Mercurial > projects > ldc
annotate dmd/class.c @ 1201:14a30bada44f
Remove unnecessary GCC_EXE CMake flag. Closes #208, thanks impulze.
author | Christian Kamm <kamm incasoftware de> |
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date | Sun, 12 Apr 2009 13:50:18 +0200 |
parents | e961851fb8be |
children | 78038e540342 |
rev | line source |
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159 | 1 |
2 // Compiler implementation of the D programming language | |
3 // Copyright (c) 1999-2008 by Digital Mars | |
4 // All Rights Reserved | |
5 // written by Walter Bright | |
6 // http://www.digitalmars.com | |
7 // License for redistribution is by either the Artistic License | |
8 // in artistic.txt, or the GNU General Public License in gnu.txt. | |
9 // See the included readme.txt for details. | |
10 | |
11 #include <stdio.h> | |
12 #include <stdlib.h> | |
13 #include <assert.h> | |
14 | |
15 #include "root.h" | |
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16 #include "rmem.h" |
159 | 17 |
18 #include "enum.h" | |
19 #include "init.h" | |
20 #include "attrib.h" | |
21 #include "declaration.h" | |
22 #include "aggregate.h" | |
23 #include "id.h" | |
24 #include "mtype.h" | |
25 #include "scope.h" | |
26 #include "module.h" | |
27 #include "expression.h" | |
28 #include "statement.h" | |
29 | |
30 /********************************* ClassDeclaration ****************************/ | |
31 | |
32 ClassDeclaration *ClassDeclaration::classinfo; | |
33 ClassDeclaration *ClassDeclaration::object; | |
34 | |
35 ClassDeclaration::ClassDeclaration(Loc loc, Identifier *id, BaseClasses *baseclasses) | |
36 : AggregateDeclaration(loc, id) | |
37 { | |
38 static char msg[] = "only object.d can define this reserved class name"; | |
39 | |
40 if (baseclasses) | |
41 this->baseclasses = *baseclasses; | |
42 baseClass = NULL; | |
43 | |
44 interfaces_dim = 0; | |
45 interfaces = NULL; | |
46 | |
47 vtblInterfaces = NULL; | |
48 | |
49 //printf("ClassDeclaration(%s), dim = %d\n", id->toChars(), this->baseclasses.dim); | |
50 | |
51 // For forward references | |
52 type = new TypeClass(this); | |
53 handle = type; | |
54 | |
55 ctor = NULL; | |
56 defaultCtor = NULL; | |
57 staticCtor = NULL; | |
58 staticDtor = NULL; | |
59 | |
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60 #if IN_DMD |
159 | 61 vtblsym = NULL; |
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62 #endif |
159 | 63 vclassinfo = NULL; |
64 | |
65 if (id) | |
66 { // Look for special class names | |
67 | |
68 if (id == Id::__sizeof || id == Id::alignof || id == Id::mangleof) | |
69 error("illegal class name"); | |
70 | |
71 // BUG: What if this is the wrong TypeInfo, i.e. it is nested? | |
72 if (id->toChars()[0] == 'T') | |
73 { | |
74 if (id == Id::TypeInfo) | |
75 { if (Type::typeinfo) | |
76 Type::typeinfo->error("%s", msg); | |
77 Type::typeinfo = this; | |
78 } | |
79 | |
80 if (id == Id::TypeInfo_Class) | |
81 { if (Type::typeinfoclass) | |
82 Type::typeinfoclass->error("%s", msg); | |
83 Type::typeinfoclass = this; | |
84 } | |
85 | |
86 if (id == Id::TypeInfo_Interface) | |
87 { if (Type::typeinfointerface) | |
88 Type::typeinfointerface->error("%s", msg); | |
89 Type::typeinfointerface = this; | |
90 } | |
91 | |
92 if (id == Id::TypeInfo_Struct) | |
93 { if (Type::typeinfostruct) | |
94 Type::typeinfostruct->error("%s", msg); | |
95 Type::typeinfostruct = this; | |
96 } | |
97 | |
98 if (id == Id::TypeInfo_Typedef) | |
99 { if (Type::typeinfotypedef) | |
100 Type::typeinfotypedef->error("%s", msg); | |
101 Type::typeinfotypedef = this; | |
102 } | |
103 | |
104 if (id == Id::TypeInfo_Pointer) | |
105 { if (Type::typeinfopointer) | |
106 Type::typeinfopointer->error("%s", msg); | |
107 Type::typeinfopointer = this; | |
108 } | |
109 | |
110 if (id == Id::TypeInfo_Array) | |
111 { if (Type::typeinfoarray) | |
112 Type::typeinfoarray->error("%s", msg); | |
113 Type::typeinfoarray = this; | |
114 } | |
115 | |
116 if (id == Id::TypeInfo_StaticArray) | |
117 { //if (Type::typeinfostaticarray) | |
118 //Type::typeinfostaticarray->error("%s", msg); | |
119 Type::typeinfostaticarray = this; | |
120 } | |
121 | |
122 if (id == Id::TypeInfo_AssociativeArray) | |
123 { if (Type::typeinfoassociativearray) | |
124 Type::typeinfoassociativearray->error("%s", msg); | |
125 Type::typeinfoassociativearray = this; | |
126 } | |
127 | |
128 if (id == Id::TypeInfo_Enum) | |
129 { if (Type::typeinfoenum) | |
130 Type::typeinfoenum->error("%s", msg); | |
131 Type::typeinfoenum = this; | |
132 } | |
133 | |
134 if (id == Id::TypeInfo_Function) | |
135 { if (Type::typeinfofunction) | |
136 Type::typeinfofunction->error("%s", msg); | |
137 Type::typeinfofunction = this; | |
138 } | |
139 | |
140 if (id == Id::TypeInfo_Delegate) | |
141 { if (Type::typeinfodelegate) | |
142 Type::typeinfodelegate->error("%s", msg); | |
143 Type::typeinfodelegate = this; | |
144 } | |
145 | |
146 if (id == Id::TypeInfo_Tuple) | |
147 { if (Type::typeinfotypelist) | |
148 Type::typeinfotypelist->error("%s", msg); | |
149 Type::typeinfotypelist = this; | |
150 } | |
151 | |
336 | 152 #if DMDV2 |
159 | 153 if (id == Id::TypeInfo_Const) |
154 { if (Type::typeinfoconst) | |
155 Type::typeinfoconst->error("%s", msg); | |
156 Type::typeinfoconst = this; | |
157 } | |
158 | |
159 if (id == Id::TypeInfo_Invariant) | |
160 { if (Type::typeinfoinvariant) | |
161 Type::typeinfoinvariant->error("%s", msg); | |
162 Type::typeinfoinvariant = this; | |
163 } | |
164 #endif | |
165 } | |
166 | |
167 if (id == Id::Object) | |
168 { if (object) | |
169 object->error("%s", msg); | |
170 object = this; | |
171 } | |
172 | |
173 if (id == Id::ClassInfo) | |
174 { if (classinfo) | |
175 classinfo->error("%s", msg); | |
176 classinfo = this; | |
177 } | |
178 | |
179 if (id == Id::ModuleInfo) | |
180 { if (Module::moduleinfo) | |
181 Module::moduleinfo->error("%s", msg); | |
182 Module::moduleinfo = this; | |
183 } | |
184 } | |
185 | |
186 com = 0; | |
187 isauto = 0; | |
188 isabstract = 0; | |
189 isnested = 0; | |
190 vthis = NULL; | |
191 inuse = 0; | |
192 } | |
193 | |
194 Dsymbol *ClassDeclaration::syntaxCopy(Dsymbol *s) | |
195 { | |
196 ClassDeclaration *cd; | |
197 | |
198 //printf("ClassDeclaration::syntaxCopy('%s')\n", toChars()); | |
199 if (s) | |
200 cd = (ClassDeclaration *)s; | |
201 else | |
202 cd = new ClassDeclaration(loc, ident, NULL); | |
203 | |
204 cd->storage_class |= storage_class; | |
205 | |
206 cd->baseclasses.setDim(this->baseclasses.dim); | |
207 for (int i = 0; i < cd->baseclasses.dim; i++) | |
208 { | |
209 BaseClass *b = (BaseClass *)this->baseclasses.data[i]; | |
210 BaseClass *b2 = new BaseClass(b->type->syntaxCopy(), b->protection); | |
211 cd->baseclasses.data[i] = b2; | |
212 } | |
213 | |
214 ScopeDsymbol::syntaxCopy(cd); | |
215 return cd; | |
216 } | |
217 | |
218 void ClassDeclaration::semantic(Scope *sc) | |
219 { int i; | |
220 unsigned offset; | |
221 | |
222 //printf("ClassDeclaration::semantic(%s), type = %p, sizeok = %d, this = %p\n", toChars(), type, sizeok, this); | |
223 //printf("\tparent = %p, '%s'\n", sc->parent, sc->parent ? sc->parent->toChars() : ""); | |
224 //printf("sc->stc = %x\n", sc->stc); | |
225 | |
226 //{ static int n; if (++n == 20) *(char*)0=0; } | |
227 | |
228 if (!ident) // if anonymous class | |
229 { char *id = "__anonclass"; | |
230 | |
231 ident = Identifier::generateId(id); | |
232 } | |
233 | |
234 if (!scope) | |
235 { | |
236 if (!parent && sc->parent && !sc->parent->isModule()) | |
237 parent = sc->parent; | |
238 | |
239 type = type->semantic(loc, sc); | |
240 handle = handle->semantic(loc, sc); | |
241 } | |
242 if (!members) // if forward reference | |
243 { //printf("\tclass '%s' is forward referenced\n", toChars()); | |
244 return; | |
245 } | |
246 if (symtab) | |
247 { if (!scope) | |
248 { //printf("\tsemantic for '%s' is already completed\n", toChars()); | |
249 return; // semantic() already completed | |
250 } | |
251 } | |
252 else | |
253 symtab = new DsymbolTable(); | |
254 | |
255 Scope *scx = NULL; | |
256 if (scope) | |
257 { sc = scope; | |
258 scx = scope; // save so we don't make redundant copies | |
259 scope = NULL; | |
260 } | |
261 #ifdef IN_GCC | |
262 methods.setDim(0); | |
263 #endif | |
264 | |
265 if (sc->stc & STCdeprecated) | |
336 | 266 { |
159 | 267 isdeprecated = 1; |
268 } | |
269 | |
270 // Expand any tuples in baseclasses[] | |
271 for (i = 0; i < baseclasses.dim; ) | |
272 { BaseClass *b = (BaseClass *)baseclasses.data[i]; | |
273 b->type = b->type->semantic(loc, sc); | |
274 Type *tb = b->type->toBasetype(); | |
275 | |
276 if (tb->ty == Ttuple) | |
277 { TypeTuple *tup = (TypeTuple *)tb; | |
278 enum PROT protection = b->protection; | |
279 baseclasses.remove(i); | |
280 size_t dim = Argument::dim(tup->arguments); | |
281 for (size_t j = 0; j < dim; j++) | |
282 { Argument *arg = Argument::getNth(tup->arguments, j); | |
283 b = new BaseClass(arg->type, protection); | |
284 baseclasses.insert(i + j, b); | |
285 } | |
286 } | |
287 else | |
288 i++; | |
289 } | |
290 | |
291 // See if there's a base class as first in baseclasses[] | |
292 if (baseclasses.dim) | |
293 { TypeClass *tc; | |
294 BaseClass *b; | |
295 Type *tb; | |
296 | |
297 b = (BaseClass *)baseclasses.data[0]; | |
298 //b->type = b->type->semantic(loc, sc); | |
299 tb = b->type->toBasetype(); | |
300 if (tb->ty != Tclass) | |
301 { error("base type must be class or interface, not %s", b->type->toChars()); | |
302 baseclasses.remove(0); | |
303 } | |
304 else | |
305 { | |
306 tc = (TypeClass *)(tb); | |
336 | 307 |
159 | 308 if (tc->sym->isDeprecated()) |
309 { | |
310 if (!isDeprecated()) | |
311 { | |
312 // Deriving from deprecated class makes this one deprecated too | |
313 isdeprecated = 1; | |
314 | |
315 tc->checkDeprecated(loc, sc); | |
316 } | |
317 } | |
318 | |
319 if (tc->sym->isInterfaceDeclaration()) | |
320 ; | |
321 else | |
322 { | |
323 for (ClassDeclaration *cdb = tc->sym; cdb; cdb = cdb->baseClass) | |
324 { | |
325 if (cdb == this) | |
326 { | |
327 error("circular inheritance"); | |
328 baseclasses.remove(0); | |
329 goto L7; | |
330 } | |
331 } | |
332 if (!tc->sym->symtab || tc->sym->scope || tc->sym->sizeok == 0) | |
333 { | |
334 //error("forward reference of base class %s", baseClass->toChars()); | |
335 // Forward reference of base class, try again later | |
336 //printf("\ttry later, forward reference of base class %s\n", tc->sym->toChars()); | |
337 scope = scx ? scx : new Scope(*sc); | |
338 scope->setNoFree(); | |
339 scope->module->addDeferredSemantic(this); | |
340 return; | |
341 } | |
342 else | |
343 { baseClass = tc->sym; | |
344 b->base = baseClass; | |
345 } | |
346 L7: ; | |
347 } | |
348 } | |
349 } | |
350 | |
351 // Treat the remaining entries in baseclasses as interfaces | |
352 // Check for errors, handle forward references | |
353 for (i = (baseClass ? 1 : 0); i < baseclasses.dim; ) | |
354 { TypeClass *tc; | |
355 BaseClass *b; | |
356 Type *tb; | |
357 | |
358 b = (BaseClass *)baseclasses.data[i]; | |
359 b->type = b->type->semantic(loc, sc); | |
360 tb = b->type->toBasetype(); | |
361 if (tb->ty == Tclass) | |
362 tc = (TypeClass *)tb; | |
363 else | |
364 tc = NULL; | |
365 if (!tc || !tc->sym->isInterfaceDeclaration()) | |
366 { | |
367 error("base type must be interface, not %s", b->type->toChars()); | |
368 baseclasses.remove(i); | |
369 continue; | |
370 } | |
371 else | |
372 { | |
373 if (tc->sym->isDeprecated()) | |
374 { | |
375 if (!isDeprecated()) | |
376 { | |
377 // Deriving from deprecated class makes this one deprecated too | |
378 isdeprecated = 1; | |
379 | |
380 tc->checkDeprecated(loc, sc); | |
381 } | |
382 } | |
383 | |
384 // Check for duplicate interfaces | |
385 for (size_t j = (baseClass ? 1 : 0); j < i; j++) | |
386 { | |
387 BaseClass *b2 = (BaseClass *)baseclasses.data[j]; | |
388 if (b2->base == tc->sym) | |
389 error("inherits from duplicate interface %s", b2->base->toChars()); | |
390 } | |
391 | |
392 b->base = tc->sym; | |
393 if (!b->base->symtab || b->base->scope) | |
394 { | |
395 //error("forward reference of base class %s", baseClass->toChars()); | |
396 // Forward reference of base, try again later | |
397 //printf("\ttry later, forward reference of base %s\n", baseClass->toChars()); | |
398 scope = scx ? scx : new Scope(*sc); | |
399 scope->setNoFree(); | |
400 scope->module->addDeferredSemantic(this); | |
401 return; | |
402 } | |
403 } | |
404 i++; | |
405 } | |
406 | |
407 | |
408 // If no base class, and this is not an Object, use Object as base class | |
409 if (!baseClass && ident != Id::Object) | |
410 { | |
411 // BUG: what if Object is redefined in an inner scope? | |
412 Type *tbase = new TypeIdentifier(0, Id::Object); | |
413 BaseClass *b; | |
414 TypeClass *tc; | |
415 Type *bt; | |
416 | |
417 if (!object) | |
418 { | |
419 error("missing or corrupt object.d"); | |
420 fatal(); | |
421 } | |
422 bt = tbase->semantic(loc, sc)->toBasetype(); | |
423 b = new BaseClass(bt, PROTpublic); | |
424 baseclasses.shift(b); | |
425 assert(b->type->ty == Tclass); | |
426 tc = (TypeClass *)(b->type); | |
427 baseClass = tc->sym; | |
428 assert(!baseClass->isInterfaceDeclaration()); | |
429 b->base = baseClass; | |
430 } | |
431 | |
432 interfaces_dim = baseclasses.dim; | |
433 interfaces = (BaseClass **)baseclasses.data; | |
434 | |
435 | |
436 if (baseClass) | |
437 { | |
438 if (baseClass->storage_class & STCfinal) | |
439 error("cannot inherit from final class %s", baseClass->toChars()); | |
440 | |
441 interfaces_dim--; | |
442 interfaces++; | |
443 | |
444 // Copy vtbl[] from base class | |
445 vtbl.setDim(baseClass->vtbl.dim); | |
446 memcpy(vtbl.data, baseClass->vtbl.data, sizeof(void *) * vtbl.dim); | |
447 | |
448 // Inherit properties from base class | |
449 com = baseClass->isCOMclass(); | |
450 isauto = baseClass->isauto; | |
451 vthis = baseClass->vthis; | |
452 } | |
453 else | |
454 { | |
455 // No base class, so this is the root of the class hierarchy | |
456 vtbl.setDim(0); | |
457 vtbl.push(this); // leave room for classinfo as first member | |
458 } | |
459 | |
460 protection = sc->protection; | |
461 storage_class |= sc->stc; | |
462 | |
463 if (sizeok == 0) | |
464 { | |
465 interfaceSemantic(sc); | |
466 | |
467 for (i = 0; i < members->dim; i++) | |
468 { | |
469 Dsymbol *s = (Dsymbol *)members->data[i]; | |
470 s->addMember(sc, this, 1); | |
471 } | |
472 | |
473 /* If this is a nested class, add the hidden 'this' | |
474 * member which is a pointer to the enclosing scope. | |
475 */ | |
476 if (vthis) // if inheriting from nested class | |
477 { // Use the base class's 'this' member | |
478 isnested = 1; | |
479 if (storage_class & STCstatic) | |
480 error("static class cannot inherit from nested class %s", baseClass->toChars()); | |
481 if (toParent2() != baseClass->toParent2()) | |
658
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482 { |
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483 if (toParent2()) |
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484 { |
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485 error("is nested within %s, but super class %s is nested within %s", |
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486 toParent2()->toChars(), |
159 | 487 baseClass->toChars(), |
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488 baseClass->toParent2()->toChars()); |
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489 } |
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490 else |
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491 { |
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492 error("is not nested, but super class %s is nested within %s", |
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493 baseClass->toChars(), |
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494 baseClass->toParent2()->toChars()); |
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495 } |
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496 isnested = 0; |
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497 } |
159 | 498 } |
499 else if (!(storage_class & STCstatic)) | |
500 { Dsymbol *s = toParent2(); | |
501 if (s) | |
502 { | |
503 ClassDeclaration *cd = s->isClassDeclaration(); | |
504 FuncDeclaration *fd = s->isFuncDeclaration(); | |
505 | |
506 | |
507 if (cd || fd) | |
508 { isnested = 1; | |
509 Type *t; | |
510 if (cd) | |
511 t = cd->type; | |
512 else if (fd) | |
513 { AggregateDeclaration *ad = fd->isMember2(); | |
514 if (ad) | |
515 t = ad->handle; | |
516 else | |
517 { | |
518 t = new TypePointer(Type::tvoid); | |
519 t = t->semantic(0, sc); | |
520 } | |
521 } | |
522 else | |
523 assert(0); | |
524 assert(!vthis); | |
525 vthis = new ThisDeclaration(t); | |
526 members->push(vthis); | |
527 } | |
528 } | |
529 } | |
530 } | |
531 | |
532 if (storage_class & (STCauto | STCscope)) | |
533 isauto = 1; | |
534 if (storage_class & STCabstract) | |
535 isabstract = 1; | |
536 | |
537 sc = sc->push(this); | |
538 sc->stc &= ~(STCfinal | STCauto | STCscope | STCstatic | | |
539 STCabstract | STCdeprecated); | |
540 sc->parent = this; | |
541 sc->inunion = 0; | |
542 | |
543 if (isCOMclass()) | |
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544 { |
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545 #if _WIN32 |
159 | 546 sc->linkage = LINKwindows; |
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547 #else |
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548 /* This enables us to use COM objects under Linux and |
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549 * work with things like XPCOM |
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550 */ |
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551 sc->linkage = LINKc; |
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552 #endif |
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553 } |
159 | 554 sc->protection = PROTpublic; |
555 sc->explicitProtection = 0; | |
556 sc->structalign = 8; | |
557 structalign = sc->structalign; | |
558 if (baseClass) | |
559 { sc->offset = baseClass->structsize; | |
560 alignsize = baseClass->alignsize; | |
561 // if (isnested) | |
562 // sc->offset += PTRSIZE; // room for uplevel context pointer | |
563 } | |
564 else | |
1195
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parents:
1146
diff
changeset
|
565 { sc->offset = PTRSIZE * 2; // allow room for vptr[] and monitor |
809
69a5e4a6fc0f
Changed some hardcoded offset/alignment for classes in DMD, broke offsets for 64bits.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
658
diff
changeset
|
566 alignsize = PTRSIZE; |
159 | 567 } |
568 structsize = sc->offset; | |
569 Scope scsave = *sc; | |
570 int members_dim = members->dim; | |
571 sizeok = 0; | |
572 for (i = 0; i < members_dim; i++) | |
573 { | |
574 Dsymbol *s = (Dsymbol *)members->data[i]; | |
575 s->semantic(sc); | |
576 } | |
577 | |
578 if (sizeok == 2) | |
579 { // semantic() failed because of forward references. | |
580 // Unwind what we did, and defer it for later | |
581 fields.setDim(0); | |
582 structsize = 0; | |
583 alignsize = 0; | |
584 structalign = 0; | |
585 | |
586 sc = sc->pop(); | |
587 | |
588 scope = scx ? scx : new Scope(*sc); | |
589 scope->setNoFree(); | |
590 scope->module->addDeferredSemantic(this); | |
591 | |
336 | 592 //printf("\tsemantic('%s') failed due to forward references\n", toChars()); |
159 | 593 return; |
594 } | |
595 | |
596 //printf("\tsemantic('%s') successful\n", toChars()); | |
597 | |
598 structsize = sc->offset; | |
599 //members->print(); | |
600 | |
601 /* Look for special member functions. | |
602 * They must be in this class, not in a base class. | |
603 */ | |
604 ctor = (CtorDeclaration *)search(0, Id::ctor, 0); | |
658
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Upgraded frontend to DMD 1.035
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
336
diff
changeset
|
605 if (ctor && (ctor->toParent() != this || !ctor->isCtorDeclaration())) |
159 | 606 ctor = NULL; |
607 | |
608 // dtor = (DtorDeclaration *)search(Id::dtor, 0); | |
609 // if (dtor && dtor->toParent() != this) | |
610 // dtor = NULL; | |
611 | |
612 // inv = (InvariantDeclaration *)search(Id::classInvariant, 0); | |
613 // if (inv && inv->toParent() != this) | |
614 // inv = NULL; | |
615 | |
616 // Can be in base class | |
617 aggNew = (NewDeclaration *)search(0, Id::classNew, 0); | |
618 aggDelete = (DeleteDeclaration *)search(0, Id::classDelete, 0); | |
619 | |
620 // If this class has no constructor, but base class does, create | |
621 // a constructor: | |
622 // this() { } | |
623 if (!ctor && baseClass && baseClass->ctor) | |
624 { | |
625 //printf("Creating default this(){} for class %s\n", toChars()); | |
336 | 626 ctor = new CtorDeclaration(loc, 0, NULL, 0); |
159 | 627 ctor->fbody = new CompoundStatement(0, new Statements()); |
628 members->push(ctor); | |
629 ctor->addMember(sc, this, 1); | |
630 *sc = scsave; // why? What about sc->nofree? | |
631 sc->offset = structsize; | |
632 ctor->semantic(sc); | |
633 defaultCtor = ctor; | |
634 } | |
635 | |
636 #if 0 | |
637 if (baseClass) | |
638 { if (!aggDelete) | |
639 aggDelete = baseClass->aggDelete; | |
640 if (!aggNew) | |
641 aggNew = baseClass->aggNew; | |
642 } | |
643 #endif | |
644 | |
645 // Allocate instance of each new interface | |
646 for (i = 0; i < vtblInterfaces->dim; i++) | |
647 { | |
648 BaseClass *b = (BaseClass *)vtblInterfaces->data[i]; | |
649 unsigned thissize = PTRSIZE; | |
650 | |
651 alignmember(structalign, thissize, &sc->offset); | |
652 assert(b->offset == 0); | |
653 b->offset = sc->offset; | |
654 | |
655 // Take care of single inheritance offsets | |
656 while (b->baseInterfaces_dim) | |
657 { | |
658 b = &b->baseInterfaces[0]; | |
659 b->offset = sc->offset; | |
660 } | |
661 | |
662 sc->offset += thissize; | |
663 if (alignsize < thissize) | |
664 alignsize = thissize; | |
665 } | |
666 structsize = sc->offset; | |
667 sizeok = 1; | |
668 Module::dprogress++; | |
669 | |
670 dtor = buildDtor(sc); | |
671 | |
672 sc->pop(); | |
673 | |
674 #if 0 // Do not call until toObjfile() because of forward references | |
675 // Fill in base class vtbl[]s | |
676 for (i = 0; i < vtblInterfaces->dim; i++) | |
677 { | |
678 BaseClass *b = (BaseClass *)vtblInterfaces->data[i]; | |
679 | |
680 //b->fillVtbl(this, &b->vtbl, 1); | |
681 } | |
682 #endif | |
683 //printf("-ClassDeclaration::semantic(%s), type = %p\n", toChars(), type); | |
684 } | |
685 | |
686 void ClassDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
687 { | |
688 if (!isAnonymous()) | |
689 { | |
690 buf->printf("%s ", kind()); | |
691 buf->writestring(toChars()); | |
692 if (baseclasses.dim) | |
693 buf->writestring(" : "); | |
694 } | |
695 for (int i = 0; i < baseclasses.dim; i++) | |
696 { | |
697 BaseClass *b = (BaseClass *)baseclasses.data[i]; | |
698 | |
699 if (i) | |
700 buf->writeByte(','); | |
701 //buf->writestring(b->base->ident->toChars()); | |
702 b->type->toCBuffer(buf, NULL, hgs); | |
703 } | |
704 buf->writenl(); | |
705 buf->writeByte('{'); | |
706 buf->writenl(); | |
707 for (int i = 0; i < members->dim; i++) | |
708 { | |
709 Dsymbol *s = (Dsymbol *)members->data[i]; | |
710 | |
711 buf->writestring(" "); | |
712 s->toCBuffer(buf, hgs); | |
713 } | |
714 buf->writestring("}"); | |
715 buf->writenl(); | |
716 } | |
717 | |
718 #if 0 | |
719 void ClassDeclaration::defineRef(Dsymbol *s) | |
720 { | |
721 ClassDeclaration *cd; | |
722 | |
723 AggregateDeclaration::defineRef(s); | |
724 cd = s->isClassDeclaration(); | |
725 baseType = cd->baseType; | |
726 cd->baseType = NULL; | |
727 } | |
728 #endif | |
729 | |
730 /********************************************* | |
731 * Determine if 'this' is a base class of cd. | |
732 * This is used to detect circular inheritance only. | |
733 */ | |
734 | |
735 int ClassDeclaration::isBaseOf2(ClassDeclaration *cd) | |
736 { | |
737 if (!cd) | |
738 return 0; | |
739 //printf("ClassDeclaration::isBaseOf2(this = '%s', cd = '%s')\n", toChars(), cd->toChars()); | |
740 for (int i = 0; i < cd->baseclasses.dim; i++) | |
741 { BaseClass *b = (BaseClass *)cd->baseclasses.data[i]; | |
742 | |
743 if (b->base == this || isBaseOf2(b->base)) | |
744 return 1; | |
745 } | |
746 return 0; | |
747 } | |
748 | |
749 /******************************************* | |
750 * Determine if 'this' is a base class of cd. | |
751 */ | |
752 | |
753 int ClassDeclaration::isBaseOf(ClassDeclaration *cd, int *poffset) | |
754 { | |
755 //printf("ClassDeclaration::isBaseOf(this = '%s', cd = '%s')\n", toChars(), cd->toChars()); | |
756 if (poffset) | |
757 *poffset = 0; | |
758 while (cd) | |
759 { | |
760 if (this == cd->baseClass) | |
761 return 1; | |
762 | |
763 /* cd->baseClass might not be set if cd is forward referenced. | |
764 */ | |
765 if (!cd->baseClass && cd->baseclasses.dim && !cd->isInterfaceDeclaration()) | |
766 { | |
767 cd->error("base class is forward referenced by %s", toChars()); | |
768 } | |
769 | |
770 cd = cd->baseClass; | |
771 } | |
772 return 0; | |
773 } | |
774 | |
775 Dsymbol *ClassDeclaration::search(Loc loc, Identifier *ident, int flags) | |
776 { | |
777 Dsymbol *s; | |
778 | |
779 //printf("%s.ClassDeclaration::search('%s')\n", toChars(), ident->toChars()); | |
780 if (scope) | |
781 semantic(scope); | |
782 | |
783 if (!members || !symtab || scope) | |
784 { error("is forward referenced when looking for '%s'", ident->toChars()); | |
785 //*(char*)0=0; | |
786 return NULL; | |
787 } | |
788 | |
789 s = ScopeDsymbol::search(loc, ident, flags); | |
790 if (!s) | |
791 { | |
792 // Search bases classes in depth-first, left to right order | |
793 | |
794 int i; | |
795 | |
796 for (i = 0; i < baseclasses.dim; i++) | |
797 { | |
798 BaseClass *b = (BaseClass *)baseclasses.data[i]; | |
799 | |
800 if (b->base) | |
801 { | |
802 if (!b->base->symtab) | |
803 error("base %s is forward referenced", b->base->ident->toChars()); | |
804 else | |
805 { | |
806 s = b->base->search(loc, ident, flags); | |
807 if (s == this) // happens if s is nested in this and derives from this | |
808 s = NULL; | |
809 else if (s) | |
810 break; | |
811 } | |
812 } | |
813 } | |
814 } | |
815 return s; | |
816 } | |
817 | |
818 /********************************************************** | |
819 * fd is in the vtbl[] for this class. | |
820 * Return 1 if function is hidden (not findable through search). | |
821 */ | |
822 | |
336 | 823 #if DMDV2 |
159 | 824 int isf(void *param, FuncDeclaration *fd) |
825 { | |
826 //printf("param = %p, fd = %p %s\n", param, fd, fd->toChars()); | |
827 return param == fd; | |
828 } | |
829 | |
830 int ClassDeclaration::isFuncHidden(FuncDeclaration *fd) | |
831 { | |
832 //printf("ClassDeclaration::isFuncHidden(%s)\n", fd->toChars()); | |
833 Dsymbol *s = search(0, fd->ident, 4|2); | |
834 if (!s) | |
835 { //printf("not found\n"); | |
836 /* Because, due to a hack, if there are multiple definitions | |
837 * of fd->ident, NULL is returned. | |
838 */ | |
839 return 0; | |
840 } | |
841 FuncDeclaration *fdstart = s->toAlias()->isFuncDeclaration(); | |
842 //printf("%s fdstart = %p\n", s->kind(), fdstart); | |
843 return !overloadApply(fdstart, &isf, fd); | |
844 } | |
845 #endif | |
846 | |
847 /**************** | |
848 * Find virtual function matching identifier and type. | |
849 * Used to build virtual function tables for interface implementations. | |
850 */ | |
851 | |
852 FuncDeclaration *ClassDeclaration::findFunc(Identifier *ident, TypeFunction *tf) | |
853 { | |
854 //printf("ClassDeclaration::findFunc(%s, %s) %s\n", ident->toChars(), tf->toChars(), toChars()); | |
855 | |
856 ClassDeclaration *cd = this; | |
857 Array *vtbl = &cd->vtbl; | |
858 while (1) | |
859 { | |
860 for (size_t i = 0; i < vtbl->dim; i++) | |
861 { | |
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
875
diff
changeset
|
862 FuncDeclaration *fd = ((Dsymbol*)vtbl->data[i])->isFuncDeclaration(); |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
875
diff
changeset
|
863 if (!fd) |
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
875
diff
changeset
|
864 continue; // the first entry might be a ClassInfo |
159 | 865 |
866 //printf("\t[%d] = %s\n", i, fd->toChars()); | |
867 if (ident == fd->ident && | |
868 //tf->equals(fd->type) | |
869 fd->type->covariant(tf) == 1 | |
870 ) | |
871 { //printf("\t\tfound\n"); | |
872 return fd; | |
873 } | |
874 //else printf("\t\t%d\n", fd->type->covariant(tf)); | |
875 } | |
876 if (!cd) | |
877 break; | |
878 vtbl = &cd->vtblFinal; | |
879 cd = cd->baseClass; | |
880 } | |
881 | |
882 return NULL; | |
883 } | |
884 | |
885 void ClassDeclaration::interfaceSemantic(Scope *sc) | |
336 | 886 { |
159 | 887 vtblInterfaces = new BaseClasses(); |
888 vtblInterfaces->reserve(interfaces_dim); | |
889 | |
336 | 890 for (size_t i = 0; i < interfaces_dim; i++) |
159 | 891 { |
892 BaseClass *b = interfaces[i]; | |
893 | |
894 // If this is an interface, and it derives from a COM interface, | |
895 // then this is a COM interface too. | |
896 if (b->base->isCOMinterface()) | |
897 com = 1; | |
898 | |
899 vtblInterfaces->push(b); | |
900 b->copyBaseInterfaces(vtblInterfaces); | |
901 } | |
902 } | |
903 | |
904 /**************************************** | |
905 */ | |
906 | |
907 int ClassDeclaration::isCOMclass() | |
908 { | |
909 return com; | |
910 } | |
911 | |
912 int ClassDeclaration::isCOMinterface() | |
913 { | |
914 return 0; | |
915 } | |
916 | |
917 | |
918 /**************************************** | |
919 */ | |
920 | |
921 int ClassDeclaration::isAbstract() | |
922 { | |
923 if (isabstract) | |
924 return TRUE; | |
925 for (int i = 1; i < vtbl.dim; i++) | |
926 { | |
927 FuncDeclaration *fd = ((Dsymbol *)vtbl.data[i])->isFuncDeclaration(); | |
928 | |
929 //printf("\tvtbl[%d] = %p\n", i, fd); | |
930 if (!fd || fd->isAbstract()) | |
931 { | |
932 isabstract |= 1; | |
933 return TRUE; | |
934 } | |
935 } | |
936 return FALSE; | |
937 } | |
938 | |
336 | 939 |
159 | 940 /**************************************** |
941 * Returns !=0 if there's an extra member which is the 'this' | |
942 * pointer to the enclosing context (enclosing class or function) | |
943 */ | |
944 | |
945 int ClassDeclaration::isNested() | |
946 { | |
947 return isnested; | |
948 } | |
949 | |
950 /**************************************** | |
951 * Determine if slot 0 of the vtbl[] is reserved for something else. | |
952 * For class objects, yes, this is where the classinfo ptr goes. | |
953 * For COM interfaces, no. | |
954 * For non-COM interfaces, yes, this is where the Interface ptr goes. | |
955 */ | |
956 | |
957 int ClassDeclaration::vtblOffset() | |
958 { | |
959 return 1; | |
960 } | |
961 | |
962 /**************************************** | |
963 */ | |
964 | |
336 | 965 const char *ClassDeclaration::kind() |
159 | 966 { |
967 return "class"; | |
968 } | |
969 | |
970 /**************************************** | |
971 */ | |
972 | |
973 void ClassDeclaration::addLocalClass(ClassDeclarations *aclasses) | |
974 { | |
975 aclasses->push(this); | |
976 } | |
977 | |
978 /********************************* InterfaceDeclaration ****************************/ | |
979 | |
980 InterfaceDeclaration::InterfaceDeclaration(Loc loc, Identifier *id, BaseClasses *baseclasses) | |
981 : ClassDeclaration(loc, id, baseclasses) | |
982 { | |
983 com = 0; | |
984 if (id == Id::IUnknown) // IUnknown is the root of all COM objects | |
985 com = 1; | |
986 } | |
987 | |
988 Dsymbol *InterfaceDeclaration::syntaxCopy(Dsymbol *s) | |
989 { | |
990 InterfaceDeclaration *id; | |
991 | |
992 if (s) | |
993 id = (InterfaceDeclaration *)s; | |
994 else | |
995 id = new InterfaceDeclaration(loc, ident, NULL); | |
996 | |
997 ClassDeclaration::syntaxCopy(id); | |
998 return id; | |
999 } | |
1000 | |
1001 void InterfaceDeclaration::semantic(Scope *sc) | |
1002 { int i; | |
1003 | |
1004 //printf("InterfaceDeclaration::semantic(%s), type = %p\n", toChars(), type); | |
1005 if (inuse) | |
1006 return; | |
1007 if (!scope) | |
1008 { type = type->semantic(loc, sc); | |
1009 handle = handle->semantic(loc, sc); | |
1010 } | |
1011 if (!members) // if forward reference | |
1012 { //printf("\tinterface '%s' is forward referenced\n", toChars()); | |
1013 return; | |
1014 } | |
1015 if (symtab) // if already done | |
1016 { if (!scope) | |
1017 return; | |
1018 } | |
1019 else | |
1020 symtab = new DsymbolTable(); | |
1021 | |
1022 Scope *scx = NULL; | |
1023 if (scope) | |
1024 { sc = scope; | |
1025 scx = scope; // save so we don't make redundant copies | |
1026 scope = NULL; | |
1027 } | |
1028 | |
1029 if (sc->stc & STCdeprecated) | |
1030 { | |
1031 isdeprecated = 1; | |
1032 } | |
1033 | |
1034 // Expand any tuples in baseclasses[] | |
1035 for (i = 0; i < baseclasses.dim; ) | |
1036 { BaseClass *b = (BaseClass *)baseclasses.data[0]; | |
1037 b->type = b->type->semantic(loc, sc); | |
1038 Type *tb = b->type->toBasetype(); | |
1039 | |
1040 if (tb->ty == Ttuple) | |
1041 { TypeTuple *tup = (TypeTuple *)tb; | |
1042 enum PROT protection = b->protection; | |
1043 baseclasses.remove(i); | |
1044 size_t dim = Argument::dim(tup->arguments); | |
1045 for (size_t j = 0; j < dim; j++) | |
1046 { Argument *arg = Argument::getNth(tup->arguments, j); | |
1047 b = new BaseClass(arg->type, protection); | |
1048 baseclasses.insert(i + j, b); | |
1049 } | |
1050 } | |
1051 else | |
1052 i++; | |
1053 } | |
1054 | |
1055 // Check for errors, handle forward references | |
1056 for (i = 0; i < baseclasses.dim; ) | |
1057 { TypeClass *tc; | |
1058 BaseClass *b; | |
1059 Type *tb; | |
1060 | |
1061 b = (BaseClass *)baseclasses.data[i]; | |
1062 b->type = b->type->semantic(loc, sc); | |
1063 tb = b->type->toBasetype(); | |
1064 if (tb->ty == Tclass) | |
1065 tc = (TypeClass *)tb; | |
1066 else | |
1067 tc = NULL; | |
1068 if (!tc || !tc->sym->isInterfaceDeclaration()) | |
1069 { | |
1070 error("base type must be interface, not %s", b->type->toChars()); | |
1071 baseclasses.remove(i); | |
1072 continue; | |
1073 } | |
1074 else | |
1075 { | |
1076 // Check for duplicate interfaces | |
1077 for (size_t j = 0; j < i; j++) | |
1078 { | |
1079 BaseClass *b2 = (BaseClass *)baseclasses.data[j]; | |
1080 if (b2->base == tc->sym) | |
1081 error("inherits from duplicate interface %s", b2->base->toChars()); | |
1082 } | |
1083 | |
1084 b->base = tc->sym; | |
1085 if (b->base == this || isBaseOf2(b->base)) | |
1086 { | |
1087 error("circular inheritance of interface"); | |
1088 baseclasses.remove(i); | |
1089 continue; | |
1090 } | |
1091 if (!b->base->symtab || b->base->scope || b->base->inuse) | |
1092 { | |
1093 //error("forward reference of base class %s", baseClass->toChars()); | |
1094 // Forward reference of base, try again later | |
1095 //printf("\ttry later, forward reference of base %s\n", b->base->toChars()); | |
1096 scope = scx ? scx : new Scope(*sc); | |
1097 scope->setNoFree(); | |
1098 scope->module->addDeferredSemantic(this); | |
1099 return; | |
1100 } | |
1101 } | |
1102 i++; | |
1103 } | |
1104 | |
1105 interfaces_dim = baseclasses.dim; | |
1106 interfaces = (BaseClass **)baseclasses.data; | |
1107 | |
1108 interfaceSemantic(sc); | |
1109 | |
1110 if (vtblOffset()) | |
1111 vtbl.push(this); // leave room at vtbl[0] for classinfo | |
1112 | |
1113 // Cat together the vtbl[]'s from base interfaces | |
1114 for (i = 0; i < interfaces_dim; i++) | |
1115 { BaseClass *b = interfaces[i]; | |
1116 | |
1117 // Skip if b has already appeared | |
1118 for (int k = 0; k < i; k++) | |
1119 { | |
1120 if (b == interfaces[i]) | |
1121 goto Lcontinue; | |
1122 } | |
1123 | |
1124 // Copy vtbl[] from base class | |
1125 if (b->base->vtblOffset()) | |
1126 { int d = b->base->vtbl.dim; | |
1127 if (d > 1) | |
1128 { | |
1129 vtbl.reserve(d - 1); | |
1130 for (int j = 1; j < d; j++) | |
1131 vtbl.push(b->base->vtbl.data[j]); | |
1132 } | |
1133 } | |
1134 else | |
1135 { | |
1136 vtbl.append(&b->base->vtbl); | |
1137 } | |
1138 | |
1139 Lcontinue: | |
1140 ; | |
1141 } | |
1142 | |
1143 for (i = 0; i < members->dim; i++) | |
1144 { | |
1145 Dsymbol *s = (Dsymbol *)members->data[i]; | |
1146 s->addMember(sc, this, 1); | |
1147 } | |
1148 | |
1149 sc = sc->push(this); | |
1150 sc->parent = this; | |
1151 if (isCOMinterface()) | |
1152 sc->linkage = LINKwindows; | |
1153 sc->structalign = 8; | |
1154 structalign = sc->structalign; | |
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
1155 sc->offset = PTRSIZE * 2; |
159 | 1156 inuse++; |
1157 for (i = 0; i < members->dim; i++) | |
1158 { | |
1159 Dsymbol *s = (Dsymbol *)members->data[i]; | |
1160 s->semantic(sc); | |
1161 } | |
1162 inuse--; | |
1163 //members->print(); | |
1164 sc->pop(); | |
1165 //printf("-InterfaceDeclaration::semantic(%s), type = %p\n", toChars(), type); | |
1166 } | |
1167 | |
1168 | |
1169 /******************************************* | |
1170 * Determine if 'this' is a base class of cd. | |
1171 * (Actually, if it is an interface supported by cd) | |
1172 * Output: | |
1173 * *poffset offset to start of class | |
1174 * OFFSET_RUNTIME must determine offset at runtime | |
1175 * Returns: | |
1176 * 0 not a base | |
1177 * 1 is a base | |
1178 */ | |
1179 | |
1180 int InterfaceDeclaration::isBaseOf(ClassDeclaration *cd, int *poffset) | |
1181 { | |
1182 unsigned j; | |
1183 | |
1184 //printf("%s.InterfaceDeclaration::isBaseOf(cd = '%s')\n", toChars(), cd->toChars()); | |
1185 assert(!baseClass); | |
1186 for (j = 0; j < cd->interfaces_dim; j++) | |
1187 { | |
1188 BaseClass *b = cd->interfaces[j]; | |
1189 | |
1190 //printf("\tbase %s\n", b->base->toChars()); | |
1191 if (this == b->base) | |
1192 { | |
1193 //printf("\tfound at offset %d\n", b->offset); | |
1194 if (poffset) | |
1195 { *poffset = b->offset; | |
1196 if (j && cd->isInterfaceDeclaration()) | |
1197 *poffset = OFFSET_RUNTIME; | |
1198 } | |
1199 return 1; | |
1200 } | |
1201 if (isBaseOf(b, poffset)) | |
1202 { if (j && poffset && cd->isInterfaceDeclaration()) | |
1203 *poffset = OFFSET_RUNTIME; | |
1204 return 1; | |
1205 } | |
1206 } | |
1207 | |
1208 if (cd->baseClass && isBaseOf(cd->baseClass, poffset)) | |
1209 return 1; | |
1210 | |
1211 if (poffset) | |
1212 *poffset = 0; | |
1213 return 0; | |
1214 } | |
1215 | |
1216 | |
1217 int InterfaceDeclaration::isBaseOf(BaseClass *bc, int *poffset) | |
1218 { | |
1219 //printf("%s.InterfaceDeclaration::isBaseOf(bc = '%s')\n", toChars(), bc->base->toChars()); | |
1220 for (unsigned j = 0; j < bc->baseInterfaces_dim; j++) | |
1221 { | |
1222 BaseClass *b = &bc->baseInterfaces[j]; | |
1223 | |
1224 if (this == b->base) | |
1225 { | |
1226 if (poffset) | |
1227 { *poffset = b->offset; | |
1228 } | |
1229 return 1; | |
1230 } | |
1231 if (isBaseOf(b, poffset)) | |
1232 { | |
1233 return 1; | |
1234 } | |
1235 } | |
1236 if (poffset) | |
1237 *poffset = 0; | |
1238 return 0; | |
1239 } | |
1240 | |
1241 /**************************************** | |
1242 * Determine if slot 0 of the vtbl[] is reserved for something else. | |
1243 * For class objects, yes, this is where the ClassInfo ptr goes. | |
1244 * For COM interfaces, no. | |
1245 * For non-COM interfaces, yes, this is where the Interface ptr goes. | |
1246 */ | |
1247 | |
1248 int InterfaceDeclaration::vtblOffset() | |
1249 { | |
1250 if (isCOMinterface()) | |
1251 return 0; | |
1252 return 1; | |
1253 } | |
1254 | |
1255 int InterfaceDeclaration::isCOMinterface() | |
1256 { | |
1257 return com; | |
1258 } | |
1259 | |
1260 /******************************************* | |
1261 */ | |
1262 | |
336 | 1263 const char *InterfaceDeclaration::kind() |
159 | 1264 { |
1265 return "interface"; | |
1266 } | |
1267 | |
1268 | |
1269 /******************************** BaseClass *****************************/ | |
1270 | |
1271 BaseClass::BaseClass() | |
1272 { | |
1273 memset(this, 0, sizeof(BaseClass)); | |
1274 } | |
1275 | |
1276 BaseClass::BaseClass(Type *type, enum PROT protection) | |
1277 { | |
1278 //printf("BaseClass(this = %p, '%s')\n", this, type->toChars()); | |
1279 this->type = type; | |
1280 this->protection = protection; | |
1281 base = NULL; | |
1282 offset = 0; | |
1283 | |
1284 baseInterfaces_dim = 0; | |
1285 baseInterfaces = NULL; | |
1286 } | |
1287 | |
1288 /**************************************** | |
1289 * Fill in vtbl[] for base class based on member functions of class cd. | |
1290 * Input: | |
1291 * vtbl if !=NULL, fill it in | |
1292 * newinstance !=0 means all entries must be filled in by members | |
1293 * of cd, not members of any base classes of cd. | |
1294 * Returns: | |
1295 * !=0 if any entries were filled in by members of cd (not exclusively | |
1296 * by base classes) | |
1297 */ | |
1298 | |
1299 int BaseClass::fillVtbl(ClassDeclaration *cd, Array *vtbl, int newinstance) | |
1300 { | |
1301 ClassDeclaration *id = base; | |
1302 int j; | |
1303 int result = 0; | |
1304 | |
1305 //printf("BaseClass::fillVtbl(this='%s', cd='%s')\n", base->toChars(), cd->toChars()); | |
1306 if (vtbl) | |
1307 vtbl->setDim(base->vtbl.dim); | |
1308 | |
1309 // first entry is ClassInfo reference | |
1310 for (j = base->vtblOffset(); j < base->vtbl.dim; j++) | |
1311 { | |
1312 FuncDeclaration *ifd = ((Dsymbol *)base->vtbl.data[j])->isFuncDeclaration(); | |
1313 FuncDeclaration *fd; | |
1314 TypeFunction *tf; | |
1315 | |
1316 //printf(" vtbl[%d] is '%s'\n", j, ifd ? ifd->toChars() : "null"); | |
1317 | |
1318 assert(ifd); | |
1319 // Find corresponding function in this class | |
1320 tf = (ifd->type->ty == Tfunction) ? (TypeFunction *)(ifd->type) : NULL; | |
1321 fd = cd->findFunc(ifd->ident, tf); | |
1322 if (fd && !fd->isAbstract()) | |
1323 { | |
1324 //printf(" found\n"); | |
1325 // Check that calling conventions match | |
1326 if (fd->linkage != ifd->linkage) | |
1327 fd->error("linkage doesn't match interface function"); | |
1328 | |
1329 // Check that it is current | |
1330 if (newinstance && | |
1331 fd->toParent() != cd && | |
1332 ifd->toParent() == base) | |
1333 cd->error("interface function %s.%s is not implemented", | |
1334 id->toChars(), ifd->ident->toChars()); | |
1335 | |
1336 if (fd->toParent() == cd) | |
1337 result = 1; | |
1338 } | |
1339 else | |
1340 { | |
1341 //printf(" not found\n"); | |
1342 // BUG: should mark this class as abstract? | |
1343 if (!cd->isAbstract()) | |
1344 cd->error("interface function %s.%s isn't implemented", | |
1345 id->toChars(), ifd->ident->toChars()); | |
1346 fd = NULL; | |
1347 } | |
1348 if (vtbl) | |
1349 vtbl->data[j] = fd; | |
1350 } | |
1351 | |
1352 return result; | |
1353 } | |
1354 | |
1355 void BaseClass::copyBaseInterfaces(BaseClasses *vtblInterfaces) | |
1356 { | |
1357 //printf("+copyBaseInterfaces(), %s\n", base->toChars()); | |
1358 // if (baseInterfaces_dim) | |
1359 // return; | |
1360 | |
1361 baseInterfaces_dim = base->interfaces_dim; | |
1362 baseInterfaces = (BaseClass *)mem.calloc(baseInterfaces_dim, sizeof(BaseClass)); | |
1363 | |
1364 //printf("%s.copyBaseInterfaces()\n", base->toChars()); | |
1365 for (int i = 0; i < baseInterfaces_dim; i++) | |
1366 { | |
1367 BaseClass *b = &baseInterfaces[i]; | |
1368 BaseClass *b2 = base->interfaces[i]; | |
1369 | |
1370 assert(b2->vtbl.dim == 0); // should not be filled yet | |
1371 memcpy(b, b2, sizeof(BaseClass)); | |
1372 | |
1373 if (i) // single inheritance is i==0 | |
1374 vtblInterfaces->push(b); // only need for M.I. | |
1375 b->copyBaseInterfaces(vtblInterfaces); | |
1376 } | |
1377 //printf("-copyBaseInterfaces\n"); | |
1378 } |