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; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 32 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 33 | NestedNameSpecifierLoc NewQualifierLoc |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 34 | = SemaRef.SubstNestedNameSpecifierLoc(OldDecl->getQualifierLoc(), |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 35 | TemplateArgs); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 36 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 37 | if (!NewQualifierLoc) |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 38 | return true; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 39 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 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; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 48 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 49 | NestedNameSpecifierLoc NewQualifierLoc |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 50 | = SemaRef.SubstNestedNameSpecifierLoc(OldDecl->getQualifierLoc(), |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 51 | TemplateArgs); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 52 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 53 | if (!NewQualifierLoc) |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 54 | return true; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 55 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 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, |
Rafael Espindola | 19f74ac | 2011-07-06 15:46:09 +0000 | [diff] [blame] | 62 | const 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, |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 82 | Aligned->getLocation(), |
Nick Lewycky | 7663f39 | 2010-11-20 01:29:55 +0000 | [diff] [blame] | 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) { |
David Blaikie | b219cfc | 2011-09-23 05:06:16 +0000 | [diff] [blame] | 99 | llvm_unreachable("Translation units cannot be instantiated"); |
Douglas Gregor | 4f722be | 2009-03-25 15:45:12 +0000 | [diff] [blame] | 100 | } |
| 101 | |
| 102 | Decl * |
Chris Lattner | 57ad378 | 2011-02-17 20:34:02 +0000 | [diff] [blame] | 103 | TemplateDeclInstantiator::VisitLabelDecl(LabelDecl *D) { |
| 104 | LabelDecl *Inst = LabelDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
| 105 | D->getIdentifier()); |
| 106 | Owner->addDecl(Inst); |
| 107 | return Inst; |
| 108 | } |
| 109 | |
| 110 | Decl * |
Douglas Gregor | 4f722be | 2009-03-25 15:45:12 +0000 | [diff] [blame] | 111 | TemplateDeclInstantiator::VisitNamespaceDecl(NamespaceDecl *D) { |
David Blaikie | b219cfc | 2011-09-23 05:06:16 +0000 | [diff] [blame] | 112 | llvm_unreachable("Namespaces cannot be instantiated"); |
Douglas Gregor | 4f722be | 2009-03-25 15:45:12 +0000 | [diff] [blame] | 113 | } |
| 114 | |
John McCall | 3dbd3d5 | 2010-02-16 06:53:13 +0000 | [diff] [blame] | 115 | Decl * |
| 116 | TemplateDeclInstantiator::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { |
| 117 | NamespaceAliasDecl *Inst |
| 118 | = NamespaceAliasDecl::Create(SemaRef.Context, Owner, |
| 119 | D->getNamespaceLoc(), |
| 120 | D->getAliasLoc(), |
Douglas Gregor | 0cfaf6a | 2011-02-25 17:08:07 +0000 | [diff] [blame] | 121 | D->getIdentifier(), |
| 122 | D->getQualifierLoc(), |
John McCall | 3dbd3d5 | 2010-02-16 06:53:13 +0000 | [diff] [blame] | 123 | D->getTargetNameLoc(), |
| 124 | D->getNamespace()); |
| 125 | Owner->addDecl(Inst); |
| 126 | return Inst; |
| 127 | } |
| 128 | |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 129 | Decl *TemplateDeclInstantiator::InstantiateTypedefNameDecl(TypedefNameDecl *D, |
| 130 | bool IsTypeAlias) { |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 131 | bool Invalid = false; |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 132 | TypeSourceInfo *DI = D->getTypeSourceInfo(); |
Douglas Gregor | 561f812 | 2011-07-01 01:22:09 +0000 | [diff] [blame] | 133 | if (DI->getType()->isInstantiationDependentType() || |
Douglas Gregor | 836adf6 | 2010-05-24 17:22:01 +0000 | [diff] [blame] | 134 | DI->getType()->isVariablyModifiedType()) { |
John McCall | ba6a9bd | 2009-10-24 08:00:42 +0000 | [diff] [blame] | 135 | DI = SemaRef.SubstType(DI, TemplateArgs, |
| 136 | D->getLocation(), D->getDeclName()); |
| 137 | if (!DI) { |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 138 | Invalid = true; |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 139 | DI = SemaRef.Context.getTrivialTypeSourceInfo(SemaRef.Context.IntTy); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 140 | } |
Douglas Gregor | b4eeaff | 2010-05-07 23:12:07 +0000 | [diff] [blame] | 141 | } else { |
| 142 | SemaRef.MarkDeclarationsReferencedInType(D->getLocation(), DI->getType()); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 143 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 144 | |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 145 | // Create the new typedef |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 146 | TypedefNameDecl *Typedef; |
| 147 | if (IsTypeAlias) |
| 148 | Typedef = TypeAliasDecl::Create(SemaRef.Context, Owner, D->getLocStart(), |
| 149 | D->getLocation(), D->getIdentifier(), DI); |
| 150 | else |
| 151 | Typedef = TypedefDecl::Create(SemaRef.Context, Owner, D->getLocStart(), |
| 152 | D->getLocation(), D->getIdentifier(), DI); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 153 | if (Invalid) |
| 154 | Typedef->setInvalidDecl(); |
| 155 | |
John McCall | cde5a40 | 2011-02-01 08:20:08 +0000 | [diff] [blame] | 156 | // If the old typedef was the name for linkage purposes of an anonymous |
| 157 | // tag decl, re-establish that relationship for the new typedef. |
| 158 | if (const TagType *oldTagType = D->getUnderlyingType()->getAs<TagType>()) { |
| 159 | TagDecl *oldTag = oldTagType->getDecl(); |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 160 | if (oldTag->getTypedefNameForAnonDecl() == D) { |
John McCall | cde5a40 | 2011-02-01 08:20:08 +0000 | [diff] [blame] | 161 | TagDecl *newTag = DI->getType()->castAs<TagType>()->getDecl(); |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 162 | assert(!newTag->getIdentifier() && !newTag->getTypedefNameForAnonDecl()); |
| 163 | newTag->setTypedefNameForAnonDecl(Typedef); |
John McCall | cde5a40 | 2011-02-01 08:20:08 +0000 | [diff] [blame] | 164 | } |
Douglas Gregor | d57a38e | 2010-04-23 16:25:07 +0000 | [diff] [blame] | 165 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 166 | |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 167 | if (TypedefNameDecl *Prev = D->getPreviousDeclaration()) { |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 168 | NamedDecl *InstPrev = SemaRef.FindInstantiatedDecl(D->getLocation(), Prev, |
| 169 | TemplateArgs); |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 170 | if (!InstPrev) |
| 171 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 172 | |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 173 | Typedef->setPreviousDeclaration(cast<TypedefNameDecl>(InstPrev)); |
John McCall | 5126fd0 | 2009-12-30 00:31:22 +0000 | [diff] [blame] | 174 | } |
| 175 | |
John McCall | 1d8d1cc | 2010-08-01 02:01:53 +0000 | [diff] [blame] | 176 | SemaRef.InstantiateAttrs(TemplateArgs, D, Typedef); |
Douglas Gregor | d57a38e | 2010-04-23 16:25:07 +0000 | [diff] [blame] | 177 | |
John McCall | 46460a6 | 2010-01-20 21:53:11 +0000 | [diff] [blame] | 178 | Typedef->setAccess(D->getAccess()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 179 | |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 180 | return Typedef; |
| 181 | } |
| 182 | |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 183 | Decl *TemplateDeclInstantiator::VisitTypedefDecl(TypedefDecl *D) { |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 184 | Decl *Typedef = InstantiateTypedefNameDecl(D, /*IsTypeAlias=*/false); |
| 185 | Owner->addDecl(Typedef); |
| 186 | return Typedef; |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 187 | } |
| 188 | |
| 189 | Decl *TemplateDeclInstantiator::VisitTypeAliasDecl(TypeAliasDecl *D) { |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 190 | Decl *Typedef = InstantiateTypedefNameDecl(D, /*IsTypeAlias=*/true); |
| 191 | Owner->addDecl(Typedef); |
| 192 | return Typedef; |
| 193 | } |
| 194 | |
| 195 | Decl * |
| 196 | TemplateDeclInstantiator::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) { |
| 197 | // Create a local instantiation scope for this type alias template, which |
| 198 | // will contain the instantiations of the template parameters. |
| 199 | LocalInstantiationScope Scope(SemaRef); |
| 200 | |
| 201 | TemplateParameterList *TempParams = D->getTemplateParameters(); |
| 202 | TemplateParameterList *InstParams = SubstTemplateParams(TempParams); |
| 203 | if (!InstParams) |
| 204 | return 0; |
| 205 | |
| 206 | TypeAliasDecl *Pattern = D->getTemplatedDecl(); |
| 207 | |
| 208 | TypeAliasTemplateDecl *PrevAliasTemplate = 0; |
| 209 | if (Pattern->getPreviousDeclaration()) { |
| 210 | DeclContext::lookup_result Found = Owner->lookup(Pattern->getDeclName()); |
| 211 | if (Found.first != Found.second) { |
| 212 | PrevAliasTemplate = dyn_cast<TypeAliasTemplateDecl>(*Found.first); |
| 213 | } |
| 214 | } |
| 215 | |
| 216 | TypeAliasDecl *AliasInst = cast_or_null<TypeAliasDecl>( |
| 217 | InstantiateTypedefNameDecl(Pattern, /*IsTypeAlias=*/true)); |
| 218 | if (!AliasInst) |
| 219 | return 0; |
| 220 | |
| 221 | TypeAliasTemplateDecl *Inst |
| 222 | = TypeAliasTemplateDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
| 223 | D->getDeclName(), InstParams, AliasInst); |
| 224 | if (PrevAliasTemplate) |
| 225 | Inst->setPreviousDeclaration(PrevAliasTemplate); |
| 226 | |
| 227 | Inst->setAccess(D->getAccess()); |
| 228 | |
| 229 | if (!PrevAliasTemplate) |
| 230 | Inst->setInstantiatedFromMemberTemplate(D); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 231 | |
Richard Smith | 3e4c6c4 | 2011-05-05 21:57:07 +0000 | [diff] [blame] | 232 | Owner->addDecl(Inst); |
| 233 | |
| 234 | return Inst; |
Richard Smith | 162e1c1 | 2011-04-15 14:24:37 +0000 | [diff] [blame] | 235 | } |
| 236 | |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 237 | /// \brief Instantiate an initializer, breaking it into separate |
| 238 | /// initialization arguments. |
| 239 | /// |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 240 | /// \param Init The initializer to instantiate. |
| 241 | /// |
| 242 | /// \param TemplateArgs Template arguments to be substituted into the |
| 243 | /// initializer. |
| 244 | /// |
| 245 | /// \param NewArgs Will be filled in with the instantiation arguments. |
| 246 | /// |
| 247 | /// \returns true if an error occurred, false otherwise |
Richard Smith | 0ff6f8f | 2011-07-20 00:12:52 +0000 | [diff] [blame] | 248 | bool Sema::InstantiateInitializer(Expr *Init, |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 249 | const MultiLevelTemplateArgumentList &TemplateArgs, |
Richard Smith | 0ff6f8f | 2011-07-20 00:12:52 +0000 | [diff] [blame] | 250 | SourceLocation &LParenLoc, |
| 251 | ASTOwningVector<Expr*> &NewArgs, |
| 252 | SourceLocation &RParenLoc) { |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 253 | NewArgs.clear(); |
| 254 | LParenLoc = SourceLocation(); |
| 255 | RParenLoc = SourceLocation(); |
| 256 | |
| 257 | if (!Init) |
| 258 | return false; |
| 259 | |
John McCall | 4765fa0 | 2010-12-06 08:20:24 +0000 | [diff] [blame] | 260 | if (ExprWithCleanups *ExprTemp = dyn_cast<ExprWithCleanups>(Init)) |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 261 | Init = ExprTemp->getSubExpr(); |
| 262 | |
| 263 | while (CXXBindTemporaryExpr *Binder = dyn_cast<CXXBindTemporaryExpr>(Init)) |
| 264 | Init = Binder->getSubExpr(); |
| 265 | |
| 266 | if (ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(Init)) |
| 267 | Init = ICE->getSubExprAsWritten(); |
| 268 | |
| 269 | if (ParenListExpr *ParenList = dyn_cast<ParenListExpr>(Init)) { |
| 270 | LParenLoc = ParenList->getLParenLoc(); |
| 271 | RParenLoc = ParenList->getRParenLoc(); |
Richard Smith | 0ff6f8f | 2011-07-20 00:12:52 +0000 | [diff] [blame] | 272 | return SubstExprs(ParenList->getExprs(), ParenList->getNumExprs(), |
| 273 | true, TemplateArgs, NewArgs); |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 274 | } |
| 275 | |
| 276 | if (CXXConstructExpr *Construct = dyn_cast<CXXConstructExpr>(Init)) { |
Douglas Gregor | 28329e5 | 2010-03-24 21:22:47 +0000 | [diff] [blame] | 277 | if (!isa<CXXTemporaryObjectExpr>(Construct)) { |
Richard Smith | 0ff6f8f | 2011-07-20 00:12:52 +0000 | [diff] [blame] | 278 | if (SubstExprs(Construct->getArgs(), Construct->getNumArgs(), true, |
| 279 | TemplateArgs, NewArgs)) |
Douglas Gregor | 28329e5 | 2010-03-24 21:22:47 +0000 | [diff] [blame] | 280 | return true; |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 281 | |
Douglas Gregor | 28329e5 | 2010-03-24 21:22:47 +0000 | [diff] [blame] | 282 | // FIXME: Fake locations! |
Richard Smith | 0ff6f8f | 2011-07-20 00:12:52 +0000 | [diff] [blame] | 283 | LParenLoc = PP.getLocForEndOfToken(Init->getLocStart()); |
Douglas Gregor | a1a0478 | 2010-09-09 16:33:13 +0000 | [diff] [blame] | 284 | RParenLoc = LParenLoc; |
Douglas Gregor | 28329e5 | 2010-03-24 21:22:47 +0000 | [diff] [blame] | 285 | return false; |
| 286 | } |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 287 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 288 | |
Richard Smith | 0ff6f8f | 2011-07-20 00:12:52 +0000 | [diff] [blame] | 289 | ExprResult Result = SubstExpr(Init, TemplateArgs); |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 290 | if (Result.isInvalid()) |
| 291 | return true; |
| 292 | |
| 293 | NewArgs.push_back(Result.takeAs<Expr>()); |
| 294 | return false; |
| 295 | } |
| 296 | |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 297 | Decl *TemplateDeclInstantiator::VisitVarDecl(VarDecl *D) { |
Douglas Gregor | 9901c57 | 2010-05-21 00:31:19 +0000 | [diff] [blame] | 298 | // If this is the variable for an anonymous struct or union, |
| 299 | // instantiate the anonymous struct/union type first. |
| 300 | if (const RecordType *RecordTy = D->getType()->getAs<RecordType>()) |
| 301 | if (RecordTy->getDecl()->isAnonymousStructOrUnion()) |
| 302 | if (!VisitCXXRecordDecl(cast<CXXRecordDecl>(RecordTy->getDecl()))) |
| 303 | return 0; |
| 304 | |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 305 | // Do substitution on the type of the declaration |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 306 | TypeSourceInfo *DI = SemaRef.SubstType(D->getTypeSourceInfo(), |
John McCall | 0a5fa06 | 2009-10-21 02:39:02 +0000 | [diff] [blame] | 307 | TemplateArgs, |
| 308 | D->getTypeSpecStartLoc(), |
| 309 | D->getDeclName()); |
| 310 | if (!DI) |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 311 | return 0; |
| 312 | |
Douglas Gregor | c6dbc3f | 2010-09-12 07:37:24 +0000 | [diff] [blame] | 313 | if (DI->getType()->isFunctionType()) { |
| 314 | SemaRef.Diag(D->getLocation(), diag::err_variable_instantiates_to_function) |
| 315 | << D->isStaticDataMember() << DI->getType(); |
| 316 | return 0; |
| 317 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 318 | |
Douglas Gregor | b9f1b8d | 2009-05-15 00:01:03 +0000 | [diff] [blame] | 319 | // Build the instantiated declaration |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 320 | VarDecl *Var = VarDecl::Create(SemaRef.Context, Owner, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 321 | D->getInnerLocStart(), |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 322 | D->getLocation(), D->getIdentifier(), |
John McCall | 0a5fa06 | 2009-10-21 02:39:02 +0000 | [diff] [blame] | 323 | DI->getType(), DI, |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 324 | D->getStorageClass(), |
| 325 | D->getStorageClassAsWritten()); |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 326 | Var->setThreadSpecified(D->isThreadSpecified()); |
| 327 | Var->setCXXDirectInitializer(D->hasCXXDirectInitializer()); |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 328 | Var->setCXXForRangeDecl(D->isCXXForRangeDecl()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 329 | |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 330 | // Substitute the nested name specifier, if any. |
| 331 | if (SubstQualifier(D, Var)) |
| 332 | return 0; |
| 333 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 334 | // If we are instantiating a static data member defined |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 335 | // out-of-line, the instantiation will have the same lexical |
| 336 | // context (which will be a namespace scope) as the template. |
| 337 | if (D->isOutOfLine()) |
| 338 | Var->setLexicalDeclContext(D->getLexicalDeclContext()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 339 | |
John McCall | 46460a6 | 2010-01-20 21:53:11 +0000 | [diff] [blame] | 340 | Var->setAccess(D->getAccess()); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 341 | |
Argyrios Kyrtzidis | 6b6b42a | 2011-04-19 19:51:10 +0000 | [diff] [blame] | 342 | if (!D->isStaticDataMember()) { |
Douglas Gregor | c070cc6 | 2010-06-17 23:14:26 +0000 | [diff] [blame] | 343 | Var->setUsed(D->isUsed(false)); |
Argyrios Kyrtzidis | 6b6b42a | 2011-04-19 19:51:10 +0000 | [diff] [blame] | 344 | Var->setReferenced(D->isReferenced()); |
| 345 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 346 | |
Mike Stump | 390b4cc | 2009-05-16 07:39:55 +0000 | [diff] [blame] | 347 | // FIXME: In theory, we could have a previous declaration for variables that |
| 348 | // are not static data members. |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 349 | // FIXME: having to fake up a LookupResult is dumb. |
| 350 | LookupResult Previous(SemaRef, Var->getDeclName(), Var->getLocation(), |
Douglas Gregor | 449d0a8 | 2010-03-01 19:11:54 +0000 | [diff] [blame] | 351 | Sema::LookupOrdinaryName, Sema::ForRedeclaration); |
Douglas Gregor | 60c93c9 | 2010-02-09 07:26:29 +0000 | [diff] [blame] | 352 | if (D->isStaticDataMember()) |
| 353 | SemaRef.LookupQualifiedName(Previous, Owner, false); |
Kaelyn Uhrain | 2c712f5 | 2011-10-11 00:28:45 +0000 | [diff] [blame] | 354 | SemaRef.CheckVariableDeclaration(Var, Previous); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 355 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 356 | if (D->isOutOfLine()) { |
Abramo Bagnara | ea7b488 | 2010-06-04 09:35:39 +0000 | [diff] [blame] | 357 | if (!D->isStaticDataMember()) |
| 358 | D->getLexicalDeclContext()->addDecl(Var); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 359 | Owner->makeDeclVisibleInContext(Var); |
| 360 | } else { |
| 361 | Owner->addDecl(Var); |
Douglas Gregor | f7d72f5 | 2010-05-03 20:22:41 +0000 | [diff] [blame] | 362 | if (Owner->isFunctionOrMethod()) |
| 363 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Var); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 364 | } |
John McCall | 1d8d1cc | 2010-08-01 02:01:53 +0000 | [diff] [blame] | 365 | SemaRef.InstantiateAttrs(TemplateArgs, D, Var); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 366 | |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 367 | // Link instantiations of static data members back to the template from |
| 368 | // which they were instantiated. |
| 369 | if (Var->isStaticDataMember()) |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 370 | SemaRef.Context.setInstantiatedFromStaticDataMember(Var, D, |
Douglas Gregor | cf3293e | 2009-11-01 20:32:48 +0000 | [diff] [blame] | 371 | TSK_ImplicitInstantiation); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 372 | |
Douglas Gregor | 60c93c9 | 2010-02-09 07:26:29 +0000 | [diff] [blame] | 373 | if (Var->getAnyInitializer()) { |
| 374 | // We already have an initializer in the class. |
| 375 | } else if (D->getInit()) { |
Douglas Gregor | 1f5f3a4 | 2009-12-03 17:10:37 +0000 | [diff] [blame] | 376 | if (Var->isStaticDataMember() && !D->isOutOfLine()) |
| 377 | SemaRef.PushExpressionEvaluationContext(Sema::Unevaluated); |
| 378 | else |
| 379 | SemaRef.PushExpressionEvaluationContext(Sema::PotentiallyEvaluated); |
| 380 | |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 381 | // Instantiate the initializer. |
| 382 | SourceLocation LParenLoc, RParenLoc; |
John McCall | ca0408f | 2010-08-23 06:44:23 +0000 | [diff] [blame] | 383 | ASTOwningVector<Expr*> InitArgs(SemaRef); |
Richard Smith | 0ff6f8f | 2011-07-20 00:12:52 +0000 | [diff] [blame] | 384 | if (!SemaRef.InstantiateInitializer(D->getInit(), TemplateArgs, LParenLoc, |
| 385 | InitArgs, RParenLoc)) { |
Richard Smith | 34b41d9 | 2011-02-20 03:19:35 +0000 | [diff] [blame] | 386 | bool TypeMayContainAuto = true; |
Douglas Gregor | 07a77b4 | 2011-01-14 17:12:22 +0000 | [diff] [blame] | 387 | // Attach the initializer to the declaration, if we have one. |
| 388 | if (InitArgs.size() == 0) |
Richard Smith | 34b41d9 | 2011-02-20 03:19:35 +0000 | [diff] [blame] | 389 | SemaRef.ActOnUninitializedDecl(Var, TypeMayContainAuto); |
Douglas Gregor | 07a77b4 | 2011-01-14 17:12:22 +0000 | [diff] [blame] | 390 | else if (D->hasCXXDirectInitializer()) { |
Douglas Gregor | 6eef519 | 2009-12-14 19:27:10 +0000 | [diff] [blame] | 391 | // Add the direct initializer to the declaration. |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 392 | SemaRef.AddCXXDirectInitializerToDecl(Var, |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 393 | LParenLoc, |
Douglas Gregor | 6eef519 | 2009-12-14 19:27:10 +0000 | [diff] [blame] | 394 | move_arg(InitArgs), |
Richard Smith | 34b41d9 | 2011-02-20 03:19:35 +0000 | [diff] [blame] | 395 | RParenLoc, |
| 396 | TypeMayContainAuto); |
Douglas Gregor | 07a77b4 | 2011-01-14 17:12:22 +0000 | [diff] [blame] | 397 | } else { |
| 398 | assert(InitArgs.size() == 1); |
John McCall | 9ae2f07 | 2010-08-23 23:25:46 +0000 | [diff] [blame] | 399 | Expr *Init = InitArgs.take()[0]; |
Richard Smith | 34b41d9 | 2011-02-20 03:19:35 +0000 | [diff] [blame] | 400 | SemaRef.AddInitializerToDecl(Var, Init, false, TypeMayContainAuto); |
Douglas Gregor | 6eef519 | 2009-12-14 19:27:10 +0000 | [diff] [blame] | 401 | } |
Douglas Gregor | 6eef519 | 2009-12-14 19:27:10 +0000 | [diff] [blame] | 402 | } else { |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 403 | // FIXME: Not too happy about invalidating the declaration |
| 404 | // because of a bogus initializer. |
| 405 | Var->setInvalidDecl(); |
Douglas Gregor | 6eef519 | 2009-12-14 19:27:10 +0000 | [diff] [blame] | 406 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 407 | |
Douglas Gregor | 1f5f3a4 | 2009-12-03 17:10:37 +0000 | [diff] [blame] | 408 | SemaRef.PopExpressionEvaluationContext(); |
Richard Smith | ad762fc | 2011-04-14 22:09:26 +0000 | [diff] [blame] | 409 | } else if ((!Var->isStaticDataMember() || Var->isOutOfLine()) && |
| 410 | !Var->isCXXForRangeDecl()) |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 411 | SemaRef.ActOnUninitializedDecl(Var, false); |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 412 | |
Richard Smith | e3499ca | 2011-06-21 23:42:09 +0000 | [diff] [blame] | 413 | // Diagnose unused local variables with dependent types, where the diagnostic |
| 414 | // will have been deferred. |
| 415 | if (!Var->isInvalidDecl() && Owner->isFunctionOrMethod() && !Var->isUsed() && |
| 416 | D->getType()->isDependentType()) |
Douglas Gregor | 5764f61 | 2010-05-08 23:05:03 +0000 | [diff] [blame] | 417 | SemaRef.DiagnoseUnusedDecl(Var); |
Argyrios Kyrtzidis | bbc6454 | 2010-08-15 01:15:20 +0000 | [diff] [blame] | 418 | |
Douglas Gregor | 3d7a12a | 2009-03-25 23:32:15 +0000 | [diff] [blame] | 419 | return Var; |
| 420 | } |
| 421 | |
Abramo Bagnara | 6206d53 | 2010-06-05 05:09:32 +0000 | [diff] [blame] | 422 | Decl *TemplateDeclInstantiator::VisitAccessSpecDecl(AccessSpecDecl *D) { |
| 423 | AccessSpecDecl* AD |
| 424 | = AccessSpecDecl::Create(SemaRef.Context, D->getAccess(), Owner, |
| 425 | D->getAccessSpecifierLoc(), D->getColonLoc()); |
| 426 | Owner->addHiddenDecl(AD); |
| 427 | return AD; |
| 428 | } |
| 429 | |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 430 | Decl *TemplateDeclInstantiator::VisitFieldDecl(FieldDecl *D) { |
| 431 | bool Invalid = false; |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 432 | TypeSourceInfo *DI = D->getTypeSourceInfo(); |
Douglas Gregor | 561f812 | 2011-07-01 01:22:09 +0000 | [diff] [blame] | 433 | if (DI->getType()->isInstantiationDependentType() || |
Douglas Gregor | 836adf6 | 2010-05-24 17:22:01 +0000 | [diff] [blame] | 434 | DI->getType()->isVariablyModifiedType()) { |
John McCall | 07fb6be | 2009-10-22 23:33:21 +0000 | [diff] [blame] | 435 | DI = SemaRef.SubstType(DI, TemplateArgs, |
| 436 | D->getLocation(), D->getDeclName()); |
| 437 | if (!DI) { |
John McCall | a93c934 | 2009-12-07 02:54:59 +0000 | [diff] [blame] | 438 | DI = D->getTypeSourceInfo(); |
John McCall | 07fb6be | 2009-10-22 23:33:21 +0000 | [diff] [blame] | 439 | Invalid = true; |
| 440 | } else if (DI->getType()->isFunctionType()) { |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 441 | // C++ [temp.arg.type]p3: |
| 442 | // If a declaration acquires a function type through a type |
| 443 | // dependent on a template-parameter and this causes a |
| 444 | // declaration that does not use the syntactic form of a |
| 445 | // function declarator to have function type, the program is |
| 446 | // ill-formed. |
| 447 | SemaRef.Diag(D->getLocation(), diag::err_field_instantiates_to_function) |
John McCall | 07fb6be | 2009-10-22 23:33:21 +0000 | [diff] [blame] | 448 | << DI->getType(); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 449 | Invalid = true; |
| 450 | } |
Douglas Gregor | b4eeaff | 2010-05-07 23:12:07 +0000 | [diff] [blame] | 451 | } else { |
| 452 | SemaRef.MarkDeclarationsReferencedInType(D->getLocation(), DI->getType()); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 453 | } |
| 454 | |
| 455 | Expr *BitWidth = D->getBitWidth(); |
| 456 | if (Invalid) |
| 457 | BitWidth = 0; |
| 458 | else if (BitWidth) { |
Douglas Gregor | ac7610d | 2009-06-22 20:57:11 +0000 | [diff] [blame] | 459 | // The bit-width expression is not potentially evaluated. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 460 | EnterExpressionEvaluationContext Unevaluated(SemaRef, Sema::Unevaluated); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 461 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 462 | ExprResult InstantiatedBitWidth |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 463 | = SemaRef.SubstExpr(BitWidth, TemplateArgs); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 464 | if (InstantiatedBitWidth.isInvalid()) { |
| 465 | Invalid = true; |
| 466 | BitWidth = 0; |
| 467 | } else |
Anders Carlsson | e9146f2 | 2009-05-01 19:49:17 +0000 | [diff] [blame] | 468 | BitWidth = InstantiatedBitWidth.takeAs<Expr>(); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 469 | } |
| 470 | |
John McCall | 07fb6be | 2009-10-22 23:33:21 +0000 | [diff] [blame] | 471 | FieldDecl *Field = SemaRef.CheckFieldDecl(D->getDeclName(), |
| 472 | DI->getType(), DI, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 473 | cast<RecordDecl>(Owner), |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 474 | D->getLocation(), |
| 475 | D->isMutable(), |
| 476 | BitWidth, |
Richard Smith | 7a614d8 | 2011-06-11 17:19:42 +0000 | [diff] [blame] | 477 | D->hasInClassInitializer(), |
Steve Naroff | ea218b8 | 2009-07-14 14:58:18 +0000 | [diff] [blame] | 478 | D->getTypeSpecStartLoc(), |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 479 | D->getAccess(), |
| 480 | 0); |
Douglas Gregor | 663b5a0 | 2009-10-14 20:14:33 +0000 | [diff] [blame] | 481 | if (!Field) { |
| 482 | cast<Decl>(Owner)->setInvalidDecl(); |
Anders Carlsson | f4b5f5c | 2009-09-02 19:17:55 +0000 | [diff] [blame] | 483 | return 0; |
Douglas Gregor | 663b5a0 | 2009-10-14 20:14:33 +0000 | [diff] [blame] | 484 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 485 | |
John McCall | 1d8d1cc | 2010-08-01 02:01:53 +0000 | [diff] [blame] | 486 | SemaRef.InstantiateAttrs(TemplateArgs, D, Field); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 487 | |
Anders Carlsson | f4b5f5c | 2009-09-02 19:17:55 +0000 | [diff] [blame] | 488 | if (Invalid) |
| 489 | Field->setInvalidDecl(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 490 | |
Anders Carlsson | f4b5f5c | 2009-09-02 19:17:55 +0000 | [diff] [blame] | 491 | if (!Field->getDeclName()) { |
| 492 | // Keep track of where this decl came from. |
| 493 | SemaRef.Context.setInstantiatedFromUnnamedFieldDecl(Field, D); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 494 | } |
Douglas Gregor | 9901c57 | 2010-05-21 00:31:19 +0000 | [diff] [blame] | 495 | if (CXXRecordDecl *Parent= dyn_cast<CXXRecordDecl>(Field->getDeclContext())) { |
| 496 | if (Parent->isAnonymousStructOrUnion() && |
Sebastian Redl | 7a126a4 | 2010-08-31 00:36:30 +0000 | [diff] [blame] | 497 | Parent->getRedeclContext()->isFunctionOrMethod()) |
Douglas Gregor | 9901c57 | 2010-05-21 00:31:19 +0000 | [diff] [blame] | 498 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Field); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 499 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 500 | |
Anders Carlsson | f4b5f5c | 2009-09-02 19:17:55 +0000 | [diff] [blame] | 501 | Field->setImplicit(D->isImplicit()); |
John McCall | 46460a6 | 2010-01-20 21:53:11 +0000 | [diff] [blame] | 502 | Field->setAccess(D->getAccess()); |
Anders Carlsson | f4b5f5c | 2009-09-02 19:17:55 +0000 | [diff] [blame] | 503 | Owner->addDecl(Field); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 504 | |
| 505 | return Field; |
| 506 | } |
| 507 | |
Francois Pichet | 87c2e12 | 2010-11-21 06:08:52 +0000 | [diff] [blame] | 508 | Decl *TemplateDeclInstantiator::VisitIndirectFieldDecl(IndirectFieldDecl *D) { |
| 509 | NamedDecl **NamedChain = |
| 510 | new (SemaRef.Context)NamedDecl*[D->getChainingSize()]; |
| 511 | |
| 512 | int i = 0; |
| 513 | for (IndirectFieldDecl::chain_iterator PI = |
| 514 | D->chain_begin(), PE = D->chain_end(); |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 515 | PI != PE; ++PI) { |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 516 | NamedDecl *Next = SemaRef.FindInstantiatedDecl(D->getLocation(), *PI, |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 517 | TemplateArgs); |
| 518 | if (!Next) |
| 519 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 520 | |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 521 | NamedChain[i++] = Next; |
| 522 | } |
Francois Pichet | 87c2e12 | 2010-11-21 06:08:52 +0000 | [diff] [blame] | 523 | |
Francois Pichet | 40e1775 | 2010-12-09 10:07:54 +0000 | [diff] [blame] | 524 | QualType T = cast<FieldDecl>(NamedChain[i-1])->getType(); |
Francois Pichet | 87c2e12 | 2010-11-21 06:08:52 +0000 | [diff] [blame] | 525 | IndirectFieldDecl* IndirectField |
| 526 | = IndirectFieldDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
Francois Pichet | 40e1775 | 2010-12-09 10:07:54 +0000 | [diff] [blame] | 527 | D->getIdentifier(), T, |
Francois Pichet | 87c2e12 | 2010-11-21 06:08:52 +0000 | [diff] [blame] | 528 | NamedChain, D->getChainingSize()); |
| 529 | |
| 530 | |
| 531 | IndirectField->setImplicit(D->isImplicit()); |
| 532 | IndirectField->setAccess(D->getAccess()); |
| 533 | Owner->addDecl(IndirectField); |
| 534 | return IndirectField; |
| 535 | } |
| 536 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 537 | Decl *TemplateDeclInstantiator::VisitFriendDecl(FriendDecl *D) { |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 538 | // Handle friend type expressions by simply substituting template |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 539 | // parameters into the pattern type and checking the result. |
John McCall | 32f2fb5 | 2010-03-25 18:04:51 +0000 | [diff] [blame] | 540 | if (TypeSourceInfo *Ty = D->getFriendType()) { |
Chandler Carruth | 4fb86f8 | 2011-05-01 00:51:33 +0000 | [diff] [blame] | 541 | TypeSourceInfo *InstTy; |
| 542 | // If this is an unsupported friend, don't bother substituting template |
| 543 | // arguments into it. The actual type referred to won't be used by any |
| 544 | // parts of Clang, and may not be valid for instantiating. Just use the |
| 545 | // same info for the instantiated friend. |
| 546 | if (D->isUnsupportedFriend()) { |
| 547 | InstTy = Ty; |
| 548 | } else { |
| 549 | InstTy = SemaRef.SubstType(Ty, TemplateArgs, |
| 550 | D->getLocation(), DeclarationName()); |
| 551 | } |
| 552 | if (!InstTy) |
Douglas Gregor | 7557a13 | 2009-12-24 20:56:24 +0000 | [diff] [blame] | 553 | return 0; |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 554 | |
Abramo Bagnara | 0216df8 | 2011-10-29 20:52:52 +0000 | [diff] [blame] | 555 | FriendDecl *FD = SemaRef.CheckFriendTypeDecl(D->getLocation(), |
| 556 | D->getFriendLoc(), InstTy); |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 557 | if (!FD) |
| 558 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 559 | |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 560 | FD->setAccess(AS_public); |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 561 | FD->setUnsupportedFriend(D->isUnsupportedFriend()); |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 562 | Owner->addDecl(FD); |
| 563 | return FD; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 564 | } |
| 565 | |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 566 | NamedDecl *ND = D->getFriendDecl(); |
| 567 | assert(ND && "friend decl must be a decl or a type!"); |
| 568 | |
John McCall | af2094e | 2010-04-08 09:05:18 +0000 | [diff] [blame] | 569 | // All of the Visit implementations for the various potential friend |
| 570 | // declarations have to be carefully written to work for friend |
| 571 | // objects, with the most important detail being that the target |
| 572 | // decl should almost certainly not be placed in Owner. |
| 573 | Decl *NewND = Visit(ND); |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 574 | if (!NewND) return 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 575 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 576 | FriendDecl *FD = |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 577 | FriendDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
Douglas Gregor | 06245bf | 2010-04-07 17:57:12 +0000 | [diff] [blame] | 578 | cast<NamedDecl>(NewND), D->getFriendLoc()); |
John McCall | 5fee110 | 2009-08-29 03:50:18 +0000 | [diff] [blame] | 579 | FD->setAccess(AS_public); |
John McCall | 9a34edb | 2010-10-19 01:40:49 +0000 | [diff] [blame] | 580 | FD->setUnsupportedFriend(D->isUnsupportedFriend()); |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 581 | Owner->addDecl(FD); |
| 582 | return FD; |
John McCall | fd810b1 | 2009-08-14 02:03:10 +0000 | [diff] [blame] | 583 | } |
| 584 | |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 585 | Decl *TemplateDeclInstantiator::VisitStaticAssertDecl(StaticAssertDecl *D) { |
| 586 | Expr *AssertExpr = D->getAssertExpr(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 587 | |
Douglas Gregor | ac7610d | 2009-06-22 20:57:11 +0000 | [diff] [blame] | 588 | // The expression in a static assertion is not potentially evaluated. |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 589 | EnterExpressionEvaluationContext Unevaluated(SemaRef, Sema::Unevaluated); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 590 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 591 | ExprResult InstantiatedAssertExpr |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 592 | = SemaRef.SubstExpr(AssertExpr, TemplateArgs); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 593 | if (InstantiatedAssertExpr.isInvalid()) |
| 594 | return 0; |
| 595 | |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 596 | ExprResult Message(D->getMessage()); |
John McCall | 3fa5cae | 2010-10-26 07:05:15 +0000 | [diff] [blame] | 597 | D->getMessage(); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 598 | return SemaRef.ActOnStaticAssertDeclaration(D->getLocation(), |
John McCall | 9ae2f07 | 2010-08-23 23:25:46 +0000 | [diff] [blame] | 599 | InstantiatedAssertExpr.get(), |
Abramo Bagnara | a2026c9 | 2011-03-08 16:41:52 +0000 | [diff] [blame] | 600 | Message.get(), |
| 601 | D->getRParenLoc()); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 602 | } |
| 603 | |
| 604 | Decl *TemplateDeclInstantiator::VisitEnumDecl(EnumDecl *D) { |
Abramo Bagnara | ba877ad | 2011-03-09 14:09:51 +0000 | [diff] [blame] | 605 | EnumDecl *Enum = EnumDecl::Create(SemaRef.Context, Owner, D->getLocStart(), |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 606 | D->getLocation(), D->getIdentifier(), |
Abramo Bagnara | a88cefd | 2010-12-03 18:54:17 +0000 | [diff] [blame] | 607 | /*PrevDecl=*/0, D->isScoped(), |
| 608 | D->isScopedUsingClassTag(), D->isFixed()); |
Douglas Gregor | 1274ccd | 2010-10-08 23:50:27 +0000 | [diff] [blame] | 609 | if (D->isFixed()) { |
| 610 | if (TypeSourceInfo* TI = D->getIntegerTypeSourceInfo()) { |
| 611 | // If we have type source information for the underlying type, it means it |
| 612 | // has been explicitly set by the user. Perform substitution on it before |
| 613 | // moving on. |
| 614 | SourceLocation UnderlyingLoc = TI->getTypeLoc().getBeginLoc(); |
| 615 | Enum->setIntegerTypeSourceInfo(SemaRef.SubstType(TI, |
| 616 | TemplateArgs, |
| 617 | UnderlyingLoc, |
| 618 | DeclarationName())); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 619 | |
Douglas Gregor | 1274ccd | 2010-10-08 23:50:27 +0000 | [diff] [blame] | 620 | if (!Enum->getIntegerTypeSourceInfo()) |
| 621 | Enum->setIntegerType(SemaRef.Context.IntTy); |
| 622 | } |
| 623 | else { |
| 624 | assert(!D->getIntegerType()->isDependentType() |
| 625 | && "Dependent type without type source info"); |
| 626 | Enum->setIntegerType(D->getIntegerType()); |
| 627 | } |
| 628 | } |
| 629 | |
John McCall | 5b629aa | 2010-10-22 23:36:17 +0000 | [diff] [blame] | 630 | SemaRef.InstantiateAttrs(TemplateArgs, D, Enum); |
| 631 | |
Douglas Gregor | 8dbc3c6 | 2009-05-27 17:20:35 +0000 | [diff] [blame] | 632 | Enum->setInstantiationOfMemberEnum(D); |
Douglas Gregor | 06c0fec | 2009-03-25 22:00:53 +0000 | [diff] [blame] | 633 | Enum->setAccess(D->getAccess()); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 634 | if (SubstQualifier(D, Enum)) return 0; |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 635 | Owner->addDecl(Enum); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 636 | Enum->startDefinition(); |
| 637 | |
Douglas Gregor | 96084f1 | 2010-03-01 19:00:07 +0000 | [diff] [blame] | 638 | if (D->getDeclContext()->isFunctionOrMethod()) |
| 639 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Enum); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 640 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 641 | SmallVector<Decl*, 4> Enumerators; |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 642 | |
| 643 | EnumConstantDecl *LastEnumConst = 0; |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 644 | for (EnumDecl::enumerator_iterator EC = D->enumerator_begin(), |
| 645 | ECEnd = D->enumerator_end(); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 646 | EC != ECEnd; ++EC) { |
| 647 | // The specified value for the enumerator. |
John McCall | 60d7b3a | 2010-08-24 06:29:42 +0000 | [diff] [blame] | 648 | ExprResult Value = SemaRef.Owned((Expr *)0); |
Douglas Gregor | ac7610d | 2009-06-22 20:57:11 +0000 | [diff] [blame] | 649 | if (Expr *UninstValue = EC->getInitExpr()) { |
| 650 | // The enumerator's value expression is not potentially evaluated. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 651 | EnterExpressionEvaluationContext Unevaluated(SemaRef, |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 652 | Sema::Unevaluated); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 653 | |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 654 | Value = SemaRef.SubstExpr(UninstValue, TemplateArgs); |
Douglas Gregor | ac7610d | 2009-06-22 20:57:11 +0000 | [diff] [blame] | 655 | } |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 656 | |
| 657 | // Drop the initial value and continue. |
| 658 | bool isInvalid = false; |
| 659 | if (Value.isInvalid()) { |
| 660 | Value = SemaRef.Owned((Expr *)0); |
| 661 | isInvalid = true; |
| 662 | } |
| 663 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 664 | EnumConstantDecl *EnumConst |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 665 | = SemaRef.CheckEnumConstant(Enum, LastEnumConst, |
| 666 | EC->getLocation(), EC->getIdentifier(), |
John McCall | 9ae2f07 | 2010-08-23 23:25:46 +0000 | [diff] [blame] | 667 | Value.get()); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 668 | |
| 669 | if (isInvalid) { |
| 670 | if (EnumConst) |
| 671 | EnumConst->setInvalidDecl(); |
| 672 | Enum->setInvalidDecl(); |
| 673 | } |
| 674 | |
| 675 | if (EnumConst) { |
John McCall | 5b629aa | 2010-10-22 23:36:17 +0000 | [diff] [blame] | 676 | SemaRef.InstantiateAttrs(TemplateArgs, *EC, EnumConst); |
| 677 | |
John McCall | 3b85ecf | 2010-01-23 22:37:59 +0000 | [diff] [blame] | 678 | EnumConst->setAccess(Enum->getAccess()); |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 679 | Enum->addDecl(EnumConst); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 680 | Enumerators.push_back(EnumConst); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 681 | LastEnumConst = EnumConst; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 682 | |
Douglas Gregor | 96084f1 | 2010-03-01 19:00:07 +0000 | [diff] [blame] | 683 | if (D->getDeclContext()->isFunctionOrMethod()) { |
| 684 | // If the enumeration is within a function or method, record the enum |
| 685 | // constant as a local. |
| 686 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(*EC, EnumConst); |
| 687 | } |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 688 | } |
| 689 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 690 | |
Mike Stump | c6e35aa | 2009-05-16 07:06:02 +0000 | [diff] [blame] | 691 | // FIXME: Fixup LBraceLoc and RBraceLoc |
Edward O'Callaghan | fee1381 | 2009-08-08 14:36:57 +0000 | [diff] [blame] | 692 | // FIXME: Empty Scope and AttributeList (required to handle attribute packed). |
Mike Stump | c6e35aa | 2009-05-16 07:06:02 +0000 | [diff] [blame] | 693 | SemaRef.ActOnEnumBody(Enum->getLocation(), SourceLocation(), SourceLocation(), |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 694 | Enum, |
Eli Friedman | de7a0fc | 2010-08-15 02:27:09 +0000 | [diff] [blame] | 695 | Enumerators.data(), Enumerators.size(), |
Edward O'Callaghan | fee1381 | 2009-08-08 14:36:57 +0000 | [diff] [blame] | 696 | 0, 0); |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 697 | |
| 698 | return Enum; |
| 699 | } |
| 700 | |
Douglas Gregor | 6477b69 | 2009-03-25 15:04:13 +0000 | [diff] [blame] | 701 | Decl *TemplateDeclInstantiator::VisitEnumConstantDecl(EnumConstantDecl *D) { |
David Blaikie | b219cfc | 2011-09-23 05:06:16 +0000 | [diff] [blame] | 702 | llvm_unreachable("EnumConstantDecls can only occur within EnumDecls."); |
Douglas Gregor | 6477b69 | 2009-03-25 15:04:13 +0000 | [diff] [blame] | 703 | } |
| 704 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 705 | Decl *TemplateDeclInstantiator::VisitClassTemplateDecl(ClassTemplateDecl *D) { |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 706 | bool isFriend = (D->getFriendObjectKind() != Decl::FOK_None); |
| 707 | |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 708 | // Create a local instantiation scope for this class template, which |
| 709 | // will contain the instantiations of the template parameters. |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 710 | LocalInstantiationScope Scope(SemaRef); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 711 | TemplateParameterList *TempParams = D->getTemplateParameters(); |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 712 | TemplateParameterList *InstParams = SubstTemplateParams(TempParams); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 713 | if (!InstParams) |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 714 | return NULL; |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 715 | |
| 716 | CXXRecordDecl *Pattern = D->getTemplatedDecl(); |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 717 | |
| 718 | // Instantiate the qualifier. We have to do this first in case |
| 719 | // we're a friend declaration, because if we are then we need to put |
| 720 | // the new declaration in the appropriate context. |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 721 | NestedNameSpecifierLoc QualifierLoc = Pattern->getQualifierLoc(); |
| 722 | if (QualifierLoc) { |
| 723 | QualifierLoc = SemaRef.SubstNestedNameSpecifierLoc(QualifierLoc, |
| 724 | TemplateArgs); |
| 725 | if (!QualifierLoc) |
| 726 | return 0; |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 727 | } |
| 728 | |
| 729 | CXXRecordDecl *PrevDecl = 0; |
| 730 | ClassTemplateDecl *PrevClassTemplate = 0; |
| 731 | |
Nick Lewycky | 37574f5 | 2010-11-08 23:29:42 +0000 | [diff] [blame] | 732 | if (!isFriend && Pattern->getPreviousDeclaration()) { |
| 733 | DeclContext::lookup_result Found = Owner->lookup(Pattern->getDeclName()); |
| 734 | if (Found.first != Found.second) { |
| 735 | PrevClassTemplate = dyn_cast<ClassTemplateDecl>(*Found.first); |
| 736 | if (PrevClassTemplate) |
| 737 | PrevDecl = PrevClassTemplate->getTemplatedDecl(); |
| 738 | } |
| 739 | } |
| 740 | |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 741 | // If this isn't a friend, then it's a member template, in which |
| 742 | // case we just want to build the instantiation in the |
| 743 | // specialization. If it is a friend, we want to build it in |
| 744 | // the appropriate context. |
| 745 | DeclContext *DC = Owner; |
| 746 | if (isFriend) { |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 747 | if (QualifierLoc) { |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 748 | CXXScopeSpec SS; |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 749 | SS.Adopt(QualifierLoc); |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 750 | DC = SemaRef.computeDeclContext(SS); |
| 751 | if (!DC) return 0; |
| 752 | } else { |
| 753 | DC = SemaRef.FindInstantiatedContext(Pattern->getLocation(), |
| 754 | Pattern->getDeclContext(), |
| 755 | TemplateArgs); |
| 756 | } |
| 757 | |
| 758 | // Look for a previous declaration of the template in the owning |
| 759 | // context. |
| 760 | LookupResult R(SemaRef, Pattern->getDeclName(), Pattern->getLocation(), |
| 761 | Sema::LookupOrdinaryName, Sema::ForRedeclaration); |
| 762 | SemaRef.LookupQualifiedName(R, DC); |
| 763 | |
| 764 | if (R.isSingleResult()) { |
| 765 | PrevClassTemplate = R.getAsSingle<ClassTemplateDecl>(); |
| 766 | if (PrevClassTemplate) |
| 767 | PrevDecl = PrevClassTemplate->getTemplatedDecl(); |
| 768 | } |
| 769 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 770 | if (!PrevClassTemplate && QualifierLoc) { |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 771 | SemaRef.Diag(Pattern->getLocation(), diag::err_not_tag_in_scope) |
Douglas Gregor | 1eabb7d | 2010-03-31 23:17:41 +0000 | [diff] [blame] | 772 | << D->getTemplatedDecl()->getTagKind() << Pattern->getDeclName() << DC |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 773 | << QualifierLoc.getSourceRange(); |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 774 | return 0; |
| 775 | } |
| 776 | |
Douglas Gregor | c53d0d7 | 2010-04-08 18:16:15 +0000 | [diff] [blame] | 777 | bool AdoptedPreviousTemplateParams = false; |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 778 | if (PrevClassTemplate) { |
Douglas Gregor | c53d0d7 | 2010-04-08 18:16:15 +0000 | [diff] [blame] | 779 | bool Complain = true; |
| 780 | |
| 781 | // HACK: libstdc++ 4.2.1 contains an ill-formed friend class |
| 782 | // template for struct std::tr1::__detail::_Map_base, where the |
| 783 | // template parameters of the friend declaration don't match the |
| 784 | // template parameters of the original declaration. In this one |
| 785 | // case, we don't complain about the ill-formed friend |
| 786 | // declaration. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 787 | if (isFriend && Pattern->getIdentifier() && |
Douglas Gregor | c53d0d7 | 2010-04-08 18:16:15 +0000 | [diff] [blame] | 788 | Pattern->getIdentifier()->isStr("_Map_base") && |
| 789 | DC->isNamespace() && |
| 790 | cast<NamespaceDecl>(DC)->getIdentifier() && |
| 791 | cast<NamespaceDecl>(DC)->getIdentifier()->isStr("__detail")) { |
| 792 | DeclContext *DCParent = DC->getParent(); |
| 793 | if (DCParent->isNamespace() && |
| 794 | cast<NamespaceDecl>(DCParent)->getIdentifier() && |
| 795 | cast<NamespaceDecl>(DCParent)->getIdentifier()->isStr("tr1")) { |
| 796 | DeclContext *DCParent2 = DCParent->getParent(); |
| 797 | if (DCParent2->isNamespace() && |
| 798 | cast<NamespaceDecl>(DCParent2)->getIdentifier() && |
| 799 | cast<NamespaceDecl>(DCParent2)->getIdentifier()->isStr("std") && |
| 800 | DCParent2->getParent()->isTranslationUnit()) |
| 801 | Complain = false; |
| 802 | } |
| 803 | } |
| 804 | |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 805 | TemplateParameterList *PrevParams |
| 806 | = PrevClassTemplate->getTemplateParameters(); |
| 807 | |
| 808 | // Make sure the parameter lists match. |
| 809 | if (!SemaRef.TemplateParameterListsAreEqual(InstParams, PrevParams, |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 810 | Complain, |
Douglas Gregor | c53d0d7 | 2010-04-08 18:16:15 +0000 | [diff] [blame] | 811 | Sema::TPL_TemplateMatch)) { |
| 812 | if (Complain) |
| 813 | return 0; |
| 814 | |
| 815 | AdoptedPreviousTemplateParams = true; |
| 816 | InstParams = PrevParams; |
| 817 | } |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 818 | |
| 819 | // Do some additional validation, then merge default arguments |
| 820 | // from the existing declarations. |
Douglas Gregor | c53d0d7 | 2010-04-08 18:16:15 +0000 | [diff] [blame] | 821 | if (!AdoptedPreviousTemplateParams && |
| 822 | SemaRef.CheckTemplateParameterList(InstParams, PrevParams, |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 823 | Sema::TPC_ClassTemplate)) |
| 824 | return 0; |
| 825 | } |
| 826 | } |
| 827 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 828 | CXXRecordDecl *RecordInst |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 829 | = CXXRecordDecl::Create(SemaRef.Context, Pattern->getTagKind(), DC, |
Abramo Bagnara | ba877ad | 2011-03-09 14:09:51 +0000 | [diff] [blame] | 830 | Pattern->getLocStart(), Pattern->getLocation(), |
| 831 | Pattern->getIdentifier(), PrevDecl, |
Douglas Gregor | f0510d4 | 2009-10-12 23:11:44 +0000 | [diff] [blame] | 832 | /*DelayTypeCreation=*/true); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 833 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 834 | if (QualifierLoc) |
| 835 | RecordInst->setQualifierInfo(QualifierLoc); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 836 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 837 | ClassTemplateDecl *Inst |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 838 | = ClassTemplateDecl::Create(SemaRef.Context, DC, D->getLocation(), |
| 839 | D->getIdentifier(), InstParams, RecordInst, |
| 840 | PrevClassTemplate); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 841 | RecordInst->setDescribedClassTemplate(Inst); |
John McCall | ea7390c | 2010-04-08 20:25:50 +0000 | [diff] [blame] | 842 | |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 843 | if (isFriend) { |
John McCall | ea7390c | 2010-04-08 20:25:50 +0000 | [diff] [blame] | 844 | if (PrevClassTemplate) |
| 845 | Inst->setAccess(PrevClassTemplate->getAccess()); |
| 846 | else |
| 847 | Inst->setAccess(D->getAccess()); |
| 848 | |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 849 | Inst->setObjectOfFriendDecl(PrevClassTemplate != 0); |
| 850 | // TODO: do we want to track the instantiation progeny of this |
| 851 | // friend target decl? |
| 852 | } else { |
Douglas Gregor | e8c01bd | 2009-10-30 21:07:27 +0000 | [diff] [blame] | 853 | Inst->setAccess(D->getAccess()); |
Nick Lewycky | 37574f5 | 2010-11-08 23:29:42 +0000 | [diff] [blame] | 854 | if (!PrevClassTemplate) |
| 855 | Inst->setInstantiatedFromMemberTemplate(D); |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 856 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 857 | |
Douglas Gregor | f0510d4 | 2009-10-12 23:11:44 +0000 | [diff] [blame] | 858 | // Trigger creation of the type for the instantiation. |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 859 | SemaRef.Context.getInjectedClassNameType(RecordInst, |
Douglas Gregor | 24bae92 | 2010-07-08 18:37:38 +0000 | [diff] [blame] | 860 | Inst->getInjectedClassNameSpecialization()); |
John McCall | ea7390c | 2010-04-08 20:25:50 +0000 | [diff] [blame] | 861 | |
Douglas Gregor | 259571e | 2009-10-30 22:42:42 +0000 | [diff] [blame] | 862 | // Finish handling of friends. |
John McCall | 93ba857 | 2010-03-25 06:39:04 +0000 | [diff] [blame] | 863 | if (isFriend) { |
| 864 | DC->makeDeclVisibleInContext(Inst, /*Recoverable*/ false); |
Douglas Gregor | e8c01bd | 2009-10-30 21:07:27 +0000 | [diff] [blame] | 865 | return Inst; |
Douglas Gregor | 259571e | 2009-10-30 22:42:42 +0000 | [diff] [blame] | 866 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 867 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 868 | Owner->addDecl(Inst); |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 869 | |
| 870 | if (!PrevClassTemplate) { |
| 871 | // Queue up any out-of-line partial specializations of this member |
| 872 | // class template; the client will force their instantiation once |
| 873 | // the enclosing class has been instantiated. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 874 | SmallVector<ClassTemplatePartialSpecializationDecl *, 4> PartialSpecs; |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 875 | D->getPartialSpecializations(PartialSpecs); |
| 876 | for (unsigned I = 0, N = PartialSpecs.size(); I != N; ++I) |
| 877 | if (PartialSpecs[I]->isOutOfLine()) |
| 878 | OutOfLinePartialSpecs.push_back(std::make_pair(Inst, PartialSpecs[I])); |
| 879 | } |
| 880 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 881 | return Inst; |
| 882 | } |
| 883 | |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 884 | Decl * |
Douglas Gregor | 7974c3b | 2009-10-07 17:21:34 +0000 | [diff] [blame] | 885 | TemplateDeclInstantiator::VisitClassTemplatePartialSpecializationDecl( |
| 886 | ClassTemplatePartialSpecializationDecl *D) { |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 887 | ClassTemplateDecl *ClassTemplate = D->getSpecializedTemplate(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 888 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 889 | // Lookup the already-instantiated declaration in the instantiation |
| 890 | // of the class template and return that. |
| 891 | DeclContext::lookup_result Found |
| 892 | = Owner->lookup(ClassTemplate->getDeclName()); |
| 893 | if (Found.first == Found.second) |
| 894 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 895 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 896 | ClassTemplateDecl *InstClassTemplate |
| 897 | = dyn_cast<ClassTemplateDecl>(*Found.first); |
| 898 | if (!InstClassTemplate) |
| 899 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 900 | |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 901 | if (ClassTemplatePartialSpecializationDecl *Result |
| 902 | = InstClassTemplate->findPartialSpecInstantiatedFromMember(D)) |
| 903 | return Result; |
| 904 | |
| 905 | return InstantiateClassTemplatePartialSpecialization(InstClassTemplate, D); |
Douglas Gregor | 7974c3b | 2009-10-07 17:21:34 +0000 | [diff] [blame] | 906 | } |
| 907 | |
| 908 | Decl * |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 909 | TemplateDeclInstantiator::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) { |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 910 | // Create a local instantiation scope for this function template, which |
| 911 | // will contain the instantiations of the template parameters and then get |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 912 | // merged with the local instantiation scope for the function template |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 913 | // itself. |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 914 | LocalInstantiationScope Scope(SemaRef); |
Douglas Gregor | 895162d | 2010-04-30 18:55:50 +0000 | [diff] [blame] | 915 | |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 916 | TemplateParameterList *TempParams = D->getTemplateParameters(); |
| 917 | TemplateParameterList *InstParams = SubstTemplateParams(TempParams); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 918 | if (!InstParams) |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 919 | return NULL; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 920 | |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 921 | FunctionDecl *Instantiated = 0; |
| 922 | if (CXXMethodDecl *DMethod = dyn_cast<CXXMethodDecl>(D->getTemplatedDecl())) |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 923 | Instantiated = cast_or_null<FunctionDecl>(VisitCXXMethodDecl(DMethod, |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 924 | InstParams)); |
| 925 | else |
| 926 | Instantiated = cast_or_null<FunctionDecl>(VisitFunctionDecl( |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 927 | D->getTemplatedDecl(), |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 928 | InstParams)); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 929 | |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 930 | if (!Instantiated) |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 931 | return 0; |
| 932 | |
John McCall | 46460a6 | 2010-01-20 21:53:11 +0000 | [diff] [blame] | 933 | Instantiated->setAccess(D->getAccess()); |
| 934 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 935 | // Link the instantiated function template declaration to the function |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 936 | // template from which it was instantiated. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 937 | FunctionTemplateDecl *InstTemplate |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 938 | = Instantiated->getDescribedFunctionTemplate(); |
Douglas Gregor | 37d68185 | 2009-10-12 22:27:17 +0000 | [diff] [blame] | 939 | InstTemplate->setAccess(D->getAccess()); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 940 | assert(InstTemplate && |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 941 | "VisitFunctionDecl/CXXMethodDecl didn't create a template!"); |
John McCall | e976ffe | 2009-12-14 23:19:40 +0000 | [diff] [blame] | 942 | |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 943 | bool isFriend = (InstTemplate->getFriendObjectKind() != Decl::FOK_None); |
| 944 | |
John McCall | e976ffe | 2009-12-14 23:19:40 +0000 | [diff] [blame] | 945 | // Link the instantiation back to the pattern *unless* this is a |
| 946 | // non-definition friend declaration. |
| 947 | if (!InstTemplate->getInstantiatedFromMemberTemplate() && |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 948 | !(isFriend && !D->getTemplatedDecl()->isThisDeclarationADefinition())) |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 949 | InstTemplate->setInstantiatedFromMemberTemplate(D); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 950 | |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 951 | // Make declarations visible in the appropriate context. |
| 952 | if (!isFriend) |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 953 | Owner->addDecl(InstTemplate); |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 954 | |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 955 | return InstTemplate; |
| 956 | } |
| 957 | |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 958 | Decl *TemplateDeclInstantiator::VisitCXXRecordDecl(CXXRecordDecl *D) { |
| 959 | CXXRecordDecl *PrevDecl = 0; |
| 960 | if (D->isInjectedClassName()) |
| 961 | PrevDecl = cast<CXXRecordDecl>(Owner); |
John McCall | 6c1c1b8 | 2009-12-15 22:29:06 +0000 | [diff] [blame] | 962 | else if (D->getPreviousDeclaration()) { |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 963 | NamedDecl *Prev = SemaRef.FindInstantiatedDecl(D->getLocation(), |
| 964 | D->getPreviousDeclaration(), |
John McCall | 6c1c1b8 | 2009-12-15 22:29:06 +0000 | [diff] [blame] | 965 | TemplateArgs); |
| 966 | if (!Prev) return 0; |
| 967 | PrevDecl = cast<CXXRecordDecl>(Prev); |
| 968 | } |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 969 | |
| 970 | CXXRecordDecl *Record |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 971 | = CXXRecordDecl::Create(SemaRef.Context, D->getTagKind(), Owner, |
Abramo Bagnara | ba877ad | 2011-03-09 14:09:51 +0000 | [diff] [blame] | 972 | D->getLocStart(), D->getLocation(), |
| 973 | D->getIdentifier(), PrevDecl); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 974 | |
| 975 | // Substitute the nested name specifier, if any. |
| 976 | if (SubstQualifier(D, Record)) |
| 977 | return 0; |
| 978 | |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 979 | Record->setImplicit(D->isImplicit()); |
Eli Friedman | eaba1af | 2009-08-27 19:11:42 +0000 | [diff] [blame] | 980 | // FIXME: Check against AS_none is an ugly hack to work around the issue that |
| 981 | // the tag decls introduced by friend class declarations don't have an access |
| 982 | // specifier. Remove once this area of the code gets sorted out. |
| 983 | if (D->getAccess() != AS_none) |
| 984 | Record->setAccess(D->getAccess()); |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 985 | if (!D->isInjectedClassName()) |
Douglas Gregor | f6b1185 | 2009-10-08 15:14:33 +0000 | [diff] [blame] | 986 | Record->setInstantiationOfMemberClass(D, TSK_ImplicitInstantiation); |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 987 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 988 | // If the original function was part of a friend declaration, |
| 989 | // inherit its namespace state. |
| 990 | if (Decl::FriendObjectKind FOK = D->getFriendObjectKind()) |
| 991 | Record->setObjectOfFriendDecl(FOK == Decl::FOK_Declared); |
| 992 | |
Douglas Gregor | 9901c57 | 2010-05-21 00:31:19 +0000 | [diff] [blame] | 993 | // Make sure that anonymous structs and unions are recorded. |
| 994 | if (D->isAnonymousStructOrUnion()) { |
| 995 | Record->setAnonymousStructOrUnion(true); |
Sebastian Redl | 7a126a4 | 2010-08-31 00:36:30 +0000 | [diff] [blame] | 996 | if (Record->getDeclContext()->getRedeclContext()->isFunctionOrMethod()) |
Douglas Gregor | 9901c57 | 2010-05-21 00:31:19 +0000 | [diff] [blame] | 997 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Record); |
| 998 | } |
Anders Carlsson | d8b285f | 2009-09-01 04:26:58 +0000 | [diff] [blame] | 999 | |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 1000 | Owner->addDecl(Record); |
Douglas Gregor | d475b8d | 2009-03-25 21:17:03 +0000 | [diff] [blame] | 1001 | return Record; |
| 1002 | } |
| 1003 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 1004 | /// Normal class members are of more specific types and therefore |
| 1005 | /// don't make it here. This function serves two purposes: |
| 1006 | /// 1) instantiating function templates |
| 1007 | /// 2) substituting friend declarations |
| 1008 | /// FIXME: preserve function definitions in case #2 |
Douglas Gregor | 7557a13 | 2009-12-24 20:56:24 +0000 | [diff] [blame] | 1009 | Decl *TemplateDeclInstantiator::VisitFunctionDecl(FunctionDecl *D, |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1010 | TemplateParameterList *TemplateParams) { |
Douglas Gregor | 127102b | 2009-06-29 20:59:39 +0000 | [diff] [blame] | 1011 | // Check whether there is already a function template specialization for |
| 1012 | // this declaration. |
| 1013 | FunctionTemplateDecl *FunctionTemplate = D->getDescribedFunctionTemplate(); |
| 1014 | void *InsertPos = 0; |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1015 | if (FunctionTemplate && !TemplateParams) { |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1016 | std::pair<const TemplateArgument *, unsigned> Innermost |
Douglas Gregor | 24bae92 | 2010-07-08 18:37:38 +0000 | [diff] [blame] | 1017 | = TemplateArgs.getInnermost(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1018 | |
Argyrios Kyrtzidis | 2c853e4 | 2010-07-20 13:59:58 +0000 | [diff] [blame] | 1019 | FunctionDecl *SpecFunc |
| 1020 | = FunctionTemplate->findSpecialization(Innermost.first, Innermost.second, |
| 1021 | InsertPos); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1022 | |
Douglas Gregor | 127102b | 2009-06-29 20:59:39 +0000 | [diff] [blame] | 1023 | // If we already have a function template specialization, return it. |
Argyrios Kyrtzidis | 2c853e4 | 2010-07-20 13:59:58 +0000 | [diff] [blame] | 1024 | if (SpecFunc) |
| 1025 | return SpecFunc; |
Douglas Gregor | 127102b | 2009-06-29 20:59:39 +0000 | [diff] [blame] | 1026 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1027 | |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1028 | bool isFriend; |
| 1029 | if (FunctionTemplate) |
| 1030 | isFriend = (FunctionTemplate->getFriendObjectKind() != Decl::FOK_None); |
| 1031 | else |
| 1032 | isFriend = (D->getFriendObjectKind() != Decl::FOK_None); |
| 1033 | |
Douglas Gregor | 79c2278 | 2010-01-16 20:21:20 +0000 | [diff] [blame] | 1034 | bool MergeWithParentScope = (TemplateParams != 0) || |
Douglas Gregor | b212d9a | 2010-05-21 21:25:08 +0000 | [diff] [blame] | 1035 | Owner->isFunctionOrMethod() || |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1036 | !(isa<Decl>(Owner) && |
Douglas Gregor | 79c2278 | 2010-01-16 20:21:20 +0000 | [diff] [blame] | 1037 | cast<Decl>(Owner)->isDefinedOutsideFunctionOrMethod()); |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 1038 | LocalInstantiationScope Scope(SemaRef, MergeWithParentScope); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1039 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1040 | SmallVector<ParmVarDecl *, 4> Params; |
David Blaikie | 64b4b43 | 2011-11-10 05:42:04 +0000 | [diff] [blame^] | 1041 | TypeSourceInfo *TInfo = SubstFunctionType(D, Params); |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 1042 | if (!TInfo) |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1043 | return 0; |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 1044 | QualType T = TInfo->getType(); |
John McCall | fd810b1 | 2009-08-14 02:03:10 +0000 | [diff] [blame] | 1045 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1046 | NestedNameSpecifierLoc QualifierLoc = D->getQualifierLoc(); |
| 1047 | if (QualifierLoc) { |
| 1048 | QualifierLoc = SemaRef.SubstNestedNameSpecifierLoc(QualifierLoc, |
| 1049 | TemplateArgs); |
| 1050 | if (!QualifierLoc) |
| 1051 | return 0; |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1052 | } |
| 1053 | |
John McCall | 68b6b87 | 2010-02-06 01:50:47 +0000 | [diff] [blame] | 1054 | // If we're instantiating a local function declaration, put the result |
| 1055 | // in the owner; otherwise we need to find the instantiated context. |
| 1056 | DeclContext *DC; |
| 1057 | if (D->getDeclContext()->isFunctionOrMethod()) |
| 1058 | DC = Owner; |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1059 | else if (isFriend && QualifierLoc) { |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1060 | CXXScopeSpec SS; |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1061 | SS.Adopt(QualifierLoc); |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1062 | DC = SemaRef.computeDeclContext(SS); |
| 1063 | if (!DC) return 0; |
| 1064 | } else { |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1065 | DC = SemaRef.FindInstantiatedContext(D->getLocation(), D->getDeclContext(), |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 1066 | TemplateArgs); |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1067 | } |
John McCall | 68b6b87 | 2010-02-06 01:50:47 +0000 | [diff] [blame] | 1068 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 1069 | FunctionDecl *Function = |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1070 | FunctionDecl::Create(SemaRef.Context, DC, D->getInnerLocStart(), |
| 1071 | D->getLocation(), D->getDeclName(), T, TInfo, |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 1072 | D->getStorageClass(), D->getStorageClassAsWritten(), |
Richard Smith | af1fc7a | 2011-08-15 21:04:07 +0000 | [diff] [blame] | 1073 | D->isInlineSpecified(), D->hasWrittenPrototype(), |
Richard Smith | 9f569cc | 2011-10-01 02:31:28 +0000 | [diff] [blame] | 1074 | /*isConstexpr*/ false); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 1075 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1076 | if (QualifierLoc) |
| 1077 | Function->setQualifierInfo(QualifierLoc); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 1078 | |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 1079 | DeclContext *LexicalDC = Owner; |
| 1080 | if (!isFriend && D->isOutOfLine()) { |
| 1081 | assert(D->getDeclContext()->isFileContext()); |
| 1082 | LexicalDC = D->getDeclContext(); |
| 1083 | } |
| 1084 | |
| 1085 | Function->setLexicalDeclContext(LexicalDC); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1086 | |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 1087 | // Attach the parameters |
Douglas Gregor | 5cbe101 | 2011-07-05 18:30:26 +0000 | [diff] [blame] | 1088 | if (isa<FunctionProtoType>(Function->getType().IgnoreParens())) { |
Douglas Gregor | 1d441ee | 2011-06-22 18:16:25 +0000 | [diff] [blame] | 1089 | // Adopt the already-instantiated parameters into our own context. |
| 1090 | for (unsigned P = 0; P < Params.size(); ++P) |
| 1091 | if (Params[P]) |
| 1092 | Params[P]->setOwningFunction(Function); |
| 1093 | } else { |
| 1094 | // Since we were instantiated via a typedef of a function type, create |
| 1095 | // new parameters. |
| 1096 | const FunctionProtoType *Proto |
| 1097 | = Function->getType()->getAs<FunctionProtoType>(); |
| 1098 | assert(Proto && "No function prototype in template instantiation?"); |
| 1099 | for (FunctionProtoType::arg_type_iterator AI = Proto->arg_type_begin(), |
| 1100 | AE = Proto->arg_type_end(); AI != AE; ++AI) { |
| 1101 | ParmVarDecl *Param |
| 1102 | = SemaRef.BuildParmVarDeclForTypedef(Function, Function->getLocation(), |
| 1103 | *AI); |
| 1104 | Param->setScopeInfo(0, Params.size()); |
| 1105 | Params.push_back(Param); |
| 1106 | } |
| 1107 | } |
David Blaikie | 4278c65 | 2011-09-21 18:16:56 +0000 | [diff] [blame] | 1108 | Function->setParams(Params); |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 1109 | |
Douglas Gregor | ac7c2c8 | 2010-05-17 16:38:00 +0000 | [diff] [blame] | 1110 | SourceLocation InstantiateAtPOI; |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1111 | if (TemplateParams) { |
| 1112 | // Our resulting instantiation is actually a function template, since we |
| 1113 | // are substituting only the outer template parameters. For example, given |
| 1114 | // |
| 1115 | // template<typename T> |
| 1116 | // struct X { |
| 1117 | // template<typename U> friend void f(T, U); |
| 1118 | // }; |
| 1119 | // |
| 1120 | // X<int> x; |
| 1121 | // |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1122 | // We are instantiating the friend function template "f" within X<int>, |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1123 | // which means substituting int for T, but leaving "f" as a friend function |
| 1124 | // template. |
| 1125 | // Build the function template itself. |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1126 | FunctionTemplate = FunctionTemplateDecl::Create(SemaRef.Context, DC, |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1127 | Function->getLocation(), |
| 1128 | Function->getDeclName(), |
| 1129 | TemplateParams, Function); |
| 1130 | Function->setDescribedFunctionTemplate(FunctionTemplate); |
John McCall | b1a56e7 | 2010-03-26 23:10:15 +0000 | [diff] [blame] | 1131 | |
| 1132 | FunctionTemplate->setLexicalDeclContext(LexicalDC); |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1133 | |
| 1134 | if (isFriend && D->isThisDeclarationADefinition()) { |
| 1135 | // TODO: should we remember this connection regardless of whether |
| 1136 | // the friend declaration provided a body? |
| 1137 | FunctionTemplate->setInstantiatedFromMemberTemplate( |
| 1138 | D->getDescribedFunctionTemplate()); |
| 1139 | } |
Douglas Gregor | 66724ea | 2009-11-14 01:20:54 +0000 | [diff] [blame] | 1140 | } else if (FunctionTemplate) { |
| 1141 | // Record this function template specialization. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1142 | std::pair<const TemplateArgument *, unsigned> Innermost |
Douglas Gregor | 24bae92 | 2010-07-08 18:37:38 +0000 | [diff] [blame] | 1143 | = TemplateArgs.getInnermost(); |
Douglas Gregor | 838db38 | 2010-02-11 01:19:42 +0000 | [diff] [blame] | 1144 | Function->setFunctionTemplateSpecialization(FunctionTemplate, |
Douglas Gregor | 910f800 | 2010-11-07 23:05:16 +0000 | [diff] [blame] | 1145 | TemplateArgumentList::CreateCopy(SemaRef.Context, |
Douglas Gregor | 24bae92 | 2010-07-08 18:37:38 +0000 | [diff] [blame] | 1146 | Innermost.first, |
| 1147 | Innermost.second), |
Douglas Gregor | 66724ea | 2009-11-14 01:20:54 +0000 | [diff] [blame] | 1148 | InsertPos); |
Chandler Carruth | 80f5b16 | 2011-08-18 09:09:59 +0000 | [diff] [blame] | 1149 | } else if (isFriend) { |
| 1150 | // Note, we need this connection even if the friend doesn't have a body. |
| 1151 | // Its body may exist but not have been attached yet due to deferred |
| 1152 | // parsing. |
| 1153 | // FIXME: It might be cleaner to set this when attaching the body to the |
| 1154 | // friend function declaration, however that would require finding all the |
| 1155 | // instantiations and modifying them. |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1156 | Function->setInstantiationOfMemberFunction(D, TSK_ImplicitInstantiation); |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 1157 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1158 | |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 1159 | if (InitFunctionInstantiation(Function, D)) |
| 1160 | Function->setInvalidDecl(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1161 | |
John McCall | af2094e | 2010-04-08 09:05:18 +0000 | [diff] [blame] | 1162 | bool isExplicitSpecialization = false; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1163 | |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 1164 | LookupResult Previous(SemaRef, Function->getDeclName(), SourceLocation(), |
| 1165 | Sema::LookupOrdinaryName, Sema::ForRedeclaration); |
| 1166 | |
John McCall | af2094e | 2010-04-08 09:05:18 +0000 | [diff] [blame] | 1167 | if (DependentFunctionTemplateSpecializationInfo *Info |
| 1168 | = D->getDependentSpecializationInfo()) { |
| 1169 | assert(isFriend && "non-friend has dependent specialization info?"); |
| 1170 | |
| 1171 | // This needs to be set now for future sanity. |
| 1172 | Function->setObjectOfFriendDecl(/*HasPrevious*/ true); |
| 1173 | |
| 1174 | // Instantiate the explicit template arguments. |
| 1175 | TemplateArgumentListInfo ExplicitArgs(Info->getLAngleLoc(), |
| 1176 | Info->getRAngleLoc()); |
Douglas Gregor | e02e262 | 2010-12-22 21:19:48 +0000 | [diff] [blame] | 1177 | if (SemaRef.Subst(Info->getTemplateArgs(), Info->getNumTemplateArgs(), |
| 1178 | ExplicitArgs, TemplateArgs)) |
| 1179 | return 0; |
John McCall | af2094e | 2010-04-08 09:05:18 +0000 | [diff] [blame] | 1180 | |
| 1181 | // Map the candidate templates to their instantiations. |
| 1182 | for (unsigned I = 0, E = Info->getNumTemplates(); I != E; ++I) { |
| 1183 | Decl *Temp = SemaRef.FindInstantiatedDecl(D->getLocation(), |
| 1184 | Info->getTemplate(I), |
| 1185 | TemplateArgs); |
| 1186 | if (!Temp) return 0; |
| 1187 | |
| 1188 | Previous.addDecl(cast<FunctionTemplateDecl>(Temp)); |
| 1189 | } |
| 1190 | |
| 1191 | if (SemaRef.CheckFunctionTemplateSpecialization(Function, |
| 1192 | &ExplicitArgs, |
| 1193 | Previous)) |
| 1194 | Function->setInvalidDecl(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1195 | |
John McCall | af2094e | 2010-04-08 09:05:18 +0000 | [diff] [blame] | 1196 | isExplicitSpecialization = true; |
| 1197 | |
| 1198 | } else if (TemplateParams || !FunctionTemplate) { |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1199 | // Look only into the namespace where the friend would be declared to |
| 1200 | // find a previous declaration. This is the innermost enclosing namespace, |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1201 | // as described in ActOnFriendFunctionDecl. |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 1202 | SemaRef.LookupQualifiedName(Previous, DC); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1203 | |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1204 | // In C++, the previous declaration we find might be a tag type |
| 1205 | // (class or enum). In this case, the new declaration will hide the |
| 1206 | // tag type. Note that this does does not apply if we're declaring a |
| 1207 | // typedef (C++ [dcl.typedef]p4). |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 1208 | if (Previous.isSingleTagDecl()) |
| 1209 | Previous.clear(); |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1210 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1211 | |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1212 | SemaRef.CheckFunctionDeclaration(/*Scope*/ 0, Function, Previous, |
Kaelyn Uhrain | 2c712f5 | 2011-10-11 00:28:45 +0000 | [diff] [blame] | 1213 | isExplicitSpecialization); |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1214 | |
John McCall | 76d3264 | 2010-04-24 01:30:58 +0000 | [diff] [blame] | 1215 | NamedDecl *PrincipalDecl = (TemplateParams |
| 1216 | ? cast<NamedDecl>(FunctionTemplate) |
| 1217 | : Function); |
| 1218 | |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1219 | // If the original function was part of a friend declaration, |
| 1220 | // inherit its namespace state and add it to the owner. |
John McCall | d325daa | 2010-03-26 04:53:08 +0000 | [diff] [blame] | 1221 | if (isFriend) { |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 1222 | NamedDecl *PrevDecl; |
John McCall | 76d3264 | 2010-04-24 01:30:58 +0000 | [diff] [blame] | 1223 | if (TemplateParams) |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1224 | PrevDecl = FunctionTemplate->getPreviousDeclaration(); |
John McCall | 76d3264 | 2010-04-24 01:30:58 +0000 | [diff] [blame] | 1225 | else |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1226 | PrevDecl = Function->getPreviousDeclaration(); |
John McCall | 76d3264 | 2010-04-24 01:30:58 +0000 | [diff] [blame] | 1227 | |
| 1228 | PrincipalDecl->setObjectOfFriendDecl(PrevDecl != 0); |
| 1229 | DC->makeDeclVisibleInContext(PrincipalDecl, /*Recoverable=*/ false); |
Gabor Greif | ab297ac | 2010-08-30 21:10:05 +0000 | [diff] [blame] | 1230 | |
Gabor Greif | 77535df | 2010-08-30 22:25:56 +0000 | [diff] [blame] | 1231 | bool queuedInstantiation = false; |
Gabor Greif | ab297ac | 2010-08-30 21:10:05 +0000 | [diff] [blame] | 1232 | |
Richard Smith | 53e5351 | 2011-10-19 00:54:10 +0000 | [diff] [blame] | 1233 | // C++98 [temp.friend]p5: When a function is defined in a friend function |
| 1234 | // declaration in a class template, the function is defined at each |
| 1235 | // instantiation of the class template. The function is defined even if it |
| 1236 | // is never used. |
| 1237 | // C++11 [temp.friend]p4: When a function is defined in a friend function |
| 1238 | // declaration in a class template, the function is instantiated when the |
| 1239 | // function is odr-used. |
| 1240 | // |
| 1241 | // If -Wc++98-compat is enabled, we go through the motions of checking for a |
| 1242 | // redefinition, but don't instantiate the function. |
| 1243 | if ((!SemaRef.getLangOptions().CPlusPlus0x || |
| 1244 | SemaRef.Diags.getDiagnosticLevel( |
| 1245 | diag::warn_cxx98_compat_friend_redefinition, |
| 1246 | Function->getLocation()) |
| 1247 | != DiagnosticsEngine::Ignored) && |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1248 | D->isThisDeclarationADefinition()) { |
| 1249 | // Check for a function body. |
| 1250 | const FunctionDecl *Definition = 0; |
Sean Hunt | 10620eb | 2011-05-06 20:44:56 +0000 | [diff] [blame] | 1251 | if (Function->isDefined(Definition) && |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1252 | Definition->getTemplateSpecializationKind() == TSK_Undeclared) { |
Richard Smith | 53e5351 | 2011-10-19 00:54:10 +0000 | [diff] [blame] | 1253 | SemaRef.Diag(Function->getLocation(), |
| 1254 | SemaRef.getLangOptions().CPlusPlus0x ? |
| 1255 | diag::warn_cxx98_compat_friend_redefinition : |
| 1256 | diag::err_redefinition) << Function->getDeclName(); |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1257 | SemaRef.Diag(Definition->getLocation(), diag::note_previous_definition); |
Richard Smith | 53e5351 | 2011-10-19 00:54:10 +0000 | [diff] [blame] | 1258 | if (!SemaRef.getLangOptions().CPlusPlus0x) |
| 1259 | Function->setInvalidDecl(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1260 | } |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1261 | // Check for redefinitions due to other instantiations of this or |
| 1262 | // a similar friend function. |
| 1263 | else for (FunctionDecl::redecl_iterator R = Function->redecls_begin(), |
| 1264 | REnd = Function->redecls_end(); |
| 1265 | R != REnd; ++R) { |
Gabor Greif | 13a8aff | 2010-08-28 15:42:30 +0000 | [diff] [blame] | 1266 | if (*R == Function) |
| 1267 | continue; |
Gabor Greif | ab297ac | 2010-08-30 21:10:05 +0000 | [diff] [blame] | 1268 | switch (R->getFriendObjectKind()) { |
| 1269 | case Decl::FOK_None: |
Richard Smith | 53e5351 | 2011-10-19 00:54:10 +0000 | [diff] [blame] | 1270 | if (!SemaRef.getLangOptions().CPlusPlus0x && |
| 1271 | !queuedInstantiation && R->isUsed(false)) { |
Gabor Greif | ab297ac | 2010-08-30 21:10:05 +0000 | [diff] [blame] | 1272 | if (MemberSpecializationInfo *MSInfo |
| 1273 | = Function->getMemberSpecializationInfo()) { |
| 1274 | if (MSInfo->getPointOfInstantiation().isInvalid()) { |
| 1275 | SourceLocation Loc = R->getLocation(); // FIXME |
| 1276 | MSInfo->setPointOfInstantiation(Loc); |
| 1277 | SemaRef.PendingLocalImplicitInstantiations.push_back( |
| 1278 | std::make_pair(Function, Loc)); |
| 1279 | queuedInstantiation = true; |
| 1280 | } |
| 1281 | } |
| 1282 | } |
| 1283 | break; |
| 1284 | default: |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1285 | if (const FunctionDecl *RPattern |
Gabor Greif | 6a557d8 | 2010-08-28 15:46:56 +0000 | [diff] [blame] | 1286 | = R->getTemplateInstantiationPattern()) |
Sean Hunt | 10620eb | 2011-05-06 20:44:56 +0000 | [diff] [blame] | 1287 | if (RPattern->isDefined(RPattern)) { |
Richard Smith | 53e5351 | 2011-10-19 00:54:10 +0000 | [diff] [blame] | 1288 | SemaRef.Diag(Function->getLocation(), |
| 1289 | SemaRef.getLangOptions().CPlusPlus0x ? |
| 1290 | diag::warn_cxx98_compat_friend_redefinition : |
| 1291 | diag::err_redefinition) |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1292 | << Function->getDeclName(); |
Gabor Greif | 6a557d8 | 2010-08-28 15:46:56 +0000 | [diff] [blame] | 1293 | SemaRef.Diag(R->getLocation(), diag::note_previous_definition); |
Richard Smith | 53e5351 | 2011-10-19 00:54:10 +0000 | [diff] [blame] | 1294 | if (!SemaRef.getLangOptions().CPlusPlus0x) |
| 1295 | Function->setInvalidDecl(); |
Douglas Gregor | 238058c | 2010-05-18 05:45:02 +0000 | [diff] [blame] | 1296 | break; |
| 1297 | } |
| 1298 | } |
| 1299 | } |
| 1300 | } |
Douglas Gregor | a735b20 | 2009-10-13 14:39:41 +0000 | [diff] [blame] | 1301 | } |
| 1302 | |
John McCall | 76d3264 | 2010-04-24 01:30:58 +0000 | [diff] [blame] | 1303 | if (Function->isOverloadedOperator() && !DC->isRecord() && |
| 1304 | PrincipalDecl->isInIdentifierNamespace(Decl::IDNS_Ordinary)) |
| 1305 | PrincipalDecl->setNonMemberOperator(); |
| 1306 | |
Sean Hunt | eb88ae5 | 2011-05-23 21:07:59 +0000 | [diff] [blame] | 1307 | assert(!D->isDefaulted() && "only methods should be defaulted"); |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 1308 | return Function; |
| 1309 | } |
| 1310 | |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1311 | Decl * |
| 1312 | TemplateDeclInstantiator::VisitCXXMethodDecl(CXXMethodDecl *D, |
Francois Pichet | af0f4d0 | 2011-08-14 03:52:19 +0000 | [diff] [blame] | 1313 | TemplateParameterList *TemplateParams, |
| 1314 | bool IsClassScopeSpecialization) { |
Douglas Gregor | 6b90686 | 2009-08-21 00:16:32 +0000 | [diff] [blame] | 1315 | FunctionTemplateDecl *FunctionTemplate = D->getDescribedFunctionTemplate(); |
| 1316 | void *InsertPos = 0; |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1317 | if (FunctionTemplate && !TemplateParams) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1318 | // We are creating a function template specialization from a function |
| 1319 | // template. Check whether there is already a function template |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1320 | // specialization for this particular set of template arguments. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1321 | std::pair<const TemplateArgument *, unsigned> Innermost |
Douglas Gregor | 24bae92 | 2010-07-08 18:37:38 +0000 | [diff] [blame] | 1322 | = TemplateArgs.getInnermost(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1323 | |
Argyrios Kyrtzidis | 2c853e4 | 2010-07-20 13:59:58 +0000 | [diff] [blame] | 1324 | FunctionDecl *SpecFunc |
| 1325 | = FunctionTemplate->findSpecialization(Innermost.first, Innermost.second, |
| 1326 | InsertPos); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1327 | |
Douglas Gregor | 6b90686 | 2009-08-21 00:16:32 +0000 | [diff] [blame] | 1328 | // If we already have a function template specialization, return it. |
Argyrios Kyrtzidis | 2c853e4 | 2010-07-20 13:59:58 +0000 | [diff] [blame] | 1329 | if (SpecFunc) |
| 1330 | return SpecFunc; |
Douglas Gregor | 6b90686 | 2009-08-21 00:16:32 +0000 | [diff] [blame] | 1331 | } |
| 1332 | |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1333 | bool isFriend; |
| 1334 | if (FunctionTemplate) |
| 1335 | isFriend = (FunctionTemplate->getFriendObjectKind() != Decl::FOK_None); |
| 1336 | else |
| 1337 | isFriend = (D->getFriendObjectKind() != Decl::FOK_None); |
| 1338 | |
Douglas Gregor | 79c2278 | 2010-01-16 20:21:20 +0000 | [diff] [blame] | 1339 | bool MergeWithParentScope = (TemplateParams != 0) || |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1340 | !(isa<Decl>(Owner) && |
Douglas Gregor | 79c2278 | 2010-01-16 20:21:20 +0000 | [diff] [blame] | 1341 | cast<Decl>(Owner)->isDefinedOutsideFunctionOrMethod()); |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 1342 | LocalInstantiationScope Scope(SemaRef, MergeWithParentScope); |
Douglas Gregor | 48dd19b | 2009-05-14 21:44:34 +0000 | [diff] [blame] | 1343 | |
John McCall | 4eab39f | 2010-10-19 02:26:41 +0000 | [diff] [blame] | 1344 | // Instantiate enclosing template arguments for friends. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1345 | SmallVector<TemplateParameterList *, 4> TempParamLists; |
John McCall | 4eab39f | 2010-10-19 02:26:41 +0000 | [diff] [blame] | 1346 | unsigned NumTempParamLists = 0; |
| 1347 | if (isFriend && (NumTempParamLists = D->getNumTemplateParameterLists())) { |
| 1348 | TempParamLists.set_size(NumTempParamLists); |
| 1349 | for (unsigned I = 0; I != NumTempParamLists; ++I) { |
| 1350 | TemplateParameterList *TempParams = D->getTemplateParameterList(I); |
| 1351 | TemplateParameterList *InstParams = SubstTemplateParams(TempParams); |
| 1352 | if (!InstParams) |
| 1353 | return NULL; |
| 1354 | TempParamLists[I] = InstParams; |
| 1355 | } |
| 1356 | } |
| 1357 | |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1358 | SmallVector<ParmVarDecl *, 4> Params; |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 1359 | TypeSourceInfo *TInfo = D->getTypeSourceInfo(); |
| 1360 | TInfo = SubstFunctionType(D, Params); |
| 1361 | if (!TInfo) |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1362 | return 0; |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 1363 | QualType T = TInfo->getType(); |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1364 | |
Abramo Bagnara | 723df24 | 2010-12-14 22:11:44 +0000 | [diff] [blame] | 1365 | // \brief If the type of this function, after ignoring parentheses, |
| 1366 | // is not *directly* a function type, then we're instantiating a function |
| 1367 | // that was declared via a typedef, e.g., |
Douglas Gregor | 5f970ee | 2010-05-04 18:18:31 +0000 | [diff] [blame] | 1368 | // |
| 1369 | // typedef int functype(int, int); |
| 1370 | // functype func; |
| 1371 | // |
| 1372 | // In this case, we'll just go instantiate the ParmVarDecls that we |
| 1373 | // synthesized in the method declaration. |
Abramo Bagnara | 723df24 | 2010-12-14 22:11:44 +0000 | [diff] [blame] | 1374 | if (!isa<FunctionProtoType>(T.IgnoreParens())) { |
Douglas Gregor | 5f970ee | 2010-05-04 18:18:31 +0000 | [diff] [blame] | 1375 | assert(!Params.size() && "Instantiating type could not yield parameters"); |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1376 | SmallVector<QualType, 4> ParamTypes; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1377 | if (SemaRef.SubstParmTypes(D->getLocation(), D->param_begin(), |
| 1378 | D->getNumParams(), TemplateArgs, ParamTypes, |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 1379 | &Params)) |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1380 | return 0; |
Douglas Gregor | 5f970ee | 2010-05-04 18:18:31 +0000 | [diff] [blame] | 1381 | } |
| 1382 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1383 | NestedNameSpecifierLoc QualifierLoc = D->getQualifierLoc(); |
| 1384 | if (QualifierLoc) { |
| 1385 | QualifierLoc = SemaRef.SubstNestedNameSpecifierLoc(QualifierLoc, |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1386 | TemplateArgs); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1387 | if (!QualifierLoc) |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1388 | return 0; |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1389 | } |
| 1390 | |
| 1391 | DeclContext *DC = Owner; |
| 1392 | if (isFriend) { |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1393 | if (QualifierLoc) { |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1394 | CXXScopeSpec SS; |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1395 | SS.Adopt(QualifierLoc); |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1396 | DC = SemaRef.computeDeclContext(SS); |
John McCall | c54d688 | 2010-10-19 05:01:53 +0000 | [diff] [blame] | 1397 | |
| 1398 | if (DC && SemaRef.RequireCompleteDeclContext(SS, DC)) |
| 1399 | return 0; |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1400 | } else { |
| 1401 | DC = SemaRef.FindInstantiatedContext(D->getLocation(), |
| 1402 | D->getDeclContext(), |
| 1403 | TemplateArgs); |
| 1404 | } |
| 1405 | if (!DC) return 0; |
| 1406 | } |
| 1407 | |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1408 | // Build the instantiated method declaration. |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1409 | CXXRecordDecl *Record = cast<CXXRecordDecl>(DC); |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1410 | CXXMethodDecl *Method = 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1411 | |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1412 | SourceLocation StartLoc = D->getInnerLocStart(); |
Abramo Bagnara | 2577743 | 2010-08-11 22:01:17 +0000 | [diff] [blame] | 1413 | DeclarationNameInfo NameInfo |
| 1414 | = SemaRef.SubstDeclarationNameInfo(D->getNameInfo(), TemplateArgs); |
Douglas Gregor | 17e32f3 | 2009-08-21 22:43:28 +0000 | [diff] [blame] | 1415 | if (CXXConstructorDecl *Constructor = dyn_cast<CXXConstructorDecl>(D)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1416 | Method = CXXConstructorDecl::Create(SemaRef.Context, Record, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1417 | StartLoc, NameInfo, T, TInfo, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1418 | Constructor->isExplicit(), |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 1419 | Constructor->isInlineSpecified(), |
Richard Smith | 9f569cc | 2011-10-01 02:31:28 +0000 | [diff] [blame] | 1420 | false, /*isConstexpr*/ false); |
Douglas Gregor | 17e32f3 | 2009-08-21 22:43:28 +0000 | [diff] [blame] | 1421 | } else if (CXXDestructorDecl *Destructor = dyn_cast<CXXDestructorDecl>(D)) { |
Douglas Gregor | 17e32f3 | 2009-08-21 22:43:28 +0000 | [diff] [blame] | 1422 | Method = CXXDestructorDecl::Create(SemaRef.Context, Record, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1423 | StartLoc, NameInfo, T, TInfo, |
Abramo Bagnara | 2577743 | 2010-08-11 22:01:17 +0000 | [diff] [blame] | 1424 | Destructor->isInlineSpecified(), |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 1425 | false); |
Douglas Gregor | 65ec1fd | 2009-08-21 23:19:43 +0000 | [diff] [blame] | 1426 | } else if (CXXConversionDecl *Conversion = dyn_cast<CXXConversionDecl>(D)) { |
Douglas Gregor | 65ec1fd | 2009-08-21 23:19:43 +0000 | [diff] [blame] | 1427 | Method = CXXConversionDecl::Create(SemaRef.Context, Record, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1428 | StartLoc, NameInfo, T, TInfo, |
Douglas Gregor | 0130f3c | 2009-10-27 21:01:01 +0000 | [diff] [blame] | 1429 | Conversion->isInlineSpecified(), |
Douglas Gregor | f525160 | 2011-03-08 17:10:18 +0000 | [diff] [blame] | 1430 | Conversion->isExplicit(), |
Richard Smith | 9f569cc | 2011-10-01 02:31:28 +0000 | [diff] [blame] | 1431 | /*isConstexpr*/ false, |
| 1432 | Conversion->getLocEnd()); |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1433 | } else { |
Abramo Bagnara | 2577743 | 2010-08-11 22:01:17 +0000 | [diff] [blame] | 1434 | Method = CXXMethodDecl::Create(SemaRef.Context, Record, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1435 | StartLoc, NameInfo, T, TInfo, |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 1436 | D->isStatic(), |
| 1437 | D->getStorageClassAsWritten(), |
Douglas Gregor | f525160 | 2011-03-08 17:10:18 +0000 | [diff] [blame] | 1438 | D->isInlineSpecified(), |
Richard Smith | 9f569cc | 2011-10-01 02:31:28 +0000 | [diff] [blame] | 1439 | /*isConstexpr*/ false, D->getLocEnd()); |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1440 | } |
Douglas Gregor | 6b90686 | 2009-08-21 00:16:32 +0000 | [diff] [blame] | 1441 | |
Douglas Gregor | c22b5ff | 2011-02-25 02:25:35 +0000 | [diff] [blame] | 1442 | if (QualifierLoc) |
| 1443 | Method->setQualifierInfo(QualifierLoc); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 1444 | |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1445 | if (TemplateParams) { |
| 1446 | // Our resulting instantiation is actually a function template, since we |
| 1447 | // are substituting only the outer template parameters. For example, given |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1448 | // |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1449 | // template<typename T> |
| 1450 | // struct X { |
| 1451 | // template<typename U> void f(T, U); |
| 1452 | // }; |
| 1453 | // |
| 1454 | // X<int> x; |
| 1455 | // |
| 1456 | // We are instantiating the member template "f" within X<int>, which means |
| 1457 | // substituting int for T, but leaving "f" as a member function template. |
| 1458 | // Build the function template itself. |
| 1459 | FunctionTemplate = FunctionTemplateDecl::Create(SemaRef.Context, Record, |
| 1460 | Method->getLocation(), |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1461 | Method->getDeclName(), |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1462 | TemplateParams, Method); |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1463 | if (isFriend) { |
| 1464 | FunctionTemplate->setLexicalDeclContext(Owner); |
| 1465 | FunctionTemplate->setObjectOfFriendDecl(true); |
| 1466 | } else if (D->isOutOfLine()) |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1467 | FunctionTemplate->setLexicalDeclContext(D->getLexicalDeclContext()); |
Douglas Gregor | d60e105 | 2009-08-27 16:57:43 +0000 | [diff] [blame] | 1468 | Method->setDescribedFunctionTemplate(FunctionTemplate); |
Douglas Gregor | 66724ea | 2009-11-14 01:20:54 +0000 | [diff] [blame] | 1469 | } else if (FunctionTemplate) { |
| 1470 | // Record this function template specialization. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1471 | std::pair<const TemplateArgument *, unsigned> Innermost |
Douglas Gregor | 24bae92 | 2010-07-08 18:37:38 +0000 | [diff] [blame] | 1472 | = TemplateArgs.getInnermost(); |
Douglas Gregor | 838db38 | 2010-02-11 01:19:42 +0000 | [diff] [blame] | 1473 | Method->setFunctionTemplateSpecialization(FunctionTemplate, |
Douglas Gregor | 910f800 | 2010-11-07 23:05:16 +0000 | [diff] [blame] | 1474 | TemplateArgumentList::CreateCopy(SemaRef.Context, |
| 1475 | Innermost.first, |
| 1476 | Innermost.second), |
Douglas Gregor | 66724ea | 2009-11-14 01:20:54 +0000 | [diff] [blame] | 1477 | InsertPos); |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1478 | } else if (!isFriend) { |
Douglas Gregor | 66724ea | 2009-11-14 01:20:54 +0000 | [diff] [blame] | 1479 | // Record that this is an instantiation of a member function. |
Douglas Gregor | 2db3232 | 2009-10-07 23:56:10 +0000 | [diff] [blame] | 1480 | Method->setInstantiationOfMemberFunction(D, TSK_ImplicitInstantiation); |
Douglas Gregor | 66724ea | 2009-11-14 01:20:54 +0000 | [diff] [blame] | 1481 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1482 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1483 | // If we are instantiating a member function defined |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 1484 | // out-of-line, the instantiation will have the same lexical |
| 1485 | // context (which will be a namespace scope) as the template. |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1486 | if (isFriend) { |
John McCall | 4eab39f | 2010-10-19 02:26:41 +0000 | [diff] [blame] | 1487 | if (NumTempParamLists) |
| 1488 | Method->setTemplateParameterListsInfo(SemaRef.Context, |
| 1489 | NumTempParamLists, |
| 1490 | TempParamLists.data()); |
| 1491 | |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1492 | Method->setLexicalDeclContext(Owner); |
| 1493 | Method->setObjectOfFriendDecl(true); |
| 1494 | } else if (D->isOutOfLine()) |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 1495 | Method->setLexicalDeclContext(D->getLexicalDeclContext()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1496 | |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 1497 | // Attach the parameters |
| 1498 | for (unsigned P = 0; P < Params.size(); ++P) |
| 1499 | Params[P]->setOwningFunction(Method); |
David Blaikie | 4278c65 | 2011-09-21 18:16:56 +0000 | [diff] [blame] | 1500 | Method->setParams(Params); |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 1501 | |
| 1502 | if (InitMethodInstantiation(Method, D)) |
| 1503 | Method->setInvalidDecl(); |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1504 | |
Abramo Bagnara | 2577743 | 2010-08-11 22:01:17 +0000 | [diff] [blame] | 1505 | LookupResult Previous(SemaRef, NameInfo, Sema::LookupOrdinaryName, |
| 1506 | Sema::ForRedeclaration); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1507 | |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1508 | if (!FunctionTemplate || TemplateParams || isFriend) { |
| 1509 | SemaRef.LookupQualifiedName(Previous, Record); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1510 | |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1511 | // In C++, the previous declaration we find might be a tag type |
| 1512 | // (class or enum). In this case, the new declaration will hide the |
| 1513 | // tag type. Note that this does does not apply if we're declaring a |
| 1514 | // typedef (C++ [dcl.typedef]p4). |
John McCall | 6826314 | 2009-11-18 22:49:29 +0000 | [diff] [blame] | 1515 | if (Previous.isSingleTagDecl()) |
| 1516 | Previous.clear(); |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1517 | } |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1518 | |
Francois Pichet | af0f4d0 | 2011-08-14 03:52:19 +0000 | [diff] [blame] | 1519 | if (!IsClassScopeSpecialization) |
Kaelyn Uhrain | 2c712f5 | 2011-10-11 00:28:45 +0000 | [diff] [blame] | 1520 | SemaRef.CheckFunctionDeclaration(0, Method, Previous, false); |
Douglas Gregor | 65ec1fd | 2009-08-21 23:19:43 +0000 | [diff] [blame] | 1521 | |
Douglas Gregor | 4ba3136 | 2009-12-01 17:24:26 +0000 | [diff] [blame] | 1522 | if (D->isPure()) |
| 1523 | SemaRef.CheckPureMethod(Method, SourceRange()); |
| 1524 | |
John McCall | 46460a6 | 2010-01-20 21:53:11 +0000 | [diff] [blame] | 1525 | Method->setAccess(D->getAccess()); |
| 1526 | |
Anders Carlsson | 9eefa22 | 2011-01-20 06:52:44 +0000 | [diff] [blame] | 1527 | SemaRef.CheckOverrideControl(Method); |
| 1528 | |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1529 | if (FunctionTemplate) { |
| 1530 | // If there's a function template, let our caller handle it. |
| 1531 | } else if (Method->isInvalidDecl() && !Previous.empty()) { |
| 1532 | // Don't hide a (potentially) valid declaration with an invalid one. |
| 1533 | } else { |
| 1534 | NamedDecl *DeclToAdd = (TemplateParams |
| 1535 | ? cast<NamedDecl>(FunctionTemplate) |
| 1536 | : Method); |
| 1537 | if (isFriend) |
| 1538 | Record->makeDeclVisibleInContext(DeclToAdd); |
Francois Pichet | af0f4d0 | 2011-08-14 03:52:19 +0000 | [diff] [blame] | 1539 | else if (!IsClassScopeSpecialization) |
John McCall | b0cb022 | 2010-03-27 05:57:59 +0000 | [diff] [blame] | 1540 | Owner->addDecl(DeclToAdd); |
| 1541 | } |
Sean Hunt | eb88ae5 | 2011-05-23 21:07:59 +0000 | [diff] [blame] | 1542 | |
| 1543 | if (D->isExplicitlyDefaulted()) { |
| 1544 | SemaRef.SetDeclDefaulted(Method, Method->getLocation()); |
| 1545 | } else { |
| 1546 | assert(!D->isDefaulted() && |
| 1547 | "should not implicitly default uninstantiated function"); |
| 1548 | } |
| 1549 | |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1550 | return Method; |
| 1551 | } |
| 1552 | |
Douglas Gregor | 615c5d4 | 2009-03-24 16:43:20 +0000 | [diff] [blame] | 1553 | Decl *TemplateDeclInstantiator::VisitCXXConstructorDecl(CXXConstructorDecl *D) { |
Douglas Gregor | dec0666 | 2009-08-21 18:42:58 +0000 | [diff] [blame] | 1554 | return VisitCXXMethodDecl(D); |
Douglas Gregor | 615c5d4 | 2009-03-24 16:43:20 +0000 | [diff] [blame] | 1555 | } |
| 1556 | |
Douglas Gregor | 03b2b07 | 2009-03-24 00:15:49 +0000 | [diff] [blame] | 1557 | Decl *TemplateDeclInstantiator::VisitCXXDestructorDecl(CXXDestructorDecl *D) { |
Douglas Gregor | 17e32f3 | 2009-08-21 22:43:28 +0000 | [diff] [blame] | 1558 | return VisitCXXMethodDecl(D); |
Douglas Gregor | 03b2b07 | 2009-03-24 00:15:49 +0000 | [diff] [blame] | 1559 | } |
| 1560 | |
Douglas Gregor | bb969ed | 2009-03-25 00:34:44 +0000 | [diff] [blame] | 1561 | Decl *TemplateDeclInstantiator::VisitCXXConversionDecl(CXXConversionDecl *D) { |
Douglas Gregor | 65ec1fd | 2009-08-21 23:19:43 +0000 | [diff] [blame] | 1562 | return VisitCXXMethodDecl(D); |
Douglas Gregor | bb969ed | 2009-03-25 00:34:44 +0000 | [diff] [blame] | 1563 | } |
| 1564 | |
Douglas Gregor | 6477b69 | 2009-03-25 15:04:13 +0000 | [diff] [blame] | 1565 | ParmVarDecl *TemplateDeclInstantiator::VisitParmVarDecl(ParmVarDecl *D) { |
John McCall | fb44de9 | 2011-05-01 22:35:37 +0000 | [diff] [blame] | 1566 | return SemaRef.SubstParmVarDecl(D, TemplateArgs, /*indexAdjustment*/ 0, |
| 1567 | llvm::Optional<unsigned>()); |
Douglas Gregor | 2dc0e64 | 2009-03-23 23:06:20 +0000 | [diff] [blame] | 1568 | } |
| 1569 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1570 | Decl *TemplateDeclInstantiator::VisitTemplateTypeParmDecl( |
| 1571 | TemplateTypeParmDecl *D) { |
| 1572 | // TODO: don't always clone when decls are refcounted. |
Chandler Carruth | 4fb86f8 | 2011-05-01 00:51:33 +0000 | [diff] [blame] | 1573 | assert(D->getTypeForDecl()->isTemplateTypeParmType()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1574 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1575 | TemplateTypeParmDecl *Inst = |
Abramo Bagnara | 344577e | 2011-03-06 15:48:19 +0000 | [diff] [blame] | 1576 | TemplateTypeParmDecl::Create(SemaRef.Context, Owner, |
| 1577 | D->getLocStart(), D->getLocation(), |
Chandler Carruth | 4fb86f8 | 2011-05-01 00:51:33 +0000 | [diff] [blame] | 1578 | D->getDepth() - TemplateArgs.getNumLevels(), |
| 1579 | D->getIndex(), D->getIdentifier(), |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1580 | D->wasDeclaredWithTypename(), |
| 1581 | D->isParameterPack()); |
Douglas Gregor | 9a299e0 | 2011-03-04 17:52:15 +0000 | [diff] [blame] | 1582 | Inst->setAccess(AS_public); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1583 | |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1584 | if (D->hasDefaultArgument()) |
| 1585 | Inst->setDefaultArgument(D->getDefaultArgumentInfo(), false); |
| 1586 | |
| 1587 | // Introduce this template parameter's instantiation into the instantiation |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 1588 | // scope. |
| 1589 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Inst); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1590 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1591 | return Inst; |
| 1592 | } |
| 1593 | |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1594 | Decl *TemplateDeclInstantiator::VisitNonTypeTemplateParmDecl( |
| 1595 | NonTypeTemplateParmDecl *D) { |
| 1596 | // Substitute into the type of the non-type template parameter. |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1597 | TypeLoc TL = D->getTypeSourceInfo()->getTypeLoc(); |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1598 | SmallVector<TypeSourceInfo *, 4> ExpandedParameterPackTypesAsWritten; |
| 1599 | SmallVector<QualType, 4> ExpandedParameterPackTypes; |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1600 | bool IsExpandedParameterPack = false; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1601 | TypeSourceInfo *DI; |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1602 | QualType T; |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1603 | bool Invalid = false; |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1604 | |
| 1605 | if (D->isExpandedParameterPack()) { |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1606 | // The non-type template parameter pack is an already-expanded pack |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1607 | // expansion of types. Substitute into each of the expanded types. |
| 1608 | ExpandedParameterPackTypes.reserve(D->getNumExpansionTypes()); |
| 1609 | ExpandedParameterPackTypesAsWritten.reserve(D->getNumExpansionTypes()); |
| 1610 | for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) { |
| 1611 | TypeSourceInfo *NewDI =SemaRef.SubstType(D->getExpansionTypeSourceInfo(I), |
| 1612 | TemplateArgs, |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1613 | D->getLocation(), |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1614 | D->getDeclName()); |
| 1615 | if (!NewDI) |
| 1616 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1617 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1618 | ExpandedParameterPackTypesAsWritten.push_back(NewDI); |
| 1619 | QualType NewT =SemaRef.CheckNonTypeTemplateParameterType(NewDI->getType(), |
| 1620 | D->getLocation()); |
| 1621 | if (NewT.isNull()) |
| 1622 | return 0; |
| 1623 | ExpandedParameterPackTypes.push_back(NewT); |
| 1624 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1625 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1626 | IsExpandedParameterPack = true; |
| 1627 | DI = D->getTypeSourceInfo(); |
| 1628 | T = DI->getType(); |
| 1629 | } else if (isa<PackExpansionTypeLoc>(TL)) { |
| 1630 | // The non-type template parameter pack's type is a pack expansion of types. |
| 1631 | // Determine whether we need to expand this parameter pack into separate |
| 1632 | // types. |
| 1633 | PackExpansionTypeLoc Expansion = cast<PackExpansionTypeLoc>(TL); |
| 1634 | TypeLoc Pattern = Expansion.getPatternLoc(); |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1635 | SmallVector<UnexpandedParameterPack, 2> Unexpanded; |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1636 | SemaRef.collectUnexpandedParameterPacks(Pattern, Unexpanded); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1637 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1638 | // Determine whether the set of unexpanded parameter packs can and should |
| 1639 | // be expanded. |
| 1640 | bool Expand = true; |
| 1641 | bool RetainExpansion = false; |
| 1642 | llvm::Optional<unsigned> OrigNumExpansions |
| 1643 | = Expansion.getTypePtr()->getNumExpansions(); |
| 1644 | llvm::Optional<unsigned> NumExpansions = OrigNumExpansions; |
| 1645 | if (SemaRef.CheckParameterPacksForExpansion(Expansion.getEllipsisLoc(), |
| 1646 | Pattern.getSourceRange(), |
David Blaikie | a71f9d0 | 2011-09-22 02:34:54 +0000 | [diff] [blame] | 1647 | Unexpanded, |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1648 | TemplateArgs, |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1649 | Expand, RetainExpansion, |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1650 | NumExpansions)) |
| 1651 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1652 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1653 | if (Expand) { |
| 1654 | for (unsigned I = 0; I != *NumExpansions; ++I) { |
| 1655 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, I); |
| 1656 | TypeSourceInfo *NewDI = SemaRef.SubstType(Pattern, TemplateArgs, |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1657 | D->getLocation(), |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1658 | D->getDeclName()); |
| 1659 | if (!NewDI) |
| 1660 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1661 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1662 | ExpandedParameterPackTypesAsWritten.push_back(NewDI); |
| 1663 | QualType NewT = SemaRef.CheckNonTypeTemplateParameterType( |
| 1664 | NewDI->getType(), |
| 1665 | D->getLocation()); |
| 1666 | if (NewT.isNull()) |
| 1667 | return 0; |
| 1668 | ExpandedParameterPackTypes.push_back(NewT); |
| 1669 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1670 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1671 | // Note that we have an expanded parameter pack. The "type" of this |
| 1672 | // expanded parameter pack is the original expansion type, but callers |
| 1673 | // will end up using the expanded parameter pack types for type-checking. |
| 1674 | IsExpandedParameterPack = true; |
| 1675 | DI = D->getTypeSourceInfo(); |
| 1676 | T = DI->getType(); |
| 1677 | } else { |
| 1678 | // We cannot fully expand the pack expansion now, so substitute into the |
| 1679 | // pattern and create a new pack expansion type. |
| 1680 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, -1); |
| 1681 | TypeSourceInfo *NewPattern = SemaRef.SubstType(Pattern, TemplateArgs, |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1682 | D->getLocation(), |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1683 | D->getDeclName()); |
| 1684 | if (!NewPattern) |
| 1685 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1686 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1687 | DI = SemaRef.CheckPackExpansion(NewPattern, Expansion.getEllipsisLoc(), |
| 1688 | NumExpansions); |
| 1689 | if (!DI) |
| 1690 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1691 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1692 | T = DI->getType(); |
| 1693 | } |
| 1694 | } else { |
| 1695 | // Simple case: substitution into a parameter that is not a parameter pack. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1696 | DI = SemaRef.SubstType(D->getTypeSourceInfo(), TemplateArgs, |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1697 | D->getLocation(), D->getDeclName()); |
| 1698 | if (!DI) |
| 1699 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1700 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1701 | // Check that this type is acceptable for a non-type template parameter. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1702 | T = SemaRef.CheckNonTypeTemplateParameterType(DI->getType(), |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1703 | D->getLocation()); |
| 1704 | if (T.isNull()) { |
| 1705 | T = SemaRef.Context.IntTy; |
| 1706 | Invalid = true; |
| 1707 | } |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1708 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1709 | |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1710 | NonTypeTemplateParmDecl *Param; |
| 1711 | if (IsExpandedParameterPack) |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1712 | Param = NonTypeTemplateParmDecl::Create(SemaRef.Context, Owner, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1713 | D->getInnerLocStart(), |
| 1714 | D->getLocation(), |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1715 | D->getDepth() - TemplateArgs.getNumLevels(), |
| 1716 | D->getPosition(), |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1717 | D->getIdentifier(), T, |
| 1718 | DI, |
| 1719 | ExpandedParameterPackTypes.data(), |
| 1720 | ExpandedParameterPackTypes.size(), |
| 1721 | ExpandedParameterPackTypesAsWritten.data()); |
| 1722 | else |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1723 | Param = NonTypeTemplateParmDecl::Create(SemaRef.Context, Owner, |
Abramo Bagnara | ff676cb | 2011-03-08 08:55:46 +0000 | [diff] [blame] | 1724 | D->getInnerLocStart(), |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1725 | D->getLocation(), |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1726 | D->getDepth() - TemplateArgs.getNumLevels(), |
| 1727 | D->getPosition(), |
| 1728 | D->getIdentifier(), T, |
Douglas Gregor | 6952f1e | 2011-01-19 20:10:05 +0000 | [diff] [blame] | 1729 | D->isParameterPack(), DI); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1730 | |
Douglas Gregor | 9a299e0 | 2011-03-04 17:52:15 +0000 | [diff] [blame] | 1731 | Param->setAccess(AS_public); |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1732 | if (Invalid) |
| 1733 | Param->setInvalidDecl(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1734 | |
Abramo Bagnara | d92f7a2 | 2010-06-09 09:26:05 +0000 | [diff] [blame] | 1735 | Param->setDefaultArgument(D->getDefaultArgument(), false); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1736 | |
| 1737 | // Introduce this template parameter's instantiation into the instantiation |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 1738 | // scope. |
| 1739 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Param); |
Douglas Gregor | 33642df | 2009-10-23 23:25:44 +0000 | [diff] [blame] | 1740 | return Param; |
| 1741 | } |
| 1742 | |
Anders Carlsson | 0dde18e | 2009-08-28 15:18:15 +0000 | [diff] [blame] | 1743 | Decl * |
Douglas Gregor | 9106ef7 | 2009-11-11 16:58:32 +0000 | [diff] [blame] | 1744 | TemplateDeclInstantiator::VisitTemplateTemplateParmDecl( |
| 1745 | TemplateTemplateParmDecl *D) { |
| 1746 | // Instantiate the template parameter list of the template template parameter. |
| 1747 | TemplateParameterList *TempParams = D->getTemplateParameters(); |
| 1748 | TemplateParameterList *InstParams; |
| 1749 | { |
| 1750 | // Perform the actual substitution of template parameters within a new, |
| 1751 | // local instantiation scope. |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 1752 | LocalInstantiationScope Scope(SemaRef); |
Douglas Gregor | 9106ef7 | 2009-11-11 16:58:32 +0000 | [diff] [blame] | 1753 | InstParams = SubstTemplateParams(TempParams); |
| 1754 | if (!InstParams) |
| 1755 | return NULL; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1756 | } |
| 1757 | |
Douglas Gregor | 9106ef7 | 2009-11-11 16:58:32 +0000 | [diff] [blame] | 1758 | // Build the template template parameter. |
| 1759 | TemplateTemplateParmDecl *Param |
| 1760 | = TemplateTemplateParmDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1761 | D->getDepth() - TemplateArgs.getNumLevels(), |
| 1762 | D->getPosition(), D->isParameterPack(), |
Douglas Gregor | 61c4d28 | 2011-01-05 15:48:55 +0000 | [diff] [blame] | 1763 | D->getIdentifier(), InstParams); |
Abramo Bagnara | d92f7a2 | 2010-06-09 09:26:05 +0000 | [diff] [blame] | 1764 | Param->setDefaultArgument(D->getDefaultArgument(), false); |
Douglas Gregor | 9a299e0 | 2011-03-04 17:52:15 +0000 | [diff] [blame] | 1765 | Param->setAccess(AS_public); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1766 | |
| 1767 | // Introduce this template parameter's instantiation into the instantiation |
Douglas Gregor | 9106ef7 | 2009-11-11 16:58:32 +0000 | [diff] [blame] | 1768 | // scope. |
| 1769 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, Param); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1770 | |
Douglas Gregor | 9106ef7 | 2009-11-11 16:58:32 +0000 | [diff] [blame] | 1771 | return Param; |
| 1772 | } |
| 1773 | |
Douglas Gregor | 48c32a7 | 2009-11-17 06:07:40 +0000 | [diff] [blame] | 1774 | Decl *TemplateDeclInstantiator::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { |
Douglas Gregor | db99241 | 2011-02-25 16:33:46 +0000 | [diff] [blame] | 1775 | // Using directives are never dependent (and never contain any types or |
| 1776 | // expressions), so they require no explicit instantiation work. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1777 | |
Douglas Gregor | 48c32a7 | 2009-11-17 06:07:40 +0000 | [diff] [blame] | 1778 | UsingDirectiveDecl *Inst |
| 1779 | = UsingDirectiveDecl::Create(SemaRef.Context, Owner, D->getLocation(), |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1780 | D->getNamespaceKeyLocation(), |
Douglas Gregor | db99241 | 2011-02-25 16:33:46 +0000 | [diff] [blame] | 1781 | D->getQualifierLoc(), |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1782 | D->getIdentLocation(), |
| 1783 | D->getNominatedNamespace(), |
Douglas Gregor | 48c32a7 | 2009-11-17 06:07:40 +0000 | [diff] [blame] | 1784 | D->getCommonAncestor()); |
| 1785 | Owner->addDecl(Inst); |
| 1786 | return Inst; |
| 1787 | } |
| 1788 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1789 | Decl *TemplateDeclInstantiator::VisitUsingDecl(UsingDecl *D) { |
Douglas Gregor | 1b39820 | 2010-09-29 17:58:28 +0000 | [diff] [blame] | 1790 | |
| 1791 | // The nested name specifier may be dependent, for example |
| 1792 | // template <typename T> struct t { |
| 1793 | // struct s1 { T f1(); }; |
| 1794 | // struct s2 : s1 { using s1::f1; }; |
| 1795 | // }; |
| 1796 | // template struct t<int>; |
| 1797 | // Here, in using s1::f1, s1 refers to t<T>::s1; |
| 1798 | // we need to substitute for t<int>::s1. |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 1799 | NestedNameSpecifierLoc QualifierLoc |
| 1800 | = SemaRef.SubstNestedNameSpecifierLoc(D->getQualifierLoc(), |
| 1801 | TemplateArgs); |
| 1802 | if (!QualifierLoc) |
Douglas Gregor | dc35571 | 2011-02-25 00:36:19 +0000 | [diff] [blame] | 1803 | return 0; |
Douglas Gregor | 1b39820 | 2010-09-29 17:58:28 +0000 | [diff] [blame] | 1804 | |
| 1805 | // The name info is non-dependent, so no transformation |
| 1806 | // is required. |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 1807 | DeclarationNameInfo NameInfo = D->getNameInfo(); |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1808 | |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1809 | // We only need to do redeclaration lookups if we're in a class |
| 1810 | // scope (in fact, it's not really even possible in non-class |
| 1811 | // scopes). |
| 1812 | bool CheckRedeclaration = Owner->isRecord(); |
| 1813 | |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 1814 | LookupResult Prev(SemaRef, NameInfo, Sema::LookupUsingDeclName, |
| 1815 | Sema::ForRedeclaration); |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1816 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1817 | UsingDecl *NewUD = UsingDecl::Create(SemaRef.Context, Owner, |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1818 | D->getUsingLocation(), |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 1819 | QualifierLoc, |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 1820 | NameInfo, |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1821 | D->isTypeName()); |
| 1822 | |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 1823 | CXXScopeSpec SS; |
| 1824 | SS.Adopt(QualifierLoc); |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1825 | if (CheckRedeclaration) { |
| 1826 | Prev.setHideTags(false); |
| 1827 | SemaRef.LookupQualifiedName(Prev, Owner); |
| 1828 | |
| 1829 | // Check for invalid redeclarations. |
| 1830 | if (SemaRef.CheckUsingDeclRedeclaration(D->getUsingLocation(), |
| 1831 | D->isTypeName(), SS, |
| 1832 | D->getLocation(), Prev)) |
| 1833 | NewUD->setInvalidDecl(); |
| 1834 | |
| 1835 | } |
| 1836 | |
| 1837 | if (!NewUD->isInvalidDecl() && |
| 1838 | SemaRef.CheckUsingDeclQualifier(D->getUsingLocation(), SS, |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1839 | D->getLocation())) |
| 1840 | NewUD->setInvalidDecl(); |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1841 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1842 | SemaRef.Context.setInstantiatedFromUsingDecl(NewUD, D); |
| 1843 | NewUD->setAccess(D->getAccess()); |
| 1844 | Owner->addDecl(NewUD); |
| 1845 | |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1846 | // Don't process the shadow decls for an invalid decl. |
| 1847 | if (NewUD->isInvalidDecl()) |
| 1848 | return NewUD; |
| 1849 | |
John McCall | 323c310 | 2009-12-22 22:26:37 +0000 | [diff] [blame] | 1850 | bool isFunctionScope = Owner->isFunctionOrMethod(); |
| 1851 | |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1852 | // Process the shadow decls. |
| 1853 | for (UsingDecl::shadow_iterator I = D->shadow_begin(), E = D->shadow_end(); |
| 1854 | I != E; ++I) { |
| 1855 | UsingShadowDecl *Shadow = *I; |
| 1856 | NamedDecl *InstTarget = |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 1857 | cast_or_null<NamedDecl>(SemaRef.FindInstantiatedDecl( |
| 1858 | Shadow->getLocation(), |
| 1859 | Shadow->getTargetDecl(), |
| 1860 | TemplateArgs)); |
| 1861 | if (!InstTarget) |
| 1862 | return 0; |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1863 | |
| 1864 | if (CheckRedeclaration && |
| 1865 | SemaRef.CheckUsingShadowDecl(NewUD, InstTarget, Prev)) |
| 1866 | continue; |
| 1867 | |
| 1868 | UsingShadowDecl *InstShadow |
| 1869 | = SemaRef.BuildUsingShadowDecl(/*Scope*/ 0, NewUD, InstTarget); |
| 1870 | SemaRef.Context.setInstantiatedFromUsingShadowDecl(InstShadow, Shadow); |
John McCall | 323c310 | 2009-12-22 22:26:37 +0000 | [diff] [blame] | 1871 | |
| 1872 | if (isFunctionScope) |
| 1873 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(Shadow, InstShadow); |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1874 | } |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1875 | |
| 1876 | return NewUD; |
| 1877 | } |
| 1878 | |
| 1879 | Decl *TemplateDeclInstantiator::VisitUsingShadowDecl(UsingShadowDecl *D) { |
John McCall | 9f54ad4 | 2009-12-10 09:41:52 +0000 | [diff] [blame] | 1880 | // Ignore these; we handle them in bulk when processing the UsingDecl. |
| 1881 | return 0; |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1882 | } |
| 1883 | |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 1884 | Decl * TemplateDeclInstantiator |
| 1885 | ::VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D) { |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 1886 | NestedNameSpecifierLoc QualifierLoc |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1887 | = SemaRef.SubstNestedNameSpecifierLoc(D->getQualifierLoc(), |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 1888 | TemplateArgs); |
| 1889 | if (!QualifierLoc) |
Anders Carlsson | 0dde18e | 2009-08-28 15:18:15 +0000 | [diff] [blame] | 1890 | return 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1891 | |
Anders Carlsson | 0dde18e | 2009-08-28 15:18:15 +0000 | [diff] [blame] | 1892 | CXXScopeSpec SS; |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 1893 | SS.Adopt(QualifierLoc); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1894 | |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 1895 | // Since NameInfo refers to a typename, it cannot be a C++ special name. |
| 1896 | // Hence, no tranformation is required for it. |
| 1897 | DeclarationNameInfo NameInfo(D->getDeclName(), D->getLocation()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1898 | NamedDecl *UD = |
John McCall | 9488ea1 | 2009-11-17 05:59:44 +0000 | [diff] [blame] | 1899 | SemaRef.BuildUsingDeclaration(/*Scope*/ 0, D->getAccess(), |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 1900 | D->getUsingLoc(), SS, NameInfo, 0, |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 1901 | /*instantiation*/ true, |
| 1902 | /*typename*/ true, D->getTypenameLoc()); |
Douglas Gregor | 4469e8a | 2010-05-19 17:02:24 +0000 | [diff] [blame] | 1903 | if (UD) |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1904 | SemaRef.Context.setInstantiatedFromUsingDecl(cast<UsingDecl>(UD), D); |
| 1905 | |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 1906 | return UD; |
| 1907 | } |
| 1908 | |
| 1909 | Decl * TemplateDeclInstantiator |
| 1910 | ::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 1911 | NestedNameSpecifierLoc QualifierLoc |
| 1912 | = SemaRef.SubstNestedNameSpecifierLoc(D->getQualifierLoc(), TemplateArgs); |
| 1913 | if (!QualifierLoc) |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 1914 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1915 | |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 1916 | CXXScopeSpec SS; |
Douglas Gregor | 5149f37 | 2011-02-25 15:54:31 +0000 | [diff] [blame] | 1917 | SS.Adopt(QualifierLoc); |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 1918 | |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 1919 | DeclarationNameInfo NameInfo |
| 1920 | = SemaRef.SubstDeclarationNameInfo(D->getNameInfo(), TemplateArgs); |
| 1921 | |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 1922 | NamedDecl *UD = |
| 1923 | SemaRef.BuildUsingDeclaration(/*Scope*/ 0, D->getAccess(), |
Abramo Bagnara | ef3dce8 | 2010-08-12 11:46:03 +0000 | [diff] [blame] | 1924 | D->getUsingLoc(), SS, NameInfo, 0, |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 1925 | /*instantiation*/ true, |
| 1926 | /*typename*/ false, SourceLocation()); |
Douglas Gregor | 4469e8a | 2010-05-19 17:02:24 +0000 | [diff] [blame] | 1927 | if (UD) |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 1928 | SemaRef.Context.setInstantiatedFromUsingDecl(cast<UsingDecl>(UD), D); |
| 1929 | |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 1930 | return UD; |
Anders Carlsson | 0dde18e | 2009-08-28 15:18:15 +0000 | [diff] [blame] | 1931 | } |
| 1932 | |
Francois Pichet | af0f4d0 | 2011-08-14 03:52:19 +0000 | [diff] [blame] | 1933 | |
| 1934 | Decl *TemplateDeclInstantiator::VisitClassScopeFunctionSpecializationDecl( |
| 1935 | ClassScopeFunctionSpecializationDecl *Decl) { |
| 1936 | CXXMethodDecl *OldFD = Decl->getSpecialization(); |
| 1937 | CXXMethodDecl *NewFD = cast<CXXMethodDecl>(VisitCXXMethodDecl(OldFD, 0, true)); |
| 1938 | |
| 1939 | LookupResult Previous(SemaRef, NewFD->getNameInfo(), Sema::LookupOrdinaryName, |
| 1940 | Sema::ForRedeclaration); |
| 1941 | |
| 1942 | SemaRef.LookupQualifiedName(Previous, SemaRef.CurContext); |
| 1943 | if (SemaRef.CheckFunctionTemplateSpecialization(NewFD, 0, Previous)) { |
| 1944 | NewFD->setInvalidDecl(); |
| 1945 | return NewFD; |
| 1946 | } |
| 1947 | |
| 1948 | // Associate the specialization with the pattern. |
| 1949 | FunctionDecl *Specialization = cast<FunctionDecl>(Previous.getFoundDecl()); |
| 1950 | assert(Specialization && "Class scope Specialization is null"); |
| 1951 | SemaRef.Context.setClassScopeSpecializationPattern(Specialization, OldFD); |
| 1952 | |
| 1953 | return NewFD; |
| 1954 | } |
| 1955 | |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 1956 | Decl *Sema::SubstDecl(Decl *D, DeclContext *Owner, |
Douglas Gregor | d6350ae | 2009-08-28 20:31:08 +0000 | [diff] [blame] | 1957 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
Douglas Gregor | 7e06390 | 2009-05-11 23:53:27 +0000 | [diff] [blame] | 1958 | TemplateDeclInstantiator Instantiator(*this, Owner, TemplateArgs); |
Douglas Gregor | 2fa9800 | 2010-02-16 19:28:15 +0000 | [diff] [blame] | 1959 | if (D->isInvalidDecl()) |
| 1960 | return 0; |
| 1961 | |
Douglas Gregor | 8dbc269 | 2009-03-17 21:15:40 +0000 | [diff] [blame] | 1962 | return Instantiator.Visit(D); |
| 1963 | } |
| 1964 | |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1965 | /// \brief Instantiates a nested template parameter list in the current |
| 1966 | /// instantiation context. |
| 1967 | /// |
| 1968 | /// \param L The parameter list to instantiate |
| 1969 | /// |
| 1970 | /// \returns NULL if there was an error |
| 1971 | TemplateParameterList * |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 1972 | TemplateDeclInstantiator::SubstTemplateParams(TemplateParameterList *L) { |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1973 | // Get errors for all the parameters before bailing out. |
| 1974 | bool Invalid = false; |
| 1975 | |
| 1976 | unsigned N = L->size(); |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 1977 | typedef SmallVector<NamedDecl *, 8> ParamVector; |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1978 | ParamVector Params; |
| 1979 | Params.reserve(N); |
| 1980 | for (TemplateParameterList::iterator PI = L->begin(), PE = L->end(); |
| 1981 | PI != PE; ++PI) { |
Douglas Gregor | bf4ea56 | 2009-09-15 16:23:51 +0000 | [diff] [blame] | 1982 | NamedDecl *D = cast_or_null<NamedDecl>(Visit(*PI)); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1983 | Params.push_back(D); |
Douglas Gregor | 9148c3f | 2009-11-11 19:13:48 +0000 | [diff] [blame] | 1984 | Invalid = Invalid || !D || D->isInvalidDecl(); |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1985 | } |
| 1986 | |
| 1987 | // Clean up if we had an error. |
Douglas Gregor | ff331c1 | 2010-07-25 18:17:45 +0000 | [diff] [blame] | 1988 | if (Invalid) |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1989 | return NULL; |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1990 | |
| 1991 | TemplateParameterList *InstL |
| 1992 | = TemplateParameterList::Create(SemaRef.Context, L->getTemplateLoc(), |
| 1993 | L->getLAngleLoc(), &Params.front(), N, |
| 1994 | L->getRAngleLoc()); |
| 1995 | return InstL; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1996 | } |
John McCall | e29ba20 | 2009-08-20 01:44:21 +0000 | [diff] [blame] | 1997 | |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 1998 | /// \brief Instantiate the declaration of a class template partial |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 1999 | /// specialization. |
| 2000 | /// |
| 2001 | /// \param ClassTemplate the (instantiated) class template that is partially |
| 2002 | // specialized by the instantiation of \p PartialSpec. |
| 2003 | /// |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2004 | /// \param PartialSpec the (uninstantiated) class template partial |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2005 | /// specialization that we are instantiating. |
| 2006 | /// |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 2007 | /// \returns The instantiated partial specialization, if successful; otherwise, |
| 2008 | /// NULL to indicate an error. |
| 2009 | ClassTemplatePartialSpecializationDecl * |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2010 | TemplateDeclInstantiator::InstantiateClassTemplatePartialSpecialization( |
| 2011 | ClassTemplateDecl *ClassTemplate, |
| 2012 | ClassTemplatePartialSpecializationDecl *PartialSpec) { |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 2013 | // Create a local instantiation scope for this class template partial |
| 2014 | // specialization, which will contain the instantiations of the template |
| 2015 | // parameters. |
John McCall | 2a7fb27 | 2010-08-25 05:32:35 +0000 | [diff] [blame] | 2016 | LocalInstantiationScope Scope(SemaRef); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2017 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2018 | // Substitute into the template parameters of the class template partial |
| 2019 | // specialization. |
| 2020 | TemplateParameterList *TempParams = PartialSpec->getTemplateParameters(); |
| 2021 | TemplateParameterList *InstParams = SubstTemplateParams(TempParams); |
| 2022 | if (!InstParams) |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 2023 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2024 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2025 | // Substitute into the template arguments of the class template partial |
| 2026 | // specialization. |
John McCall | d5532b6 | 2009-11-23 01:53:49 +0000 | [diff] [blame] | 2027 | TemplateArgumentListInfo InstTemplateArgs; // no angle locations |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2028 | if (SemaRef.Subst(PartialSpec->getTemplateArgsAsWritten(), |
| 2029 | PartialSpec->getNumTemplateArgsAsWritten(), |
Douglas Gregor | e02e262 | 2010-12-22 21:19:48 +0000 | [diff] [blame] | 2030 | InstTemplateArgs, TemplateArgs)) |
| 2031 | return 0; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2032 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2033 | // Check that the template argument list is well-formed for this |
| 2034 | // class template. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2035 | SmallVector<TemplateArgument, 4> Converted; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2036 | if (SemaRef.CheckTemplateArgumentList(ClassTemplate, |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2037 | PartialSpec->getLocation(), |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2038 | InstTemplateArgs, |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2039 | false, |
| 2040 | Converted)) |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 2041 | return 0; |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2042 | |
| 2043 | // Figure out where to insert this class template partial specialization |
| 2044 | // in the member template's set of class template partial specializations. |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2045 | void *InsertPos = 0; |
| 2046 | ClassTemplateSpecializationDecl *PrevDecl |
Douglas Gregor | 910f800 | 2010-11-07 23:05:16 +0000 | [diff] [blame] | 2047 | = ClassTemplate->findPartialSpecialization(Converted.data(), |
| 2048 | Converted.size(), InsertPos); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2049 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2050 | // Build the canonical type that describes the converted template |
| 2051 | // arguments of the class template partial specialization. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2052 | QualType CanonType |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2053 | = SemaRef.Context.getTemplateSpecializationType(TemplateName(ClassTemplate), |
Douglas Gregor | 910f800 | 2010-11-07 23:05:16 +0000 | [diff] [blame] | 2054 | Converted.data(), |
| 2055 | Converted.size()); |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2056 | |
| 2057 | // Build the fully-sugared type for this class template |
| 2058 | // specialization as the user wrote in the specialization |
| 2059 | // itself. This means that we'll pretty-print the type retrieved |
| 2060 | // from the specialization's declaration the way that the user |
| 2061 | // actually wrote the specialization, rather than formatting the |
| 2062 | // name based on the "canonical" representation used to store the |
| 2063 | // template arguments in the specialization. |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 2064 | TypeSourceInfo *WrittenTy |
| 2065 | = SemaRef.Context.getTemplateSpecializationTypeInfo( |
| 2066 | TemplateName(ClassTemplate), |
| 2067 | PartialSpec->getLocation(), |
John McCall | d5532b6 | 2009-11-23 01:53:49 +0000 | [diff] [blame] | 2068 | InstTemplateArgs, |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2069 | CanonType); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2070 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2071 | if (PrevDecl) { |
| 2072 | // We've already seen a partial specialization with the same template |
| 2073 | // parameters and template arguments. This can happen, for example, when |
| 2074 | // substituting the outer template arguments ends up causing two |
| 2075 | // class template partial specializations of a member class template |
| 2076 | // to have identical forms, e.g., |
| 2077 | // |
| 2078 | // template<typename T, typename U> |
| 2079 | // struct Outer { |
| 2080 | // template<typename X, typename Y> struct Inner; |
| 2081 | // template<typename Y> struct Inner<T, Y>; |
| 2082 | // template<typename Y> struct Inner<U, Y>; |
| 2083 | // }; |
| 2084 | // |
| 2085 | // Outer<int, int> outer; // error: the partial specializations of Inner |
| 2086 | // // have the same signature. |
| 2087 | SemaRef.Diag(PartialSpec->getLocation(), diag::err_partial_spec_redeclared) |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 2088 | << WrittenTy->getType(); |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2089 | SemaRef.Diag(PrevDecl->getLocation(), diag::note_prev_partial_spec_here) |
| 2090 | << SemaRef.Context.getTypeDeclType(PrevDecl); |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 2091 | return 0; |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2092 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2093 | |
| 2094 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2095 | // Create the class template partial specialization declaration. |
| 2096 | ClassTemplatePartialSpecializationDecl *InstPartialSpec |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2097 | = ClassTemplatePartialSpecializationDecl::Create(SemaRef.Context, |
Douglas Gregor | 13c8577 | 2010-05-06 00:28:52 +0000 | [diff] [blame] | 2098 | PartialSpec->getTagKind(), |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2099 | Owner, |
Abramo Bagnara | ba877ad | 2011-03-09 14:09:51 +0000 | [diff] [blame] | 2100 | PartialSpec->getLocStart(), |
| 2101 | PartialSpec->getLocation(), |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2102 | InstParams, |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2103 | ClassTemplate, |
Douglas Gregor | 910f800 | 2010-11-07 23:05:16 +0000 | [diff] [blame] | 2104 | Converted.data(), |
| 2105 | Converted.size(), |
John McCall | d5532b6 | 2009-11-23 01:53:49 +0000 | [diff] [blame] | 2106 | InstTemplateArgs, |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 2107 | CanonType, |
Douglas Gregor | dc60c1e | 2010-04-30 05:56:50 +0000 | [diff] [blame] | 2108 | 0, |
Argyrios Kyrtzidis | cc0b1bc | 2010-07-20 13:59:28 +0000 | [diff] [blame] | 2109 | ClassTemplate->getNextPartialSpecSequenceNumber()); |
John McCall | b621766 | 2010-03-15 10:12:16 +0000 | [diff] [blame] | 2110 | // Substitute the nested name specifier, if any. |
| 2111 | if (SubstQualifier(PartialSpec, InstPartialSpec)) |
| 2112 | return 0; |
| 2113 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2114 | InstPartialSpec->setInstantiatedFromMember(PartialSpec); |
Douglas Gregor | 4469e8a | 2010-05-19 17:02:24 +0000 | [diff] [blame] | 2115 | InstPartialSpec->setTypeAsWritten(WrittenTy); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2116 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2117 | // Add this partial specialization to the set of class template partial |
| 2118 | // specializations. |
Argyrios Kyrtzidis | cc0b1bc | 2010-07-20 13:59:28 +0000 | [diff] [blame] | 2119 | ClassTemplate->AddPartialSpecialization(InstPartialSpec, InsertPos); |
Douglas Gregor | d65587f | 2010-11-10 19:44:59 +0000 | [diff] [blame] | 2120 | return InstPartialSpec; |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2121 | } |
| 2122 | |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 2123 | TypeSourceInfo* |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 2124 | TemplateDeclInstantiator::SubstFunctionType(FunctionDecl *D, |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2125 | SmallVectorImpl<ParmVarDecl *> &Params) { |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 2126 | TypeSourceInfo *OldTInfo = D->getTypeSourceInfo(); |
| 2127 | assert(OldTInfo && "substituting function without type source info"); |
| 2128 | assert(Params.empty() && "parameter vector is non-empty at start"); |
John McCall | 6cd3b9f | 2010-04-09 17:38:44 +0000 | [diff] [blame] | 2129 | TypeSourceInfo *NewTInfo |
| 2130 | = SemaRef.SubstFunctionDeclType(OldTInfo, TemplateArgs, |
| 2131 | D->getTypeSpecStartLoc(), |
| 2132 | D->getDeclName()); |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 2133 | if (!NewTInfo) |
| 2134 | return 0; |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2135 | |
Douglas Gregor | cb27b0f | 2010-04-12 07:48:19 +0000 | [diff] [blame] | 2136 | if (NewTInfo != OldTInfo) { |
| 2137 | // Get parameters from the new type info. |
Abramo Bagnara | 140a2bd | 2010-12-13 22:27:55 +0000 | [diff] [blame] | 2138 | TypeLoc OldTL = OldTInfo->getTypeLoc().IgnoreParens(); |
Douglas Gregor | 6920cdc | 2010-05-03 15:32:18 +0000 | [diff] [blame] | 2139 | if (FunctionProtoTypeLoc *OldProtoLoc |
| 2140 | = dyn_cast<FunctionProtoTypeLoc>(&OldTL)) { |
Abramo Bagnara | 140a2bd | 2010-12-13 22:27:55 +0000 | [diff] [blame] | 2141 | TypeLoc NewTL = NewTInfo->getTypeLoc().IgnoreParens(); |
Douglas Gregor | 6920cdc | 2010-05-03 15:32:18 +0000 | [diff] [blame] | 2142 | FunctionProtoTypeLoc *NewProtoLoc = cast<FunctionProtoTypeLoc>(&NewTL); |
| 2143 | assert(NewProtoLoc && "Missing prototype?"); |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 2144 | unsigned NewIdx = 0, NumNewParams = NewProtoLoc->getNumArgs(); |
| 2145 | for (unsigned OldIdx = 0, NumOldParams = OldProtoLoc->getNumArgs(); |
| 2146 | OldIdx != NumOldParams; ++OldIdx) { |
| 2147 | ParmVarDecl *OldParam = OldProtoLoc->getArg(OldIdx); |
| 2148 | if (!OldParam->isParameterPack() || |
| 2149 | (NewIdx < NumNewParams && |
| 2150 | NewProtoLoc->getArg(NewIdx)->isParameterPack())) { |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2151 | // Simple case: normal parameter, or a parameter pack that's |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 2152 | // instantiated to a (still-dependent) parameter pack. |
| 2153 | ParmVarDecl *NewParam = NewProtoLoc->getArg(NewIdx++); |
| 2154 | Params.push_back(NewParam); |
| 2155 | SemaRef.CurrentInstantiationScope->InstantiatedLocal(OldParam, |
| 2156 | NewParam); |
| 2157 | continue; |
| 2158 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2159 | |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 2160 | // Parameter pack: make the instantiation an argument pack. |
| 2161 | SemaRef.CurrentInstantiationScope->MakeInstantiatedLocalArgPack( |
| 2162 | OldParam); |
Douglas Gregor | 21371ea | 2011-01-11 03:14:20 +0000 | [diff] [blame] | 2163 | unsigned NumArgumentsInExpansion |
| 2164 | = SemaRef.getNumArgumentsInExpansion(OldParam->getType(), |
| 2165 | TemplateArgs); |
| 2166 | while (NumArgumentsInExpansion--) { |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 2167 | ParmVarDecl *NewParam = NewProtoLoc->getArg(NewIdx++); |
| 2168 | Params.push_back(NewParam); |
| 2169 | SemaRef.CurrentInstantiationScope->InstantiatedLocalPackArg(OldParam, |
| 2170 | NewParam); |
| 2171 | } |
Douglas Gregor | 6920cdc | 2010-05-03 15:32:18 +0000 | [diff] [blame] | 2172 | } |
Douglas Gregor | 895162d | 2010-04-30 18:55:50 +0000 | [diff] [blame] | 2173 | } |
Douglas Gregor | cb27b0f | 2010-04-12 07:48:19 +0000 | [diff] [blame] | 2174 | } else { |
| 2175 | // The function type itself was not dependent and therefore no |
| 2176 | // substitution occurred. However, we still need to instantiate |
| 2177 | // the function parameters themselves. |
Abramo Bagnara | 140a2bd | 2010-12-13 22:27:55 +0000 | [diff] [blame] | 2178 | TypeLoc OldTL = OldTInfo->getTypeLoc().IgnoreParens(); |
Douglas Gregor | 6920cdc | 2010-05-03 15:32:18 +0000 | [diff] [blame] | 2179 | if (FunctionProtoTypeLoc *OldProtoLoc |
| 2180 | = dyn_cast<FunctionProtoTypeLoc>(&OldTL)) { |
| 2181 | for (unsigned i = 0, i_end = OldProtoLoc->getNumArgs(); i != i_end; ++i) { |
| 2182 | ParmVarDecl *Parm = VisitParmVarDecl(OldProtoLoc->getArg(i)); |
| 2183 | if (!Parm) |
| 2184 | return 0; |
| 2185 | Params.push_back(Parm); |
| 2186 | } |
Douglas Gregor | cb27b0f | 2010-04-12 07:48:19 +0000 | [diff] [blame] | 2187 | } |
| 2188 | } |
John McCall | 21ef0fa | 2010-03-11 09:03:00 +0000 | [diff] [blame] | 2189 | return NewTInfo; |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2190 | } |
| 2191 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2192 | /// \brief Initializes the common fields of an instantiation function |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 2193 | /// declaration (New) from the corresponding fields of its template (Tmpl). |
| 2194 | /// |
| 2195 | /// \returns true if there was an error |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2196 | bool |
| 2197 | TemplateDeclInstantiator::InitFunctionInstantiation(FunctionDecl *New, |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 2198 | FunctionDecl *Tmpl) { |
Sean Hunt | 10620eb | 2011-05-06 20:44:56 +0000 | [diff] [blame] | 2199 | if (Tmpl->isDeletedAsWritten()) |
| 2200 | New->setDeletedAsWritten(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2201 | |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2202 | // If we are performing substituting explicitly-specified template arguments |
| 2203 | // or deduced template arguments into a function template and we reach this |
| 2204 | // 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] | 2205 | // to keeping the new function template specialization. We therefore |
| 2206 | // convert the active template instantiation for the function template |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2207 | // into a template instantiation for this specific function template |
| 2208 | // specialization, which is not a SFINAE context, so that we diagnose any |
| 2209 | // further errors in the declaration itself. |
| 2210 | typedef Sema::ActiveTemplateInstantiation ActiveInstType; |
| 2211 | ActiveInstType &ActiveInst = SemaRef.ActiveTemplateInstantiations.back(); |
| 2212 | if (ActiveInst.Kind == ActiveInstType::ExplicitTemplateArgumentSubstitution || |
| 2213 | ActiveInst.Kind == ActiveInstType::DeducedTemplateArgumentSubstitution) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2214 | if (FunctionTemplateDecl *FunTmpl |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2215 | = dyn_cast<FunctionTemplateDecl>((Decl *)ActiveInst.Entity)) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2216 | assert(FunTmpl->getTemplatedDecl() == Tmpl && |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2217 | "Deduction from the wrong function template?"); |
Daniel Dunbar | bcbb8bd | 2009-07-16 22:10:11 +0000 | [diff] [blame] | 2218 | (void) FunTmpl; |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2219 | ActiveInst.Kind = ActiveInstType::TemplateInstantiation; |
| 2220 | ActiveInst.Entity = reinterpret_cast<uintptr_t>(New); |
Douglas Gregor | f35f828 | 2009-11-11 21:54:23 +0000 | [diff] [blame] | 2221 | --SemaRef.NonInstantiationEntries; |
Douglas Gregor | cca9e96 | 2009-07-01 22:01:06 +0000 | [diff] [blame] | 2222 | } |
| 2223 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2224 | |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2225 | const FunctionProtoType *Proto = Tmpl->getType()->getAs<FunctionProtoType>(); |
| 2226 | assert(Proto && "Function template without prototype?"); |
| 2227 | |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2228 | if (Proto->hasExceptionSpec() || Proto->getNoReturnAttr()) { |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2229 | // The function has an exception specification or a "noreturn" |
| 2230 | // attribute. Substitute into each of the exception types. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2231 | SmallVector<QualType, 4> Exceptions; |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2232 | for (unsigned I = 0, N = Proto->getNumExceptions(); I != N; ++I) { |
| 2233 | // FIXME: Poor location information! |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2234 | if (const PackExpansionType *PackExpansion |
| 2235 | = Proto->getExceptionType(I)->getAs<PackExpansionType>()) { |
| 2236 | // We have a pack expansion. Instantiate it. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2237 | SmallVector<UnexpandedParameterPack, 2> Unexpanded; |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2238 | SemaRef.collectUnexpandedParameterPacks(PackExpansion->getPattern(), |
| 2239 | Unexpanded); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2240 | assert(!Unexpanded.empty() && |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2241 | "Pack expansion without parameter packs?"); |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2242 | |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2243 | bool Expand = false; |
Douglas Gregor | d373119 | 2011-01-10 07:32:04 +0000 | [diff] [blame] | 2244 | bool RetainExpansion = false; |
Douglas Gregor | cded4f6 | 2011-01-14 17:04:44 +0000 | [diff] [blame] | 2245 | llvm::Optional<unsigned> NumExpansions |
| 2246 | = PackExpansion->getNumExpansions(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2247 | if (SemaRef.CheckParameterPacksForExpansion(New->getLocation(), |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2248 | SourceRange(), |
David Blaikie | a71f9d0 | 2011-09-22 02:34:54 +0000 | [diff] [blame] | 2249 | Unexpanded, |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2250 | TemplateArgs, |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2251 | Expand, |
Douglas Gregor | d373119 | 2011-01-10 07:32:04 +0000 | [diff] [blame] | 2252 | RetainExpansion, |
| 2253 | NumExpansions)) |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2254 | break; |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2255 | |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2256 | if (!Expand) { |
| 2257 | // We can't expand this pack expansion into separate arguments yet; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2258 | // just substitute into the pattern and create a new pack expansion |
Douglas Gregor | cded4f6 | 2011-01-14 17:04:44 +0000 | [diff] [blame] | 2259 | // type. |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2260 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, -1); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2261 | QualType T = SemaRef.SubstType(PackExpansion->getPattern(), |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2262 | TemplateArgs, |
| 2263 | New->getLocation(), New->getDeclName()); |
| 2264 | if (T.isNull()) |
| 2265 | break; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2266 | |
Douglas Gregor | cded4f6 | 2011-01-14 17:04:44 +0000 | [diff] [blame] | 2267 | T = SemaRef.Context.getPackExpansionType(T, NumExpansions); |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2268 | Exceptions.push_back(T); |
| 2269 | continue; |
| 2270 | } |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2271 | |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2272 | // Substitute into the pack expansion pattern for each template |
| 2273 | bool Invalid = false; |
Douglas Gregor | cded4f6 | 2011-01-14 17:04:44 +0000 | [diff] [blame] | 2274 | for (unsigned ArgIdx = 0; ArgIdx != *NumExpansions; ++ArgIdx) { |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2275 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(SemaRef, ArgIdx); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2276 | |
| 2277 | QualType T = SemaRef.SubstType(PackExpansion->getPattern(), |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2278 | TemplateArgs, |
| 2279 | New->getLocation(), New->getDeclName()); |
| 2280 | if (T.isNull()) { |
| 2281 | Invalid = true; |
| 2282 | break; |
| 2283 | } |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2284 | |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2285 | Exceptions.push_back(T); |
| 2286 | } |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2287 | |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2288 | if (Invalid) |
| 2289 | break; |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2290 | |
Douglas Gregor | b99268b | 2010-12-21 00:52:54 +0000 | [diff] [blame] | 2291 | continue; |
| 2292 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2293 | |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2294 | QualType T |
| 2295 | = SemaRef.SubstType(Proto->getExceptionType(I), TemplateArgs, |
| 2296 | New->getLocation(), New->getDeclName()); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2297 | if (T.isNull() || |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2298 | SemaRef.CheckSpecifiedExceptionType(T, New->getLocation())) |
| 2299 | continue; |
| 2300 | |
| 2301 | Exceptions.push_back(T); |
| 2302 | } |
Sebastian Redl | 56fb926 | 2011-03-14 18:51:50 +0000 | [diff] [blame] | 2303 | Expr *NoexceptExpr = 0; |
| 2304 | if (Expr *OldNoexceptExpr = Proto->getNoexceptExpr()) { |
Douglas Gregor | 3617e19 | 2011-06-01 15:55:51 +0000 | [diff] [blame] | 2305 | EnterExpressionEvaluationContext Unevaluated(SemaRef, Sema::Unevaluated); |
Sebastian Redl | 56fb926 | 2011-03-14 18:51:50 +0000 | [diff] [blame] | 2306 | ExprResult E = SemaRef.SubstExpr(OldNoexceptExpr, TemplateArgs); |
| 2307 | if (E.isUsable()) |
Douglas Gregor | 5c340e8 | 2011-10-09 18:31:23 +0000 | [diff] [blame] | 2308 | E = SemaRef.CheckBooleanCondition(E.get(), E.get()->getLocStart()); |
| 2309 | |
| 2310 | if (E.isUsable()) { |
| 2311 | SourceLocation ErrLoc; |
| 2312 | llvm::APSInt NoexceptVal; |
Sebastian Redl | 56fb926 | 2011-03-14 18:51:50 +0000 | [diff] [blame] | 2313 | NoexceptExpr = E.take(); |
Douglas Gregor | 5c340e8 | 2011-10-09 18:31:23 +0000 | [diff] [blame] | 2314 | if (!NoexceptExpr->isTypeDependent() && |
| 2315 | !NoexceptExpr->isValueDependent() && |
| 2316 | !NoexceptExpr->isIntegerConstantExpr(NoexceptVal, SemaRef.Context, |
| 2317 | &ErrLoc, /*evaluated=*/false)){ |
| 2318 | SemaRef.Diag(ErrLoc, diag::err_noexcept_needs_constant_expression) |
| 2319 | << NoexceptExpr->getSourceRange(); |
| 2320 | NoexceptExpr = 0; |
| 2321 | } |
| 2322 | } |
Sebastian Redl | 56fb926 | 2011-03-14 18:51:50 +0000 | [diff] [blame] | 2323 | } |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2324 | |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2325 | // Rebuild the function type |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2326 | |
John McCall | e23cf43 | 2010-12-14 08:05:40 +0000 | [diff] [blame] | 2327 | FunctionProtoType::ExtProtoInfo EPI = Proto->getExtProtoInfo(); |
Sebastian Redl | 60618fa | 2011-03-12 11:50:43 +0000 | [diff] [blame] | 2328 | EPI.ExceptionSpecType = Proto->getExceptionSpecType(); |
John McCall | e23cf43 | 2010-12-14 08:05:40 +0000 | [diff] [blame] | 2329 | EPI.NumExceptions = Exceptions.size(); |
| 2330 | EPI.Exceptions = Exceptions.data(); |
Sebastian Redl | 56fb926 | 2011-03-14 18:51:50 +0000 | [diff] [blame] | 2331 | EPI.NoexceptExpr = NoexceptExpr; |
John McCall | e23cf43 | 2010-12-14 08:05:40 +0000 | [diff] [blame] | 2332 | EPI.ExtInfo = Proto->getExtInfo(); |
| 2333 | |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2334 | const FunctionProtoType *NewProto |
| 2335 | = New->getType()->getAs<FunctionProtoType>(); |
| 2336 | assert(NewProto && "Template instantiation without function prototype?"); |
| 2337 | New->setType(SemaRef.Context.getFunctionType(NewProto->getResultType(), |
| 2338 | NewProto->arg_type_begin(), |
| 2339 | NewProto->getNumArgs(), |
John McCall | e23cf43 | 2010-12-14 08:05:40 +0000 | [diff] [blame] | 2340 | EPI)); |
Douglas Gregor | 0ae7b3f | 2009-12-08 17:45:32 +0000 | [diff] [blame] | 2341 | } |
| 2342 | |
Richard Smith | 9f569cc | 2011-10-01 02:31:28 +0000 | [diff] [blame] | 2343 | // C++0x [dcl.constexpr]p6: If the instantiated template specialization of |
| 2344 | // a constexpr function template satisfies the requirements for a constexpr |
| 2345 | // function, then it is a constexpr function. |
| 2346 | if (Tmpl->isConstexpr() && |
| 2347 | SemaRef.CheckConstexprFunctionDecl(New, Sema::CCK_Instantiation)) |
| 2348 | New->setConstexpr(true); |
| 2349 | |
Rafael Espindola | 19f74ac | 2011-07-06 15:46:09 +0000 | [diff] [blame] | 2350 | const FunctionDecl* Definition = Tmpl; |
| 2351 | |
| 2352 | // Get the definition. Leaves the variable unchanged if undefined. |
| 2353 | Tmpl->isDefined(Definition); |
| 2354 | |
| 2355 | SemaRef.InstantiateAttrs(TemplateArgs, Definition, New); |
Douglas Gregor | 7cf84d6 | 2010-06-15 17:05:35 +0000 | [diff] [blame] | 2356 | |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 2357 | return false; |
| 2358 | } |
| 2359 | |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2360 | /// \brief Initializes common fields of an instantiated method |
| 2361 | /// declaration (New) from the corresponding fields of its template |
| 2362 | /// (Tmpl). |
| 2363 | /// |
| 2364 | /// \returns true if there was an error |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2365 | bool |
| 2366 | TemplateDeclInstantiator::InitMethodInstantiation(CXXMethodDecl *New, |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2367 | CXXMethodDecl *Tmpl) { |
Douglas Gregor | e53060f | 2009-06-25 22:08:12 +0000 | [diff] [blame] | 2368 | if (InitFunctionInstantiation(New, Tmpl)) |
| 2369 | return true; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2370 | |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2371 | New->setAccess(Tmpl->getAccess()); |
Fariborz Jahanian | e7184df | 2009-12-03 18:44:40 +0000 | [diff] [blame] | 2372 | if (Tmpl->isVirtualAsWritten()) |
Douglas Gregor | 85606eb | 2010-09-28 20:50:54 +0000 | [diff] [blame] | 2373 | New->setVirtualAsWritten(true); |
Douglas Gregor | 5545e16 | 2009-03-24 00:38:23 +0000 | [diff] [blame] | 2374 | |
| 2375 | // FIXME: attributes |
| 2376 | // FIXME: New needs a pointer to Tmpl |
| 2377 | return false; |
| 2378 | } |
Douglas Gregor | a58861f | 2009-05-13 20:28:22 +0000 | [diff] [blame] | 2379 | |
| 2380 | /// \brief Instantiate the definition of the given function from its |
| 2381 | /// template. |
| 2382 | /// |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2383 | /// \param PointOfInstantiation the point at which the instantiation was |
| 2384 | /// required. Note that this is not precisely a "point of instantiation" |
| 2385 | /// for the function, but it's close. |
| 2386 | /// |
Douglas Gregor | a58861f | 2009-05-13 20:28:22 +0000 | [diff] [blame] | 2387 | /// \param Function the already-instantiated declaration of a |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2388 | /// function template specialization or member function of a class template |
| 2389 | /// specialization. |
| 2390 | /// |
| 2391 | /// \param Recursive if true, recursively instantiates any functions that |
| 2392 | /// are required by this instantiation. |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2393 | /// |
| 2394 | /// \param DefinitionRequired if true, then we are performing an explicit |
| 2395 | /// instantiation where the body of the function is required. Complain if |
| 2396 | /// there is no such body. |
Douglas Gregor | f3e7ce4 | 2009-05-18 17:01:57 +0000 | [diff] [blame] | 2397 | void Sema::InstantiateFunctionDefinition(SourceLocation PointOfInstantiation, |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2398 | FunctionDecl *Function, |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2399 | bool Recursive, |
| 2400 | bool DefinitionRequired) { |
Sean Hunt | 10620eb | 2011-05-06 20:44:56 +0000 | [diff] [blame] | 2401 | if (Function->isInvalidDecl() || Function->isDefined()) |
Douglas Gregor | 54dabfc | 2009-05-14 23:26:13 +0000 | [diff] [blame] | 2402 | return; |
| 2403 | |
Francois Pichet | af0f4d0 | 2011-08-14 03:52:19 +0000 | [diff] [blame] | 2404 | // Never instantiate an explicit specialization except if it is a class scope |
| 2405 | // explicit specialization. |
| 2406 | if (Function->getTemplateSpecializationKind() == TSK_ExplicitSpecialization && |
| 2407 | !Function->getClassScopeSpecializationPattern()) |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 2408 | return; |
Douglas Gregor | 6cfacfe | 2010-05-17 17:34:56 +0000 | [diff] [blame] | 2409 | |
Douglas Gregor | 1eee0e7 | 2009-05-14 21:06:31 +0000 | [diff] [blame] | 2410 | // Find the function body that we'll be substituting. |
Douglas Gregor | 3b846b6 | 2009-10-27 20:53:28 +0000 | [diff] [blame] | 2411 | const FunctionDecl *PatternDecl = Function->getTemplateInstantiationPattern(); |
Sean Hunt | f996e05 | 2011-05-27 20:00:14 +0000 | [diff] [blame] | 2412 | assert(PatternDecl && "instantiating a non-template"); |
| 2413 | |
| 2414 | Stmt *Pattern = PatternDecl->getBody(PatternDecl); |
| 2415 | assert(PatternDecl && "template definition is not a template"); |
| 2416 | if (!Pattern) { |
| 2417 | // Try to find a defaulted definition |
| 2418 | PatternDecl->isDefined(PatternDecl); |
Sean Hunt | dfab854 | 2011-05-25 22:02:25 +0000 | [diff] [blame] | 2419 | } |
Sean Hunt | f996e05 | 2011-05-27 20:00:14 +0000 | [diff] [blame] | 2420 | assert(PatternDecl && "template definition is not a template"); |
Douglas Gregor | 1eee0e7 | 2009-05-14 21:06:31 +0000 | [diff] [blame] | 2421 | |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 2422 | // Postpone late parsed template instantiations. |
Sean Hunt | f996e05 | 2011-05-27 20:00:14 +0000 | [diff] [blame] | 2423 | if (PatternDecl->isLateTemplateParsed() && |
Nick Lewycky | 8a29bc0 | 2011-05-12 03:51:24 +0000 | [diff] [blame] | 2424 | !LateTemplateParser) { |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 2425 | PendingInstantiations.push_back( |
| 2426 | std::make_pair(Function, PointOfInstantiation)); |
| 2427 | return; |
| 2428 | } |
| 2429 | |
| 2430 | // Call the LateTemplateParser callback if there a need to late parse |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2431 | // a templated function definition. |
Sean Hunt | f996e05 | 2011-05-27 20:00:14 +0000 | [diff] [blame] | 2432 | if (!Pattern && PatternDecl->isLateTemplateParsed() && |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 2433 | LateTemplateParser) { |
Francois Pichet | 4a47e8d | 2011-04-23 11:52:20 +0000 | [diff] [blame] | 2434 | LateTemplateParser(OpaqueParser, PatternDecl); |
Francois Pichet | 8387e2a | 2011-04-22 22:18:13 +0000 | [diff] [blame] | 2435 | Pattern = PatternDecl->getBody(PatternDecl); |
| 2436 | } |
| 2437 | |
Sean Hunt | f996e05 | 2011-05-27 20:00:14 +0000 | [diff] [blame] | 2438 | if (!Pattern && !PatternDecl->isDefaulted()) { |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2439 | if (DefinitionRequired) { |
| 2440 | if (Function->getPrimaryTemplate()) |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2441 | Diag(PointOfInstantiation, |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2442 | diag::err_explicit_instantiation_undefined_func_template) |
| 2443 | << Function->getPrimaryTemplate(); |
| 2444 | else |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2445 | Diag(PointOfInstantiation, |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2446 | diag::err_explicit_instantiation_undefined_member) |
| 2447 | << 1 << Function->getDeclName() << Function->getDeclContext(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2448 | |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2449 | if (PatternDecl) |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2450 | Diag(PatternDecl->getLocation(), |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2451 | diag::note_explicit_instantiation_here); |
Douglas Gregor | cfe833b | 2010-05-17 17:57:54 +0000 | [diff] [blame] | 2452 | Function->setInvalidDecl(); |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 2453 | } else if (Function->getTemplateSpecializationKind() |
| 2454 | == TSK_ExplicitInstantiationDefinition) { |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2455 | PendingInstantiations.push_back( |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 2456 | std::make_pair(Function, PointOfInstantiation)); |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2457 | } |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 2458 | |
Douglas Gregor | 1eee0e7 | 2009-05-14 21:06:31 +0000 | [diff] [blame] | 2459 | return; |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2460 | } |
Douglas Gregor | 1eee0e7 | 2009-05-14 21:06:31 +0000 | [diff] [blame] | 2461 | |
Douglas Gregor | d0e3daf | 2009-09-04 22:48:11 +0000 | [diff] [blame] | 2462 | // C++0x [temp.explicit]p9: |
| 2463 | // Except for inline functions, other explicit instantiation declarations |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2464 | // have the effect of suppressing the implicit instantiation of the entity |
Douglas Gregor | d0e3daf | 2009-09-04 22:48:11 +0000 | [diff] [blame] | 2465 | // to which they refer. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2466 | if (Function->getTemplateSpecializationKind() |
Douglas Gregor | d0e3daf | 2009-09-04 22:48:11 +0000 | [diff] [blame] | 2467 | == TSK_ExplicitInstantiationDeclaration && |
Douglas Gregor | 7ced9c8 | 2009-10-27 21:11:48 +0000 | [diff] [blame] | 2468 | !PatternDecl->isInlined()) |
Douglas Gregor | d0e3daf | 2009-09-04 22:48:11 +0000 | [diff] [blame] | 2469 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2470 | |
Douglas Gregor | f3e7ce4 | 2009-05-18 17:01:57 +0000 | [diff] [blame] | 2471 | InstantiatingTemplate Inst(*this, PointOfInstantiation, Function); |
| 2472 | if (Inst) |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2473 | return; |
| 2474 | |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2475 | // If we're performing recursive template instantiation, create our own |
| 2476 | // queue of pending implicit instantiations that we will instantiate later, |
| 2477 | // while we're still within our own instantiation context. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2478 | SmallVector<VTableUse, 16> SavedVTableUses; |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2479 | std::deque<PendingImplicitInstantiation> SavedPendingInstantiations; |
Nick Lewycky | 2a5f99e | 2010-11-25 00:35:20 +0000 | [diff] [blame] | 2480 | if (Recursive) { |
| 2481 | VTableUses.swap(SavedVTableUses); |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2482 | PendingInstantiations.swap(SavedPendingInstantiations); |
Nick Lewycky | 2a5f99e | 2010-11-25 00:35:20 +0000 | [diff] [blame] | 2483 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2484 | |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2485 | EnterExpressionEvaluationContext EvalContext(*this, |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 2486 | Sema::PotentiallyEvaluated); |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 2487 | ActOnStartOfFunctionDef(0, Function); |
Douglas Gregor | e2c31ff | 2009-05-15 17:59:04 +0000 | [diff] [blame] | 2488 | |
Douglas Gregor | 54dabfc | 2009-05-14 23:26:13 +0000 | [diff] [blame] | 2489 | // Introduce a new scope where local variable instantiations will be |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 2490 | // recorded, unless we're actually a member function within a local |
| 2491 | // class, in which case we need to merge our results with the parent |
| 2492 | // scope (of the enclosing function). |
| 2493 | bool MergeWithParentScope = false; |
| 2494 | if (CXXRecordDecl *Rec = dyn_cast<CXXRecordDecl>(Function->getDeclContext())) |
| 2495 | MergeWithParentScope = Rec->isLocalClass(); |
| 2496 | |
| 2497 | LocalInstantiationScope Scope(*this, MergeWithParentScope); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2498 | |
Douglas Gregor | 54dabfc | 2009-05-14 23:26:13 +0000 | [diff] [blame] | 2499 | // Introduce the instantiated function parameters into the local |
Peter Collingbourne | 8a6c0f1 | 2010-07-18 16:45:46 +0000 | [diff] [blame] | 2500 | // instantiation scope, and set the parameter names to those used |
| 2501 | // in the template. |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 2502 | unsigned FParamIdx = 0; |
Peter Collingbourne | 8a6c0f1 | 2010-07-18 16:45:46 +0000 | [diff] [blame] | 2503 | for (unsigned I = 0, N = PatternDecl->getNumParams(); I != N; ++I) { |
| 2504 | const ParmVarDecl *PatternParam = PatternDecl->getParamDecl(I); |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 2505 | if (!PatternParam->isParameterPack()) { |
| 2506 | // Simple case: not a parameter pack. |
| 2507 | assert(FParamIdx < Function->getNumParams()); |
| 2508 | ParmVarDecl *FunctionParam = Function->getParamDecl(I); |
| 2509 | FunctionParam->setDeclName(PatternParam->getDeclName()); |
| 2510 | Scope.InstantiatedLocal(PatternParam, FunctionParam); |
| 2511 | ++FParamIdx; |
| 2512 | continue; |
| 2513 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2514 | |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 2515 | // Expand the parameter pack. |
| 2516 | Scope.MakeInstantiatedLocalArgPack(PatternParam); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2517 | for (unsigned NumFParams = Function->getNumParams(); |
| 2518 | FParamIdx < NumFParams; |
Douglas Gregor | 12c9c00 | 2011-01-07 16:43:16 +0000 | [diff] [blame] | 2519 | ++FParamIdx) { |
| 2520 | ParmVarDecl *FunctionParam = Function->getParamDecl(FParamIdx); |
| 2521 | FunctionParam->setDeclName(PatternParam->getDeclName()); |
| 2522 | Scope.InstantiatedLocalPackArg(PatternParam, FunctionParam); |
| 2523 | } |
Peter Collingbourne | 8a6c0f1 | 2010-07-18 16:45:46 +0000 | [diff] [blame] | 2524 | } |
Douglas Gregor | 54dabfc | 2009-05-14 23:26:13 +0000 | [diff] [blame] | 2525 | |
Douglas Gregor | b9f1b8d | 2009-05-15 00:01:03 +0000 | [diff] [blame] | 2526 | // Enter the scope of this instantiation. We don't use |
| 2527 | // PushDeclContext because we don't have a scope. |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 2528 | Sema::ContextRAII savedContext(*this, Function); |
Douglas Gregor | b9f1b8d | 2009-05-15 00:01:03 +0000 | [diff] [blame] | 2529 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2530 | MultiLevelTemplateArgumentList TemplateArgs = |
Douglas Gregor | e7089b0 | 2010-05-03 23:29:10 +0000 | [diff] [blame] | 2531 | getTemplateInstantiationArgs(Function, 0, false, PatternDecl); |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2532 | |
Sean Hunt | cd10dec | 2011-05-23 23:14:04 +0000 | [diff] [blame] | 2533 | if (PatternDecl->isDefaulted()) { |
| 2534 | ActOnFinishFunctionBody(Function, 0, /*IsInstantiation=*/true); |
| 2535 | |
| 2536 | SetDeclDefaulted(Function, PatternDecl->getLocation()); |
Sean Hunt | cd10dec | 2011-05-23 23:14:04 +0000 | [diff] [blame] | 2537 | } else { |
| 2538 | // If this is a constructor, instantiate the member initializers. |
| 2539 | if (const CXXConstructorDecl *Ctor = |
| 2540 | dyn_cast<CXXConstructorDecl>(PatternDecl)) { |
| 2541 | InstantiateMemInitializers(cast<CXXConstructorDecl>(Function), Ctor, |
| 2542 | TemplateArgs); |
| 2543 | } |
| 2544 | |
| 2545 | // Instantiate the function body. |
| 2546 | StmtResult Body = SubstStmt(Pattern, TemplateArgs); |
| 2547 | |
| 2548 | if (Body.isInvalid()) |
| 2549 | Function->setInvalidDecl(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2550 | |
Sean Hunt | cd10dec | 2011-05-23 23:14:04 +0000 | [diff] [blame] | 2551 | ActOnFinishFunctionBody(Function, Body.get(), |
| 2552 | /*IsInstantiation=*/true); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2553 | } |
| 2554 | |
John McCall | 0c01d18 | 2010-03-24 05:22:00 +0000 | [diff] [blame] | 2555 | PerformDependentDiagnostics(PatternDecl, TemplateArgs); |
| 2556 | |
John McCall | eee1d54 | 2011-02-14 07:13:47 +0000 | [diff] [blame] | 2557 | savedContext.pop(); |
Douglas Gregor | aba43bb | 2009-05-26 20:50:29 +0000 | [diff] [blame] | 2558 | |
| 2559 | DeclGroupRef DG(Function); |
| 2560 | Consumer.HandleTopLevelDecl(DG); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2561 | |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 2562 | // This class may have local implicit instantiations that need to be |
| 2563 | // instantiation within this scope. |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2564 | PerformPendingInstantiations(/*LocalOnly=*/true); |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 2565 | Scope.Exit(); |
| 2566 | |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2567 | if (Recursive) { |
Nick Lewycky | 2a5f99e | 2010-11-25 00:35:20 +0000 | [diff] [blame] | 2568 | // Define any pending vtables. |
| 2569 | DefineUsedVTables(); |
| 2570 | |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2571 | // Instantiate any pending implicit instantiations found during the |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2572 | // instantiation of this template. |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2573 | PerformPendingInstantiations(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2574 | |
Nick Lewycky | 2a5f99e | 2010-11-25 00:35:20 +0000 | [diff] [blame] | 2575 | // Restore the set of pending vtables. |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 2576 | assert(VTableUses.empty() && |
| 2577 | "VTableUses should be empty before it is discarded."); |
Nick Lewycky | 2a5f99e | 2010-11-25 00:35:20 +0000 | [diff] [blame] | 2578 | VTableUses.swap(SavedVTableUses); |
| 2579 | |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2580 | // Restore the set of pending implicit instantiations. |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 2581 | assert(PendingInstantiations.empty() && |
| 2582 | "PendingInstantiations should be empty before it is discarded."); |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2583 | PendingInstantiations.swap(SavedPendingInstantiations); |
Douglas Gregor | b33fe2f | 2009-06-30 17:20:14 +0000 | [diff] [blame] | 2584 | } |
Douglas Gregor | a58861f | 2009-05-13 20:28:22 +0000 | [diff] [blame] | 2585 | } |
| 2586 | |
| 2587 | /// \brief Instantiate the definition of the given variable from its |
| 2588 | /// template. |
| 2589 | /// |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2590 | /// \param PointOfInstantiation the point at which the instantiation was |
| 2591 | /// required. Note that this is not precisely a "point of instantiation" |
| 2592 | /// for the function, but it's close. |
| 2593 | /// |
| 2594 | /// \param Var the already-instantiated declaration of a static member |
| 2595 | /// variable of a class template specialization. |
| 2596 | /// |
| 2597 | /// \param Recursive if true, recursively instantiates any functions that |
| 2598 | /// are required by this instantiation. |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2599 | /// |
| 2600 | /// \param DefinitionRequired if true, then we are performing an explicit |
| 2601 | /// instantiation where an out-of-line definition of the member variable |
| 2602 | /// is required. Complain if there is no such definition. |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2603 | void Sema::InstantiateStaticDataMemberDefinition( |
| 2604 | SourceLocation PointOfInstantiation, |
| 2605 | VarDecl *Var, |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2606 | bool Recursive, |
| 2607 | bool DefinitionRequired) { |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2608 | if (Var->isInvalidDecl()) |
| 2609 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2610 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2611 | // Find the out-of-line definition of this static data member. |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2612 | VarDecl *Def = Var->getInstantiatedFromStaticDataMember(); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2613 | assert(Def && "This data member was not instantiated from a template?"); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2614 | assert(Def->isStaticDataMember() && "Not a static data member?"); |
Douglas Gregor | 0d03514 | 2009-10-27 18:42:08 +0000 | [diff] [blame] | 2615 | Def = Def->getOutOfLineDefinition(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2616 | |
Douglas Gregor | 0d03514 | 2009-10-27 18:42:08 +0000 | [diff] [blame] | 2617 | if (!Def) { |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2618 | // We did not find an out-of-line definition of this static data member, |
| 2619 | // 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] | 2620 | // instantiate this definition (or provide a specialization for it) in |
| 2621 | // another translation unit. |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2622 | if (DefinitionRequired) { |
Douglas Gregor | 0d03514 | 2009-10-27 18:42:08 +0000 | [diff] [blame] | 2623 | Def = Var->getInstantiatedFromStaticDataMember(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2624 | Diag(PointOfInstantiation, |
Douglas Gregor | e2d3a3d | 2009-10-15 14:05:49 +0000 | [diff] [blame] | 2625 | diag::err_explicit_instantiation_undefined_member) |
| 2626 | << 2 << Var->getDeclName() << Var->getDeclContext(); |
| 2627 | Diag(Def->getLocation(), diag::note_explicit_instantiation_here); |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 2628 | } else if (Var->getTemplateSpecializationKind() |
| 2629 | == TSK_ExplicitInstantiationDefinition) { |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2630 | PendingInstantiations.push_back( |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 2631 | std::make_pair(Var, PointOfInstantiation)); |
| 2632 | } |
| 2633 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2634 | return; |
| 2635 | } |
| 2636 | |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 2637 | // Never instantiate an explicit specialization. |
Douglas Gregor | 1028c9f | 2009-10-14 21:29:40 +0000 | [diff] [blame] | 2638 | if (Var->getTemplateSpecializationKind() == TSK_ExplicitSpecialization) |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 2639 | return; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2640 | |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 2641 | // C++0x [temp.explicit]p9: |
| 2642 | // Except for inline functions, other explicit instantiation declarations |
| 2643 | // have the effect of suppressing the implicit instantiation of the entity |
| 2644 | // to which they refer. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2645 | if (Var->getTemplateSpecializationKind() |
Douglas Gregor | 251b4ff | 2009-10-08 07:24:58 +0000 | [diff] [blame] | 2646 | == TSK_ExplicitInstantiationDeclaration) |
| 2647 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2648 | |
Douglas Gregor | f15748a | 2011-06-03 03:35:07 +0000 | [diff] [blame] | 2649 | // If we already have a definition, we're done. |
| 2650 | if (Var->getDefinition()) |
| 2651 | return; |
| 2652 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2653 | InstantiatingTemplate Inst(*this, PointOfInstantiation, Var); |
| 2654 | if (Inst) |
| 2655 | return; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2656 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2657 | // If we're performing recursive template instantiation, create our own |
| 2658 | // queue of pending implicit instantiations that we will instantiate later, |
| 2659 | // while we're still within our own instantiation context. |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2660 | SmallVector<VTableUse, 16> SavedVTableUses; |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2661 | std::deque<PendingImplicitInstantiation> SavedPendingInstantiations; |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 2662 | if (Recursive) { |
| 2663 | VTableUses.swap(SavedVTableUses); |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2664 | PendingInstantiations.swap(SavedPendingInstantiations); |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 2665 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2666 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2667 | // Enter the scope of this instantiation. We don't use |
| 2668 | // PushDeclContext because we don't have a scope. |
John McCall | f5ba7e0 | 2011-02-14 20:37:25 +0000 | [diff] [blame] | 2669 | ContextRAII previousContext(*this, Var->getDeclContext()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2670 | |
Douglas Gregor | 1028c9f | 2009-10-14 21:29:40 +0000 | [diff] [blame] | 2671 | VarDecl *OldVar = Var; |
John McCall | ce3ff2b | 2009-08-25 22:02:44 +0000 | [diff] [blame] | 2672 | Var = cast_or_null<VarDecl>(SubstDecl(Def, Var->getDeclContext(), |
Nico Weber | 6bb4dcb | 2010-11-28 22:53:37 +0000 | [diff] [blame] | 2673 | getTemplateInstantiationArgs(Var))); |
John McCall | f5ba7e0 | 2011-02-14 20:37:25 +0000 | [diff] [blame] | 2674 | |
| 2675 | previousContext.pop(); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2676 | |
| 2677 | if (Var) { |
Douglas Gregor | 583f33b | 2009-10-15 18:07:02 +0000 | [diff] [blame] | 2678 | MemberSpecializationInfo *MSInfo = OldVar->getMemberSpecializationInfo(); |
| 2679 | assert(MSInfo && "Missing member specialization information?"); |
| 2680 | Var->setTemplateSpecializationKind(MSInfo->getTemplateSpecializationKind(), |
| 2681 | MSInfo->getPointOfInstantiation()); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2682 | DeclGroupRef DG(Var); |
| 2683 | Consumer.HandleTopLevelDecl(DG); |
| 2684 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2685 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2686 | if (Recursive) { |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 2687 | // Define any newly required vtables. |
| 2688 | DefineUsedVTables(); |
| 2689 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2690 | // Instantiate any pending implicit instantiations found during the |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2691 | // instantiation of this template. |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2692 | PerformPendingInstantiations(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2693 | |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 2694 | // Restore the set of pending vtables. |
| 2695 | assert(VTableUses.empty() && |
| 2696 | "VTableUses should be empty before it is discarded, " |
| 2697 | "while instantiating static data member."); |
| 2698 | VTableUses.swap(SavedVTableUses); |
| 2699 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 2700 | // Restore the set of pending implicit instantiations. |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 2701 | assert(PendingInstantiations.empty() && |
| 2702 | "PendingInstantiations should be empty before it is discarded, " |
| 2703 | "while instantiating static data member."); |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 2704 | PendingInstantiations.swap(SavedPendingInstantiations); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2705 | } |
Douglas Gregor | a58861f | 2009-05-13 20:28:22 +0000 | [diff] [blame] | 2706 | } |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 2707 | |
Benjamin Kramer | 54dec5f | 2011-10-08 16:15:07 +0000 | [diff] [blame] | 2708 | static MultiInitializer CreateMultiInitializer(SmallVectorImpl<Expr*> &Args, |
| 2709 | const CXXCtorInitializer *Init) { |
Sebastian Redl | 6df6548 | 2011-09-24 17:48:25 +0000 | [diff] [blame] | 2710 | // FIXME: This is a hack that will do slightly the wrong thing for an |
| 2711 | // initializer of the form foo({...}). |
| 2712 | // The right thing to do would be to modify InstantiateInitializer to create |
| 2713 | // the MultiInitializer. |
| 2714 | if (Args.size() == 1 && isa<InitListExpr>(Args[0])) |
| 2715 | return MultiInitializer(Args[0]); |
Sebastian Redl | c046f30 | 2011-10-17 16:53:50 +0000 | [diff] [blame] | 2716 | return MultiInitializer(Init->getLParenLoc(), Args.data(), |
Sebastian Redl | 6df6548 | 2011-09-24 17:48:25 +0000 | [diff] [blame] | 2717 | Args.size(), Init->getRParenLoc()); |
| 2718 | } |
| 2719 | |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2720 | void |
| 2721 | Sema::InstantiateMemInitializers(CXXConstructorDecl *New, |
| 2722 | const CXXConstructorDecl *Tmpl, |
| 2723 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2724 | |
Richard Trieu | 90ab75b | 2011-09-09 03:18:59 +0000 | [diff] [blame] | 2725 | SmallVector<CXXCtorInitializer*, 4> NewInits; |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 2726 | bool AnyErrors = false; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2727 | |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2728 | // Instantiate all the initializers. |
| 2729 | for (CXXConstructorDecl::init_const_iterator Inits = Tmpl->init_begin(), |
Douglas Gregor | 72f6d67 | 2009-09-01 21:04:42 +0000 | [diff] [blame] | 2730 | InitsEnd = Tmpl->init_end(); |
| 2731 | Inits != InitsEnd; ++Inits) { |
Sean Hunt | cbb6748 | 2011-01-08 20:30:50 +0000 | [diff] [blame] | 2732 | CXXCtorInitializer *Init = *Inits; |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2733 | |
Chandler Carruth | 030ef47 | 2010-09-03 21:54:20 +0000 | [diff] [blame] | 2734 | // Only instantiate written initializers, let Sema re-construct implicit |
| 2735 | // ones. |
| 2736 | if (!Init->isWritten()) |
| 2737 | continue; |
| 2738 | |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 2739 | SourceLocation LParenLoc, RParenLoc; |
John McCall | ca0408f | 2010-08-23 06:44:23 +0000 | [diff] [blame] | 2740 | ASTOwningVector<Expr*> NewArgs(*this); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2741 | |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2742 | SourceLocation EllipsisLoc; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2743 | |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2744 | if (Init->isPackExpansion()) { |
| 2745 | // This is a pack expansion. We should expand it now. |
Douglas Gregor | 76852c2 | 2011-11-01 01:16:03 +0000 | [diff] [blame] | 2746 | TypeLoc BaseTL = Init->getTypeSourceInfo()->getTypeLoc(); |
Chris Lattner | 5f9e272 | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 2747 | SmallVector<UnexpandedParameterPack, 2> Unexpanded; |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2748 | collectUnexpandedParameterPacks(BaseTL, Unexpanded); |
| 2749 | bool ShouldExpand = false; |
Douglas Gregor | d373119 | 2011-01-10 07:32:04 +0000 | [diff] [blame] | 2750 | bool RetainExpansion = false; |
Douglas Gregor | cded4f6 | 2011-01-14 17:04:44 +0000 | [diff] [blame] | 2751 | llvm::Optional<unsigned> NumExpansions; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2752 | if (CheckParameterPacksForExpansion(Init->getEllipsisLoc(), |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2753 | BaseTL.getSourceRange(), |
David Blaikie | a71f9d0 | 2011-09-22 02:34:54 +0000 | [diff] [blame] | 2754 | Unexpanded, |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2755 | TemplateArgs, ShouldExpand, |
Douglas Gregor | d373119 | 2011-01-10 07:32:04 +0000 | [diff] [blame] | 2756 | RetainExpansion, |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2757 | NumExpansions)) { |
| 2758 | AnyErrors = true; |
| 2759 | New->setInvalidDecl(); |
| 2760 | continue; |
| 2761 | } |
| 2762 | assert(ShouldExpand && "Partial instantiation of base initializer?"); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2763 | |
| 2764 | // Loop over all of the arguments in the argument pack(s), |
Douglas Gregor | cded4f6 | 2011-01-14 17:04:44 +0000 | [diff] [blame] | 2765 | for (unsigned I = 0; I != *NumExpansions; ++I) { |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2766 | Sema::ArgumentPackSubstitutionIndexRAII SubstIndex(*this, I); |
| 2767 | |
| 2768 | // Instantiate the initializer. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2769 | if (InstantiateInitializer(Init->getInit(), TemplateArgs, |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2770 | LParenLoc, NewArgs, RParenLoc)) { |
| 2771 | AnyErrors = true; |
| 2772 | break; |
| 2773 | } |
| 2774 | |
| 2775 | // Instantiate the base type. |
Douglas Gregor | 76852c2 | 2011-11-01 01:16:03 +0000 | [diff] [blame] | 2776 | TypeSourceInfo *BaseTInfo = SubstType(Init->getTypeSourceInfo(), |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2777 | TemplateArgs, |
| 2778 | Init->getSourceLocation(), |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2779 | New->getDeclName()); |
| 2780 | if (!BaseTInfo) { |
| 2781 | AnyErrors = true; |
| 2782 | break; |
| 2783 | } |
| 2784 | |
| 2785 | // Build the initializer. |
Sebastian Redl | 6df6548 | 2011-09-24 17:48:25 +0000 | [diff] [blame] | 2786 | MultiInitializer MultiInit(CreateMultiInitializer(NewArgs, Init)); |
| 2787 | MemInitResult NewInit = BuildBaseInitializer(BaseTInfo->getType(), |
| 2788 | BaseTInfo, MultiInit, |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2789 | New->getParent(), |
| 2790 | SourceLocation()); |
| 2791 | if (NewInit.isInvalid()) { |
| 2792 | AnyErrors = true; |
| 2793 | break; |
| 2794 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2795 | |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2796 | NewInits.push_back(NewInit.get()); |
| 2797 | NewArgs.clear(); |
| 2798 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2799 | |
Douglas Gregor | 3fb9e4b | 2011-01-04 00:32:56 +0000 | [diff] [blame] | 2800 | continue; |
| 2801 | } |
| 2802 | |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 2803 | // Instantiate the initializer. |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2804 | if (InstantiateInitializer(Init->getInit(), TemplateArgs, |
Douglas Gregor | a1a0478 | 2010-09-09 16:33:13 +0000 | [diff] [blame] | 2805 | LParenLoc, NewArgs, RParenLoc)) { |
Douglas Gregor | 6b98b2e | 2010-03-02 07:38:39 +0000 | [diff] [blame] | 2806 | AnyErrors = true; |
| 2807 | continue; |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2808 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2809 | |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2810 | MemInitResult NewInit; |
Douglas Gregor | 76852c2 | 2011-11-01 01:16:03 +0000 | [diff] [blame] | 2811 | if (Init->isDelegatingInitializer() || Init->isBaseInitializer()) { |
| 2812 | TypeSourceInfo *TInfo = SubstType(Init->getTypeSourceInfo(), |
| 2813 | TemplateArgs, |
| 2814 | Init->getSourceLocation(), |
| 2815 | New->getDeclName()); |
| 2816 | if (!TInfo) { |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 2817 | AnyErrors = true; |
Douglas Gregor | 802ab45 | 2009-12-02 22:36:29 +0000 | [diff] [blame] | 2818 | New->setInvalidDecl(); |
| 2819 | continue; |
| 2820 | } |
Sebastian Redl | 6df6548 | 2011-09-24 17:48:25 +0000 | [diff] [blame] | 2821 | |
| 2822 | MultiInitializer MultiInit(CreateMultiInitializer(NewArgs, Init)); |
Douglas Gregor | 76852c2 | 2011-11-01 01:16:03 +0000 | [diff] [blame] | 2823 | |
| 2824 | if (Init->isBaseInitializer()) |
| 2825 | NewInit = BuildBaseInitializer(TInfo->getType(), TInfo, MultiInit, |
| 2826 | New->getParent(), EllipsisLoc); |
| 2827 | else |
| 2828 | NewInit = BuildDelegatingInitializer(TInfo, MultiInit, |
| 2829 | cast<CXXRecordDecl>(CurContext->getParent())); |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2830 | } else if (Init->isMemberInitializer()) { |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 2831 | FieldDecl *Member = cast_or_null<FieldDecl>(FindInstantiatedDecl( |
Francois Pichet | 00eb3f9 | 2010-12-04 09:14:42 +0000 | [diff] [blame] | 2832 | Init->getMemberLocation(), |
| 2833 | Init->getMember(), |
| 2834 | TemplateArgs)); |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 2835 | if (!Member) { |
| 2836 | AnyErrors = true; |
| 2837 | New->setInvalidDecl(); |
| 2838 | continue; |
| 2839 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2840 | |
Sebastian Redl | 6df6548 | 2011-09-24 17:48:25 +0000 | [diff] [blame] | 2841 | MultiInitializer MultiInit(CreateMultiInitializer(NewArgs, Init)); |
| 2842 | NewInit = BuildMemberInitializer(Member, MultiInit, |
| 2843 | Init->getSourceLocation()); |
Francois Pichet | 00eb3f9 | 2010-12-04 09:14:42 +0000 | [diff] [blame] | 2844 | } else if (Init->isIndirectMemberInitializer()) { |
| 2845 | IndirectFieldDecl *IndirectMember = |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 2846 | cast_or_null<IndirectFieldDecl>(FindInstantiatedDecl( |
Francois Pichet | 00eb3f9 | 2010-12-04 09:14:42 +0000 | [diff] [blame] | 2847 | Init->getMemberLocation(), |
| 2848 | Init->getIndirectMember(), TemplateArgs)); |
| 2849 | |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 2850 | if (!IndirectMember) { |
| 2851 | AnyErrors = true; |
| 2852 | New->setInvalidDecl(); |
Sebastian Redl | 6df6548 | 2011-09-24 17:48:25 +0000 | [diff] [blame] | 2853 | continue; |
Douglas Gregor | b710722 | 2011-03-04 19:46:35 +0000 | [diff] [blame] | 2854 | } |
Sebastian Redl | 6df6548 | 2011-09-24 17:48:25 +0000 | [diff] [blame] | 2855 | |
| 2856 | MultiInitializer MultiInit(CreateMultiInitializer(NewArgs, Init)); |
| 2857 | NewInit = BuildMemberInitializer(IndirectMember, MultiInit, |
| 2858 | Init->getSourceLocation()); |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2859 | } |
| 2860 | |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 2861 | if (NewInit.isInvalid()) { |
| 2862 | AnyErrors = true; |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2863 | New->setInvalidDecl(); |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 2864 | } else { |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2865 | // FIXME: It would be nice if ASTOwningVector had a release function. |
| 2866 | NewArgs.take(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2867 | |
Richard Trieu | 90ab75b | 2011-09-09 03:18:59 +0000 | [diff] [blame] | 2868 | NewInits.push_back(NewInit.get()); |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2869 | } |
| 2870 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2871 | |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2872 | // Assign all the initializers to the new constructor. |
John McCall | d226f65 | 2010-08-21 09:40:31 +0000 | [diff] [blame] | 2873 | ActOnMemInitializers(New, |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2874 | /*FIXME: ColonLoc */ |
| 2875 | SourceLocation(), |
Douglas Gregor | 9db7dbb | 2010-01-31 09:12:51 +0000 | [diff] [blame] | 2876 | NewInits.data(), NewInits.size(), |
| 2877 | AnyErrors); |
Anders Carlsson | 0902531 | 2009-08-29 05:16:22 +0000 | [diff] [blame] | 2878 | } |
| 2879 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 2880 | // TODO: this could be templated if the various decl types used the |
| 2881 | // same method name. |
| 2882 | static bool isInstantiationOf(ClassTemplateDecl *Pattern, |
| 2883 | ClassTemplateDecl *Instance) { |
| 2884 | Pattern = Pattern->getCanonicalDecl(); |
| 2885 | |
| 2886 | do { |
| 2887 | Instance = Instance->getCanonicalDecl(); |
| 2888 | if (Pattern == Instance) return true; |
| 2889 | Instance = Instance->getInstantiatedFromMemberTemplate(); |
| 2890 | } while (Instance); |
| 2891 | |
| 2892 | return false; |
| 2893 | } |
| 2894 | |
Douglas Gregor | 0d69653 | 2009-09-28 06:34:35 +0000 | [diff] [blame] | 2895 | static bool isInstantiationOf(FunctionTemplateDecl *Pattern, |
| 2896 | FunctionTemplateDecl *Instance) { |
| 2897 | Pattern = Pattern->getCanonicalDecl(); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2898 | |
Douglas Gregor | 0d69653 | 2009-09-28 06:34:35 +0000 | [diff] [blame] | 2899 | do { |
| 2900 | Instance = Instance->getCanonicalDecl(); |
| 2901 | if (Pattern == Instance) return true; |
| 2902 | Instance = Instance->getInstantiatedFromMemberTemplate(); |
| 2903 | } while (Instance); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2904 | |
Douglas Gregor | 0d69653 | 2009-09-28 06:34:35 +0000 | [diff] [blame] | 2905 | return false; |
| 2906 | } |
| 2907 | |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2908 | static bool |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2909 | isInstantiationOf(ClassTemplatePartialSpecializationDecl *Pattern, |
| 2910 | ClassTemplatePartialSpecializationDecl *Instance) { |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2911 | Pattern |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2912 | = cast<ClassTemplatePartialSpecializationDecl>(Pattern->getCanonicalDecl()); |
| 2913 | do { |
| 2914 | Instance = cast<ClassTemplatePartialSpecializationDecl>( |
| 2915 | Instance->getCanonicalDecl()); |
| 2916 | if (Pattern == Instance) |
| 2917 | return true; |
| 2918 | Instance = Instance->getInstantiatedFromMember(); |
| 2919 | } while (Instance); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 2920 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 2921 | return false; |
| 2922 | } |
| 2923 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 2924 | static bool isInstantiationOf(CXXRecordDecl *Pattern, |
| 2925 | CXXRecordDecl *Instance) { |
| 2926 | Pattern = Pattern->getCanonicalDecl(); |
| 2927 | |
| 2928 | do { |
| 2929 | Instance = Instance->getCanonicalDecl(); |
| 2930 | if (Pattern == Instance) return true; |
| 2931 | Instance = Instance->getInstantiatedFromMemberClass(); |
| 2932 | } while (Instance); |
| 2933 | |
| 2934 | return false; |
| 2935 | } |
| 2936 | |
| 2937 | static bool isInstantiationOf(FunctionDecl *Pattern, |
| 2938 | FunctionDecl *Instance) { |
| 2939 | Pattern = Pattern->getCanonicalDecl(); |
| 2940 | |
| 2941 | do { |
| 2942 | Instance = Instance->getCanonicalDecl(); |
| 2943 | if (Pattern == Instance) return true; |
| 2944 | Instance = Instance->getInstantiatedFromMemberFunction(); |
| 2945 | } while (Instance); |
| 2946 | |
| 2947 | return false; |
| 2948 | } |
| 2949 | |
| 2950 | static bool isInstantiationOf(EnumDecl *Pattern, |
| 2951 | EnumDecl *Instance) { |
| 2952 | Pattern = Pattern->getCanonicalDecl(); |
| 2953 | |
| 2954 | do { |
| 2955 | Instance = Instance->getCanonicalDecl(); |
| 2956 | if (Pattern == Instance) return true; |
| 2957 | Instance = Instance->getInstantiatedFromMemberEnum(); |
| 2958 | } while (Instance); |
| 2959 | |
| 2960 | return false; |
| 2961 | } |
| 2962 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2963 | static bool isInstantiationOf(UsingShadowDecl *Pattern, |
| 2964 | UsingShadowDecl *Instance, |
| 2965 | ASTContext &C) { |
| 2966 | return C.getInstantiatedFromUsingShadowDecl(Instance) == Pattern; |
| 2967 | } |
| 2968 | |
| 2969 | static bool isInstantiationOf(UsingDecl *Pattern, |
| 2970 | UsingDecl *Instance, |
| 2971 | ASTContext &C) { |
| 2972 | return C.getInstantiatedFromUsingDecl(Instance) == Pattern; |
| 2973 | } |
| 2974 | |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 2975 | static bool isInstantiationOf(UnresolvedUsingValueDecl *Pattern, |
| 2976 | UsingDecl *Instance, |
| 2977 | ASTContext &C) { |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2978 | return C.getInstantiatedFromUsingDecl(Instance) == Pattern; |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 2979 | } |
| 2980 | |
| 2981 | static bool isInstantiationOf(UnresolvedUsingTypenameDecl *Pattern, |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 2982 | UsingDecl *Instance, |
| 2983 | ASTContext &C) { |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 2984 | return C.getInstantiatedFromUsingDecl(Instance) == Pattern; |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 2985 | } |
| 2986 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 2987 | static bool isInstantiationOfStaticDataMember(VarDecl *Pattern, |
| 2988 | VarDecl *Instance) { |
| 2989 | assert(Instance->isStaticDataMember()); |
| 2990 | |
| 2991 | Pattern = Pattern->getCanonicalDecl(); |
| 2992 | |
| 2993 | do { |
| 2994 | Instance = Instance->getCanonicalDecl(); |
| 2995 | if (Pattern == Instance) return true; |
| 2996 | Instance = Instance->getInstantiatedFromStaticDataMember(); |
| 2997 | } while (Instance); |
| 2998 | |
| 2999 | return false; |
| 3000 | } |
| 3001 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 3002 | // Other is the prospective instantiation |
| 3003 | // D is the prospective pattern |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3004 | static bool isInstantiationOf(ASTContext &Ctx, NamedDecl *D, Decl *Other) { |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 3005 | if (D->getKind() != Other->getKind()) { |
John McCall | 7ba107a | 2009-11-18 02:36:19 +0000 | [diff] [blame] | 3006 | if (UnresolvedUsingTypenameDecl *UUD |
| 3007 | = dyn_cast<UnresolvedUsingTypenameDecl>(D)) { |
| 3008 | if (UsingDecl *UD = dyn_cast<UsingDecl>(Other)) { |
| 3009 | return isInstantiationOf(UUD, UD, Ctx); |
| 3010 | } |
| 3011 | } |
| 3012 | |
| 3013 | if (UnresolvedUsingValueDecl *UUD |
| 3014 | = dyn_cast<UnresolvedUsingValueDecl>(D)) { |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 3015 | if (UsingDecl *UD = dyn_cast<UsingDecl>(Other)) { |
| 3016 | return isInstantiationOf(UUD, UD, Ctx); |
| 3017 | } |
| 3018 | } |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3019 | |
Anders Carlsson | 0d8df78 | 2009-08-29 19:37:28 +0000 | [diff] [blame] | 3020 | return false; |
| 3021 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3022 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3023 | if (CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(Other)) |
| 3024 | return isInstantiationOf(cast<CXXRecordDecl>(D), Record); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3025 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3026 | if (FunctionDecl *Function = dyn_cast<FunctionDecl>(Other)) |
| 3027 | return isInstantiationOf(cast<FunctionDecl>(D), Function); |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3028 | |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3029 | if (EnumDecl *Enum = dyn_cast<EnumDecl>(Other)) |
| 3030 | return isInstantiationOf(cast<EnumDecl>(D), Enum); |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3031 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3032 | if (VarDecl *Var = dyn_cast<VarDecl>(Other)) |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3033 | if (Var->isStaticDataMember()) |
| 3034 | return isInstantiationOfStaticDataMember(cast<VarDecl>(D), Var); |
| 3035 | |
| 3036 | if (ClassTemplateDecl *Temp = dyn_cast<ClassTemplateDecl>(Other)) |
| 3037 | return isInstantiationOf(cast<ClassTemplateDecl>(D), Temp); |
Douglas Gregor | a5bf7f1 | 2009-08-28 22:03:51 +0000 | [diff] [blame] | 3038 | |
Douglas Gregor | 0d69653 | 2009-09-28 06:34:35 +0000 | [diff] [blame] | 3039 | if (FunctionTemplateDecl *Temp = dyn_cast<FunctionTemplateDecl>(Other)) |
| 3040 | return isInstantiationOf(cast<FunctionTemplateDecl>(D), Temp); |
| 3041 | |
Douglas Gregor | ed9c0f9 | 2009-10-29 00:04:11 +0000 | [diff] [blame] | 3042 | if (ClassTemplatePartialSpecializationDecl *PartialSpec |
| 3043 | = dyn_cast<ClassTemplatePartialSpecializationDecl>(Other)) |
| 3044 | return isInstantiationOf(cast<ClassTemplatePartialSpecializationDecl>(D), |
| 3045 | PartialSpec); |
| 3046 | |
Anders Carlsson | d8b285f | 2009-09-01 04:26:58 +0000 | [diff] [blame] | 3047 | if (FieldDecl *Field = dyn_cast<FieldDecl>(Other)) { |
| 3048 | if (!Field->getDeclName()) { |
| 3049 | // This is an unnamed field. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3050 | return Ctx.getInstantiatedFromUnnamedFieldDecl(Field) == |
Anders Carlsson | d8b285f | 2009-09-01 04:26:58 +0000 | [diff] [blame] | 3051 | cast<FieldDecl>(D); |
| 3052 | } |
| 3053 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3054 | |
John McCall | ed97649 | 2009-12-04 22:46:56 +0000 | [diff] [blame] | 3055 | if (UsingDecl *Using = dyn_cast<UsingDecl>(Other)) |
| 3056 | return isInstantiationOf(cast<UsingDecl>(D), Using, Ctx); |
| 3057 | |
| 3058 | if (UsingShadowDecl *Shadow = dyn_cast<UsingShadowDecl>(Other)) |
| 3059 | return isInstantiationOf(cast<UsingShadowDecl>(D), Shadow, Ctx); |
| 3060 | |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3061 | return D->getDeclName() && isa<NamedDecl>(Other) && |
| 3062 | D->getDeclName() == cast<NamedDecl>(Other)->getDeclName(); |
| 3063 | } |
| 3064 | |
| 3065 | template<typename ForwardIterator> |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3066 | static NamedDecl *findInstantiationOf(ASTContext &Ctx, |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3067 | NamedDecl *D, |
| 3068 | ForwardIterator first, |
| 3069 | ForwardIterator last) { |
| 3070 | for (; first != last; ++first) |
| 3071 | if (isInstantiationOf(Ctx, D, *first)) |
| 3072 | return cast<NamedDecl>(*first); |
| 3073 | |
| 3074 | return 0; |
| 3075 | } |
| 3076 | |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 3077 | /// \brief Finds the instantiation of the given declaration context |
| 3078 | /// within the current instantiation. |
| 3079 | /// |
| 3080 | /// \returns NULL if there was an error |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3081 | DeclContext *Sema::FindInstantiatedContext(SourceLocation Loc, DeclContext* DC, |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3082 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 3083 | if (NamedDecl *D = dyn_cast<NamedDecl>(DC)) { |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3084 | Decl* ID = FindInstantiatedDecl(Loc, D, TemplateArgs); |
John McCall | 02cace7 | 2009-08-28 07:59:38 +0000 | [diff] [blame] | 3085 | return cast_or_null<DeclContext>(ID); |
| 3086 | } else return DC; |
| 3087 | } |
| 3088 | |
Douglas Gregor | ed961e7 | 2009-05-27 17:54:46 +0000 | [diff] [blame] | 3089 | /// \brief Find the instantiation of the given declaration within the |
| 3090 | /// current instantiation. |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3091 | /// |
| 3092 | /// This routine is intended to be used when \p D is a declaration |
| 3093 | /// referenced from within a template, that needs to mapped into the |
| 3094 | /// corresponding declaration within an instantiation. For example, |
| 3095 | /// given: |
| 3096 | /// |
| 3097 | /// \code |
| 3098 | /// template<typename T> |
| 3099 | /// struct X { |
| 3100 | /// enum Kind { |
| 3101 | /// KnownValue = sizeof(T) |
| 3102 | /// }; |
| 3103 | /// |
| 3104 | /// bool getKind() const { return KnownValue; } |
| 3105 | /// }; |
| 3106 | /// |
| 3107 | /// template struct X<int>; |
| 3108 | /// \endcode |
| 3109 | /// |
| 3110 | /// In the instantiation of X<int>::getKind(), we need to map the |
| 3111 | /// EnumConstantDecl for KnownValue (which refers to |
| 3112 | /// X<T>::<Kind>::KnownValue) to its instantiation |
Douglas Gregor | ed961e7 | 2009-05-27 17:54:46 +0000 | [diff] [blame] | 3113 | /// (X<int>::<Kind>::KnownValue). InstantiateCurrentDeclRef() performs |
| 3114 | /// this mapping from within the instantiation of X<int>. |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3115 | NamedDecl *Sema::FindInstantiatedDecl(SourceLocation Loc, NamedDecl *D, |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3116 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3117 | DeclContext *ParentDC = D->getDeclContext(); |
Douglas Gregor | 550d9b2 | 2009-10-31 17:21:17 +0000 | [diff] [blame] | 3118 | if (isa<ParmVarDecl>(D) || isa<NonTypeTemplateParmDecl>(D) || |
Douglas Gregor | 6d3e627 | 2010-02-05 19:54:12 +0000 | [diff] [blame] | 3119 | isa<TemplateTypeParmDecl>(D) || isa<TemplateTemplateParmDecl>(D) || |
John McCall | 7667245 | 2010-08-19 23:06:02 +0000 | [diff] [blame] | 3120 | (ParentDC->isFunctionOrMethod() && ParentDC->isDependentContext())) { |
Douglas Gregor | 2bba76b | 2009-05-27 17:07:49 +0000 | [diff] [blame] | 3121 | // D is a local of some kind. Look into the map of local |
| 3122 | // declarations to their instantiations. |
Chris Lattner | d8e5499 | 2011-02-17 19:47:42 +0000 | [diff] [blame] | 3123 | typedef LocalInstantiationScope::DeclArgumentPack DeclArgumentPack; |
| 3124 | llvm::PointerUnion<Decl *, DeclArgumentPack *> *Found |
| 3125 | = CurrentInstantiationScope->findInstantiationOf(D); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3126 | |
Chris Lattner | 57ad378 | 2011-02-17 20:34:02 +0000 | [diff] [blame] | 3127 | if (Found) { |
| 3128 | if (Decl *FD = Found->dyn_cast<Decl *>()) |
| 3129 | return cast<NamedDecl>(FD); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3130 | |
Chris Lattner | 57ad378 | 2011-02-17 20:34:02 +0000 | [diff] [blame] | 3131 | unsigned PackIdx = ArgumentPackSubstitutionIndex; |
| 3132 | return cast<NamedDecl>((*Found->get<DeclArgumentPack *>())[PackIdx]); |
| 3133 | } |
| 3134 | |
| 3135 | // If we didn't find the decl, then we must have a label decl that hasn't |
| 3136 | // been found yet. Lazily instantiate it and return it now. |
| 3137 | assert(isa<LabelDecl>(D)); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3138 | |
Chris Lattner | 57ad378 | 2011-02-17 20:34:02 +0000 | [diff] [blame] | 3139 | Decl *Inst = SubstDecl(D, CurContext, TemplateArgs); |
| 3140 | assert(Inst && "Failed to instantiate label??"); |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3141 | |
Chris Lattner | 57ad378 | 2011-02-17 20:34:02 +0000 | [diff] [blame] | 3142 | CurrentInstantiationScope->InstantiatedLocal(D, Inst); |
| 3143 | return cast<LabelDecl>(Inst); |
Douglas Gregor | 2bba76b | 2009-05-27 17:07:49 +0000 | [diff] [blame] | 3144 | } |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3145 | |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3146 | if (CXXRecordDecl *Record = dyn_cast<CXXRecordDecl>(D)) { |
| 3147 | if (!Record->isDependentContext()) |
| 3148 | return D; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3149 | |
Douglas Gregor | 2c1227c | 2011-11-07 17:43:18 +0000 | [diff] [blame] | 3150 | // Determine whether this record is the "templated" declaration describing |
| 3151 | // a class template or class template partial specialization. |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3152 | ClassTemplateDecl *ClassTemplate = Record->getDescribedClassTemplate(); |
Douglas Gregor | 2c1227c | 2011-11-07 17:43:18 +0000 | [diff] [blame] | 3153 | if (ClassTemplate) |
| 3154 | ClassTemplate = ClassTemplate->getCanonicalDecl(); |
| 3155 | else if (ClassTemplatePartialSpecializationDecl *PartialSpec |
| 3156 | = dyn_cast<ClassTemplatePartialSpecializationDecl>(Record)) |
| 3157 | ClassTemplate = PartialSpec->getSpecializedTemplate()->getCanonicalDecl(); |
| 3158 | |
| 3159 | // Walk the current context to find either the record or an instantiation of |
| 3160 | // it. |
| 3161 | DeclContext *DC = CurContext; |
| 3162 | while (!DC->isFileContext()) { |
| 3163 | // If we're performing substitution while we're inside the template |
| 3164 | // definition, we'll find our own context. We're done. |
| 3165 | if (DC->Equals(Record)) |
| 3166 | return Record; |
| 3167 | |
| 3168 | if (CXXRecordDecl *InstRecord = dyn_cast<CXXRecordDecl>(DC)) { |
| 3169 | // Check whether we're in the process of instantiating a class template |
| 3170 | // specialization of the template we're mapping. |
| 3171 | if (ClassTemplateSpecializationDecl *InstSpec |
| 3172 | = dyn_cast<ClassTemplateSpecializationDecl>(InstRecord)){ |
| 3173 | ClassTemplateDecl *SpecTemplate = InstSpec->getSpecializedTemplate(); |
| 3174 | if (ClassTemplate && isInstantiationOf(ClassTemplate, SpecTemplate)) |
| 3175 | return InstRecord; |
| 3176 | } |
| 3177 | |
| 3178 | // Check whether we're in the process of instantiating a member class. |
| 3179 | if (isInstantiationOf(Record, InstRecord)) |
| 3180 | return InstRecord; |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3181 | } |
Douglas Gregor | 2c1227c | 2011-11-07 17:43:18 +0000 | [diff] [blame] | 3182 | |
| 3183 | |
| 3184 | // Move to the outer template scope. |
| 3185 | if (FunctionDecl *FD = dyn_cast<FunctionDecl>(DC)) { |
| 3186 | if (FD->getFriendObjectKind() && FD->getDeclContext()->isFileContext()){ |
| 3187 | DC = FD->getLexicalDeclContext(); |
| 3188 | continue; |
| 3189 | } |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3190 | } |
Douglas Gregor | 2c1227c | 2011-11-07 17:43:18 +0000 | [diff] [blame] | 3191 | |
| 3192 | DC = DC->getParent(); |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3193 | } |
Douglas Gregor | 8b013bd | 2010-02-05 22:40:03 +0000 | [diff] [blame] | 3194 | |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3195 | // Fall through to deal with other dependent record types (e.g., |
| 3196 | // anonymous unions in class templates). |
| 3197 | } |
John McCall | 52a575a | 2009-08-29 08:11:13 +0000 | [diff] [blame] | 3198 | |
Douglas Gregor | e95b409 | 2009-09-16 18:34:49 +0000 | [diff] [blame] | 3199 | if (!ParentDC->isDependentContext()) |
| 3200 | return D; |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3201 | |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3202 | ParentDC = FindInstantiatedContext(Loc, ParentDC, TemplateArgs); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3203 | if (!ParentDC) |
Douglas Gregor | 44c7384 | 2009-09-01 17:53:10 +0000 | [diff] [blame] | 3204 | return 0; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3205 | |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3206 | if (ParentDC != D->getDeclContext()) { |
| 3207 | // We performed some kind of instantiation in the parent context, |
| 3208 | // so now we need to look into the instantiated parent context to |
| 3209 | // find the instantiation of the declaration D. |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3210 | |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 3211 | // If our context used to be dependent, we may need to instantiate |
| 3212 | // it before performing lookup into that context. |
Douglas Gregor | eff1dbe | 2011-03-06 20:12:45 +0000 | [diff] [blame] | 3213 | bool IsBeingInstantiated = false; |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 3214 | if (CXXRecordDecl *Spec = dyn_cast<CXXRecordDecl>(ParentDC)) { |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3215 | if (!Spec->isDependentContext()) { |
| 3216 | QualType T = Context.getTypeDeclType(Spec); |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 3217 | const RecordType *Tag = T->getAs<RecordType>(); |
| 3218 | assert(Tag && "type of non-dependent record is not a RecordType"); |
Douglas Gregor | eff1dbe | 2011-03-06 20:12:45 +0000 | [diff] [blame] | 3219 | if (Tag->isBeingDefined()) |
| 3220 | IsBeingInstantiated = true; |
John McCall | 3cb0ebd | 2010-03-10 03:28:59 +0000 | [diff] [blame] | 3221 | if (!Tag->isBeingDefined() && |
| 3222 | RequireCompleteType(Loc, T, diag::err_incomplete_type)) |
| 3223 | return 0; |
Douglas Gregor | a43064c | 2010-11-05 23:22:45 +0000 | [diff] [blame] | 3224 | |
| 3225 | ParentDC = Tag->getDecl(); |
Douglas Gregor | 7c1e98f | 2010-03-01 15:56:25 +0000 | [diff] [blame] | 3226 | } |
| 3227 | } |
| 3228 | |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3229 | NamedDecl *Result = 0; |
| 3230 | if (D->getDeclName()) { |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 3231 | DeclContext::lookup_result Found = ParentDC->lookup(D->getDeclName()); |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3232 | Result = findInstantiationOf(Context, D, Found.first, Found.second); |
| 3233 | } else { |
| 3234 | // Since we don't have a name for the entity we're looking for, |
| 3235 | // our only option is to walk through all of the declarations to |
| 3236 | // find that name. This will occur in a few cases: |
| 3237 | // |
| 3238 | // - anonymous struct/union within a template |
| 3239 | // - unnamed class/struct/union/enum within a template |
| 3240 | // |
| 3241 | // FIXME: Find a better way to find these instantiations! |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3242 | Result = findInstantiationOf(Context, D, |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 3243 | ParentDC->decls_begin(), |
| 3244 | ParentDC->decls_end()); |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3245 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3246 | |
Douglas Gregor | eff1dbe | 2011-03-06 20:12:45 +0000 | [diff] [blame] | 3247 | if (!Result) { |
| 3248 | if (isa<UsingShadowDecl>(D)) { |
| 3249 | // UsingShadowDecls can instantiate to nothing because of using hiding. |
| 3250 | } else if (Diags.hasErrorOccurred()) { |
| 3251 | // We've already complained about something, so most likely this |
| 3252 | // declaration failed to instantiate. There's no point in complaining |
| 3253 | // further, since this is normal in invalid code. |
| 3254 | } else if (IsBeingInstantiated) { |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3255 | // The class in which this member exists is currently being |
Douglas Gregor | eff1dbe | 2011-03-06 20:12:45 +0000 | [diff] [blame] | 3256 | // instantiated, and we haven't gotten around to instantiating this |
| 3257 | // member yet. This can happen when the code uses forward declarations |
| 3258 | // of member classes, and introduces ordering dependencies via |
| 3259 | // template instantiation. |
| 3260 | Diag(Loc, diag::err_member_not_yet_instantiated) |
| 3261 | << D->getDeclName() |
| 3262 | << Context.getTypeDeclType(cast<CXXRecordDecl>(ParentDC)); |
| 3263 | Diag(D->getLocation(), diag::note_non_instantiated_member_here); |
| 3264 | } else { |
| 3265 | // We should have found something, but didn't. |
| 3266 | llvm_unreachable("Unable to find instantiation of declaration!"); |
| 3267 | } |
| 3268 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3269 | |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3270 | D = Result; |
| 3271 | } |
| 3272 | |
Douglas Gregor | 815215d | 2009-05-27 05:35:12 +0000 | [diff] [blame] | 3273 | return D; |
| 3274 | } |
Douglas Gregor | d7f37bf | 2009-06-22 23:06:13 +0000 | [diff] [blame] | 3275 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3276 | /// \brief Performs template instantiation for all implicit template |
Douglas Gregor | d7f37bf | 2009-06-22 23:06:13 +0000 | [diff] [blame] | 3277 | /// instantiations we have seen until this point. |
Nick Lewycky | 8155910 | 2011-05-31 07:58:42 +0000 | [diff] [blame] | 3278 | void Sema::PerformPendingInstantiations(bool LocalOnly) { |
Douglas Gregor | 6e4a3f5 | 2011-07-28 19:49:54 +0000 | [diff] [blame] | 3279 | // Load pending instantiations from the external source. |
| 3280 | if (!LocalOnly && ExternalSource) { |
| 3281 | SmallVector<std::pair<ValueDecl *, SourceLocation>, 4> Pending; |
| 3282 | ExternalSource->ReadPendingInstantiations(Pending); |
| 3283 | PendingInstantiations.insert(PendingInstantiations.begin(), |
| 3284 | Pending.begin(), Pending.end()); |
| 3285 | } |
NAKAMURA Takumi | a789ca9 | 2011-10-08 11:31:46 +0000 | [diff] [blame] | 3286 | |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 3287 | while (!PendingLocalImplicitInstantiations.empty() || |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 3288 | (!LocalOnly && !PendingInstantiations.empty())) { |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 3289 | PendingImplicitInstantiation Inst; |
| 3290 | |
| 3291 | if (PendingLocalImplicitInstantiations.empty()) { |
Chandler Carruth | 62c78d5 | 2010-08-25 08:44:16 +0000 | [diff] [blame] | 3292 | Inst = PendingInstantiations.front(); |
| 3293 | PendingInstantiations.pop_front(); |
Douglas Gregor | 60406be | 2010-01-16 22:29:39 +0000 | [diff] [blame] | 3294 | } else { |
| 3295 | Inst = PendingLocalImplicitInstantiations.front(); |
| 3296 | PendingLocalImplicitInstantiations.pop_front(); |
| 3297 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3298 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3299 | // Instantiate function definitions |
| 3300 | if (FunctionDecl *Function = dyn_cast<FunctionDecl>(Inst.first)) { |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 3301 | PrettyDeclStackTraceEntry CrashInfo(*this, Function, SourceLocation(), |
| 3302 | "instantiating function definition"); |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 3303 | bool DefinitionRequired = Function->getTemplateSpecializationKind() == |
| 3304 | TSK_ExplicitInstantiationDefinition; |
| 3305 | InstantiateFunctionDefinition(/*FIXME:*/Inst.second, Function, true, |
| 3306 | DefinitionRequired); |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3307 | continue; |
| 3308 | } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3309 | |
Douglas Gregor | 7caa682 | 2009-07-24 20:34:43 +0000 | [diff] [blame] | 3310 | // Instantiate static data member definitions. |
| 3311 | VarDecl *Var = cast<VarDecl>(Inst.first); |
| 3312 | assert(Var->isStaticDataMember() && "Not a static data member?"); |
Anders Carlsson | c17fb7b | 2009-09-01 05:12:24 +0000 | [diff] [blame] | 3313 | |
Chandler Carruth | 291b441 | 2010-02-13 10:17:50 +0000 | [diff] [blame] | 3314 | // Don't try to instantiate declarations if the most recent redeclaration |
| 3315 | // is invalid. |
| 3316 | if (Var->getMostRecentDeclaration()->isInvalidDecl()) |
| 3317 | continue; |
| 3318 | |
| 3319 | // Check if the most recent declaration has changed the specialization kind |
| 3320 | // and removed the need for implicit instantiation. |
| 3321 | switch (Var->getMostRecentDeclaration()->getTemplateSpecializationKind()) { |
| 3322 | case TSK_Undeclared: |
David Blaikie | b219cfc | 2011-09-23 05:06:16 +0000 | [diff] [blame] | 3323 | llvm_unreachable("Cannot instantitiate an undeclared specialization."); |
Chandler Carruth | 291b441 | 2010-02-13 10:17:50 +0000 | [diff] [blame] | 3324 | case TSK_ExplicitInstantiationDeclaration: |
Chandler Carruth | 291b441 | 2010-02-13 10:17:50 +0000 | [diff] [blame] | 3325 | case TSK_ExplicitSpecialization: |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 3326 | continue; // No longer need to instantiate this type. |
| 3327 | case TSK_ExplicitInstantiationDefinition: |
| 3328 | // We only need an instantiation if the pending instantiation *is* the |
| 3329 | // explicit instantiation. |
| 3330 | if (Var != Var->getMostRecentDeclaration()) continue; |
Chandler Carruth | 291b441 | 2010-02-13 10:17:50 +0000 | [diff] [blame] | 3331 | case TSK_ImplicitInstantiation: |
| 3332 | break; |
| 3333 | } |
| 3334 | |
John McCall | f312b1e | 2010-08-26 23:41:50 +0000 | [diff] [blame] | 3335 | PrettyDeclStackTraceEntry CrashInfo(*this, Var, Var->getLocation(), |
| 3336 | "instantiating static data member " |
| 3337 | "definition"); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3338 | |
Chandler Carruth | 58e390e | 2010-08-25 08:27:02 +0000 | [diff] [blame] | 3339 | bool DefinitionRequired = Var->getTemplateSpecializationKind() == |
| 3340 | TSK_ExplicitInstantiationDefinition; |
| 3341 | InstantiateStaticDataMemberDefinition(/*FIXME:*/Inst.second, Var, true, |
| 3342 | DefinitionRequired); |
Douglas Gregor | d7f37bf | 2009-06-22 23:06:13 +0000 | [diff] [blame] | 3343 | } |
| 3344 | } |
John McCall | 0c01d18 | 2010-03-24 05:22:00 +0000 | [diff] [blame] | 3345 | |
| 3346 | void Sema::PerformDependentDiagnostics(const DeclContext *Pattern, |
| 3347 | const MultiLevelTemplateArgumentList &TemplateArgs) { |
| 3348 | for (DeclContext::ddiag_iterator I = Pattern->ddiag_begin(), |
| 3349 | E = Pattern->ddiag_end(); I != E; ++I) { |
| 3350 | DependentDiagnostic *DD = *I; |
| 3351 | |
| 3352 | switch (DD->getKind()) { |
| 3353 | case DependentDiagnostic::Access: |
| 3354 | HandleDependentAccessCheck(*DD, TemplateArgs); |
| 3355 | break; |
| 3356 | } |
| 3357 | } |
| 3358 | } |