Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 1 | //===--- SemaTemplateInstantiateDecl.cpp - C++ Template Decl Instantiation ===/ |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | //===----------------------------------------------------------------------===/ |
| 8 | // |
| 9 | // This file implements C++ template instantiation for declarations. |
| 10 | // |
| 11 | //===----------------------------------------------------------------------===/ |
John McCall | 2d88708 | 2010-08-25 22:03:47 +0000 | [diff] [blame] | 12 | #include "clang/Sema/SemaInternal.h" |
Douglas Gregor | e737f50 | 2010-08-12 20:07:10 +0000 | [diff] [blame] | 13 | #include "clang/Sema/Lookup.h" |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 14 | #include "clang/Sema/PrettyDeclStackTrace.h" |
John McCall | 7cd088e | 2010-08-24 07:21:54 +0000 | [diff] [blame] | 15 | #include "clang/Sema/Template.h" |
Douglas Gregor | aba43bb | 2009-05-26 20:50:29 +0000 | [diff] [blame] | 16 | #include "clang/AST/ASTConsumer.h" |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 17 | #include "clang/AST/ASTContext.h" |
| 18 | #include "clang/AST/DeclTemplate.h" |
| 19 | #include "clang/AST/DeclVisitor.h" |
John McCall | 0c01d18 | 2010-03-24 05:22:00 +0000 | [diff] [blame] | 20 | #include "clang/AST/DependentDiagnostic.h" |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 21 | #include "clang/AST/Expr.h" |
Douglas Gregor | a88cfbf | 2009-12-12 18:16:41 +0000 | [diff] [blame] | 22 | #include "clang/AST/ExprCXX.h" |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 23 | #include "clang/AST/TypeLoc.h" |
Douglas Gregor | 83ddad3 | 2009-08-26 21:14:46 +0000 | [diff] [blame] | 24 | #include "clang/Lex/Preprocessor.h" |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 25 | |
| 26 | using namespace clang; |
| 27 | |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 28 | bool TemplateDeclInstantiator::SubstQualifier(const DeclaratorDecl *OldDecl, |
| 29 | DeclaratorDecl *NewDecl) { |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 30 | if (!OldDecl->getQualifierLoc()) |
| 31 | return false; |
| 32 | |
| 33 | NestedNameSpecifierLoc NewQualifierLoc |
| 34 | = SemaRef.SubstNestedNameSpecifierLoc(OldDecl->getQualifierLoc(), |
| 35 | TemplateArgs); |
| 36 | |
| 37 | if (!NewQualifierLoc) |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 38 | return true; |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 39 | |
| 40 | NewDecl->setQualifierInfo(NewQualifierLoc); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 41 | return false; |
| 42 | } |
| 43 | |
| 44 | bool TemplateDeclInstantiator::SubstQualifier(const TagDecl *OldDecl, |
| 45 | TagDecl *NewDecl) { |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 46 | if (!OldDecl->getQualifierLoc()) |
| 47 | return false; |
| 48 | |
| 49 | NestedNameSpecifierLoc NewQualifierLoc |
| 50 | = SemaRef.SubstNestedNameSpecifierLoc(OldDecl->getQualifierLoc(), |
| 51 | TemplateArgs); |
| 52 | |
| 53 | if (!NewQualifierLoc) |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 54 | return true; |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 55 | |
| 56 | NewDecl->setQualifierInfo(NewQualifierLoc); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 57 | return false; |
| 58 | } |
| 59 | |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 60 | // FIXME: Is this still too simple? |
John McCall | 1d8d1cc | 2010-08-01 02:01:53 +0000 | [diff] [blame] | 61 | void Sema::InstantiateAttrs(const MultiLevelTemplateArgumentList &TemplateArgs, |
| 62 | Decl *Tmpl, Decl *New) { |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 63 | for (AttrVec::const_iterator i = Tmpl->attr_begin(), e = Tmpl->attr_end(); |
| 64 | i != e; ++i) { |
| 65 | const Attr *TmplAttr = *i; |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 66 | // FIXME: This should be generalized to more than just the AlignedAttr. |
| 67 | if (const AlignedAttr *Aligned = dyn_cast<AlignedAttr>(TmplAttr)) { |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 68 | if (Aligned->isAlignmentDependent()) { |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 69 | // The alignment expression is not potentially evaluated. |
John McCall | 1d8d1cc | 2010-08-01 02:01:53 +0000 | [diff] [blame] | 70 | EnterExpressionEvaluationContext Unevaluated(*this, |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 71 | Sema::Unevaluated); |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 72 | |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 73 | if (Aligned->isAlignmentExpr()) { |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 74 | ExprResult Result = SubstExpr(Aligned->getAlignmentExpr(), |
Nick Lewycky | 7663f39 | 2010-11-20 01:29:55 +0000 | [diff] [blame] | 75 | TemplateArgs); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 76 | if (!Result.isInvalid()) |
| 77 | AddAlignedAttr(Aligned->getLocation(), New, Result.takeAs<Expr>()); |
| 78 | } |
| 79 | else { |
| 80 | TypeSourceInfo *Result = SubstType(Aligned->getAlignmentType(), |
Nick Lewycky | 7663f39 | 2010-11-20 01:29:55 +0000 | [diff] [blame] | 81 | TemplateArgs, |
| 82 | Aligned->getLocation(), |
| 83 | DeclarationName()); |
Sean Hunt | cf807c4 | 2010-08-18 23:23:40 +0000 | [diff] [blame] | 84 | if (Result) |
| 85 | AddAlignedAttr(Aligned->getLocation(), New, Result); |
| 86 | } |
Chandler Carruth | 4ced79f | 2010-06-25 03:22:07 +0000 | [diff] [blame] | 87 | continue; |
| 88 | } |
| 89 | } |
| 90 | |
Anders Carlsson | d8fe2d5 | 2009-11-07 06:07:58 +0000 | [diff] [blame] | 91 | // FIXME: Is cloning correct for all attributes? |
John McCall | 1d8d1cc | 2010-08-01 02:01:53 +0000 | [diff] [blame] | 92 | Attr *NewAttr = TmplAttr->clone(Context); |
Anders Carlsson | d8fe2d5 | 2009-11-07 06:07:58 +0000 | [diff] [blame] | 93 | New->addAttr(NewAttr); |
| 94 | } |
| 95 | } |
| 96 | |
Douglas Gregor | 4f722be | 2009-03-25 15:45:12 +0000 | [diff] [blame] | 97 | Decl * |
| 98 | TemplateDeclInstantiator::VisitTranslationUnitDecl(TranslationUnitDecl *D) { |
| 99 | assert(false && "Translation units cannot be instantiated"); |
| 100 | return D; |
| 101 | } |
| 102 | |
| 103 | Decl * |
Chris Lattner | 57ad378 | 2011-02-17 20:34:02 +0000 | [diff] [blame] | 104 | TemplateDeclInstantiator::VisitLabelDecl(LabelDecl *D) { |
| 105 | LabelDecl *Inst = LabelDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
| 106 | D->getIdentifier()); |
| 107 | Owner->addDecl(Inst); |
| 108 | return Inst; |
| 109 | } |
| 110 | |
| 111 | Decl * |
Douglas Gregor | 4f722be | 2009-03-25 15:45:12 +0000 | [diff] [blame] | 112 | TemplateDeclInstantiator::VisitNamespaceDecl(NamespaceDecl *D) { |
| 113 | assert(false && "Namespaces cannot be instantiated"); |
| 114 | return D; |
| 115 | } |
| 116 | |
John McCall | 3dbd3d5 | 2010-02-16 06:53:13 +0000 | [diff] [blame] | 117 | Decl * |
| 118 | TemplateDeclInstantiator::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { |
| 119 | NamespaceAliasDecl *Inst |
| 120 | = NamespaceAliasDecl::Create(SemaRef.Context, Owner, |
| 121 | D->getNamespaceLoc(), |
| 122 | D->getAliasLoc(), |
Douglas Gregor | 0cfaf6a | 2011-02-25 17:08:07 +0000 | [diff] [blame] | 123 | D->getIdentifier(), |
| 124 | D->getQualifierLoc(), |
John McCall | 3dbd3d5 | 2010-02-16 06:53:13 +0000 | [diff] [blame] | 125 | D->getTargetNameLoc(), |
| 126 | D->getNamespace()); |
| 127 | Owner->addDecl(Inst); |
| 128 | return Inst; |
| 129 | } |
| 130 | |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 131 | Decl *TemplateDeclInstantiator::InstantiateTypedefNameDecl(TypedefNameDecl *D, |
| 132 | bool IsTypeAlias) { |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 133 | bool Invalid = false; |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 134 | TypeSourceInfo *DI = D->getTypeSourceInfo(); |
Douglas Gregor | 561f812 | 2011-07-01 01:22:09 +0000 | [diff] [blame] | 135 | if (DI->getType()->isInstantiationDependentType() || |
Douglas Gregor | 836adf6 | 2010-05-24 17:22:01 +0000 | [diff] [blame] | 136 | DI->getType()->isVariablyModifiedType()) { |
John McCall | ba6a9bd | 2009-10-24 08:00:42 +0000 | [diff] [blame] | 137 | DI = SemaRef.SubstType(DI, TemplateArgs, |
| 138 | D->getLocation(), D->getDeclName()); |
| 139 | if (!DI) { |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 140 | Invalid = true; |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 141 | DI = SemaRef.Context.getTrivialTypeSourceInfo(SemaRef.Context.IntTy); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 142 | } |
Douglas Gregor | b4eeaff | 2010-05-07 23:12:07 +0000 | [diff] [blame] | 143 | } else { |
| 144 | SemaRef.MarkDeclarationsReferencedInType(D->getLocation(), DI->getType()); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 145 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 146 | |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 147 | // Create the new typedef |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 148 | TypedefNameDecl *Typedef; |
| 149 | if (IsTypeAlias) |
| 150 | Typedef = TypeAliasDecl::Create(SemaRef.Context, Owner, D->getLocStart(), |
| 151 | D->getLocation(), D->getIdentifier(), DI); |
| 152 | else |
| 153 | Typedef = TypedefDecl::Create(SemaRef.Context, Owner, D->getLocStart(), |
| 154 | D->getLocation(), D->getIdentifier(), DI); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 155 | if (Invalid) |
| 156 | Typedef->setInvalidDecl(); |
| 157 | |
John McCall | cde5a40 | 2011-02-01 08:20:08 +0000 | [diff] [blame] | 158 | // If the old typedef was the name for linkage purposes of an anonymous |
| 159 | // tag decl, re-establish that relationship for the new typedef. |
| 160 | if (const TagType *oldTagType = D->getUnderlyingType()->getAs<TagType>()) { |
| 161 | TagDecl *oldTag = oldTagType->getDecl(); |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 162 | if (oldTag->getTypedefNameForAnonDecl() == D) { |
John McCall | cde5a40 | 2011-02-01 08:20:08 +0000 | [diff] [blame] | 163 | TagDecl *newTag = DI->getType()->castAs<TagType>()->getDecl(); |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 164 | assert(!newTag->getIdentifier() && !newTag->getTypedefNameForAnonDecl()); |
| 165 | newTag->setTypedefNameForAnonDecl(Typedef); |
John McCall | cde5a40 | 2011-02-01 08:20:08 +0000 | [diff] [blame] | 166 | } |
Douglas Gregor | d57a38e | 2010-04-23 16:25:07 +0000 | [diff] [blame] | 167 | } |
| 168 | |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 169 | if (TypedefNameDecl *Prev = D->getPreviousDeclaration()) { |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 170 | NamedDecl *InstPrev = SemaRef.FindInstantiatedDecl(D->getLocation(), Prev, |
| 171 | TemplateArgs); |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 172 | if (!InstPrev) |
| 173 | return 0; |
| 174 | |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 175 | Typedef->setPreviousDeclaration(cast<TypedefNameDecl>(InstPrev)); |
John McCall | 5126fd0 | 2009-12-30 00:31:22 +0000 | [diff] [blame] | 176 | } |
| 177 | |
John McCall | 1d8d1cc | 2010-08-01 02:01:53 +0000 | [diff] [blame] | 178 | SemaRef.InstantiateAttrs(TemplateArgs, D, Typedef); |
Douglas Gregor | d57a38e | 2010-04-23 16:25:07 +0000 | [diff] [blame] | 179 | |
John McCall | 46460a6 | 2010-01-20 21:53:11 +0000 | [diff] [blame] | 180 | Typedef->setAccess(D->getAccess()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 181 | |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 182 | return Typedef; |
| 183 | } |
| 184 | |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 185 | Decl *TemplateDeclInstantiator::VisitTypedefDecl(TypedefDecl *D) { |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 186 | Decl *Typedef = InstantiateTypedefNameDecl(D, /*IsTypeAlias=*/false); |
| 187 | Owner->addDecl(Typedef); |
| 188 | return Typedef; |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 189 | } |
| 190 | |
| 191 | Decl *TemplateDeclInstantiator::VisitTypeAliasDecl(TypeAliasDecl *D) { |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 192 | Decl *Typedef = InstantiateTypedefNameDecl(D, /*IsTypeAlias=*/true); |
| 193 | Owner->addDecl(Typedef); |
| 194 | return Typedef; |
| 195 | } |
| 196 | |
| 197 | Decl * |
| 198 | TemplateDeclInstantiator::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) { |
| 199 | // Create a local instantiation scope for this type alias template, which |
| 200 | // will contain the instantiations of the template parameters. |
| 201 | LocalInstantiationScope Scope(SemaRef); |
| 202 | |
| 203 | TemplateParameterList *TempParams = D->getTemplateParameters(); |
| 204 | TemplateParameterList *InstParams = SubstTemplateParams(TempParams); |
| 205 | if (!InstParams) |
| 206 | return 0; |
| 207 | |
| 208 | TypeAliasDecl *Pattern = D->getTemplatedDecl(); |
| 209 | |
| 210 | TypeAliasTemplateDecl *PrevAliasTemplate = 0; |
| 211 | if (Pattern->getPreviousDeclaration()) { |
| 212 | DeclContext::lookup_result Found = Owner->lookup(Pattern->getDeclName()); |
| 213 | if (Found.first != Found.second) { |
| 214 | PrevAliasTemplate = dyn_cast<TypeAliasTemplateDecl>(*Found.first); |
| 215 | } |
| 216 | } |
| 217 | |
| 218 | TypeAliasDecl *AliasInst = cast_or_null<TypeAliasDecl>( |
| 219 | InstantiateTypedefNameDecl(Pattern, /*IsTypeAlias=*/true)); |
| 220 | if (!AliasInst) |
| 221 | return 0; |
| 222 | |
| 223 | TypeAliasTemplateDecl *Inst |
| 224 | = TypeAliasTemplateDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
| 225 | D->getDeclName(), InstParams, AliasInst); |
| 226 | if (PrevAliasTemplate) |
| 227 | Inst->setPreviousDeclaration(PrevAliasTemplate); |
| 228 | |
| 229 | Inst->setAccess(D->getAccess()); |
| 230 | |
| 231 | if (!PrevAliasTemplate) |
| 232 | Inst->setInstantiatedFromMemberTemplate(D); |
| 233 | |
| 234 | Owner->addDecl(Inst); |
| 235 | |
| 236 | return Inst; |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 237 | } |
| 238 | |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 239 | /// \brief Instantiate an initializer, breaking it into separate |
| 240 | /// initialization arguments. |
| 241 | /// |
| 242 | /// \param S The semantic analysis object. |
| 243 | /// |
| 244 | /// \param Init The initializer to instantiate. |
| 245 | /// |
| 246 | /// \param TemplateArgs Template arguments to be substituted into the |
| 247 | /// initializer. |
| 248 | /// |
| 249 | /// \param NewArgs Will be filled in with the instantiation arguments. |
| 250 | /// |
| 251 | /// \returns true if an error occurred, false otherwise |
| 252 | static bool InstantiateInitializer(Sema &S, Expr *Init, |
| 253 | const MultiLevelTemplateArgumentList &TemplateArgs, |
| 254 | SourceLocation &LParenLoc, |
Nick Lewycky | 7663f39 | 2010-11-20 01:29:55 +0000 | [diff] [blame] | 255 | ASTOwningVector<Expr*> &NewArgs, |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 256 | SourceLocation &RParenLoc) { |
| 257 | NewArgs.clear(); |
| 258 | LParenLoc = SourceLocation(); |
| 259 | RParenLoc = SourceLocation(); |
| 260 | |
| 261 | if (!Init) |
| 262 | return false; |
| 263 | |
John McCall | 4765fa0 | 2010-12-06 08:20:24 +0000 | [diff] [blame] | 264 | if (ExprWithCleanups *ExprTemp = dyn_cast<ExprWithCleanups>(Init)) |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 265 | Init = ExprTemp->getSubExpr(); |
| 266 | |
| 267 | while (CXXBindTemporaryExpr *Binder = dyn_cast<CXXBindTemporaryExpr>(Init)) |
| 268 | Init = Binder->getSubExpr(); |
| 269 | |
| 270 | if (ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(Init)) |
| 271 | Init = ICE->getSubExprAsWritten(); |
| 272 | |
| 273 | if (ParenListExpr *ParenList = dyn_cast<ParenListExpr>(Init)) { |
| 274 | LParenLoc = ParenList->getLParenLoc(); |
| 275 | RParenLoc = ParenList->getRParenLoc(); |
Douglas Gregor | 91fc73e | 2011-01-07 19:35:17 +0000 | [diff] [blame] | 276 | return S.SubstExprs(ParenList->getExprs(), ParenList->getNumExprs(), |
| 277 | true, TemplateArgs, NewArgs); |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 278 | } |
| 279 | |
| 280 | if (CXXConstructExpr *Construct = dyn_cast<CXXConstructExpr>(Init)) { |
Douglas Gregor | 28329e5 | 2010-03-24 21:22:47 +0000 | [diff] [blame] | 281 | if (!isa<CXXTemporaryObjectExpr>(Construct)) { |
Douglas Gregor | 91fc73e | 2011-01-07 19:35:17 +0000 | [diff] [blame] | 282 | if (S.SubstExprs(Construct->getArgs(), Construct->getNumArgs(), true, |
| 283 | TemplateArgs, NewArgs)) |
Douglas Gregor | 28329e5 | 2010-03-24 21:22:47 +0000 | [diff] [blame] | 284 | return true; |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 285 | |
Douglas Gregor | 28329e5 | 2010-03-24 21:22:47 +0000 | [diff] [blame] | 286 | // FIXME: Fake locations! |
| 287 | LParenLoc = S.PP.getLocForEndOfToken(Init->getLocStart()); |
Douglas Gregor | a1a0478 | 2010-09-09 16:33:13 +0000 | [diff] [blame] | 288 | RParenLoc = LParenLoc; |
Douglas Gregor | 28329e5 | 2010-03-24 21:22:47 +0000 | [diff] [blame] | 289 | return false; |
| 290 | } |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 291 | } |
| 292 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 293 | ExprResult Result = S.SubstExpr(Init, TemplateArgs); |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 294 | if (Result.isInvalid()) |
| 295 | return true; |
| 296 | |
| 297 | NewArgs.push_back(Result.takeAs<Expr>()); |
| 298 | return false; |
| 299 | } |
| 300 | |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 301 | Decl *TemplateDeclInstantiator::VisitVarDecl(VarDecl *D) { |
Douglas Gregor | 9901c57 | 2010-05-21 00:31:19 +0000 | [diff] [blame] | 302 | // If this is the variable for an anonymous struct or union, |
| 303 | // instantiate the anonymous struct/union type first. |
| 304 | if (const RecordType *RecordTy = D->getType()->getAs<RecordType>()) |
| 305 | if (RecordTy->getDecl()->isAnonymousStructOrUnion()) |
| 306 | if (!VisitCXXRecordDecl(cast<CXXRecordDecl>(RecordTy->getDecl()))) |
| 307 | return 0; |
| 308 | |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 309 | // Do substitution on the type of the declaration |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 310 | TypeSourceInfo *DI = SemaRef.SubstType(D->getTypeSourceInfo(), |
John McCall | 0a5fa06 | 2009-10-21 02:39:02 +0000 | [diff] [blame] | 311 | TemplateArgs, |
| 312 | D->getTypeSpecStartLoc(), |
| 313 | D->getDeclName()); |
| 314 | if (!DI) |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 315 | return 0; |
| 316 | |
Douglas Gregor | c6dbc3f | 2010-09-12 07:37:24 +0000 | [diff] [blame] | 317 | if (DI->getType()->isFunctionType()) { |
| 318 | SemaRef.Diag(D->getLocation(), diag::err_variable_instantiates_to_function) |
| 319 | << D->isStaticDataMember() << DI->getType(); |
| 320 | return 0; |
| 321 | } |
| 322 | |
Douglas Gregor | b9f1b8d | 2009-05-15 00:01:03 +0000 | [diff] [blame] | 323 | // Build the instantiated declaration |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 324 | VarDecl *Var = VarDecl::Create(SemaRef.Context, Owner, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 325 | D->getInnerLocStart(), |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 326 | D->getLocation(), D->getIdentifier(), |
John McCall | 0a5fa06 | 2009-10-21 02:39:02 +0000 | [diff] [blame] | 327 | DI->getType(), DI, |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 328 | D->getStorageClass(), |
| 329 | D->getStorageClassAsWritten()); |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 330 | Var->setThreadSpecified(D->isThreadSpecified()); |
| 331 | Var->setCXXDirectInitializer(D->hasCXXDirectInitializer()); |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 332 | Var->setCXXForRangeDecl(D->isCXXForRangeDecl()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 333 | |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 334 | // Substitute the nested name specifier, if any. |
| 335 | if (SubstQualifier(D, Var)) |
| 336 | return 0; |
| 337 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 338 | // If we are instantiating a static data member defined |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 339 | // out-of-line, the instantiation will have the same lexical |
| 340 | // context (which will be a namespace scope) as the template. |
| 341 | if (D->isOutOfLine()) |
| 342 | Var->setLexicalDeclContext(D->getLexicalDeclContext()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 343 | |
John McCall | 46460a6 | 2010-01-20 21:53:11 +0000 | [diff] [blame] | 344 | Var->setAccess(D->getAccess()); |
Douglas Gregor | c070cc6 | 2010-06-17 23:14:26 +0000 | [diff] [blame] | 345 | |
Argyrios Kyrtzidis | 6b6b42a | 2011-04-19 19:51:10 +0000 | [diff] [blame] | 346 | if (!D->isStaticDataMember()) { |
Douglas Gregor | c070cc6 | 2010-06-17 23:14:26 +0000 | [diff] [blame] | 347 | Var->setUsed(D->isUsed(false)); |
Argyrios Kyrtzidis | 6b6b42a | 2011-04-19 19:51:10 +0000 | [diff] [blame] | 348 | Var->setReferenced(D->isReferenced()); |
| 349 | } |
Douglas Gregor | 4469e8a | 2010-05-19 17:02:24 +0000 | [diff] [blame] | 350 | |
Mike Stump | 390b4cc | 2009-05-16 07:39:55 +0000 | [diff] [blame] | 351 | // FIXME: In theory, we could have a previous declaration for variables that |
| 352 | // are not static data members. |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 353 | bool Redeclaration = false; |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 354 | // FIXME: having to fake up a LookupResult is dumb. |
| 355 | LookupResult Previous(SemaRef, Var->getDeclName(), Var->getLocation(), |
Douglas Gregor | 449d0a8 | 2010-03-01 19:11:54 +0000 | [diff] [blame] | 356 | Sema::LookupOrdinaryName, Sema::ForRedeclaration); |
Douglas Gregor | 60c93c9 | 2010-02-09 07:26:29 +0000 | [diff] [blame] | 357 | if (D->isStaticDataMember()) |
| 358 | SemaRef.LookupQualifiedName(Previous, Owner, false); |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 359 | SemaRef.CheckVariableDeclaration(Var, Previous, Redeclaration); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 360 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 361 | if (D->isOutOfLine()) { |
Abramo Bagnara | ea7b488 | 2010-06-04 09:35:39 +0000 | [diff] [blame] | 362 | if (!D->isStaticDataMember()) |
| 363 | D->getLexicalDeclContext()->addDecl(Var); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 364 | Owner->makeDeclVisibleInContext(Var); |
| 365 | } else { |
| 366 | Owner->addDecl(Var); |
Douglas Gregor | f7d72f5 | 2010-05-03 20:22:41 +0000 | [diff] [blame] | 367 | if (Owner->isFunctionOrMethod()) |
| 368 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Var); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 369 | } |
John McCall | 1d8d1cc | 2010-08-01 02:01:53 +0000 | [diff] [blame] | 370 | SemaRef.InstantiateAttrs(TemplateArgs, D, Var); |
Fariborz Jahanian | 8dd0c56 | 2010-07-13 00:16:40 +0000 | [diff] [blame] | 371 | |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 372 | // Link instantiations of static data members back to the template from |
| 373 | // which they were instantiated. |
| 374 | if (Var->isStaticDataMember()) |
| 375 | SemaRef.Context.setInstantiatedFromStaticDataMember(Var, D, |
Douglas Gregor | cf3293e | 2009-11-01 20:32:48 +0000 | [diff] [blame] | 376 | TSK_ImplicitInstantiation); |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 377 | |
Douglas Gregor | 60c93c9 | 2010-02-09 07:26:29 +0000 | [diff] [blame] | 378 | if (Var->getAnyInitializer()) { |
| 379 | // We already have an initializer in the class. |
| 380 | } else if (D->getInit()) { |
Douglas Gregor | 1f5f3a4 | 2009-12-03 17:10:37 +0000 | [diff] [blame] | 381 | if (Var->isStaticDataMember() && !D->isOutOfLine()) |
| 382 | SemaRef.PushExpressionEvaluationContext(Sema::Unevaluated); |
| 383 | else |
| 384 | SemaRef.PushExpressionEvaluationContext(Sema::PotentiallyEvaluated); |
| 385 | |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 386 | // Instantiate the initializer. |
| 387 | SourceLocation LParenLoc, RParenLoc; |
John McCall | ca0408f | 2010-08-23 06:44:23 +0000 | [diff] [blame] | 388 | ASTOwningVector<Expr*> InitArgs(SemaRef); |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 389 | if (!InstantiateInitializer(SemaRef, D->getInit(), TemplateArgs, LParenLoc, |
Douglas Gregor | a1a0478 | 2010-09-09 16:33:13 +0000 | [diff] [blame] | 390 | InitArgs, RParenLoc)) { |
Richard Smith | 34b41d9 | 2011-02-20 03:19:35 +0000 | [diff] [blame] | 391 | bool TypeMayContainAuto = true; |
Douglas Gregor | 07a77b4 | 2011-01-14 17:12:22 +0000 | [diff] [blame] | 392 | // Attach the initializer to the declaration, if we have one. |
| 393 | if (InitArgs.size() == 0) |
Richard Smith | 34b41d9 | 2011-02-20 03:19:35 +0000 | [diff] [blame] | 394 | SemaRef.ActOnUninitializedDecl(Var, TypeMayContainAuto); |
Douglas Gregor | 07a77b4 | 2011-01-14 17:12:22 +0000 | [diff] [blame] | 395 | else if (D->hasCXXDirectInitializer()) { |
Douglas Gregor | 6eef519 | 2009-12-14 19:27:10 +0000 | [diff] [blame] | 396 | // Add the direct initializer to the declaration. |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 397 | SemaRef.AddCXXDirectInitializerToDecl(Var, |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 398 | LParenLoc, |
Douglas Gregor | 6eef519 | 2009-12-14 19:27:10 +0000 | [diff] [blame] | 399 | move_arg(InitArgs), |
Richard Smith | 34b41d9 | 2011-02-20 03:19:35 +0000 | [diff] [blame] | 400 | RParenLoc, |
| 401 | TypeMayContainAuto); |
Douglas Gregor | 07a77b4 | 2011-01-14 17:12:22 +0000 | [diff] [blame] | 402 | } else { |
| 403 | assert(InitArgs.size() == 1); |
John McCall | 9ae2f07 | 2010-08-23 23:25:46 +0000 | [diff] [blame] | 404 | Expr *Init = InitArgs.take()[0]; |
Richard Smith | 34b41d9 | 2011-02-20 03:19:35 +0000 | [diff] [blame] | 405 | SemaRef.AddInitializerToDecl(Var, Init, false, TypeMayContainAuto); |
Douglas Gregor | 6eef519 | 2009-12-14 19:27:10 +0000 | [diff] [blame] | 406 | } |
Douglas Gregor | 6eef519 | 2009-12-14 19:27:10 +0000 | [diff] [blame] | 407 | } else { |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 408 | // FIXME: Not too happy about invalidating the declaration |
| 409 | // because of a bogus initializer. |
| 410 | Var->setInvalidDecl(); |
Douglas Gregor | 6eef519 | 2009-12-14 19:27:10 +0000 | [diff] [blame] | 411 | } |
| 412 | |
Douglas Gregor | 1f5f3a4 | 2009-12-03 17:10:37 +0000 | [diff] [blame] | 413 | SemaRef.PopExpressionEvaluationContext(); |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 414 | } else if ((!Var->isStaticDataMember() || Var->isOutOfLine()) && |
| 415 | !Var->isCXXForRangeDecl()) |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 416 | SemaRef.ActOnUninitializedDecl(Var, false); |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 417 | |
Richard Smith | e3499ca | 2011-06-21 23:42:09 +0000 | [diff] [blame] | 418 | // Diagnose unused local variables with dependent types, where the diagnostic |
| 419 | // will have been deferred. |
| 420 | if (!Var->isInvalidDecl() && Owner->isFunctionOrMethod() && !Var->isUsed() && |
| 421 | D->getType()->isDependentType()) |
Douglas Gregor | 5764f61 | 2010-05-08 23:05:03 +0000 | [diff] [blame] | 422 | SemaRef.DiagnoseUnusedDecl(Var); |
Argyrios Kyrtzidis | bbc6454 | 2010-08-15 01:15:20 +0000 | [diff] [blame] | 423 | |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 424 | return Var; |
| 425 | } |
| 426 | |
Abramo Bagnara | 6206d53 | 2010-06-05 05:09:32 +0000 | [diff] [blame] | 427 | Decl *TemplateDeclInstantiator::VisitAccessSpecDecl(AccessSpecDecl *D) { |
| 428 | AccessSpecDecl* AD |
| 429 | = AccessSpecDecl::Create(SemaRef.Context, D->getAccess(), Owner, |
| 430 | D->getAccessSpecifierLoc(), D->getColonLoc()); |
| 431 | Owner->addHiddenDecl(AD); |
| 432 | return AD; |
| 433 | } |
| 434 | |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 435 | Decl *TemplateDeclInstantiator::VisitFieldDecl(FieldDecl *D) { |
| 436 | bool Invalid = false; |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 437 | TypeSourceInfo *DI = D->getTypeSourceInfo(); |
Douglas Gregor | 561f812 | 2011-07-01 01:22:09 +0000 | [diff] [blame] | 438 | if (DI->getType()->isInstantiationDependentType() || |
Douglas Gregor | 836adf6 | 2010-05-24 17:22:01 +0000 | [diff] [blame] | 439 | DI->getType()->isVariablyModifiedType()) { |
John McCall | 07fb6be | 2009-10-22 23:33:21 +0000 | [diff] [blame] | 440 | DI = SemaRef.SubstType(DI, TemplateArgs, |
| 441 | D->getLocation(), D->getDeclName()); |
| 442 | if (!DI) { |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 443 | DI = D->getTypeSourceInfo(); |
John McCall | 07fb6be | 2009-10-22 23:33:21 +0000 | [diff] [blame] | 444 | Invalid = true; |
| 445 | } else if (DI->getType()->isFunctionType()) { |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 446 | // C++ [temp.arg.type]p3: |
| 447 | // If a declaration acquires a function type through a type |
| 448 | // dependent on a template-parameter and this causes a |
| 449 | // declaration that does not use the syntactic form of a |
| 450 | // function declarator to have function type, the program is |
| 451 | // ill-formed. |
| 452 | SemaRef.Diag(D->getLocation(), diag::err_field_instantiates_to_function) |
John McCall | 07fb6be | 2009-10-22 23:33:21 +0000 | [diff] [blame] | 453 | << DI->getType(); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 454 | Invalid = true; |
| 455 | } |
Douglas Gregor | b4eeaff | 2010-05-07 23:12:07 +0000 | [diff] [blame] | 456 | } else { |
| 457 | SemaRef.MarkDeclarationsReferencedInType(D->getLocation(), DI->getType()); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 458 | } |
| 459 | |
| 460 | Expr *BitWidth = D->getBitWidth(); |
| 461 | if (Invalid) |
| 462 | BitWidth = 0; |
| 463 | else if (BitWidth) { |
Douglas Gregor | ac7610d | 2009-06-22 20:57:11 +0000 | [diff] [blame] | 464 | // The bit-width expression is not potentially evaluated. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 465 | EnterExpressionEvaluationContext Unevaluated(SemaRef, Sema::Unevaluated); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 466 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 467 | ExprResult InstantiatedBitWidth |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 468 | = SemaRef.SubstExpr(BitWidth, TemplateArgs); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 469 | if (InstantiatedBitWidth.isInvalid()) { |
| 470 | Invalid = true; |
| 471 | BitWidth = 0; |
| 472 | } else |
Anders Carlsson | e9146f2 | 2009-05-01 19:49:17 +0000 | [diff] [blame] | 473 | BitWidth = InstantiatedBitWidth.takeAs<Expr>(); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 474 | } |
| 475 | |
John McCall | 07fb6be | 2009-10-22 23:33:21 +0000 | [diff] [blame] | 476 | FieldDecl *Field = SemaRef.CheckFieldDecl(D->getDeclName(), |
| 477 | DI->getType(), DI, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 478 | cast<RecordDecl>(Owner), |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 479 | D->getLocation(), |
| 480 | D->isMutable(), |
| 481 | BitWidth, |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 482 | D->hasInClassInitializer(), |
Steve Naroff | ea218b8 | 2009-07-14 14:58:18 +0000 | [diff] [blame] | 483 | D->getTypeSpecStartLoc(), |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 484 | D->getAccess(), |
| 485 | 0); |
Douglas Gregor | 663b5a0 | 2009-10-14 20:14:33 +0000 | [diff] [blame] | 486 | if (!Field) { |
| 487 | cast<Decl>(Owner)->setInvalidDecl(); |
Anders Carlsson | f4b5f5c | 2009-09-02 19:17:55 +0000 | [diff] [blame] | 488 | return 0; |
Douglas Gregor | 663b5a0 | 2009-10-14 20:14:33 +0000 | [diff] [blame] | 489 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 490 | |
John McCall | 1d8d1cc | 2010-08-01 02:01:53 +0000 | [diff] [blame] | 491 | SemaRef.InstantiateAttrs(TemplateArgs, D, Field); |
Anders Carlsson | d8fe2d5 | 2009-11-07 06:07:58 +0000 | [diff] [blame] | 492 | |
Anders Carlsson | f4b5f5c | 2009-09-02 19:17:55 +0000 | [diff] [blame] | 493 | if (Invalid) |
| 494 | Field->setInvalidDecl(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 495 | |
Anders Carlsson | f4b5f5c | 2009-09-02 19:17:55 +0000 | [diff] [blame] | 496 | if (!Field->getDeclName()) { |
| 497 | // Keep track of where this decl came from. |
| 498 | SemaRef.Context.setInstantiatedFromUnnamedFieldDecl(Field, D); |
Douglas Gregor | 9901c57 | 2010-05-21 00:31:19 +0000 | [diff] [blame] | 499 | } |
| 500 | if (CXXRecordDecl *Parent= dyn_cast<CXXRecordDecl>(Field->getDeclContext())) { |
| 501 | if (Parent->isAnonymousStructOrUnion() && |
Sebastian Redl | 7a126a4 | 2010-08-31 00:36:30 +0000 | [diff] [blame] | 502 | Parent->getRedeclContext()->isFunctionOrMethod()) |
Douglas Gregor | 9901c57 | 2010-05-21 00:31:19 +0000 | [diff] [blame] | 503 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Field); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 504 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 505 | |
Anders Carlsson | f4b5f5c | 2009-09-02 19:17:55 +0000 | [diff] [blame] | 506 | Field->setImplicit(D->isImplicit()); |
John McCall | 46460a6 | 2010-01-20 21:53:11 +0000 | [diff] [blame] | 507 | Field->setAccess(D->getAccess()); |
Anders Carlsson | f4b5f5c | 2009-09-02 19:17:55 +0000 | [diff] [blame] | 508 | Owner->addDecl(Field); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 509 | |
| 510 | return Field; |
| 511 | } |
| 512 | |
Francois Pichet | 87c2e12 | 2010-11-21 06:08:52 +0000 | [diff] [blame] | 513 | Decl *TemplateDeclInstantiator::VisitIndirectFieldDecl(IndirectFieldDecl *D) { |
| 514 | NamedDecl **NamedChain = |
| 515 | new (SemaRef.Context)NamedDecl*[D->getChainingSize()]; |
| 516 | |
| 517 | int i = 0; |
| 518 | for (IndirectFieldDecl::chain_iterator PI = |
| 519 | D->chain_begin(), PE = D->chain_end(); |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 520 | PI != PE; ++PI) { |
| 521 | NamedDecl *Next = SemaRef.FindInstantiatedDecl(D->getLocation(), *PI, |
| 522 | TemplateArgs); |
| 523 | if (!Next) |
| 524 | return 0; |
| 525 | |
| 526 | NamedChain[i++] = Next; |
| 527 | } |
Francois Pichet | 87c2e12 | 2010-11-21 06:08:52 +0000 | [diff] [blame] | 528 | |
Francois Pichet | 40e1775 | 2010-12-09 10:07:54 +0000 | [diff] [blame] | 529 | QualType T = cast<FieldDecl>(NamedChain[i-1])->getType(); |
Francois Pichet | 87c2e12 | 2010-11-21 06:08:52 +0000 | [diff] [blame] | 530 | IndirectFieldDecl* IndirectField |
| 531 | = IndirectFieldDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
Francois Pichet | 40e1775 | 2010-12-09 10:07:54 +0000 | [diff] [blame] | 532 | D->getIdentifier(), T, |
Francois Pichet | 87c2e12 | 2010-11-21 06:08:52 +0000 | [diff] [blame] | 533 | NamedChain, D->getChainingSize()); |
| 534 | |
| 535 | |
| 536 | IndirectField->setImplicit(D->isImplicit()); |
| 537 | IndirectField->setAccess(D->getAccess()); |
| 538 | Owner->addDecl(IndirectField); |
| 539 | return IndirectField; |
| 540 | } |
| 541 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 542 | Decl *TemplateDeclInstantiator::VisitFriendDecl(FriendDecl *D) { |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 543 | // Handle friend type expressions by simply substituting template |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 544 | // parameters into the pattern type and checking the result. |
John McCall | 32f2fb5 | 2010-03-25 18:04:51 +0000 | [diff] [blame] | 545 | if (TypeSourceInfo *Ty = D->getFriendType()) { |
Chandler Carruth | 4fb86f8 | 2011-05-01 00:51:33 +0000 | [diff] [blame] | 546 | TypeSourceInfo *InstTy; |
| 547 | // If this is an unsupported friend, don't bother substituting template |
| 548 | // arguments into it. The actual type referred to won't be used by any |
| 549 | // parts of Clang, and may not be valid for instantiating. Just use the |
| 550 | // same info for the instantiated friend. |
| 551 | if (D->isUnsupportedFriend()) { |
| 552 | InstTy = Ty; |
| 553 | } else { |
| 554 | InstTy = SemaRef.SubstType(Ty, TemplateArgs, |
| 555 | D->getLocation(), DeclarationName()); |
| 556 | } |
| 557 | if (!InstTy) |
Douglas Gregor | 7557a13 | 2009-12-24 20:56:24 +0000 | [diff] [blame] | 558 | return 0; |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 559 | |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 560 | FriendDecl *FD = SemaRef.CheckFriendTypeDecl(D->getFriendLoc(), InstTy); |
| 561 | if (!FD) |
| 562 | return 0; |
| 563 | |
| 564 | FD->setAccess(AS_public); |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 565 | FD->setUnsupportedFriend(D->isUnsupportedFriend()); |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 566 | Owner->addDecl(FD); |
| 567 | return FD; |
| 568 | } |
| 569 | |
| 570 | NamedDecl *ND = D->getFriendDecl(); |
| 571 | assert(ND && "friend decl must be a decl or a type!"); |
| 572 | |
John McCall | af2094e | 2010-04-08 09:05:18 +0000 | [diff] [blame] | 573 | // All of the Visit implementations for the various potential friend |
| 574 | // declarations have to be carefully written to work for friend |
| 575 | // objects, with the most important detail being that the target |
| 576 | // decl should almost certainly not be placed in Owner. |
| 577 | Decl *NewND = Visit(ND); |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 578 | if (!NewND) return 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 579 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 580 | FriendDecl *FD = |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 581 | FriendDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
| 582 | cast<NamedDecl>(NewND), D->getFriendLoc()); |
John McCall | 5fee110 | 2009-08-29 03:50:18 +0000 | [diff] [blame] | 583 | FD->setAccess(AS_public); |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 584 | FD->setUnsupportedFriend(D->isUnsupportedFriend()); |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 585 | Owner->addDecl(FD); |
| 586 | return FD; |
John McCall | fd810b1 | 2009-08-14 02:03:10 +0000 | [diff] [blame] | 587 | } |
| 588 | |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 589 | Decl *TemplateDeclInstantiator::VisitStaticAssertDecl(StaticAssertDecl *D) { |
| 590 | Expr *AssertExpr = D->getAssertExpr(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 591 | |
Douglas Gregor | ac7610d | 2009-06-22 20:57:11 +0000 | [diff] [blame] | 592 | // The expression in a static assertion is not potentially evaluated. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 593 | EnterExpressionEvaluationContext Unevaluated(SemaRef, Sema::Unevaluated); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 594 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 595 | ExprResult InstantiatedAssertExpr |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 596 | = SemaRef.SubstExpr(AssertExpr, TemplateArgs); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 597 | if (InstantiatedAssertExpr.isInvalid()) |
| 598 | return 0; |
| 599 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 600 | ExprResult Message(D->getMessage()); |
John McCall | 3fa5cae | 2010-10-26 07:05:15 +0000 | [diff] [blame] | 601 | D->getMessage(); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 602 | return SemaRef.ActOnStaticAssertDeclaration(D->getLocation(), |
John McCall | 9ae2f07 | 2010-08-23 23:25:46 +0000 | [diff] [blame] | 603 | InstantiatedAssertExpr.get(), |
Abramo Bagnara | a2026c9 | 2011-03-08 16:41:52 +0000 | [diff] [blame] | 604 | Message.get(), |
| 605 | D->getRParenLoc()); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 606 | } |
| 607 | |
| 608 | Decl *TemplateDeclInstantiator::VisitEnumDecl(EnumDecl *D) { |
Abramo Bagnara | ba877ad | 2011-03-09 14:09:51 +0000 | [diff] [blame] | 609 | EnumDecl *Enum = EnumDecl::Create(SemaRef.Context, Owner, D->getLocStart(), |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 610 | D->getLocation(), D->getIdentifier(), |
Abramo Bagnara | a88cefd | 2010-12-03 18:54:17 +0000 | [diff] [blame] | 611 | /*PrevDecl=*/0, D->isScoped(), |
| 612 | D->isScopedUsingClassTag(), D->isFixed()); |
Douglas Gregor | 1274ccd | 2010-10-08 23:50:27 +0000 | [diff] [blame] | 613 | if (D->isFixed()) { |
| 614 | if (TypeSourceInfo* TI = D->getIntegerTypeSourceInfo()) { |
| 615 | // If we have type source information for the underlying type, it means it |
| 616 | // has been explicitly set by the user. Perform substitution on it before |
| 617 | // moving on. |
| 618 | SourceLocation UnderlyingLoc = TI->getTypeLoc().getBeginLoc(); |
| 619 | Enum->setIntegerTypeSourceInfo(SemaRef.SubstType(TI, |
| 620 | TemplateArgs, |
| 621 | UnderlyingLoc, |
| 622 | DeclarationName())); |
| 623 | |
| 624 | if (!Enum->getIntegerTypeSourceInfo()) |
| 625 | Enum->setIntegerType(SemaRef.Context.IntTy); |
| 626 | } |
| 627 | else { |
| 628 | assert(!D->getIntegerType()->isDependentType() |
| 629 | && "Dependent type without type source info"); |
| 630 | Enum->setIntegerType(D->getIntegerType()); |
| 631 | } |
| 632 | } |
| 633 | |
John McCall | 5b629aa | 2010-10-22 23:36:17 +0000 | [diff] [blame] | 634 | SemaRef.InstantiateAttrs(TemplateArgs, D, Enum); |
| 635 | |
Douglas Gregor | 8dbc3c6 | 2009-05-27 17:20:35 +0000 | [diff] [blame] | 636 | Enum->setInstantiationOfMemberEnum(D); |
Douglas Gregor | 06c0fec | 2009-03-25 22:00:53 +0000 | [diff] [blame] | 637 | Enum->setAccess(D->getAccess()); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 638 | if (SubstQualifier(D, Enum)) return 0; |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 639 | Owner->addDecl(Enum); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 640 | Enum->startDefinition(); |
| 641 | |
Douglas Gregor | 96084f1 | 2010-03-01 19:00:07 +0000 | [diff] [blame] | 642 | if (D->getDeclContext()->isFunctionOrMethod()) |
| 643 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Enum); |
| 644 | |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 645 | llvm::SmallVector<Decl*, 4> Enumerators; |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 646 | |
| 647 | EnumConstantDecl *LastEnumConst = 0; |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 648 | for (EnumDecl::enumerator_iterator EC = D->enumerator_begin(), |
| 649 | ECEnd = D->enumerator_end(); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 650 | EC != ECEnd; ++EC) { |
| 651 | // The specified value for the enumerator. |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 652 | ExprResult Value = SemaRef.Owned((Expr *)0); |
Douglas Gregor | ac7610d | 2009-06-22 20:57:11 +0000 | [diff] [blame] | 653 | if (Expr *UninstValue = EC->getInitExpr()) { |
| 654 | // The enumerator's value expression is not potentially evaluated. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 655 | EnterExpressionEvaluationContext Unevaluated(SemaRef, |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 656 | Sema::Unevaluated); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 657 | |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 658 | Value = SemaRef.SubstExpr(UninstValue, TemplateArgs); |
Douglas Gregor | ac7610d | 2009-06-22 20:57:11 +0000 | [diff] [blame] | 659 | } |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 660 | |
| 661 | // Drop the initial value and continue. |
| 662 | bool isInvalid = false; |
| 663 | if (Value.isInvalid()) { |
| 664 | Value = SemaRef.Owned((Expr *)0); |
| 665 | isInvalid = true; |
| 666 | } |
| 667 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 668 | EnumConstantDecl *EnumConst |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 669 | = SemaRef.CheckEnumConstant(Enum, LastEnumConst, |
| 670 | EC->getLocation(), EC->getIdentifier(), |
John McCall | 9ae2f07 | 2010-08-23 23:25:46 +0000 | [diff] [blame] | 671 | Value.get()); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 672 | |
| 673 | if (isInvalid) { |
| 674 | if (EnumConst) |
| 675 | EnumConst->setInvalidDecl(); |
| 676 | Enum->setInvalidDecl(); |
| 677 | } |
| 678 | |
| 679 | if (EnumConst) { |
John McCall | 5b629aa | 2010-10-22 23:36:17 +0000 | [diff] [blame] | 680 | SemaRef.InstantiateAttrs(TemplateArgs, *EC, EnumConst); |
| 681 | |
John McCall | 3b85ecf | 2010-01-23 22:37:59 +0000 | [diff] [blame] | 682 | EnumConst->setAccess(Enum->getAccess()); |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 683 | Enum->addDecl(EnumConst); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 684 | Enumerators.push_back(EnumConst); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 685 | LastEnumConst = EnumConst; |
Douglas Gregor | 96084f1 | 2010-03-01 19:00:07 +0000 | [diff] [blame] | 686 | |
| 687 | if (D->getDeclContext()->isFunctionOrMethod()) { |
| 688 | // If the enumeration is within a function or method, record the enum |
| 689 | // constant as a local. |
| 690 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(*EC, EnumConst); |
| 691 | } |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 692 | } |
| 693 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 694 | |
Mike Stump | c6e35aa | 2009-05-16 07:06:02 +0000 | [diff] [blame] | 695 | // FIXME: Fixup LBraceLoc and RBraceLoc |
Edward O'Callaghan | fee1381 | 2009-08-08 14:36:57 +0000 | [diff] [blame] | 696 | // FIXME: Empty Scope and AttributeList (required to handle attribute packed). |
Mike Stump | c6e35aa | 2009-05-16 07:06:02 +0000 | [diff] [blame] | 697 | SemaRef.ActOnEnumBody(Enum->getLocation(), SourceLocation(), SourceLocation(), |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 698 | Enum, |
Eli Friedman | de7a0fc | 2010-08-15 02:27:09 +0000 | [diff] [blame] | 699 | Enumerators.data(), Enumerators.size(), |
Edward O'Callaghan | fee1381 | 2009-08-08 14:36:57 +0000 | [diff] [blame] | 700 | 0, 0); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 701 | |
| 702 | return Enum; |
| 703 | } |
| 704 | |
Douglas Gregor | 6477b69 | 2009-03-25 15:04:13 +0000 | [diff] [blame] | 705 | Decl *TemplateDeclInstantiator::VisitEnumConstantDecl(EnumConstantDecl *D) { |
| 706 | assert(false && "EnumConstantDecls can only occur within EnumDecls."); |
| 707 | return 0; |
| 708 | } |
| 709 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 710 | Decl *TemplateDeclInstantiator::VisitClassTemplateDecl(ClassTemplateDecl *D) { |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 711 | bool isFriend = (D->getFriendObjectKind() != Decl::FOK_None); |
| 712 | |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 713 | // Create a local instantiation scope for this class template, which |
| 714 | // will contain the instantiations of the template parameters. |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 715 | LocalInstantiationScope Scope(SemaRef); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 716 | TemplateParameterList *TempParams = D->getTemplateParameters(); |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 717 | TemplateParameterList *InstParams = SubstTemplateParams(TempParams); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 718 | if (!InstParams) |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 719 | return NULL; |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 720 | |
| 721 | CXXRecordDecl *Pattern = D->getTemplatedDecl(); |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 722 | |
| 723 | // Instantiate the qualifier. We have to do this first in case |
| 724 | // we're a friend declaration, because if we are then we need to put |
| 725 | // the new declaration in the appropriate context. |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 726 | NestedNameSpecifierLoc QualifierLoc = Pattern->getQualifierLoc(); |
| 727 | if (QualifierLoc) { |
| 728 | QualifierLoc = SemaRef.SubstNestedNameSpecifierLoc(QualifierLoc, |
| 729 | TemplateArgs); |
| 730 | if (!QualifierLoc) |
| 731 | return 0; |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 732 | } |
| 733 | |
| 734 | CXXRecordDecl *PrevDecl = 0; |
| 735 | ClassTemplateDecl *PrevClassTemplate = 0; |
| 736 | |
Nick Lewycky | 37574f5 | 2010-11-08 23:29:42 +0000 | [diff] [blame] | 737 | if (!isFriend && Pattern->getPreviousDeclaration()) { |
| 738 | DeclContext::lookup_result Found = Owner->lookup(Pattern->getDeclName()); |
| 739 | if (Found.first != Found.second) { |
| 740 | PrevClassTemplate = dyn_cast<ClassTemplateDecl>(*Found.first); |
| 741 | if (PrevClassTemplate) |
| 742 | PrevDecl = PrevClassTemplate->getTemplatedDecl(); |
| 743 | } |
| 744 | } |
| 745 | |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 746 | // If this isn't a friend, then it's a member template, in which |
| 747 | // case we just want to build the instantiation in the |
| 748 | // specialization. If it is a friend, we want to build it in |
| 749 | // the appropriate context. |
| 750 | DeclContext *DC = Owner; |
| 751 | if (isFriend) { |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 752 | if (QualifierLoc) { |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 753 | CXXScopeSpec SS; |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 754 | SS.Adopt(QualifierLoc); |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 755 | DC = SemaRef.computeDeclContext(SS); |
| 756 | if (!DC) return 0; |
| 757 | } else { |
| 758 | DC = SemaRef.FindInstantiatedContext(Pattern->getLocation(), |
| 759 | Pattern->getDeclContext(), |
| 760 | TemplateArgs); |
| 761 | } |
| 762 | |
| 763 | // Look for a previous declaration of the template in the owning |
| 764 | // context. |
| 765 | LookupResult R(SemaRef, Pattern->getDeclName(), Pattern->getLocation(), |
| 766 | Sema::LookupOrdinaryName, Sema::ForRedeclaration); |
| 767 | SemaRef.LookupQualifiedName(R, DC); |
| 768 | |
| 769 | if (R.isSingleResult()) { |
| 770 | PrevClassTemplate = R.getAsSingle<ClassTemplateDecl>(); |
| 771 | if (PrevClassTemplate) |
| 772 | PrevDecl = PrevClassTemplate->getTemplatedDecl(); |
| 773 | } |
| 774 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 775 | if (!PrevClassTemplate && QualifierLoc) { |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 776 | SemaRef.Diag(Pattern->getLocation(), diag::err_not_tag_in_scope) |
Douglas Gregor | 1eabb7d | 2010-03-31 23:17:41 +0000 | [diff] [blame] | 777 | << D->getTemplatedDecl()->getTagKind() << Pattern->getDeclName() << DC |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 778 | << QualifierLoc.getSourceRange(); |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 779 | return 0; |
| 780 | } |
| 781 | |
Douglas Gregor | c53d0d7 | 2010-04-08 18:16:15 +0000 | [diff] [blame] | 782 | bool AdoptedPreviousTemplateParams = false; |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 783 | if (PrevClassTemplate) { |
Douglas Gregor | c53d0d7 | 2010-04-08 18:16:15 +0000 | [diff] [blame] | 784 | bool Complain = true; |
| 785 | |
| 786 | // HACK: libstdc++ 4.2.1 contains an ill-formed friend class |
| 787 | // template for struct std::tr1::__detail::_Map_base, where the |
| 788 | // template parameters of the friend declaration don't match the |
| 789 | // template parameters of the original declaration. In this one |
| 790 | // case, we don't complain about the ill-formed friend |
| 791 | // declaration. |
| 792 | if (isFriend && Pattern->getIdentifier() && |
| 793 | Pattern->getIdentifier()->isStr("_Map_base") && |
| 794 | DC->isNamespace() && |
| 795 | cast<NamespaceDecl>(DC)->getIdentifier() && |
| 796 | cast<NamespaceDecl>(DC)->getIdentifier()->isStr("__detail")) { |
| 797 | DeclContext *DCParent = DC->getParent(); |
| 798 | if (DCParent->isNamespace() && |
| 799 | cast<NamespaceDecl>(DCParent)->getIdentifier() && |
| 800 | cast<NamespaceDecl>(DCParent)->getIdentifier()->isStr("tr1")) { |
| 801 | DeclContext *DCParent2 = DCParent->getParent(); |
| 802 | if (DCParent2->isNamespace() && |
| 803 | cast<NamespaceDecl>(DCParent2)->getIdentifier() && |
| 804 | cast<NamespaceDecl>(DCParent2)->getIdentifier()->isStr("std") && |
| 805 | DCParent2->getParent()->isTranslationUnit()) |
| 806 | Complain = false; |
| 807 | } |
| 808 | } |
| 809 | |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 810 | TemplateParameterList *PrevParams |
| 811 | = PrevClassTemplate->getTemplateParameters(); |
| 812 | |
| 813 | // Make sure the parameter lists match. |
| 814 | if (!SemaRef.TemplateParameterListsAreEqual(InstParams, PrevParams, |
Douglas Gregor | c53d0d7 | 2010-04-08 18:16:15 +0000 | [diff] [blame] | 815 | Complain, |
| 816 | Sema::TPL_TemplateMatch)) { |
| 817 | if (Complain) |
| 818 | return 0; |
| 819 | |
| 820 | AdoptedPreviousTemplateParams = true; |
| 821 | InstParams = PrevParams; |
| 822 | } |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 823 | |
| 824 | // Do some additional validation, then merge default arguments |
| 825 | // from the existing declarations. |
Douglas Gregor | c53d0d7 | 2010-04-08 18:16:15 +0000 | [diff] [blame] | 826 | if (!AdoptedPreviousTemplateParams && |
| 827 | SemaRef.CheckTemplateParameterList(InstParams, PrevParams, |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 828 | Sema::TPC_ClassTemplate)) |
| 829 | return 0; |
| 830 | } |
| 831 | } |
| 832 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 833 | CXXRecordDecl *RecordInst |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 834 | = CXXRecordDecl::Create(SemaRef.Context, Pattern->getTagKind(), DC, |
Abramo Bagnara | ba877ad | 2011-03-09 14:09:51 +0000 | [diff] [blame] | 835 | Pattern->getLocStart(), Pattern->getLocation(), |
| 836 | Pattern->getIdentifier(), PrevDecl, |
Douglas Gregor | f0510d4 | 2009-10-12 23:11:44 +0000 | [diff] [blame] | 837 | /*DelayTypeCreation=*/true); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 838 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 839 | if (QualifierLoc) |
| 840 | RecordInst->setQualifierInfo(QualifierLoc); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 841 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 842 | ClassTemplateDecl *Inst |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 843 | = ClassTemplateDecl::Create(SemaRef.Context, DC, D->getLocation(), |
| 844 | D->getIdentifier(), InstParams, RecordInst, |
| 845 | PrevClassTemplate); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 846 | RecordInst->setDescribedClassTemplate(Inst); |
John McCall | ea7390c | 2010-04-08 20:25:50 +0000 | [diff] [blame] | 847 | |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 848 | if (isFriend) { |
John McCall | ea7390c | 2010-04-08 20:25:50 +0000 | [diff] [blame] | 849 | if (PrevClassTemplate) |
| 850 | Inst->setAccess(PrevClassTemplate->getAccess()); |
| 851 | else |
| 852 | Inst->setAccess(D->getAccess()); |
| 853 | |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 854 | Inst->setObjectOfFriendDecl(PrevClassTemplate != 0); |
| 855 | // TODO: do we want to track the instantiation progeny of this |
| 856 | // friend target decl? |
| 857 | } else { |
Douglas Gregor | e8c01bd | 2009-10-30 21:07:27 +0000 | [diff] [blame] | 858 | Inst->setAccess(D->getAccess()); |
Nick Lewycky | 37574f5 | 2010-11-08 23:29:42 +0000 | [diff] [blame] | 859 | if (!PrevClassTemplate) |
| 860 | Inst->setInstantiatedFromMemberTemplate(D); |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 861 | } |
Douglas Gregor | f0510d4 | 2009-10-12 23:11:44 +0000 | [diff] [blame] | 862 | |
| 863 | // Trigger creation of the type for the instantiation. |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 864 | SemaRef.Context.getInjectedClassNameType(RecordInst, |
Douglas Gregor | 24bae92 | 2010-07-08 18:37:38 +0000 | [diff] [blame] | 865 | Inst->getInjectedClassNameSpecialization()); |
John McCall | ea7390c | 2010-04-08 20:25:50 +0000 | [diff] [blame] | 866 | |
Douglas Gregor | 259571e | 2009-10-30 22:42:42 +0000 | [diff] [blame] | 867 | // Finish handling of friends. |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 868 | if (isFriend) { |
| 869 | DC->makeDeclVisibleInContext(Inst, /*Recoverable*/ false); |
Douglas Gregor | e8c01bd | 2009-10-30 21:07:27 +0000 | [diff] [blame] | 870 | return Inst; |
Douglas Gregor | 259571e | 2009-10-30 22:42:42 +0000 | [diff] [blame] | 871 | } |
Douglas Gregor | e8c01bd | 2009-10-30 21:07:27 +0000 | [diff] [blame] | 872 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 873 | Owner->addDecl(Inst); |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 874 | |
| 875 | if (!PrevClassTemplate) { |
| 876 | // Queue up any out-of-line partial specializations of this member |
| 877 | // class template; the client will force their instantiation once |
| 878 | // the enclosing class has been instantiated. |
| 879 | llvm::SmallVector<ClassTemplatePartialSpecializationDecl *, 4> PartialSpecs; |
| 880 | D->getPartialSpecializations(PartialSpecs); |
| 881 | for (unsigned I = 0, N = PartialSpecs.size(); I != N; ++I) |
| 882 | if (PartialSpecs[I]->isOutOfLine()) |
| 883 | OutOfLinePartialSpecs.push_back(std::make_pair(Inst, PartialSpecs[I])); |
| 884 | } |
| 885 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 886 | return Inst; |
| 887 | } |
| 888 | |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 889 | Decl * |
Douglas Gregor | 7974c3b | 2009-10-07 17:21:34 +0000 | [diff] [blame] | 890 | TemplateDeclInstantiator::VisitClassTemplatePartialSpecializationDecl( |
| 891 | ClassTemplatePartialSpecializationDecl *D) { |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 892 | ClassTemplateDecl *ClassTemplate = D->getSpecializedTemplate(); |
| 893 | |
| 894 | // Lookup the already-instantiated declaration in the instantiation |
| 895 | // of the class template and return that. |
| 896 | DeclContext::lookup_result Found |
| 897 | = Owner->lookup(ClassTemplate->getDeclName()); |
| 898 | if (Found.first == Found.second) |
| 899 | return 0; |
| 900 | |
| 901 | ClassTemplateDecl *InstClassTemplate |
| 902 | = dyn_cast<ClassTemplateDecl>(*Found.first); |
| 903 | if (!InstClassTemplate) |
| 904 | return 0; |
| 905 | |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 906 | if (ClassTemplatePartialSpecializationDecl *Result |
| 907 | = InstClassTemplate->findPartialSpecInstantiatedFromMember(D)) |
| 908 | return Result; |
| 909 | |
| 910 | return InstantiateClassTemplatePartialSpecialization(InstClassTemplate, D); |
Douglas Gregor | 7974c3b | 2009-10-07 17:21:34 +0000 | [diff] [blame] | 911 | } |
| 912 | |
| 913 | Decl * |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 914 | TemplateDeclInstantiator::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) { |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 915 | // Create a local instantiation scope for this function template, which |
| 916 | // will contain the instantiations of the template parameters and then get |
| 917 | // merged with the local instantiation scope for the function template |
| 918 | // itself. |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 919 | LocalInstantiationScope Scope(SemaRef); |
Douglas Gregor | 895162d | 2010-04-30 18:55:50 +0000 | [diff] [blame] | 920 | |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 921 | TemplateParameterList *TempParams = D->getTemplateParameters(); |
| 922 | TemplateParameterList *InstParams = SubstTemplateParams(TempParams); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 923 | if (!InstParams) |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 924 | return NULL; |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 925 | |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 926 | FunctionDecl *Instantiated = 0; |
| 927 | if (CXXMethodDecl *DMethod = dyn_cast<CXXMethodDecl>(D->getTemplatedDecl())) |
| 928 | Instantiated = cast_or_null<FunctionDecl>(VisitCXXMethodDecl(DMethod, |
| 929 | InstParams)); |
| 930 | else |
| 931 | Instantiated = cast_or_null<FunctionDecl>(VisitFunctionDecl( |
| 932 | D->getTemplatedDecl(), |
| 933 | InstParams)); |
| 934 | |
| 935 | if (!Instantiated) |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 936 | return 0; |
| 937 | |
John McCall | 46460a6 | 2010-01-20 21:53:11 +0000 | [diff] [blame] | 938 | Instantiated->setAccess(D->getAccess()); |
| 939 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 940 | // Link the instantiated function template declaration to the function |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 941 | // template from which it was instantiated. |
Douglas Gregor | 37d68185 | 2009-10-12 22:27:17 +0000 | [diff] [blame] | 942 | FunctionTemplateDecl *InstTemplate |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 943 | = Instantiated->getDescribedFunctionTemplate(); |
Douglas Gregor | 37d68185 | 2009-10-12 22:27:17 +0000 | [diff] [blame] | 944 | InstTemplate->setAccess(D->getAccess()); |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 945 | assert(InstTemplate && |
| 946 | "VisitFunctionDecl/CXXMethodDecl didn't create a template!"); |
John McCall | e976ffe | 2009-12-14 23:19:40 +0000 | [diff] [blame] | 947 | |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 948 | bool isFriend = (InstTemplate->getFriendObjectKind() != Decl::FOK_None); |
| 949 | |
John McCall | e976ffe | 2009-12-14 23:19:40 +0000 | [diff] [blame] | 950 | // Link the instantiation back to the pattern *unless* this is a |
| 951 | // non-definition friend declaration. |
| 952 | if (!InstTemplate->getInstantiatedFromMemberTemplate() && |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 953 | !(isFriend && !D->getTemplatedDecl()->isThisDeclarationADefinition())) |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 954 | InstTemplate->setInstantiatedFromMemberTemplate(D); |
| 955 | |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 956 | // Make declarations visible in the appropriate context. |
| 957 | if (!isFriend) |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 958 | Owner->addDecl(InstTemplate); |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 959 | |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 960 | return InstTemplate; |
| 961 | } |
| 962 | |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 963 | Decl *TemplateDeclInstantiator::VisitCXXRecordDecl(CXXRecordDecl *D) { |
| 964 | CXXRecordDecl *PrevDecl = 0; |
| 965 | if (D->isInjectedClassName()) |
| 966 | PrevDecl = cast<CXXRecordDecl>(Owner); |
John McCall | 6c1c1b8 | 2009-12-15 22:29:06 +0000 | [diff] [blame] | 967 | else if (D->getPreviousDeclaration()) { |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 968 | NamedDecl *Prev = SemaRef.FindInstantiatedDecl(D->getLocation(), |
| 969 | D->getPreviousDeclaration(), |
John McCall | 6c1c1b8 | 2009-12-15 22:29:06 +0000 | [diff] [blame] | 970 | TemplateArgs); |
| 971 | if (!Prev) return 0; |
| 972 | PrevDecl = cast<CXXRecordDecl>(Prev); |
| 973 | } |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 974 | |
| 975 | CXXRecordDecl *Record |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 976 | = CXXRecordDecl::Create(SemaRef.Context, D->getTagKind(), Owner, |
Abramo Bagnara | ba877ad | 2011-03-09 14:09:51 +0000 | [diff] [blame] | 977 | D->getLocStart(), D->getLocation(), |
| 978 | D->getIdentifier(), PrevDecl); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 979 | |
| 980 | // Substitute the nested name specifier, if any. |
| 981 | if (SubstQualifier(D, Record)) |
| 982 | return 0; |
| 983 | |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 984 | Record->setImplicit(D->isImplicit()); |
Eli Friedman | eaba1af | 2009-08-27 19:11:42 +0000 | [diff] [blame] | 985 | // FIXME: Check against AS_none is an ugly hack to work around the issue that |
| 986 | // the tag decls introduced by friend class declarations don't have an access |
| 987 | // specifier. Remove once this area of the code gets sorted out. |
| 988 | if (D->getAccess() != AS_none) |
| 989 | Record->setAccess(D->getAccess()); |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 990 | if (!D->isInjectedClassName()) |
Douglas Gregor | f6b1185 | 2009-10-08 15:14:33 +0000 | [diff] [blame] | 991 | Record->setInstantiationOfMemberClass(D, TSK_ImplicitInstantiation); |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 992 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 993 | // If the original function was part of a friend declaration, |
| 994 | // inherit its namespace state. |
| 995 | if (Decl::FriendObjectKind FOK = D->getFriendObjectKind()) |
| 996 | Record->setObjectOfFriendDecl(FOK == Decl::FOK_Declared); |
| 997 | |
Douglas Gregor | 9901c57 | 2010-05-21 00:31:19 +0000 | [diff] [blame] | 998 | // Make sure that anonymous structs and unions are recorded. |
| 999 | if (D->isAnonymousStructOrUnion()) { |
| 1000 | Record->setAnonymousStructOrUnion(true); |
Sebastian Redl | 7a126a4 | 2010-08-31 00:36:30 +0000 | [diff] [blame] | 1001 | if (Record->getDeclContext()->getRedeclContext()->isFunctionOrMethod()) |
Douglas Gregor | 9901c57 | 2010-05-21 00:31:19 +0000 | [diff] [blame] | 1002 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Record); |
| 1003 | } |
Anders Carlsson | d8b285f | 2009-09-01 04:26:58 +0000 | [diff] [blame] | 1004 | |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 1005 | Owner->addDecl(Record); |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 1006 | return Record; |
| 1007 | } |
| 1008 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 1009 | /// Normal class members are of more specific types and therefore |
| 1010 | /// don't make it here. This function serves two purposes: |
| 1011 | /// 1) instantiating function templates |
| 1012 | /// 2) substituting friend declarations |
| 1013 | /// FIXME: preserve function definitions in case #2 |
Douglas Gregor | 7557a13 | 2009-12-24 20:56:24 +0000 | [diff] [blame] | 1014 | Decl *TemplateDeclInstantiator::VisitFunctionDecl(FunctionDecl *D, |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1015 | TemplateParameterList *TemplateParams) { |
Douglas Gregor | 127102b | 2009-06-29 20:59:39 +0000 | [diff] [blame] | 1016 | // Check whether there is already a function template specialization for |
| 1017 | // this declaration. |
| 1018 | FunctionTemplateDecl *FunctionTemplate = D->getDescribedFunctionTemplate(); |
| 1019 | void *InsertPos = 0; |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1020 | if (FunctionTemplate && !TemplateParams) { |
Douglas Gregor | 24bae92 | 2010-07-08 18:37:38 +0000 | [diff] [blame] | 1021 | std::pair<const TemplateArgument *, unsigned> Innermost |
| 1022 | = TemplateArgs.getInnermost(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1023 | |
Argyrios Kyrtzidis | 2c853e4 | 2010-07-20 13:59:58 +0000 | [diff] [blame] | 1024 | FunctionDecl *SpecFunc |
| 1025 | = FunctionTemplate->findSpecialization(Innermost.first, Innermost.second, |
| 1026 | InsertPos); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1027 | |
Douglas Gregor | 127102b | 2009-06-29 20:59:39 +0000 | [diff] [blame] | 1028 | // If we already have a function template specialization, return it. |
Argyrios Kyrtzidis | 2c853e4 | 2010-07-20 13:59:58 +0000 | [diff] [blame] | 1029 | if (SpecFunc) |
| 1030 | return SpecFunc; |
Douglas Gregor | 127102b | 2009-06-29 20:59:39 +0000 | [diff] [blame] | 1031 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1032 | |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1033 | bool isFriend; |
| 1034 | if (FunctionTemplate) |
| 1035 | isFriend = (FunctionTemplate->getFriendObjectKind() != Decl::FOK_None); |
| 1036 | else |
| 1037 | isFriend = (D->getFriendObjectKind() != Decl::FOK_None); |
| 1038 | |
Douglas Gregor | 79c2278 | 2010-01-16 20:21:20 +0000 | [diff] [blame] | 1039 | bool MergeWithParentScope = (TemplateParams != 0) || |
Douglas Gregor | b212d9a | 2010-05-21 21:25:08 +0000 | [diff] [blame] | 1040 | Owner->isFunctionOrMethod() || |
Douglas Gregor | 79c2278 | 2010-01-16 20:21:20 +0000 | [diff] [blame] | 1041 | !(isa<Decl>(Owner) && |
| 1042 | cast<Decl>(Owner)->isDefinedOutsideFunctionOrMethod()); |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 1043 | LocalInstantiationScope Scope(SemaRef, MergeWithParentScope); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1044 | |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 1045 | llvm::SmallVector<ParmVarDecl *, 4> Params; |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 1046 | TypeSourceInfo *TInfo = D->getTypeSourceInfo(); |
| 1047 | TInfo = SubstFunctionType(D, Params); |
| 1048 | if (!TInfo) |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1049 | return 0; |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 1050 | QualType T = TInfo->getType(); |
John McCall | fd810b1 | 2009-08-14 02:03:10 +0000 | [diff] [blame] | 1051 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1052 | NestedNameSpecifierLoc QualifierLoc = D->getQualifierLoc(); |
| 1053 | if (QualifierLoc) { |
| 1054 | QualifierLoc = SemaRef.SubstNestedNameSpecifierLoc(QualifierLoc, |
| 1055 | TemplateArgs); |
| 1056 | if (!QualifierLoc) |
| 1057 | return 0; |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1058 | } |
| 1059 | |
John McCall | 68b6b87 | 2010-02-06 01:50:47 +0000 | [diff] [blame] | 1060 | // If we're instantiating a local function declaration, put the result |
| 1061 | // in the owner; otherwise we need to find the instantiated context. |
| 1062 | DeclContext *DC; |
| 1063 | if (D->getDeclContext()->isFunctionOrMethod()) |
| 1064 | DC = Owner; |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1065 | else if (isFriend && QualifierLoc) { |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1066 | CXXScopeSpec SS; |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1067 | SS.Adopt(QualifierLoc); |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1068 | DC = SemaRef.computeDeclContext(SS); |
| 1069 | if (!DC) return 0; |
| 1070 | } else { |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 1071 | DC = SemaRef.FindInstantiatedContext(D->getLocation(), D->getDeclContext(), |
| 1072 | TemplateArgs); |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1073 | } |
John McCall | 68b6b87 | 2010-02-06 01:50:47 +0000 | [diff] [blame] | 1074 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 1075 | FunctionDecl *Function = |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1076 | FunctionDecl::Create(SemaRef.Context, DC, D->getInnerLocStart(), |
| 1077 | D->getLocation(), D->getDeclName(), T, TInfo, |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 1078 | D->getStorageClass(), D->getStorageClassAsWritten(), |
Douglas Gregor | 0130f3c | 2009-10-27 21:01:01 +0000 | [diff] [blame] | 1079 | D->isInlineSpecified(), D->hasWrittenPrototype()); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 1080 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1081 | if (QualifierLoc) |
| 1082 | Function->setQualifierInfo(QualifierLoc); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 1083 | |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 1084 | DeclContext *LexicalDC = Owner; |
| 1085 | if (!isFriend && D->isOutOfLine()) { |
| 1086 | assert(D->getDeclContext()->isFileContext()); |
| 1087 | LexicalDC = D->getDeclContext(); |
| 1088 | } |
| 1089 | |
| 1090 | Function->setLexicalDeclContext(LexicalDC); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1091 | |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 1092 | // Attach the parameters |
Douglas Gregor | 1d441ee | 2011-06-22 18:16:25 +0000 | [diff] [blame] | 1093 | if (isa<FunctionProtoType>(Function->getType())) { |
| 1094 | // Adopt the already-instantiated parameters into our own context. |
| 1095 | for (unsigned P = 0; P < Params.size(); ++P) |
| 1096 | if (Params[P]) |
| 1097 | Params[P]->setOwningFunction(Function); |
| 1098 | } else { |
| 1099 | // Since we were instantiated via a typedef of a function type, create |
| 1100 | // new parameters. |
| 1101 | const FunctionProtoType *Proto |
| 1102 | = Function->getType()->getAs<FunctionProtoType>(); |
| 1103 | assert(Proto && "No function prototype in template instantiation?"); |
| 1104 | for (FunctionProtoType::arg_type_iterator AI = Proto->arg_type_begin(), |
| 1105 | AE = Proto->arg_type_end(); AI != AE; ++AI) { |
| 1106 | ParmVarDecl *Param |
| 1107 | = SemaRef.BuildParmVarDeclForTypedef(Function, Function->getLocation(), |
| 1108 | *AI); |
| 1109 | Param->setScopeInfo(0, Params.size()); |
| 1110 | Params.push_back(Param); |
| 1111 | } |
| 1112 | } |
Douglas Gregor | 838db38 | 2010-02-11 01:19:42 +0000 | [diff] [blame] | 1113 | Function->setParams(Params.data(), Params.size()); |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 1114 | |
Douglas Gregor | ac7c2c8 | 2010-05-17 16:38:00 +0000 | [diff] [blame] | 1115 | SourceLocation InstantiateAtPOI; |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1116 | if (TemplateParams) { |
| 1117 | // Our resulting instantiation is actually a function template, since we |
| 1118 | // are substituting only the outer template parameters. For example, given |
| 1119 | // |
| 1120 | // template<typename T> |
| 1121 | // struct X { |
| 1122 | // template<typename U> friend void f(T, U); |
| 1123 | // }; |
| 1124 | // |
| 1125 | // X<int> x; |
| 1126 | // |
| 1127 | // We are instantiating the friend function template "f" within X<int>, |
| 1128 | // which means substituting int for T, but leaving "f" as a friend function |
| 1129 | // template. |
| 1130 | // Build the function template itself. |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1131 | FunctionTemplate = FunctionTemplateDecl::Create(SemaRef.Context, DC, |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1132 | Function->getLocation(), |
| 1133 | Function->getDeclName(), |
| 1134 | TemplateParams, Function); |
| 1135 | Function->setDescribedFunctionTemplate(FunctionTemplate); |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 1136 | |
| 1137 | FunctionTemplate->setLexicalDeclContext(LexicalDC); |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1138 | |
| 1139 | if (isFriend && D->isThisDeclarationADefinition()) { |
| 1140 | // TODO: should we remember this connection regardless of whether |
| 1141 | // the friend declaration provided a body? |
| 1142 | FunctionTemplate->setInstantiatedFromMemberTemplate( |
| 1143 | D->getDescribedFunctionTemplate()); |
| 1144 | } |
Douglas Gregor | 66724ea | 2009-11-14 01:20:54 +0000 | [diff] [blame] | 1145 | } else if (FunctionTemplate) { |
| 1146 | // Record this function template specialization. |
Douglas Gregor | 24bae92 | 2010-07-08 18:37:38 +0000 | [diff] [blame] | 1147 | std::pair<const TemplateArgument *, unsigned> Innermost |
| 1148 | = TemplateArgs.getInnermost(); |
Douglas Gregor | 838db38 | 2010-02-11 01:19:42 +0000 | [diff] [blame] | 1149 | Function->setFunctionTemplateSpecialization(FunctionTemplate, |
Douglas Gregor | 910f800 | 2010-11-07 23:05:16 +0000 | [diff] [blame] | 1150 | TemplateArgumentList::CreateCopy(SemaRef.Context, |
Douglas Gregor | 24bae92 | 2010-07-08 18:37:38 +0000 | [diff] [blame] | 1151 | Innermost.first, |
| 1152 | Innermost.second), |
Douglas Gregor | 66724ea | 2009-11-14 01:20:54 +0000 | [diff] [blame] | 1153 | InsertPos); |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1154 | } else if (isFriend && D->isThisDeclarationADefinition()) { |
| 1155 | // TODO: should we remember this connection regardless of whether |
| 1156 | // the friend declaration provided a body? |
| 1157 | Function->setInstantiationOfMemberFunction(D, TSK_ImplicitInstantiation); |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 1158 | } |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1159 | |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 1160 | if (InitFunctionInstantiation(Function, D)) |
| 1161 | Function->setInvalidDecl(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1162 | |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 1163 | bool Redeclaration = false; |
John McCall | af2094e | 2010-04-08 09:05:18 +0000 | [diff] [blame] | 1164 | bool isExplicitSpecialization = false; |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1165 | |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 1166 | LookupResult Previous(SemaRef, Function->getDeclName(), SourceLocation(), |
| 1167 | Sema::LookupOrdinaryName, Sema::ForRedeclaration); |
| 1168 | |
John McCall | af2094e | 2010-04-08 09:05:18 +0000 | [diff] [blame] | 1169 | if (DependentFunctionTemplateSpecializationInfo *Info |
| 1170 | = D->getDependentSpecializationInfo()) { |
| 1171 | assert(isFriend && "non-friend has dependent specialization info?"); |
| 1172 | |
| 1173 | // This needs to be set now for future sanity. |
| 1174 | Function->setObjectOfFriendDecl(/*HasPrevious*/ true); |
| 1175 | |
| 1176 | // Instantiate the explicit template arguments. |
| 1177 | TemplateArgumentListInfo ExplicitArgs(Info->getLAngleLoc(), |
| 1178 | Info->getRAngleLoc()); |
Douglas Gregor | e02e262 | 2010-12-22 21:19:48 +0000 | [diff] [blame] | 1179 | if (SemaRef.Subst(Info->getTemplateArgs(), Info->getNumTemplateArgs(), |
| 1180 | ExplicitArgs, TemplateArgs)) |
| 1181 | return 0; |
John McCall | af2094e | 2010-04-08 09:05:18 +0000 | [diff] [blame] | 1182 | |
| 1183 | // Map the candidate templates to their instantiations. |
| 1184 | for (unsigned I = 0, E = Info->getNumTemplates(); I != E; ++I) { |
| 1185 | Decl *Temp = SemaRef.FindInstantiatedDecl(D->getLocation(), |
| 1186 | Info->getTemplate(I), |
| 1187 | TemplateArgs); |
| 1188 | if (!Temp) return 0; |
| 1189 | |
| 1190 | Previous.addDecl(cast<FunctionTemplateDecl>(Temp)); |
| 1191 | } |
| 1192 | |
| 1193 | if (SemaRef.CheckFunctionTemplateSpecialization(Function, |
| 1194 | &ExplicitArgs, |
| 1195 | Previous)) |
| 1196 | Function->setInvalidDecl(); |
| 1197 | |
| 1198 | isExplicitSpecialization = true; |
| 1199 | |
| 1200 | } else if (TemplateParams || !FunctionTemplate) { |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1201 | // Look only into the namespace where the friend would be declared to |
| 1202 | // find a previous declaration. This is the innermost enclosing namespace, |
| 1203 | // as described in ActOnFriendFunctionDecl. |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 1204 | SemaRef.LookupQualifiedName(Previous, DC); |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1205 | |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1206 | // In C++, the previous declaration we find might be a tag type |
| 1207 | // (class or enum). In this case, the new declaration will hide the |
| 1208 | // tag type. Note that this does does not apply if we're declaring a |
| 1209 | // typedef (C++ [dcl.typedef]p4). |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 1210 | if (Previous.isSingleTagDecl()) |
| 1211 | Previous.clear(); |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1212 | } |
| 1213 | |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1214 | SemaRef.CheckFunctionDeclaration(/*Scope*/ 0, Function, Previous, |
Peter Collingbourne | c80e811 | 2011-01-21 02:08:54 +0000 | [diff] [blame] | 1215 | isExplicitSpecialization, Redeclaration); |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1216 | |
John McCall | 76d3264 | 2010-04-24 01:30:58 +0000 | [diff] [blame] | 1217 | NamedDecl *PrincipalDecl = (TemplateParams |
| 1218 | ? cast<NamedDecl>(FunctionTemplate) |
| 1219 | : Function); |
| 1220 | |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1221 | // If the original function was part of a friend declaration, |
| 1222 | // inherit its namespace state and add it to the owner. |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1223 | if (isFriend) { |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 1224 | NamedDecl *PrevDecl; |
John McCall | 76d3264 | 2010-04-24 01:30:58 +0000 | [diff] [blame] | 1225 | if (TemplateParams) |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1226 | PrevDecl = FunctionTemplate->getPreviousDeclaration(); |
John McCall | 76d3264 | 2010-04-24 01:30:58 +0000 | [diff] [blame] | 1227 | else |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1228 | PrevDecl = Function->getPreviousDeclaration(); |
John McCall | 76d3264 | 2010-04-24 01:30:58 +0000 | [diff] [blame] | 1229 | |
| 1230 | PrincipalDecl->setObjectOfFriendDecl(PrevDecl != 0); |
| 1231 | DC->makeDeclVisibleInContext(PrincipalDecl, /*Recoverable=*/ false); |
Gabor Greif | ab297ac | 2010-08-30 21:10:05 +0000 | [diff] [blame] | 1232 | |
Gabor Greif | 77535df | 2010-08-30 22:25:56 +0000 | [diff] [blame] | 1233 | bool queuedInstantiation = false; |
Gabor Greif | ab297ac | 2010-08-30 21:10:05 +0000 | [diff] [blame] | 1234 | |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1235 | if (!SemaRef.getLangOptions().CPlusPlus0x && |
| 1236 | D->isThisDeclarationADefinition()) { |
| 1237 | // Check for a function body. |
| 1238 | const FunctionDecl *Definition = 0; |
Sean Hunt | 10620eb | 2011-05-06 20:44:56 +0000 | [diff] [blame] | 1239 | if (Function->isDefined(Definition) && |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1240 | Definition->getTemplateSpecializationKind() == TSK_Undeclared) { |
| 1241 | SemaRef.Diag(Function->getLocation(), diag::err_redefinition) |
| 1242 | << Function->getDeclName(); |
| 1243 | SemaRef.Diag(Definition->getLocation(), diag::note_previous_definition); |
| 1244 | Function->setInvalidDecl(); |
| 1245 | } |
| 1246 | // Check for redefinitions due to other instantiations of this or |
| 1247 | // a similar friend function. |
| 1248 | else for (FunctionDecl::redecl_iterator R = Function->redecls_begin(), |
| 1249 | REnd = Function->redecls_end(); |
| 1250 | R != REnd; ++R) { |
Gabor Greif | 13a8aff | 2010-08-28 15:42:30 +0000 | [diff] [blame] | 1251 | if (*R == Function) |
| 1252 | continue; |
Gabor Greif | ab297ac | 2010-08-30 21:10:05 +0000 | [diff] [blame] | 1253 | switch (R->getFriendObjectKind()) { |
| 1254 | case Decl::FOK_None: |
| 1255 | if (!queuedInstantiation && R->isUsed(false)) { |
| 1256 | if (MemberSpecializationInfo *MSInfo |
| 1257 | = Function->getMemberSpecializationInfo()) { |
| 1258 | if (MSInfo->getPointOfInstantiation().isInvalid()) { |
| 1259 | SourceLocation Loc = R->getLocation(); // FIXME |
| 1260 | MSInfo->setPointOfInstantiation(Loc); |
| 1261 | SemaRef.PendingLocalImplicitInstantiations.push_back( |
| 1262 | std::make_pair(Function, Loc)); |
| 1263 | queuedInstantiation = true; |
| 1264 | } |
| 1265 | } |
| 1266 | } |
| 1267 | break; |
| 1268 | default: |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1269 | if (const FunctionDecl *RPattern |
Gabor Greif | 6a557d8 | 2010-08-28 15:46:56 +0000 | [diff] [blame] | 1270 | = R->getTemplateInstantiationPattern()) |
Sean Hunt | 10620eb | 2011-05-06 20:44:56 +0000 | [diff] [blame] | 1271 | if (RPattern->isDefined(RPattern)) { |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1272 | SemaRef.Diag(Function->getLocation(), diag::err_redefinition) |
| 1273 | << Function->getDeclName(); |
Gabor Greif | 6a557d8 | 2010-08-28 15:46:56 +0000 | [diff] [blame] | 1274 | SemaRef.Diag(R->getLocation(), diag::note_previous_definition); |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1275 | Function->setInvalidDecl(); |
| 1276 | break; |
| 1277 | } |
| 1278 | } |
| 1279 | } |
| 1280 | } |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1281 | } |
| 1282 | |
John McCall | 76d3264 | 2010-04-24 01:30:58 +0000 | [diff] [blame] | 1283 | if (Function->isOverloadedOperator() && !DC->isRecord() && |
| 1284 | PrincipalDecl->isInIdentifierNamespace(Decl::IDNS_Ordinary)) |
| 1285 | PrincipalDecl->setNonMemberOperator(); |
| 1286 | |
Sean Hunt | eb88ae5 | 2011-05-23 21:07:59 +0000 | [diff] [blame] | 1287 | assert(!D->isDefaulted() && "only methods should be defaulted"); |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 1288 | return Function; |
| 1289 | } |
| 1290 | |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1291 | Decl * |
| 1292 | TemplateDeclInstantiator::VisitCXXMethodDecl(CXXMethodDecl *D, |
| 1293 | TemplateParameterList *TemplateParams) { |
Douglas Gregor | 6b90686 | 2009-08-21 00:16:32 +0000 | [diff] [blame] | 1294 | FunctionTemplateDecl *FunctionTemplate = D->getDescribedFunctionTemplate(); |
| 1295 | void *InsertPos = 0; |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1296 | if (FunctionTemplate && !TemplateParams) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1297 | // We are creating a function template specialization from a function |
| 1298 | // template. Check whether there is already a function template |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1299 | // specialization for this particular set of template arguments. |
Douglas Gregor | 24bae92 | 2010-07-08 18:37:38 +0000 | [diff] [blame] | 1300 | std::pair<const TemplateArgument *, unsigned> Innermost |
| 1301 | = TemplateArgs.getInnermost(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1302 | |
Argyrios Kyrtzidis | 2c853e4 | 2010-07-20 13:59:58 +0000 | [diff] [blame] | 1303 | FunctionDecl *SpecFunc |
| 1304 | = FunctionTemplate->findSpecialization(Innermost.first, Innermost.second, |
| 1305 | InsertPos); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1306 | |
Douglas Gregor | 6b90686 | 2009-08-21 00:16:32 +0000 | [diff] [blame] | 1307 | // If we already have a function template specialization, return it. |
Argyrios Kyrtzidis | 2c853e4 | 2010-07-20 13:59:58 +0000 | [diff] [blame] | 1308 | if (SpecFunc) |
| 1309 | return SpecFunc; |
Douglas Gregor | 6b90686 | 2009-08-21 00:16:32 +0000 | [diff] [blame] | 1310 | } |
| 1311 | |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1312 | bool isFriend; |
| 1313 | if (FunctionTemplate) |
| 1314 | isFriend = (FunctionTemplate->getFriendObjectKind() != Decl::FOK_None); |
| 1315 | else |
| 1316 | isFriend = (D->getFriendObjectKind() != Decl::FOK_None); |
| 1317 | |
Douglas Gregor | 79c2278 | 2010-01-16 20:21:20 +0000 | [diff] [blame] | 1318 | bool MergeWithParentScope = (TemplateParams != 0) || |
| 1319 | !(isa<Decl>(Owner) && |
| 1320 | cast<Decl>(Owner)->isDefinedOutsideFunctionOrMethod()); |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 1321 | LocalInstantiationScope Scope(SemaRef, MergeWithParentScope); |
Douglas Gregor | 48dd19b | 2009-05-14 21:44:34 +0000 | [diff] [blame] | 1322 | |
John McCall | 4eab39f | 2010-10-19 02:26:41 +0000 | [diff] [blame] | 1323 | // Instantiate enclosing template arguments for friends. |
| 1324 | llvm::SmallVector<TemplateParameterList *, 4> TempParamLists; |
| 1325 | unsigned NumTempParamLists = 0; |
| 1326 | if (isFriend && (NumTempParamLists = D->getNumTemplateParameterLists())) { |
| 1327 | TempParamLists.set_size(NumTempParamLists); |
| 1328 | for (unsigned I = 0; I != NumTempParamLists; ++I) { |
| 1329 | TemplateParameterList *TempParams = D->getTemplateParameterList(I); |
| 1330 | TemplateParameterList *InstParams = SubstTemplateParams(TempParams); |
| 1331 | if (!InstParams) |
| 1332 | return NULL; |
| 1333 | TempParamLists[I] = InstParams; |
| 1334 | } |
| 1335 | } |
| 1336 | |
Douglas Gregor | 0ca20ac | 2009-05-29 18:27:38 +0000 | [diff] [blame] | 1337 | llvm::SmallVector<ParmVarDecl *, 4> Params; |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 1338 | TypeSourceInfo *TInfo = D->getTypeSourceInfo(); |
| 1339 | TInfo = SubstFunctionType(D, Params); |
| 1340 | if (!TInfo) |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1341 | return 0; |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 1342 | QualType T = TInfo->getType(); |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1343 | |
Abramo Bagnara | 723df24 | 2010-12-14 22:11:44 +0000 | [diff] [blame] | 1344 | // \brief If the type of this function, after ignoring parentheses, |
| 1345 | // is not *directly* a function type, then we're instantiating a function |
| 1346 | // that was declared via a typedef, e.g., |
Douglas Gregor | 5f970ee | 2010-05-04 18:18:31 +0000 | [diff] [blame] | 1347 | // |
| 1348 | // typedef int functype(int, int); |
| 1349 | // functype func; |
| 1350 | // |
| 1351 | // In this case, we'll just go instantiate the ParmVarDecls that we |
| 1352 | // synthesized in the method declaration. |
Abramo Bagnara | 723df24 | 2010-12-14 22:11:44 +0000 | [diff] [blame] | 1353 | if (!isa<FunctionProtoType>(T.IgnoreParens())) { |
Douglas Gregor | 5f970ee | 2010-05-04 18:18:31 +0000 | [diff] [blame] | 1354 | assert(!Params.size() && "Instantiating type could not yield parameters"); |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 1355 | llvm::SmallVector<QualType, 4> ParamTypes; |
| 1356 | if (SemaRef.SubstParmTypes(D->getLocation(), D->param_begin(), |
| 1357 | D->getNumParams(), TemplateArgs, ParamTypes, |
| 1358 | &Params)) |
| 1359 | return 0; |
Douglas Gregor | 5f970ee | 2010-05-04 18:18:31 +0000 | [diff] [blame] | 1360 | } |
| 1361 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1362 | NestedNameSpecifierLoc QualifierLoc = D->getQualifierLoc(); |
| 1363 | if (QualifierLoc) { |
| 1364 | QualifierLoc = SemaRef.SubstNestedNameSpecifierLoc(QualifierLoc, |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1365 | TemplateArgs); |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1366 | if (!QualifierLoc) |
| 1367 | return 0; |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1368 | } |
| 1369 | |
| 1370 | DeclContext *DC = Owner; |
| 1371 | if (isFriend) { |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1372 | if (QualifierLoc) { |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1373 | CXXScopeSpec SS; |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1374 | SS.Adopt(QualifierLoc); |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1375 | DC = SemaRef.computeDeclContext(SS); |
John McCall | c54d688 | 2010-10-19 05:01:53 +0000 | [diff] [blame] | 1376 | |
| 1377 | if (DC && SemaRef.RequireCompleteDeclContext(SS, DC)) |
| 1378 | return 0; |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1379 | } else { |
| 1380 | DC = SemaRef.FindInstantiatedContext(D->getLocation(), |
| 1381 | D->getDeclContext(), |
| 1382 | TemplateArgs); |
| 1383 | } |
| 1384 | if (!DC) return 0; |
| 1385 | } |
| 1386 | |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1387 | // Build the instantiated method declaration. |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1388 | CXXRecordDecl *Record = cast<CXXRecordDecl>(DC); |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1389 | CXXMethodDecl *Method = 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1390 | |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1391 | SourceLocation StartLoc = D->getInnerLocStart(); |
Abramo Bagnara | 2577743 | 2010-08-11 22:01:17 +0000 | [diff] [blame] | 1392 | DeclarationNameInfo NameInfo |
| 1393 | = SemaRef.SubstDeclarationNameInfo(D->getNameInfo(), TemplateArgs); |
Douglas Gregor | 17e32f3 | 2009-08-21 22:43:28 +0000 | [diff] [blame] | 1394 | if (CXXConstructorDecl *Constructor = dyn_cast<CXXConstructorDecl>(D)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1395 | Method = CXXConstructorDecl::Create(SemaRef.Context, Record, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1396 | StartLoc, NameInfo, T, TInfo, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1397 | Constructor->isExplicit(), |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 1398 | Constructor->isInlineSpecified(), |
Sean Hunt | 5f802e5 | 2011-05-06 00:11:07 +0000 | [diff] [blame] | 1399 | false); |
Douglas Gregor | 17e32f3 | 2009-08-21 22:43:28 +0000 | [diff] [blame] | 1400 | } else if (CXXDestructorDecl *Destructor = dyn_cast<CXXDestructorDecl>(D)) { |
Douglas Gregor | 17e32f3 | 2009-08-21 22:43:28 +0000 | [diff] [blame] | 1401 | Method = CXXDestructorDecl::Create(SemaRef.Context, Record, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1402 | StartLoc, NameInfo, T, TInfo, |
Abramo Bagnara | 2577743 | 2010-08-11 22:01:17 +0000 | [diff] [blame] | 1403 | Destructor->isInlineSpecified(), |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 1404 | false); |
Douglas Gregor | 65ec1fd | 2009-08-21 23:19:43 +0000 | [diff] [blame] | 1405 | } else if (CXXConversionDecl *Conversion = dyn_cast<CXXConversionDecl>(D)) { |
Douglas Gregor | 65ec1fd | 2009-08-21 23:19:43 +0000 | [diff] [blame] | 1406 | Method = CXXConversionDecl::Create(SemaRef.Context, Record, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1407 | StartLoc, NameInfo, T, TInfo, |
Douglas Gregor | 0130f3c | 2009-10-27 21:01:01 +0000 | [diff] [blame] | 1408 | Conversion->isInlineSpecified(), |
Douglas Gregor | f525160 | 2011-03-08 17:10:18 +0000 | [diff] [blame] | 1409 | Conversion->isExplicit(), |
| 1410 | Conversion->getLocEnd()); |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1411 | } else { |
Abramo Bagnara | 2577743 | 2010-08-11 22:01:17 +0000 | [diff] [blame] | 1412 | Method = CXXMethodDecl::Create(SemaRef.Context, Record, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1413 | StartLoc, NameInfo, T, TInfo, |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 1414 | D->isStatic(), |
| 1415 | D->getStorageClassAsWritten(), |
Douglas Gregor | f525160 | 2011-03-08 17:10:18 +0000 | [diff] [blame] | 1416 | D->isInlineSpecified(), |
| 1417 | D->getLocEnd()); |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1418 | } |
Douglas Gregor | 6b90686 | 2009-08-21 00:16:32 +0000 | [diff] [blame] | 1419 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1420 | if (QualifierLoc) |
| 1421 | Method->setQualifierInfo(QualifierLoc); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 1422 | |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1423 | if (TemplateParams) { |
| 1424 | // Our resulting instantiation is actually a function template, since we |
| 1425 | // are substituting only the outer template parameters. For example, given |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1426 | // |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1427 | // template<typename T> |
| 1428 | // struct X { |
| 1429 | // template<typename U> void f(T, U); |
| 1430 | // }; |
| 1431 | // |
| 1432 | // X<int> x; |
| 1433 | // |
| 1434 | // We are instantiating the member template "f" within X<int>, which means |
| 1435 | // substituting int for T, but leaving "f" as a member function template. |
| 1436 | // Build the function template itself. |
| 1437 | FunctionTemplate = FunctionTemplateDecl::Create(SemaRef.Context, Record, |
| 1438 | Method->getLocation(), |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1439 | Method->getDeclName(), |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1440 | TemplateParams, Method); |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1441 | if (isFriend) { |
| 1442 | FunctionTemplate->setLexicalDeclContext(Owner); |
| 1443 | FunctionTemplate->setObjectOfFriendDecl(true); |
| 1444 | } else if (D->isOutOfLine()) |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1445 | FunctionTemplate->setLexicalDeclContext(D->getLexicalDeclContext()); |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1446 | Method->setDescribedFunctionTemplate(FunctionTemplate); |
Douglas Gregor | 66724ea | 2009-11-14 01:20:54 +0000 | [diff] [blame] | 1447 | } else if (FunctionTemplate) { |
| 1448 | // Record this function template specialization. |
Douglas Gregor | 24bae92 | 2010-07-08 18:37:38 +0000 | [diff] [blame] | 1449 | std::pair<const TemplateArgument *, unsigned> Innermost |
| 1450 | = TemplateArgs.getInnermost(); |
Douglas Gregor | 838db38 | 2010-02-11 01:19:42 +0000 | [diff] [blame] | 1451 | Method->setFunctionTemplateSpecialization(FunctionTemplate, |
Douglas Gregor | 910f800 | 2010-11-07 23:05:16 +0000 | [diff] [blame] | 1452 | TemplateArgumentList::CreateCopy(SemaRef.Context, |
| 1453 | Innermost.first, |
| 1454 | Innermost.second), |
Douglas Gregor | 66724ea | 2009-11-14 01:20:54 +0000 | [diff] [blame] | 1455 | InsertPos); |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1456 | } else if (!isFriend) { |
Douglas Gregor | 66724ea | 2009-11-14 01:20:54 +0000 | [diff] [blame] | 1457 | // Record that this is an instantiation of a member function. |
Douglas Gregor | 2db3232 | 2009-10-07 23:56:10 +0000 | [diff] [blame] | 1458 | Method->setInstantiationOfMemberFunction(D, TSK_ImplicitInstantiation); |
Douglas Gregor | 66724ea | 2009-11-14 01:20:54 +0000 | [diff] [blame] | 1459 | } |
| 1460 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1461 | // If we are instantiating a member function defined |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 1462 | // out-of-line, the instantiation will have the same lexical |
| 1463 | // context (which will be a namespace scope) as the template. |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1464 | if (isFriend) { |
John McCall | 4eab39f | 2010-10-19 02:26:41 +0000 | [diff] [blame] | 1465 | if (NumTempParamLists) |
| 1466 | Method->setTemplateParameterListsInfo(SemaRef.Context, |
| 1467 | NumTempParamLists, |
| 1468 | TempParamLists.data()); |
| 1469 | |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1470 | Method->setLexicalDeclContext(Owner); |
| 1471 | Method->setObjectOfFriendDecl(true); |
| 1472 | } else if (D->isOutOfLine()) |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 1473 | Method->setLexicalDeclContext(D->getLexicalDeclContext()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1474 | |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 1475 | // Attach the parameters |
| 1476 | for (unsigned P = 0; P < Params.size(); ++P) |
| 1477 | Params[P]->setOwningFunction(Method); |
Douglas Gregor | 838db38 | 2010-02-11 01:19:42 +0000 | [diff] [blame] | 1478 | Method->setParams(Params.data(), Params.size()); |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 1479 | |
| 1480 | if (InitMethodInstantiation(Method, D)) |
| 1481 | Method->setInvalidDecl(); |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1482 | |
Abramo Bagnara | 2577743 | 2010-08-11 22:01:17 +0000 | [diff] [blame] | 1483 | LookupResult Previous(SemaRef, NameInfo, Sema::LookupOrdinaryName, |
| 1484 | Sema::ForRedeclaration); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1485 | |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1486 | if (!FunctionTemplate || TemplateParams || isFriend) { |
| 1487 | SemaRef.LookupQualifiedName(Previous, Record); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1488 | |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1489 | // In C++, the previous declaration we find might be a tag type |
| 1490 | // (class or enum). In this case, the new declaration will hide the |
| 1491 | // tag type. Note that this does does not apply if we're declaring a |
| 1492 | // typedef (C++ [dcl.typedef]p4). |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 1493 | if (Previous.isSingleTagDecl()) |
| 1494 | Previous.clear(); |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1495 | } |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1496 | |
Douglas Gregor | 65ec1fd | 2009-08-21 23:19:43 +0000 | [diff] [blame] | 1497 | bool Redeclaration = false; |
Peter Collingbourne | c80e811 | 2011-01-21 02:08:54 +0000 | [diff] [blame] | 1498 | SemaRef.CheckFunctionDeclaration(0, Method, Previous, false, Redeclaration); |
Douglas Gregor | 65ec1fd | 2009-08-21 23:19:43 +0000 | [diff] [blame] | 1499 | |
Douglas Gregor | 4ba3136 | 2009-12-01 17:24:26 +0000 | [diff] [blame] | 1500 | if (D->isPure()) |
| 1501 | SemaRef.CheckPureMethod(Method, SourceRange()); |
| 1502 | |
John McCall | 46460a6 | 2010-01-20 21:53:11 +0000 | [diff] [blame] | 1503 | Method->setAccess(D->getAccess()); |
| 1504 | |
Anders Carlsson | 9eefa22 | 2011-01-20 06:52:44 +0000 | [diff] [blame] | 1505 | SemaRef.CheckOverrideControl(Method); |
| 1506 | |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1507 | if (FunctionTemplate) { |
| 1508 | // If there's a function template, let our caller handle it. |
| 1509 | } else if (Method->isInvalidDecl() && !Previous.empty()) { |
| 1510 | // Don't hide a (potentially) valid declaration with an invalid one. |
| 1511 | } else { |
| 1512 | NamedDecl *DeclToAdd = (TemplateParams |
| 1513 | ? cast<NamedDecl>(FunctionTemplate) |
| 1514 | : Method); |
| 1515 | if (isFriend) |
| 1516 | Record->makeDeclVisibleInContext(DeclToAdd); |
| 1517 | else |
| 1518 | Owner->addDecl(DeclToAdd); |
| 1519 | } |
Sean Hunt | eb88ae5 | 2011-05-23 21:07:59 +0000 | [diff] [blame] | 1520 | |
| 1521 | if (D->isExplicitlyDefaulted()) { |
| 1522 | SemaRef.SetDeclDefaulted(Method, Method->getLocation()); |
| 1523 | } else { |
| 1524 | assert(!D->isDefaulted() && |
| 1525 | "should not implicitly default uninstantiated function"); |
| 1526 | } |
| 1527 | |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1528 | return Method; |
| 1529 | } |
| 1530 | |
Douglas Gregor | 615c5d4 | 2009-03-24 16:43:20 +0000 | [diff] [blame] | 1531 | Decl *TemplateDeclInstantiator::VisitCXXConstructorDecl(CXXConstructorDecl *D) { |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1532 | return VisitCXXMethodDecl(D); |
Douglas Gregor | 615c5d4 | 2009-03-24 16:43:20 +0000 | [diff] [blame] | 1533 | } |
| 1534 | |
Douglas Gregor | 03b2b07 | 2009-03-24 00:15:49 +0000 | [diff] [blame] | 1535 | Decl *TemplateDeclInstantiator::VisitCXXDestructorDecl(CXXDestructorDecl *D) { |
Douglas Gregor | 17e32f3 | 2009-08-21 22:43:28 +0000 | [diff] [blame] | 1536 | return VisitCXXMethodDecl(D); |
Douglas Gregor | 03b2b07 | 2009-03-24 00:15:49 +0000 | [diff] [blame] | 1537 | } |
| 1538 | |
Douglas Gregor | bb969ed | 2009-03-25 00:34:44 +0000 | [diff] [blame] | 1539 | Decl *TemplateDeclInstantiator::VisitCXXConversionDecl(CXXConversionDecl *D) { |
Douglas Gregor | 65ec1fd | 2009-08-21 23:19:43 +0000 | [diff] [blame] | 1540 | return VisitCXXMethodDecl(D); |
Douglas Gregor | bb969ed | 2009-03-25 00:34:44 +0000 | [diff] [blame] | 1541 | } |
| 1542 | |
Douglas Gregor | 6477b69 | 2009-03-25 15:04:13 +0000 | [diff] [blame] | 1543 | ParmVarDecl *TemplateDeclInstantiator::VisitParmVarDecl(ParmVarDecl *D) { |
John McCall | fb44de9 | 2011-05-01 22:35:37 +0000 | [diff] [blame] | 1544 | return SemaRef.SubstParmVarDecl(D, TemplateArgs, /*indexAdjustment*/ 0, |
| 1545 | llvm::Optional<unsigned>()); |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1546 | } |
| 1547 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1548 | Decl *TemplateDeclInstantiator::VisitTemplateTypeParmDecl( |
| 1549 | TemplateTypeParmDecl *D) { |
| 1550 | // TODO: don't always clone when decls are refcounted. |
Chandler Carruth | 4fb86f8 | 2011-05-01 00:51:33 +0000 | [diff] [blame] | 1551 | assert(D->getTypeForDecl()->isTemplateTypeParmType()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1552 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1553 | TemplateTypeParmDecl *Inst = |
Abramo Bagnara | 344577e | 2011-03-06 15:48:19 +0000 | [diff] [blame] | 1554 | TemplateTypeParmDecl::Create(SemaRef.Context, Owner, |
| 1555 | D->getLocStart(), D->getLocation(), |
Chandler Carruth | 4fb86f8 | 2011-05-01 00:51:33 +0000 | [diff] [blame] | 1556 | D->getDepth() - TemplateArgs.getNumLevels(), |
| 1557 | D->getIndex(), D->getIdentifier(), |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1558 | D->wasDeclaredWithTypename(), |
| 1559 | D->isParameterPack()); |
Douglas Gregor | 9a299e0 | 2011-03-04 17:52:15 +0000 | [diff] [blame] | 1560 | Inst->setAccess(AS_public); |
| 1561 | |
Douglas Gregor | 0f8716b | 2009-11-09 19:17:50 +0000 | [diff] [blame] | 1562 | if (D->hasDefaultArgument()) |
| 1563 | Inst->setDefaultArgument(D->getDefaultArgumentInfo(), false); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1564 | |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 1565 | // Introduce this template parameter's instantiation into the instantiation |
| 1566 | // scope. |
| 1567 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Inst); |
| 1568 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1569 | return Inst; |
| 1570 | } |
| 1571 | |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1572 | Decl *TemplateDeclInstantiator::VisitNonTypeTemplateParmDecl( |
| 1573 | NonTypeTemplateParmDecl *D) { |
| 1574 | // Substitute into the type of the non-type template parameter. |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1575 | TypeLoc TL = D->getTypeSourceInfo()->getTypeLoc(); |
| 1576 | llvm::SmallVector<TypeSourceInfo *, 4> ExpandedParameterPackTypesAsWritten; |
| 1577 | llvm::SmallVector<QualType, 4> ExpandedParameterPackTypes; |
| 1578 | bool IsExpandedParameterPack = false; |
| 1579 | TypeSourceInfo *DI; |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1580 | QualType T; |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1581 | bool Invalid = false; |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1582 | |
| 1583 | if (D->isExpandedParameterPack()) { |
| 1584 | // The non-type template parameter pack is an already-expanded pack |
| 1585 | // expansion of types. Substitute into each of the expanded types. |
| 1586 | ExpandedParameterPackTypes.reserve(D->getNumExpansionTypes()); |
| 1587 | ExpandedParameterPackTypesAsWritten.reserve(D->getNumExpansionTypes()); |
| 1588 | for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) { |
| 1589 | TypeSourceInfo *NewDI =SemaRef.SubstType(D->getExpansionTypeSourceInfo(I), |
| 1590 | TemplateArgs, |
| 1591 | D->getLocation(), |
| 1592 | D->getDeclName()); |
| 1593 | if (!NewDI) |
| 1594 | return 0; |
| 1595 | |
| 1596 | ExpandedParameterPackTypesAsWritten.push_back(NewDI); |
| 1597 | QualType NewT =SemaRef.CheckNonTypeTemplateParameterType(NewDI->getType(), |
| 1598 | D->getLocation()); |
| 1599 | if (NewT.isNull()) |
| 1600 | return 0; |
| 1601 | ExpandedParameterPackTypes.push_back(NewT); |
| 1602 | } |
| 1603 | |
| 1604 | IsExpandedParameterPack = true; |
| 1605 | DI = D->getTypeSourceInfo(); |
| 1606 | T = DI->getType(); |
| 1607 | } else if (isa<PackExpansionTypeLoc>(TL)) { |
| 1608 | // The non-type template parameter pack's type is a pack expansion of types. |
| 1609 | // Determine whether we need to expand this parameter pack into separate |
| 1610 | // types. |
| 1611 | PackExpansionTypeLoc Expansion = cast<PackExpansionTypeLoc>(TL); |
| 1612 | TypeLoc Pattern = Expansion.getPatternLoc(); |
| 1613 | llvm::SmallVector<UnexpandedParameterPack, 2> Unexpanded; |
| 1614 | SemaRef.collectUnexpandedParameterPacks(Pattern, Unexpanded); |
| 1615 | |
| 1616 | // Determine whether the set of unexpanded parameter packs can and should |
| 1617 | // be expanded. |
| 1618 | bool Expand = true; |
| 1619 | bool RetainExpansion = false; |
| 1620 | llvm::Optional<unsigned> OrigNumExpansions |
| 1621 | = Expansion.getTypePtr()->getNumExpansions(); |
| 1622 | llvm::Optional<unsigned> NumExpansions = OrigNumExpansions; |
| 1623 | if (SemaRef.CheckParameterPacksForExpansion(Expansion.getEllipsisLoc(), |
| 1624 | Pattern.getSourceRange(), |
| 1625 | Unexpanded.data(), |
| 1626 | Unexpanded.size(), |
| 1627 | TemplateArgs, |
| 1628 | Expand, RetainExpansion, |
| 1629 | NumExpansions)) |
| 1630 | return 0; |
| 1631 | |
| 1632 | if (Expand) { |
| 1633 | for (unsigned I = 0; I != *NumExpansions; ++I) { |
| 1634 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, I); |
| 1635 | TypeSourceInfo *NewDI = SemaRef.SubstType(Pattern, TemplateArgs, |
| 1636 | D->getLocation(), |
| 1637 | D->getDeclName()); |
| 1638 | if (!NewDI) |
| 1639 | return 0; |
| 1640 | |
| 1641 | ExpandedParameterPackTypesAsWritten.push_back(NewDI); |
| 1642 | QualType NewT = SemaRef.CheckNonTypeTemplateParameterType( |
| 1643 | NewDI->getType(), |
| 1644 | D->getLocation()); |
| 1645 | if (NewT.isNull()) |
| 1646 | return 0; |
| 1647 | ExpandedParameterPackTypes.push_back(NewT); |
| 1648 | } |
| 1649 | |
| 1650 | // Note that we have an expanded parameter pack. The "type" of this |
| 1651 | // expanded parameter pack is the original expansion type, but callers |
| 1652 | // will end up using the expanded parameter pack types for type-checking. |
| 1653 | IsExpandedParameterPack = true; |
| 1654 | DI = D->getTypeSourceInfo(); |
| 1655 | T = DI->getType(); |
| 1656 | } else { |
| 1657 | // We cannot fully expand the pack expansion now, so substitute into the |
| 1658 | // pattern and create a new pack expansion type. |
| 1659 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, -1); |
| 1660 | TypeSourceInfo *NewPattern = SemaRef.SubstType(Pattern, TemplateArgs, |
| 1661 | D->getLocation(), |
| 1662 | D->getDeclName()); |
| 1663 | if (!NewPattern) |
| 1664 | return 0; |
| 1665 | |
| 1666 | DI = SemaRef.CheckPackExpansion(NewPattern, Expansion.getEllipsisLoc(), |
| 1667 | NumExpansions); |
| 1668 | if (!DI) |
| 1669 | return 0; |
| 1670 | |
| 1671 | T = DI->getType(); |
| 1672 | } |
| 1673 | } else { |
| 1674 | // Simple case: substitution into a parameter that is not a parameter pack. |
| 1675 | DI = SemaRef.SubstType(D->getTypeSourceInfo(), TemplateArgs, |
| 1676 | D->getLocation(), D->getDeclName()); |
| 1677 | if (!DI) |
| 1678 | return 0; |
| 1679 | |
| 1680 | // Check that this type is acceptable for a non-type template parameter. |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1681 | T = SemaRef.CheckNonTypeTemplateParameterType(DI->getType(), |
| 1682 | D->getLocation()); |
| 1683 | if (T.isNull()) { |
| 1684 | T = SemaRef.Context.IntTy; |
| 1685 | Invalid = true; |
| 1686 | } |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1687 | } |
| 1688 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1689 | NonTypeTemplateParmDecl *Param; |
| 1690 | if (IsExpandedParameterPack) |
| 1691 | Param = NonTypeTemplateParmDecl::Create(SemaRef.Context, Owner, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1692 | D->getInnerLocStart(), |
| 1693 | D->getLocation(), |
Douglas Gregor | 71b87e4 | 2010-08-30 23:23:59 +0000 | [diff] [blame] | 1694 | D->getDepth() - TemplateArgs.getNumLevels(), |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1695 | D->getPosition(), |
| 1696 | D->getIdentifier(), T, |
| 1697 | DI, |
| 1698 | ExpandedParameterPackTypes.data(), |
| 1699 | ExpandedParameterPackTypes.size(), |
| 1700 | ExpandedParameterPackTypesAsWritten.data()); |
| 1701 | else |
| 1702 | Param = NonTypeTemplateParmDecl::Create(SemaRef.Context, Owner, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1703 | D->getInnerLocStart(), |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1704 | D->getLocation(), |
| 1705 | D->getDepth() - TemplateArgs.getNumLevels(), |
| 1706 | D->getPosition(), |
| 1707 | D->getIdentifier(), T, |
| 1708 | D->isParameterPack(), DI); |
| 1709 | |
Douglas Gregor | 9a299e0 | 2011-03-04 17:52:15 +0000 | [diff] [blame] | 1710 | Param->setAccess(AS_public); |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1711 | if (Invalid) |
| 1712 | Param->setInvalidDecl(); |
| 1713 | |
Abramo Bagnara | d92f7a2 | 2010-06-09 09:26:05 +0000 | [diff] [blame] | 1714 | Param->setDefaultArgument(D->getDefaultArgument(), false); |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 1715 | |
| 1716 | // Introduce this template parameter's instantiation into the instantiation |
| 1717 | // scope. |
| 1718 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Param); |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1719 | return Param; |
| 1720 | } |
| 1721 | |
Anders Carlsson | 0dde18e | 2009-08-28 15:18:15 +0000 | [diff] [blame] | 1722 | Decl * |
Douglas Gregor | 9106ef7 | 2009-11-11 16:58:32 +0000 | [diff] [blame] | 1723 | TemplateDeclInstantiator::VisitTemplateTemplateParmDecl( |
| 1724 | TemplateTemplateParmDecl *D) { |
| 1725 | // Instantiate the template parameter list of the template template parameter. |
| 1726 | TemplateParameterList *TempParams = D->getTemplateParameters(); |
| 1727 | TemplateParameterList *InstParams; |
| 1728 | { |
| 1729 | // Perform the actual substitution of template parameters within a new, |
| 1730 | // local instantiation scope. |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 1731 | LocalInstantiationScope Scope(SemaRef); |
Douglas Gregor | 9106ef7 | 2009-11-11 16:58:32 +0000 | [diff] [blame] | 1732 | InstParams = SubstTemplateParams(TempParams); |
| 1733 | if (!InstParams) |
| 1734 | return NULL; |
| 1735 | } |
| 1736 | |
| 1737 | // Build the template template parameter. |
| 1738 | TemplateTemplateParmDecl *Param |
| 1739 | = TemplateTemplateParmDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
Douglas Gregor | 71b87e4 | 2010-08-30 23:23:59 +0000 | [diff] [blame] | 1740 | D->getDepth() - TemplateArgs.getNumLevels(), |
Douglas Gregor | 61c4d28 | 2011-01-05 15:48:55 +0000 | [diff] [blame] | 1741 | D->getPosition(), D->isParameterPack(), |
| 1742 | D->getIdentifier(), InstParams); |
Abramo Bagnara | d92f7a2 | 2010-06-09 09:26:05 +0000 | [diff] [blame] | 1743 | Param->setDefaultArgument(D->getDefaultArgument(), false); |
Douglas Gregor | 9a299e0 | 2011-03-04 17:52:15 +0000 | [diff] [blame] | 1744 | Param->setAccess(AS_public); |
Douglas Gregor | 4469e8a | 2010-05-19 17:02:24 +0000 | [diff] [blame] | 1745 | |
Douglas Gregor | 9106ef7 | 2009-11-11 16:58:32 +0000 | [diff] [blame] | 1746 | // Introduce this template parameter's instantiation into the instantiation |
| 1747 | // scope. |
| 1748 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Param); |
| 1749 | |
| 1750 | return Param; |
| 1751 | } |
| 1752 | |
Douglas Gregor | 48c32a7 | 2009-11-17 06:07:40 +0000 | [diff] [blame] | 1753 | Decl *TemplateDeclInstantiator::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { |
Douglas Gregor | db99241 | 2011-02-25 16:33:46 +0000 | [diff] [blame] | 1754 | // Using directives are never dependent (and never contain any types or |
| 1755 | // expressions), so they require no explicit instantiation work. |
Douglas Gregor | 48c32a7 | 2009-11-17 06:07:40 +0000 | [diff] [blame] | 1756 | |
| 1757 | UsingDirectiveDecl *Inst |
| 1758 | = UsingDirectiveDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
| 1759 | D->getNamespaceKeyLocation(), |
Douglas Gregor | db99241 | 2011-02-25 16:33:46 +0000 | [diff] [blame] | 1760 | D->getQualifierLoc(), |
Douglas Gregor | 48c32a7 | 2009-11-17 06:07:40 +0000 | [diff] [blame] | 1761 | D->getIdentLocation(), |
| 1762 | D->getNominatedNamespace(), |
| 1763 | D->getCommonAncestor()); |
| 1764 | Owner->addDecl(Inst); |
| 1765 | return Inst; |
| 1766 | } |
| 1767 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1768 | Decl *TemplateDeclInstantiator::VisitUsingDecl(UsingDecl *D) { |
Douglas Gregor | 1b39820 | 2010-09-29 17:58:28 +0000 | [diff] [blame] | 1769 | |
| 1770 | // The nested name specifier may be dependent, for example |
| 1771 | // template <typename T> struct t { |
| 1772 | // struct s1 { T f1(); }; |
| 1773 | // struct s2 : s1 { using s1::f1; }; |
| 1774 | // }; |
| 1775 | // template struct t<int>; |
| 1776 | // Here, in using s1::f1, s1 refers to t<T>::s1; |
| 1777 | // we need to substitute for t<int>::s1. |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 1778 | NestedNameSpecifierLoc QualifierLoc |
| 1779 | = SemaRef.SubstNestedNameSpecifierLoc(D->getQualifierLoc(), |
| 1780 | TemplateArgs); |
| 1781 | if (!QualifierLoc) |
Douglas Gregor | dc35571 | 2011-02-25 00:36:19 +0000 | [diff] [blame] | 1782 | return 0; |
Douglas Gregor | 1b39820 | 2010-09-29 17:58:28 +0000 | [diff] [blame] | 1783 | |
| 1784 | // The name info is non-dependent, so no transformation |
| 1785 | // is required. |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 1786 | DeclarationNameInfo NameInfo = D->getNameInfo(); |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1787 | |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1788 | // We only need to do redeclaration lookups if we're in a class |
| 1789 | // scope (in fact, it's not really even possible in non-class |
| 1790 | // scopes). |
| 1791 | bool CheckRedeclaration = Owner->isRecord(); |
| 1792 | |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 1793 | LookupResult Prev(SemaRef, NameInfo, Sema::LookupUsingDeclName, |
| 1794 | Sema::ForRedeclaration); |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1795 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1796 | UsingDecl *NewUD = UsingDecl::Create(SemaRef.Context, Owner, |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1797 | D->getUsingLocation(), |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 1798 | QualifierLoc, |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 1799 | NameInfo, |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1800 | D->isTypeName()); |
| 1801 | |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 1802 | CXXScopeSpec SS; |
| 1803 | SS.Adopt(QualifierLoc); |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1804 | if (CheckRedeclaration) { |
| 1805 | Prev.setHideTags(false); |
| 1806 | SemaRef.LookupQualifiedName(Prev, Owner); |
| 1807 | |
| 1808 | // Check for invalid redeclarations. |
| 1809 | if (SemaRef.CheckUsingDeclRedeclaration(D->getUsingLocation(), |
| 1810 | D->isTypeName(), SS, |
| 1811 | D->getLocation(), Prev)) |
| 1812 | NewUD->setInvalidDecl(); |
| 1813 | |
| 1814 | } |
| 1815 | |
| 1816 | if (!NewUD->isInvalidDecl() && |
| 1817 | SemaRef.CheckUsingDeclQualifier(D->getUsingLocation(), SS, |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1818 | D->getLocation())) |
| 1819 | NewUD->setInvalidDecl(); |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1820 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1821 | SemaRef.Context.setInstantiatedFromUsingDecl(NewUD, D); |
| 1822 | NewUD->setAccess(D->getAccess()); |
| 1823 | Owner->addDecl(NewUD); |
| 1824 | |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1825 | // Don't process the shadow decls for an invalid decl. |
| 1826 | if (NewUD->isInvalidDecl()) |
| 1827 | return NewUD; |
| 1828 | |
John McCall | 323c310 | 2009-12-22 22:26:37 +0000 | [diff] [blame] | 1829 | bool isFunctionScope = Owner->isFunctionOrMethod(); |
| 1830 | |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1831 | // Process the shadow decls. |
| 1832 | for (UsingDecl::shadow_iterator I = D->shadow_begin(), E = D->shadow_end(); |
| 1833 | I != E; ++I) { |
| 1834 | UsingShadowDecl *Shadow = *I; |
| 1835 | NamedDecl *InstTarget = |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 1836 | cast_or_null<NamedDecl>(SemaRef.FindInstantiatedDecl( |
| 1837 | Shadow->getLocation(), |
| 1838 | Shadow->getTargetDecl(), |
| 1839 | TemplateArgs)); |
| 1840 | if (!InstTarget) |
| 1841 | return 0; |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1842 | |
| 1843 | if (CheckRedeclaration && |
| 1844 | SemaRef.CheckUsingShadowDecl(NewUD, InstTarget, Prev)) |
| 1845 | continue; |
| 1846 | |
| 1847 | UsingShadowDecl *InstShadow |
| 1848 | = SemaRef.BuildUsingShadowDecl(/*Scope*/ 0, NewUD, InstTarget); |
| 1849 | SemaRef.Context.setInstantiatedFromUsingShadowDecl(InstShadow, Shadow); |
John McCall | 323c310 | 2009-12-22 22:26:37 +0000 | [diff] [blame] | 1850 | |
| 1851 | if (isFunctionScope) |
| 1852 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(Shadow, InstShadow); |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1853 | } |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1854 | |
| 1855 | return NewUD; |
| 1856 | } |
| 1857 | |
| 1858 | Decl *TemplateDeclInstantiator::VisitUsingShadowDecl(UsingShadowDecl *D) { |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1859 | // Ignore these; we handle them in bulk when processing the UsingDecl. |
| 1860 | return 0; |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1861 | } |
| 1862 | |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 1863 | Decl * TemplateDeclInstantiator |
| 1864 | ::VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D) { |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 1865 | NestedNameSpecifierLoc QualifierLoc |
| 1866 | = SemaRef.SubstNestedNameSpecifierLoc(D->getQualifierLoc(), |
| 1867 | TemplateArgs); |
| 1868 | if (!QualifierLoc) |
Anders Carlsson | 0dde18e | 2009-08-28 15:18:15 +0000 | [diff] [blame] | 1869 | return 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1870 | |
Anders Carlsson | 0dde18e | 2009-08-28 15:18:15 +0000 | [diff] [blame] | 1871 | CXXScopeSpec SS; |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 1872 | SS.Adopt(QualifierLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1873 | |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 1874 | // Since NameInfo refers to a typename, it cannot be a C++ special name. |
| 1875 | // Hence, no tranformation is required for it. |
| 1876 | DeclarationNameInfo NameInfo(D->getDeclName(), D->getLocation()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1877 | NamedDecl *UD = |
John McCall | 9488ea1 | 2009-11-17 05:59:44 +0000 | [diff] [blame] | 1878 | SemaRef.BuildUsingDeclaration(/*Scope*/ 0, D->getAccess(), |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 1879 | D->getUsingLoc(), SS, NameInfo, 0, |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 1880 | /*instantiation*/ true, |
| 1881 | /*typename*/ true, D->getTypenameLoc()); |
Douglas Gregor | 4469e8a | 2010-05-19 17:02:24 +0000 | [diff] [blame] | 1882 | if (UD) |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1883 | SemaRef.Context.setInstantiatedFromUsingDecl(cast<UsingDecl>(UD), D); |
| 1884 | |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 1885 | return UD; |
| 1886 | } |
| 1887 | |
| 1888 | Decl * TemplateDeclInstantiator |
| 1889 | ::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 1890 | NestedNameSpecifierLoc QualifierLoc |
| 1891 | = SemaRef.SubstNestedNameSpecifierLoc(D->getQualifierLoc(), TemplateArgs); |
| 1892 | if (!QualifierLoc) |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 1893 | return 0; |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 1894 | |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 1895 | CXXScopeSpec SS; |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 1896 | SS.Adopt(QualifierLoc); |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 1897 | |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 1898 | DeclarationNameInfo NameInfo |
| 1899 | = SemaRef.SubstDeclarationNameInfo(D->getNameInfo(), TemplateArgs); |
| 1900 | |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 1901 | NamedDecl *UD = |
| 1902 | SemaRef.BuildUsingDeclaration(/*Scope*/ 0, D->getAccess(), |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 1903 | D->getUsingLoc(), SS, NameInfo, 0, |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 1904 | /*instantiation*/ true, |
| 1905 | /*typename*/ false, SourceLocation()); |
Douglas Gregor | 4469e8a | 2010-05-19 17:02:24 +0000 | [diff] [blame] | 1906 | if (UD) |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1907 | SemaRef.Context.setInstantiatedFromUsingDecl(cast<UsingDecl>(UD), D); |
| 1908 | |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 1909 | return UD; |
Anders Carlsson | 0dde18e | 2009-08-28 15:18:15 +0000 | [diff] [blame] | 1910 | } |
| 1911 | |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 1912 | Decl *Sema::SubstDecl(Decl *D, DeclContext *Owner, |
Douglas Gregor | d6350ae | 2009-08-28 20:31:08 +0000 | [diff] [blame] | 1913 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
Douglas Gregor | 7e06390 | 2009-05-11 23:53:27 +0000 | [diff] [blame] | 1914 | TemplateDeclInstantiator Instantiator(*this, Owner, TemplateArgs); |
Douglas Gregor | 2fa9800 | 2010-02-16 19:28:15 +0000 | [diff] [blame] | 1915 | if (D->isInvalidDecl()) |
| 1916 | return 0; |
| 1917 | |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 1918 | return Instantiator.Visit(D); |
| 1919 | } |
| 1920 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1921 | /// \brief Instantiates a nested template parameter list in the current |
| 1922 | /// instantiation context. |
| 1923 | /// |
| 1924 | /// \param L The parameter list to instantiate |
| 1925 | /// |
| 1926 | /// \returns NULL if there was an error |
| 1927 | TemplateParameterList * |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 1928 | TemplateDeclInstantiator::SubstTemplateParams(TemplateParameterList *L) { |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1929 | // Get errors for all the parameters before bailing out. |
| 1930 | bool Invalid = false; |
| 1931 | |
| 1932 | unsigned N = L->size(); |
Douglas Gregor | bf4ea56 | 2009-09-15 16:23:51 +0000 | [diff] [blame] | 1933 | typedef llvm::SmallVector<NamedDecl *, 8> ParamVector; |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1934 | ParamVector Params; |
| 1935 | Params.reserve(N); |
| 1936 | for (TemplateParameterList::iterator PI = L->begin(), PE = L->end(); |
| 1937 | PI != PE; ++PI) { |
Douglas Gregor | bf4ea56 | 2009-09-15 16:23:51 +0000 | [diff] [blame] | 1938 | NamedDecl *D = cast_or_null<NamedDecl>(Visit(*PI)); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1939 | Params.push_back(D); |
Douglas Gregor | 9148c3f | 2009-11-11 19:13:48 +0000 | [diff] [blame] | 1940 | Invalid = Invalid || !D || D->isInvalidDecl(); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1941 | } |
| 1942 | |
| 1943 | // Clean up if we had an error. |
Douglas Gregor | ff331c1 | 2010-07-25 18:17:45 +0000 | [diff] [blame] | 1944 | if (Invalid) |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1945 | return NULL; |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1946 | |
| 1947 | TemplateParameterList *InstL |
| 1948 | = TemplateParameterList::Create(SemaRef.Context, L->getTemplateLoc(), |
| 1949 | L->getLAngleLoc(), &Params.front(), N, |
| 1950 | L->getRAngleLoc()); |
| 1951 | return InstL; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1952 | } |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1953 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 1954 | /// \brief Instantiate the declaration of a class template partial |
| 1955 | /// specialization. |
| 1956 | /// |
| 1957 | /// \param ClassTemplate the (instantiated) class template that is partially |
| 1958 | // specialized by the instantiation of \p PartialSpec. |
| 1959 | /// |
| 1960 | /// \param PartialSpec the (uninstantiated) class template partial |
| 1961 | /// specialization that we are instantiating. |
| 1962 | /// |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 1963 | /// \returns The instantiated partial specialization, if successful; otherwise, |
| 1964 | /// NULL to indicate an error. |
| 1965 | ClassTemplatePartialSpecializationDecl * |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 1966 | TemplateDeclInstantiator::InstantiateClassTemplatePartialSpecialization( |
| 1967 | ClassTemplateDecl *ClassTemplate, |
| 1968 | ClassTemplatePartialSpecializationDecl *PartialSpec) { |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 1969 | // Create a local instantiation scope for this class template partial |
| 1970 | // specialization, which will contain the instantiations of the template |
| 1971 | // parameters. |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 1972 | LocalInstantiationScope Scope(SemaRef); |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 1973 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 1974 | // Substitute into the template parameters of the class template partial |
| 1975 | // specialization. |
| 1976 | TemplateParameterList *TempParams = PartialSpec->getTemplateParameters(); |
| 1977 | TemplateParameterList *InstParams = SubstTemplateParams(TempParams); |
| 1978 | if (!InstParams) |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 1979 | return 0; |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 1980 | |
| 1981 | // Substitute into the template arguments of the class template partial |
| 1982 | // specialization. |
John McCall | d5532b6 | 2009-11-23 01:53:49 +0000 | [diff] [blame] | 1983 | TemplateArgumentListInfo InstTemplateArgs; // no angle locations |
Douglas Gregor | e02e262 | 2010-12-22 21:19:48 +0000 | [diff] [blame] | 1984 | if (SemaRef.Subst(PartialSpec->getTemplateArgsAsWritten(), |
| 1985 | PartialSpec->getNumTemplateArgsAsWritten(), |
| 1986 | InstTemplateArgs, TemplateArgs)) |
| 1987 | return 0; |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 1988 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 1989 | // Check that the template argument list is well-formed for this |
| 1990 | // class template. |
Douglas Gregor | 910f800 | 2010-11-07 23:05:16 +0000 | [diff] [blame] | 1991 | llvm::SmallVector<TemplateArgument, 4> Converted; |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 1992 | if (SemaRef.CheckTemplateArgumentList(ClassTemplate, |
| 1993 | PartialSpec->getLocation(), |
John McCall | d5532b6 | 2009-11-23 01:53:49 +0000 | [diff] [blame] | 1994 | InstTemplateArgs, |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 1995 | false, |
| 1996 | Converted)) |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 1997 | return 0; |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 1998 | |
| 1999 | // Figure out where to insert this class template partial specialization |
| 2000 | // in the member template's set of class template partial specializations. |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2001 | void *InsertPos = 0; |
| 2002 | ClassTemplateSpecializationDecl *PrevDecl |
Douglas Gregor | 910f800 | 2010-11-07 23:05:16 +0000 | [diff] [blame] | 2003 | = ClassTemplate->findPartialSpecialization(Converted.data(), |
| 2004 | Converted.size(), InsertPos); |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2005 | |
| 2006 | // Build the canonical type that describes the converted template |
| 2007 | // arguments of the class template partial specialization. |
| 2008 | QualType CanonType |
| 2009 | = SemaRef.Context.getTemplateSpecializationType(TemplateName(ClassTemplate), |
Douglas Gregor | 910f800 | 2010-11-07 23:05:16 +0000 | [diff] [blame] | 2010 | Converted.data(), |
| 2011 | Converted.size()); |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2012 | |
| 2013 | // Build the fully-sugared type for this class template |
| 2014 | // specialization as the user wrote in the specialization |
| 2015 | // itself. This means that we'll pretty-print the type retrieved |
| 2016 | // from the specialization's declaration the way that the user |
| 2017 | // actually wrote the specialization, rather than formatting the |
| 2018 | // name based on the "canonical" representation used to store the |
| 2019 | // template arguments in the specialization. |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 2020 | TypeSourceInfo *WrittenTy |
| 2021 | = SemaRef.Context.getTemplateSpecializationTypeInfo( |
| 2022 | TemplateName(ClassTemplate), |
| 2023 | PartialSpec->getLocation(), |
John McCall | d5532b6 | 2009-11-23 01:53:49 +0000 | [diff] [blame] | 2024 | InstTemplateArgs, |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2025 | CanonType); |
| 2026 | |
| 2027 | if (PrevDecl) { |
| 2028 | // We've already seen a partial specialization with the same template |
| 2029 | // parameters and template arguments. This can happen, for example, when |
| 2030 | // substituting the outer template arguments ends up causing two |
| 2031 | // class template partial specializations of a member class template |
| 2032 | // to have identical forms, e.g., |
| 2033 | // |
| 2034 | // template<typename T, typename U> |
| 2035 | // struct Outer { |
| 2036 | // template<typename X, typename Y> struct Inner; |
| 2037 | // template<typename Y> struct Inner<T, Y>; |
| 2038 | // template<typename Y> struct Inner<U, Y>; |
| 2039 | // }; |
| 2040 | // |
| 2041 | // Outer<int, int> outer; // error: the partial specializations of Inner |
| 2042 | // // have the same signature. |
| 2043 | SemaRef.Diag(PartialSpec->getLocation(), diag::err_partial_spec_redeclared) |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 2044 | << WrittenTy->getType(); |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2045 | SemaRef.Diag(PrevDecl->getLocation(), diag::note_prev_partial_spec_here) |
| 2046 | << SemaRef.Context.getTypeDeclType(PrevDecl); |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 2047 | return 0; |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2048 | } |
| 2049 | |
| 2050 | |
| 2051 | // Create the class template partial specialization declaration. |
| 2052 | ClassTemplatePartialSpecializationDecl *InstPartialSpec |
Douglas Gregor | 13c8577 | 2010-05-06 00:28:52 +0000 | [diff] [blame] | 2053 | = ClassTemplatePartialSpecializationDecl::Create(SemaRef.Context, |
| 2054 | PartialSpec->getTagKind(), |
| 2055 | Owner, |
Abramo Bagnara | ba877ad | 2011-03-09 14:09:51 +0000 | [diff] [blame] | 2056 | PartialSpec->getLocStart(), |
| 2057 | PartialSpec->getLocation(), |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2058 | InstParams, |
| 2059 | ClassTemplate, |
Douglas Gregor | 910f800 | 2010-11-07 23:05:16 +0000 | [diff] [blame] | 2060 | Converted.data(), |
| 2061 | Converted.size(), |
John McCall | d5532b6 | 2009-11-23 01:53:49 +0000 | [diff] [blame] | 2062 | InstTemplateArgs, |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 2063 | CanonType, |
Douglas Gregor | dc60c1e | 2010-04-30 05:56:50 +0000 | [diff] [blame] | 2064 | 0, |
Argyrios Kyrtzidis | cc0b1bc | 2010-07-20 13:59:28 +0000 | [diff] [blame] | 2065 | ClassTemplate->getNextPartialSpecSequenceNumber()); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 2066 | // Substitute the nested name specifier, if any. |
| 2067 | if (SubstQualifier(PartialSpec, InstPartialSpec)) |
| 2068 | return 0; |
| 2069 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2070 | InstPartialSpec->setInstantiatedFromMember(PartialSpec); |
Douglas Gregor | 4469e8a | 2010-05-19 17:02:24 +0000 | [diff] [blame] | 2071 | InstPartialSpec->setTypeAsWritten(WrittenTy); |
| 2072 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2073 | // Add this partial specialization to the set of class template partial |
| 2074 | // specializations. |
Argyrios Kyrtzidis | cc0b1bc | 2010-07-20 13:59:28 +0000 | [diff] [blame] | 2075 | ClassTemplate->AddPartialSpecialization(InstPartialSpec, InsertPos); |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 2076 | return InstPartialSpec; |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2077 | } |
| 2078 | |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 2079 | TypeSourceInfo* |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 2080 | TemplateDeclInstantiator::SubstFunctionType(FunctionDecl *D, |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2081 | llvm::SmallVectorImpl<ParmVarDecl *> &Params) { |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 2082 | TypeSourceInfo *OldTInfo = D->getTypeSourceInfo(); |
| 2083 | assert(OldTInfo && "substituting function without type source info"); |
| 2084 | assert(Params.empty() && "parameter vector is non-empty at start"); |
John McCall | 6cd3b9f | 2010-04-09 17:38:44 +0000 | [diff] [blame] | 2085 | TypeSourceInfo *NewTInfo |
| 2086 | = SemaRef.SubstFunctionDeclType(OldTInfo, TemplateArgs, |
| 2087 | D->getTypeSpecStartLoc(), |
| 2088 | D->getDeclName()); |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 2089 | if (!NewTInfo) |
| 2090 | return 0; |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2091 | |
Douglas Gregor | cb27b0f | 2010-04-12 07:48:19 +0000 | [diff] [blame] | 2092 | if (NewTInfo != OldTInfo) { |
| 2093 | // Get parameters from the new type info. |
Abramo Bagnara | 140a2bd | 2010-12-13 22:27:55 +0000 | [diff] [blame] | 2094 | TypeLoc OldTL = OldTInfo->getTypeLoc().IgnoreParens(); |
Douglas Gregor | 6920cdc | 2010-05-03 15:32:18 +0000 | [diff] [blame] | 2095 | if (FunctionProtoTypeLoc *OldProtoLoc |
| 2096 | = dyn_cast<FunctionProtoTypeLoc>(&OldTL)) { |
Abramo Bagnara | 140a2bd | 2010-12-13 22:27:55 +0000 | [diff] [blame] | 2097 | TypeLoc NewTL = NewTInfo->getTypeLoc().IgnoreParens(); |
Douglas Gregor | 6920cdc | 2010-05-03 15:32:18 +0000 | [diff] [blame] | 2098 | FunctionProtoTypeLoc *NewProtoLoc = cast<FunctionProtoTypeLoc>(&NewTL); |
| 2099 | assert(NewProtoLoc && "Missing prototype?"); |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 2100 | unsigned NewIdx = 0, NumNewParams = NewProtoLoc->getNumArgs(); |
| 2101 | for (unsigned OldIdx = 0, NumOldParams = OldProtoLoc->getNumArgs(); |
| 2102 | OldIdx != NumOldParams; ++OldIdx) { |
| 2103 | ParmVarDecl *OldParam = OldProtoLoc->getArg(OldIdx); |
| 2104 | if (!OldParam->isParameterPack() || |
| 2105 | (NewIdx < NumNewParams && |
| 2106 | NewProtoLoc->getArg(NewIdx)->isParameterPack())) { |
| 2107 | // Simple case: normal parameter, or a parameter pack that's |
| 2108 | // instantiated to a (still-dependent) parameter pack. |
| 2109 | ParmVarDecl *NewParam = NewProtoLoc->getArg(NewIdx++); |
| 2110 | Params.push_back(NewParam); |
| 2111 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(OldParam, |
| 2112 | NewParam); |
| 2113 | continue; |
| 2114 | } |
| 2115 | |
| 2116 | // Parameter pack: make the instantiation an argument pack. |
| 2117 | SemaRef.CurrentInstantiationScope->MakeInstantiatedLocalArgPack( |
| 2118 | OldParam); |
Douglas Gregor | 21371ea | 2011-01-11 03:14:20 +0000 | [diff] [blame] | 2119 | unsigned NumArgumentsInExpansion |
| 2120 | = SemaRef.getNumArgumentsInExpansion(OldParam->getType(), |
| 2121 | TemplateArgs); |
| 2122 | while (NumArgumentsInExpansion--) { |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 2123 | ParmVarDecl *NewParam = NewProtoLoc->getArg(NewIdx++); |
| 2124 | Params.push_back(NewParam); |
| 2125 | SemaRef.CurrentInstantiationScope->InstantiatedLocalPackArg(OldParam, |
| 2126 | NewParam); |
| 2127 | } |
Douglas Gregor | 6920cdc | 2010-05-03 15:32:18 +0000 | [diff] [blame] | 2128 | } |
Douglas Gregor | 895162d | 2010-04-30 18:55:50 +0000 | [diff] [blame] | 2129 | } |
Douglas Gregor | cb27b0f | 2010-04-12 07:48:19 +0000 | [diff] [blame] | 2130 | } else { |
| 2131 | // The function type itself was not dependent and therefore no |
| 2132 | // substitution occurred. However, we still need to instantiate |
| 2133 | // the function parameters themselves. |
Abramo Bagnara | 140a2bd | 2010-12-13 22:27:55 +0000 | [diff] [blame] | 2134 | TypeLoc OldTL = OldTInfo->getTypeLoc().IgnoreParens(); |
Douglas Gregor | 6920cdc | 2010-05-03 15:32:18 +0000 | [diff] [blame] | 2135 | if (FunctionProtoTypeLoc *OldProtoLoc |
| 2136 | = dyn_cast<FunctionProtoTypeLoc>(&OldTL)) { |
| 2137 | for (unsigned i = 0, i_end = OldProtoLoc->getNumArgs(); i != i_end; ++i) { |
| 2138 | ParmVarDecl *Parm = VisitParmVarDecl(OldProtoLoc->getArg(i)); |
| 2139 | if (!Parm) |
| 2140 | return 0; |
| 2141 | Params.push_back(Parm); |
| 2142 | } |
Douglas Gregor | cb27b0f | 2010-04-12 07:48:19 +0000 | [diff] [blame] | 2143 | } |
| 2144 | } |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 2145 | return NewTInfo; |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2146 | } |
| 2147 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2148 | /// \brief Initializes the common fields of an instantiation function |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 2149 | /// declaration (New) from the corresponding fields of its template (Tmpl). |
| 2150 | /// |
| 2151 | /// \returns true if there was an error |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2152 | bool |
| 2153 | TemplateDeclInstantiator::InitFunctionInstantiation(FunctionDecl *New, |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 2154 | FunctionDecl *Tmpl) { |
Sean Hunt | 10620eb | 2011-05-06 20:44:56 +0000 | [diff] [blame] | 2155 | if (Tmpl->isDeletedAsWritten()) |
| 2156 | New->setDeletedAsWritten(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2157 | |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2158 | // If we are performing substituting explicitly-specified template arguments |
| 2159 | // or deduced template arguments into a function template and we reach this |
| 2160 | // point, we are now past the point where SFINAE applies and have committed |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2161 | // to keeping the new function template specialization. We therefore |
| 2162 | // convert the active template instantiation for the function template |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2163 | // into a template instantiation for this specific function template |
| 2164 | // specialization, which is not a SFINAE context, so that we diagnose any |
| 2165 | // further errors in the declaration itself. |
| 2166 | typedef Sema::ActiveTemplateInstantiation ActiveInstType; |
| 2167 | ActiveInstType &ActiveInst = SemaRef.ActiveTemplateInstantiations.back(); |
| 2168 | if (ActiveInst.Kind == ActiveInstType::ExplicitTemplateArgumentSubstitution || |
| 2169 | ActiveInst.Kind == ActiveInstType::DeducedTemplateArgumentSubstitution) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2170 | if (FunctionTemplateDecl *FunTmpl |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2171 | = dyn_cast<FunctionTemplateDecl>((Decl *)ActiveInst.Entity)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2172 | assert(FunTmpl->getTemplatedDecl() == Tmpl && |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2173 | "Deduction from the wrong function template?"); |
Daniel Dunbar | bcbb8bd | 2009-07-16 22:10:11 +0000 | [diff] [blame] | 2174 | (void) FunTmpl; |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2175 | ActiveInst.Kind = ActiveInstType::TemplateInstantiation; |
| 2176 | ActiveInst.Entity = reinterpret_cast<uintptr_t>(New); |
Douglas Gregor | f35f828 | 2009-11-11 21:54:23 +0000 | [diff] [blame] | 2177 | --SemaRef.NonInstantiationEntries; |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2178 | } |
| 2179 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2180 | |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2181 | const FunctionProtoType *Proto = Tmpl->getType()->getAs<FunctionProtoType>(); |
| 2182 | assert(Proto && "Function template without prototype?"); |
| 2183 | |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2184 | if (Proto->hasExceptionSpec() || Proto->getNoReturnAttr()) { |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2185 | // The function has an exception specification or a "noreturn" |
| 2186 | // attribute. Substitute into each of the exception types. |
| 2187 | llvm::SmallVector<QualType, 4> Exceptions; |
| 2188 | for (unsigned I = 0, N = Proto->getNumExceptions(); I != N; ++I) { |
| 2189 | // FIXME: Poor location information! |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2190 | if (const PackExpansionType *PackExpansion |
| 2191 | = Proto->getExceptionType(I)->getAs<PackExpansionType>()) { |
| 2192 | // We have a pack expansion. Instantiate it. |
| 2193 | llvm::SmallVector<UnexpandedParameterPack, 2> Unexpanded; |
| 2194 | SemaRef.collectUnexpandedParameterPacks(PackExpansion->getPattern(), |
| 2195 | Unexpanded); |
| 2196 | assert(!Unexpanded.empty() && |
| 2197 | "Pack expansion without parameter packs?"); |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2198 | |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2199 | bool Expand = false; |
Douglas Gregor | d373119 | 2011-01-10 07:32:04 +0000 | [diff] [blame] | 2200 | bool RetainExpansion = false; |
Douglas Gregor | cded4f6 | 2011-01-14 17:04:44 +0000 | [diff] [blame] | 2201 | llvm::Optional<unsigned> NumExpansions |
| 2202 | = PackExpansion->getNumExpansions(); |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2203 | if (SemaRef.CheckParameterPacksForExpansion(New->getLocation(), |
| 2204 | SourceRange(), |
| 2205 | Unexpanded.data(), |
| 2206 | Unexpanded.size(), |
| 2207 | TemplateArgs, |
Douglas Gregor | d373119 | 2011-01-10 07:32:04 +0000 | [diff] [blame] | 2208 | Expand, |
| 2209 | RetainExpansion, |
| 2210 | NumExpansions)) |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2211 | break; |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2212 | |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2213 | if (!Expand) { |
| 2214 | // We can't expand this pack expansion into separate arguments yet; |
Douglas Gregor | cded4f6 | 2011-01-14 17:04:44 +0000 | [diff] [blame] | 2215 | // just substitute into the pattern and create a new pack expansion |
| 2216 | // type. |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2217 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, -1); |
| 2218 | QualType T = SemaRef.SubstType(PackExpansion->getPattern(), |
| 2219 | TemplateArgs, |
| 2220 | New->getLocation(), New->getDeclName()); |
| 2221 | if (T.isNull()) |
| 2222 | break; |
| 2223 | |
Douglas Gregor | cded4f6 | 2011-01-14 17:04:44 +0000 | [diff] [blame] | 2224 | T = SemaRef.Context.getPackExpansionType(T, NumExpansions); |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2225 | Exceptions.push_back(T); |
| 2226 | continue; |
| 2227 | } |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2228 | |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2229 | // Substitute into the pack expansion pattern for each template |
| 2230 | bool Invalid = false; |
Douglas Gregor | cded4f6 | 2011-01-14 17:04:44 +0000 | [diff] [blame] | 2231 | for (unsigned ArgIdx = 0; ArgIdx != *NumExpansions; ++ArgIdx) { |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2232 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, ArgIdx); |
| 2233 | |
| 2234 | QualType T = SemaRef.SubstType(PackExpansion->getPattern(), |
| 2235 | TemplateArgs, |
| 2236 | New->getLocation(), New->getDeclName()); |
| 2237 | if (T.isNull()) { |
| 2238 | Invalid = true; |
| 2239 | break; |
| 2240 | } |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2241 | |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2242 | Exceptions.push_back(T); |
| 2243 | } |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2244 | |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2245 | if (Invalid) |
| 2246 | break; |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2247 | |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2248 | continue; |
| 2249 | } |
| 2250 | |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2251 | QualType T |
| 2252 | = SemaRef.SubstType(Proto->getExceptionType(I), TemplateArgs, |
| 2253 | New->getLocation(), New->getDeclName()); |
| 2254 | if (T.isNull() || |
| 2255 | SemaRef.CheckSpecifiedExceptionType(T, New->getLocation())) |
| 2256 | continue; |
| 2257 | |
| 2258 | Exceptions.push_back(T); |
| 2259 | } |
Sebastian Redl | 56fb926 | 2011-03-14 18:51:50 +0000 | [diff] [blame] | 2260 | Expr *NoexceptExpr = 0; |
| 2261 | if (Expr *OldNoexceptExpr = Proto->getNoexceptExpr()) { |
Douglas Gregor | 3617e19 | 2011-06-01 15:55:51 +0000 | [diff] [blame] | 2262 | EnterExpressionEvaluationContext Unevaluated(SemaRef, Sema::Unevaluated); |
Sebastian Redl | 56fb926 | 2011-03-14 18:51:50 +0000 | [diff] [blame] | 2263 | ExprResult E = SemaRef.SubstExpr(OldNoexceptExpr, TemplateArgs); |
| 2264 | if (E.isUsable()) |
| 2265 | NoexceptExpr = E.take(); |
| 2266 | } |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2267 | |
| 2268 | // Rebuild the function type |
| 2269 | |
John McCall | e23cf43 | 2010-12-14 08:05:40 +0000 | [diff] [blame] | 2270 | FunctionProtoType::ExtProtoInfo EPI = Proto->getExtProtoInfo(); |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2271 | EPI.ExceptionSpecType = Proto->getExceptionSpecType(); |
John McCall | e23cf43 | 2010-12-14 08:05:40 +0000 | [diff] [blame] | 2272 | EPI.NumExceptions = Exceptions.size(); |
| 2273 | EPI.Exceptions = Exceptions.data(); |
Sebastian Redl | 56fb926 | 2011-03-14 18:51:50 +0000 | [diff] [blame] | 2274 | EPI.NoexceptExpr = NoexceptExpr; |
John McCall | e23cf43 | 2010-12-14 08:05:40 +0000 | [diff] [blame] | 2275 | EPI.ExtInfo = Proto->getExtInfo(); |
| 2276 | |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2277 | const FunctionProtoType *NewProto |
| 2278 | = New->getType()->getAs<FunctionProtoType>(); |
| 2279 | assert(NewProto && "Template instantiation without function prototype?"); |
| 2280 | New->setType(SemaRef.Context.getFunctionType(NewProto->getResultType(), |
| 2281 | NewProto->arg_type_begin(), |
| 2282 | NewProto->getNumArgs(), |
John McCall | e23cf43 | 2010-12-14 08:05:40 +0000 | [diff] [blame] | 2283 | EPI)); |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2284 | } |
| 2285 | |
John McCall | 1d8d1cc | 2010-08-01 02:01:53 +0000 | [diff] [blame] | 2286 | SemaRef.InstantiateAttrs(TemplateArgs, Tmpl, New); |
Douglas Gregor | 7cf84d6 | 2010-06-15 17:05:35 +0000 | [diff] [blame] | 2287 | |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 2288 | return false; |
| 2289 | } |
| 2290 | |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2291 | /// \brief Initializes common fields of an instantiated method |
| 2292 | /// declaration (New) from the corresponding fields of its template |
| 2293 | /// (Tmpl). |
| 2294 | /// |
| 2295 | /// \returns true if there was an error |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2296 | bool |
| 2297 | TemplateDeclInstantiator::InitMethodInstantiation(CXXMethodDecl *New, |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2298 | CXXMethodDecl *Tmpl) { |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 2299 | if (InitFunctionInstantiation(New, Tmpl)) |
| 2300 | return true; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2301 | |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2302 | New->setAccess(Tmpl->getAccess()); |
Fariborz Jahanian | e7184df | 2009-12-03 18:44:40 +0000 | [diff] [blame] | 2303 | if (Tmpl->isVirtualAsWritten()) |
Douglas Gregor | 85606eb | 2010-09-28 20:50:54 +0000 | [diff] [blame] | 2304 | New->setVirtualAsWritten(true); |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2305 | |
| 2306 | // FIXME: attributes |
| 2307 | // FIXME: New needs a pointer to Tmpl |
| 2308 | return false; |
| 2309 | } |
Douglas Gregor | a58861f | 2009-05-13 20:28:22 +0000 | [diff] [blame] | 2310 | |
| 2311 | /// \brief Instantiate the definition of the given function from its |
| 2312 | /// template. |
| 2313 | /// |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2314 | /// \param PointOfInstantiation the point at which the instantiation was |
| 2315 | /// required. Note that this is not precisely a "point of instantiation" |
| 2316 | /// for the function, but it's close. |
| 2317 | /// |
Douglas Gregor | a58861f | 2009-05-13 20:28:22 +0000 | [diff] [blame] | 2318 | /// \param Function the already-instantiated declaration of a |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2319 | /// function template specialization or member function of a class template |
| 2320 | /// specialization. |
| 2321 | /// |
| 2322 | /// \param Recursive if true, recursively instantiates any functions that |
| 2323 | /// are required by this instantiation. |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2324 | /// |
| 2325 | /// \param DefinitionRequired if true, then we are performing an explicit |
| 2326 | /// instantiation where the body of the function is required. Complain if |
| 2327 | /// there is no such body. |
Douglas Gregor | f3e7ce4 | 2009-05-18 17:01:57 +0000 | [diff] [blame] | 2328 | void Sema::InstantiateFunctionDefinition(SourceLocation PointOfInstantiation, |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2329 | FunctionDecl *Function, |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2330 | bool Recursive, |
| 2331 | bool DefinitionRequired) { |
Sean Hunt | 10620eb | 2011-05-06 20:44:56 +0000 | [diff] [blame] | 2332 | if (Function->isInvalidDecl() || Function->isDefined()) |
Douglas Gregor | 54dabfc | 2009-05-14 23:26:13 +0000 | [diff] [blame] | 2333 | return; |
| 2334 | |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 2335 | // Never instantiate an explicit specialization. |
| 2336 | if (Function->getTemplateSpecializationKind() == TSK_ExplicitSpecialization) |
| 2337 | return; |
Douglas Gregor | 6cfacfe | 2010-05-17 17:34:56 +0000 | [diff] [blame] | 2338 | |
Douglas Gregor | 1eee0e7 | 2009-05-14 21:06:31 +0000 | [diff] [blame] | 2339 | // Find the function body that we'll be substituting. |
Douglas Gregor | 3b846b6 | 2009-10-27 20:53:28 +0000 | [diff] [blame] | 2340 | const FunctionDecl *PatternDecl = Function->getTemplateInstantiationPattern(); |
Sean Hunt | f996e05 | 2011-05-27 20:00:14 +0000 | [diff] [blame] | 2341 | assert(PatternDecl && "instantiating a non-template"); |
| 2342 | |
| 2343 | Stmt *Pattern = PatternDecl->getBody(PatternDecl); |
| 2344 | assert(PatternDecl && "template definition is not a template"); |
| 2345 | if (!Pattern) { |
| 2346 | // Try to find a defaulted definition |
| 2347 | PatternDecl->isDefined(PatternDecl); |
Sean Hunt | dfab854 | 2011-05-25 22:02:25 +0000 | [diff] [blame] | 2348 | } |
Sean Hunt | f996e05 | 2011-05-27 20:00:14 +0000 | [diff] [blame] | 2349 | assert(PatternDecl && "template definition is not a template"); |
Douglas Gregor | 1eee0e7 | 2009-05-14 21:06:31 +0000 | [diff] [blame] | 2350 | |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 2351 | // Postpone late parsed template instantiations. |
Sean Hunt | f996e05 | 2011-05-27 20:00:14 +0000 | [diff] [blame] | 2352 | if (PatternDecl->isLateTemplateParsed() && |
Nick Lewycky | 8a29bc0 | 2011-05-12 03:51:24 +0000 | [diff] [blame] | 2353 | !LateTemplateParser) { |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 2354 | PendingInstantiations.push_back( |
| 2355 | std::make_pair(Function, PointOfInstantiation)); |
| 2356 | return; |
| 2357 | } |
| 2358 | |
| 2359 | // Call the LateTemplateParser callback if there a need to late parse |
| 2360 | // a templated function definition. |
Sean Hunt | f996e05 | 2011-05-27 20:00:14 +0000 | [diff] [blame] | 2361 | if (!Pattern && PatternDecl->isLateTemplateParsed() && |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 2362 | LateTemplateParser) { |
Francois Pichet | 4a47e8d | 2011-04-23 11:52:20 +0000 | [diff] [blame] | 2363 | LateTemplateParser(OpaqueParser, PatternDecl); |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 2364 | Pattern = PatternDecl->getBody(PatternDecl); |
| 2365 | } |
| 2366 | |
Sean Hunt | f996e05 | 2011-05-27 20:00:14 +0000 | [diff] [blame] | 2367 | if (!Pattern && !PatternDecl->isDefaulted()) { |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2368 | if (DefinitionRequired) { |
| 2369 | if (Function->getPrimaryTemplate()) |
| 2370 | Diag(PointOfInstantiation, |
| 2371 | diag::err_explicit_instantiation_undefined_func_template) |
| 2372 | << Function->getPrimaryTemplate(); |
| 2373 | else |
| 2374 | Diag(PointOfInstantiation, |
| 2375 | diag::err_explicit_instantiation_undefined_member) |
| 2376 | << 1 << Function->getDeclName() << Function->getDeclContext(); |
| 2377 | |
| 2378 | if (PatternDecl) |
| 2379 | Diag(PatternDecl->getLocation(), |
| 2380 | diag::note_explicit_instantiation_here); |
Douglas Gregor | cfe833b | 2010-05-17 17:57:54 +0000 | [diff] [blame] | 2381 | Function->setInvalidDecl(); |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 2382 | } else if (Function->getTemplateSpecializationKind() |
| 2383 | == TSK_ExplicitInstantiationDefinition) { |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2384 | PendingInstantiations.push_back( |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 2385 | std::make_pair(Function, PointOfInstantiation)); |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2386 | } |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 2387 | |
Douglas Gregor | 1eee0e7 | 2009-05-14 21:06:31 +0000 | [diff] [blame] | 2388 | return; |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2389 | } |
Douglas Gregor | 1eee0e7 | 2009-05-14 21:06:31 +0000 | [diff] [blame] | 2390 | |
Douglas Gregor | d0e3daf | 2009-09-04 22:48:11 +0000 | [diff] [blame] | 2391 | // C++0x [temp.explicit]p9: |
| 2392 | // Except for inline functions, other explicit instantiation declarations |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2393 | // have the effect of suppressing the implicit instantiation of the entity |
Douglas Gregor | d0e3daf | 2009-09-04 22:48:11 +0000 | [diff] [blame] | 2394 | // to which they refer. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2395 | if (Function->getTemplateSpecializationKind() |
Douglas Gregor | d0e3daf | 2009-09-04 22:48:11 +0000 | [diff] [blame] | 2396 | == TSK_ExplicitInstantiationDeclaration && |
Douglas Gregor | 7ced9c8 | 2009-10-27 21:11:48 +0000 | [diff] [blame] | 2397 | !PatternDecl->isInlined()) |
Douglas Gregor | d0e3daf | 2009-09-04 22:48:11 +0000 | [diff] [blame] | 2398 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2399 | |
Douglas Gregor | f3e7ce4 | 2009-05-18 17:01:57 +0000 | [diff] [blame] | 2400 | InstantiatingTemplate Inst(*this, PointOfInstantiation, Function); |
| 2401 | if (Inst) |
Douglas Gregor | e7089b0 | 2010-05-03 23:29:10 +0000 | [diff] [blame] | 2402 | return; |
| 2403 | |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2404 | // If we're performing recursive template instantiation, create our own |
| 2405 | // queue of pending implicit instantiations that we will instantiate later, |
| 2406 | // while we're still within our own instantiation context. |
Nick Lewycky | 2a5f99e | 2010-11-25 00:35:20 +0000 | [diff] [blame] | 2407 | llvm::SmallVector<VTableUse, 16> SavedVTableUses; |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2408 | std::deque<PendingImplicitInstantiation> SavedPendingInstantiations; |
Nick Lewycky | 2a5f99e | 2010-11-25 00:35:20 +0000 | [diff] [blame] | 2409 | if (Recursive) { |
| 2410 | VTableUses.swap(SavedVTableUses); |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2411 | PendingInstantiations.swap(SavedPendingInstantiations); |
Nick Lewycky | 2a5f99e | 2010-11-25 00:35:20 +0000 | [diff] [blame] | 2412 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2413 | |
Douglas Gregor | 9679caf | 2010-05-12 17:27:19 +0000 | [diff] [blame] | 2414 | EnterExpressionEvaluationContext EvalContext(*this, |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 2415 | Sema::PotentiallyEvaluated); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 2416 | ActOnStartOfFunctionDef(0, Function); |
Douglas Gregor | e2c31ff | 2009-05-15 17:59:04 +0000 | [diff] [blame] | 2417 | |
Douglas Gregor | 54dabfc | 2009-05-14 23:26:13 +0000 | [diff] [blame] | 2418 | // Introduce a new scope where local variable instantiations will be |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 2419 | // recorded, unless we're actually a member function within a local |
| 2420 | // class, in which case we need to merge our results with the parent |
| 2421 | // scope (of the enclosing function). |
| 2422 | bool MergeWithParentScope = false; |
| 2423 | if (CXXRecordDecl *Rec = dyn_cast<CXXRecordDecl>(Function->getDeclContext())) |
| 2424 | MergeWithParentScope = Rec->isLocalClass(); |
| 2425 | |
| 2426 | LocalInstantiationScope Scope(*this, MergeWithParentScope); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2427 | |
Douglas Gregor | 54dabfc | 2009-05-14 23:26:13 +0000 | [diff] [blame] | 2428 | // Introduce the instantiated function parameters into the local |
Peter Collingbourne | 8a6c0f1 | 2010-07-18 16:45:46 +0000 | [diff] [blame] | 2429 | // instantiation scope, and set the parameter names to those used |
| 2430 | // in the template. |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 2431 | unsigned FParamIdx = 0; |
Peter Collingbourne | 8a6c0f1 | 2010-07-18 16:45:46 +0000 | [diff] [blame] | 2432 | for (unsigned I = 0, N = PatternDecl->getNumParams(); I != N; ++I) { |
| 2433 | const ParmVarDecl *PatternParam = PatternDecl->getParamDecl(I); |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 2434 | if (!PatternParam->isParameterPack()) { |
| 2435 | // Simple case: not a parameter pack. |
| 2436 | assert(FParamIdx < Function->getNumParams()); |
| 2437 | ParmVarDecl *FunctionParam = Function->getParamDecl(I); |
| 2438 | FunctionParam->setDeclName(PatternParam->getDeclName()); |
| 2439 | Scope.InstantiatedLocal(PatternParam, FunctionParam); |
| 2440 | ++FParamIdx; |
| 2441 | continue; |
| 2442 | } |
| 2443 | |
| 2444 | // Expand the parameter pack. |
| 2445 | Scope.MakeInstantiatedLocalArgPack(PatternParam); |
| 2446 | for (unsigned NumFParams = Function->getNumParams(); |
| 2447 | FParamIdx < NumFParams; |
| 2448 | ++FParamIdx) { |
| 2449 | ParmVarDecl *FunctionParam = Function->getParamDecl(FParamIdx); |
| 2450 | FunctionParam->setDeclName(PatternParam->getDeclName()); |
| 2451 | Scope.InstantiatedLocalPackArg(PatternParam, FunctionParam); |
| 2452 | } |
Peter Collingbourne | 8a6c0f1 | 2010-07-18 16:45:46 +0000 | [diff] [blame] | 2453 | } |
Douglas Gregor | 54dabfc | 2009-05-14 23:26:13 +0000 | [diff] [blame] | 2454 | |
Douglas Gregor | b9f1b8d | 2009-05-15 00:01:03 +0000 | [diff] [blame] | 2455 | // Enter the scope of this instantiation. We don't use |
| 2456 | // PushDeclContext because we don't have a scope. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 2457 | Sema::ContextRAII savedContext(*this, Function); |
Douglas Gregor | b9f1b8d | 2009-05-15 00:01:03 +0000 | [diff] [blame] | 2458 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2459 | MultiLevelTemplateArgumentList TemplateArgs = |
Douglas Gregor | e7089b0 | 2010-05-03 23:29:10 +0000 | [diff] [blame] | 2460 | getTemplateInstantiationArgs(Function, 0, false, PatternDecl); |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2461 | |
Sean Hunt | cd10dec | 2011-05-23 23:14:04 +0000 | [diff] [blame] | 2462 | if (PatternDecl->isDefaulted()) { |
| 2463 | ActOnFinishFunctionBody(Function, 0, /*IsInstantiation=*/true); |
| 2464 | |
| 2465 | SetDeclDefaulted(Function, PatternDecl->getLocation()); |
Sean Hunt | cd10dec | 2011-05-23 23:14:04 +0000 | [diff] [blame] | 2466 | } else { |
| 2467 | // If this is a constructor, instantiate the member initializers. |
| 2468 | if (const CXXConstructorDecl *Ctor = |
| 2469 | dyn_cast<CXXConstructorDecl>(PatternDecl)) { |
| 2470 | InstantiateMemInitializers(cast<CXXConstructorDecl>(Function), Ctor, |
| 2471 | TemplateArgs); |
| 2472 | } |
| 2473 | |
| 2474 | // Instantiate the function body. |
| 2475 | StmtResult Body = SubstStmt(Pattern, TemplateArgs); |
| 2476 | |
| 2477 | if (Body.isInvalid()) |
| 2478 | Function->setInvalidDecl(); |
| 2479 | |
| 2480 | ActOnFinishFunctionBody(Function, Body.get(), |
| 2481 | /*IsInstantiation=*/true); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2482 | } |
| 2483 | |
John McCall | 0c01d18 | 2010-03-24 05:22:00 +0000 | [diff] [blame] | 2484 | PerformDependentDiagnostics(PatternDecl, TemplateArgs); |
| 2485 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 2486 | savedContext.pop(); |
Douglas Gregor | aba43bb | 2009-05-26 20:50:29 +0000 | [diff] [blame] | 2487 | |
| 2488 | DeclGroupRef DG(Function); |
| 2489 | Consumer.HandleTopLevelDecl(DG); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2490 | |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 2491 | // This class may have local implicit instantiations that need to be |
| 2492 | // instantiation within this scope. |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2493 | PerformPendingInstantiations(/*LocalOnly=*/true); |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 2494 | Scope.Exit(); |
| 2495 | |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2496 | if (Recursive) { |
Nick Lewycky | 2a5f99e | 2010-11-25 00:35:20 +0000 | [diff] [blame] | 2497 | // Define any pending vtables. |
| 2498 | DefineUsedVTables(); |
| 2499 | |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2500 | // Instantiate any pending implicit instantiations found during the |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2501 | // instantiation of this template. |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2502 | PerformPendingInstantiations(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2503 | |
Nick Lewycky | 2a5f99e | 2010-11-25 00:35:20 +0000 | [diff] [blame] | 2504 | // Restore the set of pending vtables. |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 2505 | assert(VTableUses.empty() && |
| 2506 | "VTableUses should be empty before it is discarded."); |
Nick Lewycky | 2a5f99e | 2010-11-25 00:35:20 +0000 | [diff] [blame] | 2507 | VTableUses.swap(SavedVTableUses); |
| 2508 | |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2509 | // Restore the set of pending implicit instantiations. |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 2510 | assert(PendingInstantiations.empty() && |
| 2511 | "PendingInstantiations should be empty before it is discarded."); |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2512 | PendingInstantiations.swap(SavedPendingInstantiations); |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2513 | } |
Douglas Gregor | a58861f | 2009-05-13 20:28:22 +0000 | [diff] [blame] | 2514 | } |
| 2515 | |
| 2516 | /// \brief Instantiate the definition of the given variable from its |
| 2517 | /// template. |
| 2518 | /// |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2519 | /// \param PointOfInstantiation the point at which the instantiation was |
| 2520 | /// required. Note that this is not precisely a "point of instantiation" |
| 2521 | /// for the function, but it's close. |
| 2522 | /// |
| 2523 | /// \param Var the already-instantiated declaration of a static member |
| 2524 | /// variable of a class template specialization. |
| 2525 | /// |
| 2526 | /// \param Recursive if true, recursively instantiates any functions that |
| 2527 | /// are required by this instantiation. |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2528 | /// |
| 2529 | /// \param DefinitionRequired if true, then we are performing an explicit |
| 2530 | /// instantiation where an out-of-line definition of the member variable |
| 2531 | /// is required. Complain if there is no such definition. |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2532 | void Sema::InstantiateStaticDataMemberDefinition( |
| 2533 | SourceLocation PointOfInstantiation, |
| 2534 | VarDecl *Var, |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2535 | bool Recursive, |
| 2536 | bool DefinitionRequired) { |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2537 | if (Var->isInvalidDecl()) |
| 2538 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2539 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2540 | // Find the out-of-line definition of this static data member. |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2541 | VarDecl *Def = Var->getInstantiatedFromStaticDataMember(); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2542 | assert(Def && "This data member was not instantiated from a template?"); |
Douglas Gregor | 0d03514 | 2009-10-27 18:42:08 +0000 | [diff] [blame] | 2543 | assert(Def->isStaticDataMember() && "Not a static data member?"); |
| 2544 | Def = Def->getOutOfLineDefinition(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2545 | |
Douglas Gregor | 0d03514 | 2009-10-27 18:42:08 +0000 | [diff] [blame] | 2546 | if (!Def) { |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2547 | // We did not find an out-of-line definition of this static data member, |
| 2548 | // so we won't perform any instantiation. Rather, we rely on the user to |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2549 | // instantiate this definition (or provide a specialization for it) in |
| 2550 | // another translation unit. |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2551 | if (DefinitionRequired) { |
Douglas Gregor | 0d03514 | 2009-10-27 18:42:08 +0000 | [diff] [blame] | 2552 | Def = Var->getInstantiatedFromStaticDataMember(); |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2553 | Diag(PointOfInstantiation, |
| 2554 | diag::err_explicit_instantiation_undefined_member) |
| 2555 | << 2 << Var->getDeclName() << Var->getDeclContext(); |
| 2556 | Diag(Def->getLocation(), diag::note_explicit_instantiation_here); |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 2557 | } else if (Var->getTemplateSpecializationKind() |
| 2558 | == TSK_ExplicitInstantiationDefinition) { |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2559 | PendingInstantiations.push_back( |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 2560 | std::make_pair(Var, PointOfInstantiation)); |
| 2561 | } |
| 2562 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2563 | return; |
| 2564 | } |
| 2565 | |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 2566 | // Never instantiate an explicit specialization. |
Douglas Gregor | 1028c9f | 2009-10-14 21:29:40 +0000 | [diff] [blame] | 2567 | if (Var->getTemplateSpecializationKind() == TSK_ExplicitSpecialization) |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 2568 | return; |
| 2569 | |
| 2570 | // C++0x [temp.explicit]p9: |
| 2571 | // Except for inline functions, other explicit instantiation declarations |
| 2572 | // have the effect of suppressing the implicit instantiation of the entity |
| 2573 | // to which they refer. |
Douglas Gregor | 1028c9f | 2009-10-14 21:29:40 +0000 | [diff] [blame] | 2574 | if (Var->getTemplateSpecializationKind() |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 2575 | == TSK_ExplicitInstantiationDeclaration) |
| 2576 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2577 | |
Douglas Gregor | f15748a | 2011-06-03 03:35:07 +0000 | [diff] [blame] | 2578 | // If we already have a definition, we're done. |
| 2579 | if (Var->getDefinition()) |
| 2580 | return; |
| 2581 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2582 | InstantiatingTemplate Inst(*this, PointOfInstantiation, Var); |
| 2583 | if (Inst) |
| 2584 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2585 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2586 | // If we're performing recursive template instantiation, create our own |
| 2587 | // queue of pending implicit instantiations that we will instantiate later, |
| 2588 | // while we're still within our own instantiation context. |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 2589 | llvm::SmallVector<VTableUse, 16> SavedVTableUses; |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2590 | std::deque<PendingImplicitInstantiation> SavedPendingInstantiations; |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 2591 | if (Recursive) { |
| 2592 | VTableUses.swap(SavedVTableUses); |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2593 | PendingInstantiations.swap(SavedPendingInstantiations); |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 2594 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2595 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2596 | // Enter the scope of this instantiation. We don't use |
| 2597 | // PushDeclContext because we don't have a scope. |
John McCall | f5ba7e0 | 2011-02-14 20:37:25 +0000 | [diff] [blame] | 2598 | ContextRAII previousContext(*this, Var->getDeclContext()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2599 | |
Douglas Gregor | 1028c9f | 2009-10-14 21:29:40 +0000 | [diff] [blame] | 2600 | VarDecl *OldVar = Var; |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 2601 | Var = cast_or_null<VarDecl>(SubstDecl(Def, Var->getDeclContext(), |
Nico Weber | 6bb4dcb | 2010-11-28 22:53:37 +0000 | [diff] [blame] | 2602 | getTemplateInstantiationArgs(Var))); |
John McCall | f5ba7e0 | 2011-02-14 20:37:25 +0000 | [diff] [blame] | 2603 | |
| 2604 | previousContext.pop(); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2605 | |
| 2606 | if (Var) { |
Douglas Gregor | 583f33b | 2009-10-15 18:07:02 +0000 | [diff] [blame] | 2607 | MemberSpecializationInfo *MSInfo = OldVar->getMemberSpecializationInfo(); |
| 2608 | assert(MSInfo && "Missing member specialization information?"); |
| 2609 | Var->setTemplateSpecializationKind(MSInfo->getTemplateSpecializationKind(), |
| 2610 | MSInfo->getPointOfInstantiation()); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2611 | DeclGroupRef DG(Var); |
| 2612 | Consumer.HandleTopLevelDecl(DG); |
| 2613 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2614 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2615 | if (Recursive) { |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 2616 | // Define any newly required vtables. |
| 2617 | DefineUsedVTables(); |
| 2618 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2619 | // Instantiate any pending implicit instantiations found during the |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2620 | // instantiation of this template. |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2621 | PerformPendingInstantiations(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2622 | |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 2623 | // Restore the set of pending vtables. |
| 2624 | assert(VTableUses.empty() && |
| 2625 | "VTableUses should be empty before it is discarded, " |
| 2626 | "while instantiating static data member."); |
| 2627 | VTableUses.swap(SavedVTableUses); |
| 2628 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2629 | // Restore the set of pending implicit instantiations. |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 2630 | assert(PendingInstantiations.empty() && |
| 2631 | "PendingInstantiations should be empty before it is discarded, " |
| 2632 | "while instantiating static data member."); |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2633 | PendingInstantiations.swap(SavedPendingInstantiations); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2634 | } |
Douglas Gregor | a58861f | 2009-05-13 20:28:22 +0000 | [diff] [blame] | 2635 | } |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 2636 | |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2637 | void |
| 2638 | Sema::InstantiateMemInitializers(CXXConstructorDecl *New, |
| 2639 | const CXXConstructorDecl *Tmpl, |
| 2640 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2641 | |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2642 | llvm::SmallVector<MemInitTy*, 4> NewInits; |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 2643 | bool AnyErrors = false; |
| 2644 | |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2645 | // Instantiate all the initializers. |
| 2646 | for (CXXConstructorDecl::init_const_iterator Inits = Tmpl->init_begin(), |
Douglas Gregor | 72f6d67 | 2009-09-01 21:04:42 +0000 | [diff] [blame] | 2647 | InitsEnd = Tmpl->init_end(); |
| 2648 | Inits != InitsEnd; ++Inits) { |
Sean Hunt | cbb6748 | 2011-01-08 20:30:50 +0000 | [diff] [blame] | 2649 | CXXCtorInitializer *Init = *Inits; |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2650 | |
Chandler Carruth | 030ef47 | 2010-09-03 21:54:20 +0000 | [diff] [blame] | 2651 | // Only instantiate written initializers, let Sema re-construct implicit |
| 2652 | // ones. |
| 2653 | if (!Init->isWritten()) |
| 2654 | continue; |
| 2655 | |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 2656 | SourceLocation LParenLoc, RParenLoc; |
John McCall | ca0408f | 2010-08-23 06:44:23 +0000 | [diff] [blame] | 2657 | ASTOwningVector<Expr*> NewArgs(*this); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2658 | |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2659 | SourceLocation EllipsisLoc; |
| 2660 | |
| 2661 | if (Init->isPackExpansion()) { |
| 2662 | // This is a pack expansion. We should expand it now. |
| 2663 | TypeLoc BaseTL = Init->getBaseClassInfo()->getTypeLoc(); |
| 2664 | llvm::SmallVector<UnexpandedParameterPack, 2> Unexpanded; |
| 2665 | collectUnexpandedParameterPacks(BaseTL, Unexpanded); |
| 2666 | bool ShouldExpand = false; |
Douglas Gregor | d373119 | 2011-01-10 07:32:04 +0000 | [diff] [blame] | 2667 | bool RetainExpansion = false; |
Douglas Gregor | cded4f6 | 2011-01-14 17:04:44 +0000 | [diff] [blame] | 2668 | llvm::Optional<unsigned> NumExpansions; |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2669 | if (CheckParameterPacksForExpansion(Init->getEllipsisLoc(), |
| 2670 | BaseTL.getSourceRange(), |
| 2671 | Unexpanded.data(), |
| 2672 | Unexpanded.size(), |
| 2673 | TemplateArgs, ShouldExpand, |
Douglas Gregor | d373119 | 2011-01-10 07:32:04 +0000 | [diff] [blame] | 2674 | RetainExpansion, |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2675 | NumExpansions)) { |
| 2676 | AnyErrors = true; |
| 2677 | New->setInvalidDecl(); |
| 2678 | continue; |
| 2679 | } |
| 2680 | assert(ShouldExpand && "Partial instantiation of base initializer?"); |
| 2681 | |
| 2682 | // Loop over all of the arguments in the argument pack(s), |
Douglas Gregor | cded4f6 | 2011-01-14 17:04:44 +0000 | [diff] [blame] | 2683 | for (unsigned I = 0; I != *NumExpansions; ++I) { |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2684 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(*this, I); |
| 2685 | |
| 2686 | // Instantiate the initializer. |
| 2687 | if (InstantiateInitializer(*this, Init->getInit(), TemplateArgs, |
| 2688 | LParenLoc, NewArgs, RParenLoc)) { |
| 2689 | AnyErrors = true; |
| 2690 | break; |
| 2691 | } |
| 2692 | |
| 2693 | // Instantiate the base type. |
| 2694 | TypeSourceInfo *BaseTInfo = SubstType(Init->getBaseClassInfo(), |
| 2695 | TemplateArgs, |
| 2696 | Init->getSourceLocation(), |
| 2697 | New->getDeclName()); |
| 2698 | if (!BaseTInfo) { |
| 2699 | AnyErrors = true; |
| 2700 | break; |
| 2701 | } |
| 2702 | |
| 2703 | // Build the initializer. |
| 2704 | MemInitResult NewInit = BuildBaseInitializer(BaseTInfo->getType(), |
| 2705 | BaseTInfo, |
| 2706 | (Expr **)NewArgs.data(), |
| 2707 | NewArgs.size(), |
| 2708 | Init->getLParenLoc(), |
| 2709 | Init->getRParenLoc(), |
| 2710 | New->getParent(), |
| 2711 | SourceLocation()); |
| 2712 | if (NewInit.isInvalid()) { |
| 2713 | AnyErrors = true; |
| 2714 | break; |
| 2715 | } |
| 2716 | |
| 2717 | NewInits.push_back(NewInit.get()); |
| 2718 | NewArgs.clear(); |
| 2719 | } |
| 2720 | |
| 2721 | continue; |
| 2722 | } |
| 2723 | |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 2724 | // Instantiate the initializer. |
| 2725 | if (InstantiateInitializer(*this, Init->getInit(), TemplateArgs, |
Douglas Gregor | a1a0478 | 2010-09-09 16:33:13 +0000 | [diff] [blame] | 2726 | LParenLoc, NewArgs, RParenLoc)) { |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 2727 | AnyErrors = true; |
| 2728 | continue; |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2729 | } |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 2730 | |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2731 | MemInitResult NewInit; |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2732 | if (Init->isBaseInitializer()) { |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 2733 | TypeSourceInfo *BaseTInfo = SubstType(Init->getBaseClassInfo(), |
Douglas Gregor | 802ab45 | 2009-12-02 22:36:29 +0000 | [diff] [blame] | 2734 | TemplateArgs, |
| 2735 | Init->getSourceLocation(), |
| 2736 | New->getDeclName()); |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 2737 | if (!BaseTInfo) { |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 2738 | AnyErrors = true; |
Douglas Gregor | 802ab45 | 2009-12-02 22:36:29 +0000 | [diff] [blame] | 2739 | New->setInvalidDecl(); |
| 2740 | continue; |
| 2741 | } |
| 2742 | |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 2743 | NewInit = BuildBaseInitializer(BaseTInfo->getType(), BaseTInfo, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2744 | (Expr **)NewArgs.data(), |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2745 | NewArgs.size(), |
Douglas Gregor | 802ab45 | 2009-12-02 22:36:29 +0000 | [diff] [blame] | 2746 | Init->getLParenLoc(), |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2747 | Init->getRParenLoc(), |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2748 | New->getParent(), |
| 2749 | EllipsisLoc); |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2750 | } else if (Init->isMemberInitializer()) { |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 2751 | FieldDecl *Member = cast_or_null<FieldDecl>(FindInstantiatedDecl( |
Francois Pichet | 00eb3f9 | 2010-12-04 09:14:42 +0000 | [diff] [blame] | 2752 | Init->getMemberLocation(), |
| 2753 | Init->getMember(), |
| 2754 | TemplateArgs)); |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 2755 | if (!Member) { |
| 2756 | AnyErrors = true; |
| 2757 | New->setInvalidDecl(); |
| 2758 | continue; |
| 2759 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2760 | |
| 2761 | NewInit = BuildMemberInitializer(Member, (Expr **)NewArgs.data(), |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2762 | NewArgs.size(), |
| 2763 | Init->getSourceLocation(), |
Douglas Gregor | 802ab45 | 2009-12-02 22:36:29 +0000 | [diff] [blame] | 2764 | Init->getLParenLoc(), |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2765 | Init->getRParenLoc()); |
Francois Pichet | 00eb3f9 | 2010-12-04 09:14:42 +0000 | [diff] [blame] | 2766 | } else if (Init->isIndirectMemberInitializer()) { |
| 2767 | IndirectFieldDecl *IndirectMember = |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 2768 | cast_or_null<IndirectFieldDecl>(FindInstantiatedDecl( |
Francois Pichet | 00eb3f9 | 2010-12-04 09:14:42 +0000 | [diff] [blame] | 2769 | Init->getMemberLocation(), |
| 2770 | Init->getIndirectMember(), TemplateArgs)); |
| 2771 | |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 2772 | if (!IndirectMember) { |
| 2773 | AnyErrors = true; |
| 2774 | New->setInvalidDecl(); |
| 2775 | continue; |
| 2776 | } |
| 2777 | |
Francois Pichet | 00eb3f9 | 2010-12-04 09:14:42 +0000 | [diff] [blame] | 2778 | NewInit = BuildMemberInitializer(IndirectMember, (Expr **)NewArgs.data(), |
| 2779 | NewArgs.size(), |
| 2780 | Init->getSourceLocation(), |
| 2781 | Init->getLParenLoc(), |
| 2782 | Init->getRParenLoc()); |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2783 | } |
| 2784 | |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 2785 | if (NewInit.isInvalid()) { |
| 2786 | AnyErrors = true; |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2787 | New->setInvalidDecl(); |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 2788 | } else { |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2789 | // FIXME: It would be nice if ASTOwningVector had a release function. |
| 2790 | NewArgs.take(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2791 | |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2792 | NewInits.push_back((MemInitTy *)NewInit.get()); |
| 2793 | } |
| 2794 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2795 | |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2796 | // Assign all the initializers to the new constructor. |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 2797 | ActOnMemInitializers(New, |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2798 | /*FIXME: ColonLoc */ |
| 2799 | SourceLocation(), |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 2800 | NewInits.data(), NewInits.size(), |
| 2801 | AnyErrors); |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2802 | } |
| 2803 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 2804 | // TODO: this could be templated if the various decl types used the |
| 2805 | // same method name. |
| 2806 | static bool isInstantiationOf(ClassTemplateDecl *Pattern, |
| 2807 | ClassTemplateDecl *Instance) { |
| 2808 | Pattern = Pattern->getCanonicalDecl(); |
| 2809 | |
| 2810 | do { |
| 2811 | Instance = Instance->getCanonicalDecl(); |
| 2812 | if (Pattern == Instance) return true; |
| 2813 | Instance = Instance->getInstantiatedFromMemberTemplate(); |
| 2814 | } while (Instance); |
| 2815 | |
| 2816 | return false; |
| 2817 | } |
| 2818 | |
Douglas Gregor | 0d69653 | 2009-09-28 06:34:35 +0000 | [diff] [blame] | 2819 | static bool isInstantiationOf(FunctionTemplateDecl *Pattern, |
| 2820 | FunctionTemplateDecl *Instance) { |
| 2821 | Pattern = Pattern->getCanonicalDecl(); |
| 2822 | |
| 2823 | do { |
| 2824 | Instance = Instance->getCanonicalDecl(); |
| 2825 | if (Pattern == Instance) return true; |
| 2826 | Instance = Instance->getInstantiatedFromMemberTemplate(); |
| 2827 | } while (Instance); |
| 2828 | |
| 2829 | return false; |
| 2830 | } |
| 2831 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2832 | static bool |
| 2833 | isInstantiationOf(ClassTemplatePartialSpecializationDecl *Pattern, |
| 2834 | ClassTemplatePartialSpecializationDecl *Instance) { |
| 2835 | Pattern |
| 2836 | = cast<ClassTemplatePartialSpecializationDecl>(Pattern->getCanonicalDecl()); |
| 2837 | do { |
| 2838 | Instance = cast<ClassTemplatePartialSpecializationDecl>( |
| 2839 | Instance->getCanonicalDecl()); |
| 2840 | if (Pattern == Instance) |
| 2841 | return true; |
| 2842 | Instance = Instance->getInstantiatedFromMember(); |
| 2843 | } while (Instance); |
| 2844 | |
| 2845 | return false; |
| 2846 | } |
| 2847 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 2848 | static bool isInstantiationOf(CXXRecordDecl *Pattern, |
| 2849 | CXXRecordDecl *Instance) { |
| 2850 | Pattern = Pattern->getCanonicalDecl(); |
| 2851 | |
| 2852 | do { |
| 2853 | Instance = Instance->getCanonicalDecl(); |
| 2854 | if (Pattern == Instance) return true; |
| 2855 | Instance = Instance->getInstantiatedFromMemberClass(); |
| 2856 | } while (Instance); |
| 2857 | |
| 2858 | return false; |
| 2859 | } |
| 2860 | |
| 2861 | static bool isInstantiationOf(FunctionDecl *Pattern, |
| 2862 | FunctionDecl *Instance) { |
| 2863 | Pattern = Pattern->getCanonicalDecl(); |
| 2864 | |
| 2865 | do { |
| 2866 | Instance = Instance->getCanonicalDecl(); |
| 2867 | if (Pattern == Instance) return true; |
| 2868 | Instance = Instance->getInstantiatedFromMemberFunction(); |
| 2869 | } while (Instance); |
| 2870 | |
| 2871 | return false; |
| 2872 | } |
| 2873 | |
| 2874 | static bool isInstantiationOf(EnumDecl *Pattern, |
| 2875 | EnumDecl *Instance) { |
| 2876 | Pattern = Pattern->getCanonicalDecl(); |
| 2877 | |
| 2878 | do { |
| 2879 | Instance = Instance->getCanonicalDecl(); |
| 2880 | if (Pattern == Instance) return true; |
| 2881 | Instance = Instance->getInstantiatedFromMemberEnum(); |
| 2882 | } while (Instance); |
| 2883 | |
| 2884 | return false; |
| 2885 | } |
| 2886 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2887 | static bool isInstantiationOf(UsingShadowDecl *Pattern, |
| 2888 | UsingShadowDecl *Instance, |
| 2889 | ASTContext &C) { |
| 2890 | return C.getInstantiatedFromUsingShadowDecl(Instance) == Pattern; |
| 2891 | } |
| 2892 | |
| 2893 | static bool isInstantiationOf(UsingDecl *Pattern, |
| 2894 | UsingDecl *Instance, |
| 2895 | ASTContext &C) { |
| 2896 | return C.getInstantiatedFromUsingDecl(Instance) == Pattern; |
| 2897 | } |
| 2898 | |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 2899 | static bool isInstantiationOf(UnresolvedUsingValueDecl *Pattern, |
| 2900 | UsingDecl *Instance, |
| 2901 | ASTContext &C) { |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2902 | return C.getInstantiatedFromUsingDecl(Instance) == Pattern; |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 2903 | } |
| 2904 | |
| 2905 | static bool isInstantiationOf(UnresolvedUsingTypenameDecl *Pattern, |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 2906 | UsingDecl *Instance, |
| 2907 | ASTContext &C) { |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2908 | return C.getInstantiatedFromUsingDecl(Instance) == Pattern; |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 2909 | } |
| 2910 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 2911 | static bool isInstantiationOfStaticDataMember(VarDecl *Pattern, |
| 2912 | VarDecl *Instance) { |
| 2913 | assert(Instance->isStaticDataMember()); |
| 2914 | |
| 2915 | Pattern = Pattern->getCanonicalDecl(); |
| 2916 | |
| 2917 | do { |
| 2918 | Instance = Instance->getCanonicalDecl(); |
| 2919 | if (Pattern == Instance) return true; |
| 2920 | Instance = Instance->getInstantiatedFromStaticDataMember(); |
| 2921 | } while (Instance); |
| 2922 | |
| 2923 | return false; |
| 2924 | } |
| 2925 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2926 | // Other is the prospective instantiation |
| 2927 | // D is the prospective pattern |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 2928 | static bool isInstantiationOf(ASTContext &Ctx, NamedDecl *D, Decl *Other) { |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 2929 | if (D->getKind() != Other->getKind()) { |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 2930 | if (UnresolvedUsingTypenameDecl *UUD |
| 2931 | = dyn_cast<UnresolvedUsingTypenameDecl>(D)) { |
| 2932 | if (UsingDecl *UD = dyn_cast<UsingDecl>(Other)) { |
| 2933 | return isInstantiationOf(UUD, UD, Ctx); |
| 2934 | } |
| 2935 | } |
| 2936 | |
| 2937 | if (UnresolvedUsingValueDecl *UUD |
| 2938 | = dyn_cast<UnresolvedUsingValueDecl>(D)) { |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 2939 | if (UsingDecl *UD = dyn_cast<UsingDecl>(Other)) { |
| 2940 | return isInstantiationOf(UUD, UD, Ctx); |
| 2941 | } |
| 2942 | } |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 2943 | |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 2944 | return false; |
| 2945 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2946 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 2947 | if (CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(Other)) |
| 2948 | return isInstantiationOf(cast<CXXRecordDecl>(D), Record); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2949 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 2950 | if (FunctionDecl *Function = dyn_cast<FunctionDecl>(Other)) |
| 2951 | return isInstantiationOf(cast<FunctionDecl>(D), Function); |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 2952 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 2953 | if (EnumDecl *Enum = dyn_cast<EnumDecl>(Other)) |
| 2954 | return isInstantiationOf(cast<EnumDecl>(D), Enum); |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 2955 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2956 | if (VarDecl *Var = dyn_cast<VarDecl>(Other)) |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 2957 | if (Var->isStaticDataMember()) |
| 2958 | return isInstantiationOfStaticDataMember(cast<VarDecl>(D), Var); |
| 2959 | |
| 2960 | if (ClassTemplateDecl *Temp = dyn_cast<ClassTemplateDecl>(Other)) |
| 2961 | return isInstantiationOf(cast<ClassTemplateDecl>(D), Temp); |
Douglas Gregor | a5bf7f1 | 2009-08-28 22:03:51 +0000 | [diff] [blame] | 2962 | |
Douglas Gregor | 0d69653 | 2009-09-28 06:34:35 +0000 | [diff] [blame] | 2963 | if (FunctionTemplateDecl *Temp = dyn_cast<FunctionTemplateDecl>(Other)) |
| 2964 | return isInstantiationOf(cast<FunctionTemplateDecl>(D), Temp); |
| 2965 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2966 | if (ClassTemplatePartialSpecializationDecl *PartialSpec |
| 2967 | = dyn_cast<ClassTemplatePartialSpecializationDecl>(Other)) |
| 2968 | return isInstantiationOf(cast<ClassTemplatePartialSpecializationDecl>(D), |
| 2969 | PartialSpec); |
| 2970 | |
Anders Carlsson | d8b285f | 2009-09-01 04:26:58 +0000 | [diff] [blame] | 2971 | if (FieldDecl *Field = dyn_cast<FieldDecl>(Other)) { |
| 2972 | if (!Field->getDeclName()) { |
| 2973 | // This is an unnamed field. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2974 | return Ctx.getInstantiatedFromUnnamedFieldDecl(Field) == |
Anders Carlsson | d8b285f | 2009-09-01 04:26:58 +0000 | [diff] [blame] | 2975 | cast<FieldDecl>(D); |
| 2976 | } |
| 2977 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2978 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2979 | if (UsingDecl *Using = dyn_cast<UsingDecl>(Other)) |
| 2980 | return isInstantiationOf(cast<UsingDecl>(D), Using, Ctx); |
| 2981 | |
| 2982 | if (UsingShadowDecl *Shadow = dyn_cast<UsingShadowDecl>(Other)) |
| 2983 | return isInstantiationOf(cast<UsingShadowDecl>(D), Shadow, Ctx); |
| 2984 | |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 2985 | return D->getDeclName() && isa<NamedDecl>(Other) && |
| 2986 | D->getDeclName() == cast<NamedDecl>(Other)->getDeclName(); |
| 2987 | } |
| 2988 | |
| 2989 | template<typename ForwardIterator> |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2990 | static NamedDecl *findInstantiationOf(ASTContext &Ctx, |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 2991 | NamedDecl *D, |
| 2992 | ForwardIterator first, |
| 2993 | ForwardIterator last) { |
| 2994 | for (; first != last; ++first) |
| 2995 | if (isInstantiationOf(Ctx, D, *first)) |
| 2996 | return cast<NamedDecl>(*first); |
| 2997 | |
| 2998 | return 0; |
| 2999 | } |
| 3000 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 3001 | /// \brief Finds the instantiation of the given declaration context |
| 3002 | /// within the current instantiation. |
| 3003 | /// |
| 3004 | /// \returns NULL if there was an error |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3005 | DeclContext *Sema::FindInstantiatedContext(SourceLocation Loc, DeclContext* DC, |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3006 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 3007 | if (NamedDecl *D = dyn_cast<NamedDecl>(DC)) { |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3008 | Decl* ID = FindInstantiatedDecl(Loc, D, TemplateArgs); |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 3009 | return cast_or_null<DeclContext>(ID); |
| 3010 | } else return DC; |
| 3011 | } |
| 3012 | |
Douglas Gregor | ed961e7 | 2009-05-27 17:54:46 +0000 | [diff] [blame] | 3013 | /// \brief Find the instantiation of the given declaration within the |
| 3014 | /// current instantiation. |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3015 | /// |
| 3016 | /// This routine is intended to be used when \p D is a declaration |
| 3017 | /// referenced from within a template, that needs to mapped into the |
| 3018 | /// corresponding declaration within an instantiation. For example, |
| 3019 | /// given: |
| 3020 | /// |
| 3021 | /// \code |
| 3022 | /// template<typename T> |
| 3023 | /// struct X { |
| 3024 | /// enum Kind { |
| 3025 | /// KnownValue = sizeof(T) |
| 3026 | /// }; |
| 3027 | /// |
| 3028 | /// bool getKind() const { return KnownValue; } |
| 3029 | /// }; |
| 3030 | /// |
| 3031 | /// template struct X<int>; |
| 3032 | /// \endcode |
| 3033 | /// |
| 3034 | /// In the instantiation of X<int>::getKind(), we need to map the |
| 3035 | /// EnumConstantDecl for KnownValue (which refers to |
| 3036 | /// X<T>::<Kind>::KnownValue) to its instantiation |
Douglas Gregor | ed961e7 | 2009-05-27 17:54:46 +0000 | [diff] [blame] | 3037 | /// (X<int>::<Kind>::KnownValue). InstantiateCurrentDeclRef() performs |
| 3038 | /// this mapping from within the instantiation of X<int>. |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3039 | NamedDecl *Sema::FindInstantiatedDecl(SourceLocation Loc, NamedDecl *D, |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3040 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3041 | DeclContext *ParentDC = D->getDeclContext(); |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 3042 | if (isa<ParmVarDecl>(D) || isa<NonTypeTemplateParmDecl>(D) || |
Douglas Gregor | 6d3e627 | 2010-02-05 19:54:12 +0000 | [diff] [blame] | 3043 | isa<TemplateTypeParmDecl>(D) || isa<TemplateTemplateParmDecl>(D) || |
John McCall | 7667245 | 2010-08-19 23:06:02 +0000 | [diff] [blame] | 3044 | (ParentDC->isFunctionOrMethod() && ParentDC->isDependentContext())) { |
Douglas Gregor | 2bba76b | 2009-05-27 17:07:49 +0000 | [diff] [blame] | 3045 | // D is a local of some kind. Look into the map of local |
| 3046 | // declarations to their instantiations. |
Chris Lattner | d8e5499 | 2011-02-17 19:47:42 +0000 | [diff] [blame] | 3047 | typedef LocalInstantiationScope::DeclArgumentPack DeclArgumentPack; |
| 3048 | llvm::PointerUnion<Decl *, DeclArgumentPack *> *Found |
| 3049 | = CurrentInstantiationScope->findInstantiationOf(D); |
Chris Lattner | d8e5499 | 2011-02-17 19:47:42 +0000 | [diff] [blame] | 3050 | |
Chris Lattner | 57ad378 | 2011-02-17 20:34:02 +0000 | [diff] [blame] | 3051 | if (Found) { |
| 3052 | if (Decl *FD = Found->dyn_cast<Decl *>()) |
| 3053 | return cast<NamedDecl>(FD); |
| 3054 | |
| 3055 | unsigned PackIdx = ArgumentPackSubstitutionIndex; |
| 3056 | return cast<NamedDecl>((*Found->get<DeclArgumentPack *>())[PackIdx]); |
| 3057 | } |
| 3058 | |
| 3059 | // If we didn't find the decl, then we must have a label decl that hasn't |
| 3060 | // been found yet. Lazily instantiate it and return it now. |
| 3061 | assert(isa<LabelDecl>(D)); |
Chris Lattner | d8e5499 | 2011-02-17 19:47:42 +0000 | [diff] [blame] | 3062 | |
Chris Lattner | 57ad378 | 2011-02-17 20:34:02 +0000 | [diff] [blame] | 3063 | Decl *Inst = SubstDecl(D, CurContext, TemplateArgs); |
| 3064 | assert(Inst && "Failed to instantiate label??"); |
| 3065 | |
| 3066 | CurrentInstantiationScope->InstantiatedLocal(D, Inst); |
| 3067 | return cast<LabelDecl>(Inst); |
Douglas Gregor | 2bba76b | 2009-05-27 17:07:49 +0000 | [diff] [blame] | 3068 | } |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3069 | |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3070 | if (CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(D)) { |
| 3071 | if (!Record->isDependentContext()) |
| 3072 | return D; |
| 3073 | |
Douglas Gregor | 8b013bd | 2010-02-05 22:40:03 +0000 | [diff] [blame] | 3074 | // If the RecordDecl is actually the injected-class-name or a |
| 3075 | // "templated" declaration for a class template, class template |
| 3076 | // partial specialization, or a member class of a class template, |
| 3077 | // substitute into the injected-class-name of the class template |
| 3078 | // or partial specialization to find the new DeclContext. |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3079 | QualType T; |
| 3080 | ClassTemplateDecl *ClassTemplate = Record->getDescribedClassTemplate(); |
| 3081 | |
| 3082 | if (ClassTemplate) { |
Douglas Gregor | 24bae92 | 2010-07-08 18:37:38 +0000 | [diff] [blame] | 3083 | T = ClassTemplate->getInjectedClassNameSpecialization(); |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3084 | } else if (ClassTemplatePartialSpecializationDecl *PartialSpec |
| 3085 | = dyn_cast<ClassTemplatePartialSpecializationDecl>(Record)) { |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3086 | ClassTemplate = PartialSpec->getSpecializedTemplate(); |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 3087 | |
| 3088 | // If we call SubstType with an InjectedClassNameType here we |
| 3089 | // can end up in an infinite loop. |
| 3090 | T = Context.getTypeDeclType(Record); |
| 3091 | assert(isa<InjectedClassNameType>(T) && |
| 3092 | "type of partial specialization is not an InjectedClassNameType"); |
John McCall | 31f17ec | 2010-04-27 00:57:59 +0000 | [diff] [blame] | 3093 | T = cast<InjectedClassNameType>(T)->getInjectedSpecializationType(); |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 3094 | } |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3095 | |
| 3096 | if (!T.isNull()) { |
Douglas Gregor | 8b013bd | 2010-02-05 22:40:03 +0000 | [diff] [blame] | 3097 | // Substitute into the injected-class-name to get the type |
| 3098 | // corresponding to the instantiation we want, which may also be |
| 3099 | // the current instantiation (if we're in a template |
| 3100 | // definition). This substitution should never fail, since we |
| 3101 | // know we can instantiate the injected-class-name or we |
| 3102 | // wouldn't have gotten to the injected-class-name! |
| 3103 | |
| 3104 | // FIXME: Can we use the CurrentInstantiationScope to avoid this |
| 3105 | // extra instantiation in the common case? |
Douglas Gregor | b46ae39 | 2011-03-03 21:48:55 +0000 | [diff] [blame] | 3106 | T = SubstType(T, TemplateArgs, Loc, DeclarationName()); |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3107 | assert(!T.isNull() && "Instantiation of injected-class-name cannot fail."); |
| 3108 | |
| 3109 | if (!T->isDependentType()) { |
| 3110 | assert(T->isRecordType() && "Instantiation must produce a record type"); |
| 3111 | return T->getAs<RecordType>()->getDecl(); |
| 3112 | } |
| 3113 | |
Douglas Gregor | 8b013bd | 2010-02-05 22:40:03 +0000 | [diff] [blame] | 3114 | // We are performing "partial" template instantiation to create |
| 3115 | // the member declarations for the members of a class template |
| 3116 | // specialization. Therefore, D is actually referring to something |
| 3117 | // in the current instantiation. Look through the current |
| 3118 | // context, which contains actual instantiations, to find the |
| 3119 | // instantiation of the "current instantiation" that D refers |
| 3120 | // to. |
| 3121 | bool SawNonDependentContext = false; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3122 | for (DeclContext *DC = CurContext; !DC->isFileContext(); |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3123 | DC = DC->getParent()) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3124 | if (ClassTemplateSpecializationDecl *Spec |
Douglas Gregor | 8b013bd | 2010-02-05 22:40:03 +0000 | [diff] [blame] | 3125 | = dyn_cast<ClassTemplateSpecializationDecl>(DC)) |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3126 | if (isInstantiationOf(ClassTemplate, |
| 3127 | Spec->getSpecializedTemplate())) |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3128 | return Spec; |
Douglas Gregor | 8b013bd | 2010-02-05 22:40:03 +0000 | [diff] [blame] | 3129 | |
| 3130 | if (!DC->isDependentContext()) |
| 3131 | SawNonDependentContext = true; |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3132 | } |
| 3133 | |
Douglas Gregor | 8b013bd | 2010-02-05 22:40:03 +0000 | [diff] [blame] | 3134 | // We're performing "instantiation" of a member of the current |
| 3135 | // instantiation while we are type-checking the |
| 3136 | // definition. Compute the declaration context and return that. |
| 3137 | assert(!SawNonDependentContext && |
| 3138 | "No dependent context while instantiating record"); |
| 3139 | DeclContext *DC = computeDeclContext(T); |
| 3140 | assert(DC && |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3141 | "Unable to find declaration for the current instantiation"); |
Douglas Gregor | 8b013bd | 2010-02-05 22:40:03 +0000 | [diff] [blame] | 3142 | return cast<CXXRecordDecl>(DC); |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3143 | } |
Douglas Gregor | 8b013bd | 2010-02-05 22:40:03 +0000 | [diff] [blame] | 3144 | |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3145 | // Fall through to deal with other dependent record types (e.g., |
| 3146 | // anonymous unions in class templates). |
| 3147 | } |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3148 | |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3149 | if (!ParentDC->isDependentContext()) |
| 3150 | return D; |
| 3151 | |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3152 | ParentDC = FindInstantiatedContext(Loc, ParentDC, TemplateArgs); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3153 | if (!ParentDC) |
Douglas Gregor | 44c7384 | 2009-09-01 17:53:10 +0000 | [diff] [blame] | 3154 | return 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3155 | |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3156 | if (ParentDC != D->getDeclContext()) { |
| 3157 | // We performed some kind of instantiation in the parent context, |
| 3158 | // so now we need to look into the instantiated parent context to |
| 3159 | // find the instantiation of the declaration D. |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3160 | |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 3161 | // If our context used to be dependent, we may need to instantiate |
| 3162 | // it before performing lookup into that context. |
Douglas Gregor | eff1dbe | 2011-03-06 20:12:45 +0000 | [diff] [blame] | 3163 | bool IsBeingInstantiated = false; |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 3164 | if (CXXRecordDecl *Spec = dyn_cast<CXXRecordDecl>(ParentDC)) { |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3165 | if (!Spec->isDependentContext()) { |
| 3166 | QualType T = Context.getTypeDeclType(Spec); |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 3167 | const RecordType *Tag = T->getAs<RecordType>(); |
| 3168 | assert(Tag && "type of non-dependent record is not a RecordType"); |
Douglas Gregor | eff1dbe | 2011-03-06 20:12:45 +0000 | [diff] [blame] | 3169 | if (Tag->isBeingDefined()) |
| 3170 | IsBeingInstantiated = true; |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 3171 | if (!Tag->isBeingDefined() && |
| 3172 | RequireCompleteType(Loc, T, diag::err_incomplete_type)) |
| 3173 | return 0; |
Douglas Gregor | a43064c | 2010-11-05 23:22:45 +0000 | [diff] [blame] | 3174 | |
| 3175 | ParentDC = Tag->getDecl(); |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3176 | } |
| 3177 | } |
| 3178 | |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3179 | NamedDecl *Result = 0; |
| 3180 | if (D->getDeclName()) { |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 3181 | DeclContext::lookup_result Found = ParentDC->lookup(D->getDeclName()); |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3182 | Result = findInstantiationOf(Context, D, Found.first, Found.second); |
| 3183 | } else { |
| 3184 | // Since we don't have a name for the entity we're looking for, |
| 3185 | // our only option is to walk through all of the declarations to |
| 3186 | // find that name. This will occur in a few cases: |
| 3187 | // |
| 3188 | // - anonymous struct/union within a template |
| 3189 | // - unnamed class/struct/union/enum within a template |
| 3190 | // |
| 3191 | // FIXME: Find a better way to find these instantiations! |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3192 | Result = findInstantiationOf(Context, D, |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 3193 | ParentDC->decls_begin(), |
| 3194 | ParentDC->decls_end()); |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3195 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3196 | |
Douglas Gregor | eff1dbe | 2011-03-06 20:12:45 +0000 | [diff] [blame] | 3197 | if (!Result) { |
| 3198 | if (isa<UsingShadowDecl>(D)) { |
| 3199 | // UsingShadowDecls can instantiate to nothing because of using hiding. |
| 3200 | } else if (Diags.hasErrorOccurred()) { |
| 3201 | // We've already complained about something, so most likely this |
| 3202 | // declaration failed to instantiate. There's no point in complaining |
| 3203 | // further, since this is normal in invalid code. |
| 3204 | } else if (IsBeingInstantiated) { |
| 3205 | // The class in which this member exists is currently being |
| 3206 | // instantiated, and we haven't gotten around to instantiating this |
| 3207 | // member yet. This can happen when the code uses forward declarations |
| 3208 | // of member classes, and introduces ordering dependencies via |
| 3209 | // template instantiation. |
| 3210 | Diag(Loc, diag::err_member_not_yet_instantiated) |
| 3211 | << D->getDeclName() |
| 3212 | << Context.getTypeDeclType(cast<CXXRecordDecl>(ParentDC)); |
| 3213 | Diag(D->getLocation(), diag::note_non_instantiated_member_here); |
| 3214 | } else { |
| 3215 | // We should have found something, but didn't. |
| 3216 | llvm_unreachable("Unable to find instantiation of declaration!"); |
| 3217 | } |
| 3218 | } |
| 3219 | |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3220 | D = Result; |
| 3221 | } |
| 3222 | |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3223 | return D; |
| 3224 | } |
Douglas Gregor | d7f37bf | 2009-06-22 23:06:13 +0000 | [diff] [blame] | 3225 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3226 | /// \brief Performs template instantiation for all implicit template |
Douglas Gregor | d7f37bf | 2009-06-22 23:06:13 +0000 | [diff] [blame] | 3227 | /// instantiations we have seen until this point. |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 3228 | void Sema::PerformPendingInstantiations(bool LocalOnly) { |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 3229 | while (!PendingLocalImplicitInstantiations.empty() || |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 3230 | (!LocalOnly && !PendingInstantiations.empty())) { |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 3231 | PendingImplicitInstantiation Inst; |
| 3232 | |
| 3233 | if (PendingLocalImplicitInstantiations.empty()) { |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 3234 | Inst = PendingInstantiations.front(); |
| 3235 | PendingInstantiations.pop_front(); |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 3236 | } else { |
| 3237 | Inst = PendingLocalImplicitInstantiations.front(); |
| 3238 | PendingLocalImplicitInstantiations.pop_front(); |
| 3239 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3240 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3241 | // Instantiate function definitions |
| 3242 | if (FunctionDecl *Function = dyn_cast<FunctionDecl>(Inst.first)) { |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 3243 | PrettyDeclStackTraceEntry CrashInfo(*this, Function, SourceLocation(), |
| 3244 | "instantiating function definition"); |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 3245 | bool DefinitionRequired = Function->getTemplateSpecializationKind() == |
| 3246 | TSK_ExplicitInstantiationDefinition; |
| 3247 | InstantiateFunctionDefinition(/*FIXME:*/Inst.second, Function, true, |
| 3248 | DefinitionRequired); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3249 | continue; |
| 3250 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3251 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3252 | // Instantiate static data member definitions. |
| 3253 | VarDecl *Var = cast<VarDecl>(Inst.first); |
| 3254 | assert(Var->isStaticDataMember() && "Not a static data member?"); |
Anders Carlsson | c17fb7b | 2009-09-01 05:12:24 +0000 | [diff] [blame] | 3255 | |
Chandler Carruth | 291b441 | 2010-02-13 10:17:50 +0000 | [diff] [blame] | 3256 | // Don't try to instantiate declarations if the most recent redeclaration |
| 3257 | // is invalid. |
| 3258 | if (Var->getMostRecentDeclaration()->isInvalidDecl()) |
| 3259 | continue; |
| 3260 | |
| 3261 | // Check if the most recent declaration has changed the specialization kind |
| 3262 | // and removed the need for implicit instantiation. |
| 3263 | switch (Var->getMostRecentDeclaration()->getTemplateSpecializationKind()) { |
| 3264 | case TSK_Undeclared: |
| 3265 | assert(false && "Cannot instantitiate an undeclared specialization."); |
| 3266 | case TSK_ExplicitInstantiationDeclaration: |
Chandler Carruth | 291b441 | 2010-02-13 10:17:50 +0000 | [diff] [blame] | 3267 | case TSK_ExplicitSpecialization: |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 3268 | continue; // No longer need to instantiate this type. |
| 3269 | case TSK_ExplicitInstantiationDefinition: |
| 3270 | // We only need an instantiation if the pending instantiation *is* the |
| 3271 | // explicit instantiation. |
| 3272 | if (Var != Var->getMostRecentDeclaration()) continue; |
Chandler Carruth | 291b441 | 2010-02-13 10:17:50 +0000 | [diff] [blame] | 3273 | case TSK_ImplicitInstantiation: |
| 3274 | break; |
| 3275 | } |
| 3276 | |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 3277 | PrettyDeclStackTraceEntry CrashInfo(*this, Var, Var->getLocation(), |
| 3278 | "instantiating static data member " |
| 3279 | "definition"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3280 | |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 3281 | bool DefinitionRequired = Var->getTemplateSpecializationKind() == |
| 3282 | TSK_ExplicitInstantiationDefinition; |
| 3283 | InstantiateStaticDataMemberDefinition(/*FIXME:*/Inst.second, Var, true, |
| 3284 | DefinitionRequired); |
Douglas Gregor | d7f37bf | 2009-06-22 23:06:13 +0000 | [diff] [blame] | 3285 | } |
| 3286 | } |
John McCall | 0c01d18 | 2010-03-24 05:22:00 +0000 | [diff] [blame] | 3287 | |
| 3288 | void Sema::PerformDependentDiagnostics(const DeclContext *Pattern, |
| 3289 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
| 3290 | for (DeclContext::ddiag_iterator I = Pattern->ddiag_begin(), |
| 3291 | E = Pattern->ddiag_end(); I != E; ++I) { |
| 3292 | DependentDiagnostic *DD = *I; |
| 3293 | |
| 3294 | switch (DD->getKind()) { |
| 3295 | case DependentDiagnostic::Access: |
| 3296 | HandleDependentAccessCheck(*DD, TemplateArgs); |
| 3297 | break; |
| 3298 | } |
| 3299 | } |
| 3300 | } |