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annotate dmd/template.c @ 1638:0de4525a9ed6
Apply workaround for #395 by klickverbot.
| author | Christian Kamm <kamm incasoftware de> |
|---|---|
| date | Mon, 08 Mar 2010 20:06:08 +0100 |
| parents | 44b145be2ef5 |
| children | 9bf06e02070b |
| rev | line source |
|---|---|
| 336 | 1 |
| 2 // Compiler implementation of the D programming language | |
|
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3 // Copyright (c) 1999-2010 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" | |
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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 | |
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34 #if WINDOWS_SEH |
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35 #include <windows.h> |
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36 long __cdecl __ehfilter(LPEXCEPTION_POINTERS ep); |
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37 #endif |
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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 | |
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162 //printf("t1 = %s\n", t1->toChars()); |
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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 } | |
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191 #if DMDV2 |
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192 VarDeclaration *v1 = s1->isVarDeclaration(); |
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193 VarDeclaration *v2 = s2->isVarDeclaration(); |
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194 if (v1 && v2 && v1->storage_class & v2->storage_class & STCmanifest) |
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195 { ExpInitializer *ei1 = v1->init->isExpInitializer(); |
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196 ExpInitializer *ei2 = v2->init->isExpInitializer(); |
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197 if (ei1 && ei2 && !ei1->exp->equals(ei2->exp)) |
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198 goto Lnomatch; |
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199 } |
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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 } | |
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216 //printf("match\n"); |
| 336 | 217 return 1; // match |
| 218 Lnomatch: | |
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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 | |
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268 #if DMDV2 |
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269 Object *objectSyntaxCopy(Object *o) |
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270 { |
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271 if (!o) |
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272 return NULL; |
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273 Type *t = isType(o); |
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274 if (t) |
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275 return t->syntaxCopy(); |
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276 Expression *e = isExpression(o); |
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277 if (e) |
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278 return e->syntaxCopy(); |
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279 return o; |
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280 } |
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281 #endif |
| 336 | 282 |
| 283 | |
| 284 /* ======================== TemplateDeclaration ============================= */ | |
| 285 | |
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286 TemplateDeclaration::TemplateDeclaration(Loc loc, Identifier *id, |
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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; | |
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309 this->constraint = constraint; |
| 336 | 310 this->members = decldefs; |
| 311 this->overnext = NULL; | |
| 312 this->overroot = NULL; | |
| 1587 | 313 this->semanticRun = 0; |
| 336 | 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 } | |
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334 Expression *e = NULL; |
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335 if (constraint) |
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336 e = constraint->syntaxCopy(); |
| 336 | 337 d = Dsymbol::arraySyntaxCopy(members); |
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338 td = new TemplateDeclaration(loc, ident, p, e, d); |
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339 |
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340 #if IN_LLVM |
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341 // LDC |
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342 td->intrinsicName = intrinsicName; |
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343 #endif |
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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 | |
| 1587 | 353 if (semanticRun) |
| 336 | 354 return; // semantic() already run |
| 1587 | 355 semanticRun = 1; |
| 336 | 356 |
| 357 if (sc->func) | |
| 358 { | |
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359 #if DMDV1 |
| 336 | 360 error("cannot declare template at function scope %s", sc->func->toChars()); |
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361 #endif |
| 336 | 362 } |
| 363 | |
| 364 if (/*global.params.useArrayBounds &&*/ sc->module) | |
| 365 { | |
| 366 // Generate this function as it may be used | |
| 367 // when template is instantiated in other modules | |
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368 |
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369 // FIXME: LDC |
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* Moved ir/irsymbol.cpp/h into ir/irdsymbol.cpp/h.
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parents:
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diff
changeset
|
370 //sc->module->toModuleArray(); |
| 336 | 371 } |
| 372 | |
| 373 if (/*global.params.useAssert &&*/ sc->module) | |
| 374 { | |
| 375 // Generate this function as it may be used | |
| 376 // when template is instantiated in other modules | |
|
1146
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* Moved ir/irsymbol.cpp/h into ir/irdsymbol.cpp/h.
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diff
changeset
|
377 |
|
1860414bf3b7
* Moved ir/irsymbol.cpp/h into ir/irdsymbol.cpp/h.
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parents:
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diff
changeset
|
378 // FIXME: LDC |
|
1860414bf3b7
* Moved ir/irsymbol.cpp/h into ir/irdsymbol.cpp/h.
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parents:
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diff
changeset
|
379 //sc->module->toModuleAssert(); |
| 336 | 380 } |
| 381 | |
| 382 /* Remember Scope for later instantiations, but make | |
| 383 * a copy since attributes can change. | |
| 384 */ | |
| 385 this->scope = new Scope(*sc); | |
| 386 this->scope->setNoFree(); | |
| 387 | |
| 388 // Set up scope for parameters | |
| 389 ScopeDsymbol *paramsym = new ScopeDsymbol(); | |
| 390 paramsym->parent = sc->parent; | |
| 391 Scope *paramscope = sc->push(paramsym); | |
| 392 paramscope->parameterSpecialization = 1; | |
|
1103
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- Updated to DMD frontend 1.041.
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diff
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|
393 paramscope->stc = 0; |
| 336 | 394 |
| 395 if (global.params.doDocComments) | |
| 396 { | |
| 397 origParameters = new TemplateParameters(); | |
| 398 origParameters->setDim(parameters->dim); | |
| 399 for (int i = 0; i < parameters->dim; i++) | |
| 400 { | |
| 401 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 402 origParameters->data[i] = (void *)tp->syntaxCopy(); | |
| 403 } | |
| 404 } | |
| 405 | |
| 406 for (int i = 0; i < parameters->dim; i++) | |
| 407 { | |
| 408 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 409 | |
| 410 tp->declareParameter(paramscope); | |
| 411 } | |
| 412 | |
| 413 for (int i = 0; i < parameters->dim; i++) | |
| 414 { | |
| 415 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 416 | |
| 417 tp->semantic(paramscope); | |
| 418 if (i + 1 != parameters->dim && tp->isTemplateTupleParameter()) | |
| 419 error("template tuple parameter must be last one"); | |
| 420 } | |
| 421 | |
| 422 paramscope->pop(); | |
| 423 | |
| 424 if (members) | |
| 425 { | |
| 426 Dsymbol *s; | |
| 427 if (Dsymbol::oneMembers(members, &s)) | |
| 428 { | |
| 429 if (s && s->ident && s->ident->equals(ident)) | |
| 430 { | |
| 431 onemember = s; | |
| 432 s->parent = this; | |
| 433 } | |
| 434 } | |
| 435 } | |
| 436 | |
| 437 /* BUG: should check: | |
| 438 * o no virtual functions or non-static data members of classes | |
| 439 */ | |
| 440 } | |
| 441 | |
| 442 const char *TemplateDeclaration::kind() | |
| 443 { | |
| 444 return (onemember && onemember->isAggregateDeclaration()) | |
| 445 ? onemember->kind() | |
| 446 : (char *)"template"; | |
| 447 } | |
| 448 | |
| 449 /********************************** | |
| 450 * Overload existing TemplateDeclaration 'this' with the new one 's'. | |
| 451 * Return !=0 if successful; i.e. no conflict. | |
| 452 */ | |
| 453 | |
| 454 int TemplateDeclaration::overloadInsert(Dsymbol *s) | |
| 455 { | |
| 456 TemplateDeclaration **pf; | |
| 457 TemplateDeclaration *f; | |
| 458 | |
| 459 #if LOG | |
| 460 printf("TemplateDeclaration::overloadInsert('%s')\n", s->toChars()); | |
| 461 #endif | |
| 462 f = s->isTemplateDeclaration(); | |
| 463 if (!f) | |
| 464 return FALSE; | |
| 465 TemplateDeclaration *pthis = this; | |
| 466 for (pf = &pthis; *pf; pf = &(*pf)->overnext) | |
| 467 { | |
| 468 #if 0 | |
| 469 // Conflict if TemplateParameter's match | |
| 470 // Will get caught anyway later with TemplateInstance, but | |
| 471 // should check it now. | |
| 472 TemplateDeclaration *f2 = *pf; | |
| 473 | |
| 474 if (f->parameters->dim != f2->parameters->dim) | |
| 475 goto Lcontinue; | |
| 476 | |
| 477 for (int i = 0; i < f->parameters->dim; i++) | |
| 478 { TemplateParameter *p1 = (TemplateParameter *)f->parameters->data[i]; | |
| 479 TemplateParameter *p2 = (TemplateParameter *)f2->parameters->data[i]; | |
| 480 | |
| 481 if (!p1->overloadMatch(p2)) | |
| 482 goto Lcontinue; | |
| 483 } | |
| 484 | |
| 485 #if LOG | |
| 486 printf("\tfalse: conflict\n"); | |
| 487 #endif | |
| 488 return FALSE; | |
| 489 | |
| 490 Lcontinue: | |
| 491 ; | |
| 492 #endif | |
| 493 } | |
| 494 | |
| 495 f->overroot = this; | |
| 496 *pf = f; | |
| 497 #if LOG | |
| 498 printf("\ttrue: no conflict\n"); | |
| 499 #endif | |
| 500 return TRUE; | |
| 501 } | |
| 502 | |
| 503 /*************************************** | |
| 504 * Given that ti is an instance of this TemplateDeclaration, | |
| 505 * deduce the types of the parameters to this, and store | |
| 506 * those deduced types in dedtypes[]. | |
| 507 * Input: | |
| 508 * flag 1: don't do semantic() because of dummy types | |
| 509 * 2: don't change types in matchArg() | |
| 510 * Output: | |
| 511 * dedtypes deduced arguments | |
| 512 * Return match level. | |
| 513 */ | |
| 514 | |
| 515 MATCH TemplateDeclaration::matchWithInstance(TemplateInstance *ti, | |
| 516 Objects *dedtypes, int flag) | |
| 517 { MATCH m; | |
| 518 int dedtypes_dim = dedtypes->dim; | |
| 519 | |
| 520 #define LOGM 0 | |
| 521 #if LOGM | |
| 522 printf("\n+TemplateDeclaration::matchWithInstance(this = %s, ti = %s, flag = %d)\n", toChars(), ti->toChars(), flag); | |
| 523 #endif | |
| 524 | |
| 525 #if 0 | |
| 526 printf("dedtypes->dim = %d, parameters->dim = %d\n", dedtypes_dim, parameters->dim); | |
| 527 if (ti->tiargs->dim) | |
| 528 printf("ti->tiargs->dim = %d, [0] = %p\n", | |
| 529 ti->tiargs->dim, | |
| 530 ti->tiargs->data[0]); | |
| 531 #endif | |
| 532 dedtypes->zero(); | |
| 533 | |
| 534 int parameters_dim = parameters->dim; | |
| 535 int variadic = isVariadic() != NULL; | |
| 536 | |
| 537 // If more arguments than parameters, no match | |
| 538 if (ti->tiargs->dim > parameters_dim && !variadic) | |
| 539 { | |
| 540 #if LOGM | |
| 541 printf(" no match: more arguments than parameters\n"); | |
| 542 #endif | |
| 543 return MATCHnomatch; | |
| 544 } | |
| 545 | |
| 546 assert(dedtypes_dim == parameters_dim); | |
| 547 assert(dedtypes_dim >= ti->tiargs->dim || variadic); | |
| 548 | |
| 549 // Set up scope for parameters | |
| 550 assert((size_t)scope > 0x10000); | |
| 551 ScopeDsymbol *paramsym = new ScopeDsymbol(); | |
| 552 paramsym->parent = scope->parent; | |
| 553 Scope *paramscope = scope->push(paramsym); | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
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parents:
1089
diff
changeset
|
554 paramscope->stc = 0; |
| 336 | 555 |
| 556 // Attempt type deduction | |
| 557 m = MATCHexact; | |
| 558 for (int i = 0; i < dedtypes_dim; i++) | |
| 559 { MATCH m2; | |
| 560 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 561 Declaration *sparam; | |
| 562 | |
| 563 //printf("\targument [%d]\n", i); | |
| 564 #if LOGM | |
| 565 //printf("\targument [%d] is %s\n", i, oarg ? oarg->toChars() : "null"); | |
| 566 TemplateTypeParameter *ttp = tp->isTemplateTypeParameter(); | |
| 567 if (ttp) | |
| 568 printf("\tparameter[%d] is %s : %s\n", i, tp->ident->toChars(), ttp->specType ? ttp->specType->toChars() : ""); | |
| 569 #endif | |
| 570 | |
| 571 #if DMDV1 | |
| 572 m2 = tp->matchArg(paramscope, ti->tiargs, i, parameters, dedtypes, &sparam); | |
| 573 #else | |
| 574 m2 = tp->matchArg(paramscope, ti->tiargs, i, parameters, dedtypes, &sparam, (flag & 2) ? 1 : 0); | |
| 575 | |
| 576 #endif | |
| 577 //printf("\tm2 = %d\n", m2); | |
| 578 | |
| 579 if (m2 == MATCHnomatch) | |
| 580 { | |
| 581 #if 0 | |
| 582 printf("\tmatchArg() for parameter %i failed\n", i); | |
| 583 #endif | |
| 584 goto Lnomatch; | |
| 585 } | |
| 586 | |
| 587 if (m2 < m) | |
| 588 m = m2; | |
| 589 | |
| 590 if (!flag) | |
| 591 sparam->semantic(paramscope); | |
| 592 if (!paramscope->insert(sparam)) | |
| 593 goto Lnomatch; | |
| 594 } | |
| 595 | |
| 596 if (!flag) | |
| 597 { | |
|
875
330f999ade44
Merged DMD 1.038
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parents:
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diff
changeset
|
598 /* Any parameter left without a type gets the type of |
|
330f999ade44
Merged DMD 1.038
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664
diff
changeset
|
599 * its corresponding arg |
|
330f999ade44
Merged DMD 1.038
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diff
changeset
|
600 */ |
| 336 | 601 for (int i = 0; i < dedtypes_dim; i++) |
| 602 { | |
| 603 if (!dedtypes->data[i]) | |
| 604 { assert(i < ti->tiargs->dim); | |
| 605 dedtypes->data[i] = ti->tiargs->data[i]; | |
| 606 } | |
| 607 } | |
| 608 } | |
| 609 | |
|
875
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Merged DMD 1.038
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parents:
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diff
changeset
|
610 #if DMDV2 |
|
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Merged DMD 1.038
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diff
changeset
|
611 if (m && constraint && !(flag & 1)) |
|
330f999ade44
Merged DMD 1.038
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parents:
664
diff
changeset
|
612 { /* Check to see if constraint is satisfied. |
|
330f999ade44
Merged DMD 1.038
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parents:
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diff
changeset
|
613 */ |
|
330f999ade44
Merged DMD 1.038
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parents:
664
diff
changeset
|
614 Expression *e = constraint->syntaxCopy(); |
|
330f999ade44
Merged DMD 1.038
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parents:
664
diff
changeset
|
615 paramscope->flags |= SCOPEstaticif; |
|
330f999ade44
Merged DMD 1.038
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parents:
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diff
changeset
|
616 e = e->semantic(paramscope); |
|
330f999ade44
Merged DMD 1.038
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parents:
664
diff
changeset
|
617 e = e->optimize(WANTvalue | WANTinterpret); |
|
330f999ade44
Merged DMD 1.038
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parents:
664
diff
changeset
|
618 if (e->isBool(TRUE)) |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
619 ; |
|
330f999ade44
Merged DMD 1.038
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parents:
664
diff
changeset
|
620 else if (e->isBool(FALSE)) |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
621 goto Lnomatch; |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
622 else |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
623 { |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
624 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
|
625 } |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
626 } |
|
330f999ade44
Merged DMD 1.038
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parents:
664
diff
changeset
|
627 #endif |
|
330f999ade44
Merged DMD 1.038
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parents:
664
diff
changeset
|
628 |
| 336 | 629 #if LOGM |
| 630 // Print out the results | |
| 631 printf("--------------------------\n"); | |
| 632 printf("template %s\n", toChars()); | |
| 633 printf("instance %s\n", ti->toChars()); | |
| 634 if (m) | |
| 635 { | |
| 636 for (int i = 0; i < dedtypes_dim; i++) | |
| 637 { | |
| 638 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 639 Object *oarg; | |
| 640 | |
| 641 printf(" [%d]", i); | |
| 642 | |
| 643 if (i < ti->tiargs->dim) | |
| 644 oarg = (Object *)ti->tiargs->data[i]; | |
| 645 else | |
| 646 oarg = NULL; | |
| 647 tp->print(oarg, (Object *)dedtypes->data[i]); | |
| 648 } | |
| 649 } | |
| 650 else | |
| 651 goto Lnomatch; | |
| 652 #endif | |
| 653 | |
| 654 #if LOGM | |
| 655 printf(" match = %d\n", m); | |
| 656 #endif | |
| 657 goto Lret; | |
| 658 | |
| 659 Lnomatch: | |
| 660 #if LOGM | |
| 661 printf(" no match\n"); | |
| 662 #endif | |
| 663 m = MATCHnomatch; | |
| 664 | |
| 665 Lret: | |
| 666 paramscope->pop(); | |
| 667 #if LOGM | |
| 668 printf("-TemplateDeclaration::matchWithInstance(this = %p, ti = %p) = %d\n", this, ti, m); | |
| 669 #endif | |
| 670 return m; | |
| 671 } | |
| 672 | |
| 673 /******************************************** | |
| 674 * Determine partial specialization order of 'this' vs td2. | |
| 675 * Returns: | |
|
1195
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
676 * match this is at least as specialized as td2 |
| 336 | 677 * 0 td2 is more specialized than this |
| 678 */ | |
| 679 | |
|
1195
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Merged DMD 1.042.
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parents:
1174
diff
changeset
|
680 MATCH TemplateDeclaration::leastAsSpecialized(TemplateDeclaration *td2) |
| 336 | 681 { |
| 682 /* This works by taking the template parameters to this template | |
| 683 * declaration and feeding them to td2 as if it were a template | |
| 684 * instance. | |
| 685 * If it works, then this template is at least as specialized | |
| 686 * as td2. | |
| 687 */ | |
| 688 | |
| 689 TemplateInstance ti(0, ident); // create dummy template instance | |
| 690 Objects dedtypes; | |
| 691 | |
| 692 #define LOG_LEASTAS 0 | |
| 693 | |
| 694 #if LOG_LEASTAS | |
| 695 printf("%s.leastAsSpecialized(%s)\n", toChars(), td2->toChars()); | |
| 696 #endif | |
| 697 | |
| 698 // Set type arguments to dummy template instance to be types | |
| 699 // generated from the parameters to this template declaration | |
| 700 ti.tiargs = new Objects(); | |
| 701 ti.tiargs->setDim(parameters->dim); | |
| 702 for (int i = 0; i < ti.tiargs->dim; i++) | |
| 703 { | |
| 704 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 705 | |
| 706 void *p = tp->dummyArg(); | |
| 707 if (p) | |
| 708 ti.tiargs->data[i] = p; | |
| 709 else | |
| 710 ti.tiargs->setDim(i); | |
| 711 } | |
| 712 | |
| 713 // Temporary Array to hold deduced types | |
| 714 //dedtypes.setDim(parameters->dim); | |
| 715 dedtypes.setDim(td2->parameters->dim); | |
| 716 | |
| 717 // Attempt a type deduction | |
|
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Merged DMD 1.042.
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parents:
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diff
changeset
|
718 MATCH m = td2->matchWithInstance(&ti, &dedtypes, 1); |
|
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Merged DMD 1.042.
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parents:
1174
diff
changeset
|
719 if (m) |
| 336 | 720 { |
| 721 /* A non-variadic template is more specialized than a | |
| 722 * variadic one. | |
| 723 */ | |
| 724 if (isVariadic() && !td2->isVariadic()) | |
| 725 goto L1; | |
| 726 | |
| 727 #if LOG_LEASTAS | |
|
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
728 printf(" matches %d, so is least as specialized\n", m); |
| 336 | 729 #endif |
|
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Merged DMD 1.042.
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parents:
1174
diff
changeset
|
730 return m; |
| 336 | 731 } |
| 732 L1: | |
| 733 #if LOG_LEASTAS | |
| 734 printf(" doesn't match, so is not as specialized\n"); | |
| 735 #endif | |
|
1195
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
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diff
changeset
|
736 return MATCHnomatch; |
| 336 | 737 } |
| 738 | |
| 739 | |
| 740 /************************************************* | |
| 741 * Match function arguments against a specific template function. | |
| 742 * Input: | |
|
875
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Merged DMD 1.038
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parents:
664
diff
changeset
|
743 * loc instantiation location |
| 336 | 744 * 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
|
745 * ethis 'this' argument if !NULL |
| 336 | 746 * fargs arguments to function |
| 747 * Output: | |
| 748 * dedargs Expression/Type deduced template arguments | |
| 749 * Returns: | |
| 750 * match level | |
| 751 */ | |
| 752 | |
|
875
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Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
753 MATCH TemplateDeclaration::deduceFunctionTemplateMatch(Loc loc, Objects *targsi, |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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664
diff
changeset
|
754 Expression *ethis, Expressions *fargs, |
| 336 | 755 Objects *dedargs) |
| 756 { | |
| 757 size_t i; | |
| 758 size_t nfparams; | |
| 759 size_t nfargs; | |
| 760 size_t nargsi; // array size of targsi | |
| 761 int fptupindex = -1; | |
| 762 int tuple_dim = 0; | |
| 763 MATCH match = MATCHexact; | |
| 764 FuncDeclaration *fd = onemember->toAlias()->isFuncDeclaration(); | |
|
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Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
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diff
changeset
|
765 Parameters *fparameters; // function parameter list |
|
a87f1d6ff48e
Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
parents:
1615
diff
changeset
|
766 int fvarargs; // function varargs |
| 336 | 767 Objects dedtypes; // for T:T*, the dedargs is the T*, dedtypes is the T |
| 768 | |
| 769 #if 0 | |
| 770 printf("\nTemplateDeclaration::deduceFunctionTemplateMatch() %s\n", toChars()); | |
| 771 for (i = 0; i < fargs->dim; i++) | |
| 772 { Expression *e = (Expression *)fargs->data[i]; | |
| 773 printf("\tfarg[%d] is %s, type is %s\n", i, e->toChars(), e->type->toChars()); | |
| 774 } | |
|
1618
a87f1d6ff48e
Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
parents:
1615
diff
changeset
|
775 printf("fd = %s\n", fd->toChars()); |
|
a87f1d6ff48e
Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
parents:
1615
diff
changeset
|
776 printf("fd->type = %p\n", fd->type); |
| 336 | 777 #endif |
| 778 | |
| 779 assert((size_t)scope > 0x10000); | |
| 780 | |
| 781 dedargs->setDim(parameters->dim); | |
| 782 dedargs->zero(); | |
| 783 | |
| 784 dedtypes.setDim(parameters->dim); | |
| 785 dedtypes.zero(); | |
| 786 | |
| 787 // Set up scope for parameters | |
| 788 ScopeDsymbol *paramsym = new ScopeDsymbol(); | |
| 789 paramsym->parent = scope->parent; | |
| 790 Scope *paramscope = scope->push(paramsym); | |
| 791 | |
|
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Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
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diff
changeset
|
792 TemplateTupleParameter *tp = isVariadic(); |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
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diff
changeset
|
793 |
|
e961851fb8be
Merged DMD 1.042.
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parents:
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diff
changeset
|
794 #if 0 |
|
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
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diff
changeset
|
795 for (i = 0; i < dedargs->dim; i++) |
|
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
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diff
changeset
|
796 { |
|
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
797 printf("\tdedarg[%d] = ", i); |
|
e961851fb8be
Merged DMD 1.042.
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diff
changeset
|
798 Object *oarg = (Object *)dedargs->data[i]; |
|
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Merged DMD 1.042.
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parents:
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diff
changeset
|
799 if (oarg) printf("%s", oarg->toChars()); |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
800 printf("\n"); |
|
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Merged DMD 1.042.
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diff
changeset
|
801 } |
|
e961851fb8be
Merged DMD 1.042.
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parents:
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diff
changeset
|
802 #endif |
|
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Merged DMD 1.042.
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1174
diff
changeset
|
803 |
| 336 | 804 |
| 805 nargsi = 0; | |
| 806 if (targsi) | |
| 807 { // Set initial template arguments | |
| 808 | |
| 809 nargsi = targsi->dim; | |
| 1587 | 810 size_t n = parameters->dim; |
| 811 if (nargsi > n) | |
| 336 | 812 { if (!tp) |
| 813 goto Lnomatch; | |
| 814 dedargs->setDim(nargsi); | |
| 815 dedargs->zero(); | |
| 816 } | |
| 1587 | 817 else |
| 818 n = nargsi; | |
| 819 | |
|
1610
4f63d530861f
Merge DMD r276: bugzilla 2229 ICE(template.c) instantiating an invalid...
Leandro Lucarella <llucax@gmail.com>
parents:
1609
diff
changeset
|
820 /* Test case for nargsi instead of n: |
|
4f63d530861f
Merge DMD r276: bugzilla 2229 ICE(template.c) instantiating an invalid...
Leandro Lucarella <llucax@gmail.com>
parents:
1609
diff
changeset
|
821 * string foo(T...)() { return ""; } |
|
4f63d530861f
Merge DMD r276: bugzilla 2229 ICE(template.c) instantiating an invalid...
Leandro Lucarella <llucax@gmail.com>
parents:
1609
diff
changeset
|
822 * void main() { foo!(int, char)(); } |
|
4f63d530861f
Merge DMD r276: bugzilla 2229 ICE(template.c) instantiating an invalid...
Leandro Lucarella <llucax@gmail.com>
parents:
1609
diff
changeset
|
823 */ |
|
4f63d530861f
Merge DMD r276: bugzilla 2229 ICE(template.c) instantiating an invalid...
Leandro Lucarella <llucax@gmail.com>
parents:
1609
diff
changeset
|
824 //memcpy(dedargs->data, targsi->data, n * sizeof(*dedargs->data)); |
|
4f63d530861f
Merge DMD r276: bugzilla 2229 ICE(template.c) instantiating an invalid...
Leandro Lucarella <llucax@gmail.com>
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diff
changeset
|
825 memcpy(dedargs->data, targsi->data, nargsi * sizeof(*dedargs->data)); |
| 1587 | 826 |
| 827 for (size_t i = 0; i < n; i++) | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
828 { assert(i < parameters->dim); |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
829 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; |
| 336 | 830 MATCH m; |
|
1195
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
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diff
changeset
|
831 Declaration *sparam = NULL; |
| 336 | 832 |
| 833 m = tp->matchArg(paramscope, dedargs, i, parameters, &dedtypes, &sparam); | |
| 834 //printf("\tdeduceType m = %d\n", m); | |
| 835 if (m == MATCHnomatch) | |
| 836 goto Lnomatch; | |
| 837 if (m < match) | |
| 838 match = m; | |
| 839 | |
| 840 sparam->semantic(paramscope); | |
| 841 if (!paramscope->insert(sparam)) | |
| 842 goto Lnomatch; | |
| 843 } | |
| 844 } | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
845 #if 0 |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
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diff
changeset
|
846 for (i = 0; i < dedargs->dim; i++) |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
847 { |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
848 printf("\tdedarg[%d] = ", i); |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
849 Object *oarg = (Object *)dedargs->data[i]; |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
850 if (oarg) printf("%s", oarg->toChars()); |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
851 printf("\n"); |
|
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
852 } |
|
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
853 #endif |
| 336 | 854 |
|
1618
a87f1d6ff48e
Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
parents:
1615
diff
changeset
|
855 fparameters = fd->getParameters(&fvarargs); |
|
a87f1d6ff48e
Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
parents:
1615
diff
changeset
|
856 nfparams = Parameter::dim(fparameters); // number of function parameters |
| 1587 | 857 nfargs = fargs ? fargs->dim : 0; // number of function arguments |
| 336 | 858 |
| 859 /* Check for match of function arguments with variadic template | |
| 860 * parameter, such as: | |
| 861 * | |
| 862 * template Foo(T, A...) { void Foo(T t, A a); } | |
| 863 * void main() { Foo(1,2,3); } | |
| 864 */ | |
| 865 if (tp) // if variadic | |
| 866 { | |
| 1587 | 867 if (nfparams == 0 && nfargs != 0) // if no function parameters |
| 336 | 868 { |
| 869 Tuple *t = new Tuple(); | |
| 870 //printf("t = %p\n", t); | |
| 871 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
|
872 declareParameter(paramscope, tp, t); |
| 336 | 873 goto L2; |
| 874 } | |
| 875 else if (nfargs < nfparams - 1) | |
| 876 goto L1; | |
| 877 else | |
| 878 { | |
| 879 /* Figure out which of the function parameters matches | |
| 880 * the tuple template parameter. Do this by matching | |
| 881 * type identifiers. | |
| 882 * Set the index of this function parameter to fptupindex. | |
| 883 */ | |
| 884 for (fptupindex = 0; fptupindex < nfparams; fptupindex++) | |
| 885 { | |
|
1618
a87f1d6ff48e
Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
parents:
1615
diff
changeset
|
886 Parameter *fparam = (Parameter *)fparameters->data[fptupindex]; |
| 336 | 887 if (fparam->type->ty != Tident) |
| 888 continue; | |
| 889 TypeIdentifier *tid = (TypeIdentifier *)fparam->type; | |
| 890 if (!tp->ident->equals(tid->ident) || tid->idents.dim) | |
| 891 continue; | |
| 892 | |
|
1618
a87f1d6ff48e
Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
parents:
1615
diff
changeset
|
893 if (fvarargs) // variadic function doesn't |
| 336 | 894 goto Lnomatch; // go with variadic template |
| 895 | |
| 896 /* The types of the function arguments | |
| 897 * now form the tuple argument. | |
| 898 */ | |
| 899 Tuple *t = new Tuple(); | |
| 900 dedargs->data[parameters->dim - 1] = (void *)t; | |
| 901 | |
| 902 tuple_dim = nfargs - (nfparams - 1); | |
| 903 t->objects.setDim(tuple_dim); | |
| 904 for (i = 0; i < tuple_dim; i++) | |
| 905 { Expression *farg = (Expression *)fargs->data[fptupindex + i]; | |
| 906 t->objects.data[i] = (void *)farg->type; | |
| 907 } | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
908 declareParameter(paramscope, tp, t); |
| 336 | 909 goto L2; |
| 910 } | |
| 911 fptupindex = -1; | |
| 912 } | |
| 913 } | |
| 914 | |
| 915 L1: | |
| 916 if (nfparams == nfargs) | |
| 917 ; | |
| 918 else if (nfargs > nfparams) | |
| 919 { | |
|
1618
a87f1d6ff48e
Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
parents:
1615
diff
changeset
|
920 if (fvarargs == 0) |
| 336 | 921 goto Lnomatch; // too many args, no match |
| 922 match = MATCHconvert; // match ... with a conversion | |
| 923 } | |
| 924 | |
| 925 L2: | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
926 #if DMDV2 |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
927 // Match 'ethis' to any TemplateThisParameter's |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
928 if (ethis) |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
929 { |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
930 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
|
931 { TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
932 TemplateThisParameter *ttp = tp->isTemplateThisParameter(); |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
933 if (ttp) |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
934 { MATCH m; |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
935 |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
936 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
|
937 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
|
938 if (!m) |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
939 goto Lnomatch; |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
940 if (m < match) |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
941 match = m; // pick worst match |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
942 } |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
943 } |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
944 } |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
945 #endif |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
946 |
| 336 | 947 // Loop through the function parameters |
| 948 for (i = 0; i < nfparams; i++) | |
| 949 { | |
| 950 /* Skip over function parameters which wound up | |
| 951 * as part of a template tuple parameter. | |
| 952 */ | |
| 953 if (i == fptupindex) | |
| 954 { if (fptupindex == nfparams - 1) | |
| 955 break; | |
| 956 i += tuple_dim - 1; | |
| 957 continue; | |
| 958 } | |
| 959 | |
|
1618
a87f1d6ff48e
Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
parents:
1615
diff
changeset
|
960 Parameter *fparam = Parameter::getNth(fparameters, i); |
| 336 | 961 |
| 962 if (i >= nfargs) // if not enough arguments | |
| 963 { | |
| 964 if (fparam->defaultArg) | |
| 965 { /* Default arguments do not participate in template argument | |
| 966 * deduction. | |
| 967 */ | |
| 968 goto Lmatch; | |
| 969 } | |
| 970 } | |
| 971 else | |
| 972 { Expression *farg = (Expression *)fargs->data[i]; | |
| 973 #if 0 | |
| 974 printf("\tfarg->type = %s\n", farg->type->toChars()); | |
| 975 printf("\tfparam->type = %s\n", fparam->type->toChars()); | |
| 976 #endif | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
977 Type *argtype = farg->type; |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
978 |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
979 #if DMDV2 |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
980 /* 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
|
981 */ |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
982 if (farg->op == TOKstring) |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
983 { StringExp *se = (StringExp *)farg; |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
984 if (!se->committed && argtype->ty == Tarray && |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
985 fparam->type->toBasetype()->ty == Tsarray) |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
986 { |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
987 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
|
988 argtype = argtype->semantic(se->loc, NULL); |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
989 argtype = argtype->invariantOf(); |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
990 } |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
991 } |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
992 #endif |
| 336 | 993 |
| 994 MATCH m; | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
995 m = argtype->deduceType(paramscope, fparam->type, parameters, &dedtypes); |
| 336 | 996 //printf("\tdeduceType m = %d\n", m); |
| 997 | |
| 998 /* If no match, see if there's a conversion to a delegate | |
| 999 */ | |
| 1000 if (!m && fparam->type->toBasetype()->ty == Tdelegate) | |
| 1001 { | |
| 1002 TypeDelegate *td = (TypeDelegate *)fparam->type->toBasetype(); | |
| 1003 TypeFunction *tf = (TypeFunction *)td->next; | |
| 1004 | |
|
1607
207a8a438dea
Merge DMD r253: refactor: Argument => Parameter
Leandro Lucarella <llucax@gmail.com>
parents:
1587
diff
changeset
|
1005 if (!tf->varargs && Parameter::dim(tf->parameters) == 0) |
| 336 | 1006 { |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1007 m = farg->type->deduceType(paramscope, tf->next, parameters, &dedtypes); |
| 336 | 1008 if (!m && tf->next->toBasetype()->ty == Tvoid) |
| 1009 m = MATCHconvert; | |
| 1010 } | |
| 1011 //printf("\tm2 = %d\n", m); | |
| 1012 } | |
| 1013 | |
| 1014 if (m) | |
| 1015 { if (m < match) | |
| 1016 match = m; // pick worst match | |
| 1017 continue; | |
| 1018 } | |
| 1019 } | |
| 1020 | |
| 1021 /* The following code for variadic arguments closely | |
| 1022 * matches TypeFunction::callMatch() | |
| 1023 */ | |
|
1618
a87f1d6ff48e
Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
parents:
1615
diff
changeset
|
1024 if (!(fvarargs == 2 && i + 1 == nfparams)) |
| 336 | 1025 goto Lnomatch; |
| 1026 | |
| 1027 /* Check for match with function parameter T... | |
| 1028 */ | |
| 1029 Type *tb = fparam->type->toBasetype(); | |
| 1030 switch (tb->ty) | |
| 1031 { | |
| 1032 // Perhaps we can do better with this, see TypeFunction::callMatch() | |
| 1033 case Tsarray: | |
| 1034 { TypeSArray *tsa = (TypeSArray *)tb; | |
|
1195
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1035 dinteger_t sz = tsa->dim->toInteger(); |
| 336 | 1036 if (sz != nfargs - i) |
| 1037 goto Lnomatch; | |
| 1038 } | |
| 1039 case Tarray: | |
| 1040 { TypeArray *ta = (TypeArray *)tb; | |
| 1041 for (; i < nfargs; i++) | |
| 1042 { | |
| 1043 Expression *arg = (Expression *)fargs->data[i]; | |
| 1044 assert(arg); | |
| 1045 MATCH m; | |
| 1046 /* If lazy array of delegates, | |
| 1047 * convert arg(s) to delegate(s) | |
| 1048 */ | |
| 1049 Type *tret = fparam->isLazyArray(); | |
| 1050 if (tret) | |
| 1051 { | |
| 1052 if (ta->next->equals(arg->type)) | |
| 1053 { m = MATCHexact; | |
| 1054 } | |
| 1055 else | |
| 1056 { | |
| 1057 m = arg->implicitConvTo(tret); | |
| 1058 if (m == MATCHnomatch) | |
| 1059 { | |
| 1060 if (tret->toBasetype()->ty == Tvoid) | |
| 1061 m = MATCHconvert; | |
| 1062 } | |
| 1063 } | |
| 1064 } | |
| 1065 else | |
| 1066 { | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1067 m = arg->type->deduceType(paramscope, ta->next, parameters, &dedtypes); |
| 336 | 1068 //m = arg->implicitConvTo(ta->next); |
| 1069 } | |
| 1070 if (m == MATCHnomatch) | |
| 1071 goto Lnomatch; | |
| 1072 if (m < match) | |
| 1073 match = m; | |
| 1074 } | |
| 1075 goto Lmatch; | |
| 1076 } | |
| 1077 case Tclass: | |
| 1078 case Tident: | |
| 1079 goto Lmatch; | |
| 1080 | |
| 1081 default: | |
| 1082 goto Lnomatch; | |
| 1083 } | |
| 1084 } | |
| 1085 | |
| 1086 Lmatch: | |
| 1087 | |
| 1088 /* Fill in any missing arguments with their defaults. | |
| 1089 */ | |
| 1090 for (i = nargsi; i < dedargs->dim; i++) | |
| 1091 { | |
| 1092 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 1093 //printf("tp[%d] = %s\n", i, tp->ident->toChars()); | |
| 1094 /* For T:T*, the dedargs is the T*, dedtypes is the T | |
| 1095 * But for function templates, we really need them to match | |
| 1096 */ | |
| 1097 Object *oarg = (Object *)dedargs->data[i]; | |
| 1098 Object *oded = (Object *)dedtypes.data[i]; | |
| 1099 //printf("1dedargs[%d] = %p, dedtypes[%d] = %p\n", i, oarg, i, oded); | |
|
1195
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Merged DMD 1.042.
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parents:
1174
diff
changeset
|
1100 //if (oarg) printf("oarg: %s\n", oarg->toChars()); |
|
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Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
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diff
changeset
|
1101 //if (oded) printf("oded: %s\n", oded->toChars()); |
| 336 | 1102 if (!oarg) |
| 1103 { | |
| 1104 if (oded) | |
| 1105 { | |
| 1106 if (tp->specialization()) | |
| 1107 { /* The specialization can work as long as afterwards | |
| 1108 * the oded == oarg | |
| 1109 */ | |
| 1110 Declaration *sparam; | |
| 1111 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
|
1112 MATCH m2 = tp->matchArg(paramscope, dedargs, i, parameters, &dedtypes, &sparam, 0); |
| 336 | 1113 //printf("m2 = %d\n", m2); |
| 1114 if (!m2) | |
| 1115 goto Lnomatch; | |
| 1116 if (m2 < match) | |
| 1117 match = m2; // pick worst match | |
| 1118 if (dedtypes.data[i] != oded) | |
| 1119 error("specialization not allowed for deduced parameter %s", tp->ident->toChars()); | |
| 1120 } | |
| 1121 } | |
| 1122 else | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1123 { oded = tp->defaultArg(loc, paramscope); |
| 336 | 1124 if (!oded) |
| 1125 goto Lnomatch; | |
| 1126 } | |
| 1127 declareParameter(paramscope, tp, oded); | |
| 1128 dedargs->data[i] = (void *)oded; | |
| 1129 } | |
| 1130 } | |
| 1131 | |
|
875
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Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff
changeset
|
1132 #if DMDV2 |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1133 if (constraint) |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1134 { /* Check to see if constraint is satisfied. |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1135 */ |
|
1618
a87f1d6ff48e
Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
parents:
1615
diff
changeset
|
1136 makeParamNamesVisibleInConstraint(paramscope); |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1137 Expression *e = constraint->syntaxCopy(); |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1138 paramscope->flags |= SCOPEstaticif; |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1139 e = e->semantic(paramscope); |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1140 e = e->optimize(WANTvalue | WANTinterpret); |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1141 if (e->isBool(TRUE)) |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1142 ; |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1143 else if (e->isBool(FALSE)) |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1144 goto Lnomatch; |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1145 else |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1146 { |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1147 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
|
1148 } |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1149 } |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
changeset
|
1150 #endif |
|
330f999ade44
Merged DMD 1.038
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diff
changeset
|
1151 |
| 336 | 1152 #if 0 |
| 1153 for (i = 0; i < dedargs->dim; i++) | |
| 1154 { Type *t = (Type *)dedargs->data[i]; | |
| 1155 printf("\tdedargs[%d] = %d, %s\n", i, t->dyncast(), t->toChars()); | |
| 1156 } | |
| 1157 #endif | |
| 1158 | |
| 1159 paramscope->pop(); | |
| 1160 //printf("\tmatch %d\n", match); | |
| 1161 return match; | |
| 1162 | |
| 1163 Lnomatch: | |
| 1164 paramscope->pop(); | |
| 1165 //printf("\tnomatch\n"); | |
| 1166 return MATCHnomatch; | |
| 1167 } | |
| 1168 | |
| 1169 /************************************************** | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1170 * Declare template parameter tp with value o, and install it in the scope sc. |
| 336 | 1171 */ |
| 1172 | |
| 1173 void TemplateDeclaration::declareParameter(Scope *sc, TemplateParameter *tp, Object *o) | |
| 1174 { | |
| 1175 //printf("TemplateDeclaration::declareParameter('%s', o = %p)\n", tp->ident->toChars(), o); | |
| 1176 | |
| 1177 Type *targ = isType(o); | |
| 1178 Expression *ea = isExpression(o); | |
| 1179 Dsymbol *sa = isDsymbol(o); | |
| 1180 Tuple *va = isTuple(o); | |
| 1181 | |
| 1182 Dsymbol *s; | |
| 1183 | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1184 // 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
|
1185 Dsymbol *scopesym; |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1186 s = sc->search(loc, tp->ident, &scopesym); |
|
e961851fb8be
Merged DMD 1.042.
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parents:
1174
diff
changeset
|
1187 if (s && scopesym == sc->scopesym) |
|
e961851fb8be
Merged DMD 1.042.
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parents:
1174
diff
changeset
|
1188 { |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1189 TupleDeclaration *td = s->isTupleDeclaration(); |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1190 if (va && td) |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1191 { Tuple tup; |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1192 tup.objects = *td->objects; |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1193 if (match(va, &tup, this, sc)) |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1194 { |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1195 return; |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1196 } |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1197 } |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1198 } |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1199 |
| 336 | 1200 if (targ) |
| 1201 { | |
| 1202 //printf("type %s\n", targ->toChars()); | |
| 1203 s = new AliasDeclaration(0, tp->ident, targ); | |
| 1204 } | |
| 1205 else if (sa) | |
| 1206 { | |
| 1207 //printf("Alias %s %s;\n", sa->ident->toChars(), tp->ident->toChars()); | |
| 1208 s = new AliasDeclaration(0, tp->ident, sa); | |
| 1209 } | |
| 1210 else if (ea) | |
| 1211 { | |
| 1212 // tdtypes.data[i] always matches ea here | |
| 1213 Initializer *init = new ExpInitializer(loc, ea); | |
| 1214 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
| 1215 assert(tvp); | |
| 1216 | |
| 1217 VarDeclaration *v = new VarDeclaration(loc, tvp->valType, tp->ident, init); | |
| 1218 v->storage_class = STCconst; | |
| 1219 s = v; | |
| 1220 } | |
| 1221 else if (va) | |
| 1222 { | |
| 1223 //printf("\ttuple\n"); | |
| 1224 s = new TupleDeclaration(loc, tp->ident, &va->objects); | |
| 1225 } | |
| 1226 else | |
| 1227 { | |
| 1228 #ifdef DEBUG | |
| 1229 o->print(); | |
| 1230 #endif | |
| 1231 assert(0); | |
| 1232 } | |
| 1233 if (!sc->insert(s)) | |
| 1234 error("declaration %s is already defined", tp->ident->toChars()); | |
| 1235 s->semantic(sc); | |
| 1236 } | |
| 1237 | |
| 1238 /************************************** | |
| 1239 * Determine if TemplateDeclaration is variadic. | |
| 1240 */ | |
| 1241 | |
| 1242 TemplateTupleParameter *isVariadic(TemplateParameters *parameters) | |
| 1243 { size_t dim = parameters->dim; | |
| 1244 TemplateTupleParameter *tp = NULL; | |
| 1245 | |
| 1246 if (dim) | |
| 1247 tp = ((TemplateParameter *)parameters->data[dim - 1])->isTemplateTupleParameter(); | |
| 1248 return tp; | |
| 1249 } | |
| 1250 | |
| 1251 TemplateTupleParameter *TemplateDeclaration::isVariadic() | |
| 1252 { | |
| 1253 return ::isVariadic(parameters); | |
| 1254 } | |
| 1255 | |
| 1256 /*********************************** | |
| 1257 * We can overload templates. | |
| 1258 */ | |
| 1259 | |
| 1260 int TemplateDeclaration::isOverloadable() | |
| 1261 { | |
| 1262 return 1; | |
| 1263 } | |
| 1264 | |
| 1265 /************************************************* | |
| 1266 * Given function arguments, figure out which template function | |
| 1267 * to expand, and return that function. | |
| 1268 * If no match, give error message and return NULL. | |
| 1269 * Input: | |
| 1270 * sc instantiation scope | |
| 1271 * loc instantiation location | |
| 1272 * targsi initial list of template arguments | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1273 * ethis if !NULL, the 'this' pointer argument |
| 336 | 1274 * fargs arguments to function |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1275 * flags 1: do not issue error message on no match, just return NULL |
| 336 | 1276 */ |
| 1277 | |
| 1278 FuncDeclaration *TemplateDeclaration::deduceFunctionTemplate(Scope *sc, Loc loc, | |
|
875
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Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1279 Objects *targsi, Expression *ethis, Expressions *fargs, int flags) |
| 336 | 1280 { |
| 1281 MATCH m_best = MATCHnomatch; | |
| 1282 TemplateDeclaration *td_ambig = NULL; | |
| 1283 TemplateDeclaration *td_best = NULL; | |
| 1284 Objects *tdargs = new Objects(); | |
| 1285 TemplateInstance *ti; | |
| 1286 FuncDeclaration *fd; | |
| 1287 | |
| 1288 #if 0 | |
| 1289 printf("TemplateDeclaration::deduceFunctionTemplate() %s\n", toChars()); | |
| 1290 printf(" targsi:\n"); | |
| 1291 if (targsi) | |
| 1292 { for (int i = 0; i < targsi->dim; i++) | |
| 1293 { Object *arg = (Object *)targsi->data[i]; | |
| 1294 printf("\t%s\n", arg->toChars()); | |
| 1295 } | |
| 1296 } | |
| 1297 printf(" fargs:\n"); | |
| 1298 for (int i = 0; i < fargs->dim; i++) | |
| 1299 { Expression *arg = (Expression *)fargs->data[i]; | |
| 1300 printf("\t%s %s\n", arg->type->toChars(), arg->toChars()); | |
| 1301 //printf("\tty = %d\n", arg->type->ty); | |
| 1302 } | |
| 1303 #endif | |
| 1304 | |
| 1305 for (TemplateDeclaration *td = this; td; td = td->overnext) | |
| 1306 { | |
| 1587 | 1307 if (!td->semanticRun) |
| 336 | 1308 { |
| 1309 error("forward reference to template %s", td->toChars()); | |
| 1310 goto Lerror; | |
| 1311 } | |
| 1312 if (!td->onemember || !td->onemember->toAlias()->isFuncDeclaration()) | |
| 1313 { | |
| 1314 error("is not a function template"); | |
| 1315 goto Lerror; | |
| 1316 } | |
| 1317 | |
| 1318 MATCH m; | |
| 1319 Objects dedargs; | |
| 1320 | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
1321 m = td->deduceFunctionTemplateMatch(loc, targsi, ethis, fargs, &dedargs); |
| 336 | 1322 //printf("deduceFunctionTemplateMatch = %d\n", m); |
| 1323 if (!m) // if no match | |
| 1324 continue; | |
| 1325 | |
| 1326 if (m < m_best) | |
| 1327 goto Ltd_best; | |
| 1328 if (m > m_best) | |
| 1329 goto Ltd; | |
| 1330 | |
| 1331 { | |
| 1332 // 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
|
1333 MATCH c1 = td->leastAsSpecialized(td_best); |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1334 MATCH c2 = td_best->leastAsSpecialized(td); |
| 336 | 1335 //printf("c1 = %d, c2 = %d\n", c1, c2); |
| 1336 | |
| 1337 if (c1 > c2) | |
| 1338 goto Ltd; | |
| 1339 else if (c1 < c2) | |
| 1340 goto Ltd_best; | |
| 1341 else | |
| 1342 goto Lambig; | |
| 1343 } | |
| 1344 | |
| 1345 Lambig: // td_best and td are ambiguous | |
| 1346 td_ambig = td; | |
| 1347 continue; | |
| 1348 | |
| 1349 Ltd_best: // td_best is the best match so far | |
| 1350 td_ambig = NULL; | |
| 1351 continue; | |
| 1352 | |
| 1353 Ltd: // td is the new best match | |
| 1354 td_ambig = NULL; | |
| 1355 assert((size_t)td->scope > 0x10000); | |
| 1356 td_best = td; | |
| 1357 m_best = m; | |
| 1358 tdargs->setDim(dedargs.dim); | |
| 1359 memcpy(tdargs->data, dedargs.data, tdargs->dim * sizeof(void *)); | |
| 1360 continue; | |
| 1361 } | |
| 1362 if (!td_best) | |
| 1363 { | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1364 error(loc, "does not match any function template declaration"); |
| 336 | 1365 goto Lerror; |
| 1366 } | |
| 1367 if (td_ambig) | |
| 1368 { | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
1369 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
|
1370 td_best->toChars(), td_ambig->toChars()); |
| 336 | 1371 } |
| 1372 | |
| 1373 /* The best match is td_best with arguments tdargs. | |
| 1374 * Now instantiate the template. | |
| 1375 */ | |
| 1376 assert((size_t)td_best->scope > 0x10000); | |
| 1377 ti = new TemplateInstance(loc, td_best, tdargs); | |
| 1378 ti->semantic(sc); | |
| 1379 fd = ti->toAlias()->isFuncDeclaration(); | |
| 1380 if (!fd) | |
| 1381 goto Lerror; | |
| 1382 return fd; | |
| 1383 | |
| 1384 Lerror: | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
1385 #if DMDV2 |
|
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Merged DMD 1.042.
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|
1386 if (!(flags & 1)) |
|
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1387 #endif |
| 336 | 1388 { |
|
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1389 HdrGenState hgs; |
|
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|
1390 |
|
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|
1391 OutBuffer bufa; |
|
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1392 Objects *args = targsi; |
|
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1393 if (args) |
|
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1394 { for (int i = 0; i < args->dim; i++) |
|
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1395 { |
|
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1396 if (i) |
|
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|
1397 bufa.writeByte(','); |
|
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1398 Object *oarg = (Object *)args->data[i]; |
|
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|
1399 ObjectToCBuffer(&bufa, &hgs, oarg); |
|
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|
1400 } |
|
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|
1401 } |
|
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|
1402 |
| 336 | 1403 OutBuffer buf; |
| 1404 argExpTypesToCBuffer(&buf, fargs, &hgs); | |
|
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|
1405 error(loc, "cannot deduce template function from argument types !(%s)(%s)", |
|
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|
1406 bufa.toChars(), buf.toChars()); |
| 336 | 1407 } |
|
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|
1408 return NULL; |
| 336 | 1409 } |
| 1410 | |
| 1411 void TemplateDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 1412 { | |
| 1413 #if 0 // Should handle template functions | |
| 1414 if (onemember && onemember->isFuncDeclaration()) | |
| 1415 buf->writestring("foo "); | |
| 1416 #endif | |
| 1417 buf->writestring(kind()); | |
| 1418 buf->writeByte(' '); | |
| 1419 buf->writestring(ident->toChars()); | |
| 1420 buf->writeByte('('); | |
| 1421 for (int i = 0; i < parameters->dim; i++) | |
| 1422 { | |
| 1423 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 1424 if (hgs->ddoc) | |
| 1425 tp = (TemplateParameter *)origParameters->data[i]; | |
| 1426 if (i) | |
| 1427 buf->writeByte(','); | |
| 1428 tp->toCBuffer(buf, hgs); | |
| 1429 } | |
| 1430 buf->writeByte(')'); | |
|
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|
1431 #if DMDV2 |
|
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|
1432 if (constraint) |
|
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|
1433 { buf->writestring(" if ("); |
|
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|
1434 constraint->toCBuffer(buf, hgs); |
|
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Merged DMD 1.038
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|
1435 buf->writeByte(')'); |
|
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|
1436 } |
|
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|
1437 #endif |
| 336 | 1438 |
| 1439 if (hgs->hdrgen) | |
| 1440 { | |
| 1441 hgs->tpltMember++; | |
| 1442 buf->writenl(); | |
| 1443 buf->writebyte('{'); | |
| 1444 buf->writenl(); | |
| 1445 for (int i = 0; i < members->dim; i++) | |
| 1446 { | |
| 1447 Dsymbol *s = (Dsymbol *)members->data[i]; | |
| 1448 s->toCBuffer(buf, hgs); | |
| 1449 } | |
| 1450 buf->writebyte('}'); | |
| 1451 buf->writenl(); | |
| 1452 hgs->tpltMember--; | |
| 1453 } | |
| 1454 } | |
| 1455 | |
| 1456 | |
| 1457 char *TemplateDeclaration::toChars() | |
| 1458 { OutBuffer buf; | |
| 1459 HdrGenState hgs; | |
| 1460 | |
| 1461 memset(&hgs, 0, sizeof(hgs)); | |
| 1462 buf.writestring(ident->toChars()); | |
| 1463 buf.writeByte('('); | |
| 1464 for (int i = 0; i < parameters->dim; i++) | |
| 1465 { | |
| 1466 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 1467 if (i) | |
| 1468 buf.writeByte(','); | |
| 1469 tp->toCBuffer(&buf, &hgs); | |
| 1470 } | |
| 1471 buf.writeByte(')'); | |
|
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|
1472 #if DMDV2 |
|
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|
1473 if (constraint) |
|
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|
1474 { buf.writestring(" if ("); |
|
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Merged DMD 1.038
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|
1475 constraint->toCBuffer(&buf, &hgs); |
|
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Merged DMD 1.038
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|
1476 buf.writeByte(')'); |
|
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|
1477 } |
|
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|
1478 #endif |
| 336 | 1479 buf.writeByte(0); |
| 1480 return (char *)buf.extractData(); | |
| 1481 } | |
| 1482 | |
| 1483 /* ======================== Type ============================================ */ | |
| 1484 | |
| 1485 /**** | |
| 1486 * Given an identifier, figure out which TemplateParameter it is. | |
| 1487 * Return -1 if not found. | |
| 1488 */ | |
| 1489 | |
| 1490 int templateIdentifierLookup(Identifier *id, TemplateParameters *parameters) | |
| 1491 { | |
| 1492 for (size_t i = 0; i < parameters->dim; i++) | |
| 1493 { TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 1494 | |
| 1495 if (tp->ident->equals(id)) | |
| 1496 return i; | |
| 1497 } | |
| 1498 return -1; | |
| 1499 } | |
| 1500 | |
| 1501 int templateParameterLookup(Type *tparam, TemplateParameters *parameters) | |
| 1502 { | |
| 1503 assert(tparam->ty == Tident); | |
| 1504 TypeIdentifier *tident = (TypeIdentifier *)tparam; | |
| 1505 //printf("\ttident = '%s'\n", tident->toChars()); | |
| 1506 if (tident->idents.dim == 0) | |
| 1507 { | |
| 1508 return templateIdentifierLookup(tident->ident, parameters); | |
| 1509 } | |
| 1510 return -1; | |
| 1511 } | |
| 1512 | |
| 1513 /* These form the heart of template argument deduction. | |
| 1514 * Given 'this' being the type argument to the template instance, | |
| 1515 * it is matched against the template declaration parameter specialization | |
| 1516 * 'tparam' to determine the type to be used for the parameter. | |
| 1517 * Example: | |
| 1518 * template Foo(T:T*) // template declaration | |
| 1519 * Foo!(int*) // template instantiation | |
| 1520 * Input: | |
| 1521 * this = int* | |
| 1522 * tparam = T | |
| 1523 * parameters = [ T:T* ] // Array of TemplateParameter's | |
| 1524 * Output: | |
| 1525 * dedtypes = [ int ] // Array of Expression/Type's | |
| 1526 */ | |
| 1527 | |
| 1528 MATCH Type::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, | |
| 1529 Objects *dedtypes) | |
| 1530 { | |
|
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|
1531 #if 0 |
|
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|
1532 printf("Type::deduceType()\n"); |
|
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|
1533 printf("\tthis = %d, ", ty); print(); |
|
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|
1534 printf("\ttparam = %d, ", tparam->ty); tparam->print(); |
|
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|
1535 #endif |
| 336 | 1536 if (!tparam) |
| 1537 goto Lnomatch; | |
| 1538 | |
| 1539 if (this == tparam) | |
| 1540 goto Lexact; | |
| 1541 | |
| 1542 if (tparam->ty == Tident) | |
| 1543 { | |
| 1544 // Determine which parameter tparam is | |
| 1545 int i = templateParameterLookup(tparam, parameters); | |
| 1546 if (i == -1) | |
| 1547 { | |
| 1548 if (!sc) | |
| 1549 goto Lnomatch; | |
| 1550 | |
| 1551 /* Need a loc to go with the semantic routine. | |
| 1552 */ | |
| 1553 Loc loc; | |
| 1554 if (parameters->dim) | |
| 1555 { | |
| 1556 TemplateParameter *tp = (TemplateParameter *)parameters->data[0]; | |
| 1557 loc = tp->loc; | |
| 1558 } | |
| 1559 | |
| 1560 /* BUG: what if tparam is a template instance, that | |
| 1561 * has as an argument another Tident? | |
| 1562 */ | |
| 1563 tparam = tparam->semantic(loc, sc); | |
| 1564 assert(tparam->ty != Tident); | |
| 1565 return deduceType(sc, tparam, parameters, dedtypes); | |
| 1566 } | |
| 1567 | |
| 1568 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 1569 | |
| 1570 // Found the corresponding parameter tp | |
| 1571 if (!tp->isTemplateTypeParameter()) | |
| 1572 goto Lnomatch; | |
| 1573 Type *at = (Type *)dedtypes->data[i]; | |
| 1574 if (!at) | |
| 1575 { | |
| 1576 dedtypes->data[i] = (void *)this; | |
| 1577 goto Lexact; | |
| 1578 } | |
| 1579 if (equals(at)) | |
| 1580 goto Lexact; | |
| 1581 else if (ty == Tclass && at->ty == Tclass) | |
| 1582 { | |
| 1583 return (MATCH) implicitConvTo(at); | |
| 1584 } | |
| 1585 else if (ty == Tsarray && at->ty == Tarray && | |
| 1586 nextOf()->equals(at->nextOf())) | |
| 1587 { | |
| 1588 goto Lexact; | |
| 1589 } | |
| 1590 else | |
| 1591 goto Lnomatch; | |
| 1592 } | |
| 1593 | |
| 1594 if (ty != tparam->ty) | |
| 1595 return implicitConvTo(tparam); | |
| 1596 // goto Lnomatch; | |
| 1597 | |
| 1598 if (nextOf()) | |
| 1599 return nextOf()->deduceType(sc, tparam->nextOf(), parameters, dedtypes); | |
| 1600 | |
| 1601 Lexact: | |
| 1602 return MATCHexact; | |
| 1603 | |
| 1604 Lnomatch: | |
| 1605 return MATCHnomatch; | |
|
1195
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|
1606 |
|
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|
1607 #if DMDV2 |
|
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1608 Lconst: |
|
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|
1609 return MATCHconst; |
|
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|
1610 #endif |
| 336 | 1611 } |
| 1612 | |
|
1195
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|
1613 #if DMDV2 |
|
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|
1614 MATCH TypeDArray::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, |
|
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|
1615 Objects *dedtypes) |
|
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|
1616 { |
|
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|
1617 #if 0 |
|
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Merged DMD 1.042.
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|
1618 printf("TypeDArray::deduceType()\n"); |
|
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|
1619 printf("\tthis = %d, ", ty); print(); |
|
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|
1620 printf("\ttparam = %d, ", tparam->ty); tparam->print(); |
|
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|
1621 #endif |
|
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|
1622 return Type::deduceType(sc, tparam, parameters, dedtypes); |
|
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|
1623 |
|
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|
1624 Lnomatch: |
|
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|
1625 return MATCHnomatch; |
|
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|
1626 } |
|
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Merged DMD 1.042.
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|
1627 #endif |
|
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|
1628 |
| 336 | 1629 MATCH TypeSArray::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, |
| 1630 Objects *dedtypes) | |
| 1631 { | |
| 1632 #if 0 | |
| 1633 printf("TypeSArray::deduceType()\n"); | |
| 1634 printf("\tthis = %d, ", ty); print(); | |
| 1635 printf("\ttparam = %d, ", tparam->ty); tparam->print(); | |
| 1636 #endif | |
| 1637 | |
| 1638 // Extra check that array dimensions must match | |
| 1639 if (tparam) | |
| 1640 { | |
| 1641 if (tparam->ty == Tsarray) | |
| 1642 { | |
| 1643 TypeSArray *tp = (TypeSArray *)tparam; | |
| 1644 | |
| 1645 if (tp->dim->op == TOKvar && | |
| 1646 ((VarExp *)tp->dim)->var->storage_class & STCtemplateparameter) | |
| 1647 { int i = templateIdentifierLookup(((VarExp *)tp->dim)->var->ident, parameters); | |
| 1648 // This code matches code in TypeInstance::deduceType() | |
| 1649 if (i == -1) | |
| 1650 goto Lnomatch; | |
| 1651 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 1652 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
| 1653 if (!tvp) | |
| 1654 goto Lnomatch; | |
| 1655 Expression *e = (Expression *)dedtypes->data[i]; | |
| 1656 if (e) | |
| 1657 { | |
| 1658 if (!dim->equals(e)) | |
| 1659 goto Lnomatch; | |
| 1660 } | |
| 1661 else | |
| 1662 { Type *vt = tvp->valType->semantic(0, sc); | |
| 1663 MATCH m = (MATCH)dim->implicitConvTo(vt); | |
| 1664 if (!m) | |
| 1665 goto Lnomatch; | |
| 1666 dedtypes->data[i] = dim; | |
| 1667 } | |
| 1668 } | |
| 1669 else if (dim->toInteger() != tp->dim->toInteger()) | |
| 1670 return MATCHnomatch; | |
| 1671 } | |
| 1672 else if (tparam->ty == Taarray) | |
| 1673 { | |
| 1674 TypeAArray *tp = (TypeAArray *)tparam; | |
| 1675 if (tp->index->ty == Tident) | |
| 1676 { TypeIdentifier *tident = (TypeIdentifier *)tp->index; | |
| 1677 | |
| 1678 if (tident->idents.dim == 0) | |
| 1679 { Identifier *id = tident->ident; | |
| 1680 | |
| 1681 for (size_t i = 0; i < parameters->dim; i++) | |
| 1682 { | |
| 1683 TemplateParameter *tp = (TemplateParameter *)parameters->data[i]; | |
| 1684 | |
| 1685 if (tp->ident->equals(id)) | |
| 1686 { // Found the corresponding template parameter | |
| 1687 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
| 1688 if (!tvp || !tvp->valType->isintegral()) | |
| 1689 goto Lnomatch; | |
| 1690 | |
| 1691 if (dedtypes->data[i]) | |
| 1692 { | |
| 1693 if (!dim->equals((Object *)dedtypes->data[i])) | |
| 1694 goto Lnomatch; | |
| 1695 } | |
| 1696 else | |
| 1697 { dedtypes->data[i] = (void *)dim; | |
| 1698 } | |
| 1699 return next->deduceType(sc, tparam->nextOf(), parameters, dedtypes); | |
| 1700 } | |
| 1701 } | |
| 1702 } | |
| 1703 } | |
| 1704 } | |
| 1705 else if (tparam->ty == Tarray) | |
| 1706 { MATCH m; | |
| 1707 | |
| 1708 m = next->deduceType(sc, tparam->nextOf(), parameters, dedtypes); | |
| 1709 if (m == MATCHexact) | |
| 1710 m = MATCHconvert; | |
| 1711 return m; | |
| 1712 } | |
| 1713 } | |
| 1714 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
| 1715 | |
| 1716 Lnomatch: | |
| 1717 return MATCHnomatch; | |
| 1718 } | |
| 1719 | |
| 1720 MATCH TypeAArray::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
| 1721 { | |
| 1722 #if 0 | |
| 1723 printf("TypeAArray::deduceType()\n"); | |
| 1724 printf("\tthis = %d, ", ty); print(); | |
| 1725 printf("\ttparam = %d, ", tparam->ty); tparam->print(); | |
| 1726 #endif | |
| 1727 | |
| 1728 // Extra check that index type must match | |
| 1729 if (tparam && tparam->ty == Taarray) | |
| 1730 { | |
| 1731 TypeAArray *tp = (TypeAArray *)tparam; | |
| 1732 if (!index->deduceType(sc, tp->index, parameters, dedtypes)) | |
| 1733 { | |
| 1734 return MATCHnomatch; | |
| 1735 } | |
| 1736 } | |
| 1737 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
| 1738 } | |
| 1739 | |
| 1740 MATCH TypeFunction::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
| 1741 { | |
| 1742 //printf("TypeFunction::deduceType()\n"); | |
| 1743 //printf("\tthis = %d, ", ty); print(); | |
| 1744 //printf("\ttparam = %d, ", tparam->ty); tparam->print(); | |
| 1745 | |
| 1746 // Extra check that function characteristics must match | |
| 1747 if (tparam && tparam->ty == Tfunction) | |
| 1748 { | |
| 1749 TypeFunction *tp = (TypeFunction *)tparam; | |
| 1750 if (varargs != tp->varargs || | |
| 1751 linkage != tp->linkage) | |
| 1752 return MATCHnomatch; | |
| 1753 | |
|
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|
1754 size_t nfargs = Parameter::dim(this->parameters); |
|
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|
1755 size_t nfparams = Parameter::dim(tp->parameters); |
| 336 | 1756 |
| 1757 /* See if tuple match | |
| 1758 */ | |
| 1759 if (nfparams > 0 && nfargs >= nfparams - 1) | |
| 1760 { | |
| 1761 /* See if 'A' of the template parameter matches 'A' | |
| 1762 * of the type of the last function parameter. | |
| 1763 */ | |
|
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1764 Parameter *fparam = Parameter::getNth(tp->parameters, nfparams - 1); |
| 336 | 1765 if (fparam->type->ty != Tident) |
| 1766 goto L1; | |
| 1767 TypeIdentifier *tid = (TypeIdentifier *)fparam->type; | |
| 1768 if (tid->idents.dim) | |
| 1769 goto L1; | |
| 1770 | |
| 1771 /* Look through parameters to find tuple matching tid->ident | |
| 1772 */ | |
| 1773 size_t tupi = 0; | |
| 1774 for (; 1; tupi++) | |
| 1775 { if (tupi == parameters->dim) | |
| 1776 goto L1; | |
| 1777 TemplateParameter *t = (TemplateParameter *)parameters->data[tupi]; | |
| 1778 TemplateTupleParameter *tup = t->isTemplateTupleParameter(); | |
| 1779 if (tup && tup->ident->equals(tid->ident)) | |
| 1780 break; | |
| 1781 } | |
| 1782 | |
| 1783 /* The types of the function arguments [nfparams - 1 .. nfargs] | |
| 1784 * now form the tuple argument. | |
| 1785 */ | |
| 1786 int tuple_dim = nfargs - (nfparams - 1); | |
| 1787 | |
| 1788 /* See if existing tuple, and whether it matches or not | |
| 1789 */ | |
| 1790 Object *o = (Object *)dedtypes->data[tupi]; | |
| 1791 if (o) | |
| 1792 { // Existing deduced argument must be a tuple, and must match | |
| 1793 Tuple *t = isTuple(o); | |
| 1794 if (!t || t->objects.dim != tuple_dim) | |
| 1795 return MATCHnomatch; | |
| 1796 for (size_t i = 0; i < tuple_dim; i++) | |
|
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1797 { Parameter *arg = Parameter::getNth(this->parameters, nfparams - 1 + i); |
| 336 | 1798 if (!arg->type->equals((Object *)t->objects.data[i])) |
| 1799 return MATCHnomatch; | |
| 1800 } | |
| 1801 } | |
| 1802 else | |
| 1803 { // Create new tuple | |
| 1804 Tuple *t = new Tuple(); | |
| 1805 t->objects.setDim(tuple_dim); | |
| 1806 for (size_t i = 0; i < tuple_dim; i++) | |
|
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1807 { Parameter *arg = Parameter::getNth(this->parameters, nfparams - 1 + i); |
| 336 | 1808 t->objects.data[i] = (void *)arg->type; |
| 1809 } | |
| 1810 dedtypes->data[tupi] = (void *)t; | |
| 1811 } | |
| 1812 nfparams--; // don't consider the last parameter for type deduction | |
| 1813 goto L2; | |
| 1814 } | |
| 1815 | |
| 1816 L1: | |
| 1817 if (nfargs != nfparams) | |
| 1818 return MATCHnomatch; | |
| 1819 L2: | |
| 1820 for (size_t i = 0; i < nfparams; i++) | |
| 1821 { | |
|
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|
1822 Parameter *a = Parameter::getNth(this->parameters, i); |
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1823 Parameter *ap = Parameter::getNth(tp->parameters, i); |
| 336 | 1824 if (a->storageClass != ap->storageClass || |
| 1825 !a->type->deduceType(sc, ap->type, parameters, dedtypes)) | |
| 1826 return MATCHnomatch; | |
| 1827 } | |
| 1828 } | |
| 1829 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
| 1830 } | |
| 1831 | |
| 1832 MATCH TypeIdentifier::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
| 1833 { | |
| 1834 // Extra check | |
| 1835 if (tparam && tparam->ty == Tident) | |
| 1836 { | |
| 1837 TypeIdentifier *tp = (TypeIdentifier *)tparam; | |
| 1838 | |
| 1839 for (int i = 0; i < idents.dim; i++) | |
| 1840 { | |
| 1841 Identifier *id1 = (Identifier *)idents.data[i]; | |
| 1842 Identifier *id2 = (Identifier *)tp->idents.data[i]; | |
| 1843 | |
| 1844 if (!id1->equals(id2)) | |
| 1845 return MATCHnomatch; | |
| 1846 } | |
| 1847 } | |
| 1848 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
| 1849 } | |
| 1850 | |
| 1851 MATCH TypeInstance::deduceType(Scope *sc, | |
| 1852 Type *tparam, TemplateParameters *parameters, | |
| 1853 Objects *dedtypes) | |
| 1854 { | |
|
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1855 #if 0 |
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1856 printf("TypeInstance::deduceType()\n"); |
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1857 printf("\tthis = %d, ", ty); print(); |
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1858 printf("\ttparam = %d, ", tparam->ty); tparam->print(); |
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1859 #endif |
| 336 | 1860 |
| 1861 // Extra check | |
| 1862 if (tparam && tparam->ty == Tinstance) | |
| 1863 { | |
| 1864 TypeInstance *tp = (TypeInstance *)tparam; | |
| 1865 | |
| 1866 //printf("tempinst->tempdecl = %p\n", tempinst->tempdecl); | |
| 1867 //printf("tp->tempinst->tempdecl = %p\n", tp->tempinst->tempdecl); | |
| 1868 if (!tp->tempinst->tempdecl) | |
| 1869 { //printf("tp->tempinst->name = '%s'\n", tp->tempinst->name->toChars()); | |
| 1870 if (!tp->tempinst->name->equals(tempinst->name)) | |
| 1871 { | |
| 1872 /* Handle case of: | |
| 1873 * template Foo(T : sa!(T), alias sa) | |
| 1874 */ | |
| 1875 int i = templateIdentifierLookup(tp->tempinst->name, parameters); | |
| 1876 if (i == -1) | |
| 1877 { /* Didn't find it as a parameter identifier. Try looking | |
| 1878 * it up and seeing if is an alias. See Bugzilla 1454 | |
| 1879 */ | |
| 1880 Dsymbol *s = tempinst->tempdecl->scope->search(0, tp->tempinst->name, NULL); | |
| 1881 if (s) | |
| 1882 { | |
| 1883 s = s->toAlias(); | |
| 1884 TemplateDeclaration *td = s->isTemplateDeclaration(); | |
| 1885 if (td && td == tempinst->tempdecl) | |
| 1886 goto L2; | |
| 1887 } | |
| 1888 goto Lnomatch; | |
| 1889 } | |
| 1890 TemplateParameter *tpx = (TemplateParameter *)parameters->data[i]; | |
| 1891 // This logic duplicates tpx->matchArg() | |
| 1892 TemplateAliasParameter *ta = tpx->isTemplateAliasParameter(); | |
| 1893 if (!ta) | |
| 1894 goto Lnomatch; | |
|
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1895 Object *sa = tempinst->tempdecl; |
| 336 | 1896 if (!sa) |
| 1897 goto Lnomatch; | |
| 1898 if (ta->specAlias && sa != ta->specAlias) | |
| 1899 goto Lnomatch; | |
| 1900 if (dedtypes->data[i]) | |
| 1901 { // Must match already deduced symbol | |
|
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1902 Object *s = (Object *)dedtypes->data[i]; |
| 336 | 1903 |
| 1904 if (s != sa) | |
| 1905 goto Lnomatch; | |
| 1906 } | |
| 1907 dedtypes->data[i] = sa; | |
| 1908 } | |
| 1909 } | |
| 1910 else if (tempinst->tempdecl != tp->tempinst->tempdecl) | |
| 1911 goto Lnomatch; | |
| 1912 | |
| 1913 L2: | |
| 1914 | |
| 1587 | 1915 for (int i = 0; 1; i++) |
| 336 | 1916 { |
| 1917 //printf("\ttest: tempinst->tiargs[%d]\n", i); | |
| 1587 | 1918 Object *o1; |
| 1919 if (i < tempinst->tiargs->dim) | |
| 1920 o1 = (Object *)tempinst->tiargs->data[i]; | |
| 1921 else if (i < tempinst->tdtypes.dim && i < tp->tempinst->tiargs->dim) | |
| 1922 // Pick up default arg | |
| 1923 o1 = (Object *)tempinst->tdtypes.data[i]; | |
| 1924 else | |
| 1925 break; | |
| 1926 | |
|
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1927 if (i >= tp->tempinst->tiargs->dim) |
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1928 goto Lnomatch; |
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1929 |
| 336 | 1930 Object *o2 = (Object *)tp->tempinst->tiargs->data[i]; |
| 1931 | |
| 1932 Type *t1 = isType(o1); | |
| 1933 Type *t2 = isType(o2); | |
| 1934 | |
| 1935 Expression *e1 = isExpression(o1); | |
| 1936 Expression *e2 = isExpression(o2); | |
| 1937 | |
|
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1938 Dsymbol *s1 = isDsymbol(o1); |
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1939 Dsymbol *s2 = isDsymbol(o2); |
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1940 |
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1941 Tuple *v1 = isTuple(o1); |
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1942 Tuple *v2 = isTuple(o2); |
| 336 | 1943 #if 0 |
| 1944 if (t1) printf("t1 = %s\n", t1->toChars()); | |
| 1945 if (t2) printf("t2 = %s\n", t2->toChars()); | |
| 1946 if (e1) printf("e1 = %s\n", e1->toChars()); | |
| 1947 if (e2) printf("e2 = %s\n", e2->toChars()); | |
|
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1948 if (s1) printf("s1 = %s\n", s1->toChars()); |
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1949 if (s2) printf("s2 = %s\n", s2->toChars()); |
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1950 if (v1) printf("v1 = %s\n", v1->toChars()); |
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1951 if (v2) printf("v2 = %s\n", v2->toChars()); |
| 336 | 1952 #endif |
| 1953 | |
|
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1954 TemplateTupleParameter *ttp; |
| 1587 | 1955 int j; |
|
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1956 if (t2 && |
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1957 t2->ty == Tident && |
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1958 i == tp->tempinst->tiargs->dim - 1 && |
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1959 i == tempinst->tempdecl->parameters->dim - 1 && |
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1960 (ttp = tempinst->tempdecl->isVariadic()) != NULL) |
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1961 { |
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1962 /* Given: |
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1963 * struct A(B...) {} |
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1964 * alias A!(int, float) X; |
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1965 * static if (!is(X Y == A!(Z), Z)) |
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1966 * deduce that Z is a tuple(int, float) |
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1967 */ |
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1968 |
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1969 j = templateParameterLookup(t2, parameters); |
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1970 if (j == -1) |
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1971 goto Lnomatch; |
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1972 |
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1973 /* Create tuple from remaining args |
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1974 */ |
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1975 Tuple *vt = new Tuple(); |
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1976 int vtdim = tempinst->tiargs->dim - i; |
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1977 vt->objects.setDim(vtdim); |
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1978 for (size_t k = 0; k < vtdim; k++) |
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1979 vt->objects.data[k] = (void *)tempinst->tiargs->data[i + k]; |
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1980 |
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1981 Tuple *v = (Tuple *)dedtypes->data[j]; |
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1982 if (v) |
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1983 { |
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1984 if (!match(v, vt, tempinst->tempdecl, sc)) |
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1985 goto Lnomatch; |
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1986 } |
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1987 else |
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1988 dedtypes->data[j] = vt; |
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1989 break; //return MATCHexact; |
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1990 } |
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1991 |
| 336 | 1992 if (t1 && t2) |
| 1993 { | |
| 1994 if (!t1->deduceType(sc, t2, parameters, dedtypes)) | |
| 1995 goto Lnomatch; | |
| 1996 } | |
| 1997 else if (e1 && e2) | |
| 1998 { | |
| 1999 if (!e1->equals(e2)) | |
| 2000 { if (e2->op == TOKvar) | |
| 2001 { | |
| 2002 /* | |
| 2003 * (T:Number!(e2), int e2) | |
| 2004 */ | |
| 2005 j = templateIdentifierLookup(((VarExp *)e2)->var->ident, parameters); | |
| 2006 goto L1; | |
| 2007 } | |
| 2008 goto Lnomatch; | |
| 2009 } | |
| 2010 } | |
| 2011 else if (e1 && t2 && t2->ty == Tident) | |
| 2012 { | |
| 2013 j = templateParameterLookup(t2, parameters); | |
| 2014 L1: | |
| 2015 if (j == -1) | |
| 2016 goto Lnomatch; | |
| 2017 TemplateParameter *tp = (TemplateParameter *)parameters->data[j]; | |
| 2018 // BUG: use tp->matchArg() instead of the following | |
| 2019 TemplateValueParameter *tv = tp->isTemplateValueParameter(); | |
| 2020 if (!tv) | |
| 2021 goto Lnomatch; | |
| 2022 Expression *e = (Expression *)dedtypes->data[j]; | |
| 2023 if (e) | |
| 2024 { | |
| 2025 if (!e1->equals(e)) | |
| 2026 goto Lnomatch; | |
| 2027 } | |
| 2028 else | |
| 2029 { Type *vt = tv->valType->semantic(0, sc); | |
| 2030 MATCH m = (MATCH)e1->implicitConvTo(vt); | |
| 2031 if (!m) | |
| 2032 goto Lnomatch; | |
| 2033 dedtypes->data[j] = e1; | |
| 2034 } | |
| 2035 } | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2036 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
|
2037 { |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2038 j = templateParameterLookup(t2, parameters); |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2039 if (j == -1) |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2040 goto Lnomatch; |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2041 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
|
2042 // 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
|
2043 TemplateAliasParameter *ta = tp->isTemplateAliasParameter(); |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2044 if (!ta) |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2045 goto Lnomatch; |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2046 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
|
2047 if (s) |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2048 { |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2049 if (!s1->equals(s)) |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2050 goto Lnomatch; |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2051 } |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2052 else |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2053 { |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2054 dedtypes->data[j] = s1; |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2055 } |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2056 } |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2057 else if (s1 && s2) |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2058 { |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2059 if (!s1->equals(s2)) |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2060 goto Lnomatch; |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2061 } |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2062 // BUG: Need to handle tuple parameters |
| 336 | 2063 else |
| 2064 goto Lnomatch; | |
| 2065 } | |
| 2066 } | |
| 2067 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
| 2068 | |
| 2069 Lnomatch: | |
| 2070 return MATCHnomatch; | |
| 2071 } | |
| 2072 | |
| 2073 MATCH TypeStruct::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
| 2074 { | |
| 2075 //printf("TypeStruct::deduceType()\n"); | |
| 2076 //printf("\tthis->parent = %s, ", sym->parent->toChars()); print(); | |
| 2077 //printf("\ttparam = %d, ", tparam->ty); tparam->print(); | |
| 2078 | |
| 2079 /* If this struct is a template struct, and we're matching | |
| 2080 * it against a template instance, convert the struct type | |
| 2081 * to a template instance, too, and try again. | |
| 2082 */ | |
| 2083 TemplateInstance *ti = sym->parent->isTemplateInstance(); | |
| 2084 | |
| 2085 if (tparam && tparam->ty == Tinstance) | |
| 2086 { | |
| 2087 if (ti && ti->toAlias() == sym) | |
| 2088 { | |
| 2089 TypeInstance *t = new TypeInstance(0, ti); | |
| 2090 return t->deduceType(sc, tparam, parameters, dedtypes); | |
| 2091 } | |
| 2092 | |
| 2093 /* Match things like: | |
| 2094 * S!(T).foo | |
| 2095 */ | |
| 2096 TypeInstance *tpi = (TypeInstance *)tparam; | |
| 2097 if (tpi->idents.dim) | |
| 2098 { Identifier *id = (Identifier *)tpi->idents.data[tpi->idents.dim - 1]; | |
| 2099 if (id->dyncast() == DYNCAST_IDENTIFIER && sym->ident->equals(id)) | |
| 2100 { | |
| 2101 Type *tparent = sym->parent->getType(); | |
| 2102 if (tparent) | |
| 2103 { | |
| 2104 /* Slice off the .foo in S!(T).foo | |
| 2105 */ | |
| 2106 tpi->idents.dim--; | |
| 2107 MATCH m = tparent->deduceType(sc, tpi, parameters, dedtypes); | |
| 2108 tpi->idents.dim++; | |
| 2109 return m; | |
| 2110 } | |
| 2111 } | |
| 2112 } | |
| 2113 } | |
| 2114 | |
| 2115 // Extra check | |
| 2116 if (tparam && tparam->ty == Tstruct) | |
| 2117 { | |
| 2118 TypeStruct *tp = (TypeStruct *)tparam; | |
| 2119 | |
| 2120 if (sym != tp->sym) | |
| 2121 return MATCHnomatch; | |
| 2122 } | |
| 2123 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
| 2124 } | |
| 2125 | |
| 2126 MATCH TypeEnum::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
| 2127 { | |
| 2128 // Extra check | |
| 2129 if (tparam && tparam->ty == Tenum) | |
| 2130 { | |
| 2131 TypeEnum *tp = (TypeEnum *)tparam; | |
| 2132 | |
| 2133 if (sym != tp->sym) | |
| 2134 return MATCHnomatch; | |
| 2135 } | |
| 2136 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
| 2137 } | |
| 2138 | |
| 2139 MATCH TypeTypedef::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
| 2140 { | |
| 2141 // Extra check | |
| 2142 if (tparam && tparam->ty == Ttypedef) | |
| 2143 { | |
| 2144 TypeTypedef *tp = (TypeTypedef *)tparam; | |
| 2145 | |
| 2146 if (sym != tp->sym) | |
| 2147 return MATCHnomatch; | |
| 2148 } | |
| 2149 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
| 2150 } | |
| 2151 | |
| 2152 MATCH TypeClass::deduceType(Scope *sc, Type *tparam, TemplateParameters *parameters, Objects *dedtypes) | |
| 2153 { | |
| 2154 //printf("TypeClass::deduceType(this = %s)\n", toChars()); | |
| 2155 | |
| 2156 /* If this class is a template class, and we're matching | |
| 2157 * it against a template instance, convert the class type | |
| 2158 * to a template instance, too, and try again. | |
| 2159 */ | |
| 2160 TemplateInstance *ti = sym->parent->isTemplateInstance(); | |
| 2161 | |
| 2162 if (tparam && tparam->ty == Tinstance) | |
| 2163 { | |
| 2164 if (ti && ti->toAlias() == sym) | |
| 2165 { | |
| 2166 TypeInstance *t = new TypeInstance(0, ti); | |
| 2167 return t->deduceType(sc, tparam, parameters, dedtypes); | |
| 2168 } | |
| 2169 | |
| 2170 /* Match things like: | |
| 2171 * S!(T).foo | |
| 2172 */ | |
| 2173 TypeInstance *tpi = (TypeInstance *)tparam; | |
| 2174 if (tpi->idents.dim) | |
| 2175 { Identifier *id = (Identifier *)tpi->idents.data[tpi->idents.dim - 1]; | |
| 2176 if (id->dyncast() == DYNCAST_IDENTIFIER && sym->ident->equals(id)) | |
| 2177 { | |
| 2178 Type *tparent = sym->parent->getType(); | |
| 2179 if (tparent) | |
| 2180 { | |
| 2181 /* Slice off the .foo in S!(T).foo | |
| 2182 */ | |
| 2183 tpi->idents.dim--; | |
| 2184 MATCH m = tparent->deduceType(sc, tpi, parameters, dedtypes); | |
| 2185 tpi->idents.dim++; | |
| 2186 return m; | |
| 2187 } | |
| 2188 } | |
| 2189 } | |
| 2190 } | |
| 2191 | |
| 2192 // Extra check | |
| 2193 if (tparam && tparam->ty == Tclass) | |
| 2194 { | |
| 2195 TypeClass *tp = (TypeClass *)tparam; | |
| 2196 | |
| 2197 //printf("\t%d\n", (MATCH) implicitConvTo(tp)); | |
| 2198 return (MATCH) implicitConvTo(tp); | |
| 2199 } | |
| 2200 return Type::deduceType(sc, tparam, parameters, dedtypes); | |
| 2201 } | |
| 2202 | |
| 2203 /* ======================== TemplateParameter =============================== */ | |
| 2204 | |
| 2205 TemplateParameter::TemplateParameter(Loc loc, Identifier *ident) | |
| 2206 { | |
| 2207 this->loc = loc; | |
| 2208 this->ident = ident; | |
| 2209 this->sparam = NULL; | |
| 2210 } | |
| 2211 | |
| 2212 TemplateTypeParameter *TemplateParameter::isTemplateTypeParameter() | |
| 2213 { | |
| 2214 return NULL; | |
| 2215 } | |
| 2216 | |
| 2217 TemplateValueParameter *TemplateParameter::isTemplateValueParameter() | |
| 2218 { | |
| 2219 return NULL; | |
| 2220 } | |
| 2221 | |
| 2222 TemplateAliasParameter *TemplateParameter::isTemplateAliasParameter() | |
| 2223 { | |
| 2224 return NULL; | |
| 2225 } | |
| 2226 | |
| 2227 TemplateTupleParameter *TemplateParameter::isTemplateTupleParameter() | |
| 2228 { | |
| 2229 return NULL; | |
| 2230 } | |
| 2231 | |
| 2232 #if DMDV2 | |
| 2233 TemplateThisParameter *TemplateParameter::isTemplateThisParameter() | |
| 2234 { | |
| 2235 return NULL; | |
| 2236 } | |
| 2237 #endif | |
| 2238 | |
| 2239 /* ======================== TemplateTypeParameter =========================== */ | |
| 2240 | |
| 2241 // type-parameter | |
| 2242 | |
| 2243 TemplateTypeParameter::TemplateTypeParameter(Loc loc, Identifier *ident, Type *specType, | |
| 2244 Type *defaultType) | |
| 2245 : TemplateParameter(loc, ident) | |
| 2246 { | |
| 2247 this->ident = ident; | |
| 2248 this->specType = specType; | |
| 2249 this->defaultType = defaultType; | |
| 2250 } | |
| 2251 | |
| 2252 TemplateTypeParameter *TemplateTypeParameter::isTemplateTypeParameter() | |
| 2253 { | |
| 2254 return this; | |
| 2255 } | |
| 2256 | |
| 2257 TemplateParameter *TemplateTypeParameter::syntaxCopy() | |
| 2258 { | |
| 2259 TemplateTypeParameter *tp = new TemplateTypeParameter(loc, ident, specType, defaultType); | |
| 2260 if (tp->specType) | |
| 2261 tp->specType = specType->syntaxCopy(); | |
| 2262 if (defaultType) | |
| 2263 tp->defaultType = defaultType->syntaxCopy(); | |
| 2264 return tp; | |
| 2265 } | |
| 2266 | |
| 2267 void TemplateTypeParameter::declareParameter(Scope *sc) | |
| 2268 { | |
| 2269 //printf("TemplateTypeParameter::declareParameter('%s')\n", ident->toChars()); | |
| 2270 TypeIdentifier *ti = new TypeIdentifier(loc, ident); | |
| 2271 sparam = new AliasDeclaration(loc, ident, ti); | |
| 2272 if (!sc->insert(sparam)) | |
| 2273 error(loc, "parameter '%s' multiply defined", ident->toChars()); | |
| 2274 } | |
| 2275 | |
| 2276 void TemplateTypeParameter::semantic(Scope *sc) | |
| 2277 { | |
| 2278 //printf("TemplateTypeParameter::semantic('%s')\n", ident->toChars()); | |
| 2279 if (specType) | |
| 2280 { | |
| 2281 specType = specType->semantic(loc, sc); | |
| 2282 } | |
| 2283 #if 0 // Don't do semantic() until instantiation | |
| 2284 if (defaultType) | |
| 2285 { | |
| 2286 defaultType = defaultType->semantic(loc, sc); | |
| 2287 } | |
| 2288 #endif | |
| 2289 } | |
| 2290 | |
| 2291 /**************************************** | |
| 2292 * Determine if two TemplateParameters are the same | |
| 2293 * as far as TemplateDeclaration overloading goes. | |
| 2294 * Returns: | |
| 2295 * 1 match | |
| 2296 * 0 no match | |
| 2297 */ | |
| 2298 | |
| 2299 int TemplateTypeParameter::overloadMatch(TemplateParameter *tp) | |
| 2300 { | |
| 2301 TemplateTypeParameter *ttp = tp->isTemplateTypeParameter(); | |
| 2302 | |
| 2303 if (ttp) | |
| 2304 { | |
| 2305 if (specType != ttp->specType) | |
| 2306 goto Lnomatch; | |
| 2307 | |
| 2308 if (specType && !specType->equals(ttp->specType)) | |
| 2309 goto Lnomatch; | |
| 2310 | |
| 2311 return 1; // match | |
| 2312 } | |
| 2313 | |
| 2314 Lnomatch: | |
| 2315 return 0; | |
| 2316 } | |
| 2317 | |
| 2318 /******************************************* | |
| 2319 * Match to a particular TemplateParameter. | |
| 2320 * Input: | |
| 2321 * i i'th argument | |
| 2322 * tiargs[] actual arguments to template instance | |
| 2323 * parameters[] template parameters | |
| 2324 * dedtypes[] deduced arguments to template instance | |
| 2325 * *psparam set to symbol declared and initialized to dedtypes[i] | |
| 2326 */ | |
| 2327 | |
| 2328 MATCH TemplateTypeParameter::matchArg(Scope *sc, Objects *tiargs, | |
| 2329 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
|
2330 Declaration **psparam, int flags) |
| 336 | 2331 { |
| 2332 //printf("TemplateTypeParameter::matchArg()\n"); | |
| 2333 Type *t; | |
| 2334 Object *oarg; | |
| 2335 MATCH m = MATCHexact; | |
| 2336 Type *ta; | |
| 2337 | |
| 2338 if (i < tiargs->dim) | |
| 2339 oarg = (Object *)tiargs->data[i]; | |
| 2340 else | |
| 2341 { // Get default argument instead | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2342 oarg = defaultArg(loc, sc); |
| 336 | 2343 if (!oarg) |
| 2344 { assert(i < dedtypes->dim); | |
| 2345 // It might have already been deduced | |
| 2346 oarg = (Object *)dedtypes->data[i]; | |
| 2347 if (!oarg) | |
| 2348 goto Lnomatch; | |
| 2349 } | |
| 2350 } | |
| 2351 | |
| 2352 ta = isType(oarg); | |
| 2353 if (!ta) | |
| 2354 goto Lnomatch; | |
| 2355 //printf("ta is %s\n", ta->toChars()); | |
| 2356 | |
| 2357 t = (Type *)dedtypes->data[i]; | |
| 2358 | |
| 2359 if (specType) | |
| 2360 { | |
| 2361 //printf("\tcalling deduceType(): ta is %s, specType is %s\n", ta->toChars(), specType->toChars()); | |
| 2362 MATCH m2 = ta->deduceType(sc, specType, parameters, dedtypes); | |
| 2363 if (m2 == MATCHnomatch) | |
| 2364 { //printf("\tfailed deduceType\n"); | |
| 2365 goto Lnomatch; | |
| 2366 } | |
| 2367 | |
| 2368 if (m2 < m) | |
| 2369 m = m2; | |
| 2370 t = (Type *)dedtypes->data[i]; | |
| 2371 } | |
| 2372 else | |
| 2373 { | |
| 2374 // So that matches with specializations are better | |
| 2375 m = MATCHconvert; | |
| 2376 if (t) | |
| 2377 { // Must match already deduced type | |
| 2378 | |
| 2379 m = MATCHexact; | |
| 2380 if (!t->equals(ta)) | |
| 2381 { //printf("t = %s ta = %s\n", t->toChars(), ta->toChars()); | |
| 2382 goto Lnomatch; | |
| 2383 } | |
| 2384 } | |
| 2385 } | |
| 2386 | |
| 2387 if (!t) | |
| 2388 { | |
| 2389 dedtypes->data[i] = ta; | |
| 2390 t = ta; | |
| 2391 } | |
| 2392 *psparam = new AliasDeclaration(loc, ident, t); | |
| 2393 //printf("\tm = %d\n", m); | |
| 2394 return m; | |
| 2395 | |
| 2396 Lnomatch: | |
| 2397 *psparam = NULL; | |
| 2398 //printf("\tm = %d\n", MATCHnomatch); | |
| 2399 return MATCHnomatch; | |
| 2400 } | |
| 2401 | |
| 2402 | |
| 2403 void TemplateTypeParameter::print(Object *oarg, Object *oded) | |
| 2404 { | |
| 2405 printf(" %s\n", ident->toChars()); | |
| 2406 | |
| 2407 Type *t = isType(oarg); | |
| 2408 Type *ta = isType(oded); | |
| 2409 | |
| 2410 assert(ta); | |
| 2411 | |
| 2412 if (specType) | |
| 2413 printf("\tSpecialization: %s\n", specType->toChars()); | |
| 2414 if (defaultType) | |
| 2415 printf("\tDefault: %s\n", defaultType->toChars()); | |
|
1607
207a8a438dea
Merge DMD r253: refactor: Argument => Parameter
Leandro Lucarella <llucax@gmail.com>
parents:
1587
diff
changeset
|
2416 printf("\tParameter: %s\n", t ? t->toChars() : "NULL"); |
| 336 | 2417 printf("\tDeduced Type: %s\n", ta->toChars()); |
| 2418 } | |
| 2419 | |
| 2420 | |
| 2421 void TemplateTypeParameter::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2422 { | |
| 2423 buf->writestring(ident->toChars()); | |
| 2424 if (specType) | |
| 2425 { | |
| 2426 buf->writestring(" : "); | |
| 2427 specType->toCBuffer(buf, NULL, hgs); | |
| 2428 } | |
| 2429 if (defaultType) | |
| 2430 { | |
| 2431 buf->writestring(" = "); | |
| 2432 defaultType->toCBuffer(buf, NULL, hgs); | |
| 2433 } | |
| 2434 } | |
| 2435 | |
| 2436 | |
| 2437 void *TemplateTypeParameter::dummyArg() | |
| 2438 { Type *t; | |
| 2439 | |
| 2440 if (specType) | |
| 2441 t = specType; | |
| 2442 else | |
| 2443 { // Use this for alias-parameter's too (?) | |
| 2444 t = new TypeIdentifier(loc, ident); | |
| 2445 } | |
| 2446 return (void *)t; | |
| 2447 } | |
| 2448 | |
| 2449 | |
| 2450 Object *TemplateTypeParameter::specialization() | |
| 2451 { | |
| 2452 return specType; | |
| 2453 } | |
| 2454 | |
| 2455 | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2456 Object *TemplateTypeParameter::defaultArg(Loc loc, Scope *sc) |
| 336 | 2457 { |
| 2458 Type *t; | |
| 2459 | |
| 2460 t = defaultType; | |
| 2461 if (t) | |
| 2462 { | |
| 2463 t = t->syntaxCopy(); | |
| 2464 t = t->semantic(loc, sc); | |
| 2465 } | |
| 2466 return t; | |
| 2467 } | |
| 2468 | |
| 2469 /* ======================== TemplateThisParameter =========================== */ | |
| 2470 | |
| 2471 #if DMDV2 | |
| 2472 // this-parameter | |
| 2473 | |
| 2474 TemplateThisParameter::TemplateThisParameter(Loc loc, Identifier *ident, | |
| 2475 Type *specType, | |
| 2476 Type *defaultType) | |
| 2477 : TemplateTypeParameter(loc, ident, specType, defaultType) | |
| 2478 { | |
| 2479 } | |
| 2480 | |
| 2481 TemplateThisParameter *TemplateThisParameter::isTemplateThisParameter() | |
| 2482 { | |
| 2483 return this; | |
| 2484 } | |
| 2485 | |
| 2486 TemplateParameter *TemplateThisParameter::syntaxCopy() | |
| 2487 { | |
| 2488 TemplateThisParameter *tp = new TemplateThisParameter(loc, ident, specType, defaultType); | |
| 2489 if (tp->specType) | |
| 2490 tp->specType = specType->syntaxCopy(); | |
| 2491 if (defaultType) | |
| 2492 tp->defaultType = defaultType->syntaxCopy(); | |
| 2493 return tp; | |
| 2494 } | |
| 2495 | |
| 2496 void TemplateThisParameter::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2497 { | |
| 2498 buf->writestring("this "); | |
| 2499 TemplateTypeParameter::toCBuffer(buf, hgs); | |
| 2500 } | |
| 2501 #endif | |
| 2502 | |
| 2503 /* ======================== TemplateAliasParameter ========================== */ | |
| 2504 | |
| 2505 // alias-parameter | |
| 2506 | |
| 2507 Dsymbol *TemplateAliasParameter::sdummy = NULL; | |
| 2508 | |
| 2509 TemplateAliasParameter::TemplateAliasParameter(Loc loc, Identifier *ident, Type *specAliasT, Type *defaultAlias) | |
| 2510 : TemplateParameter(loc, ident) | |
| 2511 { | |
| 2512 this->ident = ident; | |
| 2513 this->specAliasT = specAliasT; | |
| 2514 this->defaultAlias = defaultAlias; | |
| 2515 | |
| 2516 this->specAlias = NULL; | |
| 2517 } | |
| 2518 | |
| 2519 TemplateAliasParameter *TemplateAliasParameter::isTemplateAliasParameter() | |
| 2520 { | |
| 2521 return this; | |
| 2522 } | |
| 2523 | |
| 2524 TemplateParameter *TemplateAliasParameter::syntaxCopy() | |
| 2525 { | |
| 2526 TemplateAliasParameter *tp = new TemplateAliasParameter(loc, ident, specAliasT, defaultAlias); | |
| 2527 if (tp->specAliasT) | |
| 2528 tp->specAliasT = specAliasT->syntaxCopy(); | |
| 2529 if (defaultAlias) | |
| 2530 tp->defaultAlias = defaultAlias->syntaxCopy(); | |
| 2531 return tp; | |
| 2532 } | |
| 2533 | |
| 2534 void TemplateAliasParameter::declareParameter(Scope *sc) | |
| 2535 { | |
| 2536 TypeIdentifier *ti = new TypeIdentifier(loc, ident); | |
| 2537 sparam = new AliasDeclaration(loc, ident, ti); | |
| 2538 if (!sc->insert(sparam)) | |
| 2539 error(loc, "parameter '%s' multiply defined", ident->toChars()); | |
| 2540 } | |
| 2541 | |
| 2542 void TemplateAliasParameter::semantic(Scope *sc) | |
| 2543 { | |
| 2544 if (specAliasT) | |
| 2545 { | |
| 2546 specAlias = specAliasT->toDsymbol(sc); | |
| 2547 if (!specAlias) | |
| 2548 error(loc, "%s is not a symbol", specAliasT->toChars()); | |
| 2549 } | |
| 2550 #if 0 // Don't do semantic() until instantiation | |
| 2551 if (defaultAlias) | |
| 2552 defaultAlias = defaultAlias->semantic(loc, sc); | |
| 2553 #endif | |
| 2554 } | |
| 2555 | |
| 2556 int TemplateAliasParameter::overloadMatch(TemplateParameter *tp) | |
| 2557 { | |
| 2558 TemplateAliasParameter *tap = tp->isTemplateAliasParameter(); | |
| 2559 | |
| 2560 if (tap) | |
| 2561 { | |
| 2562 if (specAlias != tap->specAlias) | |
| 2563 goto Lnomatch; | |
| 2564 | |
| 2565 return 1; // match | |
| 2566 } | |
| 2567 | |
| 2568 Lnomatch: | |
| 2569 return 0; | |
| 2570 } | |
| 2571 | |
| 2572 MATCH TemplateAliasParameter::matchArg(Scope *sc, | |
| 2573 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
|
2574 Declaration **psparam, int flags) |
| 336 | 2575 { |
| 2576 Dsymbol *sa; | |
| 2577 Object *oarg; | |
| 2578 Expression *ea; | |
| 2579 | |
| 2580 //printf("TemplateAliasParameter::matchArg()\n"); | |
| 2581 | |
| 2582 if (i < tiargs->dim) | |
| 2583 oarg = (Object *)tiargs->data[i]; | |
| 2584 else | |
| 2585 { // Get default argument instead | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2586 oarg = defaultArg(loc, sc); |
| 336 | 2587 if (!oarg) |
| 2588 { assert(i < dedtypes->dim); | |
| 2589 // It might have already been deduced | |
| 2590 oarg = (Object *)dedtypes->data[i]; | |
| 2591 if (!oarg) | |
| 2592 goto Lnomatch; | |
| 2593 } | |
| 2594 } | |
| 2595 | |
| 2596 sa = getDsymbol(oarg); | |
| 2597 if (!sa) | |
| 2598 goto Lnomatch; | |
| 2599 | |
| 2600 if (specAlias) | |
| 2601 { | |
| 2602 if (!sa || sa == sdummy) | |
| 2603 goto Lnomatch; | |
| 2604 if (sa != specAlias) | |
| 2605 goto Lnomatch; | |
| 2606 } | |
| 2607 else if (dedtypes->data[i]) | |
| 2608 { // Must match already deduced symbol | |
| 2609 Dsymbol *s = (Dsymbol *)dedtypes->data[i]; | |
| 2610 | |
| 2611 if (!sa || s != sa) | |
| 2612 goto Lnomatch; | |
| 2613 } | |
| 2614 dedtypes->data[i] = sa; | |
| 2615 | |
| 2616 *psparam = new AliasDeclaration(loc, ident, sa); | |
| 2617 return MATCHexact; | |
| 2618 | |
| 2619 Lnomatch: | |
| 2620 *psparam = NULL; | |
| 2621 return MATCHnomatch; | |
| 2622 } | |
| 2623 | |
| 2624 | |
| 2625 void TemplateAliasParameter::print(Object *oarg, Object *oded) | |
| 2626 { | |
| 2627 printf(" %s\n", ident->toChars()); | |
| 2628 | |
| 2629 Dsymbol *sa = isDsymbol(oded); | |
| 2630 assert(sa); | |
| 2631 | |
|
1607
207a8a438dea
Merge DMD r253: refactor: Argument => Parameter
Leandro Lucarella <llucax@gmail.com>
parents:
1587
diff
changeset
|
2632 printf("\tParameter alias: %s\n", sa->toChars()); |
| 336 | 2633 } |
| 2634 | |
| 2635 void TemplateAliasParameter::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2636 { | |
| 2637 buf->writestring("alias "); | |
| 2638 buf->writestring(ident->toChars()); | |
| 2639 if (specAliasT) | |
| 2640 { | |
| 2641 buf->writestring(" : "); | |
| 2642 specAliasT->toCBuffer(buf, NULL, hgs); | |
| 2643 } | |
| 2644 if (defaultAlias) | |
| 2645 { | |
| 2646 buf->writestring(" = "); | |
| 2647 defaultAlias->toCBuffer(buf, NULL, hgs); | |
| 2648 } | |
| 2649 } | |
| 2650 | |
| 2651 | |
| 2652 void *TemplateAliasParameter::dummyArg() | |
| 2653 { Dsymbol *s; | |
| 2654 | |
| 2655 s = specAlias; | |
| 2656 if (!s) | |
| 2657 { | |
| 2658 if (!sdummy) | |
| 2659 sdummy = new Dsymbol(); | |
| 2660 s = sdummy; | |
| 2661 } | |
| 2662 return (void*)s; | |
| 2663 } | |
| 2664 | |
| 2665 | |
| 2666 Object *TemplateAliasParameter::specialization() | |
| 2667 { | |
| 2668 return specAliasT; | |
| 2669 } | |
| 2670 | |
| 2671 | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2672 Object *TemplateAliasParameter::defaultArg(Loc loc, Scope *sc) |
| 336 | 2673 { |
| 2674 Dsymbol *s = NULL; | |
| 2675 | |
| 2676 if (defaultAlias) | |
| 2677 { | |
| 2678 s = defaultAlias->toDsymbol(sc); | |
| 2679 if (!s) | |
| 2680 error("%s is not a symbol", defaultAlias->toChars()); | |
| 2681 } | |
| 2682 return s; | |
| 2683 } | |
| 2684 | |
| 2685 /* ======================== TemplateValueParameter ========================== */ | |
| 2686 | |
| 2687 // value-parameter | |
| 2688 | |
| 2689 Expression *TemplateValueParameter::edummy = NULL; | |
| 2690 | |
| 2691 TemplateValueParameter::TemplateValueParameter(Loc loc, Identifier *ident, Type *valType, | |
| 2692 Expression *specValue, Expression *defaultValue) | |
| 2693 : TemplateParameter(loc, ident) | |
| 2694 { | |
| 2695 this->ident = ident; | |
| 2696 this->valType = valType; | |
| 2697 this->specValue = specValue; | |
| 2698 this->defaultValue = defaultValue; | |
| 2699 } | |
| 2700 | |
| 2701 TemplateValueParameter *TemplateValueParameter::isTemplateValueParameter() | |
| 2702 { | |
| 2703 return this; | |
| 2704 } | |
| 2705 | |
| 2706 TemplateParameter *TemplateValueParameter::syntaxCopy() | |
| 2707 { | |
| 2708 TemplateValueParameter *tp = | |
| 2709 new TemplateValueParameter(loc, ident, valType, specValue, defaultValue); | |
| 2710 tp->valType = valType->syntaxCopy(); | |
| 2711 if (specValue) | |
| 2712 tp->specValue = specValue->syntaxCopy(); | |
| 2713 if (defaultValue) | |
| 2714 tp->defaultValue = defaultValue->syntaxCopy(); | |
| 2715 return tp; | |
| 2716 } | |
| 2717 | |
| 2718 void TemplateValueParameter::declareParameter(Scope *sc) | |
| 2719 { | |
| 2720 VarDeclaration *v = new VarDeclaration(loc, valType, ident, NULL); | |
| 2721 v->storage_class = STCtemplateparameter; | |
| 2722 if (!sc->insert(v)) | |
| 2723 error(loc, "parameter '%s' multiply defined", ident->toChars()); | |
| 2724 sparam = v; | |
| 2725 } | |
| 2726 | |
| 2727 void TemplateValueParameter::semantic(Scope *sc) | |
| 2728 { | |
| 2729 sparam->semantic(sc); | |
| 2730 valType = valType->semantic(loc, sc); | |
| 2731 if (!(valType->isintegral() || valType->isfloating() || valType->isString()) && | |
| 2732 valType->ty != Tident) | |
| 2733 error(loc, "arithmetic/string type expected for value-parameter, not %s", valType->toChars()); | |
| 2734 | |
| 2735 if (specValue) | |
| 2736 { Expression *e = specValue; | |
| 2737 | |
| 2738 e = e->semantic(sc); | |
| 2739 e = e->implicitCastTo(sc, valType); | |
| 2740 e = e->optimize(WANTvalue | WANTinterpret); | |
| 2741 if (e->op == TOKint64 || e->op == TOKfloat64 || | |
| 2742 e->op == TOKcomplex80 || e->op == TOKnull || e->op == TOKstring) | |
| 2743 specValue = e; | |
| 2744 //e->toInteger(); | |
| 2745 } | |
| 2746 | |
| 2747 #if 0 // defer semantic analysis to arg match | |
| 2748 if (defaultValue) | |
| 2749 { Expression *e = defaultValue; | |
| 2750 | |
| 2751 e = e->semantic(sc); | |
| 2752 e = e->implicitCastTo(sc, valType); | |
| 2753 e = e->optimize(WANTvalue | WANTinterpret); | |
| 2754 if (e->op == TOKint64) | |
| 2755 defaultValue = e; | |
| 2756 //e->toInteger(); | |
| 2757 } | |
| 2758 #endif | |
| 2759 } | |
| 2760 | |
| 2761 int TemplateValueParameter::overloadMatch(TemplateParameter *tp) | |
| 2762 { | |
| 2763 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
| 2764 | |
| 2765 if (tvp) | |
| 2766 { | |
| 2767 if (valType != tvp->valType) | |
| 2768 goto Lnomatch; | |
| 2769 | |
| 2770 if (valType && !valType->equals(tvp->valType)) | |
| 2771 goto Lnomatch; | |
| 2772 | |
| 2773 if (specValue != tvp->specValue) | |
| 2774 goto Lnomatch; | |
| 2775 | |
| 2776 return 1; // match | |
| 2777 } | |
| 2778 | |
| 2779 Lnomatch: | |
| 2780 return 0; | |
| 2781 } | |
| 2782 | |
| 2783 | |
| 2784 MATCH TemplateValueParameter::matchArg(Scope *sc, | |
| 2785 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
|
2786 Declaration **psparam, int flags) |
| 336 | 2787 { |
| 2788 //printf("TemplateValueParameter::matchArg()\n"); | |
| 2789 | |
| 2790 Initializer *init; | |
| 2791 Declaration *sparam; | |
| 2792 MATCH m = MATCHexact; | |
| 2793 Expression *ei; | |
| 2794 Object *oarg; | |
| 2795 | |
| 2796 if (i < tiargs->dim) | |
| 2797 oarg = (Object *)tiargs->data[i]; | |
| 2798 else | |
| 2799 { // Get default argument instead | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2800 oarg = defaultArg(loc, sc); |
| 336 | 2801 if (!oarg) |
| 2802 { assert(i < dedtypes->dim); | |
| 2803 // It might have already been deduced | |
| 2804 oarg = (Object *)dedtypes->data[i]; | |
| 2805 if (!oarg) | |
| 2806 goto Lnomatch; | |
| 2807 } | |
| 2808 } | |
| 2809 | |
| 2810 ei = isExpression(oarg); | |
| 2811 Type *vt; | |
| 2812 | |
| 2813 if (!ei && oarg) | |
| 2814 goto Lnomatch; | |
| 2815 | |
| 2816 if (specValue) | |
| 2817 { | |
| 2818 if (!ei || ei == edummy) | |
| 2819 goto Lnomatch; | |
| 2820 | |
| 2821 Expression *e = specValue; | |
| 2822 | |
| 2823 e = e->semantic(sc); | |
| 2824 e = e->implicitCastTo(sc, valType); | |
| 2825 e = e->optimize(WANTvalue | WANTinterpret); | |
| 2826 | |
| 2827 ei = ei->syntaxCopy(); | |
| 2828 ei = ei->semantic(sc); | |
| 2829 ei = ei->optimize(WANTvalue | WANTinterpret); | |
| 2830 //printf("ei: %s, %s\n", ei->toChars(), ei->type->toChars()); | |
| 2831 //printf("e : %s, %s\n", e->toChars(), e->type->toChars()); | |
| 2832 if (!ei->equals(e)) | |
| 2833 goto Lnomatch; | |
| 2834 } | |
| 2835 else if (dedtypes->data[i]) | |
| 2836 { // Must match already deduced value | |
| 2837 Expression *e = (Expression *)dedtypes->data[i]; | |
| 2838 | |
| 2839 if (!ei || !ei->equals(e)) | |
| 2840 goto Lnomatch; | |
| 2841 } | |
| 2842 Lmatch: | |
| 2843 //printf("valType: %s, ty = %d\n", valType->toChars(), valType->ty); | |
| 2844 vt = valType->semantic(0, sc); | |
| 2845 //printf("ei: %s, %s\n", ei->toChars(), ei->type->toChars()); | |
| 2846 if (ei->type) | |
| 2847 { | |
| 2848 m = (MATCH)ei->implicitConvTo(vt); | |
| 2849 //printf("m: %d\n", m); | |
| 2850 if (!m) | |
| 2851 goto Lnomatch; | |
| 2852 } | |
| 2853 dedtypes->data[i] = ei; | |
| 2854 | |
| 2855 init = new ExpInitializer(loc, ei); | |
| 2856 sparam = new VarDeclaration(loc, vt, ident, init); | |
| 2857 sparam->storage_class = STCconst; | |
| 2858 *psparam = sparam; | |
| 2859 return m; | |
| 2860 | |
| 2861 Lnomatch: | |
| 2862 //printf("\tno match\n"); | |
| 2863 *psparam = NULL; | |
| 2864 return MATCHnomatch; | |
| 2865 } | |
| 2866 | |
| 2867 | |
| 2868 void TemplateValueParameter::print(Object *oarg, Object *oded) | |
| 2869 { | |
| 2870 printf(" %s\n", ident->toChars()); | |
| 2871 | |
| 2872 Expression *ea = isExpression(oded); | |
| 2873 | |
| 2874 if (specValue) | |
| 2875 printf("\tSpecialization: %s\n", specValue->toChars()); | |
|
1607
207a8a438dea
Merge DMD r253: refactor: Argument => Parameter
Leandro Lucarella <llucax@gmail.com>
parents:
1587
diff
changeset
|
2876 printf("\tParameter Value: %s\n", ea ? ea->toChars() : "NULL"); |
| 336 | 2877 } |
| 2878 | |
| 2879 | |
| 2880 void TemplateValueParameter::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 2881 { | |
| 2882 valType->toCBuffer(buf, ident, hgs); | |
| 2883 if (specValue) | |
| 2884 { | |
| 2885 buf->writestring(" : "); | |
| 2886 specValue->toCBuffer(buf, hgs); | |
| 2887 } | |
| 2888 if (defaultValue) | |
| 2889 { | |
| 2890 buf->writestring(" = "); | |
| 2891 defaultValue->toCBuffer(buf, hgs); | |
| 2892 } | |
| 2893 } | |
| 2894 | |
| 2895 | |
| 2896 void *TemplateValueParameter::dummyArg() | |
| 2897 { Expression *e; | |
| 2898 | |
| 2899 e = specValue; | |
| 2900 if (!e) | |
| 2901 { | |
| 2902 // Create a dummy value | |
| 2903 if (!edummy) | |
| 2904 edummy = valType->defaultInit(); | |
| 2905 e = edummy; | |
| 2906 } | |
| 2907 return (void *)e; | |
| 2908 } | |
| 2909 | |
| 2910 | |
| 2911 Object *TemplateValueParameter::specialization() | |
| 2912 { | |
| 2913 return specValue; | |
| 2914 } | |
| 2915 | |
| 2916 | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
2917 Object *TemplateValueParameter::defaultArg(Loc loc, Scope *sc) |
| 336 | 2918 { |
| 2919 Expression *e = defaultValue; | |
| 2920 if (e) | |
| 2921 { | |
| 2922 e = e->syntaxCopy(); | |
| 2923 e = e->semantic(sc); | |
| 2924 #if DMDV2 | |
| 2925 if (e->op == TOKdefault) | |
| 2926 { DefaultInitExp *de = (DefaultInitExp *)e; | |
| 2927 e = de->resolve(loc, sc); | |
| 2928 } | |
| 2929 #endif | |
| 2930 } | |
| 2931 return e; | |
| 2932 } | |
| 2933 | |
| 2934 /* ======================== TemplateTupleParameter ========================== */ | |
| 2935 | |
| 2936 // variadic-parameter | |
| 2937 | |
| 2938 TemplateTupleParameter::TemplateTupleParameter(Loc loc, Identifier *ident) | |
| 2939 : TemplateParameter(loc, ident) | |
| 2940 { | |
| 2941 this->ident = ident; | |
| 2942 } | |
| 2943 | |
| 2944 TemplateTupleParameter *TemplateTupleParameter::isTemplateTupleParameter() | |
| 2945 { | |
| 2946 return this; | |
| 2947 } | |
| 2948 | |
| 2949 TemplateParameter *TemplateTupleParameter::syntaxCopy() | |
| 2950 { | |
| 2951 TemplateTupleParameter *tp = new TemplateTupleParameter(loc, ident); | |
| 2952 return tp; | |
| 2953 } | |
| 2954 | |
| 2955 void TemplateTupleParameter::declareParameter(Scope *sc) | |
| 2956 { | |
| 2957 TypeIdentifier *ti = new TypeIdentifier(loc, ident); | |
| 2958 sparam = new AliasDeclaration(loc, ident, ti); | |
| 2959 if (!sc->insert(sparam)) | |
| 2960 error(loc, "parameter '%s' multiply defined", ident->toChars()); | |
| 2961 } | |
| 2962 | |
| 2963 void TemplateTupleParameter::semantic(Scope *sc) | |
| 2964 { | |
| 2965 } | |
| 2966 | |
| 2967 int TemplateTupleParameter::overloadMatch(TemplateParameter *tp) | |
| 2968 { | |
| 2969 TemplateTupleParameter *tvp = tp->isTemplateTupleParameter(); | |
| 2970 | |
| 2971 if (tvp) | |
| 2972 { | |
| 2973 return 1; // match | |
| 2974 } | |
| 2975 | |
| 2976 Lnomatch: | |
| 2977 return 0; | |
| 2978 } | |
| 2979 | |
| 2980 MATCH TemplateTupleParameter::matchArg(Scope *sc, | |
| 2981 Objects *tiargs, int i, TemplateParameters *parameters, | |
| 2982 Objects *dedtypes, | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
2983 Declaration **psparam, int flags) |
| 336 | 2984 { |
| 2985 //printf("TemplateTupleParameter::matchArg()\n"); | |
| 2986 | |
| 2987 /* The rest of the actual arguments (tiargs[]) form the match | |
| 2988 * for the variadic parameter. | |
| 2989 */ | |
| 2990 assert(i + 1 == dedtypes->dim); // must be the last one | |
| 2991 Tuple *ovar; | |
| 2992 if (i + 1 == tiargs->dim && isTuple((Object *)tiargs->data[i])) | |
| 2993 ovar = isTuple((Object *)tiargs->data[i]); | |
| 2994 else | |
| 2995 { | |
| 2996 ovar = new Tuple(); | |
| 2997 //printf("ovar = %p\n", ovar); | |
| 2998 if (i < tiargs->dim) | |
| 2999 { | |
| 3000 //printf("i = %d, tiargs->dim = %d\n", i, tiargs->dim); | |
| 3001 ovar->objects.setDim(tiargs->dim - i); | |
| 3002 for (size_t j = 0; j < ovar->objects.dim; j++) | |
| 3003 ovar->objects.data[j] = tiargs->data[i + j]; | |
| 3004 } | |
| 3005 } | |
| 3006 *psparam = new TupleDeclaration(loc, ident, &ovar->objects); | |
| 3007 dedtypes->data[i] = (void *)ovar; | |
| 3008 return MATCHexact; | |
| 3009 } | |
| 3010 | |
| 3011 | |
| 3012 void TemplateTupleParameter::print(Object *oarg, Object *oded) | |
| 3013 { | |
| 3014 printf(" %s... [", ident->toChars()); | |
| 3015 Tuple *v = isTuple(oded); | |
| 3016 assert(v); | |
| 3017 | |
| 3018 //printf("|%d| ", v->objects.dim); | |
| 3019 for (int i = 0; i < v->objects.dim; i++) | |
| 3020 { | |
| 3021 if (i) | |
| 3022 printf(", "); | |
| 3023 | |
| 3024 Object *o = (Object *)v->objects.data[i]; | |
| 3025 | |
| 3026 Dsymbol *sa = isDsymbol(o); | |
| 3027 if (sa) | |
| 3028 printf("alias: %s", sa->toChars()); | |
| 3029 | |
| 3030 Type *ta = isType(o); | |
| 3031 if (ta) | |
| 3032 printf("type: %s", ta->toChars()); | |
| 3033 | |
| 3034 Expression *ea = isExpression(o); | |
| 3035 if (ea) | |
| 3036 printf("exp: %s", ea->toChars()); | |
| 3037 | |
| 3038 assert(!isTuple(o)); // no nested Tuple arguments | |
| 3039 } | |
| 3040 | |
| 3041 printf("]\n"); | |
| 3042 } | |
| 3043 | |
| 3044 void TemplateTupleParameter::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 3045 { | |
| 3046 buf->writestring(ident->toChars()); | |
| 3047 buf->writestring("..."); | |
| 3048 } | |
| 3049 | |
| 3050 | |
| 3051 void *TemplateTupleParameter::dummyArg() | |
| 3052 { | |
| 3053 return NULL; | |
| 3054 } | |
| 3055 | |
| 3056 | |
| 3057 Object *TemplateTupleParameter::specialization() | |
| 3058 { | |
| 3059 return NULL; | |
| 3060 } | |
| 3061 | |
| 3062 | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3063 Object *TemplateTupleParameter::defaultArg(Loc loc, Scope *sc) |
| 336 | 3064 { |
| 3065 return NULL; | |
| 3066 } | |
| 3067 | |
| 3068 /* ======================== TemplateInstance ================================ */ | |
| 3069 | |
| 3070 TemplateInstance::TemplateInstance(Loc loc, Identifier *ident) | |
| 3071 : ScopeDsymbol(NULL) | |
| 3072 { | |
| 3073 #if LOG | |
| 3074 printf("TemplateInstance(this = %p, ident = '%s')\n", this, ident ? ident->toChars() : "null"); | |
| 3075 #endif | |
| 3076 this->loc = loc; | |
| 3077 this->name = ident; | |
| 3078 this->tiargs = NULL; | |
| 3079 this->tempdecl = NULL; | |
| 3080 this->inst = NULL; | |
|
1367
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Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
3081 this->tinst = NULL; |
| 336 | 3082 this->argsym = NULL; |
| 3083 this->aliasdecl = NULL; | |
| 1587 | 3084 this->semanticRun = 0; |
| 336 | 3085 this->semantictiargsdone = 0; |
| 3086 this->withsym = NULL; | |
| 3087 this->nest = 0; | |
| 3088 this->havetempdecl = 0; | |
| 3089 this->isnested = NULL; | |
| 3090 this->errors = 0; | |
|
948
780530d1cad3
Revert templates to old behavior.
Christian Kamm <kamm incasoftware de>
parents:
946
diff
changeset
|
3091 |
|
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
3092 #if IN_LLVM |
|
948
780530d1cad3
Revert templates to old behavior.
Christian Kamm <kamm incasoftware de>
parents:
946
diff
changeset
|
3093 // LDC |
|
1067
7ce8355fbcc6
Improved template emission control for singleobj building.
Christian Kamm <kamm incasoftware de>
parents:
948
diff
changeset
|
3094 this->emittedInModule = NULL; |
|
948
780530d1cad3
Revert templates to old behavior.
Christian Kamm <kamm incasoftware de>
parents:
946
diff
changeset
|
3095 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
|
3096 #endif |
| 336 | 3097 } |
| 3098 | |
|
875
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Merged DMD 1.038
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parents:
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diff
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|
3099 /***************** |
|
330f999ade44
Merged DMD 1.038
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parents:
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changeset
|
3100 * This constructor is only called when we figured out which function |
|
330f999ade44
Merged DMD 1.038
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parents:
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changeset
|
3101 * template to instantiate. |
|
330f999ade44
Merged DMD 1.038
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parents:
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changeset
|
3102 */ |
| 336 | 3103 |
| 3104 TemplateInstance::TemplateInstance(Loc loc, TemplateDeclaration *td, Objects *tiargs) | |
| 3105 : ScopeDsymbol(NULL) | |
| 3106 { | |
| 3107 #if LOG | |
| 3108 printf("TemplateInstance(this = %p, tempdecl = '%s')\n", this, td->toChars()); | |
| 3109 #endif | |
| 3110 this->loc = loc; | |
| 3111 this->name = td->ident; | |
| 3112 this->tiargs = tiargs; | |
| 3113 this->tempdecl = td; | |
| 3114 this->inst = NULL; | |
|
1367
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Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
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changeset
|
3115 this->tinst = NULL; |
| 336 | 3116 this->argsym = NULL; |
| 3117 this->aliasdecl = NULL; | |
| 1587 | 3118 this->semanticRun = 0; |
| 336 | 3119 this->semantictiargsdone = 1; |
| 3120 this->withsym = NULL; | |
| 3121 this->nest = 0; | |
| 3122 this->havetempdecl = 1; | |
| 3123 this->isnested = NULL; | |
| 3124 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
|
3125 |
|
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
3126 #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
|
3127 // LDC |
|
1478
4dca8ed9d8b7
Fix #318 by making a list of all seen template instances in a module for
Christian Kamm <kamm incasoftware de>
parents:
1367
diff
changeset
|
3128 this->emittedInModule = 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
|
3129 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
|
3130 #endif |
| 336 | 3131 |
| 3132 assert((size_t)tempdecl->scope > 0x10000); | |
| 3133 } | |
| 3134 | |
| 3135 | |
| 3136 Objects *TemplateInstance::arraySyntaxCopy(Objects *objs) | |
| 3137 { | |
| 3138 Objects *a = NULL; | |
| 3139 if (objs) | |
| 3140 { a = new Objects(); | |
| 3141 a->setDim(objs->dim); | |
| 3142 for (size_t i = 0; i < objs->dim; i++) | |
| 3143 { | |
| 3144 Type *ta = isType((Object *)objs->data[i]); | |
| 3145 if (ta) | |
| 3146 a->data[i] = ta->syntaxCopy(); | |
| 3147 else | |
| 3148 { | |
| 3149 Expression *ea = isExpression((Object *)objs->data[i]); | |
| 3150 assert(ea); | |
| 3151 a->data[i] = ea->syntaxCopy(); | |
| 3152 } | |
| 3153 } | |
| 3154 } | |
| 3155 return a; | |
| 3156 } | |
| 3157 | |
| 3158 Dsymbol *TemplateInstance::syntaxCopy(Dsymbol *s) | |
| 3159 { | |
| 3160 TemplateInstance *ti; | |
| 3161 | |
| 3162 if (s) | |
| 3163 ti = (TemplateInstance *)s; | |
| 3164 else | |
| 3165 ti = new TemplateInstance(loc, name); | |
| 3166 | |
| 3167 ti->tiargs = arraySyntaxCopy(tiargs); | |
| 3168 | |
| 3169 ScopeDsymbol::syntaxCopy(ti); | |
| 3170 return ti; | |
| 3171 } | |
| 3172 | |
| 3173 | |
| 3174 void TemplateInstance::semantic(Scope *sc) | |
| 3175 { | |
| 3176 if (global.errors) | |
| 3177 { | |
| 3178 if (!global.gag) | |
| 3179 { | |
| 3180 /* Trying to soldier on rarely generates useful messages | |
| 3181 * at this point. | |
| 3182 */ | |
| 3183 fatal(); | |
| 3184 } | |
| 3185 return; | |
| 3186 } | |
| 3187 #if LOG | |
| 3188 printf("\n+TemplateInstance::semantic('%s', this=%p)\n", toChars(), this); | |
| 3189 #endif | |
| 3190 if (inst) // if semantic() was already run | |
| 3191 { | |
| 3192 #if LOG | |
| 3193 printf("-TemplateInstance::semantic('%s', this=%p) already run\n", inst->toChars(), inst); | |
| 3194 #endif | |
| 3195 return; | |
| 3196 } | |
| 3197 | |
|
1367
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
3198 // get the enclosing template instance from the scope tinst |
|
8026319762be
Merged DMD 1.045 !!!
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parents:
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diff
changeset
|
3199 tinst = sc->tinst; |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
3200 |
| 1587 | 3201 if (semanticRun != 0) |
| 336 | 3202 { |
| 3203 error(loc, "recursive template expansion"); | |
| 3204 // inst = this; | |
| 3205 return; | |
| 3206 } | |
| 1587 | 3207 semanticRun = 1; |
| 336 | 3208 |
|
561
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
3209 // 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
|
3210 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
|
3211 |
|
1714836f2c0b
Mostly rewrite debug info generation in terms of llvm/Analysis/DebugInfo.h.
Christian Kamm <kamm incasoftware de>
parents:
940
diff
changeset
|
3212 // 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
|
3213 if (tinst) |
|
1714836f2c0b
Mostly rewrite debug info generation in terms of llvm/Analysis/DebugInfo.h.
Christian Kamm <kamm incasoftware de>
parents:
940
diff
changeset
|
3214 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
|
3215 else |
|
1714836f2c0b
Mostly rewrite debug info generation in terms of llvm/Analysis/DebugInfo.h.
Christian Kamm <kamm incasoftware de>
parents:
940
diff
changeset
|
3216 tmodule = sc->module; |
|
948
780530d1cad3
Revert templates to old behavior.
Christian Kamm <kamm incasoftware de>
parents:
946
diff
changeset
|
3217 //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
|
3218 |
| 336 | 3219 #if LOG |
| 3220 printf("\tdo semantic\n"); | |
| 3221 #endif | |
| 3222 if (havetempdecl) | |
| 3223 { | |
| 3224 assert((size_t)tempdecl->scope > 0x10000); | |
| 3225 // Deduce tdtypes | |
| 3226 tdtypes.setDim(tempdecl->parameters->dim); | |
| 3227 if (!tempdecl->matchWithInstance(this, &tdtypes, 0)) | |
| 3228 { | |
| 3229 error("incompatible arguments for template instantiation"); | |
| 3230 inst = this; | |
| 3231 return; | |
| 3232 } | |
| 3233 } | |
| 3234 else | |
| 3235 { | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3236 /* 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
|
3237 * (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
|
3238 */ |
| 336 | 3239 semanticTiargs(sc); |
| 3240 | |
| 3241 tempdecl = findTemplateDeclaration(sc); | |
| 3242 if (tempdecl) | |
| 3243 tempdecl = findBestMatch(sc); | |
| 3244 if (!tempdecl || global.errors) | |
| 3245 { inst = this; | |
| 3246 //printf("error return %p, %d\n", tempdecl, global.errors); | |
| 3247 return; // error recovery | |
| 3248 } | |
| 3249 } | |
| 3250 | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3251 hasNestedArgs(tiargs); |
| 336 | 3252 |
| 3253 /* See if there is an existing TemplateInstantiation that already | |
| 3254 * implements the typeargs. If so, just refer to that one instead. | |
| 3255 */ | |
| 3256 | |
| 3257 for (size_t i = 0; i < tempdecl->instances.dim; i++) | |
| 3258 { | |
| 3259 TemplateInstance *ti = (TemplateInstance *)tempdecl->instances.data[i]; | |
| 3260 #if LOG | |
| 3261 printf("\t%s: checking for match with instance %d (%p): '%s'\n", toChars(), i, ti, ti->toChars()); | |
| 3262 #endif | |
| 3263 assert(tdtypes.dim == ti->tdtypes.dim); | |
| 3264 | |
| 3265 // Nesting must match | |
| 3266 if (isnested != ti->isnested) | |
|
1618
a87f1d6ff48e
Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
parents:
1615
diff
changeset
|
3267 { |
|
a87f1d6ff48e
Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
parents:
1615
diff
changeset
|
3268 //printf("test2 isnested %s ti->isnested %s\n", isnested ? isnested->toChars() : "", ti->isnested ? ti->isnested->toChars() : ""); |
| 336 | 3269 continue; |
|
1618
a87f1d6ff48e
Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
parents:
1615
diff
changeset
|
3270 } |
| 336 | 3271 #if 0 |
| 3272 if (isnested && sc->parent != ti->parent) | |
| 3273 continue; | |
| 3274 #endif | |
| 3275 for (size_t j = 0; j < tdtypes.dim; j++) | |
| 3276 { Object *o1 = (Object *)tdtypes.data[j]; | |
| 3277 Object *o2 = (Object *)ti->tdtypes.data[j]; | |
| 3278 if (!match(o1, o2, tempdecl, sc)) | |
|
1618
a87f1d6ff48e
Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
parents:
1615
diff
changeset
|
3279 { |
| 336 | 3280 goto L1; |
|
1618
a87f1d6ff48e
Merge DMD r303: harmonize
Leandro Lucarella <llucax@gmail.com>
parents:
1615
diff
changeset
|
3281 } |
| 336 | 3282 } |
| 3283 | |
| 3284 // It's a match | |
| 3285 inst = ti; | |
| 3286 parent = ti->parent; | |
| 3287 #if LOG | |
| 3288 printf("\tit's a match with instance %p\n", inst); | |
| 3289 #endif | |
| 3290 return; | |
| 3291 | |
| 3292 L1: | |
| 3293 ; | |
| 3294 } | |
| 3295 | |
| 3296 /* So, we need to implement 'this' instance. | |
| 3297 */ | |
| 3298 #if LOG | |
| 3299 printf("\timplement template instance '%s'\n", toChars()); | |
| 3300 #endif | |
| 3301 unsigned errorsave = global.errors; | |
| 3302 inst = this; | |
| 3303 int tempdecl_instance_idx = tempdecl->instances.dim; | |
| 3304 tempdecl->instances.push(this); | |
| 3305 parent = tempdecl->parent; | |
| 3306 //printf("parent = '%s'\n", parent->kind()); | |
| 3307 | |
| 3308 ident = genIdent(); // need an identifier for name mangling purposes. | |
| 3309 | |
| 3310 #if 1 | |
| 3311 if (isnested) | |
| 3312 parent = isnested; | |
| 3313 #endif | |
| 3314 //printf("parent = '%s'\n", parent->kind()); | |
| 3315 | |
| 3316 // Add 'this' to the enclosing scope's members[] so the semantic routines | |
| 3317 // will get called on the instance members | |
| 3318 #if 1 | |
| 3319 int dosemantic3 = 0; | |
| 3320 { Array *a; | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3321 |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3322 Scope *scx = sc; |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
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|
3323 #if 0 |
|
330f999ade44
Merged DMD 1.038
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parents:
664
diff
changeset
|
3324 for (scx = sc; scx; scx = scx->enclosing) |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
changeset
|
3325 if (scx->scopesym) |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3326 break; |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3327 #endif |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3328 |
|
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3329 //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
|
3330 if (scx && scx->scopesym && |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3331 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
|
3332 #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
|
3333 /* 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
|
3334 * 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
|
3335 * 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
|
3336 * |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3337 * see bugzilla 2500. |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3338 */ |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3339 && !scx->module->selfImports() |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3340 #endif |
|
875
330f999ade44
Merged DMD 1.038
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parents:
664
diff
changeset
|
3341 ) |
| 336 | 3342 { |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3343 //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
|
3344 a = scx->scopesym->members; |
| 336 | 3345 } |
| 3346 else | |
| 3347 { Module *m = sc->module->importedFrom; | |
| 3348 //printf("\t2: adding to module %s instead of module %s\n", m->toChars(), sc->module->toChars()); | |
| 3349 a = m->members; | |
| 1587 | 3350 if (m->semanticRun >= 3) |
| 336 | 3351 dosemantic3 = 1; |
| 3352 } | |
| 3353 for (int i = 0; 1; i++) | |
| 3354 { | |
| 3355 if (i == a->dim) | |
| 3356 { | |
| 3357 a->push(this); | |
| 3358 break; | |
| 3359 } | |
| 3360 if (this == (Dsymbol *)a->data[i]) // if already in Array | |
| 3361 break; | |
| 3362 } | |
| 3363 } | |
| 3364 #endif | |
| 3365 | |
| 3366 // Copy the syntax trees from the TemplateDeclaration | |
| 3367 members = Dsymbol::arraySyntaxCopy(tempdecl->members); | |
| 3368 | |
| 3369 // Create our own scope for the template parameters | |
| 3370 Scope *scope = tempdecl->scope; | |
| 1587 | 3371 if (!tempdecl->semanticRun) |
| 336 | 3372 { |
| 1587 | 3373 error("template instantiation %s forward references template declaration %s\n", toChars(), tempdecl->toChars()); |
| 336 | 3374 return; |
| 3375 } | |
| 3376 | |
| 3377 #if LOG | |
| 3378 printf("\tcreate scope for template parameters '%s'\n", toChars()); | |
| 3379 #endif | |
| 3380 argsym = new ScopeDsymbol(); | |
| 3381 argsym->parent = scope->parent; | |
| 3382 scope = scope->push(argsym); | |
| 3383 | |
| 3384 // 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
|
3385 Scope *paramscope = scope->push(); |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3386 paramscope->stc = 0; |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3387 declareParameters(paramscope); |
|
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3388 paramscope->pop(); |
| 336 | 3389 |
| 3390 // Add members of template instance to template instance symbol table | |
| 3391 // parent = scope->scopesym; | |
| 3392 symtab = new DsymbolTable(); | |
| 3393 int memnum = 0; | |
| 3394 for (int i = 0; i < members->dim; i++) | |
| 3395 { | |
| 3396 Dsymbol *s = (Dsymbol *)members->data[i]; | |
| 3397 #if LOG | |
| 3398 printf("\t[%d] adding member '%s' %p kind %s to '%s', memnum = %d\n", i, s->toChars(), s, s->kind(), this->toChars(), memnum); | |
| 3399 #endif | |
| 3400 memnum |= s->addMember(scope, this, memnum); | |
| 3401 } | |
| 3402 #if LOG | |
| 3403 printf("adding members done\n"); | |
| 3404 #endif | |
| 3405 | |
| 3406 /* See if there is only one member of template instance, and that | |
| 3407 * member has the same name as the template instance. | |
| 3408 * If so, this template instance becomes an alias for that member. | |
| 3409 */ | |
| 3410 //printf("members->dim = %d\n", members->dim); | |
| 3411 if (members->dim) | |
| 3412 { | |
| 3413 Dsymbol *s; | |
| 3414 if (Dsymbol::oneMembers(members, &s) && s) | |
| 3415 { | |
| 3416 //printf("s->kind = '%s'\n", s->kind()); | |
| 3417 //s->print(); | |
| 3418 //printf("'%s', '%s'\n", s->ident->toChars(), tempdecl->ident->toChars()); | |
| 3419 if (s->ident && s->ident->equals(tempdecl->ident)) | |
| 3420 { | |
| 3421 //printf("setting aliasdecl\n"); | |
| 3422 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
|
3423 |
|
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
3424 #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
|
3425 // 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
|
3426 if (tempdecl->llvmInternal) { |
|
d33b0d4b816a
Make sure instantiations of template intrinsics are marked as intrinsics.
Frits van Bommel <fvbommel wxs.nl>
parents:
1067
diff
changeset
|
3427 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
|
3428 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
|
3429 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
|
3430 } |
|
d33b0d4b816a
Make sure instantiations of template intrinsics are marked as intrinsics.
Frits van Bommel <fvbommel wxs.nl>
parents:
1067
diff
changeset
|
3431 } |
|
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
3432 #endif |
| 336 | 3433 } |
| 3434 } | |
| 3435 } | |
| 3436 | |
| 3437 // Do semantic() analysis on template instance members | |
| 3438 #if LOG | |
| 3439 printf("\tdo semantic() on template instance members '%s'\n", toChars()); | |
| 3440 #endif | |
| 3441 Scope *sc2; | |
| 3442 sc2 = scope->push(this); | |
| 3443 //printf("isnested = %d, sc->parent = %s\n", isnested, sc->parent->toChars()); | |
| 3444 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
|
3445 sc2->tinst = this; |
| 336 | 3446 |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3447 #if WINDOWS_SEH |
| 336 | 3448 __try |
| 3449 { | |
| 3450 #endif | |
|
1367
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
3451 static int nest; |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
3452 //printf("%d\n", nest); |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
3453 if (++nest > 500) |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
3454 { |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
3455 global.gag = 0; // ensure error message gets printed |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
3456 error("recursive expansion"); |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
3457 fatal(); |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
3458 } |
| 336 | 3459 for (int i = 0; i < members->dim; i++) |
| 3460 { | |
| 3461 Dsymbol *s = (Dsymbol *)members->data[i]; | |
| 3462 //printf("\t[%d] semantic on '%s' %p kind %s in '%s'\n", i, s->toChars(), s, s->kind(), this->toChars()); | |
| 3463 //printf("test: isnested = %d, sc2->parent = %s\n", isnested, sc2->parent->toChars()); | |
| 3464 // if (isnested) | |
| 3465 // s->parent = sc->parent; | |
| 3466 //printf("test3: isnested = %d, s->parent = %s\n", isnested, s->parent->toChars()); | |
| 3467 s->semantic(sc2); | |
| 3468 //printf("test4: isnested = %d, s->parent = %s\n", isnested, s->parent->toChars()); | |
| 3469 sc2->module->runDeferredSemantic(); | |
| 3470 } | |
|
1367
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
3471 --nest; |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3472 #if WINDOWS_SEH |
| 336 | 3473 } |
| 3474 __except (__ehfilter(GetExceptionInformation())) | |
| 3475 { | |
| 3476 global.gag = 0; // ensure error message gets printed | |
| 3477 error("recursive expansion"); | |
| 3478 fatal(); | |
| 3479 } | |
| 3480 #endif | |
| 3481 | |
| 3482 /* If any of the instantiation members didn't get semantic() run | |
| 3483 * on them due to forward references, we cannot run semantic2() | |
| 3484 * or semantic3() yet. | |
| 3485 */ | |
| 3486 for (size_t i = 0; i < Module::deferred.dim; i++) | |
| 3487 { Dsymbol *sd = (Dsymbol *)Module::deferred.data[i]; | |
| 3488 | |
| 3489 if (sd->parent == this) | |
| 3490 goto Laftersemantic; | |
| 3491 } | |
| 3492 | |
| 3493 /* The problem is when to parse the initializer for a variable. | |
| 3494 * Perhaps VarDeclaration::semantic() should do it like it does | |
| 3495 * for initializers inside a function. | |
| 3496 */ | |
| 3497 // if (sc->parent->isFuncDeclaration()) | |
| 3498 | |
| 3499 /* BUG 782: this has problems if the classes this depends on | |
| 3500 * are forward referenced. Find a way to defer semantic() | |
| 3501 * on this template. | |
| 3502 */ | |
| 3503 semantic2(sc2); | |
| 3504 | |
| 3505 if (sc->func || dosemantic3) | |
| 3506 { | |
|
1615
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3507 #if WINDOWS_SEH |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3508 __try |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3509 { |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3510 #endif |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3511 static int nest; |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3512 if (++nest > 300) |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3513 { |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3514 global.gag = 0; // ensure error message gets printed |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3515 error("recursive expansion"); |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3516 fatal(); |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3517 } |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3518 semantic3(sc2); |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3519 --nest; |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3520 #if WINDOWS_SEH |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3521 } |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3522 __except (__ehfilter(GetExceptionInformation())) |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3523 { |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3524 global.gag = 0; // ensure error message gets printed |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3525 error("recursive expansion"); |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3526 fatal(); |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3527 } |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3528 #endif |
| 336 | 3529 } |
| 3530 | |
| 3531 Laftersemantic: | |
| 3532 sc2->pop(); | |
| 3533 | |
| 3534 scope->pop(); | |
| 3535 | |
| 3536 // Give additional context info if error occurred during instantiation | |
| 3537 if (global.errors != errorsave) | |
| 3538 { | |
| 3539 error("error instantiating"); | |
|
1615
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3540 if (tinst) |
|
1367
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
3541 { tinst->printInstantiationTrace(); |
|
1630
44b145be2ef5
Merge dmd 1.056.
Robert Clipsham <robert@octarineparrot.com>
parents:
1618
diff
changeset
|
3542 if (!global.gag) |
|
44b145be2ef5
Merge dmd 1.056.
Robert Clipsham <robert@octarineparrot.com>
parents:
1618
diff
changeset
|
3543 fatal(); |
|
1367
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
3544 } |
| 336 | 3545 errors = 1; |
| 3546 if (global.gag) | |
| 3547 tempdecl->instances.remove(tempdecl_instance_idx); | |
| 3548 } | |
| 3549 | |
| 3550 #if LOG | |
| 3551 printf("-TemplateInstance::semantic('%s', this=%p)\n", toChars(), this); | |
| 3552 #endif | |
| 3553 } | |
| 3554 | |
| 3555 | |
| 3556 void TemplateInstance::semanticTiargs(Scope *sc) | |
| 3557 { | |
| 3558 //printf("+TemplateInstance::semanticTiargs() %s\n", toChars()); | |
| 3559 if (semantictiargsdone) | |
| 3560 return; | |
| 3561 semantictiargsdone = 1; | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3562 semanticTiargs(loc, sc, tiargs, 0); |
| 336 | 3563 } |
| 3564 | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3565 /********************************** |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3566 * Input: |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3567 * 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
|
3568 */ |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3569 |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3570 void TemplateInstance::semanticTiargs(Loc loc, Scope *sc, Objects *tiargs, int flags) |
| 336 | 3571 { |
| 3572 // Run semantic on each argument, place results in tiargs[] | |
| 3573 //printf("+TemplateInstance::semanticTiargs() %s\n", toChars()); | |
| 3574 if (!tiargs) | |
| 3575 return; | |
| 3576 for (size_t j = 0; j < tiargs->dim; j++) | |
| 3577 { | |
| 3578 Object *o = (Object *)tiargs->data[j]; | |
| 3579 Type *ta = isType(o); | |
| 3580 Expression *ea = isExpression(o); | |
| 3581 Dsymbol *sa = isDsymbol(o); | |
| 3582 | |
| 3583 //printf("1: tiargs->data[%d] = %p, %p, %p, ea=%p, ta=%p\n", j, o, isDsymbol(o), isTuple(o), ea, ta); | |
| 3584 if (ta) | |
| 3585 { | |
| 3586 //printf("type %s\n", ta->toChars()); | |
| 3587 // It might really be an Expression or an Alias | |
| 3588 ta->resolve(loc, sc, &ea, &ta, &sa); | |
| 3589 if (ea) | |
| 3590 { | |
| 3591 ea = ea->semantic(sc); | |
| 3592 ea = ea->optimize(WANTvalue | WANTinterpret); | |
| 3593 tiargs->data[j] = ea; | |
| 3594 } | |
| 3595 else if (sa) | |
| 3596 { tiargs->data[j] = sa; | |
| 3597 TupleDeclaration *d = sa->toAlias()->isTupleDeclaration(); | |
| 3598 if (d) | |
| 3599 { | |
| 3600 size_t dim = d->objects->dim; | |
| 3601 tiargs->remove(j); | |
| 3602 tiargs->insert(j, d->objects); | |
| 3603 j--; | |
| 3604 } | |
| 3605 } | |
| 3606 else if (ta) | |
| 3607 { | |
| 1587 | 3608 Ltype: |
| 336 | 3609 if (ta->ty == Ttuple) |
| 3610 { // Expand tuple | |
| 3611 TypeTuple *tt = (TypeTuple *)ta; | |
| 3612 size_t dim = tt->arguments->dim; | |
| 3613 tiargs->remove(j); | |
| 3614 if (dim) | |
| 3615 { tiargs->reserve(dim); | |
| 3616 for (size_t i = 0; i < dim; i++) | |
|
1607
207a8a438dea
Merge DMD r253: refactor: Argument => Parameter
Leandro Lucarella <llucax@gmail.com>
parents:
1587
diff
changeset
|
3617 { Parameter *arg = (Parameter *)tt->arguments->data[i]; |
| 336 | 3618 tiargs->insert(j + i, arg->type); |
| 3619 } | |
| 3620 } | |
| 3621 j--; | |
| 3622 } | |
| 3623 else | |
| 3624 tiargs->data[j] = ta; | |
| 3625 } | |
| 3626 else | |
| 3627 { | |
| 3628 assert(global.errors); | |
| 3629 tiargs->data[j] = Type::terror; | |
| 3630 } | |
| 3631 } | |
| 3632 else if (ea) | |
| 3633 { | |
| 3634 if (!ea) | |
| 3635 { assert(global.errors); | |
| 3636 ea = new IntegerExp(0); | |
| 3637 } | |
| 3638 assert(ea); | |
| 3639 ea = ea->semantic(sc); | |
| 3640 ea = ea->optimize(WANTvalue | WANTinterpret); | |
| 3641 tiargs->data[j] = ea; | |
| 3642 if (ea->op == TOKtype) | |
| 1587 | 3643 { ta = ea->type; |
| 3644 goto Ltype; | |
| 3645 } | |
| 3646 if (ea->op == TOKtuple) | |
| 3647 { // Expand tuple | |
| 3648 TupleExp *te = (TupleExp *)ea; | |
| 3649 size_t dim = te->exps->dim; | |
| 3650 tiargs->remove(j); | |
| 3651 if (dim) | |
| 3652 { tiargs->reserve(dim); | |
| 3653 for (size_t i = 0; i < dim; i++) | |
| 3654 tiargs->insert(j + i, te->exps->data[i]); | |
| 3655 } | |
| 3656 j--; | |
| 3657 } | |
| 336 | 3658 } |
| 3659 else if (sa) | |
| 3660 { | |
| 3661 } | |
| 3662 else | |
| 3663 { | |
| 3664 assert(0); | |
| 3665 } | |
| 3666 //printf("1: tiargs->data[%d] = %p\n", j, tiargs->data[j]); | |
| 3667 } | |
| 3668 #if 0 | |
| 3669 printf("-TemplateInstance::semanticTiargs('%s', this=%p)\n", toChars(), this); | |
| 3670 for (size_t j = 0; j < tiargs->dim; j++) | |
| 3671 { | |
| 3672 Object *o = (Object *)tiargs->data[j]; | |
| 3673 Type *ta = isType(o); | |
| 3674 Expression *ea = isExpression(o); | |
| 3675 Dsymbol *sa = isDsymbol(o); | |
| 3676 Tuple *va = isTuple(o); | |
| 3677 | |
| 3678 printf("\ttiargs[%d] = ta %p, ea %p, sa %p, va %p\n", j, ta, ea, sa, va); | |
| 3679 } | |
| 3680 #endif | |
| 3681 } | |
| 3682 | |
| 3683 /********************************************** | |
| 3684 * Find template declaration corresponding to template instance. | |
| 3685 */ | |
| 3686 | |
| 3687 TemplateDeclaration *TemplateInstance::findTemplateDeclaration(Scope *sc) | |
| 3688 { | |
| 3689 //printf("TemplateInstance::findTemplateDeclaration() %s\n", toChars()); | |
| 3690 if (!tempdecl) | |
| 3691 { | |
| 3692 /* Given: | |
| 3693 * foo!( ... ) | |
| 3694 * figure out which TemplateDeclaration foo refers to. | |
| 3695 */ | |
| 3696 Dsymbol *s; | |
| 3697 Dsymbol *scopesym; | |
| 3698 Identifier *id; | |
| 3699 int i; | |
| 3700 | |
| 3701 id = name; | |
| 3702 s = sc->search(loc, id, &scopesym); | |
| 3703 if (!s) | |
|
1615
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
3704 { error("template '%s' is not defined", id->toChars()); |
| 336 | 3705 return NULL; |
| 3706 } | |
| 3707 #if LOG | |
| 3708 printf("It's an instance of '%s' kind '%s'\n", s->toChars(), s->kind()); | |
| 3709 if (s->parent) | |
| 3710 printf("s->parent = '%s'\n", s->parent->toChars()); | |
| 3711 #endif | |
| 3712 withsym = scopesym->isWithScopeSymbol(); | |
| 3713 | |
| 3714 /* We might have found an alias within a template when | |
| 3715 * we really want the template. | |
| 3716 */ | |
| 3717 TemplateInstance *ti; | |
| 3718 if (s->parent && | |
| 3719 (ti = s->parent->isTemplateInstance()) != NULL) | |
| 3720 { | |
| 3721 if ( | |
| 3722 (ti->name == id || | |
| 3723 ti->toAlias()->ident == id) | |
| 3724 && | |
| 3725 ti->tempdecl) | |
| 3726 { | |
| 3727 /* This is so that one can refer to the enclosing | |
| 3728 * template, even if it has the same name as a member | |
| 3729 * of the template, if it has a !(arguments) | |
| 3730 */ | |
| 3731 tempdecl = ti->tempdecl; | |
| 3732 if (tempdecl->overroot) // if not start of overloaded list of TemplateDeclaration's | |
| 3733 tempdecl = tempdecl->overroot; // then get the start | |
| 3734 s = tempdecl; | |
| 3735 } | |
| 3736 } | |
| 3737 | |
| 3738 s = s->toAlias(); | |
| 3739 | |
| 3740 /* It should be a TemplateDeclaration, not some other symbol | |
| 3741 */ | |
| 3742 tempdecl = s->isTemplateDeclaration(); | |
| 3743 if (!tempdecl) | |
| 3744 { | |
| 3745 if (!s->parent && global.errors) | |
| 3746 return NULL; | |
| 3747 if (!s->parent && s->getType()) | |
| 3748 { Dsymbol *s2 = s->getType()->toDsymbol(sc); | |
| 3749 if (!s2) | |
| 3750 { | |
| 3751 error("%s is not a template declaration, it is a %s", id->toChars(), s->kind()); | |
| 3752 return NULL; | |
| 3753 } | |
| 3754 s = s2; | |
| 3755 } | |
| 3756 #ifdef DEBUG | |
| 3757 //if (!s->parent) printf("s = %s %s\n", s->kind(), s->toChars()); | |
| 3758 #endif | |
| 3759 //assert(s->parent); | |
| 3760 TemplateInstance *ti = s->parent ? s->parent->isTemplateInstance() : NULL; | |
| 3761 if (ti && | |
| 3762 (ti->name == id || | |
| 3763 ti->toAlias()->ident == id) | |
| 3764 && | |
| 3765 ti->tempdecl) | |
| 3766 { | |
| 3767 /* This is so that one can refer to the enclosing | |
| 3768 * template, even if it has the same name as a member | |
| 3769 * of the template, if it has a !(arguments) | |
| 3770 */ | |
| 3771 tempdecl = ti->tempdecl; | |
| 3772 if (tempdecl->overroot) // if not start of overloaded list of TemplateDeclaration's | |
| 3773 tempdecl = tempdecl->overroot; // then get the start | |
| 3774 } | |
| 3775 else | |
| 3776 { | |
| 3777 error("%s is not a template declaration, it is a %s", id->toChars(), s->kind()); | |
| 3778 return NULL; | |
| 3779 } | |
| 3780 } | |
| 3781 } | |
| 3782 else | |
| 3783 assert(tempdecl->isTemplateDeclaration()); | |
| 3784 return tempdecl; | |
| 3785 } | |
| 3786 | |
| 3787 TemplateDeclaration *TemplateInstance::findBestMatch(Scope *sc) | |
| 3788 { | |
| 3789 /* Since there can be multiple TemplateDeclaration's with the same | |
| 3790 * name, look for the best match. | |
| 3791 */ | |
| 3792 TemplateDeclaration *td_ambig = NULL; | |
| 3793 TemplateDeclaration *td_best = NULL; | |
| 3794 MATCH m_best = MATCHnomatch; | |
| 3795 Objects dedtypes; | |
| 3796 | |
| 3797 #if LOG | |
| 3798 printf("TemplateInstance::findBestMatch()\n"); | |
| 3799 #endif | |
| 1587 | 3800 // First look for forward references |
| 3801 for (TemplateDeclaration *td = tempdecl; td; td = td->overnext) | |
| 3802 { | |
| 3803 if (!td->semanticRun) | |
| 3804 { | |
| 3805 if (td->scope) | |
| 3806 { // Try to fix forward reference | |
| 3807 td->semantic(td->scope); | |
| 3808 } | |
| 3809 if (!td->semanticRun) | |
| 3810 { | |
| 3811 error("%s forward references template declaration %s\n", toChars(), td->toChars()); | |
| 3812 return NULL; | |
| 3813 } | |
| 3814 } | |
| 3815 } | |
| 3816 | |
| 336 | 3817 for (TemplateDeclaration *td = tempdecl; td; td = td->overnext) |
| 3818 { | |
| 3819 MATCH m; | |
| 3820 | |
| 3821 //if (tiargs->dim) printf("2: tiargs->dim = %d, data[0] = %p\n", tiargs->dim, tiargs->data[0]); | |
| 3822 | |
| 3823 // If more arguments than parameters, | |
| 3824 // then this is no match. | |
| 3825 if (td->parameters->dim < tiargs->dim) | |
| 3826 { | |
| 3827 if (!td->isVariadic()) | |
| 3828 continue; | |
| 3829 } | |
| 3830 | |
| 3831 dedtypes.setDim(td->parameters->dim); | |
| 3832 dedtypes.zero(); | |
| 1587 | 3833 assert(td->semanticRun); |
| 336 | 3834 m = td->matchWithInstance(this, &dedtypes, 0); |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3835 //printf("matchWithInstance = %d\n", m); |
| 336 | 3836 if (!m) // no match at all |
| 3837 continue; | |
| 3838 | |
| 3839 if (m < m_best) | |
| 3840 goto Ltd_best; | |
| 3841 if (m > m_best) | |
| 3842 goto Ltd; | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
3843 |
| 336 | 3844 { |
| 3845 // 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
|
3846 MATCH c1 = td->leastAsSpecialized(td_best); |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3847 MATCH c2 = td_best->leastAsSpecialized(td); |
| 336 | 3848 //printf("c1 = %d, c2 = %d\n", c1, c2); |
| 3849 | |
| 3850 if (c1 > c2) | |
| 3851 goto Ltd; | |
| 3852 else if (c1 < c2) | |
| 3853 goto Ltd_best; | |
| 3854 else | |
| 3855 goto Lambig; | |
| 3856 } | |
| 3857 | |
| 3858 Lambig: // td_best and td are ambiguous | |
| 3859 td_ambig = td; | |
| 3860 continue; | |
| 3861 | |
| 3862 Ltd_best: // td_best is the best match so far | |
| 3863 td_ambig = NULL; | |
| 3864 continue; | |
| 3865 | |
| 3866 Ltd: // td is the new best match | |
| 3867 td_ambig = NULL; | |
| 3868 td_best = td; | |
| 3869 m_best = m; | |
| 3870 tdtypes.setDim(dedtypes.dim); | |
| 3871 memcpy(tdtypes.data, dedtypes.data, tdtypes.dim * sizeof(void *)); | |
| 3872 continue; | |
| 3873 } | |
| 3874 | |
| 3875 if (!td_best) | |
| 3876 { | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3877 if (tempdecl && !tempdecl->overnext) |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3878 // 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
|
3879 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
|
3880 else |
|
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3881 error("%s does not match any template declaration", toChars()); |
| 336 | 3882 return NULL; |
| 3883 } | |
| 3884 if (td_ambig) | |
| 3885 { | |
| 3886 error("%s matches more than one template declaration, %s and %s", | |
| 3887 toChars(), td_best->toChars(), td_ambig->toChars()); | |
| 3888 } | |
| 3889 | |
| 3890 /* The best match is td_best | |
| 3891 */ | |
| 3892 tempdecl = td_best; | |
| 3893 | |
| 3894 #if 0 | |
| 3895 /* Cast any value arguments to be same type as value parameter | |
| 3896 */ | |
| 3897 for (size_t i = 0; i < tiargs->dim; i++) | |
| 3898 { Object *o = (Object *)tiargs->data[i]; | |
| 3899 Expression *ea = isExpression(o); // value argument | |
| 3900 TemplateParameter *tp = (TemplateParameter *)tempdecl->parameters->data[i]; | |
| 3901 assert(tp); | |
| 3902 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
| 3903 if (tvp) | |
| 3904 { | |
| 3905 assert(ea); | |
| 3906 ea = ea->castTo(tvp->valType); | |
| 3907 ea = ea->optimize(WANTvalue | WANTinterpret); | |
| 3908 tiargs->data[i] = (Object *)ea; | |
| 3909 } | |
| 3910 } | |
| 3911 #endif | |
| 3912 | |
| 3913 #if LOG | |
| 3914 printf("\tIt's a match with template declaration '%s'\n", tempdecl->toChars()); | |
| 3915 #endif | |
| 3916 return tempdecl; | |
| 3917 } | |
| 3918 | |
| 3919 | |
| 3920 /***************************************** | |
| 3921 * Determines if a TemplateInstance will need a nested | |
| 3922 * generation of the TemplateDeclaration. | |
| 3923 */ | |
| 3924 | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3925 int TemplateInstance::hasNestedArgs(Objects *args) |
| 336 | 3926 { int nested = 0; |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3927 //printf("TemplateInstance::hasNestedArgs('%s')\n", tempdecl->ident->toChars()); |
| 336 | 3928 |
| 3929 /* A nested instance happens when an argument references a local | |
| 3930 * symbol that is on the stack. | |
| 3931 */ | |
| 3932 for (size_t i = 0; i < args->dim; i++) | |
| 3933 { Object *o = (Object *)args->data[i]; | |
| 3934 Expression *ea = isExpression(o); | |
| 3935 Dsymbol *sa = isDsymbol(o); | |
| 3936 Tuple *va = isTuple(o); | |
| 3937 if (ea) | |
| 3938 { | |
| 3939 if (ea->op == TOKvar) | |
| 3940 { | |
| 3941 sa = ((VarExp *)ea)->var; | |
| 3942 goto Lsa; | |
| 3943 } | |
| 3944 if (ea->op == TOKfunction) | |
| 3945 { | |
| 3946 sa = ((FuncExp *)ea)->fd; | |
| 3947 goto Lsa; | |
| 3948 } | |
| 3949 } | |
| 3950 else if (sa) | |
| 3951 { | |
| 3952 Lsa: | |
| 3953 Declaration *d = sa->isDeclaration(); | |
| 3954 if (d && !d->isDataseg() && | |
| 3955 #if DMDV2 | |
| 3956 !(d->storage_class & STCmanifest) && | |
| 3957 #endif | |
| 3958 (!d->isFuncDeclaration() || d->isFuncDeclaration()->isNested()) && | |
| 3959 !isTemplateMixin()) | |
| 3960 { | |
| 3961 // if module level template | |
| 3962 if (tempdecl->toParent()->isModule()) | |
| 3963 { Dsymbol *dparent = d->toParent(); | |
| 3964 if (!isnested) | |
| 3965 isnested = dparent; | |
| 3966 else if (isnested != dparent) | |
| 3967 { | |
| 3968 /* Select the more deeply nested of the two. | |
| 3969 * Error if one is not nested inside the other. | |
| 3970 */ | |
| 3971 for (Dsymbol *p = isnested; p; p = p->parent) | |
| 3972 { | |
| 3973 if (p == dparent) | |
| 3974 goto L1; // isnested is most nested | |
| 3975 } | |
|
876
27a379f288bf
Merged DMD 1.039
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
875
diff
changeset
|
3976 for (Dsymbol *p = dparent; p; p = p->parent) |
| 336 | 3977 { |
| 3978 if (p == isnested) | |
| 3979 { isnested = dparent; | |
| 3980 goto L1; // dparent is most nested | |
| 3981 } | |
| 3982 } | |
|
876
27a379f288bf
Merged DMD 1.039
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
875
diff
changeset
|
3983 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
|
3984 toChars(), isnested->toChars(), dparent->toChars()); |
| 336 | 3985 } |
| 3986 L1: | |
| 3987 //printf("\tnested inside %s\n", isnested->toChars()); | |
| 3988 nested |= 1; | |
| 3989 } | |
| 3990 else | |
|
1195
e961851fb8be
Merged DMD 1.042.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1174
diff
changeset
|
3991 error("cannot use local '%s' as parameter to non-global template %s", d->toChars(), tempdecl->toChars()); |
| 336 | 3992 } |
| 3993 } | |
| 3994 else if (va) | |
| 3995 { | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
3996 nested |= hasNestedArgs(&va->objects); |
| 336 | 3997 } |
| 3998 } | |
| 3999 return nested; | |
| 4000 } | |
| 4001 | |
| 4002 /**************************************** | |
| 4003 * This instance needs an identifier for name mangling purposes. | |
| 4004 * Create one by taking the template declaration name and adding | |
| 4005 * the type signature for it. | |
| 4006 */ | |
| 4007 | |
| 4008 Identifier *TemplateInstance::genIdent() | |
| 4009 { OutBuffer buf; | |
| 4010 | |
| 4011 //printf("TemplateInstance::genIdent('%s')\n", tempdecl->ident->toChars()); | |
|
1615
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4012 char *id = tempdecl->ident->toChars(); |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
4013 buf.printf("__T%zu%s", strlen(id), id); |
|
1615
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4014 Objects *args = tiargs; |
| 336 | 4015 for (int i = 0; i < args->dim; i++) |
| 4016 { Object *o = (Object *)args->data[i]; | |
| 4017 Type *ta = isType(o); | |
| 4018 Expression *ea = isExpression(o); | |
| 4019 Dsymbol *sa = isDsymbol(o); | |
| 4020 Tuple *va = isTuple(o); | |
|
1615
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4021 //printf("\to [%d] %p ta %p ea %p sa %p va %p\n", i, o, ta, ea, sa, va); |
| 336 | 4022 if (ta) |
| 4023 { | |
| 4024 buf.writeByte('T'); | |
| 4025 if (ta->deco) | |
| 4026 buf.writestring(ta->deco); | |
| 4027 else | |
| 4028 { | |
| 4029 #ifdef DEBUG | |
| 4030 printf("ta = %d, %s\n", ta->ty, ta->toChars()); | |
| 4031 #endif | |
| 4032 assert(global.errors); | |
| 4033 } | |
| 4034 } | |
| 4035 else if (ea) | |
| 4036 { sinteger_t v; | |
| 4037 real_t r; | |
| 4038 | |
| 1587 | 4039 ea = ea->optimize(WANTvalue | WANTinterpret); |
| 336 | 4040 if (ea->op == TOKvar) |
| 4041 { | |
| 4042 sa = ((VarExp *)ea)->var; | |
| 4043 ea = NULL; | |
| 4044 goto Lsa; | |
| 4045 } | |
| 4046 if (ea->op == TOKfunction) | |
| 4047 { | |
| 4048 sa = ((FuncExp *)ea)->fd; | |
| 4049 ea = NULL; | |
| 4050 goto Lsa; | |
| 4051 } | |
| 4052 buf.writeByte('V'); | |
| 4053 if (ea->op == TOKtuple) | |
| 4054 { ea->error("tuple is not a valid template value argument"); | |
| 4055 continue; | |
| 4056 } | |
| 4057 #if 1 | |
| 4058 /* Use deco that matches what it would be for a function parameter | |
| 4059 */ | |
| 4060 buf.writestring(ea->type->deco); | |
| 4061 #else | |
| 4062 // Use type of parameter, not type of argument | |
| 4063 TemplateParameter *tp = (TemplateParameter *)tempdecl->parameters->data[i]; | |
| 4064 assert(tp); | |
| 4065 TemplateValueParameter *tvp = tp->isTemplateValueParameter(); | |
| 4066 assert(tvp); | |
| 4067 buf.writestring(tvp->valType->deco); | |
| 4068 #endif | |
| 4069 ea->toMangleBuffer(&buf); | |
| 4070 } | |
| 4071 else if (sa) | |
| 4072 { | |
| 4073 Lsa: | |
| 4074 buf.writeByte('S'); | |
| 4075 Declaration *d = sa->isDeclaration(); | |
|
1367
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
4076 if (d && (!d->type || !d->type->deco)) |
| 336 | 4077 error("forward reference of %s", d->toChars()); |
| 4078 else | |
| 4079 { | |
| 4080 char *p = sa->mangle(); | |
|
1103
b30fe7e1dbb9
- Updated to DMD frontend 1.041.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1089
diff
changeset
|
4081 buf.printf("%zu%s", strlen(p), p); |
| 336 | 4082 } |
| 4083 } | |
| 4084 else if (va) | |
| 4085 { | |
| 4086 assert(i + 1 == args->dim); // must be last one | |
| 4087 args = &va->objects; | |
| 4088 i = -1; | |
| 4089 } | |
| 4090 else | |
| 4091 assert(0); | |
| 4092 } | |
| 4093 buf.writeByte('Z'); | |
| 4094 id = buf.toChars(); | |
| 4095 buf.data = NULL; | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
4096 //printf("\tgenIdent = %s\n", id); |
| 336 | 4097 return new Identifier(id, TOKidentifier); |
| 4098 } | |
| 4099 | |
| 4100 | |
| 4101 /**************************************************** | |
| 4102 * Declare parameters of template instance, initialize them with the | |
| 4103 * template instance arguments. | |
| 4104 */ | |
| 4105 | |
| 1587 | 4106 void TemplateInstance::declareParameters(Scope *sc) |
| 336 | 4107 { |
| 4108 //printf("TemplateInstance::declareParameters()\n"); | |
| 4109 for (int i = 0; i < tdtypes.dim; i++) | |
| 4110 { | |
| 4111 TemplateParameter *tp = (TemplateParameter *)tempdecl->parameters->data[i]; | |
| 4112 //Object *o = (Object *)tiargs->data[i]; | |
|
875
330f999ade44
Merged DMD 1.038
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
664
diff
changeset
|
4113 Object *o = (Object *)tdtypes.data[i]; // initializer for tp |
| 336 | 4114 |
| 4115 //printf("\ttdtypes[%d] = %p\n", i, o); | |
| 1587 | 4116 tempdecl->declareParameter(sc, tp, o); |
| 336 | 4117 } |
| 4118 } | |
| 4119 | |
| 4120 | |
|
1609
1d0220dd613a
Merge DMD r274: harmonization
Leandro Lucarella <llucax@gmail.com>
parents:
1607
diff
changeset
|
4121 /***************************************************** |
|
1d0220dd613a
Merge DMD r274: harmonization
Leandro Lucarella <llucax@gmail.com>
parents:
1607
diff
changeset
|
4122 * Determine if template instance is really a template function, |
|
1d0220dd613a
Merge DMD r274: harmonization
Leandro Lucarella <llucax@gmail.com>
parents:
1607
diff
changeset
|
4123 * and that template function needs to infer types from the function |
|
1d0220dd613a
Merge DMD r274: harmonization
Leandro Lucarella <llucax@gmail.com>
parents:
1607
diff
changeset
|
4124 * arguments. |
|
1d0220dd613a
Merge DMD r274: harmonization
Leandro Lucarella <llucax@gmail.com>
parents:
1607
diff
changeset
|
4125 */ |
|
1d0220dd613a
Merge DMD r274: harmonization
Leandro Lucarella <llucax@gmail.com>
parents:
1607
diff
changeset
|
4126 |
|
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Merge DMD r274: harmonization
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|
4127 int TemplateInstance::needsTypeInference(Scope *sc) |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4128 { |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4129 //printf("TemplateInstance::needsTypeInference() %s\n", toChars()); |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4130 if (!tempdecl) |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4131 tempdecl = findTemplateDeclaration(sc); |
|
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Merge DMD r274: harmonization
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|
4132 for (TemplateDeclaration *td = tempdecl; td; td = td->overnext) |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4133 { |
|
1d0220dd613a
Merge DMD r274: harmonization
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parents:
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changeset
|
4134 /* If any of the overloaded template declarations need inference, |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4135 * then return TRUE |
|
1d0220dd613a
Merge DMD r274: harmonization
Leandro Lucarella <llucax@gmail.com>
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|
4136 */ |
|
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Merge DMD r274: harmonization
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|
4137 FuncDeclaration *fd; |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4138 if (!td->onemember || |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4139 (fd = td->onemember->toAlias()->isFuncDeclaration()) == NULL || |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4140 fd->type->ty != Tfunction) |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4141 { |
|
1d0220dd613a
Merge DMD r274: harmonization
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changeset
|
4142 /* Not a template function, therefore type inference is not possible. |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4143 */ |
|
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Merge DMD r274: harmonization
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|
4144 //printf("false\n"); |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4145 return FALSE; |
|
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Merge DMD r274: harmonization
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|
4146 } |
|
1d0220dd613a
Merge DMD r274: harmonization
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changeset
|
4147 |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4148 /* Determine if the instance arguments, tiargs, are all that is necessary |
|
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Merge DMD r274: harmonization
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|
4149 * to instantiate the template. |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4150 */ |
|
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Merge DMD r274: harmonization
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|
4151 TemplateTupleParameter *tp = td->isVariadic(); |
|
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Merge DMD r274: harmonization
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4152 //printf("tp = %p, td->parameters->dim = %d, tiargs->dim = %d\n", tp, td->parameters->dim, tiargs->dim); |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4153 TypeFunction *fdtype = (TypeFunction *)fd->type; |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4154 if (Parameter::dim(fdtype->parameters) && |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4155 (tp || tiargs->dim < td->parameters->dim)) |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4156 return TRUE; |
|
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Merge DMD r274: harmonization
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changeset
|
4157 } |
|
1d0220dd613a
Merge DMD r274: harmonization
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changeset
|
4158 //printf("false\n"); |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4159 return FALSE; |
|
1d0220dd613a
Merge DMD r274: harmonization
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changeset
|
4160 } |
|
1d0220dd613a
Merge DMD r274: harmonization
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|
4161 |
| 336 | 4162 void TemplateInstance::semantic2(Scope *sc) |
| 4163 { int i; | |
| 4164 | |
| 1587 | 4165 if (semanticRun >= 2) |
| 336 | 4166 return; |
| 1587 | 4167 semanticRun = 2; |
| 336 | 4168 #if LOG |
| 4169 printf("+TemplateInstance::semantic2('%s')\n", toChars()); | |
| 4170 #endif | |
| 4171 if (!errors && members) | |
| 4172 { | |
| 4173 sc = tempdecl->scope; | |
| 4174 assert(sc); | |
| 4175 sc = sc->push(argsym); | |
| 4176 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
|
4177 sc->tinst = this; |
| 336 | 4178 for (i = 0; i < members->dim; i++) |
| 4179 { | |
| 4180 Dsymbol *s = (Dsymbol *)members->data[i]; | |
| 4181 #if LOG | |
| 4182 printf("\tmember '%s', kind = '%s'\n", s->toChars(), s->kind()); | |
| 4183 #endif | |
| 4184 s->semantic2(sc); | |
| 4185 } | |
| 4186 sc = sc->pop(); | |
| 4187 sc->pop(); | |
| 4188 } | |
| 4189 #if LOG | |
| 4190 printf("-TemplateInstance::semantic2('%s')\n", toChars()); | |
| 4191 #endif | |
| 4192 } | |
| 4193 | |
| 4194 void TemplateInstance::semantic3(Scope *sc) | |
| 4195 { | |
| 4196 #if LOG | |
| 1587 | 4197 printf("TemplateInstance::semantic3('%s'), semanticRun = %d\n", toChars(), semanticRun); |
| 336 | 4198 #endif |
| 4199 //if (toChars()[0] == 'D') *(char*)0=0; | |
| 1587 | 4200 if (semanticRun >= 3) |
| 336 | 4201 return; |
| 1587 | 4202 semanticRun = 3; |
| 336 | 4203 if (!errors && members) |
| 4204 { | |
| 4205 sc = tempdecl->scope; | |
| 4206 sc = sc->push(argsym); | |
| 4207 sc = sc->push(this); | |
|
561
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
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diff
changeset
|
4208 sc->tinst = this; |
| 336 | 4209 for (int i = 0; i < members->dim; i++) |
| 4210 { | |
| 4211 Dsymbol *s = (Dsymbol *)members->data[i]; | |
| 4212 s->semantic3(sc); | |
| 4213 } | |
| 4214 sc = sc->pop(); | |
| 4215 sc->pop(); | |
| 4216 } | |
| 4217 } | |
| 4218 | |
|
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
4219 #if IN_DMD |
|
dbe4af57b240
Changed use of toObjFile to a new codegen method.
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1146
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|
4220 |
|
1615
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Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4221 /************************************** |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4222 * Given an error instantiating the TemplateInstance, |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4223 * give the nested TemplateInstance instantiations that got |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4224 * us here. Those are a list threaded into the nested scopes. |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4225 */ |
|
1367
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Merged DMD 1.045 !!!
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changeset
|
4226 void TemplateInstance::printInstantiationTrace() |
|
8026319762be
Merged DMD 1.045 !!!
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|
4227 { |
|
8026319762be
Merged DMD 1.045 !!!
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|
4228 if (global.gag) |
|
8026319762be
Merged DMD 1.045 !!!
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|
4229 return; |
|
1615
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4230 |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4231 const int max_shown = 6; |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4232 const char format[] = "%s: instantiated from here: %s\n"; |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4233 |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4234 // determine instantiation depth and number of recursive instantiations |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4235 int n_instantiations = 1; |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4236 int n_totalrecursions = 0; |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4237 for (TemplateInstance *cur = this; cur; cur = cur->tinst) |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4238 { |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4239 ++n_instantiations; |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
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changeset
|
4240 // If two instantiations use the same declaration, they are recursive. |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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diff
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|
4241 // (this works even if they are instantiated from different places in the |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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diff
changeset
|
4242 // same template). |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
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diff
changeset
|
4243 // In principle, we could also check for multiple-template recursion, but it's |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
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diff
changeset
|
4244 // probably not worthwhile. |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4245 if (cur->tinst && cur->tempdecl && cur->tinst->tempdecl |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4246 && cur->tempdecl->loc.equals(cur->tinst->tempdecl->loc)) |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
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|
4247 ++n_totalrecursions; |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
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|
4248 } |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4249 |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
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changeset
|
4250 // show full trace only if it's short or verbose is on |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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diff
changeset
|
4251 if (n_instantiations <= max_shown || global.params.verbose) |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4252 { |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4253 for (TemplateInstance *cur = this; cur; cur = cur->tinst) |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4254 { |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4255 fprintf(stdmsg, format, cur->loc.toChars(), cur->toChars()); |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4256 } |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4257 } |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4258 else if (n_instantiations - n_totalrecursions <= max_shown) |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4259 { |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4260 // By collapsing recursive instantiations into a single line, |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4261 // we can stay under the limit. |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4262 int recursionDepth=0; |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4263 for (TemplateInstance *cur = this; cur; cur = cur->tinst) |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4264 { |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4265 if (cur->tinst && cur->tempdecl && cur->tinst->tempdecl |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4266 && cur->tempdecl->loc.equals(cur->tinst->tempdecl->loc)) |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
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changeset
|
4267 { |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4268 ++recursionDepth; |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4269 } |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4270 else |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4271 { |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4272 if (recursionDepth) |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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diff
changeset
|
4273 fprintf(stdmsg, "%s: %d recursive instantiations from here: %s\n", cur->loc.toChars(), recursionDepth+2, cur->toChars()); |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4274 else |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4275 fprintf(stdmsg,format, cur->loc.toChars(), cur->toChars()); |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4276 recursionDepth = 0; |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4277 } |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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changeset
|
4278 } |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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|
4279 } |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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parents:
1610
diff
changeset
|
4280 else |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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parents:
1610
diff
changeset
|
4281 { |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4282 // Even after collapsing the recursions, the depth is too deep. |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4283 // Just display the first few and last few instantiations. |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4284 size_t i = 0; |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4285 for (TemplateInstance *cur = this; cur; cur = cur->tinst) |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
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parents:
1610
diff
changeset
|
4286 { |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4287 if (i == max_shown / 2) |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4288 fprintf(stdmsg," ... (%d instantiations, -v to show) ...\n", n_instantiations - max_shown); |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4289 |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4290 if (i < max_shown / 2 || |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4291 i >= n_instantiations - max_shown + max_shown / 2) |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4292 fprintf(stdmsg, format, cur->loc.toChars(), cur->toChars()); |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4293 ++i; |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4294 } |
|
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4295 } |
|
1367
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
4296 } |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
4297 |
| 336 | 4298 void TemplateInstance::toObjFile(int multiobj) |
| 4299 { | |
| 4300 #if LOG | |
| 4301 printf("TemplateInstance::toObjFile('%s', this = %p)\n", toChars(), this); | |
| 4302 #endif | |
| 4303 if (!errors && members) | |
| 4304 { | |
| 4305 if (multiobj) | |
| 4306 // Append to list of object files to be written later | |
| 4307 //obj_append(this); | |
| 4308 assert(0 && "multiobj"); | |
| 4309 else | |
| 4310 { | |
| 4311 for (int i = 0; i < members->dim; i++) | |
| 4312 { | |
| 4313 Dsymbol *s = (Dsymbol *)members->data[i]; | |
| 4314 s->toObjFile(multiobj); | |
| 4315 } | |
| 4316 } | |
| 4317 } | |
| 4318 } | |
| 4319 | |
|
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
4320 #endif |
|
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
4321 |
| 336 | 4322 void TemplateInstance::inlineScan() |
| 4323 { | |
| 4324 #if LOG | |
| 4325 printf("TemplateInstance::inlineScan('%s')\n", toChars()); | |
| 4326 #endif | |
| 4327 if (!errors && members) | |
| 4328 { | |
| 4329 for (int i = 0; i < members->dim; i++) | |
| 4330 { | |
| 4331 Dsymbol *s = (Dsymbol *)members->data[i]; | |
| 4332 s->inlineScan(); | |
| 4333 } | |
| 4334 } | |
| 4335 } | |
| 4336 | |
| 4337 void TemplateInstance::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4338 { | |
| 4339 int i; | |
| 4340 | |
| 4341 Identifier *id = name; | |
| 4342 buf->writestring(id->toChars()); | |
| 4343 buf->writestring("!("); | |
| 4344 if (nest) | |
| 4345 buf->writestring("..."); | |
| 4346 else | |
| 4347 { | |
| 4348 nest++; | |
| 4349 Objects *args = tiargs; | |
| 4350 for (i = 0; i < args->dim; i++) | |
| 4351 { | |
| 4352 if (i) | |
| 4353 buf->writeByte(','); | |
| 4354 Object *oarg = (Object *)args->data[i]; | |
| 4355 ObjectToCBuffer(buf, hgs, oarg); | |
| 4356 } | |
| 4357 nest--; | |
| 4358 } | |
| 4359 buf->writeByte(')'); | |
| 4360 } | |
| 4361 | |
| 4362 | |
| 4363 Dsymbol *TemplateInstance::toAlias() | |
| 4364 { | |
| 4365 #if LOG | |
| 4366 printf("TemplateInstance::toAlias()\n"); | |
| 4367 #endif | |
| 4368 if (!inst) | |
| 4369 { error("cannot resolve forward reference"); | |
| 1587 | 4370 errors = 1; |
| 336 | 4371 return this; |
| 4372 } | |
| 4373 | |
| 4374 if (inst != this) | |
| 4375 return inst->toAlias(); | |
| 4376 | |
| 4377 if (aliasdecl) | |
|
1615
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4378 { |
| 336 | 4379 return aliasdecl->toAlias(); |
|
1615
3da302cc4966
Merge DMD r294: bugzilla 2816 Sudden-death static assert is not...
Leandro Lucarella <llucax@gmail.com>
parents:
1610
diff
changeset
|
4380 } |
| 336 | 4381 |
| 4382 return inst; | |
| 4383 } | |
| 4384 | |
| 4385 AliasDeclaration *TemplateInstance::isAliasDeclaration() | |
| 4386 { | |
| 4387 return aliasdecl; | |
| 4388 } | |
| 4389 | |
| 4390 const char *TemplateInstance::kind() | |
| 4391 { | |
| 4392 return "template instance"; | |
| 4393 } | |
| 4394 | |
| 4395 int TemplateInstance::oneMember(Dsymbol **ps) | |
| 4396 { | |
| 4397 *ps = NULL; | |
| 4398 return TRUE; | |
| 4399 } | |
| 4400 | |
| 4401 char *TemplateInstance::toChars() | |
| 4402 { | |
| 4403 OutBuffer buf; | |
| 4404 HdrGenState hgs; | |
| 4405 char *s; | |
| 4406 | |
| 4407 toCBuffer(&buf, &hgs); | |
| 4408 s = buf.toChars(); | |
| 4409 buf.data = NULL; | |
| 4410 return s; | |
| 4411 } | |
| 4412 | |
|
1367
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
4413 #if IN_LLVM |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
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|
4414 |
|
561
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4415 void TemplateInstance::printInstantiationTrace() |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4416 { |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4417 if(global.gag) |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4418 return; |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4419 |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4420 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
|
4421 |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4422 // determine instantiation depth |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
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diff
changeset
|
4423 int n_instantiations = 1; |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
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diff
changeset
|
4424 TemplateInstance* cur = this; |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4425 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
|
4426 ++n_instantiations; |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4427 |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4428 // 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
|
4429 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
|
4430 { |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
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527
diff
changeset
|
4431 cur = this; |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4432 while(cur) |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
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527
diff
changeset
|
4433 { |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4434 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
|
4435 cur = cur->tinst; |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4436 } |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4437 } |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4438 else |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4439 { |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4440 cur = this; |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
Christian Kamm <kamm incasoftware de>
parents:
527
diff
changeset
|
4441 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
|
4442 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
|
4443 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
|
4444 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
|
4445 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
|
4446 {} |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
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parents:
527
diff
changeset
|
4447 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
|
4448 fprintf(stdmsg," instantiatied in %s: %s\n", cur->loc.toChars(), cur->toChars()); |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
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diff
changeset
|
4449 } |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
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diff
changeset
|
4450 } |
|
d4e95db0e62b
Introducing template instantiation traces for static asserts and errors within templates.
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diff
changeset
|
4451 |
|
1367
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Merged DMD 1.045 !!!
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diff
changeset
|
4452 #endif |
|
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|
4453 |
| 336 | 4454 /* ======================== TemplateMixin ================================ */ |
| 4455 | |
| 4456 TemplateMixin::TemplateMixin(Loc loc, Identifier *ident, Type *tqual, | |
| 4457 Array *idents, Objects *tiargs) | |
| 4458 : TemplateInstance(loc, (Identifier *)idents->data[idents->dim - 1]) | |
| 4459 { | |
| 4460 //printf("TemplateMixin(ident = '%s')\n", ident ? ident->toChars() : ""); | |
| 4461 this->ident = ident; | |
| 4462 this->tqual = tqual; | |
| 4463 this->idents = idents; | |
| 4464 this->tiargs = tiargs ? tiargs : new Objects(); | |
| 4465 } | |
| 4466 | |
| 4467 Dsymbol *TemplateMixin::syntaxCopy(Dsymbol *s) | |
| 4468 { TemplateMixin *tm; | |
| 4469 | |
| 4470 Array *ids = new Array(); | |
| 4471 ids->setDim(idents->dim); | |
| 4472 for (int i = 0; i < idents->dim; i++) | |
| 4473 { // Matches TypeQualified::syntaxCopyHelper() | |
| 4474 Identifier *id = (Identifier *)idents->data[i]; | |
| 4475 if (id->dyncast() == DYNCAST_DSYMBOL) | |
| 4476 { | |
| 4477 TemplateInstance *ti = (TemplateInstance *)id; | |
| 4478 | |
| 4479 ti = (TemplateInstance *)ti->syntaxCopy(NULL); | |
| 4480 id = (Identifier *)ti; | |
| 4481 } | |
| 4482 ids->data[i] = id; | |
| 4483 } | |
| 4484 | |
| 4485 tm = new TemplateMixin(loc, ident, | |
| 4486 (Type *)(tqual ? tqual->syntaxCopy() : NULL), | |
| 4487 ids, tiargs); | |
| 4488 TemplateInstance::syntaxCopy(tm); | |
| 4489 return tm; | |
| 4490 } | |
| 4491 | |
| 4492 void TemplateMixin::semantic(Scope *sc) | |
| 4493 { | |
| 4494 #if LOG | |
| 4495 printf("+TemplateMixin::semantic('%s', this=%p)\n", toChars(), this); | |
| 4496 fflush(stdout); | |
| 4497 #endif | |
| 1587 | 4498 if (semanticRun) |
| 4499 { | |
| 336 | 4500 // This for when a class/struct contains mixin members, and |
| 4501 // is done over because of forward references | |
| 1587 | 4502 if (parent && toParent()->isAggregateDeclaration()) |
| 4503 semanticRun = 1; // do over | |
| 4504 else | |
| 4505 { | |
| 336 | 4506 #if LOG |
| 1587 | 4507 printf("\tsemantic done\n"); |
| 336 | 4508 #endif |
| 1587 | 4509 return; |
| 4510 } | |
| 336 | 4511 } |
| 1587 | 4512 if (!semanticRun) |
| 4513 semanticRun = 1; | |
| 336 | 4514 #if LOG |
| 4515 printf("\tdo semantic\n"); | |
| 4516 #endif | |
| 4517 | |
| 4518 #if !IN_LLVM | |
| 4519 // dont know what this is | |
| 4520 util_progress(); | |
| 4521 #endif | |
| 4522 | |
| 4523 Scope *scx = NULL; | |
| 4524 if (scope) | |
| 4525 { sc = scope; | |
| 4526 scx = scope; // save so we don't make redundant copies | |
| 4527 scope = NULL; | |
| 4528 } | |
| 4529 | |
| 4530 // Follow qualifications to find the TemplateDeclaration | |
| 4531 if (!tempdecl) | |
| 4532 { Dsymbol *s; | |
| 4533 int i; | |
| 4534 Identifier *id; | |
| 4535 | |
| 4536 if (tqual) | |
| 4537 { s = tqual->toDsymbol(sc); | |
| 4538 i = 0; | |
| 4539 } | |
| 4540 else | |
| 4541 { | |
| 4542 i = 1; | |
| 4543 id = (Identifier *)idents->data[0]; | |
| 4544 switch (id->dyncast()) | |
| 4545 { | |
| 4546 case DYNCAST_IDENTIFIER: | |
| 4547 s = sc->search(loc, id, NULL); | |
| 4548 break; | |
| 4549 | |
| 4550 case DYNCAST_DSYMBOL: | |
| 4551 { | |
| 4552 TemplateInstance *ti = (TemplateInstance *)id; | |
| 4553 ti->semantic(sc); | |
| 4554 s = ti; | |
| 4555 break; | |
| 4556 } | |
| 4557 default: | |
| 4558 assert(0); | |
| 4559 } | |
| 4560 } | |
| 4561 | |
| 4562 for (; i < idents->dim; i++) | |
| 4563 { | |
| 4564 if (!s) | |
| 4565 break; | |
| 4566 id = (Identifier *)idents->data[i]; | |
| 4567 s = s->searchX(loc, sc, id); | |
| 4568 } | |
| 4569 if (!s) | |
| 4570 { | |
| 4571 error("is not defined"); | |
| 4572 inst = this; | |
| 4573 return; | |
| 4574 } | |
| 4575 tempdecl = s->toAlias()->isTemplateDeclaration(); | |
| 4576 if (!tempdecl) | |
| 4577 { | |
| 4578 error("%s isn't a template", s->toChars()); | |
| 4579 inst = this; | |
| 4580 return; | |
| 4581 } | |
| 4582 } | |
| 4583 | |
| 4584 // Look for forward reference | |
| 4585 assert(tempdecl); | |
| 4586 for (TemplateDeclaration *td = tempdecl; td; td = td->overnext) | |
| 4587 { | |
| 1587 | 4588 if (!td->semanticRun) |
| 336 | 4589 { |
| 4590 /* Cannot handle forward references if mixin is a struct member, | |
| 4591 * because addField must happen during struct's semantic, not | |
| 4592 * during the mixin semantic. | |
| 4593 * runDeferred will re-run mixin's semantic outside of the struct's | |
| 4594 * semantic. | |
| 4595 */ | |
| 1587 | 4596 semanticRun = 0; |
| 336 | 4597 AggregateDeclaration *ad = toParent()->isAggregateDeclaration(); |
| 4598 if (ad) | |
| 4599 ad->sizeok = 2; | |
| 4600 else | |
| 4601 { | |
| 4602 // Forward reference | |
| 4603 //printf("forward reference - deferring\n"); | |
| 4604 scope = scx ? scx : new Scope(*sc); | |
| 4605 scope->setNoFree(); | |
| 4606 scope->module->addDeferredSemantic(this); | |
| 4607 } | |
| 4608 return; | |
| 4609 } | |
| 4610 } | |
| 4611 | |
| 4612 // Run semantic on each argument, place results in tiargs[] | |
| 4613 semanticTiargs(sc); | |
| 1587 | 4614 if (errors) |
| 4615 return; | |
| 336 | 4616 |
| 4617 tempdecl = findBestMatch(sc); | |
| 4618 if (!tempdecl) | |
| 4619 { inst = this; | |
| 4620 return; // error recovery | |
| 4621 } | |
| 4622 | |
| 4623 if (!ident) | |
| 4624 ident = genIdent(); | |
| 4625 | |
| 4626 inst = this; | |
| 4627 parent = sc->parent; | |
| 4628 | |
| 4629 /* Detect recursive mixin instantiations. | |
| 4630 */ | |
| 4631 for (Dsymbol *s = parent; s; s = s->parent) | |
| 4632 { | |
| 4633 //printf("\ts = '%s'\n", s->toChars()); | |
| 4634 TemplateMixin *tm = s->isTemplateMixin(); | |
| 4635 if (!tm || tempdecl != tm->tempdecl) | |
| 4636 continue; | |
| 4637 | |
| 4638 /* Different argument list lengths happen with variadic args | |
| 4639 */ | |
| 4640 if (tiargs->dim != tm->tiargs->dim) | |
| 4641 continue; | |
| 4642 | |
| 4643 for (int i = 0; i < tiargs->dim; i++) | |
| 4644 { Object *o = (Object *)tiargs->data[i]; | |
| 4645 Type *ta = isType(o); | |
| 4646 Expression *ea = isExpression(o); | |
| 4647 Dsymbol *sa = isDsymbol(o); | |
| 4648 Object *tmo = (Object *)tm->tiargs->data[i]; | |
| 4649 if (ta) | |
| 4650 { | |
| 4651 Type *tmta = isType(tmo); | |
| 4652 if (!tmta) | |
| 4653 goto Lcontinue; | |
| 4654 if (!ta->equals(tmta)) | |
| 4655 goto Lcontinue; | |
| 4656 } | |
| 4657 else if (ea) | |
| 4658 { Expression *tme = isExpression(tmo); | |
| 4659 if (!tme || !ea->equals(tme)) | |
| 4660 goto Lcontinue; | |
| 4661 } | |
| 4662 else if (sa) | |
| 4663 { | |
| 4664 Dsymbol *tmsa = isDsymbol(tmo); | |
| 4665 if (sa != tmsa) | |
| 4666 goto Lcontinue; | |
| 4667 } | |
| 4668 else | |
| 4669 assert(0); | |
| 4670 } | |
| 4671 error("recursive mixin instantiation"); | |
| 4672 return; | |
| 4673 | |
| 4674 Lcontinue: | |
| 4675 continue; | |
| 4676 } | |
| 4677 | |
| 4678 // Copy the syntax trees from the TemplateDeclaration | |
| 4679 members = Dsymbol::arraySyntaxCopy(tempdecl->members); | |
| 4680 if (!members) | |
| 4681 return; | |
| 4682 | |
| 4683 symtab = new DsymbolTable(); | |
| 4684 | |
| 4685 for (Scope *sce = sc; 1; sce = sce->enclosing) | |
| 4686 { | |
| 4687 ScopeDsymbol *sds = (ScopeDsymbol *)sce->scopesym; | |
| 4688 if (sds) | |
| 4689 { | |
| 4690 sds->importScope(this, PROTpublic); | |
| 4691 break; | |
| 4692 } | |
| 4693 } | |
| 4694 | |
| 4695 #if LOG | |
| 4696 printf("\tcreate scope for template parameters '%s'\n", toChars()); | |
| 4697 #endif | |
| 4698 Scope *scy = sc; | |
| 4699 scy = sc->push(this); | |
| 4700 scy->parent = this; | |
| 4701 | |
| 4702 argsym = new ScopeDsymbol(); | |
| 4703 argsym->parent = scy->parent; | |
| 1587 | 4704 Scope *argscope = scy->push(argsym); |
| 336 | 4705 |
| 4706 unsigned errorsave = global.errors; | |
| 4707 | |
| 4708 // Declare each template parameter as an alias for the argument type | |
| 1587 | 4709 declareParameters(argscope); |
| 336 | 4710 |
| 4711 // Add members to enclosing scope, as well as this scope | |
| 4712 for (unsigned i = 0; i < members->dim; i++) | |
| 4713 { Dsymbol *s; | |
| 4714 | |
| 4715 s = (Dsymbol *)members->data[i]; | |
| 1587 | 4716 s->addMember(argscope, this, i); |
| 336 | 4717 //sc->insert(s); |
| 4718 //printf("sc->parent = %p, sc->scopesym = %p\n", sc->parent, sc->scopesym); | |
| 4719 //printf("s->parent = %s\n", s->parent->toChars()); | |
| 4720 } | |
| 4721 | |
| 4722 // Do semantic() analysis on template instance members | |
| 4723 #if LOG | |
| 4724 printf("\tdo semantic() on template instance members '%s'\n", toChars()); | |
| 4725 #endif | |
| 4726 Scope *sc2; | |
| 1587 | 4727 sc2 = argscope->push(this); |
| 336 | 4728 sc2->offset = sc->offset; |
|
1367
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
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diff
changeset
|
4729 |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
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diff
changeset
|
4730 static int nest; |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
4731 //printf("%d\n", nest); |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
4732 if (++nest > 500) |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
4733 { |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
4734 global.gag = 0; // ensure error message gets printed |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
4735 error("recursive expansion"); |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
4736 fatal(); |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
4737 } |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
4738 |
| 336 | 4739 for (int i = 0; i < members->dim; i++) |
| 4740 { | |
| 4741 Dsymbol *s = (Dsymbol *)members->data[i]; | |
| 4742 s->semantic(sc2); | |
| 4743 } | |
|
1367
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
4744 |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
4745 nest--; |
|
8026319762be
Merged DMD 1.045 !!!
Tomas Lindquist Olsen <tomas.l.olsen gmail com>
parents:
1195
diff
changeset
|
4746 |
| 336 | 4747 sc->offset = sc2->offset; |
| 4748 | |
| 4749 /* The problem is when to parse the initializer for a variable. | |
| 4750 * Perhaps VarDeclaration::semantic() should do it like it does | |
| 4751 * for initializers inside a function. | |
| 4752 */ | |
| 4753 // if (sc->parent->isFuncDeclaration()) | |
| 4754 | |
| 4755 semantic2(sc2); | |
| 4756 | |
| 4757 if (sc->func) | |
| 4758 { | |
| 4759 semantic3(sc2); | |
| 4760 } | |
| 4761 | |
| 4762 // Give additional context info if error occurred during instantiation | |
| 4763 if (global.errors != errorsave) | |
| 4764 { | |
| 4765 error("error instantiating"); | |
| 4766 } | |
| 4767 | |
| 4768 sc2->pop(); | |
| 4769 | |
| 1587 | 4770 argscope->pop(); |
| 336 | 4771 |
| 4772 // if (!isAnonymous()) | |
| 4773 { | |
| 4774 scy->pop(); | |
| 4775 } | |
| 4776 #if LOG | |
| 4777 printf("-TemplateMixin::semantic('%s', this=%p)\n", toChars(), this); | |
| 4778 #endif | |
| 4779 } | |
| 4780 | |
| 4781 void TemplateMixin::semantic2(Scope *sc) | |
| 4782 { int i; | |
| 4783 | |
| 1587 | 4784 if (semanticRun >= 2) |
| 336 | 4785 return; |
| 1587 | 4786 semanticRun = 2; |
| 336 | 4787 #if LOG |
| 4788 printf("+TemplateMixin::semantic2('%s')\n", toChars()); | |
| 4789 #endif | |
| 4790 if (members) | |
| 4791 { | |
| 4792 assert(sc); | |
| 4793 sc = sc->push(argsym); | |
| 4794 sc = sc->push(this); | |
| 4795 for (i = 0; i < members->dim; i++) | |
| 4796 { | |
| 4797 Dsymbol *s = (Dsymbol *)members->data[i]; | |
| 4798 #if LOG | |
| 4799 printf("\tmember '%s', kind = '%s'\n", s->toChars(), s->kind()); | |
| 4800 #endif | |
| 4801 s->semantic2(sc); | |
| 4802 } | |
| 4803 sc = sc->pop(); | |
| 4804 sc->pop(); | |
| 4805 } | |
| 4806 #if LOG | |
| 4807 printf("-TemplateMixin::semantic2('%s')\n", toChars()); | |
| 4808 #endif | |
| 4809 } | |
| 4810 | |
| 4811 void TemplateMixin::semantic3(Scope *sc) | |
| 4812 { int i; | |
| 4813 | |
| 1587 | 4814 if (semanticRun >= 3) |
| 336 | 4815 return; |
| 1587 | 4816 semanticRun = 3; |
| 336 | 4817 #if LOG |
| 4818 printf("TemplateMixin::semantic3('%s')\n", toChars()); | |
| 4819 #endif | |
| 4820 if (members) | |
| 4821 { | |
| 4822 sc = sc->push(argsym); | |
| 4823 sc = sc->push(this); | |
| 4824 for (i = 0; i < members->dim; i++) | |
| 4825 { | |
| 4826 Dsymbol *s = (Dsymbol *)members->data[i]; | |
| 4827 s->semantic3(sc); | |
| 4828 } | |
| 4829 sc = sc->pop(); | |
| 4830 sc->pop(); | |
| 4831 } | |
| 4832 } | |
| 4833 | |
| 4834 void TemplateMixin::inlineScan() | |
| 4835 { | |
| 4836 TemplateInstance::inlineScan(); | |
| 4837 } | |
| 4838 | |
| 4839 const char *TemplateMixin::kind() | |
| 4840 { | |
| 4841 return "mixin"; | |
| 4842 } | |
| 4843 | |
| 4844 int TemplateMixin::oneMember(Dsymbol **ps) | |
| 4845 { | |
| 4846 return Dsymbol::oneMember(ps); | |
| 4847 } | |
| 4848 | |
| 4849 int TemplateMixin::hasPointers() | |
| 4850 { | |
| 4851 //printf("TemplateMixin::hasPointers() %s\n", toChars()); | |
| 4852 for (size_t i = 0; i < members->dim; i++) | |
| 4853 { | |
| 4854 Dsymbol *s = (Dsymbol *)members->data[i]; | |
| 4855 //printf(" s = %s %s\n", s->kind(), s->toChars()); | |
| 4856 if (s->hasPointers()) | |
| 4857 { | |
| 4858 return 1; | |
| 4859 } | |
| 4860 } | |
| 4861 return 0; | |
| 4862 } | |
| 4863 | |
| 4864 char *TemplateMixin::toChars() | |
| 4865 { | |
| 4866 OutBuffer buf; | |
| 4867 HdrGenState hgs; | |
| 4868 char *s; | |
| 4869 | |
| 4870 TemplateInstance::toCBuffer(&buf, &hgs); | |
| 4871 s = buf.toChars(); | |
| 4872 buf.data = NULL; | |
| 4873 return s; | |
| 4874 } | |
| 4875 | |
| 4876 void TemplateMixin::toCBuffer(OutBuffer *buf, HdrGenState *hgs) | |
| 4877 { | |
| 4878 buf->writestring("mixin "); | |
| 4879 | |
| 4880 for (int i = 0; i < idents->dim; i++) | |
| 4881 { Identifier *id = (Identifier *)idents->data[i]; | |
| 4882 | |
| 4883 if (i) | |
| 4884 buf->writeByte('.'); | |
| 4885 buf->writestring(id->toChars()); | |
| 4886 } | |
| 4887 buf->writestring("!("); | |
| 4888 if (tiargs) | |
| 4889 { | |
| 4890 for (int i = 0; i < tiargs->dim; i++) | |
| 4891 { if (i) | |
| 4892 buf->writebyte(','); | |
| 4893 Object *oarg = (Object *)tiargs->data[i]; | |
| 4894 Type *t = isType(oarg); | |
| 4895 Expression *e = isExpression(oarg); | |
| 4896 Dsymbol *s = isDsymbol(oarg); | |
| 4897 if (t) | |
| 4898 t->toCBuffer(buf, NULL, hgs); | |
| 4899 else if (e) | |
| 4900 e->toCBuffer(buf, hgs); | |
| 4901 else if (s) | |
| 4902 { | |
| 4903 char *p = s->ident ? s->ident->toChars() : s->toChars(); | |
| 4904 buf->writestring(p); | |
| 4905 } | |
| 4906 else if (!oarg) | |
| 4907 { | |
| 4908 buf->writestring("NULL"); | |
| 4909 } | |
| 4910 else | |
| 4911 { | |
| 4912 assert(0); | |
| 4913 } | |
| 4914 } | |
| 4915 } | |
| 4916 buf->writebyte(')'); | |
| 4917 if (ident) | |
| 4918 { | |
| 4919 buf->writebyte(' '); | |
| 4920 buf->writestring(ident->toChars()); | |
| 4921 } | |
| 4922 buf->writebyte(';'); | |
| 4923 buf->writenl(); | |
| 4924 } | |
| 4925 | |
| 4926 | |
|
1147
dbe4af57b240
Changed use of toObjFile to a new codegen method.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
parents:
1146
diff
changeset
|
4927 #if IN_DMD |
| 336 | 4928 void TemplateMixin::toObjFile(int multiobj) |
| 4929 { | |
| 4930 //printf("TemplateMixin::toObjFile('%s')\n", toChars()); | |
| 4931 TemplateInstance::toObjFile(multiobj); | |
| 4932 } | |
|
1174
0b26cfb2d445
Add newlines to end of file.
Christian Kamm <kamm incasoftware de>
parents:
1147
diff
changeset
|
4933 #endif |
|
0b26cfb2d445
Add newlines to end of file.
Christian Kamm <kamm incasoftware de>
parents:
1147
diff
changeset
|
4934 |