Mercurial > projects > ldc
annotate dmd/template.c @ 1147:dbe4af57b240
Changed use of toObjFile to a new codegen method.
More versioning of DMD specific codegen code.
author | Tomas Lindquist Olsen <tomas.l.olsen gmail.com> |
---|---|
date | Fri, 27 Mar 2009 17:54:27 +0100 |
parents | 1860414bf3b7 |
children | 0b26cfb2d445 |
rev | line source |
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336 | 1 |
2 // Compiler implementation of the D programming language | |
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3 // Copyright (c) 1999-2009 by Digital Mars |
336 | 4 // All Rights Reserved |
5 // written by Walter Bright | |
6 // http://www.digitalmars.com | |
7 // License for redistribution is by either the Artistic License | |
8 // in artistic.txt, or the GNU General Public License in gnu.txt. | |
9 // See the included readme.txt for details. | |
10 | |
11 // Handle template implementation | |
12 | |
13 #include <stdio.h> | |
14 #include <assert.h> | |
15 | |
16 #if !IN_LLVM | |
17 #if _WIN32 | |
18 #include <windows.h> | |
19 long __cdecl __ehfilter(LPEXCEPTION_POINTERS ep); | |
20 #endif | |
21 #endif | |
22 | |
23 #include "root.h" | |
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24 #include "rmem.h" |
336 | 25 #include "stringtable.h" |
26 #include "mars.h" | |
27 #include "identifier.h" | |
28 #include "mtype.h" | |
29 #include "template.h" | |
30 #include "init.h" | |
31 #include "expression.h" | |
32 #include "scope.h" | |
33 #include "module.h" | |
34 #include "aggregate.h" | |
35 #include "declaration.h" | |
36 #include "dsymbol.h" | |
37 #include "hdrgen.h" | |
38 | |
39 #define LOG 0 | |
40 | |
41 /******************************************** | |
42 * These functions substitute for dynamic_cast. dynamic_cast does not work | |
43 * on earlier versions of gcc. | |
44 */ | |
45 | |
46 Expression *isExpression(Object *o) | |
47 { | |
48 //return dynamic_cast<Expression *>(o); | |
49 if (!o || o->dyncast() != DYNCAST_EXPRESSION) | |
50 return NULL; | |
51 return (Expression *)o; | |
52 } | |
53 | |
54 Dsymbol *isDsymbol(Object *o) | |
55 { | |
56 //return dynamic_cast<Dsymbol *>(o); | |
57 if (!o || o->dyncast() != DYNCAST_DSYMBOL) | |
58 return NULL; | |
59 return (Dsymbol *)o; | |
60 } | |
61 | |
62 Type *isType(Object *o) | |
63 { | |
64 //return dynamic_cast<Type *>(o); | |
65 if (!o || o->dyncast() != DYNCAST_TYPE) | |
66 return NULL; | |
67 return (Type *)o; | |
68 } | |
69 | |
70 Tuple *isTuple(Object *o) | |
71 { | |
72 //return dynamic_cast<Tuple *>(o); | |
73 if (!o || o->dyncast() != DYNCAST_TUPLE) | |
74 return NULL; | |
75 return (Tuple *)o; | |
76 } | |
77 | |
78 | |
79 /*********************** | |
80 * Try to get arg as a type. | |
81 */ | |
82 | |
83 Type *getType(Object *o) | |
84 { | |
85 Type *t = isType(o); | |
86 if (!t) | |
87 { Expression *e = isExpression(o); | |
88 if (e) | |
89 t = e->type; | |
90 } | |
91 return t; | |
92 } | |
93 | |
94 Dsymbol *getDsymbol(Object *oarg) | |
95 { | |
96 Dsymbol *sa; | |
97 Expression *ea = isExpression(oarg); | |
98 if (ea) | |
99 { // Try to convert Expression to symbol | |
100 if (ea->op == TOKvar) | |
101 sa = ((VarExp *)ea)->var; | |
102 else if (ea->op == TOKfunction) | |
103 sa = ((FuncExp *)ea)->fd; | |
104 else | |
105 sa = NULL; | |
106 } | |
107 else | |
108 { // Try to convert Type to symbol | |
109 Type *ta = isType(oarg); | |
110 if (ta) | |
111 sa = ta->toDsymbol(NULL); | |
112 else | |
113 sa = isDsymbol(oarg); // if already a symbol | |
114 } | |
115 return sa; | |
116 } | |
117 | |
118 /****************************** | |
119 * If o1 matches o2, return 1. | |
120 * Else, return 0. | |
121 */ | |
122 | |
123 int match(Object *o1, Object *o2, TemplateDeclaration *tempdecl, Scope *sc) | |
124 { | |
125 Type *t1 = isType(o1); | |
126 Type *t2 = isType(o2); | |
127 Expression *e1 = isExpression(o1); | |
128 Expression *e2 = isExpression(o2); | |
129 Dsymbol *s1 = isDsymbol(o1); | |
130 Dsymbol *s2 = isDsymbol(o2); | |
131 Tuple *v1 = isTuple(o1); | |
132 Tuple *v2 = isTuple(o2); | |
133 | |
134 //printf("\t match t1 %p t2 %p, e1 %p e2 %p, s1 %p s2 %p, v1 %p v2 %p\n", t1,t2,e1,e2,s1,s2,v1,v2); | |
135 | |
136 /* A proper implementation of the various equals() overrides | |
137 * should make it possible to just do o1->equals(o2), but | |
138 * we'll do that another day. | |
139 */ | |
140 | |
141 if (t1) | |
142 { | |
143 /* if t1 is an instance of ti, then give error | |
144 * about recursive expansions. | |
145 */ | |
146 Dsymbol *s = t1->toDsymbol(sc); | |
147 if (s && s->parent) | |
148 { TemplateInstance *ti1 = s->parent->isTemplateInstance(); | |
149 if (ti1 && ti1->tempdecl == tempdecl) | |
150 { | |
151 for (Scope *sc1 = sc; sc1; sc1 = sc1->enclosing) | |
152 { | |
153 if (sc1->scopesym == ti1) | |
154 { | |
155 error("recursive template expansion for template argument %s", t1->toChars()); | |
156 return 1; // fake a match | |
157 } | |
158 } | |
159 } | |
160 } | |
161 | |
162 if (!t2 || !t1->equals(t2)) | |
163 goto Lnomatch; | |
164 } | |
165 else if (e1) | |
166 { | |
167 #if 0 | |
168 if (e1 && e2) | |
169 { | |
170 printf("match %d\n", e1->equals(e2)); | |
171 e1->print(); | |
172 e2->print(); | |
173 e1->type->print(); | |
174 e2->type->print(); | |
175 } | |
176 #endif | |
177 if (!e2) | |
178 goto Lnomatch; | |
179 if (!e1->equals(e2)) | |
180 goto Lnomatch; | |
181 } | |
182 else if (s1) | |
183 { | |
184 //printf("%p %s, %p %s\n", s1, s1->toChars(), s2, s2->toChars()); | |
185 if (!s2 || !s1->equals(s2) || s1->parent != s2->parent) | |
186 { | |
187 goto Lnomatch; | |
188 } | |
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189 #if V2 |
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190 VarDeclaration *v1 = s1->isVarDeclaration(); |
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191 VarDeclaration *v2 = s2->isVarDeclaration(); |
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192 if (v1 && v2 && v1->storage_class & v2->storage_class & STCmanifest) |
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193 { ExpInitializer *ei1 = v1->init->isExpInitializer(); |
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194 ExpInitializer *ei2 = v2->init->isExpInitializer(); |
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195 if (ei1 && ei2 && !ei1->exp->equals(ei2->exp)) |
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196 goto Lnomatch; |
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197 } |
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198 #endif |
336 | 199 } |
200 else if (v1) | |
201 { | |
202 if (!v2) | |
203 goto Lnomatch; | |
204 if (v1->objects.dim != v2->objects.dim) | |
205 goto Lnomatch; | |
206 for (size_t i = 0; i < v1->objects.dim; i++) | |
207 { | |
208 if (!match((Object *)v1->objects.data[i], | |
209 (Object *)v2->objects.data[i], | |
210 tempdecl, sc)) | |
211 goto Lnomatch; | |
212 } | |
213 } | |
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214 //printf("match\n"); |
336 | 215 return 1; // match |
216 Lnomatch: | |
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217 //printf("nomatch\n"); |
336 | 218 return 0; // nomatch; |
219 } | |
220 | |
221 /**************************************** | |
222 */ | |
223 | |
224 void ObjectToCBuffer(OutBuffer *buf, HdrGenState *hgs, Object *oarg) | |
225 { | |
226 //printf("ObjectToCBuffer()\n"); | |
227 Type *t = isType(oarg); | |
228 Expression *e = isExpression(oarg); | |
229 Dsymbol *s = isDsymbol(oarg); | |
230 Tuple *v = isTuple(oarg); | |
231 if (t) | |
232 { //printf("\tt: %s ty = %d\n", t->toChars(), t->ty); | |
233 t->toCBuffer(buf, NULL, hgs); | |
234 } | |
235 else if (e) | |
236 e->toCBuffer(buf, hgs); | |
237 else if (s) | |
238 { | |
239 char *p = s->ident ? s->ident->toChars() : s->toChars(); | |
240 buf->writestring(p); | |
241 } | |
242 else if (v) | |
243 { | |
244 Objects *args = &v->objects; | |
245 for (size_t i = 0; i < args->dim; i++) | |
246 { | |
247 if (i) | |
248 buf->writeByte(','); | |
249 Object *o = (Object *)args->data[i]; | |
250 ObjectToCBuffer(buf, hgs, o); | |
251 } | |
252 } | |
253 else if (!oarg) | |
254 { | |
255 buf->writestring("NULL"); | |
256 } | |
257 else | |
258 { | |
259 #ifdef DEBUG | |
260 printf("bad Object = %p\n", oarg); | |
261 #endif | |
262 assert(0); | |
263 } | |
264 } | |
265 | |
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266 #if V2 |
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267 Object *objectSyntaxCopy(Object *o) |
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268 { |
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269 if (!o) |
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270 return NULL; |
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271 Type *t = isType(o); |
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272 if (t) |
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273 return t->syntaxCopy(); |
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274 Expression *e = isExpression(o); |
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275 if (e) |
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276 return e->syntaxCopy(); |
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277 return o; |
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278 } |
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279 #endif |
336 | 280 |
281 | |
282 /* ======================== TemplateDeclaration ============================= */ | |
283 | |
284 TemplateDeclaration::TemplateDeclaration(Loc loc, Identifier *id, TemplateParameters *parameters, Array *decldefs) | |
285 : ScopeDsymbol(id) | |
286 { | |
287 #if LOG | |
288 printf("TemplateDeclaration(this = %p, id = '%s')\n", this, id->toChars()); | |
289 #endif | |
290 #if 0 | |
291 if (parameters) | |
292 for (int i = 0; i < parameters->dim; i++) | |
293 { TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
294 //printf("\tparameter[%d] = %p\n", i, tp); | |
295 TemplateTypeParameter *ttp = tp->isTemplateTypeParameter(); | |
296 | |
297 if (ttp) | |
298 { | |
299 printf("\tparameter[%d] = %s : %s\n", i, tp->ident->toChars(), ttp->specType ? ttp->specType->toChars() : ""); | |
300 } | |
301 } | |
302 #endif | |
303 this->loc = loc; | |
304 this->parameters = parameters; | |
305 this->origParameters = parameters; | |
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306 #if V2 |
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307 this->constraint = constraint; |
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308 #endif |
336 | 309 this->members = decldefs; |
310 this->overnext = NULL; | |
311 this->overroot = NULL; | |
312 this->scope = NULL; | |
313 this->onemember = NULL; | |
314 } | |
315 | |
316 Dsymbol *TemplateDeclaration::syntaxCopy(Dsymbol *) | |
317 { | |
318 //printf("TemplateDeclaration::syntaxCopy()\n"); | |
319 TemplateDeclaration *td; | |
320 TemplateParameters *p; | |
321 Array *d; | |
322 | |
323 p = NULL; | |
324 if (parameters) | |
325 { | |
326 p = new TemplateParameters(); | |
327 p->setDim(parameters->dim); | |
328 for (int i = 0; i < p->dim; i++) | |
329 { TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
330 p->data[i] = (void *)tp->syntaxCopy(); | |
331 } | |
332 } | |
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333 #if V2 |
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334 Expression *e = NULL; |
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335 if (constraint) |
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336 e = constraint->syntaxCopy(); |
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337 #endif |
336 | 338 d = Dsymbol::arraySyntaxCopy(members); |
339 td = new TemplateDeclaration(loc, ident, p, d); | |
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340 |
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341 #if IN_LLVM |
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342 // LDC |
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343 td->intrinsicName = intrinsicName; |
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344 #endif |
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345 |
336 | 346 return td; |
347 } | |
348 | |
349 void TemplateDeclaration::semantic(Scope *sc) | |
350 { | |
351 #if LOG | |
352 printf("TemplateDeclaration::semantic(this = %p, id = '%s')\n", this, ident->toChars()); | |
353 #endif | |
354 if (scope) | |
355 return; // semantic() already run | |
356 | |
357 if (sc->func) | |
358 { | |
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359 #if DMDV1 |
336 | 360 error("cannot declare template at function scope %s", sc->func->toChars()); |
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361 #endif |
336 | 362 } |
363 | |
364 if (/*global.params.useArrayBounds &&*/ sc->module) | |
365 { | |
366 // Generate this function as it may be used | |
367 // when template is instantiated in other modules | |
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368 |
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369 // FIXME: LDC |
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370 //sc->module->toModuleArray(); |
336 | 371 } |
372 | |
373 if (/*global.params.useAssert &&*/ sc->module) | |
374 { | |
375 // Generate this function as it may be used | |
376 // when template is instantiated in other modules | |
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377 |
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378 // FIXME: LDC |
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379 //sc->module->toModuleAssert(); |
336 | 380 } |
381 | |
382 /* Remember Scope for later instantiations, but make | |
383 * a copy since attributes can change. | |
384 */ | |
385 this->scope = new Scope(*sc); | |
386 this->scope->setNoFree(); | |
387 | |
388 // Set up scope for parameters | |
389 ScopeDsymbol *paramsym = new ScopeDsymbol(); | |
390 paramsym->parent = sc->parent; | |
391 Scope *paramscope = sc->push(paramsym); | |
392 paramscope->parameterSpecialization = 1; | |
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393 paramscope->stc = 0; |
336 | 394 |
395 if (global.params.doDocComments) | |
396 { | |
397 origParameters = new TemplateParameters(); | |
398 origParameters->setDim(parameters->dim); | |
399 for (int i = 0; i < parameters->dim; i++) | |
400 { | |
401 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
402 origParameters->data[i] = (void *)tp->syntaxCopy(); | |
403 } | |
404 } | |
405 | |
406 for (int i = 0; i < parameters->dim; i++) | |
407 { | |
408 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
409 | |
410 tp->declareParameter(paramscope); | |
411 } | |
412 | |
413 for (int i = 0; i < parameters->dim; i++) | |
414 { | |
415 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
416 | |
417 tp->semantic(paramscope); | |
418 if (i + 1 != parameters->dim && tp->isTemplateTupleParameter()) | |
419 error("template tuple parameter must be last one"); | |
420 } | |
421 | |
422 paramscope->pop(); | |
423 | |
424 if (members) | |
425 { | |
426 Dsymbol *s; | |
427 if (Dsymbol::oneMembers(members, &s)) | |
428 { | |
429 if (s && s->ident && s->ident->equals(ident)) | |
430 { | |
431 onemember = s; | |
432 s->parent = this; | |
433 } | |
434 } | |
435 } | |
436 | |
437 /* BUG: should check: | |
438 * o no virtual functions or non-static data members of classes | |
439 */ | |
440 } | |
441 | |
442 const char *TemplateDeclaration::kind() | |
443 { | |
444 return (onemember && onemember->isAggregateDeclaration()) | |
445 ? onemember->kind() | |
446 : (char *)"template"; | |
447 } | |
448 | |
449 /********************************** | |
450 * Overload existing TemplateDeclaration 'this' with the new one 's'. | |
451 * Return !=0 if successful; i.e. no conflict. | |
452 */ | |
453 | |
454 int TemplateDeclaration::overloadInsert(Dsymbol *s) | |
455 { | |
456 TemplateDeclaration **pf; | |
457 TemplateDeclaration *f; | |
458 | |
459 #if LOG | |
460 printf("TemplateDeclaration::overloadInsert('%s')\n", s->toChars()); | |
461 #endif | |
462 f = s->isTemplateDeclaration(); | |
463 if (!f) | |
464 return FALSE; | |
465 TemplateDeclaration *pthis = this; | |
466 for (pf = &pthis; *pf; pf = &(*pf)->overnext) | |
467 { | |
468 #if 0 | |
469 // Conflict if TemplateParameter's match | |
470 // Will get caught anyway later with TemplateInstance, but | |
471 // should check it now. | |
472 TemplateDeclaration *f2 = *pf; | |
473 | |
474 if (f->parameters->dim != f2->parameters->dim) | |
475 goto Lcontinue; | |
476 | |
477 for (int i = 0; i < f->parameters->dim; i++) | |
478 { TemplateParameter *p1 = (TemplateParameter *)f->parameters->data[i]; | |
479 TemplateParameter *p2 = (TemplateParameter *)f2->parameters->data[i]; | |
480 | |
481 if (!p1->overloadMatch(p2)) | |
482 goto Lcontinue; | |
483 } | |
484 | |
485 #if LOG | |
486 printf("\tfalse: conflict\n"); | |
487 #endif | |
488 return FALSE; | |
489 | |
490 Lcontinue: | |
491 ; | |
492 #endif | |
493 } | |
494 | |
495 f->overroot = this; | |
496 *pf = f; | |
497 #if LOG | |
498 printf("\ttrue: no conflict\n"); | |
499 #endif | |
500 return TRUE; | |
501 } | |
502 | |
503 /*************************************** | |
504 * Given that ti is an instance of this TemplateDeclaration, | |
505 * deduce the types of the parameters to this, and store | |
506 * those deduced types in dedtypes[]. | |
507 * Input: | |
508 * flag 1: don't do semantic() because of dummy types | |
509 * 2: don't change types in matchArg() | |
510 * Output: | |
511 * dedtypes deduced arguments | |
512 * Return match level. | |
513 */ | |
514 | |
515 MATCH TemplateDeclaration::matchWithInstance(TemplateInstance *ti, | |
516 Objects *dedtypes, int flag) | |
517 { MATCH m; | |
518 int dedtypes_dim = dedtypes->dim; | |
519 | |
520 #define LOGM 0 | |
521 #if LOGM | |
522 printf("\n+TemplateDeclaration::matchWithInstance(this = %s, ti = %s, flag = %d)\n", toChars(), ti->toChars(), flag); | |
523 #endif | |
524 | |
525 #if 0 | |
526 printf("dedtypes->dim = %d, parameters->dim = %d\n", dedtypes_dim, parameters->dim); | |
527 if (ti->tiargs->dim) | |
528 printf("ti->tiargs->dim = %d, [0] = %p\n", | |
529 ti->tiargs->dim, | |
530 ti->tiargs->data[0]); | |
531 #endif | |
532 dedtypes->zero(); | |
533 | |
534 int parameters_dim = parameters->dim; | |
535 int variadic = isVariadic() != NULL; | |
536 | |
537 // If more arguments than parameters, no match | |
538 if (ti->tiargs->dim > parameters_dim && !variadic) | |
539 { | |
540 #if LOGM | |
541 printf(" no match: more arguments than parameters\n"); | |
542 #endif | |
543 return MATCHnomatch; | |
544 } | |
545 | |
546 assert(dedtypes_dim == parameters_dim); | |
547 assert(dedtypes_dim >= ti->tiargs->dim || variadic); | |
548 | |
549 // Set up scope for parameters | |
550 assert((size_t)scope > 0x10000); | |
551 ScopeDsymbol *paramsym = new ScopeDsymbol(); | |
552 paramsym->parent = scope->parent; | |
553 Scope *paramscope = scope->push(paramsym); | |
1103
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554 paramscope->stc = 0; |
336 | 555 |
556 // Attempt type deduction | |
557 m = MATCHexact; | |
558 for (int i = 0; i < dedtypes_dim; i++) | |
559 { MATCH m2; | |
560 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
561 Declaration *sparam; | |
562 | |
563 //printf("\targument [%d]\n", i); | |
564 #if LOGM | |
565 //printf("\targument [%d] is %s\n", i, oarg ? oarg->toChars() : "null"); | |
566 TemplateTypeParameter *ttp = tp->isTemplateTypeParameter(); | |
567 if (ttp) | |
568 printf("\tparameter[%d] is %s : %s\n", i, tp->ident->toChars(), ttp->specType ? ttp->specType->toChars() : ""); | |
569 #endif | |
570 | |
571 #if DMDV1 | |
572 m2 = tp->matchArg(paramscope, ti->tiargs, i, parameters, dedtypes, &sparam); | |
573 #else | |
574 m2 = tp->matchArg(paramscope, ti->tiargs, i, parameters, dedtypes, &sparam, (flag & 2) ? 1 : 0); | |
575 | |
576 #endif | |
577 //printf("\tm2 = %d\n", m2); | |
578 | |
579 if (m2 == MATCHnomatch) | |
580 { | |
581 #if 0 | |
582 printf("\tmatchArg() for parameter %i failed\n", i); | |
583 #endif | |
584 goto Lnomatch; | |
585 } | |
586 | |
587 if (m2 < m) | |
588 m = m2; | |
589 | |
590 if (!flag) | |
591 sparam->semantic(paramscope); | |
592 if (!paramscope->insert(sparam)) | |
593 goto Lnomatch; | |
594 } | |
595 | |
596 if (!flag) | |
597 { | |
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598 /* Any parameter left without a type gets the type of |
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599 * its corresponding arg |
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600 */ |
336 | 601 for (int i = 0; i < dedtypes_dim; i++) |
602 { | |
603 if (!dedtypes->data[i]) | |
604 { assert(i < ti->tiargs->dim); | |
605 dedtypes->data[i] = ti->tiargs->data[i]; | |
606 } | |
607 } | |
608 } | |
609 | |
875
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610 #if DMDV2 |
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611 if (m && constraint && !(flag & 1)) |
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612 { /* Check to see if constraint is satisfied. |
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613 */ |
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614 Expression *e = constraint->syntaxCopy(); |
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615 paramscope->flags |= SCOPEstaticif; |
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616 e = e->semantic(paramscope); |
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617 e = e->optimize(WANTvalue | WANTinterpret); |
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618 if (e->isBool(TRUE)) |
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619 ; |
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620 else if (e->isBool(FALSE)) |
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621 goto Lnomatch; |
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622 else |
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623 { |
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624 e->error("constraint %s is not constant or does not evaluate to a bool", e->toChars()); |
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625 } |
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626 } |
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627 #endif |
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628 |
336 | 629 #if LOGM |
630 // Print out the results | |
631 printf("--------------------------\n"); | |
632 printf("template %s\n", toChars()); | |
633 printf("instance %s\n", ti->toChars()); | |
634 if (m) | |
635 { | |
636 for (int i = 0; i < dedtypes_dim; i++) | |
637 { | |
638 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
639 Object *oarg; | |
640 | |
641 printf(" [%d]", i); | |
642 | |
643 if (i < ti->tiargs->dim) | |
644 oarg = (Object *)ti->tiargs->data[i]; | |
645 else | |
646 oarg = NULL; | |
647 tp->print(oarg, (Object *)dedtypes->data[i]); | |
648 } | |
649 } | |
650 else | |
651 goto Lnomatch; | |
652 #endif | |
653 | |
654 #if LOGM | |
655 printf(" match = %d\n", m); | |
656 #endif | |
657 goto Lret; | |
658 | |
659 Lnomatch: | |
660 #if LOGM | |
661 printf(" no match\n"); | |
662 #endif | |
663 m = MATCHnomatch; | |
664 | |
665 Lret: | |
666 paramscope->pop(); | |
667 #if LOGM | |
668 printf("-TemplateDeclaration::matchWithInstance(this = %p, ti = %p) = %d\n", this, ti, m); | |
669 #endif | |
670 return m; | |
671 } | |
672 | |
673 /******************************************** | |
674 * Determine partial specialization order of 'this' vs td2. | |
675 * Returns: | |
676 * 1 this is at least as specialized as td2 | |
677 * 0 td2 is more specialized than this | |
678 */ | |
679 | |
680 int TemplateDeclaration::leastAsSpecialized(TemplateDeclaration *td2) | |
681 { | |
682 /* This works by taking the template parameters to this template | |
683 * declaration and feeding them to td2 as if it were a template | |
684 * instance. | |
685 * If it works, then this template is at least as specialized | |
686 * as td2. | |
687 */ | |
688 | |
689 TemplateInstance ti(0, ident); // create dummy template instance | |
690 Objects dedtypes; | |
691 | |
692 #define LOG_LEASTAS 0 | |
693 | |
694 #if LOG_LEASTAS | |
695 printf("%s.leastAsSpecialized(%s)\n", toChars(), td2->toChars()); | |
696 #endif | |
697 | |
698 // Set type arguments to dummy template instance to be types | |
699 // generated from the parameters to this template declaration | |
700 ti.tiargs = new Objects(); | |
701 ti.tiargs->setDim(parameters->dim); | |
702 for (int i = 0; i < ti.tiargs->dim; i++) | |
703 { | |
704 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
705 | |
706 void *p = tp->dummyArg(); | |
707 if (p) | |
708 ti.tiargs->data[i] = p; | |
709 else | |
710 ti.tiargs->setDim(i); | |
711 } | |
712 | |
713 // Temporary Array to hold deduced types | |
714 //dedtypes.setDim(parameters->dim); | |
715 dedtypes.setDim(td2->parameters->dim); | |
716 | |
717 // Attempt a type deduction | |
718 if (td2->matchWithInstance(&ti, &dedtypes, 1)) | |
719 { | |
720 /* A non-variadic template is more specialized than a | |
721 * variadic one. | |
722 */ | |
723 if (isVariadic() && !td2->isVariadic()) | |
724 goto L1; | |
725 | |
726 #if LOG_LEASTAS | |
727 printf(" matches, so is least as specialized\n"); | |
728 #endif | |
729 return 1; | |
730 } | |
731 L1: | |
732 #if LOG_LEASTAS | |
733 printf(" doesn't match, so is not as specialized\n"); | |
734 #endif | |
735 return 0; | |
736 } | |
737 | |
738 | |
739 /************************************************* | |
740 * Match function arguments against a specific template function. | |
741 * Input: | |
875
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742 * loc instantiation location |
336 | 743 * targsi Expression/Type initial list of template arguments |
875
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744 * ethis 'this' argument if !NULL |
336 | 745 * fargs arguments to function |
746 * Output: | |
747 * dedargs Expression/Type deduced template arguments | |
748 * Returns: | |
749 * match level | |
750 */ | |
751 | |
875
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752 MATCH TemplateDeclaration::deduceFunctionTemplateMatch(Loc loc, Objects *targsi, |
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753 Expression *ethis, Expressions *fargs, |
336 | 754 Objects *dedargs) |
755 { | |
756 size_t i; | |
757 size_t nfparams; | |
758 size_t nfargs; | |
759 size_t nargsi; // array size of targsi | |
760 int fptupindex = -1; | |
761 int tuple_dim = 0; | |
762 MATCH match = MATCHexact; | |
763 FuncDeclaration *fd = onemember->toAlias()->isFuncDeclaration(); | |
764 TypeFunction *fdtype; // type of fd | |
765 TemplateTupleParameter *tp; | |
766 Objects dedtypes; // for T:T*, the dedargs is the T*, dedtypes is the T | |
767 | |
768 #if 0 | |
769 printf("\nTemplateDeclaration::deduceFunctionTemplateMatch() %s\n", toChars()); | |
770 for (i = 0; i < fargs->dim; i++) | |
771 { Expression *e = (Expression *)fargs->data[i]; | |
772 printf("\tfarg[%d] is %s, type is %s\n", i, e->toChars(), e->type->toChars()); | |
773 } | |
774 #endif | |
775 | |
776 assert((size_t)scope > 0x10000); | |
777 | |
778 dedargs->setDim(parameters->dim); | |
779 dedargs->zero(); | |
780 | |
781 dedtypes.setDim(parameters->dim); | |
782 dedtypes.zero(); | |
783 | |
784 // Set up scope for parameters | |
785 ScopeDsymbol *paramsym = new ScopeDsymbol(); | |
786 paramsym->parent = scope->parent; | |
787 Scope *paramscope = scope->push(paramsym); | |
788 | |
789 tp = isVariadic(); | |
790 | |
791 nargsi = 0; | |
792 if (targsi) | |
793 { // Set initial template arguments | |
794 | |
795 nargsi = targsi->dim; | |
796 if (nargsi > parameters->dim) | |
797 { if (!tp) | |
798 goto Lnomatch; | |
799 dedargs->setDim(nargsi); | |
800 dedargs->zero(); | |
801 } | |
802 | |
803 memcpy(dedargs->data, targsi->data, nargsi * sizeof(*dedargs->data)); | |
804 | |
805 for (i = 0; i < nargsi; i++) | |
1103
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806 { assert(i < parameters->dim); |
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807 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; |
336 | 808 MATCH m; |
809 Declaration *sparam; | |
810 | |
811 m = tp->matchArg(paramscope, dedargs, i, parameters, &dedtypes, &sparam); | |
812 //printf("\tdeduceType m = %d\n", m); | |
813 if (m == MATCHnomatch) | |
814 goto Lnomatch; | |
815 if (m < match) | |
816 match = m; | |
817 | |
818 sparam->semantic(paramscope); | |
819 if (!paramscope->insert(sparam)) | |
820 goto Lnomatch; | |
821 } | |
822 } | |
823 | |
824 assert(fd->type->ty == Tfunction); | |
825 fdtype = (TypeFunction *)fd->type; | |
826 | |
827 nfparams = Argument::dim(fdtype->parameters); // number of function parameters | |
828 nfargs = fargs->dim; // number of function arguments | |
829 | |
830 /* Check for match of function arguments with variadic template | |
831 * parameter, such as: | |
832 * | |
833 * template Foo(T, A...) { void Foo(T t, A a); } | |
834 * void main() { Foo(1,2,3); } | |
835 */ | |
836 tp = isVariadic(); | |
837 if (tp) // if variadic | |
838 { | |
839 if (nfparams == 0) // if no function parameters | |
840 { | |
841 Tuple *t = new Tuple(); | |
842 //printf("t = %p\n", t); | |
843 dedargs->data[parameters->dim - 1] = (void *)t; | |
1103
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844 declareParameter(paramscope, tp, t); |
336 | 845 goto L2; |
846 } | |
847 else if (nfargs < nfparams - 1) | |
848 goto L1; | |
849 else | |
850 { | |
851 /* Figure out which of the function parameters matches | |
852 * the tuple template parameter. Do this by matching | |
853 * type identifiers. | |
854 * Set the index of this function parameter to fptupindex. | |
855 */ | |
856 for (fptupindex = 0; fptupindex < nfparams; fptupindex++) | |
857 { | |
858 Argument *fparam = (Argument *)fdtype->parameters->data[fptupindex]; | |
859 if (fparam->type->ty != Tident) | |
860 continue; | |
861 TypeIdentifier *tid = (TypeIdentifier *)fparam->type; | |
862 if (!tp->ident->equals(tid->ident) || tid->idents.dim) | |
863 continue; | |
864 | |
865 if (fdtype->varargs) // variadic function doesn't | |
866 goto Lnomatch; // go with variadic template | |
867 | |
868 /* The types of the function arguments | |
869 * now form the tuple argument. | |
870 */ | |
871 Tuple *t = new Tuple(); | |
872 dedargs->data[parameters->dim - 1] = (void *)t; | |
873 | |
874 tuple_dim = nfargs - (nfparams - 1); | |
875 t->objects.setDim(tuple_dim); | |
876 for (i = 0; i < tuple_dim; i++) | |
877 { Expression *farg = (Expression *)fargs->data[fptupindex + i]; | |
878 t->objects.data[i] = (void *)farg->type; | |
879 } | |
1103
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880 declareParameter(paramscope, tp, t); |
336 | 881 goto L2; |
882 } | |
883 fptupindex = -1; | |
884 } | |
885 } | |
886 | |
887 L1: | |
888 if (nfparams == nfargs) | |
889 ; | |
890 else if (nfargs > nfparams) | |
891 { | |
892 if (fdtype->varargs == 0) | |
893 goto Lnomatch; // too many args, no match | |
894 match = MATCHconvert; // match ... with a conversion | |
895 } | |
896 | |
897 L2: | |
875
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898 #if DMDV2 |
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899 // Match 'ethis' to any TemplateThisParameter's |
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900 if (ethis) |
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901 { |
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902 for (size_t i = 0; i < parameters->dim; i++) |
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903 { TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; |
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904 TemplateThisParameter *ttp = tp->isTemplateThisParameter(); |
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905 if (ttp) |
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|
906 { MATCH m; |
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|
907 |
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908 Type *t = new TypeIdentifier(0, ttp->ident); |
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|
909 m = ethis->type->deduceType(scope, t, parameters, &dedtypes); |
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diff
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|
910 if (!m) |
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|
911 goto Lnomatch; |
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diff
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|
912 if (m < match) |
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|
913 match = m; // pick worst match |
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|
914 } |
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|
915 } |
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diff
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|
916 } |
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diff
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|
917 #endif |
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|
918 |
336 | 919 // Loop through the function parameters |
920 for (i = 0; i < nfparams; i++) | |
921 { | |
922 /* Skip over function parameters which wound up | |
923 * as part of a template tuple parameter. | |
924 */ | |
925 if (i == fptupindex) | |
926 { if (fptupindex == nfparams - 1) | |
927 break; | |
928 i += tuple_dim - 1; | |
929 continue; | |
930 } | |
931 | |
932 Argument *fparam = Argument::getNth(fdtype->parameters, i); | |
933 | |
934 if (i >= nfargs) // if not enough arguments | |
935 { | |
936 if (fparam->defaultArg) | |
937 { /* Default arguments do not participate in template argument | |
938 * deduction. | |
939 */ | |
940 goto Lmatch; | |
941 } | |
942 } | |
943 else | |
944 { Expression *farg = (Expression *)fargs->data[i]; | |
945 #if 0 | |
946 printf("\tfarg->type = %s\n", farg->type->toChars()); | |
947 printf("\tfparam->type = %s\n", fparam->type->toChars()); | |
948 #endif | |
949 | |
950 MATCH m; | |
951 m = farg->type->deduceType(scope, fparam->type, parameters, &dedtypes); | |
952 //printf("\tdeduceType m = %d\n", m); | |
953 | |
954 /* If no match, see if there's a conversion to a delegate | |
955 */ | |
956 if (!m && fparam->type->toBasetype()->ty == Tdelegate) | |
957 { | |
958 TypeDelegate *td = (TypeDelegate *)fparam->type->toBasetype(); | |
959 TypeFunction *tf = (TypeFunction *)td->next; | |
960 | |
961 if (!tf->varargs && Argument::dim(tf->parameters) == 0) | |
962 { | |
963 m = farg->type->deduceType(scope, tf->next, parameters, &dedtypes); | |
964 if (!m && tf->next->toBasetype()->ty == Tvoid) | |
965 m = MATCHconvert; | |
966 } | |
967 //printf("\tm2 = %d\n", m); | |
968 } | |
969 | |
970 if (m) | |
971 { if (m < match) | |
972 match = m; // pick worst match | |
973 continue; | |
974 } | |
975 } | |
976 | |
977 /* The following code for variadic arguments closely | |
978 * matches TypeFunction::callMatch() | |
979 */ | |
980 if (!(fdtype->varargs == 2 && i + 1 == nfparams)) | |
981 goto Lnomatch; | |
982 | |
983 /* Check for match with function parameter T... | |
984 */ | |
985 Type *tb = fparam->type->toBasetype(); | |
986 switch (tb->ty) | |
987 { | |
988 // Perhaps we can do better with this, see TypeFunction::callMatch() | |
989 case Tsarray: | |
990 { TypeSArray *tsa = (TypeSArray *)tb; | |
991 integer_t sz = tsa->dim->toInteger(); | |
992 if (sz != nfargs - i) | |
993 goto Lnomatch; | |
994 } | |
995 case Tarray: | |
996 { TypeArray *ta = (TypeArray *)tb; | |
997 for (; i < nfargs; i++) | |
998 { | |
999 Expression *arg = (Expression *)fargs->data[i]; | |
1000 assert(arg); | |
1001 MATCH m; | |
1002 /* If lazy array of delegates, | |
1003 * convert arg(s) to delegate(s) | |
1004 */ | |
1005 Type *tret = fparam->isLazyArray(); | |
1006 if (tret) | |
1007 { | |
1008 if (ta->next->equals(arg->type)) | |
1009 { m = MATCHexact; | |
1010 } | |
1011 else | |
1012 { | |
1013 m = arg->implicitConvTo(tret); | |
1014 if (m == MATCHnomatch) | |
1015 { | |
1016 if (tret->toBasetype()->ty == Tvoid) | |
1017 m = MATCHconvert; | |
1018 } | |
1019 } | |
1020 } | |
1021 else | |
1022 { | |
1023 m = arg->type->deduceType(scope, ta->next, parameters, &dedtypes); | |
1024 //m = arg->implicitConvTo(ta->next); | |
1025 } | |
1026 if (m == MATCHnomatch) | |
1027 goto Lnomatch; | |
1028 if (m < match) | |
1029 match = m; | |
1030 } | |
1031 goto Lmatch; | |
1032 } | |
1033 case Tclass: | |
1034 case Tident: | |
1035 goto Lmatch; | |
1036 | |
1037 default: | |
1038 goto Lnomatch; | |
1039 } | |
1040 } | |
1041 | |
1042 Lmatch: | |
1043 | |
1044 /* Fill in any missing arguments with their defaults. | |
1045 */ | |
1046 for (i = nargsi; i < dedargs->dim; i++) | |
1047 { | |
1048 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
1049 //printf("tp[%d] = %s\n", i, tp->ident->toChars()); | |
1050 /* For T:T*, the dedargs is the T*, dedtypes is the T | |
1051 * But for function templates, we really need them to match | |
1052 */ | |
1053 Object *oarg = (Object *)dedargs->data[i]; | |
1054 Object *oded = (Object *)dedtypes.data[i]; | |
1055 //printf("1dedargs[%d] = %p, dedtypes[%d] = %p\n", i, oarg, i, oded); | |
1056 if (!oarg) | |
1057 { | |
1058 if (oded) | |
1059 { | |
1060 if (tp->specialization()) | |
1061 { /* The specialization can work as long as afterwards | |
1062 * the oded == oarg | |
1063 */ | |
1064 Declaration *sparam; | |
1065 dedargs->data[i] = (void *)oded; | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
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parents:
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diff
changeset
|
1066 MATCH m2 = tp->matchArg(paramscope, dedargs, i, parameters, &dedtypes, &sparam, 0); |
336 | 1067 //printf("m2 = %d\n", m2); |
1068 if (!m2) | |
1069 goto Lnomatch; | |
1070 if (m2 < match) | |
1071 match = m2; // pick worst match | |
1072 if (dedtypes.data[i] != oded) | |
1073 error("specialization not allowed for deduced parameter %s", tp->ident->toChars()); | |
1074 } | |
1075 } | |
1076 else | |
875
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diff
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|
1077 { oded = tp->defaultArg(loc, paramscope); |
336 | 1078 if (!oded) |
1079 goto Lnomatch; | |
1080 } | |
1081 declareParameter(paramscope, tp, oded); | |
1082 dedargs->data[i] = (void *)oded; | |
1083 } | |
1084 } | |
1085 | |
875
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|
1086 #if DMDV2 |
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|
1087 if (constraint) |
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|
1088 { /* Check to see if constraint is satisfied. |
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|
1089 */ |
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|
1090 Expression *e = constraint->syntaxCopy(); |
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|
1091 paramscope->flags |= SCOPEstaticif; |
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|
1092 e = e->semantic(paramscope); |
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|
1093 e = e->optimize(WANTvalue | WANTinterpret); |
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|
1094 if (e->isBool(TRUE)) |
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|
1095 ; |
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|
1096 else if (e->isBool(FALSE)) |
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diff
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|
1097 goto Lnomatch; |
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diff
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|
1098 else |
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diff
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|
1099 { |
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diff
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|
1100 e->error("constraint %s is not constant or does not evaluate to a bool", e->toChars()); |
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diff
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|
1101 } |
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diff
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|
1102 } |
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diff
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|
1103 #endif |
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|
1104 |
336 | 1105 #if 0 |
1106 for (i = 0; i < dedargs->dim; i++) | |
1107 { Type *t = (Type *)dedargs->data[i]; | |
1108 printf("\tdedargs[%d] = %d, %s\n", i, t->dyncast(), t->toChars()); | |
1109 } | |
1110 #endif | |
1111 | |
1112 paramscope->pop(); | |
1113 //printf("\tmatch %d\n", match); | |
1114 return match; | |
1115 | |
1116 Lnomatch: | |
1117 paramscope->pop(); | |
1118 //printf("\tnomatch\n"); | |
1119 return MATCHnomatch; | |
1120 } | |
1121 | |
1122 /************************************************** | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1123 * Declare template parameter tp with value o, and install it in the scope sc. |
336 | 1124 */ |
1125 | |
1126 void TemplateDeclaration::declareParameter(Scope *sc, TemplateParameter *tp, Object *o) | |
1127 { | |
1128 //printf("TemplateDeclaration::declareParameter('%s', o = %p)\n", tp->ident->toChars(), o); | |
1129 | |
1130 Type *targ = isType(o); | |
1131 Expression *ea = isExpression(o); | |
1132 Dsymbol *sa = isDsymbol(o); | |
1133 Tuple *va = isTuple(o); | |
1134 | |
1135 Dsymbol *s; | |
1136 | |
1137 if (targ) | |
1138 { | |
1139 //printf("type %s\n", targ->toChars()); | |
1140 s = new AliasDeclaration(0, tp->ident, targ); | |
1141 } | |
1142 else if (sa) | |
1143 { | |
1144 //printf("Alias %s %s;\n", sa->ident->toChars(), tp->ident->toChars()); | |
1145 s = new AliasDeclaration(0, tp->ident, sa); | |
1146 } | |
1147 else if (ea) | |
1148 { | |
1149 // tdtypes.data[i] always matches ea here | |
1150 Initializer *init = new ExpInitializer(loc, ea); | |
1151 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
1152 assert(tvp); | |
1153 | |
1154 VarDeclaration *v = new VarDeclaration(loc, tvp->valType, tp->ident, init); | |
1155 v->storage_class = STCconst; | |
1156 s = v; | |
1157 } | |
1158 else if (va) | |
1159 { | |
1160 //printf("\ttuple\n"); | |
1161 s = new TupleDeclaration(loc, tp->ident, &va->objects); | |
1162 } | |
1163 else | |
1164 { | |
1165 #ifdef DEBUG | |
1166 o->print(); | |
1167 #endif | |
1168 assert(0); | |
1169 } | |
1170 if (!sc->insert(s)) | |
1171 error("declaration %s is already defined", tp->ident->toChars()); | |
1172 s->semantic(sc); | |
1173 } | |
1174 | |
1175 /************************************** | |
1176 * Determine if TemplateDeclaration is variadic. | |
1177 */ | |
1178 | |
1179 TemplateTupleParameter *isVariadic(TemplateParameters *parameters) | |
1180 { size_t dim = parameters->dim; | |
1181 TemplateTupleParameter *tp = NULL; | |
1182 | |
1183 if (dim) | |
1184 tp = ((TemplateParameter *)parameters->data[dim - 1])->isTemplateTupleParameter(); | |
1185 return tp; | |
1186 } | |
1187 | |
1188 TemplateTupleParameter *TemplateDeclaration::isVariadic() | |
1189 { | |
1190 return ::isVariadic(parameters); | |
1191 } | |
1192 | |
1193 /*********************************** | |
1194 * We can overload templates. | |
1195 */ | |
1196 | |
1197 int TemplateDeclaration::isOverloadable() | |
1198 { | |
1199 return 1; | |
1200 } | |
1201 | |
1202 /************************************************* | |
1203 * Given function arguments, figure out which template function | |
1204 * to expand, and return that function. | |
1205 * If no match, give error message and return NULL. | |
1206 * Input: | |
1207 * sc instantiation scope | |
1208 * loc instantiation location | |
1209 * targsi initial list of template arguments | |
875
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diff
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|
1210 * ethis if !NULL, the 'this' pointer argument |
336 | 1211 * fargs arguments to function |
875
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|
1212 * flags 1: do not issue error message on no match, just return NULL |
336 | 1213 */ |
1214 | |
1215 FuncDeclaration *TemplateDeclaration::deduceFunctionTemplate(Scope *sc, Loc loc, | |
875
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1216 Objects *targsi, Expression *ethis, Expressions *fargs, int flags) |
336 | 1217 { |
1218 MATCH m_best = MATCHnomatch; | |
1219 TemplateDeclaration *td_ambig = NULL; | |
1220 TemplateDeclaration *td_best = NULL; | |
1221 Objects *tdargs = new Objects(); | |
1222 TemplateInstance *ti; | |
1223 FuncDeclaration *fd; | |
1224 | |
1225 #if 0 | |
1226 printf("TemplateDeclaration::deduceFunctionTemplate() %s\n", toChars()); | |
1227 printf(" targsi:\n"); | |
1228 if (targsi) | |
1229 { for (int i = 0; i < targsi->dim; i++) | |
1230 { Object *arg = (Object *)targsi->data[i]; | |
1231 printf("\t%s\n", arg->toChars()); | |
1232 } | |
1233 } | |
1234 printf(" fargs:\n"); | |
1235 for (int i = 0; i < fargs->dim; i++) | |
1236 { Expression *arg = (Expression *)fargs->data[i]; | |
1237 printf("\t%s %s\n", arg->type->toChars(), arg->toChars()); | |
1238 //printf("\tty = %d\n", arg->type->ty); | |
1239 } | |
1240 #endif | |
1241 | |
1242 for (TemplateDeclaration *td = this; td; td = td->overnext) | |
1243 { | |
1244 if (!td->scope) | |
1245 { | |
1246 error("forward reference to template %s", td->toChars()); | |
1247 goto Lerror; | |
1248 } | |
1249 if (!td->onemember || !td->onemember->toAlias()->isFuncDeclaration()) | |
1250 { | |
1251 error("is not a function template"); | |
1252 goto Lerror; | |
1253 } | |
1254 | |
1255 MATCH m; | |
1256 Objects dedargs; | |
1257 | |
875
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1258 m = td->deduceFunctionTemplateMatch(loc, targsi, ethis, fargs, &dedargs); |
336 | 1259 //printf("deduceFunctionTemplateMatch = %d\n", m); |
1260 if (!m) // if no match | |
1261 continue; | |
1262 | |
1263 if (m < m_best) | |
1264 goto Ltd_best; | |
1265 if (m > m_best) | |
1266 goto Ltd; | |
1267 | |
1268 { | |
1269 // Disambiguate by picking the most specialized TemplateDeclaration | |
1270 int c1 = td->leastAsSpecialized(td_best); | |
1271 int c2 = td_best->leastAsSpecialized(td); | |
1272 //printf("c1 = %d, c2 = %d\n", c1, c2); | |
1273 | |
1274 if (c1 > c2) | |
1275 goto Ltd; | |
1276 else if (c1 < c2) | |
1277 goto Ltd_best; | |
1278 else | |
1279 goto Lambig; | |
1280 } | |
1281 | |
1282 Lambig: // td_best and td are ambiguous | |
1283 td_ambig = td; | |
1284 continue; | |
1285 | |
1286 Ltd_best: // td_best is the best match so far | |
1287 td_ambig = NULL; | |
1288 continue; | |
1289 | |
1290 Ltd: // td is the new best match | |
1291 td_ambig = NULL; | |
1292 assert((size_t)td->scope > 0x10000); | |
1293 td_best = td; | |
1294 m_best = m; | |
1295 tdargs->setDim(dedargs.dim); | |
1296 memcpy(tdargs->data, dedargs.data, tdargs->dim * sizeof(void *)); | |
1297 continue; | |
1298 } | |
1299 if (!td_best) | |
1300 { | |
1301 error(loc, "does not match any template declaration"); | |
1302 goto Lerror; | |
1303 } | |
1304 if (td_ambig) | |
1305 { | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1306 error(loc, "matches more than one function template declaration:\n %s\nand:\n %s", |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
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diff
changeset
|
1307 td_best->toChars(), td_ambig->toChars()); |
336 | 1308 } |
1309 | |
1310 /* The best match is td_best with arguments tdargs. | |
1311 * Now instantiate the template. | |
1312 */ | |
1313 assert((size_t)td_best->scope > 0x10000); | |
1314 ti = new TemplateInstance(loc, td_best, tdargs); | |
1315 ti->semantic(sc); | |
1316 fd = ti->toAlias()->isFuncDeclaration(); | |
1317 if (!fd) | |
1318 goto Lerror; | |
1319 return fd; | |
1320 | |
1321 Lerror: | |
1322 { | |
875
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diff
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|
1323 HdrGenState hgs; |
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|
1324 |
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1325 OutBuffer bufa; |
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1326 Objects *args = targsi; |
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1327 if (args) |
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1328 { for (int i = 0; i < args->dim; i++) |
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1329 { |
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1330 if (i) |
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diff
changeset
|
1331 bufa.writeByte(','); |
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1332 Object *oarg = (Object *)args->data[i]; |
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1333 ObjectToCBuffer(&bufa, &hgs, oarg); |
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1334 } |
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1335 } |
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1336 |
336 | 1337 OutBuffer buf; |
1338 argExpTypesToCBuffer(&buf, fargs, &hgs); | |
875
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1339 error(loc, "cannot deduce template function from argument types !(%s)(%s)", |
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1340 bufa.toChars(), buf.toChars()); |
336 | 1341 } |
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1342 return NULL; |
336 | 1343 } |
1344 | |
1345 void TemplateDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
1346 { | |
1347 #if 0 // Should handle template functions | |
1348 if (onemember && onemember->isFuncDeclaration()) | |
1349 buf->writestring("foo "); | |
1350 #endif | |
1351 buf->writestring(kind()); | |
1352 buf->writeByte(' '); | |
1353 buf->writestring(ident->toChars()); | |
1354 buf->writeByte('('); | |
1355 for (int i = 0; i < parameters->dim; i++) | |
1356 { | |
1357 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
1358 if (hgs->ddoc) | |
1359 tp = (TemplateParameter *)origParameters->data[i]; | |
1360 if (i) | |
1361 buf->writeByte(','); | |
1362 tp->toCBuffer(buf, hgs); | |
1363 } | |
1364 buf->writeByte(')'); | |
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1365 #if DMDV2 |
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1366 if (constraint) |
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1367 { buf->writestring(" if ("); |
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1368 constraint->toCBuffer(buf, hgs); |
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1369 buf->writeByte(')'); |
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1370 } |
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1371 #endif |
336 | 1372 |
1373 if (hgs->hdrgen) | |
1374 { | |
1375 hgs->tpltMember++; | |
1376 buf->writenl(); | |
1377 buf->writebyte('{'); | |
1378 buf->writenl(); | |
1379 for (int i = 0; i < members->dim; i++) | |
1380 { | |
1381 Dsymbol *s = (Dsymbol *)members->data[i]; | |
1382 s->toCBuffer(buf, hgs); | |
1383 } | |
1384 buf->writebyte('}'); | |
1385 buf->writenl(); | |
1386 hgs->tpltMember--; | |
1387 } | |
1388 } | |
1389 | |
1390 | |
1391 char *TemplateDeclaration::toChars() | |
1392 { OutBuffer buf; | |
1393 HdrGenState hgs; | |
1394 | |
1395 memset(&hgs, 0, sizeof(hgs)); | |
1396 buf.writestring(ident->toChars()); | |
1397 buf.writeByte('('); | |
1398 for (int i = 0; i < parameters->dim; i++) | |
1399 { | |
1400 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
1401 if (i) | |
1402 buf.writeByte(','); | |
1403 tp->toCBuffer(&buf, &hgs); | |
1404 } | |
1405 buf.writeByte(')'); | |
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1406 #if DMDV2 |
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1407 if (constraint) |
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1408 { buf.writestring(" if ("); |
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1409 constraint->toCBuffer(&buf, &hgs); |
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1410 buf.writeByte(')'); |
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1411 } |
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1412 #endif |
336 | 1413 buf.writeByte(0); |
1414 return (char *)buf.extractData(); | |
1415 } | |
1416 | |
1417 /* ======================== Type ============================================ */ | |
1418 | |
1419 /**** | |
1420 * Given an identifier, figure out which TemplateParameter it is. | |
1421 * Return -1 if not found. | |
1422 */ | |
1423 | |
1424 int templateIdentifierLookup(Identifier *id, TemplateParameters *parameters) | |
1425 { | |
1426 for (size_t i = 0; i < parameters->dim; i++) | |
1427 { TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
1428 | |
1429 if (tp->ident->equals(id)) | |
1430 return i; | |
1431 } | |
1432 return -1; | |
1433 } | |
1434 | |
1435 int templateParameterLookup(Type *tparam, TemplateParameters *parameters) | |
1436 { | |
1437 assert(tparam->ty == Tident); | |
1438 TypeIdentifier *tident = (TypeIdentifier *)tparam; | |
1439 //printf("\ttident = '%s'\n", tident->toChars()); | |
1440 if (tident->idents.dim == 0) | |
1441 { | |
1442 return templateIdentifierLookup(tident->ident, parameters); | |
1443 } | |
1444 return -1; | |
1445 } | |
1446 | |
1447 /* These form the heart of template argument deduction. | |
1448 * Given 'this' being the type argument to the template instance, | |
1449 * it is matched against the template declaration parameter specialization | |
1450 * 'tparam' to determine the type to be used for the parameter. | |
1451 * Example: | |
1452 * template Foo(T:T*) // template declaration | |
1453 * Foo!(int*) // template instantiation | |
1454 * Input: | |
1455 * this = int* | |
1456 * tparam = T | |
1457 * parameters = [ T:T* ] // Array of TemplateParameter's | |
1458 * Output: | |
1459 * dedtypes = [ int ] // Array of Expression/Type's | |
1460 */ | |
1461 | |
1462 MATCH Type::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, | |
1463 Objects *dedtypes) | |
1464 { | |
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|
1465 #if 0 |
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1466 printf("Type::deduceType()\n"); |
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1467 printf("\tthis = %d, ", ty); print(); |
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1468 printf("\ttparam = %d, ", tparam->ty); tparam->print(); |
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1469 #endif |
336 | 1470 if (!tparam) |
1471 goto Lnomatch; | |
1472 | |
1473 if (this == tparam) | |
1474 goto Lexact; | |
1475 | |
1476 if (tparam->ty == Tident) | |
1477 { | |
1478 // Determine which parameter tparam is | |
1479 int i = templateParameterLookup(tparam, parameters); | |
1480 if (i == -1) | |
1481 { | |
1482 if (!sc) | |
1483 goto Lnomatch; | |
1484 | |
1485 /* Need a loc to go with the semantic routine. | |
1486 */ | |
1487 Loc loc; | |
1488 if (parameters->dim) | |
1489 { | |
1490 TemplateParameter *tp = (TemplateParameter *)parameters->data[0]; | |
1491 loc = tp->loc; | |
1492 } | |
1493 | |
1494 /* BUG: what if tparam is a template instance, that | |
1495 * has as an argument another Tident? | |
1496 */ | |
1497 tparam = tparam->semantic(loc, sc); | |
1498 assert(tparam->ty != Tident); | |
1499 return deduceType(sc, tparam, parameters, dedtypes); | |
1500 } | |
1501 | |
1502 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
1503 | |
1504 // Found the corresponding parameter tp | |
1505 if (!tp->isTemplateTypeParameter()) | |
1506 goto Lnomatch; | |
1507 Type *at = (Type *)dedtypes->data[i]; | |
1508 if (!at) | |
1509 { | |
1510 dedtypes->data[i] = (void *)this; | |
1511 goto Lexact; | |
1512 } | |
1513 if (equals(at)) | |
1514 goto Lexact; | |
1515 else if (ty == Tclass && at->ty == Tclass) | |
1516 { | |
1517 return (MATCH) implicitConvTo(at); | |
1518 } | |
1519 else if (ty == Tsarray && at->ty == Tarray && | |
1520 nextOf()->equals(at->nextOf())) | |
1521 { | |
1522 goto Lexact; | |
1523 } | |
1524 else | |
1525 goto Lnomatch; | |
1526 } | |
1527 | |
1528 if (ty != tparam->ty) | |
1529 return implicitConvTo(tparam); | |
1530 // goto Lnomatch; | |
1531 | |
1532 if (nextOf()) | |
1533 return nextOf()->deduceType(sc, tparam->nextOf(), parameters, dedtypes); | |
1534 | |
1535 Lexact: | |
1536 return MATCHexact; | |
1537 | |
1538 Lnomatch: | |
1539 return MATCHnomatch; | |
1540 } | |
1541 | |
1542 MATCH TypeSArray::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, | |
1543 Objects *dedtypes) | |
1544 { | |
1545 #if 0 | |
1546 printf("TypeSArray::deduceType()\n"); | |
1547 printf("\tthis = %d, ", ty); print(); | |
1548 printf("\ttparam = %d, ", tparam->ty); tparam->print(); | |
1549 #endif | |
1550 | |
1551 // Extra check that array dimensions must match | |
1552 if (tparam) | |
1553 { | |
1554 if (tparam->ty == Tsarray) | |
1555 { | |
1556 TypeSArray *tp = (TypeSArray *)tparam; | |
1557 | |
1558 if (tp->dim->op == TOKvar && | |
1559 ((VarExp *)tp->dim)->var->storage_class & STCtemplateparameter) | |
1560 { int i = templateIdentifierLookup(((VarExp *)tp->dim)->var->ident, parameters); | |
1561 // This code matches code in TypeInstance::deduceType() | |
1562 if (i == -1) | |
1563 goto Lnomatch; | |
1564 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
1565 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
1566 if (!tvp) | |
1567 goto Lnomatch; | |
1568 Expression *e = (Expression *)dedtypes->data[i]; | |
1569 if (e) | |
1570 { | |
1571 if (!dim->equals(e)) | |
1572 goto Lnomatch; | |
1573 } | |
1574 else | |
1575 { Type *vt = tvp->valType->semantic(0, sc); | |
1576 MATCH m = (MATCH)dim->implicitConvTo(vt); | |
1577 if (!m) | |
1578 goto Lnomatch; | |
1579 dedtypes->data[i] = dim; | |
1580 } | |
1581 } | |
1582 else if (dim->toInteger() != tp->dim->toInteger()) | |
1583 return MATCHnomatch; | |
1584 } | |
1585 else if (tparam->ty == Taarray) | |
1586 { | |
1587 TypeAArray *tp = (TypeAArray *)tparam; | |
1588 if (tp->index->ty == Tident) | |
1589 { TypeIdentifier *tident = (TypeIdentifier *)tp->index; | |
1590 | |
1591 if (tident->idents.dim == 0) | |
1592 { Identifier *id = tident->ident; | |
1593 | |
1594 for (size_t i = 0; i < parameters->dim; i++) | |
1595 { | |
1596 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
1597 | |
1598 if (tp->ident->equals(id)) | |
1599 { // Found the corresponding template parameter | |
1600 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
1601 if (!tvp || !tvp->valType->isintegral()) | |
1602 goto Lnomatch; | |
1603 | |
1604 if (dedtypes->data[i]) | |
1605 { | |
1606 if (!dim->equals((Object *)dedtypes->data[i])) | |
1607 goto Lnomatch; | |
1608 } | |
1609 else | |
1610 { dedtypes->data[i] = (void *)dim; | |
1611 } | |
1612 return next->deduceType(sc, tparam->nextOf(), parameters, dedtypes); | |
1613 } | |
1614 } | |
1615 } | |
1616 } | |
1617 } | |
1618 else if (tparam->ty == Tarray) | |
1619 { MATCH m; | |
1620 | |
1621 m = next->deduceType(sc, tparam->nextOf(), parameters, dedtypes); | |
1622 if (m == MATCHexact) | |
1623 m = MATCHconvert; | |
1624 return m; | |
1625 } | |
1626 } | |
1627 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
1628 | |
1629 Lnomatch: | |
1630 return MATCHnomatch; | |
1631 } | |
1632 | |
1633 MATCH TypeAArray::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
1634 { | |
1635 #if 0 | |
1636 printf("TypeAArray::deduceType()\n"); | |
1637 printf("\tthis = %d, ", ty); print(); | |
1638 printf("\ttparam = %d, ", tparam->ty); tparam->print(); | |
1639 #endif | |
1640 | |
1641 // Extra check that index type must match | |
1642 if (tparam && tparam->ty == Taarray) | |
1643 { | |
1644 TypeAArray *tp = (TypeAArray *)tparam; | |
1645 if (!index->deduceType(sc, tp->index, parameters, dedtypes)) | |
1646 { | |
1647 return MATCHnomatch; | |
1648 } | |
1649 } | |
1650 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
1651 } | |
1652 | |
1653 MATCH TypeFunction::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
1654 { | |
1655 //printf("TypeFunction::deduceType()\n"); | |
1656 //printf("\tthis = %d, ", ty); print(); | |
1657 //printf("\ttparam = %d, ", tparam->ty); tparam->print(); | |
1658 | |
1659 // Extra check that function characteristics must match | |
1660 if (tparam && tparam->ty == Tfunction) | |
1661 { | |
1662 TypeFunction *tp = (TypeFunction *)tparam; | |
1663 if (varargs != tp->varargs || | |
1664 linkage != tp->linkage) | |
1665 return MATCHnomatch; | |
1666 | |
1667 size_t nfargs = Argument::dim(this->parameters); | |
1668 size_t nfparams = Argument::dim(tp->parameters); | |
1669 | |
1670 /* See if tuple match | |
1671 */ | |
1672 if (nfparams > 0 && nfargs >= nfparams - 1) | |
1673 { | |
1674 /* See if 'A' of the template parameter matches 'A' | |
1675 * of the type of the last function parameter. | |
1676 */ | |
1677 Argument *fparam = (Argument *)tp->parameters->data[nfparams - 1]; | |
1678 if (fparam->type->ty != Tident) | |
1679 goto L1; | |
1680 TypeIdentifier *tid = (TypeIdentifier *)fparam->type; | |
1681 if (tid->idents.dim) | |
1682 goto L1; | |
1683 | |
1684 /* Look through parameters to find tuple matching tid->ident | |
1685 */ | |
1686 size_t tupi = 0; | |
1687 for (; 1; tupi++) | |
1688 { if (tupi == parameters->dim) | |
1689 goto L1; | |
1690 TemplateParameter *t = (TemplateParameter *)parameters->data[tupi]; | |
1691 TemplateTupleParameter *tup = t->isTemplateTupleParameter(); | |
1692 if (tup && tup->ident->equals(tid->ident)) | |
1693 break; | |
1694 } | |
1695 | |
1696 /* The types of the function arguments [nfparams - 1 .. nfargs] | |
1697 * now form the tuple argument. | |
1698 */ | |
1699 int tuple_dim = nfargs - (nfparams - 1); | |
1700 | |
1701 /* See if existing tuple, and whether it matches or not | |
1702 */ | |
1703 Object *o = (Object *)dedtypes->data[tupi]; | |
1704 if (o) | |
1705 { // Existing deduced argument must be a tuple, and must match | |
1706 Tuple *t = isTuple(o); | |
1707 if (!t || t->objects.dim != tuple_dim) | |
1708 return MATCHnomatch; | |
1709 for (size_t i = 0; i < tuple_dim; i++) | |
1710 { Argument *arg = Argument::getNth(this->parameters, nfparams - 1 + i); | |
1711 if (!arg->type->equals((Object *)t->objects.data[i])) | |
1712 return MATCHnomatch; | |
1713 } | |
1714 } | |
1715 else | |
1716 { // Create new tuple | |
1717 Tuple *t = new Tuple(); | |
1718 t->objects.setDim(tuple_dim); | |
1719 for (size_t i = 0; i < tuple_dim; i++) | |
1720 { Argument *arg = Argument::getNth(this->parameters, nfparams - 1 + i); | |
1721 t->objects.data[i] = (void *)arg->type; | |
1722 } | |
1723 dedtypes->data[tupi] = (void *)t; | |
1724 } | |
1725 nfparams--; // don't consider the last parameter for type deduction | |
1726 goto L2; | |
1727 } | |
1728 | |
1729 L1: | |
1730 if (nfargs != nfparams) | |
1731 return MATCHnomatch; | |
1732 L2: | |
1733 for (size_t i = 0; i < nfparams; i++) | |
1734 { | |
1735 Argument *a = Argument::getNth(this->parameters, i); | |
1736 Argument *ap = Argument::getNth(tp->parameters, i); | |
1737 if (a->storageClass != ap->storageClass || | |
1738 !a->type->deduceType(sc, ap->type, parameters, dedtypes)) | |
1739 return MATCHnomatch; | |
1740 } | |
1741 } | |
1742 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
1743 } | |
1744 | |
1745 MATCH TypeIdentifier::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
1746 { | |
1747 // Extra check | |
1748 if (tparam && tparam->ty == Tident) | |
1749 { | |
1750 TypeIdentifier *tp = (TypeIdentifier *)tparam; | |
1751 | |
1752 for (int i = 0; i < idents.dim; i++) | |
1753 { | |
1754 Identifier *id1 = (Identifier *)idents.data[i]; | |
1755 Identifier *id2 = (Identifier *)tp->idents.data[i]; | |
1756 | |
1757 if (!id1->equals(id2)) | |
1758 return MATCHnomatch; | |
1759 } | |
1760 } | |
1761 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
1762 } | |
1763 | |
1764 MATCH TypeInstance::deduceType(Scope *sc, | |
1765 Type *tparam, TemplateParameters *parameters, | |
1766 Objects *dedtypes) | |
1767 { | |
1768 //printf("TypeInstance::deduceType(tparam = %s) %s\n", tparam->toChars(), toChars()); | |
1769 //printf("\ttparam = %d, ", tparam->ty); tparam->print(); | |
1770 | |
1771 // Extra check | |
1772 if (tparam && tparam->ty == Tinstance) | |
1773 { | |
1774 TypeInstance *tp = (TypeInstance *)tparam; | |
1775 | |
1776 //printf("tempinst->tempdecl = %p\n", tempinst->tempdecl); | |
1777 //printf("tp->tempinst->tempdecl = %p\n", tp->tempinst->tempdecl); | |
1778 if (!tp->tempinst->tempdecl) | |
1779 { //printf("tp->tempinst->name = '%s'\n", tp->tempinst->name->toChars()); | |
1780 if (!tp->tempinst->name->equals(tempinst->name)) | |
1781 { | |
1782 /* Handle case of: | |
1783 * template Foo(T : sa!(T), alias sa) | |
1784 */ | |
1785 int i = templateIdentifierLookup(tp->tempinst->name, parameters); | |
1786 if (i == -1) | |
1787 { /* Didn't find it as a parameter identifier. Try looking | |
1788 * it up and seeing if is an alias. See Bugzilla 1454 | |
1789 */ | |
1790 Dsymbol *s = tempinst->tempdecl->scope->search(0, tp->tempinst->name, NULL); | |
1791 if (s) | |
1792 { | |
1793 s = s->toAlias(); | |
1794 TemplateDeclaration *td = s->isTemplateDeclaration(); | |
1795 if (td && td == tempinst->tempdecl) | |
1796 goto L2; | |
1797 } | |
1798 goto Lnomatch; | |
1799 } | |
1800 TemplateParameter *tpx = (TemplateParameter *)parameters->data[i]; | |
1801 // This logic duplicates tpx->matchArg() | |
1802 TemplateAliasParameter *ta = tpx->isTemplateAliasParameter(); | |
1803 if (!ta) | |
1804 goto Lnomatch; | |
1805 Dsymbol *sa = tempinst->tempdecl; | |
1806 if (!sa) | |
1807 goto Lnomatch; | |
1808 if (ta->specAlias && sa != ta->specAlias) | |
1809 goto Lnomatch; | |
1810 if (dedtypes->data[i]) | |
1811 { // Must match already deduced symbol | |
1812 Dsymbol *s = (Dsymbol *)dedtypes->data[i]; | |
1813 | |
1814 if (s != sa) | |
1815 goto Lnomatch; | |
1816 } | |
1817 dedtypes->data[i] = sa; | |
1818 } | |
1819 } | |
1820 else if (tempinst->tempdecl != tp->tempinst->tempdecl) | |
1821 goto Lnomatch; | |
1822 | |
1823 L2: | |
1824 if (tempinst->tiargs->dim != tp->tempinst->tiargs->dim) | |
1825 goto Lnomatch; | |
1826 | |
1827 for (int i = 0; i < tempinst->tiargs->dim; i++) | |
1828 { | |
1829 //printf("\ttest: tempinst->tiargs[%d]\n", i); | |
1830 int j; | |
1831 Object *o1 = (Object *)tempinst->tiargs->data[i]; | |
1832 Object *o2 = (Object *)tp->tempinst->tiargs->data[i]; | |
1833 | |
1834 Type *t1 = isType(o1); | |
1835 Type *t2 = isType(o2); | |
1836 | |
1837 Expression *e1 = isExpression(o1); | |
1838 Expression *e2 = isExpression(o2); | |
1839 | |
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1840 Dsymbol *s1 = isDsymbol(o1); |
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1841 Dsymbol *s2 = isDsymbol(o2); |
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1842 |
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1843 Tuple *v1 = isTuple(o1); |
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1844 Tuple *v2 = isTuple(o2); |
336 | 1845 #if 0 |
1846 if (t1) printf("t1 = %s\n", t1->toChars()); | |
1847 if (t2) printf("t2 = %s\n", t2->toChars()); | |
1848 if (e1) printf("e1 = %s\n", e1->toChars()); | |
1849 if (e2) printf("e2 = %s\n", e2->toChars()); | |
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1850 if (s1) printf("s1 = %s\n", s1->toChars()); |
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1851 if (s2) printf("s2 = %s\n", s2->toChars()); |
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1852 if (v1) printf("v1 = %s\n", v1->toChars()); |
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1853 if (v2) printf("v2 = %s\n", v2->toChars()); |
336 | 1854 #endif |
1855 | |
1856 if (t1 && t2) | |
1857 { | |
1858 if (!t1->deduceType(sc, t2, parameters, dedtypes)) | |
1859 goto Lnomatch; | |
1860 } | |
1861 else if (e1 && e2) | |
1862 { | |
1863 if (!e1->equals(e2)) | |
1864 { if (e2->op == TOKvar) | |
1865 { | |
1866 /* | |
1867 * (T:Number!(e2), int e2) | |
1868 */ | |
1869 j = templateIdentifierLookup(((VarExp *)e2)->var->ident, parameters); | |
1870 goto L1; | |
1871 } | |
1872 goto Lnomatch; | |
1873 } | |
1874 } | |
1875 else if (e1 && t2 && t2->ty == Tident) | |
1876 { | |
1877 j = templateParameterLookup(t2, parameters); | |
1878 L1: | |
1879 if (j == -1) | |
1880 goto Lnomatch; | |
1881 TemplateParameter *tp = (TemplateParameter *)parameters->data[j]; | |
1882 // BUG: use tp->matchArg() instead of the following | |
1883 TemplateValueParameter *tv = tp->isTemplateValueParameter(); | |
1884 if (!tv) | |
1885 goto Lnomatch; | |
1886 Expression *e = (Expression *)dedtypes->data[j]; | |
1887 if (e) | |
1888 { | |
1889 if (!e1->equals(e)) | |
1890 goto Lnomatch; | |
1891 } | |
1892 else | |
1893 { Type *vt = tv->valType->semantic(0, sc); | |
1894 MATCH m = (MATCH)e1->implicitConvTo(vt); | |
1895 if (!m) | |
1896 goto Lnomatch; | |
1897 dedtypes->data[j] = e1; | |
1898 } | |
1899 } | |
1103
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1900 else if (s1 && t2 && t2->ty == Tident) |
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|
1901 { |
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|
1902 j = templateParameterLookup(t2, parameters); |
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|
1903 if (j == -1) |
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|
1904 goto Lnomatch; |
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|
1905 TemplateParameter *tp = (TemplateParameter *)parameters->data[j]; |
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|
1906 // BUG: use tp->matchArg() instead of the following |
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Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
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|
1907 TemplateAliasParameter *ta = tp->isTemplateAliasParameter(); |
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Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
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|
1908 if (!ta) |
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|
1909 goto Lnomatch; |
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diff
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|
1910 Dsymbol *s = (Dsymbol *)dedtypes->data[j]; |
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|
1911 if (s) |
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|
1912 { |
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- Updated to DMD frontend 1.041.
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|
1913 if (!s1->equals(s)) |
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- Updated to DMD frontend 1.041.
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|
1914 goto Lnomatch; |
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Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
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diff
changeset
|
1915 } |
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Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
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diff
changeset
|
1916 else |
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diff
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|
1917 { |
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|
1918 dedtypes->data[j] = s1; |
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- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
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diff
changeset
|
1919 } |
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- Updated to DMD frontend 1.041.
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1920 } |
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Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
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|
1921 else if (s1 && s2) |
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Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
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diff
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|
1922 { |
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- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
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|
1923 if (!s1->equals(s2)) |
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Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
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diff
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|
1924 goto Lnomatch; |
b30fe7e1dbb9
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Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
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|
1925 } |
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|
1926 // BUG: Need to handle tuple parameters |
336 | 1927 else |
1928 goto Lnomatch; | |
1929 } | |
1930 } | |
1931 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
1932 | |
1933 Lnomatch: | |
1934 return MATCHnomatch; | |
1935 } | |
1936 | |
1937 MATCH TypeStruct::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
1938 { | |
1939 //printf("TypeStruct::deduceType()\n"); | |
1940 //printf("\tthis->parent = %s, ", sym->parent->toChars()); print(); | |
1941 //printf("\ttparam = %d, ", tparam->ty); tparam->print(); | |
1942 | |
1943 /* If this struct is a template struct, and we're matching | |
1944 * it against a template instance, convert the struct type | |
1945 * to a template instance, too, and try again. | |
1946 */ | |
1947 TemplateInstance *ti = sym->parent->isTemplateInstance(); | |
1948 | |
1949 if (tparam && tparam->ty == Tinstance) | |
1950 { | |
1951 if (ti && ti->toAlias() == sym) | |
1952 { | |
1953 TypeInstance *t = new TypeInstance(0, ti); | |
1954 return t->deduceType(sc, tparam, parameters, dedtypes); | |
1955 } | |
1956 | |
1957 /* Match things like: | |
1958 * S!(T).foo | |
1959 */ | |
1960 TypeInstance *tpi = (TypeInstance *)tparam; | |
1961 if (tpi->idents.dim) | |
1962 { Identifier *id = (Identifier *)tpi->idents.data[tpi->idents.dim - 1]; | |
1963 if (id->dyncast() == DYNCAST_IDENTIFIER && sym->ident->equals(id)) | |
1964 { | |
1965 Type *tparent = sym->parent->getType(); | |
1966 if (tparent) | |
1967 { | |
1968 /* Slice off the .foo in S!(T).foo | |
1969 */ | |
1970 tpi->idents.dim--; | |
1971 MATCH m = tparent->deduceType(sc, tpi, parameters, dedtypes); | |
1972 tpi->idents.dim++; | |
1973 return m; | |
1974 } | |
1975 } | |
1976 } | |
1977 } | |
1978 | |
1979 // Extra check | |
1980 if (tparam && tparam->ty == Tstruct) | |
1981 { | |
1982 TypeStruct *tp = (TypeStruct *)tparam; | |
1983 | |
1984 if (sym != tp->sym) | |
1985 return MATCHnomatch; | |
1986 } | |
1987 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
1988 } | |
1989 | |
1990 MATCH TypeEnum::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
1991 { | |
1992 // Extra check | |
1993 if (tparam && tparam->ty == Tenum) | |
1994 { | |
1995 TypeEnum *tp = (TypeEnum *)tparam; | |
1996 | |
1997 if (sym != tp->sym) | |
1998 return MATCHnomatch; | |
1999 } | |
2000 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
2001 } | |
2002 | |
2003 MATCH TypeTypedef::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
2004 { | |
2005 // Extra check | |
2006 if (tparam && tparam->ty == Ttypedef) | |
2007 { | |
2008 TypeTypedef *tp = (TypeTypedef *)tparam; | |
2009 | |
2010 if (sym != tp->sym) | |
2011 return MATCHnomatch; | |
2012 } | |
2013 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
2014 } | |
2015 | |
2016 MATCH TypeClass::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
2017 { | |
2018 //printf("TypeClass::deduceType(this = %s)\n", toChars()); | |
2019 | |
2020 /* If this class is a template class, and we're matching | |
2021 * it against a template instance, convert the class type | |
2022 * to a template instance, too, and try again. | |
2023 */ | |
2024 TemplateInstance *ti = sym->parent->isTemplateInstance(); | |
2025 | |
2026 if (tparam && tparam->ty == Tinstance) | |
2027 { | |
2028 if (ti && ti->toAlias() == sym) | |
2029 { | |
2030 TypeInstance *t = new TypeInstance(0, ti); | |
2031 return t->deduceType(sc, tparam, parameters, dedtypes); | |
2032 } | |
2033 | |
2034 /* Match things like: | |
2035 * S!(T).foo | |
2036 */ | |
2037 TypeInstance *tpi = (TypeInstance *)tparam; | |
2038 if (tpi->idents.dim) | |
2039 { Identifier *id = (Identifier *)tpi->idents.data[tpi->idents.dim - 1]; | |
2040 if (id->dyncast() == DYNCAST_IDENTIFIER && sym->ident->equals(id)) | |
2041 { | |
2042 Type *tparent = sym->parent->getType(); | |
2043 if (tparent) | |
2044 { | |
2045 /* Slice off the .foo in S!(T).foo | |
2046 */ | |
2047 tpi->idents.dim--; | |
2048 MATCH m = tparent->deduceType(sc, tpi, parameters, dedtypes); | |
2049 tpi->idents.dim++; | |
2050 return m; | |
2051 } | |
2052 } | |
2053 } | |
2054 } | |
2055 | |
2056 // Extra check | |
2057 if (tparam && tparam->ty == Tclass) | |
2058 { | |
2059 TypeClass *tp = (TypeClass *)tparam; | |
2060 | |
2061 //printf("\t%d\n", (MATCH) implicitConvTo(tp)); | |
2062 return (MATCH) implicitConvTo(tp); | |
2063 } | |
2064 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
2065 } | |
2066 | |
2067 /* ======================== TemplateParameter =============================== */ | |
2068 | |
2069 TemplateParameter::TemplateParameter(Loc loc, Identifier *ident) | |
2070 { | |
2071 this->loc = loc; | |
2072 this->ident = ident; | |
2073 this->sparam = NULL; | |
2074 } | |
2075 | |
2076 TemplateTypeParameter *TemplateParameter::isTemplateTypeParameter() | |
2077 { | |
2078 return NULL; | |
2079 } | |
2080 | |
2081 TemplateValueParameter *TemplateParameter::isTemplateValueParameter() | |
2082 { | |
2083 return NULL; | |
2084 } | |
2085 | |
2086 TemplateAliasParameter *TemplateParameter::isTemplateAliasParameter() | |
2087 { | |
2088 return NULL; | |
2089 } | |
2090 | |
2091 TemplateTupleParameter *TemplateParameter::isTemplateTupleParameter() | |
2092 { | |
2093 return NULL; | |
2094 } | |
2095 | |
2096 #if DMDV2 | |
2097 TemplateThisParameter *TemplateParameter::isTemplateThisParameter() | |
2098 { | |
2099 return NULL; | |
2100 } | |
2101 #endif | |
2102 | |
2103 /* ======================== TemplateTypeParameter =========================== */ | |
2104 | |
2105 // type-parameter | |
2106 | |
2107 TemplateTypeParameter::TemplateTypeParameter(Loc loc, Identifier *ident, Type *specType, | |
2108 Type *defaultType) | |
2109 : TemplateParameter(loc, ident) | |
2110 { | |
2111 this->ident = ident; | |
2112 this->specType = specType; | |
2113 this->defaultType = defaultType; | |
2114 } | |
2115 | |
2116 TemplateTypeParameter *TemplateTypeParameter::isTemplateTypeParameter() | |
2117 { | |
2118 return this; | |
2119 } | |
2120 | |
2121 TemplateParameter *TemplateTypeParameter::syntaxCopy() | |
2122 { | |
2123 TemplateTypeParameter *tp = new TemplateTypeParameter(loc, ident, specType, defaultType); | |
2124 if (tp->specType) | |
2125 tp->specType = specType->syntaxCopy(); | |
2126 if (defaultType) | |
2127 tp->defaultType = defaultType->syntaxCopy(); | |
2128 return tp; | |
2129 } | |
2130 | |
2131 void TemplateTypeParameter::declareParameter(Scope *sc) | |
2132 { | |
2133 //printf("TemplateTypeParameter::declareParameter('%s')\n", ident->toChars()); | |
2134 TypeIdentifier *ti = new TypeIdentifier(loc, ident); | |
2135 sparam = new AliasDeclaration(loc, ident, ti); | |
2136 if (!sc->insert(sparam)) | |
2137 error(loc, "parameter '%s' multiply defined", ident->toChars()); | |
2138 } | |
2139 | |
2140 void TemplateTypeParameter::semantic(Scope *sc) | |
2141 { | |
2142 //printf("TemplateTypeParameter::semantic('%s')\n", ident->toChars()); | |
2143 if (specType) | |
2144 { | |
2145 specType = specType->semantic(loc, sc); | |
2146 } | |
2147 #if 0 // Don't do semantic() until instantiation | |
2148 if (defaultType) | |
2149 { | |
2150 defaultType = defaultType->semantic(loc, sc); | |
2151 } | |
2152 #endif | |
2153 } | |
2154 | |
2155 /**************************************** | |
2156 * Determine if two TemplateParameters are the same | |
2157 * as far as TemplateDeclaration overloading goes. | |
2158 * Returns: | |
2159 * 1 match | |
2160 * 0 no match | |
2161 */ | |
2162 | |
2163 int TemplateTypeParameter::overloadMatch(TemplateParameter *tp) | |
2164 { | |
2165 TemplateTypeParameter *ttp = tp->isTemplateTypeParameter(); | |
2166 | |
2167 if (ttp) | |
2168 { | |
2169 if (specType != ttp->specType) | |
2170 goto Lnomatch; | |
2171 | |
2172 if (specType && !specType->equals(ttp->specType)) | |
2173 goto Lnomatch; | |
2174 | |
2175 return 1; // match | |
2176 } | |
2177 | |
2178 Lnomatch: | |
2179 return 0; | |
2180 } | |
2181 | |
2182 /******************************************* | |
2183 * Match to a particular TemplateParameter. | |
2184 * Input: | |
2185 * i i'th argument | |
2186 * tiargs[] actual arguments to template instance | |
2187 * parameters[] template parameters | |
2188 * dedtypes[] deduced arguments to template instance | |
2189 * *psparam set to symbol declared and initialized to dedtypes[i] | |
2190 */ | |
2191 | |
2192 MATCH TemplateTypeParameter::matchArg(Scope *sc, Objects *tiargs, | |
2193 int i, TemplateParameters *parameters, Objects *dedtypes, | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
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diff
changeset
|
2194 Declaration **psparam, int flags) |
336 | 2195 { |
2196 //printf("TemplateTypeParameter::matchArg()\n"); | |
2197 Type *t; | |
2198 Object *oarg; | |
2199 MATCH m = MATCHexact; | |
2200 Type *ta; | |
2201 | |
2202 if (i < tiargs->dim) | |
2203 oarg = (Object *)tiargs->data[i]; | |
2204 else | |
2205 { // Get default argument instead | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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664
diff
changeset
|
2206 oarg = defaultArg(loc, sc); |
336 | 2207 if (!oarg) |
2208 { assert(i < dedtypes->dim); | |
2209 // It might have already been deduced | |
2210 oarg = (Object *)dedtypes->data[i]; | |
2211 if (!oarg) | |
2212 goto Lnomatch; | |
2213 } | |
2214 } | |
2215 | |
2216 ta = isType(oarg); | |
2217 if (!ta) | |
2218 goto Lnomatch; | |
2219 //printf("ta is %s\n", ta->toChars()); | |
2220 | |
2221 t = (Type *)dedtypes->data[i]; | |
2222 | |
2223 if (specType) | |
2224 { | |
2225 //printf("\tcalling deduceType(): ta is %s, specType is %s\n", ta->toChars(), specType->toChars()); | |
2226 MATCH m2 = ta->deduceType(sc, specType, parameters, dedtypes); | |
2227 if (m2 == MATCHnomatch) | |
2228 { //printf("\tfailed deduceType\n"); | |
2229 goto Lnomatch; | |
2230 } | |
2231 | |
2232 if (m2 < m) | |
2233 m = m2; | |
2234 t = (Type *)dedtypes->data[i]; | |
2235 } | |
2236 else | |
2237 { | |
2238 // So that matches with specializations are better | |
2239 m = MATCHconvert; | |
2240 if (t) | |
2241 { // Must match already deduced type | |
2242 | |
2243 m = MATCHexact; | |
2244 if (!t->equals(ta)) | |
2245 { //printf("t = %s ta = %s\n", t->toChars(), ta->toChars()); | |
2246 goto Lnomatch; | |
2247 } | |
2248 } | |
2249 } | |
2250 | |
2251 if (!t) | |
2252 { | |
2253 dedtypes->data[i] = ta; | |
2254 t = ta; | |
2255 } | |
2256 *psparam = new AliasDeclaration(loc, ident, t); | |
2257 //printf("\tm = %d\n", m); | |
2258 return m; | |
2259 | |
2260 Lnomatch: | |
2261 *psparam = NULL; | |
2262 //printf("\tm = %d\n", MATCHnomatch); | |
2263 return MATCHnomatch; | |
2264 } | |
2265 | |
2266 | |
2267 void TemplateTypeParameter::print(Object *oarg, Object *oded) | |
2268 { | |
2269 printf(" %s\n", ident->toChars()); | |
2270 | |
2271 Type *t = isType(oarg); | |
2272 Type *ta = isType(oded); | |
2273 | |
2274 assert(ta); | |
2275 | |
2276 if (specType) | |
2277 printf("\tSpecialization: %s\n", specType->toChars()); | |
2278 if (defaultType) | |
2279 printf("\tDefault: %s\n", defaultType->toChars()); | |
2280 printf("\tArgument: %s\n", t ? t->toChars() : "NULL"); | |
2281 printf("\tDeduced Type: %s\n", ta->toChars()); | |
2282 } | |
2283 | |
2284 | |
2285 void TemplateTypeParameter::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
2286 { | |
2287 buf->writestring(ident->toChars()); | |
2288 if (specType) | |
2289 { | |
2290 buf->writestring(" : "); | |
2291 specType->toCBuffer(buf, NULL, hgs); | |
2292 } | |
2293 if (defaultType) | |
2294 { | |
2295 buf->writestring(" = "); | |
2296 defaultType->toCBuffer(buf, NULL, hgs); | |
2297 } | |
2298 } | |
2299 | |
2300 | |
2301 void *TemplateTypeParameter::dummyArg() | |
2302 { Type *t; | |
2303 | |
2304 if (specType) | |
2305 t = specType; | |
2306 else | |
2307 { // Use this for alias-parameter's too (?) | |
2308 t = new TypeIdentifier(loc, ident); | |
2309 } | |
2310 return (void *)t; | |
2311 } | |
2312 | |
2313 | |
2314 Object *TemplateTypeParameter::specialization() | |
2315 { | |
2316 return specType; | |
2317 } | |
2318 | |
2319 | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2320 Object *TemplateTypeParameter::defaultArg(Loc loc, Scope *sc) |
336 | 2321 { |
2322 Type *t; | |
2323 | |
2324 t = defaultType; | |
2325 if (t) | |
2326 { | |
2327 t = t->syntaxCopy(); | |
2328 t = t->semantic(loc, sc); | |
2329 } | |
2330 return t; | |
2331 } | |
2332 | |
2333 /* ======================== TemplateThisParameter =========================== */ | |
2334 | |
2335 #if DMDV2 | |
2336 // this-parameter | |
2337 | |
2338 TemplateThisParameter::TemplateThisParameter(Loc loc, Identifier *ident, | |
2339 Type *specType, | |
2340 Type *defaultType) | |
2341 : TemplateTypeParameter(loc, ident, specType, defaultType) | |
2342 { | |
2343 } | |
2344 | |
2345 TemplateThisParameter *TemplateThisParameter::isTemplateThisParameter() | |
2346 { | |
2347 return this; | |
2348 } | |
2349 | |
2350 TemplateParameter *TemplateThisParameter::syntaxCopy() | |
2351 { | |
2352 TemplateThisParameter *tp = new TemplateThisParameter(loc, ident, specType, defaultType); | |
2353 if (tp->specType) | |
2354 tp->specType = specType->syntaxCopy(); | |
2355 if (defaultType) | |
2356 tp->defaultType = defaultType->syntaxCopy(); | |
2357 return tp; | |
2358 } | |
2359 | |
2360 void TemplateThisParameter::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
2361 { | |
2362 buf->writestring("this "); | |
2363 TemplateTypeParameter::toCBuffer(buf, hgs); | |
2364 } | |
2365 #endif | |
2366 | |
2367 /* ======================== TemplateAliasParameter ========================== */ | |
2368 | |
2369 // alias-parameter | |
2370 | |
2371 Dsymbol *TemplateAliasParameter::sdummy = NULL; | |
2372 | |
2373 TemplateAliasParameter::TemplateAliasParameter(Loc loc, Identifier *ident, Type *specAliasT, Type *defaultAlias) | |
2374 : TemplateParameter(loc, ident) | |
2375 { | |
2376 this->ident = ident; | |
2377 this->specAliasT = specAliasT; | |
2378 this->defaultAlias = defaultAlias; | |
2379 | |
2380 this->specAlias = NULL; | |
2381 } | |
2382 | |
2383 TemplateAliasParameter *TemplateAliasParameter::isTemplateAliasParameter() | |
2384 { | |
2385 return this; | |
2386 } | |
2387 | |
2388 TemplateParameter *TemplateAliasParameter::syntaxCopy() | |
2389 { | |
2390 TemplateAliasParameter *tp = new TemplateAliasParameter(loc, ident, specAliasT, defaultAlias); | |
2391 if (tp->specAliasT) | |
2392 tp->specAliasT = specAliasT->syntaxCopy(); | |
2393 if (defaultAlias) | |
2394 tp->defaultAlias = defaultAlias->syntaxCopy(); | |
2395 return tp; | |
2396 } | |
2397 | |
2398 void TemplateAliasParameter::declareParameter(Scope *sc) | |
2399 { | |
2400 TypeIdentifier *ti = new TypeIdentifier(loc, ident); | |
2401 sparam = new AliasDeclaration(loc, ident, ti); | |
2402 if (!sc->insert(sparam)) | |
2403 error(loc, "parameter '%s' multiply defined", ident->toChars()); | |
2404 } | |
2405 | |
2406 void TemplateAliasParameter::semantic(Scope *sc) | |
2407 { | |
2408 if (specAliasT) | |
2409 { | |
2410 specAlias = specAliasT->toDsymbol(sc); | |
2411 if (!specAlias) | |
2412 error(loc, "%s is not a symbol", specAliasT->toChars()); | |
2413 } | |
2414 #if 0 // Don't do semantic() until instantiation | |
2415 if (defaultAlias) | |
2416 defaultAlias = defaultAlias->semantic(loc, sc); | |
2417 #endif | |
2418 } | |
2419 | |
2420 int TemplateAliasParameter::overloadMatch(TemplateParameter *tp) | |
2421 { | |
2422 TemplateAliasParameter *tap = tp->isTemplateAliasParameter(); | |
2423 | |
2424 if (tap) | |
2425 { | |
2426 if (specAlias != tap->specAlias) | |
2427 goto Lnomatch; | |
2428 | |
2429 return 1; // match | |
2430 } | |
2431 | |
2432 Lnomatch: | |
2433 return 0; | |
2434 } | |
2435 | |
2436 MATCH TemplateAliasParameter::matchArg(Scope *sc, | |
2437 Objects *tiargs, int i, TemplateParameters *parameters, Objects *dedtypes, | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2438 Declaration **psparam, int flags) |
336 | 2439 { |
2440 Dsymbol *sa; | |
2441 Object *oarg; | |
2442 Expression *ea; | |
2443 | |
2444 //printf("TemplateAliasParameter::matchArg()\n"); | |
2445 | |
2446 if (i < tiargs->dim) | |
2447 oarg = (Object *)tiargs->data[i]; | |
2448 else | |
2449 { // Get default argument instead | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2450 oarg = defaultArg(loc, sc); |
336 | 2451 if (!oarg) |
2452 { assert(i < dedtypes->dim); | |
2453 // It might have already been deduced | |
2454 oarg = (Object *)dedtypes->data[i]; | |
2455 if (!oarg) | |
2456 goto Lnomatch; | |
2457 } | |
2458 } | |
2459 | |
2460 sa = getDsymbol(oarg); | |
2461 if (!sa) | |
2462 goto Lnomatch; | |
2463 | |
2464 if (specAlias) | |
2465 { | |
2466 if (!sa || sa == sdummy) | |
2467 goto Lnomatch; | |
2468 if (sa != specAlias) | |
2469 goto Lnomatch; | |
2470 } | |
2471 else if (dedtypes->data[i]) | |
2472 { // Must match already deduced symbol | |
2473 Dsymbol *s = (Dsymbol *)dedtypes->data[i]; | |
2474 | |
2475 if (!sa || s != sa) | |
2476 goto Lnomatch; | |
2477 } | |
2478 dedtypes->data[i] = sa; | |
2479 | |
2480 *psparam = new AliasDeclaration(loc, ident, sa); | |
2481 return MATCHexact; | |
2482 | |
2483 Lnomatch: | |
2484 *psparam = NULL; | |
2485 return MATCHnomatch; | |
2486 } | |
2487 | |
2488 | |
2489 void TemplateAliasParameter::print(Object *oarg, Object *oded) | |
2490 { | |
2491 printf(" %s\n", ident->toChars()); | |
2492 | |
2493 Dsymbol *sa = isDsymbol(oded); | |
2494 assert(sa); | |
2495 | |
2496 printf("\tArgument alias: %s\n", sa->toChars()); | |
2497 } | |
2498 | |
2499 void TemplateAliasParameter::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
2500 { | |
2501 buf->writestring("alias "); | |
2502 buf->writestring(ident->toChars()); | |
2503 if (specAliasT) | |
2504 { | |
2505 buf->writestring(" : "); | |
2506 specAliasT->toCBuffer(buf, NULL, hgs); | |
2507 } | |
2508 if (defaultAlias) | |
2509 { | |
2510 buf->writestring(" = "); | |
2511 defaultAlias->toCBuffer(buf, NULL, hgs); | |
2512 } | |
2513 } | |
2514 | |
2515 | |
2516 void *TemplateAliasParameter::dummyArg() | |
2517 { Dsymbol *s; | |
2518 | |
2519 s = specAlias; | |
2520 if (!s) | |
2521 { | |
2522 if (!sdummy) | |
2523 sdummy = new Dsymbol(); | |
2524 s = sdummy; | |
2525 } | |
2526 return (void*)s; | |
2527 } | |
2528 | |
2529 | |
2530 Object *TemplateAliasParameter::specialization() | |
2531 { | |
2532 return specAliasT; | |
2533 } | |
2534 | |
2535 | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2536 Object *TemplateAliasParameter::defaultArg(Loc loc, Scope *sc) |
336 | 2537 { |
2538 Dsymbol *s = NULL; | |
2539 | |
2540 if (defaultAlias) | |
2541 { | |
2542 s = defaultAlias->toDsymbol(sc); | |
2543 if (!s) | |
2544 error("%s is not a symbol", defaultAlias->toChars()); | |
2545 } | |
2546 return s; | |
2547 } | |
2548 | |
2549 /* ======================== TemplateValueParameter ========================== */ | |
2550 | |
2551 // value-parameter | |
2552 | |
2553 Expression *TemplateValueParameter::edummy = NULL; | |
2554 | |
2555 TemplateValueParameter::TemplateValueParameter(Loc loc, Identifier *ident, Type *valType, | |
2556 Expression *specValue, Expression *defaultValue) | |
2557 : TemplateParameter(loc, ident) | |
2558 { | |
2559 this->ident = ident; | |
2560 this->valType = valType; | |
2561 this->specValue = specValue; | |
2562 this->defaultValue = defaultValue; | |
2563 } | |
2564 | |
2565 TemplateValueParameter *TemplateValueParameter::isTemplateValueParameter() | |
2566 { | |
2567 return this; | |
2568 } | |
2569 | |
2570 TemplateParameter *TemplateValueParameter::syntaxCopy() | |
2571 { | |
2572 TemplateValueParameter *tp = | |
2573 new TemplateValueParameter(loc, ident, valType, specValue, defaultValue); | |
2574 tp->valType = valType->syntaxCopy(); | |
2575 if (specValue) | |
2576 tp->specValue = specValue->syntaxCopy(); | |
2577 if (defaultValue) | |
2578 tp->defaultValue = defaultValue->syntaxCopy(); | |
2579 return tp; | |
2580 } | |
2581 | |
2582 void TemplateValueParameter::declareParameter(Scope *sc) | |
2583 { | |
2584 VarDeclaration *v = new VarDeclaration(loc, valType, ident, NULL); | |
2585 v->storage_class = STCtemplateparameter; | |
2586 if (!sc->insert(v)) | |
2587 error(loc, "parameter '%s' multiply defined", ident->toChars()); | |
2588 sparam = v; | |
2589 } | |
2590 | |
2591 void TemplateValueParameter::semantic(Scope *sc) | |
2592 { | |
2593 sparam->semantic(sc); | |
2594 valType = valType->semantic(loc, sc); | |
2595 if (!(valType->isintegral() || valType->isfloating() || valType->isString()) && | |
2596 valType->ty != Tident) | |
2597 error(loc, "arithmetic/string type expected for value-parameter, not %s", valType->toChars()); | |
2598 | |
2599 if (specValue) | |
2600 { Expression *e = specValue; | |
2601 | |
2602 e = e->semantic(sc); | |
2603 e = e->implicitCastTo(sc, valType); | |
2604 e = e->optimize(WANTvalue | WANTinterpret); | |
2605 if (e->op == TOKint64 || e->op == TOKfloat64 || | |
2606 e->op == TOKcomplex80 || e->op == TOKnull || e->op == TOKstring) | |
2607 specValue = e; | |
2608 //e->toInteger(); | |
2609 } | |
2610 | |
2611 #if 0 // defer semantic analysis to arg match | |
2612 if (defaultValue) | |
2613 { Expression *e = defaultValue; | |
2614 | |
2615 e = e->semantic(sc); | |
2616 e = e->implicitCastTo(sc, valType); | |
2617 e = e->optimize(WANTvalue | WANTinterpret); | |
2618 if (e->op == TOKint64) | |
2619 defaultValue = e; | |
2620 //e->toInteger(); | |
2621 } | |
2622 #endif | |
2623 } | |
2624 | |
2625 int TemplateValueParameter::overloadMatch(TemplateParameter *tp) | |
2626 { | |
2627 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
2628 | |
2629 if (tvp) | |
2630 { | |
2631 if (valType != tvp->valType) | |
2632 goto Lnomatch; | |
2633 | |
2634 if (valType && !valType->equals(tvp->valType)) | |
2635 goto Lnomatch; | |
2636 | |
2637 if (specValue != tvp->specValue) | |
2638 goto Lnomatch; | |
2639 | |
2640 return 1; // match | |
2641 } | |
2642 | |
2643 Lnomatch: | |
2644 return 0; | |
2645 } | |
2646 | |
2647 | |
2648 MATCH TemplateValueParameter::matchArg(Scope *sc, | |
2649 Objects *tiargs, int i, TemplateParameters *parameters, Objects *dedtypes, | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2650 Declaration **psparam, int flags) |
336 | 2651 { |
2652 //printf("TemplateValueParameter::matchArg()\n"); | |
2653 | |
2654 Initializer *init; | |
2655 Declaration *sparam; | |
2656 MATCH m = MATCHexact; | |
2657 Expression *ei; | |
2658 Object *oarg; | |
2659 | |
2660 if (i < tiargs->dim) | |
2661 oarg = (Object *)tiargs->data[i]; | |
2662 else | |
2663 { // Get default argument instead | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2664 oarg = defaultArg(loc, sc); |
336 | 2665 if (!oarg) |
2666 { assert(i < dedtypes->dim); | |
2667 // It might have already been deduced | |
2668 oarg = (Object *)dedtypes->data[i]; | |
2669 if (!oarg) | |
2670 goto Lnomatch; | |
2671 } | |
2672 } | |
2673 | |
2674 ei = isExpression(oarg); | |
2675 Type *vt; | |
2676 | |
2677 if (!ei && oarg) | |
2678 goto Lnomatch; | |
2679 | |
2680 if (specValue) | |
2681 { | |
2682 if (!ei || ei == edummy) | |
2683 goto Lnomatch; | |
2684 | |
2685 Expression *e = specValue; | |
2686 | |
2687 e = e->semantic(sc); | |
2688 e = e->implicitCastTo(sc, valType); | |
2689 e = e->optimize(WANTvalue | WANTinterpret); | |
2690 | |
2691 ei = ei->syntaxCopy(); | |
2692 ei = ei->semantic(sc); | |
2693 ei = ei->optimize(WANTvalue | WANTinterpret); | |
2694 //printf("ei: %s, %s\n", ei->toChars(), ei->type->toChars()); | |
2695 //printf("e : %s, %s\n", e->toChars(), e->type->toChars()); | |
2696 if (!ei->equals(e)) | |
2697 goto Lnomatch; | |
2698 } | |
2699 else if (dedtypes->data[i]) | |
2700 { // Must match already deduced value | |
2701 Expression *e = (Expression *)dedtypes->data[i]; | |
2702 | |
2703 if (!ei || !ei->equals(e)) | |
2704 goto Lnomatch; | |
2705 } | |
2706 Lmatch: | |
2707 //printf("valType: %s, ty = %d\n", valType->toChars(), valType->ty); | |
2708 vt = valType->semantic(0, sc); | |
2709 //printf("ei: %s, %s\n", ei->toChars(), ei->type->toChars()); | |
2710 if (ei->type) | |
2711 { | |
2712 m = (MATCH)ei->implicitConvTo(vt); | |
2713 //printf("m: %d\n", m); | |
2714 if (!m) | |
2715 goto Lnomatch; | |
2716 } | |
2717 dedtypes->data[i] = ei; | |
2718 | |
2719 init = new ExpInitializer(loc, ei); | |
2720 sparam = new VarDeclaration(loc, vt, ident, init); | |
2721 sparam->storage_class = STCconst; | |
2722 *psparam = sparam; | |
2723 return m; | |
2724 | |
2725 Lnomatch: | |
2726 //printf("\tno match\n"); | |
2727 *psparam = NULL; | |
2728 return MATCHnomatch; | |
2729 } | |
2730 | |
2731 | |
2732 void TemplateValueParameter::print(Object *oarg, Object *oded) | |
2733 { | |
2734 printf(" %s\n", ident->toChars()); | |
2735 | |
2736 Expression *ea = isExpression(oded); | |
2737 | |
2738 if (specValue) | |
2739 printf("\tSpecialization: %s\n", specValue->toChars()); | |
2740 printf("\tArgument Value: %s\n", ea ? ea->toChars() : "NULL"); | |
2741 } | |
2742 | |
2743 | |
2744 void TemplateValueParameter::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
2745 { | |
2746 valType->toCBuffer(buf, ident, hgs); | |
2747 if (specValue) | |
2748 { | |
2749 buf->writestring(" : "); | |
2750 specValue->toCBuffer(buf, hgs); | |
2751 } | |
2752 if (defaultValue) | |
2753 { | |
2754 buf->writestring(" = "); | |
2755 defaultValue->toCBuffer(buf, hgs); | |
2756 } | |
2757 } | |
2758 | |
2759 | |
2760 void *TemplateValueParameter::dummyArg() | |
2761 { Expression *e; | |
2762 | |
2763 e = specValue; | |
2764 if (!e) | |
2765 { | |
2766 // Create a dummy value | |
2767 if (!edummy) | |
2768 edummy = valType->defaultInit(); | |
2769 e = edummy; | |
2770 } | |
2771 return (void *)e; | |
2772 } | |
2773 | |
2774 | |
2775 Object *TemplateValueParameter::specialization() | |
2776 { | |
2777 return specValue; | |
2778 } | |
2779 | |
2780 | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2781 Object *TemplateValueParameter::defaultArg(Loc loc, Scope *sc) |
336 | 2782 { |
2783 Expression *e = defaultValue; | |
2784 if (e) | |
2785 { | |
2786 e = e->syntaxCopy(); | |
2787 e = e->semantic(sc); | |
2788 #if DMDV2 | |
2789 if (e->op == TOKdefault) | |
2790 { DefaultInitExp *de = (DefaultInitExp *)e; | |
2791 e = de->resolve(loc, sc); | |
2792 } | |
2793 #endif | |
2794 } | |
2795 return e; | |
2796 } | |
2797 | |
2798 /* ======================== TemplateTupleParameter ========================== */ | |
2799 | |
2800 // variadic-parameter | |
2801 | |
2802 TemplateTupleParameter::TemplateTupleParameter(Loc loc, Identifier *ident) | |
2803 : TemplateParameter(loc, ident) | |
2804 { | |
2805 this->ident = ident; | |
2806 } | |
2807 | |
2808 TemplateTupleParameter *TemplateTupleParameter::isTemplateTupleParameter() | |
2809 { | |
2810 return this; | |
2811 } | |
2812 | |
2813 TemplateParameter *TemplateTupleParameter::syntaxCopy() | |
2814 { | |
2815 TemplateTupleParameter *tp = new TemplateTupleParameter(loc, ident); | |
2816 return tp; | |
2817 } | |
2818 | |
2819 void TemplateTupleParameter::declareParameter(Scope *sc) | |
2820 { | |
2821 TypeIdentifier *ti = new TypeIdentifier(loc, ident); | |
2822 sparam = new AliasDeclaration(loc, ident, ti); | |
2823 if (!sc->insert(sparam)) | |
2824 error(loc, "parameter '%s' multiply defined", ident->toChars()); | |
2825 } | |
2826 | |
2827 void TemplateTupleParameter::semantic(Scope *sc) | |
2828 { | |
2829 } | |
2830 | |
2831 int TemplateTupleParameter::overloadMatch(TemplateParameter *tp) | |
2832 { | |
2833 TemplateTupleParameter *tvp = tp->isTemplateTupleParameter(); | |
2834 | |
2835 if (tvp) | |
2836 { | |
2837 return 1; // match | |
2838 } | |
2839 | |
2840 Lnomatch: | |
2841 return 0; | |
2842 } | |
2843 | |
2844 MATCH TemplateTupleParameter::matchArg(Scope *sc, | |
2845 Objects *tiargs, int i, TemplateParameters *parameters, | |
2846 Objects *dedtypes, | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2847 Declaration **psparam, int flags) |
336 | 2848 { |
2849 //printf("TemplateTupleParameter::matchArg()\n"); | |
2850 | |
2851 /* The rest of the actual arguments (tiargs[]) form the match | |
2852 * for the variadic parameter. | |
2853 */ | |
2854 assert(i + 1 == dedtypes->dim); // must be the last one | |
2855 Tuple *ovar; | |
2856 if (i + 1 == tiargs->dim && isTuple((Object *)tiargs->data[i])) | |
2857 ovar = isTuple((Object *)tiargs->data[i]); | |
2858 else | |
2859 { | |
2860 ovar = new Tuple(); | |
2861 //printf("ovar = %p\n", ovar); | |
2862 if (i < tiargs->dim) | |
2863 { | |
2864 //printf("i = %d, tiargs->dim = %d\n", i, tiargs->dim); | |
2865 ovar->objects.setDim(tiargs->dim - i); | |
2866 for (size_t j = 0; j < ovar->objects.dim; j++) | |
2867 ovar->objects.data[j] = tiargs->data[i + j]; | |
2868 } | |
2869 } | |
2870 *psparam = new TupleDeclaration(loc, ident, &ovar->objects); | |
2871 dedtypes->data[i] = (void *)ovar; | |
2872 return MATCHexact; | |
2873 } | |
2874 | |
2875 | |
2876 void TemplateTupleParameter::print(Object *oarg, Object *oded) | |
2877 { | |
2878 printf(" %s... [", ident->toChars()); | |
2879 Tuple *v = isTuple(oded); | |
2880 assert(v); | |
2881 | |
2882 //printf("|%d| ", v->objects.dim); | |
2883 for (int i = 0; i < v->objects.dim; i++) | |
2884 { | |
2885 if (i) | |
2886 printf(", "); | |
2887 | |
2888 Object *o = (Object *)v->objects.data[i]; | |
2889 | |
2890 Dsymbol *sa = isDsymbol(o); | |
2891 if (sa) | |
2892 printf("alias: %s", sa->toChars()); | |
2893 | |
2894 Type *ta = isType(o); | |
2895 if (ta) | |
2896 printf("type: %s", ta->toChars()); | |
2897 | |
2898 Expression *ea = isExpression(o); | |
2899 if (ea) | |
2900 printf("exp: %s", ea->toChars()); | |
2901 | |
2902 assert(!isTuple(o)); // no nested Tuple arguments | |
2903 } | |
2904 | |
2905 printf("]\n"); | |
2906 } | |
2907 | |
2908 void TemplateTupleParameter::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
2909 { | |
2910 buf->writestring(ident->toChars()); | |
2911 buf->writestring("..."); | |
2912 } | |
2913 | |
2914 | |
2915 void *TemplateTupleParameter::dummyArg() | |
2916 { | |
2917 return NULL; | |
2918 } | |
2919 | |
2920 | |
2921 Object *TemplateTupleParameter::specialization() | |
2922 { | |
2923 return NULL; | |
2924 } | |
2925 | |
2926 | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2927 Object *TemplateTupleParameter::defaultArg(Loc loc, Scope *sc) |
336 | 2928 { |
2929 return NULL; | |
2930 } | |
2931 | |
2932 /* ======================== TemplateInstance ================================ */ | |
2933 | |
2934 TemplateInstance::TemplateInstance(Loc loc, Identifier *ident) | |
2935 : ScopeDsymbol(NULL) | |
2936 { | |
2937 #if LOG | |
2938 printf("TemplateInstance(this = %p, ident = '%s')\n", this, ident ? ident->toChars() : "null"); | |
2939 #endif | |
2940 this->loc = loc; | |
2941 this->name = ident; | |
2942 this->tiargs = NULL; | |
2943 this->tempdecl = NULL; | |
2944 this->inst = NULL; | |
2945 this->argsym = NULL; | |
2946 this->aliasdecl = NULL; | |
2947 this->semanticdone = 0; | |
2948 this->semantictiargsdone = 0; | |
2949 this->withsym = NULL; | |
2950 this->nest = 0; | |
2951 this->havetempdecl = 0; | |
2952 this->isnested = NULL; | |
2953 this->errors = 0; | |
948
780530d1cad3
Revert templates to old behavior.
Christian Kamm <kamm incasoftware de>
parents:
946
diff
changeset
|
2954 |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
2955 #if IN_LLVM |
948
780530d1cad3
Revert templates to old behavior.
Christian Kamm <kamm incasoftware de>
parents:
946
diff
changeset
|
2956 // LDC |
1067
7ce8355fbcc6
Improved template emission control for singleobj building.
Christian Kamm <kamm incasoftware de>
parents:
948
diff
changeset
|
2957 this->emittedInModule = NULL; |
561
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
2958 this->tinst = NULL; |
948
780530d1cad3
Revert templates to old behavior.
Christian Kamm <kamm incasoftware de>
parents:
946
diff
changeset
|
2959 this->tmodule = NULL; |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
2960 #endif |
336 | 2961 } |
2962 | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2963 /***************** |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2964 * This constructor is only called when we figured out which function |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2965 * template to instantiate. |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2966 */ |
336 | 2967 |
2968 TemplateInstance::TemplateInstance(Loc loc, TemplateDeclaration *td, Objects *tiargs) | |
2969 : ScopeDsymbol(NULL) | |
2970 { | |
2971 #if LOG | |
2972 printf("TemplateInstance(this = %p, tempdecl = '%s')\n", this, td->toChars()); | |
2973 #endif | |
2974 this->loc = loc; | |
2975 this->name = td->ident; | |
2976 this->tiargs = tiargs; | |
2977 this->tempdecl = td; | |
2978 this->inst = NULL; | |
2979 this->argsym = NULL; | |
2980 this->aliasdecl = NULL; | |
2981 this->semanticdone = 0; | |
2982 this->semantictiargsdone = 1; | |
2983 this->withsym = NULL; | |
2984 this->nest = 0; | |
2985 this->havetempdecl = 1; | |
2986 this->isnested = NULL; | |
2987 this->errors = 0; | |
940
39519a1ff603
Changed the way LDC determines if a template instantiation needs to get a definition, seems to speed up compile times quite a bit in some cases.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
876
diff
changeset
|
2988 |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
2989 #if IN_LLVM |
940
39519a1ff603
Changed the way LDC determines if a template instantiation needs to get a definition, seems to speed up compile times quite a bit in some cases.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
876
diff
changeset
|
2990 // LDC |
561
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
2991 this->tinst = NULL; |
940
39519a1ff603
Changed the way LDC determines if a template instantiation needs to get a definition, seems to speed up compile times quite a bit in some cases.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
876
diff
changeset
|
2992 this->tmodule = NULL; |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
2993 #endif |
336 | 2994 |
2995 assert((size_t)tempdecl->scope > 0x10000); | |
2996 } | |
2997 | |
2998 | |
2999 Objects *TemplateInstance::arraySyntaxCopy(Objects *objs) | |
3000 { | |
3001 Objects *a = NULL; | |
3002 if (objs) | |
3003 { a = new Objects(); | |
3004 a->setDim(objs->dim); | |
3005 for (size_t i = 0; i < objs->dim; i++) | |
3006 { | |
3007 Type *ta = isType((Object *)objs->data[i]); | |
3008 if (ta) | |
3009 a->data[i] = ta->syntaxCopy(); | |
3010 else | |
3011 { | |
3012 Expression *ea = isExpression((Object *)objs->data[i]); | |
3013 assert(ea); | |
3014 a->data[i] = ea->syntaxCopy(); | |
3015 } | |
3016 } | |
3017 } | |
3018 return a; | |
3019 } | |
3020 | |
3021 Dsymbol *TemplateInstance::syntaxCopy(Dsymbol *s) | |
3022 { | |
3023 TemplateInstance *ti; | |
3024 | |
3025 if (s) | |
3026 ti = (TemplateInstance *)s; | |
3027 else | |
3028 ti = new TemplateInstance(loc, name); | |
3029 | |
3030 ti->tiargs = arraySyntaxCopy(tiargs); | |
3031 | |
3032 ScopeDsymbol::syntaxCopy(ti); | |
3033 return ti; | |
3034 } | |
3035 | |
3036 | |
3037 void TemplateInstance::semantic(Scope *sc) | |
3038 { | |
3039 if (global.errors) | |
3040 { | |
3041 if (!global.gag) | |
3042 { | |
3043 /* Trying to soldier on rarely generates useful messages | |
3044 * at this point. | |
3045 */ | |
3046 fatal(); | |
3047 } | |
3048 return; | |
3049 } | |
3050 #if LOG | |
3051 printf("\n+TemplateInstance::semantic('%s', this=%p)\n", toChars(), this); | |
3052 #endif | |
3053 if (inst) // if semantic() was already run | |
3054 { | |
3055 #if LOG | |
3056 printf("-TemplateInstance::semantic('%s', this=%p) already run\n", inst->toChars(), inst); | |
3057 #endif | |
3058 return; | |
3059 } | |
3060 | |
3061 if (semanticdone != 0) | |
3062 { | |
3063 error(loc, "recursive template expansion"); | |
3064 // inst = this; | |
3065 return; | |
3066 } | |
3067 semanticdone = 1; | |
3068 | |
561
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
3069 // get the enclosing template instance from the scope tinst |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
3070 tinst = sc->tinst; |
946
1714836f2c0b
Mostly rewrite debug info generation in terms of llvm/Analysis/DebugInfo.h.
Christian Kamm <kamm incasoftware de>
parents:
940
diff
changeset
|
3071 |
1714836f2c0b
Mostly rewrite debug info generation in terms of llvm/Analysis/DebugInfo.h.
Christian Kamm <kamm incasoftware de>
parents:
940
diff
changeset
|
3072 // get the module of the outermost enclosing instantiation |
1714836f2c0b
Mostly rewrite debug info generation in terms of llvm/Analysis/DebugInfo.h.
Christian Kamm <kamm incasoftware de>
parents:
940
diff
changeset
|
3073 if (tinst) |
1714836f2c0b
Mostly rewrite debug info generation in terms of llvm/Analysis/DebugInfo.h.
Christian Kamm <kamm incasoftware de>
parents:
940
diff
changeset
|
3074 tmodule = tinst->tmodule; |
1714836f2c0b
Mostly rewrite debug info generation in terms of llvm/Analysis/DebugInfo.h.
Christian Kamm <kamm incasoftware de>
parents:
940
diff
changeset
|
3075 else |
1714836f2c0b
Mostly rewrite debug info generation in terms of llvm/Analysis/DebugInfo.h.
Christian Kamm <kamm incasoftware de>
parents:
940
diff
changeset
|
3076 tmodule = sc->module; |
948
780530d1cad3
Revert templates to old behavior.
Christian Kamm <kamm incasoftware de>
parents:
946
diff
changeset
|
3077 //printf("%s in %s\n", toChars(), tmodule->toChars()); |
561
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
3078 |
336 | 3079 #if LOG |
3080 printf("\tdo semantic\n"); | |
3081 #endif | |
3082 if (havetempdecl) | |
3083 { | |
3084 assert((size_t)tempdecl->scope > 0x10000); | |
3085 // Deduce tdtypes | |
3086 tdtypes.setDim(tempdecl->parameters->dim); | |
3087 if (!tempdecl->matchWithInstance(this, &tdtypes, 0)) | |
3088 { | |
3089 error("incompatible arguments for template instantiation"); | |
3090 inst = this; | |
3091 return; | |
3092 } | |
3093 } | |
3094 else | |
3095 { | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3096 /* Run semantic on each argument, place results in tiargs[] |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3097 * (if we havetempdecl, then tiargs is already evaluated) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3098 */ |
336 | 3099 semanticTiargs(sc); |
3100 | |
3101 tempdecl = findTemplateDeclaration(sc); | |
3102 if (tempdecl) | |
3103 tempdecl = findBestMatch(sc); | |
3104 if (!tempdecl || global.errors) | |
3105 { inst = this; | |
3106 //printf("error return %p, %d\n", tempdecl, global.errors); | |
3107 return; // error recovery | |
3108 } | |
3109 } | |
3110 | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3111 hasNestedArgs(tiargs); |
336 | 3112 |
3113 /* See if there is an existing TemplateInstantiation that already | |
3114 * implements the typeargs. If so, just refer to that one instead. | |
3115 */ | |
3116 | |
3117 for (size_t i = 0; i < tempdecl->instances.dim; i++) | |
3118 { | |
3119 TemplateInstance *ti = (TemplateInstance *)tempdecl->instances.data[i]; | |
3120 #if LOG | |
3121 printf("\t%s: checking for match with instance %d (%p): '%s'\n", toChars(), i, ti, ti->toChars()); | |
3122 #endif | |
3123 assert(tdtypes.dim == ti->tdtypes.dim); | |
3124 | |
3125 // Nesting must match | |
3126 if (isnested != ti->isnested) | |
3127 continue; | |
3128 #if 0 | |
3129 if (isnested && sc->parent != ti->parent) | |
3130 continue; | |
3131 #endif | |
3132 for (size_t j = 0; j < tdtypes.dim; j++) | |
3133 { Object *o1 = (Object *)tdtypes.data[j]; | |
3134 Object *o2 = (Object *)ti->tdtypes.data[j]; | |
3135 if (!match(o1, o2, tempdecl, sc)) | |
3136 goto L1; | |
3137 } | |
3138 | |
3139 // It's a match | |
3140 inst = ti; | |
3141 parent = ti->parent; | |
3142 #if LOG | |
3143 printf("\tit's a match with instance %p\n", inst); | |
3144 #endif | |
3145 return; | |
3146 | |
3147 L1: | |
3148 ; | |
3149 } | |
3150 | |
3151 /* So, we need to implement 'this' instance. | |
3152 */ | |
3153 #if LOG | |
3154 printf("\timplement template instance '%s'\n", toChars()); | |
3155 #endif | |
3156 unsigned errorsave = global.errors; | |
3157 inst = this; | |
3158 int tempdecl_instance_idx = tempdecl->instances.dim; | |
3159 tempdecl->instances.push(this); | |
3160 parent = tempdecl->parent; | |
3161 //printf("parent = '%s'\n", parent->kind()); | |
3162 | |
3163 ident = genIdent(); // need an identifier for name mangling purposes. | |
3164 | |
3165 #if 1 | |
3166 if (isnested) | |
3167 parent = isnested; | |
3168 #endif | |
3169 //printf("parent = '%s'\n", parent->kind()); | |
3170 | |
3171 // Add 'this' to the enclosing scope's members[] so the semantic routines | |
3172 // will get called on the instance members | |
3173 #if 1 | |
3174 int dosemantic3 = 0; | |
3175 { Array *a; | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3176 |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3177 Scope *scx = sc; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3178 #if 0 |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3179 for (scx = sc; scx; scx = scx->enclosing) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3180 if (scx->scopesym) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3181 break; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3182 #endif |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3183 |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3184 //if (scx && scx->scopesym) printf("3: scx is %s %s\n", scx->scopesym->kind(), scx->scopesym->toChars()); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3185 if (scx && scx->scopesym && |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3186 scx->scopesym->members && !scx->scopesym->isTemplateMixin() |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3187 #if 1 // removed because it bloated compile times |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3188 /* The problem is if A imports B, and B imports A, and both A |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3189 * and B instantiate the same template, does the compilation of A |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3190 * or the compilation of B do the actual instantiation? |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3191 * |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3192 * see bugzilla 2500. |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3193 */ |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3194 && !scx->module->selfImports() |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3195 #endif |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3196 ) |
336 | 3197 { |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3198 //printf("\t1: adding to %s %s\n", scx->scopesym->kind(), scx->scopesym->toChars()); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3199 a = scx->scopesym->members; |
336 | 3200 } |
3201 else | |
3202 { Module *m = sc->module->importedFrom; | |
3203 //printf("\t2: adding to module %s instead of module %s\n", m->toChars(), sc->module->toChars()); | |
3204 a = m->members; | |
3205 if (m->semanticdone >= 3) | |
3206 dosemantic3 = 1; | |
3207 } | |
3208 for (int i = 0; 1; i++) | |
3209 { | |
3210 if (i == a->dim) | |
3211 { | |
3212 a->push(this); | |
3213 break; | |
3214 } | |
3215 if (this == (Dsymbol *)a->data[i]) // if already in Array | |
3216 break; | |
3217 } | |
3218 } | |
3219 #endif | |
3220 | |
3221 // Copy the syntax trees from the TemplateDeclaration | |
3222 members = Dsymbol::arraySyntaxCopy(tempdecl->members); | |
3223 | |
3224 // Create our own scope for the template parameters | |
3225 Scope *scope = tempdecl->scope; | |
3226 if (!scope) | |
3227 { | |
3228 error("forward reference to template declaration %s\n", tempdecl->toChars()); | |
3229 return; | |
3230 } | |
3231 | |
3232 #if LOG | |
3233 printf("\tcreate scope for template parameters '%s'\n", toChars()); | |
3234 #endif | |
3235 argsym = new ScopeDsymbol(); | |
3236 argsym->parent = scope->parent; | |
3237 scope = scope->push(argsym); | |
3238 | |
3239 // Declare each template parameter as an alias for the argument type | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3240 Scope *paramscope = scope->push(); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3241 paramscope->stc = 0; |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3242 declareParameters(paramscope); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3243 paramscope->pop(); |
336 | 3244 |
3245 // Add members of template instance to template instance symbol table | |
3246 // parent = scope->scopesym; | |
3247 symtab = new DsymbolTable(); | |
3248 int memnum = 0; | |
3249 for (int i = 0; i < members->dim; i++) | |
3250 { | |
3251 Dsymbol *s = (Dsymbol *)members->data[i]; | |
3252 #if LOG | |
3253 printf("\t[%d] adding member '%s' %p kind %s to '%s', memnum = %d\n", i, s->toChars(), s, s->kind(), this->toChars(), memnum); | |
3254 #endif | |
3255 memnum |= s->addMember(scope, this, memnum); | |
3256 } | |
3257 #if LOG | |
3258 printf("adding members done\n"); | |
3259 #endif | |
3260 | |
3261 /* See if there is only one member of template instance, and that | |
3262 * member has the same name as the template instance. | |
3263 * If so, this template instance becomes an alias for that member. | |
3264 */ | |
3265 //printf("members->dim = %d\n", members->dim); | |
3266 if (members->dim) | |
3267 { | |
3268 Dsymbol *s; | |
3269 if (Dsymbol::oneMembers(members, &s) && s) | |
3270 { | |
3271 //printf("s->kind = '%s'\n", s->kind()); | |
3272 //s->print(); | |
3273 //printf("'%s', '%s'\n", s->ident->toChars(), tempdecl->ident->toChars()); | |
3274 if (s->ident && s->ident->equals(tempdecl->ident)) | |
3275 { | |
3276 //printf("setting aliasdecl\n"); | |
3277 aliasdecl = new AliasDeclaration(loc, s->ident, s); | |
1089
d33b0d4b816a
Make sure instantiations of template intrinsics are marked as intrinsics.
Frits van Bommel <fvbommel wxs.nl>
parents:
1067
diff
changeset
|
3278 |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
3279 #if IN_LLVM |
1089
d33b0d4b816a
Make sure instantiations of template intrinsics are marked as intrinsics.
Frits van Bommel <fvbommel wxs.nl>
parents:
1067
diff
changeset
|
3280 // LDC propagate internal information |
d33b0d4b816a
Make sure instantiations of template intrinsics are marked as intrinsics.
Frits van Bommel <fvbommel wxs.nl>
parents:
1067
diff
changeset
|
3281 if (tempdecl->llvmInternal) { |
d33b0d4b816a
Make sure instantiations of template intrinsics are marked as intrinsics.
Frits van Bommel <fvbommel wxs.nl>
parents:
1067
diff
changeset
|
3282 s->llvmInternal = tempdecl->llvmInternal; |
d33b0d4b816a
Make sure instantiations of template intrinsics are marked as intrinsics.
Frits van Bommel <fvbommel wxs.nl>
parents:
1067
diff
changeset
|
3283 if (FuncDeclaration* fd = s->isFuncDeclaration()) { |
d33b0d4b816a
Make sure instantiations of template intrinsics are marked as intrinsics.
Frits van Bommel <fvbommel wxs.nl>
parents:
1067
diff
changeset
|
3284 fd->intrinsicName = tempdecl->intrinsicName; |
d33b0d4b816a
Make sure instantiations of template intrinsics are marked as intrinsics.
Frits van Bommel <fvbommel wxs.nl>
parents:
1067
diff
changeset
|
3285 } |
d33b0d4b816a
Make sure instantiations of template intrinsics are marked as intrinsics.
Frits van Bommel <fvbommel wxs.nl>
parents:
1067
diff
changeset
|
3286 } |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
3287 #endif |
336 | 3288 } |
3289 } | |
3290 } | |
3291 | |
3292 // Do semantic() analysis on template instance members | |
3293 #if LOG | |
3294 printf("\tdo semantic() on template instance members '%s'\n", toChars()); | |
3295 #endif | |
3296 Scope *sc2; | |
3297 sc2 = scope->push(this); | |
3298 //printf("isnested = %d, sc->parent = %s\n", isnested, sc->parent->toChars()); | |
3299 sc2->parent = /*isnested ? sc->parent :*/ this; | |
561
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
3300 sc2->tinst = this; |
336 | 3301 |
3302 #if !IN_LLVM | |
3303 #if _WIN32 | |
3304 __try | |
3305 { | |
3306 #endif | |
3307 #endif | |
3308 for (int i = 0; i < members->dim; i++) | |
3309 { | |
3310 Dsymbol *s = (Dsymbol *)members->data[i]; | |
3311 //printf("\t[%d] semantic on '%s' %p kind %s in '%s'\n", i, s->toChars(), s, s->kind(), this->toChars()); | |
3312 //printf("test: isnested = %d, sc2->parent = %s\n", isnested, sc2->parent->toChars()); | |
3313 // if (isnested) | |
3314 // s->parent = sc->parent; | |
3315 //printf("test3: isnested = %d, s->parent = %s\n", isnested, s->parent->toChars()); | |
3316 s->semantic(sc2); | |
3317 //printf("test4: isnested = %d, s->parent = %s\n", isnested, s->parent->toChars()); | |
3318 sc2->module->runDeferredSemantic(); | |
3319 } | |
3320 #if !IN_LLVM | |
3321 #if _WIN32 | |
3322 } | |
3323 __except (__ehfilter(GetExceptionInformation())) | |
3324 { | |
3325 global.gag = 0; // ensure error message gets printed | |
3326 error("recursive expansion"); | |
3327 fatal(); | |
3328 } | |
3329 #endif | |
3330 #endif | |
3331 | |
3332 /* If any of the instantiation members didn't get semantic() run | |
3333 * on them due to forward references, we cannot run semantic2() | |
3334 * or semantic3() yet. | |
3335 */ | |
3336 for (size_t i = 0; i < Module::deferred.dim; i++) | |
3337 { Dsymbol *sd = (Dsymbol *)Module::deferred.data[i]; | |
3338 | |
3339 if (sd->parent == this) | |
3340 goto Laftersemantic; | |
3341 } | |
3342 | |
3343 /* The problem is when to parse the initializer for a variable. | |
3344 * Perhaps VarDeclaration::semantic() should do it like it does | |
3345 * for initializers inside a function. | |
3346 */ | |
3347 // if (sc->parent->isFuncDeclaration()) | |
3348 | |
3349 /* BUG 782: this has problems if the classes this depends on | |
3350 * are forward referenced. Find a way to defer semantic() | |
3351 * on this template. | |
3352 */ | |
3353 semantic2(sc2); | |
3354 | |
3355 if (sc->func || dosemantic3) | |
3356 { | |
3357 semantic3(sc2); | |
3358 } | |
3359 | |
3360 Laftersemantic: | |
3361 sc2->pop(); | |
3362 | |
3363 scope->pop(); | |
3364 | |
3365 // Give additional context info if error occurred during instantiation | |
3366 if (global.errors != errorsave) | |
3367 { | |
3368 error("error instantiating"); | |
561
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
3369 if(tinst) |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
3370 tinst->printInstantiationTrace(); |
336 | 3371 errors = 1; |
3372 if (global.gag) | |
3373 tempdecl->instances.remove(tempdecl_instance_idx); | |
3374 } | |
3375 | |
3376 #if LOG | |
3377 printf("-TemplateInstance::semantic('%s', this=%p)\n", toChars(), this); | |
3378 #endif | |
3379 } | |
3380 | |
3381 | |
3382 void TemplateInstance::semanticTiargs(Scope *sc) | |
3383 { | |
3384 //printf("+TemplateInstance::semanticTiargs() %s\n", toChars()); | |
3385 if (semantictiargsdone) | |
3386 return; | |
3387 semantictiargsdone = 1; | |
3388 semanticTiargs(loc, sc, tiargs); | |
3389 } | |
3390 | |
3391 void TemplateInstance::semanticTiargs(Loc loc, Scope *sc, Objects *tiargs) | |
3392 { | |
3393 // Run semantic on each argument, place results in tiargs[] | |
3394 //printf("+TemplateInstance::semanticTiargs() %s\n", toChars()); | |
3395 if (!tiargs) | |
3396 return; | |
3397 for (size_t j = 0; j < tiargs->dim; j++) | |
3398 { | |
3399 Object *o = (Object *)tiargs->data[j]; | |
3400 Type *ta = isType(o); | |
3401 Expression *ea = isExpression(o); | |
3402 Dsymbol *sa = isDsymbol(o); | |
3403 | |
3404 //printf("1: tiargs->data[%d] = %p, %p, %p, ea=%p, ta=%p\n", j, o, isDsymbol(o), isTuple(o), ea, ta); | |
3405 if (ta) | |
3406 { | |
3407 //printf("type %s\n", ta->toChars()); | |
3408 // It might really be an Expression or an Alias | |
3409 ta->resolve(loc, sc, &ea, &ta, &sa); | |
3410 if (ea) | |
3411 { | |
3412 ea = ea->semantic(sc); | |
3413 ea = ea->optimize(WANTvalue | WANTinterpret); | |
3414 tiargs->data[j] = ea; | |
3415 } | |
3416 else if (sa) | |
3417 { tiargs->data[j] = sa; | |
3418 TupleDeclaration *d = sa->toAlias()->isTupleDeclaration(); | |
3419 if (d) | |
3420 { | |
3421 size_t dim = d->objects->dim; | |
3422 tiargs->remove(j); | |
3423 tiargs->insert(j, d->objects); | |
3424 j--; | |
3425 } | |
3426 } | |
3427 else if (ta) | |
3428 { | |
3429 if (ta->ty == Ttuple) | |
3430 { // Expand tuple | |
3431 TypeTuple *tt = (TypeTuple *)ta; | |
3432 size_t dim = tt->arguments->dim; | |
3433 tiargs->remove(j); | |
3434 if (dim) | |
3435 { tiargs->reserve(dim); | |
3436 for (size_t i = 0; i < dim; i++) | |
3437 { Argument *arg = (Argument *)tt->arguments->data[i]; | |
3438 tiargs->insert(j + i, arg->type); | |
3439 } | |
3440 } | |
3441 j--; | |
3442 } | |
3443 else | |
3444 tiargs->data[j] = ta; | |
3445 } | |
3446 else | |
3447 { | |
3448 assert(global.errors); | |
3449 tiargs->data[j] = Type::terror; | |
3450 } | |
3451 } | |
3452 else if (ea) | |
3453 { | |
3454 if (!ea) | |
3455 { assert(global.errors); | |
3456 ea = new IntegerExp(0); | |
3457 } | |
3458 assert(ea); | |
3459 ea = ea->semantic(sc); | |
3460 ea = ea->optimize(WANTvalue | WANTinterpret); | |
3461 tiargs->data[j] = ea; | |
3462 if (ea->op == TOKtype) | |
3463 tiargs->data[j] = ea->type; | |
3464 } | |
3465 else if (sa) | |
3466 { | |
3467 } | |
3468 else | |
3469 { | |
3470 assert(0); | |
3471 } | |
3472 //printf("1: tiargs->data[%d] = %p\n", j, tiargs->data[j]); | |
3473 } | |
3474 #if 0 | |
3475 printf("-TemplateInstance::semanticTiargs('%s', this=%p)\n", toChars(), this); | |
3476 for (size_t j = 0; j < tiargs->dim; j++) | |
3477 { | |
3478 Object *o = (Object *)tiargs->data[j]; | |
3479 Type *ta = isType(o); | |
3480 Expression *ea = isExpression(o); | |
3481 Dsymbol *sa = isDsymbol(o); | |
3482 Tuple *va = isTuple(o); | |
3483 | |
3484 printf("\ttiargs[%d] = ta %p, ea %p, sa %p, va %p\n", j, ta, ea, sa, va); | |
3485 } | |
3486 #endif | |
3487 } | |
3488 | |
3489 /********************************************** | |
3490 * Find template declaration corresponding to template instance. | |
3491 */ | |
3492 | |
3493 TemplateDeclaration *TemplateInstance::findTemplateDeclaration(Scope *sc) | |
3494 { | |
3495 //printf("TemplateInstance::findTemplateDeclaration() %s\n", toChars()); | |
3496 if (!tempdecl) | |
3497 { | |
3498 /* Given: | |
3499 * foo!( ... ) | |
3500 * figure out which TemplateDeclaration foo refers to. | |
3501 */ | |
3502 Dsymbol *s; | |
3503 Dsymbol *scopesym; | |
3504 Identifier *id; | |
3505 int i; | |
3506 | |
3507 id = name; | |
3508 s = sc->search(loc, id, &scopesym); | |
3509 if (!s) | |
3510 { error("identifier '%s' is not defined", id->toChars()); | |
3511 return NULL; | |
3512 } | |
3513 #if LOG | |
3514 printf("It's an instance of '%s' kind '%s'\n", s->toChars(), s->kind()); | |
3515 if (s->parent) | |
3516 printf("s->parent = '%s'\n", s->parent->toChars()); | |
3517 #endif | |
3518 withsym = scopesym->isWithScopeSymbol(); | |
3519 | |
3520 /* We might have found an alias within a template when | |
3521 * we really want the template. | |
3522 */ | |
3523 TemplateInstance *ti; | |
3524 if (s->parent && | |
3525 (ti = s->parent->isTemplateInstance()) != NULL) | |
3526 { | |
3527 if ( | |
3528 (ti->name == id || | |
3529 ti->toAlias()->ident == id) | |
3530 && | |
3531 ti->tempdecl) | |
3532 { | |
3533 /* This is so that one can refer to the enclosing | |
3534 * template, even if it has the same name as a member | |
3535 * of the template, if it has a !(arguments) | |
3536 */ | |
3537 tempdecl = ti->tempdecl; | |
3538 if (tempdecl->overroot) // if not start of overloaded list of TemplateDeclaration's | |
3539 tempdecl = tempdecl->overroot; // then get the start | |
3540 s = tempdecl; | |
3541 } | |
3542 } | |
3543 | |
3544 s = s->toAlias(); | |
3545 | |
3546 /* It should be a TemplateDeclaration, not some other symbol | |
3547 */ | |
3548 tempdecl = s->isTemplateDeclaration(); | |
3549 if (!tempdecl) | |
3550 { | |
3551 if (!s->parent && global.errors) | |
3552 return NULL; | |
3553 if (!s->parent && s->getType()) | |
3554 { Dsymbol *s2 = s->getType()->toDsymbol(sc); | |
3555 if (!s2) | |
3556 { | |
3557 error("%s is not a template declaration, it is a %s", id->toChars(), s->kind()); | |
3558 return NULL; | |
3559 } | |
3560 s = s2; | |
3561 } | |
3562 #ifdef DEBUG | |
3563 //if (!s->parent) printf("s = %s %s\n", s->kind(), s->toChars()); | |
3564 #endif | |
3565 //assert(s->parent); | |
3566 TemplateInstance *ti = s->parent ? s->parent->isTemplateInstance() : NULL; | |
3567 if (ti && | |
3568 (ti->name == id || | |
3569 ti->toAlias()->ident == id) | |
3570 && | |
3571 ti->tempdecl) | |
3572 { | |
3573 /* This is so that one can refer to the enclosing | |
3574 * template, even if it has the same name as a member | |
3575 * of the template, if it has a !(arguments) | |
3576 */ | |
3577 tempdecl = ti->tempdecl; | |
3578 if (tempdecl->overroot) // if not start of overloaded list of TemplateDeclaration's | |
3579 tempdecl = tempdecl->overroot; // then get the start | |
3580 } | |
3581 else | |
3582 { | |
3583 error("%s is not a template declaration, it is a %s", id->toChars(), s->kind()); | |
3584 return NULL; | |
3585 } | |
3586 } | |
3587 } | |
3588 else | |
3589 assert(tempdecl->isTemplateDeclaration()); | |
3590 return tempdecl; | |
3591 } | |
3592 | |
3593 TemplateDeclaration *TemplateInstance::findBestMatch(Scope *sc) | |
3594 { | |
3595 /* Since there can be multiple TemplateDeclaration's with the same | |
3596 * name, look for the best match. | |
3597 */ | |
3598 TemplateDeclaration *td_ambig = NULL; | |
3599 TemplateDeclaration *td_best = NULL; | |
3600 MATCH m_best = MATCHnomatch; | |
3601 Objects dedtypes; | |
3602 | |
3603 #if LOG | |
3604 printf("TemplateInstance::findBestMatch()\n"); | |
3605 #endif | |
3606 for (TemplateDeclaration *td = tempdecl; td; td = td->overnext) | |
3607 { | |
3608 MATCH m; | |
3609 | |
3610 //if (tiargs->dim) printf("2: tiargs->dim = %d, data[0] = %p\n", tiargs->dim, tiargs->data[0]); | |
3611 | |
3612 // If more arguments than parameters, | |
3613 // then this is no match. | |
3614 if (td->parameters->dim < tiargs->dim) | |
3615 { | |
3616 if (!td->isVariadic()) | |
3617 continue; | |
3618 } | |
3619 | |
3620 dedtypes.setDim(td->parameters->dim); | |
3621 dedtypes.zero(); | |
3622 if (!td->scope) | |
3623 { | |
3624 error("forward reference to template declaration %s", td->toChars()); | |
3625 return NULL; | |
3626 } | |
3627 m = td->matchWithInstance(this, &dedtypes, 0); | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3628 //printf("matchWithInstance = %d\n", m); |
336 | 3629 if (!m) // no match at all |
3630 continue; | |
3631 | |
3632 if (m < m_best) | |
3633 goto Ltd_best; | |
3634 if (m > m_best) | |
3635 goto Ltd; | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3636 |
336 | 3637 { |
3638 // Disambiguate by picking the most specialized TemplateDeclaration | |
3639 int c1 = td->leastAsSpecialized(td_best); | |
3640 int c2 = td_best->leastAsSpecialized(td); | |
3641 //printf("c1 = %d, c2 = %d\n", c1, c2); | |
3642 | |
3643 if (c1 > c2) | |
3644 goto Ltd; | |
3645 else if (c1 < c2) | |
3646 goto Ltd_best; | |
3647 else | |
3648 goto Lambig; | |
3649 } | |
3650 | |
3651 Lambig: // td_best and td are ambiguous | |
3652 td_ambig = td; | |
3653 continue; | |
3654 | |
3655 Ltd_best: // td_best is the best match so far | |
3656 td_ambig = NULL; | |
3657 continue; | |
3658 | |
3659 Ltd: // td is the new best match | |
3660 td_ambig = NULL; | |
3661 td_best = td; | |
3662 m_best = m; | |
3663 tdtypes.setDim(dedtypes.dim); | |
3664 memcpy(tdtypes.data, dedtypes.data, tdtypes.dim * sizeof(void *)); | |
3665 continue; | |
3666 } | |
3667 | |
3668 if (!td_best) | |
3669 { | |
3670 error("%s does not match any template declaration", toChars()); | |
3671 return NULL; | |
3672 } | |
3673 if (td_ambig) | |
3674 { | |
3675 error("%s matches more than one template declaration, %s and %s", | |
3676 toChars(), td_best->toChars(), td_ambig->toChars()); | |
3677 } | |
3678 | |
3679 /* The best match is td_best | |
3680 */ | |
3681 tempdecl = td_best; | |
3682 | |
3683 #if 0 | |
3684 /* Cast any value arguments to be same type as value parameter | |
3685 */ | |
3686 for (size_t i = 0; i < tiargs->dim; i++) | |
3687 { Object *o = (Object *)tiargs->data[i]; | |
3688 Expression *ea = isExpression(o); // value argument | |
3689 TemplateParameter *tp = (TemplateParameter *)tempdecl->parameters->data[i]; | |
3690 assert(tp); | |
3691 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
3692 if (tvp) | |
3693 { | |
3694 assert(ea); | |
3695 ea = ea->castTo(tvp->valType); | |
3696 ea = ea->optimize(WANTvalue | WANTinterpret); | |
3697 tiargs->data[i] = (Object *)ea; | |
3698 } | |
3699 } | |
3700 #endif | |
3701 | |
3702 #if LOG | |
3703 printf("\tIt's a match with template declaration '%s'\n", tempdecl->toChars()); | |
3704 #endif | |
3705 return tempdecl; | |
3706 } | |
3707 | |
3708 | |
3709 /***************************************** | |
3710 * Determines if a TemplateInstance will need a nested | |
3711 * generation of the TemplateDeclaration. | |
3712 */ | |
3713 | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3714 int TemplateInstance::hasNestedArgs(Objects *args) |
336 | 3715 { int nested = 0; |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3716 //printf("TemplateInstance::hasNestedArgs('%s')\n", tempdecl->ident->toChars()); |
336 | 3717 |
3718 /* A nested instance happens when an argument references a local | |
3719 * symbol that is on the stack. | |
3720 */ | |
3721 for (size_t i = 0; i < args->dim; i++) | |
3722 { Object *o = (Object *)args->data[i]; | |
3723 Expression *ea = isExpression(o); | |
3724 Dsymbol *sa = isDsymbol(o); | |
3725 Tuple *va = isTuple(o); | |
3726 if (ea) | |
3727 { | |
3728 if (ea->op == TOKvar) | |
3729 { | |
3730 sa = ((VarExp *)ea)->var; | |
3731 goto Lsa; | |
3732 } | |
3733 if (ea->op == TOKfunction) | |
3734 { | |
3735 sa = ((FuncExp *)ea)->fd; | |
3736 goto Lsa; | |
3737 } | |
3738 } | |
3739 else if (sa) | |
3740 { | |
3741 Lsa: | |
3742 Declaration *d = sa->isDeclaration(); | |
3743 if (d && !d->isDataseg() && | |
3744 #if DMDV2 | |
3745 !(d->storage_class & STCmanifest) && | |
3746 #endif | |
3747 (!d->isFuncDeclaration() || d->isFuncDeclaration()->isNested()) && | |
3748 !isTemplateMixin()) | |
3749 { | |
3750 // if module level template | |
3751 if (tempdecl->toParent()->isModule()) | |
3752 { Dsymbol *dparent = d->toParent(); | |
3753 if (!isnested) | |
3754 isnested = dparent; | |
3755 else if (isnested != dparent) | |
3756 { | |
3757 /* Select the more deeply nested of the two. | |
3758 * Error if one is not nested inside the other. | |
3759 */ | |
3760 for (Dsymbol *p = isnested; p; p = p->parent) | |
3761 { | |
3762 if (p == dparent) | |
3763 goto L1; // isnested is most nested | |
3764 } | |
876
27a379f288bf
Merged DMD 1.039
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
875
diff
changeset
|
3765 for (Dsymbol *p = dparent; p; p = p->parent) |
336 | 3766 { |
3767 if (p == isnested) | |
3768 { isnested = dparent; | |
3769 goto L1; // dparent is most nested | |
3770 } | |
3771 } | |
876
27a379f288bf
Merged DMD 1.039
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
875
diff
changeset
|
3772 error("%s is nested in both %s and %s", |
27a379f288bf
Merged DMD 1.039
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
875
diff
changeset
|
3773 toChars(), isnested->toChars(), dparent->toChars()); |
336 | 3774 } |
3775 L1: | |
3776 //printf("\tnested inside %s\n", isnested->toChars()); | |
3777 nested |= 1; | |
3778 } | |
3779 else | |
3780 error("cannot use local '%s' as template parameter", d->toChars()); | |
3781 } | |
3782 } | |
3783 else if (va) | |
3784 { | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3785 nested |= hasNestedArgs(&va->objects); |
336 | 3786 } |
3787 } | |
3788 return nested; | |
3789 } | |
3790 | |
3791 /**************************************** | |
3792 * This instance needs an identifier for name mangling purposes. | |
3793 * Create one by taking the template declaration name and adding | |
3794 * the type signature for it. | |
3795 */ | |
3796 | |
3797 Identifier *TemplateInstance::genIdent() | |
3798 { OutBuffer buf; | |
3799 char *id; | |
3800 Objects *args; | |
3801 | |
3802 //printf("TemplateInstance::genIdent('%s')\n", tempdecl->ident->toChars()); | |
3803 id = tempdecl->ident->toChars(); | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3804 buf.printf("__T%zu%s", strlen(id), id); |
336 | 3805 args = tiargs; |
3806 for (int i = 0; i < args->dim; i++) | |
3807 { Object *o = (Object *)args->data[i]; | |
3808 Type *ta = isType(o); | |
3809 Expression *ea = isExpression(o); | |
3810 Dsymbol *sa = isDsymbol(o); | |
3811 Tuple *va = isTuple(o); | |
3812 //printf("\to %p ta %p ea %p sa %p va %p\n", o, ta, ea, sa, va); | |
3813 if (ta) | |
3814 { | |
3815 buf.writeByte('T'); | |
3816 if (ta->deco) | |
3817 buf.writestring(ta->deco); | |
3818 else | |
3819 { | |
3820 #ifdef DEBUG | |
3821 printf("ta = %d, %s\n", ta->ty, ta->toChars()); | |
3822 #endif | |
3823 assert(global.errors); | |
3824 } | |
3825 } | |
3826 else if (ea) | |
3827 { sinteger_t v; | |
3828 real_t r; | |
3829 | |
3830 if (ea->op == TOKvar) | |
3831 { | |
3832 sa = ((VarExp *)ea)->var; | |
3833 ea = NULL; | |
3834 goto Lsa; | |
3835 } | |
3836 if (ea->op == TOKfunction) | |
3837 { | |
3838 sa = ((FuncExp *)ea)->fd; | |
3839 ea = NULL; | |
3840 goto Lsa; | |
3841 } | |
3842 buf.writeByte('V'); | |
3843 if (ea->op == TOKtuple) | |
3844 { ea->error("tuple is not a valid template value argument"); | |
3845 continue; | |
3846 } | |
3847 #if 1 | |
3848 /* Use deco that matches what it would be for a function parameter | |
3849 */ | |
3850 buf.writestring(ea->type->deco); | |
3851 #else | |
3852 // Use type of parameter, not type of argument | |
3853 TemplateParameter *tp = (TemplateParameter *)tempdecl->parameters->data[i]; | |
3854 assert(tp); | |
3855 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
3856 assert(tvp); | |
3857 buf.writestring(tvp->valType->deco); | |
3858 #endif | |
3859 ea->toMangleBuffer(&buf); | |
3860 } | |
3861 else if (sa) | |
3862 { | |
3863 Lsa: | |
3864 buf.writeByte('S'); | |
3865 Declaration *d = sa->isDeclaration(); | |
3866 if (d && !d->type->deco) | |
3867 error("forward reference of %s", d->toChars()); | |
3868 else | |
3869 { | |
3870 char *p = sa->mangle(); | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3871 buf.printf("%zu%s", strlen(p), p); |
336 | 3872 } |
3873 } | |
3874 else if (va) | |
3875 { | |
3876 assert(i + 1 == args->dim); // must be last one | |
3877 args = &va->objects; | |
3878 i = -1; | |
3879 } | |
3880 else | |
3881 assert(0); | |
3882 } | |
3883 buf.writeByte('Z'); | |
3884 id = buf.toChars(); | |
3885 buf.data = NULL; | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3886 //printf("\tgenIdent = %s\n", id); |
336 | 3887 return new Identifier(id, TOKidentifier); |
3888 } | |
3889 | |
3890 | |
3891 /**************************************************** | |
3892 * Declare parameters of template instance, initialize them with the | |
3893 * template instance arguments. | |
3894 */ | |
3895 | |
3896 void TemplateInstance::declareParameters(Scope *scope) | |
3897 { | |
3898 //printf("TemplateInstance::declareParameters()\n"); | |
3899 for (int i = 0; i < tdtypes.dim; i++) | |
3900 { | |
3901 TemplateParameter *tp = (TemplateParameter *)tempdecl->parameters->data[i]; | |
3902 //Object *o = (Object *)tiargs->data[i]; | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3903 Object *o = (Object *)tdtypes.data[i]; // initializer for tp |
336 | 3904 |
3905 //printf("\ttdtypes[%d] = %p\n", i, o); | |
3906 tempdecl->declareParameter(scope, tp, o); | |
3907 } | |
3908 } | |
3909 | |
3910 | |
3911 void TemplateInstance::semantic2(Scope *sc) | |
3912 { int i; | |
3913 | |
3914 if (semanticdone >= 2) | |
3915 return; | |
3916 semanticdone = 2; | |
3917 #if LOG | |
3918 printf("+TemplateInstance::semantic2('%s')\n", toChars()); | |
3919 #endif | |
3920 if (!errors && members) | |
3921 { | |
3922 sc = tempdecl->scope; | |
3923 assert(sc); | |
3924 sc = sc->push(argsym); | |
3925 sc = sc->push(this); | |
561
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
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527
diff
changeset
|
3926 sc->tinst = this; |
336 | 3927 for (i = 0; i < members->dim; i++) |
3928 { | |
3929 Dsymbol *s = (Dsymbol *)members->data[i]; | |
3930 #if LOG | |
3931 printf("\tmember '%s', kind = '%s'\n", s->toChars(), s->kind()); | |
3932 #endif | |
3933 s->semantic2(sc); | |
3934 } | |
3935 sc = sc->pop(); | |
3936 sc->pop(); | |
3937 } | |
3938 #if LOG | |
3939 printf("-TemplateInstance::semantic2('%s')\n", toChars()); | |
3940 #endif | |
3941 } | |
3942 | |
3943 void TemplateInstance::semantic3(Scope *sc) | |
3944 { | |
3945 #if LOG | |
3946 printf("TemplateInstance::semantic3('%s'), semanticdone = %d\n", toChars(), semanticdone); | |
3947 #endif | |
3948 //if (toChars()[0] == 'D') *(char*)0=0; | |
3949 if (semanticdone >= 3) | |
3950 return; | |
3951 semanticdone = 3; | |
3952 if (!errors && members) | |
3953 { | |
3954 sc = tempdecl->scope; | |
3955 sc = sc->push(argsym); | |
3956 sc = sc->push(this); | |
561
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
3957 sc->tinst = this; |
336 | 3958 for (int i = 0; i < members->dim; i++) |
3959 { | |
3960 Dsymbol *s = (Dsymbol *)members->data[i]; | |
3961 s->semantic3(sc); | |
3962 } | |
3963 sc = sc->pop(); | |
3964 sc->pop(); | |
3965 } | |
3966 } | |
3967 | |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
3968 #if IN_DMD |
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
3969 |
336 | 3970 void TemplateInstance::toObjFile(int multiobj) |
3971 { | |
3972 #if LOG | |
3973 printf("TemplateInstance::toObjFile('%s', this = %p)\n", toChars(), this); | |
3974 #endif | |
3975 if (!errors && members) | |
3976 { | |
3977 if (multiobj) | |
3978 // Append to list of object files to be written later | |
3979 //obj_append(this); | |
3980 assert(0 && "multiobj"); | |
3981 else | |
3982 { | |
3983 for (int i = 0; i < members->dim; i++) | |
3984 { | |
3985 Dsymbol *s = (Dsymbol *)members->data[i]; | |
3986 s->toObjFile(multiobj); | |
3987 } | |
3988 } | |
3989 } | |
3990 } | |
3991 | |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
3992 #endif |
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
3993 |
336 | 3994 void TemplateInstance::inlineScan() |
3995 { | |
3996 #if LOG | |
3997 printf("TemplateInstance::inlineScan('%s')\n", toChars()); | |
3998 #endif | |
3999 if (!errors && members) | |
4000 { | |
4001 for (int i = 0; i < members->dim; i++) | |
4002 { | |
4003 Dsymbol *s = (Dsymbol *)members->data[i]; | |
4004 s->inlineScan(); | |
4005 } | |
4006 } | |
4007 } | |
4008 | |
4009 void TemplateInstance::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
4010 { | |
4011 int i; | |
4012 | |
4013 Identifier *id = name; | |
4014 buf->writestring(id->toChars()); | |
4015 buf->writestring("!("); | |
4016 if (nest) | |
4017 buf->writestring("..."); | |
4018 else | |
4019 { | |
4020 nest++; | |
4021 Objects *args = tiargs; | |
4022 for (i = 0; i < args->dim; i++) | |
4023 { | |
4024 if (i) | |
4025 buf->writeByte(','); | |
4026 Object *oarg = (Object *)args->data[i]; | |
4027 ObjectToCBuffer(buf, hgs, oarg); | |
4028 } | |
4029 nest--; | |
4030 } | |
4031 buf->writeByte(')'); | |
4032 } | |
4033 | |
4034 | |
4035 Dsymbol *TemplateInstance::toAlias() | |
4036 { | |
4037 #if LOG | |
4038 printf("TemplateInstance::toAlias()\n"); | |
4039 #endif | |
4040 if (!inst) | |
4041 { error("cannot resolve forward reference"); | |
4042 return this; | |
4043 } | |
4044 | |
4045 if (inst != this) | |
4046 return inst->toAlias(); | |
4047 | |
4048 if (aliasdecl) | |
4049 return aliasdecl->toAlias(); | |
4050 | |
4051 return inst; | |
4052 } | |
4053 | |
4054 AliasDeclaration *TemplateInstance::isAliasDeclaration() | |
4055 { | |
4056 return aliasdecl; | |
4057 } | |
4058 | |
4059 const char *TemplateInstance::kind() | |
4060 { | |
4061 return "template instance"; | |
4062 } | |
4063 | |
4064 int TemplateInstance::oneMember(Dsymbol **ps) | |
4065 { | |
4066 *ps = NULL; | |
4067 return TRUE; | |
4068 } | |
4069 | |
4070 char *TemplateInstance::toChars() | |
4071 { | |
4072 OutBuffer buf; | |
4073 HdrGenState hgs; | |
4074 char *s; | |
4075 | |
4076 toCBuffer(&buf, &hgs); | |
4077 s = buf.toChars(); | |
4078 buf.data = NULL; | |
4079 return s; | |
4080 } | |
4081 | |
561
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4082 void TemplateInstance::printInstantiationTrace() |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4083 { |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4084 if(global.gag) |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4085 return; |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4086 |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4087 const int max_shown = 6; |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4088 |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4089 // determine instantiation depth |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4090 int n_instantiations = 1; |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4091 TemplateInstance* cur = this; |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4092 while(cur = cur->tinst) |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4093 ++n_instantiations; |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4094 |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4095 // show full trace only if it's short or verbose is on |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4096 if(n_instantiations <= max_shown || global.params.verbose) |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4097 { |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4098 cur = this; |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4099 while(cur) |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4100 { |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4101 fprintf(stdmsg," instantiatied in %s: %s\n", cur->loc.toChars(), cur->toChars()); |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4102 cur = cur->tinst; |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4103 } |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4104 } |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4105 else |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4106 { |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4107 cur = this; |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4108 size_t i = 0; |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4109 for(; i < max_shown/2; ++i, cur = cur->tinst) |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4110 fprintf(stdmsg," instantiatied in %s: %s\n", cur->loc.toChars(), cur->toChars()); |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4111 fprintf(stdmsg," ... (%d instantiations, -v to show) ...\n", n_instantiations - max_shown); |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4112 for(; i < n_instantiations - max_shown + max_shown/2; ++i, cur = cur->tinst) |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4113 {} |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4114 for(; i < n_instantiations; ++i, cur = cur->tinst) |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4115 fprintf(stdmsg," instantiatied in %s: %s\n", cur->loc.toChars(), cur->toChars()); |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4116 } |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4117 } |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
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527
diff
changeset
|
4118 |
336 | 4119 /* ======================== TemplateMixin ================================ */ |
4120 | |
4121 TemplateMixin::TemplateMixin(Loc loc, Identifier *ident, Type *tqual, | |
4122 Array *idents, Objects *tiargs) | |
4123 : TemplateInstance(loc, (Identifier *)idents->data[idents->dim - 1]) | |
4124 { | |
4125 //printf("TemplateMixin(ident = '%s')\n", ident ? ident->toChars() : ""); | |
4126 this->ident = ident; | |
4127 this->tqual = tqual; | |
4128 this->idents = idents; | |
4129 this->tiargs = tiargs ? tiargs : new Objects(); | |
4130 this->scope = NULL; | |
4131 } | |
4132 | |
4133 Dsymbol *TemplateMixin::syntaxCopy(Dsymbol *s) | |
4134 { TemplateMixin *tm; | |
4135 | |
4136 Array *ids = new Array(); | |
4137 ids->setDim(idents->dim); | |
4138 for (int i = 0; i < idents->dim; i++) | |
4139 { // Matches TypeQualified::syntaxCopyHelper() | |
4140 Identifier *id = (Identifier *)idents->data[i]; | |
4141 if (id->dyncast() == DYNCAST_DSYMBOL) | |
4142 { | |
4143 TemplateInstance *ti = (TemplateInstance *)id; | |
4144 | |
4145 ti = (TemplateInstance *)ti->syntaxCopy(NULL); | |
4146 id = (Identifier *)ti; | |
4147 } | |
4148 ids->data[i] = id; | |
4149 } | |
4150 | |
4151 tm = new TemplateMixin(loc, ident, | |
4152 (Type *)(tqual ? tqual->syntaxCopy() : NULL), | |
4153 ids, tiargs); | |
4154 TemplateInstance::syntaxCopy(tm); | |
4155 return tm; | |
4156 } | |
4157 | |
4158 void TemplateMixin::semantic(Scope *sc) | |
4159 { | |
4160 #if LOG | |
4161 printf("+TemplateMixin::semantic('%s', this=%p)\n", toChars(), this); | |
4162 fflush(stdout); | |
4163 #endif | |
4164 if (semanticdone && | |
4165 // This for when a class/struct contains mixin members, and | |
4166 // is done over because of forward references | |
4167 (!parent || !toParent()->isAggregateDeclaration())) | |
4168 { | |
4169 #if LOG | |
4170 printf("\tsemantic done\n"); | |
4171 #endif | |
4172 return; | |
4173 } | |
4174 if (!semanticdone) | |
4175 semanticdone = 1; | |
4176 #if LOG | |
4177 printf("\tdo semantic\n"); | |
4178 #endif | |
4179 | |
4180 #if !IN_LLVM | |
4181 // dont know what this is | |
4182 util_progress(); | |
4183 #endif | |
4184 | |
4185 Scope *scx = NULL; | |
4186 if (scope) | |
4187 { sc = scope; | |
4188 scx = scope; // save so we don't make redundant copies | |
4189 scope = NULL; | |
4190 } | |
4191 | |
4192 // Follow qualifications to find the TemplateDeclaration | |
4193 if (!tempdecl) | |
4194 { Dsymbol *s; | |
4195 int i; | |
4196 Identifier *id; | |
4197 | |
4198 if (tqual) | |
4199 { s = tqual->toDsymbol(sc); | |
4200 i = 0; | |
4201 } | |
4202 else | |
4203 { | |
4204 i = 1; | |
4205 id = (Identifier *)idents->data[0]; | |
4206 switch (id->dyncast()) | |
4207 { | |
4208 case DYNCAST_IDENTIFIER: | |
4209 s = sc->search(loc, id, NULL); | |
4210 break; | |
4211 | |
4212 case DYNCAST_DSYMBOL: | |
4213 { | |
4214 TemplateInstance *ti = (TemplateInstance *)id; | |
4215 ti->semantic(sc); | |
4216 s = ti; | |
4217 break; | |
4218 } | |
4219 default: | |
4220 assert(0); | |
4221 } | |
4222 } | |
4223 | |
4224 for (; i < idents->dim; i++) | |
4225 { | |
4226 if (!s) | |
4227 break; | |
4228 id = (Identifier *)idents->data[i]; | |
4229 s = s->searchX(loc, sc, id); | |
4230 } | |
4231 if (!s) | |
4232 { | |
4233 error("is not defined"); | |
4234 inst = this; | |
4235 return; | |
4236 } | |
4237 tempdecl = s->toAlias()->isTemplateDeclaration(); | |
4238 if (!tempdecl) | |
4239 { | |
4240 error("%s isn't a template", s->toChars()); | |
4241 inst = this; | |
4242 return; | |
4243 } | |
4244 } | |
4245 | |
4246 // Look for forward reference | |
4247 assert(tempdecl); | |
4248 for (TemplateDeclaration *td = tempdecl; td; td = td->overnext) | |
4249 { | |
4250 if (!td->scope) | |
4251 { | |
4252 /* Cannot handle forward references if mixin is a struct member, | |
4253 * because addField must happen during struct's semantic, not | |
4254 * during the mixin semantic. | |
4255 * runDeferred will re-run mixin's semantic outside of the struct's | |
4256 * semantic. | |
4257 */ | |
4258 semanticdone = 0; | |
4259 AggregateDeclaration *ad = toParent()->isAggregateDeclaration(); | |
4260 if (ad) | |
4261 ad->sizeok = 2; | |
4262 else | |
4263 { | |
4264 // Forward reference | |
4265 //printf("forward reference - deferring\n"); | |
4266 scope = scx ? scx : new Scope(*sc); | |
4267 scope->setNoFree(); | |
4268 scope->module->addDeferredSemantic(this); | |
4269 } | |
4270 return; | |
4271 } | |
4272 } | |
4273 | |
4274 // Run semantic on each argument, place results in tiargs[] | |
4275 semanticTiargs(sc); | |
4276 | |
4277 tempdecl = findBestMatch(sc); | |
4278 if (!tempdecl) | |
4279 { inst = this; | |
4280 return; // error recovery | |
4281 } | |
4282 | |
4283 if (!ident) | |
4284 ident = genIdent(); | |
4285 | |
4286 inst = this; | |
4287 parent = sc->parent; | |
4288 | |
4289 /* Detect recursive mixin instantiations. | |
4290 */ | |
4291 for (Dsymbol *s = parent; s; s = s->parent) | |
4292 { | |
4293 //printf("\ts = '%s'\n", s->toChars()); | |
4294 TemplateMixin *tm = s->isTemplateMixin(); | |
4295 if (!tm || tempdecl != tm->tempdecl) | |
4296 continue; | |
4297 | |
4298 /* Different argument list lengths happen with variadic args | |
4299 */ | |
4300 if (tiargs->dim != tm->tiargs->dim) | |
4301 continue; | |
4302 | |
4303 for (int i = 0; i < tiargs->dim; i++) | |
4304 { Object *o = (Object *)tiargs->data[i]; | |
4305 Type *ta = isType(o); | |
4306 Expression *ea = isExpression(o); | |
4307 Dsymbol *sa = isDsymbol(o); | |
4308 Object *tmo = (Object *)tm->tiargs->data[i]; | |
4309 if (ta) | |
4310 { | |
4311 Type *tmta = isType(tmo); | |
4312 if (!tmta) | |
4313 goto Lcontinue; | |
4314 if (!ta->equals(tmta)) | |
4315 goto Lcontinue; | |
4316 } | |
4317 else if (ea) | |
4318 { Expression *tme = isExpression(tmo); | |
4319 if (!tme || !ea->equals(tme)) | |
4320 goto Lcontinue; | |
4321 } | |
4322 else if (sa) | |
4323 { | |
4324 Dsymbol *tmsa = isDsymbol(tmo); | |
4325 if (sa != tmsa) | |
4326 goto Lcontinue; | |
4327 } | |
4328 else | |
4329 assert(0); | |
4330 } | |
4331 error("recursive mixin instantiation"); | |
4332 return; | |
4333 | |
4334 Lcontinue: | |
4335 continue; | |
4336 } | |
4337 | |
4338 // Copy the syntax trees from the TemplateDeclaration | |
4339 members = Dsymbol::arraySyntaxCopy(tempdecl->members); | |
4340 if (!members) | |
4341 return; | |
4342 | |
4343 symtab = new DsymbolTable(); | |
4344 | |
4345 for (Scope *sce = sc; 1; sce = sce->enclosing) | |
4346 { | |
4347 ScopeDsymbol *sds = (ScopeDsymbol *)sce->scopesym; | |
4348 if (sds) | |
4349 { | |
4350 sds->importScope(this, PROTpublic); | |
4351 break; | |
4352 } | |
4353 } | |
4354 | |
4355 #if LOG | |
4356 printf("\tcreate scope for template parameters '%s'\n", toChars()); | |
4357 #endif | |
4358 Scope *scy = sc; | |
4359 scy = sc->push(this); | |
4360 scy->parent = this; | |
4361 | |
4362 argsym = new ScopeDsymbol(); | |
4363 argsym->parent = scy->parent; | |
4364 Scope *scope = scy->push(argsym); | |
4365 | |
4366 unsigned errorsave = global.errors; | |
4367 | |
4368 // Declare each template parameter as an alias for the argument type | |
4369 declareParameters(scope); | |
4370 | |
4371 // Add members to enclosing scope, as well as this scope | |
4372 for (unsigned i = 0; i < members->dim; i++) | |
4373 { Dsymbol *s; | |
4374 | |
4375 s = (Dsymbol *)members->data[i]; | |
4376 s->addMember(scope, this, i); | |
4377 //sc->insert(s); | |
4378 //printf("sc->parent = %p, sc->scopesym = %p\n", sc->parent, sc->scopesym); | |
4379 //printf("s->parent = %s\n", s->parent->toChars()); | |
4380 } | |
4381 | |
4382 // Do semantic() analysis on template instance members | |
4383 #if LOG | |
4384 printf("\tdo semantic() on template instance members '%s'\n", toChars()); | |
4385 #endif | |
4386 Scope *sc2; | |
4387 sc2 = scope->push(this); | |
4388 sc2->offset = sc->offset; | |
4389 for (int i = 0; i < members->dim; i++) | |
4390 { | |
4391 Dsymbol *s = (Dsymbol *)members->data[i]; | |
4392 s->semantic(sc2); | |
4393 } | |
4394 sc->offset = sc2->offset; | |
4395 | |
4396 /* The problem is when to parse the initializer for a variable. | |
4397 * Perhaps VarDeclaration::semantic() should do it like it does | |
4398 * for initializers inside a function. | |
4399 */ | |
4400 // if (sc->parent->isFuncDeclaration()) | |
4401 | |
4402 semantic2(sc2); | |
4403 | |
4404 if (sc->func) | |
4405 { | |
4406 semantic3(sc2); | |
4407 } | |
4408 | |
4409 // Give additional context info if error occurred during instantiation | |
4410 if (global.errors != errorsave) | |
4411 { | |
4412 error("error instantiating"); | |
4413 } | |
4414 | |
4415 sc2->pop(); | |
4416 | |
4417 scope->pop(); | |
4418 | |
4419 // if (!isAnonymous()) | |
4420 { | |
4421 scy->pop(); | |
4422 } | |
4423 #if LOG | |
4424 printf("-TemplateMixin::semantic('%s', this=%p)\n", toChars(), this); | |
4425 #endif | |
4426 } | |
4427 | |
4428 void TemplateMixin::semantic2(Scope *sc) | |
4429 { int i; | |
4430 | |
4431 if (semanticdone >= 2) | |
4432 return; | |
4433 semanticdone = 2; | |
4434 #if LOG | |
4435 printf("+TemplateMixin::semantic2('%s')\n", toChars()); | |
4436 #endif | |
4437 if (members) | |
4438 { | |
4439 assert(sc); | |
4440 sc = sc->push(argsym); | |
4441 sc = sc->push(this); | |
4442 for (i = 0; i < members->dim; i++) | |
4443 { | |
4444 Dsymbol *s = (Dsymbol *)members->data[i]; | |
4445 #if LOG | |
4446 printf("\tmember '%s', kind = '%s'\n", s->toChars(), s->kind()); | |
4447 #endif | |
4448 s->semantic2(sc); | |
4449 } | |
4450 sc = sc->pop(); | |
4451 sc->pop(); | |
4452 } | |
4453 #if LOG | |
4454 printf("-TemplateMixin::semantic2('%s')\n", toChars()); | |
4455 #endif | |
4456 } | |
4457 | |
4458 void TemplateMixin::semantic3(Scope *sc) | |
4459 { int i; | |
4460 | |
4461 if (semanticdone >= 3) | |
4462 return; | |
4463 semanticdone = 3; | |
4464 #if LOG | |
4465 printf("TemplateMixin::semantic3('%s')\n", toChars()); | |
4466 #endif | |
4467 if (members) | |
4468 { | |
4469 sc = sc->push(argsym); | |
4470 sc = sc->push(this); | |
4471 for (i = 0; i < members->dim; i++) | |
4472 { | |
4473 Dsymbol *s = (Dsymbol *)members->data[i]; | |
4474 s->semantic3(sc); | |
4475 } | |
4476 sc = sc->pop(); | |
4477 sc->pop(); | |
4478 } | |
4479 } | |
4480 | |
4481 void TemplateMixin::inlineScan() | |
4482 { | |
4483 TemplateInstance::inlineScan(); | |
4484 } | |
4485 | |
4486 const char *TemplateMixin::kind() | |
4487 { | |
4488 return "mixin"; | |
4489 } | |
4490 | |
4491 int TemplateMixin::oneMember(Dsymbol **ps) | |
4492 { | |
4493 return Dsymbol::oneMember(ps); | |
4494 } | |
4495 | |
4496 int TemplateMixin::hasPointers() | |
4497 { | |
4498 //printf("TemplateMixin::hasPointers() %s\n", toChars()); | |
4499 for (size_t i = 0; i < members->dim; i++) | |
4500 { | |
4501 Dsymbol *s = (Dsymbol *)members->data[i]; | |
4502 //printf(" s = %s %s\n", s->kind(), s->toChars()); | |
4503 if (s->hasPointers()) | |
4504 { | |
4505 return 1; | |
4506 } | |
4507 } | |
4508 return 0; | |
4509 } | |
4510 | |
4511 char *TemplateMixin::toChars() | |
4512 { | |
4513 OutBuffer buf; | |
4514 HdrGenState hgs; | |
4515 char *s; | |
4516 | |
4517 TemplateInstance::toCBuffer(&buf, &hgs); | |
4518 s = buf.toChars(); | |
4519 buf.data = NULL; | |
4520 return s; | |
4521 } | |
4522 | |
4523 void TemplateMixin::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
4524 { | |
4525 buf->writestring("mixin "); | |
4526 | |
4527 for (int i = 0; i < idents->dim; i++) | |
4528 { Identifier *id = (Identifier *)idents->data[i]; | |
4529 | |
4530 if (i) | |
4531 buf->writeByte('.'); | |
4532 buf->writestring(id->toChars()); | |
4533 } | |
4534 buf->writestring("!("); | |
4535 if (tiargs) | |
4536 { | |
4537 for (int i = 0; i < tiargs->dim; i++) | |
4538 { if (i) | |
4539 buf->writebyte(','); | |
4540 Object *oarg = (Object *)tiargs->data[i]; | |
4541 Type *t = isType(oarg); | |
4542 Expression *e = isExpression(oarg); | |
4543 Dsymbol *s = isDsymbol(oarg); | |
4544 if (t) | |
4545 t->toCBuffer(buf, NULL, hgs); | |
4546 else if (e) | |
4547 e->toCBuffer(buf, hgs); | |
4548 else if (s) | |
4549 { | |
4550 char *p = s->ident ? s->ident->toChars() : s->toChars(); | |
4551 buf->writestring(p); | |
4552 } | |
4553 else if (!oarg) | |
4554 { | |
4555 buf->writestring("NULL"); | |
4556 } | |
4557 else | |
4558 { | |
4559 assert(0); | |
4560 } | |
4561 } | |
4562 } | |
4563 buf->writebyte(')'); | |
4564 if (ident) | |
4565 { | |
4566 buf->writebyte(' '); | |
4567 buf->writestring(ident->toChars()); | |
4568 } | |
4569 buf->writebyte(';'); | |
4570 buf->writenl(); | |
4571 } | |
4572 | |
4573 | |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
4574 #if IN_DMD |
336 | 4575 void TemplateMixin::toObjFile(int multiobj) |
4576 { | |
4577 //printf("TemplateMixin::toObjFile('%s')\n", toChars()); | |
4578 TemplateInstance::toObjFile(multiobj); | |
4579 } | |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
4580 #endif |