Mercurial > projects > ldc
annotate dmd/template.h @ 1169:2bff538fa3b9
Automated merge with http://hg.dsource.org/projects/ldc
author | Christian Kamm <kamm incasoftware de> |
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date | Sun, 29 Mar 2009 11:44:32 +0200 |
parents | dbe4af57b240 |
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2 // Compiler implementation of the D programming language | |
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3 // Copyright (c) 1999-2009 by Digital Mars |
159 | 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 #ifndef DMD_TEMPLATE_H | |
12 #define DMD_TEMPLATE_H | |
13 | |
14 #ifdef __DMC__ | |
15 #pragma once | |
16 #endif /* __DMC__ */ | |
17 | |
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18 #include <string> |
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19 |
159 | 20 #include "root.h" |
21 #include "arraytypes.h" | |
22 #include "dsymbol.h" | |
23 #include "mtype.h" | |
24 | |
25 | |
26 struct OutBuffer; | |
27 struct Identifier; | |
28 struct TemplateInstance; | |
29 struct TemplateParameter; | |
30 struct TemplateTypeParameter; | |
336 | 31 struct TemplateThisParameter; |
159 | 32 struct TemplateValueParameter; |
33 struct TemplateAliasParameter; | |
34 struct TemplateTupleParameter; | |
35 struct Type; | |
36 struct TypeTypeof; | |
37 struct Scope; | |
38 struct Expression; | |
39 struct AliasDeclaration; | |
40 struct FuncDeclaration; | |
41 struct HdrGenState; | |
42 enum MATCH; | |
43 | |
44 struct Tuple : Object | |
45 { | |
46 Objects objects; | |
47 | |
48 int dyncast() { return DYNCAST_TUPLE; } // kludge for template.isType() | |
49 }; | |
50 | |
51 | |
52 struct TemplateDeclaration : ScopeDsymbol | |
53 { | |
54 TemplateParameters *parameters; // array of TemplateParameter's | |
55 | |
56 TemplateParameters *origParameters; // originals for Ddoc | |
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57 #if DMDV2 |
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58 Expression *constraint; |
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59 #endif |
336 | 60 Array instances; // array of TemplateInstance's |
159 | 61 |
62 TemplateDeclaration *overnext; // next overloaded TemplateDeclaration | |
63 TemplateDeclaration *overroot; // first in overnext list | |
64 | |
65 Scope *scope; | |
66 Dsymbol *onemember; // if !=NULL then one member of this template | |
67 | |
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68 TemplateDeclaration(Loc loc, Identifier *id, TemplateParameters *parameters, |
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69 #if DMDV2 |
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70 Expression *constraint, |
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71 #endif |
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72 Array *decldefs); |
159 | 73 Dsymbol *syntaxCopy(Dsymbol *); |
74 void semantic(Scope *sc); | |
75 int overloadInsert(Dsymbol *s); | |
76 void toCBuffer(OutBuffer *buf, HdrGenState *hgs); | |
336 | 77 const char *kind(); |
159 | 78 char *toChars(); |
79 | |
80 void emitComment(Scope *sc); | |
81 // void toDocBuffer(OutBuffer *buf); | |
82 | |
83 MATCH matchWithInstance(TemplateInstance *ti, Objects *atypes, int flag); | |
84 int leastAsSpecialized(TemplateDeclaration *td2); | |
85 | |
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86 MATCH deduceFunctionTemplateMatch(Loc loc, Objects *targsi, Expression *ethis, Expressions *fargs, Objects *dedargs); |
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87 FuncDeclaration *deduceFunctionTemplate(Scope *sc, Loc loc, Objects *targsi, Expression *ethis, Expressions *fargs, int flags = 0); |
159 | 88 void declareParameter(Scope *sc, TemplateParameter *tp, Object *o); |
89 | |
90 TemplateDeclaration *isTemplateDeclaration() { return this; } | |
91 | |
92 TemplateTupleParameter *isVariadic(); | |
93 int isOverloadable(); | |
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94 |
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95 #if IN_LLVM |
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96 // LDC |
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97 std::string intrinsicName; |
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98 #endif |
159 | 99 }; |
100 | |
101 struct TemplateParameter | |
102 { | |
103 /* For type-parameter: | |
104 * template Foo(ident) // specType is set to NULL | |
105 * template Foo(ident : specType) | |
106 * For value-parameter: | |
107 * template Foo(valType ident) // specValue is set to NULL | |
108 * template Foo(valType ident : specValue) | |
109 * For alias-parameter: | |
110 * template Foo(alias ident) | |
111 */ | |
112 | |
113 Loc loc; | |
114 Identifier *ident; | |
115 | |
116 Declaration *sparam; | |
117 | |
118 TemplateParameter(Loc loc, Identifier *ident); | |
119 | |
120 virtual TemplateTypeParameter *isTemplateTypeParameter(); | |
121 virtual TemplateValueParameter *isTemplateValueParameter(); | |
122 virtual TemplateAliasParameter *isTemplateAliasParameter(); | |
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123 #if DMDV2 |
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124 virtual TemplateThisParameter *isTemplateThisParameter(); |
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125 #endif |
159 | 126 virtual TemplateTupleParameter *isTemplateTupleParameter(); |
127 | |
128 virtual TemplateParameter *syntaxCopy() = 0; | |
129 virtual void declareParameter(Scope *sc) = 0; | |
130 virtual void semantic(Scope *) = 0; | |
131 virtual void print(Object *oarg, Object *oded) = 0; | |
132 virtual void toCBuffer(OutBuffer *buf, HdrGenState *hgs) = 0; | |
133 virtual Object *specialization() = 0; | |
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134 virtual Object *defaultArg(Loc loc, Scope *sc) = 0; |
159 | 135 |
136 /* If TemplateParameter's match as far as overloading goes. | |
137 */ | |
138 virtual int overloadMatch(TemplateParameter *) = 0; | |
139 | |
140 /* Match actual argument against parameter. | |
141 */ | |
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142 virtual MATCH matchArg(Scope *sc, Objects *tiargs, int i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam, int flags = 0) = 0; |
159 | 143 |
144 /* Create dummy argument based on parameter. | |
145 */ | |
146 virtual void *dummyArg() = 0; | |
147 }; | |
148 | |
149 struct TemplateTypeParameter : TemplateParameter | |
150 { | |
151 /* Syntax: | |
152 * ident : specType = defaultType | |
153 */ | |
154 Type *specType; // type parameter: if !=NULL, this is the type specialization | |
155 Type *defaultType; | |
156 | |
157 TemplateTypeParameter(Loc loc, Identifier *ident, Type *specType, Type *defaultType); | |
158 | |
159 TemplateTypeParameter *isTemplateTypeParameter(); | |
160 TemplateParameter *syntaxCopy(); | |
161 void declareParameter(Scope *sc); | |
162 void semantic(Scope *); | |
163 void print(Object *oarg, Object *oded); | |
164 void toCBuffer(OutBuffer *buf, HdrGenState *hgs); | |
165 Object *specialization(); | |
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166 Object *defaultArg(Loc loc, Scope *sc); |
159 | 167 int overloadMatch(TemplateParameter *); |
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168 MATCH matchArg(Scope *sc, Objects *tiargs, int i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam, int flags); |
159 | 169 void *dummyArg(); |
170 }; | |
171 | |
336 | 172 #if DMDV2 |
173 struct TemplateThisParameter : TemplateTypeParameter | |
174 { | |
175 /* Syntax: | |
176 * this ident : specType = defaultType | |
177 */ | |
178 Type *specType; // type parameter: if !=NULL, this is the type specialization | |
179 Type *defaultType; | |
180 | |
181 TemplateThisParameter(Loc loc, Identifier *ident, Type *specType, Type *defaultType); | |
182 | |
183 TemplateThisParameter *isTemplateThisParameter(); | |
184 TemplateParameter *syntaxCopy(); | |
185 void toCBuffer(OutBuffer *buf, HdrGenState *hgs); | |
186 }; | |
187 #endif | |
188 | |
159 | 189 struct TemplateValueParameter : TemplateParameter |
190 { | |
191 /* Syntax: | |
192 * valType ident : specValue = defaultValue | |
193 */ | |
194 | |
195 Type *valType; | |
196 Expression *specValue; | |
197 Expression *defaultValue; | |
198 | |
199 static Expression *edummy; | |
200 | |
201 TemplateValueParameter(Loc loc, Identifier *ident, Type *valType, Expression *specValue, Expression *defaultValue); | |
202 | |
203 TemplateValueParameter *isTemplateValueParameter(); | |
204 TemplateParameter *syntaxCopy(); | |
205 void declareParameter(Scope *sc); | |
206 void semantic(Scope *); | |
207 void print(Object *oarg, Object *oded); | |
208 void toCBuffer(OutBuffer *buf, HdrGenState *hgs); | |
209 Object *specialization(); | |
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210 Object *defaultArg(Loc loc, Scope *sc); |
159 | 211 int overloadMatch(TemplateParameter *); |
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212 MATCH matchArg(Scope *sc, Objects *tiargs, int i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam, int flags); |
159 | 213 void *dummyArg(); |
214 }; | |
215 | |
216 struct TemplateAliasParameter : TemplateParameter | |
217 { | |
218 /* Syntax: | |
219 * ident : specAlias = defaultAlias | |
220 */ | |
221 | |
222 Type *specAliasT; | |
223 Dsymbol *specAlias; | |
224 | |
225 Type *defaultAlias; | |
226 | |
227 static Dsymbol *sdummy; | |
228 | |
229 TemplateAliasParameter(Loc loc, Identifier *ident, Type *specAliasT, Type *defaultAlias); | |
230 | |
231 TemplateAliasParameter *isTemplateAliasParameter(); | |
232 TemplateParameter *syntaxCopy(); | |
233 void declareParameter(Scope *sc); | |
234 void semantic(Scope *); | |
235 void print(Object *oarg, Object *oded); | |
236 void toCBuffer(OutBuffer *buf, HdrGenState *hgs); | |
237 Object *specialization(); | |
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238 Object *defaultArg(Loc loc, Scope *sc); |
159 | 239 int overloadMatch(TemplateParameter *); |
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240 MATCH matchArg(Scope *sc, Objects *tiargs, int i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam, int flags); |
159 | 241 void *dummyArg(); |
242 }; | |
243 | |
244 struct TemplateTupleParameter : TemplateParameter | |
245 { | |
246 /* Syntax: | |
247 * ident ... | |
248 */ | |
249 | |
250 TemplateTupleParameter(Loc loc, Identifier *ident); | |
251 | |
252 TemplateTupleParameter *isTemplateTupleParameter(); | |
253 TemplateParameter *syntaxCopy(); | |
254 void declareParameter(Scope *sc); | |
255 void semantic(Scope *); | |
256 void print(Object *oarg, Object *oded); | |
257 void toCBuffer(OutBuffer *buf, HdrGenState *hgs); | |
258 Object *specialization(); | |
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259 Object *defaultArg(Loc loc, Scope *sc); |
159 | 260 int overloadMatch(TemplateParameter *); |
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261 MATCH matchArg(Scope *sc, Objects *tiargs, int i, TemplateParameters *parameters, Objects *dedtypes, Declaration **psparam, int flags); |
159 | 262 void *dummyArg(); |
263 }; | |
264 | |
265 struct TemplateInstance : ScopeDsymbol | |
266 { | |
267 /* Given: | |
268 * foo!(args) => | |
269 * name = foo | |
270 * tiargs = args | |
271 */ | |
272 Identifier *name; | |
273 //Array idents; | |
274 Objects *tiargs; // Array of Types/Expressions of template | |
275 // instance arguments [int*, char, 10*10] | |
276 | |
277 Objects tdtypes; // Array of Types/Expressions corresponding | |
278 // to TemplateDeclaration.parameters | |
279 // [int, char, 100] | |
280 | |
281 TemplateDeclaration *tempdecl; // referenced by foo.bar.abc | |
282 TemplateInstance *inst; // refer to existing instance | |
283 ScopeDsymbol *argsym; // argument symbol table | |
284 AliasDeclaration *aliasdecl; // !=NULL if instance is an alias for its | |
285 // sole member | |
286 WithScopeSymbol *withsym; // if a member of a with statement | |
287 int semanticdone; // has semantic() been done? | |
336 | 288 int semantictiargsdone; // has semanticTiargs() been done? |
159 | 289 int nest; // for recursion detection |
290 int havetempdecl; // 1 if used second constructor | |
291 Dsymbol *isnested; // if referencing local symbols, this is the context | |
292 int errors; // 1 if compiled with errors | |
293 #ifdef IN_GCC | |
294 /* On some targets, it is necessary to know whether a symbol | |
295 will be emitted in the output or not before the symbol | |
296 is used. This can be different from getModule(). */ | |
297 Module * objFileModule; | |
298 #endif | |
299 | |
300 TemplateInstance(Loc loc, Identifier *temp_id); | |
301 TemplateInstance(Loc loc, TemplateDeclaration *tempdecl, Objects *tiargs); | |
302 static Objects *arraySyntaxCopy(Objects *objs); | |
303 Dsymbol *syntaxCopy(Dsymbol *); | |
304 void semantic(Scope *sc); | |
305 void semantic2(Scope *sc); | |
306 void semantic3(Scope *sc); | |
307 void inlineScan(); | |
308 void toCBuffer(OutBuffer *buf, HdrGenState *hgs); | |
309 Dsymbol *toAlias(); // resolve real symbol | |
336 | 310 const char *kind(); |
159 | 311 int oneMember(Dsymbol **ps); |
312 char *toChars(); | |
313 char *mangle(); | |
314 | |
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315 #if IN_DMD |
336 | 316 void toObjFile(int multiobj); // compile to .obj file |
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317 #endif |
159 | 318 |
319 // Internal | |
320 static void semanticTiargs(Loc loc, Scope *sc, Objects *tiargs); | |
321 void semanticTiargs(Scope *sc); | |
322 TemplateDeclaration *findTemplateDeclaration(Scope *sc); | |
323 TemplateDeclaration *findBestMatch(Scope *sc); | |
324 void declareParameters(Scope *sc); | |
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325 int hasNestedArgs(Objects *tiargs); |
159 | 326 Identifier *genIdent(); |
327 | |
328 TemplateInstance *isTemplateInstance() { return this; } | |
329 AliasDeclaration *isAliasDeclaration(); | |
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330 |
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331 #if IN_LLVM |
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332 // LDC |
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333 TemplateInstance *tinst; // enclosing template instance |
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334 Module* tmodule; // module from outermost enclosing template instantiation |
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335 Module* emittedInModule; // which module this template instance has been emitted in |
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336 void printInstantiationTrace(); |
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337 |
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338 void codegen(Ir*); |
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339 #endif |
159 | 340 }; |
341 | |
342 struct TemplateMixin : TemplateInstance | |
343 { | |
344 Array *idents; | |
345 Type *tqual; | |
346 | |
347 Scope *scope; // for forward referencing | |
348 | |
349 TemplateMixin(Loc loc, Identifier *ident, Type *tqual, Array *idents, Objects *tiargs); | |
350 Dsymbol *syntaxCopy(Dsymbol *s); | |
351 void semantic(Scope *sc); | |
352 void semantic2(Scope *sc); | |
353 void semantic3(Scope *sc); | |
354 void inlineScan(); | |
336 | 355 const char *kind(); |
159 | 356 int oneMember(Dsymbol **ps); |
357 int hasPointers(); | |
358 char *toChars(); | |
321 | 359 char *mangle(); |
159 | 360 void toCBuffer(OutBuffer *buf, HdrGenState *hgs); |
361 | |
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362 #if IN_DMD |
336 | 363 void toObjFile(int multiobj); // compile to .obj file |
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364 #endif |
159 | 365 |
366 TemplateMixin *isTemplateMixin() { return this; } | |
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367 |
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368 #if IN_LLVM |
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369 void codegen(Ir*); |
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370 #endif |
159 | 371 }; |
372 | |
373 Expression *isExpression(Object *o); | |
374 Dsymbol *isDsymbol(Object *o); | |
375 Type *isType(Object *o); | |
376 Tuple *isTuple(Object *o); | |
377 Type *getType(Object *o); | |
378 Dsymbol *getDsymbol(Object *o); | |
379 | |
380 void ObjectToCBuffer(OutBuffer *buf, HdrGenState *hgs, Object *oarg); | |
381 | |
382 #endif /* DMD_TEMPLATE_H */ |