Mercurial > projects > ldc
annotate dmd/template.c @ 1259:dda95755f63d
Fix parsing of import statements to only pass valid identifiers to Import
constructor. Fixes #264.
author | Christian Kamm <kamm incasoftware de> |
---|---|
date | Thu, 23 Apr 2009 20:44:55 +0200 |
parents | e961851fb8be |
children | 8026319762be |
rev | line source |
---|---|
336 | 1 |
2 // Compiler implementation of the D programming language | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
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 #endif | |
18 #include "root.h" | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
19 #include "rmem.h" |
336 | 20 #include "stringtable.h" |
21 #include "mars.h" | |
22 #include "identifier.h" | |
23 #include "mtype.h" | |
24 #include "template.h" | |
25 #include "init.h" | |
26 #include "expression.h" | |
27 #include "scope.h" | |
28 #include "module.h" | |
29 #include "aggregate.h" | |
30 #include "declaration.h" | |
31 #include "dsymbol.h" | |
32 #include "hdrgen.h" | |
33 | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
34 #if WINDOWS_SEH |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
35 #include <windows.h> |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
36 long __cdecl __ehfilter(LPEXCEPTION_POINTERS ep); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
37 #endif |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
38 |
336 | 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 | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
162 //printf("t1 = %s\n", t1->toChars()); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
163 //printf("t2 = %s\n", t2->toChars()); |
336 | 164 if (!t2 || !t1->equals(t2)) |
165 goto Lnomatch; | |
166 } | |
167 else if (e1) | |
168 { | |
169 #if 0 | |
170 if (e1 && e2) | |
171 { | |
172 printf("match %d\n", e1->equals(e2)); | |
173 e1->print(); | |
174 e2->print(); | |
175 e1->type->print(); | |
176 e2->type->print(); | |
177 } | |
178 #endif | |
179 if (!e2) | |
180 goto Lnomatch; | |
181 if (!e1->equals(e2)) | |
182 goto Lnomatch; | |
183 } | |
184 else if (s1) | |
185 { | |
186 //printf("%p %s, %p %s\n", s1, s1->toChars(), s2, s2->toChars()); | |
187 if (!s2 || !s1->equals(s2) || s1->parent != s2->parent) | |
188 { | |
189 goto Lnomatch; | |
190 } | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
191 #if DMDV2 |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
192 VarDeclaration *v1 = s1->isVarDeclaration(); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
193 VarDeclaration *v2 = s2->isVarDeclaration(); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
194 if (v1 && v2 && v1->storage_class & v2->storage_class & STCmanifest) |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
195 { ExpInitializer *ei1 = v1->init->isExpInitializer(); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
196 ExpInitializer *ei2 = v2->init->isExpInitializer(); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
197 if (ei1 && ei2 && !ei1->exp->equals(ei2->exp)) |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
198 goto Lnomatch; |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
199 } |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
200 #endif |
336 | 201 } |
202 else if (v1) | |
203 { | |
204 if (!v2) | |
205 goto Lnomatch; | |
206 if (v1->objects.dim != v2->objects.dim) | |
207 goto Lnomatch; | |
208 for (size_t i = 0; i < v1->objects.dim; i++) | |
209 { | |
210 if (!match((Object *)v1->objects.data[i], | |
211 (Object *)v2->objects.data[i], | |
212 tempdecl, sc)) | |
213 goto Lnomatch; | |
214 } | |
215 } | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
216 //printf("match\n"); |
336 | 217 return 1; // match |
218 Lnomatch: | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
219 //printf("nomatch\n"); |
336 | 220 return 0; // nomatch; |
221 } | |
222 | |
223 /**************************************** | |
224 */ | |
225 | |
226 void ObjectToCBuffer(OutBuffer *buf, HdrGenState *hgs, Object *oarg) | |
227 { | |
228 //printf("ObjectToCBuffer()\n"); | |
229 Type *t = isType(oarg); | |
230 Expression *e = isExpression(oarg); | |
231 Dsymbol *s = isDsymbol(oarg); | |
232 Tuple *v = isTuple(oarg); | |
233 if (t) | |
234 { //printf("\tt: %s ty = %d\n", t->toChars(), t->ty); | |
235 t->toCBuffer(buf, NULL, hgs); | |
236 } | |
237 else if (e) | |
238 e->toCBuffer(buf, hgs); | |
239 else if (s) | |
240 { | |
241 char *p = s->ident ? s->ident->toChars() : s->toChars(); | |
242 buf->writestring(p); | |
243 } | |
244 else if (v) | |
245 { | |
246 Objects *args = &v->objects; | |
247 for (size_t i = 0; i < args->dim; i++) | |
248 { | |
249 if (i) | |
250 buf->writeByte(','); | |
251 Object *o = (Object *)args->data[i]; | |
252 ObjectToCBuffer(buf, hgs, o); | |
253 } | |
254 } | |
255 else if (!oarg) | |
256 { | |
257 buf->writestring("NULL"); | |
258 } | |
259 else | |
260 { | |
261 #ifdef DEBUG | |
262 printf("bad Object = %p\n", oarg); | |
263 #endif | |
264 assert(0); | |
265 } | |
266 } | |
267 | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
268 #if DMDV2 |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
269 Object *objectSyntaxCopy(Object *o) |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
270 { |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
271 if (!o) |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
272 return NULL; |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
273 Type *t = isType(o); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
274 if (t) |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
275 return t->syntaxCopy(); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
276 Expression *e = isExpression(o); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
277 if (e) |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
278 return e->syntaxCopy(); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
279 return o; |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
280 } |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
281 #endif |
336 | 282 |
283 | |
284 /* ======================== TemplateDeclaration ============================= */ | |
285 | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
286 TemplateDeclaration::TemplateDeclaration(Loc loc, Identifier *id, |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
287 TemplateParameters *parameters, Expression *constraint, Array *decldefs) |
336 | 288 : ScopeDsymbol(id) |
289 { | |
290 #if LOG | |
291 printf("TemplateDeclaration(this = %p, id = '%s')\n", this, id->toChars()); | |
292 #endif | |
293 #if 0 | |
294 if (parameters) | |
295 for (int i = 0; i < parameters->dim; i++) | |
296 { TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
297 //printf("\tparameter[%d] = %p\n", i, tp); | |
298 TemplateTypeParameter *ttp = tp->isTemplateTypeParameter(); | |
299 | |
300 if (ttp) | |
301 { | |
302 printf("\tparameter[%d] = %s : %s\n", i, tp->ident->toChars(), ttp->specType ? ttp->specType->toChars() : ""); | |
303 } | |
304 } | |
305 #endif | |
306 this->loc = loc; | |
307 this->parameters = parameters; | |
308 this->origParameters = parameters; | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
309 this->constraint = constraint; |
336 | 310 this->members = decldefs; |
311 this->overnext = NULL; | |
312 this->overroot = NULL; | |
313 this->scope = NULL; | |
314 this->onemember = NULL; | |
315 } | |
316 | |
317 Dsymbol *TemplateDeclaration::syntaxCopy(Dsymbol *) | |
318 { | |
319 //printf("TemplateDeclaration::syntaxCopy()\n"); | |
320 TemplateDeclaration *td; | |
321 TemplateParameters *p; | |
322 Array *d; | |
323 | |
324 p = NULL; | |
325 if (parameters) | |
326 { | |
327 p = new TemplateParameters(); | |
328 p->setDim(parameters->dim); | |
329 for (int i = 0; i < p->dim; i++) | |
330 { TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
331 p->data[i] = (void *)tp->syntaxCopy(); | |
332 } | |
333 } | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
334 Expression *e = NULL; |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
335 if (constraint) |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
336 e = constraint->syntaxCopy(); |
336 | 337 d = Dsymbol::arraySyntaxCopy(members); |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
338 td = new TemplateDeclaration(loc, ident, p, e, d); |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
339 |
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
340 #if IN_LLVM |
664
eef8ac26c66c
Some missed LLVMDC -> LDC.
Christian Kamm <kamm incasoftware de>
parents:
561
diff
changeset
|
341 // LDC |
527
cecfee2d01a8
Added support for overloaded intrinsics.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
342 td->intrinsicName = intrinsicName; |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
343 #endif |
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
344 |
336 | 345 return td; |
346 } | |
347 | |
348 void TemplateDeclaration::semantic(Scope *sc) | |
349 { | |
350 #if LOG | |
351 printf("TemplateDeclaration::semantic(this = %p, id = '%s')\n", this, ident->toChars()); | |
352 #endif | |
353 if (scope) | |
354 return; // semantic() already run | |
355 | |
356 if (sc->func) | |
357 { | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
358 #if DMDV1 |
336 | 359 error("cannot declare template at function scope %s", sc->func->toChars()); |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
360 #endif |
336 | 361 } |
362 | |
363 if (/*global.params.useArrayBounds &&*/ sc->module) | |
364 { | |
365 // Generate this function as it may be used | |
366 // when template is instantiated in other modules | |
1146
1860414bf3b7
* Moved ir/irsymbol.cpp/h into ir/irdsymbol.cpp/h.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1103
diff
changeset
|
367 |
1860414bf3b7
* Moved ir/irsymbol.cpp/h into ir/irdsymbol.cpp/h.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1103
diff
changeset
|
368 // FIXME: LDC |
1860414bf3b7
* Moved ir/irsymbol.cpp/h into ir/irdsymbol.cpp/h.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1103
diff
changeset
|
369 //sc->module->toModuleArray(); |
336 | 370 } |
371 | |
372 if (/*global.params.useAssert &&*/ sc->module) | |
373 { | |
374 // Generate this function as it may be used | |
375 // when template is instantiated in other modules | |
1146
1860414bf3b7
* Moved ir/irsymbol.cpp/h into ir/irdsymbol.cpp/h.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1103
diff
changeset
|
376 |
1860414bf3b7
* Moved ir/irsymbol.cpp/h into ir/irdsymbol.cpp/h.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1103
diff
changeset
|
377 // FIXME: LDC |
1860414bf3b7
* Moved ir/irsymbol.cpp/h into ir/irdsymbol.cpp/h.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1103
diff
changeset
|
378 //sc->module->toModuleAssert(); |
336 | 379 } |
380 | |
381 /* Remember Scope for later instantiations, but make | |
382 * a copy since attributes can change. | |
383 */ | |
384 this->scope = new Scope(*sc); | |
385 this->scope->setNoFree(); | |
386 | |
387 // Set up scope for parameters | |
388 ScopeDsymbol *paramsym = new ScopeDsymbol(); | |
389 paramsym->parent = sc->parent; | |
390 Scope *paramscope = sc->push(paramsym); | |
391 paramscope->parameterSpecialization = 1; | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
392 paramscope->stc = 0; |
336 | 393 |
394 if (global.params.doDocComments) | |
395 { | |
396 origParameters = new TemplateParameters(); | |
397 origParameters->setDim(parameters->dim); | |
398 for (int i = 0; i < parameters->dim; i++) | |
399 { | |
400 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
401 origParameters->data[i] = (void *)tp->syntaxCopy(); | |
402 } | |
403 } | |
404 | |
405 for (int i = 0; i < parameters->dim; i++) | |
406 { | |
407 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
408 | |
409 tp->declareParameter(paramscope); | |
410 } | |
411 | |
412 for (int i = 0; i < parameters->dim; i++) | |
413 { | |
414 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
415 | |
416 tp->semantic(paramscope); | |
417 if (i + 1 != parameters->dim && tp->isTemplateTupleParameter()) | |
418 error("template tuple parameter must be last one"); | |
419 } | |
420 | |
421 paramscope->pop(); | |
422 | |
423 if (members) | |
424 { | |
425 Dsymbol *s; | |
426 if (Dsymbol::oneMembers(members, &s)) | |
427 { | |
428 if (s && s->ident && s->ident->equals(ident)) | |
429 { | |
430 onemember = s; | |
431 s->parent = this; | |
432 } | |
433 } | |
434 } | |
435 | |
436 /* BUG: should check: | |
437 * o no virtual functions or non-static data members of classes | |
438 */ | |
439 } | |
440 | |
441 const char *TemplateDeclaration::kind() | |
442 { | |
443 return (onemember && onemember->isAggregateDeclaration()) | |
444 ? onemember->kind() | |
445 : (char *)"template"; | |
446 } | |
447 | |
448 /********************************** | |
449 * Overload existing TemplateDeclaration 'this' with the new one 's'. | |
450 * Return !=0 if successful; i.e. no conflict. | |
451 */ | |
452 | |
453 int TemplateDeclaration::overloadInsert(Dsymbol *s) | |
454 { | |
455 TemplateDeclaration **pf; | |
456 TemplateDeclaration *f; | |
457 | |
458 #if LOG | |
459 printf("TemplateDeclaration::overloadInsert('%s')\n", s->toChars()); | |
460 #endif | |
461 f = s->isTemplateDeclaration(); | |
462 if (!f) | |
463 return FALSE; | |
464 TemplateDeclaration *pthis = this; | |
465 for (pf = &pthis; *pf; pf = &(*pf)->overnext) | |
466 { | |
467 #if 0 | |
468 // Conflict if TemplateParameter's match | |
469 // Will get caught anyway later with TemplateInstance, but | |
470 // should check it now. | |
471 TemplateDeclaration *f2 = *pf; | |
472 | |
473 if (f->parameters->dim != f2->parameters->dim) | |
474 goto Lcontinue; | |
475 | |
476 for (int i = 0; i < f->parameters->dim; i++) | |
477 { TemplateParameter *p1 = (TemplateParameter *)f->parameters->data[i]; | |
478 TemplateParameter *p2 = (TemplateParameter *)f2->parameters->data[i]; | |
479 | |
480 if (!p1->overloadMatch(p2)) | |
481 goto Lcontinue; | |
482 } | |
483 | |
484 #if LOG | |
485 printf("\tfalse: conflict\n"); | |
486 #endif | |
487 return FALSE; | |
488 | |
489 Lcontinue: | |
490 ; | |
491 #endif | |
492 } | |
493 | |
494 f->overroot = this; | |
495 *pf = f; | |
496 #if LOG | |
497 printf("\ttrue: no conflict\n"); | |
498 #endif | |
499 return TRUE; | |
500 } | |
501 | |
502 /*************************************** | |
503 * Given that ti is an instance of this TemplateDeclaration, | |
504 * deduce the types of the parameters to this, and store | |
505 * those deduced types in dedtypes[]. | |
506 * Input: | |
507 * flag 1: don't do semantic() because of dummy types | |
508 * 2: don't change types in matchArg() | |
509 * Output: | |
510 * dedtypes deduced arguments | |
511 * Return match level. | |
512 */ | |
513 | |
514 MATCH TemplateDeclaration::matchWithInstance(TemplateInstance *ti, | |
515 Objects *dedtypes, int flag) | |
516 { MATCH m; | |
517 int dedtypes_dim = dedtypes->dim; | |
518 | |
519 #define LOGM 0 | |
520 #if LOGM | |
521 printf("\n+TemplateDeclaration::matchWithInstance(this = %s, ti = %s, flag = %d)\n", toChars(), ti->toChars(), flag); | |
522 #endif | |
523 | |
524 #if 0 | |
525 printf("dedtypes->dim = %d, parameters->dim = %d\n", dedtypes_dim, parameters->dim); | |
526 if (ti->tiargs->dim) | |
527 printf("ti->tiargs->dim = %d, [0] = %p\n", | |
528 ti->tiargs->dim, | |
529 ti->tiargs->data[0]); | |
530 #endif | |
531 dedtypes->zero(); | |
532 | |
533 int parameters_dim = parameters->dim; | |
534 int variadic = isVariadic() != NULL; | |
535 | |
536 // If more arguments than parameters, no match | |
537 if (ti->tiargs->dim > parameters_dim && !variadic) | |
538 { | |
539 #if LOGM | |
540 printf(" no match: more arguments than parameters\n"); | |
541 #endif | |
542 return MATCHnomatch; | |
543 } | |
544 | |
545 assert(dedtypes_dim == parameters_dim); | |
546 assert(dedtypes_dim >= ti->tiargs->dim || variadic); | |
547 | |
548 // Set up scope for parameters | |
549 assert((size_t)scope > 0x10000); | |
550 ScopeDsymbol *paramsym = new ScopeDsymbol(); | |
551 paramsym->parent = scope->parent; | |
552 Scope *paramscope = scope->push(paramsym); | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
553 paramscope->stc = 0; |
336 | 554 |
555 // Attempt type deduction | |
556 m = MATCHexact; | |
557 for (int i = 0; i < dedtypes_dim; i++) | |
558 { MATCH m2; | |
559 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
560 Declaration *sparam; | |
561 | |
562 //printf("\targument [%d]\n", i); | |
563 #if LOGM | |
564 //printf("\targument [%d] is %s\n", i, oarg ? oarg->toChars() : "null"); | |
565 TemplateTypeParameter *ttp = tp->isTemplateTypeParameter(); | |
566 if (ttp) | |
567 printf("\tparameter[%d] is %s : %s\n", i, tp->ident->toChars(), ttp->specType ? ttp->specType->toChars() : ""); | |
568 #endif | |
569 | |
570 #if DMDV1 | |
571 m2 = tp->matchArg(paramscope, ti->tiargs, i, parameters, dedtypes, &sparam); | |
572 #else | |
573 m2 = tp->matchArg(paramscope, ti->tiargs, i, parameters, dedtypes, &sparam, (flag & 2) ? 1 : 0); | |
574 | |
575 #endif | |
576 //printf("\tm2 = %d\n", m2); | |
577 | |
578 if (m2 == MATCHnomatch) | |
579 { | |
580 #if 0 | |
581 printf("\tmatchArg() for parameter %i failed\n", i); | |
582 #endif | |
583 goto Lnomatch; | |
584 } | |
585 | |
586 if (m2 < m) | |
587 m = m2; | |
588 | |
589 if (!flag) | |
590 sparam->semantic(paramscope); | |
591 if (!paramscope->insert(sparam)) | |
592 goto Lnomatch; | |
593 } | |
594 | |
595 if (!flag) | |
596 { | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
597 /* Any parameter left without a type gets the type of |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
598 * its corresponding arg |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
599 */ |
336 | 600 for (int i = 0; i < dedtypes_dim; i++) |
601 { | |
602 if (!dedtypes->data[i]) | |
603 { assert(i < ti->tiargs->dim); | |
604 dedtypes->data[i] = ti->tiargs->data[i]; | |
605 } | |
606 } | |
607 } | |
608 | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
609 #if DMDV2 |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
610 if (m && constraint && !(flag & 1)) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
611 { /* Check to see if constraint is satisfied. |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
612 */ |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
613 Expression *e = constraint->syntaxCopy(); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
614 paramscope->flags |= SCOPEstaticif; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
615 e = e->semantic(paramscope); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
616 e = e->optimize(WANTvalue | WANTinterpret); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
617 if (e->isBool(TRUE)) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
618 ; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
619 else if (e->isBool(FALSE)) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
620 goto Lnomatch; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
621 else |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
622 { |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
623 e->error("constraint %s is not constant or does not evaluate to a bool", e->toChars()); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
624 } |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
625 } |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
626 #endif |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
627 |
336 | 628 #if LOGM |
629 // Print out the results | |
630 printf("--------------------------\n"); | |
631 printf("template %s\n", toChars()); | |
632 printf("instance %s\n", ti->toChars()); | |
633 if (m) | |
634 { | |
635 for (int i = 0; i < dedtypes_dim; i++) | |
636 { | |
637 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
638 Object *oarg; | |
639 | |
640 printf(" [%d]", i); | |
641 | |
642 if (i < ti->tiargs->dim) | |
643 oarg = (Object *)ti->tiargs->data[i]; | |
644 else | |
645 oarg = NULL; | |
646 tp->print(oarg, (Object *)dedtypes->data[i]); | |
647 } | |
648 } | |
649 else | |
650 goto Lnomatch; | |
651 #endif | |
652 | |
653 #if LOGM | |
654 printf(" match = %d\n", m); | |
655 #endif | |
656 goto Lret; | |
657 | |
658 Lnomatch: | |
659 #if LOGM | |
660 printf(" no match\n"); | |
661 #endif | |
662 m = MATCHnomatch; | |
663 | |
664 Lret: | |
665 paramscope->pop(); | |
666 #if LOGM | |
667 printf("-TemplateDeclaration::matchWithInstance(this = %p, ti = %p) = %d\n", this, ti, m); | |
668 #endif | |
669 return m; | |
670 } | |
671 | |
672 /******************************************** | |
673 * Determine partial specialization order of 'this' vs td2. | |
674 * Returns: | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
675 * match this is at least as specialized as td2 |
336 | 676 * 0 td2 is more specialized than this |
677 */ | |
678 | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
679 MATCH TemplateDeclaration::leastAsSpecialized(TemplateDeclaration *td2) |
336 | 680 { |
681 /* This works by taking the template parameters to this template | |
682 * declaration and feeding them to td2 as if it were a template | |
683 * instance. | |
684 * If it works, then this template is at least as specialized | |
685 * as td2. | |
686 */ | |
687 | |
688 TemplateInstance ti(0, ident); // create dummy template instance | |
689 Objects dedtypes; | |
690 | |
691 #define LOG_LEASTAS 0 | |
692 | |
693 #if LOG_LEASTAS | |
694 printf("%s.leastAsSpecialized(%s)\n", toChars(), td2->toChars()); | |
695 #endif | |
696 | |
697 // Set type arguments to dummy template instance to be types | |
698 // generated from the parameters to this template declaration | |
699 ti.tiargs = new Objects(); | |
700 ti.tiargs->setDim(parameters->dim); | |
701 for (int i = 0; i < ti.tiargs->dim; i++) | |
702 { | |
703 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
704 | |
705 void *p = tp->dummyArg(); | |
706 if (p) | |
707 ti.tiargs->data[i] = p; | |
708 else | |
709 ti.tiargs->setDim(i); | |
710 } | |
711 | |
712 // Temporary Array to hold deduced types | |
713 //dedtypes.setDim(parameters->dim); | |
714 dedtypes.setDim(td2->parameters->dim); | |
715 | |
716 // Attempt a type deduction | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
717 MATCH m = td2->matchWithInstance(&ti, &dedtypes, 1); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
718 if (m) |
336 | 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 | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
727 printf(" matches %d, so is least as specialized\n", m); |
336 | 728 #endif |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
729 return m; |
336 | 730 } |
731 L1: | |
732 #if LOG_LEASTAS | |
733 printf(" doesn't match, so is not as specialized\n"); | |
734 #endif | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
735 return MATCHnomatch; |
336 | 736 } |
737 | |
738 | |
739 /************************************************* | |
740 * Match function arguments against a specific template function. | |
741 * Input: | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
742 * loc instantiation location |
336 | 743 * targsi Expression/Type initial list of template arguments |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
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
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
752 MATCH TemplateDeclaration::deduceFunctionTemplateMatch(Loc loc, Objects *targsi, |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
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 Objects dedtypes; // for T:T*, the dedargs is the T*, dedtypes is the T | |
766 | |
767 #if 0 | |
768 printf("\nTemplateDeclaration::deduceFunctionTemplateMatch() %s\n", toChars()); | |
769 for (i = 0; i < fargs->dim; i++) | |
770 { Expression *e = (Expression *)fargs->data[i]; | |
771 printf("\tfarg[%d] is %s, type is %s\n", i, e->toChars(), e->type->toChars()); | |
772 } | |
773 #endif | |
774 | |
775 assert((size_t)scope > 0x10000); | |
776 | |
777 dedargs->setDim(parameters->dim); | |
778 dedargs->zero(); | |
779 | |
780 dedtypes.setDim(parameters->dim); | |
781 dedtypes.zero(); | |
782 | |
783 // Set up scope for parameters | |
784 ScopeDsymbol *paramsym = new ScopeDsymbol(); | |
785 paramsym->parent = scope->parent; | |
786 Scope *paramscope = scope->push(paramsym); | |
787 | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
788 TemplateTupleParameter *tp = isVariadic(); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
789 |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
790 #if 0 |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
791 for (i = 0; i < dedargs->dim; i++) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
792 { |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
793 printf("\tdedarg[%d] = ", i); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
794 Object *oarg = (Object *)dedargs->data[i]; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
795 if (oarg) printf("%s", oarg->toChars()); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
796 printf("\n"); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
797 } |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
798 #endif |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
799 |
336 | 800 |
801 nargsi = 0; | |
802 if (targsi) | |
803 { // Set initial template arguments | |
804 | |
805 nargsi = targsi->dim; | |
806 if (nargsi > parameters->dim) | |
807 { if (!tp) | |
808 goto Lnomatch; | |
809 dedargs->setDim(nargsi); | |
810 dedargs->zero(); | |
811 } | |
812 | |
813 memcpy(dedargs->data, targsi->data, nargsi * sizeof(*dedargs->data)); | |
814 | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
815 for (size_t i = 0; i < nargsi; i++) |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
816 { assert(i < parameters->dim); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
817 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; |
336 | 818 MATCH m; |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
819 Declaration *sparam = NULL; |
336 | 820 |
821 m = tp->matchArg(paramscope, dedargs, i, parameters, &dedtypes, &sparam); | |
822 //printf("\tdeduceType m = %d\n", m); | |
823 if (m == MATCHnomatch) | |
824 goto Lnomatch; | |
825 if (m < match) | |
826 match = m; | |
827 | |
828 sparam->semantic(paramscope); | |
829 if (!paramscope->insert(sparam)) | |
830 goto Lnomatch; | |
831 } | |
832 } | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
833 #if 0 |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
834 for (i = 0; i < dedargs->dim; i++) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
835 { |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
836 printf("\tdedarg[%d] = ", i); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
837 Object *oarg = (Object *)dedargs->data[i]; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
838 if (oarg) printf("%s", oarg->toChars()); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
839 printf("\n"); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
840 } |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
841 #endif |
336 | 842 |
843 assert(fd->type->ty == Tfunction); | |
844 fdtype = (TypeFunction *)fd->type; | |
845 | |
846 nfparams = Argument::dim(fdtype->parameters); // number of function parameters | |
847 nfargs = fargs->dim; // number of function arguments | |
848 | |
849 /* Check for match of function arguments with variadic template | |
850 * parameter, such as: | |
851 * | |
852 * template Foo(T, A...) { void Foo(T t, A a); } | |
853 * void main() { Foo(1,2,3); } | |
854 */ | |
855 if (tp) // if variadic | |
856 { | |
857 if (nfparams == 0) // if no function parameters | |
858 { | |
859 Tuple *t = new Tuple(); | |
860 //printf("t = %p\n", t); | |
861 dedargs->data[parameters->dim - 1] = (void *)t; | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
862 declareParameter(paramscope, tp, t); |
336 | 863 goto L2; |
864 } | |
865 else if (nfargs < nfparams - 1) | |
866 goto L1; | |
867 else | |
868 { | |
869 /* Figure out which of the function parameters matches | |
870 * the tuple template parameter. Do this by matching | |
871 * type identifiers. | |
872 * Set the index of this function parameter to fptupindex. | |
873 */ | |
874 for (fptupindex = 0; fptupindex < nfparams; fptupindex++) | |
875 { | |
876 Argument *fparam = (Argument *)fdtype->parameters->data[fptupindex]; | |
877 if (fparam->type->ty != Tident) | |
878 continue; | |
879 TypeIdentifier *tid = (TypeIdentifier *)fparam->type; | |
880 if (!tp->ident->equals(tid->ident) || tid->idents.dim) | |
881 continue; | |
882 | |
883 if (fdtype->varargs) // variadic function doesn't | |
884 goto Lnomatch; // go with variadic template | |
885 | |
886 /* The types of the function arguments | |
887 * now form the tuple argument. | |
888 */ | |
889 Tuple *t = new Tuple(); | |
890 dedargs->data[parameters->dim - 1] = (void *)t; | |
891 | |
892 tuple_dim = nfargs - (nfparams - 1); | |
893 t->objects.setDim(tuple_dim); | |
894 for (i = 0; i < tuple_dim; i++) | |
895 { Expression *farg = (Expression *)fargs->data[fptupindex + i]; | |
896 t->objects.data[i] = (void *)farg->type; | |
897 } | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
898 declareParameter(paramscope, tp, t); |
336 | 899 goto L2; |
900 } | |
901 fptupindex = -1; | |
902 } | |
903 } | |
904 | |
905 L1: | |
906 if (nfparams == nfargs) | |
907 ; | |
908 else if (nfargs > nfparams) | |
909 { | |
910 if (fdtype->varargs == 0) | |
911 goto Lnomatch; // too many args, no match | |
912 match = MATCHconvert; // match ... with a conversion | |
913 } | |
914 | |
915 L2: | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
916 #if DMDV2 |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
917 // Match 'ethis' to any TemplateThisParameter's |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
918 if (ethis) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
919 { |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
920 for (size_t i = 0; i < parameters->dim; i++) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
921 { TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
922 TemplateThisParameter *ttp = tp->isTemplateThisParameter(); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
923 if (ttp) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
924 { MATCH m; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
925 |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
926 Type *t = new TypeIdentifier(0, ttp->ident); |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
927 m = ethis->type->deduceType(paramscope, t, parameters, &dedtypes); |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
928 if (!m) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
929 goto Lnomatch; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
930 if (m < match) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
931 match = m; // pick worst match |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
932 } |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
933 } |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
934 } |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
935 #endif |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
936 |
336 | 937 // Loop through the function parameters |
938 for (i = 0; i < nfparams; i++) | |
939 { | |
940 /* Skip over function parameters which wound up | |
941 * as part of a template tuple parameter. | |
942 */ | |
943 if (i == fptupindex) | |
944 { if (fptupindex == nfparams - 1) | |
945 break; | |
946 i += tuple_dim - 1; | |
947 continue; | |
948 } | |
949 | |
950 Argument *fparam = Argument::getNth(fdtype->parameters, i); | |
951 | |
952 if (i >= nfargs) // if not enough arguments | |
953 { | |
954 if (fparam->defaultArg) | |
955 { /* Default arguments do not participate in template argument | |
956 * deduction. | |
957 */ | |
958 goto Lmatch; | |
959 } | |
960 } | |
961 else | |
962 { Expression *farg = (Expression *)fargs->data[i]; | |
963 #if 0 | |
964 printf("\tfarg->type = %s\n", farg->type->toChars()); | |
965 printf("\tfparam->type = %s\n", fparam->type->toChars()); | |
966 #endif | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
967 Type *argtype = farg->type; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
968 |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
969 #if DMDV2 |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
970 /* Allow string literals which are type [] to match with [dim] |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
971 */ |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
972 if (farg->op == TOKstring) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
973 { StringExp *se = (StringExp *)farg; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
974 if (!se->committed && argtype->ty == Tarray && |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
975 fparam->type->toBasetype()->ty == Tsarray) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
976 { |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
977 argtype = new TypeSArray(argtype->nextOf(), new IntegerExp(se->loc, se->len, Type::tindex)); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
978 argtype = argtype->semantic(se->loc, NULL); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
979 argtype = argtype->invariantOf(); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
980 } |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
981 } |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
982 #endif |
336 | 983 |
984 MATCH m; | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
985 m = argtype->deduceType(paramscope, fparam->type, parameters, &dedtypes); |
336 | 986 //printf("\tdeduceType m = %d\n", m); |
987 | |
988 /* If no match, see if there's a conversion to a delegate | |
989 */ | |
990 if (!m && fparam->type->toBasetype()->ty == Tdelegate) | |
991 { | |
992 TypeDelegate *td = (TypeDelegate *)fparam->type->toBasetype(); | |
993 TypeFunction *tf = (TypeFunction *)td->next; | |
994 | |
995 if (!tf->varargs && Argument::dim(tf->parameters) == 0) | |
996 { | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
997 m = farg->type->deduceType(paramscope, tf->next, parameters, &dedtypes); |
336 | 998 if (!m && tf->next->toBasetype()->ty == Tvoid) |
999 m = MATCHconvert; | |
1000 } | |
1001 //printf("\tm2 = %d\n", m); | |
1002 } | |
1003 | |
1004 if (m) | |
1005 { if (m < match) | |
1006 match = m; // pick worst match | |
1007 continue; | |
1008 } | |
1009 } | |
1010 | |
1011 /* The following code for variadic arguments closely | |
1012 * matches TypeFunction::callMatch() | |
1013 */ | |
1014 if (!(fdtype->varargs == 2 && i + 1 == nfparams)) | |
1015 goto Lnomatch; | |
1016 | |
1017 /* Check for match with function parameter T... | |
1018 */ | |
1019 Type *tb = fparam->type->toBasetype(); | |
1020 switch (tb->ty) | |
1021 { | |
1022 // Perhaps we can do better with this, see TypeFunction::callMatch() | |
1023 case Tsarray: | |
1024 { TypeSArray *tsa = (TypeSArray *)tb; | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1025 dinteger_t sz = tsa->dim->toInteger(); |
336 | 1026 if (sz != nfargs - i) |
1027 goto Lnomatch; | |
1028 } | |
1029 case Tarray: | |
1030 { TypeArray *ta = (TypeArray *)tb; | |
1031 for (; i < nfargs; i++) | |
1032 { | |
1033 Expression *arg = (Expression *)fargs->data[i]; | |
1034 assert(arg); | |
1035 MATCH m; | |
1036 /* If lazy array of delegates, | |
1037 * convert arg(s) to delegate(s) | |
1038 */ | |
1039 Type *tret = fparam->isLazyArray(); | |
1040 if (tret) | |
1041 { | |
1042 if (ta->next->equals(arg->type)) | |
1043 { m = MATCHexact; | |
1044 } | |
1045 else | |
1046 { | |
1047 m = arg->implicitConvTo(tret); | |
1048 if (m == MATCHnomatch) | |
1049 { | |
1050 if (tret->toBasetype()->ty == Tvoid) | |
1051 m = MATCHconvert; | |
1052 } | |
1053 } | |
1054 } | |
1055 else | |
1056 { | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1057 m = arg->type->deduceType(paramscope, ta->next, parameters, &dedtypes); |
336 | 1058 //m = arg->implicitConvTo(ta->next); |
1059 } | |
1060 if (m == MATCHnomatch) | |
1061 goto Lnomatch; | |
1062 if (m < match) | |
1063 match = m; | |
1064 } | |
1065 goto Lmatch; | |
1066 } | |
1067 case Tclass: | |
1068 case Tident: | |
1069 goto Lmatch; | |
1070 | |
1071 default: | |
1072 goto Lnomatch; | |
1073 } | |
1074 } | |
1075 | |
1076 Lmatch: | |
1077 | |
1078 /* Fill in any missing arguments with their defaults. | |
1079 */ | |
1080 for (i = nargsi; i < dedargs->dim; i++) | |
1081 { | |
1082 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
1083 //printf("tp[%d] = %s\n", i, tp->ident->toChars()); | |
1084 /* For T:T*, the dedargs is the T*, dedtypes is the T | |
1085 * But for function templates, we really need them to match | |
1086 */ | |
1087 Object *oarg = (Object *)dedargs->data[i]; | |
1088 Object *oded = (Object *)dedtypes.data[i]; | |
1089 //printf("1dedargs[%d] = %p, dedtypes[%d] = %p\n", i, oarg, i, oded); | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1090 //if (oarg) printf("oarg: %s\n", oarg->toChars()); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1091 //if (oded) printf("oded: %s\n", oded->toChars()); |
336 | 1092 if (!oarg) |
1093 { | |
1094 if (oded) | |
1095 { | |
1096 if (tp->specialization()) | |
1097 { /* The specialization can work as long as afterwards | |
1098 * the oded == oarg | |
1099 */ | |
1100 Declaration *sparam; | |
1101 dedargs->data[i] = (void *)oded; | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1102 MATCH m2 = tp->matchArg(paramscope, dedargs, i, parameters, &dedtypes, &sparam, 0); |
336 | 1103 //printf("m2 = %d\n", m2); |
1104 if (!m2) | |
1105 goto Lnomatch; | |
1106 if (m2 < match) | |
1107 match = m2; // pick worst match | |
1108 if (dedtypes.data[i] != oded) | |
1109 error("specialization not allowed for deduced parameter %s", tp->ident->toChars()); | |
1110 } | |
1111 } | |
1112 else | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1113 { oded = tp->defaultArg(loc, paramscope); |
336 | 1114 if (!oded) |
1115 goto Lnomatch; | |
1116 } | |
1117 declareParameter(paramscope, tp, oded); | |
1118 dedargs->data[i] = (void *)oded; | |
1119 } | |
1120 } | |
1121 | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1122 #if DMDV2 |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1123 if (constraint) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1124 { /* Check to see if constraint is satisfied. |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1125 */ |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1126 Expression *e = constraint->syntaxCopy(); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1127 paramscope->flags |= SCOPEstaticif; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1128 e = e->semantic(paramscope); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1129 e = e->optimize(WANTvalue | WANTinterpret); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1130 if (e->isBool(TRUE)) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1131 ; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1132 else if (e->isBool(FALSE)) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1133 goto Lnomatch; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1134 else |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1135 { |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1136 e->error("constraint %s is not constant or does not evaluate to a bool", e->toChars()); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1137 } |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1138 } |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1139 #endif |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1140 |
336 | 1141 #if 0 |
1142 for (i = 0; i < dedargs->dim; i++) | |
1143 { Type *t = (Type *)dedargs->data[i]; | |
1144 printf("\tdedargs[%d] = %d, %s\n", i, t->dyncast(), t->toChars()); | |
1145 } | |
1146 #endif | |
1147 | |
1148 paramscope->pop(); | |
1149 //printf("\tmatch %d\n", match); | |
1150 return match; | |
1151 | |
1152 Lnomatch: | |
1153 paramscope->pop(); | |
1154 //printf("\tnomatch\n"); | |
1155 return MATCHnomatch; | |
1156 } | |
1157 | |
1158 /************************************************** | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1159 * Declare template parameter tp with value o, and install it in the scope sc. |
336 | 1160 */ |
1161 | |
1162 void TemplateDeclaration::declareParameter(Scope *sc, TemplateParameter *tp, Object *o) | |
1163 { | |
1164 //printf("TemplateDeclaration::declareParameter('%s', o = %p)\n", tp->ident->toChars(), o); | |
1165 | |
1166 Type *targ = isType(o); | |
1167 Expression *ea = isExpression(o); | |
1168 Dsymbol *sa = isDsymbol(o); | |
1169 Tuple *va = isTuple(o); | |
1170 | |
1171 Dsymbol *s; | |
1172 | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1173 // See if tp->ident already exists with a matching definition |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1174 Dsymbol *scopesym; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1175 s = sc->search(loc, tp->ident, &scopesym); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1176 if (s && scopesym == sc->scopesym) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1177 { |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1178 TupleDeclaration *td = s->isTupleDeclaration(); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1179 if (va && td) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1180 { Tuple tup; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1181 tup.objects = *td->objects; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1182 if (match(va, &tup, this, sc)) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1183 { |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1184 return; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1185 } |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1186 } |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1187 } |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1188 |
336 | 1189 if (targ) |
1190 { | |
1191 //printf("type %s\n", targ->toChars()); | |
1192 s = new AliasDeclaration(0, tp->ident, targ); | |
1193 } | |
1194 else if (sa) | |
1195 { | |
1196 //printf("Alias %s %s;\n", sa->ident->toChars(), tp->ident->toChars()); | |
1197 s = new AliasDeclaration(0, tp->ident, sa); | |
1198 } | |
1199 else if (ea) | |
1200 { | |
1201 // tdtypes.data[i] always matches ea here | |
1202 Initializer *init = new ExpInitializer(loc, ea); | |
1203 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
1204 assert(tvp); | |
1205 | |
1206 VarDeclaration *v = new VarDeclaration(loc, tvp->valType, tp->ident, init); | |
1207 v->storage_class = STCconst; | |
1208 s = v; | |
1209 } | |
1210 else if (va) | |
1211 { | |
1212 //printf("\ttuple\n"); | |
1213 s = new TupleDeclaration(loc, tp->ident, &va->objects); | |
1214 } | |
1215 else | |
1216 { | |
1217 #ifdef DEBUG | |
1218 o->print(); | |
1219 #endif | |
1220 assert(0); | |
1221 } | |
1222 if (!sc->insert(s)) | |
1223 error("declaration %s is already defined", tp->ident->toChars()); | |
1224 s->semantic(sc); | |
1225 } | |
1226 | |
1227 /************************************** | |
1228 * Determine if TemplateDeclaration is variadic. | |
1229 */ | |
1230 | |
1231 TemplateTupleParameter *isVariadic(TemplateParameters *parameters) | |
1232 { size_t dim = parameters->dim; | |
1233 TemplateTupleParameter *tp = NULL; | |
1234 | |
1235 if (dim) | |
1236 tp = ((TemplateParameter *)parameters->data[dim - 1])->isTemplateTupleParameter(); | |
1237 return tp; | |
1238 } | |
1239 | |
1240 TemplateTupleParameter *TemplateDeclaration::isVariadic() | |
1241 { | |
1242 return ::isVariadic(parameters); | |
1243 } | |
1244 | |
1245 /*********************************** | |
1246 * We can overload templates. | |
1247 */ | |
1248 | |
1249 int TemplateDeclaration::isOverloadable() | |
1250 { | |
1251 return 1; | |
1252 } | |
1253 | |
1254 /************************************************* | |
1255 * Given function arguments, figure out which template function | |
1256 * to expand, and return that function. | |
1257 * If no match, give error message and return NULL. | |
1258 * Input: | |
1259 * sc instantiation scope | |
1260 * loc instantiation location | |
1261 * targsi initial list of template arguments | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1262 * ethis if !NULL, the 'this' pointer argument |
336 | 1263 * fargs arguments to function |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1264 * flags 1: do not issue error message on no match, just return NULL |
336 | 1265 */ |
1266 | |
1267 FuncDeclaration *TemplateDeclaration::deduceFunctionTemplate(Scope *sc, Loc loc, | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1268 Objects *targsi, Expression *ethis, Expressions *fargs, int flags) |
336 | 1269 { |
1270 MATCH m_best = MATCHnomatch; | |
1271 TemplateDeclaration *td_ambig = NULL; | |
1272 TemplateDeclaration *td_best = NULL; | |
1273 Objects *tdargs = new Objects(); | |
1274 TemplateInstance *ti; | |
1275 FuncDeclaration *fd; | |
1276 | |
1277 #if 0 | |
1278 printf("TemplateDeclaration::deduceFunctionTemplate() %s\n", toChars()); | |
1279 printf(" targsi:\n"); | |
1280 if (targsi) | |
1281 { for (int i = 0; i < targsi->dim; i++) | |
1282 { Object *arg = (Object *)targsi->data[i]; | |
1283 printf("\t%s\n", arg->toChars()); | |
1284 } | |
1285 } | |
1286 printf(" fargs:\n"); | |
1287 for (int i = 0; i < fargs->dim; i++) | |
1288 { Expression *arg = (Expression *)fargs->data[i]; | |
1289 printf("\t%s %s\n", arg->type->toChars(), arg->toChars()); | |
1290 //printf("\tty = %d\n", arg->type->ty); | |
1291 } | |
1292 #endif | |
1293 | |
1294 for (TemplateDeclaration *td = this; td; td = td->overnext) | |
1295 { | |
1296 if (!td->scope) | |
1297 { | |
1298 error("forward reference to template %s", td->toChars()); | |
1299 goto Lerror; | |
1300 } | |
1301 if (!td->onemember || !td->onemember->toAlias()->isFuncDeclaration()) | |
1302 { | |
1303 error("is not a function template"); | |
1304 goto Lerror; | |
1305 } | |
1306 | |
1307 MATCH m; | |
1308 Objects dedargs; | |
1309 | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1310 m = td->deduceFunctionTemplateMatch(loc, targsi, ethis, fargs, &dedargs); |
336 | 1311 //printf("deduceFunctionTemplateMatch = %d\n", m); |
1312 if (!m) // if no match | |
1313 continue; | |
1314 | |
1315 if (m < m_best) | |
1316 goto Ltd_best; | |
1317 if (m > m_best) | |
1318 goto Ltd; | |
1319 | |
1320 { | |
1321 // Disambiguate by picking the most specialized TemplateDeclaration | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1322 MATCH c1 = td->leastAsSpecialized(td_best); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1323 MATCH c2 = td_best->leastAsSpecialized(td); |
336 | 1324 //printf("c1 = %d, c2 = %d\n", c1, c2); |
1325 | |
1326 if (c1 > c2) | |
1327 goto Ltd; | |
1328 else if (c1 < c2) | |
1329 goto Ltd_best; | |
1330 else | |
1331 goto Lambig; | |
1332 } | |
1333 | |
1334 Lambig: // td_best and td are ambiguous | |
1335 td_ambig = td; | |
1336 continue; | |
1337 | |
1338 Ltd_best: // td_best is the best match so far | |
1339 td_ambig = NULL; | |
1340 continue; | |
1341 | |
1342 Ltd: // td is the new best match | |
1343 td_ambig = NULL; | |
1344 assert((size_t)td->scope > 0x10000); | |
1345 td_best = td; | |
1346 m_best = m; | |
1347 tdargs->setDim(dedargs.dim); | |
1348 memcpy(tdargs->data, dedargs.data, tdargs->dim * sizeof(void *)); | |
1349 continue; | |
1350 } | |
1351 if (!td_best) | |
1352 { | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1353 error(loc, "does not match any function template declaration"); |
336 | 1354 goto Lerror; |
1355 } | |
1356 if (td_ambig) | |
1357 { | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1358 error(loc, "matches more than one function template declaration:\n %s\nand:\n %s", |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1359 td_best->toChars(), td_ambig->toChars()); |
336 | 1360 } |
1361 | |
1362 /* The best match is td_best with arguments tdargs. | |
1363 * Now instantiate the template. | |
1364 */ | |
1365 assert((size_t)td_best->scope > 0x10000); | |
1366 ti = new TemplateInstance(loc, td_best, tdargs); | |
1367 ti->semantic(sc); | |
1368 fd = ti->toAlias()->isFuncDeclaration(); | |
1369 if (!fd) | |
1370 goto Lerror; | |
1371 return fd; | |
1372 | |
1373 Lerror: | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1374 #if DMDV2 |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1375 if (!(flags & 1)) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1376 #endif |
336 | 1377 { |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1378 HdrGenState hgs; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1379 |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1380 OutBuffer bufa; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1381 Objects *args = targsi; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1382 if (args) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1383 { for (int i = 0; i < args->dim; i++) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1384 { |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1385 if (i) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1386 bufa.writeByte(','); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1387 Object *oarg = (Object *)args->data[i]; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1388 ObjectToCBuffer(&bufa, &hgs, oarg); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1389 } |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1390 } |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1391 |
336 | 1392 OutBuffer buf; |
1393 argExpTypesToCBuffer(&buf, fargs, &hgs); | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1394 error(loc, "cannot deduce template function from argument types !(%s)(%s)", |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1395 bufa.toChars(), buf.toChars()); |
336 | 1396 } |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1397 return NULL; |
336 | 1398 } |
1399 | |
1400 void TemplateDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
1401 { | |
1402 #if 0 // Should handle template functions | |
1403 if (onemember && onemember->isFuncDeclaration()) | |
1404 buf->writestring("foo "); | |
1405 #endif | |
1406 buf->writestring(kind()); | |
1407 buf->writeByte(' '); | |
1408 buf->writestring(ident->toChars()); | |
1409 buf->writeByte('('); | |
1410 for (int i = 0; i < parameters->dim; i++) | |
1411 { | |
1412 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
1413 if (hgs->ddoc) | |
1414 tp = (TemplateParameter *)origParameters->data[i]; | |
1415 if (i) | |
1416 buf->writeByte(','); | |
1417 tp->toCBuffer(buf, hgs); | |
1418 } | |
1419 buf->writeByte(')'); | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1420 #if DMDV2 |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1421 if (constraint) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1422 { buf->writestring(" if ("); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1423 constraint->toCBuffer(buf, hgs); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1424 buf->writeByte(')'); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1425 } |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1426 #endif |
336 | 1427 |
1428 if (hgs->hdrgen) | |
1429 { | |
1430 hgs->tpltMember++; | |
1431 buf->writenl(); | |
1432 buf->writebyte('{'); | |
1433 buf->writenl(); | |
1434 for (int i = 0; i < members->dim; i++) | |
1435 { | |
1436 Dsymbol *s = (Dsymbol *)members->data[i]; | |
1437 s->toCBuffer(buf, hgs); | |
1438 } | |
1439 buf->writebyte('}'); | |
1440 buf->writenl(); | |
1441 hgs->tpltMember--; | |
1442 } | |
1443 } | |
1444 | |
1445 | |
1446 char *TemplateDeclaration::toChars() | |
1447 { OutBuffer buf; | |
1448 HdrGenState hgs; | |
1449 | |
1450 memset(&hgs, 0, sizeof(hgs)); | |
1451 buf.writestring(ident->toChars()); | |
1452 buf.writeByte('('); | |
1453 for (int i = 0; i < parameters->dim; i++) | |
1454 { | |
1455 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
1456 if (i) | |
1457 buf.writeByte(','); | |
1458 tp->toCBuffer(&buf, &hgs); | |
1459 } | |
1460 buf.writeByte(')'); | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1461 #if DMDV2 |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1462 if (constraint) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1463 { buf.writestring(" if ("); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1464 constraint->toCBuffer(&buf, &hgs); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1465 buf.writeByte(')'); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1466 } |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1467 #endif |
336 | 1468 buf.writeByte(0); |
1469 return (char *)buf.extractData(); | |
1470 } | |
1471 | |
1472 /* ======================== Type ============================================ */ | |
1473 | |
1474 /**** | |
1475 * Given an identifier, figure out which TemplateParameter it is. | |
1476 * Return -1 if not found. | |
1477 */ | |
1478 | |
1479 int templateIdentifierLookup(Identifier *id, TemplateParameters *parameters) | |
1480 { | |
1481 for (size_t i = 0; i < parameters->dim; i++) | |
1482 { TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
1483 | |
1484 if (tp->ident->equals(id)) | |
1485 return i; | |
1486 } | |
1487 return -1; | |
1488 } | |
1489 | |
1490 int templateParameterLookup(Type *tparam, TemplateParameters *parameters) | |
1491 { | |
1492 assert(tparam->ty == Tident); | |
1493 TypeIdentifier *tident = (TypeIdentifier *)tparam; | |
1494 //printf("\ttident = '%s'\n", tident->toChars()); | |
1495 if (tident->idents.dim == 0) | |
1496 { | |
1497 return templateIdentifierLookup(tident->ident, parameters); | |
1498 } | |
1499 return -1; | |
1500 } | |
1501 | |
1502 /* These form the heart of template argument deduction. | |
1503 * Given 'this' being the type argument to the template instance, | |
1504 * it is matched against the template declaration parameter specialization | |
1505 * 'tparam' to determine the type to be used for the parameter. | |
1506 * Example: | |
1507 * template Foo(T:T*) // template declaration | |
1508 * Foo!(int*) // template instantiation | |
1509 * Input: | |
1510 * this = int* | |
1511 * tparam = T | |
1512 * parameters = [ T:T* ] // Array of TemplateParameter's | |
1513 * Output: | |
1514 * dedtypes = [ int ] // Array of Expression/Type's | |
1515 */ | |
1516 | |
1517 MATCH Type::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, | |
1518 Objects *dedtypes) | |
1519 { | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1520 #if 0 |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1521 printf("Type::deduceType()\n"); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1522 printf("\tthis = %d, ", ty); print(); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1523 printf("\ttparam = %d, ", tparam->ty); tparam->print(); |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1524 #endif |
336 | 1525 if (!tparam) |
1526 goto Lnomatch; | |
1527 | |
1528 if (this == tparam) | |
1529 goto Lexact; | |
1530 | |
1531 if (tparam->ty == Tident) | |
1532 { | |
1533 // Determine which parameter tparam is | |
1534 int i = templateParameterLookup(tparam, parameters); | |
1535 if (i == -1) | |
1536 { | |
1537 if (!sc) | |
1538 goto Lnomatch; | |
1539 | |
1540 /* Need a loc to go with the semantic routine. | |
1541 */ | |
1542 Loc loc; | |
1543 if (parameters->dim) | |
1544 { | |
1545 TemplateParameter *tp = (TemplateParameter *)parameters->data[0]; | |
1546 loc = tp->loc; | |
1547 } | |
1548 | |
1549 /* BUG: what if tparam is a template instance, that | |
1550 * has as an argument another Tident? | |
1551 */ | |
1552 tparam = tparam->semantic(loc, sc); | |
1553 assert(tparam->ty != Tident); | |
1554 return deduceType(sc, tparam, parameters, dedtypes); | |
1555 } | |
1556 | |
1557 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
1558 | |
1559 // Found the corresponding parameter tp | |
1560 if (!tp->isTemplateTypeParameter()) | |
1561 goto Lnomatch; | |
1562 Type *at = (Type *)dedtypes->data[i]; | |
1563 if (!at) | |
1564 { | |
1565 dedtypes->data[i] = (void *)this; | |
1566 goto Lexact; | |
1567 } | |
1568 if (equals(at)) | |
1569 goto Lexact; | |
1570 else if (ty == Tclass && at->ty == Tclass) | |
1571 { | |
1572 return (MATCH) implicitConvTo(at); | |
1573 } | |
1574 else if (ty == Tsarray && at->ty == Tarray && | |
1575 nextOf()->equals(at->nextOf())) | |
1576 { | |
1577 goto Lexact; | |
1578 } | |
1579 else | |
1580 goto Lnomatch; | |
1581 } | |
1582 | |
1583 if (ty != tparam->ty) | |
1584 return implicitConvTo(tparam); | |
1585 // goto Lnomatch; | |
1586 | |
1587 if (nextOf()) | |
1588 return nextOf()->deduceType(sc, tparam->nextOf(), parameters, dedtypes); | |
1589 | |
1590 Lexact: | |
1591 return MATCHexact; | |
1592 | |
1593 Lnomatch: | |
1594 return MATCHnomatch; | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1595 |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1596 #if DMDV2 |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1597 Lconst: |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1598 return MATCHconst; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1599 #endif |
336 | 1600 } |
1601 | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1602 #if DMDV2 |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1603 MATCH TypeDArray::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1604 Objects *dedtypes) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1605 { |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1606 #if 0 |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1607 printf("TypeDArray::deduceType()\n"); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1608 printf("\tthis = %d, ", ty); print(); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1609 printf("\ttparam = %d, ", tparam->ty); tparam->print(); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1610 #endif |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1611 return Type::deduceType(sc, tparam, parameters, dedtypes); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1612 |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1613 Lnomatch: |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1614 return MATCHnomatch; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1615 } |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1616 #endif |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1617 |
336 | 1618 MATCH TypeSArray::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, |
1619 Objects *dedtypes) | |
1620 { | |
1621 #if 0 | |
1622 printf("TypeSArray::deduceType()\n"); | |
1623 printf("\tthis = %d, ", ty); print(); | |
1624 printf("\ttparam = %d, ", tparam->ty); tparam->print(); | |
1625 #endif | |
1626 | |
1627 // Extra check that array dimensions must match | |
1628 if (tparam) | |
1629 { | |
1630 if (tparam->ty == Tsarray) | |
1631 { | |
1632 TypeSArray *tp = (TypeSArray *)tparam; | |
1633 | |
1634 if (tp->dim->op == TOKvar && | |
1635 ((VarExp *)tp->dim)->var->storage_class & STCtemplateparameter) | |
1636 { int i = templateIdentifierLookup(((VarExp *)tp->dim)->var->ident, parameters); | |
1637 // This code matches code in TypeInstance::deduceType() | |
1638 if (i == -1) | |
1639 goto Lnomatch; | |
1640 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
1641 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
1642 if (!tvp) | |
1643 goto Lnomatch; | |
1644 Expression *e = (Expression *)dedtypes->data[i]; | |
1645 if (e) | |
1646 { | |
1647 if (!dim->equals(e)) | |
1648 goto Lnomatch; | |
1649 } | |
1650 else | |
1651 { Type *vt = tvp->valType->semantic(0, sc); | |
1652 MATCH m = (MATCH)dim->implicitConvTo(vt); | |
1653 if (!m) | |
1654 goto Lnomatch; | |
1655 dedtypes->data[i] = dim; | |
1656 } | |
1657 } | |
1658 else if (dim->toInteger() != tp->dim->toInteger()) | |
1659 return MATCHnomatch; | |
1660 } | |
1661 else if (tparam->ty == Taarray) | |
1662 { | |
1663 TypeAArray *tp = (TypeAArray *)tparam; | |
1664 if (tp->index->ty == Tident) | |
1665 { TypeIdentifier *tident = (TypeIdentifier *)tp->index; | |
1666 | |
1667 if (tident->idents.dim == 0) | |
1668 { Identifier *id = tident->ident; | |
1669 | |
1670 for (size_t i = 0; i < parameters->dim; i++) | |
1671 { | |
1672 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
1673 | |
1674 if (tp->ident->equals(id)) | |
1675 { // Found the corresponding template parameter | |
1676 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
1677 if (!tvp || !tvp->valType->isintegral()) | |
1678 goto Lnomatch; | |
1679 | |
1680 if (dedtypes->data[i]) | |
1681 { | |
1682 if (!dim->equals((Object *)dedtypes->data[i])) | |
1683 goto Lnomatch; | |
1684 } | |
1685 else | |
1686 { dedtypes->data[i] = (void *)dim; | |
1687 } | |
1688 return next->deduceType(sc, tparam->nextOf(), parameters, dedtypes); | |
1689 } | |
1690 } | |
1691 } | |
1692 } | |
1693 } | |
1694 else if (tparam->ty == Tarray) | |
1695 { MATCH m; | |
1696 | |
1697 m = next->deduceType(sc, tparam->nextOf(), parameters, dedtypes); | |
1698 if (m == MATCHexact) | |
1699 m = MATCHconvert; | |
1700 return m; | |
1701 } | |
1702 } | |
1703 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
1704 | |
1705 Lnomatch: | |
1706 return MATCHnomatch; | |
1707 } | |
1708 | |
1709 MATCH TypeAArray::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
1710 { | |
1711 #if 0 | |
1712 printf("TypeAArray::deduceType()\n"); | |
1713 printf("\tthis = %d, ", ty); print(); | |
1714 printf("\ttparam = %d, ", tparam->ty); tparam->print(); | |
1715 #endif | |
1716 | |
1717 // Extra check that index type must match | |
1718 if (tparam && tparam->ty == Taarray) | |
1719 { | |
1720 TypeAArray *tp = (TypeAArray *)tparam; | |
1721 if (!index->deduceType(sc, tp->index, parameters, dedtypes)) | |
1722 { | |
1723 return MATCHnomatch; | |
1724 } | |
1725 } | |
1726 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
1727 } | |
1728 | |
1729 MATCH TypeFunction::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
1730 { | |
1731 //printf("TypeFunction::deduceType()\n"); | |
1732 //printf("\tthis = %d, ", ty); print(); | |
1733 //printf("\ttparam = %d, ", tparam->ty); tparam->print(); | |
1734 | |
1735 // Extra check that function characteristics must match | |
1736 if (tparam && tparam->ty == Tfunction) | |
1737 { | |
1738 TypeFunction *tp = (TypeFunction *)tparam; | |
1739 if (varargs != tp->varargs || | |
1740 linkage != tp->linkage) | |
1741 return MATCHnomatch; | |
1742 | |
1743 size_t nfargs = Argument::dim(this->parameters); | |
1744 size_t nfparams = Argument::dim(tp->parameters); | |
1745 | |
1746 /* See if tuple match | |
1747 */ | |
1748 if (nfparams > 0 && nfargs >= nfparams - 1) | |
1749 { | |
1750 /* See if 'A' of the template parameter matches 'A' | |
1751 * of the type of the last function parameter. | |
1752 */ | |
1753 Argument *fparam = (Argument *)tp->parameters->data[nfparams - 1]; | |
1754 if (fparam->type->ty != Tident) | |
1755 goto L1; | |
1756 TypeIdentifier *tid = (TypeIdentifier *)fparam->type; | |
1757 if (tid->idents.dim) | |
1758 goto L1; | |
1759 | |
1760 /* Look through parameters to find tuple matching tid->ident | |
1761 */ | |
1762 size_t tupi = 0; | |
1763 for (; 1; tupi++) | |
1764 { if (tupi == parameters->dim) | |
1765 goto L1; | |
1766 TemplateParameter *t = (TemplateParameter *)parameters->data[tupi]; | |
1767 TemplateTupleParameter *tup = t->isTemplateTupleParameter(); | |
1768 if (tup && tup->ident->equals(tid->ident)) | |
1769 break; | |
1770 } | |
1771 | |
1772 /* The types of the function arguments [nfparams - 1 .. nfargs] | |
1773 * now form the tuple argument. | |
1774 */ | |
1775 int tuple_dim = nfargs - (nfparams - 1); | |
1776 | |
1777 /* See if existing tuple, and whether it matches or not | |
1778 */ | |
1779 Object *o = (Object *)dedtypes->data[tupi]; | |
1780 if (o) | |
1781 { // Existing deduced argument must be a tuple, and must match | |
1782 Tuple *t = isTuple(o); | |
1783 if (!t || t->objects.dim != tuple_dim) | |
1784 return MATCHnomatch; | |
1785 for (size_t i = 0; i < tuple_dim; i++) | |
1786 { Argument *arg = Argument::getNth(this->parameters, nfparams - 1 + i); | |
1787 if (!arg->type->equals((Object *)t->objects.data[i])) | |
1788 return MATCHnomatch; | |
1789 } | |
1790 } | |
1791 else | |
1792 { // Create new tuple | |
1793 Tuple *t = new Tuple(); | |
1794 t->objects.setDim(tuple_dim); | |
1795 for (size_t i = 0; i < tuple_dim; i++) | |
1796 { Argument *arg = Argument::getNth(this->parameters, nfparams - 1 + i); | |
1797 t->objects.data[i] = (void *)arg->type; | |
1798 } | |
1799 dedtypes->data[tupi] = (void *)t; | |
1800 } | |
1801 nfparams--; // don't consider the last parameter for type deduction | |
1802 goto L2; | |
1803 } | |
1804 | |
1805 L1: | |
1806 if (nfargs != nfparams) | |
1807 return MATCHnomatch; | |
1808 L2: | |
1809 for (size_t i = 0; i < nfparams; i++) | |
1810 { | |
1811 Argument *a = Argument::getNth(this->parameters, i); | |
1812 Argument *ap = Argument::getNth(tp->parameters, i); | |
1813 if (a->storageClass != ap->storageClass || | |
1814 !a->type->deduceType(sc, ap->type, parameters, dedtypes)) | |
1815 return MATCHnomatch; | |
1816 } | |
1817 } | |
1818 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
1819 } | |
1820 | |
1821 MATCH TypeIdentifier::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
1822 { | |
1823 // Extra check | |
1824 if (tparam && tparam->ty == Tident) | |
1825 { | |
1826 TypeIdentifier *tp = (TypeIdentifier *)tparam; | |
1827 | |
1828 for (int i = 0; i < idents.dim; i++) | |
1829 { | |
1830 Identifier *id1 = (Identifier *)idents.data[i]; | |
1831 Identifier *id2 = (Identifier *)tp->idents.data[i]; | |
1832 | |
1833 if (!id1->equals(id2)) | |
1834 return MATCHnomatch; | |
1835 } | |
1836 } | |
1837 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
1838 } | |
1839 | |
1840 MATCH TypeInstance::deduceType(Scope *sc, | |
1841 Type *tparam, TemplateParameters *parameters, | |
1842 Objects *dedtypes) | |
1843 { | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1844 #if 0 |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1845 printf("TypeInstance::deduceType()\n"); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1846 printf("\tthis = %d, ", ty); print(); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1847 printf("\ttparam = %d, ", tparam->ty); tparam->print(); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1848 #endif |
336 | 1849 |
1850 // Extra check | |
1851 if (tparam && tparam->ty == Tinstance) | |
1852 { | |
1853 TypeInstance *tp = (TypeInstance *)tparam; | |
1854 | |
1855 //printf("tempinst->tempdecl = %p\n", tempinst->tempdecl); | |
1856 //printf("tp->tempinst->tempdecl = %p\n", tp->tempinst->tempdecl); | |
1857 if (!tp->tempinst->tempdecl) | |
1858 { //printf("tp->tempinst->name = '%s'\n", tp->tempinst->name->toChars()); | |
1859 if (!tp->tempinst->name->equals(tempinst->name)) | |
1860 { | |
1861 /* Handle case of: | |
1862 * template Foo(T : sa!(T), alias sa) | |
1863 */ | |
1864 int i = templateIdentifierLookup(tp->tempinst->name, parameters); | |
1865 if (i == -1) | |
1866 { /* Didn't find it as a parameter identifier. Try looking | |
1867 * it up and seeing if is an alias. See Bugzilla 1454 | |
1868 */ | |
1869 Dsymbol *s = tempinst->tempdecl->scope->search(0, tp->tempinst->name, NULL); | |
1870 if (s) | |
1871 { | |
1872 s = s->toAlias(); | |
1873 TemplateDeclaration *td = s->isTemplateDeclaration(); | |
1874 if (td && td == tempinst->tempdecl) | |
1875 goto L2; | |
1876 } | |
1877 goto Lnomatch; | |
1878 } | |
1879 TemplateParameter *tpx = (TemplateParameter *)parameters->data[i]; | |
1880 // This logic duplicates tpx->matchArg() | |
1881 TemplateAliasParameter *ta = tpx->isTemplateAliasParameter(); | |
1882 if (!ta) | |
1883 goto Lnomatch; | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1884 Object *sa = tempinst->tempdecl; |
336 | 1885 if (!sa) |
1886 goto Lnomatch; | |
1887 if (ta->specAlias && sa != ta->specAlias) | |
1888 goto Lnomatch; | |
1889 if (dedtypes->data[i]) | |
1890 { // Must match already deduced symbol | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1891 Object *s = (Object *)dedtypes->data[i]; |
336 | 1892 |
1893 if (s != sa) | |
1894 goto Lnomatch; | |
1895 } | |
1896 dedtypes->data[i] = sa; | |
1897 } | |
1898 } | |
1899 else if (tempinst->tempdecl != tp->tempinst->tempdecl) | |
1900 goto Lnomatch; | |
1901 | |
1902 L2: | |
1903 | |
1904 for (int i = 0; i < tempinst->tiargs->dim; i++) | |
1905 { | |
1906 //printf("\ttest: tempinst->tiargs[%d]\n", i); | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1907 if (i >= tp->tempinst->tiargs->dim) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1908 goto Lnomatch; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1909 |
336 | 1910 int j; |
1911 Object *o1 = (Object *)tempinst->tiargs->data[i]; | |
1912 Object *o2 = (Object *)tp->tempinst->tiargs->data[i]; | |
1913 | |
1914 Type *t1 = isType(o1); | |
1915 Type *t2 = isType(o2); | |
1916 | |
1917 Expression *e1 = isExpression(o1); | |
1918 Expression *e2 = isExpression(o2); | |
1919 | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1920 Dsymbol *s1 = isDsymbol(o1); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1921 Dsymbol *s2 = isDsymbol(o2); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1922 |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1923 Tuple *v1 = isTuple(o1); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1924 Tuple *v2 = isTuple(o2); |
336 | 1925 #if 0 |
1926 if (t1) printf("t1 = %s\n", t1->toChars()); | |
1927 if (t2) printf("t2 = %s\n", t2->toChars()); | |
1928 if (e1) printf("e1 = %s\n", e1->toChars()); | |
1929 if (e2) printf("e2 = %s\n", e2->toChars()); | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1930 if (s1) printf("s1 = %s\n", s1->toChars()); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1931 if (s2) printf("s2 = %s\n", s2->toChars()); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1932 if (v1) printf("v1 = %s\n", v1->toChars()); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1933 if (v2) printf("v2 = %s\n", v2->toChars()); |
336 | 1934 #endif |
1935 | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1936 TemplateTupleParameter *ttp; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1937 if (t2 && |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1938 t2->ty == Tident && |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1939 i == tp->tempinst->tiargs->dim - 1 && |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1940 i == tempinst->tempdecl->parameters->dim - 1 && |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1941 (ttp = tempinst->tempdecl->isVariadic()) != NULL) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1942 { |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1943 /* Given: |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1944 * struct A(B...) {} |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1945 * alias A!(int, float) X; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1946 * static if (!is(X Y == A!(Z), Z)) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1947 * deduce that Z is a tuple(int, float) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1948 */ |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1949 |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1950 j = templateParameterLookup(t2, parameters); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1951 if (j == -1) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1952 goto Lnomatch; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1953 |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1954 /* Create tuple from remaining args |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1955 */ |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1956 Tuple *vt = new Tuple(); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1957 int vtdim = tempinst->tiargs->dim - i; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1958 vt->objects.setDim(vtdim); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1959 for (size_t k = 0; k < vtdim; k++) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1960 vt->objects.data[k] = (void *)tempinst->tiargs->data[i + k]; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1961 |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1962 Tuple *v = (Tuple *)dedtypes->data[j]; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1963 if (v) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1964 { |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1965 if (!match(v, vt, tempinst->tempdecl, sc)) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1966 goto Lnomatch; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1967 } |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1968 else |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1969 dedtypes->data[j] = vt; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1970 break; //return MATCHexact; |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1971 } |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1972 |
336 | 1973 if (t1 && t2) |
1974 { | |
1975 if (!t1->deduceType(sc, t2, parameters, dedtypes)) | |
1976 goto Lnomatch; | |
1977 } | |
1978 else if (e1 && e2) | |
1979 { | |
1980 if (!e1->equals(e2)) | |
1981 { if (e2->op == TOKvar) | |
1982 { | |
1983 /* | |
1984 * (T:Number!(e2), int e2) | |
1985 */ | |
1986 j = templateIdentifierLookup(((VarExp *)e2)->var->ident, parameters); | |
1987 goto L1; | |
1988 } | |
1989 goto Lnomatch; | |
1990 } | |
1991 } | |
1992 else if (e1 && t2 && t2->ty == Tident) | |
1993 { | |
1994 j = templateParameterLookup(t2, parameters); | |
1995 L1: | |
1996 if (j == -1) | |
1997 goto Lnomatch; | |
1998 TemplateParameter *tp = (TemplateParameter *)parameters->data[j]; | |
1999 // BUG: use tp->matchArg() instead of the following | |
2000 TemplateValueParameter *tv = tp->isTemplateValueParameter(); | |
2001 if (!tv) | |
2002 goto Lnomatch; | |
2003 Expression *e = (Expression *)dedtypes->data[j]; | |
2004 if (e) | |
2005 { | |
2006 if (!e1->equals(e)) | |
2007 goto Lnomatch; | |
2008 } | |
2009 else | |
2010 { Type *vt = tv->valType->semantic(0, sc); | |
2011 MATCH m = (MATCH)e1->implicitConvTo(vt); | |
2012 if (!m) | |
2013 goto Lnomatch; | |
2014 dedtypes->data[j] = e1; | |
2015 } | |
2016 } | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2017 else if (s1 && t2 && t2->ty == Tident) |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2018 { |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2019 j = templateParameterLookup(t2, parameters); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2020 if (j == -1) |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2021 goto Lnomatch; |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2022 TemplateParameter *tp = (TemplateParameter *)parameters->data[j]; |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2023 // BUG: use tp->matchArg() instead of the following |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2024 TemplateAliasParameter *ta = tp->isTemplateAliasParameter(); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2025 if (!ta) |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2026 goto Lnomatch; |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2027 Dsymbol *s = (Dsymbol *)dedtypes->data[j]; |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2028 if (s) |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2029 { |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2030 if (!s1->equals(s)) |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2031 goto Lnomatch; |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2032 } |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2033 else |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2034 { |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2035 dedtypes->data[j] = s1; |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2036 } |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2037 } |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2038 else if (s1 && s2) |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2039 { |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2040 if (!s1->equals(s2)) |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2041 goto Lnomatch; |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2042 } |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2043 // BUG: Need to handle tuple parameters |
336 | 2044 else |
2045 goto Lnomatch; | |
2046 } | |
2047 } | |
2048 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
2049 | |
2050 Lnomatch: | |
2051 return MATCHnomatch; | |
2052 } | |
2053 | |
2054 MATCH TypeStruct::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
2055 { | |
2056 //printf("TypeStruct::deduceType()\n"); | |
2057 //printf("\tthis->parent = %s, ", sym->parent->toChars()); print(); | |
2058 //printf("\ttparam = %d, ", tparam->ty); tparam->print(); | |
2059 | |
2060 /* If this struct is a template struct, and we're matching | |
2061 * it against a template instance, convert the struct type | |
2062 * to a template instance, too, and try again. | |
2063 */ | |
2064 TemplateInstance *ti = sym->parent->isTemplateInstance(); | |
2065 | |
2066 if (tparam && tparam->ty == Tinstance) | |
2067 { | |
2068 if (ti && ti->toAlias() == sym) | |
2069 { | |
2070 TypeInstance *t = new TypeInstance(0, ti); | |
2071 return t->deduceType(sc, tparam, parameters, dedtypes); | |
2072 } | |
2073 | |
2074 /* Match things like: | |
2075 * S!(T).foo | |
2076 */ | |
2077 TypeInstance *tpi = (TypeInstance *)tparam; | |
2078 if (tpi->idents.dim) | |
2079 { Identifier *id = (Identifier *)tpi->idents.data[tpi->idents.dim - 1]; | |
2080 if (id->dyncast() == DYNCAST_IDENTIFIER && sym->ident->equals(id)) | |
2081 { | |
2082 Type *tparent = sym->parent->getType(); | |
2083 if (tparent) | |
2084 { | |
2085 /* Slice off the .foo in S!(T).foo | |
2086 */ | |
2087 tpi->idents.dim--; | |
2088 MATCH m = tparent->deduceType(sc, tpi, parameters, dedtypes); | |
2089 tpi->idents.dim++; | |
2090 return m; | |
2091 } | |
2092 } | |
2093 } | |
2094 } | |
2095 | |
2096 // Extra check | |
2097 if (tparam && tparam->ty == Tstruct) | |
2098 { | |
2099 TypeStruct *tp = (TypeStruct *)tparam; | |
2100 | |
2101 if (sym != tp->sym) | |
2102 return MATCHnomatch; | |
2103 } | |
2104 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
2105 } | |
2106 | |
2107 MATCH TypeEnum::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
2108 { | |
2109 // Extra check | |
2110 if (tparam && tparam->ty == Tenum) | |
2111 { | |
2112 TypeEnum *tp = (TypeEnum *)tparam; | |
2113 | |
2114 if (sym != tp->sym) | |
2115 return MATCHnomatch; | |
2116 } | |
2117 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
2118 } | |
2119 | |
2120 MATCH TypeTypedef::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
2121 { | |
2122 // Extra check | |
2123 if (tparam && tparam->ty == Ttypedef) | |
2124 { | |
2125 TypeTypedef *tp = (TypeTypedef *)tparam; | |
2126 | |
2127 if (sym != tp->sym) | |
2128 return MATCHnomatch; | |
2129 } | |
2130 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
2131 } | |
2132 | |
2133 MATCH TypeClass::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
2134 { | |
2135 //printf("TypeClass::deduceType(this = %s)\n", toChars()); | |
2136 | |
2137 /* If this class is a template class, and we're matching | |
2138 * it against a template instance, convert the class type | |
2139 * to a template instance, too, and try again. | |
2140 */ | |
2141 TemplateInstance *ti = sym->parent->isTemplateInstance(); | |
2142 | |
2143 if (tparam && tparam->ty == Tinstance) | |
2144 { | |
2145 if (ti && ti->toAlias() == sym) | |
2146 { | |
2147 TypeInstance *t = new TypeInstance(0, ti); | |
2148 return t->deduceType(sc, tparam, parameters, dedtypes); | |
2149 } | |
2150 | |
2151 /* Match things like: | |
2152 * S!(T).foo | |
2153 */ | |
2154 TypeInstance *tpi = (TypeInstance *)tparam; | |
2155 if (tpi->idents.dim) | |
2156 { Identifier *id = (Identifier *)tpi->idents.data[tpi->idents.dim - 1]; | |
2157 if (id->dyncast() == DYNCAST_IDENTIFIER && sym->ident->equals(id)) | |
2158 { | |
2159 Type *tparent = sym->parent->getType(); | |
2160 if (tparent) | |
2161 { | |
2162 /* Slice off the .foo in S!(T).foo | |
2163 */ | |
2164 tpi->idents.dim--; | |
2165 MATCH m = tparent->deduceType(sc, tpi, parameters, dedtypes); | |
2166 tpi->idents.dim++; | |
2167 return m; | |
2168 } | |
2169 } | |
2170 } | |
2171 } | |
2172 | |
2173 // Extra check | |
2174 if (tparam && tparam->ty == Tclass) | |
2175 { | |
2176 TypeClass *tp = (TypeClass *)tparam; | |
2177 | |
2178 //printf("\t%d\n", (MATCH) implicitConvTo(tp)); | |
2179 return (MATCH) implicitConvTo(tp); | |
2180 } | |
2181 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
2182 } | |
2183 | |
2184 /* ======================== TemplateParameter =============================== */ | |
2185 | |
2186 TemplateParameter::TemplateParameter(Loc loc, Identifier *ident) | |
2187 { | |
2188 this->loc = loc; | |
2189 this->ident = ident; | |
2190 this->sparam = NULL; | |
2191 } | |
2192 | |
2193 TemplateTypeParameter *TemplateParameter::isTemplateTypeParameter() | |
2194 { | |
2195 return NULL; | |
2196 } | |
2197 | |
2198 TemplateValueParameter *TemplateParameter::isTemplateValueParameter() | |
2199 { | |
2200 return NULL; | |
2201 } | |
2202 | |
2203 TemplateAliasParameter *TemplateParameter::isTemplateAliasParameter() | |
2204 { | |
2205 return NULL; | |
2206 } | |
2207 | |
2208 TemplateTupleParameter *TemplateParameter::isTemplateTupleParameter() | |
2209 { | |
2210 return NULL; | |
2211 } | |
2212 | |
2213 #if DMDV2 | |
2214 TemplateThisParameter *TemplateParameter::isTemplateThisParameter() | |
2215 { | |
2216 return NULL; | |
2217 } | |
2218 #endif | |
2219 | |
2220 /* ======================== TemplateTypeParameter =========================== */ | |
2221 | |
2222 // type-parameter | |
2223 | |
2224 TemplateTypeParameter::TemplateTypeParameter(Loc loc, Identifier *ident, Type *specType, | |
2225 Type *defaultType) | |
2226 : TemplateParameter(loc, ident) | |
2227 { | |
2228 this->ident = ident; | |
2229 this->specType = specType; | |
2230 this->defaultType = defaultType; | |
2231 } | |
2232 | |
2233 TemplateTypeParameter *TemplateTypeParameter::isTemplateTypeParameter() | |
2234 { | |
2235 return this; | |
2236 } | |
2237 | |
2238 TemplateParameter *TemplateTypeParameter::syntaxCopy() | |
2239 { | |
2240 TemplateTypeParameter *tp = new TemplateTypeParameter(loc, ident, specType, defaultType); | |
2241 if (tp->specType) | |
2242 tp->specType = specType->syntaxCopy(); | |
2243 if (defaultType) | |
2244 tp->defaultType = defaultType->syntaxCopy(); | |
2245 return tp; | |
2246 } | |
2247 | |
2248 void TemplateTypeParameter::declareParameter(Scope *sc) | |
2249 { | |
2250 //printf("TemplateTypeParameter::declareParameter('%s')\n", ident->toChars()); | |
2251 TypeIdentifier *ti = new TypeIdentifier(loc, ident); | |
2252 sparam = new AliasDeclaration(loc, ident, ti); | |
2253 if (!sc->insert(sparam)) | |
2254 error(loc, "parameter '%s' multiply defined", ident->toChars()); | |
2255 } | |
2256 | |
2257 void TemplateTypeParameter::semantic(Scope *sc) | |
2258 { | |
2259 //printf("TemplateTypeParameter::semantic('%s')\n", ident->toChars()); | |
2260 if (specType) | |
2261 { | |
2262 specType = specType->semantic(loc, sc); | |
2263 } | |
2264 #if 0 // Don't do semantic() until instantiation | |
2265 if (defaultType) | |
2266 { | |
2267 defaultType = defaultType->semantic(loc, sc); | |
2268 } | |
2269 #endif | |
2270 } | |
2271 | |
2272 /**************************************** | |
2273 * Determine if two TemplateParameters are the same | |
2274 * as far as TemplateDeclaration overloading goes. | |
2275 * Returns: | |
2276 * 1 match | |
2277 * 0 no match | |
2278 */ | |
2279 | |
2280 int TemplateTypeParameter::overloadMatch(TemplateParameter *tp) | |
2281 { | |
2282 TemplateTypeParameter *ttp = tp->isTemplateTypeParameter(); | |
2283 | |
2284 if (ttp) | |
2285 { | |
2286 if (specType != ttp->specType) | |
2287 goto Lnomatch; | |
2288 | |
2289 if (specType && !specType->equals(ttp->specType)) | |
2290 goto Lnomatch; | |
2291 | |
2292 return 1; // match | |
2293 } | |
2294 | |
2295 Lnomatch: | |
2296 return 0; | |
2297 } | |
2298 | |
2299 /******************************************* | |
2300 * Match to a particular TemplateParameter. | |
2301 * Input: | |
2302 * i i'th argument | |
2303 * tiargs[] actual arguments to template instance | |
2304 * parameters[] template parameters | |
2305 * dedtypes[] deduced arguments to template instance | |
2306 * *psparam set to symbol declared and initialized to dedtypes[i] | |
2307 */ | |
2308 | |
2309 MATCH TemplateTypeParameter::matchArg(Scope *sc, Objects *tiargs, | |
2310 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
|
2311 Declaration **psparam, int flags) |
336 | 2312 { |
2313 //printf("TemplateTypeParameter::matchArg()\n"); | |
2314 Type *t; | |
2315 Object *oarg; | |
2316 MATCH m = MATCHexact; | |
2317 Type *ta; | |
2318 | |
2319 if (i < tiargs->dim) | |
2320 oarg = (Object *)tiargs->data[i]; | |
2321 else | |
2322 { // Get default argument instead | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2323 oarg = defaultArg(loc, sc); |
336 | 2324 if (!oarg) |
2325 { assert(i < dedtypes->dim); | |
2326 // It might have already been deduced | |
2327 oarg = (Object *)dedtypes->data[i]; | |
2328 if (!oarg) | |
2329 goto Lnomatch; | |
2330 } | |
2331 } | |
2332 | |
2333 ta = isType(oarg); | |
2334 if (!ta) | |
2335 goto Lnomatch; | |
2336 //printf("ta is %s\n", ta->toChars()); | |
2337 | |
2338 t = (Type *)dedtypes->data[i]; | |
2339 | |
2340 if (specType) | |
2341 { | |
2342 //printf("\tcalling deduceType(): ta is %s, specType is %s\n", ta->toChars(), specType->toChars()); | |
2343 MATCH m2 = ta->deduceType(sc, specType, parameters, dedtypes); | |
2344 if (m2 == MATCHnomatch) | |
2345 { //printf("\tfailed deduceType\n"); | |
2346 goto Lnomatch; | |
2347 } | |
2348 | |
2349 if (m2 < m) | |
2350 m = m2; | |
2351 t = (Type *)dedtypes->data[i]; | |
2352 } | |
2353 else | |
2354 { | |
2355 // So that matches with specializations are better | |
2356 m = MATCHconvert; | |
2357 if (t) | |
2358 { // Must match already deduced type | |
2359 | |
2360 m = MATCHexact; | |
2361 if (!t->equals(ta)) | |
2362 { //printf("t = %s ta = %s\n", t->toChars(), ta->toChars()); | |
2363 goto Lnomatch; | |
2364 } | |
2365 } | |
2366 } | |
2367 | |
2368 if (!t) | |
2369 { | |
2370 dedtypes->data[i] = ta; | |
2371 t = ta; | |
2372 } | |
2373 *psparam = new AliasDeclaration(loc, ident, t); | |
2374 //printf("\tm = %d\n", m); | |
2375 return m; | |
2376 | |
2377 Lnomatch: | |
2378 *psparam = NULL; | |
2379 //printf("\tm = %d\n", MATCHnomatch); | |
2380 return MATCHnomatch; | |
2381 } | |
2382 | |
2383 | |
2384 void TemplateTypeParameter::print(Object *oarg, Object *oded) | |
2385 { | |
2386 printf(" %s\n", ident->toChars()); | |
2387 | |
2388 Type *t = isType(oarg); | |
2389 Type *ta = isType(oded); | |
2390 | |
2391 assert(ta); | |
2392 | |
2393 if (specType) | |
2394 printf("\tSpecialization: %s\n", specType->toChars()); | |
2395 if (defaultType) | |
2396 printf("\tDefault: %s\n", defaultType->toChars()); | |
2397 printf("\tArgument: %s\n", t ? t->toChars() : "NULL"); | |
2398 printf("\tDeduced Type: %s\n", ta->toChars()); | |
2399 } | |
2400 | |
2401 | |
2402 void TemplateTypeParameter::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
2403 { | |
2404 buf->writestring(ident->toChars()); | |
2405 if (specType) | |
2406 { | |
2407 buf->writestring(" : "); | |
2408 specType->toCBuffer(buf, NULL, hgs); | |
2409 } | |
2410 if (defaultType) | |
2411 { | |
2412 buf->writestring(" = "); | |
2413 defaultType->toCBuffer(buf, NULL, hgs); | |
2414 } | |
2415 } | |
2416 | |
2417 | |
2418 void *TemplateTypeParameter::dummyArg() | |
2419 { Type *t; | |
2420 | |
2421 if (specType) | |
2422 t = specType; | |
2423 else | |
2424 { // Use this for alias-parameter's too (?) | |
2425 t = new TypeIdentifier(loc, ident); | |
2426 } | |
2427 return (void *)t; | |
2428 } | |
2429 | |
2430 | |
2431 Object *TemplateTypeParameter::specialization() | |
2432 { | |
2433 return specType; | |
2434 } | |
2435 | |
2436 | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2437 Object *TemplateTypeParameter::defaultArg(Loc loc, Scope *sc) |
336 | 2438 { |
2439 Type *t; | |
2440 | |
2441 t = defaultType; | |
2442 if (t) | |
2443 { | |
2444 t = t->syntaxCopy(); | |
2445 t = t->semantic(loc, sc); | |
2446 } | |
2447 return t; | |
2448 } | |
2449 | |
2450 /* ======================== TemplateThisParameter =========================== */ | |
2451 | |
2452 #if DMDV2 | |
2453 // this-parameter | |
2454 | |
2455 TemplateThisParameter::TemplateThisParameter(Loc loc, Identifier *ident, | |
2456 Type *specType, | |
2457 Type *defaultType) | |
2458 : TemplateTypeParameter(loc, ident, specType, defaultType) | |
2459 { | |
2460 } | |
2461 | |
2462 TemplateThisParameter *TemplateThisParameter::isTemplateThisParameter() | |
2463 { | |
2464 return this; | |
2465 } | |
2466 | |
2467 TemplateParameter *TemplateThisParameter::syntaxCopy() | |
2468 { | |
2469 TemplateThisParameter *tp = new TemplateThisParameter(loc, ident, specType, defaultType); | |
2470 if (tp->specType) | |
2471 tp->specType = specType->syntaxCopy(); | |
2472 if (defaultType) | |
2473 tp->defaultType = defaultType->syntaxCopy(); | |
2474 return tp; | |
2475 } | |
2476 | |
2477 void TemplateThisParameter::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
2478 { | |
2479 buf->writestring("this "); | |
2480 TemplateTypeParameter::toCBuffer(buf, hgs); | |
2481 } | |
2482 #endif | |
2483 | |
2484 /* ======================== TemplateAliasParameter ========================== */ | |
2485 | |
2486 // alias-parameter | |
2487 | |
2488 Dsymbol *TemplateAliasParameter::sdummy = NULL; | |
2489 | |
2490 TemplateAliasParameter::TemplateAliasParameter(Loc loc, Identifier *ident, Type *specAliasT, Type *defaultAlias) | |
2491 : TemplateParameter(loc, ident) | |
2492 { | |
2493 this->ident = ident; | |
2494 this->specAliasT = specAliasT; | |
2495 this->defaultAlias = defaultAlias; | |
2496 | |
2497 this->specAlias = NULL; | |
2498 } | |
2499 | |
2500 TemplateAliasParameter *TemplateAliasParameter::isTemplateAliasParameter() | |
2501 { | |
2502 return this; | |
2503 } | |
2504 | |
2505 TemplateParameter *TemplateAliasParameter::syntaxCopy() | |
2506 { | |
2507 TemplateAliasParameter *tp = new TemplateAliasParameter(loc, ident, specAliasT, defaultAlias); | |
2508 if (tp->specAliasT) | |
2509 tp->specAliasT = specAliasT->syntaxCopy(); | |
2510 if (defaultAlias) | |
2511 tp->defaultAlias = defaultAlias->syntaxCopy(); | |
2512 return tp; | |
2513 } | |
2514 | |
2515 void TemplateAliasParameter::declareParameter(Scope *sc) | |
2516 { | |
2517 TypeIdentifier *ti = new TypeIdentifier(loc, ident); | |
2518 sparam = new AliasDeclaration(loc, ident, ti); | |
2519 if (!sc->insert(sparam)) | |
2520 error(loc, "parameter '%s' multiply defined", ident->toChars()); | |
2521 } | |
2522 | |
2523 void TemplateAliasParameter::semantic(Scope *sc) | |
2524 { | |
2525 if (specAliasT) | |
2526 { | |
2527 specAlias = specAliasT->toDsymbol(sc); | |
2528 if (!specAlias) | |
2529 error(loc, "%s is not a symbol", specAliasT->toChars()); | |
2530 } | |
2531 #if 0 // Don't do semantic() until instantiation | |
2532 if (defaultAlias) | |
2533 defaultAlias = defaultAlias->semantic(loc, sc); | |
2534 #endif | |
2535 } | |
2536 | |
2537 int TemplateAliasParameter::overloadMatch(TemplateParameter *tp) | |
2538 { | |
2539 TemplateAliasParameter *tap = tp->isTemplateAliasParameter(); | |
2540 | |
2541 if (tap) | |
2542 { | |
2543 if (specAlias != tap->specAlias) | |
2544 goto Lnomatch; | |
2545 | |
2546 return 1; // match | |
2547 } | |
2548 | |
2549 Lnomatch: | |
2550 return 0; | |
2551 } | |
2552 | |
2553 MATCH TemplateAliasParameter::matchArg(Scope *sc, | |
2554 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
|
2555 Declaration **psparam, int flags) |
336 | 2556 { |
2557 Dsymbol *sa; | |
2558 Object *oarg; | |
2559 Expression *ea; | |
2560 | |
2561 //printf("TemplateAliasParameter::matchArg()\n"); | |
2562 | |
2563 if (i < tiargs->dim) | |
2564 oarg = (Object *)tiargs->data[i]; | |
2565 else | |
2566 { // Get default argument instead | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2567 oarg = defaultArg(loc, sc); |
336 | 2568 if (!oarg) |
2569 { assert(i < dedtypes->dim); | |
2570 // It might have already been deduced | |
2571 oarg = (Object *)dedtypes->data[i]; | |
2572 if (!oarg) | |
2573 goto Lnomatch; | |
2574 } | |
2575 } | |
2576 | |
2577 sa = getDsymbol(oarg); | |
2578 if (!sa) | |
2579 goto Lnomatch; | |
2580 | |
2581 if (specAlias) | |
2582 { | |
2583 if (!sa || sa == sdummy) | |
2584 goto Lnomatch; | |
2585 if (sa != specAlias) | |
2586 goto Lnomatch; | |
2587 } | |
2588 else if (dedtypes->data[i]) | |
2589 { // Must match already deduced symbol | |
2590 Dsymbol *s = (Dsymbol *)dedtypes->data[i]; | |
2591 | |
2592 if (!sa || s != sa) | |
2593 goto Lnomatch; | |
2594 } | |
2595 dedtypes->data[i] = sa; | |
2596 | |
2597 *psparam = new AliasDeclaration(loc, ident, sa); | |
2598 return MATCHexact; | |
2599 | |
2600 Lnomatch: | |
2601 *psparam = NULL; | |
2602 return MATCHnomatch; | |
2603 } | |
2604 | |
2605 | |
2606 void TemplateAliasParameter::print(Object *oarg, Object *oded) | |
2607 { | |
2608 printf(" %s\n", ident->toChars()); | |
2609 | |
2610 Dsymbol *sa = isDsymbol(oded); | |
2611 assert(sa); | |
2612 | |
2613 printf("\tArgument alias: %s\n", sa->toChars()); | |
2614 } | |
2615 | |
2616 void TemplateAliasParameter::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
2617 { | |
2618 buf->writestring("alias "); | |
2619 buf->writestring(ident->toChars()); | |
2620 if (specAliasT) | |
2621 { | |
2622 buf->writestring(" : "); | |
2623 specAliasT->toCBuffer(buf, NULL, hgs); | |
2624 } | |
2625 if (defaultAlias) | |
2626 { | |
2627 buf->writestring(" = "); | |
2628 defaultAlias->toCBuffer(buf, NULL, hgs); | |
2629 } | |
2630 } | |
2631 | |
2632 | |
2633 void *TemplateAliasParameter::dummyArg() | |
2634 { Dsymbol *s; | |
2635 | |
2636 s = specAlias; | |
2637 if (!s) | |
2638 { | |
2639 if (!sdummy) | |
2640 sdummy = new Dsymbol(); | |
2641 s = sdummy; | |
2642 } | |
2643 return (void*)s; | |
2644 } | |
2645 | |
2646 | |
2647 Object *TemplateAliasParameter::specialization() | |
2648 { | |
2649 return specAliasT; | |
2650 } | |
2651 | |
2652 | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2653 Object *TemplateAliasParameter::defaultArg(Loc loc, Scope *sc) |
336 | 2654 { |
2655 Dsymbol *s = NULL; | |
2656 | |
2657 if (defaultAlias) | |
2658 { | |
2659 s = defaultAlias->toDsymbol(sc); | |
2660 if (!s) | |
2661 error("%s is not a symbol", defaultAlias->toChars()); | |
2662 } | |
2663 return s; | |
2664 } | |
2665 | |
2666 /* ======================== TemplateValueParameter ========================== */ | |
2667 | |
2668 // value-parameter | |
2669 | |
2670 Expression *TemplateValueParameter::edummy = NULL; | |
2671 | |
2672 TemplateValueParameter::TemplateValueParameter(Loc loc, Identifier *ident, Type *valType, | |
2673 Expression *specValue, Expression *defaultValue) | |
2674 : TemplateParameter(loc, ident) | |
2675 { | |
2676 this->ident = ident; | |
2677 this->valType = valType; | |
2678 this->specValue = specValue; | |
2679 this->defaultValue = defaultValue; | |
2680 } | |
2681 | |
2682 TemplateValueParameter *TemplateValueParameter::isTemplateValueParameter() | |
2683 { | |
2684 return this; | |
2685 } | |
2686 | |
2687 TemplateParameter *TemplateValueParameter::syntaxCopy() | |
2688 { | |
2689 TemplateValueParameter *tp = | |
2690 new TemplateValueParameter(loc, ident, valType, specValue, defaultValue); | |
2691 tp->valType = valType->syntaxCopy(); | |
2692 if (specValue) | |
2693 tp->specValue = specValue->syntaxCopy(); | |
2694 if (defaultValue) | |
2695 tp->defaultValue = defaultValue->syntaxCopy(); | |
2696 return tp; | |
2697 } | |
2698 | |
2699 void TemplateValueParameter::declareParameter(Scope *sc) | |
2700 { | |
2701 VarDeclaration *v = new VarDeclaration(loc, valType, ident, NULL); | |
2702 v->storage_class = STCtemplateparameter; | |
2703 if (!sc->insert(v)) | |
2704 error(loc, "parameter '%s' multiply defined", ident->toChars()); | |
2705 sparam = v; | |
2706 } | |
2707 | |
2708 void TemplateValueParameter::semantic(Scope *sc) | |
2709 { | |
2710 sparam->semantic(sc); | |
2711 valType = valType->semantic(loc, sc); | |
2712 if (!(valType->isintegral() || valType->isfloating() || valType->isString()) && | |
2713 valType->ty != Tident) | |
2714 error(loc, "arithmetic/string type expected for value-parameter, not %s", valType->toChars()); | |
2715 | |
2716 if (specValue) | |
2717 { Expression *e = specValue; | |
2718 | |
2719 e = e->semantic(sc); | |
2720 e = e->implicitCastTo(sc, valType); | |
2721 e = e->optimize(WANTvalue | WANTinterpret); | |
2722 if (e->op == TOKint64 || e->op == TOKfloat64 || | |
2723 e->op == TOKcomplex80 || e->op == TOKnull || e->op == TOKstring) | |
2724 specValue = e; | |
2725 //e->toInteger(); | |
2726 } | |
2727 | |
2728 #if 0 // defer semantic analysis to arg match | |
2729 if (defaultValue) | |
2730 { Expression *e = defaultValue; | |
2731 | |
2732 e = e->semantic(sc); | |
2733 e = e->implicitCastTo(sc, valType); | |
2734 e = e->optimize(WANTvalue | WANTinterpret); | |
2735 if (e->op == TOKint64) | |
2736 defaultValue = e; | |
2737 //e->toInteger(); | |
2738 } | |
2739 #endif | |
2740 } | |
2741 | |
2742 int TemplateValueParameter::overloadMatch(TemplateParameter *tp) | |
2743 { | |
2744 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
2745 | |
2746 if (tvp) | |
2747 { | |
2748 if (valType != tvp->valType) | |
2749 goto Lnomatch; | |
2750 | |
2751 if (valType && !valType->equals(tvp->valType)) | |
2752 goto Lnomatch; | |
2753 | |
2754 if (specValue != tvp->specValue) | |
2755 goto Lnomatch; | |
2756 | |
2757 return 1; // match | |
2758 } | |
2759 | |
2760 Lnomatch: | |
2761 return 0; | |
2762 } | |
2763 | |
2764 | |
2765 MATCH TemplateValueParameter::matchArg(Scope *sc, | |
2766 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
|
2767 Declaration **psparam, int flags) |
336 | 2768 { |
2769 //printf("TemplateValueParameter::matchArg()\n"); | |
2770 | |
2771 Initializer *init; | |
2772 Declaration *sparam; | |
2773 MATCH m = MATCHexact; | |
2774 Expression *ei; | |
2775 Object *oarg; | |
2776 | |
2777 if (i < tiargs->dim) | |
2778 oarg = (Object *)tiargs->data[i]; | |
2779 else | |
2780 { // Get default argument instead | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2781 oarg = defaultArg(loc, sc); |
336 | 2782 if (!oarg) |
2783 { assert(i < dedtypes->dim); | |
2784 // It might have already been deduced | |
2785 oarg = (Object *)dedtypes->data[i]; | |
2786 if (!oarg) | |
2787 goto Lnomatch; | |
2788 } | |
2789 } | |
2790 | |
2791 ei = isExpression(oarg); | |
2792 Type *vt; | |
2793 | |
2794 if (!ei && oarg) | |
2795 goto Lnomatch; | |
2796 | |
2797 if (specValue) | |
2798 { | |
2799 if (!ei || ei == edummy) | |
2800 goto Lnomatch; | |
2801 | |
2802 Expression *e = specValue; | |
2803 | |
2804 e = e->semantic(sc); | |
2805 e = e->implicitCastTo(sc, valType); | |
2806 e = e->optimize(WANTvalue | WANTinterpret); | |
2807 | |
2808 ei = ei->syntaxCopy(); | |
2809 ei = ei->semantic(sc); | |
2810 ei = ei->optimize(WANTvalue | WANTinterpret); | |
2811 //printf("ei: %s, %s\n", ei->toChars(), ei->type->toChars()); | |
2812 //printf("e : %s, %s\n", e->toChars(), e->type->toChars()); | |
2813 if (!ei->equals(e)) | |
2814 goto Lnomatch; | |
2815 } | |
2816 else if (dedtypes->data[i]) | |
2817 { // Must match already deduced value | |
2818 Expression *e = (Expression *)dedtypes->data[i]; | |
2819 | |
2820 if (!ei || !ei->equals(e)) | |
2821 goto Lnomatch; | |
2822 } | |
2823 Lmatch: | |
2824 //printf("valType: %s, ty = %d\n", valType->toChars(), valType->ty); | |
2825 vt = valType->semantic(0, sc); | |
2826 //printf("ei: %s, %s\n", ei->toChars(), ei->type->toChars()); | |
2827 if (ei->type) | |
2828 { | |
2829 m = (MATCH)ei->implicitConvTo(vt); | |
2830 //printf("m: %d\n", m); | |
2831 if (!m) | |
2832 goto Lnomatch; | |
2833 } | |
2834 dedtypes->data[i] = ei; | |
2835 | |
2836 init = new ExpInitializer(loc, ei); | |
2837 sparam = new VarDeclaration(loc, vt, ident, init); | |
2838 sparam->storage_class = STCconst; | |
2839 *psparam = sparam; | |
2840 return m; | |
2841 | |
2842 Lnomatch: | |
2843 //printf("\tno match\n"); | |
2844 *psparam = NULL; | |
2845 return MATCHnomatch; | |
2846 } | |
2847 | |
2848 | |
2849 void TemplateValueParameter::print(Object *oarg, Object *oded) | |
2850 { | |
2851 printf(" %s\n", ident->toChars()); | |
2852 | |
2853 Expression *ea = isExpression(oded); | |
2854 | |
2855 if (specValue) | |
2856 printf("\tSpecialization: %s\n", specValue->toChars()); | |
2857 printf("\tArgument Value: %s\n", ea ? ea->toChars() : "NULL"); | |
2858 } | |
2859 | |
2860 | |
2861 void TemplateValueParameter::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
2862 { | |
2863 valType->toCBuffer(buf, ident, hgs); | |
2864 if (specValue) | |
2865 { | |
2866 buf->writestring(" : "); | |
2867 specValue->toCBuffer(buf, hgs); | |
2868 } | |
2869 if (defaultValue) | |
2870 { | |
2871 buf->writestring(" = "); | |
2872 defaultValue->toCBuffer(buf, hgs); | |
2873 } | |
2874 } | |
2875 | |
2876 | |
2877 void *TemplateValueParameter::dummyArg() | |
2878 { Expression *e; | |
2879 | |
2880 e = specValue; | |
2881 if (!e) | |
2882 { | |
2883 // Create a dummy value | |
2884 if (!edummy) | |
2885 edummy = valType->defaultInit(); | |
2886 e = edummy; | |
2887 } | |
2888 return (void *)e; | |
2889 } | |
2890 | |
2891 | |
2892 Object *TemplateValueParameter::specialization() | |
2893 { | |
2894 return specValue; | |
2895 } | |
2896 | |
2897 | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2898 Object *TemplateValueParameter::defaultArg(Loc loc, Scope *sc) |
336 | 2899 { |
2900 Expression *e = defaultValue; | |
2901 if (e) | |
2902 { | |
2903 e = e->syntaxCopy(); | |
2904 e = e->semantic(sc); | |
2905 #if DMDV2 | |
2906 if (e->op == TOKdefault) | |
2907 { DefaultInitExp *de = (DefaultInitExp *)e; | |
2908 e = de->resolve(loc, sc); | |
2909 } | |
2910 #endif | |
2911 } | |
2912 return e; | |
2913 } | |
2914 | |
2915 /* ======================== TemplateTupleParameter ========================== */ | |
2916 | |
2917 // variadic-parameter | |
2918 | |
2919 TemplateTupleParameter::TemplateTupleParameter(Loc loc, Identifier *ident) | |
2920 : TemplateParameter(loc, ident) | |
2921 { | |
2922 this->ident = ident; | |
2923 } | |
2924 | |
2925 TemplateTupleParameter *TemplateTupleParameter::isTemplateTupleParameter() | |
2926 { | |
2927 return this; | |
2928 } | |
2929 | |
2930 TemplateParameter *TemplateTupleParameter::syntaxCopy() | |
2931 { | |
2932 TemplateTupleParameter *tp = new TemplateTupleParameter(loc, ident); | |
2933 return tp; | |
2934 } | |
2935 | |
2936 void TemplateTupleParameter::declareParameter(Scope *sc) | |
2937 { | |
2938 TypeIdentifier *ti = new TypeIdentifier(loc, ident); | |
2939 sparam = new AliasDeclaration(loc, ident, ti); | |
2940 if (!sc->insert(sparam)) | |
2941 error(loc, "parameter '%s' multiply defined", ident->toChars()); | |
2942 } | |
2943 | |
2944 void TemplateTupleParameter::semantic(Scope *sc) | |
2945 { | |
2946 } | |
2947 | |
2948 int TemplateTupleParameter::overloadMatch(TemplateParameter *tp) | |
2949 { | |
2950 TemplateTupleParameter *tvp = tp->isTemplateTupleParameter(); | |
2951 | |
2952 if (tvp) | |
2953 { | |
2954 return 1; // match | |
2955 } | |
2956 | |
2957 Lnomatch: | |
2958 return 0; | |
2959 } | |
2960 | |
2961 MATCH TemplateTupleParameter::matchArg(Scope *sc, | |
2962 Objects *tiargs, int i, TemplateParameters *parameters, | |
2963 Objects *dedtypes, | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2964 Declaration **psparam, int flags) |
336 | 2965 { |
2966 //printf("TemplateTupleParameter::matchArg()\n"); | |
2967 | |
2968 /* The rest of the actual arguments (tiargs[]) form the match | |
2969 * for the variadic parameter. | |
2970 */ | |
2971 assert(i + 1 == dedtypes->dim); // must be the last one | |
2972 Tuple *ovar; | |
2973 if (i + 1 == tiargs->dim && isTuple((Object *)tiargs->data[i])) | |
2974 ovar = isTuple((Object *)tiargs->data[i]); | |
2975 else | |
2976 { | |
2977 ovar = new Tuple(); | |
2978 //printf("ovar = %p\n", ovar); | |
2979 if (i < tiargs->dim) | |
2980 { | |
2981 //printf("i = %d, tiargs->dim = %d\n", i, tiargs->dim); | |
2982 ovar->objects.setDim(tiargs->dim - i); | |
2983 for (size_t j = 0; j < ovar->objects.dim; j++) | |
2984 ovar->objects.data[j] = tiargs->data[i + j]; | |
2985 } | |
2986 } | |
2987 *psparam = new TupleDeclaration(loc, ident, &ovar->objects); | |
2988 dedtypes->data[i] = (void *)ovar; | |
2989 return MATCHexact; | |
2990 } | |
2991 | |
2992 | |
2993 void TemplateTupleParameter::print(Object *oarg, Object *oded) | |
2994 { | |
2995 printf(" %s... [", ident->toChars()); | |
2996 Tuple *v = isTuple(oded); | |
2997 assert(v); | |
2998 | |
2999 //printf("|%d| ", v->objects.dim); | |
3000 for (int i = 0; i < v->objects.dim; i++) | |
3001 { | |
3002 if (i) | |
3003 printf(", "); | |
3004 | |
3005 Object *o = (Object *)v->objects.data[i]; | |
3006 | |
3007 Dsymbol *sa = isDsymbol(o); | |
3008 if (sa) | |
3009 printf("alias: %s", sa->toChars()); | |
3010 | |
3011 Type *ta = isType(o); | |
3012 if (ta) | |
3013 printf("type: %s", ta->toChars()); | |
3014 | |
3015 Expression *ea = isExpression(o); | |
3016 if (ea) | |
3017 printf("exp: %s", ea->toChars()); | |
3018 | |
3019 assert(!isTuple(o)); // no nested Tuple arguments | |
3020 } | |
3021 | |
3022 printf("]\n"); | |
3023 } | |
3024 | |
3025 void TemplateTupleParameter::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
3026 { | |
3027 buf->writestring(ident->toChars()); | |
3028 buf->writestring("..."); | |
3029 } | |
3030 | |
3031 | |
3032 void *TemplateTupleParameter::dummyArg() | |
3033 { | |
3034 return NULL; | |
3035 } | |
3036 | |
3037 | |
3038 Object *TemplateTupleParameter::specialization() | |
3039 { | |
3040 return NULL; | |
3041 } | |
3042 | |
3043 | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3044 Object *TemplateTupleParameter::defaultArg(Loc loc, Scope *sc) |
336 | 3045 { |
3046 return NULL; | |
3047 } | |
3048 | |
3049 /* ======================== TemplateInstance ================================ */ | |
3050 | |
3051 TemplateInstance::TemplateInstance(Loc loc, Identifier *ident) | |
3052 : ScopeDsymbol(NULL) | |
3053 { | |
3054 #if LOG | |
3055 printf("TemplateInstance(this = %p, ident = '%s')\n", this, ident ? ident->toChars() : "null"); | |
3056 #endif | |
3057 this->loc = loc; | |
3058 this->name = ident; | |
3059 this->tiargs = NULL; | |
3060 this->tempdecl = NULL; | |
3061 this->inst = NULL; | |
3062 this->argsym = NULL; | |
3063 this->aliasdecl = NULL; | |
3064 this->semanticdone = 0; | |
3065 this->semantictiargsdone = 0; | |
3066 this->withsym = NULL; | |
3067 this->nest = 0; | |
3068 this->havetempdecl = 0; | |
3069 this->isnested = NULL; | |
3070 this->errors = 0; | |
948
780530d1cad3
Revert templates to old behavior.
Christian Kamm <kamm incasoftware de>
parents:
946
diff
changeset
|
3071 |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
3072 #if IN_LLVM |
948
780530d1cad3
Revert templates to old behavior.
Christian Kamm <kamm incasoftware de>
parents:
946
diff
changeset
|
3073 // LDC |
1067
7ce8355fbcc6
Improved template emission control for singleobj building.
Christian Kamm <kamm incasoftware de>
parents:
948
diff
changeset
|
3074 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
|
3075 this->tinst = NULL; |
948
780530d1cad3
Revert templates to old behavior.
Christian Kamm <kamm incasoftware de>
parents:
946
diff
changeset
|
3076 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
|
3077 #endif |
336 | 3078 } |
3079 | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3080 /***************** |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3081 * 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
|
3082 * template to instantiate. |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3083 */ |
336 | 3084 |
3085 TemplateInstance::TemplateInstance(Loc loc, TemplateDeclaration *td, Objects *tiargs) | |
3086 : ScopeDsymbol(NULL) | |
3087 { | |
3088 #if LOG | |
3089 printf("TemplateInstance(this = %p, tempdecl = '%s')\n", this, td->toChars()); | |
3090 #endif | |
3091 this->loc = loc; | |
3092 this->name = td->ident; | |
3093 this->tiargs = tiargs; | |
3094 this->tempdecl = td; | |
3095 this->inst = NULL; | |
3096 this->argsym = NULL; | |
3097 this->aliasdecl = NULL; | |
3098 this->semanticdone = 0; | |
3099 this->semantictiargsdone = 1; | |
3100 this->withsym = NULL; | |
3101 this->nest = 0; | |
3102 this->havetempdecl = 1; | |
3103 this->isnested = NULL; | |
3104 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
|
3105 |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
3106 #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
|
3107 // LDC |
561
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
3108 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
|
3109 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
|
3110 #endif |
336 | 3111 |
3112 assert((size_t)tempdecl->scope > 0x10000); | |
3113 } | |
3114 | |
3115 | |
3116 Objects *TemplateInstance::arraySyntaxCopy(Objects *objs) | |
3117 { | |
3118 Objects *a = NULL; | |
3119 if (objs) | |
3120 { a = new Objects(); | |
3121 a->setDim(objs->dim); | |
3122 for (size_t i = 0; i < objs->dim; i++) | |
3123 { | |
3124 Type *ta = isType((Object *)objs->data[i]); | |
3125 if (ta) | |
3126 a->data[i] = ta->syntaxCopy(); | |
3127 else | |
3128 { | |
3129 Expression *ea = isExpression((Object *)objs->data[i]); | |
3130 assert(ea); | |
3131 a->data[i] = ea->syntaxCopy(); | |
3132 } | |
3133 } | |
3134 } | |
3135 return a; | |
3136 } | |
3137 | |
3138 Dsymbol *TemplateInstance::syntaxCopy(Dsymbol *s) | |
3139 { | |
3140 TemplateInstance *ti; | |
3141 | |
3142 if (s) | |
3143 ti = (TemplateInstance *)s; | |
3144 else | |
3145 ti = new TemplateInstance(loc, name); | |
3146 | |
3147 ti->tiargs = arraySyntaxCopy(tiargs); | |
3148 | |
3149 ScopeDsymbol::syntaxCopy(ti); | |
3150 return ti; | |
3151 } | |
3152 | |
3153 | |
3154 void TemplateInstance::semantic(Scope *sc) | |
3155 { | |
3156 if (global.errors) | |
3157 { | |
3158 if (!global.gag) | |
3159 { | |
3160 /* Trying to soldier on rarely generates useful messages | |
3161 * at this point. | |
3162 */ | |
3163 fatal(); | |
3164 } | |
3165 return; | |
3166 } | |
3167 #if LOG | |
3168 printf("\n+TemplateInstance::semantic('%s', this=%p)\n", toChars(), this); | |
3169 #endif | |
3170 if (inst) // if semantic() was already run | |
3171 { | |
3172 #if LOG | |
3173 printf("-TemplateInstance::semantic('%s', this=%p) already run\n", inst->toChars(), inst); | |
3174 #endif | |
3175 return; | |
3176 } | |
3177 | |
3178 if (semanticdone != 0) | |
3179 { | |
3180 error(loc, "recursive template expansion"); | |
3181 // inst = this; | |
3182 return; | |
3183 } | |
3184 semanticdone = 1; | |
3185 | |
561
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
3186 // 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
|
3187 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
|
3188 |
1714836f2c0b
Mostly rewrite debug info generation in terms of llvm/Analysis/DebugInfo.h.
Christian Kamm <kamm incasoftware de>
parents:
940
diff
changeset
|
3189 // 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
|
3190 if (tinst) |
1714836f2c0b
Mostly rewrite debug info generation in terms of llvm/Analysis/DebugInfo.h.
Christian Kamm <kamm incasoftware de>
parents:
940
diff
changeset
|
3191 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
|
3192 else |
1714836f2c0b
Mostly rewrite debug info generation in terms of llvm/Analysis/DebugInfo.h.
Christian Kamm <kamm incasoftware de>
parents:
940
diff
changeset
|
3193 tmodule = sc->module; |
948
780530d1cad3
Revert templates to old behavior.
Christian Kamm <kamm incasoftware de>
parents:
946
diff
changeset
|
3194 //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
|
3195 |
336 | 3196 #if LOG |
3197 printf("\tdo semantic\n"); | |
3198 #endif | |
3199 if (havetempdecl) | |
3200 { | |
3201 assert((size_t)tempdecl->scope > 0x10000); | |
3202 // Deduce tdtypes | |
3203 tdtypes.setDim(tempdecl->parameters->dim); | |
3204 if (!tempdecl->matchWithInstance(this, &tdtypes, 0)) | |
3205 { | |
3206 error("incompatible arguments for template instantiation"); | |
3207 inst = this; | |
3208 return; | |
3209 } | |
3210 } | |
3211 else | |
3212 { | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3213 /* 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
|
3214 * (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
|
3215 */ |
336 | 3216 semanticTiargs(sc); |
3217 | |
3218 tempdecl = findTemplateDeclaration(sc); | |
3219 if (tempdecl) | |
3220 tempdecl = findBestMatch(sc); | |
3221 if (!tempdecl || global.errors) | |
3222 { inst = this; | |
3223 //printf("error return %p, %d\n", tempdecl, global.errors); | |
3224 return; // error recovery | |
3225 } | |
3226 } | |
3227 | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3228 hasNestedArgs(tiargs); |
336 | 3229 |
3230 /* See if there is an existing TemplateInstantiation that already | |
3231 * implements the typeargs. If so, just refer to that one instead. | |
3232 */ | |
3233 | |
3234 for (size_t i = 0; i < tempdecl->instances.dim; i++) | |
3235 { | |
3236 TemplateInstance *ti = (TemplateInstance *)tempdecl->instances.data[i]; | |
3237 #if LOG | |
3238 printf("\t%s: checking for match with instance %d (%p): '%s'\n", toChars(), i, ti, ti->toChars()); | |
3239 #endif | |
3240 assert(tdtypes.dim == ti->tdtypes.dim); | |
3241 | |
3242 // Nesting must match | |
3243 if (isnested != ti->isnested) | |
3244 continue; | |
3245 #if 0 | |
3246 if (isnested && sc->parent != ti->parent) | |
3247 continue; | |
3248 #endif | |
3249 for (size_t j = 0; j < tdtypes.dim; j++) | |
3250 { Object *o1 = (Object *)tdtypes.data[j]; | |
3251 Object *o2 = (Object *)ti->tdtypes.data[j]; | |
3252 if (!match(o1, o2, tempdecl, sc)) | |
3253 goto L1; | |
3254 } | |
3255 | |
3256 // It's a match | |
3257 inst = ti; | |
3258 parent = ti->parent; | |
3259 #if LOG | |
3260 printf("\tit's a match with instance %p\n", inst); | |
3261 #endif | |
3262 return; | |
3263 | |
3264 L1: | |
3265 ; | |
3266 } | |
3267 | |
3268 /* So, we need to implement 'this' instance. | |
3269 */ | |
3270 #if LOG | |
3271 printf("\timplement template instance '%s'\n", toChars()); | |
3272 #endif | |
3273 unsigned errorsave = global.errors; | |
3274 inst = this; | |
3275 int tempdecl_instance_idx = tempdecl->instances.dim; | |
3276 tempdecl->instances.push(this); | |
3277 parent = tempdecl->parent; | |
3278 //printf("parent = '%s'\n", parent->kind()); | |
3279 | |
3280 ident = genIdent(); // need an identifier for name mangling purposes. | |
3281 | |
3282 #if 1 | |
3283 if (isnested) | |
3284 parent = isnested; | |
3285 #endif | |
3286 //printf("parent = '%s'\n", parent->kind()); | |
3287 | |
3288 // Add 'this' to the enclosing scope's members[] so the semantic routines | |
3289 // will get called on the instance members | |
3290 #if 1 | |
3291 int dosemantic3 = 0; | |
3292 { Array *a; | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3293 |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3294 Scope *scx = sc; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3295 #if 0 |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3296 for (scx = sc; scx; scx = scx->enclosing) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3297 if (scx->scopesym) |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3298 break; |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3299 #endif |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3300 |
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3301 //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
|
3302 if (scx && scx->scopesym && |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3303 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
|
3304 #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
|
3305 /* 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
|
3306 * 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
|
3307 * 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
|
3308 * |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3309 * see bugzilla 2500. |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3310 */ |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3311 && !scx->module->selfImports() |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3312 #endif |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3313 ) |
336 | 3314 { |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3315 //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
|
3316 a = scx->scopesym->members; |
336 | 3317 } |
3318 else | |
3319 { Module *m = sc->module->importedFrom; | |
3320 //printf("\t2: adding to module %s instead of module %s\n", m->toChars(), sc->module->toChars()); | |
3321 a = m->members; | |
3322 if (m->semanticdone >= 3) | |
3323 dosemantic3 = 1; | |
3324 } | |
3325 for (int i = 0; 1; i++) | |
3326 { | |
3327 if (i == a->dim) | |
3328 { | |
3329 a->push(this); | |
3330 break; | |
3331 } | |
3332 if (this == (Dsymbol *)a->data[i]) // if already in Array | |
3333 break; | |
3334 } | |
3335 } | |
3336 #endif | |
3337 | |
3338 // Copy the syntax trees from the TemplateDeclaration | |
3339 members = Dsymbol::arraySyntaxCopy(tempdecl->members); | |
3340 | |
3341 // Create our own scope for the template parameters | |
3342 Scope *scope = tempdecl->scope; | |
3343 if (!scope) | |
3344 { | |
3345 error("forward reference to template declaration %s\n", tempdecl->toChars()); | |
3346 return; | |
3347 } | |
3348 | |
3349 #if LOG | |
3350 printf("\tcreate scope for template parameters '%s'\n", toChars()); | |
3351 #endif | |
3352 argsym = new ScopeDsymbol(); | |
3353 argsym->parent = scope->parent; | |
3354 scope = scope->push(argsym); | |
3355 | |
3356 // 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
|
3357 Scope *paramscope = scope->push(); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3358 paramscope->stc = 0; |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3359 declareParameters(paramscope); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3360 paramscope->pop(); |
336 | 3361 |
3362 // Add members of template instance to template instance symbol table | |
3363 // parent = scope->scopesym; | |
3364 symtab = new DsymbolTable(); | |
3365 int memnum = 0; | |
3366 for (int i = 0; i < members->dim; i++) | |
3367 { | |
3368 Dsymbol *s = (Dsymbol *)members->data[i]; | |
3369 #if LOG | |
3370 printf("\t[%d] adding member '%s' %p kind %s to '%s', memnum = %d\n", i, s->toChars(), s, s->kind(), this->toChars(), memnum); | |
3371 #endif | |
3372 memnum |= s->addMember(scope, this, memnum); | |
3373 } | |
3374 #if LOG | |
3375 printf("adding members done\n"); | |
3376 #endif | |
3377 | |
3378 /* See if there is only one member of template instance, and that | |
3379 * member has the same name as the template instance. | |
3380 * If so, this template instance becomes an alias for that member. | |
3381 */ | |
3382 //printf("members->dim = %d\n", members->dim); | |
3383 if (members->dim) | |
3384 { | |
3385 Dsymbol *s; | |
3386 if (Dsymbol::oneMembers(members, &s) && s) | |
3387 { | |
3388 //printf("s->kind = '%s'\n", s->kind()); | |
3389 //s->print(); | |
3390 //printf("'%s', '%s'\n", s->ident->toChars(), tempdecl->ident->toChars()); | |
3391 if (s->ident && s->ident->equals(tempdecl->ident)) | |
3392 { | |
3393 //printf("setting aliasdecl\n"); | |
3394 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
|
3395 |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
3396 #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
|
3397 // 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
|
3398 if (tempdecl->llvmInternal) { |
d33b0d4b816a
Make sure instantiations of template intrinsics are marked as intrinsics.
Frits van Bommel <fvbommel wxs.nl>
parents:
1067
diff
changeset
|
3399 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
|
3400 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
|
3401 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
|
3402 } |
d33b0d4b816a
Make sure instantiations of template intrinsics are marked as intrinsics.
Frits van Bommel <fvbommel wxs.nl>
parents:
1067
diff
changeset
|
3403 } |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
3404 #endif |
336 | 3405 } |
3406 } | |
3407 } | |
3408 | |
3409 // Do semantic() analysis on template instance members | |
3410 #if LOG | |
3411 printf("\tdo semantic() on template instance members '%s'\n", toChars()); | |
3412 #endif | |
3413 Scope *sc2; | |
3414 sc2 = scope->push(this); | |
3415 //printf("isnested = %d, sc->parent = %s\n", isnested, sc->parent->toChars()); | |
3416 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
|
3417 sc2->tinst = this; |
336 | 3418 |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3419 #if WINDOWS_SEH |
336 | 3420 __try |
3421 { | |
3422 #endif | |
3423 for (int i = 0; i < members->dim; i++) | |
3424 { | |
3425 Dsymbol *s = (Dsymbol *)members->data[i]; | |
3426 //printf("\t[%d] semantic on '%s' %p kind %s in '%s'\n", i, s->toChars(), s, s->kind(), this->toChars()); | |
3427 //printf("test: isnested = %d, sc2->parent = %s\n", isnested, sc2->parent->toChars()); | |
3428 // if (isnested) | |
3429 // s->parent = sc->parent; | |
3430 //printf("test3: isnested = %d, s->parent = %s\n", isnested, s->parent->toChars()); | |
3431 s->semantic(sc2); | |
3432 //printf("test4: isnested = %d, s->parent = %s\n", isnested, s->parent->toChars()); | |
3433 sc2->module->runDeferredSemantic(); | |
3434 } | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3435 #if WINDOWS_SEH |
336 | 3436 } |
3437 __except (__ehfilter(GetExceptionInformation())) | |
3438 { | |
3439 global.gag = 0; // ensure error message gets printed | |
3440 error("recursive expansion"); | |
3441 fatal(); | |
3442 } | |
3443 #endif | |
3444 | |
3445 /* If any of the instantiation members didn't get semantic() run | |
3446 * on them due to forward references, we cannot run semantic2() | |
3447 * or semantic3() yet. | |
3448 */ | |
3449 for (size_t i = 0; i < Module::deferred.dim; i++) | |
3450 { Dsymbol *sd = (Dsymbol *)Module::deferred.data[i]; | |
3451 | |
3452 if (sd->parent == this) | |
3453 goto Laftersemantic; | |
3454 } | |
3455 | |
3456 /* The problem is when to parse the initializer for a variable. | |
3457 * Perhaps VarDeclaration::semantic() should do it like it does | |
3458 * for initializers inside a function. | |
3459 */ | |
3460 // if (sc->parent->isFuncDeclaration()) | |
3461 | |
3462 /* BUG 782: this has problems if the classes this depends on | |
3463 * are forward referenced. Find a way to defer semantic() | |
3464 * on this template. | |
3465 */ | |
3466 semantic2(sc2); | |
3467 | |
3468 if (sc->func || dosemantic3) | |
3469 { | |
3470 semantic3(sc2); | |
3471 } | |
3472 | |
3473 Laftersemantic: | |
3474 sc2->pop(); | |
3475 | |
3476 scope->pop(); | |
3477 | |
3478 // Give additional context info if error occurred during instantiation | |
3479 if (global.errors != errorsave) | |
3480 { | |
3481 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
|
3482 if(tinst) |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
3483 tinst->printInstantiationTrace(); |
336 | 3484 errors = 1; |
3485 if (global.gag) | |
3486 tempdecl->instances.remove(tempdecl_instance_idx); | |
3487 } | |
3488 | |
3489 #if LOG | |
3490 printf("-TemplateInstance::semantic('%s', this=%p)\n", toChars(), this); | |
3491 #endif | |
3492 } | |
3493 | |
3494 | |
3495 void TemplateInstance::semanticTiargs(Scope *sc) | |
3496 { | |
3497 //printf("+TemplateInstance::semanticTiargs() %s\n", toChars()); | |
3498 if (semantictiargsdone) | |
3499 return; | |
3500 semantictiargsdone = 1; | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3501 semanticTiargs(loc, sc, tiargs, 0); |
336 | 3502 } |
3503 | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3504 /********************************** |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3505 * Input: |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3506 * flags 1: replace const variables with their initializers |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3507 */ |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3508 |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3509 void TemplateInstance::semanticTiargs(Loc loc, Scope *sc, Objects *tiargs, int flags) |
336 | 3510 { |
3511 // Run semantic on each argument, place results in tiargs[] | |
3512 //printf("+TemplateInstance::semanticTiargs() %s\n", toChars()); | |
3513 if (!tiargs) | |
3514 return; | |
3515 for (size_t j = 0; j < tiargs->dim; j++) | |
3516 { | |
3517 Object *o = (Object *)tiargs->data[j]; | |
3518 Type *ta = isType(o); | |
3519 Expression *ea = isExpression(o); | |
3520 Dsymbol *sa = isDsymbol(o); | |
3521 | |
3522 //printf("1: tiargs->data[%d] = %p, %p, %p, ea=%p, ta=%p\n", j, o, isDsymbol(o), isTuple(o), ea, ta); | |
3523 if (ta) | |
3524 { | |
3525 //printf("type %s\n", ta->toChars()); | |
3526 // It might really be an Expression or an Alias | |
3527 ta->resolve(loc, sc, &ea, &ta, &sa); | |
3528 if (ea) | |
3529 { | |
3530 ea = ea->semantic(sc); | |
3531 ea = ea->optimize(WANTvalue | WANTinterpret); | |
3532 tiargs->data[j] = ea; | |
3533 } | |
3534 else if (sa) | |
3535 { tiargs->data[j] = sa; | |
3536 TupleDeclaration *d = sa->toAlias()->isTupleDeclaration(); | |
3537 if (d) | |
3538 { | |
3539 size_t dim = d->objects->dim; | |
3540 tiargs->remove(j); | |
3541 tiargs->insert(j, d->objects); | |
3542 j--; | |
3543 } | |
3544 } | |
3545 else if (ta) | |
3546 { | |
3547 if (ta->ty == Ttuple) | |
3548 { // Expand tuple | |
3549 TypeTuple *tt = (TypeTuple *)ta; | |
3550 size_t dim = tt->arguments->dim; | |
3551 tiargs->remove(j); | |
3552 if (dim) | |
3553 { tiargs->reserve(dim); | |
3554 for (size_t i = 0; i < dim; i++) | |
3555 { Argument *arg = (Argument *)tt->arguments->data[i]; | |
3556 tiargs->insert(j + i, arg->type); | |
3557 } | |
3558 } | |
3559 j--; | |
3560 } | |
3561 else | |
3562 tiargs->data[j] = ta; | |
3563 } | |
3564 else | |
3565 { | |
3566 assert(global.errors); | |
3567 tiargs->data[j] = Type::terror; | |
3568 } | |
3569 } | |
3570 else if (ea) | |
3571 { | |
3572 if (!ea) | |
3573 { assert(global.errors); | |
3574 ea = new IntegerExp(0); | |
3575 } | |
3576 assert(ea); | |
3577 ea = ea->semantic(sc); | |
3578 ea = ea->optimize(WANTvalue | WANTinterpret); | |
3579 tiargs->data[j] = ea; | |
3580 if (ea->op == TOKtype) | |
3581 tiargs->data[j] = ea->type; | |
3582 } | |
3583 else if (sa) | |
3584 { | |
3585 } | |
3586 else | |
3587 { | |
3588 assert(0); | |
3589 } | |
3590 //printf("1: tiargs->data[%d] = %p\n", j, tiargs->data[j]); | |
3591 } | |
3592 #if 0 | |
3593 printf("-TemplateInstance::semanticTiargs('%s', this=%p)\n", toChars(), this); | |
3594 for (size_t j = 0; j < tiargs->dim; j++) | |
3595 { | |
3596 Object *o = (Object *)tiargs->data[j]; | |
3597 Type *ta = isType(o); | |
3598 Expression *ea = isExpression(o); | |
3599 Dsymbol *sa = isDsymbol(o); | |
3600 Tuple *va = isTuple(o); | |
3601 | |
3602 printf("\ttiargs[%d] = ta %p, ea %p, sa %p, va %p\n", j, ta, ea, sa, va); | |
3603 } | |
3604 #endif | |
3605 } | |
3606 | |
3607 /********************************************** | |
3608 * Find template declaration corresponding to template instance. | |
3609 */ | |
3610 | |
3611 TemplateDeclaration *TemplateInstance::findTemplateDeclaration(Scope *sc) | |
3612 { | |
3613 //printf("TemplateInstance::findTemplateDeclaration() %s\n", toChars()); | |
3614 if (!tempdecl) | |
3615 { | |
3616 /* Given: | |
3617 * foo!( ... ) | |
3618 * figure out which TemplateDeclaration foo refers to. | |
3619 */ | |
3620 Dsymbol *s; | |
3621 Dsymbol *scopesym; | |
3622 Identifier *id; | |
3623 int i; | |
3624 | |
3625 id = name; | |
3626 s = sc->search(loc, id, &scopesym); | |
3627 if (!s) | |
3628 { error("identifier '%s' is not defined", id->toChars()); | |
3629 return NULL; | |
3630 } | |
3631 #if LOG | |
3632 printf("It's an instance of '%s' kind '%s'\n", s->toChars(), s->kind()); | |
3633 if (s->parent) | |
3634 printf("s->parent = '%s'\n", s->parent->toChars()); | |
3635 #endif | |
3636 withsym = scopesym->isWithScopeSymbol(); | |
3637 | |
3638 /* We might have found an alias within a template when | |
3639 * we really want the template. | |
3640 */ | |
3641 TemplateInstance *ti; | |
3642 if (s->parent && | |
3643 (ti = s->parent->isTemplateInstance()) != NULL) | |
3644 { | |
3645 if ( | |
3646 (ti->name == id || | |
3647 ti->toAlias()->ident == id) | |
3648 && | |
3649 ti->tempdecl) | |
3650 { | |
3651 /* This is so that one can refer to the enclosing | |
3652 * template, even if it has the same name as a member | |
3653 * of the template, if it has a !(arguments) | |
3654 */ | |
3655 tempdecl = ti->tempdecl; | |
3656 if (tempdecl->overroot) // if not start of overloaded list of TemplateDeclaration's | |
3657 tempdecl = tempdecl->overroot; // then get the start | |
3658 s = tempdecl; | |
3659 } | |
3660 } | |
3661 | |
3662 s = s->toAlias(); | |
3663 | |
3664 /* It should be a TemplateDeclaration, not some other symbol | |
3665 */ | |
3666 tempdecl = s->isTemplateDeclaration(); | |
3667 if (!tempdecl) | |
3668 { | |
3669 if (!s->parent && global.errors) | |
3670 return NULL; | |
3671 if (!s->parent && s->getType()) | |
3672 { Dsymbol *s2 = s->getType()->toDsymbol(sc); | |
3673 if (!s2) | |
3674 { | |
3675 error("%s is not a template declaration, it is a %s", id->toChars(), s->kind()); | |
3676 return NULL; | |
3677 } | |
3678 s = s2; | |
3679 } | |
3680 #ifdef DEBUG | |
3681 //if (!s->parent) printf("s = %s %s\n", s->kind(), s->toChars()); | |
3682 #endif | |
3683 //assert(s->parent); | |
3684 TemplateInstance *ti = s->parent ? s->parent->isTemplateInstance() : NULL; | |
3685 if (ti && | |
3686 (ti->name == id || | |
3687 ti->toAlias()->ident == id) | |
3688 && | |
3689 ti->tempdecl) | |
3690 { | |
3691 /* This is so that one can refer to the enclosing | |
3692 * template, even if it has the same name as a member | |
3693 * of the template, if it has a !(arguments) | |
3694 */ | |
3695 tempdecl = ti->tempdecl; | |
3696 if (tempdecl->overroot) // if not start of overloaded list of TemplateDeclaration's | |
3697 tempdecl = tempdecl->overroot; // then get the start | |
3698 } | |
3699 else | |
3700 { | |
3701 error("%s is not a template declaration, it is a %s", id->toChars(), s->kind()); | |
3702 return NULL; | |
3703 } | |
3704 } | |
3705 } | |
3706 else | |
3707 assert(tempdecl->isTemplateDeclaration()); | |
3708 return tempdecl; | |
3709 } | |
3710 | |
3711 TemplateDeclaration *TemplateInstance::findBestMatch(Scope *sc) | |
3712 { | |
3713 /* Since there can be multiple TemplateDeclaration's with the same | |
3714 * name, look for the best match. | |
3715 */ | |
3716 TemplateDeclaration *td_ambig = NULL; | |
3717 TemplateDeclaration *td_best = NULL; | |
3718 MATCH m_best = MATCHnomatch; | |
3719 Objects dedtypes; | |
3720 | |
3721 #if LOG | |
3722 printf("TemplateInstance::findBestMatch()\n"); | |
3723 #endif | |
3724 for (TemplateDeclaration *td = tempdecl; td; td = td->overnext) | |
3725 { | |
3726 MATCH m; | |
3727 | |
3728 //if (tiargs->dim) printf("2: tiargs->dim = %d, data[0] = %p\n", tiargs->dim, tiargs->data[0]); | |
3729 | |
3730 // If more arguments than parameters, | |
3731 // then this is no match. | |
3732 if (td->parameters->dim < tiargs->dim) | |
3733 { | |
3734 if (!td->isVariadic()) | |
3735 continue; | |
3736 } | |
3737 | |
3738 dedtypes.setDim(td->parameters->dim); | |
3739 dedtypes.zero(); | |
3740 if (!td->scope) | |
3741 { | |
3742 error("forward reference to template declaration %s", td->toChars()); | |
3743 return NULL; | |
3744 } | |
3745 m = td->matchWithInstance(this, &dedtypes, 0); | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3746 //printf("matchWithInstance = %d\n", m); |
336 | 3747 if (!m) // no match at all |
3748 continue; | |
3749 | |
3750 if (m < m_best) | |
3751 goto Ltd_best; | |
3752 if (m > m_best) | |
3753 goto Ltd; | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3754 |
336 | 3755 { |
3756 // Disambiguate by picking the most specialized TemplateDeclaration | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3757 MATCH c1 = td->leastAsSpecialized(td_best); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3758 MATCH c2 = td_best->leastAsSpecialized(td); |
336 | 3759 //printf("c1 = %d, c2 = %d\n", c1, c2); |
3760 | |
3761 if (c1 > c2) | |
3762 goto Ltd; | |
3763 else if (c1 < c2) | |
3764 goto Ltd_best; | |
3765 else | |
3766 goto Lambig; | |
3767 } | |
3768 | |
3769 Lambig: // td_best and td are ambiguous | |
3770 td_ambig = td; | |
3771 continue; | |
3772 | |
3773 Ltd_best: // td_best is the best match so far | |
3774 td_ambig = NULL; | |
3775 continue; | |
3776 | |
3777 Ltd: // td is the new best match | |
3778 td_ambig = NULL; | |
3779 td_best = td; | |
3780 m_best = m; | |
3781 tdtypes.setDim(dedtypes.dim); | |
3782 memcpy(tdtypes.data, dedtypes.data, tdtypes.dim * sizeof(void *)); | |
3783 continue; | |
3784 } | |
3785 | |
3786 if (!td_best) | |
3787 { | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3788 if (tempdecl && !tempdecl->overnext) |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3789 // Only one template, so we can give better error message |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3790 error("%s does not match template declaration %s", toChars(), tempdecl->toChars()); |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3791 else |
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3792 error("%s does not match any template declaration", toChars()); |
336 | 3793 return NULL; |
3794 } | |
3795 if (td_ambig) | |
3796 { | |
3797 error("%s matches more than one template declaration, %s and %s", | |
3798 toChars(), td_best->toChars(), td_ambig->toChars()); | |
3799 } | |
3800 | |
3801 /* The best match is td_best | |
3802 */ | |
3803 tempdecl = td_best; | |
3804 | |
3805 #if 0 | |
3806 /* Cast any value arguments to be same type as value parameter | |
3807 */ | |
3808 for (size_t i = 0; i < tiargs->dim; i++) | |
3809 { Object *o = (Object *)tiargs->data[i]; | |
3810 Expression *ea = isExpression(o); // value argument | |
3811 TemplateParameter *tp = (TemplateParameter *)tempdecl->parameters->data[i]; | |
3812 assert(tp); | |
3813 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
3814 if (tvp) | |
3815 { | |
3816 assert(ea); | |
3817 ea = ea->castTo(tvp->valType); | |
3818 ea = ea->optimize(WANTvalue | WANTinterpret); | |
3819 tiargs->data[i] = (Object *)ea; | |
3820 } | |
3821 } | |
3822 #endif | |
3823 | |
3824 #if LOG | |
3825 printf("\tIt's a match with template declaration '%s'\n", tempdecl->toChars()); | |
3826 #endif | |
3827 return tempdecl; | |
3828 } | |
3829 | |
3830 | |
3831 /***************************************** | |
3832 * Determines if a TemplateInstance will need a nested | |
3833 * generation of the TemplateDeclaration. | |
3834 */ | |
3835 | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3836 int TemplateInstance::hasNestedArgs(Objects *args) |
336 | 3837 { int nested = 0; |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3838 //printf("TemplateInstance::hasNestedArgs('%s')\n", tempdecl->ident->toChars()); |
336 | 3839 |
3840 /* A nested instance happens when an argument references a local | |
3841 * symbol that is on the stack. | |
3842 */ | |
3843 for (size_t i = 0; i < args->dim; i++) | |
3844 { Object *o = (Object *)args->data[i]; | |
3845 Expression *ea = isExpression(o); | |
3846 Dsymbol *sa = isDsymbol(o); | |
3847 Tuple *va = isTuple(o); | |
3848 if (ea) | |
3849 { | |
3850 if (ea->op == TOKvar) | |
3851 { | |
3852 sa = ((VarExp *)ea)->var; | |
3853 goto Lsa; | |
3854 } | |
3855 if (ea->op == TOKfunction) | |
3856 { | |
3857 sa = ((FuncExp *)ea)->fd; | |
3858 goto Lsa; | |
3859 } | |
3860 } | |
3861 else if (sa) | |
3862 { | |
3863 Lsa: | |
3864 Declaration *d = sa->isDeclaration(); | |
3865 if (d && !d->isDataseg() && | |
3866 #if DMDV2 | |
3867 !(d->storage_class & STCmanifest) && | |
3868 #endif | |
3869 (!d->isFuncDeclaration() || d->isFuncDeclaration()->isNested()) && | |
3870 !isTemplateMixin()) | |
3871 { | |
3872 // if module level template | |
3873 if (tempdecl->toParent()->isModule()) | |
3874 { Dsymbol *dparent = d->toParent(); | |
3875 if (!isnested) | |
3876 isnested = dparent; | |
3877 else if (isnested != dparent) | |
3878 { | |
3879 /* Select the more deeply nested of the two. | |
3880 * Error if one is not nested inside the other. | |
3881 */ | |
3882 for (Dsymbol *p = isnested; p; p = p->parent) | |
3883 { | |
3884 if (p == dparent) | |
3885 goto L1; // isnested is most nested | |
3886 } | |
876
27a379f288bf
Merged DMD 1.039
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
875
diff
changeset
|
3887 for (Dsymbol *p = dparent; p; p = p->parent) |
336 | 3888 { |
3889 if (p == isnested) | |
3890 { isnested = dparent; | |
3891 goto L1; // dparent is most nested | |
3892 } | |
3893 } | |
876
27a379f288bf
Merged DMD 1.039
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
875
diff
changeset
|
3894 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
|
3895 toChars(), isnested->toChars(), dparent->toChars()); |
336 | 3896 } |
3897 L1: | |
3898 //printf("\tnested inside %s\n", isnested->toChars()); | |
3899 nested |= 1; | |
3900 } | |
3901 else | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3902 error("cannot use local '%s' as parameter to non-global template %s", d->toChars(), tempdecl->toChars()); |
336 | 3903 } |
3904 } | |
3905 else if (va) | |
3906 { | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3907 nested |= hasNestedArgs(&va->objects); |
336 | 3908 } |
3909 } | |
3910 return nested; | |
3911 } | |
3912 | |
3913 /**************************************** | |
3914 * This instance needs an identifier for name mangling purposes. | |
3915 * Create one by taking the template declaration name and adding | |
3916 * the type signature for it. | |
3917 */ | |
3918 | |
3919 Identifier *TemplateInstance::genIdent() | |
3920 { OutBuffer buf; | |
3921 char *id; | |
3922 Objects *args; | |
3923 | |
3924 //printf("TemplateInstance::genIdent('%s')\n", tempdecl->ident->toChars()); | |
3925 id = tempdecl->ident->toChars(); | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3926 buf.printf("__T%zu%s", strlen(id), id); |
336 | 3927 args = tiargs; |
3928 for (int i = 0; i < args->dim; i++) | |
3929 { Object *o = (Object *)args->data[i]; | |
3930 Type *ta = isType(o); | |
3931 Expression *ea = isExpression(o); | |
3932 Dsymbol *sa = isDsymbol(o); | |
3933 Tuple *va = isTuple(o); | |
3934 //printf("\to %p ta %p ea %p sa %p va %p\n", o, ta, ea, sa, va); | |
3935 if (ta) | |
3936 { | |
3937 buf.writeByte('T'); | |
3938 if (ta->deco) | |
3939 buf.writestring(ta->deco); | |
3940 else | |
3941 { | |
3942 #ifdef DEBUG | |
3943 printf("ta = %d, %s\n", ta->ty, ta->toChars()); | |
3944 #endif | |
3945 assert(global.errors); | |
3946 } | |
3947 } | |
3948 else if (ea) | |
3949 { sinteger_t v; | |
3950 real_t r; | |
3951 | |
3952 if (ea->op == TOKvar) | |
3953 { | |
3954 sa = ((VarExp *)ea)->var; | |
3955 ea = NULL; | |
3956 goto Lsa; | |
3957 } | |
3958 if (ea->op == TOKfunction) | |
3959 { | |
3960 sa = ((FuncExp *)ea)->fd; | |
3961 ea = NULL; | |
3962 goto Lsa; | |
3963 } | |
3964 buf.writeByte('V'); | |
3965 if (ea->op == TOKtuple) | |
3966 { ea->error("tuple is not a valid template value argument"); | |
3967 continue; | |
3968 } | |
3969 #if 1 | |
3970 /* Use deco that matches what it would be for a function parameter | |
3971 */ | |
3972 buf.writestring(ea->type->deco); | |
3973 #else | |
3974 // Use type of parameter, not type of argument | |
3975 TemplateParameter *tp = (TemplateParameter *)tempdecl->parameters->data[i]; | |
3976 assert(tp); | |
3977 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
3978 assert(tvp); | |
3979 buf.writestring(tvp->valType->deco); | |
3980 #endif | |
3981 ea->toMangleBuffer(&buf); | |
3982 } | |
3983 else if (sa) | |
3984 { | |
3985 Lsa: | |
3986 buf.writeByte('S'); | |
3987 Declaration *d = sa->isDeclaration(); | |
3988 if (d && !d->type->deco) | |
3989 error("forward reference of %s", d->toChars()); | |
3990 else | |
3991 { | |
3992 char *p = sa->mangle(); | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3993 buf.printf("%zu%s", strlen(p), p); |
336 | 3994 } |
3995 } | |
3996 else if (va) | |
3997 { | |
3998 assert(i + 1 == args->dim); // must be last one | |
3999 args = &va->objects; | |
4000 i = -1; | |
4001 } | |
4002 else | |
4003 assert(0); | |
4004 } | |
4005 buf.writeByte('Z'); | |
4006 id = buf.toChars(); | |
4007 buf.data = NULL; | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
4008 //printf("\tgenIdent = %s\n", id); |
336 | 4009 return new Identifier(id, TOKidentifier); |
4010 } | |
4011 | |
4012 | |
4013 /**************************************************** | |
4014 * Declare parameters of template instance, initialize them with the | |
4015 * template instance arguments. | |
4016 */ | |
4017 | |
4018 void TemplateInstance::declareParameters(Scope *scope) | |
4019 { | |
4020 //printf("TemplateInstance::declareParameters()\n"); | |
4021 for (int i = 0; i < tdtypes.dim; i++) | |
4022 { | |
4023 TemplateParameter *tp = (TemplateParameter *)tempdecl->parameters->data[i]; | |
4024 //Object *o = (Object *)tiargs->data[i]; | |
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
4025 Object *o = (Object *)tdtypes.data[i]; // initializer for tp |
336 | 4026 |
4027 //printf("\ttdtypes[%d] = %p\n", i, o); | |
4028 tempdecl->declareParameter(scope, tp, o); | |
4029 } | |
4030 } | |
4031 | |
4032 | |
4033 void TemplateInstance::semantic2(Scope *sc) | |
4034 { int i; | |
4035 | |
4036 if (semanticdone >= 2) | |
4037 return; | |
4038 semanticdone = 2; | |
4039 #if LOG | |
4040 printf("+TemplateInstance::semantic2('%s')\n", toChars()); | |
4041 #endif | |
4042 if (!errors && members) | |
4043 { | |
4044 sc = tempdecl->scope; | |
4045 assert(sc); | |
4046 sc = sc->push(argsym); | |
4047 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
|
4048 sc->tinst = this; |
336 | 4049 for (i = 0; i < members->dim; i++) |
4050 { | |
4051 Dsymbol *s = (Dsymbol *)members->data[i]; | |
4052 #if LOG | |
4053 printf("\tmember '%s', kind = '%s'\n", s->toChars(), s->kind()); | |
4054 #endif | |
4055 s->semantic2(sc); | |
4056 } | |
4057 sc = sc->pop(); | |
4058 sc->pop(); | |
4059 } | |
4060 #if LOG | |
4061 printf("-TemplateInstance::semantic2('%s')\n", toChars()); | |
4062 #endif | |
4063 } | |
4064 | |
4065 void TemplateInstance::semantic3(Scope *sc) | |
4066 { | |
4067 #if LOG | |
4068 printf("TemplateInstance::semantic3('%s'), semanticdone = %d\n", toChars(), semanticdone); | |
4069 #endif | |
4070 //if (toChars()[0] == 'D') *(char*)0=0; | |
4071 if (semanticdone >= 3) | |
4072 return; | |
4073 semanticdone = 3; | |
4074 if (!errors && members) | |
4075 { | |
4076 sc = tempdecl->scope; | |
4077 sc = sc->push(argsym); | |
4078 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
|
4079 sc->tinst = this; |
336 | 4080 for (int i = 0; i < members->dim; i++) |
4081 { | |
4082 Dsymbol *s = (Dsymbol *)members->data[i]; | |
4083 s->semantic3(sc); | |
4084 } | |
4085 sc = sc->pop(); | |
4086 sc->pop(); | |
4087 } | |
4088 } | |
4089 | |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
4090 #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
|
4091 |
336 | 4092 void TemplateInstance::toObjFile(int multiobj) |
4093 { | |
4094 #if LOG | |
4095 printf("TemplateInstance::toObjFile('%s', this = %p)\n", toChars(), this); | |
4096 #endif | |
4097 if (!errors && members) | |
4098 { | |
4099 if (multiobj) | |
4100 // Append to list of object files to be written later | |
4101 //obj_append(this); | |
4102 assert(0 && "multiobj"); | |
4103 else | |
4104 { | |
4105 for (int i = 0; i < members->dim; i++) | |
4106 { | |
4107 Dsymbol *s = (Dsymbol *)members->data[i]; | |
4108 s->toObjFile(multiobj); | |
4109 } | |
4110 } | |
4111 } | |
4112 } | |
4113 | |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
4114 #endif |
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
4115 |
336 | 4116 void TemplateInstance::inlineScan() |
4117 { | |
4118 #if LOG | |
4119 printf("TemplateInstance::inlineScan('%s')\n", toChars()); | |
4120 #endif | |
4121 if (!errors && members) | |
4122 { | |
4123 for (int i = 0; i < members->dim; i++) | |
4124 { | |
4125 Dsymbol *s = (Dsymbol *)members->data[i]; | |
4126 s->inlineScan(); | |
4127 } | |
4128 } | |
4129 } | |
4130 | |
4131 void TemplateInstance::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
4132 { | |
4133 int i; | |
4134 | |
4135 Identifier *id = name; | |
4136 buf->writestring(id->toChars()); | |
4137 buf->writestring("!("); | |
4138 if (nest) | |
4139 buf->writestring("..."); | |
4140 else | |
4141 { | |
4142 nest++; | |
4143 Objects *args = tiargs; | |
4144 for (i = 0; i < args->dim; i++) | |
4145 { | |
4146 if (i) | |
4147 buf->writeByte(','); | |
4148 Object *oarg = (Object *)args->data[i]; | |
4149 ObjectToCBuffer(buf, hgs, oarg); | |
4150 } | |
4151 nest--; | |
4152 } | |
4153 buf->writeByte(')'); | |
4154 } | |
4155 | |
4156 | |
4157 Dsymbol *TemplateInstance::toAlias() | |
4158 { | |
4159 #if LOG | |
4160 printf("TemplateInstance::toAlias()\n"); | |
4161 #endif | |
4162 if (!inst) | |
4163 { error("cannot resolve forward reference"); | |
4164 return this; | |
4165 } | |
4166 | |
4167 if (inst != this) | |
4168 return inst->toAlias(); | |
4169 | |
4170 if (aliasdecl) | |
4171 return aliasdecl->toAlias(); | |
4172 | |
4173 return inst; | |
4174 } | |
4175 | |
4176 AliasDeclaration *TemplateInstance::isAliasDeclaration() | |
4177 { | |
4178 return aliasdecl; | |
4179 } | |
4180 | |
4181 const char *TemplateInstance::kind() | |
4182 { | |
4183 return "template instance"; | |
4184 } | |
4185 | |
4186 int TemplateInstance::oneMember(Dsymbol **ps) | |
4187 { | |
4188 *ps = NULL; | |
4189 return TRUE; | |
4190 } | |
4191 | |
4192 char *TemplateInstance::toChars() | |
4193 { | |
4194 OutBuffer buf; | |
4195 HdrGenState hgs; | |
4196 char *s; | |
4197 | |
4198 toCBuffer(&buf, &hgs); | |
4199 s = buf.toChars(); | |
4200 buf.data = NULL; | |
4201 return s; | |
4202 } | |
4203 | |
561
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4204 void TemplateInstance::printInstantiationTrace() |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4205 { |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4206 if(global.gag) |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4207 return; |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4208 |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4209 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
|
4210 |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4211 // determine instantiation depth |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4212 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
|
4213 TemplateInstance* cur = this; |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4214 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
|
4215 ++n_instantiations; |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4216 |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4217 // 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
|
4218 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
|
4219 { |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4220 cur = this; |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4221 while(cur) |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4222 { |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4223 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
|
4224 cur = cur->tinst; |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4225 } |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4226 } |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4227 else |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4228 { |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4229 cur = this; |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4230 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
|
4231 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
|
4232 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
|
4233 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
|
4234 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
|
4235 {} |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4236 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
|
4237 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
|
4238 } |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4239 } |
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4240 |
336 | 4241 /* ======================== TemplateMixin ================================ */ |
4242 | |
4243 TemplateMixin::TemplateMixin(Loc loc, Identifier *ident, Type *tqual, | |
4244 Array *idents, Objects *tiargs) | |
4245 : TemplateInstance(loc, (Identifier *)idents->data[idents->dim - 1]) | |
4246 { | |
4247 //printf("TemplateMixin(ident = '%s')\n", ident ? ident->toChars() : ""); | |
4248 this->ident = ident; | |
4249 this->tqual = tqual; | |
4250 this->idents = idents; | |
4251 this->tiargs = tiargs ? tiargs : new Objects(); | |
4252 this->scope = NULL; | |
4253 } | |
4254 | |
4255 Dsymbol *TemplateMixin::syntaxCopy(Dsymbol *s) | |
4256 { TemplateMixin *tm; | |
4257 | |
4258 Array *ids = new Array(); | |
4259 ids->setDim(idents->dim); | |
4260 for (int i = 0; i < idents->dim; i++) | |
4261 { // Matches TypeQualified::syntaxCopyHelper() | |
4262 Identifier *id = (Identifier *)idents->data[i]; | |
4263 if (id->dyncast() == DYNCAST_DSYMBOL) | |
4264 { | |
4265 TemplateInstance *ti = (TemplateInstance *)id; | |
4266 | |
4267 ti = (TemplateInstance *)ti->syntaxCopy(NULL); | |
4268 id = (Identifier *)ti; | |
4269 } | |
4270 ids->data[i] = id; | |
4271 } | |
4272 | |
4273 tm = new TemplateMixin(loc, ident, | |
4274 (Type *)(tqual ? tqual->syntaxCopy() : NULL), | |
4275 ids, tiargs); | |
4276 TemplateInstance::syntaxCopy(tm); | |
4277 return tm; | |
4278 } | |
4279 | |
4280 void TemplateMixin::semantic(Scope *sc) | |
4281 { | |
4282 #if LOG | |
4283 printf("+TemplateMixin::semantic('%s', this=%p)\n", toChars(), this); | |
4284 fflush(stdout); | |
4285 #endif | |
4286 if (semanticdone && | |
4287 // This for when a class/struct contains mixin members, and | |
4288 // is done over because of forward references | |
4289 (!parent || !toParent()->isAggregateDeclaration())) | |
4290 { | |
4291 #if LOG | |
4292 printf("\tsemantic done\n"); | |
4293 #endif | |
4294 return; | |
4295 } | |
4296 if (!semanticdone) | |
4297 semanticdone = 1; | |
4298 #if LOG | |
4299 printf("\tdo semantic\n"); | |
4300 #endif | |
4301 | |
4302 #if !IN_LLVM | |
4303 // dont know what this is | |
4304 util_progress(); | |
4305 #endif | |
4306 | |
4307 Scope *scx = NULL; | |
4308 if (scope) | |
4309 { sc = scope; | |
4310 scx = scope; // save so we don't make redundant copies | |
4311 scope = NULL; | |
4312 } | |
4313 | |
4314 // Follow qualifications to find the TemplateDeclaration | |
4315 if (!tempdecl) | |
4316 { Dsymbol *s; | |
4317 int i; | |
4318 Identifier *id; | |
4319 | |
4320 if (tqual) | |
4321 { s = tqual->toDsymbol(sc); | |
4322 i = 0; | |
4323 } | |
4324 else | |
4325 { | |
4326 i = 1; | |
4327 id = (Identifier *)idents->data[0]; | |
4328 switch (id->dyncast()) | |
4329 { | |
4330 case DYNCAST_IDENTIFIER: | |
4331 s = sc->search(loc, id, NULL); | |
4332 break; | |
4333 | |
4334 case DYNCAST_DSYMBOL: | |
4335 { | |
4336 TemplateInstance *ti = (TemplateInstance *)id; | |
4337 ti->semantic(sc); | |
4338 s = ti; | |
4339 break; | |
4340 } | |
4341 default: | |
4342 assert(0); | |
4343 } | |
4344 } | |
4345 | |
4346 for (; i < idents->dim; i++) | |
4347 { | |
4348 if (!s) | |
4349 break; | |
4350 id = (Identifier *)idents->data[i]; | |
4351 s = s->searchX(loc, sc, id); | |
4352 } | |
4353 if (!s) | |
4354 { | |
4355 error("is not defined"); | |
4356 inst = this; | |
4357 return; | |
4358 } | |
4359 tempdecl = s->toAlias()->isTemplateDeclaration(); | |
4360 if (!tempdecl) | |
4361 { | |
4362 error("%s isn't a template", s->toChars()); | |
4363 inst = this; | |
4364 return; | |
4365 } | |
4366 } | |
4367 | |
4368 // Look for forward reference | |
4369 assert(tempdecl); | |
4370 for (TemplateDeclaration *td = tempdecl; td; td = td->overnext) | |
4371 { | |
4372 if (!td->scope) | |
4373 { | |
4374 /* Cannot handle forward references if mixin is a struct member, | |
4375 * because addField must happen during struct's semantic, not | |
4376 * during the mixin semantic. | |
4377 * runDeferred will re-run mixin's semantic outside of the struct's | |
4378 * semantic. | |
4379 */ | |
4380 semanticdone = 0; | |
4381 AggregateDeclaration *ad = toParent()->isAggregateDeclaration(); | |
4382 if (ad) | |
4383 ad->sizeok = 2; | |
4384 else | |
4385 { | |
4386 // Forward reference | |
4387 //printf("forward reference - deferring\n"); | |
4388 scope = scx ? scx : new Scope(*sc); | |
4389 scope->setNoFree(); | |
4390 scope->module->addDeferredSemantic(this); | |
4391 } | |
4392 return; | |
4393 } | |
4394 } | |
4395 | |
4396 // Run semantic on each argument, place results in tiargs[] | |
4397 semanticTiargs(sc); | |
4398 | |
4399 tempdecl = findBestMatch(sc); | |
4400 if (!tempdecl) | |
4401 { inst = this; | |
4402 return; // error recovery | |
4403 } | |
4404 | |
4405 if (!ident) | |
4406 ident = genIdent(); | |
4407 | |
4408 inst = this; | |
4409 parent = sc->parent; | |
4410 | |
4411 /* Detect recursive mixin instantiations. | |
4412 */ | |
4413 for (Dsymbol *s = parent; s; s = s->parent) | |
4414 { | |
4415 //printf("\ts = '%s'\n", s->toChars()); | |
4416 TemplateMixin *tm = s->isTemplateMixin(); | |
4417 if (!tm || tempdecl != tm->tempdecl) | |
4418 continue; | |
4419 | |
4420 /* Different argument list lengths happen with variadic args | |
4421 */ | |
4422 if (tiargs->dim != tm->tiargs->dim) | |
4423 continue; | |
4424 | |
4425 for (int i = 0; i < tiargs->dim; i++) | |
4426 { Object *o = (Object *)tiargs->data[i]; | |
4427 Type *ta = isType(o); | |
4428 Expression *ea = isExpression(o); | |
4429 Dsymbol *sa = isDsymbol(o); | |
4430 Object *tmo = (Object *)tm->tiargs->data[i]; | |
4431 if (ta) | |
4432 { | |
4433 Type *tmta = isType(tmo); | |
4434 if (!tmta) | |
4435 goto Lcontinue; | |
4436 if (!ta->equals(tmta)) | |
4437 goto Lcontinue; | |
4438 } | |
4439 else if (ea) | |
4440 { Expression *tme = isExpression(tmo); | |
4441 if (!tme || !ea->equals(tme)) | |
4442 goto Lcontinue; | |
4443 } | |
4444 else if (sa) | |
4445 { | |
4446 Dsymbol *tmsa = isDsymbol(tmo); | |
4447 if (sa != tmsa) | |
4448 goto Lcontinue; | |
4449 } | |
4450 else | |
4451 assert(0); | |
4452 } | |
4453 error("recursive mixin instantiation"); | |
4454 return; | |
4455 | |
4456 Lcontinue: | |
4457 continue; | |
4458 } | |
4459 | |
4460 // Copy the syntax trees from the TemplateDeclaration | |
4461 members = Dsymbol::arraySyntaxCopy(tempdecl->members); | |
4462 if (!members) | |
4463 return; | |
4464 | |
4465 symtab = new DsymbolTable(); | |
4466 | |
4467 for (Scope *sce = sc; 1; sce = sce->enclosing) | |
4468 { | |
4469 ScopeDsymbol *sds = (ScopeDsymbol *)sce->scopesym; | |
4470 if (sds) | |
4471 { | |
4472 sds->importScope(this, PROTpublic); | |
4473 break; | |
4474 } | |
4475 } | |
4476 | |
4477 #if LOG | |
4478 printf("\tcreate scope for template parameters '%s'\n", toChars()); | |
4479 #endif | |
4480 Scope *scy = sc; | |
4481 scy = sc->push(this); | |
4482 scy->parent = this; | |
4483 | |
4484 argsym = new ScopeDsymbol(); | |
4485 argsym->parent = scy->parent; | |
4486 Scope *scope = scy->push(argsym); | |
4487 | |
4488 unsigned errorsave = global.errors; | |
4489 | |
4490 // Declare each template parameter as an alias for the argument type | |
4491 declareParameters(scope); | |
4492 | |
4493 // Add members to enclosing scope, as well as this scope | |
4494 for (unsigned i = 0; i < members->dim; i++) | |
4495 { Dsymbol *s; | |
4496 | |
4497 s = (Dsymbol *)members->data[i]; | |
4498 s->addMember(scope, this, i); | |
4499 //sc->insert(s); | |
4500 //printf("sc->parent = %p, sc->scopesym = %p\n", sc->parent, sc->scopesym); | |
4501 //printf("s->parent = %s\n", s->parent->toChars()); | |
4502 } | |
4503 | |
4504 // Do semantic() analysis on template instance members | |
4505 #if LOG | |
4506 printf("\tdo semantic() on template instance members '%s'\n", toChars()); | |
4507 #endif | |
4508 Scope *sc2; | |
4509 sc2 = scope->push(this); | |
4510 sc2->offset = sc->offset; | |
4511 for (int i = 0; i < members->dim; i++) | |
4512 { | |
4513 Dsymbol *s = (Dsymbol *)members->data[i]; | |
4514 s->semantic(sc2); | |
4515 } | |
4516 sc->offset = sc2->offset; | |
4517 | |
4518 /* The problem is when to parse the initializer for a variable. | |
4519 * Perhaps VarDeclaration::semantic() should do it like it does | |
4520 * for initializers inside a function. | |
4521 */ | |
4522 // if (sc->parent->isFuncDeclaration()) | |
4523 | |
4524 semantic2(sc2); | |
4525 | |
4526 if (sc->func) | |
4527 { | |
4528 semantic3(sc2); | |
4529 } | |
4530 | |
4531 // Give additional context info if error occurred during instantiation | |
4532 if (global.errors != errorsave) | |
4533 { | |
4534 error("error instantiating"); | |
4535 } | |
4536 | |
4537 sc2->pop(); | |
4538 | |
4539 scope->pop(); | |
4540 | |
4541 // if (!isAnonymous()) | |
4542 { | |
4543 scy->pop(); | |
4544 } | |
4545 #if LOG | |
4546 printf("-TemplateMixin::semantic('%s', this=%p)\n", toChars(), this); | |
4547 #endif | |
4548 } | |
4549 | |
4550 void TemplateMixin::semantic2(Scope *sc) | |
4551 { int i; | |
4552 | |
4553 if (semanticdone >= 2) | |
4554 return; | |
4555 semanticdone = 2; | |
4556 #if LOG | |
4557 printf("+TemplateMixin::semantic2('%s')\n", toChars()); | |
4558 #endif | |
4559 if (members) | |
4560 { | |
4561 assert(sc); | |
4562 sc = sc->push(argsym); | |
4563 sc = sc->push(this); | |
4564 for (i = 0; i < members->dim; i++) | |
4565 { | |
4566 Dsymbol *s = (Dsymbol *)members->data[i]; | |
4567 #if LOG | |
4568 printf("\tmember '%s', kind = '%s'\n", s->toChars(), s->kind()); | |
4569 #endif | |
4570 s->semantic2(sc); | |
4571 } | |
4572 sc = sc->pop(); | |
4573 sc->pop(); | |
4574 } | |
4575 #if LOG | |
4576 printf("-TemplateMixin::semantic2('%s')\n", toChars()); | |
4577 #endif | |
4578 } | |
4579 | |
4580 void TemplateMixin::semantic3(Scope *sc) | |
4581 { int i; | |
4582 | |
4583 if (semanticdone >= 3) | |
4584 return; | |
4585 semanticdone = 3; | |
4586 #if LOG | |
4587 printf("TemplateMixin::semantic3('%s')\n", toChars()); | |
4588 #endif | |
4589 if (members) | |
4590 { | |
4591 sc = sc->push(argsym); | |
4592 sc = sc->push(this); | |
4593 for (i = 0; i < members->dim; i++) | |
4594 { | |
4595 Dsymbol *s = (Dsymbol *)members->data[i]; | |
4596 s->semantic3(sc); | |
4597 } | |
4598 sc = sc->pop(); | |
4599 sc->pop(); | |
4600 } | |
4601 } | |
4602 | |
4603 void TemplateMixin::inlineScan() | |
4604 { | |
4605 TemplateInstance::inlineScan(); | |
4606 } | |
4607 | |
4608 const char *TemplateMixin::kind() | |
4609 { | |
4610 return "mixin"; | |
4611 } | |
4612 | |
4613 int TemplateMixin::oneMember(Dsymbol **ps) | |
4614 { | |
4615 return Dsymbol::oneMember(ps); | |
4616 } | |
4617 | |
4618 int TemplateMixin::hasPointers() | |
4619 { | |
4620 //printf("TemplateMixin::hasPointers() %s\n", toChars()); | |
4621 for (size_t i = 0; i < members->dim; i++) | |
4622 { | |
4623 Dsymbol *s = (Dsymbol *)members->data[i]; | |
4624 //printf(" s = %s %s\n", s->kind(), s->toChars()); | |
4625 if (s->hasPointers()) | |
4626 { | |
4627 return 1; | |
4628 } | |
4629 } | |
4630 return 0; | |
4631 } | |
4632 | |
4633 char *TemplateMixin::toChars() | |
4634 { | |
4635 OutBuffer buf; | |
4636 HdrGenState hgs; | |
4637 char *s; | |
4638 | |
4639 TemplateInstance::toCBuffer(&buf, &hgs); | |
4640 s = buf.toChars(); | |
4641 buf.data = NULL; | |
4642 return s; | |
4643 } | |
4644 | |
4645 void TemplateMixin::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
4646 { | |
4647 buf->writestring("mixin "); | |
4648 | |
4649 for (int i = 0; i < idents->dim; i++) | |
4650 { Identifier *id = (Identifier *)idents->data[i]; | |
4651 | |
4652 if (i) | |
4653 buf->writeByte('.'); | |
4654 buf->writestring(id->toChars()); | |
4655 } | |
4656 buf->writestring("!("); | |
4657 if (tiargs) | |
4658 { | |
4659 for (int i = 0; i < tiargs->dim; i++) | |
4660 { if (i) | |
4661 buf->writebyte(','); | |
4662 Object *oarg = (Object *)tiargs->data[i]; | |
4663 Type *t = isType(oarg); | |
4664 Expression *e = isExpression(oarg); | |
4665 Dsymbol *s = isDsymbol(oarg); | |
4666 if (t) | |
4667 t->toCBuffer(buf, NULL, hgs); | |
4668 else if (e) | |
4669 e->toCBuffer(buf, hgs); | |
4670 else if (s) | |
4671 { | |
4672 char *p = s->ident ? s->ident->toChars() : s->toChars(); | |
4673 buf->writestring(p); | |
4674 } | |
4675 else if (!oarg) | |
4676 { | |
4677 buf->writestring("NULL"); | |
4678 } | |
4679 else | |
4680 { | |
4681 assert(0); | |
4682 } | |
4683 } | |
4684 } | |
4685 buf->writebyte(')'); | |
4686 if (ident) | |
4687 { | |
4688 buf->writebyte(' '); | |
4689 buf->writestring(ident->toChars()); | |
4690 } | |
4691 buf->writebyte(';'); | |
4692 buf->writenl(); | |
4693 } | |
4694 | |
4695 | |
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
4696 #if IN_DMD |
336 | 4697 void TemplateMixin::toObjFile(int multiobj) |
4698 { | |
4699 //printf("TemplateMixin::toObjFile('%s')\n", toChars()); | |
4700 TemplateInstance::toObjFile(multiobj); | |
4701 } | |
1174
0b26cfb2d445
Add newlines to end of file.
Christian Kamm <kamm incasoftware de>
parents:
1147
diff
changeset
|
4702 #endif |
0b26cfb2d445
Add newlines to end of file.
Christian Kamm <kamm incasoftware de>
parents:
1147
diff
changeset
|
4703 |