Mercurial > projects > ldc
annotate dmd/parse.c @ 810:67fcd9df8b79
Fixed ModuleInfo patch check, failed on 64bit
author | Tomas Lindquist Olsen <tomas.l.olsen@gmail.com> |
---|---|
date | Sun, 30 Nov 2008 20:41:17 +0100 |
parents | 041c1596d217 |
children | bc982f1ad106 |
rev | line source |
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336 | 1 |
2 // Compiler implementation of the D programming language | |
3 // Copyright (c) 1999-2008 by Digital Mars | |
4 // All Rights Reserved | |
5 // written by Walter Bright | |
6 // http://www.digitalmars.com | |
7 // License for redistribution is by either the Artistic License | |
8 // in artistic.txt, or the GNU General Public License in gnu.txt. | |
9 // See the included readme.txt for details. | |
10 | |
11 // This is the D parser | |
12 | |
13 #include <stdio.h> | |
14 #include <assert.h> | |
15 | |
16 #include "mem.h" | |
17 #include "lexer.h" | |
18 #include "parse.h" | |
19 #include "init.h" | |
20 #include "attrib.h" | |
21 #include "cond.h" | |
22 #include "mtype.h" | |
23 #include "template.h" | |
24 #include "staticassert.h" | |
25 #include "expression.h" | |
26 #include "statement.h" | |
27 #include "module.h" | |
28 #include "dsymbol.h" | |
29 #include "import.h" | |
30 #include "declaration.h" | |
31 #include "aggregate.h" | |
32 #include "enum.h" | |
33 #include "id.h" | |
34 #include "version.h" | |
35 | |
36 // How multiple declarations are parsed. | |
37 // If 1, treat as C. | |
38 // If 0, treat: | |
39 // int *p, i; | |
40 // as: | |
41 // int* p; | |
42 // int* i; | |
43 #define CDECLSYNTAX 0 | |
44 | |
45 // Support C cast syntax: | |
46 // (type)(expression) | |
47 #define CCASTSYNTAX 1 | |
48 | |
49 // Support postfix C array declarations, such as | |
50 // int a[3][4]; | |
51 #define CARRAYDECL 1 | |
52 | |
53 // Support left-to-right array declarations | |
54 #define LTORARRAYDECL 1 | |
55 | |
56 | |
57 Parser::Parser(Module *module, unsigned char *base, unsigned length, int doDocComment) | |
58 : Lexer(module, base, 0, length, doDocComment, 0) | |
59 { | |
60 //printf("Parser::Parser()\n"); | |
61 md = NULL; | |
62 linkage = LINKd; | |
63 endloc = 0; | |
64 inBrackets = 0; | |
65 //nextToken(); // start up the scanner | |
66 } | |
67 | |
68 Array *Parser::parseModule() | |
69 { | |
70 Array *decldefs; | |
71 | |
72 // ModuleDeclation leads off | |
73 if (token.value == TOKmodule) | |
74 { | |
75 unsigned char *comment = token.blockComment; | |
76 | |
77 nextToken(); | |
78 if (token.value != TOKidentifier) | |
79 { error("Identifier expected following module"); | |
80 goto Lerr; | |
81 } | |
82 else | |
83 { | |
84 Array *a = NULL; | |
85 Identifier *id; | |
86 | |
87 id = token.ident; | |
88 while (nextToken() == TOKdot) | |
89 { | |
90 if (!a) | |
91 a = new Array(); | |
92 a->push(id); | |
93 nextToken(); | |
94 if (token.value != TOKidentifier) | |
95 { error("Identifier expected following package"); | |
96 goto Lerr; | |
97 } | |
98 id = token.ident; | |
99 } | |
100 | |
101 md = new ModuleDeclaration(a, id); | |
102 | |
103 if (token.value != TOKsemicolon) | |
104 error("';' expected following module declaration instead of %s", token.toChars()); | |
105 nextToken(); | |
106 addComment(mod, comment); | |
107 } | |
108 } | |
109 | |
110 decldefs = parseDeclDefs(0); | |
111 if (token.value != TOKeof) | |
112 { error("unrecognized declaration"); | |
113 goto Lerr; | |
114 } | |
115 return decldefs; | |
116 | |
117 Lerr: | |
118 while (token.value != TOKsemicolon && token.value != TOKeof) | |
119 nextToken(); | |
120 nextToken(); | |
121 return new Array(); | |
122 } | |
123 | |
124 Array *Parser::parseDeclDefs(int once) | |
125 { Dsymbol *s; | |
126 Array *decldefs; | |
127 Array *a; | |
128 Array *aelse; | |
129 enum PROT prot; | |
130 unsigned stc; | |
131 Condition *condition; | |
132 unsigned char *comment; | |
133 | |
134 //printf("Parser::parseDeclDefs()\n"); | |
135 decldefs = new Array(); | |
136 do | |
137 { | |
138 comment = token.blockComment; | |
139 switch (token.value) | |
140 { | |
141 case TOKenum: | |
142 s = parseEnum(); | |
143 break; | |
144 | |
145 case TOKstruct: | |
146 case TOKunion: | |
147 case TOKclass: | |
148 case TOKinterface: | |
149 s = parseAggregate(); | |
150 break; | |
151 | |
152 case TOKimport: | |
153 s = parseImport(decldefs, 0); | |
154 break; | |
155 | |
156 case TOKtemplate: | |
157 s = (Dsymbol *)parseTemplateDeclaration(); | |
158 break; | |
159 | |
160 case TOKmixin: | |
161 { Loc loc = this->loc; | |
162 if (peek(&token)->value == TOKlparen) | |
163 { // mixin(string) | |
164 nextToken(); | |
165 check(TOKlparen, "mixin"); | |
166 Expression *e = parseAssignExp(); | |
167 check(TOKrparen); | |
168 check(TOKsemicolon); | |
169 s = new CompileDeclaration(loc, e); | |
170 break; | |
171 } | |
172 s = parseMixin(); | |
173 break; | |
174 } | |
175 | |
176 CASE_BASIC_TYPES: | |
177 case TOKalias: | |
178 case TOKtypedef: | |
179 case TOKidentifier: | |
180 case TOKtypeof: | |
181 case TOKdot: | |
182 Ldeclaration: | |
183 a = parseDeclarations(); | |
184 decldefs->append(a); | |
185 continue; | |
186 | |
187 case TOKthis: | |
188 s = parseCtor(); | |
189 break; | |
190 | |
191 case TOKtilde: | |
192 s = parseDtor(); | |
193 break; | |
194 | |
195 case TOKinvariant: | |
196 #if 1 | |
197 s = parseInvariant(); | |
198 #else | |
199 if (peek(&token)->value == TOKlcurly) | |
200 s = parseInvariant(); | |
201 else | |
202 { | |
203 stc = STCinvariant; | |
204 goto Lstc; | |
205 } | |
206 #endif | |
207 break; | |
208 | |
209 case TOKunittest: | |
210 s = parseUnitTest(); | |
211 break; | |
212 | |
213 case TOKnew: | |
214 s = parseNew(); | |
215 break; | |
216 | |
217 case TOKdelete: | |
218 s = parseDelete(); | |
219 break; | |
220 | |
221 case TOKeof: | |
222 case TOKrcurly: | |
223 return decldefs; | |
224 | |
225 case TOKstatic: | |
226 nextToken(); | |
227 if (token.value == TOKthis) | |
228 s = parseStaticCtor(); | |
229 else if (token.value == TOKtilde) | |
230 s = parseStaticDtor(); | |
231 else if (token.value == TOKassert) | |
232 s = parseStaticAssert(); | |
233 else if (token.value == TOKif) | |
234 { condition = parseStaticIfCondition(); | |
235 a = parseBlock(); | |
236 aelse = NULL; | |
237 if (token.value == TOKelse) | |
238 { nextToken(); | |
239 aelse = parseBlock(); | |
240 } | |
241 s = new StaticIfDeclaration(condition, a, aelse); | |
242 break; | |
243 } | |
244 else if (token.value == TOKimport) | |
245 { | |
246 s = parseImport(decldefs, 1); | |
247 } | |
248 else | |
249 { stc = STCstatic; | |
250 goto Lstc2; | |
251 } | |
252 break; | |
253 | |
254 case TOKconst: stc = STCconst; goto Lstc; | |
255 case TOKfinal: stc = STCfinal; goto Lstc; | |
256 case TOKauto: stc = STCauto; goto Lstc; | |
257 case TOKscope: stc = STCscope; goto Lstc; | |
258 case TOKoverride: stc = STCoverride; goto Lstc; | |
259 case TOKabstract: stc = STCabstract; goto Lstc; | |
260 case TOKsynchronized: stc = STCsynchronized; goto Lstc; | |
261 case TOKdeprecated: stc = STCdeprecated; goto Lstc; | |
262 | |
263 Lstc: | |
264 nextToken(); | |
265 Lstc2: | |
266 switch (token.value) | |
267 { | |
268 case TOKconst: stc |= STCconst; goto Lstc; | |
269 case TOKfinal: stc |= STCfinal; goto Lstc; | |
270 case TOKauto: stc |= STCauto; goto Lstc; | |
271 case TOKscope: stc |= STCscope; goto Lstc; | |
272 case TOKoverride: stc |= STCoverride; goto Lstc; | |
273 case TOKabstract: stc |= STCabstract; goto Lstc; | |
274 case TOKsynchronized: stc |= STCsynchronized; goto Lstc; | |
275 case TOKdeprecated: stc |= STCdeprecated; goto Lstc; | |
276 //case TOKinvariant: stc |= STCinvariant; goto Lstc; | |
277 default: | |
278 break; | |
279 } | |
280 | |
281 /* Look for auto initializers: | |
282 * storage_class identifier = initializer; | |
283 */ | |
284 if (token.value == TOKidentifier && | |
285 peek(&token)->value == TOKassign) | |
286 { | |
287 while (1) | |
288 { | |
289 Identifier *ident = token.ident; | |
290 nextToken(); | |
291 nextToken(); | |
292 Initializer *init = parseInitializer(); | |
293 VarDeclaration *v = new VarDeclaration(loc, NULL, ident, init); | |
294 v->storage_class = stc; | |
295 s = v; | |
296 if (token.value == TOKsemicolon) | |
297 { | |
298 nextToken(); | |
299 } | |
300 else if (token.value == TOKcomma) | |
301 { | |
302 nextToken(); | |
303 if (token.value == TOKidentifier && | |
304 peek(&token)->value == TOKassign) | |
305 { | |
306 decldefs->push(s); | |
307 addComment(s, comment); | |
308 continue; | |
309 } | |
310 else | |
311 error("Identifier expected following comma"); | |
312 } | |
313 else | |
314 error("semicolon expected following auto declaration, not '%s'", token.toChars()); | |
315 break; | |
316 } | |
317 } | |
318 else | |
319 { a = parseBlock(); | |
320 s = new StorageClassDeclaration(stc, a); | |
321 } | |
322 break; | |
323 | |
324 case TOKextern: | |
325 if (peek(&token)->value != TOKlparen) | |
326 { stc = STCextern; | |
327 goto Lstc; | |
328 } | |
329 { | |
330 enum LINK linksave = linkage; | |
331 linkage = parseLinkage(); | |
332 a = parseBlock(); | |
333 s = new LinkDeclaration(linkage, a); | |
334 linkage = linksave; | |
335 break; | |
336 } | |
337 case TOKprivate: prot = PROTprivate; goto Lprot; | |
338 case TOKpackage: prot = PROTpackage; goto Lprot; | |
339 case TOKprotected: prot = PROTprotected; goto Lprot; | |
340 case TOKpublic: prot = PROTpublic; goto Lprot; | |
341 case TOKexport: prot = PROTexport; goto Lprot; | |
342 | |
343 Lprot: | |
344 nextToken(); | |
345 a = parseBlock(); | |
346 s = new ProtDeclaration(prot, a); | |
347 break; | |
348 | |
349 case TOKalign: | |
350 { unsigned n; | |
351 | |
737
041c1596d217
Removed warnings on ignored aligns. Only do aligment on packed structs, align(1) struct Packed { ... }
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
721
diff
changeset
|
352 // LDC better align code locations |
041c1596d217
Removed warnings on ignored aligns. Only do aligment on packed structs, align(1) struct Packed { ... }
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
721
diff
changeset
|
353 Loc alignloc = loc; |
041c1596d217
Removed warnings on ignored aligns. Only do aligment on packed structs, align(1) struct Packed { ... }
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
721
diff
changeset
|
354 |
336 | 355 s = NULL; |
356 nextToken(); | |
357 if (token.value == TOKlparen) | |
358 { | |
359 nextToken(); | |
360 if (token.value == TOKint32v) | |
361 n = (unsigned)token.uns64value; | |
362 else | |
363 { error("integer expected, not %s", token.toChars()); | |
364 n = 1; | |
365 } | |
366 nextToken(); | |
367 check(TOKrparen); | |
368 } | |
369 else | |
370 n = global.structalign; // default | |
371 | |
372 a = parseBlock(); | |
737
041c1596d217
Removed warnings on ignored aligns. Only do aligment on packed structs, align(1) struct Packed { ... }
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
721
diff
changeset
|
373 s = new AlignDeclaration(alignloc, n, a); |
336 | 374 break; |
375 } | |
376 | |
377 case TOKpragma: | |
378 { Identifier *ident; | |
379 Expressions *args = NULL; | |
380 | |
381 nextToken(); | |
382 check(TOKlparen); | |
383 if (token.value != TOKidentifier) | |
384 { error("pragma(identifier expected"); | |
385 goto Lerror; | |
386 } | |
387 ident = token.ident; | |
388 nextToken(); | |
389 if (token.value == TOKcomma) | |
390 args = parseArguments(); // pragma(identifier, args...) | |
391 else | |
392 check(TOKrparen); // pragma(identifier) | |
393 | |
394 if (token.value == TOKsemicolon) | |
395 a = NULL; | |
396 else | |
397 a = parseBlock(); | |
398 s = new PragmaDeclaration(loc, ident, args, a); | |
399 break; | |
400 } | |
401 | |
402 case TOKdebug: | |
403 nextToken(); | |
404 if (token.value == TOKassign) | |
405 { | |
406 nextToken(); | |
407 if (token.value == TOKidentifier) | |
408 s = new DebugSymbol(loc, token.ident); | |
409 else if (token.value == TOKint32v) | |
410 s = new DebugSymbol(loc, (unsigned)token.uns64value); | |
411 else | |
412 { error("identifier or integer expected, not %s", token.toChars()); | |
413 s = NULL; | |
414 } | |
415 nextToken(); | |
416 if (token.value != TOKsemicolon) | |
417 error("semicolon expected"); | |
418 nextToken(); | |
419 break; | |
420 } | |
421 | |
422 condition = parseDebugCondition(); | |
423 goto Lcondition; | |
424 | |
425 case TOKversion: | |
426 nextToken(); | |
427 if (token.value == TOKassign) | |
428 { | |
429 nextToken(); | |
430 if (token.value == TOKidentifier) | |
431 s = new VersionSymbol(loc, token.ident); | |
432 else if (token.value == TOKint32v) | |
433 s = new VersionSymbol(loc, (unsigned)token.uns64value); | |
434 else | |
435 { error("identifier or integer expected, not %s", token.toChars()); | |
436 s = NULL; | |
437 } | |
438 nextToken(); | |
439 if (token.value != TOKsemicolon) | |
440 error("semicolon expected"); | |
441 nextToken(); | |
442 break; | |
443 } | |
444 condition = parseVersionCondition(); | |
445 goto Lcondition; | |
446 | |
447 Lcondition: | |
448 a = parseBlock(); | |
449 aelse = NULL; | |
450 if (token.value == TOKelse) | |
451 { nextToken(); | |
452 aelse = parseBlock(); | |
453 } | |
454 s = new ConditionalDeclaration(condition, a, aelse); | |
455 break; | |
456 | |
457 case TOKsemicolon: // empty declaration | |
458 nextToken(); | |
459 continue; | |
460 | |
461 default: | |
462 error("Declaration expected, not '%s'",token.toChars()); | |
463 Lerror: | |
464 while (token.value != TOKsemicolon && token.value != TOKeof) | |
465 nextToken(); | |
466 nextToken(); | |
467 s = NULL; | |
468 continue; | |
469 } | |
470 if (s) | |
471 { decldefs->push(s); | |
472 addComment(s, comment); | |
473 } | |
474 } while (!once); | |
475 return decldefs; | |
476 } | |
477 | |
478 | |
479 /******************************************** | |
480 * Parse declarations after an align, protection, or extern decl. | |
481 */ | |
482 | |
483 Array *Parser::parseBlock() | |
484 { | |
485 Array *a = NULL; | |
486 Dsymbol *s; | |
487 | |
488 //printf("parseBlock()\n"); | |
489 switch (token.value) | |
490 { | |
491 case TOKsemicolon: | |
492 error("declaration expected following attribute, not ';'"); | |
493 nextToken(); | |
494 break; | |
495 | |
496 case TOKlcurly: | |
497 nextToken(); | |
498 a = parseDeclDefs(0); | |
499 if (token.value != TOKrcurly) | |
500 { /* { */ | |
501 error("matching '}' expected, not %s", token.toChars()); | |
502 } | |
503 else | |
504 nextToken(); | |
505 break; | |
506 | |
507 case TOKcolon: | |
508 nextToken(); | |
509 #if 0 | |
510 a = NULL; | |
511 #else | |
512 a = parseDeclDefs(0); // grab declarations up to closing curly bracket | |
513 #endif | |
514 break; | |
515 | |
516 default: | |
517 a = parseDeclDefs(1); | |
518 break; | |
519 } | |
520 return a; | |
521 } | |
522 | |
523 /********************************** | |
524 * Parse a static assertion. | |
525 */ | |
526 | |
527 StaticAssert *Parser::parseStaticAssert() | |
528 { | |
529 Loc loc = this->loc; | |
530 Expression *exp; | |
531 Expression *msg = NULL; | |
532 | |
533 //printf("parseStaticAssert()\n"); | |
534 nextToken(); | |
535 check(TOKlparen); | |
536 exp = parseAssignExp(); | |
537 if (token.value == TOKcomma) | |
538 { nextToken(); | |
539 msg = parseAssignExp(); | |
540 } | |
541 check(TOKrparen); | |
542 check(TOKsemicolon); | |
543 return new StaticAssert(loc, exp, msg); | |
544 } | |
545 | |
546 /*********************************** | |
547 * Parse typeof(expression). | |
548 * Current token is on the 'typeof'. | |
549 */ | |
550 | |
551 #if DMDV2 | |
552 TypeQualified *Parser::parseTypeof() | |
553 { TypeQualified *t; | |
554 Loc loc = this->loc; | |
555 | |
556 nextToken(); | |
557 check(TOKlparen); | |
558 if (token.value == TOKreturn) // typeof(return) | |
559 { | |
560 nextToken(); | |
561 t = new TypeReturn(loc); | |
562 } | |
563 else | |
564 { Expression *exp = parseExpression(); // typeof(expression) | |
565 t = new TypeTypeof(loc, exp); | |
566 } | |
567 check(TOKrparen); | |
568 return t; | |
569 } | |
570 #endif | |
571 | |
572 /*********************************** | |
573 * Parse extern (linkage) | |
574 * The parser is on the 'extern' token. | |
575 */ | |
576 | |
577 enum LINK Parser::parseLinkage() | |
578 { | |
579 enum LINK link = LINKdefault; | |
580 nextToken(); | |
581 assert(token.value == TOKlparen); | |
582 nextToken(); | |
583 if (token.value == TOKidentifier) | |
584 { Identifier *id = token.ident; | |
585 | |
586 nextToken(); | |
587 if (id == Id::Windows) | |
588 link = LINKwindows; | |
589 else if (id == Id::Pascal) | |
590 link = LINKpascal; | |
591 else if (id == Id::D) | |
592 link = LINKd; | |
593 else if (id == Id::C) | |
594 { | |
595 link = LINKc; | |
596 if (token.value == TOKplusplus) | |
597 { link = LINKcpp; | |
598 nextToken(); | |
599 } | |
600 } | |
601 else if (id == Id::System) | |
602 { | |
721
51797efb6975
Make extern(System) configure the calling convention on LDC runtime, not when building LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
603 // LDC we configure target at runtime |
51797efb6975
Make extern(System) configure the calling convention on LDC runtime, not when building LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
604 if (global.params.os == OSWindows) |
51797efb6975
Make extern(System) configure the calling convention on LDC runtime, not when building LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
605 link = LINKwindows; |
51797efb6975
Make extern(System) configure the calling convention on LDC runtime, not when building LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
606 else |
51797efb6975
Make extern(System) configure the calling convention on LDC runtime, not when building LDC.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
717
diff
changeset
|
607 link = LINKc; |
336 | 608 } |
609 else | |
610 { | |
611 error("valid linkage identifiers are D, C, C++, Pascal, Windows, System"); | |
612 link = LINKd; | |
613 } | |
614 } | |
615 else | |
616 { | |
617 link = LINKd; // default | |
618 } | |
619 check(TOKrparen); | |
620 return link; | |
621 } | |
622 | |
623 /************************************** | |
624 * Parse a debug conditional | |
625 */ | |
626 | |
627 Condition *Parser::parseDebugCondition() | |
628 { | |
629 Condition *c; | |
630 | |
631 if (token.value == TOKlparen) | |
632 { | |
633 nextToken(); | |
634 unsigned level = 1; | |
635 Identifier *id = NULL; | |
636 | |
637 if (token.value == TOKidentifier) | |
638 id = token.ident; | |
639 else if (token.value == TOKint32v) | |
640 level = (unsigned)token.uns64value; | |
641 else | |
642 error("identifier or integer expected, not %s", token.toChars()); | |
643 nextToken(); | |
644 check(TOKrparen); | |
645 c = new DebugCondition(mod, level, id); | |
646 } | |
647 else | |
648 c = new DebugCondition(mod, 1, NULL); | |
649 return c; | |
650 | |
651 } | |
652 | |
653 /************************************** | |
654 * Parse a version conditional | |
655 */ | |
656 | |
657 Condition *Parser::parseVersionCondition() | |
658 { | |
659 Condition *c; | |
660 unsigned level = 1; | |
661 Identifier *id = NULL; | |
662 | |
663 if (token.value == TOKlparen) | |
664 { | |
665 nextToken(); | |
666 if (token.value == TOKidentifier) | |
667 id = token.ident; | |
668 else if (token.value == TOKint32v) | |
669 level = (unsigned)token.uns64value; | |
670 #if DMDV2 | |
671 /* Allow: | |
672 * version (unittest) | |
673 * even though unittest is a keyword | |
674 */ | |
675 else if (token.value == TOKunittest) | |
676 id = Lexer::idPool(Token::toChars(TOKunittest)); | |
677 #endif | |
678 else | |
679 error("identifier or integer expected, not %s", token.toChars()); | |
680 nextToken(); | |
681 check(TOKrparen); | |
682 | |
683 } | |
684 else | |
685 error("(condition) expected following version"); | |
686 c = new VersionCondition(mod, level, id); | |
687 return c; | |
688 | |
689 } | |
690 | |
691 /*********************************************** | |
692 * static if (expression) | |
693 * body | |
694 * else | |
695 * body | |
696 */ | |
697 | |
698 Condition *Parser::parseStaticIfCondition() | |
699 { Expression *exp; | |
700 Condition *condition; | |
701 Array *aif; | |
702 Array *aelse; | |
703 Loc loc = this->loc; | |
704 | |
705 nextToken(); | |
706 if (token.value == TOKlparen) | |
707 { | |
708 nextToken(); | |
709 exp = parseAssignExp(); | |
710 check(TOKrparen); | |
711 } | |
712 else | |
713 { error("(expression) expected following static if"); | |
714 exp = NULL; | |
715 } | |
716 condition = new StaticIfCondition(loc, exp); | |
717 return condition; | |
718 } | |
719 | |
720 | |
721 /***************************************** | |
722 * Parse a constructor definition: | |
723 * this(arguments) { body } | |
724 * Current token is 'this'. | |
725 */ | |
726 | |
727 CtorDeclaration *Parser::parseCtor() | |
728 { | |
729 CtorDeclaration *f; | |
730 Arguments *arguments; | |
731 int varargs; | |
732 Loc loc = this->loc; | |
733 | |
734 nextToken(); | |
735 arguments = parseParameters(&varargs); | |
736 f = new CtorDeclaration(loc, 0, arguments, varargs); | |
737 parseContracts(f); | |
738 return f; | |
739 } | |
740 | |
741 /***************************************** | |
742 * Parse a destructor definition: | |
743 * ~this() { body } | |
744 * Current token is '~'. | |
745 */ | |
746 | |
747 DtorDeclaration *Parser::parseDtor() | |
748 { | |
749 DtorDeclaration *f; | |
750 Loc loc = this->loc; | |
751 | |
752 nextToken(); | |
753 check(TOKthis); | |
754 check(TOKlparen); | |
755 check(TOKrparen); | |
756 | |
757 f = new DtorDeclaration(loc, 0); | |
758 parseContracts(f); | |
759 return f; | |
760 } | |
761 | |
762 /***************************************** | |
763 * Parse a static constructor definition: | |
764 * static this() { body } | |
765 * Current token is 'this'. | |
766 */ | |
767 | |
768 StaticCtorDeclaration *Parser::parseStaticCtor() | |
769 { | |
770 StaticCtorDeclaration *f; | |
771 Loc loc = this->loc; | |
772 | |
773 nextToken(); | |
774 check(TOKlparen); | |
775 check(TOKrparen); | |
776 | |
777 f = new StaticCtorDeclaration(loc, 0); | |
778 parseContracts(f); | |
779 return f; | |
780 } | |
781 | |
782 /***************************************** | |
783 * Parse a static destructor definition: | |
784 * static ~this() { body } | |
785 * Current token is '~'. | |
786 */ | |
787 | |
788 StaticDtorDeclaration *Parser::parseStaticDtor() | |
789 { | |
790 StaticDtorDeclaration *f; | |
791 Loc loc = this->loc; | |
792 | |
793 nextToken(); | |
794 check(TOKthis); | |
795 check(TOKlparen); | |
796 check(TOKrparen); | |
797 | |
798 f = new StaticDtorDeclaration(loc, 0); | |
799 parseContracts(f); | |
800 return f; | |
801 } | |
802 | |
803 /***************************************** | |
804 * Parse an invariant definition: | |
805 * invariant { body } | |
806 * Current token is 'invariant'. | |
807 */ | |
808 | |
809 InvariantDeclaration *Parser::parseInvariant() | |
810 { | |
811 InvariantDeclaration *f; | |
812 Loc loc = this->loc; | |
813 | |
814 nextToken(); | |
815 if (token.value == TOKlparen) // optional () | |
816 { | |
817 nextToken(); | |
818 check(TOKrparen); | |
819 } | |
820 | |
821 f = new InvariantDeclaration(loc, 0); | |
822 f->fbody = parseStatement(PScurly); | |
823 return f; | |
824 } | |
825 | |
826 /***************************************** | |
827 * Parse a unittest definition: | |
828 * unittest { body } | |
829 * Current token is 'unittest'. | |
830 */ | |
831 | |
832 UnitTestDeclaration *Parser::parseUnitTest() | |
833 { | |
834 UnitTestDeclaration *f; | |
835 Statement *body; | |
836 Loc loc = this->loc; | |
837 | |
838 nextToken(); | |
839 | |
840 body = parseStatement(PScurly); | |
841 | |
842 f = new UnitTestDeclaration(loc, this->loc); | |
843 f->fbody = body; | |
844 return f; | |
845 } | |
846 | |
847 /***************************************** | |
848 * Parse a new definition: | |
849 * new(arguments) { body } | |
850 * Current token is 'new'. | |
851 */ | |
852 | |
853 NewDeclaration *Parser::parseNew() | |
854 { | |
855 NewDeclaration *f; | |
856 Arguments *arguments; | |
857 int varargs; | |
858 Loc loc = this->loc; | |
859 | |
860 nextToken(); | |
861 arguments = parseParameters(&varargs); | |
862 f = new NewDeclaration(loc, 0, arguments, varargs); | |
863 parseContracts(f); | |
864 return f; | |
865 } | |
866 | |
867 /***************************************** | |
868 * Parse a delete definition: | |
869 * delete(arguments) { body } | |
870 * Current token is 'delete'. | |
871 */ | |
872 | |
873 DeleteDeclaration *Parser::parseDelete() | |
874 { | |
875 DeleteDeclaration *f; | |
876 Arguments *arguments; | |
877 int varargs; | |
878 Loc loc = this->loc; | |
879 | |
880 nextToken(); | |
881 arguments = parseParameters(&varargs); | |
882 if (varargs) | |
883 error("... not allowed in delete function parameter list"); | |
884 f = new DeleteDeclaration(loc, 0, arguments); | |
885 parseContracts(f); | |
886 return f; | |
887 } | |
888 | |
889 /********************************************** | |
890 * Parse parameter list. | |
891 */ | |
892 | |
893 Arguments *Parser::parseParameters(int *pvarargs) | |
894 { | |
895 Arguments *arguments = new Arguments(); | |
896 int varargs = 0; | |
897 int hasdefault = 0; | |
898 | |
899 check(TOKlparen); | |
900 while (1) | |
901 { Type *tb; | |
902 Identifier *ai = NULL; | |
903 Type *at; | |
904 Argument *a; | |
905 unsigned storageClass; | |
906 Expression *ae; | |
907 | |
908 storageClass = STCin; // parameter is "in" by default | |
909 switch (token.value) | |
910 { | |
911 case TOKrparen: | |
912 break; | |
913 | |
914 case TOKdotdotdot: | |
915 varargs = 1; | |
916 nextToken(); | |
917 break; | |
918 | |
919 case TOKin: | |
920 storageClass = STCin; | |
921 nextToken(); | |
922 goto L1; | |
923 | |
924 case TOKout: | |
925 storageClass = STCout; | |
926 nextToken(); | |
927 goto L1; | |
928 | |
929 case TOKinout: | |
930 case TOKref: | |
931 storageClass = STCref; | |
932 nextToken(); | |
933 goto L1; | |
934 | |
935 case TOKlazy: | |
936 storageClass = STClazy; | |
937 nextToken(); | |
938 goto L1; | |
939 | |
940 default: | |
941 L1: | |
942 tb = parseBasicType(); | |
943 at = parseDeclarator(tb, &ai); | |
944 ae = NULL; | |
945 if (token.value == TOKassign) // = defaultArg | |
946 { nextToken(); | |
947 ae = parseAssignExp(); | |
948 hasdefault = 1; | |
949 } | |
950 else | |
951 { if (hasdefault) | |
952 error("default argument expected for %s", | |
953 ai ? ai->toChars() : at->toChars()); | |
954 } | |
955 if (token.value == TOKdotdotdot) | |
956 { /* This is: | |
957 * at ai ... | |
958 */ | |
959 | |
960 if (storageClass & (STCout | STCref)) | |
961 error("variadic argument cannot be out or ref"); | |
962 varargs = 2; | |
963 a = new Argument(storageClass, at, ai, ae); | |
964 arguments->push(a); | |
965 nextToken(); | |
966 break; | |
967 } | |
968 a = new Argument(storageClass, at, ai, ae); | |
969 arguments->push(a); | |
970 if (token.value == TOKcomma) | |
971 { nextToken(); | |
972 continue; | |
973 } | |
974 break; | |
975 } | |
976 break; | |
977 } | |
978 check(TOKrparen); | |
979 *pvarargs = varargs; | |
980 return arguments; | |
981 } | |
982 | |
983 | |
984 /************************************* | |
985 */ | |
986 | |
987 EnumDeclaration *Parser::parseEnum() | |
988 { EnumDeclaration *e; | |
989 Identifier *id; | |
990 Type *t; | |
991 Loc loc = this->loc; | |
992 | |
993 //printf("Parser::parseEnum()\n"); | |
994 nextToken(); | |
995 if (token.value == TOKidentifier) | |
996 { id = token.ident; | |
997 nextToken(); | |
998 } | |
999 else | |
1000 id = NULL; | |
1001 | |
1002 if (token.value == TOKcolon) | |
1003 { | |
1004 nextToken(); | |
1005 t = parseBasicType(); | |
1006 } | |
1007 else | |
1008 t = NULL; | |
1009 | |
1010 e = new EnumDeclaration(loc, id, t); | |
1011 if (token.value == TOKsemicolon && id) | |
1012 nextToken(); | |
1013 else if (token.value == TOKlcurly) | |
1014 { | |
1015 //printf("enum definition\n"); | |
1016 e->members = new Array(); | |
1017 nextToken(); | |
1018 unsigned char *comment = token.blockComment; | |
1019 while (token.value != TOKrcurly) | |
1020 { | |
1021 if (token.value == TOKidentifier) | |
1022 { EnumMember *em; | |
1023 Expression *value; | |
1024 Identifier *ident; | |
1025 | |
1026 loc = this->loc; | |
1027 ident = token.ident; | |
1028 value = NULL; | |
1029 nextToken(); | |
1030 if (token.value == TOKassign) | |
1031 { | |
1032 nextToken(); | |
1033 value = parseAssignExp(); | |
1034 } | |
1035 em = new EnumMember(loc, ident, value); | |
1036 e->members->push(em); | |
1037 if (token.value == TOKrcurly) | |
1038 ; | |
1039 else | |
1040 { addComment(em, comment); | |
1041 comment = NULL; | |
1042 check(TOKcomma); | |
1043 } | |
1044 addComment(em, comment); | |
1045 comment = token.blockComment; | |
1046 } | |
1047 else | |
1048 { error("enum member expected"); | |
1049 nextToken(); | |
1050 } | |
1051 } | |
1052 nextToken(); | |
1053 } | |
1054 else | |
1055 error("enum declaration is invalid"); | |
1056 | |
1057 //printf("-parseEnum() %s\n", e->toChars()); | |
1058 return e; | |
1059 } | |
1060 | |
1061 Dsymbol *Parser::parseAggregate() | |
1062 { AggregateDeclaration *a = NULL; | |
1063 int anon = 0; | |
1064 enum TOK tok; | |
1065 Identifier *id; | |
1066 TemplateParameters *tpl = NULL; | |
1067 | |
1068 //printf("Parser::parseAggregate()\n"); | |
1069 tok = token.value; | |
1070 nextToken(); | |
1071 if (token.value != TOKidentifier) | |
1072 { id = NULL; | |
1073 } | |
1074 else | |
1075 { id = token.ident; | |
1076 nextToken(); | |
1077 | |
1078 if (token.value == TOKlparen) | |
1079 { // Class template declaration. | |
1080 | |
1081 // Gather template parameter list | |
1082 tpl = parseTemplateParameterList(); | |
1083 } | |
1084 } | |
1085 | |
1086 Loc loc = this->loc; | |
1087 switch (tok) | |
1088 { case TOKclass: | |
1089 case TOKinterface: | |
1090 { | |
1091 if (!id) | |
1092 error("anonymous classes not allowed"); | |
1093 | |
1094 // Collect base class(es) | |
1095 BaseClasses *baseclasses = NULL; | |
1096 if (token.value == TOKcolon) | |
1097 { | |
1098 nextToken(); | |
1099 baseclasses = parseBaseClasses(); | |
1100 | |
1101 if (token.value != TOKlcurly) | |
1102 error("members expected"); | |
1103 } | |
1104 | |
1105 if (tok == TOKclass) | |
1106 a = new ClassDeclaration(loc, id, baseclasses); | |
1107 else | |
1108 a = new InterfaceDeclaration(loc, id, baseclasses); | |
1109 break; | |
1110 } | |
1111 | |
1112 case TOKstruct: | |
1113 if (id) | |
1114 a = new StructDeclaration(loc, id); | |
1115 else | |
1116 anon = 1; | |
1117 break; | |
1118 | |
1119 case TOKunion: | |
1120 if (id) | |
1121 a = new UnionDeclaration(loc, id); | |
1122 else | |
1123 anon = 2; | |
1124 break; | |
1125 | |
1126 default: | |
1127 assert(0); | |
1128 break; | |
1129 } | |
1130 if (a && token.value == TOKsemicolon) | |
1131 { nextToken(); | |
1132 } | |
1133 else if (token.value == TOKlcurly) | |
1134 { | |
1135 //printf("aggregate definition\n"); | |
1136 nextToken(); | |
1137 Array *decl = parseDeclDefs(0); | |
1138 if (token.value != TOKrcurly) | |
1139 error("} expected following member declarations in aggregate"); | |
1140 nextToken(); | |
1141 if (anon) | |
1142 { | |
1143 /* Anonymous structs/unions are more like attributes. | |
1144 */ | |
1145 return new AnonDeclaration(loc, anon - 1, decl); | |
1146 } | |
1147 else | |
1148 a->members = decl; | |
1149 } | |
1150 else | |
1151 { | |
1152 error("{ } expected following aggregate declaration"); | |
1153 a = new StructDeclaration(loc, NULL); | |
1154 } | |
1155 | |
1156 if (tpl) | |
1157 { Array *decldefs; | |
1158 TemplateDeclaration *tempdecl; | |
1159 | |
1160 // Wrap a template around the aggregate declaration | |
1161 decldefs = new Array(); | |
1162 decldefs->push(a); | |
1163 tempdecl = new TemplateDeclaration(loc, id, tpl, decldefs); | |
1164 return tempdecl; | |
1165 } | |
1166 | |
1167 return a; | |
1168 } | |
1169 | |
1170 /******************************************* | |
1171 */ | |
1172 | |
1173 BaseClasses *Parser::parseBaseClasses() | |
1174 { | |
1175 enum PROT protection = PROTpublic; | |
1176 BaseClasses *baseclasses = new BaseClasses(); | |
1177 | |
1178 for (; 1; nextToken()) | |
1179 { | |
1180 switch (token.value) | |
1181 { | |
1182 case TOKidentifier: | |
1183 break; | |
1184 case TOKprivate: | |
1185 protection = PROTprivate; | |
1186 continue; | |
1187 case TOKpackage: | |
1188 protection = PROTpackage; | |
1189 continue; | |
1190 case TOKprotected: | |
1191 protection = PROTprotected; | |
1192 continue; | |
1193 case TOKpublic: | |
1194 protection = PROTpublic; | |
1195 continue; | |
1196 default: | |
1197 error("base classes expected instead of %s", token.toChars()); | |
1198 return NULL; | |
1199 } | |
1200 BaseClass *b = new BaseClass(parseBasicType(), protection); | |
1201 baseclasses->push(b); | |
1202 if (token.value != TOKcomma) | |
1203 break; | |
1204 protection = PROTpublic; | |
1205 } | |
1206 return baseclasses; | |
1207 } | |
1208 | |
1209 /************************************** | |
1210 * Parse constraint. | |
1211 * Constraint is of the form: | |
1212 * if ( ConstraintExpression ) | |
1213 */ | |
1214 | |
1215 #if DMDV2 | |
1216 Expression *Parser::parseConstraint() | |
1217 { Expression *e = NULL; | |
1218 | |
1219 if (token.value == TOKif) | |
1220 { | |
1221 nextToken(); // skip over 'if' | |
1222 check(TOKlparen); | |
1223 e = parseExpression(); | |
1224 check(TOKrparen); | |
1225 } | |
1226 return e; | |
1227 } | |
1228 #endif | |
1229 | |
1230 /************************************** | |
1231 * Parse a TemplateDeclaration. | |
1232 */ | |
1233 | |
1234 TemplateDeclaration *Parser::parseTemplateDeclaration() | |
1235 { | |
1236 TemplateDeclaration *tempdecl; | |
1237 Identifier *id; | |
1238 TemplateParameters *tpl; | |
1239 Array *decldefs; | |
1240 Loc loc = this->loc; | |
1241 | |
1242 nextToken(); | |
1243 if (token.value != TOKidentifier) | |
1244 { error("TemplateIdentifier expected following template"); | |
1245 goto Lerr; | |
1246 } | |
1247 id = token.ident; | |
1248 nextToken(); | |
1249 tpl = parseTemplateParameterList(); | |
1250 if (!tpl) | |
1251 goto Lerr; | |
1252 | |
1253 if (token.value != TOKlcurly) | |
1254 { error("members of template declaration expected"); | |
1255 goto Lerr; | |
1256 } | |
1257 else | |
1258 { | |
1259 nextToken(); | |
1260 decldefs = parseDeclDefs(0); | |
1261 if (token.value != TOKrcurly) | |
1262 { error("template member expected"); | |
1263 goto Lerr; | |
1264 } | |
1265 nextToken(); | |
1266 } | |
1267 | |
1268 tempdecl = new TemplateDeclaration(loc, id, tpl, decldefs); | |
1269 return tempdecl; | |
1270 | |
1271 Lerr: | |
1272 return NULL; | |
1273 } | |
1274 | |
1275 /****************************************** | |
1276 * Parse template parameter list. | |
1277 */ | |
1278 | |
1279 TemplateParameters *Parser::parseTemplateParameterList() | |
1280 { | |
1281 TemplateParameters *tpl = new TemplateParameters(); | |
1282 | |
1283 if (token.value != TOKlparen) | |
1284 { error("parenthesized TemplateParameterList expected following TemplateIdentifier"); | |
1285 goto Lerr; | |
1286 } | |
1287 nextToken(); | |
1288 | |
1289 // Get array of TemplateParameters | |
1290 if (token.value != TOKrparen) | |
1291 { int isvariadic = 0; | |
1292 | |
1293 while (1) | |
1294 { TemplateParameter *tp; | |
1295 Identifier *tp_ident = NULL; | |
1296 Type *tp_spectype = NULL; | |
1297 Type *tp_valtype = NULL; | |
1298 Type *tp_defaulttype = NULL; | |
1299 Expression *tp_specvalue = NULL; | |
1300 Expression *tp_defaultvalue = NULL; | |
1301 Token *t; | |
1302 | |
1303 // Get TemplateParameter | |
1304 | |
1305 // First, look ahead to see if it is a TypeParameter or a ValueParameter | |
1306 t = peek(&token); | |
1307 if (token.value == TOKalias) | |
1308 { // AliasParameter | |
1309 nextToken(); | |
1310 if (token.value != TOKidentifier) | |
1311 { error("Identifier expected for template parameter"); | |
1312 goto Lerr; | |
1313 } | |
1314 tp_ident = token.ident; | |
1315 nextToken(); | |
1316 if (token.value == TOKcolon) // : Type | |
1317 { | |
1318 nextToken(); | |
1319 tp_spectype = parseBasicType(); | |
1320 tp_spectype = parseDeclarator(tp_spectype, NULL); | |
1321 } | |
1322 if (token.value == TOKassign) // = Type | |
1323 { | |
1324 nextToken(); | |
1325 tp_defaulttype = parseBasicType(); | |
1326 tp_defaulttype = parseDeclarator(tp_defaulttype, NULL); | |
1327 } | |
1328 tp = new TemplateAliasParameter(loc, tp_ident, tp_spectype, tp_defaulttype); | |
1329 } | |
1330 else if (t->value == TOKcolon || t->value == TOKassign || | |
1331 t->value == TOKcomma || t->value == TOKrparen) | |
1332 { // TypeParameter | |
1333 if (token.value != TOKidentifier) | |
1334 { error("Identifier expected for template parameter"); | |
1335 goto Lerr; | |
1336 } | |
1337 tp_ident = token.ident; | |
1338 nextToken(); | |
1339 if (token.value == TOKcolon) // : Type | |
1340 { | |
1341 nextToken(); | |
1342 tp_spectype = parseBasicType(); | |
1343 tp_spectype = parseDeclarator(tp_spectype, NULL); | |
1344 } | |
1345 if (token.value == TOKassign) // = Type | |
1346 { | |
1347 nextToken(); | |
1348 tp_defaulttype = parseBasicType(); | |
1349 tp_defaulttype = parseDeclarator(tp_defaulttype, NULL); | |
1350 } | |
1351 tp = new TemplateTypeParameter(loc, tp_ident, tp_spectype, tp_defaulttype); | |
1352 } | |
1353 else if (token.value == TOKidentifier && t->value == TOKdotdotdot) | |
1354 { // ident... | |
1355 if (isvariadic) | |
1356 error("variadic template parameter must be last"); | |
1357 isvariadic = 1; | |
1358 tp_ident = token.ident; | |
1359 nextToken(); | |
1360 nextToken(); | |
1361 tp = new TemplateTupleParameter(loc, tp_ident); | |
1362 } | |
1363 #if DMDV2 | |
1364 else if (token.value == TOKthis) | |
1365 { // ThisParameter | |
1366 nextToken(); | |
1367 if (token.value != TOKidentifier) | |
1368 { error("identifier expected for template this parameter"); | |
1369 goto Lerr; | |
1370 } | |
1371 tp_ident = token.ident; | |
1372 nextToken(); | |
1373 if (token.value == TOKcolon) // : Type | |
1374 { | |
1375 nextToken(); | |
1376 tp_spectype = parseType(); | |
1377 } | |
1378 if (token.value == TOKassign) // = Type | |
1379 { | |
1380 nextToken(); | |
1381 tp_defaulttype = parseType(); | |
1382 } | |
1383 tp = new TemplateThisParameter(loc, tp_ident, tp_spectype, tp_defaulttype); | |
1384 } | |
1385 #endif | |
1386 else | |
1387 { // ValueParameter | |
1388 tp_valtype = parseBasicType(); | |
1389 tp_valtype = parseDeclarator(tp_valtype, &tp_ident); | |
1390 if (!tp_ident) | |
1391 { | |
1392 error("identifier expected for template value parameter"); | |
1393 tp_ident = new Identifier("error", TOKidentifier); | |
1394 } | |
1395 if (token.value == TOKcolon) // : CondExpression | |
1396 { | |
1397 nextToken(); | |
1398 tp_specvalue = parseCondExp(); | |
1399 } | |
1400 if (token.value == TOKassign) // = CondExpression | |
1401 { | |
1402 nextToken(); | |
1403 tp_defaultvalue = parseCondExp(); | |
1404 } | |
1405 tp = new TemplateValueParameter(loc, tp_ident, tp_valtype, tp_specvalue, tp_defaultvalue); | |
1406 } | |
1407 tpl->push(tp); | |
1408 if (token.value != TOKcomma) | |
1409 break; | |
1410 nextToken(); | |
1411 } | |
1412 } | |
1413 check(TOKrparen); | |
1414 Lerr: | |
1415 return tpl; | |
1416 } | |
1417 | |
1418 /****************************************** | |
1419 * Parse template mixin. | |
1420 * mixin Foo; | |
1421 * mixin Foo!(args); | |
1422 * mixin a.b.c!(args).Foo!(args); | |
1423 * mixin Foo!(args) identifier; | |
1424 * mixin typeof(expr).identifier!(args); | |
1425 */ | |
1426 | |
1427 Dsymbol *Parser::parseMixin() | |
1428 { | |
1429 TemplateMixin *tm; | |
1430 Identifier *id; | |
1431 Type *tqual; | |
1432 Objects *tiargs; | |
1433 Array *idents; | |
1434 | |
1435 //printf("parseMixin()\n"); | |
1436 nextToken(); | |
1437 tqual = NULL; | |
1438 if (token.value == TOKdot) | |
1439 { | |
1440 id = Id::empty; | |
1441 } | |
1442 else | |
1443 { | |
1444 if (token.value == TOKtypeof) | |
1445 { Expression *exp; | |
1446 | |
1447 nextToken(); | |
1448 check(TOKlparen); | |
1449 exp = parseExpression(); | |
1450 check(TOKrparen); | |
1451 tqual = new TypeTypeof(loc, exp); | |
1452 check(TOKdot); | |
1453 } | |
1454 if (token.value != TOKidentifier) | |
1455 { | |
1456 error("identifier expected, not %s", token.toChars()); | |
1457 id = Id::empty; | |
1458 } | |
1459 else | |
1460 id = token.ident; | |
1461 nextToken(); | |
1462 } | |
1463 | |
1464 idents = new Array(); | |
1465 while (1) | |
1466 { | |
1467 tiargs = NULL; | |
1468 if (token.value == TOKnot) | |
1469 { | |
1470 nextToken(); | |
1471 tiargs = parseTemplateArgumentList(); | |
1472 } | |
1473 | |
1474 if (token.value != TOKdot) | |
1475 break; | |
1476 | |
1477 if (tiargs) | |
1478 { TemplateInstance *tempinst = new TemplateInstance(loc, id); | |
1479 tempinst->tiargs = tiargs; | |
1480 id = (Identifier *)tempinst; | |
1481 tiargs = NULL; | |
1482 } | |
1483 idents->push(id); | |
1484 | |
1485 nextToken(); | |
1486 if (token.value != TOKidentifier) | |
1487 { error("identifier expected following '.' instead of '%s'", token.toChars()); | |
1488 break; | |
1489 } | |
1490 id = token.ident; | |
1491 nextToken(); | |
1492 } | |
1493 idents->push(id); | |
1494 | |
1495 if (token.value == TOKidentifier) | |
1496 { | |
1497 id = token.ident; | |
1498 nextToken(); | |
1499 } | |
1500 else | |
1501 id = NULL; | |
1502 | |
1503 tm = new TemplateMixin(loc, id, tqual, idents, tiargs); | |
1504 if (token.value != TOKsemicolon) | |
1505 error("';' expected after mixin"); | |
1506 nextToken(); | |
1507 | |
1508 return tm; | |
1509 } | |
1510 | |
1511 /****************************************** | |
1512 * Parse template argument list. | |
1513 * Input: | |
1514 * current token is opening '(' | |
1515 * Output: | |
1516 * current token is one after closing ')' | |
1517 */ | |
1518 | |
1519 Objects *Parser::parseTemplateArgumentList() | |
1520 { | |
1521 //printf("Parser::parseTemplateArgumentList()\n"); | |
1522 Objects *tiargs = new Objects(); | |
1523 if (token.value != TOKlparen) | |
1524 { error("!(TemplateArgumentList) expected following TemplateIdentifier"); | |
1525 return tiargs; | |
1526 } | |
1527 nextToken(); | |
1528 | |
1529 // Get TemplateArgumentList | |
1530 if (token.value != TOKrparen) | |
1531 { | |
1532 while (1) | |
1533 { | |
1534 // See if it is an Expression or a Type | |
1535 if (isDeclaration(&token, 0, TOKreserved, NULL)) | |
1536 { // Type | |
1537 Type *ta; | |
1538 | |
1539 // Get TemplateArgument | |
1540 ta = parseBasicType(); | |
1541 ta = parseDeclarator(ta, NULL); | |
1542 tiargs->push(ta); | |
1543 } | |
1544 else | |
1545 { // Expression | |
1546 Expression *ea; | |
1547 | |
1548 ea = parseAssignExp(); | |
1549 tiargs->push(ea); | |
1550 } | |
1551 if (token.value != TOKcomma) | |
1552 break; | |
1553 nextToken(); | |
1554 } | |
1555 } | |
1556 check(TOKrparen, "template argument list"); | |
1557 return tiargs; | |
1558 } | |
1559 | |
1560 Import *Parser::parseImport(Array *decldefs, int isstatic) | |
1561 { Import *s; | |
1562 Identifier *id; | |
1563 Identifier *aliasid = NULL; | |
1564 Array *a; | |
1565 Loc loc; | |
1566 | |
1567 //printf("Parser::parseImport()\n"); | |
1568 do | |
1569 { | |
1570 L1: | |
1571 nextToken(); | |
1572 if (token.value != TOKidentifier) | |
1573 { error("Identifier expected following import"); | |
1574 break; | |
1575 } | |
1576 | |
1577 loc = this->loc; | |
1578 a = NULL; | |
1579 id = token.ident; | |
1580 nextToken(); | |
1581 if (!aliasid && token.value == TOKassign) | |
1582 { | |
1583 aliasid = id; | |
1584 goto L1; | |
1585 } | |
1586 while (token.value == TOKdot) | |
1587 { | |
1588 if (!a) | |
1589 a = new Array(); | |
1590 a->push(id); | |
1591 nextToken(); | |
1592 if (token.value != TOKidentifier) | |
1593 { error("Identifier expected following package"); | |
1594 break; | |
1595 } | |
1596 id = token.ident; | |
1597 nextToken(); | |
1598 } | |
1599 | |
1600 s = new Import(loc, a, token.ident, aliasid, isstatic); | |
1601 decldefs->push(s); | |
1602 | |
1603 /* Look for | |
1604 * : alias=name, alias=name; | |
1605 * syntax. | |
1606 */ | |
1607 if (token.value == TOKcolon) | |
1608 { | |
1609 do | |
1610 { Identifier *name; | |
1611 Identifier *alias; | |
1612 | |
1613 nextToken(); | |
1614 if (token.value != TOKidentifier) | |
1615 { error("Identifier expected following :"); | |
1616 break; | |
1617 } | |
1618 alias = token.ident; | |
1619 nextToken(); | |
1620 if (token.value == TOKassign) | |
1621 { | |
1622 nextToken(); | |
1623 if (token.value != TOKidentifier) | |
1624 { error("Identifier expected following %s=", alias->toChars()); | |
1625 break; | |
1626 } | |
1627 name = token.ident; | |
1628 nextToken(); | |
1629 } | |
1630 else | |
1631 { name = alias; | |
1632 alias = NULL; | |
1633 } | |
1634 s->addAlias(name, alias); | |
1635 } while (token.value == TOKcomma); | |
1636 break; // no comma-separated imports of this form | |
1637 } | |
1638 | |
1639 aliasid = NULL; | |
1640 } while (token.value == TOKcomma); | |
1641 | |
1642 if (token.value == TOKsemicolon) | |
1643 nextToken(); | |
1644 else | |
1645 { | |
1646 error("';' expected"); | |
1647 nextToken(); | |
1648 } | |
1649 | |
1650 return NULL; | |
1651 } | |
1652 | |
1653 Type *Parser::parseBasicType() | |
1654 { Type *t; | |
1655 Identifier *id; | |
1656 TypeQualified *tid; | |
1657 TemplateInstance *tempinst; | |
1658 | |
1659 //printf("parseBasicType()\n"); | |
1660 switch (token.value) | |
1661 { | |
1662 CASE_BASIC_TYPES_X(t): | |
1663 nextToken(); | |
1664 break; | |
1665 | |
1666 case TOKidentifier: | |
1667 id = token.ident; | |
1668 nextToken(); | |
1669 if (token.value == TOKnot) | |
1670 { | |
1671 nextToken(); | |
1672 tempinst = new TemplateInstance(loc, id); | |
1673 tempinst->tiargs = parseTemplateArgumentList(); | |
1674 tid = new TypeInstance(loc, tempinst); | |
1675 goto Lident2; | |
1676 } | |
1677 Lident: | |
1678 tid = new TypeIdentifier(loc, id); | |
1679 Lident2: | |
1680 while (token.value == TOKdot) | |
1681 { nextToken(); | |
1682 if (token.value != TOKidentifier) | |
1683 { error("identifier expected following '.' instead of '%s'", token.toChars()); | |
1684 break; | |
1685 } | |
1686 id = token.ident; | |
1687 nextToken(); | |
1688 if (token.value == TOKnot) | |
1689 { | |
1690 nextToken(); | |
1691 tempinst = new TemplateInstance(loc, id); | |
1692 tempinst->tiargs = parseTemplateArgumentList(); | |
1693 tid->addIdent((Identifier *)tempinst); | |
1694 } | |
1695 else | |
1696 tid->addIdent(id); | |
1697 } | |
1698 t = tid; | |
1699 break; | |
1700 | |
1701 case TOKdot: | |
1702 // Leading . as in .foo | |
1703 id = Id::empty; | |
1704 goto Lident; | |
1705 | |
1706 case TOKtypeof: | |
1707 { Expression *exp; | |
1708 | |
1709 nextToken(); | |
1710 check(TOKlparen); | |
1711 exp = parseExpression(); | |
1712 check(TOKrparen); | |
1713 tid = new TypeTypeof(loc, exp); | |
1714 goto Lident2; | |
1715 } | |
1716 | |
1717 default: | |
1718 error("basic type expected, not %s", token.toChars()); | |
1719 t = Type::tint32; | |
1720 break; | |
1721 } | |
1722 return t; | |
1723 } | |
1724 | |
1725 /****************************************** | |
1726 * Parse things that follow the initial type t. | |
1727 * t * | |
1728 * t [] | |
1729 * t [type] | |
1730 * t [expression] | |
1731 * t [expression .. expression] | |
1732 * t function | |
1733 * t delegate | |
1734 */ | |
1735 | |
1736 Type *Parser::parseBasicType2(Type *t) | |
1737 { | |
1738 Type *ts; | |
1739 Type *ta; | |
1740 | |
1741 //printf("parseBasicType2()\n"); | |
1742 while (1) | |
1743 { | |
1744 switch (token.value) | |
1745 { | |
1746 case TOKmul: | |
1747 t = new TypePointer(t); | |
1748 nextToken(); | |
1749 continue; | |
1750 | |
1751 case TOKlbracket: | |
1752 #if LTORARRAYDECL | |
1753 // Handle []. Make sure things like | |
1754 // int[3][1] a; | |
1755 // is (array[1] of array[3] of int) | |
1756 nextToken(); | |
1757 if (token.value == TOKrbracket) | |
1758 { | |
1759 t = new TypeDArray(t); // [] | |
1760 nextToken(); | |
1761 } | |
1762 else if (isDeclaration(&token, 0, TOKrbracket, NULL)) | |
1763 { // It's an associative array declaration | |
1764 Type *index; | |
1765 | |
1766 //printf("it's an associative array\n"); | |
1767 index = parseBasicType(); | |
1768 index = parseDeclarator(index, NULL); // [ type ] | |
1769 t = new TypeAArray(t, index); | |
1770 check(TOKrbracket); | |
1771 } | |
1772 else | |
1773 { | |
1774 //printf("it's [expression]\n"); | |
1775 inBrackets++; | |
1776 Expression *e = parseExpression(); // [ expression ] | |
1777 if (token.value == TOKslice) | |
1778 { Expression *e2; | |
1779 | |
1780 nextToken(); | |
1781 e2 = parseExpression(); // [ exp .. exp ] | |
1782 t = new TypeSlice(t, e, e2); | |
1783 } | |
1784 else | |
1785 t = new TypeSArray(t,e); | |
1786 inBrackets--; | |
1787 check(TOKrbracket); | |
1788 } | |
1789 continue; | |
1790 #else | |
1791 // Handle []. Make sure things like | |
1792 // int[3][1] a; | |
1793 // is (array[3] of array[1] of int) | |
1794 ts = t; | |
1795 while (token.value == TOKlbracket) | |
1796 { | |
1797 nextToken(); | |
1798 if (token.value == TOKrbracket) | |
1799 { | |
1800 ta = new TypeDArray(t); // [] | |
1801 nextToken(); | |
1802 } | |
1803 else if (isDeclaration(&token, 0, TOKrbracket, NULL)) | |
1804 { // It's an associative array declaration | |
1805 Type *index; | |
1806 | |
1807 //printf("it's an associative array\n"); | |
1808 index = parseBasicType(); | |
1809 index = parseDeclarator(index, NULL); // [ type ] | |
1810 check(TOKrbracket); | |
1811 ta = new TypeAArray(t, index); | |
1812 } | |
1813 else | |
1814 { | |
1815 //printf("it's [expression]\n"); | |
1816 Expression *e = parseExpression(); // [ expression ] | |
1817 ta = new TypeSArray(t,e); | |
1818 check(TOKrbracket); | |
1819 } | |
1820 Type **pt; | |
1821 for (pt = &ts; *pt != t; pt = &(*pt)->next) | |
1822 ; | |
1823 *pt = ta; | |
1824 } | |
1825 t = ts; | |
1826 continue; | |
1827 #endif | |
1828 | |
1829 case TOKdelegate: | |
1830 case TOKfunction: | |
1831 { // Handle delegate declaration: | |
1832 // t delegate(parameter list) | |
1833 // t function(parameter list) | |
1834 Arguments *arguments; | |
1835 int varargs; | |
1836 enum TOK save = token.value; | |
1837 | |
1838 nextToken(); | |
1839 arguments = parseParameters(&varargs); | |
1840 t = new TypeFunction(arguments, t, varargs, linkage); | |
1841 if (save == TOKdelegate) | |
1842 t = new TypeDelegate(t); | |
1843 else | |
1844 t = new TypePointer(t); // pointer to function | |
1845 continue; | |
1846 } | |
1847 | |
1848 default: | |
1849 ts = t; | |
1850 break; | |
1851 } | |
1852 break; | |
1853 } | |
1854 return ts; | |
1855 } | |
1856 | |
1857 Type *Parser::parseDeclarator(Type *t, Identifier **pident, TemplateParameters **tpl) | |
1858 { Type *ts; | |
1859 Type *ta; | |
1860 | |
1861 //printf("parseDeclarator(tpl = %p)\n", tpl); | |
1862 t = parseBasicType2(t); | |
1863 | |
1864 switch (token.value) | |
1865 { | |
1866 | |
1867 case TOKidentifier: | |
1868 if (pident) | |
1869 *pident = token.ident; | |
1870 else | |
1871 error("unexpected identifer '%s' in declarator", token.ident->toChars()); | |
1872 ts = t; | |
1873 nextToken(); | |
1874 break; | |
1875 | |
1876 case TOKlparen: | |
1877 /* Parse things with parentheses around the identifier, like: | |
1878 * int (*ident[3])[] | |
1879 * although the D style would be: | |
1880 * int[]*[3] ident | |
1881 */ | |
1882 nextToken(); | |
1883 ts = parseDeclarator(t, pident); | |
1884 check(TOKrparen); | |
1885 break; | |
1886 | |
1887 default: | |
1888 ts = t; | |
1889 break; | |
1890 } | |
1891 | |
1892 while (1) | |
1893 { | |
1894 switch (token.value) | |
1895 { | |
1896 #if CARRAYDECL | |
1897 /* Support C style array syntax: | |
1898 * int ident[] | |
1899 * as opposed to D-style: | |
1900 * int[] ident | |
1901 */ | |
1902 case TOKlbracket: | |
1903 { // This is the old C-style post [] syntax. | |
1904 nextToken(); | |
1905 if (token.value == TOKrbracket) | |
1906 { // It's a dynamic array | |
1907 ta = new TypeDArray(t); // [] | |
1908 nextToken(); | |
1909 } | |
1910 else if (isDeclaration(&token, 0, TOKrbracket, NULL)) | |
1911 { // It's an associative array declaration | |
1912 Type *index; | |
1913 | |
1914 //printf("it's an associative array\n"); | |
1915 index = parseBasicType(); | |
1916 index = parseDeclarator(index, NULL); // [ type ] | |
1917 check(TOKrbracket); | |
1918 ta = new TypeAArray(t, index); | |
1919 } | |
1920 else | |
1921 { | |
1922 //printf("it's [expression]\n"); | |
1923 Expression *e = parseExpression(); // [ expression ] | |
1924 ta = new TypeSArray(t, e); | |
1925 check(TOKrbracket); | |
1926 } | |
1927 /* Insert ta into | |
1928 * ts -> ... -> t | |
1929 * so that | |
1930 * ts -> ... -> ta -> t | |
1931 */ | |
1932 Type **pt; | |
1933 for (pt = &ts; *pt != t; pt = &(*pt)->next) | |
1934 ; | |
1935 *pt = ta; | |
1936 continue; | |
1937 } | |
1938 #endif | |
1939 case TOKlparen: | |
1940 { Arguments *arguments; | |
1941 int varargs; | |
1942 | |
1943 if (tpl) | |
1944 { | |
1945 /* Look ahead to see if this is (...)(...), | |
1946 * i.e. a function template declaration | |
1947 */ | |
1948 if (peekPastParen(&token)->value == TOKlparen) | |
1949 { // It's a function template declaration | |
1950 //printf("function template declaration\n"); | |
1951 | |
1952 // Gather template parameter list | |
1953 *tpl = parseTemplateParameterList(); | |
1954 } | |
1955 } | |
1956 | |
1957 arguments = parseParameters(&varargs); | |
1958 Type *ta = new TypeFunction(arguments, t, varargs, linkage); | |
1959 Type **pt; | |
1960 for (pt = &ts; *pt != t; pt = &(*pt)->next) | |
1961 ; | |
1962 *pt = ta; | |
1963 break; | |
1964 } | |
1965 } | |
1966 break; | |
1967 } | |
1968 | |
1969 return ts; | |
1970 } | |
1971 | |
1972 /********************************** | |
1973 * Parse Declarations. | |
1974 * These can be: | |
1975 * 1. declarations at global/class level | |
1976 * 2. declarations at statement level | |
1977 * Return array of Declaration *'s. | |
1978 */ | |
1979 | |
1980 Array *Parser::parseDeclarations() | |
1981 { | |
1982 enum STC storage_class; | |
1983 enum STC stc; | |
1984 Type *ts; | |
1985 Type *t; | |
1986 Type *tfirst; | |
1987 Identifier *ident; | |
1988 Array *a; | |
1989 enum TOK tok; | |
1990 unsigned char *comment = token.blockComment; | |
1991 enum LINK link = linkage; | |
1992 | |
1993 //printf("parseDeclarations()\n"); | |
1994 switch (token.value) | |
1995 { | |
1996 case TOKtypedef: | |
1997 case TOKalias: | |
1998 tok = token.value; | |
1999 nextToken(); | |
2000 break; | |
2001 | |
2002 default: | |
2003 tok = TOKreserved; | |
2004 break; | |
2005 } | |
2006 | |
2007 storage_class = STCundefined; | |
2008 while (1) | |
2009 { | |
2010 switch (token.value) | |
2011 { | |
2012 case TOKconst: stc = STCconst; goto L1; | |
2013 case TOKstatic: stc = STCstatic; goto L1; | |
2014 case TOKfinal: stc = STCfinal; goto L1; | |
2015 case TOKauto: stc = STCauto; goto L1; | |
2016 case TOKscope: stc = STCscope; goto L1; | |
2017 case TOKoverride: stc = STCoverride; goto L1; | |
2018 case TOKabstract: stc = STCabstract; goto L1; | |
2019 case TOKsynchronized: stc = STCsynchronized; goto L1; | |
2020 case TOKdeprecated: stc = STCdeprecated; goto L1; | |
2021 L1: | |
2022 if (storage_class & stc) | |
2023 error("redundant storage class '%s'", token.toChars()); | |
2024 storage_class = (STC) (storage_class | stc); | |
2025 nextToken(); | |
2026 continue; | |
2027 | |
2028 case TOKextern: | |
2029 if (peek(&token)->value != TOKlparen) | |
2030 { stc = STCextern; | |
2031 goto L1; | |
2032 } | |
2033 | |
2034 link = parseLinkage(); | |
2035 continue; | |
2036 | |
2037 default: | |
2038 break; | |
2039 } | |
2040 break; | |
2041 } | |
2042 | |
2043 a = new Array(); | |
2044 | |
2045 /* Look for auto initializers: | |
2046 * storage_class identifier = initializer; | |
2047 */ | |
2048 while (storage_class && | |
2049 token.value == TOKidentifier && | |
2050 peek(&token)->value == TOKassign) | |
2051 { | |
2052 ident = token.ident; | |
2053 nextToken(); | |
2054 nextToken(); | |
2055 Initializer *init = parseInitializer(); | |
2056 VarDeclaration *v = new VarDeclaration(loc, NULL, ident, init); | |
2057 v->storage_class = storage_class; | |
2058 a->push(v); | |
2059 if (token.value == TOKsemicolon) | |
2060 { | |
2061 nextToken(); | |
2062 addComment(v, comment); | |
2063 } | |
2064 else if (token.value == TOKcomma) | |
2065 { | |
2066 nextToken(); | |
2067 if (!(token.value == TOKidentifier && peek(&token)->value == TOKassign)) | |
2068 { | |
2069 error("Identifier expected following comma"); | |
2070 } | |
2071 else | |
2072 continue; | |
2073 } | |
2074 else | |
2075 error("semicolon expected following auto declaration, not '%s'", token.toChars()); | |
2076 return a; | |
2077 } | |
2078 | |
2079 if (token.value == TOKclass) | |
2080 { AggregateDeclaration *s; | |
2081 | |
2082 s = (AggregateDeclaration *)parseAggregate(); | |
2083 s->storage_class |= storage_class; | |
2084 a->push(s); | |
2085 addComment(s, comment); | |
2086 return a; | |
2087 } | |
2088 | |
2089 ts = parseBasicType(); | |
2090 ts = parseBasicType2(ts); | |
2091 tfirst = NULL; | |
2092 | |
2093 while (1) | |
2094 { | |
2095 Loc loc = this->loc; | |
2096 TemplateParameters *tpl = NULL; | |
2097 | |
2098 ident = NULL; | |
2099 t = parseDeclarator(ts, &ident, &tpl); | |
2100 assert(t); | |
2101 if (!tfirst) | |
2102 tfirst = t; | |
2103 else if (t != tfirst) | |
2104 error("multiple declarations must have the same type, not %s and %s", | |
2105 tfirst->toChars(), t->toChars()); | |
2106 if (!ident) | |
2107 error("no identifier for declarator %s", t->toChars()); | |
2108 | |
2109 if (tok == TOKtypedef || tok == TOKalias) | |
2110 { Declaration *v; | |
2111 Initializer *init; | |
2112 | |
2113 init = NULL; | |
2114 if (token.value == TOKassign) | |
2115 { | |
2116 nextToken(); | |
2117 init = parseInitializer(); | |
2118 } | |
2119 if (tok == TOKtypedef) | |
2120 v = new TypedefDeclaration(loc, ident, t, init); | |
2121 else | |
2122 { if (init) | |
2123 error("alias cannot have initializer"); | |
2124 v = new AliasDeclaration(loc, ident, t); | |
2125 } | |
2126 v->storage_class = storage_class; | |
2127 if (link == linkage) | |
2128 a->push(v); | |
2129 else | |
2130 { | |
2131 Array *ax = new Array(); | |
2132 ax->push(v); | |
2133 Dsymbol *s = new LinkDeclaration(link, ax); | |
2134 a->push(s); | |
2135 } | |
2136 switch (token.value) | |
2137 { case TOKsemicolon: | |
2138 nextToken(); | |
2139 addComment(v, comment); | |
2140 break; | |
2141 | |
2142 case TOKcomma: | |
2143 nextToken(); | |
2144 addComment(v, comment); | |
2145 continue; | |
2146 | |
2147 default: | |
2148 error("semicolon expected to close %s declaration", Token::toChars(tok)); | |
2149 break; | |
2150 } | |
2151 } | |
2152 else if (t->ty == Tfunction) | |
2153 { FuncDeclaration *f; | |
2154 Dsymbol *s; | |
2155 | |
2156 f = new FuncDeclaration(loc, 0, ident, storage_class, t); | |
2157 addComment(f, comment); | |
2158 parseContracts(f); | |
2159 addComment(f, NULL); | |
2160 if (link == linkage) | |
2161 { | |
2162 s = f; | |
2163 } | |
2164 else | |
2165 { | |
2166 Array *ax = new Array(); | |
2167 ax->push(f); | |
2168 s = new LinkDeclaration(link, ax); | |
2169 } | |
2170 if (tpl) // it's a function template | |
2171 { Array *decldefs; | |
2172 TemplateDeclaration *tempdecl; | |
2173 | |
2174 // Wrap a template around the aggregate declaration | |
2175 decldefs = new Array(); | |
2176 decldefs->push(s); | |
2177 tempdecl = new TemplateDeclaration(loc, s->ident, tpl, decldefs); | |
2178 s = tempdecl; | |
2179 } | |
2180 addComment(s, comment); | |
2181 a->push(s); | |
2182 } | |
2183 else | |
2184 { VarDeclaration *v; | |
2185 Initializer *init; | |
2186 | |
2187 init = NULL; | |
2188 if (token.value == TOKassign) | |
2189 { | |
2190 nextToken(); | |
2191 init = parseInitializer(); | |
2192 } | |
2193 v = new VarDeclaration(loc, t, ident, init); | |
2194 v->storage_class = storage_class; | |
2195 if (link == linkage) | |
2196 a->push(v); | |
2197 else | |
2198 { | |
2199 Array *ax = new Array(); | |
2200 ax->push(v); | |
2201 Dsymbol *s = new LinkDeclaration(link, ax); | |
2202 a->push(s); | |
2203 } | |
2204 switch (token.value) | |
2205 { case TOKsemicolon: | |
2206 nextToken(); | |
2207 addComment(v, comment); | |
2208 break; | |
2209 | |
2210 case TOKcomma: | |
2211 nextToken(); | |
2212 addComment(v, comment); | |
2213 continue; | |
2214 | |
2215 default: | |
2216 error("semicolon expected, not '%s'", token.toChars()); | |
2217 break; | |
2218 } | |
2219 } | |
2220 break; | |
2221 } | |
2222 return a; | |
2223 } | |
2224 | |
2225 /***************************************** | |
2226 * Parse auto declarations of the form: | |
2227 * storageClass ident = init, ident = init, ... ; | |
2228 * and return the array of them. | |
2229 * Starts with token on the first ident. | |
2230 * Ends with scanner past closing ';' | |
2231 */ | |
2232 | |
2233 #if DMDV2 | |
2234 Array *Parser::parseAutoDeclarations(unsigned storageClass, unsigned char *comment) | |
2235 { | |
2236 Array *a = new Array; | |
2237 | |
2238 while (1) | |
2239 { | |
2240 Identifier *ident = token.ident; | |
2241 nextToken(); // skip over ident | |
2242 assert(token.value == TOKassign); | |
2243 nextToken(); // skip over '=' | |
2244 Initializer *init = parseInitializer(); | |
2245 VarDeclaration *v = new VarDeclaration(loc, NULL, ident, init); | |
2246 v->storage_class = storageClass; | |
2247 a->push(v); | |
2248 if (token.value == TOKsemicolon) | |
2249 { | |
2250 nextToken(); | |
2251 addComment(v, comment); | |
2252 } | |
2253 else if (token.value == TOKcomma) | |
2254 { | |
2255 nextToken(); | |
2256 if (token.value == TOKidentifier && | |
2257 peek(&token)->value == TOKassign) | |
2258 { | |
2259 addComment(v, comment); | |
2260 continue; | |
2261 } | |
2262 else | |
2263 error("Identifier expected following comma"); | |
2264 } | |
2265 else | |
2266 error("semicolon expected following auto declaration, not '%s'", token.toChars()); | |
2267 break; | |
2268 } | |
2269 return a; | |
2270 } | |
2271 #endif | |
2272 | |
2273 /***************************************** | |
2274 * Parse contracts following function declaration. | |
2275 */ | |
2276 | |
2277 void Parser::parseContracts(FuncDeclaration *f) | |
2278 { | |
2279 Type *tb; | |
2280 enum LINK linksave = linkage; | |
2281 | |
2282 // The following is irrelevant, as it is overridden by sc->linkage in | |
2283 // TypeFunction::semantic | |
2284 linkage = LINKd; // nested functions have D linkage | |
2285 L1: | |
2286 switch (token.value) | |
2287 { | |
2288 case TOKlcurly: | |
2289 if (f->frequire || f->fensure) | |
2290 error("missing body { ... } after in or out"); | |
2291 f->fbody = parseStatement(PSsemi); | |
2292 f->endloc = endloc; | |
2293 break; | |
2294 | |
2295 case TOKbody: | |
2296 nextToken(); | |
2297 f->fbody = parseStatement(PScurly); | |
2298 f->endloc = endloc; | |
2299 break; | |
2300 | |
2301 case TOKsemicolon: | |
2302 if (f->frequire || f->fensure) | |
2303 error("missing body { ... } after in or out"); | |
2304 nextToken(); | |
2305 break; | |
2306 | |
2307 #if 0 // Do we want this for function declarations, so we can do: | |
2308 // int x, y, foo(), z; | |
2309 case TOKcomma: | |
2310 nextToken(); | |
2311 continue; | |
2312 #endif | |
2313 | |
2314 #if 0 // Dumped feature | |
2315 case TOKthrow: | |
2316 if (!f->fthrows) | |
2317 f->fthrows = new Array(); | |
2318 nextToken(); | |
2319 check(TOKlparen); | |
2320 while (1) | |
2321 { | |
2322 tb = parseBasicType(); | |
2323 f->fthrows->push(tb); | |
2324 if (token.value == TOKcomma) | |
2325 { nextToken(); | |
2326 continue; | |
2327 } | |
2328 break; | |
2329 } | |
2330 check(TOKrparen); | |
2331 goto L1; | |
2332 #endif | |
2333 | |
2334 case TOKin: | |
2335 nextToken(); | |
2336 if (f->frequire) | |
2337 error("redundant 'in' statement"); | |
2338 f->frequire = parseStatement(PScurly | PSscope); | |
2339 goto L1; | |
2340 | |
2341 case TOKout: | |
2342 // parse: out (identifier) { statement } | |
2343 nextToken(); | |
2344 if (token.value != TOKlcurly) | |
2345 { | |
2346 check(TOKlparen); | |
2347 if (token.value != TOKidentifier) | |
2348 error("(identifier) following 'out' expected, not %s", token.toChars()); | |
2349 f->outId = token.ident; | |
2350 nextToken(); | |
2351 check(TOKrparen); | |
2352 } | |
2353 if (f->fensure) | |
2354 error("redundant 'out' statement"); | |
2355 f->fensure = parseStatement(PScurly | PSscope); | |
2356 goto L1; | |
2357 | |
2358 default: | |
2359 error("semicolon expected following function declaration"); | |
2360 break; | |
2361 } | |
2362 linkage = linksave; | |
2363 } | |
2364 | |
2365 /***************************************** | |
2366 */ | |
2367 | |
2368 Initializer *Parser::parseInitializer() | |
2369 { | |
2370 StructInitializer *is; | |
2371 ArrayInitializer *ia; | |
2372 ExpInitializer *ie; | |
2373 Expression *e; | |
2374 Identifier *id; | |
2375 Initializer *value; | |
2376 int comma; | |
2377 Loc loc = this->loc; | |
2378 Token *t; | |
2379 int braces; | |
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2380 int brackets; |
336 | 2381 |
2382 switch (token.value) | |
2383 { | |
2384 case TOKlcurly: | |
2385 /* Scan ahead to see if it is a struct initializer or | |
2386 * a function literal. | |
2387 * If it contains a ';', it is a function literal. | |
2388 * Treat { } as a struct initializer. | |
2389 */ | |
2390 braces = 1; | |
2391 for (t = peek(&token); 1; t = peek(t)) | |
2392 { | |
2393 switch (t->value) | |
2394 { | |
2395 case TOKsemicolon: | |
2396 case TOKreturn: | |
2397 goto Lexpression; | |
2398 | |
2399 case TOKlcurly: | |
2400 braces++; | |
2401 continue; | |
2402 | |
2403 case TOKrcurly: | |
2404 if (--braces == 0) | |
2405 break; | |
2406 continue; | |
2407 | |
2408 case TOKeof: | |
2409 break; | |
2410 | |
2411 default: | |
2412 continue; | |
2413 } | |
2414 break; | |
2415 } | |
2416 | |
2417 is = new StructInitializer(loc); | |
2418 nextToken(); | |
2419 comma = 0; | |
2420 while (1) | |
2421 { | |
2422 switch (token.value) | |
2423 { | |
2424 case TOKidentifier: | |
2425 if (comma == 1) | |
2426 error("comma expected separating field initializers"); | |
2427 t = peek(&token); | |
2428 if (t->value == TOKcolon) | |
2429 { | |
2430 id = token.ident; | |
2431 nextToken(); | |
2432 nextToken(); // skip over ':' | |
2433 } | |
2434 else | |
2435 { id = NULL; | |
2436 } | |
2437 value = parseInitializer(); | |
2438 is->addInit(id, value); | |
2439 comma = 1; | |
2440 continue; | |
2441 | |
2442 case TOKcomma: | |
2443 nextToken(); | |
2444 comma = 2; | |
2445 continue; | |
2446 | |
2447 case TOKrcurly: // allow trailing comma's | |
2448 nextToken(); | |
2449 break; | |
2450 | |
2451 case TOKeof: | |
2452 error("found EOF instead of initializer"); | |
2453 break; | |
2454 | |
2455 default: | |
2456 value = parseInitializer(); | |
2457 is->addInit(NULL, value); | |
2458 comma = 1; | |
2459 continue; | |
2460 //error("found '%s' instead of field initializer", token.toChars()); | |
2461 //break; | |
2462 } | |
2463 break; | |
2464 } | |
2465 return is; | |
2466 | |
2467 case TOKlbracket: | |
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2468 /* Scan ahead to see if it is an array initializer or |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2469 * an expression. |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2470 * If it ends with a ';', it is an array initializer. |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2471 */ |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2472 brackets = 1; |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2473 for (t = peek(&token); 1; t = peek(t)) |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2474 { |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2475 switch (t->value) |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2476 { |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2477 case TOKlbracket: |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2478 brackets++; |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2479 continue; |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2480 |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2481 case TOKrbracket: |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2482 if (--brackets == 0) |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2483 { t = peek(t); |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2484 if (t->value != TOKsemicolon && |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2485 t->value != TOKcomma && |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2486 t->value != TOKrcurly) |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2487 goto Lexpression; |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2488 break; |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2489 } |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2490 continue; |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2491 |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2492 case TOKeof: |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2493 break; |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2494 |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2495 default: |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2496 continue; |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2497 } |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2498 break; |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2499 } |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
2500 |
336 | 2501 ia = new ArrayInitializer(loc); |
2502 nextToken(); | |
2503 comma = 0; | |
2504 while (1) | |
2505 { | |
2506 switch (token.value) | |
2507 { | |
2508 default: | |
2509 if (comma == 1) | |
2510 { error("comma expected separating array initializers, not %s", token.toChars()); | |
2511 nextToken(); | |
2512 break; | |
2513 } | |
2514 e = parseAssignExp(); | |
2515 if (!e) | |
2516 break; | |
2517 if (token.value == TOKcolon) | |
2518 { | |
2519 nextToken(); | |
2520 value = parseInitializer(); | |
2521 } | |
2522 else | |
2523 { value = new ExpInitializer(e->loc, e); | |
2524 e = NULL; | |
2525 } | |
2526 ia->addInit(e, value); | |
2527 comma = 1; | |
2528 continue; | |
2529 | |
2530 case TOKlcurly: | |
2531 case TOKlbracket: | |
2532 if (comma == 1) | |
2533 error("comma expected separating array initializers, not %s", token.toChars()); | |
2534 value = parseInitializer(); | |
2535 ia->addInit(NULL, value); | |
2536 comma = 1; | |
2537 continue; | |
2538 | |
2539 case TOKcomma: | |
2540 nextToken(); | |
2541 comma = 2; | |
2542 continue; | |
2543 | |
2544 case TOKrbracket: // allow trailing comma's | |
2545 nextToken(); | |
2546 break; | |
2547 | |
2548 case TOKeof: | |
2549 error("found '%s' instead of array initializer", token.toChars()); | |
2550 break; | |
2551 } | |
2552 break; | |
2553 } | |
2554 return ia; | |
2555 | |
2556 case TOKvoid: | |
2557 t = peek(&token); | |
2558 if (t->value == TOKsemicolon || t->value == TOKcomma) | |
2559 { | |
2560 nextToken(); | |
2561 return new VoidInitializer(loc); | |
2562 } | |
2563 goto Lexpression; | |
2564 | |
2565 default: | |
2566 Lexpression: | |
2567 e = parseAssignExp(); | |
2568 ie = new ExpInitializer(loc, e); | |
2569 return ie; | |
2570 } | |
2571 } | |
2572 | |
2573 /***************************************** | |
2574 * Parses default argument initializer expression that is an assign expression, | |
2575 * with special handling for __FILE__ and __LINE__. | |
2576 */ | |
2577 | |
2578 #if DMDV2 | |
2579 Expression *Parser::parseDefaultInitExp() | |
2580 { | |
2581 if (token.value == TOKfile || | |
2582 token.value == TOKline) | |
2583 { | |
2584 Token *t = peek(&token); | |
2585 if (t->value == TOKcomma || t->value == TOKrparen) | |
2586 { Expression *e; | |
2587 | |
2588 if (token.value == TOKfile) | |
2589 e = new FileInitExp(loc); | |
2590 else | |
2591 e = new LineInitExp(loc); | |
2592 nextToken(); | |
2593 return e; | |
2594 } | |
2595 } | |
2596 | |
2597 Expression *e = parseAssignExp(); | |
2598 return e; | |
2599 } | |
2600 #endif | |
2601 | |
2602 /***************************************** | |
2603 * Input: | |
2604 * flags PSxxxx | |
2605 */ | |
2606 | |
2607 Statement *Parser::parseStatement(int flags) | |
2608 { Statement *s; | |
2609 Token *t; | |
2610 Condition *condition; | |
2611 Statement *ifbody; | |
2612 Statement *elsebody; | |
2613 Loc loc = this->loc; | |
2614 | |
2615 //printf("parseStatement()\n"); | |
2616 | |
2617 if (flags & PScurly && token.value != TOKlcurly) | |
2618 error("statement expected to be { }, not %s", token.toChars()); | |
2619 | |
2620 switch (token.value) | |
2621 { | |
2622 case TOKidentifier: | |
2623 // Need to look ahead to see if it is a declaration, label, or expression | |
2624 t = peek(&token); | |
2625 if (t->value == TOKcolon) | |
2626 { // It's a label | |
2627 Identifier *ident; | |
2628 | |
2629 ident = token.ident; | |
2630 nextToken(); | |
2631 nextToken(); | |
2632 s = parseStatement(PSsemi); | |
2633 s = new LabelStatement(loc, ident, s); | |
2634 break; | |
2635 } | |
2636 // fallthrough to TOKdot | |
2637 case TOKdot: | |
2638 case TOKtypeof: | |
2639 if (isDeclaration(&token, 2, TOKreserved, NULL)) | |
2640 goto Ldeclaration; | |
2641 else | |
2642 goto Lexp; | |
2643 break; | |
2644 | |
2645 case TOKassert: | |
2646 case TOKthis: | |
2647 case TOKsuper: | |
2648 case TOKint32v: | |
2649 case TOKuns32v: | |
2650 case TOKint64v: | |
2651 case TOKuns64v: | |
2652 case TOKfloat32v: | |
2653 case TOKfloat64v: | |
2654 case TOKfloat80v: | |
2655 case TOKimaginary32v: | |
2656 case TOKimaginary64v: | |
2657 case TOKimaginary80v: | |
2658 case TOKcharv: | |
2659 case TOKwcharv: | |
2660 case TOKdcharv: | |
2661 case TOKnull: | |
2662 case TOKtrue: | |
2663 case TOKfalse: | |
2664 case TOKstring: | |
2665 case TOKlparen: | |
2666 case TOKcast: | |
2667 case TOKmul: | |
2668 case TOKmin: | |
2669 case TOKadd: | |
2670 case TOKplusplus: | |
2671 case TOKminusminus: | |
2672 case TOKnew: | |
2673 case TOKdelete: | |
2674 case TOKdelegate: | |
2675 case TOKfunction: | |
2676 case TOKtypeid: | |
2677 case TOKis: | |
2678 case TOKlbracket: | |
2679 #if DMDV2 | |
2680 case TOKtraits: | |
2681 case TOKfile: | |
2682 case TOKline: | |
2683 #endif | |
2684 Lexp: | |
2685 { Expression *exp; | |
2686 | |
2687 exp = parseExpression(); | |
2688 check(TOKsemicolon, "statement"); | |
2689 s = new ExpStatement(loc, exp); | |
2690 break; | |
2691 } | |
2692 | |
2693 case TOKstatic: | |
2694 { // Look ahead to see if it's static assert() or static if() | |
2695 Token *t; | |
2696 | |
2697 t = peek(&token); | |
2698 if (t->value == TOKassert) | |
2699 { | |
2700 nextToken(); | |
2701 s = new StaticAssertStatement(parseStaticAssert()); | |
2702 break; | |
2703 } | |
2704 if (t->value == TOKif) | |
2705 { | |
2706 nextToken(); | |
2707 condition = parseStaticIfCondition(); | |
2708 goto Lcondition; | |
2709 } | |
2710 goto Ldeclaration; | |
2711 } | |
2712 | |
2713 CASE_BASIC_TYPES: | |
2714 case TOKtypedef: | |
2715 case TOKalias: | |
2716 case TOKconst: | |
2717 case TOKauto: | |
2718 case TOKextern: | |
2719 case TOKfinal: | |
2720 case TOKinvariant: | |
2721 // case TOKtypeof: | |
2722 Ldeclaration: | |
2723 { Array *a; | |
2724 | |
2725 a = parseDeclarations(); | |
2726 if (a->dim > 1) | |
2727 { | |
2728 Statements *as = new Statements(); | |
2729 as->reserve(a->dim); | |
2730 for (int i = 0; i < a->dim; i++) | |
2731 { | |
2732 Dsymbol *d = (Dsymbol *)a->data[i]; | |
2733 s = new DeclarationStatement(loc, d); | |
2734 as->push(s); | |
2735 } | |
2736 s = new CompoundStatement(loc, as); | |
2737 } | |
2738 else if (a->dim == 1) | |
2739 { | |
2740 Dsymbol *d = (Dsymbol *)a->data[0]; | |
2741 s = new DeclarationStatement(loc, d); | |
2742 } | |
2743 else | |
2744 assert(0); | |
2745 if (flags & PSscope) | |
2746 s = new ScopeStatement(loc, s); | |
2747 break; | |
2748 } | |
2749 | |
2750 case TOKstruct: | |
2751 case TOKunion: | |
2752 case TOKclass: | |
2753 case TOKinterface: | |
2754 { Dsymbol *d; | |
2755 | |
2756 d = parseAggregate(); | |
2757 s = new DeclarationStatement(loc, d); | |
2758 break; | |
2759 } | |
2760 | |
2761 case TOKenum: | |
2762 { Dsymbol *d; | |
2763 | |
2764 d = parseEnum(); | |
2765 s = new DeclarationStatement(loc, d); | |
2766 break; | |
2767 } | |
2768 | |
2769 case TOKmixin: | |
2770 { t = peek(&token); | |
2771 if (t->value == TOKlparen) | |
2772 { // mixin(string) | |
2773 nextToken(); | |
2774 check(TOKlparen, "mixin"); | |
2775 Expression *e = parseAssignExp(); | |
2776 check(TOKrparen); | |
2777 check(TOKsemicolon); | |
2778 s = new CompileStatement(loc, e); | |
2779 break; | |
2780 } | |
2781 Dsymbol *d = parseMixin(); | |
2782 s = new DeclarationStatement(loc, d); | |
2783 break; | |
2784 } | |
2785 | |
2786 case TOKlcurly: | |
2787 { Statements *statements; | |
2788 | |
2789 nextToken(); | |
2790 statements = new Statements(); | |
2791 while (token.value != TOKrcurly) | |
2792 { | |
2793 statements->push(parseStatement(PSsemi | PScurlyscope)); | |
2794 } | |
2795 endloc = this->loc; | |
2796 s = new CompoundStatement(loc, statements); | |
2797 if (flags & (PSscope | PScurlyscope)) | |
2798 s = new ScopeStatement(loc, s); | |
2799 nextToken(); | |
2800 break; | |
2801 } | |
2802 | |
2803 case TOKwhile: | |
2804 { Expression *condition; | |
2805 Statement *body; | |
2806 | |
2807 nextToken(); | |
2808 check(TOKlparen); | |
2809 condition = parseExpression(); | |
2810 check(TOKrparen); | |
2811 body = parseStatement(PSscope); | |
2812 s = new WhileStatement(loc, condition, body); | |
2813 break; | |
2814 } | |
2815 | |
2816 case TOKsemicolon: | |
2817 if (!(flags & PSsemi)) | |
2818 error("use '{ }' for an empty statement, not a ';'"); | |
2819 nextToken(); | |
2820 s = new ExpStatement(loc, NULL); | |
2821 break; | |
2822 | |
2823 case TOKdo: | |
2824 { Statement *body; | |
2825 Expression *condition; | |
2826 | |
2827 nextToken(); | |
2828 body = parseStatement(PSscope); | |
2829 check(TOKwhile); | |
2830 check(TOKlparen); | |
2831 condition = parseExpression(); | |
2832 check(TOKrparen); | |
2833 s = new DoStatement(loc, body, condition); | |
2834 break; | |
2835 } | |
2836 | |
2837 case TOKfor: | |
2838 { | |
2839 Statement *init; | |
2840 Expression *condition; | |
2841 Expression *increment; | |
2842 Statement *body; | |
2843 | |
2844 nextToken(); | |
2845 check(TOKlparen); | |
2846 if (token.value == TOKsemicolon) | |
2847 { init = NULL; | |
2848 nextToken(); | |
2849 } | |
2850 else | |
2851 { init = parseStatement(0); | |
2852 } | |
2853 if (token.value == TOKsemicolon) | |
2854 { | |
2855 condition = NULL; | |
2856 nextToken(); | |
2857 } | |
2858 else | |
2859 { | |
2860 condition = parseExpression(); | |
2861 check(TOKsemicolon, "for condition"); | |
2862 } | |
2863 if (token.value == TOKrparen) | |
2864 { increment = NULL; | |
2865 nextToken(); | |
2866 } | |
2867 else | |
2868 { increment = parseExpression(); | |
2869 check(TOKrparen); | |
2870 } | |
2871 body = parseStatement(PSscope); | |
2872 s = new ForStatement(loc, init, condition, increment, body); | |
2873 if (init) | |
2874 s = new ScopeStatement(loc, s); | |
2875 break; | |
2876 } | |
2877 | |
2878 case TOKforeach: | |
2879 case TOKforeach_reverse: | |
2880 { | |
2881 enum TOK op = token.value; | |
2882 Arguments *arguments; | |
2883 | |
2884 Statement *d; | |
2885 Statement *body; | |
2886 Expression *aggr; | |
2887 | |
2888 nextToken(); | |
2889 check(TOKlparen); | |
2890 | |
2891 arguments = new Arguments(); | |
2892 | |
2893 while (1) | |
2894 { | |
2895 Type *tb; | |
2896 Identifier *ai = NULL; | |
2897 Type *at; | |
2898 unsigned storageClass; | |
2899 Argument *a; | |
2900 | |
2901 storageClass = STCin; | |
2902 if (token.value == TOKinout || token.value == TOKref) | |
2903 { storageClass = STCref; | |
2904 nextToken(); | |
2905 } | |
2906 if (token.value == TOKidentifier) | |
2907 { | |
2908 Token *t = peek(&token); | |
2909 if (t->value == TOKcomma || t->value == TOKsemicolon) | |
2910 { ai = token.ident; | |
2911 at = NULL; // infer argument type | |
2912 nextToken(); | |
2913 goto Larg; | |
2914 } | |
2915 } | |
2916 tb = parseBasicType(); | |
2917 at = parseDeclarator(tb, &ai); | |
2918 if (!ai) | |
2919 error("no identifier for declarator %s", at->toChars()); | |
2920 Larg: | |
2921 a = new Argument(storageClass, at, ai, NULL); | |
2922 arguments->push(a); | |
2923 if (token.value == TOKcomma) | |
2924 { nextToken(); | |
2925 continue; | |
2926 } | |
2927 break; | |
2928 } | |
2929 check(TOKsemicolon); | |
2930 | |
2931 aggr = parseExpression(); | |
2932 check(TOKrparen); | |
2933 body = parseStatement(0); | |
2934 s = new ForeachStatement(loc, op, arguments, aggr, body); | |
2935 break; | |
2936 } | |
2937 | |
2938 case TOKif: | |
2939 { Argument *arg = NULL; | |
2940 Expression *condition; | |
2941 Statement *ifbody; | |
2942 Statement *elsebody; | |
2943 | |
2944 nextToken(); | |
2945 check(TOKlparen); | |
2946 | |
2947 if (token.value == TOKauto) | |
2948 { | |
2949 nextToken(); | |
2950 if (token.value == TOKidentifier) | |
2951 { | |
2952 Token *t = peek(&token); | |
2953 if (t->value == TOKassign) | |
2954 { | |
2955 arg = new Argument(STCin, NULL, token.ident, NULL); | |
2956 nextToken(); | |
2957 nextToken(); | |
2958 } | |
2959 else | |
2960 { error("= expected following auto identifier"); | |
2961 goto Lerror; | |
2962 } | |
2963 } | |
2964 else | |
2965 { error("identifier expected following auto"); | |
2966 goto Lerror; | |
2967 } | |
2968 } | |
2969 else if (isDeclaration(&token, 2, TOKassign, NULL)) | |
2970 { | |
2971 Type *tb; | |
2972 Type *at; | |
2973 Identifier *ai; | |
2974 | |
2975 tb = parseBasicType(); | |
2976 at = parseDeclarator(tb, &ai); | |
2977 check(TOKassign); | |
2978 arg = new Argument(STCin, at, ai, NULL); | |
2979 } | |
2980 | |
2981 // Check for " ident;" | |
2982 else if (token.value == TOKidentifier) | |
2983 { | |
2984 Token *t = peek(&token); | |
2985 if (t->value == TOKcomma || t->value == TOKsemicolon) | |
2986 { | |
2987 arg = new Argument(STCin, NULL, token.ident, NULL); | |
2988 nextToken(); | |
2989 nextToken(); | |
2990 if (1 || !global.params.useDeprecated) | |
2991 error("if (v; e) is deprecated, use if (auto v = e)"); | |
2992 } | |
2993 } | |
2994 | |
2995 condition = parseExpression(); | |
2996 check(TOKrparen); | |
2997 ifbody = parseStatement(PSscope); | |
2998 if (token.value == TOKelse) | |
2999 { | |
3000 nextToken(); | |
3001 elsebody = parseStatement(PSscope); | |
3002 } | |
3003 else | |
3004 elsebody = NULL; | |
3005 s = new IfStatement(loc, arg, condition, ifbody, elsebody); | |
3006 break; | |
3007 } | |
3008 | |
3009 case TOKscope: | |
3010 if (peek(&token)->value != TOKlparen) | |
3011 goto Ldeclaration; // scope used as storage class | |
3012 nextToken(); | |
3013 check(TOKlparen); | |
3014 if (token.value != TOKidentifier) | |
3015 { error("scope identifier expected"); | |
3016 goto Lerror; | |
3017 } | |
3018 else | |
3019 { TOK t = TOKon_scope_exit; | |
3020 Identifier *id = token.ident; | |
3021 | |
3022 if (id == Id::exit) | |
3023 t = TOKon_scope_exit; | |
3024 else if (id == Id::failure) | |
3025 t = TOKon_scope_failure; | |
3026 else if (id == Id::success) | |
3027 t = TOKon_scope_success; | |
3028 else | |
3029 error("valid scope identifiers are exit, failure, or success, not %s", id->toChars()); | |
3030 nextToken(); | |
3031 check(TOKrparen); | |
3032 Statement *st = parseStatement(PScurlyscope); | |
3033 s = new OnScopeStatement(loc, t, st); | |
3034 break; | |
3035 } | |
3036 | |
3037 case TOKdebug: | |
3038 nextToken(); | |
3039 condition = parseDebugCondition(); | |
3040 goto Lcondition; | |
3041 | |
3042 case TOKversion: | |
3043 nextToken(); | |
3044 condition = parseVersionCondition(); | |
3045 goto Lcondition; | |
3046 | |
3047 Lcondition: | |
3048 ifbody = parseStatement(0 /*PSsemi*/); | |
3049 elsebody = NULL; | |
3050 if (token.value == TOKelse) | |
3051 { | |
3052 nextToken(); | |
3053 elsebody = parseStatement(0 /*PSsemi*/); | |
3054 } | |
3055 s = new ConditionalStatement(loc, condition, ifbody, elsebody); | |
3056 break; | |
3057 | |
3058 case TOKpragma: | |
3059 { Identifier *ident; | |
3060 Expressions *args = NULL; | |
3061 Statement *body; | |
3062 | |
3063 nextToken(); | |
3064 check(TOKlparen); | |
3065 if (token.value != TOKidentifier) | |
3066 { error("pragma(identifier expected"); | |
3067 goto Lerror; | |
3068 } | |
3069 ident = token.ident; | |
3070 nextToken(); | |
3071 if (token.value == TOKcomma) | |
3072 args = parseArguments(); // pragma(identifier, args...); | |
3073 else | |
3074 check(TOKrparen); // pragma(identifier); | |
3075 if (token.value == TOKsemicolon) | |
3076 { nextToken(); | |
3077 body = NULL; | |
3078 } | |
3079 else | |
3080 body = parseStatement(PSsemi); | |
3081 s = new PragmaStatement(loc, ident, args, body); | |
3082 break; | |
3083 } | |
3084 | |
3085 case TOKswitch: | |
3086 { Expression *condition; | |
3087 Statement *body; | |
3088 | |
3089 nextToken(); | |
3090 check(TOKlparen); | |
3091 condition = parseExpression(); | |
3092 check(TOKrparen); | |
3093 body = parseStatement(PSscope); | |
3094 s = new SwitchStatement(loc, condition, body); | |
3095 break; | |
3096 } | |
3097 | |
3098 case TOKcase: | |
3099 { Expression *exp; | |
3100 Statements *statements; | |
3101 Array cases; // array of Expression's | |
3102 | |
3103 while (1) | |
3104 { | |
3105 nextToken(); | |
3106 exp = parseAssignExp(); | |
3107 cases.push(exp); | |
3108 if (token.value != TOKcomma) | |
3109 break; | |
3110 } | |
3111 check(TOKcolon); | |
3112 | |
3113 statements = new Statements(); | |
3114 while (token.value != TOKcase && | |
3115 token.value != TOKdefault && | |
3116 token.value != TOKrcurly) | |
3117 { | |
3118 statements->push(parseStatement(PSsemi | PScurlyscope)); | |
3119 } | |
3120 s = new CompoundStatement(loc, statements); | |
3121 s = new ScopeStatement(loc, s); | |
3122 | |
3123 // Keep cases in order by building the case statements backwards | |
3124 for (int i = cases.dim; i; i--) | |
3125 { | |
3126 exp = (Expression *)cases.data[i - 1]; | |
3127 s = new CaseStatement(loc, exp, s); | |
3128 } | |
3129 break; | |
3130 } | |
3131 | |
3132 case TOKdefault: | |
3133 { | |
3134 Statements *statements; | |
3135 | |
3136 nextToken(); | |
3137 check(TOKcolon); | |
3138 | |
3139 statements = new Statements(); | |
3140 while (token.value != TOKcase && | |
3141 token.value != TOKdefault && | |
3142 token.value != TOKrcurly) | |
3143 { | |
3144 statements->push(parseStatement(PSsemi | PScurlyscope)); | |
3145 } | |
3146 s = new CompoundStatement(loc, statements); | |
3147 s = new ScopeStatement(loc, s); | |
3148 s = new DefaultStatement(loc, s); | |
3149 break; | |
3150 } | |
3151 | |
3152 case TOKreturn: | |
3153 { Expression *exp; | |
3154 | |
3155 nextToken(); | |
3156 if (token.value == TOKsemicolon) | |
3157 exp = NULL; | |
3158 else | |
3159 exp = parseExpression(); | |
3160 check(TOKsemicolon, "return statement"); | |
3161 s = new ReturnStatement(loc, exp); | |
3162 break; | |
3163 } | |
3164 | |
3165 case TOKbreak: | |
3166 { Identifier *ident; | |
3167 | |
3168 nextToken(); | |
3169 if (token.value == TOKidentifier) | |
3170 { ident = token.ident; | |
3171 nextToken(); | |
3172 } | |
3173 else | |
3174 ident = NULL; | |
3175 check(TOKsemicolon, "break statement"); | |
3176 s = new BreakStatement(loc, ident); | |
3177 break; | |
3178 } | |
3179 | |
3180 case TOKcontinue: | |
3181 { Identifier *ident; | |
3182 | |
3183 nextToken(); | |
3184 if (token.value == TOKidentifier) | |
3185 { ident = token.ident; | |
3186 nextToken(); | |
3187 } | |
3188 else | |
3189 ident = NULL; | |
3190 check(TOKsemicolon, "continue statement"); | |
3191 s = new ContinueStatement(loc, ident); | |
3192 break; | |
3193 } | |
3194 | |
3195 case TOKgoto: | |
3196 { Identifier *ident; | |
3197 | |
3198 nextToken(); | |
3199 if (token.value == TOKdefault) | |
3200 { | |
3201 nextToken(); | |
3202 s = new GotoDefaultStatement(loc); | |
3203 } | |
3204 else if (token.value == TOKcase) | |
3205 { | |
3206 Expression *exp = NULL; | |
3207 | |
3208 nextToken(); | |
3209 if (token.value != TOKsemicolon) | |
3210 exp = parseExpression(); | |
3211 s = new GotoCaseStatement(loc, exp); | |
3212 } | |
3213 else | |
3214 { | |
3215 if (token.value != TOKidentifier) | |
3216 { error("Identifier expected following goto"); | |
3217 ident = NULL; | |
3218 } | |
3219 else | |
3220 { ident = token.ident; | |
3221 nextToken(); | |
3222 } | |
3223 s = new GotoStatement(loc, ident); | |
3224 } | |
3225 check(TOKsemicolon, "goto statement"); | |
3226 break; | |
3227 } | |
3228 | |
3229 case TOKsynchronized: | |
3230 { Expression *exp; | |
3231 Statement *body; | |
3232 | |
3233 nextToken(); | |
3234 if (token.value == TOKlparen) | |
3235 { | |
3236 nextToken(); | |
3237 exp = parseExpression(); | |
3238 check(TOKrparen); | |
3239 } | |
3240 else | |
3241 exp = NULL; | |
3242 body = parseStatement(PSscope); | |
3243 s = new SynchronizedStatement(loc, exp, body); | |
3244 break; | |
3245 } | |
3246 | |
3247 case TOKwith: | |
3248 { Expression *exp; | |
3249 Statement *body; | |
3250 | |
3251 nextToken(); | |
3252 check(TOKlparen); | |
3253 exp = parseExpression(); | |
3254 check(TOKrparen); | |
3255 body = parseStatement(PSscope); | |
3256 s = new WithStatement(loc, exp, body); | |
3257 break; | |
3258 } | |
3259 | |
3260 case TOKtry: | |
3261 { Statement *body; | |
3262 Array *catches = NULL; | |
3263 Statement *finalbody = NULL; | |
3264 | |
3265 nextToken(); | |
3266 body = parseStatement(PSscope); | |
3267 while (token.value == TOKcatch) | |
3268 { | |
3269 Statement *handler; | |
3270 Catch *c; | |
3271 Type *t; | |
3272 Identifier *id; | |
3273 Loc loc = this->loc; | |
3274 | |
3275 nextToken(); | |
3276 if (token.value == TOKlcurly) | |
3277 { | |
3278 t = NULL; | |
3279 id = NULL; | |
3280 } | |
3281 else | |
3282 { | |
3283 check(TOKlparen); | |
3284 t = parseBasicType(); | |
3285 id = NULL; | |
3286 t = parseDeclarator(t, &id); | |
3287 check(TOKrparen); | |
3288 } | |
3289 handler = parseStatement(0); | |
3290 c = new Catch(loc, t, id, handler); | |
3291 if (!catches) | |
3292 catches = new Array(); | |
3293 catches->push(c); | |
3294 } | |
3295 | |
3296 if (token.value == TOKfinally) | |
3297 { nextToken(); | |
3298 finalbody = parseStatement(0); | |
3299 } | |
3300 | |
3301 s = body; | |
3302 if (!catches && !finalbody) | |
3303 error("catch or finally expected following try"); | |
3304 else | |
3305 { if (catches) | |
3306 s = new TryCatchStatement(loc, body, catches); | |
3307 if (finalbody) | |
3308 s = new TryFinallyStatement(loc, s, finalbody); | |
3309 } | |
3310 break; | |
3311 } | |
3312 | |
3313 case TOKthrow: | |
3314 { Expression *exp; | |
3315 | |
3316 nextToken(); | |
3317 exp = parseExpression(); | |
3318 check(TOKsemicolon, "throw statement"); | |
3319 s = new ThrowStatement(loc, exp); | |
3320 break; | |
3321 } | |
3322 | |
3323 case TOKvolatile: | |
3324 nextToken(); | |
3325 s = parseStatement(PSsemi | PScurlyscope); | |
3326 #if DMDV2 | |
3327 if (!global.params.useDeprecated) | |
3328 error("volatile statements deprecated; used synchronized statements instead"); | |
3329 #endif | |
3330 s = new VolatileStatement(loc, s); | |
3331 break; | |
3332 | |
3333 case TOKasm: | |
3334 { Statements *statements; | |
3335 Identifier *label; | |
3336 Loc labelloc; | |
3337 Token *toklist; | |
3338 Token **ptoklist; | |
3339 | |
3340 // Parse the asm block into a sequence of AsmStatements, | |
3341 // each AsmStatement is one instruction. | |
3342 // Separate out labels. | |
3343 // Defer parsing of AsmStatements until semantic processing. | |
3344 | |
3345 nextToken(); | |
3346 check(TOKlcurly); | |
3347 toklist = NULL; | |
3348 ptoklist = &toklist; | |
3349 label = NULL; | |
3350 statements = new Statements(); | |
3351 while (1) | |
3352 { | |
3353 switch (token.value) | |
3354 { | |
3355 case TOKidentifier: | |
3356 if (!toklist) | |
3357 { | |
3358 // Look ahead to see if it is a label | |
3359 t = peek(&token); | |
3360 if (t->value == TOKcolon) | |
3361 { // It's a label | |
3362 label = token.ident; | |
3363 labelloc = this->loc; | |
3364 nextToken(); | |
3365 nextToken(); | |
3366 continue; | |
3367 } | |
3368 } | |
3369 goto Ldefault; | |
3370 | |
3371 case TOKrcurly: | |
3372 if (toklist || label) | |
3373 { | |
3374 error("asm statements must end in ';'"); | |
3375 } | |
3376 break; | |
3377 | |
3378 case TOKsemicolon: | |
3379 s = NULL; | |
3380 if (toklist || label) | |
3381 { // Create AsmStatement from list of tokens we've saved | |
3382 s = new AsmStatement(this->loc, toklist); | |
3383 toklist = NULL; | |
3384 ptoklist = &toklist; | |
3385 if (label) | |
3386 { s = new LabelStatement(labelloc, label, s); | |
3387 label = NULL; | |
3388 } | |
3389 statements->push(s); | |
3390 } | |
3391 nextToken(); | |
3392 continue; | |
3393 | |
3394 case TOKeof: | |
3395 /* { */ | |
3396 error("matching '}' expected, not end of file"); | |
3397 break; | |
3398 | |
3399 default: | |
3400 Ldefault: | |
3401 *ptoklist = new Token(); | |
3402 memcpy(*ptoklist, &token, sizeof(Token)); | |
3403 ptoklist = &(*ptoklist)->next; | |
3404 *ptoklist = NULL; | |
3405 | |
3406 nextToken(); | |
3407 continue; | |
3408 } | |
3409 break; | |
3410 } | |
3411 s = new AsmBlockStatement(loc, statements); | |
3412 nextToken(); | |
3413 break; | |
3414 } | |
3415 | |
3416 default: | |
3417 error("found '%s' instead of statement", token.toChars()); | |
3418 goto Lerror; | |
3419 | |
3420 Lerror: | |
3421 while (token.value != TOKrcurly && | |
3422 token.value != TOKsemicolon && | |
3423 token.value != TOKeof) | |
3424 nextToken(); | |
3425 if (token.value == TOKsemicolon) | |
3426 nextToken(); | |
3427 s = NULL; | |
3428 break; | |
3429 } | |
3430 | |
3431 return s; | |
3432 } | |
3433 | |
3434 void Parser::check(enum TOK value) | |
3435 { | |
3436 check(loc, value); | |
3437 } | |
3438 | |
3439 void Parser::check(Loc loc, enum TOK value) | |
3440 { | |
3441 if (token.value != value) | |
3442 error(loc, "found '%s' when expecting '%s'", token.toChars(), Token::toChars(value)); | |
3443 nextToken(); | |
3444 } | |
3445 | |
3446 void Parser::check(enum TOK value, char *string) | |
3447 { | |
3448 if (token.value != value) | |
3449 error("found '%s' when expecting '%s' following '%s'", | |
3450 token.toChars(), Token::toChars(value), string); | |
3451 nextToken(); | |
3452 } | |
3453 | |
3454 /************************************ | |
3455 * Determine if the scanner is sitting on the start of a declaration. | |
3456 * Input: | |
3457 * needId 0 no identifier | |
3458 * 1 identifier optional | |
3459 * 2 must have identifier | |
3460 */ | |
3461 | |
3462 int Parser::isDeclaration(Token *t, int needId, enum TOK endtok, Token **pt) | |
3463 { | |
3464 int haveId = 0; | |
3465 | |
3466 #if DMDV2 | |
3467 if ((t->value == TOKconst || t->value == TOKinvariant) && | |
3468 peek(t)->value != TOKlparen) | |
3469 { /* const type | |
3470 * invariant type | |
3471 */ | |
3472 t = peek(t); | |
3473 } | |
3474 #endif | |
3475 | |
3476 if (!isBasicType(&t)) | |
3477 return FALSE; | |
3478 if (!isDeclarator(&t, &haveId, endtok)) | |
3479 return FALSE; | |
3480 if ( needId == 1 || | |
3481 (needId == 0 && !haveId) || | |
3482 (needId == 2 && haveId)) | |
3483 { if (pt) | |
3484 *pt = t; | |
3485 return TRUE; | |
3486 } | |
3487 else | |
3488 return FALSE; | |
3489 } | |
3490 | |
3491 int Parser::isBasicType(Token **pt) | |
3492 { | |
3493 // This code parallels parseBasicType() | |
3494 Token *t = *pt; | |
3495 Token *t2; | |
3496 int parens; | |
3497 | |
3498 switch (t->value) | |
3499 { | |
3500 CASE_BASIC_TYPES: | |
3501 t = peek(t); | |
3502 break; | |
3503 | |
3504 case TOKidentifier: | |
3505 t = peek(t); | |
3506 if (t->value == TOKnot) | |
3507 { | |
3508 goto L4; | |
3509 } | |
3510 goto L3; | |
3511 while (1) | |
3512 { | |
3513 L2: | |
3514 t = peek(t); | |
3515 L3: | |
3516 if (t->value == TOKdot) | |
3517 { | |
3518 Ldot: | |
3519 t = peek(t); | |
3520 if (t->value != TOKidentifier) | |
3521 goto Lfalse; | |
3522 t = peek(t); | |
3523 if (t->value != TOKnot) | |
3524 goto L3; | |
3525 L4: | |
3526 t = peek(t); | |
3527 if (t->value != TOKlparen) | |
3528 goto Lfalse; | |
3529 if (!skipParens(t, &t)) | |
3530 goto Lfalse; | |
3531 } | |
3532 else | |
3533 break; | |
3534 } | |
3535 break; | |
3536 | |
3537 case TOKdot: | |
3538 goto Ldot; | |
3539 | |
3540 case TOKtypeof: | |
3541 /* typeof(exp).identifier... | |
3542 */ | |
3543 t = peek(t); | |
3544 if (t->value != TOKlparen) | |
3545 goto Lfalse; | |
3546 if (!skipParens(t, &t)) | |
3547 goto Lfalse; | |
3548 goto L2; | |
3549 | |
3550 default: | |
3551 goto Lfalse; | |
3552 } | |
3553 *pt = t; | |
3554 return TRUE; | |
3555 | |
3556 Lfalse: | |
3557 return FALSE; | |
3558 } | |
3559 | |
3560 int Parser::isDeclarator(Token **pt, int *haveId, enum TOK endtok) | |
3561 { // This code parallels parseDeclarator() | |
3562 Token *t = *pt; | |
3563 int parens; | |
3564 | |
3565 //printf("Parser::isDeclarator()\n"); | |
3566 //t->print(); | |
3567 if (t->value == TOKassign) | |
3568 return FALSE; | |
3569 | |
3570 while (1) | |
3571 { | |
3572 parens = FALSE; | |
3573 switch (t->value) | |
3574 { | |
3575 case TOKmul: | |
717
a26b0c5d5942
Merged DMD 1.036.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
710
diff
changeset
|
3576 //case TOKand: |
336 | 3577 t = peek(t); |
3578 continue; | |
3579 | |
3580 case TOKlbracket: | |
3581 t = peek(t); | |
3582 if (t->value == TOKrbracket) | |
3583 { | |
3584 t = peek(t); | |
3585 } | |
3586 else if (isDeclaration(t, 0, TOKrbracket, &t)) | |
3587 { // It's an associative array declaration | |
3588 t = peek(t); | |
3589 } | |
3590 else | |
3591 { | |
3592 // [ expression ] | |
3593 // [ expression .. expression ] | |
3594 if (!isExpression(&t)) | |
3595 return FALSE; | |
3596 if (t->value == TOKslice) | |
3597 { t = peek(t); | |
3598 if (!isExpression(&t)) | |
3599 return FALSE; | |
3600 } | |
3601 if (t->value != TOKrbracket) | |
3602 return FALSE; | |
3603 t = peek(t); | |
3604 } | |
3605 continue; | |
3606 | |
3607 case TOKidentifier: | |
3608 if (*haveId) | |
3609 return FALSE; | |
3610 *haveId = TRUE; | |
3611 t = peek(t); | |
3612 break; | |
3613 | |
3614 case TOKlparen: | |
3615 t = peek(t); | |
3616 | |
3617 if (t->value == TOKrparen) | |
3618 return FALSE; // () is not a declarator | |
3619 | |
3620 /* Regard ( identifier ) as not a declarator | |
3621 * BUG: what about ( *identifier ) in | |
3622 * f(*p)(x); | |
3623 * where f is a class instance with overloaded () ? | |
3624 * Should we just disallow C-style function pointer declarations? | |
3625 */ | |
3626 if (t->value == TOKidentifier) | |
3627 { Token *t2 = peek(t); | |
3628 if (t2->value == TOKrparen) | |
3629 return FALSE; | |
3630 } | |
3631 | |
3632 | |
3633 if (!isDeclarator(&t, haveId, TOKrparen)) | |
3634 return FALSE; | |
3635 t = peek(t); | |
3636 parens = TRUE; | |
3637 break; | |
3638 | |
3639 case TOKdelegate: | |
3640 case TOKfunction: | |
3641 t = peek(t); | |
3642 if (!isParameters(&t)) | |
3643 return FALSE; | |
3644 continue; | |
3645 } | |
3646 break; | |
3647 } | |
3648 | |
3649 while (1) | |
3650 { | |
3651 switch (t->value) | |
3652 { | |
3653 #if CARRAYDECL | |
3654 case TOKlbracket: | |
3655 parens = FALSE; | |
3656 t = peek(t); | |
3657 if (t->value == TOKrbracket) | |
3658 { | |
3659 t = peek(t); | |
3660 } | |
3661 else if (isDeclaration(t, 0, TOKrbracket, &t)) | |
3662 { // It's an associative array declaration | |
3663 t = peek(t); | |
3664 } | |
3665 else | |
3666 { | |
3667 // [ expression ] | |
3668 if (!isExpression(&t)) | |
3669 return FALSE; | |
3670 if (t->value != TOKrbracket) | |
3671 return FALSE; | |
3672 t = peek(t); | |
3673 } | |
3674 continue; | |
3675 #endif | |
3676 | |
3677 case TOKlparen: | |
3678 parens = FALSE; | |
3679 if (!isParameters(&t)) | |
3680 return FALSE; | |
3681 continue; | |
3682 | |
3683 // Valid tokens that follow a declaration | |
3684 case TOKrparen: | |
3685 case TOKrbracket: | |
3686 case TOKassign: | |
3687 case TOKcomma: | |
3688 case TOKsemicolon: | |
3689 case TOKlcurly: | |
3690 case TOKin: | |
3691 // The !parens is to disallow unnecessary parentheses | |
3692 if (!parens && (endtok == TOKreserved || endtok == t->value)) | |
3693 { *pt = t; | |
3694 return TRUE; | |
3695 } | |
3696 return FALSE; | |
3697 | |
3698 default: | |
3699 return FALSE; | |
3700 } | |
3701 } | |
3702 } | |
3703 | |
3704 | |
3705 int Parser::isParameters(Token **pt) | |
3706 { // This code parallels parseParameters() | |
3707 Token *t = *pt; | |
3708 int tmp; | |
3709 | |
3710 //printf("isParameters()\n"); | |
3711 if (t->value != TOKlparen) | |
3712 return FALSE; | |
3713 | |
3714 t = peek(t); | |
3715 while (1) | |
3716 { | |
3717 switch (t->value) | |
3718 { | |
3719 case TOKrparen: | |
3720 break; | |
3721 | |
3722 case TOKdotdotdot: | |
3723 t = peek(t); | |
3724 break; | |
3725 | |
3726 case TOKin: | |
3727 case TOKout: | |
3728 case TOKinout: | |
3729 case TOKref: | |
3730 case TOKlazy: | |
3731 t = peek(t); | |
3732 default: | |
3733 if (!isBasicType(&t)) | |
3734 return FALSE; | |
3735 tmp = FALSE; | |
3736 if (t->value != TOKdotdotdot && | |
3737 !isDeclarator(&t, &tmp, TOKreserved)) | |
3738 return FALSE; | |
3739 if (t->value == TOKassign) | |
3740 { t = peek(t); | |
3741 if (!isExpression(&t)) | |
3742 return FALSE; | |
3743 } | |
3744 if (t->value == TOKdotdotdot) | |
3745 { | |
3746 t = peek(t); | |
3747 break; | |
3748 } | |
3749 if (t->value == TOKcomma) | |
3750 { t = peek(t); | |
3751 continue; | |
3752 } | |
3753 break; | |
3754 } | |
3755 break; | |
3756 } | |
3757 if (t->value != TOKrparen) | |
3758 return FALSE; | |
3759 t = peek(t); | |
3760 *pt = t; | |
3761 return TRUE; | |
3762 } | |
3763 | |
3764 int Parser::isExpression(Token **pt) | |
3765 { | |
3766 // This is supposed to determine if something is an expression. | |
3767 // What it actually does is scan until a closing right bracket | |
3768 // is found. | |
3769 | |
3770 Token *t = *pt; | |
3771 int brnest = 0; | |
3772 int panest = 0; | |
3773 | |
3774 for (;; t = peek(t)) | |
3775 { | |
3776 switch (t->value) | |
3777 { | |
3778 case TOKlbracket: | |
3779 brnest++; | |
3780 continue; | |
3781 | |
3782 case TOKrbracket: | |
3783 if (--brnest >= 0) | |
3784 continue; | |
3785 break; | |
3786 | |
3787 case TOKlparen: | |
3788 panest++; | |
3789 continue; | |
3790 | |
3791 case TOKcomma: | |
3792 if (brnest || panest) | |
3793 continue; | |
3794 break; | |
3795 | |
3796 case TOKrparen: | |
3797 if (--panest >= 0) | |
3798 continue; | |
3799 break; | |
3800 | |
3801 case TOKslice: | |
3802 if (brnest) | |
3803 continue; | |
3804 break; | |
3805 | |
3806 case TOKeof: | |
3807 return FALSE; | |
3808 | |
3809 default: | |
3810 continue; | |
3811 } | |
3812 break; | |
3813 } | |
3814 | |
3815 *pt = t; | |
3816 return TRUE; | |
3817 } | |
3818 | |
3819 /********************************************** | |
3820 * Skip over | |
3821 * instance foo.bar(parameters...) | |
3822 * Output: | |
3823 * if (pt), *pt is set to the token following the closing ) | |
3824 * Returns: | |
3825 * 1 it's valid instance syntax | |
3826 * 0 invalid instance syntax | |
3827 */ | |
3828 | |
3829 int Parser::isTemplateInstance(Token *t, Token **pt) | |
3830 { | |
3831 t = peek(t); | |
3832 if (t->value != TOKdot) | |
3833 { | |
3834 if (t->value != TOKidentifier) | |
3835 goto Lfalse; | |
3836 t = peek(t); | |
3837 } | |
3838 while (t->value == TOKdot) | |
3839 { | |
3840 t = peek(t); | |
3841 if (t->value != TOKidentifier) | |
3842 goto Lfalse; | |
3843 t = peek(t); | |
3844 } | |
3845 if (t->value != TOKlparen) | |
3846 goto Lfalse; | |
3847 | |
3848 // Skip over the template arguments | |
3849 while (1) | |
3850 { | |
3851 while (1) | |
3852 { | |
3853 t = peek(t); | |
3854 switch (t->value) | |
3855 { | |
3856 case TOKlparen: | |
3857 if (!skipParens(t, &t)) | |
3858 goto Lfalse; | |
3859 continue; | |
3860 case TOKrparen: | |
3861 break; | |
3862 case TOKcomma: | |
3863 break; | |
3864 case TOKeof: | |
3865 case TOKsemicolon: | |
3866 goto Lfalse; | |
3867 default: | |
3868 continue; | |
3869 } | |
3870 break; | |
3871 } | |
3872 | |
3873 if (t->value != TOKcomma) | |
3874 break; | |
3875 } | |
3876 if (t->value != TOKrparen) | |
3877 goto Lfalse; | |
3878 t = peek(t); | |
3879 if (pt) | |
3880 *pt = t; | |
3881 return 1; | |
3882 | |
3883 Lfalse: | |
3884 return 0; | |
3885 } | |
3886 | |
3887 /******************************************* | |
3888 * Skip parens, brackets. | |
3889 * Input: | |
3890 * t is on opening ( | |
3891 * Output: | |
3892 * *pt is set to closing token, which is ')' on success | |
3893 * Returns: | |
3894 * !=0 successful | |
3895 * 0 some parsing error | |
3896 */ | |
3897 | |
3898 int Parser::skipParens(Token *t, Token **pt) | |
3899 { | |
3900 int parens = 0; | |
3901 | |
3902 while (1) | |
3903 { | |
3904 switch (t->value) | |
3905 { | |
3906 case TOKlparen: | |
3907 parens++; | |
3908 break; | |
3909 | |
3910 case TOKrparen: | |
3911 parens--; | |
3912 if (parens < 0) | |
3913 goto Lfalse; | |
3914 if (parens == 0) | |
3915 goto Ldone; | |
3916 break; | |
3917 | |
3918 case TOKeof: | |
3919 case TOKsemicolon: | |
3920 goto Lfalse; | |
3921 | |
3922 default: | |
3923 break; | |
3924 } | |
3925 t = peek(t); | |
3926 } | |
3927 | |
3928 Ldone: | |
3929 if (*pt) | |
3930 *pt = t; | |
3931 return 1; | |
3932 | |
3933 Lfalse: | |
3934 return 0; | |
3935 } | |
3936 | |
3937 /********************************* Expression Parser ***************************/ | |
3938 | |
3939 Expression *Parser::parsePrimaryExp() | |
3940 { Expression *e; | |
3941 Type *t; | |
3942 Identifier *id; | |
3943 enum TOK save; | |
3944 Loc loc = this->loc; | |
3945 | |
3946 //printf("parsePrimaryExp(): loc = %d\n", loc.linnum); | |
3947 switch (token.value) | |
3948 { | |
3949 case TOKidentifier: | |
3950 id = token.ident; | |
3951 nextToken(); | |
3952 if (token.value == TOKnot && peek(&token)->value == TOKlparen) | |
3953 { // identifier!(template-argument-list) | |
3954 TemplateInstance *tempinst; | |
3955 | |
3956 tempinst = new TemplateInstance(loc, id); | |
3957 nextToken(); | |
3958 tempinst->tiargs = parseTemplateArgumentList(); | |
3959 e = new ScopeExp(loc, tempinst); | |
3960 } | |
3961 else | |
3962 e = new IdentifierExp(loc, id); | |
3963 break; | |
3964 | |
3965 case TOKdollar: | |
3966 if (!inBrackets) | |
3967 error("'$' is valid only inside [] of index or slice"); | |
3968 e = new DollarExp(loc); | |
3969 nextToken(); | |
3970 break; | |
3971 | |
3972 case TOKdot: | |
3973 // Signal global scope '.' operator with "" identifier | |
3974 e = new IdentifierExp(loc, Id::empty); | |
3975 break; | |
3976 | |
3977 case TOKthis: | |
3978 e = new ThisExp(loc); | |
3979 nextToken(); | |
3980 break; | |
3981 | |
3982 case TOKsuper: | |
3983 e = new SuperExp(loc); | |
3984 nextToken(); | |
3985 break; | |
3986 | |
3987 case TOKint32v: | |
3988 e = new IntegerExp(loc, token.int32value, Type::tint32); | |
3989 nextToken(); | |
3990 break; | |
3991 | |
3992 case TOKuns32v: | |
3993 e = new IntegerExp(loc, token.uns32value, Type::tuns32); | |
3994 nextToken(); | |
3995 break; | |
3996 | |
3997 case TOKint64v: | |
3998 e = new IntegerExp(loc, token.int64value, Type::tint64); | |
3999 nextToken(); | |
4000 break; | |
4001 | |
4002 case TOKuns64v: | |
4003 e = new IntegerExp(loc, token.uns64value, Type::tuns64); | |
4004 nextToken(); | |
4005 break; | |
4006 | |
4007 case TOKfloat32v: | |
4008 e = new RealExp(loc, token.float80value, Type::tfloat32); | |
4009 nextToken(); | |
4010 break; | |
4011 | |
4012 case TOKfloat64v: | |
4013 e = new RealExp(loc, token.float80value, Type::tfloat64); | |
4014 nextToken(); | |
4015 break; | |
4016 | |
4017 case TOKfloat80v: | |
4018 e = new RealExp(loc, token.float80value, Type::tfloat80); | |
4019 nextToken(); | |
4020 break; | |
4021 | |
4022 case TOKimaginary32v: | |
4023 e = new RealExp(loc, token.float80value, Type::timaginary32); | |
4024 nextToken(); | |
4025 break; | |
4026 | |
4027 case TOKimaginary64v: | |
4028 e = new RealExp(loc, token.float80value, Type::timaginary64); | |
4029 nextToken(); | |
4030 break; | |
4031 | |
4032 case TOKimaginary80v: | |
4033 e = new RealExp(loc, token.float80value, Type::timaginary80); | |
4034 nextToken(); | |
4035 break; | |
4036 | |
4037 case TOKnull: | |
4038 e = new NullExp(loc); | |
4039 nextToken(); | |
4040 break; | |
4041 | |
4042 #if DMDV2 | |
4043 case TOKfile: | |
4044 { char *s = loc.filename ? loc.filename : mod->ident->toChars(); | |
4045 e = new StringExp(loc, s, strlen(s), 0); | |
4046 nextToken(); | |
4047 break; | |
4048 } | |
4049 | |
4050 case TOKline: | |
4051 e = new IntegerExp(loc, loc.linnum, Type::tint32); | |
4052 nextToken(); | |
4053 break; | |
4054 #endif | |
4055 | |
4056 case TOKtrue: | |
4057 e = new IntegerExp(loc, 1, Type::tbool); | |
4058 nextToken(); | |
4059 break; | |
4060 | |
4061 case TOKfalse: | |
4062 e = new IntegerExp(loc, 0, Type::tbool); | |
4063 nextToken(); | |
4064 break; | |
4065 | |
4066 case TOKcharv: | |
4067 e = new IntegerExp(loc, token.uns32value, Type::tchar); | |
4068 nextToken(); | |
4069 break; | |
4070 | |
4071 case TOKwcharv: | |
4072 e = new IntegerExp(loc, token.uns32value, Type::twchar); | |
4073 nextToken(); | |
4074 break; | |
4075 | |
4076 case TOKdcharv: | |
4077 e = new IntegerExp(loc, token.uns32value, Type::tdchar); | |
4078 nextToken(); | |
4079 break; | |
4080 | |
4081 case TOKstring: | |
4082 { unsigned char *s; | |
4083 unsigned len; | |
4084 unsigned char postfix; | |
4085 | |
4086 // cat adjacent strings | |
4087 s = token.ustring; | |
4088 len = token.len; | |
4089 postfix = token.postfix; | |
4090 while (1) | |
4091 { | |
4092 nextToken(); | |
4093 if (token.value == TOKstring) | |
4094 { unsigned len1; | |
4095 unsigned len2; | |
4096 unsigned char *s2; | |
4097 | |
4098 if (token.postfix) | |
4099 { if (token.postfix != postfix) | |
4100 error("mismatched string literal postfixes '%c' and '%c'", postfix, token.postfix); | |
4101 postfix = token.postfix; | |
4102 } | |
4103 | |
4104 len1 = len; | |
4105 len2 = token.len; | |
4106 len = len1 + len2; | |
4107 s2 = (unsigned char *)mem.malloc((len + 1) * sizeof(unsigned char)); | |
4108 memcpy(s2, s, len1 * sizeof(unsigned char)); | |
4109 memcpy(s2 + len1, token.ustring, (len2 + 1) * sizeof(unsigned char)); | |
4110 s = s2; | |
4111 } | |
4112 else | |
4113 break; | |
4114 } | |
4115 e = new StringExp(loc, s, len, postfix); | |
4116 break; | |
4117 } | |
4118 | |
4119 CASE_BASIC_TYPES_X(t): | |
4120 nextToken(); | |
4121 L1: | |
4122 check(TOKdot, t->toChars()); | |
4123 if (token.value != TOKidentifier) | |
4124 { error("found '%s' when expecting identifier following '%s.'", token.toChars(), t->toChars()); | |
4125 goto Lerr; | |
4126 } | |
4127 e = new TypeDotIdExp(loc, t, token.ident); | |
4128 nextToken(); | |
4129 break; | |
4130 | |
4131 case TOKtypeof: | |
4132 { Expression *exp; | |
4133 | |
4134 nextToken(); | |
4135 check(TOKlparen); | |
4136 exp = parseExpression(); | |
4137 check(TOKrparen); | |
4138 t = new TypeTypeof(loc, exp); | |
4139 e = new TypeExp(loc, t); | |
4140 break; | |
4141 } | |
4142 | |
4143 case TOKtypeid: | |
4144 { Type *t; | |
4145 | |
4146 nextToken(); | |
4147 check(TOKlparen, "typeid"); | |
4148 t = parseBasicType(); | |
4149 t = parseDeclarator(t,NULL); // ( type ) | |
4150 check(TOKrparen); | |
4151 e = new TypeidExp(loc, t); | |
4152 break; | |
4153 } | |
4154 | |
4155 #if DMDV2 | |
4156 case TOKtraits: | |
4157 { /* __traits(identifier, args...) | |
4158 */ | |
4159 Identifier *ident; | |
4160 Objects *args = NULL; | |
4161 | |
4162 nextToken(); | |
4163 check(TOKlparen); | |
4164 if (token.value != TOKidentifier) | |
4165 { error("__traits(identifier, args...) expected"); | |
4166 goto Lerr; | |
4167 } | |
4168 ident = token.ident; | |
4169 nextToken(); | |
4170 if (token.value == TOKcomma) | |
4171 args = parseTemplateArgumentList2(); // __traits(identifier, args...) | |
4172 else | |
4173 check(TOKrparen); // __traits(identifier) | |
4174 | |
4175 e = new TraitsExp(loc, ident, args); | |
4176 break; | |
4177 } | |
4178 #endif | |
4179 | |
4180 case TOKis: | |
4181 { Type *targ; | |
4182 Identifier *ident = NULL; | |
4183 Type *tspec = NULL; | |
4184 enum TOK tok = TOKreserved; | |
4185 enum TOK tok2 = TOKreserved; | |
4186 Loc loc = this->loc; | |
4187 | |
4188 nextToken(); | |
4189 if (token.value == TOKlparen) | |
4190 { | |
4191 nextToken(); | |
4192 targ = parseBasicType(); | |
4193 targ = parseDeclarator(targ, &ident); | |
4194 if (token.value == TOKcolon || token.value == TOKequal) | |
4195 { | |
4196 tok = token.value; | |
4197 nextToken(); | |
4198 if (tok == TOKequal && | |
4199 (token.value == TOKtypedef || | |
4200 token.value == TOKstruct || | |
4201 token.value == TOKunion || | |
4202 token.value == TOKclass || | |
4203 token.value == TOKsuper || | |
4204 token.value == TOKenum || | |
4205 token.value == TOKinterface || | |
4206 token.value == TOKfunction || | |
4207 token.value == TOKdelegate || | |
4208 token.value == TOKreturn)) | |
4209 { | |
4210 tok2 = token.value; | |
4211 nextToken(); | |
4212 } | |
4213 else | |
4214 { | |
4215 tspec = parseBasicType(); | |
4216 tspec = parseDeclarator(tspec, NULL); | |
4217 } | |
4218 } | |
4219 check(TOKrparen); | |
4220 } | |
4221 else | |
4222 { error("(type identifier : specialization) expected following is"); | |
4223 goto Lerr; | |
4224 } | |
4225 e = new IsExp(loc, targ, ident, tok, tspec, tok2); | |
4226 break; | |
4227 } | |
4228 | |
4229 case TOKassert: | |
4230 { Expression *msg = NULL; | |
4231 | |
4232 nextToken(); | |
4233 check(TOKlparen, "assert"); | |
4234 e = parseAssignExp(); | |
4235 if (token.value == TOKcomma) | |
4236 { nextToken(); | |
4237 msg = parseAssignExp(); | |
4238 } | |
4239 check(TOKrparen); | |
4240 e = new AssertExp(loc, e, msg); | |
4241 break; | |
4242 } | |
4243 | |
4244 case TOKmixin: | |
4245 { | |
4246 nextToken(); | |
4247 check(TOKlparen, "mixin"); | |
4248 e = parseAssignExp(); | |
4249 check(TOKrparen); | |
4250 e = new CompileExp(loc, e); | |
4251 break; | |
4252 } | |
4253 | |
4254 case TOKimport: | |
4255 { | |
4256 nextToken(); | |
4257 check(TOKlparen, "import"); | |
4258 e = parseAssignExp(); | |
4259 check(TOKrparen); | |
4260 e = new FileExp(loc, e); | |
4261 break; | |
4262 } | |
4263 | |
4264 case TOKlparen: | |
4265 if (peekPastParen(&token)->value == TOKlcurly) | |
4266 { // (arguments) { statements... } | |
4267 save = TOKdelegate; | |
4268 goto case_delegate; | |
4269 } | |
4270 // ( expression ) | |
4271 nextToken(); | |
4272 e = parseExpression(); | |
4273 check(loc, TOKrparen); | |
4274 break; | |
4275 | |
4276 case TOKlbracket: | |
4277 { /* Parse array literals and associative array literals: | |
4278 * [ value, value, value ... ] | |
4279 * [ key:value, key:value, key:value ... ] | |
4280 */ | |
4281 Expressions *values = new Expressions(); | |
4282 Expressions *keys = NULL; | |
4283 | |
4284 nextToken(); | |
4285 if (token.value != TOKrbracket) | |
4286 { | |
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
4287 while (token.value != TOKeof) |
336 | 4288 { |
4289 Expression *e = parseAssignExp(); | |
4290 if (token.value == TOKcolon && (keys || values->dim == 0)) | |
4291 { nextToken(); | |
4292 if (!keys) | |
4293 keys = new Expressions(); | |
4294 keys->push(e); | |
4295 e = parseAssignExp(); | |
4296 } | |
4297 else if (keys) | |
4298 { error("'key:value' expected for associative array literal"); | |
4299 delete keys; | |
4300 keys = NULL; | |
4301 } | |
4302 values->push(e); | |
4303 if (token.value == TOKrbracket) | |
4304 break; | |
4305 check(TOKcomma); | |
4306 } | |
4307 } | |
4308 check(TOKrbracket); | |
4309 | |
4310 if (keys) | |
4311 e = new AssocArrayLiteralExp(loc, keys, values); | |
4312 else | |
4313 e = new ArrayLiteralExp(loc, values); | |
4314 break; | |
4315 } | |
4316 | |
4317 case TOKlcurly: | |
4318 // { statements... } | |
4319 save = TOKdelegate; | |
4320 goto case_delegate; | |
4321 | |
4322 case TOKfunction: | |
4323 case TOKdelegate: | |
4324 save = token.value; | |
4325 nextToken(); | |
4326 case_delegate: | |
4327 { | |
4328 /* function type(parameters) { body } | |
4329 * delegate type(parameters) { body } | |
4330 */ | |
4331 Arguments *arguments; | |
4332 int varargs; | |
4333 FuncLiteralDeclaration *fd; | |
4334 Type *t; | |
4335 | |
4336 if (token.value == TOKlcurly) | |
4337 { | |
4338 t = NULL; | |
4339 varargs = 0; | |
4340 arguments = new Arguments(); | |
4341 } | |
4342 else | |
4343 { | |
4344 if (token.value == TOKlparen) | |
4345 t = NULL; | |
4346 else | |
4347 { | |
4348 t = parseBasicType(); | |
4349 t = parseBasicType2(t); // function return type | |
4350 } | |
4351 arguments = parseParameters(&varargs); | |
4352 } | |
4353 t = new TypeFunction(arguments, t, varargs, linkage); | |
4354 fd = new FuncLiteralDeclaration(loc, 0, t, save, NULL); | |
4355 parseContracts(fd); | |
4356 e = new FuncExp(loc, fd); | |
4357 break; | |
4358 } | |
4359 | |
4360 default: | |
4361 error("expression expected, not '%s'", token.toChars()); | |
4362 Lerr: | |
4363 // Anything for e, as long as it's not NULL | |
4364 e = new IntegerExp(loc, 0, Type::tint32); | |
4365 nextToken(); | |
4366 break; | |
4367 } | |
4368 return parsePostExp(e); | |
4369 } | |
4370 | |
4371 Expression *Parser::parsePostExp(Expression *e) | |
4372 { | |
4373 Loc loc; | |
4374 | |
4375 while (1) | |
4376 { | |
4377 loc = this->loc; | |
4378 switch (token.value) | |
4379 { | |
4380 case TOKdot: | |
4381 nextToken(); | |
4382 if (token.value == TOKidentifier) | |
4383 { Identifier *id = token.ident; | |
4384 | |
4385 nextToken(); | |
4386 if (token.value == TOKnot && peek(&token)->value == TOKlparen) | |
4387 { // identifier!(template-argument-list) | |
4388 TemplateInstance *tempinst; | |
4389 | |
4390 tempinst = new TemplateInstance(loc, id); | |
4391 nextToken(); | |
4392 tempinst->tiargs = parseTemplateArgumentList(); | |
4393 e = new DotTemplateInstanceExp(loc, e, tempinst); | |
4394 } | |
4395 else | |
4396 e = new DotIdExp(loc, e, id); | |
4397 continue; | |
4398 } | |
4399 else if (token.value == TOKnew) | |
4400 { | |
4401 e = parseNewExp(e); | |
4402 continue; | |
4403 } | |
4404 else | |
4405 error("identifier expected following '.', not '%s'", token.toChars()); | |
4406 break; | |
4407 | |
4408 case TOKplusplus: | |
4409 e = new PostExp(TOKplusplus, loc, e); | |
4410 break; | |
4411 | |
4412 case TOKminusminus: | |
4413 e = new PostExp(TOKminusminus, loc, e); | |
4414 break; | |
4415 | |
4416 case TOKlparen: | |
4417 e = new CallExp(loc, e, parseArguments()); | |
4418 continue; | |
4419 | |
4420 case TOKlbracket: | |
4421 { // array dereferences: | |
4422 // array[index] | |
4423 // array[] | |
4424 // array[lwr .. upr] | |
4425 Expression *index; | |
4426 Expression *upr; | |
4427 | |
4428 inBrackets++; | |
4429 nextToken(); | |
4430 if (token.value == TOKrbracket) | |
4431 { // array[] | |
4432 e = new SliceExp(loc, e, NULL, NULL); | |
4433 nextToken(); | |
4434 } | |
4435 else | |
4436 { | |
4437 index = parseAssignExp(); | |
4438 if (token.value == TOKslice) | |
4439 { // array[lwr .. upr] | |
4440 nextToken(); | |
4441 upr = parseAssignExp(); | |
4442 e = new SliceExp(loc, e, index, upr); | |
4443 } | |
4444 else | |
4445 { // array[index, i2, i3, i4, ...] | |
4446 Expressions *arguments = new Expressions(); | |
4447 arguments->push(index); | |
4448 if (token.value == TOKcomma) | |
4449 { | |
4450 nextToken(); | |
4451 while (1) | |
4452 { Expression *arg; | |
4453 | |
4454 arg = parseAssignExp(); | |
4455 arguments->push(arg); | |
4456 if (token.value == TOKrbracket) | |
4457 break; | |
4458 check(TOKcomma); | |
4459 } | |
4460 } | |
4461 e = new ArrayExp(loc, e, arguments); | |
4462 } | |
4463 check(TOKrbracket); | |
4464 inBrackets--; | |
4465 } | |
4466 continue; | |
4467 } | |
4468 | |
4469 default: | |
4470 return e; | |
4471 } | |
4472 nextToken(); | |
4473 } | |
4474 } | |
4475 | |
4476 Expression *Parser::parseUnaryExp() | |
4477 { Expression *e; | |
4478 Loc loc = this->loc; | |
4479 | |
4480 switch (token.value) | |
4481 { | |
4482 case TOKand: | |
4483 nextToken(); | |
4484 e = parseUnaryExp(); | |
4485 e = new AddrExp(loc, e); | |
4486 break; | |
4487 | |
4488 case TOKplusplus: | |
4489 nextToken(); | |
4490 e = parseUnaryExp(); | |
4491 e = new AddAssignExp(loc, e, new IntegerExp(loc, 1, Type::tint32)); | |
4492 break; | |
4493 | |
4494 case TOKminusminus: | |
4495 nextToken(); | |
4496 e = parseUnaryExp(); | |
4497 e = new MinAssignExp(loc, e, new IntegerExp(loc, 1, Type::tint32)); | |
4498 break; | |
4499 | |
4500 case TOKmul: | |
4501 nextToken(); | |
4502 e = parseUnaryExp(); | |
4503 e = new PtrExp(loc, e); | |
4504 break; | |
4505 | |
4506 case TOKmin: | |
4507 nextToken(); | |
4508 e = parseUnaryExp(); | |
4509 e = new NegExp(loc, e); | |
4510 break; | |
4511 | |
4512 case TOKadd: | |
4513 nextToken(); | |
4514 e = parseUnaryExp(); | |
4515 e = new UAddExp(loc, e); | |
4516 break; | |
4517 | |
4518 case TOKnot: | |
4519 nextToken(); | |
4520 e = parseUnaryExp(); | |
4521 e = new NotExp(loc, e); | |
4522 break; | |
4523 | |
4524 case TOKtilde: | |
4525 nextToken(); | |
4526 e = parseUnaryExp(); | |
4527 e = new ComExp(loc, e); | |
4528 break; | |
4529 | |
4530 case TOKdelete: | |
4531 nextToken(); | |
4532 e = parseUnaryExp(); | |
4533 e = new DeleteExp(loc, e); | |
4534 break; | |
4535 | |
4536 case TOKnew: | |
4537 e = parseNewExp(NULL); | |
4538 break; | |
4539 | |
4540 case TOKcast: // cast(type) expression | |
4541 { Type *t; | |
4542 | |
4543 nextToken(); | |
4544 check(TOKlparen); | |
4545 t = parseBasicType(); | |
4546 t = parseDeclarator(t,NULL); // ( type ) | |
4547 check(TOKrparen); | |
4548 | |
4549 e = parseUnaryExp(); | |
4550 e = new CastExp(loc, e, t); | |
4551 break; | |
4552 } | |
4553 | |
4554 case TOKlparen: | |
4555 { Token *tk; | |
4556 | |
4557 tk = peek(&token); | |
4558 #if CCASTSYNTAX | |
4559 // If cast | |
4560 if (isDeclaration(tk, 0, TOKrparen, &tk)) | |
4561 { | |
4562 tk = peek(tk); // skip over right parenthesis | |
4563 switch (tk->value) | |
4564 { | |
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
4565 case TOKnot: |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
4566 tk = peek(tk); |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
4567 if (tk->value == TOKis) // !is |
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
4568 break; |
336 | 4569 case TOKdot: |
4570 case TOKplusplus: | |
4571 case TOKminusminus: | |
4572 case TOKdelete: | |
4573 case TOKnew: | |
4574 case TOKlparen: | |
4575 case TOKidentifier: | |
4576 case TOKthis: | |
4577 case TOKsuper: | |
4578 case TOKint32v: | |
4579 case TOKuns32v: | |
4580 case TOKint64v: | |
4581 case TOKuns64v: | |
4582 case TOKfloat32v: | |
4583 case TOKfloat64v: | |
4584 case TOKfloat80v: | |
4585 case TOKimaginary32v: | |
4586 case TOKimaginary64v: | |
4587 case TOKimaginary80v: | |
4588 case TOKnull: | |
4589 case TOKtrue: | |
4590 case TOKfalse: | |
4591 case TOKcharv: | |
4592 case TOKwcharv: | |
4593 case TOKdcharv: | |
4594 case TOKstring: | |
4595 #if 0 | |
4596 case TOKtilde: | |
4597 case TOKand: | |
4598 case TOKmul: | |
4599 case TOKmin: | |
4600 case TOKadd: | |
4601 #endif | |
4602 case TOKfunction: | |
4603 case TOKdelegate: | |
4604 case TOKtypeof: | |
4605 #if DMDV2 | |
4606 case TOKfile: | |
4607 case TOKline: | |
4608 #endif | |
4609 CASE_BASIC_TYPES: // (type)int.size | |
4610 { // (type) una_exp | |
4611 Type *t; | |
4612 | |
4613 nextToken(); | |
4614 t = parseBasicType(); | |
4615 t = parseDeclarator(t,NULL); | |
4616 check(TOKrparen); | |
4617 | |
4618 // if .identifier | |
4619 if (token.value == TOKdot) | |
4620 { | |
4621 nextToken(); | |
4622 if (token.value != TOKidentifier) | |
4623 { error("Identifier expected following (type)."); | |
4624 return NULL; | |
4625 } | |
4626 e = new TypeDotIdExp(loc, t, token.ident); | |
4627 nextToken(); | |
4628 e = parsePostExp(e); | |
4629 } | |
4630 else | |
4631 { | |
4632 e = parseUnaryExp(); | |
4633 e = new CastExp(loc, e, t); | |
4634 error("C style cast illegal, use %s", e->toChars()); | |
4635 } | |
4636 return e; | |
4637 } | |
4638 } | |
4639 } | |
4640 #endif | |
4641 e = parsePrimaryExp(); | |
4642 break; | |
4643 } | |
4644 default: | |
4645 e = parsePrimaryExp(); | |
4646 break; | |
4647 } | |
4648 assert(e); | |
4649 return e; | |
4650 } | |
4651 | |
4652 Expression *Parser::parseMulExp() | |
4653 { Expression *e; | |
4654 Expression *e2; | |
4655 Loc loc = this->loc; | |
4656 | |
4657 e = parseUnaryExp(); | |
4658 while (1) | |
4659 { | |
4660 switch (token.value) | |
4661 { | |
4662 case TOKmul: nextToken(); e2 = parseUnaryExp(); e = new MulExp(loc,e,e2); continue; | |
4663 case TOKdiv: nextToken(); e2 = parseUnaryExp(); e = new DivExp(loc,e,e2); continue; | |
4664 case TOKmod: nextToken(); e2 = parseUnaryExp(); e = new ModExp(loc,e,e2); continue; | |
4665 | |
4666 default: | |
4667 break; | |
4668 } | |
4669 break; | |
4670 } | |
4671 return e; | |
4672 } | |
4673 | |
4674 Expression *Parser::parseAddExp() | |
4675 { Expression *e; | |
4676 Expression *e2; | |
4677 Loc loc = this->loc; | |
4678 | |
4679 e = parseMulExp(); | |
4680 while (1) | |
4681 { | |
4682 switch (token.value) | |
4683 { | |
4684 case TOKadd: nextToken(); e2 = parseMulExp(); e = new AddExp(loc,e,e2); continue; | |
4685 case TOKmin: nextToken(); e2 = parseMulExp(); e = new MinExp(loc,e,e2); continue; | |
4686 case TOKtilde: nextToken(); e2 = parseMulExp(); e = new CatExp(loc,e,e2); continue; | |
4687 | |
4688 default: | |
4689 break; | |
4690 } | |
4691 break; | |
4692 } | |
4693 return e; | |
4694 } | |
4695 | |
4696 Expression *Parser::parseShiftExp() | |
4697 { Expression *e; | |
4698 Expression *e2; | |
4699 Loc loc = this->loc; | |
4700 | |
4701 e = parseAddExp(); | |
4702 while (1) | |
4703 { | |
4704 switch (token.value) | |
4705 { | |
4706 case TOKshl: nextToken(); e2 = parseAddExp(); e = new ShlExp(loc,e,e2); continue; | |
4707 case TOKshr: nextToken(); e2 = parseAddExp(); e = new ShrExp(loc,e,e2); continue; | |
4708 case TOKushr: nextToken(); e2 = parseAddExp(); e = new UshrExp(loc,e,e2); continue; | |
4709 | |
4710 default: | |
4711 break; | |
4712 } | |
4713 break; | |
4714 } | |
4715 return e; | |
4716 } | |
4717 | |
4718 Expression *Parser::parseRelExp() | |
4719 { Expression *e; | |
4720 Expression *e2; | |
4721 enum TOK op; | |
4722 Loc loc = this->loc; | |
4723 | |
4724 e = parseShiftExp(); | |
4725 while (1) | |
4726 { | |
4727 switch (token.value) | |
4728 { | |
4729 case TOKlt: | |
4730 case TOKle: | |
4731 case TOKgt: | |
4732 case TOKge: | |
4733 case TOKunord: | |
4734 case TOKlg: | |
4735 case TOKleg: | |
4736 case TOKule: | |
4737 case TOKul: | |
4738 case TOKuge: | |
4739 case TOKug: | |
4740 case TOKue: | |
4741 op = token.value; | |
4742 nextToken(); | |
4743 e2 = parseShiftExp(); | |
4744 e = new CmpExp(op, loc, e, e2); | |
4745 continue; | |
4746 | |
4747 case TOKin: | |
4748 nextToken(); | |
4749 e2 = parseShiftExp(); | |
4750 e = new InExp(loc, e, e2); | |
4751 continue; | |
4752 | |
4753 default: | |
4754 break; | |
4755 } | |
4756 break; | |
4757 } | |
4758 return e; | |
4759 } | |
4760 | |
4761 Expression *Parser::parseEqualExp() | |
4762 { Expression *e; | |
4763 Expression *e2; | |
4764 Token *t; | |
4765 Loc loc = this->loc; | |
4766 | |
4767 e = parseRelExp(); | |
4768 while (1) | |
4769 { enum TOK value = token.value; | |
4770 | |
4771 switch (value) | |
4772 { | |
4773 case TOKequal: | |
4774 case TOKnotequal: | |
4775 nextToken(); | |
4776 e2 = parseRelExp(); | |
4777 e = new EqualExp(value, loc, e, e2); | |
4778 continue; | |
4779 | |
4780 case TOKidentity: | |
4781 error("'===' is no longer legal, use 'is' instead"); | |
4782 goto L1; | |
4783 | |
4784 case TOKnotidentity: | |
4785 error("'!==' is no longer legal, use '!is' instead"); | |
4786 goto L1; | |
4787 | |
4788 case TOKis: | |
4789 value = TOKidentity; | |
4790 goto L1; | |
4791 | |
4792 case TOKnot: | |
4793 // Attempt to identify '!is' | |
4794 t = peek(&token); | |
4795 if (t->value != TOKis) | |
4796 break; | |
4797 nextToken(); | |
4798 value = TOKnotidentity; | |
4799 goto L1; | |
4800 | |
4801 L1: | |
4802 nextToken(); | |
4803 e2 = parseRelExp(); | |
4804 e = new IdentityExp(value, loc, e, e2); | |
4805 continue; | |
4806 | |
4807 default: | |
4808 break; | |
4809 } | |
4810 break; | |
4811 } | |
4812 return e; | |
4813 } | |
4814 | |
4815 Expression *Parser::parseCmpExp() | |
4816 { Expression *e; | |
4817 Expression *e2; | |
4818 Token *t; | |
4819 Loc loc = this->loc; | |
4820 | |
4821 e = parseShiftExp(); | |
4822 enum TOK op = token.value; | |
4823 | |
4824 switch (op) | |
4825 { | |
4826 case TOKequal: | |
4827 case TOKnotequal: | |
4828 nextToken(); | |
4829 e2 = parseShiftExp(); | |
4830 e = new EqualExp(op, loc, e, e2); | |
4831 break; | |
4832 | |
4833 case TOKis: | |
4834 op = TOKidentity; | |
4835 goto L1; | |
4836 | |
4837 case TOKnot: | |
4838 // Attempt to identify '!is' | |
4839 t = peek(&token); | |
4840 if (t->value != TOKis) | |
4841 break; | |
4842 nextToken(); | |
4843 op = TOKnotidentity; | |
4844 goto L1; | |
4845 | |
4846 L1: | |
4847 nextToken(); | |
4848 e2 = parseShiftExp(); | |
4849 e = new IdentityExp(op, loc, e, e2); | |
4850 break; | |
4851 | |
4852 case TOKlt: | |
4853 case TOKle: | |
4854 case TOKgt: | |
4855 case TOKge: | |
4856 case TOKunord: | |
4857 case TOKlg: | |
4858 case TOKleg: | |
4859 case TOKule: | |
4860 case TOKul: | |
4861 case TOKuge: | |
4862 case TOKug: | |
4863 case TOKue: | |
4864 nextToken(); | |
4865 e2 = parseShiftExp(); | |
4866 e = new CmpExp(op, loc, e, e2); | |
4867 break; | |
4868 | |
4869 case TOKin: | |
4870 nextToken(); | |
4871 e2 = parseShiftExp(); | |
4872 e = new InExp(loc, e, e2); | |
4873 break; | |
4874 | |
4875 default: | |
4876 break; | |
4877 } | |
4878 return e; | |
4879 } | |
4880 | |
4881 Expression *Parser::parseAndExp() | |
4882 { Expression *e; | |
4883 Expression *e2; | |
4884 Loc loc = this->loc; | |
4885 | |
4886 if (global.params.Dversion == 1) | |
4887 { | |
4888 e = parseEqualExp(); | |
4889 while (token.value == TOKand) | |
4890 { | |
4891 nextToken(); | |
4892 e2 = parseEqualExp(); | |
4893 e = new AndExp(loc,e,e2); | |
4894 loc = this->loc; | |
4895 } | |
4896 } | |
4897 else | |
4898 { | |
4899 e = parseCmpExp(); | |
4900 while (token.value == TOKand) | |
4901 { | |
4902 nextToken(); | |
4903 e2 = parseCmpExp(); | |
4904 e = new AndExp(loc,e,e2); | |
4905 loc = this->loc; | |
4906 } | |
4907 } | |
4908 return e; | |
4909 } | |
4910 | |
4911 Expression *Parser::parseXorExp() | |
4912 { Expression *e; | |
4913 Expression *e2; | |
4914 Loc loc = this->loc; | |
4915 | |
4916 e = parseAndExp(); | |
4917 while (token.value == TOKxor) | |
4918 { | |
4919 nextToken(); | |
4920 e2 = parseAndExp(); | |
4921 e = new XorExp(loc, e, e2); | |
4922 } | |
4923 return e; | |
4924 } | |
4925 | |
4926 Expression *Parser::parseOrExp() | |
4927 { Expression *e; | |
4928 Expression *e2; | |
4929 Loc loc = this->loc; | |
4930 | |
4931 e = parseXorExp(); | |
4932 while (token.value == TOKor) | |
4933 { | |
4934 nextToken(); | |
4935 e2 = parseXorExp(); | |
4936 e = new OrExp(loc, e, e2); | |
4937 } | |
4938 return e; | |
4939 } | |
4940 | |
4941 Expression *Parser::parseAndAndExp() | |
4942 { Expression *e; | |
4943 Expression *e2; | |
4944 Loc loc = this->loc; | |
4945 | |
4946 e = parseOrExp(); | |
4947 while (token.value == TOKandand) | |
4948 { | |
4949 nextToken(); | |
4950 e2 = parseOrExp(); | |
4951 e = new AndAndExp(loc, e, e2); | |
4952 } | |
4953 return e; | |
4954 } | |
4955 | |
4956 Expression *Parser::parseOrOrExp() | |
4957 { Expression *e; | |
4958 Expression *e2; | |
4959 Loc loc = this->loc; | |
4960 | |
4961 e = parseAndAndExp(); | |
4962 while (token.value == TOKoror) | |
4963 { | |
4964 nextToken(); | |
4965 e2 = parseAndAndExp(); | |
4966 e = new OrOrExp(loc, e, e2); | |
4967 } | |
4968 return e; | |
4969 } | |
4970 | |
4971 Expression *Parser::parseCondExp() | |
4972 { Expression *e; | |
4973 Expression *e1; | |
4974 Expression *e2; | |
4975 Loc loc = this->loc; | |
4976 | |
4977 e = parseOrOrExp(); | |
4978 if (token.value == TOKquestion) | |
4979 { | |
4980 nextToken(); | |
4981 e1 = parseExpression(); | |
4982 check(TOKcolon); | |
4983 e2 = parseCondExp(); | |
4984 e = new CondExp(loc, e, e1, e2); | |
4985 } | |
4986 return e; | |
4987 } | |
4988 | |
4989 Expression *Parser::parseAssignExp() | |
4990 { Expression *e; | |
4991 Expression *e2; | |
4992 Loc loc; | |
4993 | |
4994 e = parseCondExp(); | |
4995 while (1) | |
4996 { | |
4997 loc = this->loc; | |
4998 switch (token.value) | |
4999 { | |
5000 #define X(tok,ector) \ | |
5001 case tok: nextToken(); e2 = parseAssignExp(); e = new ector(loc,e,e2); continue; | |
5002 | |
5003 X(TOKassign, AssignExp); | |
5004 X(TOKaddass, AddAssignExp); | |
5005 X(TOKminass, MinAssignExp); | |
5006 X(TOKmulass, MulAssignExp); | |
5007 X(TOKdivass, DivAssignExp); | |
5008 X(TOKmodass, ModAssignExp); | |
5009 X(TOKandass, AndAssignExp); | |
5010 X(TOKorass, OrAssignExp); | |
5011 X(TOKxorass, XorAssignExp); | |
5012 X(TOKshlass, ShlAssignExp); | |
5013 X(TOKshrass, ShrAssignExp); | |
5014 X(TOKushrass, UshrAssignExp); | |
5015 X(TOKcatass, CatAssignExp); | |
5016 | |
5017 #undef X | |
5018 default: | |
5019 break; | |
5020 } | |
5021 break; | |
5022 } | |
5023 return e; | |
5024 } | |
5025 | |
5026 Expression *Parser::parseExpression() | |
5027 { Expression *e; | |
5028 Expression *e2; | |
5029 Loc loc = this->loc; | |
5030 | |
5031 //printf("Parser::parseExpression() loc = %d\n", loc.linnum); | |
5032 e = parseAssignExp(); | |
5033 while (token.value == TOKcomma) | |
5034 { | |
5035 nextToken(); | |
5036 e2 = parseAssignExp(); | |
5037 e = new CommaExp(loc, e, e2); | |
5038 loc = this->loc; | |
5039 } | |
5040 return e; | |
5041 } | |
5042 | |
5043 | |
5044 /************************* | |
5045 * Collect argument list. | |
5046 * Assume current token is '(' or '['. | |
5047 */ | |
5048 | |
5049 Expressions *Parser::parseArguments() | |
5050 { // function call | |
5051 Expressions *arguments; | |
5052 Expression *arg; | |
5053 enum TOK endtok; | |
5054 | |
5055 arguments = new Expressions(); | |
5056 if (token.value == TOKlbracket) | |
5057 endtok = TOKrbracket; | |
5058 else | |
5059 endtok = TOKrparen; | |
5060 | |
5061 { | |
5062 nextToken(); | |
5063 if (token.value != endtok) | |
5064 { | |
5065 while (1) | |
5066 { | |
5067 arg = parseAssignExp(); | |
5068 arguments->push(arg); | |
5069 if (token.value == endtok) | |
5070 break; | |
5071 check(TOKcomma); | |
5072 } | |
5073 } | |
5074 check(endtok); | |
5075 } | |
5076 return arguments; | |
5077 } | |
5078 | |
5079 /******************************************* | |
5080 */ | |
5081 | |
5082 Expression *Parser::parseNewExp(Expression *thisexp) | |
5083 { Type *t; | |
5084 Expressions *newargs; | |
5085 Expressions *arguments = NULL; | |
5086 Expression *e; | |
5087 Loc loc = this->loc; | |
5088 | |
5089 nextToken(); | |
5090 newargs = NULL; | |
5091 if (token.value == TOKlparen) | |
5092 { | |
5093 newargs = parseArguments(); | |
5094 } | |
5095 | |
5096 // An anonymous nested class starts with "class" | |
5097 if (token.value == TOKclass) | |
5098 { | |
5099 nextToken(); | |
5100 if (token.value == TOKlparen) | |
5101 arguments = parseArguments(); | |
5102 | |
5103 BaseClasses *baseclasses = NULL; | |
5104 if (token.value != TOKlcurly) | |
5105 baseclasses = parseBaseClasses(); | |
5106 | |
5107 Identifier *id = NULL; | |
5108 ClassDeclaration *cd = new ClassDeclaration(loc, id, baseclasses); | |
5109 | |
5110 if (token.value != TOKlcurly) | |
5111 { error("{ members } expected for anonymous class"); | |
5112 cd->members = NULL; | |
5113 } | |
5114 else | |
5115 { | |
5116 nextToken(); | |
5117 Array *decl = parseDeclDefs(0); | |
5118 if (token.value != TOKrcurly) | |
5119 error("class member expected"); | |
5120 nextToken(); | |
5121 cd->members = decl; | |
5122 } | |
5123 | |
5124 e = new NewAnonClassExp(loc, thisexp, newargs, cd, arguments); | |
5125 | |
5126 return e; | |
5127 } | |
5128 | |
5129 #if LTORARRAYDECL | |
5130 t = parseBasicType(); | |
5131 t = parseBasicType2(t); | |
5132 if (t->ty == Taarray) | |
5133 { | |
5134 Type *index = ((TypeAArray *)t)->index; | |
5135 | |
5136 Expression *e = index->toExpression(); | |
5137 if (e) | |
5138 { arguments = new Expressions(); | |
5139 arguments->push(e); | |
5140 t = new TypeDArray(t->next); | |
5141 } | |
5142 else | |
5143 { | |
5144 error("need size of rightmost array, not type %s", index->toChars()); | |
5145 return new NullExp(loc); | |
5146 } | |
5147 } | |
5148 else if (t->ty == Tsarray) | |
5149 { | |
5150 TypeSArray *tsa = (TypeSArray *)t; | |
5151 Expression *e = tsa->dim; | |
5152 | |
5153 arguments = new Expressions(); | |
5154 arguments->push(e); | |
5155 t = new TypeDArray(t->next); | |
5156 } | |
5157 else if (token.value == TOKlparen) | |
5158 { | |
5159 arguments = parseArguments(); | |
5160 } | |
5161 #else | |
5162 t = parseBasicType(); | |
5163 while (token.value == TOKmul) | |
5164 { t = new TypePointer(t); | |
5165 nextToken(); | |
5166 } | |
5167 if (token.value == TOKlbracket) | |
5168 { | |
5169 Expression *e; | |
5170 | |
5171 nextToken(); | |
5172 e = parseAssignExp(); | |
5173 arguments = new Array(); | |
5174 arguments->push(e); | |
5175 check(TOKrbracket); | |
5176 t = parseDeclarator(t, NULL); | |
5177 t = new TypeDArray(t); | |
5178 } | |
5179 else if (token.value == TOKlparen) | |
5180 arguments = parseArguments(); | |
5181 #endif | |
5182 e = new NewExp(loc, thisexp, newargs, t, arguments); | |
5183 return e; | |
5184 } | |
5185 | |
5186 /********************************************** | |
5187 */ | |
5188 | |
5189 void Parser::addComment(Dsymbol *s, unsigned char *blockComment) | |
5190 { | |
5191 s->addComment(combineComments(blockComment, token.lineComment)); | |
658
50383e476c7e
Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
5192 token.lineComment = NULL; |
336 | 5193 } |
5194 | |
5195 | |
5196 /********************************* ***************************/ | |
5197 |