Mercurial > projects > ldc
annotate dmd/parse.c @ 1256:6af2359b433a
Change needed for mingw
| author | Kelly Wilson <wilsonk cpsc.ucalgary.ca> |
|---|---|
| date | Wed, 22 Apr 2009 14:40:56 -0600 |
| parents | e961851fb8be |
| children | dda95755f63d |
| rev | line source |
|---|---|
| 336 | 1 |
| 2 // Compiler implementation of the D programming language | |
|
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3 // Copyright (c) 1999-2009 by Digital Mars |
| 336 | 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 | |
|
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16 #include "rmem.h" |
| 336 | 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" | |
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35 #if DMDV2 |
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36 #include "aliasthis.h" |
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37 #endif |
| 336 | 38 |
| 39 // How multiple declarations are parsed. | |
| 40 // If 1, treat as C. | |
| 41 // If 0, treat: | |
| 42 // int *p, i; | |
| 43 // as: | |
| 44 // int* p; | |
| 45 // int* i; | |
| 46 #define CDECLSYNTAX 0 | |
| 47 | |
| 48 // Support C cast syntax: | |
| 49 // (type)(expression) | |
| 50 #define CCASTSYNTAX 1 | |
| 51 | |
| 52 // Support postfix C array declarations, such as | |
| 53 // int a[3][4]; | |
| 54 #define CARRAYDECL 1 | |
| 55 | |
| 56 // Support left-to-right array declarations | |
| 57 #define LTORARRAYDECL 1 | |
| 58 | |
| 59 | |
| 60 Parser::Parser(Module *module, unsigned char *base, unsigned length, int doDocComment) | |
| 61 : Lexer(module, base, 0, length, doDocComment, 0) | |
| 62 { | |
| 63 //printf("Parser::Parser()\n"); | |
| 64 md = NULL; | |
| 65 linkage = LINKd; | |
| 66 endloc = 0; | |
| 67 inBrackets = 0; | |
| 68 //nextToken(); // start up the scanner | |
| 69 } | |
| 70 | |
| 71 Array *Parser::parseModule() | |
| 72 { | |
| 73 Array *decldefs; | |
| 74 | |
| 75 // ModuleDeclation leads off | |
| 76 if (token.value == TOKmodule) | |
| 77 { | |
| 78 unsigned char *comment = token.blockComment; | |
| 79 | |
| 80 nextToken(); | |
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81 #if DMDV2 |
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82 if (token.value == TOKlparen) |
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83 { |
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84 nextToken(); |
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85 if (token.value != TOKidentifier) |
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86 { error("module (system) identifier expected"); |
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87 goto Lerr; |
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88 } |
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89 Identifier *id = token.ident; |
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90 |
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91 if (id == Id::system) |
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92 safe = TRUE; |
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93 else |
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94 error("(safe) expected, not %s", id->toChars()); |
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95 nextToken(); |
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96 check(TOKrparen); |
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97 } |
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98 #endif |
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99 |
| 336 | 100 if (token.value != TOKidentifier) |
| 101 { error("Identifier expected following module"); | |
| 102 goto Lerr; | |
| 103 } | |
| 104 else | |
| 105 { | |
| 106 Array *a = NULL; | |
| 107 Identifier *id; | |
| 108 | |
| 109 id = token.ident; | |
| 110 while (nextToken() == TOKdot) | |
| 111 { | |
| 112 if (!a) | |
| 113 a = new Array(); | |
| 114 a->push(id); | |
| 115 nextToken(); | |
| 116 if (token.value != TOKidentifier) | |
| 117 { error("Identifier expected following package"); | |
| 118 goto Lerr; | |
| 119 } | |
| 120 id = token.ident; | |
| 121 } | |
| 122 | |
| 123 md = new ModuleDeclaration(a, id); | |
| 124 | |
| 125 if (token.value != TOKsemicolon) | |
| 126 error("';' expected following module declaration instead of %s", token.toChars()); | |
| 127 nextToken(); | |
| 128 addComment(mod, comment); | |
| 129 } | |
| 130 } | |
| 131 | |
| 132 decldefs = parseDeclDefs(0); | |
| 133 if (token.value != TOKeof) | |
| 134 { error("unrecognized declaration"); | |
| 135 goto Lerr; | |
| 136 } | |
| 137 return decldefs; | |
| 138 | |
| 139 Lerr: | |
| 140 while (token.value != TOKsemicolon && token.value != TOKeof) | |
| 141 nextToken(); | |
| 142 nextToken(); | |
| 143 return new Array(); | |
| 144 } | |
| 145 | |
| 146 Array *Parser::parseDeclDefs(int once) | |
| 147 { Dsymbol *s; | |
| 148 Array *decldefs; | |
| 149 Array *a; | |
| 150 Array *aelse; | |
| 151 enum PROT prot; | |
| 152 unsigned stc; | |
| 153 Condition *condition; | |
| 154 unsigned char *comment; | |
| 155 | |
| 156 //printf("Parser::parseDeclDefs()\n"); | |
| 157 decldefs = new Array(); | |
| 158 do | |
| 159 { | |
| 160 comment = token.blockComment; | |
| 161 switch (token.value) | |
| 162 { | |
| 163 case TOKenum: | |
| 164 s = parseEnum(); | |
| 165 break; | |
| 166 | |
| 167 case TOKstruct: | |
| 168 case TOKunion: | |
| 169 case TOKclass: | |
| 170 case TOKinterface: | |
| 171 s = parseAggregate(); | |
| 172 break; | |
| 173 | |
| 174 case TOKimport: | |
| 175 s = parseImport(decldefs, 0); | |
| 176 break; | |
| 177 | |
| 178 case TOKtemplate: | |
| 179 s = (Dsymbol *)parseTemplateDeclaration(); | |
| 180 break; | |
| 181 | |
| 182 case TOKmixin: | |
| 183 { Loc loc = this->loc; | |
| 184 if (peek(&token)->value == TOKlparen) | |
| 185 { // mixin(string) | |
| 186 nextToken(); | |
| 187 check(TOKlparen, "mixin"); | |
| 188 Expression *e = parseAssignExp(); | |
| 189 check(TOKrparen); | |
| 190 check(TOKsemicolon); | |
| 191 s = new CompileDeclaration(loc, e); | |
| 192 break; | |
| 193 } | |
| 194 s = parseMixin(); | |
| 195 break; | |
| 196 } | |
| 197 | |
| 198 CASE_BASIC_TYPES: | |
| 199 case TOKalias: | |
| 200 case TOKtypedef: | |
| 201 case TOKidentifier: | |
| 202 case TOKtypeof: | |
| 203 case TOKdot: | |
| 204 Ldeclaration: | |
| 205 a = parseDeclarations(); | |
| 206 decldefs->append(a); | |
| 207 continue; | |
| 208 | |
| 209 case TOKthis: | |
| 210 s = parseCtor(); | |
| 211 break; | |
| 212 | |
| 213 case TOKtilde: | |
| 214 s = parseDtor(); | |
| 215 break; | |
| 216 | |
| 217 case TOKinvariant: | |
| 218 #if 1 | |
| 219 s = parseInvariant(); | |
| 220 #else | |
| 221 if (peek(&token)->value == TOKlcurly) | |
| 222 s = parseInvariant(); | |
| 223 else | |
| 224 { | |
| 225 stc = STCinvariant; | |
| 226 goto Lstc; | |
| 227 } | |
| 228 #endif | |
| 229 break; | |
| 230 | |
| 231 case TOKunittest: | |
| 232 s = parseUnitTest(); | |
| 233 break; | |
| 234 | |
| 235 case TOKnew: | |
| 236 s = parseNew(); | |
| 237 break; | |
| 238 | |
| 239 case TOKdelete: | |
| 240 s = parseDelete(); | |
| 241 break; | |
| 242 | |
| 243 case TOKeof: | |
| 244 case TOKrcurly: | |
| 245 return decldefs; | |
| 246 | |
| 247 case TOKstatic: | |
| 248 nextToken(); | |
| 249 if (token.value == TOKthis) | |
| 250 s = parseStaticCtor(); | |
| 251 else if (token.value == TOKtilde) | |
| 252 s = parseStaticDtor(); | |
| 253 else if (token.value == TOKassert) | |
| 254 s = parseStaticAssert(); | |
| 255 else if (token.value == TOKif) | |
| 256 { condition = parseStaticIfCondition(); | |
| 257 a = parseBlock(); | |
| 258 aelse = NULL; | |
| 259 if (token.value == TOKelse) | |
| 260 { nextToken(); | |
| 261 aelse = parseBlock(); | |
| 262 } | |
| 263 s = new StaticIfDeclaration(condition, a, aelse); | |
| 264 break; | |
| 265 } | |
| 266 else if (token.value == TOKimport) | |
| 267 { | |
| 268 s = parseImport(decldefs, 1); | |
| 269 } | |
| 270 else | |
| 271 { stc = STCstatic; | |
| 272 goto Lstc2; | |
| 273 } | |
| 274 break; | |
| 275 | |
| 276 case TOKconst: stc = STCconst; goto Lstc; | |
| 277 case TOKfinal: stc = STCfinal; goto Lstc; | |
| 278 case TOKauto: stc = STCauto; goto Lstc; | |
| 279 case TOKscope: stc = STCscope; goto Lstc; | |
| 280 case TOKoverride: stc = STCoverride; goto Lstc; | |
| 281 case TOKabstract: stc = STCabstract; goto Lstc; | |
| 282 case TOKsynchronized: stc = STCsynchronized; goto Lstc; | |
| 283 case TOKdeprecated: stc = STCdeprecated; goto Lstc; | |
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284 #if DMDV2 |
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285 case TOKnothrow: stc = STCnothrow; goto Lstc; |
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286 case TOKpure: stc = STCpure; goto Lstc; |
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287 case TOKref: stc = STCref; goto Lstc; |
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288 case TOKtls: stc = STCtls; goto Lstc; |
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289 //case TOKmanifest: stc = STCmanifest; goto Lstc; |
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290 #endif |
| 336 | 291 |
| 292 Lstc: | |
| 293 nextToken(); | |
| 294 Lstc2: | |
| 295 switch (token.value) | |
| 296 { | |
| 297 case TOKconst: stc |= STCconst; goto Lstc; | |
| 298 case TOKfinal: stc |= STCfinal; goto Lstc; | |
| 299 case TOKauto: stc |= STCauto; goto Lstc; | |
| 300 case TOKscope: stc |= STCscope; goto Lstc; | |
| 301 case TOKoverride: stc |= STCoverride; goto Lstc; | |
| 302 case TOKabstract: stc |= STCabstract; goto Lstc; | |
| 303 case TOKsynchronized: stc |= STCsynchronized; goto Lstc; | |
| 304 case TOKdeprecated: stc |= STCdeprecated; goto Lstc; | |
| 305 //case TOKinvariant: stc |= STCinvariant; goto Lstc; | |
| 306 default: | |
| 307 break; | |
| 308 } | |
| 309 | |
| 310 /* Look for auto initializers: | |
| 311 * storage_class identifier = initializer; | |
| 312 */ | |
| 313 if (token.value == TOKidentifier && | |
| 314 peek(&token)->value == TOKassign) | |
| 315 { | |
| 316 while (1) | |
| 317 { | |
| 318 Identifier *ident = token.ident; | |
| 319 nextToken(); | |
| 320 nextToken(); | |
| 321 Initializer *init = parseInitializer(); | |
| 322 VarDeclaration *v = new VarDeclaration(loc, NULL, ident, init); | |
| 323 v->storage_class = stc; | |
| 324 s = v; | |
| 325 if (token.value == TOKsemicolon) | |
| 326 { | |
| 327 nextToken(); | |
| 328 } | |
| 329 else if (token.value == TOKcomma) | |
| 330 { | |
| 331 nextToken(); | |
| 332 if (token.value == TOKidentifier && | |
| 333 peek(&token)->value == TOKassign) | |
| 334 { | |
| 335 decldefs->push(s); | |
| 336 addComment(s, comment); | |
| 337 continue; | |
| 338 } | |
| 339 else | |
| 340 error("Identifier expected following comma"); | |
| 341 } | |
| 342 else | |
| 343 error("semicolon expected following auto declaration, not '%s'", token.toChars()); | |
| 344 break; | |
| 345 } | |
| 346 } | |
| 347 else | |
| 348 { a = parseBlock(); | |
| 349 s = new StorageClassDeclaration(stc, a); | |
| 350 } | |
| 351 break; | |
| 352 | |
| 353 case TOKextern: | |
| 354 if (peek(&token)->value != TOKlparen) | |
| 355 { stc = STCextern; | |
| 356 goto Lstc; | |
| 357 } | |
| 358 { | |
| 359 enum LINK linksave = linkage; | |
| 360 linkage = parseLinkage(); | |
| 361 a = parseBlock(); | |
| 362 s = new LinkDeclaration(linkage, a); | |
| 363 linkage = linksave; | |
| 364 break; | |
| 365 } | |
| 366 case TOKprivate: prot = PROTprivate; goto Lprot; | |
| 367 case TOKpackage: prot = PROTpackage; goto Lprot; | |
| 368 case TOKprotected: prot = PROTprotected; goto Lprot; | |
| 369 case TOKpublic: prot = PROTpublic; goto Lprot; | |
| 370 case TOKexport: prot = PROTexport; goto Lprot; | |
| 371 | |
| 372 Lprot: | |
| 373 nextToken(); | |
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374 switch (token.value) |
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375 { |
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376 case TOKprivate: |
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377 case TOKpackage: |
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378 case TOKprotected: |
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379 case TOKpublic: |
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380 case TOKexport: |
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381 error("redundant protection attribute"); |
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382 break; |
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383 } |
| 336 | 384 a = parseBlock(); |
| 385 s = new ProtDeclaration(prot, a); | |
| 386 break; | |
| 387 | |
| 388 case TOKalign: | |
| 389 { unsigned n; | |
| 390 | |
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391 // LDC better align code locations |
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392 Loc alignloc = loc; |
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393 |
| 336 | 394 s = NULL; |
| 395 nextToken(); | |
| 396 if (token.value == TOKlparen) | |
| 397 { | |
| 398 nextToken(); | |
| 399 if (token.value == TOKint32v) | |
| 400 n = (unsigned)token.uns64value; | |
| 401 else | |
| 402 { error("integer expected, not %s", token.toChars()); | |
| 403 n = 1; | |
| 404 } | |
| 405 nextToken(); | |
| 406 check(TOKrparen); | |
| 407 } | |
| 408 else | |
| 409 n = global.structalign; // default | |
| 410 | |
| 411 a = parseBlock(); | |
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412 s = new AlignDeclaration(alignloc, n, a); |
| 336 | 413 break; |
| 414 } | |
| 415 | |
| 416 case TOKpragma: | |
| 417 { Identifier *ident; | |
| 418 Expressions *args = NULL; | |
| 419 | |
| 420 nextToken(); | |
| 421 check(TOKlparen); | |
| 422 if (token.value != TOKidentifier) | |
| 423 { error("pragma(identifier expected"); | |
| 424 goto Lerror; | |
| 425 } | |
| 426 ident = token.ident; | |
| 427 nextToken(); | |
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428 if (token.value == TOKcomma && peekNext() != TOKrparen) |
| 336 | 429 args = parseArguments(); // pragma(identifier, args...) |
| 430 else | |
| 431 check(TOKrparen); // pragma(identifier) | |
| 432 | |
| 433 if (token.value == TOKsemicolon) | |
| 434 a = NULL; | |
| 435 else | |
| 436 a = parseBlock(); | |
| 437 s = new PragmaDeclaration(loc, ident, args, a); | |
| 438 break; | |
| 439 } | |
| 440 | |
| 441 case TOKdebug: | |
| 442 nextToken(); | |
| 443 if (token.value == TOKassign) | |
| 444 { | |
| 445 nextToken(); | |
| 446 if (token.value == TOKidentifier) | |
| 447 s = new DebugSymbol(loc, token.ident); | |
| 448 else if (token.value == TOKint32v) | |
| 449 s = new DebugSymbol(loc, (unsigned)token.uns64value); | |
| 450 else | |
| 451 { error("identifier or integer expected, not %s", token.toChars()); | |
| 452 s = NULL; | |
| 453 } | |
| 454 nextToken(); | |
| 455 if (token.value != TOKsemicolon) | |
| 456 error("semicolon expected"); | |
| 457 nextToken(); | |
| 458 break; | |
| 459 } | |
| 460 | |
| 461 condition = parseDebugCondition(); | |
| 462 goto Lcondition; | |
| 463 | |
| 464 case TOKversion: | |
| 465 nextToken(); | |
| 466 if (token.value == TOKassign) | |
| 467 { | |
| 468 nextToken(); | |
| 469 if (token.value == TOKidentifier) | |
| 470 s = new VersionSymbol(loc, token.ident); | |
| 471 else if (token.value == TOKint32v) | |
| 472 s = new VersionSymbol(loc, (unsigned)token.uns64value); | |
| 473 else | |
| 474 { error("identifier or integer expected, not %s", token.toChars()); | |
| 475 s = NULL; | |
| 476 } | |
| 477 nextToken(); | |
| 478 if (token.value != TOKsemicolon) | |
| 479 error("semicolon expected"); | |
| 480 nextToken(); | |
| 481 break; | |
| 482 } | |
| 483 condition = parseVersionCondition(); | |
| 484 goto Lcondition; | |
| 485 | |
| 486 Lcondition: | |
| 487 a = parseBlock(); | |
| 488 aelse = NULL; | |
| 489 if (token.value == TOKelse) | |
| 490 { nextToken(); | |
| 491 aelse = parseBlock(); | |
| 492 } | |
| 493 s = new ConditionalDeclaration(condition, a, aelse); | |
| 494 break; | |
| 495 | |
| 496 case TOKsemicolon: // empty declaration | |
| 497 nextToken(); | |
| 498 continue; | |
| 499 | |
| 500 default: | |
| 501 error("Declaration expected, not '%s'",token.toChars()); | |
| 502 Lerror: | |
| 503 while (token.value != TOKsemicolon && token.value != TOKeof) | |
| 504 nextToken(); | |
| 505 nextToken(); | |
| 506 s = NULL; | |
| 507 continue; | |
| 508 } | |
| 509 if (s) | |
| 510 { decldefs->push(s); | |
| 511 addComment(s, comment); | |
| 512 } | |
| 513 } while (!once); | |
| 514 return decldefs; | |
| 515 } | |
| 516 | |
| 517 | |
| 518 /******************************************** | |
| 519 * Parse declarations after an align, protection, or extern decl. | |
| 520 */ | |
| 521 | |
| 522 Array *Parser::parseBlock() | |
| 523 { | |
| 524 Array *a = NULL; | |
| 525 Dsymbol *s; | |
| 526 | |
| 527 //printf("parseBlock()\n"); | |
| 528 switch (token.value) | |
| 529 { | |
| 530 case TOKsemicolon: | |
| 531 error("declaration expected following attribute, not ';'"); | |
| 532 nextToken(); | |
| 533 break; | |
| 534 | |
| 535 case TOKlcurly: | |
| 536 nextToken(); | |
| 537 a = parseDeclDefs(0); | |
| 538 if (token.value != TOKrcurly) | |
| 539 { /* { */ | |
| 540 error("matching '}' expected, not %s", token.toChars()); | |
| 541 } | |
| 542 else | |
| 543 nextToken(); | |
| 544 break; | |
| 545 | |
| 546 case TOKcolon: | |
| 547 nextToken(); | |
| 548 #if 0 | |
| 549 a = NULL; | |
| 550 #else | |
| 551 a = parseDeclDefs(0); // grab declarations up to closing curly bracket | |
| 552 #endif | |
| 553 break; | |
| 554 | |
| 555 default: | |
| 556 a = parseDeclDefs(1); | |
| 557 break; | |
| 558 } | |
| 559 return a; | |
| 560 } | |
| 561 | |
| 562 /********************************** | |
| 563 * Parse a static assertion. | |
| 564 */ | |
| 565 | |
| 566 StaticAssert *Parser::parseStaticAssert() | |
| 567 { | |
| 568 Loc loc = this->loc; | |
| 569 Expression *exp; | |
| 570 Expression *msg = NULL; | |
| 571 | |
| 572 //printf("parseStaticAssert()\n"); | |
| 573 nextToken(); | |
| 574 check(TOKlparen); | |
| 575 exp = parseAssignExp(); | |
| 576 if (token.value == TOKcomma) | |
| 577 { nextToken(); | |
| 578 msg = parseAssignExp(); | |
| 579 } | |
| 580 check(TOKrparen); | |
| 581 check(TOKsemicolon); | |
| 582 return new StaticAssert(loc, exp, msg); | |
| 583 } | |
| 584 | |
| 585 /*********************************** | |
| 586 * Parse typeof(expression). | |
| 587 * Current token is on the 'typeof'. | |
| 588 */ | |
| 589 | |
| 590 #if DMDV2 | |
| 591 TypeQualified *Parser::parseTypeof() | |
| 592 { TypeQualified *t; | |
| 593 Loc loc = this->loc; | |
| 594 | |
| 595 nextToken(); | |
| 596 check(TOKlparen); | |
| 597 if (token.value == TOKreturn) // typeof(return) | |
| 598 { | |
| 599 nextToken(); | |
| 600 t = new TypeReturn(loc); | |
| 601 } | |
| 602 else | |
| 603 { Expression *exp = parseExpression(); // typeof(expression) | |
| 604 t = new TypeTypeof(loc, exp); | |
| 605 } | |
| 606 check(TOKrparen); | |
| 607 return t; | |
| 608 } | |
| 609 #endif | |
| 610 | |
| 611 /*********************************** | |
| 612 * Parse extern (linkage) | |
| 613 * The parser is on the 'extern' token. | |
| 614 */ | |
| 615 | |
| 616 enum LINK Parser::parseLinkage() | |
| 617 { | |
| 618 enum LINK link = LINKdefault; | |
| 619 nextToken(); | |
| 620 assert(token.value == TOKlparen); | |
| 621 nextToken(); | |
| 622 if (token.value == TOKidentifier) | |
| 623 { Identifier *id = token.ident; | |
| 624 | |
| 625 nextToken(); | |
| 626 if (id == Id::Windows) | |
| 627 link = LINKwindows; | |
| 628 else if (id == Id::Pascal) | |
| 629 link = LINKpascal; | |
| 630 else if (id == Id::D) | |
| 631 link = LINKd; | |
| 632 else if (id == Id::C) | |
| 633 { | |
| 634 link = LINKc; | |
| 635 if (token.value == TOKplusplus) | |
| 636 { link = LINKcpp; | |
| 637 nextToken(); | |
| 638 } | |
| 639 } | |
| 640 else if (id == Id::System) | |
| 641 { | |
|
721
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642 // LDC we configure target at runtime |
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643 if (global.params.os == OSWindows) |
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644 link = LINKwindows; |
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645 else |
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646 link = LINKc; |
| 336 | 647 } |
| 648 else | |
| 649 { | |
| 650 error("valid linkage identifiers are D, C, C++, Pascal, Windows, System"); | |
| 651 link = LINKd; | |
| 652 } | |
| 653 } | |
| 654 else | |
| 655 { | |
| 656 link = LINKd; // default | |
| 657 } | |
| 658 check(TOKrparen); | |
| 659 return link; | |
| 660 } | |
| 661 | |
| 662 /************************************** | |
| 663 * Parse a debug conditional | |
| 664 */ | |
| 665 | |
| 666 Condition *Parser::parseDebugCondition() | |
| 667 { | |
| 668 Condition *c; | |
| 669 | |
| 670 if (token.value == TOKlparen) | |
| 671 { | |
| 672 nextToken(); | |
| 673 unsigned level = 1; | |
| 674 Identifier *id = NULL; | |
| 675 | |
| 676 if (token.value == TOKidentifier) | |
| 677 id = token.ident; | |
| 678 else if (token.value == TOKint32v) | |
| 679 level = (unsigned)token.uns64value; | |
| 680 else | |
| 681 error("identifier or integer expected, not %s", token.toChars()); | |
| 682 nextToken(); | |
| 683 check(TOKrparen); | |
| 684 c = new DebugCondition(mod, level, id); | |
| 685 } | |
| 686 else | |
| 687 c = new DebugCondition(mod, 1, NULL); | |
| 688 return c; | |
| 689 | |
| 690 } | |
| 691 | |
| 692 /************************************** | |
| 693 * Parse a version conditional | |
| 694 */ | |
| 695 | |
| 696 Condition *Parser::parseVersionCondition() | |
| 697 { | |
| 698 Condition *c; | |
| 699 unsigned level = 1; | |
| 700 Identifier *id = NULL; | |
| 701 | |
| 702 if (token.value == TOKlparen) | |
| 703 { | |
| 704 nextToken(); | |
| 705 if (token.value == TOKidentifier) | |
| 706 id = token.ident; | |
| 707 else if (token.value == TOKint32v) | |
| 708 level = (unsigned)token.uns64value; | |
| 709 #if DMDV2 | |
| 710 /* Allow: | |
| 711 * version (unittest) | |
| 712 * even though unittest is a keyword | |
| 713 */ | |
| 714 else if (token.value == TOKunittest) | |
| 715 id = Lexer::idPool(Token::toChars(TOKunittest)); | |
| 716 #endif | |
| 717 else | |
| 718 error("identifier or integer expected, not %s", token.toChars()); | |
| 719 nextToken(); | |
| 720 check(TOKrparen); | |
| 721 | |
| 722 } | |
| 723 else | |
| 724 error("(condition) expected following version"); | |
| 725 c = new VersionCondition(mod, level, id); | |
| 726 return c; | |
| 727 | |
| 728 } | |
| 729 | |
| 730 /*********************************************** | |
| 731 * static if (expression) | |
| 732 * body | |
| 733 * else | |
| 734 * body | |
| 735 */ | |
| 736 | |
| 737 Condition *Parser::parseStaticIfCondition() | |
| 738 { Expression *exp; | |
| 739 Condition *condition; | |
| 740 Array *aif; | |
| 741 Array *aelse; | |
| 742 Loc loc = this->loc; | |
| 743 | |
| 744 nextToken(); | |
| 745 if (token.value == TOKlparen) | |
| 746 { | |
| 747 nextToken(); | |
| 748 exp = parseAssignExp(); | |
| 749 check(TOKrparen); | |
| 750 } | |
| 751 else | |
| 752 { error("(expression) expected following static if"); | |
| 753 exp = NULL; | |
| 754 } | |
| 755 condition = new StaticIfCondition(loc, exp); | |
| 756 return condition; | |
| 757 } | |
| 758 | |
| 759 | |
| 760 /***************************************** | |
| 761 * Parse a constructor definition: | |
| 762 * this(arguments) { body } | |
| 763 * Current token is 'this'. | |
| 764 */ | |
| 765 | |
| 766 CtorDeclaration *Parser::parseCtor() | |
| 767 { | |
| 768 CtorDeclaration *f; | |
| 769 Arguments *arguments; | |
| 770 int varargs; | |
| 771 Loc loc = this->loc; | |
| 772 | |
| 773 nextToken(); | |
| 774 arguments = parseParameters(&varargs); | |
| 775 f = new CtorDeclaration(loc, 0, arguments, varargs); | |
| 776 parseContracts(f); | |
| 777 return f; | |
| 778 } | |
| 779 | |
| 780 /***************************************** | |
| 781 * Parse a destructor definition: | |
| 782 * ~this() { body } | |
| 783 * Current token is '~'. | |
| 784 */ | |
| 785 | |
| 786 DtorDeclaration *Parser::parseDtor() | |
| 787 { | |
| 788 DtorDeclaration *f; | |
| 789 Loc loc = this->loc; | |
| 790 | |
| 791 nextToken(); | |
| 792 check(TOKthis); | |
| 793 check(TOKlparen); | |
| 794 check(TOKrparen); | |
| 795 | |
| 796 f = new DtorDeclaration(loc, 0); | |
| 797 parseContracts(f); | |
| 798 return f; | |
| 799 } | |
| 800 | |
| 801 /***************************************** | |
| 802 * Parse a static constructor definition: | |
| 803 * static this() { body } | |
| 804 * Current token is 'this'. | |
| 805 */ | |
| 806 | |
| 807 StaticCtorDeclaration *Parser::parseStaticCtor() | |
| 808 { | |
| 809 StaticCtorDeclaration *f; | |
| 810 Loc loc = this->loc; | |
| 811 | |
| 812 nextToken(); | |
| 813 check(TOKlparen); | |
| 814 check(TOKrparen); | |
| 815 | |
| 816 f = new StaticCtorDeclaration(loc, 0); | |
| 817 parseContracts(f); | |
| 818 return f; | |
| 819 } | |
| 820 | |
| 821 /***************************************** | |
| 822 * Parse a static destructor definition: | |
| 823 * static ~this() { body } | |
| 824 * Current token is '~'. | |
| 825 */ | |
| 826 | |
| 827 StaticDtorDeclaration *Parser::parseStaticDtor() | |
| 828 { | |
| 829 StaticDtorDeclaration *f; | |
| 830 Loc loc = this->loc; | |
| 831 | |
| 832 nextToken(); | |
| 833 check(TOKthis); | |
| 834 check(TOKlparen); | |
| 835 check(TOKrparen); | |
| 836 | |
| 837 f = new StaticDtorDeclaration(loc, 0); | |
| 838 parseContracts(f); | |
| 839 return f; | |
| 840 } | |
| 841 | |
| 842 /***************************************** | |
| 843 * Parse an invariant definition: | |
|
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|
844 * invariant() { body } |
| 336 | 845 * Current token is 'invariant'. |
| 846 */ | |
| 847 | |
| 848 InvariantDeclaration *Parser::parseInvariant() | |
| 849 { | |
| 850 InvariantDeclaration *f; | |
| 851 Loc loc = this->loc; | |
| 852 | |
| 853 nextToken(); | |
| 854 if (token.value == TOKlparen) // optional () | |
| 855 { | |
| 856 nextToken(); | |
| 857 check(TOKrparen); | |
| 858 } | |
| 859 | |
| 860 f = new InvariantDeclaration(loc, 0); | |
| 861 f->fbody = parseStatement(PScurly); | |
| 862 return f; | |
| 863 } | |
| 864 | |
| 865 /***************************************** | |
| 866 * Parse a unittest definition: | |
| 867 * unittest { body } | |
| 868 * Current token is 'unittest'. | |
| 869 */ | |
| 870 | |
| 871 UnitTestDeclaration *Parser::parseUnitTest() | |
| 872 { | |
| 873 UnitTestDeclaration *f; | |
| 874 Statement *body; | |
| 875 Loc loc = this->loc; | |
| 876 | |
| 877 nextToken(); | |
| 878 | |
| 879 body = parseStatement(PScurly); | |
| 880 | |
| 881 f = new UnitTestDeclaration(loc, this->loc); | |
| 882 f->fbody = body; | |
| 883 return f; | |
| 884 } | |
| 885 | |
| 886 /***************************************** | |
| 887 * Parse a new definition: | |
| 888 * new(arguments) { body } | |
| 889 * Current token is 'new'. | |
| 890 */ | |
| 891 | |
| 892 NewDeclaration *Parser::parseNew() | |
| 893 { | |
| 894 NewDeclaration *f; | |
| 895 Arguments *arguments; | |
| 896 int varargs; | |
| 897 Loc loc = this->loc; | |
| 898 | |
| 899 nextToken(); | |
| 900 arguments = parseParameters(&varargs); | |
| 901 f = new NewDeclaration(loc, 0, arguments, varargs); | |
| 902 parseContracts(f); | |
| 903 return f; | |
| 904 } | |
| 905 | |
| 906 /***************************************** | |
| 907 * Parse a delete definition: | |
| 908 * delete(arguments) { body } | |
| 909 * Current token is 'delete'. | |
| 910 */ | |
| 911 | |
| 912 DeleteDeclaration *Parser::parseDelete() | |
| 913 { | |
| 914 DeleteDeclaration *f; | |
| 915 Arguments *arguments; | |
| 916 int varargs; | |
| 917 Loc loc = this->loc; | |
| 918 | |
| 919 nextToken(); | |
| 920 arguments = parseParameters(&varargs); | |
| 921 if (varargs) | |
| 922 error("... not allowed in delete function parameter list"); | |
| 923 f = new DeleteDeclaration(loc, 0, arguments); | |
| 924 parseContracts(f); | |
| 925 return f; | |
| 926 } | |
| 927 | |
| 928 /********************************************** | |
| 929 * Parse parameter list. | |
| 930 */ | |
| 931 | |
| 932 Arguments *Parser::parseParameters(int *pvarargs) | |
| 933 { | |
| 934 Arguments *arguments = new Arguments(); | |
| 935 int varargs = 0; | |
| 936 int hasdefault = 0; | |
| 937 | |
| 938 check(TOKlparen); | |
| 939 while (1) | |
| 940 { Type *tb; | |
| 941 Identifier *ai = NULL; | |
| 942 Type *at; | |
| 943 Argument *a; | |
| 944 unsigned storageClass; | |
| 945 Expression *ae; | |
| 946 | |
| 947 storageClass = STCin; // parameter is "in" by default | |
| 948 switch (token.value) | |
| 949 { | |
| 950 case TOKrparen: | |
| 951 break; | |
| 952 | |
| 953 case TOKdotdotdot: | |
| 954 varargs = 1; | |
| 955 nextToken(); | |
| 956 break; | |
| 957 | |
| 958 case TOKin: | |
| 959 storageClass = STCin; | |
| 960 nextToken(); | |
| 961 goto L1; | |
| 962 | |
| 963 case TOKout: | |
| 964 storageClass = STCout; | |
| 965 nextToken(); | |
| 966 goto L1; | |
| 967 | |
| 968 case TOKinout: | |
| 969 case TOKref: | |
| 970 storageClass = STCref; | |
| 971 nextToken(); | |
| 972 goto L1; | |
| 973 | |
| 974 case TOKlazy: | |
| 975 storageClass = STClazy; | |
| 976 nextToken(); | |
| 977 goto L1; | |
| 978 | |
| 979 default: | |
| 980 L1: | |
| 981 tb = parseBasicType(); | |
| 982 at = parseDeclarator(tb, &ai); | |
| 983 ae = NULL; | |
| 984 if (token.value == TOKassign) // = defaultArg | |
| 985 { nextToken(); | |
| 986 ae = parseAssignExp(); | |
| 987 hasdefault = 1; | |
| 988 } | |
| 989 else | |
| 990 { if (hasdefault) | |
| 991 error("default argument expected for %s", | |
| 992 ai ? ai->toChars() : at->toChars()); | |
| 993 } | |
| 994 if (token.value == TOKdotdotdot) | |
| 995 { /* This is: | |
| 996 * at ai ... | |
| 997 */ | |
| 998 | |
| 999 if (storageClass & (STCout | STCref)) | |
| 1000 error("variadic argument cannot be out or ref"); | |
| 1001 varargs = 2; | |
| 1002 a = new Argument(storageClass, at, ai, ae); | |
| 1003 arguments->push(a); | |
| 1004 nextToken(); | |
| 1005 break; | |
| 1006 } | |
| 1007 a = new Argument(storageClass, at, ai, ae); | |
| 1008 arguments->push(a); | |
| 1009 if (token.value == TOKcomma) | |
| 1010 { nextToken(); | |
| 1011 continue; | |
| 1012 } | |
| 1013 break; | |
| 1014 } | |
| 1015 break; | |
| 1016 } | |
| 1017 check(TOKrparen); | |
| 1018 *pvarargs = varargs; | |
| 1019 return arguments; | |
| 1020 } | |
| 1021 | |
| 1022 | |
| 1023 /************************************* | |
| 1024 */ | |
| 1025 | |
| 1026 EnumDeclaration *Parser::parseEnum() | |
| 1027 { EnumDeclaration *e; | |
| 1028 Identifier *id; | |
|
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1029 Type *memtype; |
| 336 | 1030 Loc loc = this->loc; |
| 1031 | |
| 1032 //printf("Parser::parseEnum()\n"); | |
| 1033 nextToken(); | |
| 1034 if (token.value == TOKidentifier) | |
| 1035 { id = token.ident; | |
| 1036 nextToken(); | |
| 1037 } | |
| 1038 else | |
| 1039 id = NULL; | |
| 1040 | |
| 1041 if (token.value == TOKcolon) | |
| 1042 { | |
| 1043 nextToken(); | |
|
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1044 memtype = parseBasicType(); |
| 336 | 1045 } |
| 1046 else | |
|
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1047 memtype = NULL; |
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1048 |
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1049 e = new EnumDeclaration(loc, id, memtype); |
| 336 | 1050 if (token.value == TOKsemicolon && id) |
| 1051 nextToken(); | |
| 1052 else if (token.value == TOKlcurly) | |
| 1053 { | |
| 1054 //printf("enum definition\n"); | |
| 1055 e->members = new Array(); | |
| 1056 nextToken(); | |
| 1057 unsigned char *comment = token.blockComment; | |
| 1058 while (token.value != TOKrcurly) | |
| 1059 { | |
| 1060 if (token.value == TOKidentifier) | |
| 1061 { EnumMember *em; | |
| 1062 Expression *value; | |
| 1063 Identifier *ident; | |
| 1064 | |
| 1065 loc = this->loc; | |
| 1066 ident = token.ident; | |
| 1067 value = NULL; | |
| 1068 nextToken(); | |
| 1069 if (token.value == TOKassign) | |
| 1070 { | |
| 1071 nextToken(); | |
| 1072 value = parseAssignExp(); | |
| 1073 } | |
| 1074 em = new EnumMember(loc, ident, value); | |
| 1075 e->members->push(em); | |
| 1076 if (token.value == TOKrcurly) | |
| 1077 ; | |
| 1078 else | |
| 1079 { addComment(em, comment); | |
| 1080 comment = NULL; | |
| 1081 check(TOKcomma); | |
| 1082 } | |
| 1083 addComment(em, comment); | |
| 1084 comment = token.blockComment; | |
| 1085 } | |
| 1086 else | |
| 1087 { error("enum member expected"); | |
| 1088 nextToken(); | |
| 1089 } | |
| 1090 } | |
| 1091 nextToken(); | |
| 1092 } | |
| 1093 else | |
| 1094 error("enum declaration is invalid"); | |
| 1095 | |
| 1096 //printf("-parseEnum() %s\n", e->toChars()); | |
| 1097 return e; | |
| 1098 } | |
| 1099 | |
|
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1100 /******************************** |
|
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1101 * Parse struct, union, interface, class. |
|
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1102 */ |
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|
1103 |
| 336 | 1104 Dsymbol *Parser::parseAggregate() |
| 1105 { AggregateDeclaration *a = NULL; | |
| 1106 int anon = 0; | |
| 1107 enum TOK tok; | |
| 1108 Identifier *id; | |
| 1109 TemplateParameters *tpl = NULL; | |
| 1110 | |
| 1111 //printf("Parser::parseAggregate()\n"); | |
| 1112 tok = token.value; | |
| 1113 nextToken(); | |
| 1114 if (token.value != TOKidentifier) | |
| 1115 { id = NULL; | |
| 1116 } | |
| 1117 else | |
| 1118 { id = token.ident; | |
| 1119 nextToken(); | |
| 1120 | |
| 1121 if (token.value == TOKlparen) | |
| 1122 { // Class template declaration. | |
| 1123 | |
| 1124 // Gather template parameter list | |
| 1125 tpl = parseTemplateParameterList(); | |
| 1126 } | |
| 1127 } | |
| 1128 | |
| 1129 Loc loc = this->loc; | |
| 1130 switch (tok) | |
| 1131 { case TOKclass: | |
| 1132 case TOKinterface: | |
| 1133 { | |
| 1134 if (!id) | |
| 1135 error("anonymous classes not allowed"); | |
| 1136 | |
| 1137 // Collect base class(es) | |
| 1138 BaseClasses *baseclasses = NULL; | |
| 1139 if (token.value == TOKcolon) | |
| 1140 { | |
| 1141 nextToken(); | |
| 1142 baseclasses = parseBaseClasses(); | |
| 1143 | |
| 1144 if (token.value != TOKlcurly) | |
| 1145 error("members expected"); | |
| 1146 } | |
| 1147 | |
| 1148 if (tok == TOKclass) | |
| 1149 a = new ClassDeclaration(loc, id, baseclasses); | |
| 1150 else | |
| 1151 a = new InterfaceDeclaration(loc, id, baseclasses); | |
| 1152 break; | |
| 1153 } | |
| 1154 | |
| 1155 case TOKstruct: | |
| 1156 if (id) | |
| 1157 a = new StructDeclaration(loc, id); | |
| 1158 else | |
| 1159 anon = 1; | |
| 1160 break; | |
| 1161 | |
| 1162 case TOKunion: | |
| 1163 if (id) | |
| 1164 a = new UnionDeclaration(loc, id); | |
| 1165 else | |
| 1166 anon = 2; | |
| 1167 break; | |
| 1168 | |
| 1169 default: | |
| 1170 assert(0); | |
| 1171 break; | |
| 1172 } | |
| 1173 if (a && token.value == TOKsemicolon) | |
| 1174 { nextToken(); | |
| 1175 } | |
| 1176 else if (token.value == TOKlcurly) | |
| 1177 { | |
| 1178 //printf("aggregate definition\n"); | |
| 1179 nextToken(); | |
| 1180 Array *decl = parseDeclDefs(0); | |
| 1181 if (token.value != TOKrcurly) | |
| 1182 error("} expected following member declarations in aggregate"); | |
| 1183 nextToken(); | |
| 1184 if (anon) | |
| 1185 { | |
| 1186 /* Anonymous structs/unions are more like attributes. | |
| 1187 */ | |
| 1188 return new AnonDeclaration(loc, anon - 1, decl); | |
| 1189 } | |
| 1190 else | |
| 1191 a->members = decl; | |
| 1192 } | |
| 1193 else | |
| 1194 { | |
| 1195 error("{ } expected following aggregate declaration"); | |
| 1196 a = new StructDeclaration(loc, NULL); | |
| 1197 } | |
| 1198 | |
| 1199 if (tpl) | |
| 1200 { Array *decldefs; | |
| 1201 TemplateDeclaration *tempdecl; | |
| 1202 | |
| 1203 // Wrap a template around the aggregate declaration | |
| 1204 decldefs = new Array(); | |
| 1205 decldefs->push(a); | |
|
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1206 tempdecl = new TemplateDeclaration(loc, id, tpl, NULL, decldefs); |
| 336 | 1207 return tempdecl; |
| 1208 } | |
| 1209 | |
| 1210 return a; | |
| 1211 } | |
| 1212 | |
| 1213 /******************************************* | |
| 1214 */ | |
| 1215 | |
| 1216 BaseClasses *Parser::parseBaseClasses() | |
| 1217 { | |
| 1218 enum PROT protection = PROTpublic; | |
| 1219 BaseClasses *baseclasses = new BaseClasses(); | |
| 1220 | |
| 1221 for (; 1; nextToken()) | |
| 1222 { | |
| 1223 switch (token.value) | |
| 1224 { | |
| 1225 case TOKidentifier: | |
| 1226 break; | |
| 1227 case TOKprivate: | |
| 1228 protection = PROTprivate; | |
| 1229 continue; | |
| 1230 case TOKpackage: | |
| 1231 protection = PROTpackage; | |
| 1232 continue; | |
| 1233 case TOKprotected: | |
| 1234 protection = PROTprotected; | |
| 1235 continue; | |
| 1236 case TOKpublic: | |
| 1237 protection = PROTpublic; | |
| 1238 continue; | |
| 1239 default: | |
| 1240 error("base classes expected instead of %s", token.toChars()); | |
| 1241 return NULL; | |
| 1242 } | |
| 1243 BaseClass *b = new BaseClass(parseBasicType(), protection); | |
| 1244 baseclasses->push(b); | |
| 1245 if (token.value != TOKcomma) | |
| 1246 break; | |
| 1247 protection = PROTpublic; | |
| 1248 } | |
| 1249 return baseclasses; | |
| 1250 } | |
| 1251 | |
| 1252 /************************************** | |
| 1253 * Parse constraint. | |
| 1254 * Constraint is of the form: | |
| 1255 * if ( ConstraintExpression ) | |
| 1256 */ | |
| 1257 | |
| 1258 #if DMDV2 | |
| 1259 Expression *Parser::parseConstraint() | |
| 1260 { Expression *e = NULL; | |
| 1261 | |
| 1262 if (token.value == TOKif) | |
| 1263 { | |
| 1264 nextToken(); // skip over 'if' | |
| 1265 check(TOKlparen); | |
| 1266 e = parseExpression(); | |
| 1267 check(TOKrparen); | |
| 1268 } | |
| 1269 return e; | |
| 1270 } | |
| 1271 #endif | |
| 1272 | |
| 1273 /************************************** | |
| 1274 * Parse a TemplateDeclaration. | |
| 1275 */ | |
| 1276 | |
| 1277 TemplateDeclaration *Parser::parseTemplateDeclaration() | |
| 1278 { | |
| 1279 TemplateDeclaration *tempdecl; | |
| 1280 Identifier *id; | |
| 1281 TemplateParameters *tpl; | |
| 1282 Array *decldefs; | |
| 1283 Loc loc = this->loc; | |
| 1284 | |
| 1285 nextToken(); | |
| 1286 if (token.value != TOKidentifier) | |
| 1287 { error("TemplateIdentifier expected following template"); | |
| 1288 goto Lerr; | |
| 1289 } | |
| 1290 id = token.ident; | |
| 1291 nextToken(); | |
| 1292 tpl = parseTemplateParameterList(); | |
| 1293 if (!tpl) | |
| 1294 goto Lerr; | |
| 1295 | |
| 1296 if (token.value != TOKlcurly) | |
| 1297 { error("members of template declaration expected"); | |
| 1298 goto Lerr; | |
| 1299 } | |
| 1300 else | |
| 1301 { | |
| 1302 nextToken(); | |
| 1303 decldefs = parseDeclDefs(0); | |
| 1304 if (token.value != TOKrcurly) | |
| 1305 { error("template member expected"); | |
| 1306 goto Lerr; | |
| 1307 } | |
| 1308 nextToken(); | |
| 1309 } | |
| 1310 | |
|
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|
1311 tempdecl = new TemplateDeclaration(loc, id, tpl, NULL, decldefs); |
| 336 | 1312 return tempdecl; |
| 1313 | |
| 1314 Lerr: | |
| 1315 return NULL; | |
| 1316 } | |
| 1317 | |
| 1318 /****************************************** | |
| 1319 * Parse template parameter list. | |
| 1320 */ | |
| 1321 | |
| 1322 TemplateParameters *Parser::parseTemplateParameterList() | |
| 1323 { | |
| 1324 TemplateParameters *tpl = new TemplateParameters(); | |
| 1325 | |
| 1326 if (token.value != TOKlparen) | |
| 1327 { error("parenthesized TemplateParameterList expected following TemplateIdentifier"); | |
| 1328 goto Lerr; | |
| 1329 } | |
| 1330 nextToken(); | |
| 1331 | |
| 1332 // Get array of TemplateParameters | |
| 1333 if (token.value != TOKrparen) | |
| 1334 { int isvariadic = 0; | |
| 1335 | |
| 1336 while (1) | |
| 1337 { TemplateParameter *tp; | |
| 1338 Identifier *tp_ident = NULL; | |
| 1339 Type *tp_spectype = NULL; | |
| 1340 Type *tp_valtype = NULL; | |
| 1341 Type *tp_defaulttype = NULL; | |
| 1342 Expression *tp_specvalue = NULL; | |
| 1343 Expression *tp_defaultvalue = NULL; | |
| 1344 Token *t; | |
| 1345 | |
| 1346 // Get TemplateParameter | |
| 1347 | |
| 1348 // First, look ahead to see if it is a TypeParameter or a ValueParameter | |
| 1349 t = peek(&token); | |
| 1350 if (token.value == TOKalias) | |
| 1351 { // AliasParameter | |
| 1352 nextToken(); | |
| 1353 if (token.value != TOKidentifier) | |
| 1354 { error("Identifier expected for template parameter"); | |
| 1355 goto Lerr; | |
| 1356 } | |
| 1357 tp_ident = token.ident; | |
| 1358 nextToken(); | |
| 1359 if (token.value == TOKcolon) // : Type | |
| 1360 { | |
| 1361 nextToken(); | |
| 1362 tp_spectype = parseBasicType(); | |
| 1363 tp_spectype = parseDeclarator(tp_spectype, NULL); | |
| 1364 } | |
| 1365 if (token.value == TOKassign) // = Type | |
| 1366 { | |
| 1367 nextToken(); | |
| 1368 tp_defaulttype = parseBasicType(); | |
| 1369 tp_defaulttype = parseDeclarator(tp_defaulttype, NULL); | |
| 1370 } | |
| 1371 tp = new TemplateAliasParameter(loc, tp_ident, tp_spectype, tp_defaulttype); | |
| 1372 } | |
| 1373 else if (t->value == TOKcolon || t->value == TOKassign || | |
| 1374 t->value == TOKcomma || t->value == TOKrparen) | |
| 1375 { // TypeParameter | |
| 1376 if (token.value != TOKidentifier) | |
| 1377 { error("Identifier expected for template parameter"); | |
| 1378 goto Lerr; | |
| 1379 } | |
| 1380 tp_ident = token.ident; | |
| 1381 nextToken(); | |
| 1382 if (token.value == TOKcolon) // : Type | |
| 1383 { | |
| 1384 nextToken(); | |
| 1385 tp_spectype = parseBasicType(); | |
| 1386 tp_spectype = parseDeclarator(tp_spectype, NULL); | |
| 1387 } | |
| 1388 if (token.value == TOKassign) // = Type | |
| 1389 { | |
| 1390 nextToken(); | |
| 1391 tp_defaulttype = parseBasicType(); | |
| 1392 tp_defaulttype = parseDeclarator(tp_defaulttype, NULL); | |
| 1393 } | |
| 1394 tp = new TemplateTypeParameter(loc, tp_ident, tp_spectype, tp_defaulttype); | |
| 1395 } | |
| 1396 else if (token.value == TOKidentifier && t->value == TOKdotdotdot) | |
| 1397 { // ident... | |
| 1398 if (isvariadic) | |
| 1399 error("variadic template parameter must be last"); | |
| 1400 isvariadic = 1; | |
| 1401 tp_ident = token.ident; | |
| 1402 nextToken(); | |
| 1403 nextToken(); | |
| 1404 tp = new TemplateTupleParameter(loc, tp_ident); | |
| 1405 } | |
| 1406 #if DMDV2 | |
| 1407 else if (token.value == TOKthis) | |
| 1408 { // ThisParameter | |
| 1409 nextToken(); | |
| 1410 if (token.value != TOKidentifier) | |
| 1411 { error("identifier expected for template this parameter"); | |
| 1412 goto Lerr; | |
| 1413 } | |
| 1414 tp_ident = token.ident; | |
| 1415 nextToken(); | |
| 1416 if (token.value == TOKcolon) // : Type | |
| 1417 { | |
| 1418 nextToken(); | |
| 1419 tp_spectype = parseType(); | |
| 1420 } | |
| 1421 if (token.value == TOKassign) // = Type | |
| 1422 { | |
| 1423 nextToken(); | |
| 1424 tp_defaulttype = parseType(); | |
| 1425 } | |
| 1426 tp = new TemplateThisParameter(loc, tp_ident, tp_spectype, tp_defaulttype); | |
| 1427 } | |
| 1428 #endif | |
| 1429 else | |
| 1430 { // ValueParameter | |
| 1431 tp_valtype = parseBasicType(); | |
| 1432 tp_valtype = parseDeclarator(tp_valtype, &tp_ident); | |
| 1433 if (!tp_ident) | |
| 1434 { | |
| 1435 error("identifier expected for template value parameter"); | |
| 1436 tp_ident = new Identifier("error", TOKidentifier); | |
| 1437 } | |
| 1438 if (token.value == TOKcolon) // : CondExpression | |
| 1439 { | |
| 1440 nextToken(); | |
| 1441 tp_specvalue = parseCondExp(); | |
| 1442 } | |
| 1443 if (token.value == TOKassign) // = CondExpression | |
| 1444 { | |
| 1445 nextToken(); | |
| 1446 tp_defaultvalue = parseCondExp(); | |
| 1447 } | |
| 1448 tp = new TemplateValueParameter(loc, tp_ident, tp_valtype, tp_specvalue, tp_defaultvalue); | |
| 1449 } | |
| 1450 tpl->push(tp); | |
| 1451 if (token.value != TOKcomma) | |
| 1452 break; | |
| 1453 nextToken(); | |
| 1454 } | |
| 1455 } | |
| 1456 check(TOKrparen); | |
| 1457 Lerr: | |
| 1458 return tpl; | |
| 1459 } | |
| 1460 | |
| 1461 /****************************************** | |
| 1462 * Parse template mixin. | |
| 1463 * mixin Foo; | |
| 1464 * mixin Foo!(args); | |
| 1465 * mixin a.b.c!(args).Foo!(args); | |
| 1466 * mixin Foo!(args) identifier; | |
| 1467 * mixin typeof(expr).identifier!(args); | |
| 1468 */ | |
| 1469 | |
| 1470 Dsymbol *Parser::parseMixin() | |
| 1471 { | |
| 1472 TemplateMixin *tm; | |
| 1473 Identifier *id; | |
| 1474 Type *tqual; | |
| 1475 Objects *tiargs; | |
| 1476 Array *idents; | |
| 1477 | |
| 1478 //printf("parseMixin()\n"); | |
| 1479 nextToken(); | |
| 1480 tqual = NULL; | |
| 1481 if (token.value == TOKdot) | |
| 1482 { | |
| 1483 id = Id::empty; | |
| 1484 } | |
| 1485 else | |
| 1486 { | |
| 1487 if (token.value == TOKtypeof) | |
| 1488 { Expression *exp; | |
| 1489 | |
| 1490 nextToken(); | |
| 1491 check(TOKlparen); | |
| 1492 exp = parseExpression(); | |
| 1493 check(TOKrparen); | |
| 1494 tqual = new TypeTypeof(loc, exp); | |
| 1495 check(TOKdot); | |
| 1496 } | |
| 1497 if (token.value != TOKidentifier) | |
| 1498 { | |
| 1499 error("identifier expected, not %s", token.toChars()); | |
| 1500 id = Id::empty; | |
| 1501 } | |
| 1502 else | |
| 1503 id = token.ident; | |
| 1504 nextToken(); | |
| 1505 } | |
| 1506 | |
| 1507 idents = new Array(); | |
| 1508 while (1) | |
| 1509 { | |
| 1510 tiargs = NULL; | |
| 1511 if (token.value == TOKnot) | |
| 1512 { | |
| 1513 nextToken(); | |
| 1514 tiargs = parseTemplateArgumentList(); | |
| 1515 } | |
| 1516 | |
| 1517 if (token.value != TOKdot) | |
| 1518 break; | |
| 1519 | |
| 1520 if (tiargs) | |
| 1521 { TemplateInstance *tempinst = new TemplateInstance(loc, id); | |
| 1522 tempinst->tiargs = tiargs; | |
| 1523 id = (Identifier *)tempinst; | |
| 1524 tiargs = NULL; | |
| 1525 } | |
| 1526 idents->push(id); | |
| 1527 | |
| 1528 nextToken(); | |
| 1529 if (token.value != TOKidentifier) | |
| 1530 { error("identifier expected following '.' instead of '%s'", token.toChars()); | |
| 1531 break; | |
| 1532 } | |
| 1533 id = token.ident; | |
| 1534 nextToken(); | |
| 1535 } | |
| 1536 idents->push(id); | |
| 1537 | |
| 1538 if (token.value == TOKidentifier) | |
| 1539 { | |
| 1540 id = token.ident; | |
| 1541 nextToken(); | |
| 1542 } | |
| 1543 else | |
| 1544 id = NULL; | |
| 1545 | |
| 1546 tm = new TemplateMixin(loc, id, tqual, idents, tiargs); | |
| 1547 if (token.value != TOKsemicolon) | |
| 1548 error("';' expected after mixin"); | |
| 1549 nextToken(); | |
| 1550 | |
| 1551 return tm; | |
| 1552 } | |
| 1553 | |
| 1554 /****************************************** | |
| 1555 * Parse template argument list. | |
| 1556 * Input: | |
| 1557 * current token is opening '(' | |
| 1558 * Output: | |
| 1559 * current token is one after closing ')' | |
| 1560 */ | |
| 1561 | |
| 1562 Objects *Parser::parseTemplateArgumentList() | |
| 1563 { | |
| 1564 //printf("Parser::parseTemplateArgumentList()\n"); | |
| 1565 Objects *tiargs = new Objects(); | |
| 1566 if (token.value != TOKlparen) | |
| 1567 { error("!(TemplateArgumentList) expected following TemplateIdentifier"); | |
| 1568 return tiargs; | |
| 1569 } | |
| 1570 nextToken(); | |
| 1571 | |
| 1572 // Get TemplateArgumentList | |
| 1573 if (token.value != TOKrparen) | |
| 1574 { | |
| 1575 while (1) | |
| 1576 { | |
| 1577 // See if it is an Expression or a Type | |
| 1578 if (isDeclaration(&token, 0, TOKreserved, NULL)) | |
| 1579 { // Type | |
| 1580 Type *ta; | |
| 1581 | |
| 1582 // Get TemplateArgument | |
| 1583 ta = parseBasicType(); | |
| 1584 ta = parseDeclarator(ta, NULL); | |
| 1585 tiargs->push(ta); | |
| 1586 } | |
| 1587 else | |
| 1588 { // Expression | |
| 1589 Expression *ea; | |
| 1590 | |
| 1591 ea = parseAssignExp(); | |
| 1592 tiargs->push(ea); | |
| 1593 } | |
| 1594 if (token.value != TOKcomma) | |
| 1595 break; | |
| 1596 nextToken(); | |
| 1597 } | |
| 1598 } | |
| 1599 check(TOKrparen, "template argument list"); | |
| 1600 return tiargs; | |
| 1601 } | |
| 1602 | |
| 1603 Import *Parser::parseImport(Array *decldefs, int isstatic) | |
| 1604 { Import *s; | |
| 1605 Identifier *id; | |
| 1606 Identifier *aliasid = NULL; | |
| 1607 Array *a; | |
| 1608 Loc loc; | |
| 1609 | |
| 1610 //printf("Parser::parseImport()\n"); | |
| 1611 do | |
| 1612 { | |
| 1613 L1: | |
| 1614 nextToken(); | |
| 1615 if (token.value != TOKidentifier) | |
| 1616 { error("Identifier expected following import"); | |
| 1617 break; | |
| 1618 } | |
| 1619 | |
| 1620 loc = this->loc; | |
| 1621 a = NULL; | |
| 1622 id = token.ident; | |
| 1623 nextToken(); | |
| 1624 if (!aliasid && token.value == TOKassign) | |
| 1625 { | |
| 1626 aliasid = id; | |
| 1627 goto L1; | |
| 1628 } | |
| 1629 while (token.value == TOKdot) | |
| 1630 { | |
| 1631 if (!a) | |
| 1632 a = new Array(); | |
| 1633 a->push(id); | |
| 1634 nextToken(); | |
| 1635 if (token.value != TOKidentifier) | |
| 1636 { error("Identifier expected following package"); | |
| 1637 break; | |
| 1638 } | |
| 1639 id = token.ident; | |
| 1640 nextToken(); | |
| 1641 } | |
| 1642 | |
| 1643 s = new Import(loc, a, token.ident, aliasid, isstatic); | |
| 1644 decldefs->push(s); | |
| 1645 | |
| 1646 /* Look for | |
| 1647 * : alias=name, alias=name; | |
| 1648 * syntax. | |
| 1649 */ | |
| 1650 if (token.value == TOKcolon) | |
| 1651 { | |
| 1652 do | |
| 1653 { Identifier *name; | |
| 1654 Identifier *alias; | |
| 1655 | |
| 1656 nextToken(); | |
| 1657 if (token.value != TOKidentifier) | |
| 1658 { error("Identifier expected following :"); | |
| 1659 break; | |
| 1660 } | |
| 1661 alias = token.ident; | |
| 1662 nextToken(); | |
| 1663 if (token.value == TOKassign) | |
| 1664 { | |
| 1665 nextToken(); | |
| 1666 if (token.value != TOKidentifier) | |
| 1667 { error("Identifier expected following %s=", alias->toChars()); | |
| 1668 break; | |
| 1669 } | |
| 1670 name = token.ident; | |
| 1671 nextToken(); | |
| 1672 } | |
| 1673 else | |
| 1674 { name = alias; | |
| 1675 alias = NULL; | |
| 1676 } | |
| 1677 s->addAlias(name, alias); | |
| 1678 } while (token.value == TOKcomma); | |
| 1679 break; // no comma-separated imports of this form | |
| 1680 } | |
| 1681 | |
| 1682 aliasid = NULL; | |
| 1683 } while (token.value == TOKcomma); | |
| 1684 | |
| 1685 if (token.value == TOKsemicolon) | |
| 1686 nextToken(); | |
| 1687 else | |
| 1688 { | |
| 1689 error("';' expected"); | |
| 1690 nextToken(); | |
| 1691 } | |
| 1692 | |
| 1693 return NULL; | |
| 1694 } | |
| 1695 | |
|
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parents:
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diff
changeset
|
1696 #if DMDV2 |
|
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parents:
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diff
changeset
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1697 Type *Parser::parseType(Identifier **pident, TemplateParameters **tpl) |
|
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parents:
1165
diff
changeset
|
1698 { Type *t; |
|
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Merged DMD 1.042.
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parents:
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diff
changeset
|
1699 |
|
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1700 /* Take care of the storage class prefixes that |
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1701 * serve as type attributes: |
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1702 * const shared, shared const, const, invariant, shared |
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1703 */ |
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1704 if (token.value == TOKconst && peekNext() == TOKshared && peekNext2() != TOKlparen || |
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1705 token.value == TOKshared && peekNext() == TOKconst && peekNext2() != TOKlparen) |
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1706 { |
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1707 nextToken(); |
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1708 nextToken(); |
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1709 /* shared const type |
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1710 */ |
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1711 t = parseType(pident, tpl); |
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1712 t = t->makeSharedConst(); |
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1713 return t; |
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1714 } |
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1715 else if (token.value == TOKconst && peekNext() != TOKlparen) |
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1716 { |
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1717 nextToken(); |
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1718 /* const type |
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1719 */ |
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1720 t = parseType(pident, tpl); |
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1721 t = t->makeConst(); |
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1722 return t; |
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1723 } |
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1724 else if ((token.value == TOKinvariant || token.value == TOKimmutable) && |
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1725 peekNext() != TOKlparen) |
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1726 { |
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1727 nextToken(); |
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1728 /* invariant type |
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1729 */ |
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1730 t = parseType(pident, tpl); |
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1731 t = t->makeInvariant(); |
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1732 return t; |
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1733 } |
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1734 else if (token.value == TOKshared && peekNext() != TOKlparen) |
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1735 { |
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1736 nextToken(); |
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1737 /* shared type |
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1738 */ |
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1739 t = parseType(pident, tpl); |
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1740 t = t->makeShared(); |
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1741 return t; |
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1742 } |
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1743 else |
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1744 t = parseBasicType(); |
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1745 t = parseDeclarator(t, pident, tpl); |
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1746 return t; |
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1747 } |
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1748 #endif |
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1749 |
| 336 | 1750 Type *Parser::parseBasicType() |
| 1751 { Type *t; | |
| 1752 Identifier *id; | |
| 1753 TypeQualified *tid; | |
| 1754 TemplateInstance *tempinst; | |
| 1755 | |
| 1756 //printf("parseBasicType()\n"); | |
| 1757 switch (token.value) | |
| 1758 { | |
| 1759 CASE_BASIC_TYPES_X(t): | |
| 1760 nextToken(); | |
| 1761 break; | |
| 1762 | |
| 1763 case TOKidentifier: | |
| 1764 id = token.ident; | |
| 1765 nextToken(); | |
| 1766 if (token.value == TOKnot) | |
| 1767 { | |
| 1768 nextToken(); | |
| 1769 tempinst = new TemplateInstance(loc, id); | |
| 1770 tempinst->tiargs = parseTemplateArgumentList(); | |
| 1771 tid = new TypeInstance(loc, tempinst); | |
| 1772 goto Lident2; | |
| 1773 } | |
| 1774 Lident: | |
| 1775 tid = new TypeIdentifier(loc, id); | |
| 1776 Lident2: | |
| 1777 while (token.value == TOKdot) | |
| 1778 { nextToken(); | |
| 1779 if (token.value != TOKidentifier) | |
| 1780 { error("identifier expected following '.' instead of '%s'", token.toChars()); | |
| 1781 break; | |
| 1782 } | |
| 1783 id = token.ident; | |
| 1784 nextToken(); | |
| 1785 if (token.value == TOKnot) | |
| 1786 { | |
| 1787 nextToken(); | |
| 1788 tempinst = new TemplateInstance(loc, id); | |
| 1789 tempinst->tiargs = parseTemplateArgumentList(); | |
| 1790 tid->addIdent((Identifier *)tempinst); | |
| 1791 } | |
| 1792 else | |
| 1793 tid->addIdent(id); | |
| 1794 } | |
| 1795 t = tid; | |
| 1796 break; | |
| 1797 | |
| 1798 case TOKdot: | |
| 1799 // Leading . as in .foo | |
| 1800 id = Id::empty; | |
| 1801 goto Lident; | |
| 1802 | |
| 1803 case TOKtypeof: | |
| 1804 { Expression *exp; | |
| 1805 | |
| 1806 nextToken(); | |
| 1807 check(TOKlparen); | |
| 1808 exp = parseExpression(); | |
| 1809 check(TOKrparen); | |
| 1810 tid = new TypeTypeof(loc, exp); | |
| 1811 goto Lident2; | |
| 1812 } | |
| 1813 | |
| 1814 default: | |
| 1815 error("basic type expected, not %s", token.toChars()); | |
| 1816 t = Type::tint32; | |
| 1817 break; | |
| 1818 } | |
| 1819 return t; | |
| 1820 } | |
| 1821 | |
| 1822 /****************************************** | |
| 1823 * Parse things that follow the initial type t. | |
| 1824 * t * | |
| 1825 * t [] | |
| 1826 * t [type] | |
| 1827 * t [expression] | |
| 1828 * t [expression .. expression] | |
| 1829 * t function | |
| 1830 * t delegate | |
| 1831 */ | |
| 1832 | |
| 1833 Type *Parser::parseBasicType2(Type *t) | |
| 1834 { | |
| 1835 Type *ts; | |
| 1836 Type *ta; | |
| 1837 | |
| 1838 //printf("parseBasicType2()\n"); | |
| 1839 while (1) | |
| 1840 { | |
| 1841 switch (token.value) | |
| 1842 { | |
| 1843 case TOKmul: | |
| 1844 t = new TypePointer(t); | |
| 1845 nextToken(); | |
| 1846 continue; | |
| 1847 | |
| 1848 case TOKlbracket: | |
| 1849 #if LTORARRAYDECL | |
| 1850 // Handle []. Make sure things like | |
| 1851 // int[3][1] a; | |
| 1852 // is (array[1] of array[3] of int) | |
| 1853 nextToken(); | |
| 1854 if (token.value == TOKrbracket) | |
| 1855 { | |
| 1856 t = new TypeDArray(t); // [] | |
| 1857 nextToken(); | |
| 1858 } | |
| 1859 else if (isDeclaration(&token, 0, TOKrbracket, NULL)) | |
| 1860 { // It's an associative array declaration | |
| 1861 Type *index; | |
| 1862 | |
| 1863 //printf("it's an associative array\n"); | |
| 1864 index = parseBasicType(); | |
| 1865 index = parseDeclarator(index, NULL); // [ type ] | |
| 1866 t = new TypeAArray(t, index); | |
| 1867 check(TOKrbracket); | |
| 1868 } | |
| 1869 else | |
| 1870 { | |
| 1871 //printf("it's [expression]\n"); | |
| 1872 inBrackets++; | |
| 1873 Expression *e = parseExpression(); // [ expression ] | |
| 1874 if (token.value == TOKslice) | |
| 1875 { Expression *e2; | |
| 1876 | |
| 1877 nextToken(); | |
| 1878 e2 = parseExpression(); // [ exp .. exp ] | |
| 1879 t = new TypeSlice(t, e, e2); | |
| 1880 } | |
| 1881 else | |
| 1882 t = new TypeSArray(t,e); | |
| 1883 inBrackets--; | |
| 1884 check(TOKrbracket); | |
| 1885 } | |
| 1886 continue; | |
| 1887 #else | |
| 1888 // Handle []. Make sure things like | |
| 1889 // int[3][1] a; | |
| 1890 // is (array[3] of array[1] of int) | |
| 1891 ts = t; | |
| 1892 while (token.value == TOKlbracket) | |
| 1893 { | |
| 1894 nextToken(); | |
| 1895 if (token.value == TOKrbracket) | |
| 1896 { | |
| 1897 ta = new TypeDArray(t); // [] | |
| 1898 nextToken(); | |
| 1899 } | |
| 1900 else if (isDeclaration(&token, 0, TOKrbracket, NULL)) | |
| 1901 { // It's an associative array declaration | |
| 1902 Type *index; | |
| 1903 | |
| 1904 //printf("it's an associative array\n"); | |
| 1905 index = parseBasicType(); | |
| 1906 index = parseDeclarator(index, NULL); // [ type ] | |
| 1907 check(TOKrbracket); | |
| 1908 ta = new TypeAArray(t, index); | |
| 1909 } | |
| 1910 else | |
| 1911 { | |
| 1912 //printf("it's [expression]\n"); | |
| 1913 Expression *e = parseExpression(); // [ expression ] | |
| 1914 ta = new TypeSArray(t,e); | |
| 1915 check(TOKrbracket); | |
| 1916 } | |
| 1917 Type **pt; | |
| 1918 for (pt = &ts; *pt != t; pt = &(*pt)->next) | |
| 1919 ; | |
| 1920 *pt = ta; | |
| 1921 } | |
| 1922 t = ts; | |
| 1923 continue; | |
| 1924 #endif | |
| 1925 | |
| 1926 case TOKdelegate: | |
| 1927 case TOKfunction: | |
| 1928 { // Handle delegate declaration: | |
| 1929 // t delegate(parameter list) | |
| 1930 // t function(parameter list) | |
| 1931 Arguments *arguments; | |
| 1932 int varargs; | |
| 1933 enum TOK save = token.value; | |
| 1934 | |
| 1935 nextToken(); | |
| 1936 arguments = parseParameters(&varargs); | |
| 1937 t = new TypeFunction(arguments, t, varargs, linkage); | |
| 1938 if (save == TOKdelegate) | |
| 1939 t = new TypeDelegate(t); | |
| 1940 else | |
| 1941 t = new TypePointer(t); // pointer to function | |
| 1942 continue; | |
| 1943 } | |
| 1944 | |
| 1945 default: | |
| 1946 ts = t; | |
| 1947 break; | |
| 1948 } | |
| 1949 break; | |
| 1950 } | |
| 1951 return ts; | |
| 1952 } | |
| 1953 | |
| 1954 Type *Parser::parseDeclarator(Type *t, Identifier **pident, TemplateParameters **tpl) | |
| 1955 { Type *ts; | |
| 1956 Type *ta; | |
| 1957 | |
| 1958 //printf("parseDeclarator(tpl = %p)\n", tpl); | |
| 1959 t = parseBasicType2(t); | |
| 1960 | |
| 1961 switch (token.value) | |
| 1962 { | |
| 1963 | |
| 1964 case TOKidentifier: | |
| 1965 if (pident) | |
| 1966 *pident = token.ident; | |
| 1967 else | |
| 1968 error("unexpected identifer '%s' in declarator", token.ident->toChars()); | |
| 1969 ts = t; | |
| 1970 nextToken(); | |
| 1971 break; | |
| 1972 | |
| 1973 case TOKlparen: | |
| 1974 /* Parse things with parentheses around the identifier, like: | |
| 1975 * int (*ident[3])[] | |
| 1976 * although the D style would be: | |
| 1977 * int[]*[3] ident | |
| 1978 */ | |
| 1979 nextToken(); | |
| 1980 ts = parseDeclarator(t, pident); | |
| 1981 check(TOKrparen); | |
| 1982 break; | |
| 1983 | |
| 1984 default: | |
| 1985 ts = t; | |
| 1986 break; | |
| 1987 } | |
| 1988 | |
|
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1989 // parse DeclaratorSuffixes |
| 336 | 1990 while (1) |
| 1991 { | |
| 1992 switch (token.value) | |
| 1993 { | |
| 1994 #if CARRAYDECL | |
| 1995 /* Support C style array syntax: | |
| 1996 * int ident[] | |
| 1997 * as opposed to D-style: | |
| 1998 * int[] ident | |
| 1999 */ | |
| 2000 case TOKlbracket: | |
| 2001 { // This is the old C-style post [] syntax. | |
| 2002 nextToken(); | |
| 2003 if (token.value == TOKrbracket) | |
| 2004 { // It's a dynamic array | |
| 2005 ta = new TypeDArray(t); // [] | |
| 2006 nextToken(); | |
| 2007 } | |
| 2008 else if (isDeclaration(&token, 0, TOKrbracket, NULL)) | |
| 2009 { // It's an associative array declaration | |
| 2010 Type *index; | |
| 2011 | |
| 2012 //printf("it's an associative array\n"); | |
| 2013 index = parseBasicType(); | |
| 2014 index = parseDeclarator(index, NULL); // [ type ] | |
| 2015 check(TOKrbracket); | |
| 2016 ta = new TypeAArray(t, index); | |
| 2017 } | |
| 2018 else | |
| 2019 { | |
| 2020 //printf("it's [expression]\n"); | |
| 2021 Expression *e = parseExpression(); // [ expression ] | |
| 2022 ta = new TypeSArray(t, e); | |
| 2023 check(TOKrbracket); | |
| 2024 } | |
|
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2025 |
| 336 | 2026 /* Insert ta into |
| 2027 * ts -> ... -> t | |
| 2028 * so that | |
| 2029 * ts -> ... -> ta -> t | |
| 2030 */ | |
| 2031 Type **pt; | |
| 2032 for (pt = &ts; *pt != t; pt = &(*pt)->next) | |
| 2033 ; | |
| 2034 *pt = ta; | |
| 2035 continue; | |
| 2036 } | |
| 2037 #endif | |
| 2038 case TOKlparen: | |
| 2039 { Arguments *arguments; | |
| 2040 int varargs; | |
| 2041 | |
| 2042 if (tpl) | |
| 2043 { | |
| 2044 /* Look ahead to see if this is (...)(...), | |
| 2045 * i.e. a function template declaration | |
| 2046 */ | |
| 2047 if (peekPastParen(&token)->value == TOKlparen) | |
| 2048 { // It's a function template declaration | |
| 2049 //printf("function template declaration\n"); | |
| 2050 | |
| 2051 // Gather template parameter list | |
| 2052 *tpl = parseTemplateParameterList(); | |
| 2053 } | |
| 2054 } | |
| 2055 | |
| 2056 arguments = parseParameters(&varargs); | |
| 2057 Type *ta = new TypeFunction(arguments, t, varargs, linkage); | |
| 2058 Type **pt; | |
| 2059 for (pt = &ts; *pt != t; pt = &(*pt)->next) | |
| 2060 ; | |
| 2061 *pt = ta; | |
| 2062 break; | |
| 2063 } | |
| 2064 } | |
| 2065 break; | |
| 2066 } | |
| 2067 | |
| 2068 return ts; | |
| 2069 } | |
| 2070 | |
| 2071 /********************************** | |
| 2072 * Parse Declarations. | |
| 2073 * These can be: | |
| 2074 * 1. declarations at global/class level | |
| 2075 * 2. declarations at statement level | |
| 2076 * Return array of Declaration *'s. | |
| 2077 */ | |
| 2078 | |
| 2079 Array *Parser::parseDeclarations() | |
| 2080 { | |
| 2081 enum STC storage_class; | |
| 2082 enum STC stc; | |
| 2083 Type *ts; | |
| 2084 Type *t; | |
| 2085 Type *tfirst; | |
| 2086 Identifier *ident; | |
| 2087 Array *a; | |
|
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2088 enum TOK tok = TOKreserved; |
| 336 | 2089 unsigned char *comment = token.blockComment; |
| 2090 enum LINK link = linkage; | |
| 2091 | |
| 2092 //printf("parseDeclarations()\n"); | |
| 2093 switch (token.value) | |
| 2094 { | |
| 2095 case TOKtypedef: | |
| 2096 case TOKalias: | |
| 2097 tok = token.value; | |
| 2098 nextToken(); | |
| 2099 break; | |
| 2100 | |
| 2101 default: | |
| 2102 tok = TOKreserved; | |
| 2103 break; | |
| 2104 } | |
| 2105 | |
| 2106 storage_class = STCundefined; | |
| 2107 while (1) | |
| 2108 { | |
| 2109 switch (token.value) | |
| 2110 { | |
| 2111 case TOKconst: stc = STCconst; goto L1; | |
| 2112 case TOKstatic: stc = STCstatic; goto L1; | |
| 2113 case TOKfinal: stc = STCfinal; goto L1; | |
| 2114 case TOKauto: stc = STCauto; goto L1; | |
| 2115 case TOKscope: stc = STCscope; goto L1; | |
| 2116 case TOKoverride: stc = STCoverride; goto L1; | |
| 2117 case TOKabstract: stc = STCabstract; goto L1; | |
| 2118 case TOKsynchronized: stc = STCsynchronized; goto L1; | |
| 2119 case TOKdeprecated: stc = STCdeprecated; goto L1; | |
|
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Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
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diff
changeset
|
2120 #if DMDV2 |
|
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Merged DMD 1.042.
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diff
changeset
|
2121 case TOKnothrow: stc = STCnothrow; goto L1; |
|
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
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diff
changeset
|
2122 case TOKpure: stc = STCpure; goto L1; |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
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diff
changeset
|
2123 case TOKref: stc = STCref; goto L1; |
|
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
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diff
changeset
|
2124 case TOKtls: stc = STCtls; goto L1; |
|
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
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diff
changeset
|
2125 case TOKenum: stc = STCmanifest; goto L1; |
|
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
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diff
changeset
|
2126 #endif |
| 336 | 2127 L1: |
| 2128 if (storage_class & stc) | |
| 2129 error("redundant storage class '%s'", token.toChars()); | |
| 2130 storage_class = (STC) (storage_class | stc); | |
| 2131 nextToken(); | |
| 2132 continue; | |
| 2133 | |
| 2134 case TOKextern: | |
| 2135 if (peek(&token)->value != TOKlparen) | |
| 2136 { stc = STCextern; | |
| 2137 goto L1; | |
| 2138 } | |
| 2139 | |
| 2140 link = parseLinkage(); | |
| 2141 continue; | |
| 2142 | |
| 2143 default: | |
| 2144 break; | |
| 2145 } | |
| 2146 break; | |
| 2147 } | |
| 2148 | |
| 2149 a = new Array(); | |
| 2150 | |
| 2151 /* Look for auto initializers: | |
| 2152 * storage_class identifier = initializer; | |
| 2153 */ | |
| 2154 while (storage_class && | |
| 2155 token.value == TOKidentifier && | |
| 2156 peek(&token)->value == TOKassign) | |
| 2157 { | |
| 2158 ident = token.ident; | |
| 2159 nextToken(); | |
| 2160 nextToken(); | |
| 2161 Initializer *init = parseInitializer(); | |
| 2162 VarDeclaration *v = new VarDeclaration(loc, NULL, ident, init); | |
| 2163 v->storage_class = storage_class; | |
| 2164 a->push(v); | |
| 2165 if (token.value == TOKsemicolon) | |
| 2166 { | |
| 2167 nextToken(); | |
| 2168 addComment(v, comment); | |
| 2169 } | |
| 2170 else if (token.value == TOKcomma) | |
| 2171 { | |
| 2172 nextToken(); | |
| 2173 if (!(token.value == TOKidentifier && peek(&token)->value == TOKassign)) | |
| 2174 { | |
| 2175 error("Identifier expected following comma"); | |
| 2176 } | |
| 2177 else | |
| 2178 continue; | |
| 2179 } | |
| 2180 else | |
| 2181 error("semicolon expected following auto declaration, not '%s'", token.toChars()); | |
| 2182 return a; | |
| 2183 } | |
| 2184 | |
| 2185 if (token.value == TOKclass) | |
| 2186 { AggregateDeclaration *s; | |
| 2187 | |
| 2188 s = (AggregateDeclaration *)parseAggregate(); | |
| 2189 s->storage_class |= storage_class; | |
| 2190 a->push(s); | |
| 2191 addComment(s, comment); | |
| 2192 return a; | |
| 2193 } | |
| 2194 | |
| 2195 ts = parseBasicType(); | |
| 2196 ts = parseBasicType2(ts); | |
| 2197 tfirst = NULL; | |
| 2198 | |
| 2199 while (1) | |
| 2200 { | |
| 2201 Loc loc = this->loc; | |
| 2202 TemplateParameters *tpl = NULL; | |
| 2203 | |
| 2204 ident = NULL; | |
| 2205 t = parseDeclarator(ts, &ident, &tpl); | |
| 2206 assert(t); | |
| 2207 if (!tfirst) | |
| 2208 tfirst = t; | |
| 2209 else if (t != tfirst) | |
| 2210 error("multiple declarations must have the same type, not %s and %s", | |
| 2211 tfirst->toChars(), t->toChars()); | |
| 2212 if (!ident) | |
| 2213 error("no identifier for declarator %s", t->toChars()); | |
| 2214 | |
| 2215 if (tok == TOKtypedef || tok == TOKalias) | |
| 2216 { Declaration *v; | |
|
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
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diff
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|
2217 Initializer *init = NULL; |
|
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diff
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|
2218 |
| 336 | 2219 if (token.value == TOKassign) |
| 2220 { | |
| 2221 nextToken(); | |
| 2222 init = parseInitializer(); | |
| 2223 } | |
| 2224 if (tok == TOKtypedef) | |
| 2225 v = new TypedefDeclaration(loc, ident, t, init); | |
| 2226 else | |
| 2227 { if (init) | |
| 2228 error("alias cannot have initializer"); | |
| 2229 v = new AliasDeclaration(loc, ident, t); | |
| 2230 } | |
| 2231 v->storage_class = storage_class; | |
| 2232 if (link == linkage) | |
| 2233 a->push(v); | |
| 2234 else | |
| 2235 { | |
| 2236 Array *ax = new Array(); | |
| 2237 ax->push(v); | |
| 2238 Dsymbol *s = new LinkDeclaration(link, ax); | |
| 2239 a->push(s); | |
| 2240 } | |
| 2241 switch (token.value) | |
| 2242 { case TOKsemicolon: | |
| 2243 nextToken(); | |
| 2244 addComment(v, comment); | |
| 2245 break; | |
| 2246 | |
| 2247 case TOKcomma: | |
| 2248 nextToken(); | |
| 2249 addComment(v, comment); | |
| 2250 continue; | |
| 2251 | |
| 2252 default: | |
| 2253 error("semicolon expected to close %s declaration", Token::toChars(tok)); | |
| 2254 break; | |
| 2255 } | |
| 2256 } | |
| 2257 else if (t->ty == Tfunction) | |
|
1195
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
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diff
changeset
|
2258 { FuncDeclaration *f = |
|
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
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diff
changeset
|
2259 new FuncDeclaration(loc, 0, ident, storage_class, t); |
| 336 | 2260 addComment(f, comment); |
| 2261 parseContracts(f); | |
| 2262 addComment(f, NULL); | |
|
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Merged DMD 1.042.
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parents:
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diff
changeset
|
2263 Dsymbol *s; |
| 336 | 2264 if (link == linkage) |
| 2265 { | |
| 2266 s = f; | |
| 2267 } | |
| 2268 else | |
| 2269 { | |
| 2270 Array *ax = new Array(); | |
| 2271 ax->push(f); | |
| 2272 s = new LinkDeclaration(link, ax); | |
| 2273 } | |
| 2274 if (tpl) // it's a function template | |
| 2275 { Array *decldefs; | |
| 2276 TemplateDeclaration *tempdecl; | |
| 2277 | |
| 2278 // Wrap a template around the aggregate declaration | |
| 2279 decldefs = new Array(); | |
| 2280 decldefs->push(s); | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
2281 tempdecl = new TemplateDeclaration(loc, s->ident, tpl, NULL, decldefs); |
| 336 | 2282 s = tempdecl; |
| 2283 } | |
| 2284 addComment(s, comment); | |
| 2285 a->push(s); | |
| 2286 } | |
| 2287 else | |
|
1195
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
2288 { |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
2289 Initializer *init = NULL; |
| 336 | 2290 if (token.value == TOKassign) |
| 2291 { | |
| 2292 nextToken(); | |
| 2293 init = parseInitializer(); | |
| 2294 } | |
|
1195
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
2295 |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
2296 VarDeclaration *v = new VarDeclaration(loc, t, ident, init); |
| 336 | 2297 v->storage_class = storage_class; |
| 2298 if (link == linkage) | |
| 2299 a->push(v); | |
| 2300 else | |
| 2301 { | |
| 2302 Array *ax = new Array(); | |
| 2303 ax->push(v); | |
| 2304 Dsymbol *s = new LinkDeclaration(link, ax); | |
| 2305 a->push(s); | |
| 2306 } | |
| 2307 switch (token.value) | |
| 2308 { case TOKsemicolon: | |
| 2309 nextToken(); | |
| 2310 addComment(v, comment); | |
| 2311 break; | |
| 2312 | |
| 2313 case TOKcomma: | |
| 2314 nextToken(); | |
| 2315 addComment(v, comment); | |
| 2316 continue; | |
| 2317 | |
| 2318 default: | |
| 2319 error("semicolon expected, not '%s'", token.toChars()); | |
| 2320 break; | |
| 2321 } | |
| 2322 } | |
| 2323 break; | |
| 2324 } | |
| 2325 return a; | |
| 2326 } | |
| 2327 | |
| 2328 /***************************************** | |
| 2329 * Parse auto declarations of the form: | |
| 2330 * storageClass ident = init, ident = init, ... ; | |
| 2331 * and return the array of them. | |
| 2332 * Starts with token on the first ident. | |
| 2333 * Ends with scanner past closing ';' | |
| 2334 */ | |
| 2335 | |
| 2336 #if DMDV2 | |
| 2337 Array *Parser::parseAutoDeclarations(unsigned storageClass, unsigned char *comment) | |
| 2338 { | |
| 2339 Array *a = new Array; | |
| 2340 | |
| 2341 while (1) | |
| 2342 { | |
| 2343 Identifier *ident = token.ident; | |
| 2344 nextToken(); // skip over ident | |
| 2345 assert(token.value == TOKassign); | |
| 2346 nextToken(); // skip over '=' | |
| 2347 Initializer *init = parseInitializer(); | |
| 2348 VarDeclaration *v = new VarDeclaration(loc, NULL, ident, init); | |
| 2349 v->storage_class = storageClass; | |
| 2350 a->push(v); | |
| 2351 if (token.value == TOKsemicolon) | |
| 2352 { | |
| 2353 nextToken(); | |
| 2354 addComment(v, comment); | |
| 2355 } | |
| 2356 else if (token.value == TOKcomma) | |
| 2357 { | |
| 2358 nextToken(); | |
| 2359 if (token.value == TOKidentifier && | |
| 2360 peek(&token)->value == TOKassign) | |
| 2361 { | |
| 2362 addComment(v, comment); | |
| 2363 continue; | |
| 2364 } | |
| 2365 else | |
| 2366 error("Identifier expected following comma"); | |
| 2367 } | |
| 2368 else | |
| 2369 error("semicolon expected following auto declaration, not '%s'", token.toChars()); | |
| 2370 break; | |
| 2371 } | |
| 2372 return a; | |
| 2373 } | |
| 2374 #endif | |
| 2375 | |
| 2376 /***************************************** | |
| 2377 * Parse contracts following function declaration. | |
| 2378 */ | |
| 2379 | |
| 2380 void Parser::parseContracts(FuncDeclaration *f) | |
| 2381 { | |
| 2382 Type *tb; | |
| 2383 enum LINK linksave = linkage; | |
| 2384 | |
| 2385 // The following is irrelevant, as it is overridden by sc->linkage in | |
| 2386 // TypeFunction::semantic | |
| 2387 linkage = LINKd; // nested functions have D linkage | |
| 2388 L1: | |
| 2389 switch (token.value) | |
| 2390 { | |
| 2391 case TOKlcurly: | |
| 2392 if (f->frequire || f->fensure) | |
| 2393 error("missing body { ... } after in or out"); | |
| 2394 f->fbody = parseStatement(PSsemi); | |
| 2395 f->endloc = endloc; | |
| 2396 break; | |
| 2397 | |
| 2398 case TOKbody: | |
| 2399 nextToken(); | |
| 2400 f->fbody = parseStatement(PScurly); | |
| 2401 f->endloc = endloc; | |
| 2402 break; | |
| 2403 | |
| 2404 case TOKsemicolon: | |
| 2405 if (f->frequire || f->fensure) | |
| 2406 error("missing body { ... } after in or out"); | |
| 2407 nextToken(); | |
| 2408 break; | |
| 2409 | |
| 2410 #if 0 // Do we want this for function declarations, so we can do: | |
| 2411 // int x, y, foo(), z; | |
| 2412 case TOKcomma: | |
| 2413 nextToken(); | |
| 2414 continue; | |
| 2415 #endif | |
| 2416 | |
| 2417 #if 0 // Dumped feature | |
| 2418 case TOKthrow: | |
| 2419 if (!f->fthrows) | |
| 2420 f->fthrows = new Array(); | |
| 2421 nextToken(); | |
| 2422 check(TOKlparen); | |
| 2423 while (1) | |
| 2424 { | |
| 2425 tb = parseBasicType(); | |
| 2426 f->fthrows->push(tb); | |
| 2427 if (token.value == TOKcomma) | |
| 2428 { nextToken(); | |
| 2429 continue; | |
| 2430 } | |
| 2431 break; | |
| 2432 } | |
| 2433 check(TOKrparen); | |
| 2434 goto L1; | |
| 2435 #endif | |
| 2436 | |
| 2437 case TOKin: | |
| 2438 nextToken(); | |
| 2439 if (f->frequire) | |
| 2440 error("redundant 'in' statement"); | |
| 2441 f->frequire = parseStatement(PScurly | PSscope); | |
| 2442 goto L1; | |
| 2443 | |
| 2444 case TOKout: | |
| 2445 // parse: out (identifier) { statement } | |
| 2446 nextToken(); | |
| 2447 if (token.value != TOKlcurly) | |
| 2448 { | |
| 2449 check(TOKlparen); | |
| 2450 if (token.value != TOKidentifier) | |
| 2451 error("(identifier) following 'out' expected, not %s", token.toChars()); | |
| 2452 f->outId = token.ident; | |
| 2453 nextToken(); | |
| 2454 check(TOKrparen); | |
| 2455 } | |
| 2456 if (f->fensure) | |
| 2457 error("redundant 'out' statement"); | |
| 2458 f->fensure = parseStatement(PScurly | PSscope); | |
| 2459 goto L1; | |
| 2460 | |
| 2461 default: | |
| 2462 error("semicolon expected following function declaration"); | |
| 2463 break; | |
| 2464 } | |
| 2465 linkage = linksave; | |
| 2466 } | |
| 2467 | |
| 2468 /***************************************** | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
2469 * Parse initializer for variable declaration. |
| 336 | 2470 */ |
| 2471 | |
| 2472 Initializer *Parser::parseInitializer() | |
| 2473 { | |
| 2474 StructInitializer *is; | |
| 2475 ArrayInitializer *ia; | |
| 2476 ExpInitializer *ie; | |
| 2477 Expression *e; | |
| 2478 Identifier *id; | |
| 2479 Initializer *value; | |
| 2480 int comma; | |
| 2481 Loc loc = this->loc; | |
| 2482 Token *t; | |
| 2483 int braces; | |
|
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2484 int brackets; |
| 336 | 2485 |
| 2486 switch (token.value) | |
| 2487 { | |
| 2488 case TOKlcurly: | |
| 2489 /* Scan ahead to see if it is a struct initializer or | |
| 2490 * a function literal. | |
| 2491 * If it contains a ';', it is a function literal. | |
| 2492 * Treat { } as a struct initializer. | |
| 2493 */ | |
| 2494 braces = 1; | |
| 2495 for (t = peek(&token); 1; t = peek(t)) | |
| 2496 { | |
| 2497 switch (t->value) | |
| 2498 { | |
| 2499 case TOKsemicolon: | |
| 2500 case TOKreturn: | |
| 2501 goto Lexpression; | |
| 2502 | |
| 2503 case TOKlcurly: | |
| 2504 braces++; | |
| 2505 continue; | |
| 2506 | |
| 2507 case TOKrcurly: | |
| 2508 if (--braces == 0) | |
| 2509 break; | |
| 2510 continue; | |
| 2511 | |
| 2512 case TOKeof: | |
| 2513 break; | |
| 2514 | |
| 2515 default: | |
| 2516 continue; | |
| 2517 } | |
| 2518 break; | |
| 2519 } | |
| 2520 | |
| 2521 is = new StructInitializer(loc); | |
| 2522 nextToken(); | |
| 2523 comma = 0; | |
| 2524 while (1) | |
| 2525 { | |
| 2526 switch (token.value) | |
| 2527 { | |
| 2528 case TOKidentifier: | |
| 2529 if (comma == 1) | |
| 2530 error("comma expected separating field initializers"); | |
| 2531 t = peek(&token); | |
| 2532 if (t->value == TOKcolon) | |
| 2533 { | |
| 2534 id = token.ident; | |
| 2535 nextToken(); | |
| 2536 nextToken(); // skip over ':' | |
| 2537 } | |
| 2538 else | |
| 2539 { id = NULL; | |
| 2540 } | |
| 2541 value = parseInitializer(); | |
| 2542 is->addInit(id, value); | |
| 2543 comma = 1; | |
| 2544 continue; | |
| 2545 | |
| 2546 case TOKcomma: | |
| 2547 nextToken(); | |
| 2548 comma = 2; | |
| 2549 continue; | |
| 2550 | |
| 2551 case TOKrcurly: // allow trailing comma's | |
| 2552 nextToken(); | |
| 2553 break; | |
| 2554 | |
| 2555 case TOKeof: | |
| 2556 error("found EOF instead of initializer"); | |
| 2557 break; | |
| 2558 | |
| 2559 default: | |
| 2560 value = parseInitializer(); | |
| 2561 is->addInit(NULL, value); | |
| 2562 comma = 1; | |
| 2563 continue; | |
| 2564 //error("found '%s' instead of field initializer", token.toChars()); | |
| 2565 //break; | |
| 2566 } | |
| 2567 break; | |
| 2568 } | |
| 2569 return is; | |
| 2570 | |
| 2571 case TOKlbracket: | |
|
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2572 /* 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
|
2573 * an expression. |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2574 * 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
|
2575 */ |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
changeset
|
2576 brackets = 1; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2577 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
|
2578 { |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2579 switch (t->value) |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2580 { |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2581 case TOKlbracket: |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2582 brackets++; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2583 continue; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2584 |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2585 case TOKrbracket: |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2586 if (--brackets == 0) |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2587 { t = peek(t); |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2588 if (t->value != TOKsemicolon && |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2589 t->value != TOKcomma && |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2590 t->value != TOKrcurly) |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2591 goto Lexpression; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2592 break; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2593 } |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2594 continue; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2595 |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2596 case TOKeof: |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2597 break; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2598 |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2599 default: |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2600 continue; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2601 } |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2602 break; |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2603 } |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2604 |
| 336 | 2605 ia = new ArrayInitializer(loc); |
| 2606 nextToken(); | |
| 2607 comma = 0; | |
| 2608 while (1) | |
| 2609 { | |
| 2610 switch (token.value) | |
| 2611 { | |
| 2612 default: | |
| 2613 if (comma == 1) | |
| 2614 { error("comma expected separating array initializers, not %s", token.toChars()); | |
| 2615 nextToken(); | |
| 2616 break; | |
| 2617 } | |
| 2618 e = parseAssignExp(); | |
| 2619 if (!e) | |
| 2620 break; | |
| 2621 if (token.value == TOKcolon) | |
| 2622 { | |
| 2623 nextToken(); | |
| 2624 value = parseInitializer(); | |
| 2625 } | |
| 2626 else | |
| 2627 { value = new ExpInitializer(e->loc, e); | |
| 2628 e = NULL; | |
| 2629 } | |
| 2630 ia->addInit(e, value); | |
| 2631 comma = 1; | |
| 2632 continue; | |
| 2633 | |
| 2634 case TOKlcurly: | |
| 2635 case TOKlbracket: | |
| 2636 if (comma == 1) | |
| 2637 error("comma expected separating array initializers, not %s", token.toChars()); | |
| 2638 value = parseInitializer(); | |
| 2639 ia->addInit(NULL, value); | |
| 2640 comma = 1; | |
| 2641 continue; | |
| 2642 | |
| 2643 case TOKcomma: | |
| 2644 nextToken(); | |
| 2645 comma = 2; | |
| 2646 continue; | |
| 2647 | |
| 2648 case TOKrbracket: // allow trailing comma's | |
| 2649 nextToken(); | |
| 2650 break; | |
| 2651 | |
| 2652 case TOKeof: | |
| 2653 error("found '%s' instead of array initializer", token.toChars()); | |
| 2654 break; | |
| 2655 } | |
| 2656 break; | |
| 2657 } | |
| 2658 return ia; | |
| 2659 | |
| 2660 case TOKvoid: | |
| 2661 t = peek(&token); | |
| 2662 if (t->value == TOKsemicolon || t->value == TOKcomma) | |
| 2663 { | |
| 2664 nextToken(); | |
| 2665 return new VoidInitializer(loc); | |
| 2666 } | |
| 2667 goto Lexpression; | |
| 2668 | |
| 2669 default: | |
| 2670 Lexpression: | |
| 2671 e = parseAssignExp(); | |
| 2672 ie = new ExpInitializer(loc, e); | |
| 2673 return ie; | |
| 2674 } | |
| 2675 } | |
| 2676 | |
| 2677 /***************************************** | |
| 2678 * Parses default argument initializer expression that is an assign expression, | |
| 2679 * with special handling for __FILE__ and __LINE__. | |
| 2680 */ | |
| 2681 | |
| 2682 #if DMDV2 | |
| 2683 Expression *Parser::parseDefaultInitExp() | |
| 2684 { | |
| 2685 if (token.value == TOKfile || | |
| 2686 token.value == TOKline) | |
| 2687 { | |
| 2688 Token *t = peek(&token); | |
| 2689 if (t->value == TOKcomma || t->value == TOKrparen) | |
| 2690 { Expression *e; | |
| 2691 | |
| 2692 if (token.value == TOKfile) | |
| 2693 e = new FileInitExp(loc); | |
| 2694 else | |
| 2695 e = new LineInitExp(loc); | |
| 2696 nextToken(); | |
| 2697 return e; | |
| 2698 } | |
| 2699 } | |
| 2700 | |
| 2701 Expression *e = parseAssignExp(); | |
| 2702 return e; | |
| 2703 } | |
| 2704 #endif | |
| 2705 | |
| 2706 /***************************************** | |
| 2707 * Input: | |
| 2708 * flags PSxxxx | |
| 2709 */ | |
| 2710 | |
| 2711 Statement *Parser::parseStatement(int flags) | |
| 2712 { Statement *s; | |
| 2713 Token *t; | |
| 2714 Condition *condition; | |
| 2715 Statement *ifbody; | |
| 2716 Statement *elsebody; | |
| 2717 Loc loc = this->loc; | |
| 2718 | |
| 2719 //printf("parseStatement()\n"); | |
| 2720 | |
| 2721 if (flags & PScurly && token.value != TOKlcurly) | |
| 2722 error("statement expected to be { }, not %s", token.toChars()); | |
| 2723 | |
| 2724 switch (token.value) | |
| 2725 { | |
| 2726 case TOKidentifier: | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
2727 /* A leading identifier can be a declaration, label, or expression. |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
2728 * The easiest case to check first is label: |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
2729 */ |
| 336 | 2730 t = peek(&token); |
| 2731 if (t->value == TOKcolon) | |
| 2732 { // It's a label | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
2733 |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
2734 Identifier *ident = token.ident; |
| 336 | 2735 nextToken(); |
| 2736 nextToken(); | |
| 2737 s = parseStatement(PSsemi); | |
| 2738 s = new LabelStatement(loc, ident, s); | |
| 2739 break; | |
| 2740 } | |
| 2741 // fallthrough to TOKdot | |
| 2742 case TOKdot: | |
| 2743 case TOKtypeof: | |
| 2744 if (isDeclaration(&token, 2, TOKreserved, NULL)) | |
| 2745 goto Ldeclaration; | |
| 2746 else | |
| 2747 goto Lexp; | |
| 2748 break; | |
| 2749 | |
| 2750 case TOKassert: | |
| 2751 case TOKthis: | |
| 2752 case TOKsuper: | |
| 2753 case TOKint32v: | |
| 2754 case TOKuns32v: | |
| 2755 case TOKint64v: | |
| 2756 case TOKuns64v: | |
| 2757 case TOKfloat32v: | |
| 2758 case TOKfloat64v: | |
| 2759 case TOKfloat80v: | |
| 2760 case TOKimaginary32v: | |
| 2761 case TOKimaginary64v: | |
| 2762 case TOKimaginary80v: | |
| 2763 case TOKcharv: | |
| 2764 case TOKwcharv: | |
| 2765 case TOKdcharv: | |
| 2766 case TOKnull: | |
| 2767 case TOKtrue: | |
| 2768 case TOKfalse: | |
| 2769 case TOKstring: | |
| 2770 case TOKlparen: | |
| 2771 case TOKcast: | |
| 2772 case TOKmul: | |
| 2773 case TOKmin: | |
| 2774 case TOKadd: | |
| 2775 case TOKplusplus: | |
| 2776 case TOKminusminus: | |
| 2777 case TOKnew: | |
| 2778 case TOKdelete: | |
| 2779 case TOKdelegate: | |
| 2780 case TOKfunction: | |
| 2781 case TOKtypeid: | |
| 2782 case TOKis: | |
| 2783 case TOKlbracket: | |
| 2784 #if DMDV2 | |
| 2785 case TOKtraits: | |
| 2786 case TOKfile: | |
| 2787 case TOKline: | |
| 2788 #endif | |
| 2789 Lexp: | |
| 2790 { Expression *exp; | |
| 2791 | |
| 2792 exp = parseExpression(); | |
| 2793 check(TOKsemicolon, "statement"); | |
| 2794 s = new ExpStatement(loc, exp); | |
| 2795 break; | |
| 2796 } | |
| 2797 | |
| 2798 case TOKstatic: | |
| 2799 { // Look ahead to see if it's static assert() or static if() | |
| 2800 Token *t; | |
| 2801 | |
| 2802 t = peek(&token); | |
| 2803 if (t->value == TOKassert) | |
| 2804 { | |
| 2805 nextToken(); | |
| 2806 s = new StaticAssertStatement(parseStaticAssert()); | |
| 2807 break; | |
| 2808 } | |
| 2809 if (t->value == TOKif) | |
| 2810 { | |
| 2811 nextToken(); | |
| 2812 condition = parseStaticIfCondition(); | |
| 2813 goto Lcondition; | |
| 2814 } | |
| 2815 goto Ldeclaration; | |
| 2816 } | |
| 2817 | |
| 2818 CASE_BASIC_TYPES: | |
| 2819 case TOKtypedef: | |
| 2820 case TOKalias: | |
| 2821 case TOKconst: | |
| 2822 case TOKauto: | |
| 2823 case TOKextern: | |
| 2824 case TOKfinal: | |
| 2825 case TOKinvariant: | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
2826 #if DMDV2 |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
2827 case TOKimmutable: |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
2828 case TOKshared: |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
2829 #endif |
| 336 | 2830 // case TOKtypeof: |
| 2831 Ldeclaration: | |
| 2832 { Array *a; | |
| 2833 | |
| 2834 a = parseDeclarations(); | |
| 2835 if (a->dim > 1) | |
| 2836 { | |
| 2837 Statements *as = new Statements(); | |
| 2838 as->reserve(a->dim); | |
| 2839 for (int i = 0; i < a->dim; i++) | |
| 2840 { | |
| 2841 Dsymbol *d = (Dsymbol *)a->data[i]; | |
| 2842 s = new DeclarationStatement(loc, d); | |
| 2843 as->push(s); | |
| 2844 } | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
2845 s = new CompoundDeclarationStatement(loc, as); |
| 336 | 2846 } |
| 2847 else if (a->dim == 1) | |
| 2848 { | |
| 2849 Dsymbol *d = (Dsymbol *)a->data[0]; | |
| 2850 s = new DeclarationStatement(loc, d); | |
| 2851 } | |
| 2852 else | |
| 2853 assert(0); | |
| 2854 if (flags & PSscope) | |
| 2855 s = new ScopeStatement(loc, s); | |
| 2856 break; | |
| 2857 } | |
| 2858 | |
| 2859 case TOKstruct: | |
| 2860 case TOKunion: | |
| 2861 case TOKclass: | |
| 2862 case TOKinterface: | |
| 2863 { Dsymbol *d; | |
| 2864 | |
| 2865 d = parseAggregate(); | |
| 2866 s = new DeclarationStatement(loc, d); | |
| 2867 break; | |
| 2868 } | |
| 2869 | |
| 2870 case TOKenum: | |
| 2871 { Dsymbol *d; | |
| 2872 | |
| 2873 d = parseEnum(); | |
| 2874 s = new DeclarationStatement(loc, d); | |
| 2875 break; | |
| 2876 } | |
| 2877 | |
| 2878 case TOKmixin: | |
| 2879 { t = peek(&token); | |
| 2880 if (t->value == TOKlparen) | |
| 2881 { // mixin(string) | |
| 2882 nextToken(); | |
| 2883 check(TOKlparen, "mixin"); | |
| 2884 Expression *e = parseAssignExp(); | |
| 2885 check(TOKrparen); | |
| 2886 check(TOKsemicolon); | |
| 2887 s = new CompileStatement(loc, e); | |
| 2888 break; | |
| 2889 } | |
| 2890 Dsymbol *d = parseMixin(); | |
| 2891 s = new DeclarationStatement(loc, d); | |
| 2892 break; | |
| 2893 } | |
| 2894 | |
| 2895 case TOKlcurly: | |
| 2896 { Statements *statements; | |
| 2897 | |
| 2898 nextToken(); | |
| 2899 statements = new Statements(); | |
| 2900 while (token.value != TOKrcurly) | |
| 2901 { | |
| 2902 statements->push(parseStatement(PSsemi | PScurlyscope)); | |
| 2903 } | |
| 2904 endloc = this->loc; | |
| 2905 s = new CompoundStatement(loc, statements); | |
| 2906 if (flags & (PSscope | PScurlyscope)) | |
| 2907 s = new ScopeStatement(loc, s); | |
| 2908 nextToken(); | |
| 2909 break; | |
| 2910 } | |
| 2911 | |
| 2912 case TOKwhile: | |
| 2913 { Expression *condition; | |
| 2914 Statement *body; | |
| 2915 | |
| 2916 nextToken(); | |
| 2917 check(TOKlparen); | |
| 2918 condition = parseExpression(); | |
| 2919 check(TOKrparen); | |
| 2920 body = parseStatement(PSscope); | |
| 2921 s = new WhileStatement(loc, condition, body); | |
| 2922 break; | |
| 2923 } | |
| 2924 | |
| 2925 case TOKsemicolon: | |
| 2926 if (!(flags & PSsemi)) | |
| 2927 error("use '{ }' for an empty statement, not a ';'"); | |
| 2928 nextToken(); | |
| 2929 s = new ExpStatement(loc, NULL); | |
| 2930 break; | |
| 2931 | |
| 2932 case TOKdo: | |
| 2933 { Statement *body; | |
| 2934 Expression *condition; | |
| 2935 | |
| 2936 nextToken(); | |
| 2937 body = parseStatement(PSscope); | |
| 2938 check(TOKwhile); | |
| 2939 check(TOKlparen); | |
| 2940 condition = parseExpression(); | |
| 2941 check(TOKrparen); | |
| 2942 s = new DoStatement(loc, body, condition); | |
| 2943 break; | |
| 2944 } | |
| 2945 | |
| 2946 case TOKfor: | |
| 2947 { | |
| 2948 Statement *init; | |
| 2949 Expression *condition; | |
| 2950 Expression *increment; | |
| 2951 Statement *body; | |
| 2952 | |
| 2953 nextToken(); | |
| 2954 check(TOKlparen); | |
| 2955 if (token.value == TOKsemicolon) | |
| 2956 { init = NULL; | |
| 2957 nextToken(); | |
| 2958 } | |
| 2959 else | |
| 2960 { init = parseStatement(0); | |
| 2961 } | |
| 2962 if (token.value == TOKsemicolon) | |
| 2963 { | |
| 2964 condition = NULL; | |
| 2965 nextToken(); | |
| 2966 } | |
| 2967 else | |
| 2968 { | |
| 2969 condition = parseExpression(); | |
| 2970 check(TOKsemicolon, "for condition"); | |
| 2971 } | |
| 2972 if (token.value == TOKrparen) | |
| 2973 { increment = NULL; | |
| 2974 nextToken(); | |
| 2975 } | |
| 2976 else | |
| 2977 { increment = parseExpression(); | |
| 2978 check(TOKrparen); | |
| 2979 } | |
| 2980 body = parseStatement(PSscope); | |
| 2981 s = new ForStatement(loc, init, condition, increment, body); | |
| 2982 if (init) | |
| 2983 s = new ScopeStatement(loc, s); | |
| 2984 break; | |
| 2985 } | |
| 2986 | |
| 2987 case TOKforeach: | |
| 2988 case TOKforeach_reverse: | |
| 2989 { | |
| 2990 enum TOK op = token.value; | |
| 2991 Arguments *arguments; | |
| 2992 | |
| 2993 Statement *d; | |
| 2994 Statement *body; | |
| 2995 Expression *aggr; | |
| 2996 | |
| 2997 nextToken(); | |
| 2998 check(TOKlparen); | |
| 2999 | |
| 3000 arguments = new Arguments(); | |
| 3001 | |
| 3002 while (1) | |
| 3003 { | |
| 3004 Type *tb; | |
| 3005 Identifier *ai = NULL; | |
| 3006 Type *at; | |
| 3007 unsigned storageClass; | |
| 3008 Argument *a; | |
| 3009 | |
| 3010 storageClass = STCin; | |
| 3011 if (token.value == TOKinout || token.value == TOKref) | |
| 3012 { storageClass = STCref; | |
| 3013 nextToken(); | |
| 3014 } | |
| 3015 if (token.value == TOKidentifier) | |
| 3016 { | |
| 3017 Token *t = peek(&token); | |
| 3018 if (t->value == TOKcomma || t->value == TOKsemicolon) | |
| 3019 { ai = token.ident; | |
| 3020 at = NULL; // infer argument type | |
| 3021 nextToken(); | |
| 3022 goto Larg; | |
| 3023 } | |
| 3024 } | |
| 3025 tb = parseBasicType(); | |
| 3026 at = parseDeclarator(tb, &ai); | |
| 3027 if (!ai) | |
| 3028 error("no identifier for declarator %s", at->toChars()); | |
| 3029 Larg: | |
| 3030 a = new Argument(storageClass, at, ai, NULL); | |
| 3031 arguments->push(a); | |
| 3032 if (token.value == TOKcomma) | |
| 3033 { nextToken(); | |
| 3034 continue; | |
| 3035 } | |
| 3036 break; | |
| 3037 } | |
| 3038 check(TOKsemicolon); | |
| 3039 | |
| 3040 aggr = parseExpression(); | |
| 3041 check(TOKrparen); | |
| 3042 body = parseStatement(0); | |
| 3043 s = new ForeachStatement(loc, op, arguments, aggr, body); | |
| 3044 break; | |
| 3045 } | |
| 3046 | |
| 3047 case TOKif: | |
| 3048 { Argument *arg = NULL; | |
| 3049 Expression *condition; | |
| 3050 Statement *ifbody; | |
| 3051 Statement *elsebody; | |
| 3052 | |
| 3053 nextToken(); | |
| 3054 check(TOKlparen); | |
| 3055 | |
| 3056 if (token.value == TOKauto) | |
| 3057 { | |
| 3058 nextToken(); | |
| 3059 if (token.value == TOKidentifier) | |
| 3060 { | |
| 3061 Token *t = peek(&token); | |
| 3062 if (t->value == TOKassign) | |
| 3063 { | |
| 3064 arg = new Argument(STCin, NULL, token.ident, NULL); | |
| 3065 nextToken(); | |
| 3066 nextToken(); | |
| 3067 } | |
| 3068 else | |
| 3069 { error("= expected following auto identifier"); | |
| 3070 goto Lerror; | |
| 3071 } | |
| 3072 } | |
| 3073 else | |
| 3074 { error("identifier expected following auto"); | |
| 3075 goto Lerror; | |
| 3076 } | |
| 3077 } | |
| 3078 else if (isDeclaration(&token, 2, TOKassign, NULL)) | |
| 3079 { | |
| 3080 Type *tb; | |
| 3081 Type *at; | |
| 3082 Identifier *ai; | |
| 3083 | |
| 3084 tb = parseBasicType(); | |
| 3085 at = parseDeclarator(tb, &ai); | |
| 3086 check(TOKassign); | |
| 3087 arg = new Argument(STCin, at, ai, NULL); | |
| 3088 } | |
| 3089 | |
| 3090 // Check for " ident;" | |
| 3091 else if (token.value == TOKidentifier) | |
| 3092 { | |
| 3093 Token *t = peek(&token); | |
| 3094 if (t->value == TOKcomma || t->value == TOKsemicolon) | |
| 3095 { | |
| 3096 arg = new Argument(STCin, NULL, token.ident, NULL); | |
| 3097 nextToken(); | |
| 3098 nextToken(); | |
| 3099 if (1 || !global.params.useDeprecated) | |
| 3100 error("if (v; e) is deprecated, use if (auto v = e)"); | |
| 3101 } | |
| 3102 } | |
| 3103 | |
| 3104 condition = parseExpression(); | |
| 3105 check(TOKrparen); | |
| 3106 ifbody = parseStatement(PSscope); | |
| 3107 if (token.value == TOKelse) | |
| 3108 { | |
| 3109 nextToken(); | |
| 3110 elsebody = parseStatement(PSscope); | |
| 3111 } | |
| 3112 else | |
| 3113 elsebody = NULL; | |
| 3114 s = new IfStatement(loc, arg, condition, ifbody, elsebody); | |
| 3115 break; | |
| 3116 } | |
| 3117 | |
| 3118 case TOKscope: | |
| 3119 if (peek(&token)->value != TOKlparen) | |
| 3120 goto Ldeclaration; // scope used as storage class | |
| 3121 nextToken(); | |
| 3122 check(TOKlparen); | |
| 3123 if (token.value != TOKidentifier) | |
| 3124 { error("scope identifier expected"); | |
| 3125 goto Lerror; | |
| 3126 } | |
| 3127 else | |
| 3128 { TOK t = TOKon_scope_exit; | |
| 3129 Identifier *id = token.ident; | |
| 3130 | |
| 3131 if (id == Id::exit) | |
| 3132 t = TOKon_scope_exit; | |
| 3133 else if (id == Id::failure) | |
| 3134 t = TOKon_scope_failure; | |
| 3135 else if (id == Id::success) | |
| 3136 t = TOKon_scope_success; | |
| 3137 else | |
| 3138 error("valid scope identifiers are exit, failure, or success, not %s", id->toChars()); | |
| 3139 nextToken(); | |
| 3140 check(TOKrparen); | |
| 3141 Statement *st = parseStatement(PScurlyscope); | |
| 3142 s = new OnScopeStatement(loc, t, st); | |
| 3143 break; | |
| 3144 } | |
| 3145 | |
| 3146 case TOKdebug: | |
| 3147 nextToken(); | |
| 3148 condition = parseDebugCondition(); | |
| 3149 goto Lcondition; | |
| 3150 | |
| 3151 case TOKversion: | |
| 3152 nextToken(); | |
| 3153 condition = parseVersionCondition(); | |
| 3154 goto Lcondition; | |
| 3155 | |
| 3156 Lcondition: | |
| 3157 ifbody = parseStatement(0 /*PSsemi*/); | |
| 3158 elsebody = NULL; | |
| 3159 if (token.value == TOKelse) | |
| 3160 { | |
| 3161 nextToken(); | |
| 3162 elsebody = parseStatement(0 /*PSsemi*/); | |
| 3163 } | |
| 3164 s = new ConditionalStatement(loc, condition, ifbody, elsebody); | |
| 3165 break; | |
| 3166 | |
| 3167 case TOKpragma: | |
| 3168 { Identifier *ident; | |
| 3169 Expressions *args = NULL; | |
| 3170 Statement *body; | |
| 3171 | |
| 3172 nextToken(); | |
| 3173 check(TOKlparen); | |
| 3174 if (token.value != TOKidentifier) | |
| 3175 { error("pragma(identifier expected"); | |
| 3176 goto Lerror; | |
| 3177 } | |
| 3178 ident = token.ident; | |
| 3179 nextToken(); | |
|
846
bc982f1ad106
Merged DMD 1.037 frontend
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
737
diff
changeset
|
3180 if (token.value == TOKcomma && peekNext() != TOKrparen) |
| 336 | 3181 args = parseArguments(); // pragma(identifier, args...); |
| 3182 else | |
| 3183 check(TOKrparen); // pragma(identifier); | |
| 3184 if (token.value == TOKsemicolon) | |
| 3185 { nextToken(); | |
| 3186 body = NULL; | |
| 3187 } | |
| 3188 else | |
| 3189 body = parseStatement(PSsemi); | |
| 3190 s = new PragmaStatement(loc, ident, args, body); | |
| 3191 break; | |
| 3192 } | |
| 3193 | |
| 3194 case TOKswitch: | |
| 3195 { Expression *condition; | |
| 3196 Statement *body; | |
| 3197 | |
| 3198 nextToken(); | |
| 3199 check(TOKlparen); | |
| 3200 condition = parseExpression(); | |
| 3201 check(TOKrparen); | |
| 3202 body = parseStatement(PSscope); | |
| 3203 s = new SwitchStatement(loc, condition, body); | |
| 3204 break; | |
| 3205 } | |
| 3206 | |
| 3207 case TOKcase: | |
| 3208 { Expression *exp; | |
| 3209 Statements *statements; | |
| 3210 Array cases; // array of Expression's | |
| 3211 | |
| 3212 while (1) | |
| 3213 { | |
| 3214 nextToken(); | |
| 3215 exp = parseAssignExp(); | |
| 3216 cases.push(exp); | |
| 3217 if (token.value != TOKcomma) | |
| 3218 break; | |
| 3219 } | |
| 3220 check(TOKcolon); | |
| 3221 | |
| 3222 statements = new Statements(); | |
| 3223 while (token.value != TOKcase && | |
| 3224 token.value != TOKdefault && | |
| 3225 token.value != TOKrcurly) | |
| 3226 { | |
| 3227 statements->push(parseStatement(PSsemi | PScurlyscope)); | |
| 3228 } | |
| 3229 s = new CompoundStatement(loc, statements); | |
| 3230 s = new ScopeStatement(loc, s); | |
| 3231 | |
| 3232 // Keep cases in order by building the case statements backwards | |
| 3233 for (int i = cases.dim; i; i--) | |
| 3234 { | |
| 3235 exp = (Expression *)cases.data[i - 1]; | |
| 3236 s = new CaseStatement(loc, exp, s); | |
| 3237 } | |
| 3238 break; | |
| 3239 } | |
| 3240 | |
| 3241 case TOKdefault: | |
| 3242 { | |
| 3243 Statements *statements; | |
| 3244 | |
| 3245 nextToken(); | |
| 3246 check(TOKcolon); | |
| 3247 | |
| 3248 statements = new Statements(); | |
| 3249 while (token.value != TOKcase && | |
| 3250 token.value != TOKdefault && | |
| 3251 token.value != TOKrcurly) | |
| 3252 { | |
| 3253 statements->push(parseStatement(PSsemi | PScurlyscope)); | |
| 3254 } | |
| 3255 s = new CompoundStatement(loc, statements); | |
| 3256 s = new ScopeStatement(loc, s); | |
| 3257 s = new DefaultStatement(loc, s); | |
| 3258 break; | |
| 3259 } | |
| 3260 | |
| 3261 case TOKreturn: | |
| 3262 { Expression *exp; | |
| 3263 | |
| 3264 nextToken(); | |
| 3265 if (token.value == TOKsemicolon) | |
| 3266 exp = NULL; | |
| 3267 else | |
| 3268 exp = parseExpression(); | |
| 3269 check(TOKsemicolon, "return statement"); | |
| 3270 s = new ReturnStatement(loc, exp); | |
| 3271 break; | |
| 3272 } | |
| 3273 | |
| 3274 case TOKbreak: | |
| 3275 { Identifier *ident; | |
| 3276 | |
| 3277 nextToken(); | |
| 3278 if (token.value == TOKidentifier) | |
| 3279 { ident = token.ident; | |
| 3280 nextToken(); | |
| 3281 } | |
| 3282 else | |
| 3283 ident = NULL; | |
| 3284 check(TOKsemicolon, "break statement"); | |
| 3285 s = new BreakStatement(loc, ident); | |
| 3286 break; | |
| 3287 } | |
| 3288 | |
| 3289 case TOKcontinue: | |
| 3290 { Identifier *ident; | |
| 3291 | |
| 3292 nextToken(); | |
| 3293 if (token.value == TOKidentifier) | |
| 3294 { ident = token.ident; | |
| 3295 nextToken(); | |
| 3296 } | |
| 3297 else | |
| 3298 ident = NULL; | |
| 3299 check(TOKsemicolon, "continue statement"); | |
| 3300 s = new ContinueStatement(loc, ident); | |
| 3301 break; | |
| 3302 } | |
| 3303 | |
| 3304 case TOKgoto: | |
| 3305 { Identifier *ident; | |
| 3306 | |
| 3307 nextToken(); | |
| 3308 if (token.value == TOKdefault) | |
| 3309 { | |
| 3310 nextToken(); | |
| 3311 s = new GotoDefaultStatement(loc); | |
| 3312 } | |
| 3313 else if (token.value == TOKcase) | |
| 3314 { | |
| 3315 Expression *exp = NULL; | |
| 3316 | |
| 3317 nextToken(); | |
| 3318 if (token.value != TOKsemicolon) | |
| 3319 exp = parseExpression(); | |
| 3320 s = new GotoCaseStatement(loc, exp); | |
| 3321 } | |
| 3322 else | |
| 3323 { | |
| 3324 if (token.value != TOKidentifier) | |
| 3325 { error("Identifier expected following goto"); | |
| 3326 ident = NULL; | |
| 3327 } | |
| 3328 else | |
| 3329 { ident = token.ident; | |
| 3330 nextToken(); | |
| 3331 } | |
| 3332 s = new GotoStatement(loc, ident); | |
| 3333 } | |
| 3334 check(TOKsemicolon, "goto statement"); | |
| 3335 break; | |
| 3336 } | |
| 3337 | |
| 3338 case TOKsynchronized: | |
| 3339 { Expression *exp; | |
| 3340 Statement *body; | |
| 3341 | |
| 3342 nextToken(); | |
| 3343 if (token.value == TOKlparen) | |
| 3344 { | |
| 3345 nextToken(); | |
| 3346 exp = parseExpression(); | |
| 3347 check(TOKrparen); | |
| 3348 } | |
| 3349 else | |
| 3350 exp = NULL; | |
| 3351 body = parseStatement(PSscope); | |
| 3352 s = new SynchronizedStatement(loc, exp, body); | |
| 3353 break; | |
| 3354 } | |
| 3355 | |
| 3356 case TOKwith: | |
| 3357 { Expression *exp; | |
| 3358 Statement *body; | |
| 3359 | |
| 3360 nextToken(); | |
| 3361 check(TOKlparen); | |
| 3362 exp = parseExpression(); | |
| 3363 check(TOKrparen); | |
| 3364 body = parseStatement(PSscope); | |
| 3365 s = new WithStatement(loc, exp, body); | |
| 3366 break; | |
| 3367 } | |
| 3368 | |
| 3369 case TOKtry: | |
| 3370 { Statement *body; | |
| 3371 Array *catches = NULL; | |
| 3372 Statement *finalbody = NULL; | |
| 3373 | |
| 3374 nextToken(); | |
| 3375 body = parseStatement(PSscope); | |
| 3376 while (token.value == TOKcatch) | |
| 3377 { | |
| 3378 Statement *handler; | |
| 3379 Catch *c; | |
| 3380 Type *t; | |
| 3381 Identifier *id; | |
| 3382 Loc loc = this->loc; | |
| 3383 | |
| 3384 nextToken(); | |
| 3385 if (token.value == TOKlcurly) | |
| 3386 { | |
| 3387 t = NULL; | |
| 3388 id = NULL; | |
| 3389 } | |
| 3390 else | |
| 3391 { | |
| 3392 check(TOKlparen); | |
| 3393 t = parseBasicType(); | |
| 3394 id = NULL; | |
| 3395 t = parseDeclarator(t, &id); | |
| 3396 check(TOKrparen); | |
| 3397 } | |
| 3398 handler = parseStatement(0); | |
| 3399 c = new Catch(loc, t, id, handler); | |
| 3400 if (!catches) | |
| 3401 catches = new Array(); | |
| 3402 catches->push(c); | |
| 3403 } | |
| 3404 | |
| 3405 if (token.value == TOKfinally) | |
| 3406 { nextToken(); | |
| 3407 finalbody = parseStatement(0); | |
| 3408 } | |
| 3409 | |
| 3410 s = body; | |
| 3411 if (!catches && !finalbody) | |
| 3412 error("catch or finally expected following try"); | |
| 3413 else | |
| 3414 { if (catches) | |
| 3415 s = new TryCatchStatement(loc, body, catches); | |
| 3416 if (finalbody) | |
| 3417 s = new TryFinallyStatement(loc, s, finalbody); | |
| 3418 } | |
| 3419 break; | |
| 3420 } | |
| 3421 | |
| 3422 case TOKthrow: | |
| 3423 { Expression *exp; | |
| 3424 | |
| 3425 nextToken(); | |
| 3426 exp = parseExpression(); | |
| 3427 check(TOKsemicolon, "throw statement"); | |
| 3428 s = new ThrowStatement(loc, exp); | |
| 3429 break; | |
| 3430 } | |
| 3431 | |
| 3432 case TOKvolatile: | |
| 3433 nextToken(); | |
| 3434 s = parseStatement(PSsemi | PScurlyscope); | |
| 3435 #if DMDV2 | |
| 3436 if (!global.params.useDeprecated) | |
| 3437 error("volatile statements deprecated; used synchronized statements instead"); | |
| 3438 #endif | |
| 3439 s = new VolatileStatement(loc, s); | |
| 3440 break; | |
| 3441 | |
| 3442 case TOKasm: | |
| 3443 { Statements *statements; | |
| 3444 Identifier *label; | |
| 3445 Loc labelloc; | |
| 3446 Token *toklist; | |
| 3447 Token **ptoklist; | |
| 3448 | |
| 3449 // Parse the asm block into a sequence of AsmStatements, | |
| 3450 // each AsmStatement is one instruction. | |
| 3451 // Separate out labels. | |
| 3452 // Defer parsing of AsmStatements until semantic processing. | |
| 3453 | |
| 3454 nextToken(); | |
| 3455 check(TOKlcurly); | |
| 3456 toklist = NULL; | |
| 3457 ptoklist = &toklist; | |
| 3458 label = NULL; | |
| 3459 statements = new Statements(); | |
| 3460 while (1) | |
| 3461 { | |
| 3462 switch (token.value) | |
| 3463 { | |
| 3464 case TOKidentifier: | |
| 3465 if (!toklist) | |
| 3466 { | |
| 3467 // Look ahead to see if it is a label | |
| 3468 t = peek(&token); | |
| 3469 if (t->value == TOKcolon) | |
| 3470 { // It's a label | |
| 3471 label = token.ident; | |
| 3472 labelloc = this->loc; | |
| 3473 nextToken(); | |
| 3474 nextToken(); | |
| 3475 continue; | |
| 3476 } | |
| 3477 } | |
| 3478 goto Ldefault; | |
| 3479 | |
| 3480 case TOKrcurly: | |
| 3481 if (toklist || label) | |
| 3482 { | |
| 3483 error("asm statements must end in ';'"); | |
| 3484 } | |
| 3485 break; | |
| 3486 | |
| 3487 case TOKsemicolon: | |
| 3488 s = NULL; | |
| 3489 if (toklist || label) | |
| 3490 { // Create AsmStatement from list of tokens we've saved | |
| 3491 s = new AsmStatement(this->loc, toklist); | |
| 3492 toklist = NULL; | |
| 3493 ptoklist = &toklist; | |
| 3494 if (label) | |
| 3495 { s = new LabelStatement(labelloc, label, s); | |
| 3496 label = NULL; | |
| 3497 } | |
| 3498 statements->push(s); | |
| 3499 } | |
| 3500 nextToken(); | |
| 3501 continue; | |
| 3502 | |
| 3503 case TOKeof: | |
| 3504 /* { */ | |
| 3505 error("matching '}' expected, not end of file"); | |
| 3506 break; | |
| 3507 | |
| 3508 default: | |
| 3509 Ldefault: | |
| 3510 *ptoklist = new Token(); | |
| 3511 memcpy(*ptoklist, &token, sizeof(Token)); | |
| 3512 ptoklist = &(*ptoklist)->next; | |
| 3513 *ptoklist = NULL; | |
| 3514 | |
| 3515 nextToken(); | |
| 3516 continue; | |
| 3517 } | |
| 3518 break; | |
| 3519 } | |
| 3520 s = new AsmBlockStatement(loc, statements); | |
| 3521 nextToken(); | |
| 3522 break; | |
| 3523 } | |
| 3524 | |
| 3525 default: | |
| 3526 error("found '%s' instead of statement", token.toChars()); | |
| 3527 goto Lerror; | |
| 3528 | |
| 3529 Lerror: | |
| 3530 while (token.value != TOKrcurly && | |
| 3531 token.value != TOKsemicolon && | |
| 3532 token.value != TOKeof) | |
| 3533 nextToken(); | |
| 3534 if (token.value == TOKsemicolon) | |
| 3535 nextToken(); | |
| 3536 s = NULL; | |
| 3537 break; | |
| 3538 } | |
| 3539 | |
| 3540 return s; | |
| 3541 } | |
| 3542 | |
| 3543 void Parser::check(enum TOK value) | |
| 3544 { | |
| 3545 check(loc, value); | |
| 3546 } | |
| 3547 | |
| 3548 void Parser::check(Loc loc, enum TOK value) | |
| 3549 { | |
| 3550 if (token.value != value) | |
| 3551 error(loc, "found '%s' when expecting '%s'", token.toChars(), Token::toChars(value)); | |
| 3552 nextToken(); | |
| 3553 } | |
| 3554 | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3555 void Parser::check(enum TOK value, const char *string) |
| 336 | 3556 { |
| 3557 if (token.value != value) | |
| 3558 error("found '%s' when expecting '%s' following '%s'", | |
| 3559 token.toChars(), Token::toChars(value), string); | |
| 3560 nextToken(); | |
| 3561 } | |
| 3562 | |
| 3563 /************************************ | |
| 3564 * Determine if the scanner is sitting on the start of a declaration. | |
| 3565 * Input: | |
| 3566 * needId 0 no identifier | |
| 3567 * 1 identifier optional | |
| 3568 * 2 must have identifier | |
| 3569 */ | |
| 3570 | |
| 3571 int Parser::isDeclaration(Token *t, int needId, enum TOK endtok, Token **pt) | |
| 3572 { | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3573 //printf("isDeclaration(needId = %d)\n", needId); |
| 336 | 3574 int haveId = 0; |
| 3575 | |
| 3576 #if DMDV2 | |
| 3577 if ((t->value == TOKconst || t->value == TOKinvariant) && | |
| 3578 peek(t)->value != TOKlparen) | |
| 3579 { /* const type | |
| 3580 * invariant type | |
| 3581 */ | |
| 3582 t = peek(t); | |
| 3583 } | |
| 3584 #endif | |
| 3585 | |
| 3586 if (!isBasicType(&t)) | |
| 3587 return FALSE; | |
| 3588 if (!isDeclarator(&t, &haveId, endtok)) | |
| 3589 return FALSE; | |
| 3590 if ( needId == 1 || | |
| 3591 (needId == 0 && !haveId) || | |
| 3592 (needId == 2 && haveId)) | |
| 3593 { if (pt) | |
| 3594 *pt = t; | |
| 3595 return TRUE; | |
| 3596 } | |
| 3597 else | |
| 3598 return FALSE; | |
| 3599 } | |
| 3600 | |
| 3601 int Parser::isBasicType(Token **pt) | |
| 3602 { | |
| 3603 // This code parallels parseBasicType() | |
| 3604 Token *t = *pt; | |
| 3605 Token *t2; | |
| 3606 int parens; | |
| 3607 | |
| 3608 switch (t->value) | |
| 3609 { | |
| 3610 CASE_BASIC_TYPES: | |
| 3611 t = peek(t); | |
| 3612 break; | |
| 3613 | |
| 3614 case TOKidentifier: | |
| 3615 t = peek(t); | |
| 3616 if (t->value == TOKnot) | |
| 3617 { | |
| 3618 goto L4; | |
| 3619 } | |
| 3620 goto L3; | |
| 3621 while (1) | |
| 3622 { | |
| 3623 L2: | |
| 3624 t = peek(t); | |
| 3625 L3: | |
| 3626 if (t->value == TOKdot) | |
| 3627 { | |
| 3628 Ldot: | |
| 3629 t = peek(t); | |
| 3630 if (t->value != TOKidentifier) | |
| 3631 goto Lfalse; | |
| 3632 t = peek(t); | |
| 3633 if (t->value != TOKnot) | |
| 3634 goto L3; | |
| 3635 L4: | |
| 3636 t = peek(t); | |
| 3637 if (t->value != TOKlparen) | |
| 3638 goto Lfalse; | |
| 3639 if (!skipParens(t, &t)) | |
| 3640 goto Lfalse; | |
| 3641 } | |
| 3642 else | |
| 3643 break; | |
| 3644 } | |
| 3645 break; | |
| 3646 | |
| 3647 case TOKdot: | |
| 3648 goto Ldot; | |
| 3649 | |
| 3650 case TOKtypeof: | |
| 3651 /* typeof(exp).identifier... | |
| 3652 */ | |
| 3653 t = peek(t); | |
| 3654 if (t->value != TOKlparen) | |
| 3655 goto Lfalse; | |
| 3656 if (!skipParens(t, &t)) | |
| 3657 goto Lfalse; | |
| 3658 goto L2; | |
| 3659 | |
| 3660 default: | |
| 3661 goto Lfalse; | |
| 3662 } | |
| 3663 *pt = t; | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3664 //printf("is\n"); |
| 336 | 3665 return TRUE; |
| 3666 | |
| 3667 Lfalse: | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3668 //printf("is not\n"); |
| 336 | 3669 return FALSE; |
| 3670 } | |
| 3671 | |
| 3672 int Parser::isDeclarator(Token **pt, int *haveId, enum TOK endtok) | |
| 3673 { // This code parallels parseDeclarator() | |
| 3674 Token *t = *pt; | |
| 3675 int parens; | |
| 3676 | |
| 3677 //printf("Parser::isDeclarator()\n"); | |
| 3678 //t->print(); | |
| 3679 if (t->value == TOKassign) | |
| 3680 return FALSE; | |
| 3681 | |
| 3682 while (1) | |
| 3683 { | |
| 3684 parens = FALSE; | |
| 3685 switch (t->value) | |
| 3686 { | |
| 3687 case TOKmul: | |
|
717
a26b0c5d5942
Merged DMD 1.036.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
710
diff
changeset
|
3688 //case TOKand: |
| 336 | 3689 t = peek(t); |
| 3690 continue; | |
| 3691 | |
| 3692 case TOKlbracket: | |
| 3693 t = peek(t); | |
| 3694 if (t->value == TOKrbracket) | |
| 3695 { | |
| 3696 t = peek(t); | |
| 3697 } | |
| 3698 else if (isDeclaration(t, 0, TOKrbracket, &t)) | |
| 3699 { // It's an associative array declaration | |
| 3700 t = peek(t); | |
| 3701 } | |
| 3702 else | |
| 3703 { | |
| 3704 // [ expression ] | |
| 3705 // [ expression .. expression ] | |
| 3706 if (!isExpression(&t)) | |
| 3707 return FALSE; | |
| 3708 if (t->value == TOKslice) | |
| 3709 { t = peek(t); | |
| 3710 if (!isExpression(&t)) | |
| 3711 return FALSE; | |
| 3712 } | |
| 3713 if (t->value != TOKrbracket) | |
| 3714 return FALSE; | |
| 3715 t = peek(t); | |
| 3716 } | |
| 3717 continue; | |
| 3718 | |
| 3719 case TOKidentifier: | |
| 3720 if (*haveId) | |
| 3721 return FALSE; | |
| 3722 *haveId = TRUE; | |
| 3723 t = peek(t); | |
| 3724 break; | |
| 3725 | |
| 3726 case TOKlparen: | |
| 3727 t = peek(t); | |
| 3728 | |
| 3729 if (t->value == TOKrparen) | |
| 3730 return FALSE; // () is not a declarator | |
| 3731 | |
| 3732 /* Regard ( identifier ) as not a declarator | |
| 3733 * BUG: what about ( *identifier ) in | |
| 3734 * f(*p)(x); | |
| 3735 * where f is a class instance with overloaded () ? | |
| 3736 * Should we just disallow C-style function pointer declarations? | |
| 3737 */ | |
| 3738 if (t->value == TOKidentifier) | |
| 3739 { Token *t2 = peek(t); | |
| 3740 if (t2->value == TOKrparen) | |
| 3741 return FALSE; | |
| 3742 } | |
| 3743 | |
| 3744 | |
| 3745 if (!isDeclarator(&t, haveId, TOKrparen)) | |
| 3746 return FALSE; | |
| 3747 t = peek(t); | |
| 3748 parens = TRUE; | |
| 3749 break; | |
| 3750 | |
| 3751 case TOKdelegate: | |
| 3752 case TOKfunction: | |
| 3753 t = peek(t); | |
| 3754 if (!isParameters(&t)) | |
| 3755 return FALSE; | |
| 3756 continue; | |
| 3757 } | |
| 3758 break; | |
| 3759 } | |
| 3760 | |
| 3761 while (1) | |
| 3762 { | |
| 3763 switch (t->value) | |
| 3764 { | |
| 3765 #if CARRAYDECL | |
| 3766 case TOKlbracket: | |
| 3767 parens = FALSE; | |
| 3768 t = peek(t); | |
| 3769 if (t->value == TOKrbracket) | |
| 3770 { | |
| 3771 t = peek(t); | |
| 3772 } | |
| 3773 else if (isDeclaration(t, 0, TOKrbracket, &t)) | |
| 3774 { // It's an associative array declaration | |
| 3775 t = peek(t); | |
| 3776 } | |
| 3777 else | |
| 3778 { | |
| 3779 // [ expression ] | |
| 3780 if (!isExpression(&t)) | |
| 3781 return FALSE; | |
| 3782 if (t->value != TOKrbracket) | |
| 3783 return FALSE; | |
| 3784 t = peek(t); | |
| 3785 } | |
| 3786 continue; | |
| 3787 #endif | |
| 3788 | |
| 3789 case TOKlparen: | |
| 3790 parens = FALSE; | |
| 3791 if (!isParameters(&t)) | |
| 3792 return FALSE; | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3793 #if DMDV2 |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3794 while (1) |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3795 { |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3796 switch (t->value) |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3797 { |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3798 case TOKconst: |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3799 case TOKinvariant: |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3800 case TOKimmutable: |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3801 case TOKshared: |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3802 case TOKpure: |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3803 case TOKnothrow: |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3804 t = peek(t); |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3805 continue; |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3806 default: |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3807 break; |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3808 } |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3809 break; |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3810 } |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
3811 #endif |
| 336 | 3812 continue; |
| 3813 | |
| 3814 // Valid tokens that follow a declaration | |
| 3815 case TOKrparen: | |
| 3816 case TOKrbracket: | |
| 3817 case TOKassign: | |
| 3818 case TOKcomma: | |
| 3819 case TOKsemicolon: | |
| 3820 case TOKlcurly: | |
| 3821 case TOKin: | |
| 3822 // The !parens is to disallow unnecessary parentheses | |
| 3823 if (!parens && (endtok == TOKreserved || endtok == t->value)) | |
| 3824 { *pt = t; | |
| 3825 return TRUE; | |
| 3826 } | |
| 3827 return FALSE; | |
| 3828 | |
| 3829 default: | |
| 3830 return FALSE; | |
| 3831 } | |
| 3832 } | |
| 3833 } | |
| 3834 | |
| 3835 | |
| 3836 int Parser::isParameters(Token **pt) | |
| 3837 { // This code parallels parseParameters() | |
| 3838 Token *t = *pt; | |
| 3839 int tmp; | |
| 3840 | |
| 3841 //printf("isParameters()\n"); | |
| 3842 if (t->value != TOKlparen) | |
| 3843 return FALSE; | |
| 3844 | |
| 3845 t = peek(t); | |
| 3846 while (1) | |
| 3847 { | |
| 3848 switch (t->value) | |
| 3849 { | |
| 3850 case TOKrparen: | |
| 3851 break; | |
| 3852 | |
| 3853 case TOKdotdotdot: | |
| 3854 t = peek(t); | |
| 3855 break; | |
| 3856 | |
| 3857 case TOKin: | |
| 3858 case TOKout: | |
| 3859 case TOKinout: | |
| 3860 case TOKref: | |
| 3861 case TOKlazy: | |
| 3862 t = peek(t); | |
| 3863 default: | |
| 3864 if (!isBasicType(&t)) | |
| 3865 return FALSE; | |
| 3866 tmp = FALSE; | |
| 3867 if (t->value != TOKdotdotdot && | |
| 3868 !isDeclarator(&t, &tmp, TOKreserved)) | |
| 3869 return FALSE; | |
| 3870 if (t->value == TOKassign) | |
| 3871 { t = peek(t); | |
| 3872 if (!isExpression(&t)) | |
| 3873 return FALSE; | |
| 3874 } | |
| 3875 if (t->value == TOKdotdotdot) | |
| 3876 { | |
| 3877 t = peek(t); | |
| 3878 break; | |
| 3879 } | |
| 3880 if (t->value == TOKcomma) | |
| 3881 { t = peek(t); | |
| 3882 continue; | |
| 3883 } | |
| 3884 break; | |
| 3885 } | |
| 3886 break; | |
| 3887 } | |
| 3888 if (t->value != TOKrparen) | |
| 3889 return FALSE; | |
| 3890 t = peek(t); | |
| 3891 *pt = t; | |
| 3892 return TRUE; | |
| 3893 } | |
| 3894 | |
| 3895 int Parser::isExpression(Token **pt) | |
| 3896 { | |
| 3897 // This is supposed to determine if something is an expression. | |
| 3898 // What it actually does is scan until a closing right bracket | |
| 3899 // is found. | |
| 3900 | |
| 3901 Token *t = *pt; | |
| 3902 int brnest = 0; | |
| 3903 int panest = 0; | |
| 3904 | |
| 3905 for (;; t = peek(t)) | |
| 3906 { | |
| 3907 switch (t->value) | |
| 3908 { | |
| 3909 case TOKlbracket: | |
| 3910 brnest++; | |
| 3911 continue; | |
| 3912 | |
| 3913 case TOKrbracket: | |
| 3914 if (--brnest >= 0) | |
| 3915 continue; | |
| 3916 break; | |
| 3917 | |
| 3918 case TOKlparen: | |
| 3919 panest++; | |
| 3920 continue; | |
| 3921 | |
| 3922 case TOKcomma: | |
| 3923 if (brnest || panest) | |
| 3924 continue; | |
| 3925 break; | |
| 3926 | |
| 3927 case TOKrparen: | |
| 3928 if (--panest >= 0) | |
| 3929 continue; | |
| 3930 break; | |
| 3931 | |
| 3932 case TOKslice: | |
| 3933 if (brnest) | |
| 3934 continue; | |
| 3935 break; | |
| 3936 | |
| 3937 case TOKeof: | |
| 3938 return FALSE; | |
| 3939 | |
| 3940 default: | |
| 3941 continue; | |
| 3942 } | |
| 3943 break; | |
| 3944 } | |
| 3945 | |
| 3946 *pt = t; | |
| 3947 return TRUE; | |
| 3948 } | |
| 3949 | |
| 3950 /********************************************** | |
| 3951 * Skip over | |
| 3952 * instance foo.bar(parameters...) | |
| 3953 * Output: | |
| 3954 * if (pt), *pt is set to the token following the closing ) | |
| 3955 * Returns: | |
| 3956 * 1 it's valid instance syntax | |
| 3957 * 0 invalid instance syntax | |
| 3958 */ | |
| 3959 | |
| 3960 int Parser::isTemplateInstance(Token *t, Token **pt) | |
| 3961 { | |
| 3962 t = peek(t); | |
| 3963 if (t->value != TOKdot) | |
| 3964 { | |
| 3965 if (t->value != TOKidentifier) | |
| 3966 goto Lfalse; | |
| 3967 t = peek(t); | |
| 3968 } | |
| 3969 while (t->value == TOKdot) | |
| 3970 { | |
| 3971 t = peek(t); | |
| 3972 if (t->value != TOKidentifier) | |
| 3973 goto Lfalse; | |
| 3974 t = peek(t); | |
| 3975 } | |
| 3976 if (t->value != TOKlparen) | |
| 3977 goto Lfalse; | |
| 3978 | |
| 3979 // Skip over the template arguments | |
| 3980 while (1) | |
| 3981 { | |
| 3982 while (1) | |
| 3983 { | |
| 3984 t = peek(t); | |
| 3985 switch (t->value) | |
| 3986 { | |
| 3987 case TOKlparen: | |
| 3988 if (!skipParens(t, &t)) | |
| 3989 goto Lfalse; | |
| 3990 continue; | |
| 3991 case TOKrparen: | |
| 3992 break; | |
| 3993 case TOKcomma: | |
| 3994 break; | |
| 3995 case TOKeof: | |
| 3996 case TOKsemicolon: | |
| 3997 goto Lfalse; | |
| 3998 default: | |
| 3999 continue; | |
| 4000 } | |
| 4001 break; | |
| 4002 } | |
| 4003 | |
| 4004 if (t->value != TOKcomma) | |
| 4005 break; | |
| 4006 } | |
| 4007 if (t->value != TOKrparen) | |
| 4008 goto Lfalse; | |
| 4009 t = peek(t); | |
| 4010 if (pt) | |
| 4011 *pt = t; | |
| 4012 return 1; | |
| 4013 | |
| 4014 Lfalse: | |
| 4015 return 0; | |
| 4016 } | |
| 4017 | |
| 4018 /******************************************* | |
| 4019 * Skip parens, brackets. | |
| 4020 * Input: | |
| 4021 * t is on opening ( | |
| 4022 * Output: | |
| 4023 * *pt is set to closing token, which is ')' on success | |
| 4024 * Returns: | |
| 4025 * !=0 successful | |
| 4026 * 0 some parsing error | |
| 4027 */ | |
| 4028 | |
| 4029 int Parser::skipParens(Token *t, Token **pt) | |
| 4030 { | |
| 4031 int parens = 0; | |
| 4032 | |
| 4033 while (1) | |
| 4034 { | |
| 4035 switch (t->value) | |
| 4036 { | |
| 4037 case TOKlparen: | |
| 4038 parens++; | |
| 4039 break; | |
| 4040 | |
| 4041 case TOKrparen: | |
| 4042 parens--; | |
| 4043 if (parens < 0) | |
| 4044 goto Lfalse; | |
| 4045 if (parens == 0) | |
| 4046 goto Ldone; | |
| 4047 break; | |
| 4048 | |
| 4049 case TOKeof: | |
| 4050 case TOKsemicolon: | |
| 4051 goto Lfalse; | |
| 4052 | |
| 4053 default: | |
| 4054 break; | |
| 4055 } | |
| 4056 t = peek(t); | |
| 4057 } | |
| 4058 | |
| 4059 Ldone: | |
| 4060 if (*pt) | |
| 4061 *pt = t; | |
| 4062 return 1; | |
| 4063 | |
| 4064 Lfalse: | |
| 4065 return 0; | |
| 4066 } | |
| 4067 | |
| 4068 /********************************* Expression Parser ***************************/ | |
| 4069 | |
| 4070 Expression *Parser::parsePrimaryExp() | |
| 4071 { Expression *e; | |
| 4072 Type *t; | |
| 4073 Identifier *id; | |
| 4074 enum TOK save; | |
| 4075 Loc loc = this->loc; | |
| 4076 | |
| 4077 //printf("parsePrimaryExp(): loc = %d\n", loc.linnum); | |
| 4078 switch (token.value) | |
| 4079 { | |
| 4080 case TOKidentifier: | |
| 4081 id = token.ident; | |
| 4082 nextToken(); | |
| 4083 if (token.value == TOKnot && peek(&token)->value == TOKlparen) | |
| 4084 { // identifier!(template-argument-list) | |
| 4085 TemplateInstance *tempinst; | |
| 4086 | |
| 4087 tempinst = new TemplateInstance(loc, id); | |
| 4088 nextToken(); | |
| 4089 tempinst->tiargs = parseTemplateArgumentList(); | |
| 4090 e = new ScopeExp(loc, tempinst); | |
| 4091 } | |
| 4092 else | |
| 4093 e = new IdentifierExp(loc, id); | |
| 4094 break; | |
| 4095 | |
| 4096 case TOKdollar: | |
| 4097 if (!inBrackets) | |
| 4098 error("'$' is valid only inside [] of index or slice"); | |
| 4099 e = new DollarExp(loc); | |
| 4100 nextToken(); | |
| 4101 break; | |
| 4102 | |
| 4103 case TOKdot: | |
| 4104 // Signal global scope '.' operator with "" identifier | |
| 4105 e = new IdentifierExp(loc, Id::empty); | |
| 4106 break; | |
| 4107 | |
| 4108 case TOKthis: | |
| 4109 e = new ThisExp(loc); | |
| 4110 nextToken(); | |
| 4111 break; | |
| 4112 | |
| 4113 case TOKsuper: | |
| 4114 e = new SuperExp(loc); | |
| 4115 nextToken(); | |
| 4116 break; | |
| 4117 | |
| 4118 case TOKint32v: | |
|
1165
226c07c71967
This should fix integers below 64 bit on big-endian systems.
Frits van Bommel <fvbommel wxs.nl>
parents:
1103
diff
changeset
|
4119 e = new IntegerExp(loc, (d_int32)token.int64value, Type::tint32); |
| 336 | 4120 nextToken(); |
| 4121 break; | |
| 4122 | |
| 4123 case TOKuns32v: | |
|
1165
226c07c71967
This should fix integers below 64 bit on big-endian systems.
Frits van Bommel <fvbommel wxs.nl>
parents:
1103
diff
changeset
|
4124 e = new IntegerExp(loc, (d_uns32)token.uns64value, Type::tuns32); |
| 336 | 4125 nextToken(); |
| 4126 break; | |
| 4127 | |
| 4128 case TOKint64v: | |
| 4129 e = new IntegerExp(loc, token.int64value, Type::tint64); | |
| 4130 nextToken(); | |
| 4131 break; | |
| 4132 | |
| 4133 case TOKuns64v: | |
| 4134 e = new IntegerExp(loc, token.uns64value, Type::tuns64); | |
| 4135 nextToken(); | |
| 4136 break; | |
| 4137 | |
| 4138 case TOKfloat32v: | |
| 4139 e = new RealExp(loc, token.float80value, Type::tfloat32); | |
| 4140 nextToken(); | |
| 4141 break; | |
| 4142 | |
| 4143 case TOKfloat64v: | |
| 4144 e = new RealExp(loc, token.float80value, Type::tfloat64); | |
| 4145 nextToken(); | |
| 4146 break; | |
| 4147 | |
| 4148 case TOKfloat80v: | |
| 4149 e = new RealExp(loc, token.float80value, Type::tfloat80); | |
| 4150 nextToken(); | |
| 4151 break; | |
| 4152 | |
| 4153 case TOKimaginary32v: | |
| 4154 e = new RealExp(loc, token.float80value, Type::timaginary32); | |
| 4155 nextToken(); | |
| 4156 break; | |
| 4157 | |
| 4158 case TOKimaginary64v: | |
| 4159 e = new RealExp(loc, token.float80value, Type::timaginary64); | |
| 4160 nextToken(); | |
| 4161 break; | |
| 4162 | |
| 4163 case TOKimaginary80v: | |
| 4164 e = new RealExp(loc, token.float80value, Type::timaginary80); | |
| 4165 nextToken(); | |
| 4166 break; | |
| 4167 | |
| 4168 case TOKnull: | |
| 4169 e = new NullExp(loc); | |
| 4170 nextToken(); | |
| 4171 break; | |
| 4172 | |
| 4173 #if DMDV2 | |
| 4174 case TOKfile: | |
| 4175 { char *s = loc.filename ? loc.filename : mod->ident->toChars(); | |
| 4176 e = new StringExp(loc, s, strlen(s), 0); | |
| 4177 nextToken(); | |
| 4178 break; | |
| 4179 } | |
| 4180 | |
| 4181 case TOKline: | |
| 4182 e = new IntegerExp(loc, loc.linnum, Type::tint32); | |
| 4183 nextToken(); | |
| 4184 break; | |
| 4185 #endif | |
| 4186 | |
| 4187 case TOKtrue: | |
| 4188 e = new IntegerExp(loc, 1, Type::tbool); | |
| 4189 nextToken(); | |
| 4190 break; | |
| 4191 | |
| 4192 case TOKfalse: | |
| 4193 e = new IntegerExp(loc, 0, Type::tbool); | |
| 4194 nextToken(); | |
| 4195 break; | |
| 4196 | |
| 4197 case TOKcharv: | |
|
1165
226c07c71967
This should fix integers below 64 bit on big-endian systems.
Frits van Bommel <fvbommel wxs.nl>
parents:
1103
diff
changeset
|
4198 e = new IntegerExp(loc, (d_uns8)token.uns64value, Type::tchar); |
| 336 | 4199 nextToken(); |
| 4200 break; | |
| 4201 | |
| 4202 case TOKwcharv: | |
|
1165
226c07c71967
This should fix integers below 64 bit on big-endian systems.
Frits van Bommel <fvbommel wxs.nl>
parents:
1103
diff
changeset
|
4203 e = new IntegerExp(loc, (d_uns16)token.uns64value, Type::twchar); |
| 336 | 4204 nextToken(); |
| 4205 break; | |
| 4206 | |
| 4207 case TOKdcharv: | |
|
1165
226c07c71967
This should fix integers below 64 bit on big-endian systems.
Frits van Bommel <fvbommel wxs.nl>
parents:
1103
diff
changeset
|
4208 e = new IntegerExp(loc, (d_uns32)token.uns64value, Type::tdchar); |
| 336 | 4209 nextToken(); |
| 4210 break; | |
| 4211 | |
| 4212 case TOKstring: | |
| 4213 { unsigned char *s; | |
| 4214 unsigned len; | |
| 4215 unsigned char postfix; | |
| 4216 | |
| 4217 // cat adjacent strings | |
| 4218 s = token.ustring; | |
| 4219 len = token.len; | |
| 4220 postfix = token.postfix; | |
| 4221 while (1) | |
| 4222 { | |
| 4223 nextToken(); | |
| 4224 if (token.value == TOKstring) | |
| 4225 { unsigned len1; | |
| 4226 unsigned len2; | |
| 4227 unsigned char *s2; | |
| 4228 | |
| 4229 if (token.postfix) | |
| 4230 { if (token.postfix != postfix) | |
| 4231 error("mismatched string literal postfixes '%c' and '%c'", postfix, token.postfix); | |
| 4232 postfix = token.postfix; | |
| 4233 } | |
| 4234 | |
| 4235 len1 = len; | |
| 4236 len2 = token.len; | |
| 4237 len = len1 + len2; | |
| 4238 s2 = (unsigned char *)mem.malloc((len + 1) * sizeof(unsigned char)); | |
| 4239 memcpy(s2, s, len1 * sizeof(unsigned char)); | |
| 4240 memcpy(s2 + len1, token.ustring, (len2 + 1) * sizeof(unsigned char)); | |
| 4241 s = s2; | |
| 4242 } | |
| 4243 else | |
| 4244 break; | |
| 4245 } | |
| 4246 e = new StringExp(loc, s, len, postfix); | |
| 4247 break; | |
| 4248 } | |
| 4249 | |
| 4250 CASE_BASIC_TYPES_X(t): | |
| 4251 nextToken(); | |
| 4252 L1: | |
| 4253 check(TOKdot, t->toChars()); | |
| 4254 if (token.value != TOKidentifier) | |
| 4255 { error("found '%s' when expecting identifier following '%s.'", token.toChars(), t->toChars()); | |
| 4256 goto Lerr; | |
| 4257 } | |
| 4258 e = new TypeDotIdExp(loc, t, token.ident); | |
| 4259 nextToken(); | |
| 4260 break; | |
| 4261 | |
| 4262 case TOKtypeof: | |
| 4263 { Expression *exp; | |
| 4264 | |
| 4265 nextToken(); | |
| 4266 check(TOKlparen); | |
| 4267 exp = parseExpression(); | |
| 4268 check(TOKrparen); | |
| 4269 t = new TypeTypeof(loc, exp); | |
| 4270 e = new TypeExp(loc, t); | |
| 4271 break; | |
| 4272 } | |
| 4273 | |
| 4274 case TOKtypeid: | |
| 4275 { Type *t; | |
| 4276 | |
| 4277 nextToken(); | |
| 4278 check(TOKlparen, "typeid"); | |
| 4279 t = parseBasicType(); | |
| 4280 t = parseDeclarator(t,NULL); // ( type ) | |
| 4281 check(TOKrparen); | |
| 4282 e = new TypeidExp(loc, t); | |
| 4283 break; | |
| 4284 } | |
| 4285 | |
| 4286 #if DMDV2 | |
| 4287 case TOKtraits: | |
| 4288 { /* __traits(identifier, args...) | |
| 4289 */ | |
| 4290 Identifier *ident; | |
| 4291 Objects *args = NULL; | |
| 4292 | |
| 4293 nextToken(); | |
| 4294 check(TOKlparen); | |
| 4295 if (token.value != TOKidentifier) | |
| 4296 { error("__traits(identifier, args...) expected"); | |
| 4297 goto Lerr; | |
| 4298 } | |
| 4299 ident = token.ident; | |
| 4300 nextToken(); | |
| 4301 if (token.value == TOKcomma) | |
| 4302 args = parseTemplateArgumentList2(); // __traits(identifier, args...) | |
| 4303 else | |
| 4304 check(TOKrparen); // __traits(identifier) | |
| 4305 | |
| 4306 e = new TraitsExp(loc, ident, args); | |
| 4307 break; | |
| 4308 } | |
| 4309 #endif | |
| 4310 | |
| 4311 case TOKis: | |
| 4312 { Type *targ; | |
| 4313 Identifier *ident = NULL; | |
| 4314 Type *tspec = NULL; | |
| 4315 enum TOK tok = TOKreserved; | |
| 4316 enum TOK tok2 = TOKreserved; | |
| 4317 Loc loc = this->loc; | |
| 4318 | |
| 4319 nextToken(); | |
| 4320 if (token.value == TOKlparen) | |
| 4321 { | |
| 4322 nextToken(); | |
| 4323 targ = parseBasicType(); | |
| 4324 targ = parseDeclarator(targ, &ident); | |
| 4325 if (token.value == TOKcolon || token.value == TOKequal) | |
| 4326 { | |
| 4327 tok = token.value; | |
| 4328 nextToken(); | |
| 4329 if (tok == TOKequal && | |
| 4330 (token.value == TOKtypedef || | |
| 4331 token.value == TOKstruct || | |
| 4332 token.value == TOKunion || | |
| 4333 token.value == TOKclass || | |
| 4334 token.value == TOKsuper || | |
| 4335 token.value == TOKenum || | |
| 4336 token.value == TOKinterface || | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
4337 #if DMDV2 |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
4338 token.value == TOKconst && peek(&token)->value == TOKrparen || |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
4339 token.value == TOKinvariant && peek(&token)->value == TOKrparen || |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
4340 token.value == TOKimmutable && peek(&token)->value == TOKrparen || |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
4341 token.value == TOKshared && peek(&token)->value == TOKrparen || |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1165
diff
changeset
|
4342 #endif |
| 336 | 4343 token.value == TOKfunction || |
| 4344 token.value == TOKdelegate || | |
| 4345 token.value == TOKreturn)) | |
| 4346 { | |
| 4347 tok2 = token.value; | |
| 4348 nextToken(); | |
| 4349 } | |
| 4350 else | |
| 4351 { | |
| 4352 tspec = parseBasicType(); | |
| 4353 tspec = parseDeclarator(tspec, NULL); | |
| 4354 } | |
| 4355 } | |
| 4356 check(TOKrparen); | |
| 4357 } | |
| 4358 else | |
| 4359 { error("(type identifier : specialization) expected following is"); | |
| 4360 goto Lerr; | |
| 4361 } | |
| 4362 e = new IsExp(loc, targ, ident, tok, tspec, tok2); | |
| 4363 break; | |
| 4364 } | |
| 4365 | |
| 4366 case TOKassert: | |
| 4367 { Expression *msg = NULL; | |
| 4368 | |
| 4369 nextToken(); | |
| 4370 check(TOKlparen, "assert"); | |
| 4371 e = parseAssignExp(); | |
| 4372 if (token.value == TOKcomma) | |
| 4373 { nextToken(); | |
| 4374 msg = parseAssignExp(); | |
| 4375 } | |
| 4376 check(TOKrparen); | |
| 4377 e = new AssertExp(loc, e, msg); | |
| 4378 break; | |
| 4379 } | |
| 4380 | |
| 4381 case TOKmixin: | |
| 4382 { | |
| 4383 nextToken(); | |
| 4384 check(TOKlparen, "mixin"); | |
| 4385 e = parseAssignExp(); | |
| 4386 check(TOKrparen); | |
| 4387 e = new CompileExp(loc, e); | |
| 4388 break; | |
| 4389 } | |
| 4390 | |
| 4391 case TOKimport: | |
| 4392 { | |
| 4393 nextToken(); | |
| 4394 check(TOKlparen, "import"); | |
| 4395 e = parseAssignExp(); | |
| 4396 check(TOKrparen); | |
| 4397 e = new FileExp(loc, e); | |
| 4398 break; | |
| 4399 } | |
| 4400 | |
| 4401 case TOKlparen: | |
| 4402 if (peekPastParen(&token)->value == TOKlcurly) | |
| 4403 { // (arguments) { statements... } | |
| 4404 save = TOKdelegate; | |
| 4405 goto case_delegate; | |
| 4406 } | |
| 4407 // ( expression ) | |
| 4408 nextToken(); | |
| 4409 e = parseExpression(); | |
| 4410 check(loc, TOKrparen); | |
| 4411 break; | |
| 4412 | |
| 4413 case TOKlbracket: | |
| 4414 { /* Parse array literals and associative array literals: | |
| 4415 * [ value, value, value ... ] | |
| 4416 * [ key:value, key:value, key:value ... ] | |
| 4417 */ | |
| 4418 Expressions *values = new Expressions(); | |
| 4419 Expressions *keys = NULL; | |
| 4420 | |
| 4421 nextToken(); | |
| 4422 if (token.value != TOKrbracket) | |
| 4423 { | |
|
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
4424 while (token.value != TOKeof) |
| 336 | 4425 { |
| 4426 Expression *e = parseAssignExp(); | |
| 4427 if (token.value == TOKcolon && (keys || values->dim == 0)) | |
| 4428 { nextToken(); | |
| 4429 if (!keys) | |
| 4430 keys = new Expressions(); | |
| 4431 keys->push(e); | |
| 4432 e = parseAssignExp(); | |
| 4433 } | |
| 4434 else if (keys) | |
| 4435 { error("'key:value' expected for associative array literal"); | |
| 4436 delete keys; | |
| 4437 keys = NULL; | |
| 4438 } | |
| 4439 values->push(e); | |
| 4440 if (token.value == TOKrbracket) | |
| 4441 break; | |
| 4442 check(TOKcomma); | |
| 4443 } | |
| 4444 } | |
| 4445 check(TOKrbracket); | |
| 4446 | |
| 4447 if (keys) | |
| 4448 e = new AssocArrayLiteralExp(loc, keys, values); | |
| 4449 else | |
| 4450 e = new ArrayLiteralExp(loc, values); | |
| 4451 break; | |
| 4452 } | |
| 4453 | |
| 4454 case TOKlcurly: | |
| 4455 // { statements... } | |
| 4456 save = TOKdelegate; | |
| 4457 goto case_delegate; | |
| 4458 | |
| 4459 case TOKfunction: | |
| 4460 case TOKdelegate: | |
| 4461 save = token.value; | |
| 4462 nextToken(); | |
| 4463 case_delegate: | |
| 4464 { | |
| 4465 /* function type(parameters) { body } | |
| 4466 * delegate type(parameters) { body } | |
| 4467 */ | |
| 4468 Arguments *arguments; | |
| 4469 int varargs; | |
| 4470 FuncLiteralDeclaration *fd; | |
| 4471 Type *t; | |
| 4472 | |
| 4473 if (token.value == TOKlcurly) | |
| 4474 { | |
| 4475 t = NULL; | |
| 4476 varargs = 0; | |
| 4477 arguments = new Arguments(); | |
| 4478 } | |
| 4479 else | |
| 4480 { | |
| 4481 if (token.value == TOKlparen) | |
| 4482 t = NULL; | |
| 4483 else | |
| 4484 { | |
| 4485 t = parseBasicType(); | |
| 4486 t = parseBasicType2(t); // function return type | |
| 4487 } | |
| 4488 arguments = parseParameters(&varargs); | |
| 4489 } | |
| 4490 t = new TypeFunction(arguments, t, varargs, linkage); | |
| 4491 fd = new FuncLiteralDeclaration(loc, 0, t, save, NULL); | |
| 4492 parseContracts(fd); | |
| 4493 e = new FuncExp(loc, fd); | |
| 4494 break; | |
| 4495 } | |
| 4496 | |
| 4497 default: | |
| 4498 error("expression expected, not '%s'", token.toChars()); | |
| 4499 Lerr: | |
| 4500 // Anything for e, as long as it's not NULL | |
| 4501 e = new IntegerExp(loc, 0, Type::tint32); | |
| 4502 nextToken(); | |
| 4503 break; | |
| 4504 } | |
| 4505 return parsePostExp(e); | |
| 4506 } | |
| 4507 | |
| 4508 Expression *Parser::parsePostExp(Expression *e) | |
| 4509 { | |
| 4510 Loc loc; | |
| 4511 | |
| 4512 while (1) | |
| 4513 { | |
| 4514 loc = this->loc; | |
| 4515 switch (token.value) | |
| 4516 { | |
| 4517 case TOKdot: | |
| 4518 nextToken(); | |
| 4519 if (token.value == TOKidentifier) | |
| 4520 { Identifier *id = token.ident; | |
| 4521 | |
| 4522 nextToken(); | |
| 4523 if (token.value == TOKnot && peek(&token)->value == TOKlparen) | |
| 4524 { // identifier!(template-argument-list) | |
| 4525 TemplateInstance *tempinst; | |
| 4526 | |
| 4527 tempinst = new TemplateInstance(loc, id); | |
| 4528 nextToken(); | |
| 4529 tempinst->tiargs = parseTemplateArgumentList(); | |
| 4530 e = new DotTemplateInstanceExp(loc, e, tempinst); | |
| 4531 } | |
| 4532 else | |
| 4533 e = new DotIdExp(loc, e, id); | |
| 4534 continue; | |
| 4535 } | |
| 4536 else if (token.value == TOKnew) | |
| 4537 { | |
| 4538 e = parseNewExp(e); | |
| 4539 continue; | |
| 4540 } | |
| 4541 else | |
| 4542 error("identifier expected following '.', not '%s'", token.toChars()); | |
| 4543 break; | |
| 4544 | |
| 4545 case TOKplusplus: | |
| 4546 e = new PostExp(TOKplusplus, loc, e); | |
| 4547 break; | |
| 4548 | |
| 4549 case TOKminusminus: | |
| 4550 e = new PostExp(TOKminusminus, loc, e); | |
| 4551 break; | |
| 4552 | |
| 4553 case TOKlparen: | |
| 4554 e = new CallExp(loc, e, parseArguments()); | |
| 4555 continue; | |
| 4556 | |
| 4557 case TOKlbracket: | |
| 4558 { // array dereferences: | |
| 4559 // array[index] | |
| 4560 // array[] | |
| 4561 // array[lwr .. upr] | |
| 4562 Expression *index; | |
| 4563 Expression *upr; | |
| 4564 | |
| 4565 inBrackets++; | |
| 4566 nextToken(); | |
| 4567 if (token.value == TOKrbracket) | |
| 4568 { // array[] | |
| 4569 e = new SliceExp(loc, e, NULL, NULL); | |
| 4570 nextToken(); | |
| 4571 } | |
| 4572 else | |
| 4573 { | |
| 4574 index = parseAssignExp(); | |
| 4575 if (token.value == TOKslice) | |
| 4576 { // array[lwr .. upr] | |
| 4577 nextToken(); | |
| 4578 upr = parseAssignExp(); | |
| 4579 e = new SliceExp(loc, e, index, upr); | |
| 4580 } | |
| 4581 else | |
| 4582 { // array[index, i2, i3, i4, ...] | |
| 4583 Expressions *arguments = new Expressions(); | |
| 4584 arguments->push(index); | |
| 4585 if (token.value == TOKcomma) | |
| 4586 { | |
| 4587 nextToken(); | |
| 4588 while (1) | |
| 4589 { Expression *arg; | |
| 4590 | |
| 4591 arg = parseAssignExp(); | |
| 4592 arguments->push(arg); | |
| 4593 if (token.value == TOKrbracket) | |
| 4594 break; | |
| 4595 check(TOKcomma); | |
| 4596 } | |
| 4597 } | |
| 4598 e = new ArrayExp(loc, e, arguments); | |
| 4599 } | |
| 4600 check(TOKrbracket); | |
| 4601 inBrackets--; | |
| 4602 } | |
| 4603 continue; | |
| 4604 } | |
| 4605 | |
| 4606 default: | |
| 4607 return e; | |
| 4608 } | |
| 4609 nextToken(); | |
| 4610 } | |
| 4611 } | |
| 4612 | |
| 4613 Expression *Parser::parseUnaryExp() | |
| 4614 { Expression *e; | |
| 4615 Loc loc = this->loc; | |
| 4616 | |
| 4617 switch (token.value) | |
| 4618 { | |
| 4619 case TOKand: | |
| 4620 nextToken(); | |
| 4621 e = parseUnaryExp(); | |
| 4622 e = new AddrExp(loc, e); | |
| 4623 break; | |
| 4624 | |
| 4625 case TOKplusplus: | |
| 4626 nextToken(); | |
| 4627 e = parseUnaryExp(); | |
| 4628 e = new AddAssignExp(loc, e, new IntegerExp(loc, 1, Type::tint32)); | |
| 4629 break; | |
| 4630 | |
| 4631 case TOKminusminus: | |
| 4632 nextToken(); | |
| 4633 e = parseUnaryExp(); | |
| 4634 e = new MinAssignExp(loc, e, new IntegerExp(loc, 1, Type::tint32)); | |
| 4635 break; | |
| 4636 | |
| 4637 case TOKmul: | |
| 4638 nextToken(); | |
| 4639 e = parseUnaryExp(); | |
| 4640 e = new PtrExp(loc, e); | |
| 4641 break; | |
| 4642 | |
| 4643 case TOKmin: | |
| 4644 nextToken(); | |
| 4645 e = parseUnaryExp(); | |
| 4646 e = new NegExp(loc, e); | |
| 4647 break; | |
| 4648 | |
| 4649 case TOKadd: | |
| 4650 nextToken(); | |
| 4651 e = parseUnaryExp(); | |
| 4652 e = new UAddExp(loc, e); | |
| 4653 break; | |
| 4654 | |
| 4655 case TOKnot: | |
| 4656 nextToken(); | |
| 4657 e = parseUnaryExp(); | |
| 4658 e = new NotExp(loc, e); | |
| 4659 break; | |
| 4660 | |
| 4661 case TOKtilde: | |
| 4662 nextToken(); | |
| 4663 e = parseUnaryExp(); | |
| 4664 e = new ComExp(loc, e); | |
| 4665 break; | |
| 4666 | |
| 4667 case TOKdelete: | |
| 4668 nextToken(); | |
| 4669 e = parseUnaryExp(); | |
| 4670 e = new DeleteExp(loc, e); | |
| 4671 break; | |
| 4672 | |
| 4673 case TOKnew: | |
| 4674 e = parseNewExp(NULL); | |
| 4675 break; | |
| 4676 | |
| 4677 case TOKcast: // cast(type) expression | |
| 4678 { Type *t; | |
| 4679 | |
| 4680 nextToken(); | |
| 4681 check(TOKlparen); | |
| 4682 t = parseBasicType(); | |
| 4683 t = parseDeclarator(t,NULL); // ( type ) | |
| 4684 check(TOKrparen); | |
| 4685 | |
| 4686 e = parseUnaryExp(); | |
| 4687 e = new CastExp(loc, e, t); | |
| 4688 break; | |
| 4689 } | |
| 4690 | |
| 4691 case TOKlparen: | |
| 4692 { Token *tk; | |
| 4693 | |
| 4694 tk = peek(&token); | |
| 4695 #if CCASTSYNTAX | |
| 4696 // If cast | |
| 4697 if (isDeclaration(tk, 0, TOKrparen, &tk)) | |
| 4698 { | |
| 4699 tk = peek(tk); // skip over right parenthesis | |
| 4700 switch (tk->value) | |
| 4701 { | |
|
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
4702 case TOKnot: |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
4703 tk = peek(tk); |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
4704 if (tk->value == TOKis) // !is |
|
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
4705 break; |
| 336 | 4706 case TOKdot: |
| 4707 case TOKplusplus: | |
| 4708 case TOKminusminus: | |
| 4709 case TOKdelete: | |
| 4710 case TOKnew: | |
| 4711 case TOKlparen: | |
| 4712 case TOKidentifier: | |
| 4713 case TOKthis: | |
| 4714 case TOKsuper: | |
| 4715 case TOKint32v: | |
| 4716 case TOKuns32v: | |
| 4717 case TOKint64v: | |
| 4718 case TOKuns64v: | |
| 4719 case TOKfloat32v: | |
| 4720 case TOKfloat64v: | |
| 4721 case TOKfloat80v: | |
| 4722 case TOKimaginary32v: | |
| 4723 case TOKimaginary64v: | |
| 4724 case TOKimaginary80v: | |
| 4725 case TOKnull: | |
| 4726 case TOKtrue: | |
| 4727 case TOKfalse: | |
| 4728 case TOKcharv: | |
| 4729 case TOKwcharv: | |
| 4730 case TOKdcharv: | |
| 4731 case TOKstring: | |
| 4732 #if 0 | |
| 4733 case TOKtilde: | |
| 4734 case TOKand: | |
| 4735 case TOKmul: | |
| 4736 case TOKmin: | |
| 4737 case TOKadd: | |
| 4738 #endif | |
| 4739 case TOKfunction: | |
| 4740 case TOKdelegate: | |
| 4741 case TOKtypeof: | |
| 4742 #if DMDV2 | |
| 4743 case TOKfile: | |
| 4744 case TOKline: | |
| 4745 #endif | |
| 4746 CASE_BASIC_TYPES: // (type)int.size | |
| 4747 { // (type) una_exp | |
| 4748 Type *t; | |
| 4749 | |
| 4750 nextToken(); | |
| 4751 t = parseBasicType(); | |
| 4752 t = parseDeclarator(t,NULL); | |
| 4753 check(TOKrparen); | |
| 4754 | |
| 4755 // if .identifier | |
| 4756 if (token.value == TOKdot) | |
| 4757 { | |
| 4758 nextToken(); | |
| 4759 if (token.value != TOKidentifier) | |
| 4760 { error("Identifier expected following (type)."); | |
| 4761 return NULL; | |
| 4762 } | |
| 4763 e = new TypeDotIdExp(loc, t, token.ident); | |
| 4764 nextToken(); | |
| 4765 e = parsePostExp(e); | |
| 4766 } | |
| 4767 else | |
| 4768 { | |
| 4769 e = parseUnaryExp(); | |
| 4770 e = new CastExp(loc, e, t); | |
| 4771 error("C style cast illegal, use %s", e->toChars()); | |
| 4772 } | |
| 4773 return e; | |
| 4774 } | |
| 4775 } | |
| 4776 } | |
| 4777 #endif | |
| 4778 e = parsePrimaryExp(); | |
| 4779 break; | |
| 4780 } | |
| 4781 default: | |
| 4782 e = parsePrimaryExp(); | |
| 4783 break; | |
| 4784 } | |
| 4785 assert(e); | |
| 4786 return e; | |
| 4787 } | |
| 4788 | |
| 4789 Expression *Parser::parseMulExp() | |
| 4790 { Expression *e; | |
| 4791 Expression *e2; | |
| 4792 Loc loc = this->loc; | |
| 4793 | |
| 4794 e = parseUnaryExp(); | |
| 4795 while (1) | |
| 4796 { | |
| 4797 switch (token.value) | |
| 4798 { | |
| 4799 case TOKmul: nextToken(); e2 = parseUnaryExp(); e = new MulExp(loc,e,e2); continue; | |
| 4800 case TOKdiv: nextToken(); e2 = parseUnaryExp(); e = new DivExp(loc,e,e2); continue; | |
| 4801 case TOKmod: nextToken(); e2 = parseUnaryExp(); e = new ModExp(loc,e,e2); continue; | |
| 4802 | |
| 4803 default: | |
| 4804 break; | |
| 4805 } | |
| 4806 break; | |
| 4807 } | |
| 4808 return e; | |
| 4809 } | |
| 4810 | |
| 4811 Expression *Parser::parseAddExp() | |
| 4812 { Expression *e; | |
| 4813 Expression *e2; | |
| 4814 Loc loc = this->loc; | |
| 4815 | |
| 4816 e = parseMulExp(); | |
| 4817 while (1) | |
| 4818 { | |
| 4819 switch (token.value) | |
| 4820 { | |
| 4821 case TOKadd: nextToken(); e2 = parseMulExp(); e = new AddExp(loc,e,e2); continue; | |
| 4822 case TOKmin: nextToken(); e2 = parseMulExp(); e = new MinExp(loc,e,e2); continue; | |
| 4823 case TOKtilde: nextToken(); e2 = parseMulExp(); e = new CatExp(loc,e,e2); continue; | |
| 4824 | |
| 4825 default: | |
| 4826 break; | |
| 4827 } | |
| 4828 break; | |
| 4829 } | |
| 4830 return e; | |
| 4831 } | |
| 4832 | |
| 4833 Expression *Parser::parseShiftExp() | |
| 4834 { Expression *e; | |
| 4835 Expression *e2; | |
| 4836 Loc loc = this->loc; | |
| 4837 | |
| 4838 e = parseAddExp(); | |
| 4839 while (1) | |
| 4840 { | |
| 4841 switch (token.value) | |
| 4842 { | |
| 4843 case TOKshl: nextToken(); e2 = parseAddExp(); e = new ShlExp(loc,e,e2); continue; | |
| 4844 case TOKshr: nextToken(); e2 = parseAddExp(); e = new ShrExp(loc,e,e2); continue; | |
| 4845 case TOKushr: nextToken(); e2 = parseAddExp(); e = new UshrExp(loc,e,e2); continue; | |
| 4846 | |
| 4847 default: | |
| 4848 break; | |
| 4849 } | |
| 4850 break; | |
| 4851 } | |
| 4852 return e; | |
| 4853 } | |
| 4854 | |
| 4855 Expression *Parser::parseRelExp() | |
| 4856 { Expression *e; | |
| 4857 Expression *e2; | |
| 4858 enum TOK op; | |
| 4859 Loc loc = this->loc; | |
| 4860 | |
| 4861 e = parseShiftExp(); | |
| 4862 while (1) | |
| 4863 { | |
| 4864 switch (token.value) | |
| 4865 { | |
| 4866 case TOKlt: | |
| 4867 case TOKle: | |
| 4868 case TOKgt: | |
| 4869 case TOKge: | |
| 4870 case TOKunord: | |
| 4871 case TOKlg: | |
| 4872 case TOKleg: | |
| 4873 case TOKule: | |
| 4874 case TOKul: | |
| 4875 case TOKuge: | |
| 4876 case TOKug: | |
| 4877 case TOKue: | |
| 4878 op = token.value; | |
| 4879 nextToken(); | |
| 4880 e2 = parseShiftExp(); | |
| 4881 e = new CmpExp(op, loc, e, e2); | |
| 4882 continue; | |
| 4883 | |
| 4884 case TOKin: | |
| 4885 nextToken(); | |
| 4886 e2 = parseShiftExp(); | |
| 4887 e = new InExp(loc, e, e2); | |
| 4888 continue; | |
| 4889 | |
| 4890 default: | |
| 4891 break; | |
| 4892 } | |
| 4893 break; | |
| 4894 } | |
| 4895 return e; | |
| 4896 } | |
| 4897 | |
| 4898 Expression *Parser::parseEqualExp() | |
| 4899 { Expression *e; | |
| 4900 Expression *e2; | |
| 4901 Token *t; | |
| 4902 Loc loc = this->loc; | |
| 4903 | |
| 4904 e = parseRelExp(); | |
| 4905 while (1) | |
| 4906 { enum TOK value = token.value; | |
| 4907 | |
| 4908 switch (value) | |
| 4909 { | |
| 4910 case TOKequal: | |
| 4911 case TOKnotequal: | |
| 4912 nextToken(); | |
| 4913 e2 = parseRelExp(); | |
| 4914 e = new EqualExp(value, loc, e, e2); | |
| 4915 continue; | |
| 4916 | |
| 4917 case TOKidentity: | |
| 4918 error("'===' is no longer legal, use 'is' instead"); | |
| 4919 goto L1; | |
| 4920 | |
| 4921 case TOKnotidentity: | |
| 4922 error("'!==' is no longer legal, use '!is' instead"); | |
| 4923 goto L1; | |
| 4924 | |
| 4925 case TOKis: | |
| 4926 value = TOKidentity; | |
| 4927 goto L1; | |
| 4928 | |
| 4929 case TOKnot: | |
| 4930 // Attempt to identify '!is' | |
| 4931 t = peek(&token); | |
| 4932 if (t->value != TOKis) | |
| 4933 break; | |
| 4934 nextToken(); | |
| 4935 value = TOKnotidentity; | |
| 4936 goto L1; | |
| 4937 | |
| 4938 L1: | |
| 4939 nextToken(); | |
| 4940 e2 = parseRelExp(); | |
| 4941 e = new IdentityExp(value, loc, e, e2); | |
| 4942 continue; | |
| 4943 | |
| 4944 default: | |
| 4945 break; | |
| 4946 } | |
| 4947 break; | |
| 4948 } | |
| 4949 return e; | |
| 4950 } | |
| 4951 | |
| 4952 Expression *Parser::parseCmpExp() | |
| 4953 { Expression *e; | |
| 4954 Expression *e2; | |
| 4955 Token *t; | |
| 4956 Loc loc = this->loc; | |
| 4957 | |
| 4958 e = parseShiftExp(); | |
| 4959 enum TOK op = token.value; | |
| 4960 | |
| 4961 switch (op) | |
| 4962 { | |
| 4963 case TOKequal: | |
| 4964 case TOKnotequal: | |
| 4965 nextToken(); | |
| 4966 e2 = parseShiftExp(); | |
| 4967 e = new EqualExp(op, loc, e, e2); | |
| 4968 break; | |
| 4969 | |
| 4970 case TOKis: | |
| 4971 op = TOKidentity; | |
| 4972 goto L1; | |
| 4973 | |
| 4974 case TOKnot: | |
| 4975 // Attempt to identify '!is' | |
| 4976 t = peek(&token); | |
| 4977 if (t->value != TOKis) | |
| 4978 break; | |
| 4979 nextToken(); | |
| 4980 op = TOKnotidentity; | |
| 4981 goto L1; | |
| 4982 | |
| 4983 L1: | |
| 4984 nextToken(); | |
| 4985 e2 = parseShiftExp(); | |
| 4986 e = new IdentityExp(op, loc, e, e2); | |
| 4987 break; | |
| 4988 | |
| 4989 case TOKlt: | |
| 4990 case TOKle: | |
| 4991 case TOKgt: | |
| 4992 case TOKge: | |
| 4993 case TOKunord: | |
| 4994 case TOKlg: | |
| 4995 case TOKleg: | |
| 4996 case TOKule: | |
| 4997 case TOKul: | |
| 4998 case TOKuge: | |
| 4999 case TOKug: | |
| 5000 case TOKue: | |
| 5001 nextToken(); | |
| 5002 e2 = parseShiftExp(); | |
| 5003 e = new CmpExp(op, loc, e, e2); | |
| 5004 break; | |
| 5005 | |
| 5006 case TOKin: | |
| 5007 nextToken(); | |
| 5008 e2 = parseShiftExp(); | |
| 5009 e = new InExp(loc, e, e2); | |
| 5010 break; | |
| 5011 | |
| 5012 default: | |
| 5013 break; | |
| 5014 } | |
| 5015 return e; | |
| 5016 } | |
| 5017 | |
| 5018 Expression *Parser::parseAndExp() | |
| 5019 { Expression *e; | |
| 5020 Expression *e2; | |
| 5021 Loc loc = this->loc; | |
| 5022 | |
| 5023 if (global.params.Dversion == 1) | |
| 5024 { | |
| 5025 e = parseEqualExp(); | |
| 5026 while (token.value == TOKand) | |
| 5027 { | |
| 5028 nextToken(); | |
| 5029 e2 = parseEqualExp(); | |
| 5030 e = new AndExp(loc,e,e2); | |
| 5031 loc = this->loc; | |
| 5032 } | |
| 5033 } | |
| 5034 else | |
| 5035 { | |
| 5036 e = parseCmpExp(); | |
| 5037 while (token.value == TOKand) | |
| 5038 { | |
| 5039 nextToken(); | |
| 5040 e2 = parseCmpExp(); | |
| 5041 e = new AndExp(loc,e,e2); | |
| 5042 loc = this->loc; | |
| 5043 } | |
| 5044 } | |
| 5045 return e; | |
| 5046 } | |
| 5047 | |
| 5048 Expression *Parser::parseXorExp() | |
| 5049 { Expression *e; | |
| 5050 Expression *e2; | |
| 5051 Loc loc = this->loc; | |
| 5052 | |
| 5053 e = parseAndExp(); | |
| 5054 while (token.value == TOKxor) | |
| 5055 { | |
| 5056 nextToken(); | |
| 5057 e2 = parseAndExp(); | |
| 5058 e = new XorExp(loc, e, e2); | |
| 5059 } | |
| 5060 return e; | |
| 5061 } | |
| 5062 | |
| 5063 Expression *Parser::parseOrExp() | |
| 5064 { Expression *e; | |
| 5065 Expression *e2; | |
| 5066 Loc loc = this->loc; | |
| 5067 | |
| 5068 e = parseXorExp(); | |
| 5069 while (token.value == TOKor) | |
| 5070 { | |
| 5071 nextToken(); | |
| 5072 e2 = parseXorExp(); | |
| 5073 e = new OrExp(loc, e, e2); | |
| 5074 } | |
| 5075 return e; | |
| 5076 } | |
| 5077 | |
| 5078 Expression *Parser::parseAndAndExp() | |
| 5079 { Expression *e; | |
| 5080 Expression *e2; | |
| 5081 Loc loc = this->loc; | |
| 5082 | |
| 5083 e = parseOrExp(); | |
| 5084 while (token.value == TOKandand) | |
| 5085 { | |
| 5086 nextToken(); | |
| 5087 e2 = parseOrExp(); | |
| 5088 e = new AndAndExp(loc, e, e2); | |
| 5089 } | |
| 5090 return e; | |
| 5091 } | |
| 5092 | |
| 5093 Expression *Parser::parseOrOrExp() | |
| 5094 { Expression *e; | |
| 5095 Expression *e2; | |
| 5096 Loc loc = this->loc; | |
| 5097 | |
| 5098 e = parseAndAndExp(); | |
| 5099 while (token.value == TOKoror) | |
| 5100 { | |
| 5101 nextToken(); | |
| 5102 e2 = parseAndAndExp(); | |
| 5103 e = new OrOrExp(loc, e, e2); | |
| 5104 } | |
| 5105 return e; | |
| 5106 } | |
| 5107 | |
| 5108 Expression *Parser::parseCondExp() | |
| 5109 { Expression *e; | |
| 5110 Expression *e1; | |
| 5111 Expression *e2; | |
| 5112 Loc loc = this->loc; | |
| 5113 | |
| 5114 e = parseOrOrExp(); | |
| 5115 if (token.value == TOKquestion) | |
| 5116 { | |
| 5117 nextToken(); | |
| 5118 e1 = parseExpression(); | |
| 5119 check(TOKcolon); | |
| 5120 e2 = parseCondExp(); | |
| 5121 e = new CondExp(loc, e, e1, e2); | |
| 5122 } | |
| 5123 return e; | |
| 5124 } | |
| 5125 | |
| 5126 Expression *Parser::parseAssignExp() | |
| 5127 { Expression *e; | |
| 5128 Expression *e2; | |
| 5129 Loc loc; | |
| 5130 | |
| 5131 e = parseCondExp(); | |
| 5132 while (1) | |
| 5133 { | |
| 5134 loc = this->loc; | |
| 5135 switch (token.value) | |
| 5136 { | |
| 5137 #define X(tok,ector) \ | |
| 5138 case tok: nextToken(); e2 = parseAssignExp(); e = new ector(loc,e,e2); continue; | |
| 5139 | |
| 5140 X(TOKassign, AssignExp); | |
| 5141 X(TOKaddass, AddAssignExp); | |
| 5142 X(TOKminass, MinAssignExp); | |
| 5143 X(TOKmulass, MulAssignExp); | |
| 5144 X(TOKdivass, DivAssignExp); | |
| 5145 X(TOKmodass, ModAssignExp); | |
| 5146 X(TOKandass, AndAssignExp); | |
| 5147 X(TOKorass, OrAssignExp); | |
| 5148 X(TOKxorass, XorAssignExp); | |
| 5149 X(TOKshlass, ShlAssignExp); | |
| 5150 X(TOKshrass, ShrAssignExp); | |
| 5151 X(TOKushrass, UshrAssignExp); | |
| 5152 X(TOKcatass, CatAssignExp); | |
| 5153 | |
| 5154 #undef X | |
| 5155 default: | |
| 5156 break; | |
| 5157 } | |
| 5158 break; | |
| 5159 } | |
| 5160 return e; | |
| 5161 } | |
| 5162 | |
| 5163 Expression *Parser::parseExpression() | |
| 5164 { Expression *e; | |
| 5165 Expression *e2; | |
| 5166 Loc loc = this->loc; | |
| 5167 | |
| 5168 //printf("Parser::parseExpression() loc = %d\n", loc.linnum); | |
| 5169 e = parseAssignExp(); | |
| 5170 while (token.value == TOKcomma) | |
| 5171 { | |
| 5172 nextToken(); | |
| 5173 e2 = parseAssignExp(); | |
| 5174 e = new CommaExp(loc, e, e2); | |
| 5175 loc = this->loc; | |
| 5176 } | |
| 5177 return e; | |
| 5178 } | |
| 5179 | |
| 5180 | |
| 5181 /************************* | |
| 5182 * Collect argument list. | |
| 5183 * Assume current token is '(' or '['. | |
| 5184 */ | |
| 5185 | |
| 5186 Expressions *Parser::parseArguments() | |
| 5187 { // function call | |
| 5188 Expressions *arguments; | |
| 5189 Expression *arg; | |
| 5190 enum TOK endtok; | |
| 5191 | |
| 5192 arguments = new Expressions(); | |
| 5193 if (token.value == TOKlbracket) | |
| 5194 endtok = TOKrbracket; | |
| 5195 else | |
| 5196 endtok = TOKrparen; | |
| 5197 | |
| 5198 { | |
| 5199 nextToken(); | |
| 5200 if (token.value != endtok) | |
| 5201 { | |
| 5202 while (1) | |
| 5203 { | |
| 5204 arg = parseAssignExp(); | |
| 5205 arguments->push(arg); | |
| 5206 if (token.value == endtok) | |
| 5207 break; | |
| 5208 check(TOKcomma); | |
| 5209 } | |
| 5210 } | |
| 5211 check(endtok); | |
| 5212 } | |
| 5213 return arguments; | |
| 5214 } | |
| 5215 | |
| 5216 /******************************************* | |
| 5217 */ | |
| 5218 | |
| 5219 Expression *Parser::parseNewExp(Expression *thisexp) | |
| 5220 { Type *t; | |
| 5221 Expressions *newargs; | |
| 5222 Expressions *arguments = NULL; | |
| 5223 Expression *e; | |
| 5224 Loc loc = this->loc; | |
| 5225 | |
| 5226 nextToken(); | |
| 5227 newargs = NULL; | |
| 5228 if (token.value == TOKlparen) | |
| 5229 { | |
| 5230 newargs = parseArguments(); | |
| 5231 } | |
| 5232 | |
| 5233 // An anonymous nested class starts with "class" | |
| 5234 if (token.value == TOKclass) | |
| 5235 { | |
| 5236 nextToken(); | |
| 5237 if (token.value == TOKlparen) | |
| 5238 arguments = parseArguments(); | |
| 5239 | |
| 5240 BaseClasses *baseclasses = NULL; | |
| 5241 if (token.value != TOKlcurly) | |
| 5242 baseclasses = parseBaseClasses(); | |
| 5243 | |
| 5244 Identifier *id = NULL; | |
| 5245 ClassDeclaration *cd = new ClassDeclaration(loc, id, baseclasses); | |
| 5246 | |
| 5247 if (token.value != TOKlcurly) | |
| 5248 { error("{ members } expected for anonymous class"); | |
| 5249 cd->members = NULL; | |
| 5250 } | |
| 5251 else | |
| 5252 { | |
| 5253 nextToken(); | |
| 5254 Array *decl = parseDeclDefs(0); | |
| 5255 if (token.value != TOKrcurly) | |
| 5256 error("class member expected"); | |
| 5257 nextToken(); | |
| 5258 cd->members = decl; | |
| 5259 } | |
| 5260 | |
| 5261 e = new NewAnonClassExp(loc, thisexp, newargs, cd, arguments); | |
| 5262 | |
| 5263 return e; | |
| 5264 } | |
| 5265 | |
| 5266 #if LTORARRAYDECL | |
| 5267 t = parseBasicType(); | |
| 5268 t = parseBasicType2(t); | |
| 5269 if (t->ty == Taarray) | |
| 5270 { | |
| 5271 Type *index = ((TypeAArray *)t)->index; | |
| 5272 | |
| 5273 Expression *e = index->toExpression(); | |
| 5274 if (e) | |
| 5275 { arguments = new Expressions(); | |
| 5276 arguments->push(e); | |
| 5277 t = new TypeDArray(t->next); | |
| 5278 } | |
| 5279 else | |
| 5280 { | |
| 5281 error("need size of rightmost array, not type %s", index->toChars()); | |
| 5282 return new NullExp(loc); | |
| 5283 } | |
| 5284 } | |
| 5285 else if (t->ty == Tsarray) | |
| 5286 { | |
| 5287 TypeSArray *tsa = (TypeSArray *)t; | |
| 5288 Expression *e = tsa->dim; | |
| 5289 | |
| 5290 arguments = new Expressions(); | |
| 5291 arguments->push(e); | |
| 5292 t = new TypeDArray(t->next); | |
| 5293 } | |
| 5294 else if (token.value == TOKlparen) | |
| 5295 { | |
| 5296 arguments = parseArguments(); | |
| 5297 } | |
| 5298 #else | |
| 5299 t = parseBasicType(); | |
| 5300 while (token.value == TOKmul) | |
| 5301 { t = new TypePointer(t); | |
| 5302 nextToken(); | |
| 5303 } | |
| 5304 if (token.value == TOKlbracket) | |
| 5305 { | |
| 5306 Expression *e; | |
| 5307 | |
| 5308 nextToken(); | |
| 5309 e = parseAssignExp(); | |
| 5310 arguments = new Array(); | |
| 5311 arguments->push(e); | |
| 5312 check(TOKrbracket); | |
| 5313 t = parseDeclarator(t, NULL); | |
| 5314 t = new TypeDArray(t); | |
| 5315 } | |
| 5316 else if (token.value == TOKlparen) | |
| 5317 arguments = parseArguments(); | |
| 5318 #endif | |
| 5319 e = new NewExp(loc, thisexp, newargs, t, arguments); | |
| 5320 return e; | |
| 5321 } | |
| 5322 | |
| 5323 /********************************************** | |
| 5324 */ | |
| 5325 | |
| 5326 void Parser::addComment(Dsymbol *s, unsigned char *blockComment) | |
| 5327 { | |
| 5328 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
|
5329 token.lineComment = NULL; |
| 336 | 5330 } |
| 5331 | |
| 5332 | |
| 5333 /********************************* ***************************/ | |
| 5334 |