Mercurial > projects > ldc
annotate dmd/statement.c @ 1103:b30fe7e1dbb9
- Updated to DMD frontend 1.041.
- Removed dmd/inifile.c , it's not under a free license, replaced with libconfig based config file.
| author | Tomas Lindquist Olsen <tomas.l.olsen gmail.com> |
|---|---|
| date | Thu, 12 Mar 2009 20:37:27 +0100 |
| parents | 03d7c4aac654 |
| children | e7f0c2b48047 |
| rev | line source |
|---|---|
| 159 | 1 |
| 2 // Compiler implementation of the D programming language | |
|
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3 // Copyright (c) 1999-2009 by Digital Mars |
| 159 | 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 <assert.h> | |
| 14 | |
|
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15 #include "rmem.h" |
| 159 | 16 |
| 17 #include "statement.h" | |
| 18 #include "expression.h" | |
| 19 #include "cond.h" | |
| 20 #include "init.h" | |
| 21 #include "staticassert.h" | |
| 22 #include "mtype.h" | |
| 23 #include "scope.h" | |
| 24 #include "declaration.h" | |
| 25 #include "aggregate.h" | |
| 26 #include "id.h" | |
| 27 #include "hdrgen.h" | |
| 28 #include "parse.h" | |
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29 #include "template.h" |
| 159 | 30 |
| 31 /******************************** Statement ***************************/ | |
| 32 | |
| 33 Statement::Statement(Loc loc) | |
| 34 : loc(loc) | |
| 35 { | |
| 36 #ifdef _DH | |
| 37 // If this is an in{} contract scope statement (skip for determining | |
| 38 // inlineStatus of a function body for header content) | |
| 39 incontract = 0; | |
| 40 #endif | |
| 41 } | |
| 42 | |
| 43 Statement *Statement::syntaxCopy() | |
| 44 { | |
| 45 assert(0); | |
| 46 return NULL; | |
| 47 } | |
| 48 | |
| 49 void Statement::print() | |
| 50 { | |
| 51 fprintf(stdmsg, "%s\n", toChars()); | |
| 52 fflush(stdmsg); | |
| 53 } | |
| 54 | |
| 55 char *Statement::toChars() | |
| 56 { OutBuffer *buf; | |
| 57 HdrGenState hgs; | |
| 58 | |
| 59 buf = new OutBuffer(); | |
| 60 toCBuffer(buf, &hgs); | |
| 61 return buf->toChars(); | |
| 62 } | |
| 63 | |
| 64 void Statement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 65 { | |
| 66 buf->printf("Statement::toCBuffer()"); | |
| 67 buf->writenl(); | |
| 68 } | |
| 69 | |
| 70 Statement *Statement::semantic(Scope *sc) | |
| 71 { | |
| 72 return this; | |
| 73 } | |
| 74 | |
| 75 // Same as semantic(), but do create a new scope | |
| 76 | |
| 77 Statement *Statement::semanticScope(Scope *sc, Statement *sbreak, Statement *scontinue) | |
| 78 { Scope *scd; | |
| 79 Statement *s; | |
| 80 | |
| 81 scd = sc->push(); | |
| 82 if (sbreak) | |
| 83 scd->sbreak = sbreak; | |
| 84 if (scontinue) | |
| 85 scd->scontinue = scontinue; | |
| 86 s = semantic(scd); | |
| 87 scd->pop(); | |
| 88 return s; | |
| 89 } | |
| 90 | |
| 91 void Statement::error(const char *format, ...) | |
| 92 { | |
| 93 va_list ap; | |
| 94 va_start(ap, format); | |
| 95 ::verror(loc, format, ap); | |
| 96 va_end( ap ); | |
| 97 } | |
| 98 | |
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99 void Statement::warning(const char *format, ...) |
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100 { |
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101 if (global.params.warnings && !global.gag) |
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102 { |
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103 fprintf(stdmsg, "warning - "); |
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104 va_list ap; |
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105 va_start(ap, format); |
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106 ::verror(loc, format, ap); |
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107 va_end( ap ); |
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108 } |
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parents:
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109 } |
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parents:
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110 |
| 159 | 111 int Statement::hasBreak() |
| 112 { | |
| 113 //printf("Statement::hasBreak()\n"); | |
| 114 return FALSE; | |
| 115 } | |
| 116 | |
| 117 int Statement::hasContinue() | |
| 118 { | |
| 119 return FALSE; | |
| 120 } | |
| 121 | |
| 122 // TRUE if statement uses exception handling | |
| 123 | |
| 124 int Statement::usesEH() | |
| 125 { | |
| 126 return FALSE; | |
| 127 } | |
| 128 | |
| 336 | 129 /* Only valid after semantic analysis |
| 130 */ | |
| 131 int Statement::blockExit() | |
| 132 { | |
| 133 printf("Statement::blockExit(%p)\n", this); | |
| 134 printf("%s\n", toChars()); | |
| 135 assert(0); | |
| 136 return BEany; | |
| 137 } | |
| 138 | |
| 159 | 139 // TRUE if statement 'comes from' somewhere else, like a goto |
| 140 | |
| 141 int Statement::comeFrom() | |
| 142 { | |
| 143 //printf("Statement::comeFrom()\n"); | |
| 144 return FALSE; | |
| 145 } | |
| 146 | |
| 147 /**************************************** | |
| 148 * If this statement has code that needs to run in a finally clause | |
| 149 * at the end of the current scope, return that code in the form of | |
| 150 * a Statement. | |
| 151 * Output: | |
| 152 * *sentry code executed upon entry to the scope | |
| 153 * *sexception code executed upon exit from the scope via exception | |
| 154 * *sfinally code executed in finally block | |
| 155 */ | |
| 156 | |
| 157 void Statement::scopeCode(Statement **sentry, Statement **sexception, Statement **sfinally) | |
| 158 { | |
| 159 //printf("Statement::scopeCode()\n"); | |
| 160 //print(); | |
| 161 *sentry = NULL; | |
| 162 *sexception = NULL; | |
| 163 *sfinally = NULL; | |
| 164 } | |
| 165 | |
| 166 /********************************* | |
| 167 * Flatten out the scope by presenting the statement | |
| 168 * as an array of statements. | |
| 169 * Returns NULL if no flattening necessary. | |
| 170 */ | |
| 171 | |
| 172 Statements *Statement::flatten(Scope *sc) | |
| 173 { | |
| 174 return NULL; | |
| 175 } | |
| 176 | |
| 177 | |
| 178 /******************************** ExpStatement ***************************/ | |
| 179 | |
| 180 ExpStatement::ExpStatement(Loc loc, Expression *exp) | |
| 181 : Statement(loc) | |
| 182 { | |
| 183 this->exp = exp; | |
| 184 } | |
| 185 | |
| 186 Statement *ExpStatement::syntaxCopy() | |
| 187 { | |
| 188 Expression *e = exp ? exp->syntaxCopy() : NULL; | |
| 189 ExpStatement *es = new ExpStatement(loc, e); | |
| 190 return es; | |
| 191 } | |
| 192 | |
| 193 void ExpStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 194 { | |
| 195 if (exp) | |
| 196 exp->toCBuffer(buf, hgs); | |
| 197 buf->writeByte(';'); | |
| 198 if (!hgs->FLinit.init) | |
| 199 buf->writenl(); | |
| 200 } | |
| 201 | |
| 202 Statement *ExpStatement::semantic(Scope *sc) | |
| 203 { | |
| 204 if (exp) | |
| 205 { | |
| 206 //printf("ExpStatement::semantic() %s\n", exp->toChars()); | |
| 207 exp = exp->semantic(sc); | |
| 208 exp = resolveProperties(sc, exp); | |
| 209 exp->checkSideEffect(0); | |
| 210 exp = exp->optimize(0); | |
| 211 //exp = exp->optimize(isDeclarationStatement() ? WANTvalue : 0); | |
| 212 } | |
| 213 return this; | |
| 214 } | |
| 215 | |
| 336 | 216 int ExpStatement::blockExit() |
| 217 { int result = BEfallthru; | |
| 218 | |
| 219 if (exp) | |
| 220 { | |
| 221 if (exp->op == TOKhalt) | |
| 222 return BEhalt; | |
| 223 if (exp->op == TOKassert) | |
| 224 { AssertExp *a = (AssertExp *)exp; | |
| 225 | |
| 226 if (a->e1->isBool(FALSE)) // if it's an assert(0) | |
| 227 return BEhalt; | |
| 228 } | |
| 229 if (exp->canThrow()) | |
| 230 result |= BEthrow; | |
| 231 } | |
| 232 return result; | |
| 233 } | |
| 234 | |
| 159 | 235 |
| 236 /******************************** CompileStatement ***************************/ | |
| 237 | |
| 238 CompileStatement::CompileStatement(Loc loc, Expression *exp) | |
| 239 : Statement(loc) | |
| 240 { | |
| 241 this->exp = exp; | |
| 242 } | |
| 243 | |
| 244 Statement *CompileStatement::syntaxCopy() | |
| 245 { | |
| 246 Expression *e = exp->syntaxCopy(); | |
| 247 CompileStatement *es = new CompileStatement(loc, e); | |
| 248 return es; | |
| 249 } | |
| 250 | |
| 251 void CompileStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 252 { | |
| 253 buf->writestring("mixin("); | |
| 254 exp->toCBuffer(buf, hgs); | |
| 255 buf->writestring(");"); | |
| 256 if (!hgs->FLinit.init) | |
| 257 buf->writenl(); | |
| 258 } | |
| 259 | |
| 336 | 260 Statements *CompileStatement::flatten(Scope *sc) |
| 159 | 261 { |
| 336 | 262 //printf("CompileStatement::flatten() %s\n", exp->toChars()); |
| 159 | 263 exp = exp->semantic(sc); |
| 264 exp = resolveProperties(sc, exp); | |
| 265 exp = exp->optimize(WANTvalue | WANTinterpret); | |
| 266 if (exp->op != TOKstring) | |
| 267 { error("argument to mixin must be a string, not (%s)", exp->toChars()); | |
| 336 | 268 return NULL; |
| 159 | 269 } |
| 270 StringExp *se = (StringExp *)exp; | |
| 271 se = se->toUTF8(sc); | |
| 272 Parser p(sc->module, (unsigned char *)se->string, se->len, 0); | |
| 273 p.loc = loc; | |
| 274 p.nextToken(); | |
| 275 | |
| 336 | 276 Statements *a = new Statements(); |
| 159 | 277 while (p.token.value != TOKeof) |
| 278 { | |
| 279 Statement *s = p.parseStatement(PSsemi | PScurlyscope); | |
| 336 | 280 a->push(s); |
| 159 | 281 } |
| 336 | 282 return a; |
| 283 } | |
| 284 | |
| 285 Statement *CompileStatement::semantic(Scope *sc) | |
| 286 { | |
| 287 //printf("CompileStatement::semantic() %s\n", exp->toChars()); | |
| 288 Statements *a = flatten(sc); | |
| 289 if (!a) | |
| 290 return NULL; | |
| 291 Statement *s = new CompoundStatement(loc, a); | |
| 159 | 292 return s->semantic(sc); |
| 293 } | |
| 294 | |
| 295 | |
| 296 /******************************** DeclarationStatement ***************************/ | |
| 297 | |
| 298 DeclarationStatement::DeclarationStatement(Loc loc, Dsymbol *declaration) | |
| 299 : ExpStatement(loc, new DeclarationExp(loc, declaration)) | |
| 300 { | |
| 301 } | |
| 302 | |
| 303 DeclarationStatement::DeclarationStatement(Loc loc, Expression *exp) | |
| 304 : ExpStatement(loc, exp) | |
| 305 { | |
| 306 } | |
| 307 | |
| 308 Statement *DeclarationStatement::syntaxCopy() | |
| 309 { | |
| 310 DeclarationStatement *ds = new DeclarationStatement(loc, exp->syntaxCopy()); | |
| 311 return ds; | |
| 312 } | |
| 313 | |
| 314 void DeclarationStatement::scopeCode(Statement **sentry, Statement **sexception, Statement **sfinally) | |
| 315 { | |
| 316 //printf("DeclarationStatement::scopeCode()\n"); | |
| 317 //print(); | |
| 318 | |
| 319 *sentry = NULL; | |
| 320 *sexception = NULL; | |
| 321 *sfinally = NULL; | |
| 322 | |
| 323 if (exp) | |
| 324 { | |
| 325 if (exp->op == TOKdeclaration) | |
| 326 { | |
| 327 DeclarationExp *de = (DeclarationExp *)(exp); | |
| 328 VarDeclaration *v = de->declaration->isVarDeclaration(); | |
| 329 if (v) | |
| 330 { Expression *e; | |
| 331 | |
| 332 e = v->callAutoDtor(); | |
| 333 if (e) | |
| 334 { | |
| 335 //printf("dtor is: "); e->print(); | |
| 336 *sfinally = new ExpStatement(loc, e); | |
| 337 } | |
| 338 } | |
| 339 } | |
| 340 } | |
| 341 } | |
| 342 | |
| 343 void DeclarationStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 344 { | |
| 345 exp->toCBuffer(buf, hgs); | |
| 346 } | |
| 347 | |
| 348 | |
| 349 /******************************** CompoundStatement ***************************/ | |
| 350 | |
| 351 CompoundStatement::CompoundStatement(Loc loc, Statements *s) | |
| 352 : Statement(loc) | |
| 353 { | |
| 354 statements = s; | |
| 355 } | |
| 356 | |
| 357 CompoundStatement::CompoundStatement(Loc loc, Statement *s1, Statement *s2) | |
| 358 : Statement(loc) | |
| 359 { | |
| 360 statements = new Statements(); | |
| 361 statements->reserve(2); | |
| 362 statements->push(s1); | |
| 363 statements->push(s2); | |
| 364 } | |
| 365 | |
| 366 Statement *CompoundStatement::syntaxCopy() | |
| 367 { | |
| 368 Statements *a = new Statements(); | |
| 369 a->setDim(statements->dim); | |
| 370 for (size_t i = 0; i < statements->dim; i++) | |
| 371 { Statement *s = (Statement *)statements->data[i]; | |
| 372 if (s) | |
| 373 s = s->syntaxCopy(); | |
| 374 a->data[i] = s; | |
| 375 } | |
| 376 CompoundStatement *cs = new CompoundStatement(loc, a); | |
| 377 return cs; | |
| 378 } | |
| 379 | |
| 380 | |
| 381 Statement *CompoundStatement::semantic(Scope *sc) | |
| 382 { Statement *s; | |
| 383 | |
| 384 //printf("CompoundStatement::semantic(this = %p, sc = %p)\n", this, sc); | |
| 385 | |
| 386 for (size_t i = 0; i < statements->dim; ) | |
| 387 { | |
| 388 s = (Statement *) statements->data[i]; | |
| 389 if (s) | |
| 390 { Statements *a = s->flatten(sc); | |
| 391 | |
| 392 if (a) | |
| 393 { | |
| 394 statements->remove(i); | |
| 395 statements->insert(i, a); | |
| 396 continue; | |
| 397 } | |
| 398 s = s->semantic(sc); | |
| 399 statements->data[i] = s; | |
| 400 if (s) | |
| 401 { | |
| 402 Statement *sentry; | |
| 403 Statement *sexception; | |
| 404 Statement *sfinally; | |
| 405 | |
| 406 s->scopeCode(&sentry, &sexception, &sfinally); | |
| 407 if (sentry) | |
| 408 { | |
| 409 sentry = sentry->semantic(sc); | |
| 410 statements->data[i] = sentry; | |
| 411 } | |
| 412 if (sexception) | |
| 413 { | |
| 414 if (i + 1 == statements->dim && !sfinally) | |
| 415 { | |
| 416 #if 1 | |
| 417 sexception = sexception->semantic(sc); | |
| 418 #else | |
| 419 statements->push(sexception); | |
| 420 if (sfinally) | |
| 421 // Assume sexception does not throw | |
| 422 statements->push(sfinally); | |
| 423 #endif | |
| 424 } | |
| 425 else | |
| 426 { | |
| 427 /* Rewrite: | |
| 428 * s; s1; s2; | |
| 429 * As: | |
| 430 * s; | |
| 431 * try { s1; s2; } | |
| 432 * catch (Object __o) | |
| 433 * { sexception; throw __o; } | |
| 434 */ | |
| 435 Statement *body; | |
| 436 Statements *a = new Statements(); | |
| 437 | |
| 438 for (int j = i + 1; j < statements->dim; j++) | |
| 439 { | |
| 440 a->push(statements->data[j]); | |
| 441 } | |
| 442 body = new CompoundStatement(0, a); | |
| 443 body = new ScopeStatement(0, body); | |
| 444 | |
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parents:
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diff
changeset
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445 Identifier *id = Lexer::uniqueId("__o"); |
| 159 | 446 |
| 447 Statement *handler = new ThrowStatement(0, new IdentifierExp(0, id)); | |
| 448 handler = new CompoundStatement(0, sexception, handler); | |
| 449 | |
| 450 Array *catches = new Array(); | |
| 451 Catch *ctch = new Catch(0, NULL, id, handler); | |
| 452 catches->push(ctch); | |
| 453 s = new TryCatchStatement(0, body, catches); | |
| 454 | |
| 455 if (sfinally) | |
| 456 s = new TryFinallyStatement(0, s, sfinally); | |
| 457 s = s->semantic(sc); | |
| 458 statements->setDim(i + 1); | |
| 459 statements->push(s); | |
| 460 break; | |
| 461 } | |
| 462 } | |
| 463 else if (sfinally) | |
| 464 { | |
| 465 if (0 && i + 1 == statements->dim) | |
| 466 { | |
| 467 statements->push(sfinally); | |
| 468 } | |
| 469 else | |
| 470 { | |
| 471 /* Rewrite: | |
| 472 * s; s1; s2; | |
| 473 * As: | |
| 474 * s; try { s1; s2; } finally { sfinally; } | |
| 475 */ | |
| 476 Statement *body; | |
| 477 Statements *a = new Statements(); | |
| 478 | |
| 479 for (int j = i + 1; j < statements->dim; j++) | |
| 480 { | |
| 481 a->push(statements->data[j]); | |
| 482 } | |
| 483 body = new CompoundStatement(0, a); | |
| 484 s = new TryFinallyStatement(0, body, sfinally); | |
| 485 s = s->semantic(sc); | |
| 486 statements->setDim(i + 1); | |
| 487 statements->push(s); | |
| 488 break; | |
| 489 } | |
| 490 } | |
| 491 } | |
| 492 } | |
| 493 i++; | |
| 494 } | |
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495 if (statements->dim == 1 && !isAsmBlockStatement()) |
| 336 | 496 { |
| 497 return (Statement *)statements->data[0]; | |
| 498 } | |
| 159 | 499 return this; |
| 500 } | |
| 501 | |
| 502 Statements *CompoundStatement::flatten(Scope *sc) | |
| 503 { | |
| 504 return statements; | |
| 505 } | |
| 506 | |
| 507 ReturnStatement *CompoundStatement::isReturnStatement() | |
| 336 | 508 { |
| 159 | 509 ReturnStatement *rs = NULL; |
| 510 | |
| 336 | 511 for (int i = 0; i < statements->dim; i++) |
| 512 { Statement *s = (Statement *) statements->data[i]; | |
| 159 | 513 if (s) |
| 514 { | |
| 515 rs = s->isReturnStatement(); | |
| 516 if (rs) | |
| 517 break; | |
| 518 } | |
| 519 } | |
| 520 return rs; | |
| 521 } | |
| 522 | |
| 523 void CompoundStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 336 | 524 { |
| 525 for (int i = 0; i < statements->dim; i++) | |
| 526 { Statement *s = (Statement *) statements->data[i]; | |
| 159 | 527 if (s) |
| 528 s->toCBuffer(buf, hgs); | |
| 529 } | |
| 530 } | |
| 531 | |
| 532 int CompoundStatement::usesEH() | |
| 533 { | |
| 534 for (int i = 0; i < statements->dim; i++) | |
| 336 | 535 { Statement *s = (Statement *) statements->data[i]; |
| 159 | 536 if (s && s->usesEH()) |
| 537 return TRUE; | |
| 538 } | |
| 539 return FALSE; | |
| 540 } | |
| 541 | |
| 336 | 542 int CompoundStatement::blockExit() |
| 543 { | |
| 544 //printf("CompoundStatement::blockExit(%p) %d\n", this, statements->dim); | |
| 545 int result = BEfallthru; | |
| 546 for (size_t i = 0; i < statements->dim; i++) | |
| 547 { Statement *s = (Statement *) statements->data[i]; | |
| 548 if (s) | |
| 549 { | |
| 550 //printf("result = x%x\n", result); | |
| 551 //printf("%s\n", s->toChars()); | |
| 552 if (!(result & BEfallthru) && !s->comeFrom()) | |
| 553 { | |
|
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diff
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554 s->warning("statement is not reachable"); |
| 336 | 555 } |
| 556 | |
| 557 result &= ~BEfallthru; | |
| 558 result |= s->blockExit(); | |
| 559 } | |
| 560 } | |
| 561 return result; | |
| 562 } | |
| 563 | |
| 159 | 564 int CompoundStatement::comeFrom() |
| 565 { int comefrom = FALSE; | |
| 566 | |
| 567 //printf("CompoundStatement::comeFrom()\n"); | |
| 568 for (int i = 0; i < statements->dim; i++) | |
| 569 { Statement *s = (Statement *)statements->data[i]; | |
| 570 | |
| 571 if (!s) | |
| 572 continue; | |
| 573 | |
| 574 comefrom |= s->comeFrom(); | |
| 575 } | |
| 576 return comefrom; | |
| 577 } | |
| 578 | |
| 579 | |
| 580 /**************************** UnrolledLoopStatement ***************************/ | |
| 581 | |
| 582 UnrolledLoopStatement::UnrolledLoopStatement(Loc loc, Statements *s) | |
| 583 : Statement(loc) | |
| 584 { | |
| 585 statements = s; | |
| 309 | 586 enclosinghandler = NULL; |
| 159 | 587 } |
| 588 | |
| 589 Statement *UnrolledLoopStatement::syntaxCopy() | |
| 590 { | |
| 591 Statements *a = new Statements(); | |
| 592 a->setDim(statements->dim); | |
| 593 for (size_t i = 0; i < statements->dim; i++) | |
| 594 { Statement *s = (Statement *)statements->data[i]; | |
| 595 if (s) | |
| 596 s = s->syntaxCopy(); | |
| 597 a->data[i] = s; | |
| 598 } | |
| 599 UnrolledLoopStatement *cs = new UnrolledLoopStatement(loc, a); | |
| 600 return cs; | |
| 601 } | |
| 602 | |
| 603 | |
| 604 Statement *UnrolledLoopStatement::semantic(Scope *sc) | |
| 605 { | |
| 606 //printf("UnrolledLoopStatement::semantic(this = %p, sc = %p)\n", this, sc); | |
| 607 | |
| 309 | 608 enclosinghandler = sc->tfOfTry; |
| 159 | 609 |
| 610 sc->noctor++; | |
| 611 Scope *scd = sc->push(); | |
| 612 scd->sbreak = this; | |
| 613 scd->scontinue = this; | |
| 614 | |
| 615 for (size_t i = 0; i < statements->dim; i++) | |
| 616 { | |
| 617 Statement *s = (Statement *) statements->data[i]; | |
| 618 if (s) | |
| 619 { | |
| 620 s = s->semantic(scd); | |
| 621 statements->data[i] = s; | |
| 622 } | |
| 623 } | |
| 624 | |
| 625 scd->pop(); | |
| 626 sc->noctor--; | |
| 627 return this; | |
| 628 } | |
| 629 | |
| 630 void UnrolledLoopStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 631 { | |
| 632 buf->writestring("unrolled {"); | |
| 633 buf->writenl(); | |
| 634 | |
| 635 for (size_t i = 0; i < statements->dim; i++) | |
| 636 { Statement *s; | |
| 637 | |
| 638 s = (Statement *) statements->data[i]; | |
| 639 if (s) | |
| 640 s->toCBuffer(buf, hgs); | |
| 641 } | |
| 642 | |
| 643 buf->writeByte('}'); | |
| 644 buf->writenl(); | |
| 645 } | |
| 646 | |
| 647 int UnrolledLoopStatement::hasBreak() | |
| 648 { | |
| 649 return TRUE; | |
| 650 } | |
| 651 | |
| 652 int UnrolledLoopStatement::hasContinue() | |
| 653 { | |
| 654 return TRUE; | |
| 655 } | |
| 656 | |
| 657 int UnrolledLoopStatement::usesEH() | |
| 658 { | |
| 659 for (size_t i = 0; i < statements->dim; i++) | |
| 336 | 660 { Statement *s = (Statement *) statements->data[i]; |
| 159 | 661 if (s && s->usesEH()) |
| 662 return TRUE; | |
| 663 } | |
| 664 return FALSE; | |
| 665 } | |
| 666 | |
| 336 | 667 int UnrolledLoopStatement::blockExit() |
| 668 { | |
| 669 int result = BEfallthru; | |
| 670 for (size_t i = 0; i < statements->dim; i++) | |
| 671 { Statement *s = (Statement *) statements->data[i]; | |
| 672 if (s) | |
| 673 { | |
| 674 int r = s->blockExit(); | |
| 675 result |= r & ~(BEbreak | BEcontinue); | |
| 676 } | |
| 677 } | |
| 678 return result; | |
| 679 } | |
| 680 | |
| 159 | 681 int UnrolledLoopStatement::comeFrom() |
| 682 { int comefrom = FALSE; | |
| 683 | |
| 684 //printf("UnrolledLoopStatement::comeFrom()\n"); | |
| 685 for (size_t i = 0; i < statements->dim; i++) | |
| 686 { Statement *s = (Statement *)statements->data[i]; | |
| 687 | |
| 688 if (!s) | |
| 689 continue; | |
| 690 | |
| 691 comefrom |= s->comeFrom(); | |
| 692 } | |
| 693 return comefrom; | |
| 694 } | |
| 695 | |
| 696 | |
| 697 /******************************** ScopeStatement ***************************/ | |
| 698 | |
| 699 ScopeStatement::ScopeStatement(Loc loc, Statement *s) | |
| 700 : Statement(loc) | |
| 701 { | |
| 702 this->statement = s; | |
| 703 } | |
| 704 | |
| 705 Statement *ScopeStatement::syntaxCopy() | |
| 706 { | |
| 707 Statement *s; | |
| 708 | |
| 709 s = statement ? statement->syntaxCopy() : NULL; | |
| 710 s = new ScopeStatement(loc, s); | |
| 711 return s; | |
| 712 } | |
| 713 | |
| 714 | |
| 715 Statement *ScopeStatement::semantic(Scope *sc) | |
| 716 { ScopeDsymbol *sym; | |
| 717 | |
| 718 //printf("ScopeStatement::semantic(sc = %p)\n", sc); | |
| 719 if (statement) | |
| 720 { Statements *a; | |
| 721 | |
| 722 sym = new ScopeDsymbol(); | |
| 723 sym->parent = sc->scopesym; | |
| 724 sc = sc->push(sym); | |
| 725 | |
| 726 a = statement->flatten(sc); | |
| 727 if (a) | |
| 728 { | |
| 729 statement = new CompoundStatement(loc, a); | |
| 730 } | |
| 731 | |
| 732 statement = statement->semantic(sc); | |
| 733 if (statement) | |
| 734 { | |
| 735 Statement *sentry; | |
| 736 Statement *sexception; | |
| 737 Statement *sfinally; | |
| 738 | |
| 739 statement->scopeCode(&sentry, &sexception, &sfinally); | |
| 740 if (sfinally) | |
| 741 { | |
| 742 //printf("adding sfinally\n"); | |
| 743 statement = new CompoundStatement(loc, statement, sfinally); | |
| 744 } | |
| 745 } | |
| 746 | |
| 747 sc->pop(); | |
| 748 } | |
| 749 return this; | |
| 750 } | |
| 751 | |
| 752 int ScopeStatement::hasBreak() | |
| 753 { | |
| 754 //printf("ScopeStatement::hasBreak() %s\n", toChars()); | |
| 755 return statement ? statement->hasBreak() : FALSE; | |
| 756 } | |
| 757 | |
| 758 int ScopeStatement::hasContinue() | |
| 759 { | |
| 760 return statement ? statement->hasContinue() : FALSE; | |
| 761 } | |
| 762 | |
| 763 int ScopeStatement::usesEH() | |
| 764 { | |
| 765 return statement ? statement->usesEH() : FALSE; | |
| 766 } | |
| 767 | |
| 336 | 768 int ScopeStatement::blockExit() |
| 769 { | |
| 770 //printf("ScopeStatement::blockExit(%p)\n", statement); | |
| 771 return statement ? statement->blockExit() : BEfallthru; | |
| 772 } | |
| 773 | |
| 159 | 774 int ScopeStatement::comeFrom() |
| 775 { | |
| 776 //printf("ScopeStatement::comeFrom()\n"); | |
| 777 return statement ? statement->comeFrom() : FALSE; | |
| 778 } | |
| 779 | |
| 780 void ScopeStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 781 { | |
| 782 buf->writeByte('{'); | |
| 783 buf->writenl(); | |
| 784 | |
| 785 if (statement) | |
| 786 statement->toCBuffer(buf, hgs); | |
| 787 | |
| 788 buf->writeByte('}'); | |
| 789 buf->writenl(); | |
| 790 } | |
| 791 | |
| 792 /******************************** WhileStatement ***************************/ | |
| 793 | |
| 794 WhileStatement::WhileStatement(Loc loc, Expression *c, Statement *b) | |
| 795 : Statement(loc) | |
| 796 { | |
| 797 condition = c; | |
| 798 body = b; | |
| 309 | 799 enclosinghandler = NULL; |
| 159 | 800 } |
| 801 | |
| 802 Statement *WhileStatement::syntaxCopy() | |
| 803 { | |
| 804 WhileStatement *s = new WhileStatement(loc, condition->syntaxCopy(), body ? body->syntaxCopy() : NULL); | |
| 805 return s; | |
| 806 } | |
| 807 | |
| 808 | |
| 809 Statement *WhileStatement::semantic(Scope *sc) | |
| 810 { | |
| 811 #if 0 | |
| 812 if (condition->op == TOKmatch) | |
| 813 { | |
| 814 /* Rewrite while (condition) body as: | |
| 815 * if (condition) | |
| 816 * do | |
| 817 * body | |
| 818 * while ((_match = _match.opNext), _match); | |
| 819 */ | |
| 820 | |
| 821 Expression *ew = new IdentifierExp(0, Id::_match); | |
| 822 ew = new DotIdExp(0, ew, Id::next); | |
| 823 ew = new AssignExp(0, new IdentifierExp(0, Id::_match), ew); | |
| 824 ////ew = new EqualExp(TOKnotequal, 0, ew, new NullExp(0)); | |
| 825 Expression *ev = new IdentifierExp(0, Id::_match); | |
| 826 //ev = new CastExp(0, ev, Type::tvoidptr); | |
| 827 ew = new CommaExp(0, ew, ev); | |
| 828 Statement *sw = new DoStatement(loc, body, ew); | |
| 829 Statement *si = new IfStatement(loc, condition, sw, NULL); | |
| 830 return si->semantic(sc); | |
| 831 } | |
| 832 #endif | |
| 833 | |
| 309 | 834 enclosinghandler = sc->tfOfTry; |
| 159 | 835 |
| 836 condition = condition->semantic(sc); | |
| 837 condition = resolveProperties(sc, condition); | |
| 838 condition = condition->optimize(WANTvalue); | |
| 839 condition = condition->checkToBoolean(); | |
| 840 | |
| 841 sc->noctor++; | |
| 842 | |
| 843 Scope *scd = sc->push(); | |
| 844 scd->sbreak = this; | |
| 845 scd->scontinue = this; | |
| 846 if (body) | |
| 847 body = body->semantic(scd); | |
| 848 scd->pop(); | |
| 849 | |
| 850 sc->noctor--; | |
| 851 | |
| 852 return this; | |
| 853 } | |
| 854 | |
| 855 int WhileStatement::hasBreak() | |
| 856 { | |
| 857 return TRUE; | |
| 858 } | |
| 859 | |
| 860 int WhileStatement::hasContinue() | |
| 861 { | |
| 862 return TRUE; | |
| 863 } | |
| 864 | |
| 865 int WhileStatement::usesEH() | |
| 866 { | |
| 867 return body ? body->usesEH() : 0; | |
| 868 } | |
| 869 | |
| 336 | 870 int WhileStatement::blockExit() |
| 871 { | |
| 872 //printf("WhileStatement::blockExit(%p)\n", this); | |
| 873 | |
| 874 int result = BEnone; | |
| 875 if (condition->canThrow()) | |
| 876 result |= BEthrow; | |
| 877 if (condition->isBool(TRUE)) | |
| 878 { | |
| 879 if (body) | |
| 880 { result |= body->blockExit(); | |
| 881 if (result & BEbreak) | |
| 882 result |= BEfallthru; | |
| 883 } | |
| 884 } | |
| 885 else if (condition->isBool(FALSE)) | |
| 886 { | |
| 887 result |= BEfallthru; | |
| 888 } | |
| 889 else | |
| 890 { | |
| 891 if (body) | |
| 892 result |= body->blockExit(); | |
| 893 result |= BEfallthru; | |
| 894 } | |
| 895 result &= ~(BEbreak | BEcontinue); | |
| 896 return result; | |
| 897 } | |
| 898 | |
| 159 | 899 int WhileStatement::comeFrom() |
| 900 { | |
| 901 if (body) | |
| 902 return body->comeFrom(); | |
| 903 return FALSE; | |
| 904 } | |
| 905 | |
| 906 void WhileStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 907 { | |
| 908 buf->writestring("while ("); | |
| 909 condition->toCBuffer(buf, hgs); | |
| 910 buf->writebyte(')'); | |
| 911 buf->writenl(); | |
| 912 if (body) | |
| 913 body->toCBuffer(buf, hgs); | |
| 914 } | |
| 915 | |
| 916 /******************************** DoStatement ***************************/ | |
| 917 | |
| 918 DoStatement::DoStatement(Loc loc, Statement *b, Expression *c) | |
| 919 : Statement(loc) | |
| 920 { | |
| 921 body = b; | |
| 922 condition = c; | |
| 309 | 923 enclosinghandler = NULL; |
| 159 | 924 } |
| 925 | |
| 926 Statement *DoStatement::syntaxCopy() | |
| 927 { | |
| 928 DoStatement *s = new DoStatement(loc, body ? body->syntaxCopy() : NULL, condition->syntaxCopy()); | |
| 929 return s; | |
| 930 } | |
| 931 | |
| 932 | |
| 933 Statement *DoStatement::semantic(Scope *sc) | |
| 934 { | |
| 309 | 935 enclosinghandler = sc->tfOfTry; |
| 159 | 936 |
| 937 sc->noctor++; | |
| 938 if (body) | |
| 939 body = body->semanticScope(sc, this, this); | |
| 940 sc->noctor--; | |
| 941 condition = condition->semantic(sc); | |
| 942 condition = resolveProperties(sc, condition); | |
| 943 condition = condition->optimize(WANTvalue); | |
| 944 | |
| 945 condition = condition->checkToBoolean(); | |
| 946 | |
| 947 return this; | |
| 948 } | |
| 949 | |
| 950 int DoStatement::hasBreak() | |
| 951 { | |
| 952 return TRUE; | |
| 953 } | |
| 954 | |
| 955 int DoStatement::hasContinue() | |
| 956 { | |
| 957 return TRUE; | |
| 958 } | |
| 959 | |
| 960 int DoStatement::usesEH() | |
| 961 { | |
| 962 return body ? body->usesEH() : 0; | |
| 963 } | |
| 964 | |
| 336 | 965 int DoStatement::blockExit() |
| 966 { int result; | |
| 967 | |
| 968 if (body) | |
| 969 { result = body->blockExit(); | |
| 970 if (result == BEbreak) | |
| 971 return BEfallthru; | |
| 972 if (result & BEcontinue) | |
| 973 result |= BEfallthru; | |
| 974 } | |
| 975 else | |
| 976 result = BEfallthru; | |
| 977 if (result & BEfallthru) | |
| 978 { if (condition->canThrow()) | |
| 979 result |= BEthrow; | |
| 980 if (!(result & BEbreak) && condition->isBool(TRUE)) | |
| 981 result &= ~BEfallthru; | |
| 982 } | |
| 983 result &= ~(BEbreak | BEcontinue); | |
| 984 return result; | |
| 985 } | |
| 986 | |
| 159 | 987 int DoStatement::comeFrom() |
| 988 { | |
| 989 if (body) | |
| 990 return body->comeFrom(); | |
| 991 return FALSE; | |
| 992 } | |
| 993 | |
| 994 void DoStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 995 { | |
| 996 buf->writestring("do"); | |
| 997 buf->writenl(); | |
| 998 if (body) | |
| 999 body->toCBuffer(buf, hgs); | |
| 1000 buf->writestring("while ("); | |
| 1001 condition->toCBuffer(buf, hgs); | |
| 1002 buf->writebyte(')'); | |
| 1003 } | |
| 1004 | |
| 1005 /******************************** ForStatement ***************************/ | |
| 1006 | |
| 1007 ForStatement::ForStatement(Loc loc, Statement *init, Expression *condition, Expression *increment, Statement *body) | |
| 1008 : Statement(loc) | |
| 1009 { | |
| 1010 this->init = init; | |
| 1011 this->condition = condition; | |
| 1012 this->increment = increment; | |
| 1013 this->body = body; | |
| 309 | 1014 this->enclosinghandler = NULL; |
| 159 | 1015 } |
| 1016 | |
| 1017 Statement *ForStatement::syntaxCopy() | |
| 1018 { | |
| 1019 Statement *i = NULL; | |
| 1020 if (init) | |
| 1021 i = init->syntaxCopy(); | |
| 1022 Expression *c = NULL; | |
| 1023 if (condition) | |
| 1024 c = condition->syntaxCopy(); | |
| 1025 Expression *inc = NULL; | |
| 1026 if (increment) | |
| 1027 inc = increment->syntaxCopy(); | |
| 1028 ForStatement *s = new ForStatement(loc, i, c, inc, body->syntaxCopy()); | |
| 1029 return s; | |
| 1030 } | |
| 1031 | |
| 1032 Statement *ForStatement::semantic(Scope *sc) | |
| 1033 { | |
| 309 | 1034 enclosinghandler = sc->tfOfTry; |
| 159 | 1035 |
| 1036 ScopeDsymbol *sym = new ScopeDsymbol(); | |
| 1037 sym->parent = sc->scopesym; | |
| 1038 sc = sc->push(sym); | |
| 1039 if (init) | |
| 1040 init = init->semantic(sc); | |
|
1103
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|
1041 #if 0 |
| 159 | 1042 if (!condition) |
| 1043 // Use a default value | |
| 1044 condition = new IntegerExp(loc, 1, Type::tboolean); | |
|
1103
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parents:
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diff
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|
1045 #endif |
| 159 | 1046 sc->noctor++; |
|
846
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changeset
|
1047 if (condition) |
|
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diff
changeset
|
1048 { |
|
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changeset
|
1049 condition = condition->semantic(sc); |
|
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|
1050 condition = resolveProperties(sc, condition); |
|
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|
1051 condition = condition->optimize(WANTvalue); |
|
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parents:
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|
1052 condition = condition->checkToBoolean(); |
|
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parents:
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|
1053 } |
| 159 | 1054 if (increment) |
|
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changeset
|
1055 { increment = increment->semantic(sc); |
|
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parents:
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|
1056 increment = resolveProperties(sc, increment); |
|
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|
1057 } |
| 159 | 1058 |
| 1059 sc->sbreak = this; | |
| 1060 sc->scontinue = this; | |
| 1061 body = body->semantic(sc); | |
| 1062 sc->noctor--; | |
| 1063 | |
| 1064 sc->pop(); | |
| 1065 return this; | |
| 1066 } | |
| 1067 | |
| 1068 void ForStatement::scopeCode(Statement **sentry, Statement **sexception, Statement **sfinally) | |
| 1069 { | |
| 1070 //printf("ForStatement::scopeCode()\n"); | |
| 1071 //print(); | |
| 1072 if (init) | |
| 1073 init->scopeCode(sentry, sexception, sfinally); | |
| 1074 else | |
| 1075 Statement::scopeCode(sentry, sexception, sfinally); | |
| 1076 } | |
| 1077 | |
| 1078 int ForStatement::hasBreak() | |
| 1079 { | |
| 1080 //printf("ForStatement::hasBreak()\n"); | |
| 1081 return TRUE; | |
| 1082 } | |
| 1083 | |
| 1084 int ForStatement::hasContinue() | |
| 1085 { | |
| 1086 return TRUE; | |
| 1087 } | |
| 1088 | |
| 1089 int ForStatement::usesEH() | |
| 1090 { | |
| 1091 return (init && init->usesEH()) || body->usesEH(); | |
| 1092 } | |
| 1093 | |
| 336 | 1094 int ForStatement::blockExit() |
| 1095 { int result = BEfallthru; | |
| 1096 | |
| 1097 if (init) | |
| 1098 { result = init->blockExit(); | |
| 1099 if (!(result & BEfallthru)) | |
| 1100 return result; | |
| 1101 } | |
| 1102 if (condition) | |
| 1103 { if (condition->canThrow()) | |
| 1104 result |= BEthrow; | |
| 1105 } | |
| 1106 else | |
| 1107 result &= ~BEfallthru; // the body must do the exiting | |
| 1108 if (body) | |
| 1109 { int r = body->blockExit(); | |
|
1103
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parents:
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|
1110 if (r & (BEbreak | BEgoto)) |
| 336 | 1111 result |= BEfallthru; |
|
1103
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parents:
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changeset
|
1112 result |= r & ~(BEfallthru | BEbreak | BEcontinue); |
| 336 | 1113 } |
| 1114 if (increment && increment->canThrow()) | |
| 1115 result |= BEthrow; | |
| 1116 return result; | |
| 1117 } | |
| 1118 | |
| 159 | 1119 int ForStatement::comeFrom() |
| 1120 { | |
| 1121 //printf("ForStatement::comeFrom()\n"); | |
| 1122 if (body) | |
| 1123 { int result = body->comeFrom(); | |
| 1124 //printf("result = %d\n", result); | |
| 1125 return result; | |
| 1126 } | |
| 1127 return FALSE; | |
| 1128 } | |
| 1129 | |
| 1130 void ForStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1131 { | |
| 1132 buf->writestring("for ("); | |
| 1133 if (init) | |
| 1134 { | |
| 1135 hgs->FLinit.init++; | |
| 1136 hgs->FLinit.decl = 0; | |
| 1137 init->toCBuffer(buf, hgs); | |
| 1138 if (hgs->FLinit.decl > 0) | |
| 1139 buf->writebyte(';'); | |
| 1140 hgs->FLinit.decl = 0; | |
| 1141 hgs->FLinit.init--; | |
| 1142 } | |
| 1143 else | |
| 1144 buf->writebyte(';'); | |
| 1145 if (condition) | |
| 1146 { buf->writebyte(' '); | |
| 1147 condition->toCBuffer(buf, hgs); | |
| 1148 } | |
| 1149 buf->writebyte(';'); | |
| 1150 if (increment) | |
| 1151 { buf->writebyte(' '); | |
| 1152 increment->toCBuffer(buf, hgs); | |
| 1153 } | |
| 1154 buf->writebyte(')'); | |
| 1155 buf->writenl(); | |
| 1156 buf->writebyte('{'); | |
| 1157 buf->writenl(); | |
| 1158 body->toCBuffer(buf, hgs); | |
| 1159 buf->writebyte('}'); | |
| 1160 buf->writenl(); | |
| 1161 } | |
| 1162 | |
| 1163 /******************************** ForeachStatement ***************************/ | |
| 1164 | |
| 1165 ForeachStatement::ForeachStatement(Loc loc, enum TOK op, Arguments *arguments, | |
| 1166 Expression *aggr, Statement *body) | |
| 1167 : Statement(loc) | |
| 1168 { | |
| 1169 this->op = op; | |
| 1170 this->arguments = arguments; | |
| 1171 this->aggr = aggr; | |
| 1172 this->body = body; | |
| 309 | 1173 this->enclosinghandler = NULL; |
| 159 | 1174 |
| 1175 this->key = NULL; | |
| 1176 this->value = NULL; | |
| 1177 | |
| 1178 this->func = NULL; | |
| 1179 } | |
| 1180 | |
| 1181 Statement *ForeachStatement::syntaxCopy() | |
| 1182 { | |
| 1183 Arguments *args = Argument::arraySyntaxCopy(arguments); | |
| 1184 Expression *exp = aggr->syntaxCopy(); | |
| 1185 ForeachStatement *s = new ForeachStatement(loc, op, args, exp, | |
| 1186 body ? body->syntaxCopy() : NULL); | |
| 1187 return s; | |
| 1188 } | |
| 1189 | |
| 1190 Statement *ForeachStatement::semantic(Scope *sc) | |
| 1191 { | |
| 1192 //printf("ForeachStatement::semantic() %p\n", this); | |
| 1193 ScopeDsymbol *sym; | |
| 1194 Statement *s = this; | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1195 size_t dim = arguments->dim; |
| 159 | 1196 TypeAArray *taa = NULL; |
| 1197 | |
| 1198 Type *tn = NULL; | |
| 1199 Type *tnv = NULL; | |
| 1200 | |
| 309 | 1201 enclosinghandler = sc->tfOfTry; |
| 159 | 1202 |
| 1203 func = sc->func; | |
| 1204 if (func->fes) | |
| 1205 func = func->fes->func; | |
| 1206 | |
| 1207 aggr = aggr->semantic(sc); | |
| 1208 aggr = resolveProperties(sc, aggr); | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1209 aggr = aggr->optimize(WANTvalue); |
| 159 | 1210 if (!aggr->type) |
| 1211 { | |
| 1212 error("invalid foreach aggregate %s", aggr->toChars()); | |
| 1213 return this; | |
| 1214 } | |
| 1215 | |
| 1216 inferApplyArgTypes(op, arguments, aggr); | |
| 1217 | |
| 1218 /* Check for inference errors | |
| 1219 */ | |
| 1220 if (dim != arguments->dim) | |
| 1221 { | |
| 1222 //printf("dim = %d, arguments->dim = %d\n", dim, arguments->dim); | |
| 1223 error("cannot uniquely infer foreach argument types"); | |
| 1224 return this; | |
| 1225 } | |
| 1226 | |
| 1227 Type *tab = aggr->type->toBasetype(); | |
| 1228 | |
| 1229 if (tab->ty == Ttuple) // don't generate new scope for tuple loops | |
| 1230 { | |
| 1231 if (dim < 1 || dim > 2) | |
| 1232 { | |
| 1233 error("only one (value) or two (key,value) arguments for tuple foreach"); | |
| 1234 return s; | |
| 1235 } | |
| 1236 | |
| 1237 TypeTuple *tuple = (TypeTuple *)tab; | |
| 1238 Statements *statements = new Statements(); | |
| 1239 //printf("aggr: op = %d, %s\n", aggr->op, aggr->toChars()); | |
| 1240 size_t n; | |
| 1241 TupleExp *te = NULL; | |
| 1242 if (aggr->op == TOKtuple) // expression tuple | |
| 1243 { te = (TupleExp *)aggr; | |
| 1244 n = te->exps->dim; | |
| 1245 } | |
| 1246 else if (aggr->op == TOKtype) // type tuple | |
| 1247 { | |
| 1248 n = Argument::dim(tuple->arguments); | |
| 1249 } | |
| 1250 else | |
| 1251 assert(0); | |
| 1252 for (size_t j = 0; j < n; j++) | |
| 1253 { size_t k = (op == TOKforeach) ? j : n - 1 - j; | |
| 1254 Expression *e; | |
| 1255 Type *t; | |
| 1256 if (te) | |
| 1257 e = (Expression *)te->exps->data[k]; | |
| 1258 else | |
| 1259 t = Argument::getNth(tuple->arguments, k)->type; | |
| 1260 Argument *arg = (Argument *)arguments->data[0]; | |
| 1261 Statements *st = new Statements(); | |
| 1262 | |
| 1263 if (dim == 2) | |
| 1264 { // Declare key | |
| 1265 if (arg->storageClass & (STCout | STCref | STClazy)) | |
| 1266 error("no storage class for key %s", arg->ident->toChars()); | |
| 1267 TY keyty = arg->type->ty; | |
|
275
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parents:
262
diff
changeset
|
1268 if (global.params.is64bit) |
|
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[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1269 { |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1270 if (keyty != Tint32 && keyty != Tuns32 && keyty != Tint64 && keyty != Tuns64) |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1271 { |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1272 error("foreach: key type must be int, uint, long or ulong, not %s", key->type->toChars()); |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1273 } |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1274 } |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1275 else if (keyty != Tint32 && keyty != Tuns32) |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1276 { |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1277 error("foreach: key type must be int or uint, not %s", key->type->toChars()); |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1278 } |
| 159 | 1279 Initializer *ie = new ExpInitializer(0, new IntegerExp(k)); |
| 1280 VarDeclaration *var = new VarDeclaration(loc, arg->type, arg->ident, ie); | |
| 1281 var->storage_class |= STCconst; | |
| 1282 DeclarationExp *de = new DeclarationExp(loc, var); | |
| 1283 st->push(new ExpStatement(loc, de)); | |
| 1284 arg = (Argument *)arguments->data[1]; // value | |
| 1285 } | |
| 1286 // Declare value | |
| 1287 if (arg->storageClass & (STCout | STCref | STClazy)) | |
| 1288 error("no storage class for value %s", arg->ident->toChars()); | |
| 1289 Dsymbol *var; | |
| 1290 if (te) | |
| 1291 { | |
| 1292 if (e->type->toBasetype()->ty == Tfunction && | |
| 1293 e->op == TOKvar) | |
| 1294 { VarExp *ve = (VarExp *)e; | |
| 1295 var = new AliasDeclaration(loc, arg->ident, ve->var); | |
| 1296 } | |
| 1297 else | |
| 1298 { | |
| 1299 arg->type = e->type; | |
| 1300 Initializer *ie = new ExpInitializer(0, e); | |
| 1301 VarDeclaration *v = new VarDeclaration(loc, arg->type, arg->ident, ie); | |
| 1302 if (e->isConst()) | |
| 1303 v->storage_class |= STCconst; | |
| 1304 var = v; | |
| 1305 } | |
| 1306 } | |
| 1307 else | |
| 1308 { | |
| 1309 var = new AliasDeclaration(loc, arg->ident, t); | |
| 1310 } | |
| 1311 DeclarationExp *de = new DeclarationExp(loc, var); | |
| 1312 st->push(new ExpStatement(loc, de)); | |
| 1313 | |
| 1314 st->push(body->syntaxCopy()); | |
| 1315 s = new CompoundStatement(loc, st); | |
| 1316 s = new ScopeStatement(loc, s); | |
| 1317 statements->push(s); | |
| 1318 } | |
| 1319 | |
| 1320 s = new UnrolledLoopStatement(loc, statements); | |
| 1321 s = s->semantic(sc); | |
| 1322 return s; | |
| 1323 } | |
| 1324 | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1325 for (size_t i = 0; i < dim; i++) |
| 159 | 1326 { Argument *arg = (Argument *)arguments->data[i]; |
| 1327 if (!arg->type) | |
| 1328 { | |
| 1329 error("cannot infer type for %s", arg->ident->toChars()); | |
| 1330 return this; | |
| 1331 } | |
| 1332 } | |
| 1333 | |
| 1334 sym = new ScopeDsymbol(); | |
| 1335 sym->parent = sc->scopesym; | |
| 1336 sc = sc->push(sym); | |
| 1337 | |
| 1338 sc->noctor++; | |
| 1339 | |
| 1340 switch (tab->ty) | |
| 1341 { | |
| 1342 case Tarray: | |
| 1343 case Tsarray: | |
| 1344 if (dim < 1 || dim > 2) | |
| 1345 { | |
| 1346 error("only one or two arguments for array foreach"); | |
| 1347 break; | |
| 1348 } | |
| 1349 | |
| 1350 /* Look for special case of parsing char types out of char type | |
| 1351 * array. | |
| 1352 */ | |
| 1353 tn = tab->nextOf()->toBasetype(); | |
| 1354 if (tn->ty == Tchar || tn->ty == Twchar || tn->ty == Tdchar) | |
| 1355 { Argument *arg; | |
| 1356 | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1357 int i = (dim == 1) ? 0 : 1; // index of value |
| 159 | 1358 arg = (Argument *)arguments->data[i]; |
| 1359 arg->type = arg->type->semantic(loc, sc); | |
| 1360 tnv = arg->type->toBasetype(); | |
| 1361 if (tnv->ty != tn->ty && | |
| 1362 (tnv->ty == Tchar || tnv->ty == Twchar || tnv->ty == Tdchar)) | |
| 1363 { | |
| 1364 if (arg->storageClass & STCref) | |
| 1365 error("foreach: value of UTF conversion cannot be ref"); | |
| 1366 if (dim == 2) | |
| 1367 { arg = (Argument *)arguments->data[0]; | |
| 1368 if (arg->storageClass & STCref) | |
| 1369 error("foreach: key cannot be ref"); | |
| 1370 } | |
| 1371 goto Lapply; | |
| 1372 } | |
| 1373 } | |
| 1374 | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1375 for (size_t i = 0; i < dim; i++) |
| 159 | 1376 { // Declare args |
| 1377 Argument *arg = (Argument *)arguments->data[i]; | |
| 1378 VarDeclaration *var; | |
| 1379 | |
| 1380 var = new VarDeclaration(loc, arg->type, arg->ident, NULL); | |
| 1381 var->storage_class |= STCforeach; | |
| 1382 var->storage_class |= arg->storageClass & (STCin | STCout | STCref); | |
| 1383 #if 1 | |
| 1384 DeclarationExp *de = new DeclarationExp(loc, var); | |
| 1385 de->semantic(sc); | |
| 1386 #else | |
| 1387 var->semantic(sc); | |
| 1388 if (!sc->insert(var)) | |
| 1389 error("%s already defined", var->ident->toChars()); | |
| 1390 #endif | |
| 1391 if (dim == 2 && i == 0) | |
| 1392 key = var; | |
| 1393 else | |
| 1394 value = var; | |
| 1395 } | |
| 1396 | |
| 1397 sc->sbreak = this; | |
| 1398 sc->scontinue = this; | |
| 1399 body = body->semantic(sc); | |
| 1400 | |
| 1401 if (!value->type->equals(tab->next)) | |
| 1402 { | |
| 1403 if (aggr->op == TOKstring) | |
| 1404 aggr = aggr->implicitCastTo(sc, value->type->arrayOf()); | |
| 1405 else | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1406 error("foreach: %s is not an array of %s", |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1407 tab->toChars(), value->type->toChars()); |
| 159 | 1408 } |
| 1409 | |
|
275
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lindquist
parents:
262
diff
changeset
|
1410 if (key) |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1411 { |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1412 if (global.params.is64bit) |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1413 { |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1414 if (key->type->ty != Tint32 && key->type->ty != Tuns32 && key->type->ty != Tint64 && key->type->ty != Tuns64) |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1415 { |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1416 error("foreach: key type must be int, uint, long or ulong, not %s", key->type->toChars()); |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1417 } |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1418 } |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1419 else if (key->type->ty != Tint32 && key->type->ty != Tuns32) |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1420 { |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1421 error("foreach: key type must be int or uint, not %s", key->type->toChars()); |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1422 } |
|
665b81613475
[svn r296] Removed: the 'suite' dir, it never took off!
lindquist
parents:
262
diff
changeset
|
1423 } |
| 159 | 1424 |
| 1425 if (key && key->storage_class & (STCout | STCref)) | |
| 1426 error("foreach: key cannot be out or ref"); | |
| 1427 break; | |
| 1428 | |
| 1429 case Taarray: | |
| 1430 taa = (TypeAArray *)tab; | |
| 1431 if (dim < 1 || dim > 2) | |
| 1432 { | |
| 1433 error("only one or two arguments for associative array foreach"); | |
| 1434 break; | |
| 1435 } | |
| 1436 if (op == TOKforeach_reverse) | |
| 1437 { | |
| 1438 error("no reverse iteration on associative arrays"); | |
| 1439 } | |
| 1440 goto Lapply; | |
| 1441 | |
| 1442 case Tclass: | |
| 1443 case Tstruct: | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1444 #if DMDV2 |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1445 { /* Look for range iteration, i.e. the properties |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1446 * .empty, .next, .retreat, .head and .rear |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1447 * foreach (e; range) { ... } |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1448 * translates to: |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1449 * for (auto __r = range; !__r.empty; __r.next) |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1450 * { auto e = __r.head; |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1451 * ... |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1452 * } |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1453 */ |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1454 if (dim != 1) // only one argument allowed with ranges |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1455 goto Lapply; |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1456 AggregateDeclaration *ad = (tab->ty == Tclass) |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1457 ? (AggregateDeclaration *)((TypeClass *)tab)->sym |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1458 : (AggregateDeclaration *)((TypeStruct *)tab)->sym; |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1459 Identifier *idhead; |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1460 Identifier *idnext; |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1461 if (op == TOKforeach) |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1462 { idhead = Id::Fhead; |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1463 idnext = Id::Fnext; |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1464 } |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1465 else |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1466 { idhead = Id::Frear; |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1467 idnext = Id::Fretreat; |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1468 } |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1469 Dsymbol *shead = search_function(ad, idhead); |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1470 if (!shead) |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1471 goto Lapply; |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1472 |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1473 /* Generate a temporary __r and initialize it with the aggregate. |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1474 */ |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1475 Identifier *id = Identifier::generateId("__r"); |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
1476 VarDeclaration *r = new VarDeclaration(loc, NULL, id, new ExpInitializer(loc, aggr)); |
|
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1477 r->semantic(sc); |
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1478 Statement *init = new DeclarationStatement(loc, r); |
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1479 |
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1480 // !__r.empty |
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1481 Expression *e = new VarExp(loc, r); |
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1482 e = new DotIdExp(loc, e, Id::Fempty); |
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1483 Expression *condition = new NotExp(loc, e); |
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1484 |
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1485 // __r.next |
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1486 e = new VarExp(loc, r); |
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1487 Expression *increment = new DotIdExp(loc, e, idnext); |
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1488 |
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1489 /* Declaration statement for e: |
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1490 * auto e = __r.idhead; |
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1491 */ |
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1492 e = new VarExp(loc, r); |
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1493 Expression *einit = new DotIdExp(loc, e, idhead); |
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1494 einit = einit->semantic(sc); |
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1495 Argument *arg = (Argument *)arguments->data[0]; |
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1496 VarDeclaration *ve = new VarDeclaration(loc, arg->type, arg->ident, new ExpInitializer(loc, einit)); |
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1497 ve->storage_class |= STCforeach; |
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1498 ve->storage_class |= arg->storageClass & (STCin | STCout | STCref | STCconst | STCinvariant); |
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1499 |
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1500 DeclarationExp *de = new DeclarationExp(loc, ve); |
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1501 |
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1502 Statement *body = new CompoundStatement(loc, |
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1503 new DeclarationStatement(loc, de), this->body); |
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1504 |
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1505 s = new ForStatement(loc, init, condition, increment, body); |
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1506 s = s->semantic(sc); |
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1507 break; |
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1508 } |
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1509 #endif |
| 159 | 1510 case Tdelegate: |
| 1511 Lapply: | |
| 1512 { FuncDeclaration *fdapply; | |
| 1513 Arguments *args; | |
| 1514 Expression *ec; | |
| 1515 Expression *e; | |
| 1516 FuncLiteralDeclaration *fld; | |
| 1517 Argument *a; | |
| 1518 Type *t; | |
| 1519 Expression *flde; | |
| 1520 Identifier *id; | |
| 1521 Type *tret; | |
|
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1522 TypeDelegate* dgty; |
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1523 TypeDelegate* dgty2; |
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1524 TypeDelegate* fldeTy; |
| 159 | 1525 |
| 1526 tret = func->type->nextOf(); | |
| 1527 | |
| 1528 // Need a variable to hold value from any return statements in body. | |
| 1529 if (!sc->func->vresult && tret && tret != Type::tvoid) | |
| 1530 { VarDeclaration *v; | |
| 1531 | |
| 1532 v = new VarDeclaration(loc, tret, Id::result, NULL); | |
| 1533 v->noauto = 1; | |
| 1534 v->semantic(sc); | |
| 1535 if (!sc->insert(v)) | |
| 1536 assert(0); | |
| 1537 v->parent = sc->func; | |
| 1538 sc->func->vresult = v; | |
| 1539 } | |
| 1540 | |
| 1541 /* Turn body into the function literal: | |
| 1542 * int delegate(ref T arg) { body } | |
| 1543 */ | |
| 1544 args = new Arguments(); | |
|
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1545 for (size_t i = 0; i < dim; i++) |
| 159 | 1546 { Argument *arg = (Argument *)arguments->data[i]; |
| 1547 | |
| 1548 arg->type = arg->type->semantic(loc, sc); | |
| 1549 if (arg->storageClass & STCref) | |
| 1550 id = arg->ident; | |
| 1551 else | |
| 1552 { // Make a copy of the ref argument so it isn't | |
| 1553 // a reference. | |
| 1554 VarDeclaration *v; | |
| 1555 Initializer *ie; | |
|
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1556 |
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1557 id = Lexer::uniqueId("__applyArg", i); |
| 159 | 1558 |
| 1559 ie = new ExpInitializer(0, new IdentifierExp(0, id)); | |
| 1560 v = new VarDeclaration(0, arg->type, arg->ident, ie); | |
| 1561 s = new DeclarationStatement(0, v); | |
| 1562 body = new CompoundStatement(loc, s, body); | |
| 1563 } | |
| 1564 a = new Argument(STCref, arg->type, id, NULL); | |
| 1565 args->push(a); | |
| 1566 } | |
| 1567 t = new TypeFunction(args, Type::tint32, 0, LINKd); | |
| 1568 fld = new FuncLiteralDeclaration(loc, 0, t, TOKdelegate, this); | |
| 1569 fld->fbody = body; | |
| 1570 flde = new FuncExp(loc, fld); | |
| 1571 flde = flde->semantic(sc); | |
| 1572 | |
| 1573 // Resolve any forward referenced goto's | |
| 1574 for (int i = 0; i < gotos.dim; i++) | |
| 1575 { CompoundStatement *cs = (CompoundStatement *)gotos.data[i]; | |
| 1576 GotoStatement *gs = (GotoStatement *)cs->statements->data[0]; | |
| 1577 | |
| 1578 if (!gs->label->statement) | |
| 1579 { // 'Promote' it to this scope, and replace with a return | |
| 1580 cases.push(gs); | |
| 1581 s = new ReturnStatement(0, new IntegerExp(cases.dim + 1)); | |
| 1582 cs->statements->data[0] = (void *)s; | |
| 1583 } | |
| 1584 } | |
| 1585 | |
| 1586 if (tab->ty == Taarray) | |
| 1587 { | |
| 1588 // Check types | |
| 1589 Argument *arg = (Argument *)arguments->data[0]; | |
| 1590 if (dim == 2) | |
| 1591 { | |
| 1592 if (arg->storageClass & STCref) | |
| 1593 error("foreach: index cannot be ref"); | |
| 1594 if (!arg->type->equals(taa->index)) | |
| 1595 error("foreach: index must be type %s, not %s", taa->index->toChars(), arg->type->toChars()); | |
| 1596 arg = (Argument *)arguments->data[1]; | |
| 1597 } | |
| 1598 if (!arg->type->equals(taa->nextOf())) | |
| 1599 error("foreach: value must be type %s, not %s", taa->nextOf()->toChars(), arg->type->toChars()); | |
| 1600 | |
| 1601 /* Call: | |
| 1602 * _aaApply(aggr, keysize, flde) | |
| 1603 */ | |
|
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1604 //LDC: Build arguments. |
|
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1605 static FuncDeclaration *aaApply2_fd = NULL; |
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1606 static TypeDelegate* aaApply2_dg; |
|
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1607 if(!aaApply2_fd) { |
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1608 Arguments* args = new Arguments; |
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1609 args->push(new Argument(STCin, Type::tvoid->pointerTo(), NULL, NULL)); |
|
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1610 args->push(new Argument(STCin, Type::tsize_t, NULL, NULL)); |
|
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1611 Arguments* dgargs = new Arguments; |
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1612 dgargs->push(new Argument(STCin, Type::tvoidptr, NULL, NULL)); |
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1613 dgargs->push(new Argument(STCin, Type::tvoidptr, NULL, NULL)); |
|
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1614 aaApply2_dg = new TypeDelegate(new TypeFunction(dgargs, Type::tindex, 0, LINKd)); |
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1615 args->push(new Argument(STCin, aaApply2_dg, NULL, NULL)); |
|
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1616 aaApply2_fd = FuncDeclaration::genCfunc(args, Type::tindex, "_aaApply2"); |
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1617 } |
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1618 static FuncDeclaration *aaApply_fd = NULL; |
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1619 static TypeDelegate* aaApply_dg; |
|
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1620 if(!aaApply_fd) { |
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1621 Arguments* args = new Arguments; |
|
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1622 args->push(new Argument(STCin, Type::tvoid->pointerTo(), NULL, NULL)); |
|
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1623 args->push(new Argument(STCin, Type::tsize_t, NULL, NULL)); |
|
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1624 Arguments* dgargs = new Arguments; |
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1625 dgargs->push(new Argument(STCin, Type::tvoidptr, NULL, NULL)); |
|
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1626 aaApply_dg = new TypeDelegate(new TypeFunction(dgargs, Type::tindex, 0, LINKd)); |
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1627 args->push(new Argument(STCin, aaApply_dg, NULL, NULL)); |
|
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1628 aaApply_fd = FuncDeclaration::genCfunc(args, Type::tindex, "_aaApply"); |
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1629 } |
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1630 if (dim == 2) { |
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1631 fdapply = aaApply2_fd; |
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1632 fldeTy = aaApply2_dg; |
|
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1633 } else { |
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1634 fdapply = aaApply_fd; |
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1635 fldeTy = aaApply_dg; |
|
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1636 } |
| 159 | 1637 ec = new VarExp(0, fdapply); |
| 1638 Expressions *exps = new Expressions(); | |
| 1639 exps->push(aggr); | |
| 1640 size_t keysize = taa->key->size(); | |
|
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1641 keysize = (keysize + (PTRSIZE-1)) & ~(PTRSIZE-1); |
| 159 | 1642 exps->push(new IntegerExp(0, keysize, Type::tsize_t)); |
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1643 |
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1644 // LDC paint delegate argument to the type runtime expects |
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1645 if (!fldeTy->equals(flde->type)) |
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1646 { |
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1647 flde = new CastExp(loc, flde, flde->type); |
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1648 flde->type = fldeTy; |
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1649 } |
| 159 | 1650 exps->push(flde); |
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1651 |
| 159 | 1652 e = new CallExp(loc, ec, exps); |
| 1653 e->type = Type::tindex; // don't run semantic() on e | |
| 1654 } | |
| 1655 else if (tab->ty == Tarray || tab->ty == Tsarray) | |
| 1656 { | |
| 1657 /* Call: | |
| 1658 * _aApply(aggr, flde) | |
| 1659 */ | |
| 1660 static char fntab[9][3] = | |
| 1661 { "cc","cw","cd", | |
| 1662 "wc","cc","wd", | |
| 1663 "dc","dw","dd" | |
| 1664 }; | |
| 1665 char fdname[7+1+2+ sizeof(dim)*3 + 1]; | |
| 1666 int flag; | |
| 1667 | |
| 1668 switch (tn->ty) | |
| 1669 { | |
| 1670 case Tchar: flag = 0; break; | |
| 1671 case Twchar: flag = 3; break; | |
| 1672 case Tdchar: flag = 6; break; | |
| 1673 default: assert(0); | |
| 1674 } | |
| 1675 switch (tnv->ty) | |
| 1676 { | |
| 1677 case Tchar: flag += 0; break; | |
| 1678 case Twchar: flag += 1; break; | |
| 1679 case Tdchar: flag += 2; break; | |
| 1680 default: assert(0); | |
| 1681 } | |
| 1682 const char *r = (op == TOKforeach_reverse) ? "R" : ""; | |
|
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1683 int j = sprintf(fdname, "_aApply%s%.*s%zu", r, 2, fntab[flag], dim); |
| 159 | 1684 assert(j < sizeof(fdname)); |
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1685 //LDC: Build arguments. |
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1686 Arguments* args = new Arguments; |
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1687 args->push(new Argument(STCin, tn->arrayOf(), NULL, NULL)); |
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1688 if (dim == 2) { |
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1689 Arguments* dgargs = new Arguments; |
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1690 dgargs->push(new Argument(STCin, Type::tvoidptr, NULL, NULL)); |
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1691 dgargs->push(new Argument(STCin, Type::tvoidptr, NULL, NULL)); |
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1692 dgty = new TypeDelegate(new TypeFunction(dgargs, Type::tindex, 0, LINKd)); |
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1693 args->push(new Argument(STCin, dgty, NULL, NULL)); |
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1694 fdapply = FuncDeclaration::genCfunc(args, Type::tindex, fdname); |
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1695 } else { |
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1696 Arguments* dgargs = new Arguments; |
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1697 dgargs->push(new Argument(STCin, Type::tvoidptr, NULL, NULL)); |
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1698 dgty = new TypeDelegate(new TypeFunction(dgargs, Type::tindex, 0, LINKd)); |
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1699 args->push(new Argument(STCin, dgty, NULL, NULL)); |
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1700 fdapply = FuncDeclaration::genCfunc(args, Type::tindex, fdname); |
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1701 } |
| 159 | 1702 |
| 1703 ec = new VarExp(0, fdapply); | |
| 1704 Expressions *exps = new Expressions(); | |
| 1705 if (tab->ty == Tsarray) | |
| 1706 aggr = aggr->castTo(sc, tn->arrayOf()); | |
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1707 exps->push(aggr); |
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1708 |
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1709 // LDC paint delegate argument to the type runtime expects |
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1710 if (!dgty->equals(flde->type)) |
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1711 { |
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1712 flde = new CastExp(loc, flde, flde->type); |
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1713 flde->type = dgty; |
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1714 } |
| 159 | 1715 exps->push(flde); |
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1716 |
| 159 | 1717 e = new CallExp(loc, ec, exps); |
| 1718 e->type = Type::tindex; // don't run semantic() on e | |
| 1719 } | |
| 1720 else if (tab->ty == Tdelegate) | |
| 1721 { | |
| 1722 /* Call: | |
| 1723 * aggr(flde) | |
| 1724 */ | |
| 1725 Expressions *exps = new Expressions(); | |
| 1726 exps->push(flde); | |
| 1727 e = new CallExp(loc, aggr, exps); | |
| 1728 e = e->semantic(sc); | |
| 1729 if (e->type != Type::tint32) | |
| 1730 error("opApply() function for %s must return an int", tab->toChars()); | |
| 1731 } | |
| 1732 else | |
| 1733 { | |
| 1734 /* Call: | |
| 1735 * aggr.apply(flde) | |
| 1736 */ | |
| 1737 ec = new DotIdExp(loc, aggr, | |
| 1738 (op == TOKforeach_reverse) ? Id::applyReverse | |
| 1739 : Id::apply); | |
| 1740 Expressions *exps = new Expressions(); | |
| 1741 exps->push(flde); | |
| 1742 e = new CallExp(loc, ec, exps); | |
| 1743 e = e->semantic(sc); | |
| 1744 if (e->type != Type::tint32) | |
| 1745 error("opApply() function for %s must return an int", tab->toChars()); | |
| 1746 } | |
| 1747 | |
| 1748 if (!cases.dim) | |
| 1749 // Easy case, a clean exit from the loop | |
| 1750 s = new ExpStatement(loc, e); | |
| 1751 else | |
| 1752 { // Construct a switch statement around the return value | |
| 1753 // of the apply function. | |
| 1754 Statements *a = new Statements(); | |
| 1755 | |
| 1756 // default: break; takes care of cases 0 and 1 | |
| 1757 s = new BreakStatement(0, NULL); | |
| 1758 s = new DefaultStatement(0, s); | |
| 1759 a->push(s); | |
| 1760 | |
| 1761 // cases 2... | |
| 1762 for (int i = 0; i < cases.dim; i++) | |
| 1763 { | |
| 1764 s = (Statement *)cases.data[i]; | |
| 1765 s = new CaseStatement(0, new IntegerExp(i + 2), s); | |
| 1766 a->push(s); | |
| 1767 } | |
| 1768 | |
| 1769 s = new CompoundStatement(loc, a); | |
| 1770 s = new SwitchStatement(loc, e, s); | |
| 1771 s = s->semantic(sc); | |
| 1772 } | |
| 1773 break; | |
| 1774 } | |
| 1775 | |
| 1776 default: | |
| 1777 error("foreach: %s is not an aggregate type", aggr->type->toChars()); | |
| 1778 break; | |
| 1779 } | |
| 1780 sc->noctor--; | |
| 1781 sc->pop(); | |
| 1782 return s; | |
| 1783 } | |
| 1784 | |
| 1785 int ForeachStatement::hasBreak() | |
| 1786 { | |
| 1787 return TRUE; | |
| 1788 } | |
| 1789 | |
| 1790 int ForeachStatement::hasContinue() | |
| 1791 { | |
| 1792 return TRUE; | |
| 1793 } | |
| 1794 | |
| 1795 int ForeachStatement::usesEH() | |
| 1796 { | |
| 1797 return body->usesEH(); | |
| 1798 } | |
| 1799 | |
| 336 | 1800 int ForeachStatement::blockExit() |
| 1801 { int result = BEfallthru; | |
| 1802 | |
| 1803 if (aggr->canThrow()) | |
| 1804 result |= BEthrow; | |
| 1805 | |
| 1806 if (body) | |
| 1807 { | |
| 1808 result |= body->blockExit() & ~(BEbreak | BEcontinue); | |
| 1809 } | |
| 1810 return result; | |
| 1811 } | |
| 1812 | |
| 159 | 1813 int ForeachStatement::comeFrom() |
| 1814 { | |
| 1815 if (body) | |
| 1816 return body->comeFrom(); | |
| 1817 return FALSE; | |
| 1818 } | |
| 1819 | |
| 1820 void ForeachStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1821 { | |
| 1822 buf->writestring(Token::toChars(op)); | |
| 1823 buf->writestring(" ("); | |
| 1824 for (int i = 0; i < arguments->dim; i++) | |
| 1825 { | |
| 1826 Argument *a = (Argument *)arguments->data[i]; | |
| 1827 if (i) | |
| 1828 buf->writestring(", "); | |
| 1829 if (a->storageClass & STCref) | |
| 1830 buf->writestring((global.params.Dversion == 1) | |
| 1831 ? (char*)"inout " : (char*)"ref "); | |
| 1832 if (a->type) | |
| 1833 a->type->toCBuffer(buf, a->ident, hgs); | |
| 1834 else | |
| 1835 buf->writestring(a->ident->toChars()); | |
| 1836 } | |
| 1837 buf->writestring("; "); | |
| 1838 aggr->toCBuffer(buf, hgs); | |
| 1839 buf->writebyte(')'); | |
| 1840 buf->writenl(); | |
| 1841 buf->writebyte('{'); | |
| 1842 buf->writenl(); | |
| 1843 if (body) | |
| 1844 body->toCBuffer(buf, hgs); | |
| 1845 buf->writebyte('}'); | |
| 1846 buf->writenl(); | |
| 1847 } | |
| 1848 | |
| 1849 /******************************** IfStatement ***************************/ | |
| 1850 | |
| 1851 IfStatement::IfStatement(Loc loc, Argument *arg, Expression *condition, Statement *ifbody, Statement *elsebody) | |
| 1852 : Statement(loc) | |
| 1853 { | |
| 1854 this->arg = arg; | |
| 1855 this->condition = condition; | |
| 1856 this->ifbody = ifbody; | |
| 1857 this->elsebody = elsebody; | |
| 1858 this->match = NULL; | |
| 1859 } | |
| 1860 | |
| 1861 Statement *IfStatement::syntaxCopy() | |
| 1862 { | |
| 1863 Statement *i = NULL; | |
| 1864 if (ifbody) | |
| 1865 i = ifbody->syntaxCopy(); | |
| 1866 | |
| 1867 Statement *e = NULL; | |
| 1868 if (elsebody) | |
| 1869 e = elsebody->syntaxCopy(); | |
| 1870 | |
| 1871 Argument *a = arg ? arg->syntaxCopy() : NULL; | |
| 1872 IfStatement *s = new IfStatement(loc, a, condition->syntaxCopy(), i, e); | |
| 1873 return s; | |
| 1874 } | |
| 1875 | |
| 1876 Statement *IfStatement::semantic(Scope *sc) | |
| 1877 { | |
| 1878 condition = condition->semantic(sc); | |
| 1879 condition = resolveProperties(sc, condition); | |
| 1880 condition = condition->checkToBoolean(); | |
| 1881 | |
| 1882 // If we can short-circuit evaluate the if statement, don't do the | |
| 1883 // semantic analysis of the skipped code. | |
| 1884 // This feature allows a limited form of conditional compilation. | |
| 1885 condition = condition->optimize(WANTflags); | |
| 1886 | |
| 1887 // Evaluate at runtime | |
| 1888 unsigned cs0 = sc->callSuper; | |
| 1889 unsigned cs1; | |
| 1890 | |
| 1891 Scope *scd; | |
| 1892 if (arg) | |
| 1893 { /* Declare arg, which we will set to be the | |
| 1894 * result of condition. | |
| 1895 */ | |
| 1896 ScopeDsymbol *sym = new ScopeDsymbol(); | |
| 1897 sym->parent = sc->scopesym; | |
| 1898 scd = sc->push(sym); | |
| 1899 | |
| 1900 Type *t = arg->type ? arg->type : condition->type; | |
| 1901 match = new VarDeclaration(loc, t, arg->ident, NULL); | |
| 1902 match->noauto = 1; | |
| 1903 match->semantic(scd); | |
| 1904 if (!scd->insert(match)) | |
| 1905 assert(0); | |
| 1906 match->parent = sc->func; | |
| 1907 | |
| 1908 /* Generate: | |
| 1909 * (arg = condition) | |
| 1910 */ | |
| 1911 VarExp *v = new VarExp(0, match); | |
| 1912 condition = new AssignExp(loc, v, condition); | |
| 1913 condition = condition->semantic(scd); | |
| 1914 } | |
| 1915 else | |
| 1916 scd = sc->push(); | |
| 1917 ifbody = ifbody->semantic(scd); | |
| 1918 scd->pop(); | |
| 1919 | |
| 1920 cs1 = sc->callSuper; | |
| 1921 sc->callSuper = cs0; | |
| 1922 if (elsebody) | |
| 1923 elsebody = elsebody->semanticScope(sc, NULL, NULL); | |
| 1924 sc->mergeCallSuper(loc, cs1); | |
| 1925 | |
| 1926 return this; | |
| 1927 } | |
| 1928 | |
| 1929 int IfStatement::usesEH() | |
| 1930 { | |
| 1931 return (ifbody && ifbody->usesEH()) || (elsebody && elsebody->usesEH()); | |
| 1932 } | |
| 1933 | |
| 336 | 1934 int IfStatement::blockExit() |
| 1935 { | |
| 1936 //printf("IfStatement::blockExit(%p)\n", this); | |
| 1937 | |
| 1938 int result = BEnone; | |
| 1939 if (condition->canThrow()) | |
| 1940 result |= BEthrow; | |
| 1941 if (condition->isBool(TRUE)) | |
| 1942 { | |
| 1943 if (ifbody) | |
| 1944 result |= ifbody->blockExit(); | |
| 1945 else | |
| 1946 result |= BEfallthru; | |
| 1947 } | |
| 1948 else if (condition->isBool(FALSE)) | |
| 1949 { | |
| 1950 if (elsebody) | |
| 1951 result |= elsebody->blockExit(); | |
| 1952 else | |
| 1953 result |= BEfallthru; | |
| 1954 } | |
| 1955 else | |
| 1956 { | |
| 1957 if (ifbody) | |
| 1958 result |= ifbody->blockExit(); | |
| 1959 else | |
| 1960 result |= BEfallthru; | |
| 1961 if (elsebody) | |
| 1962 result |= elsebody->blockExit(); | |
| 1963 else | |
| 1964 result |= BEfallthru; | |
| 1965 } | |
| 1966 //printf("IfStatement::blockExit(%p) = x%x\n", this, result); | |
| 1967 return result; | |
| 1968 } | |
| 1969 | |
| 159 | 1970 void IfStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 1971 { | |
| 1972 buf->writestring("if ("); | |
| 1973 if (arg) | |
| 1974 { | |
| 1975 if (arg->type) | |
| 1976 arg->type->toCBuffer(buf, arg->ident, hgs); | |
| 1977 else | |
|
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1978 { buf->writestring("auto "); |
| 159 | 1979 buf->writestring(arg->ident->toChars()); |
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1980 } |
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1981 buf->writestring(" = "); |
| 159 | 1982 } |
| 1983 condition->toCBuffer(buf, hgs); | |
| 1984 buf->writebyte(')'); | |
| 1985 buf->writenl(); | |
| 1986 ifbody->toCBuffer(buf, hgs); | |
| 1987 if (elsebody) | |
| 1988 { buf->writestring("else"); | |
| 1989 buf->writenl(); | |
| 1990 elsebody->toCBuffer(buf, hgs); | |
| 1991 } | |
| 1992 } | |
| 1993 | |
| 1994 /******************************** ConditionalStatement ***************************/ | |
| 1995 | |
| 1996 ConditionalStatement::ConditionalStatement(Loc loc, Condition *condition, Statement *ifbody, Statement *elsebody) | |
| 1997 : Statement(loc) | |
| 1998 { | |
| 1999 this->condition = condition; | |
| 2000 this->ifbody = ifbody; | |
| 2001 this->elsebody = elsebody; | |
| 2002 } | |
| 2003 | |
| 2004 Statement *ConditionalStatement::syntaxCopy() | |
| 2005 { | |
| 2006 Statement *e = NULL; | |
| 2007 if (elsebody) | |
| 2008 e = elsebody->syntaxCopy(); | |
| 2009 ConditionalStatement *s = new ConditionalStatement(loc, | |
| 2010 condition->syntaxCopy(), ifbody->syntaxCopy(), e); | |
| 2011 return s; | |
| 2012 } | |
| 2013 | |
| 2014 Statement *ConditionalStatement::semantic(Scope *sc) | |
| 2015 { | |
| 2016 //printf("ConditionalStatement::semantic()\n"); | |
| 2017 | |
| 2018 // If we can short-circuit evaluate the if statement, don't do the | |
| 2019 // semantic analysis of the skipped code. | |
| 2020 // This feature allows a limited form of conditional compilation. | |
| 2021 if (condition->include(sc, NULL)) | |
| 2022 { | |
| 2023 ifbody = ifbody->semantic(sc); | |
| 2024 return ifbody; | |
| 2025 } | |
| 2026 else | |
| 2027 { | |
| 2028 if (elsebody) | |
| 2029 elsebody = elsebody->semantic(sc); | |
| 2030 return elsebody; | |
| 2031 } | |
| 2032 } | |
| 2033 | |
| 2034 Statements *ConditionalStatement::flatten(Scope *sc) | |
| 2035 { | |
| 2036 Statement *s; | |
| 2037 | |
| 2038 if (condition->include(sc, NULL)) | |
| 2039 s = ifbody; | |
| 2040 else | |
| 2041 s = elsebody; | |
| 2042 | |
| 2043 Statements *a = new Statements(); | |
| 2044 a->push(s); | |
| 2045 return a; | |
| 2046 } | |
| 2047 | |
| 2048 int ConditionalStatement::usesEH() | |
| 2049 { | |
| 2050 return (ifbody && ifbody->usesEH()) || (elsebody && elsebody->usesEH()); | |
| 2051 } | |
| 2052 | |
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2053 int ConditionalStatement::blockExit() |
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2054 { |
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2055 int result = ifbody->blockExit(); |
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2056 if (elsebody) |
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2057 result |= elsebody->blockExit(); |
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2058 return result; |
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2059 } |
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2060 |
| 159 | 2061 void ConditionalStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 2062 { | |
| 2063 condition->toCBuffer(buf, hgs); | |
| 2064 buf->writenl(); | |
| 336 | 2065 buf->writeByte('{'); |
| 2066 buf->writenl(); | |
| 159 | 2067 if (ifbody) |
| 2068 ifbody->toCBuffer(buf, hgs); | |
| 336 | 2069 buf->writeByte('}'); |
| 2070 buf->writenl(); | |
| 159 | 2071 if (elsebody) |
| 2072 { | |
| 2073 buf->writestring("else"); | |
| 2074 buf->writenl(); | |
| 336 | 2075 buf->writeByte('{'); |
| 2076 buf->writenl(); | |
| 159 | 2077 elsebody->toCBuffer(buf, hgs); |
| 336 | 2078 buf->writeByte('}'); |
| 2079 buf->writenl(); | |
| 159 | 2080 } |
| 2081 buf->writenl(); | |
| 2082 } | |
| 2083 | |
| 2084 | |
| 2085 /******************************** PragmaStatement ***************************/ | |
| 2086 | |
| 2087 PragmaStatement::PragmaStatement(Loc loc, Identifier *ident, Expressions *args, Statement *body) | |
| 2088 : Statement(loc) | |
| 2089 { | |
| 2090 this->ident = ident; | |
| 2091 this->args = args; | |
| 2092 this->body = body; | |
| 2093 } | |
| 2094 | |
| 2095 Statement *PragmaStatement::syntaxCopy() | |
| 2096 { | |
| 2097 Statement *b = NULL; | |
| 2098 if (body) | |
| 2099 b = body->syntaxCopy(); | |
| 2100 PragmaStatement *s = new PragmaStatement(loc, | |
| 2101 ident, Expression::arraySyntaxCopy(args), b); | |
| 2102 return s; | |
| 2103 } | |
| 2104 | |
| 2105 Statement *PragmaStatement::semantic(Scope *sc) | |
| 2106 { // Should be merged with PragmaDeclaration | |
| 2107 //printf("PragmaStatement::semantic() %s\n", toChars()); | |
| 2108 //printf("body = %p\n", body); | |
| 2109 if (ident == Id::msg) | |
| 2110 { | |
| 2111 if (args) | |
| 2112 { | |
| 2113 for (size_t i = 0; i < args->dim; i++) | |
| 2114 { | |
| 2115 Expression *e = (Expression *)args->data[i]; | |
| 2116 | |
| 2117 e = e->semantic(sc); | |
| 2118 e = e->optimize(WANTvalue | WANTinterpret); | |
| 2119 if (e->op == TOKstring) | |
| 2120 { | |
| 2121 StringExp *se = (StringExp *)e; | |
|
794
661384d6a936
Fix warnings on x86-64. By fvbommel.
Christian Kamm <kamm incasoftware de>
parents:
765
diff
changeset
|
2122 fprintf(stdmsg, "%.*s", (int)se->len, (char*)se->string); |
| 159 | 2123 } |
| 2124 else | |
| 2125 error("string expected for message, not '%s'", e->toChars()); | |
| 2126 } | |
| 2127 fprintf(stdmsg, "\n"); | |
| 2128 } | |
| 2129 } | |
| 2130 else if (ident == Id::lib) | |
| 2131 { | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
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parents:
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diff
changeset
|
2132 #if 1 |
|
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parents:
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diff
changeset
|
2133 /* Should this be allowed? |
|
bc982f1ad106
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parents:
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diff
changeset
|
2134 */ |
|
bc982f1ad106
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parents:
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diff
changeset
|
2135 error("pragma(lib) not allowed as statement"); |
|
bc982f1ad106
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2136 #else |
| 159 | 2137 if (!args || args->dim != 1) |
| 2138 error("string expected for library name"); | |
| 2139 else | |
| 2140 { | |
| 2141 Expression *e = (Expression *)args->data[0]; | |
| 2142 | |
| 2143 e = e->semantic(sc); | |
| 2144 e = e->optimize(WANTvalue | WANTinterpret); | |
| 2145 args->data[0] = (void *)e; | |
| 2146 if (e->op != TOKstring) | |
| 2147 error("string expected for library name, not '%s'", e->toChars()); | |
| 2148 else if (global.params.verbose) | |
| 2149 { | |
| 2150 StringExp *se = (StringExp *)e; | |
| 2151 char *name = (char *)mem.malloc(se->len + 1); | |
| 2152 memcpy(name, se->string, se->len); | |
| 2153 name[se->len] = 0; | |
| 2154 printf("library %s\n", name); | |
| 2155 mem.free(name); | |
| 2156 } | |
| 2157 } | |
|
846
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
changeset
|
2158 #endif |
| 159 | 2159 } |
|
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03d7c4aac654
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
changeset
|
2160 |
|
03d7c4aac654
SWITCHED TO LLVM 2.5 !
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
908
diff
changeset
|
2161 // LDC |
|
03d7c4aac654
SWITCHED TO LLVM 2.5 !
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
908
diff
changeset
|
2162 else if (ident == Id::allow_inline) |
|
03d7c4aac654
SWITCHED TO LLVM 2.5 !
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
changeset
|
2163 { |
|
03d7c4aac654
SWITCHED TO LLVM 2.5 !
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
908
diff
changeset
|
2164 sc->func->allowInlining = true; |
|
03d7c4aac654
SWITCHED TO LLVM 2.5 !
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
908
diff
changeset
|
2165 } |
|
03d7c4aac654
SWITCHED TO LLVM 2.5 !
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
908
diff
changeset
|
2166 |
| 159 | 2167 else |
| 2168 error("unrecognized pragma(%s)", ident->toChars()); | |
| 2169 | |
| 2170 if (body) | |
| 2171 { | |
| 2172 body = body->semantic(sc); | |
| 2173 } | |
| 2174 return body; | |
| 2175 } | |
| 2176 | |
| 2177 int PragmaStatement::usesEH() | |
| 2178 { | |
| 2179 return body && body->usesEH(); | |
| 2180 } | |
| 2181 | |
| 336 | 2182 int PragmaStatement::blockExit() |
| 2183 { | |
| 2184 int result = BEfallthru; | |
| 2185 #if 0 // currently, no code is generated for Pragma's, so it's just fallthru | |
| 2186 if (arrayExpressionCanThrow(args)) | |
| 2187 result |= BEthrow; | |
| 2188 if (body) | |
| 2189 result |= body->blockExit(); | |
| 2190 #endif | |
| 2191 return result; | |
| 2192 } | |
| 2193 | |
| 159 | 2194 void PragmaStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 2195 { | |
| 2196 buf->writestring("pragma ("); | |
| 2197 buf->writestring(ident->toChars()); | |
| 2198 if (args && args->dim) | |
| 2199 { | |
| 2200 buf->writestring(", "); | |
| 2201 argsToCBuffer(buf, args, hgs); | |
| 2202 } | |
| 2203 buf->writeByte(')'); | |
| 2204 if (body) | |
| 2205 { | |
| 2206 buf->writenl(); | |
| 2207 buf->writeByte('{'); | |
| 2208 buf->writenl(); | |
| 2209 | |
| 2210 body->toCBuffer(buf, hgs); | |
| 2211 | |
| 2212 buf->writeByte('}'); | |
| 2213 buf->writenl(); | |
| 2214 } | |
| 2215 else | |
| 2216 { | |
| 2217 buf->writeByte(';'); | |
| 2218 buf->writenl(); | |
| 2219 } | |
| 2220 } | |
| 2221 | |
| 2222 | |
| 2223 /******************************** StaticAssertStatement ***************************/ | |
| 2224 | |
| 2225 StaticAssertStatement::StaticAssertStatement(StaticAssert *sa) | |
| 2226 : Statement(sa->loc) | |
| 2227 { | |
| 2228 this->sa = sa; | |
| 2229 } | |
| 2230 | |
| 2231 Statement *StaticAssertStatement::syntaxCopy() | |
| 2232 { | |
| 2233 StaticAssertStatement *s = new StaticAssertStatement((StaticAssert *)sa->syntaxCopy(NULL)); | |
| 2234 return s; | |
| 2235 } | |
| 2236 | |
| 2237 Statement *StaticAssertStatement::semantic(Scope *sc) | |
| 2238 { | |
| 2239 sa->semantic2(sc); | |
| 2240 return NULL; | |
| 2241 } | |
| 2242 | |
| 2243 void StaticAssertStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2244 { | |
| 2245 sa->toCBuffer(buf, hgs); | |
| 2246 } | |
| 2247 | |
| 2248 | |
| 2249 /******************************** SwitchStatement ***************************/ | |
| 2250 | |
| 2251 SwitchStatement::SwitchStatement(Loc loc, Expression *c, Statement *b) | |
| 2252 : Statement(loc) | |
| 2253 { | |
| 2254 condition = c; | |
| 2255 body = b; | |
| 2256 sdefault = NULL; | |
| 2257 cases = NULL; | |
| 2258 hasNoDefault = 0; | |
|
664
eef8ac26c66c
Some missed LLVMDC -> LDC.
Christian Kamm <kamm incasoftware de>
parents:
510
diff
changeset
|
2259 // LDC |
| 309 | 2260 enclosinghandler = NULL; |
| 159 | 2261 } |
| 2262 | |
| 2263 Statement *SwitchStatement::syntaxCopy() | |
| 2264 { | |
| 2265 SwitchStatement *s = new SwitchStatement(loc, | |
| 2266 condition->syntaxCopy(), body->syntaxCopy()); | |
| 2267 return s; | |
| 2268 } | |
| 2269 | |
| 2270 Statement *SwitchStatement::semantic(Scope *sc) | |
| 2271 { | |
| 2272 //printf("SwitchStatement::semantic(%p)\n", this); | |
| 2273 assert(!cases); // ensure semantic() is only run once | |
| 2274 | |
| 309 | 2275 enclosinghandler = sc->tfOfTry; |
| 159 | 2276 |
| 2277 condition = condition->semantic(sc); | |
| 2278 condition = resolveProperties(sc, condition); | |
| 2279 if (condition->type->isString()) | |
| 2280 { | |
| 2281 // If it's not an array, cast it to one | |
| 2282 if (condition->type->ty != Tarray) | |
| 2283 { | |
| 2284 condition = condition->implicitCastTo(sc, condition->type->nextOf()->arrayOf()); | |
| 2285 } | |
| 2286 } | |
| 2287 else | |
| 2288 { condition = condition->integralPromotions(sc); | |
| 2289 condition->checkIntegral(); | |
| 2290 } | |
| 2291 condition = condition->optimize(WANTvalue); | |
| 2292 | |
| 2293 sc = sc->push(); | |
| 2294 sc->sbreak = this; | |
| 2295 sc->sw = this; | |
| 2296 | |
| 2297 cases = new Array(); | |
| 2298 sc->noctor++; // BUG: should use Scope::mergeCallSuper() for each case instead | |
| 2299 body = body->semantic(sc); | |
| 2300 sc->noctor--; | |
| 2301 | |
| 2302 // Resolve any goto case's with exp | |
| 2303 for (int i = 0; i < gotoCases.dim; i++) | |
| 2304 { | |
| 2305 GotoCaseStatement *gcs = (GotoCaseStatement *)gotoCases.data[i]; | |
| 2306 | |
| 2307 if (!gcs->exp) | |
| 2308 { | |
| 2309 gcs->error("no case statement following goto case;"); | |
| 2310 break; | |
| 2311 } | |
| 2312 | |
| 2313 for (Scope *scx = sc; scx; scx = scx->enclosing) | |
| 2314 { | |
| 2315 if (!scx->sw) | |
| 2316 continue; | |
| 2317 for (int j = 0; j < scx->sw->cases->dim; j++) | |
| 2318 { | |
| 2319 CaseStatement *cs = (CaseStatement *)scx->sw->cases->data[j]; | |
| 2320 | |
| 2321 if (cs->exp->equals(gcs->exp)) | |
| 2322 { | |
| 2323 gcs->cs = cs; | |
| 2324 goto Lfoundcase; | |
| 2325 } | |
| 2326 } | |
| 2327 } | |
| 2328 gcs->error("case %s not found", gcs->exp->toChars()); | |
| 2329 | |
| 2330 Lfoundcase: | |
| 2331 ; | |
| 2332 } | |
| 2333 | |
| 2334 if (!sc->sw->sdefault) | |
| 2335 { hasNoDefault = 1; | |
| 2336 | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
945
diff
changeset
|
2337 warning("switch statement has no default"); |
| 159 | 2338 |
| 2339 // Generate runtime error if the default is hit | |
| 2340 Statements *a = new Statements(); | |
| 2341 CompoundStatement *cs; | |
| 2342 Statement *s; | |
| 2343 | |
| 2344 if (global.params.useSwitchError) | |
| 2345 s = new SwitchErrorStatement(loc); | |
| 2346 else | |
| 2347 { Expression *e = new HaltExp(loc); | |
| 2348 s = new ExpStatement(loc, e); | |
| 2349 } | |
| 2350 | |
| 2351 a->reserve(4); | |
| 2352 a->push(body); | |
| 901 | 2353 |
| 2354 // LDC needs semantic to be run on break | |
| 2355 Statement *breakstmt = new BreakStatement(loc, NULL); | |
| 2356 breakstmt->semantic(sc); | |
| 2357 a->push(breakstmt); | |
| 2358 | |
| 159 | 2359 sc->sw->sdefault = new DefaultStatement(loc, s); |
| 2360 a->push(sc->sw->sdefault); | |
| 2361 cs = new CompoundStatement(loc, a); | |
| 2362 body = cs; | |
| 2363 } | |
| 2364 | |
| 2365 sc->pop(); | |
| 2366 return this; | |
| 2367 } | |
| 2368 | |
| 2369 int SwitchStatement::hasBreak() | |
| 2370 { | |
| 2371 return TRUE; | |
| 2372 } | |
| 2373 | |
| 2374 int SwitchStatement::usesEH() | |
| 2375 { | |
| 2376 return body ? body->usesEH() : 0; | |
| 2377 } | |
| 2378 | |
| 336 | 2379 int SwitchStatement::blockExit() |
| 2380 { int result = BEnone; | |
| 2381 if (condition->canThrow()) | |
| 2382 result |= BEthrow; | |
| 2383 | |
| 2384 if (body) | |
| 2385 { result |= body->blockExit(); | |
| 2386 if (result & BEbreak) | |
| 2387 { result |= BEfallthru; | |
| 2388 result &= ~BEbreak; | |
| 2389 } | |
| 2390 } | |
| 2391 else | |
| 2392 result |= BEfallthru; | |
| 2393 | |
| 2394 return result; | |
| 2395 } | |
| 2396 | |
| 159 | 2397 void SwitchStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 2398 { | |
| 2399 buf->writestring("switch ("); | |
| 2400 condition->toCBuffer(buf, hgs); | |
| 2401 buf->writebyte(')'); | |
| 2402 buf->writenl(); | |
| 2403 if (body) | |
| 2404 { | |
| 2405 if (!body->isScopeStatement()) | |
| 2406 { buf->writebyte('{'); | |
| 2407 buf->writenl(); | |
| 2408 body->toCBuffer(buf, hgs); | |
| 2409 buf->writebyte('}'); | |
| 2410 buf->writenl(); | |
| 2411 } | |
| 2412 else | |
| 2413 { | |
| 2414 body->toCBuffer(buf, hgs); | |
| 2415 } | |
| 2416 } | |
| 2417 } | |
| 2418 | |
| 2419 /******************************** CaseStatement ***************************/ | |
| 2420 | |
| 2421 CaseStatement::CaseStatement(Loc loc, Expression *exp, Statement *s) | |
| 2422 : Statement(loc) | |
| 2423 { | |
| 2424 this->exp = exp; | |
| 2425 this->statement = s; | |
| 2426 cblock = NULL; | |
| 2427 bodyBB = NULL; | |
|
262
88252a1af660
[svn r280] Fixed a bunch of issues with switch statements. Ended up a bit far reaching...
lindquist
parents:
232
diff
changeset
|
2428 llvmIdx = NULL; |
| 159 | 2429 } |
| 2430 | |
| 2431 Statement *CaseStatement::syntaxCopy() | |
| 2432 { | |
| 2433 CaseStatement *s = new CaseStatement(loc, exp->syntaxCopy(), statement->syntaxCopy()); | |
| 2434 return s; | |
| 2435 } | |
| 2436 | |
| 2437 Statement *CaseStatement::semantic(Scope *sc) | |
| 2438 { SwitchStatement *sw = sc->sw; | |
| 2439 | |
| 2440 //printf("CaseStatement::semantic() %s\n", toChars()); | |
| 2441 exp = exp->semantic(sc); | |
| 2442 if (sw) | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2443 { |
| 159 | 2444 exp = exp->implicitCastTo(sc, sw->condition->type); |
| 2445 exp = exp->optimize(WANTvalue | WANTinterpret); | |
| 2446 if (exp->op != TOKstring && exp->op != TOKint64) | |
| 2447 { | |
| 2448 error("case must be a string or an integral constant, not %s", exp->toChars()); | |
| 2449 exp = new IntegerExp(0); | |
| 2450 } | |
| 2451 | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2452 for (int i = 0; i < sw->cases->dim; i++) |
| 159 | 2453 { |
| 2454 CaseStatement *cs = (CaseStatement *)sw->cases->data[i]; | |
| 2455 | |
| 2456 //printf("comparing '%s' with '%s'\n", exp->toChars(), cs->exp->toChars()); | |
| 2457 if (cs->exp->equals(exp)) | |
| 2458 { error("duplicate case %s in switch statement", exp->toChars()); | |
| 2459 break; | |
| 2460 } | |
| 2461 } | |
| 2462 | |
| 2463 sw->cases->push(this); | |
| 2464 | |
| 2465 // Resolve any goto case's with no exp to this case statement | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2466 for (size_t i = 0; i < sw->gotoCases.dim; i++) |
| 159 | 2467 { |
| 2468 GotoCaseStatement *gcs = (GotoCaseStatement *)sw->gotoCases.data[i]; | |
| 2469 | |
| 2470 if (!gcs->exp) | |
| 2471 { | |
| 2472 gcs->cs = this; | |
| 2473 sw->gotoCases.remove(i); // remove from array | |
| 2474 } | |
| 2475 } | |
| 2476 } | |
| 2477 else | |
| 2478 error("case not in switch statement"); | |
| 2479 statement = statement->semantic(sc); | |
| 2480 return this; | |
| 2481 } | |
| 2482 | |
| 2483 int CaseStatement::compare(Object *obj) | |
| 2484 { | |
| 2485 // Sort cases so we can do an efficient lookup | |
| 2486 CaseStatement *cs2 = (CaseStatement *)(obj); | |
| 2487 | |
| 2488 return exp->compare(cs2->exp); | |
| 2489 } | |
| 2490 | |
| 2491 int CaseStatement::usesEH() | |
| 2492 { | |
| 2493 return statement->usesEH(); | |
| 2494 } | |
| 2495 | |
| 336 | 2496 int CaseStatement::blockExit() |
| 2497 { | |
| 2498 return statement->blockExit(); | |
| 2499 } | |
| 2500 | |
| 159 | 2501 int CaseStatement::comeFrom() |
| 2502 { | |
| 2503 return TRUE; | |
| 2504 } | |
| 2505 | |
| 2506 void CaseStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2507 { | |
| 2508 buf->writestring("case "); | |
| 2509 exp->toCBuffer(buf, hgs); | |
| 2510 buf->writebyte(':'); | |
| 2511 buf->writenl(); | |
| 2512 statement->toCBuffer(buf, hgs); | |
| 2513 } | |
| 2514 | |
| 2515 /******************************** DefaultStatement ***************************/ | |
| 2516 | |
| 2517 DefaultStatement::DefaultStatement(Loc loc, Statement *s) | |
| 2518 : Statement(loc) | |
| 2519 { | |
| 2520 this->statement = s; | |
| 2521 #if IN_GCC | |
| 2522 + cblock = NULL; | |
| 2523 #endif | |
| 2524 bodyBB = NULL; | |
| 2525 } | |
| 2526 | |
| 2527 Statement *DefaultStatement::syntaxCopy() | |
| 2528 { | |
| 2529 DefaultStatement *s = new DefaultStatement(loc, statement->syntaxCopy()); | |
| 2530 return s; | |
| 2531 } | |
| 2532 | |
| 2533 Statement *DefaultStatement::semantic(Scope *sc) | |
| 2534 { | |
| 336 | 2535 //printf("DefaultStatement::semantic()\n"); |
| 159 | 2536 if (sc->sw) |
| 2537 { | |
| 2538 if (sc->sw->sdefault) | |
| 2539 { | |
| 2540 error("switch statement already has a default"); | |
| 2541 } | |
| 2542 sc->sw->sdefault = this; | |
| 2543 } | |
| 2544 else | |
| 2545 error("default not in switch statement"); | |
| 2546 statement = statement->semantic(sc); | |
| 2547 return this; | |
| 2548 } | |
| 2549 | |
| 2550 int DefaultStatement::usesEH() | |
| 2551 { | |
| 2552 return statement->usesEH(); | |
| 2553 } | |
| 2554 | |
| 336 | 2555 int DefaultStatement::blockExit() |
| 2556 { | |
| 2557 return statement->blockExit(); | |
| 2558 } | |
| 2559 | |
| 159 | 2560 int DefaultStatement::comeFrom() |
| 2561 { | |
| 2562 return TRUE; | |
| 2563 } | |
| 2564 | |
| 2565 void DefaultStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2566 { | |
| 2567 buf->writestring("default:\n"); | |
| 2568 statement->toCBuffer(buf, hgs); | |
| 2569 } | |
| 2570 | |
| 2571 /******************************** GotoDefaultStatement ***************************/ | |
| 2572 | |
| 2573 GotoDefaultStatement::GotoDefaultStatement(Loc loc) | |
| 2574 : Statement(loc) | |
| 2575 { | |
| 2576 sw = NULL; | |
| 309 | 2577 enclosinghandler = NULL; |
| 159 | 2578 } |
| 2579 | |
| 2580 Statement *GotoDefaultStatement::syntaxCopy() | |
| 2581 { | |
| 2582 GotoDefaultStatement *s = new GotoDefaultStatement(loc); | |
| 2583 return s; | |
| 2584 } | |
| 2585 | |
| 2586 Statement *GotoDefaultStatement::semantic(Scope *sc) | |
| 2587 { | |
| 309 | 2588 enclosinghandler = sc->tfOfTry; |
| 159 | 2589 sw = sc->sw; |
| 2590 if (!sw) | |
| 2591 error("goto default not in switch statement"); | |
| 2592 return this; | |
| 2593 } | |
| 2594 | |
| 336 | 2595 int GotoDefaultStatement::blockExit() |
| 2596 { | |
| 2597 return BEgoto; | |
| 2598 } | |
| 2599 | |
| 159 | 2600 void GotoDefaultStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 2601 { | |
| 2602 buf->writestring("goto default;\n"); | |
| 2603 } | |
| 2604 | |
| 2605 /******************************** GotoCaseStatement ***************************/ | |
| 2606 | |
| 2607 GotoCaseStatement::GotoCaseStatement(Loc loc, Expression *exp) | |
| 2608 : Statement(loc) | |
| 2609 { | |
| 2610 cs = NULL; | |
| 2611 this->exp = exp; | |
| 309 | 2612 enclosinghandler = NULL; |
| 159 | 2613 sw = NULL; |
| 2614 } | |
| 2615 | |
| 2616 Statement *GotoCaseStatement::syntaxCopy() | |
| 2617 { | |
| 2618 Expression *e = exp ? exp->syntaxCopy() : NULL; | |
| 2619 GotoCaseStatement *s = new GotoCaseStatement(loc, e); | |
| 2620 return s; | |
| 2621 } | |
| 2622 | |
| 2623 Statement *GotoCaseStatement::semantic(Scope *sc) | |
| 2624 { | |
| 309 | 2625 enclosinghandler = sc->tfOfTry; |
| 159 | 2626 if (exp) |
| 2627 exp = exp->semantic(sc); | |
| 2628 | |
| 2629 if (!sc->sw) | |
| 2630 error("goto case not in switch statement"); | |
| 2631 else | |
| 2632 { | |
| 2633 sw = sc->sw; | |
| 2634 sc->sw->gotoCases.push(this); | |
| 2635 if (exp) | |
| 2636 { | |
| 2637 exp = exp->implicitCastTo(sc, sc->sw->condition->type); | |
| 2638 exp = exp->optimize(WANTvalue); | |
| 2639 } | |
| 2640 } | |
| 2641 return this; | |
| 2642 } | |
| 2643 | |
| 336 | 2644 int GotoCaseStatement::blockExit() |
| 2645 { | |
| 2646 return BEgoto; | |
| 2647 } | |
| 2648 | |
| 159 | 2649 void GotoCaseStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 2650 { | |
| 2651 buf->writestring("goto case"); | |
| 2652 if (exp) | |
| 2653 { buf->writebyte(' '); | |
| 2654 exp->toCBuffer(buf, hgs); | |
| 2655 } | |
| 2656 buf->writebyte(';'); | |
| 2657 buf->writenl(); | |
| 2658 } | |
| 2659 | |
| 2660 /******************************** SwitchErrorStatement ***************************/ | |
| 2661 | |
| 2662 SwitchErrorStatement::SwitchErrorStatement(Loc loc) | |
| 2663 : Statement(loc) | |
| 2664 { | |
| 2665 } | |
| 2666 | |
| 336 | 2667 int SwitchErrorStatement::blockExit() |
| 2668 { | |
| 2669 return BEthrow; | |
| 2670 } | |
| 2671 | |
| 159 | 2672 void SwitchErrorStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 2673 { | |
| 2674 buf->writestring("SwitchErrorStatement::toCBuffer()"); | |
| 2675 buf->writenl(); | |
| 2676 } | |
| 2677 | |
| 2678 /******************************** ReturnStatement ***************************/ | |
| 2679 | |
| 2680 ReturnStatement::ReturnStatement(Loc loc, Expression *exp) | |
| 2681 : Statement(loc) | |
| 2682 { | |
| 2683 this->exp = exp; | |
| 309 | 2684 this->enclosinghandler = NULL; |
| 159 | 2685 } |
| 2686 | |
| 2687 Statement *ReturnStatement::syntaxCopy() | |
| 2688 { | |
| 2689 Expression *e = NULL; | |
| 2690 if (exp) | |
| 2691 e = exp->syntaxCopy(); | |
| 2692 ReturnStatement *s = new ReturnStatement(loc, e); | |
| 2693 return s; | |
| 2694 } | |
| 2695 | |
| 2696 Statement *ReturnStatement::semantic(Scope *sc) | |
| 2697 { | |
| 2698 //printf("ReturnStatement::semantic() %s\n", toChars()); | |
| 309 | 2699 this->enclosinghandler = sc->tfOfTry; |
| 159 | 2700 |
| 2701 FuncDeclaration *fd = sc->parent->isFuncDeclaration(); | |
| 2702 Scope *scx = sc; | |
| 2703 int implicit0 = 0; | |
| 2704 | |
| 2705 if (sc->fes) | |
| 2706 { | |
| 2707 // Find scope of function foreach is in | |
| 2708 for (; 1; scx = scx->enclosing) | |
| 2709 { | |
| 2710 assert(scx); | |
| 2711 if (scx->func != fd) | |
| 2712 { fd = scx->func; // fd is now function enclosing foreach | |
| 2713 break; | |
| 2714 } | |
| 2715 } | |
| 2716 } | |
| 2717 | |
| 2718 Type *tret = fd->type->nextOf(); | |
| 2719 if (fd->tintro) | |
| 336 | 2720 /* We'll be implicitly casting the return expression to tintro |
| 2721 */ | |
| 159 | 2722 tret = fd->tintro->nextOf(); |
| 2723 Type *tbret = NULL; | |
| 2724 | |
| 2725 if (tret) | |
| 2726 tbret = tret->toBasetype(); | |
| 2727 | |
| 2728 // main() returns 0, even if it returns void | |
| 2729 if (!exp && (!tbret || tbret->ty == Tvoid) && fd->isMain()) | |
| 2730 { implicit0 = 1; | |
| 2731 exp = new IntegerExp(0); | |
| 2732 } | |
| 2733 | |
| 2734 if (sc->incontract || scx->incontract) | |
| 2735 error("return statements cannot be in contracts"); | |
| 2736 if (sc->tf || scx->tf) | |
| 2737 error("return statements cannot be in finally, scope(exit) or scope(success) bodies"); | |
| 2738 | |
| 2739 if (fd->isCtorDeclaration()) | |
| 2740 { | |
| 2741 // Constructors implicitly do: | |
| 2742 // return this; | |
| 2743 if (exp && exp->op != TOKthis) | |
| 2744 error("cannot return expression from constructor"); | |
| 2745 exp = new ThisExp(0); | |
| 2746 } | |
| 2747 | |
| 2748 if (!exp) | |
| 2749 fd->nrvo_can = 0; | |
| 2750 | |
| 2751 if (exp) | |
| 2752 { | |
| 2753 fd->hasReturnExp |= 1; | |
| 2754 | |
| 2755 exp = exp->semantic(sc); | |
| 2756 exp = resolveProperties(sc, exp); | |
| 2757 exp = exp->optimize(WANTvalue); | |
| 2758 | |
| 2759 if (fd->nrvo_can && exp->op == TOKvar) | |
| 2760 { VarExp *ve = (VarExp *)exp; | |
| 2761 VarDeclaration *v = ve->var->isVarDeclaration(); | |
| 2762 | |
| 2763 if (!v || v->isOut() || v->isRef()) | |
| 2764 fd->nrvo_can = 0; | |
| 2765 else if (fd->nrvo_var == NULL) | |
| 2766 { if (!v->isDataseg() && !v->isParameter() && v->toParent2() == fd) | |
| 2767 fd->nrvo_var = v; | |
| 2768 else | |
| 2769 fd->nrvo_can = 0; | |
| 2770 } | |
| 2771 else if (fd->nrvo_var != v) | |
| 2772 fd->nrvo_can = 0; | |
| 2773 } | |
| 2774 else | |
| 2775 fd->nrvo_can = 0; | |
| 2776 | |
| 2777 if (fd->returnLabel && tbret->ty != Tvoid) | |
| 2778 { | |
| 2779 } | |
| 2780 else if (fd->inferRetType) | |
| 2781 { | |
| 2782 if (fd->type->nextOf()) | |
| 2783 { | |
| 2784 if (!exp->type->equals(fd->type->nextOf())) | |
| 2785 error("mismatched function return type inference of %s and %s", | |
| 2786 exp->type->toChars(), fd->type->nextOf()->toChars()); | |
| 2787 } | |
| 2788 else | |
| 2789 { | |
| 2790 fd->type->next = exp->type; | |
| 2791 fd->type = fd->type->semantic(loc, sc); | |
| 2792 if (!fd->tintro) | |
| 2793 { tret = fd->type->nextOf(); | |
| 2794 tbret = tret->toBasetype(); | |
| 2795 } | |
| 2796 } | |
| 2797 } | |
| 2798 else if (tbret->ty != Tvoid) | |
| 2799 { | |
| 2800 exp = exp->implicitCastTo(sc, tret); | |
| 2801 } | |
| 2802 } | |
| 2803 else if (fd->inferRetType) | |
| 2804 { | |
| 2805 if (fd->type->nextOf()) | |
| 2806 { | |
| 2807 if (fd->type->nextOf()->ty != Tvoid) | |
| 2808 error("mismatched function return type inference of void and %s", | |
| 2809 fd->type->nextOf()->toChars()); | |
| 2810 } | |
| 2811 else | |
| 2812 { | |
| 2813 fd->type->next = Type::tvoid; | |
| 2814 fd->type = fd->type->semantic(loc, sc); | |
| 2815 if (!fd->tintro) | |
| 2816 { tret = Type::tvoid; | |
| 2817 tbret = tret; | |
| 2818 } | |
| 2819 } | |
| 2820 } | |
| 2821 else if (tbret->ty != Tvoid) // if non-void return | |
| 2822 error("return expression expected"); | |
| 2823 | |
| 2824 if (sc->fes) | |
| 2825 { | |
| 2826 Statement *s; | |
| 2827 | |
| 2828 if (exp && !implicit0) | |
| 2829 { | |
| 2830 exp = exp->implicitCastTo(sc, tret); | |
| 2831 } | |
| 2832 if (!exp || exp->op == TOKint64 || exp->op == TOKfloat64 || | |
| 2833 exp->op == TOKimaginary80 || exp->op == TOKcomplex80 || | |
| 2834 exp->op == TOKthis || exp->op == TOKsuper || exp->op == TOKnull || | |
| 2835 exp->op == TOKstring) | |
| 2836 { | |
| 2837 sc->fes->cases.push(this); | |
|
846
bc982f1ad106
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2838 // Construct: return cases.dim+1; |
| 159 | 2839 s = new ReturnStatement(0, new IntegerExp(sc->fes->cases.dim + 1)); |
| 2840 } | |
| 2841 else if (fd->type->nextOf()->toBasetype() == Type::tvoid) | |
| 2842 { | |
| 2843 s = new ReturnStatement(0, NULL); | |
| 2844 sc->fes->cases.push(s); | |
| 2845 | |
| 2846 // Construct: { exp; return cases.dim + 1; } | |
|
846
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Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2847 Statement *s1 = new ExpStatement(loc, exp); |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2848 Statement *s2 = new ReturnStatement(0, new IntegerExp(sc->fes->cases.dim + 1)); |
| 159 | 2849 s = new CompoundStatement(loc, s1, s2); |
| 2850 } | |
| 2851 else | |
| 2852 { | |
| 2853 // Construct: return vresult; | |
| 2854 if (!fd->vresult) | |
|
846
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Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2855 { // Declare vresult |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2856 VarDeclaration *v = new VarDeclaration(loc, tret, Id::result, NULL); |
| 159 | 2857 v->noauto = 1; |
| 2858 v->semantic(scx); | |
| 2859 if (!scx->insert(v)) | |
| 2860 assert(0); | |
| 2861 v->parent = fd; | |
| 2862 fd->vresult = v; | |
| 2863 } | |
| 2864 | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2865 s = new ReturnStatement(0, new VarExp(0, fd->vresult)); |
| 159 | 2866 sc->fes->cases.push(s); |
| 2867 | |
| 2868 // Construct: { vresult = exp; return cases.dim + 1; } | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2869 exp = new AssignExp(loc, new VarExp(0, fd->vresult), exp); |
| 159 | 2870 exp = exp->semantic(sc); |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2871 Statement *s1 = new ExpStatement(loc, exp); |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2872 Statement *s2 = new ReturnStatement(0, new IntegerExp(sc->fes->cases.dim + 1)); |
| 159 | 2873 s = new CompoundStatement(loc, s1, s2); |
| 2874 } | |
| 2875 return s; | |
| 2876 } | |
| 2877 | |
| 2878 if (exp) | |
| 2879 { | |
| 2880 if (fd->returnLabel && tbret->ty != Tvoid) | |
| 2881 { | |
| 2882 assert(fd->vresult); | |
| 2883 VarExp *v = new VarExp(0, fd->vresult); | |
| 2884 | |
| 2885 exp = new AssignExp(loc, v, exp); | |
| 2886 exp = exp->semantic(sc); | |
| 2887 } | |
| 2888 //exp->dump(0); | |
| 2889 //exp->print(); | |
| 2890 exp->checkEscape(); | |
| 2891 } | |
| 2892 | |
| 2893 /* BUG: need to issue an error on: | |
| 2894 * this | |
| 2895 * { if (x) return; | |
| 2896 * super(); | |
| 2897 * } | |
| 2898 */ | |
| 2899 | |
| 2900 if (sc->callSuper & CSXany_ctor && | |
| 2901 !(sc->callSuper & (CSXthis_ctor | CSXsuper_ctor))) | |
| 2902 error("return without calling constructor"); | |
| 2903 | |
| 2904 sc->callSuper |= CSXreturn; | |
| 2905 | |
| 2906 // See if all returns are instead to be replaced with a goto returnLabel; | |
| 2907 if (fd->returnLabel) | |
| 2908 { | |
| 2909 GotoStatement *gs = new GotoStatement(loc, Id::returnLabel); | |
| 2910 | |
| 2911 gs->label = fd->returnLabel; | |
| 2912 if (exp) | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2913 { /* Replace: return exp; |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2914 * with: exp; goto returnLabel; |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2915 */ |
|
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
2916 Statement *s = new ExpStatement(0, exp); |
| 159 | 2917 return new CompoundStatement(loc, s, gs); |
| 2918 } | |
| 2919 return gs; | |
| 2920 } | |
| 2921 | |
| 2922 if (exp && tbret->ty == Tvoid && !fd->isMain()) | |
| 336 | 2923 { |
| 2924 /* Replace: | |
| 2925 * return exp; | |
| 2926 * with: | |
| 2927 * exp; return; | |
| 2928 */ | |
| 2929 Statement *s = new ExpStatement(loc, exp); | |
| 159 | 2930 loc = 0; |
| 2931 exp = NULL; | |
| 2932 return new CompoundStatement(loc, s, this); | |
| 2933 } | |
| 2934 | |
| 2935 return this; | |
| 2936 } | |
| 2937 | |
| 336 | 2938 int ReturnStatement::blockExit() |
| 2939 { int result = BEreturn; | |
| 2940 | |
| 2941 if (exp && exp->canThrow()) | |
| 2942 result |= BEthrow; | |
| 2943 return result; | |
| 2944 } | |
| 2945 | |
| 159 | 2946 void ReturnStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 2947 { | |
| 2948 buf->printf("return "); | |
| 2949 if (exp) | |
| 2950 exp->toCBuffer(buf, hgs); | |
| 2951 buf->writeByte(';'); | |
| 2952 buf->writenl(); | |
| 2953 } | |
| 2954 | |
| 2955 /******************************** BreakStatement ***************************/ | |
| 2956 | |
| 2957 BreakStatement::BreakStatement(Loc loc, Identifier *ident) | |
| 2958 : Statement(loc) | |
| 2959 { | |
| 2960 this->ident = ident; | |
| 309 | 2961 this->enclosinghandler = NULL; |
| 159 | 2962 } |
| 2963 | |
| 2964 Statement *BreakStatement::syntaxCopy() | |
| 2965 { | |
| 2966 BreakStatement *s = new BreakStatement(loc, ident); | |
| 2967 return s; | |
| 2968 } | |
| 2969 | |
| 2970 Statement *BreakStatement::semantic(Scope *sc) | |
| 2971 { | |
| 336 | 2972 //printf("BreakStatement::semantic()\n"); |
| 309 | 2973 enclosinghandler = sc->tfOfTry; |
| 159 | 2974 // If: |
| 2975 // break Identifier; | |
| 2976 if (ident) | |
| 2977 { | |
| 2978 Scope *scx; | |
| 2979 FuncDeclaration *thisfunc = sc->func; | |
| 2980 | |
| 2981 for (scx = sc; scx; scx = scx->enclosing) | |
| 2982 { | |
| 2983 LabelStatement *ls; | |
| 2984 | |
| 2985 if (scx->func != thisfunc) // if in enclosing function | |
| 2986 { | |
| 2987 if (sc->fes) // if this is the body of a foreach | |
| 2988 { | |
| 2989 /* Post this statement to the fes, and replace | |
| 2990 * it with a return value that caller will put into | |
| 2991 * a switch. Caller will figure out where the break | |
| 2992 * label actually is. | |
| 2993 * Case numbers start with 2, not 0, as 0 is continue | |
| 2994 * and 1 is break. | |
| 2995 */ | |
| 2996 Statement *s; | |
| 2997 sc->fes->cases.push(this); | |
| 2998 s = new ReturnStatement(0, new IntegerExp(sc->fes->cases.dim + 1)); | |
| 2999 return s; | |
| 3000 } | |
| 3001 break; // can't break to it | |
| 3002 } | |
| 3003 | |
| 3004 ls = scx->slabel; | |
| 3005 if (ls && ls->ident == ident) | |
| 3006 { | |
| 3007 Statement *s = ls->statement; | |
| 3008 | |
| 3009 if (!s->hasBreak()) | |
| 3010 error("label '%s' has no break", ident->toChars()); | |
| 3011 if (ls->tf != sc->tf) | |
| 3012 error("cannot break out of finally block"); | |
| 3013 | |
| 3014 this->target = ls; | |
| 3015 return this; | |
| 3016 } | |
| 3017 } | |
| 3018 error("enclosing label '%s' for break not found", ident->toChars()); | |
| 3019 } | |
| 3020 else if (!sc->sbreak) | |
| 3021 { | |
| 3022 if (sc->fes) | |
| 3023 { Statement *s; | |
| 3024 | |
| 3025 // Replace break; with return 1; | |
| 3026 s = new ReturnStatement(0, new IntegerExp(1)); | |
| 3027 return s; | |
| 3028 } | |
| 3029 error("break is not inside a loop or switch"); | |
| 3030 } | |
| 3031 return this; | |
| 3032 } | |
| 3033 | |
| 336 | 3034 int BreakStatement::blockExit() |
| 3035 { | |
| 3036 //printf("BreakStatement::blockExit(%p) = x%x\n", this, ident ? BEgoto : BEbreak); | |
| 3037 return ident ? BEgoto : BEbreak; | |
| 3038 } | |
| 3039 | |
| 159 | 3040 void BreakStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 3041 { | |
| 3042 buf->writestring("break"); | |
| 3043 if (ident) | |
| 3044 { buf->writebyte(' '); | |
| 3045 buf->writestring(ident->toChars()); | |
| 3046 } | |
| 3047 buf->writebyte(';'); | |
| 3048 buf->writenl(); | |
| 3049 } | |
| 3050 | |
| 3051 /******************************** ContinueStatement ***************************/ | |
| 3052 | |
| 3053 ContinueStatement::ContinueStatement(Loc loc, Identifier *ident) | |
| 3054 : Statement(loc) | |
| 3055 { | |
| 3056 this->ident = ident; | |
| 309 | 3057 this->enclosinghandler = NULL; |
| 159 | 3058 } |
| 3059 | |
| 3060 Statement *ContinueStatement::syntaxCopy() | |
| 3061 { | |
| 3062 ContinueStatement *s = new ContinueStatement(loc, ident); | |
| 3063 return s; | |
| 3064 } | |
| 3065 | |
| 3066 Statement *ContinueStatement::semantic(Scope *sc) | |
| 3067 { | |
| 309 | 3068 enclosinghandler = sc->tfOfTry; |
| 159 | 3069 //printf("ContinueStatement::semantic() %p\n", this); |
| 3070 if (ident) | |
| 3071 { | |
| 3072 Scope *scx; | |
| 3073 FuncDeclaration *thisfunc = sc->func; | |
| 3074 | |
| 3075 for (scx = sc; scx; scx = scx->enclosing) | |
| 3076 { | |
| 3077 LabelStatement *ls; | |
| 3078 | |
| 3079 if (scx->func != thisfunc) // if in enclosing function | |
| 3080 { | |
| 3081 if (sc->fes) // if this is the body of a foreach | |
| 3082 { | |
| 3083 for (; scx; scx = scx->enclosing) | |
| 3084 { | |
| 3085 ls = scx->slabel; | |
| 3086 if (ls && ls->ident == ident && ls->statement == sc->fes) | |
| 3087 { | |
| 3088 // Replace continue ident; with return 0; | |
| 3089 return new ReturnStatement(0, new IntegerExp(0)); | |
| 3090 } | |
| 3091 } | |
| 3092 | |
| 3093 /* Post this statement to the fes, and replace | |
| 3094 * it with a return value that caller will put into | |
| 3095 * a switch. Caller will figure out where the break | |
| 3096 * label actually is. | |
| 3097 * Case numbers start with 2, not 0, as 0 is continue | |
| 3098 * and 1 is break. | |
| 3099 */ | |
| 3100 Statement *s; | |
| 3101 sc->fes->cases.push(this); | |
| 3102 s = new ReturnStatement(0, new IntegerExp(sc->fes->cases.dim + 1)); | |
| 3103 return s; | |
| 3104 } | |
| 3105 break; // can't continue to it | |
| 3106 } | |
| 3107 | |
| 3108 ls = scx->slabel; | |
| 3109 if (ls && ls->ident == ident) | |
| 3110 { | |
| 3111 Statement *s = ls->statement; | |
| 3112 | |
| 3113 if (!s->hasContinue()) | |
| 3114 error("label '%s' has no continue", ident->toChars()); | |
| 3115 if (ls->tf != sc->tf) | |
| 3116 error("cannot continue out of finally block"); | |
| 3117 | |
| 3118 this->target = ls; | |
| 3119 return this; | |
| 3120 } | |
| 3121 } | |
| 3122 error("enclosing label '%s' for continue not found", ident->toChars()); | |
| 3123 } | |
| 3124 else if (!sc->scontinue) | |
| 3125 { | |
| 3126 if (sc->fes) | |
| 3127 { Statement *s; | |
| 3128 | |
| 3129 // Replace continue; with return 0; | |
| 3130 s = new ReturnStatement(0, new IntegerExp(0)); | |
| 3131 return s; | |
| 3132 } | |
| 3133 error("continue is not inside a loop"); | |
| 3134 } | |
| 3135 return this; | |
| 3136 } | |
| 3137 | |
| 336 | 3138 int ContinueStatement::blockExit() |
| 3139 { | |
| 3140 return ident ? BEgoto : BEcontinue; | |
| 3141 } | |
| 3142 | |
| 159 | 3143 void ContinueStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 3144 { | |
| 3145 buf->writestring("continue"); | |
| 3146 if (ident) | |
| 3147 { buf->writebyte(' '); | |
| 3148 buf->writestring(ident->toChars()); | |
| 3149 } | |
| 3150 buf->writebyte(';'); | |
| 3151 buf->writenl(); | |
| 3152 } | |
| 3153 | |
| 3154 /******************************** SynchronizedStatement ***************************/ | |
| 3155 | |
| 3156 SynchronizedStatement::SynchronizedStatement(Loc loc, Expression *exp, Statement *body) | |
| 3157 : Statement(loc) | |
| 3158 { | |
| 3159 this->exp = exp; | |
| 3160 this->body = body; | |
| 3161 this->esync = NULL; | |
|
310
d20cf0dec9c1
[svn r331] Fixed, forgot to default initialize the SynchronizedStatement enclosinghandler.
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parents:
309
diff
changeset
|
3162 this->enclosinghandler = NULL; |
|
664
eef8ac26c66c
Some missed LLVMDC -> LDC.
Christian Kamm <kamm incasoftware de>
parents:
510
diff
changeset
|
3163 // LDC |
| 309 | 3164 this->llsync = NULL; |
| 159 | 3165 } |
| 3166 | |
| 3167 SynchronizedStatement::SynchronizedStatement(Loc loc, elem *esync, Statement *body) | |
| 3168 : Statement(loc) | |
| 3169 { | |
| 3170 this->exp = NULL; | |
| 3171 this->body = body; | |
| 3172 this->esync = esync; | |
|
310
d20cf0dec9c1
[svn r331] Fixed, forgot to default initialize the SynchronizedStatement enclosinghandler.
lindquist
parents:
309
diff
changeset
|
3173 this->enclosinghandler = NULL; |
|
664
eef8ac26c66c
Some missed LLVMDC -> LDC.
Christian Kamm <kamm incasoftware de>
parents:
510
diff
changeset
|
3174 // LDC |
| 309 | 3175 this->llsync = NULL; |
| 159 | 3176 } |
| 3177 | |
| 3178 Statement *SynchronizedStatement::syntaxCopy() | |
| 3179 { | |
| 3180 Expression *e = exp ? exp->syntaxCopy() : NULL; | |
| 3181 SynchronizedStatement *s = new SynchronizedStatement(loc, e, body ? body->syntaxCopy() : NULL); | |
| 3182 return s; | |
| 3183 } | |
| 3184 | |
| 3185 Statement *SynchronizedStatement::semantic(Scope *sc) | |
| 3186 { | |
| 3187 if (exp) | |
| 3188 { ClassDeclaration *cd; | |
| 3189 | |
| 3190 exp = exp->semantic(sc); | |
| 3191 exp = resolveProperties(sc, exp); | |
| 3192 cd = exp->type->isClassHandle(); | |
| 3193 if (!cd) | |
| 3194 error("can only synchronize on class objects, not '%s'", exp->type->toChars()); | |
| 3195 else if (cd->isInterfaceDeclaration()) | |
| 3196 { Type *t = new TypeIdentifier(0, Id::Object); | |
| 3197 | |
| 3198 t = t->semantic(0, sc); | |
| 3199 exp = new CastExp(loc, exp, t); | |
| 3200 exp = exp->semantic(sc); | |
| 3201 } | |
| 3202 } | |
| 3203 if (body) | |
| 309 | 3204 { |
| 3205 enclosinghandler = sc->tfOfTry; | |
| 3206 sc->tfOfTry = new EnclosingSynchro(this); | |
| 3207 body = body->semantic(sc); | |
| 3208 sc->tfOfTry = enclosinghandler; | |
| 3209 } | |
| 159 | 3210 return this; |
| 3211 } | |
| 3212 | |
| 3213 int SynchronizedStatement::hasBreak() | |
| 3214 { | |
| 3215 return FALSE; //TRUE; | |
| 3216 } | |
| 3217 | |
| 3218 int SynchronizedStatement::hasContinue() | |
| 3219 { | |
| 3220 return FALSE; //TRUE; | |
| 3221 } | |
| 3222 | |
| 3223 int SynchronizedStatement::usesEH() | |
| 3224 { | |
| 3225 return TRUE; | |
| 3226 } | |
| 3227 | |
| 336 | 3228 int SynchronizedStatement::blockExit() |
| 3229 { | |
| 3230 return body ? body->blockExit() : BEfallthru; | |
| 3231 } | |
| 3232 | |
| 159 | 3233 void SynchronizedStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 3234 { | |
| 3235 buf->writestring("synchronized"); | |
| 3236 if (exp) | |
| 3237 { buf->writebyte('('); | |
| 3238 exp->toCBuffer(buf, hgs); | |
| 3239 buf->writebyte(')'); | |
| 3240 } | |
| 3241 if (body) | |
| 3242 { | |
| 3243 buf->writebyte(' '); | |
| 3244 body->toCBuffer(buf, hgs); | |
| 3245 } | |
| 3246 } | |
| 3247 | |
| 3248 /******************************** WithStatement ***************************/ | |
| 3249 | |
| 3250 WithStatement::WithStatement(Loc loc, Expression *exp, Statement *body) | |
| 3251 : Statement(loc) | |
| 3252 { | |
| 3253 this->exp = exp; | |
| 3254 this->body = body; | |
| 3255 wthis = NULL; | |
| 3256 } | |
| 3257 | |
| 3258 Statement *WithStatement::syntaxCopy() | |
| 3259 { | |
| 3260 WithStatement *s = new WithStatement(loc, exp->syntaxCopy(), body ? body->syntaxCopy() : NULL); | |
| 3261 return s; | |
| 3262 } | |
| 3263 | |
| 3264 Statement *WithStatement::semantic(Scope *sc) | |
| 3265 { ScopeDsymbol *sym; | |
| 3266 Initializer *init; | |
| 3267 | |
| 3268 //printf("WithStatement::semantic()\n"); | |
| 3269 exp = exp->semantic(sc); | |
| 3270 exp = resolveProperties(sc, exp); | |
| 3271 if (exp->op == TOKimport) | |
| 3272 { ScopeExp *es = (ScopeExp *)exp; | |
| 3273 | |
| 3274 sym = es->sds; | |
| 3275 } | |
| 3276 else if (exp->op == TOKtype) | |
| 3277 { TypeExp *es = (TypeExp *)exp; | |
| 3278 | |
| 3279 sym = es->type->toDsymbol(sc)->isScopeDsymbol(); | |
| 3280 if (!sym) | |
| 3281 { error("%s has no members", es->toChars()); | |
| 3282 body = body->semantic(sc); | |
| 3283 return this; | |
| 3284 } | |
| 3285 } | |
| 3286 else | |
| 3287 { Type *t = exp->type; | |
| 3288 | |
| 3289 assert(t); | |
| 3290 t = t->toBasetype(); | |
| 3291 if (t->isClassHandle()) | |
| 3292 { | |
| 3293 init = new ExpInitializer(loc, exp); | |
| 3294 wthis = new VarDeclaration(loc, exp->type, Id::withSym, init); | |
| 3295 wthis->semantic(sc); | |
| 3296 | |
| 3297 sym = new WithScopeSymbol(this); | |
| 3298 sym->parent = sc->scopesym; | |
| 3299 } | |
| 3300 else if (t->ty == Tstruct) | |
| 3301 { | |
| 3302 Expression *e = exp->addressOf(sc); | |
| 3303 init = new ExpInitializer(loc, e); | |
| 3304 wthis = new VarDeclaration(loc, e->type, Id::withSym, init); | |
| 3305 wthis->semantic(sc); | |
| 3306 sym = new WithScopeSymbol(this); | |
| 3307 sym->parent = sc->scopesym; | |
| 3308 } | |
| 3309 else | |
| 3310 { error("with expressions must be class objects, not '%s'", exp->type->toChars()); | |
| 3311 return NULL; | |
| 3312 } | |
| 3313 } | |
| 3314 sc = sc->push(sym); | |
| 3315 | |
| 3316 if (body) | |
| 3317 body = body->semantic(sc); | |
| 3318 | |
| 3319 sc->pop(); | |
| 3320 | |
| 3321 return this; | |
| 3322 } | |
| 3323 | |
| 3324 void WithStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3325 { | |
| 3326 buf->writestring("with ("); | |
| 3327 exp->toCBuffer(buf, hgs); | |
| 3328 buf->writestring(")\n"); | |
| 3329 if (body) | |
| 3330 body->toCBuffer(buf, hgs); | |
| 3331 } | |
| 3332 | |
| 3333 int WithStatement::usesEH() | |
| 3334 { | |
| 3335 return body ? body->usesEH() : 0; | |
| 3336 } | |
| 3337 | |
| 336 | 3338 int WithStatement::blockExit() |
| 3339 { | |
| 3340 int result = BEnone; | |
| 3341 if (exp->canThrow()) | |
| 3342 result = BEthrow; | |
| 3343 if (body) | |
| 3344 result |= body->blockExit(); | |
| 3345 else | |
| 3346 result |= BEfallthru; | |
| 3347 return result; | |
| 3348 } | |
| 3349 | |
| 159 | 3350 /******************************** TryCatchStatement ***************************/ |
| 3351 | |
| 3352 TryCatchStatement::TryCatchStatement(Loc loc, Statement *body, Array *catches) | |
| 3353 : Statement(loc) | |
| 3354 { | |
| 3355 this->body = body; | |
| 3356 this->catches = catches; | |
| 3357 } | |
| 3358 | |
| 3359 Statement *TryCatchStatement::syntaxCopy() | |
| 3360 { | |
| 3361 Array *a = new Array(); | |
| 3362 a->setDim(catches->dim); | |
| 3363 for (int i = 0; i < a->dim; i++) | |
| 3364 { Catch *c; | |
| 3365 | |
| 3366 c = (Catch *)catches->data[i]; | |
| 3367 c = c->syntaxCopy(); | |
| 3368 a->data[i] = c; | |
| 3369 } | |
| 3370 TryCatchStatement *s = new TryCatchStatement(loc, body->syntaxCopy(), a); | |
| 3371 return s; | |
| 3372 } | |
| 3373 | |
| 3374 Statement *TryCatchStatement::semantic(Scope *sc) | |
| 3375 { | |
| 3376 body = body->semanticScope(sc, NULL /*this*/, NULL); | |
| 3377 | |
| 336 | 3378 /* Even if body is NULL, still do semantic analysis on catches |
| 3379 */ | |
| 3380 for (size_t i = 0; i < catches->dim; i++) | |
| 3381 { Catch *c = (Catch *)catches->data[i]; | |
| 159 | 3382 c->semantic(sc); |
| 3383 | |
| 3384 // Determine if current catch 'hides' any previous catches | |
| 336 | 3385 for (size_t j = 0; j < i; j++) |
| 159 | 3386 { Catch *cj = (Catch *)catches->data[j]; |
| 3387 char *si = c->loc.toChars(); | |
| 3388 char *sj = cj->loc.toChars(); | |
| 3389 | |
| 3390 if (c->type->toBasetype()->implicitConvTo(cj->type->toBasetype())) | |
| 3391 error("catch at %s hides catch at %s", sj, si); | |
| 3392 } | |
| 3393 } | |
| 3394 return this; | |
| 3395 } | |
| 3396 | |
| 3397 int TryCatchStatement::hasBreak() | |
| 3398 { | |
| 3399 return FALSE; //TRUE; | |
| 3400 } | |
| 3401 | |
| 3402 int TryCatchStatement::usesEH() | |
| 3403 { | |
| 3404 return TRUE; | |
| 3405 } | |
| 3406 | |
| 336 | 3407 int TryCatchStatement::blockExit() |
| 3408 { int result; | |
| 3409 | |
| 3410 assert(body); | |
| 3411 result = body->blockExit(); | |
| 3412 | |
| 3413 for (size_t i = 0; i < catches->dim; i++) | |
| 3414 { | |
| 3415 Catch *c = (Catch *)catches->data[i]; | |
| 3416 result |= c->blockExit(); | |
| 3417 } | |
| 3418 return result; | |
| 3419 } | |
| 3420 | |
| 159 | 3421 void TryCatchStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 3422 { | |
| 3423 buf->writestring("try"); | |
| 3424 buf->writenl(); | |
| 3425 if (body) | |
| 3426 body->toCBuffer(buf, hgs); | |
| 336 | 3427 for (size_t i = 0; i < catches->dim; i++) |
| 159 | 3428 { |
| 3429 Catch *c = (Catch *)catches->data[i]; | |
| 3430 c->toCBuffer(buf, hgs); | |
| 3431 } | |
| 3432 } | |
| 3433 | |
| 3434 /******************************** Catch ***************************/ | |
| 3435 | |
| 3436 Catch::Catch(Loc loc, Type *t, Identifier *id, Statement *handler) | |
| 3437 { | |
| 3438 //printf("Catch(%s, loc = %s)\n", id->toChars(), loc.toChars()); | |
| 3439 this->loc = loc; | |
| 3440 this->type = t; | |
| 3441 this->ident = id; | |
| 3442 this->handler = handler; | |
| 3443 var = NULL; | |
| 3444 } | |
| 3445 | |
| 3446 Catch *Catch::syntaxCopy() | |
| 3447 { | |
| 3448 Catch *c = new Catch(loc, | |
| 3449 (type ? type->syntaxCopy() : NULL), | |
| 3450 ident, | |
| 3451 (handler ? handler->syntaxCopy() : NULL)); | |
| 3452 return c; | |
| 3453 } | |
| 3454 | |
| 3455 void Catch::semantic(Scope *sc) | |
| 3456 { ScopeDsymbol *sym; | |
| 3457 | |
| 3458 //printf("Catch::semantic(%s)\n", ident->toChars()); | |
| 3459 | |
| 3460 #ifndef IN_GCC | |
| 3461 if (sc->tf) | |
| 3462 { | |
| 3463 /* This is because the _d_local_unwind() gets the stack munged | |
| 3464 * up on this. The workaround is to place any try-catches into | |
| 3465 * a separate function, and call that. | |
| 3466 * To fix, have the compiler automatically convert the finally | |
| 3467 * body into a nested function. | |
| 3468 */ | |
| 3469 error(loc, "cannot put catch statement inside finally block"); | |
| 3470 } | |
| 3471 #endif | |
| 3472 | |
| 3473 sym = new ScopeDsymbol(); | |
| 3474 sym->parent = sc->scopesym; | |
| 3475 sc = sc->push(sym); | |
| 3476 | |
| 3477 if (!type) | |
| 3478 type = new TypeIdentifier(0, Id::Object); | |
| 3479 type = type->semantic(loc, sc); | |
| 3480 if (!type->toBasetype()->isClassHandle()) | |
| 3481 error("can only catch class objects, not '%s'", type->toChars()); | |
| 3482 else if (ident) | |
| 3483 { | |
| 3484 var = new VarDeclaration(loc, type, ident, NULL); | |
| 3485 var->parent = sc->parent; | |
| 3486 sc->insert(var); | |
| 3487 } | |
| 3488 handler = handler->semantic(sc); | |
| 3489 | |
| 3490 sc->pop(); | |
| 3491 } | |
| 3492 | |
| 336 | 3493 int Catch::blockExit() |
| 3494 { | |
| 3495 return handler ? handler->blockExit() : BEfallthru; | |
| 3496 } | |
| 3497 | |
| 159 | 3498 void Catch::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 3499 { | |
| 3500 buf->writestring("catch"); | |
| 3501 if (type) | |
| 3502 { buf->writebyte('('); | |
| 3503 type->toCBuffer(buf, ident, hgs); | |
| 3504 buf->writebyte(')'); | |
| 3505 } | |
| 3506 buf->writenl(); | |
| 3507 buf->writebyte('{'); | |
| 3508 buf->writenl(); | |
| 336 | 3509 if (handler) |
| 3510 handler->toCBuffer(buf, hgs); | |
| 159 | 3511 buf->writebyte('}'); |
| 3512 buf->writenl(); | |
| 3513 } | |
| 3514 | |
| 3515 /****************************** TryFinallyStatement ***************************/ | |
| 3516 | |
| 3517 TryFinallyStatement::TryFinallyStatement(Loc loc, Statement *body, Statement *finalbody) | |
| 3518 : Statement(loc) | |
| 3519 { | |
| 3520 this->body = body; | |
| 3521 this->finalbody = finalbody; | |
| 309 | 3522 this->enclosinghandler = NULL; |
| 159 | 3523 } |
| 3524 | |
| 3525 Statement *TryFinallyStatement::syntaxCopy() | |
| 3526 { | |
| 3527 TryFinallyStatement *s = new TryFinallyStatement(loc, | |
| 3528 body->syntaxCopy(), finalbody->syntaxCopy()); | |
| 3529 return s; | |
| 3530 } | |
| 3531 | |
| 3532 Statement *TryFinallyStatement::semantic(Scope *sc) | |
| 3533 { | |
| 3534 //printf("TryFinallyStatement::semantic()\n"); | |
| 3535 | |
| 309 | 3536 enclosinghandler = sc->tfOfTry; |
| 3537 sc->tfOfTry = new EnclosingTryFinally(this); | |
| 159 | 3538 body = body->semantic(sc); |
| 309 | 3539 sc->tfOfTry = enclosinghandler; |
| 159 | 3540 |
| 3541 sc = sc->push(); | |
| 3542 sc->tf = this; | |
| 3543 sc->sbreak = NULL; | |
| 3544 sc->scontinue = NULL; // no break or continue out of finally block | |
| 3545 finalbody = finalbody->semantic(sc); | |
| 3546 sc->pop(); | |
| 3547 return this; | |
| 3548 } | |
| 3549 | |
| 3550 void TryFinallyStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3551 { | |
| 3552 buf->printf("try\n{\n"); | |
| 3553 body->toCBuffer(buf, hgs); | |
| 3554 buf->printf("}\nfinally\n{\n"); | |
| 3555 finalbody->toCBuffer(buf, hgs); | |
| 3556 buf->writeByte('}'); | |
| 3557 buf->writenl(); | |
| 3558 } | |
| 3559 | |
| 3560 int TryFinallyStatement::hasBreak() | |
| 3561 { | |
| 3562 return FALSE; //TRUE; | |
| 3563 } | |
| 3564 | |
| 3565 int TryFinallyStatement::hasContinue() | |
| 3566 { | |
| 3567 return FALSE; //TRUE; | |
| 3568 } | |
| 3569 | |
| 3570 int TryFinallyStatement::usesEH() | |
| 3571 { | |
| 3572 return TRUE; | |
| 3573 } | |
| 3574 | |
| 336 | 3575 int TryFinallyStatement::blockExit() |
| 3576 { | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
846
diff
changeset
|
3577 if (body) |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
846
diff
changeset
|
3578 return body->blockExit(); |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
846
diff
changeset
|
3579 return BEfallthru; |
| 336 | 3580 } |
| 3581 | |
| 159 | 3582 |
| 3583 /****************************** OnScopeStatement ***************************/ | |
| 3584 | |
| 3585 OnScopeStatement::OnScopeStatement(Loc loc, TOK tok, Statement *statement) | |
| 3586 : Statement(loc) | |
| 3587 { | |
| 3588 this->tok = tok; | |
| 3589 this->statement = statement; | |
| 3590 } | |
| 3591 | |
| 3592 Statement *OnScopeStatement::syntaxCopy() | |
| 3593 { | |
| 3594 OnScopeStatement *s = new OnScopeStatement(loc, | |
| 3595 tok, statement->syntaxCopy()); | |
| 3596 return s; | |
| 3597 } | |
| 3598 | |
| 3599 Statement *OnScopeStatement::semantic(Scope *sc) | |
| 3600 { | |
| 3601 /* semantic is called on results of scopeCode() */ | |
| 3602 return this; | |
| 3603 } | |
| 3604 | |
| 336 | 3605 int OnScopeStatement::blockExit() |
| 3606 { // At this point, this statement is just an empty placeholder | |
| 3607 return BEfallthru; | |
| 3608 } | |
| 3609 | |
| 159 | 3610 void OnScopeStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 3611 { | |
| 3612 buf->writestring(Token::toChars(tok)); | |
| 3613 buf->writebyte(' '); | |
| 3614 statement->toCBuffer(buf, hgs); | |
| 3615 } | |
| 3616 | |
| 3617 int OnScopeStatement::usesEH() | |
| 3618 { | |
| 3619 return (tok != TOKon_scope_success); | |
| 3620 } | |
| 3621 | |
| 3622 void OnScopeStatement::scopeCode(Statement **sentry, Statement **sexception, Statement **sfinally) | |
| 3623 { | |
| 3624 //printf("OnScopeStatement::scopeCode()\n"); | |
| 3625 //print(); | |
| 3626 *sentry = NULL; | |
| 3627 *sexception = NULL; | |
| 3628 *sfinally = NULL; | |
| 3629 switch (tok) | |
| 3630 { | |
| 3631 case TOKon_scope_exit: | |
| 3632 *sfinally = statement; | |
| 3633 break; | |
| 3634 | |
| 3635 case TOKon_scope_failure: | |
| 3636 *sexception = statement; | |
| 3637 break; | |
| 3638 | |
| 3639 case TOKon_scope_success: | |
| 3640 { | |
| 3641 /* Create: | |
| 3642 * sentry: int x = 0; | |
| 3643 * sexception: x = 1; | |
| 3644 * sfinally: if (!x) statement; | |
| 3645 */ | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
3646 Identifier *id = Lexer::uniqueId("__os"); |
| 159 | 3647 |
| 3648 ExpInitializer *ie = new ExpInitializer(loc, new IntegerExp(0)); | |
| 3649 VarDeclaration *v = new VarDeclaration(loc, Type::tint32, id, ie); | |
| 3650 *sentry = new DeclarationStatement(loc, v); | |
| 3651 | |
| 3652 Expression *e = new IntegerExp(1); | |
| 3653 e = new AssignExp(0, new VarExp(0, v), e); | |
| 3654 *sexception = new ExpStatement(0, e); | |
| 3655 | |
| 3656 e = new VarExp(0, v); | |
| 3657 e = new NotExp(0, e); | |
| 3658 *sfinally = new IfStatement(0, NULL, e, statement, NULL); | |
| 3659 | |
| 3660 break; | |
| 3661 } | |
| 3662 | |
| 3663 default: | |
| 3664 assert(0); | |
| 3665 } | |
| 3666 } | |
| 3667 | |
| 3668 /******************************** ThrowStatement ***************************/ | |
| 3669 | |
| 3670 ThrowStatement::ThrowStatement(Loc loc, Expression *exp) | |
| 3671 : Statement(loc) | |
| 3672 { | |
| 3673 this->exp = exp; | |
| 3674 } | |
| 3675 | |
| 3676 Statement *ThrowStatement::syntaxCopy() | |
| 3677 { | |
| 3678 ThrowStatement *s = new ThrowStatement(loc, exp->syntaxCopy()); | |
| 3679 return s; | |
| 3680 } | |
| 3681 | |
| 3682 Statement *ThrowStatement::semantic(Scope *sc) | |
| 3683 { | |
| 3684 //printf("ThrowStatement::semantic()\n"); | |
| 3685 | |
| 3686 FuncDeclaration *fd = sc->parent->isFuncDeclaration(); | |
| 3687 fd->hasReturnExp |= 2; | |
| 3688 | |
| 3689 if (sc->incontract) | |
| 3690 error("Throw statements cannot be in contracts"); | |
| 3691 exp = exp->semantic(sc); | |
| 3692 exp = resolveProperties(sc, exp); | |
| 3693 if (!exp->type->toBasetype()->isClassHandle()) | |
| 3694 error("can only throw class objects, not type %s", exp->type->toChars()); | |
| 3695 return this; | |
| 3696 } | |
| 3697 | |
| 336 | 3698 int ThrowStatement::blockExit() |
| 3699 { | |
| 3700 return BEthrow; // obviously | |
| 3701 } | |
| 3702 | |
| 159 | 3703 void ThrowStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 3704 { | |
| 3705 buf->printf("throw "); | |
| 3706 exp->toCBuffer(buf, hgs); | |
| 3707 buf->writeByte(';'); | |
| 3708 buf->writenl(); | |
| 3709 } | |
| 3710 | |
| 3711 /******************************** VolatileStatement **************************/ | |
| 3712 | |
| 3713 VolatileStatement::VolatileStatement(Loc loc, Statement *statement) | |
| 3714 : Statement(loc) | |
| 3715 { | |
| 3716 this->statement = statement; | |
| 309 | 3717 this->enclosinghandler = NULL; |
| 159 | 3718 } |
| 3719 | |
| 3720 Statement *VolatileStatement::syntaxCopy() | |
| 3721 { | |
| 3722 VolatileStatement *s = new VolatileStatement(loc, | |
| 3723 statement ? statement->syntaxCopy() : NULL); | |
| 3724 return s; | |
| 3725 } | |
| 3726 | |
| 3727 Statement *VolatileStatement::semantic(Scope *sc) | |
| 3728 { | |
| 309 | 3729 if (statement) |
| 3730 { | |
| 3731 enclosinghandler = sc->tfOfTry; | |
| 3732 sc->tfOfTry = new EnclosingVolatile(this); | |
| 3733 statement = statement->semantic(sc); | |
| 3734 sc->tfOfTry = enclosinghandler; | |
| 3735 } | |
| 159 | 3736 return this; |
| 3737 } | |
| 3738 | |
| 3739 Statements *VolatileStatement::flatten(Scope *sc) | |
| 3740 { | |
| 3741 Statements *a; | |
| 3742 | |
| 3743 a = statement ? statement->flatten(sc) : NULL; | |
| 3744 if (a) | |
| 3745 { for (int i = 0; i < a->dim; i++) | |
| 3746 { Statement *s = (Statement *)a->data[i]; | |
| 3747 | |
| 3748 s = new VolatileStatement(loc, s); | |
| 3749 a->data[i] = s; | |
| 3750 } | |
| 3751 } | |
| 3752 | |
| 3753 return a; | |
| 3754 } | |
| 3755 | |
| 336 | 3756 int VolatileStatement::blockExit() |
| 3757 { | |
| 3758 return statement ? statement->blockExit() : BEfallthru; | |
| 3759 } | |
| 3760 | |
| 159 | 3761 void VolatileStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 3762 { | |
| 3763 buf->writestring("volatile"); | |
| 3764 if (statement) | |
| 3765 { if (statement->isScopeStatement()) | |
| 3766 buf->writenl(); | |
| 3767 else | |
| 3768 buf->writebyte(' '); | |
| 3769 statement->toCBuffer(buf, hgs); | |
| 3770 } | |
| 3771 } | |
| 3772 | |
| 3773 | |
| 3774 /******************************** GotoStatement ***************************/ | |
| 3775 | |
| 3776 GotoStatement::GotoStatement(Loc loc, Identifier *ident) | |
| 3777 : Statement(loc) | |
| 3778 { | |
| 3779 this->ident = ident; | |
| 3780 this->label = NULL; | |
| 3781 this->tf = NULL; | |
| 309 | 3782 this->enclosinghandler = NULL; |
| 159 | 3783 } |
| 3784 | |
| 3785 Statement *GotoStatement::syntaxCopy() | |
| 3786 { | |
| 3787 GotoStatement *s = new GotoStatement(loc, ident); | |
| 3788 return s; | |
| 3789 } | |
| 3790 | |
| 3791 Statement *GotoStatement::semantic(Scope *sc) | |
| 3792 { FuncDeclaration *fd = sc->parent->isFuncDeclaration(); | |
| 3793 | |
| 3794 //printf("GotoStatement::semantic()\n"); | |
| 3795 tf = sc->tf; | |
| 309 | 3796 enclosinghandler = sc->tfOfTry; |
| 159 | 3797 label = fd->searchLabel(ident); |
| 3798 if (!label->statement && sc->fes) | |
| 3799 { | |
| 3800 /* Either the goto label is forward referenced or it | |
| 3801 * is in the function that the enclosing foreach is in. | |
| 3802 * Can't know yet, so wrap the goto in a compound statement | |
| 3803 * so we can patch it later, and add it to a 'look at this later' | |
| 3804 * list. | |
| 3805 */ | |
| 3806 Statements *a = new Statements(); | |
| 3807 Statement *s; | |
| 3808 | |
| 3809 a->push(this); | |
| 3810 s = new CompoundStatement(loc, a); | |
| 3811 sc->fes->gotos.push(s); // 'look at this later' list | |
| 3812 return s; | |
| 3813 } | |
| 3814 if (label->statement && label->statement->tf != sc->tf) | |
| 3815 error("cannot goto in or out of finally block"); | |
| 3816 return this; | |
| 3817 } | |
| 3818 | |
| 336 | 3819 int GotoStatement::blockExit() |
| 3820 { | |
| 3821 //printf("GotoStatement::blockExit(%p)\n", this); | |
| 3822 return BEgoto; | |
| 3823 } | |
| 3824 | |
| 159 | 3825 void GotoStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
| 3826 { | |
| 3827 buf->writestring("goto "); | |
| 3828 buf->writestring(ident->toChars()); | |
| 3829 buf->writebyte(';'); | |
| 3830 buf->writenl(); | |
| 3831 } | |
| 3832 | |
| 3833 /******************************** LabelStatement ***************************/ | |
| 3834 | |
| 3835 LabelStatement::LabelStatement(Loc loc, Identifier *ident, Statement *statement) | |
| 3836 : Statement(loc) | |
| 3837 { | |
| 3838 this->ident = ident; | |
| 3839 this->statement = statement; | |
| 3840 this->tf = NULL; | |
| 309 | 3841 this->enclosinghandler = NULL; |
| 159 | 3842 this->lblock = NULL; |
| 3843 this->isReturnLabel = 0; | |
|
305
2b72433d5c8c
[svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents:
304
diff
changeset
|
3844 this->asmLabel = false; |
| 159 | 3845 } |
| 3846 | |
| 3847 Statement *LabelStatement::syntaxCopy() | |
| 3848 { | |
| 3849 LabelStatement *s = new LabelStatement(loc, ident, statement->syntaxCopy()); | |
| 3850 return s; | |
| 3851 } | |
| 3852 | |
| 3853 Statement *LabelStatement::semantic(Scope *sc) | |
| 3854 { LabelDsymbol *ls; | |
| 3855 FuncDeclaration *fd = sc->parent->isFuncDeclaration(); | |
| 3856 | |
| 3857 //printf("LabelStatement::semantic()\n"); | |
| 3858 ls = fd->searchLabel(ident); | |
| 3859 if (ls->statement) | |
| 3860 error("Label '%s' already defined", ls->toChars()); | |
| 3861 else | |
| 3862 ls->statement = this; | |
| 3863 tf = sc->tf; | |
| 309 | 3864 enclosinghandler = sc->tfOfTry; |
| 159 | 3865 sc = sc->push(); |
| 3866 sc->scopesym = sc->enclosing->scopesym; | |
| 3867 sc->callSuper |= CSXlabel; | |
| 3868 sc->slabel = this; | |
| 3869 if (statement) | |
| 3870 statement = statement->semantic(sc); | |
| 3871 sc->pop(); | |
|
305
2b72433d5c8c
[svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents:
304
diff
changeset
|
3872 |
|
664
eef8ac26c66c
Some missed LLVMDC -> LDC.
Christian Kamm <kamm incasoftware de>
parents:
510
diff
changeset
|
3873 // LDC put in labmap |
|
305
2b72433d5c8c
[svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents:
304
diff
changeset
|
3874 fd->labmap[ident->toChars()] = this; |
|
2b72433d5c8c
[svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents:
304
diff
changeset
|
3875 |
| 159 | 3876 return this; |
| 3877 } | |
| 3878 | |
| 3879 Statements *LabelStatement::flatten(Scope *sc) | |
| 3880 { | |
| 3881 Statements *a = NULL; | |
| 3882 | |
| 3883 if (statement) | |
| 3884 { | |
| 3885 a = statement->flatten(sc); | |
| 3886 if (a) | |
| 3887 { | |
| 3888 if (!a->dim) | |
| 3889 { | |
| 3890 a->push(new ExpStatement(loc, NULL)); | |
| 3891 } | |
| 3892 Statement *s = (Statement *)a->data[0]; | |
| 3893 | |
| 3894 s = new LabelStatement(loc, ident, s); | |
| 3895 a->data[0] = s; | |
| 3896 } | |
| 3897 } | |
| 3898 | |
| 3899 return a; | |
| 3900 } | |
| 3901 | |
| 3902 | |
| 3903 int LabelStatement::usesEH() | |
| 3904 { | |
| 3905 return statement ? statement->usesEH() : FALSE; | |
| 3906 } | |
| 3907 | |
| 336 | 3908 int LabelStatement::blockExit() |
| 3909 { | |
| 3910 //printf("LabelStatement::blockExit(%p)\n", this); | |
| 3911 return statement ? statement->blockExit() : BEfallthru; | |
| 3912 } | |
| 3913 | |
| 159 | 3914 int LabelStatement::comeFrom() |
| 3915 { | |
| 3916 //printf("LabelStatement::comeFrom()\n"); | |
| 3917 return TRUE; | |
| 3918 } | |
| 3919 | |
| 3920 void LabelStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3921 { | |
| 3922 buf->writestring(ident->toChars()); | |
| 3923 buf->writebyte(':'); | |
| 3924 buf->writenl(); | |
| 3925 if (statement) | |
| 3926 statement->toCBuffer(buf, hgs); | |
| 3927 } | |
| 3928 | |
| 3929 | |
| 3930 /******************************** LabelDsymbol ***************************/ | |
| 3931 | |
| 3932 LabelDsymbol::LabelDsymbol(Identifier *ident) | |
| 3933 : Dsymbol(ident) | |
| 3934 { | |
| 3935 statement = NULL; | |
| 3936 } | |
| 3937 | |
| 3938 LabelDsymbol *LabelDsymbol::isLabel() // is this a LabelDsymbol()? | |
| 3939 { | |
| 3940 return this; | |
| 3941 } |