Mercurial > projects > ldc
annotate dmd/parse.c @ 232:092468448d25 trunk
[svn r248] Fixed: labels in inline asm block now work for the normal case.
Fixed: inline asm blocks are now emitted as a single asm entity.
| author | lindquist |
|---|---|
| date | Sun, 08 Jun 2008 06:15:51 +0200 |
| parents | 5acec6b2eef8 |
| children | aaade6ded589 |
| rev | line source |
|---|---|
| 1 | 1 |
| 2 // Compiler implementation of the D programming language | |
| 3 // Copyright (c) 1999-2007 by Digital Mars | |
| 4 // All Rights Reserved | |
| 5 // written by Walter Bright | |
| 6 // http://www.digitalmars.com | |
| 7 // License for redistribution is by either the Artistic License | |
| 8 // in artistic.txt, or the GNU General Public License in gnu.txt. | |
| 9 // See the included readme.txt for details. | |
| 10 | |
| 11 #include <stdio.h> | |
| 12 #include <assert.h> | |
| 13 | |
| 14 #include "mem.h" | |
| 15 #include "lexer.h" | |
| 16 #include "parse.h" | |
| 17 #include "init.h" | |
| 18 #include "attrib.h" | |
| 19 #include "cond.h" | |
| 20 #include "mtype.h" | |
| 21 #include "template.h" | |
| 22 #include "staticassert.h" | |
| 23 #include "expression.h" | |
| 24 #include "statement.h" | |
| 25 #include "module.h" | |
| 26 #include "dsymbol.h" | |
| 27 #include "import.h" | |
| 28 #include "declaration.h" | |
| 29 #include "aggregate.h" | |
| 30 #include "enum.h" | |
| 31 #include "id.h" | |
| 32 #include "version.h" | |
| 33 | |
| 34 // How multiple declarations are parsed. | |
| 35 // If 1, treat as C. | |
| 36 // If 0, treat: | |
| 37 // int *p, i; | |
| 38 // as: | |
| 39 // int* p; | |
| 40 // int* i; | |
| 41 #define CDECLSYNTAX 0 | |
| 42 | |
| 43 // Support C cast syntax: | |
| 44 // (type)(expression) | |
| 45 #define CCASTSYNTAX 1 | |
| 46 | |
| 47 // Support C array declarations, such as | |
| 48 // int a[3][4]; | |
| 49 #define CARRAYDECL 1 | |
| 50 | |
| 51 // Support left-to-right array declarations | |
| 52 #define LTORARRAYDECL 1 | |
| 53 | |
| 54 | |
| 55 Parser::Parser(Module *module, unsigned char *base, unsigned length, int doDocComment) | |
| 56 : Lexer(module, base, 0, length, doDocComment, 0) | |
| 57 { | |
| 58 //printf("Parser::Parser()\n"); | |
| 59 md = NULL; | |
| 60 linkage = LINKd; | |
| 61 endloc = 0; | |
| 62 inBrackets = 0; | |
| 63 //nextToken(); // start up the scanner | |
| 64 } | |
| 65 | |
| 66 Array *Parser::parseModule() | |
| 67 { | |
| 68 Array *decldefs; | |
| 69 | |
| 70 // ModuleDeclation leads off | |
| 71 if (token.value == TOKmodule) | |
| 72 { | |
| 73 unsigned char *comment = token.blockComment; | |
| 74 | |
| 75 nextToken(); | |
| 76 if (token.value != TOKidentifier) | |
| 77 { error("Identifier expected following module"); | |
| 78 goto Lerr; | |
| 79 } | |
| 80 else | |
| 81 { | |
| 82 Array *a = NULL; | |
| 83 Identifier *id; | |
| 84 | |
| 85 id = token.ident; | |
| 86 while (nextToken() == TOKdot) | |
| 87 { | |
| 88 if (!a) | |
| 89 a = new Array(); | |
| 90 a->push(id); | |
| 91 nextToken(); | |
| 92 if (token.value != TOKidentifier) | |
| 93 { error("Identifier expected following package"); | |
| 94 goto Lerr; | |
| 95 } | |
| 96 id = token.ident; | |
| 97 } | |
| 98 | |
| 99 md = new ModuleDeclaration(a, id); | |
| 100 | |
| 101 if (token.value != TOKsemicolon) | |
| 102 error("';' expected following module declaration instead of %s", token.toChars()); | |
| 103 nextToken(); | |
| 104 addComment(mod, comment); | |
| 105 } | |
| 106 } | |
| 107 | |
| 108 decldefs = parseDeclDefs(0); | |
| 109 if (token.value != TOKeof) | |
| 110 { error("unrecognized declaration"); | |
| 111 goto Lerr; | |
| 112 } | |
| 113 return decldefs; | |
| 114 | |
| 115 Lerr: | |
| 116 while (token.value != TOKsemicolon && token.value != TOKeof) | |
| 117 nextToken(); | |
| 118 nextToken(); | |
| 119 return new Array(); | |
| 120 } | |
| 121 | |
| 122 Array *Parser::parseDeclDefs(int once) | |
| 123 { Dsymbol *s; | |
| 124 Array *decldefs; | |
| 125 Array *a; | |
| 126 Array *aelse; | |
| 127 enum PROT prot; | |
| 128 unsigned stc; | |
| 129 Condition *condition; | |
| 130 unsigned char *comment; | |
| 131 | |
| 132 //printf("Parser::parseDeclDefs()\n"); | |
| 133 decldefs = new Array(); | |
| 134 do | |
| 135 { | |
| 136 comment = token.blockComment; | |
| 137 switch (token.value) | |
| 138 { | |
| 139 case TOKenum: | |
| 140 s = parseEnum(); | |
| 141 break; | |
| 142 | |
| 143 case TOKstruct: | |
| 144 case TOKunion: | |
| 145 case TOKclass: | |
| 146 case TOKinterface: | |
| 147 s = parseAggregate(); | |
| 148 break; | |
| 149 | |
| 150 case TOKimport: | |
| 151 s = parseImport(decldefs, 0); | |
| 152 break; | |
| 153 | |
| 154 case TOKtemplate: | |
| 155 s = (Dsymbol *)parseTemplateDeclaration(); | |
| 156 break; | |
| 157 | |
| 158 case TOKmixin: | |
| 159 { Loc loc = this->loc; | |
| 160 if (peek(&token)->value == TOKlparen) | |
| 161 { // mixin(string) | |
| 162 nextToken(); | |
| 163 check(TOKlparen, "mixin"); | |
| 164 Expression *e = parseAssignExp(); | |
| 165 check(TOKrparen); | |
| 166 check(TOKsemicolon); | |
| 167 s = new CompileDeclaration(loc, e); | |
| 168 break; | |
| 169 } | |
| 170 s = parseMixin(); | |
| 171 break; | |
| 172 } | |
| 173 | |
| 174 CASE_BASIC_TYPES: | |
| 175 case TOKalias: | |
| 176 case TOKtypedef: | |
| 177 case TOKidentifier: | |
| 178 case TOKtypeof: | |
| 179 case TOKdot: | |
| 180 Ldeclaration: | |
| 181 a = parseDeclarations(); | |
| 182 decldefs->append(a); | |
| 183 continue; | |
| 184 | |
| 185 case TOKthis: | |
| 186 s = parseCtor(); | |
| 187 break; | |
| 188 | |
| 189 case TOKtilde: | |
| 190 s = parseDtor(); | |
| 191 break; | |
| 192 | |
| 193 case TOKinvariant: | |
| 194 #if 1 | |
| 195 s = parseInvariant(); | |
| 196 #else | |
| 197 if (peek(&token)->value == TOKlcurly) | |
| 198 s = parseInvariant(); | |
| 199 else | |
| 200 { | |
| 201 stc = STCinvariant; | |
| 202 goto Lstc; | |
| 203 } | |
| 204 #endif | |
| 205 break; | |
| 206 | |
| 207 case TOKunittest: | |
| 208 s = parseUnitTest(); | |
| 209 break; | |
| 210 | |
| 211 case TOKnew: | |
| 212 s = parseNew(); | |
| 213 break; | |
| 214 | |
| 215 case TOKdelete: | |
| 216 s = parseDelete(); | |
| 217 break; | |
| 218 | |
| 219 case TOKeof: | |
| 220 case TOKrcurly: | |
| 221 return decldefs; | |
| 222 | |
| 223 case TOKstatic: | |
| 224 nextToken(); | |
| 225 if (token.value == TOKthis) | |
| 226 s = parseStaticCtor(); | |
| 227 else if (token.value == TOKtilde) | |
| 228 s = parseStaticDtor(); | |
| 229 else if (token.value == TOKassert) | |
| 230 s = parseStaticAssert(); | |
| 231 else if (token.value == TOKif) | |
| 232 { condition = parseStaticIfCondition(); | |
| 233 a = parseBlock(); | |
| 234 aelse = NULL; | |
| 235 if (token.value == TOKelse) | |
| 236 { nextToken(); | |
| 237 aelse = parseBlock(); | |
| 238 } | |
| 239 s = new StaticIfDeclaration(condition, a, aelse); | |
| 240 break; | |
| 241 } | |
| 242 else if (token.value == TOKimport) | |
| 243 { | |
| 244 s = parseImport(decldefs, 1); | |
| 245 } | |
| 246 else | |
| 247 { stc = STCstatic; | |
| 248 goto Lstc2; | |
| 249 } | |
| 250 break; | |
| 251 | |
| 252 case TOKconst: stc = STCconst; goto Lstc; | |
| 253 case TOKfinal: stc = STCfinal; goto Lstc; | |
| 254 case TOKauto: stc = STCauto; goto Lstc; | |
| 255 case TOKscope: stc = STCscope; goto Lstc; | |
| 256 case TOKoverride: stc = STCoverride; goto Lstc; | |
| 257 case TOKabstract: stc = STCabstract; goto Lstc; | |
| 258 case TOKsynchronized: stc = STCsynchronized; goto Lstc; | |
| 259 case TOKdeprecated: stc = STCdeprecated; goto Lstc; | |
| 260 | |
| 261 Lstc: | |
| 262 nextToken(); | |
| 263 Lstc2: | |
| 264 switch (token.value) | |
| 265 { | |
| 266 case TOKconst: stc |= STCconst; goto Lstc; | |
| 267 case TOKfinal: stc |= STCfinal; goto Lstc; | |
| 268 case TOKauto: stc |= STCauto; goto Lstc; | |
| 269 case TOKscope: stc |= STCscope; goto Lstc; | |
| 270 case TOKoverride: stc |= STCoverride; goto Lstc; | |
| 271 case TOKabstract: stc |= STCabstract; goto Lstc; | |
| 272 case TOKsynchronized: stc |= STCsynchronized; goto Lstc; | |
| 273 case TOKdeprecated: stc |= STCdeprecated; goto Lstc; | |
| 274 //case TOKinvariant: stc |= STCinvariant; goto Lstc; | |
| 275 default: | |
| 276 break; | |
| 277 } | |
| 278 | |
| 279 /* Look for auto initializers: | |
| 280 * storage_class identifier = initializer; | |
| 281 */ | |
| 282 if (token.value == TOKidentifier && | |
| 283 peek(&token)->value == TOKassign) | |
| 284 { | |
| 285 while (1) | |
| 286 { | |
| 287 Identifier *ident = token.ident; | |
| 288 nextToken(); | |
| 289 nextToken(); | |
| 290 Initializer *init = parseInitializer(); | |
| 291 VarDeclaration *v = new VarDeclaration(loc, NULL, ident, init); | |
| 292 v->storage_class = stc; | |
| 293 s = v; | |
| 294 if (token.value == TOKsemicolon) | |
| 295 { | |
| 296 nextToken(); | |
| 297 } | |
| 298 else if (token.value == TOKcomma) | |
| 299 { | |
| 300 nextToken(); | |
| 301 if (token.value == TOKidentifier && | |
| 302 peek(&token)->value == TOKassign) | |
| 303 { | |
| 304 decldefs->push(s); | |
| 305 addComment(s, comment); | |
| 306 continue; | |
| 307 } | |
| 308 else | |
| 309 error("Identifier expected following comma"); | |
| 310 } | |
| 311 else | |
| 312 error("semicolon expected following auto declaration, not '%s'", token.toChars()); | |
| 313 break; | |
| 314 } | |
| 315 } | |
| 316 else | |
| 317 { a = parseBlock(); | |
| 318 s = new StorageClassDeclaration(stc, a); | |
| 319 } | |
| 320 break; | |
| 321 | |
| 322 case TOKextern: | |
| 323 if (peek(&token)->value != TOKlparen) | |
| 324 { stc = STCextern; | |
| 325 goto Lstc; | |
| 326 } | |
| 327 { | |
| 328 enum LINK linksave = linkage; | |
| 329 linkage = parseLinkage(); | |
| 330 a = parseBlock(); | |
| 331 s = new LinkDeclaration(linkage, a); | |
| 332 linkage = linksave; | |
| 333 break; | |
| 334 } | |
| 335 case TOKprivate: prot = PROTprivate; goto Lprot; | |
| 336 case TOKpackage: prot = PROTpackage; goto Lprot; | |
| 337 case TOKprotected: prot = PROTprotected; goto Lprot; | |
| 338 case TOKpublic: prot = PROTpublic; goto Lprot; | |
| 339 case TOKexport: prot = PROTexport; goto Lprot; | |
| 340 | |
| 341 Lprot: | |
| 342 nextToken(); | |
| 343 a = parseBlock(); | |
| 344 s = new ProtDeclaration(prot, a); | |
| 345 break; | |
| 346 | |
| 347 case TOKalign: | |
| 348 { unsigned n; | |
| 349 | |
| 350 s = NULL; | |
| 351 nextToken(); | |
| 352 if (token.value == TOKlparen) | |
| 353 { | |
| 354 nextToken(); | |
| 355 if (token.value == TOKint32v) | |
| 356 n = (unsigned)token.uns64value; | |
| 357 else | |
| 358 { error("integer expected, not %s", token.toChars()); | |
| 359 n = 1; | |
| 360 } | |
| 361 nextToken(); | |
| 362 check(TOKrparen); | |
| 363 } | |
| 364 else | |
| 365 n = global.structalign; // default | |
| 366 | |
| 367 a = parseBlock(); | |
| 368 s = new AlignDeclaration(n, a); | |
| 369 break; | |
| 370 } | |
| 371 | |
| 372 case TOKpragma: | |
| 373 { Identifier *ident; | |
| 374 Expressions *args = NULL; | |
| 375 | |
| 376 nextToken(); | |
| 377 check(TOKlparen); | |
| 378 if (token.value != TOKidentifier) | |
| 379 { error("pragma(identifier expected"); | |
| 380 goto Lerror; | |
| 381 } | |
| 382 ident = token.ident; | |
| 383 nextToken(); | |
| 384 if (token.value == TOKcomma) | |
| 385 args = parseArguments(); // pragma(identifier, args...) | |
| 386 else | |
| 387 check(TOKrparen); // pragma(identifier) | |
| 388 | |
| 389 if (token.value == TOKsemicolon) | |
| 390 a = NULL; | |
| 391 else | |
| 392 a = parseBlock(); | |
| 393 s = new PragmaDeclaration(loc, ident, args, a); | |
| 394 break; | |
| 395 } | |
| 396 | |
| 397 case TOKdebug: | |
| 398 nextToken(); | |
| 399 if (token.value == TOKassign) | |
| 400 { | |
| 401 nextToken(); | |
| 402 if (token.value == TOKidentifier) | |
| 403 s = new DebugSymbol(loc, token.ident); | |
| 404 else if (token.value == TOKint32v) | |
| 405 s = new DebugSymbol(loc, (unsigned)token.uns64value); | |
| 406 else | |
| 407 { error("identifier or integer expected, not %s", token.toChars()); | |
| 408 s = NULL; | |
| 409 } | |
| 410 nextToken(); | |
| 411 if (token.value != TOKsemicolon) | |
| 412 error("semicolon expected"); | |
| 413 nextToken(); | |
| 414 break; | |
| 415 } | |
| 416 | |
| 417 condition = parseDebugCondition(); | |
| 418 goto Lcondition; | |
| 419 | |
| 420 case TOKversion: | |
| 421 nextToken(); | |
| 422 if (token.value == TOKassign) | |
| 423 { | |
| 424 nextToken(); | |
| 425 if (token.value == TOKidentifier) | |
| 426 s = new VersionSymbol(loc, token.ident); | |
| 427 else if (token.value == TOKint32v) | |
| 428 s = new VersionSymbol(loc, (unsigned)token.uns64value); | |
| 429 else | |
| 430 { error("identifier or integer expected, not %s", token.toChars()); | |
| 431 s = NULL; | |
| 432 } | |
| 433 nextToken(); | |
| 434 if (token.value != TOKsemicolon) | |
| 435 error("semicolon expected"); | |
| 436 nextToken(); | |
| 437 break; | |
| 438 } | |
| 439 condition = parseVersionCondition(); | |
| 440 goto Lcondition; | |
| 441 | |
| 442 Lcondition: | |
| 443 a = parseBlock(); | |
| 444 aelse = NULL; | |
| 445 if (token.value == TOKelse) | |
| 446 { nextToken(); | |
| 447 aelse = parseBlock(); | |
| 448 } | |
| 449 s = new ConditionalDeclaration(condition, a, aelse); | |
| 450 break; | |
| 451 | |
| 452 case TOKsemicolon: // empty declaration | |
| 453 nextToken(); | |
| 454 continue; | |
| 455 | |
| 456 default: | |
| 457 error("Declaration expected, not '%s'",token.toChars()); | |
| 458 Lerror: | |
| 459 while (token.value != TOKsemicolon && token.value != TOKeof) | |
| 460 nextToken(); | |
| 461 nextToken(); | |
| 462 s = NULL; | |
| 463 continue; | |
| 464 } | |
| 465 if (s) | |
| 466 { decldefs->push(s); | |
| 467 addComment(s, comment); | |
| 468 } | |
| 469 } while (!once); | |
| 470 return decldefs; | |
| 471 } | |
| 472 | |
| 473 | |
| 474 /******************************************** | |
| 475 * Parse declarations after an align, protection, or extern decl. | |
| 476 */ | |
| 477 | |
| 478 Array *Parser::parseBlock() | |
| 479 { | |
| 480 Array *a = NULL; | |
| 481 Dsymbol *s; | |
| 482 | |
| 483 //printf("parseBlock()\n"); | |
| 484 switch (token.value) | |
| 485 { | |
| 486 case TOKsemicolon: | |
| 487 error("declaration expected following attribute, not ';'"); | |
| 488 nextToken(); | |
| 489 break; | |
| 490 | |
| 491 case TOKlcurly: | |
| 492 nextToken(); | |
| 493 a = parseDeclDefs(0); | |
| 494 if (token.value != TOKrcurly) | |
| 495 { /* { */ | |
| 496 error("matching '}' expected, not %s", token.toChars()); | |
| 497 } | |
| 498 else | |
| 499 nextToken(); | |
| 500 break; | |
| 501 | |
| 502 case TOKcolon: | |
| 503 nextToken(); | |
| 504 #if 0 | |
| 505 a = NULL; | |
| 506 #else | |
| 507 a = parseDeclDefs(0); // grab declarations up to closing curly bracket | |
| 508 #endif | |
| 509 break; | |
| 510 | |
| 511 default: | |
| 512 a = parseDeclDefs(1); | |
| 513 break; | |
| 514 } | |
| 515 return a; | |
| 516 } | |
| 517 | |
| 518 /********************************** | |
| 519 * Parse a static assertion. | |
| 520 */ | |
| 521 | |
| 522 StaticAssert *Parser::parseStaticAssert() | |
| 523 { | |
| 524 Loc loc = this->loc; | |
| 525 Expression *exp; | |
| 526 Expression *msg = NULL; | |
| 527 | |
| 528 //printf("parseStaticAssert()\n"); | |
| 529 nextToken(); | |
| 530 check(TOKlparen); | |
| 531 exp = parseAssignExp(); | |
| 532 if (token.value == TOKcomma) | |
| 533 { nextToken(); | |
| 534 msg = parseAssignExp(); | |
| 535 } | |
| 536 check(TOKrparen); | |
| 537 check(TOKsemicolon); | |
| 538 return new StaticAssert(loc, exp, msg); | |
| 539 } | |
| 540 | |
| 541 | |
| 542 /*********************************** | |
| 543 * Parse extern (linkage) | |
| 544 * The parser is on the 'extern' token. | |
| 545 */ | |
| 546 | |
| 547 enum LINK Parser::parseLinkage() | |
| 548 { | |
| 549 enum LINK link = LINKdefault; | |
| 550 nextToken(); | |
| 551 assert(token.value == TOKlparen); | |
| 552 nextToken(); | |
| 553 if (token.value == TOKidentifier) | |
| 554 { Identifier *id = token.ident; | |
| 555 | |
| 556 nextToken(); | |
| 557 if (id == Id::Windows) | |
| 558 link = LINKwindows; | |
| 559 else if (id == Id::Pascal) | |
| 560 link = LINKpascal; | |
| 561 else if (id == Id::D) | |
| 562 link = LINKd; | |
| 563 else if (id == Id::C) | |
| 564 { | |
| 565 link = LINKc; | |
| 566 if (token.value == TOKplusplus) | |
| 567 { link = LINKcpp; | |
| 568 nextToken(); | |
| 569 } | |
| 570 } | |
| 571 else if (id == Id::System) | |
| 572 { | |
| 573 #if _WIN32 | |
| 574 link = LINKwindows; | |
| 575 #else | |
| 576 link = LINKc; | |
| 577 #endif | |
| 578 } | |
| 579 else | |
| 580 { | |
| 581 error("valid linkage identifiers are D, C, C++, Pascal, Windows, System"); | |
| 582 link = LINKd; | |
| 583 } | |
| 584 } | |
| 585 else | |
| 586 { | |
| 587 link = LINKd; // default | |
| 588 } | |
| 589 check(TOKrparen); | |
| 590 return link; | |
| 591 } | |
| 592 | |
| 593 /************************************** | |
| 594 * Parse a debug conditional | |
| 595 */ | |
| 596 | |
| 597 Condition *Parser::parseDebugCondition() | |
| 598 { | |
| 599 Condition *c; | |
| 600 | |
| 601 if (token.value == TOKlparen) | |
| 602 { | |
| 603 nextToken(); | |
| 604 unsigned level = 1; | |
| 605 Identifier *id = NULL; | |
| 606 | |
| 607 if (token.value == TOKidentifier) | |
| 608 id = token.ident; | |
| 609 else if (token.value == TOKint32v) | |
| 610 level = (unsigned)token.uns64value; | |
| 611 else | |
| 612 error("identifier or integer expected, not %s", token.toChars()); | |
| 613 nextToken(); | |
| 614 check(TOKrparen); | |
| 615 c = new DebugCondition(mod, level, id); | |
| 616 } | |
| 617 else | |
| 618 c = new DebugCondition(mod, 1, NULL); | |
| 619 return c; | |
| 620 | |
| 621 } | |
| 622 | |
| 623 /************************************** | |
| 624 * Parse a version conditional | |
| 625 */ | |
| 626 | |
| 627 Condition *Parser::parseVersionCondition() | |
| 628 { | |
| 629 Condition *c; | |
| 630 unsigned level = 1; | |
| 631 Identifier *id = NULL; | |
| 632 | |
| 633 if (token.value == TOKlparen) | |
| 634 { | |
| 635 nextToken(); | |
| 636 if (token.value == TOKidentifier) | |
| 637 id = token.ident; | |
| 638 else if (token.value == TOKint32v) | |
| 639 level = (unsigned)token.uns64value; | |
| 159 | 640 #if V2 |
| 641 /* Allow: | |
| 642 * version (unittest) | |
| 643 * even though unittest is a keyword | |
| 644 */ | |
| 645 else if (token.value == TOKunittest) | |
| 646 id = Lexer::idPool(Token::toChars(TOKunittest)); | |
| 647 #endif | |
| 1 | 648 else |
| 649 error("identifier or integer expected, not %s", token.toChars()); | |
| 650 nextToken(); | |
| 651 check(TOKrparen); | |
| 652 | |
| 653 } | |
| 654 else | |
| 655 error("(condition) expected following version"); | |
| 656 c = new VersionCondition(mod, level, id); | |
| 657 return c; | |
| 658 | |
| 659 } | |
| 660 | |
| 661 /*********************************************** | |
| 662 * static if (expression) | |
| 663 * body | |
| 664 * else | |
| 665 * body | |
| 666 */ | |
| 667 | |
| 668 Condition *Parser::parseStaticIfCondition() | |
| 669 { Expression *exp; | |
| 670 Condition *condition; | |
| 671 Array *aif; | |
| 672 Array *aelse; | |
| 673 Loc loc = this->loc; | |
| 674 | |
| 675 nextToken(); | |
| 676 if (token.value == TOKlparen) | |
| 677 { | |
| 678 nextToken(); | |
| 679 exp = parseAssignExp(); | |
| 680 check(TOKrparen); | |
| 681 } | |
| 682 else | |
| 683 { error("(expression) expected following static if"); | |
| 684 exp = NULL; | |
| 685 } | |
| 686 condition = new StaticIfCondition(loc, exp); | |
| 687 return condition; | |
| 688 } | |
| 689 | |
| 690 | |
| 691 /***************************************** | |
| 692 * Parse a constructor definition: | |
| 693 * this(arguments) { body } | |
| 694 * Current token is 'this'. | |
| 695 */ | |
| 696 | |
| 697 CtorDeclaration *Parser::parseCtor() | |
| 698 { | |
| 699 CtorDeclaration *f; | |
| 700 Arguments *arguments; | |
| 701 int varargs; | |
| 702 Loc loc = this->loc; | |
| 703 | |
| 704 nextToken(); | |
| 705 arguments = parseParameters(&varargs); | |
| 706 f = new CtorDeclaration(loc, 0, arguments, varargs); | |
| 707 parseContracts(f); | |
| 708 return f; | |
| 709 } | |
| 710 | |
| 711 /***************************************** | |
| 712 * Parse a destructor definition: | |
| 713 * ~this() { body } | |
| 714 * Current token is '~'. | |
| 715 */ | |
| 716 | |
| 717 DtorDeclaration *Parser::parseDtor() | |
| 718 { | |
| 719 DtorDeclaration *f; | |
| 720 Loc loc = this->loc; | |
| 721 | |
| 722 nextToken(); | |
| 723 check(TOKthis); | |
| 724 check(TOKlparen); | |
| 725 check(TOKrparen); | |
| 726 | |
| 727 f = new DtorDeclaration(loc, 0); | |
| 728 parseContracts(f); | |
| 729 return f; | |
| 730 } | |
| 731 | |
| 732 /***************************************** | |
| 733 * Parse a static constructor definition: | |
| 734 * static this() { body } | |
| 735 * Current token is 'this'. | |
| 736 */ | |
| 737 | |
| 738 StaticCtorDeclaration *Parser::parseStaticCtor() | |
| 739 { | |
| 740 StaticCtorDeclaration *f; | |
| 741 Loc loc = this->loc; | |
| 742 | |
| 743 nextToken(); | |
| 744 check(TOKlparen); | |
| 745 check(TOKrparen); | |
| 746 | |
| 747 f = new StaticCtorDeclaration(loc, 0); | |
| 748 parseContracts(f); | |
| 749 return f; | |
| 750 } | |
| 751 | |
| 752 /***************************************** | |
| 753 * Parse a static destructor definition: | |
| 754 * static ~this() { body } | |
| 755 * Current token is '~'. | |
| 756 */ | |
| 757 | |
| 758 StaticDtorDeclaration *Parser::parseStaticDtor() | |
| 759 { | |
| 760 StaticDtorDeclaration *f; | |
| 761 Loc loc = this->loc; | |
| 762 | |
| 763 nextToken(); | |
| 764 check(TOKthis); | |
| 765 check(TOKlparen); | |
| 766 check(TOKrparen); | |
| 767 | |
| 768 f = new StaticDtorDeclaration(loc, 0); | |
| 769 parseContracts(f); | |
| 770 return f; | |
| 771 } | |
| 772 | |
| 773 /***************************************** | |
| 774 * Parse an invariant definition: | |
| 775 * invariant { body } | |
| 776 * Current token is 'invariant'. | |
| 777 */ | |
| 778 | |
| 779 InvariantDeclaration *Parser::parseInvariant() | |
| 780 { | |
| 781 InvariantDeclaration *f; | |
| 782 Loc loc = this->loc; | |
| 783 | |
| 784 nextToken(); | |
| 785 if (token.value == TOKlparen) // optional () | |
| 786 { | |
| 787 nextToken(); | |
| 788 check(TOKrparen); | |
| 789 } | |
| 790 | |
| 791 f = new InvariantDeclaration(loc, 0); | |
| 792 f->fbody = parseStatement(PScurly); | |
| 793 return f; | |
| 794 } | |
| 795 | |
| 796 /***************************************** | |
| 797 * Parse a unittest definition: | |
| 798 * unittest { body } | |
| 799 * Current token is 'unittest'. | |
| 800 */ | |
| 801 | |
| 802 UnitTestDeclaration *Parser::parseUnitTest() | |
| 803 { | |
| 804 UnitTestDeclaration *f; | |
| 805 Statement *body; | |
| 806 Loc loc = this->loc; | |
| 807 | |
| 808 nextToken(); | |
| 809 | |
| 810 body = parseStatement(PScurly); | |
| 811 | |
| 812 f = new UnitTestDeclaration(loc, this->loc); | |
| 813 f->fbody = body; | |
| 814 return f; | |
| 815 } | |
| 816 | |
| 817 /***************************************** | |
| 818 * Parse a new definition: | |
| 819 * new(arguments) { body } | |
| 820 * Current token is 'new'. | |
| 821 */ | |
| 822 | |
| 823 NewDeclaration *Parser::parseNew() | |
| 824 { | |
| 825 NewDeclaration *f; | |
| 826 Arguments *arguments; | |
| 827 int varargs; | |
| 828 Loc loc = this->loc; | |
| 829 | |
| 830 nextToken(); | |
| 831 arguments = parseParameters(&varargs); | |
| 832 f = new NewDeclaration(loc, 0, arguments, varargs); | |
| 833 parseContracts(f); | |
| 834 return f; | |
| 835 } | |
| 836 | |
| 837 /***************************************** | |
| 838 * Parse a delete definition: | |
| 839 * delete(arguments) { body } | |
| 840 * Current token is 'delete'. | |
| 841 */ | |
| 842 | |
| 843 DeleteDeclaration *Parser::parseDelete() | |
| 844 { | |
| 845 DeleteDeclaration *f; | |
| 846 Arguments *arguments; | |
| 847 int varargs; | |
| 848 Loc loc = this->loc; | |
| 849 | |
| 850 nextToken(); | |
| 851 arguments = parseParameters(&varargs); | |
| 852 if (varargs) | |
| 853 error("... not allowed in delete function parameter list"); | |
| 854 f = new DeleteDeclaration(loc, 0, arguments); | |
| 855 parseContracts(f); | |
| 856 return f; | |
| 857 } | |
| 858 | |
| 859 /********************************************** | |
| 860 * Parse parameter list. | |
| 861 */ | |
| 862 | |
| 863 Arguments *Parser::parseParameters(int *pvarargs) | |
| 864 { | |
| 865 Arguments *arguments = new Arguments(); | |
| 866 int varargs = 0; | |
| 867 int hasdefault = 0; | |
| 868 | |
| 869 check(TOKlparen); | |
| 870 while (1) | |
| 871 { Type *tb; | |
| 872 Identifier *ai; | |
| 873 Type *at; | |
| 874 Argument *a; | |
| 875 unsigned storageClass; | |
| 876 Expression *ae; | |
| 877 | |
| 878 ai = NULL; | |
| 879 storageClass = STCin; // parameter is "in" by default | |
| 880 switch (token.value) | |
| 881 { | |
| 882 case TOKrparen: | |
| 883 break; | |
| 884 | |
| 885 case TOKdotdotdot: | |
| 886 varargs = 1; | |
| 887 nextToken(); | |
| 888 break; | |
| 889 | |
| 890 case TOKin: | |
| 891 storageClass = STCin; | |
| 892 nextToken(); | |
| 893 goto L1; | |
| 894 | |
| 895 case TOKout: | |
| 896 storageClass = STCout; | |
| 897 nextToken(); | |
| 898 goto L1; | |
| 899 | |
| 900 case TOKinout: | |
| 901 case TOKref: | |
| 902 storageClass = STCref; | |
| 903 nextToken(); | |
| 904 goto L1; | |
| 905 | |
| 906 case TOKlazy: | |
| 907 storageClass = STClazy; | |
| 908 nextToken(); | |
| 909 goto L1; | |
| 910 | |
| 911 default: | |
| 912 L1: | |
| 913 tb = parseBasicType(); | |
| 914 at = parseDeclarator(tb, &ai); | |
| 915 ae = NULL; | |
| 916 if (token.value == TOKassign) // = defaultArg | |
| 917 { nextToken(); | |
| 918 ae = parseAssignExp(); | |
| 919 hasdefault = 1; | |
| 920 } | |
| 921 else | |
| 922 { if (hasdefault) | |
| 923 error("default argument expected for %s", | |
| 924 ai ? ai->toChars() : at->toChars()); | |
| 925 } | |
| 926 if (token.value == TOKdotdotdot) | |
| 927 { /* This is: | |
| 928 * at ai ... | |
| 929 */ | |
| 930 | |
| 931 if (storageClass & (STCout | STCref)) | |
| 932 error("variadic argument cannot be out or ref"); | |
| 933 varargs = 2; | |
| 934 a = new Argument(storageClass, at, ai, ae); | |
| 935 arguments->push(a); | |
| 936 nextToken(); | |
| 937 break; | |
| 938 } | |
| 939 a = new Argument(storageClass, at, ai, ae); | |
| 940 arguments->push(a); | |
| 941 if (token.value == TOKcomma) | |
| 942 { nextToken(); | |
| 943 continue; | |
| 944 } | |
| 945 break; | |
| 946 } | |
| 947 break; | |
| 948 } | |
| 949 check(TOKrparen); | |
| 950 *pvarargs = varargs; | |
| 951 return arguments; | |
| 952 } | |
| 953 | |
| 954 | |
| 955 /************************************* | |
| 956 */ | |
| 957 | |
| 958 EnumDeclaration *Parser::parseEnum() | |
| 959 { EnumDeclaration *e; | |
| 960 Identifier *id; | |
| 961 Type *t; | |
| 962 Loc loc = this->loc; | |
| 963 | |
| 964 //printf("Parser::parseEnum()\n"); | |
| 965 nextToken(); | |
| 966 if (token.value == TOKidentifier) | |
| 967 { id = token.ident; | |
| 968 nextToken(); | |
| 969 } | |
| 970 else | |
| 971 id = NULL; | |
| 972 | |
| 973 if (token.value == TOKcolon) | |
| 974 { | |
| 975 nextToken(); | |
| 976 t = parseBasicType(); | |
| 977 } | |
| 978 else | |
| 979 t = NULL; | |
| 980 | |
| 981 e = new EnumDeclaration(loc, id, t); | |
| 982 if (token.value == TOKsemicolon && id) | |
| 983 nextToken(); | |
| 984 else if (token.value == TOKlcurly) | |
| 985 { | |
| 986 //printf("enum definition\n"); | |
| 987 e->members = new Array(); | |
| 988 nextToken(); | |
| 989 unsigned char *comment = token.blockComment; | |
| 990 while (token.value != TOKrcurly) | |
| 991 { | |
| 992 if (token.value == TOKidentifier) | |
| 993 { EnumMember *em; | |
| 994 Expression *value; | |
| 995 Identifier *ident; | |
| 996 | |
| 997 loc = this->loc; | |
| 998 ident = token.ident; | |
| 999 value = NULL; | |
| 1000 nextToken(); | |
| 1001 if (token.value == TOKassign) | |
| 1002 { | |
| 1003 nextToken(); | |
| 1004 value = parseAssignExp(); | |
| 1005 } | |
| 1006 em = new EnumMember(loc, ident, value); | |
| 1007 e->members->push(em); | |
| 1008 if (token.value == TOKrcurly) | |
| 1009 ; | |
| 1010 else | |
| 1011 { addComment(em, comment); | |
| 1012 comment = NULL; | |
| 1013 check(TOKcomma); | |
| 1014 } | |
| 1015 addComment(em, comment); | |
| 1016 comment = token.blockComment; | |
| 1017 } | |
| 1018 else | |
| 1019 { error("enum member expected"); | |
| 1020 nextToken(); | |
| 1021 } | |
| 1022 } | |
| 1023 nextToken(); | |
| 1024 } | |
| 1025 else | |
| 1026 error("enum declaration is invalid"); | |
| 1027 | |
| 1028 return e; | |
| 1029 } | |
| 1030 | |
| 1031 Dsymbol *Parser::parseAggregate() | |
| 1032 { AggregateDeclaration *a = NULL; | |
| 1033 int anon = 0; | |
| 1034 enum TOK tok; | |
| 1035 Identifier *id; | |
| 1036 TemplateParameters *tpl = NULL; | |
| 1037 | |
| 1038 //printf("Parser::parseAggregate()\n"); | |
| 1039 tok = token.value; | |
| 1040 nextToken(); | |
| 1041 if (token.value != TOKidentifier) | |
| 1042 { id = NULL; | |
| 1043 } | |
| 1044 else | |
| 1045 { id = token.ident; | |
| 1046 nextToken(); | |
| 1047 | |
| 1048 if (token.value == TOKlparen) | |
| 1049 { // Class template declaration. | |
| 1050 | |
| 1051 // Gather template parameter list | |
| 1052 tpl = parseTemplateParameterList(); | |
| 1053 } | |
| 1054 } | |
| 1055 | |
| 1056 Loc loc = this->loc; | |
| 1057 switch (tok) | |
| 1058 { case TOKclass: | |
| 1059 case TOKinterface: | |
| 1060 { | |
| 1061 if (!id) | |
| 1062 error("anonymous classes not allowed"); | |
| 1063 | |
| 1064 // Collect base class(es) | |
| 1065 BaseClasses *baseclasses = NULL; | |
| 1066 if (token.value == TOKcolon) | |
| 1067 { | |
| 1068 nextToken(); | |
| 1069 baseclasses = parseBaseClasses(); | |
| 1070 | |
| 1071 if (token.value != TOKlcurly) | |
| 1072 error("members expected"); | |
| 1073 } | |
| 1074 | |
| 1075 if (tok == TOKclass) | |
| 1076 a = new ClassDeclaration(loc, id, baseclasses); | |
| 1077 else | |
| 1078 a = new InterfaceDeclaration(loc, id, baseclasses); | |
| 1079 break; | |
| 1080 } | |
| 1081 | |
| 1082 case TOKstruct: | |
| 1083 if (id) | |
| 1084 a = new StructDeclaration(loc, id); | |
| 1085 else | |
| 1086 anon = 1; | |
| 1087 break; | |
| 1088 | |
| 1089 case TOKunion: | |
| 1090 if (id) | |
| 1091 a = new UnionDeclaration(loc, id); | |
| 1092 else | |
| 1093 anon = 2; | |
| 1094 break; | |
| 1095 | |
| 1096 default: | |
| 1097 assert(0); | |
| 1098 break; | |
| 1099 } | |
| 1100 if (a && token.value == TOKsemicolon) | |
| 1101 { nextToken(); | |
| 1102 } | |
| 1103 else if (token.value == TOKlcurly) | |
| 1104 { | |
| 1105 //printf("aggregate definition\n"); | |
| 1106 nextToken(); | |
| 1107 Array *decl = parseDeclDefs(0); | |
| 1108 if (token.value != TOKrcurly) | |
| 1109 error("} expected following member declarations in aggregate"); | |
| 1110 nextToken(); | |
| 1111 if (anon) | |
| 1112 { | |
| 1113 /* Anonymous structs/unions are more like attributes. | |
| 1114 */ | |
| 1115 return new AnonDeclaration(loc, anon - 1, decl); | |
| 1116 } | |
| 1117 else | |
| 1118 a->members = decl; | |
| 1119 } | |
| 1120 else | |
| 1121 { | |
| 1122 error("{ } expected following aggregate declaration"); | |
| 1123 a = new StructDeclaration(loc, NULL); | |
| 1124 } | |
| 1125 | |
| 1126 if (tpl) | |
| 1127 { Array *decldefs; | |
| 1128 TemplateDeclaration *tempdecl; | |
| 1129 | |
| 1130 // Wrap a template around the aggregate declaration | |
| 1131 decldefs = new Array(); | |
| 1132 decldefs->push(a); | |
| 1133 tempdecl = new TemplateDeclaration(loc, id, tpl, decldefs); | |
| 1134 return tempdecl; | |
| 1135 } | |
| 1136 | |
| 1137 return a; | |
| 1138 } | |
| 1139 | |
| 1140 /******************************************* | |
| 1141 */ | |
| 1142 | |
| 1143 BaseClasses *Parser::parseBaseClasses() | |
| 1144 { | |
| 1145 enum PROT protection = PROTpublic; | |
| 1146 BaseClasses *baseclasses = new BaseClasses(); | |
| 1147 | |
| 1148 for (; 1; nextToken()) | |
| 1149 { | |
| 1150 switch (token.value) | |
| 1151 { | |
| 1152 case TOKidentifier: | |
| 1153 break; | |
| 1154 case TOKprivate: | |
| 1155 protection = PROTprivate; | |
| 1156 continue; | |
| 1157 case TOKpackage: | |
| 1158 protection = PROTpackage; | |
| 1159 continue; | |
| 1160 case TOKprotected: | |
| 1161 protection = PROTprotected; | |
| 1162 continue; | |
| 1163 case TOKpublic: | |
| 1164 protection = PROTpublic; | |
| 1165 continue; | |
| 1166 default: | |
| 1167 error("base classes expected instead of %s", token.toChars()); | |
| 1168 return NULL; | |
| 1169 } | |
| 1170 BaseClass *b = new BaseClass(parseBasicType(), protection); | |
| 1171 baseclasses->push(b); | |
| 1172 if (token.value != TOKcomma) | |
| 1173 break; | |
| 1174 protection = PROTpublic; | |
| 1175 } | |
| 1176 return baseclasses; | |
| 1177 } | |
| 1178 | |
| 1179 /************************************** | |
| 1180 * Parse a TemplateDeclaration. | |
| 1181 */ | |
| 1182 | |
| 1183 TemplateDeclaration *Parser::parseTemplateDeclaration() | |
| 1184 { | |
| 1185 TemplateDeclaration *tempdecl; | |
| 1186 Identifier *id; | |
| 1187 TemplateParameters *tpl; | |
| 1188 Array *decldefs; | |
| 1189 Loc loc = this->loc; | |
| 1190 | |
| 1191 nextToken(); | |
| 1192 if (token.value != TOKidentifier) | |
| 1193 { error("TemplateIdentifier expected following template"); | |
| 1194 goto Lerr; | |
| 1195 } | |
| 1196 id = token.ident; | |
| 1197 nextToken(); | |
| 1198 tpl = parseTemplateParameterList(); | |
| 1199 if (!tpl) | |
| 1200 goto Lerr; | |
| 1201 | |
| 1202 if (token.value != TOKlcurly) | |
| 1203 { error("members of template declaration expected"); | |
| 1204 goto Lerr; | |
| 1205 } | |
| 1206 else | |
| 1207 { | |
| 1208 nextToken(); | |
| 1209 decldefs = parseDeclDefs(0); | |
| 1210 if (token.value != TOKrcurly) | |
| 1211 { error("template member expected"); | |
| 1212 goto Lerr; | |
| 1213 } | |
| 1214 nextToken(); | |
| 1215 } | |
| 1216 | |
| 1217 tempdecl = new TemplateDeclaration(loc, id, tpl, decldefs); | |
| 1218 return tempdecl; | |
| 1219 | |
| 1220 Lerr: | |
| 1221 return NULL; | |
| 1222 } | |
| 1223 | |
| 1224 /****************************************** | |
| 1225 * Parse template parameter list. | |
| 1226 */ | |
| 1227 | |
| 1228 TemplateParameters *Parser::parseTemplateParameterList() | |
| 1229 { | |
|
139
0ab29b838084
[svn r143] Fixed: a few bugs in debug information, still only line info, but should be correct files now :)
lindquist
parents:
92
diff
changeset
|
1230 TemplateParameters *tpl = new TemplateParameters(); |
| 1 | 1231 |
| 1232 if (token.value != TOKlparen) | |
| 1233 { error("parenthesized TemplateParameterList expected following TemplateIdentifier"); | |
| 1234 goto Lerr; | |
| 1235 } | |
| 1236 nextToken(); | |
| 1237 | |
| 1238 // Get array of TemplateParameters | |
| 1239 if (token.value != TOKrparen) | |
| 1240 { int isvariadic = 0; | |
| 1241 | |
| 1242 while (1) | |
| 1243 { TemplateParameter *tp; | |
| 1244 Identifier *tp_ident = NULL; | |
| 1245 Type *tp_spectype = NULL; | |
| 1246 Type *tp_valtype = NULL; | |
| 1247 Type *tp_defaulttype = NULL; | |
| 1248 Expression *tp_specvalue = NULL; | |
| 1249 Expression *tp_defaultvalue = NULL; | |
| 1250 Token *t; | |
| 1251 | |
| 1252 // Get TemplateParameter | |
| 1253 | |
| 1254 // First, look ahead to see if it is a TypeParameter or a ValueParameter | |
| 1255 t = peek(&token); | |
| 1256 if (token.value == TOKalias) | |
| 1257 { // AliasParameter | |
| 1258 nextToken(); | |
| 1259 if (token.value != TOKidentifier) | |
| 1260 { error("Identifier expected for template parameter"); | |
| 1261 goto Lerr; | |
| 1262 } | |
| 1263 tp_ident = token.ident; | |
| 1264 nextToken(); | |
| 1265 if (token.value == TOKcolon) // : Type | |
| 1266 { | |
| 1267 nextToken(); | |
| 1268 tp_spectype = parseBasicType(); | |
| 1269 tp_spectype = parseDeclarator(tp_spectype, NULL); | |
| 1270 } | |
| 1271 if (token.value == TOKassign) // = Type | |
| 1272 { | |
| 1273 nextToken(); | |
| 1274 tp_defaulttype = parseBasicType(); | |
| 1275 tp_defaulttype = parseDeclarator(tp_defaulttype, NULL); | |
| 1276 } | |
| 1277 tp = new TemplateAliasParameter(loc, tp_ident, tp_spectype, tp_defaulttype); | |
| 1278 } | |
| 1279 else if (t->value == TOKcolon || t->value == TOKassign || | |
| 1280 t->value == TOKcomma || t->value == TOKrparen) | |
| 1281 { // TypeParameter | |
| 1282 if (token.value != TOKidentifier) | |
| 1283 { error("Identifier expected for template parameter"); | |
| 1284 goto Lerr; | |
| 1285 } | |
| 1286 tp_ident = token.ident; | |
| 1287 nextToken(); | |
| 1288 if (token.value == TOKcolon) // : Type | |
| 1289 { | |
| 1290 nextToken(); | |
| 1291 tp_spectype = parseBasicType(); | |
| 1292 tp_spectype = parseDeclarator(tp_spectype, NULL); | |
| 1293 } | |
| 1294 if (token.value == TOKassign) // = Type | |
| 1295 { | |
| 1296 nextToken(); | |
| 1297 tp_defaulttype = parseBasicType(); | |
| 1298 tp_defaulttype = parseDeclarator(tp_defaulttype, NULL); | |
| 1299 } | |
| 1300 tp = new TemplateTypeParameter(loc, tp_ident, tp_spectype, tp_defaulttype); | |
| 1301 } | |
| 1302 else if (token.value == TOKidentifier && t->value == TOKdotdotdot) | |
| 1303 { // ident... | |
| 1304 if (isvariadic) | |
| 1305 error("variadic template parameter must be last"); | |
| 1306 isvariadic = 1; | |
| 1307 tp_ident = token.ident; | |
| 1308 nextToken(); | |
| 1309 nextToken(); | |
| 1310 tp = new TemplateTupleParameter(loc, tp_ident); | |
| 1311 } | |
| 1312 else | |
| 1313 { // ValueParameter | |
| 1314 tp_valtype = parseBasicType(); | |
| 1315 tp_valtype = parseDeclarator(tp_valtype, &tp_ident); | |
| 1316 if (!tp_ident) | |
| 1317 { | |
| 1318 error("no identifier for template value parameter"); | |
|
139
0ab29b838084
[svn r143] Fixed: a few bugs in debug information, still only line info, but should be correct files now :)
lindquist
parents:
92
diff
changeset
|
1319 tp_ident = new Identifier("error", TOKidentifier); |
| 1 | 1320 } |
| 1321 if (token.value == TOKcolon) // : CondExpression | |
| 1322 { | |
| 1323 nextToken(); | |
| 1324 tp_specvalue = parseCondExp(); | |
| 1325 } | |
| 1326 if (token.value == TOKassign) // = CondExpression | |
| 1327 { | |
| 1328 nextToken(); | |
| 1329 tp_defaultvalue = parseCondExp(); | |
| 1330 } | |
| 1331 tp = new TemplateValueParameter(loc, tp_ident, tp_valtype, tp_specvalue, tp_defaultvalue); | |
| 1332 } | |
| 1333 tpl->push(tp); | |
| 1334 if (token.value != TOKcomma) | |
| 1335 break; | |
| 1336 nextToken(); | |
| 1337 } | |
| 1338 } | |
| 1339 check(TOKrparen); | |
|
139
0ab29b838084
[svn r143] Fixed: a few bugs in debug information, still only line info, but should be correct files now :)
lindquist
parents:
92
diff
changeset
|
1340 Lerr: |
| 1 | 1341 return tpl; |
| 1342 } | |
| 1343 | |
| 1344 /****************************************** | |
| 1345 * Parse template mixin. | |
| 1346 * mixin Foo; | |
| 1347 * mixin Foo!(args); | |
| 1348 * mixin a.b.c!(args).Foo!(args); | |
| 1349 * mixin Foo!(args) identifier; | |
| 1350 * mixin typeof(expr).identifier!(args); | |
| 1351 */ | |
| 1352 | |
| 1353 Dsymbol *Parser::parseMixin() | |
| 1354 { | |
| 1355 TemplateMixin *tm; | |
| 1356 Identifier *id; | |
| 1357 Type *tqual; | |
| 1358 Objects *tiargs; | |
| 1359 Array *idents; | |
| 1360 | |
| 1361 //printf("parseMixin()\n"); | |
| 1362 nextToken(); | |
| 1363 tqual = NULL; | |
| 1364 if (token.value == TOKdot) | |
| 1365 { | |
| 1366 id = Id::empty; | |
| 1367 } | |
| 1368 else | |
| 1369 { | |
| 1370 if (token.value == TOKtypeof) | |
| 1371 { Expression *exp; | |
| 1372 | |
| 1373 nextToken(); | |
| 1374 check(TOKlparen); | |
| 1375 exp = parseExpression(); | |
| 1376 check(TOKrparen); | |
| 1377 tqual = new TypeTypeof(loc, exp); | |
| 1378 check(TOKdot); | |
| 1379 } | |
| 1380 if (token.value != TOKidentifier) | |
| 1381 { | |
| 1382 error("identifier expected, not %s", token.toChars()); | |
| 1383 goto Lerr; | |
| 1384 } | |
| 1385 id = token.ident; | |
| 1386 nextToken(); | |
| 1387 } | |
| 1388 | |
| 1389 idents = new Array(); | |
| 1390 while (1) | |
| 1391 { | |
| 1392 tiargs = NULL; | |
| 1393 if (token.value == TOKnot) | |
| 1394 { | |
| 1395 nextToken(); | |
| 1396 tiargs = parseTemplateArgumentList(); | |
| 1397 } | |
| 1398 | |
| 1399 if (token.value != TOKdot) | |
| 1400 break; | |
| 1401 | |
| 1402 if (tiargs) | |
| 1403 { TemplateInstance *tempinst = new TemplateInstance(loc, id); | |
| 1404 tempinst->tiargs = tiargs; | |
| 1405 id = (Identifier *)tempinst; | |
| 1406 tiargs = NULL; | |
| 1407 } | |
| 1408 idents->push(id); | |
| 1409 | |
| 1410 nextToken(); | |
| 1411 if (token.value != TOKidentifier) | |
| 1412 { error("identifier expected following '.' instead of '%s'", token.toChars()); | |
| 1413 break; | |
| 1414 } | |
| 1415 id = token.ident; | |
| 1416 nextToken(); | |
| 1417 } | |
| 1418 idents->push(id); | |
| 1419 | |
| 1420 if (token.value == TOKidentifier) | |
| 1421 { | |
| 1422 id = token.ident; | |
| 1423 nextToken(); | |
| 1424 } | |
| 1425 else | |
| 1426 id = NULL; | |
| 1427 | |
| 1428 tm = new TemplateMixin(loc, id, tqual, idents, tiargs); | |
| 1429 if (token.value != TOKsemicolon) | |
| 1430 error("';' expected after mixin"); | |
| 1431 nextToken(); | |
| 1432 | |
| 1433 return tm; | |
| 1434 | |
| 1435 Lerr: | |
| 1436 return NULL; | |
| 1437 } | |
| 1438 | |
| 1439 /****************************************** | |
| 1440 * Parse template argument list. | |
| 1441 * Input: | |
| 1442 * current token is opening '(' | |
| 1443 * Output: | |
| 1444 * current token is one after closing ')' | |
| 1445 */ | |
| 1446 | |
| 1447 Objects *Parser::parseTemplateArgumentList() | |
| 1448 { | |
| 1449 //printf("Parser::parseTemplateArgumentList()\n"); | |
| 1450 Objects *tiargs = new Objects(); | |
| 1451 if (token.value != TOKlparen) | |
| 1452 { error("!(TemplateArgumentList) expected following TemplateIdentifier"); | |
| 1453 return tiargs; | |
| 1454 } | |
| 1455 nextToken(); | |
| 1456 | |
| 1457 // Get TemplateArgumentList | |
| 1458 if (token.value != TOKrparen) | |
| 1459 { | |
| 1460 while (1) | |
| 1461 { | |
| 1462 // See if it is an Expression or a Type | |
| 1463 if (isDeclaration(&token, 0, TOKreserved, NULL)) | |
| 1464 { // Type | |
| 1465 Type *ta; | |
| 1466 | |
| 1467 // Get TemplateArgument | |
| 1468 ta = parseBasicType(); | |
| 1469 ta = parseDeclarator(ta, NULL); | |
| 1470 tiargs->push(ta); | |
| 1471 } | |
| 1472 else | |
| 1473 { // Expression | |
| 1474 Expression *ea; | |
| 1475 | |
| 1476 ea = parseAssignExp(); | |
| 1477 tiargs->push(ea); | |
| 1478 } | |
| 1479 if (token.value != TOKcomma) | |
| 1480 break; | |
| 1481 nextToken(); | |
| 1482 } | |
| 1483 } | |
| 1484 check(TOKrparen, "template argument list"); | |
| 1485 return tiargs; | |
| 1486 } | |
| 1487 | |
| 1488 Import *Parser::parseImport(Array *decldefs, int isstatic) | |
| 1489 { Import *s; | |
| 1490 Identifier *id; | |
| 1491 Identifier *aliasid = NULL; | |
| 1492 Array *a; | |
| 1493 Loc loc; | |
| 1494 | |
| 1495 //printf("Parser::parseImport()\n"); | |
| 1496 do | |
| 1497 { | |
| 1498 L1: | |
| 1499 nextToken(); | |
| 1500 if (token.value != TOKidentifier) | |
| 1501 { error("Identifier expected following import"); | |
| 1502 break; | |
| 1503 } | |
| 1504 | |
| 1505 loc = this->loc; | |
| 1506 a = NULL; | |
| 1507 id = token.ident; | |
| 1508 nextToken(); | |
| 1509 if (!aliasid && token.value == TOKassign) | |
| 1510 { | |
| 1511 aliasid = id; | |
| 1512 goto L1; | |
| 1513 } | |
| 1514 while (token.value == TOKdot) | |
| 1515 { | |
| 1516 if (!a) | |
| 1517 a = new Array(); | |
| 1518 a->push(id); | |
| 1519 nextToken(); | |
| 1520 if (token.value != TOKidentifier) | |
| 1521 { error("Identifier expected following package"); | |
| 1522 break; | |
| 1523 } | |
| 1524 id = token.ident; | |
| 1525 nextToken(); | |
| 1526 } | |
| 1527 | |
| 1528 s = new Import(loc, a, token.ident, aliasid, isstatic); | |
| 1529 decldefs->push(s); | |
| 1530 | |
| 1531 /* Look for | |
| 1532 * : alias=name, alias=name; | |
| 1533 * syntax. | |
| 1534 */ | |
| 1535 if (token.value == TOKcolon) | |
| 1536 { | |
| 1537 do | |
| 1538 { Identifier *name; | |
| 1539 Identifier *alias; | |
| 1540 | |
| 1541 nextToken(); | |
| 1542 if (token.value != TOKidentifier) | |
| 1543 { error("Identifier expected following :"); | |
| 1544 break; | |
| 1545 } | |
| 1546 alias = token.ident; | |
| 1547 nextToken(); | |
| 1548 if (token.value == TOKassign) | |
| 1549 { | |
| 1550 nextToken(); | |
| 1551 if (token.value != TOKidentifier) | |
| 1552 { error("Identifier expected following %s=", alias->toChars()); | |
| 1553 break; | |
| 1554 } | |
| 1555 name = token.ident; | |
| 1556 nextToken(); | |
| 1557 } | |
| 1558 else | |
| 1559 { name = alias; | |
| 1560 alias = NULL; | |
| 1561 } | |
| 1562 s->addAlias(name, alias); | |
| 1563 } while (token.value == TOKcomma); | |
| 1564 break; // no comma-separated imports of this form | |
| 1565 } | |
| 1566 | |
| 1567 aliasid = NULL; | |
| 1568 } while (token.value == TOKcomma); | |
| 1569 | |
| 1570 if (token.value == TOKsemicolon) | |
| 1571 nextToken(); | |
| 1572 else | |
| 1573 { | |
| 1574 error("';' expected"); | |
| 1575 nextToken(); | |
| 1576 } | |
| 1577 | |
| 1578 return NULL; | |
| 1579 } | |
| 1580 | |
| 1581 Type *Parser::parseBasicType() | |
| 1582 { Type *t; | |
| 1583 Identifier *id; | |
| 1584 TypeQualified *tid; | |
| 1585 TemplateInstance *tempinst; | |
| 1586 | |
| 1587 //printf("parseBasicType()\n"); | |
| 1588 switch (token.value) | |
| 1589 { | |
| 1590 CASE_BASIC_TYPES_X(t): | |
| 1591 nextToken(); | |
| 1592 break; | |
| 1593 | |
| 1594 case TOKidentifier: | |
| 1595 id = token.ident; | |
| 1596 nextToken(); | |
| 1597 if (token.value == TOKnot) | |
| 1598 { | |
| 1599 nextToken(); | |
| 1600 tempinst = new TemplateInstance(loc, id); | |
| 1601 tempinst->tiargs = parseTemplateArgumentList(); | |
| 1602 tid = new TypeInstance(loc, tempinst); | |
| 1603 goto Lident2; | |
| 1604 } | |
| 1605 Lident: | |
| 1606 tid = new TypeIdentifier(loc, id); | |
| 1607 Lident2: | |
| 1608 while (token.value == TOKdot) | |
| 1609 { nextToken(); | |
| 1610 if (token.value != TOKidentifier) | |
| 1611 { error("identifier expected following '.' instead of '%s'", token.toChars()); | |
| 1612 break; | |
| 1613 } | |
| 1614 id = token.ident; | |
| 1615 nextToken(); | |
| 1616 if (token.value == TOKnot) | |
| 1617 { | |
| 1618 nextToken(); | |
| 1619 tempinst = new TemplateInstance(loc, id); | |
| 1620 tempinst->tiargs = parseTemplateArgumentList(); | |
| 1621 tid->addIdent((Identifier *)tempinst); | |
| 1622 } | |
| 1623 else | |
| 1624 tid->addIdent(id); | |
| 1625 } | |
| 1626 t = tid; | |
| 1627 break; | |
| 1628 | |
| 1629 case TOKdot: | |
| 1630 id = Id::empty; | |
| 1631 goto Lident; | |
| 1632 | |
| 1633 case TOKtypeof: | |
| 1634 { Expression *exp; | |
| 1635 | |
| 1636 nextToken(); | |
| 1637 check(TOKlparen); | |
| 1638 exp = parseExpression(); | |
| 1639 check(TOKrparen); | |
| 1640 tid = new TypeTypeof(loc, exp); | |
| 1641 goto Lident2; | |
| 1642 } | |
| 1643 | |
| 1644 default: | |
| 1645 error("basic type expected, not %s", token.toChars()); | |
| 1646 t = Type::tint32; | |
| 1647 break; | |
| 1648 } | |
| 1649 return t; | |
| 1650 } | |
| 1651 | |
| 1652 Type *Parser::parseBasicType2(Type *t) | |
| 1653 { | |
| 1654 Type *ts; | |
| 1655 Type *ta; | |
| 1656 | |
| 1657 //printf("parseBasicType2()\n"); | |
| 1658 while (1) | |
| 1659 { | |
| 1660 switch (token.value) | |
| 1661 { | |
| 1662 case TOKmul: | |
| 1663 t = new TypePointer(t); | |
| 1664 nextToken(); | |
| 1665 continue; | |
| 1666 | |
| 1667 case TOKlbracket: | |
| 1668 #if LTORARRAYDECL | |
| 1669 // Handle []. Make sure things like | |
| 1670 // int[3][1] a; | |
| 1671 // is (array[1] of array[3] of int) | |
| 1672 nextToken(); | |
| 1673 if (token.value == TOKrbracket) | |
| 1674 { | |
| 1675 t = new TypeDArray(t); // [] | |
| 1676 nextToken(); | |
| 1677 } | |
| 1678 else if (isDeclaration(&token, 0, TOKrbracket, NULL)) | |
| 1679 { // It's an associative array declaration | |
| 1680 Type *index; | |
| 1681 | |
| 1682 //printf("it's an associative array\n"); | |
| 1683 index = parseBasicType(); | |
| 1684 index = parseDeclarator(index, NULL); // [ type ] | |
| 1685 t = new TypeAArray(t, index); | |
| 1686 check(TOKrbracket); | |
| 1687 } | |
| 1688 else | |
| 1689 { | |
| 1690 //printf("it's [expression]\n"); | |
| 1691 inBrackets++; | |
| 1692 Expression *e = parseExpression(); // [ expression ] | |
| 1693 if (token.value == TOKslice) | |
| 1694 { Expression *e2; | |
| 1695 | |
| 1696 nextToken(); | |
| 1697 e2 = parseExpression(); // [ exp .. exp ] | |
| 1698 t = new TypeSlice(t, e, e2); | |
| 1699 } | |
| 1700 else | |
| 1701 t = new TypeSArray(t,e); | |
| 1702 inBrackets--; | |
| 1703 check(TOKrbracket); | |
| 1704 } | |
| 1705 continue; | |
| 1706 #else | |
| 1707 // Handle []. Make sure things like | |
| 1708 // int[3][1] a; | |
| 1709 // is (array[3] of array[1] of int) | |
| 1710 ts = t; | |
| 1711 while (token.value == TOKlbracket) | |
| 1712 { | |
| 1713 nextToken(); | |
| 1714 if (token.value == TOKrbracket) | |
| 1715 { | |
| 1716 ta = new TypeDArray(t); // [] | |
| 1717 nextToken(); | |
| 1718 } | |
| 1719 else if (isDeclaration(&token, 0, TOKrbracket, NULL)) | |
| 1720 { // It's an associative array declaration | |
| 1721 Type *index; | |
| 1722 | |
| 1723 //printf("it's an associative array\n"); | |
| 1724 index = parseBasicType(); | |
| 1725 index = parseDeclarator(index, NULL); // [ type ] | |
| 1726 check(TOKrbracket); | |
| 1727 ta = new TypeAArray(t, index); | |
| 1728 } | |
| 1729 else | |
| 1730 { | |
| 1731 //printf("it's [expression]\n"); | |
| 1732 Expression *e = parseExpression(); // [ expression ] | |
| 1733 ta = new TypeSArray(t,e); | |
| 1734 check(TOKrbracket); | |
| 1735 } | |
| 1736 Type **pt; | |
| 1737 for (pt = &ts; *pt != t; pt = &(*pt)->next) | |
| 1738 ; | |
| 1739 *pt = ta; | |
| 1740 } | |
| 1741 t = ts; | |
| 1742 continue; | |
| 1743 #endif | |
| 1744 | |
| 1745 case TOKdelegate: | |
| 1746 case TOKfunction: | |
| 1747 { // Handle delegate declaration: | |
| 1748 // t delegate(parameter list) | |
| 1749 // t function(parameter list) | |
| 1750 Arguments *arguments; | |
| 1751 int varargs; | |
| 1752 enum TOK save = token.value; | |
| 1753 | |
| 1754 nextToken(); | |
| 1755 arguments = parseParameters(&varargs); | |
| 1756 t = new TypeFunction(arguments, t, varargs, linkage); | |
| 1757 if (save == TOKdelegate) | |
| 1758 t = new TypeDelegate(t); | |
| 1759 else | |
| 1760 t = new TypePointer(t); // pointer to function | |
| 1761 continue; | |
| 1762 } | |
| 1763 | |
| 1764 default: | |
| 1765 ts = t; | |
| 1766 break; | |
| 1767 } | |
| 1768 break; | |
| 1769 } | |
| 1770 return ts; | |
| 1771 } | |
| 1772 | |
| 1773 Type *Parser::parseDeclarator(Type *t, Identifier **pident, TemplateParameters **tpl) | |
| 1774 { Type *ts; | |
| 1775 Type *ta; | |
| 1776 | |
| 1777 //printf("parseDeclarator(tpl = %p)\n", tpl); | |
| 1778 t = parseBasicType2(t); | |
| 1779 | |
| 1780 switch (token.value) | |
| 1781 { | |
| 1782 | |
| 1783 case TOKidentifier: | |
| 1784 if (pident) | |
| 1785 *pident = token.ident; | |
| 1786 else | |
| 1787 error("unexpected identifer '%s' in declarator", token.ident->toChars()); | |
| 1788 ts = t; | |
| 1789 nextToken(); | |
| 1790 break; | |
| 1791 | |
| 1792 case TOKlparen: | |
| 1793 nextToken(); | |
| 1794 ts = parseDeclarator(t, pident); | |
| 1795 check(TOKrparen); | |
| 1796 break; | |
| 1797 | |
| 1798 default: | |
| 1799 ts = t; | |
| 1800 break; | |
| 1801 } | |
| 1802 | |
| 1803 while (1) | |
| 1804 { | |
| 1805 switch (token.value) | |
| 1806 { | |
| 1807 #if CARRAYDECL | |
| 1808 case TOKlbracket: | |
| 1809 { // This is the old C-style post [] syntax. | |
| 1810 nextToken(); | |
| 1811 if (token.value == TOKrbracket) | |
| 1812 { | |
| 1813 ta = new TypeDArray(t); // [] | |
| 1814 nextToken(); | |
| 1815 } | |
| 1816 else if (isDeclaration(&token, 0, TOKrbracket, NULL)) | |
| 1817 { // It's an associative array declaration | |
| 1818 Type *index; | |
| 1819 | |
| 1820 //printf("it's an associative array\n"); | |
| 1821 index = parseBasicType(); | |
| 1822 index = parseDeclarator(index, NULL); // [ type ] | |
| 1823 check(TOKrbracket); | |
| 1824 ta = new TypeAArray(t, index); | |
| 1825 } | |
| 1826 else | |
| 1827 { | |
| 1828 //printf("it's [expression]\n"); | |
| 1829 Expression *e = parseExpression(); // [ expression ] | |
| 1830 ta = new TypeSArray(t, e); | |
| 1831 check(TOKrbracket); | |
| 1832 } | |
| 1833 Type **pt; | |
| 1834 for (pt = &ts; *pt != t; pt = &(*pt)->next) | |
| 1835 ; | |
| 1836 *pt = ta; | |
| 1837 continue; | |
| 1838 } | |
| 1839 #endif | |
| 1840 case TOKlparen: | |
| 1841 { Arguments *arguments; | |
| 1842 int varargs; | |
| 1843 | |
| 1844 if (tpl) | |
| 1845 { | |
| 1846 /* Look ahead to see if this is (...)(...), | |
| 1847 * i.e. a function template declaration | |
| 1848 */ | |
| 1849 if (peekPastParen(&token)->value == TOKlparen) | |
| 1850 { // It's a function template declaration | |
| 1851 //printf("function template declaration\n"); | |
| 1852 | |
| 1853 // Gather template parameter list | |
| 1854 *tpl = parseTemplateParameterList(); | |
| 1855 } | |
| 1856 } | |
| 1857 | |
| 1858 arguments = parseParameters(&varargs); | |
|
35
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
1859 Type *ta = new TypeFunction(arguments, t, varargs, linkage); |
|
3cfcb944304e
[svn r39] * Updated to DMD 1.022 with the exception of:
lindquist
parents:
19
diff
changeset
|
1860 Type **pt; |
| 1 | 1861 for (pt = &ts; *pt != t; pt = &(*pt)->next) |
| 1862 ; | |
| 1863 *pt = ta; | |
| 1864 break; | |
| 1865 } | |
| 1866 } | |
| 1867 break; | |
| 1868 } | |
| 1869 | |
| 1870 return ts; | |
| 1871 } | |
| 1872 | |
| 1873 /********************************** | |
| 1874 * Return array of Declaration *'s. | |
| 1875 */ | |
| 1876 | |
| 1877 Array *Parser::parseDeclarations() | |
| 1878 { | |
| 1879 enum STC storage_class; | |
| 1880 enum STC stc; | |
| 1881 Type *ts; | |
| 1882 Type *t; | |
| 1883 Type *tfirst; | |
| 1884 Identifier *ident; | |
| 1885 Array *a; | |
| 1886 enum TOK tok; | |
| 1887 unsigned char *comment = token.blockComment; | |
| 1888 enum LINK link = linkage; | |
| 1889 | |
| 1890 //printf("parseDeclarations()\n"); | |
| 1891 switch (token.value) | |
| 1892 { | |
| 1893 case TOKtypedef: | |
| 1894 case TOKalias: | |
| 1895 tok = token.value; | |
| 1896 nextToken(); | |
| 1897 break; | |
| 1898 | |
| 1899 default: | |
| 1900 tok = TOKreserved; | |
| 1901 break; | |
| 1902 } | |
| 1903 | |
| 1904 storage_class = STCundefined; | |
| 1905 while (1) | |
| 1906 { | |
| 1907 switch (token.value) | |
| 1908 { | |
| 1909 case TOKconst: stc = STCconst; goto L1; | |
| 1910 case TOKstatic: stc = STCstatic; goto L1; | |
| 1911 case TOKfinal: stc = STCfinal; goto L1; | |
| 1912 case TOKauto: stc = STCauto; goto L1; | |
| 1913 case TOKscope: stc = STCscope; goto L1; | |
| 1914 case TOKoverride: stc = STCoverride; goto L1; | |
| 1915 case TOKabstract: stc = STCabstract; goto L1; | |
| 1916 case TOKsynchronized: stc = STCsynchronized; goto L1; | |
| 1917 case TOKdeprecated: stc = STCdeprecated; goto L1; | |
| 1918 L1: | |
| 1919 if (storage_class & stc) | |
| 1920 error("redundant storage class '%s'", token.toChars()); | |
| 1921 storage_class = (STC) (storage_class | stc); | |
| 1922 nextToken(); | |
| 1923 continue; | |
| 1924 | |
| 1925 case TOKextern: | |
| 1926 if (peek(&token)->value != TOKlparen) | |
| 1927 { stc = STCextern; | |
| 1928 goto L1; | |
| 1929 } | |
| 1930 | |
| 1931 link = parseLinkage(); | |
| 1932 continue; | |
| 1933 | |
| 1934 default: | |
| 1935 break; | |
| 1936 } | |
| 1937 break; | |
| 1938 } | |
| 1939 | |
| 1940 a = new Array(); | |
| 1941 | |
| 1942 /* Look for auto initializers: | |
| 1943 * storage_class identifier = initializer; | |
| 1944 */ | |
| 1945 while (storage_class && | |
| 1946 token.value == TOKidentifier && | |
| 1947 peek(&token)->value == TOKassign) | |
| 1948 { | |
| 1949 ident = token.ident; | |
| 1950 nextToken(); | |
| 1951 nextToken(); | |
| 1952 Initializer *init = parseInitializer(); | |
| 1953 VarDeclaration *v = new VarDeclaration(loc, NULL, ident, init); | |
| 1954 v->storage_class = storage_class; | |
| 1955 a->push(v); | |
| 1956 if (token.value == TOKsemicolon) | |
| 1957 { | |
| 1958 nextToken(); | |
| 1959 addComment(v, comment); | |
| 1960 } | |
| 1961 else if (token.value == TOKcomma) | |
| 1962 { | |
| 1963 nextToken(); | |
| 1964 if (!(token.value == TOKidentifier && peek(&token)->value == TOKassign)) | |
| 1965 { | |
| 1966 error("Identifier expected following comma"); | |
| 1967 } | |
| 1968 else | |
| 1969 continue; | |
| 1970 } | |
| 1971 else | |
| 1972 error("semicolon expected following auto declaration, not '%s'", token.toChars()); | |
| 1973 return a; | |
| 1974 } | |
| 1975 | |
| 1976 if (token.value == TOKclass) | |
| 1977 { AggregateDeclaration *s; | |
| 1978 | |
| 1979 s = (AggregateDeclaration *)parseAggregate(); | |
| 1980 s->storage_class |= storage_class; | |
| 1981 a->push(s); | |
| 1982 addComment(s, comment); | |
| 1983 return a; | |
| 1984 } | |
| 1985 | |
| 1986 ts = parseBasicType(); | |
| 1987 ts = parseBasicType2(ts); | |
| 1988 tfirst = NULL; | |
| 1989 | |
| 1990 while (1) | |
| 1991 { | |
| 1992 Loc loc = this->loc; | |
| 1993 TemplateParameters *tpl = NULL; | |
| 1994 | |
| 1995 ident = NULL; | |
| 1996 t = parseDeclarator(ts, &ident, &tpl); | |
| 1997 assert(t); | |
| 1998 if (!tfirst) | |
| 1999 tfirst = t; | |
| 2000 else if (t != tfirst) | |
| 2001 error("multiple declarations must have the same type, not %s and %s", | |
| 2002 tfirst->toChars(), t->toChars()); | |
| 2003 if (!ident) | |
| 2004 error("no identifier for declarator %s", t->toChars()); | |
| 2005 | |
| 2006 if (tok == TOKtypedef || tok == TOKalias) | |
| 2007 { Declaration *v; | |
| 2008 Initializer *init; | |
| 2009 | |
| 2010 init = NULL; | |
| 2011 if (token.value == TOKassign) | |
| 2012 { | |
| 2013 nextToken(); | |
| 2014 init = parseInitializer(); | |
| 2015 } | |
| 2016 if (tok == TOKtypedef) | |
| 2017 v = new TypedefDeclaration(loc, ident, t, init); | |
| 2018 else | |
| 2019 { if (init) | |
| 2020 error("alias cannot have initializer"); | |
| 2021 v = new AliasDeclaration(loc, ident, t); | |
| 2022 } | |
| 2023 v->storage_class = storage_class; | |
| 2024 if (link == linkage) | |
| 2025 a->push(v); | |
| 2026 else | |
| 2027 { | |
| 2028 Array *ax = new Array(); | |
| 2029 ax->push(v); | |
| 2030 Dsymbol *s = new LinkDeclaration(link, ax); | |
| 2031 a->push(s); | |
| 2032 } | |
| 2033 switch (token.value) | |
| 2034 { case TOKsemicolon: | |
| 2035 nextToken(); | |
| 2036 addComment(v, comment); | |
| 2037 break; | |
| 2038 | |
| 2039 case TOKcomma: | |
| 2040 nextToken(); | |
| 2041 addComment(v, comment); | |
| 2042 continue; | |
| 2043 | |
| 2044 default: | |
| 2045 error("semicolon expected to close %s declaration", Token::toChars(tok)); | |
| 2046 break; | |
| 2047 } | |
| 2048 } | |
| 2049 else if (t->ty == Tfunction) | |
| 2050 { FuncDeclaration *f; | |
| 2051 Dsymbol *s; | |
| 2052 | |
| 2053 f = new FuncDeclaration(loc, 0, ident, storage_class, t); | |
| 2054 addComment(f, comment); | |
| 2055 parseContracts(f); | |
| 2056 addComment(f, NULL); | |
| 2057 if (link == linkage) | |
| 2058 { | |
| 2059 s = f; | |
| 2060 } | |
| 2061 else | |
| 2062 { | |
| 2063 Array *ax = new Array(); | |
| 2064 ax->push(f); | |
| 2065 s = new LinkDeclaration(link, ax); | |
| 2066 } | |
| 2067 if (tpl) // it's a function template | |
| 2068 { Array *decldefs; | |
| 2069 TemplateDeclaration *tempdecl; | |
| 2070 | |
| 2071 // Wrap a template around the aggregate declaration | |
| 2072 decldefs = new Array(); | |
| 2073 decldefs->push(s); | |
| 2074 tempdecl = new TemplateDeclaration(loc, s->ident, tpl, decldefs); | |
| 2075 s = tempdecl; | |
| 2076 } | |
| 2077 addComment(s, comment); | |
| 2078 a->push(s); | |
| 2079 } | |
| 2080 else | |
| 2081 { VarDeclaration *v; | |
| 2082 Initializer *init; | |
| 2083 | |
| 2084 init = NULL; | |
| 2085 if (token.value == TOKassign) | |
| 2086 { | |
| 2087 nextToken(); | |
| 2088 init = parseInitializer(); | |
| 2089 } | |
| 2090 v = new VarDeclaration(loc, t, ident, init); | |
| 2091 v->storage_class = storage_class; | |
| 2092 if (link == linkage) | |
| 2093 a->push(v); | |
| 2094 else | |
| 2095 { | |
| 2096 Array *ax = new Array(); | |
| 2097 ax->push(v); | |
| 2098 Dsymbol *s = new LinkDeclaration(link, ax); | |
| 2099 a->push(s); | |
| 2100 } | |
| 2101 switch (token.value) | |
| 2102 { case TOKsemicolon: | |
| 2103 nextToken(); | |
| 2104 addComment(v, comment); | |
| 2105 break; | |
| 2106 | |
| 2107 case TOKcomma: | |
| 2108 nextToken(); | |
| 2109 addComment(v, comment); | |
| 2110 continue; | |
| 2111 | |
| 2112 default: | |
| 2113 error("semicolon expected, not '%s'", token.toChars()); | |
| 2114 break; | |
| 2115 } | |
| 2116 } | |
| 2117 break; | |
| 2118 } | |
| 2119 return a; | |
| 2120 } | |
| 2121 | |
| 2122 /***************************************** | |
| 2123 * Parse contracts following function declaration. | |
| 2124 */ | |
| 2125 | |
| 2126 void Parser::parseContracts(FuncDeclaration *f) | |
| 2127 { | |
| 2128 Type *tb; | |
| 2129 enum LINK linksave = linkage; | |
| 2130 | |
| 2131 // The following is irrelevant, as it is overridden by sc->linkage in | |
| 2132 // TypeFunction::semantic | |
| 2133 linkage = LINKd; // nested functions have D linkage | |
| 2134 L1: | |
| 2135 switch (token.value) | |
| 2136 { | |
| 2137 case TOKlcurly: | |
| 2138 if (f->frequire || f->fensure) | |
| 2139 error("missing body { ... } after in or out"); | |
| 2140 f->fbody = parseStatement(PSsemi); | |
| 2141 f->endloc = endloc; | |
| 2142 break; | |
| 2143 | |
| 2144 case TOKbody: | |
| 2145 nextToken(); | |
| 2146 f->fbody = parseStatement(PScurly); | |
| 2147 f->endloc = endloc; | |
| 2148 break; | |
| 2149 | |
| 2150 case TOKsemicolon: | |
| 2151 if (f->frequire || f->fensure) | |
| 2152 error("missing body { ... } after in or out"); | |
| 2153 nextToken(); | |
| 2154 break; | |
| 2155 | |
| 2156 #if 0 // Do we want this for function declarations, so we can do: | |
| 2157 // int x, y, foo(), z; | |
| 2158 case TOKcomma: | |
| 2159 nextToken(); | |
| 2160 continue; | |
| 2161 #endif | |
| 2162 | |
| 2163 #if 0 // Dumped feature | |
| 2164 case TOKthrow: | |
| 2165 if (!f->fthrows) | |
| 2166 f->fthrows = new Array(); | |
| 2167 nextToken(); | |
| 2168 check(TOKlparen); | |
| 2169 while (1) | |
| 2170 { | |
| 2171 tb = parseBasicType(); | |
| 2172 f->fthrows->push(tb); | |
| 2173 if (token.value == TOKcomma) | |
| 2174 { nextToken(); | |
| 2175 continue; | |
| 2176 } | |
| 2177 break; | |
| 2178 } | |
| 2179 check(TOKrparen); | |
| 2180 goto L1; | |
| 2181 #endif | |
| 2182 | |
| 2183 case TOKin: | |
| 2184 nextToken(); | |
| 2185 if (f->frequire) | |
| 2186 error("redundant 'in' statement"); | |
| 2187 f->frequire = parseStatement(PScurly | PSscope); | |
| 2188 goto L1; | |
| 2189 | |
| 2190 case TOKout: | |
| 2191 // parse: out (identifier) { statement } | |
| 2192 nextToken(); | |
| 2193 if (token.value != TOKlcurly) | |
| 2194 { | |
| 2195 check(TOKlparen); | |
| 2196 if (token.value != TOKidentifier) | |
| 2197 error("(identifier) following 'out' expected, not %s", token.toChars()); | |
| 2198 f->outId = token.ident; | |
| 2199 nextToken(); | |
| 2200 check(TOKrparen); | |
| 2201 } | |
| 2202 if (f->fensure) | |
| 2203 error("redundant 'out' statement"); | |
| 2204 f->fensure = parseStatement(PScurly | PSscope); | |
| 2205 goto L1; | |
| 2206 | |
| 2207 default: | |
| 2208 error("semicolon expected following function declaration"); | |
| 2209 break; | |
| 2210 } | |
| 2211 linkage = linksave; | |
| 2212 } | |
| 2213 | |
| 2214 /***************************************** | |
| 2215 */ | |
| 2216 | |
| 2217 Initializer *Parser::parseInitializer() | |
| 2218 { | |
| 2219 StructInitializer *is; | |
| 2220 ArrayInitializer *ia; | |
| 2221 ExpInitializer *ie; | |
| 2222 Expression *e; | |
| 2223 Identifier *id; | |
| 2224 Initializer *value; | |
| 2225 int comma; | |
| 2226 Loc loc = this->loc; | |
| 2227 Token *t; | |
| 2228 int braces; | |
| 2229 | |
| 2230 switch (token.value) | |
| 2231 { | |
| 2232 case TOKlcurly: | |
| 2233 /* Scan ahead to see if it is a struct initializer or | |
| 2234 * a function literal. | |
| 2235 * If it contains a ';', it is a function literal. | |
| 2236 * Treat { } as a struct initializer. | |
| 2237 */ | |
| 2238 braces = 1; | |
| 2239 for (t = peek(&token); 1; t = peek(t)) | |
| 2240 { | |
| 2241 switch (t->value) | |
| 2242 { | |
| 2243 case TOKsemicolon: | |
| 2244 case TOKreturn: | |
| 2245 goto Lexpression; | |
| 2246 | |
| 2247 case TOKlcurly: | |
| 2248 braces++; | |
| 2249 continue; | |
| 2250 | |
| 2251 case TOKrcurly: | |
| 2252 if (--braces == 0) | |
| 2253 break; | |
| 2254 continue; | |
| 2255 | |
| 92 | 2256 case TOKeof: |
| 2257 break; | |
| 2258 | |
| 1 | 2259 default: |
| 2260 continue; | |
| 2261 } | |
| 2262 break; | |
| 2263 } | |
| 2264 | |
| 2265 is = new StructInitializer(loc); | |
| 2266 nextToken(); | |
| 2267 comma = 0; | |
| 2268 while (1) | |
| 2269 { | |
| 2270 switch (token.value) | |
| 2271 { | |
| 2272 case TOKidentifier: | |
| 2273 if (comma == 1) | |
| 2274 error("comma expected separating field initializers"); | |
| 2275 t = peek(&token); | |
| 2276 if (t->value == TOKcolon) | |
| 2277 { | |
| 2278 id = token.ident; | |
| 2279 nextToken(); | |
| 2280 nextToken(); // skip over ':' | |
| 2281 } | |
| 2282 else | |
| 2283 { id = NULL; | |
| 2284 } | |
| 2285 value = parseInitializer(); | |
| 2286 is->addInit(id, value); | |
| 2287 comma = 1; | |
| 2288 continue; | |
| 2289 | |
| 2290 case TOKcomma: | |
| 2291 nextToken(); | |
| 2292 comma = 2; | |
| 2293 continue; | |
| 2294 | |
| 2295 case TOKrcurly: // allow trailing comma's | |
| 2296 nextToken(); | |
| 2297 break; | |
| 2298 | |
| 92 | 2299 case TOKeof: |
| 2300 error("found EOF instead of initializer"); | |
| 2301 break; | |
| 2302 | |
| 1 | 2303 default: |
| 2304 value = parseInitializer(); | |
| 2305 is->addInit(NULL, value); | |
| 2306 comma = 1; | |
| 2307 continue; | |
| 2308 //error("found '%s' instead of field initializer", token.toChars()); | |
| 2309 //break; | |
| 2310 } | |
| 2311 break; | |
| 2312 } | |
| 2313 return is; | |
| 2314 | |
| 2315 case TOKlbracket: | |
| 2316 ia = new ArrayInitializer(loc); | |
| 2317 nextToken(); | |
| 2318 comma = 0; | |
| 2319 while (1) | |
| 2320 { | |
| 2321 switch (token.value) | |
| 2322 { | |
| 2323 default: | |
| 2324 if (comma == 1) | |
| 2325 { error("comma expected separating array initializers, not %s", token.toChars()); | |
| 2326 nextToken(); | |
| 2327 break; | |
| 2328 } | |
| 2329 e = parseAssignExp(); | |
| 2330 if (!e) | |
| 2331 break; | |
| 2332 if (token.value == TOKcolon) | |
| 2333 { | |
| 2334 nextToken(); | |
| 2335 value = parseInitializer(); | |
| 2336 } | |
| 2337 else | |
| 2338 { value = new ExpInitializer(e->loc, e); | |
| 2339 e = NULL; | |
| 2340 } | |
| 2341 ia->addInit(e, value); | |
| 2342 comma = 1; | |
| 2343 continue; | |
| 2344 | |
| 2345 case TOKlcurly: | |
| 2346 case TOKlbracket: | |
| 2347 if (comma == 1) | |
| 2348 error("comma expected separating array initializers, not %s", token.toChars()); | |
| 2349 value = parseInitializer(); | |
| 2350 ia->addInit(NULL, value); | |
| 2351 comma = 1; | |
| 2352 continue; | |
| 2353 | |
| 2354 case TOKcomma: | |
| 2355 nextToken(); | |
| 2356 comma = 2; | |
| 2357 continue; | |
| 2358 | |
| 2359 case TOKrbracket: // allow trailing comma's | |
| 2360 nextToken(); | |
| 2361 break; | |
| 2362 | |
| 2363 case TOKeof: | |
| 2364 error("found '%s' instead of array initializer", token.toChars()); | |
| 2365 break; | |
| 2366 } | |
| 2367 break; | |
| 2368 } | |
| 2369 return ia; | |
| 2370 | |
| 2371 case TOKvoid: | |
| 2372 t = peek(&token); | |
| 2373 if (t->value == TOKsemicolon || t->value == TOKcomma) | |
| 2374 { | |
| 2375 nextToken(); | |
| 2376 return new VoidInitializer(loc); | |
| 2377 } | |
| 2378 goto Lexpression; | |
| 2379 | |
| 2380 default: | |
| 2381 Lexpression: | |
| 2382 e = parseAssignExp(); | |
| 2383 ie = new ExpInitializer(loc, e); | |
| 2384 return ie; | |
| 2385 } | |
| 2386 } | |
| 2387 | |
| 2388 | |
| 2389 /***************************************** | |
| 2390 * Input: | |
| 2391 * flags PSxxxx | |
| 2392 */ | |
| 2393 | |
| 2394 Statement *Parser::parseStatement(int flags) | |
| 2395 { Statement *s; | |
| 2396 Token *t; | |
| 2397 Condition *condition; | |
| 2398 Statement *ifbody; | |
| 2399 Statement *elsebody; | |
| 2400 Loc loc = this->loc; | |
| 2401 | |
| 2402 //printf("parseStatement()\n"); | |
| 2403 | |
| 2404 if (flags & PScurly && token.value != TOKlcurly) | |
| 2405 error("statement expected to be { }, not %s", token.toChars()); | |
| 2406 | |
| 2407 switch (token.value) | |
| 2408 { | |
| 2409 case TOKidentifier: | |
| 2410 // Need to look ahead to see if it is a declaration, label, or expression | |
| 2411 t = peek(&token); | |
| 2412 if (t->value == TOKcolon) | |
| 2413 { // It's a label | |
| 2414 Identifier *ident; | |
| 2415 | |
| 2416 ident = token.ident; | |
| 2417 nextToken(); | |
| 2418 nextToken(); | |
| 2419 s = parseStatement(PSsemi); | |
| 2420 s = new LabelStatement(loc, ident, s); | |
| 2421 break; | |
| 2422 } | |
| 2423 // fallthrough to TOKdot | |
| 2424 case TOKdot: | |
| 2425 case TOKtypeof: | |
| 2426 if (isDeclaration(&token, 2, TOKreserved, NULL)) | |
| 2427 goto Ldeclaration; | |
| 2428 else | |
| 2429 goto Lexp; | |
| 2430 break; | |
| 2431 | |
| 2432 case TOKassert: | |
| 2433 case TOKthis: | |
| 2434 case TOKsuper: | |
| 2435 case TOKint32v: | |
| 2436 case TOKuns32v: | |
| 2437 case TOKint64v: | |
| 2438 case TOKuns64v: | |
| 2439 case TOKfloat32v: | |
| 2440 case TOKfloat64v: | |
| 2441 case TOKfloat80v: | |
| 2442 case TOKimaginary32v: | |
| 2443 case TOKimaginary64v: | |
| 2444 case TOKimaginary80v: | |
| 2445 case TOKcharv: | |
| 2446 case TOKwcharv: | |
| 2447 case TOKdcharv: | |
| 2448 case TOKnull: | |
| 2449 case TOKtrue: | |
| 2450 case TOKfalse: | |
| 2451 case TOKstring: | |
| 2452 case TOKlparen: | |
| 2453 case TOKcast: | |
| 2454 case TOKmul: | |
| 2455 case TOKmin: | |
| 2456 case TOKadd: | |
| 2457 case TOKplusplus: | |
| 2458 case TOKminusminus: | |
| 2459 case TOKnew: | |
| 2460 case TOKdelete: | |
| 2461 case TOKdelegate: | |
| 2462 case TOKfunction: | |
| 2463 case TOKtypeid: | |
| 2464 case TOKis: | |
| 2465 case TOKlbracket: | |
| 2466 Lexp: | |
| 2467 { Expression *exp; | |
| 2468 | |
| 2469 exp = parseExpression(); | |
| 2470 check(TOKsemicolon, "statement"); | |
| 2471 s = new ExpStatement(loc, exp); | |
| 2472 break; | |
| 2473 } | |
| 2474 | |
| 2475 case TOKstatic: | |
| 2476 { // Look ahead to see if it's static assert() or static if() | |
| 2477 Token *t; | |
| 2478 | |
| 2479 t = peek(&token); | |
| 2480 if (t->value == TOKassert) | |
| 2481 { | |
| 2482 nextToken(); | |
| 2483 s = new StaticAssertStatement(parseStaticAssert()); | |
| 2484 break; | |
| 2485 } | |
| 2486 if (t->value == TOKif) | |
| 2487 { | |
| 2488 nextToken(); | |
| 2489 condition = parseStaticIfCondition(); | |
| 2490 goto Lcondition; | |
| 2491 } | |
| 2492 goto Ldeclaration; | |
| 2493 } | |
| 2494 | |
| 2495 CASE_BASIC_TYPES: | |
| 2496 case TOKtypedef: | |
| 2497 case TOKalias: | |
| 2498 case TOKconst: | |
| 2499 case TOKauto: | |
| 2500 case TOKextern: | |
| 2501 case TOKfinal: | |
| 2502 case TOKinvariant: | |
| 2503 // case TOKtypeof: | |
| 2504 Ldeclaration: | |
| 2505 { Array *a; | |
| 2506 | |
| 2507 a = parseDeclarations(); | |
| 2508 if (a->dim > 1) | |
| 2509 { | |
| 2510 Statements *as = new Statements(); | |
| 2511 as->reserve(a->dim); | |
| 2512 for (int i = 0; i < a->dim; i++) | |
| 2513 { | |
| 2514 Dsymbol *d = (Dsymbol *)a->data[i]; | |
| 2515 s = new DeclarationStatement(loc, d); | |
| 2516 as->push(s); | |
| 2517 } | |
| 2518 s = new CompoundStatement(loc, as); | |
| 2519 } | |
| 2520 else if (a->dim == 1) | |
| 2521 { | |
| 2522 Dsymbol *d = (Dsymbol *)a->data[0]; | |
| 2523 s = new DeclarationStatement(loc, d); | |
| 2524 } | |
| 2525 else | |
| 2526 assert(0); | |
| 2527 if (flags & PSscope) | |
| 2528 s = new ScopeStatement(loc, s); | |
| 2529 break; | |
| 2530 } | |
| 2531 | |
| 2532 case TOKstruct: | |
| 2533 case TOKunion: | |
| 2534 case TOKclass: | |
| 2535 case TOKinterface: | |
| 2536 { Dsymbol *d; | |
| 2537 | |
| 2538 d = parseAggregate(); | |
| 2539 s = new DeclarationStatement(loc, d); | |
| 2540 break; | |
| 2541 } | |
| 2542 | |
| 2543 case TOKenum: | |
| 2544 { Dsymbol *d; | |
| 2545 | |
| 2546 d = parseEnum(); | |
| 2547 s = new DeclarationStatement(loc, d); | |
| 2548 break; | |
| 2549 } | |
| 2550 | |
| 2551 case TOKmixin: | |
| 2552 { t = peek(&token); | |
| 2553 if (t->value == TOKlparen) | |
| 2554 { // mixin(string) | |
| 2555 nextToken(); | |
| 2556 check(TOKlparen, "mixin"); | |
| 2557 Expression *e = parseAssignExp(); | |
| 2558 check(TOKrparen); | |
| 2559 check(TOKsemicolon); | |
| 2560 s = new CompileStatement(loc, e); | |
| 2561 break; | |
| 2562 } | |
| 2563 Dsymbol *d = parseMixin(); | |
| 2564 s = new DeclarationStatement(loc, d); | |
| 2565 break; | |
| 2566 } | |
| 2567 | |
| 2568 case TOKlcurly: | |
| 2569 { Statements *statements; | |
| 2570 | |
| 2571 nextToken(); | |
| 2572 statements = new Statements(); | |
| 2573 while (token.value != TOKrcurly) | |
| 2574 { | |
| 2575 statements->push(parseStatement(PSsemi | PScurlyscope)); | |
| 2576 } | |
| 2577 endloc = this->loc; | |
| 2578 s = new CompoundStatement(loc, statements); | |
| 2579 if (flags & (PSscope | PScurlyscope)) | |
| 2580 s = new ScopeStatement(loc, s); | |
| 2581 nextToken(); | |
| 2582 break; | |
| 2583 } | |
| 2584 | |
| 2585 case TOKwhile: | |
| 2586 { Expression *condition; | |
| 2587 Statement *body; | |
| 2588 | |
| 2589 nextToken(); | |
| 2590 check(TOKlparen); | |
| 2591 condition = parseExpression(); | |
| 2592 check(TOKrparen); | |
| 2593 body = parseStatement(PSscope); | |
| 2594 s = new WhileStatement(loc, condition, body); | |
| 2595 break; | |
| 2596 } | |
| 2597 | |
| 2598 case TOKsemicolon: | |
| 2599 if (!(flags & PSsemi)) | |
| 2600 error("use '{ }' for an empty statement, not a ';'"); | |
| 2601 nextToken(); | |
| 2602 s = new ExpStatement(loc, NULL); | |
| 2603 break; | |
| 2604 | |
| 2605 case TOKdo: | |
| 2606 { Statement *body; | |
| 2607 Expression *condition; | |
| 2608 | |
| 2609 nextToken(); | |
| 2610 body = parseStatement(PSscope); | |
| 2611 check(TOKwhile); | |
| 2612 check(TOKlparen); | |
| 2613 condition = parseExpression(); | |
| 2614 check(TOKrparen); | |
| 2615 s = new DoStatement(loc, body, condition); | |
| 2616 break; | |
| 2617 } | |
| 2618 | |
| 2619 case TOKfor: | |
| 2620 { | |
| 2621 Statement *init; | |
| 2622 Expression *condition; | |
| 2623 Expression *increment; | |
| 2624 Statement *body; | |
| 2625 | |
| 2626 nextToken(); | |
| 2627 check(TOKlparen); | |
| 2628 if (token.value == TOKsemicolon) | |
| 2629 { init = NULL; | |
| 2630 nextToken(); | |
| 2631 } | |
| 2632 else | |
| 2633 { init = parseStatement(0); | |
| 2634 } | |
| 2635 if (token.value == TOKsemicolon) | |
| 2636 { | |
| 2637 condition = NULL; | |
| 2638 nextToken(); | |
| 2639 } | |
| 2640 else | |
| 2641 { | |
| 2642 condition = parseExpression(); | |
| 2643 check(TOKsemicolon, "for condition"); | |
| 2644 } | |
| 2645 if (token.value == TOKrparen) | |
| 2646 { increment = NULL; | |
| 2647 nextToken(); | |
| 2648 } | |
| 2649 else | |
| 2650 { increment = parseExpression(); | |
| 2651 check(TOKrparen); | |
| 2652 } | |
| 2653 body = parseStatement(PSscope); | |
| 2654 s = new ForStatement(loc, init, condition, increment, body); | |
| 2655 if (init) | |
| 2656 s = new ScopeStatement(loc, s); | |
| 2657 break; | |
| 2658 } | |
| 2659 | |
| 2660 case TOKforeach: | |
| 2661 case TOKforeach_reverse: | |
| 2662 { | |
| 2663 enum TOK op = token.value; | |
| 2664 Arguments *arguments; | |
| 2665 | |
| 2666 Statement *d; | |
| 2667 Statement *body; | |
| 2668 Expression *aggr; | |
| 2669 | |
| 2670 nextToken(); | |
| 2671 check(TOKlparen); | |
| 2672 | |
| 2673 arguments = new Arguments(); | |
| 2674 | |
| 2675 while (1) | |
| 2676 { | |
| 2677 Type *tb; | |
| 2678 Identifier *ai = NULL; | |
| 2679 Type *at; | |
| 2680 unsigned storageClass; | |
| 2681 Argument *a; | |
| 2682 | |
| 2683 storageClass = STCin; | |
| 2684 if (token.value == TOKinout || token.value == TOKref) | |
| 2685 { storageClass = STCref; | |
| 2686 nextToken(); | |
| 2687 } | |
| 2688 if (token.value == TOKidentifier) | |
| 2689 { | |
| 2690 Token *t = peek(&token); | |
| 2691 if (t->value == TOKcomma || t->value == TOKsemicolon) | |
| 2692 { ai = token.ident; | |
| 2693 at = NULL; // infer argument type | |
| 2694 nextToken(); | |
| 2695 goto Larg; | |
| 2696 } | |
| 2697 } | |
| 2698 tb = parseBasicType(); | |
| 2699 at = parseDeclarator(tb, &ai); | |
| 2700 if (!ai) | |
| 2701 error("no identifier for declarator %s", at->toChars()); | |
| 2702 Larg: | |
| 2703 a = new Argument(storageClass, at, ai, NULL); | |
| 2704 arguments->push(a); | |
| 2705 if (token.value == TOKcomma) | |
| 2706 { nextToken(); | |
| 2707 continue; | |
| 2708 } | |
| 2709 break; | |
| 2710 } | |
| 2711 check(TOKsemicolon); | |
| 2712 | |
| 2713 aggr = parseExpression(); | |
| 2714 check(TOKrparen); | |
| 2715 body = parseStatement(0); | |
| 2716 s = new ForeachStatement(loc, op, arguments, aggr, body); | |
| 2717 break; | |
| 2718 } | |
| 2719 | |
| 2720 case TOKif: | |
| 2721 { Argument *arg = NULL; | |
| 2722 Expression *condition; | |
| 2723 Statement *ifbody; | |
| 2724 Statement *elsebody; | |
| 2725 | |
| 2726 nextToken(); | |
| 2727 check(TOKlparen); | |
| 2728 | |
| 2729 if (token.value == TOKauto) | |
| 2730 { | |
| 2731 nextToken(); | |
| 2732 if (token.value == TOKidentifier) | |
| 2733 { | |
| 2734 Token *t = peek(&token); | |
| 2735 if (t->value == TOKassign) | |
| 2736 { | |
| 2737 arg = new Argument(STCin, NULL, token.ident, NULL); | |
| 2738 nextToken(); | |
| 2739 nextToken(); | |
| 2740 } | |
| 2741 else | |
| 2742 { error("= expected following auto identifier"); | |
| 2743 goto Lerror; | |
| 2744 } | |
| 2745 } | |
| 2746 else | |
| 2747 { error("identifier expected following auto"); | |
| 2748 goto Lerror; | |
| 2749 } | |
| 2750 } | |
| 2751 else if (isDeclaration(&token, 2, TOKassign, NULL)) | |
| 2752 { | |
| 2753 Type *tb; | |
| 2754 Type *at; | |
| 2755 Identifier *ai; | |
| 2756 | |
| 2757 tb = parseBasicType(); | |
| 2758 at = parseDeclarator(tb, &ai); | |
| 2759 check(TOKassign); | |
| 2760 arg = new Argument(STCin, at, ai, NULL); | |
| 2761 } | |
| 2762 | |
| 2763 // Check for " ident;" | |
| 2764 else if (token.value == TOKidentifier) | |
| 2765 { | |
| 2766 Token *t = peek(&token); | |
| 2767 if (t->value == TOKcomma || t->value == TOKsemicolon) | |
| 2768 { | |
| 2769 arg = new Argument(STCin, NULL, token.ident, NULL); | |
| 2770 nextToken(); | |
| 2771 nextToken(); | |
| 2772 if (1 || !global.params.useDeprecated) | |
| 2773 error("if (v; e) is deprecated, use if (auto v = e)"); | |
| 2774 } | |
| 2775 } | |
| 2776 | |
| 2777 condition = parseExpression(); | |
| 2778 check(TOKrparen); | |
| 2779 ifbody = parseStatement(PSscope); | |
| 2780 if (token.value == TOKelse) | |
| 2781 { | |
| 2782 nextToken(); | |
| 2783 elsebody = parseStatement(PSscope); | |
| 2784 } | |
| 2785 else | |
| 2786 elsebody = NULL; | |
| 2787 s = new IfStatement(loc, arg, condition, ifbody, elsebody); | |
| 2788 break; | |
| 2789 } | |
| 2790 | |
| 2791 case TOKscope: | |
| 2792 if (peek(&token)->value != TOKlparen) | |
| 2793 goto Ldeclaration; // scope used as storage class | |
| 2794 nextToken(); | |
| 2795 check(TOKlparen); | |
| 2796 if (token.value != TOKidentifier) | |
| 2797 { error("scope identifier expected"); | |
| 2798 goto Lerror; | |
| 2799 } | |
| 2800 else | |
| 2801 { TOK t = TOKon_scope_exit; | |
| 2802 Identifier *id = token.ident; | |
| 2803 | |
| 2804 if (id == Id::exit) | |
| 2805 t = TOKon_scope_exit; | |
| 2806 else if (id == Id::failure) | |
| 2807 t = TOKon_scope_failure; | |
| 2808 else if (id == Id::success) | |
| 2809 t = TOKon_scope_success; | |
| 2810 else | |
| 2811 error("valid scope identifiers are exit, failure, or success, not %s", id->toChars()); | |
| 2812 nextToken(); | |
| 2813 check(TOKrparen); | |
| 2814 Statement *st = parseStatement(PScurlyscope); | |
| 2815 s = new OnScopeStatement(loc, t, st); | |
| 2816 break; | |
| 2817 } | |
| 2818 | |
| 2819 case TOKdebug: | |
| 2820 nextToken(); | |
| 2821 condition = parseDebugCondition(); | |
| 2822 goto Lcondition; | |
| 2823 | |
| 2824 case TOKversion: | |
| 2825 nextToken(); | |
| 2826 condition = parseVersionCondition(); | |
| 2827 goto Lcondition; | |
| 2828 | |
| 2829 Lcondition: | |
| 2830 ifbody = parseStatement(0 /*PSsemi*/); | |
| 2831 elsebody = NULL; | |
| 2832 if (token.value == TOKelse) | |
| 2833 { | |
| 2834 nextToken(); | |
| 2835 elsebody = parseStatement(0 /*PSsemi*/); | |
| 2836 } | |
| 2837 s = new ConditionalStatement(loc, condition, ifbody, elsebody); | |
| 2838 break; | |
| 2839 | |
| 2840 case TOKpragma: | |
| 2841 { Identifier *ident; | |
| 2842 Expressions *args = NULL; | |
| 2843 Statement *body; | |
| 2844 | |
| 2845 nextToken(); | |
| 2846 check(TOKlparen); | |
| 2847 if (token.value != TOKidentifier) | |
| 2848 { error("pragma(identifier expected"); | |
| 2849 goto Lerror; | |
| 2850 } | |
| 2851 ident = token.ident; | |
| 2852 nextToken(); | |
| 2853 if (token.value == TOKcomma) | |
| 2854 args = parseArguments(); // pragma(identifier, args...); | |
| 2855 else | |
| 2856 check(TOKrparen); // pragma(identifier); | |
| 2857 if (token.value == TOKsemicolon) | |
| 2858 { nextToken(); | |
| 2859 body = NULL; | |
| 2860 } | |
| 2861 else | |
| 2862 body = parseStatement(PSsemi); | |
| 2863 s = new PragmaStatement(loc, ident, args, body); | |
| 2864 break; | |
| 2865 } | |
| 2866 | |
| 2867 case TOKswitch: | |
| 2868 { Expression *condition; | |
| 2869 Statement *body; | |
| 2870 | |
| 2871 nextToken(); | |
| 2872 check(TOKlparen); | |
| 2873 condition = parseExpression(); | |
| 2874 check(TOKrparen); | |
| 2875 body = parseStatement(PSscope); | |
| 2876 s = new SwitchStatement(loc, condition, body); | |
| 2877 break; | |
| 2878 } | |
| 2879 | |
| 2880 case TOKcase: | |
| 2881 { Expression *exp; | |
| 2882 Statements *statements; | |
| 2883 Array cases; // array of Expression's | |
| 2884 | |
| 2885 while (1) | |
| 2886 { | |
| 2887 nextToken(); | |
| 2888 exp = parseAssignExp(); | |
| 2889 cases.push(exp); | |
| 2890 if (token.value != TOKcomma) | |
| 2891 break; | |
| 2892 } | |
| 2893 check(TOKcolon); | |
| 2894 | |
| 2895 statements = new Statements(); | |
| 2896 while (token.value != TOKcase && | |
| 2897 token.value != TOKdefault && | |
| 2898 token.value != TOKrcurly) | |
| 2899 { | |
| 2900 statements->push(parseStatement(PSsemi | PScurlyscope)); | |
| 2901 } | |
| 2902 s = new CompoundStatement(loc, statements); | |
| 2903 s = new ScopeStatement(loc, s); | |
| 2904 | |
| 2905 // Keep cases in order by building the case statements backwards | |
| 2906 for (int i = cases.dim; i; i--) | |
| 2907 { | |
| 2908 exp = (Expression *)cases.data[i - 1]; | |
| 2909 s = new CaseStatement(loc, exp, s); | |
| 2910 } | |
| 2911 break; | |
| 2912 } | |
| 2913 | |
| 2914 case TOKdefault: | |
| 2915 { | |
| 2916 Statements *statements; | |
| 2917 | |
| 2918 nextToken(); | |
| 2919 check(TOKcolon); | |
| 2920 | |
| 2921 statements = new Statements(); | |
| 2922 while (token.value != TOKcase && | |
| 2923 token.value != TOKdefault && | |
| 2924 token.value != TOKrcurly) | |
| 2925 { | |
| 2926 statements->push(parseStatement(PSsemi | PScurlyscope)); | |
| 2927 } | |
| 2928 s = new CompoundStatement(loc, statements); | |
| 2929 s = new ScopeStatement(loc, s); | |
| 2930 s = new DefaultStatement(loc, s); | |
| 2931 break; | |
| 2932 } | |
| 2933 | |
| 2934 case TOKreturn: | |
| 2935 { Expression *exp; | |
| 2936 | |
| 2937 nextToken(); | |
| 2938 if (token.value == TOKsemicolon) | |
| 2939 exp = NULL; | |
| 2940 else | |
| 2941 exp = parseExpression(); | |
| 2942 check(TOKsemicolon, "return statement"); | |
| 2943 s = new ReturnStatement(loc, exp); | |
| 2944 break; | |
| 2945 } | |
| 2946 | |
| 2947 case TOKbreak: | |
| 2948 { Identifier *ident; | |
| 2949 | |
| 2950 nextToken(); | |
| 2951 if (token.value == TOKidentifier) | |
| 2952 { ident = token.ident; | |
| 2953 nextToken(); | |
| 2954 } | |
| 2955 else | |
| 2956 ident = NULL; | |
| 2957 check(TOKsemicolon, "break statement"); | |
| 2958 s = new BreakStatement(loc, ident); | |
| 2959 break; | |
| 2960 } | |
| 2961 | |
| 2962 case TOKcontinue: | |
| 2963 { Identifier *ident; | |
| 2964 | |
| 2965 nextToken(); | |
| 2966 if (token.value == TOKidentifier) | |
| 2967 { ident = token.ident; | |
| 2968 nextToken(); | |
| 2969 } | |
| 2970 else | |
| 2971 ident = NULL; | |
| 2972 check(TOKsemicolon, "continue statement"); | |
| 2973 s = new ContinueStatement(loc, ident); | |
| 2974 break; | |
| 2975 } | |
| 2976 | |
| 2977 case TOKgoto: | |
| 2978 { Identifier *ident; | |
| 2979 | |
| 2980 nextToken(); | |
| 2981 if (token.value == TOKdefault) | |
| 2982 { | |
| 2983 nextToken(); | |
| 2984 s = new GotoDefaultStatement(loc); | |
| 2985 } | |
| 2986 else if (token.value == TOKcase) | |
| 2987 { | |
| 2988 Expression *exp = NULL; | |
| 2989 | |
| 2990 nextToken(); | |
| 2991 if (token.value != TOKsemicolon) | |
| 2992 exp = parseExpression(); | |
| 2993 s = new GotoCaseStatement(loc, exp); | |
| 2994 } | |
| 2995 else | |
| 2996 { | |
| 2997 if (token.value != TOKidentifier) | |
| 2998 { error("Identifier expected following goto"); | |
| 2999 ident = NULL; | |
| 3000 } | |
| 3001 else | |
| 3002 { ident = token.ident; | |
| 3003 nextToken(); | |
| 3004 } | |
| 3005 s = new GotoStatement(loc, ident); | |
| 3006 } | |
| 3007 check(TOKsemicolon, "goto statement"); | |
| 3008 break; | |
| 3009 } | |
| 3010 | |
| 3011 case TOKsynchronized: | |
| 3012 { Expression *exp; | |
| 3013 Statement *body; | |
| 3014 | |
| 3015 nextToken(); | |
| 3016 if (token.value == TOKlparen) | |
| 3017 { | |
| 3018 nextToken(); | |
| 3019 exp = parseExpression(); | |
| 3020 check(TOKrparen); | |
| 3021 } | |
| 3022 else | |
| 3023 exp = NULL; | |
| 3024 body = parseStatement(PSscope); | |
| 3025 s = new SynchronizedStatement(loc, exp, body); | |
| 3026 break; | |
| 3027 } | |
| 3028 | |
| 3029 case TOKwith: | |
| 3030 { Expression *exp; | |
| 3031 Statement *body; | |
| 3032 | |
| 3033 nextToken(); | |
| 3034 check(TOKlparen); | |
| 3035 exp = parseExpression(); | |
| 3036 check(TOKrparen); | |
| 3037 body = parseStatement(PSscope); | |
| 3038 s = new WithStatement(loc, exp, body); | |
| 3039 break; | |
| 3040 } | |
| 3041 | |
| 3042 case TOKtry: | |
| 3043 { Statement *body; | |
| 3044 Array *catches = NULL; | |
| 3045 Statement *finalbody = NULL; | |
| 3046 | |
| 3047 nextToken(); | |
| 3048 body = parseStatement(PSscope); | |
| 3049 while (token.value == TOKcatch) | |
| 3050 { | |
| 3051 Statement *handler; | |
| 3052 Catch *c; | |
| 3053 Type *t; | |
| 3054 Identifier *id; | |
| 3055 Loc loc = this->loc; | |
| 3056 | |
| 3057 nextToken(); | |
| 3058 if (token.value == TOKlcurly) | |
| 3059 { | |
| 3060 t = NULL; | |
| 3061 id = NULL; | |
| 3062 } | |
| 3063 else | |
| 3064 { | |
| 3065 check(TOKlparen); | |
| 3066 t = parseBasicType(); | |
| 3067 id = NULL; | |
| 3068 t = parseDeclarator(t, &id); | |
| 3069 check(TOKrparen); | |
| 3070 } | |
| 3071 handler = parseStatement(0); | |
| 3072 c = new Catch(loc, t, id, handler); | |
| 3073 if (!catches) | |
| 3074 catches = new Array(); | |
| 3075 catches->push(c); | |
| 3076 } | |
| 3077 | |
| 3078 if (token.value == TOKfinally) | |
| 3079 { nextToken(); | |
| 3080 finalbody = parseStatement(0); | |
| 3081 } | |
| 3082 | |
| 3083 s = body; | |
| 3084 if (!catches && !finalbody) | |
| 3085 error("catch or finally expected following try"); | |
| 3086 else | |
| 3087 { if (catches) | |
| 3088 s = new TryCatchStatement(loc, body, catches); | |
| 3089 if (finalbody) | |
| 3090 s = new TryFinallyStatement(loc, s, finalbody); | |
| 3091 } | |
| 3092 break; | |
| 3093 } | |
| 3094 | |
| 3095 case TOKthrow: | |
| 3096 { Expression *exp; | |
| 3097 | |
| 3098 nextToken(); | |
| 3099 exp = parseExpression(); | |
| 3100 check(TOKsemicolon, "throw statement"); | |
| 3101 s = new ThrowStatement(loc, exp); | |
| 3102 break; | |
| 3103 } | |
| 3104 | |
| 3105 case TOKvolatile: | |
| 3106 nextToken(); | |
| 3107 s = parseStatement(PSsemi | PScurlyscope); | |
| 3108 s = new VolatileStatement(loc, s); | |
| 3109 break; | |
| 3110 | |
| 3111 case TOKasm: | |
| 3112 { Statements *statements; | |
| 3113 Identifier *label; | |
| 3114 Loc labelloc; | |
| 3115 Token *toklist; | |
| 3116 Token **ptoklist; | |
| 3117 | |
| 3118 // Parse the asm block into a sequence of AsmStatements, | |
| 3119 // each AsmStatement is one instruction. | |
| 3120 // Separate out labels. | |
| 3121 // Defer parsing of AsmStatements until semantic processing. | |
| 3122 | |
| 3123 nextToken(); | |
| 3124 check(TOKlcurly); | |
| 3125 toklist = NULL; | |
| 3126 ptoklist = &toklist; | |
| 3127 label = NULL; | |
| 3128 statements = new Statements(); | |
| 3129 while (1) | |
| 3130 { | |
| 3131 switch (token.value) | |
| 3132 { | |
| 3133 case TOKidentifier: | |
| 3134 if (!toklist) | |
| 3135 { | |
| 3136 // Look ahead to see if it is a label | |
| 3137 t = peek(&token); | |
| 3138 if (t->value == TOKcolon) | |
| 3139 { // It's a label | |
| 3140 label = token.ident; | |
| 3141 labelloc = this->loc; | |
| 3142 nextToken(); | |
| 3143 nextToken(); | |
| 3144 continue; | |
| 3145 } | |
| 3146 } | |
| 3147 goto Ldefault; | |
| 3148 | |
| 3149 case TOKrcurly: | |
| 3150 if (toklist || label) | |
| 3151 { | |
| 3152 error("asm statements must end in ';'"); | |
| 3153 } | |
| 3154 break; | |
| 3155 | |
| 3156 case TOKsemicolon: | |
| 3157 s = NULL; | |
| 3158 if (toklist || label) | |
| 3159 { // Create AsmStatement from list of tokens we've saved | |
| 3160 s = new AsmStatement(this->loc, toklist); | |
| 3161 toklist = NULL; | |
| 3162 ptoklist = &toklist; | |
| 3163 if (label) | |
| 3164 { s = new LabelStatement(labelloc, label, s); | |
| 3165 label = NULL; | |
| 3166 } | |
| 3167 statements->push(s); | |
| 3168 } | |
| 3169 nextToken(); | |
| 3170 continue; | |
| 3171 | |
| 3172 case TOKeof: | |
| 3173 /* { */ | |
| 3174 error("matching '}' expected, not end of file"); | |
| 3175 break; | |
| 3176 | |
| 3177 default: | |
| 3178 Ldefault: | |
| 3179 *ptoklist = new Token(); | |
| 3180 memcpy(*ptoklist, &token, sizeof(Token)); | |
| 3181 ptoklist = &(*ptoklist)->next; | |
| 3182 *ptoklist = NULL; | |
| 3183 | |
| 3184 nextToken(); | |
| 3185 continue; | |
| 3186 } | |
| 3187 break; | |
| 3188 } | |
|
232
092468448d25
[svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents:
159
diff
changeset
|
3189 s = new AsmBlockStatement(loc, statements); |
| 1 | 3190 nextToken(); |
| 3191 break; | |
| 3192 } | |
| 3193 | |
| 3194 default: | |
| 3195 error("found '%s' instead of statement", token.toChars()); | |
| 3196 goto Lerror; | |
| 3197 | |
| 3198 Lerror: | |
| 3199 while (token.value != TOKrcurly && | |
| 3200 token.value != TOKsemicolon && | |
| 3201 token.value != TOKeof) | |
| 3202 nextToken(); | |
| 3203 if (token.value == TOKsemicolon) | |
| 3204 nextToken(); | |
| 3205 s = NULL; | |
| 3206 break; | |
| 3207 } | |
| 3208 | |
| 3209 return s; | |
| 3210 } | |
| 3211 | |
| 3212 void Parser::check(enum TOK value) | |
| 3213 { | |
| 3214 check(loc, value); | |
| 3215 } | |
| 3216 | |
| 3217 void Parser::check(Loc loc, enum TOK value) | |
| 3218 { | |
| 3219 if (token.value != value) | |
| 3220 error(loc, "found '%s' when expecting '%s'", token.toChars(), Token::toChars(value)); | |
| 3221 nextToken(); | |
| 3222 } | |
| 3223 | |
| 3224 void Parser::check(enum TOK value, char *string) | |
| 3225 { | |
| 3226 if (token.value != value) | |
| 3227 error("found '%s' when expecting '%s' following '%s'", | |
| 3228 token.toChars(), Token::toChars(value), string); | |
| 3229 nextToken(); | |
| 3230 } | |
| 3231 | |
| 3232 /************************************ | |
| 3233 * Determine if the scanner is sitting on the start of a declaration. | |
| 3234 * Input: | |
| 3235 * needId 0 no identifier | |
| 3236 * 1 identifier optional | |
| 3237 * 2 must have identifier | |
| 3238 */ | |
| 3239 | |
| 3240 int Parser::isDeclaration(Token *t, int needId, enum TOK endtok, Token **pt) | |
| 3241 { | |
| 3242 int haveId = 0; | |
| 3243 | |
| 3244 if (!isBasicType(&t)) | |
| 3245 return FALSE; | |
| 3246 if (!isDeclarator(&t, &haveId, endtok)) | |
| 3247 return FALSE; | |
| 3248 if ( needId == 1 || | |
| 3249 (needId == 0 && !haveId) || | |
| 3250 (needId == 2 && haveId)) | |
| 3251 { if (pt) | |
| 3252 *pt = t; | |
| 3253 return TRUE; | |
| 3254 } | |
| 3255 else | |
| 3256 return FALSE; | |
| 3257 } | |
| 3258 | |
| 3259 int Parser::isBasicType(Token **pt) | |
| 3260 { | |
| 3261 // This code parallels parseBasicType() | |
| 3262 Token *t = *pt; | |
| 3263 Token *t2; | |
| 3264 int parens; | |
| 3265 | |
| 3266 switch (t->value) | |
| 3267 { | |
| 3268 CASE_BASIC_TYPES: | |
| 3269 t = peek(t); | |
| 3270 break; | |
| 3271 | |
| 3272 case TOKidentifier: | |
| 3273 t = peek(t); | |
| 3274 if (t->value == TOKnot) | |
| 3275 { | |
| 3276 goto L4; | |
| 3277 } | |
| 3278 goto L3; | |
| 3279 while (1) | |
| 3280 { | |
| 3281 L2: | |
| 3282 t = peek(t); | |
| 3283 L3: | |
| 3284 if (t->value == TOKdot) | |
| 3285 { | |
| 3286 Ldot: | |
| 3287 t = peek(t); | |
| 3288 if (t->value != TOKidentifier) | |
| 3289 goto Lfalse; | |
| 3290 t = peek(t); | |
| 3291 if (t->value != TOKnot) | |
| 3292 goto L3; | |
| 3293 L4: | |
| 3294 t = peek(t); | |
| 3295 if (t->value != TOKlparen) | |
| 3296 goto Lfalse; | |
| 3297 if (!skipParens(t, &t)) | |
| 3298 goto Lfalse; | |
| 3299 } | |
| 3300 else | |
| 3301 break; | |
| 3302 } | |
| 3303 break; | |
| 3304 | |
| 3305 case TOKdot: | |
| 3306 goto Ldot; | |
| 3307 | |
| 3308 case TOKtypeof: | |
| 3309 /* typeof(exp).identifier... | |
| 3310 */ | |
| 3311 t = peek(t); | |
| 3312 if (t->value != TOKlparen) | |
| 3313 goto Lfalse; | |
| 3314 if (!skipParens(t, &t)) | |
| 3315 goto Lfalse; | |
| 3316 goto L2; | |
| 3317 | |
| 3318 default: | |
| 3319 goto Lfalse; | |
| 3320 } | |
| 3321 *pt = t; | |
| 3322 return TRUE; | |
| 3323 | |
| 3324 Lfalse: | |
| 3325 return FALSE; | |
| 3326 } | |
| 3327 | |
| 3328 int Parser::isDeclarator(Token **pt, int *haveId, enum TOK endtok) | |
| 3329 { // This code parallels parseDeclarator() | |
| 3330 Token *t = *pt; | |
| 3331 int parens; | |
| 3332 | |
| 3333 //printf("Parser::isDeclarator()\n"); | |
| 3334 //t->print(); | |
| 3335 if (t->value == TOKassign) | |
| 3336 return FALSE; | |
| 3337 | |
| 3338 while (1) | |
| 3339 { | |
| 3340 parens = FALSE; | |
| 3341 switch (t->value) | |
| 3342 { | |
| 3343 case TOKmul: | |
| 3344 case TOKand: | |
| 3345 t = peek(t); | |
| 3346 continue; | |
| 3347 | |
| 3348 case TOKlbracket: | |
| 3349 t = peek(t); | |
| 3350 if (t->value == TOKrbracket) | |
| 3351 { | |
| 3352 t = peek(t); | |
| 3353 } | |
| 3354 else if (isDeclaration(t, 0, TOKrbracket, &t)) | |
| 3355 { // It's an associative array declaration | |
| 3356 t = peek(t); | |
| 3357 } | |
| 3358 else | |
| 3359 { | |
| 3360 // [ expression ] | |
| 3361 // [ expression .. expression ] | |
| 3362 if (!isExpression(&t)) | |
| 3363 return FALSE; | |
| 3364 if (t->value == TOKslice) | |
| 3365 { t = peek(t); | |
| 3366 if (!isExpression(&t)) | |
| 3367 return FALSE; | |
| 3368 } | |
| 3369 if (t->value != TOKrbracket) | |
| 3370 return FALSE; | |
| 3371 t = peek(t); | |
| 3372 } | |
| 3373 continue; | |
| 3374 | |
| 3375 case TOKidentifier: | |
| 3376 if (*haveId) | |
| 3377 return FALSE; | |
| 3378 *haveId = TRUE; | |
| 3379 t = peek(t); | |
| 3380 break; | |
| 3381 | |
| 3382 case TOKlparen: | |
| 3383 t = peek(t); | |
| 3384 | |
| 3385 if (t->value == TOKrparen) | |
| 3386 return FALSE; // () is not a declarator | |
| 3387 | |
| 3388 /* Regard ( identifier ) as not a declarator | |
| 3389 * BUG: what about ( *identifier ) in | |
| 3390 * f(*p)(x); | |
| 3391 * where f is a class instance with overloaded () ? | |
| 3392 * Should we just disallow C-style function pointer declarations? | |
| 3393 */ | |
| 3394 if (t->value == TOKidentifier) | |
| 3395 { Token *t2 = peek(t); | |
| 3396 if (t2->value == TOKrparen) | |
| 3397 return FALSE; | |
| 3398 } | |
| 3399 | |
| 3400 | |
| 3401 if (!isDeclarator(&t, haveId, TOKrparen)) | |
| 3402 return FALSE; | |
| 3403 t = peek(t); | |
| 3404 parens = TRUE; | |
| 3405 break; | |
| 3406 | |
| 3407 case TOKdelegate: | |
| 3408 case TOKfunction: | |
| 3409 t = peek(t); | |
| 3410 if (!isParameters(&t)) | |
| 3411 return FALSE; | |
| 3412 continue; | |
| 3413 } | |
| 3414 break; | |
| 3415 } | |
| 3416 | |
| 3417 while (1) | |
| 3418 { | |
| 3419 switch (t->value) | |
| 3420 { | |
| 3421 #if CARRAYDECL | |
| 3422 case TOKlbracket: | |
| 3423 parens = FALSE; | |
| 3424 t = peek(t); | |
| 3425 if (t->value == TOKrbracket) | |
| 3426 { | |
| 3427 t = peek(t); | |
| 3428 } | |
| 3429 else if (isDeclaration(t, 0, TOKrbracket, &t)) | |
| 3430 { // It's an associative array declaration | |
| 3431 t = peek(t); | |
| 3432 } | |
| 3433 else | |
| 3434 { | |
| 3435 // [ expression ] | |
| 3436 if (!isExpression(&t)) | |
| 3437 return FALSE; | |
| 3438 if (t->value != TOKrbracket) | |
| 3439 return FALSE; | |
| 3440 t = peek(t); | |
| 3441 } | |
| 3442 continue; | |
| 3443 #endif | |
| 3444 | |
| 3445 case TOKlparen: | |
| 3446 parens = FALSE; | |
| 3447 if (!isParameters(&t)) | |
| 3448 return FALSE; | |
| 3449 continue; | |
| 3450 | |
| 3451 // Valid tokens that follow a declaration | |
| 3452 case TOKrparen: | |
| 3453 case TOKrbracket: | |
| 3454 case TOKassign: | |
| 3455 case TOKcomma: | |
| 3456 case TOKsemicolon: | |
| 3457 case TOKlcurly: | |
| 3458 case TOKin: | |
| 3459 // The !parens is to disallow unnecessary parentheses | |
| 3460 if (!parens && (endtok == TOKreserved || endtok == t->value)) | |
| 3461 { *pt = t; | |
| 3462 return TRUE; | |
| 3463 } | |
| 3464 return FALSE; | |
| 3465 | |
| 3466 default: | |
| 3467 return FALSE; | |
| 3468 } | |
| 3469 } | |
| 3470 } | |
| 3471 | |
| 3472 | |
| 3473 int Parser::isParameters(Token **pt) | |
| 3474 { // This code parallels parseParameters() | |
| 3475 Token *t = *pt; | |
| 3476 int tmp; | |
| 3477 | |
| 3478 //printf("isParameters()\n"); | |
| 3479 if (t->value != TOKlparen) | |
| 3480 return FALSE; | |
| 3481 | |
| 3482 t = peek(t); | |
| 3483 while (1) | |
| 3484 { | |
| 3485 switch (t->value) | |
| 3486 { | |
| 3487 case TOKrparen: | |
| 3488 break; | |
| 3489 | |
| 3490 case TOKdotdotdot: | |
| 3491 t = peek(t); | |
| 3492 break; | |
| 3493 | |
| 3494 case TOKin: | |
| 3495 case TOKout: | |
| 3496 case TOKinout: | |
| 3497 case TOKref: | |
| 3498 case TOKlazy: | |
| 3499 t = peek(t); | |
| 3500 default: | |
| 3501 if (!isBasicType(&t)) | |
| 3502 return FALSE; | |
| 3503 tmp = FALSE; | |
| 3504 if (t->value != TOKdotdotdot && | |
| 3505 !isDeclarator(&t, &tmp, TOKreserved)) | |
| 3506 return FALSE; | |
| 3507 if (t->value == TOKassign) | |
| 3508 { t = peek(t); | |
| 3509 if (!isExpression(&t)) | |
| 3510 return FALSE; | |
| 3511 } | |
| 3512 if (t->value == TOKdotdotdot) | |
| 3513 { | |
| 3514 t = peek(t); | |
| 3515 break; | |
| 3516 } | |
| 3517 if (t->value == TOKcomma) | |
| 3518 { t = peek(t); | |
| 3519 continue; | |
| 3520 } | |
| 3521 break; | |
| 3522 } | |
| 3523 break; | |
| 3524 } | |
| 3525 if (t->value != TOKrparen) | |
| 3526 return FALSE; | |
| 3527 t = peek(t); | |
| 3528 *pt = t; | |
| 3529 return TRUE; | |
| 3530 } | |
| 3531 | |
| 3532 int Parser::isExpression(Token **pt) | |
| 3533 { | |
| 3534 // This is supposed to determine if something is an expression. | |
| 3535 // What it actually does is scan until a closing right bracket | |
| 3536 // is found. | |
| 3537 | |
| 3538 Token *t = *pt; | |
| 3539 int brnest = 0; | |
| 3540 int panest = 0; | |
| 3541 | |
| 3542 for (;; t = peek(t)) | |
| 3543 { | |
| 3544 switch (t->value) | |
| 3545 { | |
| 3546 case TOKlbracket: | |
| 3547 brnest++; | |
| 3548 continue; | |
| 3549 | |
| 3550 case TOKrbracket: | |
| 3551 if (--brnest >= 0) | |
| 3552 continue; | |
| 3553 break; | |
| 3554 | |
| 3555 case TOKlparen: | |
| 3556 panest++; | |
| 3557 continue; | |
| 3558 | |
| 3559 case TOKcomma: | |
| 3560 if (brnest || panest) | |
| 3561 continue; | |
| 3562 break; | |
| 3563 | |
| 3564 case TOKrparen: | |
| 3565 if (--panest >= 0) | |
| 3566 continue; | |
| 3567 break; | |
| 3568 | |
| 3569 case TOKslice: | |
| 3570 if (brnest) | |
| 3571 continue; | |
| 3572 break; | |
| 3573 | |
| 3574 case TOKeof: | |
| 3575 return FALSE; | |
| 3576 | |
| 3577 default: | |
| 3578 continue; | |
| 3579 } | |
| 3580 break; | |
| 3581 } | |
| 3582 | |
| 3583 *pt = t; | |
| 3584 return TRUE; | |
| 3585 } | |
| 3586 | |
| 3587 /********************************************** | |
| 3588 * Skip over | |
| 3589 * instance foo.bar(parameters...) | |
| 3590 * Output: | |
| 3591 * if (pt), *pt is set to the token following the closing ) | |
| 3592 * Returns: | |
| 3593 * 1 it's valid instance syntax | |
| 3594 * 0 invalid instance syntax | |
| 3595 */ | |
| 3596 | |
| 3597 int Parser::isTemplateInstance(Token *t, Token **pt) | |
| 3598 { | |
| 3599 t = peek(t); | |
| 3600 if (t->value != TOKdot) | |
| 3601 { | |
| 3602 if (t->value != TOKidentifier) | |
| 3603 goto Lfalse; | |
| 3604 t = peek(t); | |
| 3605 } | |
| 3606 while (t->value == TOKdot) | |
| 3607 { | |
| 3608 t = peek(t); | |
| 3609 if (t->value != TOKidentifier) | |
| 3610 goto Lfalse; | |
| 3611 t = peek(t); | |
| 3612 } | |
| 3613 if (t->value != TOKlparen) | |
| 3614 goto Lfalse; | |
| 3615 | |
| 3616 // Skip over the template arguments | |
| 3617 while (1) | |
| 3618 { | |
| 3619 while (1) | |
| 3620 { | |
| 3621 t = peek(t); | |
| 3622 switch (t->value) | |
| 3623 { | |
| 3624 case TOKlparen: | |
| 3625 if (!skipParens(t, &t)) | |
| 3626 goto Lfalse; | |
| 3627 continue; | |
| 3628 case TOKrparen: | |
| 3629 break; | |
| 3630 case TOKcomma: | |
| 3631 break; | |
| 3632 case TOKeof: | |
| 3633 case TOKsemicolon: | |
| 3634 goto Lfalse; | |
| 3635 default: | |
| 3636 continue; | |
| 3637 } | |
| 3638 break; | |
| 3639 } | |
| 3640 | |
| 3641 if (t->value != TOKcomma) | |
| 3642 break; | |
| 3643 } | |
| 3644 if (t->value != TOKrparen) | |
| 3645 goto Lfalse; | |
| 3646 t = peek(t); | |
| 3647 if (pt) | |
| 3648 *pt = t; | |
| 3649 return 1; | |
| 3650 | |
| 3651 Lfalse: | |
| 3652 return 0; | |
| 3653 } | |
| 3654 | |
| 3655 /******************************************* | |
| 3656 * Skip parens, brackets. | |
| 3657 * Input: | |
| 3658 * t is on opening ( | |
| 3659 * Output: | |
| 3660 * *pt is set to closing token, which is ')' on success | |
| 3661 * Returns: | |
| 3662 * !=0 successful | |
| 3663 * 0 some parsing error | |
| 3664 */ | |
| 3665 | |
| 3666 int Parser::skipParens(Token *t, Token **pt) | |
| 3667 { | |
| 3668 int parens = 0; | |
| 3669 | |
| 3670 while (1) | |
| 3671 { | |
| 3672 switch (t->value) | |
| 3673 { | |
| 3674 case TOKlparen: | |
| 3675 parens++; | |
| 3676 break; | |
| 3677 | |
| 3678 case TOKrparen: | |
| 3679 parens--; | |
| 3680 if (parens < 0) | |
| 3681 goto Lfalse; | |
| 3682 if (parens == 0) | |
| 3683 goto Ldone; | |
| 3684 break; | |
| 3685 | |
| 3686 case TOKeof: | |
| 3687 case TOKsemicolon: | |
| 3688 goto Lfalse; | |
| 3689 | |
| 3690 default: | |
| 3691 break; | |
| 3692 } | |
| 3693 t = peek(t); | |
| 3694 } | |
| 3695 | |
| 3696 Ldone: | |
| 3697 if (*pt) | |
| 3698 *pt = t; | |
| 3699 return 1; | |
| 3700 | |
| 3701 Lfalse: | |
| 3702 return 0; | |
| 3703 } | |
| 3704 | |
| 3705 /********************************* Expression Parser ***************************/ | |
| 3706 | |
| 3707 Expression *Parser::parsePrimaryExp() | |
| 3708 { Expression *e; | |
| 3709 Type *t; | |
| 3710 Identifier *id; | |
| 3711 enum TOK save; | |
| 3712 Loc loc = this->loc; | |
| 3713 | |
| 3714 switch (token.value) | |
| 3715 { | |
| 3716 case TOKidentifier: | |
| 3717 id = token.ident; | |
| 3718 nextToken(); | |
| 3719 if (token.value == TOKnot && peek(&token)->value == TOKlparen) | |
| 3720 { // identifier!(template-argument-list) | |
| 3721 TemplateInstance *tempinst; | |
| 3722 | |
| 3723 tempinst = new TemplateInstance(loc, id); | |
| 3724 nextToken(); | |
| 3725 tempinst->tiargs = parseTemplateArgumentList(); | |
| 3726 e = new ScopeExp(loc, tempinst); | |
| 3727 } | |
| 3728 else | |
| 3729 e = new IdentifierExp(loc, id); | |
| 3730 break; | |
| 3731 | |
| 3732 case TOKdollar: | |
| 3733 if (!inBrackets) | |
| 3734 error("'$' is valid only inside [] of index or slice"); | |
| 3735 e = new DollarExp(loc); | |
| 3736 nextToken(); | |
| 3737 break; | |
| 3738 | |
| 3739 case TOKdot: | |
| 3740 // Signal global scope '.' operator with "" identifier | |
| 3741 e = new IdentifierExp(loc, Id::empty); | |
| 3742 break; | |
| 3743 | |
| 3744 case TOKthis: | |
| 3745 e = new ThisExp(loc); | |
| 3746 nextToken(); | |
| 3747 break; | |
| 3748 | |
| 3749 case TOKsuper: | |
| 3750 e = new SuperExp(loc); | |
| 3751 nextToken(); | |
| 3752 break; | |
| 3753 | |
| 3754 case TOKint32v: | |
| 3755 e = new IntegerExp(loc, token.int32value, Type::tint32); | |
| 3756 nextToken(); | |
| 3757 break; | |
| 3758 | |
| 3759 case TOKuns32v: | |
| 3760 e = new IntegerExp(loc, token.uns32value, Type::tuns32); | |
| 3761 nextToken(); | |
| 3762 break; | |
| 3763 | |
| 3764 case TOKint64v: | |
| 3765 e = new IntegerExp(loc, token.int64value, Type::tint64); | |
| 3766 nextToken(); | |
| 3767 break; | |
| 3768 | |
| 3769 case TOKuns64v: | |
| 3770 e = new IntegerExp(loc, token.uns64value, Type::tuns64); | |
| 3771 nextToken(); | |
| 3772 break; | |
| 3773 | |
| 3774 case TOKfloat32v: | |
| 3775 e = new RealExp(loc, token.float80value, Type::tfloat32); | |
| 3776 nextToken(); | |
| 3777 break; | |
| 3778 | |
| 3779 case TOKfloat64v: | |
| 3780 e = new RealExp(loc, token.float80value, Type::tfloat64); | |
| 3781 nextToken(); | |
| 3782 break; | |
| 3783 | |
| 3784 case TOKfloat80v: | |
| 3785 e = new RealExp(loc, token.float80value, Type::tfloat80); | |
| 3786 nextToken(); | |
| 3787 break; | |
| 3788 | |
| 3789 case TOKimaginary32v: | |
| 3790 e = new RealExp(loc, token.float80value, Type::timaginary32); | |
| 3791 nextToken(); | |
| 3792 break; | |
| 3793 | |
| 3794 case TOKimaginary64v: | |
| 3795 e = new RealExp(loc, token.float80value, Type::timaginary64); | |
| 3796 nextToken(); | |
| 3797 break; | |
| 3798 | |
| 3799 case TOKimaginary80v: | |
| 3800 e = new RealExp(loc, token.float80value, Type::timaginary80); | |
| 3801 nextToken(); | |
| 3802 break; | |
| 3803 | |
| 3804 case TOKnull: | |
| 3805 e = new NullExp(loc); | |
| 3806 nextToken(); | |
| 3807 break; | |
| 3808 | |
| 3809 case TOKtrue: | |
| 3810 e = new IntegerExp(loc, 1, Type::tbool); | |
| 3811 nextToken(); | |
| 3812 break; | |
| 3813 | |
| 3814 case TOKfalse: | |
| 3815 e = new IntegerExp(loc, 0, Type::tbool); | |
| 3816 nextToken(); | |
| 3817 break; | |
| 3818 | |
| 3819 case TOKcharv: | |
| 3820 e = new IntegerExp(loc, token.uns32value, Type::tchar); | |
| 3821 nextToken(); | |
| 3822 break; | |
| 3823 | |
| 3824 case TOKwcharv: | |
| 3825 e = new IntegerExp(loc, token.uns32value, Type::twchar); | |
| 3826 nextToken(); | |
| 3827 break; | |
| 3828 | |
| 3829 case TOKdcharv: | |
| 3830 e = new IntegerExp(loc, token.uns32value, Type::tdchar); | |
| 3831 nextToken(); | |
| 3832 break; | |
| 3833 | |
| 3834 case TOKstring: | |
| 3835 { unsigned char *s; | |
| 3836 unsigned len; | |
| 3837 unsigned char postfix; | |
| 3838 | |
| 3839 // cat adjacent strings | |
| 3840 s = token.ustring; | |
| 3841 len = token.len; | |
| 3842 postfix = token.postfix; | |
| 3843 while (1) | |
| 3844 { | |
| 3845 nextToken(); | |
| 3846 if (token.value == TOKstring) | |
| 3847 { unsigned len1; | |
| 3848 unsigned len2; | |
| 3849 unsigned char *s2; | |
| 3850 | |
| 3851 if (token.postfix) | |
| 3852 { if (token.postfix != postfix) | |
| 3853 error("mismatched string literal postfixes '%c' and '%c'", postfix, token.postfix); | |
| 3854 postfix = token.postfix; | |
| 3855 } | |
| 3856 | |
| 3857 len1 = len; | |
| 3858 len2 = token.len; | |
| 3859 len = len1 + len2; | |
| 3860 s2 = (unsigned char *)mem.malloc((len + 1) * sizeof(unsigned char)); | |
| 3861 memcpy(s2, s, len1 * sizeof(unsigned char)); | |
| 3862 memcpy(s2 + len1, token.ustring, (len2 + 1) * sizeof(unsigned char)); | |
| 3863 s = s2; | |
| 3864 } | |
| 3865 else | |
| 3866 break; | |
| 3867 } | |
| 3868 e = new StringExp(loc, s, len, postfix); | |
| 3869 break; | |
| 3870 } | |
| 3871 | |
| 3872 CASE_BASIC_TYPES_X(t): | |
| 3873 nextToken(); | |
| 3874 L1: | |
| 3875 check(TOKdot, t->toChars()); | |
| 3876 if (token.value != TOKidentifier) | |
| 3877 { error("found '%s' when expecting identifier following '%s.'", token.toChars(), t->toChars()); | |
| 3878 goto Lerr; | |
| 3879 } | |
| 3880 e = new TypeDotIdExp(loc, t, token.ident); | |
| 3881 nextToken(); | |
| 3882 break; | |
| 3883 | |
| 3884 case TOKtypeof: | |
| 3885 { Expression *exp; | |
| 3886 | |
| 3887 nextToken(); | |
| 3888 check(TOKlparen); | |
| 3889 exp = parseExpression(); | |
| 3890 check(TOKrparen); | |
| 3891 t = new TypeTypeof(loc, exp); | |
| 3892 if (token.value == TOKdot) | |
| 3893 goto L1; | |
| 3894 e = new TypeExp(loc, t); | |
| 3895 break; | |
| 3896 } | |
| 3897 | |
| 3898 case TOKtypeid: | |
| 3899 { Type *t; | |
| 3900 | |
| 3901 nextToken(); | |
| 3902 check(TOKlparen, "typeid"); | |
| 3903 t = parseBasicType(); | |
| 3904 t = parseDeclarator(t,NULL); // ( type ) | |
| 3905 check(TOKrparen); | |
| 3906 e = new TypeidExp(loc, t); | |
| 3907 break; | |
| 3908 } | |
| 3909 | |
| 3910 case TOKis: | |
| 3911 { Type *targ; | |
| 3912 Identifier *ident = NULL; | |
| 3913 Type *tspec = NULL; | |
| 3914 enum TOK tok = TOKreserved; | |
| 3915 enum TOK tok2 = TOKreserved; | |
| 3916 Loc loc = this->loc; | |
| 3917 | |
| 3918 nextToken(); | |
| 3919 if (token.value == TOKlparen) | |
| 3920 { | |
| 3921 nextToken(); | |
| 3922 targ = parseBasicType(); | |
| 3923 targ = parseDeclarator(targ, &ident); | |
| 3924 if (token.value == TOKcolon || token.value == TOKequal) | |
| 3925 { | |
| 3926 tok = token.value; | |
| 3927 nextToken(); | |
| 3928 if (tok == TOKequal && | |
| 3929 (token.value == TOKtypedef || | |
| 3930 token.value == TOKstruct || | |
| 3931 token.value == TOKunion || | |
| 3932 token.value == TOKclass || | |
| 3933 token.value == TOKsuper || | |
| 3934 token.value == TOKenum || | |
| 3935 token.value == TOKinterface || | |
| 3936 token.value == TOKfunction || | |
| 3937 token.value == TOKdelegate || | |
| 3938 token.value == TOKreturn)) | |
| 3939 { | |
| 3940 tok2 = token.value; | |
| 3941 nextToken(); | |
| 3942 } | |
| 3943 else | |
| 3944 { | |
| 3945 tspec = parseBasicType(); | |
| 3946 tspec = parseDeclarator(tspec, NULL); | |
| 3947 } | |
| 3948 } | |
| 3949 check(TOKrparen); | |
| 3950 } | |
| 3951 else | |
| 3952 { error("(type identifier : specialization) expected following is"); | |
| 3953 goto Lerr; | |
| 3954 } | |
| 19 | 3955 e = new IsExp(loc, targ, ident, tok, tspec, tok2); |
| 1 | 3956 break; |
| 3957 } | |
| 3958 | |
| 3959 case TOKassert: | |
| 3960 { Expression *msg = NULL; | |
| 3961 | |
| 3962 nextToken(); | |
| 3963 check(TOKlparen, "assert"); | |
| 3964 e = parseAssignExp(); | |
| 3965 if (token.value == TOKcomma) | |
| 3966 { nextToken(); | |
| 3967 msg = parseAssignExp(); | |
| 3968 } | |
| 3969 check(TOKrparen); | |
| 3970 e = new AssertExp(loc, e, msg); | |
| 3971 break; | |
| 3972 } | |
| 3973 | |
| 3974 case TOKmixin: | |
| 3975 { | |
| 3976 nextToken(); | |
| 3977 check(TOKlparen, "mixin"); | |
| 3978 e = parseAssignExp(); | |
| 3979 check(TOKrparen); | |
| 3980 e = new CompileExp(loc, e); | |
| 3981 break; | |
| 3982 } | |
| 3983 | |
| 3984 case TOKimport: | |
| 3985 { | |
| 3986 nextToken(); | |
| 3987 check(TOKlparen, "import"); | |
| 3988 e = parseAssignExp(); | |
| 3989 check(TOKrparen); | |
| 3990 e = new FileExp(loc, e); | |
| 3991 break; | |
| 3992 } | |
| 3993 | |
| 3994 case TOKlparen: | |
| 3995 if (peekPastParen(&token)->value == TOKlcurly) | |
| 3996 { // (arguments) { statements... } | |
| 3997 save = TOKdelegate; | |
| 3998 goto case_delegate; | |
| 3999 } | |
| 4000 // ( expression ) | |
| 4001 nextToken(); | |
| 4002 e = parseExpression(); | |
| 4003 check(loc, TOKrparen); | |
| 4004 break; | |
| 4005 | |
| 4006 case TOKlbracket: | |
| 4007 { /* Parse array literals and associative array literals: | |
| 4008 * [ value, value, value ... ] | |
| 4009 * [ key:value, key:value, key:value ... ] | |
| 4010 */ | |
| 4011 Expressions *values = new Expressions(); | |
| 4012 Expressions *keys = NULL; | |
| 4013 | |
| 4014 nextToken(); | |
| 4015 if (token.value != TOKrbracket) | |
| 4016 { | |
| 4017 while (1) | |
| 4018 { | |
| 4019 Expression *e = parseAssignExp(); | |
| 4020 if (token.value == TOKcolon && (keys || values->dim == 0)) | |
| 4021 { nextToken(); | |
| 4022 if (!keys) | |
| 4023 keys = new Expressions(); | |
| 4024 keys->push(e); | |
| 4025 e = parseAssignExp(); | |
| 4026 } | |
| 4027 else if (keys) | |
| 4028 { error("'key:value' expected for associative array literal"); | |
| 4029 delete keys; | |
| 4030 keys = NULL; | |
| 4031 } | |
| 4032 values->push(e); | |
| 4033 if (token.value == TOKrbracket) | |
| 4034 break; | |
| 4035 check(TOKcomma); | |
| 4036 } | |
| 4037 } | |
| 4038 check(TOKrbracket); | |
| 4039 | |
| 4040 if (keys) | |
| 4041 e = new AssocArrayLiteralExp(loc, keys, values); | |
| 4042 else | |
| 4043 e = new ArrayLiteralExp(loc, values); | |
| 4044 break; | |
| 4045 } | |
| 4046 | |
| 4047 case TOKlcurly: | |
| 4048 // { statements... } | |
| 4049 save = TOKdelegate; | |
| 4050 goto case_delegate; | |
| 4051 | |
| 4052 case TOKfunction: | |
| 4053 case TOKdelegate: | |
| 4054 save = token.value; | |
| 4055 nextToken(); | |
| 4056 case_delegate: | |
| 4057 { | |
| 4058 /* function type(parameters) { body } | |
| 4059 * delegate type(parameters) { body } | |
| 4060 */ | |
| 4061 Arguments *arguments; | |
| 4062 int varargs; | |
| 4063 FuncLiteralDeclaration *fd; | |
| 4064 Type *t; | |
| 4065 | |
| 4066 if (token.value == TOKlcurly) | |
| 4067 { | |
| 4068 t = NULL; | |
| 4069 varargs = 0; | |
| 4070 arguments = new Arguments(); | |
| 4071 } | |
| 4072 else | |
| 4073 { | |
| 4074 if (token.value == TOKlparen) | |
| 4075 t = NULL; | |
| 4076 else | |
| 4077 { | |
| 4078 t = parseBasicType(); | |
| 4079 t = parseBasicType2(t); // function return type | |
| 4080 } | |
| 4081 arguments = parseParameters(&varargs); | |
| 4082 } | |
| 4083 t = new TypeFunction(arguments, t, varargs, linkage); | |
| 4084 fd = new FuncLiteralDeclaration(loc, 0, t, save, NULL); | |
| 4085 parseContracts(fd); | |
| 4086 e = new FuncExp(loc, fd); | |
| 4087 break; | |
| 4088 } | |
| 4089 | |
| 4090 default: | |
| 4091 error("expression expected, not '%s'", token.toChars()); | |
| 4092 Lerr: | |
| 4093 // Anything for e, as long as it's not NULL | |
| 4094 e = new IntegerExp(loc, 0, Type::tint32); | |
| 4095 nextToken(); | |
| 4096 break; | |
| 4097 } | |
| 4098 return parsePostExp(e); | |
| 4099 } | |
| 4100 | |
| 4101 Expression *Parser::parsePostExp(Expression *e) | |
| 4102 { | |
| 4103 Loc loc; | |
| 4104 | |
| 4105 while (1) | |
| 4106 { | |
| 4107 loc = this->loc; | |
| 4108 switch (token.value) | |
| 4109 { | |
| 4110 case TOKdot: | |
| 4111 nextToken(); | |
| 4112 if (token.value == TOKidentifier) | |
| 4113 { Identifier *id = token.ident; | |
| 4114 | |
| 4115 nextToken(); | |
| 4116 if (token.value == TOKnot && peek(&token)->value == TOKlparen) | |
| 4117 { // identifier!(template-argument-list) | |
| 4118 TemplateInstance *tempinst; | |
| 4119 | |
| 4120 tempinst = new TemplateInstance(loc, id); | |
| 4121 nextToken(); | |
| 4122 tempinst->tiargs = parseTemplateArgumentList(); | |
| 4123 e = new DotTemplateInstanceExp(loc, e, tempinst); | |
| 4124 } | |
| 4125 else | |
| 4126 e = new DotIdExp(loc, e, id); | |
| 4127 continue; | |
| 4128 } | |
| 4129 else if (token.value == TOKnew) | |
| 4130 { | |
| 4131 e = parseNewExp(e); | |
| 4132 continue; | |
| 4133 } | |
| 4134 else | |
| 4135 error("identifier expected following '.', not '%s'", token.toChars()); | |
| 4136 break; | |
| 4137 | |
| 4138 case TOKplusplus: | |
| 4139 e = new PostExp(TOKplusplus, loc, e); | |
| 4140 break; | |
| 4141 | |
| 4142 case TOKminusminus: | |
| 4143 e = new PostExp(TOKminusminus, loc, e); | |
| 4144 break; | |
| 4145 | |
| 4146 case TOKlparen: | |
| 4147 e = new CallExp(loc, e, parseArguments()); | |
| 4148 continue; | |
| 4149 | |
| 4150 case TOKlbracket: | |
| 4151 { // array dereferences: | |
| 4152 // array[index] | |
| 4153 // array[] | |
| 4154 // array[lwr .. upr] | |
| 4155 Expression *index; | |
| 4156 Expression *upr; | |
| 4157 | |
| 4158 inBrackets++; | |
| 4159 nextToken(); | |
| 4160 if (token.value == TOKrbracket) | |
| 4161 { // array[] | |
| 4162 e = new SliceExp(loc, e, NULL, NULL); | |
| 4163 nextToken(); | |
| 4164 } | |
| 4165 else | |
| 4166 { | |
| 4167 index = parseAssignExp(); | |
| 4168 if (token.value == TOKslice) | |
| 4169 { // array[lwr .. upr] | |
| 4170 nextToken(); | |
| 4171 upr = parseAssignExp(); | |
| 4172 e = new SliceExp(loc, e, index, upr); | |
| 4173 } | |
| 4174 else | |
| 4175 { // array[index, i2, i3, i4, ...] | |
| 4176 Expressions *arguments = new Expressions(); | |
| 4177 arguments->push(index); | |
| 4178 if (token.value == TOKcomma) | |
| 4179 { | |
| 4180 nextToken(); | |
| 4181 while (1) | |
| 4182 { Expression *arg; | |
| 4183 | |
| 4184 arg = parseAssignExp(); | |
| 4185 arguments->push(arg); | |
| 4186 if (token.value == TOKrbracket) | |
| 4187 break; | |
| 4188 check(TOKcomma); | |
| 4189 } | |
| 4190 } | |
| 4191 e = new ArrayExp(loc, e, arguments); | |
| 4192 } | |
| 4193 check(TOKrbracket); | |
| 4194 inBrackets--; | |
| 4195 } | |
| 4196 continue; | |
| 4197 } | |
| 4198 | |
| 4199 default: | |
| 4200 return e; | |
| 4201 } | |
| 4202 nextToken(); | |
| 4203 } | |
| 4204 } | |
| 4205 | |
| 4206 Expression *Parser::parseUnaryExp() | |
| 4207 { Expression *e; | |
| 4208 Loc loc = this->loc; | |
| 4209 | |
| 4210 switch (token.value) | |
| 4211 { | |
| 4212 case TOKand: | |
| 4213 nextToken(); | |
| 4214 e = parseUnaryExp(); | |
| 4215 e = new AddrExp(loc, e); | |
| 4216 break; | |
| 4217 | |
| 4218 case TOKplusplus: | |
| 4219 nextToken(); | |
| 4220 e = parseUnaryExp(); | |
| 4221 e = new AddAssignExp(loc, e, new IntegerExp(loc, 1, Type::tint32)); | |
| 4222 break; | |
| 4223 | |
| 4224 case TOKminusminus: | |
| 4225 nextToken(); | |
| 4226 e = parseUnaryExp(); | |
| 4227 e = new MinAssignExp(loc, e, new IntegerExp(loc, 1, Type::tint32)); | |
| 4228 break; | |
| 4229 | |
| 4230 case TOKmul: | |
| 4231 nextToken(); | |
| 4232 e = parseUnaryExp(); | |
| 4233 e = new PtrExp(loc, e); | |
| 4234 break; | |
| 4235 | |
| 4236 case TOKmin: | |
| 4237 nextToken(); | |
| 4238 e = parseUnaryExp(); | |
| 4239 e = new NegExp(loc, e); | |
| 4240 break; | |
| 4241 | |
| 4242 case TOKadd: | |
| 4243 nextToken(); | |
| 4244 e = parseUnaryExp(); | |
| 4245 e = new UAddExp(loc, e); | |
| 4246 break; | |
| 4247 | |
| 4248 case TOKnot: | |
| 4249 nextToken(); | |
| 4250 e = parseUnaryExp(); | |
| 4251 e = new NotExp(loc, e); | |
| 4252 break; | |
| 4253 | |
| 4254 case TOKtilde: | |
| 4255 nextToken(); | |
| 4256 e = parseUnaryExp(); | |
| 4257 e = new ComExp(loc, e); | |
| 4258 break; | |
| 4259 | |
| 4260 case TOKdelete: | |
| 4261 nextToken(); | |
| 4262 e = parseUnaryExp(); | |
| 4263 e = new DeleteExp(loc, e); | |
| 4264 break; | |
| 4265 | |
| 4266 case TOKnew: | |
| 4267 e = parseNewExp(NULL); | |
| 4268 break; | |
| 4269 | |
| 4270 case TOKcast: // cast(type) expression | |
| 4271 { Type *t; | |
| 4272 | |
| 4273 nextToken(); | |
| 4274 check(TOKlparen); | |
| 4275 t = parseBasicType(); | |
| 4276 t = parseDeclarator(t,NULL); // ( type ) | |
| 4277 check(TOKrparen); | |
| 4278 | |
| 4279 e = parseUnaryExp(); | |
| 4280 e = new CastExp(loc, e, t); | |
| 4281 break; | |
| 4282 } | |
| 4283 | |
| 4284 case TOKlparen: | |
| 4285 { Token *tk; | |
| 4286 | |
| 4287 tk = peek(&token); | |
| 4288 #if CCASTSYNTAX | |
| 4289 // If cast | |
| 4290 if (isDeclaration(tk, 0, TOKrparen, &tk)) | |
| 4291 { | |
| 4292 tk = peek(tk); // skip over right parenthesis | |
| 4293 switch (tk->value) | |
| 4294 { | |
| 4295 case TOKdot: | |
| 4296 case TOKplusplus: | |
| 4297 case TOKminusminus: | |
| 4298 case TOKnot: | |
| 4299 case TOKdelete: | |
| 4300 case TOKnew: | |
| 4301 case TOKlparen: | |
| 4302 case TOKidentifier: | |
| 4303 case TOKthis: | |
| 4304 case TOKsuper: | |
| 4305 case TOKint32v: | |
| 4306 case TOKuns32v: | |
| 4307 case TOKint64v: | |
| 4308 case TOKuns64v: | |
| 4309 case TOKfloat32v: | |
| 4310 case TOKfloat64v: | |
| 4311 case TOKfloat80v: | |
| 4312 case TOKimaginary32v: | |
| 4313 case TOKimaginary64v: | |
| 4314 case TOKimaginary80v: | |
| 4315 case TOKnull: | |
| 4316 case TOKtrue: | |
| 4317 case TOKfalse: | |
| 4318 case TOKcharv: | |
| 4319 case TOKwcharv: | |
| 4320 case TOKdcharv: | |
| 4321 case TOKstring: | |
| 4322 #if 0 | |
| 4323 case TOKtilde: | |
| 4324 case TOKand: | |
| 4325 case TOKmul: | |
| 4326 case TOKmin: | |
| 4327 case TOKadd: | |
| 4328 #endif | |
| 4329 case TOKfunction: | |
| 4330 case TOKdelegate: | |
| 4331 case TOKtypeof: | |
| 4332 CASE_BASIC_TYPES: // (type)int.size | |
| 4333 { // (type) una_exp | |
| 4334 Type *t; | |
| 4335 | |
| 4336 nextToken(); | |
| 4337 t = parseBasicType(); | |
| 4338 t = parseDeclarator(t,NULL); | |
| 4339 check(TOKrparen); | |
| 4340 | |
| 4341 // if .identifier | |
| 4342 if (token.value == TOKdot) | |
| 4343 { | |
| 4344 nextToken(); | |
| 4345 if (token.value != TOKidentifier) | |
| 4346 { error("Identifier expected following (type)."); | |
| 4347 return NULL; | |
| 4348 } | |
| 4349 e = new TypeDotIdExp(loc, t, token.ident); | |
| 4350 nextToken(); | |
| 4351 e = parsePostExp(e); | |
| 4352 } | |
| 4353 else | |
| 4354 { | |
| 4355 e = parseUnaryExp(); | |
| 4356 e = new CastExp(loc, e, t); | |
| 4357 error("C style cast illegal, use %s", e->toChars()); | |
| 4358 } | |
| 4359 return e; | |
| 4360 } | |
| 4361 } | |
| 4362 } | |
| 4363 #endif | |
| 4364 e = parsePrimaryExp(); | |
| 4365 break; | |
| 4366 } | |
| 4367 default: | |
| 4368 e = parsePrimaryExp(); | |
| 4369 break; | |
| 4370 } | |
| 4371 assert(e); | |
| 4372 return e; | |
| 4373 } | |
| 4374 | |
| 4375 Expression *Parser::parseMulExp() | |
| 4376 { Expression *e; | |
| 4377 Expression *e2; | |
| 4378 Loc loc = this->loc; | |
| 4379 | |
| 4380 e = parseUnaryExp(); | |
| 4381 while (1) | |
| 4382 { | |
| 4383 switch (token.value) | |
| 4384 { | |
| 4385 case TOKmul: nextToken(); e2 = parseUnaryExp(); e = new MulExp(loc,e,e2); continue; | |
| 4386 case TOKdiv: nextToken(); e2 = parseUnaryExp(); e = new DivExp(loc,e,e2); continue; | |
| 4387 case TOKmod: nextToken(); e2 = parseUnaryExp(); e = new ModExp(loc,e,e2); continue; | |
| 4388 | |
| 4389 default: | |
| 4390 break; | |
| 4391 } | |
| 4392 break; | |
| 4393 } | |
| 4394 return e; | |
| 4395 } | |
| 4396 | |
| 4397 Expression *Parser::parseAddExp() | |
| 4398 { Expression *e; | |
| 4399 Expression *e2; | |
| 4400 Loc loc = this->loc; | |
| 4401 | |
| 4402 e = parseMulExp(); | |
| 4403 while (1) | |
| 4404 { | |
| 4405 switch (token.value) | |
| 4406 { | |
| 4407 case TOKadd: nextToken(); e2 = parseMulExp(); e = new AddExp(loc,e,e2); continue; | |
| 4408 case TOKmin: nextToken(); e2 = parseMulExp(); e = new MinExp(loc,e,e2); continue; | |
| 4409 case TOKtilde: nextToken(); e2 = parseMulExp(); e = new CatExp(loc,e,e2); continue; | |
| 4410 | |
| 4411 default: | |
| 4412 break; | |
| 4413 } | |
| 4414 break; | |
| 4415 } | |
| 4416 return e; | |
| 4417 } | |
| 4418 | |
| 4419 Expression *Parser::parseShiftExp() | |
| 4420 { Expression *e; | |
| 4421 Expression *e2; | |
| 4422 Loc loc = this->loc; | |
| 4423 | |
| 4424 e = parseAddExp(); | |
| 4425 while (1) | |
| 4426 { | |
| 4427 switch (token.value) | |
| 4428 { | |
| 4429 case TOKshl: nextToken(); e2 = parseAddExp(); e = new ShlExp(loc,e,e2); continue; | |
| 4430 case TOKshr: nextToken(); e2 = parseAddExp(); e = new ShrExp(loc,e,e2); continue; | |
| 4431 case TOKushr: nextToken(); e2 = parseAddExp(); e = new UshrExp(loc,e,e2); continue; | |
| 4432 | |
| 4433 default: | |
| 4434 break; | |
| 4435 } | |
| 4436 break; | |
| 4437 } | |
| 4438 return e; | |
| 4439 } | |
| 4440 | |
| 4441 Expression *Parser::parseRelExp() | |
| 4442 { Expression *e; | |
| 4443 Expression *e2; | |
| 4444 enum TOK op; | |
| 4445 Loc loc = this->loc; | |
| 4446 | |
| 4447 e = parseShiftExp(); | |
| 4448 while (1) | |
| 4449 { | |
| 4450 switch (token.value) | |
| 4451 { | |
| 4452 case TOKlt: | |
| 4453 case TOKle: | |
| 4454 case TOKgt: | |
| 4455 case TOKge: | |
| 4456 case TOKunord: | |
| 4457 case TOKlg: | |
| 4458 case TOKleg: | |
| 4459 case TOKule: | |
| 4460 case TOKul: | |
| 4461 case TOKuge: | |
| 4462 case TOKug: | |
| 4463 case TOKue: | |
| 4464 op = token.value; | |
| 4465 nextToken(); | |
| 4466 e2 = parseShiftExp(); | |
| 4467 e = new CmpExp(op, loc, e, e2); | |
| 4468 continue; | |
| 4469 | |
| 4470 case TOKin: | |
| 4471 nextToken(); | |
| 4472 e2 = parseShiftExp(); | |
| 4473 e = new InExp(loc, e, e2); | |
| 4474 continue; | |
| 4475 | |
| 4476 default: | |
| 4477 break; | |
| 4478 } | |
| 4479 break; | |
| 4480 } | |
| 4481 return e; | |
| 4482 } | |
| 4483 | |
| 4484 Expression *Parser::parseEqualExp() | |
| 4485 { Expression *e; | |
| 4486 Expression *e2; | |
| 4487 Token *t; | |
| 4488 Loc loc = this->loc; | |
| 4489 | |
| 4490 e = parseRelExp(); | |
| 4491 while (1) | |
| 4492 { enum TOK value = token.value; | |
| 4493 | |
| 4494 switch (value) | |
| 4495 { | |
| 4496 case TOKequal: | |
| 4497 case TOKnotequal: | |
| 4498 nextToken(); | |
| 4499 e2 = parseRelExp(); | |
| 4500 e = new EqualExp(value, loc, e, e2); | |
| 4501 continue; | |
| 4502 | |
| 4503 case TOKidentity: | |
| 4504 error("'===' is no longer legal, use 'is' instead"); | |
| 4505 goto L1; | |
| 4506 | |
| 4507 case TOKnotidentity: | |
| 4508 error("'!==' is no longer legal, use '!is' instead"); | |
| 4509 goto L1; | |
| 4510 | |
| 4511 case TOKis: | |
| 4512 value = TOKidentity; | |
| 4513 goto L1; | |
| 4514 | |
| 4515 case TOKnot: | |
| 4516 // Attempt to identify '!is' | |
| 4517 t = peek(&token); | |
| 4518 if (t->value != TOKis) | |
| 4519 break; | |
| 4520 nextToken(); | |
| 4521 value = TOKnotidentity; | |
| 4522 goto L1; | |
| 4523 | |
| 4524 L1: | |
| 4525 nextToken(); | |
| 4526 e2 = parseRelExp(); | |
| 4527 e = new IdentityExp(value, loc, e, e2); | |
| 4528 continue; | |
| 4529 | |
| 4530 default: | |
| 4531 break; | |
| 4532 } | |
| 4533 break; | |
| 4534 } | |
| 4535 return e; | |
| 4536 } | |
| 4537 | |
| 4538 Expression *Parser::parseCmpExp() | |
| 4539 { Expression *e; | |
| 4540 Expression *e2; | |
| 4541 Token *t; | |
| 4542 Loc loc = this->loc; | |
| 4543 | |
| 4544 e = parseShiftExp(); | |
| 4545 enum TOK op = token.value; | |
| 4546 | |
| 4547 switch (op) | |
| 4548 { | |
| 4549 case TOKequal: | |
| 4550 case TOKnotequal: | |
| 4551 nextToken(); | |
| 4552 e2 = parseShiftExp(); | |
| 4553 e = new EqualExp(op, loc, e, e2); | |
| 4554 break; | |
| 4555 | |
| 4556 case TOKis: | |
| 4557 op = TOKidentity; | |
| 4558 goto L1; | |
| 4559 | |
| 4560 case TOKnot: | |
| 4561 // Attempt to identify '!is' | |
| 4562 t = peek(&token); | |
| 4563 if (t->value != TOKis) | |
| 4564 break; | |
| 4565 nextToken(); | |
| 4566 op = TOKnotidentity; | |
| 4567 goto L1; | |
| 4568 | |
| 4569 L1: | |
| 4570 nextToken(); | |
| 4571 e2 = parseShiftExp(); | |
| 4572 e = new IdentityExp(op, loc, e, e2); | |
| 4573 break; | |
| 4574 | |
| 4575 case TOKlt: | |
| 4576 case TOKle: | |
| 4577 case TOKgt: | |
| 4578 case TOKge: | |
| 4579 case TOKunord: | |
| 4580 case TOKlg: | |
| 4581 case TOKleg: | |
| 4582 case TOKule: | |
| 4583 case TOKul: | |
| 4584 case TOKuge: | |
| 4585 case TOKug: | |
| 4586 case TOKue: | |
| 4587 nextToken(); | |
| 4588 e2 = parseShiftExp(); | |
| 4589 e = new CmpExp(op, loc, e, e2); | |
| 4590 break; | |
| 4591 | |
| 4592 case TOKin: | |
| 4593 nextToken(); | |
| 4594 e2 = parseShiftExp(); | |
| 4595 e = new InExp(loc, e, e2); | |
| 4596 break; | |
| 4597 | |
| 4598 default: | |
| 4599 break; | |
| 4600 } | |
| 4601 return e; | |
| 4602 } | |
| 4603 | |
| 4604 Expression *Parser::parseAndExp() | |
| 4605 { Expression *e; | |
| 4606 Expression *e2; | |
| 4607 Loc loc = this->loc; | |
| 4608 | |
| 4609 if (global.params.Dversion == 1) | |
| 4610 { | |
| 4611 e = parseEqualExp(); | |
| 4612 while (token.value == TOKand) | |
| 4613 { | |
| 4614 nextToken(); | |
| 4615 e2 = parseEqualExp(); | |
| 4616 e = new AndExp(loc,e,e2); | |
| 4617 loc = this->loc; | |
| 4618 } | |
| 4619 } | |
| 4620 else | |
| 4621 { | |
| 4622 e = parseCmpExp(); | |
| 4623 while (token.value == TOKand) | |
| 4624 { | |
| 4625 nextToken(); | |
| 4626 e2 = parseCmpExp(); | |
| 4627 e = new AndExp(loc,e,e2); | |
| 4628 loc = this->loc; | |
| 4629 } | |
| 4630 } | |
| 4631 return e; | |
| 4632 } | |
| 4633 | |
| 4634 Expression *Parser::parseXorExp() | |
| 4635 { Expression *e; | |
| 4636 Expression *e2; | |
| 4637 Loc loc = this->loc; | |
| 4638 | |
| 4639 e = parseAndExp(); | |
| 4640 while (token.value == TOKxor) | |
| 4641 { | |
| 4642 nextToken(); | |
| 4643 e2 = parseAndExp(); | |
| 4644 e = new XorExp(loc, e, e2); | |
| 4645 } | |
| 4646 return e; | |
| 4647 } | |
| 4648 | |
| 4649 Expression *Parser::parseOrExp() | |
| 4650 { Expression *e; | |
| 4651 Expression *e2; | |
| 4652 Loc loc = this->loc; | |
| 4653 | |
| 4654 e = parseXorExp(); | |
| 4655 while (token.value == TOKor) | |
| 4656 { | |
| 4657 nextToken(); | |
| 4658 e2 = parseXorExp(); | |
| 4659 e = new OrExp(loc, e, e2); | |
| 4660 } | |
| 4661 return e; | |
| 4662 } | |
| 4663 | |
| 4664 Expression *Parser::parseAndAndExp() | |
| 4665 { Expression *e; | |
| 4666 Expression *e2; | |
| 4667 Loc loc = this->loc; | |
| 4668 | |
| 4669 e = parseOrExp(); | |
| 4670 while (token.value == TOKandand) | |
| 4671 { | |
| 4672 nextToken(); | |
| 4673 e2 = parseOrExp(); | |
| 4674 e = new AndAndExp(loc, e, e2); | |
| 4675 } | |
| 4676 return e; | |
| 4677 } | |
| 4678 | |
| 4679 Expression *Parser::parseOrOrExp() | |
| 4680 { Expression *e; | |
| 4681 Expression *e2; | |
| 4682 Loc loc = this->loc; | |
| 4683 | |
| 4684 e = parseAndAndExp(); | |
| 4685 while (token.value == TOKoror) | |
| 4686 { | |
| 4687 nextToken(); | |
| 4688 e2 = parseAndAndExp(); | |
| 4689 e = new OrOrExp(loc, e, e2); | |
| 4690 } | |
| 4691 return e; | |
| 4692 } | |
| 4693 | |
| 4694 Expression *Parser::parseCondExp() | |
| 4695 { Expression *e; | |
| 4696 Expression *e1; | |
| 4697 Expression *e2; | |
| 4698 Loc loc = this->loc; | |
| 4699 | |
| 4700 e = parseOrOrExp(); | |
| 4701 if (token.value == TOKquestion) | |
| 4702 { | |
| 4703 nextToken(); | |
| 4704 e1 = parseExpression(); | |
| 4705 check(TOKcolon); | |
| 4706 e2 = parseCondExp(); | |
| 4707 e = new CondExp(loc, e, e1, e2); | |
| 4708 } | |
| 4709 return e; | |
| 4710 } | |
| 4711 | |
| 4712 Expression *Parser::parseAssignExp() | |
| 4713 { Expression *e; | |
| 4714 Expression *e2; | |
| 4715 Loc loc; | |
| 4716 | |
| 4717 e = parseCondExp(); | |
| 4718 while (1) | |
| 4719 { | |
| 4720 loc = this->loc; | |
| 4721 switch (token.value) | |
| 4722 { | |
| 4723 #define X(tok,ector) \ | |
| 4724 case tok: nextToken(); e2 = parseAssignExp(); e = new ector(loc,e,e2); continue; | |
| 4725 | |
| 4726 X(TOKassign, AssignExp); | |
| 4727 X(TOKaddass, AddAssignExp); | |
| 4728 X(TOKminass, MinAssignExp); | |
| 4729 X(TOKmulass, MulAssignExp); | |
| 4730 X(TOKdivass, DivAssignExp); | |
| 4731 X(TOKmodass, ModAssignExp); | |
| 4732 X(TOKandass, AndAssignExp); | |
| 4733 X(TOKorass, OrAssignExp); | |
| 4734 X(TOKxorass, XorAssignExp); | |
| 4735 X(TOKshlass, ShlAssignExp); | |
| 4736 X(TOKshrass, ShrAssignExp); | |
| 4737 X(TOKushrass, UshrAssignExp); | |
| 4738 X(TOKcatass, CatAssignExp); | |
| 4739 | |
| 4740 #undef X | |
| 4741 default: | |
| 4742 break; | |
| 4743 } | |
| 4744 break; | |
| 4745 } | |
| 4746 return e; | |
| 4747 } | |
| 4748 | |
| 4749 Expression *Parser::parseExpression() | |
| 4750 { Expression *e; | |
| 4751 Expression *e2; | |
| 4752 Loc loc = this->loc; | |
| 4753 | |
| 4754 //printf("Parser::parseExpression()\n"); | |
| 4755 e = parseAssignExp(); | |
| 4756 while (token.value == TOKcomma) | |
| 4757 { | |
| 4758 nextToken(); | |
| 4759 e2 = parseAssignExp(); | |
| 4760 e = new CommaExp(loc, e, e2); | |
| 4761 loc = this->loc; | |
| 4762 } | |
| 4763 return e; | |
| 4764 } | |
| 4765 | |
| 4766 | |
| 4767 /************************* | |
| 4768 * Collect argument list. | |
| 4769 * Assume current token is '(' or '['. | |
| 4770 */ | |
| 4771 | |
| 4772 Expressions *Parser::parseArguments() | |
| 4773 { // function call | |
| 4774 Expressions *arguments; | |
| 4775 Expression *arg; | |
| 4776 enum TOK endtok; | |
| 4777 | |
| 4778 arguments = new Expressions(); | |
| 4779 if (token.value == TOKlbracket) | |
| 4780 endtok = TOKrbracket; | |
| 4781 else | |
| 4782 endtok = TOKrparen; | |
| 4783 | |
| 4784 { | |
| 4785 nextToken(); | |
| 4786 if (token.value != endtok) | |
| 4787 { | |
| 4788 while (1) | |
| 4789 { | |
| 4790 arg = parseAssignExp(); | |
| 4791 arguments->push(arg); | |
| 4792 if (token.value == endtok) | |
| 4793 break; | |
| 4794 check(TOKcomma); | |
| 4795 } | |
| 4796 } | |
| 4797 check(endtok); | |
| 4798 } | |
| 4799 return arguments; | |
| 4800 } | |
| 4801 | |
| 4802 /******************************************* | |
| 4803 */ | |
| 4804 | |
| 4805 Expression *Parser::parseNewExp(Expression *thisexp) | |
| 4806 { Type *t; | |
| 4807 Expressions *newargs; | |
| 4808 Expressions *arguments = NULL; | |
| 4809 Expression *e; | |
| 4810 Loc loc = this->loc; | |
| 4811 | |
| 4812 nextToken(); | |
| 4813 newargs = NULL; | |
| 4814 if (token.value == TOKlparen) | |
| 4815 { | |
| 4816 newargs = parseArguments(); | |
| 4817 } | |
| 4818 | |
| 4819 // An anonymous nested class starts with "class" | |
| 4820 if (token.value == TOKclass) | |
| 4821 { | |
| 4822 nextToken(); | |
| 4823 if (token.value == TOKlparen) | |
| 4824 arguments = parseArguments(); | |
| 4825 | |
| 4826 BaseClasses *baseclasses = NULL; | |
| 4827 if (token.value != TOKlcurly) | |
| 4828 baseclasses = parseBaseClasses(); | |
| 4829 | |
| 4830 Identifier *id = NULL; | |
| 4831 ClassDeclaration *cd = new ClassDeclaration(loc, id, baseclasses); | |
| 4832 | |
| 4833 if (token.value != TOKlcurly) | |
| 4834 { error("{ members } expected for anonymous class"); | |
| 4835 cd->members = NULL; | |
| 4836 } | |
| 4837 else | |
| 4838 { | |
| 4839 nextToken(); | |
| 4840 Array *decl = parseDeclDefs(0); | |
| 4841 if (token.value != TOKrcurly) | |
| 4842 error("class member expected"); | |
| 4843 nextToken(); | |
| 4844 cd->members = decl; | |
| 4845 } | |
| 4846 | |
| 4847 e = new NewAnonClassExp(loc, thisexp, newargs, cd, arguments); | |
| 4848 | |
| 4849 return e; | |
| 4850 } | |
| 4851 | |
| 4852 #if LTORARRAYDECL | |
| 4853 t = parseBasicType(); | |
| 4854 t = parseBasicType2(t); | |
| 4855 if (t->ty == Taarray) | |
| 4856 { | |
| 4857 Type *index = ((TypeAArray *)t)->index; | |
| 4858 | |
| 4859 Expression *e = index->toExpression(); | |
| 4860 if (e) | |
| 4861 { arguments = new Expressions(); | |
| 4862 arguments->push(e); | |
| 4863 t = new TypeDArray(t->next); | |
| 4864 } | |
| 4865 else | |
| 4866 { | |
| 4867 error("need size of rightmost array, not type %s", index->toChars()); | |
| 4868 return new NullExp(loc); | |
| 4869 } | |
| 4870 } | |
| 4871 else if (t->ty == Tsarray) | |
| 4872 { | |
| 4873 TypeSArray *tsa = (TypeSArray *)t; | |
| 4874 Expression *e = tsa->dim; | |
| 4875 | |
| 4876 arguments = new Expressions(); | |
| 4877 arguments->push(e); | |
| 4878 t = new TypeDArray(t->next); | |
| 4879 } | |
| 4880 else if (token.value == TOKlparen) | |
| 4881 { | |
| 4882 arguments = parseArguments(); | |
| 4883 } | |
| 4884 #else | |
| 4885 t = parseBasicType(); | |
| 4886 while (token.value == TOKmul) | |
| 4887 { t = new TypePointer(t); | |
| 4888 nextToken(); | |
| 4889 } | |
| 4890 if (token.value == TOKlbracket) | |
| 4891 { | |
| 4892 Expression *e; | |
| 4893 | |
| 4894 nextToken(); | |
| 4895 e = parseAssignExp(); | |
| 4896 arguments = new Array(); | |
| 4897 arguments->push(e); | |
| 4898 check(TOKrbracket); | |
| 4899 t = parseDeclarator(t, NULL); | |
| 4900 t = new TypeDArray(t); | |
| 4901 } | |
| 4902 else if (token.value == TOKlparen) | |
| 4903 arguments = parseArguments(); | |
| 4904 #endif | |
| 4905 e = new NewExp(loc, thisexp, newargs, t, arguments); | |
| 4906 return e; | |
| 4907 } | |
| 4908 | |
| 4909 /********************************************** | |
| 4910 */ | |
| 4911 | |
| 4912 void Parser::addComment(Dsymbol *s, unsigned char *blockComment) | |
| 4913 { | |
| 4914 s->addComment(combineComments(blockComment, token.lineComment)); | |
| 4915 } | |
| 4916 | |
| 4917 | |
| 4918 /********************************* ***************************/ | |
| 4919 |