993 if (!sds2) | |
| 2994 { Expression *e; | |
| 2995 | |
| 2996 //printf("s = %s, '%s'\n", s->kind(), s->toChars()); | |
| 2997 if (ti->withsym) | |
| 2998 { | |
| 2999 // Same as wthis.s | |
| 3000 e = new VarExp(loc, ti->withsym->withstate->wthis); | |
| 3001 e = new DotVarExp(loc, e, s->isDeclaration()); | |
| 3002 } | |
| 3003 else | |
| 3004 e = new DsymbolExp(loc, s); | |
| 3005 e = e->semantic(sc); | |
| 3006 //printf("-1ScopeExp::semantic()\n"); | |
| 3007 return e; | |
| 3008 } | |
| 3009 if (sds2 != sds) | |
| 3010 { | |
| 3011 sds = sds2; | |
| 3012 goto Lagain; | |
| 3013 } | |
| 3014 //printf("sds = %s, '%s'\n", sds->kind(), sds->toChars()); | |
| 3015 } | |
| 3016 else | |
| 3017 { | |
| 3018 //printf("sds = %s, '%s'\n", sds->kind(), sds->toChars()); | |
| 3019 //printf("\tparent = '%s'\n", sds->parent->toChars()); | |
| 3020 sds->semantic(sc); | |
| 3021 } | |
| 3022 type = Type::tvoid; | |
| 3023 //printf("-2ScopeExp::semantic() %s\n", toChars()); | |
| 3024 return this; | |
| 3025 } | |
| 3026 | |
| 3027 void ScopeExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3028 { | |
| 3029 if (sds->isTemplateInstance()) | |
| 3030 { | |
| 3031 sds->toCBuffer(buf, hgs); | |
| 3032 } | |
| 3033 else | |
| 3034 { | |
| 3035 buf->writestring(sds->kind()); | |
| 3036 buf->writestring(" "); | |
| 3037 buf->writestring(sds->toChars()); | |
| 3038 } | |
| 3039 } | |
| 3040 | |
| 3041 /********************** TemplateExp **************************************/ | |
| 3042 | |
| 3043 // Mainly just a placeholder | |
| 3044 | |
| 3045 TemplateExp::TemplateExp(Loc loc, TemplateDeclaration *td) | |
| 3046 : Expression(loc, TOKtemplate, sizeof(TemplateExp)) | |
| 3047 { | |
| 3048 //printf("TemplateExp(): %s\n", td->toChars()); | |
| 3049 this->td = td; | |
| 3050 } | |
| 3051 | |
| 3052 void TemplateExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3053 { | |
| 3054 buf->writestring(td->toChars()); | |
| 3055 } | |
| 3056 | |
| 3057 void TemplateExp::rvalue() | |
| 3058 { | |
| 3059 error("template %s has no value", toChars()); | |
| 3060 } | |
| 3061 | |
| 3062 /********************** NewExp **************************************/ | |
| 3063 | |
| 3064 NewExp::NewExp(Loc loc, Expression *thisexp, Expressions *newargs, | |
| 3065 Type *newtype, Expressions *arguments) | |
| 3066 : Expression(loc, TOKnew, sizeof(NewExp)) | |
| 3067 { | |
| 3068 this->thisexp = thisexp; | |
| 3069 this->newargs = newargs; | |
| 3070 this->newtype = newtype; | |
| 3071 this->arguments = arguments; | |
| 3072 member = NULL; | |
| 3073 allocator = NULL; | |
| 3074 onstack = 0; | |
| 3075 } | |
| 3076 | |
| 3077 Expression *NewExp::syntaxCopy() | |
| 3078 { | |
| 3079 return new NewExp(loc, | |
| 3080 thisexp ? thisexp->syntaxCopy() : NULL, | |
| 3081 arraySyntaxCopy(newargs), | |
| 3082 newtype->syntaxCopy(), arraySyntaxCopy(arguments)); | |
| 3083 } | |
| 3084 | |
| 3085 | |
| 3086 Expression *NewExp::semantic(Scope *sc) | |
| 3087 { int i; | |
| 3088 Type *tb; | |
| 3089 ClassDeclaration *cdthis = NULL; | |
| 3090 | |
| 3091 #if LOGSEMANTIC | |
| 3092 printf("NewExp::semantic() %s\n", toChars()); | |
| 3093 if (thisexp) | |
| 3094 printf("\tthisexp = %s\n", thisexp->toChars()); | |
| 3095 printf("\tnewtype: %s\n", newtype->toChars()); | |
| 3096 #endif | |
| 3097 if (type) // if semantic() already run | |
| 3098 return this; | |
| 3099 | |
| 3100 Lagain: | |
| 3101 if (thisexp) | |
| 3102 { thisexp = thisexp->semantic(sc); | |
| 3103 cdthis = thisexp->type->isClassHandle(); | |
| 3104 if (cdthis) | |
| 3105 { | |
| 3106 sc = sc->push(cdthis); | |
| 3107 type = newtype->semantic(loc, sc); | |
| 3108 sc = sc->pop(); | |
| 3109 } | |
| 3110 else | |
| 3111 { | |
| 3112 error("'this' for nested class must be a class type, not %s", thisexp->type->toChars()); | |
| 3113 type = newtype->semantic(loc, sc); | |
| 3114 } | |
| 3115 } | |
| 3116 else | |
| 3117 type = newtype->semantic(loc, sc); | |
| 3118 newtype = type; // in case type gets cast to something else | |
| 3119 tb = type->toBasetype(); | |
| 3120 //printf("tb: %s, deco = %s\n", tb->toChars(), tb->deco); | |
| 3121 | |
| 3122 arrayExpressionSemantic(newargs, sc); | |
| 3123 preFunctionArguments(loc, sc, newargs); | |
| 3124 arrayExpressionSemantic(arguments, sc); | |
| 3125 preFunctionArguments(loc, sc, arguments); | |
| 3126 | |
| 3127 if (thisexp && tb->ty != Tclass) | |
| 3128 error("e.new is only for allocating nested classes, not %s", tb->toChars()); | |
| 3129 | |
| 3130 if (tb->ty == Tclass) | |
| 3131 { TypeFunction *tf; | |
| 3132 | |
| 3133 TypeClass *tc = (TypeClass *)(tb); | |
| 3134 ClassDeclaration *cd = tc->sym->isClassDeclaration(); | |
| 3135 if (cd->isInterfaceDeclaration()) | |
| 3136 error("cannot create instance of interface %s", cd->toChars()); | |
| 3137 else if (cd->isAbstract()) | |
| 3138 error("cannot create instance of abstract class %s", cd->toChars()); | |
| 3139 checkDeprecated(sc, cd); | |
| 3140 if (cd->isNested()) | |
| 3141 { /* We need a 'this' pointer for the nested class. | |
| 3142 * Ensure we have the right one. | |
| 3143 */ | |
| 3144 Dsymbol *s = cd->toParent2(); | |
| 3145 ClassDeclaration *cdn = s->isClassDeclaration(); | |
| 3146 | |
| 3147 //printf("isNested, cdn = %s\n", cdn ? cdn->toChars() : "null"); | |
| 3148 if (cdn) | |
| 3149 { | |
| 3150 if (!cdthis) | |
| 3151 { | |
| 3152 // Supply an implicit 'this' and try again | |
| 3153 thisexp = new ThisExp(loc); | |
| 3154 for (Dsymbol *sp = sc->parent; 1; sp = sp->parent) | |
| 3155 { if (!sp) | |
| 3156 { | |
| 3157 error("outer class %s 'this' needed to 'new' nested class %s", cdn->toChars(), cd->toChars()); | |
| 3158 break; | |
| 3159 } | |
| 3160 ClassDeclaration *cdp = sp->isClassDeclaration(); | |
| 3161 if (!cdp) | |
| 3162 continue; | |
| 3163 if (cdp == cdn || cdn->isBaseOf(cdp, NULL)) | |
| 3164 break; | |
| 3165 // Add a '.outer' and try again | |
| 3166 thisexp = new DotIdExp(loc, thisexp, Id::outer); | |
| 3167 } | |
| 3168 if (!global.errors) | |
| 3169 goto Lagain; | |
| 3170 } | |
| 3171 if (cdthis) | |
| 3172 { | |
| 3173 //printf("cdthis = %s\n", cdthis->toChars()); | |
| 3174 if (cdthis != cdn && !cdn->isBaseOf(cdthis, NULL)) | |
| 3175 error("'this' for nested class must be of type %s, not %s", cdn->toChars(), thisexp->type->toChars()); | |
| 3176 } | |
| 3177 #if 0 | |
| 3178 else | |
| 3179 { | |
| 3180 for (Dsymbol *sf = sc->func; 1; sf= sf->toParent2()->isFuncDeclaration()) | |
| 3181 { | |
| 3182 if (!sf) | |
| 3183 { | |
| 3184 error("outer class %s 'this' needed to 'new' nested class %s", cdn->toChars(), cd->toChars()); | |
| 3185 break; | |
| 3186 } | |
| 3187 printf("sf = %s\n", sf->toChars()); | |
| 3188 AggregateDeclaration *ad = sf->isThis(); | |
| 3189 if (ad && (ad == cdn || cdn->isBaseOf(ad->isClassDeclaration(), NULL))) | |
| 3190 break; | |
| 3191 } | |
| 3192 } | |
| 3193 #endif | |
| 3194 } | |
| 3195 else if (thisexp) | |
| 3196 error("e.new is only for allocating nested classes"); | |
| 3197 } | |
| 3198 else if (thisexp) | |
| 3199 error("e.new is only for allocating nested classes"); | |
| 3200 | |
| 3201 FuncDeclaration *f = cd->ctor; | |
| 3202 if (f) | |
| 3203 { | |
| 3204 assert(f); | |
| 3205 f = f->overloadResolve(loc, arguments); | |
| 3206 checkDeprecated(sc, f); | |
| 3207 member = f->isCtorDeclaration(); | |
| 3208 assert(member); | |
| 3209 | |
| 3210 cd->accessCheck(loc, sc, member); | |
| 3211 | |
| 3212 tf = (TypeFunction *)f->type; | |
| 3213 type = tf->next; | |
| 3214 | |
| 3215 if (!arguments) | |
| 3216 arguments = new Expressions(); | |
| 3217 functionArguments(loc, sc, tf, arguments); | |
| 3218 } | |
| 3219 else | |
| 3220 { | |
| 3221 if (arguments && arguments->dim) | |
| 3222 error("no constructor for %s", cd->toChars()); | |
| 3223 } | |
| 3224 | |
| 3225 if (cd->aggNew) | |
| 3226 { Expression *e; | |
| 3227 | |
| 3228 f = cd->aggNew; | |
| 3229 | |
| 3230 // Prepend the uint size argument to newargs[] | |
| 3231 e = new IntegerExp(loc, cd->size(loc), Type::tuns32); | |
| 3232 if (!newargs) | |
| 3233 newargs = new Expressions(); | |
| 3234 newargs->shift(e); | |
| 3235 | |
| 3236 f = f->overloadResolve(loc, newargs); | |
| 3237 allocator = f->isNewDeclaration(); | |
| 3238 assert(allocator); | |
| 3239 | |
| 3240 tf = (TypeFunction *)f->type; | |
| 3241 functionArguments(loc, sc, tf, newargs); | |
| 3242 } | |
| 3243 else | |
| 3244 { | |
| 3245 if (newargs && newargs->dim) | |
| 3246 error("no allocator for %s", cd->toChars()); | |
| 3247 } | |
| 3248 | |
| 3249 } | |
| 3250 else if (tb->ty == Tstruct) | |
| 3251 { | |
| 3252 TypeStruct *ts = (TypeStruct *)tb; | |
| 3253 StructDeclaration *sd = ts->sym; | |
| 3254 FuncDeclaration *f = sd->aggNew; | |
| 3255 TypeFunction *tf; | |
| 3256 | |
| 3257 if (arguments && arguments->dim) | |
| 3258 error("no constructor for %s", type->toChars()); | |
| 3259 | |
| 3260 if (f) | |
| 3261 { | |
| 3262 Expression *e; | |
| 3263 | |
| 3264 // Prepend the uint size argument to newargs[] | |
| 3265 e = new IntegerExp(loc, sd->size(loc), Type::tuns32); | |
| 3266 if (!newargs) | |
| 3267 newargs = new Expressions(); | |
| 3268 newargs->shift(e); | |
| 3269 | |
| 3270 f = f->overloadResolve(loc, newargs); | |
| 3271 allocator = f->isNewDeclaration(); | |
| 3272 assert(allocator); | |
| 3273 | |
| 3274 tf = (TypeFunction *)f->type; | |
| 3275 functionArguments(loc, sc, tf, newargs); | |
| 3276 | |
| 3277 e = new VarExp(loc, f); | |
| 3278 e = new CallExp(loc, e, newargs); | |
| 3279 e = e->semantic(sc); | |
| 3280 e->type = type->pointerTo(); | |
| 3281 return e; | |
| 3282 } | |
| 3283 | |
| 3284 type = type->pointerTo(); | |
| 3285 } | |
| 3286 else if (tb->ty == Tarray && (arguments && arguments->dim)) | |
| 3287 { | |
| 3288 for (size_t i = 0; i < arguments->dim; i++) | |
| 3289 { | |
| 3290 if (tb->ty != Tarray) | |
| 3291 { error("too many arguments for array"); | |
| 3292 arguments->dim = i; | |
| 3293 break; | |
| 3294 } | |
| 3295 | |
| 3296 Expression *arg = (Expression *)arguments->data[i]; | |
| 3297 arg = resolveProperties(sc, arg); | |
| 3298 arg = arg->implicitCastTo(sc, Type::tsize_t); | |
| 3299 if (arg->op == TOKint64 && (long long)arg->toInteger() < 0) | |
| 3300 error("negative array index %s", arg->toChars()); | |
| 3301 arguments->data[i] = (void *) arg; | |
| 3302 tb = tb->next->toBasetype(); | |
| 3303 } | |
| 3304 } | |
| 3305 else if (tb->isscalar()) | |
| 3306 { | |
| 3307 if (arguments && arguments->dim) | |
| 3308 error("no constructor for %s", type->toChars()); | |
| 3309 | |
| 3310 type = type->pointerTo(); | |
| 3311 } | |
| 3312 else | |
| 3313 { | |
| 3314 error("new can only create structs, dynamic arrays or class objects, not %s's", type->toChars()); | |
| 3315 type = type->pointerTo(); | |
| 3316 } | |
| 3317 | |
| 3318 //printf("NewExp: '%s'\n", toChars()); | |
| 3319 //printf("NewExp:type '%s'\n", type->toChars()); | |
| 3320 | |
| 3321 return this; | |
| 3322 } | |
| 3323 | |
| 3324 int NewExp::checkSideEffect(int flag) | |
| 3325 { | |
| 3326 return 1; | |
| 3327 } | |
| 3328 | |
| 3329 void NewExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3330 { int i; | |
| 3331 | |
| 3332 if (thisexp) | |
| 3333 { expToCBuffer(buf, hgs, thisexp, PREC_primary); | |
| 3334 buf->writeByte('.'); | |
| 3335 } | |
| 3336 buf->writestring("new "); | |
| 3337 if (newargs && newargs->dim) | |
| 3338 { | |
| 3339 buf->writeByte('('); | |
| 3340 argsToCBuffer(buf, newargs, hgs); | |
| 3341 buf->writeByte(')'); | |
| 3342 } | |
| 3343 newtype->toCBuffer(buf, NULL, hgs); | |
| 3344 if (arguments && arguments->dim) | |
| 3345 { | |
| 3346 buf->writeByte('('); | |
| 3347 argsToCBuffer(buf, arguments, hgs); | |
| 3348 buf->writeByte(')'); | |
| 3349 } | |
| 3350 } | |
| 3351 | |
| 3352 /********************** NewAnonClassExp **************************************/ | |
| 3353 | |
| 3354 NewAnonClassExp::NewAnonClassExp(Loc loc, Expression *thisexp, | |
| 3355 Expressions *newargs, ClassDeclaration *cd, Expressions *arguments) | |
| 3356 : Expression(loc, TOKnewanonclass, sizeof(NewAnonClassExp)) | |
| 3357 { | |
| 3358 this->thisexp = thisexp; | |
| 3359 this->newargs = newargs; | |
| 3360 this->cd = cd; | |
| 3361 this->arguments = arguments; | |
| 3362 } | |
| 3363 | |
| 3364 Expression *NewAnonClassExp::syntaxCopy() | |
| 3365 { | |
| 3366 return new NewAnonClassExp(loc, | |
| 3367 thisexp ? thisexp->syntaxCopy() : NULL, | |
| 3368 arraySyntaxCopy(newargs), | |
| 3369 (ClassDeclaration *)cd->syntaxCopy(NULL), | |
| 3370 arraySyntaxCopy(arguments)); | |
| 3371 } | |
| 3372 | |
| 3373 | |
| 3374 Expression *NewAnonClassExp::semantic(Scope *sc) | |
| 3375 { | |
| 3376 #if LOGSEMANTIC | |
| 3377 printf("NewAnonClassExp::semantic() %s\n", toChars()); | |
| 3378 //printf("type: %s\n", type->toChars()); | |
| 3379 #endif | |
| 3380 | |
| 3381 Expression *d = new DeclarationExp(loc, cd); | |
| 3382 d = d->semantic(sc); | |
| 3383 | |
| 3384 Expression *n = new NewExp(loc, thisexp, newargs, cd->type, arguments); | |
| 3385 | |
| 3386 Expression *c = new CommaExp(loc, d, n); | |
| 3387 return c->semantic(sc); | |
| 3388 } | |
| 3389 | |
| 3390 int NewAnonClassExp::checkSideEffect(int flag) | |
| 3391 { | |
| 3392 return 1; | |
| 3393 } | |
| 3394 | |
| 3395 void NewAnonClassExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3396 { int i; | |
| 3397 | |
| 3398 if (thisexp) | |
| 3399 { expToCBuffer(buf, hgs, thisexp, PREC_primary); | |
| 3400 buf->writeByte('.'); | |
| 3401 } | |
| 3402 buf->writestring("new"); | |
| 3403 if (newargs && newargs->dim) | |
| 3404 { | |
| 3405 buf->writeByte('('); | |
| 3406 argsToCBuffer(buf, newargs, hgs); | |
| 3407 buf->writeByte(')'); | |
| 3408 } | |
| 3409 buf->writestring(" class "); | |
| 3410 if (arguments && arguments->dim) | |
| 3411 { | |
| 3412 buf->writeByte('('); | |
| 3413 argsToCBuffer(buf, arguments, hgs); | |
| 3414 buf->writeByte(')'); | |
| 3415 } | |
| 3416 //buf->writestring(" { }"); | |
| 3417 if (cd) | |
| 3418 { | |
| 3419 cd->toCBuffer(buf, hgs); | |
| 3420 } | |
| 3421 } | |
| 3422 | |
| 3423 /********************** SymOffExp **************************************/ | |
| 3424 | |
| 3425 SymOffExp::SymOffExp(Loc loc, Declaration *var, unsigned offset) | |
| 3426 : Expression(loc, TOKsymoff, sizeof(SymOffExp)) | |
| 3427 { | |
| 3428 assert(var); | |
| 3429 this->var = var; | |
| 3430 this->offset = offset; | |
| 3431 VarDeclaration *v = var->isVarDeclaration(); | |
| 3432 if (v && v->needThis()) | |
| 3433 error("need 'this' for address of %s", v->toChars()); | |
| 3434 } | |
| 3435 | |
| 3436 Expression *SymOffExp::semantic(Scope *sc) | |
| 3437 { | |
| 3438 #if LOGSEMANTIC | |
| 3439 printf("SymOffExp::semantic('%s')\n", toChars()); | |
| 3440 #endif | |
| 3441 //var->semantic(sc); | |
| 3442 if (!type) | |
| 3443 type = var->type->pointerTo(); | |
| 3444 VarDeclaration *v = var->isVarDeclaration(); | |
| 3445 if (v) | |
| 3446 v->checkNestedReference(sc, loc); | |
| 3447 return this; | |
| 3448 } | |
| 3449 | |
| 3450 int SymOffExp::isBool(int result) | |
| 3451 { | |
| 3452 return result ? TRUE : FALSE; | |
| 3453 } | |
| 3454 | |
| 3455 void SymOffExp::checkEscape() | |
| 3456 { | |
| 3457 VarDeclaration *v = var->isVarDeclaration(); | |
| 3458 if (v) | |
| 3459 { | |
| 3460 if (!v->isDataseg()) | |
| 3461 error("escaping reference to local variable %s", v->toChars()); | |
| 3462 } | |
| 3463 } | |
| 3464 | |
| 3465 void SymOffExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3466 { | |
| 3467 if (offset) | |
| 3468 buf->printf("(& %s+%u)", var->toChars(), offset); | |
| 3469 else | |
| 3470 buf->printf("& %s", var->toChars()); | |
| 3471 } | |
| 3472 | |
| 3473 /******************************** VarExp **************************/ | |
| 3474 | |
| 3475 VarExp::VarExp(Loc loc, Declaration *var) | |
| 3476 : Expression(loc, TOKvar, sizeof(VarExp)) | |
| 3477 { | |
| 3478 //printf("VarExp(this = %p, '%s')\n", this, var->toChars()); | |
| 3479 this->var = var; | |
| 3480 this->type = var->type; | |
| 3481 } | |
| 3482 | |
| 3483 int VarExp::equals(Object *o) | |
| 3484 { VarExp *ne; | |
| 3485 | |
| 3486 if (this == o || | |
| 3487 (((Expression *)o)->op == TOKvar && | |
| 3488 ((ne = (VarExp *)o), type->equals(ne->type)) && | |
| 3489 var == ne->var)) | |
| 3490 return 1; | |
| 3491 return 0; | |
| 3492 } | |
| 3493 | |
| 3494 Expression *VarExp::semantic(Scope *sc) | |
| 3495 { FuncLiteralDeclaration *fd; | |
| 3496 | |
| 3497 #if LOGSEMANTIC | |
| 3498 printf("VarExp::semantic(%s)\n", toChars()); | |
| 3499 #endif | |
| 3500 if (!type) | |
| 3501 { type = var->type; | |
| 3502 #if 0 | |
| 3503 if (var->storage_class & STClazy) | |
| 3504 { | |
| 3505 TypeFunction *tf = new TypeFunction(NULL, type, 0, LINKd); | |
| 3506 type = new TypeDelegate(tf); | |
| 3507 type = type->semantic(loc, sc); | |
| 3508 } | |
| 3509 #endif | |
| 3510 } | |
| 3511 | |
| 3512 VarDeclaration *v = var->isVarDeclaration(); | |
| 3513 if (v) | |
| 3514 { | |
| 3515 if (v->isConst() && type->toBasetype()->ty != Tsarray && v->init) | |
| 3516 { | |
| 3517 ExpInitializer *ei = v->init->isExpInitializer(); | |
| 3518 if (ei) | |
| 3519 { | |
| 3520 //ei->exp->implicitCastTo(sc, type)->print(); | |
| 3521 return ei->exp->implicitCastTo(sc, type); | |
| 3522 } | |
| 3523 } | |
| 3524 v->checkNestedReference(sc, loc); | |
| 3525 } | |
| 3526 #if 0 | |
| 3527 else if ((fd = var->isFuncLiteralDeclaration()) != NULL) | |
| 3528 { Expression *e; | |
| 3529 e = new FuncExp(loc, fd); | |
| 3530 e->type = type; | |
| 3531 return e; | |
| 3532 } | |
| 3533 #endif | |
| 3534 return this; | |
| 3535 } | |
| 3536 | |
| 3537 char *VarExp::toChars() | |
| 3538 { | |
| 3539 return var->toChars(); | |
| 3540 } | |
| 3541 | |
| 3542 void VarExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3543 { | |
| 3544 buf->writestring(var->toChars()); | |
| 3545 } | |
| 3546 | |
| 3547 void VarExp::checkEscape() | |
| 3548 { | |
| 3549 VarDeclaration *v = var->isVarDeclaration(); | |
| 3550 if (v) | |
| 3551 { Type *tb = v->type->toBasetype(); | |
| 3552 // if reference type | |
| 3553 if (tb->ty == Tarray || tb->ty == Tsarray || tb->ty == Tclass) | |
| 3554 { | |
| 3555 if ((v->isAuto() || v->isScope()) && !v->noauto) | |
| 3556 error("escaping reference to auto local %s", v->toChars()); | |
| 3557 else if (v->storage_class & STCvariadic) | |
| 3558 error("escaping reference to variadic parameter %s", v->toChars()); | |
| 3559 } | |
| 3560 } | |
| 3561 } | |
| 3562 | |
| 3563 Expression *VarExp::toLvalue(Scope *sc, Expression *e) | |
| 3564 { | |
| 3565 #if 0 | |
| 3566 tym = tybasic(e1->ET->Tty); | |
| 3567 if (!(tyscalar(tym) || | |
| 3568 tym == TYstruct || | |
| 3569 tym == TYarray && e->Eoper == TOKaddr)) | |
| 3570 synerr(EM_lvalue); // lvalue expected | |
| 3571 #endif | |
| 3572 if (var->storage_class & STClazy) | |
| 3573 error("lazy variables cannot be lvalues"); | |
| 3574 return this; | |
| 3575 } | |
| 3576 | |
| 3577 Expression *VarExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 3578 { | |
| 3579 //printf("VarExp::modifiableLvalue('%s')\n", var->toChars()); | |
| 3580 if (sc->incontract && var->isParameter()) | |
| 3581 error("cannot modify parameter '%s' in contract", var->toChars()); | |
| 3582 | |
| 3583 if (type && type->toBasetype()->ty == Tsarray) | |
| 3584 error("cannot change reference to static array '%s'", var->toChars()); | |
| 3585 | |
| 3586 VarDeclaration *v = var->isVarDeclaration(); | |
| 3587 if (v && v->canassign == 0 && | |
| 3588 (var->isConst() || (global.params.Dversion > 1 && var->isFinal()))) | |
| 3589 error("cannot modify final variable '%s'", var->toChars()); | |
| 3590 | |
| 3591 if (var->isCtorinit()) | |
| 3592 { // It's only modifiable if inside the right constructor | |
| 3593 Dsymbol *s = sc->func; | |
| 3594 while (1) | |
| 3595 { | |
| 3596 FuncDeclaration *fd = NULL; | |
| 3597 if (s) | |
| 3598 fd = s->isFuncDeclaration(); | |
| 3599 if (fd && | |
| 3600 ((fd->isCtorDeclaration() && var->storage_class & STCfield) || | |
| 3601 (fd->isStaticCtorDeclaration() && !(var->storage_class & STCfield))) && | |
| 3602 fd->toParent() == var->toParent() | |
| 3603 ) | |
| 3604 { | |
| 3605 VarDeclaration *v = var->isVarDeclaration(); | |
| 3606 assert(v); | |
| 3607 v->ctorinit = 1; | |
| 3608 //printf("setting ctorinit\n"); | |
| 3609 } | |
| 3610 else | |
| 3611 { | |
| 3612 if (s) | |
| 3613 { s = s->toParent2(); | |
| 3614 continue; | |
| 3615 } | |
| 3616 else | |
| 3617 { | |
| 3618 const char *p = var->isStatic() ? "static " : ""; | |
| 3619 error("can only initialize %sconst %s inside %sconstructor", | |
| 3620 p, var->toChars(), p); | |
| 3621 } | |
| 3622 } | |
| 3623 break; | |
| 3624 } | |
| 3625 } | |
| 3626 | |
| 3627 // See if this expression is a modifiable lvalue (i.e. not const) | |
| 3628 return toLvalue(sc, e); | |
| 3629 } | |
| 3630 | |
| 3631 | |
| 3632 /******************************** TupleExp **************************/ | |
| 3633 | |
| 3634 TupleExp::TupleExp(Loc loc, Expressions *exps) | |
| 3635 : Expression(loc, TOKtuple, sizeof(TupleExp)) | |
| 3636 { | |
| 3637 //printf("TupleExp(this = %p)\n", this); | |
| 3638 this->exps = exps; | |
| 3639 this->type = NULL; | |
| 3640 } | |
| 3641 | |
| 3642 | |
| 3643 TupleExp::TupleExp(Loc loc, TupleDeclaration *tup) | |
| 3644 : Expression(loc, TOKtuple, sizeof(TupleExp)) | |
| 3645 { | |
| 3646 exps = new Expressions(); | |
| 3647 type = NULL; | |
| 3648 | |
| 3649 exps->reserve(tup->objects->dim); | |
| 3650 for (size_t i = 0; i < tup->objects->dim; i++) | |
| 3651 { Object *o = (Object *)tup->objects->data[i]; | |
| 3652 if (o->dyncast() == DYNCAST_EXPRESSION) | |
| 3653 { | |
| 3654 Expression *e = (Expression *)o; | |
| 3655 e = e->syntaxCopy(); | |
| 3656 exps->push(e); | |
| 3657 } | |
| 3658 else if (o->dyncast() == DYNCAST_DSYMBOL) | |
| 3659 { | |
| 3660 Dsymbol *s = (Dsymbol *)o; | |
| 3661 Expression *e = new DsymbolExp(loc, s); | |
| 3662 exps->push(e); | |
| 3663 } | |
| 3664 else if (o->dyncast() == DYNCAST_TYPE) | |
| 3665 { | |
| 3666 Type *t = (Type *)o; | |
| 3667 Expression *e = new TypeExp(loc, t); | |
| 3668 exps->push(e); | |
| 3669 } | |
| 3670 else | |
| 3671 { | |
| 3672 error("%s is not an expression", o->toChars()); | |
| 3673 } | |
| 3674 } | |
| 3675 } | |
| 3676 | |
| 3677 int TupleExp::equals(Object *o) | |
| 3678 { TupleExp *ne; | |
| 3679 | |
| 3680 if (this == o) | |
| 3681 return 1; | |
| 3682 if (((Expression *)o)->op == TOKtuple) | |
| 3683 { | |
| 3684 TupleExp *te = (TupleExp *)o; | |
| 3685 if (exps->dim != te->exps->dim) | |
| 3686 return 0; | |
| 3687 for (size_t i = 0; i < exps->dim; i++) | |
| 3688 { Expression *e1 = (Expression *)exps->data[i]; | |
| 3689 Expression *e2 = (Expression *)te->exps->data[i]; | |
| 3690 | |
| 3691 if (!e1->equals(e2)) | |
| 3692 return 0; | |
| 3693 } | |
| 3694 return 1; | |
| 3695 } | |
| 3696 return 0; | |
| 3697 } | |
| 3698 | |
| 3699 Expression *TupleExp::syntaxCopy() | |
| 3700 { | |
| 3701 return new TupleExp(loc, arraySyntaxCopy(exps)); | |
| 3702 } | |
| 3703 | |
| 3704 Expression *TupleExp::semantic(Scope *sc) | |
| 3705 { | |
| 3706 #if LOGSEMANTIC | |
| 3707 printf("+TupleExp::semantic(%s)\n", toChars()); | |
| 3708 #endif | |
| 3709 if (type) | |
| 3710 return this; | |
| 3711 | |
| 3712 // Run semantic() on each argument | |
| 3713 for (size_t i = 0; i < exps->dim; i++) | |
| 3714 { Expression *e = (Expression *)exps->data[i]; | |
| 3715 | |
| 3716 e = e->semantic(sc); | |
| 3717 if (!e->type) | |
| 3718 { error("%s has no value", e->toChars()); | |
| 3719 e->type = Type::terror; | |
| 3720 } | |
| 3721 exps->data[i] = (void *)e; | |
| 3722 } | |
| 3723 | |
| 3724 expandTuples(exps); | |
| 3725 if (0 && exps->dim == 1) | |
| 3726 { | |
| 3727 return (Expression *)exps->data[0]; | |
| 3728 } | |
| 3729 type = new TypeTuple(exps); | |
| 3730 //printf("-TupleExp::semantic(%s)\n", toChars()); | |
| 3731 return this; | |
| 3732 } | |
| 3733 | |
| 3734 void TupleExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3735 { | |
| 3736 buf->writestring("tuple("); | |
| 3737 argsToCBuffer(buf, exps, hgs); | |
| 3738 buf->writeByte(')'); | |
| 3739 } | |
| 3740 | |
| 3741 int TupleExp::checkSideEffect(int flag) | |
| 3742 { int f = 0; | |
| 3743 | |
| 3744 for (int i = 0; i < exps->dim; i++) | |
| 3745 { Expression *e = (Expression *)exps->data[i]; | |
| 3746 | |
| 3747 f |= e->checkSideEffect(2); | |
| 3748 } | |
| 3749 if (flag == 0 && f == 0) | |
| 3750 Expression::checkSideEffect(0); | |
| 3751 return f; | |
| 3752 } | |
| 3753 | |
| 3754 void TupleExp::checkEscape() | |
| 3755 { | |
| 3756 for (size_t i = 0; i < exps->dim; i++) | |
| 3757 { Expression *e = (Expression *)exps->data[i]; | |
| 3758 e->checkEscape(); | |
| 3759 } | |
| 3760 } | |
| 3761 | |
| 3762 /******************************** FuncExp *********************************/ | |
| 3763 | |
| 3764 FuncExp::FuncExp(Loc loc, FuncLiteralDeclaration *fd) | |
| 3765 : Expression(loc, TOKfunction, sizeof(FuncExp)) | |
| 3766 { | |
| 3767 this->fd = fd; | |
| 3768 } | |
| 3769 | |
| 3770 Expression *FuncExp::syntaxCopy() | |
| 3771 { | |
| 3772 return new FuncExp(loc, (FuncLiteralDeclaration *)fd->syntaxCopy(NULL)); | |
| 3773 } | |
| 3774 | |
| 3775 Expression *FuncExp::semantic(Scope *sc) | |
| 3776 { | |
| 3777 #if LOGSEMANTIC | |
| 3778 printf("FuncExp::semantic(%s)\n", toChars()); | |
| 3779 #endif | |
| 3780 if (!type) | |
| 3781 { | |
| 3782 fd->semantic(sc); | |
| 3783 fd->parent = sc->parent; | |
| 3784 if (global.errors) | |
| 3785 { | |
| 3786 if (!fd->type->next) | |
| 3787 fd->type->next = Type::terror; | |
| 3788 } | |
| 3789 else | |
| 3790 { | |
| 3791 fd->semantic2(sc); | |
| 3792 if (!global.errors) | |
| 3793 { | |
| 3794 fd->semantic3(sc); | |
| 3795 | |
| 3796 if (!global.errors && global.params.useInline) | |
| 3797 fd->inlineScan(); | |
| 3798 } | |
| 3799 } | |
| 3800 | |
| 3801 // Type is a "delegate to" or "pointer to" the function literal | |
| 3802 if (fd->isNested()) | |
| 3803 { | |
| 3804 type = new TypeDelegate(fd->type); | |
| 3805 type = type->semantic(loc, sc); | |
| 3806 } | |
| 3807 else | |
| 3808 { | |
| 3809 type = fd->type->pointerTo(); | |
| 3810 } | |
| 3811 } | |
| 3812 return this; | |
| 3813 } | |
| 3814 | |
| 3815 char *FuncExp::toChars() | |
| 3816 { | |
| 3817 return fd->toChars(); | |
| 3818 } | |
| 3819 | |
| 3820 void FuncExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3821 { | |
| 3822 buf->writestring(fd->toChars()); | |
| 3823 } | |
| 3824 | |
| 3825 | |
| 3826 /******************************** DeclarationExp **************************/ | |
| 3827 | |
| 3828 DeclarationExp::DeclarationExp(Loc loc, Dsymbol *declaration) | |
| 3829 : Expression(loc, TOKdeclaration, sizeof(DeclarationExp)) | |
| 3830 { | |
| 3831 this->declaration = declaration; | |
| 3832 } | |
| 3833 | |
| 3834 Expression *DeclarationExp::syntaxCopy() | |
| 3835 { | |
| 3836 return new DeclarationExp(loc, declaration->syntaxCopy(NULL)); | |
| 3837 } | |
| 3838 | |
| 3839 Expression *DeclarationExp::semantic(Scope *sc) | |
| 3840 { | |
| 3841 if (type) | |
| 3842 return this; | |
| 3843 | |
| 3844 #if LOGSEMANTIC | |
| 3845 printf("DeclarationExp::semantic() %s\n", toChars()); | |
| 3846 #endif | |
| 3847 | |
| 3848 /* This is here to support extern(linkage) declaration, | |
| 3849 * where the extern(linkage) winds up being an AttribDeclaration | |
| 3850 * wrapper. | |
| 3851 */ | |
| 3852 Dsymbol *s = declaration; | |
| 3853 | |
| 3854 AttribDeclaration *ad = declaration->isAttribDeclaration(); | |
| 3855 if (ad) | |
| 3856 { | |
| 3857 if (ad->decl && ad->decl->dim == 1) | |
| 3858 s = (Dsymbol *)ad->decl->data[0]; | |
| 3859 } | |
| 3860 | |
| 3861 if (s->isVarDeclaration()) | |
| 3862 { // Do semantic() on initializer first, so: | |
| 3863 // int a = a; | |
| 3864 // will be illegal. | |
| 3865 declaration->semantic(sc); | |
| 3866 s->parent = sc->parent; | |
| 3867 } | |
| 3868 | |
| 3869 //printf("inserting '%s' %p into sc = %p\n", s->toChars(), s, sc); | |
| 3870 // Insert into both local scope and function scope. | |
| 3871 // Must be unique in both. | |
| 3872 if (s->ident) | |
| 3873 { | |
| 3874 if (!sc->insert(s)) | |
| 3875 error("declaration %s is already defined", s->toPrettyChars()); | |
| 3876 else if (sc->func) | |
| 3877 { VarDeclaration *v = s->isVarDeclaration(); | |
| 3878 if ((s->isFuncDeclaration() /*|| v && v->storage_class & STCstatic*/) && | |
| 3879 !sc->func->localsymtab->insert(s)) | |
| 3880 error("declaration %s is already defined in another scope in %s", s->toPrettyChars(), sc->func->toChars()); | |
| 3881 else if (!global.params.useDeprecated) | |
| 3882 { // Disallow shadowing | |
| 3883 | |
| 3884 for (Scope *scx = sc->enclosing; scx && scx->func == sc->func; scx = scx->enclosing) | |
| 3885 { Dsymbol *s2; | |
| 3886 | |
| 3887 if (scx->scopesym && scx->scopesym->symtab && | |
| 3888 (s2 = scx->scopesym->symtab->lookup(s->ident)) != NULL && | |
| 3889 s != s2) | |
| 3890 { | |
| 3891 error("shadowing declaration %s is deprecated", s->toPrettyChars()); | |
| 3892 } | |
| 3893 } | |
| 3894 } | |
| 3895 } | |
| 3896 } | |
| 3897 if (!s->isVarDeclaration()) | |
| 3898 { | |
| 3899 declaration->semantic(sc); | |
| 3900 s->parent = sc->parent; | |
| 3901 } | |
| 3902 if (!global.errors) | |
| 3903 { | |
| 3904 declaration->semantic2(sc); | |
| 3905 if (!global.errors) | |
| 3906 { | |
| 3907 declaration->semantic3(sc); | |
| 3908 | |
| 3909 if (!global.errors && global.params.useInline) | |
| 3910 declaration->inlineScan(); | |
| 3911 } | |
| 3912 } | |
| 3913 | |
| 3914 type = Type::tvoid; | |
| 3915 return this; | |
| 3916 } | |
| 3917 | |
| 3918 int DeclarationExp::checkSideEffect(int flag) | |
| 3919 { | |
| 3920 return 1; | |
| 3921 } | |
| 3922 | |
| 3923 void DeclarationExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3924 { | |
| 3925 declaration->toCBuffer(buf, hgs); | |
| 3926 } | |
| 3927 | |
| 3928 | |
| 3929 /************************ TypeidExp ************************************/ | |
| 3930 | |
| 3931 /* | |
| 3932 * typeid(int) | |
| 3933 */ | |
| 3934 | |
| 3935 TypeidExp::TypeidExp(Loc loc, Type *typeidType) | |
| 3936 : Expression(loc, TOKtypeid, sizeof(TypeidExp)) | |
| 3937 { | |
| 3938 this->typeidType = typeidType; | |
| 3939 } | |
| 3940 | |
| 3941 | |
| 3942 Expression *TypeidExp::syntaxCopy() | |
| 3943 { | |
| 3944 return new TypeidExp(loc, typeidType->syntaxCopy()); | |
| 3945 } | |
| 3946 | |
| 3947 | |
| 3948 Expression *TypeidExp::semantic(Scope *sc) | |
| 3949 { Expression *e; | |
| 3950 | |
| 3951 #if LOGSEMANTIC | |
| 3952 printf("TypeidExp::semantic()\n"); | |
| 3953 #endif | |
| 3954 typeidType = typeidType->semantic(loc, sc); | |
| 3955 e = typeidType->getTypeInfo(sc); | |
| 3956 return e; | |
| 3957 } | |
| 3958 | |
| 3959 void TypeidExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3960 { | |
| 3961 buf->writestring("typeid("); | |
| 3962 typeidType->toCBuffer(buf, NULL, hgs); | |
| 3963 buf->writeByte(')'); | |
| 3964 } | |
| 3965 | |
| 3966 /************************************************************/ | |
| 3967 | |
| 3968 HaltExp::HaltExp(Loc loc) | |
| 3969 : Expression(loc, TOKhalt, sizeof(HaltExp)) | |
| 3970 { | |
| 3971 } | |
| 3972 | |
| 3973 Expression *HaltExp::semantic(Scope *sc) | |
| 3974 { | |
| 3975 #if LOGSEMANTIC | |
| 3976 printf("HaltExp::semantic()\n"); | |
| 3977 #endif | |
| 3978 type = Type::tvoid; | |
| 3979 return this; | |
| 3980 } | |
| 3981 | |
| 3982 int HaltExp::checkSideEffect(int flag) | |
| 3983 { | |
| 3984 return 1; | |
| 3985 } | |
| 3986 | |
| 3987 void HaltExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3988 { | |
| 3989 buf->writestring("halt"); | |
| 3990 } | |
| 3991 | |
| 3992 /************************************************************/ | |
| 3993 | |
| 19 | 3994 IsExp::IsExp(Loc loc, Type *targ, Identifier *id, enum TOK tok, |
| 1 | 3995 Type *tspec, enum TOK tok2) |
| 19 | 3996 : Expression(loc, TOKis, sizeof(IsExp)) |
| 1 | 3997 { |
| 3998 this->targ = targ; | |
| 3999 this->id = id; | |
| 4000 this->tok = tok; | |
| 4001 this->tspec = tspec; | |
| 4002 this->tok2 = tok2; | |
| 4003 } | |
| 4004 | |
| 19 | 4005 Expression *IsExp::syntaxCopy() |
| 4006 { | |
| 4007 return new IsExp(loc, | |
| 1 | 4008 targ->syntaxCopy(), |
| 4009 id, | |
| 4010 tok, | |
| 4011 tspec ? tspec->syntaxCopy() : NULL, | |
| 4012 tok2); | |
| 4013 } | |
| 4014 | |
| 19 | 4015 Expression *IsExp::semantic(Scope *sc) |
| 1 | 4016 { Type *tded; |
| 4017 | |
| 19 | 4018 //printf("IsExp::semantic()\n"); |
| 1 | 4019 if (id && !(sc->flags & SCOPEstaticif)) |
| 4020 error("can only declare type aliases within static if conditionals"); | |
| 4021 | |
| 4022 unsigned errors_save = global.errors; | |
| 4023 global.errors = 0; | |
| 4024 global.gag++; // suppress printing of error messages | |
| 4025 targ = targ->semantic(loc, sc); | |
| 4026 global.gag--; | |
| 4027 unsigned gerrors = global.errors; | |
| 4028 global.errors = errors_save; | |
| 4029 | |
| 4030 if (gerrors) // if any errors happened | |
| 4031 { // then condition is false | |
| 4032 goto Lno; | |
| 4033 } | |
| 4034 else if (tok2 != TOKreserved) | |
| 4035 { | |
| 4036 switch (tok2) | |
| 4037 { | |
| 4038 case TOKtypedef: | |
| 4039 if (targ->ty != Ttypedef) | |
| 4040 goto Lno; | |
| 4041 tded = ((TypeTypedef *)targ)->sym->basetype; | |
| 4042 break; | |
| 4043 | |
| 4044 case TOKstruct: | |
| 4045 if (targ->ty != Tstruct) | |
| 4046 goto Lno; | |
| 4047 if (((TypeStruct *)targ)->sym->isUnionDeclaration()) | |
| 4048 goto Lno; | |
| 4049 tded = targ; | |
| 4050 break; | |
| 4051 | |
| 4052 case TOKunion: | |
| 4053 if (targ->ty != Tstruct) | |
| 4054 goto Lno; | |
| 4055 if (!((TypeStruct *)targ)->sym->isUnionDeclaration()) | |
| 4056 goto Lno; | |
| 4057 tded = targ; | |
| 4058 break; | |
| 4059 | |
| 4060 case TOKclass: | |
| 4061 if (targ->ty != Tclass) | |
| 4062 goto Lno; | |
| 4063 if (((TypeClass *)targ)->sym->isInterfaceDeclaration()) | |
| 4064 goto Lno; | |
| 4065 tded = targ; | |
| 4066 break; | |
| 4067 | |
| 4068 case TOKinterface: | |
| 4069 if (targ->ty != Tclass) | |
| 4070 goto Lno; | |
| 4071 if (!((TypeClass *)targ)->sym->isInterfaceDeclaration()) | |
| 4072 goto Lno; | |
| 4073 tded = targ; | |
| 4074 break; | |
| 4075 | |
| 4076 case TOKsuper: | |
| 4077 // If class or interface, get the base class and interfaces | |
| 4078 if (targ->ty != Tclass) | |
| 4079 goto Lno; | |
| 4080 else | |
| 4081 { ClassDeclaration *cd = ((TypeClass *)targ)->sym; | |
| 4082 Arguments *args = new Arguments; | |
| 4083 args->reserve(cd->baseclasses.dim); | |
| 4084 for (size_t i = 0; i < cd->baseclasses.dim; i++) | |
| 4085 { BaseClass *b = (BaseClass *)cd->baseclasses.data[i]; | |
| 4086 args->push(new Argument(STCin, b->type, NULL, NULL)); | |
| 4087 } | |
| 4088 tded = new TypeTuple(args); | |
| 4089 } | |
| 4090 break; | |
| 4091 | |
| 4092 case TOKenum: | |
| 4093 if (targ->ty != Tenum) | |
| 4094 goto Lno; | |
| 4095 tded = ((TypeEnum *)targ)->sym->memtype; | |
| 4096 break; | |
| 4097 | |
| 4098 case TOKdelegate: | |
| 4099 if (targ->ty != Tdelegate) | |
| 4100 goto Lno; | |
| 4101 tded = targ->next; // the underlying function type | |
| 4102 break; | |
| 4103 | |
| 4104 case TOKfunction: | |
| 4105 { if (targ->ty != Tfunction) | |
| 4106 goto Lno; | |
| 4107 tded = targ; | |
| 4108 | |
| 4109 /* Generate tuple from function parameter types. | |
| 4110 */ | |
| 4111 assert(tded->ty == Tfunction); | |
| 4112 Arguments *params = ((TypeFunction *)tded)->parameters; | |
| 4113 size_t dim = Argument::dim(params); | |
| 4114 Arguments *args = new Arguments; | |
| 4115 args->reserve(dim); | |
| 4116 for (size_t i = 0; i < dim; i++) | |
| 4117 { Argument *arg = Argument::getNth(params, i); | |
| 4118 assert(arg && arg->type); | |
| 4119 args->push(new Argument(arg->storageClass, arg->type, NULL, NULL)); | |
| 4120 } | |
| 4121 tded = new TypeTuple(args); | |
| 4122 break; | |
| 4123 } | |
| 4124 case TOKreturn: | |
| 4125 /* Get the 'return type' for the function, | |
| 4126 * delegate, or pointer to function. | |
| 4127 */ | |
| 4128 if (targ->ty == Tfunction) | |
| 4129 tded = targ->next; | |
| 4130 else if (targ->ty == Tdelegate) | |
| 4131 tded = targ->next->next; | |
| 4132 else if (targ->ty == Tpointer && targ->next->ty == Tfunction) | |
| 4133 tded = targ->next->next; | |
| 4134 else | |
| 4135 goto Lno; | |
| 4136 break; | |
| 4137 | |
| 4138 default: | |
| 4139 assert(0); | |
| 4140 } | |
| 4141 goto Lyes; | |
| 4142 } | |
| 4143 else if (id && tspec) | |
| 4144 { | |
| 4145 /* Evaluate to TRUE if targ matches tspec. | |
| 4146 * If TRUE, declare id as an alias for the specialized type. | |
| 4147 */ | |
| 4148 | |
| 4149 MATCH m; | |
| 4150 TemplateTypeParameter tp(loc, id, NULL, NULL); | |
| 4151 | |
| 4152 TemplateParameters parameters; | |
| 4153 parameters.setDim(1); | |
| 4154 parameters.data[0] = (void *)&tp; | |
| 4155 | |
| 4156 Objects dedtypes; | |
| 4157 dedtypes.setDim(1); | |
| 4158 dedtypes.data[0] = NULL; | |
| 4159 | |
| 4160 m = targ->deduceType(NULL, tspec, ¶meters, &dedtypes); | |
| 4161 if (m == MATCHnomatch || | |
| 4162 (m != MATCHexact && tok == TOKequal)) | |
| 4163 goto Lno; | |
| 4164 else | |
| 4165 { | |
| 4166 assert(dedtypes.dim == 1); | |
| 4167 tded = (Type *)dedtypes.data[0]; | |
| 4168 if (!tded) | |
| 4169 tded = targ; | |
| 4170 goto Lyes; | |
| 4171 } | |
| 4172 } | |
| 4173 else if (id) | |
| 4174 { | |
| 4175 /* Declare id as an alias for type targ. Evaluate to TRUE | |
| 4176 */ | |
| 4177 tded = targ; | |
| 4178 goto Lyes; | |
| 4179 } | |
| 4180 else if (tspec) | |
| 4181 { | |
| 4182 /* Evaluate to TRUE if targ matches tspec | |
| 4183 */ | |
| 4184 tspec = tspec->semantic(loc, sc); | |
| 4185 //printf("targ = %s\n", targ->toChars()); | |
| 4186 //printf("tspec = %s\n", tspec->toChars()); | |
| 4187 if (tok == TOKcolon) | |
| 4188 { if (targ->implicitConvTo(tspec)) | |
| 4189 goto Lyes; | |
| 4190 else | |
| 4191 goto Lno; | |
| 4192 } | |
| 4193 else /* == */ | |
| 4194 { if (targ->equals(tspec)) | |
| 4195 goto Lyes; | |
| 4196 else | |
| 4197 goto Lno; | |
| 4198 } | |
| 4199 } | |
| 4200 | |
| 4201 Lyes: | |
| 4202 if (id) | |
| 4203 { | |
| 4204 Dsymbol *s = new AliasDeclaration(loc, id, tded); | |
| 4205 s->semantic(sc); | |
| 4206 sc->insert(s); | |
| 4207 if (sc->sd) | |
| 4208 s->addMember(sc, sc->sd, 1); | |
| 4209 } | |
| 4210 return new IntegerExp(1); | |
| 4211 | |
| 4212 Lno: | |
| 4213 return new IntegerExp(0); | |
| 4214 } | |
| 4215 | |
| 19 | 4216 void IsExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 1 | 4217 { |
| 4218 buf->writestring("is("); | |
| 4219 targ->toCBuffer(buf, id, hgs); | |
| 19 | 4220 if (tok2 != TOKreserved) |
| 4221 { | |
| 4222 buf->printf(" %s %s", Token::toChars(tok), Token::toChars(tok2)); | |
| 4223 } | |
| 4224 else if (tspec) | |
| 1 | 4225 { |
| 4226 if (tok == TOKcolon) | |
| 4227 buf->writestring(" : "); | |
| 4228 else | |
| 4229 buf->writestring(" == "); | |
| 4230 tspec->toCBuffer(buf, NULL, hgs); | |
| 4231 } | |
| 19 | 4232 #if V2 |
| 4233 if (parameters) | |
| 4234 { // First parameter is already output, so start with second | |
| 4235 for (int i = 1; i < parameters->dim; i++) | |
| 4236 { | |
| 4237 buf->writeByte(','); | |
| 4238 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 4239 tp->toCBuffer(buf, hgs); | |
| 4240 } | |
| 4241 } | |
| 4242 #endif | |
| 1 | 4243 buf->writeByte(')'); |
| 4244 } | |
| 4245 | |
| 4246 | |
| 4247 /************************************************************/ | |
| 4248 | |
| 4249 UnaExp::UnaExp(Loc loc, enum TOK op, int size, Expression *e1) | |
| 4250 : Expression(loc, op, size) | |
| 4251 { | |
| 4252 this->e1 = e1; | |
| 4253 } | |
| 4254 | |
| 4255 Expression *UnaExp::syntaxCopy() | |
| 4256 { UnaExp *e; | |
| 4257 | |
| 4258 e = (UnaExp *)copy(); | |
| 4259 e->type = NULL; | |
| 4260 e->e1 = e->e1->syntaxCopy(); | |
| 4261 return e; | |
| 4262 } | |
| 4263 | |
| 4264 Expression *UnaExp::semantic(Scope *sc) | |
| 4265 { | |
| 4266 #if LOGSEMANTIC | |
| 4267 printf("UnaExp::semantic('%s')\n", toChars()); | |
| 4268 #endif | |
| 4269 e1 = e1->semantic(sc); | |
| 4270 // if (!e1->type) | |
| 4271 // error("%s has no value", e1->toChars()); | |
| 4272 return this; | |
| 4273 } | |
| 4274 | |
| 4275 void UnaExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4276 { | |
| 4277 buf->writestring(Token::toChars(op)); | |
| 4278 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 4279 } | |
| 4280 | |
| 4281 /************************************************************/ | |
| 4282 | |
| 4283 BinExp::BinExp(Loc loc, enum TOK op, int size, Expression *e1, Expression *e2) | |
| 4284 : Expression(loc, op, size) | |
| 4285 { | |
| 4286 this->e1 = e1; | |
| 4287 this->e2 = e2; | |
| 4288 } | |
| 4289 | |
| 4290 Expression *BinExp::syntaxCopy() | |
| 4291 { BinExp *e; | |
| 4292 | |
| 4293 e = (BinExp *)copy(); | |
| 4294 e->type = NULL; | |
| 4295 e->e1 = e->e1->syntaxCopy(); | |
| 4296 e->e2 = e->e2->syntaxCopy(); | |
| 4297 return e; | |
| 4298 } | |
| 4299 | |
| 4300 Expression *BinExp::semantic(Scope *sc) | |
| 4301 { | |
| 4302 #if LOGSEMANTIC | |
| 4303 printf("BinExp::semantic('%s')\n", toChars()); | |
| 4304 #endif | |
| 4305 e1 = e1->semantic(sc); | |
| 4306 if (!e1->type) | |
| 4307 { | |
| 4308 error("%s has no value", e1->toChars()); | |
| 4309 e1->type = Type::terror; | |
| 4310 } | |
| 4311 e2 = e2->semantic(sc); | |
| 4312 if (!e2->type) | |
| 4313 { | |
| 4314 error("%s has no value", e2->toChars()); | |
| 4315 e2->type = Type::terror; | |
| 4316 } | |
| 4317 assert(e1->type); | |
| 4318 return this; | |
| 4319 } | |
| 4320 | |
| 4321 Expression *BinExp::semanticp(Scope *sc) | |
| 4322 { | |
| 4323 BinExp::semantic(sc); | |
| 4324 e1 = resolveProperties(sc, e1); | |
| 4325 e2 = resolveProperties(sc, e2); | |
| 4326 return this; | |
| 4327 } | |
| 4328 | |
| 4329 /*************************** | |
| 4330 * Common semantic routine for some xxxAssignExp's. | |
| 4331 */ | |
| 4332 | |
| 4333 Expression *BinExp::commonSemanticAssign(Scope *sc) | |
| 4334 { Expression *e; | |
| 4335 | |
| 4336 if (!type) | |
| 4337 { | |
| 4338 BinExp::semantic(sc); | |
| 4339 e2 = resolveProperties(sc, e2); | |
| 4340 | |
| 4341 e = op_overload(sc); | |
| 4342 if (e) | |
| 4343 return e; | |
| 4344 | |
| 4345 e1 = e1->modifiableLvalue(sc, NULL); | |
| 4346 e1->checkScalar(); | |
| 4347 type = e1->type; | |
| 4348 if (type->toBasetype()->ty == Tbool) | |
| 4349 { | |
| 4350 error("operator not allowed on bool expression %s", toChars()); | |
| 4351 } | |
| 4352 typeCombine(sc); | |
| 4353 e1->checkArithmetic(); | |
| 4354 e2->checkArithmetic(); | |
| 4355 | |
| 4356 if (op == TOKmodass && e2->type->iscomplex()) | |
| 4357 { error("cannot perform modulo complex arithmetic"); | |
| 4358 return new IntegerExp(0); | |
| 4359 } | |
| 4360 } | |
| 4361 return this; | |
| 4362 } | |
| 4363 | |
| 4364 Expression *BinExp::commonSemanticAssignIntegral(Scope *sc) | |
| 4365 { Expression *e; | |
| 4366 | |
| 4367 if (!type) | |
| 4368 { | |
| 4369 BinExp::semantic(sc); | |
| 4370 e2 = resolveProperties(sc, e2); | |
| 4371 | |
| 4372 e = op_overload(sc); | |
| 4373 if (e) | |
| 4374 return e; | |
| 4375 | |
| 4376 e1 = e1->modifiableLvalue(sc, NULL); | |
| 4377 e1->checkScalar(); | |
| 4378 type = e1->type; | |
| 4379 if (type->toBasetype()->ty == Tbool) | |
| 4380 { | |
| 4381 e2 = e2->implicitCastTo(sc, type); | |
| 4382 } | |
| 4383 | |
| 4384 typeCombine(sc); | |
| 4385 e1->checkIntegral(); | |
| 4386 e2->checkIntegral(); | |
| 4387 } | |
| 4388 return this; | |
| 4389 } | |
| 4390 | |
| 4391 int BinExp::checkSideEffect(int flag) | |
| 4392 { | |
| 4393 if (op == TOKplusplus || | |
| 4394 op == TOKminusminus || | |
| 4395 op == TOKassign || | |
| 4396 op == TOKaddass || | |
| 4397 op == TOKminass || | |
| 4398 op == TOKcatass || | |
| 4399 op == TOKmulass || | |
| 4400 op == TOKdivass || | |
| 4401 op == TOKmodass || | |
| 4402 op == TOKshlass || | |
| 4403 op == TOKshrass || | |
| 4404 op == TOKushrass || | |
| 4405 op == TOKandass || | |
| 4406 op == TOKorass || | |
| 4407 op == TOKxorass || | |
| 4408 op == TOKin || | |
| 4409 op == TOKremove) | |
| 4410 return 1; | |
| 4411 return Expression::checkSideEffect(flag); | |
| 4412 } | |
| 4413 | |
| 4414 void BinExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4415 { | |
| 4416 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 4417 buf->writeByte(' '); | |
| 4418 buf->writestring(Token::toChars(op)); | |
| 4419 buf->writeByte(' '); | |
| 4420 expToCBuffer(buf, hgs, e2, (enum PREC)(precedence[op] + 1)); | |
| 4421 } | |
| 4422 | |
| 4423 int BinExp::isunsigned() | |
| 4424 { | |
| 4425 return e1->type->isunsigned() || e2->type->isunsigned(); | |
| 4426 } | |
| 4427 | |
| 4428 void BinExp::incompatibleTypes() | |
| 4429 { | |
| 4430 error("incompatible types for ((%s) %s (%s)): '%s' and '%s'", | |
| 4431 e1->toChars(), Token::toChars(op), e2->toChars(), | |
| 4432 e1->type->toChars(), e2->type->toChars()); | |
| 4433 } | |
| 4434 | |
| 4435 /************************************************************/ | |
| 4436 | |
| 4437 CompileExp::CompileExp(Loc loc, Expression *e) | |
| 4438 : UnaExp(loc, TOKmixin, sizeof(CompileExp), e) | |
| 4439 { | |
| 4440 } | |
| 4441 | |
| 4442 Expression *CompileExp::semantic(Scope *sc) | |
| 4443 { | |
| 4444 #if LOGSEMANTIC | |
| 4445 printf("CompileExp::semantic('%s')\n", toChars()); | |
| 4446 #endif | |
| 4447 UnaExp::semantic(sc); | |
| 4448 e1 = resolveProperties(sc, e1); | |
| 4449 e1 = e1->optimize(WANTvalue | WANTinterpret); | |
| 4450 if (e1->op != TOKstring) | |
| 4451 { error("argument to mixin must be a string, not (%s)", e1->toChars()); | |
| 4452 type = Type::terror; | |
| 4453 return this; | |
| 4454 } | |
| 4455 StringExp *se = (StringExp *)e1; | |
| 4456 se = se->toUTF8(sc); | |
| 4457 Parser p(sc->module, (unsigned char *)se->string, se->len, 0); | |
| 4458 p.loc = loc; | |
| 4459 p.nextToken(); | |
| 4460 Expression *e = p.parseExpression(); | |
| 4461 if (p.token.value != TOKeof) | |
| 4462 error("incomplete mixin expression (%s)", se->toChars()); | |
| 4463 return e->semantic(sc); | |
| 4464 } | |
| 4465 | |
| 4466 void CompileExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4467 { | |
| 4468 buf->writestring("mixin("); | |
| 4469 expToCBuffer(buf, hgs, e1, PREC_assign); | |
| 4470 buf->writeByte(')'); | |
| 4471 } | |
| 4472 | |
| 4473 /************************************************************/ | |
| 4474 | |
| 4475 FileExp::FileExp(Loc loc, Expression *e) | |
| 4476 : UnaExp(loc, TOKmixin, sizeof(FileExp), e) | |
| 4477 { | |
| 4478 } | |
| 4479 | |
| 4480 Expression *FileExp::semantic(Scope *sc) | |
| 4481 { char *name; | |
| 4482 StringExp *se; | |
| 4483 | |
| 4484 #if LOGSEMANTIC | |
| 4485 printf("FileExp::semantic('%s')\n", toChars()); | |
| 4486 #endif | |
| 4487 UnaExp::semantic(sc); | |
| 4488 e1 = resolveProperties(sc, e1); | |
| 4489 e1 = e1->optimize(WANTvalue); | |
| 4490 if (e1->op != TOKstring) | |
| 4491 { error("file name argument must be a string, not (%s)", e1->toChars()); | |
| 4492 goto Lerror; | |
| 4493 } | |
| 4494 se = (StringExp *)e1; | |
| 4495 se = se->toUTF8(sc); | |
| 4496 name = (char *)se->string; | |
| 4497 | |
| 4498 if (!global.params.fileImppath) | |
| 4499 { error("need -Jpath switch to import text file %s", name); | |
| 4500 goto Lerror; | |
| 4501 } | |
| 4502 | |
| 4503 if (name != FileName::name(name)) | |
| 4504 { error("use -Jpath switch to provide path for filename %s", name); | |
| 4505 goto Lerror; | |
| 4506 } | |
| 4507 | |
| 4508 name = FileName::searchPath(global.filePath, name, 0); | |
| 4509 if (!name) | |
| 4510 { error("file %s cannot be found, check -Jpath", se->toChars()); | |
| 4511 goto Lerror; | |
| 4512 } | |
| 4513 | |
| 4514 if (global.params.verbose) | |
| 4515 printf("file %s\t(%s)\n", se->string, name); | |
| 4516 | |
| 4517 { File f(name); | |
| 4518 if (f.read()) | |
| 4519 { error("cannot read file %s", f.toChars()); | |
| 4520 goto Lerror; | |
| 4521 } | |
| 4522 else | |
| 4523 { | |
| 4524 f.ref = 1; | |
| 4525 se = new StringExp(loc, f.buffer, f.len); | |
| 4526 } | |
| 4527 } | |
| 4528 Lret: | |
| 4529 return se->semantic(sc); | |
| 4530 | |
| 4531 Lerror: | |
| 4532 se = new StringExp(loc, ""); | |
| 4533 goto Lret; | |
| 4534 } | |
| 4535 | |
| 4536 void FileExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4537 { | |
| 4538 buf->writestring("import("); | |
| 4539 expToCBuffer(buf, hgs, e1, PREC_assign); | |
| 4540 buf->writeByte(')'); | |
| 4541 } | |
| 4542 | |
| 4543 /************************************************************/ | |
| 4544 | |
| 4545 AssertExp::AssertExp(Loc loc, Expression *e, Expression *msg) | |
| 4546 : UnaExp(loc, TOKassert, sizeof(AssertExp), e) | |
| 4547 { | |
| 4548 this->msg = msg; | |
| 4549 } | |
| 4550 | |
| 4551 Expression *AssertExp::syntaxCopy() | |
| 4552 { | |
| 4553 AssertExp *ae = new AssertExp(loc, e1->syntaxCopy(), | |
| 4554 msg ? msg->syntaxCopy() : NULL); | |
| 4555 return ae; | |
| 4556 } | |
| 4557 | |
| 4558 Expression *AssertExp::semantic(Scope *sc) | |
| 4559 { | |
| 4560 #if LOGSEMANTIC | |
| 4561 printf("AssertExp::semantic('%s')\n", toChars()); | |
| 4562 #endif | |
| 4563 UnaExp::semantic(sc); | |
| 4564 e1 = resolveProperties(sc, e1); | |
| 4565 // BUG: see if we can do compile time elimination of the Assert | |
| 4566 e1 = e1->optimize(WANTvalue); | |
| 4567 e1 = e1->checkToBoolean(); | |
| 4568 if (msg) | |
| 4569 { | |
| 4570 msg = msg->semantic(sc); | |
| 4571 msg = resolveProperties(sc, msg); | |
| 4572 msg = msg->implicitCastTo(sc, Type::tchar->arrayOf()); | |
| 4573 msg = msg->optimize(WANTvalue); | |
| 4574 } | |
| 4575 if (e1->isBool(FALSE)) | |
| 4576 { | |
| 4577 FuncDeclaration *fd = sc->parent->isFuncDeclaration(); | |
| 4578 fd->hasReturnExp |= 4; | |
| 4579 | |
| 4580 if (!global.params.useAssert) | |
| 4581 { Expression *e = new HaltExp(loc); | |
| 4582 e = e->semantic(sc); | |
| 4583 return e; | |
| 4584 } | |
| 4585 } | |
| 4586 type = Type::tvoid; | |
| 4587 return this; | |
| 4588 } | |
| 4589 | |
| 4590 int AssertExp::checkSideEffect(int flag) | |
| 4591 { | |
| 4592 return 1; | |
| 4593 } | |
| 4594 | |
| 4595 void AssertExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4596 { | |
| 4597 buf->writestring("assert("); | |
| 4598 expToCBuffer(buf, hgs, e1, PREC_assign); | |
| 4599 if (msg) | |
| 4600 { | |
| 4601 buf->writeByte(','); | |
| 4602 expToCBuffer(buf, hgs, msg, PREC_assign); | |
| 4603 } | |
| 4604 buf->writeByte(')'); | |
| 4605 } | |
| 4606 | |
| 4607 /************************************************************/ | |
| 4608 | |
| 4609 DotIdExp::DotIdExp(Loc loc, Expression *e, Identifier *ident) | |
| 4610 : UnaExp(loc, TOKdot, sizeof(DotIdExp), e) | |
| 4611 { | |
| 4612 this->ident = ident; | |
| 4613 } | |
| 4614 | |
| 4615 Expression *DotIdExp::semantic(Scope *sc) | |
| 4616 { Expression *e; | |
| 4617 Expression *eleft; | |
| 4618 Expression *eright; | |
| 4619 | |
| 4620 #if LOGSEMANTIC | |
| 4621 printf("DotIdExp::semantic(this = %p, '%s')\n", this, toChars()); | |
| 4622 //printf("e1->op = %d, '%s'\n", e1->op, Token::toChars(e1->op)); | |
| 4623 #endif | |
| 4624 | |
| 4625 //{ static int z; fflush(stdout); if (++z == 10) *(char*)0=0; } | |
| 4626 | |
| 4627 #if 0 | |
| 4628 /* Don't do semantic analysis if we'll be converting | |
| 4629 * it to a string. | |
| 4630 */ | |
| 4631 if (ident == Id::stringof) | |
| 4632 { char *s = e1->toChars(); | |
| 4633 e = new StringExp(loc, s, strlen(s), 'c'); | |
| 4634 e = e->semantic(sc); | |
| 4635 return e; | |
| 4636 } | |
| 4637 #endif | |
| 4638 | |
| 4639 /* Special case: rewrite this.id and super.id | |
| 4640 * to be classtype.id and baseclasstype.id | |
| 4641 * if we have no this pointer. | |
| 4642 */ | |
| 4643 if ((e1->op == TOKthis || e1->op == TOKsuper) && !hasThis(sc)) | |
| 4644 { ClassDeclaration *cd; | |
| 4645 StructDeclaration *sd; | |
| 4646 AggregateDeclaration *ad; | |
| 4647 | |
| 4648 ad = sc->getStructClassScope(); | |
| 4649 if (ad) | |
| 4650 { | |
| 4651 cd = ad->isClassDeclaration(); | |
| 4652 if (cd) | |
| 4653 { | |
| 4654 if (e1->op == TOKthis) | |
| 4655 { | |
| 4656 e = new TypeDotIdExp(loc, cd->type, ident); | |
| 4657 return e->semantic(sc); | |
| 4658 } | |
| 4659 else if (cd->baseClass && e1->op == TOKsuper) | |
| 4660 { | |
| 4661 e = new TypeDotIdExp(loc, cd->baseClass->type, ident); | |
| 4662 return e->semantic(sc); | |
| 4663 } | |
| 4664 } | |
| 4665 else | |
| 4666 { | |
| 4667 sd = ad->isStructDeclaration(); | |
| 4668 if (sd) | |
| 4669 { | |
| 4670 if (e1->op == TOKthis) | |
| 4671 { | |
| 4672 e = new TypeDotIdExp(loc, sd->type, ident); | |
| 4673 return e->semantic(sc); | |
| 4674 } | |
| 4675 } | |
| 4676 } | |
| 4677 } | |
| 4678 } | |
| 4679 | |
| 4680 UnaExp::semantic(sc); | |
| 4681 | |
| 4682 if (e1->op == TOKdotexp) | |
| 4683 { | |
| 4684 DotExp *de = (DotExp *)e1; | |
| 4685 eleft = de->e1; | |
| 4686 eright = de->e2; | |
| 4687 } | |
| 4688 else | |
| 4689 { | |
| 4690 e1 = resolveProperties(sc, e1); | |
| 4691 eleft = NULL; | |
| 4692 eright = e1; | |
| 4693 } | |
| 4694 | |
| 4695 if (e1->op == TOKtuple && ident == Id::length) | |
| 4696 { | |
| 4697 TupleExp *te = (TupleExp *)e1; | |
| 4698 e = new IntegerExp(loc, te->exps->dim, Type::tsize_t); | |
| 4699 return e; | |
| 4700 } | |
| 4701 | |
| 4702 if (eright->op == TOKimport) // also used for template alias's | |
| 4703 { | |
| 4704 Dsymbol *s; | |
| 4705 ScopeExp *ie = (ScopeExp *)eright; | |
| 4706 | |
| 4707 s = ie->sds->search(loc, ident, 0); | |
| 4708 if (s) | |
| 4709 { | |
| 4710 s = s->toAlias(); | |
| 4711 checkDeprecated(sc, s); | |
| 4712 | |
| 4713 EnumMember *em = s->isEnumMember(); | |
| 4714 if (em) | |
| 4715 { | |
| 4716 e = em->value; | |
| 4717 e = e->semantic(sc); | |
| 4718 return e; | |
| 4719 } | |
| 4720 | |
| 4721 VarDeclaration *v = s->isVarDeclaration(); | |
| 4722 if (v) | |
| 4723 { | |
| 4724 //printf("DotIdExp:: Identifier '%s' is a variable, type '%s'\n", toChars(), v->type->toChars()); | |
| 4725 if (v->inuse) | |
| 4726 { | |
| 4727 error("circular reference to '%s'", v->toChars()); | |
| 4728 type = Type::tint32; | |
| 4729 return this; | |
| 4730 } | |
| 4731 type = v->type; | |
| 4732 if (v->isConst()) | |
| 4733 { | |
| 4734 if (v->init) | |
| 4735 { | |
| 4736 ExpInitializer *ei = v->init->isExpInitializer(); | |
| 4737 if (ei) | |
| 4738 { | |
| 4739 //printf("\tei: %p (%s)\n", ei->exp, ei->exp->toChars()); | |
| 4740 //ei->exp = ei->exp->semantic(sc); | |
| 4741 if (ei->exp->type == type) | |
| 4742 { | |
| 4743 e = ei->exp->copy(); // make copy so we can change loc | |
| 4744 e->loc = loc; | |
| 4745 return e; | |
| 4746 } | |
| 4747 } | |
| 4748 } | |
| 4749 else if (type->isscalar()) | |
| 4750 { | |
| 4751 e = type->defaultInit(); | |
| 4752 e->loc = loc; | |
| 4753 return e; | |
| 4754 } | |
| 4755 } | |
| 4756 if (v->needThis()) | |
| 4757 { | |
| 4758 if (!eleft) | |
| 4759 eleft = new ThisExp(loc); | |
| 4760 e = new DotVarExp(loc, eleft, v); | |
| 4761 e = e->semantic(sc); | |
| 4762 } | |
| 4763 else | |
| 4764 { | |
| 4765 e = new VarExp(loc, v); | |
| 4766 if (eleft) | |
| 4767 { e = new CommaExp(loc, eleft, e); | |
| 4768 e->type = v->type; | |
| 4769 } | |
| 4770 } | |
| 4771 return e->deref(); | |
| 4772 } | |
| 4773 | |
| 4774 FuncDeclaration *f = s->isFuncDeclaration(); | |
| 4775 if (f) | |
| 4776 { | |
| 4777 //printf("it's a function\n"); | |
| 4778 if (f->needThis()) | |
| 4779 { | |
| 4780 if (!eleft) | |
| 4781 eleft = new ThisExp(loc); | |
| 4782 e = new DotVarExp(loc, eleft, f); | |
| 4783 e = e->semantic(sc); | |
| 4784 } | |
| 4785 else | |
| 4786 { | |
| 4787 e = new VarExp(loc, f); | |
| 4788 if (eleft) | |
| 4789 { e = new CommaExp(loc, eleft, e); | |
| 4790 e->type = f->type; | |
| 4791 } | |
| 4792 } | |
| 4793 return e; | |
| 4794 } | |
| 4795 | |
| 4796 Type *t = s->getType(); | |
| 4797 if (t) | |
| 4798 { | |
| 4799 return new TypeExp(loc, t); | |
| 4800 } | |
| 4801 | |
| 4802 ScopeDsymbol *sds = s->isScopeDsymbol(); | |
| 4803 if (sds) | |
| 4804 { | |
| 4805 //printf("it's a ScopeDsymbol\n"); | |
| 4806 e = new ScopeExp(loc, sds); | |
| 4807 e = e->semantic(sc); | |
| 4808 if (eleft) | |
| 4809 e = new DotExp(loc, eleft, e); | |
| 4810 return e; | |
| 4811 } | |
| 4812 | |
| 4813 Import *imp = s->isImport(); | |
| 4814 if (imp) | |
| 4815 { | |
| 4816 ScopeExp *ie; | |
| 4817 | |
| 4818 ie = new ScopeExp(loc, imp->pkg); | |
| 4819 return ie->semantic(sc); | |
| 4820 } | |
| 4821 | |
| 4822 // BUG: handle other cases like in IdentifierExp::semantic() | |
| 4823 #ifdef DEBUG | |
| 4824 printf("s = '%s', kind = '%s'\n", s->toChars(), s->kind()); | |
| 4825 #endif | |
| 4826 assert(0); | |
| 4827 } | |
| 4828 else if (ident == Id::stringof) | |
| 4829 { char *s = ie->toChars(); | |
| 4830 e = new StringExp(loc, s, strlen(s), 'c'); | |
| 4831 e = e->semantic(sc); | |
| 4832 return e; | |
| 4833 } | |
| 4834 error("undefined identifier %s", toChars()); | |
| 4835 type = Type::tvoid; | |
| 4836 return this; | |
| 4837 } | |
| 4838 else if (e1->type->ty == Tpointer && | |
| 4839 ident != Id::init && ident != Id::__sizeof && | |
| 4840 ident != Id::alignof && ident != Id::offsetof && | |
| 4841 ident != Id::mangleof && ident != Id::stringof) | |
| 4842 { | |
| 4843 e = new PtrExp(loc, e1); | |
| 4844 e->type = e1->type->next; | |
| 4845 return e->type->dotExp(sc, e, ident); | |
| 4846 } | |
| 4847 else | |
| 4848 { | |
| 4849 e = e1->type->dotExp(sc, e1, ident); | |
| 4850 e = e->semantic(sc); | |
| 4851 return e; | |
| 4852 } | |
| 4853 } | |
| 4854 | |
| 4855 void DotIdExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4856 { | |
| 4857 //printf("DotIdExp::toCBuffer()\n"); | |
| 4858 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 4859 buf->writeByte('.'); | |
| 4860 buf->writestring(ident->toChars()); | |
| 4861 } | |
| 4862 | |
| 4863 /********************** DotTemplateExp ***********************************/ | |
| 4864 | |
| 4865 // Mainly just a placeholder | |
| 4866 | |
| 4867 DotTemplateExp::DotTemplateExp(Loc loc, Expression *e, TemplateDeclaration *td) | |
| 4868 : UnaExp(loc, TOKdottd, sizeof(DotTemplateExp), e) | |
| 4869 | |
| 4870 { | |
| 4871 this->td = td; | |
| 4872 } | |
| 4873 | |
| 4874 void DotTemplateExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4875 { | |
| 4876 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 4877 buf->writeByte('.'); | |
| 4878 buf->writestring(td->toChars()); | |
| 4879 } | |
| 4880 | |
| 4881 | |
| 4882 /************************************************************/ | |
| 4883 | |
| 4884 DotVarExp::DotVarExp(Loc loc, Expression *e, Declaration *v) | |
| 4885 : UnaExp(loc, TOKdotvar, sizeof(DotVarExp), e) | |
| 4886 { | |
| 4887 //printf("DotVarExp()\n"); | |
| 4888 this->var = v; | |
| 4889 } | |
| 4890 | |
| 4891 Expression *DotVarExp::semantic(Scope *sc) | |
| 4892 { | |
| 4893 #if LOGSEMANTIC | |
| 4894 printf("DotVarExp::semantic('%s')\n", toChars()); | |
| 4895 #endif | |
| 4896 if (!type) | |
| 4897 { | |
| 4898 var = var->toAlias()->isDeclaration(); | |
| 4899 | |
| 4900 TupleDeclaration *tup = var->isTupleDeclaration(); | |
| 4901 if (tup) | |
| 4902 { /* Replace: | |
| 4903 * e1.tuple(a, b, c) | |
| 4904 * with: | |
| 4905 * tuple(e1.a, e1.b, e1.c) | |
| 4906 */ | |
| 4907 Expressions *exps = new Expressions; | |
| 4908 | |
| 4909 exps->reserve(tup->objects->dim); | |
| 4910 for (size_t i = 0; i < tup->objects->dim; i++) | |
| 4911 { Object *o = (Object *)tup->objects->data[i]; | |
| 4912 if (o->dyncast() != DYNCAST_EXPRESSION) | |
| 4913 { | |
| 4914 error("%s is not an expression", o->toChars()); | |
| 4915 } | |
| 4916 else | |
| 4917 { | |
| 4918 Expression *e = (Expression *)o; | |
| 4919 if (e->op != TOKdsymbol) | |
| 4920 error("%s is not a member", e->toChars()); | |
| 4921 else | |
| 4922 { DsymbolExp *ve = (DsymbolExp *)e; | |
| 4923 | |
| 4924 e = new DotVarExp(loc, e1, ve->s->isDeclaration()); | |
| 4925 exps->push(e); | |
| 4926 } | |
| 4927 } | |
| 4928 } | |
| 4929 Expression *e = new TupleExp(loc, exps); | |
| 4930 e = e->semantic(sc); | |
| 4931 return e; | |
| 4932 } | |
| 4933 | |
| 4934 e1 = e1->semantic(sc); | |
| 4935 type = var->type; | |
| 4936 if (!type && global.errors) | |
| 4937 { // var is goofed up, just return 0 | |
| 4938 return new IntegerExp(0); | |
| 4939 } | |
| 4940 assert(type); | |
| 4941 | |
| 4942 if (!var->isFuncDeclaration()) // for functions, do checks after overload resolution | |
| 4943 { | |
| 4944 AggregateDeclaration *ad = var->toParent()->isAggregateDeclaration(); | |
| 4945 L1: | |
|
35
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
4946 Type *t = e1->type->toBasetype(); |
| 1 | 4947 |
| 4948 if (ad && | |
| 4949 !(t->ty == Tpointer && t->next->ty == Tstruct && | |
| 4950 ((TypeStruct *)t->next)->sym == ad) | |
| 4951 && | |
| 4952 !(t->ty == Tstruct && | |
| 4953 ((TypeStruct *)t)->sym == ad) | |
| 4954 ) | |
| 4955 { | |
| 4956 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 4957 ClassDeclaration *tcd = t->isClassHandle(); | |
| 4958 | |
| 4959 if (!cd || !tcd || | |
| 4960 !(tcd == cd || cd->isBaseOf(tcd, NULL)) | |
| 4961 ) | |
| 4962 { | |
| 4963 if (tcd && tcd->isNested()) | |
| 4964 { // Try again with outer scope | |
| 4965 | |
| 4966 e1 = new DotVarExp(loc, e1, tcd->vthis); | |
| 4967 e1 = e1->semantic(sc); | |
| 4968 | |
| 4969 // Skip over nested functions, and get the enclosing | |
| 4970 // class type. | |
| 4971 Dsymbol *s = tcd->toParent(); | |
| 4972 while (s && s->isFuncDeclaration()) | |
| 4973 { FuncDeclaration *f = s->isFuncDeclaration(); | |
| 4974 if (f->vthis) | |
| 4975 { | |
| 4976 e1 = new VarExp(loc, f->vthis); | |
| 4977 } | |
| 4978 s = s->toParent(); | |
| 4979 } | |
| 4980 if (s && s->isClassDeclaration()) | |
| 4981 e1->type = s->isClassDeclaration()->type; | |
| 4982 | |
| 4983 goto L1; | |
| 4984 } | |
| 4985 #ifdef DEBUG | |
| 4986 printf("2: "); | |
| 4987 #endif | |
| 4988 error("this for %s needs to be type %s not type %s", | |
| 4989 var->toChars(), ad->toChars(), t->toChars()); | |
| 4990 } | |
| 4991 } | |
| 4992 accessCheck(loc, sc, e1, var); | |
| 4993 } | |
| 4994 } | |
| 4995 //printf("-DotVarExp::semantic('%s')\n", toChars()); | |
| 4996 return this; | |
| 4997 } | |
| 4998 | |
| 4999 Expression *DotVarExp::toLvalue(Scope *sc, Expression *e) | |
| 5000 { | |
| 5001 //printf("DotVarExp::toLvalue(%s)\n", toChars()); | |
| 5002 return this; | |
| 5003 } | |
| 5004 | |
| 5005 Expression *DotVarExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 5006 { | |
| 5007 //printf("DotVarExp::modifiableLvalue(%s)\n", toChars()); | |
| 5008 | |
| 5009 if (var->isCtorinit()) | |
| 5010 { // It's only modifiable if inside the right constructor | |
| 5011 Dsymbol *s = sc->func; | |
| 5012 while (1) | |
| 5013 { | |
| 5014 FuncDeclaration *fd = NULL; | |
| 5015 if (s) | |
| 5016 fd = s->isFuncDeclaration(); | |
| 5017 if (fd && | |
| 5018 ((fd->isCtorDeclaration() && var->storage_class & STCfield) || | |
| 5019 (fd->isStaticCtorDeclaration() && !(var->storage_class & STCfield))) && | |
| 5020 fd->toParent() == var->toParent() && | |
| 5021 e1->op == TOKthis | |
| 5022 ) | |
| 5023 { | |
| 5024 VarDeclaration *v = var->isVarDeclaration(); | |
| 5025 assert(v); | |
| 5026 v->ctorinit = 1; | |
| 5027 //printf("setting ctorinit\n"); | |
| 5028 } | |
| 5029 else | |
| 5030 { | |
| 5031 if (s) | |
| 5032 { s = s->toParent2(); | |
| 5033 continue; | |
| 5034 } | |
| 5035 else | |
| 5036 { | |
| 5037 const char *p = var->isStatic() ? "static " : ""; | |
| 5038 error("can only initialize %sconst member %s inside %sconstructor", | |
| 5039 p, var->toChars(), p); | |
| 5040 } | |
| 5041 } | |
| 5042 break; | |
| 5043 } | |
| 5044 } | |
| 5045 return this; | |
| 5046 } | |
| 5047 | |
| 5048 void DotVarExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5049 { | |
| 5050 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 5051 buf->writeByte('.'); | |
| 5052 buf->writestring(var->toChars()); | |
| 5053 } | |
| 5054 | |
| 5055 /************************************************************/ | |
| 5056 | |
| 5057 /* Things like: | |
| 5058 * foo.bar!(args) | |
| 5059 */ | |
| 5060 | |
| 5061 DotTemplateInstanceExp::DotTemplateInstanceExp(Loc loc, Expression *e, TemplateInstance *ti) | |
| 5062 : UnaExp(loc, TOKdotti, sizeof(DotTemplateInstanceExp), e) | |
| 5063 { | |
| 5064 //printf("DotTemplateInstanceExp()\n"); | |
| 5065 this->ti = ti; | |
| 5066 } | |
| 5067 | |
| 5068 Expression *DotTemplateInstanceExp::syntaxCopy() | |
| 5069 { | |
| 5070 DotTemplateInstanceExp *de = new DotTemplateInstanceExp(loc, | |
| 5071 e1->syntaxCopy(), | |
| 5072 (TemplateInstance *)ti->syntaxCopy(NULL)); | |
| 5073 return de; | |
| 5074 } | |
| 5075 | |
| 5076 Expression *DotTemplateInstanceExp::semantic(Scope *sc) | |
| 5077 { Dsymbol *s; | |
| 5078 Dsymbol *s2; | |
| 5079 TemplateDeclaration *td; | |
| 5080 Expression *e; | |
| 5081 Identifier *id; | |
| 5082 Type *t1; | |
| 5083 Expression *eleft = NULL; | |
| 5084 Expression *eright; | |
| 5085 | |
| 5086 #if LOGSEMANTIC | |
| 5087 printf("DotTemplateInstanceExp::semantic('%s')\n", toChars()); | |
| 5088 #endif | |
| 5089 //e1->print(); | |
| 5090 //print(); | |
| 5091 e1 = e1->semantic(sc); | |
| 5092 t1 = e1->type; | |
| 5093 if (t1) | |
| 5094 t1 = t1->toBasetype(); | |
| 5095 //t1->print(); | |
| 5096 if (e1->op == TOKdotexp) | |
| 5097 { DotExp *de = (DotExp *)e1; | |
| 5098 eleft = de->e1; | |
| 5099 eright = de->e2; | |
| 5100 } | |
| 5101 else | |
| 5102 { eleft = NULL; | |
| 5103 eright = e1; | |
| 5104 } | |
| 5105 if (eright->op == TOKimport) | |
| 5106 { | |
| 5107 s = ((ScopeExp *)eright)->sds; | |
| 5108 } | |
| 5109 else if (e1->op == TOKtype) | |
| 5110 { | |
| 5111 s = t1->isClassHandle(); | |
| 5112 if (!s) | |
| 5113 { if (t1->ty == Tstruct) | |
| 5114 s = ((TypeStruct *)t1)->sym; | |
| 5115 else | |
| 5116 goto L1; | |
| 5117 } | |
| 5118 } | |
| 5119 else if (t1 && (t1->ty == Tstruct || t1->ty == Tclass)) | |
| 5120 { | |
| 5121 s = t1->toDsymbol(sc); | |
| 5122 eleft = e1; | |
| 5123 } | |
| 5124 else if (t1 && t1->ty == Tpointer) | |
| 5125 { | |
| 5126 t1 = t1->next->toBasetype(); | |
| 5127 if (t1->ty != Tstruct) | |
| 5128 goto L1; | |
| 5129 s = t1->toDsymbol(sc); | |
| 5130 eleft = e1; | |
| 5131 } | |
| 5132 else | |
| 5133 { | |
| 5134 L1: | |
| 5135 error("template %s is not a member of %s", ti->toChars(), e1->toChars()); | |
| 5136 goto Lerr; | |
| 5137 } | |
| 5138 | |
| 5139 assert(s); | |
| 5140 id = ti->name; | |
| 5141 s2 = s->search(loc, id, 0); | |
| 5142 if (!s2) | |
| 5143 { error("template identifier %s is not a member of %s %s", id->toChars(), s->kind(), s->ident->toChars()); | |
| 5144 goto Lerr; | |
| 5145 } | |
| 5146 s = s2; | |
| 5147 s->semantic(sc); | |
| 5148 s = s->toAlias(); | |
| 5149 td = s->isTemplateDeclaration(); | |
| 5150 if (!td) | |
| 5151 { | |
| 5152 error("%s is not a template", id->toChars()); | |
| 5153 goto Lerr; | |
| 5154 } | |
| 5155 if (global.errors) | |
| 5156 goto Lerr; | |
| 5157 | |
| 5158 ti->tempdecl = td; | |
| 5159 | |
| 5160 if (eleft) | |
| 5161 { Declaration *v; | |
| 5162 | |
| 5163 ti->semantic(sc); | |
| 5164 s = ti->inst->toAlias(); | |
| 5165 v = s->isDeclaration(); | |
| 5166 if (v) | |
| 5167 { e = new DotVarExp(loc, eleft, v); | |
| 5168 e = e->semantic(sc); | |
| 5169 return e; | |
| 5170 } | |
| 5171 } | |
| 5172 | |
| 5173 e = new ScopeExp(loc, ti); | |
| 5174 if (eleft) | |
| 5175 { | |
| 5176 e = new DotExp(loc, eleft, e); | |
| 5177 } | |
| 5178 e = e->semantic(sc); | |
| 5179 return e; | |
| 5180 | |
| 5181 Lerr: | |
| 5182 return new IntegerExp(0); | |
| 5183 } | |
| 5184 | |
| 5185 void DotTemplateInstanceExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5186 { | |
| 5187 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 5188 buf->writeByte('.'); | |
| 5189 ti->toCBuffer(buf, hgs); | |
| 5190 } | |
| 5191 | |
| 5192 /************************************************************/ | |
| 5193 | |
| 5194 DelegateExp::DelegateExp(Loc loc, Expression *e, FuncDeclaration *f) | |
| 5195 : UnaExp(loc, TOKdelegate, sizeof(DelegateExp), e) | |
| 5196 { | |
| 5197 this->func = f; | |
| 5198 } | |
| 5199 | |
| 5200 Expression *DelegateExp::semantic(Scope *sc) | |
| 5201 { | |
| 5202 #if LOGSEMANTIC | |
| 5203 printf("DelegateExp::semantic('%s')\n", toChars()); | |
| 5204 #endif | |
| 5205 if (!type) | |
| 5206 { | |
| 5207 e1 = e1->semantic(sc); | |
| 5208 type = new TypeDelegate(func->type); | |
| 5209 type = type->semantic(loc, sc); | |
| 5210 //----------------- | |
| 5211 /* For func, we need to get the | |
| 5212 * right 'this' pointer if func is in an outer class, but our | |
| 5213 * existing 'this' pointer is in an inner class. | |
| 5214 * This code is analogous to that used for variables | |
| 5215 * in DotVarExp::semantic(). | |
| 5216 */ | |
| 5217 AggregateDeclaration *ad = func->toParent()->isAggregateDeclaration(); | |
| 5218 L10: | |
| 5219 Type *t = e1->type; | |
| 5220 if (func->needThis() && ad && | |
| 5221 !(t->ty == Tpointer && t->next->ty == Tstruct && | |
| 5222 ((TypeStruct *)t->next)->sym == ad) && | |
| 5223 !(t->ty == Tstruct && ((TypeStruct *)t)->sym == ad) | |
| 5224 ) | |
| 5225 { | |
| 5226 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 5227 ClassDeclaration *tcd = t->isClassHandle(); | |
| 5228 | |
| 5229 if (!cd || !tcd || | |
| 5230 !(tcd == cd || cd->isBaseOf(tcd, NULL)) | |
| 5231 ) | |
| 5232 { | |
| 5233 if (tcd && tcd->isNested()) | |
| 5234 { // Try again with outer scope | |
| 5235 | |
| 5236 e1 = new DotVarExp(loc, e1, tcd->vthis); | |
| 5237 e1 = e1->semantic(sc); | |
| 5238 goto L10; | |
| 5239 } | |
| 5240 #ifdef DEBUG | |
| 5241 printf("3: "); | |
| 5242 #endif | |
| 5243 error("this for %s needs to be type %s not type %s", | |
| 5244 func->toChars(), ad->toChars(), t->toChars()); | |
| 5245 } | |
| 5246 } | |
| 5247 //----------------- | |
| 5248 } | |
| 5249 return this; | |
| 5250 } | |
| 5251 | |
| 5252 void DelegateExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5253 { | |
| 5254 buf->writeByte('&'); | |
| 5255 if (!func->isNested()) | |
| 5256 { | |
| 5257 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 5258 buf->writeByte('.'); | |
| 5259 } | |
| 5260 buf->writestring(func->toChars()); | |
| 5261 } | |
| 5262 | |
| 5263 /************************************************************/ | |
| 5264 | |
| 5265 DotTypeExp::DotTypeExp(Loc loc, Expression *e, Dsymbol *s) | |
| 5266 : UnaExp(loc, TOKdottype, sizeof(DotTypeExp), e) | |
| 5267 { | |
| 5268 this->sym = s; | |
| 5269 this->type = s->getType(); | |
| 5270 } | |
| 5271 | |
| 5272 Expression *DotTypeExp::semantic(Scope *sc) | |
| 5273 { | |
| 5274 #if LOGSEMANTIC | |
| 5275 printf("DotTypeExp::semantic('%s')\n", toChars()); | |
| 5276 #endif | |
| 5277 UnaExp::semantic(sc); | |
| 5278 return this; | |
| 5279 } | |
| 5280 | |
| 5281 void DotTypeExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5282 { | |
| 5283 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 5284 buf->writeByte('.'); | |
| 5285 buf->writestring(sym->toChars()); | |
| 5286 } | |
| 5287 | |
| 5288 /************************************************************/ | |
| 5289 | |
| 5290 CallExp::CallExp(Loc loc, Expression *e, Expressions *exps) | |
| 5291 : UnaExp(loc, TOKcall, sizeof(CallExp), e) | |
| 5292 { | |
| 5293 this->arguments = exps; | |
| 5294 } | |
| 5295 | |
| 5296 CallExp::CallExp(Loc loc, Expression *e) | |
| 5297 : UnaExp(loc, TOKcall, sizeof(CallExp), e) | |
| 5298 { | |
| 5299 this->arguments = NULL; | |
| 5300 } | |
| 5301 | |
| 5302 CallExp::CallExp(Loc loc, Expression *e, Expression *earg1) | |
| 5303 : UnaExp(loc, TOKcall, sizeof(CallExp), e) | |
| 5304 { | |
| 5305 Expressions *arguments = new Expressions(); | |
| 5306 arguments->setDim(1); | |
| 5307 arguments->data[0] = (void *)earg1; | |
| 5308 | |
| 5309 this->arguments = arguments; | |
| 5310 } | |
| 5311 | |
| 5312 CallExp::CallExp(Loc loc, Expression *e, Expression *earg1, Expression *earg2) | |
| 5313 : UnaExp(loc, TOKcall, sizeof(CallExp), e) | |
| 5314 { | |
| 5315 Expressions *arguments = new Expressions(); | |
| 5316 arguments->setDim(2); | |
| 5317 arguments->data[0] = (void *)earg1; | |
| 5318 arguments->data[1] = (void *)earg2; | |
| 5319 | |
| 5320 this->arguments = arguments; | |
| 5321 } | |
| 5322 | |
| 5323 Expression *CallExp::syntaxCopy() | |
| 5324 { | |
| 5325 return new CallExp(loc, e1->syntaxCopy(), arraySyntaxCopy(arguments)); | |
| 5326 } | |
| 5327 | |
| 5328 | |
| 5329 Expression *CallExp::semantic(Scope *sc) | |
| 5330 { | |
| 5331 TypeFunction *tf; | |
| 5332 FuncDeclaration *f; | |
| 5333 int i; | |
| 5334 Type *t1; | |
| 5335 int istemp; | |
| 5336 | |
| 5337 #if LOGSEMANTIC | |
| 19 | 5338 printf("CallExp::semantic() %s\n", toChars()); |
| 1 | 5339 #endif |
| 5340 if (type) | |
| 5341 return this; // semantic() already run | |
| 5342 #if 0 | |
| 5343 if (arguments && arguments->dim) | |
| 5344 { | |
| 5345 Expression *earg = (Expression *)arguments->data[0]; | |
| 5346 earg->print(); | |
| 5347 if (earg->type) earg->type->print(); | |
| 5348 } | |
| 5349 #endif | |
| 5350 | |
| 5351 if (e1->op == TOKdelegate) | |
| 5352 { DelegateExp *de = (DelegateExp *)e1; | |
| 5353 | |
| 5354 e1 = new DotVarExp(de->loc, de->e1, de->func); | |
| 5355 return semantic(sc); | |
| 5356 } | |
| 5357 | |
| 5358 /* Transform: | |
| 5359 * array.id(args) into id(array,args) | |
| 5360 * aa.remove(arg) into delete aa[arg] | |
| 5361 */ | |
| 5362 if (e1->op == TOKdot) | |
| 5363 { | |
| 5364 // BUG: we should handle array.a.b.c.e(args) too | |
| 5365 | |
| 5366 DotIdExp *dotid = (DotIdExp *)(e1); | |
| 5367 dotid->e1 = dotid->e1->semantic(sc); | |
| 5368 assert(dotid->e1); | |
| 5369 if (dotid->e1->type) | |
| 5370 { | |
| 5371 TY e1ty = dotid->e1->type->toBasetype()->ty; | |
| 5372 if (e1ty == Taarray && dotid->ident == Id::remove) | |
| 5373 { | |
| 5374 if (!arguments || arguments->dim != 1) | |
| 5375 { error("expected key as argument to aa.remove()"); | |
| 5376 goto Lagain; | |
| 5377 } | |
| 5378 Expression *key = (Expression *)arguments->data[0]; | |
| 5379 key = key->semantic(sc); | |
| 5380 key = resolveProperties(sc, key); | |
| 5381 key->rvalue(); | |
| 5382 | |
| 5383 TypeAArray *taa = (TypeAArray *)dotid->e1->type->toBasetype(); | |
| 5384 key = key->implicitCastTo(sc, taa->index); | |
| 5385 key = key->implicitCastTo(sc, taa->key); | |
| 5386 | |
| 5387 return new RemoveExp(loc, dotid->e1, key); | |
| 5388 } | |
| 5389 else if (e1ty == Tarray || e1ty == Tsarray || e1ty == Taarray) | |
| 5390 { | |
| 5391 if (!arguments) | |
| 5392 arguments = new Expressions(); | |
| 5393 arguments->shift(dotid->e1); | |
| 5394 e1 = new IdentifierExp(dotid->loc, dotid->ident); | |
| 5395 } | |
| 5396 } | |
| 5397 } | |
| 5398 | |
| 5399 istemp = 0; | |
| 5400 Lagain: | |
| 5401 f = NULL; | |
| 5402 if (e1->op == TOKthis || e1->op == TOKsuper) | |
| 5403 { | |
| 5404 // semantic() run later for these | |
| 5405 } | |
| 5406 else | |
| 5407 { | |
| 5408 UnaExp::semantic(sc); | |
| 5409 | |
| 5410 /* Look for e1 being a lazy parameter | |
| 5411 */ | |
| 5412 if (e1->op == TOKvar) | |
| 5413 { VarExp *ve = (VarExp *)e1; | |
| 5414 | |
| 5415 if (ve->var->storage_class & STClazy) | |
| 5416 { | |
| 5417 TypeFunction *tf = new TypeFunction(NULL, ve->var->type, 0, LINKd); | |
| 5418 TypeDelegate *t = new TypeDelegate(tf); | |
| 5419 ve->type = t->semantic(loc, sc); | |
| 5420 } | |
| 5421 } | |
| 5422 | |
| 5423 if (e1->op == TOKimport) | |
| 5424 { // Perhaps this should be moved to ScopeExp::semantic() | |
| 5425 ScopeExp *se = (ScopeExp *)e1; | |
| 5426 e1 = new DsymbolExp(loc, se->sds); | |
| 5427 e1 = e1->semantic(sc); | |
| 5428 } | |
| 5429 #if 1 // patch for #540 by Oskar Linde | |
| 5430 else if (e1->op == TOKdotexp) | |
| 5431 { | |
| 5432 DotExp *de = (DotExp *) e1; | |
| 5433 | |
| 5434 if (de->e2->op == TOKimport) | |
| 5435 { // This should *really* be moved to ScopeExp::semantic() | |
| 5436 ScopeExp *se = (ScopeExp *)de->e2; | |
| 5437 de->e2 = new DsymbolExp(loc, se->sds); | |
| 5438 de->e2 = de->e2->semantic(sc); | |
| 5439 } | |
| 5440 | |
| 5441 if (de->e2->op == TOKtemplate) | |
| 5442 { TemplateExp *te = (TemplateExp *) de->e2; | |
| 5443 e1 = new DotTemplateExp(loc,de->e1,te->td); | |
| 5444 } | |
| 5445 } | |
| 5446 #endif | |
| 5447 } | |
| 5448 | |
| 5449 if (e1->op == TOKcomma) | |
| 5450 { | |
| 5451 CommaExp *ce = (CommaExp *)e1; | |
| 5452 | |
| 5453 e1 = ce->e2; | |
| 5454 e1->type = ce->type; | |
| 5455 ce->e2 = this; | |
| 5456 ce->type = NULL; | |
| 5457 return ce->semantic(sc); | |
| 5458 } | |
| 5459 | |
| 5460 t1 = NULL; | |
| 5461 if (e1->type) | |
| 5462 t1 = e1->type->toBasetype(); | |
| 5463 | |
| 5464 // Check for call operator overload | |
| 5465 if (t1) | |
| 5466 { AggregateDeclaration *ad; | |
| 5467 | |
| 5468 if (t1->ty == Tstruct) | |
| 5469 { | |
| 5470 ad = ((TypeStruct *)t1)->sym; | |
| 5471 if (search_function(ad, Id::call)) | |
| 5472 goto L1; // overload of opCall, therefore it's a call | |
| 19 | 5473 |
| 5474 if (e1->op != TOKtype) | |
| 5475 error("%s %s does not overload ()", ad->kind(), ad->toChars()); | |
| 1 | 5476 /* It's a struct literal |
| 5477 */ | |
| 5478 Expression *e = new StructLiteralExp(loc, (StructDeclaration *)ad, arguments); | |
| 5479 e = e->semantic(sc); | |
|
35
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
5480 e->type = e1->type; // in case e1->type was a typedef |
| 1 | 5481 return e; |
| 5482 } | |
| 5483 else if (t1->ty == Tclass) | |
| 5484 { | |
| 5485 ad = ((TypeClass *)t1)->sym; | |
| 5486 goto L1; | |
| 5487 L1: | |
| 5488 // Rewrite as e1.call(arguments) | |
| 5489 Expression *e = new DotIdExp(loc, e1, Id::call); | |
| 5490 e = new CallExp(loc, e, arguments); | |
| 5491 e = e->semantic(sc); | |
| 5492 return e; | |
| 5493 } | |
| 5494 } | |
| 5495 | |
| 5496 arrayExpressionSemantic(arguments, sc); | |
| 5497 preFunctionArguments(loc, sc, arguments); | |
| 5498 | |
| 5499 if (e1->op == TOKdotvar && t1->ty == Tfunction || | |
| 5500 e1->op == TOKdottd) | |
| 5501 { | |
| 5502 DotVarExp *dve; | |
| 5503 DotTemplateExp *dte; | |
| 5504 AggregateDeclaration *ad; | |
| 5505 UnaExp *ue = (UnaExp *)(e1); | |
| 5506 | |
| 5507 if (e1->op == TOKdotvar) | |
| 5508 { // Do overload resolution | |
| 5509 dve = (DotVarExp *)(e1); | |
| 5510 | |
| 5511 f = dve->var->isFuncDeclaration(); | |
| 5512 assert(f); | |
| 5513 f = f->overloadResolve(loc, arguments); | |
| 5514 | |
| 5515 ad = f->toParent()->isAggregateDeclaration(); | |
| 5516 } | |
| 5517 else | |
| 5518 { dte = (DotTemplateExp *)(e1); | |
| 5519 TemplateDeclaration *td = dte->td; | |
| 5520 assert(td); | |
| 5521 if (!arguments) | |
| 5522 // Should fix deduce() so it works on NULL argument | |
| 5523 arguments = new Expressions(); | |
| 5524 f = td->deduce(sc, loc, NULL, arguments); | |
| 5525 if (!f) | |
| 5526 { type = Type::terror; | |
| 5527 return this; | |
| 5528 } | |
| 5529 ad = td->toParent()->isAggregateDeclaration(); | |
| 5530 } | |
| 5531 /* Now that we have the right function f, we need to get the | |
| 5532 * right 'this' pointer if f is in an outer class, but our | |
| 5533 * existing 'this' pointer is in an inner class. | |
| 5534 * This code is analogous to that used for variables | |
| 5535 * in DotVarExp::semantic(). | |
| 5536 */ | |
| 5537 L10: | |
| 5538 Type *t = ue->e1->type->toBasetype(); | |
| 5539 if (f->needThis() && ad && | |
| 5540 !(t->ty == Tpointer && t->next->ty == Tstruct && | |
| 5541 ((TypeStruct *)t->next)->sym == ad) && | |
| 5542 !(t->ty == Tstruct && ((TypeStruct *)t)->sym == ad) | |
| 5543 ) | |
| 5544 { | |
| 5545 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 5546 ClassDeclaration *tcd = t->isClassHandle(); | |
| 5547 | |
| 5548 if (!cd || !tcd || | |
| 5549 !(tcd == cd || cd->isBaseOf(tcd, NULL)) | |
| 5550 ) | |
| 5551 { | |
| 5552 if (tcd && tcd->isNested()) | |
| 5553 { // Try again with outer scope | |
| 5554 | |
| 5555 ue->e1 = new DotVarExp(loc, ue->e1, tcd->vthis); | |
| 5556 ue->e1 = ue->e1->semantic(sc); | |
| 5557 goto L10; | |
| 5558 } | |
| 5559 #ifdef DEBUG | |
| 5560 printf("1: "); | |
| 5561 #endif | |
| 5562 error("this for %s needs to be type %s not type %s", | |
| 5563 f->toChars(), ad->toChars(), t->toChars()); | |
| 5564 } | |
| 5565 } | |
| 5566 | |
| 5567 checkDeprecated(sc, f); | |
| 5568 accessCheck(loc, sc, ue->e1, f); | |
| 5569 if (!f->needThis()) | |
| 5570 { | |
| 5571 VarExp *ve = new VarExp(loc, f); | |
| 5572 e1 = new CommaExp(loc, ue->e1, ve); | |
| 5573 e1->type = f->type; | |
| 5574 } | |
| 5575 else | |
| 5576 { | |
| 5577 if (e1->op == TOKdotvar) | |
| 5578 dve->var = f; | |
| 5579 else | |
| 5580 e1 = new DotVarExp(loc, dte->e1, f); | |
| 5581 e1->type = f->type; | |
| 5582 | |
| 5583 // See if we need to adjust the 'this' pointer | |
| 5584 AggregateDeclaration *ad = f->isThis(); | |
| 5585 ClassDeclaration *cd = ue->e1->type->isClassHandle(); | |
| 5586 if (ad && cd && ad->isClassDeclaration() && ad != cd && | |
| 5587 ue->e1->op != TOKsuper) | |
| 5588 { | |
| 5589 ue->e1 = ue->e1->castTo(sc, ad->type); //new CastExp(loc, ue->e1, ad->type); | |
| 5590 ue->e1 = ue->e1->semantic(sc); | |
| 5591 } | |
| 5592 } | |
| 5593 t1 = e1->type; | |
| 5594 } | |
| 5595 else if (e1->op == TOKsuper) | |
| 5596 { | |
| 5597 // Base class constructor call | |
| 5598 ClassDeclaration *cd = NULL; | |
| 5599 | |
| 5600 if (sc->func) | |
| 5601 cd = sc->func->toParent()->isClassDeclaration(); | |
| 5602 if (!cd || !cd->baseClass || !sc->func->isCtorDeclaration()) | |
| 5603 { | |
| 5604 error("super class constructor call must be in a constructor"); | |
| 5605 type = Type::terror; | |
| 5606 return this; | |
| 5607 } | |
| 5608 else | |
| 5609 { | |
| 5610 f = cd->baseClass->ctor; | |
| 5611 if (!f) | |
| 5612 { error("no super class constructor for %s", cd->baseClass->toChars()); | |
| 5613 type = Type::terror; | |
| 5614 return this; | |
| 5615 } | |
| 5616 else | |
| 5617 { | |
| 5618 #if 0 | |
| 5619 if (sc->callSuper & (CSXthis | CSXsuper)) | |
| 5620 error("reference to this before super()"); | |
| 5621 #endif | |
| 5622 if (sc->noctor || sc->callSuper & CSXlabel) | |
| 5623 error("constructor calls not allowed in loops or after labels"); | |
| 5624 if (sc->callSuper & (CSXsuper_ctor | CSXthis_ctor)) | |
| 5625 error("multiple constructor calls"); | |
| 5626 sc->callSuper |= CSXany_ctor | CSXsuper_ctor; | |
| 5627 | |
| 5628 f = f->overloadResolve(loc, arguments); | |
| 5629 checkDeprecated(sc, f); | |
| 5630 e1 = new DotVarExp(e1->loc, e1, f); | |
| 5631 e1 = e1->semantic(sc); | |
| 5632 t1 = e1->type; | |
| 5633 } | |
| 5634 } | |
| 5635 } | |
| 5636 else if (e1->op == TOKthis) | |
| 5637 { | |
| 5638 // same class constructor call | |
| 5639 ClassDeclaration *cd = NULL; | |
| 5640 | |
| 5641 if (sc->func) | |
| 5642 cd = sc->func->toParent()->isClassDeclaration(); | |
| 5643 if (!cd || !sc->func->isCtorDeclaration()) | |
| 5644 { | |
| 5645 error("class constructor call must be in a constructor"); | |
| 5646 type = Type::terror; | |
| 5647 return this; | |
| 5648 } | |
| 5649 else | |
| 5650 { | |
| 5651 #if 0 | |
| 5652 if (sc->callSuper & (CSXthis | CSXsuper)) | |
| 5653 error("reference to this before super()"); | |
| 5654 #endif | |
| 5655 if (sc->noctor || sc->callSuper & CSXlabel) | |
| 5656 error("constructor calls not allowed in loops or after labels"); | |
| 5657 if (sc->callSuper & (CSXsuper_ctor | CSXthis_ctor)) | |
| 5658 error("multiple constructor calls"); | |
| 5659 sc->callSuper |= CSXany_ctor | CSXthis_ctor; | |
| 5660 | |
| 5661 f = cd->ctor; | |
| 5662 f = f->overloadResolve(loc, arguments); | |
| 5663 checkDeprecated(sc, f); | |
| 5664 e1 = new DotVarExp(e1->loc, e1, f); | |
| 5665 e1 = e1->semantic(sc); | |
| 5666 t1 = e1->type; | |
| 5667 | |
| 5668 // BUG: this should really be done by checking the static | |
| 5669 // call graph | |
| 5670 if (f == sc->func) | |
| 5671 error("cyclic constructor call"); | |
| 5672 } | |
| 5673 } | |
| 5674 else if (!t1) | |
| 5675 { | |
| 5676 error("function expected before (), not '%s'", e1->toChars()); | |
| 5677 type = Type::terror; | |
| 5678 return this; | |
| 5679 } | |
| 5680 else if (t1->ty != Tfunction) | |
| 5681 { | |
| 5682 if (t1->ty == Tdelegate) | |
| 5683 { | |
| 5684 assert(t1->next->ty == Tfunction); | |
| 5685 tf = (TypeFunction *)(t1->next); | |
| 5686 goto Lcheckargs; | |
| 5687 } | |
| 5688 else if (t1->ty == Tpointer && t1->next->ty == Tfunction) | |
| 5689 { Expression *e; | |
| 5690 | |
| 5691 e = new PtrExp(loc, e1); | |
| 5692 t1 = t1->next; | |
| 5693 e->type = t1; | |
| 5694 e1 = e; | |
| 5695 } | |
| 5696 else if (e1->op == TOKtemplate) | |
| 5697 { | |
| 5698 TemplateExp *te = (TemplateExp *)e1; | |
| 5699 f = te->td->deduce(sc, loc, NULL, arguments); | |
| 5700 if (!f) | |
| 5701 { type = Type::terror; | |
| 5702 return this; | |
| 5703 } | |
| 5704 if (f->needThis() && hasThis(sc)) | |
| 5705 { | |
| 5706 // Supply an implicit 'this', as in | |
| 5707 // this.ident | |
| 5708 | |
| 5709 e1 = new DotTemplateExp(loc, (new ThisExp(loc))->semantic(sc), te->td); | |
| 5710 goto Lagain; | |
| 5711 } | |
| 5712 | |
| 5713 e1 = new VarExp(loc, f); | |
| 5714 goto Lagain; | |
| 5715 } | |
| 5716 else | |
| 5717 { error("function expected before (), not %s of type %s", e1->toChars(), e1->type->toChars()); | |
| 5718 type = Type::terror; | |
| 5719 return this; | |
| 5720 } | |
| 5721 } | |
| 5722 else if (e1->op == TOKvar) | |
| 5723 { | |
| 5724 // Do overload resolution | |
| 5725 VarExp *ve = (VarExp *)e1; | |
| 5726 | |
| 5727 f = ve->var->isFuncDeclaration(); | |
| 5728 assert(f); | |
| 5729 | |
| 5730 // Look to see if f is really a function template | |
| 5731 if (0 && !istemp && f->parent) | |
| 5732 { TemplateInstance *ti = f->parent->isTemplateInstance(); | |
| 5733 | |
| 5734 if (ti && | |
| 5735 (ti->name == f->ident || | |
| 5736 ti->toAlias()->ident == f->ident) | |
| 5737 && | |
| 5738 ti->tempdecl) | |
| 5739 { | |
| 5740 /* This is so that one can refer to the enclosing | |
| 5741 * template, even if it has the same name as a member | |
| 5742 * of the template, if it has a !(arguments) | |
| 5743 */ | |
| 5744 TemplateDeclaration *tempdecl = ti->tempdecl; | |
| 5745 if (tempdecl->overroot) // if not start of overloaded list of TemplateDeclaration's | |
| 5746 tempdecl = tempdecl->overroot; // then get the start | |
| 5747 e1 = new TemplateExp(loc, tempdecl); | |
| 5748 istemp = 1; | |
| 5749 goto Lagain; | |
| 5750 } | |
| 5751 } | |
| 5752 | |
| 5753 f = f->overloadResolve(loc, arguments); | |
| 5754 checkDeprecated(sc, f); | |
| 5755 | |
| 5756 if (f->needThis() && hasThis(sc)) | |
| 5757 { | |
| 5758 // Supply an implicit 'this', as in | |
| 5759 // this.ident | |
| 5760 | |
| 5761 e1 = new DotVarExp(loc, new ThisExp(loc), f); | |
| 5762 goto Lagain; | |
| 5763 } | |
| 5764 | |
| 5765 accessCheck(loc, sc, NULL, f); | |
| 5766 | |
| 5767 ve->var = f; | |
| 5768 ve->type = f->type; | |
| 5769 t1 = f->type; | |
| 5770 } | |
| 5771 assert(t1->ty == Tfunction); | |
| 5772 tf = (TypeFunction *)(t1); | |
| 5773 | |
| 5774 Lcheckargs: | |
| 5775 assert(tf->ty == Tfunction); | |
| 5776 type = tf->next; | |
| 5777 | |
| 5778 if (!arguments) | |
| 5779 arguments = new Expressions(); | |
| 5780 functionArguments(loc, sc, tf, arguments); | |
| 5781 | |
| 5782 assert(type); | |
| 5783 | |
| 5784 if (f && f->tintro) | |
| 5785 { | |
| 5786 Type *t = type; | |
| 5787 int offset = 0; | |
| 5788 | |
| 5789 if (f->tintro->next->isBaseOf(t, &offset) && offset) | |
| 5790 { | |
| 5791 type = f->tintro->next; | |
| 5792 return castTo(sc, t); | |
| 5793 } | |
| 5794 } | |
| 5795 | |
| 5796 return this; | |
| 5797 } | |
| 5798 | |
| 5799 int CallExp::checkSideEffect(int flag) | |
| 5800 { | |
| 5801 return 1; | |
| 5802 } | |
| 5803 | |
| 5804 Expression *CallExp::toLvalue(Scope *sc, Expression *e) | |
| 5805 { | |
| 5806 if (type->toBasetype()->ty == Tstruct) | |
| 5807 return this; | |
| 5808 else | |
| 5809 return Expression::toLvalue(sc, e); | |
| 5810 } | |
| 5811 | |
| 5812 void CallExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5813 { int i; | |
| 5814 | |
| 5815 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 5816 buf->writeByte('('); | |
| 5817 argsToCBuffer(buf, arguments, hgs); | |
| 5818 buf->writeByte(')'); | |
| 5819 } | |
| 5820 | |
| 5821 | |
| 5822 /************************************************************/ | |
| 5823 | |
| 5824 AddrExp::AddrExp(Loc loc, Expression *e) | |
| 5825 : UnaExp(loc, TOKaddress, sizeof(AddrExp), e) | |
| 5826 { | |
| 5827 } | |
| 5828 | |
| 5829 Expression *AddrExp::semantic(Scope *sc) | |
| 5830 { | |
| 5831 #if LOGSEMANTIC | |
| 5832 printf("AddrExp::semantic('%s')\n", toChars()); | |
| 5833 #endif | |
| 5834 if (!type) | |
| 5835 { | |
| 5836 UnaExp::semantic(sc); | |
| 5837 e1 = e1->toLvalue(sc, NULL); | |
| 5838 if (!e1->type) | |
| 5839 { | |
| 5840 error("cannot take address of %s", e1->toChars()); | |
| 5841 type = Type::tint32; | |
| 5842 return this; | |
| 5843 } | |
| 5844 type = e1->type->pointerTo(); | |
| 5845 | |
| 5846 // See if this should really be a delegate | |
| 5847 if (e1->op == TOKdotvar) | |
| 5848 { | |
| 5849 DotVarExp *dve = (DotVarExp *)e1; | |
| 5850 FuncDeclaration *f = dve->var->isFuncDeclaration(); | |
| 5851 | |
| 5852 if (f) | |
| 5853 { Expression *e; | |
| 5854 | |
| 5855 e = new DelegateExp(loc, dve->e1, f); | |
| 5856 e = e->semantic(sc); | |
| 5857 return e; | |
| 5858 } | |
| 5859 } | |
| 5860 else if (e1->op == TOKvar) | |
| 5861 { | |
| 5862 VarExp *dve = (VarExp *)e1; | |
| 5863 FuncDeclaration *f = dve->var->isFuncDeclaration(); | |
| 5864 | |
| 5865 if (f && f->isNested()) | |
| 5866 { Expression *e; | |
| 5867 | |
| 5868 e = new DelegateExp(loc, e1, f); | |
| 5869 e = e->semantic(sc); | |
| 5870 return e; | |
| 5871 } | |
| 5872 } | |
| 5873 else if (e1->op == TOKarray) | |
| 5874 { | |
| 5875 if (e1->type->toBasetype()->ty == Tbit) | |
| 5876 error("cannot take address of bit in array"); | |
| 5877 } | |
| 5878 return optimize(WANTvalue); | |
| 5879 } | |
| 5880 return this; | |
| 5881 } | |
| 5882 | |
| 5883 /************************************************************/ | |
| 5884 | |
| 5885 PtrExp::PtrExp(Loc loc, Expression *e) | |
| 5886 : UnaExp(loc, TOKstar, sizeof(PtrExp), e) | |
| 5887 { | |
| 5888 if (e->type) | |
| 5889 type = e->type->next; | |
| 5890 } | |
| 5891 | |
| 5892 PtrExp::PtrExp(Loc loc, Expression *e, Type *t) | |
| 5893 : UnaExp(loc, TOKstar, sizeof(PtrExp), e) | |
| 5894 { | |
| 5895 type = t; | |
| 5896 } | |
| 5897 | |
| 5898 Expression *PtrExp::semantic(Scope *sc) | |
| 5899 { Type *tb; | |
| 5900 | |
| 5901 #if LOGSEMANTIC | |
| 5902 printf("PtrExp::semantic('%s')\n", toChars()); | |
| 5903 #endif | |
| 5904 UnaExp::semantic(sc); | |
| 5905 e1 = resolveProperties(sc, e1); | |
| 5906 if (type) | |
| 5907 return this; | |
| 5908 if (!e1->type) | |
| 5909 printf("PtrExp::semantic('%s')\n", toChars()); | |
| 5910 tb = e1->type->toBasetype(); | |
| 5911 switch (tb->ty) | |
| 5912 { | |
| 5913 case Tpointer: | |
| 5914 type = tb->next; | |
| 5915 if (type->isbit()) | |
| 5916 { Expression *e; | |
| 5917 | |
| 5918 // Rewrite *p as p[0] | |
| 5919 e = new IndexExp(loc, e1, new IntegerExp(0)); | |
| 5920 return e->semantic(sc); | |
| 5921 } | |
| 5922 break; | |
| 5923 | |
| 5924 case Tsarray: | |
| 5925 case Tarray: | |
| 5926 type = tb->next; | |
| 5927 e1 = e1->castTo(sc, type->pointerTo()); | |
| 5928 break; | |
| 5929 | |
| 5930 default: | |
| 5931 error("can only * a pointer, not a '%s'", e1->type->toChars()); | |
| 5932 type = Type::tint32; | |
| 5933 break; | |
| 5934 } | |
| 5935 rvalue(); | |
| 5936 return this; | |
| 5937 } | |
| 5938 | |
| 5939 Expression *PtrExp::toLvalue(Scope *sc, Expression *e) | |
| 5940 { | |
| 5941 #if 0 | |
| 5942 tym = tybasic(e1->ET->Tty); | |
| 5943 if (!(tyscalar(tym) || | |
| 5944 tym == TYstruct || | |
| 5945 tym == TYarray && e->Eoper == TOKaddr)) | |
| 5946 synerr(EM_lvalue); // lvalue expected | |
| 5947 #endif | |
| 5948 return this; | |
| 5949 } | |
| 5950 | |
| 5951 void PtrExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5952 { | |
| 5953 buf->writeByte('*'); | |
| 5954 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 5955 } | |
| 5956 | |
| 5957 /************************************************************/ | |
| 5958 | |
| 5959 NegExp::NegExp(Loc loc, Expression *e) | |
| 5960 : UnaExp(loc, TOKneg, sizeof(NegExp), e) | |
| 5961 { | |
| 5962 } | |
| 5963 | |
| 5964 Expression *NegExp::semantic(Scope *sc) | |
| 5965 { Expression *e; | |
| 5966 | |
| 5967 #if LOGSEMANTIC | |
| 5968 printf("NegExp::semantic('%s')\n", toChars()); | |
| 5969 #endif | |
| 5970 if (!type) | |
| 5971 { | |
| 5972 UnaExp::semantic(sc); | |
| 5973 e1 = resolveProperties(sc, e1); | |
| 5974 e = op_overload(sc); | |
| 5975 if (e) | |
| 5976 return e; | |
| 5977 | |
| 5978 e1->checkNoBool(); | |
| 5979 e1->checkArithmetic(); | |
| 5980 type = e1->type; | |
| 5981 } | |
| 5982 return this; | |
| 5983 } | |
| 5984 | |
| 5985 /************************************************************/ | |
| 5986 | |
| 5987 UAddExp::UAddExp(Loc loc, Expression *e) | |
| 5988 : UnaExp(loc, TOKuadd, sizeof(UAddExp), e) | |
| 5989 { | |
| 5990 } | |
| 5991 | |
| 5992 Expression *UAddExp::semantic(Scope *sc) | |
| 5993 { Expression *e; | |
| 5994 | |
| 5995 #if LOGSEMANTIC | |
| 5996 printf("UAddExp::semantic('%s')\n", toChars()); | |
| 5997 #endif | |
| 5998 assert(!type); | |
| 5999 UnaExp::semantic(sc); | |
| 6000 e1 = resolveProperties(sc, e1); | |
| 6001 e = op_overload(sc); | |
| 6002 if (e) | |
| 6003 return e; | |
| 6004 e1->checkNoBool(); | |
| 6005 e1->checkArithmetic(); | |
| 6006 return e1; | |
| 6007 } | |
| 6008 | |
| 6009 /************************************************************/ | |
| 6010 | |
| 6011 ComExp::ComExp(Loc loc, Expression *e) | |
| 6012 : UnaExp(loc, TOKtilde, sizeof(ComExp), e) | |
| 6013 { | |
| 6014 } | |
| 6015 | |
| 6016 Expression *ComExp::semantic(Scope *sc) | |
| 6017 { Expression *e; | |
| 6018 | |
| 6019 if (!type) | |
| 6020 { | |
| 6021 UnaExp::semantic(sc); | |
| 6022 e1 = resolveProperties(sc, e1); | |
| 6023 e = op_overload(sc); | |
| 6024 if (e) | |
| 6025 return e; | |
| 6026 | |
| 6027 e1->checkNoBool(); | |
| 6028 e1 = e1->checkIntegral(); | |
| 6029 type = e1->type; | |
| 6030 } | |
| 6031 return this; | |
| 6032 } | |
| 6033 | |
| 6034 /************************************************************/ | |
| 6035 | |
| 6036 NotExp::NotExp(Loc loc, Expression *e) | |
| 6037 : UnaExp(loc, TOKnot, sizeof(NotExp), e) | |
| 6038 { | |
| 6039 } | |
| 6040 | |
| 6041 Expression *NotExp::semantic(Scope *sc) | |
| 6042 { | |
| 6043 UnaExp::semantic(sc); | |
| 6044 e1 = resolveProperties(sc, e1); | |
| 6045 e1 = e1->checkToBoolean(); | |
| 6046 type = Type::tboolean; | |
| 6047 return this; | |
| 6048 } | |
| 6049 | |
| 6050 int NotExp::isBit() | |
| 6051 { | |
| 6052 return TRUE; | |
| 6053 } | |
| 6054 | |
| 6055 | |
| 6056 | |
| 6057 /************************************************************/ | |
| 6058 | |
| 6059 BoolExp::BoolExp(Loc loc, Expression *e, Type *t) | |
| 6060 : UnaExp(loc, TOKtobool, sizeof(BoolExp), e) | |
| 6061 { | |
| 6062 type = t; | |
| 6063 } | |
| 6064 | |
| 6065 Expression *BoolExp::semantic(Scope *sc) | |
| 6066 { | |
| 6067 UnaExp::semantic(sc); | |
| 6068 e1 = resolveProperties(sc, e1); | |
| 6069 e1 = e1->checkToBoolean(); | |
| 6070 type = Type::tboolean; | |
| 6071 return this; | |
| 6072 } | |
| 6073 | |
| 6074 int BoolExp::isBit() | |
| 6075 { | |
| 6076 return TRUE; | |
| 6077 } | |
| 6078 | |
| 6079 /************************************************************/ | |
| 6080 | |
| 6081 DeleteExp::DeleteExp(Loc loc, Expression *e) | |
| 6082 : UnaExp(loc, TOKdelete, sizeof(DeleteExp), e) | |
| 6083 { | |
| 6084 } | |
| 6085 | |
| 6086 Expression *DeleteExp::semantic(Scope *sc) | |
| 6087 { | |
| 6088 Type *tb; | |
| 6089 | |
| 6090 UnaExp::semantic(sc); | |
| 6091 e1 = resolveProperties(sc, e1); | |
| 6092 e1 = e1->toLvalue(sc, NULL); | |
| 6093 type = Type::tvoid; | |
| 6094 | |
| 6095 tb = e1->type->toBasetype(); | |
| 6096 switch (tb->ty) | |
| 6097 { case Tclass: | |
| 6098 { TypeClass *tc = (TypeClass *)tb; | |
| 6099 ClassDeclaration *cd = tc->sym; | |
| 6100 | |
|
35
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
6101 if (cd->isCOMinterface()) |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
6102 { /* 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
|
6103 */ |
| 1 | 6104 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
|
6105 } |
| 1 | 6106 break; |
| 6107 } | |
| 6108 case Tpointer: | |
| 6109 tb = tb->next->toBasetype(); | |
| 6110 if (tb->ty == Tstruct) | |
| 6111 { | |
| 6112 TypeStruct *ts = (TypeStruct *)tb; | |
| 6113 StructDeclaration *sd = ts->sym; | |
| 6114 FuncDeclaration *f = sd->aggDelete; | |
| 6115 | |
| 6116 if (f) | |
| 6117 { | |
| 6118 Expression *e; | |
| 6119 Expression *ec; | |
| 6120 Type *tpv = Type::tvoid->pointerTo(); | |
| 6121 | |
| 6122 e = e1; | |
| 6123 e->type = tpv; | |
| 6124 ec = new VarExp(loc, f); | |
| 6125 e = new CallExp(loc, ec, e); | |
| 6126 return e->semantic(sc); | |
| 6127 } | |
| 6128 } | |
| 6129 break; | |
| 6130 | |
| 6131 case Tarray: | |
| 6132 break; | |
| 6133 | |
| 6134 default: | |
| 6135 if (e1->op == TOKindex) | |
| 6136 { | |
| 6137 IndexExp *ae = (IndexExp *)(e1); | |
| 6138 Type *tb1 = ae->e1->type->toBasetype(); | |
| 6139 if (tb1->ty == Taarray) | |
| 6140 break; | |
| 6141 } | |
| 6142 error("cannot delete type %s", e1->type->toChars()); | |
| 6143 break; | |
| 6144 } | |
| 6145 | |
| 6146 if (e1->op == TOKindex) | |
| 6147 { | |
| 6148 IndexExp *ae = (IndexExp *)(e1); | |
| 6149 Type *tb1 = ae->e1->type->toBasetype(); | |
| 6150 if (tb1->ty == Taarray) | |
| 6151 { if (!global.params.useDeprecated) | |
| 6152 error("delete aa[key] deprecated, use aa.remove(key)"); | |
| 6153 } | |
| 6154 } | |
| 6155 | |
| 6156 return this; | |
| 6157 } | |
| 6158 | |
| 6159 int DeleteExp::checkSideEffect(int flag) | |
| 6160 { | |
| 6161 return 1; | |
| 6162 } | |
| 6163 | |
| 6164 Expression *DeleteExp::checkToBoolean() | |
| 6165 { | |
| 6166 error("delete does not give a boolean result"); | |
| 6167 return this; | |
| 6168 } | |
| 6169 | |
| 6170 void DeleteExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6171 { | |
| 6172 buf->writestring("delete "); | |
| 6173 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 6174 } | |
| 6175 | |
| 6176 /************************************************************/ | |
| 6177 | |
| 6178 CastExp::CastExp(Loc loc, Expression *e, Type *t) | |
| 6179 : UnaExp(loc, TOKcast, sizeof(CastExp), e) | |
| 6180 { | |
| 6181 to = t; | |
| 6182 } | |
| 6183 | |
| 6184 Expression *CastExp::syntaxCopy() | |
| 6185 { | |
| 6186 return new CastExp(loc, e1->syntaxCopy(), to->syntaxCopy()); | |
| 6187 } | |
| 6188 | |
| 6189 | |
| 6190 Expression *CastExp::semantic(Scope *sc) | |
| 6191 { Expression *e; | |
| 6192 BinExp *b; | |
| 6193 UnaExp *u; | |
| 6194 | |
| 6195 #if LOGSEMANTIC | |
| 6196 printf("CastExp::semantic('%s')\n", toChars()); | |
| 6197 #endif | |
| 6198 | |
| 6199 //static int x; assert(++x < 10); | |
| 6200 | |
| 6201 if (type) | |
| 6202 return this; | |
| 6203 UnaExp::semantic(sc); | |
| 6204 if (e1->type) // if not a tuple | |
| 6205 { | |
| 6206 e1 = resolveProperties(sc, e1); | |
| 6207 to = to->semantic(loc, sc); | |
| 6208 | |
| 6209 e = op_overload(sc); | |
| 6210 if (e) | |
| 6211 { | |
| 6212 return e->implicitCastTo(sc, to); | |
| 6213 } | |
| 6214 | |
| 6215 Type *tob = to->toBasetype(); | |
| 6216 if (tob->ty == Tstruct && !tob->equals(e1->type->toBasetype())) | |
| 6217 { | |
| 6218 /* Look to replace: | |
| 6219 * cast(S)t | |
| 6220 * with: | |
| 6221 * S(t) | |
| 6222 */ | |
| 6223 | |
| 6224 // Rewrite as to.call(e1) | |
| 6225 e = new TypeExp(loc, to); | |
| 6226 e = new DotIdExp(loc, e, Id::call); | |
| 6227 e = new CallExp(loc, e, e1); | |
| 6228 e = e->semantic(sc); | |
| 6229 return e; | |
| 6230 } | |
| 6231 } | |
| 6232 e = e1->castTo(sc, to); | |
| 6233 return e; | |
| 6234 } | |
| 6235 | |
| 6236 int CastExp::checkSideEffect(int flag) | |
| 6237 { | |
| 6238 /* if not: | |
| 6239 * cast(void) | |
| 6240 * cast(classtype)func() | |
| 6241 */ | |
| 6242 if (!to->equals(Type::tvoid) && | |
| 6243 !(to->ty == Tclass && e1->op == TOKcall && e1->type->ty == Tclass)) | |
| 6244 return Expression::checkSideEffect(flag); | |
| 6245 return 1; | |
| 6246 } | |
| 6247 | |
| 6248 void CastExp::checkEscape() | |
| 6249 { Type *tb = type->toBasetype(); | |
| 6250 if (tb->ty == Tarray && e1->op == TOKvar && | |
| 6251 e1->type->toBasetype()->ty == Tsarray) | |
| 6252 { VarExp *ve = (VarExp *)e1; | |
| 6253 VarDeclaration *v = ve->var->isVarDeclaration(); | |
| 6254 if (v) | |
| 6255 { | |
| 6256 if (!v->isDataseg() && !v->isParameter()) | |
| 6257 error("escaping reference to local %s", v->toChars()); | |
| 6258 } | |
| 6259 } | |
| 6260 } | |
| 6261 | |
| 6262 void CastExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6263 { | |
| 6264 buf->writestring("cast("); | |
| 6265 to->toCBuffer(buf, NULL, hgs); | |
| 6266 buf->writeByte(')'); | |
| 6267 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 6268 } | |
| 6269 | |
| 6270 | |
| 6271 /************************************************************/ | |
| 6272 | |
| 6273 SliceExp::SliceExp(Loc loc, Expression *e1, Expression *lwr, Expression *upr) | |
| 6274 : UnaExp(loc, TOKslice, sizeof(SliceExp), e1) | |
| 6275 { | |
| 6276 this->upr = upr; | |
| 6277 this->lwr = lwr; | |
| 6278 lengthVar = NULL; | |
| 6279 } | |
| 6280 | |
| 6281 Expression *SliceExp::syntaxCopy() | |
| 6282 { | |
| 6283 Expression *lwr = NULL; | |
| 6284 if (this->lwr) | |
| 6285 lwr = this->lwr->syntaxCopy(); | |
| 6286 | |
| 6287 Expression *upr = NULL; | |
| 6288 if (this->upr) | |
| 6289 upr = this->upr->syntaxCopy(); | |
| 6290 | |
| 6291 return new SliceExp(loc, e1->syntaxCopy(), lwr, upr); | |
| 6292 } | |
| 6293 | |
| 6294 Expression *SliceExp::semantic(Scope *sc) | |
| 6295 { Expression *e; | |
| 6296 AggregateDeclaration *ad; | |
| 6297 //FuncDeclaration *fd; | |
| 6298 ScopeDsymbol *sym; | |
| 6299 | |
| 6300 #if LOGSEMANTIC | |
| 6301 printf("SliceExp::semantic('%s')\n", toChars()); | |
| 6302 #endif | |
| 6303 if (type) | |
| 6304 return this; | |
| 6305 | |
| 6306 UnaExp::semantic(sc); | |
| 6307 e1 = resolveProperties(sc, e1); | |
| 6308 | |
| 6309 e = this; | |
| 6310 | |
| 6311 Type *t = e1->type->toBasetype(); | |
| 6312 if (t->ty == Tpointer) | |
| 6313 { | |
| 6314 if (!lwr || !upr) | |
| 6315 error("need upper and lower bound to slice pointer"); | |
| 6316 } | |
| 6317 else if (t->ty == Tarray) | |
| 6318 { | |
| 6319 } | |
| 6320 else if (t->ty == Tsarray) | |
| 6321 { | |
| 6322 } | |
| 6323 else if (t->ty == Tclass) | |
| 6324 { | |
| 6325 ad = ((TypeClass *)t)->sym; | |
| 6326 goto L1; | |
| 6327 } | |
| 6328 else if (t->ty == Tstruct) | |
| 6329 { | |
| 6330 ad = ((TypeStruct *)t)->sym; | |
| 6331 | |
| 6332 L1: | |
| 6333 if (search_function(ad, Id::slice)) | |
| 6334 { | |
| 6335 // Rewrite as e1.slice(lwr, upr) | |
| 6336 e = new DotIdExp(loc, e1, Id::slice); | |
| 6337 | |
| 6338 if (lwr) | |
| 6339 { | |
| 6340 assert(upr); | |
| 6341 e = new CallExp(loc, e, lwr, upr); | |
| 6342 } | |
| 6343 else | |
| 6344 { assert(!upr); | |
| 6345 e = new CallExp(loc, e); | |
| 6346 } | |
| 6347 e = e->semantic(sc); | |
| 6348 return e; | |
| 6349 } | |
| 6350 goto Lerror; | |
| 6351 } | |
| 6352 else if (t->ty == Ttuple) | |
| 6353 { | |
| 6354 if (!lwr && !upr) | |
| 6355 return e1; | |
| 6356 if (!lwr || !upr) | |
| 6357 { error("need upper and lower bound to slice tuple"); | |
| 6358 goto Lerror; | |
| 6359 } | |
| 6360 } | |
| 6361 else | |
| 6362 goto Lerror; | |
| 6363 | |
| 6364 if (t->ty == Tsarray || t->ty == Tarray || t->ty == Ttuple) | |
| 6365 { | |
| 6366 sym = new ArrayScopeSymbol(this); | |
| 6367 sym->loc = loc; | |
| 6368 sym->parent = sc->scopesym; | |
| 6369 sc = sc->push(sym); | |
| 6370 } | |
| 6371 | |
| 6372 if (lwr) | |
| 6373 { lwr = lwr->semantic(sc); | |
| 6374 lwr = resolveProperties(sc, lwr); | |
| 6375 lwr = lwr->implicitCastTo(sc, Type::tsize_t); | |
| 6376 } | |
| 6377 if (upr) | |
| 6378 { upr = upr->semantic(sc); | |
| 6379 upr = resolveProperties(sc, upr); | |
| 6380 upr = upr->implicitCastTo(sc, Type::tsize_t); | |
| 6381 } | |
| 6382 | |
| 6383 if (t->ty == Tsarray || t->ty == Tarray || t->ty == Ttuple) | |
| 6384 sc->pop(); | |
| 6385 | |
| 6386 if (t->ty == Ttuple) | |
| 6387 { | |
| 6388 lwr = lwr->optimize(WANTvalue); | |
| 6389 upr = upr->optimize(WANTvalue); | |
| 6390 uinteger_t i1 = lwr->toUInteger(); | |
| 6391 uinteger_t i2 = upr->toUInteger(); | |
| 6392 | |
| 6393 size_t length; | |
| 6394 TupleExp *te; | |
| 6395 TypeTuple *tup; | |
| 6396 | |
| 6397 if (e1->op == TOKtuple) // slicing an expression tuple | |
| 6398 { te = (TupleExp *)e1; | |
| 6399 length = te->exps->dim; | |
| 6400 } | |
| 6401 else if (e1->op == TOKtype) // slicing a type tuple | |
| 6402 { tup = (TypeTuple *)t; | |
| 6403 length = Argument::dim(tup->arguments); | |
| 6404 } | |
| 6405 else | |
| 6406 assert(0); | |
| 6407 | |
| 6408 if (i1 <= i2 && i2 <= length) | |
| 6409 { size_t j1 = (size_t) i1; | |
| 6410 size_t j2 = (size_t) i2; | |
| 6411 | |
| 6412 if (e1->op == TOKtuple) | |
| 6413 { Expressions *exps = new Expressions; | |
| 6414 exps->setDim(j2 - j1); | |
| 6415 for (size_t i = 0; i < j2 - j1; i++) | |
| 6416 { Expression *e = (Expression *)te->exps->data[j1 + i]; | |
| 6417 exps->data[i] = (void *)e; | |
| 6418 } | |
| 6419 e = new TupleExp(loc, exps); | |
| 6420 } | |
| 6421 else | |
| 6422 { Arguments *args = new Arguments; | |
| 6423 args->reserve(j2 - j1); | |
| 6424 for (size_t i = j1; i < j2; i++) | |
| 6425 { Argument *arg = Argument::getNth(tup->arguments, i); | |
| 6426 args->push(arg); | |
| 6427 } | |
| 6428 e = new TypeExp(e1->loc, new TypeTuple(args)); | |
| 6429 } | |
| 6430 e = e->semantic(sc); | |
| 6431 } | |
| 6432 else | |
| 6433 { | |
| 6434 error("string slice [%ju .. %ju] is out of bounds", i1, i2); | |
| 6435 e = e1; | |
| 6436 } | |
| 6437 return e; | |
| 6438 } | |
| 6439 | |
| 6440 type = t->next->arrayOf(); | |
| 6441 return e; | |
| 6442 | |
| 6443 Lerror: | |
| 6444 char *s; | |
| 6445 if (t->ty == Tvoid) | |
| 6446 s = e1->toChars(); | |
| 6447 else | |
| 6448 s = t->toChars(); | |
| 6449 error("%s cannot be sliced with []", s); | |
| 6450 type = Type::terror; | |
| 6451 return e; | |
| 6452 } | |
| 6453 | |
| 6454 void SliceExp::checkEscape() | |
| 6455 { | |
| 6456 e1->checkEscape(); | |
| 6457 } | |
| 6458 | |
| 6459 Expression *SliceExp::toLvalue(Scope *sc, Expression *e) | |
| 6460 { | |
| 6461 return this; | |
| 6462 } | |
| 6463 | |
| 6464 Expression *SliceExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 6465 { | |
| 6466 error("slice expression %s is not a modifiable lvalue", toChars()); | |
| 6467 return this; | |
| 6468 } | |
| 6469 | |
| 6470 void SliceExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6471 { | |
| 6472 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 6473 buf->writeByte('['); | |
| 6474 if (upr || lwr) | |
| 6475 { | |
| 6476 if (lwr) | |
| 6477 expToCBuffer(buf, hgs, lwr, PREC_assign); | |
| 6478 else | |
| 6479 buf->writeByte('0'); | |
| 6480 buf->writestring(".."); | |
| 6481 if (upr) | |
| 6482 expToCBuffer(buf, hgs, upr, PREC_assign); | |
| 6483 else | |
| 6484 buf->writestring("length"); // BUG: should be array.length | |
| 6485 } | |
| 6486 buf->writeByte(']'); | |
| 6487 } | |
| 6488 | |
| 6489 /********************** ArrayLength **************************************/ | |
| 6490 | |
| 6491 ArrayLengthExp::ArrayLengthExp(Loc loc, Expression *e1) | |
| 6492 : UnaExp(loc, TOKarraylength, sizeof(ArrayLengthExp), e1) | |
| 6493 { | |
| 6494 } | |
| 6495 | |
| 6496 Expression *ArrayLengthExp::semantic(Scope *sc) | |
| 6497 { Expression *e; | |
| 6498 | |
| 6499 #if LOGSEMANTIC | |
| 6500 printf("ArrayLengthExp::semantic('%s')\n", toChars()); | |
| 6501 #endif | |
| 6502 if (!type) | |
| 6503 { | |
| 6504 UnaExp::semantic(sc); | |
| 6505 e1 = resolveProperties(sc, e1); | |
| 6506 | |
| 6507 type = Type::tsize_t; | |
| 6508 } | |
| 6509 return this; | |
| 6510 } | |
| 6511 | |
| 6512 void ArrayLengthExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6513 { | |
| 6514 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 6515 buf->writestring(".length"); | |
| 6516 } | |
| 6517 | |
| 6518 /*********************** ArrayExp *************************************/ | |
| 6519 | |
| 6520 // e1 [ i1, i2, i3, ... ] | |
| 6521 | |
| 6522 ArrayExp::ArrayExp(Loc loc, Expression *e1, Expressions *args) | |
| 6523 : UnaExp(loc, TOKarray, sizeof(ArrayExp), e1) | |
| 6524 { | |
| 6525 arguments = args; | |
| 6526 } | |
| 6527 | |
| 6528 Expression *ArrayExp::syntaxCopy() | |
| 6529 { | |
| 6530 return new ArrayExp(loc, e1->syntaxCopy(), arraySyntaxCopy(arguments)); | |
| 6531 } | |
| 6532 | |
| 6533 Expression *ArrayExp::semantic(Scope *sc) | |
| 6534 { Expression *e; | |
| 6535 Type *t1; | |
| 6536 | |
| 6537 #if LOGSEMANTIC | |
| 6538 printf("ArrayExp::semantic('%s')\n", toChars()); | |
| 6539 #endif | |
| 6540 UnaExp::semantic(sc); | |
| 6541 e1 = resolveProperties(sc, e1); | |
| 6542 | |
| 6543 t1 = e1->type->toBasetype(); | |
| 6544 if (t1->ty != Tclass && t1->ty != Tstruct) | |
| 6545 { // Convert to IndexExp | |
| 6546 if (arguments->dim != 1) | |
| 6547 error("only one index allowed to index %s", t1->toChars()); | |
| 6548 e = new IndexExp(loc, e1, (Expression *)arguments->data[0]); | |
| 6549 return e->semantic(sc); | |
| 6550 } | |
| 6551 | |
| 6552 // Run semantic() on each argument | |
| 6553 for (size_t i = 0; i < arguments->dim; i++) | |
| 6554 { e = (Expression *)arguments->data[i]; | |
| 6555 | |
| 6556 e = e->semantic(sc); | |
| 6557 if (!e->type) | |
| 6558 error("%s has no value", e->toChars()); | |
| 6559 arguments->data[i] = (void *)e; | |
| 6560 } | |
| 6561 | |
| 6562 expandTuples(arguments); | |
| 6563 assert(arguments && arguments->dim); | |
| 6564 | |
| 6565 e = op_overload(sc); | |
| 6566 if (!e) | |
| 6567 { error("no [] operator overload for type %s", e1->type->toChars()); | |
| 6568 e = e1; | |
| 6569 } | |
| 6570 return e; | |
| 6571 } | |
| 6572 | |
| 6573 | |
| 6574 Expression *ArrayExp::toLvalue(Scope *sc, Expression *e) | |
| 6575 { | |
| 6576 if (type && type->toBasetype()->ty == Tvoid) | |
| 6577 error("voids have no value"); | |
| 6578 return this; | |
| 6579 } | |
| 6580 | |
| 6581 | |
| 6582 void ArrayExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6583 { int i; | |
| 6584 | |
| 6585 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 6586 buf->writeByte('['); | |
| 6587 argsToCBuffer(buf, arguments, hgs); | |
| 6588 buf->writeByte(']'); | |
| 6589 } | |
| 6590 | |
| 6591 /************************* DotExp ***********************************/ | |
| 6592 | |
| 6593 DotExp::DotExp(Loc loc, Expression *e1, Expression *e2) | |
| 6594 : BinExp(loc, TOKdotexp, sizeof(DotExp), e1, e2) | |
| 6595 { | |
| 6596 } | |
| 6597 | |
| 6598 Expression *DotExp::semantic(Scope *sc) | |
| 6599 { | |
| 6600 #if LOGSEMANTIC | |
| 6601 printf("DotExp::semantic('%s')\n", toChars()); | |
| 6602 if (type) printf("\ttype = %s\n", type->toChars()); | |
| 6603 #endif | |
| 6604 e1 = e1->semantic(sc); | |
| 6605 e2 = e2->semantic(sc); | |
| 6606 if (e2->op == TOKimport) | |
| 6607 { | |
| 6608 ScopeExp *se = (ScopeExp *)e2; | |
| 6609 TemplateDeclaration *td = se->sds->isTemplateDeclaration(); | |
| 6610 if (td) | |
| 6611 { Expression *e = new DotTemplateExp(loc, e1, td); | |
| 6612 e = e->semantic(sc); | |
| 6613 return e; | |
| 6614 } | |
| 6615 } | |
| 6616 if (!type) | |
| 6617 type = e2->type; | |
| 6618 return this; | |
| 6619 } | |
| 6620 | |
| 6621 | |
| 6622 /************************* CommaExp ***********************************/ | |
| 6623 | |
| 6624 CommaExp::CommaExp(Loc loc, Expression *e1, Expression *e2) | |
| 6625 : BinExp(loc, TOKcomma, sizeof(CommaExp), e1, e2) | |
| 6626 { | |
| 6627 } | |
| 6628 | |
| 6629 Expression *CommaExp::semantic(Scope *sc) | |
| 6630 { | |
| 6631 if (!type) | |
| 6632 { BinExp::semanticp(sc); | |
| 6633 type = e2->type; | |
| 6634 } | |
| 6635 return this; | |
| 6636 } | |
| 6637 | |
| 6638 void CommaExp::checkEscape() | |
| 6639 { | |
| 6640 e2->checkEscape(); | |
| 6641 } | |
| 6642 | |
| 6643 Expression *CommaExp::toLvalue(Scope *sc, Expression *e) | |
| 6644 { | |
| 6645 e2 = e2->toLvalue(sc, NULL); | |
| 6646 return this; | |
| 6647 } | |
| 6648 | |
| 6649 Expression *CommaExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 6650 { | |
| 6651 e2 = e2->modifiableLvalue(sc, e); | |
| 6652 return this; | |
| 6653 } | |
| 6654 | |
| 6655 int CommaExp::isBool(int result) | |
| 6656 { | |
| 6657 return e2->isBool(result); | |
| 6658 } | |
| 6659 | |
| 6660 int CommaExp::checkSideEffect(int flag) | |
| 6661 { | |
| 6662 if (flag == 2) | |
| 6663 return e1->checkSideEffect(2) || e2->checkSideEffect(2); | |
| 6664 else | |
| 6665 { | |
| 6666 // Don't check e1 until we cast(void) the a,b code generation | |
| 6667 return e2->checkSideEffect(flag); | |
| 6668 } | |
| 6669 } | |
| 6670 | |
| 6671 /************************** IndexExp **********************************/ | |
| 6672 | |
| 6673 // e1 [ e2 ] | |
| 6674 | |
| 6675 IndexExp::IndexExp(Loc loc, Expression *e1, Expression *e2) | |
| 6676 : BinExp(loc, TOKindex, sizeof(IndexExp), e1, e2) | |
| 6677 { | |
| 6678 //printf("IndexExp::IndexExp('%s')\n", toChars()); | |
| 6679 lengthVar = NULL; | |
| 6680 modifiable = 0; // assume it is an rvalue | |
| 6681 } | |
| 6682 | |
| 6683 Expression *IndexExp::semantic(Scope *sc) | |
| 6684 { Expression *e; | |
| 6685 BinExp *b; | |
| 6686 UnaExp *u; | |
| 6687 Type *t1; | |
| 6688 ScopeDsymbol *sym; | |
| 6689 | |
| 6690 #if LOGSEMANTIC | |
| 6691 printf("IndexExp::semantic('%s')\n", toChars()); | |
| 6692 #endif | |
| 6693 if (type) | |
| 6694 return this; | |
| 6695 if (!e1->type) | |
| 6696 e1 = e1->semantic(sc); | |
| 6697 assert(e1->type); // semantic() should already be run on it | |
| 6698 e = this; | |
| 6699 | |
| 6700 // Note that unlike C we do not implement the int[ptr] | |
| 6701 | |
| 6702 t1 = e1->type->toBasetype(); | |
| 6703 | |
| 6704 if (t1->ty == Tsarray || t1->ty == Tarray || t1->ty == Ttuple) | |
| 6705 { // Create scope for 'length' variable | |
| 6706 sym = new ArrayScopeSymbol(this); | |
| 6707 sym->loc = loc; | |
| 6708 sym->parent = sc->scopesym; | |
| 6709 sc = sc->push(sym); | |
| 6710 } | |
| 6711 | |
| 6712 e2 = e2->semantic(sc); | |
| 6713 if (!e2->type) | |
| 6714 { | |
| 6715 error("%s has no value", e2->toChars()); | |
| 6716 e2->type = Type::terror; | |
| 6717 } | |
| 6718 e2 = resolveProperties(sc, e2); | |
| 6719 | |
| 6720 if (t1->ty == Tsarray || t1->ty == Tarray || t1->ty == Ttuple) | |
| 6721 sc = sc->pop(); | |
| 6722 | |
| 6723 switch (t1->ty) | |
| 6724 { | |
| 6725 case Tpointer: | |
| 6726 case Tarray: | |
| 6727 e2 = e2->implicitCastTo(sc, Type::tsize_t); | |
| 6728 e->type = t1->next; | |
| 6729 break; | |
| 6730 | |
| 6731 case Tsarray: | |
| 6732 { | |
| 6733 e2 = e2->implicitCastTo(sc, Type::tsize_t); | |
| 6734 | |
| 6735 TypeSArray *tsa = (TypeSArray *)t1; | |
| 6736 | |
| 6737 #if 0 // Don't do now, because it might be short-circuit evaluated | |
| 6738 // Do compile time array bounds checking if possible | |
| 6739 e2 = e2->optimize(WANTvalue); | |
| 6740 if (e2->op == TOKint64) | |
| 6741 { | |
| 6742 integer_t index = e2->toInteger(); | |
| 6743 integer_t length = tsa->dim->toInteger(); | |
| 6744 if (index < 0 || index >= length) | |
| 6745 error("array index [%lld] is outside array bounds [0 .. %lld]", | |
| 6746 index, length); | |
| 6747 } | |
| 6748 #endif | |
| 6749 e->type = t1->next; | |
| 6750 break; | |
| 6751 } | |
| 6752 | |
| 6753 case Taarray: | |
| 6754 { TypeAArray *taa = (TypeAArray *)t1; | |
| 6755 | |
| 6756 e2 = e2->implicitCastTo(sc, taa->index); // type checking | |
| 6757 e2 = e2->implicitCastTo(sc, taa->key); // actual argument type | |
| 6758 type = taa->next; | |
| 6759 break; | |
| 6760 } | |
| 6761 | |
| 6762 case Ttuple: | |
| 6763 { | |
| 6764 e2 = e2->implicitCastTo(sc, Type::tsize_t); | |
| 6765 e2 = e2->optimize(WANTvalue); | |
| 6766 uinteger_t index = e2->toUInteger(); | |
| 6767 size_t length; | |
| 6768 TupleExp *te; | |
| 6769 TypeTuple *tup; | |
| 6770 | |
| 6771 if (e1->op == TOKtuple) | |
| 6772 { te = (TupleExp *)e1; | |
| 6773 length = te->exps->dim; | |
| 6774 } | |
| 6775 else if (e1->op == TOKtype) | |
| 6776 { | |
| 6777 tup = (TypeTuple *)t1; | |
| 6778 length = Argument::dim(tup->arguments); | |
| 6779 } | |
| 6780 else | |
| 6781 assert(0); | |
| 6782 | |
| 6783 if (index < length) | |
| 6784 { | |
| 6785 | |
| 6786 if (e1->op == TOKtuple) | |
| 6787 e = (Expression *)te->exps->data[(size_t)index]; | |
| 6788 else | |
| 6789 e = new TypeExp(e1->loc, Argument::getNth(tup->arguments, (size_t)index)->type); | |
| 6790 } | |
| 6791 else | |
| 6792 { | |
| 6793 error("array index [%ju] is outside array bounds [0 .. %zu]", | |
| 6794 index, length); | |
| 6795 e = e1; | |
| 6796 } | |
| 6797 break; | |
| 6798 } | |
| 6799 | |
| 6800 default: | |
| 6801 error("%s must be an array or pointer type, not %s", | |
| 6802 e1->toChars(), e1->type->toChars()); | |
| 6803 type = Type::tint32; | |
| 6804 break; | |
| 6805 } | |
| 6806 return e; | |
| 6807 } | |
| 6808 | |
| 6809 Expression *IndexExp::toLvalue(Scope *sc, Expression *e) | |
| 6810 { | |
| 6811 // if (type && type->toBasetype()->ty == Tvoid) | |
| 6812 // error("voids have no value"); | |
| 6813 return this; | |
| 6814 } | |
| 6815 | |
| 6816 Expression *IndexExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 6817 { | |
| 6818 //printf("IndexExp::modifiableLvalue(%s)\n", toChars()); | |
| 6819 modifiable = 1; | |
| 6820 if (e1->op == TOKstring) | |
| 6821 error("string literals are immutable"); | |
| 6822 if (e1->type->toBasetype()->ty == Taarray) | |
| 6823 e1 = e1->modifiableLvalue(sc, e1); | |
| 6824 return toLvalue(sc, e); | |
| 6825 } | |
| 6826 | |
| 6827 void IndexExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6828 { | |
| 6829 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 6830 buf->writeByte('['); | |
| 6831 expToCBuffer(buf, hgs, e2, PREC_assign); | |
| 6832 buf->writeByte(']'); | |
| 6833 } | |
| 6834 | |
| 6835 | |
| 6836 /************************* PostExp ***********************************/ | |
| 6837 | |
| 6838 PostExp::PostExp(enum TOK op, Loc loc, Expression *e) | |
| 6839 : BinExp(loc, op, sizeof(PostExp), e, | |
| 6840 new IntegerExp(loc, 1, Type::tint32)) | |
| 6841 { | |
| 6842 } | |
| 6843 | |
| 6844 Expression *PostExp::semantic(Scope *sc) | |
| 6845 { Expression *e = this; | |
| 6846 | |
| 6847 if (!type) | |
| 6848 { | |
| 6849 BinExp::semantic(sc); | |
| 6850 e2 = resolveProperties(sc, e2); | |
| 6851 | |
| 6852 e = op_overload(sc); | |
| 6853 if (e) | |
| 6854 return e; | |
| 6855 | |
| 6856 e = this; | |
| 6857 e1 = e1->modifiableLvalue(sc, NULL); | |
| 6858 e1->checkScalar(); | |
| 6859 e1->checkNoBool(); | |
| 6860 if (e1->type->ty == Tpointer) | |
| 6861 e = scaleFactor(sc); | |
| 6862 else | |
| 6863 e2 = e2->castTo(sc, e1->type); | |
| 6864 e->type = e1->type; | |
| 6865 } | |
| 6866 return e; | |
| 6867 } | |
| 6868 | |
| 6869 void PostExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6870 { | |
| 6871 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 6872 buf->writestring((op == TOKplusplus) ? (char *)"++" : (char *)"--"); | |
| 6873 } | |
| 6874 | |
| 6875 /************************************************************/ | |
| 6876 | |
| 6877 /* Can be TOKconstruct too */ | |
| 6878 | |
| 6879 AssignExp::AssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 6880 : BinExp(loc, TOKassign, sizeof(AssignExp), e1, e2) | |
| 6881 { | |
| 6882 ismemset = 0; | |
| 6883 } | |
| 6884 | |
| 6885 Expression *AssignExp::semantic(Scope *sc) | |
| 6886 { Type *t1; | |
| 6887 Expression *e1old = e1; | |
| 6888 | |
| 6889 #if LOGSEMANTIC | |
| 6890 printf("AssignExp::semantic('%s')\n", toChars()); | |
| 6891 #endif | |
| 6892 //printf("e1->op = %d, '%s'\n", e1->op, Token::toChars(e1->op)); | |
| 6893 | |
| 6894 /* Look for operator overloading of a[i]=value. | |
| 6895 * Do it before semantic() otherwise the a[i] will have been | |
| 6896 * converted to a.opIndex() already. | |
| 6897 */ | |
| 6898 if (e1->op == TOKarray) | |
| 6899 { Type *t1; | |
| 6900 ArrayExp *ae = (ArrayExp *)e1; | |
| 6901 AggregateDeclaration *ad; | |
| 6902 Identifier *id = Id::index; | |
| 6903 | |
| 6904 ae->e1 = ae->e1->semantic(sc); | |
| 6905 t1 = ae->e1->type->toBasetype(); | |
| 6906 if (t1->ty == Tstruct) | |
| 6907 { | |
| 6908 ad = ((TypeStruct *)t1)->sym; | |
| 6909 goto L1; | |
| 6910 } | |
| 6911 else if (t1->ty == Tclass) | |
| 6912 { | |
| 6913 ad = ((TypeClass *)t1)->sym; | |
| 6914 L1: | |
| 6915 // Rewrite (a[i] = value) to (a.opIndexAssign(value, i)) | |
| 6916 if (search_function(ad, Id::indexass)) | |
| 6917 { Expression *e = new DotIdExp(loc, ae->e1, Id::indexass); | |
| 6918 Expressions *a = (Expressions *)ae->arguments->copy(); | |
| 6919 | |
| 6920 a->insert(0, e2); | |
| 6921 e = new CallExp(loc, e, a); | |
| 6922 e = e->semantic(sc); | |
| 6923 return e; | |
| 6924 } | |
| 6925 else | |
| 6926 { | |
| 6927 // Rewrite (a[i] = value) to (a.opIndex(i, value)) | |
| 6928 if (search_function(ad, id)) | |
| 6929 { Expression *e = new DotIdExp(loc, ae->e1, id); | |
| 6930 | |
| 6931 if (1 || !global.params.useDeprecated) | |
| 6932 error("operator [] assignment overload with opIndex(i, value) illegal, use opIndexAssign(value, i)"); | |
| 6933 | |
| 6934 e = new CallExp(loc, e, (Expression *)ae->arguments->data[0], e2); | |
| 6935 e = e->semantic(sc); | |
| 6936 return e; | |
| 6937 } | |
| 6938 } | |
| 6939 } | |
| 6940 } | |
| 6941 /* Look for operator overloading of a[i..j]=value. | |
| 6942 * Do it before semantic() otherwise the a[i..j] will have been | |
| 6943 * converted to a.opSlice() already. | |
| 6944 */ | |
| 6945 if (e1->op == TOKslice) | |
| 6946 { Type *t1; | |
| 6947 SliceExp *ae = (SliceExp *)e1; | |
| 6948 AggregateDeclaration *ad; | |
| 6949 Identifier *id = Id::index; | |
| 6950 | |
| 6951 ae->e1 = ae->e1->semantic(sc); | |
| 6952 ae->e1 = resolveProperties(sc, ae->e1); | |
| 6953 t1 = ae->e1->type->toBasetype(); | |
| 6954 if (t1->ty == Tstruct) | |
| 6955 { | |
| 6956 ad = ((TypeStruct *)t1)->sym; | |
| 6957 goto L2; | |
| 6958 } | |
| 6959 else if (t1->ty == Tclass) | |
| 6960 { | |
| 6961 ad = ((TypeClass *)t1)->sym; | |
| 6962 L2: | |
| 6963 // Rewrite (a[i..j] = value) to (a.opIndexAssign(value, i, j)) | |
| 6964 if (search_function(ad, Id::sliceass)) | |
| 6965 { Expression *e = new DotIdExp(loc, ae->e1, Id::sliceass); | |
| 6966 Expressions *a = new Expressions(); | |
| 6967 | |
| 6968 a->push(e2); | |
| 6969 if (ae->lwr) | |
| 6970 { a->push(ae->lwr); | |
| 6971 assert(ae->upr); | |
| 6972 a->push(ae->upr); | |
| 6973 } | |
| 6974 else | |
| 6975 assert(!ae->upr); | |
| 6976 e = new CallExp(loc, e, a); | |
| 6977 e = e->semantic(sc); | |
| 6978 return e; | |
| 6979 } | |
| 6980 } | |
| 6981 } | |
| 6982 | |
| 6983 BinExp::semantic(sc); | |
| 6984 e2 = resolveProperties(sc, e2); | |
| 6985 assert(e1->type); | |
| 6986 | |
| 6987 t1 = e1->type->toBasetype(); | |
| 6988 | |
| 6989 if (t1->ty == Tfunction) | |
| 6990 { // Rewrite f=value to f(value) | |
| 6991 Expression *e; | |
| 6992 | |
| 6993 e = new CallExp(loc, e1, e2); | |
| 6994 e = e->semantic(sc); | |
| 6995 return e; | |
| 6996 } | |
| 6997 | |
| 6998 /* If it is an assignment from a 'foreign' type, | |
| 6999 * check for operator overloading. | |
| 7000 */ | |
| 7001 if (t1->ty == Tclass || t1->ty == Tstruct) | |
| 7002 { | |
| 7003 if (!e2->type->implicitConvTo(e1->type)) | |
| 7004 { | |
| 7005 Expression *e = op_overload(sc); | |
| 7006 if (e) | |
| 7007 return e; | |
| 7008 } | |
| 7009 } | |
| 7010 | |
| 7011 e2->rvalue(); | |
| 7012 | |
| 7013 if (e1->op == TOKarraylength) | |
| 7014 { | |
| 7015 // e1 is not an lvalue, but we let code generator handle it | |
| 7016 ArrayLengthExp *ale = (ArrayLengthExp *)e1; | |
| 7017 | |
| 7018 ale->e1 = ale->e1->modifiableLvalue(sc, NULL); | |
| 7019 } | |
| 7020 else if (e1->op == TOKslice) | |
| 7021 ; | |
| 7022 else | |
| 7023 { // Try to do a decent error message with the expression | |
| 7024 // before it got constant folded | |
| 7025 e1 = e1->modifiableLvalue(sc, e1old); | |
| 7026 } | |
| 7027 | |
| 7028 if (e1->op == TOKslice && | |
| 7029 t1->next && | |
| 7030 !(t1->next->equals(e2->type->next) /*|| | |
| 7031 (t1->next->ty == Tchar && e2->op == TOKstring)*/) | |
| 7032 ) | |
| 7033 { // memset | |
| 7034 e2 = e2->implicitCastTo(sc, t1->next); | |
| 7035 } | |
| 7036 #if 0 | |
| 7037 else if (e1->op == TOKslice && | |
| 7038 e2->op == TOKstring && | |
| 7039 ((StringExp *)e2)->len == 1) | |
| 7040 { // memset | |
| 7041 e2 = e2->implicitCastTo(sc, e1->type->next); | |
| 7042 } | |
| 7043 #endif | |
| 7044 else if (t1->ty == Tsarray) | |
| 7045 { | |
| 7046 error("cannot assign to static array %s", e1->toChars()); | |
| 7047 } | |
| 7048 else | |
| 7049 { | |
| 7050 e2 = e2->implicitCastTo(sc, e1->type); | |
| 7051 } | |
| 7052 type = e1->type; | |
| 7053 assert(type); | |
| 7054 return this; | |
| 7055 } | |
| 7056 | |
| 7057 Expression *AssignExp::checkToBoolean() | |
| 7058 { | |
| 7059 // Things like: | |
| 7060 // if (a = b) ... | |
| 7061 // are usually mistakes. | |
| 7062 | |
| 7063 error("'=' does not give a boolean result"); | |
| 7064 return this; | |
| 7065 } | |
| 7066 | |
| 7067 /************************************************************/ | |
| 7068 | |
| 7069 AddAssignExp::AddAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7070 : BinExp(loc, TOKaddass, sizeof(AddAssignExp), e1, e2) | |
| 7071 { | |
| 7072 } | |
| 7073 | |
| 7074 Expression *AddAssignExp::semantic(Scope *sc) | |
| 7075 { Expression *e; | |
| 7076 | |
| 7077 if (type) | |
| 7078 return this; | |
| 7079 | |
| 7080 BinExp::semantic(sc); | |
| 7081 e2 = resolveProperties(sc, e2); | |
| 7082 | |
| 7083 e = op_overload(sc); | |
| 7084 if (e) | |
| 7085 return e; | |
| 7086 | |
| 7087 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7088 | |
| 7089 Type *tb1 = e1->type->toBasetype(); | |
| 7090 Type *tb2 = e2->type->toBasetype(); | |
| 7091 | |
| 7092 if ((tb1->ty == Tarray || tb1->ty == Tsarray) && | |
| 7093 (tb2->ty == Tarray || tb2->ty == Tsarray) && | |
| 7094 tb1->next->equals(tb2->next) | |
| 7095 ) | |
| 7096 { | |
| 7097 type = e1->type; | |
| 7098 e = this; | |
| 7099 } | |
| 7100 else | |
| 7101 { | |
| 7102 e1->checkScalar(); | |
| 7103 e1->checkNoBool(); | |
| 7104 if (tb1->ty == Tpointer && tb2->isintegral()) | |
| 7105 e = scaleFactor(sc); | |
| 7106 else if (tb1->ty == Tbit || tb1->ty == Tbool) | |
| 7107 { | |
| 7108 #if 0 | |
| 7109 // Need to rethink this | |
| 7110 if (e1->op != TOKvar) | |
| 7111 { // Rewrite e1+=e2 to (v=&e1),*v=*v+e2 | |
| 7112 VarDeclaration *v; | |
| 7113 Expression *ea; | |
| 7114 Expression *ex; | |
| 7115 | |
| 7116 char name[6+6+1]; | |
| 7117 Identifier *id; | |
| 7118 static int idn; | |
| 7119 sprintf(name, "__name%d", ++idn); | |
| 7120 id = Lexer::idPool(name); | |
| 7121 | |
| 7122 v = new VarDeclaration(loc, tb1->pointerTo(), id, NULL); | |
| 7123 v->semantic(sc); | |
| 7124 if (!sc->insert(v)) | |
| 7125 assert(0); | |
| 7126 v->parent = sc->func; | |
| 7127 | |
| 7128 ea = new AddrExp(loc, e1); | |
| 7129 ea = new AssignExp(loc, new VarExp(loc, v), ea); | |
| 7130 | |
| 7131 ex = new VarExp(loc, v); | |
| 7132 ex = new PtrExp(loc, ex); | |
| 7133 e = new AddExp(loc, ex, e2); | |
| 7134 e = new CastExp(loc, e, e1->type); | |
| 7135 e = new AssignExp(loc, ex->syntaxCopy(), e); | |
| 7136 | |
| 7137 e = new CommaExp(loc, ea, e); | |
| 7138 } | |
| 7139 else | |
| 7140 #endif | |
| 7141 { // Rewrite e1+=e2 to e1=e1+e2 | |
| 7142 // BUG: doesn't account for side effects in e1 | |
| 7143 // BUG: other assignment operators for bits aren't handled at all | |
| 7144 e = new AddExp(loc, e1, e2); | |
| 7145 e = new CastExp(loc, e, e1->type); | |
| 7146 e = new AssignExp(loc, e1->syntaxCopy(), e); | |
| 7147 } | |
| 7148 e = e->semantic(sc); | |
| 7149 } | |
| 7150 else | |
| 7151 { | |
| 7152 type = e1->type; | |
| 7153 typeCombine(sc); | |
| 7154 e1->checkArithmetic(); | |
| 7155 e2->checkArithmetic(); | |
| 7156 if (type->isreal() || type->isimaginary()) | |
| 7157 { | |
| 7158 assert(global.errors || e2->type->isfloating()); | |
| 7159 e2 = e2->castTo(sc, e1->type); | |
| 7160 } | |
| 7161 e = this; | |
| 7162 } | |
| 7163 } | |
| 7164 return e; | |
| 7165 } | |
| 7166 | |
| 7167 /************************************************************/ | |
| 7168 | |
| 7169 MinAssignExp::MinAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7170 : BinExp(loc, TOKminass, sizeof(MinAssignExp), e1, e2) | |
| 7171 { | |
| 7172 } | |
| 7173 | |
| 7174 Expression *MinAssignExp::semantic(Scope *sc) | |
| 7175 { Expression *e; | |
| 7176 | |
| 7177 if (type) | |
| 7178 return this; | |
| 7179 | |
| 7180 BinExp::semantic(sc); | |
| 7181 e2 = resolveProperties(sc, e2); | |
| 7182 | |
| 7183 e = op_overload(sc); | |
| 7184 if (e) | |
| 7185 return e; | |
| 7186 | |
| 7187 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7188 e1->checkScalar(); | |
| 7189 e1->checkNoBool(); | |
| 7190 if (e1->type->ty == Tpointer && e2->type->isintegral()) | |
| 7191 e = scaleFactor(sc); | |
| 7192 else | |
| 7193 { | |
| 7194 type = e1->type; | |
| 7195 typeCombine(sc); | |
| 7196 e1->checkArithmetic(); | |
| 7197 e2->checkArithmetic(); | |
| 7198 if (type->isreal() || type->isimaginary()) | |
| 7199 { | |
| 7200 assert(e2->type->isfloating()); | |
| 7201 e2 = e2->castTo(sc, e1->type); | |
| 7202 } | |
| 7203 e = this; | |
| 7204 } | |
| 7205 return e; | |
| 7206 } | |
| 7207 | |
| 7208 /************************************************************/ | |
| 7209 | |
| 7210 CatAssignExp::CatAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7211 : BinExp(loc, TOKcatass, sizeof(CatAssignExp), e1, e2) | |
| 7212 { | |
| 7213 } | |
| 7214 | |
| 7215 Expression *CatAssignExp::semantic(Scope *sc) | |
| 7216 { Expression *e; | |
| 7217 | |
| 7218 BinExp::semantic(sc); | |
| 7219 e2 = resolveProperties(sc, e2); | |
| 7220 | |
| 7221 e = op_overload(sc); | |
| 7222 if (e) | |
| 7223 return e; | |
| 7224 | |
| 7225 if (e1->op == TOKslice) | |
| 7226 { SliceExp *se = (SliceExp *)e1; | |
| 7227 | |
| 7228 if (se->e1->type->toBasetype()->ty == Tsarray) | |
| 7229 error("cannot append to static array %s", se->e1->type->toChars()); | |
| 7230 } | |
| 7231 | |
| 7232 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7233 | |
| 7234 Type *tb1 = e1->type->toBasetype(); | |
| 7235 Type *tb2 = e2->type->toBasetype(); | |
| 7236 | |
| 7237 if ((tb1->ty == Tarray) && | |
| 7238 (tb2->ty == Tarray || tb2->ty == Tsarray) && | |
| 7239 e2->implicitConvTo(e1->type) | |
| 7240 //e1->type->next->equals(e2->type->next) | |
| 7241 ) | |
| 7242 { // Append array | |
| 7243 e2 = e2->castTo(sc, e1->type); | |
| 7244 type = e1->type; | |
| 7245 e = this; | |
| 7246 } | |
| 7247 else if ((tb1->ty == Tarray) && | |
| 7248 e2->implicitConvTo(tb1->next) | |
| 7249 ) | |
| 7250 { // Append element | |
| 7251 e2 = e2->castTo(sc, tb1->next); | |
| 7252 type = e1->type; | |
| 7253 e = this; | |
| 7254 } | |
| 7255 else | |
| 7256 { | |
| 7257 error("cannot append type %s to type %s", tb2->toChars(), tb1->toChars()); | |
| 7258 type = Type::tint32; | |
| 7259 e = this; | |
| 7260 } | |
| 7261 return e; | |
| 7262 } | |
| 7263 | |
| 7264 /************************************************************/ | |
| 7265 | |
| 7266 MulAssignExp::MulAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7267 : BinExp(loc, TOKmulass, sizeof(MulAssignExp), e1, e2) | |
| 7268 { | |
| 7269 } | |
| 7270 | |
| 7271 Expression *MulAssignExp::semantic(Scope *sc) | |
| 7272 { Expression *e; | |
| 7273 | |
| 7274 BinExp::semantic(sc); | |
| 7275 e2 = resolveProperties(sc, e2); | |
| 7276 | |
| 7277 e = op_overload(sc); | |
| 7278 if (e) | |
| 7279 return e; | |
| 7280 | |
| 7281 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7282 e1->checkScalar(); | |
| 7283 e1->checkNoBool(); | |
| 7284 type = e1->type; | |
| 7285 typeCombine(sc); | |
| 7286 e1->checkArithmetic(); | |
| 7287 e2->checkArithmetic(); | |
| 7288 if (e2->type->isfloating()) | |
| 7289 { Type *t1; | |
| 7290 Type *t2; | |
| 7291 | |
| 7292 t1 = e1->type; | |
| 7293 t2 = e2->type; | |
| 7294 if (t1->isreal()) | |
| 7295 { | |
| 7296 if (t2->isimaginary() || t2->iscomplex()) | |
| 7297 { | |
| 7298 e2 = e2->castTo(sc, t1); | |
| 7299 } | |
| 7300 } | |
| 7301 else if (t1->isimaginary()) | |
| 7302 { | |
| 7303 if (t2->isimaginary() || t2->iscomplex()) | |
| 7304 { | |
| 7305 switch (t1->ty) | |
| 7306 { | |
| 7307 case Timaginary32: t2 = Type::tfloat32; break; | |
| 7308 case Timaginary64: t2 = Type::tfloat64; break; | |
| 7309 case Timaginary80: t2 = Type::tfloat80; break; | |
| 7310 default: | |
| 7311 assert(0); | |
| 7312 } | |
| 7313 e2 = e2->castTo(sc, t2); | |
| 7314 } | |
| 7315 } | |
| 7316 } | |
| 7317 return this; | |
| 7318 } | |
| 7319 | |
| 7320 /************************************************************/ | |
| 7321 | |
| 7322 DivAssignExp::DivAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7323 : BinExp(loc, TOKdivass, sizeof(DivAssignExp), e1, e2) | |
| 7324 { | |
| 7325 } | |
| 7326 | |
| 7327 Expression *DivAssignExp::semantic(Scope *sc) | |
| 7328 { Expression *e; | |
| 7329 | |
| 7330 BinExp::semantic(sc); | |
| 7331 e2 = resolveProperties(sc, e2); | |
| 7332 | |
| 7333 e = op_overload(sc); | |
| 7334 if (e) | |
| 7335 return e; | |
| 7336 | |
| 7337 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7338 e1->checkScalar(); | |
| 7339 e1->checkNoBool(); | |
| 7340 type = e1->type; | |
| 7341 typeCombine(sc); | |
| 7342 e1->checkArithmetic(); | |
| 7343 e2->checkArithmetic(); | |
| 7344 if (e2->type->isimaginary()) | |
| 7345 { Type *t1; | |
| 7346 Type *t2; | |
| 7347 | |
| 7348 t1 = e1->type; | |
| 7349 if (t1->isreal()) | |
| 7350 { // x/iv = i(-x/v) | |
| 7351 // Therefore, the result is 0 | |
| 7352 e2 = new CommaExp(loc, e2, new RealExp(loc, 0, t1)); | |
| 7353 e2->type = t1; | |
| 7354 e = new AssignExp(loc, e1, e2); | |
| 7355 e->type = t1; | |
| 7356 return e; | |
| 7357 } | |
| 7358 else if (t1->isimaginary()) | |
| 7359 { Expression *e; | |
| 7360 | |
| 7361 switch (t1->ty) | |
| 7362 { | |
| 7363 case Timaginary32: t2 = Type::tfloat32; break; | |
| 7364 case Timaginary64: t2 = Type::tfloat64; break; | |
| 7365 case Timaginary80: t2 = Type::tfloat80; break; | |
| 7366 default: | |
| 7367 assert(0); | |
| 7368 } | |
| 7369 e2 = e2->castTo(sc, t2); | |
| 7370 e = new AssignExp(loc, e1, e2); | |
| 7371 e->type = t1; | |
| 7372 return e; | |
| 7373 } | |
| 7374 } | |
| 7375 return this; | |
| 7376 } | |
| 7377 | |
| 7378 /************************************************************/ | |
| 7379 | |
| 7380 ModAssignExp::ModAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7381 : BinExp(loc, TOKmodass, sizeof(ModAssignExp), e1, e2) | |
| 7382 { | |
| 7383 } | |
| 7384 | |
| 7385 Expression *ModAssignExp::semantic(Scope *sc) | |
| 7386 { | |
| 7387 return commonSemanticAssign(sc); | |
| 7388 } | |
| 7389 | |
| 7390 /************************************************************/ | |
| 7391 | |
| 7392 ShlAssignExp::ShlAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7393 : BinExp(loc, TOKshlass, sizeof(ShlAssignExp), e1, e2) | |
| 7394 { | |
| 7395 } | |
| 7396 | |
| 7397 Expression *ShlAssignExp::semantic(Scope *sc) | |
| 7398 { Expression *e; | |
| 7399 | |
| 7400 //printf("ShlAssignExp::semantic()\n"); | |
| 7401 BinExp::semantic(sc); | |
| 7402 e2 = resolveProperties(sc, e2); | |
| 7403 | |
| 7404 e = op_overload(sc); | |
| 7405 if (e) | |
| 7406 return e; | |
| 7407 | |
| 7408 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7409 e1->checkScalar(); | |
| 7410 e1->checkNoBool(); | |
| 7411 type = e1->type; | |
| 7412 typeCombine(sc); | |
| 7413 e1->checkIntegral(); | |
| 7414 e2 = e2->checkIntegral(); | |
| 42 | 7415 //e2 = e2->castTo(sc, Type::tshiftcnt); |
| 7416 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 1 | 7417 return this; |
| 7418 } | |
| 7419 | |
| 7420 /************************************************************/ | |
| 7421 | |
| 7422 ShrAssignExp::ShrAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7423 : BinExp(loc, TOKshrass, sizeof(ShrAssignExp), e1, e2) | |
| 7424 { | |
| 7425 } | |
| 7426 | |
| 7427 Expression *ShrAssignExp::semantic(Scope *sc) | |
| 7428 { Expression *e; | |
| 7429 | |
| 7430 BinExp::semantic(sc); | |
| 7431 e2 = resolveProperties(sc, e2); | |
| 7432 | |
| 7433 e = op_overload(sc); | |
| 7434 if (e) | |
| 7435 return e; | |
| 7436 | |
| 7437 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7438 e1->checkScalar(); | |
| 7439 e1->checkNoBool(); | |
| 7440 type = e1->type; | |
| 7441 typeCombine(sc); | |
| 7442 e1->checkIntegral(); | |
| 7443 e2 = e2->checkIntegral(); | |
| 42 | 7444 //e2 = e2->castTo(sc, Type::tshiftcnt); |
| 7445 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 1 | 7446 return this; |
| 7447 } | |
| 7448 | |
| 7449 /************************************************************/ | |
| 7450 | |
| 7451 UshrAssignExp::UshrAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7452 : BinExp(loc, TOKushrass, sizeof(UshrAssignExp), e1, e2) | |
| 7453 { | |
| 7454 } | |
| 7455 | |
| 7456 Expression *UshrAssignExp::semantic(Scope *sc) | |
| 7457 { Expression *e; | |
| 7458 | |
| 7459 BinExp::semantic(sc); | |
| 7460 e2 = resolveProperties(sc, e2); | |
| 7461 | |
| 7462 e = op_overload(sc); | |
| 7463 if (e) | |
| 7464 return e; | |
| 7465 | |
| 7466 e1 = e1->modifiableLvalue(sc, NULL); | |
| 7467 e1->checkScalar(); | |
| 7468 e1->checkNoBool(); | |
| 7469 type = e1->type; | |
| 7470 typeCombine(sc); | |
| 7471 e1->checkIntegral(); | |
| 7472 e2 = e2->checkIntegral(); | |
| 42 | 7473 //e2 = e2->castTo(sc, Type::tshiftcnt); |
| 7474 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 1 | 7475 return this; |
| 7476 } | |
| 7477 | |
| 7478 /************************************************************/ | |
| 7479 | |
| 7480 AndAssignExp::AndAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7481 : BinExp(loc, TOKandass, sizeof(AndAssignExp), e1, e2) | |
| 7482 { | |
| 7483 } | |
| 7484 | |
| 7485 Expression *AndAssignExp::semantic(Scope *sc) | |
| 7486 { | |
| 7487 return commonSemanticAssignIntegral(sc); | |
| 7488 } | |
| 7489 | |
| 7490 /************************************************************/ | |
| 7491 | |
| 7492 OrAssignExp::OrAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7493 : BinExp(loc, TOKorass, sizeof(OrAssignExp), e1, e2) | |
| 7494 { | |
| 7495 } | |
| 7496 | |
| 7497 Expression *OrAssignExp::semantic(Scope *sc) | |
| 7498 { | |
| 7499 return commonSemanticAssignIntegral(sc); | |
| 7500 } | |
| 7501 | |
| 7502 /************************************************************/ | |
| 7503 | |
| 7504 XorAssignExp::XorAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7505 : BinExp(loc, TOKxorass, sizeof(XorAssignExp), e1, e2) | |
| 7506 { | |
| 7507 } | |
| 7508 | |
| 7509 Expression *XorAssignExp::semantic(Scope *sc) | |
| 7510 { | |
| 7511 return commonSemanticAssignIntegral(sc); | |
| 7512 } | |
| 7513 | |
| 7514 /************************* AddExp *****************************/ | |
| 7515 | |
| 7516 AddExp::AddExp(Loc loc, Expression *e1, Expression *e2) | |
| 7517 : BinExp(loc, TOKadd, sizeof(AddExp), e1, e2) | |
| 7518 { | |
| 7519 } | |
| 7520 | |
| 7521 Expression *AddExp::semantic(Scope *sc) | |
| 7522 { Expression *e; | |
| 7523 | |
| 7524 #if LOGSEMANTIC | |
| 7525 printf("AddExp::semantic('%s')\n", toChars()); | |
| 7526 #endif | |
| 7527 if (!type) | |
| 7528 { | |
| 7529 BinExp::semanticp(sc); | |
| 7530 | |
| 7531 e = op_overload(sc); | |
| 7532 if (e) | |
| 7533 return e; | |
| 7534 | |
| 7535 Type *tb1 = e1->type->toBasetype(); | |
| 7536 Type *tb2 = e2->type->toBasetype(); | |
| 7537 | |
| 7538 if ((tb1->ty == Tarray || tb1->ty == Tsarray) && | |
| 7539 (tb2->ty == Tarray || tb2->ty == Tsarray) && | |
| 7540 tb1->next->equals(tb2->next) | |
| 7541 ) | |
| 7542 { | |
| 7543 type = e1->type; | |
| 7544 e = this; | |
| 7545 } | |
| 7546 else if (tb1->ty == Tpointer && e2->type->isintegral() || | |
| 7547 tb2->ty == Tpointer && e1->type->isintegral()) | |
| 7548 e = scaleFactor(sc); | |
| 7549 else if (tb1->ty == Tpointer && tb2->ty == Tpointer) | |
| 7550 { | |
| 7551 incompatibleTypes(); | |
| 7552 type = e1->type; | |
| 7553 e = this; | |
| 7554 } | |
| 7555 else | |
| 7556 { | |
| 7557 typeCombine(sc); | |
| 7558 if ((e1->type->isreal() && e2->type->isimaginary()) || | |
| 7559 (e1->type->isimaginary() && e2->type->isreal())) | |
| 7560 { | |
| 7561 switch (type->toBasetype()->ty) | |
| 7562 { | |
| 7563 case Tfloat32: | |
| 7564 case Timaginary32: | |
| 7565 type = Type::tcomplex32; | |
| 7566 break; | |
| 7567 | |
| 7568 case Tfloat64: | |
| 7569 case Timaginary64: | |
| 7570 type = Type::tcomplex64; | |
| 7571 break; | |
| 7572 | |
| 7573 case Tfloat80: | |
| 7574 case Timaginary80: | |
| 7575 type = Type::tcomplex80; | |
| 7576 break; | |
| 7577 | |
| 7578 default: | |
| 7579 assert(0); | |
| 7580 } | |
| 7581 } | |
| 7582 e = this; | |
| 7583 } | |
| 7584 return e; | |
| 7585 } | |
| 7586 return this; | |
| 7587 } | |
| 7588 | |
| 7589 /************************************************************/ | |
| 7590 | |
| 7591 MinExp::MinExp(Loc loc, Expression *e1, Expression *e2) | |
| 7592 : BinExp(loc, TOKmin, sizeof(MinExp), e1, e2) | |
| 7593 { | |
| 7594 } | |
| 7595 | |
| 7596 Expression *MinExp::semantic(Scope *sc) | |
| 7597 { Expression *e; | |
| 7598 Type *t1; | |
| 7599 Type *t2; | |
| 7600 | |
| 7601 #if LOGSEMANTIC | |
| 7602 printf("MinExp::semantic('%s')\n", toChars()); | |
| 7603 #endif | |
| 7604 if (type) | |
| 7605 return this; | |
| 7606 | |
| 7607 BinExp::semanticp(sc); | |
| 7608 | |
| 7609 e = op_overload(sc); | |
| 7610 if (e) | |
| 7611 return e; | |
| 7612 | |
| 7613 e = this; | |
| 7614 t1 = e1->type->toBasetype(); | |
| 7615 t2 = e2->type->toBasetype(); | |
| 7616 if (t1->ty == Tpointer) | |
| 7617 { | |
| 7618 if (t2->ty == Tpointer) | |
| 7619 { // Need to divide the result by the stride | |
| 7620 // Replace (ptr - ptr) with (ptr - ptr) / stride | |
| 7621 d_int64 stride; | |
| 7622 Expression *e; | |
| 7623 | |
| 7624 typeCombine(sc); // make sure pointer types are compatible | |
| 7625 type = Type::tptrdiff_t; | |
| 7626 stride = t2->next->size(); | |
| 7627 e = new DivExp(loc, this, new IntegerExp(0, stride, Type::tptrdiff_t)); | |
| 7628 e->type = Type::tptrdiff_t; | |
| 7629 return e; | |
| 7630 } | |
| 7631 else if (t2->isintegral()) | |
| 7632 e = scaleFactor(sc); | |
| 7633 else | |
| 7634 { error("incompatible types for -"); | |
| 7635 return new IntegerExp(0); | |
| 7636 } | |
| 7637 } | |
| 7638 else if (t2->ty == Tpointer) | |
| 7639 { | |
| 7640 type = e2->type; | |
| 7641 error("can't subtract pointer from %s", e1->type->toChars()); | |
| 7642 return new IntegerExp(0); | |
| 7643 } | |
| 7644 else | |
| 7645 { | |
| 7646 typeCombine(sc); | |
| 7647 t1 = e1->type->toBasetype(); | |
| 7648 t2 = e2->type->toBasetype(); | |
| 7649 if ((t1->isreal() && t2->isimaginary()) || | |
| 7650 (t1->isimaginary() && t2->isreal())) | |
| 7651 { | |
| 7652 switch (type->ty) | |
| 7653 { | |
| 7654 case Tfloat32: | |
| 7655 case Timaginary32: | |
| 7656 type = Type::tcomplex32; | |
| 7657 break; | |
| 7658 | |
| 7659 case Tfloat64: | |
| 7660 case Timaginary64: | |
| 7661 type = Type::tcomplex64; | |
| 7662 break; | |
| 7663 | |
| 7664 case Tfloat80: | |
| 7665 case Timaginary80: | |
| 7666 type = Type::tcomplex80; | |
| 7667 break; | |
| 7668 | |
| 7669 default: | |
| 7670 assert(0); | |
| 7671 } | |
| 7672 } | |
| 7673 } | |
| 7674 return e; | |
| 7675 } | |
| 7676 | |
| 7677 /************************* CatExp *****************************/ | |
| 7678 | |
| 7679 CatExp::CatExp(Loc loc, Expression *e1, Expression *e2) | |
| 7680 : BinExp(loc, TOKcat, sizeof(CatExp), e1, e2) | |
| 7681 { | |
| 7682 } | |
| 7683 | |
| 7684 Expression *CatExp::semantic(Scope *sc) | |
| 7685 { Expression *e; | |
| 7686 | |
| 7687 //printf("CatExp::semantic() %s\n", toChars()); | |
| 7688 if (!type) | |
| 7689 { | |
| 7690 BinExp::semanticp(sc); | |
| 7691 e = op_overload(sc); | |
| 7692 if (e) | |
| 7693 return e; | |
| 7694 | |
| 7695 Type *tb1 = e1->type->toBasetype(); | |
| 7696 Type *tb2 = e2->type->toBasetype(); | |
| 7697 | |
| 7698 | |
| 7699 /* BUG: Should handle things like: | |
| 7700 * char c; | |
| 7701 * c ~ ' ' | |
| 7702 * ' ' ~ c; | |
| 7703 */ | |
| 7704 | |
| 7705 #if 0 | |
| 7706 e1->type->print(); | |
| 7707 e2->type->print(); | |
| 7708 #endif | |
| 7709 if ((tb1->ty == Tsarray || tb1->ty == Tarray) && | |
| 7710 e2->type->equals(tb1->next)) | |
| 7711 { | |
| 7712 type = tb1->next->arrayOf(); | |
| 7713 if (tb2->ty == Tarray) | |
| 7714 { // Make e2 into [e2] | |
| 7715 e2 = new ArrayLiteralExp(e2->loc, e2); | |
| 7716 e2->type = type; | |
| 7717 } | |
| 7718 return this; | |
| 7719 } | |
| 7720 else if ((tb2->ty == Tsarray || tb2->ty == Tarray) && | |
| 7721 e1->type->equals(tb2->next)) | |
| 7722 { | |
| 7723 type = tb2->next->arrayOf(); | |
| 7724 if (tb1->ty == Tarray) | |
| 7725 { // Make e1 into [e1] | |
| 7726 e1 = new ArrayLiteralExp(e1->loc, e1); | |
| 7727 e1->type = type; | |
| 7728 } | |
| 7729 return this; | |
| 7730 } | |
| 7731 | |
| 7732 typeCombine(sc); | |
| 7733 | |
| 7734 if (type->toBasetype()->ty == Tsarray) | |
| 7735 type = type->toBasetype()->next->arrayOf(); | |
| 7736 #if 0 | |
| 7737 e1->type->print(); | |
| 7738 e2->type->print(); | |
| 7739 type->print(); | |
| 7740 print(); | |
| 7741 #endif | |
| 7742 if (e1->op == TOKstring && e2->op == TOKstring) | |
| 7743 e = optimize(WANTvalue); | |
| 7744 else if (e1->type->equals(e2->type) && | |
| 7745 (e1->type->toBasetype()->ty == Tarray || | |
| 7746 e1->type->toBasetype()->ty == Tsarray)) | |
| 7747 { | |
| 7748 e = this; | |
| 7749 } | |
| 7750 else | |
| 7751 { | |
| 7752 error("Can only concatenate arrays, not (%s ~ %s)", | |
| 7753 e1->type->toChars(), e2->type->toChars()); | |
| 7754 type = Type::tint32; | |
| 7755 e = this; | |
| 7756 } | |
| 7757 e->type = e->type->semantic(loc, sc); | |
| 7758 return e; | |
| 7759 } | |
| 7760 return this; | |
| 7761 } | |
| 7762 | |
| 7763 /************************************************************/ | |
| 7764 | |
| 7765 MulExp::MulExp(Loc loc, Expression *e1, Expression *e2) | |
| 7766 : BinExp(loc, TOKmul, sizeof(MulExp), e1, e2) | |
| 7767 { | |
| 7768 } | |
| 7769 | |
| 7770 Expression *MulExp::semantic(Scope *sc) | |
| 7771 { Expression *e; | |
| 7772 | |
| 7773 #if 0 | |
| 7774 printf("MulExp::semantic() %s\n", toChars()); | |
| 7775 #endif | |
| 7776 if (type) | |
| 7777 { | |
| 7778 return this; | |
| 7779 } | |
| 7780 | |
| 7781 BinExp::semanticp(sc); | |
| 7782 e = op_overload(sc); | |
| 7783 if (e) | |
| 7784 return e; | |
| 7785 | |
| 7786 typeCombine(sc); | |
| 7787 e1->checkArithmetic(); | |
| 7788 e2->checkArithmetic(); | |
| 7789 if (type->isfloating()) | |
| 7790 { Type *t1 = e1->type; | |
| 7791 Type *t2 = e2->type; | |
| 7792 | |
| 7793 if (t1->isreal()) | |
| 7794 { | |
| 7795 type = t2; | |
| 7796 } | |
| 7797 else if (t2->isreal()) | |
| 7798 { | |
| 7799 type = t1; | |
| 7800 } | |
| 7801 else if (t1->isimaginary()) | |
| 7802 { | |
| 7803 if (t2->isimaginary()) | |
| 7804 { Expression *e; | |
| 7805 | |
| 7806 switch (t1->ty) | |
| 7807 { | |
| 7808 case Timaginary32: type = Type::tfloat32; break; | |
| 7809 case Timaginary64: type = Type::tfloat64; break; | |
| 7810 case Timaginary80: type = Type::tfloat80; break; | |
| 7811 default: assert(0); | |
| 7812 } | |
| 7813 | |
| 7814 // iy * iv = -yv | |
| 7815 e1->type = type; | |
| 7816 e2->type = type; | |
| 7817 e = new NegExp(loc, this); | |
| 7818 e = e->semantic(sc); | |
| 7819 return e; | |
| 7820 } | |
| 7821 else | |
| 7822 type = t2; // t2 is complex | |
| 7823 } | |
| 7824 else if (t2->isimaginary()) | |
| 7825 { | |
| 7826 type = t1; // t1 is complex | |
| 7827 } | |
| 7828 } | |
| 7829 return this; | |
| 7830 } | |
| 7831 | |
| 7832 /************************************************************/ | |
| 7833 | |
| 7834 DivExp::DivExp(Loc loc, Expression *e1, Expression *e2) | |
| 7835 : BinExp(loc, TOKdiv, sizeof(DivExp), e1, e2) | |
| 7836 { | |
| 7837 } | |
| 7838 | |
| 7839 Expression *DivExp::semantic(Scope *sc) | |
| 7840 { Expression *e; | |
| 7841 | |
| 7842 if (type) | |
| 7843 return this; | |
| 7844 | |
| 7845 BinExp::semanticp(sc); | |
| 7846 e = op_overload(sc); | |
| 7847 if (e) | |
| 7848 return e; | |
| 7849 | |
| 7850 typeCombine(sc); | |
| 7851 e1->checkArithmetic(); | |
| 7852 e2->checkArithmetic(); | |
| 7853 if (type->isfloating()) | |
| 7854 { Type *t1 = e1->type; | |
| 7855 Type *t2 = e2->type; | |
| 7856 | |
| 7857 if (t1->isreal()) | |
| 7858 { | |
| 7859 type = t2; | |
| 7860 if (t2->isimaginary()) | |
| 7861 { Expression *e; | |
| 7862 | |
| 7863 // x/iv = i(-x/v) | |
| 7864 e2->type = t1; | |
| 7865 e = new NegExp(loc, this); | |
| 7866 e = e->semantic(sc); | |
| 7867 return e; | |
| 7868 } | |
| 7869 } | |
| 7870 else if (t2->isreal()) | |
| 7871 { | |
| 7872 type = t1; | |
| 7873 } | |
| 7874 else if (t1->isimaginary()) | |
| 7875 { | |
| 7876 if (t2->isimaginary()) | |
| 7877 { | |
| 7878 switch (t1->ty) | |
| 7879 { | |
| 7880 case Timaginary32: type = Type::tfloat32; break; | |
| 7881 case Timaginary64: type = Type::tfloat64; break; | |
| 7882 case Timaginary80: type = Type::tfloat80; break; | |
| 7883 default: assert(0); | |
| 7884 } | |
| 7885 } | |
| 7886 else | |
| 7887 type = t2; // t2 is complex | |
| 7888 } | |
| 7889 else if (t2->isimaginary()) | |
| 7890 { | |
| 7891 type = t1; // t1 is complex | |
| 7892 } | |
| 7893 } | |
| 7894 return this; | |
| 7895 } | |
| 7896 | |
| 7897 /************************************************************/ | |
| 7898 | |
| 7899 ModExp::ModExp(Loc loc, Expression *e1, Expression *e2) | |
| 7900 : BinExp(loc, TOKmod, sizeof(ModExp), e1, e2) | |
| 7901 { | |
| 7902 } | |
| 7903 | |
| 7904 Expression *ModExp::semantic(Scope *sc) | |
| 7905 { Expression *e; | |
| 7906 | |
| 7907 if (type) | |
| 7908 return this; | |
| 7909 | |
| 7910 BinExp::semanticp(sc); | |
| 7911 e = op_overload(sc); | |
| 7912 if (e) | |
| 7913 return e; | |
| 7914 | |
| 7915 typeCombine(sc); | |
| 7916 e1->checkArithmetic(); | |
| 7917 e2->checkArithmetic(); | |
| 7918 if (type->isfloating()) | |
| 7919 { type = e1->type; | |
| 7920 if (e2->type->iscomplex()) | |
| 7921 { error("cannot perform modulo complex arithmetic"); | |
| 7922 return new IntegerExp(0); | |
| 7923 } | |
| 7924 } | |
| 7925 return this; | |
| 7926 } | |
| 7927 | |
| 7928 /************************************************************/ | |
| 7929 | |
| 7930 ShlExp::ShlExp(Loc loc, Expression *e1, Expression *e2) | |
| 7931 : BinExp(loc, TOKshl, sizeof(ShlExp), e1, e2) | |
| 7932 { | |
| 7933 } | |
| 7934 | |
| 7935 Expression *ShlExp::semantic(Scope *sc) | |
| 7936 { Expression *e; | |
| 7937 | |
| 7938 //printf("ShlExp::semantic(), type = %p\n", type); | |
| 7939 if (!type) | |
| 7940 { BinExp::semanticp(sc); | |
| 7941 e = op_overload(sc); | |
| 7942 if (e) | |
| 7943 return e; | |
| 7944 e1 = e1->checkIntegral(); | |
| 7945 e2 = e2->checkIntegral(); | |
| 7946 e1 = e1->integralPromotions(sc); | |
| 42 | 7947 //e2 = e2->castTo(sc, Type::tshiftcnt); |
| 7948 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 1 | 7949 type = e1->type; |
| 7950 } | |
| 7951 return this; | |
| 7952 } | |
| 7953 | |
| 7954 /************************************************************/ | |
| 7955 | |
| 7956 ShrExp::ShrExp(Loc loc, Expression *e1, Expression *e2) | |
| 7957 : BinExp(loc, TOKshr, sizeof(ShrExp), e1, e2) | |
| 7958 { | |
| 7959 } | |
| 7960 | |
| 7961 Expression *ShrExp::semantic(Scope *sc) | |
| 7962 { Expression *e; | |
| 7963 | |
| 7964 if (!type) | |
| 7965 { BinExp::semanticp(sc); | |
| 7966 e = op_overload(sc); | |
| 7967 if (e) | |
| 7968 return e; | |
| 7969 e1 = e1->checkIntegral(); | |
| 7970 e2 = e2->checkIntegral(); | |
| 7971 e1 = e1->integralPromotions(sc); | |
| 42 | 7972 //e2 = e2->castTo(sc, Type::tshiftcnt); |
| 7973 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 1 | 7974 type = e1->type; |
| 7975 } | |
| 7976 return this; | |
| 7977 } | |
| 7978 | |
| 7979 /************************************************************/ | |
| 7980 | |
| 7981 UshrExp::UshrExp(Loc loc, Expression *e1, Expression *e2) | |
| 7982 : BinExp(loc, TOKushr, sizeof(UshrExp), e1, e2) | |
| 7983 { | |
| 7984 } | |
| 7985 | |
| 7986 Expression *UshrExp::semantic(Scope *sc) | |
| 7987 { Expression *e; | |
| 7988 | |
| 7989 if (!type) | |
| 7990 { BinExp::semanticp(sc); | |
| 7991 e = op_overload(sc); | |
| 7992 if (e) | |
| 7993 return e; | |
| 7994 e1 = e1->checkIntegral(); | |
| 7995 e2 = e2->checkIntegral(); | |
| 7996 e1 = e1->integralPromotions(sc); | |
| 42 | 7997 //e2 = e2->castTo(sc, Type::tshiftcnt); |
| 7998 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 1 | 7999 type = e1->type; |
| 8000 } | |
| 8001 return this; | |
| 8002 } | |
| 8003 | |
| 8004 /************************************************************/ | |
| 8005 | |
| 8006 AndExp::AndExp(Loc loc, Expression *e1, Expression *e2) | |
| 8007 : BinExp(loc, TOKand, sizeof(AndExp), e1, e2) | |
| 8008 { | |
| 8009 } | |
| 8010 | |
| 8011 Expression *AndExp::semantic(Scope *sc) | |
| 8012 { Expression *e; | |
| 8013 | |
| 8014 if (!type) | |
| 8015 { BinExp::semanticp(sc); | |
| 8016 e = op_overload(sc); | |
| 8017 if (e) | |
| 8018 return e; | |
| 8019 if (e1->type->toBasetype()->ty == Tbool && | |
| 8020 e2->type->toBasetype()->ty == Tbool) | |
| 8021 { | |
| 8022 type = e1->type; | |
| 8023 e = this; | |
| 8024 } | |
| 8025 else | |
| 8026 { | |
| 8027 typeCombine(sc); | |
| 8028 e1->checkIntegral(); | |
| 8029 e2->checkIntegral(); | |
| 8030 } | |
| 8031 } | |
| 8032 return this; | |
| 8033 } | |
| 8034 | |
| 8035 /************************************************************/ | |
| 8036 | |
| 8037 OrExp::OrExp(Loc loc, Expression *e1, Expression *e2) | |
| 8038 : BinExp(loc, TOKor, sizeof(OrExp), e1, e2) | |
| 8039 { | |
| 8040 } | |
| 8041 | |
| 8042 Expression *OrExp::semantic(Scope *sc) | |
| 8043 { Expression *e; | |
| 8044 | |
| 8045 if (!type) | |
| 8046 { BinExp::semanticp(sc); | |
| 8047 e = op_overload(sc); | |
| 8048 if (e) | |
| 8049 return e; | |
| 8050 if (e1->type->toBasetype()->ty == Tbool && | |
| 8051 e2->type->toBasetype()->ty == Tbool) | |
| 8052 { | |
| 8053 type = e1->type; | |
| 8054 e = this; | |
| 8055 } | |
| 8056 else | |
| 8057 { | |
| 8058 typeCombine(sc); | |
| 8059 e1->checkIntegral(); | |
| 8060 e2->checkIntegral(); | |
| 8061 } | |
| 8062 } | |
| 8063 return this; | |
| 8064 } | |
| 8065 | |
| 8066 /************************************************************/ | |
| 8067 | |
| 8068 XorExp::XorExp(Loc loc, Expression *e1, Expression *e2) | |
| 8069 : BinExp(loc, TOKxor, sizeof(XorExp), e1, e2) | |
| 8070 { | |
| 8071 } | |
| 8072 | |
| 8073 Expression *XorExp::semantic(Scope *sc) | |
| 8074 { Expression *e; | |
| 8075 | |
| 8076 if (!type) | |
| 8077 { BinExp::semanticp(sc); | |
| 8078 e = op_overload(sc); | |
| 8079 if (e) | |
| 8080 return e; | |
| 8081 if (e1->type->toBasetype()->ty == Tbool && | |
| 8082 e2->type->toBasetype()->ty == Tbool) | |
| 8083 { | |
| 8084 type = e1->type; | |
| 8085 e = this; | |
| 8086 } | |
| 8087 else | |
| 8088 { | |
| 8089 typeCombine(sc); | |
| 8090 e1->checkIntegral(); | |
| 8091 e2->checkIntegral(); | |
| 8092 } | |
| 8093 } | |
| 8094 return this; | |
| 8095 } | |
| 8096 | |
| 8097 | |
| 8098 /************************************************************/ | |
| 8099 | |
| 8100 OrOrExp::OrOrExp(Loc loc, Expression *e1, Expression *e2) | |
| 8101 : BinExp(loc, TOKoror, sizeof(OrOrExp), e1, e2) | |
| 8102 { | |
| 8103 } | |
| 8104 | |
| 8105 Expression *OrOrExp::semantic(Scope *sc) | |
| 8106 { | |
| 8107 unsigned cs1; | |
| 8108 | |
| 8109 // same as for AndAnd | |
| 8110 e1 = e1->semantic(sc); | |
| 8111 e1 = resolveProperties(sc, e1); | |
| 8112 e1 = e1->checkToPointer(); | |
| 8113 e1 = e1->checkToBoolean(); | |
| 8114 cs1 = sc->callSuper; | |
| 8115 | |
| 8116 if (sc->flags & SCOPEstaticif) | |
| 8117 { | |
| 8118 /* If in static if, don't evaluate e2 if we don't have to. | |
| 8119 */ | |
| 8120 e1 = e1->optimize(WANTflags); | |
| 8121 if (e1->isBool(TRUE)) | |
| 8122 { | |
| 8123 return new IntegerExp(loc, 1, Type::tboolean); | |
| 8124 } | |
| 8125 } | |
| 8126 | |
| 8127 e2 = e2->semantic(sc); | |
| 8128 sc->mergeCallSuper(loc, cs1); | |
| 8129 e2 = resolveProperties(sc, e2); | |
| 8130 e2 = e2->checkToPointer(); | |
| 8131 | |
| 8132 type = Type::tboolean; | |
| 8133 if (e1->type->ty == Tvoid) | |
| 8134 type = Type::tvoid; | |
| 8135 if (e2->op == TOKtype || e2->op == TOKimport) | |
| 8136 error("%s is not an expression", e2->toChars()); | |
| 8137 return this; | |
| 8138 } | |
| 8139 | |
| 8140 Expression *OrOrExp::checkToBoolean() | |
| 8141 { | |
| 8142 e2 = e2->checkToBoolean(); | |
| 8143 return this; | |
| 8144 } | |
| 8145 | |
| 8146 int OrOrExp::isBit() | |
| 8147 { | |
| 8148 return TRUE; | |
| 8149 } | |
| 8150 | |
| 8151 int OrOrExp::checkSideEffect(int flag) | |
| 8152 { | |
| 8153 if (flag == 2) | |
| 8154 { | |
| 8155 return e1->checkSideEffect(2) || e2->checkSideEffect(2); | |
| 8156 } | |
| 8157 else | |
| 8158 { e1->checkSideEffect(1); | |
| 8159 return e2->checkSideEffect(flag); | |
| 8160 } | |
| 8161 } | |
| 8162 | |
| 8163 /************************************************************/ | |
| 8164 | |
| 8165 AndAndExp::AndAndExp(Loc loc, Expression *e1, Expression *e2) | |
| 8166 : BinExp(loc, TOKandand, sizeof(AndAndExp), e1, e2) | |
| 8167 { | |
| 8168 } | |
| 8169 | |
| 8170 Expression *AndAndExp::semantic(Scope *sc) | |
| 8171 { | |
| 8172 unsigned cs1; | |
| 8173 | |
| 8174 // same as for OrOr | |
| 8175 e1 = e1->semantic(sc); | |
| 8176 e1 = resolveProperties(sc, e1); | |
| 8177 e1 = e1->checkToPointer(); | |
| 8178 e1 = e1->checkToBoolean(); | |
| 8179 cs1 = sc->callSuper; | |
| 8180 | |
| 8181 if (sc->flags & SCOPEstaticif) | |
| 8182 { | |
| 8183 /* If in static if, don't evaluate e2 if we don't have to. | |
| 8184 */ | |
| 8185 e1 = e1->optimize(WANTflags); | |
| 8186 if (e1->isBool(FALSE)) | |
| 8187 { | |
| 8188 return new IntegerExp(loc, 0, Type::tboolean); | |
| 8189 } | |
| 8190 } | |
| 8191 | |
| 8192 e2 = e2->semantic(sc); | |
| 8193 sc->mergeCallSuper(loc, cs1); | |
| 8194 e2 = resolveProperties(sc, e2); | |
| 8195 e2 = e2->checkToPointer(); | |
| 8196 | |
| 8197 type = Type::tboolean; | |
| 8198 if (e1->type->ty == Tvoid) | |
| 8199 type = Type::tvoid; | |
| 8200 if (e2->op == TOKtype || e2->op == TOKimport) | |
| 8201 error("%s is not an expression", e2->toChars()); | |
| 8202 return this; | |
| 8203 } | |
| 8204 | |
| 8205 Expression *AndAndExp::checkToBoolean() | |
| 8206 { | |
| 8207 e2 = e2->checkToBoolean(); | |
| 8208 return this; | |
| 8209 } | |
| 8210 | |
| 8211 int AndAndExp::isBit() | |
| 8212 { | |
| 8213 return TRUE; | |
| 8214 } | |
| 8215 | |
| 8216 int AndAndExp::checkSideEffect(int flag) | |
| 8217 { | |
| 8218 if (flag == 2) | |
| 8219 { | |
| 8220 return e1->checkSideEffect(2) || e2->checkSideEffect(2); | |
| 8221 } | |
| 8222 else | |
| 8223 { | |
| 8224 e1->checkSideEffect(1); | |
| 8225 return e2->checkSideEffect(flag); | |
| 8226 } | |
| 8227 } | |
| 8228 | |
| 8229 /************************************************************/ | |
| 8230 | |
| 8231 InExp::InExp(Loc loc, Expression *e1, Expression *e2) | |
| 8232 : BinExp(loc, TOKin, sizeof(InExp), e1, e2) | |
| 8233 { | |
| 8234 } | |
| 8235 | |
| 8236 Expression *InExp::semantic(Scope *sc) | |
| 8237 { Expression *e; | |
| 8238 | |
| 8239 if (type) | |
| 8240 return this; | |
| 8241 | |
| 8242 BinExp::semanticp(sc); | |
| 8243 e = op_overload(sc); | |
| 8244 if (e) | |
| 8245 return e; | |
| 8246 | |
| 8247 //type = Type::tboolean; | |
| 8248 Type *t2b = e2->type->toBasetype(); | |
| 8249 if (t2b->ty != Taarray) | |
| 8250 { | |
| 8251 error("rvalue of in expression must be an associative array, not %s", e2->type->toChars()); | |
| 8252 type = Type::terror; | |
| 8253 } | |
| 8254 else | |
| 8255 { | |
| 8256 TypeAArray *ta = (TypeAArray *)t2b; | |
| 8257 | |
| 8258 // Convert key to type of key | |
| 8259 e1 = e1->implicitCastTo(sc, ta->index); | |
| 8260 | |
| 8261 // Return type is pointer to value | |
| 8262 type = ta->next->pointerTo(); | |
| 8263 } | |
| 8264 return this; | |
| 8265 } | |
| 8266 | |
| 8267 int InExp::isBit() | |
| 8268 { | |
| 8269 return FALSE; | |
| 8270 } | |
| 8271 | |
| 8272 | |
| 8273 /************************************************************/ | |
| 8274 | |
| 8275 /* This deletes the key e1 from the associative array e2 | |
| 8276 */ | |
| 8277 | |
| 8278 RemoveExp::RemoveExp(Loc loc, Expression *e1, Expression *e2) | |
| 8279 : BinExp(loc, TOKremove, sizeof(RemoveExp), e1, e2) | |
| 8280 { | |
| 8281 type = Type::tvoid; | |
| 8282 } | |
| 8283 | |
| 8284 /************************************************************/ | |
| 8285 | |
| 8286 CmpExp::CmpExp(enum TOK op, Loc loc, Expression *e1, Expression *e2) | |
| 8287 : BinExp(loc, op, sizeof(CmpExp), e1, e2) | |
| 8288 { | |
| 8289 } | |
| 8290 | |
| 8291 Expression *CmpExp::semantic(Scope *sc) | |
| 8292 { Expression *e; | |
| 8293 Type *t1; | |
| 8294 Type *t2; | |
| 8295 | |
| 8296 #if LOGSEMANTIC | |
| 8297 printf("CmpExp::semantic('%s')\n", toChars()); | |
| 8298 #endif | |
| 8299 if (type) | |
| 8300 return this; | |
| 8301 | |
| 8302 BinExp::semanticp(sc); | |
| 8303 e = op_overload(sc); | |
| 8304 if (e) | |
| 8305 { | |
| 8306 e = new CmpExp(op, loc, e, new IntegerExp(loc, 0, Type::tint32)); | |
| 8307 e = e->semantic(sc); | |
| 8308 return e; | |
| 8309 } | |
| 8310 | |
| 8311 typeCombine(sc); | |
| 8312 type = Type::tboolean; | |
| 8313 | |
| 8314 // Special handling for array comparisons | |
| 8315 t1 = e1->type->toBasetype(); | |
| 8316 t2 = e2->type->toBasetype(); | |
| 8317 if ((t1->ty == Tarray || t1->ty == Tsarray) && | |
| 8318 (t2->ty == Tarray || t2->ty == Tsarray)) | |
| 8319 { | |
| 8320 if (!t1->next->equals(t2->next)) | |
| 8321 error("array comparison type mismatch, %s vs %s", t1->next->toChars(), t2->next->toChars()); | |
| 8322 e = this; | |
| 8323 } | |
| 8324 else if (t1->ty == Tstruct || t2->ty == Tstruct || | |
| 8325 (t1->ty == Tclass && t2->ty == Tclass)) | |
| 8326 { | |
| 8327 if (t2->ty == Tstruct) | |
| 8328 error("need member function opCmp() for %s %s to compare", t2->toDsymbol(sc)->kind(), t2->toChars()); | |
| 8329 else | |
| 8330 error("need member function opCmp() for %s %s to compare", t1->toDsymbol(sc)->kind(), t1->toChars()); | |
| 8331 e = this; | |
| 8332 } | |
| 8333 #if 1 | |
| 8334 else if (t1->iscomplex() || t2->iscomplex()) | |
| 8335 { | |
| 8336 error("compare not defined for complex operands"); | |
| 8337 e = new IntegerExp(0); | |
| 8338 } | |
| 8339 #endif | |
| 8340 else | |
| 8341 e = this; | |
| 8342 return e; | |
| 8343 } | |
| 8344 | |
| 8345 int CmpExp::isBit() | |
| 8346 { | |
| 8347 return TRUE; | |
| 8348 } | |
| 8349 | |
| 8350 | |
| 8351 /************************************************************/ | |
| 8352 | |
| 8353 EqualExp::EqualExp(enum TOK op, Loc loc, Expression *e1, Expression *e2) | |
| 8354 : BinExp(loc, op, sizeof(EqualExp), e1, e2) | |
| 8355 { | |
| 8356 } | |
| 8357 | |
| 8358 Expression *EqualExp::semantic(Scope *sc) | |
| 8359 { Expression *e; | |
| 8360 Type *t1; | |
| 8361 Type *t2; | |
| 8362 | |
| 8363 //printf("EqualExp::semantic('%s')\n", toChars()); | |
| 8364 if (type) | |
| 8365 return this; | |
| 8366 | |
| 8367 BinExp::semanticp(sc); | |
| 8368 | |
| 8369 /* Before checking for operator overloading, check to see if we're | |
| 8370 * comparing the addresses of two statics. If so, we can just see | |
| 8371 * if they are the same symbol. | |
| 8372 */ | |
| 8373 if (e1->op == TOKaddress && e2->op == TOKaddress) | |
| 8374 { AddrExp *ae1 = (AddrExp *)e1; | |
| 8375 AddrExp *ae2 = (AddrExp *)e2; | |
| 8376 | |
| 8377 if (ae1->e1->op == TOKvar && ae2->e1->op == TOKvar) | |
| 8378 { VarExp *ve1 = (VarExp *)ae1->e1; | |
| 8379 VarExp *ve2 = (VarExp *)ae2->e1; | |
| 8380 | |
| 8381 if (ve1->var == ve2->var /*|| ve1->var->toSymbol() == ve2->var->toSymbol()*/) | |
| 8382 { | |
| 8383 // They are the same, result is 'true' for ==, 'false' for != | |
| 8384 e = new IntegerExp(loc, (op == TOKequal), Type::tboolean); | |
| 8385 return e; | |
| 8386 } | |
| 8387 } | |
| 8388 } | |
| 8389 | |
| 8390 //if (e2->op != TOKnull) | |
| 8391 { | |
| 8392 e = op_overload(sc); | |
| 8393 if (e) | |
| 8394 { | |
| 8395 if (op == TOKnotequal) | |
| 8396 { | |
| 8397 e = new NotExp(e->loc, e); | |
| 8398 e = e->semantic(sc); | |
| 8399 } | |
| 8400 return e; | |
| 8401 } | |
| 8402 } | |
| 8403 | |
| 8404 e = typeCombine(sc); | |
| 8405 type = Type::tboolean; | |
| 8406 | |
| 8407 // Special handling for array comparisons | |
| 8408 t1 = e1->type->toBasetype(); | |
| 8409 t2 = e2->type->toBasetype(); | |
| 8410 if ((t1->ty == Tarray || t1->ty == Tsarray) && | |
| 8411 (t2->ty == Tarray || t2->ty == Tsarray)) | |
| 8412 { | |
| 8413 if (!t1->next->equals(t2->next)) | |
| 8414 error("array comparison type mismatch, %s vs %s", t1->next->toChars(), t2->next->toChars()); | |
| 8415 } | |
| 8416 else | |
| 8417 { | |
| 8418 if (e1->type != e2->type && e1->type->isfloating() && e2->type->isfloating()) | |
| 8419 { | |
| 8420 // Cast both to complex | |
| 8421 e1 = e1->castTo(sc, Type::tcomplex80); | |
| 8422 e2 = e2->castTo(sc, Type::tcomplex80); | |
| 8423 } | |
| 8424 } | |
| 8425 return e; | |
| 8426 } | |
| 8427 | |
| 8428 int EqualExp::isBit() | |
| 8429 { | |
| 8430 return TRUE; | |
| 8431 } | |
| 8432 | |
| 8433 | |
| 8434 | |
| 8435 /************************************************************/ | |
| 8436 | |
| 8437 IdentityExp::IdentityExp(enum TOK op, Loc loc, Expression *e1, Expression *e2) | |
| 8438 : BinExp(loc, op, sizeof(IdentityExp), e1, e2) | |
| 8439 { | |
| 8440 } | |
| 8441 | |
| 8442 Expression *IdentityExp::semantic(Scope *sc) | |
| 8443 { | |
| 8444 if (type) | |
| 8445 return this; | |
| 8446 | |
| 8447 BinExp::semanticp(sc); | |
| 8448 type = Type::tboolean; | |
| 8449 typeCombine(sc); | |
| 8450 if (e1->type != e2->type && e1->type->isfloating() && e2->type->isfloating()) | |
| 8451 { | |
| 8452 // Cast both to complex | |
| 8453 e1 = e1->castTo(sc, Type::tcomplex80); | |
| 8454 e2 = e2->castTo(sc, Type::tcomplex80); | |
| 8455 } | |
| 8456 return this; | |
| 8457 } | |
| 8458 | |
| 8459 int IdentityExp::isBit() | |
| 8460 { | |
| 8461 return TRUE; | |
| 8462 } | |
| 8463 | |
| 8464 | |
| 8465 /****************************************************************/ | |
| 8466 | |
| 8467 CondExp::CondExp(Loc loc, Expression *econd, Expression *e1, Expression *e2) | |
| 8468 : BinExp(loc, TOKquestion, sizeof(CondExp), e1, e2) | |
| 8469 { | |
| 8470 this->econd = econd; | |
| 8471 } | |
| 8472 | |
| 8473 Expression *CondExp::syntaxCopy() | |
| 8474 { | |
| 8475 return new CondExp(loc, econd->syntaxCopy(), e1->syntaxCopy(), e2->syntaxCopy()); | |
| 8476 } | |
| 8477 | |
| 8478 | |
| 8479 Expression *CondExp::semantic(Scope *sc) | |
| 8480 { Type *t1; | |
| 8481 Type *t2; | |
| 8482 unsigned cs0; | |
| 8483 unsigned cs1; | |
| 8484 | |
| 8485 #if LOGSEMANTIC | |
| 8486 printf("CondExp::semantic('%s')\n", toChars()); | |
| 8487 #endif | |
| 8488 if (type) | |
| 8489 return this; | |
| 8490 | |
| 8491 econd = econd->semantic(sc); | |
| 8492 econd = resolveProperties(sc, econd); | |
| 8493 econd = econd->checkToPointer(); | |
| 8494 econd = econd->checkToBoolean(); | |
| 8495 | |
| 8496 #if 0 /* this cannot work right because the types of e1 and e2 | |
| 8497 * both contribute to the type of the result. | |
| 8498 */ | |
| 8499 if (sc->flags & SCOPEstaticif) | |
| 8500 { | |
| 8501 /* If in static if, don't evaluate what we don't have to. | |
| 8502 */ | |
| 8503 econd = econd->optimize(WANTflags); | |
| 8504 if (econd->isBool(TRUE)) | |
| 8505 { | |
| 8506 e1 = e1->semantic(sc); | |
| 8507 e1 = resolveProperties(sc, e1); | |
| 8508 return e1; | |
| 8509 } | |
| 8510 else if (econd->isBool(FALSE)) | |
| 8511 { | |
| 8512 e2 = e2->semantic(sc); | |
| 8513 e2 = resolveProperties(sc, e2); | |
| 8514 return e2; | |
| 8515 } | |
| 8516 } | |
| 8517 #endif | |
| 8518 | |
| 8519 | |
| 8520 cs0 = sc->callSuper; | |
| 8521 e1 = e1->semantic(sc); | |
| 8522 e1 = resolveProperties(sc, e1); | |
| 8523 cs1 = sc->callSuper; | |
| 8524 sc->callSuper = cs0; | |
| 8525 e2 = e2->semantic(sc); | |
| 8526 e2 = resolveProperties(sc, e2); | |
| 8527 sc->mergeCallSuper(loc, cs1); | |
| 8528 | |
| 8529 | |
| 8530 // If either operand is void, the result is void | |
| 8531 t1 = e1->type; | |
| 8532 t2 = e2->type; | |
| 8533 if (t1->ty == Tvoid || t2->ty == Tvoid) | |
| 8534 type = Type::tvoid; | |
| 8535 else if (t1 == t2) | |
| 8536 type = t1; | |
| 8537 else | |
| 8538 { | |
| 8539 typeCombine(sc); | |
| 8540 switch (e1->type->toBasetype()->ty) | |
| 8541 { | |
| 8542 case Tcomplex32: | |
| 8543 case Tcomplex64: | |
| 8544 case Tcomplex80: | |
| 8545 e2 = e2->castTo(sc, e1->type); | |
| 8546 break; | |
| 8547 } | |
| 8548 switch (e2->type->toBasetype()->ty) | |
| 8549 { | |
| 8550 case Tcomplex32: | |
| 8551 case Tcomplex64: | |
| 8552 case Tcomplex80: | |
| 8553 e1 = e1->castTo(sc, e2->type); | |
| 8554 break; | |
| 8555 } | |
| 8556 } | |
| 8557 return this; | |
| 8558 } | |
| 8559 | |
| 8560 Expression *CondExp::toLvalue(Scope *sc, Expression *ex) | |
| 8561 { | |
| 8562 PtrExp *e; | |
| 8563 | |
| 8564 // convert (econd ? e1 : e2) to *(econd ? &e1 : &e2) | |
| 8565 e = new PtrExp(loc, this, type); | |
| 8566 | |
| 8567 e1 = e1->addressOf(sc); | |
| 8568 //e1 = e1->toLvalue(sc, NULL); | |
| 8569 | |
| 8570 e2 = e2->addressOf(sc); | |
| 8571 //e2 = e2->toLvalue(sc, NULL); | |
| 8572 | |
| 8573 typeCombine(sc); | |
| 8574 | |
| 8575 type = e2->type; | |
| 8576 return e; | |
| 8577 } | |
| 8578 | |
| 8579 Expression *CondExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 8580 { | |
| 8581 error("conditional expression %s is not a modifiable lvalue", toChars()); | |
| 8582 return this; | |
| 8583 } | |
| 8584 | |
| 8585 void CondExp::checkEscape() | |
| 8586 { | |
| 8587 e1->checkEscape(); | |
| 8588 e2->checkEscape(); | |
| 8589 } | |
| 8590 | |
| 8591 | |
| 8592 Expression *CondExp::checkToBoolean() | |
| 8593 { | |
| 8594 e1 = e1->checkToBoolean(); | |
| 8595 e2 = e2->checkToBoolean(); | |
| 8596 return this; | |
| 8597 } | |
| 8598 | |
| 8599 int CondExp::checkSideEffect(int flag) | |
| 8600 { | |
| 8601 if (flag == 2) | |
| 8602 { | |
| 8603 return econd->checkSideEffect(2) || | |
| 8604 e1->checkSideEffect(2) || | |
| 8605 e2->checkSideEffect(2); | |
| 8606 } | |
| 8607 else | |
| 8608 { | |
| 8609 econd->checkSideEffect(1); | |
| 8610 e1->checkSideEffect(flag); | |
| 8611 return e2->checkSideEffect(flag); | |
| 8612 } | |
| 8613 } | |
| 8614 | |
| 8615 void CondExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 8616 { | |
| 8617 expToCBuffer(buf, hgs, econd, PREC_oror); | |
| 8618 buf->writestring(" ? "); | |
| 8619 expToCBuffer(buf, hgs, e1, PREC_expr); | |
| 8620 buf->writestring(" : "); | |
| 8621 expToCBuffer(buf, hgs, e2, PREC_cond); | |
| 8622 } | |
| 8623 | |
| 8624 |