Mercurial > projects > ldc
annotate dmd/parse.c @ 846:bc982f1ad106
Merged DMD 1.037 frontend
| author | Tomas Lindquist Olsen <tomas.l.olsen@gmail.com> |
|---|---|
| date | Sat, 13 Dec 2008 13:15:31 +0100 |
| parents | 041c1596d217 |
| children | b30fe7e1dbb9 |
| rev | line source |
|---|---|
| 336 | 1 |
| 2 // Compiler implementation of the D programming language | |
| 3 // Copyright (c) 1999-2008 by Digital Mars | |
| 4 // All Rights Reserved | |
| 5 // written by Walter Bright | |
| 6 // http://www.digitalmars.com | |
| 7 // License for redistribution is by either the Artistic License | |
| 8 // in artistic.txt, or the GNU General Public License in gnu.txt. | |
| 9 // See the included readme.txt for details. | |
| 10 | |
| 11 // This is the D parser | |
| 12 | |
| 13 #include <stdio.h> | |
| 14 #include <assert.h> | |
| 15 | |
| 16 #include "mem.h" | |
| 17 #include "lexer.h" | |
| 18 #include "parse.h" | |
| 19 #include "init.h" | |
| 20 #include "attrib.h" | |
| 21 #include "cond.h" | |
| 22 #include "mtype.h" | |
| 23 #include "template.h" | |
| 24 #include "staticassert.h" | |
| 25 #include "expression.h" | |
| 26 #include "statement.h" | |
| 27 #include "module.h" | |
| 28 #include "dsymbol.h" | |
| 29 #include "import.h" | |
| 30 #include "declaration.h" | |
| 31 #include "aggregate.h" | |
| 32 #include "enum.h" | |
| 33 #include "id.h" | |
| 34 #include "version.h" | |
| 35 | |
| 36 // How multiple declarations are parsed. | |
| 37 // If 1, treat as C. | |
| 38 // If 0, treat: | |
| 39 // int *p, i; | |
| 40 // as: | |
| 41 // int* p; | |
| 42 // int* i; | |
| 43 #define CDECLSYNTAX 0 | |
| 44 | |
| 45 // Support C cast syntax: | |
| 46 // (type)(expression) | |
| 47 #define CCASTSYNTAX 1 | |
| 48 | |
| 49 // Support postfix C array declarations, such as | |
| 50 // int a[3][4]; | |
| 51 #define CARRAYDECL 1 | |
| 52 | |
| 53 // Support left-to-right array declarations | |
| 54 #define LTORARRAYDECL 1 | |
| 55 | |
| 56 | |
| 57 Parser::Parser(Module *module, unsigned char *base, unsigned length, int doDocComment) | |
| 58 : Lexer(module, base, 0, length, doDocComment, 0) | |
| 59 { | |
| 60 //printf("Parser::Parser()\n"); | |
| 61 md = NULL; | |
| 62 linkage = LINKd; | |
| 63 endloc = 0; | |
| 64 inBrackets = 0; | |
| 65 //nextToken(); // start up the scanner | |
| 66 } | |
| 67 | |
| 68 Array *Parser::parseModule() | |
| 69 { | |
| 70 Array *decldefs; | |
| 71 | |
| 72 // ModuleDeclation leads off | |
| 73 if (token.value == TOKmodule) | |
| 74 { | |
| 75 unsigned char *comment = token.blockComment; | |
| 76 | |
| 77 nextToken(); | |
| 78 if (token.value != TOKidentifier) | |
| 79 { error("Identifier expected following module"); | |
| 80 goto Lerr; | |
| 81 } | |
| 82 else | |
| 83 { | |
| 84 Array *a = NULL; | |
| 85 Identifier *id; | |
| 86 | |
| 87 id = token.ident; | |
| 88 while (nextToken() == TOKdot) | |
| 89 { | |
| 90 if (!a) | |
| 91 a = new Array(); | |
| 92 a->push(id); | |
| 93 nextToken(); | |
| 94 if (token.value != TOKidentifier) | |
| 95 { error("Identifier expected following package"); | |
| 96 goto Lerr; | |
| 97 } | |
| 98 id = token.ident; | |
| 99 } | |
| 100 | |
| 101 md = new ModuleDeclaration(a, id); | |
| 102 | |
| 103 if (token.value != TOKsemicolon) | |
| 104 error("';' expected following module declaration instead of %s", token.toChars()); | |
| 105 nextToken(); | |
| 106 addComment(mod, comment); | |
| 107 } | |
| 108 } | |
| 109 | |
| 110 decldefs = parseDeclDefs(0); | |
| 111 if (token.value != TOKeof) | |
| 112 { error("unrecognized declaration"); | |
| 113 goto Lerr; | |
| 114 } | |
| 115 return decldefs; | |
| 116 | |
| 117 Lerr: | |
| 118 while (token.value != TOKsemicolon && token.value != TOKeof) | |
| 119 nextToken(); | |
| 120 nextToken(); | |
| 121 return new Array(); | |
| 122 } | |
| 123 | |
| 124 Array *Parser::parseDeclDefs(int once) | |
| 125 { Dsymbol *s; | |
| 126 Array *decldefs; | |
| 127 Array *a; | |
| 128 Array *aelse; | |
| 129 enum PROT prot; | |
| 130 unsigned stc; | |
| 131 Condition *condition; | |
| 132 unsigned char *comment; | |
| 133 | |
| 134 //printf("Parser::parseDeclDefs()\n"); | |
| 135 decldefs = new Array(); | |
| 136 do | |
| 137 { | |
| 138 comment = token.blockComment; | |
| 139 switch (token.value) | |
| 140 { | |
| 141 case TOKenum: | |
| 142 s = parseEnum(); | |
| 143 break; | |
| 144 | |
| 145 case TOKstruct: | |
| 146 case TOKunion: | |
| 147 case TOKclass: | |
| 148 case TOKinterface: | |
| 149 s = parseAggregate(); | |
| 150 break; | |
| 151 | |
| 152 case TOKimport: | |
| 153 s = parseImport(decldefs, 0); | |
| 154 break; | |
| 155 | |
| 156 case TOKtemplate: | |
| 157 s = (Dsymbol *)parseTemplateDeclaration(); | |
| 158 break; | |
| 159 | |
| 160 case TOKmixin: | |
| 161 { Loc loc = this->loc; | |
| 162 if (peek(&token)->value == TOKlparen) | |
| 163 { // mixin(string) | |
| 164 nextToken(); | |
| 165 check(TOKlparen, "mixin"); | |
| 166 Expression *e = parseAssignExp(); | |
| 167 check(TOKrparen); | |
| 168 check(TOKsemicolon); | |
| 169 s = new CompileDeclaration(loc, e); | |
| 170 break; | |
| 171 } | |
| 172 s = parseMixin(); | |
| 173 break; | |
| 174 } | |
| 175 | |
| 176 CASE_BASIC_TYPES: | |
| 177 case TOKalias: | |
| 178 case TOKtypedef: | |
| 179 case TOKidentifier: | |
| 180 case TOKtypeof: | |
| 181 case TOKdot: | |
| 182 Ldeclaration: | |
| 183 a = parseDeclarations(); | |
| 184 decldefs->append(a); | |
| 185 continue; | |
| 186 | |
| 187 case TOKthis: | |
| 188 s = parseCtor(); | |
| 189 break; | |
| 190 | |
| 191 case TOKtilde: | |
| 192 s = parseDtor(); | |
| 193 break; | |
| 194 | |
| 195 case TOKinvariant: | |
| 196 #if 1 | |
| 197 s = parseInvariant(); | |
| 198 #else | |
| 199 if (peek(&token)->value == TOKlcurly) | |
| 200 s = parseInvariant(); | |
| 201 else | |
| 202 { | |
| 203 stc = STCinvariant; | |
| 204 goto Lstc; | |
| 205 } | |
| 206 #endif | |
| 207 break; | |
| 208 | |
| 209 case TOKunittest: | |
| 210 s = parseUnitTest(); | |
| 211 break; | |
| 212 | |
| 213 case TOKnew: | |
| 214 s = parseNew(); | |
| 215 break; | |
| 216 | |
| 217 case TOKdelete: | |
| 218 s = parseDelete(); | |
| 219 break; | |
| 220 | |
| 221 case TOKeof: | |
| 222 case TOKrcurly: | |
| 223 return decldefs; | |
| 224 | |
| 225 case TOKstatic: | |
| 226 nextToken(); | |
| 227 if (token.value == TOKthis) | |
| 228 s = parseStaticCtor(); | |
| 229 else if (token.value == TOKtilde) | |
| 230 s = parseStaticDtor(); | |
| 231 else if (token.value == TOKassert) | |
| 232 s = parseStaticAssert(); | |
| 233 else if (token.value == TOKif) | |
| 234 { condition = parseStaticIfCondition(); | |
| 235 a = parseBlock(); | |
| 236 aelse = NULL; | |
| 237 if (token.value == TOKelse) | |
| 238 { nextToken(); | |
| 239 aelse = parseBlock(); | |
| 240 } | |
| 241 s = new StaticIfDeclaration(condition, a, aelse); | |
| 242 break; | |
| 243 } | |
| 244 else if (token.value == TOKimport) | |
| 245 { | |
| 246 s = parseImport(decldefs, 1); | |
| 247 } | |
| 248 else | |
| 249 { stc = STCstatic; | |
| 250 goto Lstc2; | |
| 251 } | |
| 252 break; | |
| 253 | |
| 254 case TOKconst: stc = STCconst; goto Lstc; | |
| 255 case TOKfinal: stc = STCfinal; goto Lstc; | |
| 256 case TOKauto: stc = STCauto; goto Lstc; | |
| 257 case TOKscope: stc = STCscope; goto Lstc; | |
| 258 case TOKoverride: stc = STCoverride; goto Lstc; | |
| 259 case TOKabstract: stc = STCabstract; goto Lstc; | |
| 260 case TOKsynchronized: stc = STCsynchronized; goto Lstc; | |
| 261 case TOKdeprecated: stc = STCdeprecated; goto Lstc; | |
| 262 | |
| 263 Lstc: | |
| 264 nextToken(); | |
| 265 Lstc2: | |
| 266 switch (token.value) | |
| 267 { | |
| 268 case TOKconst: stc |= STCconst; goto Lstc; | |
| 269 case TOKfinal: stc |= STCfinal; goto Lstc; | |
| 270 case TOKauto: stc |= STCauto; goto Lstc; | |
| 271 case TOKscope: stc |= STCscope; goto Lstc; | |
| 272 case TOKoverride: stc |= STCoverride; goto Lstc; | |
| 273 case TOKabstract: stc |= STCabstract; goto Lstc; | |
| 274 case TOKsynchronized: stc |= STCsynchronized; goto Lstc; | |
| 275 case TOKdeprecated: stc |= STCdeprecated; goto Lstc; | |
| 276 //case TOKinvariant: stc |= STCinvariant; goto Lstc; | |
| 277 default: | |
| 278 break; | |
| 279 } | |
| 280 | |
| 281 /* Look for auto initializers: | |
| 282 * storage_class identifier = initializer; | |
| 283 */ | |
| 284 if (token.value == TOKidentifier && | |
| 285 peek(&token)->value == TOKassign) | |
| 286 { | |
| 287 while (1) | |
| 288 { | |
| 289 Identifier *ident = token.ident; | |
| 290 nextToken(); | |
| 291 nextToken(); | |
| 292 Initializer *init = parseInitializer(); | |
| 293 VarDeclaration *v = new VarDeclaration(loc, NULL, ident, init); | |
| 294 v->storage_class = stc; | |
| 295 s = v; | |
| 296 if (token.value == TOKsemicolon) | |
| 297 { | |
| 298 nextToken(); | |
| 299 } | |
| 300 else if (token.value == TOKcomma) | |
| 301 { | |
| 302 nextToken(); | |
| 303 if (token.value == TOKidentifier && | |
| 304 peek(&token)->value == TOKassign) | |
| 305 { | |
| 306 decldefs->push(s); | |
| 307 addComment(s, comment); | |
| 308 continue; | |
| 309 } | |
| 310 else | |
| 311 error("Identifier expected following comma"); | |
| 312 } | |
| 313 else | |
| 314 error("semicolon expected following auto declaration, not '%s'", token.toChars()); | |
| 315 break; | |
| 316 } | |
| 317 } | |
| 318 else | |
| 319 { a = parseBlock(); | |
| 320 s = new StorageClassDeclaration(stc, a); | |
| 321 } | |
| 322 break; | |
| 323 | |
| 324 case TOKextern: | |
| 325 if (peek(&token)->value != TOKlparen) | |
| 326 { stc = STCextern; | |
| 327 goto Lstc; | |
| 328 } | |
| 329 { | |
| 330 enum LINK linksave = linkage; | |
| 331 linkage = parseLinkage(); | |
| 332 a = parseBlock(); | |
| 333 s = new LinkDeclaration(linkage, a); | |
| 334 linkage = linksave; | |
| 335 break; | |
| 336 } | |
| 337 case TOKprivate: prot = PROTprivate; goto Lprot; | |
| 338 case TOKpackage: prot = PROTpackage; goto Lprot; | |
| 339 case TOKprotected: prot = PROTprotected; goto Lprot; | |
| 340 case TOKpublic: prot = PROTpublic; goto Lprot; | |
| 341 case TOKexport: prot = PROTexport; goto Lprot; | |
| 342 | |
| 343 Lprot: | |
| 344 nextToken(); | |
| 345 a = parseBlock(); | |
| 346 s = new ProtDeclaration(prot, a); | |
| 347 break; | |
| 348 | |
| 349 case TOKalign: | |
| 350 { unsigned n; | |
| 351 | |
|
737
041c1596d217
Removed warnings on ignored aligns. Only do aligment on packed structs, align(1) struct Packed { ... }
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
changeset
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352 // LDC better align code locations |
|
041c1596d217
Removed warnings on ignored aligns. Only do aligment on packed structs, align(1) struct Packed { ... }
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
721
diff
changeset
|
353 Loc alignloc = loc; |
|
041c1596d217
Removed warnings on ignored aligns. Only do aligment on packed structs, align(1) struct Packed { ... }
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
721
diff
changeset
|
354 |
| 336 | 355 s = NULL; |
| 356 nextToken(); | |
| 357 if (token.value == TOKlparen) | |
| 358 { | |
| 359 nextToken(); | |
| 360 if (token.value == TOKint32v) | |
| 361 n = (unsigned)token.uns64value; | |
| 362 else | |
| 363 { error("integer expected, not %s", token.toChars()); | |
| 364 n = 1; | |
| 365 } | |
| 366 nextToken(); | |
| 367 check(TOKrparen); | |
| 368 } | |
| 369 else | |
| 370 n = global.structalign; // default | |
| 371 | |
| 372 a = parseBlock(); | |
|
737
041c1596d217
Removed warnings on ignored aligns. Only do aligment on packed structs, align(1) struct Packed { ... }
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
721
diff
changeset
|
373 s = new AlignDeclaration(alignloc, n, a); |
| 336 | 374 break; |
| 375 } | |
| 376 | |
| 377 case TOKpragma: | |
| 378 { Identifier *ident; | |
| 379 Expressions *args = NULL; | |
| 380 | |
| 381 nextToken(); | |
| 382 check(TOKlparen); | |
| 383 if (token.value != TOKidentifier) | |
| 384 { error("pragma(identifier expected"); | |
| 385 goto Lerror; | |
| 386 } | |
| 387 ident = token.ident; | |
| 388 nextToken(); | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
737
diff
changeset
|
389 if (token.value == TOKcomma && peekNext() != TOKrparen) |
| 336 | 390 args = parseArguments(); // pragma(identifier, args...) |
| 391 else | |
| 392 check(TOKrparen); // pragma(identifier) | |
| 393 | |
| 394 if (token.value == TOKsemicolon) | |
| 395 a = NULL; | |
| 396 else | |
| 397 a = parseBlock(); | |
| 398 s = new PragmaDeclaration(loc, ident, args, a); | |
| 399 break; | |
| 400 } | |
| 401 | |
| 402 case TOKdebug: | |
| 403 nextToken(); | |
| 404 if (token.value == TOKassign) | |
| 405 { | |
| 406 nextToken(); | |
| 407 if (token.value == TOKidentifier) | |
| 408 s = new DebugSymbol(loc, token.ident); | |
| 409 else if (token.value == TOKint32v) | |
| 410 s = new DebugSymbol(loc, (unsigned)token.uns64value); | |
| 411 else | |
| 412 { error("identifier or integer expected, not %s", token.toChars()); | |
| 413 s = NULL; | |
| 414 } | |
| 415 nextToken(); | |
| 416 if (token.value != TOKsemicolon) | |
| 417 error("semicolon expected"); | |
| 418 nextToken(); | |
| 419 break; | |
| 420 } | |
| 421 | |
| 422 condition = parseDebugCondition(); | |
| 423 goto Lcondition; | |
| 424 | |
| 425 case TOKversion: | |
| 426 nextToken(); | |
| 427 if (token.value == TOKassign) | |
| 428 { | |
| 429 nextToken(); | |
| 430 if (token.value == TOKidentifier) | |
| 431 s = new VersionSymbol(loc, token.ident); | |
| 432 else if (token.value == TOKint32v) | |
| 433 s = new VersionSymbol(loc, (unsigned)token.uns64value); | |
| 434 else | |
| 435 { error("identifier or integer expected, not %s", token.toChars()); | |
| 436 s = NULL; | |
| 437 } | |
| 438 nextToken(); | |
| 439 if (token.value != TOKsemicolon) | |
| 440 error("semicolon expected"); | |
| 441 nextToken(); | |
| 442 break; | |
| 443 } | |
| 444 condition = parseVersionCondition(); | |
| 445 goto Lcondition; | |
| 446 | |
| 447 Lcondition: | |
| 448 a = parseBlock(); | |
| 449 aelse = NULL; | |
| 450 if (token.value == TOKelse) | |
| 451 { nextToken(); | |
| 452 aelse = parseBlock(); | |
| 453 } | |
| 454 s = new ConditionalDeclaration(condition, a, aelse); | |
| 455 break; | |
| 456 | |
| 457 case TOKsemicolon: // empty declaration | |
| 458 nextToken(); | |
| 459 continue; | |
| 460 | |
| 461 default: | |
| 462 error("Declaration expected, not '%s'",token.toChars()); | |
| 463 Lerror: | |
| 464 while (token.value != TOKsemicolon && token.value != TOKeof) | |
| 465 nextToken(); | |
| 466 nextToken(); | |
| 467 s = NULL; | |
| 468 continue; | |
| 469 } | |
| 470 if (s) | |
| 471 { decldefs->push(s); | |
| 472 addComment(s, comment); | |
| 473 } | |
| 474 } while (!once); | |
| 475 return decldefs; | |
| 476 } | |
| 477 | |
| 478 | |
| 479 /******************************************** | |
| 480 * Parse declarations after an align, protection, or extern decl. | |
| 481 */ | |
| 482 | |
| 483 Array *Parser::parseBlock() | |
| 484 { | |
| 485 Array *a = NULL; | |
| 486 Dsymbol *s; | |
| 487 | |
| 488 //printf("parseBlock()\n"); | |
| 489 switch (token.value) | |
| 490 { | |
| 491 case TOKsemicolon: | |
| 492 error("declaration expected following attribute, not ';'"); | |
| 493 nextToken(); | |
| 494 break; | |
| 495 | |
| 496 case TOKlcurly: | |
| 497 nextToken(); | |
| 498 a = parseDeclDefs(0); | |
| 499 if (token.value != TOKrcurly) | |
| 500 { /* { */ | |
| 501 error("matching '}' expected, not %s", token.toChars()); | |
| 502 } | |
| 503 else | |
| 504 nextToken(); | |
| 505 break; | |
| 506 | |
| 507 case TOKcolon: | |
| 508 nextToken(); | |
| 509 #if 0 | |
| 510 a = NULL; | |
| 511 #else | |
| 512 a = parseDeclDefs(0); // grab declarations up to closing curly bracket | |
| 513 #endif | |
| 514 break; | |
| 515 | |
| 516 default: | |
| 517 a = parseDeclDefs(1); | |
| 518 break; | |
| 519 } | |
| 520 return a; | |
| 521 } | |
| 522 | |
| 523 /********************************** | |
| 524 * Parse a static assertion. | |
| 525 */ | |
| 526 | |
| 527 StaticAssert *Parser::parseStaticAssert() | |
| 528 { | |
| 529 Loc loc = this->loc; | |
| 530 Expression *exp; | |
| 531 Expression *msg = NULL; | |
| 532 | |
| 533 //printf("parseStaticAssert()\n"); | |
| 534 nextToken(); | |
| 535 check(TOKlparen); | |
| 536 exp = parseAssignExp(); | |
| 537 if (token.value == TOKcomma) | |
| 538 { nextToken(); | |
| 539 msg = parseAssignExp(); | |
| 540 } | |
| 541 check(TOKrparen); | |
| 542 check(TOKsemicolon); | |
| 543 return new StaticAssert(loc, exp, msg); | |
| 544 } | |
| 545 | |
| 546 /*********************************** | |
| 547 * Parse typeof(expression). | |
| 548 * Current token is on the 'typeof'. | |
| 549 */ | |
| 550 | |
| 551 #if DMDV2 | |
| 552 TypeQualified *Parser::parseTypeof() | |
| 553 { TypeQualified *t; | |
| 554 Loc loc = this->loc; | |
| 555 | |
| 556 nextToken(); | |
| 557 check(TOKlparen); | |
| 558 if (token.value == TOKreturn) // typeof(return) | |
| 559 { | |
| 560 nextToken(); | |
| 561 t = new TypeReturn(loc); | |
| 562 } | |
| 563 else | |
| 564 { Expression *exp = parseExpression(); // typeof(expression) | |
| 565 t = new TypeTypeof(loc, exp); | |
| 566 } | |
| 567 check(TOKrparen); | |
| 568 return t; | |
| 569 } | |
| 570 #endif | |
| 571 | |
| 572 /*********************************** | |
| 573 * Parse extern (linkage) | |
| 574 * The parser is on the 'extern' token. | |
| 575 */ | |
| 576 | |
| 577 enum LINK Parser::parseLinkage() | |
| 578 { | |
| 579 enum LINK link = LINKdefault; | |
| 580 nextToken(); | |
| 581 assert(token.value == TOKlparen); | |
| 582 nextToken(); | |
| 583 if (token.value == TOKidentifier) | |
| 584 { Identifier *id = token.ident; | |
| 585 | |
| 586 nextToken(); | |
| 587 if (id == Id::Windows) | |
| 588 link = LINKwindows; | |
| 589 else if (id == Id::Pascal) | |
| 590 link = LINKpascal; | |
| 591 else if (id == Id::D) | |
| 592 link = LINKd; | |
| 593 else if (id == Id::C) | |
| 594 { | |
| 595 link = LINKc; | |
| 596 if (token.value == TOKplusplus) | |
| 597 { link = LINKcpp; | |
| 598 nextToken(); | |
| 599 } | |
| 600 } | |
| 601 else if (id == Id::System) | |
| 602 { | |
|
721
51797efb6975
Make extern(System) configure the calling convention on LDC runtime, not when building LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
603 // LDC we configure target at runtime |
|
51797efb6975
Make extern(System) configure the calling convention on LDC runtime, not when building LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
604 if (global.params.os == OSWindows) |
|
51797efb6975
Make extern(System) configure the calling convention on LDC runtime, not when building LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
605 link = LINKwindows; |
|
51797efb6975
Make extern(System) configure the calling convention on LDC runtime, not when building LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
606 else |
|
51797efb6975
Make extern(System) configure the calling convention on LDC runtime, not when building LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
607 link = LINKc; |
| 336 | 608 } |
| 609 else | |
| 610 { | |
| 611 error("valid linkage identifiers are D, C, C++, Pascal, Windows, System"); | |
| 612 link = LINKd; | |
| 613 } | |
| 614 } | |
| 615 else | |
| 616 { | |
| 617 link = LINKd; // default | |
| 618 } | |
| 619 check(TOKrparen); | |
| 620 return link; | |
| 621 } | |
| 622 | |
| 623 /************************************** | |
| 624 * Parse a debug conditional | |
| 625 */ | |
| 626 | |
| 627 Condition *Parser::parseDebugCondition() | |
| 628 { | |
| 629 Condition *c; | |
| 630 | |
| 631 if (token.value == TOKlparen) | |
| 632 { | |
| 633 nextToken(); | |
| 634 unsigned level = 1; | |
| 635 Identifier *id = NULL; | |
| 636 | |
| 637 if (token.value == TOKidentifier) | |
| 638 id = token.ident; | |
| 639 else if (token.value == TOKint32v) | |
| 640 level = (unsigned)token.uns64value; | |
| 641 else | |
| 642 error("identifier or integer expected, not %s", token.toChars()); | |
| 643 nextToken(); | |
| 644 check(TOKrparen); | |
| 645 c = new DebugCondition(mod, level, id); | |
| 646 } | |
| 647 else | |
| 648 c = new DebugCondition(mod, 1, NULL); | |
| 649 return c; | |
| 650 | |
| 651 } | |
| 652 | |
| 653 /************************************** | |
| 654 * Parse a version conditional | |
| 655 */ | |
| 656 | |
| 657 Condition *Parser::parseVersionCondition() | |
| 658 { | |
| 659 Condition *c; | |
| 660 unsigned level = 1; | |
| 661 Identifier *id = NULL; | |
| 662 | |
| 663 if (token.value == TOKlparen) | |
| 664 { | |
| 665 nextToken(); | |
| 666 if (token.value == TOKidentifier) | |
| 667 id = token.ident; | |
| 668 else if (token.value == TOKint32v) | |
| 669 level = (unsigned)token.uns64value; | |
| 670 #if DMDV2 | |
| 671 /* Allow: | |
| 672 * version (unittest) | |
| 673 * even though unittest is a keyword | |
| 674 */ | |
| 675 else if (token.value == TOKunittest) | |
| 676 id = Lexer::idPool(Token::toChars(TOKunittest)); | |
| 677 #endif | |
| 678 else | |
| 679 error("identifier or integer expected, not %s", token.toChars()); | |
| 680 nextToken(); | |
| 681 check(TOKrparen); | |
| 682 | |
| 683 } | |
| 684 else | |
| 685 error("(condition) expected following version"); | |
| 686 c = new VersionCondition(mod, level, id); | |
| 687 return c; | |
| 688 | |
| 689 } | |
| 690 | |
| 691 /*********************************************** | |
| 692 * static if (expression) | |
| 693 * body | |
| 694 * else | |
| 695 * body | |
| 696 */ | |
| 697 | |
| 698 Condition *Parser::parseStaticIfCondition() | |
| 699 { Expression *exp; | |
| 700 Condition *condition; | |
| 701 Array *aif; | |
| 702 Array *aelse; | |
| 703 Loc loc = this->loc; | |
| 704 | |
| 705 nextToken(); | |
| 706 if (token.value == TOKlparen) | |
| 707 { | |
| 708 nextToken(); | |
| 709 exp = parseAssignExp(); | |
| 710 check(TOKrparen); | |
| 711 } | |
| 712 else | |
| 713 { error("(expression) expected following static if"); | |
| 714 exp = NULL; | |
| 715 } | |
| 716 condition = new StaticIfCondition(loc, exp); | |
| 717 return condition; | |
| 718 } | |
| 719 | |
| 720 | |
| 721 /***************************************** | |
| 722 * Parse a constructor definition: | |
| 723 * this(arguments) { body } | |
| 724 * Current token is 'this'. | |
| 725 */ | |
| 726 | |
| 727 CtorDeclaration *Parser::parseCtor() | |
| 728 { | |
| 729 CtorDeclaration *f; | |
| 730 Arguments *arguments; | |
| 731 int varargs; | |
| 732 Loc loc = this->loc; | |
| 733 | |
| 734 nextToken(); | |
| 735 arguments = parseParameters(&varargs); | |
| 736 f = new CtorDeclaration(loc, 0, arguments, varargs); | |
| 737 parseContracts(f); | |
| 738 return f; | |
| 739 } | |
| 740 | |
| 741 /***************************************** | |
| 742 * Parse a destructor definition: | |
| 743 * ~this() { body } | |
| 744 * Current token is '~'. | |
| 745 */ | |
| 746 | |
| 747 DtorDeclaration *Parser::parseDtor() | |
| 748 { | |
| 749 DtorDeclaration *f; | |
| 750 Loc loc = this->loc; | |
| 751 | |
| 752 nextToken(); | |
| 753 check(TOKthis); | |
| 754 check(TOKlparen); | |
| 755 check(TOKrparen); | |
| 756 | |
| 757 f = new DtorDeclaration(loc, 0); | |
| 758 parseContracts(f); | |
| 759 return f; | |
| 760 } | |
| 761 | |
| 762 /***************************************** | |
| 763 * Parse a static constructor definition: | |
| 764 * static this() { body } | |
| 765 * Current token is 'this'. | |
| 766 */ | |
| 767 | |
| 768 StaticCtorDeclaration *Parser::parseStaticCtor() | |
| 769 { | |
| 770 StaticCtorDeclaration *f; | |
| 771 Loc loc = this->loc; | |
| 772 | |
| 773 nextToken(); | |
| 774 check(TOKlparen); | |
| 775 check(TOKrparen); | |
| 776 | |
| 777 f = new StaticCtorDeclaration(loc, 0); | |
| 778 parseContracts(f); | |
| 779 return f; | |
| 780 } | |
| 781 | |
| 782 /***************************************** | |
| 783 * Parse a static destructor definition: | |
| 784 * static ~this() { body } | |
| 785 * Current token is '~'. | |
| 786 */ | |
| 787 | |
| 788 StaticDtorDeclaration *Parser::parseStaticDtor() | |
| 789 { | |
| 790 StaticDtorDeclaration *f; | |
| 791 Loc loc = this->loc; | |
| 792 | |
| 793 nextToken(); | |
| 794 check(TOKthis); | |
| 795 check(TOKlparen); | |
| 796 check(TOKrparen); | |
| 797 | |
| 798 f = new StaticDtorDeclaration(loc, 0); | |
| 799 parseContracts(f); | |
| 800 return f; | |
| 801 } | |
| 802 | |
| 803 /***************************************** | |
| 804 * Parse an invariant definition: | |
| 805 * invariant { body } | |
| 806 * Current token is 'invariant'. | |
| 807 */ | |
| 808 | |
| 809 InvariantDeclaration *Parser::parseInvariant() | |
| 810 { | |
| 811 InvariantDeclaration *f; | |
| 812 Loc loc = this->loc; | |
| 813 | |
| 814 nextToken(); | |
| 815 if (token.value == TOKlparen) // optional () | |
| 816 { | |
| 817 nextToken(); | |
| 818 check(TOKrparen); | |
| 819 } | |
| 820 | |
| 821 f = new InvariantDeclaration(loc, 0); | |
| 822 f->fbody = parseStatement(PScurly); | |
| 823 return f; | |
| 824 } | |
| 825 | |
| 826 /***************************************** | |
| 827 * Parse a unittest definition: | |
| 828 * unittest { body } | |
| 829 * Current token is 'unittest'. | |
| 830 */ | |
| 831 | |
| 832 UnitTestDeclaration *Parser::parseUnitTest() | |
| 833 { | |
| 834 UnitTestDeclaration *f; | |
| 835 Statement *body; | |
| 836 Loc loc = this->loc; | |
| 837 | |
| 838 nextToken(); | |
| 839 | |
| 840 body = parseStatement(PScurly); | |
| 841 | |
| 842 f = new UnitTestDeclaration(loc, this->loc); | |
| 843 f->fbody = body; | |
| 844 return f; | |
| 845 } | |
| 846 | |
| 847 /***************************************** | |
| 848 * Parse a new definition: | |
| 849 * new(arguments) { body } | |
| 850 * Current token is 'new'. | |
| 851 */ | |
| 852 | |
| 853 NewDeclaration *Parser::parseNew() | |
| 854 { | |
| 855 NewDeclaration *f; | |
| 856 Arguments *arguments; | |
| 857 int varargs; | |
| 858 Loc loc = this->loc; | |
| 859 | |
| 860 nextToken(); | |
| 861 arguments = parseParameters(&varargs); | |
| 862 f = new NewDeclaration(loc, 0, arguments, varargs); | |
| 863 parseContracts(f); | |
| 864 return f; | |
| 865 } | |
| 866 | |
| 867 /***************************************** | |
| 868 * Parse a delete definition: | |
| 869 * delete(arguments) { body } | |
| 870 * Current token is 'delete'. | |
| 871 */ | |
| 872 | |
| 873 DeleteDeclaration *Parser::parseDelete() | |
| 874 { | |
| 875 DeleteDeclaration *f; | |
| 876 Arguments *arguments; | |
| 877 int varargs; | |
| 878 Loc loc = this->loc; | |
| 879 | |
| 880 nextToken(); | |
| 881 arguments = parseParameters(&varargs); | |
| 882 if (varargs) | |
| 883 error("... not allowed in delete function parameter list"); | |
| 884 f = new DeleteDeclaration(loc, 0, arguments); | |
| 885 parseContracts(f); | |
| 886 return f; | |
| 887 } | |
| 888 | |
| 889 /********************************************** | |
| 890 * Parse parameter list. | |
| 891 */ | |
| 892 | |
| 893 Arguments *Parser::parseParameters(int *pvarargs) | |
| 894 { | |
| 895 Arguments *arguments = new Arguments(); | |
| 896 int varargs = 0; | |
| 897 int hasdefault = 0; | |
| 898 | |
| 899 check(TOKlparen); | |
| 900 while (1) | |
| 901 { Type *tb; | |
| 902 Identifier *ai = NULL; | |
| 903 Type *at; | |
| 904 Argument *a; | |
| 905 unsigned storageClass; | |
| 906 Expression *ae; | |
| 907 | |
| 908 storageClass = STCin; // parameter is "in" by default | |
| 909 switch (token.value) | |
| 910 { | |
| 911 case TOKrparen: | |
| 912 break; | |
| 913 | |
| 914 case TOKdotdotdot: | |
| 915 varargs = 1; | |
| 916 nextToken(); | |
| 917 break; | |
| 918 | |
| 919 case TOKin: | |
| 920 storageClass = STCin; | |
| 921 nextToken(); | |
| 922 goto L1; | |
| 923 | |
| 924 case TOKout: | |
| 925 storageClass = STCout; | |
| 926 nextToken(); | |
| 927 goto L1; | |
| 928 | |
| 929 case TOKinout: | |
| 930 case TOKref: | |
| 931 storageClass = STCref; | |
| 932 nextToken(); | |
| 933 goto L1; | |
| 934 | |
| 935 case TOKlazy: | |
| 936 storageClass = STClazy; | |
| 937 nextToken(); | |
| 938 goto L1; | |
| 939 | |
| 940 default: | |
| 941 L1: | |
| 942 tb = parseBasicType(); | |
| 943 at = parseDeclarator(tb, &ai); | |
| 944 ae = NULL; | |
| 945 if (token.value == TOKassign) // = defaultArg | |
| 946 { nextToken(); | |
| 947 ae = parseAssignExp(); | |
| 948 hasdefault = 1; | |
| 949 } | |
| 950 else | |
| 951 { if (hasdefault) | |
| 952 error("default argument expected for %s", | |
| 953 ai ? ai->toChars() : at->toChars()); | |
| 954 } | |
| 955 if (token.value == TOKdotdotdot) | |
| 956 { /* This is: | |
| 957 * at ai ... | |
| 958 */ | |
| 959 | |
| 960 if (storageClass & (STCout | STCref)) | |
| 961 error("variadic argument cannot be out or ref"); | |
| 962 varargs = 2; | |
| 963 a = new Argument(storageClass, at, ai, ae); | |
| 964 arguments->push(a); | |
| 965 nextToken(); | |
| 966 break; | |
| 967 } | |
| 968 a = new Argument(storageClass, at, ai, ae); | |
| 969 arguments->push(a); | |
| 970 if (token.value == TOKcomma) | |
| 971 { nextToken(); | |
| 972 continue; | |
| 973 } | |
| 974 break; | |
| 975 } | |
| 976 break; | |
| 977 } | |
| 978 check(TOKrparen); | |
| 979 *pvarargs = varargs; | |
| 980 return arguments; | |
| 981 } | |
| 982 | |
| 983 | |
| 984 /************************************* | |
| 985 */ | |
| 986 | |
| 987 EnumDeclaration *Parser::parseEnum() | |
| 988 { EnumDeclaration *e; | |
| 989 Identifier *id; | |
| 990 Type *t; | |
| 991 Loc loc = this->loc; | |
| 992 | |
| 993 //printf("Parser::parseEnum()\n"); | |
| 994 nextToken(); | |
| 995 if (token.value == TOKidentifier) | |
| 996 { id = token.ident; | |
| 997 nextToken(); | |
| 998 } | |
| 999 else | |
| 1000 id = NULL; | |
| 1001 | |
| 1002 if (token.value == TOKcolon) | |
| 1003 { | |
| 1004 nextToken(); | |
| 1005 t = parseBasicType(); | |
| 1006 } | |
| 1007 else | |
| 1008 t = NULL; | |
| 1009 | |
| 1010 e = new EnumDeclaration(loc, id, t); | |
| 1011 if (token.value == TOKsemicolon && id) | |
| 1012 nextToken(); | |
| 1013 else if (token.value == TOKlcurly) | |
| 1014 { | |
| 1015 //printf("enum definition\n"); | |
| 1016 e->members = new Array(); | |
| 1017 nextToken(); | |
| 1018 unsigned char *comment = token.blockComment; | |
| 1019 while (token.value != TOKrcurly) | |
| 1020 { | |
| 1021 if (token.value == TOKidentifier) | |
| 1022 { EnumMember *em; | |
| 1023 Expression *value; | |
| 1024 Identifier *ident; | |
| 1025 | |
| 1026 loc = this->loc; | |
| 1027 ident = token.ident; | |
| 1028 value = NULL; | |
| 1029 nextToken(); | |
| 1030 if (token.value == TOKassign) | |
| 1031 { | |
| 1032 nextToken(); | |
| 1033 value = parseAssignExp(); | |
| 1034 } | |
| 1035 em = new EnumMember(loc, ident, value); | |
| 1036 e->members->push(em); | |
| 1037 if (token.value == TOKrcurly) | |
| 1038 ; | |
| 1039 else | |
| 1040 { addComment(em, comment); | |
| 1041 comment = NULL; | |
| 1042 check(TOKcomma); | |
| 1043 } | |
| 1044 addComment(em, comment); | |
| 1045 comment = token.blockComment; | |
| 1046 } | |
| 1047 else | |
| 1048 { error("enum member expected"); | |
| 1049 nextToken(); | |
| 1050 } | |
| 1051 } | |
| 1052 nextToken(); | |
| 1053 } | |
| 1054 else | |
| 1055 error("enum declaration is invalid"); | |
| 1056 | |
| 1057 //printf("-parseEnum() %s\n", e->toChars()); | |
| 1058 return e; | |
| 1059 } | |
| 1060 | |
| 1061 Dsymbol *Parser::parseAggregate() | |
| 1062 { AggregateDeclaration *a = NULL; | |
| 1063 int anon = 0; | |
| 1064 enum TOK tok; | |
| 1065 Identifier *id; | |
| 1066 TemplateParameters *tpl = NULL; | |
| 1067 | |
| 1068 //printf("Parser::parseAggregate()\n"); | |
| 1069 tok = token.value; | |
| 1070 nextToken(); | |
| 1071 if (token.value != TOKidentifier) | |
| 1072 { id = NULL; | |
| 1073 } | |
| 1074 else | |
| 1075 { id = token.ident; | |
| 1076 nextToken(); | |
| 1077 | |
| 1078 if (token.value == TOKlparen) | |
| 1079 { // Class template declaration. | |
| 1080 | |
| 1081 // Gather template parameter list | |
| 1082 tpl = parseTemplateParameterList(); | |
| 1083 } | |
| 1084 } | |
| 1085 | |
| 1086 Loc loc = this->loc; | |
| 1087 switch (tok) | |
| 1088 { case TOKclass: | |
| 1089 case TOKinterface: | |
| 1090 { | |
| 1091 if (!id) | |
| 1092 error("anonymous classes not allowed"); | |
| 1093 | |
| 1094 // Collect base class(es) | |
| 1095 BaseClasses *baseclasses = NULL; | |
| 1096 if (token.value == TOKcolon) | |
| 1097 { | |
| 1098 nextToken(); | |
| 1099 baseclasses = parseBaseClasses(); | |
| 1100 | |
| 1101 if (token.value != TOKlcurly) | |
| 1102 error("members expected"); | |
| 1103 } | |
| 1104 | |
| 1105 if (tok == TOKclass) | |
| 1106 a = new ClassDeclaration(loc, id, baseclasses); | |
| 1107 else | |
| 1108 a = new InterfaceDeclaration(loc, id, baseclasses); | |
| 1109 break; | |
| 1110 } | |
| 1111 | |
| 1112 case TOKstruct: | |
| 1113 if (id) | |
| 1114 a = new StructDeclaration(loc, id); | |
| 1115 else | |
| 1116 anon = 1; | |
| 1117 break; | |
| 1118 | |
| 1119 case TOKunion: | |
| 1120 if (id) | |
| 1121 a = new UnionDeclaration(loc, id); | |
| 1122 else | |
| 1123 anon = 2; | |
| 1124 break; | |
| 1125 | |
| 1126 default: | |
| 1127 assert(0); | |
| 1128 break; | |
| 1129 } | |
| 1130 if (a && token.value == TOKsemicolon) | |
| 1131 { nextToken(); | |
| 1132 } | |
| 1133 else if (token.value == TOKlcurly) | |
| 1134 { | |
| 1135 //printf("aggregate definition\n"); | |
| 1136 nextToken(); | |
| 1137 Array *decl = parseDeclDefs(0); | |
| 1138 if (token.value != TOKrcurly) | |
| 1139 error("} expected following member declarations in aggregate"); | |
| 1140 nextToken(); | |
| 1141 if (anon) | |
| 1142 { | |
| 1143 /* Anonymous structs/unions are more like attributes. | |
| 1144 */ | |
| 1145 return new AnonDeclaration(loc, anon - 1, decl); | |
| 1146 } | |
| 1147 else | |
| 1148 a->members = decl; | |
| 1149 } | |
| 1150 else | |
| 1151 { | |
| 1152 error("{ } expected following aggregate declaration"); | |
| 1153 a = new StructDeclaration(loc, NULL); | |
| 1154 } | |
| 1155 | |
| 1156 if (tpl) | |
| 1157 { Array *decldefs; | |
| 1158 TemplateDeclaration *tempdecl; | |
| 1159 | |
| 1160 // Wrap a template around the aggregate declaration | |
| 1161 decldefs = new Array(); | |
| 1162 decldefs->push(a); | |
| 1163 tempdecl = new TemplateDeclaration(loc, id, tpl, decldefs); | |
| 1164 return tempdecl; | |
| 1165 } | |
| 1166 | |
| 1167 return a; | |
| 1168 } | |
| 1169 | |
| 1170 /******************************************* | |
| 1171 */ | |
| 1172 | |
| 1173 BaseClasses *Parser::parseBaseClasses() | |
| 1174 { | |
| 1175 enum PROT protection = PROTpublic; | |
| 1176 BaseClasses *baseclasses = new BaseClasses(); | |
| 1177 | |
| 1178 for (; 1; nextToken()) | |
| 1179 { | |
| 1180 switch (token.value) | |
| 1181 { | |
| 1182 case TOKidentifier: | |
| 1183 break; | |
| 1184 case TOKprivate: | |
| 1185 protection = PROTprivate; | |
| 1186 continue; | |
| 1187 case TOKpackage: | |
| 1188 protection = PROTpackage; | |
| 1189 continue; | |
| 1190 case TOKprotected: | |
| 1191 protection = PROTprotected; | |
| 1192 continue; | |
| 1193 case TOKpublic: | |
| 1194 protection = PROTpublic; | |
| 1195 continue; | |
| 1196 default: | |
| 1197 error("base classes expected instead of %s", token.toChars()); | |
| 1198 return NULL; | |
| 1199 } | |
| 1200 BaseClass *b = new BaseClass(parseBasicType(), protection); | |
| 1201 baseclasses->push(b); | |
| 1202 if (token.value != TOKcomma) | |
| 1203 break; | |
| 1204 protection = PROTpublic; | |
| 1205 } | |
| 1206 return baseclasses; | |
| 1207 } | |
| 1208 | |
| 1209 /************************************** | |
| 1210 * Parse constraint. | |
| 1211 * Constraint is of the form: | |
| 1212 * if ( ConstraintExpression ) | |
| 1213 */ | |
| 1214 | |
| 1215 #if DMDV2 | |
| 1216 Expression *Parser::parseConstraint() | |
| 1217 { Expression *e = NULL; | |
| 1218 | |
| 1219 if (token.value == TOKif) | |
| 1220 { | |
| 1221 nextToken(); // skip over 'if' | |
| 1222 check(TOKlparen); | |
| 1223 e = parseExpression(); | |
| 1224 check(TOKrparen); | |
| 1225 } | |
| 1226 return e; | |
| 1227 } | |
| 1228 #endif | |
| 1229 | |
| 1230 /************************************** | |
| 1231 * Parse a TemplateDeclaration. | |
| 1232 */ | |
| 1233 | |
| 1234 TemplateDeclaration *Parser::parseTemplateDeclaration() | |
| 1235 { | |
| 1236 TemplateDeclaration *tempdecl; | |
| 1237 Identifier *id; | |
| 1238 TemplateParameters *tpl; | |
| 1239 Array *decldefs; | |
| 1240 Loc loc = this->loc; | |
| 1241 | |
| 1242 nextToken(); | |
| 1243 if (token.value != TOKidentifier) | |
| 1244 { error("TemplateIdentifier expected following template"); | |
| 1245 goto Lerr; | |
| 1246 } | |
| 1247 id = token.ident; | |
| 1248 nextToken(); | |
| 1249 tpl = parseTemplateParameterList(); | |
| 1250 if (!tpl) | |
| 1251 goto Lerr; | |
| 1252 | |
| 1253 if (token.value != TOKlcurly) | |
| 1254 { error("members of template declaration expected"); | |
| 1255 goto Lerr; | |
| 1256 } | |
| 1257 else | |
| 1258 { | |
| 1259 nextToken(); | |
| 1260 decldefs = parseDeclDefs(0); | |
| 1261 if (token.value != TOKrcurly) | |
| 1262 { error("template member expected"); | |
| 1263 goto Lerr; | |
| 1264 } | |
| 1265 nextToken(); | |
| 1266 } | |
| 1267 | |
| 1268 tempdecl = new TemplateDeclaration(loc, id, tpl, decldefs); | |
| 1269 return tempdecl; | |
| 1270 | |
| 1271 Lerr: | |
| 1272 return NULL; | |
| 1273 } | |
| 1274 | |
| 1275 /****************************************** | |
| 1276 * Parse template parameter list. | |
| 1277 */ | |
| 1278 | |
| 1279 TemplateParameters *Parser::parseTemplateParameterList() | |
| 1280 { | |
| 1281 TemplateParameters *tpl = new TemplateParameters(); | |
| 1282 | |
| 1283 if (token.value != TOKlparen) | |
| 1284 { error("parenthesized TemplateParameterList expected following TemplateIdentifier"); | |
| 1285 goto Lerr; | |
| 1286 } | |
| 1287 nextToken(); | |
| 1288 | |
| 1289 // Get array of TemplateParameters | |
| 1290 if (token.value != TOKrparen) | |
| 1291 { int isvariadic = 0; | |
| 1292 | |
| 1293 while (1) | |
| 1294 { TemplateParameter *tp; | |
| 1295 Identifier *tp_ident = NULL; | |
| 1296 Type *tp_spectype = NULL; | |
| 1297 Type *tp_valtype = NULL; | |
| 1298 Type *tp_defaulttype = NULL; | |
| 1299 Expression *tp_specvalue = NULL; | |
| 1300 Expression *tp_defaultvalue = NULL; | |
| 1301 Token *t; | |
| 1302 | |
| 1303 // Get TemplateParameter | |
| 1304 | |
| 1305 // First, look ahead to see if it is a TypeParameter or a ValueParameter | |
| 1306 t = peek(&token); | |
| 1307 if (token.value == TOKalias) | |
| 1308 { // AliasParameter | |
| 1309 nextToken(); | |
| 1310 if (token.value != TOKidentifier) | |
| 1311 { error("Identifier expected for template parameter"); | |
| 1312 goto Lerr; | |
| 1313 } | |
| 1314 tp_ident = token.ident; | |
| 1315 nextToken(); | |
| 1316 if (token.value == TOKcolon) // : Type | |
| 1317 { | |
| 1318 nextToken(); | |
| 1319 tp_spectype = parseBasicType(); | |
| 1320 tp_spectype = parseDeclarator(tp_spectype, NULL); | |
| 1321 } | |
| 1322 if (token.value == TOKassign) // = Type | |
| 1323 { | |
| 1324 nextToken(); | |
| 1325 tp_defaulttype = parseBasicType(); | |
| 1326 tp_defaulttype = parseDeclarator(tp_defaulttype, NULL); | |
| 1327 } | |
| 1328 tp = new TemplateAliasParameter(loc, tp_ident, tp_spectype, tp_defaulttype); | |
| 1329 } | |
| 1330 else if (t->value == TOKcolon || t->value == TOKassign || | |
| 1331 t->value == TOKcomma || t->value == TOKrparen) | |
| 1332 { // TypeParameter | |
| 1333 if (token.value != TOKidentifier) | |
| 1334 { error("Identifier expected for template parameter"); | |
| 1335 goto Lerr; | |
| 1336 } | |
| 1337 tp_ident = token.ident; | |
| 1338 nextToken(); | |
| 1339 if (token.value == TOKcolon) // : Type | |
| 1340 { | |
| 1341 nextToken(); | |
| 1342 tp_spectype = parseBasicType(); | |
| 1343 tp_spectype = parseDeclarator(tp_spectype, NULL); | |
| 1344 } | |
| 1345 if (token.value == TOKassign) // = Type | |
| 1346 { | |
| 1347 nextToken(); | |
| 1348 tp_defaulttype = parseBasicType(); | |
| 1349 tp_defaulttype = parseDeclarator(tp_defaulttype, NULL); | |
| 1350 } | |
| 1351 tp = new TemplateTypeParameter(loc, tp_ident, tp_spectype, tp_defaulttype); | |
| 1352 } | |
| 1353 else if (token.value == TOKidentifier && t->value == TOKdotdotdot) | |
| 1354 { // ident... | |
| 1355 if (isvariadic) | |
| 1356 error("variadic template parameter must be last"); | |
| 1357 isvariadic = 1; | |
| 1358 tp_ident = token.ident; | |
| 1359 nextToken(); | |
| 1360 nextToken(); | |
| 1361 tp = new TemplateTupleParameter(loc, tp_ident); | |
| 1362 } | |
| 1363 #if DMDV2 | |
| 1364 else if (token.value == TOKthis) | |
| 1365 { // ThisParameter | |
| 1366 nextToken(); | |
| 1367 if (token.value != TOKidentifier) | |
| 1368 { error("identifier expected for template this parameter"); | |
| 1369 goto Lerr; | |
| 1370 } | |
| 1371 tp_ident = token.ident; | |
| 1372 nextToken(); | |
| 1373 if (token.value == TOKcolon) // : Type | |
| 1374 { | |
| 1375 nextToken(); | |
| 1376 tp_spectype = parseType(); | |
| 1377 } | |
| 1378 if (token.value == TOKassign) // = Type | |
| 1379 { | |
| 1380 nextToken(); | |
| 1381 tp_defaulttype = parseType(); | |
| 1382 } | |
| 1383 tp = new TemplateThisParameter(loc, tp_ident, tp_spectype, tp_defaulttype); | |
| 1384 } | |
| 1385 #endif | |
| 1386 else | |
| 1387 { // ValueParameter | |
| 1388 tp_valtype = parseBasicType(); | |
| 1389 tp_valtype = parseDeclarator(tp_valtype, &tp_ident); | |
| 1390 if (!tp_ident) | |
| 1391 { | |
| 1392 error("identifier expected for template value parameter"); | |
| 1393 tp_ident = new Identifier("error", TOKidentifier); | |
| 1394 } | |
| 1395 if (token.value == TOKcolon) // : CondExpression | |
| 1396 { | |
| 1397 nextToken(); | |
| 1398 tp_specvalue = parseCondExp(); | |
| 1399 } | |
| 1400 if (token.value == TOKassign) // = CondExpression | |
| 1401 { | |
| 1402 nextToken(); | |
| 1403 tp_defaultvalue = parseCondExp(); | |
| 1404 } | |
| 1405 tp = new TemplateValueParameter(loc, tp_ident, tp_valtype, tp_specvalue, tp_defaultvalue); | |
| 1406 } | |
| 1407 tpl->push(tp); | |
| 1408 if (token.value != TOKcomma) | |
| 1409 break; | |
| 1410 nextToken(); | |
| 1411 } | |
| 1412 } | |
| 1413 check(TOKrparen); | |
| 1414 Lerr: | |
| 1415 return tpl; | |
| 1416 } | |
| 1417 | |
| 1418 /****************************************** | |
| 1419 * Parse template mixin. | |
| 1420 * mixin Foo; | |
| 1421 * mixin Foo!(args); | |
| 1422 * mixin a.b.c!(args).Foo!(args); | |
| 1423 * mixin Foo!(args) identifier; | |
| 1424 * mixin typeof(expr).identifier!(args); | |
| 1425 */ | |
| 1426 | |
| 1427 Dsymbol *Parser::parseMixin() | |
| 1428 { | |
| 1429 TemplateMixin *tm; | |
| 1430 Identifier *id; | |
| 1431 Type *tqual; | |
| 1432 Objects *tiargs; | |
| 1433 Array *idents; | |
| 1434 | |
| 1435 //printf("parseMixin()\n"); | |
| 1436 nextToken(); | |
| 1437 tqual = NULL; | |
| 1438 if (token.value == TOKdot) | |
| 1439 { | |
| 1440 id = Id::empty; | |
| 1441 } | |
| 1442 else | |
| 1443 { | |
| 1444 if (token.value == TOKtypeof) | |
| 1445 { Expression *exp; | |
| 1446 | |
| 1447 nextToken(); | |
| 1448 check(TOKlparen); | |
| 1449 exp = parseExpression(); | |
| 1450 check(TOKrparen); | |
| 1451 tqual = new TypeTypeof(loc, exp); | |
| 1452 check(TOKdot); | |
| 1453 } | |
| 1454 if (token.value != TOKidentifier) | |
| 1455 { | |
| 1456 error("identifier expected, not %s", token.toChars()); | |
| 1457 id = Id::empty; | |
| 1458 } | |
| 1459 else | |
| 1460 id = token.ident; | |
| 1461 nextToken(); | |
| 1462 } | |
| 1463 | |
| 1464 idents = new Array(); | |
| 1465 while (1) | |
| 1466 { | |
| 1467 tiargs = NULL; | |
| 1468 if (token.value == TOKnot) | |
| 1469 { | |
| 1470 nextToken(); | |
| 1471 tiargs = parseTemplateArgumentList(); | |
| 1472 } | |
| 1473 | |
| 1474 if (token.value != TOKdot) | |
| 1475 break; | |
| 1476 | |
| 1477 if (tiargs) | |
| 1478 { TemplateInstance *tempinst = new TemplateInstance(loc, id); | |
| 1479 tempinst->tiargs = tiargs; | |
| 1480 id = (Identifier *)tempinst; | |
| 1481 tiargs = NULL; | |
| 1482 } | |
| 1483 idents->push(id); | |
| 1484 | |
| 1485 nextToken(); | |
| 1486 if (token.value != TOKidentifier) | |
| 1487 { error("identifier expected following '.' instead of '%s'", token.toChars()); | |
| 1488 break; | |
| 1489 } | |
| 1490 id = token.ident; | |
| 1491 nextToken(); | |
| 1492 } | |
| 1493 idents->push(id); | |
| 1494 | |
| 1495 if (token.value == TOKidentifier) | |
| 1496 { | |
| 1497 id = token.ident; | |
| 1498 nextToken(); | |
| 1499 } | |
| 1500 else | |
| 1501 id = NULL; | |
| 1502 | |
| 1503 tm = new TemplateMixin(loc, id, tqual, idents, tiargs); | |
| 1504 if (token.value != TOKsemicolon) | |
| 1505 error("';' expected after mixin"); | |
| 1506 nextToken(); | |
| 1507 | |
| 1508 return tm; | |
| 1509 } | |
| 1510 | |
| 1511 /****************************************** | |
| 1512 * Parse template argument list. | |
| 1513 * Input: | |
| 1514 * current token is opening '(' | |
| 1515 * Output: | |
| 1516 * current token is one after closing ')' | |
| 1517 */ | |
| 1518 | |
| 1519 Objects *Parser::parseTemplateArgumentList() | |
| 1520 { | |
| 1521 //printf("Parser::parseTemplateArgumentList()\n"); | |
| 1522 Objects *tiargs = new Objects(); | |
| 1523 if (token.value != TOKlparen) | |
| 1524 { error("!(TemplateArgumentList) expected following TemplateIdentifier"); | |
| 1525 return tiargs; | |
| 1526 } | |
| 1527 nextToken(); | |
| 1528 | |
| 1529 // Get TemplateArgumentList | |
| 1530 if (token.value != TOKrparen) | |
| 1531 { | |
| 1532 while (1) | |
| 1533 { | |
| 1534 // See if it is an Expression or a Type | |
| 1535 if (isDeclaration(&token, 0, TOKreserved, NULL)) | |
| 1536 { // Type | |
| 1537 Type *ta; | |
| 1538 | |
| 1539 // Get TemplateArgument | |
| 1540 ta = parseBasicType(); | |
| 1541 ta = parseDeclarator(ta, NULL); | |
| 1542 tiargs->push(ta); | |
| 1543 } | |
| 1544 else | |
| 1545 { // Expression | |
| 1546 Expression *ea; | |
| 1547 | |
| 1548 ea = parseAssignExp(); | |
| 1549 tiargs->push(ea); | |
| 1550 } | |
| 1551 if (token.value != TOKcomma) | |
| 1552 break; | |
| 1553 nextToken(); | |
| 1554 } | |
| 1555 } | |
| 1556 check(TOKrparen, "template argument list"); | |
| 1557 return tiargs; | |
| 1558 } | |
| 1559 | |
| 1560 Import *Parser::parseImport(Array *decldefs, int isstatic) | |
| 1561 { Import *s; | |
| 1562 Identifier *id; | |
| 1563 Identifier *aliasid = NULL; | |
| 1564 Array *a; | |
| 1565 Loc loc; | |
| 1566 | |
| 1567 //printf("Parser::parseImport()\n"); | |
| 1568 do | |
| 1569 { | |
| 1570 L1: | |
| 1571 nextToken(); | |
| 1572 if (token.value != TOKidentifier) | |
| 1573 { error("Identifier expected following import"); | |
| 1574 break; | |
| 1575 } | |
| 1576 | |
| 1577 loc = this->loc; | |
| 1578 a = NULL; | |
| 1579 id = token.ident; | |
| 1580 nextToken(); | |
| 1581 if (!aliasid && token.value == TOKassign) | |
| 1582 { | |
| 1583 aliasid = id; | |
| 1584 goto L1; | |
| 1585 } | |
| 1586 while (token.value == TOKdot) | |
| 1587 { | |
| 1588 if (!a) | |
| 1589 a = new Array(); | |
| 1590 a->push(id); | |
| 1591 nextToken(); | |
| 1592 if (token.value != TOKidentifier) | |
| 1593 { error("Identifier expected following package"); | |
| 1594 break; | |
| 1595 } | |
| 1596 id = token.ident; | |
| 1597 nextToken(); | |
| 1598 } | |
| 1599 | |
| 1600 s = new Import(loc, a, token.ident, aliasid, isstatic); | |
| 1601 decldefs->push(s); | |
| 1602 | |
| 1603 /* Look for | |
| 1604 * : alias=name, alias=name; | |
| 1605 * syntax. | |
| 1606 */ | |
| 1607 if (token.value == TOKcolon) | |
| 1608 { | |
| 1609 do | |
| 1610 { Identifier *name; | |
| 1611 Identifier *alias; | |
| 1612 | |
| 1613 nextToken(); | |
| 1614 if (token.value != TOKidentifier) | |
| 1615 { error("Identifier expected following :"); | |
| 1616 break; | |
| 1617 } | |
| 1618 alias = token.ident; | |
| 1619 nextToken(); | |
| 1620 if (token.value == TOKassign) | |
| 1621 { | |
| 1622 nextToken(); | |
| 1623 if (token.value != TOKidentifier) | |
| 1624 { error("Identifier expected following %s=", alias->toChars()); | |
| 1625 break; | |
| 1626 } | |
| 1627 name = token.ident; | |
| 1628 nextToken(); | |
| 1629 } | |
| 1630 else | |
| 1631 { name = alias; | |
| 1632 alias = NULL; | |
| 1633 } | |
| 1634 s->addAlias(name, alias); | |
| 1635 } while (token.value == TOKcomma); | |
| 1636 break; // no comma-separated imports of this form | |
| 1637 } | |
| 1638 | |
| 1639 aliasid = NULL; | |
| 1640 } while (token.value == TOKcomma); | |
| 1641 | |
| 1642 if (token.value == TOKsemicolon) | |
| 1643 nextToken(); | |
| 1644 else | |
| 1645 { | |
| 1646 error("';' expected"); | |
| 1647 nextToken(); | |
| 1648 } | |
| 1649 | |
| 1650 return NULL; | |
| 1651 } | |
| 1652 | |
| 1653 Type *Parser::parseBasicType() | |
| 1654 { Type *t; | |
| 1655 Identifier *id; | |
| 1656 TypeQualified *tid; | |
| 1657 TemplateInstance *tempinst; | |
| 1658 | |
| 1659 //printf("parseBasicType()\n"); | |
| 1660 switch (token.value) | |
| 1661 { | |
| 1662 CASE_BASIC_TYPES_X(t): | |
| 1663 nextToken(); | |
| 1664 break; | |
| 1665 | |
| 1666 case TOKidentifier: | |
| 1667 id = token.ident; | |
| 1668 nextToken(); | |
| 1669 if (token.value == TOKnot) | |
| 1670 { | |
| 1671 nextToken(); | |
| 1672 tempinst = new TemplateInstance(loc, id); | |
| 1673 tempinst->tiargs = parseTemplateArgumentList(); | |
| 1674 tid = new TypeInstance(loc, tempinst); | |
| 1675 goto Lident2; | |
| 1676 } | |
| 1677 Lident: | |
| 1678 tid = new TypeIdentifier(loc, id); | |
| 1679 Lident2: | |
| 1680 while (token.value == TOKdot) | |
| 1681 { nextToken(); | |
| 1682 if (token.value != TOKidentifier) | |
| 1683 { error("identifier expected following '.' instead of '%s'", token.toChars()); | |
| 1684 break; | |
| 1685 } | |
| 1686 id = token.ident; | |
| 1687 nextToken(); | |
| 1688 if (token.value == TOKnot) | |
| 1689 { | |
| 1690 nextToken(); | |
| 1691 tempinst = new TemplateInstance(loc, id); | |
| 1692 tempinst->tiargs = parseTemplateArgumentList(); | |
| 1693 tid->addIdent((Identifier *)tempinst); | |
| 1694 } | |
| 1695 else | |
| 1696 tid->addIdent(id); | |
| 1697 } | |
| 1698 t = tid; | |
| 1699 break; | |
| 1700 | |
| 1701 case TOKdot: | |
| 1702 // Leading . as in .foo | |
| 1703 id = Id::empty; | |
| 1704 goto Lident; | |
| 1705 | |
| 1706 case TOKtypeof: | |
| 1707 { Expression *exp; | |
| 1708 | |
| 1709 nextToken(); | |
| 1710 check(TOKlparen); | |
| 1711 exp = parseExpression(); | |
| 1712 check(TOKrparen); | |
| 1713 tid = new TypeTypeof(loc, exp); | |
| 1714 goto Lident2; | |
| 1715 } | |
| 1716 | |
| 1717 default: | |
| 1718 error("basic type expected, not %s", token.toChars()); | |
| 1719 t = Type::tint32; | |
| 1720 break; | |
| 1721 } | |
| 1722 return t; | |
| 1723 } | |
| 1724 | |
| 1725 /****************************************** | |
| 1726 * Parse things that follow the initial type t. | |
| 1727 * t * | |
| 1728 * t [] | |
| 1729 * t [type] | |
| 1730 * t [expression] | |
| 1731 * t [expression .. expression] | |
| 1732 * t function | |
| 1733 * t delegate | |
| 1734 */ | |
| 1735 | |
| 1736 Type *Parser::parseBasicType2(Type *t) | |
| 1737 { | |
| 1738 Type *ts; | |
| 1739 Type *ta; | |
| 1740 | |
| 1741 //printf("parseBasicType2()\n"); | |
| 1742 while (1) | |
| 1743 { | |
| 1744 switch (token.value) | |
| 1745 { | |
| 1746 case TOKmul: | |
| 1747 t = new TypePointer(t); | |
| 1748 nextToken(); | |
| 1749 continue; | |
| 1750 | |
| 1751 case TOKlbracket: | |
| 1752 #if LTORARRAYDECL | |
| 1753 // Handle []. Make sure things like | |
| 1754 // int[3][1] a; | |
| 1755 // is (array[1] of array[3] of int) | |
| 1756 nextToken(); | |
| 1757 if (token.value == TOKrbracket) | |
| 1758 { | |
| 1759 t = new TypeDArray(t); // [] | |
| 1760 nextToken(); | |
| 1761 } | |
| 1762 else if (isDeclaration(&token, 0, TOKrbracket, NULL)) | |
| 1763 { // It's an associative array declaration | |
| 1764 Type *index; | |
| 1765 | |
| 1766 //printf("it's an associative array\n"); | |
| 1767 index = parseBasicType(); | |
| 1768 index = parseDeclarator(index, NULL); // [ type ] | |
| 1769 t = new TypeAArray(t, index); | |
| 1770 check(TOKrbracket); | |
| 1771 } | |
| 1772 else | |
| 1773 { | |
| 1774 //printf("it's [expression]\n"); | |
| 1775 inBrackets++; | |
| 1776 Expression *e = parseExpression(); // [ expression ] | |
| 1777 if (token.value == TOKslice) | |
| 1778 { Expression *e2; | |
| 1779 | |
| 1780 nextToken(); | |
| 1781 e2 = parseExpression(); // [ exp .. exp ] | |
| 1782 t = new TypeSlice(t, e, e2); | |
| 1783 } | |
| 1784 else | |
| 1785 t = new TypeSArray(t,e); | |
| 1786 inBrackets--; | |
| 1787 check(TOKrbracket); | |
| 1788 } | |
| 1789 continue; | |
| 1790 #else | |
| 1791 // Handle []. Make sure things like | |
| 1792 // int[3][1] a; | |
| 1793 // is (array[3] of array[1] of int) | |
| 1794 ts = t; | |
| 1795 while (token.value == TOKlbracket) | |
| 1796 { | |
| 1797 nextToken(); | |
| 1798 if (token.value == TOKrbracket) | |
| 1799 { | |
| 1800 ta = new TypeDArray(t); // [] | |
| 1801 nextToken(); | |
| 1802 } | |
| 1803 else if (isDeclaration(&token, 0, TOKrbracket, NULL)) | |
| 1804 { // It's an associative array declaration | |
| 1805 Type *index; | |
| 1806 | |
| 1807 //printf("it's an associative array\n"); | |
| 1808 index = parseBasicType(); | |
| 1809 index = parseDeclarator(index, NULL); // [ type ] | |
| 1810 check(TOKrbracket); | |
| 1811 ta = new TypeAArray(t, index); | |
| 1812 } | |
| 1813 else | |
| 1814 { | |
| 1815 //printf("it's [expression]\n"); | |
| 1816 Expression *e = parseExpression(); // [ expression ] | |
| 1817 ta = new TypeSArray(t,e); | |
| 1818 check(TOKrbracket); | |
| 1819 } | |
| 1820 Type **pt; | |
| 1821 for (pt = &ts; *pt != t; pt = &(*pt)->next) | |
| 1822 ; | |
| 1823 *pt = ta; | |
| 1824 } | |
| 1825 t = ts; | |
| 1826 continue; | |
| 1827 #endif | |
| 1828 | |
| 1829 case TOKdelegate: | |
| 1830 case TOKfunction: | |
| 1831 { // Handle delegate declaration: | |
| 1832 // t delegate(parameter list) | |
| 1833 // t function(parameter list) | |
| 1834 Arguments *arguments; | |
| 1835 int varargs; | |
| 1836 enum TOK save = token.value; | |
| 1837 | |
| 1838 nextToken(); | |
| 1839 arguments = parseParameters(&varargs); | |
| 1840 t = new TypeFunction(arguments, t, varargs, linkage); | |
| 1841 if (save == TOKdelegate) | |
| 1842 t = new TypeDelegate(t); | |
| 1843 else | |
| 1844 t = new TypePointer(t); // pointer to function | |
| 1845 continue; | |
| 1846 } | |
| 1847 | |
| 1848 default: | |
| 1849 ts = t; | |
| 1850 break; | |
| 1851 } | |
| 1852 break; | |
| 1853 } | |
| 1854 return ts; | |
| 1855 } | |
| 1856 | |
| 1857 Type *Parser::parseDeclarator(Type *t, Identifier **pident, TemplateParameters **tpl) | |
| 1858 { Type *ts; | |
| 1859 Type *ta; | |
| 1860 | |
| 1861 //printf("parseDeclarator(tpl = %p)\n", tpl); | |
| 1862 t = parseBasicType2(t); | |
| 1863 | |
| 1864 switch (token.value) | |
| 1865 { | |
| 1866 | |
| 1867 case TOKidentifier: | |
| 1868 if (pident) | |
| 1869 *pident = token.ident; | |
| 1870 else | |
| 1871 error("unexpected identifer '%s' in declarator", token.ident->toChars()); | |
| 1872 ts = t; | |
| 1873 nextToken(); | |
| 1874 break; | |
| 1875 | |
| 1876 case TOKlparen: | |
| 1877 /* Parse things with parentheses around the identifier, like: | |
| 1878 * int (*ident[3])[] | |
| 1879 * although the D style would be: | |
| 1880 * int[]*[3] ident | |
| 1881 */ | |
| 1882 nextToken(); | |
| 1883 ts = parseDeclarator(t, pident); | |
| 1884 check(TOKrparen); | |
| 1885 break; | |
| 1886 | |
| 1887 default: | |
| 1888 ts = t; | |
| 1889 break; | |
| 1890 } | |
| 1891 | |
| 1892 while (1) | |
| 1893 { | |
| 1894 switch (token.value) | |
| 1895 { | |
| 1896 #if CARRAYDECL | |
| 1897 /* Support C style array syntax: | |
| 1898 * int ident[] | |
| 1899 * as opposed to D-style: | |
| 1900 * int[] ident | |
| 1901 */ | |
| 1902 case TOKlbracket: | |
| 1903 { // This is the old C-style post [] syntax. | |
| 1904 nextToken(); | |
| 1905 if (token.value == TOKrbracket) | |
| 1906 { // It's a dynamic array | |
| 1907 ta = new TypeDArray(t); // [] | |
| 1908 nextToken(); | |
| 1909 } | |
| 1910 else if (isDeclaration(&token, 0, TOKrbracket, NULL)) | |
| 1911 { // It's an associative array declaration | |
| 1912 Type *index; | |
| 1913 | |
| 1914 //printf("it's an associative array\n"); | |
| 1915 index = parseBasicType(); | |
| 1916 index = parseDeclarator(index, NULL); // [ type ] | |
| 1917 check(TOKrbracket); | |
| 1918 ta = new TypeAArray(t, index); | |
| 1919 } | |
| 1920 else | |
| 1921 { | |
| 1922 //printf("it's [expression]\n"); | |
| 1923 Expression *e = parseExpression(); // [ expression ] | |
| 1924 ta = new TypeSArray(t, e); | |
| 1925 check(TOKrbracket); | |
| 1926 } | |
| 1927 /* Insert ta into | |
| 1928 * ts -> ... -> t | |
| 1929 * so that | |
| 1930 * ts -> ... -> ta -> t | |
| 1931 */ | |
| 1932 Type **pt; | |
| 1933 for (pt = &ts; *pt != t; pt = &(*pt)->next) | |
| 1934 ; | |
| 1935 *pt = ta; | |
| 1936 continue; | |
| 1937 } | |
| 1938 #endif | |
| 1939 case TOKlparen: | |
| 1940 { Arguments *arguments; | |
| 1941 int varargs; | |
| 1942 | |
| 1943 if (tpl) | |
| 1944 { | |
| 1945 /* Look ahead to see if this is (...)(...), | |
| 1946 * i.e. a function template declaration | |
| 1947 */ | |
| 1948 if (peekPastParen(&token)->value == TOKlparen) | |
| 1949 { // It's a function template declaration | |
| 1950 //printf("function template declaration\n"); | |
| 1951 | |
| 1952 // Gather template parameter list | |
| 1953 *tpl = parseTemplateParameterList(); | |
| 1954 } | |
| 1955 } | |
| 1956 | |
| 1957 arguments = parseParameters(&varargs); | |
| 1958 Type *ta = new TypeFunction(arguments, t, varargs, linkage); | |
| 1959 Type **pt; | |
| 1960 for (pt = &ts; *pt != t; pt = &(*pt)->next) | |
| 1961 ; | |
| 1962 *pt = ta; | |
| 1963 break; | |
| 1964 } | |
| 1965 } | |
| 1966 break; | |
| 1967 } | |
| 1968 | |
| 1969 return ts; | |
| 1970 } | |
| 1971 | |
| 1972 /********************************** | |
| 1973 * Parse Declarations. | |
| 1974 * These can be: | |
| 1975 * 1. declarations at global/class level | |
| 1976 * 2. declarations at statement level | |
| 1977 * Return array of Declaration *'s. | |
| 1978 */ | |
| 1979 | |
| 1980 Array *Parser::parseDeclarations() | |
| 1981 { | |
| 1982 enum STC storage_class; | |
| 1983 enum STC stc; | |
| 1984 Type *ts; | |
| 1985 Type *t; | |
| 1986 Type *tfirst; | |
| 1987 Identifier *ident; | |
| 1988 Array *a; | |
| 1989 enum TOK tok; | |
| 1990 unsigned char *comment = token.blockComment; | |
| 1991 enum LINK link = linkage; | |
| 1992 | |
| 1993 //printf("parseDeclarations()\n"); | |
| 1994 switch (token.value) | |
| 1995 { | |
| 1996 case TOKtypedef: | |
| 1997 case TOKalias: | |
| 1998 tok = token.value; | |
| 1999 nextToken(); | |
| 2000 break; | |
| 2001 | |
| 2002 default: | |
| 2003 tok = TOKreserved; | |
| 2004 break; | |
| 2005 } | |
| 2006 | |
| 2007 storage_class = STCundefined; | |
| 2008 while (1) | |
| 2009 { | |
| 2010 switch (token.value) | |
| 2011 { | |
| 2012 case TOKconst: stc = STCconst; goto L1; | |
| 2013 case TOKstatic: stc = STCstatic; goto L1; | |
| 2014 case TOKfinal: stc = STCfinal; goto L1; | |
| 2015 case TOKauto: stc = STCauto; goto L1; | |
| 2016 case TOKscope: stc = STCscope; goto L1; | |
| 2017 case TOKoverride: stc = STCoverride; goto L1; | |
| 2018 case TOKabstract: stc = STCabstract; goto L1; | |
| 2019 case TOKsynchronized: stc = STCsynchronized; goto L1; | |
| 2020 case TOKdeprecated: stc = STCdeprecated; goto L1; | |
| 2021 L1: | |
| 2022 if (storage_class & stc) | |
| 2023 error("redundant storage class '%s'", token.toChars()); | |
| 2024 storage_class = (STC) (storage_class | stc); | |
| 2025 nextToken(); | |
| 2026 continue; | |
| 2027 | |
| 2028 case TOKextern: | |
| 2029 if (peek(&token)->value != TOKlparen) | |
| 2030 { stc = STCextern; | |
| 2031 goto L1; | |
| 2032 } | |
| 2033 | |
| 2034 link = parseLinkage(); | |
| 2035 continue; | |
| 2036 | |
| 2037 default: | |
| 2038 break; | |
| 2039 } | |
| 2040 break; | |
| 2041 } | |
| 2042 | |
| 2043 a = new Array(); | |
| 2044 | |
| 2045 /* Look for auto initializers: | |
| 2046 * storage_class identifier = initializer; | |
| 2047 */ | |
| 2048 while (storage_class && | |
| 2049 token.value == TOKidentifier && | |
| 2050 peek(&token)->value == TOKassign) | |
| 2051 { | |
| 2052 ident = token.ident; | |
| 2053 nextToken(); | |
| 2054 nextToken(); | |
| 2055 Initializer *init = parseInitializer(); | |
| 2056 VarDeclaration *v = new VarDeclaration(loc, NULL, ident, init); | |
| 2057 v->storage_class = storage_class; | |
| 2058 a->push(v); | |
| 2059 if (token.value == TOKsemicolon) | |
| 2060 { | |
| 2061 nextToken(); | |
| 2062 addComment(v, comment); | |
| 2063 } | |
| 2064 else if (token.value == TOKcomma) | |
| 2065 { | |
| 2066 nextToken(); | |
| 2067 if (!(token.value == TOKidentifier && peek(&token)->value == TOKassign)) | |
| 2068 { | |
| 2069 error("Identifier expected following comma"); | |
| 2070 } | |
| 2071 else | |
| 2072 continue; | |
| 2073 } | |
| 2074 else | |
| 2075 error("semicolon expected following auto declaration, not '%s'", token.toChars()); | |
| 2076 return a; | |
| 2077 } | |
| 2078 | |
| 2079 if (token.value == TOKclass) | |
| 2080 { AggregateDeclaration *s; | |
| 2081 | |
| 2082 s = (AggregateDeclaration *)parseAggregate(); | |
| 2083 s->storage_class |= storage_class; | |
| 2084 a->push(s); | |
| 2085 addComment(s, comment); | |
| 2086 return a; | |
| 2087 } | |
| 2088 | |
| 2089 ts = parseBasicType(); | |
| 2090 ts = parseBasicType2(ts); | |
| 2091 tfirst = NULL; | |
| 2092 | |
| 2093 while (1) | |
| 2094 { | |
| 2095 Loc loc = this->loc; | |
| 2096 TemplateParameters *tpl = NULL; | |
| 2097 | |
| 2098 ident = NULL; | |
| 2099 t = parseDeclarator(ts, &ident, &tpl); | |
| 2100 assert(t); | |
| 2101 if (!tfirst) | |
| 2102 tfirst = t; | |
| 2103 else if (t != tfirst) | |
| 2104 error("multiple declarations must have the same type, not %s and %s", | |
| 2105 tfirst->toChars(), t->toChars()); | |
| 2106 if (!ident) | |
| 2107 error("no identifier for declarator %s", t->toChars()); | |
| 2108 | |
| 2109 if (tok == TOKtypedef || tok == TOKalias) | |
| 2110 { Declaration *v; | |
| 2111 Initializer *init; | |
| 2112 | |
| 2113 init = NULL; | |
| 2114 if (token.value == TOKassign) | |
| 2115 { | |
| 2116 nextToken(); | |
| 2117 init = parseInitializer(); | |
| 2118 } | |
| 2119 if (tok == TOKtypedef) | |
| 2120 v = new TypedefDeclaration(loc, ident, t, init); | |
| 2121 else | |
| 2122 { if (init) | |
| 2123 error("alias cannot have initializer"); | |
| 2124 v = new AliasDeclaration(loc, ident, t); | |
| 2125 } | |
| 2126 v->storage_class = storage_class; | |
| 2127 if (link == linkage) | |
| 2128 a->push(v); | |
| 2129 else | |
| 2130 { | |
| 2131 Array *ax = new Array(); | |
| 2132 ax->push(v); | |
| 2133 Dsymbol *s = new LinkDeclaration(link, ax); | |
| 2134 a->push(s); | |
| 2135 } | |
| 2136 switch (token.value) | |
| 2137 { case TOKsemicolon: | |
| 2138 nextToken(); | |
| 2139 addComment(v, comment); | |
| 2140 break; | |
| 2141 | |
| 2142 case TOKcomma: | |
| 2143 nextToken(); | |
| 2144 addComment(v, comment); | |
| 2145 continue; | |
| 2146 | |
| 2147 default: | |
| 2148 error("semicolon expected to close %s declaration", Token::toChars(tok)); | |
| 2149 break; | |
| 2150 } | |
| 2151 } | |
| 2152 else if (t->ty == Tfunction) | |
| 2153 { FuncDeclaration *f; | |
| 2154 Dsymbol *s; | |
| 2155 | |
| 2156 f = new FuncDeclaration(loc, 0, ident, storage_class, t); | |
| 2157 addComment(f, comment); | |
| 2158 parseContracts(f); | |
| 2159 addComment(f, NULL); | |
| 2160 if (link == linkage) | |
| 2161 { | |
| 2162 s = f; | |
| 2163 } | |
| 2164 else | |
| 2165 { | |
| 2166 Array *ax = new Array(); | |
| 2167 ax->push(f); | |
| 2168 s = new LinkDeclaration(link, ax); | |
| 2169 } | |
| 2170 if (tpl) // it's a function template | |
| 2171 { Array *decldefs; | |
| 2172 TemplateDeclaration *tempdecl; | |
| 2173 | |
| 2174 // Wrap a template around the aggregate declaration | |
| 2175 decldefs = new Array(); | |
| 2176 decldefs->push(s); | |
| 2177 tempdecl = new TemplateDeclaration(loc, s->ident, tpl, decldefs); | |
| 2178 s = tempdecl; | |
| 2179 } | |
| 2180 addComment(s, comment); | |
| 2181 a->push(s); | |
| 2182 } | |
| 2183 else | |
| 2184 { VarDeclaration *v; | |
| 2185 Initializer *init; | |
| 2186 | |
| 2187 init = NULL; | |
| 2188 if (token.value == TOKassign) | |
| 2189 { | |
| 2190 nextToken(); | |
| 2191 init = parseInitializer(); | |
| 2192 } | |
| 2193 v = new VarDeclaration(loc, t, ident, init); | |
| 2194 v->storage_class = storage_class; | |
| 2195 if (link == linkage) | |
| 2196 a->push(v); | |
| 2197 else | |
| 2198 { | |
| 2199 Array *ax = new Array(); | |
| 2200 ax->push(v); | |
| 2201 Dsymbol *s = new LinkDeclaration(link, ax); | |
| 2202 a->push(s); | |
| 2203 } | |
| 2204 switch (token.value) | |
| 2205 { case TOKsemicolon: | |
| 2206 nextToken(); | |
| 2207 addComment(v, comment); | |
| 2208 break; | |
| 2209 | |
| 2210 case TOKcomma: | |
| 2211 nextToken(); | |
| 2212 addComment(v, comment); | |
| 2213 continue; | |
| 2214 | |
| 2215 default: | |
| 2216 error("semicolon expected, not '%s'", token.toChars()); | |
| 2217 break; | |
| 2218 } | |
| 2219 } | |
| 2220 break; | |
| 2221 } | |
| 2222 return a; | |
| 2223 } | |
| 2224 | |
| 2225 /***************************************** | |
| 2226 * Parse auto declarations of the form: | |
| 2227 * storageClass ident = init, ident = init, ... ; | |
| 2228 * and return the array of them. | |
| 2229 * Starts with token on the first ident. | |
| 2230 * Ends with scanner past closing ';' | |
| 2231 */ | |
| 2232 | |
| 2233 #if DMDV2 | |
| 2234 Array *Parser::parseAutoDeclarations(unsigned storageClass, unsigned char *comment) | |
| 2235 { | |
| 2236 Array *a = new Array; | |
| 2237 | |
| 2238 while (1) | |
| 2239 { | |
| 2240 Identifier *ident = token.ident; | |
| 2241 nextToken(); // skip over ident | |
| 2242 assert(token.value == TOKassign); | |
| 2243 nextToken(); // skip over '=' | |
| 2244 Initializer *init = parseInitializer(); | |
| 2245 VarDeclaration *v = new VarDeclaration(loc, NULL, ident, init); | |
| 2246 v->storage_class = storageClass; | |
| 2247 a->push(v); | |
| 2248 if (token.value == TOKsemicolon) | |
| 2249 { | |
| 2250 nextToken(); | |
| 2251 addComment(v, comment); | |
| 2252 } | |
| 2253 else if (token.value == TOKcomma) | |
| 2254 { | |
| 2255 nextToken(); | |
| 2256 if (token.value == TOKidentifier && | |
| 2257 peek(&token)->value == TOKassign) | |
| 2258 { | |
| 2259 addComment(v, comment); | |
| 2260 continue; | |
| 2261 } | |
| 2262 else | |
| 2263 error("Identifier expected following comma"); | |
| 2264 } | |
| 2265 else | |
| 2266 error("semicolon expected following auto declaration, not '%s'", token.toChars()); | |
| 2267 break; | |
| 2268 } | |
| 2269 return a; | |
| 2270 } | |
| 2271 #endif | |
| 2272 | |
| 2273 /***************************************** | |
| 2274 * Parse contracts following function declaration. | |
| 2275 */ | |
| 2276 | |
| 2277 void Parser::parseContracts(FuncDeclaration *f) | |
| 2278 { | |
| 2279 Type *tb; | |
| 2280 enum LINK linksave = linkage; | |
| 2281 | |
| 2282 // The following is irrelevant, as it is overridden by sc->linkage in | |
| 2283 // TypeFunction::semantic | |
| 2284 linkage = LINKd; // nested functions have D linkage | |
| 2285 L1: | |
| 2286 switch (token.value) | |
| 2287 { | |
| 2288 case TOKlcurly: | |
| 2289 if (f->frequire || f->fensure) | |
| 2290 error("missing body { ... } after in or out"); | |
| 2291 f->fbody = parseStatement(PSsemi); | |
| 2292 f->endloc = endloc; | |
| 2293 break; | |
| 2294 | |
| 2295 case TOKbody: | |
| 2296 nextToken(); | |
| 2297 f->fbody = parseStatement(PScurly); | |
| 2298 f->endloc = endloc; | |
| 2299 break; | |
| 2300 | |
| 2301 case TOKsemicolon: | |
| 2302 if (f->frequire || f->fensure) | |
| 2303 error("missing body { ... } after in or out"); | |
| 2304 nextToken(); | |
| 2305 break; | |
| 2306 | |
| 2307 #if 0 // Do we want this for function declarations, so we can do: | |
| 2308 // int x, y, foo(), z; | |
| 2309 case TOKcomma: | |
| 2310 nextToken(); | |
| 2311 continue; | |
| 2312 #endif | |
| 2313 | |
| 2314 #if 0 // Dumped feature | |
| 2315 case TOKthrow: | |
| 2316 if (!f->fthrows) | |
| 2317 f->fthrows = new Array(); | |
| 2318 nextToken(); | |
| 2319 check(TOKlparen); | |
| 2320 while (1) | |
| 2321 { | |
| 2322 tb = parseBasicType(); | |
| 2323 f->fthrows->push(tb); | |
| 2324 if (token.value == TOKcomma) | |
| 2325 { nextToken(); | |
| 2326 continue; | |
| 2327 } | |
| 2328 break; | |
| 2329 } | |
| 2330 check(TOKrparen); | |
| 2331 goto L1; | |
| 2332 #endif | |
| 2333 | |
| 2334 case TOKin: | |
| 2335 nextToken(); | |
| 2336 if (f->frequire) | |
| 2337 error("redundant 'in' statement"); | |
| 2338 f->frequire = parseStatement(PScurly | PSscope); | |
| 2339 goto L1; | |
| 2340 | |
| 2341 case TOKout: | |
| 2342 // parse: out (identifier) { statement } | |
| 2343 nextToken(); | |
| 2344 if (token.value != TOKlcurly) | |
| 2345 { | |
| 2346 check(TOKlparen); | |
| 2347 if (token.value != TOKidentifier) | |
| 2348 error("(identifier) following 'out' expected, not %s", token.toChars()); | |
| 2349 f->outId = token.ident; | |
| 2350 nextToken(); | |
| 2351 check(TOKrparen); | |
| 2352 } | |
| 2353 if (f->fensure) | |
| 2354 error("redundant 'out' statement"); | |
| 2355 f->fensure = parseStatement(PScurly | PSscope); | |
| 2356 goto L1; | |
| 2357 | |
| 2358 default: | |
| 2359 error("semicolon expected following function declaration"); | |
| 2360 break; | |
| 2361 } | |
| 2362 linkage = linksave; | |
| 2363 } | |
| 2364 | |
| 2365 /***************************************** | |
| 2366 */ | |
| 2367 | |
| 2368 Initializer *Parser::parseInitializer() | |
| 2369 { | |
| 2370 StructInitializer *is; | |
| 2371 ArrayInitializer *ia; | |
| 2372 ExpInitializer *ie; | |
| 2373 Expression *e; | |
| 2374 Identifier *id; | |
| 2375 Initializer *value; | |
| 2376 int comma; | |
| 2377 Loc loc = this->loc; | |
| 2378 Token *t; | |
| 2379 int braces; | |
|
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2380 int brackets; |
| 336 | 2381 |
| 2382 switch (token.value) | |
| 2383 { | |
| 2384 case TOKlcurly: | |
| 2385 /* Scan ahead to see if it is a struct initializer or | |
| 2386 * a function literal. | |
| 2387 * If it contains a ';', it is a function literal. | |
| 2388 * Treat { } as a struct initializer. | |
| 2389 */ | |
| 2390 braces = 1; | |
| 2391 for (t = peek(&token); 1; t = peek(t)) | |
| 2392 { | |
| 2393 switch (t->value) | |
| 2394 { | |
| 2395 case TOKsemicolon: | |
| 2396 case TOKreturn: | |
| 2397 goto Lexpression; | |
| 2398 | |
| 2399 case TOKlcurly: | |
| 2400 braces++; | |
| 2401 continue; | |
| 2402 | |
| 2403 case TOKrcurly: | |
| 2404 if (--braces == 0) | |
| 2405 break; | |
| 2406 continue; | |
| 2407 | |
| 2408 case TOKeof: | |
| 2409 break; | |
| 2410 | |
| 2411 default: | |
| 2412 continue; | |
| 2413 } | |
| 2414 break; | |
| 2415 } | |
| 2416 | |
| 2417 is = new StructInitializer(loc); | |
| 2418 nextToken(); | |
| 2419 comma = 0; | |
| 2420 while (1) | |
| 2421 { | |
| 2422 switch (token.value) | |
| 2423 { | |
| 2424 case TOKidentifier: | |
| 2425 if (comma == 1) | |
| 2426 error("comma expected separating field initializers"); | |
| 2427 t = peek(&token); | |
| 2428 if (t->value == TOKcolon) | |
| 2429 { | |
| 2430 id = token.ident; | |
| 2431 nextToken(); | |
| 2432 nextToken(); // skip over ':' | |
| 2433 } | |
| 2434 else | |
| 2435 { id = NULL; | |
| 2436 } | |
| 2437 value = parseInitializer(); | |
| 2438 is->addInit(id, value); | |
| 2439 comma = 1; | |
| 2440 continue; | |
| 2441 | |
| 2442 case TOKcomma: | |
| 2443 nextToken(); | |
| 2444 comma = 2; | |
| 2445 continue; | |
| 2446 | |
| 2447 case TOKrcurly: // allow trailing comma's | |
| 2448 nextToken(); | |
| 2449 break; | |
| 2450 | |
| 2451 case TOKeof: | |
| 2452 error("found EOF instead of initializer"); | |
| 2453 break; | |
| 2454 | |
| 2455 default: | |
| 2456 value = parseInitializer(); | |
| 2457 is->addInit(NULL, value); | |
| 2458 comma = 1; | |
| 2459 continue; | |
| 2460 //error("found '%s' instead of field initializer", token.toChars()); | |
| 2461 //break; | |
| 2462 } | |
| 2463 break; | |
| 2464 } | |
| 2465 return is; | |
| 2466 | |
| 2467 case TOKlbracket: | |
|
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2468 /* Scan ahead to see if it is an array initializer or |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2469 * an expression. |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2470 * If it ends with a ';', it is an array initializer. |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2471 */ |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2472 brackets = 1; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2473 for (t = peek(&token); 1; t = peek(t)) |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2474 { |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2475 switch (t->value) |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2476 { |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2477 case TOKlbracket: |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2478 brackets++; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2479 continue; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2480 |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2481 case TOKrbracket: |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2482 if (--brackets == 0) |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2483 { t = peek(t); |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2484 if (t->value != TOKsemicolon && |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2485 t->value != TOKcomma && |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2486 t->value != TOKrcurly) |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2487 goto Lexpression; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2488 break; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2489 } |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2490 continue; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2491 |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2492 case TOKeof: |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2493 break; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2494 |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2495 default: |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2496 continue; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2497 } |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2498 break; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2499 } |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2500 |
| 336 | 2501 ia = new ArrayInitializer(loc); |
| 2502 nextToken(); | |
| 2503 comma = 0; | |
| 2504 while (1) | |
| 2505 { | |
| 2506 switch (token.value) | |
| 2507 { | |
| 2508 default: | |
| 2509 if (comma == 1) | |
| 2510 { error("comma expected separating array initializers, not %s", token.toChars()); | |
| 2511 nextToken(); | |
| 2512 break; | |
| 2513 } | |
| 2514 e = parseAssignExp(); | |
| 2515 if (!e) | |
| 2516 break; | |
| 2517 if (token.value == TOKcolon) | |
| 2518 { | |
| 2519 nextToken(); | |
| 2520 value = parseInitializer(); | |
| 2521 } | |
| 2522 else | |
| 2523 { value = new ExpInitializer(e->loc, e); | |
| 2524 e = NULL; | |
| 2525 } | |
| 2526 ia->addInit(e, value); | |
| 2527 comma = 1; | |
| 2528 continue; | |
| 2529 | |
| 2530 case TOKlcurly: | |
| 2531 case TOKlbracket: | |
| 2532 if (comma == 1) | |
| 2533 error("comma expected separating array initializers, not %s", token.toChars()); | |
| 2534 value = parseInitializer(); | |
| 2535 ia->addInit(NULL, value); | |
| 2536 comma = 1; | |
| 2537 continue; | |
| 2538 | |
| 2539 case TOKcomma: | |
| 2540 nextToken(); | |
| 2541 comma = 2; | |
| 2542 continue; | |
| 2543 | |
| 2544 case TOKrbracket: // allow trailing comma's | |
| 2545 nextToken(); | |
| 2546 break; | |
| 2547 | |
| 2548 case TOKeof: | |
| 2549 error("found '%s' instead of array initializer", token.toChars()); | |
| 2550 break; | |
| 2551 } | |
| 2552 break; | |
| 2553 } | |
| 2554 return ia; | |
| 2555 | |
| 2556 case TOKvoid: | |
| 2557 t = peek(&token); | |
| 2558 if (t->value == TOKsemicolon || t->value == TOKcomma) | |
| 2559 { | |
| 2560 nextToken(); | |
| 2561 return new VoidInitializer(loc); | |
| 2562 } | |
| 2563 goto Lexpression; | |
| 2564 | |
| 2565 default: | |
| 2566 Lexpression: | |
| 2567 e = parseAssignExp(); | |
| 2568 ie = new ExpInitializer(loc, e); | |
| 2569 return ie; | |
| 2570 } | |
| 2571 } | |
| 2572 | |
| 2573 /***************************************** | |
| 2574 * Parses default argument initializer expression that is an assign expression, | |
| 2575 * with special handling for __FILE__ and __LINE__. | |
| 2576 */ | |
| 2577 | |
| 2578 #if DMDV2 | |
| 2579 Expression *Parser::parseDefaultInitExp() | |
| 2580 { | |
| 2581 if (token.value == TOKfile || | |
| 2582 token.value == TOKline) | |
| 2583 { | |
| 2584 Token *t = peek(&token); | |
| 2585 if (t->value == TOKcomma || t->value == TOKrparen) | |
| 2586 { Expression *e; | |
| 2587 | |
| 2588 if (token.value == TOKfile) | |
| 2589 e = new FileInitExp(loc); | |
| 2590 else | |
| 2591 e = new LineInitExp(loc); | |
| 2592 nextToken(); | |
| 2593 return e; | |
| 2594 } | |
| 2595 } | |
| 2596 | |
| 2597 Expression *e = parseAssignExp(); | |
| 2598 return e; | |
| 2599 } | |
| 2600 #endif | |
| 2601 | |
| 2602 /***************************************** | |
| 2603 * Input: | |
| 2604 * flags PSxxxx | |
| 2605 */ | |
| 2606 | |
| 2607 Statement *Parser::parseStatement(int flags) | |
| 2608 { Statement *s; | |
| 2609 Token *t; | |
| 2610 Condition *condition; | |
| 2611 Statement *ifbody; | |
| 2612 Statement *elsebody; | |
| 2613 Loc loc = this->loc; | |
| 2614 | |
| 2615 //printf("parseStatement()\n"); | |
| 2616 | |
| 2617 if (flags & PScurly && token.value != TOKlcurly) | |
| 2618 error("statement expected to be { }, not %s", token.toChars()); | |
| 2619 | |
| 2620 switch (token.value) | |
| 2621 { | |
| 2622 case TOKidentifier: | |
| 2623 // Need to look ahead to see if it is a declaration, label, or expression | |
| 2624 t = peek(&token); | |
| 2625 if (t->value == TOKcolon) | |
| 2626 { // It's a label | |
| 2627 Identifier *ident; | |
| 2628 | |
| 2629 ident = token.ident; | |
| 2630 nextToken(); | |
| 2631 nextToken(); | |
| 2632 s = parseStatement(PSsemi); | |
| 2633 s = new LabelStatement(loc, ident, s); | |
| 2634 break; | |
| 2635 } | |
| 2636 // fallthrough to TOKdot | |
| 2637 case TOKdot: | |
| 2638 case TOKtypeof: | |
| 2639 if (isDeclaration(&token, 2, TOKreserved, NULL)) | |
| 2640 goto Ldeclaration; | |
| 2641 else | |
| 2642 goto Lexp; | |
| 2643 break; | |
| 2644 | |
| 2645 case TOKassert: | |
| 2646 case TOKthis: | |
| 2647 case TOKsuper: | |
| 2648 case TOKint32v: | |
| 2649 case TOKuns32v: | |
| 2650 case TOKint64v: | |
| 2651 case TOKuns64v: | |
| 2652 case TOKfloat32v: | |
| 2653 case TOKfloat64v: | |
| 2654 case TOKfloat80v: | |
| 2655 case TOKimaginary32v: | |
| 2656 case TOKimaginary64v: | |
| 2657 case TOKimaginary80v: | |
| 2658 case TOKcharv: | |
| 2659 case TOKwcharv: | |
| 2660 case TOKdcharv: | |
| 2661 case TOKnull: | |
| 2662 case TOKtrue: | |
| 2663 case TOKfalse: | |
| 2664 case TOKstring: | |
| 2665 case TOKlparen: | |
| 2666 case TOKcast: | |
| 2667 case TOKmul: | |
| 2668 case TOKmin: | |
| 2669 case TOKadd: | |
| 2670 case TOKplusplus: | |
| 2671 case TOKminusminus: | |
| 2672 case TOKnew: | |
| 2673 case TOKdelete: | |
| 2674 case TOKdelegate: | |
| 2675 case TOKfunction: | |
| 2676 case TOKtypeid: | |
| 2677 case TOKis: | |
| 2678 case TOKlbracket: | |
| 2679 #if DMDV2 | |
| 2680 case TOKtraits: | |
| 2681 case TOKfile: | |
| 2682 case TOKline: | |
| 2683 #endif | |
| 2684 Lexp: | |
| 2685 { Expression *exp; | |
| 2686 | |
| 2687 exp = parseExpression(); | |
| 2688 check(TOKsemicolon, "statement"); | |
| 2689 s = new ExpStatement(loc, exp); | |
| 2690 break; | |
| 2691 } | |
| 2692 | |
| 2693 case TOKstatic: | |
| 2694 { // Look ahead to see if it's static assert() or static if() | |
| 2695 Token *t; | |
| 2696 | |
| 2697 t = peek(&token); | |
| 2698 if (t->value == TOKassert) | |
| 2699 { | |
| 2700 nextToken(); | |
| 2701 s = new StaticAssertStatement(parseStaticAssert()); | |
| 2702 break; | |
| 2703 } | |
| 2704 if (t->value == TOKif) | |
| 2705 { | |
| 2706 nextToken(); | |
| 2707 condition = parseStaticIfCondition(); | |
| 2708 goto Lcondition; | |
| 2709 } | |
| 2710 goto Ldeclaration; | |
| 2711 } | |
| 2712 | |
| 2713 CASE_BASIC_TYPES: | |
| 2714 case TOKtypedef: | |
| 2715 case TOKalias: | |
| 2716 case TOKconst: | |
| 2717 case TOKauto: | |
| 2718 case TOKextern: | |
| 2719 case TOKfinal: | |
| 2720 case TOKinvariant: | |
| 2721 // case TOKtypeof: | |
| 2722 Ldeclaration: | |
| 2723 { Array *a; | |
| 2724 | |
| 2725 a = parseDeclarations(); | |
| 2726 if (a->dim > 1) | |
| 2727 { | |
| 2728 Statements *as = new Statements(); | |
| 2729 as->reserve(a->dim); | |
| 2730 for (int i = 0; i < a->dim; i++) | |
| 2731 { | |
| 2732 Dsymbol *d = (Dsymbol *)a->data[i]; | |
| 2733 s = new DeclarationStatement(loc, d); | |
| 2734 as->push(s); | |
| 2735 } | |
| 2736 s = new CompoundStatement(loc, as); | |
| 2737 } | |
| 2738 else if (a->dim == 1) | |
| 2739 { | |
| 2740 Dsymbol *d = (Dsymbol *)a->data[0]; | |
| 2741 s = new DeclarationStatement(loc, d); | |
| 2742 } | |
| 2743 else | |
| 2744 assert(0); | |
| 2745 if (flags & PSscope) | |
| 2746 s = new ScopeStatement(loc, s); | |
| 2747 break; | |
| 2748 } | |
| 2749 | |
| 2750 case TOKstruct: | |
| 2751 case TOKunion: | |
| 2752 case TOKclass: | |
| 2753 case TOKinterface: | |
| 2754 { Dsymbol *d; | |
| 2755 | |
| 2756 d = parseAggregate(); | |
| 2757 s = new DeclarationStatement(loc, d); | |
| 2758 break; | |
| 2759 } | |
| 2760 | |
| 2761 case TOKenum: | |
| 2762 { Dsymbol *d; | |
| 2763 | |
| 2764 d = parseEnum(); | |
| 2765 s = new DeclarationStatement(loc, d); | |
| 2766 break; | |
| 2767 } | |
| 2768 | |
| 2769 case TOKmixin: | |
| 2770 { t = peek(&token); | |
| 2771 if (t->value == TOKlparen) | |
| 2772 { // mixin(string) | |
| 2773 nextToken(); | |
| 2774 check(TOKlparen, "mixin"); | |
| 2775 Expression *e = parseAssignExp(); | |
| 2776 check(TOKrparen); | |
| 2777 check(TOKsemicolon); | |
| 2778 s = new CompileStatement(loc, e); | |
| 2779 break; | |
| 2780 } | |
| 2781 Dsymbol *d = parseMixin(); | |
| 2782 s = new DeclarationStatement(loc, d); | |
| 2783 break; | |
| 2784 } | |
| 2785 | |
| 2786 case TOKlcurly: | |
| 2787 { Statements *statements; | |
| 2788 | |
| 2789 nextToken(); | |
| 2790 statements = new Statements(); | |
| 2791 while (token.value != TOKrcurly) | |
| 2792 { | |
| 2793 statements->push(parseStatement(PSsemi | PScurlyscope)); | |
| 2794 } | |
| 2795 endloc = this->loc; | |
| 2796 s = new CompoundStatement(loc, statements); | |
| 2797 if (flags & (PSscope | PScurlyscope)) | |
| 2798 s = new ScopeStatement(loc, s); | |
| 2799 nextToken(); | |
| 2800 break; | |
| 2801 } | |
| 2802 | |
| 2803 case TOKwhile: | |
| 2804 { Expression *condition; | |
| 2805 Statement *body; | |
| 2806 | |
| 2807 nextToken(); | |
| 2808 check(TOKlparen); | |
| 2809 condition = parseExpression(); | |
| 2810 check(TOKrparen); | |
| 2811 body = parseStatement(PSscope); | |
| 2812 s = new WhileStatement(loc, condition, body); | |
| 2813 break; | |
| 2814 } | |
| 2815 | |
| 2816 case TOKsemicolon: | |
| 2817 if (!(flags & PSsemi)) | |
| 2818 error("use '{ }' for an empty statement, not a ';'"); | |
| 2819 nextToken(); | |
| 2820 s = new ExpStatement(loc, NULL); | |
| 2821 break; | |
| 2822 | |
| 2823 case TOKdo: | |
| 2824 { Statement *body; | |
| 2825 Expression *condition; | |
| 2826 | |
| 2827 nextToken(); | |
| 2828 body = parseStatement(PSscope); | |
| 2829 check(TOKwhile); | |
| 2830 check(TOKlparen); | |
| 2831 condition = parseExpression(); | |
| 2832 check(TOKrparen); | |
| 2833 s = new DoStatement(loc, body, condition); | |
| 2834 break; | |
| 2835 } | |
| 2836 | |
| 2837 case TOKfor: | |
| 2838 { | |
| 2839 Statement *init; | |
| 2840 Expression *condition; | |
| 2841 Expression *increment; | |
| 2842 Statement *body; | |
| 2843 | |
| 2844 nextToken(); | |
| 2845 check(TOKlparen); | |
| 2846 if (token.value == TOKsemicolon) | |
| 2847 { init = NULL; | |
| 2848 nextToken(); | |
| 2849 } | |
| 2850 else | |
| 2851 { init = parseStatement(0); | |
| 2852 } | |
| 2853 if (token.value == TOKsemicolon) | |
| 2854 { | |
| 2855 condition = NULL; | |
| 2856 nextToken(); | |
| 2857 } | |
| 2858 else | |
| 2859 { | |
| 2860 condition = parseExpression(); | |
| 2861 check(TOKsemicolon, "for condition"); | |
| 2862 } | |
| 2863 if (token.value == TOKrparen) | |
| 2864 { increment = NULL; | |
| 2865 nextToken(); | |
| 2866 } | |
| 2867 else | |
| 2868 { increment = parseExpression(); | |
| 2869 check(TOKrparen); | |
| 2870 } | |
| 2871 body = parseStatement(PSscope); | |
| 2872 s = new ForStatement(loc, init, condition, increment, body); | |
| 2873 if (init) | |
| 2874 s = new ScopeStatement(loc, s); | |
| 2875 break; | |
| 2876 } | |
| 2877 | |
| 2878 case TOKforeach: | |
| 2879 case TOKforeach_reverse: | |
| 2880 { | |
| 2881 enum TOK op = token.value; | |
| 2882 Arguments *arguments; | |
| 2883 | |
| 2884 Statement *d; | |
| 2885 Statement *body; | |
| 2886 Expression *aggr; | |
| 2887 | |
| 2888 nextToken(); | |
| 2889 check(TOKlparen); | |
| 2890 | |
| 2891 arguments = new Arguments(); | |
| 2892 | |
| 2893 while (1) | |
| 2894 { | |
| 2895 Type *tb; | |
| 2896 Identifier *ai = NULL; | |
| 2897 Type *at; | |
| 2898 unsigned storageClass; | |
| 2899 Argument *a; | |
| 2900 | |
| 2901 storageClass = STCin; | |
| 2902 if (token.value == TOKinout || token.value == TOKref) | |
| 2903 { storageClass = STCref; | |
| 2904 nextToken(); | |
| 2905 } | |
| 2906 if (token.value == TOKidentifier) | |
| 2907 { | |
| 2908 Token *t = peek(&token); | |
| 2909 if (t->value == TOKcomma || t->value == TOKsemicolon) | |
| 2910 { ai = token.ident; | |
| 2911 at = NULL; // infer argument type | |
| 2912 nextToken(); | |
| 2913 goto Larg; | |
| 2914 } | |
| 2915 } | |
| 2916 tb = parseBasicType(); | |
| 2917 at = parseDeclarator(tb, &ai); | |
| 2918 if (!ai) | |
| 2919 error("no identifier for declarator %s", at->toChars()); | |
| 2920 Larg: | |
| 2921 a = new Argument(storageClass, at, ai, NULL); | |
| 2922 arguments->push(a); | |
| 2923 if (token.value == TOKcomma) | |
| 2924 { nextToken(); | |
| 2925 continue; | |
| 2926 } | |
| 2927 break; | |
| 2928 } | |
| 2929 check(TOKsemicolon); | |
| 2930 | |
| 2931 aggr = parseExpression(); | |
| 2932 check(TOKrparen); | |
| 2933 body = parseStatement(0); | |
| 2934 s = new ForeachStatement(loc, op, arguments, aggr, body); | |
| 2935 break; | |
| 2936 } | |
| 2937 | |
| 2938 case TOKif: | |
| 2939 { Argument *arg = NULL; | |
| 2940 Expression *condition; | |
| 2941 Statement *ifbody; | |
| 2942 Statement *elsebody; | |
| 2943 | |
| 2944 nextToken(); | |
| 2945 check(TOKlparen); | |
| 2946 | |
| 2947 if (token.value == TOKauto) | |
| 2948 { | |
| 2949 nextToken(); | |
| 2950 if (token.value == TOKidentifier) | |
| 2951 { | |
| 2952 Token *t = peek(&token); | |
| 2953 if (t->value == TOKassign) | |
| 2954 { | |
| 2955 arg = new Argument(STCin, NULL, token.ident, NULL); | |
| 2956 nextToken(); | |
| 2957 nextToken(); | |
| 2958 } | |
| 2959 else | |
| 2960 { error("= expected following auto identifier"); | |
| 2961 goto Lerror; | |
| 2962 } | |
| 2963 } | |
| 2964 else | |
| 2965 { error("identifier expected following auto"); | |
| 2966 goto Lerror; | |
| 2967 } | |
| 2968 } | |
| 2969 else if (isDeclaration(&token, 2, TOKassign, NULL)) | |
| 2970 { | |
| 2971 Type *tb; | |
| 2972 Type *at; | |
| 2973 Identifier *ai; | |
| 2974 | |
| 2975 tb = parseBasicType(); | |
| 2976 at = parseDeclarator(tb, &ai); | |
| 2977 check(TOKassign); | |
| 2978 arg = new Argument(STCin, at, ai, NULL); | |
| 2979 } | |
| 2980 | |
| 2981 // Check for " ident;" | |
| 2982 else if (token.value == TOKidentifier) | |
| 2983 { | |
| 2984 Token *t = peek(&token); | |
| 2985 if (t->value == TOKcomma || t->value == TOKsemicolon) | |
| 2986 { | |
| 2987 arg = new Argument(STCin, NULL, token.ident, NULL); | |
| 2988 nextToken(); | |
| 2989 nextToken(); | |
| 2990 if (1 || !global.params.useDeprecated) | |
| 2991 error("if (v; e) is deprecated, use if (auto v = e)"); | |
| 2992 } | |
| 2993 } | |
| 2994 | |
| 2995 condition = parseExpression(); | |
| 2996 check(TOKrparen); | |
| 2997 ifbody = parseStatement(PSscope); | |
| 2998 if (token.value == TOKelse) | |
| 2999 { | |
| 3000 nextToken(); | |
| 3001 elsebody = parseStatement(PSscope); | |
| 3002 } | |
| 3003 else | |
| 3004 elsebody = NULL; | |
| 3005 s = new IfStatement(loc, arg, condition, ifbody, elsebody); | |
| 3006 break; | |
| 3007 } | |
| 3008 | |
| 3009 case TOKscope: | |
| 3010 if (peek(&token)->value != TOKlparen) | |
| 3011 goto Ldeclaration; // scope used as storage class | |
| 3012 nextToken(); | |
| 3013 check(TOKlparen); | |
| 3014 if (token.value != TOKidentifier) | |
| 3015 { error("scope identifier expected"); | |
| 3016 goto Lerror; | |
| 3017 } | |
| 3018 else | |
| 3019 { TOK t = TOKon_scope_exit; | |
| 3020 Identifier *id = token.ident; | |
| 3021 | |
| 3022 if (id == Id::exit) | |
| 3023 t = TOKon_scope_exit; | |
| 3024 else if (id == Id::failure) | |
| 3025 t = TOKon_scope_failure; | |
| 3026 else if (id == Id::success) | |
| 3027 t = TOKon_scope_success; | |
| 3028 else | |
| 3029 error("valid scope identifiers are exit, failure, or success, not %s", id->toChars()); | |
| 3030 nextToken(); | |
| 3031 check(TOKrparen); | |
| 3032 Statement *st = parseStatement(PScurlyscope); | |
| 3033 s = new OnScopeStatement(loc, t, st); | |
| 3034 break; | |
| 3035 } | |
| 3036 | |
| 3037 case TOKdebug: | |
| 3038 nextToken(); | |
| 3039 condition = parseDebugCondition(); | |
| 3040 goto Lcondition; | |
| 3041 | |
| 3042 case TOKversion: | |
| 3043 nextToken(); | |
| 3044 condition = parseVersionCondition(); | |
| 3045 goto Lcondition; | |
| 3046 | |
| 3047 Lcondition: | |
| 3048 ifbody = parseStatement(0 /*PSsemi*/); | |
| 3049 elsebody = NULL; | |
| 3050 if (token.value == TOKelse) | |
| 3051 { | |
| 3052 nextToken(); | |
| 3053 elsebody = parseStatement(0 /*PSsemi*/); | |
| 3054 } | |
| 3055 s = new ConditionalStatement(loc, condition, ifbody, elsebody); | |
| 3056 break; | |
| 3057 | |
| 3058 case TOKpragma: | |
| 3059 { Identifier *ident; | |
| 3060 Expressions *args = NULL; | |
| 3061 Statement *body; | |
| 3062 | |
| 3063 nextToken(); | |
| 3064 check(TOKlparen); | |
| 3065 if (token.value != TOKidentifier) | |
| 3066 { error("pragma(identifier expected"); | |
| 3067 goto Lerror; | |
| 3068 } | |
| 3069 ident = token.ident; | |
| 3070 nextToken(); | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
737
diff
changeset
|
3071 if (token.value == TOKcomma && peekNext() != TOKrparen) |
| 336 | 3072 args = parseArguments(); // pragma(identifier, args...); |
| 3073 else | |
| 3074 check(TOKrparen); // pragma(identifier); | |
| 3075 if (token.value == TOKsemicolon) | |
| 3076 { nextToken(); | |
| 3077 body = NULL; | |
| 3078 } | |
| 3079 else | |
| 3080 body = parseStatement(PSsemi); | |
| 3081 s = new PragmaStatement(loc, ident, args, body); | |
| 3082 break; | |
| 3083 } | |
| 3084 | |
| 3085 case TOKswitch: | |
| 3086 { Expression *condition; | |
| 3087 Statement *body; | |
| 3088 | |
| 3089 nextToken(); | |
| 3090 check(TOKlparen); | |
| 3091 condition = parseExpression(); | |
| 3092 check(TOKrparen); | |
| 3093 body = parseStatement(PSscope); | |
| 3094 s = new SwitchStatement(loc, condition, body); | |
| 3095 break; | |
| 3096 } | |
| 3097 | |
| 3098 case TOKcase: | |
| 3099 { Expression *exp; | |
| 3100 Statements *statements; | |
| 3101 Array cases; // array of Expression's | |
| 3102 | |
| 3103 while (1) | |
| 3104 { | |
| 3105 nextToken(); | |
| 3106 exp = parseAssignExp(); | |
| 3107 cases.push(exp); | |
| 3108 if (token.value != TOKcomma) | |
| 3109 break; | |
| 3110 } | |
| 3111 check(TOKcolon); | |
| 3112 | |
| 3113 statements = new Statements(); | |
| 3114 while (token.value != TOKcase && | |
| 3115 token.value != TOKdefault && | |
| 3116 token.value != TOKrcurly) | |
| 3117 { | |
| 3118 statements->push(parseStatement(PSsemi | PScurlyscope)); | |
| 3119 } | |
| 3120 s = new CompoundStatement(loc, statements); | |
| 3121 s = new ScopeStatement(loc, s); | |
| 3122 | |
| 3123 // Keep cases in order by building the case statements backwards | |
| 3124 for (int i = cases.dim; i; i--) | |
| 3125 { | |
| 3126 exp = (Expression *)cases.data[i - 1]; | |
| 3127 s = new CaseStatement(loc, exp, s); | |
| 3128 } | |
| 3129 break; | |
| 3130 } | |
| 3131 | |
| 3132 case TOKdefault: | |
| 3133 { | |
| 3134 Statements *statements; | |
| 3135 | |
| 3136 nextToken(); | |
| 3137 check(TOKcolon); | |
| 3138 | |
| 3139 statements = new Statements(); | |
| 3140 while (token.value != TOKcase && | |
| 3141 token.value != TOKdefault && | |
| 3142 token.value != TOKrcurly) | |
| 3143 { | |
| 3144 statements->push(parseStatement(PSsemi | PScurlyscope)); | |
| 3145 } | |
| 3146 s = new CompoundStatement(loc, statements); | |
| 3147 s = new ScopeStatement(loc, s); | |
| 3148 s = new DefaultStatement(loc, s); | |
| 3149 break; | |
| 3150 } | |
| 3151 | |
| 3152 case TOKreturn: | |
| 3153 { Expression *exp; | |
| 3154 | |
| 3155 nextToken(); | |
| 3156 if (token.value == TOKsemicolon) | |
| 3157 exp = NULL; | |
| 3158 else | |
| 3159 exp = parseExpression(); | |
| 3160 check(TOKsemicolon, "return statement"); | |
| 3161 s = new ReturnStatement(loc, exp); | |
| 3162 break; | |
| 3163 } | |
| 3164 | |
| 3165 case TOKbreak: | |
| 3166 { Identifier *ident; | |
| 3167 | |
| 3168 nextToken(); | |
| 3169 if (token.value == TOKidentifier) | |
| 3170 { ident = token.ident; | |
| 3171 nextToken(); | |
| 3172 } | |
| 3173 else | |
| 3174 ident = NULL; | |
| 3175 check(TOKsemicolon, "break statement"); | |
| 3176 s = new BreakStatement(loc, ident); | |
| 3177 break; | |
| 3178 } | |
| 3179 | |
| 3180 case TOKcontinue: | |
| 3181 { Identifier *ident; | |
| 3182 | |
| 3183 nextToken(); | |
| 3184 if (token.value == TOKidentifier) | |
| 3185 { ident = token.ident; | |
| 3186 nextToken(); | |
| 3187 } | |
| 3188 else | |
| 3189 ident = NULL; | |
| 3190 check(TOKsemicolon, "continue statement"); | |
| 3191 s = new ContinueStatement(loc, ident); | |
| 3192 break; | |
| 3193 } | |
| 3194 | |
| 3195 case TOKgoto: | |
| 3196 { Identifier *ident; | |
| 3197 | |
| 3198 nextToken(); | |
| 3199 if (token.value == TOKdefault) | |
| 3200 { | |
| 3201 nextToken(); | |
| 3202 s = new GotoDefaultStatement(loc); | |
| 3203 } | |
| 3204 else if (token.value == TOKcase) | |
| 3205 { | |
| 3206 Expression *exp = NULL; | |
| 3207 | |
| 3208 nextToken(); | |
| 3209 if (token.value != TOKsemicolon) | |
| 3210 exp = parseExpression(); | |
| 3211 s = new GotoCaseStatement(loc, exp); | |
| 3212 } | |
| 3213 else | |
| 3214 { | |
| 3215 if (token.value != TOKidentifier) | |
| 3216 { error("Identifier expected following goto"); | |
| 3217 ident = NULL; | |
| 3218 } | |
| 3219 else | |
| 3220 { ident = token.ident; | |
| 3221 nextToken(); | |
| 3222 } | |
| 3223 s = new GotoStatement(loc, ident); | |
| 3224 } | |
| 3225 check(TOKsemicolon, "goto statement"); | |
| 3226 break; | |
| 3227 } | |
| 3228 | |
| 3229 case TOKsynchronized: | |
| 3230 { Expression *exp; | |
| 3231 Statement *body; | |
| 3232 | |
| 3233 nextToken(); | |
| 3234 if (token.value == TOKlparen) | |
| 3235 { | |
| 3236 nextToken(); | |
| 3237 exp = parseExpression(); | |
| 3238 check(TOKrparen); | |
| 3239 } | |
| 3240 else | |
| 3241 exp = NULL; | |
| 3242 body = parseStatement(PSscope); | |
| 3243 s = new SynchronizedStatement(loc, exp, body); | |
| 3244 break; | |
| 3245 } | |
| 3246 | |
| 3247 case TOKwith: | |
| 3248 { Expression *exp; | |
| 3249 Statement *body; | |
| 3250 | |
| 3251 nextToken(); | |
| 3252 check(TOKlparen); | |
| 3253 exp = parseExpression(); | |
| 3254 check(TOKrparen); | |
| 3255 body = parseStatement(PSscope); | |
| 3256 s = new WithStatement(loc, exp, body); | |
| 3257 break; | |
| 3258 } | |
| 3259 | |
| 3260 case TOKtry: | |
| 3261 { Statement *body; | |
| 3262 Array *catches = NULL; | |
| 3263 Statement *finalbody = NULL; | |
| 3264 | |
| 3265 nextToken(); | |
| 3266 body = parseStatement(PSscope); | |
| 3267 while (token.value == TOKcatch) | |
| 3268 { | |
| 3269 Statement *handler; | |
| 3270 Catch *c; | |
| 3271 Type *t; | |
| 3272 Identifier *id; | |
| 3273 Loc loc = this->loc; | |
| 3274 | |
| 3275 nextToken(); | |
| 3276 if (token.value == TOKlcurly) | |
| 3277 { | |
| 3278 t = NULL; | |
| 3279 id = NULL; | |
| 3280 } | |
| 3281 else | |
| 3282 { | |
| 3283 check(TOKlparen); | |
| 3284 t = parseBasicType(); | |
| 3285 id = NULL; | |
| 3286 t = parseDeclarator(t, &id); | |
| 3287 check(TOKrparen); | |
| 3288 } | |
| 3289 handler = parseStatement(0); | |
| 3290 c = new Catch(loc, t, id, handler); | |
| 3291 if (!catches) | |
| 3292 catches = new Array(); | |
| 3293 catches->push(c); | |
| 3294 } | |
| 3295 | |
| 3296 if (token.value == TOKfinally) | |
| 3297 { nextToken(); | |
| 3298 finalbody = parseStatement(0); | |
| 3299 } | |
| 3300 | |
| 3301 s = body; | |
| 3302 if (!catches && !finalbody) | |
| 3303 error("catch or finally expected following try"); | |
| 3304 else | |
| 3305 { if (catches) | |
| 3306 s = new TryCatchStatement(loc, body, catches); | |
| 3307 if (finalbody) | |
| 3308 s = new TryFinallyStatement(loc, s, finalbody); | |
| 3309 } | |
| 3310 break; | |
| 3311 } | |
| 3312 | |
| 3313 case TOKthrow: | |
| 3314 { Expression *exp; | |
| 3315 | |
| 3316 nextToken(); | |
| 3317 exp = parseExpression(); | |
| 3318 check(TOKsemicolon, "throw statement"); | |
| 3319 s = new ThrowStatement(loc, exp); | |
| 3320 break; | |
| 3321 } | |
| 3322 | |
| 3323 case TOKvolatile: | |
| 3324 nextToken(); | |
| 3325 s = parseStatement(PSsemi | PScurlyscope); | |
| 3326 #if DMDV2 | |
| 3327 if (!global.params.useDeprecated) | |
| 3328 error("volatile statements deprecated; used synchronized statements instead"); | |
| 3329 #endif | |
| 3330 s = new VolatileStatement(loc, s); | |
| 3331 break; | |
| 3332 | |
| 3333 case TOKasm: | |
| 3334 { Statements *statements; | |
| 3335 Identifier *label; | |
| 3336 Loc labelloc; | |
| 3337 Token *toklist; | |
| 3338 Token **ptoklist; | |
| 3339 | |
| 3340 // Parse the asm block into a sequence of AsmStatements, | |
| 3341 // each AsmStatement is one instruction. | |
| 3342 // Separate out labels. | |
| 3343 // Defer parsing of AsmStatements until semantic processing. | |
| 3344 | |
| 3345 nextToken(); | |
| 3346 check(TOKlcurly); | |
| 3347 toklist = NULL; | |
| 3348 ptoklist = &toklist; | |
| 3349 label = NULL; | |
| 3350 statements = new Statements(); | |
| 3351 while (1) | |
| 3352 { | |
| 3353 switch (token.value) | |
| 3354 { | |
| 3355 case TOKidentifier: | |
| 3356 if (!toklist) | |
| 3357 { | |
| 3358 // Look ahead to see if it is a label | |
| 3359 t = peek(&token); | |
| 3360 if (t->value == TOKcolon) | |
| 3361 { // It's a label | |
| 3362 label = token.ident; | |
| 3363 labelloc = this->loc; | |
| 3364 nextToken(); | |
| 3365 nextToken(); | |
| 3366 continue; | |
| 3367 } | |
| 3368 } | |
| 3369 goto Ldefault; | |
| 3370 | |
| 3371 case TOKrcurly: | |
| 3372 if (toklist || label) | |
| 3373 { | |
| 3374 error("asm statements must end in ';'"); | |
| 3375 } | |
| 3376 break; | |
| 3377 | |
| 3378 case TOKsemicolon: | |
| 3379 s = NULL; | |
| 3380 if (toklist || label) | |
| 3381 { // Create AsmStatement from list of tokens we've saved | |
| 3382 s = new AsmStatement(this->loc, toklist); | |
| 3383 toklist = NULL; | |
| 3384 ptoklist = &toklist; | |
| 3385 if (label) | |
| 3386 { s = new LabelStatement(labelloc, label, s); | |
| 3387 label = NULL; | |
| 3388 } | |
| 3389 statements->push(s); | |
| 3390 } | |
| 3391 nextToken(); | |
| 3392 continue; | |
| 3393 | |
| 3394 case TOKeof: | |
| 3395 /* { */ | |
| 3396 error("matching '}' expected, not end of file"); | |
| 3397 break; | |
| 3398 | |
| 3399 default: | |
| 3400 Ldefault: | |
| 3401 *ptoklist = new Token(); | |
| 3402 memcpy(*ptoklist, &token, sizeof(Token)); | |
| 3403 ptoklist = &(*ptoklist)->next; | |
| 3404 *ptoklist = NULL; | |
| 3405 | |
| 3406 nextToken(); | |
| 3407 continue; | |
| 3408 } | |
| 3409 break; | |
| 3410 } | |
| 3411 s = new AsmBlockStatement(loc, statements); | |
| 3412 nextToken(); | |
| 3413 break; | |
| 3414 } | |
| 3415 | |
| 3416 default: | |
| 3417 error("found '%s' instead of statement", token.toChars()); | |
| 3418 goto Lerror; | |
| 3419 | |
| 3420 Lerror: | |
| 3421 while (token.value != TOKrcurly && | |
| 3422 token.value != TOKsemicolon && | |
| 3423 token.value != TOKeof) | |
| 3424 nextToken(); | |
| 3425 if (token.value == TOKsemicolon) | |
| 3426 nextToken(); | |
| 3427 s = NULL; | |
| 3428 break; | |
| 3429 } | |
| 3430 | |
| 3431 return s; | |
| 3432 } | |
| 3433 | |
| 3434 void Parser::check(enum TOK value) | |
| 3435 { | |
| 3436 check(loc, value); | |
| 3437 } | |
| 3438 | |
| 3439 void Parser::check(Loc loc, enum TOK value) | |
| 3440 { | |
| 3441 if (token.value != value) | |
| 3442 error(loc, "found '%s' when expecting '%s'", token.toChars(), Token::toChars(value)); | |
| 3443 nextToken(); | |
| 3444 } | |
| 3445 | |
| 3446 void Parser::check(enum TOK value, char *string) | |
| 3447 { | |
| 3448 if (token.value != value) | |
| 3449 error("found '%s' when expecting '%s' following '%s'", | |
| 3450 token.toChars(), Token::toChars(value), string); | |
| 3451 nextToken(); | |
| 3452 } | |
| 3453 | |
| 3454 /************************************ | |
| 3455 * Determine if the scanner is sitting on the start of a declaration. | |
| 3456 * Input: | |
| 3457 * needId 0 no identifier | |
| 3458 * 1 identifier optional | |
| 3459 * 2 must have identifier | |
| 3460 */ | |
| 3461 | |
| 3462 int Parser::isDeclaration(Token *t, int needId, enum TOK endtok, Token **pt) | |
| 3463 { | |
| 3464 int haveId = 0; | |
| 3465 | |
| 3466 #if DMDV2 | |
| 3467 if ((t->value == TOKconst || t->value == TOKinvariant) && | |
| 3468 peek(t)->value != TOKlparen) | |
| 3469 { /* const type | |
| 3470 * invariant type | |
| 3471 */ | |
| 3472 t = peek(t); | |
| 3473 } | |
| 3474 #endif | |
| 3475 | |
| 3476 if (!isBasicType(&t)) | |
| 3477 return FALSE; | |
| 3478 if (!isDeclarator(&t, &haveId, endtok)) | |
| 3479 return FALSE; | |
| 3480 if ( needId == 1 || | |
| 3481 (needId == 0 && !haveId) || | |
| 3482 (needId == 2 && haveId)) | |
| 3483 { if (pt) | |
| 3484 *pt = t; | |
| 3485 return TRUE; | |
| 3486 } | |
| 3487 else | |
| 3488 return FALSE; | |
| 3489 } | |
| 3490 | |
| 3491 int Parser::isBasicType(Token **pt) | |
| 3492 { | |
| 3493 // This code parallels parseBasicType() | |
| 3494 Token *t = *pt; | |
| 3495 Token *t2; | |
| 3496 int parens; | |
| 3497 | |
| 3498 switch (t->value) | |
| 3499 { | |
| 3500 CASE_BASIC_TYPES: | |
| 3501 t = peek(t); | |
| 3502 break; | |
| 3503 | |
| 3504 case TOKidentifier: | |
| 3505 t = peek(t); | |
| 3506 if (t->value == TOKnot) | |
| 3507 { | |
| 3508 goto L4; | |
| 3509 } | |
| 3510 goto L3; | |
| 3511 while (1) | |
| 3512 { | |
| 3513 L2: | |
| 3514 t = peek(t); | |
| 3515 L3: | |
| 3516 if (t->value == TOKdot) | |
| 3517 { | |
| 3518 Ldot: | |
| 3519 t = peek(t); | |
| 3520 if (t->value != TOKidentifier) | |
| 3521 goto Lfalse; | |
| 3522 t = peek(t); | |
| 3523 if (t->value != TOKnot) | |
| 3524 goto L3; | |
| 3525 L4: | |
| 3526 t = peek(t); | |
| 3527 if (t->value != TOKlparen) | |
| 3528 goto Lfalse; | |
| 3529 if (!skipParens(t, &t)) | |
| 3530 goto Lfalse; | |
| 3531 } | |
| 3532 else | |
| 3533 break; | |
| 3534 } | |
| 3535 break; | |
| 3536 | |
| 3537 case TOKdot: | |
| 3538 goto Ldot; | |
| 3539 | |
| 3540 case TOKtypeof: | |
| 3541 /* typeof(exp).identifier... | |
| 3542 */ | |
| 3543 t = peek(t); | |
| 3544 if (t->value != TOKlparen) | |
| 3545 goto Lfalse; | |
| 3546 if (!skipParens(t, &t)) | |
| 3547 goto Lfalse; | |
| 3548 goto L2; | |
| 3549 | |
| 3550 default: | |
| 3551 goto Lfalse; | |
| 3552 } | |
| 3553 *pt = t; | |
| 3554 return TRUE; | |
| 3555 | |
| 3556 Lfalse: | |
| 3557 return FALSE; | |
| 3558 } | |
| 3559 | |
| 3560 int Parser::isDeclarator(Token **pt, int *haveId, enum TOK endtok) | |
| 3561 { // This code parallels parseDeclarator() | |
| 3562 Token *t = *pt; | |
| 3563 int parens; | |
| 3564 | |
| 3565 //printf("Parser::isDeclarator()\n"); | |
| 3566 //t->print(); | |
| 3567 if (t->value == TOKassign) | |
| 3568 return FALSE; | |
| 3569 | |
| 3570 while (1) | |
| 3571 { | |
| 3572 parens = FALSE; | |
| 3573 switch (t->value) | |
| 3574 { | |
| 3575 case TOKmul: | |
|
717
a26b0c5d5942
Merged DMD 1.036.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
710
diff
changeset
|
3576 //case TOKand: |
| 336 | 3577 t = peek(t); |
| 3578 continue; | |
| 3579 | |
| 3580 case TOKlbracket: | |
| 3581 t = peek(t); | |
| 3582 if (t->value == TOKrbracket) | |
| 3583 { | |
| 3584 t = peek(t); | |
| 3585 } | |
| 3586 else if (isDeclaration(t, 0, TOKrbracket, &t)) | |
| 3587 { // It's an associative array declaration | |
| 3588 t = peek(t); | |
| 3589 } | |
| 3590 else | |
| 3591 { | |
| 3592 // [ expression ] | |
| 3593 // [ expression .. expression ] | |
| 3594 if (!isExpression(&t)) | |
| 3595 return FALSE; | |
| 3596 if (t->value == TOKslice) | |
| 3597 { t = peek(t); | |
| 3598 if (!isExpression(&t)) | |
| 3599 return FALSE; | |
| 3600 } | |
| 3601 if (t->value != TOKrbracket) | |
| 3602 return FALSE; | |
| 3603 t = peek(t); | |
| 3604 } | |
| 3605 continue; | |
| 3606 | |
| 3607 case TOKidentifier: | |
| 3608 if (*haveId) | |
| 3609 return FALSE; | |
| 3610 *haveId = TRUE; | |
| 3611 t = peek(t); | |
| 3612 break; | |
| 3613 | |
| 3614 case TOKlparen: | |
| 3615 t = peek(t); | |
| 3616 | |
| 3617 if (t->value == TOKrparen) | |
| 3618 return FALSE; // () is not a declarator | |
| 3619 | |
| 3620 /* Regard ( identifier ) as not a declarator | |
| 3621 * BUG: what about ( *identifier ) in | |
| 3622 * f(*p)(x); | |
| 3623 * where f is a class instance with overloaded () ? | |
| 3624 * Should we just disallow C-style function pointer declarations? | |
| 3625 */ | |
| 3626 if (t->value == TOKidentifier) | |
| 3627 { Token *t2 = peek(t); | |
| 3628 if (t2->value == TOKrparen) | |
| 3629 return FALSE; | |
| 3630 } | |
| 3631 | |
| 3632 | |
| 3633 if (!isDeclarator(&t, haveId, TOKrparen)) | |
| 3634 return FALSE; | |
| 3635 t = peek(t); | |
| 3636 parens = TRUE; | |
| 3637 break; | |
| 3638 | |
| 3639 case TOKdelegate: | |
| 3640 case TOKfunction: | |
| 3641 t = peek(t); | |
| 3642 if (!isParameters(&t)) | |
| 3643 return FALSE; | |
| 3644 continue; | |
| 3645 } | |
| 3646 break; | |
| 3647 } | |
| 3648 | |
| 3649 while (1) | |
| 3650 { | |
| 3651 switch (t->value) | |
| 3652 { | |
| 3653 #if CARRAYDECL | |
| 3654 case TOKlbracket: | |
| 3655 parens = FALSE; | |
| 3656 t = peek(t); | |
| 3657 if (t->value == TOKrbracket) | |
| 3658 { | |
| 3659 t = peek(t); | |
| 3660 } | |
| 3661 else if (isDeclaration(t, 0, TOKrbracket, &t)) | |
| 3662 { // It's an associative array declaration | |
| 3663 t = peek(t); | |
| 3664 } | |
| 3665 else | |
| 3666 { | |
| 3667 // [ expression ] | |
| 3668 if (!isExpression(&t)) | |
| 3669 return FALSE; | |
| 3670 if (t->value != TOKrbracket) | |
| 3671 return FALSE; | |
| 3672 t = peek(t); | |
| 3673 } | |
| 3674 continue; | |
| 3675 #endif | |
| 3676 | |
| 3677 case TOKlparen: | |
| 3678 parens = FALSE; | |
| 3679 if (!isParameters(&t)) | |
| 3680 return FALSE; | |
| 3681 continue; | |
| 3682 | |
| 3683 // Valid tokens that follow a declaration | |
| 3684 case TOKrparen: | |
| 3685 case TOKrbracket: | |
| 3686 case TOKassign: | |
| 3687 case TOKcomma: | |
| 3688 case TOKsemicolon: | |
| 3689 case TOKlcurly: | |
| 3690 case TOKin: | |
| 3691 // The !parens is to disallow unnecessary parentheses | |
| 3692 if (!parens && (endtok == TOKreserved || endtok == t->value)) | |
| 3693 { *pt = t; | |
| 3694 return TRUE; | |
| 3695 } | |
| 3696 return FALSE; | |
| 3697 | |
| 3698 default: | |
| 3699 return FALSE; | |
| 3700 } | |
| 3701 } | |
| 3702 } | |
| 3703 | |
| 3704 | |
| 3705 int Parser::isParameters(Token **pt) | |
| 3706 { // This code parallels parseParameters() | |
| 3707 Token *t = *pt; | |
| 3708 int tmp; | |
| 3709 | |
| 3710 //printf("isParameters()\n"); | |
| 3711 if (t->value != TOKlparen) | |
| 3712 return FALSE; | |
| 3713 | |
| 3714 t = peek(t); | |
| 3715 while (1) | |
| 3716 { | |
| 3717 switch (t->value) | |
| 3718 { | |
| 3719 case TOKrparen: | |
| 3720 break; | |
| 3721 | |
| 3722 case TOKdotdotdot: | |
| 3723 t = peek(t); | |
| 3724 break; | |
| 3725 | |
| 3726 case TOKin: | |
| 3727 case TOKout: | |
| 3728 case TOKinout: | |
| 3729 case TOKref: | |
| 3730 case TOKlazy: | |
| 3731 t = peek(t); | |
| 3732 default: | |
| 3733 if (!isBasicType(&t)) | |
| 3734 return FALSE; | |
| 3735 tmp = FALSE; | |
| 3736 if (t->value != TOKdotdotdot && | |
| 3737 !isDeclarator(&t, &tmp, TOKreserved)) | |
| 3738 return FALSE; | |
| 3739 if (t->value == TOKassign) | |
| 3740 { t = peek(t); | |
| 3741 if (!isExpression(&t)) | |
| 3742 return FALSE; | |
| 3743 } | |
| 3744 if (t->value == TOKdotdotdot) | |
| 3745 { | |
| 3746 t = peek(t); | |
| 3747 break; | |
| 3748 } | |
| 3749 if (t->value == TOKcomma) | |
| 3750 { t = peek(t); | |
| 3751 continue; | |
| 3752 } | |
| 3753 break; | |
| 3754 } | |
| 3755 break; | |
| 3756 } | |
| 3757 if (t->value != TOKrparen) | |
| 3758 return FALSE; | |
| 3759 t = peek(t); | |
| 3760 *pt = t; | |
| 3761 return TRUE; | |
| 3762 } | |
| 3763 | |
| 3764 int Parser::isExpression(Token **pt) | |
| 3765 { | |
| 3766 // This is supposed to determine if something is an expression. | |
| 3767 // What it actually does is scan until a closing right bracket | |
| 3768 // is found. | |
| 3769 | |
| 3770 Token *t = *pt; | |
| 3771 int brnest = 0; | |
| 3772 int panest = 0; | |
| 3773 | |
| 3774 for (;; t = peek(t)) | |
| 3775 { | |
| 3776 switch (t->value) | |
| 3777 { | |
| 3778 case TOKlbracket: | |
| 3779 brnest++; | |
| 3780 continue; | |
| 3781 | |
| 3782 case TOKrbracket: | |
| 3783 if (--brnest >= 0) | |
| 3784 continue; | |
| 3785 break; | |
| 3786 | |
| 3787 case TOKlparen: | |
| 3788 panest++; | |
| 3789 continue; | |
| 3790 | |
| 3791 case TOKcomma: | |
| 3792 if (brnest || panest) | |
| 3793 continue; | |
| 3794 break; | |
| 3795 | |
| 3796 case TOKrparen: | |
| 3797 if (--panest >= 0) | |
| 3798 continue; | |
| 3799 break; | |
| 3800 | |
| 3801 case TOKslice: | |
| 3802 if (brnest) | |
| 3803 continue; | |
| 3804 break; | |
| 3805 | |
| 3806 case TOKeof: | |
| 3807 return FALSE; | |
| 3808 | |
| 3809 default: | |
| 3810 continue; | |
| 3811 } | |
| 3812 break; | |
| 3813 } | |
| 3814 | |
| 3815 *pt = t; | |
| 3816 return TRUE; | |
| 3817 } | |
| 3818 | |
| 3819 /********************************************** | |
| 3820 * Skip over | |
| 3821 * instance foo.bar(parameters...) | |
| 3822 * Output: | |
| 3823 * if (pt), *pt is set to the token following the closing ) | |
| 3824 * Returns: | |
| 3825 * 1 it's valid instance syntax | |
| 3826 * 0 invalid instance syntax | |
| 3827 */ | |
| 3828 | |
| 3829 int Parser::isTemplateInstance(Token *t, Token **pt) | |
| 3830 { | |
| 3831 t = peek(t); | |
| 3832 if (t->value != TOKdot) | |
| 3833 { | |
| 3834 if (t->value != TOKidentifier) | |
| 3835 goto Lfalse; | |
| 3836 t = peek(t); | |
| 3837 } | |
| 3838 while (t->value == TOKdot) | |
| 3839 { | |
| 3840 t = peek(t); | |
| 3841 if (t->value != TOKidentifier) | |
| 3842 goto Lfalse; | |
| 3843 t = peek(t); | |
| 3844 } | |
| 3845 if (t->value != TOKlparen) | |
| 3846 goto Lfalse; | |
| 3847 | |
| 3848 // Skip over the template arguments | |
| 3849 while (1) | |
| 3850 { | |
| 3851 while (1) | |
| 3852 { | |
| 3853 t = peek(t); | |
| 3854 switch (t->value) | |
| 3855 { | |
| 3856 case TOKlparen: | |
| 3857 if (!skipParens(t, &t)) | |
| 3858 goto Lfalse; | |
| 3859 continue; | |
| 3860 case TOKrparen: | |
| 3861 break; | |
| 3862 case TOKcomma: | |
| 3863 break; | |
| 3864 case TOKeof: | |
| 3865 case TOKsemicolon: | |
| 3866 goto Lfalse; | |
| 3867 default: | |
| 3868 continue; | |
| 3869 } | |
| 3870 break; | |
| 3871 } | |
| 3872 | |
| 3873 if (t->value != TOKcomma) | |
| 3874 break; | |
| 3875 } | |
| 3876 if (t->value != TOKrparen) | |
| 3877 goto Lfalse; | |
| 3878 t = peek(t); | |
| 3879 if (pt) | |
| 3880 *pt = t; | |
| 3881 return 1; | |
| 3882 | |
| 3883 Lfalse: | |
| 3884 return 0; | |
| 3885 } | |
| 3886 | |
| 3887 /******************************************* | |
| 3888 * Skip parens, brackets. | |
| 3889 * Input: | |
| 3890 * t is on opening ( | |
| 3891 * Output: | |
| 3892 * *pt is set to closing token, which is ')' on success | |
| 3893 * Returns: | |
| 3894 * !=0 successful | |
| 3895 * 0 some parsing error | |
| 3896 */ | |
| 3897 | |
| 3898 int Parser::skipParens(Token *t, Token **pt) | |
| 3899 { | |
| 3900 int parens = 0; | |
| 3901 | |
| 3902 while (1) | |
| 3903 { | |
| 3904 switch (t->value) | |
| 3905 { | |
| 3906 case TOKlparen: | |
| 3907 parens++; | |
| 3908 break; | |
| 3909 | |
| 3910 case TOKrparen: | |
| 3911 parens--; | |
| 3912 if (parens < 0) | |
| 3913 goto Lfalse; | |
| 3914 if (parens == 0) | |
| 3915 goto Ldone; | |
| 3916 break; | |
| 3917 | |
| 3918 case TOKeof: | |
| 3919 case TOKsemicolon: | |
| 3920 goto Lfalse; | |
| 3921 | |
| 3922 default: | |
| 3923 break; | |
| 3924 } | |
| 3925 t = peek(t); | |
| 3926 } | |
| 3927 | |
| 3928 Ldone: | |
| 3929 if (*pt) | |
| 3930 *pt = t; | |
| 3931 return 1; | |
| 3932 | |
| 3933 Lfalse: | |
| 3934 return 0; | |
| 3935 } | |
| 3936 | |
| 3937 /********************************* Expression Parser ***************************/ | |
| 3938 | |
| 3939 Expression *Parser::parsePrimaryExp() | |
| 3940 { Expression *e; | |
| 3941 Type *t; | |
| 3942 Identifier *id; | |
| 3943 enum TOK save; | |
| 3944 Loc loc = this->loc; | |
| 3945 | |
| 3946 //printf("parsePrimaryExp(): loc = %d\n", loc.linnum); | |
| 3947 switch (token.value) | |
| 3948 { | |
| 3949 case TOKidentifier: | |
| 3950 id = token.ident; | |
| 3951 nextToken(); | |
| 3952 if (token.value == TOKnot && peek(&token)->value == TOKlparen) | |
| 3953 { // identifier!(template-argument-list) | |
| 3954 TemplateInstance *tempinst; | |
| 3955 | |
| 3956 tempinst = new TemplateInstance(loc, id); | |
| 3957 nextToken(); | |
| 3958 tempinst->tiargs = parseTemplateArgumentList(); | |
| 3959 e = new ScopeExp(loc, tempinst); | |
| 3960 } | |
| 3961 else | |
| 3962 e = new IdentifierExp(loc, id); | |
| 3963 break; | |
| 3964 | |
| 3965 case TOKdollar: | |
| 3966 if (!inBrackets) | |
| 3967 error("'$' is valid only inside [] of index or slice"); | |
| 3968 e = new DollarExp(loc); | |
| 3969 nextToken(); | |
| 3970 break; | |
| 3971 | |
| 3972 case TOKdot: | |
| 3973 // Signal global scope '.' operator with "" identifier | |
| 3974 e = new IdentifierExp(loc, Id::empty); | |
| 3975 break; | |
| 3976 | |
| 3977 case TOKthis: | |
| 3978 e = new ThisExp(loc); | |
| 3979 nextToken(); | |
| 3980 break; | |
| 3981 | |
| 3982 case TOKsuper: | |
| 3983 e = new SuperExp(loc); | |
| 3984 nextToken(); | |
| 3985 break; | |
| 3986 | |
| 3987 case TOKint32v: | |
| 3988 e = new IntegerExp(loc, token.int32value, Type::tint32); | |
| 3989 nextToken(); | |
| 3990 break; | |
| 3991 | |
| 3992 case TOKuns32v: | |
| 3993 e = new IntegerExp(loc, token.uns32value, Type::tuns32); | |
| 3994 nextToken(); | |
| 3995 break; | |
| 3996 | |
| 3997 case TOKint64v: | |
| 3998 e = new IntegerExp(loc, token.int64value, Type::tint64); | |
| 3999 nextToken(); | |
| 4000 break; | |
| 4001 | |
| 4002 case TOKuns64v: | |
| 4003 e = new IntegerExp(loc, token.uns64value, Type::tuns64); | |
| 4004 nextToken(); | |
| 4005 break; | |
| 4006 | |
| 4007 case TOKfloat32v: | |
| 4008 e = new RealExp(loc, token.float80value, Type::tfloat32); | |
| 4009 nextToken(); | |
| 4010 break; | |
| 4011 | |
| 4012 case TOKfloat64v: | |
| 4013 e = new RealExp(loc, token.float80value, Type::tfloat64); | |
| 4014 nextToken(); | |
| 4015 break; | |
| 4016 | |
| 4017 case TOKfloat80v: | |
| 4018 e = new RealExp(loc, token.float80value, Type::tfloat80); | |
| 4019 nextToken(); | |
| 4020 break; | |
| 4021 | |
| 4022 case TOKimaginary32v: | |
| 4023 e = new RealExp(loc, token.float80value, Type::timaginary32); | |
| 4024 nextToken(); | |
| 4025 break; | |
| 4026 | |
| 4027 case TOKimaginary64v: | |
| 4028 e = new RealExp(loc, token.float80value, Type::timaginary64); | |
| 4029 nextToken(); | |
| 4030 break; | |
| 4031 | |
| 4032 case TOKimaginary80v: | |
| 4033 e = new RealExp(loc, token.float80value, Type::timaginary80); | |
| 4034 nextToken(); | |
| 4035 break; | |
| 4036 | |
| 4037 case TOKnull: | |
| 4038 e = new NullExp(loc); | |
| 4039 nextToken(); | |
| 4040 break; | |
| 4041 | |
| 4042 #if DMDV2 | |
| 4043 case TOKfile: | |
| 4044 { char *s = loc.filename ? loc.filename : mod->ident->toChars(); | |
| 4045 e = new StringExp(loc, s, strlen(s), 0); | |
| 4046 nextToken(); | |
| 4047 break; | |
| 4048 } | |
| 4049 | |
| 4050 case TOKline: | |
| 4051 e = new IntegerExp(loc, loc.linnum, Type::tint32); | |
| 4052 nextToken(); | |
| 4053 break; | |
| 4054 #endif | |
| 4055 | |
| 4056 case TOKtrue: | |
| 4057 e = new IntegerExp(loc, 1, Type::tbool); | |
| 4058 nextToken(); | |
| 4059 break; | |
| 4060 | |
| 4061 case TOKfalse: | |
| 4062 e = new IntegerExp(loc, 0, Type::tbool); | |
| 4063 nextToken(); | |
| 4064 break; | |
| 4065 | |
| 4066 case TOKcharv: | |
| 4067 e = new IntegerExp(loc, token.uns32value, Type::tchar); | |
| 4068 nextToken(); | |
| 4069 break; | |
| 4070 | |
| 4071 case TOKwcharv: | |
| 4072 e = new IntegerExp(loc, token.uns32value, Type::twchar); | |
| 4073 nextToken(); | |
| 4074 break; | |
| 4075 | |
| 4076 case TOKdcharv: | |
| 4077 e = new IntegerExp(loc, token.uns32value, Type::tdchar); | |
| 4078 nextToken(); | |
| 4079 break; | |
| 4080 | |
| 4081 case TOKstring: | |
| 4082 { unsigned char *s; | |
| 4083 unsigned len; | |
| 4084 unsigned char postfix; | |
| 4085 | |
| 4086 // cat adjacent strings | |
| 4087 s = token.ustring; | |
| 4088 len = token.len; | |
| 4089 postfix = token.postfix; | |
| 4090 while (1) | |
| 4091 { | |
| 4092 nextToken(); | |
| 4093 if (token.value == TOKstring) | |
| 4094 { unsigned len1; | |
| 4095 unsigned len2; | |
| 4096 unsigned char *s2; | |
| 4097 | |
| 4098 if (token.postfix) | |
| 4099 { if (token.postfix != postfix) | |
| 4100 error("mismatched string literal postfixes '%c' and '%c'", postfix, token.postfix); | |
| 4101 postfix = token.postfix; | |
| 4102 } | |
| 4103 | |
| 4104 len1 = len; | |
| 4105 len2 = token.len; | |
| 4106 len = len1 + len2; | |
| 4107 s2 = (unsigned char *)mem.malloc((len + 1) * sizeof(unsigned char)); | |
| 4108 memcpy(s2, s, len1 * sizeof(unsigned char)); | |
| 4109 memcpy(s2 + len1, token.ustring, (len2 + 1) * sizeof(unsigned char)); | |
| 4110 s = s2; | |
| 4111 } | |
| 4112 else | |
| 4113 break; | |
| 4114 } | |
| 4115 e = new StringExp(loc, s, len, postfix); | |
| 4116 break; | |
| 4117 } | |
| 4118 | |
| 4119 CASE_BASIC_TYPES_X(t): | |
| 4120 nextToken(); | |
| 4121 L1: | |
| 4122 check(TOKdot, t->toChars()); | |
| 4123 if (token.value != TOKidentifier) | |
| 4124 { error("found '%s' when expecting identifier following '%s.'", token.toChars(), t->toChars()); | |
| 4125 goto Lerr; | |
| 4126 } | |
| 4127 e = new TypeDotIdExp(loc, t, token.ident); | |
| 4128 nextToken(); | |
| 4129 break; | |
| 4130 | |
| 4131 case TOKtypeof: | |
| 4132 { Expression *exp; | |
| 4133 | |
| 4134 nextToken(); | |
| 4135 check(TOKlparen); | |
| 4136 exp = parseExpression(); | |
| 4137 check(TOKrparen); | |
| 4138 t = new TypeTypeof(loc, exp); | |
| 4139 e = new TypeExp(loc, t); | |
| 4140 break; | |
| 4141 } | |
| 4142 | |
| 4143 case TOKtypeid: | |
| 4144 { Type *t; | |
| 4145 | |
| 4146 nextToken(); | |
| 4147 check(TOKlparen, "typeid"); | |
| 4148 t = parseBasicType(); | |
| 4149 t = parseDeclarator(t,NULL); // ( type ) | |
| 4150 check(TOKrparen); | |
| 4151 e = new TypeidExp(loc, t); | |
| 4152 break; | |
| 4153 } | |
| 4154 | |
| 4155 #if DMDV2 | |
| 4156 case TOKtraits: | |
| 4157 { /* __traits(identifier, args...) | |
| 4158 */ | |
| 4159 Identifier *ident; | |
| 4160 Objects *args = NULL; | |
| 4161 | |
| 4162 nextToken(); | |
| 4163 check(TOKlparen); | |
| 4164 if (token.value != TOKidentifier) | |
| 4165 { error("__traits(identifier, args...) expected"); | |
| 4166 goto Lerr; | |
| 4167 } | |
| 4168 ident = token.ident; | |
| 4169 nextToken(); | |
| 4170 if (token.value == TOKcomma) | |
| 4171 args = parseTemplateArgumentList2(); // __traits(identifier, args...) | |
| 4172 else | |
| 4173 check(TOKrparen); // __traits(identifier) | |
| 4174 | |
| 4175 e = new TraitsExp(loc, ident, args); | |
| 4176 break; | |
| 4177 } | |
| 4178 #endif | |
| 4179 | |
| 4180 case TOKis: | |
| 4181 { Type *targ; | |
| 4182 Identifier *ident = NULL; | |
| 4183 Type *tspec = NULL; | |
| 4184 enum TOK tok = TOKreserved; | |
| 4185 enum TOK tok2 = TOKreserved; | |
| 4186 Loc loc = this->loc; | |
| 4187 | |
| 4188 nextToken(); | |
| 4189 if (token.value == TOKlparen) | |
| 4190 { | |
| 4191 nextToken(); | |
| 4192 targ = parseBasicType(); | |
| 4193 targ = parseDeclarator(targ, &ident); | |
| 4194 if (token.value == TOKcolon || token.value == TOKequal) | |
| 4195 { | |
| 4196 tok = token.value; | |
| 4197 nextToken(); | |
| 4198 if (tok == TOKequal && | |
| 4199 (token.value == TOKtypedef || | |
| 4200 token.value == TOKstruct || | |
| 4201 token.value == TOKunion || | |
| 4202 token.value == TOKclass || | |
| 4203 token.value == TOKsuper || | |
| 4204 token.value == TOKenum || | |
| 4205 token.value == TOKinterface || | |
| 4206 token.value == TOKfunction || | |
| 4207 token.value == TOKdelegate || | |
| 4208 token.value == TOKreturn)) | |
| 4209 { | |
| 4210 tok2 = token.value; | |
| 4211 nextToken(); | |
| 4212 } | |
| 4213 else | |
| 4214 { | |
| 4215 tspec = parseBasicType(); | |
| 4216 tspec = parseDeclarator(tspec, NULL); | |
| 4217 } | |
| 4218 } | |
| 4219 check(TOKrparen); | |
| 4220 } | |
| 4221 else | |
| 4222 { error("(type identifier : specialization) expected following is"); | |
| 4223 goto Lerr; | |
| 4224 } | |
| 4225 e = new IsExp(loc, targ, ident, tok, tspec, tok2); | |
| 4226 break; | |
| 4227 } | |
| 4228 | |
| 4229 case TOKassert: | |
| 4230 { Expression *msg = NULL; | |
| 4231 | |
| 4232 nextToken(); | |
| 4233 check(TOKlparen, "assert"); | |
| 4234 e = parseAssignExp(); | |
| 4235 if (token.value == TOKcomma) | |
| 4236 { nextToken(); | |
| 4237 msg = parseAssignExp(); | |
| 4238 } | |
| 4239 check(TOKrparen); | |
| 4240 e = new AssertExp(loc, e, msg); | |
| 4241 break; | |
| 4242 } | |
| 4243 | |
| 4244 case TOKmixin: | |
| 4245 { | |
| 4246 nextToken(); | |
| 4247 check(TOKlparen, "mixin"); | |
| 4248 e = parseAssignExp(); | |
| 4249 check(TOKrparen); | |
| 4250 e = new CompileExp(loc, e); | |
| 4251 break; | |
| 4252 } | |
| 4253 | |
| 4254 case TOKimport: | |
| 4255 { | |
| 4256 nextToken(); | |
| 4257 check(TOKlparen, "import"); | |
| 4258 e = parseAssignExp(); | |
| 4259 check(TOKrparen); | |
| 4260 e = new FileExp(loc, e); | |
| 4261 break; | |
| 4262 } | |
| 4263 | |
| 4264 case TOKlparen: | |
| 4265 if (peekPastParen(&token)->value == TOKlcurly) | |
| 4266 { // (arguments) { statements... } | |
| 4267 save = TOKdelegate; | |
| 4268 goto case_delegate; | |
| 4269 } | |
| 4270 // ( expression ) | |
| 4271 nextToken(); | |
| 4272 e = parseExpression(); | |
| 4273 check(loc, TOKrparen); | |
| 4274 break; | |
| 4275 | |
| 4276 case TOKlbracket: | |
| 4277 { /* Parse array literals and associative array literals: | |
| 4278 * [ value, value, value ... ] | |
| 4279 * [ key:value, key:value, key:value ... ] | |
| 4280 */ | |
| 4281 Expressions *values = new Expressions(); | |
| 4282 Expressions *keys = NULL; | |
| 4283 | |
| 4284 nextToken(); | |
| 4285 if (token.value != TOKrbracket) | |
| 4286 { | |
|
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
4287 while (token.value != TOKeof) |
| 336 | 4288 { |
| 4289 Expression *e = parseAssignExp(); | |
| 4290 if (token.value == TOKcolon && (keys || values->dim == 0)) | |
| 4291 { nextToken(); | |
| 4292 if (!keys) | |
| 4293 keys = new Expressions(); | |
| 4294 keys->push(e); | |
| 4295 e = parseAssignExp(); | |
| 4296 } | |
| 4297 else if (keys) | |
| 4298 { error("'key:value' expected for associative array literal"); | |
| 4299 delete keys; | |
| 4300 keys = NULL; | |
| 4301 } | |
| 4302 values->push(e); | |
| 4303 if (token.value == TOKrbracket) | |
| 4304 break; | |
| 4305 check(TOKcomma); | |
| 4306 } | |
| 4307 } | |
| 4308 check(TOKrbracket); | |
| 4309 | |
| 4310 if (keys) | |
| 4311 e = new AssocArrayLiteralExp(loc, keys, values); | |
| 4312 else | |
| 4313 e = new ArrayLiteralExp(loc, values); | |
| 4314 break; | |
| 4315 } | |
| 4316 | |
| 4317 case TOKlcurly: | |
| 4318 // { statements... } | |
| 4319 save = TOKdelegate; | |
| 4320 goto case_delegate; | |
| 4321 | |
| 4322 case TOKfunction: | |
| 4323 case TOKdelegate: | |
| 4324 save = token.value; | |
| 4325 nextToken(); | |
| 4326 case_delegate: | |
| 4327 { | |
| 4328 /* function type(parameters) { body } | |
| 4329 * delegate type(parameters) { body } | |
| 4330 */ | |
| 4331 Arguments *arguments; | |
| 4332 int varargs; | |
| 4333 FuncLiteralDeclaration *fd; | |
| 4334 Type *t; | |
| 4335 | |
| 4336 if (token.value == TOKlcurly) | |
| 4337 { | |
| 4338 t = NULL; | |
| 4339 varargs = 0; | |
| 4340 arguments = new Arguments(); | |
| 4341 } | |
| 4342 else | |
| 4343 { | |
| 4344 if (token.value == TOKlparen) | |
| 4345 t = NULL; | |
| 4346 else | |
| 4347 { | |
| 4348 t = parseBasicType(); | |
| 4349 t = parseBasicType2(t); // function return type | |
| 4350 } | |
| 4351 arguments = parseParameters(&varargs); | |
| 4352 } | |
| 4353 t = new TypeFunction(arguments, t, varargs, linkage); | |
| 4354 fd = new FuncLiteralDeclaration(loc, 0, t, save, NULL); | |
| 4355 parseContracts(fd); | |
| 4356 e = new FuncExp(loc, fd); | |
| 4357 break; | |
| 4358 } | |
| 4359 | |
| 4360 default: | |
| 4361 error("expression expected, not '%s'", token.toChars()); | |
| 4362 Lerr: | |
| 4363 // Anything for e, as long as it's not NULL | |
| 4364 e = new IntegerExp(loc, 0, Type::tint32); | |
| 4365 nextToken(); | |
| 4366 break; | |
| 4367 } | |
| 4368 return parsePostExp(e); | |
| 4369 } | |
| 4370 | |
| 4371 Expression *Parser::parsePostExp(Expression *e) | |
| 4372 { | |
| 4373 Loc loc; | |
| 4374 | |
| 4375 while (1) | |
| 4376 { | |
| 4377 loc = this->loc; | |
| 4378 switch (token.value) | |
| 4379 { | |
| 4380 case TOKdot: | |
| 4381 nextToken(); | |
| 4382 if (token.value == TOKidentifier) | |
| 4383 { Identifier *id = token.ident; | |
| 4384 | |
| 4385 nextToken(); | |
| 4386 if (token.value == TOKnot && peek(&token)->value == TOKlparen) | |
| 4387 { // identifier!(template-argument-list) | |
| 4388 TemplateInstance *tempinst; | |
| 4389 | |
| 4390 tempinst = new TemplateInstance(loc, id); | |
| 4391 nextToken(); | |
| 4392 tempinst->tiargs = parseTemplateArgumentList(); | |
| 4393 e = new DotTemplateInstanceExp(loc, e, tempinst); | |
| 4394 } | |
| 4395 else | |
| 4396 e = new DotIdExp(loc, e, id); | |
| 4397 continue; | |
| 4398 } | |
| 4399 else if (token.value == TOKnew) | |
| 4400 { | |
| 4401 e = parseNewExp(e); | |
| 4402 continue; | |
| 4403 } | |
| 4404 else | |
| 4405 error("identifier expected following '.', not '%s'", token.toChars()); | |
| 4406 break; | |
| 4407 | |
| 4408 case TOKplusplus: | |
| 4409 e = new PostExp(TOKplusplus, loc, e); | |
| 4410 break; | |
| 4411 | |
| 4412 case TOKminusminus: | |
| 4413 e = new PostExp(TOKminusminus, loc, e); | |
| 4414 break; | |
| 4415 | |
| 4416 case TOKlparen: | |
| 4417 e = new CallExp(loc, e, parseArguments()); | |
| 4418 continue; | |
| 4419 | |
| 4420 case TOKlbracket: | |
| 4421 { // array dereferences: | |
| 4422 // array[index] | |
| 4423 // array[] | |
| 4424 // array[lwr .. upr] | |
| 4425 Expression *index; | |
| 4426 Expression *upr; | |
| 4427 | |
| 4428 inBrackets++; | |
| 4429 nextToken(); | |
| 4430 if (token.value == TOKrbracket) | |
| 4431 { // array[] | |
| 4432 e = new SliceExp(loc, e, NULL, NULL); | |
| 4433 nextToken(); | |
| 4434 } | |
| 4435 else | |
| 4436 { | |
| 4437 index = parseAssignExp(); | |
| 4438 if (token.value == TOKslice) | |
| 4439 { // array[lwr .. upr] | |
| 4440 nextToken(); | |
| 4441 upr = parseAssignExp(); | |
| 4442 e = new SliceExp(loc, e, index, upr); | |
| 4443 } | |
| 4444 else | |
| 4445 { // array[index, i2, i3, i4, ...] | |
| 4446 Expressions *arguments = new Expressions(); | |
| 4447 arguments->push(index); | |
| 4448 if (token.value == TOKcomma) | |
| 4449 { | |
| 4450 nextToken(); | |
| 4451 while (1) | |
| 4452 { Expression *arg; | |
| 4453 | |
| 4454 arg = parseAssignExp(); | |
| 4455 arguments->push(arg); | |
| 4456 if (token.value == TOKrbracket) | |
| 4457 break; | |
| 4458 check(TOKcomma); | |
| 4459 } | |
| 4460 } | |
| 4461 e = new ArrayExp(loc, e, arguments); | |
| 4462 } | |
| 4463 check(TOKrbracket); | |
| 4464 inBrackets--; | |
| 4465 } | |
| 4466 continue; | |
| 4467 } | |
| 4468 | |
| 4469 default: | |
| 4470 return e; | |
| 4471 } | |
| 4472 nextToken(); | |
| 4473 } | |
| 4474 } | |
| 4475 | |
| 4476 Expression *Parser::parseUnaryExp() | |
| 4477 { Expression *e; | |
| 4478 Loc loc = this->loc; | |
| 4479 | |
| 4480 switch (token.value) | |
| 4481 { | |
| 4482 case TOKand: | |
| 4483 nextToken(); | |
| 4484 e = parseUnaryExp(); | |
| 4485 e = new AddrExp(loc, e); | |
| 4486 break; | |
| 4487 | |
| 4488 case TOKplusplus: | |
| 4489 nextToken(); | |
| 4490 e = parseUnaryExp(); | |
| 4491 e = new AddAssignExp(loc, e, new IntegerExp(loc, 1, Type::tint32)); | |
| 4492 break; | |
| 4493 | |
| 4494 case TOKminusminus: | |
| 4495 nextToken(); | |
| 4496 e = parseUnaryExp(); | |
| 4497 e = new MinAssignExp(loc, e, new IntegerExp(loc, 1, Type::tint32)); | |
| 4498 break; | |
| 4499 | |
| 4500 case TOKmul: | |
| 4501 nextToken(); | |
| 4502 e = parseUnaryExp(); | |
| 4503 e = new PtrExp(loc, e); | |
| 4504 break; | |
| 4505 | |
| 4506 case TOKmin: | |
| 4507 nextToken(); | |
| 4508 e = parseUnaryExp(); | |
| 4509 e = new NegExp(loc, e); | |
| 4510 break; | |
| 4511 | |
| 4512 case TOKadd: | |
| 4513 nextToken(); | |
| 4514 e = parseUnaryExp(); | |
| 4515 e = new UAddExp(loc, e); | |
| 4516 break; | |
| 4517 | |
| 4518 case TOKnot: | |
| 4519 nextToken(); | |
| 4520 e = parseUnaryExp(); | |
| 4521 e = new NotExp(loc, e); | |
| 4522 break; | |
| 4523 | |
| 4524 case TOKtilde: | |
| 4525 nextToken(); | |
| 4526 e = parseUnaryExp(); | |
| 4527 e = new ComExp(loc, e); | |
| 4528 break; | |
| 4529 | |
| 4530 case TOKdelete: | |
| 4531 nextToken(); | |
| 4532 e = parseUnaryExp(); | |
| 4533 e = new DeleteExp(loc, e); | |
| 4534 break; | |
| 4535 | |
| 4536 case TOKnew: | |
| 4537 e = parseNewExp(NULL); | |
| 4538 break; | |
| 4539 | |
| 4540 case TOKcast: // cast(type) expression | |
| 4541 { Type *t; | |
| 4542 | |
| 4543 nextToken(); | |
| 4544 check(TOKlparen); | |
| 4545 t = parseBasicType(); | |
| 4546 t = parseDeclarator(t,NULL); // ( type ) | |
| 4547 check(TOKrparen); | |
| 4548 | |
| 4549 e = parseUnaryExp(); | |
| 4550 e = new CastExp(loc, e, t); | |
| 4551 break; | |
| 4552 } | |
| 4553 | |
| 4554 case TOKlparen: | |
| 4555 { Token *tk; | |
| 4556 | |
| 4557 tk = peek(&token); | |
| 4558 #if CCASTSYNTAX | |
| 4559 // If cast | |
| 4560 if (isDeclaration(tk, 0, TOKrparen, &tk)) | |
| 4561 { | |
| 4562 tk = peek(tk); // skip over right parenthesis | |
| 4563 switch (tk->value) | |
| 4564 { | |
|
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
4565 case TOKnot: |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
4566 tk = peek(tk); |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
4567 if (tk->value == TOKis) // !is |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
4568 break; |
| 336 | 4569 case TOKdot: |
| 4570 case TOKplusplus: | |
| 4571 case TOKminusminus: | |
| 4572 case TOKdelete: | |
| 4573 case TOKnew: | |
| 4574 case TOKlparen: | |
| 4575 case TOKidentifier: | |
| 4576 case TOKthis: | |
| 4577 case TOKsuper: | |
| 4578 case TOKint32v: | |
| 4579 case TOKuns32v: | |
| 4580 case TOKint64v: | |
| 4581 case TOKuns64v: | |
| 4582 case TOKfloat32v: | |
| 4583 case TOKfloat64v: | |
| 4584 case TOKfloat80v: | |
| 4585 case TOKimaginary32v: | |
| 4586 case TOKimaginary64v: | |
| 4587 case TOKimaginary80v: | |
| 4588 case TOKnull: | |
| 4589 case TOKtrue: | |
| 4590 case TOKfalse: | |
| 4591 case TOKcharv: | |
| 4592 case TOKwcharv: | |
| 4593 case TOKdcharv: | |
| 4594 case TOKstring: | |
| 4595 #if 0 | |
| 4596 case TOKtilde: | |
| 4597 case TOKand: | |
| 4598 case TOKmul: | |
| 4599 case TOKmin: | |
| 4600 case TOKadd: | |
| 4601 #endif | |
| 4602 case TOKfunction: | |
| 4603 case TOKdelegate: | |
| 4604 case TOKtypeof: | |
| 4605 #if DMDV2 | |
| 4606 case TOKfile: | |
| 4607 case TOKline: | |
| 4608 #endif | |
| 4609 CASE_BASIC_TYPES: // (type)int.size | |
| 4610 { // (type) una_exp | |
| 4611 Type *t; | |
| 4612 | |
| 4613 nextToken(); | |
| 4614 t = parseBasicType(); | |
| 4615 t = parseDeclarator(t,NULL); | |
| 4616 check(TOKrparen); | |
| 4617 | |
| 4618 // if .identifier | |
| 4619 if (token.value == TOKdot) | |
| 4620 { | |
| 4621 nextToken(); | |
| 4622 if (token.value != TOKidentifier) | |
| 4623 { error("Identifier expected following (type)."); | |
| 4624 return NULL; | |
| 4625 } | |
| 4626 e = new TypeDotIdExp(loc, t, token.ident); | |
| 4627 nextToken(); | |
| 4628 e = parsePostExp(e); | |
| 4629 } | |
| 4630 else | |
| 4631 { | |
| 4632 e = parseUnaryExp(); | |
| 4633 e = new CastExp(loc, e, t); | |
| 4634 error("C style cast illegal, use %s", e->toChars()); | |
| 4635 } | |
| 4636 return e; | |
| 4637 } | |
| 4638 } | |
| 4639 } | |
| 4640 #endif | |
| 4641 e = parsePrimaryExp(); | |
| 4642 break; | |
| 4643 } | |
| 4644 default: | |
| 4645 e = parsePrimaryExp(); | |
| 4646 break; | |
| 4647 } | |
| 4648 assert(e); | |
| 4649 return e; | |
| 4650 } | |
| 4651 | |
| 4652 Expression *Parser::parseMulExp() | |
| 4653 { Expression *e; | |
| 4654 Expression *e2; | |
| 4655 Loc loc = this->loc; | |
| 4656 | |
| 4657 e = parseUnaryExp(); | |
| 4658 while (1) | |
| 4659 { | |
| 4660 switch (token.value) | |
| 4661 { | |
| 4662 case TOKmul: nextToken(); e2 = parseUnaryExp(); e = new MulExp(loc,e,e2); continue; | |
| 4663 case TOKdiv: nextToken(); e2 = parseUnaryExp(); e = new DivExp(loc,e,e2); continue; | |
| 4664 case TOKmod: nextToken(); e2 = parseUnaryExp(); e = new ModExp(loc,e,e2); continue; | |
| 4665 | |
| 4666 default: | |
| 4667 break; | |
| 4668 } | |
| 4669 break; | |
| 4670 } | |
| 4671 return e; | |
| 4672 } | |
| 4673 | |
| 4674 Expression *Parser::parseAddExp() | |
| 4675 { Expression *e; | |
| 4676 Expression *e2; | |
| 4677 Loc loc = this->loc; | |
| 4678 | |
| 4679 e = parseMulExp(); | |
| 4680 while (1) | |
| 4681 { | |
| 4682 switch (token.value) | |
| 4683 { | |
| 4684 case TOKadd: nextToken(); e2 = parseMulExp(); e = new AddExp(loc,e,e2); continue; | |
| 4685 case TOKmin: nextToken(); e2 = parseMulExp(); e = new MinExp(loc,e,e2); continue; | |
| 4686 case TOKtilde: nextToken(); e2 = parseMulExp(); e = new CatExp(loc,e,e2); continue; | |
| 4687 | |
| 4688 default: | |
| 4689 break; | |
| 4690 } | |
| 4691 break; | |
| 4692 } | |
| 4693 return e; | |
| 4694 } | |
| 4695 | |
| 4696 Expression *Parser::parseShiftExp() | |
| 4697 { Expression *e; | |
| 4698 Expression *e2; | |
| 4699 Loc loc = this->loc; | |
| 4700 | |
| 4701 e = parseAddExp(); | |
| 4702 while (1) | |
| 4703 { | |
| 4704 switch (token.value) | |
| 4705 { | |
| 4706 case TOKshl: nextToken(); e2 = parseAddExp(); e = new ShlExp(loc,e,e2); continue; | |
| 4707 case TOKshr: nextToken(); e2 = parseAddExp(); e = new ShrExp(loc,e,e2); continue; | |
| 4708 case TOKushr: nextToken(); e2 = parseAddExp(); e = new UshrExp(loc,e,e2); continue; | |
| 4709 | |
| 4710 default: | |
| 4711 break; | |
| 4712 } | |
| 4713 break; | |
| 4714 } | |
| 4715 return e; | |
| 4716 } | |
| 4717 | |
| 4718 Expression *Parser::parseRelExp() | |
| 4719 { Expression *e; | |
| 4720 Expression *e2; | |
| 4721 enum TOK op; | |
| 4722 Loc loc = this->loc; | |
| 4723 | |
| 4724 e = parseShiftExp(); | |
| 4725 while (1) | |
| 4726 { | |
| 4727 switch (token.value) | |
| 4728 { | |
| 4729 case TOKlt: | |
| 4730 case TOKle: | |
| 4731 case TOKgt: | |
| 4732 case TOKge: | |
| 4733 case TOKunord: | |
| 4734 case TOKlg: | |
| 4735 case TOKleg: | |
| 4736 case TOKule: | |
| 4737 case TOKul: | |
| 4738 case TOKuge: | |
| 4739 case TOKug: | |
| 4740 case TOKue: | |
| 4741 op = token.value; | |
| 4742 nextToken(); | |
| 4743 e2 = parseShiftExp(); | |
| 4744 e = new CmpExp(op, loc, e, e2); | |
| 4745 continue; | |
| 4746 | |
| 4747 case TOKin: | |
| 4748 nextToken(); | |
| 4749 e2 = parseShiftExp(); | |
| 4750 e = new InExp(loc, e, e2); | |
| 4751 continue; | |
| 4752 | |
| 4753 default: | |
| 4754 break; | |
| 4755 } | |
| 4756 break; | |
| 4757 } | |
| 4758 return e; | |
| 4759 } | |
| 4760 | |
| 4761 Expression *Parser::parseEqualExp() | |
| 4762 { Expression *e; | |
| 4763 Expression *e2; | |
| 4764 Token *t; | |
| 4765 Loc loc = this->loc; | |
| 4766 | |
| 4767 e = parseRelExp(); | |
| 4768 while (1) | |
| 4769 { enum TOK value = token.value; | |
| 4770 | |
| 4771 switch (value) | |
| 4772 { | |
| 4773 case TOKequal: | |
| 4774 case TOKnotequal: | |
| 4775 nextToken(); | |
| 4776 e2 = parseRelExp(); | |
| 4777 e = new EqualExp(value, loc, e, e2); | |
| 4778 continue; | |
| 4779 | |
| 4780 case TOKidentity: | |
| 4781 error("'===' is no longer legal, use 'is' instead"); | |
| 4782 goto L1; | |
| 4783 | |
| 4784 case TOKnotidentity: | |
| 4785 error("'!==' is no longer legal, use '!is' instead"); | |
| 4786 goto L1; | |
| 4787 | |
| 4788 case TOKis: | |
| 4789 value = TOKidentity; | |
| 4790 goto L1; | |
| 4791 | |
| 4792 case TOKnot: | |
| 4793 // Attempt to identify '!is' | |
| 4794 t = peek(&token); | |
| 4795 if (t->value != TOKis) | |
| 4796 break; | |
| 4797 nextToken(); | |
| 4798 value = TOKnotidentity; | |
| 4799 goto L1; | |
| 4800 | |
| 4801 L1: | |
| 4802 nextToken(); | |
| 4803 e2 = parseRelExp(); | |
| 4804 e = new IdentityExp(value, loc, e, e2); | |
| 4805 continue; | |
| 4806 | |
| 4807 default: | |
| 4808 break; | |
| 4809 } | |
| 4810 break; | |
| 4811 } | |
| 4812 return e; | |
| 4813 } | |
| 4814 | |
| 4815 Expression *Parser::parseCmpExp() | |
| 4816 { Expression *e; | |
| 4817 Expression *e2; | |
| 4818 Token *t; | |
| 4819 Loc loc = this->loc; | |
| 4820 | |
| 4821 e = parseShiftExp(); | |
| 4822 enum TOK op = token.value; | |
| 4823 | |
| 4824 switch (op) | |
| 4825 { | |
| 4826 case TOKequal: | |
| 4827 case TOKnotequal: | |
| 4828 nextToken(); | |
| 4829 e2 = parseShiftExp(); | |
| 4830 e = new EqualExp(op, loc, e, e2); | |
| 4831 break; | |
| 4832 | |
| 4833 case TOKis: | |
| 4834 op = TOKidentity; | |
| 4835 goto L1; | |
| 4836 | |
| 4837 case TOKnot: | |
| 4838 // Attempt to identify '!is' | |
| 4839 t = peek(&token); | |
| 4840 if (t->value != TOKis) | |
| 4841 break; | |
| 4842 nextToken(); | |
| 4843 op = TOKnotidentity; | |
| 4844 goto L1; | |
| 4845 | |
| 4846 L1: | |
| 4847 nextToken(); | |
| 4848 e2 = parseShiftExp(); | |
| 4849 e = new IdentityExp(op, loc, e, e2); | |
| 4850 break; | |
| 4851 | |
| 4852 case TOKlt: | |
| 4853 case TOKle: | |
| 4854 case TOKgt: | |
| 4855 case TOKge: | |
| 4856 case TOKunord: | |
| 4857 case TOKlg: | |
| 4858 case TOKleg: | |
| 4859 case TOKule: | |
| 4860 case TOKul: | |
| 4861 case TOKuge: | |
| 4862 case TOKug: | |
| 4863 case TOKue: | |
| 4864 nextToken(); | |
| 4865 e2 = parseShiftExp(); | |
| 4866 e = new CmpExp(op, loc, e, e2); | |
| 4867 break; | |
| 4868 | |
| 4869 case TOKin: | |
| 4870 nextToken(); | |
| 4871 e2 = parseShiftExp(); | |
| 4872 e = new InExp(loc, e, e2); | |
| 4873 break; | |
| 4874 | |
| 4875 default: | |
| 4876 break; | |
| 4877 } | |
| 4878 return e; | |
| 4879 } | |
| 4880 | |
| 4881 Expression *Parser::parseAndExp() | |
| 4882 { Expression *e; | |
| 4883 Expression *e2; | |
| 4884 Loc loc = this->loc; | |
| 4885 | |
| 4886 if (global.params.Dversion == 1) | |
| 4887 { | |
| 4888 e = parseEqualExp(); | |
| 4889 while (token.value == TOKand) | |
| 4890 { | |
| 4891 nextToken(); | |
| 4892 e2 = parseEqualExp(); | |
| 4893 e = new AndExp(loc,e,e2); | |
| 4894 loc = this->loc; | |
| 4895 } | |
| 4896 } | |
| 4897 else | |
| 4898 { | |
| 4899 e = parseCmpExp(); | |
| 4900 while (token.value == TOKand) | |
| 4901 { | |
| 4902 nextToken(); | |
| 4903 e2 = parseCmpExp(); | |
| 4904 e = new AndExp(loc,e,e2); | |
| 4905 loc = this->loc; | |
| 4906 } | |
| 4907 } | |
| 4908 return e; | |
| 4909 } | |
| 4910 | |
| 4911 Expression *Parser::parseXorExp() | |
| 4912 { Expression *e; | |
| 4913 Expression *e2; | |
| 4914 Loc loc = this->loc; | |
| 4915 | |
| 4916 e = parseAndExp(); | |
| 4917 while (token.value == TOKxor) | |
| 4918 { | |
| 4919 nextToken(); | |
| 4920 e2 = parseAndExp(); | |
| 4921 e = new XorExp(loc, e, e2); | |
| 4922 } | |
| 4923 return e; | |
| 4924 } | |
| 4925 | |
| 4926 Expression *Parser::parseOrExp() | |
| 4927 { Expression *e; | |
| 4928 Expression *e2; | |
| 4929 Loc loc = this->loc; | |
| 4930 | |
| 4931 e = parseXorExp(); | |
| 4932 while (token.value == TOKor) | |
| 4933 { | |
| 4934 nextToken(); | |
| 4935 e2 = parseXorExp(); | |
| 4936 e = new OrExp(loc, e, e2); | |
| 4937 } | |
| 4938 return e; | |
| 4939 } | |
| 4940 | |
| 4941 Expression *Parser::parseAndAndExp() | |
| 4942 { Expression *e; | |
| 4943 Expression *e2; | |
| 4944 Loc loc = this->loc; | |
| 4945 | |
| 4946 e = parseOrExp(); | |
| 4947 while (token.value == TOKandand) | |
| 4948 { | |
| 4949 nextToken(); | |
| 4950 e2 = parseOrExp(); | |
| 4951 e = new AndAndExp(loc, e, e2); | |
| 4952 } | |
| 4953 return e; | |
| 4954 } | |
| 4955 | |
| 4956 Expression *Parser::parseOrOrExp() | |
| 4957 { Expression *e; | |
| 4958 Expression *e2; | |
| 4959 Loc loc = this->loc; | |
| 4960 | |
| 4961 e = parseAndAndExp(); | |
| 4962 while (token.value == TOKoror) | |
| 4963 { | |
| 4964 nextToken(); | |
| 4965 e2 = parseAndAndExp(); | |
| 4966 e = new OrOrExp(loc, e, e2); | |
| 4967 } | |
| 4968 return e; | |
| 4969 } | |
| 4970 | |
| 4971 Expression *Parser::parseCondExp() | |
| 4972 { Expression *e; | |
| 4973 Expression *e1; | |
| 4974 Expression *e2; | |
| 4975 Loc loc = this->loc; | |
| 4976 | |
| 4977 e = parseOrOrExp(); | |
| 4978 if (token.value == TOKquestion) | |
| 4979 { | |
| 4980 nextToken(); | |
| 4981 e1 = parseExpression(); | |
| 4982 check(TOKcolon); | |
| 4983 e2 = parseCondExp(); | |
| 4984 e = new CondExp(loc, e, e1, e2); | |
| 4985 } | |
| 4986 return e; | |
| 4987 } | |
| 4988 | |
| 4989 Expression *Parser::parseAssignExp() | |
| 4990 { Expression *e; | |
| 4991 Expression *e2; | |
| 4992 Loc loc; | |
| 4993 | |
| 4994 e = parseCondExp(); | |
| 4995 while (1) | |
| 4996 { | |
| 4997 loc = this->loc; | |
| 4998 switch (token.value) | |
| 4999 { | |
| 5000 #define X(tok,ector) \ | |
| 5001 case tok: nextToken(); e2 = parseAssignExp(); e = new ector(loc,e,e2); continue; | |
| 5002 | |
| 5003 X(TOKassign, AssignExp); | |
| 5004 X(TOKaddass, AddAssignExp); | |
| 5005 X(TOKminass, MinAssignExp); | |
| 5006 X(TOKmulass, MulAssignExp); | |
| 5007 X(TOKdivass, DivAssignExp); | |
| 5008 X(TOKmodass, ModAssignExp); | |
| 5009 X(TOKandass, AndAssignExp); | |
| 5010 X(TOKorass, OrAssignExp); | |
| 5011 X(TOKxorass, XorAssignExp); | |
| 5012 X(TOKshlass, ShlAssignExp); | |
| 5013 X(TOKshrass, ShrAssignExp); | |
| 5014 X(TOKushrass, UshrAssignExp); | |
| 5015 X(TOKcatass, CatAssignExp); | |
| 5016 | |
| 5017 #undef X | |
| 5018 default: | |
| 5019 break; | |
| 5020 } | |
| 5021 break; | |
| 5022 } | |
| 5023 return e; | |
| 5024 } | |
| 5025 | |
| 5026 Expression *Parser::parseExpression() | |
| 5027 { Expression *e; | |
| 5028 Expression *e2; | |
| 5029 Loc loc = this->loc; | |
| 5030 | |
| 5031 //printf("Parser::parseExpression() loc = %d\n", loc.linnum); | |
| 5032 e = parseAssignExp(); | |
| 5033 while (token.value == TOKcomma) | |
| 5034 { | |
| 5035 nextToken(); | |
| 5036 e2 = parseAssignExp(); | |
| 5037 e = new CommaExp(loc, e, e2); | |
| 5038 loc = this->loc; | |
| 5039 } | |
| 5040 return e; | |
| 5041 } | |
| 5042 | |
| 5043 | |
| 5044 /************************* | |
| 5045 * Collect argument list. | |
| 5046 * Assume current token is '(' or '['. | |
| 5047 */ | |
| 5048 | |
| 5049 Expressions *Parser::parseArguments() | |
| 5050 { // function call | |
| 5051 Expressions *arguments; | |
| 5052 Expression *arg; | |
| 5053 enum TOK endtok; | |
| 5054 | |
| 5055 arguments = new Expressions(); | |
| 5056 if (token.value == TOKlbracket) | |
| 5057 endtok = TOKrbracket; | |
| 5058 else | |
| 5059 endtok = TOKrparen; | |
| 5060 | |
| 5061 { | |
| 5062 nextToken(); | |
| 5063 if (token.value != endtok) | |
| 5064 { | |
| 5065 while (1) | |
| 5066 { | |
| 5067 arg = parseAssignExp(); | |
| 5068 arguments->push(arg); | |
| 5069 if (token.value == endtok) | |
| 5070 break; | |
| 5071 check(TOKcomma); | |
| 5072 } | |
| 5073 } | |
| 5074 check(endtok); | |
| 5075 } | |
| 5076 return arguments; | |
| 5077 } | |
| 5078 | |
| 5079 /******************************************* | |
| 5080 */ | |
| 5081 | |
| 5082 Expression *Parser::parseNewExp(Expression *thisexp) | |
| 5083 { Type *t; | |
| 5084 Expressions *newargs; | |
| 5085 Expressions *arguments = NULL; | |
| 5086 Expression *e; | |
| 5087 Loc loc = this->loc; | |
| 5088 | |
| 5089 nextToken(); | |
| 5090 newargs = NULL; | |
| 5091 if (token.value == TOKlparen) | |
| 5092 { | |
| 5093 newargs = parseArguments(); | |
| 5094 } | |
| 5095 | |
| 5096 // An anonymous nested class starts with "class" | |
| 5097 if (token.value == TOKclass) | |
| 5098 { | |
| 5099 nextToken(); | |
| 5100 if (token.value == TOKlparen) | |
| 5101 arguments = parseArguments(); | |
| 5102 | |
| 5103 BaseClasses *baseclasses = NULL; | |
| 5104 if (token.value != TOKlcurly) | |
| 5105 baseclasses = parseBaseClasses(); | |
| 5106 | |
| 5107 Identifier *id = NULL; | |
| 5108 ClassDeclaration *cd = new ClassDeclaration(loc, id, baseclasses); | |
| 5109 | |
| 5110 if (token.value != TOKlcurly) | |
| 5111 { error("{ members } expected for anonymous class"); | |
| 5112 cd->members = NULL; | |
| 5113 } | |
| 5114 else | |
| 5115 { | |
| 5116 nextToken(); | |
| 5117 Array *decl = parseDeclDefs(0); | |
| 5118 if (token.value != TOKrcurly) | |
| 5119 error("class member expected"); | |
| 5120 nextToken(); | |
| 5121 cd->members = decl; | |
| 5122 } | |
| 5123 | |
| 5124 e = new NewAnonClassExp(loc, thisexp, newargs, cd, arguments); | |
| 5125 | |
| 5126 return e; | |
| 5127 } | |
| 5128 | |
| 5129 #if LTORARRAYDECL | |
| 5130 t = parseBasicType(); | |
| 5131 t = parseBasicType2(t); | |
| 5132 if (t->ty == Taarray) | |
| 5133 { | |
| 5134 Type *index = ((TypeAArray *)t)->index; | |
| 5135 | |
| 5136 Expression *e = index->toExpression(); | |
| 5137 if (e) | |
| 5138 { arguments = new Expressions(); | |
| 5139 arguments->push(e); | |
| 5140 t = new TypeDArray(t->next); | |
| 5141 } | |
| 5142 else | |
| 5143 { | |
| 5144 error("need size of rightmost array, not type %s", index->toChars()); | |
| 5145 return new NullExp(loc); | |
| 5146 } | |
| 5147 } | |
| 5148 else if (t->ty == Tsarray) | |
| 5149 { | |
| 5150 TypeSArray *tsa = (TypeSArray *)t; | |
| 5151 Expression *e = tsa->dim; | |
| 5152 | |
| 5153 arguments = new Expressions(); | |
| 5154 arguments->push(e); | |
| 5155 t = new TypeDArray(t->next); | |
| 5156 } | |
| 5157 else if (token.value == TOKlparen) | |
| 5158 { | |
| 5159 arguments = parseArguments(); | |
| 5160 } | |
| 5161 #else | |
| 5162 t = parseBasicType(); | |
| 5163 while (token.value == TOKmul) | |
| 5164 { t = new TypePointer(t); | |
| 5165 nextToken(); | |
| 5166 } | |
| 5167 if (token.value == TOKlbracket) | |
| 5168 { | |
| 5169 Expression *e; | |
| 5170 | |
| 5171 nextToken(); | |
| 5172 e = parseAssignExp(); | |
| 5173 arguments = new Array(); | |
| 5174 arguments->push(e); | |
| 5175 check(TOKrbracket); | |
| 5176 t = parseDeclarator(t, NULL); | |
| 5177 t = new TypeDArray(t); | |
| 5178 } | |
| 5179 else if (token.value == TOKlparen) | |
| 5180 arguments = parseArguments(); | |
| 5181 #endif | |
| 5182 e = new NewExp(loc, thisexp, newargs, t, arguments); | |
| 5183 return e; | |
| 5184 } | |
| 5185 | |
| 5186 /********************************************** | |
| 5187 */ | |
| 5188 | |
| 5189 void Parser::addComment(Dsymbol *s, unsigned char *blockComment) | |
| 5190 { | |
| 5191 s->addComment(combineComments(blockComment, token.lineComment)); | |
|
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
5192 token.lineComment = NULL; |
| 336 | 5193 } |
| 5194 | |
| 5195 | |
| 5196 /********************************* ***************************/ | |
| 5197 |