Mercurial > projects > ldc
annotate dmd/expression.c @ 270:d9d5d59873d8 trunk
[svn r291] Fixed a bunch of the old Phobos tests to work with Tango.
Branch statements now emit a new block after it.
Fixed the _adSort runtime function had a bad signature.
Added a missing dot prefix on compiler generated string tables for string switch.
Fixed, PTRSIZE seems like it was wrong on 64bit, now it definitely gets set properly.
| author | lindquist |
|---|---|
| date | Mon, 16 Jun 2008 16:01:19 +0200 |
| parents | a8cd9bc1021a |
| children | 297690b5d4a5 |
| rev | line source |
|---|---|
| 159 | 1 |
| 2 // Compiler implementation of the D programming language | |
| 3 // Copyright (c) 1999-2008 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[TOKdotvar] = PREC_primary; | |
| 93 precedence[TOKimport] = PREC_primary; | |
| 94 precedence[TOKidentifier] = PREC_primary; | |
| 95 precedence[TOKthis] = PREC_primary; | |
| 96 precedence[TOKsuper] = PREC_primary; | |
| 97 precedence[TOKint64] = PREC_primary; | |
| 98 precedence[TOKfloat64] = PREC_primary; | |
| 99 precedence[TOKnull] = PREC_primary; | |
| 100 precedence[TOKstring] = PREC_primary; | |
| 101 precedence[TOKarrayliteral] = PREC_primary; | |
| 102 precedence[TOKtypedot] = PREC_primary; | |
| 103 precedence[TOKtypeid] = PREC_primary; | |
| 104 precedence[TOKis] = PREC_primary; | |
| 105 precedence[TOKassert] = PREC_primary; | |
| 106 precedence[TOKfunction] = PREC_primary; | |
| 107 precedence[TOKvar] = PREC_primary; | |
| 108 | |
| 109 // post | |
| 110 precedence[TOKdotti] = PREC_primary; | |
| 111 precedence[TOKdot] = PREC_primary; | |
| 112 // precedence[TOKarrow] = PREC_primary; | |
| 113 precedence[TOKplusplus] = PREC_primary; | |
| 114 precedence[TOKminusminus] = PREC_primary; | |
| 115 precedence[TOKcall] = PREC_primary; | |
| 116 precedence[TOKslice] = PREC_primary; | |
| 117 precedence[TOKarray] = PREC_primary; | |
| 118 | |
| 119 precedence[TOKaddress] = PREC_unary; | |
| 120 precedence[TOKstar] = PREC_unary; | |
| 121 precedence[TOKneg] = PREC_unary; | |
| 122 precedence[TOKuadd] = PREC_unary; | |
| 123 precedence[TOKnot] = PREC_unary; | |
| 124 precedence[TOKtobool] = PREC_add; | |
| 125 precedence[TOKtilde] = PREC_unary; | |
| 126 precedence[TOKdelete] = PREC_unary; | |
| 127 precedence[TOKnew] = PREC_unary; | |
| 128 precedence[TOKcast] = PREC_unary; | |
| 129 | |
| 130 precedence[TOKmul] = PREC_mul; | |
| 131 precedence[TOKdiv] = PREC_mul; | |
| 132 precedence[TOKmod] = PREC_mul; | |
| 133 | |
| 134 precedence[TOKadd] = PREC_add; | |
| 135 precedence[TOKmin] = PREC_add; | |
| 136 precedence[TOKcat] = PREC_add; | |
| 137 | |
| 138 precedence[TOKshl] = PREC_shift; | |
| 139 precedence[TOKshr] = PREC_shift; | |
| 140 precedence[TOKushr] = PREC_shift; | |
| 141 | |
| 142 precedence[TOKlt] = PREC_rel; | |
| 143 precedence[TOKle] = PREC_rel; | |
| 144 precedence[TOKgt] = PREC_rel; | |
| 145 precedence[TOKge] = PREC_rel; | |
| 146 precedence[TOKunord] = PREC_rel; | |
| 147 precedence[TOKlg] = PREC_rel; | |
| 148 precedence[TOKleg] = PREC_rel; | |
| 149 precedence[TOKule] = PREC_rel; | |
| 150 precedence[TOKul] = PREC_rel; | |
| 151 precedence[TOKuge] = PREC_rel; | |
| 152 precedence[TOKug] = PREC_rel; | |
| 153 precedence[TOKue] = PREC_rel; | |
| 154 precedence[TOKin] = PREC_rel; | |
| 155 | |
| 156 precedence[TOKequal] = PREC_equal; | |
| 157 precedence[TOKnotequal] = PREC_equal; | |
| 158 precedence[TOKidentity] = PREC_equal; | |
| 159 precedence[TOKnotidentity] = PREC_equal; | |
| 160 | |
| 161 precedence[TOKand] = PREC_and; | |
| 162 | |
| 163 precedence[TOKxor] = PREC_xor; | |
| 164 | |
| 165 precedence[TOKor] = PREC_or; | |
| 166 | |
| 167 precedence[TOKandand] = PREC_andand; | |
| 168 | |
| 169 precedence[TOKoror] = PREC_oror; | |
| 170 | |
| 171 precedence[TOKquestion] = PREC_cond; | |
| 172 | |
| 173 precedence[TOKassign] = PREC_assign; | |
| 174 precedence[TOKconstruct] = PREC_assign; | |
| 175 precedence[TOKblit] = PREC_assign; | |
| 176 precedence[TOKaddass] = PREC_assign; | |
| 177 precedence[TOKminass] = PREC_assign; | |
| 178 precedence[TOKcatass] = PREC_assign; | |
| 179 precedence[TOKmulass] = PREC_assign; | |
| 180 precedence[TOKdivass] = PREC_assign; | |
| 181 precedence[TOKmodass] = PREC_assign; | |
| 182 precedence[TOKshlass] = PREC_assign; | |
| 183 precedence[TOKshrass] = PREC_assign; | |
| 184 precedence[TOKushrass] = PREC_assign; | |
| 185 precedence[TOKandass] = PREC_assign; | |
| 186 precedence[TOKorass] = PREC_assign; | |
| 187 precedence[TOKxorass] = PREC_assign; | |
| 188 | |
| 189 precedence[TOKcomma] = PREC_expr; | |
| 190 } | |
| 191 | |
| 192 /***************************************** | |
| 193 * Determine if 'this' is available. | |
| 194 * If it is, return the FuncDeclaration that has it. | |
| 195 */ | |
| 196 | |
| 197 FuncDeclaration *hasThis(Scope *sc) | |
| 198 { FuncDeclaration *fd; | |
| 199 FuncDeclaration *fdthis; | |
| 200 | |
| 201 //printf("hasThis()\n"); | |
| 202 fdthis = sc->parent->isFuncDeclaration(); | |
| 203 //printf("fdthis = %p, '%s'\n", fdthis, fdthis ? fdthis->toChars() : ""); | |
| 204 | |
| 205 // Go upwards until we find the enclosing member function | |
| 206 fd = fdthis; | |
| 207 while (1) | |
| 208 { | |
| 209 if (!fd) | |
| 210 { | |
| 211 goto Lno; | |
| 212 } | |
| 213 if (!fd->isNested()) | |
| 214 break; | |
| 215 | |
| 216 Dsymbol *parent = fd->parent; | |
| 217 while (parent) | |
| 218 { | |
| 219 TemplateInstance *ti = parent->isTemplateInstance(); | |
| 220 if (ti) | |
| 221 parent = ti->parent; | |
| 222 else | |
| 223 break; | |
| 224 } | |
| 225 | |
| 226 fd = fd->parent->isFuncDeclaration(); | |
| 227 } | |
| 228 | |
| 229 if (!fd->isThis()) | |
| 230 { //printf("test '%s'\n", fd->toChars()); | |
| 231 goto Lno; | |
| 232 } | |
| 233 | |
| 234 assert(fd->vthis); | |
| 235 return fd; | |
| 236 | |
| 237 Lno: | |
| 238 return NULL; // don't have 'this' available | |
| 239 } | |
| 240 | |
| 241 | |
| 242 /*************************************** | |
| 243 * Pull out any properties. | |
| 244 */ | |
| 245 | |
| 246 Expression *resolveProperties(Scope *sc, Expression *e) | |
| 247 { | |
| 248 //printf("resolveProperties(%s)\n", e->toChars()); | |
| 249 if (e->type) | |
| 250 { | |
| 251 Type *t = e->type->toBasetype(); | |
| 252 | |
| 253 if (t->ty == Tfunction) | |
| 254 { | |
| 255 e = new CallExp(e->loc, e); | |
| 256 e = e->semantic(sc); | |
| 257 } | |
| 258 | |
| 259 /* Look for e being a lazy parameter; rewrite as delegate call | |
| 260 */ | |
| 261 else if (e->op == TOKvar) | |
| 262 { VarExp *ve = (VarExp *)e; | |
| 263 | |
| 264 if (ve->var->storage_class & STClazy) | |
| 265 { | |
| 266 e = new CallExp(e->loc, e); | |
| 267 e = e->semantic(sc); | |
| 268 } | |
| 269 } | |
| 270 | |
| 271 else if (e->op == TOKdotexp) | |
| 272 { | |
| 273 e->error("expression has no value"); | |
| 274 } | |
| 275 } | |
| 276 return e; | |
| 277 } | |
| 278 | |
| 279 /****************************** | |
| 280 * Perform semantic() on an array of Expressions. | |
| 281 */ | |
| 282 | |
| 283 void arrayExpressionSemantic(Expressions *exps, Scope *sc) | |
| 284 { | |
| 285 if (exps) | |
| 286 { | |
| 287 for (size_t i = 0; i < exps->dim; i++) | |
| 288 { Expression *e = (Expression *)exps->data[i]; | |
| 289 | |
| 290 e = e->semantic(sc); | |
| 291 exps->data[i] = (void *)e; | |
| 292 } | |
| 293 } | |
| 294 } | |
| 295 | |
| 296 /**************************************** | |
| 297 * Expand tuples. | |
| 298 */ | |
| 299 | |
| 300 void expandTuples(Expressions *exps) | |
| 301 { | |
| 302 //printf("expandTuples()\n"); | |
| 303 if (exps) | |
| 304 { | |
| 305 for (size_t i = 0; i < exps->dim; i++) | |
| 306 { Expression *arg = (Expression *)exps->data[i]; | |
| 307 if (!arg) | |
| 308 continue; | |
| 309 | |
| 310 // Look for tuple with 0 members | |
| 311 if (arg->op == TOKtype) | |
| 312 { TypeExp *e = (TypeExp *)arg; | |
| 313 if (e->type->toBasetype()->ty == Ttuple) | |
| 314 { TypeTuple *tt = (TypeTuple *)e->type->toBasetype(); | |
| 315 | |
| 316 if (!tt->arguments || tt->arguments->dim == 0) | |
| 317 { | |
| 318 exps->remove(i); | |
| 319 if (i == exps->dim) | |
| 320 return; | |
| 321 i--; | |
| 322 continue; | |
| 323 } | |
| 324 } | |
| 325 } | |
| 326 | |
| 327 // Inline expand all the tuples | |
| 328 while (arg->op == TOKtuple) | |
| 329 { TupleExp *te = (TupleExp *)arg; | |
| 330 | |
| 331 exps->remove(i); // remove arg | |
| 332 exps->insert(i, te->exps); // replace with tuple contents | |
| 333 if (i == exps->dim) | |
| 334 return; // empty tuple, no more arguments | |
| 335 arg = (Expression *)exps->data[i]; | |
| 336 } | |
| 337 } | |
| 338 } | |
| 339 } | |
| 340 | |
| 341 /**************************************** | |
| 342 * Preprocess arguments to function. | |
| 343 */ | |
| 344 | |
| 345 void preFunctionArguments(Loc loc, Scope *sc, Expressions *exps) | |
| 346 { | |
| 347 if (exps) | |
| 348 { | |
| 349 expandTuples(exps); | |
| 350 | |
| 351 for (size_t i = 0; i < exps->dim; i++) | |
| 352 { Expression *arg = (Expression *)exps->data[i]; | |
| 353 | |
| 354 if (!arg->type) | |
| 355 { | |
| 356 #ifdef DEBUG | |
| 357 if (!global.gag) | |
| 358 printf("1: \n"); | |
| 359 #endif | |
| 360 arg->error("%s is not an expression", arg->toChars()); | |
| 361 arg = new IntegerExp(arg->loc, 0, Type::tint32); | |
| 362 } | |
| 363 | |
| 364 arg = resolveProperties(sc, arg); | |
| 365 exps->data[i] = (void *) arg; | |
| 366 | |
| 367 //arg->rvalue(); | |
| 368 #if 0 | |
| 369 if (arg->type->ty == Tfunction) | |
| 370 { | |
| 371 arg = new AddrExp(arg->loc, arg); | |
| 372 arg = arg->semantic(sc); | |
| 373 exps->data[i] = (void *) arg; | |
| 374 } | |
| 375 #endif | |
| 376 } | |
| 377 } | |
| 378 } | |
| 379 | |
| 380 | |
| 381 /**************************************** | |
| 382 * Now that we know the exact type of the function we're calling, | |
| 383 * the arguments[] need to be adjusted: | |
| 384 * 1) implicitly convert argument to the corresponding parameter type | |
| 385 * 2) add default arguments for any missing arguments | |
| 386 * 3) do default promotions on arguments corresponding to ... | |
| 387 * 4) add hidden _arguments[] argument | |
| 388 */ | |
| 389 | |
| 390 void functionArguments(Loc loc, Scope *sc, TypeFunction *tf, Expressions *arguments) | |
| 391 { | |
| 392 unsigned n; | |
| 393 int done; | |
| 394 Type *tb; | |
| 395 | |
| 396 //printf("functionArguments()\n"); | |
| 397 assert(arguments); | |
| 398 size_t nargs = arguments ? arguments->dim : 0; | |
| 399 size_t nparams = Argument::dim(tf->parameters); | |
| 400 | |
| 401 if (nargs > nparams && tf->varargs == 0) | |
| 402 error(loc, "expected %zu arguments, not %zu", nparams, nargs); | |
| 403 | |
| 404 n = (nargs > nparams) ? nargs : nparams; // n = max(nargs, nparams) | |
| 405 | |
| 406 done = 0; | |
| 407 for (size_t i = 0; i < n; i++) | |
| 408 { | |
| 409 Expression *arg; | |
| 410 | |
| 411 if (i < nargs) | |
| 412 arg = (Expression *)arguments->data[i]; | |
| 413 else | |
| 414 arg = NULL; | |
| 415 | |
| 416 if (i < nparams) | |
| 417 { | |
| 418 Argument *p = Argument::getNth(tf->parameters, i); | |
| 419 | |
| 420 if (!arg) | |
| 421 { | |
| 422 if (!p->defaultArg) | |
| 423 { | |
| 424 if (tf->varargs == 2 && i + 1 == nparams) | |
| 425 goto L2; | |
| 426 error(loc, "expected %zu arguments, not %zu", nparams, nargs); | |
| 427 break; | |
| 428 } | |
| 429 arg = p->defaultArg->copy(); | |
| 430 arguments->push(arg); | |
| 431 nargs++; | |
| 432 } | |
| 433 | |
| 434 if (tf->varargs == 2 && i + 1 == nparams) | |
| 435 { | |
| 436 //printf("\t\tvarargs == 2, p->type = '%s'\n", p->type->toChars()); | |
| 437 if (arg->implicitConvTo(p->type)) | |
| 438 { | |
| 439 if (nargs != nparams) | |
| 440 error(loc, "expected %zu arguments, not %zu", nparams, nargs); | |
| 441 goto L1; | |
| 442 } | |
| 443 L2: | |
| 444 Type *tb = p->type->toBasetype(); | |
| 445 Type *tret = p->isLazyArray(); | |
| 446 switch (tb->ty) | |
| 447 { | |
| 448 case Tsarray: | |
| 449 case Tarray: | |
| 450 { // Create a static array variable v of type arg->type | |
| 451 #ifdef IN_GCC | |
| 452 /* GCC 4.0 does not like zero length arrays used like | |
| 453 this; pass a null array value instead. Could also | |
| 454 just make a one-element array. */ | |
| 455 if (nargs - i == 0) | |
| 456 { | |
| 457 arg = new NullExp(loc); | |
| 458 break; | |
| 459 } | |
| 460 #endif | |
| 461 static int idn; | |
| 462 char name[10 + sizeof(idn)*3 + 1]; | |
| 463 sprintf(name, "__arrayArg%d", ++idn); | |
| 464 Identifier *id = Lexer::idPool(name); | |
| 465 Type *t = new TypeSArray(tb->next, new IntegerExp(nargs - i)); | |
| 466 t = t->semantic(loc, sc); | |
| 467 VarDeclaration *v = new VarDeclaration(loc, t, id, new VoidInitializer(loc)); | |
| 468 v->semantic(sc); | |
| 469 v->parent = sc->parent; | |
| 470 //sc->insert(v); | |
| 471 | |
| 472 Expression *c = new DeclarationExp(0, v); | |
| 473 c->type = v->type; | |
| 474 | |
| 475 for (size_t u = i; u < nargs; u++) | |
| 476 { Expression *a = (Expression *)arguments->data[u]; | |
| 477 if (tret && !tb->next->equals(a->type)) | |
| 478 a = a->toDelegate(sc, tret); | |
| 479 | |
| 480 Expression *e = new VarExp(loc, v); | |
| 481 e = new IndexExp(loc, e, new IntegerExp(u + 1 - nparams)); | |
| 482 e = new AssignExp(loc, e, a); | |
| 483 if (c) | |
| 484 c = new CommaExp(loc, c, e); | |
| 485 else | |
| 486 c = e; | |
| 487 } | |
| 488 arg = new VarExp(loc, v); | |
| 489 if (c) | |
| 490 arg = new CommaExp(loc, c, arg); | |
| 491 break; | |
| 492 } | |
| 493 case Tclass: | |
| 494 { /* Set arg to be: | |
| 495 * new Tclass(arg0, arg1, ..., argn) | |
| 496 */ | |
| 497 Expressions *args = new Expressions(); | |
| 498 args->setDim(nargs - i); | |
| 499 for (size_t u = i; u < nargs; u++) | |
| 500 args->data[u - i] = arguments->data[u]; | |
| 501 arg = new NewExp(loc, NULL, NULL, p->type, args); | |
| 502 break; | |
| 503 } | |
| 504 default: | |
| 505 if (!arg) | |
| 506 { error(loc, "not enough arguments"); | |
| 507 return; | |
| 508 } | |
| 509 break; | |
| 510 } | |
| 511 arg = arg->semantic(sc); | |
| 512 //printf("\targ = '%s'\n", arg->toChars()); | |
| 513 arguments->setDim(i + 1); | |
| 514 done = 1; | |
| 515 } | |
| 516 | |
| 517 L1: | |
| 518 if (!(p->storageClass & STClazy && p->type->ty == Tvoid)) | |
| 519 arg = arg->implicitCastTo(sc, p->type); | |
| 520 if (p->storageClass & (STCout | STCref)) | |
| 521 { | |
| 522 // BUG: should check that argument to ref is type 'invariant' | |
| 523 // BUG: assignments to ref should also be type 'invariant' | |
| 524 arg = arg->modifiableLvalue(sc, arg); | |
| 525 | |
| 526 //if (arg->op == TOKslice) | |
| 527 //arg->error("cannot modify slice %s", arg->toChars()); | |
| 528 } | |
| 529 | |
| 530 // Convert static arrays to pointers | |
| 531 tb = arg->type->toBasetype(); | |
| 532 if (tb->ty == Tsarray) | |
| 533 { | |
| 534 arg = arg->checkToPointer(); | |
| 535 } | |
| 536 | |
| 537 // Convert lazy argument to a delegate | |
| 538 if (p->storageClass & STClazy) | |
| 539 { | |
| 540 arg = arg->toDelegate(sc, p->type); | |
| 541 } | |
| 542 } | |
| 543 else | |
| 544 { | |
| 545 | |
| 546 // If not D linkage, do promotions | |
| 547 if (tf->linkage != LINKd) | |
| 548 { | |
| 549 // Promote bytes, words, etc., to ints | |
| 550 arg = arg->integralPromotions(sc); | |
| 551 | |
| 552 // Promote floats to doubles | |
| 553 switch (arg->type->ty) | |
| 554 { | |
| 555 case Tfloat32: | |
| 556 arg = arg->castTo(sc, Type::tfloat64); | |
| 557 break; | |
| 558 | |
| 559 case Timaginary32: | |
| 560 arg = arg->castTo(sc, Type::timaginary64); | |
| 561 break; | |
| 562 } | |
| 563 } | |
| 564 | |
| 565 // Convert static arrays to dynamic arrays | |
| 566 tb = arg->type->toBasetype(); | |
| 567 if (tb->ty == Tsarray) | |
| 568 { TypeSArray *ts = (TypeSArray *)tb; | |
| 569 Type *ta = tb->next->arrayOf(); | |
| 570 if (ts->size(arg->loc) == 0) | |
| 571 { arg = new NullExp(arg->loc); | |
| 572 arg->type = ta; | |
| 573 } | |
| 574 else | |
| 575 arg = arg->castTo(sc, ta); | |
| 576 } | |
| 577 | |
| 578 arg->rvalue(); | |
| 579 } | |
| 580 arg = arg->optimize(WANTvalue); | |
| 581 arguments->data[i] = (void *) arg; | |
| 582 if (done) | |
| 583 break; | |
| 584 } | |
| 585 | |
| 586 #if !IN_LLVM | |
| 587 // If D linkage and variadic, add _arguments[] as first argument | |
| 588 if (tf->linkage == LINKd && tf->varargs == 1) | |
| 589 { | |
| 590 Expression *e; | |
| 591 | |
| 592 e = createTypeInfoArray(sc, (Expression **)&arguments->data[nparams], | |
| 593 arguments->dim - nparams); | |
| 594 arguments->insert(0, e); | |
| 595 } | |
| 596 #endif | |
| 597 } | |
| 598 | |
| 599 /************************************************** | |
| 600 * Write expression out to buf, but wrap it | |
| 601 * in ( ) if its precedence is less than pr. | |
| 602 */ | |
| 603 | |
| 604 void expToCBuffer(OutBuffer *buf, HdrGenState *hgs, Expression *e, enum PREC pr) | |
| 605 { | |
| 606 if (precedence[e->op] < pr) | |
| 607 { | |
| 608 buf->writeByte('('); | |
| 609 e->toCBuffer(buf, hgs); | |
| 610 buf->writeByte(')'); | |
| 611 } | |
| 612 else | |
| 613 e->toCBuffer(buf, hgs); | |
| 614 } | |
| 615 | |
| 616 /************************************************** | |
| 617 * Write out argument list to buf. | |
| 618 */ | |
| 619 | |
| 620 void argsToCBuffer(OutBuffer *buf, Expressions *arguments, HdrGenState *hgs) | |
| 621 { | |
| 622 if (arguments) | |
| 623 { | |
| 624 for (size_t i = 0; i < arguments->dim; i++) | |
| 625 { Expression *arg = (Expression *)arguments->data[i]; | |
| 626 | |
| 627 if (arg) | |
| 628 { if (i) | |
| 629 buf->writeByte(','); | |
| 630 expToCBuffer(buf, hgs, arg, PREC_assign); | |
| 631 } | |
| 632 } | |
| 633 } | |
| 634 } | |
| 635 | |
| 636 /************************************************** | |
| 637 * Write out argument types to buf. | |
| 638 */ | |
| 639 | |
| 640 void argExpTypesToCBuffer(OutBuffer *buf, Expressions *arguments, HdrGenState *hgs) | |
| 641 { | |
| 642 if (arguments) | |
| 643 { OutBuffer argbuf; | |
| 644 | |
| 645 for (size_t i = 0; i < arguments->dim; i++) | |
| 646 { Expression *arg = (Expression *)arguments->data[i]; | |
| 647 | |
| 648 if (i) | |
| 649 buf->writeByte(','); | |
| 650 argbuf.reset(); | |
| 651 arg->type->toCBuffer2(&argbuf, hgs, 0); | |
| 652 buf->write(&argbuf); | |
| 653 } | |
| 654 } | |
| 655 } | |
| 656 | |
| 657 /******************************** Expression **************************/ | |
| 658 | |
| 659 Expression::Expression(Loc loc, enum TOK op, int size) | |
| 660 : loc(loc) | |
| 661 { | |
| 662 this->loc = loc; | |
| 663 this->op = op; | |
| 664 this->size = size; | |
| 665 type = NULL; | |
| 666 } | |
| 667 | |
| 668 Expression *Expression::syntaxCopy() | |
| 669 { | |
| 670 //printf("Expression::syntaxCopy()\n"); | |
| 671 //dump(0); | |
| 672 return copy(); | |
| 673 } | |
| 674 | |
| 675 /********************************* | |
| 676 * Does *not* do a deep copy. | |
| 677 */ | |
| 678 | |
| 679 Expression *Expression::copy() | |
| 680 { | |
| 681 Expression *e; | |
| 682 if (!size) | |
| 683 { | |
| 684 #ifdef DEBUG | |
| 685 fprintf(stdmsg, "No expression copy for: %s\n", toChars()); | |
| 686 printf("op = %d\n", op); | |
| 687 dump(0); | |
| 688 #endif | |
| 689 assert(0); | |
| 690 } | |
| 691 e = (Expression *)mem.malloc(size); | |
| 692 return (Expression *)memcpy(e, this, size); | |
| 693 } | |
| 694 | |
| 695 /************************** | |
| 696 * Semantically analyze Expression. | |
| 697 * Determine types, fold constants, etc. | |
| 698 */ | |
| 699 | |
| 700 Expression *Expression::semantic(Scope *sc) | |
| 701 { | |
| 702 #if LOGSEMANTIC | |
| 703 printf("Expression::semantic()\n"); | |
| 704 #endif | |
| 705 if (type) | |
| 706 type = type->semantic(loc, sc); | |
| 707 else | |
| 708 type = Type::tvoid; | |
| 709 return this; | |
| 710 } | |
| 711 | |
| 712 void Expression::print() | |
| 713 { | |
| 714 fprintf(stdmsg, "%s\n", toChars()); | |
| 715 fflush(stdmsg); | |
| 716 } | |
| 717 | |
| 718 char *Expression::toChars() | |
| 719 { OutBuffer *buf; | |
| 720 HdrGenState hgs; | |
| 721 | |
| 722 memset(&hgs, 0, sizeof(hgs)); | |
| 723 buf = new OutBuffer(); | |
| 724 toCBuffer(buf, &hgs); | |
| 725 return buf->toChars(); | |
| 726 } | |
| 727 | |
| 728 void Expression::error(const char *format, ...) | |
| 729 { | |
| 730 va_list ap; | |
| 731 va_start(ap, format); | |
| 732 ::verror(loc, format, ap); | |
| 733 va_end( ap ); | |
| 734 } | |
| 735 | |
| 736 void Expression::rvalue() | |
| 737 { | |
| 738 if (type && type->toBasetype()->ty == Tvoid) | |
| 739 { error("expression %s is void and has no value", toChars()); | |
| 740 #if 0 | |
| 741 dump(0); | |
| 742 halt(); | |
| 743 #endif | |
| 744 } | |
| 745 } | |
| 746 | |
| 747 Expression *Expression::combine(Expression *e1, Expression *e2) | |
| 748 { | |
| 749 if (e1) | |
| 750 { | |
| 751 if (e2) | |
| 752 { | |
| 753 e1 = new CommaExp(e1->loc, e1, e2); | |
| 754 e1->type = e2->type; | |
| 755 } | |
| 756 } | |
| 757 else | |
| 758 e1 = e2; | |
| 759 return e1; | |
| 760 } | |
| 761 | |
| 762 integer_t Expression::toInteger() | |
| 763 { | |
| 764 //printf("Expression %s\n", Token::toChars(op)); | |
| 765 error("Integer constant expression expected instead of %s", toChars()); | |
| 766 return 0; | |
| 767 } | |
| 768 | |
| 769 uinteger_t Expression::toUInteger() | |
| 770 { | |
| 771 //printf("Expression %s\n", Token::toChars(op)); | |
| 772 return (uinteger_t)toInteger(); | |
| 773 } | |
| 774 | |
| 775 real_t Expression::toReal() | |
| 776 { | |
| 777 error("Floating point constant expression expected instead of %s", toChars()); | |
| 778 return 0; | |
| 779 } | |
| 780 | |
| 781 real_t Expression::toImaginary() | |
| 782 { | |
| 783 error("Floating point constant expression expected instead of %s", toChars()); | |
| 784 return 0; | |
| 785 } | |
| 786 | |
| 787 complex_t Expression::toComplex() | |
| 788 { | |
| 789 error("Floating point constant expression expected instead of %s", toChars()); | |
| 790 #ifdef IN_GCC | |
| 791 return complex_t(real_t(0)); // %% nicer | |
| 792 #else | |
| 793 return 0; | |
| 794 #endif | |
| 795 } | |
| 796 | |
| 797 void Expression::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 798 { | |
| 799 buf->writestring(Token::toChars(op)); | |
| 800 } | |
| 801 | |
| 802 void Expression::toMangleBuffer(OutBuffer *buf) | |
| 803 { | |
| 804 error("expression %s is not a valid template value argument", toChars()); | |
| 805 } | |
| 806 | |
| 807 /******************************* | |
| 808 * Give error if we're not an lvalue. | |
| 809 * If we can, convert expression to be an lvalue. | |
| 810 */ | |
| 811 | |
| 812 Expression *Expression::toLvalue(Scope *sc, Expression *e) | |
| 813 { | |
| 814 if (!e) | |
| 815 e = this; | |
| 816 else if (!loc.filename) | |
| 817 loc = e->loc; | |
| 818 error("%s is not an lvalue", e->toChars()); | |
| 819 return this; | |
| 820 } | |
| 821 | |
| 822 Expression *Expression::modifiableLvalue(Scope *sc, Expression *e) | |
| 823 { | |
| 824 // See if this expression is a modifiable lvalue (i.e. not const) | |
| 825 return toLvalue(sc, e); | |
| 826 } | |
| 827 | |
| 828 /************************************ | |
| 829 * Detect cases where pointers to the stack can 'escape' the | |
| 830 * lifetime of the stack frame. | |
| 831 */ | |
| 832 | |
| 833 void Expression::checkEscape() | |
| 834 { | |
| 835 } | |
| 836 | |
| 837 void Expression::checkScalar() | |
| 838 { | |
| 839 if (!type->isscalar()) | |
| 840 error("'%s' is not a scalar, it is a %s", toChars(), type->toChars()); | |
| 841 } | |
| 842 | |
| 843 void Expression::checkNoBool() | |
| 844 { | |
| 845 if (type->toBasetype()->ty == Tbool) | |
| 846 error("operation not allowed on bool '%s'", toChars()); | |
| 847 } | |
| 848 | |
| 849 Expression *Expression::checkIntegral() | |
| 850 { | |
| 851 if (!type->isintegral()) | |
| 852 { error("'%s' is not of integral type, it is a %s", toChars(), type->toChars()); | |
| 853 return new IntegerExp(0); | |
| 854 } | |
| 855 return this; | |
| 856 } | |
| 857 | |
| 858 Expression *Expression::checkArithmetic() | |
| 859 { | |
| 860 if (!type->isintegral() && !type->isfloating()) | |
| 861 { error("'%s' is not of arithmetic type, it is a %s", toChars(), type->toChars()); | |
| 862 return new IntegerExp(0); | |
| 863 } | |
| 864 return this; | |
| 865 } | |
| 866 | |
| 867 void Expression::checkDeprecated(Scope *sc, Dsymbol *s) | |
| 868 { | |
| 869 s->checkDeprecated(loc, sc); | |
| 870 } | |
| 871 | |
| 872 /******************************** | |
| 873 * Check for expressions that have no use. | |
| 874 * Input: | |
| 875 * flag 0 not going to use the result, so issue error message if no | |
| 876 * side effects | |
| 877 * 1 the result of the expression is used, but still check | |
| 878 * for useless subexpressions | |
| 879 * 2 do not issue error messages, just return !=0 if expression | |
| 880 * has side effects | |
| 881 */ | |
| 882 | |
| 883 int Expression::checkSideEffect(int flag) | |
| 884 { | |
| 885 if (flag == 0) | |
| 886 { if (op == TOKimport) | |
| 887 { | |
| 888 error("%s has no effect", toChars()); | |
| 889 } | |
| 890 else | |
| 891 error("%s has no effect in expression (%s)", | |
| 892 Token::toChars(op), toChars()); | |
| 893 } | |
| 894 return 0; | |
| 895 } | |
| 896 | |
| 897 /***************************** | |
| 898 * Check that expression can be tested for true or false. | |
| 899 */ | |
| 900 | |
| 901 Expression *Expression::checkToBoolean() | |
| 902 { | |
| 903 // Default is 'yes' - do nothing | |
| 904 | |
| 905 #ifdef DEBUG | |
| 906 if (!type) | |
| 907 dump(0); | |
| 908 #endif | |
| 909 | |
| 910 if (!type->checkBoolean()) | |
| 911 { | |
| 912 error("expression %s of type %s does not have a boolean value", toChars(), type->toChars()); | |
| 913 } | |
| 914 return this; | |
| 915 } | |
| 916 | |
| 917 /**************************** | |
| 918 */ | |
| 919 | |
| 920 Expression *Expression::checkToPointer() | |
| 921 { | |
| 922 Expression *e; | |
| 923 Type *tb; | |
| 924 | |
| 925 //printf("Expression::checkToPointer()\n"); | |
| 926 e = this; | |
| 927 | |
| 928 // If C static array, convert to pointer | |
| 929 tb = type->toBasetype(); | |
| 930 if (tb->ty == Tsarray) | |
| 931 { TypeSArray *ts = (TypeSArray *)tb; | |
| 932 if (ts->size(loc) == 0) | |
| 933 e = new NullExp(loc); | |
| 934 else | |
| 935 e = new AddrExp(loc, this); | |
| 936 e->type = tb->next->pointerTo(); | |
| 937 } | |
| 938 return e; | |
| 939 } | |
| 940 | |
| 941 /****************************** | |
| 942 * Take address of expression. | |
| 943 */ | |
| 944 | |
| 945 Expression *Expression::addressOf(Scope *sc) | |
| 946 { | |
| 947 Expression *e; | |
| 948 | |
| 949 //printf("Expression::addressOf()\n"); | |
| 950 e = toLvalue(sc, NULL); | |
| 951 e = new AddrExp(loc, e); | |
| 952 e->type = type->pointerTo(); | |
| 953 return e; | |
| 954 } | |
| 955 | |
| 956 /****************************** | |
| 957 * If this is a reference, dereference it. | |
| 958 */ | |
| 959 | |
| 960 Expression *Expression::deref() | |
| 961 { | |
| 962 //printf("Expression::deref()\n"); | |
| 963 if (type->ty == Treference) | |
| 964 { Expression *e; | |
| 965 | |
| 966 e = new PtrExp(loc, this); | |
| 967 e->type = type->next; | |
| 968 return e; | |
| 969 } | |
| 970 return this; | |
| 971 } | |
| 972 | |
| 973 /******************************** | |
| 974 * Does this expression statically evaluate to a boolean TRUE or FALSE? | |
| 975 */ | |
| 976 | |
| 977 int Expression::isBool(int result) | |
| 978 { | |
| 979 return FALSE; | |
| 980 } | |
| 981 | |
| 982 /******************************** | |
| 983 * Does this expression result in either a 1 or a 0? | |
| 984 */ | |
| 985 | |
| 986 int Expression::isBit() | |
| 987 { | |
| 988 return FALSE; | |
| 989 } | |
| 990 | |
| 991 Expressions *Expression::arraySyntaxCopy(Expressions *exps) | |
| 992 { Expressions *a = NULL; | |
| 993 | |
| 994 if (exps) | |
| 995 { | |
| 996 a = new Expressions(); | |
| 997 a->setDim(exps->dim); | |
| 998 for (int i = 0; i < a->dim; i++) | |
| 999 { Expression *e = (Expression *)exps->data[i]; | |
| 1000 | |
| 1001 e = e->syntaxCopy(); | |
| 1002 a->data[i] = e; | |
| 1003 } | |
| 1004 } | |
| 1005 return a; | |
| 1006 } | |
| 1007 | |
| 1008 /******************************** IntegerExp **************************/ | |
| 1009 | |
| 1010 IntegerExp::IntegerExp(Loc loc, integer_t value, Type *type) | |
| 1011 : Expression(loc, TOKint64, sizeof(IntegerExp)) | |
| 1012 { | |
| 1013 //printf("IntegerExp(value = %lld, type = '%s')\n", value, type ? type->toChars() : ""); | |
| 1014 if (type && !type->isscalar()) | |
| 1015 { | |
| 1016 error("integral constant must be scalar type, not %s", type->toChars()); | |
| 1017 type = Type::terror; | |
| 1018 } | |
| 1019 this->type = type; | |
| 1020 this->value = value; | |
| 1021 } | |
| 1022 | |
| 1023 IntegerExp::IntegerExp(integer_t value) | |
| 1024 : Expression(0, TOKint64, sizeof(IntegerExp)) | |
| 1025 { | |
| 1026 this->type = Type::tint32; | |
| 1027 this->value = value; | |
| 1028 } | |
| 1029 | |
| 1030 int IntegerExp::equals(Object *o) | |
| 1031 { IntegerExp *ne; | |
| 1032 | |
| 1033 if (this == o || | |
| 1034 (((Expression *)o)->op == TOKint64 && | |
| 1035 ((ne = (IntegerExp *)o), type->equals(ne->type)) && | |
| 1036 value == ne->value)) | |
| 1037 return 1; | |
| 1038 return 0; | |
| 1039 } | |
| 1040 | |
| 1041 char *IntegerExp::toChars() | |
| 1042 { | |
| 1043 #if 1 | |
| 1044 return Expression::toChars(); | |
| 1045 #else | |
| 1046 static char buffer[sizeof(value) * 3 + 1]; | |
| 1047 | |
| 1048 sprintf(buffer, "%jd", value); | |
| 1049 return buffer; | |
| 1050 #endif | |
| 1051 } | |
| 1052 | |
| 1053 integer_t IntegerExp::toInteger() | |
| 1054 { Type *t; | |
| 1055 | |
| 1056 t = type; | |
| 1057 while (t) | |
| 1058 { | |
| 1059 switch (t->ty) | |
| 1060 { | |
| 1061 case Tbit: | |
| 1062 case Tbool: value = (value != 0); break; | |
| 1063 case Tint8: value = (d_int8) value; break; | |
| 1064 case Tchar: | |
| 1065 case Tuns8: value = (d_uns8) value; break; | |
| 1066 case Tint16: value = (d_int16) value; break; | |
| 1067 case Twchar: | |
| 1068 case Tuns16: value = (d_uns16) value; break; | |
| 1069 case Tint32: value = (d_int32) value; break; | |
| 1070 case Tpointer: | |
| 1071 case Tdchar: | |
| 1072 case Tuns32: value = (d_uns32) value; break; | |
| 1073 case Tint64: value = (d_int64) value; break; | |
| 1074 case Tuns64: value = (d_uns64) value; break; | |
| 1075 | |
| 1076 case Tenum: | |
| 1077 { | |
| 1078 TypeEnum *te = (TypeEnum *)t; | |
| 1079 t = te->sym->memtype; | |
| 1080 continue; | |
| 1081 } | |
| 1082 | |
| 1083 case Ttypedef: | |
| 1084 { | |
| 1085 TypeTypedef *tt = (TypeTypedef *)t; | |
| 1086 t = tt->sym->basetype; | |
| 1087 continue; | |
| 1088 } | |
| 1089 | |
| 1090 default: | |
| 1091 print(); | |
| 1092 type->print(); | |
| 1093 assert(0); | |
| 1094 break; | |
| 1095 } | |
| 1096 break; | |
| 1097 } | |
| 1098 return value; | |
| 1099 } | |
| 1100 | |
| 1101 real_t IntegerExp::toReal() | |
| 1102 { | |
| 1103 Type *t; | |
| 1104 | |
| 1105 toInteger(); | |
| 1106 t = type->toBasetype(); | |
| 1107 if (t->ty == Tuns64) | |
| 1108 return (real_t)(d_uns64)value; | |
| 1109 else | |
| 1110 return (real_t)(d_int64)value; | |
| 1111 } | |
| 1112 | |
| 1113 real_t IntegerExp::toImaginary() | |
| 1114 { | |
| 1115 return (real_t) 0; | |
| 1116 } | |
| 1117 | |
| 1118 complex_t IntegerExp::toComplex() | |
| 1119 { | |
| 1120 return toReal(); | |
| 1121 } | |
| 1122 | |
| 1123 int IntegerExp::isBool(int result) | |
| 1124 { | |
| 1125 return result ? value != 0 : value == 0; | |
| 1126 } | |
| 1127 | |
| 1128 Expression *IntegerExp::semantic(Scope *sc) | |
| 1129 { | |
| 1130 if (!type) | |
| 1131 { | |
| 1132 // Determine what the type of this number is | |
| 1133 integer_t number = value; | |
| 1134 | |
| 1135 if (number & 0x8000000000000000LL) | |
| 1136 type = Type::tuns64; | |
| 1137 else if (number & 0xFFFFFFFF80000000LL) | |
| 1138 type = Type::tint64; | |
| 1139 else | |
| 1140 type = Type::tint32; | |
| 1141 } | |
| 1142 else | |
| 1143 { type = type->semantic(loc, sc); | |
| 1144 } | |
| 1145 return this; | |
| 1146 } | |
| 1147 | |
| 1148 Expression *IntegerExp::toLvalue(Scope *sc, Expression *e) | |
| 1149 { | |
| 1150 if (!e) | |
| 1151 e = this; | |
| 1152 else if (!loc.filename) | |
| 1153 loc = e->loc; | |
| 1154 e->error("constant %s is not an lvalue", e->toChars()); | |
| 1155 return this; | |
| 1156 } | |
| 1157 | |
| 1158 void IntegerExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1159 { | |
| 1160 integer_t v = toInteger(); | |
| 1161 | |
| 1162 if (type) | |
| 1163 { Type *t = type; | |
| 1164 | |
| 1165 L1: | |
| 1166 switch (t->ty) | |
| 1167 { | |
| 1168 case Tenum: | |
| 1169 { TypeEnum *te = (TypeEnum *)t; | |
| 1170 buf->printf("cast(%s)", te->sym->toChars()); | |
| 1171 t = te->sym->memtype; | |
| 1172 goto L1; | |
| 1173 } | |
| 1174 | |
| 1175 case Ttypedef: | |
| 1176 { TypeTypedef *tt = (TypeTypedef *)t; | |
| 1177 buf->printf("cast(%s)", tt->sym->toChars()); | |
| 1178 t = tt->sym->basetype; | |
| 1179 goto L1; | |
| 1180 } | |
| 1181 | |
| 1182 case Twchar: // BUG: need to cast(wchar) | |
| 1183 case Tdchar: // BUG: need to cast(dchar) | |
| 1184 if ((uinteger_t)v > 0xFF) | |
| 1185 { | |
| 1186 buf->printf("'\\U%08x'", v); | |
| 1187 break; | |
| 1188 } | |
| 1189 case Tchar: | |
| 1190 if (v == '\'') | |
| 1191 buf->writestring("'\\''"); | |
| 1192 else if (isprint(v) && v != '\\') | |
| 1193 buf->printf("'%c'", (int)v); | |
| 1194 else | |
| 1195 buf->printf("'\\x%02x'", (int)v); | |
| 1196 break; | |
| 1197 | |
| 1198 case Tint8: | |
| 1199 buf->writestring("cast(byte)"); | |
| 1200 goto L2; | |
| 1201 | |
| 1202 case Tint16: | |
| 1203 buf->writestring("cast(short)"); | |
| 1204 goto L2; | |
| 1205 | |
| 1206 case Tint32: | |
| 1207 L2: | |
| 1208 buf->printf("%d", (int)v); | |
| 1209 break; | |
| 1210 | |
| 1211 case Tuns8: | |
| 1212 buf->writestring("cast(ubyte)"); | |
| 1213 goto L3; | |
| 1214 | |
| 1215 case Tuns16: | |
| 1216 buf->writestring("cast(ushort)"); | |
| 1217 goto L3; | |
| 1218 | |
| 1219 case Tuns32: | |
| 1220 L3: | |
| 1221 buf->printf("%du", (unsigned)v); | |
| 1222 break; | |
| 1223 | |
| 1224 case Tint64: | |
| 1225 buf->printf("%jdL", v); | |
| 1226 break; | |
| 1227 | |
| 1228 case Tuns64: | |
| 1229 buf->printf("%juLU", v); | |
| 1230 break; | |
| 1231 | |
| 1232 case Tbit: | |
| 1233 case Tbool: | |
| 1234 buf->writestring((char *)(v ? "true" : "false")); | |
| 1235 break; | |
| 1236 | |
| 1237 case Tpointer: | |
| 1238 buf->writestring("cast("); | |
| 1239 buf->writestring(t->toChars()); | |
| 1240 buf->writeByte(')'); | |
| 1241 goto L3; | |
| 1242 | |
| 1243 default: | |
| 1244 #ifdef DEBUG | |
| 1245 t->print(); | |
| 1246 #endif | |
| 1247 assert(0); | |
| 1248 } | |
| 1249 } | |
| 1250 else if (v & 0x8000000000000000LL) | |
| 1251 buf->printf("0x%jx", v); | |
| 1252 else | |
| 1253 buf->printf("%jd", v); | |
| 1254 } | |
| 1255 | |
| 1256 void IntegerExp::toMangleBuffer(OutBuffer *buf) | |
| 1257 { | |
| 1258 if ((sinteger_t)value < 0) | |
| 1259 buf->printf("N%jd", -value); | |
| 1260 else | |
| 1261 buf->printf("%jd", value); | |
| 1262 } | |
| 1263 | |
| 1264 /******************************** RealExp **************************/ | |
| 1265 | |
| 1266 RealExp::RealExp(Loc loc, real_t value, Type *type) | |
| 1267 : Expression(loc, TOKfloat64, sizeof(RealExp)) | |
| 1268 { | |
| 1269 //printf("RealExp::RealExp(%Lg)\n", value); | |
| 1270 this->value = value; | |
| 1271 this->type = type; | |
| 1272 } | |
| 1273 | |
| 1274 char *RealExp::toChars() | |
| 1275 { | |
| 1276 char buffer[sizeof(value) * 3 + 8 + 1 + 1]; | |
| 1277 | |
| 1278 #ifdef IN_GCC | |
| 1279 value.format(buffer, sizeof(buffer)); | |
| 1280 if (type->isimaginary()) | |
| 1281 strcat(buffer, "i"); | |
| 1282 #else | |
| 1283 sprintf(buffer, type->isimaginary() ? "%Lgi" : "%Lg", value); | |
| 1284 #endif | |
| 1285 assert(strlen(buffer) < sizeof(buffer)); | |
| 1286 return mem.strdup(buffer); | |
| 1287 } | |
| 1288 | |
| 1289 integer_t RealExp::toInteger() | |
| 1290 { | |
| 1291 #ifdef IN_GCC | |
| 1292 return toReal().toInt(); | |
| 1293 #else | |
| 1294 return (sinteger_t) toReal(); | |
| 1295 #endif | |
| 1296 } | |
| 1297 | |
| 1298 uinteger_t RealExp::toUInteger() | |
| 1299 { | |
| 1300 #ifdef IN_GCC | |
| 1301 return (uinteger_t) toReal().toInt(); | |
| 1302 #else | |
| 1303 return (uinteger_t) toReal(); | |
| 1304 #endif | |
| 1305 } | |
| 1306 | |
| 1307 real_t RealExp::toReal() | |
| 1308 { | |
| 1309 return type->isreal() ? value : 0; | |
| 1310 } | |
| 1311 | |
| 1312 real_t RealExp::toImaginary() | |
| 1313 { | |
| 1314 return type->isreal() ? 0 : value; | |
| 1315 } | |
| 1316 | |
| 1317 complex_t RealExp::toComplex() | |
| 1318 { | |
| 1319 #ifdef __DMC__ | |
| 1320 return toReal() + toImaginary() * I; | |
| 1321 #else | |
| 1322 return complex_t(toReal(), toImaginary()); | |
| 1323 #endif | |
| 1324 } | |
| 1325 | |
| 1326 /******************************** | |
| 1327 * Test to see if two reals are the same. | |
| 1328 * Regard NaN's as equivalent. | |
| 1329 * Regard +0 and -0 as different. | |
| 1330 */ | |
| 1331 | |
| 1332 int RealEquals(real_t x1, real_t x2) | |
| 1333 { | |
| 1334 return (isnan(x1) && isnan(x2)) || | |
| 1335 /* In some cases, the REALPAD bytes get garbage in them, | |
| 1336 * so be sure and ignore them. | |
| 1337 */ | |
| 1338 memcmp(&x1, &x2, REALSIZE - REALPAD) == 0; | |
| 1339 } | |
| 1340 | |
| 1341 int RealExp::equals(Object *o) | |
| 1342 { RealExp *ne; | |
| 1343 | |
| 1344 if (this == o || | |
| 1345 (((Expression *)o)->op == TOKfloat64 && | |
| 1346 ((ne = (RealExp *)o), type->equals(ne->type)) && | |
| 1347 RealEquals(value, ne->value) | |
| 1348 ) | |
| 1349 ) | |
| 1350 return 1; | |
| 1351 return 0; | |
| 1352 } | |
| 1353 | |
| 1354 Expression *RealExp::semantic(Scope *sc) | |
| 1355 { | |
| 1356 if (!type) | |
| 1357 type = Type::tfloat64; | |
| 1358 else | |
| 1359 type = type->semantic(loc, sc); | |
| 1360 return this; | |
| 1361 } | |
| 1362 | |
| 1363 int RealExp::isBool(int result) | |
| 1364 { | |
| 1365 #ifdef IN_GCC | |
| 1366 return result ? (! value.isZero()) : (value.isZero()); | |
| 1367 #else | |
| 1368 return result ? (value != 0) | |
| 1369 : (value == 0); | |
| 1370 #endif | |
| 1371 } | |
| 1372 | |
| 1373 void floatToBuffer(OutBuffer *buf, Type *type, real_t value) | |
| 1374 { | |
| 1375 /* In order to get an exact representation, try converting it | |
| 1376 * to decimal then back again. If it matches, use it. | |
| 1377 * If it doesn't, fall back to hex, which is | |
| 1378 * always exact. | |
| 1379 */ | |
| 1380 char buffer[25]; | |
| 1381 sprintf(buffer, "%Lg", value); | |
| 1382 assert(strlen(buffer) < sizeof(buffer)); | |
| 1383 #if _WIN32 && __DMC__ | |
| 1384 char *save = __locale_decpoint; | |
| 1385 __locale_decpoint = "."; | |
| 1386 real_t r = strtold(buffer, NULL); | |
| 1387 __locale_decpoint = save; | |
| 1388 #else | |
| 1389 real_t r = strtold(buffer, NULL); | |
| 1390 #endif | |
| 1391 if (r == value) // if exact duplication | |
| 1392 buf->writestring(buffer); | |
| 1393 else | |
| 1394 buf->printf("%La", value); // ensure exact duplication | |
| 1395 | |
| 1396 if (type) | |
| 1397 { | |
| 1398 Type *t = type->toBasetype(); | |
| 1399 switch (t->ty) | |
| 1400 { | |
| 1401 case Tfloat32: | |
| 1402 case Timaginary32: | |
| 1403 case Tcomplex32: | |
| 1404 buf->writeByte('F'); | |
| 1405 break; | |
| 1406 | |
| 1407 case Tfloat80: | |
| 1408 case Timaginary80: | |
| 1409 case Tcomplex80: | |
| 1410 buf->writeByte('L'); | |
| 1411 break; | |
| 1412 | |
| 1413 default: | |
| 1414 break; | |
| 1415 } | |
| 1416 if (t->isimaginary()) | |
| 1417 buf->writeByte('i'); | |
| 1418 } | |
| 1419 } | |
| 1420 | |
| 1421 void RealExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1422 { | |
| 1423 floatToBuffer(buf, type, value); | |
| 1424 } | |
| 1425 | |
| 1426 void realToMangleBuffer(OutBuffer *buf, real_t value) | |
| 1427 { | |
| 1428 /* Rely on %A to get portable mangling. | |
| 1429 * Must munge result to get only identifier characters. | |
| 1430 * | |
| 1431 * Possible values from %A => mangled result | |
| 1432 * NAN => NAN | |
| 1433 * -INF => NINF | |
| 1434 * INF => INF | |
| 1435 * -0X1.1BC18BA997B95P+79 => N11BC18BA997B95P79 | |
| 1436 * 0X1.9P+2 => 19P2 | |
| 1437 */ | |
| 1438 | |
| 1439 if (isnan(value)) | |
| 1440 buf->writestring("NAN"); // no -NAN bugs | |
| 1441 else | |
| 1442 { | |
| 1443 char buffer[32]; | |
| 1444 int n = sprintf(buffer, "%LA", value); | |
| 1445 assert(n > 0 && n < sizeof(buffer)); | |
| 1446 for (int i = 0; i < n; i++) | |
| 1447 { char c = buffer[i]; | |
| 1448 | |
| 1449 switch (c) | |
| 1450 { | |
| 1451 case '-': | |
| 1452 buf->writeByte('N'); | |
| 1453 break; | |
| 1454 | |
| 1455 case '+': | |
| 1456 case 'X': | |
| 1457 case '.': | |
| 1458 break; | |
| 1459 | |
| 1460 case '0': | |
| 1461 if (i < 2) | |
| 1462 break; // skip leading 0X | |
| 1463 default: | |
| 1464 buf->writeByte(c); | |
| 1465 break; | |
| 1466 } | |
| 1467 } | |
| 1468 } | |
| 1469 } | |
| 1470 | |
| 1471 void RealExp::toMangleBuffer(OutBuffer *buf) | |
| 1472 { | |
| 1473 buf->writeByte('e'); | |
| 1474 realToMangleBuffer(buf, value); | |
| 1475 } | |
| 1476 | |
| 1477 | |
| 1478 /******************************** ComplexExp **************************/ | |
| 1479 | |
| 1480 ComplexExp::ComplexExp(Loc loc, complex_t value, Type *type) | |
| 1481 : Expression(loc, TOKcomplex80, sizeof(ComplexExp)) | |
| 1482 { | |
| 1483 this->value = value; | |
| 1484 this->type = type; | |
| 1485 //printf("ComplexExp::ComplexExp(%s)\n", toChars()); | |
| 1486 } | |
| 1487 | |
| 1488 char *ComplexExp::toChars() | |
| 1489 { | |
| 1490 char buffer[sizeof(value) * 3 + 8 + 1]; | |
| 1491 | |
| 1492 #ifdef IN_GCC | |
| 1493 char buf1[sizeof(value) * 3 + 8 + 1]; | |
| 1494 char buf2[sizeof(value) * 3 + 8 + 1]; | |
| 1495 creall(value).format(buf1, sizeof(buf1)); | |
| 1496 cimagl(value).format(buf2, sizeof(buf2)); | |
| 1497 sprintf(buffer, "(%s+%si)", buf1, buf2); | |
| 1498 #else | |
| 1499 sprintf(buffer, "(%Lg+%Lgi)", creall(value), cimagl(value)); | |
| 1500 assert(strlen(buffer) < sizeof(buffer)); | |
| 1501 #endif | |
| 1502 return mem.strdup(buffer); | |
| 1503 } | |
| 1504 | |
| 1505 integer_t ComplexExp::toInteger() | |
| 1506 { | |
| 1507 #ifdef IN_GCC | |
| 1508 return (sinteger_t) toReal().toInt(); | |
| 1509 #else | |
| 1510 return (sinteger_t) toReal(); | |
| 1511 #endif | |
| 1512 } | |
| 1513 | |
| 1514 uinteger_t ComplexExp::toUInteger() | |
| 1515 { | |
| 1516 #ifdef IN_GCC | |
| 1517 return (uinteger_t) toReal().toInt(); | |
| 1518 #else | |
| 1519 return (uinteger_t) toReal(); | |
| 1520 #endif | |
| 1521 } | |
| 1522 | |
| 1523 real_t ComplexExp::toReal() | |
| 1524 { | |
| 1525 return creall(value); | |
| 1526 } | |
| 1527 | |
| 1528 real_t ComplexExp::toImaginary() | |
| 1529 { | |
| 1530 return cimagl(value); | |
| 1531 } | |
| 1532 | |
| 1533 complex_t ComplexExp::toComplex() | |
| 1534 { | |
| 1535 return value; | |
| 1536 } | |
| 1537 | |
| 1538 int ComplexExp::equals(Object *o) | |
| 1539 { ComplexExp *ne; | |
| 1540 | |
| 1541 if (this == o || | |
| 1542 (((Expression *)o)->op == TOKcomplex80 && | |
| 1543 ((ne = (ComplexExp *)o), type->equals(ne->type)) && | |
| 1544 RealEquals(creall(value), creall(ne->value)) && | |
| 1545 RealEquals(cimagl(value), cimagl(ne->value)) | |
| 1546 ) | |
| 1547 ) | |
| 1548 return 1; | |
| 1549 return 0; | |
| 1550 } | |
| 1551 | |
| 1552 Expression *ComplexExp::semantic(Scope *sc) | |
| 1553 { | |
| 1554 if (!type) | |
| 1555 type = Type::tcomplex80; | |
| 1556 else | |
| 1557 type = type->semantic(loc, sc); | |
| 1558 return this; | |
| 1559 } | |
| 1560 | |
| 1561 int ComplexExp::isBool(int result) | |
| 1562 { | |
| 1563 if (result) | |
| 1564 return (bool)(value); | |
| 1565 else | |
| 1566 return !value; | |
| 1567 } | |
| 1568 | |
| 1569 void ComplexExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1570 { | |
| 1571 /* Print as: | |
| 1572 * (re+imi) | |
| 1573 */ | |
| 1574 #ifdef IN_GCC | |
| 1575 char buf1[sizeof(value) * 3 + 8 + 1]; | |
| 1576 char buf2[sizeof(value) * 3 + 8 + 1]; | |
| 1577 creall(value).format(buf1, sizeof(buf1)); | |
| 1578 cimagl(value).format(buf2, sizeof(buf2)); | |
| 1579 buf->printf("(%s+%si)", buf1, buf2); | |
| 1580 #else | |
| 1581 buf->writeByte('('); | |
| 1582 floatToBuffer(buf, type, creall(value)); | |
| 1583 buf->writeByte('+'); | |
| 1584 floatToBuffer(buf, type, cimagl(value)); | |
| 1585 buf->writestring("i)"); | |
| 1586 #endif | |
| 1587 } | |
| 1588 | |
| 1589 void ComplexExp::toMangleBuffer(OutBuffer *buf) | |
| 1590 { | |
| 1591 buf->writeByte('c'); | |
| 1592 real_t r = toReal(); | |
| 1593 realToMangleBuffer(buf, r); | |
| 1594 buf->writeByte('c'); // separate the two | |
| 1595 r = toImaginary(); | |
| 1596 realToMangleBuffer(buf, r); | |
| 1597 } | |
| 1598 | |
| 1599 /******************************** IdentifierExp **************************/ | |
| 1600 | |
| 1601 IdentifierExp::IdentifierExp(Loc loc, Identifier *ident) | |
| 1602 : Expression(loc, TOKidentifier, sizeof(IdentifierExp)) | |
| 1603 { | |
| 1604 this->ident = ident; | |
| 1605 } | |
| 1606 | |
| 1607 Expression *IdentifierExp::semantic(Scope *sc) | |
| 1608 { | |
| 1609 Dsymbol *s; | |
| 1610 Dsymbol *scopesym; | |
| 1611 | |
| 1612 #if LOGSEMANTIC | |
| 1613 printf("IdentifierExp::semantic('%s')\n", ident->toChars()); | |
| 1614 #endif | |
| 1615 s = sc->search(loc, ident, &scopesym); | |
| 1616 if (s) | |
| 1617 { Expression *e; | |
| 1618 WithScopeSymbol *withsym; | |
| 1619 | |
| 1620 // See if it was a with class | |
| 1621 withsym = scopesym->isWithScopeSymbol(); | |
| 1622 if (withsym) | |
| 1623 { | |
| 1624 s = s->toAlias(); | |
| 1625 | |
| 1626 // Same as wthis.ident | |
| 1627 if (s->needThis() || s->isTemplateDeclaration()) | |
| 1628 { | |
| 1629 e = new VarExp(loc, withsym->withstate->wthis); | |
| 1630 e = new DotIdExp(loc, e, ident); | |
| 1631 } | |
| 1632 else | |
| 1633 { Type *t = withsym->withstate->wthis->type; | |
| 1634 if (t->ty == Tpointer) | |
| 1635 t = t->next; | |
| 1636 e = new TypeDotIdExp(loc, t, ident); | |
| 1637 } | |
| 1638 } | |
| 1639 else | |
| 1640 { | |
| 1641 if (!s->parent && scopesym->isArrayScopeSymbol()) | |
| 1642 { // Kludge to run semantic() here because | |
| 1643 // ArrayScopeSymbol::search() doesn't have access to sc. | |
| 1644 s->semantic(sc); | |
| 1645 } | |
| 1646 // Look to see if f is really a function template | |
| 1647 FuncDeclaration *f = s->isFuncDeclaration(); | |
| 1648 if (f && f->parent) | |
| 1649 { TemplateInstance *ti = f->parent->isTemplateInstance(); | |
| 1650 | |
| 1651 if (ti && | |
| 1652 !ti->isTemplateMixin() && | |
| 1653 (ti->name == f->ident || | |
| 1654 ti->toAlias()->ident == f->ident) | |
| 1655 && | |
| 1656 ti->tempdecl && ti->tempdecl->onemember) | |
| 1657 { | |
| 1658 TemplateDeclaration *tempdecl = ti->tempdecl; | |
| 1659 if (tempdecl->overroot) // if not start of overloaded list of TemplateDeclaration's | |
| 1660 tempdecl = tempdecl->overroot; // then get the start | |
| 1661 e = new TemplateExp(loc, tempdecl); | |
| 1662 e = e->semantic(sc); | |
| 1663 return e; | |
| 1664 } | |
| 1665 } | |
| 1666 e = new DsymbolExp(loc, s); | |
| 1667 } | |
| 1668 return e->semantic(sc); | |
| 1669 } | |
| 1670 error("undefined identifier %s", ident->toChars()); | |
| 1671 type = Type::terror; | |
| 1672 return this; | |
| 1673 } | |
| 1674 | |
| 1675 char *IdentifierExp::toChars() | |
| 1676 { | |
| 1677 return ident->toChars(); | |
| 1678 } | |
| 1679 | |
| 1680 void IdentifierExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1681 { | |
| 1682 if (hgs->hdrgen) | |
| 1683 buf->writestring(ident->toHChars2()); | |
| 1684 else | |
| 1685 buf->writestring(ident->toChars()); | |
| 1686 } | |
| 1687 | |
| 1688 Expression *IdentifierExp::toLvalue(Scope *sc, Expression *e) | |
| 1689 { | |
| 1690 #if 0 | |
| 1691 tym = tybasic(e1->ET->Tty); | |
| 1692 if (!(tyscalar(tym) || | |
| 1693 tym == TYstruct || | |
| 1694 tym == TYarray && e->Eoper == TOKaddr)) | |
| 1695 synerr(EM_lvalue); // lvalue expected | |
| 1696 #endif | |
| 1697 return this; | |
| 1698 } | |
| 1699 | |
| 1700 /******************************** DollarExp **************************/ | |
| 1701 | |
| 1702 DollarExp::DollarExp(Loc loc) | |
| 1703 : IdentifierExp(loc, Id::dollar) | |
| 1704 { | |
| 1705 } | |
| 1706 | |
| 1707 /******************************** DsymbolExp **************************/ | |
| 1708 | |
| 1709 DsymbolExp::DsymbolExp(Loc loc, Dsymbol *s) | |
| 1710 : Expression(loc, TOKdsymbol, sizeof(DsymbolExp)) | |
| 1711 { | |
| 1712 this->s = s; | |
| 1713 } | |
| 1714 | |
| 1715 Expression *DsymbolExp::semantic(Scope *sc) | |
| 1716 { | |
| 1717 #if LOGSEMANTIC | |
| 1718 printf("DsymbolExp::semantic('%s')\n", s->toChars()); | |
| 1719 #endif | |
| 1720 | |
| 1721 Lagain: | |
| 1722 EnumMember *em; | |
| 1723 Expression *e; | |
| 1724 VarDeclaration *v; | |
| 1725 FuncDeclaration *f; | |
| 1726 FuncLiteralDeclaration *fld; | |
| 1727 Declaration *d; | |
| 1728 ClassDeclaration *cd; | |
| 1729 ClassDeclaration *thiscd = NULL; | |
| 1730 Import *imp; | |
| 1731 Package *pkg; | |
| 1732 Type *t; | |
| 1733 | |
| 1734 //printf("DsymbolExp:: %p '%s' is a symbol\n", this, toChars()); | |
| 1735 //printf("s = '%s', s->kind = '%s'\n", s->toChars(), s->kind()); | |
| 1736 if (type) | |
| 1737 return this; | |
| 1738 if (!s->isFuncDeclaration()) // functions are checked after overloading | |
| 1739 checkDeprecated(sc, s); | |
| 1740 s = s->toAlias(); | |
| 1741 //printf("s = '%s', s->kind = '%s', s->needThis() = %p\n", s->toChars(), s->kind(), s->needThis()); | |
| 1742 if (!s->isFuncDeclaration()) | |
| 1743 checkDeprecated(sc, s); | |
| 1744 | |
| 1745 if (sc->func) | |
| 1746 thiscd = sc->func->parent->isClassDeclaration(); | |
| 1747 | |
| 1748 // BUG: This should happen after overload resolution for functions, not before | |
| 1749 if (s->needThis()) | |
| 1750 { | |
| 1751 if (hasThis(sc) /*&& !s->isFuncDeclaration()*/) | |
| 1752 { | |
| 1753 // Supply an implicit 'this', as in | |
| 1754 // this.ident | |
| 1755 | |
| 1756 DotVarExp *de; | |
| 1757 | |
| 1758 de = new DotVarExp(loc, new ThisExp(loc), s->isDeclaration()); | |
| 1759 return de->semantic(sc); | |
| 1760 } | |
| 1761 } | |
| 1762 | |
| 1763 em = s->isEnumMember(); | |
| 1764 if (em) | |
| 1765 { | |
| 1766 e = em->value->copy(); | |
| 1767 e = e->semantic(sc); | |
| 1768 return e; | |
| 1769 } | |
| 1770 v = s->isVarDeclaration(); | |
| 1771 if (v) | |
| 1772 { | |
| 1773 //printf("Identifier '%s' is a variable, type '%s'\n", toChars(), v->type->toChars()); | |
| 1774 if (!type) | |
| 1775 { type = v->type; | |
| 1776 if (!v->type) | |
| 1777 { error("forward reference of %s", v->toChars()); | |
| 1778 type = Type::terror; | |
| 1779 } | |
| 1780 } | |
| 1781 if (v->isConst() && type->toBasetype()->ty != Tsarray) | |
| 1782 { | |
| 1783 if (v->init) | |
| 1784 { | |
| 1785 if (v->inuse) | |
| 1786 { | |
| 1787 error("circular reference to '%s'", v->toChars()); | |
| 1788 type = Type::tint32; | |
| 1789 return this; | |
| 1790 } | |
| 1791 ExpInitializer *ei = v->init->isExpInitializer(); | |
| 1792 if (ei) | |
| 1793 { | |
| 1794 e = ei->exp->copy(); // make copy so we can change loc | |
| 1795 if (e->op == TOKstring || !e->type) | |
| 1796 e = e->semantic(sc); | |
| 1797 e = e->implicitCastTo(sc, type); | |
| 1798 e->loc = loc; | |
| 1799 return e; | |
| 1800 } | |
| 1801 } | |
| 1802 else | |
| 1803 { | |
| 1804 e = type->defaultInit(); | |
| 1805 e->loc = loc; | |
| 1806 return e; | |
| 1807 } | |
| 1808 } | |
| 1809 e = new VarExp(loc, v); | |
| 1810 e->type = type; | |
| 1811 e = e->semantic(sc); | |
| 1812 return e->deref(); | |
| 1813 } | |
| 1814 fld = s->isFuncLiteralDeclaration(); | |
| 1815 if (fld) | |
| 1816 { //printf("'%s' is a function literal\n", fld->toChars()); | |
| 1817 e = new FuncExp(loc, fld); | |
| 1818 return e->semantic(sc); | |
| 1819 } | |
| 1820 f = s->isFuncDeclaration(); | |
| 1821 if (f) | |
| 1822 { //printf("'%s' is a function\n", f->toChars()); | |
| 1823 return new VarExp(loc, f); | |
| 1824 } | |
| 1825 cd = s->isClassDeclaration(); | |
| 1826 if (cd && thiscd && cd->isBaseOf(thiscd, NULL) && sc->func->needThis()) | |
| 1827 { | |
| 1828 // We need to add an implicit 'this' if cd is this class or a base class. | |
| 1829 DotTypeExp *dte; | |
| 1830 | |
| 1831 dte = new DotTypeExp(loc, new ThisExp(loc), s); | |
| 1832 return dte->semantic(sc); | |
| 1833 } | |
| 1834 imp = s->isImport(); | |
| 1835 if (imp) | |
| 1836 { | |
| 1837 ScopeExp *ie; | |
| 1838 | |
| 1839 ie = new ScopeExp(loc, imp->pkg); | |
| 1840 return ie->semantic(sc); | |
| 1841 } | |
| 1842 pkg = s->isPackage(); | |
| 1843 if (pkg) | |
| 1844 { | |
| 1845 ScopeExp *ie; | |
| 1846 | |
| 1847 ie = new ScopeExp(loc, pkg); | |
| 1848 return ie->semantic(sc); | |
| 1849 } | |
| 1850 Module *mod = s->isModule(); | |
| 1851 if (mod) | |
| 1852 { | |
| 1853 ScopeExp *ie; | |
| 1854 | |
| 1855 ie = new ScopeExp(loc, mod); | |
| 1856 return ie->semantic(sc); | |
| 1857 } | |
| 1858 | |
| 1859 t = s->getType(); | |
| 1860 if (t) | |
| 1861 { | |
| 1862 return new TypeExp(loc, t); | |
| 1863 } | |
| 1864 | |
| 1865 TupleDeclaration *tup = s->isTupleDeclaration(); | |
| 1866 if (tup) | |
| 1867 { | |
| 1868 e = new TupleExp(loc, tup); | |
| 1869 e = e->semantic(sc); | |
| 1870 return e; | |
| 1871 } | |
| 1872 | |
| 1873 TemplateInstance *ti = s->isTemplateInstance(); | |
| 1874 if (ti && !global.errors) | |
| 1875 { if (!ti->semanticdone) | |
| 1876 ti->semantic(sc); | |
| 1877 s = ti->inst->toAlias(); | |
| 1878 if (!s->isTemplateInstance()) | |
| 1879 goto Lagain; | |
| 1880 e = new ScopeExp(loc, ti); | |
| 1881 e = e->semantic(sc); | |
| 1882 return e; | |
| 1883 } | |
| 1884 | |
| 1885 TemplateDeclaration *td = s->isTemplateDeclaration(); | |
| 1886 if (td) | |
| 1887 { | |
| 1888 e = new TemplateExp(loc, td); | |
| 1889 e = e->semantic(sc); | |
| 1890 return e; | |
| 1891 } | |
| 1892 | |
| 1893 Lerr: | |
| 1894 error("%s '%s' is not a variable", s->kind(), s->toChars()); | |
| 1895 type = Type::terror; | |
| 1896 return this; | |
| 1897 } | |
| 1898 | |
| 1899 char *DsymbolExp::toChars() | |
| 1900 { | |
| 1901 return s->toChars(); | |
| 1902 } | |
| 1903 | |
| 1904 void DsymbolExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1905 { | |
| 1906 buf->writestring(s->toChars()); | |
| 1907 } | |
| 1908 | |
| 1909 Expression *DsymbolExp::toLvalue(Scope *sc, Expression *e) | |
| 1910 { | |
| 1911 #if 0 | |
| 1912 tym = tybasic(e1->ET->Tty); | |
| 1913 if (!(tyscalar(tym) || | |
| 1914 tym == TYstruct || | |
| 1915 tym == TYarray && e->Eoper == TOKaddr)) | |
| 1916 synerr(EM_lvalue); // lvalue expected | |
| 1917 #endif | |
| 1918 return this; | |
| 1919 } | |
| 1920 | |
| 1921 /******************************** ThisExp **************************/ | |
| 1922 | |
| 1923 ThisExp::ThisExp(Loc loc) | |
| 1924 : Expression(loc, TOKthis, sizeof(ThisExp)) | |
| 1925 { | |
| 1926 var = NULL; | |
| 1927 } | |
| 1928 | |
| 1929 Expression *ThisExp::semantic(Scope *sc) | |
| 1930 { FuncDeclaration *fd; | |
| 1931 FuncDeclaration *fdthis; | |
| 1932 int nested = 0; | |
| 1933 | |
| 1934 #if LOGSEMANTIC | |
| 1935 printf("ThisExp::semantic()\n"); | |
| 1936 #endif | |
| 1937 if (type) | |
| 1938 { //assert(global.errors || var); | |
| 1939 return this; | |
| 1940 } | |
| 1941 | |
| 1942 /* Special case for typeof(this) and typeof(super) since both | |
| 1943 * should work even if they are not inside a non-static member function | |
| 1944 */ | |
| 1945 if (sc->intypeof) | |
| 1946 { | |
| 1947 // Find enclosing struct or class | |
| 1948 for (Dsymbol *s = sc->parent; 1; s = s->parent) | |
| 1949 { | |
| 1950 ClassDeclaration *cd; | |
| 1951 StructDeclaration *sd; | |
| 1952 | |
| 1953 if (!s) | |
| 1954 { | |
| 1955 error("%s is not in a struct or class scope", toChars()); | |
| 1956 goto Lerr; | |
| 1957 } | |
| 1958 cd = s->isClassDeclaration(); | |
| 1959 if (cd) | |
| 1960 { | |
| 1961 type = cd->type; | |
| 1962 return this; | |
| 1963 } | |
| 1964 sd = s->isStructDeclaration(); | |
| 1965 if (sd) | |
| 1966 { | |
| 1967 type = sd->type->pointerTo(); | |
| 1968 return this; | |
| 1969 } | |
| 1970 } | |
| 1971 } | |
| 1972 | |
| 1973 fdthis = sc->parent->isFuncDeclaration(); | |
| 1974 fd = hasThis(sc); // fd is the uplevel function with the 'this' variable | |
| 1975 if (!fd) | |
| 1976 goto Lerr; | |
| 1977 | |
| 1978 assert(fd->vthis); | |
| 1979 var = fd->vthis; | |
| 1980 assert(var->parent); | |
| 1981 type = var->type; | |
| 1982 var->isVarDeclaration()->checkNestedReference(sc, loc); | |
| 1983 #if 0 | |
| 1984 if (fd != fdthis) // if nested | |
| 1985 { | |
| 1986 fdthis->getLevel(loc, fd); | |
| 1987 fd->vthis->nestedref = 1; | |
| 1988 fd->nestedFrameRef = 1; | |
| 1989 } | |
| 1990 #endif | |
| 1991 sc->callSuper |= CSXthis; | |
| 1992 return this; | |
| 1993 | |
| 1994 Lerr: | |
| 1995 error("'this' is only allowed in non-static member functions, not %s", sc->parent->toChars()); | |
| 1996 type = Type::tint32; | |
| 1997 return this; | |
| 1998 } | |
| 1999 | |
| 2000 int ThisExp::isBool(int result) | |
| 2001 { | |
| 2002 return result ? TRUE : FALSE; | |
| 2003 } | |
| 2004 | |
| 2005 void ThisExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2006 { | |
| 2007 buf->writestring("this"); | |
| 2008 } | |
| 2009 | |
| 2010 Expression *ThisExp::toLvalue(Scope *sc, Expression *e) | |
| 2011 { | |
| 2012 return this; | |
| 2013 } | |
| 2014 | |
| 2015 /******************************** SuperExp **************************/ | |
| 2016 | |
| 2017 SuperExp::SuperExp(Loc loc) | |
| 2018 : ThisExp(loc) | |
| 2019 { | |
| 2020 op = TOKsuper; | |
| 2021 } | |
| 2022 | |
| 2023 Expression *SuperExp::semantic(Scope *sc) | |
| 2024 { FuncDeclaration *fd; | |
| 2025 FuncDeclaration *fdthis; | |
| 2026 ClassDeclaration *cd; | |
| 2027 Dsymbol *s; | |
| 2028 | |
| 2029 #if LOGSEMANTIC | |
| 2030 printf("SuperExp::semantic('%s')\n", toChars()); | |
| 2031 #endif | |
| 2032 if (type) | |
| 2033 return this; | |
| 2034 | |
| 2035 /* Special case for typeof(this) and typeof(super) since both | |
| 2036 * should work even if they are not inside a non-static member function | |
| 2037 */ | |
| 2038 if (sc->intypeof) | |
| 2039 { | |
| 2040 // Find enclosing class | |
| 2041 for (Dsymbol *s = sc->parent; 1; s = s->parent) | |
| 2042 { | |
| 2043 ClassDeclaration *cd; | |
| 2044 | |
| 2045 if (!s) | |
| 2046 { | |
| 2047 error("%s is not in a class scope", toChars()); | |
| 2048 goto Lerr; | |
| 2049 } | |
| 2050 cd = s->isClassDeclaration(); | |
| 2051 if (cd) | |
| 2052 { | |
| 2053 cd = cd->baseClass; | |
| 2054 if (!cd) | |
| 2055 { error("class %s has no 'super'", s->toChars()); | |
| 2056 goto Lerr; | |
| 2057 } | |
| 2058 type = cd->type; | |
| 2059 return this; | |
| 2060 } | |
| 2061 } | |
| 2062 } | |
| 2063 | |
| 2064 fdthis = sc->parent->isFuncDeclaration(); | |
| 2065 fd = hasThis(sc); | |
| 2066 if (!fd) | |
| 2067 goto Lerr; | |
| 2068 assert(fd->vthis); | |
| 2069 var = fd->vthis; | |
| 2070 assert(var->parent); | |
| 2071 | |
| 2072 s = fd->toParent(); | |
| 2073 while (s && s->isTemplateInstance()) | |
| 2074 s = s->toParent(); | |
| 2075 assert(s); | |
| 2076 cd = s->isClassDeclaration(); | |
| 2077 //printf("parent is %s %s\n", fd->toParent()->kind(), fd->toParent()->toChars()); | |
| 2078 if (!cd) | |
| 2079 goto Lerr; | |
| 2080 if (!cd->baseClass) | |
| 2081 { | |
| 2082 error("no base class for %s", cd->toChars()); | |
| 2083 type = fd->vthis->type; | |
| 2084 } | |
| 2085 else | |
| 2086 { | |
| 2087 type = cd->baseClass->type; | |
| 2088 } | |
| 2089 | |
| 2090 var->isVarDeclaration()->checkNestedReference(sc, loc); | |
| 2091 #if 0 | |
| 2092 if (fd != fdthis) | |
| 2093 { | |
| 2094 fdthis->getLevel(loc, fd); | |
| 2095 fd->vthis->nestedref = 1; | |
| 2096 fd->nestedFrameRef = 1; | |
| 2097 } | |
| 2098 #endif | |
| 2099 | |
| 2100 sc->callSuper |= CSXsuper; | |
| 2101 return this; | |
| 2102 | |
| 2103 | |
| 2104 Lerr: | |
| 2105 error("'super' is only allowed in non-static class member functions"); | |
| 2106 type = Type::tint32; | |
| 2107 return this; | |
| 2108 } | |
| 2109 | |
| 2110 void SuperExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2111 { | |
| 2112 buf->writestring("super"); | |
| 2113 } | |
| 2114 | |
| 2115 | |
| 2116 /******************************** NullExp **************************/ | |
| 2117 | |
| 2118 NullExp::NullExp(Loc loc) | |
| 2119 : Expression(loc, TOKnull, sizeof(NullExp)) | |
| 2120 { | |
| 2121 committed = 0; | |
| 2122 } | |
| 2123 | |
| 2124 Expression *NullExp::semantic(Scope *sc) | |
| 2125 { | |
| 2126 #if LOGSEMANTIC | |
| 2127 printf("NullExp::semantic('%s')\n", toChars()); | |
| 2128 #endif | |
| 2129 // NULL is the same as (void *)0 | |
| 2130 if (!type) | |
| 2131 type = Type::tvoid->pointerTo(); | |
| 2132 return this; | |
| 2133 } | |
| 2134 | |
| 2135 int NullExp::isBool(int result) | |
| 2136 { | |
| 2137 return result ? FALSE : TRUE; | |
| 2138 } | |
| 2139 | |
| 2140 void NullExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2141 { | |
| 2142 buf->writestring("null"); | |
| 2143 } | |
| 2144 | |
| 2145 void NullExp::toMangleBuffer(OutBuffer *buf) | |
| 2146 { | |
| 2147 buf->writeByte('n'); | |
| 2148 } | |
| 2149 | |
| 2150 /******************************** StringExp **************************/ | |
| 2151 | |
| 2152 StringExp::StringExp(Loc loc, char *string) | |
| 2153 : Expression(loc, TOKstring, sizeof(StringExp)) | |
| 2154 { | |
| 2155 this->string = string; | |
| 2156 this->len = strlen(string); | |
| 2157 this->sz = 1; | |
| 2158 this->committed = 0; | |
| 2159 this->postfix = 0; | |
| 2160 } | |
| 2161 | |
| 2162 StringExp::StringExp(Loc loc, void *string, size_t len) | |
| 2163 : Expression(loc, TOKstring, sizeof(StringExp)) | |
| 2164 { | |
| 2165 this->string = string; | |
| 2166 this->len = len; | |
| 2167 this->sz = 1; | |
| 2168 this->committed = 0; | |
| 2169 this->postfix = 0; | |
| 2170 } | |
| 2171 | |
| 2172 StringExp::StringExp(Loc loc, void *string, size_t len, unsigned char postfix) | |
| 2173 : Expression(loc, TOKstring, sizeof(StringExp)) | |
| 2174 { | |
| 2175 this->string = string; | |
| 2176 this->len = len; | |
| 2177 this->sz = 1; | |
| 2178 this->committed = 0; | |
| 2179 this->postfix = postfix; | |
| 2180 } | |
| 2181 | |
| 2182 #if 0 | |
| 2183 Expression *StringExp::syntaxCopy() | |
| 2184 { | |
| 2185 printf("StringExp::syntaxCopy() %s\n", toChars()); | |
| 2186 return copy(); | |
| 2187 } | |
| 2188 #endif | |
| 2189 | |
| 2190 int StringExp::equals(Object *o) | |
| 2191 { | |
| 2192 //printf("StringExp::equals('%s')\n", o->toChars()); | |
| 2193 if (o && o->dyncast() == DYNCAST_EXPRESSION) | |
| 2194 { Expression *e = (Expression *)o; | |
| 2195 | |
| 2196 if (e->op == TOKstring) | |
| 2197 { | |
| 2198 return compare(o) == 0; | |
| 2199 } | |
| 2200 } | |
| 2201 return FALSE; | |
| 2202 } | |
| 2203 | |
| 2204 char *StringExp::toChars() | |
| 2205 { | |
| 2206 OutBuffer buf; | |
| 2207 HdrGenState hgs; | |
| 2208 char *p; | |
| 2209 | |
| 2210 memset(&hgs, 0, sizeof(hgs)); | |
| 2211 toCBuffer(&buf, &hgs); | |
| 2212 buf.writeByte(0); | |
| 2213 p = (char *)buf.data; | |
| 2214 buf.data = NULL; | |
| 2215 return p; | |
| 2216 } | |
| 2217 | |
| 2218 Expression *StringExp::semantic(Scope *sc) | |
| 2219 { | |
| 2220 #if LOGSEMANTIC | |
| 2221 printf("StringExp::semantic() %s\n", toChars()); | |
| 2222 #endif | |
| 2223 if (!type) | |
| 2224 { OutBuffer buffer; | |
| 2225 size_t newlen = 0; | |
| 2226 char *p; | |
| 2227 size_t u; | |
| 2228 unsigned c; | |
| 2229 | |
| 2230 switch (postfix) | |
| 2231 { | |
| 2232 case 'd': | |
| 2233 for (u = 0; u < len;) | |
| 2234 { | |
| 2235 p = utf_decodeChar((unsigned char *)string, len, &u, &c); | |
| 2236 if (p) | |
| 2237 { error("%s", p); | |
| 2238 break; | |
| 2239 } | |
| 2240 else | |
| 2241 { buffer.write4(c); | |
| 2242 newlen++; | |
| 2243 } | |
| 2244 } | |
| 2245 buffer.write4(0); | |
| 2246 string = buffer.extractData(); | |
| 2247 len = newlen; | |
| 2248 sz = 4; | |
| 2249 type = new TypeSArray(Type::tdchar, new IntegerExp(loc, len, Type::tindex)); | |
| 2250 committed = 1; | |
| 2251 break; | |
| 2252 | |
| 2253 case 'w': | |
| 2254 for (u = 0; u < len;) | |
| 2255 { | |
| 2256 p = utf_decodeChar((unsigned char *)string, len, &u, &c); | |
| 2257 if (p) | |
| 2258 { error("%s", p); | |
| 2259 break; | |
| 2260 } | |
| 2261 else | |
| 2262 { buffer.writeUTF16(c); | |
| 2263 newlen++; | |
| 2264 if (c >= 0x10000) | |
| 2265 newlen++; | |
| 2266 } | |
| 2267 } | |
| 2268 buffer.writeUTF16(0); | |
| 2269 string = buffer.extractData(); | |
| 2270 len = newlen; | |
| 2271 sz = 2; | |
| 2272 type = new TypeSArray(Type::twchar, new IntegerExp(loc, len, Type::tindex)); | |
| 2273 committed = 1; | |
| 2274 break; | |
| 2275 | |
| 2276 case 'c': | |
| 2277 committed = 1; | |
| 2278 default: | |
| 2279 type = new TypeSArray(Type::tchar, new IntegerExp(loc, len, Type::tindex)); | |
| 2280 break; | |
| 2281 } | |
| 2282 type = type->semantic(loc, sc); | |
| 2283 } | |
| 2284 return this; | |
| 2285 } | |
| 2286 | |
| 2287 /**************************************** | |
| 2288 * Convert string to char[]. | |
| 2289 */ | |
| 2290 | |
| 2291 StringExp *StringExp::toUTF8(Scope *sc) | |
| 2292 { | |
| 2293 if (sz != 1) | |
| 2294 { // Convert to UTF-8 string | |
| 2295 committed = 0; | |
| 2296 Expression *e = castTo(sc, Type::tchar->arrayOf()); | |
| 2297 e = e->optimize(WANTvalue); | |
| 2298 assert(e->op == TOKstring); | |
| 2299 StringExp *se = (StringExp *)e; | |
| 2300 assert(se->sz == 1); | |
| 2301 return se; | |
| 2302 } | |
| 2303 return this; | |
| 2304 } | |
| 2305 | |
| 2306 int StringExp::compare(Object *obj) | |
| 2307 { | |
| 2308 // Used to sort case statement expressions so we can do an efficient lookup | |
| 2309 StringExp *se2 = (StringExp *)(obj); | |
| 2310 | |
| 2311 // This is a kludge so isExpression() in template.c will return 5 | |
| 2312 // for StringExp's. | |
| 2313 if (!se2) | |
| 2314 return 5; | |
| 2315 | |
| 2316 assert(se2->op == TOKstring); | |
| 2317 | |
| 2318 int len1 = len; | |
| 2319 int len2 = se2->len; | |
| 2320 | |
| 2321 if (len1 == len2) | |
| 2322 { | |
| 2323 switch (sz) | |
| 2324 { | |
| 2325 case 1: | |
| 2326 return strcmp((char *)string, (char *)se2->string); | |
| 2327 | |
| 2328 case 2: | |
| 2329 { unsigned u; | |
| 2330 d_wchar *s1 = (d_wchar *)string; | |
| 2331 d_wchar *s2 = (d_wchar *)se2->string; | |
| 2332 | |
| 2333 for (u = 0; u < len; u++) | |
| 2334 { | |
| 2335 if (s1[u] != s2[u]) | |
| 2336 return s1[u] - s2[u]; | |
| 2337 } | |
| 2338 } | |
| 2339 | |
| 2340 case 4: | |
| 2341 { unsigned u; | |
| 2342 d_dchar *s1 = (d_dchar *)string; | |
| 2343 d_dchar *s2 = (d_dchar *)se2->string; | |
| 2344 | |
| 2345 for (u = 0; u < len; u++) | |
| 2346 { | |
| 2347 if (s1[u] != s2[u]) | |
| 2348 return s1[u] - s2[u]; | |
| 2349 } | |
| 2350 } | |
| 2351 break; | |
| 2352 | |
| 2353 default: | |
| 2354 assert(0); | |
| 2355 } | |
| 2356 } | |
| 2357 return len1 - len2; | |
| 2358 } | |
| 2359 | |
| 2360 int StringExp::isBool(int result) | |
| 2361 { | |
| 2362 return result ? TRUE : FALSE; | |
| 2363 } | |
| 2364 | |
| 2365 unsigned StringExp::charAt(size_t i) | |
| 2366 { unsigned value; | |
| 2367 | |
| 2368 switch (sz) | |
| 2369 { | |
| 2370 case 1: | |
| 2371 value = ((unsigned char *)string)[i]; | |
| 2372 break; | |
| 2373 | |
| 2374 case 2: | |
| 2375 value = ((unsigned short *)string)[i]; | |
| 2376 break; | |
| 2377 | |
| 2378 case 4: | |
| 2379 value = ((unsigned int *)string)[i]; | |
| 2380 break; | |
| 2381 | |
| 2382 default: | |
| 2383 assert(0); | |
| 2384 break; | |
| 2385 } | |
| 2386 return value; | |
| 2387 } | |
| 2388 | |
| 2389 void StringExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2390 { | |
| 2391 buf->writeByte('"'); | |
| 2392 for (size_t i = 0; i < len; i++) | |
| 2393 { unsigned c = charAt(i); | |
| 2394 | |
| 2395 switch (c) | |
| 2396 { | |
| 2397 case '"': | |
| 2398 case '\\': | |
| 2399 if (!hgs->console) | |
| 2400 buf->writeByte('\\'); | |
| 2401 default: | |
| 2402 if (c <= 0xFF) | |
| 2403 { if (c <= 0x7F && (isprint(c) || hgs->console)) | |
| 2404 buf->writeByte(c); | |
| 2405 else | |
| 2406 buf->printf("\\x%02x", c); | |
| 2407 } | |
| 2408 else if (c <= 0xFFFF) | |
| 2409 buf->printf("\\x%02x\\x%02x", c & 0xFF, c >> 8); | |
| 2410 else | |
| 2411 buf->printf("\\x%02x\\x%02x\\x%02x\\x%02x", | |
| 2412 c & 0xFF, (c >> 8) & 0xFF, (c >> 16) & 0xFF, c >> 24); | |
| 2413 break; | |
| 2414 } | |
| 2415 } | |
| 2416 buf->writeByte('"'); | |
| 2417 if (postfix) | |
| 2418 buf->writeByte(postfix); | |
| 2419 } | |
| 2420 | |
| 2421 void StringExp::toMangleBuffer(OutBuffer *buf) | |
| 2422 { char m; | |
| 2423 OutBuffer tmp; | |
| 2424 char *p; | |
| 2425 unsigned c; | |
| 2426 size_t u; | |
| 2427 unsigned char *q; | |
| 2428 unsigned qlen; | |
| 2429 | |
| 2430 /* Write string in UTF-8 format | |
| 2431 */ | |
| 2432 switch (sz) | |
| 2433 { case 1: | |
| 2434 m = 'a'; | |
| 2435 q = (unsigned char *)string; | |
| 2436 qlen = len; | |
| 2437 break; | |
| 2438 case 2: | |
| 2439 m = 'w'; | |
| 2440 for (u = 0; u < len; ) | |
| 2441 { | |
| 2442 p = utf_decodeWchar((unsigned short *)string, len, &u, &c); | |
| 2443 if (p) | |
| 2444 error("%s", p); | |
| 2445 else | |
| 2446 tmp.writeUTF8(c); | |
| 2447 } | |
| 2448 q = tmp.data; | |
| 2449 qlen = tmp.offset; | |
| 2450 break; | |
| 2451 case 4: | |
| 2452 m = 'd'; | |
| 2453 for (u = 0; u < len; u++) | |
| 2454 { | |
| 2455 c = ((unsigned *)string)[u]; | |
| 2456 if (!utf_isValidDchar(c)) | |
| 2457 error("invalid UCS-32 char \\U%08x", c); | |
| 2458 else | |
| 2459 tmp.writeUTF8(c); | |
| 2460 } | |
| 2461 q = tmp.data; | |
| 2462 qlen = tmp.offset; | |
| 2463 break; | |
| 2464 default: | |
| 2465 assert(0); | |
| 2466 } | |
| 2467 buf->writeByte(m); | |
| 2468 buf->printf("%d_", qlen); | |
| 2469 for (size_t i = 0; i < qlen; i++) | |
| 2470 buf->printf("%02x", q[i]); | |
| 2471 } | |
| 2472 | |
| 2473 /************************ ArrayLiteralExp ************************************/ | |
| 2474 | |
| 2475 // [ e1, e2, e3, ... ] | |
| 2476 | |
| 2477 ArrayLiteralExp::ArrayLiteralExp(Loc loc, Expressions *elements) | |
| 2478 : Expression(loc, TOKarrayliteral, sizeof(ArrayLiteralExp)) | |
| 2479 { | |
| 2480 this->elements = elements; | |
| 2481 } | |
| 2482 | |
| 2483 ArrayLiteralExp::ArrayLiteralExp(Loc loc, Expression *e) | |
| 2484 : Expression(loc, TOKarrayliteral, sizeof(ArrayLiteralExp)) | |
| 2485 { | |
| 2486 elements = new Expressions; | |
| 2487 elements->push(e); | |
| 2488 } | |
| 2489 | |
| 2490 Expression *ArrayLiteralExp::syntaxCopy() | |
| 2491 { | |
| 2492 return new ArrayLiteralExp(loc, arraySyntaxCopy(elements)); | |
| 2493 } | |
| 2494 | |
| 2495 Expression *ArrayLiteralExp::semantic(Scope *sc) | |
| 2496 { Expression *e; | |
| 2497 Type *t0 = NULL; | |
| 2498 | |
| 2499 #if LOGSEMANTIC | |
| 2500 printf("ArrayLiteralExp::semantic('%s')\n", toChars()); | |
| 2501 #endif | |
| 2502 if (type) | |
| 2503 return this; | |
| 2504 | |
| 2505 // Run semantic() on each element | |
| 2506 for (int i = 0; i < elements->dim; i++) | |
| 2507 { e = (Expression *)elements->data[i]; | |
| 2508 e = e->semantic(sc); | |
| 2509 elements->data[i] = (void *)e; | |
| 2510 } | |
| 2511 expandTuples(elements); | |
| 2512 for (int i = 0; i < elements->dim; i++) | |
| 2513 { e = (Expression *)elements->data[i]; | |
| 2514 | |
| 2515 if (!e->type) | |
| 2516 error("%s has no value", e->toChars()); | |
| 2517 e = resolveProperties(sc, e); | |
| 2518 | |
| 2519 unsigned char committed = 1; | |
| 2520 if (e->op == TOKstring) | |
| 2521 committed = ((StringExp *)e)->committed; | |
| 2522 | |
| 2523 if (!t0) | |
| 2524 { t0 = e->type; | |
| 2525 // Convert any static arrays to dynamic arrays | |
| 2526 if (t0->ty == Tsarray) | |
| 2527 { | |
| 2528 t0 = t0->next->arrayOf(); | |
| 2529 e = e->implicitCastTo(sc, t0); | |
| 2530 } | |
| 2531 } | |
| 2532 else | |
| 2533 e = e->implicitCastTo(sc, t0); | |
| 2534 if (!committed && e->op == TOKstring) | |
| 2535 { StringExp *se = (StringExp *)e; | |
| 2536 se->committed = 0; | |
| 2537 } | |
| 2538 elements->data[i] = (void *)e; | |
| 2539 } | |
| 2540 | |
| 2541 if (!t0) | |
| 2542 t0 = Type::tvoid; | |
| 2543 type = new TypeSArray(t0, new IntegerExp(elements->dim)); | |
| 2544 type = type->semantic(loc, sc); | |
| 2545 return this; | |
| 2546 } | |
| 2547 | |
| 2548 int ArrayLiteralExp::checkSideEffect(int flag) | |
| 2549 { int f = 0; | |
| 2550 | |
| 2551 for (size_t i = 0; i < elements->dim; i++) | |
| 2552 { Expression *e = (Expression *)elements->data[i]; | |
| 2553 | |
| 2554 f |= e->checkSideEffect(2); | |
| 2555 } | |
| 2556 if (flag == 0 && f == 0) | |
| 2557 Expression::checkSideEffect(0); | |
| 2558 return f; | |
| 2559 } | |
| 2560 | |
| 2561 int ArrayLiteralExp::isBool(int result) | |
| 2562 { | |
| 2563 size_t dim = elements ? elements->dim : 0; | |
| 2564 return result ? (dim != 0) : (dim == 0); | |
| 2565 } | |
| 2566 | |
| 2567 void ArrayLiteralExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2568 { | |
| 2569 buf->writeByte('['); | |
| 2570 argsToCBuffer(buf, elements, hgs); | |
| 2571 buf->writeByte(']'); | |
| 2572 } | |
| 2573 | |
| 2574 void ArrayLiteralExp::toMangleBuffer(OutBuffer *buf) | |
| 2575 { | |
| 2576 size_t dim = elements ? elements->dim : 0; | |
| 2577 buf->printf("A%u", dim); | |
| 2578 for (size_t i = 0; i < dim; i++) | |
| 2579 { Expression *e = (Expression *)elements->data[i]; | |
| 2580 e->toMangleBuffer(buf); | |
| 2581 } | |
| 2582 } | |
| 2583 | |
| 2584 /************************ AssocArrayLiteralExp ************************************/ | |
| 2585 | |
| 2586 // [ key0 : value0, key1 : value1, ... ] | |
| 2587 | |
| 2588 AssocArrayLiteralExp::AssocArrayLiteralExp(Loc loc, | |
| 2589 Expressions *keys, Expressions *values) | |
| 2590 : Expression(loc, TOKassocarrayliteral, sizeof(AssocArrayLiteralExp)) | |
| 2591 { | |
| 2592 assert(keys->dim == values->dim); | |
| 2593 this->keys = keys; | |
| 2594 this->values = values; | |
| 2595 } | |
| 2596 | |
| 2597 Expression *AssocArrayLiteralExp::syntaxCopy() | |
| 2598 { | |
| 2599 return new AssocArrayLiteralExp(loc, | |
| 2600 arraySyntaxCopy(keys), arraySyntaxCopy(values)); | |
| 2601 } | |
| 2602 | |
| 2603 Expression *AssocArrayLiteralExp::semantic(Scope *sc) | |
| 2604 { Expression *e; | |
| 2605 Type *tkey = NULL; | |
| 2606 Type *tvalue = NULL; | |
| 2607 | |
| 2608 #if LOGSEMANTIC | |
| 2609 printf("AssocArrayLiteralExp::semantic('%s')\n", toChars()); | |
| 2610 #endif | |
| 2611 | |
| 2612 // Run semantic() on each element | |
| 2613 for (size_t i = 0; i < keys->dim; i++) | |
| 2614 { Expression *key = (Expression *)keys->data[i]; | |
| 2615 Expression *value = (Expression *)values->data[i]; | |
| 2616 | |
| 2617 key = key->semantic(sc); | |
| 2618 value = value->semantic(sc); | |
| 2619 | |
| 2620 keys->data[i] = (void *)key; | |
| 2621 values->data[i] = (void *)value; | |
| 2622 } | |
| 2623 expandTuples(keys); | |
| 2624 expandTuples(values); | |
| 2625 if (keys->dim != values->dim) | |
| 2626 { | |
| 2627 error("number of keys is %u, must match number of values %u", keys->dim, values->dim); | |
| 2628 keys->setDim(0); | |
| 2629 values->setDim(0); | |
| 2630 } | |
| 2631 for (size_t i = 0; i < keys->dim; i++) | |
| 2632 { Expression *key = (Expression *)keys->data[i]; | |
| 2633 Expression *value = (Expression *)values->data[i]; | |
| 2634 | |
| 2635 if (!key->type) | |
| 2636 error("%s has no value", key->toChars()); | |
| 2637 if (!value->type) | |
| 2638 error("%s has no value", value->toChars()); | |
| 2639 key = resolveProperties(sc, key); | |
| 2640 value = resolveProperties(sc, value); | |
| 2641 | |
| 2642 if (!tkey) | |
| 2643 tkey = key->type; | |
| 2644 else | |
| 2645 key = key->implicitCastTo(sc, tkey); | |
| 2646 keys->data[i] = (void *)key; | |
| 2647 | |
| 2648 if (!tvalue) | |
| 2649 tvalue = value->type; | |
| 2650 else | |
| 2651 value = value->implicitCastTo(sc, tvalue); | |
| 2652 values->data[i] = (void *)value; | |
| 2653 } | |
| 2654 | |
| 2655 if (!tkey) | |
| 2656 tkey = Type::tvoid; | |
| 2657 if (!tvalue) | |
| 2658 tvalue = Type::tvoid; | |
| 2659 type = new TypeAArray(tvalue, tkey); | |
| 2660 type = type->semantic(loc, sc); | |
| 2661 return this; | |
| 2662 } | |
| 2663 | |
| 2664 int AssocArrayLiteralExp::checkSideEffect(int flag) | |
| 2665 { int f = 0; | |
| 2666 | |
| 2667 for (size_t i = 0; i < keys->dim; i++) | |
| 2668 { Expression *key = (Expression *)keys->data[i]; | |
| 2669 Expression *value = (Expression *)values->data[i]; | |
| 2670 | |
| 2671 f |= key->checkSideEffect(2); | |
| 2672 f |= value->checkSideEffect(2); | |
| 2673 } | |
| 2674 if (flag == 0 && f == 0) | |
| 2675 Expression::checkSideEffect(0); | |
| 2676 return f; | |
| 2677 } | |
| 2678 | |
| 2679 int AssocArrayLiteralExp::isBool(int result) | |
| 2680 { | |
| 2681 size_t dim = keys->dim; | |
| 2682 return result ? (dim != 0) : (dim == 0); | |
| 2683 } | |
| 2684 | |
| 2685 void AssocArrayLiteralExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2686 { | |
| 2687 buf->writeByte('['); | |
| 2688 for (size_t i = 0; i < keys->dim; i++) | |
| 2689 { Expression *key = (Expression *)keys->data[i]; | |
| 2690 Expression *value = (Expression *)values->data[i]; | |
| 2691 | |
| 2692 if (i) | |
| 2693 buf->writeByte(','); | |
| 2694 expToCBuffer(buf, hgs, key, PREC_assign); | |
| 2695 buf->writeByte(':'); | |
| 2696 expToCBuffer(buf, hgs, value, PREC_assign); | |
| 2697 } | |
| 2698 buf->writeByte(']'); | |
| 2699 } | |
| 2700 | |
| 2701 void AssocArrayLiteralExp::toMangleBuffer(OutBuffer *buf) | |
| 2702 { | |
| 2703 size_t dim = keys->dim; | |
| 2704 buf->printf("A%u", dim); | |
| 2705 for (size_t i = 0; i < dim; i++) | |
| 2706 { Expression *key = (Expression *)keys->data[i]; | |
| 2707 Expression *value = (Expression *)values->data[i]; | |
| 2708 | |
| 2709 key->toMangleBuffer(buf); | |
| 2710 value->toMangleBuffer(buf); | |
| 2711 } | |
| 2712 } | |
| 2713 | |
| 2714 /************************ StructLiteralExp ************************************/ | |
| 2715 | |
| 2716 // sd( e1, e2, e3, ... ) | |
| 2717 | |
| 2718 StructLiteralExp::StructLiteralExp(Loc loc, StructDeclaration *sd, Expressions *elements) | |
| 2719 : Expression(loc, TOKstructliteral, sizeof(StructLiteralExp)) | |
| 2720 { | |
| 2721 this->sd = sd; | |
| 2722 this->elements = elements; | |
| 2723 this->sym = NULL; | |
| 2724 this->soffset = 0; | |
| 2725 this->fillHoles = 1; | |
| 2726 } | |
| 2727 | |
| 2728 Expression *StructLiteralExp::syntaxCopy() | |
| 2729 { | |
| 2730 return new StructLiteralExp(loc, sd, arraySyntaxCopy(elements)); | |
| 2731 } | |
| 2732 | |
| 2733 Expression *StructLiteralExp::semantic(Scope *sc) | |
| 2734 { Expression *e; | |
| 2735 | |
| 2736 #if LOGSEMANTIC | |
| 2737 printf("StructLiteralExp::semantic('%s')\n", toChars()); | |
| 2738 #endif | |
| 2739 | |
| 2740 // Run semantic() on each element | |
| 2741 for (size_t i = 0; i < elements->dim; i++) | |
| 2742 { e = (Expression *)elements->data[i]; | |
| 2743 if (!e) | |
| 2744 continue; | |
| 2745 e = e->semantic(sc); | |
| 2746 elements->data[i] = (void *)e; | |
| 2747 } | |
| 2748 expandTuples(elements); | |
| 2749 size_t offset = 0; | |
| 2750 for (size_t i = 0; i < elements->dim; i++) | |
| 2751 { e = (Expression *)elements->data[i]; | |
| 2752 if (!e) | |
| 2753 continue; | |
| 2754 | |
| 2755 if (!e->type) | |
| 2756 error("%s has no value", e->toChars()); | |
| 2757 e = resolveProperties(sc, e); | |
| 2758 if (i >= sd->fields.dim) | |
| 2759 { error("more initializers than fields of %s", sd->toChars()); | |
| 2760 break; | |
| 2761 } | |
| 2762 Dsymbol *s = (Dsymbol *)sd->fields.data[i]; | |
| 2763 VarDeclaration *v = s->isVarDeclaration(); | |
| 2764 assert(v); | |
| 2765 if (v->offset < offset) | |
| 2766 error("overlapping initialization for %s", v->toChars()); | |
| 2767 offset = v->offset + v->type->size(); | |
| 2768 | |
| 2769 Type *telem = v->type; | |
| 2770 while (!e->implicitConvTo(telem) && telem->toBasetype()->ty == Tsarray) | |
| 2771 { /* Static array initialization, as in: | |
| 2772 * T[3][5] = e; | |
| 2773 */ | |
| 2774 telem = telem->toBasetype()->nextOf(); | |
| 2775 } | |
| 2776 | |
| 2777 e = e->implicitCastTo(sc, telem); | |
| 2778 | |
| 2779 elements->data[i] = (void *)e; | |
| 2780 } | |
| 2781 | |
| 2782 /* Fill out remainder of elements[] with default initializers for fields[] | |
| 2783 */ | |
| 2784 for (size_t i = elements->dim; i < sd->fields.dim; i++) | |
| 2785 { Dsymbol *s = (Dsymbol *)sd->fields.data[i]; | |
| 2786 VarDeclaration *v = s->isVarDeclaration(); | |
| 2787 assert(v); | |
| 2788 | |
| 2789 if (v->offset < offset) | |
| 2790 { e = NULL; | |
| 2791 sd->hasUnions = 1; | |
| 2792 } | |
| 2793 else | |
| 2794 { | |
| 2795 if (v->init) | |
| 2796 { e = v->init->toExpression(); | |
| 2797 if (!e) | |
| 2798 error("cannot make expression out of initializer for %s", v->toChars()); | |
| 2799 } | |
| 2800 else | |
| 2801 { e = v->type->defaultInit(); | |
| 2802 e->loc = loc; | |
| 2803 } | |
| 2804 offset = v->offset + v->type->size(); | |
| 2805 } | |
| 2806 elements->push(e); | |
| 2807 } | |
| 2808 | |
| 2809 type = sd->type; | |
| 2810 return this; | |
| 2811 } | |
| 2812 | |
| 2813 /************************************** | |
| 2814 * Gets expression at offset of type. | |
| 2815 * Returns NULL if not found. | |
| 2816 */ | |
| 2817 | |
| 2818 Expression *StructLiteralExp::getField(Type *type, unsigned offset) | |
| 2819 { Expression *e = NULL; | |
| 2820 int i = getFieldIndex(type, offset); | |
| 2821 | |
| 2822 if (i != -1) | |
| 2823 { e = (Expression *)elements->data[i]; | |
| 2824 if (e) | |
| 2825 { | |
| 2826 e = e->copy(); | |
| 2827 e->type = type; | |
| 2828 } | |
| 2829 } | |
| 2830 return e; | |
| 2831 } | |
| 2832 | |
| 2833 /************************************ | |
| 2834 * Get index of field. | |
| 2835 * Returns -1 if not found. | |
| 2836 */ | |
| 2837 | |
| 2838 int StructLiteralExp::getFieldIndex(Type *type, unsigned offset) | |
| 2839 { | |
| 2840 /* Find which field offset is by looking at the field offsets | |
| 2841 */ | |
| 2842 for (size_t i = 0; i < sd->fields.dim; i++) | |
| 2843 { | |
| 2844 Dsymbol *s = (Dsymbol *)sd->fields.data[i]; | |
| 2845 VarDeclaration *v = s->isVarDeclaration(); | |
| 2846 assert(v); | |
| 2847 | |
| 2848 if (offset == v->offset && | |
| 2849 type->size() == v->type->size()) | |
| 2850 { Expression *e = (Expression *)elements->data[i]; | |
| 2851 if (e) | |
| 2852 { | |
| 2853 return i; | |
| 2854 } | |
| 2855 break; | |
| 2856 } | |
| 2857 } | |
| 2858 return -1; | |
| 2859 } | |
| 2860 | |
| 2861 | |
| 2862 Expression *StructLiteralExp::toLvalue(Scope *sc, Expression *e) | |
| 2863 { | |
| 2864 return this; | |
| 2865 } | |
| 2866 | |
| 2867 | |
| 2868 int StructLiteralExp::checkSideEffect(int flag) | |
| 2869 { int f = 0; | |
| 2870 | |
| 2871 for (size_t i = 0; i < elements->dim; i++) | |
| 2872 { Expression *e = (Expression *)elements->data[i]; | |
| 2873 if (!e) | |
| 2874 continue; | |
| 2875 | |
| 2876 f |= e->checkSideEffect(2); | |
| 2877 } | |
| 2878 if (flag == 0 && f == 0) | |
| 2879 Expression::checkSideEffect(0); | |
| 2880 return f; | |
| 2881 } | |
| 2882 | |
| 2883 void StructLiteralExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2884 { | |
| 2885 buf->writestring(sd->toChars()); | |
| 2886 buf->writeByte('('); | |
| 2887 argsToCBuffer(buf, elements, hgs); | |
| 2888 buf->writeByte(')'); | |
| 2889 } | |
| 2890 | |
| 2891 void StructLiteralExp::toMangleBuffer(OutBuffer *buf) | |
| 2892 { | |
| 2893 size_t dim = elements ? elements->dim : 0; | |
| 2894 buf->printf("S%u", dim); | |
| 2895 for (size_t i = 0; i < dim; i++) | |
| 2896 { Expression *e = (Expression *)elements->data[i]; | |
| 2897 if (e) | |
| 2898 e->toMangleBuffer(buf); | |
| 2899 else | |
| 2900 buf->writeByte('v'); // 'v' for void | |
| 2901 } | |
| 2902 } | |
| 2903 | |
| 2904 /************************ TypeDotIdExp ************************************/ | |
| 2905 | |
| 2906 /* Things like: | |
| 2907 * int.size | |
| 2908 * foo.size | |
| 2909 * (foo).size | |
| 2910 * cast(foo).size | |
| 2911 */ | |
| 2912 | |
| 2913 TypeDotIdExp::TypeDotIdExp(Loc loc, Type *type, Identifier *ident) | |
| 2914 : Expression(loc, TOKtypedot, sizeof(TypeDotIdExp)) | |
| 2915 { | |
| 2916 this->type = type; | |
| 2917 this->ident = ident; | |
| 2918 } | |
| 2919 | |
| 2920 Expression *TypeDotIdExp::syntaxCopy() | |
| 2921 { | |
| 2922 TypeDotIdExp *te = new TypeDotIdExp(loc, type->syntaxCopy(), ident); | |
| 2923 return te; | |
| 2924 } | |
| 2925 | |
| 2926 Expression *TypeDotIdExp::semantic(Scope *sc) | |
| 2927 { Expression *e; | |
| 2928 | |
| 2929 #if LOGSEMANTIC | |
| 2930 printf("TypeDotIdExp::semantic()\n"); | |
| 2931 #endif | |
| 2932 e = new DotIdExp(loc, new TypeExp(loc, type), ident); | |
| 2933 e = e->semantic(sc); | |
| 2934 return e; | |
| 2935 } | |
| 2936 | |
| 2937 void TypeDotIdExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2938 { | |
| 2939 buf->writeByte('('); | |
| 2940 type->toCBuffer(buf, NULL, hgs); | |
| 2941 buf->writeByte(')'); | |
| 2942 buf->writeByte('.'); | |
| 2943 buf->writestring(ident->toChars()); | |
| 2944 } | |
| 2945 | |
| 2946 /************************************************************/ | |
| 2947 | |
| 2948 // Mainly just a placeholder | |
| 2949 | |
| 2950 TypeExp::TypeExp(Loc loc, Type *type) | |
| 2951 : Expression(loc, TOKtype, sizeof(TypeExp)) | |
| 2952 { | |
| 2953 //printf("TypeExp::TypeExp(%s)\n", type->toChars()); | |
| 2954 this->type = type; | |
| 2955 } | |
| 2956 | |
| 2957 Expression *TypeExp::semantic(Scope *sc) | |
| 2958 { | |
| 2959 //printf("TypeExp::semantic(%s)\n", type->toChars()); | |
| 2960 type = type->semantic(loc, sc); | |
| 2961 return this; | |
| 2962 } | |
| 2963 | |
| 2964 void TypeExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2965 { | |
| 2966 type->toCBuffer(buf, NULL, hgs); | |
| 2967 } | |
| 2968 | |
| 2969 /************************************************************/ | |
| 2970 | |
| 2971 // Mainly just a placeholder | |
| 2972 | |
| 2973 ScopeExp::ScopeExp(Loc loc, ScopeDsymbol *pkg) | |
| 2974 : Expression(loc, TOKimport, sizeof(ScopeExp)) | |
| 2975 { | |
| 2976 //printf("ScopeExp::ScopeExp(pkg = '%s')\n", pkg->toChars()); | |
| 2977 //static int count; if (++count == 38) *(char*)0=0; | |
| 2978 this->sds = pkg; | |
| 2979 } | |
| 2980 | |
| 2981 Expression *ScopeExp::syntaxCopy() | |
| 2982 { | |
| 2983 ScopeExp *se = new ScopeExp(loc, (ScopeDsymbol *)sds->syntaxCopy(NULL)); | |
| 2984 return se; | |
| 2985 } | |
| 2986 | |
| 2987 Expression *ScopeExp::semantic(Scope *sc) | |
| 2988 { | |
| 2989 TemplateInstance *ti; | |
| 2990 ScopeDsymbol *sds2; | |
| 2991 | |
| 2992 #if LOGSEMANTIC | |
| 2993 printf("+ScopeExp::semantic('%s')\n", toChars()); | |
| 2994 #endif | |
| 2995 Lagain: | |
| 2996 ti = sds->isTemplateInstance(); | |
| 2997 if (ti && !global.errors) | |
| 2998 { Dsymbol *s; | |
| 2999 if (!ti->semanticdone) | |
| 3000 ti->semantic(sc); | |
| 3001 s = ti->inst->toAlias(); | |
| 3002 sds2 = s->isScopeDsymbol(); | |
| 3003 if (!sds2) | |
| 3004 { Expression *e; | |
| 3005 | |
| 3006 //printf("s = %s, '%s'\n", s->kind(), s->toChars()); | |
| 3007 if (ti->withsym) | |
| 3008 { | |
| 3009 // Same as wthis.s | |
| 3010 e = new VarExp(loc, ti->withsym->withstate->wthis); | |
| 3011 e = new DotVarExp(loc, e, s->isDeclaration()); | |
| 3012 } | |
| 3013 else | |
| 3014 e = new DsymbolExp(loc, s); | |
| 3015 e = e->semantic(sc); | |
| 3016 //printf("-1ScopeExp::semantic()\n"); | |
| 3017 return e; | |
| 3018 } | |
| 3019 if (sds2 != sds) | |
| 3020 { | |
| 3021 sds = sds2; | |
| 3022 goto Lagain; | |
| 3023 } | |
| 3024 //printf("sds = %s, '%s'\n", sds->kind(), sds->toChars()); | |
| 3025 } | |
| 3026 else | |
| 3027 { | |
| 3028 //printf("sds = %s, '%s'\n", sds->kind(), sds->toChars()); | |
| 3029 //printf("\tparent = '%s'\n", sds->parent->toChars()); | |
| 3030 sds->semantic(sc); | |
| 3031 } | |
| 3032 type = Type::tvoid; | |
| 3033 //printf("-2ScopeExp::semantic() %s\n", toChars()); | |
| 3034 return this; | |
| 3035 } | |
| 3036 | |
| 3037 void ScopeExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3038 { | |
| 3039 if (sds->isTemplateInstance()) | |
| 3040 { | |
| 3041 sds->toCBuffer(buf, hgs); | |
| 3042 } | |
| 3043 else | |
| 3044 { | |
| 3045 buf->writestring(sds->kind()); | |
| 3046 buf->writestring(" "); | |
| 3047 buf->writestring(sds->toChars()); | |
| 3048 } | |
| 3049 } | |
| 3050 | |
| 3051 /********************** TemplateExp **************************************/ | |
| 3052 | |
| 3053 // Mainly just a placeholder | |
| 3054 | |
| 3055 TemplateExp::TemplateExp(Loc loc, TemplateDeclaration *td) | |
| 3056 : Expression(loc, TOKtemplate, sizeof(TemplateExp)) | |
| 3057 { | |
| 3058 //printf("TemplateExp(): %s\n", td->toChars()); | |
| 3059 this->td = td; | |
| 3060 } | |
| 3061 | |
| 3062 void TemplateExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3063 { | |
| 3064 buf->writestring(td->toChars()); | |
| 3065 } | |
| 3066 | |
| 3067 void TemplateExp::rvalue() | |
| 3068 { | |
| 3069 error("template %s has no value", toChars()); | |
| 3070 } | |
| 3071 | |
| 3072 /********************** NewExp **************************************/ | |
| 3073 | |
| 3074 NewExp::NewExp(Loc loc, Expression *thisexp, Expressions *newargs, | |
| 3075 Type *newtype, Expressions *arguments) | |
| 3076 : Expression(loc, TOKnew, sizeof(NewExp)) | |
| 3077 { | |
| 3078 this->thisexp = thisexp; | |
| 3079 this->newargs = newargs; | |
| 3080 this->newtype = newtype; | |
| 3081 this->arguments = arguments; | |
| 3082 member = NULL; | |
| 3083 allocator = NULL; | |
| 3084 onstack = 0; | |
| 3085 } | |
| 3086 | |
| 3087 Expression *NewExp::syntaxCopy() | |
| 3088 { | |
| 3089 return new NewExp(loc, | |
| 3090 thisexp ? thisexp->syntaxCopy() : NULL, | |
| 3091 arraySyntaxCopy(newargs), | |
| 3092 newtype->syntaxCopy(), arraySyntaxCopy(arguments)); | |
| 3093 } | |
| 3094 | |
| 3095 | |
| 3096 Expression *NewExp::semantic(Scope *sc) | |
| 3097 { int i; | |
| 3098 Type *tb; | |
| 3099 ClassDeclaration *cdthis = NULL; | |
| 3100 | |
| 3101 #if LOGSEMANTIC | |
| 3102 printf("NewExp::semantic() %s\n", toChars()); | |
| 3103 if (thisexp) | |
| 3104 printf("\tthisexp = %s\n", thisexp->toChars()); | |
| 3105 printf("\tnewtype: %s\n", newtype->toChars()); | |
| 3106 #endif | |
| 3107 if (type) // if semantic() already run | |
| 3108 return this; | |
| 3109 | |
| 3110 Lagain: | |
| 3111 if (thisexp) | |
| 3112 { thisexp = thisexp->semantic(sc); | |
| 3113 cdthis = thisexp->type->isClassHandle(); | |
| 3114 if (cdthis) | |
| 3115 { | |
| 3116 sc = sc->push(cdthis); | |
| 3117 type = newtype->semantic(loc, sc); | |
| 3118 sc = sc->pop(); | |
| 3119 } | |
| 3120 else | |
| 3121 { | |
| 3122 error("'this' for nested class must be a class type, not %s", thisexp->type->toChars()); | |
| 3123 type = newtype->semantic(loc, sc); | |
| 3124 } | |
| 3125 } | |
| 3126 else | |
| 3127 type = newtype->semantic(loc, sc); | |
| 3128 newtype = type; // in case type gets cast to something else | |
| 3129 tb = type->toBasetype(); | |
| 3130 //printf("tb: %s, deco = %s\n", tb->toChars(), tb->deco); | |
| 3131 | |
| 3132 arrayExpressionSemantic(newargs, sc); | |
| 3133 preFunctionArguments(loc, sc, newargs); | |
| 3134 arrayExpressionSemantic(arguments, sc); | |
| 3135 preFunctionArguments(loc, sc, arguments); | |
| 3136 | |
| 3137 if (thisexp && tb->ty != Tclass) | |
| 3138 error("e.new is only for allocating nested classes, not %s", tb->toChars()); | |
| 3139 | |
| 3140 if (tb->ty == Tclass) | |
| 3141 { TypeFunction *tf; | |
| 3142 | |
| 3143 TypeClass *tc = (TypeClass *)(tb); | |
| 3144 ClassDeclaration *cd = tc->sym->isClassDeclaration(); | |
| 3145 if (cd->isInterfaceDeclaration()) | |
| 3146 error("cannot create instance of interface %s", cd->toChars()); | |
| 3147 else if (cd->isAbstract()) | |
| 3148 { error("cannot create instance of abstract class %s", cd->toChars()); | |
| 3149 for (int i = 0; i < cd->vtbl.dim; i++) | |
| 3150 { FuncDeclaration *fd = ((Dsymbol *)cd->vtbl.data[i])->isFuncDeclaration(); | |
| 3151 if (fd && fd->isAbstract()) | |
| 3152 error("function %s is abstract", fd->toChars()); | |
| 3153 } | |
| 3154 } | |
| 3155 checkDeprecated(sc, cd); | |
| 3156 if (cd->isNested()) | |
| 3157 { /* We need a 'this' pointer for the nested class. | |
| 3158 * Ensure we have the right one. | |
| 3159 */ | |
| 3160 Dsymbol *s = cd->toParent2(); | |
| 3161 ClassDeclaration *cdn = s->isClassDeclaration(); | |
| 3162 | |
| 3163 //printf("isNested, cdn = %s\n", cdn ? cdn->toChars() : "null"); | |
| 3164 if (cdn) | |
| 3165 { | |
| 3166 if (!cdthis) | |
| 3167 { | |
| 3168 // Supply an implicit 'this' and try again | |
| 3169 thisexp = new ThisExp(loc); | |
| 3170 for (Dsymbol *sp = sc->parent; 1; sp = sp->parent) | |
| 3171 { if (!sp) | |
| 3172 { | |
| 3173 error("outer class %s 'this' needed to 'new' nested class %s", cdn->toChars(), cd->toChars()); | |
| 3174 break; | |
| 3175 } | |
| 3176 ClassDeclaration *cdp = sp->isClassDeclaration(); | |
| 3177 if (!cdp) | |
| 3178 continue; | |
| 3179 if (cdp == cdn || cdn->isBaseOf(cdp, NULL)) | |
| 3180 break; | |
| 3181 // Add a '.outer' and try again | |
| 3182 thisexp = new DotIdExp(loc, thisexp, Id::outer); | |
| 3183 } | |
| 3184 if (!global.errors) | |
| 3185 goto Lagain; | |
| 3186 } | |
| 3187 if (cdthis) | |
| 3188 { | |
| 3189 //printf("cdthis = %s\n", cdthis->toChars()); | |
| 3190 if (cdthis != cdn && !cdn->isBaseOf(cdthis, NULL)) | |
| 3191 error("'this' for nested class must be of type %s, not %s", cdn->toChars(), thisexp->type->toChars()); | |
| 3192 } | |
| 3193 #if 0 | |
| 3194 else | |
| 3195 { | |
| 3196 for (Dsymbol *sf = sc->func; 1; sf= sf->toParent2()->isFuncDeclaration()) | |
| 3197 { | |
| 3198 if (!sf) | |
| 3199 { | |
| 3200 error("outer class %s 'this' needed to 'new' nested class %s", cdn->toChars(), cd->toChars()); | |
| 3201 break; | |
| 3202 } | |
| 3203 printf("sf = %s\n", sf->toChars()); | |
| 3204 AggregateDeclaration *ad = sf->isThis(); | |
| 3205 if (ad && (ad == cdn || cdn->isBaseOf(ad->isClassDeclaration(), NULL))) | |
| 3206 break; | |
| 3207 } | |
| 3208 } | |
| 3209 #endif | |
| 3210 } | |
| 3211 else if (thisexp) | |
| 3212 error("e.new is only for allocating nested classes"); | |
| 3213 } | |
| 3214 else if (thisexp) | |
| 3215 error("e.new is only for allocating nested classes"); | |
| 3216 | |
| 3217 FuncDeclaration *f = cd->ctor; | |
| 3218 if (f) | |
| 3219 { | |
| 3220 assert(f); | |
| 3221 f = f->overloadResolve(loc, arguments); | |
| 3222 checkDeprecated(sc, f); | |
| 3223 member = f->isCtorDeclaration(); | |
| 3224 assert(member); | |
| 3225 | |
| 3226 cd->accessCheck(loc, sc, member); | |
| 3227 | |
| 3228 tf = (TypeFunction *)f->type; | |
| 3229 type = tf->next; | |
| 3230 | |
| 3231 if (!arguments) | |
| 3232 arguments = new Expressions(); | |
| 3233 functionArguments(loc, sc, tf, arguments); | |
| 3234 } | |
| 3235 else | |
| 3236 { | |
| 3237 if (arguments && arguments->dim) | |
| 3238 error("no constructor for %s", cd->toChars()); | |
| 3239 } | |
| 3240 | |
| 3241 if (cd->aggNew) | |
| 3242 { Expression *e; | |
| 3243 | |
| 3244 f = cd->aggNew; | |
| 3245 | |
| 3246 // Prepend the uint size argument to newargs[] | |
| 3247 e = new IntegerExp(loc, cd->size(loc), Type::tuns32); | |
| 3248 if (!newargs) | |
| 3249 newargs = new Expressions(); | |
| 3250 newargs->shift(e); | |
| 3251 | |
| 3252 f = f->overloadResolve(loc, newargs); | |
| 3253 allocator = f->isNewDeclaration(); | |
| 3254 assert(allocator); | |
| 3255 | |
| 3256 tf = (TypeFunction *)f->type; | |
| 3257 functionArguments(loc, sc, tf, newargs); | |
| 3258 } | |
| 3259 else | |
| 3260 { | |
| 3261 if (newargs && newargs->dim) | |
| 3262 error("no allocator for %s", cd->toChars()); | |
| 3263 } | |
| 3264 | |
| 3265 } | |
| 3266 else if (tb->ty == Tstruct) | |
| 3267 { | |
| 3268 TypeStruct *ts = (TypeStruct *)tb; | |
| 3269 StructDeclaration *sd = ts->sym; | |
| 3270 FuncDeclaration *f = sd->aggNew; | |
| 3271 TypeFunction *tf; | |
| 3272 | |
| 3273 if (arguments && arguments->dim) | |
| 3274 error("no constructor for %s", type->toChars()); | |
| 3275 | |
| 3276 if (f) | |
| 3277 { | |
| 3278 Expression *e; | |
| 3279 | |
| 3280 // Prepend the uint size argument to newargs[] | |
| 3281 e = new IntegerExp(loc, sd->size(loc), Type::tuns32); | |
| 3282 if (!newargs) | |
| 3283 newargs = new Expressions(); | |
| 3284 newargs->shift(e); | |
| 3285 | |
| 3286 f = f->overloadResolve(loc, newargs); | |
| 3287 allocator = f->isNewDeclaration(); | |
| 3288 assert(allocator); | |
| 3289 | |
| 3290 tf = (TypeFunction *)f->type; | |
| 3291 functionArguments(loc, sc, tf, newargs); | |
| 3292 | |
| 3293 e = new VarExp(loc, f); | |
| 3294 e = new CallExp(loc, e, newargs); | |
| 3295 e = e->semantic(sc); | |
| 3296 e->type = type->pointerTo(); | |
| 3297 return e; | |
| 3298 } | |
| 3299 | |
| 3300 type = type->pointerTo(); | |
| 3301 } | |
| 3302 else if (tb->ty == Tarray && (arguments && arguments->dim)) | |
| 3303 { | |
| 3304 for (size_t i = 0; i < arguments->dim; i++) | |
| 3305 { | |
| 3306 if (tb->ty != Tarray) | |
| 3307 { error("too many arguments for array"); | |
| 3308 arguments->dim = i; | |
| 3309 break; | |
| 3310 } | |
| 3311 | |
| 3312 Expression *arg = (Expression *)arguments->data[i]; | |
| 3313 arg = resolveProperties(sc, arg); | |
| 3314 arg = arg->implicitCastTo(sc, Type::tsize_t); | |
| 3315 if (arg->op == TOKint64 && (long long)arg->toInteger() < 0) | |
| 3316 error("negative array index %s", arg->toChars()); | |
| 3317 arguments->data[i] = (void *) arg; | |
| 3318 tb = tb->next->toBasetype(); | |
| 3319 } | |
| 3320 } | |
| 3321 else if (tb->isscalar()) | |
| 3322 { | |
| 3323 if (arguments && arguments->dim) | |
| 3324 error("no constructor for %s", type->toChars()); | |
| 3325 | |
| 3326 type = type->pointerTo(); | |
| 3327 } | |
| 3328 else | |
| 3329 { | |
| 3330 error("new can only create structs, dynamic arrays or class objects, not %s's", type->toChars()); | |
| 3331 type = type->pointerTo(); | |
| 3332 } | |
| 3333 | |
| 3334 //printf("NewExp: '%s'\n", toChars()); | |
| 3335 //printf("NewExp:type '%s'\n", type->toChars()); | |
| 3336 | |
| 3337 return this; | |
| 3338 } | |
| 3339 | |
| 3340 int NewExp::checkSideEffect(int flag) | |
| 3341 { | |
| 3342 return 1; | |
| 3343 } | |
| 3344 | |
| 3345 void NewExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3346 { int i; | |
| 3347 | |
| 3348 if (thisexp) | |
| 3349 { expToCBuffer(buf, hgs, thisexp, PREC_primary); | |
| 3350 buf->writeByte('.'); | |
| 3351 } | |
| 3352 buf->writestring("new "); | |
| 3353 if (newargs && newargs->dim) | |
| 3354 { | |
| 3355 buf->writeByte('('); | |
| 3356 argsToCBuffer(buf, newargs, hgs); | |
| 3357 buf->writeByte(')'); | |
| 3358 } | |
| 3359 newtype->toCBuffer(buf, NULL, hgs); | |
| 3360 if (arguments && arguments->dim) | |
| 3361 { | |
| 3362 buf->writeByte('('); | |
| 3363 argsToCBuffer(buf, arguments, hgs); | |
| 3364 buf->writeByte(')'); | |
| 3365 } | |
| 3366 } | |
| 3367 | |
| 3368 /********************** NewAnonClassExp **************************************/ | |
| 3369 | |
| 3370 NewAnonClassExp::NewAnonClassExp(Loc loc, Expression *thisexp, | |
| 3371 Expressions *newargs, ClassDeclaration *cd, Expressions *arguments) | |
| 3372 : Expression(loc, TOKnewanonclass, sizeof(NewAnonClassExp)) | |
| 3373 { | |
| 3374 this->thisexp = thisexp; | |
| 3375 this->newargs = newargs; | |
| 3376 this->cd = cd; | |
| 3377 this->arguments = arguments; | |
| 3378 } | |
| 3379 | |
| 3380 Expression *NewAnonClassExp::syntaxCopy() | |
| 3381 { | |
| 3382 return new NewAnonClassExp(loc, | |
| 3383 thisexp ? thisexp->syntaxCopy() : NULL, | |
| 3384 arraySyntaxCopy(newargs), | |
| 3385 (ClassDeclaration *)cd->syntaxCopy(NULL), | |
| 3386 arraySyntaxCopy(arguments)); | |
| 3387 } | |
| 3388 | |
| 3389 | |
| 3390 Expression *NewAnonClassExp::semantic(Scope *sc) | |
| 3391 { | |
| 3392 #if LOGSEMANTIC | |
| 3393 printf("NewAnonClassExp::semantic() %s\n", toChars()); | |
| 3394 //printf("type: %s\n", type->toChars()); | |
| 3395 #endif | |
| 3396 | |
| 3397 Expression *d = new DeclarationExp(loc, cd); | |
| 3398 d = d->semantic(sc); | |
| 3399 | |
| 3400 Expression *n = new NewExp(loc, thisexp, newargs, cd->type, arguments); | |
| 3401 | |
| 3402 Expression *c = new CommaExp(loc, d, n); | |
| 3403 return c->semantic(sc); | |
| 3404 } | |
| 3405 | |
| 3406 int NewAnonClassExp::checkSideEffect(int flag) | |
| 3407 { | |
| 3408 return 1; | |
| 3409 } | |
| 3410 | |
| 3411 void NewAnonClassExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3412 { int i; | |
| 3413 | |
| 3414 if (thisexp) | |
| 3415 { expToCBuffer(buf, hgs, thisexp, PREC_primary); | |
| 3416 buf->writeByte('.'); | |
| 3417 } | |
| 3418 buf->writestring("new"); | |
| 3419 if (newargs && newargs->dim) | |
| 3420 { | |
| 3421 buf->writeByte('('); | |
| 3422 argsToCBuffer(buf, newargs, hgs); | |
| 3423 buf->writeByte(')'); | |
| 3424 } | |
| 3425 buf->writestring(" class "); | |
| 3426 if (arguments && arguments->dim) | |
| 3427 { | |
| 3428 buf->writeByte('('); | |
| 3429 argsToCBuffer(buf, arguments, hgs); | |
| 3430 buf->writeByte(')'); | |
| 3431 } | |
| 3432 //buf->writestring(" { }"); | |
| 3433 if (cd) | |
| 3434 { | |
| 3435 cd->toCBuffer(buf, hgs); | |
| 3436 } | |
| 3437 } | |
| 3438 | |
| 3439 /********************** SymOffExp **************************************/ | |
| 3440 | |
| 3441 SymOffExp::SymOffExp(Loc loc, Declaration *var, unsigned offset) | |
| 3442 : Expression(loc, TOKsymoff, sizeof(SymOffExp)) | |
| 3443 { | |
| 3444 assert(var); | |
| 3445 this->var = var; | |
| 3446 this->offset = offset; | |
| 3447 VarDeclaration *v = var->isVarDeclaration(); | |
| 3448 if (v && v->needThis()) | |
| 3449 error("need 'this' for address of %s", v->toChars()); | |
| 3450 } | |
| 3451 | |
| 3452 Expression *SymOffExp::semantic(Scope *sc) | |
| 3453 { | |
| 3454 #if LOGSEMANTIC | |
| 3455 printf("SymOffExp::semantic('%s')\n", toChars()); | |
| 3456 #endif | |
| 3457 //var->semantic(sc); | |
| 3458 if (!type) | |
| 3459 type = var->type->pointerTo(); | |
| 3460 VarDeclaration *v = var->isVarDeclaration(); | |
| 3461 if (v) | |
| 3462 { | |
| 3463 v->checkNestedReference(sc, loc); | |
| 3464 v->needsStorage = true; | |
| 3465 } | |
| 3466 return this; | |
| 3467 } | |
| 3468 | |
| 3469 int SymOffExp::isBool(int result) | |
| 3470 { | |
| 3471 return result ? TRUE : FALSE; | |
| 3472 } | |
| 3473 | |
| 3474 void SymOffExp::checkEscape() | |
| 3475 { | |
| 3476 VarDeclaration *v = var->isVarDeclaration(); | |
| 3477 if (v) | |
| 3478 { | |
| 3479 if (!v->isDataseg()) | |
| 3480 error("escaping reference to local variable %s", v->toChars()); | |
| 3481 } | |
| 3482 } | |
| 3483 | |
| 3484 void SymOffExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3485 { | |
| 3486 if (offset) | |
| 3487 buf->printf("(& %s+%u)", var->toChars(), offset); | |
| 3488 else | |
| 3489 buf->printf("& %s", var->toChars()); | |
| 3490 } | |
| 3491 | |
| 3492 /******************************** VarExp **************************/ | |
| 3493 | |
| 3494 VarExp::VarExp(Loc loc, Declaration *var) | |
| 3495 : Expression(loc, TOKvar, sizeof(VarExp)) | |
| 3496 { | |
| 3497 //printf("VarExp(this = %p, '%s')\n", this, var->toChars()); | |
| 3498 this->var = var; | |
| 3499 this->type = var->type; | |
| 3500 } | |
| 3501 | |
| 3502 int VarExp::equals(Object *o) | |
| 3503 { VarExp *ne; | |
| 3504 | |
| 3505 if (this == o || | |
| 3506 (((Expression *)o)->op == TOKvar && | |
| 3507 ((ne = (VarExp *)o), type->equals(ne->type)) && | |
| 3508 var == ne->var)) | |
| 3509 return 1; | |
| 3510 return 0; | |
| 3511 } | |
| 3512 | |
| 3513 Expression *VarExp::semantic(Scope *sc) | |
| 3514 { FuncLiteralDeclaration *fd; | |
| 3515 | |
| 3516 #if LOGSEMANTIC | |
| 3517 printf("VarExp::semantic(%s)\n", toChars()); | |
| 3518 #endif | |
| 3519 if (!type) | |
| 3520 { type = var->type; | |
| 3521 #if 0 | |
| 3522 if (var->storage_class & STClazy) | |
| 3523 { | |
| 3524 TypeFunction *tf = new TypeFunction(NULL, type, 0, LINKd); | |
| 3525 type = new TypeDelegate(tf); | |
| 3526 type = type->semantic(loc, sc); | |
| 3527 } | |
| 3528 #endif | |
| 3529 } | |
| 3530 | |
|
163
a8cd9bc1021a
[svn r179] lots and lots of fixes, much more of tango now compiles/works.
lindquist
parents:
159
diff
changeset
|
3531 // LLVMDC: Fixes bug 1161, http://d.puremagic.com/issues/show_bug.cgi?id=1161 |
|
a8cd9bc1021a
[svn r179] lots and lots of fixes, much more of tango now compiles/works.
lindquist
parents:
159
diff
changeset
|
3532 // check access to VarDeclaration |
|
a8cd9bc1021a
[svn r179] lots and lots of fixes, much more of tango now compiles/works.
lindquist
parents:
159
diff
changeset
|
3533 accessCheck(loc, sc, NULL, var); |
|
a8cd9bc1021a
[svn r179] lots and lots of fixes, much more of tango now compiles/works.
lindquist
parents:
159
diff
changeset
|
3534 |
| 159 | 3535 VarDeclaration *v = var->isVarDeclaration(); |
| 3536 if (v) | |
| 3537 { | |
| 3538 if (v->isConst() && type->toBasetype()->ty != Tsarray && v->init) | |
| 3539 { | |
| 3540 ExpInitializer *ei = v->init->isExpInitializer(); | |
| 3541 if (ei) | |
| 3542 { | |
| 3543 //ei->exp->implicitCastTo(sc, type)->print(); | |
| 3544 return ei->exp->implicitCastTo(sc, type); | |
| 3545 } | |
| 3546 } | |
| 3547 v->checkNestedReference(sc, loc); | |
| 3548 } | |
| 3549 #if 0 | |
| 3550 else if ((fd = var->isFuncLiteralDeclaration()) != NULL) | |
| 3551 { Expression *e; | |
| 3552 e = new FuncExp(loc, fd); | |
| 3553 e->type = type; | |
| 3554 return e; | |
| 3555 } | |
| 3556 #endif | |
| 3557 return this; | |
| 3558 } | |
| 3559 | |
| 3560 char *VarExp::toChars() | |
| 3561 { | |
| 3562 return var->toChars(); | |
| 3563 } | |
| 3564 | |
| 3565 void VarExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3566 { | |
| 3567 buf->writestring(var->toChars()); | |
| 3568 } | |
| 3569 | |
| 3570 void VarExp::checkEscape() | |
| 3571 { | |
| 3572 VarDeclaration *v = var->isVarDeclaration(); | |
| 3573 if (v) | |
| 3574 { Type *tb = v->type->toBasetype(); | |
| 3575 // if reference type | |
| 3576 if (tb->ty == Tarray || tb->ty == Tsarray || tb->ty == Tclass) | |
| 3577 { | |
| 3578 if ((v->isAuto() || v->isScope()) && !v->noauto) | |
| 3579 error("escaping reference to auto local %s", v->toChars()); | |
| 3580 else if (v->storage_class & STCvariadic) | |
| 3581 error("escaping reference to variadic parameter %s", v->toChars()); | |
| 3582 } | |
| 3583 } | |
| 3584 } | |
| 3585 | |
| 3586 Expression *VarExp::toLvalue(Scope *sc, Expression *e) | |
| 3587 { | |
| 3588 #if 0 | |
| 3589 tym = tybasic(e1->ET->Tty); | |
| 3590 if (!(tyscalar(tym) || | |
| 3591 tym == TYstruct || | |
| 3592 tym == TYarray && e->Eoper == TOKaddr)) | |
| 3593 synerr(EM_lvalue); // lvalue expected | |
| 3594 #endif | |
| 3595 if (var->storage_class & STClazy) | |
| 3596 error("lazy variables cannot be lvalues"); | |
| 3597 return this; | |
| 3598 } | |
| 3599 | |
| 3600 Expression *VarExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 3601 { | |
| 3602 //printf("VarExp::modifiableLvalue('%s')\n", var->toChars()); | |
| 3603 if (sc->incontract && var->isParameter()) | |
| 3604 error("cannot modify parameter '%s' in contract", var->toChars()); | |
| 3605 | |
| 3606 if (type && type->toBasetype()->ty == Tsarray) | |
| 3607 error("cannot change reference to static array '%s'", var->toChars()); | |
| 3608 | |
| 3609 VarDeclaration *v = var->isVarDeclaration(); | |
| 3610 if (v && v->canassign == 0 && | |
| 3611 (var->isConst() || (global.params.Dversion > 1 && var->isFinal()))) | |
| 3612 error("cannot modify final variable '%s'", var->toChars()); | |
| 3613 v->needsStorage = true; | |
| 3614 | |
| 3615 if (var->isCtorinit()) | |
| 3616 { // It's only modifiable if inside the right constructor | |
| 3617 Dsymbol *s = sc->func; | |
| 3618 while (1) | |
| 3619 { | |
| 3620 FuncDeclaration *fd = NULL; | |
| 3621 if (s) | |
| 3622 fd = s->isFuncDeclaration(); | |
| 3623 if (fd && | |
| 3624 ((fd->isCtorDeclaration() && var->storage_class & STCfield) || | |
| 3625 (fd->isStaticCtorDeclaration() && !(var->storage_class & STCfield))) && | |
| 3626 fd->toParent() == var->toParent() | |
| 3627 ) | |
| 3628 { | |
| 3629 VarDeclaration *v = var->isVarDeclaration(); | |
| 3630 assert(v); | |
| 3631 v->ctorinit = 1; | |
| 3632 //printf("setting ctorinit\n"); | |
| 3633 } | |
| 3634 else | |
| 3635 { | |
| 3636 if (s) | |
| 3637 { s = s->toParent2(); | |
| 3638 continue; | |
| 3639 } | |
| 3640 else | |
| 3641 { | |
| 3642 const char *p = var->isStatic() ? "static " : ""; | |
| 3643 error("can only initialize %sconst %s inside %sconstructor", | |
| 3644 p, var->toChars(), p); | |
| 3645 } | |
| 3646 } | |
| 3647 break; | |
| 3648 } | |
| 3649 } | |
| 3650 | |
| 3651 // See if this expression is a modifiable lvalue (i.e. not const) | |
| 3652 return toLvalue(sc, e); | |
| 3653 } | |
| 3654 | |
| 3655 | |
| 3656 /******************************** TupleExp **************************/ | |
| 3657 | |
| 3658 TupleExp::TupleExp(Loc loc, Expressions *exps) | |
| 3659 : Expression(loc, TOKtuple, sizeof(TupleExp)) | |
| 3660 { | |
| 3661 //printf("TupleExp(this = %p)\n", this); | |
| 3662 this->exps = exps; | |
| 3663 this->type = NULL; | |
| 3664 } | |
| 3665 | |
| 3666 | |
| 3667 TupleExp::TupleExp(Loc loc, TupleDeclaration *tup) | |
| 3668 : Expression(loc, TOKtuple, sizeof(TupleExp)) | |
| 3669 { | |
| 3670 exps = new Expressions(); | |
| 3671 type = NULL; | |
| 3672 | |
| 3673 exps->reserve(tup->objects->dim); | |
| 3674 for (size_t i = 0; i < tup->objects->dim; i++) | |
| 3675 { Object *o = (Object *)tup->objects->data[i]; | |
| 3676 if (o->dyncast() == DYNCAST_EXPRESSION) | |
| 3677 { | |
| 3678 Expression *e = (Expression *)o; | |
| 3679 e = e->syntaxCopy(); | |
| 3680 exps->push(e); | |
| 3681 } | |
| 3682 else if (o->dyncast() == DYNCAST_DSYMBOL) | |
| 3683 { | |
| 3684 Dsymbol *s = (Dsymbol *)o; | |
| 3685 Expression *e = new DsymbolExp(loc, s); | |
| 3686 exps->push(e); | |
| 3687 } | |
| 3688 else if (o->dyncast() == DYNCAST_TYPE) | |
| 3689 { | |
| 3690 Type *t = (Type *)o; | |
| 3691 Expression *e = new TypeExp(loc, t); | |
| 3692 exps->push(e); | |
| 3693 } | |
| 3694 else | |
| 3695 { | |
| 3696 error("%s is not an expression", o->toChars()); | |
| 3697 } | |
| 3698 } | |
| 3699 } | |
| 3700 | |
| 3701 int TupleExp::equals(Object *o) | |
| 3702 { TupleExp *ne; | |
| 3703 | |
| 3704 if (this == o) | |
| 3705 return 1; | |
| 3706 if (((Expression *)o)->op == TOKtuple) | |
| 3707 { | |
| 3708 TupleExp *te = (TupleExp *)o; | |
| 3709 if (exps->dim != te->exps->dim) | |
| 3710 return 0; | |
| 3711 for (size_t i = 0; i < exps->dim; i++) | |
| 3712 { Expression *e1 = (Expression *)exps->data[i]; | |
| 3713 Expression *e2 = (Expression *)te->exps->data[i]; | |
| 3714 | |
| 3715 if (!e1->equals(e2)) | |
| 3716 return 0; | |
| 3717 } | |
| 3718 return 1; | |
| 3719 } | |
| 3720 return 0; | |
| 3721 } | |
| 3722 | |
| 3723 Expression *TupleExp::syntaxCopy() | |
| 3724 { | |
| 3725 return new TupleExp(loc, arraySyntaxCopy(exps)); | |
| 3726 } | |
| 3727 | |
| 3728 Expression *TupleExp::semantic(Scope *sc) | |
| 3729 { | |
| 3730 #if LOGSEMANTIC | |
| 3731 printf("+TupleExp::semantic(%s)\n", toChars()); | |
| 3732 #endif | |
| 3733 if (type) | |
| 3734 return this; | |
| 3735 | |
| 3736 // Run semantic() on each argument | |
| 3737 for (size_t i = 0; i < exps->dim; i++) | |
| 3738 { Expression *e = (Expression *)exps->data[i]; | |
| 3739 | |
| 3740 e = e->semantic(sc); | |
| 3741 if (!e->type) | |
| 3742 { error("%s has no value", e->toChars()); | |
| 3743 e->type = Type::terror; | |
| 3744 } | |
| 3745 exps->data[i] = (void *)e; | |
| 3746 } | |
| 3747 | |
| 3748 expandTuples(exps); | |
| 3749 if (0 && exps->dim == 1) | |
| 3750 { | |
| 3751 return (Expression *)exps->data[0]; | |
| 3752 } | |
| 3753 type = new TypeTuple(exps); | |
| 3754 //printf("-TupleExp::semantic(%s)\n", toChars()); | |
| 3755 return this; | |
| 3756 } | |
| 3757 | |
| 3758 void TupleExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3759 { | |
| 3760 buf->writestring("tuple("); | |
| 3761 argsToCBuffer(buf, exps, hgs); | |
| 3762 buf->writeByte(')'); | |
| 3763 } | |
| 3764 | |
| 3765 int TupleExp::checkSideEffect(int flag) | |
| 3766 { int f = 0; | |
| 3767 | |
| 3768 for (int i = 0; i < exps->dim; i++) | |
| 3769 { Expression *e = (Expression *)exps->data[i]; | |
| 3770 | |
| 3771 f |= e->checkSideEffect(2); | |
| 3772 } | |
| 3773 if (flag == 0 && f == 0) | |
| 3774 Expression::checkSideEffect(0); | |
| 3775 return f; | |
| 3776 } | |
| 3777 | |
| 3778 void TupleExp::checkEscape() | |
| 3779 { | |
| 3780 for (size_t i = 0; i < exps->dim; i++) | |
| 3781 { Expression *e = (Expression *)exps->data[i]; | |
| 3782 e->checkEscape(); | |
| 3783 } | |
| 3784 } | |
| 3785 | |
| 3786 /******************************** FuncExp *********************************/ | |
| 3787 | |
| 3788 FuncExp::FuncExp(Loc loc, FuncLiteralDeclaration *fd) | |
| 3789 : Expression(loc, TOKfunction, sizeof(FuncExp)) | |
| 3790 { | |
| 3791 this->fd = fd; | |
| 3792 } | |
| 3793 | |
| 3794 Expression *FuncExp::syntaxCopy() | |
| 3795 { | |
| 3796 return new FuncExp(loc, (FuncLiteralDeclaration *)fd->syntaxCopy(NULL)); | |
| 3797 } | |
| 3798 | |
| 3799 Expression *FuncExp::semantic(Scope *sc) | |
| 3800 { | |
| 3801 #if LOGSEMANTIC | |
| 3802 printf("FuncExp::semantic(%s)\n", toChars()); | |
| 3803 #endif | |
| 3804 if (!type) | |
| 3805 { | |
| 3806 fd->semantic(sc); | |
| 3807 fd->parent = sc->parent; | |
| 3808 if (global.errors) | |
| 3809 { | |
| 3810 if (!fd->type->next) | |
| 3811 fd->type->next = Type::terror; | |
| 3812 } | |
| 3813 else | |
| 3814 { | |
| 3815 fd->semantic2(sc); | |
| 3816 if (!global.errors) | |
| 3817 { | |
| 3818 fd->semantic3(sc); | |
| 3819 | |
| 3820 if (!global.errors && global.params.useInline) | |
| 3821 fd->inlineScan(); | |
| 3822 } | |
| 3823 } | |
| 3824 | |
| 3825 // Type is a "delegate to" or "pointer to" the function literal | |
| 3826 if (fd->isNested()) | |
| 3827 { | |
| 3828 type = new TypeDelegate(fd->type); | |
| 3829 type = type->semantic(loc, sc); | |
| 3830 } | |
| 3831 else | |
| 3832 { | |
| 3833 type = fd->type->pointerTo(); | |
| 3834 } | |
| 3835 } | |
| 3836 return this; | |
| 3837 } | |
| 3838 | |
| 3839 char *FuncExp::toChars() | |
| 3840 { | |
| 3841 return fd->toChars(); | |
| 3842 } | |
| 3843 | |
| 3844 void FuncExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3845 { | |
| 3846 buf->writestring(fd->toChars()); | |
| 3847 } | |
| 3848 | |
| 3849 | |
| 3850 /******************************** DeclarationExp **************************/ | |
| 3851 | |
| 3852 DeclarationExp::DeclarationExp(Loc loc, Dsymbol *declaration) | |
| 3853 : Expression(loc, TOKdeclaration, sizeof(DeclarationExp)) | |
| 3854 { | |
| 3855 this->declaration = declaration; | |
| 3856 } | |
| 3857 | |
| 3858 Expression *DeclarationExp::syntaxCopy() | |
| 3859 { | |
| 3860 return new DeclarationExp(loc, declaration->syntaxCopy(NULL)); | |
| 3861 } | |
| 3862 | |
| 3863 Expression *DeclarationExp::semantic(Scope *sc) | |
| 3864 { | |
| 3865 if (type) | |
| 3866 return this; | |
| 3867 | |
| 3868 #if LOGSEMANTIC | |
| 3869 printf("DeclarationExp::semantic() %s\n", toChars()); | |
| 3870 #endif | |
| 3871 | |
| 3872 /* This is here to support extern(linkage) declaration, | |
| 3873 * where the extern(linkage) winds up being an AttribDeclaration | |
| 3874 * wrapper. | |
| 3875 */ | |
| 3876 Dsymbol *s = declaration; | |
| 3877 | |
| 3878 AttribDeclaration *ad = declaration->isAttribDeclaration(); | |
| 3879 if (ad) | |
| 3880 { | |
| 3881 if (ad->decl && ad->decl->dim == 1) | |
| 3882 s = (Dsymbol *)ad->decl->data[0]; | |
| 3883 } | |
| 3884 | |
| 3885 if (s->isVarDeclaration()) | |
| 3886 { // Do semantic() on initializer first, so: | |
| 3887 // int a = a; | |
| 3888 // will be illegal. | |
| 3889 declaration->semantic(sc); | |
| 3890 s->parent = sc->parent; | |
| 3891 } | |
| 3892 | |
| 3893 //printf("inserting '%s' %p into sc = %p\n", s->toChars(), s, sc); | |
| 3894 // Insert into both local scope and function scope. | |
| 3895 // Must be unique in both. | |
| 3896 if (s->ident) | |
| 3897 { | |
| 3898 if (!sc->insert(s)) | |
| 3899 error("declaration %s is already defined", s->toPrettyChars()); | |
| 3900 else if (sc->func) | |
| 3901 { VarDeclaration *v = s->isVarDeclaration(); | |
| 3902 if ((s->isFuncDeclaration() /*|| v && v->storage_class & STCstatic*/) && | |
| 3903 !sc->func->localsymtab->insert(s)) | |
| 3904 error("declaration %s is already defined in another scope in %s", s->toPrettyChars(), sc->func->toChars()); | |
| 3905 else if (!global.params.useDeprecated) | |
| 3906 { // Disallow shadowing | |
| 3907 | |
| 3908 for (Scope *scx = sc->enclosing; scx && scx->func == sc->func; scx = scx->enclosing) | |
| 3909 { Dsymbol *s2; | |
| 3910 | |
| 3911 if (scx->scopesym && scx->scopesym->symtab && | |
| 3912 (s2 = scx->scopesym->symtab->lookup(s->ident)) != NULL && | |
| 3913 s != s2) | |
| 3914 { | |
| 3915 error("shadowing declaration %s is deprecated", s->toPrettyChars()); | |
| 3916 } | |
| 3917 } | |
| 3918 } | |
| 3919 } | |
| 3920 } | |
| 3921 if (!s->isVarDeclaration()) | |
| 3922 { | |
| 3923 declaration->semantic(sc); | |
| 3924 s->parent = sc->parent; | |
| 3925 } | |
| 3926 if (!global.errors) | |
| 3927 { | |
| 3928 declaration->semantic2(sc); | |
| 3929 if (!global.errors) | |
| 3930 { | |
| 3931 declaration->semantic3(sc); | |
| 3932 | |
| 3933 if (!global.errors && global.params.useInline) | |
| 3934 declaration->inlineScan(); | |
| 3935 } | |
| 3936 } | |
| 3937 | |
| 3938 type = Type::tvoid; | |
| 3939 return this; | |
| 3940 } | |
| 3941 | |
| 3942 int DeclarationExp::checkSideEffect(int flag) | |
| 3943 { | |
| 3944 return 1; | |
| 3945 } | |
| 3946 | |
| 3947 void DeclarationExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3948 { | |
| 3949 declaration->toCBuffer(buf, hgs); | |
| 3950 } | |
| 3951 | |
| 3952 | |
| 3953 /************************ TypeidExp ************************************/ | |
| 3954 | |
| 3955 /* | |
| 3956 * typeid(int) | |
| 3957 */ | |
| 3958 | |
| 3959 TypeidExp::TypeidExp(Loc loc, Type *typeidType) | |
| 3960 : Expression(loc, TOKtypeid, sizeof(TypeidExp)) | |
| 3961 { | |
| 3962 this->typeidType = typeidType; | |
| 3963 } | |
| 3964 | |
| 3965 | |
| 3966 Expression *TypeidExp::syntaxCopy() | |
| 3967 { | |
| 3968 return new TypeidExp(loc, typeidType->syntaxCopy()); | |
| 3969 } | |
| 3970 | |
| 3971 | |
| 3972 Expression *TypeidExp::semantic(Scope *sc) | |
| 3973 { Expression *e; | |
| 3974 | |
| 3975 #if LOGSEMANTIC | |
| 3976 printf("TypeidExp::semantic()\n"); | |
| 3977 #endif | |
| 3978 typeidType = typeidType->semantic(loc, sc); | |
| 3979 e = typeidType->getTypeInfo(sc); | |
| 3980 return e; | |
| 3981 } | |
| 3982 | |
| 3983 void TypeidExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3984 { | |
| 3985 buf->writestring("typeid("); | |
| 3986 typeidType->toCBuffer(buf, NULL, hgs); | |
| 3987 buf->writeByte(')'); | |
| 3988 } | |
| 3989 | |
| 3990 /************************************************************/ | |
| 3991 | |
| 3992 HaltExp::HaltExp(Loc loc) | |
| 3993 : Expression(loc, TOKhalt, sizeof(HaltExp)) | |
| 3994 { | |
| 3995 } | |
| 3996 | |
| 3997 Expression *HaltExp::semantic(Scope *sc) | |
| 3998 { | |
| 3999 #if LOGSEMANTIC | |
| 4000 printf("HaltExp::semantic()\n"); | |
| 4001 #endif | |
| 4002 type = Type::tvoid; | |
| 4003 return this; | |
| 4004 } | |
| 4005 | |
| 4006 int HaltExp::checkSideEffect(int flag) | |
| 4007 { | |
| 4008 return 1; | |
| 4009 } | |
| 4010 | |
| 4011 void HaltExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4012 { | |
| 4013 buf->writestring("halt"); | |
| 4014 } | |
| 4015 | |
| 4016 /************************************************************/ | |
| 4017 | |
| 4018 IsExp::IsExp(Loc loc, Type *targ, Identifier *id, enum TOK tok, | |
| 4019 Type *tspec, enum TOK tok2) | |
| 4020 : Expression(loc, TOKis, sizeof(IsExp)) | |
| 4021 { | |
| 4022 this->targ = targ; | |
| 4023 this->id = id; | |
| 4024 this->tok = tok; | |
| 4025 this->tspec = tspec; | |
| 4026 this->tok2 = tok2; | |
| 4027 } | |
| 4028 | |
| 4029 Expression *IsExp::syntaxCopy() | |
| 4030 { | |
| 4031 return new IsExp(loc, | |
| 4032 targ->syntaxCopy(), | |
| 4033 id, | |
| 4034 tok, | |
| 4035 tspec ? tspec->syntaxCopy() : NULL, | |
| 4036 tok2); | |
| 4037 } | |
| 4038 | |
| 4039 Expression *IsExp::semantic(Scope *sc) | |
| 4040 { Type *tded; | |
| 4041 | |
| 4042 //printf("IsExp::semantic()\n"); | |
| 4043 if (id && !(sc->flags & SCOPEstaticif)) | |
| 4044 error("can only declare type aliases within static if conditionals"); | |
| 4045 | |
| 4046 unsigned errors_save = global.errors; | |
| 4047 global.errors = 0; | |
| 4048 global.gag++; // suppress printing of error messages | |
| 4049 targ = targ->semantic(loc, sc); | |
| 4050 global.gag--; | |
| 4051 unsigned gerrors = global.errors; | |
| 4052 global.errors = errors_save; | |
| 4053 | |
| 4054 if (gerrors) // if any errors happened | |
| 4055 { // then condition is false | |
| 4056 goto Lno; | |
| 4057 } | |
| 4058 else if (tok2 != TOKreserved) | |
| 4059 { | |
| 4060 switch (tok2) | |
| 4061 { | |
| 4062 case TOKtypedef: | |
| 4063 if (targ->ty != Ttypedef) | |
| 4064 goto Lno; | |
| 4065 tded = ((TypeTypedef *)targ)->sym->basetype; | |
| 4066 break; | |
| 4067 | |
| 4068 case TOKstruct: | |
| 4069 if (targ->ty != Tstruct) | |
| 4070 goto Lno; | |
| 4071 if (((TypeStruct *)targ)->sym->isUnionDeclaration()) | |
| 4072 goto Lno; | |
| 4073 tded = targ; | |
| 4074 break; | |
| 4075 | |
| 4076 case TOKunion: | |
| 4077 if (targ->ty != Tstruct) | |
| 4078 goto Lno; | |
| 4079 if (!((TypeStruct *)targ)->sym->isUnionDeclaration()) | |
| 4080 goto Lno; | |
| 4081 tded = targ; | |
| 4082 break; | |
| 4083 | |
| 4084 case TOKclass: | |
| 4085 if (targ->ty != Tclass) | |
| 4086 goto Lno; | |
| 4087 if (((TypeClass *)targ)->sym->isInterfaceDeclaration()) | |
| 4088 goto Lno; | |
| 4089 tded = targ; | |
| 4090 break; | |
| 4091 | |
| 4092 case TOKinterface: | |
| 4093 if (targ->ty != Tclass) | |
| 4094 goto Lno; | |
| 4095 if (!((TypeClass *)targ)->sym->isInterfaceDeclaration()) | |
| 4096 goto Lno; | |
| 4097 tded = targ; | |
| 4098 break; | |
| 4099 | |
| 4100 case TOKsuper: | |
| 4101 // If class or interface, get the base class and interfaces | |
| 4102 if (targ->ty != Tclass) | |
| 4103 goto Lno; | |
| 4104 else | |
| 4105 { ClassDeclaration *cd = ((TypeClass *)targ)->sym; | |
| 4106 Arguments *args = new Arguments; | |
| 4107 args->reserve(cd->baseclasses.dim); | |
| 4108 for (size_t i = 0; i < cd->baseclasses.dim; i++) | |
| 4109 { BaseClass *b = (BaseClass *)cd->baseclasses.data[i]; | |
| 4110 args->push(new Argument(STCin, b->type, NULL, NULL)); | |
| 4111 } | |
| 4112 tded = new TypeTuple(args); | |
| 4113 } | |
| 4114 break; | |
| 4115 | |
| 4116 case TOKenum: | |
| 4117 if (targ->ty != Tenum) | |
| 4118 goto Lno; | |
| 4119 tded = ((TypeEnum *)targ)->sym->memtype; | |
| 4120 break; | |
| 4121 | |
| 4122 case TOKdelegate: | |
| 4123 if (targ->ty != Tdelegate) | |
| 4124 goto Lno; | |
| 4125 tded = targ->next; // the underlying function type | |
| 4126 break; | |
| 4127 | |
| 4128 case TOKfunction: | |
| 4129 { if (targ->ty != Tfunction) | |
| 4130 goto Lno; | |
| 4131 tded = targ; | |
| 4132 | |
| 4133 /* Generate tuple from function parameter types. | |
| 4134 */ | |
| 4135 assert(tded->ty == Tfunction); | |
| 4136 Arguments *params = ((TypeFunction *)tded)->parameters; | |
| 4137 size_t dim = Argument::dim(params); | |
| 4138 Arguments *args = new Arguments; | |
| 4139 args->reserve(dim); | |
| 4140 for (size_t i = 0; i < dim; i++) | |
| 4141 { Argument *arg = Argument::getNth(params, i); | |
| 4142 assert(arg && arg->type); | |
| 4143 args->push(new Argument(arg->storageClass, arg->type, NULL, NULL)); | |
| 4144 } | |
| 4145 tded = new TypeTuple(args); | |
| 4146 break; | |
| 4147 } | |
| 4148 case TOKreturn: | |
| 4149 /* Get the 'return type' for the function, | |
| 4150 * delegate, or pointer to function. | |
| 4151 */ | |
| 4152 if (targ->ty == Tfunction) | |
| 4153 tded = targ->next; | |
| 4154 else if (targ->ty == Tdelegate) | |
| 4155 tded = targ->next->next; | |
| 4156 else if (targ->ty == Tpointer && targ->next->ty == Tfunction) | |
| 4157 tded = targ->next->next; | |
| 4158 else | |
| 4159 goto Lno; | |
| 4160 break; | |
| 4161 | |
| 4162 default: | |
| 4163 assert(0); | |
| 4164 } | |
| 4165 goto Lyes; | |
| 4166 } | |
| 4167 else if (id && tspec) | |
| 4168 { | |
| 4169 /* Evaluate to TRUE if targ matches tspec. | |
| 4170 * If TRUE, declare id as an alias for the specialized type. | |
| 4171 */ | |
| 4172 | |
| 4173 MATCH m; | |
| 4174 TemplateTypeParameter tp(loc, id, NULL, NULL); | |
| 4175 | |
| 4176 TemplateParameters parameters; | |
| 4177 parameters.setDim(1); | |
| 4178 parameters.data[0] = (void *)&tp; | |
| 4179 | |
| 4180 Objects dedtypes; | |
| 4181 dedtypes.setDim(1); | |
| 4182 dedtypes.data[0] = NULL; | |
| 4183 | |
| 4184 m = targ->deduceType(NULL, tspec, ¶meters, &dedtypes); | |
| 4185 if (m == MATCHnomatch || | |
| 4186 (m != MATCHexact && tok == TOKequal)) | |
| 4187 goto Lno; | |
| 4188 else | |
| 4189 { | |
| 4190 assert(dedtypes.dim == 1); | |
| 4191 tded = (Type *)dedtypes.data[0]; | |
| 4192 if (!tded) | |
| 4193 tded = targ; | |
| 4194 goto Lyes; | |
| 4195 } | |
| 4196 } | |
| 4197 else if (id) | |
| 4198 { | |
| 4199 /* Declare id as an alias for type targ. Evaluate to TRUE | |
| 4200 */ | |
| 4201 tded = targ; | |
| 4202 goto Lyes; | |
| 4203 } | |
| 4204 else if (tspec) | |
| 4205 { | |
| 4206 /* Evaluate to TRUE if targ matches tspec | |
| 4207 */ | |
| 4208 tspec = tspec->semantic(loc, sc); | |
| 4209 //printf("targ = %s\n", targ->toChars()); | |
| 4210 //printf("tspec = %s\n", tspec->toChars()); | |
| 4211 if (tok == TOKcolon) | |
| 4212 { if (targ->implicitConvTo(tspec)) | |
| 4213 goto Lyes; | |
| 4214 else | |
| 4215 goto Lno; | |
| 4216 } | |
| 4217 else /* == */ | |
| 4218 { if (targ->equals(tspec)) | |
| 4219 goto Lyes; | |
| 4220 else | |
| 4221 goto Lno; | |
| 4222 } | |
| 4223 } | |
| 4224 | |
| 4225 Lyes: | |
| 4226 if (id) | |
| 4227 { | |
| 4228 Dsymbol *s = new AliasDeclaration(loc, id, tded); | |
| 4229 s->semantic(sc); | |
| 4230 sc->insert(s); | |
| 4231 if (sc->sd) | |
| 4232 s->addMember(sc, sc->sd, 1); | |
| 4233 } | |
| 4234 return new IntegerExp(1); | |
| 4235 | |
| 4236 Lno: | |
| 4237 return new IntegerExp(0); | |
| 4238 } | |
| 4239 | |
| 4240 void IsExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4241 { | |
| 4242 buf->writestring("is("); | |
| 4243 targ->toCBuffer(buf, id, hgs); | |
| 4244 if (tok2 != TOKreserved) | |
| 4245 { | |
| 4246 buf->printf(" %s %s", Token::toChars(tok), Token::toChars(tok2)); | |
| 4247 } | |
| 4248 else if (tspec) | |
| 4249 { | |
| 4250 if (tok == TOKcolon) | |
| 4251 buf->writestring(" : "); | |
| 4252 else | |
| 4253 buf->writestring(" == "); | |
| 4254 tspec->toCBuffer(buf, NULL, hgs); | |
| 4255 } | |
| 4256 #if V2 | |
| 4257 if (parameters) | |
| 4258 { // First parameter is already output, so start with second | |
| 4259 for (int i = 1; i < parameters->dim; i++) | |
| 4260 { | |
| 4261 buf->writeByte(','); | |
| 4262 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 4263 tp->toCBuffer(buf, hgs); | |
| 4264 } | |
| 4265 } | |
| 4266 #endif | |
| 4267 buf->writeByte(')'); | |
| 4268 } | |
| 4269 | |
| 4270 | |
| 4271 /************************************************************/ | |
| 4272 | |
| 4273 UnaExp::UnaExp(Loc loc, enum TOK op, int size, Expression *e1) | |
| 4274 : Expression(loc, op, size) | |
| 4275 { | |
| 4276 this->e1 = e1; | |
| 4277 } | |
| 4278 | |
| 4279 Expression *UnaExp::syntaxCopy() | |
| 4280 { UnaExp *e; | |
| 4281 | |
| 4282 e = (UnaExp *)copy(); | |
| 4283 e->type = NULL; | |
| 4284 e->e1 = e->e1->syntaxCopy(); | |
| 4285 return e; | |
| 4286 } | |
| 4287 | |
| 4288 Expression *UnaExp::semantic(Scope *sc) | |
| 4289 { | |
| 4290 #if LOGSEMANTIC | |
| 4291 printf("UnaExp::semantic('%s')\n", toChars()); | |
| 4292 #endif | |
| 4293 e1 = e1->semantic(sc); | |
| 4294 // if (!e1->type) | |
| 4295 // error("%s has no value", e1->toChars()); | |
| 4296 return this; | |
| 4297 } | |
| 4298 | |
| 4299 void UnaExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4300 { | |
| 4301 buf->writestring(Token::toChars(op)); | |
| 4302 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 4303 } | |
| 4304 | |
| 4305 /************************************************************/ | |
| 4306 | |
| 4307 BinExp::BinExp(Loc loc, enum TOK op, int size, Expression *e1, Expression *e2) | |
| 4308 : Expression(loc, op, size) | |
| 4309 { | |
| 4310 this->e1 = e1; | |
| 4311 this->e2 = e2; | |
| 4312 } | |
| 4313 | |
| 4314 Expression *BinExp::syntaxCopy() | |
| 4315 { BinExp *e; | |
| 4316 | |
| 4317 e = (BinExp *)copy(); | |
| 4318 e->type = NULL; | |
| 4319 e->e1 = e->e1->syntaxCopy(); | |
| 4320 e->e2 = e->e2->syntaxCopy(); | |
| 4321 return e; | |
| 4322 } | |
| 4323 | |
| 4324 Expression *BinExp::semantic(Scope *sc) | |
| 4325 { | |
| 4326 #if LOGSEMANTIC | |
| 4327 printf("BinExp::semantic('%s')\n", toChars()); | |
| 4328 #endif | |
| 4329 e1 = e1->semantic(sc); | |
| 4330 if (!e1->type) | |
| 4331 { | |
| 4332 error("%s has no value", e1->toChars()); | |
| 4333 e1->type = Type::terror; | |
| 4334 } | |
| 4335 e2 = e2->semantic(sc); | |
| 4336 if (!e2->type) | |
| 4337 { | |
| 4338 error("%s has no value", e2->toChars()); | |
| 4339 e2->type = Type::terror; | |
| 4340 } | |
| 4341 assert(e1->type); | |
| 4342 return this; | |
| 4343 } | |
| 4344 | |
| 4345 Expression *BinExp::semanticp(Scope *sc) | |
| 4346 { | |
| 4347 BinExp::semantic(sc); | |
| 4348 e1 = resolveProperties(sc, e1); | |
| 4349 e2 = resolveProperties(sc, e2); | |
| 4350 return this; | |
| 4351 } | |
| 4352 | |
| 4353 /*************************** | |
| 4354 * Common semantic routine for some xxxAssignExp's. | |
| 4355 */ | |
| 4356 | |
| 4357 Expression *BinExp::commonSemanticAssign(Scope *sc) | |
| 4358 { Expression *e; | |
| 4359 | |
| 4360 if (!type) | |
| 4361 { | |
| 4362 BinExp::semantic(sc); | |
| 4363 e2 = resolveProperties(sc, e2); | |
| 4364 | |
| 4365 e = op_overload(sc); | |
| 4366 if (e) | |
| 4367 return e; | |
| 4368 | |
| 4369 e1 = e1->modifiableLvalue(sc, e1); | |
| 4370 e1->checkScalar(); | |
| 4371 type = e1->type; | |
| 4372 if (type->toBasetype()->ty == Tbool) | |
| 4373 { | |
| 4374 error("operator not allowed on bool expression %s", toChars()); | |
| 4375 } | |
| 4376 typeCombine(sc); | |
| 4377 e1->checkArithmetic(); | |
| 4378 e2->checkArithmetic(); | |
| 4379 | |
| 4380 if (op == TOKmodass && e2->type->iscomplex()) | |
| 4381 { error("cannot perform modulo complex arithmetic"); | |
| 4382 return new IntegerExp(0); | |
| 4383 } | |
| 4384 } | |
| 4385 return this; | |
| 4386 } | |
| 4387 | |
| 4388 Expression *BinExp::commonSemanticAssignIntegral(Scope *sc) | |
| 4389 { Expression *e; | |
| 4390 | |
| 4391 if (!type) | |
| 4392 { | |
| 4393 BinExp::semantic(sc); | |
| 4394 e2 = resolveProperties(sc, e2); | |
| 4395 | |
| 4396 e = op_overload(sc); | |
| 4397 if (e) | |
| 4398 return e; | |
| 4399 | |
| 4400 e1 = e1->modifiableLvalue(sc, e1); | |
| 4401 e1->checkScalar(); | |
| 4402 type = e1->type; | |
| 4403 if (type->toBasetype()->ty == Tbool) | |
| 4404 { | |
| 4405 e2 = e2->implicitCastTo(sc, type); | |
| 4406 } | |
| 4407 | |
| 4408 typeCombine(sc); | |
| 4409 e1->checkIntegral(); | |
| 4410 e2->checkIntegral(); | |
| 4411 } | |
| 4412 return this; | |
| 4413 } | |
| 4414 | |
| 4415 int BinExp::checkSideEffect(int flag) | |
| 4416 { | |
| 4417 if (op == TOKplusplus || | |
| 4418 op == TOKminusminus || | |
| 4419 op == TOKassign || | |
| 4420 op == TOKconstruct || | |
| 4421 op == TOKblit || | |
| 4422 op == TOKaddass || | |
| 4423 op == TOKminass || | |
| 4424 op == TOKcatass || | |
| 4425 op == TOKmulass || | |
| 4426 op == TOKdivass || | |
| 4427 op == TOKmodass || | |
| 4428 op == TOKshlass || | |
| 4429 op == TOKshrass || | |
| 4430 op == TOKushrass || | |
| 4431 op == TOKandass || | |
| 4432 op == TOKorass || | |
| 4433 op == TOKxorass || | |
| 4434 op == TOKin || | |
| 4435 op == TOKremove) | |
| 4436 return 1; | |
| 4437 return Expression::checkSideEffect(flag); | |
| 4438 } | |
| 4439 | |
| 4440 void BinExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4441 { | |
| 4442 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 4443 buf->writeByte(' '); | |
| 4444 buf->writestring(Token::toChars(op)); | |
| 4445 buf->writeByte(' '); | |
| 4446 expToCBuffer(buf, hgs, e2, (enum PREC)(precedence[op] + 1)); | |
| 4447 } | |
| 4448 | |
| 4449 int BinExp::isunsigned() | |
| 4450 { | |
| 4451 return e1->type->isunsigned() || e2->type->isunsigned(); | |
| 4452 } | |
| 4453 | |
| 4454 void BinExp::incompatibleTypes() | |
| 4455 { | |
| 4456 error("incompatible types for ((%s) %s (%s)): '%s' and '%s'", | |
| 4457 e1->toChars(), Token::toChars(op), e2->toChars(), | |
| 4458 e1->type->toChars(), e2->type->toChars()); | |
| 4459 } | |
| 4460 | |
| 4461 /************************************************************/ | |
| 4462 | |
| 4463 CompileExp::CompileExp(Loc loc, Expression *e) | |
| 4464 : UnaExp(loc, TOKmixin, sizeof(CompileExp), e) | |
| 4465 { | |
| 4466 } | |
| 4467 | |
| 4468 Expression *CompileExp::semantic(Scope *sc) | |
| 4469 { | |
| 4470 #if LOGSEMANTIC | |
| 4471 printf("CompileExp::semantic('%s')\n", toChars()); | |
| 4472 #endif | |
| 4473 UnaExp::semantic(sc); | |
| 4474 e1 = resolveProperties(sc, e1); | |
| 4475 e1 = e1->optimize(WANTvalue | WANTinterpret); | |
| 4476 if (e1->op != TOKstring) | |
| 4477 { error("argument to mixin must be a string, not (%s)", e1->toChars()); | |
| 4478 type = Type::terror; | |
| 4479 return this; | |
| 4480 } | |
| 4481 StringExp *se = (StringExp *)e1; | |
| 4482 se = se->toUTF8(sc); | |
| 4483 Parser p(sc->module, (unsigned char *)se->string, se->len, 0); | |
| 4484 p.loc = loc; | |
| 4485 p.nextToken(); | |
| 4486 Expression *e = p.parseExpression(); | |
| 4487 if (p.token.value != TOKeof) | |
| 4488 error("incomplete mixin expression (%s)", se->toChars()); | |
| 4489 return e->semantic(sc); | |
| 4490 } | |
| 4491 | |
| 4492 void CompileExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4493 { | |
| 4494 buf->writestring("mixin("); | |
| 4495 expToCBuffer(buf, hgs, e1, PREC_assign); | |
| 4496 buf->writeByte(')'); | |
| 4497 } | |
| 4498 | |
| 4499 /************************************************************/ | |
| 4500 | |
| 4501 FileExp::FileExp(Loc loc, Expression *e) | |
| 4502 : UnaExp(loc, TOKmixin, sizeof(FileExp), e) | |
| 4503 { | |
| 4504 } | |
| 4505 | |
| 4506 Expression *FileExp::semantic(Scope *sc) | |
| 4507 { char *name; | |
| 4508 StringExp *se; | |
| 4509 | |
| 4510 #if LOGSEMANTIC | |
| 4511 printf("FileExp::semantic('%s')\n", toChars()); | |
| 4512 #endif | |
| 4513 UnaExp::semantic(sc); | |
| 4514 e1 = resolveProperties(sc, e1); | |
| 4515 e1 = e1->optimize(WANTvalue); | |
| 4516 if (e1->op != TOKstring) | |
| 4517 { error("file name argument must be a string, not (%s)", e1->toChars()); | |
| 4518 goto Lerror; | |
| 4519 } | |
| 4520 se = (StringExp *)e1; | |
| 4521 se = se->toUTF8(sc); | |
| 4522 name = (char *)se->string; | |
| 4523 | |
| 4524 if (!global.params.fileImppath) | |
| 4525 { error("need -Jpath switch to import text file %s", name); | |
| 4526 goto Lerror; | |
| 4527 } | |
| 4528 | |
| 4529 if (name != FileName::name(name)) | |
| 4530 { error("use -Jpath switch to provide path for filename %s", name); | |
| 4531 goto Lerror; | |
| 4532 } | |
| 4533 | |
| 4534 name = FileName::searchPath(global.filePath, name, 0); | |
| 4535 if (!name) | |
| 4536 { error("file %s cannot be found, check -Jpath", se->toChars()); | |
| 4537 goto Lerror; | |
| 4538 } | |
| 4539 | |
| 4540 if (global.params.verbose) | |
| 4541 printf("file %s\t(%s)\n", se->string, name); | |
| 4542 | |
| 4543 { File f(name); | |
| 4544 if (f.read()) | |
| 4545 { error("cannot read file %s", f.toChars()); | |
| 4546 goto Lerror; | |
| 4547 } | |
| 4548 else | |
| 4549 { | |
| 4550 f.ref = 1; | |
| 4551 se = new StringExp(loc, f.buffer, f.len); | |
| 4552 } | |
| 4553 } | |
| 4554 Lret: | |
| 4555 return se->semantic(sc); | |
| 4556 | |
| 4557 Lerror: | |
| 4558 se = new StringExp(loc, ""); | |
| 4559 goto Lret; | |
| 4560 } | |
| 4561 | |
| 4562 void FileExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4563 { | |
| 4564 buf->writestring("import("); | |
| 4565 expToCBuffer(buf, hgs, e1, PREC_assign); | |
| 4566 buf->writeByte(')'); | |
| 4567 } | |
| 4568 | |
| 4569 /************************************************************/ | |
| 4570 | |
| 4571 AssertExp::AssertExp(Loc loc, Expression *e, Expression *msg) | |
| 4572 : UnaExp(loc, TOKassert, sizeof(AssertExp), e) | |
| 4573 { | |
| 4574 this->msg = msg; | |
| 4575 } | |
| 4576 | |
| 4577 Expression *AssertExp::syntaxCopy() | |
| 4578 { | |
| 4579 AssertExp *ae = new AssertExp(loc, e1->syntaxCopy(), | |
| 4580 msg ? msg->syntaxCopy() : NULL); | |
| 4581 return ae; | |
| 4582 } | |
| 4583 | |
| 4584 Expression *AssertExp::semantic(Scope *sc) | |
| 4585 { | |
| 4586 #if LOGSEMANTIC | |
| 4587 printf("AssertExp::semantic('%s')\n", toChars()); | |
| 4588 #endif | |
| 4589 UnaExp::semantic(sc); | |
| 4590 e1 = resolveProperties(sc, e1); | |
| 4591 // BUG: see if we can do compile time elimination of the Assert | |
| 4592 e1 = e1->optimize(WANTvalue); | |
| 4593 e1 = e1->checkToBoolean(); | |
| 4594 if (msg) | |
| 4595 { | |
| 4596 msg = msg->semantic(sc); | |
| 4597 msg = resolveProperties(sc, msg); | |
| 4598 msg = msg->implicitCastTo(sc, Type::tchar->arrayOf()); | |
| 4599 msg = msg->optimize(WANTvalue); | |
| 4600 } | |
| 4601 if (e1->isBool(FALSE)) | |
| 4602 { | |
| 4603 FuncDeclaration *fd = sc->parent->isFuncDeclaration(); | |
| 4604 fd->hasReturnExp |= 4; | |
| 4605 | |
| 4606 if (!global.params.useAssert) | |
| 4607 { Expression *e = new HaltExp(loc); | |
| 4608 e = e->semantic(sc); | |
| 4609 return e; | |
| 4610 } | |
| 4611 } | |
| 4612 type = Type::tvoid; | |
| 4613 return this; | |
| 4614 } | |
| 4615 | |
| 4616 int AssertExp::checkSideEffect(int flag) | |
| 4617 { | |
| 4618 return 1; | |
| 4619 } | |
| 4620 | |
| 4621 void AssertExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4622 { | |
| 4623 buf->writestring("assert("); | |
| 4624 expToCBuffer(buf, hgs, e1, PREC_assign); | |
| 4625 if (msg) | |
| 4626 { | |
| 4627 buf->writeByte(','); | |
| 4628 expToCBuffer(buf, hgs, msg, PREC_assign); | |
| 4629 } | |
| 4630 buf->writeByte(')'); | |
| 4631 } | |
| 4632 | |
| 4633 /************************************************************/ | |
| 4634 | |
| 4635 DotIdExp::DotIdExp(Loc loc, Expression *e, Identifier *ident) | |
| 4636 : UnaExp(loc, TOKdot, sizeof(DotIdExp), e) | |
| 4637 { | |
| 4638 this->ident = ident; | |
| 4639 } | |
| 4640 | |
| 4641 Expression *DotIdExp::semantic(Scope *sc) | |
| 4642 { Expression *e; | |
| 4643 Expression *eleft; | |
| 4644 Expression *eright; | |
| 4645 | |
| 4646 #if LOGSEMANTIC | |
| 4647 printf("DotIdExp::semantic(this = %p, '%s')\n", this, toChars()); | |
| 4648 //printf("e1->op = %d, '%s'\n", e1->op, Token::toChars(e1->op)); | |
| 4649 #endif | |
| 4650 | |
| 4651 //{ static int z; fflush(stdout); if (++z == 10) *(char*)0=0; } | |
| 4652 | |
| 4653 #if 0 | |
| 4654 /* Don't do semantic analysis if we'll be converting | |
| 4655 * it to a string. | |
| 4656 */ | |
| 4657 if (ident == Id::stringof) | |
| 4658 { char *s = e1->toChars(); | |
| 4659 e = new StringExp(loc, s, strlen(s), 'c'); | |
| 4660 e = e->semantic(sc); | |
| 4661 return e; | |
| 4662 } | |
| 4663 #endif | |
| 4664 | |
| 4665 /* Special case: rewrite this.id and super.id | |
| 4666 * to be classtype.id and baseclasstype.id | |
| 4667 * if we have no this pointer. | |
| 4668 */ | |
| 4669 if ((e1->op == TOKthis || e1->op == TOKsuper) && !hasThis(sc)) | |
| 4670 { ClassDeclaration *cd; | |
| 4671 StructDeclaration *sd; | |
| 4672 AggregateDeclaration *ad; | |
| 4673 | |
| 4674 ad = sc->getStructClassScope(); | |
| 4675 if (ad) | |
| 4676 { | |
| 4677 cd = ad->isClassDeclaration(); | |
| 4678 if (cd) | |
| 4679 { | |
| 4680 if (e1->op == TOKthis) | |
| 4681 { | |
| 4682 e = new TypeDotIdExp(loc, cd->type, ident); | |
| 4683 return e->semantic(sc); | |
| 4684 } | |
| 4685 else if (cd->baseClass && e1->op == TOKsuper) | |
| 4686 { | |
| 4687 e = new TypeDotIdExp(loc, cd->baseClass->type, ident); | |
| 4688 return e->semantic(sc); | |
| 4689 } | |
| 4690 } | |
| 4691 else | |
| 4692 { | |
| 4693 sd = ad->isStructDeclaration(); | |
| 4694 if (sd) | |
| 4695 { | |
| 4696 if (e1->op == TOKthis) | |
| 4697 { | |
| 4698 e = new TypeDotIdExp(loc, sd->type, ident); | |
| 4699 return e->semantic(sc); | |
| 4700 } | |
| 4701 } | |
| 4702 } | |
| 4703 } | |
| 4704 } | |
| 4705 | |
| 4706 UnaExp::semantic(sc); | |
| 4707 | |
| 4708 if (e1->op == TOKdotexp) | |
| 4709 { | |
| 4710 DotExp *de = (DotExp *)e1; | |
| 4711 eleft = de->e1; | |
| 4712 eright = de->e2; | |
| 4713 } | |
| 4714 else | |
| 4715 { | |
| 4716 e1 = resolveProperties(sc, e1); | |
| 4717 eleft = NULL; | |
| 4718 eright = e1; | |
| 4719 } | |
| 4720 | |
| 4721 if (e1->op == TOKtuple && ident == Id::length) | |
| 4722 { | |
| 4723 TupleExp *te = (TupleExp *)e1; | |
| 4724 e = new IntegerExp(loc, te->exps->dim, Type::tsize_t); | |
| 4725 return e; | |
| 4726 } | |
| 4727 | |
| 4728 if (eright->op == TOKimport) // also used for template alias's | |
| 4729 { | |
| 4730 Dsymbol *s; | |
| 4731 ScopeExp *ie = (ScopeExp *)eright; | |
| 4732 | |
| 4733 s = ie->sds->search(loc, ident, 0); | |
| 4734 if (s) | |
| 4735 { | |
| 4736 s = s->toAlias(); | |
| 4737 checkDeprecated(sc, s); | |
| 4738 | |
| 4739 EnumMember *em = s->isEnumMember(); | |
| 4740 if (em) | |
| 4741 { | |
| 4742 e = em->value; | |
| 4743 e = e->semantic(sc); | |
| 4744 return e; | |
| 4745 } | |
| 4746 | |
| 4747 VarDeclaration *v = s->isVarDeclaration(); | |
| 4748 if (v) | |
| 4749 { | |
| 4750 //printf("DotIdExp:: Identifier '%s' is a variable, type '%s'\n", toChars(), v->type->toChars()); | |
| 4751 if (v->inuse) | |
| 4752 { | |
| 4753 error("circular reference to '%s'", v->toChars()); | |
| 4754 type = Type::tint32; | |
| 4755 return this; | |
| 4756 } | |
| 4757 type = v->type; | |
| 4758 if (v->isConst()) | |
| 4759 { | |
| 4760 if (v->init) | |
| 4761 { | |
| 4762 ExpInitializer *ei = v->init->isExpInitializer(); | |
| 4763 if (ei) | |
| 4764 { | |
| 4765 //printf("\tei: %p (%s)\n", ei->exp, ei->exp->toChars()); | |
| 4766 //ei->exp = ei->exp->semantic(sc); | |
| 4767 if (ei->exp->type == type) | |
| 4768 { | |
| 4769 e = ei->exp->copy(); // make copy so we can change loc | |
| 4770 e->loc = loc; | |
| 4771 return e; | |
| 4772 } | |
| 4773 } | |
| 4774 } | |
| 4775 else if (type->isscalar()) | |
| 4776 { | |
| 4777 e = type->defaultInit(); | |
| 4778 e->loc = loc; | |
| 4779 return e; | |
| 4780 } | |
| 4781 } | |
| 4782 if (v->needThis()) | |
| 4783 { | |
| 4784 if (!eleft) | |
| 4785 eleft = new ThisExp(loc); | |
| 4786 e = new DotVarExp(loc, eleft, v); | |
| 4787 e = e->semantic(sc); | |
| 4788 } | |
| 4789 else | |
| 4790 { | |
| 4791 e = new VarExp(loc, v); | |
| 4792 if (eleft) | |
| 4793 { e = new CommaExp(loc, eleft, e); | |
| 4794 e->type = v->type; | |
| 4795 } | |
| 4796 } | |
| 4797 return e->deref(); | |
| 4798 } | |
| 4799 | |
| 4800 FuncDeclaration *f = s->isFuncDeclaration(); | |
| 4801 if (f) | |
| 4802 { | |
| 4803 //printf("it's a function\n"); | |
| 4804 if (f->needThis()) | |
| 4805 { | |
| 4806 if (!eleft) | |
| 4807 eleft = new ThisExp(loc); | |
| 4808 e = new DotVarExp(loc, eleft, f); | |
| 4809 e = e->semantic(sc); | |
| 4810 } | |
| 4811 else | |
| 4812 { | |
| 4813 e = new VarExp(loc, f); | |
| 4814 if (eleft) | |
| 4815 { e = new CommaExp(loc, eleft, e); | |
| 4816 e->type = f->type; | |
| 4817 } | |
| 4818 } | |
| 4819 return e; | |
| 4820 } | |
| 4821 | |
| 4822 Type *t = s->getType(); | |
| 4823 if (t) | |
| 4824 { | |
| 4825 return new TypeExp(loc, t); | |
| 4826 } | |
| 4827 | |
| 4828 ScopeDsymbol *sds = s->isScopeDsymbol(); | |
| 4829 if (sds) | |
| 4830 { | |
| 4831 //printf("it's a ScopeDsymbol\n"); | |
| 4832 e = new ScopeExp(loc, sds); | |
| 4833 e = e->semantic(sc); | |
| 4834 if (eleft) | |
| 4835 e = new DotExp(loc, eleft, e); | |
| 4836 return e; | |
| 4837 } | |
| 4838 | |
| 4839 Import *imp = s->isImport(); | |
| 4840 if (imp) | |
| 4841 { | |
| 4842 ScopeExp *ie; | |
| 4843 | |
| 4844 ie = new ScopeExp(loc, imp->pkg); | |
| 4845 return ie->semantic(sc); | |
| 4846 } | |
| 4847 | |
| 4848 // BUG: handle other cases like in IdentifierExp::semantic() | |
| 4849 #ifdef DEBUG | |
| 4850 printf("s = '%s', kind = '%s'\n", s->toChars(), s->kind()); | |
| 4851 #endif | |
| 4852 assert(0); | |
| 4853 } | |
| 4854 else if (ident == Id::stringof) | |
| 4855 { char *s = ie->toChars(); | |
| 4856 e = new StringExp(loc, s, strlen(s), 'c'); | |
| 4857 e = e->semantic(sc); | |
| 4858 return e; | |
| 4859 } | |
| 4860 error("undefined identifier %s", toChars()); | |
| 4861 type = Type::tvoid; | |
| 4862 return this; | |
| 4863 } | |
| 4864 else if (e1->type->ty == Tpointer && | |
| 4865 ident != Id::init && ident != Id::__sizeof && | |
| 4866 ident != Id::alignof && ident != Id::offsetof && | |
| 4867 ident != Id::mangleof && ident != Id::stringof) | |
| 4868 { | |
| 4869 e = new PtrExp(loc, e1); | |
| 4870 e->type = e1->type->next; | |
| 4871 return e->type->dotExp(sc, e, ident); | |
| 4872 } | |
| 4873 else | |
| 4874 { | |
| 4875 e = e1->type->dotExp(sc, e1, ident); | |
| 4876 e = e->semantic(sc); | |
| 4877 return e; | |
| 4878 } | |
| 4879 } | |
| 4880 | |
| 4881 void DotIdExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4882 { | |
| 4883 //printf("DotIdExp::toCBuffer()\n"); | |
| 4884 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 4885 buf->writeByte('.'); | |
| 4886 buf->writestring(ident->toChars()); | |
| 4887 } | |
| 4888 | |
| 4889 /********************** DotTemplateExp ***********************************/ | |
| 4890 | |
| 4891 // Mainly just a placeholder | |
| 4892 | |
| 4893 DotTemplateExp::DotTemplateExp(Loc loc, Expression *e, TemplateDeclaration *td) | |
| 4894 : UnaExp(loc, TOKdottd, sizeof(DotTemplateExp), e) | |
| 4895 | |
| 4896 { | |
| 4897 this->td = td; | |
| 4898 } | |
| 4899 | |
| 4900 void DotTemplateExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4901 { | |
| 4902 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 4903 buf->writeByte('.'); | |
| 4904 buf->writestring(td->toChars()); | |
| 4905 } | |
| 4906 | |
| 4907 | |
| 4908 /************************************************************/ | |
| 4909 | |
| 4910 DotVarExp::DotVarExp(Loc loc, Expression *e, Declaration *v) | |
| 4911 : UnaExp(loc, TOKdotvar, sizeof(DotVarExp), e) | |
| 4912 { | |
| 4913 //printf("DotVarExp()\n"); | |
| 4914 this->var = v; | |
| 4915 } | |
| 4916 | |
| 4917 Expression *DotVarExp::semantic(Scope *sc) | |
| 4918 { | |
| 4919 #if LOGSEMANTIC | |
| 4920 printf("DotVarExp::semantic('%s')\n", toChars()); | |
| 4921 #endif | |
| 4922 if (!type) | |
| 4923 { | |
| 4924 var = var->toAlias()->isDeclaration(); | |
| 4925 | |
| 4926 TupleDeclaration *tup = var->isTupleDeclaration(); | |
| 4927 if (tup) | |
| 4928 { /* Replace: | |
| 4929 * e1.tuple(a, b, c) | |
| 4930 * with: | |
| 4931 * tuple(e1.a, e1.b, e1.c) | |
| 4932 */ | |
| 4933 Expressions *exps = new Expressions; | |
| 4934 | |
| 4935 exps->reserve(tup->objects->dim); | |
| 4936 for (size_t i = 0; i < tup->objects->dim; i++) | |
| 4937 { Object *o = (Object *)tup->objects->data[i]; | |
| 4938 if (o->dyncast() != DYNCAST_EXPRESSION) | |
| 4939 { | |
| 4940 error("%s is not an expression", o->toChars()); | |
| 4941 } | |
| 4942 else | |
| 4943 { | |
| 4944 Expression *e = (Expression *)o; | |
| 4945 if (e->op != TOKdsymbol) | |
| 4946 error("%s is not a member", e->toChars()); | |
| 4947 else | |
| 4948 { DsymbolExp *ve = (DsymbolExp *)e; | |
| 4949 | |
| 4950 e = new DotVarExp(loc, e1, ve->s->isDeclaration()); | |
| 4951 exps->push(e); | |
| 4952 } | |
| 4953 } | |
| 4954 } | |
| 4955 Expression *e = new TupleExp(loc, exps); | |
| 4956 e = e->semantic(sc); | |
| 4957 return e; | |
| 4958 } | |
| 4959 | |
| 4960 e1 = e1->semantic(sc); | |
| 4961 type = var->type; | |
| 4962 if (!type && global.errors) | |
| 4963 { // var is goofed up, just return 0 | |
| 4964 return new IntegerExp(0); | |
| 4965 } | |
| 4966 assert(type); | |
| 4967 | |
| 4968 if (!var->isFuncDeclaration()) // for functions, do checks after overload resolution | |
| 4969 { | |
| 4970 AggregateDeclaration *ad = var->toParent()->isAggregateDeclaration(); | |
| 4971 L1: | |
| 4972 Type *t = e1->type->toBasetype(); | |
| 4973 | |
| 4974 if (ad && | |
| 4975 !(t->ty == Tpointer && t->next->ty == Tstruct && | |
| 4976 ((TypeStruct *)t->next)->sym == ad) | |
| 4977 && | |
| 4978 !(t->ty == Tstruct && | |
| 4979 ((TypeStruct *)t)->sym == ad) | |
| 4980 ) | |
| 4981 { | |
| 4982 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 4983 ClassDeclaration *tcd = t->isClassHandle(); | |
| 4984 | |
| 4985 if (!cd || !tcd || | |
| 4986 !(tcd == cd || cd->isBaseOf(tcd, NULL)) | |
| 4987 ) | |
| 4988 { | |
| 4989 if (tcd && tcd->isNested()) | |
| 4990 { // Try again with outer scope | |
| 4991 | |
| 4992 e1 = new DotVarExp(loc, e1, tcd->vthis); | |
| 4993 e1 = e1->semantic(sc); | |
| 4994 | |
| 4995 // Skip over nested functions, and get the enclosing | |
| 4996 // class type. | |
| 4997 Dsymbol *s = tcd->toParent(); | |
| 4998 while (s && s->isFuncDeclaration()) | |
| 4999 { FuncDeclaration *f = s->isFuncDeclaration(); | |
| 5000 if (f->vthis) | |
| 5001 { | |
| 5002 e1 = new VarExp(loc, f->vthis); | |
| 5003 } | |
| 5004 s = s->toParent(); | |
| 5005 } | |
| 5006 if (s && s->isClassDeclaration()) | |
| 5007 e1->type = s->isClassDeclaration()->type; | |
| 5008 | |
| 5009 e1 = e1->semantic(sc); | |
| 5010 goto L1; | |
| 5011 } | |
| 5012 #ifdef DEBUG | |
| 5013 printf("2: "); | |
| 5014 #endif | |
| 5015 error("this for %s needs to be type %s not type %s", | |
| 5016 var->toChars(), ad->toChars(), t->toChars()); | |
| 5017 } | |
| 5018 } | |
| 5019 accessCheck(loc, sc, e1, var); | |
| 5020 } | |
| 5021 } | |
| 5022 //printf("-DotVarExp::semantic('%s')\n", toChars()); | |
| 5023 return this; | |
| 5024 } | |
| 5025 | |
| 5026 Expression *DotVarExp::toLvalue(Scope *sc, Expression *e) | |
| 5027 { | |
| 5028 //printf("DotVarExp::toLvalue(%s)\n", toChars()); | |
| 5029 return this; | |
| 5030 } | |
| 5031 | |
| 5032 Expression *DotVarExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 5033 { | |
| 5034 //printf("DotVarExp::modifiableLvalue(%s)\n", toChars()); | |
| 5035 | |
| 5036 if (var->isCtorinit()) | |
| 5037 { // It's only modifiable if inside the right constructor | |
| 5038 Dsymbol *s = sc->func; | |
| 5039 while (1) | |
| 5040 { | |
| 5041 FuncDeclaration *fd = NULL; | |
| 5042 if (s) | |
| 5043 fd = s->isFuncDeclaration(); | |
| 5044 if (fd && | |
| 5045 ((fd->isCtorDeclaration() && var->storage_class & STCfield) || | |
| 5046 (fd->isStaticCtorDeclaration() && !(var->storage_class & STCfield))) && | |
| 5047 fd->toParent() == var->toParent() && | |
| 5048 e1->op == TOKthis | |
| 5049 ) | |
| 5050 { | |
| 5051 VarDeclaration *v = var->isVarDeclaration(); | |
| 5052 assert(v); | |
| 5053 v->ctorinit = 1; | |
| 5054 //printf("setting ctorinit\n"); | |
| 5055 } | |
| 5056 else | |
| 5057 { | |
| 5058 if (s) | |
| 5059 { s = s->toParent2(); | |
| 5060 continue; | |
| 5061 } | |
| 5062 else | |
| 5063 { | |
| 5064 const char *p = var->isStatic() ? "static " : ""; | |
| 5065 error("can only initialize %sconst member %s inside %sconstructor", | |
| 5066 p, var->toChars(), p); | |
| 5067 } | |
| 5068 } | |
| 5069 break; | |
| 5070 } | |
| 5071 } | |
| 5072 return this; | |
| 5073 } | |
| 5074 | |
| 5075 void DotVarExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5076 { | |
| 5077 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 5078 buf->writeByte('.'); | |
| 5079 buf->writestring(var->toChars()); | |
| 5080 } | |
| 5081 | |
| 5082 /************************************************************/ | |
| 5083 | |
| 5084 /* Things like: | |
| 5085 * foo.bar!(args) | |
| 5086 */ | |
| 5087 | |
| 5088 DotTemplateInstanceExp::DotTemplateInstanceExp(Loc loc, Expression *e, TemplateInstance *ti) | |
| 5089 : UnaExp(loc, TOKdotti, sizeof(DotTemplateInstanceExp), e) | |
| 5090 { | |
| 5091 //printf("DotTemplateInstanceExp()\n"); | |
| 5092 this->ti = ti; | |
| 5093 } | |
| 5094 | |
| 5095 Expression *DotTemplateInstanceExp::syntaxCopy() | |
| 5096 { | |
| 5097 DotTemplateInstanceExp *de = new DotTemplateInstanceExp(loc, | |
| 5098 e1->syntaxCopy(), | |
| 5099 (TemplateInstance *)ti->syntaxCopy(NULL)); | |
| 5100 return de; | |
| 5101 } | |
| 5102 | |
| 5103 Expression *DotTemplateInstanceExp::semantic(Scope *sc) | |
| 5104 { Dsymbol *s; | |
| 5105 Dsymbol *s2; | |
| 5106 TemplateDeclaration *td; | |
| 5107 Expression *e; | |
| 5108 Identifier *id; | |
| 5109 Type *t1; | |
| 5110 Expression *eleft = NULL; | |
| 5111 Expression *eright; | |
| 5112 | |
| 5113 #if LOGSEMANTIC | |
| 5114 printf("DotTemplateInstanceExp::semantic('%s')\n", toChars()); | |
| 5115 #endif | |
| 5116 //e1->print(); | |
| 5117 //print(); | |
| 5118 e1 = e1->semantic(sc); | |
| 5119 t1 = e1->type; | |
| 5120 if (t1) | |
| 5121 t1 = t1->toBasetype(); | |
| 5122 //t1->print(); | |
| 5123 if (e1->op == TOKdotexp) | |
| 5124 { DotExp *de = (DotExp *)e1; | |
| 5125 eleft = de->e1; | |
| 5126 eright = de->e2; | |
| 5127 } | |
| 5128 else | |
| 5129 { eleft = NULL; | |
| 5130 eright = e1; | |
| 5131 } | |
| 5132 if (eright->op == TOKimport) | |
| 5133 { | |
| 5134 s = ((ScopeExp *)eright)->sds; | |
| 5135 } | |
| 5136 else if (e1->op == TOKtype) | |
| 5137 { | |
| 5138 s = t1->isClassHandle(); | |
| 5139 if (!s) | |
| 5140 { if (t1->ty == Tstruct) | |
| 5141 s = ((TypeStruct *)t1)->sym; | |
| 5142 else | |
| 5143 goto L1; | |
| 5144 } | |
| 5145 } | |
| 5146 else if (t1 && (t1->ty == Tstruct || t1->ty == Tclass)) | |
| 5147 { | |
| 5148 s = t1->toDsymbol(sc); | |
| 5149 eleft = e1; | |
| 5150 } | |
| 5151 else if (t1 && t1->ty == Tpointer) | |
| 5152 { | |
| 5153 t1 = t1->next->toBasetype(); | |
| 5154 if (t1->ty != Tstruct) | |
| 5155 goto L1; | |
| 5156 s = t1->toDsymbol(sc); | |
| 5157 eleft = e1; | |
| 5158 } | |
| 5159 else | |
| 5160 { | |
| 5161 L1: | |
| 5162 error("template %s is not a member of %s", ti->toChars(), e1->toChars()); | |
| 5163 goto Lerr; | |
| 5164 } | |
| 5165 | |
| 5166 assert(s); | |
| 5167 id = ti->name; | |
| 5168 s2 = s->search(loc, id, 0); | |
| 5169 if (!s2) | |
| 5170 { error("template identifier %s is not a member of %s %s", id->toChars(), s->kind(), s->ident->toChars()); | |
| 5171 goto Lerr; | |
| 5172 } | |
| 5173 s = s2; | |
| 5174 s->semantic(sc); | |
| 5175 s = s->toAlias(); | |
| 5176 td = s->isTemplateDeclaration(); | |
| 5177 if (!td) | |
| 5178 { | |
| 5179 error("%s is not a template", id->toChars()); | |
| 5180 goto Lerr; | |
| 5181 } | |
| 5182 if (global.errors) | |
| 5183 goto Lerr; | |
| 5184 | |
| 5185 ti->tempdecl = td; | |
| 5186 | |
| 5187 if (eleft) | |
| 5188 { Declaration *v; | |
| 5189 | |
| 5190 ti->semantic(sc); | |
| 5191 s = ti->inst->toAlias(); | |
| 5192 v = s->isDeclaration(); | |
| 5193 if (v) | |
| 5194 { e = new DotVarExp(loc, eleft, v); | |
| 5195 e = e->semantic(sc); | |
| 5196 return e; | |
| 5197 } | |
| 5198 } | |
| 5199 | |
| 5200 e = new ScopeExp(loc, ti); | |
| 5201 if (eleft) | |
| 5202 { | |
| 5203 e = new DotExp(loc, eleft, e); | |
| 5204 } | |
| 5205 e = e->semantic(sc); | |
| 5206 return e; | |
| 5207 | |
| 5208 Lerr: | |
| 5209 return new IntegerExp(0); | |
| 5210 } | |
| 5211 | |
| 5212 void DotTemplateInstanceExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5213 { | |
| 5214 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 5215 buf->writeByte('.'); | |
| 5216 ti->toCBuffer(buf, hgs); | |
| 5217 } | |
| 5218 | |
| 5219 /************************************************************/ | |
| 5220 | |
| 5221 DelegateExp::DelegateExp(Loc loc, Expression *e, FuncDeclaration *f) | |
| 5222 : UnaExp(loc, TOKdelegate, sizeof(DelegateExp), e) | |
| 5223 { | |
| 5224 this->func = f; | |
| 5225 } | |
| 5226 | |
| 5227 Expression *DelegateExp::semantic(Scope *sc) | |
| 5228 { | |
| 5229 #if LOGSEMANTIC | |
| 5230 printf("DelegateExp::semantic('%s')\n", toChars()); | |
| 5231 #endif | |
| 5232 if (!type) | |
| 5233 { | |
| 5234 e1 = e1->semantic(sc); | |
| 5235 type = new TypeDelegate(func->type); | |
| 5236 type = type->semantic(loc, sc); | |
| 5237 //----------------- | |
| 5238 /* For func, we need to get the | |
| 5239 * right 'this' pointer if func is in an outer class, but our | |
| 5240 * existing 'this' pointer is in an inner class. | |
| 5241 * This code is analogous to that used for variables | |
| 5242 * in DotVarExp::semantic(). | |
| 5243 */ | |
| 5244 AggregateDeclaration *ad = func->toParent()->isAggregateDeclaration(); | |
| 5245 L10: | |
| 5246 Type *t = e1->type; | |
| 5247 if (func->needThis() && ad && | |
| 5248 !(t->ty == Tpointer && t->next->ty == Tstruct && | |
| 5249 ((TypeStruct *)t->next)->sym == ad) && | |
| 5250 !(t->ty == Tstruct && ((TypeStruct *)t)->sym == ad) | |
| 5251 ) | |
| 5252 { | |
| 5253 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 5254 ClassDeclaration *tcd = t->isClassHandle(); | |
| 5255 | |
| 5256 if (!cd || !tcd || | |
| 5257 !(tcd == cd || cd->isBaseOf(tcd, NULL)) | |
| 5258 ) | |
| 5259 { | |
| 5260 if (tcd && tcd->isNested()) | |
| 5261 { // Try again with outer scope | |
| 5262 | |
| 5263 e1 = new DotVarExp(loc, e1, tcd->vthis); | |
| 5264 e1 = e1->semantic(sc); | |
| 5265 goto L10; | |
| 5266 } | |
| 5267 #ifdef DEBUG | |
| 5268 printf("3: "); | |
| 5269 #endif | |
| 5270 error("this for %s needs to be type %s not type %s", | |
| 5271 func->toChars(), ad->toChars(), t->toChars()); | |
| 5272 } | |
| 5273 } | |
| 5274 //----------------- | |
| 5275 } | |
| 5276 return this; | |
| 5277 } | |
| 5278 | |
| 5279 void DelegateExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5280 { | |
| 5281 buf->writeByte('&'); | |
| 5282 if (!func->isNested()) | |
| 5283 { | |
| 5284 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 5285 buf->writeByte('.'); | |
| 5286 } | |
| 5287 buf->writestring(func->toChars()); | |
| 5288 } | |
| 5289 | |
| 5290 /************************************************************/ | |
| 5291 | |
| 5292 DotTypeExp::DotTypeExp(Loc loc, Expression *e, Dsymbol *s) | |
| 5293 : UnaExp(loc, TOKdottype, sizeof(DotTypeExp), e) | |
| 5294 { | |
| 5295 this->sym = s; | |
| 5296 this->type = s->getType(); | |
| 5297 } | |
| 5298 | |
| 5299 Expression *DotTypeExp::semantic(Scope *sc) | |
| 5300 { | |
| 5301 #if LOGSEMANTIC | |
| 5302 printf("DotTypeExp::semantic('%s')\n", toChars()); | |
| 5303 #endif | |
| 5304 UnaExp::semantic(sc); | |
| 5305 return this; | |
| 5306 } | |
| 5307 | |
| 5308 void DotTypeExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5309 { | |
| 5310 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 5311 buf->writeByte('.'); | |
| 5312 buf->writestring(sym->toChars()); | |
| 5313 } | |
| 5314 | |
| 5315 /************************************************************/ | |
| 5316 | |
| 5317 CallExp::CallExp(Loc loc, Expression *e, Expressions *exps) | |
| 5318 : UnaExp(loc, TOKcall, sizeof(CallExp), e) | |
| 5319 { | |
| 5320 this->arguments = exps; | |
| 5321 } | |
| 5322 | |
| 5323 CallExp::CallExp(Loc loc, Expression *e) | |
| 5324 : UnaExp(loc, TOKcall, sizeof(CallExp), e) | |
| 5325 { | |
| 5326 this->arguments = NULL; | |
| 5327 } | |
| 5328 | |
| 5329 CallExp::CallExp(Loc loc, Expression *e, Expression *earg1) | |
| 5330 : UnaExp(loc, TOKcall, sizeof(CallExp), e) | |
| 5331 { | |
| 5332 Expressions *arguments = new Expressions(); | |
| 5333 arguments->setDim(1); | |
| 5334 arguments->data[0] = (void *)earg1; | |
| 5335 | |
| 5336 this->arguments = arguments; | |
| 5337 } | |
| 5338 | |
| 5339 CallExp::CallExp(Loc loc, Expression *e, Expression *earg1, Expression *earg2) | |
| 5340 : UnaExp(loc, TOKcall, sizeof(CallExp), e) | |
| 5341 { | |
| 5342 Expressions *arguments = new Expressions(); | |
| 5343 arguments->setDim(2); | |
| 5344 arguments->data[0] = (void *)earg1; | |
| 5345 arguments->data[1] = (void *)earg2; | |
| 5346 | |
| 5347 this->arguments = arguments; | |
| 5348 } | |
| 5349 | |
| 5350 Expression *CallExp::syntaxCopy() | |
| 5351 { | |
| 5352 return new CallExp(loc, e1->syntaxCopy(), arraySyntaxCopy(arguments)); | |
| 5353 } | |
| 5354 | |
| 5355 | |
| 5356 Expression *CallExp::semantic(Scope *sc) | |
| 5357 { | |
| 5358 TypeFunction *tf; | |
| 5359 FuncDeclaration *f; | |
| 5360 int i; | |
| 5361 Type *t1; | |
| 5362 int istemp; | |
| 5363 | |
| 5364 #if LOGSEMANTIC | |
| 5365 printf("CallExp::semantic() %s\n", toChars()); | |
| 5366 #endif | |
| 5367 if (type) | |
| 5368 return this; // semantic() already run | |
| 5369 #if 0 | |
| 5370 if (arguments && arguments->dim) | |
| 5371 { | |
| 5372 Expression *earg = (Expression *)arguments->data[0]; | |
| 5373 earg->print(); | |
| 5374 if (earg->type) earg->type->print(); | |
| 5375 } | |
| 5376 #endif | |
| 5377 | |
| 5378 if (e1->op == TOKdelegate) | |
| 5379 { DelegateExp *de = (DelegateExp *)e1; | |
| 5380 | |
| 5381 e1 = new DotVarExp(de->loc, de->e1, de->func); | |
| 5382 return semantic(sc); | |
| 5383 } | |
| 5384 | |
| 5385 /* Transform: | |
| 5386 * array.id(args) into id(array,args) | |
| 5387 * aa.remove(arg) into delete aa[arg] | |
| 5388 */ | |
| 5389 if (e1->op == TOKdot) | |
| 5390 { | |
| 5391 // BUG: we should handle array.a.b.c.e(args) too | |
| 5392 | |
| 5393 DotIdExp *dotid = (DotIdExp *)(e1); | |
| 5394 dotid->e1 = dotid->e1->semantic(sc); | |
| 5395 assert(dotid->e1); | |
| 5396 if (dotid->e1->type) | |
| 5397 { | |
| 5398 TY e1ty = dotid->e1->type->toBasetype()->ty; | |
| 5399 if (e1ty == Taarray && dotid->ident == Id::remove) | |
| 5400 { | |
| 5401 if (!arguments || arguments->dim != 1) | |
| 5402 { error("expected key as argument to aa.remove()"); | |
| 5403 goto Lagain; | |
| 5404 } | |
| 5405 Expression *key = (Expression *)arguments->data[0]; | |
| 5406 key = key->semantic(sc); | |
| 5407 key = resolveProperties(sc, key); | |
| 5408 key->rvalue(); | |
| 5409 | |
| 5410 TypeAArray *taa = (TypeAArray *)dotid->e1->type->toBasetype(); | |
| 5411 key = key->implicitCastTo(sc, taa->index); | |
| 5412 key = key->implicitCastTo(sc, taa->key); | |
| 5413 | |
| 5414 return new RemoveExp(loc, dotid->e1, key); | |
| 5415 } | |
| 5416 else if (e1ty == Tarray || e1ty == Tsarray || e1ty == Taarray) | |
| 5417 { | |
| 5418 if (!arguments) | |
| 5419 arguments = new Expressions(); | |
| 5420 arguments->shift(dotid->e1); | |
| 5421 e1 = new IdentifierExp(dotid->loc, dotid->ident); | |
| 5422 } | |
| 5423 } | |
| 5424 } | |
| 5425 | |
| 5426 istemp = 0; | |
| 5427 Lagain: | |
| 5428 f = NULL; | |
| 5429 if (e1->op == TOKthis || e1->op == TOKsuper) | |
| 5430 { | |
| 5431 // semantic() run later for these | |
| 5432 } | |
| 5433 else | |
| 5434 { | |
| 5435 UnaExp::semantic(sc); | |
| 5436 | |
| 5437 /* Look for e1 being a lazy parameter | |
| 5438 */ | |
| 5439 if (e1->op == TOKvar) | |
| 5440 { VarExp *ve = (VarExp *)e1; | |
| 5441 | |
| 5442 if (ve->var->storage_class & STClazy) | |
| 5443 { | |
| 5444 TypeFunction *tf = new TypeFunction(NULL, ve->var->type, 0, LINKd); | |
| 5445 TypeDelegate *t = new TypeDelegate(tf); | |
| 5446 ve->type = t->semantic(loc, sc); | |
| 5447 } | |
| 5448 } | |
| 5449 | |
| 5450 if (e1->op == TOKimport) | |
| 5451 { // Perhaps this should be moved to ScopeExp::semantic() | |
| 5452 ScopeExp *se = (ScopeExp *)e1; | |
| 5453 e1 = new DsymbolExp(loc, se->sds); | |
| 5454 e1 = e1->semantic(sc); | |
| 5455 } | |
| 5456 #if 1 // patch for #540 by Oskar Linde | |
| 5457 else if (e1->op == TOKdotexp) | |
| 5458 { | |
| 5459 DotExp *de = (DotExp *) e1; | |
| 5460 | |
| 5461 if (de->e2->op == TOKimport) | |
| 5462 { // This should *really* be moved to ScopeExp::semantic() | |
| 5463 ScopeExp *se = (ScopeExp *)de->e2; | |
| 5464 de->e2 = new DsymbolExp(loc, se->sds); | |
| 5465 de->e2 = de->e2->semantic(sc); | |
| 5466 } | |
| 5467 | |
| 5468 if (de->e2->op == TOKtemplate) | |
| 5469 { TemplateExp *te = (TemplateExp *) de->e2; | |
| 5470 e1 = new DotTemplateExp(loc,de->e1,te->td); | |
| 5471 } | |
| 5472 } | |
| 5473 #endif | |
| 5474 } | |
| 5475 | |
| 5476 if (e1->op == TOKcomma) | |
| 5477 { | |
| 5478 CommaExp *ce = (CommaExp *)e1; | |
| 5479 | |
| 5480 e1 = ce->e2; | |
| 5481 e1->type = ce->type; | |
| 5482 ce->e2 = this; | |
| 5483 ce->type = NULL; | |
| 5484 return ce->semantic(sc); | |
| 5485 } | |
| 5486 | |
| 5487 t1 = NULL; | |
| 5488 if (e1->type) | |
| 5489 t1 = e1->type->toBasetype(); | |
| 5490 | |
| 5491 // Check for call operator overload | |
| 5492 if (t1) | |
| 5493 { AggregateDeclaration *ad; | |
| 5494 | |
| 5495 if (t1->ty == Tstruct) | |
| 5496 { | |
| 5497 ad = ((TypeStruct *)t1)->sym; | |
| 5498 if (search_function(ad, Id::call)) | |
| 5499 goto L1; // overload of opCall, therefore it's a call | |
| 5500 | |
| 5501 if (e1->op != TOKtype) | |
| 5502 error("%s %s does not overload ()", ad->kind(), ad->toChars()); | |
| 5503 /* It's a struct literal | |
| 5504 */ | |
| 5505 Expression *e = new StructLiteralExp(loc, (StructDeclaration *)ad, arguments); | |
| 5506 e = e->semantic(sc); | |
| 5507 e->type = e1->type; // in case e1->type was a typedef | |
| 5508 return e; | |
| 5509 } | |
| 5510 else if (t1->ty == Tclass) | |
| 5511 { | |
| 5512 ad = ((TypeClass *)t1)->sym; | |
| 5513 goto L1; | |
| 5514 L1: | |
| 5515 // Rewrite as e1.call(arguments) | |
| 5516 Expression *e = new DotIdExp(loc, e1, Id::call); | |
| 5517 e = new CallExp(loc, e, arguments); | |
| 5518 e = e->semantic(sc); | |
| 5519 return e; | |
| 5520 } | |
| 5521 } | |
| 5522 | |
| 5523 arrayExpressionSemantic(arguments, sc); | |
| 5524 preFunctionArguments(loc, sc, arguments); | |
| 5525 | |
| 5526 if (e1->op == TOKdotvar && t1->ty == Tfunction || | |
| 5527 e1->op == TOKdottd) | |
| 5528 { | |
| 5529 DotVarExp *dve; | |
| 5530 DotTemplateExp *dte; | |
| 5531 AggregateDeclaration *ad; | |
| 5532 UnaExp *ue = (UnaExp *)(e1); | |
| 5533 | |
| 5534 if (e1->op == TOKdotvar) | |
| 5535 { // Do overload resolution | |
| 5536 dve = (DotVarExp *)(e1); | |
| 5537 | |
| 5538 f = dve->var->isFuncDeclaration(); | |
| 5539 assert(f); | |
| 5540 f = f->overloadResolve(loc, arguments); | |
| 5541 | |
| 5542 ad = f->toParent()->isAggregateDeclaration(); | |
| 5543 } | |
| 5544 else | |
| 5545 { dte = (DotTemplateExp *)(e1); | |
| 5546 TemplateDeclaration *td = dte->td; | |
| 5547 assert(td); | |
| 5548 if (!arguments) | |
| 5549 // Should fix deduceFunctionTemplate() so it works on NULL argument | |
| 5550 arguments = new Expressions(); | |
| 5551 f = td->deduceFunctionTemplate(sc, loc, NULL, arguments); | |
| 5552 if (!f) | |
| 5553 { type = Type::terror; | |
| 5554 return this; | |
| 5555 } | |
| 5556 ad = td->toParent()->isAggregateDeclaration(); | |
| 5557 } | |
| 5558 /* Now that we have the right function f, we need to get the | |
| 5559 * right 'this' pointer if f is in an outer class, but our | |
| 5560 * existing 'this' pointer is in an inner class. | |
| 5561 * This code is analogous to that used for variables | |
| 5562 * in DotVarExp::semantic(). | |
| 5563 */ | |
| 5564 L10: | |
| 5565 Type *t = ue->e1->type->toBasetype(); | |
| 5566 if (f->needThis() && ad && | |
| 5567 !(t->ty == Tpointer && t->next->ty == Tstruct && | |
| 5568 ((TypeStruct *)t->next)->sym == ad) && | |
| 5569 !(t->ty == Tstruct && ((TypeStruct *)t)->sym == ad) | |
| 5570 ) | |
| 5571 { | |
| 5572 ClassDeclaration *cd = ad->isClassDeclaration(); | |
| 5573 ClassDeclaration *tcd = t->isClassHandle(); | |
| 5574 | |
| 5575 if (!cd || !tcd || | |
| 5576 !(tcd == cd || cd->isBaseOf(tcd, NULL)) | |
| 5577 ) | |
| 5578 { | |
| 5579 if (tcd && tcd->isNested()) | |
| 5580 { // Try again with outer scope | |
| 5581 | |
| 5582 ue->e1 = new DotVarExp(loc, ue->e1, tcd->vthis); | |
| 5583 ue->e1 = ue->e1->semantic(sc); | |
| 5584 goto L10; | |
| 5585 } | |
| 5586 #ifdef DEBUG | |
| 5587 printf("1: "); | |
| 5588 #endif | |
| 5589 error("this for %s needs to be type %s not type %s", | |
| 5590 f->toChars(), ad->toChars(), t->toChars()); | |
| 5591 } | |
| 5592 } | |
| 5593 | |
| 5594 checkDeprecated(sc, f); | |
| 5595 accessCheck(loc, sc, ue->e1, f); | |
| 5596 if (!f->needThis()) | |
| 5597 { | |
| 5598 VarExp *ve = new VarExp(loc, f); | |
| 5599 e1 = new CommaExp(loc, ue->e1, ve); | |
| 5600 e1->type = f->type; | |
| 5601 } | |
| 5602 else | |
| 5603 { | |
| 5604 if (e1->op == TOKdotvar) | |
| 5605 dve->var = f; | |
| 5606 else | |
| 5607 e1 = new DotVarExp(loc, dte->e1, f); | |
| 5608 e1->type = f->type; | |
| 5609 | |
| 5610 // See if we need to adjust the 'this' pointer | |
| 5611 AggregateDeclaration *ad = f->isThis(); | |
| 5612 ClassDeclaration *cd = ue->e1->type->isClassHandle(); | |
| 5613 if (ad && cd && ad->isClassDeclaration() && ad != cd && | |
| 5614 ue->e1->op != TOKsuper) | |
| 5615 { | |
| 5616 ue->e1 = ue->e1->castTo(sc, ad->type); //new CastExp(loc, ue->e1, ad->type); | |
| 5617 ue->e1 = ue->e1->semantic(sc); | |
| 5618 } | |
| 5619 } | |
| 5620 t1 = e1->type; | |
| 5621 } | |
| 5622 else if (e1->op == TOKsuper) | |
| 5623 { | |
| 5624 // Base class constructor call | |
| 5625 ClassDeclaration *cd = NULL; | |
| 5626 | |
| 5627 if (sc->func) | |
| 5628 cd = sc->func->toParent()->isClassDeclaration(); | |
| 5629 if (!cd || !cd->baseClass || !sc->func->isCtorDeclaration()) | |
| 5630 { | |
| 5631 error("super class constructor call must be in a constructor"); | |
| 5632 type = Type::terror; | |
| 5633 return this; | |
| 5634 } | |
| 5635 else | |
| 5636 { | |
| 5637 f = cd->baseClass->ctor; | |
| 5638 if (!f) | |
| 5639 { error("no super class constructor for %s", cd->baseClass->toChars()); | |
| 5640 type = Type::terror; | |
| 5641 return this; | |
| 5642 } | |
| 5643 else | |
| 5644 { | |
| 5645 #if 0 | |
| 5646 if (sc->callSuper & (CSXthis | CSXsuper)) | |
| 5647 error("reference to this before super()"); | |
| 5648 #endif | |
| 5649 if (sc->noctor || sc->callSuper & CSXlabel) | |
| 5650 error("constructor calls not allowed in loops or after labels"); | |
| 5651 if (sc->callSuper & (CSXsuper_ctor | CSXthis_ctor)) | |
| 5652 error("multiple constructor calls"); | |
| 5653 sc->callSuper |= CSXany_ctor | CSXsuper_ctor; | |
| 5654 | |
| 5655 f = f->overloadResolve(loc, arguments); | |
| 5656 checkDeprecated(sc, f); | |
| 5657 e1 = new DotVarExp(e1->loc, e1, f); | |
| 5658 e1 = e1->semantic(sc); | |
| 5659 t1 = e1->type; | |
| 5660 } | |
| 5661 } | |
| 5662 } | |
| 5663 else if (e1->op == TOKthis) | |
| 5664 { | |
| 5665 // same class constructor call | |
| 5666 ClassDeclaration *cd = NULL; | |
| 5667 | |
| 5668 if (sc->func) | |
| 5669 cd = sc->func->toParent()->isClassDeclaration(); | |
| 5670 if (!cd || !sc->func->isCtorDeclaration()) | |
| 5671 { | |
| 5672 error("class constructor call must be in a constructor"); | |
| 5673 type = Type::terror; | |
| 5674 return this; | |
| 5675 } | |
| 5676 else | |
| 5677 { | |
| 5678 #if 0 | |
| 5679 if (sc->callSuper & (CSXthis | CSXsuper)) | |
| 5680 error("reference to this before super()"); | |
| 5681 #endif | |
| 5682 if (sc->noctor || sc->callSuper & CSXlabel) | |
| 5683 error("constructor calls not allowed in loops or after labels"); | |
| 5684 if (sc->callSuper & (CSXsuper_ctor | CSXthis_ctor)) | |
| 5685 error("multiple constructor calls"); | |
| 5686 sc->callSuper |= CSXany_ctor | CSXthis_ctor; | |
| 5687 | |
| 5688 f = cd->ctor; | |
| 5689 f = f->overloadResolve(loc, arguments); | |
| 5690 checkDeprecated(sc, f); | |
| 5691 e1 = new DotVarExp(e1->loc, e1, f); | |
| 5692 e1 = e1->semantic(sc); | |
| 5693 t1 = e1->type; | |
| 5694 | |
| 5695 // BUG: this should really be done by checking the static | |
| 5696 // call graph | |
| 5697 if (f == sc->func) | |
| 5698 error("cyclic constructor call"); | |
| 5699 } | |
| 5700 } | |
| 5701 else if (!t1) | |
| 5702 { | |
| 5703 error("function expected before (), not '%s'", e1->toChars()); | |
| 5704 type = Type::terror; | |
| 5705 return this; | |
| 5706 } | |
| 5707 else if (t1->ty != Tfunction) | |
| 5708 { | |
| 5709 if (t1->ty == Tdelegate) | |
| 5710 { | |
| 5711 assert(t1->next->ty == Tfunction); | |
| 5712 tf = (TypeFunction *)(t1->next); | |
| 5713 goto Lcheckargs; | |
| 5714 } | |
| 5715 else if (t1->ty == Tpointer && t1->next->ty == Tfunction) | |
| 5716 { Expression *e; | |
| 5717 | |
| 5718 e = new PtrExp(loc, e1); | |
| 5719 t1 = t1->next; | |
| 5720 e->type = t1; | |
| 5721 e1 = e; | |
| 5722 } | |
| 5723 else if (e1->op == TOKtemplate) | |
| 5724 { | |
| 5725 TemplateExp *te = (TemplateExp *)e1; | |
| 5726 f = te->td->deduceFunctionTemplate(sc, loc, NULL, arguments); | |
| 5727 if (!f) | |
| 5728 { type = Type::terror; | |
| 5729 return this; | |
| 5730 } | |
| 5731 if (f->needThis() && hasThis(sc)) | |
| 5732 { | |
| 5733 // Supply an implicit 'this', as in | |
| 5734 // this.ident | |
| 5735 | |
| 5736 e1 = new DotTemplateExp(loc, (new ThisExp(loc))->semantic(sc), te->td); | |
| 5737 goto Lagain; | |
| 5738 } | |
| 5739 | |
| 5740 e1 = new VarExp(loc, f); | |
| 5741 goto Lagain; | |
| 5742 } | |
| 5743 else | |
| 5744 { error("function expected before (), not %s of type %s", e1->toChars(), e1->type->toChars()); | |
| 5745 type = Type::terror; | |
| 5746 return this; | |
| 5747 } | |
| 5748 } | |
| 5749 else if (e1->op == TOKvar) | |
| 5750 { | |
| 5751 // Do overload resolution | |
| 5752 VarExp *ve = (VarExp *)e1; | |
| 5753 | |
| 5754 f = ve->var->isFuncDeclaration(); | |
| 5755 assert(f); | |
| 5756 | |
| 5757 // Look to see if f is really a function template | |
| 5758 if (0 && !istemp && f->parent) | |
| 5759 { TemplateInstance *ti = f->parent->isTemplateInstance(); | |
| 5760 | |
| 5761 if (ti && | |
| 5762 (ti->name == f->ident || | |
| 5763 ti->toAlias()->ident == f->ident) | |
| 5764 && | |
| 5765 ti->tempdecl) | |
| 5766 { | |
| 5767 /* This is so that one can refer to the enclosing | |
| 5768 * template, even if it has the same name as a member | |
| 5769 * of the template, if it has a !(arguments) | |
| 5770 */ | |
| 5771 TemplateDeclaration *tempdecl = ti->tempdecl; | |
| 5772 if (tempdecl->overroot) // if not start of overloaded list of TemplateDeclaration's | |
| 5773 tempdecl = tempdecl->overroot; // then get the start | |
| 5774 e1 = new TemplateExp(loc, tempdecl); | |
| 5775 istemp = 1; | |
| 5776 goto Lagain; | |
| 5777 } | |
| 5778 } | |
| 5779 | |
| 5780 f = f->overloadResolve(loc, arguments); | |
| 5781 checkDeprecated(sc, f); | |
| 5782 | |
| 5783 if (f->needThis() && hasThis(sc)) | |
| 5784 { | |
| 5785 // Supply an implicit 'this', as in | |
| 5786 // this.ident | |
| 5787 | |
| 5788 e1 = new DotVarExp(loc, new ThisExp(loc), f); | |
| 5789 goto Lagain; | |
| 5790 } | |
| 5791 | |
| 5792 accessCheck(loc, sc, NULL, f); | |
| 5793 | |
| 5794 ve->var = f; | |
| 5795 ve->type = f->type; | |
| 5796 t1 = f->type; | |
| 5797 } | |
| 5798 assert(t1->ty == Tfunction); | |
| 5799 tf = (TypeFunction *)(t1); | |
| 5800 | |
| 5801 Lcheckargs: | |
| 5802 assert(tf->ty == Tfunction); | |
| 5803 type = tf->next; | |
| 5804 | |
| 5805 if (!arguments) | |
| 5806 arguments = new Expressions(); | |
| 5807 functionArguments(loc, sc, tf, arguments); | |
| 5808 | |
| 5809 assert(type); | |
| 5810 | |
| 5811 if (f && f->tintro) | |
| 5812 { | |
| 5813 Type *t = type; | |
| 5814 int offset = 0; | |
| 5815 | |
| 5816 if (f->tintro->next->isBaseOf(t, &offset) && offset) | |
| 5817 { | |
| 5818 type = f->tintro->next; | |
| 5819 return castTo(sc, t); | |
| 5820 } | |
| 5821 } | |
| 5822 | |
| 5823 return this; | |
| 5824 } | |
| 5825 | |
| 5826 int CallExp::checkSideEffect(int flag) | |
| 5827 { | |
| 5828 return 1; | |
| 5829 } | |
| 5830 | |
| 5831 Expression *CallExp::toLvalue(Scope *sc, Expression *e) | |
| 5832 { | |
| 5833 if (type->toBasetype()->ty == Tstruct) | |
| 5834 return this; | |
| 5835 else | |
| 5836 return Expression::toLvalue(sc, e); | |
| 5837 } | |
| 5838 | |
| 5839 void CallExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5840 { int i; | |
| 5841 | |
| 5842 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 5843 buf->writeByte('('); | |
| 5844 argsToCBuffer(buf, arguments, hgs); | |
| 5845 buf->writeByte(')'); | |
| 5846 } | |
| 5847 | |
| 5848 | |
| 5849 /************************************************************/ | |
| 5850 | |
| 5851 AddrExp::AddrExp(Loc loc, Expression *e) | |
| 5852 : UnaExp(loc, TOKaddress, sizeof(AddrExp), e) | |
| 5853 { | |
| 5854 } | |
| 5855 | |
| 5856 Expression *AddrExp::semantic(Scope *sc) | |
| 5857 { | |
| 5858 #if LOGSEMANTIC | |
| 5859 printf("AddrExp::semantic('%s')\n", toChars()); | |
| 5860 #endif | |
| 5861 if (!type) | |
| 5862 { | |
| 5863 UnaExp::semantic(sc); | |
| 5864 e1 = e1->toLvalue(sc, NULL); | |
| 5865 if (!e1->type) | |
| 5866 { | |
| 5867 error("cannot take address of %s", e1->toChars()); | |
| 5868 type = Type::tint32; | |
| 5869 return this; | |
| 5870 } | |
| 5871 type = e1->type->pointerTo(); | |
| 5872 | |
| 5873 // See if this should really be a delegate | |
| 5874 if (e1->op == TOKdotvar) | |
| 5875 { | |
| 5876 DotVarExp *dve = (DotVarExp *)e1; | |
| 5877 FuncDeclaration *f = dve->var->isFuncDeclaration(); | |
| 5878 | |
| 5879 if (f) | |
| 5880 { Expression *e; | |
| 5881 | |
| 5882 e = new DelegateExp(loc, dve->e1, f); | |
| 5883 e = e->semantic(sc); | |
| 5884 return e; | |
| 5885 } | |
| 5886 } | |
| 5887 else if (e1->op == TOKvar) | |
| 5888 { | |
| 5889 VarExp *dve = (VarExp *)e1; | |
| 5890 FuncDeclaration *f = dve->var->isFuncDeclaration(); | |
| 5891 VarDeclaration *v = dve->var->isVarDeclaration(); | |
| 5892 | |
| 5893 if (f && f->isNested()) | |
| 5894 { Expression *e; | |
| 5895 | |
| 5896 e = new DelegateExp(loc, e1, f); | |
| 5897 e = e->semantic(sc); | |
| 5898 return e; | |
| 5899 } | |
| 5900 else if (v) | |
| 5901 { | |
| 5902 v->needsStorage = true; | |
| 5903 } | |
| 5904 } | |
| 5905 else if (e1->op == TOKarray) | |
| 5906 { | |
| 5907 if (e1->type->toBasetype()->ty == Tbit) | |
| 5908 error("cannot take address of bit in array"); | |
| 5909 } | |
| 5910 return optimize(WANTvalue); | |
| 5911 } | |
| 5912 return this; | |
| 5913 } | |
| 5914 | |
| 5915 /************************************************************/ | |
| 5916 | |
| 5917 PtrExp::PtrExp(Loc loc, Expression *e) | |
| 5918 : UnaExp(loc, TOKstar, sizeof(PtrExp), e) | |
| 5919 { | |
| 5920 if (e->type) | |
| 5921 type = e->type->next; | |
| 5922 } | |
| 5923 | |
| 5924 PtrExp::PtrExp(Loc loc, Expression *e, Type *t) | |
| 5925 : UnaExp(loc, TOKstar, sizeof(PtrExp), e) | |
| 5926 { | |
| 5927 type = t; | |
| 5928 } | |
| 5929 | |
| 5930 Expression *PtrExp::semantic(Scope *sc) | |
| 5931 { Type *tb; | |
| 5932 | |
| 5933 #if LOGSEMANTIC | |
| 5934 printf("PtrExp::semantic('%s')\n", toChars()); | |
| 5935 #endif | |
| 5936 UnaExp::semantic(sc); | |
| 5937 e1 = resolveProperties(sc, e1); | |
| 5938 if (type) | |
| 5939 return this; | |
| 5940 if (!e1->type) | |
| 5941 printf("PtrExp::semantic('%s')\n", toChars()); | |
| 5942 tb = e1->type->toBasetype(); | |
| 5943 switch (tb->ty) | |
| 5944 { | |
| 5945 case Tpointer: | |
| 5946 type = tb->next; | |
| 5947 if (type->isbit()) | |
| 5948 { Expression *e; | |
| 5949 | |
| 5950 // Rewrite *p as p[0] | |
| 5951 e = new IndexExp(loc, e1, new IntegerExp(0)); | |
| 5952 return e->semantic(sc); | |
| 5953 } | |
| 5954 break; | |
| 5955 | |
| 5956 case Tsarray: | |
| 5957 case Tarray: | |
| 5958 type = tb->next; | |
| 5959 e1 = e1->castTo(sc, type->pointerTo()); | |
| 5960 break; | |
| 5961 | |
| 5962 default: | |
| 5963 error("can only * a pointer, not a '%s'", e1->type->toChars()); | |
| 5964 type = Type::tint32; | |
| 5965 break; | |
| 5966 } | |
| 5967 rvalue(); | |
| 5968 return this; | |
| 5969 } | |
| 5970 | |
| 5971 Expression *PtrExp::toLvalue(Scope *sc, Expression *e) | |
| 5972 { | |
| 5973 #if 0 | |
| 5974 tym = tybasic(e1->ET->Tty); | |
| 5975 if (!(tyscalar(tym) || | |
| 5976 tym == TYstruct || | |
| 5977 tym == TYarray && e->Eoper == TOKaddr)) | |
| 5978 synerr(EM_lvalue); // lvalue expected | |
| 5979 #endif | |
| 5980 return this; | |
| 5981 } | |
| 5982 | |
| 5983 void PtrExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 5984 { | |
| 5985 buf->writeByte('*'); | |
| 5986 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 5987 } | |
| 5988 | |
| 5989 /************************************************************/ | |
| 5990 | |
| 5991 NegExp::NegExp(Loc loc, Expression *e) | |
| 5992 : UnaExp(loc, TOKneg, sizeof(NegExp), e) | |
| 5993 { | |
| 5994 } | |
| 5995 | |
| 5996 Expression *NegExp::semantic(Scope *sc) | |
| 5997 { Expression *e; | |
| 5998 | |
| 5999 #if LOGSEMANTIC | |
| 6000 printf("NegExp::semantic('%s')\n", toChars()); | |
| 6001 #endif | |
| 6002 if (!type) | |
| 6003 { | |
| 6004 UnaExp::semantic(sc); | |
| 6005 e1 = resolveProperties(sc, e1); | |
| 6006 e = op_overload(sc); | |
| 6007 if (e) | |
| 6008 return e; | |
| 6009 | |
| 6010 e1->checkNoBool(); | |
| 6011 e1->checkArithmetic(); | |
| 6012 type = e1->type; | |
| 6013 } | |
| 6014 return this; | |
| 6015 } | |
| 6016 | |
| 6017 /************************************************************/ | |
| 6018 | |
| 6019 UAddExp::UAddExp(Loc loc, Expression *e) | |
| 6020 : UnaExp(loc, TOKuadd, sizeof(UAddExp), e) | |
| 6021 { | |
| 6022 } | |
| 6023 | |
| 6024 Expression *UAddExp::semantic(Scope *sc) | |
| 6025 { Expression *e; | |
| 6026 | |
| 6027 #if LOGSEMANTIC | |
| 6028 printf("UAddExp::semantic('%s')\n", toChars()); | |
| 6029 #endif | |
| 6030 assert(!type); | |
| 6031 UnaExp::semantic(sc); | |
| 6032 e1 = resolveProperties(sc, e1); | |
| 6033 e = op_overload(sc); | |
| 6034 if (e) | |
| 6035 return e; | |
| 6036 e1->checkNoBool(); | |
| 6037 e1->checkArithmetic(); | |
| 6038 return e1; | |
| 6039 } | |
| 6040 | |
| 6041 /************************************************************/ | |
| 6042 | |
| 6043 ComExp::ComExp(Loc loc, Expression *e) | |
| 6044 : UnaExp(loc, TOKtilde, sizeof(ComExp), e) | |
| 6045 { | |
| 6046 } | |
| 6047 | |
| 6048 Expression *ComExp::semantic(Scope *sc) | |
| 6049 { Expression *e; | |
| 6050 | |
| 6051 if (!type) | |
| 6052 { | |
| 6053 UnaExp::semantic(sc); | |
| 6054 e1 = resolveProperties(sc, e1); | |
| 6055 e = op_overload(sc); | |
| 6056 if (e) | |
| 6057 return e; | |
| 6058 | |
| 6059 e1->checkNoBool(); | |
| 6060 e1 = e1->checkIntegral(); | |
| 6061 type = e1->type; | |
| 6062 } | |
| 6063 return this; | |
| 6064 } | |
| 6065 | |
| 6066 /************************************************************/ | |
| 6067 | |
| 6068 NotExp::NotExp(Loc loc, Expression *e) | |
| 6069 : UnaExp(loc, TOKnot, sizeof(NotExp), e) | |
| 6070 { | |
| 6071 } | |
| 6072 | |
| 6073 Expression *NotExp::semantic(Scope *sc) | |
| 6074 { | |
| 6075 UnaExp::semantic(sc); | |
| 6076 e1 = resolveProperties(sc, e1); | |
| 6077 e1 = e1->checkToBoolean(); | |
| 6078 type = Type::tboolean; | |
| 6079 return this; | |
| 6080 } | |
| 6081 | |
| 6082 int NotExp::isBit() | |
| 6083 { | |
| 6084 return TRUE; | |
| 6085 } | |
| 6086 | |
| 6087 | |
| 6088 | |
| 6089 /************************************************************/ | |
| 6090 | |
| 6091 BoolExp::BoolExp(Loc loc, Expression *e, Type *t) | |
| 6092 : UnaExp(loc, TOKtobool, sizeof(BoolExp), e) | |
| 6093 { | |
| 6094 type = t; | |
| 6095 } | |
| 6096 | |
| 6097 Expression *BoolExp::semantic(Scope *sc) | |
| 6098 { | |
| 6099 UnaExp::semantic(sc); | |
| 6100 e1 = resolveProperties(sc, e1); | |
| 6101 e1 = e1->checkToBoolean(); | |
| 6102 type = Type::tboolean; | |
| 6103 return this; | |
| 6104 } | |
| 6105 | |
| 6106 int BoolExp::isBit() | |
| 6107 { | |
| 6108 return TRUE; | |
| 6109 } | |
| 6110 | |
| 6111 /************************************************************/ | |
| 6112 | |
| 6113 DeleteExp::DeleteExp(Loc loc, Expression *e) | |
| 6114 : UnaExp(loc, TOKdelete, sizeof(DeleteExp), e) | |
| 6115 { | |
| 6116 } | |
| 6117 | |
| 6118 Expression *DeleteExp::semantic(Scope *sc) | |
| 6119 { | |
| 6120 Type *tb; | |
| 6121 | |
| 6122 UnaExp::semantic(sc); | |
| 6123 e1 = resolveProperties(sc, e1); | |
| 6124 e1 = e1->toLvalue(sc, NULL); | |
| 6125 type = Type::tvoid; | |
| 6126 | |
| 6127 tb = e1->type->toBasetype(); | |
| 6128 switch (tb->ty) | |
| 6129 { case Tclass: | |
| 6130 { TypeClass *tc = (TypeClass *)tb; | |
| 6131 ClassDeclaration *cd = tc->sym; | |
| 6132 | |
| 6133 if (cd->isCOMinterface()) | |
| 6134 { /* Because COM classes are deleted by IUnknown.Release() | |
| 6135 */ | |
| 6136 error("cannot delete instance of COM interface %s", cd->toChars()); | |
| 6137 } | |
| 6138 break; | |
| 6139 } | |
| 6140 case Tpointer: | |
| 6141 tb = tb->next->toBasetype(); | |
| 6142 if (tb->ty == Tstruct) | |
| 6143 { | |
| 6144 TypeStruct *ts = (TypeStruct *)tb; | |
| 6145 StructDeclaration *sd = ts->sym; | |
| 6146 FuncDeclaration *f = sd->aggDelete; | |
| 6147 | |
| 6148 if (f) | |
| 6149 { | |
| 6150 Type *tpv = Type::tvoid->pointerTo(); | |
| 6151 | |
| 6152 Expression *e = e1->castTo(sc, tpv); | |
| 6153 Expression *ec = new VarExp(loc, f); | |
| 6154 e = new CallExp(loc, ec, e); | |
| 6155 return e->semantic(sc); | |
| 6156 } | |
| 6157 } | |
| 6158 break; | |
| 6159 | |
| 6160 case Tarray: | |
| 6161 break; | |
| 6162 | |
| 6163 default: | |
| 6164 if (e1->op == TOKindex) | |
| 6165 { | |
| 6166 IndexExp *ae = (IndexExp *)(e1); | |
| 6167 Type *tb1 = ae->e1->type->toBasetype(); | |
| 6168 if (tb1->ty == Taarray) | |
| 6169 break; | |
| 6170 } | |
| 6171 error("cannot delete type %s", e1->type->toChars()); | |
| 6172 break; | |
| 6173 } | |
| 6174 | |
| 6175 if (e1->op == TOKindex) | |
| 6176 { | |
| 6177 IndexExp *ae = (IndexExp *)(e1); | |
| 6178 Type *tb1 = ae->e1->type->toBasetype(); | |
| 6179 if (tb1->ty == Taarray) | |
| 6180 { if (!global.params.useDeprecated) | |
| 6181 error("delete aa[key] deprecated, use aa.remove(key)"); | |
| 6182 } | |
| 6183 } | |
| 6184 | |
| 6185 return this; | |
| 6186 } | |
| 6187 | |
| 6188 int DeleteExp::checkSideEffect(int flag) | |
| 6189 { | |
| 6190 return 1; | |
| 6191 } | |
| 6192 | |
| 6193 Expression *DeleteExp::checkToBoolean() | |
| 6194 { | |
| 6195 error("delete does not give a boolean result"); | |
| 6196 return this; | |
| 6197 } | |
| 6198 | |
| 6199 void DeleteExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6200 { | |
| 6201 buf->writestring("delete "); | |
| 6202 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 6203 } | |
| 6204 | |
| 6205 /************************************************************/ | |
| 6206 | |
| 6207 CastExp::CastExp(Loc loc, Expression *e, Type *t) | |
| 6208 : UnaExp(loc, TOKcast, sizeof(CastExp), e) | |
| 6209 { | |
| 6210 to = t; | |
| 6211 } | |
| 6212 | |
| 6213 Expression *CastExp::syntaxCopy() | |
| 6214 { | |
| 6215 return new CastExp(loc, e1->syntaxCopy(), to->syntaxCopy()); | |
| 6216 } | |
| 6217 | |
| 6218 | |
| 6219 Expression *CastExp::semantic(Scope *sc) | |
| 6220 { Expression *e; | |
| 6221 BinExp *b; | |
| 6222 UnaExp *u; | |
| 6223 | |
| 6224 #if LOGSEMANTIC | |
| 6225 printf("CastExp::semantic('%s')\n", toChars()); | |
| 6226 #endif | |
| 6227 | |
| 6228 //static int x; assert(++x < 10); | |
| 6229 | |
| 6230 if (type) | |
| 6231 return this; | |
| 6232 UnaExp::semantic(sc); | |
| 6233 if (e1->type) // if not a tuple | |
| 6234 { | |
| 6235 e1 = resolveProperties(sc, e1); | |
| 6236 to = to->semantic(loc, sc); | |
| 6237 | |
| 6238 e = op_overload(sc); | |
| 6239 if (e) | |
| 6240 { | |
| 6241 return e->implicitCastTo(sc, to); | |
| 6242 } | |
| 6243 | |
| 6244 Type *tob = to->toBasetype(); | |
| 6245 if (tob->ty == Tstruct && | |
| 6246 !tob->equals(e1->type->toBasetype()) && | |
| 6247 ((TypeStruct *)to)->sym->search(0, Id::call, 0) | |
| 6248 ) | |
| 6249 { | |
| 6250 /* Look to replace: | |
| 6251 * cast(S)t | |
| 6252 * with: | |
| 6253 * S(t) | |
| 6254 */ | |
| 6255 | |
| 6256 // Rewrite as to.call(e1) | |
| 6257 e = new TypeExp(loc, to); | |
| 6258 e = new DotIdExp(loc, e, Id::call); | |
| 6259 e = new CallExp(loc, e, e1); | |
| 6260 e = e->semantic(sc); | |
| 6261 return e; | |
| 6262 } | |
| 6263 } | |
| 6264 e = e1->castTo(sc, to); | |
| 6265 return e; | |
| 6266 } | |
| 6267 | |
| 6268 int CastExp::checkSideEffect(int flag) | |
| 6269 { | |
| 6270 /* if not: | |
| 6271 * cast(void) | |
| 6272 * cast(classtype)func() | |
| 6273 */ | |
| 6274 if (!to->equals(Type::tvoid) && | |
| 6275 !(to->ty == Tclass && e1->op == TOKcall && e1->type->ty == Tclass)) | |
| 6276 return Expression::checkSideEffect(flag); | |
| 6277 return 1; | |
| 6278 } | |
| 6279 | |
| 6280 void CastExp::checkEscape() | |
| 6281 { Type *tb = type->toBasetype(); | |
| 6282 if (tb->ty == Tarray && e1->op == TOKvar && | |
| 6283 e1->type->toBasetype()->ty == Tsarray) | |
| 6284 { VarExp *ve = (VarExp *)e1; | |
| 6285 VarDeclaration *v = ve->var->isVarDeclaration(); | |
| 6286 if (v) | |
| 6287 { | |
| 6288 if (!v->isDataseg() && !v->isParameter()) | |
| 6289 error("escaping reference to local %s", v->toChars()); | |
| 6290 } | |
| 6291 } | |
| 6292 } | |
| 6293 | |
| 6294 void CastExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6295 { | |
| 6296 buf->writestring("cast("); | |
| 6297 to->toCBuffer(buf, NULL, hgs); | |
| 6298 buf->writeByte(')'); | |
| 6299 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 6300 } | |
| 6301 | |
| 6302 | |
| 6303 /************************************************************/ | |
| 6304 | |
| 6305 SliceExp::SliceExp(Loc loc, Expression *e1, Expression *lwr, Expression *upr) | |
| 6306 : UnaExp(loc, TOKslice, sizeof(SliceExp), e1) | |
| 6307 { | |
| 6308 this->upr = upr; | |
| 6309 this->lwr = lwr; | |
| 6310 lengthVar = NULL; | |
| 6311 } | |
| 6312 | |
| 6313 Expression *SliceExp::syntaxCopy() | |
| 6314 { | |
| 6315 Expression *lwr = NULL; | |
| 6316 if (this->lwr) | |
| 6317 lwr = this->lwr->syntaxCopy(); | |
| 6318 | |
| 6319 Expression *upr = NULL; | |
| 6320 if (this->upr) | |
| 6321 upr = this->upr->syntaxCopy(); | |
| 6322 | |
| 6323 return new SliceExp(loc, e1->syntaxCopy(), lwr, upr); | |
| 6324 } | |
| 6325 | |
| 6326 Expression *SliceExp::semantic(Scope *sc) | |
| 6327 { Expression *e; | |
| 6328 AggregateDeclaration *ad; | |
| 6329 //FuncDeclaration *fd; | |
| 6330 ScopeDsymbol *sym; | |
| 6331 | |
| 6332 #if LOGSEMANTIC | |
| 6333 printf("SliceExp::semantic('%s')\n", toChars()); | |
| 6334 #endif | |
| 6335 if (type) | |
| 6336 return this; | |
| 6337 | |
| 6338 UnaExp::semantic(sc); | |
| 6339 e1 = resolveProperties(sc, e1); | |
| 6340 | |
| 6341 e = this; | |
| 6342 | |
| 6343 Type *t = e1->type->toBasetype(); | |
| 6344 if (t->ty == Tpointer) | |
| 6345 { | |
| 6346 if (!lwr || !upr) | |
| 6347 error("need upper and lower bound to slice pointer"); | |
| 6348 } | |
| 6349 else if (t->ty == Tarray) | |
| 6350 { | |
| 6351 } | |
| 6352 else if (t->ty == Tsarray) | |
| 6353 { | |
| 6354 } | |
| 6355 else if (t->ty == Tclass) | |
| 6356 { | |
| 6357 ad = ((TypeClass *)t)->sym; | |
| 6358 goto L1; | |
| 6359 } | |
| 6360 else if (t->ty == Tstruct) | |
| 6361 { | |
| 6362 ad = ((TypeStruct *)t)->sym; | |
| 6363 | |
| 6364 L1: | |
| 6365 if (search_function(ad, Id::slice)) | |
| 6366 { | |
| 6367 // Rewrite as e1.slice(lwr, upr) | |
| 6368 e = new DotIdExp(loc, e1, Id::slice); | |
| 6369 | |
| 6370 if (lwr) | |
| 6371 { | |
| 6372 assert(upr); | |
| 6373 e = new CallExp(loc, e, lwr, upr); | |
| 6374 } | |
| 6375 else | |
| 6376 { assert(!upr); | |
| 6377 e = new CallExp(loc, e); | |
| 6378 } | |
| 6379 e = e->semantic(sc); | |
| 6380 return e; | |
| 6381 } | |
| 6382 goto Lerror; | |
| 6383 } | |
| 6384 else if (t->ty == Ttuple) | |
| 6385 { | |
| 6386 if (!lwr && !upr) | |
| 6387 return e1; | |
| 6388 if (!lwr || !upr) | |
| 6389 { error("need upper and lower bound to slice tuple"); | |
| 6390 goto Lerror; | |
| 6391 } | |
| 6392 } | |
| 6393 else | |
| 6394 goto Lerror; | |
| 6395 | |
| 6396 if (t->ty == Tsarray || t->ty == Tarray || t->ty == Ttuple) | |
| 6397 { | |
| 6398 sym = new ArrayScopeSymbol(this); | |
| 6399 sym->loc = loc; | |
| 6400 sym->parent = sc->scopesym; | |
| 6401 sc = sc->push(sym); | |
| 6402 } | |
| 6403 | |
| 6404 if (lwr) | |
| 6405 { lwr = lwr->semantic(sc); | |
| 6406 lwr = resolveProperties(sc, lwr); | |
| 6407 lwr = lwr->implicitCastTo(sc, Type::tsize_t); | |
| 6408 } | |
| 6409 if (upr) | |
| 6410 { upr = upr->semantic(sc); | |
| 6411 upr = resolveProperties(sc, upr); | |
| 6412 upr = upr->implicitCastTo(sc, Type::tsize_t); | |
| 6413 } | |
| 6414 | |
| 6415 if (t->ty == Tsarray || t->ty == Tarray || t->ty == Ttuple) | |
| 6416 sc->pop(); | |
| 6417 | |
| 6418 if (t->ty == Ttuple) | |
| 6419 { | |
| 6420 lwr = lwr->optimize(WANTvalue); | |
| 6421 upr = upr->optimize(WANTvalue); | |
| 6422 uinteger_t i1 = lwr->toUInteger(); | |
| 6423 uinteger_t i2 = upr->toUInteger(); | |
| 6424 | |
| 6425 size_t length; | |
| 6426 TupleExp *te; | |
| 6427 TypeTuple *tup; | |
| 6428 | |
| 6429 if (e1->op == TOKtuple) // slicing an expression tuple | |
| 6430 { te = (TupleExp *)e1; | |
| 6431 length = te->exps->dim; | |
| 6432 } | |
| 6433 else if (e1->op == TOKtype) // slicing a type tuple | |
| 6434 { tup = (TypeTuple *)t; | |
| 6435 length = Argument::dim(tup->arguments); | |
| 6436 } | |
| 6437 else | |
| 6438 assert(0); | |
| 6439 | |
| 6440 if (i1 <= i2 && i2 <= length) | |
| 6441 { size_t j1 = (size_t) i1; | |
| 6442 size_t j2 = (size_t) i2; | |
| 6443 | |
| 6444 if (e1->op == TOKtuple) | |
| 6445 { Expressions *exps = new Expressions; | |
| 6446 exps->setDim(j2 - j1); | |
| 6447 for (size_t i = 0; i < j2 - j1; i++) | |
| 6448 { Expression *e = (Expression *)te->exps->data[j1 + i]; | |
| 6449 exps->data[i] = (void *)e; | |
| 6450 } | |
| 6451 e = new TupleExp(loc, exps); | |
| 6452 } | |
| 6453 else | |
| 6454 { Arguments *args = new Arguments; | |
| 6455 args->reserve(j2 - j1); | |
| 6456 for (size_t i = j1; i < j2; i++) | |
| 6457 { Argument *arg = Argument::getNth(tup->arguments, i); | |
| 6458 args->push(arg); | |
| 6459 } | |
| 6460 e = new TypeExp(e1->loc, new TypeTuple(args)); | |
| 6461 } | |
| 6462 e = e->semantic(sc); | |
| 6463 } | |
| 6464 else | |
| 6465 { | |
| 6466 error("string slice [%ju .. %ju] is out of bounds", i1, i2); | |
| 6467 e = e1; | |
| 6468 } | |
| 6469 return e; | |
| 6470 } | |
| 6471 | |
| 6472 type = t->next->arrayOf(); | |
| 6473 return e; | |
| 6474 | |
| 6475 Lerror: | |
| 6476 char *s; | |
| 6477 if (t->ty == Tvoid) | |
| 6478 s = e1->toChars(); | |
| 6479 else | |
| 6480 s = t->toChars(); | |
| 6481 error("%s cannot be sliced with []", s); | |
| 6482 type = Type::terror; | |
| 6483 return e; | |
| 6484 } | |
| 6485 | |
| 6486 void SliceExp::checkEscape() | |
| 6487 { | |
| 6488 e1->checkEscape(); | |
| 6489 } | |
| 6490 | |
| 6491 Expression *SliceExp::toLvalue(Scope *sc, Expression *e) | |
| 6492 { | |
| 6493 return this; | |
| 6494 } | |
| 6495 | |
| 6496 Expression *SliceExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 6497 { | |
| 6498 error("slice expression %s is not a modifiable lvalue", toChars()); | |
| 6499 return this; | |
| 6500 } | |
| 6501 | |
| 6502 void SliceExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6503 { | |
| 6504 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 6505 buf->writeByte('['); | |
| 6506 if (upr || lwr) | |
| 6507 { | |
| 6508 if (lwr) | |
| 6509 expToCBuffer(buf, hgs, lwr, PREC_assign); | |
| 6510 else | |
| 6511 buf->writeByte('0'); | |
| 6512 buf->writestring(".."); | |
| 6513 if (upr) | |
| 6514 expToCBuffer(buf, hgs, upr, PREC_assign); | |
| 6515 else | |
| 6516 buf->writestring("length"); // BUG: should be array.length | |
| 6517 } | |
| 6518 buf->writeByte(']'); | |
| 6519 } | |
| 6520 | |
| 6521 /********************** ArrayLength **************************************/ | |
| 6522 | |
| 6523 ArrayLengthExp::ArrayLengthExp(Loc loc, Expression *e1) | |
| 6524 : UnaExp(loc, TOKarraylength, sizeof(ArrayLengthExp), e1) | |
| 6525 { | |
| 6526 } | |
| 6527 | |
| 6528 Expression *ArrayLengthExp::semantic(Scope *sc) | |
| 6529 { Expression *e; | |
| 6530 | |
| 6531 #if LOGSEMANTIC | |
| 6532 printf("ArrayLengthExp::semantic('%s')\n", toChars()); | |
| 6533 #endif | |
| 6534 if (!type) | |
| 6535 { | |
| 6536 UnaExp::semantic(sc); | |
| 6537 e1 = resolveProperties(sc, e1); | |
| 6538 | |
| 6539 type = Type::tsize_t; | |
| 6540 } | |
| 6541 return this; | |
| 6542 } | |
| 6543 | |
| 6544 void ArrayLengthExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6545 { | |
| 6546 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 6547 buf->writestring(".length"); | |
| 6548 } | |
| 6549 | |
| 6550 /*********************** ArrayExp *************************************/ | |
| 6551 | |
| 6552 // e1 [ i1, i2, i3, ... ] | |
| 6553 | |
| 6554 ArrayExp::ArrayExp(Loc loc, Expression *e1, Expressions *args) | |
| 6555 : UnaExp(loc, TOKarray, sizeof(ArrayExp), e1) | |
| 6556 { | |
| 6557 arguments = args; | |
| 6558 } | |
| 6559 | |
| 6560 Expression *ArrayExp::syntaxCopy() | |
| 6561 { | |
| 6562 return new ArrayExp(loc, e1->syntaxCopy(), arraySyntaxCopy(arguments)); | |
| 6563 } | |
| 6564 | |
| 6565 Expression *ArrayExp::semantic(Scope *sc) | |
| 6566 { Expression *e; | |
| 6567 Type *t1; | |
| 6568 | |
| 6569 #if LOGSEMANTIC | |
| 6570 printf("ArrayExp::semantic('%s')\n", toChars()); | |
| 6571 #endif | |
| 6572 UnaExp::semantic(sc); | |
| 6573 e1 = resolveProperties(sc, e1); | |
| 6574 | |
| 6575 t1 = e1->type->toBasetype(); | |
| 6576 if (t1->ty != Tclass && t1->ty != Tstruct) | |
| 6577 { // Convert to IndexExp | |
| 6578 if (arguments->dim != 1) | |
| 6579 error("only one index allowed to index %s", t1->toChars()); | |
| 6580 e = new IndexExp(loc, e1, (Expression *)arguments->data[0]); | |
| 6581 return e->semantic(sc); | |
| 6582 } | |
| 6583 | |
| 6584 // Run semantic() on each argument | |
| 6585 for (size_t i = 0; i < arguments->dim; i++) | |
| 6586 { e = (Expression *)arguments->data[i]; | |
| 6587 | |
| 6588 e = e->semantic(sc); | |
| 6589 if (!e->type) | |
| 6590 error("%s has no value", e->toChars()); | |
| 6591 arguments->data[i] = (void *)e; | |
| 6592 } | |
| 6593 | |
| 6594 expandTuples(arguments); | |
| 6595 assert(arguments && arguments->dim); | |
| 6596 | |
| 6597 e = op_overload(sc); | |
| 6598 if (!e) | |
| 6599 { error("no [] operator overload for type %s", e1->type->toChars()); | |
| 6600 e = e1; | |
| 6601 } | |
| 6602 return e; | |
| 6603 } | |
| 6604 | |
| 6605 | |
| 6606 Expression *ArrayExp::toLvalue(Scope *sc, Expression *e) | |
| 6607 { | |
| 6608 if (type && type->toBasetype()->ty == Tvoid) | |
| 6609 error("voids have no value"); | |
| 6610 return this; | |
| 6611 } | |
| 6612 | |
| 6613 | |
| 6614 void ArrayExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6615 { int i; | |
| 6616 | |
| 6617 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 6618 buf->writeByte('['); | |
| 6619 argsToCBuffer(buf, arguments, hgs); | |
| 6620 buf->writeByte(']'); | |
| 6621 } | |
| 6622 | |
| 6623 /************************* DotExp ***********************************/ | |
| 6624 | |
| 6625 DotExp::DotExp(Loc loc, Expression *e1, Expression *e2) | |
| 6626 : BinExp(loc, TOKdotexp, sizeof(DotExp), e1, e2) | |
| 6627 { | |
| 6628 } | |
| 6629 | |
| 6630 Expression *DotExp::semantic(Scope *sc) | |
| 6631 { | |
| 6632 #if LOGSEMANTIC | |
| 6633 printf("DotExp::semantic('%s')\n", toChars()); | |
| 6634 if (type) printf("\ttype = %s\n", type->toChars()); | |
| 6635 #endif | |
| 6636 e1 = e1->semantic(sc); | |
| 6637 e2 = e2->semantic(sc); | |
| 6638 if (e2->op == TOKimport) | |
| 6639 { | |
| 6640 ScopeExp *se = (ScopeExp *)e2; | |
| 6641 TemplateDeclaration *td = se->sds->isTemplateDeclaration(); | |
| 6642 if (td) | |
| 6643 { Expression *e = new DotTemplateExp(loc, e1, td); | |
| 6644 e = e->semantic(sc); | |
| 6645 return e; | |
| 6646 } | |
| 6647 } | |
| 6648 if (!type) | |
| 6649 type = e2->type; | |
| 6650 return this; | |
| 6651 } | |
| 6652 | |
| 6653 | |
| 6654 /************************* CommaExp ***********************************/ | |
| 6655 | |
| 6656 CommaExp::CommaExp(Loc loc, Expression *e1, Expression *e2) | |
| 6657 : BinExp(loc, TOKcomma, sizeof(CommaExp), e1, e2) | |
| 6658 { | |
| 6659 } | |
| 6660 | |
| 6661 Expression *CommaExp::semantic(Scope *sc) | |
| 6662 { | |
| 6663 if (!type) | |
| 6664 { BinExp::semanticp(sc); | |
| 6665 type = e2->type; | |
| 6666 } | |
| 6667 return this; | |
| 6668 } | |
| 6669 | |
| 6670 void CommaExp::checkEscape() | |
| 6671 { | |
| 6672 e2->checkEscape(); | |
| 6673 } | |
| 6674 | |
| 6675 Expression *CommaExp::toLvalue(Scope *sc, Expression *e) | |
| 6676 { | |
| 6677 e2 = e2->toLvalue(sc, NULL); | |
| 6678 return this; | |
| 6679 } | |
| 6680 | |
| 6681 Expression *CommaExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 6682 { | |
| 6683 e2 = e2->modifiableLvalue(sc, e); | |
| 6684 return this; | |
| 6685 } | |
| 6686 | |
| 6687 int CommaExp::isBool(int result) | |
| 6688 { | |
| 6689 return e2->isBool(result); | |
| 6690 } | |
| 6691 | |
| 6692 int CommaExp::checkSideEffect(int flag) | |
| 6693 { | |
| 6694 if (flag == 2) | |
| 6695 return e1->checkSideEffect(2) || e2->checkSideEffect(2); | |
| 6696 else | |
| 6697 { | |
| 6698 // Don't check e1 until we cast(void) the a,b code generation | |
| 6699 return e2->checkSideEffect(flag); | |
| 6700 } | |
| 6701 } | |
| 6702 | |
| 6703 /************************** IndexExp **********************************/ | |
| 6704 | |
| 6705 // e1 [ e2 ] | |
| 6706 | |
| 6707 IndexExp::IndexExp(Loc loc, Expression *e1, Expression *e2) | |
| 6708 : BinExp(loc, TOKindex, sizeof(IndexExp), e1, e2) | |
| 6709 { | |
| 6710 //printf("IndexExp::IndexExp('%s')\n", toChars()); | |
| 6711 lengthVar = NULL; | |
| 6712 modifiable = 0; // assume it is an rvalue | |
| 6713 } | |
| 6714 | |
| 6715 Expression *IndexExp::semantic(Scope *sc) | |
| 6716 { Expression *e; | |
| 6717 BinExp *b; | |
| 6718 UnaExp *u; | |
| 6719 Type *t1; | |
| 6720 ScopeDsymbol *sym; | |
| 6721 | |
| 6722 #if LOGSEMANTIC | |
| 6723 printf("IndexExp::semantic('%s')\n", toChars()); | |
| 6724 #endif | |
| 6725 if (type) | |
| 6726 return this; | |
| 6727 if (!e1->type) | |
| 6728 e1 = e1->semantic(sc); | |
| 6729 assert(e1->type); // semantic() should already be run on it | |
| 6730 e = this; | |
| 6731 | |
| 6732 // Note that unlike C we do not implement the int[ptr] | |
| 6733 | |
| 6734 t1 = e1->type->toBasetype(); | |
| 6735 | |
| 6736 if (t1->ty == Tsarray || t1->ty == Tarray || t1->ty == Ttuple) | |
| 6737 { // Create scope for 'length' variable | |
| 6738 sym = new ArrayScopeSymbol(this); | |
| 6739 sym->loc = loc; | |
| 6740 sym->parent = sc->scopesym; | |
| 6741 sc = sc->push(sym); | |
| 6742 } | |
| 6743 | |
| 6744 e2 = e2->semantic(sc); | |
| 6745 if (!e2->type) | |
| 6746 { | |
| 6747 error("%s has no value", e2->toChars()); | |
| 6748 e2->type = Type::terror; | |
| 6749 } | |
| 6750 e2 = resolveProperties(sc, e2); | |
| 6751 | |
| 6752 if (t1->ty == Tsarray || t1->ty == Tarray || t1->ty == Ttuple) | |
| 6753 sc = sc->pop(); | |
| 6754 | |
| 6755 switch (t1->ty) | |
| 6756 { | |
| 6757 case Tpointer: | |
| 6758 case Tarray: | |
| 6759 e2 = e2->implicitCastTo(sc, Type::tsize_t); | |
| 6760 e->type = t1->next; | |
| 6761 break; | |
| 6762 | |
| 6763 case Tsarray: | |
| 6764 { | |
| 6765 e2 = e2->implicitCastTo(sc, Type::tsize_t); | |
| 6766 | |
| 6767 TypeSArray *tsa = (TypeSArray *)t1; | |
| 6768 | |
| 6769 #if 0 // Don't do now, because it might be short-circuit evaluated | |
| 6770 // Do compile time array bounds checking if possible | |
| 6771 e2 = e2->optimize(WANTvalue); | |
| 6772 if (e2->op == TOKint64) | |
| 6773 { | |
| 6774 integer_t index = e2->toInteger(); | |
| 6775 integer_t length = tsa->dim->toInteger(); | |
| 6776 if (index < 0 || index >= length) | |
| 6777 error("array index [%lld] is outside array bounds [0 .. %lld]", | |
| 6778 index, length); | |
| 6779 } | |
| 6780 #endif | |
| 6781 e->type = t1->next; | |
| 6782 break; | |
| 6783 } | |
| 6784 | |
| 6785 case Taarray: | |
| 6786 { TypeAArray *taa = (TypeAArray *)t1; | |
| 6787 | |
| 6788 e2 = e2->implicitCastTo(sc, taa->index); // type checking | |
| 6789 e2 = e2->implicitCastTo(sc, taa->key); // actual argument type | |
| 6790 type = taa->next; | |
| 6791 break; | |
| 6792 } | |
| 6793 | |
| 6794 case Ttuple: | |
| 6795 { | |
| 6796 e2 = e2->implicitCastTo(sc, Type::tsize_t); | |
| 6797 e2 = e2->optimize(WANTvalue); | |
| 6798 uinteger_t index = e2->toUInteger(); | |
| 6799 size_t length; | |
| 6800 TupleExp *te; | |
| 6801 TypeTuple *tup; | |
| 6802 | |
| 6803 if (e1->op == TOKtuple) | |
| 6804 { te = (TupleExp *)e1; | |
| 6805 length = te->exps->dim; | |
| 6806 } | |
| 6807 else if (e1->op == TOKtype) | |
| 6808 { | |
| 6809 tup = (TypeTuple *)t1; | |
| 6810 length = Argument::dim(tup->arguments); | |
| 6811 } | |
| 6812 else | |
| 6813 assert(0); | |
| 6814 | |
| 6815 if (index < length) | |
| 6816 { | |
| 6817 | |
| 6818 if (e1->op == TOKtuple) | |
| 6819 e = (Expression *)te->exps->data[(size_t)index]; | |
| 6820 else | |
| 6821 e = new TypeExp(e1->loc, Argument::getNth(tup->arguments, (size_t)index)->type); | |
| 6822 } | |
| 6823 else | |
| 6824 { | |
| 6825 error("array index [%ju] is outside array bounds [0 .. %zu]", | |
| 6826 index, length); | |
| 6827 e = e1; | |
| 6828 } | |
| 6829 break; | |
| 6830 } | |
| 6831 | |
| 6832 default: | |
| 6833 error("%s must be an array or pointer type, not %s", | |
| 6834 e1->toChars(), e1->type->toChars()); | |
| 6835 type = Type::tint32; | |
| 6836 break; | |
| 6837 } | |
| 6838 return e; | |
| 6839 } | |
| 6840 | |
| 6841 Expression *IndexExp::toLvalue(Scope *sc, Expression *e) | |
| 6842 { | |
| 6843 // if (type && type->toBasetype()->ty == Tvoid) | |
| 6844 // error("voids have no value"); | |
| 6845 return this; | |
| 6846 } | |
| 6847 | |
| 6848 Expression *IndexExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 6849 { | |
| 6850 //printf("IndexExp::modifiableLvalue(%s)\n", toChars()); | |
| 6851 modifiable = 1; | |
| 6852 if (e1->op == TOKstring) | |
| 6853 error("string literals are immutable"); | |
| 6854 if (e1->type->toBasetype()->ty == Taarray) | |
| 6855 e1 = e1->modifiableLvalue(sc, e1); | |
| 6856 return toLvalue(sc, e); | |
| 6857 } | |
| 6858 | |
| 6859 void IndexExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6860 { | |
| 6861 expToCBuffer(buf, hgs, e1, PREC_primary); | |
| 6862 buf->writeByte('['); | |
| 6863 expToCBuffer(buf, hgs, e2, PREC_assign); | |
| 6864 buf->writeByte(']'); | |
| 6865 } | |
| 6866 | |
| 6867 | |
| 6868 /************************* PostExp ***********************************/ | |
| 6869 | |
| 6870 PostExp::PostExp(enum TOK op, Loc loc, Expression *e) | |
| 6871 : BinExp(loc, op, sizeof(PostExp), e, | |
| 6872 new IntegerExp(loc, 1, Type::tint32)) | |
| 6873 { | |
| 6874 } | |
| 6875 | |
| 6876 Expression *PostExp::semantic(Scope *sc) | |
| 6877 { Expression *e = this; | |
| 6878 | |
| 6879 if (!type) | |
| 6880 { | |
| 6881 BinExp::semantic(sc); | |
| 6882 e2 = resolveProperties(sc, e2); | |
| 6883 | |
| 6884 e = op_overload(sc); | |
| 6885 if (e) | |
| 6886 return e; | |
| 6887 | |
| 6888 e = this; | |
| 6889 e1 = e1->modifiableLvalue(sc, e1); | |
| 6890 e1->checkScalar(); | |
| 6891 e1->checkNoBool(); | |
| 6892 if (e1->type->ty == Tpointer) | |
| 6893 e = scaleFactor(sc); | |
| 6894 else | |
| 6895 e2 = e2->castTo(sc, e1->type); | |
| 6896 e->type = e1->type; | |
| 6897 } | |
| 6898 return e; | |
| 6899 } | |
| 6900 | |
| 6901 void PostExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 6902 { | |
| 6903 expToCBuffer(buf, hgs, e1, precedence[op]); | |
| 6904 buf->writestring((op == TOKplusplus) ? (char *)"++" : (char *)"--"); | |
| 6905 } | |
| 6906 | |
| 6907 /************************************************************/ | |
| 6908 | |
| 6909 /* Can be TOKconstruct too */ | |
| 6910 | |
| 6911 AssignExp::AssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 6912 : BinExp(loc, TOKassign, sizeof(AssignExp), e1, e2) | |
| 6913 { | |
| 6914 ismemset = 0; | |
| 6915 } | |
| 6916 | |
| 6917 Expression *AssignExp::semantic(Scope *sc) | |
| 6918 { Type *t1; | |
| 6919 Expression *e1old = e1; | |
| 6920 | |
| 6921 #if LOGSEMANTIC | |
| 6922 printf("AssignExp::semantic('%s')\n", toChars()); | |
| 6923 #endif | |
| 6924 //printf("e1->op = %d, '%s'\n", e1->op, Token::toChars(e1->op)); | |
| 6925 | |
| 6926 /* Look for operator overloading of a[i]=value. | |
| 6927 * Do it before semantic() otherwise the a[i] will have been | |
| 6928 * converted to a.opIndex() already. | |
| 6929 */ | |
| 6930 if (e1->op == TOKarray) | |
| 6931 { Type *t1; | |
| 6932 ArrayExp *ae = (ArrayExp *)e1; | |
| 6933 AggregateDeclaration *ad; | |
| 6934 Identifier *id = Id::index; | |
| 6935 | |
| 6936 ae->e1 = ae->e1->semantic(sc); | |
| 6937 t1 = ae->e1->type->toBasetype(); | |
| 6938 if (t1->ty == Tstruct) | |
| 6939 { | |
| 6940 ad = ((TypeStruct *)t1)->sym; | |
| 6941 goto L1; | |
| 6942 } | |
| 6943 else if (t1->ty == Tclass) | |
| 6944 { | |
| 6945 ad = ((TypeClass *)t1)->sym; | |
| 6946 L1: | |
| 6947 // Rewrite (a[i] = value) to (a.opIndexAssign(value, i)) | |
| 6948 if (search_function(ad, Id::indexass)) | |
| 6949 { Expression *e = new DotIdExp(loc, ae->e1, Id::indexass); | |
| 6950 Expressions *a = (Expressions *)ae->arguments->copy(); | |
| 6951 | |
| 6952 a->insert(0, e2); | |
| 6953 e = new CallExp(loc, e, a); | |
| 6954 e = e->semantic(sc); | |
| 6955 return e; | |
| 6956 } | |
| 6957 else | |
| 6958 { | |
| 6959 // Rewrite (a[i] = value) to (a.opIndex(i, value)) | |
| 6960 if (search_function(ad, id)) | |
| 6961 { Expression *e = new DotIdExp(loc, ae->e1, id); | |
| 6962 | |
| 6963 if (1 || !global.params.useDeprecated) | |
| 6964 error("operator [] assignment overload with opIndex(i, value) illegal, use opIndexAssign(value, i)"); | |
| 6965 | |
| 6966 e = new CallExp(loc, e, (Expression *)ae->arguments->data[0], e2); | |
| 6967 e = e->semantic(sc); | |
| 6968 return e; | |
| 6969 } | |
| 6970 } | |
| 6971 } | |
| 6972 } | |
| 6973 /* Look for operator overloading of a[i..j]=value. | |
| 6974 * Do it before semantic() otherwise the a[i..j] will have been | |
| 6975 * converted to a.opSlice() already. | |
| 6976 */ | |
| 6977 if (e1->op == TOKslice) | |
| 6978 { Type *t1; | |
| 6979 SliceExp *ae = (SliceExp *)e1; | |
| 6980 AggregateDeclaration *ad; | |
| 6981 Identifier *id = Id::index; | |
| 6982 | |
| 6983 ae->e1 = ae->e1->semantic(sc); | |
| 6984 ae->e1 = resolveProperties(sc, ae->e1); | |
| 6985 t1 = ae->e1->type->toBasetype(); | |
| 6986 if (t1->ty == Tstruct) | |
| 6987 { | |
| 6988 ad = ((TypeStruct *)t1)->sym; | |
| 6989 goto L2; | |
| 6990 } | |
| 6991 else if (t1->ty == Tclass) | |
| 6992 { | |
| 6993 ad = ((TypeClass *)t1)->sym; | |
| 6994 L2: | |
| 6995 // Rewrite (a[i..j] = value) to (a.opIndexAssign(value, i, j)) | |
| 6996 if (search_function(ad, Id::sliceass)) | |
| 6997 { Expression *e = new DotIdExp(loc, ae->e1, Id::sliceass); | |
| 6998 Expressions *a = new Expressions(); | |
| 6999 | |
| 7000 a->push(e2); | |
| 7001 if (ae->lwr) | |
| 7002 { a->push(ae->lwr); | |
| 7003 assert(ae->upr); | |
| 7004 a->push(ae->upr); | |
| 7005 } | |
| 7006 else | |
| 7007 assert(!ae->upr); | |
| 7008 e = new CallExp(loc, e, a); | |
| 7009 e = e->semantic(sc); | |
| 7010 return e; | |
| 7011 } | |
| 7012 } | |
| 7013 } | |
| 7014 | |
| 7015 BinExp::semantic(sc); | |
| 7016 e2 = resolveProperties(sc, e2); | |
| 7017 assert(e1->type); | |
| 7018 | |
| 7019 /* Rewrite tuple assignment as a tuple of assignments. | |
| 7020 */ | |
| 7021 if (e1->op == TOKtuple && e2->op == TOKtuple) | |
| 7022 { TupleExp *tup1 = (TupleExp *)e1; | |
| 7023 TupleExp *tup2 = (TupleExp *)e2; | |
| 7024 size_t dim = tup1->exps->dim; | |
| 7025 if (dim != tup2->exps->dim) | |
| 7026 { | |
| 7027 error("mismatched tuple lengths, %d and %d", (int)dim, (int)tup2->exps->dim); | |
| 7028 } | |
| 7029 else | |
| 7030 { Expressions *exps = new Expressions; | |
| 7031 exps->setDim(dim); | |
| 7032 | |
| 7033 for (int i = 0; i < dim; i++) | |
| 7034 { Expression *ex1 = (Expression *)tup1->exps->data[i]; | |
| 7035 Expression *ex2 = (Expression *)tup2->exps->data[i]; | |
| 7036 exps->data[i] = (void *) new AssignExp(loc, ex1, ex2); | |
| 7037 } | |
| 7038 Expression *e = new TupleExp(loc, exps); | |
| 7039 e = e->semantic(sc); | |
| 7040 return e; | |
| 7041 } | |
| 7042 } | |
| 7043 | |
| 7044 t1 = e1->type->toBasetype(); | |
| 7045 | |
| 7046 if (t1->ty == Tfunction) | |
| 7047 { // Rewrite f=value to f(value) | |
| 7048 Expression *e; | |
| 7049 | |
| 7050 e = new CallExp(loc, e1, e2); | |
| 7051 e = e->semantic(sc); | |
| 7052 return e; | |
| 7053 } | |
| 7054 | |
| 7055 /* If it is an assignment from a 'foreign' type, | |
| 7056 * check for operator overloading. | |
| 7057 */ | |
| 7058 if (t1->ty == Tclass || t1->ty == Tstruct) | |
| 7059 { | |
| 7060 if (!e2->type->implicitConvTo(e1->type)) | |
| 7061 { | |
| 7062 Expression *e = op_overload(sc); | |
| 7063 if (e) | |
| 7064 return e; | |
| 7065 } | |
| 7066 } | |
| 7067 | |
| 7068 e2->rvalue(); | |
| 7069 | |
| 7070 if (e1->op == TOKarraylength) | |
| 7071 { | |
| 7072 // e1 is not an lvalue, but we let code generator handle it | |
| 7073 ArrayLengthExp *ale = (ArrayLengthExp *)e1; | |
| 7074 | |
| 7075 ale->e1 = ale->e1->modifiableLvalue(sc, e1); | |
| 7076 } | |
| 7077 else if (e1->op == TOKslice) | |
| 7078 ; | |
| 7079 else | |
| 7080 { // Try to do a decent error message with the expression | |
| 7081 // before it got constant folded | |
| 7082 e1 = e1->modifiableLvalue(sc, e1old); | |
| 7083 } | |
| 7084 | |
| 7085 if (e1->op == TOKslice && | |
| 7086 t1->nextOf() && | |
| 7087 e2->implicitConvTo(t1->nextOf()) | |
| 7088 // !(t1->nextOf()->equals(e2->type->nextOf())) | |
| 7089 ) | |
| 7090 { // memset | |
| 7091 ismemset = 1; // make it easy for back end to tell what this is | |
| 7092 e2 = e2->implicitCastTo(sc, t1->next); | |
| 7093 } | |
| 7094 else if (t1->ty == Tsarray) | |
| 7095 { | |
| 7096 error("cannot assign to static array %s", e1->toChars()); | |
| 7097 } | |
| 7098 else | |
| 7099 { | |
| 7100 e2 = e2->implicitCastTo(sc, e1->type); | |
| 7101 } | |
| 7102 type = e1->type; | |
| 7103 assert(type); | |
| 7104 return this; | |
| 7105 } | |
| 7106 | |
| 7107 Expression *AssignExp::checkToBoolean() | |
| 7108 { | |
| 7109 // Things like: | |
| 7110 // if (a = b) ... | |
| 7111 // are usually mistakes. | |
| 7112 | |
| 7113 error("'=' does not give a boolean result"); | |
| 7114 return this; | |
| 7115 } | |
| 7116 | |
| 7117 /************************************************************/ | |
| 7118 | |
| 7119 AddAssignExp::AddAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7120 : BinExp(loc, TOKaddass, sizeof(AddAssignExp), e1, e2) | |
| 7121 { | |
| 7122 } | |
| 7123 | |
| 7124 Expression *AddAssignExp::semantic(Scope *sc) | |
| 7125 { Expression *e; | |
| 7126 | |
| 7127 if (type) | |
| 7128 return this; | |
| 7129 | |
| 7130 BinExp::semantic(sc); | |
| 7131 e2 = resolveProperties(sc, e2); | |
| 7132 | |
| 7133 e = op_overload(sc); | |
| 7134 if (e) | |
| 7135 return e; | |
| 7136 | |
| 7137 e1 = e1->modifiableLvalue(sc, e1); | |
| 7138 | |
| 7139 Type *tb1 = e1->type->toBasetype(); | |
| 7140 Type *tb2 = e2->type->toBasetype(); | |
| 7141 | |
| 7142 if ((tb1->ty == Tarray || tb1->ty == Tsarray) && | |
| 7143 (tb2->ty == Tarray || tb2->ty == Tsarray) && | |
| 7144 tb1->next->equals(tb2->next) | |
| 7145 ) | |
| 7146 { | |
| 7147 type = e1->type; | |
| 7148 e = this; | |
| 7149 } | |
| 7150 else | |
| 7151 { | |
| 7152 e1->checkScalar(); | |
| 7153 e1->checkNoBool(); | |
| 7154 if (tb1->ty == Tpointer && tb2->isintegral()) | |
| 7155 e = scaleFactor(sc); | |
| 7156 else if (tb1->ty == Tbit || tb1->ty == Tbool) | |
| 7157 { | |
| 7158 #if 0 | |
| 7159 // Need to rethink this | |
| 7160 if (e1->op != TOKvar) | |
| 7161 { // Rewrite e1+=e2 to (v=&e1),*v=*v+e2 | |
| 7162 VarDeclaration *v; | |
| 7163 Expression *ea; | |
| 7164 Expression *ex; | |
| 7165 | |
| 7166 char name[6+6+1]; | |
| 7167 Identifier *id; | |
| 7168 static int idn; | |
| 7169 sprintf(name, "__name%d", ++idn); | |
| 7170 id = Lexer::idPool(name); | |
| 7171 | |
| 7172 v = new VarDeclaration(loc, tb1->pointerTo(), id, NULL); | |
| 7173 v->semantic(sc); | |
| 7174 if (!sc->insert(v)) | |
| 7175 assert(0); | |
| 7176 v->parent = sc->func; | |
| 7177 | |
| 7178 ea = new AddrExp(loc, e1); | |
| 7179 ea = new AssignExp(loc, new VarExp(loc, v), ea); | |
| 7180 | |
| 7181 ex = new VarExp(loc, v); | |
| 7182 ex = new PtrExp(loc, ex); | |
| 7183 e = new AddExp(loc, ex, e2); | |
| 7184 e = new CastExp(loc, e, e1->type); | |
| 7185 e = new AssignExp(loc, ex->syntaxCopy(), e); | |
| 7186 | |
| 7187 e = new CommaExp(loc, ea, e); | |
| 7188 } | |
| 7189 else | |
| 7190 #endif | |
| 7191 { // Rewrite e1+=e2 to e1=e1+e2 | |
| 7192 // BUG: doesn't account for side effects in e1 | |
| 7193 // BUG: other assignment operators for bits aren't handled at all | |
| 7194 e = new AddExp(loc, e1, e2); | |
| 7195 e = new CastExp(loc, e, e1->type); | |
| 7196 e = new AssignExp(loc, e1->syntaxCopy(), e); | |
| 7197 } | |
| 7198 e = e->semantic(sc); | |
| 7199 } | |
| 7200 else | |
| 7201 { | |
| 7202 type = e1->type; | |
| 7203 typeCombine(sc); | |
| 7204 e1->checkArithmetic(); | |
| 7205 e2->checkArithmetic(); | |
| 7206 if (type->isreal() || type->isimaginary()) | |
| 7207 { | |
| 7208 assert(global.errors || e2->type->isfloating()); | |
| 7209 e2 = e2->castTo(sc, e1->type); | |
| 7210 } | |
| 7211 e = this; | |
| 7212 } | |
| 7213 } | |
| 7214 return e; | |
| 7215 } | |
| 7216 | |
| 7217 /************************************************************/ | |
| 7218 | |
| 7219 MinAssignExp::MinAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7220 : BinExp(loc, TOKminass, sizeof(MinAssignExp), e1, e2) | |
| 7221 { | |
| 7222 } | |
| 7223 | |
| 7224 Expression *MinAssignExp::semantic(Scope *sc) | |
| 7225 { Expression *e; | |
| 7226 | |
| 7227 if (type) | |
| 7228 return this; | |
| 7229 | |
| 7230 BinExp::semantic(sc); | |
| 7231 e2 = resolveProperties(sc, e2); | |
| 7232 | |
| 7233 e = op_overload(sc); | |
| 7234 if (e) | |
| 7235 return e; | |
| 7236 | |
| 7237 e1 = e1->modifiableLvalue(sc, e1); | |
| 7238 e1->checkScalar(); | |
| 7239 e1->checkNoBool(); | |
| 7240 if (e1->type->ty == Tpointer && e2->type->isintegral()) | |
| 7241 e = scaleFactor(sc); | |
| 7242 else | |
| 7243 { | |
| 7244 e1 = e1->checkArithmetic(); | |
| 7245 e2 = e2->checkArithmetic(); | |
| 7246 type = e1->type; | |
| 7247 typeCombine(sc); | |
| 7248 if (type->isreal() || type->isimaginary()) | |
| 7249 { | |
| 7250 assert(e2->type->isfloating()); | |
| 7251 e2 = e2->castTo(sc, e1->type); | |
| 7252 } | |
| 7253 e = this; | |
| 7254 } | |
| 7255 return e; | |
| 7256 } | |
| 7257 | |
| 7258 /************************************************************/ | |
| 7259 | |
| 7260 CatAssignExp::CatAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7261 : BinExp(loc, TOKcatass, sizeof(CatAssignExp), e1, e2) | |
| 7262 { | |
| 7263 } | |
| 7264 | |
| 7265 Expression *CatAssignExp::semantic(Scope *sc) | |
| 7266 { Expression *e; | |
| 7267 | |
| 7268 BinExp::semantic(sc); | |
| 7269 e2 = resolveProperties(sc, e2); | |
| 7270 | |
| 7271 e = op_overload(sc); | |
| 7272 if (e) | |
| 7273 return e; | |
| 7274 | |
| 7275 if (e1->op == TOKslice) | |
| 7276 { SliceExp *se = (SliceExp *)e1; | |
| 7277 | |
| 7278 if (se->e1->type->toBasetype()->ty == Tsarray) | |
| 7279 error("cannot append to static array %s", se->e1->type->toChars()); | |
| 7280 } | |
| 7281 | |
| 7282 e1 = e1->modifiableLvalue(sc, e1); | |
| 7283 | |
| 7284 Type *tb1 = e1->type->toBasetype(); | |
| 7285 Type *tb2 = e2->type->toBasetype(); | |
| 7286 | |
| 7287 e2->rvalue(); | |
| 7288 | |
| 7289 if ((tb1->ty == Tarray) && | |
| 7290 (tb2->ty == Tarray || tb2->ty == Tsarray) && | |
| 7291 e2->implicitConvTo(e1->type) | |
| 7292 //e1->type->next->equals(e2->type->next) | |
| 7293 ) | |
| 7294 { // Append array | |
| 7295 e2 = e2->castTo(sc, e1->type); | |
| 7296 type = e1->type; | |
| 7297 e = this; | |
| 7298 } | |
| 7299 else if ((tb1->ty == Tarray) && | |
| 7300 e2->implicitConvTo(tb1->next) | |
| 7301 ) | |
| 7302 { // Append element | |
| 7303 e2 = e2->castTo(sc, tb1->next); | |
| 7304 type = e1->type; | |
| 7305 e = this; | |
| 7306 } | |
| 7307 else | |
| 7308 { | |
| 7309 error("cannot append type %s to type %s", tb2->toChars(), tb1->toChars()); | |
| 7310 type = Type::tint32; | |
| 7311 e = this; | |
| 7312 } | |
| 7313 return e; | |
| 7314 } | |
| 7315 | |
| 7316 /************************************************************/ | |
| 7317 | |
| 7318 MulAssignExp::MulAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7319 : BinExp(loc, TOKmulass, sizeof(MulAssignExp), e1, e2) | |
| 7320 { | |
| 7321 } | |
| 7322 | |
| 7323 Expression *MulAssignExp::semantic(Scope *sc) | |
| 7324 { Expression *e; | |
| 7325 | |
| 7326 BinExp::semantic(sc); | |
| 7327 e2 = resolveProperties(sc, e2); | |
| 7328 | |
| 7329 e = op_overload(sc); | |
| 7330 if (e) | |
| 7331 return e; | |
| 7332 | |
| 7333 e1 = e1->modifiableLvalue(sc, e1); | |
| 7334 e1->checkScalar(); | |
| 7335 e1->checkNoBool(); | |
| 7336 type = e1->type; | |
| 7337 typeCombine(sc); | |
| 7338 e1->checkArithmetic(); | |
| 7339 e2->checkArithmetic(); | |
| 7340 if (e2->type->isfloating()) | |
| 7341 { Type *t1; | |
| 7342 Type *t2; | |
| 7343 | |
| 7344 t1 = e1->type; | |
| 7345 t2 = e2->type; | |
| 7346 if (t1->isreal()) | |
| 7347 { | |
| 7348 if (t2->isimaginary() || t2->iscomplex()) | |
| 7349 { | |
| 7350 e2 = e2->castTo(sc, t1); | |
| 7351 } | |
| 7352 } | |
| 7353 else if (t1->isimaginary()) | |
| 7354 { | |
| 7355 if (t2->isimaginary() || t2->iscomplex()) | |
| 7356 { | |
| 7357 switch (t1->ty) | |
| 7358 { | |
| 7359 case Timaginary32: t2 = Type::tfloat32; break; | |
| 7360 case Timaginary64: t2 = Type::tfloat64; break; | |
| 7361 case Timaginary80: t2 = Type::tfloat80; break; | |
| 7362 default: | |
| 7363 assert(0); | |
| 7364 } | |
| 7365 e2 = e2->castTo(sc, t2); | |
| 7366 } | |
| 7367 } | |
| 7368 } | |
| 7369 return this; | |
| 7370 } | |
| 7371 | |
| 7372 /************************************************************/ | |
| 7373 | |
| 7374 DivAssignExp::DivAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7375 : BinExp(loc, TOKdivass, sizeof(DivAssignExp), e1, e2) | |
| 7376 { | |
| 7377 } | |
| 7378 | |
| 7379 Expression *DivAssignExp::semantic(Scope *sc) | |
| 7380 { Expression *e; | |
| 7381 | |
| 7382 BinExp::semantic(sc); | |
| 7383 e2 = resolveProperties(sc, e2); | |
| 7384 | |
| 7385 e = op_overload(sc); | |
| 7386 if (e) | |
| 7387 return e; | |
| 7388 | |
| 7389 e1 = e1->modifiableLvalue(sc, e1); | |
| 7390 e1->checkScalar(); | |
| 7391 e1->checkNoBool(); | |
| 7392 type = e1->type; | |
| 7393 typeCombine(sc); | |
| 7394 e1->checkArithmetic(); | |
| 7395 e2->checkArithmetic(); | |
| 7396 if (e2->type->isimaginary()) | |
| 7397 { Type *t1; | |
| 7398 Type *t2; | |
| 7399 | |
| 7400 t1 = e1->type; | |
| 7401 if (t1->isreal()) | |
| 7402 { // x/iv = i(-x/v) | |
| 7403 // Therefore, the result is 0 | |
| 7404 e2 = new CommaExp(loc, e2, new RealExp(loc, 0, t1)); | |
| 7405 e2->type = t1; | |
| 7406 e = new AssignExp(loc, e1, e2); | |
| 7407 e->type = t1; | |
| 7408 return e; | |
| 7409 } | |
| 7410 else if (t1->isimaginary()) | |
| 7411 { Expression *e; | |
| 7412 | |
| 7413 switch (t1->ty) | |
| 7414 { | |
| 7415 case Timaginary32: t2 = Type::tfloat32; break; | |
| 7416 case Timaginary64: t2 = Type::tfloat64; break; | |
| 7417 case Timaginary80: t2 = Type::tfloat80; break; | |
| 7418 default: | |
| 7419 assert(0); | |
| 7420 } | |
| 7421 e2 = e2->castTo(sc, t2); | |
| 7422 e = new AssignExp(loc, e1, e2); | |
| 7423 e->type = t1; | |
| 7424 return e; | |
| 7425 } | |
| 7426 } | |
| 7427 return this; | |
| 7428 } | |
| 7429 | |
| 7430 /************************************************************/ | |
| 7431 | |
| 7432 ModAssignExp::ModAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7433 : BinExp(loc, TOKmodass, sizeof(ModAssignExp), e1, e2) | |
| 7434 { | |
| 7435 } | |
| 7436 | |
| 7437 Expression *ModAssignExp::semantic(Scope *sc) | |
| 7438 { | |
| 7439 return commonSemanticAssign(sc); | |
| 7440 } | |
| 7441 | |
| 7442 /************************************************************/ | |
| 7443 | |
| 7444 ShlAssignExp::ShlAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7445 : BinExp(loc, TOKshlass, sizeof(ShlAssignExp), e1, e2) | |
| 7446 { | |
| 7447 } | |
| 7448 | |
| 7449 Expression *ShlAssignExp::semantic(Scope *sc) | |
| 7450 { Expression *e; | |
| 7451 | |
| 7452 //printf("ShlAssignExp::semantic()\n"); | |
| 7453 BinExp::semantic(sc); | |
| 7454 e2 = resolveProperties(sc, e2); | |
| 7455 | |
| 7456 e = op_overload(sc); | |
| 7457 if (e) | |
| 7458 return e; | |
| 7459 | |
| 7460 e1 = e1->modifiableLvalue(sc, e1); | |
| 7461 e1->checkScalar(); | |
| 7462 e1->checkNoBool(); | |
| 7463 type = e1->type; | |
| 7464 typeCombine(sc); | |
| 7465 e1->checkIntegral(); | |
| 7466 e2 = e2->checkIntegral(); | |
| 7467 //e2 = e2->castTo(sc, Type::tshiftcnt); | |
| 7468 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 7469 return this; | |
| 7470 } | |
| 7471 | |
| 7472 /************************************************************/ | |
| 7473 | |
| 7474 ShrAssignExp::ShrAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7475 : BinExp(loc, TOKshrass, sizeof(ShrAssignExp), e1, e2) | |
| 7476 { | |
| 7477 } | |
| 7478 | |
| 7479 Expression *ShrAssignExp::semantic(Scope *sc) | |
| 7480 { Expression *e; | |
| 7481 | |
| 7482 BinExp::semantic(sc); | |
| 7483 e2 = resolveProperties(sc, e2); | |
| 7484 | |
| 7485 e = op_overload(sc); | |
| 7486 if (e) | |
| 7487 return e; | |
| 7488 | |
| 7489 e1 = e1->modifiableLvalue(sc, e1); | |
| 7490 e1->checkScalar(); | |
| 7491 e1->checkNoBool(); | |
| 7492 type = e1->type; | |
| 7493 typeCombine(sc); | |
| 7494 e1->checkIntegral(); | |
| 7495 e2 = e2->checkIntegral(); | |
| 7496 //e2 = e2->castTo(sc, Type::tshiftcnt); | |
| 7497 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 7498 return this; | |
| 7499 } | |
| 7500 | |
| 7501 /************************************************************/ | |
| 7502 | |
| 7503 UshrAssignExp::UshrAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7504 : BinExp(loc, TOKushrass, sizeof(UshrAssignExp), e1, e2) | |
| 7505 { | |
| 7506 } | |
| 7507 | |
| 7508 Expression *UshrAssignExp::semantic(Scope *sc) | |
| 7509 { Expression *e; | |
| 7510 | |
| 7511 BinExp::semantic(sc); | |
| 7512 e2 = resolveProperties(sc, e2); | |
| 7513 | |
| 7514 e = op_overload(sc); | |
| 7515 if (e) | |
| 7516 return e; | |
| 7517 | |
| 7518 e1 = e1->modifiableLvalue(sc, e1); | |
| 7519 e1->checkScalar(); | |
| 7520 e1->checkNoBool(); | |
| 7521 type = e1->type; | |
| 7522 typeCombine(sc); | |
| 7523 e1->checkIntegral(); | |
| 7524 e2 = e2->checkIntegral(); | |
| 7525 //e2 = e2->castTo(sc, Type::tshiftcnt); | |
| 7526 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 7527 return this; | |
| 7528 } | |
| 7529 | |
| 7530 /************************************************************/ | |
| 7531 | |
| 7532 AndAssignExp::AndAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7533 : BinExp(loc, TOKandass, sizeof(AndAssignExp), e1, e2) | |
| 7534 { | |
| 7535 } | |
| 7536 | |
| 7537 Expression *AndAssignExp::semantic(Scope *sc) | |
| 7538 { | |
| 7539 return commonSemanticAssignIntegral(sc); | |
| 7540 } | |
| 7541 | |
| 7542 /************************************************************/ | |
| 7543 | |
| 7544 OrAssignExp::OrAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7545 : BinExp(loc, TOKorass, sizeof(OrAssignExp), e1, e2) | |
| 7546 { | |
| 7547 } | |
| 7548 | |
| 7549 Expression *OrAssignExp::semantic(Scope *sc) | |
| 7550 { | |
| 7551 return commonSemanticAssignIntegral(sc); | |
| 7552 } | |
| 7553 | |
| 7554 /************************************************************/ | |
| 7555 | |
| 7556 XorAssignExp::XorAssignExp(Loc loc, Expression *e1, Expression *e2) | |
| 7557 : BinExp(loc, TOKxorass, sizeof(XorAssignExp), e1, e2) | |
| 7558 { | |
| 7559 } | |
| 7560 | |
| 7561 Expression *XorAssignExp::semantic(Scope *sc) | |
| 7562 { | |
| 7563 return commonSemanticAssignIntegral(sc); | |
| 7564 } | |
| 7565 | |
| 7566 /************************* AddExp *****************************/ | |
| 7567 | |
| 7568 AddExp::AddExp(Loc loc, Expression *e1, Expression *e2) | |
| 7569 : BinExp(loc, TOKadd, sizeof(AddExp), e1, e2) | |
| 7570 { | |
| 7571 llvmFieldIndex = false; | |
| 7572 } | |
| 7573 | |
| 7574 Expression *AddExp::semantic(Scope *sc) | |
| 7575 { Expression *e; | |
| 7576 | |
| 7577 #if LOGSEMANTIC | |
| 7578 printf("AddExp::semantic('%s')\n", toChars()); | |
| 7579 #endif | |
| 7580 if (!type) | |
| 7581 { | |
| 7582 BinExp::semanticp(sc); | |
| 7583 | |
| 7584 e = op_overload(sc); | |
| 7585 if (e) | |
| 7586 return e; | |
| 7587 | |
| 7588 Type *tb1 = e1->type->toBasetype(); | |
| 7589 Type *tb2 = e2->type->toBasetype(); | |
| 7590 | |
| 7591 if ((tb1->ty == Tarray || tb1->ty == Tsarray) && | |
| 7592 (tb2->ty == Tarray || tb2->ty == Tsarray) && | |
| 7593 tb1->next->equals(tb2->next) | |
| 7594 ) | |
| 7595 { | |
| 7596 type = e1->type; | |
| 7597 e = this; | |
| 7598 } | |
| 7599 else if (tb1->ty == Tpointer && e2->type->isintegral() || | |
| 7600 tb2->ty == Tpointer && e1->type->isintegral()) | |
| 7601 e = scaleFactor(sc); | |
| 7602 else if (tb1->ty == Tpointer && tb2->ty == Tpointer) | |
| 7603 { | |
| 7604 incompatibleTypes(); | |
| 7605 type = e1->type; | |
| 7606 e = this; | |
| 7607 } | |
| 7608 else | |
| 7609 { | |
| 7610 typeCombine(sc); | |
| 7611 if ((e1->type->isreal() && e2->type->isimaginary()) || | |
| 7612 (e1->type->isimaginary() && e2->type->isreal())) | |
| 7613 { | |
| 7614 switch (type->toBasetype()->ty) | |
| 7615 { | |
| 7616 case Tfloat32: | |
| 7617 case Timaginary32: | |
| 7618 type = Type::tcomplex32; | |
| 7619 break; | |
| 7620 | |
| 7621 case Tfloat64: | |
| 7622 case Timaginary64: | |
| 7623 type = Type::tcomplex64; | |
| 7624 break; | |
| 7625 | |
| 7626 case Tfloat80: | |
| 7627 case Timaginary80: | |
| 7628 type = Type::tcomplex80; | |
| 7629 break; | |
| 7630 | |
| 7631 default: | |
| 7632 assert(0); | |
| 7633 } | |
| 7634 } | |
| 7635 e = this; | |
| 7636 } | |
| 7637 return e; | |
| 7638 } | |
| 7639 return this; | |
| 7640 } | |
| 7641 | |
| 7642 /************************************************************/ | |
| 7643 | |
| 7644 MinExp::MinExp(Loc loc, Expression *e1, Expression *e2) | |
| 7645 : BinExp(loc, TOKmin, sizeof(MinExp), e1, e2) | |
| 7646 { | |
| 7647 } | |
| 7648 | |
| 7649 Expression *MinExp::semantic(Scope *sc) | |
| 7650 { Expression *e; | |
| 7651 Type *t1; | |
| 7652 Type *t2; | |
| 7653 | |
| 7654 #if LOGSEMANTIC | |
| 7655 printf("MinExp::semantic('%s')\n", toChars()); | |
| 7656 #endif | |
| 7657 if (type) | |
| 7658 return this; | |
| 7659 | |
| 7660 BinExp::semanticp(sc); | |
| 7661 | |
| 7662 e = op_overload(sc); | |
| 7663 if (e) | |
| 7664 return e; | |
| 7665 | |
| 7666 e = this; | |
| 7667 t1 = e1->type->toBasetype(); | |
| 7668 t2 = e2->type->toBasetype(); | |
| 7669 if (t1->ty == Tpointer) | |
| 7670 { | |
| 7671 if (t2->ty == Tpointer) | |
| 7672 { // Need to divide the result by the stride | |
| 7673 // Replace (ptr - ptr) with (ptr - ptr) / stride | |
| 7674 d_int64 stride; | |
| 7675 Expression *e; | |
| 7676 | |
| 7677 typeCombine(sc); // make sure pointer types are compatible | |
| 7678 type = Type::tptrdiff_t; | |
| 7679 stride = t2->next->size(); | |
| 7680 e = new DivExp(loc, this, new IntegerExp(0, stride, Type::tptrdiff_t)); | |
| 7681 e->type = Type::tptrdiff_t; | |
| 7682 return e; | |
| 7683 } | |
| 7684 else if (t2->isintegral()) | |
| 7685 e = scaleFactor(sc); | |
| 7686 else | |
| 7687 { error("incompatible types for -"); | |
| 7688 return new IntegerExp(0); | |
| 7689 } | |
| 7690 } | |
| 7691 else if (t2->ty == Tpointer) | |
| 7692 { | |
| 7693 type = e2->type; | |
| 7694 error("can't subtract pointer from %s", e1->type->toChars()); | |
| 7695 return new IntegerExp(0); | |
| 7696 } | |
| 7697 else | |
| 7698 { | |
| 7699 typeCombine(sc); | |
| 7700 t1 = e1->type->toBasetype(); | |
| 7701 t2 = e2->type->toBasetype(); | |
| 7702 if ((t1->isreal() && t2->isimaginary()) || | |
| 7703 (t1->isimaginary() && t2->isreal())) | |
| 7704 { | |
| 7705 switch (type->ty) | |
| 7706 { | |
| 7707 case Tfloat32: | |
| 7708 case Timaginary32: | |
| 7709 type = Type::tcomplex32; | |
| 7710 break; | |
| 7711 | |
| 7712 case Tfloat64: | |
| 7713 case Timaginary64: | |
| 7714 type = Type::tcomplex64; | |
| 7715 break; | |
| 7716 | |
| 7717 case Tfloat80: | |
| 7718 case Timaginary80: | |
| 7719 type = Type::tcomplex80; | |
| 7720 break; | |
| 7721 | |
| 7722 default: | |
| 7723 assert(0); | |
| 7724 } | |
| 7725 } | |
| 7726 } | |
| 7727 return e; | |
| 7728 } | |
| 7729 | |
| 7730 /************************* CatExp *****************************/ | |
| 7731 | |
| 7732 CatExp::CatExp(Loc loc, Expression *e1, Expression *e2) | |
| 7733 : BinExp(loc, TOKcat, sizeof(CatExp), e1, e2) | |
| 7734 { | |
| 7735 } | |
| 7736 | |
| 7737 Expression *CatExp::semantic(Scope *sc) | |
| 7738 { Expression *e; | |
| 7739 | |
| 7740 //printf("CatExp::semantic() %s\n", toChars()); | |
| 7741 if (!type) | |
| 7742 { | |
| 7743 BinExp::semanticp(sc); | |
| 7744 e = op_overload(sc); | |
| 7745 if (e) | |
| 7746 return e; | |
| 7747 | |
| 7748 Type *tb1 = e1->type->toBasetype(); | |
| 7749 Type *tb2 = e2->type->toBasetype(); | |
| 7750 | |
| 7751 | |
| 7752 /* BUG: Should handle things like: | |
| 7753 * char c; | |
| 7754 * c ~ ' ' | |
| 7755 * ' ' ~ c; | |
| 7756 */ | |
| 7757 | |
| 7758 #if 0 | |
| 7759 e1->type->print(); | |
| 7760 e2->type->print(); | |
| 7761 #endif | |
| 7762 if ((tb1->ty == Tsarray || tb1->ty == Tarray) && | |
| 7763 e2->type->equals(tb1->next)) | |
| 7764 { | |
| 7765 type = tb1->next->arrayOf(); | |
| 7766 if (tb2->ty == Tarray) | |
| 7767 { // Make e2 into [e2] | |
| 7768 e2 = new ArrayLiteralExp(e2->loc, e2); | |
| 7769 e2->type = type; | |
| 7770 } | |
| 7771 return this; | |
| 7772 } | |
| 7773 else if ((tb2->ty == Tsarray || tb2->ty == Tarray) && | |
| 7774 e1->type->equals(tb2->next)) | |
| 7775 { | |
| 7776 type = tb2->next->arrayOf(); | |
| 7777 if (tb1->ty == Tarray) | |
| 7778 { // Make e1 into [e1] | |
| 7779 e1 = new ArrayLiteralExp(e1->loc, e1); | |
| 7780 e1->type = type; | |
| 7781 } | |
| 7782 return this; | |
| 7783 } | |
| 7784 | |
| 7785 typeCombine(sc); | |
| 7786 | |
| 7787 if (type->toBasetype()->ty == Tsarray) | |
| 7788 type = type->toBasetype()->next->arrayOf(); | |
| 7789 #if 0 | |
| 7790 e1->type->print(); | |
| 7791 e2->type->print(); | |
| 7792 type->print(); | |
| 7793 print(); | |
| 7794 #endif | |
| 7795 if (e1->op == TOKstring && e2->op == TOKstring) | |
| 7796 e = optimize(WANTvalue); | |
| 7797 else if (e1->type->equals(e2->type) && | |
| 7798 (e1->type->toBasetype()->ty == Tarray || | |
| 7799 e1->type->toBasetype()->ty == Tsarray)) | |
| 7800 { | |
| 7801 e = this; | |
| 7802 } | |
| 7803 else | |
| 7804 { | |
| 7805 error("Can only concatenate arrays, not (%s ~ %s)", | |
| 7806 e1->type->toChars(), e2->type->toChars()); | |
| 7807 type = Type::tint32; | |
| 7808 e = this; | |
| 7809 } | |
| 7810 e->type = e->type->semantic(loc, sc); | |
| 7811 return e; | |
| 7812 } | |
| 7813 return this; | |
| 7814 } | |
| 7815 | |
| 7816 /************************************************************/ | |
| 7817 | |
| 7818 MulExp::MulExp(Loc loc, Expression *e1, Expression *e2) | |
| 7819 : BinExp(loc, TOKmul, sizeof(MulExp), e1, e2) | |
| 7820 { | |
| 7821 } | |
| 7822 | |
| 7823 Expression *MulExp::semantic(Scope *sc) | |
| 7824 { Expression *e; | |
| 7825 | |
| 7826 #if 0 | |
| 7827 printf("MulExp::semantic() %s\n", toChars()); | |
| 7828 #endif | |
| 7829 if (type) | |
| 7830 { | |
| 7831 return this; | |
| 7832 } | |
| 7833 | |
| 7834 BinExp::semanticp(sc); | |
| 7835 e = op_overload(sc); | |
| 7836 if (e) | |
| 7837 return e; | |
| 7838 | |
| 7839 typeCombine(sc); | |
| 7840 e1->checkArithmetic(); | |
| 7841 e2->checkArithmetic(); | |
| 7842 if (type->isfloating()) | |
| 7843 { Type *t1 = e1->type; | |
| 7844 Type *t2 = e2->type; | |
| 7845 | |
| 7846 if (t1->isreal()) | |
| 7847 { | |
| 7848 type = t2; | |
| 7849 } | |
| 7850 else if (t2->isreal()) | |
| 7851 { | |
| 7852 type = t1; | |
| 7853 } | |
| 7854 else if (t1->isimaginary()) | |
| 7855 { | |
| 7856 if (t2->isimaginary()) | |
| 7857 { Expression *e; | |
| 7858 | |
| 7859 switch (t1->ty) | |
| 7860 { | |
| 7861 case Timaginary32: type = Type::tfloat32; break; | |
| 7862 case Timaginary64: type = Type::tfloat64; break; | |
| 7863 case Timaginary80: type = Type::tfloat80; break; | |
| 7864 default: assert(0); | |
| 7865 } | |
| 7866 | |
| 7867 // iy * iv = -yv | |
| 7868 e1->type = type; | |
| 7869 e2->type = type; | |
| 7870 e = new NegExp(loc, this); | |
| 7871 e = e->semantic(sc); | |
| 7872 return e; | |
| 7873 } | |
| 7874 else | |
| 7875 type = t2; // t2 is complex | |
| 7876 } | |
| 7877 else if (t2->isimaginary()) | |
| 7878 { | |
| 7879 type = t1; // t1 is complex | |
| 7880 } | |
| 7881 } | |
| 7882 return this; | |
| 7883 } | |
| 7884 | |
| 7885 /************************************************************/ | |
| 7886 | |
| 7887 DivExp::DivExp(Loc loc, Expression *e1, Expression *e2) | |
| 7888 : BinExp(loc, TOKdiv, sizeof(DivExp), e1, e2) | |
| 7889 { | |
| 7890 } | |
| 7891 | |
| 7892 Expression *DivExp::semantic(Scope *sc) | |
| 7893 { Expression *e; | |
| 7894 | |
| 7895 if (type) | |
| 7896 return this; | |
| 7897 | |
| 7898 BinExp::semanticp(sc); | |
| 7899 e = op_overload(sc); | |
| 7900 if (e) | |
| 7901 return e; | |
| 7902 | |
| 7903 typeCombine(sc); | |
| 7904 e1->checkArithmetic(); | |
| 7905 e2->checkArithmetic(); | |
| 7906 if (type->isfloating()) | |
| 7907 { Type *t1 = e1->type; | |
| 7908 Type *t2 = e2->type; | |
| 7909 | |
| 7910 if (t1->isreal()) | |
| 7911 { | |
| 7912 type = t2; | |
| 7913 if (t2->isimaginary()) | |
| 7914 { Expression *e; | |
| 7915 | |
| 7916 // x/iv = i(-x/v) | |
| 7917 e2->type = t1; | |
| 7918 e = new NegExp(loc, this); | |
| 7919 e = e->semantic(sc); | |
| 7920 return e; | |
| 7921 } | |
| 7922 } | |
| 7923 else if (t2->isreal()) | |
| 7924 { | |
| 7925 type = t1; | |
| 7926 } | |
| 7927 else if (t1->isimaginary()) | |
| 7928 { | |
| 7929 if (t2->isimaginary()) | |
| 7930 { | |
| 7931 switch (t1->ty) | |
| 7932 { | |
| 7933 case Timaginary32: type = Type::tfloat32; break; | |
| 7934 case Timaginary64: type = Type::tfloat64; break; | |
| 7935 case Timaginary80: type = Type::tfloat80; break; | |
| 7936 default: assert(0); | |
| 7937 } | |
| 7938 } | |
| 7939 else | |
| 7940 type = t2; // t2 is complex | |
| 7941 } | |
| 7942 else if (t2->isimaginary()) | |
| 7943 { | |
| 7944 type = t1; // t1 is complex | |
| 7945 } | |
| 7946 } | |
| 7947 return this; | |
| 7948 } | |
| 7949 | |
| 7950 /************************************************************/ | |
| 7951 | |
| 7952 ModExp::ModExp(Loc loc, Expression *e1, Expression *e2) | |
| 7953 : BinExp(loc, TOKmod, sizeof(ModExp), e1, e2) | |
| 7954 { | |
| 7955 } | |
| 7956 | |
| 7957 Expression *ModExp::semantic(Scope *sc) | |
| 7958 { Expression *e; | |
| 7959 | |
| 7960 if (type) | |
| 7961 return this; | |
| 7962 | |
| 7963 BinExp::semanticp(sc); | |
| 7964 e = op_overload(sc); | |
| 7965 if (e) | |
| 7966 return e; | |
| 7967 | |
| 7968 typeCombine(sc); | |
| 7969 e1->checkArithmetic(); | |
| 7970 e2->checkArithmetic(); | |
| 7971 if (type->isfloating()) | |
| 7972 { type = e1->type; | |
| 7973 if (e2->type->iscomplex()) | |
| 7974 { error("cannot perform modulo complex arithmetic"); | |
| 7975 return new IntegerExp(0); | |
| 7976 } | |
| 7977 } | |
| 7978 return this; | |
| 7979 } | |
| 7980 | |
| 7981 /************************************************************/ | |
| 7982 | |
| 7983 ShlExp::ShlExp(Loc loc, Expression *e1, Expression *e2) | |
| 7984 : BinExp(loc, TOKshl, sizeof(ShlExp), e1, e2) | |
| 7985 { | |
| 7986 } | |
| 7987 | |
| 7988 Expression *ShlExp::semantic(Scope *sc) | |
| 7989 { Expression *e; | |
| 7990 | |
| 7991 //printf("ShlExp::semantic(), type = %p\n", type); | |
| 7992 if (!type) | |
| 7993 { BinExp::semanticp(sc); | |
| 7994 e = op_overload(sc); | |
| 7995 if (e) | |
| 7996 return e; | |
| 7997 e1 = e1->checkIntegral(); | |
| 7998 e2 = e2->checkIntegral(); | |
| 7999 e1 = e1->integralPromotions(sc); | |
| 8000 //e2 = e2->castTo(sc, Type::tshiftcnt); | |
| 8001 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 8002 type = e1->type; | |
| 8003 } | |
| 8004 return this; | |
| 8005 } | |
| 8006 | |
| 8007 /************************************************************/ | |
| 8008 | |
| 8009 ShrExp::ShrExp(Loc loc, Expression *e1, Expression *e2) | |
| 8010 : BinExp(loc, TOKshr, sizeof(ShrExp), e1, e2) | |
| 8011 { | |
| 8012 } | |
| 8013 | |
| 8014 Expression *ShrExp::semantic(Scope *sc) | |
| 8015 { Expression *e; | |
| 8016 | |
| 8017 if (!type) | |
| 8018 { BinExp::semanticp(sc); | |
| 8019 e = op_overload(sc); | |
| 8020 if (e) | |
| 8021 return e; | |
| 8022 e1 = e1->checkIntegral(); | |
| 8023 e2 = e2->checkIntegral(); | |
| 8024 e1 = e1->integralPromotions(sc); | |
| 8025 //e2 = e2->castTo(sc, Type::tshiftcnt); | |
| 8026 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 8027 type = e1->type; | |
| 8028 } | |
| 8029 return this; | |
| 8030 } | |
| 8031 | |
| 8032 /************************************************************/ | |
| 8033 | |
| 8034 UshrExp::UshrExp(Loc loc, Expression *e1, Expression *e2) | |
| 8035 : BinExp(loc, TOKushr, sizeof(UshrExp), e1, e2) | |
| 8036 { | |
| 8037 } | |
| 8038 | |
| 8039 Expression *UshrExp::semantic(Scope *sc) | |
| 8040 { Expression *e; | |
| 8041 | |
| 8042 if (!type) | |
| 8043 { BinExp::semanticp(sc); | |
| 8044 e = op_overload(sc); | |
| 8045 if (e) | |
| 8046 return e; | |
| 8047 e1 = e1->checkIntegral(); | |
| 8048 e2 = e2->checkIntegral(); | |
| 8049 e1 = e1->integralPromotions(sc); | |
| 8050 //e2 = e2->castTo(sc, Type::tshiftcnt); | |
| 8051 e2 = e2->castTo(sc, e1->type); // LLVMDC | |
| 8052 type = e1->type; | |
| 8053 } | |
| 8054 return this; | |
| 8055 } | |
| 8056 | |
| 8057 /************************************************************/ | |
| 8058 | |
| 8059 AndExp::AndExp(Loc loc, Expression *e1, Expression *e2) | |
| 8060 : BinExp(loc, TOKand, sizeof(AndExp), e1, e2) | |
| 8061 { | |
| 8062 } | |
| 8063 | |
| 8064 Expression *AndExp::semantic(Scope *sc) | |
| 8065 { Expression *e; | |
| 8066 | |
| 8067 if (!type) | |
| 8068 { BinExp::semanticp(sc); | |
| 8069 e = op_overload(sc); | |
| 8070 if (e) | |
| 8071 return e; | |
| 8072 if (e1->type->toBasetype()->ty == Tbool && | |
| 8073 e2->type->toBasetype()->ty == Tbool) | |
| 8074 { | |
| 8075 type = e1->type; | |
| 8076 e = this; | |
| 8077 } | |
| 8078 else | |
| 8079 { | |
| 8080 typeCombine(sc); | |
| 8081 e1->checkIntegral(); | |
| 8082 e2->checkIntegral(); | |
| 8083 } | |
| 8084 } | |
| 8085 return this; | |
| 8086 } | |
| 8087 | |
| 8088 /************************************************************/ | |
| 8089 | |
| 8090 OrExp::OrExp(Loc loc, Expression *e1, Expression *e2) | |
| 8091 : BinExp(loc, TOKor, sizeof(OrExp), e1, e2) | |
| 8092 { | |
| 8093 } | |
| 8094 | |
| 8095 Expression *OrExp::semantic(Scope *sc) | |
| 8096 { Expression *e; | |
| 8097 | |
| 8098 if (!type) | |
| 8099 { BinExp::semanticp(sc); | |
| 8100 e = op_overload(sc); | |
| 8101 if (e) | |
| 8102 return e; | |
| 8103 if (e1->type->toBasetype()->ty == Tbool && | |
| 8104 e2->type->toBasetype()->ty == Tbool) | |
| 8105 { | |
| 8106 type = e1->type; | |
| 8107 e = this; | |
| 8108 } | |
| 8109 else | |
| 8110 { | |
| 8111 typeCombine(sc); | |
| 8112 e1->checkIntegral(); | |
| 8113 e2->checkIntegral(); | |
| 8114 } | |
| 8115 } | |
| 8116 return this; | |
| 8117 } | |
| 8118 | |
| 8119 /************************************************************/ | |
| 8120 | |
| 8121 XorExp::XorExp(Loc loc, Expression *e1, Expression *e2) | |
| 8122 : BinExp(loc, TOKxor, sizeof(XorExp), e1, e2) | |
| 8123 { | |
| 8124 } | |
| 8125 | |
| 8126 Expression *XorExp::semantic(Scope *sc) | |
| 8127 { Expression *e; | |
| 8128 | |
| 8129 if (!type) | |
| 8130 { BinExp::semanticp(sc); | |
| 8131 e = op_overload(sc); | |
| 8132 if (e) | |
| 8133 return e; | |
| 8134 if (e1->type->toBasetype()->ty == Tbool && | |
| 8135 e2->type->toBasetype()->ty == Tbool) | |
| 8136 { | |
| 8137 type = e1->type; | |
| 8138 e = this; | |
| 8139 } | |
| 8140 else | |
| 8141 { | |
| 8142 typeCombine(sc); | |
| 8143 e1->checkIntegral(); | |
| 8144 e2->checkIntegral(); | |
| 8145 } | |
| 8146 } | |
| 8147 return this; | |
| 8148 } | |
| 8149 | |
| 8150 | |
| 8151 /************************************************************/ | |
| 8152 | |
| 8153 OrOrExp::OrOrExp(Loc loc, Expression *e1, Expression *e2) | |
| 8154 : BinExp(loc, TOKoror, sizeof(OrOrExp), e1, e2) | |
| 8155 { | |
| 8156 } | |
| 8157 | |
| 8158 Expression *OrOrExp::semantic(Scope *sc) | |
| 8159 { | |
| 8160 unsigned cs1; | |
| 8161 | |
| 8162 // same as for AndAnd | |
| 8163 e1 = e1->semantic(sc); | |
| 8164 e1 = resolveProperties(sc, e1); | |
| 8165 e1 = e1->checkToPointer(); | |
| 8166 e1 = e1->checkToBoolean(); | |
| 8167 cs1 = sc->callSuper; | |
| 8168 | |
| 8169 if (sc->flags & SCOPEstaticif) | |
| 8170 { | |
| 8171 /* If in static if, don't evaluate e2 if we don't have to. | |
| 8172 */ | |
| 8173 e1 = e1->optimize(WANTflags); | |
| 8174 if (e1->isBool(TRUE)) | |
| 8175 { | |
| 8176 return new IntegerExp(loc, 1, Type::tboolean); | |
| 8177 } | |
| 8178 } | |
| 8179 | |
| 8180 e2 = e2->semantic(sc); | |
| 8181 sc->mergeCallSuper(loc, cs1); | |
| 8182 e2 = resolveProperties(sc, e2); | |
| 8183 e2 = e2->checkToPointer(); | |
| 8184 | |
| 8185 type = Type::tboolean; | |
| 8186 if (e1->type->ty == Tvoid) | |
| 8187 type = Type::tvoid; | |
| 8188 if (e2->op == TOKtype || e2->op == TOKimport) | |
| 8189 error("%s is not an expression", e2->toChars()); | |
| 8190 return this; | |
| 8191 } | |
| 8192 | |
| 8193 Expression *OrOrExp::checkToBoolean() | |
| 8194 { | |
| 8195 e2 = e2->checkToBoolean(); | |
| 8196 return this; | |
| 8197 } | |
| 8198 | |
| 8199 int OrOrExp::isBit() | |
| 8200 { | |
| 8201 return TRUE; | |
| 8202 } | |
| 8203 | |
| 8204 int OrOrExp::checkSideEffect(int flag) | |
| 8205 { | |
| 8206 if (flag == 2) | |
| 8207 { | |
| 8208 return e1->checkSideEffect(2) || e2->checkSideEffect(2); | |
| 8209 } | |
| 8210 else | |
| 8211 { e1->checkSideEffect(1); | |
| 8212 return e2->checkSideEffect(flag); | |
| 8213 } | |
| 8214 } | |
| 8215 | |
| 8216 /************************************************************/ | |
| 8217 | |
| 8218 AndAndExp::AndAndExp(Loc loc, Expression *e1, Expression *e2) | |
| 8219 : BinExp(loc, TOKandand, sizeof(AndAndExp), e1, e2) | |
| 8220 { | |
| 8221 } | |
| 8222 | |
| 8223 Expression *AndAndExp::semantic(Scope *sc) | |
| 8224 { | |
| 8225 unsigned cs1; | |
| 8226 | |
| 8227 // same as for OrOr | |
| 8228 e1 = e1->semantic(sc); | |
| 8229 e1 = resolveProperties(sc, e1); | |
| 8230 e1 = e1->checkToPointer(); | |
| 8231 e1 = e1->checkToBoolean(); | |
| 8232 cs1 = sc->callSuper; | |
| 8233 | |
| 8234 if (sc->flags & SCOPEstaticif) | |
| 8235 { | |
| 8236 /* If in static if, don't evaluate e2 if we don't have to. | |
| 8237 */ | |
| 8238 e1 = e1->optimize(WANTflags); | |
| 8239 if (e1->isBool(FALSE)) | |
| 8240 { | |
| 8241 return new IntegerExp(loc, 0, Type::tboolean); | |
| 8242 } | |
| 8243 } | |
| 8244 | |
| 8245 e2 = e2->semantic(sc); | |
| 8246 sc->mergeCallSuper(loc, cs1); | |
| 8247 e2 = resolveProperties(sc, e2); | |
| 8248 e2 = e2->checkToPointer(); | |
| 8249 | |
| 8250 type = Type::tboolean; | |
| 8251 if (e1->type->ty == Tvoid) | |
| 8252 type = Type::tvoid; | |
| 8253 if (e2->op == TOKtype || e2->op == TOKimport) | |
| 8254 error("%s is not an expression", e2->toChars()); | |
| 8255 return this; | |
| 8256 } | |
| 8257 | |
| 8258 Expression *AndAndExp::checkToBoolean() | |
| 8259 { | |
| 8260 e2 = e2->checkToBoolean(); | |
| 8261 return this; | |
| 8262 } | |
| 8263 | |
| 8264 int AndAndExp::isBit() | |
| 8265 { | |
| 8266 return TRUE; | |
| 8267 } | |
| 8268 | |
| 8269 int AndAndExp::checkSideEffect(int flag) | |
| 8270 { | |
| 8271 if (flag == 2) | |
| 8272 { | |
| 8273 return e1->checkSideEffect(2) || e2->checkSideEffect(2); | |
| 8274 } | |
| 8275 else | |
| 8276 { | |
| 8277 e1->checkSideEffect(1); | |
| 8278 return e2->checkSideEffect(flag); | |
| 8279 } | |
| 8280 } | |
| 8281 | |
| 8282 /************************************************************/ | |
| 8283 | |
| 8284 InExp::InExp(Loc loc, Expression *e1, Expression *e2) | |
| 8285 : BinExp(loc, TOKin, sizeof(InExp), e1, e2) | |
| 8286 { | |
| 8287 } | |
| 8288 | |
| 8289 Expression *InExp::semantic(Scope *sc) | |
| 8290 { Expression *e; | |
| 8291 | |
| 8292 if (type) | |
| 8293 return this; | |
| 8294 | |
| 8295 BinExp::semanticp(sc); | |
| 8296 e = op_overload(sc); | |
| 8297 if (e) | |
| 8298 return e; | |
| 8299 | |
| 8300 //type = Type::tboolean; | |
| 8301 Type *t2b = e2->type->toBasetype(); | |
| 8302 if (t2b->ty != Taarray) | |
| 8303 { | |
| 8304 error("rvalue of in expression must be an associative array, not %s", e2->type->toChars()); | |
| 8305 type = Type::terror; | |
| 8306 } | |
| 8307 else | |
| 8308 { | |
| 8309 TypeAArray *ta = (TypeAArray *)t2b; | |
| 8310 | |
| 8311 // Convert key to type of key | |
| 8312 e1 = e1->implicitCastTo(sc, ta->index); | |
| 8313 | |
| 8314 // Return type is pointer to value | |
| 8315 type = ta->next->pointerTo(); | |
| 8316 } | |
| 8317 return this; | |
| 8318 } | |
| 8319 | |
| 8320 int InExp::isBit() | |
| 8321 { | |
| 8322 return FALSE; | |
| 8323 } | |
| 8324 | |
| 8325 | |
| 8326 /************************************************************/ | |
| 8327 | |
| 8328 /* This deletes the key e1 from the associative array e2 | |
| 8329 */ | |
| 8330 | |
| 8331 RemoveExp::RemoveExp(Loc loc, Expression *e1, Expression *e2) | |
| 8332 : BinExp(loc, TOKremove, sizeof(RemoveExp), e1, e2) | |
| 8333 { | |
| 8334 type = Type::tvoid; | |
| 8335 } | |
| 8336 | |
| 8337 /************************************************************/ | |
| 8338 | |
| 8339 CmpExp::CmpExp(enum TOK op, Loc loc, Expression *e1, Expression *e2) | |
| 8340 : BinExp(loc, op, sizeof(CmpExp), e1, e2) | |
| 8341 { | |
| 8342 } | |
| 8343 | |
| 8344 Expression *CmpExp::semantic(Scope *sc) | |
| 8345 { Expression *e; | |
| 8346 Type *t1; | |
| 8347 Type *t2; | |
| 8348 | |
| 8349 #if LOGSEMANTIC | |
| 8350 printf("CmpExp::semantic('%s')\n", toChars()); | |
| 8351 #endif | |
| 8352 if (type) | |
| 8353 return this; | |
| 8354 | |
| 8355 BinExp::semanticp(sc); | |
| 8356 | |
| 8357 if (e1->type->toBasetype()->ty == Tclass && e2->op == TOKnull || | |
| 8358 e2->type->toBasetype()->ty == Tclass && e1->op == TOKnull) | |
| 8359 { | |
| 8360 error("do not use null when comparing class types"); | |
| 8361 } | |
| 8362 | |
| 8363 e = op_overload(sc); | |
| 8364 if (e) | |
| 8365 { | |
| 8366 e = new CmpExp(op, loc, e, new IntegerExp(loc, 0, Type::tint32)); | |
| 8367 e = e->semantic(sc); | |
| 8368 return e; | |
| 8369 } | |
| 8370 | |
| 8371 typeCombine(sc); | |
| 8372 type = Type::tboolean; | |
| 8373 | |
| 8374 // Special handling for array comparisons | |
| 8375 t1 = e1->type->toBasetype(); | |
| 8376 t2 = e2->type->toBasetype(); | |
| 8377 if ((t1->ty == Tarray || t1->ty == Tsarray) && | |
| 8378 (t2->ty == Tarray || t2->ty == Tsarray)) | |
| 8379 { | |
| 8380 if (!t1->next->equals(t2->next)) | |
| 8381 error("array comparison type mismatch, %s vs %s", t1->next->toChars(), t2->next->toChars()); | |
| 8382 e = this; | |
| 8383 } | |
| 8384 else if (t1->ty == Tstruct || t2->ty == Tstruct || | |
| 8385 (t1->ty == Tclass && t2->ty == Tclass)) | |
| 8386 { | |
| 8387 if (t2->ty == Tstruct) | |
| 8388 error("need member function opCmp() for %s %s to compare", t2->toDsymbol(sc)->kind(), t2->toChars()); | |
| 8389 else | |
| 8390 error("need member function opCmp() for %s %s to compare", t1->toDsymbol(sc)->kind(), t1->toChars()); | |
| 8391 e = this; | |
| 8392 } | |
| 8393 #if 1 | |
| 8394 else if (t1->iscomplex() || t2->iscomplex()) | |
| 8395 { | |
| 8396 error("compare not defined for complex operands"); | |
| 8397 e = new IntegerExp(0); | |
| 8398 } | |
| 8399 #endif | |
| 8400 else | |
| 8401 e = this; | |
| 8402 return e; | |
| 8403 } | |
| 8404 | |
| 8405 int CmpExp::isBit() | |
| 8406 { | |
| 8407 return TRUE; | |
| 8408 } | |
| 8409 | |
| 8410 | |
| 8411 /************************************************************/ | |
| 8412 | |
| 8413 EqualExp::EqualExp(enum TOK op, Loc loc, Expression *e1, Expression *e2) | |
| 8414 : BinExp(loc, op, sizeof(EqualExp), e1, e2) | |
| 8415 { | |
| 8416 assert(op == TOKequal || op == TOKnotequal); | |
| 8417 } | |
| 8418 | |
| 8419 Expression *EqualExp::semantic(Scope *sc) | |
| 8420 { Expression *e; | |
| 8421 Type *t1; | |
| 8422 Type *t2; | |
| 8423 | |
| 8424 //printf("EqualExp::semantic('%s')\n", toChars()); | |
| 8425 if (type) | |
| 8426 return this; | |
| 8427 | |
| 8428 BinExp::semanticp(sc); | |
| 8429 | |
| 8430 /* Before checking for operator overloading, check to see if we're | |
| 8431 * comparing the addresses of two statics. If so, we can just see | |
| 8432 * if they are the same symbol. | |
| 8433 */ | |
| 8434 if (e1->op == TOKaddress && e2->op == TOKaddress) | |
| 8435 { AddrExp *ae1 = (AddrExp *)e1; | |
| 8436 AddrExp *ae2 = (AddrExp *)e2; | |
| 8437 | |
| 8438 if (ae1->e1->op == TOKvar && ae2->e1->op == TOKvar) | |
| 8439 { VarExp *ve1 = (VarExp *)ae1->e1; | |
| 8440 VarExp *ve2 = (VarExp *)ae2->e1; | |
| 8441 | |
| 8442 if (ve1->var == ve2->var /*|| ve1->var->toSymbol() == ve2->var->toSymbol()*/) | |
| 8443 { | |
| 8444 // They are the same, result is 'true' for ==, 'false' for != | |
| 8445 e = new IntegerExp(loc, (op == TOKequal), Type::tboolean); | |
| 8446 return e; | |
| 8447 } | |
| 8448 } | |
| 8449 } | |
| 8450 | |
| 8451 if (e1->type->toBasetype()->ty == Tclass && e2->op == TOKnull || | |
| 8452 e2->type->toBasetype()->ty == Tclass && e1->op == TOKnull) | |
| 8453 { | |
| 8454 error("use '%s' instead of '%s' when comparing with null", | |
| 8455 Token::toChars(op == TOKequal ? TOKidentity : TOKnotidentity), | |
| 8456 Token::toChars(op)); | |
| 8457 } | |
| 8458 | |
| 8459 //if (e2->op != TOKnull) | |
| 8460 { | |
| 8461 e = op_overload(sc); | |
| 8462 if (e) | |
| 8463 { | |
| 8464 if (op == TOKnotequal) | |
| 8465 { | |
| 8466 e = new NotExp(e->loc, e); | |
| 8467 e = e->semantic(sc); | |
| 8468 } | |
| 8469 return e; | |
| 8470 } | |
| 8471 } | |
| 8472 | |
| 8473 e = typeCombine(sc); | |
| 8474 type = Type::tboolean; | |
| 8475 | |
| 8476 // Special handling for array comparisons | |
| 8477 t1 = e1->type->toBasetype(); | |
| 8478 t2 = e2->type->toBasetype(); | |
| 8479 if ((t1->ty == Tarray || t1->ty == Tsarray) && | |
| 8480 (t2->ty == Tarray || t2->ty == Tsarray)) | |
| 8481 { | |
| 8482 if (!t1->next->equals(t2->next)) | |
| 8483 error("array comparison type mismatch, %s vs %s", t1->next->toChars(), t2->next->toChars()); | |
| 8484 } | |
| 8485 else | |
| 8486 { | |
| 8487 if (e1->type != e2->type && e1->type->isfloating() && e2->type->isfloating()) | |
| 8488 { | |
| 8489 // Cast both to complex | |
| 8490 e1 = e1->castTo(sc, Type::tcomplex80); | |
| 8491 e2 = e2->castTo(sc, Type::tcomplex80); | |
| 8492 } | |
| 8493 } | |
| 8494 return e; | |
| 8495 } | |
| 8496 | |
| 8497 int EqualExp::isBit() | |
| 8498 { | |
| 8499 return TRUE; | |
| 8500 } | |
| 8501 | |
| 8502 | |
| 8503 | |
| 8504 /************************************************************/ | |
| 8505 | |
| 8506 IdentityExp::IdentityExp(enum TOK op, Loc loc, Expression *e1, Expression *e2) | |
| 8507 : BinExp(loc, op, sizeof(IdentityExp), e1, e2) | |
| 8508 { | |
| 8509 } | |
| 8510 | |
| 8511 Expression *IdentityExp::semantic(Scope *sc) | |
| 8512 { | |
| 8513 if (type) | |
| 8514 return this; | |
| 8515 | |
| 8516 BinExp::semanticp(sc); | |
| 8517 type = Type::tboolean; | |
| 8518 typeCombine(sc); | |
| 8519 if (e1->type != e2->type && e1->type->isfloating() && e2->type->isfloating()) | |
| 8520 { | |
| 8521 // Cast both to complex | |
| 8522 e1 = e1->castTo(sc, Type::tcomplex80); | |
| 8523 e2 = e2->castTo(sc, Type::tcomplex80); | |
| 8524 } | |
| 8525 return this; | |
| 8526 } | |
| 8527 | |
| 8528 int IdentityExp::isBit() | |
| 8529 { | |
| 8530 return TRUE; | |
| 8531 } | |
| 8532 | |
| 8533 | |
| 8534 /****************************************************************/ | |
| 8535 | |
| 8536 CondExp::CondExp(Loc loc, Expression *econd, Expression *e1, Expression *e2) | |
| 8537 : BinExp(loc, TOKquestion, sizeof(CondExp), e1, e2) | |
| 8538 { | |
| 8539 this->econd = econd; | |
| 8540 } | |
| 8541 | |
| 8542 Expression *CondExp::syntaxCopy() | |
| 8543 { | |
| 8544 return new CondExp(loc, econd->syntaxCopy(), e1->syntaxCopy(), e2->syntaxCopy()); | |
| 8545 } | |
| 8546 | |
| 8547 | |
| 8548 Expression *CondExp::semantic(Scope *sc) | |
| 8549 { Type *t1; | |
| 8550 Type *t2; | |
| 8551 unsigned cs0; | |
| 8552 unsigned cs1; | |
| 8553 | |
| 8554 #if LOGSEMANTIC | |
| 8555 printf("CondExp::semantic('%s')\n", toChars()); | |
| 8556 #endif | |
| 8557 if (type) | |
| 8558 return this; | |
| 8559 | |
| 8560 econd = econd->semantic(sc); | |
| 8561 econd = resolveProperties(sc, econd); | |
| 8562 econd = econd->checkToPointer(); | |
| 8563 econd = econd->checkToBoolean(); | |
| 8564 | |
| 8565 #if 0 /* this cannot work right because the types of e1 and e2 | |
| 8566 * both contribute to the type of the result. | |
| 8567 */ | |
| 8568 if (sc->flags & SCOPEstaticif) | |
| 8569 { | |
| 8570 /* If in static if, don't evaluate what we don't have to. | |
| 8571 */ | |
| 8572 econd = econd->optimize(WANTflags); | |
| 8573 if (econd->isBool(TRUE)) | |
| 8574 { | |
| 8575 e1 = e1->semantic(sc); | |
| 8576 e1 = resolveProperties(sc, e1); | |
| 8577 return e1; | |
| 8578 } | |
| 8579 else if (econd->isBool(FALSE)) | |
| 8580 { | |
| 8581 e2 = e2->semantic(sc); | |
| 8582 e2 = resolveProperties(sc, e2); | |
| 8583 return e2; | |
| 8584 } | |
| 8585 } | |
| 8586 #endif | |
| 8587 | |
| 8588 | |
| 8589 cs0 = sc->callSuper; | |
| 8590 e1 = e1->semantic(sc); | |
| 8591 e1 = resolveProperties(sc, e1); | |
| 8592 cs1 = sc->callSuper; | |
| 8593 sc->callSuper = cs0; | |
| 8594 e2 = e2->semantic(sc); | |
| 8595 e2 = resolveProperties(sc, e2); | |
| 8596 sc->mergeCallSuper(loc, cs1); | |
| 8597 | |
| 8598 | |
| 8599 // If either operand is void, the result is void | |
| 8600 t1 = e1->type; | |
| 8601 t2 = e2->type; | |
| 8602 if (t1->ty == Tvoid || t2->ty == Tvoid) | |
| 8603 type = Type::tvoid; | |
| 8604 else if (t1 == t2) | |
| 8605 type = t1; | |
| 8606 else | |
| 8607 { | |
| 8608 typeCombine(sc); | |
| 8609 switch (e1->type->toBasetype()->ty) | |
| 8610 { | |
| 8611 case Tcomplex32: | |
| 8612 case Tcomplex64: | |
| 8613 case Tcomplex80: | |
| 8614 e2 = e2->castTo(sc, e1->type); | |
| 8615 break; | |
| 8616 } | |
| 8617 switch (e2->type->toBasetype()->ty) | |
| 8618 { | |
| 8619 case Tcomplex32: | |
| 8620 case Tcomplex64: | |
| 8621 case Tcomplex80: | |
| 8622 e1 = e1->castTo(sc, e2->type); | |
| 8623 break; | |
| 8624 } | |
| 8625 } | |
| 8626 return this; | |
| 8627 } | |
| 8628 | |
| 8629 Expression *CondExp::toLvalue(Scope *sc, Expression *ex) | |
| 8630 { | |
| 8631 PtrExp *e; | |
| 8632 | |
| 8633 // convert (econd ? e1 : e2) to *(econd ? &e1 : &e2) | |
| 8634 e = new PtrExp(loc, this, type); | |
| 8635 | |
| 8636 e1 = e1->addressOf(sc); | |
| 8637 //e1 = e1->toLvalue(sc, NULL); | |
| 8638 | |
| 8639 e2 = e2->addressOf(sc); | |
| 8640 //e2 = e2->toLvalue(sc, NULL); | |
| 8641 | |
| 8642 typeCombine(sc); | |
| 8643 | |
| 8644 type = e2->type; | |
| 8645 return e; | |
| 8646 } | |
| 8647 | |
| 8648 Expression *CondExp::modifiableLvalue(Scope *sc, Expression *e) | |
| 8649 { | |
| 8650 error("conditional expression %s is not a modifiable lvalue", toChars()); | |
| 8651 return this; | |
| 8652 } | |
| 8653 | |
| 8654 void CondExp::checkEscape() | |
| 8655 { | |
| 8656 e1->checkEscape(); | |
| 8657 e2->checkEscape(); | |
| 8658 } | |
| 8659 | |
| 8660 | |
| 8661 Expression *CondExp::checkToBoolean() | |
| 8662 { | |
| 8663 e1 = e1->checkToBoolean(); | |
| 8664 e2 = e2->checkToBoolean(); | |
| 8665 return this; | |
| 8666 } | |
| 8667 | |
| 8668 int CondExp::checkSideEffect(int flag) | |
| 8669 { | |
| 8670 if (flag == 2) | |
| 8671 { | |
| 8672 return econd->checkSideEffect(2) || | |
| 8673 e1->checkSideEffect(2) || | |
| 8674 e2->checkSideEffect(2); | |
| 8675 } | |
| 8676 else | |
| 8677 { | |
| 8678 econd->checkSideEffect(1); | |
| 8679 e1->checkSideEffect(flag); | |
| 8680 return e2->checkSideEffect(flag); | |
| 8681 } | |
| 8682 } | |
| 8683 | |
| 8684 void CondExp::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 8685 { | |
| 8686 expToCBuffer(buf, hgs, econd, PREC_oror); | |
| 8687 buf->writestring(" ? "); | |
| 8688 expToCBuffer(buf, hgs, e1, PREC_expr); | |
| 8689 buf->writestring(" : "); | |
| 8690 expToCBuffer(buf, hgs, e2, PREC_cond); | |
| 8691 } | |
| 8692 | |
| 8693 |